/* roulang page: index */
:root {
  --primary: #e63946;
  --primary-dark: #b91c2e;
  --primary-light: #ff6b76;
  --dark: #0b1424;
  --dark-2: #101d34;
  --dark-3: #1a2a45;
  --light: #f2f5f9;
  --white: #ffffff;
  --text: #1e293b;
  --text-weak: #5b6b82;
  --text-on-dark: #d8e0ec;
  --border: #e1e7ef;
  --border-dark: #22314d;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(11,20,36,.08);
  --shadow-lg: 0 14px 42px rgba(11,20,36,.14);
  --shadow-red: 0 6px 24px rgba(230,57,70,.28);
  --transition: all .3s ease;
  --spacing-section: 90px;
  --container: 1200px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  background: var(--light);
  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; }
ul, ol { list-style: none; }
button, input { font-family: inherit; outline: none; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: var(--spacing-section) 0; }
.section-alt { background: var(--white); }
.section-dark { background: var(--dark); color: var(--text-on-dark); }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 52px; }
.section-flag {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 700; letter-spacing: 2px;
  color: var(--primary); text-transform: uppercase;
  margin-bottom: 10px;
}
.section-flag::before {
  content: ''; width: 22px; height: 2px; background: var(--primary); border-radius: 2px;
}
.section-title { font-size: 34px; font-weight: 800; color: var(--dark); line-height: 1.25; }
.section-alt .section-title { color: var(--dark); }
.section-dark .section-title { color: #fff; }
.section-sub { font-size: 16px; color: var(--text-weak); margin-top: 14px; }
.section-dark .section-sub { color: #93a5bc; }
.section-head.light .section-title { color: #fff; }
.section-head.light .section-sub { color: #93a5bc; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 28px; border-radius: 10px; font-size: 15px; font-weight: 600;
  border: 2px solid transparent; cursor: pointer; transition: var(--transition);
  line-height: 1.4; white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); box-shadow: var(--shadow-red); }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 10px 30px rgba(230,57,70,.36); }
.btn-outline-light { background: transparent; color: #fff; border-color: rgba(255,255,255,.6); }
.btn-outline-light:hover { background: rgba(255,255,255,.12); border-color: #fff; transform: translateY(-2px); }
.btn-ghost { background: rgba(255,255,255,.06); color: #fff; border-color: rgba(255,255,255,.24); }
.btn-ghost:hover { background: rgba(255,255,255,.14); border-color: #fff; transform: translateY(-2px); }
.btn-lg { padding: 15px 38px; font-size: 16px; border-radius: 12px; }

.badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 12px; border-radius: 20px; font-size: 12px; font-weight: 600;
}
.badge-red { background: rgba(230,57,70,.12); color: var(--primary); }
.badge-light { background: rgba(255,255,255,.2); color: #fff; backdrop-filter: blur(4px); }
.badge-outline { background: transparent; border: 1px solid var(--border); color: var(--text-weak); }

.header-top {
  background: var(--dark);
  border-bottom: 1px solid var(--border-dark);
  position: relative;
}
.header-top-inner {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 54px;
}
.brand-logo {
  display: flex; align-items: center; gap: 12px;
  font-size: 20px; font-weight: 800; color: #fff;
  letter-spacing: .5px;
}
.brand-logo .brand-mark {
  width: 34px; height: 34px; border-radius: 9px;
  background: linear-gradient(135deg, var(--primary), #ff7a45);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; color: #fff; box-shadow: 0 4px 14px rgba(230,57,70,.4);
}
.header-contact {
  display: flex; align-items: center; gap: 8px;
  color: #b8c3d4; font-size: 14px;
}
.header-contact i { color: var(--primary-light); }
.header-contact .hotline { font-weight: 700; color: #fff; font-size: 15px; }
.channel-nav-wrap {
  background: var(--dark);
  position: sticky; top: 0; z-index: 999;
}
.channel-nav-wrap::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -1px;
  height: 1px; background: linear-gradient(90deg, var(--primary), transparent 40%);
}
.channel-nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 54px;
}
.channel-nav {
  display: flex; gap: 6px; align-items: center;
}
.channel-nav a {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 18px; border-radius: 8px;
  color: #b8c3d4; font-size: 15px; font-weight: 500;
  transition: var(--transition); position: relative;
}
.channel-nav a i { font-size: 14px; }
.channel-nav a:hover { color: #fff; background: rgba(255,255,255,.08); }
.channel-nav a.active {
  color: #fff; background: rgba(230,57,70,.18); font-weight: 600;
}
.channel-nav a.active::after {
  content: ''; position: absolute; left: 16px; right: 16px; bottom: -2px;
  height: 2px; background: var(--primary); border-radius: 2px;
}
.nav-cta {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--primary); color: #fff;
  padding: 8px 22px; border-radius: 8px;
  font-size: 14px; font-weight: 600;
  transition: var(--transition); box-shadow: var(--shadow-red);
}
.nav-cta:hover { background: var(--primary-dark); transform: translateY(-1px); }
.menu-toggle {
  display: none; align-items: center; justify-content: center;
  width: 42px; height: 42px; background: rgba(255,255,255,.08);
  border: none; border-radius: 8px; color: #fff; font-size: 18px;
  cursor: pointer; transition: var(--transition);
}
.menu-toggle:hover { background: rgba(255,255,255,.16); }

.hero {
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  position: relative;
  min-height: 590px;
  display: flex; align-items: center;
  color: #fff;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(10,16,30,.92) 0%, rgba(10,16,30,.76) 55%, rgba(10,16,30,.42) 100%);
}
.hero::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--primary), transparent 70%);
}
.hero-content { position: relative; z-index: 2; padding: 90px 0; max-width: 780px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 10px;
  background: rgba(230,57,70,.16); border: 1px solid rgba(230,57,70,.4);
  padding: 6px 18px; border-radius: 30px;
  font-size: 13px; font-weight: 600; letter-spacing: 1px;
  color: #ffb4ba; margin-bottom: 26px;
}
.pulse-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--primary); position: relative;
}
.pulse-dot::after {
  content: ''; position: absolute; inset: -4px; border-radius: 50%;
  border: 2px solid var(--primary); opacity: .6;
  animation: pulse 1.8s ease-out infinite;
}
@keyframes pulse {
  0% { transform: scale(.6); opacity: .8; }
  100% { transform: scale(1.8); opacity: 0; }
}
.hero h1 {
  font-size: 54px; font-weight: 900; line-height: 1.18;
  letter-spacing: 2px; margin-bottom: 20px;
}
.hero h1 span { color: var(--primary-light); }
.hero-desc {
  font-size: 17px; color: #c0cadb; line-height: 1.8;
  max-width: 590px; margin-bottom: 34px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 52px; }
.system-status-bar {
  display: inline-flex; align-items: center; flex-wrap: wrap; gap: 14px;
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12);
  border-radius: 12px; padding: 12px 22px; font-size: 13px;
  color: #b8c3d4; margin-bottom: 44px;
}
.status-dot {
  width: 8px; height: 8px; border-radius: 50%; background: #22c55e;
  box-shadow: 0 0 8px #22c55e;
}
.status-sep { width: 1px; height: 14px; background: rgba(255,255,255,.2); }
.status-item { display: flex; align-items: center; gap: 6px; }
.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  border-top: 1px solid rgba(255,255,255,.14); padding-top: 36px;
}
.stat-box { padding-right: 20px; }
.stat-box + .stat-box { border-left: 1px solid rgba(255,255,255,.14); padding-left: 20px; }
.stat-value {
  font-size: 32px; font-weight: 800; color: #fff; line-height: 1.2;
  font-variant-numeric: tabular-nums;
}
.stat-value i { color: var(--primary-light); font-size: 22px; margin-left: 4px; }
.stat-label { font-size: 13px; color: #93a5bc; margin-top: 4px; letter-spacing: 1px; }

.feature-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px;
}
.feature-card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 36px 28px 30px;
  transition: var(--transition); position: relative; overflow: hidden;
}
.feature-card::before {
  content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  transform: scaleX(0); transform-origin: left; transition: transform .4s ease;
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.feature-card:hover::before { transform: scaleX(1); }
.feature-icon {
  width: 56px; height: 56px; border-radius: 14px;
  background: rgba(230,57,70,.1); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; margin-bottom: 20px; transition: var(--transition);
}
.feature-card:hover .feature-icon { background: var(--primary); color: #fff; box-shadow: var(--shadow-red); }
.feature-card h3 { font-size: 19px; font-weight: 700; color: var(--dark); margin-bottom: 10px; }
.feature-card p { font-size: 14px; color: var(--text-weak); line-height: 1.75; }
.feature-tag {
  display: inline-block; margin-top: 16px;
  font-size: 12px; color: var(--primary); background: rgba(230,57,70,.08);
  padding: 3px 12px; border-radius: 20px; font-weight: 600;
}

.guide-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
}
.guide-card {
  background: var(--white); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow);
  transition: var(--transition); border: 1px solid var(--border);
}
.guide-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.guide-img {
  height: 210px; background-size: cover; background-position: center;
  position: relative;
}
.guide-img .guide-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 20%, rgba(10,16,30,.55) 100%);
  display: flex; align-items: flex-start; justify-content: flex-start;
  padding: 18px;
}
.guide-body { padding: 26px 26px 30px; }
.guide-body h3 { font-size: 19px; font-weight: 700; color: var(--dark); margin-bottom: 8px; }
.guide-body p { font-size: 14px; color: var(--text-weak); line-height: 1.7; margin-bottom: 18px; }
.guide-link {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 600; color: var(--primary);
  transition: gap .3s ease;
}
.guide-link:hover { gap: 14px; }

.news-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
}
.news-card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px;
  transition: var(--transition); display: flex; flex-direction: column;
}
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.news-card-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px;
}
.news-date { font-size: 13px; color: var(--text-weak); display: flex; align-items: center; gap: 6px; }
.news-title { font-size: 18px; font-weight: 700; line-height: 1.5; color: var(--dark); margin-bottom: 12px; }
.news-title a { transition: color .3s; }
.news-title a:hover { color: var(--primary); }
.news-desc {
  font-size: 14px; color: var(--text-weak); line-height: 1.7;
  flex: 1; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical;
  overflow: hidden; margin-bottom: 18px;
}
.news-more {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 600; color: var(--primary);
}
.news-more i { transition: transform .3s; }
.news-more:hover i { transform: translateX(6px); }
.empty-box {
  grid-column: 1 / -1; text-align: center; padding: 70px 30px;
  background: var(--white); border-radius: var(--radius); border: 1px dashed var(--border);
  color: var(--text-weak); font-size: 16px;
}
.empty-box i { font-size: 40px; color: var(--border); display: block; margin-bottom: 16px; }

.process-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px;
  position: relative;
}
.process-step {
  text-align: center; padding: 38px 28px; position: relative;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius);
  transition: var(--transition);
}
.process-step:hover { background: rgba(255,255,255,.08); border-color: var(--primary); transform: translateY(-4px); }
.step-number {
  font-size: 54px; font-weight: 900; color: rgba(255,255,255,.06);
  position: absolute; top: 10px; right: 18px; line-height: 1;
  font-variant-numeric: tabular-nums;
}
.step-icon {
  width: 68px; height: 68px; border-radius: 50%;
  background: rgba(230,57,70,.18); border: 2px solid var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; color: var(--primary-light);
  margin: 0 auto 22px; transition: var(--transition);
}
.process-step:hover .step-icon { background: var(--primary); color: #fff; box-shadow: var(--shadow-red); }
.process-step h3 { font-size: 20px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.process-step p { font-size: 14px; color: #93a5bc; line-height: 1.75; max-width: 260px; margin: 0 auto; }
.process-arrow {
  position: absolute; top: 50%; right: -30px; transform: translateY(-50%);
  color: rgba(255,255,255,.16); font-size: 20px; z-index: 1;
}

.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item {
  background: var(--white); border: 1px solid var(--border);
  border-radius: 12px; margin-bottom: 14px; overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: rgba(230,57,70,.35); box-shadow: var(--shadow); }
.faq-item summary {
  padding: 22px 28px; font-size: 16px; font-weight: 600;
  cursor: pointer; display: flex; justify-content: space-between;
  align-items: center; gap: 16px; list-style: none;
  color: var(--dark);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary i {
  color: var(--text-weak); transition: transform .3s ease; font-size: 14px;
  flex-shrink: 0;
}
.faq-item[open] summary i { transform: rotate(180deg); color: var(--primary); }
.faq-item[open] { border-color: rgba(230,57,70,.3); }
.faq-item .faq-answer { padding: 0 28px 24px; color: var(--text-weak); font-size: 15px; line-height: 1.8; }
.faq-item .faq-answer strong { color: var(--text); }
.faq-more {
  text-align: center; margin-top: 34px;
}
.faq-more a {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--primary); font-weight: 600; font-size: 15px;
}
.faq-more a:hover { gap: 14px; }

.cta-panel {
  background: var(--dark); position: relative; overflow: hidden;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover; background-position: center;
}
.cta-panel::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(11,20,36,.94), rgba(11,20,36,.8));
}
.cta-inner {
  position: relative; z-index: 1;
  display: flex; align-items: center; justify-content: space-between; gap: 40px;
  padding: 74px 0; flex-wrap: wrap;
}
.cta-content h2 { font-size: 34px; font-weight: 800; color: #fff; margin-bottom: 10px; }
.cta-content p { color: #93a5bc; font-size: 16px; }
.cta-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.site-footer {
  background: #080f1b; color: #8b9ab0;
  padding: 70px 0 0; border-top: 3px solid var(--primary);
}
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 48px;
  padding-bottom: 46px;
}
.footer-logo {
  font-size: 22px; font-weight: 800; color: #fff;
  display: flex; align-items: center; gap: 12px; margin-bottom: 16px;
}
.footer-logo .brand-mark {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), #ff7a45);
  display: flex; align-items: center; justify-content: center;
  font-size: 17px; color: #fff;
}
.footer-brand p { font-size: 14px; line-height: 1.75; max-width: 330px; }
.footer-links h4, .footer-service h4 {
  font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 20px;
  position: relative; padding-bottom: 12px;
}
.footer-links h4::after, .footer-service h4::after {
  content: ''; position: absolute; left: 0; bottom: 0;
  width: 28px; height: 2px; background: var(--primary); border-radius: 2px;
}
.footer-links li, .footer-service li { margin-bottom: 12px; }
.footer-links a {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; color: #8b9ab0; transition: var(--transition);
}
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-links a i { font-size: 10px; color: var(--primary); }
.footer-service li {
  display: flex; align-items: center; gap: 10px; font-size: 14px;
}
.footer-service li i { color: var(--primary-light); width: 18px; text-align: center; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 22px 0; text-align: center; font-size: 13px; color: #5e6d82;
}

@media (max-width: 1024px) {
  :root { --spacing-section: 70px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .guide-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .hero h1 { font-size: 44px; }
  .hero-stats { gap: 12px; }
  .stat-value { font-size: 26px; }
  .process-grid { gap: 24px; }
  .process-arrow { display: none; }
}
@media (max-width: 768px) {
  :root { --spacing-section: 56px; }
  .container { padding: 0 18px; }
  .menu-toggle { display: flex; }
  .channel-nav {
    display: none; width: 100%; flex-direction: column;
    gap: 4px; padding: 10px 0 14px;
  }
  .channel-nav.open { display: flex; }
  .channel-nav a { width: 100%; padding: 13px 16px; }
  .channel-nav a.active::after { display: none; }
  .nav-cta { display: none; }
  .header-contact { display: none; }
  .hero { min-height: auto; }
  .hero-content { padding: 64px 0; }
  .hero h1 { font-size: 34px; }
  .hero-actions .btn { width: 100%; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .stat-box:nth-child(2n+1) { border-left: none; padding-left: 0; }
  .system-status-bar { flex-wrap: wrap; gap: 8px; }
  .section-title { font-size: 26px; }
  .feature-grid { grid-template-columns: 1fr; }
  .guide-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
  .cta-inner { flex-direction: column; text-align: center; padding: 54px 0; }
  .cta-actions { justify-content: center; width: 100%; }
  .cta-actions .btn { flex: 1; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-actions .btn { width: calc(50% - 8px); }
  .hero-actions .btn-lg { padding: 13px 20px; font-size: 15px; }
  .faq-item summary { padding: 18px 20px; font-size: 15px; }
  .faq-item .faq-answer { padding: 0 20px 20px; }
}
@media (max-width: 520px) {
  .hero-actions .btn { width: 100%; }
  .hero-stats { grid-template-columns: 1fr 1fr; gap: 18px; }
  .stat-box { padding-right: 12px; }
  .stat-box + .stat-box { padding-left: 12px; }
  .stat-value { font-size: 22px; }
  .section-title { font-size: 22px; }
  .hero h1 { font-size: 30px; }
  .hero-desc { font-size: 15px; }
  .feature-card { padding: 26px 20px; }
  .news-card { padding: 20px; }
  .guide-body { padding: 20px; }
}

/* roulang page: category1 */
/* ===== Design Tokens ===== */
        :root {
            --primary: #0b1f3f;
            --primary-light: #16335f;
            --accent: #e63946;
            --accent-dark: #c1272d;
            --bg-body: #f4f6fa;
            --bg-dark: #0f1522;
            --bg-card: #ffffff;
            --text-main: #1c2434;
            --text-muted: #64748b;
            --border-color: #e2e8f0;
            --radius: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 10px rgba(15, 23, 42, .06);
            --shadow-md: 0 8px 24px rgba(15, 23, 42, .1);
            --shadow-lg: 0 18px 40px rgba(15, 23, 42, .12);
            --space: 16px;
            --space-lg: 48px;
            --container: 1200px;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease, background .2s ease, box-shadow .2s ease, transform .2s ease;
        }

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

        input {
            font-family: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            width: min(92%, var(--container));
            margin-inline: auto;
        }

        /* ===== Button ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            transition: all .25s ease;
            border: 2px solid transparent;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(230, 57, 70, .35);
        }

        .btn-primary:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(230, 57, 70, .4);
        }

        .btn-outline {
            border-color: rgba(255, 255, 255, .6);
            color: #fff;
            background: transparent;
        }

        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, .12);
            transform: translateY(-2px);
        }

        .btn-light {
            background: #fff;
            color: var(--primary);
            box-shadow: var(--shadow-sm);
        }

        .btn-light:hover {
            background: var(--bg-body);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
            border-width: 1px;
        }

        /* ===== Header ===== */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-block: 16px;
        }

        .brand-link {
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .brand-mark {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--primary);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            box-shadow: var(--shadow-sm);
        }

        .brand-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: .5px;
        }

        .header-tools {
            display: flex;
            gap: 10px;
        }

        .channel-nav {
            display: flex;
            gap: 4px;
            padding: 6px 0 12px;
            overflow-x: auto;
            scrollbar-width: thin;
            border-top: 1px solid var(--border-color);
            background: #fff;
        }

        .channel-nav::-webkit-scrollbar {
            height: 4px;
        }

        .channel-nav::-webkit-scrollbar-thumb {
            background: var(--border-color);
            border-radius: 4px;
        }

        .channel-nav a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 20px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            border-radius: 999px;
            white-space: nowrap;
            transition: all .25s ease;
        }

        .channel-nav a:hover {
            color: var(--primary);
            background: #f0f4f9;
        }

        .channel-nav a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(11, 31, 63, .25);
        }

        .channel-nav a i {
            font-size: 14px;
        }

        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            min-height: 500px;
            display: flex;
            align-items: center;
            color: #fff;
            overflow: hidden;
            background: var(--bg-dark);
            padding-block: 64px;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url(/assets/images/backpic/back-2.png);
            background-size: cover;
            background-position: center;
            opacity: .45;
            z-index: 0;
        }

        .hero-bg::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(11, 31, 63, .88) 0%, rgba(15, 21, 34, .55) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 1;
            max-width: 760px;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .25);
            border-radius: 999px;
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 500;
            color: #f1f5f9;
            margin-bottom: 22px;
            backdrop-filter: blur(4px);
        }

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

        .hero-content h1 {
            font-size: 46px;
            line-height: 1.2;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -1px;
        }

        .hero-content p {
            font-size: 17px;
            color: #cbd5e1;
            margin-bottom: 28px;
            max-width: 640px;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .hero-stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            margin-top: 40px;
            padding-top: 26px;
            border-top: 1px solid rgba(255, 255, 255, .15);
        }

        .hero-stat-item .num {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
        }

        .hero-stat-item .label {
            font-size: 13px;
            color: #94a3b8;
            margin-top: 2px;
        }

        /* ===== Section Common ===== */
        .section {
            padding-block: 72px;
        }

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 48px;
        }

        .section-head .tag {
            display: inline-block;
            background: rgba(230, 57, 70, .08);
            color: var(--accent);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 1px;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 14px;
        }

        .section-head h2 {
            font-size: 34px;
            line-height: 1.3;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .section-head p {
            color: var(--text-muted);
            font-size: 16px;
        }

        /* ===== Steps ===== */
        .steps-section {
            background: #fff;
            border-block: 1px solid var(--border-color);
        }

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

        .step-card {
            background: var(--bg-body);
            border-radius: var(--radius);
            padding: 28px 24px;
            position: relative;
            border: 1px solid transparent;
            transition: all .3s ease;
        }

        .step-card:hover {
            border-color: var(--border-color);
            background: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .step-index {
            position: absolute;
            top: 20px;
            right: 22px;
            font-size: 34px;
            font-weight: 800;
            color: rgba(11, 31, 63, .08);
            line-height: 1;
        }

        .step-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 18px;
            box-shadow: 0 6px 16px rgba(11, 31, 63, .3);
        }

        .step-icon.accent {
            background: var(--accent);
            box-shadow: 0 6px 16px rgba(230, 57, 70, .3);
        }

        .step-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .step-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== Service Grid ===== */
        .service-section {
            background: var(--bg-body);
        }

        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .service-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: all .3s ease;
            display: flex;
            flex-direction: column;
        }

        .service-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
            border-color: transparent;
        }

        .service-cover {
            height: 180px;
            overflow: hidden;
            position: relative;
            background: var(--primary);
        }

        .service-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .45s ease;
            opacity: .85;
        }

        .service-card:hover .service-cover img {
            transform: scale(1.05);
        }

        .service-cover::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 31, 63, .5), transparent);
        }

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

        .service-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }

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

        .service-more {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            margin-top: 16px;
        }

        .service-more i {
            transition: transform .2s ease;
        }

        .service-more:hover i {
            transform: translateX(4px);
        }

        /* ===== Security Tips ===== */
        .security-section {
            background: var(--bg-dark);
            color: #fff;
            padding-block: 72px;
            position: relative;
            overflow: hidden;
        }

        .security-section::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -40px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(230, 57, 70, .3), transparent 70%);
            border-radius: 50%;
        }

        .security-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .security-info h2 {
            font-size: 30px;
            font-weight: 800;
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .security-info p {
            color: #94a3b8;
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .security-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .security-list li {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            background: rgba(255, 255, 255, .05);
            border-radius: var(--radius-sm);
            padding: 14px 16px;
            font-size: 14px;
            color: #e2e8f0;
            line-height: 1.6;
            border: 1px solid rgba(255, 255, 255, .08);
            transition: background .3s ease;
        }

        .security-list li:hover {
            background: rgba(255, 255, 255, .09);
        }

        .security-list i {
            color: var(--accent);
            font-size: 16px;
            margin-top: 3px;
        }

        /* ===== Stats Panel ===== */
        .stats-section {
            background: #fff;
            border-block: 1px solid var(--border-color);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            text-align: center;
        }

        .stat-item {
            padding: 32px 20px;
            border-radius: var(--radius);
            background: var(--bg-body);
            border: 1px solid var(--border-color);
            transition: box-shadow .3s ease;
        }

        .stat-item:hover {
            box-shadow: var(--shadow-md);
        }

        .stat-number {
            font-size: 42px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
        }

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

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

        .faq-item {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: box-shadow .3s ease, border-color .3s ease;
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: #d0d7de;
        }

        .faq-item summary {
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            gap: 14px;
        }

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

        .faq-item summary::before {
            content: "\f059";
            font-family: "Font Awesome 6 Free";
            font-weight: 400;
            color: var(--accent);
            font-size: 18px;
        }

        .faq-item summary::after {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            margin-left: auto;
            transition: transform .3s ease;
            color: var(--text-muted);
        }

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

        .faq-item .faq-answer {
            padding: 0 24px 22px 56px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark);
            padding-block: 72px;
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section .cta-bg {
            position: absolute;
            inset: 0;
            background-image: url(/assets/images/backpic/back-3.png);
            background-size: cover;
            background-position: center;
            opacity: .25;
        }

        .cta-content {
            position: relative;
            z-index: 1;
        }

        .cta-content h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .cta-content p {
            font-size: 16px;
            color: #94a3b8;
            max-width: 560px;
            margin: 0 auto 28px;
        }

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

        /* ===== Footer ===== */
        .site-footer {
            background: #0d1524;
            color: #94a3b8;
            padding-top: 64px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            max-width: 420px;
        }

        .footer-links h4,
        .footer-service h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .footer-links ul,
        .footer-service ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            transition: color .2s ease;
        }

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

        .footer-links i,
        .footer-service i {
            font-size: 12px;
            color: var(--accent);
        }

        .footer-service li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding-block: 20px;
            text-align: center;
            font-size: 13px;
            color: #64748b;
        }

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

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

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

        @media (max-width: 768px) {
            .header-tools {
                display: none;
            }

            .hero-content h1 {
                font-size: 34px;
            }

            .hero-content p {
                font-size: 15px;
            }

            .page-hero {
                min-height: 420px;
                padding-block: 48px;
            }

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

            .stats-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .stat-item {
                padding: 24px;
            }

            .cta-content h2 {
                font-size: 28px;
            }
        }

        @media (max-width: 520px) {
            .section {
                padding-block: 52px;
            }

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

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

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

            .hero-content h1 {
                font-size: 28px;
            }

            .hero-actions {
                flex-direction: column;
            }

            .btn {
                width: 100%;
            }

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

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

/* roulang page: article */
:root {
  --primary: #e63946;
  --primary-dark: #b02a37;
  --accent: #f4a261;
  --bg-deep: #0b0f14;
  --bg-card: #111820;
  --bg-card-2: #1a2430;
  --text-main: #e6edf3;
  --text-weak: #8b95a5;
  --text-muted: #5f6d7e;
  --border: #1e2a36;
  --border-light: #2a3a4a;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 12px 40px rgba(0, 0, 0, .45);
  --shadow-sm: 0 4px 16px rgba(0, 0, 0, .3);
  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --container: 1240px;
  --transition: all .3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--bg-deep);
  color: var(--text-main);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  color: #ffbe85;
}

ul,
ol {
  list-style: none;
}

button,
input,
select,
textarea {
  font-family: inherit;
  font-size: 100%;
  border: none;
  outline: none;
  background: none;
  color: inherit;
}

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

/* ===== Header ===== */
.site-header {
  background: rgba(11, 15, 20, .96);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: .5px;
  color: #fff;
}

.brand-mark {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  box-shadow: 0 4px 14px rgba(230, 57, 70, .4);
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 16px;
}

.tool-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-weak);
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--bg-card);
}

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

.channel-nav-wrap {
  border-top: 1px solid var(--border);
  background: rgba(17, 24, 32, .6);
}

.channel-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 24px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

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

.channel-nav a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 20px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-weak);
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: var(--transition);
}

.channel-nav a i {
  font-size: 14px;
  opacity: .7;
}

.channel-nav a:hover {
  color: var(--text-main);
  border-bottom-color: var(--primary);
}

.channel-nav a.active {
  color: #fff;
  border-bottom-color: var(--primary);
  background: rgba(230, 57, 70, .08);
}

.channel-nav a.active i {
  color: var(--primary);
  opacity: 1;
}

/* ===== Article Hero ===== */
.article-hero {
  position: relative;
  padding: 80px 0 90px;
  background-size: cover;
  background-position: center;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11, 15, 20, .96) 0%, rgba(11, 15, 20, .82) 50%, rgba(230, 57, 70, .28) 100%);
}

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

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-weak);
  margin-bottom: 24px;
  flex-wrap: wrap;
}

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

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

.breadcrumb i {
  font-size: 11px;
  margin-top: 2px;
}

.breadcrumb .current {
  color: var(--accent);
  font-weight: 600;
}

.article-hero h1 {
  font-size: 42px;
  line-height: 1.25;
  font-weight: 800;
  color: #fff;
  max-width: 900px;
  letter-spacing: -1px;
  margin-bottom: 20px;
  text-shadow: 0 4px 20px rgba(0, 0, 0, .3);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--text-weak);
}

.article-meta span {
  display: flex;
  align-items: center;
  gap: 7px;
}

.article-meta i {
  color: var(--accent);
  font-size: 14px;
}

/* ===== Article Main ===== */
.main-section {
  padding: 60px 0 80px;
  background: linear-gradient(180deg, var(--bg-deep) 0%, #0d1218 100%);
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 40px;
  align-items: start;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 44px 48px;
  box-shadow: var(--shadow-sm);
}

.article-body {
  font-size: 16px;
  color: #c8d2de;
  line-height: 1.85;
}

.article-body h2 {
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  margin: 36px 0 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.article-body h2::before {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 60px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.article-body h3 {
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  margin: 28px 0 12px;
}

.article-body h4 {
  font-size: 18px;
  font-weight: 600;
  color: #fff;
  margin: 20px 0 10px;
}

.article-body p {
  margin-bottom: 18px;
  line-height: 1.85;
}

.article-body ul,
.article-body ol {
  margin: 0 0 20px 20px;
  line-height: 1.85;
}

.article-body ul li,
.article-body ol li {
  padding-left: 8px;
  margin-bottom: 10px;
  position: relative;
}

.article-body ul li::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
  margin-right: 12px;
  vertical-align: middle;
  box-shadow: 0 0 8px rgba(230, 57, 70, .5);
}

.article-body ol {
  counter-reset: list;
}

.article-body ol li {
  counter-increment: list;
  padding-left: 8px;
}

.article-body ol li::before {
  content: counter(list);
  display: inline-block;
  width: 22px;
  height: 22px;
  background: rgba(230, 57, 70, .15);
  border-radius: 50%;
  text-align: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--primary);
  margin-right: 12px;
  line-height: 22px;
}

.article-body strong {
  color: #fff;
  font-weight: 700;
}

.article-body a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-body blockquote {
  border-left: 3px solid var(--primary);
  background: rgba(230, 57, 70, .08);
  padding: 16px 20px;
  margin: 24px 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: #aebbd0;
  font-style: italic;
}

.article-body img {
  border-radius: var(--radius-sm);
  margin: 28px 0;
  box-shadow: var(--shadow-sm);
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.article-body table th,
.article-body table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  font-size: 14px;
}

.article-body table th {
  background: var(--bg-card-2);
  font-weight: 700;
  color: #fff;
}

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

/* Not Found */
.not-found {
  text-align: center;
  padding: 60px 30px;
}

.not-found i {
  font-size: 60px;
  color: var(--primary);
  margin-bottom: 22px;
  display: inline-block;
  animation: pulse 2s infinite;
}

.not-found h2 {
  font-size: 28px;
  color: #fff;
  margin-bottom: 14px;
  border-bottom: none;
}

.not-found h2::before {
  display: none;
}

.not-found p {
  color: var(--text-weak);
  margin-bottom: 28px;
  font-size: 15px;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.06); opacity: .85; }
}

/* Article Footer */
.article-footer {
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-list .tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: rgba(230, 57, 70, .1);
  border: 1px solid rgba(230, 57, 70, .25);
  border-radius: 20px;
  font-size: 13px;
  color: #ff8a94;
  font-weight: 500;
}

.share-box {
  display: flex;
  align-items: center;
  gap: 8px;
}

.share-box span {
  font-size: 14px;
  color: var(--text-weak);
  margin-right: 4px;
}

.share-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--bg-card-2);
  border: 1px solid var(--border);
  color: var(--text-weak);
  font-size: 14px;
  transition: var(--transition);
}

.share-btn:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  transform: translateY(-3px);
}

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

.side-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
}

.side-card:hover {
  border-color: var(--border-light);
  box-shadow: var(--shadow-sm);
}

.side-card-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

.side-card-head .bar {
  width: 4px;
  height: 20px;
  background: var(--primary);
  border-radius: 2px;
}

.side-card-head h3 {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
}

.side-nav li {
  margin-bottom: 4px;
}

.side-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-weak);
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
}

.side-nav a i {
  width: 20px;
  color: var(--accent);
  font-size: 14px;
  text-align: center;
}

.side-nav a:hover {
  background: rgba(230, 57, 70, .08);
  color: #fff;
  padding-left: 18px;
}

.side-service .service-points {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.side-service .point {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.side-service .point i {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  background: rgba(230, 57, 70, .12);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--primary);
}

.side-service .point .text {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.5;
}

.side-service .point .text strong {
  display: block;
  color: #fff;
  margin-bottom: 4px;
}

.side-contact {
  background: linear-gradient(135deg, rgba(230, 57, 70, .15) 0%, transparent 60%), var(--bg-card);
  border: 1px solid rgba(230, 57, 70, .2);
}

.side-contact .contact-line {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

.side-contact .contact-line:last-child {
  border-bottom: none;
}

.side-contact .contact-line i {
  color: var(--primary);
  width: 20px;
  font-size: 15px;
}

.side-contact .contact-line span {
  color: var(--text-weak);
}

/* ===== Related ===== */
.related-section {
  padding: 80px 0;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
}

.section-head {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 36px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 14px;
  background: rgba(230, 57, 70, .1);
  border: 1px solid rgba(230, 57, 70, .3);
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--primary);
}

.section-head h2 {
  font-size: 30px;
  font-weight: 800;
  color: #fff;
  letter-spacing: -1px;
}

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

.service-card {
  display: block;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(230, 57, 70, .4);
  box-shadow: var(--shadow);
}

.service-card-img {
  position: relative;
  height: 180px;
  overflow: hidden;
}

.service-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

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

.service-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--bg-deep) 0%, transparent 50%);
}

.service-card-body {
  padding: 22px 24px 26px;
  position: relative;
}

.service-card-body .card-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  margin-bottom: 14px;
  box-shadow: 0 4px 12px rgba(230, 57, 70, .3);
}

.service-card-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.service-card-body p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.6;
  margin-bottom: 16px;
}

.service-card-body .card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}

.service-card-body .card-link i {
  font-size: 12px;
  transition: transform .3s ease;
}

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

/* ===== CTA ===== */
.cta-panel {
  padding: 70px 0;
  background: linear-gradient(135deg, rgba(230, 57, 70, .2) 0%, transparent 40%), url('/assets/images/backpic/back-3.png') center/cover;
  position: relative;
}

.cta-panel::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(11, 15, 20, .82);
}

.cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
  padding: 40px 24px;
}

.cta-content h2 {
  font-size: 34px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: -1px;
}

.cta-content p {
  font-size: 16px;
  color: var(--text-weak);
  margin-bottom: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 700;
  transition: var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 20px rgba(230, 57, 70, .35);
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(230, 57, 70, .45);
}

.btn-light {
  background: #fff;
  color: var(--bg-deep);
}

.btn-light:hover {
  background: var(--accent);
  color: var(--bg-deep);
  transform: translateY(-2px);
}

.btn-outline {
  border-color: var(--border-light);
  color: var(--text-main);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(230, 57, 70, .08);
}

/* ===== FAQ ===== */
.faq-section {
  padding: 80px 0;
  background: var(--bg-deep);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 28px;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(230, 57, 70, .35);
  box-shadow: var(--shadow-sm);
}

.faq-item .faq-q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  line-height: 1.5;
}

.faq-item .faq-q .faq-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  background: rgba(230, 57, 70, .15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: var(--primary);
  font-weight: 800;
}

.faq-item .faq-a {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
  padding-left: 36px;
}

/* ===== Footer ===== */
.site-footer {
  background: #080c11;
  border-top: 1px solid var(--border);
  padding-top: 60px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
  max-width: 340px;
}

.footer-links h4,
.footer-service h4 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}

.footer-links h4::after,
.footer-service h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 28px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.footer-links ul li,
.footer-service ul li {
  margin-bottom: 12px;
  font-size: 14px;
  color: var(--text-weak);
}

.footer-links ul li a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-weak);
  transition: var(--transition);
}

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

.footer-links ul li a i {
  font-size: 10px;
  color: var(--primary);
}

.footer-service ul li {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-service ul li i {
  color: var(--primary);
  font-size: 14px;
  width: 20px;
}

.footer-bottom {
  padding: 24px 0 28px;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .article-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .article-sidebar {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  .side-card {
    padding: 22px;
  }
}

@media (max-width: 768px) {
  .header-top {
    padding: 14px 16px;
  }
  .brand {
    font-size: 18px;
  }
  .brand-mark {
    width: 34px;
    height: 34px;
    font-size: 15px;
  }
  .header-tools .tool-item {
    display: none;
  }
  .channel-nav {
    padding: 0 16px;
  }
  .channel-nav a {
    padding: 12px 16px;
    font-size: 14px;
  }
  .article-hero {
    padding: 56px 0 64px;
  }
  .article-hero h1 {
    font-size: 30px;
  }
  .article-meta {
    gap: 14px;
    font-size: 13px;
  }
  .article-card {
    padding: 28px 24px;
  }
  .article-body {
    font-size: 15px;
  }
  .article-body h2 {
    font-size: 24px;
  }
  .article-body h3 {
    font-size: 20px;
  }
  .related-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .faq-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .article-sidebar {
    grid-template-columns: 1fr;
  }
  .cta-content h2 {
    font-size: 26px;
  }
  .section-head h2 {
    font-size: 24px;
  }
  .article-footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .brand {
    font-size: 16px;
  }
  .brand-mark {
    width: 30px;
    height: 30px;
    font-size: 13px;
  }
  .channel-nav a {
    padding: 10px 12px;
    font-size: 13px;
  }
  .article-hero h1 {
    font-size: 24px;
  }
  .article-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .article-card {
    padding: 20px 16px;
    border-radius: 10px;
  }
  .article-body h2 {
    font-size: 22px;
  }
  .article-body h3 {
    font-size: 18px;
  }
  .article-body blockquote {
    padding: 12px 14px;
  }
  .article-body table {
    display: block;
    overflow-x: auto;
  }
  .related-grid {
    gap: 16px;
  }
  .service-card-img {
    height: 150px;
  }
  .cta-panel {
    padding: 48px 0;
  }
  .cta-content {
    padding: 24px 16px;
  }
  .cta-content h2 {
    font-size: 22px;
  }
  .faq-item {
    padding: 20px;
  }
  .footer-grid {
    gap: 24px;
  }
  .channel-nav a i {
    display: none;
  }
  .side-card {
    padding: 18px;
  }
  .btn {
    padding: 12px 24px;
    font-size: 14px;
  }
}