/* roulang page: index */
/* ========== 设计变量 ========== */
:root {
  --bg: #0A0F1E;
  --bg-deep: #070B14;
  --bg-card: rgba(255,255,255,0.04);
  --bg-hover: rgba(255,255,255,0.08);
  --border: rgba(255,255,255,0.08);
  --border-hover: rgba(61,159,255,0.45);
  --primary: #3D9FFF;
  --accent: #00E0C6;
  --cta: #FF6B35;
  --danger: #FF3B30;
  --text: #E8EEF9;
  --text-2: #94A3B8;
  --text-3: #5B6B80;
  --gradient: linear-gradient(135deg, #3D9FFF 0%, #00E0C6 100%);
  --r-card: 16px;
  --r-btn: 10px;
  --r-input: 8px;
  --r-tag: 999px;
  --shadow-card: 0 8px 32px rgba(0,0,0,0.25);
  --shadow-hover: 0 16px 48px rgba(0,0,0,0.4);
  --glow-primary: 0 0 20px rgba(61,159,255,0.35);
  --glow-primary-hover: 0 0 32px rgba(61,159,255,0.55);
  --glow-accent: 0 0 12px rgba(0,224,198,0.5);
  --gap: 80px;
  --font: "PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .25s ease; }
a:hover { color: #6FB7FF; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; }

/* ========== 容器 ========== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; position: relative; }
.section-head { margin-bottom: 48px; }
.section-head h2 {
  font-size: clamp(24px, 2.6vw, 32px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  position: relative;
  display: inline-block;
}
.section-head h2::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  border-radius: 4px;
  background: var(--gradient);
  margin-top: 10px;
  box-shadow: var(--glow-primary);
}
.section-head p {
  color: var(--text-2);
  font-size: 15px;
  margin-top: 10px;
}
.section-head.center { text-align: center; }
.section-head.center h2::after { margin-left: auto; margin-right: auto; }

/* ========== 导航 ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 60px;
  z-index: 1000;
  background: rgba(10,15,30,0.55);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: background .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.site-header.scrolled {
  background: rgba(10,15,30,0.92);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 4px 24px rgba(0,0,0,0.3);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-left { display: flex; align-items: center; gap: 32px; }
.nav-right { display: flex; align-items: center; gap: 14px; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 15px;
  box-shadow: 0 0 16px rgba(61,159,255,0.45);
  transition: transform .25s ease;
}
.logo:hover .logo-mark { transform: scale(1.06); }
.logo-text { font-size: 20px; font-weight: 800; color: var(--text); letter-spacing: 1px; }
.main-nav { display: flex; align-items: center; gap: 4px; }
.nav-link {
  display: inline-block;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-2);
  border-radius: var(--r-btn);
  transition: color .25s ease, background .25s ease;
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--gradient);
  box-shadow: var(--glow-primary);
  transition: width .3s ease;
}
.nav-link:hover { color: var(--text); }
.nav-link:hover::after { width: 60%; }
.nav-link.active { color: var(--text); }
.nav-link.active::after { width: 60%; }

.nav-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--r-tag);
  padding: 6px 14px;
  width: 38px;
  overflow: hidden;
  transition: width .35s ease, border-color .3s ease, background .3s ease;
}
.nav-search:hover, .nav-search:focus-within {
  width: 200px;
  background: rgba(255,255,255,0.08);
  border-color: rgba(61,159,255,0.35);
}
.nav-search i { color: var(--text-2); font-size: 14px; flex-shrink: 0; }
.nav-search input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 13px;
  width: 0;
  transition: width .35s ease;
}
.nav-search:hover input, .nav-search:focus-within input { width: 140px; }
.nav-search input::placeholder { color: var(--text-3); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 20px;
  padding: 8px;
}

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  padding: 12px 24px;
  border-radius: var(--r-btn);
  border: none;
  cursor: pointer;
  transition: all .3s ease;
  text-decoration: none;
  line-height: 1;
  white-space: nowrap;
}
.btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.btn:active { transform: scale(0.98); }
.btn-primary { background: var(--gradient); color: #fff; box-shadow: var(--glow-primary); }
.btn-primary:hover { box-shadow: var(--glow-primary-hover); filter: brightness(1.08); color: #fff; }
.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(255,255,255,0.2);
}
.btn-outline:hover { border-color: rgba(255,255,255,0.35); background: rgba(255,255,255,0.05); color: var(--text); }
.btn-cta { background: var(--cta); color: #fff; box-shadow: 0 0 20px rgba(255,107,53,0.35); }
.btn-cta:hover { box-shadow: 0 0 30px rgba(255,107,53,0.55); filter: brightness(1.08); color: #fff; }
.btn-sm { font-size: 12px; padding: 8px 16px; border-radius: 8px; }

/* ========== Hero ========== */
.hero {
  position: relative;
  min-height: 100vh;
  padding-top: 60px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 15% 85%, rgba(61,159,255,0.12) 0%, transparent 55%),
    radial-gradient(ellipse at 85% 15%, rgba(0,224,198,0.08) 0%, transparent 45%),
    var(--bg);
}
.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 70px;
  background: repeating-linear-gradient(-45deg, transparent 0px, transparent 70px, rgba(255,255,255,0.03) 70px, rgba(255,255,255,0.03) 71px);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 60px;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.hero-cover { flex: 0 0 55%; max-width: 55%; }
.hero-info { flex: 0 0 45%; max-width: 45%; padding: 48px 0; }

.hero-cover-inner {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  height: 460px;
  box-shadow: 0 24px 64px rgba(0,0,0,0.55);
  border: 1px solid rgba(255,255,255,0.06);
}
.hero-cover-inner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-cover-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10,15,30,0.1) 0%, rgba(10,15,30,0.55) 100%);
}
.live-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(255,59,48,0.92);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: var(--r-tag);
  display: flex;
  align-items: center;
  gap: 8px;
  letter-spacing: 1px;
  box-shadow: 0 4px 16px rgba(255,59,48,0.45);
}
.live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #fff;
  animation: breathe 1.5s ease-in-out infinite;
}
@keyframes breathe {
  0%, 100% { box-shadow: 0 0 4px rgba(255,255,255,0.5); }
  50% { box-shadow: 0 0 12px rgba(255,255,255,0.95); }
}

.hero-info h1 {
  font-size: clamp(30px, 3.6vw, 42px);
  font-weight: 800;
  line-height: 1.25;
  color: var(--text);
  margin-bottom: 16px;
}
.hero-subtitle {
  font-size: 16px;
  color: var(--text-2);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 460px;
}

.hero-countdown {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--r-card);
  padding: 20px 24px;
  margin-bottom: 32px;
  backdrop-filter: blur(10px);
}
.cd-block { text-align: center; min-width: 60px; }
.cd-num {
  display: inline-block;
  font-size: 32px;
  font-weight: 800;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  text-shadow: var(--glow-accent);
  line-height: 1;
  font-family: "PingFang SC","Microsoft YaHei",monospace;
}
.cd-label {
  display: block;
  font-size: 12px;
  color: var(--text-3);
  margin-top: 6px;
  letter-spacing: 2px;
}
.cd-sep {
  font-size: 24px;
  color: var(--text-3);
  padding-top: 4px;
  font-weight: 300;
}

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

/* ========== 倒计时通栏 ========== */
.countdown-bar {
  position: relative;
  z-index: 3;
  margin-top: -30px;
  margin-bottom: 30px;
}
.cd-bar-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  backdrop-filter: blur(20px);
  border-radius: var(--r-card);
  padding: 20px 32px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.35);
  overflow: hidden;
}
.cd-bar-inner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(-45deg, transparent 0px, transparent 90px, rgba(255,255,255,0.02) 90px, rgba(255,255,255,0.02) 91px);
  pointer-events: none;
}
.cd-bar-label {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 1;
}
.cd-bar-label i { color: var(--accent); }
.cd-bar-timer {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 14px;
  color: var(--text-2);
  z-index: 1;
}
.cd-bar-num {
  font-size: 26px;
  font-weight: 800;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  text-shadow: var(--glow-accent);
  min-width: 44px;
  text-align: center;
  font-family: "PingFang SC","Microsoft YaHei",monospace;
}

/* ========== 看点 ========== */
.highlight-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  padding: 28px 24px;
  height: 100%;
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
  overflow: hidden;
}
.highlight-card::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 3px;
  border-radius: 4px;
  background: var(--gradient);
  box-shadow: var(--glow-primary);
  transition: width .4s ease;
}
.highlight-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-hover);
}
.highlight-card:hover::before { width: 60%; }
.hl-num {
  font-size: 28px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  display: block;
  margin-bottom: 20px;
  opacity: 0.85;
}
.highlight-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}
.highlight-card p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.6;
}

/* ========== 订阅 ========== */
.subscribe {
  position: relative;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(61,159,255,0.15) 0%, transparent 60%),
    var(--bg);
  overflow: hidden;
}
.subscribe-inner {
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
}
.subscribe-inner h2 {
  font-size: clamp(24px, 2.4vw, 30px);
  font-weight: 700;
  margin-bottom: 12px;
}
.subscribe-inner > p {
  color: var(--text-2);
  font-size: 15px;
  margin-bottom: 32px;
}
.subscribe-form {
  display: flex;
  gap: 12px;
}
.subscribe-form input {
  flex: 1;
  height: 48px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--r-input);
  padding: 0 18px;
  color: var(--text);
  font-size: 14px;
  outline: none;
  transition: border-color .3s ease, box-shadow .3s ease;
}
.subscribe-form input::placeholder { color: var(--text-3); }
.subscribe-form input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(61,159,255,0.15);
}
.subscribe-form input.invalid {
  border-color: var(--cta);
  box-shadow: 0 0 0 4px rgba(255,107,53,0.15);
}
.form-error {
  display: none;
  color: var(--cta);
  font-size: 12px;
  margin-top: 10px;
  text-align: left;
}
.subscribe-success {
  color: var(--accent);
  font-size: 15px;
  padding: 16px;
  border: 1px solid rgba(0,224,198,0.3);
  border-radius: var(--r-card);
  background: rgba(0,224,198,0.08);
}

/* ========== 资讯列表 ========== */
.news-list { display: flex; flex-direction: column; gap: 14px; }
.news-row {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  padding: 20px 24px;
  transition: background .3s ease, border-color .3s ease, transform .2s ease;
  text-decoration: none;
}
.news-row:hover {
  background: rgba(255,255,255,0.07);
  border-color: var(--border-hover);
  transform: translateX(4px);
}
.news-row:hover .news-content h3 { color: var(--primary); }
.news-date {
  flex-shrink: 0;
  min-width: 76px;
  text-align: center;
  background: rgba(255,255,255,0.05);
  border-radius: 12px;
  padding: 12px 10px;
}
.news-day {
  display: block;
  font-size: 18px;
  font-weight: 800;
  color: var(--text);
  line-height: 1.2;
}
.news-month {
  display: block;
  font-size: 12px;
  color: var(--text-3);
  margin-top: 2px;
}
.news-content { flex: 1; min-width: 0; }
.news-content h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  transition: color .3s ease;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 4px;
}
.news-content p {
  font-size: 13px;
  color: var(--text-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-cat {
  flex-shrink: 0;
  font-size: 12px;
  color: var(--text-2);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--r-tag);
  padding: 4px 12px;
  transition: border-color .3s ease, color .3s ease;
}
.news-row:hover .news-cat { border-color: rgba(61,159,255,0.4); color: var(--primary); }
.news-arrow {
  flex-shrink: 0;
  color: var(--text-3);
  font-size: 14px;
  transition: color .3s ease, transform .3s ease;
}
.news-row:hover .news-arrow { color: var(--primary); transform: translateX(4px); }

.empty-state {
  border: 1px dashed rgba(255,255,255,0.2);
  border-radius: var(--r-card);
  padding: 48px 24px;
  text-align: center;
  color: var(--text-3);
  font-size: 14px;
}

/* ========== 回放 ========== */
.replay-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  overflow: hidden;
  height: 100%;
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
  text-decoration: none;
}
.replay-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-hover);
}
.replay-cover {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}
.replay-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.replay-card:hover .replay-cover img { transform: scale(1.05); }
.replay-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(10,15,30,0.3) 100%);
}
.replay-duration {
  position: absolute;
  bottom: 10px;
  left: 12px;
  z-index: 2;
  background: rgba(0,0,0,0.5);
  color: #fff;
  font-size: 12px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 6px;
  backdrop-filter: blur(4px);
}
.play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 14px;
  transition: background .3s ease, box-shadow .3s ease, transform .3s ease;
}
.replay-card:hover .play-btn {
  background: var(--primary);
  box-shadow: var(--glow-primary);
  transform: translate(-50%, -50%) scale(1.1);
}
.replay-info { padding: 18px 20px; }
.replay-info h3 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 8px;
  transition: color .3s ease;
}
.replay-card:hover .replay-info h3 { color: var(--primary); }
.replay-link {
  font-size: 13px;
  color: var(--text-3);
  transition: color .3s ease;
}
.replay-card:hover .replay-link { color: var(--accent); }

/* ========== FAQ ========== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid rgba(255,255,255,0.08);
  position: relative;
  transition: background .3s ease;
}
.faq-item.active {
  background: rgba(61,159,255,0.04);
  border-radius: var(--r-card);
  border-left: 3px solid var(--primary);
  box-shadow: 0 0 20px rgba(61,159,255,0.08);
  margin-bottom: 8px;
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: none;
  border: none;
  padding: 22px 20px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  text-align: left;
  transition: color .3s ease;
}
.faq-question:hover { color: var(--primary); }
.faq-icon {
  color: var(--text-3);
  font-size: 16px;
  transition: transform .35s ease, color .3s ease;
}
.faq-item.active .faq-icon {
  transform: rotate(90deg);
  color: var(--primary);
}
.faq-answer {
  display: none;
  padding: 0 20px 22px;
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.8;
}

/* ========== CTA ========== */
.cta-section {
  position: relative;
  padding: 100px 0;
  text-align: center;
  background:
    radial-gradient(ellipse at 50% 50%, rgba(61,159,255,0.18) 0%, transparent 60%),
    var(--bg);
}
.cta-section h2 {
  font-size: clamp(26px, 2.8vw, 34px);
  font-weight: 800;
  color: var(--text);
  margin-bottom: 16px;
  line-height: 1.3;
}
.cta-section p {
  color: var(--text-2);
  font-size: 15px;
  margin-bottom: 36px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

/* ========== 页脚 ========== */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2.2fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-logo .logo-mark { width: 30px; height: 30px; font-size: 13px; border-radius: 8px; }
.footer-brand p {
  font-size: 14px;
  color: var(--text-3);
  line-height: 1.8;
  max-width: 280px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--text-3);
  padding: 5px 0;
  transition: color .25s ease, padding-left .25s ease;
}
.footer-col a:hover { color: var(--primary); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 20px 0;
  text-align: center;
  font-size: 12px;
  color: var(--text-3);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .hero-inner { gap: 36px; }
  .hero-cover { flex: 0 0 50%; max-width: 50%; }
  .hero-info { flex: 0 0 50%; max-width: 50%; }
  .hero-cover-inner { height: 380px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .section { padding: 48px 0; }
  .nav-toggle { display: block; }
  .main-nav {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: rgba(10,15,30,0.98);
    flex-direction: column;
    padding: 16px 24px 24px;
    gap: 4px;
    display: none;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 16px 40px rgba(0,0,0,0.4);
  }
  .main-nav.open { display: flex; }
  .nav-link { padding: 12px 16px; }
  .nav-search { display: none; }
  .nav-right .btn-sm { display: none; }
  .hero-inner { flex-direction: column; gap: 28px; padding-top: 32px; }
  .hero-cover { flex: 0 0 auto; max-width: 100%; width: 100%; }
  .hero-info { flex: 0 0 auto; max-width: 100%; width: 100%; padding: 0 0 40px; }
  .hero-cover-inner { height: 50vh; min-height: 300px; }
  .hero-countdown { padding: 16px 14px; gap: 4px; }
  .cd-block { min-width: 44px; }
  .cd-num { font-size: 26px; }
  .cd-sep { display: none; }
  .hero-actions .btn { flex: 1; }
  .cd-bar-inner { flex-direction: column; gap: 14px; padding: 18px 20px; }
  .cd-bar-timer { flex-wrap: wrap; justify-content: center; }
  .cd-bar-num { font-size: 22px; min-width: 36px; }
  .subscribe-form { flex-direction: column; }
  .subscribe-form .btn { width: 100%; }
  .news-row { flex-wrap: wrap; padding: 16px; gap: 12px; }
  .news-date { min-width: 60px; padding: 8px; }
  .news-date .news-day { font-size: 16px; }
  .news-date .news-month { font-size: 11px; }
  .news-content { flex: 1 0 calc(100% - 80px); }
  .news-content h3 { font-size: 14px; }
  .news-content p { display: none; }
  .news-cat { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .faq-question { font-size: 15px; padding: 18px 14px; }
  .faq-answer { font-size: 14px; padding: 0 14px 18px; }
}

/* roulang page: category1 */
:root {
  --bg-primary: #0A0F1E;
  --bg-card: rgba(255,255,255,0.04);
  --bg-footer: #070B14;
  --primary: #3D9FFF;
  --accent-cyan: #00E0C6;
  --accent-orange: #FF6B35;
  --text-main: #E8EEF9;
  --text-secondary: #94A3B8;
  --text-weak: #5B6B80;
  --border-glass: rgba(255,255,255,0.08);
  --border-hover: rgba(61,159,255,0.45);
  --radius-card: 16px;
  --radius-btn: 10px;
  --radius-input: 8px;
  --shadow-card: 0 8px 32px rgba(0,0,0,0.25);
  --shadow-hover: 0 16px 48px rgba(0,0,0,0.4);
  --font-family: "PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",sans-serif;
  --gradient-primary: linear-gradient(180deg, #3D9FFF 0%, #00E0C6 100%);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-family);
  background:var(--bg-primary);
  color:var(--text-main);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .3s}
a:hover{color:var(--accent-cyan)}
ul,ol{list-style:none}
input,button{font-family:var(--font-family)}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-btn);
  font-size:14px;font-weight:700;line-height:1;cursor:pointer;transition:all .3s;
  border:none;text-decoration:none;
}
.btn-primary{
  background:var(--gradient-primary);color:#fff;
  box-shadow:0 0 20px rgba(61,159,255,0.35);
}
.btn-primary:hover{
  box-shadow:0 0 28px rgba(61,159,255,0.55);
  filter:brightness(1.08);color:#fff;transform:translateY(-2px);
}
.btn-secondary{
  background:transparent;color:var(--text-main);
  border:1px solid rgba(255,255,255,0.2);
}
.btn-secondary:hover{border-color:rgba(255,255,255,0.35);background:rgba(255,255,255,0.05);color:var(--text-main)}
.btn-cta{
  background:var(--accent-orange);color:#fff;
  box-shadow:0 0 20px rgba(255,107,53,0.35);
}
.btn-cta:hover{box-shadow:0 0 28px rgba(255,107,53,0.55);filter:brightness(1.08);color:#fff;transform:translateY(-2px)}
.btn-sm{padding:8px 16px;font-size:12px;border-radius:8px}
.btn:active{transform:scale(0.98)}
.btn:focus-visible,.tab-label:focus-visible,input:focus-visible{
  outline:2px solid var(--primary);outline-offset:2px;
}

.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:60px;background:rgba(10,15,30,0.75);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;transition:all .3s;
}
.site-header.scrolled{background:rgba(10,15,30,0.92);border-bottom:1px solid rgba(255,255,255,0.08)}
.nav-inner{
  max-width:1200px;height:60px;margin:0 auto;padding:0 24px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.nav-left{display:flex;align-items:center;gap:32px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none}
.logo-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--gradient-primary);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;
  box-shadow:0 0 16px rgba(61,159,255,0.35);
}
.logo-text{font-size:20px;font-weight:800;color:var(--text-main);letter-spacing:1px}
.main-nav{display:flex;gap:24px}
.main-nav .nav-link{
  position:relative;font-size:14px;color:var(--text-secondary);
  text-decoration:none;padding:6px 2px;transition:color .3s;
}
.main-nav .nav-link::after{
  content:'';position:absolute;left:0;bottom:0;width:0;height:2px;
  background:var(--gradient-primary);border-radius:2px;transition:width .3s;
  box-shadow:0 0 8px rgba(61,159,255,0.6);
}
.main-nav .nav-link:hover{color:var(--text-main)}
.main-nav .nav-link:hover::after{width:100%}
.main-nav .nav-link.active{color:var(--text-main);font-weight:700}
.main-nav .nav-link.active::after{width:100%}
.nav-right{display:flex;align-items:center;gap:16px}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:rgba(255,255,255,0.05);border:1px solid rgba(255,255,255,0.1);
  border-radius:var(--radius-input);padding:6px 12px;width:180px;transition:border-color .3s;
}
.nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 12px rgba(61,159,255,0.25)}
.nav-search i{color:var(--text-weak);font-size:14px}
.nav-search input{
  background:transparent;border:none;outline:none;color:var(--text-main);
  font-size:13px;width:100%;
}
.nav-search input::placeholder{color:var(--text-weak)}
.nav-toggle{
  display:none;background:transparent;border:1px solid rgba(255,255,255,0.2);
  border-radius:8px;color:var(--text-main);width:38px;height:38px;
  align-items:center;justify-content:center;cursor:pointer;font-size:15px;transition:all .3s;
}
.nav-toggle:hover{border-color:var(--primary);background:rgba(61,159,255,0.12)}

main{padding-top:60px}

.cat-hero{
  position:relative;padding:100px 0 80px;overflow:hidden;
  background-image:linear-gradient(135deg,rgba(10,15,30,0.88) 0%,rgba(10,15,30,0.72) 55%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.cat-hero::before{
  content:'';position:absolute;width:420px;height:420px;border-radius:50%;
  background:rgba(61,159,255,0.15);filter:blur(90px);top:-80px;right:10%;
  pointer-events:none;
}
.cat-hero::after{
  content:'';position:absolute;width:300px;height:300px;border-radius:50%;
  background:rgba(0,224,198,0.08);filter:blur(80px);bottom:0;left:5%;
  pointer-events:none;
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:999px;
  background:rgba(0,224,198,0.1);border:1px solid rgba(0,224,198,0.35);
  color:var(--accent-cyan);font-size:13px;font-weight:700;margin-bottom:20px;
}
.hero-tag i{font-size:11px}
.cat-hero h1{
  font-size:clamp(32px,4vw,48px);font-weight:800;line-height:1.2;
  margin-bottom:16px;color:var(--text-main);
}
.cat-hero .subtitle{
  font-size:16px;color:var(--text-secondary);max-width:560px;line-height:1.8;margin-bottom:24px;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-next-card{
  background:rgba(255,255,255,0.04);border:1px solid var(--border-glass);
  border-radius:var(--radius-card);padding:24px;backdrop-filter:blur(20px);
  position:relative;
}
.hero-next-card::before{
  content:'';position:absolute;inset:0;border-radius:var(--radius-card);
  background:linear-gradient(180deg,transparent 60%,rgba(0,224,198,0.05));
  pointer-events:none;
}
.hero-next-card .next-label{
  font-size:12px;color:var(--text-weak);letter-spacing:2px;margin-bottom:10px;
}
.hero-next-card .next-match{
  font-size:16px;font-weight:700;color:var(--text-main);margin-bottom:8px;
}
.hero-next-card .next-time{
  font-size:14px;color:var(--accent-cyan);
  font-variant-numeric:tabular-nums;font-weight:600;
}
.hero-next-card .live-dot{
  display:inline-block;width:8px;height:8px;border-radius:50%;
  background:#FF3B30;margin-right:6px;
  animation:pulse-dot 1.6s infinite;
}
@keyframes pulse-dot{
  0%,100%{box-shadow:0 0 0 0 rgba(255,59,48,0.5)}
  50%{box-shadow:0 0 0 8px rgba(255,59,48,0)}
}

.subcat-section{padding:56px 0 8px}
.subcat-tabs{display:flex;flex-wrap:wrap;gap:10px}
.tab-label{
  padding:9px 22px;border-radius:999px;font-size:14px;
  border:1px solid rgba(255,255,255,0.12);
  background:rgba(255,255,255,0.03);color:var(--text-secondary);
  text-decoration:none;transition:all .3s;cursor:pointer;
}
.tab-label:hover{
  border-color:var(--primary);color:var(--text-main);
  background:rgba(61,159,255,0.1);
}
.tab-label.active{
  background:var(--gradient-primary);border-color:transparent;color:#fff;font-weight:700;
  box-shadow:0 0 16px rgba(61,159,255,0.3);
}

.matches-section{padding:60px 0 80px}
.section-head{margin-bottom:36px}
.section-head h2{
  font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.3;margin-bottom:8px;
}
.section-head p{font-size:15px;color:var(--text-secondary);max-width:680px}
.match-card{
  background:var(--bg-card);border:1px solid var(--border-glass);
  border-radius:var(--radius-card);overflow:hidden;margin-bottom:20px;
  transition:transform .3s,border-color .3s,box-shadow .3s;
  height:100%;display:flex;flex-direction:column;
}
.match-card:hover{
  transform:translateY(-4px);
  border-color:var(--border-hover);
  box-shadow:var(--shadow-hover);
}
.match-card .cover{
  position:relative;overflow:hidden;aspect-ratio:16/9;flex-shrink:0;
}
.match-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.match-card:hover .cover img{transform:scale(1.05)}
.match-card .cover::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 55%,rgba(10,15,30,0.75));
}
.match-card .match-cat{
  position:absolute;top:14px;left:14px;z-index:2;
  padding:4px 12px;border-radius:999px;
  background:rgba(10,15,30,0.65);border:1px solid rgba(255,255,255,0.15);
  color:var(--text-main);font-size:12px;font-weight:600;backdrop-filter:blur(6px);
}
.match-card .match-body{padding:20px 20px 22px;flex:1;display:flex;flex-direction:column}
.match-card .match-title{font-size:16px;font-weight:700;line-height:1.4;margin-bottom:6px;color:var(--text-main)}
.match-card .match-teams{font-size:14px;color:var(--text-secondary);margin-bottom:12px}
.match-card .match-meta{
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-weak);margin-top:auto;padding-top:12px;
  border-top:1px solid rgba(255,255,255,0.06);
}
.match-card .match-meta .time{display:flex;align-items:center;gap:6px}
.match-card .match-meta .time i{color:var(--accent-cyan);font-size:12px}
.match-card .match-link{color:var(--primary);font-size:13px;font-weight:700;display:flex;align-items:center;gap:6px}
.match-card .match-link:hover{color:var(--accent-cyan)}

.stats-section{padding:70px 0;background:rgba(255,255,255,0.015);border-top:1px solid rgba(255,255,255,0.04);border-bottom:1px solid rgba(255,255,255,0.04)}
.stat-item{text-align:center;padding:24px 16px}
.stat-number{
  font-size:clamp(32px,3vw,42px);font-weight:800;line-height:1.1;
  background:var(--gradient-primary);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  font-variant-numeric:tabular-nums;
}
.stat-label{font-size:14px;color:var(--text-secondary);margin-top:8px}

.flow-section{padding:80px 0}
.flow-step{
  background:var(--bg-card);border:1px solid var(--border-glass);
  border-radius:var(--radius-card);padding:28px 24px;height:100%;
  position:relative;transition:all .3s;
}
.flow-step:hover{border-color:var(--border-hover);box-shadow:var(--shadow-card);transform:translateY(-3px)}
.flow-step .step-num{
  font-size:28px;font-weight:800;color:var(--accent-cyan);
  font-variant-numeric:tabular-nums;margin-bottom:14px;
  display:inline-block;width:50px;height:50px;line-height:50px;text-align:center;
  background:rgba(0,224,198,0.08);border-radius:14px;
}
.flow-step h3{font-size:16px;font-weight:700;margin-bottom:8px}
.flow-step p{font-size:14px;color:var(--text-secondary);line-height:1.7}
.flow-arrow{
  position:absolute;right:-18px;top:50%;transform:translateY(-50%);
  color:var(--text-weak);font-size:16px;z-index:2;
}

.faq-section{padding:80px 0;background:rgba(255,255,255,0.015);border-top:1px solid rgba(255,255,255,0.04)}
.faq-section .section-head{text-align:center}
.faq-section .section-head p{margin:0 auto}
.faq-list{max-width:760px;margin:0 auto}
.accordion-item{
  background:transparent;border:none;border-bottom:1px solid rgba(255,255,255,0.08);
  border-radius:0;position:relative;transition:all .3s;
}
.accordion-item:last-child{border-bottom:none}
.accordion-item.is-active{border-bottom-color:rgba(61,159,255,0.2)}
.accordion-item.is-active::before{
  content:'';position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--gradient-primary);border-radius:3px;
  box-shadow:0 0 12px rgba(61,159,255,0.4);
}
.accordion-title{
  padding:20px 40px 20px 20px;font-size:16px;font-weight:700;color:var(--text-main);
  display:flex;align-items:center;justify-content:space-between;cursor:pointer;
  position:relative;background:transparent;
}
.accordion-title::after{
  content:'\f067';font-family:'Font Awesome 6 Free';font-weight:900;
  font-size:14px;color:var(--text-weak);transition:all .3s;
  position:absolute;right:18px;top:50%;transform:translateY(-50%);
}
.accordion-item.is-active .accordion-title::after{
  content:'\f068';color:var(--accent-cyan);transform:translateY(-50%) rotate(90deg);
}
.accordion-title:hover{color:var(--text-main)}
.accordion-content{padding:0 20px 20px;color:var(--text-secondary);font-size:15px;line-height:1.8}
.accordion-content p{margin-bottom:0}

.cta-section{
  position:relative;padding:80px 0;overflow:hidden;
  text-align:center;background:var(--bg-footer);
}
.cta-section::before{
  content:'';position:absolute;width:500px;height:500px;border-radius:50%;
  background:rgba(61,159,255,0.12);filter:blur(100px);
  top:50%;left:50%;transform:translate(-50%,-50%);pointer-events:none;
}
.cta-section .container{position:relative;z-index:2}
.cta-section h2{
  font-size:clamp(24px,2.6vw,30px);font-weight:800;line-height:1.3;margin-bottom:12px;
}
.cta-section p{font-size:15px;color:var(--text-secondary);max-width:520px;margin:0 auto 28px}
.subscribe-form{
  display:flex;gap:10px;max-width:520px;margin:0 auto;
  flex-wrap:wrap;justify-content:center;
}
.subscribe-form input[type="text"]{
  flex:1;min-width:200px;height:46px;
  background:rgba(255,255,255,0.05);border:1px solid rgba(255,255,255,0.12);
  border-radius:var(--radius-input);padding:0 16px;
  color:var(--text-main);font-size:14px;transition:all .3s;
}
.subscribe-form input[type="text"]:focus{
  border-color:var(--primary);box-shadow:0 0 0 4px rgba(61,159,255,0.15);
  outline:none;
}
.subscribe-form input[type="text"]::placeholder{color:var(--text-weak)}
.subscribe-form .form-error{
  flex-basis:100%;color:var(--accent-orange);font-size:12px;text-align:left;
  display:none;padding-left:4px;
}
.subscribe-form .form-error.show{display:block}

.site-footer{
  background:var(--bg-footer);border-top:1px solid rgba(255,255,255,0.06);
  padding:60px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;
  max-width:1200px;margin:0 auto;padding:0 24px 40px;
}
.footer-brand p{font-size:14px;color:var(--text-secondary);line-height:1.8;margin-top:16px;max-width:320px}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.footer-logo .logo-text{font-size:20px;font-weight:800;color:var(--text-main)}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text-main);margin-bottom:16px}
.footer-col a{
  display:block;font-size:14px;color:var(--text-weak);margin-bottom:10px;text-decoration:none;
  transition:all .3s;
}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.06);padding:20px 24px;
  text-align:center;
}
.footer-bottom p{font-size:12px;color:var(--text-weak);margin:0}

@media(max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr 1fr;grid-template-areas:'brand brand brand' 'col1 col2 col3'}
  .footer-brand{grid-area:brand}
}
@media(max-width:768px){
  .nav-toggle{display:flex}
  .main-nav{
    position:fixed;top:60px;left:0;right:0;
    background:rgba(10,15,30,0.97);border-bottom:1px solid rgba(255,255,255,0.08);
    flex-direction:column;padding:16px 24px;gap:4px;
    transform:translateY(-100%);transition:transform .3s;z-index:999;
  }
  .main-nav.open{transform:translateY(0)}
  .main-nav .nav-link{padding:12px 4px;font-size:16px}
  .nav-search{width:120px}
  .nav-right .btn-cta{display:none}
  .cat-hero{padding:80px 0 56px}
  .flow-arrow{display:none}
  .hero-actions .btn{flex:1}
  .stats-section{padding:50px 0}
  .flow-section,.faq-section,.cta-section{padding:56px 0}
  .footer-grid{grid-template-columns:1fr 1fr;grid-template-areas:'brand brand' 'col1 col2' 'col3 col3'}
}
@media(max-width:520px){
  .container{padding:0 16px}
  .nav-inner{padding:0 16px}
  .nav-right{gap:10px}
  .nav-search{width:calc(100vw - 180px)}
  .footer-grid{grid-template-columns:1fr;grid-template-areas:'brand' 'col1' 'col2' 'col3'}
  .subscribe-form .btn{width:100%}
}

/* roulang page: article */
:root {
  --bg: #0A0F1E;
  --bg-deep: #070B14;
  --card-bg: rgba(255,255,255,0.04);
  --card-border: rgba(255,255,255,0.08);
  --primary: #3D9FFF;
  --accent: #00E0C6;
  --cta: #FF6B35;
  --live-red: #FF3B30;
  --text: #E8EEF9;
  --text-secondary: #94A3B8;
  --text-muted: #5B6B80;
  --radius: 16px;
  --radius-btn: 10px;
  --radius-input: 8px;
  --shadow: 0 8px 32px rgba(0,0,0,0.25);
  --shadow-hover: 0 16px 48px rgba(0,0,0,0.4);
  --gradient: linear-gradient(180deg, #3D9FFF, #00E0C6);
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

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

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-weight: 700;
}

p {
  margin: 0;
}

ul, ol {
  margin: 0;
  padding: 0;
}

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

/* ---------- 按钮体系 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-btn);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  border: none;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s, background 0.2s, filter 0.2s;
}
.btn:hover {
  transform: translateY(-2px);
}
.btn:active {
  transform: scale(0.98);
}
.btn:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 0 20px rgba(61,159,255,0.35);
}
.btn-primary:hover {
  box-shadow: 0 0 28px rgba(61,159,255,0.55);
  filter: brightness(1.08);
}
.btn-outline {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--text);
}
.btn-outline:hover {
  border-color: rgba(255,255,255,0.35);
  background: rgba(255,255,255,0.05);
}
.btn-cta {
  background: var(--cta);
  color: #fff;
  box-shadow: 0 0 20px rgba(255,107,53,0.3);
}
.btn-cta:hover {
  box-shadow: 0 0 28px rgba(255,107,53,0.45);
}
.btn-sm {
  padding: 8px 16px;
  font-size: 12px;
}

/* ---------- 导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  min-height: 60px;
  display: flex;
  align-items: center;
  padding: 0 clamp(16px, 3vw, 40px);
  background: rgba(10,15,30,0.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background 0.3s, box-shadow 0.3s, border-color 0.3s;
}
.site-header.scrolled {
  background: rgba(10,15,30,0.92);
  border-bottom: 1px solid rgba(255,255,255,0.1);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
.nav-inner {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.nav-left {
  display: flex;
  align-items: center;
  gap: 24px;
  min-width: 0;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: 0.5px;
  flex-shrink: 0;
}
.logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 15px;
  flex-shrink: 0;
  box-shadow: 0 0 12px rgba(61,159,255,0.35);
}
.logo-text {
  white-space: nowrap;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  display: inline-block;
  padding: 8px 14px;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  border-radius: 8px;
  position: relative;
  transition: color 0.2s, background 0.2s;
}
.nav-link:hover {
  color: var(--text);
  background: rgba(255,255,255,0.05);
}
.nav-link.active {
  color: var(--primary);
}
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(61,159,255,0.6);
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}
.nav-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 999px;
  padding: 0 14px;
  height: 36px;
  width: 180px;
  color: var(--text-muted);
  cursor: text;
  transition: width 0.3s, border-color 0.2s, box-shadow 0.2s;
}
.nav-search:hover {
  border-color: rgba(255,255,255,0.2);
}
.nav-search:focus-within {
  width: 220px;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(61,159,255,0.15);
}
.nav-search input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 13px;
  width: 100%;
}
.nav-search input::placeholder {
  color: var(--text-muted);
}
.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.15);
  color: var(--text);
  width: 36px;
  height: 36px;
  border-radius: 8px;
  font-size: 16px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s, background 0.2s;
}
.nav-toggle:hover {
  border-color: var(--primary);
  background: rgba(255,255,255,0.05);
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  max-width: 720px;
  margin: 32px auto 0;
  padding: 0 24px;
  color: var(--text-muted);
  font-size: 12px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.breadcrumb a {
  color: var(--text-muted);
  transition: color 0.2s;
}
.breadcrumb a:hover {
  color: var(--primary);
}
.breadcrumb .sep {
  opacity: 0.6;
  color: var(--text-muted);
}
.breadcrumb .current {
  color: var(--text-secondary);
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---------- 文章主体 ---------- */
.article-main {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 24px 24px;
}
.article-title {
  font-size: clamp(30px, 4vw, 40px);
  line-height: 1.3;
  font-weight: 800;
  margin-bottom: 16px;
  color: var(--text);
  letter-spacing: 0.3px;
  word-break: break-word;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  color: var(--text-muted);
  font-size: 14px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  margin-bottom: 32px;
}
.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.article-meta i {
  color: var(--primary);
  font-size: 13px;
}

/* ---------- 正文排版 ---------- */
.article-content {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
  word-break: break-word;
}
.article-content p {
  margin-bottom: 24px;
}
.article-content h2 {
  font-size: 24px;
  font-weight: 700;
  margin: 36px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  color: var(--text);
}
.article-content h3 {
  font-size: 19px;
  font-weight: 700;
  margin: 28px 0 12px;
  color: var(--text);
}
.article-content h4 {
  font-size: 16px;
  font-weight: 700;
  margin: 24px 0 10px;
  color: var(--text);
}
.article-content ul,
.article-content ol {
  margin: 0 0 24px;
  padding-left: 1.4em;
}
.article-content li {
  margin-bottom: 6px;
}
.article-content img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  margin: 24px 0;
}
.article-content figure {
  margin: 24px 0;
}
.article-content figure img {
  margin: 0;
}
.article-content figcaption {
  font-size: 13px;
  color: var(--text-muted);
  text-align: center;
  margin-top: 10px;
}
.article-content blockquote {
  margin: 24px 0;
  padding: 16px 20px;
  border-left: 3px solid var(--primary);
  background: rgba(61,159,255,0.06);
  border-radius: 0 10px 10px 0;
  color: var(--text-secondary);
  font-style: normal;
}
.article-content blockquote p:last-child {
  margin-bottom: 0;
}
.article-content code {
  background: rgba(255,255,255,0.08);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 0.9em;
  font-family: "SF Mono", Consolas, monospace;
}
.article-content pre {
  background: rgba(0,0,0,0.3);
  padding: 16px 20px;
  border-radius: 12px;
  overflow-x: auto;
  margin: 24px 0;
  border: 1px solid rgba(255,255,255,0.08);
}
.article-content pre code {
  background: transparent;
  padding: 0;
  font-size: 0.9em;
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
}
.article-content th,
.article-content td {
  border: 1px solid rgba(255,255,255,0.1);
  padding: 10px 14px;
  text-align: left;
}
.article-content th {
  background: rgba(255,255,255,0.05);
  font-weight: 700;
}
.article-content a {
  color: var(--primary);
  border-bottom: 1px dashed rgba(61,159,255,0.4);
}
.article-content a:hover {
  border-bottom-style: solid;
}

/* ---------- 标签与分享 ---------- */
.article-tags {
  max-width: 720px;
  margin: 0 auto;
  padding: 24px 24px 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.14);
  color: var(--text-secondary);
  border-radius: 999px;
  font-size: 12px;
  transition: border-color 0.2s, color 0.2s;
}
.tag:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.share-bar {
  max-width: 720px;
  margin: 24px auto 0;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 14px;
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.share-bar a {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: rgba(255,255,255,0.05);
  color: var(--text-secondary);
  font-size: 14px;
  transition: background 0.2s, color 0.2s, transform 0.2s;
}
.share-bar a:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}

/* ---------- 相关推荐 ---------- */
.recommend-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 64px 24px 20px;
}
.recommend-section .section-title {
  text-align: center;
  font-size: clamp(22px, 2.4vw, 30px);
  font-weight: 700;
  margin-bottom: 36px;
  color: var(--text);
}
.recommend-section .grid-x {
  margin-bottom: 32px;
}
.recommend-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px;
  overflow: hidden;
  display: block;
  height: 100%;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.recommend-card:hover {
  transform: translateY(-4px);
  border-color: rgba(61,159,255,0.45);
  box-shadow: 0 16px 48px rgba(0,0,0,0.4);
}
.recommend-thumb {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  position: relative;
}
.recommend-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}
.recommend-card:hover .recommend-thumb img {
  transform: scale(1.05);
}
.recommend-body {
  padding: 16px 20px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.recommend-body h4 {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text);
  transition: color 0.2s;
}
.recommend-card:hover .recommend-body h4 {
  color: var(--primary);
}
.recommend-date {
  color: var(--text-muted);
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
}
.recommend-date i {
  font-size: 12px;
}

/* ---------- 返回首页 ---------- */
.back-home {
  text-align: center;
  padding: 24px 24px 60px;
}

/* ---------- 空态 ---------- */
.not-found-wrap {
  padding-top: 100px;
  padding-bottom: 100px;
}
.not-found {
  text-align: center;
  padding: 80px 24px;
  border: 1px dashed rgba(255,255,255,0.2);
  border-radius: var(--radius);
  color: var(--text-muted);
  background: rgba(255,255,255,0.02);
}
.not-found i {
  font-size: 44px;
  color: var(--text-muted);
  margin-bottom: 16px;
  display: block;
}
.not-found h2 {
  font-size: 24px;
  color: var(--text);
  margin-bottom: 8px;
}
.not-found p {
  margin-bottom: 28px;
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 60px 0 24px;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--text);
}
.footer-brand p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.8;
  max-width: 320px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
}
.footer-col a {
  display: block;
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 10px;
  transition: color 0.2s;
}
.footer-col a:hover {
  color: var(--primary);
}
.footer-bottom {
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.06);
  text-align: center;
  color: var(--text-muted);
  font-size: 12px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .recommend-section .grid-x {
    row-gap: 20px;
  }
}

@media (max-width: 768px) {
  .site-header {
    min-height: 60px;
    padding: 0 16px;
  }
  .nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .nav-left {
    gap: 12px;
  }
  .logo-text {
    font-size: 18px;
  }
  .main-nav {
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    background: rgba(10,15,30,0.98);
    padding: 12px 16px 18px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    display: none;
  }
  .main-nav.open {
    display: flex;
  }
  .nav-link {
    padding: 12px 14px;
    font-size: 15px;
  }
  .nav-link.active::after {
    left: 14px;
    right: auto;
    width: 32px;
    bottom: 6px;
  }
  .nav-right {
    gap: 10px;
  }
  .nav-search {
    width: 36px;
    height: 36px;
    padding: 0;
    justify-content: center;
    border-radius: 8px;
    border-color: transparent;
  }
  .nav-search input {
    display: none;
  }
  .nav-search.expanded {
    width: 180px;
    border-radius: 999px;
    padding: 0 14px;
    justify-content: flex-start;
    border-color: var(--primary);
  }
  .nav-search.expanded input {
    display: block;
  }
  .btn-sm {
    padding: 8px 14px;
  }
  .breadcrumb {
    margin-top: 24px;
    padding: 0 16px;
  }
  .article-main {
    padding: 32px 16px 20px;
  }
  .article-title {
    font-size: 28px;
  }
  .article-meta {
    gap: 14px;
    font-size: 13px;
  }
  .article-tags {
    padding: 20px 16px 0;
  }
  .share-bar {
    padding: 14px 16px;
  }
  .recommend-section {
    padding: 48px 16px 16px;
  }
  .not-found-wrap {
    padding-top: 60px;
    padding-bottom: 60px;
  }
  .not-found {
    padding: 60px 20px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
    padding-bottom: 24px;
  }
  .footer-brand p {
    max-width: 100%;
  }
  .back-home {
    padding-bottom: 40px;
  }
}

@media (max-width: 520px) {
  .logo-text {
    font-size: 16px;
  }
  .logo-mark {
    width: 28px;
    height: 28px;
    font-size: 13px;
  }
  .btn-cta.btn-sm {
    display: none;
  }
  .article-content {
    font-size: 15px;
    line-height: 1.75;
  }
  .article-content h2 {
    font-size: 21px;
  }
  .article-content h3 {
    font-size: 18px;
  }
  .recommend-body h4 {
    font-size: 15px;
  }
  .footer-col a {
    font-size: 13px;
  }
}

/* roulang page: category2 */
:root {
  --bg: #0A0F1E;
  --bg-deep: #070B14;
  --panel: rgba(255, 255, 255, 0.04);
  --panel-border: rgba(255, 255, 255, 0.08);
  --panel-border-hover: rgba(61, 159, 255, 0.45);
  --primary: #3D9FFF;
  --accent: #00E0C6;
  --orange: #FF6B35;
  --text-main: #E8EEF9;
  --text-sub: #94A3B8;
  --text-weak: #5B6B80;
  --red: #FF3B30;
  --radius-card: 16px;
  --radius-btn: 10px;
  --radius-input: 8px;
  --radius-tag: 999px;
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.25);
  --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.4);
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
  --space-section: 80px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--text-main);
  line-height: 1.7;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: color .2s ease; }
img { max-width: 100%; display: block; }
button { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
::selection { background: rgba(61, 159, 255, .3); }

/* ========= Header ========= */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 60px;
  background: rgba(10, 15, 30, 0.72);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 1000;
  border-bottom: 1px solid transparent;
  transition: background .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.site-header.scrolled {
  background: rgba(10, 15, 30, 0.92);
  border-bottom: 1px solid rgba(255,255,255,.06);
  box-shadow: 0 8px 30px rgba(0,0,0,.3);
}
.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-left { display: flex; align-items: center; gap: 32px; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-mark {
  width: 32px; height: 32px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  color: #061020;
  font-size: 15px;
  box-shadow: 0 0 18px rgba(61,159,255,.3);
}
.logo-text { font-size: 20px; font-weight: 800; color: var(--text-main); letter-spacing: .5px; }
.main-nav { display: flex; gap: 6px; }
.nav-link {
  padding: 8px 16px;
  font-size: 14px;
  color: var(--text-sub);
  border-radius: 999px;
  position: relative;
  transition: color .2s;
}
.nav-link:hover { color: var(--text-main); }
.nav-link.active { color: var(--primary); background: rgba(61,159,255,.08); }
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
  box-shadow: 0 0 10px rgba(61,159,255,.7);
}
.nav-right { display: flex; align-items: center; gap: 16px; }
.nav-search {
  display: flex; align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 999px;
  padding: 6px 14px;
  color: var(--text-weak);
  transition: border-color .2s, width .3s;
}
.nav-search:focus-within { border-color: var(--primary); }
.nav-search input {
  background: transparent; border: none; outline: none;
  color: var(--text-main);
  font-size: 13px;
  width: 120px;
}
.nav-search input::placeholder { color: var(--text-weak); }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  cursor: pointer;
  font-weight: 700;
  font-size: 14px;
  border-radius: var(--radius-btn);
  padding: 12px 24px;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease, opacity .2s;
}
.btn:focus { outline: 2px solid var(--primary); outline-offset: 2px; }
.btn:active { transform: scale(0.98); }
.btn-cta {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #041018;
  box-shadow: 0 0 20px rgba(61,159,255,.35);
}
.btn-cta:hover { box-shadow: 0 0 28px rgba(61,159,255,.55); filter: brightness(1.08); color: #041018; }
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #041018;
  box-shadow: 0 0 20px rgba(61,159,255,.35);
}
.btn-primary:hover { box-shadow: 0 0 28px rgba(61,159,255,.55); filter: brightness(1.08); color: #041018; }
.btn-outline {
  background: transparent;
  border: 1px solid rgba(255,255,255,.2);
  color: var(--text-main);
}
.btn-outline:hover { border-color: rgba(255,255,255,.35); background: rgba(255,255,255,.05); color: var(--text-main); }
.btn-orange {
  background: var(--orange);
  color: #fff;
  box-shadow: 0 0 20px rgba(255,107,53,.4);
}
.btn-orange:hover { box-shadow: 0 0 28px rgba(255,107,53,.6); filter: brightness(1.08); color: #fff; }
.btn-sm { padding: 8px 16px; font-size: 12px; font-weight: 700; }
.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid rgba(255,255,255,.15);
  color: var(--text-main);
  width: 38px; height: 38px;
  border-radius: 8px;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  cursor: pointer;
  transition: border-color .2s, background .2s;
}
.nav-toggle:hover { border-color: var(--primary); background: rgba(255,255,255,.05); }

/* ========= Category Hero ========= */
.category-hero {
  position: relative;
  margin-top: 60px;
  padding: 90px 0 70px;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.category-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(10,15,30,.94) 35%, rgba(10,15,30,.72) 75%, rgba(10,15,30,.55));
  z-index: 1;
}
.category-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(115deg, transparent 0 24px, rgba(255,255,255,.025) 24px 25px);
  z-index: 1;
  pointer-events: none;
}
.category-hero .container { position: relative; z-index: 2; }
.crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-weak);
  margin-bottom: 34px;
}
.crumb a:hover { color: var(--primary); }
.crumb .sep { color: rgba(255,255,255,.2); }
.category-hero h1 {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--text-main);
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.category-hero h1 em {
  font-style: normal;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.category-hero p {
  font-size: 16px;
  color: var(--text-sub);
  line-height: 1.8;
  max-width: 680px;
  margin-bottom: 40px;
}
.hero-cta-row { display: flex; gap: 16px; flex-wrap: wrap; }

/* ========= Tag Nav ========= */
.category-tags-wrap {
  position: relative;
  background: var(--bg);
  border-bottom: 1px solid rgba(255,255,255,.06);
  padding: 20px 0;
  z-index: 50;
}
.category-tags {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}
.cat-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-sub);
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  transition: all .2s ease;
}
.cat-tag i { font-size: 12px; color: var(--accent); }
.cat-tag:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(61,159,255,.08);
  transform: translateY(-2px);
}
.cat-tag.active {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(61,159,255,.1);
}

/* ========= Alternate List ========= */
.alt-section {
  padding: var(--space-section) 0;
  background: var(--bg);
}
.section-head {
  margin-bottom: 56px;
  max-width: 720px;
}
.section-head .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
}
.section-head .eyebrow::before {
  content: '';
  width: 24px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 2px;
}
.section-head h2 {
  font-size: clamp(22px, 2.4vw, 30px);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 14px;
}
.section-head p {
  font-size: 15px;
  color: var(--text-sub);
  line-height: 1.7;
}
.alt-item {
  display: flex;
  align-items: center;
  gap: 48px;
  margin-bottom: 80px;
  scroll-margin-top: 90px;
}
.alt-item:last-child { margin-bottom: 0; }
.alt-item.reverse { flex-direction: row-reverse; }
.alt-img-col {
  flex: 1;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}
.alt-img-col img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  transition: transform .5s ease;
}
.alt-img-col:hover img { transform: scale(1.05); }
.alt-img-col::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(10,15,30,.35));
}
.alt-img-tag {
  position: absolute;
  top: 16px; left: 16px;
  z-index: 2;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  background: rgba(10,15,30,.65);
  backdrop-filter: blur(8px);
  color: var(--accent);
  border: 1px solid rgba(0,224,198,.25);
}
.alt-content { flex: 1; }
.alt-content .alt-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-weak);
  margin-bottom: 12px;
}
.alt-content .alt-meta span { display: inline-flex; align-items: center; gap: 5px; }
.alt-content .alt-meta i { color: var(--accent); font-size: 11px; }
.alt-content h3 {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 12px;
  color: var(--text-main);
  transition: color .2s;
}
.alt-content h3:hover { color: var(--primary); }
.alt-content p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.85;
  margin-bottom: 20px;
}
.alt-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
  transition: gap .2s ease;
}
.alt-link:hover { gap: 14px; color: var(--accent); }
.alt-link i { font-size: 12px; }

/* ========= Stats Section ========= */
.stats-section {
  background: linear-gradient(135deg, #0B1225, #0E1A30);
  padding: 70px 0;
  position: relative;
  overflow: hidden;
}
.stats-section::before {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: rgba(61,159,255,.14);
  filter: blur(90px);
  top: -120px; right: -80px;
}
.stats-section::after {
  content: '';
  position: absolute;
  width: 300px; height: 300px;
  border-radius: 50%;
  background: rgba(0,224,198,.08);
  filter: blur(80px);
  bottom: -100px; left: -60px;
}
.stats-grid { position: relative; z-index: 2; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat-card {
  background: rgba(255,255,255,.04);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  text-align: center;
  backdrop-filter: blur(12px);
  transition: border-color .2s, transform .2s;
}
.stat-card:hover { border-color: var(--panel-border-hover); transform: translateY(-4px); }
.stat-num {
  font-size: 36px;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.2;
  margin-bottom: 6px;
  font-variant-numeric: tabular-nums;
}
.stat-num i { font-style: normal; color: var(--accent); }
.stat-label { font-size: 13px; color: var(--text-sub); }
.stat-card .stat-icon { color: var(--accent); font-size: 18px; margin-bottom: 10px; }

/* ========= Subscribe Section ========= */
.subscribe-section {
  padding: 80px 0;
  background: var(--bg);
  position: relative;
  overflow: hidden;
}
.subscribe-section::before {
  content: '';
  position: absolute;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(61,159,255,.15), transparent 65%);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}
.subscribe-box {
  position: relative;
  z-index: 2;
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
}
.subscribe-box h2 {
  font-size: clamp(22px, 2.4vw, 30px);
  font-weight: 700;
  margin-bottom: 12px;
}
.subscribe-box p {
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 32px;
  line-height: 1.7;
}
.subscribe-form {
  display: flex;
  gap: 12px;
  align-items: center;
}
.subscribe-form input {
  flex: 1;
  height: 44px;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-input);
  padding: 0 16px;
  color: var(--text-main);
  font-size: 14px;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.subscribe-form input::placeholder { color: var(--text-weak); }
.subscribe-form input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(61,159,255,.15);
}
.subscribe-form.c-error input { border-color: var(--orange); }
.subscribe-form .err-msg {
  font-size: 12px;
  color: var(--orange);
  margin-top: 8px;
  text-align: left;
  display: none;
}
.subscribe-form.c-error .err-msg { display: block; }
@media (max-width: 520px) {
  .subscribe-form { flex-direction: column; }
  .subscribe-form .btn { width: 100%; }
}

/* ========= FAQ ========= */
.faq-section {
  padding: var(--space-section) 0;
  background: var(--bg);
}
.faq-wrap { max-width: 760px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid rgba(255,255,255,.08);
  position: relative;
  transition: background .2s;
}
.faq-item.open {
  background: rgba(255,255,255,.02);
  border-left: 3px solid var(--primary);
  box-shadow: -2px 0 18px rgba(61,159,255,.3);
  border-radius: 0 10px 10px 0;
}
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 20px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  transition: color .2s;
}
.faq-q:hover { color: var(--primary); }
.faq-q .faq-icon {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  flex-shrink: 0;
  transition: all .25s ease;
  color: var(--text-sub);
}
.faq-item.open .faq-icon {
  background: var(--primary);
  border-color: var(--primary);
  color: #041018;
  transform: rotate(90deg);
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  padding: 0 20px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-sub);
  transition: max-height .35s ease, padding .3s ease;
}
.faq-item.open .faq-a {
  max-height: 400px;
  padding: 0 20px 22px;
}

/* ========= CTA Band ========= */
.cta-band {
  padding: 70px 0;
  background: linear-gradient(145deg, #0B1225 0%, #0E1A30 60%, #0B1225 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: '';
  position: absolute;
  width: 420px; height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(61,159,255,.18), transparent 65%);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
}
.cta-band h2 {
  font-size: clamp(24px, 3vw, 30px);
  font-weight: 800;
  margin-bottom: 14px;
  position: relative;
  z-index: 2;
}
.cta-band p {
  font-size: 15px;
  color: var(--text-sub);
  margin-bottom: 32px;
  position: relative;
  z-index: 2;
}
.cta-band .btn { position: relative; z-index: 2; }

/* ========= Footer ========= */
.site-footer {
  background: var(--bg-deep);
  padding: 70px 0 30px;
  border-top: 1px solid rgba(255,255,255,.06);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand p { font-size: 13px; color: var(--text-weak); line-height: 1.8; max-width: 300px; margin-top: 16px; }
.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 18px;
}
.footer-col a {
  display: block;
  font-size: 13px;
  color: var(--text-weak);
  padding: 6px 0;
  transition: color .2s, padding-left .2s;
}
.footer-col a:hover { color: var(--primary); padding-left: 6px; }
.footer-logo { display: flex; align-items: center; gap: 10px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.05);
  padding-top: 24px;
  text-align: center;
  font-size: 12px;
  color: var(--text-weak);
}
.footer-bottom p { margin: 0; }

/* ========= Responsive ========= */
@media (max-width: 1024px) {
  .alt-item, .alt-item.reverse { gap: 32px; }
  .alt-item, .alt-item.reverse { flex-direction: column; }
  .alt-img-col { width: 100%; }
  .alt-img-col img { height: 260px; }
  .alt-content { width: 100%; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 768px) {
  .main-nav { display: none; flex-direction: column; position: absolute; top: 60px; left: 0; right: 0; background: rgba(10,15,30,.97); padding: 16px; border-bottom: 1px solid rgba(255,255,255,.06); }
  .main-nav.open { display: flex; }
  .nav-link { padding: 12px 16px; }
  .nav-search { display: none; }
  .nav-toggle { display: flex; }
  .nav-right .btn { display: flex; }
  .category-hero { padding: 80px 0 60px; }
  .category-hero h1 { font-size: 32px; }
  :root { --space-section: 56px; }
}
@media (max-width: 520px) {
  .nav-right .btn { display: none; }
  .logo-text { font-size: 17px; }
  .category-hero h1 { font-size: 27px; }
  .category-hero p { font-size: 14px; }
  .hero-cta-row { flex-direction: column; }
  .hero-cta-row .btn { width: 100%; }
  .alt-img-col img { height: 210px; }
  .stats-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .cta-band h2 { font-size: 22px; }
}