/* roulang page: index */
:root {
  --primary: #0a1f44;
  --primary-light: #153a7a;
  --primary-lighter: #e8edf7;
  --accent: #e8a33d;
  --accent-light: #f5c268;
  --accent-dark: #c88527;
  --bg: #f5f7fa;
  --white: #ffffff;
  --dark-bg: #0b1322;
  --text: #182235;
  --text-secondary: #56677d;
  --text-muted: #8b9bb0;
  --border: #e3e8f0;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(10, 31, 68, .06);
  --shadow-md: 0 8px 24px rgba(10, 31, 68, .08);
  --shadow-lg: 0 16px 44px rgba(10, 31, 68, .12);
  --transition: all .3s ease;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif; background: var(--bg); color: var(--text); line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button, input, textarea { font-family: inherit; }
ul, ol { list-style: none; }

.container { max-width: 1240px; margin: 0 auto; padding: 0 24px; }

/* ===== Header / Nav ===== */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.86); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); border-bottom: 1px solid rgba(227,232,240,.7); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 74px; gap: 24px; }
.brand { font-size: 24px; font-weight: 800; letter-spacing: -0.5px; color: var(--primary); white-space: nowrap; }
.brand em { font-style: normal; color: var(--accent); }
.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav a { padding: 8px 16px; border-radius: 40px; font-size: 15px; font-weight: 600; color: var(--text-secondary); transition: var(--transition); }
.main-nav a:hover { color: var(--primary); background: var(--primary-lighter); }
.main-nav a.active { color: var(--primary); background: var(--primary-lighter); }
.header-actions { display: flex; align-items: center; gap: 12px; }
.search-box { position: relative; display: flex; align-items: center; }
.search-box input { width: 190px; height: 42px; border: 1px solid var(--border); border-radius: 40px; padding: 0 18px 0 38px; font-size: 14px; outline: none; background: #f4f6fa; transition: var(--transition); }
.search-box input:focus { border-color: var(--accent); background: var(--white); box-shadow: 0 0 0 3px rgba(232,163,61,.15); width: 220px; }
.search-box i { position: absolute; left: 16px; color: var(--text-muted); pointer-events: none; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 40px; font-weight: 600; font-size: 15px; padding: 11px 26px; transition: var(--transition); cursor: pointer; border: 2px solid transparent; }
.btn-primary { background: var(--primary); color: var(--white); box-shadow: 0 4px 14px rgba(10,31,68,.2); }
.btn-primary:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(10,31,68,.28); }
.btn-accent { background: var(--accent); color: var(--primary); box-shadow: 0 4px 14px rgba(232,163,61,.3); }
.btn-accent:hover { background: var(--accent-light); transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--white); border-color: rgba(255,255,255,.6); }
.btn-ghost:hover { background: rgba(255,255,255,.12); border-color: var(--white); }
.btn-sm { padding: 8px 18px; font-size: 14px; }
.btn-lg { padding: 16px 36px; font-size: 16px; }
a.btn, button.btn { line-height: 1.2; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--primary); border-radius: 2px; transition: var(--transition); }
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Hero ===== */
.hero { position: relative; padding: 130px 0 120px; overflow: hidden; background: var(--dark-bg); color: var(--white); }
.hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; opacity: .45; }
.hero:before { content: ""; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(10,31,68,.92) 0%, rgba(10,31,68,.68) 50%, rgba(10,31,68,.35) 100%); }
.hero-overlay { position: absolute; inset: 0; background: radial-gradient(circle at 80% 20%, rgba(232,163,61,.18) 0%, transparent 60%); }
.hero-content { position: relative; z-index: 2; max-width: 820px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.2); padding: 8px 20px; border-radius: 40px; font-size: 14px; font-weight: 500; color: rgba(255,255,255,.9); backdrop-filter: blur(6px); margin-bottom: 28px; }
.hero-badge i { color: var(--accent); }
.hero h1 { font-size: 62px; line-height: 1.12; font-weight: 800; letter-spacing: -2px; margin-bottom: 22px; }
.hero h1 span { color: var(--accent); }
.hero p { font-size: 18px; line-height: 1.8; color: rgba(255,255,255,.85); max-width: 640px; margin-bottom: 36px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 60px; }
.hero-stats { display: flex; gap: 44px; flex-wrap: wrap; border-top: 1px solid rgba(255,255,255,.14); padding-top: 34px; }
.hero-stats .stat strong { display: block; font-size: 32px; font-weight: 800; color: var(--accent); line-height: 1.2; }
.hero-stats .stat span { font-size: 14px; color: rgba(255,255,255,.7); }

/* ===== Section ===== */
.section { padding: 96px 0; }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 56px; }
.section-tag { display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; color: var(--accent); background: rgba(232,163,61,.12); padding: 6px 16px; border-radius: 40px; margin-bottom: 14px; }
.section-head h2 { font-size: 40px; line-height: 1.2; font-weight: 800; letter-spacing: -1px; color: var(--primary); }
.section-head p { font-size: 16px; color: var(--text-secondary); margin-top: 14px; }

/* ===== Features ===== */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feature-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 40px 32px; transition: var(--transition); position: relative; overflow: hidden; }
.feature-card:before { content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 3px; background: linear-gradient(90deg, var(--accent), var(--accent-light)); transform: scaleX(0); transform-origin: left; transition: var(--transition); }
.feature-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.feature-card:hover:before { transform: scaleX(1); }
.feature-icon { width: 64px; height: 64px; border-radius: 18px; display: flex; align-items: center; justify-content: center; font-size: 26px; color: var(--accent); background: linear-gradient(135deg, rgba(232,163,61,.15), rgba(232,163,61,.06)); margin-bottom: 24px; }
.feature-card h3 { font-size: 22px; font-weight: 700; margin-bottom: 12px; color: var(--primary); }
.feature-card p { font-size: 15px; color: var(--text-secondary); line-height: 1.7; }

/* ===== Category Cards ===== */
.categories-section { background: var(--white); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.category-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.category-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; transition: var(--transition); display: block; }
.category-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-6px); }
.category-img { position: relative; height: 200px; overflow: hidden; }
.category-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.category-card:hover .category-img img { transform: scale(1.08); }
.category-img:after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, rgba(10,31,68,.35)); }
.category-body { padding: 26px; }
.category-body h3 { font-size: 20px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.category-body p { font-size: 14px; color: var(--text-secondary); line-height: 1.65; margin-bottom: 18px; }
.btn-link { display: inline-flex; align-items: center; gap: 8px; font-size: 15px; font-weight: 600; color: var(--accent); transition: var(--transition); }
.btn-link i { transition: transform .3s ease; }
.btn-link:hover { color: var(--accent-dark); }
.btn-link:hover i { transform: translateX(5px); }

/* ===== Post Cards / Latest ===== */
.post-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.post-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px; transition: var(--transition); }
.post-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); border-color: var(--accent); }
.post-cat { display: inline-block; background: var(--primary-lighter); color: var(--primary); font-size: 13px; font-weight: 600; padding: 4px 14px; border-radius: 40px; margin-bottom: 14px; }
.post-card h3 { font-size: 19px; font-weight: 700; color: var(--text); line-height: 1.4; margin-bottom: 10px; transition: var(--transition); }
.post-card:hover h3 { color: var(--primary); }
.post-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.65; margin-bottom: 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.post-card time { font-size: 13px; color: var(--text-muted); }
.empty-tip { grid-column: 1 / -1; text-align: center; padding: 48px; color: var(--text-muted); font-size: 16px; background: var(--white); border-radius: var(--radius-lg); border: 1px dashed var(--border); }

/* ===== Stats Dark ===== */
.stats-section { background: var(--dark-bg); color: var(--white); padding: 80px 0; position: relative; overflow: hidden; }
.stats-section:before { content: ""; position: absolute; top: -60%; left: -20%; width: 400px; height: 400px; background: radial-gradient(circle, rgba(232,163,61,.18), transparent 70%); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 42px; position: relative; }
.stat-item { text-align: center; }
.stat-item strong { display: block; font-size: 48px; font-weight: 800; color: var(--accent); line-height: 1.1; margin-bottom: 10px; }
.stat-item span { font-size: 15px; color: rgba(255,255,255,.7); }

/* ===== Process ===== */
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.process-step { text-align: center; padding: 36px 18px; background: var(--white); border-radius: var(--radius-lg); border: 1px solid var(--border); transition: var(--transition); }
.process-step:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.step-num { display: block; font-size: 42px; font-weight: 800; color: var(--primary-lighter); line-height: 1; margin-bottom: 18px; }
.process-step h3 { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.process-step p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

/* ===== Split Block ===== */
.split-block { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.split-img { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.split-img img { width: 100%; height: 440px; object-fit: cover; transition: transform .6s ease; }
.split-img:hover img { transform: scale(1.03); }
.split-body .section-tag { margin-bottom: 18px; }
.split-body h2 { font-size: 38px; line-height: 1.25; font-weight: 800; letter-spacing: -1px; color: var(--primary); margin-bottom: 20px; }
.split-body p { font-size: 16px; color: var(--text-secondary); line-height: 1.8; margin-bottom: 28px; }
.check-list { margin-bottom: 32px; }
.check-list li { display: flex; align-items: center; gap: 12px; font-size: 16px; color: var(--text); padding: 8px 0; }
.check-list li i { color: var(--accent); font-size: 18px; width: 24px; text-align: center; }

/* ===== FAQ ===== */
.faq-section { background: var(--white); border-top: 1px solid var(--border); }
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius-md); margin-bottom: 14px; background: var(--white); overflow: hidden; transition: var(--transition); }
.faq-item:has(summary:hover), .faq-item:hover { border-color: var(--accent); box-shadow: var(--shadow-sm); }
.faq-item summary { padding: 22px 26px; font-size: 16px; font-weight: 600; color: var(--primary); cursor: pointer; list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 16px; user-select: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:after { content: "\f078"; font-family: "Font Awesome 6 Free"; font-weight: 900; font-size: 13px; color: var(--text-muted); transition: transform .3s ease; flex-shrink: 0; }
.faq-item[open] summary:after { transform: rotate(180deg); }
.faq-item p { padding: 0 26px 22px; font-size: 15px; color: var(--text-secondary); line-height: 1.75; }

/* ===== CTA ===== */
.cta-section { position: relative; padding: 100px 0; background-size: cover; background-position: center; }
.cta-section:before { content: ""; position: absolute; inset: 0; background: linear-gradient(120deg, rgba(10,31,68,.94), rgba(10,31,68,.72)); }
.cta-inner { position: relative; max-width: 640px; text-align: center; color: var(--white); margin: 0 auto; }
.cta-inner h2 { font-size: 42px; font-weight: 800; letter-spacing: -1px; margin-bottom: 18px; }
.cta-inner p { font-size: 17px; color: rgba(255,255,255,.85); margin-bottom: 34px; }

/* ===== Footer ===== */
.site-footer { background: var(--dark-bg); color: rgba(255,255,255,.7); padding: 64px 0 28px; }
.footer-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand .brand { color: var(--white); margin-bottom: 16px; display: inline-block; }
.footer-brand p { font-size: 14px; line-height: 1.7; max-width: 320px; color: rgba(255,255,255,.55); }
.footer-links h4 { color: var(--white); font-size: 15px; font-weight: 700; margin-bottom: 18px; }
.footer-links a { display: block; font-size: 14px; color: rgba(255,255,255,.6); padding: 5px 0; transition: var(--transition); }
.footer-links a:hover { color: var(--accent); padding-left: 6px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding-top: 24px; text-align: center; font-size: 13px; color: rgba(255,255,255,.4); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .feature-grid, .category-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .split-block { grid-template-columns: 1fr; gap: 40px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 48px; }
}
@media (max-width: 768px) {
  .site-header { height: auto; }
  .header-inner { height: 64px; flex-wrap: wrap; }
  .main-nav { display: none; position: absolute; top: 64px; left: 0; right: 0; background: var(--white); border-bottom: 1px solid var(--border); flex-direction: column; padding: 16px 24px; gap: 4px; box-shadow: var(--shadow-lg); }
  .main-nav.open { display: flex; }
  .main-nav a { width: 100%; text-align: center; padding: 12px; border-radius: var(--radius-sm); }
  .nav-toggle { display: flex; }
  .header-actions { margin-left: auto; }
  .header-actions .search-box { display: none; }
  .hero { padding: 80px 0 70px; }
  .hero h1 { font-size: 38px; }
  .hero p { font-size: 16px; }
  .hero-stats { gap: 28px; }
  .section { padding: 64px 0; }
  .section-head h2 { font-size: 30px; }
  .post-grid { grid-template-columns: 1fr; }
  .feature-grid, .category-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .process-grid { grid-template-columns: 1fr; }
  .stat-item strong { font-size: 36px; }
  .cta-inner h2 { font-size: 30px; }
}
@media (max-width: 520px) {
  .hero h1 { font-size: 32px; letter-spacing: -1px; }
  .hero-actions .btn { width: 100%; }
  .header-actions .btn { display: none; }
  .section-head h2 { font-size: 26px; }
  .section-head p { font-size: 14px; }
  .footer-top { grid-template-columns: 1fr; gap: 30px; }
  .stats-grid { grid-template-columns: 1fr; }
  .stat-item { padding: 14px 0; }
}

/* roulang page: category1 */
/* ========== 设计变量 ========== */
        :root {
            --primary: #0e2a47;
            --primary-light: #1b3d63;
            --primary-dark: #0a1f35;
            --accent: #e8b64c;
            --accent-hover: #d4a238;
            --accent-soft: #fdf3e0;
            --bg: #f5f7fa;
            --bg-white: #ffffff;
            --bg-deep: #0e2a47;
            --text: #1a2332;
            --text-weak: #64748b;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 10px 30px rgba(14, 42, 71, 0.08);
            --shadow-hover: 0 18px 45px rgba(14, 42, 71, 0.14);
            --transition: all 0.3s ease;
            --container: 1200px;
        }

        /* ========== Reset & Base ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

        a:hover,
        a:focus {
            outline: none;
        }

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

        button,
        input {
            font: inherit;
            border: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

        /* ========== 容器 ========== */
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 60px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.2;
            transition: var(--transition);
            border: 2px solid transparent;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--accent);
            color: var(--primary-dark);
            box-shadow: 0 6px 18px rgba(232, 182, 76, 0.35);
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(232, 182, 76, 0.45);
        }

        .btn-outline {
            background: transparent;
            color: var(--bg-white);
            border-color: rgba(255, 255, 255, 0.6);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--bg-white);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 9px 20px;
            font-size: 14px;
        }

        .btn:focus-visible {
            outline: 3px solid rgba(232, 182, 76, 0.45);
            outline-offset: 2px;
        }

        /* ========== 标签 / 徽章 ========== */
        .tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 14px;
            border-radius: 40px;
            font-size: 13px;
            font-weight: 500;
            background: var(--accent-soft);
            color: #8c6a1f;
            border: 1px solid rgba(232, 182, 76, 0.3);
            line-height: 1.5;
        }

        .badge {
            display: inline-block;
            padding: 3px 12px;
            border-radius: 40px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(255, 255, 255, 0.2);
            color: var(--bg-white);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.35);
        }

        /* ========== 头部导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: saturate(180%) blur(14px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(14, 42, 71, 0.08);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            transition: opacity 0.2s;
        }

        .brand em {
            font-style: normal;
            color: var(--accent);
            margin: 0 1px;
        }

        .brand:hover {
            opacity: 0.85;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            margin: 0 auto;
        }

        .main-nav a {
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-weak);
            border-radius: 40px;
            transition: var(--transition);
            position: relative;
        }

        .main-nav a:hover {
            color: var(--primary);
            background: rgba(14, 42, 71, 0.05);
        }

        .main-nav a.active {
            color: var(--primary);
            font-weight: 600;
            background: rgba(14, 42, 71, 0.07);
        }

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

        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 40px;
            transition: var(--transition);
            min-width: 200px;
        }

        .search-box:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(232, 182, 76, 0.2);
            background: var(--bg-white);
        }

        .search-box i {
            color: var(--text-weak);
            font-size: 14px;
        }

        .search-box input {
            flex: 1;
            font-size: 14px;
            color: var(--text);
            border: none;
            outline: none;
            background: transparent;
            width: 100%;
        }

        .search-box input::placeholder {
            color: #94a3b8;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 42px;
            height: 42px;
            padding: 10px;
            border-radius: 10px;
            background: var(--bg);
            border: 1px solid var(--border);
        }

        .nav-toggle span {
            display: block;
            height: 2px;
            width: 100%;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
        }

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

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

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

        /* ========== 页面 Hero ========== */
        .page-hero {
            position: relative;
            padding: 110px 0 100px;
            overflow: hidden;
            background: var(--bg-deep);
            color: var(--bg-white);
        }

        .page-hero .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.45;
            z-index: 1;
        }

        .page-hero .hero-bg::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 31, 53, 0.85) 0%, rgba(27, 61, 99, 0.45) 100%);
        }

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

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

        .hero-tag {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 40px;
            background: rgba(232, 182, 76, 0.18);
            border: 1px solid rgba(232, 182, 76, 0.3);
            color: var(--accent);
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }

        .hero-content h1 {
            font-size: 48px;
            line-height: 1.15;
            font-weight: 800;
            margin-bottom: 20px;
            letter-spacing: -0.03em;
        }

        .hero-content h1 span {
            color: var(--accent);
        }

        .hero-content p {
            font-size: 18px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 28px;
            max-width: 560px;
        }

        .hero-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-meta .badge {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.2);
        }

        /* ========== 面包屑 ========== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-top: 32px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.75);
            transition: color 0.2s;
        }

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

        .breadcrumb i {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.35);
        }

        .breadcrumb span {
            color: var(--accent);
        }

        /* ========== 通用板块 ========== */
        .section {
            padding: 100px 0;
        }

        .section-alt {
            background: var(--bg-white);
        }

        .section-header {
            margin-bottom: 48px;
            max-width: 620px;
        }

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

        .section-header .eyebrow {
            display: inline-block;
            font-size: 14px;
            font-weight: 600;
            color: #b47e2a;
            background: var(--accent-soft);
            padding: 5px 16px;
            border-radius: 40px;
            margin-bottom: 16px;
            border: 1px solid rgba(232, 182, 76, 0.25);
        }

        .section-header h2 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--primary);
            letter-spacing: -0.02em;
            margin-bottom: 12px;
        }

        .section-header p {
            font-size: 16px;
            color: var(--text-weak);
            line-height: 1.7;
        }

        /* ========== 分类介绍 ========== */
        .intro-section {
            padding: 100px 0;
            background: var(--bg);
        }

        .intro-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 64px;
            align-items: center;
        }

        .intro-text h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 20px;
            letter-spacing: -0.02em;
        }

        .intro-text p {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-weak);
            margin-bottom: 16px;
        }

        .intro-text p strong {
            color: var(--primary);
            font-weight: 600;
        }

        .intro-list {
            margin-top: 24px;
            display: grid;
            gap: 12px;
        }

        .intro-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 15px;
            color: var(--text);
            line-height: 1.5;
        }

        .intro-list li i {
            color: var(--accent);
            margin-top: 4px;
            font-size: 14px;
        }

        .intro-stats {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .stat-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 24px;
            text-align: center;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .stat-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), #f3ce7a);
        }

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

        .stat-card .num {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 4px;
            letter-spacing: -0.02em;
        }

        .stat-card .num sup {
            font-size: 20px;
            color: var(--accent);
            margin-left: 2px;
        }

        .stat-card .label {
            font-size: 14px;
            color: var(--text-weak);
            font-weight: 500;
        }

        /* ========== 资讯卡片 ========== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

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

        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(232, 182, 76, 0.4);
        }

        .news-card .card-cover {
            position: relative;
            height: 200px;
            overflow: hidden;
        }

        .news-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .news-card:hover .card-cover img {
            transform: scale(1.06);
        }

        .news-card .card-cover .tag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(255, 255, 255, 0.92);
            color: var(--primary);
            border: none;
            font-size: 12px;
            font-weight: 600;
            backdrop-filter: blur(6px);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }

        .news-card .card-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
            gap: 10px;
        }

        .news-card .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.45;
            color: var(--primary);
            transition: color 0.2s;
        }

        .news-card .card-body h3 a:hover {
            color: #b47e2a;
        }

        .news-card .card-body p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.7;
            flex: 1;
        }

        .news-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            padding-top: 12px;
            border-top: 1px solid var(--border);
            font-size: 13px;
            color: #94a3b8;
        }

        .news-card .card-meta i {
            font-size: 12px;
        }

        /* ========== 深度专题 ========== */
        .feature-section {
            background: var(--bg-white);
        }

        .feature-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        .feature-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: flex-end;
            background: var(--primary-dark);
            transition: var(--transition);
            border: 1px solid var(--border);
        }

        .feature-card .feature-bg {
            position: absolute;
            inset: 0;
        }

        .feature-card .feature-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.6;
            transition: transform 0.6s ease, opacity 0.4s ease;
        }

        .feature-card:hover .feature-bg img {
            transform: scale(1.04);
            opacity: 0.75;
        }

        .feature-card .feature-bg::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 20%, rgba(10, 31, 53, 0.92) 100%);
        }

        .feature-card .feature-content {
            position: relative;
            z-index: 2;
            padding: 36px;
            color: var(--bg-white);
        }

        .feature-card .feature-content .tag {
            background: rgba(232, 182, 76, 0.25);
            border-color: rgba(232, 182, 76, 0.4);
            color: var(--accent);
            margin-bottom: 14px;
        }

        .feature-card .feature-content h3 {
            font-size: 24px;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 10px;
        }

        .feature-card .feature-content p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 18px;
        }

        .feature-card .feature-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            transition: gap 0.3s;
        }

        .feature-card .feature-link:hover {
            gap: 12px;
        }

        /* ========== 标签云 ========== */
        .tags-section {
            background: var(--bg);
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            max-width: 800px;
        }

        .tag-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 40px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
        }

        .tag-item i {
            color: var(--accent);
            font-size: 13px;
        }

        .tag-item:hover {
            background: var(--primary);
            color: var(--bg-white);
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(14, 42, 71, 0.2);
        }

        .tag-item:hover i {
            color: var(--accent);
        }

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

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: grid;
            gap: 16px;
        }

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

        .faq-item:hover {
            border-color: rgba(232, 182, 76, 0.4);
            box-shadow: var(--shadow);
        }

        .faq-item summary {
            padding: 24px 28px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            transition: var(--transition);
            user-select: none;
        }

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

        .faq-item summary::after {
            content: "\f067";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 14px;
            color: var(--accent);
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(232, 182, 76, 0.12);
            border-radius: 50%;
            transition: transform 0.3s ease;
        }

        .faq-item[open] summary {
            background: var(--accent-soft);
        }

        .faq-item[open] summary::after {
            content: "\f068";
            transform: rotate(180deg);
        }

        .faq-item .faq-answer {
            padding: 0 28px 24px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-weak);
            border-top: 1px solid rgba(232, 182, 76, 0.2);
            margin: 0 28px;
            padding-left: 0;
            padding-right: 0;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--bg-deep);
            position: relative;
            overflow: hidden;
            padding: 100px 0;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: -60%;
            right: -20%;
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(232, 182, 76, 0.18) 0%, transparent 60%);
        }

        .cta-section::after {
            content: "";
            position: absolute;
            bottom: -40%;
            left: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(232, 182, 76, 0.1) 0%, transparent 60%);
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 38px;
            font-weight: 800;
            color: var(--bg-white);
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 520px;
            margin: 0 auto 36px;
            line-height: 1.7;
        }

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

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0a1a2b;
            color: rgba(255, 255, 255, 0.7);
            padding: 72px 0 32px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 56px;
        }

        .footer-brand .brand {
            color: var(--bg-white);
            font-size: 24px;
            margin-bottom: 16px;
            display: inline-flex;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            max-width: 320px;
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-links h4 {
            color: var(--bg-white);
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 18px;
        }

        .footer-links a {
            display: block;
            font-size: 14px;
            padding: 6px 0;
            color: rgba(255, 255, 255, 0.55);
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 28px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .container {
                padding: 0 20px;
            }

            .main-nav {
                gap: 2px;
            }

            .main-nav a {
                padding: 8px 12px;
                font-size: 14px;
            }

            .search-box {
                min-width: 150px;
            }

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

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

            .intro-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

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

        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
            }

            .main-nav {
                display: flex;
                flex-direction: column;
                position: fixed;
                top: 0;
                right: -320px;
                width: 280px;
                height: 100vh;
                background: var(--bg-white);
                box-shadow: -20px 0 60px rgba(0, 0, 0, 0.15);
                padding: 72px 28px 28px;
                gap: 6px;
                transition: right 0.35s ease;
                z-index: 1001;
            }

            .main-nav.open {
                right: 0;
            }

            .main-nav a {
                display: block;
                font-size: 16px;
                padding: 12px 16px;
                border-radius: 12px;
                width: 100%;
            }

            .header-actions {
                display: none;
            }

            .nav-toggle {
                display: flex;
                z-index: 1002;
                position: relative;
            }

            .page-hero {
                padding: 80px 0 70px;
            }

            .hero-content h1 {
                font-size: 32px;
            }

            .hero-content p {
                font-size: 16px;
            }

            .section {
                padding: 70px 0;
            }

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

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

            .intro-stats {
                grid-template-columns: 1fr 1fr;
            }

            .stat-card {
                padding: 20px 16px;
            }

            .stat-card .num {
                font-size: 28px;
            }

            .footer-top {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .cta-section h2 {
                font-size: 30px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .brand {
                font-size: 19px;
            }

            .hero-content h1 {
                font-size: 26px;
            }

            .hero-meta {
                gap: 10px;
            }

            .intro-stats {
                grid-template-columns: 1fr;
            }

            .feature-card {
                min-height: 300px;
            }

            .feature-card .feature-content {
                padding: 24px;
            }

            .feature-card .feature-content h3 {
                font-size: 20px;
            }

            .faq-item summary {
                padding: 18px 20px;
                font-size: 15px;
            }

            .faq-item .faq-answer {
                padding-bottom: 18px;
                font-size: 14px;
            }

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: article */
:root {
    --primary: #0f1f38;
    --primary-light: #16294a;
    --primary-deep: #081526;
    --accent: #f25c05;
    --accent-hover: #d84e04;
    --accent-soft: rgba(242, 92, 5, 0.1);
    --secondary: #0ea5e9;
    --bg: #f4f6fa;
    --bg-dark: #0b1a2e;
    --card: #ffffff;
    --text: #1c2333;
    --text-light: #5d6b82;
    --muted: #8a97a8;
    --border: #e6ebf1;
    --radius: 16px;
    --radius-sm: 10px;
    --radius-lg: 28px;
    --shadow: 0 4px 24px rgba(11, 26, 46, 0.06);
    --shadow-lg: 0 16px 48px rgba(11, 26, 46, 0.13);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --header-h: 76px;
    --section-space: 90px;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input { font-family: inherit; }
i, em { font-style: italic; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-h);
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: var(--transition);
}
.site-header.scrolled { box-shadow: 0 4px 20px rgba(11, 26, 46, 0.06); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); gap: 24px; }

.brand {
    font-size: 1.3rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--primary);
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 2px;
}
.brand em { color: var(--accent); font-style: normal; font-weight: 900; }

.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav a {
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-light);
    white-space: nowrap;
    transition: var(--transition);
    position: relative;
}
.main-nav a:hover { background: var(--accent-soft); color: var(--accent); }
.main-nav a.active { background: var(--primary); color: #fff; }

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

.search-box {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #f1f4f8;
    border: 1px solid transparent;
    border-radius: 50px;
    padding: 8px 18px;
    min-width: 200px;
    transition: var(--transition);
}
.search-box i { color: var(--muted); font-size: 0.85rem; }
.search-box input {
    border: none;
    background: transparent;
    outline: none;
    font-size: 0.88rem;
    color: var(--text);
    width: 100%;
}
.search-box input::placeholder { color: var(--muted); }
.search-box:focus-within { background: #fff; border-color: var(--primary); box-shadow: 0 0 0 4px rgba(15, 31, 56, 0.08); }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.92rem;
    padding: 12px 28px;
    transition: var(--transition);
    white-space: nowrap;
    border: 2px solid transparent;
    line-height: 1.4;
}
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 4px 14px rgba(242, 92, 5, 0.3); }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(242, 92, 5, 0.35); }
.btn-outline { border-color: rgba(255, 255, 255, 0.5); color: #fff; background: transparent; }
.btn-outline:hover { background: rgba(255, 255, 255, 0.12); border-color: #fff; }
.btn-sm { padding: 8px 20px; font-size: 0.85rem; }
.btn-lg { padding: 16px 38px; font-size: 1rem; }
.btn-light { background: #fff; color: var(--primary); }
.btn-light:hover { background: #f0f2f5; transform: translateY(-2px); box-shadow: var(--shadow); }

.nav-toggle { display: none; flex-direction: column; gap: 6px; padding: 10px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--primary); border-radius: 4px; transition: var(--transition); }
.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(6px, -6px); }

/* ---------- Page Hero ---------- */
.page-hero {
    position: relative;
    padding: 180px 0 90px;
    background: linear-gradient(135deg, rgba(8, 21, 38, 0.92), rgba(15, 31, 56, 0.72)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    color: #fff;
}
.page-hero::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 60px; background: linear-gradient(transparent, var(--bg)); pointer-events: none; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: rgba(255, 255, 255, 0.65); margin-bottom: 20px; }
.breadcrumb a { color: rgba(255, 255, 255, 0.65); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { color: rgba(255, 255, 255, 0.4); }

.hero-title {
    font-size: 2.6rem;
    font-weight: 800;
    line-height: 1.25;
    letter-spacing: -0.02em;
    max-width: 720px;
    margin-bottom: 20px;
}
.hero-meta { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--accent);
    color: #fff;
    font-size: 0.8rem;
    font-weight: 700;
    padding: 5px 14px;
    border-radius: 50px;
    letter-spacing: 0.02em;
}
.badge-outline { background: rgba(255, 255, 255, 0.15); border: 1px solid rgba(255, 255, 255, 0.3); color: #fff; }

.meta-item { display: inline-flex; align-items: center; gap: 6px; color: rgba(255, 255, 255, 0.75); font-size: 0.88rem; }
.meta-item i { font-size: 0.8rem; }

/* ---------- Article Section ---------- */
.article-section { padding: 70px 0 100px; }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 48px; align-items: start; }

.article-main { min-width: 0; }

.article-body {
    background: var(--card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: 48px 52px;
    border: 1px solid var(--border);
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
    margin-bottom: 28px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}
.article-meta .badge { margin-right: 4px; }
.article-meta .meta-item { color: var(--text-light); }
.article-meta .meta-item i { color: var(--muted); }

.article-content { font-size: 1.05rem; line-height: 1.85; color: #2a3142; }
.article-content p { margin-bottom: 1.5rem; }
.article-content h2 { font-size: 1.55rem; font-weight: 700; margin: 2.2rem 0 1rem; color: var(--primary); line-height: 1.3; }
.article-content h3 { font-size: 1.25rem; font-weight: 700; margin: 1.8rem 0 0.8rem; color: var(--primary); }
.article-content h4 { font-size: 1.08rem; font-weight: 700; margin: 1.4rem 0 0.5rem; color: var(--primary); }
.article-content ul, .article-content ol { margin: 0 0 1.5rem 1.4rem; }
.article-content li { margin-bottom: 0.5rem; }
.article-content blockquote {
    border-left: 4px solid var(--accent);
    background: var(--accent-soft);
    padding: 18px 24px;
    margin: 1.5rem 0;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: var(--text-light);
    font-style: italic;
}
.article-content img { border-radius: var(--radius); margin: 1.5rem 0; box-shadow: var(--shadow); }
.article-content a { color: var(--accent); font-weight: 600; }
.article-content a:hover { text-decoration: underline; }
.article-content code { background: #f1f4f8; padding: 3px 8px; border-radius: 6px; font-size: 0.9em; }

.article-tags {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 36px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
}
.article-tags .tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: #f1f4f8;
    border-radius: 50px;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-light);
    transition: var(--transition);
}
.article-tags .tag:hover { background: var(--accent-soft); color: var(--accent); }

/* Not Found */
.not-found { text-align: center; padding: 70px 40px; background: var(--card); border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.not-found i { font-size: 3.5rem; color: var(--muted); margin-bottom: 20px; }
.not-found h2 { font-size: 1.6rem; color: var(--primary); margin-bottom: 12px; }
.not-found p { color: var(--text-light); margin-bottom: 28px; }

/* ---------- Sidebar ---------- */
.article-sidebar { display: flex; flex-direction: column; gap: 28px; }

.sidebar-card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 30px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}
.sidebar-card .widget-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.sidebar-card .widget-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
    margin-left: 4px;
}

.about-card { background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; border: none; position: relative; overflow: hidden; }
.about-card::after { content: ''; position: absolute; top: -40px; right: -40px; width: 100px; height: 100px; background: rgba(255, 255, 255, 0.06); border-radius: 50%; }
.about-card .widget-title { color: #fff; }
.about-card p { color: rgba(255, 255, 255, 0.8); font-size: 0.9rem; line-height: 1.7; }
.about-card .about-icon { font-size: 2rem; margin-bottom: 12px; color: var(--accent); }

.latest-list { display: flex; flex-direction: column; gap: 14px; }
.latest-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 10px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}
.latest-item:hover { background: #f8fafc; transform: translateX(4px); }
.latest-thumb {
    width: 56px; height: 56px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    flex-shrink: 0;
    overflow: hidden;
    background: #f1f4f8;
}
.latest-thumb img { width: 100%; height: 100%; object-fit: cover; }
.latest-info { flex: 1; min-width: 0; }
.latest-info strong { display: block; font-size: 0.88rem; font-weight: 600; color: var(--text); line-height: 1.4; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.latest-info small { display: block; font-size: 0.78rem; color: var(--muted); margin-top: 3px; }
.latest-item:hover .latest-info strong { color: var(--accent); }

.category-list { display: flex; flex-direction: column; gap: 6px; }
.category-list a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    color: var(--text-light);
    transition: var(--transition);
}
.category-list a:hover { background: var(--accent-soft); color: var(--accent); }
.category-list a .count { font-size: 0.78rem; background: #f1f4f8; padding: 2px 10px; border-radius: 50px; color: var(--muted); }
.category-list a:hover .count { background: #fff; color: var(--accent); }

/* ---------- Related Section ---------- */
.related-section { padding: 0 0 100px; }
.related-section .section-head { text-align: center; margin-bottom: 48px; }
.related-section .section-head h2 { font-size: 2rem; font-weight: 800; color: var(--primary); letter-spacing: -0.02em; }
.related-section .section-head p { color: var(--text-light); margin-top: 10px; font-size: 1rem; max-width: 520px; margin-left: auto; margin-right: auto; }

.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }

.news-card {
    background: var(--card);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.news-card .card-img { position: relative; height: 190px; overflow: hidden; }
.news-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.news-card:hover .card-img img { transform: scale(1.06); }
.news-card .card-img::after { content: ''; position: absolute; inset: 0; background: linear-gradient(transparent, rgba(11, 26, 46, 0.15)); }
.news-card .card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.news-card .card-body .badge { align-self: flex-start; margin-bottom: 12px; }
.news-card .card-body h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 10px; line-height: 1.4; }
.news-card .card-body h3 a { color: var(--text); }
.news-card .card-body h3 a:hover { color: var(--accent); }
.news-card .card-body p { font-size: 0.88rem; color: var(--text-light); line-height: 1.6; flex: 1; margin-bottom: 16px; }
.news-card .card-foot { display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--border); padding-top: 14px; }
.news-card .card-foot .meta-item { color: var(--muted); font-size: 0.8rem; }
.news-card .card-foot .read-link { font-size: 0.85rem; color: var(--accent); font-weight: 600; display: inline-flex; align-items: center; gap: 4px; }
.news-card .card-foot .read-link:hover { gap: 8px; }

/* ---------- FAQ ---------- */
.faq-section { padding: 90px 0; background: var(--bg-dark); position: relative; overflow: hidden; }
.faq-section::before { content: ''; position: absolute; top: -80px; right: -80px; width: 300px; height: 300px; border-radius: 50%; background: rgba(242, 92, 5, 0.08); }
.faq-section::after { content: ''; position: absolute; bottom: -60px; left: -60px; width: 200px; height: 200px; border-radius: 50%; background: rgba(14, 165, 233, 0.08); }
.faq-section .container { position: relative; z-index: 1; }
.faq-section .section-head { text-align: center; margin-bottom: 48px; }
.faq-section .section-head h2 { font-size: 2rem; font-weight: 800; color: #fff; }
.faq-section .section-head p { color: rgba(255, 255, 255, 0.6); margin-top: 10px; }

.faq-list { display: flex; flex-direction: column; gap: 14px; max-width: 820px; margin: 0 auto; }

.faq-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);
    padding: 0;
    transition: var(--transition);
}
.faq-item:hover { background: rgba(255, 255, 255, 0.08); }
.faq-item details { padding: 20px 28px; }
.faq-item summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 1rem;
    color: #fff;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .fa { color: var(--accent); font-size: 1rem; transition: var(--transition); }
.faq-item[open] summary .fa { transform: rotate(45deg); }
.faq-item .faq-answer { color: rgba(255, 255, 255, 0.7); font-size: 0.93rem; line-height: 1.7; padding-top: 12px; border-top: 1px solid rgba(255, 255, 255, 0.1); margin-top: 14px; }

/* ---------- CTA ---------- */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--accent), #e6460c);
    position: relative;
    overflow: hidden;
    text-align: center;
}
.cta-section::before {
    content: '';
    position: absolute;
    top: -60px;
    left: 50%;
    transform: translateX(-50%);
    width: 400px;
    height: 200px;
    background: radial-gradient(ellipse, rgba(255, 255, 255, 0.14), transparent 70%);
}
.cta-section .container { position: relative; z-index: 1; }
.cta-section h2 { font-size: 2.4rem; font-weight: 800; color: #fff; letter-spacing: -0.02em; margin-bottom: 16px; }
.cta-section p { font-size: 1.1rem; color: rgba(255, 255, 255, 0.9); max-width: 600px; margin: 0 auto 36px; line-height: 1.7; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* ---------- Footer ---------- */
.site-footer { background: var(--bg-dark); color: rgba(255, 255, 255, 0.7); padding: 70px 0 0; }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; padding-bottom: 48px; border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
.footer-brand .brand { color: #fff; font-size: 1.5rem; }
.footer-brand p { font-size: 0.92rem; color: rgba(255, 255, 255, 0.55); max-width: 340px; margin-top: 16px; line-height: 1.7; }
.footer-links h4 { color: #fff; font-size: 1rem; font-weight: 700; margin-bottom: 20px; }
.footer-links a { display: block; color: rgba(255, 255, 255, 0.55); font-size: 0.9rem; padding: 5px 0; transition: var(--transition); }
.footer-links a:hover { color: var(--accent); transform: translateX(3px); }
.footer-bottom { padding: 24px 0; text-align: center; border-top: 1px solid rgba(255, 255, 255, 0.06); }
.footer-bottom p { font-size: 0.82rem; color: rgba(255, 255, 255, 0.4); }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
    .article-layout { grid-template-columns: 1fr; }
    .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
    .about-card { grid-column: 1 / -1; }
    .related-grid { grid-template-columns: repeat(2, 1fr); }
    .main-nav { gap: 2px; }
    .main-nav a { padding: 8px 12px; font-size: 0.85rem; }
    .search-box { min-width: 140px; }
}

@media (max-width: 768px) {
    :root { --header-h: 64px; --section-space: 60px; }
    .nav-toggle { display: flex; }
    .main-nav {
        position: fixed;
        top: var(--header-h);
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 20px 40px rgba(11, 26, 46, 0.12);
        transform: translateY(-120%);
        opacity: 0;
        pointer-events: none;
        transition: var(--transition);
        border-bottom: 1px solid var(--border);
        z-index: 999;
        gap: 4px;
    }
    .main-nav.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
    .main-nav a { width: 100%; text-align: center; padding: 14px; }
    .header-actions { gap: 10px; }
    .search-box { display: none; }
    .hero-title { font-size: 1.9rem; }
    .page-hero { padding: 140px 0 70px; }
    .article-body { padding: 32px 24px; }
    .article-content { font-size: 1rem; }
    .article-sidebar { grid-template-columns: 1fr; }
    .related-grid { grid-template-columns: 1fr; }
    .footer-top { grid-template-columns: 1fr; gap: 36px; }
    .cta-section h2 { font-size: 1.8rem; }
    .cta-section p { font-size: 1rem; }
}

@media (max-width: 520px) {
    .container { padding: 0 16px; }
    .header-actions .btn-sm { display: none; }
    .hero-title { font-size: 1.6rem; }
    .hero-meta { gap: 10px; }
    .article-body { padding: 24px 18px; border-radius: 18px; }
    .article-content { font-size: 0.96rem; }
    .related-grid { gap: 20px; }
    .faq-item details { padding: 16px 20px; }
    .btn-lg { padding: 14px 28px; font-size: 0.9rem; }
    .footer-top { padding-bottom: 36px; }
    .cta-section { padding: 70px 0; }
}

@media (max-width: 360px) {
    .search-box { display: none; }
    .brand { font-size: 1.1rem; }
}

/* roulang page: category3 */
/* ========== 设计变量 ========== */
:root {
  --primary: #1b2a4e;
  --primary-light: #2b4070;
  --primary-dark: #101a33;
  --accent: #d4a24e;
  --accent-light: #e8c57a;
  --accent-dark: #b3873a;
  --bg: #f5f6fa;
  --bg-deep: #eef0f6;
  --white: #ffffff;
  --text: #1a2233;
  --text-weak: #6b7280;
  --text-light: #9ca3af;
  --border: #e5e7ed;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow: 0 4px 24px rgba(27, 42, 78, 0.07);
  --shadow-lg: 0 12px 40px rgba(27, 42, 78, 0.12);
  --shadow-accent: 0 6px 30px rgba(212, 162, 78, 0.25);
  --ff: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --ff-serif: Georgia, "Times New Roman", "SimSun", serif;
  --space: 80px;
  --space-mobile: 56px;
  --transition: all 0.3s ease;
}

/* ========== Reset ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--ff);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input { font-family: inherit; }
h1, h2, h3, h4, h5 { line-height: 1.3; font-weight: 700; color: var(--primary); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 50px;
  transition: var(--transition);
  line-height: 1.4;
}
.btn-primary {
  background: var(--accent);
  color: var(--primary-dark);
  box-shadow: var(--shadow-accent);
}
.btn-primary:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 36px rgba(212, 162, 78, 0.35);
}
.btn-outline {
  background: transparent;
  border: 2px solid rgba(255, 255, 255, 0.6);
  color: #fff;
}
.btn-outline:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-2px);
}
.btn-light {
  background: var(--white);
  color: var(--primary);
  box-shadow: var(--shadow);
}
.btn-light:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
.btn-sm { padding: 8px 20px; font-size: 14px; }

/* ========== 标签 ========== */
.badge {
  display: inline-block;
  padding: 5px 16px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 50px;
  letter-spacing: 0.05em;
}
.badge-accent { background: rgba(212, 162, 78, 0.15); color: var(--accent-dark); }
.badge-primary { background: rgba(27, 42, 78, 0.08); color: var(--primary); }
.badge-light { background: rgba(255, 255, 255, 0.18); color: #fff; backdrop-filter: blur(4px); }

/* ========== Header导航 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(229, 231, 237, 0.7);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 20px;
}
.brand {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--primary);
  white-space: nowrap;
  display: flex;
  align-items: center;
}
.brand em {
  font-style: normal;
  color: var(--accent);
  margin: 0 2px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 30px;
}
.main-nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-weak);
  position: relative;
  padding: 6px 0;
  white-space: nowrap;
}
.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: var(--transition);
}
.main-nav a:hover { color: var(--primary); }
.main-nav a:hover::after { width: 100%; }
.main-nav a.active { color: var(--primary); font-weight: 600; }
.main-nav a.active::after { width: 100%; }
.header-actions { display: flex; align-items: center; gap: 16px; }
.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-deep);
  border-radius: 50px;
  padding: 8px 16px;
  width: 220px;
  border: 1px solid transparent;
  transition: var(--transition);
}
.search-box:focus-within {
  border-color: var(--accent);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(212, 162, 78, 0.15);
}
.search-box i { color: var(--text-light); font-size: 14px; }
.search-box input {
  border: none;
  outline: none;
  background: transparent;
  font-size: 14px;
  width: 100%;
  color: var(--text);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: var(--bg-deep);
}
.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ========== Hero首屏 ========== */
.hero {
  position: relative;
  padding: 100px 0 80px;
  background: linear-gradient(135deg, rgba(16, 26, 51, 0.92) 0%, rgba(27, 42, 78, 0.82) 60%, rgba(43, 64, 112, 0.72) 100%),
              url('/assets/images/backpic/back-3.png') center / cover no-repeat;
  color: #fff;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 80% 20%, rgba(212, 162, 78, 0.25) 0%, transparent 60%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 2; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: center;
}
.hero-tags { display: flex; gap: 10px; margin-bottom: 24px; flex-wrap: wrap; }
.hero-title {
  font-size: 48px;
  line-height: 1.2;
  color: #fff;
  margin-bottom: 20px;
  font-family: var(--ff-serif);
  letter-spacing: 0.02em;
}
.hero-title span { color: var(--accent-light); }
.hero-subtitle {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.8);
  max-width: 520px;
  margin-bottom: 36px;
  line-height: 1.8;
}
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-meta { display: flex; gap: 24px; margin-top: 36px; flex-wrap: wrap; }
.hero-meta-item { display: flex; align-items: center; gap: 8px; font-size: 14px; color: rgba(255, 255, 255, 0.75); }
.hero-meta-item i { color: var(--accent-light); }
.hero-score-card {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  text-align: center;
}
.score-number {
  font-size: 64px;
  font-weight: 800;
  color: var(--accent-light);
  line-height: 1;
  font-family: var(--ff-serif);
}
.score-label { color: rgba(255, 255, 255, 0.8); margin-top: 8px; font-size: 15px; }
.score-bars { margin-top: 30px; display: grid; gap: 14px; text-align: left; }
.score-bar-item { display: flex; align-items: center; gap: 10px; font-size: 13px; color: rgba(255, 255, 255, 0.85); }
.score-bar-track { flex: 1; height: 6px; background: rgba(255, 255, 255, 0.15); border-radius: 3px; overflow: hidden; }
.score-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  border-radius: 3px;
}

/* ========== 专业板块 ========== */
.section { padding: var(--space) 0; }
.section-deep { background: var(--bg-deep); }
.section-white { background: var(--white); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.section-tag { margin-bottom: 16px; }
.section-title { font-size: 36px; margin-bottom: 14px; font-family: var(--ff-serif); }
.section-subtitle { color: var(--text-weak); font-size: 16px; line-height: 1.8; }

/* ========== 体验概览 ========== */
.overview-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.overview-copy h3 { font-size: 28px; margin-bottom: 20px; }
.overview-copy p { color: var(--text-weak); margin-bottom: 16px; font-size: 15.5px; }
.overview-points { margin-top: 24px; display: grid; gap: 14px; }
.overview-points li { display: flex; gap: 12px; align-items: flex-start; }
.overview-points i { color: var(--accent); margin-top: 4px; font-size: 16px; }
.overview-points span { font-size: 15px; color: var(--text); }
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.stat-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.stat-number { font-size: 36px; font-weight: 800; color: var(--primary); font-family: var(--ff-serif); }
.stat-unit { font-size: 16px; color: var(--accent); font-weight: 600; }
.stat-label { font-size: 14px; color: var(--text-weak); margin-top: 6px; }

/* ========== 评分卡片 ========== */
.dims-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.dim-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.dim-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  opacity: 0;
  transition: var(--transition);
}
.dim-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.dim-card:hover::before { opacity: 1; }
.dim-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  background: rgba(212, 162, 78, 0.12);
  color: var(--accent-dark);
  margin: 0 auto 18px;
}
.dim-card h3 { font-size: 18px; margin-bottom: 8px; }
.dim-card p { font-size: 14px; color: var(--text-weak); margin-bottom: 16px; min-height: 60px; }
.dim-score { display: flex; align-items: center; gap: 8px; justify-content: center; }
.dim-score .num { font-size: 22px; font-weight: 800; color: var(--primary); }
.dim-score .bar { width: 80px; height: 6px; background: var(--bg-deep); border-radius: 3px; overflow: hidden; }
.dim-score .bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-light)); border-radius: 3px; }

/* ========== 流程 ========== */
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: step; }
.step-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 24px 28px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.step-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.step-num {
  font-size: 48px;
  font-weight: 800;
  color: transparent;
  -webkit-text-stroke: 2px var(--accent);
  font-family: var(--ff-serif);
  line-height: 1;
  margin-bottom: 12px;
}
.step-card h3 { font-size: 18px; margin-bottom: 8px; }
.step-card p { font-size: 14px; color: var(--text-weak); }
.step-line {
  position: absolute;
  top: 36px;
  right: -24px;
  width: 24px;
  height: 2px;
  background: var(--accent-light);
  opacity: 0.4;
}
.step-card:last-child .step-line { display: none; }

/* ========== 特色图文交替 ========== */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  padding: 60px 0;
}
.feature-block.alt .feature-media { order: 2; }
.feature-copy h3 { font-size: 26px; margin-bottom: 14px; }
.feature-copy p { color: var(--text-weak); margin-bottom: 16px; font-size: 15.5px; }
.feature-copy ul { display: grid; gap: 10px; }
.feature-copy li { display: flex; gap: 10px; font-size: 15px; }
.feature-copy li i { color: var(--accent); margin-top: 4px; }
.feature-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}
.feature-media img { width: 100%; height: 320px; object-fit: cover; transition: var(--transition); }
.feature-media:hover img { transform: scale(1.03); }
.feature-quote {
  margin-top: 16px;
  padding: 14px 20px;
  background: var(--bg-deep);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 14px;
  color: var(--text-weak);
  font-style: italic;
}

/* ========== 用户评价 ========== */
.testi-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testi-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.testi-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.testi-stars { color: var(--accent); font-size: 16px; margin-bottom: 16px; letter-spacing: 2px; }
.testi-card blockquote {
  font-size: 15px;
  color: var(--text);
  line-height: 1.8;
  flex: 1;
  margin-bottom: 20px;
  padding: 0;
  border: none;
}
.testi-author { display: flex; align-items: center; gap: 12px; border-top: 1px solid var(--border); padding-top: 16px; }
.testi-avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; color: var(--accent-light); font-weight: 700;
}
.testi-name { font-size: 14px; font-weight: 600; color: var(--primary); }
.testi-role { font-size: 12px; color: var(--text-light); }

/* ========== FAQ ========== */
.faq-list { max-width: 820px; margin: 0 auto; display: grid; gap: 14px; }
.faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--accent-light); }
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
}
.faq-question i { color: var(--accent); transition: var(--transition); font-size: 18px; }
.faq-item.open .faq-question i { transform: rotate(180deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, margin 0.4s ease;
  font-size: 15px;
  color: var(--text-weak);
  line-height: 1.8;
}
.faq-item.open .faq-answer { max-height: 300px; margin-top: 14px; }

/* ========== CTA ========== */
.cta-section {
  position: relative;
  padding: 100px 0;
  background: linear-gradient(135deg, rgba(16, 26, 51, 0.95) 0%, rgba(27, 42, 78, 0.9) 100%),
              url('/assets/images/backpic/back-2.png') center / cover no-repeat;
  text-align: center;
  color: #fff;
}
.cta-section h2 { font-size: 38px; color: #fff; margin-bottom: 16px; font-family: var(--ff-serif); }
.cta-section p { font-size: 16px; color: rgba(255, 255, 255, 0.75); max-width: 560px; margin: 0 auto 32px; }
.cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ========== Footer页脚 ========== */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.75);
  padding: 64px 0 0;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 56px;
  padding-bottom: 40px;
}
.footer-brand .brand { font-size: 24px; color: #fff; margin-bottom: 16px; }
.footer-brand .brand em { color: var(--accent); }
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 320px; }
.footer-links h4 { color: #fff; font-size: 15px; margin-bottom: 16px; font-weight: 600; }
.footer-links a {
  display: block;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  padding: 6px 0;
}
.footer-links a:hover { color: var(--accent-light); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}
.footer-bottom a { color: rgba(255, 255, 255, 0.6); }
.footer-bottom a:hover { color: var(--accent-light); }

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .header-actions .search-box { width: 160px; }
  .main-nav { gap: 20px; }
  .hero-title { font-size: 40px; }
  .dims-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .step-line { display: none; }
  .testi-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 24px 32px;
    gap: 20px;
    box-shadow: 0 18px 40px rgba(27, 42, 78, 0.12);
    transform: translateY(-120%);
    opacity: 0;
    transition: var(--transition);
    z-index: 999;
    border-bottom: 1px solid var(--border);
  }
  .main-nav.open { transform: translateY(0); opacity: 1; }
  .header-actions .search-box { display: none; }
  .hero { padding: 72px 0 56px; }
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .hero-title { font-size: 32px; }
  .overview-grid { grid-template-columns: 1fr; gap: 40px; }
  .feature-block { grid-template-columns: 1fr; gap: 28px; }
  .feature-block.alt .feature-media { order: 0; }
  .section { padding: var(--space-mobile) 0; }
  .section-title { font-size: 30px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .header-actions .btn-sm { display: none; }
  .hero-title { font-size: 28px; }
  .hero-meta { gap: 14px; }
  .dims-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .testi-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .stat-number { font-size: 28px; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .cta-section h2 { font-size: 28px; }
  .cta-btns .btn { width: 100%; justify-content: center; }
}

/* ========== 焦点 / 可访问性 ========== */
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 3px solid rgba(212, 162, 78, 0.5);
  outline-offset: 2px;
}
::selection { background: rgba(212, 162, 78, 0.3); }

/* roulang page: category2 */
:root{
  --primary:#0f1f3d;
  --primary-light:#1e4d7b;
  --accent:#d4a853;
  --accent-light:#e8c97a;
  --accent-dark:#b88a3a;
  --bg:#f6f8fb;
  --bg-alt:#eef1f6;
  --dark-bg:#0a1628;
  --text:#1e293b;
  --text-light:#64748b;
  --white:#ffffff;
  --border:#e2e8f0;
  --radius-sm:8px;
  --radius:16px;
  --radius-lg:24px;
  --shadow:0 2px 16px rgba(15,31,61,.06);
  --shadow-lg:0 12px 40px rgba(15,31,61,.12);
  --font:'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  color:var(--text);
  background:var(--bg);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit;transition:color .2s ease}
button{font-family:inherit;border:none;background:none;cursor:pointer}
input{font-family:inherit}
ul,ol{list-style:none}
.container{max-width:1240px;margin:0 auto;padding:0 24px}
/* Header */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(226,232,240,.7);
}
.header-inner{
  display:flex;align-items:center;
  justify-content:space-between;
  height:72px;
  gap:24px;
}
.brand{
  font-size:24px;font-weight:800;color:var(--primary);
  letter-spacing:-.5px;
  white-space:nowrap;
  display:flex;align-items:center;
}
.brand em{
  font-style:normal;color:var(--accent);
}
.main-nav{
  display:flex;align-items:center;
  gap:6px;
}
.main-nav a{
  padding:10px 16px;
  font-size:15px;font-weight:500;
  color:var(--text-light);
  border-radius:10px;
  transition:all .25s ease;
  position:relative;
}
.main-nav a:hover{
  color:var(--primary);
  background:rgba(15,31,61,.05);
}
.main-nav a.active{
  color:var(--primary);
  font-weight:600;
  background:rgba(212,168,83,.12);
}
.main-nav a.active::after{
  content:'';
  position:absolute;
  bottom:4px;left:50%;
  transform:translateX(-50%);
  width:20px;height:3px;
  border-radius:2px;
  background:var(--accent);
}
.header-actions{
  display:flex;align-items:center;
  gap:12px;
}
.search-box{
  display:flex;align-items:center;
  gap:8px;
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:24px;
  padding:8px 16px;
  width:220px;
  transition:all .25s ease;
}
.search-box:focus-within{
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(212,168,83,.15);
  background:#fff;
}
.search-box i{color:var(--text-light);font-size:14px}
.search-box input{
  border:none;outline:none;background:none;
  font-size:14px;color:var(--text);
  width:100%;
}
.search-box input::placeholder{color:#94a3b8}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  gap:8px;
  padding:10px 22px;
  border-radius:10px;
  font-size:15px;font-weight:600;
  transition:all .25s ease;
  cursor:pointer;
  border:1px solid transparent;
}
.btn-primary{
  background:var(--primary);
  color:#fff;
  box-shadow:0 2px 10px rgba(15,31,61,.2);
}
.btn-primary:hover{
  background:var(--primary-light);
  transform:translateY(-2px);
  box-shadow:0 6px 20px rgba(15,31,61,.25);
}
.btn-outline{
  background:transparent;
  color:var(--primary);
  border-color:rgba(255,255,255,.6);
}
.btn-outline:hover{
  background:rgba(255,255,255,.12);
  border-color:#fff;
}
.btn-gold{
  background:var(--accent);
  color:var(--primary);
}
.btn-gold:hover{
  background:var(--accent-light);
  transform:translateY(-2px);
  box-shadow:0 6px 20px rgba(212,168,83,.35);
}
.btn-sm{padding:8px 18px;font-size:14px}
.btn-lg{padding:14px 32px;font-size:16px;border-radius:12px}
.nav-toggle{
  display:none;
  flex-direction:column;
  gap:5px;
  padding:8px;
}
.nav-toggle span{
  width:22px;height:2px;
  background:var(--primary);
  border-radius:2px;
  transition:all .3s ease;
}
/* Hero */
.hero{
  position:relative;
  min-height:520px;
  display:flex;
  align-items:center;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  isolation:isolate;
}
.hero::before{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,rgba(10,22,40,.9) 0%,rgba(10,22,40,.65) 50%,rgba(10,22,40,.2) 100%);
  z-index:-1;
}
.hero-content{
  padding:80px 0;
  max-width:760px;
  color:#fff;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(212,168,83,.18);
  border:1px solid rgba(212,168,83,.4);
  color:var(--accent-light);
  font-size:13px;
  font-weight:600;
  padding:6px 16px;
  border-radius:30px;
  letter-spacing:.5px;
  margin-bottom:20px;
}
.hero h1{
  font-size:52px;
  font-weight:800;
  line-height:1.15;
  letter-spacing:-1px;
  margin-bottom:18px;
}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero p{
  font-size:18px;
  line-height:1.8;
  color:rgba(255,255,255,.85);
  margin-bottom:32px;
}
.hero-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
}
.hero-meta{
  display:flex;
  gap:24px;
  margin-top:40px;
  padding-top:24px;
  border-top:1px solid rgba(255,255,255,.18);
  flex-wrap:wrap;
}
.hero-meta span{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:rgba(255,255,255,.7);
}
.hero-meta i{color:var(--accent)}
/* Section */
.section{
  padding:90px 0;
}
.section-head{
  text-align:center;
  max-width:720px;
  margin:0 auto 56px;
}
.section-tag{
  display:inline-block;
  background:rgba(212,168,83,.12);
  color:var(--accent-dark);
  font-size:13px;
  font-weight:600;
  letter-spacing:1.5px;
  padding:6px 18px;
  border-radius:30px;
  margin-bottom:16px;
  text-transform:uppercase;
}
.section-head h2{
  font-size:36px;
  font-weight:800;
  color:var(--primary);
  line-height:1.25;
  letter-spacing:-.5px;
  margin-bottom:14px;
}
.section-head p{
  font-size:17px;
  color:var(--text-light);
  line-height:1.7;
}
/* Intro */
.intro{
  background:var(--white);
}
.intro-grid{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:60px;
  align-items:center;
}
.intro-quote{
  position:relative;
  padding:32px 36px;
  background:var(--bg);
  border-left:4px solid var(--accent);
  border-radius:0 var(--radius) var(--radius) 0;
  margin-bottom:24px;
}
.intro-quote i{
  position:absolute;
  top:24px;right:28px;
  font-size:28px;
  color:rgba(212,168,83,.4);
}
.intro-quote p{
  font-size:17px;
  color:var(--text);
  font-style:italic;
  line-height:1.8;
}
.intro-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:20px;
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 14px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:20px;
  font-size:13px;
  color:var(--text-light);
  transition:all .25s ease;
}
.tag:hover{
  border-color:var(--accent);
  color:var(--accent-dark);
  background:rgba(212,168,83,.06);
}
.tag i{color:var(--accent);font-size:12px}
.intro-image{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-lg);
}
.intro-image img{
  width:100%;height:420px;object-fit:cover;
  transition:transform .6s ease;
}
.intro-image:hover img{transform:scale(1.03)}
.intro-image .img-caption{
  position:absolute;
  bottom:0;left:0;right:0;
  padding:28px 24px 20px;
  background:linear-gradient(transparent,rgba(10,22,40,.75));
  color:#fff;
  font-size:14px;
  font-weight:500;
}
/* Play types */
.play-types{
  background:var(--bg);
}
.types-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:26px;
}
.type-card{
  background:#fff;
  border-radius:var(--radius);
  padding:32px 28px;
  border:1px solid var(--border);
  transition:all .35s ease;
  position:relative;
  overflow:hidden;
}
.type-card::before{
  content:'';
  position:absolute;
  top:0;left:0;right:0;
  height:4px;
  background:linear-gradient(90deg,var(--accent),var(--accent-light));
  opacity:0;
  transition:opacity .3s ease;
}
.type-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
  border-color:transparent;
}
.type-card:hover::before{opacity:1}
.type-icon{
  width:56px;height:56px;
  background:rgba(212,168,83,.12);
  border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  font-size:24px;
  color:var(--accent-dark);
  margin-bottom:20px;
  transition:all .3s ease;
}
.type-card:hover .type-icon{
  background:var(--accent);
  color:#fff;
  transform:scale(1.05) rotate(-4deg);
}
.type-card h3{
  font-size:20px;
  font-weight:700;
  color:var(--primary);
  margin-bottom:10px;
}
.type-card p{
  font-size:14px;
  color:var(--text-light);
  line-height:1.7;
  margin-bottom:16px;
}
.type-rating{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-light);
}
.type-rating .stars{
  color:var(--accent);
  letter-spacing:2px;
  font-size:14px;
}
.type-rating .level{
  background:var(--bg);
  padding:2px 10px;
  border-radius:12px;
  font-size:12px;
  font-weight:600;
  color:var(--text-light);
}
/* Articles */
.articles{
  background:var(--white);
}
.article-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:32px;
}
.article-card{
  display:flex;
  flex-direction:column;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--border);
  transition:all .35s ease;
  background:#fff;
}
.article-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
}
.article-cover{
  position:relative;
  height:230px;
  overflow:hidden;
}
.article-cover img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.article-card:hover .article-cover img{transform:scale(1.05)}
.article-cover .badge-week{
  position:absolute;
  top:16px;left:16px;
  background:var(--accent);
  color:var(--primary);
  font-size:12px;
  font-weight:700;
  padding:4px 14px;
  border-radius:20px;
  letter-spacing:.5px;
}
.article-body{
  padding:26px 28px 30px;
  flex:1;
  display:flex;
  flex-direction:column;
}
.article-meta{
  display:flex;
  align-items:center;
  gap:14px;
  font-size:13px;
  color:var(--text-light);
  margin-bottom:12px;
}
.article-meta .dot{
  width:4px;height:4px;
  border-radius:50%;
  background:var(--accent);
}
.article-body h3{
  font-size:21px;
  font-weight:700;
  color:var(--primary);
  line-height:1.4;
  margin-bottom:10px;
  transition:color .25s ease;
}
.article-card:hover .article-body h3{
  color:var(--accent-dark);
}
.article-body .excerpt{
  font-size:15px;
  color:var(--text-light);
  line-height:1.7;
  margin-bottom:16px;
  flex:1;
}
.article-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-top:16px;
  border-top:1px solid var(--border);
}
.article-bottom .author{
  font-size:13px;
  color:var(--text-light);
  display:flex;
  align-items:center;
  gap:8px;
}
.article-bottom .author i{color:var(--accent)}
.article-link{
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:6px;
  transition:gap .25s ease;
}
.article-link:hover{
  gap:10px;
  color:var(--accent-dark);
}
/* Method */
.method{
  background:var(--dark-bg);
  position:relative;
  overflow:hidden;
}
.method::before{
  content:'';
  position:absolute;
  top:-100px;right:-100px;
  width:400px;height:400px;
  border-radius:50%;
  background:rgba(212,168,83,.06);
}
.method .section-head h2{color:#fff}
.method .section-head p{color:rgba(255,255,255,.6)}
.method .section-tag{background:rgba(212,168,83,.15);color:var(--accent-light)}
.steps-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  position:relative;
  z-index:2;
}
.step-item{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--radius);
  padding:32px 24px;
  transition:all .35s ease;
  text-align:center;
}
.step-item:hover{
  background:rgba(255,255,255,.08);
  border-color:rgba(212,168,83,.3);
  transform:translateY(-4px);
}
.step-num{
  font-size:40px;
  font-weight:800;
  color:rgba(212,168,83,.3);
  line-height:1;
  margin-bottom:14px;
  font-family:Georgia,serif;
}
.step-item h3{
  color:#fff;
  font-size:18px;
  font-weight:600;
  margin-bottom:8px;
}
.step-item p{
  color:rgba(255,255,255,.55);
  font-size:14px;
  line-height:1.6;
}
.step-item i{
  display:block;
  font-size:28px;
  color:var(--accent);
  margin-bottom:16px;
}
/* Stats */
.stats{
  background:var(--bg);
  border-top:1px solid var(--border);
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.stat-item{
  text-align:center;
  padding:36px 20px;
  background:#fff;
  border-radius:var(--radius);
  border:1px solid var(--border);
  transition:all .3s ease;
}
.stat-item:hover{
  box-shadow:var(--shadow);
  transform:translateY(-3px);
}
.stat-num{
  font-size:44px;
  font-weight:800;
  color:var(--primary);
  line-height:1.2;
  font-family:Georgia,serif;
}
.stat-num em{
  font-style:normal;
  color:var(--accent);
  font-size:28px;
  font-weight:700;
}
.stat-label{
  font-size:14px;
  color:var(--text-light);
  margin-top:8px;
}
/* FAQ */
.faq{
  background:var(--white);
}
.faq-list{
  max-width:820px;
  margin:0 auto;
}
.faq-item{
  border:1px solid var(--border);
  border-radius:var(--radius);
  margin-bottom:16px;
  overflow:hidden;
  transition:border-color .3s ease;
}
.faq-item:hover{
  border-color:var(--accent);
}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 28px;
  cursor:pointer;
  font-size:17px;
  font-weight:600;
  color:var(--primary);
  list-style:none;
  transition:padding .3s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{
  color:var(--accent);
  transition:transform .3s ease;
  flex-shrink:0;
}
.faq-item[open] summary i{
  transform:rotate(45deg);
}
.faq-item .faq-answer{
  padding:0 28px 24px;
  color:var(--text-light);
  font-size:15px;
  line-height:1.8;
}
.faq-item .faq-answer p{margin-bottom:10px}
.faq-item .faq-answer p:last-child{margin-bottom:0}
/* CTA */
.cta-section{
  padding:80px 0;
  position:relative;
  background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  isolation:isolate;
  text-align:center;
}
.cta-section::before{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(135deg,rgba(10,22,40,.9),rgba(30,77,123,.85));
  z-index:-1;
}
.cta-content{
  max-width:680px;
  margin:0 auto;
  color:#fff;
}
.cta-content h2{
  font-size:36px;
  font-weight:800;
  margin-bottom:16px;
  letter-spacing:-.5px;
}
.cta-content p{
  font-size:17px;
  color:rgba(255,255,255,.8);
  margin-bottom:32px;
}
.cta-buttons{
  display:flex;
  justify-content:center;
  gap:14px;
  flex-wrap:wrap;
}
/* Footer */
.site-footer{
  background:var(--dark-bg);
  padding:70px 0 0;
  color:rgba(255,255,255,.7);
}
.footer-top{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr;
  gap:48px;
  padding-bottom:48px;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand .brand{
  color:#fff;
  font-size:26px;
  margin-bottom:16px;
}
.footer-brand p{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.55);
  max-width:360px;
}
.footer-links h4{
  color:#fff;
  font-size:16px;
  font-weight:600;
  margin-bottom:20px;
}
.footer-links a{
  display:block;
  color:rgba(255,255,255,.6);
  font-size:14px;
  padding:6px 0;
  transition:all .25s ease;
}
.footer-links a:hover{
  color:var(--accent);
  padding-left:6px;
}
.footer-bottom{
  padding:24px 0;
  text-align:center;
  font-size:13px;
  color:rgba(255,255,255,.4);
  border-top:1px solid rgba(255,255,255,.06);
  margin-top:0;
}
.footer-bottom a{
  color:rgba(255,255,255,.5);
}
.footer-bottom a:hover{color:var(--accent)}
/* Scroll top */
.scroll-top{
  position:fixed;
  bottom:28px;right:28px;
  width:44px;height:44px;
  border-radius:50%;
  background:var(--primary);
  color:#fff;
  font-size:16px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-lg);
  opacity:0;
  pointer-events:none;
  transition:all .3s ease;
  z-index:99;
}
.scroll-top.show{
  opacity:1;
  pointer-events:auto;
}
.scroll-top:hover{
  background:var(--accent);
  color:var(--primary);
  transform:translateY(-4px);
}
/* Responsive */
@media (max-width:1024px){
  .types-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .steps-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .stats-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .intro-grid{
    grid-template-columns:1fr;
    gap:40px;
  }
  .hero h1{
    font-size:42px;
  }
  .search-box{
    width:170px;
  }
}
@media (max-width:768px){
  .header-inner{
    height:64px;
  }
  .main-nav{
    position:fixed;
    top:64px;left:0;right:0;
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    padding:16px 24px 24px;
    gap:8px;
    box-shadow:0 10px 30px rgba(0,0,0,.08);
    transform:translateY(-120%);
    opacity:0;
    transition:all .3s ease;
    border-bottom:1px solid var(--border);
    z-index:-1;
  }
  .main-nav.open{
    transform:translateY(0);
    opacity:1;
  }
  .main-nav a{
    padding:14px 16px;
    font-size:16px;
  }
  .header-actions{
    margin-left:auto;
  }
  .search-box{
    display:none;
  }
  .nav-toggle{
    display:flex;
  }
  .hero{
    min-height:440px;
  }
  .hero-content{
    padding:60px 0;
  }
  .hero h1{
    font-size:34px;
  }
  .hero p{
    font-size:16px;
  }
  .section{
    padding:60px 0;
  }
  .section-head h2{
    font-size:28px;
  }
  .article-grid{
    grid-template-columns:1fr;
  }
  .footer-top{
    grid-template-columns:1fr;
    gap:36px;
  }
}
@media (max-width:520px){
  .types-grid,
  .steps-grid,
  .stats-grid{
    grid-template-columns:1fr;
  }
  .hero h1{
    font-size:28px;
  }
  .hero-actions{
    flex-direction:column;
    align-items:stretch;
  }
  .hero-actions .btn{
    width:100%;
  }
  .section{
    padding:48px 0;
  }
  .section-head{
    margin-bottom:38px;
  }
  .intro-image img{
    height:300px;
  }
  .faq-item summary{
    padding:18px 20px;
    font-size:15px;
  }
  .faq-item .faq-answer{
    padding:0 20px 20px;
  }
}