/* roulang page: index */
:root {
  --primary: #0c1f3d;
  --primary-2: #15335f;
  --accent: #f0b90b;
  --accent-2: #f7d041;
  --bg: #f4f6fb;
  --white: #ffffff;
  --text: #1b2a3a;
  --text-muted: #64748b;
  --border: #e6ebf2;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow: 0 10px 30px rgba(12,31,61,.08);
  --shadow-lg: 0 20px 50px rgba(12,31,61,.14);
  --transition: .25s ease;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 1rem;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--transition); }
button { border: none; background: none; }
input, textarea { font-family: inherit; }
.container { max-width: 1200px; padding-left: 20px; padding-right: 20px; }
.section { padding: 80px 0; }
.section-head { margin-bottom: 48px; }
.section-title { font-size: 2rem; font-weight: 800; color: var(--primary); text-align: center; letter-spacing: .5px; }
.section-sub { text-align: center; color: var(--text-muted); max-width: 720px; margin: 12px auto 0; font-size: .96rem; }

/* ===== Header / Nav ===== */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 24px rgba(12,31,61,.06);
  position: sticky;
  top: 0;
  z-index: 1000;
}
.site-header .navbar { padding: 14px 0; }
.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.28rem;
  color: var(--primary);
  letter-spacing: .5px;
}
.brand-logo .brand-icon {
  width: 42px;
  height: 42px;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1.2rem;
  flex-shrink: 0;
}
.brand-logo .brand-sub {
  display: block;
  font-size: .68rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 1.5px;
  line-height: 1.2;
}
.site-header .nav-link {
  font-weight: 600;
  padding: .55rem 1.1rem;
  border-radius: 10px;
  color: var(--text);
  font-size: .95rem;
}
.site-header .nav-link:hover { color: var(--primary); background: rgba(240,185,11,.1); }
.site-header .nav-link.active { color: var(--primary); background: rgba(240,185,11,.14); font-weight: 700; }
.search-box {
  display: flex;
  align-items: center;
  background: #f6f8fb;
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: .5rem .9rem;
  color: var(--text-muted);
}
.search-box input {
  border: none;
  outline: none;
  background: transparent;
  padding: 0 .5rem;
  width: 135px;
  font-size: .88rem;
  color: var(--text);
}
.btn-accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--primary);
  font-weight: 700;
  border-radius: 50px;
  padding: .6rem 1.5rem;
  border: 0;
  box-shadow: 0 8px 20px rgba(240,185,11,.32);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(240,185,11,.42);
  color: var(--primary);
}
.btn-outline-light {
  border: 1px solid rgba(255,255,255,.7);
  color: #fff;
  border-radius: 50px;
  padding: .6rem 1.5rem;
  font-weight: 600;
  transition: var(--transition);
}
.btn-outline-light:hover { background: #fff; color: var(--primary); border-color: #fff; }

/* ===== Hero ===== */
.hero-section {
  position: relative;
  background: linear-gradient(120deg, rgba(8,17,34,.94), rgba(10,25,48,.76)), url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  color: #fff;
  min-height: 640px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-content { max-width: 800px; position: relative; z-index: 2; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(240,185,11,.15);
  border: 1px solid rgba(240,185,11,.4);
  color: var(--accent);
  border-radius: 50px;
  padding: .4rem 1.1rem;
  font-size: .84rem;
  font-weight: 600;
  letter-spacing: .5px;
}
.hero-section h1 {
  font-size: 3.2rem;
  font-weight: 900;
  letter-spacing: 1px;
  margin: 20px 0 14px;
  line-height: 1.18;
}
.hero-section h1 span { color: var(--accent); }
.hero-section .lead {
  font-size: 1.08rem;
  color: rgba(255,255,255,.84);
  max-width: 680px;
}
.hero-btns { display: flex; gap: 14px; margin-top: 34px; flex-wrap: wrap; }
.hero-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(160px, 220px));
  gap: 14px;
  margin-top: 52px;
}
.hero-meta-item {
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.18);
  backdrop-filter: blur(8px);
  border-radius: 16px;
  padding: 16px 22px;
}
.hero-meta-item b { font-size: 1.5rem; color: var(--accent); font-weight: 800; }
.hero-meta-item span { display: block; font-size: .78rem; color: rgba(255,255,255,.72); letter-spacing: .5px; }

/* ===== Stats strip ===== */
.stats-strip { background: #fff; border-bottom: 1px solid var(--border); padding: 34px 0; }
.stat-box { text-align: center; }
.stat-box .num { font-size: 2.4rem; font-weight: 900; color: var(--primary); line-height: 1.2; }
.stat-box .num em { font-style: normal; color: var(--accent); }
.stat-box .label { color: var(--text-muted); font-weight: 500; font-size: .9rem; }

/* ===== Cards / Sections ===== */
.card-modern {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  height: 100%;
}
.card-modern:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.card-modern .card-img { height: 215px; overflow: hidden; position: relative; }
.card-modern .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.card-modern:hover .card-img img { transform: scale(1.06); }
.card-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(12,31,61,.88);
  color: #fff;
  border-radius: 50px;
  padding: .25rem .85rem;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .3px;
}
.card-modern .card-body { padding: 22px; }
.card-modern .card-title { font-size: 1.08rem; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.card-modern .card-text { color: var(--text-muted); font-size: .9rem; line-height: 1.65; }
.card-link-more { color: var(--accent); font-weight: 700; font-size: .86rem; display: inline-flex; align-items: center; gap: 5px; }

/* ===== Category Cards ===== */
.category-card {
  background: linear-gradient(135deg, #0c1f3d, #15335f);
  border-radius: var(--radius-lg);
  padding: 44px;
  color: #fff;
  overflow: hidden;
  position: relative;
  min-height: 330px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
}
.category-card::after {
  content: "";
  position: absolute;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(240,185,11,.2), transparent 70%);
  top: -60px;
  right: -60px;
  border-radius: 50%;
  transition: var(--transition);
}
.category-card:hover { transform: translateY(-6px); box-shadow: 0 24px 60px rgba(12,31,61,.24); }
.category-card:hover::after { transform: scale(1.2); }
.category-card .cat-icon {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  background: rgba(240,185,11,.15);
  border: 1px solid rgba(240,185,11,.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1.4rem;
  margin-bottom: 26px;
}
.category-card h3 { font-size: 1.7rem; font-weight: 800; margin-bottom: 10px; }
.category-card p { color: rgba(255,255,255,.82); max-width: 360px; font-size: .95rem; }
.category-card .btn-sm-accent {
  margin-top: 20px;
  align-self: flex-start;
  background: var(--accent);
  color: var(--primary);
  border-radius: 50px;
  padding: .45rem 1.2rem;
  font-weight: 700;
  font-size: .85rem;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.category-card .btn-sm-accent:hover { background: var(--accent-2); transform: translateX(3px); }

/* ===== Feature ===== */
.feature-item { display: flex; gap: 18px; padding: 24px 0; border-bottom: 1px dashed var(--border); }
.feature-item:last-child { border-bottom: 0; }
.feature-icon {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}
.feature-body h4 { font-size: 1.05rem; font-weight: 700; color: var(--primary); margin-bottom: 6px; }
.feature-body p { color: var(--text-muted); font-size: .92rem; margin: 0; }

/* ===== News List ===== */
.news-list {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 8px 26px;
}
.news-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px dashed var(--border);
  transition: var(--transition);
}
.news-item:last-child { border-bottom: 0; }
.news-item:hover { transform: translateX(4px); }
.news-cat {
  flex-shrink: 0;
  background: #eef2f7;
  color: var(--primary);
  border-radius: 50px;
  padding: .2rem .85rem;
  font-size: .78rem;
  font-weight: 600;
  white-space: nowrap;
}
.news-title { flex: 1; font-weight: 600; color: var(--text); font-size: .95rem; }
.news-item:hover .news-title { color: var(--primary); }
.news-date { flex-shrink: 0; color: var(--text-muted); font-size: .84rem; }
.empty-tip { text-align: center; color: var(--text-muted); padding: 32px 0; }

/* ===== Process ===== */
.process-step {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  height: 100%;
  transition: var(--transition);
}
.process-step:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.step-num {
  width: 48px;
  height: 48px;
  margin: 0 auto 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: var(--accent);
  font-weight: 800;
  font-size: 1.1rem;
}
.process-step h4 { font-size: 1.05rem; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.process-step p { color: var(--text-muted); font-size: .88rem; margin: 0; }

/* ===== FAQ ===== */
.accordion-custom .accordion-item {
  border: 1px solid var(--border);
  border-radius: 12px !important;
  overflow: hidden;
  margin-bottom: 14px;
  box-shadow: 0 2px 8px rgba(12,31,61,.03);
}
.accordion-custom .accordion-button {
  font-weight: 700;
  color: var(--primary);
  padding: 18px 22px;
  background: #fff;
  font-size: .98rem;
}
.accordion-custom .accordion-button:not(.collapsed) { background: #fff8e1; color: var(--primary); box-shadow: none; }
.accordion-custom .accordion-button:focus { box-shadow: none; border-color: var(--accent); }
.accordion-custom .accordion-body { padding: 18px 22px; color: var(--text-muted); font-size: .93rem; }

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(135deg, #0a1a36, #0c1f3d), url('/assets/images/backpic/back-3.png') center / cover no-repeat;
  border-radius: var(--radius-lg);
  padding: 64px 60px;
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.cta-section::after {
  content: "";
  position: absolute;
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(240,185,11,.22), transparent 70%);
  top: -120px;
  right: -80px;
  border-radius: 50%;
}
.cta-section h2 { font-size: 2rem; font-weight: 800; }
.cta-section p { color: rgba(255,255,255,.8); max-width: 560px; margin-bottom: 26px; }

/* ===== Footer ===== */
.site-footer { background: #0a1a36; color: rgba(255,255,255,.72); padding: 60px 0 0; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,.08); }
.footer-logo { color: #fff; font-size: 1.35rem; font-weight: 800; margin-bottom: 14px; display: flex; align-items: center; gap: 10px; }
.footer-logo .brand-icon { width: 36px; height: 36px; border-radius: 9px; background: rgba(240,185,11,.15); color: var(--accent); display: flex; align-items: center; justify-content: center; }
.footer-about p { font-size: .9rem; color: rgba(255,255,255,.6); max-width: 400px; }
.footer-title { color: #fff; font-size: 1rem; font-weight: 700; margin-bottom: 18px; }
.footer-links a { display: block; color: rgba(255,255,255,.7); margin-bottom: 10px; font-size: .9rem; }
.footer-links a:hover { color: var(--accent); transform: translateX(3px); }
.footer-contact p { font-size: .9rem; margin-bottom: 8px; color: rgba(255,255,255,.6); }
.footer-bottom {
  text-align: center;
  padding: 22px 0;
  font-size: .84rem;
  color: rgba(255,255,255,.42);
}

/* ===== Responsive ===== */
@media (max-width: 991.98px) {
  .search-box { display: none; }
  .section { padding: 60px 0; }
  .hero-section h1 { font-size: 2.5rem; }
  .hero-meta { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 767.98px) {
  .hero-section { min-height: 520px; }
  .hero-section h1 { font-size: 2.05rem; }
  .hero-section .lead { font-size: .96rem; }
  .hero-meta { grid-template-columns: 1fr; gap: 10px; margin-top: 36px; }
  .hero-meta-item { padding: 12px 18px; }
  .section-title { font-size: 1.55rem; }
  .stats-strip .stat-box { margin-bottom: 18px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .news-item { flex-wrap: wrap; gap: 8px; }
  .news-title { flex-basis: 100%; order: 3; }
  .hero-btns .btn-accent, .hero-btns .btn-outline-light { width: 100%; justify-content: center; }
}
@media (max-width: 520px) {
  .brand-logo { font-size: 1.05rem; }
  .brand-logo .brand-sub { display: none; }
  .hero-section h1 { font-size: 1.65rem; }
  .hero-section .lead { font-size: .9rem; }
  .category-card { padding: 28px 24px; min-height: 260px; }
  .cta-section { padding: 40px 26px; }
  .cta-section h2 { font-size: 1.4rem; }
  .card-modern .card-img { height: 180px; }
}

/* roulang page: category1 */
:root {
            --primary: #0b1b3a;
            --primary-light: #14294d;
            --primary-dark: #060f22;
            --accent: #f5a623;
            --accent-light: #ffb84d;
            --accent-dark: #d98e15;
            --bg: #f4f6fb;
            --white: #ffffff;
            --text: #1e2a3a;
            --text-muted: #6b7a90;
            --border: #e3e8f0;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(11, 27, 58, 0.06);
            --shadow-md: 0 8px 24px rgba(11, 27, 58, 0.08);
            --shadow-lg: 0 16px 40px rgba(11, 27, 58, 0.12);
            --transition: all 0.3s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }
        /* ---------- Header / Nav ---------- */
        .site-header {
            position: relative;
            z-index: 1000;
            background: var(--white);
            box-shadow: 0 2px 12px rgba(11, 27, 58, 0.08);
            border-bottom: 1px solid var(--border);
        }
        .site-header .navbar {
            padding: 12px 0;
        }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--primary) !important;
            line-height: 1.2;
            letter-spacing: 0.5px;
        }
        .brand-logo .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            color: var(--accent);
            font-size: 18px;
            box-shadow: 0 4px 14px rgba(11, 27, 58, 0.2);
            flex-shrink: 0;
        }
        .brand-sub {
            display: block;
            font-size: 10px;
            font-weight: 600;
            letter-spacing: 2px;
            color: var(--text-muted);
            margin-top: 2px;
        }
        .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            padding: 8px 16px !important;
            border-radius: 8px;
            transition: var(--transition);
            position: relative;
        }
        .navbar-nav .nav-link:hover {
            color: var(--primary);
            background: rgba(11, 27, 58, 0.05);
        }
        .navbar-nav .nav-link.active {
            color: var(--primary);
            background: rgba(11, 27, 58, 0.06);
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 4px;
            height: 2px;
            border-radius: 2px;
            background: var(--accent);
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 50px;
            padding: 6px 14px;
            transition: var(--transition);
            width: 220px;
        }
        .search-box:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(245, 166, 35, 0.12);
            background: var(--white);
        }
        .search-box i {
            color: var(--text-muted);
            font-size: 14px;
        }
        .search-box input {
            border: none;
            background: transparent;
            outline: none;
            width: 100%;
            font-size: 14px;
            color: var(--text);
            padding: 2px 0;
        }
        .search-box input::placeholder {
            color: #9aabc0;
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent);
            color: var(--primary-dark) !important;
            font-weight: 700;
            border: none;
            border-radius: 50px;
            padding: 9px 22px;
            font-size: 14px;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(245, 166, 35, 0.3);
            white-space: nowrap;
        }
        .btn-accent:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 22px rgba(245, 166, 35, 0.4);
            color: var(--primary-dark) !important;
        }
        .btn-outline-light {
            border: 1.5px solid rgba(255, 255, 255, 0.8);
            border-radius: 50px;
            padding: 9px 22px;
            font-weight: 600;
            font-size: 14px;
            color: var(--white);
            background: transparent;
            transition: var(--transition);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--white);
            color: var(--white);
            transform: translateY(-2px);
        }
        .navbar-toggler {
            border: none;
            padding: 6px 10px;
            border-radius: 8px;
            background: rgba(11, 27, 58, 0.04);
        }
        .navbar-toggler:focus {
            box-shadow: none;
            border-color: var(--accent);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(11,27,58,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        /* ---------- Hero ---------- */
        .category-hero {
            position: relative;
            padding: 100px 0 60px;
            background: linear-gradient(135deg, rgba(6, 15, 34, 0.92) 0%, rgba(11, 27, 58, 0.85) 55%, rgba(20, 41, 77, 0.78) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: var(--white);
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: rgba(245, 166, 35, 0.08);
            filter: blur(60px);
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.16);
            border-radius: 50px;
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            color: rgba(255, 255, 255, 0.92);
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }
        .hero-badge i {
            color: var(--accent);
        }
        .category-hero h1 {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: 1px;
            margin-bottom: 20px;
        }
        .category-hero h1 span {
            color: var(--accent);
        }
        .hero-desc {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 620px;
            line-height: 1.8;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 48px;
        }
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            max-width: 640px;
            padding: 24px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
        }
        .hero-stat {
            text-align: left;
        }
        .hero-stat .num {
            font-size: 32px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .hero-stat .label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 4px;
            letter-spacing: 0.5px;
        }
        /* ---------- Section general ---------- */
        .section {
            padding: 72px 0;
        }
        .section-alt {
            background: var(--white);
        }
        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 48px;
        }
        .section-head .eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 12px;
        }
        .section-head h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .section-head p {
            color: var(--text-muted);
            font-size: 16px;
            line-height: 1.7;
            margin-bottom: 0;
        }
        /* ---------- Feature cards ---------- */
        .feature-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            height: 100%;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(160deg, rgba(245, 166, 35, 0.04) 0%, transparent 40%);
            opacity: 0;
            transition: var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(245, 166, 35, 0.4);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 58px;
            height: 58px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--white);
            margin-bottom: 22px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            box-shadow: 0 6px 18px rgba(11, 27, 58, 0.22);
        }
        .feature-icon.accent-bg {
            background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
            box-shadow: 0 6px 18px rgba(245, 166, 35, 0.25);
            color: var(--primary-dark);
        }
        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 14px;
        }
        .feature-card p {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.7;
            margin-bottom: 0;
        }
        /* ---------- Preview cards ---------- */
        .preview-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 100%;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .preview-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(245, 166, 35, 0.35);
        }
        .preview-card .thumb {
            position: relative;
            height: 200px;
            overflow: hidden;
        }
        .preview-card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .preview-card:hover .thumb img {
            transform: scale(1.05);
        }
        .preview-card .thumb .tag-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(11, 27, 58, 0.85);
            color: var(--white);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 50px;
            backdrop-filter: blur(4px);
        }
        .preview-card .body {
            padding: 22px 22px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .preview-card .body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 10px;
        }
        .preview-card .body h3 a:hover {
            color: var(--accent-dark);
        }
        .preview-card .body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 18px;
            flex: 1;
        }
        .preview-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--border);
            padding-top: 14px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .preview-meta i {
            color: var(--accent);
            margin-right: 4px;
        }
        .preview-meta .meta-right {
            display: flex;
            gap: 12px;
        }
        .view-all-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
            transition: var(--transition);
        }
        .view-all-link:hover {
            color: var(--accent);
            gap: 10px;
        }
        /* ---------- Process ---------- */
        .process-section {
            background: var(--primary);
            color: var(--white);
            position: relative;
            overflow: hidden;
            padding: 80px 0;
        }
        .process-section::before {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -10%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: rgba(245, 166, 35, 0.06);
            filter: blur(60px);
        }
        .process-section .container {
            position: relative;
            z-index: 2;
        }
        .process-section .section-head h2 {
            color: var(--white);
        }
        .process-section .section-head p {
            color: rgba(255, 255, 255, 0.7);
        }
        .process-section .eyebrow {
            color: var(--accent);
        }
        .process-step {
            text-align: center;
            padding: 28px 20px;
            position: relative;
        }
        .process-step::after {
            content: '→';
            position: absolute;
            right: -18px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 24px;
            color: rgba(255, 255, 255, 0.3);
            font-weight: 700;
        }
        .process-step:last-child::after {
            display: none;
        }
        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 66px;
            height: 66px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.12);
            border: 2px solid rgba(245, 166, 35, 0.6);
            font-size: 24px;
            font-weight: 800;
            color: var(--accent);
            margin-bottom: 20px;
            backdrop-filter: blur(4px);
        }
        .process-step h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .process-step p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.6;
            margin-bottom: 0;
        }
        /* ---------- Coverage ---------- */
        .coverage-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 180px;
            transition: var(--transition);
            border: none;
            box-shadow: var(--shadow-sm);
        }
        .coverage-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .coverage-card:hover img {
            transform: scale(1.06);
        }
        .coverage-card .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 27, 58, 0.05) 30%, rgba(11, 27, 58, 0.85) 100%);
            display: flex;
            align-items: flex-end;
            padding: 20px;
            transition: var(--transition);
        }
        .coverage-card:hover .overlay {
            background: linear-gradient(180deg, rgba(11, 27, 58, 0.15) 30%, rgba(11, 27, 58, 0.92) 100%);
        }
        .coverage-card .overlay h3 {
            color: var(--white);
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 4px;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        }
        .coverage-card .overlay span {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.8);
        }
        /* ---------- Statistics ---------- */
        .stats-band {
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 50px 40px;
            border: 1px solid var(--border);
            margin-top: -60px;
            position: relative;
            z-index: 3;
        }
        .stat-item {
            text-align: center;
            padding: 10px;
            position: relative;
        }
        .stat-item:not(:last-child)::after {
            content: '';
            position: absolute;
            right: 0;
            top: 20%;
            bottom: 20%;
            width: 1px;
            background: var(--border);
        }
        .stat-item .num {
            font-size: 40px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item .num small {
            font-size: 22px;
            color: var(--accent);
            font-weight: 700;
        }
        .stat-item .label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 8px;
        }
        /* ---------- FAQ ---------- */
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 22px 24px;
            margin-bottom: 14px;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(245, 166, 35, 0.35);
            box-shadow: var(--shadow-sm);
        }
        .faq-q {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            gap: 16px;
        }
        .faq-q h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 0;
            flex: 1;
        }
        .faq-q i {
            color: var(--accent);
            font-size: 16px;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-q i {
            transform: rotate(45deg);
        }
        .faq-a {
            display: none;
            padding-top: 14px;
            border-top: 1px solid var(--border);
            margin-top: 14px;
        }
        .faq-item.open .faq-a {
            display: block;
        }
        .faq-a p {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.7;
            margin-bottom: 0;
        }
        /* ---------- CTA ---------- */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 60%, var(--primary-dark) 100%);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(245, 166, 35, 0.1);
            filter: blur(80px);
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -5%;
            width: 350px;
            height: 350px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            filter: blur(50px);
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            color: var(--white);
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-inner p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 17px;
            line-height: 1.8;
            margin-bottom: 32px;
        }
        .cta-buttons {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 14px;
        }
        .btn-cta-primary {
            background: var(--accent);
            color: var(--primary-dark) !important;
            font-weight: 700;
            border: none;
            border-radius: 50px;
            padding: 12px 30px;
            font-size: 15px;
            transition: var(--transition);
            box-shadow: 0 6px 22px rgba(245, 166, 35, 0.4);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-cta-primary:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(245, 166, 35, 0.5);
        }
        .btn-cta-ghost {
            background: rgba(255, 255, 255, 0.08);
            color: var(--white);
            border: 1.5px solid rgba(255, 255, 255, 0.5);
            border-radius: 50px;
            padding: 12px 30px;
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-cta-ghost:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: var(--white);
            color: var(--white);
            transform: translateY(-2px);
        }
        /* ---------- Footer ---------- */
        .site-footer {
            background: #0a1526;
            color: rgba(255, 255, 255, 0.85);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--white);
            margin-bottom: 16px;
        }
        .footer-logo .brand-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.1);
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
        }
        .footer-about p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.8;
            margin-bottom: 0;
            max-width: 360px;
        }
        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 18px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-contact p {
            margin-bottom: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-contact i {
            color: var(--accent);
            width: 20px;
            text-align: center;
        }
        .footer-bottom {
            padding: 22px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        /* ---------- Responsive ---------- */
        @media (min-width: 992px) {
            .navbar-expand-lg .navbar-nav .nav-link {
                padding-right: 18px;
                padding-left: 18px;
            }
            .navbar-nav.mx-auto {
                margin-left: auto !important;
                margin-right: auto !important;
            }
        }
        @media (max-width: 1024px) {
            .category-hero h1 {
                font-size: 38px;
            }
            .section-head h2 {
                font-size: 30px;
            }
            .stat-item .num {
                font-size: 32px;
            }
            .stats-band {
                padding: 36px 24px;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .search-box {
                width: 100%;
            }
            .navbar-collapse {
                padding: 16px 0 8px;
            }
            .navbar-nav .nav-link {
                padding: 10px 0 !important;
                border-bottom: 1px solid var(--border);
            }
            .navbar-nav .nav-link.active::after {
                display: none;
            }
            .category-hero {
                padding: 70px 0 40px;
            }
            .category-hero h1 {
                font-size: 32px;
            }
            .hero-desc {
                font-size: 15px;
            }
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
                padding: 20px 0;
            }
            .hero-stat .num {
                font-size: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .footer-about {
                grid-column: 1 / -1;
            }
            .process-step::after {
                display: none;
            }
            .stat-item:not(:last-child)::after {
                display: none;
            }
            .stats-band {
                margin-top: -40px;
            }
        }
        @media (max-width: 520px) {
            .section-head h2 {
                font-size: 26px;
            }
            .category-hero h1 {
                font-size: 28px;
            }
            .brand-logo {
                font-size: 18px;
            }
            .brand-sub {
                font-size: 9px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .hero-actions {
                flex-direction: column;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            .stats-band {
                padding: 30px 18px;
            }
            .feature-card {
                padding: 26px 22px;
            }
        }

/* roulang page: article */
:root {
    --primary: #0d1b2a;
    --primary-light: #233554;
    --accent: #e94560;
    --accent-hover: #d63050;
    --accent-light: rgba(233, 69, 96, 0.08);
    --bg-body: #f6f8fb;
    --bg-card: #ffffff;
    --bg-soft: #f1f5f9;
    --text-dark: #0f172a;
    --text-body: #334155;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --border: #e2e8f0;
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 8px;
    --shadow-sm: 0 2px 10px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 8px 30px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 18px 50px rgba(15, 23, 42, 0.14);
    --transition: all 0.3s ease;
}
* { box-sizing: border-box; }
html, body { overflow-x: hidden; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    color: var(--text-body);
    background: var(--bg-body);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; }
img { max-width: 100%; height: auto; }
.container { max-width: 1200px; }
.section { padding: 84px 0; }
.section-bg { background: var(--bg-soft); }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 52px; }
.section-tag {
    display: inline-block;
    background: var(--accent-light);
    color: var(--accent);
    padding: 6px 18px;
    border-radius: 30px;
    font-size: 0.84rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    margin-bottom: 12px;
}
.section-title {
    font-size: 2.15rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
    line-height: 1.3;
}
.section-desc { color: var(--text-muted); font-size: 0.96rem; }

.site-header {
    background: #ffffff;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04);
    position: sticky;
    top: 0;
    z-index: 1000;
}
.navbar { padding: 12px 0; }
.brand-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.12rem;
    color: var(--primary) !important;
    line-height: 1.15;
    letter-spacing: 0.01em;
}
.brand-logo:hover { color: var(--primary); }
.brand-icon {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, #e94560, #ff6b81);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.25rem;
    flex-shrink: 0;
    box-shadow: 0 4px 14px rgba(233, 69, 96, 0.3);
}
.brand-sub {
    display: block;
    font-size: 0.62rem;
    letter-spacing: 0.24em;
    color: var(--text-light);
    font-weight: 400;
}
.navbar-nav { gap: 6px; }
.navbar .nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-muted);
    padding: 10px 18px;
    border-radius: 30px;
    transition: var(--transition);
    position: relative;
}
.navbar .nav-link:hover { color: var(--primary); background: var(--bg-soft); }
.navbar .nav-link.active {
    color: #fff;
    background: var(--primary);
    box-shadow: 0 4px 14px rgba(13, 27, 42, 0.22);
}
.search-box {
    display: flex;
    align-items: center;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: 50px;
    padding: 0 14px;
    height: 42px;
    transition: var(--transition);
    color: var(--text-muted);
    min-width: 180px;
}
.search-box:focus-within {
    border-color: var(--accent);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(233, 69, 96, 0.12);
}
.search-box input {
    border: none;
    background: transparent;
    outline: none;
    width: 100px;
    font-size: 0.85rem;
    color: var(--text-dark);
    padding: 6px 4px;
}
.search-box input::placeholder { color: var(--text-light); }
.btn {
    border-radius: 10px;
    padding: 10px 22px;
    font-weight: 500;
    transition: var(--transition);
    font-size: 0.9rem;
    border: none;
}
.btn-accent {
    background: var(--accent);
    color: #fff;
    padding: 10px 24px;
    box-shadow: 0 4px 16px rgba(233, 69, 96, 0.26);
}
.btn-accent:hover, .btn-accent:focus {
    background: var(--accent-hover);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(233, 69, 96, 0.32);
}
.btn-cta-primary {
    background: var(--accent);
    color: #fff;
    padding: 14px 36px;
    border-radius: 40px;
    font-size: 1rem;
    box-shadow: 0 8px 24px rgba(233, 69, 96, 0.35);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.btn-cta-primary:hover, .btn-cta-primary:focus {
    background: var(--accent-hover);
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(233, 69, 96, 0.42);
}
.btn-cta-outline {
    background: transparent;
    color: #fff;
    padding: 13px 32px;
    border-radius: 40px;
    font-size: 1rem;
    border: 1.5px solid rgba(255, 255, 255, 0.7);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.btn-cta-outline:hover, .btn-cta-outline:focus {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    border-color: #fff;
    transform: translateY(-3px);
}
.navbar-toggler {
    border: none;
    background: transparent;
    padding: 6px 10px;
    border-radius: 8px;
}
.navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(233, 69, 96, 0.2); }
.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%230d1b2a' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.article-hero {
    position: relative;
    background-size: cover;
    background-position: center;
    padding: 86px 0 78px;
    color: #fff;
}
.article-hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(130deg, rgba(13, 27, 42, 0.92) 0%, rgba(13, 27, 42, 0.74) 55%, rgba(233, 69, 96, 0.38) 100%);
}
.article-hero .container { position: relative; z-index: 2; }
.article-badge {
    display: inline-block;
    background: var(--accent);
    color: #fff;
    padding: 6px 20px;
    border-radius: 30px;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    margin-bottom: 20px;
    box-shadow: 0 4px 16px rgba(233, 69, 96, 0.35);
}
.article-title {
    font-size: 2.55rem;
    font-weight: 700;
    color: #fff;
    line-height: 1.28;
    margin-bottom: 18px;
    text-shadow: 0 2px 24px rgba(0, 0, 0, 0.25);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}
.article-meta {
    display: flex;
    justify-content: center;
    gap: 30px;
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.82);
}
.article-meta span { display: inline-flex; align-items: center; gap: 7px; }
.article-hero-divider {
    width: 64px;
    height: 3px;
    background: var(--accent);
    border-radius: 3px;
    margin: 22px auto 0;
}

.breadcrumb-bar {
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 14px 0;
    font-size: 0.84rem;
}
.breadcrumb-nav { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.breadcrumb-nav a { color: var(--text-muted); display: inline-flex; align-items: center; gap: 6px; }
.breadcrumb-nav a:hover { color: var(--accent); }
.breadcrumb-sep { color: var(--text-light); font-size: 0.75rem; }
.breadcrumb-current { color: var(--primary); font-weight: 500; }

.article-main { padding: 60px 0 76px; }
.article-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 44px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    margin-bottom: 28px;
}
.article-body { font-size: 1.03rem; line-height: 1.85; color: var(--text-body); }
.article-body h2 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--primary);
    margin: 2.2rem 0 1rem;
    padding-bottom: 0.6rem;
    border-bottom: 2px solid var(--bg-soft);
}
.article-body h3 {
    font-size: 1.28rem;
    font-weight: 600;
    color: var(--primary);
    margin: 1.8rem 0 0.8rem;
}
.article-body p { margin-bottom: 1.15rem; }
.article-body img { border-radius: var(--radius-md); margin: 1.5rem 0; box-shadow: var(--shadow-sm); }
.article-body ul, .article-body ol { padding-left: 1.6rem; margin-bottom: 1.2rem; }
.article-body li { margin-bottom: 0.4rem; }
.article-body blockquote {
    border-left: 4px solid var(--accent);
    background: var(--accent-light);
    padding: 18px 22px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 1.6rem 0;
    color: var(--text-dark);
    font-style: italic;
}
.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: 0.92rem;
}
.article-body table th, .article-body table td {
    border: 1px solid var(--border);
    padding: 10px 14px;
    text-align: left;
}
.article-body table th { background: var(--bg-soft); font-weight: 600; }
.article-body a { color: var(--accent); border-bottom: 1px dashed transparent; }
.article-body a:hover { border-bottom-color: var(--accent); }

.article-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    padding-top: 22px;
    margin-top: 24px;
    border-top: 1px solid var(--border);
}
.tags-label { font-weight: 600; color: var(--text-muted); font-size: 0.88rem; }
.tag-link {
    display: inline-block;
    background: var(--bg-soft);
    color: var(--primary);
    padding: 5px 15px;
    border-radius: 30px;
    font-size: 0.82rem;
    transition: var(--transition);
    border: 1px solid transparent;
}
.tag-link:hover {
    background: var(--accent);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(233, 69, 96, 0.28);
    border-color: var(--accent);
}
.article-share {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 20px;
    margin-top: 16px;
    color: var(--text-muted);
    font-size: 0.88rem;
}
.article-share a {
    width: 38px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--bg-soft);
    color: var(--text-muted);
    transition: var(--transition);
}
.article-share a:hover {
    background: var(--accent);
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(233, 69, 96, 0.28);
}

.not-found-icon {
    width: 84px;
    height: 84px;
    background: var(--bg-soft);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--text-light);
    margin: 0 auto 20px;
}

.sidebar { position: sticky; top: 96px; }
.sidebar-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 26px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    margin-bottom: 24px;
}
.sidebar-card-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--primary);
    padding-bottom: 14px;
    margin-bottom: 12px;
    border-bottom: 2px solid var(--bg-soft);
    display: flex;
    align-items: center;
    gap: 8px;
}
.sidebar-post {
    display: flex;
    gap: 14px;
    padding: 12px 0;
    border-bottom: 1px dashed var(--border);
    align-items: center;
}
.sidebar-post:last-child { border-bottom: none; }
.sidebar-post img {
    width: 76px;
    height: 56px;
    object-fit: cover;
    border-radius: 10px;
    flex-shrink: 0;
}
.sidebar-post a {
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-dark);
    line-height: 1.4;
    display: block;
    margin-bottom: 2px;
}
.sidebar-post a:hover { color: var(--accent); }
.sidebar-post span { font-size: 0.74rem; color: var(--text-muted); }
.sidebar-cta {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #fff;
    border: none;
    text-align: center;
    padding: 36px 26px;
}
.sidebar-cta-icon {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.12);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: #ff6b81;
    margin: 0 auto 16px;
}
.sidebar-cta h4 { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; color: #fff; }
.sidebar-cta p { font-size: 0.86rem; color: rgba(255, 255, 255, 0.72); margin-bottom: 18px; }

.content-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    height: 100%;
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
}
.content-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}
.content-card-cover {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
}
.content-card-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.content-card:hover .content-card-cover img { transform: scale(1.05); }
.content-card-cover::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(13, 27, 42, 0.18) 0%, transparent 55%);
}
.card-badge {
    position: absolute;
    top: 14px;
    left: 14px;
    background: rgba(233, 69, 96, 0.94);
    color: #fff;
    font-size: 0.75rem;
    padding: 4px 14px;
    border-radius: 30px;
    font-weight: 500;
    letter-spacing: 0.02em;
    z-index: 2;
    box-shadow: 0 2px 8px rgba(233, 69, 96, 0.4);
}
.content-card-body {
    padding: 22px 22px 26px;
    display: flex;
    flex-direction: column;
    flex: 1;
}
.card-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.4;
    margin-bottom: 8px;
    display: block;
    transition: var(--transition);
}
.card-title:hover { color: var(--accent); }
.content-card-body p {
    color: var(--text-muted);
    font-size: 0.87rem;
    line-height: 1.6;
    margin-bottom: 14px;
    flex: 1;
}
.card-link {
    color: var(--accent);
    font-size: 0.85rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}
.card-link:hover { gap: 9px; }

.accordion { max-width: 860px; margin: 0 auto; }
.accordion-item {
    border: 1px solid var(--border) !important;
    border-radius: var(--radius-md) !important;
    overflow: hidden;
    margin-bottom: 14px;
    box-shadow: var(--shadow-sm);
    background: #fff;
}
.accordion-button {
    font-weight: 600;
    color: var(--primary);
    background: #fff;
    padding: 18px 22px;
    font-size: 1rem;
    transition: var(--transition);
    border: none;
    box-shadow: none !important;
}
.accordion-button::after {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23e94560'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
    transition: transform 0.3s ease;
}
.accordion-button:hover { background: var(--bg-soft); }
.accordion-button:not(.collapsed) {
    background: var(--accent-light);
    color: var(--accent);
}
.accordion-button:not(.collapsed)::after {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23e94560'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
}
.accordion-body {
    padding: 18px 22px 24px;
    color: var(--text-body);
    font-size: 0.92rem;
    line-height: 1.75;
}

.cta-section {
    background: linear-gradient(130deg, var(--primary) 0%, var(--primary-light) 100%);
    padding: 88px 0;
    color: #fff;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    top: -60%; right: -20%;
    width: 520px;
    height: 520px;
    background: radial-gradient(circle, rgba(233, 69, 96, 0.22) 0%, transparent 70%);
    border-radius: 50%;
}
.cta-section::after {
    content: '';
    position: absolute;
    bottom: -50%; left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
    border-radius: 50%;
}
.cta-inner { position: relative; z-index: 2; max-width: 720px; margin: 0 auto; }
.cta-inner h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 14px;
    color: #fff;
}
.cta-inner p {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 34px;
}
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.site-footer {
    background: var(--primary);
    color: rgba(255, 255, 255, 0.72);
    padding: 70px 0 0;
    font-size: 0.88rem;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1.2fr;
    gap: 50px;
    padding-bottom: 48px;
}
.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.15rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 14px;
}
.footer-about p { font-size: 0.86rem; line-height: 1.8; color: rgba(255, 255, 255, 0.6); max-width: 360px; }
.footer-title {
    font-size: 0.98rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 18px;
    position: relative;
    padding-bottom: 12px;
}
.footer-title::after {
    content: '';
    position: absolute;
    left: 0; bottom: 0;
    width: 32px;
    height: 3px;
    background: var(--accent);
    border-radius: 3px;
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: rgba(255, 255, 255, 0.64); transition: var(--transition); }
.footer-links a:hover { color: #fff; padding-left: 6px; }
.footer-contact p { margin-bottom: 10px; display: flex; align-items: center; gap: 8px; color: rgba(255, 255, 255, 0.64); }
.footer-contact i { color: var(--accent); width: 18px; text-align: center; }
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 20px 0;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.46);
    text-align: center;
}

@media (max-width: 991.98px) {
    .navbar-collapse {
        background: #fff;
        padding: 18px;
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-md);
        margin-top: 14px;
        border: 1px solid var(--border);
    }
    .navbar-nav { margin: 0 0 14px 0; gap: 4px; }
    .navbar .nav-link { padding: 10px 14px; }
    .search-box { width: 100%; min-width: 0; }
    .article-title { font-size: 2rem; }
    .sidebar { position: static; margin-top: 20px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
    .section { padding: 64px 0; }
    .article-card { padding: 32px; }
}
@media (max-width: 767.98px) {
    .section { padding: 52px 0; }
    .section-title { font-size: 1.7rem; }
    .article-hero { padding: 58px 0 52px; }
    .article-title { font-size: 1.65rem; }
    .article-meta { flex-direction: column; gap: 8px; }
    .article-card { padding: 24px; }
    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
    .cta-section { padding: 60px 0; }
    .cta-inner h2 { font-size: 1.7rem; }
    .footer-bottom { padding: 16px 0; }
}
@media (max-width: 575.98px) {
    .article-hero { padding: 46px 0 44px; }
    .article-title { font-size: 1.35rem; }
    .brand-logo { font-size: 0.95rem; }
    .brand-icon { width: 36px; height: 36px; font-size: 1rem; }
    .article-tags { gap: 8px; }
    .cta-buttons { flex-direction: column; align-items: center; }
}

.btn:focus-visible, .nav-link:focus-visible, a:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* roulang page: category2 */
:root {
        --primary: #1a2b4a;
        --primary-light: #2d4a7a;
        --secondary: #d4a24e;
        --secondary-light: #e8c67a;
        --accent: #f0a020;
        --accent-hover: #d48c16;
        --bg: #f6f8fc;
        --bg-alt: #eef1f7;
        --bg-dark: #131c30;
        --text: #1d2738;
        --text-muted: #6b7792;
        --border: #e3e8f0;
        --white: #ffffff;
        --radius: 14px;
        --radius-lg: 22px;
        --shadow: 0 4px 20px rgba(26, 43, 74, 0.08);
        --shadow-lg: 0 12px 40px rgba(26, 43, 74, 0.14);
        --transition: all 0.3s ease;
        --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: var(--font-sans);
        background: var(--bg);
        color: var(--text);
        line-height: 1.7;
        font-size: 16px;
        -webkit-font-smoothing: antialiased;
    }

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

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

    button,
    input {
        font-family: inherit;
    }

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

    /* ===== 导航 ===== */
    .site-header {
        background: var(--white);
        box-shadow: 0 2px 16px rgba(26, 43, 74, 0.08);
        position: sticky;
        top: 0;
        z-index: 1000;
        border-bottom: 1px solid rgba(227, 232, 240, 0.7);
    }

    .site-header .navbar {
        padding: 14px 0;
        min-height: 74px;
    }

    .brand-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        color: var(--primary);
        font-size: 18px;
        font-weight: 800;
        line-height: 1.3;
        letter-spacing: 0.5px;
    }

    .brand-logo .brand-icon {
        width: 42px;
        height: 42px;
        background: linear-gradient(135deg, var(--primary), var(--primary-light));
        border-radius: 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        font-size: 17px;
        flex-shrink: 0;
        box-shadow: 0 4px 12px rgba(26, 43, 74, 0.3);
    }

    .brand-logo .brand-sub {
        display: block;
        font-size: 10px;
        font-weight: 600;
        letter-spacing: 2.2px;
        color: var(--text-muted);
        line-height: 1.2;
        margin-top: 2px;
    }

    .navbar-nav {
        gap: 4px;
    }

    .navbar-nav .nav-link {
        padding: 8px 18px;
        font-weight: 600;
        font-size: 15px;
        color: var(--text);
        border-radius: 30px;
        transition: var(--transition);
        white-space: nowrap;
    }

    .navbar-nav .nav-link:hover {
        color: var(--primary);
        background: rgba(26, 43, 74, 0.05);
    }

    .navbar-nav .nav-link.active {
        color: var(--white);
        background: var(--primary);
        box-shadow: 0 4px 12px rgba(26, 43, 74, 0.25);
    }

    .search-box {
        display: flex;
        align-items: center;
        background: var(--bg);
        border: 1px solid var(--border);
        border-radius: 30px;
        padding: 6px 14px;
        transition: var(--transition);
        width: 200px;
    }

    .search-box:focus-within {
        border-color: var(--secondary);
        box-shadow: 0 0 0 3px rgba(212, 162, 78, 0.15);
        background: var(--white);
    }

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

    .search-box input {
        border: none;
        outline: none;
        background: transparent;
        font-size: 14px;
        width: 100%;
        padding: 2px 0;
        color: var(--text);
    }

    .search-box input::placeholder {
        color: #9aa7bf;
    }

    .btn-accent {
        background: linear-gradient(135deg, var(--accent), #f5b840);
        color: var(--primary);
        font-weight: 700;
        font-size: 14px;
        padding: 9px 22px;
        border-radius: 30px;
        border: none;
        transition: var(--transition);
        box-shadow: 0 4px 14px rgba(240, 160, 32, 0.3);
        white-space: nowrap;
    }

    .btn-accent:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 20px rgba(240, 160, 32, 0.4);
        color: var(--primary);
    }

    .btn-accent:active {
        transform: translateY(0);
        box-shadow: 0 2px 8px rgba(240, 160, 32, 0.3);
    }

    .navbar-toggler {
        border: none;
        border-radius: 10px;
        padding: 6px 10px;
    }

    .navbar-toggler:focus {
        box-shadow: none;
        outline: 2px solid rgba(26, 43, 74, 0.2);
    }

    .navbar-toggler-icon {
        width: 22px;
        height: 22px;
        background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%231a2b4a' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    }

    /* ===== 通用板块 ===== */
    .section {
        padding: 80px 0;
    }

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

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

    .section-head {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        gap: 20px;
        margin-bottom: 40px;
        flex-wrap: wrap;
    }

    .section-title {
        font-size: 30px;
        font-weight: 800;
        color: var(--primary);
        margin-bottom: 10px;
        letter-spacing: 0.5px;
        position: relative;
        line-height: 1.3;
    }

    .section-title::after {
        content: "";
        display: block;
        width: 46px;
        height: 3px;
        background: var(--accent);
        border-radius: 3px;
        margin-top: 10px;
    }

    .section-subtitle {
        color: var(--text-muted);
        font-size: 15px;
        max-width: 560px;
    }

    .section-title-wrap {
        text-align: center;
        margin-bottom: 46px;
    }

    .section-title-wrap .section-title {
        display: inline-block;
    }

    .section-title-wrap .section-title::after {
        margin-left: auto;
        margin-right: auto;
    }

    .section-title-wrap .section-subtitle {
        max-width: 640px;
        margin: 12px auto 0;
    }

    .badge-soft {
        display: inline-block;
        background: rgba(212, 162, 78, 0.14);
        color: #a3761f;
        font-size: 13px;
        font-weight: 600;
        padding: 4px 14px;
        border-radius: 30px;
        letter-spacing: 0.5px;
        margin-bottom: 14px;
    }

    /* ===== 页内 Banner ===== */
    .page-banner {
        position: relative;
        padding: 90px 0 70px;
        background: linear-gradient(135deg, rgba(19, 28, 48, 0.92), rgba(26, 43, 74, 0.85)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
        color: var(--white);
        overflow: hidden;
    }

    .page-banner::before {
        content: "";
        position: absolute;
        top: -60%;
        right: -10%;
        width: 450px;
        height: 450px;
        background: radial-gradient(circle, rgba(240, 160, 32, 0.2) 0%, transparent 70%);
        border-radius: 50%;
    }

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

    .page-banner h1 {
        font-size: 42px;
        font-weight: 800;
        letter-spacing: 1px;
        margin: 8px 0 16px;
        line-height: 1.2;
    }

    .page-banner .lead {
        font-size: 17px;
        color: rgba(255, 255, 255, 0.85);
        max-width: 640px;
        margin-bottom: 10px;
    }

    .breadcrumb-custom {
        display: flex;
        gap: 8px;
        align-items: center;
        font-size: 14px;
        color: rgba(255, 255, 255, 0.7);
        margin-bottom: 18px;
        flex-wrap: wrap;
    }

    .breadcrumb-custom a {
        color: rgba(255, 255, 255, 0.7);
    }

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

    .breadcrumb-custom .sep {
        color: rgba(255, 255, 255, 0.4);
        font-size: 12px;
    }

    /* ===== 分类标签 ===== */
    .tag-row {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-top: 24px;
    }

    .tag-pill {
        background: rgba(255, 255, 255, 0.12);
        border: 1px solid rgba(255, 255, 255, 0.2);
        color: rgba(255, 255, 255, 0.9);
        padding: 6px 16px;
        border-radius: 30px;
        font-size: 13px;
        font-weight: 500;
        transition: var(--transition);
        cursor: pointer;
    }

    .tag-pill:hover {
        background: rgba(240, 160, 32, 0.25);
        border-color: var(--accent);
        color: #fff;
    }

    /* ===== 攻略卡片 ===== */
    .strategy-card {
        background: var(--white);
        border-radius: var(--radius-lg);
        overflow: hidden;
        border: 1px solid var(--border);
        transition: var(--transition);
        height: 100%;
        box-shadow: var(--shadow);
        display: flex;
        flex-direction: column;
    }

    .strategy-card:hover {
        transform: translateY(-6px);
        box-shadow: var(--shadow-lg);
        border-color: rgba(212, 162, 78, 0.4);
    }

    .strategy-card .card-img-wrap {
        position: relative;
        overflow: hidden;
        aspect-ratio: 16/9;
    }

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

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

    .strategy-card .card-img-wrap .img-badge {
        position: absolute;
        top: 14px;
        left: 14px;
        background: rgba(26, 43, 74, 0.88);
        color: #fff;
        padding: 4px 14px;
        border-radius: 30px;
        font-size: 12px;
        font-weight: 600;
        letter-spacing: 0.3px;
        backdrop-filter: blur(4px);
    }

    .strategy-card .card-body {
        padding: 22px;
        flex: 1;
        display: flex;
        flex-direction: column;
    }

    .strategy-card .card-cat {
        font-size: 12px;
        font-weight: 700;
        color: var(--accent-hover);
        text-transform: uppercase;
        letter-spacing: 1.2px;
        margin-bottom: 8px;
    }

    .strategy-card .card-title {
        font-size: 18px;
        font-weight: 700;
        color: var(--primary);
        line-height: 1.4;
        margin-bottom: 10px;
    }

    .strategy-card .card-text {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.6;
        flex: 1;
    }

    .strategy-card .card-meta {
        display: flex;
        align-items: center;
        gap: 14px;
        padding-top: 14px;
        margin-top: 14px;
        border-top: 1px solid var(--border);
        font-size: 13px;
        color: var(--text-muted);
    }

    .strategy-card .card-meta i {
        color: var(--secondary);
        margin-right: 5px;
    }

    /* ===== 数据排行 ===== */
    .rank-section {
        background: var(--bg-dark);
        color: var(--white);
        position: relative;
        overflow: hidden;
        background-image: linear-gradient(135deg, rgba(19, 28, 48, 0.97), rgba(26, 43, 74, 0.92)), url('/assets/images/backpic/back-3.png');
        background-size: cover;
        background-position: center;
    }

    .rank-section .section-title {
        color: var(--white);
    }

    .rank-section .section-subtitle {
        color: rgba(255, 255, 255, 0.7);
    }

    .rank-item {
        display: flex;
        align-items: center;
        background: rgba(255, 255, 255, 0.06);
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 14px;
        padding: 14px 18px;
        margin-bottom: 12px;
        transition: var(--transition);
    }

    .rank-item:hover {
        background: rgba(255, 255, 255, 0.1);
        border-color: rgba(240, 160, 32, 0.4);
        transform: translateX(4px);
    }

    .rank-num {
        font-size: 20px;
        font-weight: 800;
        color: var(--accent);
        width: 48px;
        flex-shrink: 0;
        font-style: italic;
    }

    .rank-name {
        flex: 1;
        font-weight: 600;
        font-size: 15px;
    }

    .rank-stat {
        display: flex;
        align-items: center;
        gap: 16px;
        color: rgba(255, 255, 255, 0.65);
        font-size: 13px;
    }

    .rank-stat .score {
        background: rgba(240, 160, 32, 0.2);
        color: var(--secondary-light);
        padding: 3px 12px;
        border-radius: 20px;
        font-weight: 700;
    }

    /* ===== 流程步骤 ===== */
    .steps-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
    }

    .step-item {
        position: relative;
        background: var(--white);
        border-radius: var(--radius-lg);
        padding: 28px 24px;
        border: 1px solid var(--border);
        box-shadow: var(--shadow);
        text-align: center;
        transition: var(--transition);
    }

    .step-item:hover {
        transform: translateY(-5px);
        box-shadow: var(--shadow-lg);
    }

    .step-num {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 48px;
        height: 48px;
        background: linear-gradient(135deg, var(--primary), var(--primary-light));
        color: #fff;
        border-radius: 50%;
        font-weight: 800;
        font-size: 18px;
        margin: 0 auto 16px;
        box-shadow: 0 4px 14px rgba(26, 43, 74, 0.25);
    }

    .step-item h4 {
        font-size: 16px;
        font-weight: 700;
        margin-bottom: 8px;
        color: var(--primary);
    }

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

    .step-arrow {
        position: absolute;
        top: 50%;
        right: -18px;
        transform: translateY(-50%);
        color: var(--accent);
        font-size: 14px;
        z-index: 2;
        width: 28px;
        height: 28px;
        background: var(--bg);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    /* ===== 特点项 ===== */
    .feature-row {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }

    .feature-item {
        text-align: center;
        padding: 30px 20px;
    }

    .feature-item .feature-icon {
        width: 64px;
        height: 64px;
        background: rgba(26, 43, 74, 0.06);
        border-radius: 18px;
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0 auto 16px;
        font-size: 24px;
        color: var(--primary);
        transition: var(--transition);
    }

    .feature-item:hover .feature-icon {
        background: var(--primary);
        color: #fff;
        transform: scale(1.05) rotate(-3deg);
        box-shadow: 0 6px 20px rgba(26, 43, 74, 0.25);
    }

    .feature-item h4 {
        font-size: 16px;
        font-weight: 700;
        color: var(--primary);
        margin-bottom: 6px;
    }

    .feature-item p {
        font-size: 13px;
        color: var(--text-muted);
        line-height: 1.6;
    }

    /* ===== FAQ ===== */
    .faq-item {
        background: var(--white);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        margin-bottom: 14px;
        overflow: hidden;
        transition: var(--transition);
    }

    .faq-item:hover {
        border-color: rgba(212, 162, 78, 0.4);
        box-shadow: var(--shadow);
    }

    .faq-item summary {
        padding: 20px 24px;
        font-size: 15px;
        font-weight: 600;
        cursor: pointer;
        list-style: none;
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 16px;
        color: var(--primary);
    }

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

    .faq-item summary::after {
        content: "\f078";
        font-family: "Font Awesome 6 Free";
        font-weight: 900;
        transition: var(--transition);
        color: var(--accent);
        font-size: 14px;
        flex-shrink: 0;
    }

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

    .faq-item .faq-content {
        padding: 0 24px 20px;
        color: var(--text-muted);
        font-size: 14px;
        line-height: 1.7;
    }

    /* ===== CTA ===== */
    .cta-section {
        background: linear-gradient(120deg, var(--primary), var(--primary-light)), url('/assets/images/backpic/back-1.png');
        background-blend-mode: overlay;
        background-size: cover;
        background-position: center;
        padding: 70px 0;
        position: relative;
        overflow: hidden;
    }

    .cta-section::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: radial-gradient(circle at 80% 20%, rgba(240, 160, 32, 0.25), transparent 60%);
    }

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

    .cta-section h2 {
        color: #fff;
        font-size: 32px;
        font-weight: 800;
        margin-bottom: 14px;
    }

    .cta-section p {
        color: rgba(255, 255, 255, 0.85);
        font-size: 16px;
        max-width: 620px;
        margin: 0 auto 28px;
    }

    .btn-cta {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        background: var(--accent);
        color: var(--primary);
        font-weight: 700;
        padding: 14px 36px;
        border-radius: 40px;
        font-size: 15px;
        transition: var(--transition);
        box-shadow: 0 8px 30px rgba(240, 160, 32, 0.4);
        border: none;
    }

    .btn-cta:hover {
        background: var(--secondary-light);
        transform: translateY(-3px);
        box-shadow: 0 12px 36px rgba(240, 160, 32, 0.5);
        color: var(--primary);
    }

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

    /* ===== 页脚 ===== */
    .site-footer {
        background: var(--bg-dark);
        color: rgba(255, 255, 255, 0.8);
        padding-top: 60px;
        font-size: 14px;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.6fr 1fr 1.2fr;
        gap: 40px;
        padding-bottom: 36px;
    }

    .footer-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 19px;
        font-weight: 800;
        color: #fff;
        margin-bottom: 14px;
    }

    .footer-logo .brand-icon {
        width: 38px;
        height: 38px;
        background: linear-gradient(135deg, var(--accent), var(--secondary));
        border-radius: 10px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--primary);
        font-size: 15px;
    }

    .footer-about p {
        color: rgba(255, 255, 255, 0.65);
        line-height: 1.7;
        max-width: 360px;
    }

    .footer-title {
        color: #fff;
        font-weight: 700;
        font-size: 15px;
        margin-bottom: 14px;
        letter-spacing: 0.5px;
    }

    .footer-links {
        display: flex;
        flex-direction: column;
        gap: 8px;
    }

    .footer-links a {
        color: rgba(255, 255, 255, 0.65);
        transition: var(--transition);
    }

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

    .footer-contact p {
        margin-bottom: 10px;
        color: rgba(255, 255, 255, 0.65);
    }

    .footer-contact i {
        color: var(--accent);
    }

    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        padding: 20px 0;
        text-align: center;
        color: rgba(255, 255, 255, 0.4);
        font-size: 13px;
    }

    /* ===== 响应式 ===== */
    @media (max-width: 1024px) {
        .section {
            padding: 64px 0;
        }

        .page-banner {
            padding: 70px 0 54px;
        }

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

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

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

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

        .search-box {
            width: 160px;
        }
    }

    @media (max-width: 768px) {
        .section {
            padding: 50px 0;
        }

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

        .section-head {
            flex-direction: column;
            align-items: flex-start;
        }

        .page-banner {
            padding: 54px 0 42px;
        }

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

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

        .navbar-collapse {
            padding: 14px 0;
            border-top: 1px solid var(--border);
            margin-top: 10px;
        }

        .navbar-nav {
            gap: 2px;
            margin-bottom: 12px;
        }

        .navbar-nav .nav-link {
            padding: 10px 14px;
            border-radius: 10px;
        }

        .search-box {
            width: 100%;
            flex: 1;
        }

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

        .step-arrow {
            display: none;
        }

        .feature-row {
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }

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

        .footer-about p {
            max-width: none;
        }

        .rank-section .row {
            row-gap: 12px;
        }

        .strategy-card .card-body {
            padding: 18px;
        }
    }

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

        .site-header .navbar {
            min-height: 64px;
            padding: 10px 0;
        }

        .brand-logo {
            font-size: 15px;
        }

        .brand-logo .brand-icon {
            width: 36px;
            height: 36px;
            font-size: 14px;
        }

        .brand-logo .brand-sub {
            font-size: 9px;
        }

        .section-title {
            font-size: 22px;
        }

        .page-banner {
            padding: 44px 0 36px;
        }

        .page-banner h1 {
            font-size: 24px;
        }

        .page-banner .lead {
            font-size: 14px;
        }

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

        .rank-item {
            flex-wrap: wrap;
            gap: 6px;
        }

        .rank-stat {
            width: 100%;
            padding-left: 48px;
        }

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

        .cta-section p {
            font-size: 14px;
        }

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

        .footer-grid {
            gap: 24px;
        }
    }