/* roulang page: index */
:root {
  --brand-primary: #1a56db;
  --brand-primary-dark: #1344a8;
  --brand-secondary: #0b1f4b;
  --brand-accent: #f5b942;
  --bg-body: #f5f7fb;
  --bg-white: #ffffff;
  --bg-dark: #0b1f4b;
  --text-primary: #0d1b3e;
  --text-body: #4a5568;
  --text-muted: #7a8699;
  --border-light: #e8eef6;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 4px 16px rgba(15,42,90,.06);
  --shadow-md: 0 10px 30px rgba(15,42,90,.10);
  --shadow-lg: 0 20px 50px rgba(15,42,90,.14);
  --font-base: "PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
* { box-sizing: border-box; }
body {
  font-family: var(--font-base);
  background: var(--bg-body);
  color: var(--text-body);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: color .25s; }
img { max-width: 100%; height: auto; }
button, input, select, textarea { font-family: inherit; }

/* ===== Header 杂志频道导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1050;
  background: #fff;
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
}
.header-brand-row {
  background: #ffffff;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-light);
}
.brand-logo {
  font-size: 24px;
  font-weight: 700;
  color: var(--brand-secondary);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  line-height: 1.2;
}
.brand-logo i {
  color: var(--brand-accent);
  font-size: 30px;
}
.header-search {
  display: flex;
  align-items: center;
  background: var(--bg-body);
  border-radius: 50px;
  padding: 4px 4px 4px 16px;
  border: 1px solid var(--border-light);
  max-width: 320px;
  width: 100%;
}
.header-search input {
  border: none;
  background: transparent;
  flex: 1;
  font-size: 14px;
  outline: none;
  padding: 8px 10px;
  color: var(--text-primary);
}
.header-search button {
  background: var(--brand-primary);
  border: none;
  color: #fff;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background .3s;
}
.header-search button:hover { background: var(--brand-primary-dark); }
.header-actions .btn-brand {
  border-radius: 50px;
  padding: 8px 24px;
  font-weight: 600;
}
.header-nav-row {
  background: var(--brand-secondary);
}
.channel-nav {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.channel-nav::-webkit-scrollbar { display: none; }
.channel-nav > li > a {
  display: block;
  padding: 13px 22px;
  color: rgba(255,255,255,.78);
  font-size: 15px;
  font-weight: 500;
  border-bottom: 3px solid transparent;
  white-space: nowrap;
  transition: all .3s;
}
.channel-nav > li.active > a,
.channel-nav > li > a:hover {
  color: #fff;
  border-bottom-color: var(--brand-accent);
}

/* ===== Hero ===== */
.hero-section {
  position: relative;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  padding: 100px 0 110px;
}
.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(11,31,75,.94) 0%, rgba(11,31,75,.72) 58%, rgba(11,31,75,.28) 100%);
}
.hero-section .container { position: relative; z-index: 2; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.25);
  color: var(--brand-accent);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 18px;
  border-radius: 50px;
  letter-spacing: 1px;
  margin-bottom: 24px;
}
.hero-section h1 {
  font-size: 54px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.hero-section .hero-sub {
  color: rgba(255,255,255,.85);
  font-size: 17px;
  max-width: 560px;
  margin-bottom: 34px;
  line-height: 1.8;
}
.hero-buttons .btn {
  padding: 12px 30px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 15px;
  margin-right: 12px;
}
.btn-brand {
  background: var(--brand-primary);
  color: #fff;
  border: none;
  transition: all .3s;
}
.btn-brand:hover {
  background: var(--brand-primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(26,86,219,.3);
}
.btn-outline-light {
  border: 1px solid rgba(255,255,255,.6);
  color: #fff;
  background: transparent;
  transition: all .3s;
}
.btn-outline-light:hover {
  background: rgba(255,255,255,.12);
  color: #fff;
  border-color: #fff;
  transform: translateY(-2px);
}
.hero-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: 0 24px 60px rgba(0,0,0,.22);
  margin-left: auto;
  max-width: 360px;
}
.hero-card .card-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--brand-primary), #3b7bff);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 22px;
  margin-bottom: 14px;
}
.hero-card h5 { color: var(--text-primary); font-weight: 700; margin-bottom: 6px; }
.hero-card .hero-stat { font-size: 32px; font-weight: 800; color: var(--brand-primary); }
.hero-card .hero-stat-label { font-size: 13px; color: var(--text-muted); }
.hero-card .list-divider { border-top: 1px solid var(--border-light); margin: 18px 0; }
.hero-card .small-list .tiny { font-size: 14px; color: var(--text-body); }
.hero-card .small-list .tiny i { color: #22a75d; margin-right: 8px; }

/* ===== Stats ===== */
.stats-section {
  background: var(--bg-dark);
  padding: 52px 0;
  position: relative;
  overflow: hidden;
}
.stats-section::after {
  content: '';
  position: absolute;
  right: -60px;
  top: -60px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(245,185,66,.08);
}
.stat-item {
  text-align: center;
  padding: 10px 0;
}
.stat-item .stat-number {
  font-size: 38px;
  font-weight: 800;
  color: #fff;
  line-height: 1.3;
}
.stat-item .stat-number span { color: var(--brand-accent); font-size: 32px; }
.stat-item .stat-label {
  color: rgba(255,255,255,.6);
  font-size: 14px;
  margin-top: 4px;
  letter-spacing: 1px;
}

/* ===== Services ===== */
.section-block { padding: 80px 0; }
.section-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--brand-primary);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.section-title {
  font-size: 32px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 14px;
  line-height: 1.3;
}
.section-sub {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 640px;
  margin-bottom: 40px;
}
.service-card {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  padding: 34px 28px;
  height: 100%;
  transition: all .35s;
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 4px;
  background: var(--brand-primary);
  opacity: 0;
  transition: opacity .3s;
}
.service-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
  border-color: transparent;
}
.service-card:hover::before { opacity: 1; }
.service-card .s-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: #fff;
  margin-bottom: 20px;
}
.s-icon.s-blue { background: linear-gradient(135deg, #1a56db, #3b7bff); }
.s-icon.s-gold { background: linear-gradient(135deg, #e8a013, #f5c451); }
.s-icon.s-green { background: linear-gradient(135deg, #0f9d68, #2ecc8f); }
.service-card h4 {
  color: var(--text-primary);
  font-weight: 700;
  font-size: 19px;
  margin-bottom: 12px;
}
.service-card p {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.75;
  margin-bottom: 0;
}

/* ===== Advantage ===== */
.advantage-section {
  background: #fff;
  padding: 80px 0;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}
.advantage-img-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.advantage-img-wrap img { width: 100%; display: block; }
.advantage-list-item {
  display: flex;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border-light);
}
.advantage-list-item:last-child { border-bottom: none; }
.advantage-list-item .av-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(26,86,219,.1);
  color: var(--brand-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
  margin-top: 2px;
}
.advantage-list-item h5 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.advantage-list-item p { font-size: 14px; color: var(--text-muted); margin: 0; line-height: 1.6; }

/* ===== Category ===== */
.category-card {
  background: linear-gradient(135deg, #0b1f4b, #12316f);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  position: relative;
  overflow: hidden;
}
.category-card::after {
  content: '';
  position: absolute;
  right: -40px;
  top: -40px;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: rgba(245,185,66,.12);
}
.category-card .cat-img {
  width: 90px;
  height: 90px;
  border-radius: 18px;
  object-fit: cover;
  box-shadow: 0 8px 20px rgba(0,0,0,.2);
}
.category-card .cat-info { flex: 1; min-width: 220px; position: relative; z-index: 1; }
.category-card .cat-info h4 {
  color: #fff;
  font-weight: 700;
  font-size: 22px;
  margin-bottom: 6px;
}
.category-card .cat-info p {
  color: rgba(255,255,255,.7);
  font-size: 14px;
  margin: 0;
  line-height: 1.6;
}
.category-card .btn {
  border-radius: 50px;
  padding: 9px 22px;
  background: var(--brand-accent);
  color: var(--brand-secondary);
  font-weight: 600;
  border: none;
  transition: all .3s;
  z-index: 2;
}
.category-card .btn:hover {
  background: #ffd066;
  transform: translateX(3px);
}

/* ===== News ===== */
.news-section {
  background: #fff;
  padding: 80px 0;
}
.news-card {
  background: var(--bg-body);
  border-radius: var(--radius-md);
  padding: 24px;
  height: 100%;
  border: 1px solid var(--border-light);
  transition: all .3s;
}
.news-card:hover {
  background: #fff;
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.news-card .news-cat {
  display: inline-block;
  background: rgba(26,86,219,.1);
  color: var(--brand-primary);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: 50px;
  margin-bottom: 12px;
}
.news-card .news-date {
  font-size: 12px;
  color: var(--text-muted);
  margin-left: 10px;
}
.news-card h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
  line-height: 1.5;
}
.news-card h4 a:hover { color: var(--brand-primary); }
.news-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0;
}
.news-item {
  display: flex;
  gap: 20px;
  align-items: center;
  background: var(--bg-body);
  border-radius: var(--radius-md);
  padding: 18px 24px;
  margin-bottom: 12px;
  border: 1px solid var(--border-light);
  transition: all .3s;
}
.news-item:hover {
  background: #fff;
  box-shadow: var(--shadow-sm);
  border-color: transparent;
}
.news-item .news-date {
  flex-shrink: 0;
  font-size: 13px;
  color: var(--brand-primary);
  background: rgba(26,86,219,.08);
  padding: 4px 12px;
  border-radius: 50px;
  font-weight: 500;
}
.news-item h5 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 2px;
  line-height: 1.4;
}
.news-item h5 a:hover { color: var(--brand-primary); }
.news-item p { font-size: 13px; color: var(--text-muted); margin: 0; display: flex; align-items: center; gap: 10px; }
.news-item p span { background: rgba(245,185,66,.2); color: #9e6e00; padding: 2px 10px; border-radius: 50px; font-size: 12px; }
.news-empty {
  text-align: center;
  padding: 50px 20px;
  color: var(--text-muted);
  font-size: 15px;
  background: var(--bg-body);
  border-radius: var(--radius-lg);
  border: 1px dashed var(--border-light);
}

/* ===== Process ===== */
.process-section { background: var(--bg-body); padding: 80px 0; }
.process-step {
  position: relative;
  text-align: center;
  padding: 30px 20px;
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  height: 100%;
  transition: all .3s;
}
.process-step:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.process-step .step-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--brand-primary);
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}
.process-step h5 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.process-step p {
  font-size: 14px;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.6;
}

/* ===== FAQ ===== */
.faq-section { background: #fff; padding: 80px 0; border-top: 1px solid var(--border-light); }
.faq-accordion .accordion-item {
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md) !important;
  margin-bottom: 14px;
  overflow: hidden;
  box-shadow: none;
}
.faq-accordion .accordion-button {
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  background: #fff;
  border: none;
  box-shadow: none;
}
.faq-accordion .accordion-button:not(.collapsed) {
  background: rgba(26,86,219,.04);
  color: var(--brand-primary);
}
.faq-accordion .accordion-button:focus { box-shadow: none; border-color: transparent; }
.faq-accordion .accordion-body {
  padding: 0 24px 20px;
  color: var(--text-body);
  font-size: 14.5px;
  line-height: 1.8;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  padding: 90px 0;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(11,31,75,.82);
}
.cta-section .container { position: relative; z-index: 2; }
.cta-section h2 {
  color: #fff;
  font-size: 34px;
  font-weight: 800;
  margin-bottom: 12px;
}
.cta-section p {
  color: rgba(255,255,255,.8);
  font-size: 16px;
  max-width: 620px;
  margin: 0 auto 30px;
}
.cta-section .btn-cta {
  background: var(--brand-accent);
  color: var(--brand-secondary);
  font-weight: 700;
  padding: 13px 38px;
  border-radius: 50px;
  border: none;
  font-size: 16px;
  transition: all .3s;
}
.cta-section .btn-cta:hover {
  background: #ffd066;
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(245,185,66,.35);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,.65);
  padding: 60px 0 20px;
}
.site-footer .footer-logo {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}
.site-footer .footer-logo i { color: var(--brand-accent); }
.site-footer p { font-size: 14px; line-height: 1.7; }
.site-footer h6 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: 1px;
}
.site-footer .footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}
.site-footer .footer-links li { margin-bottom: 8px; }
.site-footer .footer-links a {
  color: rgba(255,255,255,.65);
  font-size: 14px;
  transition: all .3s;
}
.site-footer .footer-links a:hover { color: var(--brand-accent); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  margin-top: 40px;
  padding-top: 20px;
  font-size: 13px;
  color: rgba(255,255,255,.4);
  text-align: center;
}

/* ===== 响应式 ===== */
@media (max-width: 991px) {
  .hero-section { padding: 70px 0; }
  .hero-section h1 { font-size: 38px; }
  .hero-card { margin: 30px auto 0; max-width: 400px; }
  .section-block, .advantage-section, .news-section, .process-section, .faq-section { padding: 60px 0; }
  .section-title { font-size: 26px; }
  .stat-item .stat-number { font-size: 30px; }
}
@media (max-width: 767px) {
  .header-brand-row { padding: 10px 0; }
  .brand-logo { font-size: 19px; }
  .brand-logo i { font-size: 24px; }
  .header-search { max-width: none; margin-top: 10px; }
  .hero-section { padding: 60px 0; }
  .hero-section h1 { font-size: 30px; }
  .hero-section .hero-sub { font-size: 15px; }
  .hero-buttons .btn { display: block; width: 100%; margin: 0 0 12px; }
  .stat-item { padding: 10px 0; }
  .stat-item .stat-number { font-size: 26px; }
  .process-step { margin-bottom: 16px; }
  .cta-section h2 { font-size: 26px; }
}
@media (max-width: 520px) {
  .section-title { font-size: 23px; }
  .section-block, .advantage-section, .news-section, .process-section, .faq-section { padding: 48px 0; }
  .service-card { padding: 24px; }
  .news-item { flex-direction: column; gap: 6px; align-items: flex-start; }
  .category-card { padding: 24px; flex-direction: column; }
  .category-card .btn { width: 100%; }
  .cta-section { padding: 60px 0; }
  .cta-section h2 { font-size: 23px; }
  .hero-card { padding: 24px; }
  .hero-card .hero-stat { font-size: 26px; }
}

/* roulang page: category1 */
:root {
            --brand-primary: #0e7df4;
            --brand-secondary: #05c4a0;
            --brand-accent: #6c63ff;
            --dark-bg: #0b1524;
            --dark-card: #111d30;
            --dark-card-2: #16233a;
            --body-text: #1f2937;
            --muted-text: #6b7280;
            --border-color: #e5e7eb;
            --bg-light: #f4f7fc;
            --bg-white: #ffffff;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 10px rgba(11, 21, 36, 0.06);
            --shadow-md: 0 8px 24px rgba(11, 21, 36, 0.1);
            --shadow-lg: 0 16px 40px rgba(11, 21, 36, 0.15);
            --transition-base: all 0.3s ease;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--body-text);
            background: var(--bg-white);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

        /* ========== Header ========== */
        .site-header {
            background: #ffffff;
            box-shadow: 0 2px 16px rgba(11, 21, 36, 0.08);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .header-brand-row {
            padding: 14px 0;
            border-bottom: 1px solid #eef1f6;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            font-size: 1.55rem;
            font-weight: 800;
            color: var(--dark-bg);
            letter-spacing: 0.5px;
        }

        .brand-logo i {
            color: var(--brand-primary);
            font-size: 1.7rem;
            width: 44px;
            height: 44px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(14, 125, 244, 0.1);
            border-radius: 12px;
        }

        .header-search {
            flex: 0 1 340px;
            position: relative;
        }

        .header-search input {
            width: 100%;
            height: 42px;
            border: 1px solid var(--border-color);
            border-radius: 24px;
            padding: 0 46px 0 18px;
            font-size: 0.875rem;
            outline: none;
            background: #f8fafd;
            transition: var(--transition-base);
        }

        .header-search input:focus {
            border-color: var(--brand-primary);
            background: #ffffff;
            box-shadow: 0 0 0 4px rgba(14, 125, 244, 0.12);
        }

        .header-search button {
            position: absolute;
            right: 4px;
            top: 4px;
            width: 34px;
            height: 34px;
            border: none;
            border-radius: 50%;
            background: var(--brand-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition-base);
        }

        .header-search button:hover {
            background: #0a6bd4;
            transform: scale(1.05);
        }

        .header-actions .btn-brand {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            font-weight: 600;
            padding: 9px 22px;
            border-radius: 24px;
            box-shadow: 0 4px 14px rgba(14, 125, 244, 0.28);
            transition: var(--transition-base);
        }

        .header-actions .btn-brand:hover {
            background: #0a6bd4;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(14, 125, 244, 0.35);
        }

        .header-nav-row {
            background: var(--dark-bg);
        }

        .channel-nav {
            list-style: none;
            display: flex;
            margin: 0;
            padding: 0;
            gap: 6px;
            overflow-x: auto;
            scrollbar-width: none;
        }

        .channel-nav::-webkit-scrollbar {
            display: none;
        }

        .channel-nav li a {
            display: inline-flex;
            align-items: center;
            padding: 13px 20px;
            color: rgba(255, 255, 255, 0.78);
            font-size: 0.925rem;
            font-weight: 500;
            border-radius: 0;
            border-bottom: 2px solid transparent;
            white-space: nowrap;
            transition: var(--transition-base);
        }

        .channel-nav li a:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.06);
        }

        .channel-nav li.active a {
            color: #ffffff;
            border-bottom-color: var(--brand-secondary);
            background: rgba(255, 255, 255, 0.08);
            font-weight: 600;
        }

        /* ========== Category Banner ========== */
        .category-banner {
            position: relative;
            background: linear-gradient(120deg, #0b1524 0%, #132338 55%, #1a3050 100%);
            padding: 90px 0;
            color: #fff;
            overflow: hidden;
        }

        .category-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center/cover no-repeat;
            opacity: 0.35;
            mix-blend-mode: luminosity;
        }

        .category-banner::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(11, 21, 36, 0.92) 0%, rgba(11, 21, 36, 0.55) 100%);
        }

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

        .breadcrumb-bar {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 22px;
        }

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

        .breadcrumb-bar a:hover {
            color: #fff;
        }

        .breadcrumb-bar .divider {
            opacity: 0.5;
        }

        .category-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .category-banner h1 span {
            color: var(--brand-secondary);
        }

        .category-banner .lead {
            max-width: 620px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.05rem;
            margin-bottom: 32px;
        }

        .banner-btns .btn {
            padding: 12px 28px;
            border-radius: 26px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition-base);
        }

        .banner-btns .btn-light {
            background: #ffffff;
            border: none;
            color: var(--dark-bg);
        }

        .banner-btns .btn-light:hover {
            background: var(--brand-secondary);
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(5, 196, 160, 0.35);
        }

        .banner-btns .btn-outline-light {
            border: 1px solid rgba(255, 255, 255, 0.55);
            color: #fff;
        }

        .banner-btns .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            transform: translateY(-2px);
        }

        /* ========== Section base ========== */
        .section {
            padding: 80px 0;
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 1px;
            color: var(--brand-primary);
            background: rgba(14, 125, 244, 0.1);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 14px;
        }

        .section-title {
            font-size: 1.9rem;
            font-weight: 800;
            color: var(--dark-bg);
            margin-bottom: 12px;
        }

        .section-subtitle {
            color: var(--muted-text);
            max-width: 640px;
        }

        /* ========== Intro ========== */
        .category-intro {
            background: var(--bg-white);
        }

        .intro-text h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--dark-bg);
            margin-bottom: 18px;
        }

        .intro-text p {
            color: var(--muted-text);
            margin-bottom: 14px;
        }

        .intro-text .feature-list {
            list-style: none;
            padding: 0;
            margin: 20px 0 0;
        }

        .intro-text .feature-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
            color: var(--body-text);
            font-weight: 500;
        }

        .intro-text .feature-list li i {
            color: var(--brand-secondary);
            font-size: 1.1rem;
            width: 28px;
            height: 28px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(5, 196, 160, 0.12);
            border-radius: 50%;
            flex-shrink: 0;
        }

        .intro-stats {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 20px;
            height: 100%;
        }

        .stat-card {
            background: var(--bg-light);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            text-align: center;
            border: 1px solid transparent;
            transition: var(--transition-base);
        }

        .stat-card:hover {
            border-color: rgba(14, 125, 244, 0.15);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .stat-card .stat-value {
            font-size: 2.1rem;
            font-weight: 800;
            color: var(--brand-primary);
            line-height: 1.2;
        }

        .stat-card .stat-label {
            font-size: 0.875rem;
            color: var(--muted-text);
            margin-top: 6px;
        }

        /* ========== Steps ========== */
        .guide-steps {
            background: var(--bg-light);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .step-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px 26px;
            position: relative;
            box-shadow: var(--shadow-sm);
            border: 1px solid #eef1f6;
            transition: var(--transition-base);
        }

        .step-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-8px);
            border-color: rgba(14, 125, 244, 0.18);
        }

        .step-num {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-accent) 100%);
            color: #fff;
            font-size: 1.2rem;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            box-shadow: 0 6px 16px rgba(14, 125, 244, 0.3);
        }

        .step-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--dark-bg);
            margin-bottom: 10px;
        }

        .step-card p {
            font-size: 0.9rem;
            color: var(--muted-text);
            margin: 0;
        }

        .step-arrow {
            position: absolute;
            right: -20px;
            top: 50%;
            transform: translateY(-50%);
            color: #c0c9d6;
            font-size: 1.1rem;
            z-index: 2;
        }

        .step-card:last-child .step-arrow {
            display: none;
        }

        /* ========== Cards ========== */
        .guide-cards {
            background: #fff;
        }

        .guide-card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            margin-top: 40px;
        }

        .guide-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid #eef1f6;
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .guide-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-8px);
        }

        .guide-card .card-img {
            position: relative;
            height: 210px;
            overflow: hidden;
        }

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

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

        .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(11, 21, 36, 0.75);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 16px;
            backdrop-filter: blur(6px);
        }

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

        .card-body-custom h3 {
            font-size: 1.12rem;
            font-weight: 700;
            color: var(--dark-bg);
            margin-bottom: 8px;
        }

        .card-body-custom p {
            font-size: 0.875rem;
            color: var(--muted-text);
            flex: 1;
            margin-bottom: 16px;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--brand-primary);
        }

        .card-link i {
            font-size: 0.8rem;
            transition: transform 0.3s ease;
        }

        .card-link:hover i {
            transform: translateX(4px);
        }

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

        .faq-wrap {
            max-width: 860px;
            margin: 40px auto 0;
        }

        .faq-wrap .accordion-item {
            border: 1px solid #eef1f6;
            border-radius: var(--radius-md) !important;
            overflow: hidden;
            margin-bottom: 16px;
            box-shadow: var(--shadow-sm);
            background: #fff;
        }

        .faq-wrap .accordion-button {
            font-size: 1rem;
            font-weight: 600;
            color: var(--dark-bg);
            padding: 18px 24px;
            background: #fff;
            box-shadow: none;
            border: none;
        }

        .faq-wrap .accordion-button:not(.collapsed) {
            color: var(--brand-primary);
            background: rgba(14, 125, 244, 0.04);
        }

        .faq-wrap .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(14, 125, 244, 0.12);
            border-radius: var(--radius-md);
        }

        .faq-wrap .accordion-button::after {
            background-size: 1rem;
        }

        .faq-wrap .accordion-body {
            color: var(--muted-text);
            padding: 0 24px 20px;
            font-size: 0.925rem;
            line-height: 1.8;
        }

        .faq-more {
            text-align: center;
            margin-top: 32px;
        }

        .faq-more a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--brand-primary);
            font-weight: 600;
            padding: 10px 24px;
            border-radius: 24px;
            background: rgba(14, 125, 244, 0.08);
        }

        .faq-more a:hover {
            background: var(--brand-primary);
            color: #fff;
        }

        /* ========== CTA ========== */
        .category-cta {
            background: var(--dark-bg);
            position: relative;
            overflow: hidden;
            padding: 80px 0;
            text-align: center;
            color: #fff;
        }

        .category-cta::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center/cover no-repeat;
            opacity: 0.25;
        }

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

        .category-cta h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .category-cta p {
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin: 0 auto 32px;
            font-size: 1rem;
        }

        .category-cta .btn-cta-light {
            background: var(--brand-secondary);
            color: var(--dark-bg);
            border: none;
            font-weight: 700;
            padding: 14px 38px;
            border-radius: 30px;
            box-shadow: 0 8px 24px rgba(5, 196, 160, 0.35);
            transition: var(--transition-base);
        }

        .category-cta .btn-cta-light:hover {
            background: #ffffff;
            transform: translateY(-3px);
            box-shadow: 0 14px 36px rgba(5, 196, 160, 0.45);
        }

        .category-cta .btn-cta-outline {
            border: 1px solid rgba(255, 255, 255, 0.6);
            color: #fff;
            font-weight: 600;
            padding: 14px 32px;
            border-radius: 30px;
            margin-left: 12px;
            transition: var(--transition-base);
        }

        .category-cta .btn-cta-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
        }

        .cta-icons {
            display: flex;
            justify-content: center;
            gap: 32px;
            margin-bottom: 28px;
            font-size: 1.6rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #0b1524;
            color: rgba(255, 255, 255, 0.72);
            padding: 64px 0 0;
            font-size: 0.9rem;
        }

        .footer-logo {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .footer-logo i {
            color: var(--brand-primary);
            font-size: 1.4rem;
        }

        .site-footer p {
            color: rgba(255, 255, 255, 0.6);
        }

        .site-footer h6 {
            color: #fff;
            font-weight: 700;
            margin-bottom: 16px;
            font-size: 0.98rem;
        }

        .site-footer .social-links a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.2);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.7);
            transition: var(--transition-base);
        }

        .site-footer .social-links a:hover {
            background: var(--brand-primary);
            border-color: var(--brand-primary);
            color: #fff;
            transform: translateY(-3px);
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 9px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.58);
            transition: var(--transition-base);
        }

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

        .footer-links li i {
            color: var(--brand-secondary);
            width: 18px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 44px;
            padding: 18px 0;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .guide-card-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .category-banner {
                padding: 70px 0;
            }

            .category-banner h1 {
                font-size: 2.1rem;
            }
        }

        @media (max-width: 768px) {
            .header-brand-row {
                padding: 12px 0;
            }

            .brand-logo {
                font-size: 1.2rem;
            }

            .brand-logo i {
                width: 38px;
                height: 38px;
                font-size: 1.3rem;
            }

            .header-actions .btn-brand {
                padding: 7px 16px;
                font-size: 0.85rem;
            }

            .section {
                padding: 56px 0;
            }

            .category-banner {
                padding: 56px 0;
            }

            .category-banner h1 {
                font-size: 1.7rem;
            }

            .category-banner .lead {
                font-size: 0.95rem;
            }

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

            .guide-card-grid {
                grid-template-columns: 1fr;
            }

            .intro-stats {
                margin-top: 28px;
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }

            .stat-card .stat-value {
                font-size: 1.6rem;
            }

            .step-arrow {
                display: none;
            }

            .category-cta {
                padding: 56px 0;
            }

            .category-cta h2 {
                font-size: 1.6rem;
            }

            .category-cta .btn-cta-outline {
                margin-left: 0;
                margin-top: 12px;
            }

            .faq-wrap .accordion-button {
                padding: 15px 18px;
                font-size: 0.92rem;
            }

            .faq-wrap .accordion-body {
                padding: 0 18px 16px;
                font-size: 0.875rem;
            }
        }

        @media (max-width: 520px) {
            .header-actions .btn-brand span {
                display: none;
            }

            .header-actions .btn-brand i {
                margin: 0 !important;
            }

            .header-actions .btn-brand {
                padding: 9px 14px;
                border-radius: 50%;
            }

            .brand-logo {
                font-size: 1.05rem;
            }

            .brand-logo i {
                width: 34px;
                height: 34px;
                font-size: 1.1rem;
            }

            .category-banner {
                padding: 44px 0;
            }

            .category-banner h1 {
                font-size: 1.45rem;
            }

            .banner-btns .btn {
                display: block;
                width: 100%;
                margin-bottom: 10px;
            }

            .section-title {
                font-size: 1.45rem;
            }

            .stat-card {
                padding: 18px 14px;
            }
        }

/* roulang page: article */
:root {
            --brand: #0b4f8a;
            --brand-light: #1266a8;
            --brand-dark: #07355d;
            --accent: #e8a33c;
            --accent-hover: #d4922e;
            --bg-body: #f3f6fa;
            --surface: #ffffff;
            --surface-2: #f0f4f8;
            --text: #1e2b38;
            --text-muted: #64748b;
            --border: #dfe5ec;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 4px 20px rgba(2, 26, 51, 0.06);
            --shadow-lg: 0 12px 40px rgba(2, 26, 51, 0.12);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            margin: 0;
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", Roboto, sans-serif;
            background: var(--bg-body);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        img { max-width: 100%; height: auto; }
        a { text-decoration: none; color: var(--brand); transition: color var(--transition); }
        a:hover { color: var(--brand-light); }
        .container { max-width: 1220px; padding: 0 24px; }

        .btn {
            border-radius: 50rem;
            padding: 0.65rem 1.5rem;
            font-weight: 600;
            transition: all var(--transition);
            border: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }
        .btn-brand {
            background: var(--brand);
            color: #fff;
            box-shadow: 0 4px 14px rgba(11, 79, 138, 0.25);
        }
        .btn-brand:hover {
            background: var(--brand-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(11, 79, 138, 0.3);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(232, 163, 60, 0.3);
        }
        .btn-accent:hover {
            background: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline-light {
            border: 2px solid rgba(255, 255, 255, 0.65);
            color: #fff;
            background: transparent;
        }
        .btn-outline-light:hover {
            background: #fff;
            color: var(--brand-dark);
            border-color: #fff;
            transform: translateY(-2px);
        }
        .btn:focus-visible {
            box-shadow: 0 0 0 0.25rem rgba(11, 79, 138, 0.2);
            outline: none;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: #fff;
            box-shadow: 0 2px 16px rgba(2, 26, 51, 0.06);
        }
        .header-brand-row { padding: 18px 0; background: #fff; }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--brand-dark);
            line-height: 1;
        }
        .brand-logo i { font-size: 1.6rem; color: var(--accent); }
        .brand-logo span { white-space: nowrap; }
        .brand-logo:hover { color: var(--brand); }

        .header-search {
            display: flex;
            align-items: center;
            background: var(--bg-body);
            border-radius: 50rem;
            overflow: hidden;
            max-width: 360px;
            width: 100%;
            border: 1px solid transparent;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .header-search:focus-within {
            border-color: var(--brand);
            box-shadow: 0 0 0 4px rgba(11, 79, 138, 0.08);
        }
        .header-search input {
            flex: 1;
            background: transparent;
            border: none;
            outline: none;
            padding: 10px 18px;
            font-size: 0.9rem;
            color: var(--text);
        }
        .header-search input::placeholder { color: #9faab8; }
        .header-search button {
            background: transparent;
            border: none;
            padding: 10px 16px;
            color: var(--brand);
            cursor: pointer;
            transition: color var(--transition);
        }
        .header-search button:hover { color: var(--brand-light); }

        .header-actions .btn { padding: 0.55rem 1.25rem; font-size: 0.9rem; }

        .header-nav-row { border-top: 1px solid var(--border); background: #fbfdff; }
        .channel-nav {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 2px;
            padding: 0;
            margin: 0;
            overflow-x: auto;
            scrollbar-width: none;
        }
        .channel-nav::-webkit-scrollbar { display: none; }
        .channel-nav li a {
            display: inline-flex;
            align-items: center;
            padding: 14px 20px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text);
            border-bottom: 3px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .channel-nav li a i { color: var(--brand); font-size: 0.85rem; }
        .channel-nav li a:hover {
            color: var(--brand);
            background: rgba(11, 79, 138, 0.05);
        }
        .channel-nav li.active a {
            color: var(--brand);
            border-bottom-color: var(--brand);
            background: rgba(11, 79, 138, 0.04);
        }
        .channel-nav li a:focus-visible {
            outline: 2px solid var(--brand);
            outline-offset: -2px;
            border-radius: 6px;
        }

        .article-hero {
            position: relative;
            background: linear-gradient(135deg, rgba(7, 53, 93, 0.92), rgba(18, 102, 168, 0.86)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 72px 0 64px;
            color: #fff;
        }
        .article-hero .breadcrumb {
            background: transparent;
            padding: 0;
            margin-bottom: 18px;
            --bs-breadcrumb-divider-color: rgba(255, 255, 255, 0.5);
        }
        .article-hero .breadcrumb a { color: rgba(255, 255, 255, 0.85); }
        .article-hero .breadcrumb a:hover { color: #fff; }
        .article-hero .breadcrumb-item.active { color: rgba(255, 255, 255, 0.6); }
        .article-hero h1 {
            font-size: 2.25rem;
            font-weight: 800;
            margin-bottom: 18px;
            line-height: 1.3;
            max-width: 820px;
            letter-spacing: 0.02em;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.9);
        }
        .article-meta i { margin-right: 6px; color: var(--accent); }

        .article-main { padding: 56px 0; }
        .article-card {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 40px 44px;
            border: 1px solid var(--border);
        }

        .article-content { font-size: 1.05rem; }
        .article-content p {
            margin-bottom: 1.4rem;
            line-height: 1.95;
            color: #35404e;
        }
        .article-content h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin: 2.2rem 0 1rem;
            padding-bottom: 0.6rem;
            border-bottom: 2px solid var(--border);
        }
        .article-content h3 {
            font-size: 1.3rem;
            font-weight: 600;
            margin: 1.8rem 0 0.8rem;
        }
        .article-content h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin: 1.5rem 0 0.6rem;
        }
        .article-content img {
            max-width: 100%;
            border-radius: 12px;
            margin: 1.5rem 0;
            box-shadow: var(--shadow);
        }
        .article-content ul,
        .article-content ol {
            margin-bottom: 1.4rem;
            padding-left: 1.6rem;
        }
        .article-content li { margin-bottom: 0.45rem; line-height: 1.85; }
        .article-content blockquote {
            border-left: 4px solid var(--accent);
            background: #fdf8ef;
            padding: 1rem 1.4rem;
            border-radius: 8px;
            margin: 1.5rem 0;
            color: #5a4a30;
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: 0.95rem;
        }
        .article-content table th,
        .article-content table td {
            padding: 0.75rem 1rem;
            border: 1px solid var(--border);
        }
        .article-content table th { background: var(--surface-2); font-weight: 600; }
        .article-content a { text-decoration: underline; text-underline-offset: 3px; }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            margin-top: 32px;
            padding-top: 22px;
            border-top: 1px solid var(--border);
        }
        .tag {
            display: inline-block;
            background: var(--surface-2);
            color: var(--text-muted);
            padding: 5px 14px;
            border-radius: 50rem;
            font-size: 0.85rem;
            font-weight: 500;
            transition: all var(--transition);
        }
        .tag:hover { background: var(--brand); color: #fff; }

        .not-found { text-align: center; padding: 60px 20px; }
        .not-found-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 96px;
            height: 96px;
            background: var(--surface-2);
            border-radius: 50%;
            margin-bottom: 24px;
            color: var(--brand);
            font-size: 2.4rem;
        }
        .not-found h2 { font-size: 1.75rem; font-weight: 700; margin-bottom: 12px; }
        .not-found p { color: var(--text-muted); margin-bottom: 24px; }

        .sidebar-widget {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            padding: 24px;
            margin-bottom: 24px;
        }
        .widget-title {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 18px;
            padding-bottom: 14px;
            border-bottom: 2px solid var(--surface-2);
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .widget-title i { color: var(--accent); }

        .side-post-list { list-style: none; padding: 0; margin: 0; }
        .side-post-list li { margin-bottom: 14px; }
        .side-post-list li:last-child { margin-bottom: 0; }
        .side-post-list li:first-child a {
            background: rgba(232, 163, 60, 0.06);
            border: 1px solid rgba(232, 163, 60, 0.2);
            border-radius: 12px;
        }
        .side-post-list a {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            padding: 10px;
            border-radius: 10px;
            transition: all var(--transition);
        }
        .side-post-list a:hover {
            background: var(--surface-2);
            transform: translateX(3px);
        }
        .side-post-list img {
            width: 72px;
            height: 52px;
            object-fit: cover;
            border-radius: 8px;
            flex-shrink: 0;
        }
        .side-post-info {
            display: flex;
            flex-direction: column;
            gap: 3px;
            min-width: 0;
        }
        .side-post-title {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text);
            line-height: 1.45;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }
        .side-post-date { font-size: 0.78rem; color: var(--text-muted); }

        .help-card {
            background: linear-gradient(160deg, var(--brand-dark), var(--brand));
            color: #fff;
            border-radius: var(--radius);
            padding: 28px 24px;
            text-align: center;
        }
        .help-card h5 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
        .help-card p { font-size: 0.88rem; opacity: 0.85; margin-bottom: 20px; }
        .help-card .btn {
            width: 100%;
        }

        .related-section {
            background: #fff;
            padding: 64px 0;
            border-top: 1px solid var(--border);
        }
        .section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 36px;
            flex-wrap: wrap;
            gap: 12px;
        }
        .section-header h2 {
            font-size: 1.75rem;
            font-weight: 800;
            margin: 0;
            position: relative;
            padding-left: 16px;
        }
        .section-header h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 5px;
            height: 24px;
            background: var(--accent);
            border-radius: 3px;
        }
        .section-header p { color: var(--text-muted); margin: 0; }

        .related-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
            height: 100%;
            display: block;
            color: var(--text);
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            color: var(--text);
        }
        .related-card-img-wrap {
            overflow: hidden;
            position: relative;
        }
        .related-card-img-wrap::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 40%;
            background: linear-gradient(transparent, rgba(7, 53, 93, 0.3));
            opacity: 0;
            transition: opacity var(--transition);
        }
        .related-card:hover .related-card-img-wrap::after { opacity: 1; }
        .related-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .related-card:hover img { transform: scale(1.04); }
        .related-card-body { padding: 20px; }
        .related-card-title {
            font-size: 1rem;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 10px;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }
        .related-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .related-card-meta .badge {
            background: rgba(11, 79, 138, 0.08);
            color: var(--brand);
            font-weight: 500;
            padding: 3px 10px;
            border-radius: 50rem;
            font-size: 0.75rem;
        }

        .faq-section { padding: 64px 0; }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            margin-bottom: 12px;
            transition: all var(--transition);
            cursor: pointer;
        }
        .faq-item:hover {
            border-color: var(--brand);
            box-shadow: var(--shadow);
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            font-size: 1rem;
            gap: 16px;
        }
        .faq-question i {
            color: var(--brand);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i { transform: rotate(45deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.45s ease;
            color: var(--text-muted);
            line-height: 1.8;
            font-size: 0.95rem;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding-top: 14px;
        }

        .cta-section {
            padding: 64px 0;
            position: relative;
            background: linear-gradient(120deg, rgba(7, 53, 93, 0.94), rgba(18, 102, 168, 0.88)), url('/assets/images/backpic/back-3.png') center/cover fixed no-repeat;
            color: #fff;
        }
        .cta-inner {
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-inner p {
            font-size: 1.05rem;
            opacity: 0.9;
            margin-bottom: 28px;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .site-footer {
            background: var(--brand-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 0;
            font-size: 0.9rem;
        }
        .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-size: 1.35rem;
            font-weight: 700;
        }
        .footer-logo i { color: var(--accent); }
        .footer-logo:hover { color: #fff; }
        .site-footer h6 {
            color: #fff;
            font-weight: 600;
            margin-bottom: 18px;
            font-size: 1rem;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li { margin-bottom: 10px; }
        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            transition: all var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-links i { width: 20px; text-align: center; color: var(--accent); }
        .site-footer .fab {
            width: 36px;
            height: 36px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.12);
            border-radius: 50%;
            transition: all var(--transition);
            color: rgba(255, 255, 255, 0.85);
        }
        .site-footer .fab:hover {
            background: var(--accent);
            color: var(--brand-dark);
            transform: translateY(-3px);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 40px;
            padding: 20px 0;
            text-align: center;
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.85rem;
        }

        .back-to-top {
            position: fixed;
            right: 28px;
            bottom: 28px;
            z-index: 999;
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: var(--brand);
            color: #fff;
            border: none;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            box-shadow: var(--shadow-lg);
            opacity: 0;
            transform: translateY(20px);
            pointer-events: none;
            transition: all var(--transition);
            cursor: pointer;
        }
        .back-to-top.show {
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }
        .back-to-top:hover { background: var(--brand-dark); }
        .back-to-top:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .reading-progress {
            position: fixed;
            top: 0;
            left: 0;
            height: 3px;
            width: 0;
            background: linear-gradient(90deg, var(--accent), #ffc96b);
            z-index: 10000;
            border-radius: 0 3px 3px 0;
        }

        @media (max-width: 992px) {
            .article-card { padding: 28px 24px; }
            .article-hero h1 { font-size: 1.8rem; }
            .site-header { position: relative; }
        }

        @media (max-width: 768px) {
            .header-brand-row { padding: 14px 0; }
            .brand-logo { font-size: 1.2rem; }
            .brand-logo i { font-size: 1.3rem; }
            .article-hero { padding: 48px 0 40px; }
            .article-hero h1 { font-size: 1.5rem; }
            .article-main { padding: 36px 0; }
            .related-section, .faq-section, .cta-section { padding: 40px 0; }
            .section-header h2 { font-size: 1.4rem; }
            .cta-inner h2 { font-size: 1.5rem; }
            .channel-nav li a { padding: 12px 16px; font-size: 0.9rem; }
            .back-to-top { right: 16px; bottom: 16px; width: 40px; height: 40px; }
        }

        @media (max-width: 576px) {
            .container { padding: 0 16px; }
            .article-card { padding: 20px 16px; }
            .article-content { font-size: 0.98rem; }
            .article-content p { line-height: 1.85; }
            .header-actions .btn { padding: 0.45rem 0.9rem; font-size: 0.82rem; }
            .header-actions .btn i { margin-right: 4px !important; }
            .brand-logo { font-size: 1.05rem; }
            .brand-logo i { font-size: 1.15rem; }
            .article-meta { gap: 10px; font-size: 0.82rem; }
            .article-tags { gap: 8px; }
            .cta-actions .btn { width: 100%; }
            .footer-links li { margin-bottom: 8px; }
            .site-footer { padding-top: 40px; }
        }