/* roulang page: index */
:root {
            --c-primary: #162B3B;
            --c-primary-light: #1F3D54;
            --c-accent: #C9A24B;
            --c-accent-hover: #B38E3A;
            --c-alert: #D4542C;
            --c-bg: #F7F5F0;
            --c-bg-white: #FFFFFF;
            --c-text: #1C1C1C;
            --c-text-secondary: #5C5A54;
            --c-border: #E2DDD3;
            --c-footer-bg: #0F1E2A;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-card: 0 1px 3px rgba(22,43,59,0.06), 0 4px 16px rgba(22,43,59,0.06);
            --shadow-hover: 0 8px 24px rgba(22,43,59,0.14);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "Helvetica Neue", Arial, sans-serif;
            --container-max: 1200px;
            --nav-height: 68px;
            --nav-height-mobile: 56px;
            --section-pad: 72px;
            --section-pad-mobile: 40px;
            --transition-base: 200ms ease;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.8;
            color: var(--c-text);
            background-color: var(--c-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

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

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ========== 通用按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .btn:focus-visible {
            outline: 2px solid var(--c-accent);
            outline-offset: 3px;
        }
        .btn:active {
            transform: translateY(0);
        }

        .btn-primary {
            background-color: var(--c-accent);
            color: #fff;
        }
        .btn-primary:hover {
            background-color: var(--c-accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(201,162,75,0.35);
        }

        .btn-secondary {
            background-color: #fff;
            color: var(--c-primary);
            border: 1px solid var(--c-primary);
        }
        .btn-secondary:hover {
            background-color: var(--c-primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-outline-light {
            background-color: transparent;
            color: #fff;
            border: 1px solid rgba(255,255,255,0.65);
        }
        .btn-outline-light:hover {
            background-color: #fff;
            color: var(--c-primary);
            transform: translateY(-2px);
        }

        .btn-block {
            display: flex;
            width: 100%;
        }

        /* ========== 标签/徽章 ========== */
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.02em;
            line-height: 1.5;
        }
        .badge-gold {
            background-color: rgba(201,162,75,0.14);
            color: var(--c-accent-hover);
        }
        .badge-dark {
            background-color: rgba(22,43,59,0.06);
            color: var(--c-primary);
        }
        .badge-alert {
            background-color: rgba(212,84,44,0.1);
            color: var(--c-alert);
        }
        .badge-white {
            background-color: rgba(255,255,255,0.16);
            color: #fff;
        }

        /* ========== Header/Nav ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--nav-height);
            background-color: rgba(255,255,255,0.97);
            z-index: 1000;
            transition: box-shadow 300ms ease, background-color 300ms ease;
        }
        .site-header.scrolled {
            box-shadow: 0 2px 8px rgba(22,43,59,0.08);
            background-color: #fff;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--c-accent);
            font-weight: 700;
            font-size: 18px;
            letter-spacing: -0.02em;
        }
        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--c-primary);
            letter-spacing: 0.01em;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 26px;
        }
        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--c-primary);
            padding: 6px 2px;
            border-bottom: 2px solid transparent;
            transition: color var(--transition-base), border-color var(--transition-base);
            position: relative;
        }
        .main-nav a:hover {
            color: var(--c-accent-hover);
        }
        .main-nav a.active {
            color: var(--c-accent-hover);
            border-bottom-color: var(--c-accent);
        }
        .nav-cta {
            flex-shrink: 0;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 28px;
            padding: 4px 0;
            background: none;
        }
        .hamburger span {
            display: block;
            width: 100%;
            height: 2px;
            background-color: var(--c-primary);
            border-radius: 2px;
            transition: all 300ms ease;
        }
        .hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            width: 100%;
            background-color: var(--c-primary);
            z-index: 999;
            padding: 24px 24px 36px;
            flex-direction: column;
            gap: 4px;
            transform: translateY(-8px);
            opacity: 0;
            pointer-events: none;
            transition: opacity 250ms ease, transform 250ms ease;
        }
        .mobile-menu.open {
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }
        .mobile-menu a {
            display: block;
            color: #fff;
            font-size: 16px;
            font-weight: 500;
            padding: 14px 8px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
            transition: color var(--transition-base), padding-left var(--transition-base);
        }
        .mobile-menu a:hover {
            color: var(--c-accent);
            padding-left: 16px;
        }
        .mobile-menu .btn {
            margin-top: 16px;
        }

        /* ========== Hero ========== */
        .hero {
            padding-top: calc(var(--nav-height) + 40px);
            padding-bottom: var(--section-pad);
            background-color: var(--c-bg);
            background-image: linear-gradient(135deg, rgba(247,245,240,0.92) 0%, rgba(247,245,240,0.82) 100%), url('/assets/images/07476d73b4bb2c87.webp');
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .hero .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .hero-content {
            display: flex;
            flex-direction: column;
            gap: 20px;
            align-items: flex-start;
        }
        .hero-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .hero h1 {
            font-size: 38px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--c-primary);
            letter-spacing: -0.01em;
        }
        .hero h1 .highlight {
            color: var(--c-accent-hover);
        }
        .hero-subtitle {
            font-size: 17px;
            color: var(--c-text-secondary);
            line-height: 1.75;
            max-width: 540px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 8px;
        }
        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 12px;
            padding-top: 18px;
            border-top: 1px solid var(--c-border);
        }
        .hero-trust-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .hero-trust-item .t-num {
            font-family: var(--font-num);
            font-size: 22px;
            font-weight: 700;
            color: var(--c-accent-hover);
        }
        .hero-trust-item .t-label {
            font-size: 12px;
            color: var(--c-text-secondary);
        }

        .hero-visual {
            position: relative;
            min-height: 380px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background-color: rgba(22,43,59,0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-card);
        }
        .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }
        .hero-visual-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 24px 28px;
            background: linear-gradient(transparent, rgba(15,30,42,0.85));
            color: #fff;
            border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            pointer-events: none;
        }
        .hero-visual-overlay span {
            font-size: 14px;
            font-weight: 500;
        }

        /* ========== Section 通用 ========== */
        .section {
            padding-top: var(--section-pad);
            padding-bottom: var(--section-pad);
            background-color: var(--c-bg);
        }
        .section-white {
            background-color: var(--c-bg-white);
        }
        .section-alt {
            background-color: var(--c-bg);
            border-top: 1px solid var(--c-border);
            border-bottom: 1px solid var(--c-border);
        }
        .section-dark {
            background-color: var(--c-primary);
            color: #fff;
        }

        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 48px;
        }
        .section-head.left {
            text-align: left;
            margin-left: 0;
        }
        .section-head .badge {
            margin-bottom: 14px;
        }
        .section-head h2 {
            font-size: 28px;
            font-weight: 600;
            line-height: 1.3;
            color: var(--c-primary);
            margin-bottom: 12px;
        }
        .section-dark .section-head h2 {
            color: #fff;
        }
        .section-head p {
            font-size: 15px;
            color: var(--c-text-secondary);
            line-height: 1.75;
        }
        .section-dark .section-head p {
            color: rgba(255,255,255,0.72);
        }

        /* ========== 数据指标带 ========== */
        .metrics-strip {
            background-color: var(--c-bg-white);
            border-top: 1px solid var(--c-border);
            border-bottom: 1px solid var(--c-border);
            padding: 40px 0;
        }
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }
        .metric-item {
            text-align: center;
            padding: 8px 12px;
        }
        .metric-num {
            font-family: var(--font-num);
            font-size: 40px;
            font-weight: 700;
            color: var(--c-accent-hover);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .metric-label {
            font-size: 13px;
            color: var(--c-text-secondary);
        }

        /* ========== 场景/产品入口 ========== */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .scene-card {
            background-color: var(--c-bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--c-border);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 12px;
            position: relative;
            overflow: hidden;
        }
        .scene-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: var(--c-accent);
        }
        .scene-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background-color: rgba(201,162,75,0.14);
            color: var(--c-accent-hover);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 700;
        }
        .scene-card h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--c-primary);
            line-height: 1.35;
        }
        .scene-card p {
            font-size: 14px;
            color: var(--c-text-secondary);
            line-height: 1.7;
            flex-grow: 1;
        }
        .scene-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--c-accent-hover);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition-base);
        }
        .scene-card:hover .scene-link {
            gap: 10px;
        }

        /* ========== 流程步骤 ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }
        .steps-grid::before {
            content: '';
            position: absolute;
            top: 28px;
            left: 12%;
            right: 12%;
            border-top: 2px dashed var(--c-border);
            z-index: 0;
        }
        .step-item {
            text-align: center;
            position: relative;
            z-index: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 12px;
        }
        .step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background-color: var(--c-accent);
            color: #fff;
            font-family: var(--font-num);
            font-size: 22px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(201,162,75,0.3);
        }
        .step-item h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--c-primary);
        }
        .step-item p {
            font-size: 13px;
            color: var(--c-text-secondary);
            line-height: 1.65;
            max-width: 220px;
        }

        /* ========== 费率/杠杆参数卡片 ========== */
        .rate-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
            align-items: stretch;
        }
        .rate-card {
            background-color: var(--c-bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--c-border);
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
            gap: 16px;
            position: relative;
            transition: all var(--transition-base);
        }
        .rate-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .rate-card.featured {
            border-color: var(--c-accent);
            box-shadow: 0 4px 20px rgba(201,162,75,0.18);
        }
        .rate-card .rate-badge {
            position: absolute;
            top: -12px;
            right: 20px;
            background-color: var(--c-accent);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
        }
        .rate-card h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--c-primary);
        }
        .rate-card .rate-price {
            font-family: var(--font-num);
            font-size: 34px;
            font-weight: 700;
            color: var(--c-accent-hover);
            line-height: 1.2;
        }
        .rate-card ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex-grow: 1;
        }
        .rate-card ul li {
            font-size: 14px;
            color: var(--c-text-secondary);
            padding-left: 20px;
            position: relative;
            line-height: 1.6;
        }
        .rate-card ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 8px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--c-accent);
        }
        .rate-note {
            font-size: 12px;
            color: var(--c-text-secondary);
            text-align: center;
            margin-top: 18px;
            font-style: normal;
        }

        /* ========== 风控体系 ========== */
        .risk-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
        }
        .risk-item {
            background-color: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.12);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            transition: background-color var(--transition-base);
        }
        .risk-item:hover {
            background-color: rgba(255,255,255,0.1);
        }
        .risk-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background-color: rgba(201,162,75,0.25);
            color: var(--c-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
        }
        .risk-item h3 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
        }
        .risk-item p {
            font-size: 13px;
            color: rgba(255,255,255,0.7);
            line-height: 1.65;
        }

        /* ========== 计算器入口 ========== */
        .calc-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            background-color: var(--c-bg-white);
            border-radius: var(--radius-lg);
            padding: 36px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--c-border);
        }
        .calc-form {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }
        .calc-field label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--c-primary);
            margin-bottom: 6px;
        }
        .calc-field input,
        .calc-field select {
            width: 100%;
            height: 44px;
            border: 1px solid var(--c-border);
            border-radius: var(--radius-sm);
            padding: 0 14px;
            font-size: 15px;
            color: var(--c-text);
            background-color: var(--c-bg);
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }
        .calc-field input:focus,
        .calc-field select:focus {
            outline: none;
            border-color: var(--c-accent);
            box-shadow: 0 0 0 3px rgba(201,162,75,0.18);
        }
        .calc-result {
            background-color: var(--c-bg);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 12px;
            text-align: center;
        }
        .calc-result .result-label {
            font-size: 13px;
            color: var(--c-text-secondary);
        }
        .calc-result .result-num {
            font-family: var(--font-num);
            font-size: 42px;
            font-weight: 700;
            color: var(--c-primary);
            line-height: 1.2;
        }
        .calc-result .result-num small {
            font-size: 16px;
            font-weight: 500;
            color: var(--c-text-secondary);
        }
        .calc-note {
            font-size: 12px;
            color: var(--c-text-secondary);
            margin-top: 12px;
            text-align: right;
        }

        /* ========== 资讯列表 ========== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .news-card {
            background-color: var(--c-bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--c-border);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: var(--c-accent);
        }
        .news-card-img {
            width: 100%;
            aspect-ratio: 16/9;
            overflow: hidden;
            background-color: rgba(22,43,59,0.06);
        }
        .news-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .news-card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex-grow: 1;
        }
        .news-card-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .news-card-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--c-primary);
            line-height: 1.45;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card-excerpt {
            font-size: 13px;
            color: var(--c-text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex-grow: 1;
        }
        .news-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--c-text-secondary);
        }
        .news-empty {
            grid-column: 1 / -1;
            background-color: var(--c-bg-white);
            border-radius: var(--radius-lg);
            padding: 48px 24px;
            text-align: center;
            color: var(--c-text-secondary);
            font-size: 15px;
            border: 1px dashed var(--c-border);
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            background-color: var(--c-bg-white);
            border: 1px solid var(--c-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--c-accent);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--c-primary);
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
        }
        .faq-question .faq-arrow {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background-color: var(--c-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--c-primary);
            font-size: 14px;
            transition: transform 200ms ease;
        }
        .faq-item.open .faq-question .faq-arrow {
            transform: rotate(45deg);
        }
        .faq-answer {
            padding: 0 22px 18px;
            font-size: 14px;
            color: var(--c-text-secondary);
            line-height: 1.75;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
            animation: faqFadeIn 200ms ease;
        }
        @keyframes faqFadeIn {
            from { opacity: 0; transform: translateY(-4px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* ========== 用户口碑 ========== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .testimonial-card {
            background-color: var(--c-bg-white);
            border: 1px solid var(--c-border);
            border-radius: var(--radius-lg);
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }
        .testimonial-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .testimonial-stars {
            color: var(--c-accent);
            font-size: 16px;
            letter-spacing: 2px;
        }
        .testimonial-text {
            font-size: 14px;
            color: var(--c-text);
            line-height: 1.75;
            flex-grow: 1;
        }
        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
            padding-top: 12px;
            border-top: 1px solid var(--c-border);
        }
        .testimonial-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background-color: rgba(22,43,59,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--c-primary);
            font-weight: 600;
            font-size: 14px;
            flex-shrink: 0;
        }
        .testimonial-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--c-primary);
        }
        .testimonial-scene {
            font-size: 12px;
            color: var(--c-text-secondary);
        }

        /* ========== 合作机构 ========== */
        .partners-row {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .partner-item {
            min-width: 160px;
            flex: 0 0 auto;
            background-color: rgba(22,43,59,0.05);
            border-radius: var(--radius-md);
            padding: 20px 28px;
            text-align: center;
            font-size: 15px;
            font-weight: 600;
            color: var(--c-primary);
            letter-spacing: 0.05em;
        }

        /* ========== 底部 CTA ========== */
        .cta-section {
            background-color: var(--c-primary);
            color: #fff;
            padding-top: var(--section-pad);
            padding-bottom: var(--section-pad);
            text-align: center;
            background-image: linear-gradient(135deg, rgba(22,43,59,0.92) 0%, rgba(15,30,42,0.95) 100%), url('/assets/images/cbe43fd774caf959.webp');
            background-size: cover;
            background-position: center;
        }
        .cta-section h2 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 14px;
            color: #fff;
        }
        .cta-section p {
            font-size: 16px;
            color: rgba(255,255,255,0.8);
            line-height: 1.75;
            max-width: 620px;
            margin: 0 auto 28px;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }

        /* ========== 风险提示条 ========== */
        .risk-strip {
            background-color: #FFF8F4;
            border: 1px solid rgba(212,84,44,0.2);
            padding: 16px 24px;
            border-radius: var(--radius-md);
            font-size: 13px;
            color: var(--c-text-secondary);
            line-height: 1.7;
            max-width: 900px;
            margin: 0 auto;
        }
        .risk-strip strong {
            color: var(--c-alert);
            font-weight: 600;
        }

        /* ========== Footer ========== */
        .site-footer {
            background-color: var(--c-footer-bg);
            color: rgba(255,255,255,0.75);
            padding-top: 56px;
            padding-bottom: 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 36px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(255,255,255,0.55);
            max-width: 280px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul a {
            font-size: 13px;
            color: rgba(255,255,255,0.55);
            transition: color var(--transition-base);
        }
        .footer-col ul a:hover {
            color: var(--c-accent);
        }
        .footer-col ul li {
            font-size: 13px;
            color: rgba(255,255,255,0.55);
            line-height: 1.6;
        }
        .footer-bottom {
            padding-top: 20px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            text-align: center;
        }
        .footer-bottom .copyright {
            font-size: 12px;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom .copyright a {
            color: rgba(255,255,255,0.55);
        }
        .footer-bottom .copyright a:hover {
            color: var(--c-accent);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .main-nav {
                gap: 16px;
            }
            .main-nav a {
                font-size: 14px;
            }
            .hero .container {
                gap: 32px;
            }
            .hero h1 {
                font-size: 30px;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .scene-grid,
            .rate-grid,
            .news-grid,
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
            .steps-grid::before {
                display: none;
            }
            .risk-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .calc-wrapper {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-pad: 48px;
            }
            .main-nav {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-menu {
                display: flex;
            }
            .hero {
                padding-top: calc(var(--nav-height-mobile) + 28px);
                padding-bottom: var(--section-pad-mobile);
            }
            .hero .container {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .hero h1 {
                font-size: 26px;
            }
            .hero-visual {
                min-height: 240px;
            }
            .section {
                padding-top: var(--section-pad-mobile);
                padding-bottom: var(--section-pad-mobile);
            }
            .cta-section {
                padding-top: var(--section-pad-mobile);
                padding-bottom: var(--section-pad-mobile);
            }
            .section-head {
                margin-bottom: 32px;
            }
            .section-head h2 {
                font-size: 22px;
            }
            .scene-grid,
            .rate-grid,
            .news-grid,
            .testimonial-grid,
            .risk-grid,
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .metric-num {
                font-size: 30px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .partners-row {
                gap: 10px;
            }
            .partner-item {
                min-width: 120px;
                padding: 14px 18px;
                font-size: 13px;
            }
            .calc-wrapper {
                padding: 20px;
            }
            .hero-actions {
                width: 100%;
            }
            .hero-actions .btn {
                flex: 1;
                justify-content: center;
            }
            .cta-actions .btn {
                flex: 1;
                min-width: 140px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero h1 {
                font-size: 22px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
            }
            .metric-num {
                font-size: 26px;
            }
            .metric-label {
                font-size: 11px;
            }
            .rate-card {
                padding: 20px;
            }
            .rate-card .rate-price {
                font-size: 28px;
            }
            .step-num {
                width: 44px;
                height: 44px;
                font-size: 18px;
            }
            .news-card-body {
                padding: 16px;
            }
            .testimonial-card {
                padding: 18px;
            }
            .footer-bottom {
                text-align: left;
            }
        }

/* roulang page: article */
:root {
            --c-primary: #162B3B;
            --c-primary-light: #1F3D54;
            --c-accent: #C9A24B;
            --c-accent-hover: #B38E3A;
            --c-alert: #D4542C;
            --c-bg: #F7F5F0;
            --c-bg-white: #FFFFFF;
            --c-text: #1C1C1C;
            --c-text-secondary: #5C5A54;
            --c-border: #E2DDD3;
            --c-footer-bg: #0F1E2A;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-card: 0 1px 3px rgba(22,43,59,0.06), 0 4px 16px rgba(22,43,59,0.06);
            --shadow-hover: 0 8px 24px rgba(22,43,59,0.14);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "Helvetica Neue", Arial, sans-serif;
            --container-max: 1200px;
            --nav-height: 68px;
            --nav-height-mobile: 56px;
            --section-pad: 72px;
            --section-pad-mobile: 40px;
            --transition-base: 200ms ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.8;
            color: var(--c-text);
            background-color: var(--c-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .btn:focus-visible {
            outline: 2px solid var(--c-accent);
            outline-offset: 3px;
        }
        .btn:active {
            transform: translateY(0);
        }
        .btn-primary {
            background-color: var(--c-accent);
            color: #fff;
        }
        .btn-primary:hover {
            background-color: var(--c-accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(201,162,75,0.35);
        }
        .btn-secondary {
            background-color: #fff;
            color: var(--c-primary);
            border: 1px solid var(--c-primary);
        }
        .btn-secondary:hover {
            background-color: var(--c-primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline-light {
            background-color: transparent;
            color: #fff;
            border: 1px solid rgba(255,255,255,0.65);
        }
        .btn-outline-light:hover {
            background-color: #fff;
            color: var(--c-primary);
            transform: translateY(-2px);
        }
        .btn-block {
            display: flex;
            width: 100%;
        }

        /* ========== 标签/徽章 ========== */
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.02em;
            line-height: 1.5;
        }
        .badge-gold {
            background-color: rgba(201,162,75,0.14);
            color: var(--c-accent-hover);
        }
        .badge-dark {
            background-color: rgba(22,43,59,0.06);
            color: var(--c-primary);
        }
        .badge-alert {
            background-color: rgba(212,84,44,0.1);
            color: var(--c-alert);
        }

        /* ========== Header/Nav ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--nav-height);
            background-color: rgba(255,255,255,0.97);
            z-index: 1000;
            transition: box-shadow 300ms ease, background-color 300ms ease;
        }
        .site-header.scrolled {
            box-shadow: 0 2px 8px rgba(22,43,59,0.08);
            background-color: #fff;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--c-accent);
            font-weight: 700;
            font-size: 18px;
            letter-spacing: -0.02em;
        }
        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--c-primary);
            letter-spacing: 0.01em;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--c-text-secondary);
            padding: 6px 0;
            position: relative;
            transition: color var(--transition-base);
        }
        .main-nav a:hover {
            color: var(--c-accent);
        }
        .main-nav a.active {
            color: var(--c-primary);
            font-weight: 600;
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--c-accent);
            border-radius: 1px;
        }
        .nav-cta {
            flex-shrink: 0;
        }
        .nav-cta .btn {
            padding: 10px 22px;
            font-size: 14px;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
        }
        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--c-primary);
            border-radius: 2px;
            transition: all 300ms ease;
        }
        .hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-wrap {
            padding-top: calc(var(--nav-height) + 28px);
            padding-bottom: 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            list-style: none;
            font-size: 13px;
            color: var(--c-text-secondary);
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .breadcrumb li + li::before {
            content: '>';
            color: var(--c-border);
            font-weight: 400;
        }
        .breadcrumb a {
            color: var(--c-text-secondary);
            transition: color var(--transition-base);
        }
        .breadcrumb a:hover {
            color: var(--c-accent);
        }
        .breadcrumb .current {
            color: var(--c-primary);
            font-weight: 500;
        }

        /* ========== 文章主体 ========== */
        .article-layout {
            padding-top: 28px;
            padding-bottom: 56px;
        }
        .article-main {
            background-color: var(--c-bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }

        /* 文章头部 */
        .article-hero {
            padding: 40px 48px 0;
        }
        .article-hero .badge {
            margin-bottom: 16px;
        }
        .article-hero h1 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--c-primary);
            margin-bottom: 16px;
        }
        .article-hero .article-excerpt {
            font-size: 16px;
            line-height: 1.75;
            color: var(--c-text-secondary);
            margin-bottom: 20px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--c-border);
            font-size: 13px;
            color: var(--c-text-secondary);
        }
        .article-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta .meta-icon {
            width: 16px;
            height: 16px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--c-accent);
            font-weight: 700;
            font-size: 12px;
        }

        /* 文章封面图 */
        .article-cover {
            margin: 24px 48px 0;
            border-radius: var(--radius-md);
            overflow: hidden;
            background-color: #f0ede8;
            aspect-ratio: 16 / 8;
        }
        .article-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* 正文阅读区 */
        .article-body {
            padding: 32px 48px 48px;
            font-size: 16px;
            line-height: 1.85;
            color: var(--c-text);
        }
        .article-body h2 {
            font-size: 24px;
            font-weight: 600;
            line-height: 1.35;
            color: var(--c-primary);
            margin-top: 36px;
            margin-bottom: 16px;
            padding-left: 14px;
            border-left: 3px solid var(--c-accent);
        }
        .article-body h3 {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--c-primary);
            margin-top: 28px;
            margin-bottom: 12px;
        }
        .article-body p {
            margin-bottom: 18px;
        }
        .article-body ul,
        .article-body ol {
            margin-bottom: 18px;
            padding-left: 24px;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body blockquote {
            margin: 24px 0;
            padding: 16px 24px;
            background-color: rgba(201,162,75,0.06);
            border-left: 3px solid var(--c-accent);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--c-primary);
            font-size: 15px;
            line-height: 1.7;
        }
        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 14px;
        }
        .article-body table th,
        .article-body table td {
            padding: 12px 16px;
            border: 1px solid var(--c-border);
            text-align: left;
        }
        .article-body table th {
            background-color: rgba(22,43,59,0.04);
            color: var(--c-primary);
            font-weight: 600;
        }
        .article-body img {
            border-radius: var(--radius-md);
            margin: 20px auto;
        }
        .article-body .article-not-found {
            text-align: center;
            padding: 60px 20px;
        }
        .article-body .article-not-found .nf-icon {
            font-size: 48px;
            color: var(--c-border);
            margin-bottom: 16px;
        }
        .article-body .article-not-found p {
            color: var(--c-text-secondary);
            font-size: 16px;
            margin-bottom: 20px;
        }

        /* 文章底部风险提示 */
        .article-risk-note {
            margin: 0 48px 40px;
            padding: 14px 20px;
            background-color: rgba(212,84,44,0.05);
            border: 1px solid rgba(212,84,44,0.18);
            border-radius: var(--radius-sm);
            font-size: 13px;
            line-height: 1.7;
            color: var(--c-alert);
        }

        /* 上一篇/下一篇 */
        .article-pager {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            padding: 0 48px 40px;
        }
        .pager-item {
            display: block;
            padding: 18px 20px;
            background-color: rgba(22,43,59,0.03);
            border-radius: var(--radius-sm);
            border: 1px solid var(--c-border);
            transition: all var(--transition-base);
        }
        .pager-item:hover {
            border-color: var(--c-accent);
            background-color: rgba(201,162,75,0.06);
            transform: translateY(-2px);
        }
        .pager-item .pager-label {
            font-size: 12px;
            font-weight: 500;
            color: var(--c-text-secondary);
            display: block;
            margin-bottom: 6px;
        }
        .pager-item .pager-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--c-primary);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: hidden;
            overflow: hidden;
        }
        .pager-item.next {
            text-align: right;
        }

        /* 相关推荐 */
        .related-section {
            padding: 48px 0 0;
            background-color: transparent;
        }
        .related-section .section-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
        }
        .related-section .section-title {
            font-size: 22px;
            font-weight: 600;
            color: var(--c-primary);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background-color: var(--c-bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .related-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .related-card .related-thumb {
            aspect-ratio: 16 / 9;
            background-color: #f0ede8;
            overflow: hidden;
        }
        .related-card .related-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .related-card .related-body {
            padding: 16px 18px 18px;
        }
        .related-card .badge {
            margin-bottom: 8px;
        }
        .related-card h3 {
            font-size: 15px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--c-primary);
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: hidden;
            overflow: hidden;
        }
        .related-card .related-time {
            font-size: 12px;
            color: var(--c-text-secondary);
        }
        .related-empty {
            text-align: center;
            padding: 40px 20px;
            color: var(--c-text-secondary);
            background-color: rgba(22,43,59,0.02);
            border-radius: var(--radius-md);
            font-size: 14px;
        }

        /* 文章页底部 CTA */
        .article-cta {
            margin-top: 48px;
            background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-light) 100%);
            border-radius: var(--radius-lg);
            padding: 40px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
        }
        .article-cta .cta-text h2 {
            font-size: 22px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
        }
        .article-cta .cta-text p {
            font-size: 14px;
            color: rgba(255,255,255,0.75);
            line-height: 1.6;
            margin: 0;
        }
        .article-cta .btn {
            flex-shrink: 0;
            background-color: var(--c-accent);
            color: #fff;
        }
        .article-cta .btn:hover {
            background-color: var(--c-accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(201,162,75,0.35);
        }

        /* 返回入口 */
        .back-entry {
            text-align: center;
            padding-top: 28px;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background-color: var(--c-footer-bg);
            color: rgba(255,255,255,0.75);
            padding: 56px 0 28px;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 40px;
        }
        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(255,255,255,0.6);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 13px;
            color: rgba(255,255,255,0.6);
            transition: color var(--transition-base);
        }
        .footer-col ul li a:hover {
            color: var(--c-accent);
        }
        .footer-col ul li {
            font-size: 13px;
            line-height: 1.6;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 12px;
        }
        .footer-bottom a {
            color: rgba(255,255,255,0.6);
            transition: color var(--transition-base);
        }
        .footer-bottom a:hover {
            color: var(--c-accent);
        }
        .copyright {
            line-height: 1.7;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .article-hero {
                padding: 32px 28px 0;
            }
            .article-cover {
                margin: 20px 28px 0;
            }
            .article-body {
                padding: 24px 28px 36px;
            }
            .article-risk-note {
                margin: 0 28px 32px;
            }
            .article-pager {
                padding: 0 28px 32px;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .article-cta {
                padding: 32px 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .site-header.mobile-open .main-nav {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                background-color: var(--c-primary);
                padding: 20px 24px;
                gap: 4px;
                align-items: stretch;
            }
            .site-header.mobile-open .main-nav a {
                color: rgba(255,255,255,0.85);
                padding: 12px 0;
                font-size: 15px;
                border-bottom: 1px solid rgba(255,255,255,0.08);
            }
            .site-header.mobile-open .main-nav a:hover {
                color: var(--c-accent);
            }
            .site-header.mobile-open .main-nav a.active {
                color: var(--c-accent);
            }
            .site-header.mobile-open .main-nav a.active::after {
                display: none;
            }
            .article-hero h1 {
                font-size: 26px;
            }
            .article-pager {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .pager-item.next {
                text-align: left;
            }
            .article-cta {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 640px) {
            :root {
                --section-pad: 40px;
                --section-pad-mobile: 32px;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .logo-text {
                font-size: 16px;
            }
            .nav-cta .btn {
                padding: 8px 16px;
                font-size: 13px;
            }
            .breadcrumb-wrap {
                padding-top: calc(var(--nav-height-mobile) + 20px);
            }
            .article-layout {
                padding-top: 16px;
                padding-bottom: 32px;
            }
            .article-hero {
                padding: 24px 20px 0;
            }
            .article-hero h1 {
                font-size: 22px;
            }
            .article-hero .article-excerpt {
                font-size: 14px;
            }
            .article-meta {
                gap: 10px;
                font-size: 12px;
            }
            .article-cover {
                margin: 16px 20px 0;
                aspect-ratio: 16 / 10;
            }
            .article-body {
                padding: 20px 20px 28px;
                font-size: 15px;
            }
            .article-body h2 {
                font-size: 20px;
            }
            .article-body h3 {
                font-size: 17px;
            }
            .article-risk-note {
                margin: 0 20px 24px;
                font-size: 12px;
            }
            .article-pager {
                padding: 0 20px 24px;
            }
            .related-section .section-title {
                font-size: 18px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .article-cta {
                padding: 24px 20px;
                border-radius: var(--radius-md);
            }
            .article-cta .cta-text h2 {
                font-size: 18px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category1 */
:root {
            --c-primary: #162B3B;
            --c-primary-light: #1F3D54;
            --c-accent: #C9A24B;
            --c-accent-hover: #B38E3A;
            --c-alert: #D4542C;
            --c-bg: #F7F5F0;
            --c-bg-white: #FFFFFF;
            --c-text: #1C1C1C;
            --c-text-secondary: #5C5A54;
            --c-border: #E2DDD3;
            --c-footer-bg: #0F1E2A;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-card: 0 1px 3px rgba(22,43,59,0.06), 0 4px 16px rgba(22,43,59,0.06);
            --shadow-hover: 0 8px 24px rgba(22,43,59,0.14);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "Helvetica Neue", Arial, sans-serif;
            --container-max: 1200px;
            --nav-height: 68px;
            --nav-height-mobile: 56px;
            --section-pad: 72px;
            --section-pad-mobile: 40px;
            --transition-base: 200ms ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.8;
            color: var(--c-text);
            background-color: var(--c-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            padding-top: var(--nav-height);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        /* ========== 通用按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .btn:focus-visible {
            outline: 2px solid var(--c-accent);
            outline-offset: 3px;
        }
        .btn:active {
            transform: translateY(0);
        }
        .btn-primary {
            background-color: var(--c-accent);
            color: #fff;
        }
        .btn-primary:hover {
            background-color: var(--c-accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(201,162,75,0.35);
        }
        .btn-secondary {
            background-color: #fff;
            color: var(--c-primary);
            border: 1px solid var(--c-primary);
        }
        .btn-secondary:hover {
            background-color: var(--c-primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline-light {
            background-color: transparent;
            color: #fff;
            border: 1px solid rgba(255,255,255,0.65);
        }
        .btn-outline-light:hover {
            background-color: #fff;
            color: var(--c-primary);
            transform: translateY(-2px);
        }
        .btn-block {
            display: flex;
            width: 100%;
        }
        /* ========== 标签/徽章 ========== */
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.02em;
            line-height: 1.5;
        }
        .badge-gold {
            background-color: rgba(201,162,75,0.14);
            color: var(--c-accent-hover);
        }
        .badge-dark {
            background-color: rgba(22,43,59,0.06);
            color: var(--c-primary);
        }
        .badge-alert {
            background-color: rgba(212,84,44,0.1);
            color: var(--c-alert);
        }
        .badge-white {
            background-color: rgba(255,255,255,0.16);
            color: #fff;
        }
        /* ========== Header/Nav ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--nav-height);
            background-color: rgba(255,255,255,0.97);
            z-index: 1000;
            transition: box-shadow 300ms ease, background-color 300ms ease;
        }
        .site-header.scrolled {
            box-shadow: 0 2px 8px rgba(22,43,59,0.08);
            background-color: #fff;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--c-accent);
            font-weight: 700;
            font-size: 18px;
            letter-spacing: -0.02em;
        }
        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--c-primary);
            letter-spacing: 0.01em;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--c-primary);
            position: relative;
            padding: 4px 0;
            transition: color var(--transition-base);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background-color: var(--c-accent);
            transition: width var(--transition-base);
        }
        .main-nav a:hover {
            color: var(--c-accent-hover);
        }
        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }
        .main-nav a.active {
            color: var(--c-accent-hover);
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .nav-cta .btn {
            padding: 8px 20px;
            font-size: 14px;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            z-index: 1100;
        }
        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--c-primary);
            border-radius: 2px;
            transition: all var(--transition-base);
        }
        .hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            width: 100%;
            max-height: 0;
            overflow: hidden;
            background-color: var(--c-primary);
            z-index: 999;
            transition: max-height 350ms ease;
        }
        .mobile-menu.open {
            max-height: 480px;
        }
        .mobile-menu a {
            display: block;
            padding: 14px 24px;
            color: #fff;
            font-size: 16px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
            transition: color var(--transition-base), padding-left var(--transition-base);
        }
        .mobile-menu a:hover {
            color: var(--c-accent);
            padding-left: 32px;
        }
        .mobile-menu .btn {
            margin: 16px 24px;
            width: calc(100% - 48px);
        }
        /* ========== Section 通用 ========== */
        section {
            padding: var(--section-pad) 0;
        }
        .section-bg-white {
            background-color: var(--c-bg-white);
        }
        .section-bg-dark {
            background-color: var(--c-primary);
            color: #fff;
        }
        .section-bg-muted {
            background-color: #EFEAE2;
        }
        .section-header {
            margin-bottom: 40px;
        }
        .section-header .badge {
            margin-bottom: 12px;
        }
        .section-header h2 {
            font-size: 28px;
            font-weight: 600;
            line-height: 1.3;
            margin-bottom: 12px;
            color: var(--c-primary);
        }
        .section-bg-dark .section-header h2 {
            color: #fff;
        }
        .section-header p {
            color: var(--c-text-secondary);
            max-width: 680px;
            font-size: 15px;
        }
        .section-bg-dark .section-header p {
            color: rgba(255,255,255,0.75);
        }
        /* ========== 面包屑 ========== */
        .breadcrumb-wrap {
            padding: 24px 0 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--c-text-secondary);
            margin-bottom: 0;
        }
        .breadcrumb a {
            color: var(--c-primary);
            transition: color var(--transition-base);
        }
        .breadcrumb a:hover {
            color: var(--c-accent-hover);
        }
        .breadcrumb .sep {
            color: var(--c-border);
        }
        .breadcrumb .current {
            color: var(--c-accent-hover);
            font-weight: 500;
        }
        /* ========== 分类 Hero ========== */
        .category-hero {
            padding: 48px 0 56px;
            background-color: var(--c-bg-white);
            border-bottom: 1px solid var(--c-border);
        }
        .category-hero .container {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }
        .category-hero h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--c-primary);
            margin-bottom: 16px;
        }
        .category-hero .subtitle {
            font-size: 16px;
            color: var(--c-text-secondary);
            line-height: 1.8;
            max-width: 560px;
        }
        .category-hero .hero-actions {
            display: flex;
            gap: 16px;
            margin-top: 28px;
            flex-wrap: wrap;
        }
        .category-hero .hero-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .category-hero .hero-image img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
        }
        /* ========== 概述板块 ========== */
        .overview-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: stretch;
        }
        .overview-text h2 {
            font-size: 24px;
            font-weight: 600;
            color: var(--c-primary);
            margin-bottom: 16px;
        }
        .overview-text p {
            color: var(--c-text-secondary);
            line-height: 1.85;
            margin-bottom: 14px;
        }
        .overview-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            height: 100%;
            min-height: 280px;
        }
        .overview-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        /* ========== 子场景卡片 ========== */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .scene-card {
            background-color: var(--c-bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--c-border);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .scene-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--c-accent);
        }
        .scene-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background-color: rgba(22,43,59,0.04);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            font-size: 22px;
            color: var(--c-accent);
        }
        .scene-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--c-primary);
            margin-bottom: 8px;
        }
        .scene-card p {
            font-size: 14px;
            color: var(--c-text-secondary);
            margin-bottom: 0;
            line-height: 1.7;
        }
        /* ========== 杠杆参数表格 ========== */
        .param-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .param-card {
            background-color: var(--c-bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--c-border);
            transition: all var(--transition-base);
            position: relative;
        }
        .param-card:hover {
            box-shadow: var(--shadow-hover);
        }
        .param-card.recommended {
            border-color: var(--c-accent);
            box-shadow: 0 0 0 1px var(--c-accent), var(--shadow-card);
        }
        .param-card .rec-badge {
            position: absolute;
            top: -12px;
            left: 24px;
            background-color: var(--c-accent);
            color: #fff;
            padding: 2px 14px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.03em;
        }
        .param-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--c-primary);
            margin-bottom: 16px;
        }
        .param-list {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
        }
        .param-list li {
            display: flex;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px solid var(--c-border);
            font-size: 14px;
            color: var(--c-text-secondary);
        }
        .param-list li span:last-child {
            font-weight: 600;
            color: var(--c-text);
            font-family: var(--font-num);
        }
        .param-footnote {
            font-size: 12px;
            color: var(--c-text-secondary);
            text-align: center;
        }
        /* ========== 流程步骤 ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .step-item {
            text-align: center;
            position: relative;
        }
        .step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background-color: var(--c-accent);
            color: #fff;
            font-size: 22px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-family: var(--font-num);
            box-shadow: 0 4px 12px rgba(201,162,75,0.3);
        }
        .step-item h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--c-primary);
            margin-bottom: 8px;
        }
        .section-bg-dark .step-item h3 {
            color: #fff;
        }
        .step-item p {
            font-size: 14px;
            color: var(--c-text-secondary);
            max-width: 220px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .section-bg-dark .step-item p {
            color: rgba(255,255,255,0.7);
        }
        /* ========== 风控要点 ========== */
        .risk-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .risk-item {
            display: flex;
            gap: 16px;
            background-color: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.12);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: all var(--transition-base);
        }
        .risk-item:hover {
            background-color: rgba(255,255,255,0.1);
            border-color: var(--c-accent);
        }
        .risk-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background-color: rgba(201,162,75,0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: var(--c-accent);
            font-size: 18px;
        }
        .risk-item h3 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 4px;
        }
        .risk-item p {
            font-size: 13px;
            color: rgba(255,255,255,0.7);
            margin-bottom: 0;
            line-height: 1.6;
        }
        /* ========== FAQ ========== */
        .faq-wrap {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            background-color: var(--c-bg-white);
            border: 1px solid var(--c-border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--c-primary);
            gap: 16px;
            transition: color var(--transition-base);
        }
        .faq-question:hover {
            color: var(--c-accent-hover);
        }
        .faq-question .arrow {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background-color: rgba(22,43,59,0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            transition: transform var(--transition-base);
            color: var(--c-text-secondary);
        }
        .faq-item.open .faq-question .arrow {
            transform: rotate(180deg);
            background-color: var(--c-accent);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 300ms ease;
        }
        .faq-item.open .faq-answer {
            max-height: 500px;
        }
        .faq-answer-inner {
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--c-text-secondary);
            line-height: 1.75;
            background-color: #FAF8F4;
            border-top: 1px solid var(--c-border);
            padding-top: 14px;
        }
        /* ========== CTA 转化条 ========== */
        .cta-banner {
            background-color: var(--c-primary);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
        }
        .cta-banner h2 {
            font-size: 26px;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .cta-banner p {
            color: rgba(255,255,255,0.75);
            max-width: 560px;
            margin: 0 auto 24px;
        }
        .cta-banner .btn {
            margin: 4px;
        }
        /* ========== 资讯卡片 ========== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .news-card {
            background-color: var(--c-bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--c-border);
            transition: all var(--transition-base);
        }
        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--c-accent);
        }
        .news-thumb {
            aspect-ratio: 16/9;
            background-color: rgba(22,43,59,0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--c-text-secondary);
            font-size: 32px;
            overflow: hidden;
        }
        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .news-body {
            padding: 20px;
        }
        .news-body .badge {
            margin-bottom: 10px;
        }
        .news-body h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--c-primary);
            margin-bottom: 8px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-body p {
            font-size: 13px;
            color: var(--c-text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-meta {
            font-size: 12px;
            color: var(--c-text-secondary);
            opacity: 0.75;
        }
        .news-empty {
            text-align: center;
            padding: 48px 24px;
            background-color: var(--c-bg-white);
            border: 1px dashed var(--c-border);
            border-radius: var(--radius-lg);
        }
        .news-empty .empty-icon {
            font-size: 40px;
            margin-bottom: 12px;
            color: var(--c-border);
        }
        .news-empty p {
            color: var(--c-text-secondary);
            margin-bottom: 0;
        }
        /* ========== 查看更多入口 ========== */
        .more-wrap {
            text-align: center;
            margin-top: 32px;
        }
        /* ========== Footer ========== */
        .site-footer {
            background-color: var(--c-footer-bg);
            color: rgba(255,255,255,0.75);
            padding: 56px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.4fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255,255,255,0.65);
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a,
        .footer-col ul li {
            font-size: 14px;
            color: rgba(255,255,255,0.65);
            transition: color var(--transition-base);
        }
        .footer-col ul li a:hover {
            color: var(--c-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
        }
        .footer-bottom .copyright {
            font-size: 13px;
            color: rgba(255,255,255,0.5);
            line-height: 1.7;
            margin-bottom: 4px;
        }
        .footer-bottom .copyright a {
            color: rgba(255,255,255,0.7);
            transition: color var(--transition-base);
        }
        .footer-bottom .copyright a:hover {
            color: var(--c-accent);
        }
        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            :root {
                --section-pad: 48px;
            }
            .category-hero .container {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .category-hero h1 {
                font-size: 30px;
            }
            .overview-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .scene-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .param-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px 16px;
            }
            .risk-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
        }
        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-menu {
                display: block;
            }
        }
        @media (max-width: 640px) {
            body {
                padding-top: var(--nav-height-mobile);
            }
            .site-header {
                height: var(--nav-height-mobile);
            }
            .mobile-menu {
                top: var(--nav-height-mobile);
            }
            :root {
                --section-pad: var(--section-pad-mobile);
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            section {
                padding: 36px 0;
            }
            .category-hero {
                padding: 32px 0 40px;
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .category-hero .subtitle {
                font-size: 14px;
            }
            .category-hero .hero-actions {
                flex-direction: column;
                gap: 10px;
            }
            .category-hero .hero-actions .btn {
                width: 100%;
            }
            .scene-grid {
                grid-template-columns: 1fr;
            }
            .param-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .risk-grid {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .cta-banner {
                padding: 32px 20px;
            }
            .cta-banner h2 {
                font-size: 22px;
            }
            .btn {
                padding: 10px 20px;
                font-size: 14px;
            }
            .logo-text {
                font-size: 16px;
            }
            .breadcrumb-wrap {
                padding: 16px 0 0;
            }
        }

/* roulang page: category3 */
:root {
            --c-primary: #162B3B;
            --c-primary-light: #1F3D54;
            --c-accent: #C9A24B;
            --c-accent-hover: #B38E3A;
            --c-alert: #D4542C;
            --c-bg: #F7F5F0;
            --c-bg-white: #FFFFFF;
            --c-text: #1C1C1C;
            --c-text-secondary: #5C5A54;
            --c-border: #E2DDD3;
            --c-footer-bg: #0F1E2A;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-card: 0 1px 3px rgba(22,43,59,0.06), 0 4px 16px rgba(22,43,59,0.06);
            --shadow-hover: 0 8px 24px rgba(22,43,59,0.14);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "Helvetica Neue", Arial, sans-serif;
            --container-max: 1200px;
            --nav-height: 68px;
            --nav-height-mobile: 56px;
            --section-pad: 72px;
            --section-pad-mobile: 40px;
            --transition-base: 200ms ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            scroll-padding-top: var(--nav-height);
        }
        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.8;
            color: var(--c-text);
            background-color: var(--c-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            padding-top: var(--nav-height);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .btn:focus-visible {
            outline: 2px solid var(--c-accent);
            outline-offset: 3px;
        }
        .btn:active {
            transform: translateY(0);
        }
        .btn-primary {
            background-color: var(--c-accent);
            color: #fff;
            border: 1px solid var(--c-accent);
        }
        .btn-primary:hover {
            background-color: var(--c-accent-hover);
            border-color: var(--c-accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(201,162,75,0.35);
        }
        .btn-secondary {
            background-color: #fff;
            color: var(--c-primary);
            border: 1px solid var(--c-primary);
        }
        .btn-secondary:hover {
            background-color: var(--c-primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline-light {
            background-color: transparent;
            color: #fff;
            border: 1px solid rgba(255,255,255,0.65);
        }
        .btn-outline-light:hover {
            background-color: #fff;
            color: var(--c-primary);
            transform: translateY(-2px);
        }
        .btn-block {
            display: flex;
            width: 100%;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.02em;
            line-height: 1.5;
        }
        .badge-gold {
            background-color: rgba(201,162,75,0.14);
            color: var(--c-accent-hover);
        }
        .badge-dark {
            background-color: rgba(22,43,59,0.06);
            color: var(--c-primary);
        }
        .badge-alert {
            background-color: rgba(212,84,44,0.1);
            color: var(--c-alert);
        }
        .badge-white {
            background-color: rgba(255,255,255,0.16);
            color: #fff;
        }
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--nav-height);
            background-color: rgba(255,255,255,0.97);
            z-index: 1000;
            transition: box-shadow 300ms ease, background-color 300ms ease;
        }
        .site-header.scrolled {
            box-shadow: 0 2px 8px rgba(22,43,59,0.08);
            background-color: #fff;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--c-accent);
            font-weight: 700;
            font-size: 18px;
            letter-spacing: -0.02em;
        }
        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--c-primary);
            letter-spacing: 0.01em;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 2px;
        }
        .main-nav a {
            position: relative;
            display: flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--c-primary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-base);
        }
        .main-nav a:hover {
            color: var(--c-accent);
        }
        .main-nav a.active {
            color: var(--c-accent);
            background-color: rgba(201,162,75,0.08);
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 2px;
            background-color: var(--c-accent);
            border-radius: 2px;
        }
        .header-cta {
            flex-shrink: 0;
        }
        .header-cta .btn {
            padding: 10px 20px;
            font-size: 14px;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            background: none;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--c-primary);
            border-radius: 2px;
            transition: all 300ms ease;
        }
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 13px;
            color: var(--c-text-secondary);
            margin-bottom: 12px;
        }
        .breadcrumb-custom a {
            color: var(--c-text-secondary);
        }
        .breadcrumb-custom a:hover {
            color: var(--c-accent);
        }
        .breadcrumb-custom .sep {
            color: var(--c-border);
        }
        .section-pad {
            padding-top: var(--section-pad);
            padding-bottom: var(--section-pad);
        }
        .section-pad-sm {
            padding-top: 48px;
            padding-bottom: 48px;
        }
        .section-pad-lg {
            padding-top: 80px;
            padding-bottom: 80px;
        }
        .bg-white {
            background-color: var(--c-bg-white);
        }
        .bg-warm {
            background-color: var(--c-bg);
        }
        .bg-dark-primary {
            background-color: var(--c-primary);
        }
        .bg-footer {
            background-color: var(--c-footer-bg);
        }
        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--c-primary);
            line-height: 1.3;
            margin-bottom: 12px;
        }
        .section-title.light {
            color: #fff;
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--c-text-secondary);
            line-height: 1.75;
            max-width: 720px;
            margin: 0 auto;
        }
        .section-subtitle.light {
            color: rgba(255,255,255,0.72);
        }
        .section-head {
            margin-bottom: 36px;
            text-align: center;
        }
        .section-head.left {
            text-align: left;
        }
        .section-divider {
            border: 0;
            border-top: 1px solid var(--c-border);
            margin: 0;
        }
        .content-card {
            background: var(--c-bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }
        .content-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .icon-badge {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--c-accent);
            background-color: rgba(201,162,75,0.1);
            flex-shrink: 0;
        }
        .icon-badge.dark {
            color: var(--c-accent);
            background-color: rgba(255,255,255,0.1);
        }
        .step-number {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--c-accent);
            color: #fff;
            font-size: 17px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .step-connector {
            flex: 1;
            height: 1px;
            background: dashed 1px var(--c-border);
            border-top: 1px dashed var(--c-border);
            margin: 0 8px;
        }
        .step-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 12px;
            flex: 1;
            min-width: 0;
        }
        .step-item h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--c-primary);
            margin: 0;
        }
        .step-item p {
            font-size: 13px;
            color: var(--c-text-secondary);
            line-height: 1.65;
            margin: 0;
        }
        .steps-row {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            flex-wrap: wrap;
        }
        .condition-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
            gap: 16px;
        }
        .condition-item {
            background: var(--c-bg-white);
            border: 1px solid var(--c-border);
            border-radius: var(--radius-md);
            padding: 20px;
            display: flex;
            align-items: flex-start;
            gap: 12px;
            transition: all var(--transition-base);
        }
        .condition-item:hover {
            border-color: var(--c-accent);
            box-shadow: var(--shadow-card);
        }
        .condition-item .icon-badge {
            width: 36px;
            height: 36px;
            font-size: 17px;
        }
        .condition-item h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--c-primary);
            margin: 0 0 4px;
        }
        .condition-item p {
            font-size: 13px;
            color: var(--c-text-secondary);
            line-height: 1.6;
            margin: 0;
        }
        .account-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 16px;
        }
        .account-card {
            background: var(--c-bg-white);
            border: 1px solid var(--c-border);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: all var(--transition-base);
            position: relative;
        }
        .account-card:hover {
            border-color: var(--c-accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .account-card .recommend-ribbon {
            position: absolute;
            top: -10px;
            right: 20px;
            background-color: var(--c-accent);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            letter-spacing: 0.02em;
        }
        .account-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--c-primary);
            margin-bottom: 8px;
        }
        .account-card .card-desc {
            font-size: 13px;
            color: var(--c-text-secondary);
            line-height: 1.65;
            margin-bottom: 16px;
        }
        .account-card ul {
            list-style: none;
            padding: 0;
            margin: 0 0 16px;
        }
        .account-card ul li {
            font-size: 13px;
            color: var(--c-text-secondary);
            line-height: 1.7;
            padding: 4px 0;
            border-bottom: 1px solid var(--c-border);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .account-card ul li:last-child {
            border-bottom: none;
        }
        .account-card ul li::before {
            content: '✓';
            color: var(--c-accent);
            font-weight: 700;
            font-size: 13px;
        }
        .rate-table {
            background: var(--c-bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }
        .rate-table .table {
            margin: 0;
        }
        .rate-table .table thead th {
            background-color: var(--c-primary);
            color: #fff;
            font-weight: 600;
            font-size: 13px;
            padding: 14px 16px;
            border: none;
            text-align: center;
            vertical-align: middle;
        }
        .rate-table .table tbody td {
            font-size: 13px;
            color: var(--c-text-secondary);
            padding: 13px 16px;
            text-align: center;
            vertical-align: middle;
            border-color: var(--c-border);
        }
        .rate-table .table tbody tr:hover td {
            background-color: rgba(201,162,75,0.05);
        }
        .rate-table .highlight-row td {
            background-color: rgba(201,162,75,0.08);
            font-weight: 500;
            color: var(--c-primary);
        }
        .rate-footnote {
            font-size: 12px;
            color: var(--c-text-secondary);
            text-align: center;
            padding: 12px 16px;
            background-color: var(--c-bg);
            border-top: 1px solid var(--c-border);
            margin: 0;
        }
        .faq-wrapper {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--c-bg-white);
            border: 1px solid var(--c-border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--c-accent);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--c-primary);
            background: none;
            width: 100%;
            text-align: left;
            transition: all var(--transition-base);
        }
        .faq-question:hover {
            color: var(--c-accent-hover);
        }
        .faq-question .arrow {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--c-text-secondary);
            transition: transform 200ms ease;
            font-size: 18px;
            line-height: 1;
        }
        .faq-item.open .faq-question .arrow {
            transform: rotate(180deg);
            color: var(--c-accent);
        }
        .faq-answer {
            display: none;
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--c-text-secondary);
            line-height: 1.75;
            background-color: rgba(247,245,240,0.5);
            margin: 0 12px 12px;
            border-radius: var(--radius-sm);
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .cta-banner {
            background-color: var(--c-primary);
            background-image: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-light) 100%);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
        }
        .cta-banner h2 {
            font-size: 26px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-banner p {
            font-size: 15px;
            color: rgba(255,255,255,0.75);
            line-height: 1.75;
            max-width: 650px;
            margin: 0 auto 24px;
        }
        .news-card {
            background: var(--c-bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .news-cover {
            width: 100%;
            aspect-ratio: 16 / 9;
            background-color: #E8E4DC;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }
        .news-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .news-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-body .badge {
            align-self: flex-start;
            margin-bottom: 8px;
        }
        .news-body h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--c-primary);
            line-height: 1.5;
            margin: 0 0 8px;
        }
        .news-body h4 a:hover {
            color: var(--c-accent-hover);
        }
        .news-body .news-excerpt {
            font-size: 13px;
            color: var(--c-text-secondary);
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
            flex: 1;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--c-text-secondary);
            padding-top: 10px;
            border-top: 1px solid var(--c-border);
        }
        .news-empty {
            text-align: center;
            padding: 48px 20px;
            background: var(--c-bg-white);
            border-radius: var(--radius-lg);
            border: 1px dashed var(--c-border);
        }
        .news-empty .empty-icon {
            font-size: 36px;
            color: var(--c-border);
            margin-bottom: 12px;
        }
        .news-empty p {
            font-size: 14px;
            color: var(--c-text-secondary);
            margin: 0;
        }
        .site-footer {
            background-color: var(--c-footer-bg);
            color: rgba(255,255,255,0.75);
            padding-top: 56px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.3fr;
            gap: 32px;
            padding-bottom: 40px;
        }
        .site-footer h3 {
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .site-footer h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 14px;
        }
        .site-footer p {
            font-size: 13px;
            line-height: 1.7;
            margin: 0;
            color: rgba(255,255,255,0.65);
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: 8px;
        }
        .site-footer ul li a {
            font-size: 13px;
            color: rgba(255,255,255,0.65);
            transition: color var(--transition-base);
        }
        .site-footer ul li a:hover {
            color: var(--c-accent);
        }
        .site-footer ul li span {
            font-size: 13px;
            color: rgba(255,255,255,0.65);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding: 20px 0;
            text-align: center;
        }
        .footer-bottom .copyright {
            font-size: 12px;
            color: rgba(255,255,255,0.5);
            line-height: 1.7;
        }
        .footer-bottom .copyright a {
            color: rgba(255,255,255,0.6);
        }
        .footer-bottom .copyright a:hover {
            color: var(--c-accent);
        }
        @media (max-width: 1024px) {
            .section-pad,
            .section-pad-lg {
                padding-top: 48px;
                padding-bottom: 48px;
            }
            .section-pad-sm {
                padding-top: 36px;
                padding-bottom: 36px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .steps-row {
                gap: 10px;
            }
            .step-connector {
                display: none;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-pad: 40px;
                --section-pad-mobile: 32px;
            }
            body {
                padding-top: var(--nav-height-mobile);
                font-size: 14px;
            }
            .site-header {
                height: var(--nav-height-mobile);
            }
            .main-nav {
                position: fixed;
                top: var(--nav-height-mobile);
                left: 0;
                right: 0;
                background-color: var(--c-primary);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 24px;
                gap: 4px;
                transform: translateY(-130%);
                transition: transform 300ms ease;
                max-height: calc(100vh - var(--nav-height-mobile));
                overflow-y: auto;
                z-index: 999;
                box-shadow: 0 8px 24px rgba(22,43,59,0.18);
            }
            .main-nav.open {
                transform: translateY(0);
            }
            .main-nav a {
                color: #fff;
                padding: 12px 16px;
                font-size: 15px;
                border-radius: var(--radius-sm);
            }
            .main-nav a:hover,
            .main-nav a.active {
                color: var(--c-accent);
                background-color: rgba(255,255,255,0.06);
            }
            .main-nav a.active::after {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-toggle.open span:nth-child(1) {
                transform: translateY(7px) rotate(45deg);
            }
            .nav-toggle.open span:nth-child(2) {
                opacity: 0;
            }
            .nav-toggle.open span:nth-child(3) {
                transform: translateY(-7px) rotate(-45deg);
            }
            .section-title {
                font-size: 22px;
            }
            .steps-row {
                flex-direction: column;
                gap: 20px;
            }
            .step-item {
                flex-direction: row;
                text-align: left;
                gap: 12px;
                align-items: flex-start;
            }
            .account-grid {
                grid-template-columns: 1fr;
            }
            .condition-list {
                grid-template-columns: 1fr;
            }
            .cta-banner {
                padding: 32px 20px;
            }
            .cta-banner h2 {
                font-size: 22px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
                padding-bottom: 28px;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .breadcrumb-custom {
                font-size: 12px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-pad,
            .section-pad-lg {
                padding-top: 36px;
                padding-bottom: 36px;
            }
            .section-pad-sm {
                padding-top: 28px;
                padding-bottom: 28px;
            }
            .btn {
                padding: 10px 18px;
                font-size: 13px;
                white-space: normal;
                text-align: center;
            }
            .section-title {
                font-size: 20px;
            }
            .logo-text {
                font-size: 16px;
            }
            .logo-mark {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }
        }

/* roulang page: category2 */
:root {
            --c-primary: #162B3B;
            --c-primary-light: #1F3D54;
            --c-accent: #C9A24B;
            --c-accent-hover: #B38E3A;
            --c-alert: #D4542C;
            --c-bg: #F7F5F0;
            --c-bg-white: #FFFFFF;
            --c-text: #1C1C1C;
            --c-text-secondary: #5C5A54;
            --c-border: #E2DDD3;
            --c-footer-bg: #0F1E2A;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-card: 0 1px 3px rgba(22,43,59,0.06), 0 4px 16px rgba(22,43,59,0.06);
            --shadow-hover: 0 8px 24px rgba(22,43,59,0.14);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "Helvetica Neue", Arial, sans-serif;
            --container-max: 1200px;
            --nav-height: 68px;
            --nav-height-mobile: 56px;
            --section-pad: 72px;
            --section-pad-mobile: 40px;
            --transition-base: 200ms ease;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.8;
            color: var(--c-text);
            background-color: var(--c-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            padding-top: var(--nav-height);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .btn:focus-visible {
            outline: 2px solid var(--c-accent);
            outline-offset: 3px;
        }
        .btn:active {
            transform: translateY(0);
        }
        .btn-primary {
            background-color: var(--c-accent);
            color: #fff;
        }
        .btn-primary:hover {
            background-color: var(--c-accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(201,162,75,0.35);
        }
        .btn-secondary {
            background-color: #fff;
            color: var(--c-primary);
            border: 1px solid var(--c-primary);
        }
        .btn-secondary:hover {
            background-color: var(--c-primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline-light {
            background-color: transparent;
            color: #fff;
            border: 1px solid rgba(255,255,255,0.65);
        }
        .btn-outline-light:hover {
            background-color: #fff;
            color: var(--c-primary);
            transform: translateY(-2px);
        }
        .btn-block {
            display: flex;
            width: 100%;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.02em;
            line-height: 1.5;
        }
        .badge-gold {
            background-color: rgba(201,162,75,0.14);
            color: var(--c-accent-hover);
        }
        .badge-dark {
            background-color: rgba(22,43,59,0.06);
            color: var(--c-primary);
        }
        .badge-alert {
            background-color: rgba(212,84,44,0.1);
            color: var(--c-alert);
        }
        .badge-white {
            background-color: rgba(255,255,255,0.16);
            color: #fff;
        }
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--nav-height);
            background-color: rgba(255,255,255,0.97);
            z-index: 1000;
            transition: box-shadow 300ms ease, background-color 300ms ease;
        }
        .site-header.scrolled {
            box-shadow: 0 2px 8px rgba(22,43,59,0.08);
            background-color: #fff;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--c-accent);
            font-weight: 700;
            font-size: 18px;
            letter-spacing: -0.02em;
        }
        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--c-primary);
            letter-spacing: 0.01em;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--c-primary);
            position: relative;
            padding: 4px 0;
        }
        .main-nav a:hover {
            color: var(--c-accent);
        }
        .main-nav a.active {
            color: var(--c-accent);
        }
        .main-nav a.active::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -4px;
            width: 100%;
            height: 2px;
            background-color: var(--c-accent);
            border-radius: 2px;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--c-primary);
            border-radius: 2px;
            transition: transform var(--transition-base), opacity var(--transition-base);
        }
        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .page-hero {
            background-color: var(--c-primary);
            color: #fff;
            padding: 56px 0;
            background-image: url('/assets/images/61b133c5f6e4b61c.webp');
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .page-hero::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(22,43,59,0.85);
            z-index: 0;
        }
        .page-hero .container {
            position: relative;
            z-index: 1;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            margin-bottom: 16px;
            color: rgba(255,255,255,0.8);
        }
        .breadcrumb a {
            color: var(--c-accent);
        }
        .breadcrumb a:hover {
            color: var(--c-accent-hover);
        }
        .page-hero h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 16px;
        }
        .page-hero-desc {
            font-size: 16px;
            max-width: 720px;
            color: rgba(255,255,255,0.9);
        }
        .section {
            padding: var(--section-pad) 0;
        }
        .section-head {
            max-width: 720px;
            margin-bottom: 40px;
        }
        .section-head h2 {
            font-size: 28px;
            font-weight: 600;
            line-height: 1.3;
            margin-top: 8px;
            margin-bottom: 12px;
            color: var(--c-primary);
        }
        .section-head p {
            color: var(--c-text-secondary);
        }
        .overview-section {
            background-color: var(--c-bg-white);
        }
        .overview-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .overview-text h2 {
            font-size: 28px;
            font-weight: 600;
            margin: 12px 0;
            color: var(--c-primary);
        }
        .overview-text p {
            color: var(--c-text-secondary);
            margin-bottom: 24px;
        }
        .overview-points {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 8px;
        }
        .overview-points div {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 500;
            color: var(--c-primary);
        }
        .overview-points i {
            width: 8px;
            height: 8px;
            background-color: var(--c-accent);
            border-radius: 50%;
            display: inline-block;
        }
        .overview-image img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-hover);
        }
        .types-section {
            background-color: var(--c-bg);
        }
        .type-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .type-card {
            background-color: #fff;
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            border: 1px solid transparent;
        }
        .type-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: var(--c-accent);
        }
        .type-icon {
            font-size: 32px;
            margin-bottom: 16px;
            color: var(--c-accent);
        }
        .type-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--c-primary);
        }
        .type-card p {
            font-size: 14px;
            color: var(--c-text-secondary);
            margin-bottom: 16px;
        }
        .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--c-accent);
        }
        .card-link:hover {
            color: var(--c-accent-hover);
            text-decoration: underline;
        }
        .view-more {
            text-align: center;
            margin-top: 32px;
        }
        .process-section {
            background-color: var(--c-bg-white);
        }
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
        }
        .process-grid::before {
            content: "";
            position: absolute;
            top: 24px;
            left: 12%;
            right: 12%;
            height: 2px;
            background-image: linear-gradient(to right, var(--c-border) 50%, transparent 50%);
            background-size: 12px 2px;
        }
        .process-step {
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background-color: var(--c-accent);
            color: #fff;
            font-weight: 700;
            font-size: 18px;
            margin-bottom: 16px;
        }
        .process-step h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--c-primary);
        }
        .process-step p {
            font-size: 14px;
            color: var(--c-text-secondary);
        }
        .params-section {
            background-color: var(--c-bg);
        }
        .params-table-wrap {
            background-color: #fff;
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-card);
            overflow-x: auto;
        }
        .params-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 600px;
        }
        .params-table th,
        .params-table td {
            padding: 14px 16px;
            text-align: left;
            border-bottom: 1px solid var(--c-border);
            font-size: 14px;
        }
        .params-table th {
            background-color: var(--c-primary);
            color: #fff;
            font-weight: 600;
        }
        .params-table tr:last-child td {
            border-bottom: none;
        }
        .params-table td {
            color: var(--c-text-secondary);
        }
        .params-note {
            margin-top: 16px;
            font-size: 13px;
            color: var(--c-text-secondary);
        }
        .faq-section {
            background-color: var(--c-bg-white);
        }
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--c-border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            background-color: #fff;
            transition: box-shadow var(--transition-base);
        }
        .faq-item.active {
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--c-primary);
            text-align: left;
            transition: color var(--transition-base);
        }
        .faq-question:hover {
            color: var(--c-accent);
        }
        .faq-icon {
            font-size: 20px;
            font-weight: 400;
            transition: transform var(--transition-base);
            color: var(--c-accent);
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 200ms ease;
            background-color: #faf9f6;
        }
        .faq-item.active .faq-answer {
            max-height: 240px;
        }
        .faq-answer p {
            padding: 4px 20px 20px;
            font-size: 14px;
            color: var(--c-text-secondary);
            line-height: 1.7;
        }
        .cta-section {
            background-color: var(--c-primary);
            padding: 60px 0;
        }
        .cta-inner {
            text-align: center;
            color: #fff;
        }
        .cta-inner h2 {
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-inner p {
            font-size: 16px;
            margin-bottom: 28px;
            color: rgba(255,255,255,0.85);
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .news-section {
            background-color: var(--c-bg);
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .news-card {
            background-color: #fff;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }
        .news-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .news-thumb {
            aspect-ratio: 16/9;
            background-color: #eee;
            overflow: hidden;
        }
        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }
        .news-card:hover .news-thumb img {
            transform: scale(1.03);
        }
        .news-body {
            padding: 20px;
        }
        .news-cat {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            color: var(--c-accent-hover);
            background-color: rgba(201,162,75,0.12);
            padding: 2px 10px;
            border-radius: 20px;
            margin-bottom: 10px;
        }
        .news-body h3 {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.45;
            margin-bottom: 8px;
            color: var(--c-primary);
        }
        .news-body p {
            font-size: 13px;
            color: var(--c-text-secondary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }
        .news-body time {
            font-size: 12px;
            color: var(--c-text-secondary);
        }
        .empty-state {
            text-align: center;
            padding: 40px;
            color: var(--c-text-secondary);
            background-color: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
        }
        .site-footer {
            background-color: var(--c-footer-bg);
            color: rgba(255,255,255,0.8);
            padding-top: 48px;
            padding-bottom: 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .footer-brand h3 {
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(255,255,255,0.7);
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col li {
            margin-bottom: 10px;
            font-size: 14px;
        }
        .footer-col a {
            color: rgba(255,255,255,0.75);
            transition: color var(--transition-base);
        }
        .footer-col a:hover {
            color: var(--c-accent);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
            padding-top: 20px;
            font-size: 13px;
            color: rgba(255,255,255,0.6);
        }
        .footer-bottom a {
            color: rgba(255,255,255,0.6);
        }
        .footer-bottom a:hover {
            color: var(--c-accent);
        }
        @media (max-width: 1024px) {
            .overview-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .type-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .process-grid::before {
                display: none;
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .section {
                padding: 48px 0;
            }
        }
        @media (max-width: 768px) {
            :root {
                --nav-height: var(--nav-height-mobile);
                --section-pad: var(--section-pad-mobile);
            }
            body {
                padding-top: var(--nav-height);
            }
            .main-nav {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                height: calc(100vh - var(--nav-height));
                background-color: var(--c-primary);
                flex-direction: column;
                justify-content: flex-start;
                gap: 0;
                transform: translateX(100%);
                transition: transform 300ms ease;
                z-index: 999;
                padding: 24px;
                align-items: flex-start;
                overflow-y: auto;
            }
            .main-nav.open {
                transform: translateX(0);
            }
            .main-nav a {
                color: #fff;
                font-size: 18px;
                padding: 16px 0;
                width: 100%;
                border-bottom: 1px solid rgba(255,255,255,0.1);
            }
            .main-nav a.active {
                color: var(--c-accent);
            }
            .main-nav a.active::after {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .type-grid,
            .process-grid,
            .news-grid {
                grid-template-columns: 1fr;
            }
            .cta-inner h2 {
                font-size: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .footer-bottom {
                flex-direction: column;
            }
        }