/* roulang page: index */
:root {
  --bg-deep: #050A18;
  --bg-body: #0A1328;
  --bg-panel: rgba(255, 255, 255, 0.04);
  --bg-panel-strong: rgba(20, 40, 80, 0.35);
  --glass-border: rgba(148, 180, 255, 0.16);
  --glass-highlight: rgba(255, 255, 255, 0.12);
  --primary: #2E9BFF;
  --primary-strong: #1677E0;
  --accent: #00DFA6;
  --accent-warm: #FFA24C;
  --danger: #FF5A6E;
  --text-hi: #F2F6FF;
  --text-mid: rgba(210, 226, 255, 0.72);
  --text-low: rgba(150, 175, 215, 0.5);
  --glow-primary: 0 0 24px rgba(46, 155, 255, 0.45);
  --glow-accent: 0 0 20px rgba(0, 223, 166, 0.35);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;
  --shadow-base: 0 8px 32px rgba(0, 0, 0, 0.35);
  --shadow-hover: 0 12px 48px rgba(0, 30, 80, 0.5);
  --font-family: "Inter", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-family);
  background: var(--bg-body);
  color: var(--text-mid);
  line-height: 1.7;
  font-size: 15px;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .2s ease; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input { font-family: inherit; }
ul, ol { list-style: none; }

/* Layout */
.layout { display: flex; min-height: 100vh; }
.main { flex: 1; margin-left: 220px; min-width: 0; display: flex; flex-direction: column; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; width: 100%; }
.section { padding: 90px 40px; }
.section + .section { border-top: 1px solid rgba(148, 180, 255, 0.05); }

/* Icons */
.icon-xs { width: 12px; height: 12px; }
.icon-sm { width: 14px; height: 14px; }
.icon-md { width: 18px; height: 18px; }
.icon-lg { width: 24px; height: 24px; }
.icon-white { color: #fff; }

/* Sidebar */
.sidebar {
  width: 220px;
  position: fixed;
  inset: 0 auto 0 0;
  background: rgba(5, 10, 24, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-right: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  z-index: 100;
}
.brand {
  height: 72px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 20px;
  border-bottom: 1px solid rgba(148, 180, 255, 0.08);
  flex-shrink: 0;
}
.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-hi);
  flex-shrink: 0;
}
.brand-icon svg { width: 20px; height: 20px; }
.brand-text {
  color: var(--text-hi);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.side-nav {
  flex: 1;
  padding: 24px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 48px;
  padding: 0 16px;
  border-radius: 12px;
  color: var(--text-mid);
  font-size: 14px;
  font-weight: 500;
  transition: all .2s ease;
  position: relative;
}
.nav-item svg { width: 18px; height: 18px; flex-shrink: 0; }
.nav-item span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.nav-item:hover { background: rgba(255, 255, 255, 0.06); color: var(--text-hi); }
.nav-item.active { color: var(--primary); font-weight: 600; background: rgba(255, 255, 255, 0.06); }
.nav-item.active::before {
  content: '';
  position: absolute;
  left: -12px;
  top: 8px;
  bottom: 8px;
  width: 3px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--primary), var(--accent));
}
.side-footer { padding: 16px 16px 24px; border-top: 1px solid rgba(148, 180, 255, 0.06); }
.secure-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(0, 223, 166, 0.08);
  border: 1px solid rgba(0, 223, 166, 0.15);
  font-size: 12px;
  color: var(--accent);
}
.secure-badge svg { width: 15px; height: 15px; flex-shrink: 0; }
.secure-badge span:not(.pulse-dot) { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  position: relative;
  display: inline-block;
  margin-left: auto;
  flex-shrink: 0;
}
.pulse-dot::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  background: var(--accent);
  opacity: .4;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { transform: scale(.5); opacity: .6; }
  70% { transform: scale(1.5); opacity: 0; }
  100% { transform: scale(.5); opacity: 0; }
}

/* Mobile header */
.mobile-header { display: none; }
.mobile-drawer-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(5, 10, 24, 0.7);
  backdrop-filter: blur(4px);
  z-index: 300;
}
.mobile-drawer-overlay.open { display: block; }
.mobile-drawer {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 310;
  background: var(--bg-deep);
  flex-direction: column;
  padding: 20px;
}
.mobile-drawer.open { display: flex; }
.drawer-close {
  align-self: flex-end;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-mid);
}
.drawer-close svg { width: 18px; height: 18px; }
.drawer-nav { display: flex; flex-direction: column; gap: 8px; margin-top: 40px; }
.drawer-nav a {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border-radius: 14px;
  font-size: 17px;
  color: var(--text-mid);
  font-weight: 600;
  transition: background .2s ease;
}
.drawer-nav a svg { width: 20px; height: 20px; }
.drawer-nav a:hover, .drawer-nav a.active { background: rgba(46, 155, 255, 0.1); color: var(--primary); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .3px;
  transition: all .2s ease;
  border: none;
  cursor: pointer;
  text-align: center;
  white-space: nowrap;
}
.btn:focus { outline: 2px solid #7EC8FF; outline-offset: 2px; }
.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-strong) 100%);
  color: #fff;
  box-shadow: 0 4px 16px rgba(46, 155, 255, 0.25);
}
.btn-primary:hover { box-shadow: var(--glow-primary); transform: translateY(-2px); }
.btn-primary:active { transform: translateY(0); box-shadow: none; }
.btn-ghost {
  background: transparent;
  border: 1px solid var(--glass-border);
  color: var(--text-hi);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.06); }
.btn-ghost:active { transform: translateY(0); }
.btn-text {
  color: var(--primary);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 10px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  border-radius: 6px;
  transition: background .2s ease;
}
.btn-text:hover { background: rgba(46, 155, 255, 0.1); }
.btn-text svg { width: 14px; height: 14px; }

/* Hero */
.hero {
  position: relative;
  padding: 80px 40px;
  overflow: hidden;
  display: flex;
  align-items: center;
  background: var(--bg-deep);
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
  opacity: .2;
}
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 10, 24, .2) 0%, rgba(10, 19, 40, .92) 100%);
}
.hero-glow {
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  filter: blur(90px);
  z-index: 1;
  pointer-events: none;
}
.hero-glow.blue { background: rgba(46, 155, 255, 0.15); top: -100px; left: 10%; }
.hero-glow.green { background: rgba(0, 223, 166, 0.1); bottom: -80px; right: 15%; }
.hero-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 64px;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}
.hero-content { flex: 1.2; max-width: 560px; }
.hero h1 {
  font-size: 44px;
  font-weight: 700;
  color: var(--text-hi);
  letter-spacing: -.5px;
  line-height: 1.3;
  margin-bottom: 20px;
}
.hero-sub {
  font-size: 16px;
  color: var(--text-mid);
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 460px;
}
.hero-actions { display: flex; gap: 16px; margin-bottom: 36px; }
.hero-trust {
  display: flex;
  gap: 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(148, 180, 255, 0.12);
  flex-wrap: wrap;
}
.hero-trust li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-mid);
}
.hero-trust li svg { width: 15px; height: 15px; color: var(--accent); }
.hero-visual { flex: .8; display: flex; justify-content: center; }

/* Phone frame */
.phone-frame {
  width: 300px;
  aspect-ratio: 9 / 16;
  border-radius: 32px;
  background: var(--bg-panel-strong);
  border: 1px solid var(--glass-border);
  padding: 10px;
  box-shadow: var(--shadow-base);
  position: relative;
}
.phone-screen {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 24px;
  overflow: hidden;
  background: var(--bg-deep);
}
.phone-screen img { width: 100%; height: 100%; object-fit: cover; }
.phone-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 10, 24, 0) 40%, rgba(5, 10, 24, 0.88) 100%);
  z-index: 1;
}
.phone-topbar {
  position: absolute;
  top: 0; left: 0; right: 0;
  display: flex;
  justify-content: flex-end;
  padding: 12px;
  z-index: 3;
}
.phone-close {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.85);
  font-size: 10px;
}
.phone-play {
  position: absolute;
  right: 14px;
  bottom: 92px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  box-shadow: var(--glow-accent);
  transition: transform .2s ease, box-shadow .2s ease;
  z-index: 3;
}
.phone-play:hover { transform: scale(1.08); }
.phone-play svg { width: 16px; height: 16px; }
.phone-caption {
  position: absolute;
  bottom: 28px;
  left: 0; right: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  z-index: 3;
}
.phone-caption-text {
  font-size: 13px;
  color: var(--text-hi);
  background: rgba(0, 0, 0, 0.3);
  padding: 4px 12px;
  border-radius: 999px;
  backdrop-filter: blur(4px);
}
.phone-enter {
  font-size: 13px;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  padding: 8px 20px;
  border-radius: 999px;
  box-shadow: var(--glow-primary);
  transition: box-shadow .2s ease;
}
.phone-enter:hover { box-shadow: 0 0 28px rgba(46, 155, 255, 0.6); }
.phone-badge {
  position: absolute;
  z-index: 3;
  font-size: 12px;
  color: var(--text-hi);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.15);
}
.phone-badge-left { top: 54px; left: 12px; }
.phone-badge-right { top: 88px; right: 12px; }

/* Trust bar */
.trust-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  min-height: 56px;
  border-top: 1px solid rgba(148, 180, 255, 0.08);
  border-bottom: 1px solid rgba(148, 180, 255, 0.08);
  background: rgba(5, 10, 24, 0.4);
  padding: 16px 24px;
  color: var(--text-mid);
  font-size: 13px;
  flex-wrap: wrap;
}
.trust-item { display: flex; align-items: center; gap: 8px; }
.trust-item svg { width: 15px; height: 15px; color: var(--accent); }

/* Section headings */
.section-head { margin-bottom: 40px; }
.section-head.center { text-align: center; }
.section-tag {
  display: inline-block;
  background: rgba(46, 155, 255, 0.15);
  color: var(--primary);
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
  font-weight: 500;
}
.section-head h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-hi);
  letter-spacing: -.3px;
  line-height: 1.3;
}
.section-head p { margin-top: 8px; color: var(--text-low); font-size: 14px; }

/* Bento grid */
.bento-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 20px;
}
.bento-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--glass-border);
  background: var(--bg-panel);
  min-height: 240px;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
  display: flex;
  flex-direction: column;
}
.bento-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(148, 180, 255, 0.3); }
.bento-main { grid-row: span 2; }
.bento-card .card-cover { position: relative; height: 180px; overflow: hidden; flex-shrink: 0; }
.bento-card.bento-main .card-cover { height: 100%; min-height: 320px; }
.card-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.bento-card:hover .card-cover img { transform: scale(1.05); }
.card-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 10, 24, 0) 40%, rgba(5, 10, 24, 0.88) 100%);
  z-index: 1;
}
.category-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 500;
  border-radius: 999px;
  background: rgba(46, 155, 255, 0.8);
  color: #fff;
  backdrop-filter: blur(4px);
}
.category-tag.accent { background: rgba(0, 223, 166, 0.8); color: #041218; }
.duration-badge {
  position: absolute;
  right: 12px;
  bottom: 40px;
  z-index: 2;
  padding: 3px 8px;
  font-size: 11px;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  color: rgba(255, 255, 255, 0.9);
  font-feature-settings: "tnum";
}
.card-play {
  position: absolute;
  right: 12px;
  bottom: 12px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  z-index: 2;
  transition: box-shadow .2s ease, transform .2s ease;
}
.card-play svg { width: 14px; height: 14px; }
.bento-card:hover .card-play { box-shadow: var(--glow-accent); transform: scale(1.08); }
.bento-body { padding: 16px 20px 20px; position: relative; z-index: 1; }
.bento-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-hi);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.45;
}
.bento-body p {
  font-size: 13px;
  color: var(--text-low);
  line-height: 1.7;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.bento-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: var(--text-low);
}
.bento-meta span { display: flex; align-items: center; gap: 5px; }
.bento-meta svg { width: 13px; height: 13px; }

/* Wishlist */
.wishlist-list { display: flex; flex-direction: column; gap: 12px; max-width: 900px; }
.wishlist-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 12px 16px;
  border-radius: 14px;
  transition: background .25s ease;
  position: relative;
  border: 1px solid transparent;
}
.wishlist-item:hover { background: rgba(255, 255, 255, 0.03); border-color: rgba(148, 180, 255, 0.06); }
.wishlist-item:hover::before {
  content: '';
  position: absolute;
  left: -1px;
  top: 10%;
  bottom: 10%;
  width: 3px;
  border-radius: 3px;
  background: var(--accent);
}
.wishlist-num {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-low);
  font-feature-settings: "tnum";
  min-width: 36px;
  text-align: center;
  transition: color .2s ease;
}
.wishlist-item:hover .wishlist-num { color: var(--accent); }
.wishlist-thumb {
  width: 72px;
  height: 72px;
  border-radius: 12px;
  overflow: hidden;
  flex-shrink: 0;
}
.wishlist-thumb img { width: 100%; height: 100%; object-fit: cover; }
.wishlist-info { flex: 1; min-width: 0; }
.wishlist-info h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-hi);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.wishlist-info p {
  font-size: 13px;
  color: var(--text-low);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.wishlist-action { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.fav-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-low);
  transition: all .2s ease;
  border: 1px solid transparent;
}
.fav-btn svg { width: 17px; height: 17px; }
.fav-btn:hover { background: rgba(255, 162, 76, 0.1); color: var(--accent-warm); border-color: rgba(255, 162, 76, 0.2); }
.fav-btn.active { color: var(--accent-warm); }
.wishlist-go {
  padding: 8px 16px;
  font-size: 13px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-mid);
  border: 1px solid var(--glass-border);
  opacity: 0;
  transition: all .2s ease;
  white-space: nowrap;
}
.wishlist-item:hover .wishlist-go { opacity: 1; }

/* Testimonials */
.testimonial-scroll {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  padding: 4px 4px 16px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}
.testimonial-scroll::-webkit-scrollbar { height: 4px; }
.testimonial-scroll::-webkit-scrollbar-track { background: rgba(148, 180, 255, 0.05); border-radius: 4px; }
.testimonial-scroll::-webkit-scrollbar-thumb { background: rgba(148, 180, 255, 0.2); border-radius: 4px; }
.testimonial-card {
  flex: 0 0 340px;
  scroll-snap-align: start;
  background: var(--bg-panel);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 24px;
  position: relative;
  overflow: hidden;
  transition: border-color .25s ease;
}
.testimonial-card:hover { border-color: rgba(148, 180, 255, 0.28); }
.testimonial-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
}
.t-head { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.t-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  flex-shrink: 0;
}
.t-name { font-size: 15px; font-weight: 600; color: var(--text-hi); }
.t-rating { margin-left: auto; font-size: 13px; color: var(--accent); font-weight: 600; }
.t-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-mid);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
}
.t-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-low);
  padding-top: 12px;
  border-top: 1px solid rgba(148, 180, 255, 0.08);
}
.t-source {
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(0, 223, 166, 0.1);
  color: var(--accent);
  font-size: 11px;
  font-weight: 500;
}

/* Latest list (CMS) */
.latest-list { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.latest-card {
  display: flex;
  gap: 16px;
  background: var(--bg-panel);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 16px;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
  cursor: pointer;
  position: relative;
}
.latest-card:hover {
  transform: translateY(-2px);
  border-color: rgba(148, 180, 255, 0.3);
  box-shadow: var(--shadow-hover);
}
.latest-thumb {
  width: 120px;
  height: 80px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
}
.latest-thumb img { width: 100%; height: 100%; object-fit: cover; }
.latest-body { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.latest-cat {
  display: inline-block;
  font-size: 12px;
  color: var(--primary);
  background: rgba(46, 155, 255, 0.12);
  padding: 2px 10px;
  border-radius: 999px;
  margin-bottom: 8px;
  align-self: flex-start;
  max-width: 120px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.latest-body h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-hi);
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.5;
}
.latest-body h3 a { color: inherit; }
.latest-body h3 a:hover { color: var(--primary); }
.latest-body p {
  font-size: 13px;
  color: var(--text-low);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 10px;
  flex: 1;
  line-height: 1.6;
}
.latest-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-low);
}
.latest-time { display: flex; align-items: center; gap: 5px; }
.latest-time svg { width: 12px; height: 12px; }
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 40px;
  background: var(--bg-panel);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-low);
  font-size: 14px;
}
.empty-state svg { width: 32px; height: 32px; display: block; margin: 0 auto 12px; opacity: .4; }

/* FAQ */
.faq-list { max-width: 840px; margin: 0 auto; }
.faq-item {
  background: var(--bg-panel);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color .25s ease;
}
.faq-item:hover { border-color: rgba(148, 180, 255, 0.25); }
.faq-item.open { border-color: rgba(46, 155, 255, 0.3); }
.faq-q {
  width: 100%;
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-hi);
  background: transparent;
  cursor: pointer;
  text-align: left;
  transition: background .2s ease;
}
.faq-q:hover { background: rgba(255, 255, 255, 0.02); }
.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(46, 155, 255, 0.12);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform .3s ease;
}
.faq-icon svg { width: 12px; height: 12px; }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-a-inner {
  padding: 0 20px 16px;
  font-size: 14px;
  color: var(--text-mid);
  line-height: 1.75;
  background: rgba(46, 155, 255, 0.04);
  border-radius: 0 0 14px 14px;
}

/* CTA */
.cta-section { position: relative; padding: 80px 40px; }
.cta-panel {
  max-width: 1100px;
  margin: 0 auto;
  background: var(--bg-panel-strong);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 60px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  position: relative;
  overflow: hidden;
}
.cta-panel::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(46, 155, 255, 0.4), transparent);
}
.cta-panel::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
  opacity: .06;
  z-index: 0;
}
.cta-text { position: relative; z-index: 1; }
.cta-text h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-hi);
  margin-bottom: 12px;
  letter-spacing: -.3px;
}
.cta-text p { font-size: 14px; color: var(--text-mid); }
.cta-btn-wrap { position: relative; z-index: 1; flex-shrink: 0; }

/* Footer */
.footer {
  background: var(--bg-deep);
  border-top: 1px solid rgba(148, 180, 255, 0.08);
  padding: 64px 40px 0;
  margin-top: auto;
}
.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr .8fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.footer-brand .brand-icon { width: 32px; height: 32px; }
.footer-brand .brand-icon svg { width: 17px; height: 17px; }
.footer-brand-text {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-hi);
}
.footer-desc {
  font-size: 13px;
  color: var(--text-low);
  line-height: 1.7;
  margin-bottom: 16px;
  max-width: 280px;
}
.footer-security {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--accent);
}
.footer-security svg { width: 14px; height: 14px; }
.footer-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-hi);
  margin-bottom: 16px;
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 13px; color: var(--text-mid); width: fit-content; }
.footer-links a:hover { color: var(--primary); }
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-mid);
  margin-bottom: 10px;
}
.footer-contact svg { width: 14px; height: 14px; color: var(--text-low); flex-shrink: 0; }
.footer-bottom {
  border-top: 1px solid rgba(148, 180, 255, 0.08);
  padding: 20px 24px;
  text-align: center;
  font-size: 13px;
  color: var(--text-low);
}

/* Responsive */
@media (max-width: 1279px) {
  .container { padding: 0 20px; }
  .section { padding: 70px 20px; }
  .sidebar { width: 64px; }
  .sidebar .brand { justify-content: center; padding: 0; }
  .sidebar .brand-text,
  .sidebar .nav-item span,
  .side-footer .secure-badge span:not(.pulse-dot) { display: none; }
  .sidebar .nav-item { justify-content: center; padding: 0; }
  .side-footer { padding: 16px 8px 24px; }
  .secure-badge { justify-content: center; padding: 10px 0; }
  .main { margin-left: 64px; }
  .bento-grid { grid-template-columns: 1fr 1fr; }
  .bento-main { grid-column: span 2; grid-row: auto; }
  .bento-main .card-cover { min-height: 280px; }
  .trust-bar { gap: 28px; }
}
@media (max-width: 767px) {
  .sidebar { display: none; }
  .main { margin-left: 0; }
  .mobile-header {
    display: flex;
    height: 56px;
    position: sticky;
    top: 0;
    z-index: 200;
    background: rgba(5, 10, 24, 0.94);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--glass-border);
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    flex-shrink: 0;
  }
  .mobile-header .brand { height: auto; padding: 0; border-bottom: none; }
  .menu-toggle {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-mid);
    background: rgba(255, 255, 255, 0.05);
  }
  .menu-toggle svg { width: 18px; height: 18px; }
  .hero { padding: 56px 20px; }
  .hero-inner { flex-direction: column; gap: 40px; }
  .hero h1 { font-size: 28px; }
  .hero-trust { gap: 12px 20px; }
  .hero-actions { flex-direction: column; align-items: stretch; width: 100%; }
  .btn { width: 100%; }
  .hero-visual { width: 100%; }
  .phone-frame { width: 260px; }
  .section { padding: 60px 16px; }
  .section-head h2 { font-size: 22px; }
  .bento-grid { grid-template-columns: 1fr; }
  .bento-main { grid-column: 1; grid-row: auto; }
  .bento-main .card-cover { min-height: 180px; height: 180px; }
  .bento-card { min-height: auto; }
  .latest-list { grid-template-columns: 1fr; }
  .latest-thumb { width: 96px; height: 72px; }
  .wishlist-list { gap: 8px; }
  .wishlist-item { gap: 12px; padding: 10px; }
  .wishlist-thumb { width: 56px; height: 56px; }
  .wishlist-info h3 { font-size: 15px; }
  .wishlist-info p { font-size: 12px; }
  .wishlist-go { display: none; }
  .testimonial-card { flex-basis: 290px; }
  .cta-section { padding: 60px 16px; }
  .cta-panel { flex-direction: column; padding: 32px 24px; text-align: center; gap: 24px; }
  .footer { padding: 48px 16px 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .trust-bar { gap: 14px; justify-content: flex-start; }
  .trust-item { font-size: 12px; }
}

/* roulang page: category1 */
:root {
  --bg-deep: #050A18;
  --bg-body: #0A1328;
  --bg-panel: rgba(255, 255, 255, 0.04);
  --bg-panel-strong: rgba(20, 40, 80, 0.35);
  --glass-border: rgba(148, 180, 255, 0.16);
  --glass-highlight: rgba(255, 255, 255, 0.12);
  --primary: #2E9BFF;
  --primary-strong: #1677E0;
  --accent: #00DFA6;
  --accent-warm: #FFA24C;
  --danger: #FF5A6E;
  --text-hi: #F2F6FF;
  --text-mid: rgba(210, 226, 255, 0.72);
  --text-low: rgba(150, 175, 215, 0.5);
  --glow-primary: 0 0 24px rgba(46, 155, 255, 0.45);
  --glow-accent: 0 0 20px rgba(0, 223, 166, 0.35);
  --radius-card: 16px;
  --radius-btn: 10px;
  --radius-lg: 24px;
  --shadow-base: 0 8px 32px rgba(0, 0, 0, 0.35);
  --shadow-hover: 0 12px 48px rgba(0, 30, 80, 0.5);
  --font-family: "Inter", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-family);
  background-color: var(--bg-deep);
  background-image: radial-gradient(ellipse at 20% 10%, rgba(46,155,255,0.12) 0%, transparent 50%), radial-gradient(ellipse at 90% 90%, rgba(0,223,166,0.08) 0%, transparent 50%);
  background-attachment: fixed;
  color: var(--text-mid);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul, ol { list-style: none; }

/* 侧边导航 */
.side-nav {
  position: fixed;
  top: 0; left: 0;
  width: 220px;
  height: 100vh;
  background: rgba(5, 10, 24, 0.85);
  border-right: 1px solid var(--glass-border);
  backdrop-filter: blur(18px);
  display: flex;
  flex-direction: column;
  z-index: 100;
}
.brand-area {
  height: 72px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 18px;
  border-bottom: 1px solid rgba(148, 180, 255, 0.08);
  flex-shrink: 0;
}
.brand-icon {
  width: 38px; height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(46,155,255,0.2), rgba(0,223,166,0.15));
  border: 1px solid var(--glass-border);
  display: flex; align-items: center; justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
}
.brand-icon svg { width: 22px; height: 22px; }
.brand-text {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-hi);
  letter-spacing: 0.2px;
  line-height: 1.4;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.nav-list {
  flex: 1;
  padding: 18px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
}
.nav-item {
  position: relative;
  height: 48px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 16px;
  border-radius: 12px;
  color: var(--text-mid);
  font-size: 15px;
  transition: background 0.25s ease, color 0.25s ease;
}
.nav-item svg {
  width: 20px; height: 20px;
  flex-shrink: 0;
  opacity: 0.85;
}
.nav-item:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-hi);
}
.nav-item.active {
  color: var(--primary);
  font-weight: 600;
  background: rgba(255, 255, 255, 0.06);
}
.nav-item.active::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22%;
  bottom: 22%;
  width: 3px;
  border-radius: 0 99px 99px 0;
  background: linear-gradient(180deg, var(--primary), var(--accent));
}
.nav-item.active svg { color: var(--primary); opacity: 1; }
.nav-bottom {
  padding: 14px 16px;
  border-top: 1px solid rgba(148, 180, 255, 0.08);
  flex-shrink: 0;
}
.security-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-low);
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(0, 223, 166, 0.06);
  border: 1px solid rgba(0, 223, 166, 0.18);
}
.security-badge svg { width: 14px; height: 14px; color: var(--accent); }
.security-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px rgba(0, 223, 166, 0.7);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* 移动端顶部栏 */
.mobile-topbar {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 56px;
  background: rgba(5, 10, 24, 0.92);
  border-bottom: 1px solid var(--glass-border);
  backdrop-filter: blur(16px);
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  z-index: 200;
}
.mobile-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-hi);
}
.mobile-brand .brand-icon { width: 34px; height: 34px; border-radius: 10px; }
.menu-btn {
  width: 40px; height: 40px;
  border-radius: 10px;
  border: 1px solid var(--glass-border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-hi);
  background: rgba(255, 255, 255, 0.04);
}
.menu-btn svg { width: 22px; height: 22px; }
.menu-btn:active { background: rgba(255, 255, 255, 0.1); }
.mobile-drawer {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(5, 10, 24, 0.97);
  z-index: 300;
  padding: 20px;
  display: none;
  flex-direction: column;
  backdrop-filter: blur(20px);
}
.mobile-drawer.open { display: flex; }
.drawer-close {
  align-self: flex-end;
  width: 44px; height: 44px;
  border-radius: 12px;
  border: 1px solid var(--glass-border);
  display: flex; align-items: center; justify-content: center;
  font-size: 24px;
  color: var(--text-hi);
  background: rgba(255, 255, 255, 0.04);
  margin-bottom: 20px;
}
.drawer-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}
.drawer-nav a {
  display: flex;
  align-items: center;
  gap: 14px;
  height: 56px;
  padding: 0 20px;
  border-radius: 14px;
  font-size: 18px;
  color: var(--text-mid);
  border: 1px solid transparent;
}
.drawer-nav a:hover { background: rgba(255, 255, 255, 0.05); color: var(--text-hi); }
.drawer-nav a.active {
  color: var(--primary);
  font-weight: 600;
  background: rgba(46, 155, 255, 0.08);
  border-color: rgba(46, 155, 255, 0.2);
}
.drawer-nav a svg { width: 22px; height: 22px; }
.drawer-security {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-low);
  padding: 16px 0;
  border-top: 1px solid rgba(148, 180, 255, 0.1);
}

/* 主内容 */
.main-content {
  margin-left: 220px;
  min-height: 100vh;
  background: var(--bg-body);
}
.page-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 40px 60px;
}

/* 分类页 Hero */
.page-hero {
  position: relative;
  border-radius: var(--radius-lg);
  padding: 60px 48px;
  background: var(--bg-panel-strong);
  border: 1px solid var(--glass-border);
  overflow: hidden;
  margin-bottom: 48px;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.15;
  z-index: 0;
}
.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 10, 24, 0.1) 0%, rgba(5, 10, 24, 0.6) 100%);
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--accent);
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(0, 223, 166, 0.08);
  border: 1px solid rgba(0, 223, 166, 0.2);
  margin-bottom: 20px;
}
.hero-tag svg { width: 14px; height: 14px; }
.page-hero h1 {
  font-size: 42px;
  font-weight: 700;
  color: var(--text-hi);
  line-height: 1.3;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
}
.page-hero .hero-desc {
  font-size: 16px;
  color: var(--text-mid);
  max-width: 640px;
  line-height: 1.8;
}
.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 32px;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-btn);
  background: linear-gradient(135deg, #2E9BFF 0%, #1677E0 100%);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  border: none;
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}
.btn-primary:hover {
  box-shadow: var(--glow-primary);
  transform: translateY(-2px);
}
.btn-primary:active { transform: translateY(0); }
.btn-primary:focus-visible {
  outline: 2px solid #7EC8FF;
  outline-offset: 2px;
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-btn);
  background: transparent;
  border: 1px solid var(--glass-border);
  color: var(--text-hi);
  font-size: 15px;
  transition: background 0.25s ease, border-color 0.25s ease;
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(148, 180, 255, 0.3);
}
.hero-trust {
  display: flex;
  gap: 24px;
  margin-top: 32px;
  flex-wrap: wrap;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-low);
}
.trust-item svg { width: 16px; height: 16px; color: var(--accent); }

/* 内容卡片列表 */
.section-block {
  margin-bottom: 56px;
}
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 28px;
  gap: 20px;
  flex-wrap: wrap;
}
.section-header h2 {
  font-size: 27px;
  font-weight: 700;
  color: var(--text-hi);
  letter-spacing: -0.3px;
  line-height: 1.4;
}
.section-header .section-sub {
  font-size: 14px;
  color: var(--text-low);
  max-width: 420px;
}
.card-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 20px;
}
.card-item {
  position: relative;
  background: var(--bg-panel);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-base);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.card-item::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  right: 0; height: 1px;
  background: linear-gradient(135deg, rgba(255,255,255,0.12), transparent 70%);
  z-index: 2;
}
.card-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(148, 180, 255, 0.3);
}
.card-cover {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}
.card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.card-item:hover .card-cover img { transform: scale(1.04); }
.card-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5,10,24,0) 40%, rgba(5,10,24,0.65) 100%);
}
.card-tag {
  position: absolute;
  top: 14px; left: 14px;
  z-index: 3;
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(46, 155, 255, 0.85);
  color: #fff;
  backdrop-filter: blur(8px);
}
.card-tag.green {
  background: rgba(0, 223, 166, 0.85);
  color: #071014;
}
.card-body {
  padding: 20px;
}
.card-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-hi);
  margin-bottom: 8px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-body p {
  font-size: 14px;
  color: var(--text-mid);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
  font-size: 13px;
  color: var(--text-low);
}
.card-link-more {
  margin-top: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--primary);
  font-weight: 500;
  min-height: 36px;
  transition: gap 0.25s ease;
}
.card-link-more:hover { gap: 10px; }
.card-link-more svg { width: 16px; height: 16px; }

/* 内容概览 */
.overview-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 24px;
}
.overview-card {
  background: var(--bg-panel);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  padding: 28px;
  backdrop-filter: blur(14px);
  position: relative;
  overflow: hidden;
}
.overview-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 1px;
  background: linear-gradient(135deg, rgba(255,255,255,0.12), transparent 70%);
}
.overview-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-hi);
  margin-bottom: 20px;
}
.step-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.step-item {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(148, 180, 255, 0.08);
}
.step-item:last-child { border-bottom: none; }
.step-num {
  width: 32px; height: 32px;
  border-radius: 10px;
  background: rgba(46, 155, 255, 0.12);
  border: 1px solid rgba(46, 155, 255, 0.25);
  color: var(--primary);
  font-weight: 700;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-feature-settings: "tnum";
}
.step-content { flex: 1; }
.step-content h4 {
  font-size: 15px;
  color: var(--text-hi);
  font-weight: 600;
  margin-bottom: 4px;
}
.step-content p {
  font-size: 13px;
  color: var(--text-low);
  line-height: 1.6;
}
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.stat-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(148, 180, 255, 0.1);
  border-radius: 14px;
  padding: 20px;
  text-align: center;
}
.stat-num {
  font-size: 30px;
  font-weight: 700;
  color: var(--text-hi);
  font-feature-settings: "tnum";
  letter-spacing: -0.5px;
}
.stat-num.accent { color: var(--accent); }
.stat-label {
  font-size: 13px;
  color: var(--text-low);
  margin-top: 4px;
}

/* FAQ */
.faq-section {
  margin-bottom: 56px;
}
.faq-list {
  max-width: 760px;
}
.faq-item {
  background: var(--bg-panel);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.3s ease;
}
.faq-item:hover { border-color: rgba(148, 180, 255, 0.3); }
.faq-item.open { border-color: rgba(46, 155, 255, 0.3); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  min-height: 56px;
  text-align: left;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-hi);
  background: transparent;
  transition: background 0.25s ease;
}
.faq-question:hover { background: rgba(255, 255, 255, 0.02); }
.faq-icon {
  width: 22px; height: 22px;
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--text-mid);
  flex-shrink: 0;
  transition: transform 0.3s ease, background 0.3s ease, color 0.3s ease;
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: rgba(46, 155, 255, 0.1);
  border-color: rgba(46, 155, 255, 0.4);
  color: var(--primary);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 20px;
  color: var(--text-mid);
  font-size: 14px;
  line-height: 1.8;
}
.faq-item.open .faq-answer {
  max-height: 200px;
  padding: 0 20px 20px;
}

/* CTA */
.cta-section {
  background: var(--bg-panel-strong);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 48px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}
.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 10% 20%, rgba(46,155,255,0.1) 0%, transparent 40%), radial-gradient(circle at 90% 80%, rgba(0,223,166,0.08) 0%, transparent 40%);
  pointer-events: none;
}
.cta-content {
  position: relative;
  z-index: 1;
  flex: 1;
  min-width: 260px;
}
.cta-content h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-hi);
  margin-bottom: 12px;
  line-height: 1.4;
}
.cta-content p {
  font-size: 15px;
  color: var(--text-mid);
  max-width: 460px;
}
.cta-section .btn-primary {
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}

/* 页脚 */
.footer {
  background: var(--bg-deep);
  border-top: 1px solid rgba(148, 180, 255, 0.08);
  margin-left: 220px;
}
.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 40px 24px;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.footer-brand .brand-icon { width: 36px; height: 36px; border-radius: 10px; }
.footer-brand-text {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-hi);
}
.footer-desc {
  font-size: 14px;
  color: var(--text-mid);
  margin-bottom: 16px;
  max-width: 320px;
  line-height: 1.7;
}
.footer-security {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--accent);
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(0, 223, 166, 0.06);
  border: 1px solid rgba(0, 223, 166, 0.16);
}
.footer-security svg { width: 15px; height: 15px; }
.footer-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-hi);
  margin-bottom: 16px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  font-size: 14px;
  color: var(--text-mid);
  transition: color 0.25s ease;
  display: inline-flex;
  align-items: center;
  min-height: 30px;
}
.footer-links a:hover { color: var(--primary); }
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-mid);
}
.footer-contact svg {
  width: 16px; height: 16px;
  color: var(--primary);
  flex-shrink: 0;
}
.footer-bottom {
  border-top: 1px solid rgba(148, 180, 255, 0.08);
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 40px;
}
.footer-bottom p {
  font-size: 13px;
  color: var(--text-low);
  text-align: center;
}

/* 响应式 */
@media (max-width: 1279px) {
  .side-nav { width: 72px; }
  .brand-text { display: none; }
  .brand-area { justify-content: center; padding: 0; }
  .nav-item { justify-content: center; padding: 0; }
  .nav-item span { display: none; }
  .security-badge span { display: none; }
  .security-badge { padding: 8px; }
  .main-content { margin-left: 72px; }
  .footer { margin-left: 72px; }
  .card-grid { grid-template-columns: 1fr 1fr; }
  .overview-grid { grid-template-columns: 1fr; }
}
@media (max-width: 767px) {
  .side-nav { display: none; }
  .mobile-topbar { display: flex; }
  .main-content { margin-left: 0; padding-top: 56px; }
  .footer { margin-left: 0; }
  .page-container { padding: 20px 16px 40px; }
  .page-hero { padding: 36px 24px; }
  .page-hero h1 { font-size: 28px; }
  .hero-actions { flex-direction: column; }
  .btn-primary, .btn-ghost { width: 100%; justify-content: center; }
  .hero-trust { gap: 12px; flex-direction: column; }
  .card-grid { grid-template-columns: 1fr; }
  .overview-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .cta-section { padding: 28px 20px; flex-direction: column; text-align: center; }
  .cta-content p { margin: 0 auto; }
  .cta-section .btn-primary { width: 100%; justify-content: center; }
  .footer-grid { grid-template-columns: 1fr; padding: 32px 20px 16px; gap: 28px; }
  .footer-bottom { padding: 16px 20px; }
  .section-header { flex-direction: column; align-items: flex-start; }
  .section-header h2 { font-size: 22px; }
}

/* roulang page: article */
:root {
  --bg-deep: #050A18;
  --bg-body: #0A1328;
  --bg-panel: rgba(255, 255, 255, 0.04);
  --bg-panel-strong: rgba(20, 40, 80, 0.35);
  --glass-border: rgba(148, 180, 255, 0.16);
  --glass-highlight: rgba(255, 255, 255, 0.12);
  --primary: #2E9BFF;
  --primary-strong: #1677E0;
  --accent: #00DFA6;
  --accent-warm: #FFA24C;
  --danger: #FF5A6E;
  --text-hi: #F2F6FF;
  --text-mid: rgba(210, 226, 255, 0.72);
  --text-low: rgba(150, 175, 215, 0.5);
  --glow-primary: 0 0 24px rgba(46, 155, 255, 0.45);
  --glow-accent: 0 0 20px rgba(0, 223, 166, 0.35);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --font: "Inter", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.8;
  background: var(--bg-body);
  color: var(--text-mid);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--primary-strong); }
img { max-width: 100%; display: block; height: auto; }
button { font-family: var(--font); border: none; background: none; cursor: pointer; color: inherit; }
ul, ol { list-style: none; }

/* ===== 容器 ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 32px; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  border: none;
  transition: all 0.25s ease;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-strong) 100%);
  color: #fff;
  box-shadow: 0 4px 16px rgba(46, 155, 255, 0.25);
}
.btn-primary:hover {
  color: #fff;
  box-shadow: var(--glow-primary);
  transform: translateY(-2px);
}
.btn-primary:active { transform: translateY(0); }
.btn-primary:focus-visible { outline: 2px solid #7EC8FF; outline-offset: 3px; }
.btn-ghost {
  background: transparent;
  border: 1px solid var(--glass-border);
  color: var(--text-mid);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-hi);
  border-color: rgba(148, 180, 255, 0.3);
}
.btn-ghost:focus-visible { outline: 2px solid #7EC8FF; outline-offset: 3px; }
.btn svg { width: 18px; height: 18px; flex-shrink: 0; }

/* ===== 侧边导航 ===== */
.site-layout { display: flex; min-height: 100vh; }
.side-nav {
  width: 220px;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  background: rgba(5, 10, 24, 0.85);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-right: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: width 0.3s ease;
}
.side-nav .brand {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 72px;
  padding: 0 20px;
  border-bottom: 1px solid var(--glass-border);
  overflow: hidden;
}
.brand-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(46, 155, 255, 0.15);
  border-radius: 10px;
  color: var(--primary);
  flex-shrink: 0;
}
.brand-icon svg { width: 20px; height: 20px; }
.brand-text {
  font-weight: 700;
  font-size: 15px;
  color: var(--text-hi);
  white-space: nowrap;
}
.nav-list { flex: 1; padding: 24px 12px; display: flex; flex-direction: column; gap: 8px; }
.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 48px;
  padding: 0 16px;
  border-radius: 12px;
  color: var(--text-mid);
  font-size: 14px;
  font-weight: 500;
  transition: background 0.25s ease, color 0.25s ease;
  position: relative;
  white-space: nowrap;
}
.nav-item svg { width: 20px; height: 20px; flex-shrink: 0; }
.nav-item:hover { background: rgba(255, 255, 255, 0.06); color: var(--text-hi); }
.nav-item.active {
  background: rgba(46, 155, 255, 0.12);
  color: var(--primary);
  font-weight: 600;
}
.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 20px;
  border-radius: 0 3px 3px 0;
  background: linear-gradient(180deg, var(--primary), var(--accent));
}
.nav-security {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 16px;
  padding: 14px 16px;
  background: rgba(0, 223, 166, 0.06);
  border: 1px solid rgba(0, 223, 166, 0.15);
  border-radius: 12px;
  font-size: 12px;
  color: var(--accent);
  white-space: nowrap;
  overflow: hidden;
}
.nav-security svg { width: 16px; height: 16px; flex-shrink: 0; }

/* ===== 移动端导航 ===== */
.mobile-header {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 56px;
  background: rgba(5, 10, 24, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 300;
}
.mobile-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  color: var(--text-hi);
  font-size: 16px;
}
.mobile-brand-icon {
  width: 32px;
  height: 32px;
  background: rgba(46, 155, 255, 0.15);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}
.mobile-brand-icon svg { width: 18px; height: 18px; }
.menu-toggle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
  color: var(--text-mid);
  display: flex;
  align-items: center;
  justify-content: center;
}
.menu-toggle svg { width: 20px; height: 20px; }
.mobile-drawer {
  position: fixed;
  inset: 0;
  background: rgba(5, 10, 24, 0.98);
  z-index: 500;
  display: flex;
  flex-direction: column;
  padding: 56px 24px 32px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.mobile-drawer.open { opacity: 1; visibility: visible; }
.drawer-close {
  position: absolute;
  top: 12px;
  right: 16px;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
  color: var(--text-mid);
  display: flex;
  align-items: center;
  justify-content: center;
}
.drawer-close svg { width: 20px; height: 20px; }
.drawer-nav { display: flex; flex-direction: column; gap: 8px; padding-top: 8px; }
.drawer-item {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 56px;
  padding: 0 16px;
  border-radius: 12px;
  font-size: 16px;
  color: var(--text-mid);
  transition: background 0.2s ease;
}
.drawer-item:hover { background: rgba(255, 255, 255, 0.06); color: var(--text-hi); }
.drawer-item.active { background: rgba(46, 155, 255, 0.12); color: var(--primary); font-weight: 600; }
.drawer-item svg { width: 20px; height: 20px; }
body.drawer-open { overflow: hidden; }

/* ===== 主内容 ===== */
.main-content {
  flex: 1;
  margin-left: 220px;
  min-width: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===== 面包屑 ===== */
.breadcrumb {
  padding: 20px 0;
  font-size: 13px;
  color: var(--text-low);
  border-bottom: 1px solid rgba(148, 180, 255, 0.08);
}
.breadcrumb .container { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.breadcrumb a { color: var(--text-mid); font-size: 13px; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: var(--text-low); opacity: 0.5; }
.breadcrumb .current { color: var(--text-hi); }

/* ===== 文章 Hero ===== */
.article-hero {
  position: relative;
  padding: 60px 0 90px;
  overflow: hidden;
  border-bottom: 1px solid var(--glass-border);
}
.article-hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.18;
}
.article-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 10, 24, 0.55) 0%, rgba(10, 19, 40, 0.95) 100%);
}
.article-hero .container { position: relative; z-index: 2; }
.cate-badge {
  display: inline-flex;
  align-items: center;
  height: 26px;
  padding: 0 12px;
  background: rgba(46, 155, 255, 0.15);
  color: var(--primary);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
}
.article-title {
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.35;
  color: var(--text-hi);
  margin: 18px 0 16px;
  max-width: 860px;
  font-weight: 700;
  letter-spacing: -0.3px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 13px;
  color: var(--text-low);
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.meta-item svg { width: 16px; height: 16px; opacity: 0.7; }

/* ===== 文章主体 ===== */
.article-body {
  max-width: 880px;
  margin: -48px auto 0;
  padding: 0 24px 64px;
  position: relative;
  z-index: 10;
}
.article-panel {
  background: rgba(12, 22, 44, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 48px 52px;
  box-shadow: 0 12px 48px rgba(0, 30, 80, 0.4);
  position: relative;
}
.article-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
}
.article-content {
  font-size: 16px;
  line-height: 1.9;
  color: rgba(210, 226, 255, 0.8);
  word-break: break-word;
}
.article-content h1,
.article-content h2,
.article-content h3,
.article-content h4 {
  color: var(--text-hi);
  font-weight: 700;
  line-height: 1.5;
  margin: 36px 0 14px;
}
.article-content h1 { font-size: 28px; }
.article-content h2 { font-size: 24px; }
.article-content h3 { font-size: 19px; }
.article-content h4 { font-size: 17px; }
.article-content p { margin-bottom: 24px; }
.article-content a { color: var(--primary); text-decoration: underline; text-underline-offset: 4px; }
.article-content a:hover { color: var(--accent); text-decoration: none; }
.article-content img {
  border-radius: var(--radius);
  margin: 28px 0;
  width: 100%;
  height: auto;
  border: 1px solid var(--glass-border);
}
.article-content blockquote {
  border-left: 4px solid var(--accent);
  background: rgba(0, 223, 166, 0.06);
  padding: 18px 24px;
  border-radius: 4px 14px 14px 4px;
  font-style: italic;
  color: rgba(210, 226, 255, 0.85);
  margin: 28px 0;
}
.article-content ul,
.article-content ol { padding-left: 1.5em; margin-bottom: 24px; }
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content li { margin-bottom: 8px; }
.article-content code {
  background: rgba(148, 180, 255, 0.1);
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 0.9em;
  color: var(--accent);
}
.article-content pre {
  background: rgba(5, 10, 24, 0.7);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  padding: 20px;
  overflow-x: auto;
  margin-bottom: 24px;
}
.article-content pre code { background: none; color: var(--text-mid); padding: 0; }

/* ===== 标签组 ===== */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 28px 0 8px;
  border-top: 1px solid var(--glass-border);
  margin-top: 36px;
}
.tag {
  height: 34px;
  padding: 0 14px;
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
  color: var(--text-mid);
  font-size: 12px;
  transition: border-color 0.2s, color 0.2s;
}
.tag:hover { border-color: var(--primary); color: var(--primary); }

/* ===== 相关推荐 ===== */
.related-section { padding: 36px 0 0; }
.related-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}
.related-title { font-size: 20px; font-weight: 700; color: var(--text-hi); }
.related-more { font-size: 13px; color: var(--primary); }
.related-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.related-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 10px;
  transition: transform 0.3s ease, background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.related-card:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(46, 155, 255, 0.35);
  box-shadow: 0 12px 32px rgba(0, 30, 80, 0.4);
}
.related-card img {
  width: 120px;
  height: 80px;
  border-radius: 12px;
  object-fit: cover;
  flex-shrink: 0;
}
.related-card-body { min-width: 0; }
.related-card-body h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-hi);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-card-body span {
  font-size: 12px;
  color: var(--text-low);
  margin-top: 6px;
  display: block;
}
.related-empty {
  text-align: center;
  padding: 48px 20px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px dashed var(--glass-border);
  border-radius: var(--radius);
  color: var(--text-low);
  font-size: 14px;
}

/* ===== 文章操作 ===== */
.article-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding-top: 36px;
  margin-top: 36px;
  border-top: 1px solid var(--glass-border);
  flex-wrap: wrap;
}

/* ===== 未找到 ===== */
.not-found { text-align: center; padding: 72px 24px; }
.not-found-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 24px;
  padding: 14px;
  border-radius: 20px;
  background: rgba(46, 155, 255, 0.1);
  border: 1px solid var(--glass-border);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.not-found-icon svg { width: 34px; height: 34px; }
.not-found h2 { font-size: 24px; color: var(--text-hi); margin-bottom: 14px; font-weight: 700; }
.not-found p { color: var(--text-mid); margin-bottom: 28px; max-width: 460px; margin-left: auto; margin-right: auto; }

/* ===== 页脚 ===== */
.footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--glass-border);
  padding: 60px 0 24px;
  margin-left: 220px;
}
.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr;
  gap: 40px;
}
.footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.footer-brand-text { font-weight: 700; font-size: 16px; color: var(--text-hi); }
.footer-desc { font-size: 14px; color: var(--text-mid); line-height: 1.7; max-width: 280px; }
.footer-security {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  background: rgba(0, 223, 166, 0.08);
  border: 1px solid rgba(0, 223, 166, 0.15);
  color: var(--accent);
  font-size: 12px;
  padding: 8px 14px;
  border-radius: 999px;
}
.footer-security svg { width: 16px; height: 16px; }
.footer-title { font-size: 16px; font-weight: 600; color: var(--text-hi); margin-bottom: 16px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: var(--text-mid); font-size: 14px; transition: color 0.2s; }
.footer-links a:hover { color: var(--primary); }
.footer-contact { display: flex; flex-direction: column; gap: 12px; }
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-mid);
  font-size: 14px;
}
.footer-contact li svg { width: 16px; height: 16px; color: var(--text-low); flex-shrink: 0; }
.footer-bottom {
  border-top: 1px solid rgba(148, 180, 255, 0.08);
  margin-top: 40px;
  padding-top: 20px;
  text-align: center;
}
.footer-bottom p { font-size: 13px; color: var(--text-low); }

/* ===== 桌面导航收缩 ===== */
@media (max-width: 1279px) {
  .side-nav { width: 80px; }
  .side-nav .brand { justify-content: center; padding: 0 8px; }
  .side-nav .brand-text,
  .side-nav .nav-item span,
  .side-nav .nav-security { display: none; }
  .nav-item { justify-content: center; padding: 0 8px; }
  .nav-security { justify-content: center; padding: 0; height: 44px; margin: 12px 8px; }
  .main-content { margin-left: 80px; }
  .footer { margin-left: 80px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 767px) {
  .side-nav { display: none; }
  .mobile-header { display: flex; }
  .main-content { margin-left: 0; }
  .footer { margin-left: 0; padding: 40px 0 20px; }
  .container { padding: 0 20px; }
  .article-hero { padding: 40px 0 80px; }
  .article-title { font-size: 28px; }
  .article-body { margin-top: -36px; padding: 0 16px 48px; }
  .article-panel { padding: 28px 20px; border-radius: 20px; }
  .article-content { font-size: 15px; line-height: 1.85; }
  .article-actions { flex-direction: column-reverse; align-items: stretch; }
  .article-actions .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; padding: 0 20px; }
  .footer-bottom p { font-size: 12px; padding: 0 20px; }
}
@media (max-width: 480px) {
  .related-grid { grid-template-columns: 1fr; }
  .related-card img { width: 96px; height: 72px; }
  .breadcrumb { font-size: 12px; }
  .article-actions .btn { height: 46px; }
}