/* roulang page: index */
:root {
  --primary: #2E63FF;
  --primary-dark: #0E2A6F;
  --cyan: #19D3DA;
  --amber: #F5A524;
  --gray-blue: #7C8DB5;
  --bg-main: #0B1120;
  --bg-secondary: #111A2E;
  --bg-glass: rgba(255,255,255,0.06);
  --border: rgba(255,255,255,0.10);
  --border-hover: rgba(46,99,255,0.55);
  --text-main: #F1F5FB;
  --text-secondary: #94A3C0;
  --text-muted: #5C6B8A;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-pill: 999px;
  --shadow: 0 4px 20px rgba(0,0,0,0.30);
  --shadow-hover: 0 8px 40px rgba(46,99,255,0.15);
  --glow-primary: 0 0 24px rgba(46,99,255,0.45);
  --glow-cyan: 0 0 12px rgba(25,211,218,0.35);
  --glow-amber: 0 0 24px rgba(245,165,36,0.35);
  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", "SF Mono", Consolas, monospace;
  --section-space: 80px;
  --container: 1200px;
}
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg-main);
  color: var(--text-main);
  line-height:1.8;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img { max-width:100%; display:block; }
a { color:inherit; text-decoration:none; transition:color .2s ease, border-color .2s ease, background .2s ease, opacity .2s ease; }
ul, ol { list-style:none; }
button, input { font:inherit; border:none; outline:none; background:none; color:inherit; }
:focus-visible { outline:2px solid var(--cyan); outline-offset:3px; border-radius:4px; }
.container { max-width:var(--container); margin:0 auto; padding:0 24px; }
.section { padding:var(--section-space) 0; position:relative; }
.section-header { display:flex; align-items:flex-end; justify-content:space-between; margin-bottom:36px; gap:16px; flex-wrap:wrap; }
.section-header h2 { font-size:30px; font-weight:650; line-height:1.3; letter-spacing:-0.01em; }
.section-header .section-sub { color:var(--text-secondary); font-size:14px; margin-top:6px; }
.section-more { color:var(--text-secondary); font-size:14px; display:inline-flex; align-items:center; gap:4px; transition:.2s; }
.section-more:hover { color:var(--cyan); gap:8px; }
.section-more .arrow { transition:transform .2s; }
.section-more:hover .arrow { transform:translateX(4px); }

/* Buttons */
.btn { display:inline-flex; align-items:center; justify-content:center; gap:8px; padding:12px 28px; border-radius:var(--radius-sm); font-size:15px; font-weight:600; cursor:pointer; transition:all .2s ease; position:relative; }
.btn-primary { background:linear-gradient(135deg, var(--primary), var(--primary-dark)); color:#fff; box-shadow:var(--glow-primary); border:1px solid rgba(46,99,255,0.3); }
.btn-primary:hover { box-shadow:0 0 36px rgba(46,99,255,0.6); transform:translateY(-1px); filter:brightness(1.08); }
.btn-primary:active { transform:translateY(0); box-shadow:0 0 16px rgba(46,99,255,0.4); }
.btn-outline { background:rgba(255,255,255,0.02); color:var(--text-main); border:1px solid var(--border); backdrop-filter:blur(10px); }
.btn-outline:hover { border-color:var(--cyan); color:var(--cyan); box-shadow:0 0 16px rgba(25,211,218,0.12); transform:translateY(-1px); }
.btn-outline:active { transform:translateY(0); }
.btn-amber { background:linear-gradient(135deg, #FFB84C, #E08E00); color:#1A1205; box-shadow:var(--glow-amber); font-weight:700; }
.btn-amber:hover { box-shadow:0 0 32px rgba(245,165,36,0.5); transform:translateY(-1px); filter:brightness(1.05); }
.btn-amber:active { transform:translateY(0); }
.btn:focus-visible { outline:2px solid var(--cyan); outline-offset:2px; }

/* Tag / Badge */
.tag { display:inline-flex; align-items:center; padding:3px 14px; border-radius:var(--radius-pill); font-size:13px; font-weight:500; background:rgba(25,211,218,0.10); color:var(--cyan); border:1px solid rgba(25,211,218,0.25); }
.tag-outline { background:transparent; color:var(--gray-blue); border-color:rgba(255,255,255,0.18); }
.tag-amber { background:rgba(245,165,36,0.10); color:var(--amber); border-color:rgba(245,165,36,0.25); }
.badge-live { display:inline-flex; align-items:center; gap:6px; background:rgba(255,57,57,0.12); color:#FF5555; border:1px solid rgba(255,57,57,0.3); border-radius:var(--radius-pill); padding:4px 14px; font-size:12px; font-weight:600; text-transform:uppercase; letter-spacing:0.04em; }
.badge-live .live-dot { width:8px; height:8px; border-radius:50%; background:#FF4444; animation:pulse 1.6s infinite; }
@keyframes pulse { 0%,100%{opacity:1; box-shadow:0 0 0 0 rgba(255,68,68,0.5);} 50%{opacity:.6; box-shadow:0 0 10px 4px rgba(255,68,68,0.25);} }
.badge-upcoming { display:inline-flex; align-items:center; gap:6px; background:rgba(46,99,255,0.12); color:#7EA0FF; border:1px solid rgba(46,99,255,0.3); border-radius:var(--radius-pill); padding:4px 14px; font-size:12px; font-weight:500; }

/* ===== Header ===== */
.site-header { position:fixed; top:0; left:0; right:0; z-index:100; background:rgba(11,17,32,0.72); backdrop-filter:blur(18px); -webkit-backdrop-filter:blur(18px); border-bottom:1px solid rgba(255,255,255,0.08); transition:background .3s ease, box-shadow .3s ease; }
.site-header.scrolled { background:rgba(8,12,24,0.92); box-shadow:0 4px 30px rgba(0,0,0,0.35); }
.header-inner { display:flex; align-items:center; justify-content:space-between; height:68px; gap:24px; }
.logo { display:flex; align-items:baseline; gap:6px; font-size:19px; font-weight:700; color:var(--text-main); letter-spacing:-0.01em; white-space:nowrap; }
.logo span { font-size:13px; font-weight:600; color:var(--cyan); letter-spacing:0.04em; }
.logo:hover span { color:#fff; }
.main-nav { display:flex; align-items:center; gap:32px; }
.nav-link { font-size:15px; color:rgba(255,255,255,0.72); padding:24px 0 22px; position:relative; transition:color .2s; white-space:nowrap; }
.nav-link::after { content:''; position:absolute; left:0; bottom:16px; width:100%; height:2px; background:linear-gradient(90deg, var(--cyan), transparent); border-radius:2px; opacity:0; transform:scaleX(0.6); transition:opacity .25s ease, transform .25s ease; }
.nav-link:hover { color:#fff; }
.nav-link:hover::after { opacity:1; transform:scaleX(1); }
.nav-link.active { color:#fff; font-weight:600; }
.nav-link.active::after { opacity:1; transform:scaleX(1); background:linear-gradient(90deg, var(--cyan), var(--primary)); }
.nav-cta { display:inline-flex; align-items:center; gap:6px; font-size:14px; color:var(--cyan); border:1px solid rgba(25,211,218,0.3); border-radius:var(--radius-pill); padding:6px 16px; transition:.2s; background:rgba(25,211,218,0.04); }
.nav-cta:hover { background:rgba(25,211,218,0.12); border-color:var(--cyan); box-shadow:0 0 16px rgba(25,211,218,0.15); }
.menu-toggle { display:none; flex-direction:column; gap:5px; padding:8px; cursor:pointer; background:transparent; border:none; }
.menu-toggle span { width:22px; height:2px; background:var(--text-main); border-radius:2px; transition:all .3s ease; }
.menu-toggle.active span:nth-child(1) { transform:translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity:0; }
.menu-toggle.active span:nth-child(3) { transform:translateY(-7px) rotate(-45deg); }

/* ===== Hero ===== */
.hero { position:relative; min-height:100vh; display:flex; align-items:center; padding-top:120px; padding-bottom:60px; overflow:hidden; }
.hero-bg { position:absolute; inset:0; z-index:0; }
.hero-bg img { width:100%; height:100%; object-fit:cover; opacity:0.35; }
.hero-bg::after { content:''; position:absolute; inset:0; background:linear-gradient(180deg, rgba(11,17,32,0.55) 0%, rgba(11,17,32,0.85) 70%, var(--bg-main) 100%); }
.hero-grid-overlay { position:absolute; inset:0; z-index:1; background-image:linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px); background-size:48px 48px; mask-image:radial-gradient(ellipse at center, #000 30%, transparent 75%); }
.hero-glow { position:absolute; top:10%; right:-120px; width:460px; height:460px; background:radial-gradient(circle, rgba(46,99,255,0.22) 0%, transparent 70%); z-index:1; border-radius:50%; filter:blur(30px); }
.hero-inner { position:relative; z-index:2; display:grid; grid-template-columns:1.15fr 0.85fr; gap:56px; align-items:center; }
.hero-left { max-width:640px; }
.hero-tag { display:inline-flex; align-items:center; gap:8px; margin-bottom:20px; }
.hero-tag .line { width:24px; height:1px; background:var(--cyan); }
.hero-tag span { font-size:13px; color:var(--cyan); letter-spacing:0.08em; font-weight:500; }
.hero-title { font-size:44px; line-height:1.22; font-weight:700; letter-spacing:-0.02em; margin-bottom:18px; }
.hero-title .highlight { color:var(--cyan); position:relative; display:inline-block; }
.hero-sub { font-size:16px; color:var(--text-secondary); line-height:1.8; margin-bottom:32px; max-width:520px; }
.hero-actions { display:flex; gap:14px; flex-wrap:wrap; }
.hero-meta { display:flex; gap:20px; margin-top:28px; font-size:13px; color:var(--text-muted); font-family:var(--font-mono); }
.hero-meta span { display:inline-flex; align-items:center; gap:6px; }
.hero-right { position:relative; }
.live-card { position:relative; border-radius:20px; overflow:hidden; border:1px solid rgba(255,255,255,0.14); background:rgba(255,255,255,0.04); backdrop-filter:blur(16px); box-shadow:0 20px 60px rgba(0,0,0,0.4); }
.live-card img { width:100%; height:340px; object-fit:cover; }
.live-card-body { padding:22px; border-top:1px solid rgba(255,255,255,0.08); }
.live-card-top { display:flex; align-items:center; justify-content:space-between; margin-bottom:14px; gap:10px; flex-wrap:wrap; }
.live-card-title { font-size:17px; font-weight:600; color:var(--text-main); }
.live-card-meta { display:flex; gap:14px; font-size:13px; color:var(--text-secondary); font-family:var(--font-mono); flex-wrap:wrap; }
.live-card-meta span { display:inline-flex; align-items:center; gap:5px; }
.live-card-arrow { position:absolute; top:16px; right:16px; width:34px; height:34px; border-radius:50%; background:rgba(0,0,0,0.4); backdrop-filter:blur(8px); display:flex; align-items:center; justify-content:center; color:#fff; border:1px solid rgba(255,255,255,0.15); opacity:0; transition:.3s; }
.live-card:hover .live-card-arrow { opacity:1; }
.live-card-arrow svg { width:16px; height:16px; }

/* ===== Countdown ===== */
.countdown-section { position:relative; z-index:5; margin-top:-80px; padding-bottom:20px; }
.countdown-bar { background:rgba(255,255,255,0.045); backdrop-filter:blur(16px); border:1px solid rgba(255,255,255,0.10); border-radius:18px; padding:24px 32px; display:flex; align-items:center; justify-content:space-between; gap:20px; flex-wrap:wrap; box-shadow:var(--shadow); }
.countdown-label { display:flex; align-items:center; gap:10px; font-size:14px; color:var(--text-secondary); font-weight:500; }
.countdown-label .dot { width:8px; height:8px; border-radius:50%; background:var(--cyan); box-shadow:var(--glow-cyan); animation:pulse 2s infinite; }
.countdown-timer { display:flex; align-items:center; gap:8px; }
.time-box { display:flex; flex-direction:column; align-items:center; padding:8px 14px; border-radius:12px; background:rgba(11,17,32,0.6); border:1px solid rgba(255,255,255,0.06); min-width:74px; }
.time-num { font-family:var(--font-mono); font-size:42px; font-weight:700; color:var(--cyan); line-height:1.1; text-shadow:var(--glow-cyan); font-variant-numeric:tabular-nums; }
.time-label { font-size:12px; color:var(--gray-blue); margin-top:4px; font-family:var(--font-mono); text-transform:uppercase; letter-spacing:0.04em; }
.time-sep { font-family:var(--font-mono); font-size:28px; color:var(--text-muted); font-weight:300; align-self:center; margin-bottom:16px; }
.countdown-bar.ended .time-num { color:var(--amber); text-shadow:var(--glow-amber); }
.countdown-bar.ended .dot { background:var(--amber); box-shadow:var(--glow-amber); }
.countdown-status { display:none; font-size:14px; font-weight:600; color:var(--amber); }
.countdown-bar.ended .countdown-status { display:block; }
.countdown-bar.ended .countdown-timer { display:none; }

/* ===== Highlights ===== */
.highlights { padding-top:60px; }
.highlight-list { display:flex; flex-direction:column; }
.highlight-item { display:grid; grid-template-columns:80px 1fr auto; gap:20px; padding:28px 0; border-bottom:1px solid rgba(255,255,255,0.08); transition:background .2s ease, padding-left .2s ease; }
.highlight-item:first-child { border-top:1px solid rgba(255,255,255,0.08); }
.highlight-item:hover { background:linear-gradient(90deg, rgba(46,99,255,0.05), transparent); padding-left:12px; }
.highlight-num { font-family:var(--font-mono); font-size:40px; font-weight:700; color:rgba(255,255,255,0.16); line-height:1; align-self:start; }
.highlight-body h3 { font-size:18px; font-weight:600; margin-bottom:6px; color:var(--text-main); }
.highlight-body p { font-size:15px; color:var(--text-secondary); max-width:560px; }
.highlight-icon { align-self:center; width:44px; height:44px; border-radius:12px; display:flex; align-items:center; justify-content:center; background:rgba(46,99,255,0.12); border:1px solid rgba(46,99,255,0.25); color:var(--cyan); }
.highlight-icon svg { width:20px; height:20px; }

/* ===== Subscribe ===== */
.subscribe { padding-top:20px; }
.subscribe-card { background:linear-gradient(145deg, rgba(46,99,255,0.08) 0%, rgba(17,26,46,0.6) 40%, rgba(11,17,32,0.6) 100%); border:1px solid rgba(46,99,255,0.2); border-radius:20px; padding:48px; text-align:center; position:relative; overflow:hidden; }
.subscribe-card::before { content:''; position:absolute; top:-80px; right:-80px; width:260px; height:260px; border-radius:50%; background:rgba(46,99,255,0.12); filter:blur(40px); }
.subscribe-card::after { content:''; position:absolute; bottom:-80px; left:-60px; width:180px; height:180px; border-radius:50%; background:rgba(25,211,218,0.06); filter:blur(40px); }
.subscribe-inner { position:relative; z-index:2; max-width:560px; margin:0 auto; }
.subscribe-inner h2 { font-size:28px; font-weight:650; margin-bottom:10px; }
.subscribe-inner .sub-desc { color:var(--text-secondary); font-size:15px; margin-bottom:28px; }
.subscribe-form { display:flex; gap:10px; background:rgba(255,255,255,0.04); border:1px solid rgba(255,255,255,0.12); border-radius:var(--radius-sm); padding:6px; backdrop-filter:blur(12px); }
.subscribe-form input { flex:1; background:transparent; border:none; padding:12px 16px; font-size:15px; color:var(--text-main); border-radius:6px; }
.subscribe-form input::placeholder { color:var(--text-muted); }
.subscribe-form input:focus { outline:2px solid var(--primary); outline-offset:-2px; box-shadow:0 0 12px rgba(46,99,255,0.2); }
.subscribe-form .btn { border-radius:8px; }
.privacy-note { font-size:12px; color:var(--text-muted); margin-top:14px; }
.subscribe-success { display:flex; flex-direction:column; align-items:center; gap:10px; padding:16px 0; }
.success-icon { width:56px; height:56px; border-radius:50%; background:rgba(25,211,218,0.14); border:1px solid rgba(25,211,218,0.3); display:flex; align-items:center; justify-content:center; color:var(--cyan); font-size:26px; box-shadow:var(--glow-cyan); }
.subscribe-success h3 { font-size:20px; color:var(--text-main); }
.subscribe-success p { font-size:14px; color:var(--text-secondary); }

/* ===== Info / CMS ===== */
.info-section { background:var(--bg-secondary); position:relative; overflow:hidden; }
.info-section::before { content:''; position:absolute; top:0; left:0; right:0; height:1px; background:linear-gradient(90deg, transparent, rgba(46,99,255,0.3), transparent); }
.info-section::after { content:''; position:absolute; bottom:-120px; left:20%; width:340px; height:340px; background:radial-gradient(circle, rgba(46,99,255,0.08), transparent 70%); filter:blur(40px); }
.info-list { display:grid; grid-template-columns:repeat(2, 1fr); gap:24px; position:relative; z-index:2; }
.info-card { background:rgba(255,255,255,0.04); border:1px solid var(--border); border-radius:var(--radius); padding:24px; transition:transform .25s ease, border-color .25s ease, box-shadow .25s ease; display:flex; flex-direction:column; gap:10px; }
.info-card:hover { transform:translateY(-4px); border-color:var(--border-hover); box-shadow:var(--shadow-hover); }
.info-card h3 { font-size:17px; font-weight:600; line-height:1.5; }
.info-card h3 a { display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.info-card h3 a:hover { color:var(--cyan); }
.info-card p { font-size:14px; color:var(--text-secondary); display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; flex-grow:1; }
.info-meta { display:flex; align-items:center; gap:12px; padding-top:12px; border-top:1px solid rgba(255,255,255,0.06); font-family:var(--font-mono); font-size:12px; color:var(--gray-blue); }
.info-cat { padding:2px 10px; border-radius:var(--radius-pill); background:rgba(25,211,218,0.08); border:1px solid rgba(25,211,218,0.2); color:var(--cyan); font-family:var(--font-sans); font-size:12px; }
.empty-state { grid-column:1/-1; border:1px dashed rgba(255,255,255,0.15); border-radius:var(--radius); padding:48px; text-align:center; color:var(--text-muted); background:rgba(255,255,255,0.02); }
.empty-icon { display:flex; align-items:center; justify-content:center; width:56px; height:56px; margin:0 auto 14px; border-radius:16px; background:rgba(255,255,255,0.04); border:1px solid rgba(255,255,255,0.1); font-size:24px; }
.empty-state p { font-size:14px; }

/* ===== Replay ===== */
.replay-grid { display:grid; grid-template-columns:1fr 1fr; gap:24px; }
.replay-card { position:relative; border-radius:18px; overflow:hidden; border:1px solid rgba(255,255,255,0.1); min-height:240px; display:flex; align-items:flex-end; transition:transform .25s ease, border-color .25s ease, box-shadow .25s ease; background:var(--bg-secondary); }
.replay-card::after { content:''; position:absolute; inset:0; background:linear-gradient(180deg, rgba(11,17,32,0) 30%, rgba(11,17,32,0.82) 100%); z-index:1; }
.replay-card:hover { transform:translateY(-5px); border-color:var(--border-hover); box-shadow:var(--shadow-hover); }
.replay-card img { position:absolute; inset:0; width:100%; height:100%; object-fit:cover; opacity:0.55; transition:transform .4s ease, opacity .3s ease; }
.replay-card:hover img { transform:scale(1.04); opacity:0.75; }
.replay-card-body { position:relative; z-index:2; padding:28px; width:100%; }
.replay-card-body h3 { font-size:20px; font-weight:650; margin-bottom:4px; }
.replay-card-body p { font-size:14px; color:var(--text-secondary); margin-bottom:12px; overflow:hidden; display:-webkit-box; -webkit-line-clamp:1; -webkit-box-orient:vertical; }
.replay-card .card-arrow { position:absolute; top:24px; right:24px; z-index:2; width:40px; height:40px; border-radius:50%; background:rgba(255,255,255,0.1); backdrop-filter:blur(8px); display:flex; align-items:center; justify-content:center; border:1px solid rgba(255,255,255,0.18); transition:.3s; color:#fff; }
.replay-card:hover .card-arrow { background:var(--primary); border-color:var(--primary); box-shadow:var(--glow-primary); transform:translateX(4px); }
.replay-card .card-arrow svg { width:18px; height:18px; }

/* ===== FAQ ===== */
.faq-list { max-width:820px; margin:0 auto; }
.faq-item { border-bottom:1px solid rgba(255,255,255,0.08); }
.faq-item:first-child { border-top:1px solid rgba(255,255,255,0.08); }
.faq-question { width:100%; display:flex; align-items:center; justify-content:space-between; gap:16px; padding:22px 8px; cursor:pointer; background:transparent; border:none; text-align:left; font-size:16px; font-weight:500; color:rgba(255,255,255,0.9); transition:color .2s; }
.faq-question:hover { color:var(--cyan); }
.faq-icon { flex-shrink:0; width:28px; height:28px; border-radius:50%; border:1px solid rgba(255,255,255,0.2); display:flex; align-items:center; justify-content:center; transition:transform .3s ease, border-color .3s ease; position:relative; }
.faq-icon::before, .faq-icon::after { content:''; position:absolute; background:currentColor; transition:transform .3s ease; }
.faq-icon::before { width:10px; height:1.5px; }
.faq-icon::after { width:1.5px; height:10px; }
.faq-item.active .faq-icon { border-color:var(--cyan); color:var(--cyan); transform:rotate(45deg); }
.faq-answer { max-height:0; overflow:hidden; transition:max-height .35s ease, padding .35s ease; }
.faq-answer-inner { padding:0 8px 22px 8px; border-left:2px solid var(--primary); margin-left:12px; padding-left:20px; color:var(--text-secondary); font-size:15px; line-height:1.8; }
.faq-item.active .faq-answer { max-height:600px; }

/* ===== CTA Bottom ===== */
.cta-section { padding:40px 0 80px; }
.cta-box { background:linear-gradient(135deg, rgba(46,99,255,0.1) 0%, rgba(17,26,46,0.5) 100%); border:1px solid rgba(46,99,255,0.25); border-radius:20px; padding:40px 48px; display:flex; align-items:center; justify-content:space-between; gap:28px; flex-wrap:wrap; }
.cta-box h3 { font-size:22px; font-weight:650; }
.cta-box p { color:var(--text-secondary); font-size:14px; margin-top:4px; }
.cta-actions { display:flex; gap:14px; flex-wrap:wrap; }

/* ===== Footer ===== */
.site-footer { background:#080D18; border-top:1px solid rgba(255,255,255,0.08); padding:56px 0 0; }
.footer-top { display:grid; grid-template-columns:1.4fr 0.8fr 0.8fr 1fr; gap:40px; padding-bottom:40px; border-bottom:1px solid rgba(255,255,255,0.06); }
.footer-brand .logo { margin-bottom:14px; }
.footer-brand p { font-size:14px; color:var(--text-muted); max-width:280px; line-height:1.7; }
.footer-col h4 { font-size:14px; font-weight:600; color:#fff; margin-bottom:14px; letter-spacing:0.04em; }
.footer-col ul { display:flex; flex-direction:column; gap:9px; }
.footer-col a { font-size:14px; color:var(--text-secondary); transition:.2s; }
.footer-col a:hover { color:var(--cyan); text-decoration:underline; text-underline-offset:4px; }
.footer-col .footer-contact li { font-size:14px; color:var(--text-secondary); margin-bottom:9px; }
.footer-bottom { padding:22px 0; display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap; font-size:13px; color:var(--text-muted); }
.footer-bottom a { color:var(--text-muted); }
.footer-bottom a:hover { color:var(--cyan); }

/* ===== Responsive ===== */
@media (max-width:1023px) {
  .hero-inner { grid-template-columns:1fr; gap:40px; }
  .hero-title { font-size:36px; }
  .hero { min-height:auto; padding-top:140px; }
  .countdown-section { margin-top:-40px; }
  .countdown-bar { flex-direction:column; align-items:flex-start; padding:20px; }
  .info-list { grid-template-columns:1fr; }
  .footer-top { grid-template-columns:1fr 1fr; }
  .main-nav { gap:20px; }
}
@media (max-width:767px) {
  :root { --section-space:48px; }
  .container { padding:0 20px; }
  .hero { padding-top:110px; padding-bottom:40px; }
  .hero-title { font-size:30px; }
  .hero-sub { font-size:15px; }
  .hero-actions { flex-direction:column; width:100%; }
  .hero-actions .btn { width:100%; }
  .hero-meta { flex-wrap:wrap; gap:10px; }
  .live-card img { height:220px; }
  .countdown-timer { gap:4px; }
  .time-box { min-width:56px; padding:6px 8px; }
  .time-num { font-size:30px; }
  .time-sep { font-size:20px; }
  .highlight-item { grid-template-columns:44px 1fr; gap:14px; padding:24px 0; }
  .highlight-num { font-size:28px; }
  .highlight-icon { display:none; }
  .subscribe-card { padding:36px 20px; }
  .subscribe-form { flex-direction:column; gap:8px; padding:12px; }
  .subscribe-form .btn { width:100%; }
  .replay-grid { grid-template-columns:1fr; }
  .replay-card { min-height:200px; }
  .cta-box { padding:28px 20px; }
  .cta-actions { width:100%; }
  .cta-actions .btn { flex:1; min-width:130px; }
  .footer-top { grid-template-columns:1fr; gap:32px; }
  .footer-bottom { flex-direction:column; text-align:center; }
  .menu-toggle { display:flex; }
  .main-nav { position:fixed; top:68px; left:0; right:0; background:rgba(8,12,24,0.96); backdrop-filter:blur(20px); flex-direction:column; align-items:flex-start; padding:24px 28px 36px; gap:0; border-bottom:1px solid rgba(255,255,255,0.1); transform:translateY(-120%); transition:transform .35s ease; z-index:99; }
  .main-nav.open { transform:translateY(0); }
  .nav-link { padding:14px 0; width:100%; font-size:17px; border-bottom:1px solid rgba(255,255,255,0.06); }
  .nav-link::after { display:none; }
  .nav-cta { margin-top:16px; width:100%; justify-content:center; }
}
@media (max-width:520px) {
  .hero-title { font-size:28px; }
  .section-header h2 { font-size:24px; }
  .section-header { flex-direction:column; align-items:flex-start; gap:10px; }
  .time-box { min-width:50px; padding:5px 6px; }
  .time-num { font-size:24px; }
  .time-label { font-size:11px; }
  .countdown-label { font-size:13px; }
}

/* roulang page: category1 */
:root {
  --primary: #2E63FF;
  --primary-dark: #0E2A6F;
  --cyan: #19D3DA;
  --amber: #F5A524;
  --bg: #0B1120;
  --bg-2: #111A2E;
  --text: #F1F5FB;
  --muted: #94A3C0;
  --disabled: #5C6B8A;
  --border: rgba(255,255,255,0.10);
  --border-hover: rgba(46,99,255,0.55);
  --divider: rgba(255,255,255,0.08);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 20px rgba(0,0,0,0.30);
  --shadow-hover: 0 8px 40px rgba(46,99,255,0.15);
  --font-cn: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", "SF Mono", Consolas, monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-cn);
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a {
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--cyan);
}

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

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

ul, ol {
  list-style: none;
}

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

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

/* ===== Header / Navigation ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11,17,32,0.78);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--divider);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.site-header.scrolled {
  background: rgba(11,17,32,0.92);
  box-shadow: 0 4px 30px rgba(0,0,0,0.35);
}

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

.logo {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--text);
  white-space: nowrap;
}

.logo span {
  color: var(--primary);
  font-weight: 500;
  margin-left: 2px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-link {
  font-size: 15px;
  color: rgba(255,255,255,0.8);
  padding: 8px 0;
  position: relative;
  white-space: nowrap;
  transition: color 0.2s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
  border-radius: 2px;
}

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

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

.nav-link.active::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: rgba(255,255,255,0.85);
  border-radius: 2px;
  transition: all 0.25s ease;
}

.nav-toggle:hover span {
  background: var(--cyan);
}

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

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

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

/* ===== Breadcrumb ===== */
.breadcrumb {
  padding: 28px 0 0;
  font-size: 14px;
  color: var(--muted);
}

.breadcrumb .sep {
  margin: 0 10px;
  color: var(--disabled);
  font-family: var(--font-mono);
}

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

/* ===== Hero section ===== */
.category-hero {
  position: relative;
  padding: 60px 0 88px;
  background: linear-gradient(135deg, rgba(14,42,111,0.55), rgba(11,17,32,0.92)), url('/assets/images/backpic/back-2.webp') no-repeat center center / cover;
  border-bottom: 1px solid var(--divider);
  overflow: hidden;
}

.category-hero::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -80px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(46,99,255,0.25), transparent 70%);
  pointer-events: none;
}

.category-hero::after {
  content: "";
  position: absolute;
  bottom: -80px;
  left: 10%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(25,211,218,0.12), transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 13px;
  color: var(--cyan);
  margin-bottom: 24px;
  letter-spacing: 0.5px;
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(25,211,218,0.8);
}

.category-hero h1 {
  font-size: 44px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.5px;
  max-width: 760px;
  margin-bottom: 20px;
  color: var(--text);
}

.category-hero h1 .highlight {
  color: var(--cyan);
}

.category-hero .hero-desc {
  font-size: 17px;
  color: var(--muted);
  max-width: 660px;
  line-height: 1.8;
  margin-bottom: 36px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  padding: 13px 28px;
  cursor: pointer;
  transition: all 0.2s ease;
  letter-spacing: 0.3px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #1A47C9);
  color: #fff;
  box-shadow: 0 0 24px rgba(46,99,255,0.45);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 32px rgba(46,99,255,0.6);
  filter: brightness(1.08);
  color: #fff;
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 0 16px rgba(46,99,255,0.4);
}

.btn-outline {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--text);
  backdrop-filter: blur(8px);
}

.btn-outline:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: 0 0 18px rgba(25,211,218,0.15);
  transform: translateY(-1px);
}

.btn-outline:active {
  transform: translateY(0);
}

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

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 48px;
}

.section-head .tag {
  display: inline-block;
  font-size: 13px;
  color: var(--cyan);
  background: rgba(25,211,218,0.08);
  border: 1px solid rgba(25,211,218,0.2);
  padding: 4px 14px;
  border-radius: 999px;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

.section-head h2 {
  font-size: 30px;
  font-weight: 650;
  line-height: 1.3;
  color: var(--text);
}

.section-head .sub {
  font-size: 15px;
  color: var(--muted);
  max-width: 560px;
  line-height: 1.7;
}

/* ===== Steps / Flow ===== */
.steps-section {
  background: var(--bg-2);
  border-bottom: 1px solid var(--divider);
  position: relative;
  overflow: hidden;
}

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

.step-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  position: relative;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

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

.step-num {
  font-family: var(--font-mono);
  font-size: 42px;
  font-weight: 700;
  color: rgba(255,255,255,0.14);
  line-height: 1;
  margin-bottom: 20px;
  display: block;
  transition: color 0.2s ease;
}

.step-card:hover .step-num {
  color: rgba(25,211,218,0.35);
}

.step-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
}

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

.step-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 24px;
  bottom: 24px;
  width: 2px;
  background: linear-gradient(180deg, var(--primary), transparent);
  border-radius: 2px;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.step-card:hover::before {
  opacity: 1;
}

/* ===== Feature Cards ===== */
.feature-section {
  background: var(--bg);
  border-bottom: 1px solid var(--divider);
}

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

.feature-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-2);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

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

.feature-card .cover {
  position: relative;
  height: 240px;
  overflow: hidden;
}

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

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

.feature-card .cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(11,17,32,0.85));
}

.feature-card .card-body {
  padding: 28px;
  position: relative;
  margin-top: -60px;
}

.feature-card .card-tag {
  display: inline-block;
  font-size: 12px;
  color: var(--cyan);
  background: rgba(11,17,32,0.8);
  border: 1px solid rgba(25,211,218,0.3);
  padding: 4px 12px;
  border-radius: 999px;
  letter-spacing: 0.5px;
  backdrop-filter: blur(8px);
  margin-bottom: 14px;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.7;
}

.feature-card .card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  margin-top: 18px;
  transition: color 0.2s ease, gap 0.2s ease;
}

.feature-card .card-link:hover {
  color: var(--cyan);
  gap: 10px;
}

.feature-card .card-link .arrow {
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
}

/* ===== Checklist / Notes ===== */
.notes-section {
  background: var(--bg-2);
  border-bottom: 1px solid var(--divider);
}

.notes-layout {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}

.notes-copy h2 {
  font-size: 30px;
  font-weight: 650;
  line-height: 1.3;
  margin-bottom: 18px;
}

.notes-copy > p {
  font-size: 16px;
  color: var(--muted);
  margin-bottom: 30px;
  line-height: 1.8;
}

.notes-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.notes-item {
  display: flex;
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid var(--divider);
  transition: background 0.2s ease;
}

.notes-item:last-child {
  border-bottom: none;
}

.notes-item:hover {
  background: rgba(255,255,255,0.02);
}

.notes-item .idx {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--cyan);
  flex-shrink: 0;
  padding-top: 4px;
  min-width: 32px;
}

.notes-item h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.notes-item p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

.notes-visual {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.notes-visual img {
  width: 100%;
  height: 460px;
  object-fit: cover;
}

.notes-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(14,42,111,0.3), rgba(11,17,32,0.7));
  pointer-events: none;
}

.notes-visual .visual-caption {
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 20px;
  background: rgba(11,17,32,0.72);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 20px;
  z-index: 1;
}

.visual-caption h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

.visual-caption p {
  font-size: 13px;
  color: var(--muted);
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--bg);
  border-bottom: 1px solid var(--divider);
}

.faq-wrap {
  max-width: 840px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--divider);
}

.faq-item:first-child {
  border-top: 1px solid var(--divider);
}

.faq-question {
  width: 100%;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 4px;
  cursor: pointer;
  text-align: left;
  color: rgba(255,255,255,0.9);
  font-size: 16px;
  font-weight: 500;
  transition: color 0.2s ease;
}

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

.faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: var(--muted);
  transition: background 0.25s ease;
}

.faq-icon::before {
  width: 12px;
  height: 1.5px;
}

.faq-icon::after {
  width: 1.5px;
  height: 12px;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  border-color: var(--primary);
}

.faq-item.active .faq-icon::before,
.faq-item.active .faq-icon::after {
  background: var(--primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease, padding 0.25s ease;
  padding: 0 4px 0 20px;
  border-left: 2px solid var(--primary);
  margin-left: 4px;
}

.faq-answer-inner {
  padding: 0 0 20px;
  font-size: 15px;
  color: var(--muted);
  line-height: 1.8;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 4px 4px 4px 20px;
}

/* ===== CTA ===== */
.cta-section {
  padding: 80px 0;
  position: relative;
  background: linear-gradient(135deg, rgba(14,42,111,0.4), rgba(11,17,32,0.9)), url('/assets/images/backpic/back-3.webp') no-repeat center center / cover;
}

.cta-inner {
  position: relative;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.cta-inner h2 {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 16px;
}

.cta-inner p {
  font-size: 16px;
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 32px;
}

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

/* ===== Footer ===== */
.site-footer {
  background: #080E1A;
  border-top: 1px solid var(--divider);
  padding: 64px 0 0;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--divider);
}

.footer-brand .logo {
  font-size: 22px;
  display: inline-block;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.8;
  max-width: 300px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 18px;
  letter-spacing: 0.3px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  font-size: 14px;
  color: var(--muted);
  transition: color 0.2s ease;
}

.footer-col ul li a:hover {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.footer-contact li {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 24px 0;
  font-size: 13px;
  color: var(--disabled);
}

.footer-bottom span {
  font-family: var(--font-mono);
  letter-spacing: 0.3px;
}

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

  .notes-layout {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .notes-visual img {
    height: 360px;
  }

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

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

  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(11,17,32,0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 24px 32px;
    gap: 4px;
    border-bottom: 1px solid var(--divider);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.25s ease;
  }

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

  .nav-link {
    font-size: 18px;
    padding: 14px 0;
    width: 100%;
    border-bottom: 1px solid var(--divider);
  }

  .nav-link:last-child {
    border-bottom: none;
  }

  .nav-link::after {
    display: none;
  }

  .category-hero {
    padding: 40px 0 64px;
  }

  .category-hero h1 {
    font-size: 30px;
  }

  .category-hero .hero-desc {
    font-size: 15px;
  }

  .section {
    padding: 48px 0;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 32px;
  }

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

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

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

  .feature-card .cover {
    height: 200px;
  }

  .notes-copy h2 {
    font-size: 24px;
  }

  .notes-visual img {
    height: 280px;
  }

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

  .cta-inner h2 {
    font-size: 26px;
  }

  .cta-actions {
    flex-direction: column;
    width: 100%;
  }

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

  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-bottom: 36px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }

  .header-wrap {
    gap: 12px;
  }

  .logo {
    font-size: 17px;
  }

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

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

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

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

  .step-num {
    font-size: 34px;
  }

  .feature-card .card-body {
    padding: 20px;
  }

  .feature-card h3 {
    font-size: 18px;
  }

  .notes-item {
    gap: 12px;
  }

  .notes-item .idx {
    min-width: 24px;
  }

  .faq-question {
    font-size: 15px;
    padding: 16px 0;
  }

  .faq-answer-inner {
    font-size: 14px;
  }

  .footer-brand .logo {
    font-size: 19px;
  }
}

/* roulang page: article */
:root {
  --primary: #2E63FF;
  --primary-deep: #0E2A6F;
  --accent: #19D3DA;
  --amber: #F5A524;
  --bg-main: #0B1120;
  --bg-sub: #111A2E;
  --glass-bg: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.10);
  --border-hover: rgba(46, 99, 255, 0.55);
  --divider: rgba(255, 255, 255, 0.08);
  --text-main: #F1F5FB;
  --text-muted: #94A3C0;
  --text-disabled: #5C6B8A;
  --radius-card: 16px;
  --radius-btn: 10px;
  --radius-tag: 999px;
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.30);
  --shadow-hover: 0 8px 40px rgba(46, 99, 255, 0.15);
  --glow-primary: 0 0 24px rgba(46, 99, 255, 0.45);
  --font-cn: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", "SF Mono", Consolas, monospace;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-cn);
  background: var(--bg-main);
  color: var(--text-main);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; }

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

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 17, 32, 0.82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--divider);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}
.site-header.scrolled {
  background: rgba(11, 17, 32, 0.95);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.35);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text-main);
  white-space: nowrap;
}
.logo span {
  color: var(--primary);
  font-weight: 500;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-link {
  position: relative;
  color: rgba(241, 245, 251, 0.78);
  font-size: 15px;
  line-height: 1;
  padding: 6px 2px;
  transition: color 0.2s ease;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent 80%);
  border-radius: 2px;
  opacity: 0;
  transform: scaleX(0.6);
  transition: opacity 0.25s ease, transform 0.25s ease;
}
.nav-link:hover { color: var(--accent); }
.nav-link.active { color: var(--text-main); }
.nav-link.active::after {
  opacity: 1;
  transform: scaleX(1);
}
.nav-toggle {
  display: none;
  background: none;
  border: 0;
  width: 40px;
  height: 40px;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== Post Hero ===== */
.post-hero {
  position: relative;
  padding: 64px 0 48px;
  background:
    linear-gradient(135deg, rgba(11, 17, 32, 0.94), rgba(17, 26, 46, 0.88)),
    url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
  border-bottom: 1px solid var(--divider);
}
.post-hero-inner {
  max-width: 900px;
  margin: 0 auto;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 24px;
}
.breadcrumb a { color: var(--text-muted); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep {
  margin: 0 10px;
  color: var(--text-disabled);
}
.breadcrumb .current {
  color: rgba(241, 245, 251, 0.9);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 420px;
}
.post-title {
  font-size: 44px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-main);
  margin-bottom: 20px;
  letter-spacing: 0.01em;
}
.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 28px;
  align-items: center;
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 14px;
}
.meta-item svg {
  width: 14px;
  height: 14px;
  stroke: var(--accent);
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ===== Post Content ===== */
.post-content {
  max-width: 720px;
  margin: 0 auto;
  padding: 56px 24px 24px;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(241, 245, 251, 0.88);
}
.post-content > * {
  margin-bottom: 1.5em;
}
.post-content p {
  max-width: 68ch;
}
.post-content h2 {
  font-size: 24px;
  font-weight: 650;
  color: var(--text-main);
  margin: 40px 0 16px;
  line-height: 1.4;
  padding-left: 14px;
  border-left: 3px solid var(--accent);
}
.post-content h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-main);
  margin: 32px 0 12px;
}
.post-content h4 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-main);
  margin: 24px 0 10px;
}
.post-content a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s;
}
.post-content a:hover {
  color: #5de3e8;
}
.post-content blockquote {
  margin: 24px 0;
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.04);
  border-left: 3px solid var(--primary);
  border-radius: 0 10px 10px 0;
  color: var(--text-muted);
}
.post-content pre {
  background: #0A0F1C;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 20px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.7;
}
.post-content code {
  font-family: var(--font-mono);
  font-size: 14px;
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 6px;
  border-radius: 5px;
}
.post-content pre code {
  background: none;
  padding: 0;
  color: #9ee7ea;
}
.post-content img {
  border-radius: 12px;
  border: 1px solid var(--border);
  margin: 24px 0;
}
.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 15px;
}
.post-content th,
.post-content td {
  border: 1px solid var(--divider);
  padding: 10px 14px;
  text-align: left;
}
.post-content th {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-main);
  font-weight: 600;
}
.post-content tr:nth-child(even) td {
  background: rgba(255, 255, 255, 0.03);
}
.post-content ul,
.post-content ol {
  padding-left: 1.5em;
  margin-bottom: 1.5em;
}
.post-content li {
  margin-bottom: 0.5em;
}

/* ===== Not Found ===== */
.not-found-section {
  padding: 60px 0 80px;
}
.not-found {
  max-width: 560px;
  margin: 0 auto;
  padding: 64px 40px;
  text-align: center;
  background: var(--glass-bg);
  border: 1px dashed rgba(255, 255, 255, 0.18);
  border-radius: 20px;
}
.not-found-mark {
  width: 64px;
  height: 64px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
  background: rgba(25, 211, 218, 0.12);
  border: 1px solid rgba(25, 211, 218, 0.35);
  border-radius: 50%;
}
.not-found h2 {
  font-size: 24px;
  color: var(--text-main);
  margin-bottom: 12px;
}
.not-found p {
  color: var(--text-muted);
  font-size: 15px;
  margin-bottom: 28px;
}

/* ===== Tags ===== */
.post-tags-section {
  padding: 24px 0 48px;
}
.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}
.tag {
  display: inline-block;
  padding: 7px 18px;
  font-size: 13px;
  color: var(--text-muted);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: color 0.2s, border-color 0.2s;
}
.tag:hover {
  color: var(--accent);
  border-color: rgba(25, 211, 218, 0.5);
}
.tag-solid {
  color: #0B1120;
  background: linear-gradient(135deg, var(--accent), #5de3e8);
  border-color: transparent;
  font-weight: 600;
}

/* ===== Related ===== */
.related-section {
  padding: 48px 0;
  background: var(--bg-sub);
  border-top: 1px solid var(--divider);
  border-bottom: 1px solid var(--divider);
}
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
}
.section-head h2 {
  font-size: 24px;
  font-weight: 650;
  color: var(--text-main);
}
.text-link {
  color: var(--text-muted);
  font-size: 14px;
  transition: color 0.2s;
}
.text-link:hover {
  color: var(--accent);
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.related-card {
  display: flex;
  flex-direction: column;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.related-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-hover);
}
.related-img {
  aspect-ratio: 16 / 10;
  overflow: hidden;
}
.related-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}
.related-card:hover .related-img img {
  transform: scale(1.04);
}
.related-body {
  padding: 20px 22px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.related-body h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.5;
  margin-bottom: 8px;
  transition: color 0.2s;
}
.related-card:hover .related-body h3 {
  color: var(--accent);
}
.related-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
  flex: 1;
}
.related-link {
  font-size: 14px;
  color: var(--accent);
  font-weight: 500;
  transition: letter-spacing 0.2s ease;
}
.related-card:hover .related-link {
  letter-spacing: 0.04em;
}

/* ===== CTA ===== */
.article-cta {
  padding: 64px 0 80px;
}
.cta-box {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 40px;
  text-align: center;
  background: linear-gradient(135deg, rgba(46, 99, 255, 0.12), rgba(25, 211, 218, 0.06));
  border: 1px solid rgba(46, 99, 255, 0.4);
  border-radius: 20px;
  box-shadow: 0 8px 40px rgba(46, 99, 255, 0.12);
}
.cta-box h2 {
  font-size: 24px;
  font-weight: 650;
  color: var(--text-main);
  margin-bottom: 12px;
}
.cta-box p {
  color: var(--text-muted);
  margin-bottom: 24px;
  font-size: 15px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 30px;
  font-size: 15px;
  font-weight: 500;
  border-radius: 10px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background 0.2s ease, box-shadow 0.2s ease, transform 0.1s ease;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-deep));
  color: #fff;
  box-shadow: var(--glow-primary);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #3a70ff, #12327f);
  box-shadow: 0 0 32px rgba(46, 99, 255, 0.6);
  transform: translateY(-1px);
}
.btn-primary:active {
  transform: translateY(1px);
}
.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ===== Footer ===== */
.site-footer {
  background: #080D18;
  border-top: 1px solid var(--divider);
  padding: 56px 0 24px;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--divider);
}
.footer-brand .logo {
  font-size: 20px;
  margin-bottom: 12px;
  display: inline-block;
}
.footer-brand p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.7;
  max-width: 280px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 16px;
}
.footer-col ul {
  list-style: none;
}
.footer-col li {
  margin-bottom: 10px;
}
.footer-col a {
  color: var(--text-muted);
  font-size: 14px;
  transition: color 0.2s;
}
.footer-col a:hover {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.footer-contact {
  color: var(--text-muted);
  font-size: 14px;
}
.footer-contact li {
  margin-bottom: 10px;
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 32px;
  justify-content: center;
  padding-top: 24px;
  color: var(--text-disabled);
  font-size: 13px;
}

/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
  .post-title {
    font-size: 36px;
  }
}

@media (max-width: 767px) {
  .container,
  .post-content {
    padding-left: 16px;
    padding-right: 16px;
  }
  .header-inner {
    height: 60px;
  }
  .main-nav {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(11, 17, 32, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--divider);
    padding: 12px 24px;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease;
    z-index: 99;
  }
  .main-nav.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  .main-nav .nav-link {
    padding: 14px 0;
    font-size: 16px;
    border-bottom: 1px solid var(--divider);
  }
  .main-nav .nav-link:last-child {
    border-bottom: 0;
  }
  .nav-link.active::after {
    width: 40px;
  }
  .nav-toggle {
    display: flex;
  }
  .post-hero {
    padding: 40px 0 32px;
  }
  .post-title {
    font-size: 30px;
    line-height: 1.3;
  }
  .post-meta {
    gap: 10px 16px;
  }
  .meta-item {
    padding: 4px 12px;
    font-size: 12px;
  }
  .post-content {
    padding-top: 40px;
    font-size: 15px;
  }
  .post-content h2 {
    font-size: 21px;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .section-head {
    margin-bottom: 20px;
  }
  .cta-box {
    padding: 36px 24px;
  }
  .cta-box h2 {
    font-size: 21px;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 8px;
  }
  .breadcrumb .current {
    max-width: 260px;
  }
}

@media (max-width: 520px) {
  .btn {
    width: 100%;
  }
  .post-title {
    font-size: 26px;
  }
  .breadcrumb {
    font-size: 13px;
  }
  .breadcrumb .current {
    max-width: 180px;
  }
}

/* roulang page: category2 */
:root {
  --primary: #2E63FF;
  --primary-dark: #0E2A6F;
  --cyan: #19D3DA;
  --amber: #F5A524;
  --bg-main: #0B1120;
  --bg-alt: #111A2E;
  --text-main: #F1F5FB;
  --text-muted: #94A3C0;
  --text-dim: #5C6B8A;
  --glass: rgba(255,255,255,0.06);
  --glass-strong: rgba(255,255,255,0.08);
  --border: rgba(255,255,255,0.10);
  --border-hover: rgba(46,99,255,0.55);
  --shadow-card: 0 4px 20px rgba(0,0,0,0.30);
  --shadow-hover: 0 8px 40px rgba(46,99,255,0.15);
  --radius-card: 16px;
  --radius-btn: 10px;
  --radius-tag: 999px;
  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", "SF Mono", Consolas, monospace;
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg-main);
  color: var(--text-main);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11,17,32,0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background .3s ease, box-shadow .3s ease;
}
.site-header.scrolled {
  background: rgba(8,13,24,0.92);
  box-shadow: 0 4px 30px rgba(0,0,0,0.35);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #fff;
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  white-space: nowrap;
}
.logo span {
  color: var(--cyan);
  font-weight: 400;
  font-size: 15px;
}
.main-nav {
  display: flex;
  gap: 36px;
  align-items: center;
}
.nav-link {
  font-size: 15px;
  color: rgba(255,255,255,0.78);
  padding: 8px 2px;
  position: relative;
  transition: color .2s ease;
}
.nav-link:hover { color: var(--cyan); }
.nav-link.active { color: #fff; }
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), transparent);
  border-radius: 2px;
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  width: 40px;
  height: 40px;
  cursor: pointer;
  border-radius: 8px;
  position: relative;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: #fff;
  margin: 5px auto;
  transition: transform .25s ease, opacity .25s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ===== Mobile Menu ===== */
.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(8,13,24,0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 99;
  padding: 40px 24px;
  flex-direction: column;
  gap: 12px;
}
.mobile-menu.show { display: flex; }
.mobile-menu a {
  font-size: 22px;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
  padding: 18px 12px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: color .2s;
}
.mobile-menu a:hover, .mobile-menu a.active { color: var(--cyan); }

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 88px 0 72px;
  background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(11,17,32,0.95) 0%, rgba(11,17,32,0.82) 55%, rgba(46,99,255,0.30) 100%);
}
.hero::after {
  content: "";
  position: absolute;
  top: -120px;
  right: -80px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(46,99,255,0.35), transparent 70%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-tag);
  padding: 6px 14px;
  font-size: 14px;
  color: var(--cyan);
  margin-bottom: 22px;
}
.hero-badge .pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--amber);
  animation: pulse 1.6s ease infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(245,165,36,0.5); }
  50% { box-shadow: 0 0 0 6px rgba(245,165,36,0); }
}
.hero h1 {
  font-size: 44px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: #fff;
}
.hero h1 .gradient-text {
  background: linear-gradient(90deg, var(--cyan), var(--primary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-sub {
  margin: 22px 0 34px;
  font-size: 17px;
  color: var(--text-muted);
  max-width: 520px;
  line-height: 1.8;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-btn);
  padding: 13px 28px;
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.btn svg { width: 16px; height: 16px; }
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 0 24px rgba(46,99,255,0.45);
}
.btn-primary:hover {
  box-shadow: 0 0 36px rgba(46,99,255,0.65);
  transform: translateY(-1px);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 0 20px rgba(46,99,255,0.40);
}
.btn-outline {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.25);
  color: #fff;
}
.btn-outline:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: 0 0 16px rgba(25,211,218,0.20);
}
.btn-amber {
  background: linear-gradient(135deg, var(--amber), #D9820D);
  color: #0B1120;
  box-shadow: 0 0 24px rgba(245,165,36,0.35);
}
.btn-amber:hover {
  box-shadow: 0 0 36px rgba(245,165,36,0.55);
  transform: translateY(-1px);
}
.btn:focus-visible, .nav-toggle:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ===== Hero Card / Countdown ===== */
.hero-card {
  background: var(--glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 20px;
  padding: 28px;
  position: relative;
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.hero-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(46,99,255,0.12), transparent 60%);
  pointer-events: none;
}
.hero-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 14px;
  border: 1px solid var(--border);
}
.live-tag {
  position: absolute;
  top: 44px;
  left: 44px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(11,17,32,0.75);
  border: 1px solid rgba(255,255,255,0.2);
  backdrop-filter: blur(8px);
  padding: 5px 12px;
  border-radius: var(--radius-tag);
  font-size: 13px;
  color: #fff;
  font-weight: 600;
}
.live-tag .dot {
  width: 6px;
  height: 6px;
  background: #FF4D4F;
  border-radius: 50%;
  animation: pulse 1.4s infinite;
}
.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin: 20px 0 14px;
  font-size: 14px;
  color: var(--text-muted);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  padding-bottom: 16px;
}
.card-meta span { display: inline-flex; align-items: center; gap: 6px; }
.card-meta svg { width: 14px; height: 14px; color: var(--cyan); }
.countdown-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 10px;
}
.countdown-box {
  display: flex;
  gap: 10px;
}
.countdown-item {
  flex: 1;
  background: rgba(0,0,0,0.30);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 10px;
  padding: 12px 6px;
  text-align: center;
}
.countdown-num {
  font-family: var(--font-mono);
  font-size: 34px;
  font-weight: 700;
  color: var(--cyan);
  text-shadow: 0 0 12px rgba(25,211,218,0.35);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}
.countdown-label-unit {
  font-size: 12px;
  color: var(--text-muted);
  display: block;
  margin-top: 2px;
}
.countdown-ended {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--amber);
  padding: 12px 0;
}
.countdown-ended a { color: var(--amber); text-decoration: underline; }

/* ===== Sections ===== */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }
.section-head {
  margin-bottom: 48px;
  max-width: 680px;
}
.section-head .eyebrow {
  font-size: 14px;
  color: var(--cyan);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 10px;
  font-family: var(--font-mono);
}
.section-head h2 {
  font-size: 30px;
  font-weight: 650;
  line-height: 1.3;
  color: #fff;
}
.section-head p {
  margin-top: 14px;
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.8;
}

/* ===== Schedule Timeline ===== */
.schedule-wrap {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: start;
}
.schedule-list {
  position: relative;
}
.schedule-item {
  display: grid;
  grid-template-columns: 116px 64px 1fr;
  gap: 20px;
  padding: 30px 0;
  border-bottom: 1px solid var(--border);
  transition: background .2s ease;
  border-radius: 8px;
}
.schedule-item:first-child { padding-top: 0; }
.schedule-item:hover {
  background: rgba(255,255,255,0.02);
}
.sched-date {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.5;
  padding-top: 4px;
}
.sched-num {
  font-family: var(--font-mono);
  font-size: 46px;
  font-weight: 700;
  line-height: 1;
  color: rgba(255,255,255,0.12);
  transition: color .2s ease;
}
.schedule-item:hover .sched-num { color: rgba(25,211,218,0.60); }
.sched-info h3 {
  font-size: 20px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 8px;
}
.sched-info p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 12px;
}
.sched-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border-radius: var(--radius-tag);
  padding: 4px 12px;
  font-size: 13px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: border-color .2s, color .2s;
}
.tag.cyan { border-color: rgba(25,211,218,0.30); color: var(--cyan); background: rgba(25,211,218,0.06); }
.tag.amber { border-color: rgba(245,165,36,0.30); color: var(--amber); background: rgba(245,165,36,0.06); }
.tag:hover { border-color: var(--border-hover); color: #fff; }

.schedule-notes {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px;
  position: sticky;
  top: 100px;
}
.schedule-notes h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 16px;
  color: #fff;
}
.schedule-notes ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.schedule-notes li {
  display: flex;
  gap: 12px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.7;
}
.schedule-notes li svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  color: var(--cyan);
  margin-top: 3px;
}

/* ===== Highlights ===== */
.highlight-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.highlight-card {
  display: flex;
  gap: 20px;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 24px;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.highlight-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-hover);
}
.highlight-card img {
  width: 120px;
  height: 120px;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid var(--border);
  flex-shrink: 0;
}
.highlight-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 8px;
  line-height: 1.4;
}
.highlight-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ===== Process Steps ===== */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.step {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  position: relative;
  transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.step:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.step-num {
  font-family: var(--font-mono);
  font-size: 42px;
  font-weight: 700;
  color: rgba(25,211,218,0.35);
  line-height: 1;
  display: block;
  margin-bottom: 18px;
}
.step h3 {
  font-size: 18px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 10px;
}
.step p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ===== Subscribe ===== */
.subscribe-card {
  background: linear-gradient(150deg, rgba(46,99,255,0.12), rgba(17,26,46,0.92) 60%);
  border: 1px solid rgba(46,99,255,0.35);
  border-radius: 24px;
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.subscribe-card::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(25,211,218,0.15), transparent 70%);
  pointer-events: none;
}
.subscribe-copy h2 {
  font-size: 28px;
  font-weight: 650;
  color: #fff;
  line-height: 1.3;
  margin-bottom: 12px;
}
.subscribe-copy p {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.8;
}
.subscribe-form-wrap {
  background: rgba(11,17,32,0.55);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
}
.subscribe-form {
  display: flex;
  gap: 12px;
}
.subscribe-form input {
  flex: 1;
  min-width: 0;
  background: rgba(0,0,0,0.35);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-btn);
  padding: 14px 16px;
  color: #fff;
  font-size: 15px;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.subscribe-form input::placeholder { color: var(--text-dim); }
.subscribe-form input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(46,99,255,0.25);
}
.subscribe-form .btn { white-space: nowrap; }
.privacy-note {
  margin-top: 12px;
  font-size: 13px;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 6px;
}
.privacy-note svg { width: 14px; height: 14px; color: var(--cyan); }
.subscribe-success {
  display: none;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(25,211,218,0.08);
  border: 1px solid rgba(25,211,218,0.25);
  color: var(--cyan);
  font-size: 15px;
}
.subscribe-success.show { display: flex; }
.subscribe-success svg { width: 22px; height: 22px; flex-shrink: 0; }

/* ===== FAQ ===== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-question {
  width: 100%;
  background: transparent;
  border: none;
  color: rgba(255,255,255,0.90);
  font-size: 16px;
  font-weight: 500;
  text-align: left;
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: color .2s;
}
.faq-question:hover { color: var(--cyan); }
.faq-icon {
  width: 26px;
  height: 26px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 50%;
  position: relative;
  flex-shrink: 0;
  transition: transform .25s ease, border-color .25s ease;
  margin-left: 16px;
}
.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: currentColor;
  border-radius: 2px;
}
.faq-icon::before { width: 12px; height: 1.5px; top: 50%; left: 50%; transform: translate(-50%, -50%); }
.faq-icon::after { width: 1.5px; height: 12px; top: 50%; left: 50%; transform: translate(-50%, -50%); }
.faq-item.open .faq-icon { transform: rotate(45deg); border-color: var(--cyan); color: var(--cyan); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
}
.faq-answer-inner {
  padding: 0 0 22px;
  border-left: 2px solid rgba(46,99,255,0.65);
  margin-left: 4px;
  padding-left: 20px;
}
.faq-answer-inner p {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.8;
}

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(145deg, var(--primary-dark), #0B1120 70%);
  border-radius: 24px;
  padding: 56px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  bottom: -60px;
  left: 50%;
  transform: translateX(-50%);
  width: 360px;
  height: 220px;
  background: radial-gradient(ellipse, rgba(25,211,218,0.18), transparent 70%);
  pointer-events: none;
}
.cta-section h2 {
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  line-height: 1.3;
  margin-bottom: 12px;
}
.cta-section p {
  color: var(--text-muted);
  font-size: 15px;
  max-width: 520px;
  margin: 0 auto 28px;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  position: relative;
}

/* ===== Footer ===== */
.site-footer {
  background: #080E1A;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 56px 0 0;
  margin-top: 80px;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.3fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-brand .logo { margin-bottom: 14px; }
.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  max-width: 280px;
  line-height: 1.7;
  margin-top: 12px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a {
  font-size: 14px;
  color: var(--text-muted);
  transition: color .2s;
}
.footer-col a:hover { color: #fff; text-decoration: underline; text-decoration-color: var(--cyan); text-underline-offset: 4px; }
.footer-contact li {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 10px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 22px 0;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero { padding: 64px 0 56px; }
  .hero h1 { font-size: 36px; }
  .hero-inner { gap: 36px; }
  .schedule-wrap { grid-template-columns: 1fr; }
  .schedule-notes { position: static; }
  .steps { gap: 16px; }
  .step { padding: 24px 20px; }
  .highlight-grid { grid-template-columns: 1fr; }
  .subscribe-card { grid-template-columns: 1fr; padding: 36px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 767px) {
  .container { padding: 0 18px; }
  .main-nav { display: none; }
  .nav-toggle { display: block; }
  .hero { padding: 48px 0 40px; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero h1 { font-size: 30px; }
  .hero-sub { font-size: 16px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .hero-card { margin-top: 8px; }
  .hero-card img { height: 170px; }
  .section { padding: 48px 0; }
  .section-head h2 { font-size: 24px; }
  .section-head { margin-bottom: 32px; }
  .schedule-item { grid-template-columns: 1fr 56px; gap: 12px; }
  .sched-date { grid-column: 1 / -1; }
  .sched-num { grid-column: 2; grid-row: 1; text-align: right; }
  .sched-info { grid-column: 1 / -1; }
  .steps { grid-template-columns: 1fr; }
  .highlight-card { flex-direction: column; }
  .highlight-card img { width: 100%; height: auto; }
  .subscribe-card { padding: 28px 20px; }
  .subscribe-form { flex-direction: column; }
  .subscribe-form .btn { width: 100%; }
  .countdown-num { font-size: 28px; }
  .countdown-box { gap: 6px; }
  .countdown-item { padding: 10px 4px; }
  .cta-section { padding: 40px 20px; }
  .cta-actions { flex-direction: column; }
  .cta-actions .btn { width: 100%; }
  .footer-top { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; gap: 6px; }
}

/* roulang page: category3 */
:root {
  --primary: #2E63FF;
  --primary-dark: #0E2A6F;
  --cyan: #19D3DA;
  --amber: #F5A524;
  --bg: #0B1120;
  --bg-alt: #111A2E;
  --card-bg: rgba(255, 255, 255, 0.06);
  --card-bg-strong: rgba(255, 255, 255, 0.08);
  --border: rgba(255, 255, 255, 0.10);
  --border-hover: rgba(46, 99, 255, 0.55);
  --text: #F1F5FB;
  --text-secondary: #94A3C0;
  --text-muted: #5C6B8A;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-pill: 999px;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.30);
  --shadow-hover: 0 8px 40px rgba(46, 99, 255, 0.15);
  --glow-primary: 0 0 24px rgba(46, 99, 255, 0.45);
  --glow-cyan: 0 0 12px rgba(25, 211, 218, 0.35);
  --font-cn: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", "SF Mono", Consolas, monospace;
}
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    radial-gradient(ellipse at 75% 15%, rgba(46, 99, 255, 0.10) 0%, transparent 60%),
    radial-gradient(ellipse at 10% 85%, rgba(25, 211, 218, 0.05) 0%, transparent 50%),
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: auto, auto, 32px 32px, 32px 32px;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
a {
  color: var(--text);
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover {
  color: var(--cyan);
}
img {
  max-width: 100%;
  display: block;
}
button, input {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}
ul, ol {
  list-style: none;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}
.section {
  padding: 80px 0;
}
.section-head {
  margin-bottom: 48px;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 16px;
  border: 1px solid rgba(25, 211, 218, 0.30);
  border-radius: var(--radius-pill);
  background: rgba(25, 211, 218, 0.06);
  margin-bottom: 16px;
}
.section-tag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: var(--glow-cyan);
}
.section-title {
  font-size: 30px;
  font-weight: 650;
  line-height: 1.3;
  letter-spacing: -0.02em;
}
.section-sub {
  color: var(--text-secondary);
  font-size: 16px;
  max-width: 640px;
  margin-top: 12px;
}
.breadcrumb {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.breadcrumb a {
  color: var(--text-secondary);
  transition: color 0.2s ease;
}
.breadcrumb a:hover {
  color: var(--cyan);
}
.breadcrumb .sep {
  color: var(--text-muted);
  font-size: 12px;
}
.breadcrumb .current {
  color: #fff;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  line-height: 1.4;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, #3B6FFF 0%, #1D3FBF 100%);
  color: #fff;
  box-shadow: var(--glow-primary);
}
.btn-primary:hover {
  color: #fff;
  filter: brightness(1.08);
  box-shadow: 0 0 32px rgba(46, 99, 255, 0.60);
  transform: translateY(-1px);
}
.btn-primary:active {
  transform: translateY(0);
  filter: brightness(0.95);
}
.btn-outline {
  border: 1px solid var(--border);
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}
.btn-outline:hover {
  border-color: var(--border-hover);
  color: var(--cyan);
  background: rgba(46, 99, 255, 0.08);
  transform: translateY(-1px);
}
.btn-outline:active {
  transform: translateY(0);
}
.btn-amber {
  background: linear-gradient(135deg, #F5A524 0%, #D9821B 100%);
  color: #0B1120;
  box-shadow: 0 0 24px rgba(245, 165, 36, 0.35);
}
.btn-amber:hover {
  color: #0B1120;
  filter: brightness(1.06);
  box-shadow: 0 0 32px rgba(245, 165, 36, 0.50);
  transform: translateY(-1px);
}
:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(11, 17, 32, 0.65);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}
.site-header.scrolled {
  background: rgba(11, 17, 32, 0.88);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.35);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 32px;
}
.logo {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #fff;
  white-space: nowrap;
  display: flex;
  align-items: baseline;
  gap: 2px;
}
.logo span {
  font-weight: 500;
  font-size: 15px;
  color: var(--cyan);
  letter-spacing: 0;
}
.logo:hover {
  color: #fff;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-link {
  position: relative;
  font-size: 15px;
  color: rgba(241, 245, 251, 0.75);
  font-weight: 500;
  padding: 8px 2px;
  transition: color 0.2s ease;
}
.nav-link:hover {
  color: var(--text);
}
.nav-link.active {
  color: #fff;
}
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--cyan), transparent);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
}
.nav-toggle span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.nav-toggle.open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}
.hero-section {
  position: relative;
  padding: 160px 0 80px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.24;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 17, 32, 0.50) 0%, var(--bg) 100%);
}
.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
}
.hero-left .breadcrumb {
  margin-bottom: 20px;
}
.hero-title {
  font-size: 44px;
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}
.hero-title .accent {
  color: var(--cyan);
  font-weight: 700;
}
.hero-desc {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 540px;
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-note {
  margin-top: 24px;
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}
.hero-note::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: var(--glow-cyan);
}
.hero-right {
  position: relative;
}
.hero-card {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.hero-card img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}
.hero-card-info {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 16px;
  padding: 20px 24px;
  border-radius: 14px;
  background: rgba(11, 17, 32, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.10);
}
.hero-card-info h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}
.hero-card-info p {
  font-size: 13px;
  color: var(--text-secondary);
}
.hero-card-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: rgba(11, 17, 32, 0.70);
  border: 1px solid rgba(245, 165, 36, 0.40);
  color: var(--amber);
  font-size: 12px;
  font-weight: 600;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.stats-section {
  padding: 40px 0;
  border-bottom: 1px solid var(--border);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-item {
  text-align: center;
  padding: 32px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card-bg);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.stat-item:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.stat-num {
  font-family: var(--font-mono);
  font-size: 42px;
  font-weight: 700;
  color: var(--cyan);
  line-height: 1.2;
  text-shadow: var(--glow-cyan);
  display: block;
}
.stat-label {
  margin-top: 8px;
  font-size: 14px;
  color: var(--text-secondary);
}
.featured-section {
  padding: 80px 0 40px;
}
.featured-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
  align-items: stretch;
}
.featured-main {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--card-bg);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.featured-main:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-hover);
}
.featured-main img {
  width: 100%;
  height: 280px;
  object-fit: cover;
}
.featured-main-body {
  padding: 28px;
}
.featured-main-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--cyan);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(25, 211, 218, 0.30);
  background: rgba(25, 211, 218, 0.06);
  margin-bottom: 14px;
}
.featured-main-body h3 {
  font-size: 22px;
  font-weight: 650;
  line-height: 1.4;
  margin-bottom: 12px;
}
.featured-main-body p {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 16px;
}
.featured-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}
.featured-side {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.featured-card {
  display: flex;
  gap: 18px;
  padding: 20px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card-bg);
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  align-items: flex-start;
}
.featured-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.featured-card .num {
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 700;
  color: rgba(25, 211, 218, 0.45);
  line-height: 1;
  min-width: 44px;
}
.featured-card h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
  line-height: 1.5;
}
.featured-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}
.matrix-section {
  padding: 80px 0;
}
.matrix-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.matrix-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--card-bg);
  min-height: 260px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.matrix-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.matrix-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.45;
  transition: opacity 0.3s ease, transform 0.4s ease;
}
.matrix-card:hover img {
  opacity: 0.30;
  transform: scale(1.05);
}
.matrix-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 17, 32, 0.10) 0%, rgba(11, 17, 32, 0.85) 100%);
}
.matrix-card-body {
  position: relative;
  z-index: 1;
  padding: 24px;
}
.matrix-card-body h3 {
  font-size: 18px;
  font-weight: 650;
  margin-bottom: 6px;
}
.matrix-card-body p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}
.matrix-count {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 1;
  font-family: var(--font-mono);
  font-size: 14px;
  color: rgba(241, 245, 251, 0.60);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(11, 17, 32, 0.50);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.timeline-section {
  padding: 80px 0;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.timeline-wrap {
  position: relative;
  max-width: 820px;
  margin: 0 auto;
}
.timeline-wrap::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--primary), transparent 90%);
}
.timeline-item {
  position: relative;
  padding-left: 48px;
  padding-bottom: 40px;
}
.timeline-item:last-child {
  padding-bottom: 0;
}
.timeline-item::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: var(--glow-cyan);
  border: 2px solid var(--bg-alt);
}
.timeline-date {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--cyan);
  font-weight: 600;
  margin-bottom: 6px;
}
.timeline-item h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 6px;
  line-height: 1.5;
}
.timeline-item p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}
.channel-section {
  padding: 80px 0;
}
.channel-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.channel-card {
  padding: 32px 28px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card-bg);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.channel-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-hover);
}
.channel-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(46, 99, 255, 0.15);
  border: 1px solid rgba(46, 99, 255, 0.30);
  margin-bottom: 20px;
  color: var(--cyan);
}
.channel-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
}
.channel-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}
.cta-section {
  padding: 80px 0;
}
.cta-entries {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 48px;
}
.cta-entry-card {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 36px 40px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(135deg, rgba(46, 99, 255, 0.10) 0%, rgba(255, 255, 255, 0.04) 100%);
  overflow: hidden;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.cta-entry-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.cta-entry-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--cyan), var(--primary));
}
.cta-entry-text h3 {
  font-size: 20px;
  font-weight: 650;
  margin-bottom: 6px;
}
.cta-entry-text p {
  font-size: 14px;
  color: var(--text-secondary);
}
.cta-entry-arrow {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  color: var(--cyan);
  transition: transform 0.2s ease, background 0.2s ease;
  flex-shrink: 0;
}
.cta-entry-card:hover .cta-entry-arrow {
  transform: translateX(4px);
  background: rgba(46, 99, 255, 0.12);
}
.subscribe-box {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  text-align: center;
}
.subscribe-box h3 {
  font-size: 26px;
  font-weight: 650;
  margin-bottom: 12px;
}
.subscribe-box > p {
  color: var(--text-secondary);
  font-size: 15px;
  margin-bottom: 28px;
}
.subscribe-form {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}
.subscribe-form input[type="email"] {
  flex: 1 1 280px;
  padding: 13px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: rgba(11, 17, 32, 0.60);
  color: var(--text);
  font-size: 15px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.subscribe-form input[type="email"]::placeholder {
  color: var(--text-muted);
  font-size: 14px;
}
.subscribe-form input[type="email"]:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(46, 99, 255, 0.30);
}
.privacy-note {
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-muted);
}
.subscribe-success {
  display: none;
  align-items: center;
  gap: 10px;
  justify-content: center;
  color: var(--cyan);
  font-size: 15px;
  padding: 12px 0;
}
.subscribe-success.show {
  display: flex;
}
.faq-section {
  padding: 80px 0;
  border-top: 1px solid var(--border);
}
.faq-wrap {
  max-width: 760px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item:first-child {
  border-top: 1px solid var(--border);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  padding: 20px 4px;
  font-size: 16px;
  font-weight: 500;
  color: rgba(241, 245, 251, 0.90);
  cursor: pointer;
  text-align: left;
  transition: color 0.2s ease;
  min-height: 48px;
}
.faq-question:hover {
  color: var(--cyan);
}
.faq-question .icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--text-secondary);
  transition: transform 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  font-weight: 400;
  line-height: 1;
}
.faq-item.open .faq-question .icon {
  transform: rotate(45deg);
  border-color: var(--cyan);
  color: var(--cyan);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}
.faq-answer-inner {
  padding: 0 32px 20px 4px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.8;
  border-left: 2px solid var(--primary);
  padding-left: 16px;
  margin-left: 4px;
}
.site-footer {
  background: #080E1A;
  border-top: 1px solid var(--border);
  padding: 64px 0 32px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border);
}
.footer-brand p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.8;
  margin-top: 12px;
  max-width: 300px;
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul a {
  color: var(--text-secondary);
  font-size: 14px;
  transition: color 0.2s ease;
}
.footer-col ul a:hover {
  color: var(--cyan);
}
.footer-contact li {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 10px;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
  font-size: 13px;
  color: var(--text-muted);
}
@media (max-width: 1024px) {
  .container {
    padding: 0 24px;
  }
  .hero-content {
    gap: 40px;
    grid-template-columns: 1fr;
  }
  .hero-card img {
    height: 320px;
  }
  .featured-grid {
    grid-template-columns: 1fr;
  }
  .matrix-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .channel-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}
@media (max-width: 767px) {
  .section {
    padding: 48px 0;
  }
  .hero-section {
    padding: 120px 0 48px;
  }
  .hero-title {
    font-size: 30px;
  }
  .hero-card img {
    height: 240px;
  }
  .section-title {
    font-size: 24px;
  }
  .header-inner {
    height: 60px;
  }
  .main-nav {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: rgba(11, 17, 32, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px 20px;
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
    z-index: 99;
  }
  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .main-nav .nav-link {
    font-size: 18px;
    padding: 14px 0;
    width: 100%;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }
  .main-nav .nav-link:last-child {
    border-bottom: none;
  }
  .nav-link.active::after {
    left: 0;
    transform: none;
    width: 24px;
  }
  .nav-toggle {
    display: flex;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .stat-num {
    font-size: 30px;
  }
  .matrix-grid {
    grid-template-columns: 1fr;
  }
  .channel-grid {
    grid-template-columns: 1fr;
  }
  .cta-entries {
    grid-template-columns: 1fr;
  }
  .cta-entry-card {
    padding: 28px 24px;
  }
  .subscribe-box {
    padding: 32px 20px;
  }
  .subscribe-form input[type="email"] {
    flex-basis: 100%;
  }
  .subscribe-form .btn {
    width: 100%;
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
  .timeline-item {
    padding-left: 36px;
  }
  .section-head {
    margin-bottom: 32px;
  }
}
@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .featured-main img {
    height: 200px;
  }
  .featured-main-body {
    padding: 20px;
  }
  .matrix-card {
    min-height: 220px;
  }
  .subscribe-form {
    flex-direction: column;
  }
  .subscribe-form .btn {
    width: 100%;
  }
  .logo {
    font-size: 18px;
  }
  .logo span {
    font-size: 14px;
  }
}