/* roulang page: index */
:root {
  --bg-primary: #0B1324;
  --bg-secondary: #0F1D33;
  --bg-deep: #080E1A;
  --primary: #00B4D8;
  --primary-dark: #0090B0;
  --accent: #7B61FF;
  --status: #2DD4BF;
  --warning: #F5B544;
  --danger: #E5484D;
  --text-main: #E8F0FF;
  --text-sub: #8CA3C0;
  --border-light: rgba(0, 180, 216, 0.15);
  --glass-bg: rgba(255, 255, 255, 0.04);
  --glass-bg-hover: rgba(255, 255, 255, 0.07);
  --glass-border: rgba(255, 255, 255, 0.08);
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.4);
  --glow-primary: 0 0 20px rgba(0, 180, 216, 0.35);
  --glow-primary-hover: 0 0 28px rgba(0, 180, 216, 0.55);
  --container-w: 1280px;
  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
  --font-mono: "DIN Alternate", "Roboto Mono", "Menlo", monospace;
  --space-section: 72px;
  --space-section-mobile: 44px;
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input { font-family: inherit; }
ul, ol { list-style: none; }
.container { max-width: var(--container-w); margin: 0 auto; padding: 0 24px; }
::selection { background: rgba(0, 180, 216, 0.3); color: #fff; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 4px; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 19, 36, 0.78);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border-bottom: 1px solid var(--border-light);
  transition: background 0.3s ease;
}
.site-header.scrolled { background: rgba(11, 19, 36, 0.92); }
.header-top { border-bottom: 1px solid rgba(255, 255, 255, 0.04); }
.header-top-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 40px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-logo {
  width: 28px; height: 28px; border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 800; color: #fff;
  letter-spacing: -0.02em;
  box-shadow: 0 0 12px rgba(0, 180, 216, 0.4);
}
.brand-name { font-weight: 700; font-size: 17px; letter-spacing: -0.02em; color: var(--text-main); }
.header-actions { display: flex; align-items: center; gap: 8px; }
.search-toggle {
  width: 30px; height: 30px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-sub); transition: background 0.25s, color 0.25s;
}
.search-toggle:hover { background: rgba(255, 255, 255, 0.06); color: var(--text-main); }
.search-toggle svg { width: 16px; height: 16px; }
.header-search {
  position: absolute; top: 42px; right: 24px; left: auto;
  width: 320px; max-width: calc(100vw - 48px);
  background: var(--bg-secondary); border: 1px solid var(--border-light);
  border-radius: var(--radius-md); padding: 10px 14px;
  display: none; box-shadow: var(--shadow-glass);
  z-index: 50;
}
.header-search.open { display: block; }
.header-search input {
  width: 100%; background: transparent; border: none; color: var(--text-main);
  font-size: 14px; outline: none;
}
.header-search input::placeholder { color: var(--text-sub); }
.btn-mini {
  display: inline-flex; align-items: center; gap: 6px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff; font-size: 13px; font-weight: 600;
  padding: 5px 14px; border-radius: 999px;
  transition: box-shadow 0.25s, transform 0.2s;
}
.btn-mini:hover { box-shadow: var(--glow-primary); transform: translateY(-1px); }
.header-nav { position: relative; }
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 48px; gap: 20px;
}
.nav-list { display: flex; align-items: center; gap: 4px; }
.nav-link {
  padding: 6px 14px; border-radius: 999px;
  font-size: 14px; font-weight: 500; color: var(--text-sub);
  transition: color 0.25s, background 0.25s;
  position: relative;
}
.nav-link:hover { color: var(--text-main); background: rgba(255, 255, 255, 0.04); }
.nav-link.active { color: var(--primary); background: rgba(0, 180, 216, 0.1); font-weight: 600; }
.nav-link.active::after {
  content: ""; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%);
  width: 16px; height: 2px; border-radius: 2px; background: var(--primary);
}
.nav-trends { display: flex; align-items: center; gap: 14px; }
.trend-label { font-size: 12px; color: var(--text-sub); opacity: 0.75; }
.nav-trends a { font-size: 12px; color: var(--text-sub); display: inline-flex; align-items: center; gap: 5px; }
.nav-trends a::before { content: "⚡"; font-size: 11px; color: var(--warning); }
.nav-trends a:hover { color: var(--primary); }
.menu-toggle { display: none; width: 36px; height: 36px; border-radius: 8px; align-items: center; justify-content: center; }
.menu-toggle:hover { background: rgba(255, 255, 255, 0.06); }
.menu-toggle svg { width: 20px; height: 20px; stroke: var(--text-main); }
.mobile-drawer {
  display: none;
  position: absolute; top: 100%; left: 0; right: 0;
  background: var(--bg-secondary); border-bottom: 1px solid var(--border-light);
  padding: 16px 24px 24px; box-shadow: var(--shadow-card);
}
.mobile-drawer.open { display: block; }
.mobile-drawer a {
  display: block; padding: 10px 0; font-size: 15px; color: var(--text-main);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}
.mobile-drawer a:last-child { border-bottom: none; }
.mobile-drawer a.active { color: var(--primary); }

/* ===== Buttons ===== */
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; padding: 12px 28px;
  background: linear-gradient(135deg, var(--primary), #0077B6);
  color: #fff; font-size: 15px; font-weight: 600;
  border-radius: 10px; border: none;
  transition: transform 0.2s, box-shadow 0.3s, filter 0.3s;
}
.btn-primary:hover { box-shadow: var(--glow-primary-hover); filter: brightness(1.08); transform: translateY(-1px); }
.btn-primary:active { transform: scale(0.97); }
.btn-glow { box-shadow: var(--glow-primary); }
.btn-link {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--text-sub); font-size: 14px;
  transition: color 0.25s, gap 0.25s;
}
.btn-link:hover { color: var(--primary); gap: 10px; }

/* ===== Hero ===== */
.hero { position: relative; min-height: 520px; display: flex; align-items: center; overflow: hidden; }
.hero-bg {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  z-index: 0;
}
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(8, 15, 30, 0.72), rgba(8, 15, 30, 0.55) 50%, rgba(8, 15, 30, 0.25));
  z-index: 1;
}
.hero-inner {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1.2fr 0.8fr;
  gap: 48px; align-items: center;
  padding-top: 48px; padding-bottom: 56px;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  padding: 5px 16px; font-size: 13px; font-weight: 600;
  color: var(--text-main); margin-bottom: 20px;
}
.hero-badge .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--status);
  box-shadow: 0 0 8px var(--status);
  animation: pulse 1.4s ease infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}
.hero h1 {
  font-size: 42px; font-weight: 800; line-height: 1.25;
  letter-spacing: -0.02em; color: #fff;
  margin-bottom: 16px;
}
.hero-subtitle {
  font-size: 16px; color: rgba(232, 240, 255, 0.85);
  max-width: 540px; margin-bottom: 28px; line-height: 1.7;
}
.hero-points {
  display: flex; flex-wrap: wrap; gap: 12px;
  max-width: 540px;
}
.point-card {
  display: flex; align-items: center; gap: 8px;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  padding: 8px 14px;
  font-size: 13px; color: var(--text-main);
  transition: border-color 0.25s, background 0.25s;
}
.point-card:hover { border-color: rgba(0, 180, 216, 0.4); background: var(--glass-bg-hover); }
.point-icon { color: var(--primary); font-size: 14px; flex-shrink: 0; }
.hero-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow-glass);
  transform: translateX(18px);
  position: relative;
  max-width: 360px;
  justify-self: end;
}
.hero-card::before {
  content: ""; position: absolute; top: -1px; left: -1px; right: -1px;
  height: 1px; border-radius: 999px;
  background: linear-gradient(90deg, transparent, rgba(0, 180, 216, 0.5), transparent);
}
.countdown-label {
  display: inline-block; font-size: 12px; font-weight: 600;
  color: var(--text-sub); letter-spacing: 0.1em;
  margin-bottom: 14px;
  padding: 4px 12px; border-radius: 999px;
  background: rgba(0, 180, 216, 0.1);
  color: var(--primary);
}
.countdown {
  display: flex; align-items: center; justify-content: center;
  gap: 8px; margin-bottom: 24px;
}
.cd-num {
  font-family: var(--font-mono);
  font-size: 40px; font-weight: 700; color: #fff;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  padding: 6px 12px; min-width: 72px; text-align: center;
  box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.3);
}
.cd-sep { font-family: var(--font-mono); font-size: 28px; color: var(--primary); font-weight: 300; }
.hero-card .btn-primary { width: 100%; margin-bottom: 16px; }
.hero-card .btn-link { width: 100%; justify-content: center; }

/* ===== Section Base ===== */
.section { padding: var(--space-section) 0; }
.section-alt { background: var(--bg-secondary); }
.section-head {
  text-align: center; margin-bottom: 44px;
}
.section-head h2 {
  font-size: 30px; font-weight: 800; letter-spacing: -0.02em;
  color: #fff; margin-bottom: 8px;
}
.section-head p { color: var(--text-sub); font-size: 15px; }
.section-head.light h2 { color: #fff; }

/* ===== News List ===== */
.news-section { background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%); }
.news-list { display: flex; flex-direction: column; gap: 20px; max-width: 920px; margin: 0 auto; }
.news-item {
  display: flex; gap: 20px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 16px;
  transition: transform 0.3s, border-color 0.3s, background 0.3s;
}
.news-item:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 180, 216, 0.35);
  background: var(--glass-bg-hover);
}
.news-thumb {
  flex-shrink: 0; width: 180px; height: 120px;
  border-radius: var(--radius-sm); overflow: hidden;
}
.news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
.news-item:hover .news-thumb img { transform: scale(1.04); }
.news-content { flex: 1; display: flex; flex-direction: column; justify-content: center; }
.news-content h3 { font-size: 17px; font-weight: 700; margin-bottom: 6px; line-height: 1.4; }
.news-content h3 a:hover { color: var(--primary); }
.news-content p {
  font-size: 14px; color: var(--text-sub); line-height: 1.6;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  margin-bottom: 10px;
}
.news-meta { display: flex; align-items: center; gap: 12px; }
.meta-time { font-size: 12px; color: var(--text-sub); font-family: var(--font-mono); }
.meta-cat {
  font-size: 12px; color: var(--primary);
  background: rgba(0, 180, 216, 0.1);
  padding: 2px 10px; border-radius: 999px;
  font-weight: 500;
}
.empty-state {
  text-align: center; padding: 48px 20px;
  color: var(--text-sub);
}
.empty-icon {
  width: 64px; height: 64px; margin: 0 auto 16px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  display: flex; align-items: center; justify-content: center;
  font-size: 28px; color: var(--text-sub);
}

/* ===== Featured ===== */
.featured-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px; max-width: 1080px; margin: 0 auto;
}
.feature-card {
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg); overflow: hidden;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.feature-card:hover { transform: translateY(-6px); border-color: rgba(0, 180, 216, 0.4); box-shadow: var(--shadow-card); }
.card-cover { position: relative; overflow: hidden; aspect-ratio: 16/10; }
.card-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.feature-card:hover .card-cover img { transform: scale(1.04); }
.live-tag {
  position: absolute; top: 12px; left: 12px;
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(0, 0, 0, 0.65); backdrop-filter: blur(8px);
  border-radius: 999px; padding: 4px 12px;
  font-size: 12px; font-weight: 600; color: #fff;
}
.live-tag .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--status); animation: pulse 1.2s ease infinite; }
.live-tag.tag-upcoming .dot { background: var(--warning); animation: none; }
.live-tag.tag-end .dot { background: var(--text-sub); animation: none; }
.card-body { padding: 16px 18px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.card-body h3 { font-size: 16px; font-weight: 700; color: #fff; line-height: 1.4; }
.heat { font-size: 13px; color: var(--text-sub); display: inline-flex; align-items: center; gap: 4px; white-space: nowrap; }

/* ===== Channel ===== */
.channel-section { background: var(--bg-secondary); }
.channel-scroll {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px;
}
.channel-item {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 10px; padding: 24px 14px;
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  transition: transform 0.3s, border-color 0.3s, background 0.3s;
}
.channel-item:hover { transform: translateY(-4px); border-color: rgba(0, 180, 216, 0.4); background: var(--glass-bg-hover); }
.channel-icon { font-size: 24px; }
.channel-name { font-size: 14px; font-weight: 700; color: var(--text-main); }
.channel-count { font-size: 12px; color: var(--text-sub); }

/* ===== FAQ ===== */
.faq-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  border-radius: var(--radius-md); overflow: hidden;
  transition: border-color 0.3s, background 0.3s;
}
.faq-item.active { border-color: rgba(0, 180, 216, 0.45); background: rgba(0, 180, 216, 0.04); }
.faq-question {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  padding: 18px 20px; text-align: left;
  font-size: 15px; font-weight: 600; color: var(--text-main);
  transition: background 0.25s;
}
.faq-question:hover { background: rgba(255, 255, 255, 0.02); }
.faq-toggle {
  width: 26px; height: 26px; border-radius: 50%;
  background: rgba(0, 180, 216, 0.1); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 300;
  transition: transform 0.3s, background 0.3s;
  flex-shrink: 0;
}
.faq-item.active .faq-toggle { transform: rotate(45deg); background: rgba(0, 180, 216, 0.25); }
.faq-answer { display: none; padding: 0 20px 18px; font-size: 14px; color: var(--text-sub); line-height: 1.75; }
.faq-item.active .faq-answer { display: block; }
.faq-answer p { margin-bottom: 8px; }
.faq-answer p:last-child { margin-bottom: 0; }

/* ===== CTA ===== */
.cta-section { position: relative; overflow: hidden; }
.cta-section::before {
  content: ""; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 600px; height: 600px; border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 180, 216, 0.08), transparent 65%);
  pointer-events: none;
}
.cta-card {
  position: relative; z-index: 1;
  max-width: 720px; margin: 0 auto;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 44px 40px;
  text-align: center;
  box-shadow: var(--shadow-glass);
}
.cta-card h2 { font-size: 26px; font-weight: 800; margin-bottom: 10px; color: #fff; }
.cta-card p { color: var(--text-sub); font-size: 15px; margin-bottom: 28px; }
.subscribe-form { display: flex; gap: 12px; max-width: 460px; margin: 0 auto; }
.subscribe-form input {
  flex: 1; padding: 12px 16px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-light);
  border-radius: 10px;
  color: var(--text-main); font-size: 14px;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.subscribe-form input::placeholder { color: var(--text-sub); }
.subscribe-form input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.15); }
.subscribe-form input.error { border-color: var(--danger); box-shadow: 0 0 0 3px rgba(229, 72, 77, 0.12); }
.subscribe-form .btn-primary { white-space: nowrap; }
.btn-primary.subscribed { background: linear-gradient(135deg, var(--status), #1BB89E); box-shadow: 0 0 20px rgba(45, 212, 191, 0.35); }
.form-error {
  color: var(--danger); font-size: 13px; margin-top: 10px; display: none;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border-light);
  padding: 56px 0 28px;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px;
  margin-bottom: 36px;
}
.footer-brand .footer-logo {
  font-size: 22px; font-weight: 800; color: #fff;
  display: flex; align-items: center; gap: 10px; margin-bottom: 12px;
}
.footer-brand .footer-logo span {
  width: 30px; height: 30px; border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; color: #fff; font-weight: 800;
}
.footer-brand p { color: var(--text-sub); font-size: 14px; max-width: 320px; line-height: 1.7; }
.footer-col h4 {
  font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 16px;
}
.footer-col a {
  display: block; color: var(--text-sub); font-size: 14px;
  padding: 4px 0; transition: color 0.25s;
}
.footer-col a:hover { color: var(--primary); }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 20px; text-align: center;
  color: var(--text-sub); font-size: 13px;
}
.footer-bottom span { opacity: 0.8; }

/* ===== Responsive ===== */
@media (max-width: 1199px) {
  .hero-inner { grid-template-columns: 1fr 0.9fr; gap: 32px; }
  .hero-card { transform: none; }
  .featured-grid { grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .channel-scroll { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 1023px) {
  :root { --space-section: 56px; }
  .hero { min-height: auto; }
  .hero-inner { grid-template-columns: 1fr; padding-top: 40px; padding-bottom: 40px; }
  .hero h1 { font-size: 34px; }
  .hero-card { max-width: 100%; justify-self: stretch; }
  .hero-points { gap: 8px; }
  .featured-grid { grid-template-columns: repeat(2, 1fr); }
  .channel-scroll { grid-template-columns: repeat(3, 1fr); }
  .news-item { flex-direction: column; }
  .news-thumb { width: 100%; height: 180px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 767px) {
  .header-nav .nav-list, .nav-trends { display: none; }
  .menu-toggle { display: flex; }
  .header-top-inner { height: 52px; }
  .header-nav { height: 0; }
  .mobile-drawer { display: none; }
  .mobile-drawer.open { display: block; }
  .hero h1 { font-size: 30px; }
  .hero-subtitle { font-size: 15px; }
  .hero-points { flex-direction: column; align-items: stretch; }
  .point-card { width: 100%; }
  .hero-card { padding: 24px 18px; }
  .cd-num { font-size: 30px; min-width: 58px; padding: 4px 8px; }
  .cd-sep { font-size: 22px; }
  .featured-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
  .channel-scroll { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .subscribe-form { flex-direction: column; }
  .subscribe-form .btn-primary { width: 100%; }
  .cta-card { padding: 32px 20px; }
  .news-thumb { height: 160px; }
}
@media (max-width: 519px) {
  :root { --space-section: 44px; }
  .section-head h2 { font-size: 23px; }
  .hero h1 { font-size: 27px; }
  .hero-subtitle { font-size: 14px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .channel-scroll { grid-template-columns: repeat(2, 1fr); }
  .news-item { padding: 12px; }
  .news-thumb { height: 140px; }
  .btn-primary { width: 100%; }
}

/* roulang page: article */
:root {
            --bg-primary: #0B1324;
            --bg-secondary: #0F1D33;
            --bg-deep: #080E1A;
            --accent: #00B4D8;
            --accent-dark: #0090B0;
            --neon-purple: #7B61FF;
            --status-online: #2DD4BF;
            --warning-gold: #F5B544;
            --text-primary: #E8F0FF;
            --text-secondary: #8CA3C0;
            --border-light: rgba(0, 180, 216, 0.15);
            --glass-bg: rgba(255, 255, 255, 0.04);
            --glass-border: rgba(255, 255, 255, 0.08);
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
            --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-glow: 0 0 20px rgba(0, 180, 216, 0.35);
            --shadow-glow-hover: 0 0 28px rgba(0, 180, 216, 0.55);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --transition-base: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button {
            cursor: pointer;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 吸顶导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(11, 19, 36, 0.85);
            backdrop-filter: blur(20px) saturate(160%);
            -webkit-backdrop-filter: blur(20px) saturate(160%);
            border-bottom: 1px solid var(--border-light);
        }

        .header-top {
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .header-top-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 40px;
            position: relative;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .brand-logo {
            width: 28px;
            height: 28px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--accent), var(--neon-purple));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.02em;
        }

        .brand-name {
            font-size: 16px;
            font-weight: 600;
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

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

        .search-toggle {
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            transition: var(--transition-base);
        }

        .search-toggle:hover {
            color: var(--accent);
            background: rgba(0, 180, 216, 0.1);
        }

        .search-toggle svg {
            width: 18px;
            height: 18px;
        }

        .btn-mini {
            padding: 5px 14px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: #fff;
            font-size: 13px;
            font-weight: 500;
            transition: var(--transition-base);
            box-shadow: 0 0 12px rgba(0, 180, 216, 0.2);
        }

        .btn-mini:hover {
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }

        .header-search {
            position: absolute;
            right: 0;
            top: 100%;
            width: 0;
            opacity: 0;
            overflow: hidden;
            transition: var(--transition-base);
            z-index: 10;
        }

        .header-search.open {
            width: 260px;
            opacity: 1;
        }

        .header-search input {
            width: 100%;
            padding: 8px 16px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            font-size: 13px;
            color: var(--text-primary);
            transition: var(--transition-base);
        }

        .header-search input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.15);
        }

        .header-search input::placeholder {
            color: var(--text-secondary);
        }

        .header-nav {
            position: relative;
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 48px;
            gap: 24px;
        }

        .nav-list {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 28px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            flex: 1;
        }

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

        .nav-link {
            padding: 6px 2px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            white-space: nowrap;
            transition: var(--transition-base);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: var(--transition-base);
        }

        .nav-link:hover {
            color: var(--text-primary);
        }

        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }

        .nav-link.active {
            color: var(--accent);
        }

        .nav-trends {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .trend-label {
            font-size: 12px;
            color: var(--warning-gold);
            font-weight: 600;
            white-space: nowrap;
        }

        .nav-trends a {
            font-size: 13px;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: var(--transition-base);
        }

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

        .menu-toggle {
            display: none;
            width: 36px;
            height: 36px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            transition: var(--transition-base);
        }

        .menu-toggle:hover {
            color: var(--accent);
            background: rgba(0, 180, 216, 0.08);
        }

        .menu-toggle svg {
            width: 20px;
            height: 20px;
        }

        .mobile-drawer {
            display: none;
            background: var(--bg-secondary);
            padding: 0;
            overflow: hidden;
            max-height: 0;
            transition: max-height 0.4s ease;
        }

        .mobile-drawer.open {
            max-height: 200px;
        }

        .mobile-drawer a {
            display: block;
            padding: 12px 24px;
            color: var(--text-secondary);
            font-size: 14px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            transition: var(--transition-base);
        }

        .mobile-drawer a:last-child {
            border-bottom: none;
        }

        .mobile-drawer a:hover,
        .mobile-drawer a.active {
            color: var(--accent);
            background: rgba(0, 180, 216, 0.06);
        }

        /* ===== 面包屑 ===== */
        .breadcrumb {
            padding: 24px 0 0;
        }

        .breadcrumb-inner {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            flex-wrap: wrap;
        }

        .breadcrumb-inner a {
            transition: var(--transition-base);
        }

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

        .breadcrumb-sep {
            opacity: 0.6;
        }

        .breadcrumb-inner .current {
            color: var(--accent);
            max-width: 280px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        /* ===== 文章详情 ===== */
        .article-page {
            padding: 32px 0 64px;
        }

        .article-header {
            max-width: 860px;
            margin: 0 auto;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: var(--shadow-card);
        }

        .article-category {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            background: rgba(0, 180, 216, 0.12);
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }

        .article-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 18px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 18px;
            font-size: 13px;
            color: var(--text-secondary);
            flex-wrap: wrap;
        }

        .article-meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta-item svg {
            width: 14px;
            height: 14px;
            opacity: 0.7;
        }

        .article-body {
            max-width: 860px;
            margin: 24px auto 0;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 40px 48px;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            box-shadow: var(--shadow-card);
            position: relative;
        }

        .article-body::before {
            content: '';
            position: absolute;
            top: 0;
            left: 24px;
            right: 24px;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--accent), transparent);
            opacity: 0.3;
        }

        .article-body p {
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 1.2em;
            color: var(--text-primary);
        }

        .article-body h2 {
            font-size: 24px;
            font-weight: 700;
            margin: 1.5em 0 0.8em;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            line-height: 1.4;
        }

        .article-body h3 {
            font-size: 19px;
            font-weight: 600;
            margin: 1.3em 0 0.6em;
            color: var(--text-primary);
        }

        .article-body img {
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            margin: 20px 0;
        }

        .article-body blockquote {
            border-left: 4px solid var(--accent);
            background: rgba(0, 180, 216, 0.06);
            padding: 14px 20px;
            margin: 20px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
        }

        .article-body a {
            color: var(--accent);
            border-bottom: 1px solid rgba(0, 180, 216, 0.3);
        }

        .article-body a:hover {
            border-bottom-color: var(--accent);
            text-shadow: 0 0 16px rgba(0, 180, 216, 0.3);
        }

        .article-body ul,
        .article-body ol {
            margin: 1em 0 1.2em;
            padding-left: 1.6em;
            color: var(--text-primary);
        }

        .article-body ul li,
        .article-body ol li {
            margin-bottom: 0.5em;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            font-size: 14px;
        }

        .article-body th {
            background: rgba(0, 180, 216, 0.1);
            color: var(--text-primary);
            font-weight: 600;
            padding: 12px 16px;
            text-align: left;
            border: 1px solid var(--border-light);
        }

        .article-body td {
            padding: 10px 16px;
            border: 1px solid rgba(255, 255, 255, 0.06);
            color: var(--text-secondary);
        }

        .article-body code {
            background: var(--bg-secondary);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 4px;
            padding: 2px 6px;
            font-size: 14px;
            color: var(--accent);
            font-family: "DIN Alternate", "Roboto Mono", monospace;
        }

        .article-body pre {
            background: var(--bg-secondary);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            padding: 20px;
            overflow-x: auto;
            margin: 20px 0;
        }

        .article-body pre code {
            background: none;
            border: none;
            padding: 0;
            color: var(--text-primary);
        }

        .not-found-wrap {
            text-align: center;
            padding: 80px 24px;
        }

        .not-found-icon {
            font-size: 56px;
            margin-bottom: 20px;
            opacity: 0.4;
        }

        .not-found-title {
            font-size: 22px;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--text-primary);
        }

        .not-found-text {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 28px;
        }

        .btn-back-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 24px;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: #fff;
            border-radius: 10px;
            font-weight: 500;
            transition: var(--transition-base);
            box-shadow: var(--shadow-glow);
        }

        .btn-back-home:hover {
            box-shadow: var(--shadow-glow-hover);
            transform: translateY(-2px);
        }

        /* ===== 文章标签 ===== */
        .article-tags {
            max-width: 860px;
            margin: 20px auto 0;
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .tag-label {
            font-size: 13px;
            color: var(--text-secondary);
        }

        .tag-item {
            display: inline-block;
            padding: 4px 14px;
            background: rgba(123, 97, 255, 0.12);
            border: 1px solid rgba(123, 97, 255, 0.2);
            border-radius: 20px;
            font-size: 12px;
            color: var(--neon-purple);
            transition: var(--transition-base);
        }

        .tag-item:hover {
            background: rgba(123, 97, 255, 0.2);
            border-color: var(--neon-purple);
        }

        /* ===== 相关推荐 ===== */
        .related-section {
            padding: 40px 0 64px;
        }

        .section-title {
            font-size: 24px;
            font-weight: 700;
            letter-spacing: -0.01em;
            margin-bottom: 28px;
            text-align: center;
        }

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

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

        .stream-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition-base);
            box-shadow: var(--shadow-card);
        }

        .stream-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 180, 216, 0.4);
            box-shadow: var(--shadow-glass);
        }

        .stream-card-cover {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
        }

        .stream-card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .stream-card:hover .stream-card-cover img {
            transform: scale(1.03);
        }

        .stream-card-body {
            padding: 18px 20px;
        }

        .stream-card-title {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            color: var(--text-primary);
            transition: var(--transition-base);
        }

        .stream-card:hover .stream-card-title {
            color: var(--accent);
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 24px 0 64px;
        }

        .faq-wrapper {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-item.active {
            border-color: rgba(0, 180, 216, 0.4);
            background: rgba(0, 180, 216, 0.06);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            text-align: left;
            transition: var(--transition-base);
        }

        .faq-question:hover {
            color: var(--accent);
        }

        .faq-icon {
            position: relative;
            width: 20px;
            height: 20px;
            flex-shrink: 0;
        }

        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            background: var(--accent);
            border-radius: 2px;
            transition: var(--transition-base);
        }

        .faq-icon::before {
            width: 14px;
            height: 2px;
            top: 9px;
            left: 3px;
        }

        .faq-icon::after {
            width: 2px;
            height: 14px;
            top: 3px;
            left: 9px;
            transition: transform 0.3s ease;
        }

        .faq-item.active .faq-icon::after {
            transform: scaleY(0);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            padding: 0 20px;
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-secondary);
            transition: max-height 0.4s ease, padding 0.4s ease;
        }

        .faq-answer-inner {
            padding-bottom: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 12px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px;
        }

        /* ===== CTA 订阅 ===== */
        .cta-section {
            padding: 40px 0 80px;
        }

        .cta-card {
            position: relative;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            overflow: hidden;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            box-shadow: var(--shadow-glass);
            max-width: 860px;
            margin: 0 auto;
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: -60%;
            left: -60%;
            width: 220%;
            height: 220%;
            background: radial-gradient(circle at 30% 20%, rgba(0, 180, 216, 0.12), transparent 45%);
            pointer-events: none;
        }

        .cta-title {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
            position: relative;
        }

        .cta-desc {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 480px;
            margin: 0 auto 28px;
            position: relative;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 460px;
            margin: 0 auto;
            position: relative;
        }

        .subscribe-form input {
            flex: 1;
            padding: 13px 20px;
            background: rgba(11, 19, 36, 0.8);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 10px;
            font-size: 14px;
            color: var(--text-primary);
            transition: var(--transition-base);
        }

        .subscribe-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(0, 180, 216, 0.15);
        }

        .subscribe-form input.error {
            border-color: #E5484D;
            box-shadow: 0 0 0 4px rgba(229, 72, 77, 0.1);
        }

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

        .btn-subscribe {
            padding: 13px 28px;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: #fff;
            font-weight: 600;
            border-radius: 10px;
            white-space: nowrap;
            transition: var(--transition-base);
            box-shadow: var(--shadow-glow);
        }

        .btn-subscribe:hover {
            box-shadow: var(--shadow-glow-hover);
            transform: translateY(-2px);
        }

        .btn-subscribe.active {
            background: var(--status-online);
            box-shadow: 0 0 20px rgba(45, 212, 191, 0.3);
        }

        .form-tip {
            font-size: 12px;
            color: var(--text-secondary);
            margin-top: 12px;
            min-height: 18px;
        }

        .form-tip.error {
            color: #E5484D;
        }

        /* ===== 返回按钮 ===== */
        .article-actions {
            max-width: 860px;
            margin: 32px auto 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }

        .btn-text {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border: 1px solid var(--accent);
            color: var(--accent);
            border-radius: 10px;
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition-base);
            background: transparent;
        }

        .btn-text:hover {
            background: rgba(0, 180, 216, 0.1);
            box-shadow: 0 0 16px rgba(0, 180, 216, 0.2);
        }

        .btn-top {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            color: var(--text-secondary);
            border-radius: 10px;
            font-size: 14px;
            transition: var(--transition-base);
        }

        .btn-top:hover {
            color: var(--accent);
            border-color: var(--accent);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 56px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 32px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .footer-logo span {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--accent), var(--neon-purple));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: var(--text-secondary);
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            padding: 6px 0;
            color: var(--text-secondary);
            transition: var(--transition-base);
        }

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

        .footer-bottom {
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 12px;
            color: var(--text-secondary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== 焦点可见性 ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1199px) {
            .featured-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }

            .article-header {
                padding: 28px 32px;
            }

            .article-body {
                padding: 32px 36px;
            }
        }

        @media (max-width: 1023px) {
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .article-header {
                padding: 24px 28px;
            }

            .article-title {
                font-size: 28px;
            }

            .article-body {
                padding: 28px 28px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

            .subscribe-form {
                flex-direction: column;
            }
        }

        @media (max-width: 767px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .nav-trends {
                display: none;
            }

            .menu-toggle {
                display: flex;
            }

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

            .nav-list {
                overflow: hidden;
                gap: 20px;
            }

            .nav-link {
                font-size: 13px;
            }

            .brand-name {
                font-size: 14px;
            }

            .article-meta {
                gap: 12px;
                font-size: 12px;
            }

            .article-title {
                font-size: 24px;
                line-height: 1.35;
            }

            .article-body p {
                font-size: 15px;
            }

            .article-body h2 {
                font-size: 20px;
            }

            .article-body h3 {
                font-size: 17px;
            }

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

            .cta-card {
                padding: 32px 24px;
            }

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

            .faq-question {
                font-size: 14px;
            }

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

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }

            .breadcrumb-inner .current {
                max-width: 180px;
            }
        }

        @media (max-width: 519px) {
            .header-actions .search-toggle {
                display: none;
            }

            .btn-mini {
                font-size: 12px;
                padding: 5px 10px;
            }

            .article-header {
                padding: 20px 20px;
                border-radius: var(--radius-md);
            }

            .article-body {
                padding: 20px 20px;
                border-radius: var(--radius-md);
            }

            .article-actions {
                flex-wrap: wrap;
            }

            .btn-text,
            .btn-top {
                flex: 1;
                justify-content: center;
                font-size: 13px;
            }

            .cta-card {
                padding: 24px 20px;
            }

            .btn-subscribe {
                width: 100%;
            }
        }

/* roulang page: category1 */
:root {
  --bg-primary: #0B1324;
  --bg-secondary: #0F1D33;
  --bg-deep: #080E1A;
  --primary: #00B4D8;
  --primary-dark: #0090B0;
  --accent: #7B61FF;
  --success: #2DD4BF;
  --warning: #F5B544;
  --danger: #E5484D;
  --text-primary: #E8F0FF;
  --text-secondary: #8CA3C0;
  --border-primary: rgba(0, 180, 216, 0.15);
  --glass-bg: rgba(255, 255, 255, 0.04);
  --glass-border: rgba(255, 255, 255, 0.08);
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-primary: 0 0 20px rgba(0, 180, 216, 0.35);
  --shadow-primary-hover: 0 0 28px rgba(0, 180, 216, 0.55);
  --spacing-section: 84px;
  --container-width: 1280px;
  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "DIN Alternate", "Roboto Mono", "SF Mono", Consolas, monospace;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: 15px;
  overflow-x: hidden;
}

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

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

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

button {
  border: none;
  background: none;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}

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

/* ========== Header / Nav ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 19, 36, 0.88);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border-bottom: 1px solid var(--border-primary);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.header-top {
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.header-top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 58px;
  gap: 16px;
  position: relative;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-logo {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 800;
  color: #fff;
  box-shadow: 0 0 12px rgba(0, 180, 216, 0.35);
}

.brand-name {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  white-space: nowrap;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.search-toggle {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  color: var(--text-secondary);
  transition: color 0.2s, background 0.2s;
}

.search-toggle:hover {
  color: var(--primary);
  background: rgba(0, 180, 216, 0.08);
}

.search-toggle svg {
  width: 18px;
  height: 18px;
}

.btn-mini {
  display: inline-flex;
  align-items: center;
  padding: 7px 16px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  transition: box-shadow 0.3s, transform 0.2s;
  white-space: nowrap;
}

.btn-mini:hover {
  box-shadow: var(--shadow-primary);
  transform: translateY(-1px);
}

.btn-mini:active {
  transform: scale(0.97);
}

.header-search {
  position: absolute;
  right: 0;
  top: 58px;
  width: 280px;
  padding: 10px 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 0.25s, transform 0.25s, visibility 0.25s;
  z-index: 50;
}

.header-search.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.header-search input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
  font-size: 14px;
}

.header-search input::placeholder {
  color: var(--text-secondary);
}

.header-search input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.15);
}

.header-nav {
  background: rgba(15, 29, 51, 0.75);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 50px;
  gap: 16px;
}

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

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

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  transition: color 0.2s, background 0.2s;
  position: relative;
}

.nav-link:hover {
  color: var(--text-primary);
  background: rgba(0, 180, 216, 0.08);
}

.nav-link.active {
  color: var(--primary);
  background: rgba(0, 180, 216, 0.12);
}

.nav-link.active::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 1px;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
  box-shadow: 0 0 8px rgba(0, 180, 216, 0.6);
}

.nav-trends {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.trend-label {
  font-size: 12px;
  color: var(--warning);
  background: rgba(245, 181, 68, 0.12);
  padding: 3px 8px;
  border-radius: 6px;
  font-weight: 600;
  white-space: nowrap;
}

.nav-trends a {
  font-size: 13px;
  color: var(--text-secondary);
  padding: 5px 10px;
  border-radius: 6px;
  white-space: nowrap;
  transition: color 0.2s, background 0.2s;
}

.nav-trends a:hover {
  color: var(--primary);
  background: rgba(0, 180, 216, 0.08);
}

.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  flex-shrink: 0;
}

.menu-toggle:hover {
  background: rgba(255, 255, 255, 0.06);
}

.menu-toggle svg {
  width: 22px;
  height: 22px;
}

.mobile-drawer {
  display: none;
  flex-direction: column;
  background: var(--bg-secondary);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding: 12px 16px;
  gap: 4px;
}

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

.mobile-drawer a {
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 15px;
  transition: color 0.2s, background 0.2s;
}

.mobile-drawer a:hover {
  color: var(--primary);
  background: rgba(0, 180, 216, 0.08);
}

.mobile-drawer a.active {
  color: var(--primary);
  background: rgba(0, 180, 216, 0.12);
  font-weight: 600;
}

/* ========== Button ========== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary) 0%, #0077B6 100%);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
  box-shadow: var(--shadow-primary);
  border: none;
  transition: box-shadow 0.3s, transform 0.2s, background 0.3s;
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary:hover {
  box-shadow: var(--shadow-primary-hover);
  transform: translateY(-2px);
  background: linear-gradient(135deg, #00C4EA 0%, #0090B0 100%);
}

.btn-primary:active {
  transform: scale(0.97);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 26px;
  border-radius: 10px;
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--primary);
  font-size: 15px;
  font-weight: 500;
  transition: box-shadow 0.3s, transform 0.2s, border-color 0.3s, color 0.3s;
  white-space: nowrap;
}

.btn-ghost:hover {
  border-color: var(--primary);
  box-shadow: 0 0 16px rgba(0, 180, 216, 0.2);
  color: var(--primary);
  transform: translateY(-2px);
}

.btn-ghost:active {
  transform: scale(0.97);
}

.btn-block {
  width: 100%;
}

/* ========== Hero ========== */
.cate-hero {
  position: relative;
  padding: 90px 0 96px;
  background: linear-gradient(115deg, rgba(8, 15, 30, 0.92) 0%, rgba(8, 15, 30, 0.72) 45%, rgba(8, 15, 30, 0.35) 100%),
              url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  overflow: hidden;
}

.cate-hero::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -80px;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(0, 180, 216, 0.18) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}

.hero-content {
  max-width: 620px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 13px;
  background: rgba(245, 181, 68, 0.12);
  border: 1px solid rgba(245, 181, 68, 0.25);
  color: var(--warning);
  font-size: 12px;
  font-weight: 600;
  border-radius: 20px;
  margin-bottom: 18px;
  letter-spacing: 0.04em;
}

.hero-title {
  font-size: 42px;
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.hero-title span {
  color: var(--primary);
}

.hero-lead {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 520px;
  margin-bottom: 28px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-num {
  font-size: 28px;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--primary);
  line-height: 1.2;
}

.stat-label {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.countdown-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 24px;
  box-shadow: var(--shadow-glass);
  position: relative;
  overflow: hidden;
}

.countdown-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(0, 180, 216, 0.16) 0%, transparent 70%);
  pointer-events: none;
}

.countdown-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(45, 212, 191, 0.15);
  border: 1px solid rgba(45, 212, 191, 0.3);
  color: var(--success);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 16px;
  white-space: nowrap;
}

.live-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
  animation: breathe 1.2s ease-in-out infinite;
}

@keyframes breathe {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

.countdown-match {
  font-size: 14px;
  color: var(--text-secondary);
  margin-left: 4px;
}

.countdown-label {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 12px;
  margin-bottom: 4px;
  text-align: center;
  letter-spacing: 0.05em;
}

.countdown-time {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 42px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 20px;
  line-height: 1;
}

.countdown-time .time-colon {
  color: var(--text-secondary);
  font-size: 28px;
  margin: 0 2px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--text-secondary);
  font-size: 13px;
  transition: color 0.2s;
}

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

.text-link-center {
  display: flex;
  justify-content: center;
  margin-top: 14px;
}

/* ========== Section base ========== */
.section {
  padding: var(--spacing-section) 0;
}

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

.section-header {
  margin-bottom: 40px;
  max-width: 640px;
}

.section-eye {
  display: inline-block;
  font-size: 12px;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
  font-weight: 600;
}

.section-title {
  font-size: 30px;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}

.section-sub {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
}

/* ========== Advantage ========== */
.adv-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.adv-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 28px 22px;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

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

.adv-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(0, 180, 216, 0.18), rgba(123, 97, 255, 0.18));
  border: 1px solid rgba(0, 180, 216, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  color: var(--primary);
}

.adv-icon svg {
  width: 22px;
  height: 22px;
}

.adv-title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}

.adv-text {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.7;
}

/* ========== Matches ========== */
.match-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.match-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
  display: flex;
  flex-direction: column;
}

.match-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-primary);
  box-shadow: var(--shadow-card);
}

.match-cover {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--bg-deep);
}

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

.match-card:hover .match-cover img {
  transform: scale(1.04);
}

.match-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(8, 13, 26, 0.5) 0%, transparent 45%);
}

.match-status {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.match-status.live {
  background: rgba(229, 72, 77, 0.85);
  color: #fff;
}

.match-status.live::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #fff;
  animation: breathe 1s infinite;
}

.match-status.upcoming {
  background: rgba(11, 19, 36, 0.75);
  color: var(--warning);
  border: 1px solid rgba(245, 181, 68, 0.3);
}

.match-status.finished {
  background: rgba(11, 19, 36, 0.75);
  color: var(--text-secondary);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.match-body {
  padding: 20px 20px 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.match-tags {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

.tag {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(0, 180, 216, 0.12);
  border: 1px solid rgba(0, 180, 216, 0.2);
  color: var(--primary);
  font-size: 12px;
  border-radius: 6px;
  font-weight: 500;
}

.match-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.4;
}

.match-desc {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.65;
  margin-bottom: 16px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.match-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 12px;
  margin-top: auto;
}

.match-views {
  font-size: 13px;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.match-views svg {
  width: 14px;
  height: 14px;
  color: var(--warning);
}

.match-link {
  font-size: 13px;
  color: var(--primary);
  font-weight: 500;
  transition: color 0.2s;
}

.match-link:hover {
  color: #fff;
}

.match-link::after {
  content: " →";
  transition: margin-left 0.2s;
}

.match-link:hover::after {
  margin-left: 4px;
}

/* ========== Scenarios ========== */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.scenario-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.scenario-card:hover {
  transform: translateY(-4px);
  border-color: rgba(123, 97, 255, 0.35);
  box-shadow: var(--shadow-card);
}

.scenario-icon {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(123, 97, 255, 0.2), rgba(0, 180, 216, 0.14));
  border: 1px solid rgba(123, 97, 255, 0.28);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 20px;
}

.scenario-icon svg {
  width: 24px;
  height: 24px;
}

.scenario-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.scenario-text {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.75;
}

/* ========== Process ========== */
.process-section {
  background: var(--bg-secondary);
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

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

.steps::before {
  content: "";
  position: absolute;
  top: 32px;
  left: 60px;
  right: 60px;
  height: 1px;
  background: linear-gradient(to right, rgba(0, 180, 216, 0.1), rgba(0, 180, 216, 0.35), rgba(0, 180, 216, 0.1));
}

.step {
  position: relative;
  text-align: center;
  padding: 0 12px;
}

.step-num {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  box-shadow: 0 0 20px rgba(0, 180, 216, 0.25);
  position: relative;
  z-index: 1;
}

.step-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}

.step-text {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

/* ========== FAQ ========== */
.faq-wrap {
  max-width: 800px;
  margin: 0 auto;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.3s, background 0.3s;
}

.faq-item.open {
  border-color: var(--border-primary);
  background: rgba(255, 255, 255, 0.055);
  box-shadow: var(--shadow-card);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  text-align: left;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  transition: color 0.2s;
}

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

.faq-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  border-radius: 50%;
  background: rgba(0, 180, 216, 0.12);
  border: 1px solid var(--border-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 16px;
  font-weight: 600;
  transition: transform 0.3s, background 0.3s;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: rgba(0, 180, 216, 0.2);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 20px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.75;
}

.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 20px 18px;
}

/* ========== CTA ========== */
.cta-section {
  padding: 70px 0;
}

.cta-card {
  position: relative;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 52px 48px;
  text-align: center;
  box-shadow: var(--shadow-glass);
  overflow: hidden;
  max-width: 920px;
  margin: 0 auto;
}

.cta-card::before {
  content: "";
  position: absolute;
  top: -80px;
  left: 50%;
  transform: translateX(-50%);
  width: 280px;
  height: 200px;
  background: radial-gradient(ellipse, rgba(0, 180, 216, 0.18) 0%, transparent 70%);
  pointer-events: none;
}

.cta-card h2 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.cta-card p {
  color: var(--text-secondary);
  font-size: 15px;
  max-width: 520px;
  margin: 0 auto 28px;
  line-height: 1.7;
}

.cta-form {
  display: flex;
  gap: 12px;
  max-width: 460px;
  margin: 0 auto 12px;
}

.cta-form input {
  flex: 1;
  padding: 12px 18px;
  background: rgba(11, 19, 36, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  color: var(--text-primary);
  font-size: 14px;
  transition: border-color 0.3s, box-shadow 0.3s;
  min-width: 0;
}

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

.cta-form input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.15);
}

.cta-form input.error {
  border-color: var(--danger);
  box-shadow: 0 0 0 3px rgba(229, 72, 77, 0.15);
}

.form-tip {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 10px;
}

.cta-form .btn-primary.subscribed {
  background: linear-gradient(135deg, var(--success) 0%, #0FA88A 100%);
  box-shadow: 0 0 20px rgba(45, 212, 191, 0.3);
}

/* ========== Footer ========== */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 56px;
  margin-top: 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}

.footer-brand .footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 14px;
}

.footer-brand .footer-logo span {
  width: 32px;
  height: 32px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-size: 16px;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.7;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  color: var(--text-secondary);
  font-size: 14px;
  padding: 4px 0;
  transition: color 0.2s, padding-left 0.2s;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding: 20px 0 24px;
  text-align: center;
  color: rgba(140, 163, 192, 0.7);
  font-size: 13px;
}

/* ========== Responsive ========== */
@media (max-width: 1199px) {
  .hero-title {
    font-size: 36px;
  }

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

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

  .steps::before {
    display: none;
  }

  .step {
    padding: 12px 20px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
  }

  .step-num {
    margin-bottom: 12px;
  }
}

@media (max-width: 1023px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-content {
    max-width: none;
  }

  .countdown-card {
    max-width: 420px;
  }

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

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

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

@media (max-width: 767px) {
  :root {
    --spacing-section: 52px;
  }

  .header-top-inner {
    height: 54px;
  }

  .brand-name {
    font-size: 16px;
  }

  .header-nav {
    background: transparent;
  }

  .nav-inner {
    position: relative;
  }

  .nav-list {
    display: none;
  }

  .nav-trends {
    display: none;
  }

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

  .header-search {
    top: 54px;
    right: 12px;
    left: 12px;
    width: auto;
  }

  .cate-hero {
    padding: 56px 0 64px;
  }

  .hero-title {
    font-size: 30px;
  }

  .hero-lead {
    font-size: 15px;
  }

  .hero-stats {
    gap: 24px;
  }

  .stat-num {
    font-size: 24px;
  }

  .countdown-time {
    font-size: 34px;
  }

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

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

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

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

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

  .cta-card {
    padding: 36px 20px;
  }

  .cta-card h2 {
    font-size: 22px;
  }

  .cta-form {
    flex-direction: column;
    gap: 10px;
  }

  .cta-form .btn-primary {
    width: 100%;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    font-size: 12px;
  }

  .container {
    padding: 0 16px;
  }
}

@media (max-width: 519px) {
  .hero-title {
    font-size: 26px;
  }

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

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

  .hero-stats {
    gap: 20px;
    justify-content: space-between;
  }

  .countdown-card {
    padding: 18px;
  }

  .countdown-time {
    font-size: 30px;
  }

  .countdown-time .time-colon {
    font-size: 20px;
  }

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