/* roulang page: index */
:root {
            --color-primary: #B6893F;
            --color-secondary: #7A5B35;
            --color-bg: #F6F3EE;
            --color-surface: #FFFFFF;
            --color-text: #26211C;
            --color-muted: #6B625A;
            --color-weak: #9B938A;
            --color-border: #E9E2D8;
            --color-dark: #1F1B17;
            --color-gold-light: #D8B878;
            --color-success: #3E7C4F;
            --color-warning: #A66A2E;
            --color-error: #B4453A;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-input: 4px;
            --shadow-card: 0 2px 12px rgba(31, 27, 23, 0.05);
            --shadow-card-hover: 0 6px 24px rgba(31, 27, 23, 0.10);
            --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
            --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 120px;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color .2s ease;
        }

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

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

        .container {
            max-width: 1200px;
        }

        .section-padding {
            padding: 96px 0;
        }

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

        .section-header .eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .12em;
            color: var(--color-primary);
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .section-header h2 {
            font-family: var(--font-serif);
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-dark);
            margin: 0 0 12px;
        }

        .section-header p {
            color: var(--color-muted);
            font-size: 16px;
            max-width: 640px;
        }

        .btn {
            border-radius: var(--radius-btn);
            font-weight: 600;
            transition: all .2s ease;
            padding: 10px 24px;
            font-size: 15px;
            line-height: 1.5;
        }

        .btn:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(31, 27, 23, .12);
        }

        .btn:active {
            transform: translateY(0);
        }

        .btn:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

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

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

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

        .btn-outline:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        .btn-outline-light {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, .7);
            color: #fff;
        }

        .btn-outline-light:hover {
            border-color: #fff;
            color: #fff;
            background: rgba(255, 255, 255, .08);
        }

        .btn-lg {
            padding: 13px 32px;
            font-size: 16px;
        }

        .badge-tag {
            display: inline-block;
            background: rgba(182, 137, 63, .12);
            color: var(--color-primary);
            border-radius: 4px;
            padding: 2px 10px;
            font-size: 13px;
            font-weight: 600;
        }

        /* ===== Header & Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(246, 243, 238, .92);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--color-border);
        }

        .header-top {
            padding: 14px 0;
            border-bottom: 1px solid rgba(233, 226, 216, .6);
        }

        .header-top .container {
            display: flex;
            align-items: center;
            gap: 24px;
        }

        .brand {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            flex-shrink: 0;
        }

        .brand-main {
            font-family: var(--font-serif);
            font-size: 26px;
            font-weight: 700;
            color: var(--color-dark);
            letter-spacing: .02em;
        }

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

        .brand-sub {
            font-size: 12px;
            color: var(--color-muted);
            letter-spacing: .16em;
            text-transform: uppercase;
        }

        .header-search {
            flex: 1;
            display: flex;
            align-items: center;
            max-width: 480px;
            margin: 0 auto;
            position: relative;
        }

        .header-search input {
            width: 100%;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-input);
            background: var(--color-surface);
            padding: 9px 40px 9px 16px;
            font-size: 14px;
            color: var(--color-text);
            transition: border-color .2s, box-shadow .2s;
        }

        .header-search input:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(182, 137, 63, .12);
        }

        .header-search button {
            position: absolute;
            right: 4px;
            top: 50%;
            transform: translateY(-50%);
            background: transparent;
            border: none;
            color: var(--color-muted);
            padding: 6px 12px;
            font-size: 16px;
            cursor: pointer;
        }

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

        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .header-actions .btn {
            padding: 7px 18px;
            font-size: 14px;
        }

        .header-nav {
            padding: 0;
        }

        .nav-tabs {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 4px;
            overflow-x: auto;
            scrollbar-width: none;
            -webkit-overflow-scrolling: touch;
        }

        .nav-tabs::-webkit-scrollbar {
            display: none;
        }

        .nav-tabs li {
            flex-shrink: 0;
        }

        .nav-tabs a {
            display: inline-block;
            padding: 10px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-muted);
            border-bottom: 2px solid transparent;
            transition: color .2s, border-color .2s;
            white-space: nowrap;
        }

        .nav-tabs a:hover {
            color: var(--color-dark);
        }

        .nav-tabs a.active {
            color: var(--color-primary);
            border-bottom-color: var(--color-primary);
            font-weight: 600;
        }

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

        .nav-tabs a.cta-link:hover {
            color: var(--color-secondary);
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            min-height: 640px;
            display: flex;
            align-items: center;
            padding: 72px 0;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(105deg,
                    rgba(246, 243, 238, .96) 0%,
                    rgba(246, 243, 238, .90) 38%,
                    rgba(31, 27, 23, .78) 100%);
        }

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

        .hero-content {
            color: var(--color-dark);
            padding-right: 30px;
        }

        .hero-content h1 {
            font-family: var(--font-serif);
            font-size: 48px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 20px;
            color: var(--color-dark);
            letter-spacing: .01em;
        }

        .hero-content .lead {
            font-size: 17px;
            line-height: 1.75;
            color: var(--color-muted);
            margin-bottom: 32px;
            max-width: 520px;
        }

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

        .hero-stats {
            display: flex;
            gap: 36px;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid rgba(233, 226, 216, .8);
        }

        .hero-stats .stat-num {
            font-family: var(--font-serif);
            font-size: 32px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1;
        }

        .hero-stats .stat-label {
            font-size: 13px;
            color: var(--color-muted);
            margin-top: 6px;
        }

        .login-card {
            background: rgba(255, 255, 255, .94);
            border: 1px solid rgba(233, 226, 216, .8);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 36px 32px;
            max-width: 380px;
            margin-left: auto;
            backdrop-filter: blur(6px);
        }

        .login-card h3 {
            font-family: var(--font-serif);
            font-size: 22px;
            font-weight: 700;
            color: var(--color-dark);
            margin-bottom: 6px;
        }

        .login-card .sub {
            font-size: 14px;
            color: var(--color-muted);
            margin-bottom: 24px;
        }

        .form-group {
            margin-bottom: 18px;
        }

        .form-group label {
            font-size: 13px;
            color: var(--color-muted);
            margin-bottom: 6px;
            display: block;
        }

        .form-group input {
            width: 100%;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-input);
            background: var(--color-surface);
            padding: 10px 14px;
            font-size: 14px;
            color: var(--color-text);
            transition: border-color .2s, box-shadow .2s;
        }

        .form-group input:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(182, 137, 63, .10);
        }

        .form-group input.has-error {
            border-color: var(--color-error);
        }

        .error-msg {
            font-size: 12px;
            color: var(--color-error);
            margin-top: 4px;
            display: none;
        }

        .login-card .btn {
            width: 100%;
            padding: 12px;
            margin-top: 8px;
        }

        .login-links {
            display: flex;
            justify-content: space-between;
            margin-top: 16px;
            font-size: 13px;
        }

        .login-links a {
            color: var(--color-muted);
        }

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

        /* ===== Benefits Table ===== */
        .benefits-section {
            background: var(--color-bg);
        }

        .benefit-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            background: var(--color-surface);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            margin-bottom: 0;
        }

        .benefit-table thead th {
            background: var(--color-dark);
            color: #F6F3EE;
            font-size: 15px;
            font-weight: 600;
            padding: 16px 18px;
            border-bottom: none;
            text-align: center;
            font-family: var(--font-sans);
        }

        .benefit-table thead th:first-child {
            text-align: left;
            padding-left: 24px;
        }

        .benefit-table tbody td {
            padding: 14px 18px;
            text-align: center;
            font-size: 14px;
            color: var(--color-text);
            border-bottom: 1px solid var(--color-border);
            vertical-align: middle;
        }

        .benefit-table tbody td:first-child {
            text-align: left;
            padding-left: 24px;
            font-weight: 500;
            color: var(--color-dark);
        }

        .benefit-table tbody tr:last-child td {
            border-bottom: none;
        }

        .benefit-table tbody tr:hover td {
            background: rgba(246, 243, 238, .6);
        }

        .benefit-table .featured-col {
            background: rgba(182, 137, 63, .05);
            border-left: 1px dashed rgba(182, 137, 63, .3);
            border-right: 1px dashed rgba(182, 137, 63, .3);
            position: relative;
        }

        .benefit-table thead .featured-col {
            background: rgba(182, 137, 63, .15);
        }

        .benefit-table .featured-col .badge-rec {
            position: absolute;
            top: -10px;
            right: 50%;
            transform: translateX(50%);
            background: var(--color-primary);
            color: #fff;
            font-size: 11px;
            font-weight: 600;
            border-radius: 4px;
            padding: 2px 10px;
            white-space: nowrap;
            letter-spacing: .04em;
        }

        .benefit-table i {
            font-size: 16px;
            color: var(--color-primary);
        }

        .benefit-table i.bi-dash {
            color: var(--color-weak);
        }

        .benefit-cards-mobile {
            display: none;
        }

        /* ===== Levels ===== */
        .levels-section {
            background: var(--color-dark);
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .levels-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(31, 27, 23, .95) 0%, rgba(31, 27, 23, .98) 100%);
        }

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

        .levels-section .section-header h2 {
            color: #F6F3EE;
        }

        .levels-section .section-header p {
            color: rgba(246, 243, 238, .7);
        }

        .levels-section .section-header .eyebrow {
            color: var(--color-gold-light);
        }

        .level-timeline {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .level-item {
            display: flex;
            gap: 32px;
            padding: 32px 0;
            border-bottom: 1px solid rgba(246, 243, 238, .08);
            position: relative;
        }

        .level-item:last-child {
            border-bottom: none;
        }

        .level-num {
            font-family: var(--font-serif);
            font-size: 48px;
            font-weight: 700;
            color: rgba(246, 243, 238, .18);
            line-height: 1;
            flex-shrink: 0;
            width: 80px;
            text-align: right;
            transition: color .25s;
        }

        .level-item:hover .level-num {
            color: var(--color-gold-light);
        }

        .level-line {
            width: 1px;
            background: rgba(182, 137, 63, .3);
            position: relative;
            flex-shrink: 0;
        }

        .level-line::after {
            content: '';
            position: absolute;
            top: 8px;
            left: -3px;
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--color-primary);
            transition: transform .25s;
        }

        .level-item:hover .level-line::after {
            transform: scale(1.4);
        }

        .level-info {
            flex: 1;
        }

        .level-info h3 {
            font-family: var(--font-serif);
            font-size: 22px;
            color: #F6F3EE;
            margin-bottom: 4px;
            font-weight: 700;
        }

        .level-info .level-tag {
            font-size: 12px;
            color: var(--color-gold-light);
            background: rgba(216, 184, 120, .12);
            padding: 2px 8px;
            border-radius: 4px;
            display: inline-block;
            margin-bottom: 8px;
        }

        .level-info p {
            color: rgba(246, 243, 238, .7);
            font-size: 15px;
            line-height: 1.7;
            max-width: 560px;
        }

        .level-info .level-link {
            color: var(--color-gold-light);
            font-size: 14px;
            font-weight: 500;
            margin-top: 10px;
            display: inline-block;
        }

        .level-info .level-link:hover {
            color: #fff;
        }

        /* ===== Content Preview ===== */
        .content-section {
            background: var(--color-bg);
        }

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

        .content-card {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            background: var(--color-surface);
            box-shadow: var(--shadow-card);
            transition: box-shadow .25s, transform .25s;
            display: block;
            color: inherit;
        }

        .content-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            color: inherit;
        }

        .content-card .card-media {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }

        .content-card .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        .content-card .card-media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(31, 27, 23, .55) 100%);
        }

        .content-card .card-cat {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 3;
            background: rgba(31, 27, 23, .7);
            backdrop-filter: blur(4px);
            color: var(--color-gold-light);
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 4px;
        }

        .content-card .card-body {
            padding: 20px 22px 22px;
        }

        .content-card .card-title {
            font-family: var(--font-serif);
            font-size: 18px;
            font-weight: 700;
            color: var(--color-dark);
            line-height: 1.4;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .content-card .card-desc {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }

        .content-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--color-weak);
        }

        .content-card .card-meta .lock-icon {
            color: var(--color-secondary);
            font-size: 15px;
        }

        .content-card.locked .card-media .lock-overlay {
            position: absolute;
            inset: 0;
            z-index: 4;
            background: rgba(246, 243, 238, .42);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 6px;
            transition: background .25s;
        }

        .content-card.locked .card-media .lock-overlay i {
            font-size: 32px;
            color: var(--color-secondary);
            transition: transform .25s;
        }

        .content-card.locked .card-media .lock-overlay span {
            font-size: 12px;
            color: var(--color-muted);
            background: rgba(255, 255, 255, .85);
            padding: 2px 10px;
            border-radius: 4px;
            opacity: 0;
            transition: opacity .25s;
        }

        .content-card.locked:hover .card-media .lock-overlay {
            background: rgba(246, 243, 238, .6);
        }

        .content-card.locked:hover .card-media .lock-overlay span {
            opacity: 1;
        }

        .content-card.locked:hover .card-media .lock-overlay i {
            transform: scale(1.08);
        }

        .content-card.featured {
            grid-column: span 1;
        }

        .content-card.wide {
            grid-column: span 2;
        }

        .content-card.wide .card-title {
            font-size: 21px;
        }

        /* ===== News List ===== */
        .news-section {
            background: var(--color-surface);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .news-list {
            display: flex;
            flex-direction: column;
        }

        .news-row {
            display: flex;
            align-items: center;
            gap: 24px;
            padding: 20px 0;
            border-bottom: 1px solid var(--color-border);
            transition: background .2s;
        }

        .news-row:last-child {
            border-bottom: none;
        }

        .news-row:hover {
            background: rgba(246, 243, 238, .5);
        }

        .news-row .news-date {
            font-family: var(--font-serif);
            font-size: 20px;
            font-weight: 700;
            color: var(--color-weak);
            min-width: 64px;
            line-height: 1.2;
            text-align: center;
            flex-shrink: 0;
        }

        .news-row .news-cat {
            font-size: 12px;
            color: var(--color-primary);
            background: rgba(182, 137, 63, .1);
            padding: 3px 10px;
            border-radius: 4px;
            flex-shrink: 0;
        }

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

        .news-row .news-title {
            display: block;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            line-height: 1.5;
            margin-bottom: 2px;
            transition: color .2s;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

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

        .news-row .news-excerpt {
            display: block;
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.5;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 520px;
        }

        .news-row .news-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-primary);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .empty-state {
            text-align: center;
            padding: 60px 20px;
        }

        .empty-state i {
            font-size: 44px;
            color: var(--color-weak);
            margin-bottom: 16px;
            display: block;
        }

        .empty-state p {
            font-size: 15px;
            color: var(--color-muted);
            margin-bottom: 18px;
        }

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

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

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

        .faq-item:last-child {
            border-bottom: none;
        }

        .faq-item .faq-question {
            width: 100%;
            background: transparent;
            border: none;
            padding: 22px 48px 22px 0;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-dark);
            text-align: left;
            position: relative;
            cursor: pointer;
            transition: background .2s;
            font-family: var(--font-sans);
        }

        .faq-item .faq-question:hover {
            background: rgba(246, 243, 238, .7);
        }

        .faq-item .faq-question::after {
            content: '';
            position: absolute;
            right: 16px;
            top: 50%;
            transform: translateY(-50%) rotate(135deg);
            width: 8px;
            height: 8px;
            border-right: 2px solid var(--color-muted);
            border-top: 2px solid var(--color-muted);
            transition: transform .3s, border-color .3s;
        }

        .faq-item.active .faq-question::after {
            transform: translateY(-50%) rotate(-45deg);
            border-color: var(--color-primary);
        }

        .faq-item .faq-answer {
            padding: 0 24px 22px 0;
            font-size: 15px;
            color: var(--color-muted);
            line-height: 1.7;
            display: none;
        }

        .faq-item.active .faq-answer {
            display: block;
        }

        .faq-item .faq-question:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: -2px;
            border-radius: 4px;
        }

        /* ===== Join CTA ===== */
        .join-section {
            background: var(--color-bg);
        }

        .join-panel {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 48px;
        }

        .join-panel h2 {
            font-family: var(--font-serif);
            font-size: 32px;
            font-weight: 700;
            color: var(--color-dark);
            margin-bottom: 12px;
        }

        .join-panel .join-desc {
            color: var(--color-muted);
            margin-bottom: 24px;
            max-width: 420px;
        }

        .join-features {
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
        }

        .join-features li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 0;
            font-size: 15px;
            color: var(--color-text);
        }

        .join-features li i {
            color: var(--color-primary);
            font-size: 16px;
        }

        .join-form {
            background: rgba(246, 243, 238, .5);
            border-radius: var(--radius-card);
            padding: 32px;
            border: 1px solid var(--color-border);
        }

        .join-form h3 {
            font-family: var(--font-serif);
            font-size: 22px;
            font-weight: 700;
            color: var(--color-dark);
            margin-bottom: 20px;
        }

        .plan-radio {
            display: block;
            position: relative;
            padding: 14px 16px;
            margin-bottom: 10px;
            border: 1px solid var(--color-border);
            border-radius: 8px;
            background: var(--color-surface);
            cursor: pointer;
            transition: border-color .2s, box-shadow .2s;
        }

        .plan-radio:hover {
            border-color: var(--color-primary);
        }

        .plan-radio input {
            position: absolute;
            opacity: 0;
            pointer-events: none;
        }

        .plan-radio.selected {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(182, 137, 63, .1);
        }

        .plan-radio .plan-name {
            font-weight: 600;
            font-size: 15px;
            color: var(--color-dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .plan-radio .plan-price {
            font-family: var(--font-serif);
            color: var(--color-primary);
            font-weight: 700;
            font-size: 16px;
        }

        .plan-radio .plan-desc {
            font-size: 13px;
            color: var(--color-muted);
            margin-top: 2px;
        }

        .join-form .form-group {
            margin-bottom: 16px;
        }

        .join-form .btn {
            width: 100%;
            padding: 13px;
            margin-top: 8px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-dark);
            color: rgba(246, 243, 238, .72);
            padding: 64px 0 0;
        }

        .site-footer .footer-brand .brand-main {
            color: #F6F3EE;
        }

        .site-footer .footer-brand .brand-sub {
            color: rgba(246, 243, 238, .55);
        }

        .site-footer .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(246, 243, 238, .6);
            margin-top: 16px;
            max-width: 260px;
        }

        .site-footer h5 {
            font-size: 14px;
            font-weight: 600;
            color: #F6F3EE;
            margin-bottom: 18px;
            letter-spacing: .06em;
        }

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

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

        .site-footer .footer-links a {
            color: rgba(246, 243, 238, .6);
            font-size: 14px;
            transition: color .2s;
        }

        .site-footer .footer-links a:hover {
            color: var(--color-gold-light);
        }

        .site-footer .footer-bottom {
            margin-top: 48px;
            padding: 20px 0;
            border-top: 1px solid rgba(246, 243, 238, .08);
            text-align: center;
            font-size: 13px;
            color: rgba(246, 243, 238, .45);
        }

        /* ===== Scroll Reveal ===== */
        .reveal {
            opacity: 0;
            transform: translateY(8px);
            transition: opacity .3s ease, transform .3s ease;
        }

        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation: none !important;
                transition: none !important;
            }

            .reveal {
                opacity: 1;
                transform: none;
            }

            html {
                scroll-behavior: auto;
            }
        }

        /* ===== Responsive ===== */
        @media (max-width: 991px) {
            .hero {
                min-height: auto;
                padding: 56px 0;
            }

            .hero::before {
                background: rgba(246, 243, 238, .94);
            }

            .hero-content h1 {
                font-size: 36px;
            }

            .login-card {
                margin: 32px auto 0;
            }

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

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

        @media (max-width: 768px) {
            .header-top {
                padding: 12px 0;
            }

            .header-search {
                display: none;
            }

            .header-search.mobile-open {
                display: flex;
                position: absolute;
                top: 100%;
                left: 15px;
                right: 15px;
                margin: 0;
                padding: 10px;
                background: var(--color-surface);
                border: 1px solid var(--color-border);
                border-radius: 8px;
                box-shadow: var(--shadow-card);
                z-index: 10;
            }

            .header-actions .btn-login {
                padding: 6px 14px;
                font-size: 13px;
            }

            .header-actions .btn-join {
                display: none;
            }

            .brand-main {
                font-size: 22px;
            }

            .brand-sub {
                font-size: 10px;
            }

            .nav-tabs a {
                padding: 8px 14px;
                font-size: 14px;
            }

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

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

            .hero-stats {
                gap: 20px;
            }

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

            .content-card.wide {
                grid-column: span 1;
            }

            .news-row {
                flex-wrap: wrap;
                gap: 10px;
                padding: 16px 0;
            }

            .news-row .news-date {
                font-size: 16px;
                min-width: auto;
                width: 100%;
                text-align: left;
            }

            .news-row .news-excerpt {
                white-space: normal;
            }

            .benefit-table {
                display: none;
            }

            .benefit-cards-mobile {
                display: block;
            }

            .level-item {
                gap: 16px;
                padding: 24px 0;
            }

            .level-num {
                font-size: 32px;
                width: 40px;
            }

            .join-panel {
                padding: 28px 20px;
            }

            .join-form {
                padding: 24px 18px;
                margin-top: 20px;
            }

            .site-footer {
                padding-top: 48px;
            }

            .site-footer .col-md-6 {
                margin-bottom: 32px;
            }

            .section-header {
                margin-bottom: 32px;
            }
        }

        @media (max-width: 575px) {
            .section-padding {
                padding: 48px 0;
            }

            .hero {
                padding: 40px 0;
            }

            .hero-content h1 {
                font-size: 27px;
            }

            .hero-cta .btn {
                padding: 9px 18px;
                font-size: 14px;
            }

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

            .hero-stats .stat-num {
                font-size: 26px;
            }

            .login-card {
                padding: 24px 20px;
            }

            .join-panel h2 {
                font-size: 26px;
            }

            .faq-item .faq-question {
                font-size: 15px;
                padding: 18px 40px 18px 0;
            }
        }

/* roulang page: article */
:root {
            --color-primary: #B6893F;
            --color-primary-dark: #9A7434;
            --color-secondary: #7A5B35;
            --color-bg: #F6F3EE;
            --color-surface: #FFFFFF;
            --color-ink: #1F1B17;
            --color-text: #26211C;
            --color-muted: #6B625A;
            --color-weak: #9B938A;
            --color-line: #E9E2D8;
            --color-gold-light: #D8B878;
            --color-success: #3E7C4F;
            --color-warning: #A66A2E;
            --color-error: #B4453A;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-input: 4px;
            --shadow-card: 0 2px 12px rgba(31, 27, 23, 0.05);
            --shadow-card-hover: 0 6px 20px rgba(31, 27, 23, 0.10);
            --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
            --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            -webkit-text-size-adjust: 100%;
        }

        body {
            margin: 0;
            font-family: var(--font-sans);
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.75;
            font-size: 16px;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

        button,
        input {
            font-family: inherit;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(246, 243, 238, 0.92);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid rgba(233, 226, 216, 0.8);
        }

        .header-top {
            border-bottom: 1px solid var(--color-line);
        }

        .header-top .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 20px;
        }

        .brand {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            flex-shrink: 0;
        }

        .brand-main {
            font-family: var(--font-serif);
            font-size: 22px;
            font-weight: 700;
            color: var(--color-ink);
            letter-spacing: 1px;
            line-height: 1.3;
        }

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

        .brand-sub {
            font-size: 11px;
            color: var(--color-muted);
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-top: 2px;
        }

        .header-search {
            display: flex;
            align-items: center;
            max-width: 360px;
            width: 100%;
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: 30px;
            padding: 4px 6px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .header-search:focus-within {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(182, 137, 63, 0.12);
        }

        .header-search input {
            flex: 1;
            border: none;
            background: transparent;
            padding: 6px 14px;
            font-size: 14px;
            color: var(--color-text);
            outline: none;
        }

        .header-search input::placeholder {
            color: var(--color-weak);
        }

        .header-search button {
            border: none;
            background: var(--color-primary);
            color: #fff;
            width: 34px;
            height: 34px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: background 0.2s ease;
            cursor: pointer;
        }

        .header-search button:hover {
            background: var(--color-primary-dark);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-btn);
            font-weight: 600;
            padding: 9px 22px;
            border: 1px solid transparent;
            transition: all 0.2s ease;
            font-size: 15px;
            line-height: 1.5;
        }

        .btn-sm {
            padding: 6px 16px;
            font-size: 13px;
        }

        .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);
            box-shadow: 0 6px 18px rgba(182, 137, 63, 0.25);
        }

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

        .btn-outline:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            transform: translateY(-1px);
        }

        .btn-login,
        .btn-join {
            padding: 8px 18px;
            font-size: 14px;
        }

        .header-nav {
            background: transparent;
        }

        .header-nav .container {
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .header-nav .container::-webkit-scrollbar {
            display: none;
        }

        .nav-tabs {
            display: flex;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
            min-height: 50px;
            align-items: center;
            white-space: nowrap;
        }

        .nav-tabs a {
            position: relative;
            display: inline-block;
            padding: 12px 16px;
            color: var(--color-muted);
            font-size: 15px;
            font-weight: 500;
        }

        .nav-tabs a:hover {
            color: var(--color-ink);
        }

        .nav-tabs a.active {
            color: var(--color-ink);
            font-weight: 600;
        }

        .nav-tabs a.active::after {
            content: '';
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 9px;
            height: 2px;
            background: var(--color-primary);
        }

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

        .page-banner {
            background: linear-gradient(120deg, rgba(31, 27, 23, 0.68), rgba(31, 27, 23, 0.30)), url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
            padding: 50px 0 44px;
            color: #fff;
        }

        .page-banner .crumb-path {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .page-banner .crumb-path a {
            color: rgba(255, 255, 255, 0.8);
            transition: color 0.2s ease;
        }

        .page-banner .crumb-path a:hover {
            color: #fff;
        }

        .page-banner .crumb-path .sep {
            color: rgba(255, 255, 255, 0.4);
        }

        .page-banner .crumb-path .current {
            color: #fff;
            font-weight: 500;
            max-width: 420px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .article-section {
            padding: 56px 0 72px;
        }

        .article-card {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 48px 56px;
            border: 1px solid rgba(233, 226, 216, 0.6);
        }

        .article-head {
            margin-bottom: 36px;
            border-bottom: 1px solid var(--color-line);
            padding-bottom: 28px;
        }

        .article-badge {
            display: inline-block;
            background: rgba(182, 137, 63, 0.12);
            color: var(--color-primary);
            font-size: 13px;
            padding: 4px 14px;
            border-radius: 30px;
            font-weight: 500;
            letter-spacing: 0.5px;
        }

        .article-title {
            font-family: var(--font-serif);
            font-size: 34px;
            line-height: 1.35;
            font-weight: 700;
            color: var(--color-ink);
            letter-spacing: 0.5px;
            margin: 16px 0 14px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            align-items: center;
            color: var(--color-muted);
            font-size: 14px;
        }

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

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

        .article-body {
            max-width: 720px;
            margin: 0 auto;
        }

        .article-body p,
        .article-body ul,
        .article-body ol,
        .article-body blockquote {
            color: #3A342D;
            line-height: 1.85;
            margin-bottom: 1.5rem;
        }

        .article-body p {
            font-size: 16px;
        }

        .article-body h2,
        .article-body h3 {
            font-family: var(--font-serif);
            color: var(--color-ink);
            margin-top: 2rem;
            margin-bottom: 1rem;
            line-height: 1.35;
        }

        .article-body h2 {
            font-size: 28px;
            padding-left: 14px;
            border-left: 3px solid var(--color-primary);
        }

        .article-body h3 {
            font-size: 22px;
        }

        .article-body img {
            border-radius: var(--radius-card);
            margin: 1.5rem 0;
            box-shadow: var(--shadow-card);
            width: auto;
            max-width: 100%;
        }

        .article-body a {
            color: var(--color-primary);
            text-decoration: underline;
            text-underline-offset: 4px;
        }

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

        .article-body blockquote {
            border-left: 3px solid var(--color-primary);
            background: rgba(182, 137, 63, 0.06);
            padding: 16px 24px;
            color: var(--color-muted);
            font-size: 15px;
            border-radius: 0 8px 8px 0;
        }

        .article-body ul,
        .article-body ol {
            padding-left: 1.4rem;
        }

        .article-body li {
            margin-bottom: 0.5rem;
        }

        .empty-state {
            text-align: center;
            padding: 70px 20px;
            background: var(--color-surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
        }

        .empty-state .empty-icon {
            font-size: 52px;
            color: var(--color-weak);
            margin-bottom: 18px;
        }

        .empty-state p {
            color: var(--color-muted);
            font-size: 16px;
            margin-bottom: 24px;
        }

        .related-section {
            padding-bottom: 64px;
        }

        .section-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 28px;
            gap: 16px;
            flex-wrap: wrap;
        }

        .section-title {
            font-family: var(--font-serif);
            font-size: 26px;
            font-weight: 700;
            color: var(--color-ink);
            margin: 0;
        }

        .section-title span {
            color: var(--color-primary);
        }

        .related-card {
            display: block;
            background: var(--color-surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 16px;
            transition: box-shadow 0.25s ease, transform 0.2s ease;
            height: 100%;
            border: 1px solid rgba(233, 226, 216, 0.6);
        }

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

        .cover-wrap {
            position: relative;
            border-radius: 8px;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            margin-bottom: 14px;
            background: var(--color-line);
        }

        .cover-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .related-tag {
            position: absolute;
            left: 10px;
            top: 10px;
            background: rgba(255, 255, 255, 0.92);
            color: var(--color-primary);
            font-size: 12px;
            padding: 3px 10px;
            border-radius: 30px;
            font-weight: 500;
            letter-spacing: 0.3px;
            box-shadow: 0 2px 6px rgba(31, 27, 23, 0.10);
        }

        .related-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-date {
            font-size: 12px;
            color: var(--color-weak);
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .pn-section {
            padding-bottom: 72px;
        }

        .pn-links {
            display: flex;
            justify-content: space-between;
            gap: 20px;
        }

        .pn-link {
            flex: 1;
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 18px 22px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .pn-link:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-card);
            color: inherit;
        }

        .pn-label {
            font-size: 12px;
            color: var(--color-weak);
            text-transform: uppercase;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .pn-label i {
            color: var(--color-primary);
        }

        .pn-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            margin-top: 4px;
            line-height: 1.4;
        }

        .cta-section {
            padding-bottom: 80px;
        }

        .cta-band {
            background: var(--color-ink);
            border-radius: 16px;
            padding: 48px 40px;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
        }

        .cta-band h3 {
            font-family: var(--font-serif);
            font-size: 24px;
            margin: 0 0 6px;
            color: #fff;
        }

        .cta-band p {
            color: rgba(255, 255, 255, 0.7);
            margin: 0;
            font-size: 15px;
        }

        .site-footer {
            background: var(--color-ink);
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 0;
        }

        .site-footer h5 {
            color: #fff;
            font-size: 16px;
            margin-bottom: 20px;
            font-weight: 600;
        }

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

        .footer-brand .brand-main span {
            color: var(--color-gold-light);
        }

        .footer-brand .brand-sub {
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-desc {
            margin-top: 16px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
            line-height: 1.7;
        }

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

        .footer-links li {
            margin-bottom: 12px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: color 0.2s ease;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 40px;
            padding: 20px 0;
            text-align: center;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.4);
        }

        @media (max-width: 991px) {
            .header-search {
                display: none;
            }
            .article-card {
                padding: 36px 32px;
            }
        }

        @media (max-width: 767px) {
            .header-top .container {
                min-height: 60px;
            }
            .brand-main {
                font-size: 18px;
            }
            .btn-login,
            .btn-join {
                padding: 6px 12px;
                font-size: 13px;
            }
            .page-banner {
                padding: 36px 0 30px;
            }
            .article-section {
                padding: 40px 0 56px;
            }
            .article-card {
                padding: 24px 18px;
            }
            .article-title {
                font-size: 26px;
            }
            .article-meta {
                gap: 12px;
                font-size: 13px;
            }
            .section-title {
                font-size: 22px;
            }
            .related-card {
                margin-bottom: 4px;
            }
            .pn-links {
                flex-direction: column;
            }
            .cta-section {
                padding-bottom: 56px;
            }
            .cta-band {
                padding: 32px 24px;
            }
            .cta-band h3 {
                font-size: 20px;
            }
            .site-footer {
                padding: 48px 0 0;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 18px;
                padding-right: 18px;
            }
            .header-actions {
                gap: 6px;
            }
            .btn-login,
            .btn-join {
                padding: 6px 10px;
                font-size: 12px;
            }
            .nav-tabs a {
                padding: 10px 12px;
                font-size: 14px;
            }
            .article-title {
                font-size: 23px;
            }
            .article-body h2 {
                font-size: 24px;
            }
            .article-body h3 {
                font-size: 19px;
            }
            .related-title {
                font-size: 15px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation: none !important;
                transition: none !important;
            }
            .related-card:hover {
                transform: none;
            }
            .btn:hover {
                transform: none;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #B6893F;
            --color-secondary: #7A5B35;
            --color-bg: #F6F3EE;
            --color-surface: #FFFFFF;
            --color-text: #26211C;
            --color-muted: #6B625A;
            --color-weak: #9B938A;
            --color-line: #E9E2D8;
            --color-dark: #1F1B17;
            --color-gold-light: #D8B878;
            --color-success: #3E7C4F;
            --color-warning: #A66A2E;
            --color-error: #B4453A;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-input: 4px;
            --shadow-card: 0 2px 12px rgba(31,27,23,0.05);
            --shadow-hover: 0 8px 24px rgba(31,27,23,0.10);
            --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
            --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 140px;
        }

        body {
            margin: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            background: var(--color-bg);
            color: var(--color-text);
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease, background-color .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease;
        }

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

        ul,
        ol,
        dl,
        p {
            margin: 0;
            padding: 0;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-serif);
            font-weight: 600;
            line-height: 1.3;
            color: var(--color-dark);
            margin: 0;
        }

        h1 {
            font-size: clamp(32px, 5vw, 48px);
        }

        h2 {
            font-size: clamp(24px, 3vw, 36px);
        }

        h3 {
            font-size: clamp(18px, 2vw, 22px);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .section {
            padding: 88px 0;
        }

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

        .section-index {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-serif);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: .12em;
            color: var(--color-primary);
            text-transform: uppercase;
        }

        .section-index::after {
            content: "";
            width: 36px;
            height: 1px;
            background: var(--color-primary);
            opacity: .45;
        }

        .section-head p,
        .section-head .section-desc {
            color: var(--color-muted);
            max-width: 560px;
            margin-top: 10px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-family: var(--font-sans);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.5;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            border: 1px solid transparent;
            transition: background .2s ease, color .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease;
        }

        .btn:focus-visible,
        .btn-ghost:focus-visible {
            outline: 3px solid rgba(182, 137, 63, .35);
            outline-offset: 2px;
        }

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

        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--color-secondary);
            border-color: var(--color-secondary);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(122, 91, 53, .22);
        }

        .btn-ghost {
            background: rgba(255, 255, 255, .35);
            border: 1px solid rgba(38, 33, 28, .4);
            color: var(--color-dark);
        }

        .btn-ghost:hover,
        .btn-ghost:focus {
            background: var(--color-surface);
            border-color: var(--color-primary);
            color: var(--color-primary);
            transform: translateY(-1px);
            box-shadow: var(--shadow-card);
        }

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

        .btn-outline:hover,
        .btn-outline:focus {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: rgba(182, 137, 63, .04);
            transform: translateY(-1px);
        }

        .btn-outline-light {
            background: transparent;
            border: 1px solid rgba(246, 243, 238, .7);
            color: #F6F3EE;
        }

        .btn-outline-light:hover,
        .btn-outline-light:focus {
            background: rgba(246, 243, 238, .1);
            border-color: #FFFFFF;
            color: #FFFFFF;
            transform: translateY(-1px);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1;
            padding: 6px 10px;
            border-radius: 100px;
            letter-spacing: .03em;
        }

        .badge-gold {
            background: rgba(182, 137, 63, .12);
            color: var(--color-secondary);
            border: 1px solid rgba(182, 137, 63, .26);
        }

        .badge-neutral {
            background: var(--color-line);
            color: var(--color-muted);
        }

        .icon-btn {
            width: 42px;
            height: 42px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--color-line);
            background: var(--color-surface);
            color: var(--color-dark);
            border-radius: var(--radius-btn);
            font-size: 18px;
            transition: all .2s ease;
        }

        .icon-btn:hover {
            color: var(--color-primary);
            border-color: var(--color-primary);
            background: rgba(182, 137, 63, .04);
        }

        .icon-btn:focus-visible {
            outline: 3px solid rgba(182, 137, 63, .35);
            outline-offset: 2px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(246, 243, 238, .92);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid transparent;
            transition: border-color .2s ease, box-shadow .2s ease;
        }

        .site-header.scrolled {
            border-bottom-color: var(--color-line);
            box-shadow: 0 4px 20px rgba(31, 27, 23, .04);
        }

        .header-top {
            border-bottom: 1px solid rgba(233, 226, 216, .65);
        }

        .header-top .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 16px;
        }

        .brand {
            display: inline-flex;
            flex-direction: column;
            line-height: 1.2;
            flex-shrink: 0;
        }

        .brand-main {
            font-family: var(--font-serif);
            font-size: 22px;
            font-weight: 700;
            color: var(--color-dark);
            white-space: nowrap;
        }

        .brand-main span {
            color: var(--color-primary);
            font-weight: 600;
        }

        .brand-sub {
            font-size: 11px;
            letter-spacing: .22em;
            text-transform: uppercase;
            color: var(--color-weak);
            font-weight: 600;
            margin-top: 2px;
        }

        .header-search {
            position: relative;
            width: 360px;
            max-width: 100%;
        }

        .header-search input {
            width: 100%;
            height: 42px;
            border: 1px solid var(--color-line);
            border-radius: var(--radius-input);
            background: var(--color-surface);
            padding: 0 46px 0 16px;
            font-family: var(--font-sans);
            font-size: 14px;
            color: var(--color-text);
            transition: border-color .2s ease, box-shadow .2s ease;
        }

        .header-search input:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(182, 137, 63, .14);
        }

        .header-search button {
            position: absolute;
            top: 1px;
            right: 1px;
            width: 44px;
            height: 40px;
            border: 0;
            background: transparent;
            color: var(--color-muted);
            font-size: 16px;
            border-radius: 0 var(--radius-input) var(--radius-input) 0;
            transition: color .2s ease;
        }

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

        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .header-nav .container {
            padding-top: 0;
            padding-bottom: 0;
        }

        .nav-tabs {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0;
            padding: 0;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            white-space: nowrap;
        }

        .nav-tabs::-webkit-scrollbar {
            display: none;
        }

        .nav-tabs li {
            flex-shrink: 0;
        }

        .nav-tabs a {
            display: inline-block;
            padding: 12px 16px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-muted);
            border-bottom: 2px solid transparent;
            transition: color .2s ease, border-color .2s ease, background-color .2s ease;
        }

        .nav-tabs a:hover {
            color: var(--color-dark);
        }

        .nav-tabs a:focus-visible {
            outline: none;
            border-bottom-color: var(--color-primary);
            color: var(--color-primary);
        }

        .nav-tabs a.active {
            color: var(--color-primary);
            border-bottom-color: var(--color-primary);
        }

        .nav-tabs a.cta-link {
            color: var(--color-secondary);
            font-weight: 700;
        }

        .mobile-menu {
            background: var(--color-bg);
            border-bottom: 1px solid var(--color-line);
            box-shadow: var(--shadow-hover);
        }

        .mobile-menu-inner {
            padding: 20px 8px 28px;
        }

        .mobile-nav {
            list-style: none;
            display: grid;
            gap: 4px;
            margin-bottom: 16px;
        }

        .mobile-nav a {
            display: block;
            padding: 12px 14px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
        }

        .mobile-nav a.active {
            background: rgba(182, 137, 63, .1);
            color: var(--color-primary);
        }

        .mobile-quick {
            display: grid;
            gap: 10px;
            margin-top: 16px;
        }

        .page-hero {
            position: relative;
            background: linear-gradient(120deg, #EFE8DE 0%, var(--color-bg) 55%, #F1EDE6 100%);
            border-bottom: 1px solid var(--color-line);
            overflow: hidden;
            padding: 72px 0 88px;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center right / cover no-repeat;
            opacity: .16;
            mix-blend-mode: multiply;
            pointer-events: none;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            width: 260px;
            height: 260px;
            right: -80px;
            bottom: -120px;
            border-radius: 50%;
            border: 1px solid rgba(182, 137, 63, .18);
        }

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

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-muted);
            margin-bottom: 32px;
        }

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

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

        .breadcrumb-nav .sep {
            color: var(--color-weak);
        }

        .breadcrumb-nav .current {
            color: var(--color-text);
            font-weight: 600;
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: .18em;
            text-transform: uppercase;
            color: var(--color-primary);
            margin-bottom: 20px;
        }

        .eyebrow::before {
            content: "";
            width: 22px;
            height: 1px;
            background: var(--color-primary);
            opacity: .6;
        }

        .page-hero h1 {
            margin-bottom: 18px;
        }

        .page-hero-desc {
            max-width: 620px;
            font-size: 16px;
            color: var(--color-muted);
            line-height: 1.8;
            margin-bottom: 28px;
        }

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

        .hero-aside {
            background: rgba(255, 255, 255, .85);
            border: 1px solid rgba(233, 226, 216, .9);
            border-radius: 12px;
            padding: 24px 26px;
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
        }

        .hero-aside-title {
            font-family: var(--font-serif);
            font-size: 18px;
            font-weight: 600;
            color: var(--color-dark);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .hero-aside-title i {
            color: var(--color-primary);
            font-size: 18px;
        }

        .hero-data-list div {
            display: flex;
            gap: 14px;
            padding: 12px 0;
            border-bottom: 1px dashed var(--color-line);
        }

        .hero-data-list div:last-child {
            border-bottom: none;
        }

        .hero-data-list dt {
            width: 88px;
            flex-shrink: 0;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
        }

        .hero-data-list dd {
            margin: 0;
            font-size: 14px;
            color: var(--color-text);
            line-height: 1.65;
        }

        .timeline-section {
            background: var(--color-bg);
        }

        .timeline-list {
            position: relative;
            margin-top: 8px;
        }

        .timeline-list::before {
            content: "";
            position: absolute;
            left: 7px;
            top: 10px;
            bottom: 10px;
            width: 1px;
            background: var(--color-line);
        }

        .timeline-item {
            position: relative;
            padding-left: 40px;
            padding-bottom: 36px;
        }

        .timeline-item::before {
            content: "";
            position: absolute;
            left: 1px;
            top: 9px;
            width: 13px;
            height: 13px;
            border-radius: 50%;
            border: 3px solid var(--color-primary);
            background: var(--color-bg);
            box-shadow: 0 0 0 4px rgba(182, 137, 63, .12);
        }

        .timeline-item:last-child {
            padding-bottom: 4px;
        }

        .timeline-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            margin-bottom: 8px;
        }

        .timeline-meta time {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-secondary);
            letter-spacing: .04em;
        }

        .timeline-body h3 {
            font-size: 20px;
            margin-bottom: 8px;
            color: var(--color-dark);
            transition: color .2s ease;
        }

        .timeline-body p {
            font-size: 15px;
            color: var(--color-muted);
            max-width: 780px;
            line-height: 1.75;
        }

        .read-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
            margin-top: 12px;
        }

        .read-link i {
            transition: transform .2s ease;
        }

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

        .featured-section {
            background: var(--color-surface);
            border-top: 1px solid var(--color-line);
            border-bottom: 1px solid var(--color-line);
        }

        .featured-card {
            display: block;
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow .2s ease, transform .2s ease, border-color .2s ease;
        }

        .featured-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: rgba(182, 137, 63, .35);
        }

        .featured-card-img {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--color-line);
        }

        .featured-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .3s ease;
        }

        .featured-card:hover .featured-card-img img {
            transform: scale(1.03);
        }

        .featured-card-img .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 1;
            background: rgba(255, 255, 255, .92);
            color: var(--color-secondary);
            border: 1px solid rgba(182, 137, 63, .3);
        }

        .featured-card-body {
            padding: 20px 22px 24px;
        }

        .featured-card h3 {
            font-size: 20px;
            margin-bottom: 8px;
            color: var(--color-dark);
        }

        .featured-card p {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.7;
        }

        .featured-card-footer {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-weak);
            margin-top: 14px;
        }

        .featured-card-footer i {
            color: var(--color-primary);
            margin-left: auto;
            transition: transform .2s ease;
        }

        .featured-card:hover .featured-card-footer i {
            transform: translateX(3px);
        }

        .featured-card-small {
            height: 100%;
        }

        .track-section {
            background: var(--color-bg);
        }

        .track-visual {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .track-visual img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
        }

        .track-quote {
            position: absolute;
            left: 18px;
            right: 18px;
            bottom: 18px;
            background: rgba(31, 27, 23, .8);
            backdrop-filter: blur(6px);
            border-radius: 10px;
            padding: 16px 18px;
            color: #F6F3EE;
        }

        .track-quote p {
            font-family: var(--font-serif);
            font-size: 14px;
            line-height: 1.6;
            color: #F6F3EE;
        }

        .track-quote span {
            display: inline-block;
            margin-top: 6px;
            font-size: 12px;
            letter-spacing: .08em;
            color: var(--color-gold-light);
        }

        .track-list {
            list-style: none;
            display: grid;
            gap: 26px;
            margin-top: 30px;
        }

        .track-item {
            display: flex;
            gap: 18px;
            align-items: flex-start;
            padding: 18px 0;
            border-bottom: 1px solid var(--color-line);
        }

        .track-item:last-child {
            border-bottom: none;
        }

        .track-num {
            flex-shrink: 0;
            width: 42px;
            height: 42px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-serif);
            font-size: 18px;
            font-weight: 700;
            color: var(--color-primary);
            border: 1px solid rgba(182, 137, 63, .35);
            border-radius: 50%;
            background: rgba(182, 137, 63, .05);
            transition: background .25s ease, color .25s ease, transform .25s ease;
        }

        .track-item:hover .track-num {
            background: var(--color-primary);
            color: #FFFFFF;
            transform: translateY(-2px);
        }

        .track-item h3 {
            font-size: 18px;
            margin-bottom: 6px;
        }

        .track-item p {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.7;
        }

        .cta-section {
            background: var(--color-bg);
            padding-top: 16px;
        }

        .cta-card {
            background: linear-gradient(135deg, rgba(31, 27, 23, .92), rgba(31, 27, 23, .84)), url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            border-radius: 16px;
            padding: 64px 48px;
            color: #F6F3EE;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            box-shadow: 0 18px 44px rgba(31, 27, 23, .16);
        }

        .cta-content {
            max-width: 640px;
        }

        .cta-content h2 {
            color: #F6F3EE;
            font-size: 32px;
            margin-bottom: 14px;
        }

        .cta-content p {
            color: rgba(246, 243, 238, .82);
            font-size: 15px;
            line-height: 1.8;
            max-width: 560px;
        }

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

        .btn-gold-light {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #FFFFFF;
        }

        .btn-gold-light:hover,
        .btn-gold-light:focus {
            background: var(--color-gold-light);
            border-color: var(--color-gold-light);
            color: #1F1B17;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(216, 184, 120, .25);
        }

        .faq-section {
            background: var(--color-surface);
            border-top: 1px solid var(--color-line);
        }

        .accordion-custom {
            --bs-accordion-color: var(--color-text);
            --bs-accordion-bg: transparent;
            --bs-accordion-border-width: 0;
            --bs-accordion-btn-color: var(--color-dark);
            --bs-accordion-btn-bg: transparent;
            --bs-accordion-active-color: var(--color-primary);
            --bs-accordion-active-bg: rgba(182, 137, 63, .05);
        }

        .accordion-custom .accordion-item {
            background: transparent;
            border: 0;
            border-bottom: 1px solid var(--color-line);
            border-radius: 0;
        }

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

        .accordion-custom .accordion-button {
            background: transparent;
            box-shadow: none;
            padding: 20px 8px;
            font-family: var(--font-sans);
            font-size: 16px;
            font-weight: 600;
            color: var(--color-dark);
            transition: color .2s ease, background-color .2s ease;
        }

        .accordion-custom .accordion-button:hover {
            background: rgba(246, 243, 238, .8);
            color: var(--color-primary);
        }

        .accordion-custom .accordion-button:not(.collapsed) {
            color: var(--color-primary);
            background: rgba(182, 137, 63, .04);
            box-shadow: none;
        }

        .accordion-custom .accordion-button:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(182, 137, 63, .16);
            border-radius: var(--radius-btn);
        }

        .accordion-custom .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23B6893F'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
            transition: transform .25s ease;
        }

        .accordion-custom .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
        }

        .accordion-custom .accordion-body {
            padding: 0 24px 24px;
            font-size: 15px;
            color: var(--color-muted);
            line-height: 1.75;
        }

        .site-footer {
            background: var(--color-dark);
            color: rgba(246, 243, 238, .82);
            padding: 72px 0 32px;
        }

        .site-footer .brand-main {
            color: #F6F3EE;
        }

        .site-footer .brand-main span {
            color: var(--color-gold-light);
        }

        .site-footer .brand-sub {
            color: rgba(246, 243, 238, .5);
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(246, 243, 238, .72);
            margin-top: 18px;
            max-width: 320px;
        }

        .site-footer h5 {
            color: #F6F3EE;
            font-size: 15px;
            letter-spacing: .04em;
            margin-bottom: 18px;
        }

        .footer-links {
            list-style: none;
            display: grid;
            gap: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: rgba(246, 243, 238, .72);
        }

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

        .footer-links li:last-child {
            color: rgba(246, 243, 238, .55);
            font-size: 13px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(246, 243, 238, .12);
            margin-top: 48px;
            padding-top: 24px;
            text-align: center;
            font-size: 14px;
            color: rgba(246, 243, 238, .55);
        }

        @media (max-width: 991.98px) {
            .header-search {
                display: none;
            }

            .header-top .container {
                min-height: 64px;
            }

            .header-actions .btn-login {
                display: none;
            }

            .hero-actions .btn {
                flex: 1 0 auto;
                justify-content: center;
            }

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

        @media (max-width: 767.98px) {
            body {
                font-size: 15px;
            }

            .section {
                padding: 56px 0;
            }

            .page-hero {
                padding: 44px 0 56px;
            }

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

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

            .hero-aside {
                margin-top: 24px;
                padding: 18px;
            }

            .hero-data-list div {
                flex-wrap: wrap;
                gap: 6px;
            }

            .hero-data-list dt {
                width: 100%;
            }

            .timeline-item {
                padding-left: 32px;
                padding-bottom: 28px;
            }

            .timeline-list::before {
                left: 5px;
            }

            .timeline-item::before {
                left: 0;
                width: 11px;
                height: 11px;
            }

            .timeline-body h3 {
                font-size: 18px;
            }

            .featured-card-body {
                padding: 16px 16px 20px;
            }

            .track-visual img {
                aspect-ratio: 16 / 10;
            }

            .track-quote {
                left: 12px;
                right: 12px;
                bottom: 12px;
                padding: 12px 14px;
            }

            .track-item {
                gap: 14px;
            }

            .track-num {
                width: 36px;
                height: 36px;
                font-size: 15px;
            }

            .cta-card {
                padding: 32px 20px;
                border-radius: 12px;
            }

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

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

            .footer-bottom {
                margin-top: 32px;
            }
        }

        @media (max-width: 575.98px) {
            .brand-main {
                font-size: 19px;
            }

            .brand-sub {
                font-size: 10px;
            }

            .header-actions {
                gap: 8px;
            }

            .header-actions .btn {
                padding: 8px 12px;
                font-size: 14px;
            }

            .nav-tabs a {
                padding: 11px 12px;
                font-size: 13px;
            }

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

            .track-list {
                gap: 16px;
            }

            .track-item {
                flex-direction: column;
                gap: 8px;
            }
        }

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

            *,
            *::before,
            *::after {
                animation: none !important;
                transition: none !important;
            }

            .page-hero::before,
            .page-hero::after,
            .timeline-list::before,
            .cta-card {
                transform: none;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #B6893F;
            --color-secondary: #7A5B35;
            --color-bg: #F6F3EE;
            --color-surface: #FFFFFF;
            --color-text: #26211C;
            --color-muted: #6B625A;
            --color-weak: #9B938A;
            --color-line: #E9E2D8;
            --color-dark: #1F1B17;
            --color-deep: #14110E;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-input: 4px;
            --shadow-card: 0 2px 12px rgba(31, 27, 23, 0.05);
            --shadow-hover: 0 6px 24px rgba(31, 27, 23, 0.10);
            --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
            --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, 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-text);
            line-height: 1.75;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-serif);
            color: var(--color-dark);
            line-height: 1.3;
            margin-top: 0;
        }

        p {
            margin-top: 0;
            margin-bottom: 0.8rem;
        }

        a {
            color: var(--color-secondary);
            text-decoration: none;
            transition: color .2s ease;
        }

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

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

        .container {
            max-width: 1200px;
        }

        .section {
            padding: 96px 0;
        }

        .section-head {
            max-width: 720px;
            margin-bottom: 48px;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            color: var(--color-primary);
            background: rgba(182, 137, 63, 0.12);
            padding: 4px 16px;
            border-radius: 999px;
            margin-bottom: 12px;
        }

        .section-head .section-title {
            font-size: 36px;
            margin-bottom: 12px;
        }

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

        .btn {
            border-radius: var(--radius-btn);
            padding: 10px 26px;
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.5px;
            transition: all 0.2s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            line-height: 1.5;
        }

        .btn-primary {
            background-color: var(--color-primary);
            border-color: var(--color-primary);
            color: #1F1B17;
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background-color: #A17734;
            border-color: #A17734;
            color: #1F1B17;
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(182, 137, 63, 0.25);
        }

        .btn-primary:active {
            background-color: #8D672B;
            border-color: #8D672B;
            transform: translateY(0);
            box-shadow: none;
        }

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

        .btn-outline:hover,
        .btn-outline:focus {
            border-color: var(--color-primary);
            color: var(--color-primary);
            transform: translateY(-1px);
        }

        .btn-outline-light {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.7);
            color: #fff;
        }

        .btn-outline-light:hover,
        .btn-outline-light:focus {
            border-color: var(--color-primary);
            background: var(--color-primary);
            color: #1F1B17;
            transform: translateY(-1px);
        }

        .btn:focus-visible,
        .form-control:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
            box-shadow: none;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(246, 243, 238, 0.92);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid rgba(233, 226, 216, 0.8);
        }

        .header-top .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            min-height: 72px;
            flex-wrap: nowrap;
        }

        .brand {
            display: inline-flex;
            flex-direction: column;
            line-height: 1.25;
            text-decoration: none;
            flex-shrink: 0;
        }

        .brand-main {
            font-family: var(--font-serif);
            font-size: 21px;
            font-weight: 700;
            color: var(--color-dark);
            letter-spacing: 1px;
            white-space: nowrap;
        }

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

        .brand-sub {
            font-size: 10px;
            letter-spacing: 3px;
            color: var(--color-muted);
            text-transform: uppercase;
            font-family: var(--font-sans);
        }

        .header-search {
            display: flex;
            align-items: center;
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: 999px;
            padding: 3px 3px 3px 18px;
            flex: 1;
            max-width: 380px;
            height: 40px;
            transition: border-color .2s ease, box-shadow .2s ease;
        }

        .header-search:focus-within {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(182, 137, 63, 0.12);
        }

        .header-search input {
            border: none;
            background: transparent;
            outline: none;
            flex: 1;
            font-size: 14px;
            color: var(--color-text);
            min-width: 0;
        }

        .header-search input::placeholder {
            color: var(--color-weak);
            font-size: 13px;
        }

        .header-search button {
            border: none;
            background: var(--color-primary);
            color: #1F1B17;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: background .2s ease, transform .2s ease;
            flex-shrink: 0;
        }

        .header-search button:hover {
            background: var(--color-secondary);
            color: #fff;
            transform: scale(1.04);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

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

        .header-actions .btn-login {
            border-color: var(--color-dark);
            background: transparent;
            color: var(--color-dark);
        }

        .header-actions .btn-login:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        .header-actions .btn-join {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #1F1B17;
        }

        .header-actions .btn-join:hover {
            background: #A17734;
            border-color: #A17734;
            color: #1F1B17;
        }

        .header-nav {
            border-top: 1px solid rgba(233, 226, 216, 0.7);
        }

        .nav-tabs {
            display: flex;
            gap: 2px;
            list-style: none;
            margin: 0;
            padding: 0;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            white-space: nowrap;
        }

        .nav-tabs::-webkit-scrollbar {
            display: none;
        }

        .nav-tabs a {
            display: inline-block;
            padding: 11px 18px 9px;
            font-size: 14px;
            color: var(--color-muted);
            text-decoration: none;
            border-bottom: 2px solid transparent;
            transition: color .2s ease, border-color .2s ease;
            white-space: nowrap;
        }

        .nav-tabs a:hover {
            color: var(--color-dark);
        }

        .nav-tabs a.active {
            color: var(--color-primary);
            border-bottom-color: var(--color-primary);
            font-weight: 600;
        }

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

        .page-hero {
            position: relative;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            padding: 96px 0 80px;
            color: #fff;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(110deg, rgba(20, 17, 14, 0.9) 0%, rgba(31, 27, 23, 0.55) 55%, rgba(182, 137, 63, 0.35) 100%);
        }

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

        .breadcrumb-nav {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb-nav a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: color .2s;
        }

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

        .breadcrumb-nav .sep {
            color: rgba(255, 255, 255, 0.4);
        }

        .page-hero h1 {
            font-size: 48px;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 2px;
        }

        .page-hero .lead-sub {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .step-section {
            background: var(--color-bg);
        }

        .step-timeline {
            max-width: 860px;
            margin: 0 auto;
        }

        .step-item {
            display: flex;
            gap: 30px;
            padding: 32px 0;
            border-bottom: 1px solid var(--color-line);
            position: relative;
            transition: background .2s ease;
        }

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

        .step-item:hover {
            background: rgba(182, 137, 63, 0.02);
        }

        .step-num {
            font-family: var(--font-serif);
            font-size: 46px;
            line-height: 1;
            color: var(--color-primary);
            opacity: 0.35;
            min-width: 76px;
            transition: opacity .25s ease, color .25s ease;
        }

        .step-item:hover .step-num {
            opacity: 1;
        }

        .step-body {
            padding-top: 4px;
        }

        .step-body h3 {
            font-size: 20px;
            margin-bottom: 8px;
        }

        .step-body p {
            color: var(--color-muted);
            font-size: 15px;
            margin-bottom: 0;
            max-width: 620px;
        }

        .guide-feature-section {
            background: var(--color-surface);
        }

        .guide-row {
            padding: 56px 0;
            border-bottom: 1px solid var(--color-line);
            align-items: center;
        }

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

        .guide-img-wrap {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            aspect-ratio: 4 / 3;
            background: var(--color-bg);
            transition: box-shadow .25s ease, transform .25s ease;
        }

        .guide-img-wrap:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .guide-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .guide-text {
            padding: 12px 0;
        }

        .guide-level {
            display: inline-block;
            background: rgba(182, 137, 63, 0.12);
            color: var(--color-secondary);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            padding: 4px 16px;
            border-radius: 999px;
            margin-bottom: 14px;
        }

        .guide-text h3 {
            font-size: 26px;
            margin-bottom: 12px;
        }

        .guide-text .guide-desc {
            color: var(--color-muted);
            font-size: 15px;
            margin-bottom: 18px;
            max-width: 440px;
        }

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

        .guide-list li {
            position: relative;
            padding: 7px 0 7px 30px;
            color: var(--color-text);
            font-size: 15px;
        }

        .guide-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 17px;
            width: 14px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
        }

        .flow-section {
            background: var(--color-bg);
        }

        .flow-intro {
            max-width: 420px;
        }

        .flow-intro h2 {
            font-size: 34px;
            margin-bottom: 18px;
        }

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

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

        .flow-item {
            display: flex;
            gap: 22px;
            padding: 26px 0;
            border-bottom: 1px solid var(--color-line);
            transition: background .2s ease;
        }

        .flow-item:hover {
            background: rgba(182, 137, 63, 0.03);
        }

        .flow-num {
            font-family: var(--font-serif);
            font-size: 20px;
            color: var(--color-primary);
            border: 1px solid rgba(182, 137, 63, 0.4);
            width: 46px;
            height: 46px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            background: rgba(182, 137, 63, 0.06);
            transition: background .25s ease, color .25s ease;
        }

        .flow-item:hover .flow-num {
            background: var(--color-primary);
            color: #fff;
        }

        .flow-item h3 {
            font-size: 18px;
            margin-bottom: 6px;
        }

        .flow-item p {
            color: var(--color-muted);
            font-size: 14px;
            margin-bottom: 0;
            max-width: 460px;
        }

        .faq-section {
            background: var(--color-surface);
        }

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

        .accordion {
            max-width: 820px;
            margin: 0 auto;
            border-top: 1px solid var(--color-line);
            border-bottom: 1px solid var(--color-line);
        }

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

        .accordion-item:last-child {
            border-bottom: none;
        }

        .accordion-button {
            background: transparent;
            color: var(--color-text);
            font-size: 16px;
            font-weight: 600;
            font-family: var(--font-sans);
            padding: 22px 48px 22px 0;
            box-shadow: none !important;
            border: none;
            transition: color .2s ease;
        }

        .accordion-button:hover {
            background: rgba(182, 137, 63, 0.04);
            color: var(--color-primary);
        }

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

        .accordion-button:focus {
            box-shadow: none;
            border: none;
            outline: 2px solid rgba(182, 137, 63, 0.25);
            outline-offset: 2px;
        }

        .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23B6893F'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
            background-size: 1em 1em;
            width: 1em;
            height: 1em;
            transition: transform .25s ease;
        }

        .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
        }

        .accordion-collapse {
            border: none;
        }

        .accordion-body {
            padding: 0 48px 26px 0;
            color: var(--color-muted);
            font-size: 15px;
            line-height: 1.7;
            background: transparent;
        }

        .cta-banner {
            background: var(--color-dark);
            position: relative;
            padding: 80px 0;
            color: #fff;
            overflow: hidden;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            right: -80px;
            top: -80px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            border: 1px solid rgba(182, 137, 63, 0.35);
        }

        .cta-banner::after {
            content: '';
            position: absolute;
            right: -30px;
            top: -30px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(182, 137, 63, 0.08);
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 700px;
            margin: 0 auto;
            text-align: center;
        }

        .cta-inner h2 {
            color: #fff;
            font-size: 32px;
            margin-bottom: 14px;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, 0.65);
            font-size: 16px;
            margin-bottom: 32px;
        }

        .cta-inner .btn {
            margin: 0 6px 8px;
        }

        .site-footer {
            background: var(--color-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 64px 0 32px;
        }

        .site-footer .footer-brand {
            margin-bottom: 18px;
        }

        .site-footer .brand-main {
            color: #F6F3EE;
            font-size: 20px;
        }

        .site-footer .brand-sub {
            color: rgba(255, 255, 255, 0.5);
            font-size: 10px;
        }

        .footer-desc {
            color: rgba(255, 255, 255, 0.5);
            font-size: 14px;
            line-height: 1.75;
            margin-top: 16px;
            max-width: 300px;
        }

        .site-footer h5 {
            color: #fff;
            font-family: var(--font-serif);
            font-size: 16px;
            margin-bottom: 18px;
            letter-spacing: 1px;
        }

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

        .footer-links li {
            margin-bottom: 2px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            text-decoration: none;
            line-height: 2.1;
            transition: color .2s ease, padding-left .2s ease;
        }

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

        .footer-links li:last-child {
            color: rgba(255, 255, 255, 0.45);
            font-size: 14px;
            line-height: 2.1;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 48px;
            padding-top: 24px;
            text-align: center;
            color: rgba(255, 255, 255, 0.4);
            font-size: 14px;
        }

        @media (max-width: 991.98px) {
            .section {
                padding: 72px 0;
            }

            .header-top .container {
                gap: 16px;
            }

            .header-search {
                max-width: 260px;
            }

            .brand-main {
                font-size: 18px;
            }

            .header-actions .btn {
                padding: 8px 16px;
                font-size: 13px;
            }

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

            .page-hero h1 {
                font-size: 38px;
            }

            .guide-text h3 {
                font-size: 22px;
            }

            .flow-intro {
                margin-bottom: 36px;
            }
        }

        @media (max-width: 767.98px) {
            .section {
                padding: 56px 0;
            }

            .header-top .container {
                min-height: 62px;
                flex-wrap: wrap;
            }

            .header-search {
                display: none;
            }

            .brand-main {
                font-size: 17px;
            }

            .brand-sub {
                display: none;
            }

            .header-actions {
                margin-left: auto;
            }

            .header-actions .btn-login {
                padding: 7px 14px;
                font-size: 13px;
            }

            .header-actions .btn-join {
                padding: 7px 14px;
                font-size: 13px;
            }

            .nav-tabs a {
                padding: 10px 14px 8px;
                font-size: 13px;
            }

            .page-hero {
                padding: 56px 0 48px;
            }

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

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

            .section-head .section-title {
                font-size: 24px;
            }

            .step-item {
                gap: 16px;
                padding: 24px 0;
            }

            .step-num {
                font-size: 32px;
                min-width: 50px;
            }

            .guide-row {
                padding: 32px 0;
            }

            .guide-img-wrap {
                margin-bottom: 20px;
                aspect-ratio: 16 / 10;
            }

            .flow-item {
                gap: 16px;
                padding: 20px 0;
            }

            .flow-num {
                width: 38px;
                height: 38px;
                font-size: 16px;
            }

            .accordion-button {
                padding: 18px 42px 18px 0;
                font-size: 15px;
            }

            .accordion-body {
                padding: 0 0 20px;
                font-size: 14px;
            }

            .cta-banner {
                padding: 56px 0;
            }

            .cta-inner h2 {
                font-size: 24px;
            }

            .cta-inner .btn {
                width: 100%;
                max-width: 280px;
                margin: 4px auto;
            }

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

            .footer-bottom {
                margin-top: 32px;
                text-align: center;
            }
        }

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

            .brand-main {
                font-size: 16px;
                letter-spacing: 0.5px;
            }

            .header-actions {
                gap: 6px;
            }

            .header-actions .btn {
                padding: 6px 12px;
                font-size: 12px;
            }

            .page-hero h1 {
                font-size: 28px;
            }

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

            .breadcrumb-nav {
                font-size: 12px;
            }

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

            .step-body h3 {
                font-size: 17px;
            }

            .step-body p {
                font-size: 14px;
            }

            .guide-text h3 {
                font-size: 20px;
            }

            .guide-level {
                font-size: 12px;
            }

            .flow-intro h2 {
                font-size: 26px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation: none !important;
                transition: none !important;
                scroll-behavior: auto !important;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #B6893F;
            --color-secondary: #7A5B35;
            --color-bg: #F6F3EE;
            --color-surface: #FFFFFF;
            --color-text: #26211C;
            --color-muted: #6B625A;
            --color-weak: #9B938A;
            --color-line: #E9E2D8;
            --color-dark: #1F1B17;
            --color-light-gold: #D8B878;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-input: 4px;
            --shadow-card: 0 2px 12px rgba(31,27,23,0.05);
            --shadow-card-hover: 0 8px 24px rgba(31,27,23,0.10);
            --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
            --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-sans);
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
        }

        ul,
        ol {
            margin: 0;
            padding: 0;
        }

        button {
            border: none;
            background: none;
            cursor: pointer;
            font-family: inherit;
        }

        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-serif);
            color: var(--color-dark);
            line-height: 1.3;
        }

        p {
            margin-bottom: 0;
        }

        .container {
            max-width: 1200px;
        }

        .section {
            padding: 96px 0;
        }

        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
        }

        .btn {
            border-radius: var(--radius-btn);
            font-weight: 600;
            letter-spacing: 0.5px;
            padding: 10px 22px;
            transition: all 0.2s ease;
        }

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

        .btn-primary:hover {
            background: var(--color-secondary);
            border-color: var(--color-secondary);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(182, 137, 63, 0.25);
        }

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

        .btn-outline:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            transform: translateY(-1px);
        }

        .btn-outline-light {
            border-color: rgba(255, 255, 255, 0.6);
            color: #fff;
        }

        .btn-outline-light:hover {
            border-color: var(--color-light-gold);
            color: var(--color-light-gold);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(246, 243, 238, 0.92);
            border-bottom: 1px solid transparent;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            transition: border-color 0.25s, box-shadow 0.25s;
        }

        .site-header.is-stuck {
            border-bottom-color: var(--color-line);
            box-shadow: 0 4px 16px rgba(31, 27, 23, 0.04);
        }

        .header-top .container {
            display: flex;
            align-items: center;
            gap: 28px;
            padding-top: 14px;
            padding-bottom: 14px;
        }

        .brand {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            flex-shrink: 0;
        }

        .brand-main {
            font-family: var(--font-serif);
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 1px;
            color: var(--color-dark);
            white-space: nowrap;
        }

        .brand-main span {
            color: var(--color-primary);
            margin: 0 2px;
        }

        .brand-sub {
            font-size: 11px;
            letter-spacing: 2.5px;
            color: var(--color-muted);
            text-transform: uppercase;
            margin-top: 3px;
        }

        .header-search {
            display: flex;
            align-items: center;
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: 999px;
            padding: 4px 6px 4px 16px;
            max-width: 420px;
            flex: 1;
            transition: border-color 0.2s, box-shadow 0.2s;
        }

        .header-search:focus-within {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(182, 137, 63, 0.12);
        }

        .header-search input {
            border: 0;
            outline: 0;
            background: transparent;
            flex: 1;
            font-size: 14px;
            color: var(--color-text);
            padding: 6px 0;
            min-width: 0;
        }

        .header-search input::placeholder {
            color: var(--color-weak);
        }

        .header-search button {
            width: 38px;
            height: 34px;
            border-radius: 999px;
            background: var(--color-primary);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: background 0.2s;
        }

        .header-search button:hover {
            background: var(--color-secondary);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .btn-icon {
            width: 38px;
            height: 38px;
            padding: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .search-toggle {
            display: none;
        }

        .header-nav {
            border-top: 1px solid rgba(31, 27, 23, 0.06);
        }

        .nav-tabs {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 4px;
            overflow-x: auto;
            flex-wrap: nowrap;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-tabs::-webkit-scrollbar {
            display: none;
        }

        .nav-tabs a {
            display: inline-block;
            padding: 10px 18px;
            border-radius: 999px;
            color: var(--color-muted);
            font-size: 15px;
            white-space: nowrap;
            transition: color 0.2s, background 0.2s;
        }

        .nav-tabs a:hover {
            color: var(--color-dark);
            background: var(--color-surface);
        }

        .nav-tabs a.active {
            color: var(--color-primary);
            background: rgba(182, 137, 63, 0.10);
            font-weight: 600;
        }

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

        @media (max-width: 991.98px) {
            .header-top .container {
                flex-wrap: wrap;
                gap: 12px;
            }

            .header-search {
                order: 3;
                flex-basis: 100%;
                max-width: none;
                display: none;
                padding: 6px 8px 6px 14px;
            }

            .header-search.mobile-open {
                display: flex;
            }

            .search-toggle {
                display: inline-flex;
            }

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

        @media (max-width: 575.98px) {
            .header-actions .btn-login,
            .header-actions .btn-join {
                font-size: 14px;
                padding: 7px 14px;
            }

            .brand-main {
                font-size: 18px;
            }

            .brand-sub {
                font-size: 10px;
            }
        }

        .page-banner {
            position: relative;
            padding: 88px 0 84px;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            background-color: var(--color-dark);
            color: #fff;
        }

        .page-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(31, 27, 23, 0.86), rgba(31, 27, 23, 0.58) 55%, rgba(31, 27, 23, 0.38));
        }

        .page-banner .container {
            position: relative;
            z-index: 2;
        }

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 28px;
        }

        .breadcrumb-custom a {
            color: rgba(255, 255, 255, 0.8);
            transition: color 0.2s;
        }

        .breadcrumb-custom a:hover {
            color: var(--color-light-gold);
        }

        .breadcrumb-custom .sep {
            color: rgba(255, 255, 255, 0.4);
        }

        .page-kicker {
            display: inline-block;
            font-size: 13px;
            letter-spacing: 4px;
            color: var(--color-light-gold);
            text-transform: uppercase;
            border: 1px solid rgba(216, 184, 120, 0.35);
            padding: 6px 16px;
            border-radius: 999px;
        }

        .page-banner h1 {
            font-size: 48px;
            color: #fff;
            margin: 22px 0 12px;
            letter-spacing: 3px;
        }

        .banner-desc {
            max-width: 560px;
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
        }

        @media (max-width: 768px) {
            .page-banner {
                padding: 64px 0 56px;
            }

            .page-banner h1 {
                font-size: 32px;
            }

            .banner-desc {
                font-size: 15px;
            }
        }

        .section-head {
            max-width: 720px;
            margin-bottom: 48px;
        }

        .section-kicker {
            display: inline-block;
            font-size: 13px;
            letter-spacing: 3px;
            color: var(--color-primary);
            font-weight: 600;
            margin-bottom: 12px;
            text-transform: uppercase;
        }

        .section-head h2 {
            font-size: 36px;
            margin-bottom: 14px;
        }

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

        @media (max-width: 768px) {
            .section-head {
                margin-bottom: 32px;
            }

            .section-head h2 {
                font-size: 24px;
            }
        }

        .feature-card {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .feature-card .col-lg-7 {
            display: flex;
        }

        .feature-content {
            display: flex;
            flex-direction: column;
            justify-content: center;
            padding: 52px;
        }

        .feature-content h3 {
            font-size: 26px;
            margin: 18px 0 14px;
            letter-spacing: 0.5px;
        }

        .feature-content p {
            color: var(--color-muted);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .feature-meta {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 26px;
            color: var(--color-muted);
            font-size: 14px;
        }

        .feature-meta i {
            color: var(--color-primary);
            margin-right: 4px;
        }

        .feature-card .col-lg-5 {
            display: flex;
        }

        .feature-img {
            flex: 1;
            position: relative;
            min-height: 300px;
            overflow: hidden;
        }

        .feature-img img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        @media (max-width: 991.98px) {
            .feature-content {
                padding: 32px 24px;
            }

            .feature-card .col-lg-5 {
                display: block;
            }

            .feature-img {
                aspect-ratio: 16 / 9;
                min-height: 0;
            }

            .feature-img img {
                position: static;
            }
        }

        .announcement-wrap {
            max-width: 880px;
            margin: 0 auto;
        }

        .announcement-item {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: 10px;
            margin-bottom: 16px;
            overflow: hidden;
            transition: border-color 0.2s, box-shadow 0.2s;
        }

        .announcement-item:hover {
            border-color: rgba(182, 137, 63, 0.4);
            box-shadow: var(--shadow-card-hover);
        }

        .announcement-head {
            display: flex;
            align-items: center;
            gap: 18px;
            width: 100%;
            padding: 24px 28px;
            text-align: left;
            background: transparent;
            color: var(--color-text);
            transition: background 0.2s;
        }

        .announcement-head:hover {
            background: rgba(246, 243, 238, 0.6);
        }

        .announcement-date {
            flex: none;
            width: 58px;
            text-align: center;
            border-right: 1px solid var(--color-line);
            margin-right: 2px;
            padding-right: 14px;
        }

        .announcement-date .day {
            display: block;
            font-size: 22px;
            font-weight: 700;
            font-family: var(--font-serif);
            color: var(--color-dark);
            line-height: 1;
        }

        .announcement-date .month {
            display: block;
            font-size: 12px;
            color: var(--color-weak);
            margin-top: 4px;
        }

        .announcement-main {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
            min-width: 0;
        }

        .announcement-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-dark);
            transition: color 0.2s;
            line-height: 1.45;
        }

        .announcement-sub {
            font-size: 14px;
            color: var(--color-muted);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .announcement-head .icon {
            flex: none;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            border: 1px solid var(--color-line);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--color-muted);
            transition: all 0.25s;
        }

        .announcement-head[aria-expanded="true"] .icon {
            transform: rotate(180deg);
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        .announcement-body {
            padding: 0 28px 26px 108px;
            color: var(--color-muted);
            font-size: 15px;
            line-height: 1.8;
        }

        .announcement-body p {
            margin-bottom: 0;
        }

        .badge-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: rgba(182, 137, 63, 0.12);
            color: var(--color-primary);
            border-radius: 999px;
            padding: 3px 10px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.4px;
            width: fit-content;
        }

        .badge-tag.tag-pinned {
            background: var(--color-primary);
            color: #fff;
        }

        @media (max-width: 767px) {
            .announcement-head {
                flex-wrap: wrap;
                gap: 12px;
                padding: 18px;
            }

            .announcement-date {
                width: auto;
                border-right: 0;
                padding: 0 12px 0 0;
                text-align: left;
            }

            .announcement-title {
                font-size: 15px;
            }

            .announcement-sub {
                white-space: normal;
            }

            .announcement-body {
                padding: 0 18px 20px;
            }

            .announcement-head .icon {
                display: none;
            }
        }

        .metrics-section {
            padding-top: 0;
        }

        .metrics-band {
            background: var(--color-dark);
            border-radius: 16px;
            padding: 48px 40px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }

        .metric-item {
            border-left: 1px solid rgba(216, 184, 120, 0.2);
            padding-left: 28px;
        }

        .metric-item strong {
            display: block;
            font-family: var(--font-serif);
            font-size: 32px;
            font-weight: 700;
            color: var(--color-light-gold);
            line-height: 1.3;
            margin-bottom: 8px;
        }

        .metric-item span {
            font-size: 14px;
            color: rgba(246, 243, 238, 0.68);
            line-height: 1.6;
        }

        @media (max-width: 991.98px) {
            .metrics-band {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px 20px;
            }
        }

        @media (max-width: 575.98px) {
            .metrics-band {
                grid-template-columns: 1fr;
                padding: 36px 24px;
                gap: 24px;
            }

            .metric-item {
                border-left: 0;
                border-top: 1px solid rgba(216, 184, 120, 0.2);
                padding: 20px 0 0;
            }

            .metric-item:first-child {
                border-top: 0;
                padding-top: 0;
            }
        }

        .cta-section {
            padding-top: 0;
        }

        .cta-inner {
            background: rgba(182, 137, 63, 0.08);
            border: 1px solid rgba(182, 137, 63, 0.22);
            border-radius: 16px;
            padding: 52px 56px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
        }

        .cta-text h2 {
            font-size: 30px;
            margin-bottom: 10px;
        }

        .cta-text p {
            color: var(--color-muted);
            max-width: 480px;
        }

        .cta-actions {
            display: flex;
            gap: 12px;
            flex-shrink: 0;
            flex-wrap: wrap;
        }

        @media (max-width: 991.98px) {
            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
                padding: 36px 28px;
            }
        }

        .site-footer {
            background: var(--color-dark);
            color: rgba(246, 243, 238, 0.78);
            padding: 72px 0 0;
        }

        .site-footer .brand .brand-main {
            color: #F6F3EE;
        }

        .site-footer .brand-sub {
            color: rgba(246, 243, 238, 0.5);
        }

        .footer-desc {
            max-width: 320px;
            color: rgba(246, 243, 238, 0.65);
            margin-top: 16px;
            font-size: 14px;
            line-height: 1.8;
        }

        .site-footer h5 {
            color: #F6F3EE;
            font-size: 16px;
            margin-bottom: 18px;
            font-weight: 600;
        }

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

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

        .footer-links a {
            color: rgba(246, 243, 238, 0.65);
            font-size: 14px;
            transition: color 0.2s, padding-left 0.2s;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 48px;
            padding: 24px 0;
            text-align: center;
            font-size: 14px;
            color: rgba(246, 243, 238, 0.5);
        }

        .reveal {
            opacity: 0;
            transform: translateY(8px);
            transition: opacity 0.3s ease, transform 0.3s ease;
        }

        .reveal.visible {
            opacity: 1;
            transform: none;
        }

        @media (prefers-reduced-motion: reduce) {
            * {
                transition: none !important;
                animation: none !important;
                scroll-behavior: auto !important;
            }

            .reveal {
                opacity: 1;
                transform: none;
            }
        }