/* roulang page: index */
:root {
            --primary: #0E4F45;
            --primary-dark: #093B34;
            --primary-light: #1A6B5E;
            --accent: #B98A3E;
            --accent-light: #D4AF6A;
            --accent-bg: rgba(185, 138, 62, 0.12);
            --danger: #C8462E;
            --danger-bg: rgba(200, 70, 46, 0.08);
            --danger-border: rgba(200, 70, 46, 0.25);
            --bg: #F6F3EC;
            --bg-dark: #12211F;
            --bg-dark-soft: #1A2E2B;
            --white: #FFFFFF;
            --border: #E5DDCF;
            --border-input: #D8CFC0;
            --text: #1C2927;
            --text-light: #5A6B68;
            --text-lighter: #879693;
            --text-on-dark: #EDF2F0;
            --text-on-dark-light: #A8B8B4;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(18, 33, 31, 0.04);
            --shadow-md: 0 10px 30px rgba(18, 33, 31, 0.06);
            --shadow-lg: 0 14px 36px rgba(18, 33, 31, 0.12);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-num: 'Inter', 'Roboto', sans-serif;
            --container: 1200px;
            --gutter: 20px;
            --section-pad: 72px;
            --section-pad-mobile: 40px;
            --nav-height: 68px;
            --transition: 0.22s 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: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 10px;
        }

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

        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: 1.5;
        }

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

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

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 var(--gutter);
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            background: var(--bg-dark);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid rgba(185, 138, 62, 0.15);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: 24px;
        }

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

        .nav-logo .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: 8px;
            background: var(--primary);
            border: 1px solid var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-weight: 700;
            font-size: 18px;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }

        .nav-logo .logo-text {
            color: var(--text-on-dark);
            font-size: 17px;
            font-weight: 700;
            letter-spacing: 0.5px;
            line-height: 1.2;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 26px;
        }

        .nav-links a {
            color: var(--text-on-dark-light);
            font-size: 14px;
            font-weight: 500;
            position: relative;
            padding: 6px 0;
            transition: color var(--transition);
            letter-spacing: 0.3px;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 1px;
            transition: width var(--transition);
        }

        .nav-links a:hover {
            color: var(--text-on-dark);
        }

        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }

        .nav-links a.active {
            color: var(--accent);
        }

        .nav-cta {
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            padding: 0 22px;
            height: 44px;
            transition: all var(--transition);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

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

        .btn-primary:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(185, 138, 62, 0.3);
        }

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

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

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

        .btn-outline:active {
            background: var(--accent);
            color: #fff;
            transform: translateY(0);
        }

        .btn-lg {
            height: 52px;
            padding: 0 32px;
            font-size: 16px;
            border-radius: 10px;
        }

        .btn-sm {
            height: 36px;
            padding: 0 14px;
            font-size: 13px;
        }

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

        .btn-danger:hover {
            background: #A83825;
            border-color: #A83825;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(200, 70, 46, 0.3);
        }

        /* Mobile nav toggle */
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            background: transparent;
            border: none;
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-on-dark);
            border-radius: 1px;
            transition: all var(--transition);
        }

        .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 COMMON ========== */
        section {
            padding: var(--section-pad) 0;
        }

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

        .section-header .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: 1.5px;
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        .section-header .section-title {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            letter-spacing: -0.5px;
        }

        .section-header .section-sub {
            font-size: 15px;
            color: var(--text-light);
            margin-top: 8px;
            max-width: 720px;
        }

        .section-header.centered {
            text-align: center;
        }
        .section-header.centered .section-sub {
            margin-left: auto;
            margin-right: auto;
        }

        .bg-white-section {
            background: var(--white);
        }
        .bg-warm-section {
            background: var(--bg);
        }
        .bg-dark-section {
            background: var(--bg-dark);
            color: var(--text-on-dark);
        }

        /* ========== STATUS BAR ========== */
        .status-bar {
            background: #0D1B19;
            border-bottom: 1px solid rgba(185, 138, 62, 0.2);
            padding: 10px 0;
            font-size: 13px;
            color: var(--text-on-dark-light);
        }

        .status-bar .container {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 28px;
            align-items: center;
        }

        .status-bar .status-label {
            color: var(--accent);
            font-weight: 600;
            letter-spacing: 0.5px;
        }

        .status-bar .status-dot {
            display: inline-block;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: #4CAF50;
            margin-right: 6px;
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }

        /* ========== HERO ========== */
        .hero {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
            padding: 72px 0 64px;
            min-height: 520px;
            display: flex;
            align-items: center;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: 
                linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
            background-size: 40px 40px;
            pointer-events: none;
        }

        .hero::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(185,138,62,0.12) 0%, transparent 65%);
            pointer-events: none;
        }

        .hero .container {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content {
            color: var(--text-on-dark);
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(185, 138, 62, 0.15);
            border: 1px solid rgba(185, 138, 62, 0.35);
            color: var(--accent-light);
            font-size: 13px;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: 20px;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .hero-title {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.22;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            color: var(--text-on-dark);
        }

        .hero-sub {
            font-size: 16px;
            color: var(--text-on-dark-light);
            line-height: 1.75;
            max-width: 540px;
            margin-bottom: 28px;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 28px;
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
        }

        .hero-stat .stat-number {
            font-family: var(--font-num);
            font-size: 24px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
        }

        .hero-stat .stat-label {
            font-size: 12px;
            color: var(--text-on-dark-light);
            letter-spacing: 0.5px;
        }

        /* Hero form */
        .hero-form-wrap {
            background: var(--white);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-lg);
        }

        .hero-form-wrap .form-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 4px;
        }

        .hero-form-wrap .form-desc {
            font-size: 13px;
            color: var(--text-light);
            margin-bottom: 18px;
        }

        .form-group {
            margin-bottom: 14px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 5px;
        }

        .form-group input,
        .form-group select {
            width: 100%;
            height: 44px;
            padding: 0 14px;
            border: 1px solid var(--border-input);
            border-radius: var(--radius-sm);
            background: var(--white);
            color: var(--text);
            font-size: 14px;
            transition: border-color var(--transition), box-shadow var(--transition);
            appearance: none;
            -webkit-appearance: none;
        }

        .form-group input:focus,
        .form-group select:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(185, 138, 62, 0.15);
            outline: none;
        }

        .form-group select {
            background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235A6B68' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            padding-right: 36px;
        }

        .form-group .code-row {
            display: flex;
            gap: 10px;
        }

        .form-group .code-row input {
            flex: 1;
        }

        .form-group .code-row .btn-sm {
            height: 44px;
            flex-shrink: 0;
            padding: 0 16px;
            background: var(--bg);
            border: 1px solid var(--border-input);
            color: var(--text-light);
            font-size: 13px;
            border-radius: var(--radius-sm);
        }

        .form-group .code-row .btn-sm:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: var(--accent-bg);
        }

        .hero-form-wrap .btn-primary {
            width: 100%;
            margin-top: 6px;
        }

        .form-risk-tip {
            font-size: 12px;
            color: var(--danger);
            margin-top: 10px;
            text-align: center;
            line-height: 1.5;
        }

        /* ========== TOPIC GRID ========== */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .topic-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 6px;
            min-height: 110px;
        }

        .topic-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .topic-card .topic-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--accent-bg);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
            margin-bottom: 4px;
        }

        .topic-card .topic-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.3;
        }

        .topic-card .topic-desc {
            font-size: 12px;
            color: var(--text-light);
            line-height: 1.5;
        }

        /* ========== STEPS ========== */
        .steps-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: step;
        }

        .step-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            position: relative;
            transition: all var(--transition);
            counter-increment: step;
        }

        .step-item:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .step-item::before {
            content: counter(step, decimal-leading-zero);
            font-family: var(--font-num);
            font-size: 36px;
            font-weight: 700;
            color: var(--accent);
            opacity: 0.3;
            position: absolute;
            top: 12px;
            right: 16px;
            line-height: 1;
        }

        .step-item .step-number {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 1px;
            margin-bottom: 6px;
            text-transform: uppercase;
        }

        .step-item .step-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
        }

        .step-item .step-desc {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* ========== COMPARISON TABLE ========== */
        .compare-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            background: var(--white);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 680px;
        }

        .compare-table th {
            background: var(--primary);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 14px 16px;
            text-align: left;
            letter-spacing: 0.5px;
        }

        .compare-table td {
            padding: 13px 16px;
            font-size: 13px;
            color: var(--text);
            border-bottom: 1px solid var(--border);
            font-family: var(--font-num);
        }

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

        .compare-table tr:hover td {
            background: rgba(185, 138, 62, 0.04);
        }

        .compare-table td:first-child {
            font-family: var(--font-sans);
            font-weight: 600;
            color: var(--text);
        }

        .compare-table .highlight-cell {
            color: var(--primary);
            font-weight: 700;
        }

        .risk-note {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 13px;
            color: var(--danger);
            background: var(--danger-bg);
            border-left: 3px solid var(--danger);
            padding: 10px 14px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin-top: 14px;
        }

        .risk-note::before {
            content: '⚠';
            flex-shrink: 0;
            font-size: 14px;
        }

        /* ========== SPLIT LAYOUT ========== */
        .split-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .split-content .split-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .split-content .split-desc {
            font-size: 14px;
            color: var(--text-light);
            margin-bottom: 18px;
            line-height: 1.7;
        }

        .fee-list {
            list-style: none;
            padding: 0;
        }

        .fee-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px dashed var(--border);
            font-size: 14px;
            color: var(--text);
        }

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

        .fee-list li .fee-icon {
            width: 24px;
            height: 24px;
            border-radius: 6px;
            background: var(--accent-bg);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .calc-box {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px;
        }

        .calc-box .calc-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
        }

        .calc-row {
            display: flex;
            justify-content: space-between;
            padding: 8px 0;
            font-size: 14px;
            color: var(--text-light);
            border-bottom: 1px dashed var(--border);
        }

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

        .calc-row .calc-value {
            font-family: var(--font-num);
            font-weight: 600;
            color: var(--text);
        }

        /* ========== SOFTWARE SECTION ========== */
        .software-visual {
            background: var(--bg-dark);
            border-radius: var(--radius-md);
            overflow: hidden;
            position: relative;
            min-height: 360px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .software-visual .software-img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.55;
        }

        .software-visual .software-overlay {
            position: relative;
            z-index: 1;
            text-align: center;
            color: var(--text-on-dark);
            padding: 32px;
        }

        .software-visual .software-overlay .overlay-title {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .software-visual .software-overlay .overlay-desc {
            font-size: 13px;
            color: var(--text-on-dark-light);
            max-width: 320px;
        }

        .software-features {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .software-features li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text);
            line-height: 1.6;
        }

        .software-features li .sw-icon {
            width: 28px;
            height: 28px;
            border-radius: 6px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            flex-shrink: 0;
            margin-top: 2px;
        }

        /* ========== SAFETY SECTION (DARK BG) ========== */
        .safety-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .safety-card {
            background: var(--bg-dark-soft);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            padding: 22px;
            transition: all var(--transition);
        }

        .safety-card:hover {
            border-color: rgba(185, 138, 62, 0.5);
            background: #1F3633;
        }

        .safety-card .safety-icon {
            font-size: 22px;
            margin-bottom: 8px;
        }

        .safety-card .safety-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-on-dark);
            margin-bottom: 6px;
        }

        .safety-card .safety-desc {
            font-size: 13px;
            color: var(--text-on-dark-light);
            line-height: 1.6;
        }

        /* ========== RULES SECTION ========== */
        .rules-box {
            border: 1px solid var(--danger-border);
            border-radius: var(--radius-md);
            background: rgba(200, 70, 46, 0.04);
            padding: 24px;
        }

        .rules-box .rules-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--danger);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .rules-list {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .rules-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text);
            line-height: 1.6;
        }

        .rules-list li .rule-badge {
            flex-shrink: 0;
            font-size: 12px;
            font-weight: 600;
            color: var(--danger);
            background: var(--danger-bg);
            border: 1px solid var(--danger-border);
            padding: 1px 8px;
            border-radius: 4px;
            margin-top: 2px;
            letter-spacing: 0.5px;
        }

        /* ========== NEWS CARDS ========== */
        .news-list-layout {
            display: grid;
            grid-template-columns: 1fr 280px;
            gap: 32px;
            align-items: start;
        }

        .news-cards-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .news-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .news-card .news-img-wrap {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            border-radius: 0;
            background: var(--bg);
            position: relative;
        }

        .news-card .news-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.4s ease;
        }

        .news-card:hover .news-img-wrap img {
            transform: scale(1.04);
        }

        .news-card .news-body {
            padding: 16px 18px 18px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex: 1;
        }

        .news-card .news-category {
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }

        .news-card .news-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.45;
            margin: 0;
        }

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

        .news-card .news-summary {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.6;
            margin: 0;
            flex: 1;
        }

        .news-card .news-meta {
            font-size: 12px;
            color: var(--text-lighter);
            font-family: var(--font-num);
        }

        .news-sidebar {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px;
        }

        .news-sidebar .sidebar-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
        }

        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .sidebar-tags a {
            font-size: 12px;
            color: var(--text-light);
            background: var(--bg);
            border: 1px solid var(--border);
            padding: 4px 12px;
            border-radius: 16px;
            transition: all var(--transition);
        }

        .sidebar-tags a:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: var(--accent-bg);
        }

        .empty-news {
            padding: 40px 20px;
            text-align: center;
            color: var(--text-light);
            background: var(--white);
            border: 1px dashed var(--border);
            border-radius: var(--radius-md);
            grid-column: 1 / -1;
        }

        /* ========== BEGINNER LIST ========== */
        .beginner-layout {
            display: grid;
            grid-template-columns: 0.7fr 1.3fr;
            gap: 36px;
            align-items: start;
        }

        .beginner-left .beginner-tag {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: 1.5px;
            margin-bottom: 10px;
            text-transform: uppercase;
        }

        .beginner-left .beginner-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
            margin-bottom: 10px;
        }

        .beginner-left .beginner-desc {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }

        .beginner-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .beginner-item {
            display: flex;
            gap: 16px;
            align-items: center;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 14px 18px;
            transition: all var(--transition);
        }

        .beginner-item:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-sm);
            transform: translateX(2px);
        }

        .beginner-item .b-num {
            font-family: var(--font-num);
            font-size: 18px;
            font-weight: 700;
            color: var(--accent);
            width: 36px;
            flex-shrink: 0;
            text-align: center;
        }

        .beginner-item .b-content {
            flex: 1;
            min-width: 0;
        }

        .beginner-item .b-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 2px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .beginner-item .b-title a:hover {
            color: var(--primary);
        }

        .beginner-item .b-summary {
            font-size: 12px;
            color: var(--text-light);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .beginner-item .b-time {
            font-size: 12px;
            color: var(--text-lighter);
            font-family: var(--font-num);
            flex-shrink: 0;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 820px;
        }

        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: var(--accent);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            text-align: left;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            transition: color var(--transition);
            background: transparent;
            border: none;
        }

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

        .faq-question .faq-num {
            font-family: var(--font-num);
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
            width: 28px;
            height: 28px;
            border-radius: 6px;
            background: var(--accent-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .faq-question .faq-icon {
            margin-left: auto;
            font-size: 18px;
            color: var(--text-lighter);
            transition: transform var(--transition);
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            color: var(--accent);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 340px;
            padding: 0 20px 18px 60px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            background: var(--bg);
            border-left: 3px solid var(--accent);
            padding: 12px 16px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        }

        /* ========== CONDITIONS ========== */
        .conditions-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .condition-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 22px;
        }

        .condition-card .cond-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .condition-card .cond-list {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .condition-card .cond-list li {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }

        .condition-card .cond-list li::before {
            content: '✓';
            color: var(--primary);
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 1px;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--bg-dark);
            text-align: center;
            padding: 64px 0;
        }

        .cta-section .cta-title {
            font-size: 30px;
            font-weight: 700;
            color: var(--text-on-dark);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        .cta-section .cta-sub {
            font-size: 14px;
            color: var(--text-on-dark-light);
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== RISK DISCLAIMER BAR ========== */
        .risk-disclaimer {
            background: #1A0F0C;
            border-top: 1px solid rgba(200, 70, 46, 0.3);
            padding: 18px 0;
        }

        .risk-disclaimer .container {
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .risk-disclaimer .risk-icon {
            color: var(--danger);
            font-size: 16px;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .risk-disclaimer p {
            font-size: 13px;
            color: #D4A9A0;
            line-height: 1.7;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            padding: 56px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 32px;
            padding-bottom: 36px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }

        .footer-brand .footer-logo .logo-mark {
            width: 32px;
            height: 32px;
            border-radius: 6px;
            background: var(--primary);
            border: 1px solid var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-weight: 700;
            font-size: 14px;
        }

        .footer-brand .footer-logo span {
            color: var(--text-on-dark);
            font-weight: 700;
            font-size: 15px;
        }

        .footer-brand .footer-desc {
            font-size: 13px;
            color: var(--text-on-dark-light);
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-col .footer-col-title {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-on-dark);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul a {
            font-size: 13px;
            color: var(--text-on-dark-light);
            transition: color var(--transition);
        }

        .footer-col ul a:hover {
            color: var(--accent);
        }

        .footer-col .footer-contact-item {
            font-size: 13px;
            color: var(--text-on-dark-light);
            display: flex;
            align-items: flex-start;
            gap: 8px;
            margin-bottom: 6px;
        }

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

        .footer-bottom p {
            font-size: 12px;
            color: var(--text-on-dark-light);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            :root {
                --section-pad: 56px;
            }

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

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

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

            .steps-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }

            .news-list-layout {
                grid-template-columns: 1fr;
            }

            .news-sidebar {
                order: -1;
            }

            .beginner-layout {
                grid-template-columns: 1fr;
                gap: 20px;
            }

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

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

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

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

            .news-cards-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-pad: var(--section-pad-mobile);
                --nav-height: 60px;
            }

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

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

            .hero {
                padding: 44px 0 40px;
                min-height: auto;
            }

            .hero-title {
                font-size: 27px;
            }

            .hero-sub {
                font-size: 14px;
            }

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

            .hero-stat .stat-number {
                font-size: 20px;
            }

            .topic-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .steps-row {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .step-item {
                padding: 18px 16px;
            }

            .step-item::before {
                font-size: 28px;
                top: 8px;
                right: 12px;
            }

            .compare-table-wrap {
                margin: 0 -8px;
            }

            .news-cards-grid {
                grid-template-columns: 1fr;
            }

            .faq-question {
                font-size: 14px;
                padding: 13px 16px;
                gap: 10px;
            }

            .faq-item.open .faq-answer {
                padding: 0 16px 14px 48px;
            }

            .faq-answer p {
                font-size: 13px;
            }

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

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

            .footer-brand {
                text-align: left;
            }
            .footer-brand .footer-logo {
                justify-content: flex-start;
            }

            /* Mobile nav drawer */
            .nav-toggle {
                display: flex;
            }

            .nav-links {
                position: fixed;
                top: var(--nav-height);
                right: 0;
                width: 280px;
                max-width: 85vw;
                height: calc(100vh - var(--nav-height));
                background: var(--bg-dark);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 16px 24px;
                transform: translateX(100%);
                transition: transform 0.3s ease;
                z-index: 999;
                overflow-y: auto;
                box-shadow: -8px 0 24px rgba(0,0,0,0.2);
            }

            .nav-links.open {
                transform: translateX(0);
            }

            .nav-links a {
                display: block;
                width: 100%;
                padding: 14px 0;
                font-size: 15px;
                border-bottom: 1px solid rgba(255,255,255,0.06);
                color: var(--text-on-dark-light);
            }

            .nav-links a::after {
                display: none;
            }

            .nav-links a.active {
                color: var(--accent);
                border-left: 3px solid var(--accent);
                padding-left: 12px;
            }

            .nav-cta {
                display: none;
            }

            .nav-links .mobile-cta {
                margin-top: 16px;
                width: 100%;
            }

            .nav-links .mobile-cta .btn {
                width: 100%;
            }

            .status-bar .container {
                gap: 4px 16px;
                font-size: 12px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 23px;
            }

            .hero-form-wrap {
                padding: 20px 16px;
            }

            .section-header .section-title {
                font-size: 21px;
            }

            .btn-lg {
                height: 46px;
                padding: 0 24px;
                font-size: 14px;
            }

            .hero-cta-group {
                flex-direction: column;
                gap: 10px;
            }

            .hero-cta-group .btn {
                width: 100%;
            }

            .compare-table th,
            .compare-table td {
                padding: 10px 12px;
                font-size: 12px;
            }

            .topic-card {
                padding: 14px;
                min-height: auto;
            }

            .form-group .code-row {
                flex-direction: column;
            }

            .form-group .code-row .btn-sm {
                width: 100%;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #0E4F45;
            --primary-dark: #093B34;
            --primary-light: #1A6B5E;
            --accent: #B98A3E;
            --accent-light: #D4AF6A;
            --accent-bg: rgba(185, 138, 62, 0.12);
            --danger: #C8462E;
            --danger-bg: rgba(200, 70, 46, 0.08);
            --danger-border: rgba(200, 70, 46, 0.25);
            --bg: #F6F3EC;
            --bg-dark: #12211F;
            --bg-dark-soft: #1A2E2B;
            --white: #FFFFFF;
            --border: #E5DDCF;
            --border-input: #D8CFC0;
            --text: #1C2927;
            --text-light: #5A6B68;
            --text-lighter: #879693;
            --text-on-dark: #EDF2F0;
            --text-on-dark-light: #A8B8B4;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(18, 33, 31, 0.04);
            --shadow-md: 0 10px 30px rgba(18, 33, 31, 0.06);
            --shadow-lg: 0 14px 36px rgba(18, 33, 31, 0.12);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-num: 'Inter', 'Roboto', sans-serif;
            --container: 1200px;
            --gutter: 20px;
            --section-pad: 72px;
            --section-pad-mobile: 40px;
            --nav-height: 68px;
            --transition: 0.22s ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 10px;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: 1.5;
        }
        button {
            cursor: pointer;
            border: none;
            outline: none;
            background: none;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 var(--gutter);
        }
        /* ========== HEADER / NAV ========== */
        .site-header {
            background: var(--bg-dark);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid rgba(185, 138, 62, 0.15);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: 24px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .nav-logo .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: 8px;
            background: var(--primary);
            border: 1px solid var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-weight: 700;
            font-size: 18px;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .nav-logo .logo-text {
            color: var(--text-on-dark);
            font-size: 17px;
            font-weight: 700;
            letter-spacing: 0.5px;
            line-height: 1.2;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 26px;
        }
        .nav-links a {
            color: var(--text-on-dark-light);
            font-size: 14px;
            font-weight: 500;
            position: relative;
            padding: 6px 0;
            transition: color var(--transition);
            letter-spacing: 0.3px;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 1px;
            transition: width var(--transition);
        }
        .nav-links a:hover {
            color: var(--text-on-dark);
        }
        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }
        .nav-links a.active {
            color: var(--accent);
        }
        .nav-cta {
            flex-shrink: 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            padding: 0 22px;
            height: 44px;
            transition: all var(--transition);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
        }
        .btn-primary:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
        }
        .btn-primary:active {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
        }
        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--accent);
        }
        .btn-secondary:hover {
            background: var(--accent-bg);
            border-color: var(--accent);
        }
        .btn-light {
            background: var(--white);
            color: var(--primary);
            border: 1px solid var(--white);
        }
        .btn-light:hover {
            background: var(--accent-light);
            color: #fff;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 28px;
            height: 22px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 0;
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-on-dark);
            border-radius: 1px;
            transition: all var(--transition);
        }
        .mobile-cta {
            display: none;
        }
        /* ========== SECTION ========== */
        .section {
            padding: var(--section-pad) 0;
            background: var(--bg);
        }
        .section-alt {
            background: var(--white);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-on-dark);
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
            color: var(--text);
        }
        .section-subtitle {
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-light);
            margin-bottom: 36px;
            max-width: 760px;
        }
        .text-danger {
            color: var(--danger) !important;
        }
        .risk-bar {
            background: var(--danger-bg);
            border: 1px solid var(--danger-border);
            border-radius: var(--radius-sm);
            padding: 14px 18px;
            color: var(--danger);
            font-size: 13px;
            line-height: 1.6;
            margin-top: 20px;
        }
        /* ========== PAGE HERO ========== */
        .page-hero {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            padding: 48px 0 56px;
            border-bottom: 1px solid rgba(185, 138, 62, 0.2);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-on-dark-light);
            margin-bottom: 20px;
            list-style: none;
            padding: 0;
        }
        .breadcrumb li {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '/';
            margin-left: 4px;
            color: rgba(255,255,255,0.35);
        }
        .breadcrumb a {
            color: var(--accent-light);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .page-hero h1 {
            font-size: 38px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin: 0 0 14px;
            color: var(--text-on-dark);
        }
        .page-hero .subtitle {
            font-size: 16px;
            color: var(--text-on-dark-light);
            max-width: 820px;
            line-height: 1.7;
        }
        /* ========== STEPS ========== */
        .step-vertical {
            display: flex;
            flex-direction: column;
            gap: 18px;
            counter-reset: step;
        }
        .step-item {
            display: flex;
            gap: 20px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .step-item:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-md);
        }
        .step-num {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            counter-increment: step;
        }
        .step-num::before {
            content: counter(step, decimal-leading-zero);
        }
        .step-content {
            flex: 1;
        }
        .step-content h3 {
            font-size: 20px;
            font-weight: 600;
            margin: 0 0 8px;
            color: var(--primary);
        }
        .step-content p {
            margin: 0 0 8px;
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.7;
        }
        .step-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 10px;
        }
        .step-meta span {
            background: var(--accent-bg);
            color: var(--accent);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
        }
        /* ========== CONDITIONS ========== */
        .condition-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .condition-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 26px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .condition-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-md);
        }
        .condition-card h3 {
            font-size: 20px;
            font-weight: 600;
            margin: 0 0 14px;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .condition-card h3::before {
            content: '';
            width: 4px;
            height: 22px;
            background: var(--accent);
            border-radius: 2px;
        }
        .condition-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .condition-list li {
            padding: 8px 0;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 14px;
            color: var(--text-light);
        }
        .condition-list li:last-child {
            border-bottom: none;
        }
        .condition-list li::before {
            content: '▪';
            color: var(--accent);
            font-size: 12px;
            line-height: 1.6;
            flex-shrink: 0;
        }
        /* ========== AUTH SPLIT ========== */
        .split-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .split-image {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .split-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            border-radius: var(--radius-md);
        }
        .split-content h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text);
        }
        .split-content p {
            color: var(--text-light);
            margin-bottom: 16px;
            line-height: 1.75;
        }
        .split-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .split-list li {
            padding: 10px 0;
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 15px;
            color: var(--text);
        }
        .split-list li::before {
            content: '✓';
            color: var(--primary);
            font-weight: 700;
        }
        /* ========== FAQ / REASONS ========== */
        .reason-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .reason-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 18px 22px;
            position: relative;
        }
        .reason-item h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 6px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .reason-item h4::before {
            content: attr(data-num);
            background: var(--danger-bg);
            color: var(--danger);
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 13px;
            flex-shrink: 0;
        }
        .reason-item p {
            margin: 0;
            color: var(--text-light);
            font-size: 14px;
        }
        /* ========== CATEGORY ENTRY ========== */
        .category-entry-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .category-entry-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: block;
        }
        .category-entry-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .category-entry-card .entry-tag {
            display: inline-block;
            background: var(--accent-bg);
            color: var(--accent);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }
        .category-entry-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 8px;
        }
        .category-entry-card p {
            color: var(--text-light);
            font-size: 14px;
            margin: 0;
        }
        /* ========== CTA ========== */
        .cta-section {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            padding: 56px 0;
            text-align: center;
            border-top: 1px solid rgba(185, 138, 62, 0.2);
        }
        .cta-section h2 {
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: -0.3px;
        }
        .cta-section p {
            color: var(--text-on-dark-light);
            margin-bottom: 28px;
        }
        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-on-dark-light);
            padding-top: 56px;
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 36px;
            padding-bottom: 40px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-logo .logo-mark {
            width: 34px;
            height: 34px;
            border-radius: 6px;
            background: var(--primary);
            border: 1px solid var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-weight: 700;
            font-size: 16px;
        }
        .footer-logo span:last-child {
            color: var(--text-on-dark);
            font-size: 16px;
            font-weight: 700;
            letter-spacing: 0.5px;
        }
        .footer-desc {
            color: var(--text-on-dark-light);
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .footer-col h3 {
            color: var(--text-on-dark);
            font-size: 15px;
            font-weight: 600;
            margin: 0 0 16px;
            letter-spacing: 0.5px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: var(--text-on-dark-light);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-contact-item {
            margin-bottom: 10px;
            color: var(--text-on-dark-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(185, 138, 62, 0.2);
            padding: 18px 0;
            font-size: 13px;
            color: rgba(255,255,255,0.6);
        }
        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .condition-grid,
            .category-entry-grid {
                grid-template-columns: 1fr 1fr;
            }
            .split-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .nav-links {
                gap: 16px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-pad: 40px;
                --nav-height: 60px;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: var(--nav-height);
                right: -100%;
                width: 80%;
                max-width: 320px;
                height: calc(100vh - var(--nav-height));
                background: var(--bg-dark);
                flex-direction: column;
                align-items: flex-start;
                padding: 28px 24px;
                gap: 20px;
                transition: right 0.25s ease;
                z-index: 999;
                box-shadow: -8px 0 30px rgba(0,0,0,0.2);
                overflow-y: auto;
            }
            .nav-links.open {
                right: 0;
            }
            .nav-links a {
                font-size: 16px;
                width: 100%;
                padding: 8px 0;
                border-bottom: 1px solid rgba(255,255,255,0.06);
            }
            .nav-cta {
                display: none;
            }
            .mobile-cta {
                display: block;
                width: 100%;
                margin-top: 12px;
            }
            .mobile-cta .btn {
                width: 100%;
            }
            .condition-grid,
            .category-entry-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .page-hero h1 {
                font-size: 30px;
            }
            .step-item {
                flex-direction: column;
                gap: 12px;
            }
            .cta-section h2 {
                font-size: 24px;
            }
        }
        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 26px;
            }
            .section-title {
                font-size: 24px;
            }
            .btn {
                width: 100%;
                height: 40px;
                font-size: 13px;
            }
        }

/* roulang page: article */
:root {
            --primary: #0E4F45;
            --primary-dark: #093B34;
            --primary-light: #1A6B5E;
            --accent: #B98A3E;
            --accent-light: #D4AF6A;
            --accent-bg: rgba(185, 138, 62, 0.12);
            --danger: #C8462E;
            --danger-bg: rgba(200, 70, 46, 0.08);
            --danger-border: rgba(200, 70, 46, 0.25);
            --bg: #F6F3EC;
            --bg-dark: #12211F;
            --bg-dark-soft: #1A2E2B;
            --white: #FFFFFF;
            --border: #E5DDCF;
            --border-input: #D8CFC0;
            --text: #1C2927;
            --text-light: #5A6B68;
            --text-lighter: #879693;
            --text-on-dark: #EDF2F0;
            --text-on-dark-light: #A8B8B4;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(18, 33, 31, 0.04);
            --shadow-md: 0 10px 30px rgba(18, 33, 31, 0.06);
            --shadow-lg: 0 14px 36px rgba(18, 33, 31, 0.12);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-num: 'Inter', 'Roboto', sans-serif;
            --container: 1200px;
            --gutter: 20px;
            --section-pad: 72px;
            --section-pad-mobile: 40px;
            --nav-height: 68px;
            --transition: 0.22s 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: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 10px;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: 1.5;
        }
        button {
            cursor: pointer;
            border: none;
            outline: none;
            background: none;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 var(--gutter);
        }
        /* ========== HEADER / NAV ========== */
        .site-header {
            background: var(--bg-dark);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid rgba(185, 138, 62, 0.15);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: 24px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .nav-logo .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: 8px;
            background: var(--primary);
            border: 1px solid var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-weight: 700;
            font-size: 18px;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .nav-logo .logo-text {
            color: var(--text-on-dark);
            font-size: 17px;
            font-weight: 700;
            letter-spacing: 0.5px;
            line-height: 1.2;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 26px;
        }
        .nav-links a {
            color: var(--text-on-dark-light);
            font-size: 14px;
            font-weight: 500;
            position: relative;
            padding: 6px 0;
            transition: color var(--transition);
            letter-spacing: 0.3px;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 1px;
            transition: width var(--transition);
        }
        .nav-links a:hover {
            color: var(--text-on-dark);
        }
        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }
        .nav-links a.active {
            color: var(--accent);
        }
        .nav-cta {
            flex-shrink: 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            padding: 0 22px;
            height: 44px;
            transition: all var(--transition);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
        }
        .btn-primary:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
        }
        .btn-primary:active {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
        }
        .btn-outline {
            background: transparent;
            color: var(--accent);
            border: 1px solid var(--accent);
        }
        .btn-outline:hover {
            background: var(--accent-bg);
            color: var(--accent);
        }
        .mobile-cta {
            display: none;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 40px;
            height: 40px;
            padding: 8px;
            border-radius: 8px;
            background: rgba(255,255,255,0.06);
        }
        .nav-toggle span {
            display: block;
            height: 2px;
            width: 100%;
            background: var(--text-on-dark);
            border-radius: 1px;
            transition: all var(--transition);
        }
        .nav-toggle:hover span {
            background: var(--accent);
        }
        @media (max-width: 1024px) {
            .nav-links {
                gap: 18px;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: var(--nav-height);
                right: 0;
                width: min(82vw, 320px);
                background: var(--bg-dark-soft);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 16px 20px 24px;
                border-left: 1px solid rgba(185,138,62,0.25);
                box-shadow: -12px 0 30px rgba(0,0,0,0.18);
                transform: translateX(100%);
                transition: transform var(--transition);
                z-index: 999;
                overflow-y: auto;
                max-height: calc(100vh - var(--nav-height));
            }
            .nav-links.open {
                transform: translateX(0);
            }
            .nav-links a {
                padding: 14px 0;
                border-bottom: 1px solid rgba(255,255,255,0.08);
                font-size: 15px;
            }
            .nav-links a::after {
                display: none;
            }
            .mobile-cta {
                display: block;
                margin-top: 18px;
                padding-top: 12px;
                border-top: 1px solid rgba(255,255,255,0.1);
            }
            .mobile-cta .btn {
                width: 100%;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
        }
        /* ========== ARTICLE MAIN ========== */
        .article-main {
            padding: var(--section-pad) 0;
        }
        .breadcrumb-row {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--text-lighter);
            margin-bottom: 28px;
        }
        .breadcrumb-row a {
            color: var(--text-light);
        }
        .breadcrumb-row a:hover {
            color: var(--primary);
        }
        .breadcrumb-sep {
            color: var(--border);
        }
        .article-header-block {
            margin-bottom: 32px;
        }
        .article-category {
            display: inline-flex;
            padding: 4px 12px;
            border-radius: 20px;
            background: var(--accent-bg);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.3px;
            margin-bottom: 12px;
        }
        .article-title {
            font-size: 38px;
            line-height: 1.25;
            font-weight: 700;
            letter-spacing: -0.5px;
            color: var(--text);
            margin-bottom: 16px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            font-size: 14px;
            color: var(--text-lighter);
        }
        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta .dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--accent);
        }
        .article-body {
            background: var(--white);
            border-radius: var(--radius-md);
            padding: 40px 44px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border);
            margin-bottom: 28px;
            font-size: 16px;
            line-height: 1.85;
            color: var(--text);
        }
        .article-body h2 {
            font-size: 26px;
            line-height: 1.35;
            font-weight: 700;
            margin: 32px 0 16px;
            color: var(--primary);
            padding-left: 14px;
            border-left: 4px solid var(--accent);
        }
        .article-body h3 {
            font-size: 20px;
            font-weight: 600;
            margin: 24px 0 12px;
            color: var(--text);
        }
        .article-body p {
            margin-bottom: 16px;
        }
        .article-body ul,
        .article-body ol {
            margin: 12px 0 20px 22px;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body blockquote {
            border-left: 3px solid var(--accent);
            background: var(--accent-bg);
            padding: 16px 20px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 20px 0;
            color: var(--text-light);
            font-style: normal;
        }
        .article-body img {
            border-radius: 10px;
            margin: 20px 0;
        }
        .article-not-found {
            background: var(--white);
            border: 1px dashed var(--border);
            border-radius: var(--radius-md);
            padding: 60px 24px;
            text-align: center;
            color: var(--text-light);
            margin-bottom: 28px;
        }
        .article-not-found p {
            margin-bottom: 18px;
            font-size: 16px;
        }
        .article-risk-tip {
            background: var(--danger-bg);
            border: 1px solid var(--danger-border);
            border-left: 4px solid var(--danger);
            border-radius: var(--radius-sm);
            padding: 16px 20px;
            color: var(--danger);
            font-size: 14px;
            margin-bottom: 32px;
        }
        .related-section {
            padding: 40px 0;
            background: transparent;
        }
        .related-section .section-head {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 20px;
            letter-spacing: -0.3px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .related-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .related-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }
        .related-card-img {
            height: 160px;
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid var(--border);
        }
        .related-card-body {
            padding: 16px 18px 18px;
        }
        .related-card-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .related-card-summary {
            font-size: 13px;
            color: var(--text-light);
            margin-bottom: 10px;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card-date {
            font-size: 12px;
            color: var(--text-lighter);
        }
        .related-empty {
            background: var(--white);
            border: 1px dashed var(--border);
            border-radius: var(--radius-md);
            padding: 30px;
            text-align: center;
            color: var(--text-light);
        }
        .back-entry {
            padding: 24px 0 32px;
            border-top: 1px solid var(--border);
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: center;
            justify-content: space-between;
        }
        .back-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--text-light);
            font-size: 14px;
            font-weight: 500;
        }
        .back-link:hover {
            color: var(--primary);
        }
        .article-cta {
            background: var(--bg-dark);
            border-radius: var(--radius-md);
            padding: 36px 40px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            color: var(--text-on-dark);
            margin-bottom: 24px;
        }
        .article-cta .cta-text {
            flex: 1 1 300px;
        }
        .article-cta .cta-title {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .article-cta .cta-desc {
            color: var(--text-on-dark-light);
            font-size: 14px;
        }
        .global-risk {
            background: var(--danger-bg);
            border: 1px solid var(--danger-border);
            border-radius: var(--radius-sm);
            padding: 16px 20px;
            color: var(--danger);
            font-size: 13px;
            line-height: 1.6;
            margin-bottom: 40px;
        }
        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-on-dark-light);
            padding-top: 56px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.4fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
            color: var(--text-on-dark);
            font-weight: 700;
            font-size: 17px;
        }
        .footer-logo .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--primary);
            border: 1px solid var(--accent);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-weight: 700;
        }
        .footer-desc {
            font-size: 13px;
            line-height: 1.7;
            color: var(--text-on-dark-light);
            max-width: 260px;
        }
        .footer-col-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-on-dark);
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-on-dark-light);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-contact-item {
            font-size: 13px;
            margin-bottom: 10px;
            color: var(--text-on-dark-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding: 18px 0;
            text-align: center;
            font-size: 13px;
            color: var(--text-on-dark-light);
        }
        .footer-bottom p {
            margin: 0;
        }
        @media (max-width: 1024px) {
            :root {
                --section-pad: 56px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .article-body {
                padding: 30px 28px;
            }
            .article-title {
                font-size: 32px;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-pad: var(--section-pad-mobile);
                --nav-height: 60px;
            }
            .article-title {
                font-size: 28px;
            }
            .article-body {
                padding: 24px 20px;
                font-size: 15px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .article-cta {
                padding: 28px 22px;
                flex-direction: column;
                align-items: flex-start;
            }
            .breadcrumb-row {
                font-size: 12px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #0E4F45;
            --primary-dark: #093B34;
            --primary-light: #1A6B5E;
            --accent: #B98A3E;
            --accent-light: #D4AF6A;
            --accent-bg: rgba(185, 138, 62, 0.12);
            --danger: #C8462E;
            --danger-bg: rgba(200, 70, 46, 0.08);
            --danger-border: rgba(200, 70, 46, 0.25);
            --bg: #F6F3EC;
            --bg-dark: #12211F;
            --bg-dark-soft: #1A2E2B;
            --white: #FFFFFF;
            --border: #E5DDCF;
            --border-input: #D8CFC0;
            --text: #1C2927;
            --text-light: #5A6B68;
            --text-lighter: #879693;
            --text-on-dark: #EDF2F0;
            --text-on-dark-light: #A8B8B4;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(18, 33, 31, 0.04);
            --shadow-md: 0 10px 30px rgba(18, 33, 31, 0.06);
            --shadow-lg: 0 14px 36px rgba(18, 33, 31, 0.12);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-num: 'Inter', 'Roboto', sans-serif;
            --container: 1200px;
            --gutter: 20px;
            --section-pad: 72px;
            --section-pad-mobile: 40px;
            --nav-height: 68px;
            --transition: 0.22s ease;
        }
        @media (max-width: 1024px) {
            :root {
                --section-pad: 56px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-pad: var(--section-pad-mobile);
                --nav-height: 60px;
            }
        }
        * {
            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: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 10px;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: 1.5;
        }
        button {
            cursor: pointer;
            border: none;
            outline: none;
            background: none;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        h1, h2, h3, h4 {
            line-height: 1.3;
            font-weight: 700;
            color: inherit;
        }
        h1 {
            font-size: 40px;
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        h2 {
            font-size: 30px;
            letter-spacing: -0.3px;
        }
        h3 {
            font-size: 21px;
            font-weight: 600;
        }
        p {
            margin-bottom: 0;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 var(--gutter);
        }
        section {
            padding: var(--section-pad) 0;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 30px;
            }
            h2 {
                font-size: 24px;
            }
            h3 {
                font-size: 18px;
            }
        }
        /* ========== HEADER / NAV ========== */
        .site-header {
            background: var(--bg-dark);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid rgba(185, 138, 62, 0.15);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: 24px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .nav-logo .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: 8px;
            background: var(--primary);
            border: 1px solid var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-weight: 700;
            font-size: 18px;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .nav-logo .logo-text {
            color: var(--text-on-dark);
            font-size: 17px;
            font-weight: 700;
            letter-spacing: 0.5px;
            line-height: 1.2;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 26px;
        }
        .nav-links a {
            color: var(--text-on-dark-light);
            font-size: 14px;
            font-weight: 500;
            position: relative;
            padding: 6px 0;
            transition: color var(--transition);
            letter-spacing: 0.3px;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 1px;
            transition: width var(--transition);
        }
        .nav-links a:hover {
            color: var(--text-on-dark);
        }
        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }
        .nav-links a.active {
            color: var(--accent);
        }
        .nav-cta {
            flex-shrink: 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            padding: 0 22px;
            height: 44px;
            transition: all var(--transition);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
        }
        .btn-primary:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
            box-shadow: var(--shadow-md);
        }
        .btn-primary:active {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--accent);
        }
        .btn-outline:hover {
            background: var(--accent-bg);
            border-color: var(--accent);
            color: var(--accent);
        }
        .btn-light {
            background: var(--white);
            color: var(--primary);
            border: 1px solid var(--white);
        }
        .btn-light:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
            color: var(--bg-dark);
        }
        .mobile-cta {
            display: none;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 40px;
            height: 40px;
            padding: 8px;
            border-radius: 4px;
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-on-dark);
            border-radius: 1px;
            transition: all var(--transition);
        }
        /* ========== BREADCRUMB ========== */
        .breadcrumb-section {
            padding: 24px 0;
            background: var(--white);
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-lighter);
        }
        .breadcrumb a {
            color: var(--text-light);
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .separator {
            color: var(--border);
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }
        /* ========== HERO / PAGE HEADER ========== */
        .page-hero {
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-dark-soft) 100%);
            padding: 56px 0 64px;
            border-bottom: 1px solid rgba(185, 138, 62, 0.15);
        }
        .page-hero .container {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .page-hero h1 {
            color: var(--text-on-dark);
            font-size: 38px;
            max-width: 780px;
        }
        .page-hero .hero-sub {
            color: var(--text-on-dark-light);
            font-size: 16px;
            max-width: 640px;
            line-height: 1.8;
        }
        .page-hero .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            margin-top: 8px;
        }
        .page-hero .hero-meta-item {
            color: var(--text-on-dark-light);
            font-size: 13px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .page-hero .hero-meta-item .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }
        /* ========== SECTION HEADING ========== */
        .section-heading {
            margin-bottom: 36px;
        }
        .section-heading h2 {
            color: var(--text);
            font-size: 28px;
            letter-spacing: -0.3px;
            margin-bottom: 10px;
        }
        .section-heading .section-sub {
            color: var(--text-light);
            font-size: 15px;
            max-width: 640px;
            line-height: 1.8;
        }
        .section-heading .section-tag {
            display: inline-block;
            background: var(--accent-bg);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        /* ========== COMPARISON TABLE ========== */
        .bg-white-section {
            background: var(--white);
        }
        .bg-dark-section {
            background: var(--bg-dark);
        }
        .bg-dark-section .section-heading h2 {
            color: var(--text-on-dark);
        }
        .bg-dark-section .section-heading .section-sub {
            color: var(--text-on-dark-light);
        }
        .comparison-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            background: var(--white);
            box-shadow: var(--shadow-sm);
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 860px;
            font-size: 14px;
        }
        .comparison-table thead th {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            padding: 16px 20px;
            text-align: left;
            font-weight: 600;
            font-size: 14px;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .comparison-table tbody td {
            padding: 14px 20px;
            border-top: 1px solid var(--border);
            color: var(--text);
            white-space: nowrap;
        }
        .comparison-table tbody tr:hover td {
            background: var(--accent-bg);
        }
        .comparison-table .highlight-col {
            background: var(--accent-bg);
        }
        .comparison-table .highlight-col:hover td {
            background: var(--accent-bg) !important;
        }
        .comparison-table .col-label {
            font-weight: 600;
            color: var(--primary);
        }
        .comparison-table .col-highlight {
            font-weight: 600;
            color: var(--accent);
        }
        .table-note {
            margin-top: 14px;
            padding: 12px 16px;
            background: var(--danger-bg);
            border-left: 3px solid var(--danger);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--danger);
            font-size: 13px;
            line-height: 1.7;
        }
        /* ========== LEVERAGE CARDS ========== */
        .leverage-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .leverage-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .leverage-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }
        .leverage-card .leverage-num {
            font-family: var(--font-num);
            font-size: 30px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.5px;
        }
        .leverage-card .leverage-unit {
            font-size: 16px;
            color: var(--text-light);
            font-weight: 600;
        }
        .leverage-card h3 {
            font-size: 17px;
            color: var(--text);
            margin: 12px 0 8px;
        }
        .leverage-card p {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.7;
        }
        .leverage-card .risk-label {
            display: inline-block;
            margin-top: 10px;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 12px;
            font-weight: 600;
            background: var(--danger-bg);
            color: var(--danger);
        }
        /* ========== FEE LIST ========== */
        .fee-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
        }
        .fee-list-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding-bottom: 14px;
            border-bottom: 1px solid var(--border);
        }
        .fee-list-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .fee-icon {
            width: 32px;
            height: 32px;
            flex-shrink: 0;
            border-radius: 6px;
            background: var(--accent-bg);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
        }
        .fee-content h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }
        .fee-content p {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.7;
        }
        /* ========== CALCULATOR ========== */
        .calculator-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            background: var(--bg-dark);
            border-radius: var(--radius-lg);
            padding: 36px;
            box-shadow: var(--shadow-lg);
            align-items: center;
        }
        .calculator-form {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .calculator-form label {
            color: var(--text-on-dark-light);
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.3px;
        }
        .calculator-form input {
            background: rgba(255,255,255,0.08);
            border: 1px solid rgba(255,255,255,0.2);
            border-radius: var(--radius-sm);
            padding: 10px 14px;
            color: var(--text-on-dark);
            font-size: 15px;
            width: 100%;
            transition: border-color var(--transition);
        }
        .calculator-form input:focus {
            border-color: var(--accent);
            outline: none;
            box-shadow: 0 0 0 3px rgba(185, 138, 62, 0.15);
        }
        .calculator-form input::placeholder {
            color: rgba(255,255,255,0.35);
        }
        .calculator-result {
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.15);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .calc-result-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255,255,255,0.08);
            color: var(--text-on-dark-light);
            font-size: 14px;
        }
        .calc-result-row:last-child {
            border-bottom: none;
        }
        .calc-result-row .calc-value {
            color: var(--accent-light);
            font-weight: 600;
            font-family: var(--font-num);
            font-size: 16px;
        }
        .calc-result-row .calc-danger {
            color: var(--danger);
            font-weight: 600;
        }
        .calc-caption {
            color: var(--text-on-dark-light);
            font-size: 12px;
            line-height: 1.6;
            margin-top: 4px;
        }
        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 850px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-title-trigger {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 18px 20px;
            font-weight: 600;
            font-size: 15px;
            color: var(--text);
            cursor: pointer;
            transition: color var(--transition);
            width: 100%;
            text-align: left;
            justify-content: flex-start;
        }
        .faq-title-trigger:hover {
            color: var(--primary);
        }
        .faq-number {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            border-radius: 50%;
            background: var(--accent-bg);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
        }
        .faq-arrow {
            margin-left: auto;
            font-size: 14px;
            color: var(--text-lighter);
            transition: transform var(--transition);
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-answer {
            display: none;
            padding: 0 20px 18px 60px;
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.8;
            background: linear-gradient(135deg, rgba(185, 138, 62, 0.04) 0%, transparent 100%);
            border-left: 3px solid var(--accent);
            margin-left: 20px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--primary-dark) 100%);
            padding: 56px 0;
            text-align: center;
        }
        .cta-section h2 {
            color: var(--text-on-dark);
            font-size: 28px;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: var(--text-on-dark-light);
            max-width: 560px;
            margin: 0 auto 24px;
            font-size: 15px;
            line-height: 1.8;
        }
        .cta-section .btn {
            height: 48px;
            padding: 0 32px;
            font-size: 15px;
        }
        /* ========== RISK NOTE ========== */
        .risk-note-section {
            background: var(--danger-bg);
            border-top: 1px solid var(--danger-border);
            border-bottom: 1px solid var(--danger-border);
        }
        .risk-note {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 16px 0;
            color: var(--danger);
            font-size: 13px;
            line-height: 1.7;
        }
        .risk-note-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            border-radius: 50%;
            background: var(--danger);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 700;
            margin-top: 2px;
        }
        /* ========== IMAGE BLOCK ========== */
        .image-block {
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            position: relative;
        }
        .image-block img {
            width: 100%;
            height: auto;
            object-fit: cover;
            border-radius: var(--radius-md);
        }
        .image-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--primary);
            color: #fff;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .image-badge.accent {
            background: var(--accent);
        }
        /* ========== SPLIT BLOCK ========== */
        .split-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: center;
        }
        .split-text h3 {
            color: var(--text);
            font-size: 22px;
            margin-bottom: 12px;
        }
        .split-text p {
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 14px;
        }
        .split-text ul {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .split-text ul li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            color: var(--text-light);
            font-size: 14px;
        }
        .split-text ul li .check {
            color: var(--accent);
            font-weight: 700;
            flex-shrink: 0;
        }
        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            padding-top: 56px;
            color: var(--text-on-dark-light);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 36px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }
        .footer-logo .logo-mark {
            width: 34px;
            height: 34px;
            border-radius: 6px;
            background: var(--primary);
            border: 1px solid var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-weight: 700;
            font-size: 16px;
        }
        .footer-logo span:last-child {
            color: var(--text-on-dark);
            font-size: 16px;
            font-weight: 700;
            letter-spacing: 0.5px;
        }
        .footer-desc {
            font-size: 13px;
            line-height: 1.8;
            color: var(--text-on-dark-light);
            max-width: 320px;
        }
        .footer-col-title {
            color: var(--text-on-dark);
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul li a {
            color: var(--text-on-dark-light);
            font-size: 13px;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-contact-item {
            font-size: 13px;
            color: var(--text-on-dark-light);
            margin-bottom: 8px;
            line-height: 1.6;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 18px 0;
            text-align: center;
        }
        .footer-bottom p {
            font-size: 12px;
            color: rgba(255,255,255,0.5);
        }
        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .leverage-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
            }
            .split-block {
                gap: 24px;
            }
        }
        @media (max-width: 768px) {
            .site-header .container {
                height: 60px;
            }
            .nav-links {
                display: none;
                position: fixed;
                top: 60px;
                left: 0;
                right: 0;
                background: var(--bg-dark);
                flex-direction: column;
                padding: 20px;
                gap: 0;
                border-bottom: 1px solid rgba(185, 138, 62, 0.15);
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                display: block;
                padding: 14px 8px;
                font-size: 15px;
                border-bottom: 1px solid rgba(255,255,255,0.06);
            }
            .nav-links a:last-of-type {
                border-bottom: none;
            }
            .nav-links a::after {
                display: none;
            }
            .nav-links a.active {
                background: rgba(185, 138, 62, 0.1);
                border-radius: 6px;
                padding-left: 14px;
            }
            .mobile-cta {
                display: block;
                padding-top: 16px;
            }
            .mobile-cta .btn {
                width: 100%;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-cta {
                display: none;
            }
            .leverage-grid {
                grid-template-columns: 1fr;
            }
            .calculator-wrap {
                grid-template-columns: 1fr;
                padding: 24px;
                gap: 20px;
            }
            .split-block {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .page-hero {
                padding: 40px 0 48px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .comparison-table-wrap {
                border-radius: var(--radius-sm);
            }
            .fee-list {
                padding: 20px 16px;
            }
            .faq-title-trigger {
                padding: 14px 16px;
                font-size: 14px;
            }
            .faq-answer {
                padding: 0 16px 14px 16px;
                margin-left: 0;
                font-size: 13px;
            }
        }
        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 24px;
            }
            .page-hero .hero-sub {
                font-size: 14px;
            }
            .section-heading h2 {
                font-size: 21px;
            }
            .leverage-card {
                padding: 20px 16px;
            }
            .calculator-result {
                padding: 20px 16px;
            }
            .cta-section h2 {
                font-size: 22px;
            }
            .btn {
                padding: 0 18px;
                font-size: 13px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #0E4F45;
            --primary-dark: #093B34;
            --primary-light: #1A6B5E;
            --accent: #B98A3E;
            --accent-light: #D4AF6A;
            --accent-bg: rgba(185, 138, 62, 0.12);
            --danger: #C8462E;
            --danger-bg: rgba(200, 70, 46, 0.08);
            --danger-border: rgba(200, 70, 46, 0.25);
            --bg: #F6F3EC;
            --bg-dark: #12211F;
            --bg-dark-soft: #1A2E2B;
            --white: #FFFFFF;
            --border: #E5DDCF;
            --border-input: #D8CFC0;
            --text: #1C2927;
            --text-light: #5A6B68;
            --text-lighter: #879693;
            --text-on-dark: #EDF2F0;
            --text-on-dark-light: #A8B8B4;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(18, 33, 31, 0.04);
            --shadow-md: 0 10px 30px rgba(18, 33, 31, 0.06);
            --shadow-lg: 0 14px 36px rgba(18, 33, 31, 0.12);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-num: 'Inter', 'Roboto', sans-serif;
            --container: 1200px;
            --gutter: 20px;
            --section-pad: 72px;
            --section-pad-mobile: 40px;
            --nav-height: 68px;
            --transition: 0.22s 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: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 10px;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: 1.5;
        }
        button {
            cursor: pointer;
            border: none;
            outline: none;
            background: none;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 var(--gutter);
        }
        .section {
            padding: var(--section-pad) 0;
        }
        .section-sm {
            padding: 48px 0;
        }
        .section-alt {
            background: var(--white);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-on-dark);
        }
        .section-tight {
            padding: 36px 0;
        }
        .text-center {
            text-align: center;
        }
        /* ========== HEADER / NAV ========== */
        .site-header {
            background: var(--bg-dark);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid rgba(185, 138, 62, 0.15);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: 24px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .nav-logo .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: 8px;
            background: var(--primary);
            border: 1px solid var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-weight: 700;
            font-size: 18px;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .nav-logo .logo-text {
            color: var(--text-on-dark);
            font-size: 17px;
            font-weight: 700;
            letter-spacing: 0.5px;
            line-height: 1.2;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 26px;
        }
        .nav-links a {
            color: var(--text-on-dark-light);
            font-size: 14px;
            font-weight: 500;
            position: relative;
            padding: 6px 0;
            transition: color var(--transition);
            letter-spacing: 0.3px;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 1px;
            transition: width var(--transition);
        }
        .nav-links a:hover {
            color: var(--text-on-dark);
        }
        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }
        .nav-links a.active {
            color: var(--accent);
        }
        .nav-cta {
            flex-shrink: 0;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 40px;
            height: 40px;
            padding: 8px;
            border-radius: 8px;
            border: 1px solid rgba(185, 138, 62, 0.3);
            background: transparent;
        }
        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--accent);
            border-radius: 1px;
            transition: all var(--transition);
        }
        .mobile-cta {
            display: none;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            padding: 0 22px;
            height: 44px;
            transition: all var(--transition);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
        }
        .btn-primary:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-primary:active {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-outline {
            background: transparent;
            color: var(--accent);
            border: 1px solid var(--accent);
        }
        .btn-outline:hover {
            background: var(--accent-bg);
            color: var(--primary);
            border-color: var(--accent);
        }
        .btn-outline-light {
            background: transparent;
            color: var(--text-on-dark);
            border: 1px solid rgba(185, 138, 62, 0.5);
        }
        .btn-outline-light:hover {
            background: rgba(185, 138, 62, 0.15);
            border-color: var(--accent);
            color: var(--accent-light);
        }
        .btn-lg {
            height: 52px;
            padding: 0 32px;
            font-size: 16px;
            border-radius: 10px;
        }
        /* ========== BREADCRUMB BANNER ========== */
        .page-banner {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            padding: 48px 0 56px;
            border-bottom: 1px solid rgba(185, 138, 62, 0.2);
            position: relative;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: radial-gradient(circle at 20% 30%, rgba(185, 138, 62, 0.08) 0%, transparent 55%),
                radial-gradient(circle at 80% 70%, rgba(14, 79, 69, 0.5) 0%, transparent 60%);
            pointer-events: none;
        }
        .page-banner .container {
            position: relative;
            z-index: 1;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-on-dark-light);
            margin-bottom: 18px;
        }
        .breadcrumb a {
            color: var(--text-on-dark-light);
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--accent-light);
        }
        .breadcrumb .sep {
            color: var(--accent);
            font-size: 12px;
        }
        .breadcrumb .current {
            color: var(--accent);
            font-weight: 500;
        }
        .page-banner h1 {
            font-size: 38px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.5px;
            color: var(--text-on-dark);
            margin-bottom: 14px;
            max-width: 780px;
        }
        .page-banner .subtitle {
            font-size: 16px;
            color: var(--text-on-dark-light);
            line-height: 1.8;
            max-width: 720px;
        }
        /* ========== SECTIONS GENERAL ========== */
        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            letter-spacing: -0.3px;
            margin-bottom: 12px;
        }
        .section-lead {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.8;
            max-width: 680px;
            margin-bottom: 36px;
        }
        .label-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.3px;
            background: var(--accent-bg);
            color: var(--accent);
            margin-bottom: 10px;
        }
        /* ========== SAFETY MECHANISM ========== */
        .safety-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .safety-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 26px 26px 24px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .safety-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .safety-card .card-number {
            font-family: var(--font-num);
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 1px;
            display: block;
            margin-bottom: 8px;
        }
        .safety-card h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .safety-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.75;
        }
        .safety-card .card-icon {
            position: absolute;
            top: 18px;
            right: 18px;
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            background: var(--accent-bg);
            color: var(--primary);
            font-weight: 700;
            font-size: 16px;
        }
        /* ========== SPLIT LAYOUT ========== */
        .split-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .split-layout.reverse {
            direction: rtl;
        }
        .split-layout.reverse > .split-text,
        .split-layout.reverse > .split-image {
            direction: ltr;
        }
        .split-text h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .split-text p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .split-image img {
            width: 100%;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
        }
        .check-list {
            list-style: none;
            padding: 0;
            margin: 16px 0 0;
        }
        .check-list li {
            padding-left: 30px;
            position: relative;
            font-size: 14px;
            color: var(--text);
            line-height: 1.7;
            margin-bottom: 10px;
        }
        .check-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            top: 0;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        /* ========== RISK CONTROL ========== */
        .risk-control-panel {
            background: var(--white);
            border: 1px solid var(--danger-border);
            border-radius: var(--radius-md);
            padding: 32px 32px 28px;
            box-shadow: var(--shadow-sm);
        }
        .risk-control-panel h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--danger);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .risk-control-panel h2 .badge-risk {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--danger);
            color: #fff;
            font-size: 13px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .risk-control-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .risk-control-list li {
            background: var(--danger-bg);
            border: 1px solid rgba(200, 70, 46, 0.15);
            border-radius: var(--radius-sm);
            padding: 16px 18px;
            font-size: 14px;
            line-height: 1.65;
            color: var(--text);
        }
        .risk-control-list li strong {
            display: block;
            color: var(--danger);
            font-weight: 700;
            margin-bottom: 4px;
            font-size: 14px;
        }
        .risk-note {
            margin-top: 18px;
            font-size: 13px;
            color: var(--danger);
            line-height: 1.7;
            padding: 12px 16px;
            background: var(--danger-bg);
            border-radius: var(--radius-sm);
            border-left: 3px solid var(--danger);
        }
        /* ========== SOFTWARE SAFETY ========== */
        .software-safety-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: stretch;
        }
        .software-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .software-list li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 16px 18px;
            transition: all var(--transition);
        }
        .software-list li:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-sm);
        }
        .software-list .li-num {
            width: 28px;
            height: 28px;
            border-radius: 6px;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 13px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-family: var(--font-num);
        }
        .software-list .li-text strong {
            display: block;
            font-size: 15px;
            color: var(--text);
            font-weight: 600;
        }
        .software-list .li-text span {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.6;
        }
        .software-image {
            background: var(--bg-dark-soft);
            border-radius: var(--radius-md);
            padding: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 260px;
            overflow: hidden;
            position: relative;
        }
        .software-image img {
            width: 100%;
            max-height: 320px;
            object-fit: cover;
            border-radius: 10px;
            box-shadow: var(--shadow-lg);
        }
        /* ========== ARTICLE CARDS ========== */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .article-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 22px 22px 20px;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .article-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .article-card .article-tag {
            font-size: 12px;
            font-weight: 500;
            color: var(--accent);
            background: var(--accent-bg);
            padding: 3px 10px;
            border-radius: 20px;
            display: inline-block;
            width: fit-content;
            letter-spacing: 0.3px;
        }
        .article-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            margin: 4px 0 6px;
        }
        .article-card h3 a {
            color: var(--text);
            transition: color var(--transition);
        }
        .article-card h3 a:hover {
            color: var(--primary);
        }
        .article-card p {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.7;
            flex-grow: 1;
        }
        .article-card .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: var(--text-lighter);
            border-top: 1px solid var(--border);
            padding-top: 12px;
        }
        .empty-state {
            text-align: center;
            color: var(--text-lighter);
            font-size: 14px;
            padding: 32px;
            background: var(--white);
            border: 1px dashed var(--border);
            border-radius: var(--radius-md);
        }
        /* ========== CTA BANNER ========== */
        .cta-banner {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(185, 138, 62, 0.15) 0%, transparent 65%);
            pointer-events: none;
        }
        .cta-banner h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-on-dark);
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-banner p {
            font-size: 15px;
            color: var(--text-on-dark-light);
            line-height: 1.7;
            max-width: 560px;
            margin: 0 auto 24px;
            position: relative;
            z-index: 1;
        }
        .cta-banner .btn-wrap {
            position: relative;
            z-index: 1;
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .cta-banner .btn-primary {
            background: var(--accent);
            border-color: var(--accent);
        }
        .cta-banner .btn-primary:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
        }
        .cta-banner .risk-disclaimer {
            font-size: 12px;
            color: var(--text-on-dark-light);
            margin-top: 18px;
            position: relative;
            z-index: 1;
            line-height: 1.6;
        }
        /* ========== RISK COMPLIANCE BAR ========== */
        .risk-compliance-bar {
            background: var(--danger-bg);
            border-top: 1px solid var(--danger-border);
            border-bottom: 1px solid var(--danger-border);
        }
        .risk-compliance-bar .container {
            padding-top: 20px;
            padding-bottom: 20px;
        }
        .risk-compliance-bar p {
            font-size: 13px;
            color: var(--danger);
            line-height: 1.7;
            margin: 0;
        }
        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-on-dark-light);
            padding-top: 56px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.4fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }
        .footer-brand .footer-logo .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: 8px;
            background: var(--primary);
            border: 1px solid var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-weight: 700;
            font-size: 18px;
            flex-shrink: 0;
        }
        .footer-brand .footer-logo span:last-child {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-on-dark);
            letter-spacing: 0.5px;
        }
        .footer-desc {
            font-size: 13px;
            color: var(--text-on-dark-light);
            line-height: 1.75;
        }
        .footer-col-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-on-dark);
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul a {
            font-size: 13px;
            color: var(--text-on-dark-light);
            transition: color var(--transition);
        }
        .footer-col ul a:hover {
            color: var(--accent-light);
        }
        .footer-contact-item {
            font-size: 13px;
            color: var(--text-on-dark-light);
            margin-bottom: 8px;
            line-height: 1.6;
        }
        .footer-bottom {
            border-top: 1px solid rgba(185, 138, 62, 0.2);
            padding: 18px 0;
        }
        .footer-bottom p {
            font-size: 12px;
            color: var(--text-on-dark-light);
            margin: 0;
            text-align: center;
        }
        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            :root {
                --section-pad: 56px;
            }
            .safety-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .split-layout {
                gap: 32px;
            }
            .article-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .software-safety-wrap {
                gap: 30px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-pad: 40px;
                --nav-height: 60px;
            }
            .site-header .container {
                gap: 14px;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--bg-dark);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 10px 20px 20px;
                border-bottom: 2px solid rgba(185, 138, 62, 0.25);
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                padding: 14px 0;
                font-size: 15px;
                border-bottom: 1px solid rgba(185, 138, 62, 0.1);
            }
            .nav-links a::after {
                display: none;
            }
            .nav-links a:last-child {
                border-bottom: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-cta {
                display: block;
                padding-top: 16px;
                border-top: 1px solid rgba(185, 138, 62, 0.2);
                margin-top: 10px;
            }
            .mobile-cta .btn {
                width: 100%;
            }
            .page-banner {
                padding: 32px 0 40px;
            }
            .page-banner h1 {
                font-size: 28px;
            }
            .page-banner .subtitle {
                font-size: 14px;
            }
            .section-title {
                font-size: 22px;
            }
            .safety-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .split-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .split-layout.reverse {
                direction: ltr;
            }
            .risk-control-list {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .software-safety-wrap {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .article-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .cta-banner {
                padding: 32px 24px;
            }
            .cta-banner h2 {
                font-size: 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .page-banner h1 {
                font-size: 24px;
                line-height: 1.35;
            }
            .breadcrumb {
                font-size: 12px;
                gap: 5px;
            }
            .safety-card {
                padding: 18px 18px 16px;
            }
            .risk-control-panel {
                padding: 20px 18px 18px;
            }
            .software-image {
                min-height: 180px;
                padding: 14px;
            }
            .btn-lg {
                height: 46px;
                padding: 0 22px;
                font-size: 14px;
            }
            .footer-grid {
                gap: 22px;
            }
            .site-footer {
                padding-top: 40px;
            }
        }