/* roulang page: index */
/* ========== 设计变量 ========== */
:root {
  --bg-page: #F5F7FA;
  --primary: #3A6FB5;
  --primary-dark: #2D5A94;
  --primary-light: #E8EEF7;
  --primary-ghost-bg: rgba(58, 111, 181, 0.08);
  --accent-green: #10B981;
  --accent-red: #EF4444;
  --accent-amber: #D97706;
  --text-main: #1E293B;
  --text-secondary: #64748B;
  --text-muted: #94A3B8;
  --card-bg: #FFFFFF;
  --border-line: #E2E8F0;
  --disabled-color: #CBD5E1;
  --radius-panel: 16px;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-badge: 999px;
  --shadow-card: 0 1px 3px rgba(15, 23, 42, 0.06), 0 4px 12px rgba(15, 23, 42, 0.05);
  --shadow-hover: 0 8px 24px rgba(15, 23, 42, 0.10);
  --shadow-panel: 0 2px 8px rgba(15, 23, 42, 0.06);
  --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-mono: ui-monospace, "SF Mono", Consolas, monospace;
  --spacing-section-desk: 80px;
  --spacing-section-mobi: 48px;
  --content-max: 1200px;
}
/* ========== Reset & Base ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  background: var(--bg-page);
  color: var(--text-main);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--primary-dark); }
ul, ol { list-style: none; }
button, input { font-family: inherit; font-size: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }
:focus-visible { outline: 3px solid rgba(58, 111, 181, 0.4); outline-offset: 2px; }
.container { max-width: var(--content-max); margin: 0 auto; padding: 0 24px; }
/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: all .25s ease;
  line-height: 1.4;
  white-space: nowrap;
}
.btn i { font-size: 14px; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 2px 6px rgba(58, 111, 181, 0.25); }
.btn-primary:hover { background: var(--accent-amber); color: #fff; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(217, 119, 6, 0.3); }
.btn-primary:active { transform: translateY(1px); }
.btn-ghost { background: transparent; border-color: var(--primary); color: var(--primary); }
.btn-ghost:hover { background: var(--primary-ghost-bg); color: var(--primary-dark); border-color: var(--primary-dark); }
.btn-amber { background: var(--accent-amber); color: #fff; }
.btn-amber:hover { background: #B45309; color: #fff; transform: translateY(-1px); }
.btn:disabled { background: var(--disabled-color); color: #fff; cursor: not-allowed; box-shadow: none; transform: none; }
/* ========== 导航面板 ========== */
.site-header { padding: 20px 0 0; }
.nav-panel {
  background: var(--card-bg);
  border-radius: var(--radius-panel);
  box-shadow: var(--shadow-panel);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  gap: 16px;
  position: relative;
}
.nav-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon {
  width: 38px; height: 38px;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  box-shadow: 0 2px 6px rgba(58, 111, 181, 0.3);
}
.logo-text { font-size: 20px; font-weight: 700; color: var(--text-main); letter-spacing: .5px; }
.nav-links { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.nav-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: var(--radius-btn);
  background: var(--primary-light);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  transition: all .2s ease;
  height: 40px;
  white-space: nowrap;
}
.nav-item i { font-size: 13px; }
.nav-item:hover { background: var(--primary); color: #fff; transform: translateY(-1px); }
.nav-item.active { background: var(--primary); color: #fff; box-shadow: 0 2px 6px rgba(58, 111, 181, 0.3); }
.btn-login { width: 110px; padding: 10px 16px; flex-shrink: 0; }
.burger-btn { display: none; background: none; border: none; width: 42px; height: 42px; border-radius: 8px; background: var(--primary-light); color: var(--primary); font-size: 18px; align-items: center; justify-content: center; transition: all .2s ease; }
.burger-btn:hover { background: var(--primary); color: #fff; }
/* ========== Hero ========== */
.hero-section {
  position: relative;
  background: url('/assets/images/backpic/back-1.png') center / cover no-repeat, linear-gradient(180deg, #f0f5fb 0%, #e8eef7 100%);
  border-radius: var(--radius-panel);
  margin-top: 20px;
  padding: 0;
  overflow: hidden;
  min-height: 500px;
  display: flex;
  align-items: center;
}
.hero-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(135deg, rgba(58, 111, 181, 0.08) 0%, rgba(255, 255, 255, 0.02) 50%, rgba(16, 185, 129, 0.06) 100%);
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
  padding: 48px 0;
  width: 100%;
}
.hero-text .hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(16, 185, 129, 0.12);
  color: var(--accent-green);
  font-size: 13px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: var(--radius-badge);
  margin-bottom: 16px;
}
.hero-text .hero-badge i { font-size: 12px; }
.hero-title {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-main);
  margin-bottom: 16px;
  letter-spacing: .5px;
}
.hero-title span { color: var(--primary); }
.hero-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
  max-width: 480px;
}
.hero-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 28px; }
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--card-bg);
  border: 1px solid var(--border-line);
  padding: 5px 14px;
  border-radius: var(--radius-badge);
  font-size: 13px;
  color: var(--text-secondary);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}
.hero-tag i { color: var(--primary); font-size: 12px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-cover { position: relative; }
.hero-cover img {
  width: 100%;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-hover);
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border: 3px solid rgba(255, 255, 255, 0.6);
}
.cover-play-badge {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 64px; height: 64px;
  background: rgba(58, 111, 181, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 22px;
  box-shadow: 0 4px 16px rgba(58, 111, 181, 0.4);
}
/* ========== 倒计时条 ========== */
.countdown-bar {
  background: var(--card-bg);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 20px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 24px;
  flex-wrap: wrap;
}
.countdown-left { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.countdown-label { font-size: 15px; color: var(--text-secondary); font-weight: 500; }
.countdown-timer { display: flex; align-items: baseline; gap: 4px; font-family: var(--font-mono); font-size: 28px; font-weight: 700; color: var(--accent-green); letter-spacing: 2px; }
.countdown-timer .colon { animation: pulse-colon 1.5s ease infinite; }
.countdown-timer .sec { animation: flash-sec 1s steps(1) infinite; }
@keyframes pulse-colon { 0%, 100% { opacity: 1; } 50% { opacity: .4; } }
@keyframes flash-sec { 0%, 100% { opacity: 1; } 50% { opacity: .5; } }
.countdown-unit { font-size: 13px; color: var(--text-muted); margin-left: 2px; font-family: var(--font-sans); }
.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-red);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 5px 16px;
  border-radius: var(--radius-badge);
}
.live-badge .dot {
  width: 7px; height: 7px;
  background: #fff;
  border-radius: 50%;
  animation: blink 1s ease infinite;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: .3; } }
/* ========== 看点列表 ========== */
.section-spacing { padding: var(--spacing-section-desk) 0; }
.section-spacing-sm { padding: 40px 0; }
.section-header { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 28px; gap: 16px; flex-wrap: wrap; }
.section-header h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-main);
  position: relative;
  padding-bottom: 10px;
}
.section-header h2::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 40px; height: 3px;
  background: var(--primary);
  border-radius: 3px;
}
.section-header p { color: var(--text-secondary); font-size: 14px; max-width: 460px; }
.highlights-list { display: flex; flex-direction: column; gap: 14px; }
.highlight-item {
  display: flex;
  align-items: center;
  gap: 18px;
  background: var(--card-bg);
  border: 1px solid transparent;
  border-radius: var(--radius-card);
  padding: 18px 22px;
  box-shadow: var(--shadow-card);
  transition: all .25s ease;
  min-height: 64px;
}
.highlight-item:hover { background: #F0F4FA; border-color: rgba(58, 111, 181, 0.15); box-shadow: var(--shadow-hover); transform: translateX(4px); }
.highlight-icon {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}
.highlight-text { flex: 1; }
.highlight-text h3 { font-size: 16px; font-weight: 600; color: var(--text-main); margin-bottom: 2px; }
.highlight-text p { font-size: 14px; color: var(--text-secondary); line-height: 1.5; }
.highlight-order { font-family: var(--font-mono); font-size: 14px; color: var(--text-muted); font-weight: 700; flex-shrink: 0; }
/* ========== 提醒订阅区 ========== */
.subscribe-card {
  background: var(--card-bg);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 32px;
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 32px;
  align-items: center;
  border-left: 4px solid var(--primary);
}
.subscribe-text h3 { font-size: 20px; font-weight: 700; color: var(--text-main); margin-bottom: 8px; }
.subscribe-text p { color: var(--text-secondary); font-size: 14px; line-height: 1.6; }
.subscribe-form { display: flex; gap: 10px; }
.subscribe-form input {
  flex: 1;
  padding: 12px 16px;
  border: 1.5px solid var(--border-line);
  border-radius: var(--radius-btn);
  font-size: 14px;
  transition: all .25s ease;
  background: var(--bg-page);
}
.subscribe-form input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(58, 111, 181, 0.15);
  outline: none;
  background: #fff;
}
.subscribe-form input::placeholder { color: var(--text-muted); }
/* ========== 回放入口区 ========== */
.replay-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.replay-card {
  background: var(--card-bg);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: all .3s ease;
  display: flex;
  flex-direction: column;
}
.replay-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
.replay-cover { position: relative; overflow: hidden; aspect-ratio: 16 / 8; }
.replay-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.replay-card:hover .replay-cover img { transform: scale(1.04); }
.replay-tag {
  position: absolute;
  top: 12px; right: 12px;
  background: rgba(217, 119, 6, 0.92);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-badge);
  letter-spacing: .5px;
}
.replay-info { padding: 18px 20px 20px; flex: 1; display: flex; flex-direction: column; }
.replay-info h3 { font-size: 16px; font-weight: 600; color: var(--text-main); margin-bottom: 10px; line-height: 1.4; }
.replay-meta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 14px; }
.replay-meta span { display: inline-flex; align-items: center; gap: 5px; font-size: 13px; color: var(--text-secondary); }
.replay-meta span i { color: var(--primary); font-size: 12px; }
.replay-link { margin-top: auto; color: var(--primary); font-size: 14px; font-weight: 500; display: inline-flex; align-items: center; gap: 6px; }
.replay-link:hover { color: var(--primary-dark); gap: 10px; }
.replay-link i { font-size: 13px; transition: all .2s ease; }
/* ========== 最新资讯 CMS ========== */
.news-section { background: #F0F4FA; padding: var(--spacing-section-desk) 0; }
.news-list { display: flex; flex-direction: column; gap: 16px; max-width: 860px; margin: 0 auto; }
.news-card {
  background: var(--card-bg);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 22px 26px;
  border-left: 3px solid transparent;
  transition: all .25s ease;
  display: block;
}
.news-card:hover { border-left-color: var(--primary); box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.news-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; flex-wrap: wrap; }
.news-cate {
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-badge);
}
.news-time { font-size: 13px; color: var(--text-muted); display: inline-flex; align-items: center; gap: 5px; }
.news-time i { font-size: 11px; }
.news-title { font-size: 17px; font-weight: 600; color: var(--text-main); margin-bottom: 6px; line-height: 1.5; transition: color .2s ease; }
.news-card:hover .news-title { color: var(--primary); }
.news-summary { font-size: 14px; color: var(--text-secondary); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.empty-state {
  background: var(--primary-light);
  border: 1.5px dashed rgba(58, 111, 181, 0.3);
  border-radius: var(--radius-card);
  padding: 48px 20px;
  text-align: center;
  color: var(--text-secondary);
}
.empty-state .empty-icon { font-size: 32px; color: var(--primary); display: block; margin-bottom: 12px; }
.empty-state p { font-size: 15px; }
/* ========== FAQ ========== */
.faq-section { padding: var(--spacing-section-desk) 0; }
.faq-list { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item {
  background: var(--card-bg);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  border: 1px solid transparent;
  transition: border-color .25s ease;
}
.faq-item:hover { border-color: rgba(58, 111, 181, 0.2); }
.faq-question {
  width: 100%;
  padding: 18px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  text-align: left;
}
.faq-question .faq-icon {
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
  transition: transform .2s ease, background .2s ease, color .2s ease;
}
.faq-item.active .faq-icon { transform: rotate(45deg); background: var(--primary); color: #fff; }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .2s ease;
}
.faq-answer-inner { padding: 0 22px 18px; font-size: 14px; color: var(--text-secondary); line-height: 1.7; border-top: 1px solid var(--border-line); padding-top: 14px; }
/* ========== CTA区块 ========== */
.cta-banner {
  background: linear-gradient(120deg, var(--primary) 0%, #4A7FC0 60%, rgba(58, 111, 181, 0.85) 100%);
  border-radius: var(--radius-panel);
  padding: 44px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  box-shadow: 0 8px 24px rgba(58, 111, 181, 0.25);
  flex-wrap: wrap;
  margin-bottom: 80px;
}
.cta-text h2 { color: #fff; font-size: 24px; font-weight: 700; margin-bottom: 6px; }
.cta-text p { color: rgba(255, 255, 255, 0.85); font-size: 14px; line-height: 1.6; }
.cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }
/* ========== 页脚 ========== */
.site-footer { background: #1E293B; padding: 52px 0 0; color: #CBD5E1; margin-top: 20px; }
.footer-grid { display: grid; grid-template-columns: 1.2fr 0.8fr 0.8fr; gap: 40px; padding-bottom: 40px; }
.footer-brand .logo-text { color: #fff; }
.footer-brand p { font-size: 14px; color: #94A3B8; margin-top: 14px; max-width: 300px; line-height: 1.6; }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 600; margin-bottom: 16px; }
.footer-col a { display: block; color: #94A3B8; font-size: 14px; padding: 5px 0; transition: color .2s ease; }
.footer-col a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: #64748B;
}
.footer-bottom a { color: #94A3B8; }
.footer-bottom a:hover { color: #fff; }
/* ========== 响应式 ========== */
@media (max-width: 1023px) {
  .nav-panel { flex-wrap: wrap; }
  .burger-btn { display: flex; }
  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    padding: 8px 0;
    gap: 6px;
  }
  .nav-links.open { display: flex; }
  .nav-item { width: 100%; justify-content: flex-start; height: auto; padding: 12px 16px; }
  .btn-login { width: 100%; }
  .hero-content { grid-template-columns: 1fr; gap: 24px; padding: 32px 20px; }
  .hero-title { font-size: 28px; }
  .hero-section { min-height: auto; }
  .replay-grid { grid-template-columns: 1fr; gap: 18px; }
  .subscribe-card { grid-template-columns: 1fr; padding: 24px; }
  .countdown-bar { padding: 16px 20px; }
  .cta-banner { padding: 32px 28px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .section-spacing { padding: 56px 0; }
  .news-section { padding: 56px 0; }
  .faq-section { padding: 56px 0; }
}
@media (max-width: 767px) {
  .container { padding: 0 16px; }
  .nav-panel { padding: 12px 14px; }
  .logo-text { font-size: 18px; }
  .hero-content { padding: 28px 16px; }
  .hero-title { font-size: 24px; line-height: 1.3; }
  .hero-subtitle { font-size: 14px; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; }
  .hero-tag { font-size: 12px; }
  .countdown-timer { font-size: 22px; }
  .countdown-bar { flex-direction: column; align-items: flex-start; }
  .countdown-left { width: 100%; justify-content: space-between; }
  .countdown-bar .btn { width: 100%; }
  .highlight-item { padding: 14px 16px; gap: 12px; }
  .highlight-order { display: none; }
  .section-header h2 { font-size: 20px; }
  .subscribe-form { flex-direction: column; }
  .subscribe-form .btn { width: 100%; }
  .replay-info { padding: 16px; }
  .news-card { padding: 18px 16px; }
  .faq-question { padding: 16px; font-size: 14px; }
  .cta-banner { padding: 28px 20px; flex-direction: column; text-align: center; }
  .cta-text h2 { font-size: 20px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .section-spacing { padding: 44px 0; }
  .news-section { padding: 44px 0; }
  .faq-section { padding: 44px 0; }
  .cta-banner { margin-bottom: 48px; }
}

/* roulang page: category1 */
:root{
  --primary:#3A6FB5;
  --primary-dark:#2C5A98;
  --primary-light:#E8EEF7;
  --accent:#10B981;
  --warning:#D97706;
  --danger:#EF4444;
  --bg:#F5F7FA;
  --card:#FFFFFF;
  --text:#1E293B;
  --text-sub:#64748B;
  --text-muted:#94A3B8;
  --border:#E2E8F0;
  --disabled:#CBD5E1;
  --footer-bg:#1E293B;
  --footer-text:#CBD5E1;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:8px;
  --shadow-card:0 1px 3px rgba(15,23,42,.06),0 4px 12px rgba(15,23,42,.05);
  --shadow-hover:0 8px 24px rgba(15,23,42,.10);
  --shadow-nav:0 2px 8px rgba(15,23,42,.06);
  --font-sans:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-mono:ui-monospace,"SF Mono",Consolas,monospace;
  --container:1200px;
  --space-section:80px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font-sans);
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-dark);}
button,input{font-family:inherit;font-size:inherit;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:var(--space-section) 0;}
.section-tight{padding:40px 0;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 22px;border-radius:var(--radius-sm);
  font-weight:600;font-size:15px;line-height:1.4;
  border:1px solid transparent;cursor:pointer;
  transition:all .2s ease;white-space:nowrap;
}
.btn:focus-visible{outline:3px solid rgba(58,111,181,.4);outline-offset:2px;}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 4px 12px rgba(58,111,181,.3);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-ghost:hover{background:var(--primary-light);color:var(--primary-dark);}
.btn-amber{background:var(--warning);color:#fff;}
.btn-amber:hover{background:#B85C05;color:#fff;}

/* 标签徽章 */
.badge{
  display:inline-flex;align-items:center;gap:4px;
  padding:3px 12px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.6;
}
.badge-blue{background:var(--primary-light);color:var(--primary);}
.badge-green{background:#D1FAE5;color:#047857;}
.badge-amber{background:#FEF3C7;color:#B45309;}
.badge-red{background:#FEE2E2;color:#B91C1C;}
.live-dot{
  display:inline-block;width:8px;height:8px;border-radius:50%;
  background:var(--danger);margin-right:6px;
  animation:pulse 1.2s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.5;transform:scale(.85);}}

/* ===== Header 导航面板 ===== */
.site-header{
  background:var(--bg);
  padding:16px 0 0;
  position:relative;
  z-index:100;
}
.nav-panel{
  background:var(--card);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-nav);
  display:flex;align-items:center;
  padding:10px 20px;
  gap:16px;
  border:1px solid var(--border);
}
.nav-logo{
  display:flex;align-items:center;gap:10px;
  flex-shrink:0;
}
.logo-icon{
  width:38px;height:38px;border-radius:10px;
  background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;
}
.logo-text{
  font-size:20px;font-weight:700;color:var(--text);
  letter-spacing:.5px;
}
.nav-links{
  display:flex;align-items:center;gap:8px;
  flex:1;justify-content:center;
}
.nav-item{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 16px;border-radius:var(--radius-sm);
  background:transparent;color:var(--text-sub);
  font-size:14px;font-weight:600;
  transition:all .2s ease;
  border:1px solid transparent;
}
.nav-item:hover{
  background:var(--primary-light);color:var(--primary);
}
.nav-item.active{
  background:var(--primary);color:#fff;
}
.burger-btn{
  display:none;
  width:40px;height:40px;border-radius:8px;
  border:1px solid var(--border);background:#fff;
  color:var(--text);font-size:18px;
  cursor:pointer;align-items:center;justify-content:center;
}
.burger-btn:focus-visible{outline:3px solid rgba(58,111,181,.4);}
.btn-login{
  padding:9px 18px;
  flex-shrink:0;
}

/* ===== 页脚 ===== */
.site-footer{
  background:var(--footer-bg);
  color:var(--footer-text);
  padding:48px 0 24px;
  margin-top:80px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr;
  gap:40px;
  padding-bottom:32px;
  border-bottom:1px solid rgba(203,213,225,.15);
}
.footer-brand .logo-text{color:#fff;font-size:22px;}
.footer-brand p{color:var(--footer-text);font-size:14px;line-height:1.8;margin-top:12px;max-width:340px;}
.footer-col h4{
  color:#fff;font-size:15px;font-weight:600;
  margin-bottom:14px;
}
.footer-col a{
  display:block;color:var(--footer-text);
  font-size:14px;padding:5px 0;
  transition:color .2s;
}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  padding-top:24px;
  display:flex;justify-content:space-between;align-items:center;
  flex-wrap:wrap;gap:8px;
}
.footer-bottom p{font-size:13px;color:var(--footer-text);}
.footer-bottom a{color:var(--footer-text);}
.footer-bottom a:hover{color:#fff;}

/* ===== Hero 分类页横幅 ===== */
.page-hero{
  position:relative;
  background:linear-gradient(135deg, rgba(255,255,255,.92) 0%, rgba(232,238,247,.88) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding:72px 0 64px;
  border-bottom:1px solid var(--border);
}
.page-hero-inner{
  max-width:760px;
}
.crumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--text-sub);
  margin-bottom:20px;
}
.crumb a{color:var(--text-sub);}
.crumb a:hover{color:var(--primary);}
.crumb i{font-size:11px;color:var(--text-muted);}
.crumb .cur{color:var(--primary);font-weight:600;}
.page-hero h1{
  font-size:36px;font-weight:700;color:var(--text);
  line-height:1.3;margin-bottom:14px;
}
.page-hero h1 span{color:var(--primary);}
.page-hero .subtitle{
  font-size:17px;color:var(--text-sub);
  line-height:1.8;max-width:640px;
}
.hero-tags{
  display:flex;gap:10px;margin-top:24px;flex-wrap:wrap;
}

/* ===== 左右分栏主体 ===== */
.layout-split{
  display:grid;grid-template-columns:2fr 1fr;
  gap:32px;align-items:start;
}
.card{
  background:var(--card);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-card);
  border:1px solid var(--border);
  padding:24px;
  transition:box-shadow .25s ease,transform .25s ease;
}
.main-content{
  display:flex;flex-direction:column;gap:32px;
}
.sidebar{
  display:flex;flex-direction:column;gap:24px;
  position:sticky;top:16px;
}

/* 内容块标题 */
.block-title{
  font-size:22px;font-weight:700;color:var(--text);
  margin-bottom:8px;
  display:flex;align-items:center;gap:10px;
}
.block-title i{
  color:var(--primary);
  font-size:20px;
}
.block-desc{
  color:var(--text-sub);font-size:14px;
  margin-bottom:20px;
}

/* 登录方式卡片 */
.method-list{
  display:grid;grid-template-columns:1fr 1fr;
  gap:16px;
}
.method-item{
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:20px;
  transition:all .2s ease;
}
.method-item:hover{
  border-color:var(--primary);
  box-shadow:var(--shadow-hover);
  transform:translateY(-2px);
}
.method-icon{
  width:44px;height:44px;border-radius:12px;
  background:var(--primary-light);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:18px;margin-bottom:14px;
}
.method-item h3{
  font-size:16px;font-weight:600;color:var(--text);
  margin-bottom:6px;
}
.method-item p{
  font-size:13px;color:var(--text-sub);line-height:1.7;
}

/* 步骤流程 */
.steps{
  display:flex;flex-direction:column;gap:0;
}
.step-row{
  display:flex;gap:16px;position:relative;
  padding:14px 0;
}
.step-row:not(:last-child)::after{
  content:'';position:absolute;left:19px;top:56px;bottom:-2px;
  width:2px;background:var(--border);
}
.step-num{
  width:40px;height:40px;border-radius:50%;
  background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:15px;flex-shrink:0;
  position:relative;z-index:1;
}
.step-body{
  padding-top:2px;
}
.step-body h3{
  font-size:16px;font-weight:600;color:var(--text);
  margin-bottom:4px;
}
.step-body p{
  font-size:14px;color:var(--text-sub);line-height:1.7;
}

/* 安全提示 */
.tip-box{
  display:flex;gap:14px;
  background:#F0FDF4;
  border:1px solid #BBF7D0;
  border-radius:var(--radius-md);
  padding:18px;
  margin-top:16px;
}
.tip-box i{
  color:var(--accent);font-size:22px;flex-shrink:0;margin-top:2px;
}
.tip-box h4{
  font-size:15px;font-weight:600;color:var(--text);
  margin-bottom:4px;
}
.tip-box p{
  font-size:13px;color:var(--text-sub);line-height:1.7;
}

/* 侧边栏卡片 */
.side-card{
  background:var(--card);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-card);
  border:1px solid var(--border);
  padding:20px;
}
.side-card h3{
  font-size:16px;font-weight:700;color:var(--text);
  margin-bottom:14px;
  padding-bottom:10px;
  border-bottom:1px solid var(--border);
  display:flex;align-items:center;gap:8px;
}
.side-card h3 i{color:var(--primary);font-size:15px;}
.link-list{
  list-style:none;
}
.link-list li{
  border-bottom:1px solid #F1F5F9;
}
.link-list li:last-child{border-bottom:none;}
.link-list a{
  display:flex;align-items:center;gap:10px;
  padding:10px 0;
  font-size:14px;color:var(--text-sub);
  transition:all .2s;
}
.link-list a i{
  width:28px;height:28px;border-radius:8px;
  background:var(--primary-light);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;flex-shrink:0;
}
.link-list a:hover{color:var(--primary);padding-left:4px;}
.hot-list{list-style:none;counter-reset:hot;}
.hot-list li{
  counter-increment:hot;
  padding:9px 0;
  border-bottom:1px solid #F1F5F9;
}
.hot-list li:last-child{border-bottom:none;}
.hot-list a{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14px;color:var(--text-sub);line-height:1.6;
}
.hot-list a::before{
  content:counter(hot, decimal-leading-zero);
  font-family:var(--font-mono);
  font-size:12px;color:var(--primary);
  font-weight:700;margin-top:1px;flex-shrink:0;
}
.hot-list a:hover{color:var(--primary);}
.side-cta{
  background:linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  border:none;color:#fff;
  text-align:center;padding:28px 20px;
}
.side-cta h3{
  color:#fff;border-bottom:none;padding:0;margin-bottom:8px;
  justify-content:center;font-size:18px;
}
.side-cta p{
  font-size:13px;color:rgba(255,255,255,.85);
  margin-bottom:16px;line-height:1.7;
}
.side-cta .btn{
  background:#fff;color:var(--primary);
  width:100%;
}
.side-cta .btn:hover{
  background:var(--primary-light);
}

/* ===== FAQ ===== */
.faq-wrap{
  max-width:860px;
}
.faq-item{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  margin-bottom:12px;
  overflow:hidden;
  transition:box-shadow .2s ease;
}
.faq-item:hover{box-shadow:var(--shadow-card);}
.faq-question{
  display:flex;justify-content:space-between;align-items:center;
  padding:18px 22px;
  cursor:pointer;
  font-size:15px;font-weight:600;color:var(--text);
  user-select:none;
}
.faq-question .faq-icon{
  width:24px;height:24px;border-radius:50%;
  background:var(--primary-light);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;flex-shrink:0;transition:all .2s ease;
}
.faq-item.open .faq-icon{
  background:var(--primary);color:#fff;
  transform:rotate(45deg);
}
.faq-answer{
  max-height:0;overflow:hidden;
  transition:max-height .3s ease;
}
.faq-answer-inner{
  padding:0 22px 18px;
  font-size:14px;color:var(--text-sub);line-height:1.8;
  border-top:1px solid var(--border);
  margin:0 0 0 22px;
  padding-left:0;padding-right:0;
  padding-top:14px;
}

/* ===== CTA 区块 ===== */
.cta-section{
  background:linear-gradient(135deg, rgba(232,238,247,.9) 0%, rgba(255,255,255,.95) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-radius:var(--radius-lg);
  padding:48px 40px;
  text-align:center;
  border:1px solid var(--border);
}
.cta-section h2{
  font-size:26px;font-weight:700;color:var(--text);
  margin-bottom:10px;
}
.cta-section p{
  color:var(--text-sub);font-size:15px;
  max-width:520px;margin:0 auto 24px;line-height:1.7;
}
.cta-btns{
  display:flex;gap:14px;justify-content:center;flex-wrap:wrap;
}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  .nav-panel{flex-wrap:wrap;}
  .nav-links{
    order:3;flex-basis:100%;
    display:none;
    flex-direction:column;align-items:stretch;
    padding-top:12px;
  }
  .nav-links.open{display:flex;}
  .nav-item{justify-content:flex-start;}
  .burger-btn{
    display:flex;
    margin-left:auto;
  }
  .layout-split{grid-template-columns:1fr;}
  .sidebar{
    position:static;
    display:grid;
    grid-template-columns:1fr 1fr;
  }
  .side-cta{grid-column:1/-1;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  :root{--space-section:48px;}
  .container{padding:0 16px;}
  .nav-panel{
    padding:10px 12px;
    gap:10px;
  }
  .logo-text{font-size:18px;}
  .logo-icon{width:34px;height:34px;font-size:14px;}
  .btn-login{display:none;}
  .nav-links.open .btn-login{
    display:flex;width:100%;margin-top:8px;
  }
  .page-hero{padding:48px 0 40px;}
  .page-hero h1{font-size:27px;}
  .page-hero .subtitle{font-size:15px;}
  .method-list{grid-template-columns:1fr;}
  .card{padding:18px;}
  .sidebar{grid-template-columns:1fr;}
  .cta-section{padding:36px 20px;}
  .cta-section h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;text-align:center;}
}

/* roulang page: article */
:root {
  --primary: #3A6FB5;
  --primary-hover: #2E5A94;
  --primary-light: #E8EEF7;
  --green: #10B981;
  --amber: #D97706;
  --red: #EF4444;
  --bg: #F5F7FA;
  --card: #FFFFFF;
  --text: #1E293B;
  --text-secondary: #64748B;
  --text-muted: #94A3B8;
  --border: #E2E8F0;
  --radius-nav: 16px;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-badge: 999px;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 4px 12px rgba(15, 23, 42, 0.05);
  --shadow-hover: 0 8px 24px rgba(15, 23, 42, 0.10);
  --container: 1200px;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover {
  color: var(--primary-hover);
}
ul, ol {
  list-style: none;
}
button {
  border: none;
  cursor: pointer;
  font-family: inherit;
}
input, textarea {
  font-family: inherit;
}
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.site-header {
  background: var(--card);
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}
.nav-panel {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--card);
  border-radius: var(--radius-nav);
  padding: 10px 20px;
  box-shadow: var(--shadow-sm);
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  transition: background 0.2s ease;
}
.logo-text {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.5px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
}
.nav-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 14px;
  border-radius: 8px;
  background: var(--primary-light);
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s ease;
}
.nav-item i {
  font-size: 13px;
}
.nav-item:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(58, 111, 181, 0.25);
}
.nav-item.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(58, 111, 181, 0.25);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-btn);
  font-weight: 600;
  font-size: 15px;
  padding: 10px 22px;
  transition: all 0.2s ease;
  border: none;
  cursor: pointer;
}
.btn:focus-visible {
  outline: 3px solid rgba(58, 111, 181, 0.5);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--amber);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(217, 119, 6, 0.3);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-login {
  flex-shrink: 0;
  width: 110px;
}
.burger-btn {
  display: none;
  background: var(--primary-light);
  border-radius: 8px;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--primary);
  transition: background 0.2s ease, color 0.2s ease;
}
.burger-btn:hover {
  background: var(--primary);
  color: #fff;
}
.breadcrumb {
  padding: 24px 0 8px;
  font-size: 14px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.breadcrumb a {
  color: var(--text-secondary);
}
.breadcrumb a:hover {
  color: var(--primary);
}
.breadcrumb-sep {
  color: var(--border);
  font-size: 12px;
}
.breadcrumb-current {
  color: var(--text);
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.article-main {
  padding: 24px 0 80px;
}
.article-card {
  background: var(--card);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm);
  max-width: 760px;
  margin: 28px auto 0;
  padding: 44px 48px;
}
.article-header {
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}
.article-header h1 {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text);
  letter-spacing: -0.5px;
  margin-bottom: 16px;
}
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  color: var(--text-muted);
  font-size: 14px;
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.meta-item i {
  color: var(--primary);
  font-size: 13px;
}
.article-content {
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
}
.article-content p {
  margin-bottom: 24px;
}
.article-content h2 {
  font-size: 24px;
  font-weight: 700;
  margin: 40px 0 16px;
  color: var(--text);
}
.article-content h3 {
  font-size: 19px;
  font-weight: 600;
  margin: 36px 0 14px;
  color: var(--text);
}
.article-content h4 {
  font-size: 16px;
  font-weight: 600;
  margin: 28px 0 12px;
  color: var(--text);
}
.article-content img {
  max-width: 100%;
  border-radius: var(--radius-card);
  margin: 28px auto;
  box-shadow: var(--shadow-sm);
}
.article-content a {
  color: var(--primary);
  text-decoration: underline;
  text-decoration-color: rgba(58, 111, 181, 0.3);
  text-underline-offset: 3px;
}
.article-content a:hover {
  color: var(--amber);
  text-decoration-color: rgba(217, 119, 6, 0.4);
}
.article-content ul,
.article-content ol {
  margin-bottom: 24px;
  padding-left: 22px;
}
.article-content ul li {
  list-style: disc;
  margin-bottom: 8px;
}
.article-content ol li {
  list-style: decimal;
  margin-bottom: 8px;
}
.article-content blockquote {
  border-left: 4px solid var(--primary);
  background: var(--primary-light);
  padding: 16px 24px;
  margin-bottom: 24px;
  border-radius: 0 8px 8px 0;
  color: var(--text-secondary);
}
.article-content code {
  background: var(--primary-light);
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 14px;
  font-family: ui-monospace, "SF Mono", Consolas, monospace;
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
  font-size: 15px;
}
.article-content th,
.article-content td {
  border: 1px solid var(--border);
  padding: 10px 14px;
  text-align: left;
}
.article-content th {
  background: var(--primary-light);
  font-weight: 600;
}
.not-found {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}
.not-found i {
  font-size: 48px;
  color: var(--border);
  margin-bottom: 16px;
}
.not-found p {
  font-size: 18px;
  margin-bottom: 24px;
  color: var(--text-secondary);
}
.related-section {
  max-width: 1040px;
  margin: 52px auto 0;
}
.related-section h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 24px;
  position: relative;
  padding-left: 14px;
}
.related-section h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 3px;
  width: 4px;
  height: 22px;
  background: var(--primary);
  border-radius: 2px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.related-card {
  background: var(--card);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
}
.related-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.related-thumb {
  position: relative;
  overflow: hidden;
  background: var(--primary-light);
}
.related-thumb img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.related-card:hover .related-thumb img {
  transform: scale(1.04);
}
.related-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-badge);
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.08);
}
.related-body {
  padding: 16px 20px 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.related-body h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.4;
}
.related-body p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 12px;
  flex: 1;
}
.related-btn {
  font-size: 13px;
  color: var(--primary);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color 0.2s ease, gap 0.2s ease;
}
.related-card:hover .related-btn {
  color: var(--amber);
  gap: 8px;
}
.back-row {
  text-align: center;
  margin-top: 48px;
}
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 15px;
  padding: 10px 20px;
  border-radius: var(--radius-btn);
  transition: all 0.2s ease;
}
.back-link:hover {
  color: var(--primary);
  background: var(--primary-light);
}
.site-footer {
  background: #1E293B;
  color: #CBD5E1;
  padding: 64px 0 24px;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 24px;
}
.footer-brand .logo-text {
  color: #fff;
  font-size: 22px;
  font-weight: 700;
}
.footer-brand p {
  margin-top: 12px;
  font-size: 14px;
  line-height: 1.7;
  color: #94A3B8;
  max-width: 320px;
}
.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  color: #94A3B8;
  font-size: 14px;
  padding: 5px 0;
  transition: color 0.2s ease;
}
.footer-col a:hover {
  color: #fff;
}
.footer-bottom {
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 13px;
  color: #64748B;
  text-align: center;
}
.footer-bottom a {
  color: #94A3B8;
}
.footer-bottom a:hover {
  color: #fff;
}
@media (max-width: 1024px) {
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .nav-links {
    gap: 6px;
  }
  .nav-item {
    padding: 8px 10px;
    font-size: 13px;
  }
}
@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }
  .site-header {
    padding: 12px 0;
  }
  .nav-panel {
    flex-wrap: wrap;
    gap: 12px;
    padding: 10px 14px;
  }
  .burger-btn {
    display: flex;
    margin-left: auto;
  }
  .nav-links {
    display: none;
    flex-direction: column;
    width: 100%;
    gap: 8px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
  }
  .nav-links.open {
    display: flex;
  }
  .nav-item {
    width: 100%;
    justify-content: flex-start;
    padding: 12px 16px;
    font-size: 14px;
  }
  .btn-login {
    width: 100%;
    margin-top: 4px;
  }
  .article-main {
    padding: 16px 0 48px;
  }
  .breadcrumb {
    padding: 16px 0 4px;
    font-size: 13px;
    gap: 6px;
  }
  .breadcrumb-current {
    max-width: 160px;
  }
  .article-card {
    padding: 24px 20px;
    margin-top: 16px;
    border-radius: 10px;
  }
  .article-header h1 {
    font-size: 24px;
  }
  .article-meta {
    gap: 12px;
    font-size: 13px;
  }
  .article-content {
    font-size: 15px;
    line-height: 1.85;
  }
  .article-content p {
    margin-bottom: 20px;
  }
  .related-section {
    margin-top: 32px;
  }
  .related-section h2 {
    font-size: 19px;
  }
  .related-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .related-thumb img {
    height: 160px;
  }
  .back-row {
    margin-top: 32px;
  }
  .site-footer {
    padding: 48px 0 20px;
    margin-top: 24px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}
@media (max-width: 520px) {
  .article-header h1 {
    font-size: 20px;
  }
  .related-thumb img {
    height: 140px;
  }
  .article-card {
    padding: 20px 16px;
  }
}

/* roulang page: category2 */
:root {
  --primary: #3A6FB5;
  --primary-dark: #2D5A94;
  --primary-light: #E8EEF7;
  --accent: #10B981;
  --warning: #D97706;
  --danger: #EF4444;
  --bg: #F5F7FA;
  --text: #1E293B;
  --text-secondary: #64748B;
  --text-muted: #94A3B8;
  --card-bg: #FFFFFF;
  --border: #E2E8F0;
  --disabled: #CBD5E1;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 3px rgba(15,23,42,0.06), 0 4px 12px rgba(15,23,42,0.05);
  --shadow-hover: 0 8px 24px rgba(15,23,42,0.10);
  --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-mono: ui-monospace, "SF Mono", Consolas, monospace;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-sans); background: var(--bg); color: var(--text); line-height: 1.7; font-size: 15px; -webkit-font-smoothing: antialiased; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }
input { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-head { text-align: center; margin-bottom: 48px; }
.section-head h2 { font-size: 26px; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.section-head p { color: var(--text-secondary); font-size: 15px; max-width: 640px; margin: 0 auto; }
h1, h2, h3, h4 { line-height: 1.3; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-weight: 600; font-size: 15px; border-radius: var(--radius-sm); padding: 12px 24px; border: 1px solid transparent; transition: all .2s ease; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--warning); color: #fff; transform: translateY(-1px); box-shadow: 0 6px 16px rgba(217,119,6,.25); }
.btn-primary:active { transform: translateY(0); }
.btn-ghost { background: transparent; border-color: var(--primary); color: var(--primary); }
.btn-ghost:hover { background: var(--primary-light); color: var(--primary); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: #0DA271; color: #fff; }
.btn:focus-visible { outline: 3px solid rgba(58,111,181,.4); outline-offset: 2px; }
.btn-sm { padding: 8px 16px; font-size: 13px; }
.btn-block { width: 100%; }

.site-header { background: var(--bg); padding: 16px 0 8px; }
.nav-panel { display: flex; align-items: center; background: #fff; border-radius: var(--radius-lg); padding: 10px 20px; box-shadow: 0 2px 8px rgba(15,23,42,.06); gap: 16px; flex-wrap: wrap; }
.nav-logo { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.logo-icon { width: 34px; height: 34px; border-radius: 8px; background: var(--primary); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 14px; }
.logo-text { font-size: 20px; font-weight: 700; color: var(--text); letter-spacing: .5px; }
.nav-links { display: flex; gap: 8px; flex: 1; }
.nav-item { display: inline-flex; align-items: center; gap: 6px; padding: 10px 16px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 500; color: var(--text-secondary); background: var(--primary-light); transition: all .2s ease; white-space: nowrap; }
.nav-item i { font-size: 13px; }
.nav-item:hover { background: var(--primary); color: #fff; }
.nav-item.active { background: var(--primary); color: #fff; }
.btn-login { padding: 10px 20px; font-size: 14px; flex-shrink: 0; margin-left: auto; }
.burger-btn { display: none; background: var(--primary-light); border: none; border-radius: var(--radius-sm); width: 40px; height: 40px; font-size: 16px; color: var(--text); align-items: center; justify-content: center; cursor: pointer; flex-shrink: 0; }

.page-banner { background: var(--primary-light) url('/assets/images/backpic/back-1.png') center/cover no-repeat; padding: 80px 0 64px; position: relative; }
.page-banner::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(255,255,255,.9) 0%, rgba(255,255,255,.6) 50%, rgba(232,238,247,.4) 100%); }
.page-banner .container { position: relative; z-index: 1; text-align: center; }
.page-banner h1 { font-size: 36px; font-weight: 700; color: var(--text); margin-bottom: 16px; }
.page-banner h1 span { color: var(--primary); }
.page-banner p { font-size: 17px; color: var(--text-secondary); max-width: 640px; margin: 0 auto 24px; }
.banner-tags { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-bottom: 28px; }
.banner-tags .tag { background: #fff; border: 1px solid var(--border); border-radius: 999px; padding: 6px 18px; font-size: 13px; color: var(--text-secondary); display: inline-flex; align-items: center; gap: 6px; box-shadow: var(--shadow-sm); }
.banner-tags .tag i { color: var(--primary); font-size: 12px; }
.banner-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

.timeline-section { padding: 80px 0; }
.timeline { position: relative; max-width: 900px; margin: 0 auto; }
.timeline::before { content: ''; position: absolute; left: 110px; top: 10px; bottom: 10px; width: 2px; background: linear-gradient(to bottom, transparent, var(--border) 3%, var(--border) 97%, transparent); }
.timeline-item { display: flex; margin-bottom: 28px; position: relative; }
.timeline-time { width: 90px; flex-shrink: 0; text-align: right; padding-right: 20px; font-family: var(--font-mono); font-size: 16px; font-weight: 700; color: var(--primary); padding-top: 22px; line-height: 1.2; }
.timeline-time small { display: block; font-size: 12px; color: var(--text-muted); font-weight: 400; font-family: var(--font-sans); margin-top: 2px; }
.timeline-dot { width: 14px; height: 14px; border-radius: 50%; background: var(--primary); border: 3px solid #fff; box-shadow: 0 0 0 2px var(--primary); flex-shrink: 0; margin-top: 20px; z-index: 1; }
.timeline-card { flex: 1; margin-left: 20px; background: #fff; border-radius: var(--radius-md); padding: 20px 24px; box-shadow: var(--shadow-sm); border: 1px solid var(--border); transition: box-shadow .2s ease, transform .2s ease; }
.timeline-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.timeline-card h3 { font-size: 17px; font-weight: 600; margin-bottom: 6px; display: flex; align-items: center; gap: 8px; }
.timeline-card p { color: var(--text-secondary); font-size: 14px; margin-bottom: 10px; }
.timeline-card .card-meta { display: flex; gap: 14px; font-size: 12px; color: var(--text-muted); flex-wrap: wrap; }
.timeline-card .card-meta span { display: inline-flex; align-items: center; gap: 4px; }
.timeline-card .card-meta i { color: var(--accent); }
.timeline-card .btn { margin-top: 4px; }

.watch-section { padding: 80px 0; background: #fff; }
.watch-grid { display: flex; align-items: center; gap: 48px; max-width: 1000px; margin: 0 auto; }
.watch-text { flex: 1; }
.watch-text h2 { font-size: 26px; font-weight: 700; margin-bottom: 16px; }
.watch-text h2 span { color: var(--primary); }
.watch-text p { color: var(--text-secondary); font-size: 15px; line-height: 1.8; margin-bottom: 20px; }
.watch-list { list-style: none; margin-bottom: 24px; }
.watch-list li { display: flex; align-items: center; gap: 10px; padding: 8px 0; color: var(--text); font-size: 14px; }
.watch-list li i { width: 24px; height: 24px; border-radius: 50%; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 12px; flex-shrink: 0; }
.watch-media { flex: 1; border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-sm); }
.watch-media img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }

.stats-section { padding: 80px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat-card { background: #fff; border-radius: var(--radius-md); padding: 32px 24px; text-align: center; box-shadow: var(--shadow-sm); border: 1px solid var(--border); transition: box-shadow .2s ease, transform .2s ease; }
.stat-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.stat-card .num { font-size: 36px; font-weight: 700; color: var(--primary); font-family: var(--font-mono); line-height: 1.2; }
.stat-card .label { font-size: 13px; color: var(--text-secondary); margin-top: 8px; }

.hot-section { padding: 80px 0; }
.hot-layout { display: flex; flex-direction: column; gap: 24px; max-width: 980px; margin: 0 auto; }
.hot-card { display: flex; background: #fff; border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--border); transition: box-shadow .2s ease, transform .2s ease; }
.hot-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.hot-card .hot-img { width: 280px; flex-shrink: 0; background: var(--primary-light); display: flex; align-items: center; justify-content: center; }
.hot-card .hot-img img { width: 100%; height: 100%; object-fit: cover; }
.hot-card .hot-img .img-placeholder { color: var(--primary); font-size: 36px; }
.hot-card .hot-body { flex: 1; padding: 24px; display: flex; flex-direction: column; justify-content: center; }
.hot-card .hot-body .tag-live { display: inline-flex; align-items: center; gap: 4px; background: rgba(16,185,129,.12); color: var(--accent); font-size: 12px; font-weight: 600; border-radius: 999px; padding: 2px 10px; margin-bottom: 8px; width: fit-content; }
.hot-card .hot-body h3 { font-size: 19px; font-weight: 600; margin-bottom: 8px; }
.hot-card .hot-body p { font-size: 14px; color: var(--text-secondary); margin-bottom: 12px; }
.hot-card .hot-meta { display: flex; gap: 16px; font-size: 13px; color: var(--text-muted); flex-wrap: wrap; }
.hot-card .hot-meta span { display: inline-flex; align-items: center; gap: 5px; }

.faq-section { padding: 80px 0; background: #fff; }
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-md); margin-bottom: 12px; overflow: hidden; box-shadow: 0 1px 2px rgba(15,23,42,.03); transition: box-shadow .2s ease; }
.faq-item:hover { box-shadow: var(--shadow-sm); }
.faq-q { display: flex; align-items: center; justify-content: space-between; padding: 18px 24px; cursor: pointer; font-weight: 600; font-size: 15px; color: var(--text); background: #fff; border: none; width: 100%; text-align: left; transition: color .2s ease; }
.faq-q:hover { color: var(--primary); }
.faq-q .faq-icon { width: 28px; height: 28px; border-radius: 50%; background: var(--primary-light); display: flex; align-items: center; justify-content: center; font-size: 13px; color: var(--primary); flex-shrink: 0; transition: transform .2s ease; }
.faq-item.open .faq-q .faq-icon { transform: rotate(45deg); background: var(--primary); color: #fff; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .2s ease; }
.faq-a-inner { padding: 0 24px 18px; color: var(--text-secondary); font-size: 14px; line-height: 1.8; border-top: 1px solid var(--border); padding-top: 14px; }

.cta-section { padding: 80px 0; }
.cta-box { background: var(--primary) url('/assets/images/backpic/back-2.png') center/cover no-repeat; border-radius: var(--radius-lg); padding: 60px 48px; text-align: center; position: relative; overflow: hidden; }
.cta-box::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(58,111,181,.92), rgba(46,87,145,.85)); }
.cta-box .container { position: relative; z-index: 1; }
.cta-box h2 { font-size: 28px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.cta-box p { font-size: 15px; color: rgba(255,255,255,.85); margin-bottom: 28px; max-width: 520px; margin-left: auto; margin-right: auto; }
.cta-box .btn-group { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.cta-box .btn-light { background: #fff; color: var(--primary); }
.cta-box .btn-light:hover { background: var(--warning); color: #fff; transform: translateY(-1px); }
.cta-box .btn-outline-light { background: transparent; border: 1px solid rgba(255,255,255,.7); color: #fff; }
.cta-box .btn-outline-light:hover { background: rgba(255,255,255,.15); }

.site-footer { background: #1E293B; color: #CBD5E1; padding: 56px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .logo-text { color: #fff; font-size: 22px; display: block; margin-bottom: 12px; }
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 340px; color: var(--disabled); }
.footer-col h4 { color: #fff; font-size: 14px; font-weight: 600; margin-bottom: 16px; }
.footer-col a { display: block; color: var(--disabled); font-size: 14px; padding: 4px 0; transition: color .2s ease; }
.footer-col a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding-top: 24px; text-align: center; font-size: 13px; color: var(--disabled); }
.footer-bottom a { color: var(--disabled); }
.footer-bottom a:hover { color: #fff; }

@media (max-width: 1023px) {
  .burger-btn { display: flex; }
  .nav-links { display: none; position: absolute; top: 100%; left: 0; right: 0; background: #fff; border-radius: var(--radius-md); box-shadow: var(--shadow-hover); padding: 12px; flex-direction: column; z-index: 100; margin-top: 4px; }
  .nav-links.show { display: flex; }
  .nav-panel { position: relative; }
  .nav-item { width: 100%; justify-content: flex-start; }
  .nav-panel .btn-login { margin-left: 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .hot-card { flex-direction: column; }
  .hot-card .hot-img { width: 100%; height: 180px; }
  .watch-grid { flex-direction: column; gap: 32px; }
}
@media (max-width: 767px) {
  .container { padding: 0 16px; }
  .section { padding: 48px 0; }
  .section-head h2 { font-size: 22px; }
  .page-banner { padding: 48px 0 40px; }
  .page-banner h1 { font-size: 28px; }
  .page-banner p { font-size: 15px; }
  .timeline-section { padding: 48px 0; }
  .timeline::before { left: 60px; }
  .timeline-time { width: 40px; font-size: 13px; padding-right: 12px; padding-top: 18px; }
  .timeline-time small { font-size: 10px; }
  .timeline-dot { margin-top: 16px; }
  .timeline-card { margin-left: 12px; padding: 16px; }
  .timeline-card h3 { font-size: 15px; }
  .stats-section { padding: 48px 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .stat-card { padding: 20px 12px; }
  .stat-card .num { font-size: 28px; }
  .hot-section { padding: 48px 0; }
  .watch-section { padding: 48px 0; }
  .faq-section { padding: 48px 0; }
  .cta-section { padding: 48px 0; }
  .cta-box { padding: 40px 24px; }
  .cta-box h2 { font-size: 22px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .nav-panel { padding: 8px 12px; }
  .logo-text { font-size: 17px; }
  .btn-login { padding: 8px 14px; font-size: 13px; }
}

/* roulang page: category3 */
:root {
  --primary: #3a6fb5;
  --primary-dark: #2d5a94;
  --primary-light: #e8eef7;
  --secondary: #10b981;
  --accent: #d97706;
  --danger: #ef4444;
  --bg: #f5f7fa;
  --card: #ffffff;
  --text: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --border: #e2e8f0;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 4px 12px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.10);
  --font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-mono: ui-monospace, "SF Mono", Consolas, monospace;
  --container: 1200px;
  --gap: 80px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
  border: 0;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--primary-dark);
}

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

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

/* ===== Site Header ===== */
.site-header {
  padding-top: 16px;
  padding-bottom: 8px;
}

.nav-panel {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  background: var(--card);
  border-radius: var(--radius-lg);
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.06);
  padding: 10px 20px;
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 20px;
  color: var(--text);
  margin-right: 8px;
}

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

.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background: var(--primary);
  color: #fff;
  border-radius: 10px;
  font-size: 15px;
}

.logo-text {
  font-weight: 800;
  font-size: 20px;
}

.burger-btn {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--primary-light);
  color: var(--primary);
  font-size: 18px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
}

.burger-btn:hover {
  background: var(--primary);
  color: #fff;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 12px;
  flex: 1;
  flex-wrap: wrap;
}

.nav-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--primary-light);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 600;
  min-width: 80px;
  height: 40px;
  padding: 0 16px;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.nav-item i {
  font-size: 13px;
}

.nav-item:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(58, 111, 181, 0.25);
}

.nav-item.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(58, 111, 181, 0.30);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 14px;
  transition: all 0.2s ease;
  cursor: pointer;
  border: 2px solid transparent;
}

.btn:focus-visible {
  outline: 3px solid rgba(58, 111, 181, 0.4);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  padding: 10px 22px;
  box-shadow: 0 4px 12px rgba(58, 111, 181, 0.25);
}

.btn-primary:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(217, 119, 6, 0.30);
}

.btn-primary:active {
  transform: translateY(1px);
}

.btn-ghost {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
  padding: 9px 22px;
}

.btn-ghost:hover {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary);
}

.btn-login {
  white-space: nowrap;
  width: 110px;
  padding: 10px 0;
  justify-content: center;
}

/* ===== Hero ===== */
.page-hero {
  position: relative;
  padding: 80px 0 64px;
  background: linear-gradient(180deg, rgba(58, 111, 181, 0.08) 0%, rgba(245, 247, 250, 0) 60%), url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  border-radius: 0;
  margin-top: 8px;
}

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

.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-copy {
  padding: 16px 0;
}

.hero-copy h1 {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--text);
  margin-bottom: 16px;
}

.hero-copy h1 span {
  color: var(--primary);
}

.hero-copy p {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 540px;
  margin-bottom: 20px;
  line-height: 1.9;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.hero-tags .tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(255, 255, 255, 0.85);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
}

.hero-tags .tag i {
  color: var(--primary);
  font-size: 12px;
}

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

.hero-media {
  display: flex;
  justify-content: flex-end;
}

.hero-media img {
  width: 100%;
  max-width: 520px;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

/* ===== Section common ===== */
.section-block {
  padding: var(--gap) 0;
}

.section-block + .section-block {
  padding-top: 0;
}

.section-title-wrap {
  text-align: center;
  margin-bottom: 48px;
}

.section-title-wrap .subtitle {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--primary);
  background: var(--primary-light);
  padding: 5px 16px;
  border-radius: 999px;
  margin-bottom: 14px;
  text-transform: uppercase;
}

.section-title-wrap h2 {
  font-size: 26px;
  font-weight: 800;
  color: var(--text);
  line-height: 1.35;
  margin-bottom: 12px;
}

.section-title-wrap p {
  font-size: 15px;
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ===== Replay Cards (交替大卡) ===== */
.replay-cards {
  padding-top: 40px;
}

.replay-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 44px;
  align-items: center;
  background: var(--card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 32px;
  margin-bottom: 32px;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.replay-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.replay-card:nth-child(even) .replay-media {
  order: -1;
}

.replay-content .replay-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 800;
  font-size: 15px;
  border-radius: 12px;
  margin-bottom: 16px;
}

.replay-content h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  line-height: 1.4;
}

.replay-content p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.replay-content .replay-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.replay-content .replay-meta span {
  font-size: 13px;
  color: var(--text-muted);
  background: var(--bg);
  padding: 4px 12px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.replay-content .replay-meta i {
  font-size: 11px;
  color: var(--primary);
}

.replay-media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
}

.replay-media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.replay-media:hover img {
  transform: scale(1.03);
}

.replay-media .play-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(16, 185, 129, 0.92);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.35);
}

/* ===== Stats ===== */
.stats-section {
  background: var(--card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 48px 32px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.stat-item {
  text-align: center;
  padding: 16px 8px;
}

.stat-item .stat-num {
  font-family: var(--font-mono);
  font-size: 36px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
  margin-bottom: 6px;
}

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

.stat-divider {
  width: 1px;
  background: var(--border);
}

/* ===== Scenarios ===== */
.scenarios-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.scenario-item {
  display: flex;
  gap: 18px;
  background: var(--card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 24px;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.scenario-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.scenario-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  background: var(--primary-light);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 20px;
}

.scenario-item h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}

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

/* ===== How To ===== */
.howto-step {
  display: flex;
  background: var(--card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 24px;
  margin-bottom: 16px;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.howto-step:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.howto-num {
  font-family: var(--font-mono);
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  background: var(--primary);
  color: #fff;
  font-size: 17px;
  font-weight: 800;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 18px;
}

.howto-step h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 5px;
}

.howto-step p {
  font-size: 14px;
  color: var(--text-secondary);
}

/* ===== CTA ===== */
.cta-section {
  background: var(--primary);
  border-radius: var(--radius-lg);
  padding: 56px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section h2 {
  font-size: 26px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 10px;
}

.cta-section p {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 25px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-btn {
  background: #fff;
  color: var(--primary);
  font-weight: 800;
  padding: 12px 34px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
}

.cta-btn:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(217, 119, 6, 0.35);
}

.cta-btn:focus-visible {
  outline: 3px solid rgba(255, 255, 255, 0.4);
  outline-offset: 2px;
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: var(--card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  margin-bottom: 14px;
  overflow: hidden;
  transition: box-shadow 0.2s ease;
}

.faq-item.open {
  box-shadow: var(--shadow-md);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  transition: color 0.2s ease;
  list-style: none;
}

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

.faq-question .faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 8px;
  font-size: 14px;
  transition: all 0.2s ease;
}

.faq-item[open] .faq-question .faq-icon {
  background: var(--primary);
  color: #fff;
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 24px 20px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.8;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

/* ===== Footer ===== */
.site-footer {
  background: #1e293b;
  color: #cbd5e1;
  margin-top: var(--gap);
  padding: 56px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 24px;
}

.footer-brand .logo-text {
  font-size: 22px;
  color: #fff;
  display: inline-block;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: #cbd5e1;
  max-width: 360px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  color: #cbd5e1;
  font-size: 14px;
  line-height: 2.2;
  transition: color 0.2s ease;
}

.footer-col a:hover {
  color: #fff;
  text-decoration: underline;
}

.footer-bottom {
  text-align: center;
  font-size: 13px;
  color: #94a3b8;
}

.footer-bottom a {
  color: #cbd5e1;
}

.footer-bottom a:hover {
  color: #fff;
}

/* ===== Responsive ===== */
@media screen and (max-width: 1023px) {
  .nav-links {
    margin-left: 0;
  }

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

  .hero-media {
    justify-content: center;
  }

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

  .replay-card {
    grid-template-columns: 1fr;
    padding: 24px;
  }

  .replay-card:nth-child(even) .replay-media {
    order: 0;
  }

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

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

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

  .section-block {
    padding: 48px 0;
  }

  .nav-panel {
    padding: 10px 16px;
    flex-wrap: wrap;
    position: relative;
  }

  .burger-btn {
    display: flex;
    margin-left: auto;
  }

  .btn-login {
    display: none;
  }

  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--border);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links .nav-item {
    justify-content: flex-start;
    width: 100%;
    height: 44px;
  }

  .nav-links .btn-login {
    display: flex;
    width: 100%;
    margin-top: 6px;
  }

  .page-hero {
    padding: 48px 0;
  }

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

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

  .hero-actions .btn {
    width: calc(50% - 7px);
  }

  .section-title-wrap h2 {
    font-size: 22px;
  }

  .section-title-wrap p {
    font-size: 14px;
  }

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

  .stat-item .stat-num {
    font-size: 28px;
  }

  .replay-card {
    padding: 18px;
    gap: 20px;
  }

  .replay-content h3 {
    font-size: 18px;
  }

  .replay-content p {
    font-size: 14px;
  }

  .scenario-item {
    padding: 18px;
    flex-direction: column;
    gap: 12px;
  }

  .howto-step {
    padding: 18px;
  }

  .cta-section {
    padding: 40px 24px;
    border-radius: var(--radius-md);
  }

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

  .cta-btn {
    width: 100%;
    justify-content: center;
  }

  .faq-question {
    padding: 16px 18px;
    font-size: 15px;
  }

  .faq-answer {
    padding: 0 18px 16px;
  }

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

@media screen and (max-width: 520px) {
  .hero-actions .btn {
    width: 100%;
  }

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

  .stat-item {
    padding: 12px 4px;
  }

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

  .hero-tags .tag {
    font-size: 12px;
    padding: 4px 10px;
  }

  .replay-meta span {
    font-size: 12px;
  }
}

/* roulang page: category4 */
:root {
    --primary: #3A6FB5;
    --primary-dark: #2F5A94;
    --primary-light: #E8EEF7;
    --secondary: #10B981;
    --accent: #D97706;
    --danger: #EF4444;
    --bg: #F5F7FA;
    --text: #1E293B;
    --text-2: #64748B;
    --text-3: #94A3B8;
    --card: #FFFFFF;
    --border: #E2E8F0;
    --disabled: #CBD5E1;
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --shadow-1: 0 1px 3px rgba(15, 23, 42, 0.06), 0 4px 12px rgba(15, 23, 42, 0.05);
    --shadow-2: 0 8px 24px rgba(15, 23, 42, 0.10);
    --shadow-nav: 0 2px 8px rgba(15, 23, 42, 0.06);
  }

  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body {
    font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 16px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
  }
  img { max-width: 100%; display: block; }
  a { color: var(--primary); text-decoration: none; transition: color .2s ease; }
  a:hover { color: var(--primary-dark); }
  button { font-family: inherit; cursor: pointer; border: none; background: none; }
  ul, ol { list-style: none; }

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

  /* ===== Buttons ===== */
  .btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    border-radius: var(--radius-sm); padding: 12px 26px;
    font-size: 15px; font-weight: 600; line-height: 1.2;
    border: 2px solid transparent;
    transition: all .25s ease; cursor: pointer;
    white-space: nowrap;
  }
  .btn:focus-visible { outline: 3px solid rgba(58, 111, 181, .5); outline-offset: 2px; }
  .btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
  .btn-primary:hover { background: var(--accent); color: #fff; border-color: var(--accent); transform: translateY(-2px); box-shadow: var(--shadow-2); }
  .btn-primary:active { transform: translateY(0); }
  .btn-ghost { background: transparent; border-color: var(--primary); color: var(--primary); }
  .btn-ghost:hover { background: var(--primary-light); color: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-1); }
  .btn-ghost:active { transform: translateY(0); }
  .btn-lg { padding: 15px 36px; font-size: 16px; border-radius: 10px; }
  .btn-block { width: 100%; }
  .btn .fa-solid, .btn .fa-regular { font-size: 14px; }

  /* ===== Header ===== */
  .site-header { padding: 20px 0 4px; }
  .nav-panel {
    display: flex; align-items: center; gap: 20px;
    background: var(--card); border-radius: var(--radius-lg);
    box-shadow: var(--shadow-nav); padding: 10px 20px;
  }
  .nav-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
  .logo-icon {
    width: 38px; height: 38px; border-radius: 10px;
    background: var(--primary); color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-size: 16px;
  }
  .logo-text { font-size: 20px; font-weight: 700; color: var(--text); letter-spacing: .5px; }
  .nav-links { display: flex; align-items: center; gap: 8px; flex: 1; justify-content: center; }
  .nav-item {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 12px; border-radius: 8px;
    background: var(--primary-light); color: var(--text);
    font-size: 14px; font-weight: 500;
    transition: all .22s ease; min-height: 40px;
  }
  .nav-item i { font-size: 13px; opacity: .85; }
  .nav-item:hover { background: var(--primary); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-1); }
  .nav-item.active { background: var(--primary); color: #fff; font-weight: 600; box-shadow: 0 2px 8px rgba(58, 111, 181, .3); }
  .btn-login {
    padding: 10px 20px; font-size: 14px; border-radius: 8px;
    flex-shrink: 0; min-width: 110px; justify-content: center;
  }
  .burger-btn { display: none; font-size: 22px; color: var(--text); padding: 8px; border-radius: 8px; }
  .burger-btn:hover { background: var(--primary-light); }

  /* ===== Page Hero ===== */
  .page-hero {
    position: relative; padding: 80px 0 72px;
    background: linear-gradient(180deg, rgba(58, 111, 181, .08) 0%, rgba(245, 247, 250, 0) 100%);
    overflow: hidden;
  }
  .page-hero::before {
    content: ''; position: absolute; inset: 0;
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover; background-position: center;
    opacity: .35; pointer-events: none;
  }
  .page-hero .container { position: relative; z-index: 1; text-align: center; }
  .hero-tag {
    display: inline-flex; align-items: center; gap: 6px;
    background: var(--primary-light); color: var(--primary);
    padding: 6px 16px; border-radius: 999px;
    font-size: 13px; font-weight: 600; margin-bottom: 20px;
  }
  .hero-tag i { font-size: 12px; }
  .page-hero h1 {
    font-size: 36px; font-weight: 800; color: var(--text);
    letter-spacing: 2px; line-height: 1.2; margin-bottom: 14px;
  }
  .page-hero h1 span { color: var(--primary); }
  .hero-subtitle {
    max-width: 640px; margin: 0 auto 24px;
    font-size: 16px; color: var(--text-2); line-height: 1.8;
  }
  .hero-meta { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-bottom: 30px; }
  .hero-badge {
    display: inline-flex; align-items: center; gap: 6px;
    background: var(--card); border: 1px solid var(--border);
    padding: 6px 14px; border-radius: 999px;
    font-size: 13px; color: var(--text); box-shadow: var(--shadow-1);
  }
  .hero-badge i { color: var(--secondary); }
  .hero-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

  /* ===== Section 通用 ===== */
  .section { padding: 72px 0; }
  .section-head { text-align: center; margin-bottom: 48px; }
  .section-head h2 {
    font-size: 26px; font-weight: 700; color: var(--text);
    margin-bottom: 10px; letter-spacing: 1px;
  }
  .section-head h2::after {
    content: ''; display: block; width: 48px; height: 4px;
    background: var(--primary); border-radius: 4px; margin: 12px auto 0;
  }
  .section-head p { color: var(--text-2); font-size: 15px; max-width: 560px; margin: 0 auto; }

  /* ===== Stats ===== */
  .stats-section { padding: 16px 0 0; }
  .stats-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
    background: var(--card); border-radius: var(--radius-lg);
    box-shadow: var(--shadow-1); padding: 32px 24px;
  }
  .stat-item { text-align: center; padding: 8px 0; }
  .stat-num {
    font-family: ui-monospace, "SF Mono", Consolas, monospace;
    font-size: 32px; font-weight: 800; color: var(--primary);
    display: block; line-height: 1.2;
  }
  .stat-label { font-size: 13px; color: var(--text-2); margin-top: 4px; display: block; }

  /* ===== Benefits 2列宽幅网格 ===== */
  .benefits-section { background: var(--bg); padding: 72px 0; }
  .benefits-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
  .benefit-card {
    background: var(--card); border-radius: var(--radius-md);
    box-shadow: var(--shadow-1); overflow: hidden;
    display: flex; flex-direction: column;
    transition: transform .25s ease, box-shadow .25s ease;
    border: 1px solid rgba(226, 232, 240, .6);
  }
  .benefit-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-2); }
  .benefit-img { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: var(--primary-light); }
  .benefit-img img { width: 100%; height: 100%; object-fit: cover; }
  .benefit-tag {
    position: absolute; top: 14px; right: 14px;
    background: var(--accent); color: #fff;
    font-size: 12px; font-weight: 600; padding: 4px 12px;
    border-radius: 999px; box-shadow: 0 2px 8px rgba(217, 119, 6, .3);
  }
  .benefit-tag.hot { background: var(--danger); box-shadow: 0 2px 8px rgba(239, 68, 68, .3); }
  .benefit-body { padding: 24px 24px 28px; flex: 1; }
  .benefit-body h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; color: var(--text); }
  .benefit-body p { font-size: 14px; color: var(--text-2); line-height: 1.7; }
  .benefit-link {
    display: inline-flex; align-items: center; gap: 6px;
    margin-top: 14px; font-size: 14px; font-weight: 600;
    color: var(--primary);
  }
  .benefit-link:hover { color: var(--primary-dark); }
  .benefit-link i { transition: transform .2s ease; }
  .benefit-link:hover i { transform: translateX(4px); }

  /* ===== Plans ===== */
  .plans-section { padding: 72px 0; }
  .plans-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; max-width: 880px; margin: 0 auto; }
  .plan-card {
    background: var(--card); border-radius: var(--radius-lg);
    box-shadow: var(--shadow-1); padding: 32px;
    border: 2px solid transparent; position: relative;
    transition: transform .25s ease, box-shadow .25s ease;
  }
  .plan-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-2); }
  .plan-card.featured { border-color: var(--primary); }
  .plan-flag {
    position: absolute; top: -12px; right: 24px;
    background: var(--primary); color: #fff;
    font-size: 12px; font-weight: 700; padding: 4px 14px;
    border-radius: 999px; letter-spacing: 1px;
  }
  .plan-head { text-align: center; padding-bottom: 24px; border-bottom: 1px solid var(--border); margin-bottom: 24px; }
  .plan-head h3 { font-size: 20px; font-weight: 700; margin-bottom: 4px; }
  .plan-head p { font-size: 13px; color: var(--text-2); }
  .plan-price {
    font-family: ui-monospace, "SF Mono", Consolas, monospace;
    font-size: 42px; font-weight: 800; color: var(--primary);
    margin-top: 16px; line-height: 1;
  }
  .plan-price span { font-size: 14px; color: var(--text-3); font-weight: 400; }
  .plan-list { margin-bottom: 28px; }
  .plan-list li {
    display: flex; align-items: flex-start; gap: 10px;
    padding: 7px 0; font-size: 14px; color: var(--text);
  }
  .plan-list li i { color: var(--secondary); margin-top: 3px; font-size: 14px; }
  .plan-list li.disable { color: var(--text-3); }
  .plan-list li.disable i { color: var(--disabled); }

  /* ===== Process ===== */
  .process-section { background: var(--card); padding: 72px 0; }
  .process-steps { display: flex; align-items: stretch; justify-content: center; gap: 12px; max-width: 960px; margin: 0 auto; }
  .step-item {
    flex: 1; text-align: center; padding: 36px 24px;
    background: var(--bg); border-radius: var(--radius-lg);
    border: 1px solid var(--border); position: relative;
    transition: box-shadow .25s ease;
  }
  .step-item:hover { box-shadow: var(--shadow-1); }
  .step-num {
    width: 52px; height: 52px; border-radius: 50%;
    background: var(--primary); color: #fff;
    font-size: 20px; font-weight: 700; line-height: 52px;
    margin: 0 auto 18px; box-shadow: 0 4px 14px rgba(58, 111, 181, .3);
  }
  .step-item h3 { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
  .step-item p { font-size: 13px; color: var(--text-2); line-height: 1.6; }
  .step-arrow {
    display: flex; align-items: center; font-size: 22px; color: var(--text-3);
    flex-shrink: 0; padding: 0 4px;
  }

  /* ===== Scenario ===== */
  .scenario-section { padding: 72px 0; }
  .scenario-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
  .scenario-card {
    background: var(--card); border-radius: var(--radius-lg);
    box-shadow: var(--shadow-1); overflow: hidden;
    display: flex; flex-direction: column;
    transition: transform .25s ease, box-shadow .25s ease;
    border: 1px solid rgba(226, 232, 240, .6);
  }
  .scenario-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-2); }
  .scenario-img { aspect-ratio: 16 / 9; overflow: hidden; background: var(--primary-light); }
  .scenario-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
  .scenario-card:hover .scenario-img img { transform: scale(1.04); }
  .scenario-body { padding: 24px 24px 28px; }
  .scenario-body h3 { font-size: 18px; font-weight: 600; margin-bottom: 6px; }
  .scenario-body p { font-size: 14px; color: var(--text-2); line-height: 1.6; }

  /* ===== FAQ ===== */
  .faq-section { background: var(--bg); padding: 72px 0; }
  .faq-list { max-width: 780px; margin: 0 auto; }
  .faq-item {
    background: var(--card); border-radius: var(--radius-md);
    box-shadow: var(--shadow-1); margin-bottom: 14px;
    border: 1px solid rgba(226, 232, 240, .6);
    overflow: hidden; transition: box-shadow .2s ease;
  }
  .faq-item.open { box-shadow: var(--shadow-2); }
  .faq-question {
    width: 100%; display: flex; justify-content: space-between; align-items: center;
    padding: 20px 24px; font-size: 15px; font-weight: 600; color: var(--text);
    text-align: left; transition: background .2s ease;
  }
  .faq-question:hover { background: var(--primary-light); }
  .faq-icon { width: 28px; height: 28px; border-radius: 50%; background: var(--primary-light); display: flex; align-items: center; justify-content: center; flex-shrink: 0; transition: all .2s ease; }
  .faq-icon i { font-size: 13px; color: var(--primary); transition: transform .2s ease; }
  .faq-item.open .faq-icon { background: var(--primary); }
  .faq-item.open .faq-icon i { transform: rotate(45deg); color: #fff; }
  .faq-answer {
    max-height: 0; overflow: hidden; transition: max-height .25s ease;
  }
  .faq-answer-inner { padding: 0 24px 20px; font-size: 14px; color: var(--text-2); line-height: 1.7; border-top: 1px solid var(--border); padding-top: 16px; }
  .faq-answer-inner a { font-weight: 600; }

  /* ===== CTA ===== */
  .cta-section { padding: 72px 0; }
  .cta-card {
    background: linear-gradient(135deg, rgba(58, 111, 181, .12) 0%, rgba(58, 111, 181, .02) 100%), var(--card);
    border-radius: var(--radius-lg); box-shadow: var(--shadow-1);
    text-align: center; padding: 56px 32px; position: relative;
    overflow: hidden; border: 1px solid rgba(58, 111, 181, .15);
  }
  .cta-card::before {
    content: ''; position: absolute; top: -60px; left: -60px;
    width: 160px; height: 160px; border-radius: 50%;
    background: rgba(58, 111, 181, .06);
  }
  .cta-card::after {
    content: ''; position: absolute; bottom: -80px; right: -40px;
    width: 200px; height: 200px; border-radius: 50%;
    background: rgba(16, 185, 129, .06);
  }
  .cta-card h2 { font-size: 28px; font-weight: 700; margin-bottom: 12px; color: var(--text); position: relative; z-index: 1; }
  .cta-card p { color: var(--text-2); margin-bottom: 30px; font-size: 15px; position: relative; z-index: 1; }
  .cta-card .btn { position: relative; z-index: 1; }

  /* ===== Footer ===== */
  .site-footer {
    background: #1E293B; color: #CBD5E1;
    padding: 64px 0 0; margin-top: 0;
  }
  .footer-grid {
    display: grid; grid-template-columns: 1.4fr 0.8fr 0.8fr; gap: 40px;
    padding-bottom: 40px;
  }
  .footer-brand .logo-text { color: #fff; font-size: 22px; display: block; margin-bottom: 14px; }
  .footer-brand p { font-size: 14px; line-height: 1.8; color: #94A3B8; max-width: 320px; }
  .footer-col h4 {
    color: #fff; font-size: 15px; font-weight: 600; margin-bottom: 16px;
    letter-spacing: 1px;
  }
  .footer-col a {
    display: block; padding: 6px 0; font-size: 14px; color: #CBD5E1;
    transition: color .2s ease, padding-left .2s ease;
  }
  .footer-col a:hover { color: #fff; padding-left: 6px; }
  .footer-bottom {
    border-top: 1px solid rgba(148, 163, 184, .2);
    padding: 20px 0; text-align: center; font-size: 13px; color: #94A3B8;
  }
  .footer-bottom a { color: #CBD5E1; }
  .footer-bottom a:hover { color: #fff; }

  /* ===== Responsive ===== */
  @media (max-width: 1023px) {
    .nav-links { gap: 6px; }
    .nav-item { padding: 8px 10px; font-size: 13px; }
    .btn-login { min-width: 90px; padding: 10px 14px; }
  }

  @media (max-width: 768px) {
    .container { padding: 0 16px; }
    .nav-panel { flex-wrap: wrap; padding: 12px 16px; }
    .burger-btn { display: block; margin-left: auto; }
    .nav-links {
      display: none; flex-direction: column; width: 100%;
      gap: 8px; padding-top: 12px; order: 3;
    }
    .nav-links.open { display: flex; }
    .nav-item { width: 100%; justify-content: flex-start; padding: 12px 14px; }
    .btn-login { order: 2; margin-left: auto; }

    .page-hero { padding: 48px 0 48px; }
    .page-hero h1 { font-size: 28px; }
    .hero-subtitle { font-size: 14px; }
    .hero-actions { flex-direction: column; align-items: center; }
    .hero-actions .btn { width: 100%; max-width: 300px; }

    .section { padding: 48px 0; }
    .section-head { margin-bottom: 32px; }
    .section-head h2 { font-size: 22px; }

    .stats-grid { grid-template-columns: 1fr 1fr; gap: 20px; padding: 24px 16px; }
    .stat-num { font-size: 28px; }

    .benefits-grid { grid-template-columns: 1fr; }
    .benefit-body { padding: 18px; }

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

    .process-steps { flex-direction: column; align-items: center; gap: 12px; }
    .step-item { width: 100%; padding: 28px 20px; }
    .step-arrow { transform: rotate(90deg); padding: 4px 0; }

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

    .faq-question { padding: 16px; font-size: 14px; }
    .faq-answer-inner { padding: 0 16px 16px; }

    .cta-section { padding: 48px 0; }
    .cta-card { padding: 40px 20px; }
    .cta-card h2 { font-size: 22px; }

    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
    .site-footer { padding-top: 48px; }
  }

  @media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
    .benefits-grid { grid-template-columns: 1fr; }
    .plans-grid { grid-template-columns: 1fr; }
    .hero-badge { font-size: 12px; padding: 5px 10px; }
  }