/* roulang page: index */
:root {
            --bg-base: #0e0c12;
            --bg-elevated: #17141d;
            --bg-soft: #221d2a;
            --primary: #d4a843;
            --primary-hover: #e8c46a;
            --secondary: #e34d8c;
            --text-main: #f1eef4;
            --text-muted: #a8a0b3;
            --text-faint: #6b6378;
            --line: #332c3e;
            --line-strong: #4a4158;
            --success: #4cc38a;
            --danger: #e55353;
            --gradient-hero: 135deg, rgba(227,77,140,0.22), rgba(212,168,67,0.12), rgba(14,12,18,0);
            --glow-active: 0 0 0 1px rgba(212,168,67,0.45), 0 0 18px rgba(212,168,67,0.18);
            --r-card: 12px;
            --r-btn: 6px;
            --r-tag: 999px;
            --shadow-card: 0 8px 24px rgba(0,0,0,0.28);
            --shadow-hover: 0 14px 34px rgba(0,0,0,0.4);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            background-color: var(--bg-base);
            color: var(--text-main);
            font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
            font-size: 0.95rem;
            line-height: 1.75;
            letter-spacing: 0.015em;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease;
        }

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

        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 0.95rem;
        }

        .container {
            max-width: 1180px;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: 64px;
            background: rgba(14, 12, 18, 0.86);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--line);
        }

        @media (min-width: 768px) {
            .site-header {
                height: 72px;
            }
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
        }

        .logo-mark {
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: var(--bg-base);
            border-radius: 6px;
            font-weight: 800;
            font-size: 0.9rem;
        }

        .logo-text {
            font-size: 1.05rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .logo-text .text-gold {
            color: var(--primary);
        }

        .main-nav {
            display: none;
            align-items: center;
            gap: 0.25rem;
            margin-left: 2rem;
        }

        @media (min-width: 1024px) {
            .main-nav {
                display: flex;
                flex: 1;
            }
        }

        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 0.75rem;
            color: var(--text-muted);
            font-size: 0.9rem;
            border-radius: 4px;
            position: relative;
            transition: color 0.25s ease;
            white-space: nowrap;
        }

        .main-nav a::after {
            content: "";
            position: absolute;
            bottom: -10px;
            left: 0.75rem;
            right: 0.75rem;
            height: 2px;
            background: var(--secondary);
            transform: scaleX(0);
            transform-origin: center;
            transition: transform 0.25s ease;
        }

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

        .main-nav a:hover::after {
            transform: scaleX(1);
        }

        .main-nav a.active {
            color: var(--primary);
            box-shadow: var(--glow-active);
            border-radius: 4px;
        }

        .main-nav a.active::after {
            transform: scaleX(1);
        }

        .header-cta {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-left: auto;
        }

        .btn-header {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            background: var(--primary);
            color: #0e0c12;
            font-weight: 700;
            font-size: 0.875rem;
            padding: 0.5rem 1rem;
            border-radius: var(--r-btn);
            transition: background 0.25s ease, box-shadow 0.25s ease;
            white-space: nowrap;
        }

        .btn-header:hover {
            background: var(--primary-hover);
            box-shadow: 0 0 16px rgba(212, 168, 67, 0.35);
        }

        .mobile-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            color: var(--text-muted);
            font-size: 1.35rem;
            border-radius: 6px;
            transition: color 0.2s ease, background 0.2s ease;
        }

        .mobile-toggle:hover {
            color: var(--text-main);
            background: var(--bg-soft);
        }

        @media (min-width: 1024px) {
            .mobile-toggle {
                display: none;
            }
        }

        /* Mobile drawer */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            background: var(--bg-elevated);
            border-bottom: 1px solid var(--line);
            padding: 1rem 1.5rem 1.5rem;
            z-index: 99;
            box-shadow: var(--shadow-card);
        }

        .mobile-drawer.open {
            display: flex;
            flex-direction: column;
            gap: 0.375rem;
        }

        .mobile-drawer a {
            display: block;
            padding: 0.75rem 1rem;
            border-radius: 8px;
            color: var(--text-muted);
            font-size: 0.95rem;
            transition: background 0.2s ease, color 0.2s ease;
        }

        .mobile-drawer a:hover {
            background: var(--bg-soft);
            color: var(--text-main);
        }

        .mobile-drawer a.active {
            color: var(--primary);
            background: var(--bg-soft);
            box-shadow: var(--glow-active);
        }

        .mobile-drawer .btn-header {
            margin-top: 0.75rem;
            justify-content: center;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            padding: 4.5rem 0 4rem;
            overflow: hidden;
            background: linear-gradient(var(--gradient-hero)) , url('/assets/images/backpic/back-1.png') no-repeat center/cover;
        }

        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(14, 12, 18, 0.65);
            z-index: 1;
        }

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

        .hero-content {
            max-width: 720px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(212, 168, 67, 0.12);
            border: 1px solid rgba(212, 168, 67, 0.35);
            color: var(--primary);
            font-size: 0.78rem;
            font-weight: 600;
            padding: 0.375rem 0.875rem;
            border-radius: var(--r-tag);
            letter-spacing: 0.03em;
            margin-bottom: 1.25rem;
        }

        .hero h1 {
            font-size: clamp(2.1rem, 4.5vw, 3.4rem);
            font-weight: 800;
            line-height: 1.18;
            letter-spacing: -0.01em;
            margin-bottom: 1.25rem;
        }

        .hero-desc {
            color: var(--text-muted);
            font-size: 1.05rem;
            line-height: 1.75;
            max-width: 600px;
            margin-bottom: 1rem;
        }

        .hero-desc strong {
            color: var(--text-main);
            font-weight: 600;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            margin-top: 1.75rem;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--primary);
            color: #0e0c12;
            font-weight: 700;
            font-size: 0.95rem;
            padding: 0.75rem 1.5rem;
            border-radius: var(--r-btn);
            transition: background 0.25s ease, box-shadow 0.25s ease, transform 0.15s ease;
            min-height: 46px;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            box-shadow: 0 0 16px rgba(212, 168, 67, 0.35);
        }

        .btn-primary:active {
            transform: scale(0.98);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: transparent;
            border: 1px solid var(--line-strong);
            color: var(--text-main);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.75rem 1.5rem;
            border-radius: var(--r-btn);
            min-height: 46px;
            transition: border-color 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
        }

        .btn-outline:hover {
            border-color: var(--primary);
            box-shadow: 0 0 12px rgba(212, 168, 67, 0.18);
            color: var(--primary-hover);
        }

        .btn-outline:active {
            background: var(--bg-soft);
        }

        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 1.25rem;
            margin-top: 2.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(51, 44, 62, 0.6);
        }

        .trust-item {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: var(--text-muted);
            font-size: 0.8rem;
        }

        .trust-item i {
            color: var(--primary);
            font-size: 0.85rem;
        }

        /* ===== Section Common ===== */
        .section {
            padding: 4rem 0;
        }

        @media (min-width: 768px) {
            .section {
                padding: 5rem 0;
            }
        }

        .section-head {
            margin-bottom: 2.5rem;
            max-width: 680px;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--secondary);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 0.5rem;
        }

        .section-title {
            font-size: 1.4rem;
            font-weight: 700;
            line-height: 1.35;
            letter-spacing: 0.01em;
            color: var(--text-main);
            margin-bottom: 0.75rem;
        }

        @media (min-width: 768px) {
            .section-title {
                font-size: 1.6rem;
            }
        }

        .section-desc {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.75;
        }

        /* ===== Pain Cards ===== */
        .pain-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
        }

        @media (min-width: 640px) {
            .pain-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .pain-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        .pain-card {
            background: var(--bg-elevated);
            border: 1px solid var(--line);
            border-radius: var(--r-card);
            padding: 1.75rem 1.5rem;
            box-shadow: var(--shadow-card);
            transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
        }

        .pain-card:hover {
            transform: translateY(-4px);
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
        }

        .pain-icon {
            width: 48px;
            height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(227, 77, 140, 0.1);
            color: var(--secondary);
            border-radius: 10px;
            font-size: 1.25rem;
            margin-bottom: 1rem;
        }

        .pain-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }

        .pain-card p {
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.7;
        }

        /* ===== Solution Cards ===== */
        .solution-section {
            background: linear-gradient(180deg, rgba(23, 20, 29, 0.4) 0%, rgba(14, 12, 18, 0) 100%);
        }

        .solution-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
        }

        @media (min-width: 640px) {
            .solution-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .solution-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        .solution-card {
            background: var(--bg-elevated);
            border: 1px solid var(--line-strong);
            border-radius: var(--r-card);
            padding: 2rem 1.5rem;
            box-shadow: var(--shadow-card);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            position: relative;
            overflow: hidden;
        }

        .solution-card::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            opacity: 0;
            transition: opacity 0.3s ease;
        }

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

        .solution-card:hover::after {
            opacity: 1;
        }

        .solution-icon {
            width: 48px;
            height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(212, 168, 67, 0.12);
            color: var(--primary);
            border-radius: 10px;
            font-size: 1.25rem;
            margin-bottom: 1.25rem;
        }

        .solution-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 0.75rem;
            line-height: 1.4;
        }

        .solution-card p {
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.7;
            margin-bottom: 1.25rem;
        }

        .link-arrow {
            color: var(--text-main);
            font-size: 0.88rem;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            transition: color 0.25s ease, gap 0.25s ease;
        }

        .link-arrow:hover {
            color: var(--primary);
            gap: 0.625rem;
        }

        .link-arrow i {
            font-size: 0.75rem;
        }

        /* ===== Stats ===== */
        .stats-section {
            background: var(--bg-elevated);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 2rem;
        }

        @media (min-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        .stat-item {
            text-align: center;
            padding: 0.5rem 0;
        }

        .stat-num {
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            letter-spacing: -0.01em;
        }

        .stat-label {
            color: var(--text-muted);
            font-size: 0.8rem;
            margin-top: 0.375rem;
        }

        .stat-item+.stat-item {
            border-left: 1px solid var(--line);
        }

        /* ===== Form Section ===== */
        .form-trigger-section {
            background: linear-gradient(135deg, rgba(227, 77, 140, 0.06), rgba(212, 168, 67, 0.04));
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }

        .form-trigger-wrap {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
            align-items: flex-start;
        }

        @media (min-width: 768px) {
            .form-trigger-wrap {
                flex-direction: row;
                align-items: center;
                justify-content: space-between;
            }
        }

        .form-trigger-text {
            max-width: 520px;
        }

        .form-trigger-text h2 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }

        .form-trigger-text p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .privacy-note {
            display: flex;
            align-items: center;
            gap: 0.375rem;
            color: var(--text-faint);
            font-size: 0.75rem;
            margin-top: 0.875rem;
        }

        .privacy-note i {
            color: var(--text-muted);
            font-size: 0.7rem;
        }

        /* ===== News / CMS List ===== */
        .news-item {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            background: var(--bg-elevated);
            border: 1px solid var(--line);
            border-radius: var(--r-card);
            padding: 1.25rem;
            margin-bottom: 1rem;
            transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
        }

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

        @media (min-width: 768px) {
            .news-item {
                flex-direction: row;
                align-items: center;
                justify-content: space-between;
            }
        }

        .news-info {
            flex: 1;
        }

        .news-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            align-items: center;
            margin-bottom: 0.375rem;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
            background: var(--bg-soft);
            border: 1px solid var(--line);
            color: var(--text-muted);
            font-size: 0.72rem;
            padding: 0.125rem 0.625rem;
            border-radius: var(--r-tag);
            line-height: 1.5;
        }

        .tag-gold {
            color: var(--primary);
            border-color: rgba(212, 168, 67, 0.35);
            background: rgba(212, 168, 67, 0.06);
        }

        .tag-pink {
            color: var(--secondary);
            border-color: rgba(227, 77, 140, 0.35);
            background: rgba(227, 77, 140, 0.06);
        }

        .news-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.5;
            margin-bottom: 0.25rem;
            transition: color 0.2s ease;
        }

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

        .news-excerpt {
            color: var(--text-muted);
            font-size: 0.85rem;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-thumb {
            flex-shrink: 0;
            width: 100%;
            height: 96px;
            border-radius: 8px;
            overflow: hidden;
            background: var(--bg-soft);
        }

        @media (min-width: 768px) {
            .news-thumb {
                width: 140px;
                height: 84px;
            }
        }

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

        .news-empty {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 3rem 1.5rem;
            background: var(--bg-elevated);
            border: 1px dashed var(--line-strong);
            border-radius: var(--r-card);
            text-align: center;
        }

        .news-empty i {
            color: var(--text-faint);
            font-size: 2rem;
            margin-bottom: 0.75rem;
        }

        .news-empty p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--line);
            border-radius: var(--r-card);
            background: var(--bg-elevated);
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: border-color 0.25s ease;
        }

        .faq-item[open] {
            border-color: var(--line-strong);
        }

        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            min-height: 48px;
            padding: 0.875rem 1.25rem;
            cursor: pointer;
            list-style: none;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-main);
            transition: color 0.25s ease;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

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

        .faq-item[open] summary {
            color: var(--primary);
        }

        .faq-item summary .faq-icon {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--bg-soft);
            border: 1px solid var(--line);
            color: var(--text-muted);
            font-size: 0.75rem;
            transition: transform 0.3s ease, background 0.3s ease, color 0.3s ease;
        }

        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
            background: rgba(212, 168, 67, 0.12);
            color: var(--primary);
            border-color: rgba(212, 168, 67, 0.35);
        }

        .faq-body {
            padding: 0 1.25rem 1.25rem;
            border-top: 1px solid var(--line);
        }

        .faq-body p {
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.75;
            padding-top: 1rem;
        }

        /* ===== CTA Banner ===== */
        .cta-banner {
            background: linear-gradient(135deg, rgba(212, 168, 67, 0.1), rgba(227, 77, 140, 0.05));
            border: 1px solid var(--line-strong);
            border-radius: var(--r-card);
            padding: 2rem 1.5rem;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 1rem;
        }

        @media (min-width: 768px) {
            .cta-banner {
                flex-direction: row;
                text-align: left;
                justify-content: space-between;
                padding: 2rem 2.5rem;
            }
        }

        .cta-banner-text h2 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 0.375rem;
        }

        .cta-banner-text p {
            color: var(--text-muted);
            font-size: 0.88rem;
        }

        .cta-banner .btn-primary,
        .cta-banner .btn-outline {
            flex-shrink: 0;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            justify-content: center;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-elevated);
            border-top: 1px solid var(--line);
            padding: 3.5rem 0 2rem;
            margin-top: 2rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            margin-bottom: 2.5rem;
        }

        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1.5fr;
            }
        }

        .footer-brand .logo-area {
            margin-bottom: 1rem;
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.85rem;
            line-height: 1.75;
            max-width: 320px;
        }

        .footer-col h3 {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col ul li {
            margin-bottom: 0.5rem;
        }

        .footer-col ul a {
            color: var(--text-muted);
            font-size: 0.85rem;
            transition: color 0.25s ease, padding-left 0.25s ease;
        }

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

        .footer-bottom {
            border-top: 1px solid var(--line);
            padding-top: 1.5rem;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
            color: var(--text-faint);
            font-size: 0.75rem;
        }

        @media (min-width: 768px) {
            .footer-bottom {
                flex-direction: row;
                align-items: center;
                justify-content: space-between;
            }
        }

        .footer-bottom a {
            color: var(--text-faint);
            transition: color 0.25s ease;
        }

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

        /* ===== Modal ===== */
        .modal-overlay {
            display: none;
            position: fixed;
            inset: 0;
            z-index: 200;
            background: rgba(14, 12, 18, 0.75);
            backdrop-filter: blur(4px);
        }

        .modal-overlay.active {
            display: flex;
            align-items: flex-end;
            justify-content: center;
        }

        @media (min-width: 768px) {
            .modal-overlay.active {
                align-items: center;
            }
        }

        .modal-card {
            background: var(--bg-elevated);
            border: 1px solid var(--line-strong);
            border-radius: 16px 16px 0 0;
            width: 100%;
            max-height: 92vh;
            overflow-y: auto;
            padding: 2rem 1.5rem 1.5rem;
            position: relative;
            box-shadow: var(--shadow-hover);
        }

        @media (min-width: 768px) {
            .modal-card {
                max-width: 480px;
                border-radius: 16px;
                padding: 2.25rem;
            }
        }

        .modal-close {
            position: absolute;
            top: 1rem;
            right: 1rem;
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 6px;
            color: var(--text-muted);
            font-size: 1rem;
            transition: color 0.25s ease, background 0.25s ease;
        }

        .modal-close:hover {
            color: var(--danger);
            background: rgba(229, 83, 83, 0.1);
        }

        .modal-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 0.375rem;
            line-height: 1.4;
        }

        .modal-sub {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin-bottom: 1.5rem;
        }

        .form-group {
            margin-bottom: 1.125rem;
        }

        .form-group label {
            display: block;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-main);
            margin-bottom: 0.375rem;
        }

        .form-group input,
        .form-group select {
            width: 100%;
            min-height: 44px;
            background: var(--bg-soft);
            border: 1px solid var(--line);
            border-radius: var(--r-btn);
            padding: 0.625rem 0.875rem;
            color: var(--text-main);
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
            appearance: none;
        }

        .form-group select {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='none'%3E%3Cpath d='M2.5 4.5L6 8L9.5 4.5' stroke='%23a8a0b3' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 0.875rem center;
            padding-right: 2.25rem;
        }

        .form-group input::placeholder {
            color: var(--text-faint);
        }

        .form-group input:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(227, 77, 140, 0.15);
        }

        .form-submit {
            width: 100%;
            min-height: 46px;
            background: var(--primary);
            color: #0e0c12;
            font-weight: 700;
            font-size: 0.95rem;
            border-radius: var(--r-btn);
            transition: background 0.25s ease, box-shadow 0.25s ease;
        }

        .form-submit:hover {
            background: var(--primary-hover);
            box-shadow: 0 0 16px rgba(212, 168, 67, 0.35);
        }

        .modal-privacy {
            color: var(--text-faint);
            font-size: 0.75rem;
            margin-top: 1rem;
            text-align: center;
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 8px;
        }

        ::-webkit-scrollbar-track {
            background: var(--bg-base);
        }

        ::-webkit-scrollbar-thumb {
            background: var(--line-strong);
            border-radius: 4px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--text-faint);
        }

        /* ===== Focus visible ===== */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
        }

        .news-item a:focus-visible {
            outline: 2px solid var(--primary);
        }

/* roulang page: category1 */
:root {
            --bg-base: #0e0c12;
            --bg-elevated: #17141d;
            --bg-soft: #221d2a;
            --primary: #d4a843;
            --primary-hover: #e8c46a;
            --secondary: #e34d8c;
            --text-main: #f1eef4;
            --text-muted: #a8a0b3;
            --text-faint: #6b6378;
            --line: #332c3e;
            --line-strong: #4a4158;
            --success: #4cc38a;
            --danger: #e55353;
            --gradient-hero: 135deg, rgba(227, 77, 140, 0.22), rgba(212, 168, 67, 0.12), rgba(14, 12, 18, 0);
            --glow-active: 0 0 0 1px rgba(212, 168, 67, 0.45), 0 0 18px rgba(212, 168, 67, 0.18);
            --r-card: 12px;
            --r-btn: 6px;
            --r-tag: 999px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.28);
            --shadow-hover: 0 14px 34px rgba(0, 0, 0, 0.4);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
            background: var(--bg-base);
            color: var(--text-main);
            line-height: 1.75;
            letter-spacing: 0.015em;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--text-main);
            text-decoration: none;
            transition: color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
        }

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

        input,
        select {
            font-family: inherit;
        }

        .container {
            max-width: 1180px;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        .text-gold {
            color: var(--primary);
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: 72px;
            background: rgba(14, 12, 18, 0.86);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--line);
        }

        .nav-wrap {
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 2rem;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.1rem;
            font-weight: 700;
            white-space: nowrap;
        }

        .logo-mark {
            color: var(--primary);
            font-size: 1.3rem;
            line-height: 1;
        }

        .logo-text {
            letter-spacing: 0.02em;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 1.5rem;
        }

        .main-nav a {
            position: relative;
            padding: 0.5rem 0.15rem;
            font-size: 0.95rem;
            color: var(--text-muted);
            letter-spacing: 0.02em;
            transition: color 0.2s ease;
        }

        .main-nav a::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 2px;
            background: var(--secondary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.25s ease;
        }

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

        .main-nav a:hover::after {
            transform: scaleX(1);
        }

        .main-nav a.active {
            color: var(--primary);
            box-shadow: var(--glow-active);
        }

        .main-nav a.active::after {
            transform: scaleX(1);
            background: var(--primary);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            height: 46px;
            padding: 0 1.5rem;
            border-radius: var(--r-btn);
            font-size: 0.95rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.1s ease;
        }

        .btn-primary {
            background: var(--primary);
            color: #0e0c12;
            border: 1px solid var(--primary);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            box-shadow: 0 0 16px rgba(212, 168, 67, 0.35);
        }

        .btn-primary:active {
            transform: translateY(1px);
        }

        .btn-outline {
            background: transparent;
            color: var(--text-main);
            border: 1px solid var(--line-strong);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: 0 0 12px rgba(212, 168, 67, 0.2);
        }

        .btn-outline:active {
            background: var(--bg-soft);
        }

        .btn-nav {
            height: 40px;
            padding: 0 1.1rem;
            font-size: 0.9rem;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            color: var(--text-main);
            font-size: 1.2rem;
            border: 1px solid var(--line);
            background: var(--bg-elevated);
            align-items: center;
            justify-content: center;
        }

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

        /* Mobile Nav */
        .mobile-nav {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            z-index: 99;
            background: var(--bg-elevated);
            border-bottom: 1px solid var(--line);
            padding: 1rem 1.25rem 1.5rem;
            flex-direction: column;
            gap: 0.35rem;
        }

        .mobile-nav.open {
            display: flex;
        }

        .mobile-nav a {
            padding: 0.85rem 0.75rem;
            border-radius: 8px;
            color: var(--text-muted);
            font-size: 1rem;
            border-left: 2px solid transparent;
        }

        .mobile-nav a:hover {
            background: var(--bg-soft);
            color: var(--text-main);
        }

        .mobile-nav a.active {
            color: var(--primary);
            border-left-color: var(--primary);
            background: var(--bg-soft);
            box-shadow: var(--glow-active);
        }

        /* Page Hero */
        .page-hero {
            position: relative;
            padding: 5rem 0 4rem;
            background-image: linear-gradient(rgba(14, 12, 18, 0.65), rgba(14, 12, 18, 0.78)), var(--gradient-hero), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid var(--line);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.8rem;
            color: var(--text-faint);
            margin-bottom: 1.5rem;
        }

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

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

        .breadcrumb .current {
            color: var(--text-muted);
        }

        .hero-title {
            font-size: clamp(2.1rem, 4.5vw, 3.2rem);
            font-weight: 800;
            line-height: 1.18;
            letter-spacing: -0.01em;
            color: var(--text-main);
        }

        .hero-sub {
            max-width: 640px;
            margin-top: 1.25rem;
            font-size: 1.02rem;
            color: var(--text-muted);
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-top: 2rem;
        }

        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 1.25rem;
            margin-top: 2.25rem;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .hero-trust span {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }

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

        /* Section base */
        .section {
            padding: 4.5rem 0;
        }

        .section-head {
            max-width: 720px;
            margin-bottom: 2.5rem;
        }

        .section-tag {
            display: inline-block;
            padding: 0.3rem 0.85rem;
            font-size: 0.75rem;
            color: var(--primary);
            border: 1px solid rgba(212, 168, 67, 0.35);
            border-radius: var(--r-tag);
            background: rgba(212, 168, 67, 0.06);
            margin-bottom: 1rem;
            letter-spacing: 0.04em;
        }

        .section-title {
            font-size: clamp(1.5rem, 2.6vw, 1.9rem);
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 0.9rem;
        }

        .section-sub {
            font-size: 0.98rem;
            color: var(--text-muted);
            line-height: 1.75;
        }

        /* Brand Rows */
        .brand-rows {
            padding: 4.5rem 0;
        }

        .brand-row {
            background: var(--bg-elevated);
            border: 1px solid var(--line);
            border-radius: var(--r-card);
            overflow: hidden;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }

        .brand-row:hover {
            border-color: var(--line-strong);
            box-shadow: var(--shadow-hover);
        }

        .brand-row-media {
            min-height: 260px;
            height: 100%;
        }

        .brand-row-media img {
            width: 100%;
            height: 100%;
            min-height: 260px;
            object-fit: cover;
            border-radius: 0;
        }

        .brand-row-body {
            padding: 2rem;
        }

        .brand-tag {
            display: inline-block;
            padding: 0.2rem 0.8rem;
            border-radius: var(--r-tag);
            font-size: 0.75rem;
            color: var(--primary);
            border: 1px solid rgba(212, 168, 67, 0.35);
            background: rgba(212, 168, 67, 0.06);
            margin-bottom: 1rem;
        }

        .brand-row-body h3 {
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 0.85rem;
            color: var(--text-main);
        }

        .brand-row-body p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.8;
            margin-bottom: 1.35rem;
        }

        .row-link {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.92rem;
            border-bottom: 1px solid transparent;
        }

        .row-link:hover {
            color: var(--primary-hover);
            border-bottom-color: var(--primary-hover);
        }

        /* Points */
        .section-points {
            background: var(--bg-elevated);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
            padding: 4.5rem 0;
        }

        .points-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            max-width: 860px;
        }

        .point-item {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            padding: 1rem 1.1rem;
            border-radius: 10px;
            border: 1px solid transparent;
            transition: background 0.2s ease, border-color 0.2s ease;
        }

        .point-item:hover {
            background: var(--bg-soft);
            border-color: var(--line);
        }

        .point-icon {
            flex: 0 0 36px;
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            background: rgba(212, 168, 67, 0.1);
            color: var(--primary);
            font-size: 0.95rem;
            margin-top: 0.2rem;
        }

        .point-text strong {
            display: block;
            font-size: 0.98rem;
            margin-bottom: 0.25rem;
            color: var(--text-main);
        }

        .point-text span {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.25rem;
            margin-top: 2rem;
        }

        .step-card {
            background: var(--bg-elevated);
            border: 1px solid var(--line);
            border-radius: var(--r-card);
            padding: 1.75rem 1.5rem;
            position: relative;
            transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
        }

        .step-card:hover {
            border-color: var(--line-strong);
            box-shadow: var(--shadow-card);
            transform: translateY(-3px);
        }

        .step-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
        }

        .step-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 0.6rem;
        }

        .step-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.75;
        }

        /* FAQ */
        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }

        details.faq-item {
            background: var(--bg-elevated);
            border: 1px solid var(--line);
            border-radius: 10px;
            margin-bottom: 0.9rem;
            overflow: hidden;
            transition: border-color 0.2s ease;
        }

        details.faq-item[open] {
            border-color: rgba(212, 168, 67, 0.45);
        }

        summary {
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            min-height: 52px;
            padding: 0.9rem 1.25rem;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-main);
            transition: color 0.2s ease;
        }

        summary::-webkit-details-marker {
            display: none;
        }

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

        details[open] summary {
            color: var(--primary);
            border-bottom: 1px solid var(--line);
        }

        .faq-icon {
            flex: 0 0 20px;
            font-size: 1.2rem;
            color: var(--text-faint);
            transition: transform 0.3s ease, color 0.2s ease;
            font-weight: 400;
        }

        details[open] .faq-icon {
            transform: rotate(45deg);
            color: var(--primary);
        }

        .faq-answer {
            padding: 1rem 1.25rem 1.2rem;
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.8;
        }

        /* CTA Bar */
        .section-cta-bar {
            padding: 0 0 4.5rem;
        }

        .cta-bar {
            background: linear-gradient(135deg, rgba(227, 77, 140, 0.14), rgba(212, 168, 67, 0.12)), var(--bg-elevated);
            border: 1px solid var(--line-strong);
            border-radius: 16px;
            padding: 2.5rem 2rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1.5rem;
            box-shadow: var(--shadow-card);
        }

        .cta-bar h2 {
            font-size: 1.45rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        .cta-bar p {
            color: var(--text-muted);
            font-size: 0.95rem;
            max-width: 560px;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 0.9rem;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-elevated);
            border-top: 1px solid var(--line);
            padding-top: 3.5rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
            padding-bottom: 3rem;
        }

        .footer-brand p {
            margin-top: 1rem;
            font-size: 0.88rem;
            color: var(--text-muted);
            max-width: 460px;
            line-height: 1.75;
        }

        .footer-col h3 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 1rem;
            letter-spacing: 0.03em;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }

        .footer-col ul a {
            font-size: 0.88rem;
            color: var(--text-muted);
        }

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

        .footer-bottom {
            border-top: 1px solid var(--line);
            padding: 1.35rem 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-faint);
        }

        /* Modal */
        .modal {
            display: none;
            position: fixed;
            inset: 0;
            z-index: 200;
            align-items: flex-end;
            justify-content: center;
        }

        .modal.open {
            display: flex;
        }

        .modal-mask {
            position: absolute;
            inset: 0;
            background: rgba(14, 12, 18, 0.78);
            backdrop-filter: blur(4px);
        }

        .modal-panel {
            position: relative;
            width: 100%;
            max-width: 480px;
            background: var(--bg-elevated);
            border: 1px solid var(--line-strong);
            border-radius: 16px 16px 0 0;
            padding: 2rem 1.5rem 1.75rem;
            max-height: 90vh;
            overflow-y: auto;
            box-shadow: var(--shadow-hover);
            animation: slideUp 0.3s ease;
        }

        @keyframes slideUp {
            from {
                transform: translateY(40px);
                opacity: 0;
            }
            to {
                transform: translateY(0);
                opacity: 1;
            }
        }

        .modal-close {
            position: absolute;
            top: 1rem;
            right: 1rem;
            width: 36px;
            height: 36px;
            border-radius: 8px;
            font-size: 1.3rem;
            color: var(--text-muted);
            border: 1px solid var(--line);
            background: var(--bg-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: color 0.2s ease, border-color 0.2s ease;
        }

        .modal-close:hover {
            color: var(--danger);
            border-color: var(--danger);
        }

        .modal-panel h2 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        .modal-sub {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 1.5rem;
        }

        .form-group {
            margin-bottom: 1rem;
        }

        .form-group label {
            display: block;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 0.35rem;
        }

        .form-group input,
        .form-group select {
            width: 100%;
            height: 44px;
            padding: 0 0.9rem;
            background: var(--bg-soft);
            border: 1px solid var(--line);
            border-radius: var(--r-btn);
            color: var(--text-main);
            font-size: 0.92rem;
            outline: none;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .form-group input::placeholder {
            color: var(--text-faint);
        }

        .form-group input:focus,
        .form-group select:focus {
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(227, 77, 140, 0.15);
        }

        .btn-block {
            width: 100%;
            margin-top: 0.5rem;
        }

        .form-privacy {
            margin-top: 0.9rem;
            font-size: 0.75rem;
            color: var(--text-faint);
            text-align: center;
            line-height: 1.6;
        }

        .form-success {
            margin-top: 0.9rem;
            font-size: 0.85rem;
            color: var(--success);
            text-align: center;
        }

        /* Responsive */
        @media (min-width: 640px) {
            .container {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }

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

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

        @media (min-width: 768px) {
            .steps-grid {
                grid-template-columns: repeat(4, 1fr);
            }

            .modal {
                align-items: center;
                padding: 1.5rem;
            }

            .modal-panel {
                border-radius: 16px;
                padding: 2rem 2rem 1.75rem;
            }
        }

        @media (min-width: 1024px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }

            .footer-grid {
                grid-template-columns: 1.4fr 1fr 1fr;
                gap: 3rem;
            }

            .brand-row-body {
                padding: 2.5rem;
            }
        }

        @media (max-width: 900px) {
            .main-nav {
                display: none;
            }

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

        @media (max-width: 640px) {
            .site-header {
                height: 64px;
            }

            .mobile-nav {
                top: 64px;
            }

            .page-hero {
                padding: 3.5rem 0 3rem;
            }

            .section {
                padding: 3.5rem 0;
            }

            .brand-rows {
                padding: 3.5rem 0;
            }

            .section-points {
                padding: 3.5rem 0;
            }

            .brand-row-body {
                padding: 1.5rem;
            }

            .cta-bar {
                padding: 2rem 1.25rem;
            }

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

        @media (max-width: 520px) {
            .logo-text {
                font-size: 1rem;
            }

            .btn-nav {
                display: none;
            }

            .hero-trust {
                flex-direction: column;
                gap: 0.6rem;
            }

            .cta-actions {
                width: 100%;
            }

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

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

/* roulang page: article */
:root {
  --bg-base: #0e0c12;
  --bg-elevated: #17141d;
  --bg-soft: #221d2a;
  --primary: #d4a843;
  --primary-hover: #e8c46a;
  --secondary: #e34d8c;
  --text-main: #f1eef4;
  --text-muted: #a8a0b3;
  --text-faint: #6b6378;
  --line: #332c3e;
  --line-strong: #4a4158;
  --success: #4cc38a;
  --danger: #e55353;
  --gradient-hero: 135deg, rgba(227,77,140,0.22), rgba(212,168,67,0.12), rgba(14,12,18,0);
  --glow-active: 0 0 0 1px rgba(212,168,67,0.45), 0 0 18px rgba(212,168,67,0.18);
  --r-card: 12px;
  --r-btn: 6px;
  --r-tag: 999px;
  --shadow-card: 0 8px 24px rgba(0,0,0,0.28);
  --shadow-hover: 0 14px 34px rgba(0,0,0,0.4);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", "Segoe UI", "Helvetica Neue", sans-serif;
  background: var(--bg-base);
  color: var(--text-main);
  line-height: 1.75;
  letter-spacing: 0.01em;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; transition: color 0.25s, border-color 0.25s, background 0.25s, box-shadow 0.25s; }
button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }
input, select, textarea { font: inherit; color: inherit; }

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 1rem;
}
@media (min-width: 768px) {
  .container { padding: 0 2rem; }
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 64px;
  background: rgba(14, 12, 18, 0.86);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  height: 64px;
  display: flex;
  align-items: center;
  gap: 1rem;
}
@media (min-width: 1024px) {
  .site-header { height: 72px; }
  .header-inner { height: 72px; }
}

.logo-area {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  flex-shrink: 0;
}
.logo-mark {
  color: var(--primary);
  font-size: 1rem;
  transform: rotate(45deg);
  display: inline-block;
}
.logo-text {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.text-gold { color: var(--primary); }

.main-nav {
  display: none;
  align-items: center;
  gap: 0.25rem;
  margin-left: 0.75rem;
}
@media (min-width: 768px) {
  .main-nav { display: flex; }
}
.main-nav a {
  position: relative;
  padding: 0.55rem 0.9rem;
  font-size: 0.95rem;
  color: var(--text-muted);
  border-radius: 6px;
  transition: color 0.25s, box-shadow 0.25s;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 20%;
  bottom: 2px;
  width: 0;
  height: 2px;
  background: var(--secondary);
  transition: width 0.25s;
}
.main-nav a:hover { color: var(--text-main); }
.main-nav a:hover::after { width: 60%; }
.main-nav a.active {
  color: var(--primary);
  box-shadow: var(--glow-active);
}
.main-nav a.active::after {
  width: 60%;
  background: var(--primary);
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--text-main);
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 6px;
  font-size: 1.1rem;
}
@media (min-width: 768px) {
  .nav-toggle { display: none; }
}

.header-cta { margin-left: auto; }
.header-cta i { font-size: 0.9rem; }

.main-nav.open {
  display: flex;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  flex-direction: column;
  align-items: stretch;
  gap: 0.25rem;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--line-strong);
  padding: 0.75rem 1rem 1rem;
  box-shadow: var(--shadow-card);
}
@media (max-width: 767px) {
  .header-cta { padding: 0 0.9rem; }
  .header-cta .cta-text { display: none; }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  height: 46px;
  padding: 0 1.5rem;
  border-radius: var(--r-btn);
  font-weight: 600;
  font-size: 0.95rem;
  transition: background 0.25s, box-shadow 0.25s, transform 0.15s, border-color 0.25s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: #0e0c12;
}
.btn-primary:hover {
  background: var(--primary-hover);
  box-shadow: 0 0 16px rgba(212, 168, 67, 0.35);
}
.btn-primary:active { transform: scale(0.98); }
.btn-outline {
  background: transparent;
  border: 1px solid var(--line-strong);
  color: var(--text-main);
}
.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: 0 0 12px rgba(212, 168, 67, 0.18);
}
.btn:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 2px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 2rem 0 1.25rem;
}
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: var(--text-faint); }
.crumb-current { color: var(--text-muted); max-width: 30ch; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.article-wrap {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow-card);
  padding: 2rem 1.25rem;
  margin-bottom: 3rem;
}
@media (min-width: 768px) {
  .article-wrap { padding: 3rem 3.5rem; }
}

.article-head {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--line);
}
.article-head h1 {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  line-height: 1.35;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--text-main);
  margin-bottom: 1rem;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.9rem;
  color: var(--text-muted);
  font-size: 0.85rem;
}
.article-meta i {
  color: var(--text-faint);
  margin-right: 0.3rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.75rem;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--r-tag);
  font-size: 0.8rem;
  color: var(--text-muted);
}
.tag-category {
  color: var(--primary);
  border-color: rgba(212, 168, 67, 0.35);
}
.tag-new {
  color: var(--secondary);
  border-color: rgba(227, 77, 140, 0.4);
}

.article-body {
  max-width: 78ch;
  margin: 0 auto;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-main);
  letter-spacing: 0.01em;
}
.article-body p { margin-bottom: 1.25em; }
.article-body h2,
.article-body h3 { margin: 1.5em 0 0.75em; line-height: 1.4; }
.article-body h2 {
  font-size: 1.4rem;
  padding-left: 0.75rem;
  border-left: 2px solid var(--primary);
}
.article-body h3 {
  font-size: 1.15rem;
  color: var(--primary);
}
.article-body blockquote {
  margin: 1.5em 0;
  padding: 1rem 1.25rem;
  background: var(--bg-soft);
  border-left: 3px solid var(--primary);
  color: var(--text-muted);
}
.article-body ul,
.article-body ol {
  margin-bottom: 1.25em;
  padding-left: 1.2em;
  color: var(--text-main);
}
.article-body li { margin-bottom: 0.45em; }
.article-body img {
  border-radius: 8px;
  margin: 1.5em 0;
}
.article-body a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-body a:hover { color: var(--primary-hover); }

.article-empty {
  text-align: center;
  padding: 4rem 1rem;
  color: var(--text-muted);
}
.article-empty i {
  font-size: 2.5rem;
  color: var(--text-faint);
  margin-bottom: 1rem;
}
.article-empty p { margin-bottom: 1rem; }
.article-empty a {
  display: inline-block;
  color: var(--primary);
  border-bottom: 1px solid rgba(212, 168, 67, 0.4);
  padding-bottom: 0.2rem;
}

.article-back {
  margin-top: 2.25rem;
  text-align: center;
}
.article-back a {
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: color 0.2s;
}
.article-back a:hover { color: var(--primary); }

.related-section {
  padding: 2rem 0 3rem;
}
.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 1.75rem;
  letter-spacing: 0.01em;
}
.related-card {
  display: block;
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
  height: 100%;
}
.related-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-hover);
}
.related-cover {
  height: 150px;
  overflow: hidden;
  position: relative;
}
.related-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s;
}
.related-card:hover .related-cover img { transform: scale(1.04); }
.related-body { padding: 1rem 1.1rem 1.1rem; }
.related-body h3 {
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text-main);
  margin-bottom: 0.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-card:hover .related-body h3 { color: var(--primary); }
.related-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.faq-section {
  padding: 1rem 0 3rem;
}
.faq-list { display: grid; gap: 0.75rem; }
.faq-list details {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  padding: 0 1.25rem;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.faq-list details[open] {
  border-color: var(--line-strong);
  box-shadow: 0 4px 14px rgba(0,0,0,0.2);
}
.faq-list summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  cursor: pointer;
  min-height: 48px;
  font-weight: 600;
  color: var(--text-main);
  list-style: none;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "+";
  font-size: 1.2rem;
  color: var(--primary);
  transition: transform 0.25s;
  flex-shrink: 0;
}
.faq-list details[open] summary { color: var(--primary); }
.faq-list details[open] summary::after { transform: rotate(45deg); }
.faq-list details p {
  padding: 0 0 1rem;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.75;
}

.cta-section {
  padding: 1rem 0 3.5rem;
}
.cta-card {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: center;
  justify-content: space-between;
  background:
    linear-gradient(120deg, rgba(227,77,140,0.14), rgba(212,168,67,0.08)),
    url('/assets/images/backpic/back-2.png') center / cover no-repeat;
  border: 1px solid var(--line-strong);
  border-radius: 16px;
  padding: 2.5rem 2rem;
  position: relative;
  overflow: hidden;
}
.cta-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(14, 12, 18, 0.6);
}
.cta-content {
  position: relative;
  z-index: 1;
  max-width: 58ch;
}
.cta-content h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.5rem;
}
.cta-content p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}
.cta-card .btn { position: relative; z-index: 1; flex-shrink: 0; }

.site-footer {
  background: var(--bg-elevated);
  border-top: 1px solid var(--line);
  padding: 3.5rem 0 2rem;
  margin-top: 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding-bottom: 2rem;
}
@media (min-width: 768px) {
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
}
.footer-brand .logo-area { display: inline-flex; }
.footer-brand p {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 36ch;
}
.footer-col h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 1rem;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.6rem; }
.footer-col a {
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--primary); }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  padding-top: 1.5rem;
  font-size: 0.8rem;
  color: var(--text-faint);
}

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  background: rgba(14, 12, 18, 0.74);
  padding: 1rem;
  transition: opacity 0.25s;
}
.modal-overlay[hidden] { display: none; }
.modal {
  position: relative;
  background: var(--bg-elevated);
  border: 1px solid var(--line-strong);
  border-radius: 16px 16px 0 0;
  width: 100%;
  max-width: 520px;
  padding: 1.75rem;
  max-height: 90vh;
  overflow: auto;
  box-shadow: var(--shadow-hover);
}
@media (min-width: 640px) {
  .modal-overlay { align-items: center; }
  .modal { border-radius: 16px; }
}
.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  background: var(--bg-soft);
  color: var(--text-muted);
  font-size: 1.1rem;
  transition: color 0.2s, background 0.2s;
}
.modal-close:hover { color: var(--danger); background: rgba(229,83,83,0.1); }
.modal h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.35rem;
}
.modal .sub-text {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 1.25rem;
}
.form-group { margin-bottom: 1rem; }
.form-group label {
  display: block;
  font-size: 0.85rem;
  margin-bottom: 0.4rem;
  color: var(--text-muted);
}
.form-group input,
.form-group select {
  width: 100%;
  height: 44px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0 0.9rem;
  color: var(--text-main);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--secondary);
  box-shadow: 0 0 0 3px rgba(227, 77, 140, 0.15);
}
.form-group select option {
  background: var(--bg-elevated);
  color: var(--text-main);
}
.privacy {
  margin-top: 1rem;
  font-size: 0.8rem;
  color: var(--text-faint);
  line-height: 1.5;
}
.modal form .btn { width: 100%; }

@media (max-width: 640px) {
  .article-wrap { padding: 1.5rem 1rem; }
  .article-meta { gap: 0.45rem 0.7rem; font-size: 0.8rem; }
  .related-section { padding-top: 1rem; }
  .cta-card { padding: 1.75rem 1.25rem; }
  .cta-content h2 { font-size: 1.2rem; }
  .footer-bottom { flex-direction: column; }
}

:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 2px;
}

/* roulang page: category2 */
:root {
            --bg-base: #0e0c12;
            --bg-elevated: #17141d;
            --bg-soft: #221d2a;
            --primary: #d4a843;
            --primary-hover: #e8c46a;
            --secondary: #e34d8c;
            --text-main: #f1eef4;
            --text-muted: #a8a0b3;
            --text-faint: #6b6378;
            --line: #332c3e;
            --line-strong: #4a4158;
            --success: #4cc38a;
            --danger: #e55353;
            --gradient-hero: 135deg, rgba(227, 77, 140, 0.22), rgba(212, 168, 67, 0.12), rgba(14, 12, 18, 0);
            --glow-active: 0 0 0 1px rgba(212, 168, 67, 0.45), 0 0 18px rgba(212, 168, 67, 0.18);
            --r-card: 12px;
            --r-btn: 6px;
            --r-tag: 999px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.28);
            --shadow-hover: 0 14px 34px rgba(0, 0, 0, 0.4);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            background: var(--bg-base);
            color: var(--text-main);
            font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
            line-height: 1.75;
            font-size: 1rem;
            letter-spacing: 0.01em;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        .container,
        .wrap {
            max-width: 1180px;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (min-width: 768px) {
            .container,
            .wrap {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        .main-nav,
        .mobile-menu,
        .site-footer,
        .hero,
        .section,
        .faq-item,
        .card,
        .step-card,
        .scenario-item,
        .cta-panel,
        .alt-media img {
            font-size: 0.95rem;
        }

        .text-gold {
            color: var(--primary);
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: 64px;
            background: rgba(14, 12, 18, 0.86);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--line);
        }

        @media (min-width: 768px) {
            .site-header {
                height: 72px;
            }
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 1rem;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.1rem;
            white-space: nowrap;
        }

        .logo-mark {
            color: var(--primary);
            font-size: 1.1rem;
            line-height: 1;
        }

        .main-nav {
            display: none;
            align-items: center;
            gap: 0.25rem;
        }

        @media (min-width: 768px) {
            .main-nav {
                display: flex;
            }
        }

        .main-nav a {
            position: relative;
            padding: 0.5rem 0.9rem;
            color: var(--text-muted);
            border-radius: 6px;
            transition: color 0.2s ease, box-shadow 0.2s ease;
        }

        .main-nav a::after {
            content: "";
            position: absolute;
            left: 0.9rem;
            right: 0.9rem;
            bottom: -2px;
            height: 2px;
            background: var(--secondary);
            transform: scaleX(0);
            transition: transform 0.2s ease;
        }

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

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

        .main-nav a.active {
            color: var(--primary);
            box-shadow: var(--glow-active);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .menu-toggle {
            display: inline-flex;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            background: none;
            border: none;
            padding: 10px;
            cursor: pointer;
            border-radius: 6px;
        }

        .menu-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: transform 0.2s ease, opacity 0.2s ease;
        }

        .menu-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .menu-toggle.open span:nth-child(2) {
            opacity: 0;
        }

        .menu-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        @media (min-width: 768px) {
            .menu-toggle {
                display: none;
            }
        }

        .mobile-menu {
            display: none;
            position: absolute;
            top: 64px;
            left: 0;
            right: 0;
            background: var(--bg-elevated);
            border-bottom: 1px solid var(--line);
            padding: 1rem 1.25rem 1.5rem;
            box-shadow: var(--shadow-hover);
        }

        .mobile-menu.open {
            display: block;
        }

        .mobile-menu a {
            display: block;
            padding: 0.8rem 0.6rem;
            color: var(--text-muted);
            border-radius: 6px;
            transition: background 0.2s ease, color 0.2s ease;
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--primary);
            background: var(--bg-soft);
        }

        .mobile-menu .btn-primary {
            width: 100%;
            margin-top: 0.75rem;
        }

        /* ===== Buttons ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 46px;
            padding: 0 1.5rem;
            border-radius: var(--r-btn);
            background: var(--primary);
            color: #0e0c12;
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: background 0.2s ease, box-shadow 0.2s ease, transform 0.1s ease;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            box-shadow: 0 0 16px rgba(212, 168, 67, 0.35);
        }

        .btn-primary:active {
            transform: translateY(1px);
        }

        .btn-sm {
            height: 38px;
            padding: 0 1.1rem;
            font-size: 0.88rem;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 46px;
            padding: 0 1.5rem;
            border-radius: var(--r-btn);
            background: transparent;
            border: 1px solid var(--line-strong);
            color: var(--text-main);
            font-size: 0.95rem;
            cursor: pointer;
            transition: border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
            white-space: nowrap;
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: 0 0 12px rgba(212, 168, 67, 0.2);
        }

        .btn-outline:active {
            background: var(--bg-soft);
        }

        .btn-primary:focus-visible,
        .btn-outline:focus-visible,
        .form-input:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            padding: 4rem 0 3.5rem;
            background:
                linear-gradient(var(--gradient-hero)),
                linear-gradient(rgba(14, 12, 18, 0.65), rgba(14, 12, 18, 0.65)),
                url('/assets/images/backpic/back-1.png') center / cover no-repeat;
            border-bottom: 1px solid var(--line);
        }

        @media (min-width: 768px) {
            .hero {
                padding: 5.5rem 0 4.5rem;
            }
        }

        .hero-grid {
            display: grid;
            gap: 2.5rem;
            align-items: center;
        }

        @media (min-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1.1fr 0.9fr;
            }
        }

        .hero-eyebrow {
            margin-bottom: 1rem;
        }

        .hero h1 {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: 0.01em;
            margin-bottom: 1rem;
        }

        .hero-lead {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 54ch;
            margin-bottom: 1.75rem;
            line-height: 1.85;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 0.9rem;
            margin-bottom: 1.5rem;
        }

        .trust-row {
            display: flex;
            flex-wrap: wrap;
            gap: 1.25rem;
            color: var(--text-muted);
            font-size: 0.8rem;
            padding-top: 1rem;
            border-top: 1px solid var(--line);
        }

        .trust-row span {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }

        .trust-row span::before {
            content: "✓";
            color: var(--success);
            font-weight: 700;
        }

        .hero-image-card {
            background: var(--bg-elevated);
            border: 1px solid var(--line);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .hero-image-card img {
            width: 100%;
            height: 250px;
            object-fit: cover;
        }

        @media (min-width: 1024px) {
            .hero-image-card img {
                height: 300px;
            }
        }

        .hero-card-foot {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 0.75rem;
            padding: 1rem 1.25rem;
        }

        /* ===== Tags ===== */
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.25rem 0.75rem;
            border-radius: var(--r-tag);
            background: var(--bg-soft);
            border: 1px solid var(--line);
            color: var(--text-muted);
            font-size: 0.78rem;
            line-height: 1.4;
            white-space: nowrap;
        }

        .tag-gold {
            color: var(--primary);
            border-color: rgba(212, 168, 67, 0.35);
        }

        .tag-pink {
            color: var(--secondary);
            border-color: rgba(227, 77, 140, 0.4);
        }

        /* ===== Section ===== */
        .section {
            padding: 3.5rem 0;
        }

        @media (min-width: 768px) {
            .section {
                padding: 5rem 0;
            }
        }

        .section-head {
            margin-bottom: 2.25rem;
        }

        .section-title {
            font-size: clamp(1.4rem, 2.4vw, 1.6rem);
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 0.75rem;
        }

        .section-desc {
            color: var(--text-muted);
            max-width: 62ch;
            line-height: 1.75;
        }

        /* ===== Cards Grid ===== */
        .cards-grid {
            display: grid;
            gap: 1.5rem;
            grid-template-columns: 1fr;
        }

        @media (min-width: 640px) {
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .cards-grid.cards-4 {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        .card {
            background: var(--bg-elevated);
            border: 1px solid var(--line);
            border-radius: var(--r-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .card:hover {
            transform: translateY(-4px);
            border-color: var(--line-strong);
            box-shadow: var(--shadow-hover);
        }

        .card-media img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }

        .card-body {
            padding: 1.25rem;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .card-body h3 {
            font-size: 1.08rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--text-main);
        }

        .card-body p {
            color: var(--text-muted);
            line-height: 1.7;
            font-size: 0.9rem;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0.75rem;
        }

        .card-link {
            color: var(--primary);
            font-size: 0.88rem;
            font-weight: 600;
            margin-top: auto;
            transition: color 0.2s ease;
        }

        .card-link:hover {
            color: var(--primary-hover);
            text-decoration: underline;
        }

        /* ===== Alternating Blocks ===== */
        .alt-grid {
            display: grid;
            gap: 2rem;
            align-items: center;
            margin-bottom: 2.5rem;
        }

        @media (min-width: 768px) {
            .alt-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2.5rem;
            }
        }

        .alt-grid.reverse .alt-media {
            order: 0;
        }

        @media (min-width: 768px) {
            .alt-grid.reverse .alt-media {
                order: 2;
            }
        }

        .alt-media img {
            width: 100%;
            height: 240px;
            object-fit: cover;
            border-radius: 12px;
            border: 1px solid var(--line);
        }

        .alt-content h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        .alt-content>p {
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 1rem;
        }

        .alt-content ul {
            list-style: none;
        }

        .alt-content li {
            position: relative;
            padding-left: 1.5rem;
            color: var(--text-muted);
            margin-bottom: 0.55rem;
            font-size: 0.92rem;
        }

        .alt-content li::before {
            content: "◆";
            position: absolute;
            left: 0;
            top: 0.1em;
            color: var(--primary);
            font-size: 0.7rem;
        }

        /* ===== Process ===== */
        .steps-grid {
            display: grid;
            gap: 1.25rem;
            grid-template-columns: 1fr;
        }

        @media (min-width: 640px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        .step-card {
            background: var(--bg-elevated);
            border: 1px solid var(--line);
            border-radius: var(--r-card);
            padding: 1.5rem;
            transition: border-color 0.2s ease, transform 0.2s ease;
        }

        .step-card:hover {
            border-color: var(--primary);
            transform: translateY(-3px);
        }

        .step-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 0.75rem;
        }

        .step-title {
            font-weight: 600;
            margin-bottom: 0.4rem;
        }

        .step-desc {
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.7;
        }

        /* ===== Scenario List ===== */
        .scenario-list {
            display: grid;
            gap: 1rem;
            grid-template-columns: 1fr;
        }

        @media (min-width: 768px) {
            .scenario-list {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        .scenario-item {
            display: flex;
            gap: 1rem;
            padding: 1.25rem;
            background: var(--bg-elevated);
            border: 1px solid var(--line);
            border-radius: var(--r-card);
            transition: background 0.2s ease, border-color 0.2s ease;
        }

        .scenario-item:hover {
            background: var(--bg-soft);
            border-color: var(--line-strong);
        }

        .scenario-icon {
            color: var(--secondary);
            font-size: 1.2rem;
            flex-shrink: 0;
            line-height: 1.4;
        }

        .scenario-title {
            font-weight: 600;
            margin-bottom: 0.3rem;
        }

        .scenario-desc {
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.7;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-elevated);
            border: 1px solid var(--line);
            border-radius: var(--r-card);
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: border-color 0.2s ease;
        }

        .faq-item[open] {
            border-color: var(--primary);
        }

        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 0 1.25rem;
            height: 48px;
            font-weight: 600;
            cursor: pointer;
            list-style: none;
            font-size: 0.95rem;
            color: var(--text-main);
            transition: color 0.2s ease;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item[open] summary {
            color: var(--primary);
        }

        .faq-icon {
            color: var(--secondary);
            font-size: 1.1rem;
            font-weight: 700;
            flex-shrink: 0;
            transition: transform 0.2s ease;
        }

        .faq-item[open] .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 1rem 1.25rem 1.25rem;
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.75;
            border-top: 1px solid var(--line);
        }

        /* ===== CTA ===== */
        .cta-panel {
            background:
                linear-gradient(135deg, rgba(212, 168, 67, 0.16), rgba(227, 77, 140, 0.1)),
                var(--bg-elevated);
            border: 1px solid var(--line-strong);
            border-radius: 16px;
            padding: 2rem;
            display: grid;
            gap: 2rem;
            box-shadow: var(--shadow-card);
        }

        @media (min-width: 768px) {
            .cta-panel {
                grid-template-columns: 1.2fr 1fr;
                align-items: center;
                padding: 3rem;
            }
        }

        .cta-panel h2 {
            font-size: clamp(1.3rem, 2vw, 1.6rem);
            font-weight: 700;
            margin-bottom: 0.75rem;
        }

        .cta-panel .cta-text p {
            color: var(--text-muted);
            line-height: 1.75;
            max-width: 46ch;
        }

        .cta-form {
            display: grid;
            gap: 0.75rem;
            grid-template-columns: 1fr;
        }

        @media (min-width: 640px) {
            .cta-form {
                grid-template-columns: 1fr 1fr;
            }

            .cta-form .btn-primary {
                grid-column: 1 / -1;
                width: 100%;
            }
        }

        .form-input {
            height: 44px;
            width: 100%;
            background: var(--bg-soft);
            border: 1px solid var(--line);
            border-radius: 6px;
            padding: 0 0.9rem;
            color: var(--text-main);
            font-size: 0.92rem;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .form-input::placeholder {
            color: var(--text-faint);
        }

        .form-input:focus {
            outline: none;
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(227, 77, 140, 0.15);
        }

        .privacy-note {
            color: var(--text-faint);
            font-size: 0.8rem;
            line-height: 1.5;
            margin-top: 0.75rem;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-elevated);
            border-top: 1px solid var(--line);
            padding: 3rem 0 0;
            margin-top: 4rem;
        }

        .footer-grid {
            display: grid;
            gap: 2rem;
            grid-template-columns: 1fr;
        }

        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
            }
        }

        .footer-brand .logo-area {
            margin-bottom: 0.75rem;
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.88rem;
            max-width: 42ch;
            line-height: 1.75;
        }

        .footer-col h3 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col li {
            margin-bottom: 0.6rem;
        }

        .footer-col a {
            color: var(--text-muted);
            font-size: 0.88rem;
            transition: color 0.2s ease;
        }

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

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 0.75rem;
            border-top: 1px solid var(--line);
            margin-top: 2.5rem;
            padding: 1.25rem 0;
            color: var(--text-faint);
            font-size: 0.8rem;
        }

        @media (max-width: 640px) {
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /* ===== Misc ===== */
        .section-divider {
            border: none;
            border-top: 1px solid var(--line);
        }