/* roulang page: index */
:root {
            --primary: #C8875B;
            --primary-dark: #B97A4B;
            --primary-light: rgba(200, 135, 91, 0.15);
            --apricot: #D9A377;
            --dark: #3E2C23;
            --dark-2: #2F2620;
            --cream: #F7F1EB;
            --cream-2: #EFE7DD;
            --text: #2B2320;
            --text-secondary: #7A6E64;
            --text-muted: #A5978B;
            --success: #6E8B6E;
            --warning: #C2554A;
            --border: #E8DFD6;
            --radius-card: 16px;
            --radius-btn: 999px;
            --radius-img: 8px;
            --radius-input: 12px;
            --shadow: 0 4px 20px rgba(60, 40, 20, 0.06);
            --shadow-hover: 0 12px 32px rgba(60, 40, 20, 0.12);
            --transition: 0.3s ease;
            --spacing-section: 88px;
            --spacing-section-mobile: 52px;
            --bs-primary: #C8875B;
            --bs-primary-rgb: 200, 135, 91;
            --bs-body-font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --bs-body-color: #2B2320;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 90px;
        }

        body {
            font-family: var(--bs-body-font-family);
            color: var(--text);
            background: #fff;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        a {
            color: var(--text);
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover {
            color: var(--primary);
        }

        img {
            max-width: 100%;
            height: auto;
        }

        .container {
            max-width: 1200px;
        }

        .section-padding {
            padding: var(--spacing-section) 0;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 6px 16px;
            border-radius: 999px;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 2.1rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            line-height: 1.25;
            margin-bottom: 12px;
            color: var(--text);
        }

        .section-subtitle {
            font-size: 1.02rem;
            color: var(--text-secondary);
            max-width: 640px;
            line-height: 1.75;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 20px 0;
            transition: background 0.3s ease, box-shadow 0.3s ease, padding 0.3s ease;
            background: transparent;
            border-bottom: 1px solid transparent;
        }
        .site-header.scrolled {
            background: rgba(247, 241, 235, 0.94);
            -webkit-backdrop-filter: blur(12px);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(232, 223, 214, 0.75);
            box-shadow: 0 4px 20px rgba(60, 40, 20, 0.06);
            padding: 14px 0;
        }
        .site-header .navbar {
            padding: 0;
        }
        .navbar-brand {
            font-size: 24px;
            font-weight: 800;
            letter-spacing: -0.015em;
            display: flex;
            align-items: center;
            gap: 0;
            color: var(--text);
        }
        .navbar-brand .brand-accent {
            color: var(--primary);
        }
        .navbar-brand .brand-text {
            color: var(--text);
        }
        .navbar-brand:hover {
            color: var(--text);
        }
        .navbar-nav {
            gap: 4px;
        }
        .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            padding: 8px 14px;
            border-radius: 999px;
            position: relative;
            letter-spacing: 0.03em;
            transition: color 0.25s ease, background 0.25s ease;
        }
        .navbar-nav .nav-link:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .navbar-nav .nav-link.active {
            color: var(--primary);
            font-weight: 700;
            background: var(--primary-light);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .nav-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(255, 255, 255, 0.85);
            border: 1px solid rgba(200, 135, 91, 0.35);
            padding: 5px 14px;
            border-radius: 999px;
            white-space: nowrap;
        }
        .nav-badge i {
            font-size: 8px;
            color: var(--success);
        }
        .navbar-toggler {
            border: none;
            padding: 6px 10px;
        }
        .navbar-toggler:focus {
            box-shadow: none;
        }
        .navbar-toggler i {
            font-size: 22px;
            color: var(--text);
        }
        .site-header:not(.scrolled) .navbar-toggler i {
            color: #fff;
        }

        /* ===== Hero ===== */
        .hero {
            min-height: 100vh;
            min-height: 720px;
            display: flex;
            align-items: center;
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            isolation: isolate;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(105deg, rgba(47, 38, 32, 0.85) 0%, rgba(62, 44, 35, 0.55) 50%, rgba(62, 44, 35, 0.18) 100%);
            z-index: -1;
        }
        .hero-content {
            position: relative;
            z-index: 1;
            color: #fff;
            max-width: 760px;
            padding-top: 80px;
        }
        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: rgba(255, 255, 255, 0.82);
            margin-bottom: 18px;
            border: 1px solid rgba(255, 255, 255, 0.25);
            padding: 6px 18px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.08);
        }
        .hero-divider {
            width: 56px;
            height: 3px;
            background: var(--apricot);
            border-radius: 3px;
            margin-bottom: 22px;
        }
        .hero-title {
            font-size: 3.6rem;
            font-weight: 900;
            line-height: 1.1;
            letter-spacing: -0.02em;
            margin-bottom: 18px;
            color: #fff;
        }
        .hero-title .brand-accent {
            color: var(--apricot);
        }
        .hero-subtitle {
            font-size: 1.18rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin-bottom: 36px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .hero-actions .btn {
            font-size: 16px;
            padding: 14px 32px;
        }
        .hero-scroll {
            position: absolute;
            bottom: 36px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.4);
            color: #fff;
            font-size: 16px;
            transition: all 0.3s ease;
        }
        .hero-scroll:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.7);
            transform: translateX(-50%) translateY(3px);
        }

        /* ===== Brand Story ===== */
        .brand-story {
            background: var(--cream);
        }
        .story-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 64px;
            align-items: center;
        }
        .story-text .section-title {
            font-size: 2.2rem;
            margin-bottom: 24px;
        }
        .story-text p {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-secondary);
            margin-bottom: 18px;
        }
        .story-text p strong {
            color: var(--text);
            font-weight: 700;
        }
        .story-media {
            position: relative;
        }
        .story-media img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
            border-radius: 18px;
            box-shadow: var(--shadow);
            position: relative;
            z-index: 1;
        }
        .story-media::after {
            content: '杏运';
            position: absolute;
            bottom: -24px;
            right: -10px;
            font-size: 88px;
            font-weight: 900;
            line-height: 1;
            color: rgba(200, 135, 91, 0.22);
            z-index: 0;
            letter-spacing: -0.03em;
        }

        /* ===== Stats ===== */
        .stats-section {
            background: var(--dark-2);
            color: #fff;
            padding: 72px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
        }
        .stat-item {
            text-align: center;
            padding: 24px 12px;
            border-left: 1px solid rgba(255, 255, 255, 0.1);
        }
        .stat-item:first-child {
            border-left: none;
        }
        .stat-number {
            font-size: 3.2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.1;
            letter-spacing: -0.02em;
            display: block;
        }
        .stat-number .stat-unit {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--apricot);
            margin-left: 4px;
        }
        .stat-label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 8px;
            display: block;
            letter-spacing: 0.05em;
        }

        /* ===== Featured Cards ===== */
        .featured-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .featured-card {
            background: #fff;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid rgba(232, 223, 214, 0.55);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        .featured-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .featured-card:nth-child(2) {
            transform: translateY(28px);
        }
        .featured-card:nth-child(2):hover {
            transform: translateY(22px);
            box-shadow: var(--shadow-hover);
        }
        .featured-card:nth-child(3) {
            transform: translateY(14px);
        }
        .featured-card:nth-child(3):hover {
            transform: translateY(8px);
            box-shadow: var(--shadow-hover);
        }
        .featured-media {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }
        .featured-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .featured-card:hover .featured-media img {
            transform: scale(1.04);
        }
        .featured-media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(47, 38, 32, 0.3), transparent 50%);
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .featured-card:hover .featured-media::after {
            opacity: 1;
        }
        .featured-body {
            padding: 26px 28px 30px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }
        .featured-tag {
            display: inline-flex;
            align-self: flex-start;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 14px;
        }
        .featured-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 10px;
            color: var(--text);
        }
        .featured-body p {
            font-size: 14.5px;
            line-height: 1.7;
            color: var(--text-secondary);
            margin-bottom: 20px;
            flex-grow: 1;
        }
        .featured-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .featured-link i {
            transition: transform 0.25s ease;
        }
        .featured-link:hover {
            color: var(--primary-dark);
        }
        .featured-link:hover i {
            transform: translateX(4px);
        }

        /* ===== News Section ===== */
        .news-section {
            background: #fff;
        }
        .news-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 36px;
            flex-wrap: wrap;
            gap: 16px;
        }
        .news-more {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .news-more i {
            transition: transform 0.25s ease;
        }
        .news-more:hover i {
            transform: translateX(4px);
        }
        .news-list {
            display: flex;
            flex-direction: column;
        }
        .news-item-link {
            display: block;
            border-bottom: 1px solid var(--border);
        }
        .news-item-link:last-child {
            border-bottom: none;
        }
        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 32px;
            padding: 28px 0;
            transition: background 0.25s ease;
            border-radius: 12px;
            padding-left: 16px;
            padding-right: 16px;
            margin-left: -16px;
            margin-right: -16px;
        }
        .news-item:hover {
            background: var(--cream);
        }
        .news-meta-left {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            min-width: 92px;
        }
        .news-date-box {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            background: var(--cream-2);
            border-radius: 10px;
            padding: 8px 12px;
            text-align: center;
            line-height: 1.4;
            width: 84px;
        }
        .news-date-box .day {
            display: block;
            font-size: 20px;
            font-weight: 800;
            color: var(--text);
        }
        .news-cat {
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 3px 10px;
            border-radius: 999px;
            white-space: nowrap;
        }
        .news-main {
            flex: 1;
            padding-top: 2px;
        }
        .news-main h3 {
            font-size: 1.1rem;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 8px;
            color: var(--text);
            transition: color 0.2s ease;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-main p {
            font-size: 14.5px;
            line-height: 1.7;
            color: var(--text-secondary);
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item:hover .news-main h3 {
            color: var(--primary);
        }
        .news-read-more {
            font-size: 13.5px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .news-read-more i {
            transition: transform 0.25s ease;
        }
        .news-item:hover .news-read-more i {
            transform: translateX(4px);
        }
        .news-empty {
            text-align: center;
            padding: 60px 20px;
            border: 1px dashed var(--border);
            border-radius: var(--radius-card);
            background: var(--cream);
        }
        .news-empty p {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }
        .empty-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--cream-2);
            color: var(--text-muted);
            font-size: 22px;
            margin-bottom: 16px;
        }

        /* ===== Trust ===== */
        .trust-section {
            background: var(--dark);
            color: #fff;
            padding: var(--spacing-section) 0;
        }
        .trust-inner {
            max-width: 920px;
            margin: 0 auto;
            text-align: center;
        }
        .trust-inner .section-tag {
            color: var(--apricot);
            background: rgba(255, 255, 255, 0.1);
        }
        .trust-quote {
            font-size: 1.7rem;
            font-weight: 600;
            line-height: 1.5;
            color: #fff;
            margin-bottom: 24px;
            letter-spacing: -0.01em;
        }
        .trust-quote i {
            color: var(--apricot);
            margin-right: 6px;
        }
        .trust-source {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
        }
        .trust-tags {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 32px;
        }
        .trust-tag {
            font-size: 14px;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.85);
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.16);
            padding: 8px 22px;
            border-radius: 999px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--cream);
        }
        .faq-wrap {
            max-width: 820px;
            margin: 40px auto 0;
        }
        .faq-item {
            background: #fff;
            border-radius: 14px;
            border: 1px solid var(--border);
            margin-bottom: 14px;
            overflow: hidden;
            transition: box-shadow 0.3s ease, border-color 0.3s ease;
        }
        .faq-item.active {
            box-shadow: var(--shadow);
            border-color: rgba(200, 135, 91, 0.35);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            background: transparent;
            border: none;
            padding: 20px 24px;
            text-align: left;
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            cursor: pointer;
            transition: background 0.25s ease;
        }
        .faq-question:hover {
            background: var(--cream);
        }
        .faq-question:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: -2px;
            border-radius: 14px;
        }
        .faq-icon {
            position: relative;
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            margin-left: 16px;
        }
        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            background: var(--primary);
            border-radius: 3px;
            transition: transform 0.3s ease;
        }
        .faq-icon::before {
            width: 14px;
            height: 2px;
        }
        .faq-icon::after {
            width: 2px;
            height: 14px;
        }
        .faq-item.active .faq-icon::after {
            transform: translate(-50%, -50%) rotate(90deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        .faq-answer-inner {
            padding: 0 24px 22px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
        }
        .faq-answer-inner p {
            margin-bottom: 10px;
        }

        /* ===== CTA Subscribe ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--dark-2), var(--dark));
            color: #fff;
            padding: 84px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            right: -120px;
            top: -120px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(200, 135, 91, 0.15);
        }
        .cta-section::after {
            content: '';
            position: absolute;
            left: -80px;
            bottom: -80px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(200, 135, 91, 0.08);
        }
        .cta-inner {
            position: relative;
            z-index: 1;
            max-width: 680px;
            margin: 0 auto;
            text-align: center;
        }
        .cta-inner .section-title {
            color: #fff;
            font-size: 2rem;
            margin-bottom: 14px;
        }
        .cta-inner .section-subtitle {
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 36px;
        }
        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 520px;
            margin: 0 auto;
        }
        .subscribe-form .form-control {
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: 999px;
            padding: 14px 24px;
            font-size: 15px;
            color: #fff;
            transition: all 0.3s ease;
        }
        .subscribe-form .form-control::-webkit-input-placeholder {
            color: rgba(255, 255, 255, 0.55);
        }
        .subscribe-form .form-control::-moz-placeholder {
            color: rgba(255, 255, 255, 0.55);
        }
        .subscribe-form .form-control:-ms-input-placeholder {
            color: rgba(255, 255, 255, 0.55);
        }
        .subscribe-form .form-control:focus {
            background: rgba(255, 255, 255, 0.18);
            border-color: var(--apricot);
            box-shadow: 0 0 0 3px rgba(217, 163, 119, 0.2);
            color: #fff;
        }
        .subscribe-form .btn {
            padding: 14px 36px;
            font-size: 15px;
            border-radius: 999px;
            white-space: nowrap;
            flex-shrink: 0;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark-2);
            color: rgba(255, 255, 255, 0.75);
            padding: 72px 0 0;
            font-size: 14.5px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.9fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
        }
        .footer-brand {
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            display: inline-block;
        }
        .footer-brand .brand-accent {
            color: var(--apricot);
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }
        .footer-heading {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.04em;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: color 0.25s ease, padding-left 0.25s ease;
        }
        .footer-links a:hover {
            color: var(--apricot);
            padding-left: 4px;
        }
        .footer-contact p {
            margin-bottom: 10px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            line-height: 1.7;
        }
        .footer-contact i {
            color: var(--apricot);
            margin-right: 8px;
            width: 16px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
            text-align: center;
        }

        /* ===== Button overrides ===== */
        .btn {
            border-radius: var(--radius-btn);
            padding: 12px 32px;
            font-weight: 600;
            font-size: 15px;
            transition: all 0.3s ease;
            border-width: 1px;
        }
        .btn-primary {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(60, 40, 20, 0.18);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow);
        }
        .btn-outline-light {
            border-color: rgba(255, 255, 255, 0.6);
            color: #fff;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
        }
        .btn-outline-primary {
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline-primary:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(60, 40, 20, 0.15);
        }
        .btn-lg {
            padding: 14px 36px;
            font-size: 16px;
        }

        /* ===== Animations ===== */
        .animate-on-scroll {
            opacity: 0;
            transform: translateY(28px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .animate-on-scroll.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .hero-content .hero-eyebrow,
        .hero-content .hero-divider,
        .hero-content .hero-title,
        .hero-content .hero-subtitle,
        .hero-content .hero-actions,
        .hero-content .hero-scroll {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.5s ease, transform 0.5s ease;
        }
        .hero-entered .hero-eyebrow {
            opacity: 1;
            transform: translateY(0);
            transition-delay: 0s;
        }
        .hero-entered .hero-divider {
            opacity: 1;
            transform: translateY(0);
            transition-delay: 0.1s;
        }
        .hero-entered .hero-title {
            opacity: 1;
            transform: translateY(0);
            transition-delay: 0.2s;
        }
        .hero-entered .hero-subtitle {
            opacity: 1;
            transform: translateY(0);
            transition-delay: 0.35s;
        }
        .hero-entered .hero-actions {
            opacity: 1;
            transform: translateY(0);
            transition-delay: 0.5s;
        }
        .hero-entered .hero-scroll {
            opacity: 1;
            transform: translateY(0);
            transition-delay: 0.7s;
        }

        /* ===== Responsive ===== */
        @media (max-width: 991.98px) {
            .navbar-collapse {
                background: rgba(247, 241, 235, 0.98);
                border-radius: 16px;
                padding: 20px;
                margin-top: 14px;
                box-shadow: var(--shadow);
            }
            .navbar-nav {
                gap: 0;
                margin-bottom: 14px;
            }
            .navbar-nav .nav-link {
                padding: 12px 16px;
                border-radius: 10px;
                font-size: 16px;
            }
            .nav-actions {
                flex-direction: column;
                align-items: stretch;
                gap: 12px;
                border-top: 1px solid var(--border);
                padding-top: 16px;
            }
            .nav-badge {
                justify-content: center;
            }
            .nav-actions .btn {
                width: 100%;
            }
            .site-header:not(.scrolled) .navbar-collapse {
                background: rgba(247, 241, 235, 0.98);
            }
            .site-header:not(.scrolled) .navbar-toggler i {
                color: #fff;
            }
            .site-header:not(.scrolled) .navbar-collapse .nav-link {
                color: var(--text);
            }
            .site-header:not(.scrolled) .navbar-collapse .nav-link:hover,
            .site-header:not(.scrolled) .navbar-collapse .nav-link.active {
                color: var(--primary);
            }
            .hero {
                min-height: 640px;
            }
            .hero-title {
                font-size: 2.8rem;
            }
            .hero-subtitle {
                font-size: 1.05rem;
            }
            .story-grid {
                grid-template-columns: 1fr;
                gap: 48px;
            }
            .story-media::after {
                display: none;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .stat-item {
                border-left: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            }
            .featured-cards {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .featured-card:nth-child(2),
            .featured-card:nth-child(3) {
                transform: none;
            }
            .featured-card:nth-child(2):hover,
            .featured-card:nth-child(3):hover {
                transform: translateY(-4px);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }
        }

        @media (max-width: 767.98px) {
            .section-padding {
                padding: var(--spacing-section-mobile) 0;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .hero {
                min-height: 560px;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: flex-start;
            }
            .hero-actions .btn {
                width: 100%;
                text-align: center;
            }
            .stats-section {
                padding: 48px 0;
            }
            .stat-number {
                font-size: 2.4rem;
            }
            .news-item {
                flex-direction: column;
                gap: 16px;
                padding: 20px 0;
                margin-left: 0;
                margin-right: 0;
                padding-left: 0;
                padding-right: 0;
            }
            .news-meta-left {
                flex-direction: row;
                align-items: center;
                gap: 10px;
                min-width: auto;
            }
            .news-date-box {
                width: auto;
            }
            .trust-quote {
                font-size: 1.3rem;
            }
            .cta-section {
                padding: 56px 0;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form .btn {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 575.98px) {
            .container {
                padding-left: 18px;
                padding-right: 18px;
            }
            .hero-title {
                font-size: 1.9rem;
            }
            .hero-scroll {
                display: none;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .stat-item {
                text-align: center;
                padding: 16px;
            }
            .featured-body {
                padding: 20px 20px 24px;
            }
            .section-tag {
                font-size: 13px;
                padding: 5px 13px;
            }
            .section-subtitle {
                font-size: 0.95rem;
            }
            .news-main h3 {
                font-size: 1rem;
            }
            .news-main p {
                font-size: 13.5px;
            }
            .faq-question {
                font-size: 15px;
                padding: 16px 18px;
            }
            .faq-answer-inner {
                padding: 0 18px 18px;
                font-size: 14px;
            }
        }

        /* ===== Reduced Motion ===== */
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
            .hero-content .hero-eyebrow,
            .hero-content .hero-divider,
            .hero-content .hero-title,
            .hero-content .hero-subtitle,
            .hero-content .hero-actions,
            .hero-content .hero-scroll {
                opacity: 1;
                transform: none;
                transition: none;
            }
            .animate-on-scroll {
                opacity: 1;
                transform: none;
                transition: none;
            }
            .featured-card:nth-child(2),
            .featured-card:nth-child(3) {
                transform: none;
            }
            .featured-card:hover .featured-media img {
                transform: none;
            }
        }

/* roulang page: article */
:root {
            --primary: #c8875b;
            --primary-dark: #b97a4b;
            --primary-light: #f0dccc;
            --deep: #3e2c23;
            --deep-2: #2f2620;
            --cream: #f7f1eb;
            --cream-2: #efe7dd;
            --text-main: #2b2320;
            --text-sub: #7a6e64;
            --text-weak: #a5978b;
            --border: #e8ddd2;
            --success: #6e8b6e;
            --warning: #c2554a;
            --radius-card: 16px;
            --radius-btn: 999px;
            --radius-img: 8px;
            --radius-input: 12px;
            --shadow-sm: 0 4px 20px rgba(60, 40, 20, 0.06);
            --shadow-md: 0 12px 32px rgba(60, 40, 20, 0.12);
            --transition: 0.3s ease;
            --font-heading: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", sans-serif;
            --font-body: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", sans-serif;
            --bs-body-font-family: var(--font-body);
            --bs-body-color: var(--text-main);
            --bs-primary: var(--primary);
            --bs-primary-rgb: 200, 135, 91;
        }

        *, *::before, *::after {
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-body);
            color: var(--text-main);
            background: #fff;
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }

        body.nav-scrolled {
            padding-top: 0;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--primary-dark);
        }

        img {
            max-width: 100%;
            height: auto;
        }

        .container {
            max-width: 1200px;
        }

        /* 导航 */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: transparent;
            transition: background var(--transition), box-shadow var(--transition);
        }

        .site-header.scrolled {
            background: rgba(247, 241, 235, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 4px 20px rgba(60, 40, 20, 0.04);
        }

        .navbar {
            padding: 16px 0;
            transition: padding var(--transition);
        }

        .site-header.scrolled .navbar {
            padding: 10px 0;
        }

        .navbar-brand {
            font-size: 24px;
            font-weight: 800;
            letter-spacing: -0.01em;
            display: inline-flex;
            align-items: center;
            gap: 2px;
            font-family: var(--font-heading);
            line-height: 1.2;
        }

        .brand-accent {
            color: var(--primary);
        }

        .brand-text {
            color: var(--deep);
        }

        .navbar-nav {
            gap: 4px;
        }

        .nav-item .nav-link {
            color: var(--text-main);
            font-size: 15px;
            font-weight: 500;
            letter-spacing: 0.05em;
            padding: 10px 16px;
            border-radius: 8px;
            position: relative;
            transition: color var(--transition), background var(--transition);
        }

        .nav-item .nav-link::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: 60%;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: transform var(--transition);
            transform-origin: center;
        }

        .nav-item .nav-link:hover {
            color: var(--primary);
            background: rgba(200, 135, 91, 0.08);
        }

        .nav-item .nav-link:hover::after {
            transform: translateX(-50%) scaleX(1);
        }

        .nav-item .nav-link.active {
            color: var(--primary);
            font-weight: 700;
            background: rgba(200, 135, 91, 0.10);
        }

        .nav-item .nav-link.active::after {
            transform: translateX(-50%) scaleX(1);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .nav-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary-light);
            border-radius: 999px;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 600;
            white-space: nowrap;
        }

        .nav-badge i {
            font-size: 8px;
            color: var(--success);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(0.85); }
        }

        .btn {
            border-radius: var(--radius-btn);
            font-weight: 600;
            transition: all var(--transition);
        }

        .btn-primary {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            padding: 12px 28px;
        }

        .btn-primary:hover, .btn-primary:focus {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200, 135, 91, 0.25);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(200, 135, 91, 0.2);
        }

        .btn-lg {
            padding: 14px 36px;
            font-size: 16px;
        }

        .btn-sm {
            padding: 8px 20px;
            font-size: 14px;
        }

        .navbar-toggler {
            border: none;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--deep);
            background: var(--cream);
            border-radius: 12px;
            font-size: 18px;
        }

        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* 文章页头部 */
        .article-hero {
            position: relative;
            padding: 180px 0 60px;
            background: linear-gradient(to right, rgba(62, 44, 35, 0.85), rgba(62, 44, 35, 0.65)), url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            color: #fff;
        }

        .article-hero .container {
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            --bs-breadcrumb-divider: '›';
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            background: transparent;
            padding: 0;
            margin: 0 0 24px;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
            transition: color var(--transition);
        }

        .breadcrumb a:hover {
            color: #fff;
        }

        .breadcrumb .breadcrumb-item + .breadcrumb-item::before {
            color: rgba(255, 255, 255, 0.5);
        }

        .breadcrumb .breadcrumb-item.active {
            color: rgba(255, 255, 255, 0.6);
            max-width: 200px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .article-hero-title {
            font-size: 44px;
            line-height: 1.2;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
            color: #fff;
            font-family: var(--font-heading);
        }

        .article-hero-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
        }

        .article-hero-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-hero-meta i {
            color: var(--primary);
        }

        .article-hero-tag {
            display: inline-block;
            background: rgba(255, 255, 255, 0.18);
            backdrop-filter: blur(4px);
            color: #fff;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        /* 正文区 */
        .article-main {
            padding: 72px 0 40px;
            background: var(--cream);
        }

        .article-content-wrap {
            max-width: 780px;
            margin: 0 auto;
        }

        .article-content {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 48px 56px;
            box-shadow: var(--shadow-sm);
            line-height: 2;
            font-size: 17px;
            color: var(--text-main);
            word-wrap: break-word;
            overflow-wrap: break-word;
        }

        .article-content h1,
        .article-content h2 {
            font-family: var(--font-heading);
            font-weight: 700;
            color: var(--deep);
            margin-top: 1.6em;
            margin-bottom: 0.5em;
            line-height: 1.3;
        }

        .article-content h1 {
            font-size: 28px;
        }

        .article-content h2 {
            font-size: 24px;
        }

        .article-content h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--deep);
            margin-top: 1.4em;
        }

        .article-content p {
            margin-bottom: 1.2em;
        }

        .article-content ul {
            margin-bottom: 1.2em;
            padding-left: 0.5em;
        }

        .article-content ul li {
            position: relative;
            padding-left: 28px;
            margin-bottom: 0.6em;
        }

        .article-content ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.9em;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
            opacity: 0.7;
        }

        .article-content ol {
            margin-bottom: 1.2em;
            padding-left: 1.2em;
            counter-reset: num;
        }

        .article-content ol li {
            position: relative;
            padding-left: 8px;
            margin-bottom: 0.6em;
        }

        .article-content blockquote {
            border-left: 3px solid var(--primary);
            background: var(--cream);
            padding: 16px 24px;
            margin: 1.6em 0;
            border-radius: 0 8px 8px 0;
            color: var(--text-sub);
            font-style: normal;
        }

        .article-content img {
            border-radius: 8px;
            margin: 1.5em 0;
            box-shadow: var(--shadow-sm);
        }

        .article-content hr {
            border-color: var(--border);
            margin: 2em 0;
        }

        .article-content a {
            text-decoration: underline;
            text-underline-offset: 4px;
        }

        .article-content a:hover {
            color: var(--primary-dark);
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5em 0;
            font-size: 15px;
        }

        .article-content table th,
        .article-content table td {
            border: 1px solid var(--border);
            padding: 10px 14px;
            text-align: left;
        }

        .article-content table th {
            background: var(--cream);
            font-weight: 600;
            color: var(--deep);
        }

        /* 文章空态 */
        .article-empty {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 80px 40px;
            text-align: center;
            box-shadow: var(--shadow-sm);
        }

        .article-empty-icon {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: var(--cream);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: var(--primary);
            margin: 0 auto 20px;
        }

        .article-empty h2 {
            font-size: 22px;
            font-weight: 600;
            color: var(--deep);
            margin-bottom: 12px;
        }

        .article-empty p {
            color: var(--text-sub);
            margin-bottom: 28px;
            font-size: 15px;
        }

        /* 相关推荐 */
        .related-section {
            padding: 64px 0 80px;
            background: #fff;
        }

        .related-section .container {
            max-width: 1200px;
        }

        .section-title-row {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 36px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--deep);
            font-family: var(--font-heading);
            letter-spacing: -0.01em;
            margin-bottom: 8px;
        }

        .section-subtitle {
            color: var(--text-sub);
            font-size: 15px;
        }

        .related-card {
            background: var(--cream);
            border-radius: var(--radius-card);
            padding: 24px;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition), box-shadow var(--transition);
            text-decoration: none;
            color: var(--text-main);
            border: 1px solid transparent;
        }

        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            color: var(--text-main);
            border-color: var(--primary-light);
        }

        .related-card .related-date {
            font-size: 13px;
            color: var(--text-weak);
            display: flex;
            align-items: center;
            gap: 6px;
            margin-bottom: 12px;
        }

        .related-card .related-title {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--deep);
            margin-bottom: 10px;
            transition: color var(--transition);
        }

        .related-card:hover .related-title {
            color: var(--primary);
        }

        .related-card .related-excerpt {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0;
        }

        .related-card .related-link {
            margin-top: auto;
            padding-top: 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .related-card .related-link i {
            transition: transform var(--transition);
        }

        .related-card:hover .related-link i {
            transform: translateX(4px);
        }

        .related-empty {
            text-align: center;
            padding: 40px;
            color: var(--text-sub);
            background: var(--cream);
            border-radius: var(--radius-card);
        }

        /* 返回列表 */
        .back-nav {
            display: flex;
            justify-content: center;
            margin-top: 32px;
        }

        .btn-outline-primary {
            border: 1px solid var(--primary);
            color: var(--primary);
            padding: 10px 28px;
            background: transparent;
        }

        .btn-outline-primary:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(200, 135, 91, 0.2);
        }

        /* CTA 区 */
        .cta-section {
            padding: 70px 0;
            background: linear-gradient(135deg, var(--deep) 0%, var(--deep-2) 100%);
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(200, 135, 91, 0.15);
            filter: blur(40px);
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-title {
            font-family: var(--font-heading);
            font-size: 36px;
            font-weight: 800;
            letter-spacing: -0.01em;
            margin-bottom: 14px;
        }

        .cta-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 640px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-light {
            background: #fff;
            color: var(--deep);
            border: 1px solid #fff;
        }

        .btn-light:hover {
            background: var(--cream);
            color: var(--deep);
            border-color: var(--cream);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 255, 255, 0.15);
        }

        .btn-outline-light {
            border: 1px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            background: transparent;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        /* 页脚 */
        .site-footer {
            background: var(--deep);
            color: #e8ddd2;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding: 64px 0 40px;
        }

        .footer-brand {
            display: inline-block;
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
            font-family: var(--font-heading);
        }

        .footer-brand:hover {
            color: #fff;
        }

        .footer-desc {
            color: rgba(232, 221, 210, 0.7);
            line-height: 1.8;
            margin-bottom: 16px;
            font-size: 14px;
        }

        .footer-heading {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            font-family: var(--font-heading);
            letter-spacing: 0.03em;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: rgba(232, 221, 210, 0.7);
            transition: color var(--transition), padding-left var(--transition);
        }

        .footer-links a:hover {
            color: var(--primary);
            padding-left: 4px;
        }

        .footer-contact p {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(232, 221, 210, 0.7);
            margin-bottom: 12px;
            font-size: 14px;
        }

        .footer-contact i {
            color: var(--primary);
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            text-align: center;
            color: rgba(232, 221, 210, 0.5);
            font-size: 13px;
        }

        .footer-bottom span {
            display: inline-block;
            line-height: 1.6;
        }

        /* 焦点可见 */
        a:focus-visible,
        button:focus-visible,
        .btn:focus-visible,
        .form-control:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            box-shadow: none;
        }

        /* 动效 */
        @media (prefers-reduced-motion: reduce) {
            * {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
        }

        /* 响应式 */
        @media (max-width: 991.98px) {
            .navbar-collapse {
                background: var(--cream);
                border-radius: 16px;
                padding: 20px;
                margin-top: 12px;
                box-shadow: var(--shadow-md);
            }

            .navbar-nav {
                display: flex;
                flex-direction: column;
                gap: 4px;
                width: 100%;
            }

            .nav-item .nav-link {
                padding: 12px 16px;
                font-size: 15px;
                border-radius: 10px;
            }

            .nav-actions {
                flex-direction: column;
                align-items: stretch;
                gap: 12px;
                margin-top: 12px;
                padding-top: 16px;
                border-top: 1px solid var(--border);
                width: 100%;
            }

            .nav-badge {
                justify-content: center;
                width: 100%;
            }

            .nav-actions .btn {
                width: 100%;
                text-align: center;
            }

            .article-hero {
                padding: 140px 0 50px;
            }

            .article-hero-title {
                font-size: 32px;
            }

            .article-content-wrap {
                padding: 0;
            }

            .article-content {
                padding: 32px 28px;
                font-size: 16px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
                padding: 48px 0 32px;
            }
        }

        @media (max-width: 767.98px) {
            .article-content {
                padding: 24px 20px;
                border-radius: 12px;
            }

            .article-hero-title {
                font-size: 26px;
            }

            .article-hero-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .section-title {
                font-size: 26px;
            }

            .section-title-row {
                align-items: flex-start;
                flex-direction: column;
                gap: 8px;
                margin-bottom: 24px;
            }

            .related-card {
                margin-bottom: 16px;
            }

            .cta-title {
                font-size: 28px;
            }

            .cta-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .cta-actions .btn {
                width: 100%;
                text-align: center;
            }
        }

        @media (max-width: 575.98px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .navbar-brand {
                font-size: 20px;
            }

            .article-main {
                padding: 48px 0 32px;
            }

            .related-section {
                padding: 48px 0 56px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #C8875B;
            --primary-dark: #B97A4B;
            --primary-light: #E8CDB8;
            --deep-brown: #3E2C23;
            --deep-charcoal: #2F2620;
            --cream: #F7F1EB;
            --cream-light: #FBF7F3;
            --beige: #EFE7DD;
            --text-main: #2B2320;
            --text-secondary: #7A6E64;
            --text-weak: #A5978B;
            --border-soft: #E8DED2;
            --success: #6E8B6E;
            --warning: #C2554A;
            --radius-card: 16px;
            --radius-img: 8px;
            --radius-btn: 999px;
            --radius-input: 12px;
            --shadow-base: 0 4px 20px rgba(60, 40, 20, 0.06);
            --shadow-hover: 0 12px 32px rgba(60, 40, 20, 0.12);
            --transition-base: 0.3s ease;
            --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Microsoft JhengHei", sans-serif;
            --font-display: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 80px;
        }

        body {
            font-family: var(--font-body);
            color: var(--text-main);
            background: var(--cream-light);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            --bs-body-font-family: var(--font-body);
            --bs-body-color: var(--text-main);
            --bs-primary: var(--primary);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: var(--primary-dark);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--primary);
        }

        .container {
            max-width: 1200px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: transparent;
            padding: 18px 0;
            transition: background-color 0.3s ease, box-shadow 0.3s ease, padding 0.3s ease;
        }
        .site-header.scrolled {
            background: rgba(251, 247, 243, 0.92);
            backdrop-filter: blur(12px);
            padding: 8px 0;
            box-shadow: 0 2px 12px rgba(60, 40, 20, 0.06);
            border-bottom: 1px solid var(--border-soft);
        }
        .site-header .navbar {
            padding: 0;
        }
        .navbar-brand {
            font-size: 24px;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--deep-brown);
            padding: 0;
            margin: 0;
            line-height: 1.2;
            display: flex;
            align-items: center;
        }
        .brand-accent {
            color: var(--primary);
            font-weight: 900;
        }
        .brand-text {
            color: var(--deep-brown);
            font-weight: 700;
        }
        .site-header.scrolled .navbar-brand {
            transform: scale(0.94);
            transform-origin: left center;
        }
        .navbar-nav {
            gap: 8px;
        }
        .nav-item .nav-link {
            color: var(--text-secondary);
            font-size: 16px;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 999px;
            transition: color 0.3s ease, background-color 0.3s ease;
            position: relative;
            letter-spacing: 0.02em;
        }
        .nav-item .nav-link:hover {
            color: var(--primary);
            background: rgba(200, 135, 91, 0.08);
        }
        .nav-item .nav-link.active {
            color: var(--primary);
            font-weight: 700;
            background: rgba(200, 135, 91, 0.12);
        }
        .navbar-toggler {
            border: none;
            color: var(--deep-brown);
            font-size: 20px;
            padding: 6px 10px;
            background: rgba(255, 255, 255, 0.5);
            border-radius: 8px;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(200, 135, 91, 0.3);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-left: 8px;
        }
        .nav-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--primary-dark);
            background: #fff;
            border: 1px solid var(--primary-light);
            padding: 4px 12px;
            border-radius: 999px;
            font-weight: 500;
            white-space: nowrap;
        }
        .nav-badge i {
            font-size: 8px;
            color: var(--success);
        }
        .btn {
            border-radius: var(--radius-btn);
            font-weight: 600;
            transition: all var(--transition-base);
            padding: 10px 24px;
            letter-spacing: 0.02em;
        }
        .btn-primary {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-base);
        }
        .btn-outline-light {
            border: 1px solid rgba(255, 255, 255, 0.7);
            color: #fff;
            background: transparent;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline-dark {
            border: 1px solid var(--primary);
            color: var(--primary-dark);
            background: transparent;
        }
        .btn-outline-dark:hover {
            background: rgba(200, 135, 91, 0.08);
            border-color: var(--primary);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-base);
        }

        /* ===== Hero Cover ===== */
        .category-hero {
            position: relative;
            min-height: 74vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 140px 0 100px;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            color: #fff;
            isolation: isolate;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(62, 44, 35, 0.82) 20%, rgba(47, 38, 32, 0.55) 60%, rgba(47, 38, 32, 0.35) 100%);
            z-index: -1;
        }
        .category-hero .hero-inner {
            max-width: 840px;
            padding: 0 20px;
        }
        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.35);
            color: #fff;
            font-size: 13px;
            font-weight: 500;
            padding: 6px 18px;
            border-radius: 999px;
            letter-spacing: 0.1em;
            margin-bottom: 32px;
            backdrop-filter: blur(8px);
        }
        .category-hero h1 {
            font-family: var(--font-display);
            font-size: 56px;
            font-weight: 900;
            color: #fff;
            letter-spacing: -0.02em;
            line-height: 1.15;
            margin-bottom: 20px;
        }
        .category-hero h1 span {
            color: var(--primary-light);
        }
        .category-hero .hero-desc {
            font-size: 18px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.92);
            margin-bottom: 36px;
            max-width: 680px;
            margin-left: auto;
            margin-right: auto;
        }
        .category-hero .hero-divider {
            width: 64px;
            height: 2px;
            background: var(--primary);
            margin: 0 auto 22px;
            border-radius: 2px;
        }
        .category-hero .hero-cta {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== Section Shared ===== */
        .section {
            padding: 90px 0;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-dark);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 14px;
        }
        .section-label::before {
            content: '';
            width: 28px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .section-title {
            font-family: var(--font-display);
            font-size: 34px;
            font-weight: 800;
            color: var(--deep-brown);
            letter-spacing: -0.01em;
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .section-subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.8;
        }

        /* ===== Alternating Content Blocks ===== */
        .alternate-section {
            padding: 72px 0;
            border-bottom: 1px solid var(--border-soft);
        }
        .alternate-section:last-child {
            border-bottom: none;
        }
        .alt-img-wrap {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            background: var(--beige);
            aspect-ratio: 4/3;
        }
        .alt-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }
        .alt-img-wrap:hover img {
            transform: scale(1.04);
        }
        .alt-img-wrap .img-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(47, 38, 32, 0.72);
            backdrop-filter: blur(6px);
            color: #fff;
            font-size: 13px;
            font-weight: 500;
            padding: 5px 14px;
            border-radius: 999px;
            letter-spacing: 0.04em;
        }
        .alt-content {
            padding: 32px 0;
        }
        .alt-content .alt-no {
            font-family: "Archivo", "DIN Alternate", sans-serif;
            font-size: 42px;
            font-weight: 800;
            color: transparent;
            -webkit-text-stroke: 1.5px var(--primary-light);
            line-height: 1;
            margin-bottom: 16px;
        }
        .alt-content h3 {
            font-size: 24px;
            font-weight: 800;
            color: var(--deep-brown);
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }
        .alt-content p {
            color: var(--text-secondary);
            font-size: 16px;
            margin-bottom: 22px;
        }
        .alt-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .alt-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 15px;
            color: var(--text-secondary);
            padding: 8px 0;
            border-bottom: 1px dashed var(--border-soft);
        }
        .alt-list li:last-child {
            border-bottom: none;
        }
        .alt-list li i {
            color: var(--primary);
            font-size: 14px;
            margin-top: 5px;
        }

        /* ===== Feature Cards ===== */
        .feature-section {
            background: var(--cream);
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 48px;
        }
        .feature-card {
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: rgba(200, 135, 91, 0.12);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
        }
        .feature-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--deep-brown);
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
        }

        /* ===== Steps ===== */
        .steps-section {
            background: var(--deep-charcoal);
            color: #fff;
        }
        .steps-section .section-title {
            color: #fff;
        }
        .steps-section .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }
        .steps-grid {
            margin-top: 56px;
        }
        .step-item {
            position: relative;
            padding: 24px;
            border-radius: var(--radius-card);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            height: 100%;
            transition: background-color 0.3s ease, transform 0.3s ease;
        }
        .step-item:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-4px);
        }
        .step-num {
            font-family: "Archivo", "DIN Alternate", sans-serif;
            font-size: 48px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 18px;
        }
        .step-item h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: #fff;
        }
        .step-item p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            margin: 0;
            line-height: 1.8;
        }
        .step-arrow {
            position: absolute;
            top: 50%;
            right: -16px;
            transform: translateY(-50%);
            color: var(--primary);
            font-size: 14px;
            z-index: 2;
            background: var(--deep-charcoal);
            border-radius: 50%;
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }

        /* ===== Stats Bar ===== */
        .stats-section {
            background: var(--deep-brown);
            padding: 64px 0;
        }
        .stat-item {
            text-align: center;
            padding: 20px;
        }
        .stat-num {
            font-family: "Archivo", "DIN Alternate", sans-serif;
            font-size: 48px;
            font-weight: 800;
            color: var(--primary-light);
            line-height: 1.1;
        }
        .stat-unit {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.6);
            margin-left: 2px;
        }
        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 8px;
            letter-spacing: 0.06em;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--cream-light);
        }
        .faq-wrap {
            max-width: 820px;
            margin: 48px auto 0;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            margin-bottom: 16px;
            overflow: hidden;
            transition: box-shadow 0.3s ease;
        }
        .faq-item:hover {
            box-shadow: var(--shadow-base);
        }
        .faq-item:focus-within {
            box-shadow: 0 0 0 3px rgba(200, 135, 91, 0.25);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            text-align: left;
            padding: 22px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-family: var(--font-body);
            font-size: 16px;
            font-weight: 600;
            color: var(--deep-brown);
            cursor: pointer;
            transition: background-color 0.2s ease;
        }
        .faq-question:hover {
            background: var(--cream);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            border: 1px solid var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 13px;
            transition: transform 0.3s ease, background-color 0.3s ease;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        .faq-answer-inner {
            padding: 0 24px 22px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            border-top: 1px solid var(--border-soft);
            margin: 0 0 0;
            padding-top: 16px;
        }

        /* ===== CTA Banner ===== */
        .cta-banner {
            background: linear-gradient(120deg, var(--primary-dark), var(--primary));
            border-radius: var(--radius-card);
            padding: 64px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-banner::after {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            top: -100px;
            right: -80px;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            bottom: -80px;
            left: -40px;
        }
        .cta-banner h2 {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-banner p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 30px;
        }
        .cta-banner .btn-white {
            background: #fff;
            color: var(--primary-dark);
            border: none;
            font-weight: 700;
            padding: 12px 32px;
            border-radius: 999px;
            transition: all 0.3s ease;
        }
        .cta-banner .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
        }
        .cta-banner .btn-outline-white {
            border: 1px solid rgba(255, 255, 255, 0.7);
            color: #fff;
            background: transparent;
            font-weight: 600;
            padding: 12px 32px;
            border-radius: 999px;
            transition: all 0.3s ease;
            margin-left: 12px;
        }
        .cta-banner .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: #fff;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--deep-charcoal);
            color: rgba(255, 255, 255, 0.7);
            margin-top: 90px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.4fr;
            gap: 40px;
            padding: 56px 0 42px;
        }
        .footer-brand {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.01em;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 14px;
            max-width: 280px;
        }
        .footer-heading {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            padding-bottom: 10px;
            position: relative;
        }
        .footer-heading::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 22px;
            height: 2px;
            background: var(--primary);
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: color 0.3s ease, padding-left 0.3s ease;
            display: inline-block;
        }
        .footer-links a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .footer-contact p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-contact p i {
            color: var(--primary);
            width: 18px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.4);
            text-align: center;
        }

        /* ===== Responsive ===== */
        @media (max-width: 991px) {
            .navbar-collapse {
                background: var(--cream-light);
                border-radius: 16px;
                margin-top: 12px;
                padding: 16px 20px;
                box-shadow: var(--shadow-hover);
            }
            .nav-actions {
                margin-top: 12px;
                margin-left: 0;
                flex-direction: column;
                align-items: stretch;
                gap: 10px;
            }
            .nav-actions .btn,
            .nav-actions .nav-badge {
                width: 100%;
                justify-content: center;
                text-align: center;
            }
            .category-hero h1 {
                font-size: 40px;
            }
            .stat-num {
                font-size: 36px;
            }
            .step-arrow {
                display: none;
            }
            .feature-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 767px) {
            .section {
                padding: 56px 0;
            }
            .category-hero {
                min-height: 60vh;
                padding: 110px 0 60px;
            }
            .category-hero h1 {
                font-size: 32px;
            }
            .category-hero .hero-desc {
                font-size: 16px;
            }
            .section-title {
                font-size: 26px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid .col-md-3 {
                margin-bottom: 20px;
            }
            .stats-section .col-6 {
                margin-bottom: 24px;
            }
            .cta-banner {
                padding: 40px 24px;
            }
            .cta-banner h2 {
                font-size: 22px;
            }
            .cta-banner .btn-white,
            .cta-banner .btn-outline-white {
                margin: 6px;
                padding: 10px 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                padding: 40px 0 24px;
            }
            .alt-content {
                padding: 16px 0 32px;
            }
        }

        @media (max-width: 576px) {
            .nav-badge {
                display: none;
            }
            .category-hero .hero-cta {
                flex-direction: column;
                width: 100%;
            }
            .category-hero .hero-cta .btn {
                width: 100%;
            }
            .alt-img-wrap {
                aspect-ratio: 4/3;
            }
            .stats-section .stat-item {
                padding: 12px;
            }
            .stat-num {
                font-size: 32px;
            }
            .stat-label {
                font-size: 12px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
        }

/* roulang page: category3 */
:root {
            --main: #C8875B;
            --main-dark: #B97A4B;
            --main-light: #F0DFD2;
            --deep: #3E2C23;
            --deep-2: #2F2620;
            --bg-soft: #F7F1EB;
            --bg-cream: #EFE7DD;
            --text-main: #2B2320;
            --text-sub: #7A6E64;
            --text-weak: #A5978B;
            --green: #6E8B6E;
            --border: #E8DED3;
            --radius-card: 16px;
            --radius-btn: 999px;
            --radius-img: 8px;
            --shadow: 0 4px 20px rgba(60,40,20,0.06);
            --shadow-hover: 0 12px 32px rgba(60,40,20,0.12);
            --transition: 0.3s ease;
            --container-max: 1200px;
            --bs-body-font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', sans-serif;
            --bs-body-color: var(--text-main);
            --bs-primary: var(--main);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--bs-body-font-family);
            color: var(--text-main);
            background: #fff;
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: var(--main-dark);
            text-decoration: none;
            transition: color 0.3s ease;
        }

        a:hover {
            color: var(--main);
        }

        .container {
            max-width: var(--container-max);
        }

        /* Header / Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: transparent;
            transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
            border-bottom: 1px solid transparent;
            padding: 14px 0;
        }

        .site-header.scrolled {
            background: rgba(255, 251, 247, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(200, 135, 91, 0.18);
            box-shadow: 0 4px 24px rgba(60, 40, 20, 0.05);
            padding: 8px 0;
        }

        .site-header .navbar {
            padding: 0;
        }

        .site-header .navbar-brand {
            display: inline-flex;
            align-items: baseline;
            font-size: 24px;
            font-weight: 900;
            letter-spacing: -0.01em;
            color: var(--text-main);
            padding: 0;
            margin: 0;
        }

        .brand-accent {
            color: var(--main);
            font-weight: 900;
        }

        .brand-text {
            color: var(--deep);
            font-weight: 700;
        }

        .site-header .navbar-nav {
            gap: 4px;
        }

        .site-header .nav-link {
            font-size: 15px;
            color: var(--text-main);
            font-weight: 500;
            letter-spacing: 0.04em;
            padding: 10px 18px !important;
            border-radius: 999px;
            transition: color 0.3s ease, background 0.3s ease;
            position: relative;
        }

        .site-header .nav-link::after {
            content: "";
            position: absolute;
            left: 18px;
            right: 18px;
            bottom: 4px;
            height: 2px;
            background: var(--main);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: left center;
            transition: transform 0.3s ease;
        }

        .site-header .nav-link:hover {
            color: var(--main-dark);
        }

        .site-header .nav-link:hover::after {
            transform: scaleX(1);
        }

        .site-header .nav-link.active {
            color: var(--main-dark);
            font-weight: 700;
            background: rgba(200, 135, 91, 0.08);
        }

        .site-header .nav-link.active::after {
            transform: scaleX(1);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-left: 8px;
        }

        .nav-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            color: var(--main-dark);
            background: #fff;
            border: 1px solid rgba(200, 135, 91, 0.35);
            border-radius: 999px;
            padding: 6px 14px;
            white-space: nowrap;
        }

        .nav-badge i {
            font-size: 8px;
            color: var(--green);
            animation: pulse-dot 2s ease infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(0.8); }
        }

        .site-header .btn-primary {
            background: var(--main);
            border-color: var(--main);
            border-radius: 999px;
            padding: 10px 24px;
            font-weight: 600;
            font-size: 14px;
            color: #fff;
            transition: all 0.3s ease;
            box-shadow: 0 4px 14px rgba(200, 135, 91, 0.25);
        }

        .site-header .btn-primary:hover {
            background: var(--main-dark);
            border-color: var(--main-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(200, 135, 91, 0.32);
        }

        .navbar-toggler {
            border: none;
            color: var(--deep);
            font-size: 22px;
            padding: 6px 10px;
            outline: none !important;
            box-shadow: none !important;
        }

        .navbar-toggler:focus {
            outline: none;
            box-shadow: none;
        }

        /* Page Hero */
        .page-hero {
            position: relative;
            padding: 180px 0 100px;
            text-align: center;
            background: linear-gradient(90deg, rgba(47, 38, 32, 0.78) 0%, rgba(47, 38, 32, 0.45) 60%, rgba(47, 38, 32, 0.25) 100%), url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            color: #fff;
        }

        .page-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: 999px;
            padding: 8px 20px;
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.06em;
            margin-bottom: 26px;
        }

        .page-hero .hero-badge i {
            color: var(--main);
            font-size: 10px;
        }

        .page-hero h1 {
            font-size: 56px;
            font-weight: 900;
            letter-spacing: -0.02em;
            line-height: 1.15;
            margin-bottom: 18px;
            color: #fff;
        }

        .page-hero h1 .text-accent {
            color: #E8B48C;
        }

        .page-hero .hero-sub {
            max-width: 680px;
            margin: 0 auto;
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
        }

        .page-hero .hero-sub::before {
            content: "";
            display: block;
            width: 56px;
            height: 2px;
            background: var(--main);
            margin: 0 auto 24px;
            border-radius: 2px;
        }

        /* Section base */
        .section {
            padding: 96px 0;
        }

        .section-head {
            margin-bottom: 56px;
        }

        .section-head .section-label {
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.14em;
            color: var(--main);
            text-transform: uppercase;
            margin-bottom: 10px;
            display: block;
        }

        .section-head h2 {
            font-size: 34px;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--deep);
            margin: 0 0 14px;
            line-height: 1.25;
        }

        .section-head p {
            max-width: 640px;
            color: var(--text-sub);
            font-size: 16px;
            margin: 0;
            line-height: 1.8;
        }

        /* Guarantee List */
        .guarantee-section {
            background: var(--bg-soft);
        }

        .guarantee-list {
            list-style: none;
            margin: 0;
            padding: 0;
            border-top: 1px solid var(--border);
        }

        .guarantee-list li {
            display: flex;
            gap: 40px;
            padding: 40px 0;
            border-bottom: 1px solid var(--border);
            transition: background 0.3s ease, padding-left 0.3s ease;
            align-items: flex-start;
        }

        .guarantee-list li:hover {
            background: rgba(255, 255, 255, 0.55);
            padding-left: 16px;
        }

        .guarantee-list .item-num {
            font-family: 'Archivo', 'Inter', sans-serif;
            font-size: 32px;
            font-weight: 700;
            color: var(--main);
            min-width: 84px;
            line-height: 1.2;
            letter-spacing: -0.02em;
            position: relative;
            padding-top: 4px;
        }

        .guarantee-list .item-num::after {
            content: "";
            display: block;
            width: 32px;
            height: 2px;
            background: var(--main-light);
            margin-top: 8px;
            border-radius: 2px;
        }

        .guarantee-list .item-body h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--deep);
            margin-bottom: 10px;
            line-height: 1.3;
        }

        .guarantee-list .item-body p {
            color: var(--text-sub);
            font-size: 16px;
            line-height: 1.8;
            margin: 0;
            max-width: 720px;
        }

        /* Metrics */
        .metrics-section {
            background: var(--deep-2);
            color: #fff;
            padding: 72px 0;
        }

        .metrics-section .section-head h2 {
            color: #fff;
        }

        .metrics-section .section-head p {
            color: rgba(255, 255, 255, 0.65);
        }

        .metrics-section .section-label {
            color: #E8B48C;
        }

        .metric-card {
            text-align: center;
            padding: 24px 16px;
            border-radius: var(--radius-card);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: transform 0.3s ease, background 0.3s ease;
        }

        .metric-card:hover {
            transform: translateY(-4px);
            background: rgba(255, 255, 255, 0.08);
        }

        .metric-card .metric-number {
            font-family: 'Archivo', 'Inter', sans-serif;
            font-size: 48px;
            font-weight: 700;
            color: #E8B48C;
            letter-spacing: -0.03em;
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .metric-card .metric-unit {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.5);
            display: block;
            line-height: 1.4;
        }

        .metric-card .metric-label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.78);
            margin-top: 12px;
            font-weight: 500;
        }

        /* Promise cards */
        .promise-section {
            background: #fff;
        }

        .promise-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .promise-card {
            background: var(--bg-soft);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .promise-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--main), transparent);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .promise-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .promise-card:hover::before {
            opacity: 1;
        }

        .promise-card .promise-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: var(--main-light);
            color: var(--main-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
        }

        .promise-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--deep);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .promise-card p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.75;
            margin: 0;
        }

        /* FAQ */
        .faq-section {
            background: var(--bg-soft);
        }

        .faq-grid {
            max-width: 860px;
            margin: 0 auto;
        }

        .accordion-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card) !important;
            margin-bottom: 16px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: box-shadow 0.3s ease;
        }

        .accordion-item:hover {
            box-shadow: var(--shadow-hover);
        }

        .accordion-button {
            font-size: 17px;
            font-weight: 600;
            color: var(--deep);
            padding: 20px 28px;
            background: #fff;
            box-shadow: none !important;
            outline: none !important;
            border: none;
            transition: color 0.3s ease, background 0.3s ease;
        }

        .accordion-button:not(.collapsed) {
            color: var(--main-dark);
            background: #fff;
        }

        .accordion-button::after {
            background-image: none;
            content: "\f067";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 16px;
            color: var(--main);
            width: 24px;
            height: 24px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: transform 0.3s ease;
        }

        .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
        }

        .accordion-body {
            padding: 4px 28px 24px;
            color: var(--text-sub);
            font-size: 16px;
            line-height: 1.85;
            border-top: 1px solid var(--border);
            background: #fff;
        }

        .accordion-body p {
            margin: 0;
            padding-top: 16px;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--deep) 0%, var(--deep-2) 100%);
            color: #fff;
            text-align: center;
            padding: 80px 0;
        }

        .cta-section h2 {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 17px;
            max-width: 560px;
            margin: 0 auto 36px;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-round {
            border-radius: var(--radius-btn);
            padding: 14px 36px;
            font-weight: 600;
            font-size: 15px;
            transition: all 0.3s ease;
        }

        .btn-round.btn-main {
            background: var(--main);
            border: 1px solid var(--main);
            color: #fff;
            box-shadow: 0 6px 20px rgba(200, 135, 91, 0.3);
        }

        .btn-round.btn-main:hover {
            background: var(--main-dark);
            border-color: var(--main-dark);
            transform: translateY(-3px);
            box-shadow: 0 10px 28px rgba(200, 135, 91, 0.38);
        }

        .btn-round.btn-outline-light {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.5);
            color: #fff;
        }

        .btn-round.btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            transform: translateY(-3px);
        }

        /* Footer */
        .site-footer {
            background: var(--deep-2);
            color: rgba(255, 255, 255, 0.78);
            padding-top: 64px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-brand {
            display: inline-block;
            font-size: 24px;
            font-weight: 900;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.8;
            margin-bottom: 0;
            max-width: 280px;
        }

        .footer-heading {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
        }

        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: color 0.3s ease, padding-left 0.3s ease;
        }

        .footer-links a:hover {
            color: #E8B48C;
            padding-left: 4px;
        }

        .footer-contact p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-contact i {
            color: var(--main);
            font-size: 15px;
            width: 18px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 22px 0;
            text-align: center;
        }

        .footer-bottom span {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* Scroll down cue */
        .scroll-cue {
            display: flex;
            justify-content: center;
            margin-top: 40px;
        }

        .scroll-cue span {
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            letter-spacing: 0.08em;
        }

        .scroll-cue i {
            animation: scroll-down 2s ease infinite;
            color: var(--main);
            font-size: 14px;
        }

        @keyframes scroll-down {
            0%, 100% { transform: translateY(0); opacity: 1; }
            50% { transform: translateY(8px); opacity: 0.4; }
        }

        /* Responsive */
        @media (max-width: 991px) {
            .site-header {
                background: rgba(255, 251, 247, 0.95);
                border-bottom: 1px solid rgba(200, 135, 91, 0.15);
                box-shadow: 0 4px 20px rgba(60, 40, 20, 0.05);
            }

            .site-header .navbar-collapse {
                background: #fff;
                border-radius: 16px;
                padding: 20px;
                margin-top: 12px;
                box-shadow: var(--shadow-hover);
            }

            .site-header .nav-link {
                padding: 12px 16px !important;
            }

            .site-header .nav-link::after {
                display: none;
            }

            .site-header .nav-actions {
                margin-left: 0;
                margin-top: 16px;
                flex-direction: column;
                align-items: stretch;
            }

            .nav-badge {
                justify-content: center;
            }

            .nav-actions .btn {
                padding: 12px 24px;
            }

            .page-hero {
                padding: 150px 0 80px;
            }

            .page-hero h1 {
                font-size: 40px;
            }

            .page-hero .hero-sub {
                font-size: 16px;
            }

            .promise-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }
        }

        @media (max-width: 767px) {
            .section {
                padding: 64px 0;
            }

            .section-head {
                margin-bottom: 40px;
            }

            .section-head h2 {
                font-size: 28px;
            }

            .page-hero {
                padding: 130px 0 60px;
            }

            .page-hero h1 {
                font-size: 34px;
            }

            .page-hero .hero-sub {
                font-size: 15px;
            }

            .guarantee-list li {
                gap: 20px;
                padding: 32px 0;
                flex-direction: row;
            }

            .guarantee-list .item-num {
                font-size: 26px;
                min-width: 60px;
            }

            .guarantee-list .item-body h3 {
                font-size: 19px;
            }

            .guarantee-list .item-body p {
                font-size: 15px;
            }

            .promise-grid {
                grid-template-columns: 1fr;
            }

            .metric-card .metric-number {
                font-size: 36px;
            }

            .cta-section h2 {
                font-size: 28px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .footer-desc {
                max-width: 100%;
            }

            .accordion-button {
                font-size: 15px;
                padding: 18px 20px;
            }

            .accordion-body {
                padding: 4px 20px 20px;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 30px;
            }

            .page-hero .hero-badge {
                font-size: 13px;
                padding: 6px 14px;
            }

            .guarantee-list li {
                flex-direction: column;
                gap: 12px;
                padding: 28px 0;
            }

            .guarantee-list li:hover {
                padding-left: 8px;
            }

            .guarantee-list .item-num {
                min-width: auto;
                font-size: 22px;
            }

            .metric-card {
                padding: 18px 12px;
            }

            .metric-card .metric-number {
                font-size: 32px;
            }

            .cta-buttons {
                flex-direction: column;
                align-items: center;
                gap: 12px;
            }

            .btn-round {
                width: 100%;
                max-width: 320px;
            }

            .accordion-button {
                font-size: 14px;
                padding: 16px 16px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #C8875B;
            --primary-dark: #B97A4B;
            --primary-light: rgba(200, 135, 91, 0.12);
            --deep: #3E2C23;
            --deep-2: #2F2620;
            --bg-warm: #F7F1EB;
            --bg-cream: #EFE7DD;
            --text-main: #2B2320;
            --text-sub: #7A6E64;
            --text-weak: #A5978B;
            --border-warm: #E5D9CE;
            --radius-card: 16px;
            --radius-img: 8px;
            --radius-btn: 999px;
            --shadow-soft: 0 4px 20px rgba(60, 40, 20, 0.06);
            --shadow-hover: 0 12px 32px rgba(60, 40, 20, 0.12);
            --success: #6E8B6E;
            --warning: #C2554A;
            --font-main: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", sans-serif;
            --font-num: "Archivo", "Inter", "Helvetica Neue", sans-serif;
            --bs-body-font-family: var(--font-main);
            --bs-body-color: var(--text-main);
            --bs-primary: var(--primary);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-main);
            color: var(--text-main);
            background: #fff;
            line-height: 1.8;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .3s ease;
        }

        a:hover {
            color: var(--primary-dark);
        }

        .container {
            max-width: 1200px;
        }

        :focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

        .section {
            padding: 90px 0;
        }

        .section-alt {
            background: var(--bg-warm);
        }

        .section-head {
            margin-bottom: 48px;
        }

        .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 16px;
            border-radius: 999px;
            letter-spacing: 0.04em;
        }

        .section-head h2 {
            font-size: 32px;
            font-weight: 800;
            margin: 16px 0 10px;
            letter-spacing: -0.01em;
            color: var(--deep);
        }

        .section-head p {
            color: var(--text-sub);
            font-size: 16px;
            max-width: 680px;
            margin: 0;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: transparent;
            transition: background .35s ease, box-shadow .35s ease, border-color .35s ease;
            border-bottom: 1px solid transparent;
        }

        .site-header .navbar {
            padding: 18px 0;
            transition: padding .35s ease;
        }

        .site-header.is-scrolled {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(229, 217, 206, 0.8);
            box-shadow: var(--shadow-soft);
        }

        .site-header.is-scrolled .navbar {
            padding: 10px 0;
        }

        .navbar-brand {
            font-size: 24px;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.2;
        }

        .brand-accent {
            color: var(--primary);
        }

        .brand-text {
            color: var(--deep);
        }

        .site-header:not(.is-scrolled) .brand-text {
            color: #fff;
        }

        .navbar-nav .nav-link {
            color: rgba(255, 255, 255, 0.92);
            font-size: 16px;
            font-weight: 500;
            margin: 0 8px;
            padding: 8px 6px;
            position: relative;
            letter-spacing: 0.05em;
            text-shadow: 0 1px 8px rgba(0, 0, 0, 0.25);
            transition: color .3s ease;
        }

        .site-header.is-scrolled .nav-link {
            color: var(--text-main);
            text-shadow: none;
        }

        .navbar-nav .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: width .3s ease;
        }

        .navbar-nav .nav-link:hover::after,
        .navbar-nav .nav-link.active::after {
            width: 100%;
        }

        .navbar-nav .nav-link.active {
            color: var(--primary) !important;
            font-weight: 700;
            text-shadow: none;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .nav-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary-dark);
            background: rgba(255, 255, 255, 0.88);
            border: 1px solid rgba(200, 135, 91, 0.35);
            padding: 5px 14px;
            border-radius: 999px;
            white-space: nowrap;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
        }

        .site-header:not(.is-scrolled) .nav-badge {
            background: rgba(62, 44, 35, 0.45);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.3);
            box-shadow: none;
        }

        .nav-badge i {
            font-size: 8px;
            color: var(--success);
        }

        .navbar-toggler {
            border: none;
            color: var(--text-main);
            font-size: 22px;
            padding: 4px 10px;
        }

        .site-header:not(.is-scrolled) .navbar-toggler {
            color: #fff;
        }

        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--primary);
            border-radius: 8px;
        }

        /* ===== Buttons ===== */
        .btn {
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 15px;
            border: 1px solid transparent;
            transition: all .3s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .btn-primary {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200, 135, 91, 0.35);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-outline {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.7);
            color: #fff;
        }

        .btn-outline:hover,
        .btn-outline:focus {
            background: rgba(255, 255, 255, 0.15);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-outline i {
            transition: transform .3s ease;
        }

        .btn-outline:hover i {
            transform: translateX(4px);
        }

        .btn-light {
            background: #fff;
            border-color: #fff;
            color: var(--deep);
        }

        .btn-light:hover,
        .btn-light:focus {
            background: var(--bg-warm);
            border-color: var(--bg-warm);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }

        /* ===== Page Hero ===== */
        .page-hero {
            background: linear-gradient(100deg, rgba(62, 44, 35, 0.9) 0%, rgba(62, 44, 35, 0.7) 50%, rgba(62, 44, 35, 0.4) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 190px 0 110px;
            color: #fff;
            position: relative;
        }

        .breadcrumb-nav {
            margin-bottom: 28px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }

        .breadcrumb-nav a {
            color: rgba(255, 255, 255, 0.9);
            transition: color .3s ease;
        }

        .breadcrumb-nav a:hover {
            color: var(--primary);
        }

        .breadcrumb-nav i {
            font-size: 12px;
            margin: 0 8px;
            color: rgba(255, 255, 255, 0.5);
        }

        .page-hero h1 {
            font-size: 52px;
            font-weight: 900;
            letter-spacing: -0.02em;
            line-height: 1.15;
            margin: 0 0 20px;
        }

        .page-hero h1 .accent {
            color: #E8A97B;
        }

        .page-hero .lead {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.9);
            max-width: 580px;
            margin-bottom: 36px;
            line-height: 1.9;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        /* ===== Stats ===== */
        .stats-bar {
            background: var(--deep);
            color: #fff;
            padding: 52px 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            text-align: center;
        }

        .stat-num {
            font-family: var(--font-num);
            font-size: 42px;
            font-weight: 800;
            color: #E8A97B;
            line-height: 1.2;
            display: block;
        }

        .stat-label {
            font-size: 16px;
            font-weight: 700;
            margin-top: 6px;
            letter-spacing: 0.02em;
        }

        .stat-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 4px;
        }

        /* ===== Info Shell ===== */
        .info-shell {
            display: flex;
            gap: 48px;
            align-items: flex-start;
        }

        .info-aside {
            width: 260px;
            flex-shrink: 0;
            position: sticky;
            top: 100px;
        }

        .subnav-card {
            background: var(--bg-warm);
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-card);
            padding: 28px 22px;
            box-shadow: var(--shadow-soft);
        }

        .subnav-card h4 {
            font-size: 16px;
            font-weight: 800;
            margin-bottom: 18px;
            color: var(--deep);
            letter-spacing: 0.02em;
        }

        .subnav-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .subnav-list li {
            margin-bottom: 6px;
        }

        .subnav-list a {
            display: block;
            padding: 10px 16px;
            border-radius: 10px;
            color: var(--text-main);
            font-weight: 500;
            font-size: 15px;
            transition: all .3s ease;
            border: 1px solid transparent;
        }

        .subnav-list a:hover,
        .subnav-list a.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .info-content {
            flex: 1;
            min-width: 0;
        }

        .content-block {
            margin-bottom: 56px;
            padding: 44px;
            background: #fff;
            border: 1px solid var(--border-warm);
            border-radius: 20px;
            box-shadow: var(--shadow-soft);
            transition: box-shadow .3s ease;
        }

        .content-block:last-child {
            margin-bottom: 0;
        }

        .block-head {
            margin-bottom: 28px;
        }

        .block-head h3 {
            font-size: 26px;
            font-weight: 800;
            color: var(--deep);
            letter-spacing: -0.01em;
            margin-bottom: 8px;
        }

        .block-head .block-sub {
            color: var(--text-sub);
            font-size: 15px;
            margin: 0;
        }

        /* ===== Overview ===== */
        .overview-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 44px;
            align-items: center;
        }

        .overview-text p {
            color: var(--text-sub);
            font-size: 15px;
            margin-bottom: 18px;
        }

        .overview-list {
            list-style: none;
            padding: 0;
            margin: 20px 0 0;
        }

        .overview-list li {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            margin-bottom: 12px;
            color: var(--text-main);
            font-size: 15px;
        }

        .overview-list i {
            color: var(--primary);
            margin-top: 6px;
            font-size: 14px;
        }

        .overview-media img {
            border-radius: 16px;
            aspect-ratio: 4/3;
            object-fit: cover;
            box-shadow: var(--shadow-hover);
            width: 100%;
        }

        /* ===== News List ===== */
        .news-list {
            border-top: 1px solid var(--border-warm);
        }

        .news-item {
            display: flex;
            gap: 24px;
            padding: 24px 0;
            border-bottom: 1px solid var(--border-warm);
            transition: background .25s ease;
            align-items: flex-start;
        }

        .news-meta {
            width: 92px;
            flex-shrink: 0;
        }

        .news-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary-dark);
            background: var(--primary-light);
            border-radius: 999px;
            padding: 3px 12px;
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }

        .news-date {
            font-family: var(--font-num);
            font-size: 13px;
            color: var(--text-weak);
            display: block;
        }

        .news-body h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--deep);
        }

        .news-body p {
            color: var(--text-sub);
            font-size: 14px;
            margin-bottom: 10px;
            line-height: 1.7;
        }

        .news-more {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .news-more i {
            transition: transform .3s ease;
        }

        .news-more:hover i {
            transform: translateX(4px);
        }

        /* ===== Industry Cards ===== */
        .industry-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .industry-card {
            padding: 28px 24px;
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-card);
            background: var(--bg-warm);
            transition: transform .3s ease, box-shadow .3s ease, background .3s ease;
        }

        .industry-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            background: #fff;
        }

        .industry-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 18px;
        }

        .industry-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--deep);
            margin-bottom: 8px;
        }

        .industry-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== Guide Steps ===== */
        .guide-steps {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .guide-step {
            display: flex;
            gap: 20px;
            padding: 22px 0;
            border-bottom: 1px solid var(--border-warm);
            align-items: flex-start;
        }

        .guide-step:last-child {
            border-bottom: none;
        }

        .step-num {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-family: var(--font-num);
            font-size: 16px;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(200, 135, 91, 0.3);
        }

        .guide-step h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--deep);
            margin-bottom: 6px;
        }

        .guide-step p {
            color: var(--text-sub);
            font-size: 15px;
            margin: 0;
            line-height: 1.7;
        }

        /* ===== FAQ Accordion ===== */
        .faq-accordion .accordion-item {
            border: 1px solid var(--border-warm);
            border-radius: 14px;
            margin-bottom: 14px;
            background: #fff;
            overflow: hidden;
            box-shadow: var(--shadow-soft);
            transition: box-shadow .3s ease;
        }

        .faq-accordion .accordion-item:hover {
            box-shadow: var(--shadow-hover);
        }

        .faq-accordion .accordion-button {
            background: #fff;
            color: var(--text-main);
            font-weight: 700;
            font-size: 16px;
            padding: 20px 24px;
            box-shadow: none;
            border-radius: 14px;
            letter-spacing: 0.01em;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--bg-warm);
            color: var(--primary-dark);
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            border-radius: 14px;
        }

        .faq-accordion .accordion-button::after {
            background-image: none;
            content: "+";
            font-family: var(--font-num);
            font-size: 24px;
            font-weight: 600;
            line-height: 1;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            transform: none;
            transition: transform .3s ease;
        }

        .faq-accordion .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
        }

        .faq-accordion .accordion-body {
            padding: 4px 24px 22px;
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.8;
        }

        .faq-accordion .accordion-body p {
            margin-bottom: 8px;
        }

        /* ===== Process ===== */
        .process-section {
            background: var(--bg-warm);
            padding: 90px 0;
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .process-item {
            text-align: center;
            background: #fff;
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-card);
            padding: 36px 22px;
            box-shadow: var(--shadow-soft);
            transition: transform .3s ease, box-shadow .3s ease;
        }

        .process-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .process-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary-dark);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 23px;
            margin-bottom: 18px;
        }

        .process-step-label {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--text-weak);
            letter-spacing: 0.06em;
            margin-bottom: 10px;
        }

        .process-item h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--deep);
            margin-bottom: 8px;
        }

        .process-item p {
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.7;
            margin: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--deep) 0%, var(--deep-2) 100%);
            padding: 90px 0;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: -60%;
            right: -20%;
            width: 440px;
            height: 440px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(200, 135, 91, 0.2) 0%, transparent 70%);
        }

        .cta-inner {
            max-width: 680px;
            margin: 0 auto;
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .cta-inner h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 16px;
            margin-bottom: 36px;
        }

        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 520px;
            margin: 0 auto;
        }

        .cta-form .form-control {
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.28);
            color: #fff;
            padding: 14px 22px;
            border-radius: var(--radius-btn);
            height: auto;
            font-size: 15px;
            transition: all .3s ease;
        }

        .cta-form .form-control::placeholder {
            color: rgba(255, 255, 255, 0.55);
        }

        .cta-form .form-control:focus {
            background: rgba(255, 255, 255, 0.16);
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(200, 135, 91, 0.3);
            color: #fff;
            outline: none;
        }

        .cta-form .btn {
            white-space: nowrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--deep-2);
            color: rgba(255, 255, 255, 0.75);
            padding-top: 72px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 52px;
        }

        .footer-brand {
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
        }

        .footer-brand:hover {
            color: #fff;
        }

        .footer-desc {
            margin-top: 14px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.8;
            max-width: 280px;
        }

        .footer-heading {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.02em;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: all .3s ease;
        }

        .footer-links a:hover {
            color: var(--primary);
            padding-left: 4px;
        }

        .footer-contact p {
            margin-bottom: 12px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-contact i {
            color: var(--primary);
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 22px 0;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1199px) {
            .page-hero h1 {
                font-size: 46px;
            }

            .content-block {
                padding: 36px;
            }
        }

        @media (max-width: 991px) {
            .section {
                padding: 64px 0;
            }

            .page-hero {
                padding: 150px 0 70px;
            }

            .info-shell {
                flex-direction: column;
            }

            .info-aside {
                width: 100%;
                position: static;
            }

            .subnav-card {
                padding: 18px 20px;
            }

            .subnav-list {
                display: flex;
                flex-wrap: wrap;
                gap: 8px;
            }

            .subnav-list li {
                margin-bottom: 0;
            }

            .subnav-list a {
                padding: 8px 16px;
                font-size: 14px;
            }

            .industry-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .stats-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 20px;
            }

            .stat-num {
                font-size: 32px;
            }

            .navbar-collapse {
                background: var(--bg-warm);
                border-radius: 16px;
                padding: 20px;
                margin-top: 14px;
                box-shadow: var(--shadow-hover);
                border: 1px solid var(--border-warm);
            }

            .navbar-nav .nav-link {
                color: var(--text-main) !important;
                text-shadow: none;
                padding: 12px 8px;
            }

            .nav-actions {
                margin-top: 16px;
                flex-wrap: wrap;
                padding-top: 14px;
                border-top: 1px solid var(--border-warm);
            }

            .nav-actions .btn {
                width: 100%;
            }
        }

        @media (max-width: 767px) {
            .section {
                padding: 48px 0;
            }

            .page-hero h1 {
                font-size: 34px;
            }

            .page-hero .lead {
                font-size: 16px;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .overview-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .industry-grid {
                grid-template-columns: 1fr;
            }

            .process-grid {
                grid-template-columns: 1fr;
            }

            .stats-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .content-block {
                padding: 24px 20px;
                border-radius: 16px;
            }

            .news-item {
                flex-direction: column;
                gap: 10px;
            }

            .news-meta {
                width: 100%;
                display: flex;
                align-items: center;
                gap: 10px;
            }

            .news-tag {
                margin-bottom: 0;
            }

            .cta-form {
                flex-direction: column;
            }

            .cta-form .btn {
                width: 100%;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .footer-bottom .container {
                justify-content: center;
                text-align: center;
            }

            .section-head h2 {
                font-size: 26px;
            }

            .cta-inner h2 {
                font-size: 26px;
            }

            .subnav-list a {
                flex: 1 1 auto;
                text-align: center;
            }
        }

        @media (max-width: 375px) {
            .page-hero {
                padding: 130px 0 56px;
            }

            .page-hero h1 {
                font-size: 30px;
            }

            .content-block {
                padding: 20px 16px;
            }

            .stats-bar {
                padding: 36px 0;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            html {
                scroll-behavior: auto;
            }

            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #C8875B;
            --primary-dark: #B97A4B;
            --primary-light: #E8CDB8;
            --dark: #3E2C23;
            --dark-2: #2F2620;
            --bg-cream: #F7F1EB;
            --bg-warm: #EFE7DD;
            --text-main: #2B2320;
            --text-secondary: #7A6E64;
            --text-light: #A5978B;
            --success: #6E8B6E;
            --warning: #C2554A;
            --border: #E5D9CD;
            --radius-card: 16px;
            --radius-btn: 999px;
            --radius-img: 8px;
            --radius-input: 12px;
            --shadow-light: 0 4px 20px rgba(60, 40, 20, 0.06);
            --shadow-hover: 0 12px 32px rgba(60, 40, 20, 0.12);
            --transition-base: all 0.3s ease;
            --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans CN", "Noto Sans CJK SC", sans-serif;
            --font-num: "Archivo", "Helvetica Neue", Arial, sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: #fff;
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body.modal-open {
            overflow: hidden;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition-base);
        }

        a:hover {
            color: var(--primary-dark);
        }

        img {
            max-width: 100%;
            height: auto;
        }

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* Bootstrap 重置 */
        .btn {
            font-family: var(--font-sans);
            font-weight: 600;
            letter-spacing: 0.03em;
        }

        .btn-primary {
            background-color: var(--primary);
            border-color: var(--primary);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            transition: var(--transition-base);
        }

        .btn-primary:hover {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        .btn-primary:active,
        .btn-primary:focus {
            background-color: var(--primary-dark) !important;
            border-color: var(--primary-dark) !important;
            color: #fff !important;
            box-shadow: 0 0 0 0.25rem rgba(200, 135, 91, 0.3);
            transform: translateY(0);
        }

        .btn-outline-primary {
            border-color: var(--primary);
            color: var(--primary);
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            background: transparent;
            transition: var(--transition-base);
        }

        .btn-outline-primary:hover {
            background-color: rgba(200, 135, 91, 0.08);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-light);
        }

        .btn-outline-primary:active,
        .btn-outline-primary:focus {
            background-color: rgba(200, 135, 91, 0.12) !important;
            color: var(--primary-dark) !important;
            border-color: var(--primary-dark) !important;
            box-shadow: 0 0 0 0.25rem rgba(200, 135, 91, 0.2);
        }

        .btn-sm {
            padding: 8px 20px;
            font-size: 14px;
        }

        .btn-lg {
            padding: 14px 36px;
            font-size: 16px;
        }

        .form-control {
            background-color: var(--bg-cream);
            border: 1px solid var(--border);
            border-radius: var(--radius-input);
            padding: 12px 18px;
            font-size: 15px;
            transition: var(--transition-base);
        }

        .form-control:focus {
            background-color: #fff;
            border-color: var(--primary);
            box-shadow: 0 0 0 0.25rem rgba(200, 135, 91, 0.15);
            outline: none;
        }

        /* ======== Header ======== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: transparent;
            transition: var(--transition-base);
            padding: 12px 0;
        }

        .site-header.scrolled {
            background: rgba(247, 241, 235, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(200, 135, 91, 0.15);
            box-shadow: var(--shadow-light);
        }

        .site-header.scrolled .navbar-brand .brand-text {
            color: var(--text-main);
        }

        .site-header.scrolled .nav-link {
            color: var(--text-main);
        }

        .navbar {
            padding: 0;
        }

        .navbar-brand {
            display: inline-flex;
            align-items: center;
            font-size: 24px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.01em;
            transition: var(--transition-base);
        }

        .navbar-brand .brand-accent {
            color: var(--primary);
            font-weight: 900;
        }

        .navbar-brand .brand-text {
            color: #fff;
            font-weight: 700;
            transition: var(--transition-base);
        }

        .site-header.scrolled .navbar-brand .brand-text {
            color: var(--text-main);
        }

        .navbar-toggler {
            border: 1px solid rgba(200, 135, 91, 0.3);
            background: rgba(247, 241, 235, 0.6);
            border-radius: 8px;
            padding: 8px 12px;
            color: var(--primary);
            font-size: 18px;
            box-shadow: none;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 0.25rem rgba(200, 135, 91, 0.25);
        }

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: #fff;
            letter-spacing: 0.05em;
            padding: 8px 16px;
            margin: 0 2px;
            border-radius: 999px;
            transition: var(--transition-base);
            position: relative;
        }

        .site-header.scrolled .nav-link {
            color: var(--text-main);
        }

        .nav-link:hover,
        .nav-link:focus {
            color: var(--primary) !important;
        }

        .nav-link.active {
            font-weight: 700;
            color: var(--primary) !important;
            background: rgba(200, 135, 91, 0.1);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .nav-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.85);
            color: var(--primary-dark);
            border: 1px solid rgba(200, 135, 91, 0.3);
            border-radius: 999px;
            padding: 5px 14px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .site-header.scrolled .nav-badge {
            background: #fff;
        }

        .nav-badge i {
            font-size: 8px;
            color: var(--success);
            vertical-align: middle;
        }

        /* ======== Hero ======== */
        .page-hero {
            padding: 160px 0 100px;
            background: linear-gradient(135deg, var(--dark) 0%, #4a3529 60%, rgba(74, 53, 41, 0.85) 100%);
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -80px;
            width: 380px;
            height: 380px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(200, 135, 91, 0.25) 0%, transparent 70%);
            pointer-events: none;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            bottom: -100px;
            left: 10%;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(200, 135, 91, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-title-area {
            position: relative;
            z-index: 2;
            max-width: 780px;
        }

        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(200, 135, 91, 0.15);
            border: 1px solid rgba(200, 135, 91, 0.3);
            color: #E8CDB8;
            border-radius: 999px;
            padding: 6px 18px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.06em;
            margin-bottom: 24px;
        }

        .hero-eyebrow i {
            font-size: 10px;
            color: var(--primary);
        }

        .page-hero h1 {
            font-size: 50px;
            font-weight: 900;
            color: #fff;
            line-height: 1.15;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
        }

        .page-hero h1 .highlight {
            color: var(--primary);
        }

        .page-hero .hero-lead {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.78);
            line-height: 1.9;
            margin-bottom: 32px;
            max-width: 640px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .hero-stats-bar {
            position: relative;
            z-index: 2;
            margin-top: 56px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-card);
            padding: 28px 36px;
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
        }

        .hero-stat {
            flex: 1;
            min-width: 140px;
        }

        .hero-stat .stat-num {
            font-family: var(--font-num);
            font-size: 34px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
        }

        .hero-stat .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 6px;
            letter-spacing: 0.04em;
        }

        .hero-stat-divider {
            width: 1px;
            background: rgba(255, 255, 255, 0.1);
        }

        /* ======== 分类帮助入口 ======== */
        .help-categories {
            padding: 100px 0;
            background: #fff;
        }

        .section-heading-wrap {
            margin-bottom: 48px;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(200, 135, 91, 0.08);
            border-radius: 999px;
            padding: 5px 14px;
            letter-spacing: 0.06em;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 34px;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: -0.01em;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 600px;
            line-height: 1.8;
        }

        .help-cat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .help-cat-card {
            background: var(--bg-cream);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px 26px;
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .help-cat-card::after {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            width: 80px;
            height: 80px;
            background: radial-gradient(circle, rgba(200, 135, 91, 0.12) 0%, transparent 70%);
            border-radius: 0 0 0 80px;
            transition: var(--transition-base);
            pointer-events: none;
        }

        .help-cat-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(200, 135, 91, 0.3);
        }

        .help-cat-card:hover::after {
            transform: scale(1.2);
        }

        .cat-icon {
            width: 56px;
            height: 56px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: #fff;
            border-radius: 14px;
            font-size: 22px;
            color: var(--primary);
            margin-bottom: 20px;
            box-shadow: var(--shadow-light);
        }

        .help-cat-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 8px;
        }

        .help-cat-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .help-cat-card .cat-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .help-cat-card .cat-link i {
            transition: var(--transition-base);
            font-size: 12px;
        }

        .help-cat-card:hover .cat-link i {
            transform: translateX(4px);
        }

        /* ======== 热门问题 ======== */
        .popular-questions {
            padding: 90px 0;
            background: var(--bg-cream);
            position: relative;
        }

        .popular-questions::before {
            content: "";
            position: absolute;
            top: 120px;
            right: 4%;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            border: 1px dashed rgba(200, 135, 91, 0.3);
            pointer-events: none;
        }

        .popular-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .popular-item {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 28px 30px;
            display: flex;
            align-items: flex-start;
            gap: 18px;
            transition: var(--transition-base);
        }

        .popular-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(200, 135, 91, 0.3);
            transform: translateY(-3px);
        }

        .popular-num {
            font-family: var(--font-num);
            font-size: 22px;
            font-weight: 700;
            color: var(--primary-light);
            line-height: 1;
            min-width: 32px;
            text-align: center;
            padding-top: 2px;
        }

        .popular-item h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .popular-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ======== FAQ 手风琴 ======== */
        .faq-section {
            padding: 100px 0;
            background: #fff;
        }

        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-cream);
            border: 1px solid var(--border);
            border-radius: 14px;
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-item:hover {
            border-color: rgba(200, 135, 91, 0.25);
        }

        .faq-item.active {
            border-color: rgba(200, 135, 91, 0.35);
            box-shadow: var(--shadow-light);
        }

        .faq-header {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 20px 24px;
            cursor: pointer;
            transition: var(--transition-base);
            user-select: none;
        }

        .faq-header:hover {
            background: rgba(200, 135, 91, 0.04);
        }

        .faq-q-icon {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: rgba(200, 135, 91, 0.12);
            color: var(--primary);
            font-size: 13px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .faq-header .faq-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--dark);
            flex: 1;
            line-height: 1.5;
        }

        .faq-toggle-icon {
            width: 30px;
            height: 30px;
            position: relative;
            flex-shrink: 0;
            transition: var(--transition-base);
        }

        .faq-toggle-icon::before,
        .faq-toggle-icon::after {
            content: "";
            position: absolute;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--transition-base);
        }

        .faq-toggle-icon::before {
            width: 14px;
            height: 2px;
            top: 14px;
            left: 8px;
        }

        .faq-toggle-icon::after {
            width: 2px;
            height: 14px;
            top: 8px;
            left: 14px;
        }

        .faq-item.active .faq-toggle-icon {
            transform: rotate(135deg);
        }

        .faq-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 24px;
        }

        .faq-body-inner {
            padding-bottom: 20px;
        }

        .faq-body-inner p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 10px;
        }

        .faq-body-inner p:last-child {
            margin-bottom: 0;
        }

        .faq-body-inner .tip-box {
            background: rgba(200, 135, 91, 0.06);
            border-left: 3px solid var(--primary);
            padding: 12px 16px;
            border-radius: 0 10px 10px 0;
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 10px;
        }

        /* ======== 搜索帮助 ======== */
        .search-help-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--dark) 0%, #4a3529 100%);
            position: relative;
            overflow: hidden;
        }

        .search-help-section::after {
            content: "";
            position: absolute;
            top: -120px;
            left: 60%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(200, 135, 91, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }

        .search-help-wrap {
            text-align: center;
            position: relative;
            z-index: 2;
            max-width: 680px;
            margin: 0 auto;
        }

        .search-help-wrap h2 {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.01em;
            margin-bottom: 12px;
        }

        .search-help-wrap p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 30px;
        }

        .search-box {
            display: flex;
            gap: 10px;
            background: #fff;
            border-radius: var(--radius-input);
            padding: 8px;
            box-shadow: var(--shadow-hover);
        }

        .search-box .form-control {
            border: none;
            background: transparent;
            padding: 10px 14px;
            font-size: 15px;
            box-shadow: none;
            flex: 1;
        }

        .search-box .form-control:focus {
            background: transparent;
            border: none;
            box-shadow: none;
        }

        .search-box .btn {
            white-space: nowrap;
        }

        /* ======== 联系方式板块 ======== */
        .contact-section {
            padding: 90px 0;
            background: var(--bg-cream);
        }

        .contact-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .contact-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 36px 30px;
            text-align: center;
            transition: var(--transition-base);
        }

        .contact-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .contact-card .contact-icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: rgba(200, 135, 91, 0.1);
            color: var(--primary);
            font-size: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
        }

        .contact-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 8px;
        }

        .contact-card p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.7;
        }

        .contact-card .contact-value {
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            margin-top: 6px;
            display: block;
        }

        /* ======== CTA ======== */
        .cta-section {
            padding: 90px 0 100px;
            background: #fff;
        }

        .cta-box {
            background: linear-gradient(135deg, var(--bg-cream) 0%, var(--bg-warm) 100%);
            border: 1px solid var(--border);
            border-radius: 24px;
            padding: 56px 60px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            border: 24px solid rgba(200, 135, 91, 0.08);
            pointer-events: none;
        }

        .cta-content h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 8px;
        }

        .cta-content p {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        .cta-actions {
            display: flex;
            gap: 14px;
            flex-shrink: 0;
        }

        /* ======== Footer ======== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.7);
            padding-top: 70px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 50px;
        }

        .footer-brand {
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            display: inline-block;
            margin-bottom: 16px;
        }

        .footer-brand:hover {
            color: var(--primary);
        }

        .footer-brand .brand-accent {
            color: var(--primary);
        }

        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.8;
            margin-bottom: 0;
            max-width: 260px;
        }

        .footer-heading {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.04em;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: var(--transition-base);
        }

        .footer-links a:hover {
            color: var(--primary);
            padding-left: 4px;
        }

        .footer-contact p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-contact i {
            color: var(--primary);
            width: 18px;
            text-align: center;
            font-size: 13px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 18px 0;
        }

        .footer-bottom .container {
            display: flex;
            justify-content: center;
            align-items: center;
            text-align: center;
        }

        .footer-bottom span {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.4);
            font-family: var(--font-num);
            letter-spacing: 0.03em;
        }

        /* ======== 响应式 ======== */
        @media (max-width: 1199.98px) {
            .help-cat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 991.98px) {
            .site-header {
                padding: 8px 0;
            }

            .page-hero {
                padding: 130px 0 80px;
            }

            .page-hero h1 {
                font-size: 40px;
            }

            .navbar-collapse {
                background: var(--bg-cream);
                border-radius: 16px;
                padding: 20px;
                margin-top: 12px;
                box-shadow: var(--shadow-hover);
                border: 1px solid var(--border);
            }

            .nav-link {
                color: var(--text-main);
                padding: 10px 16px;
            }

            .navbar-brand .brand-text {
                color: var(--text-main);
            }

            .nav-actions {
                flex-direction: column;
                align-items: stretch;
                gap: 10px;
                margin-top: 14px;
            }

            .nav-badge {
                justify-content: center;
            }

            .nav-actions .btn {
                width: 100%;
            }

            .help-cat-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .popular-grid {
                grid-template-columns: 1fr;
            }

            .contact-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .cta-box {
                flex-direction: column;
                padding: 40px 30px;
                text-align: center;
            }

            .cta-actions {
                justify-content: center;
                width: 100%;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .hero-stats-bar {
                flex-direction: column;
                gap: 20px;
                padding: 24px;
            }

            .hero-stat-divider {
                display: none;
            }
        }

        @media (max-width: 575.98px) {
            .page-hero {
                padding: 110px 0 60px;
            }

            .page-hero h1 {
                font-size: 30px;
            }

            .page-hero .hero-lead {
                font-size: 16px;
            }

            .hero-actions {
                flex-direction: column;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .section-title {
                font-size: 26px;
            }

            .help-cat-grid {
                grid-template-columns: 1fr;
            }

            .help-cat-card {
                padding: 24px 20px;
            }

            .faq-header {
                padding: 16px 18px;
            }

            .faq-body {
                padding: 0 18px;
            }

            .faq-title {
                font-size: 15px !important;
                line-height: 1.5 !important;
            }

            .popular-item {
                padding: 20px 18px;
            }

            .search-help-wrap h2 {
                font-size: 24px;
            }

            .search-box {
                flex-direction: column;
                background: transparent;
                padding: 0;
                box-shadow: none;
                border-radius: 0;
            }

            .search-box .form-control {
                border-radius: var(--radius-input) !important;
                padding: 12px 16px !important;
                margin-bottom: 10px;
                background: #fff !important;
                border: 1px solid var(--border) !important;
            }

            .search-box .form-control:focus {
                border-color: var(--primary) !important;
                box-shadow: 0 0 0 0.25rem rgba(200, 135, 91, 0.15) !important;
            }

            .search-box .btn {
                width: 100%;
            }

            .contact-grid {
                grid-template-columns: 1fr;
            }

            .cta-box {
                padding: 32px 20px;
            }

            .cta-actions {
                flex-direction: column;
            }

            .cta-actions .btn {
                width: 100%;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-bottom .container {
                flex-direction: column;
                gap: 4px;
            }

            .page-hero .hero-stats-bar {
                margin-top: 36px;
            }
        }

        /* ======== prefers-reduced-motion ======== */
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
        }