/* roulang page: index */
:root {
            --color-bg: #F8F6F3;
            --color-surface: #FFFFFF;
            --color-ink: #1E1C19;
            --color-muted: #6F6A63;
            --color-primary: #A65336;
            --color-secondary: #7A7F64;
            --color-accent: #B08D57;
            --color-border: #E7E1DB;
            --color-dark: #211E1B;
            --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
            --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            --shadow-xs: 0 1px 2px rgba(30, 28, 25, .04);
            --shadow-md: 0 8px 24px rgba(30, 28, 25, .06);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-pill: 24px;
            --space-section: 96px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-ink);
            background: var(--color-bg);
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius-md);
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color .25s ease;
        }

        a:hover {
            color: #8a4229;
        }

        button {
            border: none;
            background: none;
            cursor: pointer;
        }

        input,
        textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1280px;
            padding-left: 24px;
            padding-right: 24px;
        }

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

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

        .section-head h2 {
            font-family: var(--font-serif);
            font-size: clamp(1.75rem, 3vw, 2.5rem);
            font-weight: 700;
            line-height: 1.3;
            margin: 0 0 8px;
            color: var(--color-ink);
        }

        .section-head p {
            color: var(--color-muted);
            font-size: 16px;
            margin: 0;
        }

        .section-head .more-link {
            font-size: 14px;
            color: var(--color-primary);
            font-weight: 500;
        }

        .section-head .more-link:hover {
            text-decoration: underline;
            text-underline-offset: 4px;
        }

        .fade-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity .5s ease-out, transform .5s ease-out;
        }

        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== Header / Nav ===== */
        .site-header {
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border);
            box-shadow: 0 1px 0 rgba(30, 28, 25, .02);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .site-header .navbar {
            min-height: 72px;
            padding: 0;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0;
            margin: 0;
        }

        .brand-icon {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .brand-text {
            display: inline-flex;
            flex-direction: column;
            line-height: 1.18;
        }

        .brand-main {
            font-family: var(--font-serif);
            font-size: 18px;
            font-weight: 700;
            color: var(--color-ink);
            letter-spacing: .02em;
        }

        .brand-sub {
            font-size: 12px;
            font-weight: 600;
            color: var(--color-primary);
            letter-spacing: .06em;
        }

        .navbar-nav {
            gap: 4px;
            margin: 0 auto;
        }

        .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-ink);
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            transition: color .25s ease, background-color .25s ease;
            position: relative;
        }

        .navbar-nav .nav-link:hover {
            color: var(--color-primary);
            background: rgba(166, 83, 54, .05);
        }

        .navbar-nav .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
        }

        .navbar-nav .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
        }

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

        .search-form {
            display: flex;
            align-items: center;
            background: #F1EFEC;
            border-radius: var(--radius-pill);
            height: 40px;
            padding: 0 6px 0 16px;
            border: 1px solid transparent;
            transition: border-color .25s, background-color .25s, box-shadow .25s;
        }

        .search-form:focus-within {
            background: var(--color-surface);
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(166, 83, 54, .12);
        }

        .search-form input {
            border: none;
            background: transparent;
            outline: none;
            width: 130px;
            font-size: 14px;
            color: var(--color-ink);
        }

        .search-form input::placeholder {
            color: var(--color-muted);
        }

        .search-form button {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-muted);
            transition: background-color .25s, color .25s;
        }

        .search-form button:hover {
            background: var(--color-primary);
            color: #fff;
        }

        .btn {
            font-weight: 500;
            border-radius: var(--radius-sm);
            transition: all .3s ease;
            font-size: 15px;
        }

        .btn-lg {
            padding: 14px 32px;
            font-size: 16px;
            border-radius: var(--radius-sm);
        }

        .btn-primary {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #fff;
            box-shadow: none;
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background: #8a4229;
            border-color: #8a4229;
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(166, 83, 54, .22);
        }

        .btn-primary:active {
            background: #7a3a24;
            border-color: #7a3a24;
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(166, 83, 54, .18);
        }

        .btn-outline-dark {
            background: transparent;
            border: 1px solid var(--color-ink);
            color: var(--color-ink);
            border-radius: var(--radius-sm);
        }

        .btn-outline-dark:hover,
        .btn-outline-dark:focus {
            background: var(--color-ink);
            border-color: var(--color-ink);
            color: #fff;
            transform: translateY(-1px);
        }

        .btn-outline-dark:active {
            background: #0f0d0b;
            transform: translateY(0);
        }

        .btn-login {
            height: 40px;
            padding: 0 24px;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .navbar-toggler {
            border: none;
            padding: 6px 8px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 2px rgba(166, 83, 54, .3);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(30,28,25,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ===== Hero ===== */
        .hero {
            padding: 96px 0 80px;
            position: relative;
            background-image: linear-gradient(rgba(248, 246, 243, .93), rgba(248, 246, 243, .94)), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }

        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(30, 28, 25, .03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(30, 28, 25, .03) 1px, transparent 1px);
            background-size: 48px 48px;
            pointer-events: none;
        }

        .hero .container {
            position: relative;
            z-index: 1;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 1px solid var(--color-primary);
            border-radius: var(--radius-pill);
            padding: 6px 18px;
            font-size: 14px;
            color: var(--color-primary);
            font-weight: 500;
            background: rgba(255, 255, 255, .6);
            margin-bottom: 24px;
        }

        .hero-badge .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-primary);
            display: inline-block;
        }

        .hero-title {
            font-family: var(--font-serif);
            font-size: clamp(2.5rem, 5vw, 4rem);
            font-weight: 700;
            line-height: 1.15;
            letter-spacing: -0.02em;
            color: var(--color-ink);
            margin: 0 0 20px;
        }

        .hero-subtitle {
            font-size: 17px;
            color: var(--color-muted);
            line-height: 1.7;
            max-width: 480px;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 32px;
        }

        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            color: var(--color-muted);
        }

        .hero-trust i {
            color: var(--color-secondary);
            margin-right: 4px;
        }

        .hero-trust .dot-sep {
            width: 3px;
            height: 3px;
            border-radius: 50%;
            background: #c9c3bc;
            display: inline-block;
        }

        .hero-preview {
            display: flex;
            justify-content: flex-end;
            position: relative;
        }

        .login-card {
            width: 100%;
            max-width: 420px;
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 36px 32px;
            border: 1px solid var(--color-border);
            position: relative;
        }

        .login-card::before {
            content: "";
            position: absolute;
            top: -12px;
            right: 36px;
            width: 60px;
            height: 60px;
            border: 2px solid rgba(176, 141, 87, .3);
            border-radius: 50%;
            z-index: -1;
        }

        .login-card-head {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 28px;
        }

        .login-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(166, 83, 54, .1);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }

        .login-card-head span {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-ink);
        }

        .login-field {
            height: 48px;
            background: #F1EFEC;
            border-radius: var(--radius-sm);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            padding: 0 16px;
            font-size: 14px;
            color: var(--color-muted);
            border: 1px solid transparent;
        }

        .login-field i {
            margin-right: 10px;
            color: var(--color-accent);
            font-size: 14px;
        }

        .login-btn {
            height: 48px;
            background: var(--color-primary);
            color: #fff;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            font-weight: 600;
            margin-top: 20px;
            cursor: pointer;
            transition: background-color .25s, transform .25s;
        }

        .login-btn:hover {
            background: #8a4229;
            transform: translateY(-1px);
        }

        .login-meta {
            display: flex;
            justify-content: space-between;
            margin-top: 16px;
            font-size: 13px;
            color: var(--color-muted);
        }

        /* ===== Value Bar ===== */
        .value-section {
            padding: 48px 0;
            border-bottom: 1px solid var(--color-border);
            background: var(--color-surface);
        }

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

        .value-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 8px 4px;
        }

        .value-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(166, 83, 54, .08);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
        }

        .value-item h3 {
            font-size: 17px;
            font-weight: 600;
            margin: 0 0 4px;
            color: var(--color-ink);
        }

        .value-item p {
            font-size: 14px;
            color: var(--color-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* ===== Steps ===== */
        .steps-section {
            padding: var(--space-section) 0;
            background: var(--color-bg);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
            position: relative;
        }

        .steps-grid::before {
            content: "";
            position: absolute;
            top: 32px;
            left: 10%;
            right: 10%;
            border-top: 2px dashed var(--color-border);
            z-index: 0;
        }

        .step-item {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 0 16px;
        }

        .step-node {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--color-surface);
            border: 2px solid var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-family: var(--font-serif);
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
            box-shadow: var(--shadow-xs);
            transition: transform .3s ease, box-shadow .3s ease;
        }

        .step-item:hover .step-node {
            transform: scale(1.05);
            box-shadow: var(--shadow-md);
        }

        .step-icon {
            font-size: 22px;
            color: var(--color-secondary);
            margin-bottom: 14px;
            display: block;
        }

        .step-item h3 {
            font-size: 18px;
            font-weight: 600;
            margin: 0 0 8px;
            color: var(--color-ink);
        }

        .step-item p {
            font-size: 15px;
            color: var(--color-muted);
            margin: 0;
            line-height: 1.65;
        }

        /* ===== Case ===== */
        .case-section {
            padding: 0 0 var(--space-section);
            background: var(--color-bg);
        }

        .case-card {
            background: var(--color-dark);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            overflow: hidden;
            position: relative;
            background-image: linear-gradient(rgba(33, 30, 27, .9), rgba(33, 30, 27, .9)), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
        }

        .case-card::before {
            content: "\201C";
            position: absolute;
            top: 10px;
            left: 28px;
            font-family: var(--font-serif);
            font-size: 120px;
            color: rgba(255, 255, 255, .08);
            line-height: 1;
        }

        .case-quote {
            font-family: var(--font-serif);
            font-size: 22px;
            line-height: 1.6;
            color: #F5F2EE;
            margin: 0 0 20px;
            position: relative;
            z-index: 1;
        }

        .case-author {
            font-size: 14px;
            color: #CFC9C2;
            margin: 0 0 32px;
        }

        .case-stats {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
        }

        .case-stats .stat-num {
            font-family: var(--font-serif);
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            display: block;
            line-height: 1.2;
        }

        .case-stats p {
            font-size: 13px;
            color: #CFC9C2;
            margin: 4px 0 0;
        }

        .case-img-wrap {
            text-align: center;
        }

        .case-img-wrap img {
            width: 100%;
            max-width: 380px;
            border-radius: var(--radius-md);
            box-shadow: 0 16px 40px rgba(0, 0, 0, .35);
            aspect-ratio: 4 / 3;
            object-fit: cover;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: var(--space-section) 0;
            background: var(--color-surface);
            border-top: 1px solid var(--color-border);
        }

        .faq-left h2 {
            font-family: var(--font-serif);
            font-size: clamp(1.75rem, 3vw, 2.2rem);
            font-weight: 700;
            margin: 0 0 16px;
        }

        .faq-left p {
            color: var(--color-muted);
            font-size: 15px;
            margin-bottom: 24px;
        }

        .faq-list {
            border-top: 1px solid var(--color-border);
        }

        .faq-item {
            border-bottom: 1px solid var(--color-border);
        }

        .faq-item .faq-q {
            width: 100%;
            text-align: left;
            padding: 20px 16px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-ink);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            transition: color .25s;
            position: relative;
        }

        .faq-item .faq-q:hover {
            color: var(--color-primary);
        }

        .faq-item .faq-icon {
            font-size: 20px;
            color: var(--color-primary);
            font-weight: 400;
            flex-shrink: 0;
        }

        .faq-item .faq-a {
            padding: 0 16px 20px;
            font-size: 15px;
            color: var(--color-muted);
            line-height: 1.7;
            display: none;
        }

        .faq-item.open .faq-a {
            display: block;
        }

        .faq-item.open .faq-q {
            color: var(--color-primary);
        }

        /* ===== News ===== */
        .news-section {
            padding: var(--space-section) 0;
            background: #F1EFEC;
            border-top: 1px solid var(--color-border);
        }

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

        .news-grid-row {
            row-gap: 24px;
        }

        .news-featured {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border);
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: box-shadow .3s, transform .3s;
        }

        .news-featured:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .news-featured-cover {
            position: relative;
            overflow: hidden;
        }

        .news-featured-cover img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            border-radius: 0;
            aspect-ratio: 16 / 10;
        }

        .news-featured-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .news-cat {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--color-secondary);
            background: rgba(122, 127, 100, .12);
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            margin-bottom: 12px;
            align-self: flex-start;
        }

        .news-featured-title {
            font-family: var(--font-serif);
            font-size: 22px;
            font-weight: 600;
            line-height: 1.4;
            margin: 0 0 10px;
        }

        .news-featured-title a {
            color: var(--color-ink);
        }

        .news-featured-title a:hover {
            color: var(--color-primary);
        }

        .news-featured-excerpt {
            font-size: 15px;
            color: var(--color-muted);
            line-height: 1.65;
            margin-bottom: 20px;
            flex: 1;
        }

        .news-featured-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--color-muted);
            border-top: 1px solid var(--color-border);
            padding-top: 14px;
        }

        .news-featured-meta .read-more {
            font-weight: 500;
            color: var(--color-primary);
        }

        .news-featured-meta .read-more:hover {
            text-decoration: underline;
            text-underline-offset: 4px;
        }

        .news-side-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
            height: 100%;
        }

        .news-list-item {
            background: var(--color-surface);
            border-radius: var(--radius-md);
            padding: 20px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-xs);
            flex: 1;
            display: flex;
            flex-direction: column;
            transition: box-shadow .3s, transform .3s;
        }

        .news-list-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .news-list-title {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.45;
            margin: 6px 0 8px;
        }

        .news-list-title a {
            color: var(--color-ink);
        }

        .news-list-title a:hover {
            color: var(--color-primary);
        }

        .news-list-excerpt {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.55;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }

        .news-list-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--color-muted);
            border-top: 1px solid var(--color-border);
            padding-top: 12px;
        }

        .news-list-meta a {
            font-weight: 500;
            font-size: 13px;
        }

        .news-empty {
            border: 2px dashed var(--color-border);
            border-radius: var(--radius-lg);
            padding: 48px;
            text-align: center;
            color: var(--color-muted);
            background: var(--color-surface);
        }

        .news-empty i {
            font-size: 36px;
            color: #c9c3bc;
            margin-bottom: 12px;
            display: block;
        }

        .news-empty p {
            font-size: 15px;
            margin: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 96px 0;
            background-image: linear-gradient(rgba(33, 30, 27, .88), rgba(33, 30, 27, .88)), url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            text-align: center;
            position: relative;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 360px;
            height: 360px;
            border: 1px solid rgba(255, 255, 255, .06);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h2 {
            font-family: var(--font-serif);
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        .cta-section p {
            font-size: 16px;
            color: #CFC9C2;
            margin-bottom: 32px;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-section .btn-primary {
            padding: 16px 40px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-bg);
            border-top: 1px solid var(--color-border);
        }

        .footer-main {
            padding: 64px 0 48px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .footer-brand-text {
            font-family: var(--font-serif);
            font-size: 18px;
            font-weight: 700;
            color: var(--color-ink);
        }

        .footer-desc {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.7;
            margin-bottom: 0;
            max-width: 260px;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-ink);
            margin-bottom: 16px;
        }

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

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

        .footer-links a {
            font-size: 14px;
            color: var(--color-muted);
        }

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

        .footer-bottom {
            border-top: 1px solid var(--color-border);
            padding: 20px 0;
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--color-muted);
            margin: 0;
            text-align: center;
        }

        /* ===== Responsive ===== */
        @media (max-width: 991.98px) {
            :root {
                --space-section: 72px;
            }

            .navbar-collapse {
                background: var(--color-surface);
                padding: 16px 0 24px;
                border-top: 1px solid var(--color-border);
                margin-top: 8px;
            }

            .navbar-nav {
                margin-left: 0;
                margin-right: 0;
                gap: 2px;
                width: 100%;
                padding: 0 12px;
            }

            .navbar-nav .nav-link {
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }

            .navbar-nav .nav-link.active::after {
                left: 16px;
                right: auto;
                width: 24px;
            }

            .nav-actions {
                flex-direction: column;
                align-items: stretch;
                padding: 16px 12px 0;
                gap: 12px;
            }

            .search-form {
                width: 100%;
            }

            .search-form input {
                flex: 1;
                width: auto;
            }

            .btn-login {
                width: 100%;
            }

            .hero {
                padding: 72px 0 64px;
            }

            .hero-preview {
                margin-top: 48px;
                justify-content: center;
            }

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

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

            .steps-grid::before {
                display: none;
            }

            .step-item {
                text-align: left;
                display: flex;
                gap: 20px;
                align-items: flex-start;
                padding: 0;
            }

            .step-node {
                margin: 0;
                flex-shrink: 0;
            }

            .step-content {
                flex: 1;
            }

            .case-card {
                padding: 40px 28px;
            }

            .case-img-wrap {
                margin-top: 32px;
                text-align: left;
            }

            .faq-section .col-lg-4 {
                margin-bottom: 32px;
            }
        }

        @media (max-width: 767.98px) {
            :root {
                --space-section: 56px;
            }

            .value-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .value-item {
                padding: 4px 0;
            }

            .hero-title {
                font-size: 2.2rem;
            }

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

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

            .hero-trust .dot-sep {
                display: none;
            }

            .case-stats {
                gap: 20px;
            }

            .case-stats .stat-num {
                font-size: 24px;
            }

            .section-head {
                flex-direction: column;
                align-items: flex-start !important;
                gap: 12px;
                margin-bottom: 28px !important;
            }

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

            .footer-main .col-lg-4,
            .footer-main [class*="col-"] {
                margin-bottom: 32px;
            }
        }

        @media (max-width: 575.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .brand-main {
                font-size: 15px;
            }

            .brand-sub {
                font-size: 11px;
            }

            .site-header .navbar {
                min-height: 64px;
            }

            .news-featured-cover img {
                height: 160px;
            }

            .news-featured-body {
                padding: 18px;
            }

            .case-card {
                padding: 32px 20px;
            }

            .case-quote {
                font-size: 18px;
            }

            .cta-section {
                padding: 64px 0;
            }
        }

/* roulang page: article */
:root {
            --color-bg: #F8F6F3;
            --color-surface: #FFFFFF;
            --color-ink: #1E1C19;
            --color-muted: #6F6A63;
            --color-primary: #A65336;
            --color-primary-dark: #8E4527;
            --color-secondary: #7A7F64;
            --color-accent: #B08D57;
            --color-border: #E7E1DB;
            --color-dark: #211E1B;
            --color-dark-soft: #2E2A26;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-pill: 24px;
            --shadow-xs: 0 1px 2px rgba(30,28,25,.04);
            --shadow-md: 0 8px 24px rgba(30,28,25,.06);
            --font-serif: "Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
            --font-sans: "Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
            --transition: all .3s ease-out;
        }
        *, *::before, *::after { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            margin: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-ink);
            background: var(--color-bg);
            -webkit-font-smoothing: antialiased;
        }
        a { color: var(--color-primary); text-decoration: none; transition: color .2s; }
        a:hover { color: var(--color-primary-dark); }
        img { max-width: 100%; height: auto; }
        h1, h2, h3, h4, h5, h6 { font-family: var(--font-serif); font-weight: 700; line-height: 1.3; color: var(--color-ink); }
        p { margin: 0 0 1.2em; }
        .container { max-width: 1260px; padding-left: 24px; padding-right: 24px; }
        @media (min-width: 1400px) { .container { max-width: 1320px; } }

        /* ===== 按钮 ===== */
        .btn {
            height: 46px;
            padding: 0 28px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: 1px solid transparent;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }
        .btn-primary:hover { background: var(--color-primary-dark); border-color: var(--color-primary-dark); color: #fff; transform: translateY(-1px); }
        .btn-primary:active { background: #7d3d21; transform: translateY(0); }
        .btn-outline-dark {
            background: transparent;
            color: var(--color-ink);
            border-color: var(--color-ink);
        }
        .btn-outline-dark:hover { background: var(--color-ink); color: #fff; }
        .btn-outline-dark:active { background: #000; }
        .btn-block { width: 100%; }
        .btn:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; }

        /* ===== 顶部导航 ===== */
        .site-header {
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border);
            box-shadow: 0 1px 0 rgba(30,28,25,.02);
            position: sticky;
            top: 0;
            z-index: 1050;
        }
        .site-header .navbar { min-height: 72px; padding: 0; }
        .navbar-brand { display: flex; align-items: center; gap: 12px; padding: 8px 0; margin: 0; }
        .brand-icon { flex-shrink: 0; display: inline-flex; }
        .brand-text { display: flex; flex-direction: column; line-height: 1.2; }
        .brand-main { font-family: var(--font-serif); font-weight: 700; font-size: 18px; color: var(--color-ink); letter-spacing: .01em; }
        .brand-sub { font-family: var(--font-sans); font-weight: 600; font-size: 13px; color: var(--color-primary); letter-spacing: .04em; }
        .navbar-nav { align-items: center; gap: 4px; margin-left: 24px; }
        .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-ink);
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }
        .navbar-nav .nav-link:hover { color: var(--color-primary); background: rgba(166,83,54,.05); }
        .navbar-nav .nav-link.active { color: var(--color-primary); }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 2px;
            border-radius: 2px;
            background: var(--color-primary);
        }
        .nav-actions { display: flex; align-items: center; gap: 14px; margin-left: auto; }
        .search-form {
            display: flex;
            align-items: center;
            background: #F1EFEC;
            border-radius: var(--radius-pill);
            height: 40px;
            padding: 0 4px 0 16px;
            border: 1px solid transparent;
            transition: var(--transition);
            width: 220px;
        }
        .search-form:focus-within { background: #fff; border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(166,83,54,.08); }
        .search-form input {
            background: transparent;
            border: none;
            outline: none;
            font-size: 14px;
            color: var(--color-ink);
            flex: 1;
            min-width: 0;
        }
        .search-form input::placeholder { color: var(--color-muted); }
        .search-form button {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            border: none;
            background: var(--color-primary);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .search-form button:hover { background: var(--color-primary-dark); }
        .btn-login { height: 40px; padding: 0 24px; font-size: 14px; border-radius: var(--radius-pill); }
        .navbar-toggler { border: none; padding: 6px; box-shadow: none; }
        .navbar-toggler:focus { box-shadow: none; outline: 2px solid var(--color-primary); }
        .navbar-toggler-icon { background-image: none; position: relative; width: 24px; height: 2px; background: var(--color-ink); display: block; transition: var(--transition); }
        .navbar-toggler-icon::before, .navbar-toggler-icon::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--color-ink);
            border-radius: 2px;
        }
        .navbar-toggler-icon::before { top: -7px; }
        .navbar-toggler-icon::after { top: 7px; }

        /* ===== 面包屑 ===== */
        .breadcrumb-wrap {
            padding: 28px 0 0;
            background: var(--color-bg);
        }
        .breadcrumb-nav {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            font-size: 14px;
            color: var(--color-muted);
            gap: 6px;
        }
        .breadcrumb-nav a { color: var(--color-primary); font-weight: 500; }
        .breadcrumb-nav a:hover { color: var(--color-primary-dark); text-decoration: underline; text-underline-offset: 4px; }
        .breadcrumb-nav .sep { color: #C0B8B0; }
        .breadcrumb-nav .current { color: var(--color-ink); font-weight: 500; max-width: 320px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

        /* ===== 文章 Banner ===== */
        .article-banner {
            position: relative;
            background: var(--color-bg);
            padding: 56px 0 48px;
            overflow: hidden;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: .12;
            pointer-events: none;
        }
        .article-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(248,246,243,.85) 0%, rgba(248,246,243,.55) 100%);
            pointer-events: none;
        }
        .article-banner .container { position: relative; z-index: 2; }
        .article-banner h1 {
            font-size: clamp(1.85rem, 3.2vw, 2.7rem);
            font-weight: 700;
            color: var(--color-ink);
            margin: 18px 0 14px;
            line-height: 1.3;
            max-width: 880px;
            letter-spacing: -.01em;
        }
        .post-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            margin-top: 18px;
        }
        .post-meta .badge-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(30,28,25,.05);
            border-radius: 6px;
            padding: 5px 12px;
            font-size: 13px;
            color: var(--color-muted);
            font-weight: 500;
        }
        .post-meta .badge-item i { color: var(--color-primary); font-size: 12px; }
        .post-meta .badge-item.cat-badge { background: rgba(122,127,100,.14); color: var(--color-secondary); }

        /* ===== 正文区 ===== */
        .post-wrapper {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 48px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border);
            margin-bottom: 48px;
        }
        .post-content {
            font-family: var(--font-sans);
            font-size: 16.5px;
            line-height: 1.8;
            color: #2A2622;
            max-width: 780px;
            margin: 0 auto;
        }
        .post-content h2 {
            font-family: var(--font-serif);
            font-size: 1.65rem;
            font-weight: 600;
            margin: 36px 0 16px;
            color: var(--color-ink);
            padding-bottom: 10px;
            border-bottom: 1px solid var(--color-border);
        }
        .post-content h3 {
            font-family: var(--font-sans);
            font-size: 1.2rem;
            font-weight: 600;
            margin: 26px 0 12px;
            color: var(--color-ink);
        }
        .post-content p { margin-bottom: 1.5em; }
        .post-content img {
            width: 100%;
            border-radius: var(--radius-md);
            margin: 24px 0;
            box-shadow: var(--shadow-xs);
        }
        .post-content blockquote {
            border-left: 4px solid var(--color-primary);
            background: #F6F2EE;
            padding: 20px 24px;
            margin: 24px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--color-muted);
            font-size: 15.5px;
        }
        .post-content blockquote p { margin-bottom: 0; }
        .post-content ul, .post-content ol { margin: 0 0 1.5em 1.25em; }
        .post-content li { margin-bottom: .45em; }
        .post-content a { text-decoration: underline; text-underline-offset: 3px; }
        .post-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 15px;
        }
        .post-content th, .post-content td {
            border: 1px solid var(--color-border);
            padding: 10px 14px;
            text-align: left;
        }
        .post-content th { background: #F1EFEC; font-weight: 600; }

        /* ===== 标签 ===== */
        .post-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--color-border);
        }
        .post-tags .tag-badge {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-secondary);
            background: rgba(122,127,100,.1);
            border-radius: 6px;
            padding: 5px 14px;
            transition: var(--transition);
        }
        .post-tags .tag-badge:hover { background: var(--color-secondary); color: #fff; }

        /* ===== 上一篇 / 下一篇 ===== */
        .post-pager {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 28px;
        }
        .post-pager .btn { height: 42px; padding: 0 20px; font-size: 14px; border-radius: var(--radius-sm); }

        /* ===== 内容未找到 ===== */
        .post-not-found {
            text-align: center;
            padding: 48px 20px;
        }
        .post-not-found .not-found-icon {
            font-size: 48px;
            color: var(--color-primary);
            margin-bottom: 16px;
        }
        .post-not-found h2 { font-size: 1.5rem; margin-bottom: 12px; }
        .post-not-found p { color: var(--color-muted); margin-bottom: 24px; }

        /* ===== 相关推荐 ===== */
        .related-section {
            padding: 72px 0 80px;
            background: var(--color-bg);
        }
        .related-section .section-head {
            margin-bottom: 32px;
        }
        .related-section .section-head h2 {
            font-size: clamp(1.5rem, 2.4vw, 2rem);
            font-weight: 600;
            margin: 0;
            position: relative;
            display: inline-block;
        }
        .related-section .section-head h2::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -6px;
            width: 42px;
            height: 3px;
            border-radius: 3px;
            background: var(--color-primary);
        }
        .related-card {
            display: flex;
            background: var(--color-surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            overflow: hidden;
            height: 100%;
            box-shadow: var(--shadow-xs);
            transition: var(--transition);
        }
        .related-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
        .related-card .card-img { width: 42%; flex-shrink: 0; overflow: hidden; }
        .related-card .card-img img { width: 100%; height: 100%; object-fit: cover; min-height: 150px; transition: transform .4s ease-out; }
        .related-card:hover .card-img img { transform: scale(1.04); }
        .related-card .card-body { padding: 22px 24px; display: flex; flex-direction: column; justify-content: center; }
        .related-card .card-body h3 { font-family: var(--font-serif); font-size: 18px; font-weight: 600; margin: 0 0 8px; line-height: 1.4; color: var(--color-ink); }
        .related-card .card-body span { font-size: 14px; color: var(--color-muted); display: inline-flex; align-items: center; gap: 6px; }
        .related-card .card-body span i { color: var(--color-primary); font-size: 12px; }

        /* ===== CTA ===== */
        .article-cta {
            background: var(--color-dark);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .article-cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: .15;
            pointer-events: none;
        }
        .article-cta .container { position: relative; z-index: 2; text-align: center; }
        .article-cta h2 {
            font-family: var(--font-serif);
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            color: #F5F2EE;
            margin-bottom: 12px;
            font-weight: 600;
        }
        .article-cta p { color: #CFC9C2; font-size: 16px; margin-bottom: 28px; }
        .article-cta .btn-primary {
            height: 50px;
            padding: 0 40px;
            font-size: 16px;
            border-radius: var(--radius-pill);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--color-bg);
            border-top: 1px solid var(--color-border);
        }
        .footer-main { padding: 64px 0 48px; }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }
        .footer-brand-text {
            font-family: var(--font-serif);
            font-size: 18px;
            font-weight: 700;
            color: var(--color-ink);
        }
        .footer-desc { font-size: 14px; color: var(--color-muted); line-height: 1.7; max-width: 300px; }
        .footer-title {
            font-family: var(--font-sans);
            font-size: 15px;
            font-weight: 600;
            color: var(--color-ink);
            margin-bottom: 18px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li { margin-bottom: 10px; }
        .footer-links a {
            font-size: 14px;
            color: var(--color-muted);
            transition: var(--transition);
            display: inline-block;
        }
        .footer-links a:hover { color: var(--color-primary); transform: translateX(2px); }
        .footer-bottom {
            border-top: 1px solid var(--color-border);
            padding: 22px 0;
            text-align: center;
            font-size: 13px;
            color: var(--color-muted);
        }
        .footer-bottom p { margin: 0; display: inline; }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .site-header .navbar { min-height: 64px; }
            .navbar-collapse {
                background: var(--color-surface);
                border-top: 1px solid var(--color-border);
                padding: 16px 0 20px;
            }
            .navbar-nav { margin: 12px 0 16px; gap: 2px; }
            .navbar-nav .nav-link { padding: 10px 12px; }
            .navbar-nav .nav-link.active::after { display: none; }
            .nav-actions { width: 100%; flex-wrap: wrap; gap: 10px; padding: 0 8px; }
            .search-form { flex: 1; min-width: 200px; }
            .btn-login { flex-shrink: 0; }
            .post-wrapper { padding: 32px 24px; }
        }
        @media (max-width: 767.98px) {
            .article-banner { padding: 36px 0 32px; }
            .article-banner h1 { font-size: 1.6rem; }
            .post-meta { gap: 6px; }
            .post-meta .badge-item { font-size: 12px; padding: 4px 10px; }
            .related-card { flex-direction: column; }
            .related-card .card-img { width: 100%; }
            .related-card .card-img img { height: 150px; }
            .article-cta { padding: 60px 0; }
            .footer-main { padding: 48px 0 32px; }
            .footer-bottom p { display: block; }
        }
        @media (max-width: 575.98px) {
            .container { padding-left: 18px; padding-right: 18px; }
            .breadcrumb-nav { font-size: 13px; }
            .breadcrumb-nav .current { max-width: 180px; }
            .post-wrapper { padding: 24px 18px; border-radius: var(--radius-md); }
            .post-content { font-size: 16px; }
            .post-pager .btn { flex: 1; text-align: center; }
            .related-card .card-body { padding: 16px 18px; }
        }

/* roulang page: category1 */
:root {
  --color-bg: #F8F6F3;
  --color-surface: #FFFFFF;
  --color-ink: #1E1C19;
  --color-muted: #6F6A63;
  --color-primary: #A65336;
  --color-primary-dark: #8E452B;
  --color-secondary: #7A7F64;
  --color-accent: #B08D57;
  --color-border: #E7E1DB;
  --color-dark: #211E1B;
  --color-cream: #F5F2EE;
  --radius-xs: 6px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-pill: 24px;
  --shadow-xs: 0 1px 2px rgba(30,28,25,.04);
  --shadow-md: 0 8px 24px rgba(30,28,25,.06);
  --transition-base: .3s ease-out;
  --font-serif: "Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --font-sans: "Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-ink);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

.container { max-width: 1240px; }

.fade-up { opacity: 1; }
.fade-up-visible { animation: fadeUp .6s ease-out both; }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== 导航栏 ===== */
.site-header {
  background: var(--color-surface);
  box-shadow: 0 1px 0 var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1030;
}
.navbar { padding: 14px 0; min-height: 72px; }
.navbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-right: 32px;
  padding: 0;
}
.brand-icon { flex-shrink: 0; display: flex; }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-main { font-family: var(--font-serif); font-size: 18px; font-weight: 600; color: var(--color-ink); letter-spacing: .01em; }
.brand-sub { font-size: 13px; font-weight: 600; color: var(--color-primary); letter-spacing: .03em; }
.navbar-nav { gap: 4px; align-items: center; }
.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-ink);
  padding: 8px 16px !important;
  border-radius: var(--radius-sm);
  position: relative;
  transition: color var(--transition-base), background var(--transition-base);
}
.nav-link:hover { color: var(--color-primary); background: rgba(166,83,54,.06); }
.nav-link.active { color: var(--color-primary); font-weight: 600; }
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
}
.nav-actions { display: flex; align-items: center; gap: 14px; margin-left: 16px; }
.search-form {
  display: flex;
  align-items: center;
  background: #F1EFEC;
  border-radius: var(--radius-pill);
  padding: 0 6px 0 16px;
  height: 40px;
  width: 220px;
  border: 1px solid transparent;
  transition: all var(--transition-base);
}
.search-form:focus-within {
  background: var(--color-surface);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(166,83,54,.12);
}
.search-form input {
  border: none;
  background: transparent;
  outline: none;
  flex: 1;
  font-size: 14px;
  color: var(--color-ink);
  min-width: 0;
}
.search-form input::placeholder { color: var(--color-muted); }
.search-form button {
  border: none;
  background: none;
  color: var(--color-muted);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}
.search-form button:hover { color: var(--color-primary); background: rgba(166,83,54,.1); }
.btn-login {
  height: 40px;
  padding: 0 20px;
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
}
.navbar-toggler { border: none; padding: 8px; }
.navbar-toggler:focus { box-shadow: none; }
.navbar-toggler-icon {
  background-image: none;
  position: relative;
  width: 24px;
  height: 2px;
  background: var(--color-ink);
  display: inline-block;
  transition: all .3s ease;
}
.navbar-toggler-icon::before,
.navbar-toggler-icon::after {
  content: '';
  position: absolute;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--color-ink);
  transition: all .3s ease;
}
.navbar-toggler-icon::before { top: -8px; }
.navbar-toggler-icon::after { top: 8px; }
.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon { background: transparent; }
.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::before { transform: rotate(45deg); top: 0; }
.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::after { transform: rotate(-45deg); top: 0; }

/* ===== 按钮系统 ===== */
.btn {
  border-radius: var(--radius-sm);
  font-weight: 500;
  padding: 10px 24px;
  transition: all var(--transition-base);
  font-size: 15px;
}
.btn-primary {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: #fff;
  transform: translateY(-1px);
}
.btn-primary:active {
  background: #7E3B24;
  border-color: #7E3B24;
  transform: translateY(0);
  color: #fff;
}
.btn-primary:focus-visible,
.btn-outline-dark:focus-visible,
.btn-cta:focus-visible,
.btn-cta-outline:focus-visible,
.btn-hero:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(166,83,54,.15);
}
.btn-outline-dark {
  background: transparent;
  border: 1px solid var(--color-ink);
  color: var(--color-ink);
}
.btn-outline-dark:hover {
  background: var(--color-ink);
  color: #fff;
  border-color: var(--color-ink);
  transform: translateY(-1px);
}
.btn-outline-dark:active {
  background: #000;
  color: #fff;
  transform: translateY(0);
}

/* ===== Hero 区域 ===== */
.page-hero {
  background: var(--color-bg);
  position: relative;
  padding: 56px 0 88px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(30,28,25,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30,28,25,.04) 1px, transparent 1px),
    url('/assets/images/backpic/back-1.webp');
  background-size: 32px 32px, 32px 32px, cover;
  background-position: center;
  opacity: .55;
  z-index: 0;
}
.page-hero .container { position: relative; z-index: 1; }
.breadcrumb-nav {
  font-size: 13px;
  color: var(--color-muted);
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 0;
  flex-wrap: wrap;
}
.breadcrumb-nav a { color: var(--color-muted); transition: color var(--transition-base); }
.breadcrumb-nav a:hover { color: var(--color-primary); }
.breadcrumb-nav .separator { margin: 0 8px; color: var(--color-border); }
.breadcrumb-nav .current { color: var(--color-ink); font-weight: 500; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 500;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  background: rgba(166,83,54,.06);
  margin-bottom: 20px;
}
.hero-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
}
.page-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 4vw, 3rem);
  line-height: 1.2;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 18px;
  letter-spacing: -.01em;
}
.hero-sub {
  font-size: 17px;
  color: var(--color-muted);
  max-width: 560px;
  line-height: 1.8;
  margin-bottom: 28px;
}
.hero-actions {
  display: flex;
  gap: 14px;
  margin-bottom: 30px;
  flex-wrap: wrap;
}
.btn-hero {
  height: 48px;
  padding: 0 32px;
  font-size: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.hero-trust {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
}
.hero-trust span {
  font-size: 14px;
  color: var(--color-muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.hero-trust i { color: var(--color-secondary); }
.login-preview {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 24px;
  border: 1px solid var(--color-border);
  max-width: 420px;
  margin-left: auto;
  transition: box-shadow var(--transition-base);
}
.login-preview:hover { box-shadow: 0 12px 32px rgba(30,28,25,.1); }
.login-preview-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 20px;
}
.preview-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(176,141,87,.2);
}
.preview-title {
  font-size: 14px;
  color: var(--color-muted);
  font-weight: 500;
}
.preview-field { margin-bottom: 16px; }
.preview-field label {
  font-size: 13px;
  color: var(--color-muted);
  margin-bottom: 6px;
  display: block;
}
.preview-input {
  height: 42px;
  background: #F3F1EE;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: border-color var(--transition-base), background var(--transition-base);
}
.preview-field:nth-child(2) .preview-input { background: rgba(166,83,54,.05); }
.preview-btn {
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  opacity: .85;
  margin-top: 8px;
  position: relative;
  overflow: hidden;
}
.preview-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 30%, rgba(255,255,255,.2) 50%, transparent 70%);
  animation: shimmer 2.5s infinite;
}
@keyframes shimmer { 0% { transform: translateX(-100%); } 100% { transform: translateX(100%); } }
.preview-note {
  font-size: 12px;
  color: var(--color-muted);
  text-align: center;
  margin-top: 14px;
}

/* ===== 板块通用 ===== */
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 48px;
}
.section-head.left {
  text-align: left;
  margin: 0 0 32px;
}
.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--color-primary);
  background: rgba(166,83,54,.08);
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 14px;
  text-transform: uppercase;
}
.section-tag.light {
  color: #fff;
  background: rgba(255,255,255,.14);
}
.section-head h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--color-ink);
  line-height: 1.3;
  margin-bottom: 12px;
}
.section-head p {
  font-size: 16px;
  color: var(--color-muted);
  margin-bottom: 0;
}

/* ===== 入口方式卡片 ===== */
.entry-ways {
  padding: 88px 0;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}
.entry-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  height: 100%;
  transition: all var(--transition-base);
}
.entry-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.entry-card:active { transform: translateY(-2px); }
.entry-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: rgba(166,83,54,.1);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 20px;
  transition: background var(--transition-base), color var(--transition-base);
}
.entry-card:hover .entry-icon { background: var(--color-primary); color: #fff; }
.entry-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-ink);
}
.entry-card p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.75;
  margin-bottom: 14px;
}
.entry-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.entry-card ul li {
  font-size: 13px;
  color: var(--color-muted);
  padding: 4px 0;
  padding-left: 20px;
  position: relative;
}
.entry-card ul li::before {
  content: '';
  position: absolute;
  left: 2px;
  top: 13px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}

/* ===== 访问流程 ===== */
.access-steps {
  padding: 88px 0;
  background: var(--color-bg);
}
.steps-row { position: relative; }
.steps-row::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 12.5%;
  right: 12.5%;
  border-top: 1px dashed var(--color-border);
}
.step-item {
  text-align: center;
  padding: 0 12px;
  position: relative;
}
.step-num {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 700;
  color: var(--color-primary);
  display: block;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
  background: var(--color-bg);
  width: 56px;
  height: 56px;
  line-height: 56px;
  border-radius: 50%;
  margin-left: auto;
  margin-right: auto;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-xs);
  transition: all var(--transition-base);
}
.step-item:hover .step-num {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  transform: translateY(-2px);
}
.step-item h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-ink);
}
.step-item p {
  font-size: 14px;
  color: var(--color-muted);
  max-width: 220px;
  margin: 0 auto;
}

/* ===== 适用场景 ===== */
.use-scenes {
  padding: 88px 0;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}
.scene-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.scene-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 18px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: all var(--transition-base);
}
.scene-item:hover {
  background: var(--color-bg);
  border-color: var(--color-border);
  transform: translateX(4px);
}
.scene-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(122,127,100,.12);
  color: var(--color-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: all var(--transition-base);
}
.scene-item:hover .scene-icon { background: var(--color-secondary); color: #fff; }
.scene-item h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--color-ink);
}
.scene-item p {
  font-size: 14px;
  color: var(--color-muted);
  margin: 0;
}
.scene-image-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.scene-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
}
.scene-image-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(30,28,25,.35), transparent 40%);
}
.scene-image-note {
  position: absolute;
  left: 16px;
  bottom: 16px;
  background: rgba(30,28,25,.72);
  color: #fff;
  font-size: 13px;
  padding: 6px 14px;
  border-radius: 20px;
  backdrop-filter: blur(4px);
  z-index: 1;
}

/* ===== 安全大卡 ===== */
.security-banner {
  padding: 88px 0;
  background: var(--color-bg);
}
.security-card {
  background: var(--color-dark);
  border-radius: var(--radius-lg);
  padding: 48px;
  position: relative;
  overflow: hidden;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
}
.security-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(33,30,27,.96) 40%, rgba(33,30,27,.78));
}
.security-card > .row { position: relative; z-index: 1; }
.security-card h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 2.5vw, 2.2rem);
  color: #fff;
  margin: 12px 0 12px;
  line-height: 1.3;
}
.security-desc {
  color: #CFC9C2;
  font-size: 15px;
  max-width: 480px;
  margin-bottom: 0;
}
.security-check {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.security-check li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--color-cream);
  font-size: 15px;
  line-height: 1.6;
}
.security-check li i {
  color: var(--color-accent);
  margin-top: 5px;
  flex-shrink: 0;
}

/* ===== FAQ ===== */
.faq-section {
  padding: 88px 0;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}
.faq-side { position: sticky; top: 100px; }
.faq-side h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3vw, 2.2rem);
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-ink);
}
.faq-side p {
  color: var(--color-muted);
  font-size: 15px;
  margin-bottom: 24px;
}
.faq-side .btn { margin-right: 8px; margin-bottom: 8px; }
.accordion {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 8px 24px;
  overflow: hidden;
}
.accordion-item {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--color-border) !important;
}
.accordion-item:last-child { border-bottom: none !important; }
.accordion-button {
  background: transparent !important;
  box-shadow: none !important;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-ink);
  padding: 18px 0;
  font-family: var(--font-sans);
}
.accordion-button:not(.collapsed) { color: var(--color-primary); }
.accordion-button:hover { color: var(--color-primary); }
.accordion-button:focus { box-shadow: none !important; }
.accordion-button::after {
  background-image: none;
  content: '+';
  font-family: var(--font-sans);
  font-size: 22px;
  font-weight: 300;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  transition: transform var(--transition-base);
}
.accordion-button:not(.collapsed)::after { content: '−'; }
.accordion-body {
  padding: 0 0 20px;
  color: var(--color-muted);
  font-size: 15px;
  line-height: 1.75;
}

/* ===== CTA ===== */
.cta-section {
  padding: 88px 0;
  background: var(--color-dark);
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  opacity: .18;
}
.cta-section::after {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 240px;
  height: 240px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 50%;
}
.cta-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}
.cta-inner h2 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 3vw, 2.6rem);
  color: #fff;
  margin-bottom: 12px;
  line-height: 1.3;
}
.cta-inner p {
  color: #CFC9C2;
  font-size: 16px;
  margin-bottom: 28px;
}
.cta-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn-cta {
  background: var(--color-primary);
  color: #fff;
  border: none;
  height: 48px;
  padding: 0 36px;
  font-size: 16px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  transition: all var(--transition-base);
}
.btn-cta:hover {
  background: var(--color-primary-dark);
  color: #fff;
  transform: translateY(-1px);
}
.btn-cta:active { transform: translateY(0); background: #7E3B24; }
.btn-cta-outline {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,.5);
  height: 48px;
  padding: 0 36px;
  font-size: 16px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  transition: all var(--transition-base);
}
.btn-cta-outline:hover {
  background: rgba(255,255,255,.1);
  color: #fff;
  border-color: #fff;
  transform: translateY(-1px);
}
.btn-cta-outline:active { transform: translateY(0); }

/* ===== 页脚 ===== */
.site-footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
}
.footer-main { padding: 64px 0 40px; }
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.footer-brand-text {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-ink);
}
.footer-desc {
  font-size: 14px;
  color: var(--color-muted);
  margin: 0;
  max-width: 320px;
  line-height: 1.75;
}
.footer-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 16px;
}
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-links li { margin-bottom: 10px; }
.footer-links a {
  font-size: 14px;
  color: var(--color-muted);
  transition: color var(--transition-base);
}
.footer-links a:hover { color: var(--color-primary); }
.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: 20px 0;
}
.footer-bottom p {
  font-size: 13px;
  color: var(--color-muted);
  margin: 0;
  text-align: center;
}

/* ===== 响应式 ===== */
@media (max-width: 991px) {
  .navbar-collapse {
    background: var(--color-surface);
    padding: 16px 20px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    margin-top: 12px;
    border: 1px solid var(--color-border);
  }
  .navbar-nav { align-items: flex-start; gap: 2px; }
  .nav-link { width: 100%; border-radius: var(--radius-sm); }
  .nav-link.active::after { left: 16px; right: 16px; bottom: 4px; }
  .nav-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    padding-top: 14px;
    border-top: 1px solid var(--color-border);
    margin-top: 8px;
    margin-left: 0;
  }
  .search-form { width: 100%; }
  .btn-login { justify-content: center; width: 100%; }
  .page-hero { padding: 40px 0 64px; }
  .login-preview { margin: 0 auto; }
  .steps-row::before { display: none; }
  .step-item { margin-bottom: 32px; }
  .step-item:last-child { margin-bottom: 0; }
  .faq-side { position: static; margin-bottom: 32px; }
  .security-card { padding: 32px; }
  .security-card > .row > .col-lg-6:first-child { margin-bottom: 24px; }
}

@media (max-width: 767px) {
  .navbar { min-height: 64px; padding: 10px 0; }
  .brand-main { font-size: 16px; }
  .brand-sub { font-size: 12px; }
  .page-hero h1 { font-size: 2rem; }
  .hero-actions .btn { width: 100%; }
  .hero-trust { gap: 12px; }
  .hero-trust span { font-size: 13px; }
  .entry-ways, .access-steps, .use-scenes, .security-banner, .faq-section, .cta-section { padding: 56px 0; }
  .footer-main { padding: 48px 0 24px; }
  .security-card { padding: 24px; }
  .security-check { gap: 12px; }
  .accordion { padding: 4px 16px; }
  .cta-section::after { display: none; }
  .cta-actions .btn-cta, .cta-actions .btn-cta-outline { width: 100%; justify-content: center; }
}

@media (max-width: 576px) {
  .brand-icon svg { width: 32px; height: 32px; }
  .brand-main { font-size: 15px; }
  .brand-sub { font-size: 11px; }
  .page-hero h1 { font-size: 1.75rem; }
  .hero-sub { font-size: 15px; }
  .section-head h2 { font-size: 1.5rem; }
  .entry-card { padding: 24px 20px; }
  .scene-item { padding: 14px; }
  .footer-bottom p { font-size: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* roulang page: category2 */
:root {
            --color-bg: #F8F6F3;
            --color-surface: #FFFFFF;
            --color-ink: #1E1C19;
            --color-muted: #6F6A63;
            --color-primary: #A65336;
            --color-secondary: #7A7F64;
            --color-accent: #B08D57;
            --color-border: #E7E1DB;
            --color-dark: #211E1B;
            --shadow-xs: 0 1px 2px rgba(30, 28, 25, .04);
            --shadow-md: 0 8px 24px rgba(30, 28, 25, .06);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-pill: 24px;
            --transition-base: all .3s ease-out;
        }

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

        body {
            margin: 0;
            background: var(--color-bg);
            color: var(--color-ink);
            font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
            font-weight: 600;
            color: var(--color-ink);
            margin: 0 0 .5em;
            line-height: 1.3;
        }

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

        a:hover {
            color: #8A4227;
            text-decoration: none;
        }

        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius-md);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        .container {
            max-width: 1320px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section {
            padding: 96px 0;
            position: relative;
        }

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

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
            letter-spacing: .08em;
            text-transform: uppercase;
            background: rgba(166, 83, 54, .08);
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            margin-bottom: 16px;
        }

        .section-label i {
            font-size: 12px;
        }

        .section-title {
            font-size: clamp(1.75rem, 3vw, 2.5rem);
            margin-bottom: 12px;
            letter-spacing: -.01em;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--color-muted);
            max-width: 720px;
            margin: 0;
        }

        .text-primary-custom {
            color: var(--color-primary) !important;
        }

        /* ===== Header & Nav ===== */
        .site-header {
            background: var(--color-surface);
            box-shadow: 0 1px 0 var(--color-border);
            position: sticky;
            top: 0;
            z-index: 1030;
        }

        .navbar {
            min-height: 72px;
            padding: 0;
            background: var(--color-surface);
        }

        .navbar-toggler {
            border: none;
            padding: 6px 10px;
            order: 3;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 2px rgba(166, 83, 54, .35);
        }

        .navbar-toggler-icon {
            background-image: none;
            position: relative;
            width: 24px;
            height: 18px;
            display: inline-block;
        }

        .navbar-toggler-icon::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 24px;
            height: 2px;
            background: var(--color-ink);
            border-radius: 2px;
            box-shadow: 0 7px 0 var(--color-ink), 0 14px 0 var(--color-ink);
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 0;
            margin: 0;
            order: 0;
        }

        .navbar-brand:hover,
        .navbar-brand:focus {
            color: var(--color-ink);
        }

        .brand-icon {
            display: inline-flex;
            flex-shrink: 0;
        }

        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            white-space: nowrap;
        }

        .brand-main {
            font-family: "Noto Serif SC", serif;
            font-size: 20px;
            font-weight: 700;
            color: var(--color-ink);
        }

        .brand-sub {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-primary);
            letter-spacing: .02em;
        }

        .navbar-collapse {
            justify-content: flex-end;
        }

        .navbar-nav {
            align-items: center;
            gap: 4px;
            margin-right: 24px;
        }

        .nav-item {
            list-style: none;
        }

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-ink);
            padding: 8px 14px !important;
            border-radius: var(--radius-sm);
            position: relative;
            transition: var(--transition-base);
        }

        .nav-link::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: left;
            transition: transform .3s ease-out;
        }

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

        .nav-link:hover::after,
        .nav-link.active::after {
            transform: scaleX(1);
        }

        .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
        }

        .nav-link:focus-visible {
            box-shadow: 0 0 0 2px rgba(166, 83, 54, .35);
            outline: none;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            order: 2;
        }

        .search-form {
            display: flex;
            align-items: center;
            background: #F1EFEC;
            border-radius: var(--radius-pill);
            height: 40px;
            padding: 0 6px 0 16px;
            transition: var(--transition-base);
            border: 1px solid transparent;
        }

        .search-form:focus-within {
            background: var(--color-surface);
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(166, 83, 54, .12);
        }

        .search-form input {
            border: none;
            background: transparent;
            outline: none;
            width: 160px;
            font-size: 14px;
            color: var(--color-ink);
        }

        .search-form input::placeholder {
            color: var(--color-muted);
        }

        .search-form button {
            border: none;
            background: transparent;
            color: var(--color-muted);
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition-base);
        }

        .search-form button:hover {
            color: var(--color-primary);
            background: rgba(166, 83, 54, .08);
        }

        .search-form button:focus-visible {
            outline: none;
            box-shadow: 0 0 0 2px rgba(166, 83, 54, .4);
        }

        .btn {
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 15px;
            padding: 10px 24px;
            transition: var(--transition-base);
            border: 1px solid transparent;
        }

        .btn:focus-visible {
            outline: none;
            box-shadow: 0 0 0 3px rgba(166, 83, 54, .3);
        }

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

        .btn-primary:hover,
        .btn-primary:active {
            background: #8F452B;
            border-color: #8F452B;
            color: #fff;
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(0);
            filter: brightness(.96);
        }

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

        .btn-dark:hover,
        .btn-dark:active {
            background: #000;
            border-color: #000;
            color: #fff;
            transform: translateY(-1px);
        }

        .btn-outline {
            background: transparent;
            border-color: var(--color-ink);
            color: var(--color-ink);
        }

        .btn-outline:hover,
        .btn-outline:active {
            background: var(--color-ink);
            border-color: var(--color-ink);
            color: #fff;
            transform: translateY(-1px);
        }

        .btn-login {
            height: 40px;
            padding: 0 24px;
            display: inline-flex;
            align-items: center;
        }

        /* ===== Page Hero ===== */
        .page-hero {
            background-color: var(--color-bg);
            background-image: linear-gradient(rgba(248, 246, 243, .92), rgba(248, 246, 243, .92)), url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid var(--color-border);
            padding: 88px 0 72px;
            position: relative;
            overflow: hidden;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(30, 28, 25, .06) 1px, transparent 1px),
                linear-gradient(90deg, rgba(30, 28, 25, .06) 1px, transparent 1px);
            background-size: 48px 48px;
            pointer-events: none;
        }

        .page-hero .container {
            position: relative;
            z-index: 1;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 1px solid var(--color-primary);
            color: var(--color-primary);
            font-size: 14px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            background: rgba(255, 255, 255, .6);
            margin-bottom: 20px;
        }

        .hero-badge .dot {
            width: 6px;
            height: 6px;
            background: var(--color-primary);
            border-radius: 50%;
            display: inline-block;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: .6;
                transform: scale(.8);
            }
        }

        .page-hero h1 {
            font-size: clamp(2.25rem, 4.2vw, 3.2rem);
            margin-bottom: 16px;
            letter-spacing: -.02em;
        }

        .page-hero .lead {
            font-size: 17px;
            color: var(--color-muted);
            max-width: 720px;
            margin-bottom: 32px;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 24px;
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--color-border);
            font-size: 14px;
            color: var(--color-muted);
        }

        .hero-trust span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .hero-trust i {
            color: var(--color-secondary);
            font-size: 14px;
        }

        /* ===== Issue Types ===== */
        .issue-section {
            background: var(--color-surface);
        }

        .issue-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .issue-card {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 32px;
            background: var(--color-surface);
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .issue-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 0;
            background: var(--color-primary);
            transition: height .3s ease-out;
        }

        .issue-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: rgba(166, 83, 54, .3);
        }

        .issue-card:hover::before {
            height: 100%;
        }

        .issue-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: rgba(166, 83, 54, .08);
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 20px;
        }

        .issue-card h3 {
            font-family: "Noto Serif SC", serif;
            font-size: 19px;
            margin-bottom: 10px;
        }

        .issue-card p {
            font-size: 15px;
            color: var(--color-muted);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ===== Process ===== */
        .process-section {
            background: var(--color-bg);
        }

        .process-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            counter-reset: step;
            position: relative;
        }

        .process-list::before {
            content: "";
            position: absolute;
            top: 32px;
            left: 5%;
            right: 5%;
            border-top: 1px dashed var(--color-border);
            z-index: 0;
        }

        .process-item {
            text-align: center;
            padding: 0 20px;
            position: relative;
            z-index: 1;
        }

        .process-node {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            border-radius: 50%;
            background: var(--color-surface);
            border: 2px solid var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: "Noto Serif SC", serif;
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
            box-shadow: var(--shadow-xs);
            transition: var(--transition-base);
        }

        .process-item:hover .process-node {
            background: var(--color-primary);
            color: #fff;
            transform: scale(1.05);
        }

        .process-item h3 {
            font-size: 18px;
            margin-bottom: 8px;
        }

        .process-item p {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ===== Scenarios ===== */
        .scenario-section {
            background: var(--color-surface);
        }

        .scenario-wrap {
            display: flex;
            align-items: center;
            gap: 56px;
        }

        .scenario-image {
            flex: 0 0 46%;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            position: relative;
        }

        .scenario-image img {
            display: block;
            width: 100%;
            height: 380px;
            object-fit: cover;
            border-radius: var(--radius-lg);
            transition: transform .5s ease;
        }

        .scenario-image:hover img {
            transform: scale(1.03);
        }

        .scenario-image::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(30, 28, 25, .2), transparent 40%);
            border-radius: var(--radius-lg);
            pointer-events: none;
        }

        .scenario-content {
            flex: 1;
        }

        .scenario-content .section-title {
            margin-bottom: 20px;
        }

        .scenario-content .section-subtitle {
            margin-bottom: 32px;
        }

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

        .scenario-list li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 14px 0;
            border-bottom: 1px solid var(--color-border);
            font-size: 15px;
            color: var(--color-ink);
            transition: var(--transition-base);
        }

        .scenario-list li:last-child {
            border-bottom: none;
        }

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

        .scenario-list i {
            color: var(--color-secondary);
            font-size: 14px;
            margin-top: 4px;
        }

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

        .faq-wrap {
            display: flex;
            gap: 64px;
            align-items: flex-start;
        }

        .faq-intro {
            flex: 0 0 320px;
            position: sticky;
            top: 100px;
        }

        .faq-intro .section-title {
            margin-bottom: 16px;
        }

        .faq-intro p {
            color: var(--color-muted);
            font-size: 15px;
            margin-bottom: 24px;
        }

        .faq-list {
            flex: 1;
        }

        .accordion {
            --bs-accordion-border-width: 0;
            --bs-accordion-border-radius: 0;
            --bs-accordion-inner-border-radius: 0;
            --bs-accordion-bg: transparent;
        }

        .accordion-item {
            background: transparent;
            border: none;
            border-bottom: 1px solid var(--color-border);
        }

        .accordion-item:first-child {
            border-top: 1px solid var(--color-border);
        }

        .accordion-button {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-ink);
            background: transparent;
            border: none;
            padding: 20px 40px 20px 0;
            box-shadow: none;
            border-radius: 0;
            position: relative;
            cursor: pointer;
            transition: var(--transition-base);
        }

        .accordion-button::after {
            content: "+";
            background: none;
            font-family: "Noto Sans SC", sans-serif;
            font-size: 22px;
            font-weight: 300;
            width: 32px;
            height: 32px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            border-radius: 50%;
            background: rgba(166, 83, 54, .08);
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            transition: var(--transition-base);
        }

        .accordion-button:not(.collapsed)::after {
            content: "−";
            background: var(--color-primary);
            color: #fff;
        }

        .accordion-button:not(.collapsed) {
            color: var(--color-primary);
            background: transparent;
            box-shadow: none;
        }

        .accordion-button:hover {
            color: var(--color-primary);
        }

        .accordion-button:focus-visible {
            outline: none;
            box-shadow: 0 0 0 3px rgba(166, 83, 54, .2);
            border-radius: var(--radius-sm);
        }

        .accordion-body {
            padding: 0 48px 24px 0;
            font-size: 15px;
            color: var(--color-muted);
            line-height: 1.8;
        }

        #faqAccordion .accordion-collapse {
            border-bottom: none;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--color-dark);
            padding: 96px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(245, 242, 238, .04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(245, 242, 238, .04) 1px, transparent 1px);
            background-size: 56px 56px;
            pointer-events: none;
        }

        .cta-section::after {
            content: "";
            position: absolute;
            width: 420px;
            height: 420px;
            border: 1px solid rgba(245, 242, 238, .08);
            border-radius: 50%;
            top: -180px;
            right: -100px;
            pointer-events: none;
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            color: #F5F2EE;
            font-size: clamp(1.75rem, 3vw, 2.5rem);
            margin-bottom: 16px;
        }

        .cta-inner p {
            color: #CFC9C2;
            font-size: 16px;
            margin-bottom: 32px;
            line-height: 1.7;
        }

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

        .cta-section .btn-primary {
            background: var(--color-primary);
            border: 1px solid var(--color-primary);
        }

        .cta-section .btn-outline {
            border-color: #F5F2EE;
            color: #F5F2EE;
        }

        .cta-section .btn-outline:hover {
            background: #F5F2EE;
            color: var(--color-dark);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-bg);
            border-top: 1px solid var(--color-border);
        }

        .footer-main {
            padding: 64px 0 40px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-brand-text {
            font-family: "Noto Serif SC", serif;
            font-size: 18px;
            font-weight: 700;
            color: var(--color-ink);
        }

        .footer-desc {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.7;
            margin-bottom: 0;
            max-width: 320px;
        }

        .footer-title {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--color-ink);
            font-family: "Noto Sans SC", sans-serif;
        }

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

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

        .footer-links a {
            font-size: 14px;
            color: var(--color-muted);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition-base);
        }

        .footer-links a::before {
            content: "";
            width: 0;
            height: 1px;
            background: var(--color-primary);
            transition: width .3s ease;
        }

        .footer-links a:hover {
            color: var(--color-primary);
            padding-left: 6px;
        }

        .footer-links a:hover::before {
            width: 6px;
            background: var(--color-primary);
        }

        .footer-bottom {
            border-top: 1px solid var(--color-border);
            padding: 20px 0;
        }

        .footer-bottom-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 8px;
            font-size: 13px;
            color: var(--color-muted);
        }

        .footer-bottom-inner a {
            color: var(--color-muted);
        }

        .footer-bottom-inner a:hover {
            color: var(--color-primary);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1199.98px) {
            .navbar-nav {
                margin-right: 8px;
            }

            .search-form input {
                width: 120px;
            }

            .nav-link {
                padding: 8px 10px !important;
                font-size: 14px;
            }

            .process-item {
                padding: 0 12px;
            }
        }

        @media (max-width: 991.98px) {
            .navbar {
                min-height: 64px;
            }

            .navbar-collapse {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--color-surface);
                padding: 16px 24px 24px;
                box-shadow: 0 8px 24px rgba(30, 28, 25, .08);
                border-top: 1px solid var(--color-border);
            }

            .navbar-nav {
                align-items: flex-start;
                margin-right: 0;
                margin-bottom: 16px;
            }

            .nav-link {
                display: block;
                width: 100%;
                padding: 12px 0 !important;
                border-bottom: 1px solid var(--color-border);
                border-radius: 0;
            }

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

            .nav-actions {
                flex-wrap: wrap;
                gap: 12px;
                width: 100%;
            }

            .search-form {
                flex: 1;
                min-width: 200px;
            }

            .btn-login {
                width: 100%;
                justify-content: center;
            }

            .page-hero {
                padding: 64px 0 56px;
            }

            .section {
                padding: 72px 0;
            }

            .issue-grid {
                gap: 16px;
            }

            .issue-card {
                padding: 24px;
            }

            .process-list {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px 24px;
            }

            .process-list::before {
                display: none;
            }

            .scenario-wrap {
                flex-direction: column;
                gap: 32px;
            }

            .scenario-image {
                flex: none;
                width: 100%;
            }

            .scenario-image img {
                height: 300px;
            }

            .faq-wrap {
                flex-direction: column;
                gap: 32px;
            }

            .faq-intro {
                flex: none;
                position: static;
                width: 100%;
            }
        }

        @media (max-width: 767.98px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

            .section {
                padding: 56px 0;
            }

            .section-head {
                margin-bottom: 36px;
            }

            .page-hero h1 {
                font-size: clamp(1.9rem, 6vw, 2.4rem);
            }

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

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

            .hero-trust {
                gap: 8px 16px;
                flex-direction: column;
                align-items: flex-start;
            }

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

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

            .process-item {
                display: flex;
                align-items: flex-start;
                text-align: left;
                gap: 16px;
                padding: 0;
            }

            .process-node {
                margin: 0;
                flex-shrink: 0;
            }

            .process-item h3 {
                margin-bottom: 4px;
            }

            .scenario-image img {
                height: 220px;
            }

            .faq-list .accordion-button {
                font-size: 15px;
                padding: 16px 36px 16px 0;
            }

            .accordion-body {
                padding-right: 0;
                font-size: 14px;
            }

            .cta-section {
                padding: 64px 0;
            }

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

            .footer-main {
                padding: 48px 0 24px;
            }

            .footer-bottom-inner {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
        }

        @media (max-width: 519.98px) {
            .brand-main {
                font-size: 17px;
            }

            .brand-sub {
                font-size: 12px;
            }

            .search-form {
                min-width: 0;
            }

            .search-form input {
                width: 100px;
            }
        }

/* roulang page: category3 */
:root {
  --color-bg: #F8F6F3;
  --color-surface: #FFFFFF;
  --color-ink: #1E1C19;
  --color-muted: #6F6A63;
  --color-primary: #A65336;
  --color-primary-dark: #8F4529;
  --color-secondary: #7A7F64;
  --color-accent: #B08D57;
  --color-border: #E7E1DB;
  --color-dark: #211E1B;
  --color-warm-white: #F5F2EE;
  --color-soft-gray: #CFC9C2;
  --shadow-xs: 0 1px 2px rgba(30,28,25,.04);
  --shadow-md: 0 8px 24px rgba(30,28,25,.06);
  --radius-small: 8px;
  --radius-card: 12px;
  --radius-large: 16px;
  --radius-pill: 24px;
  --transition-base: 0.3s ease-out;
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-ink);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color .25s ease; }
a:hover { color: var(--color-primary-dark); }
h1,h2,h3,h4,h5,h6 { font-family: var(--font-serif); font-weight: 600; line-height: 1.3; margin-top: 0; }
.container { max-width: 1320px; padding-left: 24px; padding-right: 24px; }
.btn { border-radius: var(--radius-small); padding: 12px 28px; font-weight: 500; }
.btn-primary { background-color: var(--color-primary); border-color: var(--color-primary); color: #fff; }
.btn-primary:hover { background-color: var(--color-primary-dark); border-color: var(--color-primary-dark); color: #fff; }
.btn-primary:active { background-color: #6F361F !important; border-color: #6F361F !important; }
.btn-outline-dark { border-color: var(--color-ink); color: var(--color-ink); background: transparent; }
.btn-outline-dark:hover { background-color: var(--color-ink); border-color: var(--color-ink); color: #fff; }
.btn-lg { padding: 14px 36px; border-radius: 10px; }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1030;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-xs);
}
.site-header .navbar { padding: 0; min-height: 72px; }
.navbar-brand { display: flex; align-items: center; padding: 10px 0; }
.brand-icon img { display: block; border-radius: 10px; }
.brand-text { display: flex; flex-direction: column; margin-left: 12px; line-height: 1.2; }
.brand-main { font-size: 17px; font-weight: 600; color: var(--color-ink); font-family: var(--font-serif); }
.brand-sub { font-size: 13px; font-weight: 600; color: var(--color-primary); }
.navbar-nav { margin-left: auto; }
.navbar-nav .nav-item { margin: 0 2px; }
.navbar-nav .nav-link {
  padding: 24px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-ink);
  position: relative;
  white-space: nowrap;
}
.navbar-nav .nav-link::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 14px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s ease-out;
}
.navbar-nav .nav-link:hover { color: var(--color-primary); }
.navbar-nav .nav-link:hover::after { transform: scaleX(1); }
.navbar-nav .nav-link.active { color: var(--color-primary); }
.navbar-nav .nav-link.active::after { transform: scaleX(1); }
.nav-actions { display: flex; align-items: center; gap: 12px; margin-left: 18px; }
.search-form {
  display: flex;
  align-items: center;
  background: #F1EFEC;
  border-radius: var(--radius-pill);
  height: 40px;
  padding: 0 6px 0 16px;
  border: 1px solid transparent;
  transition: border-color .25s, background .25s;
}
.search-form:focus-within { background: #fff; border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(166,83,54,.12); }
.search-form input {
  border: none;
  background: transparent;
  outline: none;
  font-size: 14px;
  color: var(--color-ink);
  width: 160px;
}
.search-form input::placeholder { color: var(--color-muted); }
.search-form button {
  width: 32px; height: 32px;
  border: none;
  background: transparent;
  color: var(--color-muted);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  transition: background .2s, color .2s;
}
.search-form button:hover { background: rgba(30,28,25,.06); color: var(--color-primary); }
.btn-login { height: 40px; padding: 0 22px; display: inline-flex; align-items: center; border-radius: var(--radius-pill); font-size: 15px; }
.navbar-toggler { border: none; color: var(--color-ink); }
.navbar-toggler:focus { box-shadow: none; }
@media (max-width: 991.98px) {
  .site-header .navbar { min-height: 64px; }
  .navbar-collapse { background: var(--color-surface); padding: 16px 0 24px; border-top: 1px solid var(--color-border); }
  .navbar-nav .nav-item { margin: 0; }
  .navbar-nav .nav-link { padding: 12px 4px; }
  .navbar-nav .nav-link::after { display: none; }
  .nav-actions { margin-left: 0; flex-wrap: wrap; border-top: 1px solid var(--color-border); padding-top: 16px; }
  .search-form { width: calc(100% - 50px); }
  .search-form input { flex: 1; width: auto; }
  .btn-login { flex-shrink: 0; }
}

/* Page Hero */
.page-hero {
  padding: 84px 0 64px;
  background-color: var(--color-bg);
  background-image: url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(248,246,243,.95) 0%, rgba(248,246,243,.82) 55%, rgba(248,246,243,.55) 100%);
}
.page-hero .container { position: relative; z-index: 2; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(166,83,54,.08);
  border: 1px solid rgba(166,83,54,.3);
  color: var(--color-primary);
  border-radius: var(--radius-pill);
  padding: 6px 18px;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 24px;
}
.hero-badge i { font-size: 10px; }
.page-hero h1 {
  font-size: clamp(2rem, 3.6vw, 2.8rem);
  line-height: 1.25;
  margin-bottom: 18px;
  letter-spacing: -.01em;
  max-width: 720px;
}
.page-hero h1 span { color: var(--color-primary); }
.page-hero .hero-desc {
  font-size: 17px;
  color: var(--color-muted);
  max-width: 680px;
  margin-bottom: 30px;
  line-height: 1.8;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-meta {
  margin-top: 36px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.hero-meta .tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding: 6px 16px;
  font-size: 13px;
  color: var(--color-muted);
}

/* Section spacing */
.section { padding: 88px 0; }
.section-tight { padding: 64px 0; }
.section-alt { background: var(--color-surface); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
.section-title-wrap { margin-bottom: 48px; max-width: 760px; }
.section-title-wrap .eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--color-primary);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-title-wrap h2 {
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  margin-bottom: 16px;
  line-height: 1.3;
}
.section-title-wrap p { color: var(--color-muted); font-size: 16px; margin-bottom: 0; }

/* Tag */
.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(122,127,100,.12);
  color: var(--color-secondary);
  border-radius: var(--radius-pill);
  padding: 4px 14px;
  font-size: 13px;
  font-weight: 500;
}
.tag-chip-primary {
  background: rgba(166,83,54,.08);
  color: var(--color-primary);
}

/* Feature cards */
.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  height: 100%;
  transition: box-shadow .3s ease-out, transform .3s ease-out;
}
.feature-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.feature-icon {
  width: 52px; height: 52px;
  border-radius: 12px;
  background: rgba(166,83,54,.08);
  color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  margin-bottom: 20px;
}
.feature-card h3 { font-size: 18px; font-family: var(--font-sans); font-weight: 600; margin-bottom: 10px; }
.feature-card p { color: var(--color-muted); font-size: 14.5px; line-height: 1.7; margin-bottom: 0; }

/* Scenario */
.scenario-list { list-style: none; padding: 0; margin: 0; }
.scenario-list li {
  display: flex;
  gap: 20px;
  padding: 28px 0;
  border-bottom: 1px solid var(--color-border);
  transition: background .25s;
  border-radius: 8px;
  padding-left: 12px;
  padding-right: 12px;
}
.scenario-list li:last-child { border-bottom: none; }
.scenario-list li:hover { background: rgba(248,246,243,.7); }
.scenario-num {
  font-family: var(--font-serif);
  font-size: 28px;
  color: var(--color-primary);
  font-weight: 600;
  line-height: 1.2;
  min-width: 56px;
  text-align: right;
}
.scenario-body h3 { font-size: 18px; font-family: var(--font-sans); font-weight: 600; margin-bottom: 6px; }
.scenario-body p { color: var(--color-muted); font-size: 15px; margin-bottom: 8px; line-height: 1.7; }
.scenario-body .scenario-tags { display: flex; gap: 8px; flex-wrap: wrap; }

/* Process timeline */
.process-section { background: var(--color-dark); color: var(--color-warm-white); }
.process-section .section-title-wrap h2 { color: #fff; }
.process-section .section-title-wrap p { color: var(--color-soft-gray); }
.process-section .eyebrow { color: var(--color-accent); }
.steps-row { position: relative; }
.steps-row::before {
  content: "";
  position: absolute;
  top: 30px;
  left: 8%;
  right: 8%;
  border-top: 1px dashed rgba(255,255,255,.2);
}
.step-item { text-align: center; position: relative; padding: 0 16px; }
.step-node {
  width: 60px; height: 60px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px;
  border: 3px solid rgba(255,255,255,.25);
  position: relative;
  box-shadow: 0 0 0 6px rgba(166,83,54,.3);
}
.step-item h3 { color: #fff; font-size: 18px; font-family: var(--font-sans); font-weight: 600; margin-bottom: 10px; }
.step-item p { color: var(--color-soft-gray); font-size: 14.5px; line-height: 1.7; margin-bottom: 0; }
@media (max-width: 767.98px) {
  .steps-row::before { display: none; }
  .step-item { margin-bottom: 32px; }
}

/* Content list */
.content-list { border-top: 1px solid var(--color-border); }
.content-item {
  display: flex;
  gap: 20px;
  padding: 36px 0;
  border-bottom: 1px solid var(--color-border);
  align-items: center;
}
.content-item .content-index {
  font-family: var(--font-serif);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  background: rgba(176,141,87,.12);
  border-radius: 6px;
  padding: 4px 10px;
  flex-shrink: 0;
}
.content-item .content-title { font-size: 17px; font-weight: 600; margin-bottom: 6px; font-family: var(--font-sans); }
.content-item .content-title a { color: var(--color-ink); }
.content-item .content-title a:hover { color: var(--color-primary); }
.content-item .content-desc { color: var(--color-muted); font-size: 14px; line-height: 1.7; margin-bottom: 8px; }
.content-item .content-meta { display: flex; flex-wrap: wrap; gap: 14px; font-size: 13px; color: var(--color-muted); }
.content-item .content-meta i { margin-right: 4px; color: var(--color-border); }

/* Card */
.simple-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 24px;
  height: 100%;
  transition: box-shadow .3s, transform .3s;
}
.simple-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.simple-card h3 { font-size: 17px; font-family: var(--font-sans); font-weight: 600; margin-bottom: 10px; }
.simple-card p { color: var(--color-muted); font-size: 14px; line-height: 1.7; margin-bottom: 0; }
.simple-card .card-link { display: inline-block; margin-top: 12px; font-size: 14px; font-weight: 500; color: var(--color-primary); }
.simple-card .card-link i { margin-left: 4px; }

/* FAQ */
.faq-wrap { border-top: 1px solid var(--color-border); }
.faq-item { border-bottom: 1px solid var(--color-border); padding: 0; }
.faq-item .faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 8px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-ink);
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  transition: color .25s;
}
.faq-item .faq-q:hover { color: var(--color-primary); }
.faq-item .faq-q .faq-icon {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: rgba(166,83,54,.08);
  color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
  transition: transform .3s, background .3s;
}
.faq-item .faq-a {
  padding: 0 8px 24px;
  color: var(--color-muted);
  font-size: 15px;
  line-height: 1.75;
}
.faq-item .faq-a p:last-child { margin-bottom: 0; }

/* Sidebar */
.sidebar-widget {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  margin-bottom: 24px;
}
.sidebar-widget h3 {
  font-size: 16px;
  font-family: var(--font-sans);
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-border);
}
.sidebar-link-list { list-style: none; padding: 0; margin: 0; }
.sidebar-link-list li { margin-bottom: 10px; }
.sidebar-link-list a { color: var(--color-muted); font-size: 14px; display: flex; align-items: center; gap: 8px; }
.sidebar-link-list a i { font-size: 10px; color: var(--color-border); }
.sidebar-link-list a:hover { color: var(--color-primary); }
.sidebar-cta {
  background: var(--color-dark);
  border-radius: var(--radius-card);
  padding: 32px 24px;
  text-align: center;
  color: #fff;
}
.sidebar-cta h3 { color: #fff; font-size: 18px; font-family: var(--font-sans); font-weight: 600; }
.sidebar-cta p { color: var(--color-soft-gray); font-size: 14px; }
.sidebar-cta .btn { background: var(--color-primary); border-color: var(--color-primary); }
.sidebar-cta .btn:hover { background: var(--color-primary-dark); }
.sidebar-cta .btn-outline-light:hover { background: #fff; color: var(--color-ink); border-color: #fff; }
.sidebar-faq .faq-mini-item { border-bottom: 1px dashed var(--color-border); padding: 12px 0; }
.sidebar-faq .faq-mini-item:last-child { border-bottom: none; }
.sidebar-faq .mini-q { font-size: 14px; font-weight: 500; color: var(--color-ink); cursor: pointer; margin-bottom: 4px; }
.sidebar-faq .mini-q:hover { color: var(--color-primary); }

/* CTA band */
.cta-band {
  background: var(--color-dark);
  padding: 84px 0;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-2.png') center/cover;
  opacity: .12;
}
.cta-band .container { position: relative; z-index: 2; }
.cta-band h2 {
  font-size: clamp(1.75rem, 3.2vw, 2.4rem);
  color: #fff;
  margin-bottom: 14px;
}
.cta-band p { color: var(--color-soft-gray); font-size: 16px; margin-bottom: 32px; max-width: 560px; margin-left: auto; margin-right: auto; }

/* Footer */
.site-footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding-top: 72px;
}
.footer-main { padding-bottom: 40px; }
.footer-brand { display: flex; align-items: center; margin-bottom: 18px; }
.footer-brand-text {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--color-ink);
  margin-left: 12px;
}
.footer-desc { color: var(--color-muted); font-size: 14px; line-height: 1.7; max-width: 320px; }
.footer-title { font-size: 14px; font-weight: 600; color: var(--color-ink); margin-bottom: 18px; font-family: var(--font-sans); }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: var(--color-muted); font-size: 14px; }
.footer-links a:hover { color: var(--color-primary); }
.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: 24px 0;
  font-size: 13px;
  color: var(--color-muted);
  text-align: center;
}
.footer-bottom a { color: var(--color-muted); }
.footer-bottom a:hover { color: var(--color-primary); }
@media (max-width: 767.98px) {
  .footer-bottom .d-flex { flex-direction: column; gap: 8px; }
  .site-footer { padding-top: 48px; }
}

/* Utility */
.text-primary-custom { color: var(--color-primary); }
.bg-surface { background: var(--color-surface); }
.bg-warm { background: #F1EFEC; }
.rounded-12 { border-radius: var(--radius-card); }
.shadow-soft { box-shadow: var(--shadow-md); }
@media (max-width: 575.98px) {
  .page-hero { padding: 56px 0 48px; }
  .section { padding: 64px 0; }
  .section-tight { padding: 48px 0; }
  .content-item { flex-direction: column; align-items: flex-start; gap: 12px; }
  .scenario-list li { padding-left: 0; padding-right: 0; }
  .page-hero .hero-desc { font-size: 16px; }
}

/* roulang page: category4 */
:root {
            --color-bg: #F8F6F3;
            --color-surface: #FFFFFF;
            --color-ink: #1E1C19;
            --color-muted: #6F6A63;
            --color-primary: #A65336;
            --color-secondary: #7A7F64;
            --color-accent: #B08D57;
            --color-border: #E7E1DB;
            --color-dark: #211E1B;
            --radius-xs: 6px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-pill: 24px;
            --shadow-xs: 0 1px 2px rgba(30, 28, 25, .04);
            --shadow-md: 0 8px 24px rgba(30, 28, 25, .06);
            --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
            --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background: var(--color-bg);
            color: var(--color-ink);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color .3s ease;
        }
        a:hover {
            color: #8a4229;
        }
        img {
            max-width: 100%;
            display: block;
            border-radius: var(--radius-md);
        }
        .container {
            max-width: 1320px;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section {
            padding: 96px 0;
        }
        .section-head {
            margin-bottom: 56px;
            text-align: center;
            max-width: 720px;
            margin-left: auto;
            margin-right: auto;
        }
        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-primary);
            background: rgba(166, 83, 54, .08);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            margin-bottom: 16px;
        }
        .section-eyebrow i {
            font-size: 12px;
        }
        .section-title {
            font-family: var(--font-serif);
            font-size: clamp(1.75rem, 3vw, 2.5rem);
            font-weight: 600;
            line-height: 1.3;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
        }
        .section-sub {
            color: var(--color-muted);
            font-size: 16px;
            line-height: 1.75;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-family: var(--font-sans);
            font-weight: 500;
            border-radius: var(--radius-sm);
            padding: 12px 28px;
            font-size: 15px;
            border: 1px solid transparent;
            transition: all .3s ease;
            line-height: 1.4;
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }
        .btn-primary {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #fff !important;
        }
        .btn-primary:hover {
            background: #8a4229;
            border-color: #8a4229;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(166, 83, 54, .18);
        }
        .btn-primary:active {
            background: #783a24;
            transform: translateY(0);
        }
        .btn-primary:focus-visible,
        .btn-dark:focus-visible,
        .btn-outline:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 3px;
            box-shadow: 0 0 0 6px rgba(166, 83, 54, .12);
        }
        .btn-dark {
            background: var(--color-ink);
            border-color: var(--color-ink);
            color: #fff;
        }
        .btn-dark:hover {
            background: #111;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(30, 28, 25, .15);
        }
        .btn-outline {
            background: transparent;
            border-color: var(--color-ink);
            color: var(--color-ink);
        }
        .btn-outline:hover {
            background: var(--color-ink);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline-light {
            background: transparent;
            border-color: rgba(255, 255, 255, .7);
            color: #fff;
        }
        .btn-outline-light:hover {
            background: #fff;
            color: var(--color-dark);
        }
        .btn-light-solid {
            background: #fff;
            color: var(--color-dark);
            border-color: #fff;
        }
        .btn-light-solid:hover {
            background: #f0ebe6;
            transform: translateY(-2px);
        }
        .site-header {
            background: var(--color-surface);
            box-shadow: 0 1px 0 var(--color-border);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .site-header .navbar {
            min-height: 72px;
            padding-top: 0;
            padding-bottom: 0;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 8px 0;
            margin-right: 32px;
        }
        .brand-icon {
            display: inline-flex;
            flex-shrink: 0;
        }
        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }
        .brand-main {
            font-family: var(--font-serif);
            font-size: 18px;
            font-weight: 600;
            color: var(--color-ink);
            letter-spacing: .02em;
        }
        .brand-sub {
            font-size: 13px;
            font-weight: 500;
            color: var(--color-primary);
            letter-spacing: .04em;
        }
        .navbar-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-ink);
            padding: 8px 14px !important;
            border-radius: var(--radius-sm);
            position: relative;
            transition: color .3s ease;
        }
        .nav-link:hover,
        .nav-link:focus {
            color: var(--color-primary);
        }
        .nav-link.active {
            color: var(--color-primary);
        }
        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-left: auto;
        }
        .search-form {
            display: flex;
            align-items: center;
            background: #F1EFEC;
            border-radius: var(--radius-pill);
            padding: 0 6px 0 16px;
            height: 40px;
            width: 240px;
            border: 1px solid transparent;
            transition: all .3s ease;
        }
        .search-form:focus-within {
            background: #fff;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(166, 83, 54, .12);
        }
        .search-form input {
            border: none;
            background: transparent;
            font-size: 14px;
            color: var(--color-ink);
            flex: 1;
            outline: none;
            min-width: 0;
        }
        .search-form input::placeholder {
            color: var(--color-muted);
            font-size: 14px;
        }
        .search-form button {
            border: none;
            background: transparent;
            color: var(--color-muted);
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: all .3s ease;
        }
        .search-form button:hover {
            color: var(--color-primary);
            background: rgba(166, 83, 54, .08);
        }
        .btn-login {
            padding: 10px 22px;
            font-size: 15px;
            white-space: nowrap;
        }
        .navbar-toggler {
            border: none;
            border-radius: var(--radius-sm);
            padding: 4px 8px;
            background: transparent;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(166, 83, 54, .12);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%231E1C19' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        .hero {
            position: relative;
            background: var(--color-bg);
            padding: 88px 0 80px;
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: .18;
            z-index: 0;
        }
        .hero-bg::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(248, 246, 243, .94) 0%, rgba(248, 246, 243, .78) 60%, rgba(248, 246, 243, .55) 100%);
        }
        .hero-inner {
            position: relative;
            z-index: 1;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-surface);
            border: 1px solid var(--color-primary);
            color: var(--color-primary);
            font-size: 14px;
            font-weight: 500;
            padding: 5px 16px;
            border-radius: var(--radius-pill);
            margin-bottom: 24px;
        }
        .hero-badge .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-primary);
            display: inline-block;
        }
        .hero-title {
            font-family: var(--font-serif);
            font-size: clamp(2.2rem, 4.5vw, 3.6rem);
            font-weight: 600;
            line-height: 1.18;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
        }
        .hero-title span {
            color: var(--color-primary);
        }
        .hero-desc {
            font-size: 17px;
            color: var(--color-muted);
            max-width: 560px;
            line-height: 1.8;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 36px;
        }
        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px 24px;
            font-size: 14px;
            color: var(--color-muted);
        }
        .hero-trust .item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .hero-trust .item i {
            color: var(--color-secondary);
            font-size: 13px;
        }
        .hero-trust .sep {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--color-border);
        }
        .hero-panel {
            position: relative;
            z-index: 1;
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border);
            overflow: hidden;
            max-width: 480px;
            margin-left: auto;
        }
        .panel-header {
            padding: 24px 28px 0;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .panel-header .dots {
            display: flex;
            gap: 6px;
        }
        .panel-header .dots span {
            width: 10px;
            height: 10px;
            border-radius: 50%;
        }
        .panel-header .dots span:first-child {
            background: #e0a38f;
        }
        .panel-header .dots span:nth-child(2) {
            background: var(--color-accent);
        }
        .panel-header .dots span:last-child {
            background: var(--color-secondary);
        }
        .panel-header .url-bar {
            flex: 1;
            background: #F1EFEC;
            border-radius: var(--radius-pill);
            font-size: 12px;
            color: var(--color-muted);
            padding: 4px 14px;
            display: flex;
            align-items: center;
            gap: 6px;
            margin-left: 8px;
        }
        .panel-body {
            padding: 28px;
        }
        .panel-title {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .panel-sub {
            font-size: 13px;
            color: var(--color-muted);
            margin-bottom: 20px;
        }
        .panel-field {
            background: #F8F6F3;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            font-size: 14px;
            color: var(--color-muted);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .panel-field i {
            font-size: 13px;
        }
        .panel-btn {
            background: var(--color-primary);
            color: #fff;
            text-align: center;
            padding: 12px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            margin-bottom: 14px;
        }
        .panel-note {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--color-muted);
        }
        .brand-feature {
            padding: 72px 0;
            background: var(--color-surface);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .brand-feature .main-feature {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
            margin-bottom: 64px;
        }
        .brand-feature .feature-media img {
            width: 100%;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            aspect-ratio: 4/3;
            object-fit: cover;
        }
        .brand-feature .feature-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-secondary);
            background: rgba(122, 127, 100, .12);
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 16px;
        }
        .brand-feature .feature-title {
            font-family: var(--font-serif);
            font-size: clamp(1.4rem, 2.2vw, 2rem);
            font-weight: 600;
            line-height: 1.35;
            margin-bottom: 16px;
        }
        .brand-feature .feature-desc {
            color: var(--color-muted);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .brand-feature .feature-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .brand-feature .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 15px;
            color: var(--color-ink);
            padding: 7px 0;
        }
        .brand-feature .feature-list li i {
            color: var(--color-primary);
            font-size: 14px;
            margin-top: 5px;
        }
        .two-col-feature {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        .feature-card-decor {
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 32px;
            transition: all .3s ease;
        }
        .feature-card-decor:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .feature-card-decor .icon-wrap {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(166, 83, 54, .09);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 18px;
        }
        .feature-card-decor h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
            font-family: var(--font-sans);
        }
        .feature-card-decor p {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }
        .steps-section {
            padding: 96px 0;
            background: var(--color-bg);
        }
        .steps-wrapper {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }
        .step-item {
            position: relative;
            padding: 32px 24px 24px;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            transition: all .3s ease;
        }
        .step-item:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .step-num {
            font-family: var(--font-serif);
            font-size: 32px;
            font-weight: 600;
            color: var(--color-primary);
            line-height: 1;
            margin-bottom: 16px;
        }
        .step-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(122, 127, 100, .12);
            color: var(--color-secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            margin-bottom: 16px;
        }
        .step-item:hover .step-icon {
            background: var(--color-primary);
            color: #fff;
        }
        .step-title {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .step-desc {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }
        .step-arrow {
            position: absolute;
            right: -18px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--color-border);
            font-size: 14px;
            z-index: 2;
            background: var(--color-bg);
            border-radius: 50%;
            padding: 4px;
        }
        .scenario-section {
            padding: 96px 0;
            background: var(--color-surface);
        }
        .scenario-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .scenario-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all .3s ease;
        }
        .scenario-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--color-primary);
        }
        .scenario-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
        }
        .scenario-card .card-body {
            padding: 28px;
        }
        .scenario-card .card-body .tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-secondary);
            background: rgba(122, 127, 100, .12);
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 14px;
        }
        .scenario-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
            font-family: var(--font-sans);
        }
        .scenario-card p {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.75;
            margin-bottom: 0;
        }
        .scenario-strip {
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 28px 32px;
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
        }
        .scenario-strip .icon-wrap {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(166, 83, 54, .09);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
        }
        .scenario-strip h4 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .scenario-strip p {
            font-size: 14px;
            color: var(--color-muted);
            margin-bottom: 0;
        }
        .scenario-strip .btn {
            margin-left: auto;
        }
        .faq-section {
            padding: 96px 0;
            background: var(--color-bg);
        }
        .faq-layout {
            display: grid;
            grid-template-columns: 2fr 3fr;
            gap: 64px;
            align-items: start;
        }
        .faq-intro {
            position: sticky;
            top: 110px;
        }
        .faq-intro .section-title {
            margin-bottom: 20px;
        }
        .faq-intro p {
            color: var(--color-muted);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 28px;
        }
        .faq-intro .contact-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 500;
        }
        .faq-list .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all .3s ease;
        }
        .faq-list .faq-item:hover {
            border-color: var(--color-primary);
        }
        .faq-question {
            width: 100%;
            background: transparent;
            border: none;
            text-align: left;
            padding: 18px 20px;
            font-size: 16px;
            font-weight: 500;
            color: var(--color-ink);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            cursor: pointer;
            transition: color .3s ease;
        }
        .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-question:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: -2px;
        }
        .faq-icon {
            font-size: 18px;
            color: var(--color-primary);
            flex-shrink: 0;
            transition: transform .3s ease;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            display: none;
            padding: 0 20px 20px;
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.8;
            border-top: 1px solid var(--color-border);
            padding-top: 16px;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .cta-band {
            background: var(--color-dark);
            position: relative;
            padding: 96px 0;
            overflow: hidden;
            text-align: center;
        }
        .cta-band::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: .08;
        }
        .cta-band::after {
            content: "";
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 640px;
            height: 640px;
            border: 1px solid rgba(255, 255, 255, .06);
            border-radius: 50%;
        }
        .cta-inner {
            position: relative;
            z-index: 1;
            max-width: 680px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-family: var(--font-serif);
            font-size: clamp(1.75rem, 3vw, 2.75rem);
            font-weight: 600;
            color: #F5F2EE;
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .cta-inner p {
            color: #CFC9C2;
            font-size: 16px;
            line-height: 1.7;
            margin-bottom: 32px;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 14px;
        }
        .site-footer {
            background: var(--color-bg);
            border-top: 1px solid var(--color-border);
            padding-top: 72px;
        }
        .footer-main {
            padding-bottom: 48px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }
        .footer-brand-text {
            font-family: var(--font-serif);
            font-size: 18px;
            font-weight: 600;
            color: var(--color-ink);
        }
        .footer-desc {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.8;
            max-width: 320px;
            margin-bottom: 0;
        }
        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-ink);
            margin-bottom: 16px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--color-muted);
            transition: color .3s ease;
        }
        .footer-links a:hover {
            color: var(--color-primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--color-border);
            padding: 24px 0;
        }
        .footer-bottom p {
            font-size: 13px;
            color: var(--color-muted);
            margin-bottom: 0;
            text-align: center;
        }
        @media (max-width: 991.98px) {
            .section {
                padding: 72px 0;
            }
            .steps-section,
            .faq-section,
            .scenario-section {
                padding: 72px 0;
            }
            .navbar-collapse {
                background: var(--color-surface);
                padding: 16px 0 24px;
                border-top: 1px solid var(--color-border);
                margin-top: 8px;
            }
            .navbar-nav {
                align-items: stretch;
                gap: 0;
                padding-bottom: 12px;
            }
            .nav-link {
                padding: 12px 0 !important;
                border-bottom: 1px solid var(--color-border);
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-actions {
                flex-direction: column;
                align-items: stretch;
                margin-left: 0;
                gap: 12px;
            }
            .search-form {
                width: 100%;
            }
            .btn-login {
                width: 100%;
                padding: 12px 22px;
            }
            .hero {
                padding: 64px 0 56px;
            }
            .hero-panel {
                margin-left: 0;
                margin-top: 40px;
            }
            .brand-feature .main-feature {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .two-col-feature {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .steps-wrapper {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .step-arrow {
                display: none;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .faq-layout {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .faq-intro {
                position: static;
            }
            .cta-band {
                padding: 64px 0;
            }
        }
        @media (max-width: 767.98px) {
            .site-header .navbar {
                min-height: 64px;
            }
            .brand-main {
                font-size: 16px;
            }
            .brand-sub {
                font-size: 12px;
            }
            .hero-trust {
                gap: 10px 18px;
            }
            .hero-trust .sep {
                display: none;
            }
            .scenario-strip {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }
            .scenario-strip .btn {
                margin-left: 0;
                width: 100%;
            }
            .cta-actions .btn {
                width: 100%;
            }
        }
        @media (max-width: 575.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section {
                padding: 56px 0;
            }
            .hero {
                padding: 48px 0 48px;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .hero-title {
                font-size: 2rem;
            }
            .footer-main .row .col-6 {
                flex: 0 0 50%;
            }
        }