/* roulang page: index */
:root {
  --bg-primary: #0B1120;
  --bg-secondary: #111A2B;
  --bg-tertiary: #131C2E;
  --text-primary: #E8F0F8;
  --text-secondary: #9AA8B9;
  --text-muted: #64748B;
  --accent: #00B4D8;
  --accent-hover: #22D3EE;
  --accent-active: #0090B0;
  --accent-glow: #00D4AA;
  --gold: #F5B942;
  --border-light: rgba(255,255,255,.06);
  --border-normal: rgba(255,255,255,.08);
  --border-strong: rgba(255,255,255,.12);
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --radius-pill: 999px;
  --shadow-card: 0 8px 24px rgba(0,0,0,.35);
  --shadow-glow: 0 0 24px rgba(0,180,216,.25);
  --font-main: 'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; background-color: #1a2438; }
a { color: var(--accent); text-decoration: none; transition: all .25s ease; }
a:hover { color: var(--accent-hover); }
ul, ol { list-style: none; }
button { font-family: var(--font-main); }
.container { max-width: 1200px; }

/* utility */
.text-link {
  color: var(--accent);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.text-link i { transition: transform .25s ease; }
.text-link:hover i { transform: translateX(4px); }
.section-pad { padding: 88px 0; }

/* button system */
.btn {
  border-radius: var(--radius-sm);
  font-weight: 500;
  padding: 10px 24px;
  transition: all .25s ease;
  border: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.btn-primary {
  background: linear-gradient(120deg, #00B4D8, #00D4AA);
  color: #fff;
  box-shadow: 0 0 20px rgba(0,180,216,.25);
}
.btn-primary:hover {
  background: linear-gradient(120deg, #22D3EE, #00E0B8);
  color: #fff;
  box-shadow: 0 0 30px rgba(0,180,216,.45);
  transform: translateY(-1px);
}
.btn-primary:active {
  background: linear-gradient(120deg, #0090B0, #00b58e);
  box-shadow: 0 0 12px rgba(0,180,216,.2);
  transform: translateY(1px);
}
.btn-primary:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(0,180,216,.3), 0 0 20px rgba(0,180,216,.25);
}
.btn-outline-tech {
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--accent);
}
.btn-outline-tech:hover {
  border-color: var(--accent);
  color: var(--accent-hover);
  background: rgba(0,180,216,.08);
}
.btn-outline-tech:active {
  border-color: var(--accent-active);
  color: var(--accent-active);
  background: rgba(0,180,216,.16);
}
.btn-glow {
  position: relative;
  overflow: hidden;
}
.btn-glow::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -30%;
  width: 40%;
  height: 200%;
  background: rgba(255,255,255,.15);
  transform: rotate(25deg);
  transition: left .5s ease;
}
.btn-glow:hover::after { left: 120%; }
.btn-block { width: 100%; }

/* badges */
.pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(0,180,216,.12);
  color: var(--accent);
  font-size: 12px;
  font-weight: 500;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(0,180,216,.2);
}

/* pre nav */
.pre-nav {
  height: 32px;
  background: #060A14;
  display: flex;
  align-items: center;
  font-size: 12px;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(255,255,255,.04);
}
.pre-nav .container { display: flex; align-items: center; justify-content: space-between; }
.pre-left { display: flex; align-items: center; gap: 8px; }
.status-dot {
  width: 8px; height: 8px;
  background: var(--accent-glow);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 10px rgba(0,212,170,.6);
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 10px rgba(0,212,170,.6); }
  50% { opacity: .7; box-shadow: 0 0 16px rgba(0,212,170,.9); }
}
.pre-right a, .pre-right a:hover { color: var(--text-secondary); font-size: 12px; }
.pre-right a:hover { color: var(--accent); }

/* header nav */
.main-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: 56px;
  background: rgba(11,17,32,.68);
  transition: all .3s ease;
}
.main-header.header-scrolled {
  background: rgba(11,17,32,.72);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-normal);
}
.main-header .navbar {
  min-height: 56px;
  padding: 0;
}
.navbar-brand {
  padding: 0;
  margin-right: 0;
  display: flex;
  align-items: center;
}
.brand-text {
  font-size: 18px;
  font-weight: 900;
  color: var(--text-primary);
  letter-spacing: .5px;
  background: linear-gradient(120deg, #E8F0F8, #00D4AA);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.navbar-nav {
  gap: 4px;
  margin-left: 32px;
}
.nav-item .nav-link {
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 400;
  padding: 8px 16px !important;
  border-radius: var(--radius-sm);
  transition: all .25s ease;
  position: relative;
}
.nav-item .nav-link:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,.04);
}
.nav-item .nav-link.active {
  color: var(--accent);
  font-weight: 500;
}
.nav-item .nav-link.active::after {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(0,180,216,.4);
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}
.btn-search {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .25s ease;
  cursor: pointer;
}
.btn-search:hover { color: var(--accent); background: rgba(0,180,216,.08); border-color: var(--border-normal); }
.search-box {
  width: 0;
  overflow: hidden;
  opacity: 0;
  transition: all .3s ease;
  position: absolute;
  top: 56px;
  right: 120px;
  background: rgba(11,17,32,.95);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  z-index: 1001;
}
.search-box.active {
  width: 200px;
  opacity: 1;
  padding: 6px 10px;
}
.search-box input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: 13px;
  width: 100%;
  font-family: var(--font-main);
}
.nav-actions-mobile { display: flex; align-items: center; gap: 8px; }
.navbar-toggler {
  border: none;
  padding: 6px 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: transparent;
}
.navbar-toggler span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all .3s ease;
}
.navbar-toggler:focus { box-shadow: none; }
@media (max-width: 991.98px) {
  .navbar-collapse {
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background: #0B1120;
    border-bottom: 1px solid var(--border-normal);
    padding: 12px 24px 20px;
    box-shadow: 0 16px 32px rgba(0,0,0,.4);
  }
  .navbar-nav { margin-left: 0; gap: 0; margin-bottom: 8px; }
  .nav-item .nav-link { padding: 12px 8px !important; }
  .nav-item .nav-link.active::after { left: 8px; right: auto; width: 24px; bottom: 6px; }
  .nav-right { margin-left: 0; padding-top: 8px; border-top: 1px solid var(--border-light); }
  .search-box { position: static; width: 100% !important; opacity: 1; display: none; padding: 6px 10px !important; margin: 8px 0; background: rgba(255,255,255,.04); border-radius: var(--radius-sm); }
  .search-box.active { display: block; }
}
@media (max-width: 575.98px) {
  .brand-text { font-size: 16px; }
  .nav-right .btn-glow { font-size: 13px; padding: 8px 16px; }
}

/* hero */
.hero {
  position: relative;
  min-height: calc(100vh - 88px);
  display: flex;
  align-items: center;
  padding: 64px 0;
  overflow: hidden;
  background: radial-gradient(ellipse at 90% 20%, rgba(0,180,216,.08), transparent 50%),
              radial-gradient(ellipse at 10% 80%, rgba(0,212,170,.05), transparent 50%);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.hero-content { grid-column: 1; grid-row: 1; padding-right: 24px; }
.hero-visual { grid-column: 2; grid-row: 1; position: relative; border-radius: var(--radius-lg); overflow: hidden; height: 420px; }
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(.72) contrast(1.08) saturate(.9);
}
.hero-visual-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11,17,32,.7), rgba(11,17,32,.2)), rgba(11,17,32,.1);
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(245,185,66,.1);
  border: 1px solid rgba(245,185,66,.25);
  color: var(--gold);
  font-size: 12px;
  font-weight: 500;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 20px;
}
.hero h1 {
  font-size: 52px;
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 18px;
  letter-spacing: -0.5px;
  color: var(--text-primary);
}
.hero-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 420px;
}
.hero-ctas {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.hero-trust {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.trust-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-secondary);
  background: rgba(255,255,255,.04);
  border: 1px solid var(--border-light);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
}
.trust-badge i { color: var(--accent-glow); font-size: 12px; }
.hero-glass-card {
  position: absolute;
  right: 24px;
  bottom: 24px;
  left: 35%;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-radius: var(--radius-lg);
  box-shadow: 0 16px 40px rgba(0,0,0,.35);
  padding: 20px 24px;
  z-index: 2;
}
.glass-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 14px;
}
.glass-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  margin-bottom: 6px;
}
.glass-info span { color: var(--text-muted); }
.glass-info strong { color: var(--text-primary); font-weight: 500; }
.glass-progress {
  height: 4px;
  background: rgba(255,255,255,.08);
  border-radius: 4px;
  overflow: hidden;
  margin: 12px 0 8px;
}
.glass-progress .progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-glow));
  border-radius: 4px;
  width: 85%;
}
.glass-hint {
  font-size: 11px;
  color: var(--text-muted);
}
@media (max-width: 991.98px) {
  .hero { padding: 40px 0 64px; min-height: auto; }
  .hero-grid { grid-template-columns: 1fr; gap: 24px; }
  .hero-content { grid-column: 1; grid-row: 2; padding-right: 0; text-align: center; }
  .hero-visual { grid-column: 1; grid-row: 1; height: 240px; }
  .hero h1 { font-size: 30px; }
  .hero-subtitle { margin-left: auto; margin-right: auto; }
  .hero-ctas { justify-content: center; }
  .hero-trust { justify-content: center; }
  .hero-glass-card { left: 20%; right: 20px; bottom: 16px; padding: 14px 16px; }
}
@media (max-width: 575.98px) {
  .hero h1 { font-size: 28px; }
  .hero-glass-card { left: 16px; }
  .hero-ctas .btn { width: 100%; max-width: 280px; }
}

/* pain points */
.pain-points {
  background: var(--bg-primary);
  padding: 88px 0;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}
.section-head { margin-bottom: 48px; max-width: 720px; }
.section-head h2 {
  font-size: 32px;
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 12px;
  color: var(--text-primary);
}
.section-head p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
}
.pain-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: start;
}
.pain-col { display: flex; flex-direction: column; gap: 16px; width: 100%; }
.pain-col-right { padding-top: 48px; }
.pain-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  transition: all .3s ease;
  cursor: pointer;
  position: relative;
}
.pain-card:hover {
  border-color: rgba(0,180,216,.4);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}
.pain-card:hover .pain-title { color: var(--accent-hover); }
.pain-head {
  display: flex;
  align-items: center;
  gap: 14px;
}
.pain-num {
  font-size: 13px;
  font-weight: 900;
  color: var(--accent);
  background: rgba(0,180,216,.1);
  border-radius: 8px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.pain-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
  transition: color .25s ease;
}
.pain-card > i {
  color: var(--text-muted);
  font-size: 12px;
  transition: transform .3s ease;
}
.pain-card:hover > i {
  transform: translateY(3px);
  color: var(--accent);
}
.pain-card .pain-arrow { display: none; }
.pain-card > i.fa-chevron-down { align-self: center; }
.pain-card > i.fa-chevron-right { display: none; }
.pain-card .pain-solution {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
}
.pain-card:hover .pain-solution,
.pain-card:focus .pain-solution {
  max-height: 80px;
  padding-top: 10px;
}
.pain-solution p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  border-left: 3px solid var(--accent);
  padding-left: 12px;
}
@media (max-width: 767.98px) {
  .pain-grid { grid-template-columns: 1fr; }
  .pain-col-right { padding-top: 0; }
  .section-head h2 { font-size: 26px; }
  .pain-points { padding: 64px 0; }
}

/* solutions */
.solutions { background: linear-gradient(180deg, #0B1120, #090E1A); padding: 88px 0; }
.solution-main {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-normal);
  border-radius: var(--radius-lg);
  padding: 40px;
  display: flex;
  align-items: center;
  gap: 40px;
  margin-bottom: 24px;
  position: relative;
  overflow: hidden;
}
.solution-main::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(0,180,216,.16), transparent 70%);
  pointer-events: none;
}
.solution-main-content { flex: 1; position: relative; z-index: 1; }
.solution-main-content h3 {
  font-size: 26px;
  font-weight: 900;
  margin-bottom: 10px;
  color: var(--text-primary);
}
.solution-main-content p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 520px;
}
.solution-main-image {
  width: 200px;
  height: 140px;
  border-radius: var(--radius-md);
  overflow: hidden;
  flex-shrink: 0;
  border: 1px solid var(--border-normal);
  position: relative;
  z-index: 1;
}
.solution-main-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.solution-sub-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.solution-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: all .3s ease;
}
.solution-card:hover {
  border-color: rgba(0,180,216,.4);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}
.solution-card > i {
  font-size: 28px;
  color: var(--accent);
  margin-bottom: 16px;
  display: inline-block;
}
.solution-card h4 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.solution-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}
.solution-card a {
  color: var(--accent);
  font-size: 14px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.solution-card a i { transition: transform .25s ease; font-size: 14px; margin: 0; }
.solution-card a:hover i { transform: translateX(4px); }
.solution-card.glass-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 16px 40px rgba(0,0,0,.35);
}
@media (max-width: 991.98px) {
  .solution-main { flex-direction: column; text-align: center; padding: 32px 24px; }
  .solution-main-content p { margin-left: auto; margin-right: auto; }
  .solution-main-image { width: 100%; height: 180px; }
  .solution-sub-grid { grid-template-columns: 1fr; }
}
@media (max-width: 575.98px) {
  .solution-main-content h3 { font-size: 20px; }
  .solutions { padding: 64px 0; }
}

/* stats */
.stats { padding: 64px 0; background: var(--bg-primary); border-bottom: 1px solid var(--border-light); }
.stats-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-radius: var(--radius-lg);
  box-shadow: 0 16px 40px rgba(0,0,0,.35);
  padding: 48px 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.stat-big {
  font-size: 48px;
  font-weight: 900;
  color: var(--gold);
  text-shadow: 0 0 20px rgba(245,185,66,.3);
  line-height: 1.2;
  margin-bottom: 8px;
  letter-spacing: 1px;
  font-variant-numeric: tabular-nums;
}
.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 2px;
  text-transform: uppercase;
}
.stats-divider {
  margin-top: 32px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.08), transparent);
}
@media (max-width: 767.98px) {
  .stats-card { grid-template-columns: 1fr 1fr; padding: 32px 16px; gap: 32px 16px; }
  .stat-big { font-size: 32px; }
}

/* news / cms list */
.news-section { padding: 88px 0; }
.news-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 16px;
}
.news-grid { display: grid; grid-template-columns: 7fr 5fr; gap: 32px; }
.timeline-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  gap: 20px;
  margin-bottom: 16px;
  transition: all .3s ease;
  position: relative;
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: -1px;
  top: 20px;
  bottom: 20px;
  width: 3px;
  background: linear-gradient(180deg, var(--accent), var(--accent-glow));
  border-radius: 3px;
  opacity: 0;
  transition: opacity .3s ease;
}
.timeline-item:hover {
  border-color: rgba(0,180,216,.4);
  transform: translateX(4px);
  box-shadow: var(--shadow-card);
}
.timeline-item:hover::before { opacity: 1; }
.timeline-thumb {
  width: 160px;
  height: 90px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  background-color: #1a2438;
  border: 1px solid var(--border-light);
}
.timeline-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.timeline-item:hover .timeline-thumb img { transform: scale(1.05); }
.timeline-content { flex: 1; min-width: 0; }
.timeline-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
  font-size: 12px;
}
.pill-tag {
  background: rgba(0,180,216,.12);
  color: var(--accent);
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 500;
}
.timeline-meta time { color: var(--text-muted); }
.timeline-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
  line-height: 1.4;
}
.timeline-title a { color: var(--text-primary); }
.timeline-title a:hover { color: var(--accent-hover); }
.timeline-excerpt {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.timeline-content .text-link { font-size: 13px; }
.empty-state {
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-md);
  padding: 48px 24px;
  text-align: center;
  color: var(--text-muted);
  background: transparent;
}
.empty-state i { font-size: 32px; margin-bottom: 12px; color: var(--text-muted); display: block; }
.empty-state p { font-size: 14px; }
.tag-cloud { padding: 24px; background: var(--bg-secondary); border-radius: var(--radius-md); border: 1px solid var(--border-light); }
.tag-cloud h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-primary);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-light);
}
.tag-cloud .tag-list { display: flex; flex-wrap: wrap; gap: 10px; }
.tag-chip {
  display: inline-block;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  font-size: 13px;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  transition: all .25s ease;
}
.tag-chip:hover {
  color: var(--accent);
  border-color: rgba(0,180,216,.4);
  background: rgba(0,180,216,.06);
  transform: translateY(-2px);
}
.tag-cloud .note-box {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
}
.tag-cloud .note-box i { color: var(--accent); margin-right: 4px; }
@media (max-width: 991.98px) {
  .news-grid { grid-template-columns: 1fr; }
  .news-section { padding: 64px 0; }
}
@media (max-width: 575.98px) {
  .timeline-item { flex-direction: column; gap: 12px; padding: 16px; }
  .timeline-thumb { width: 100%; height: 130px; }
  .section-head h2 { font-size: 26px; }
}

/* cta */
.cta-section {
  position: relative;
  padding: 96px 0;
  overflow: hidden;
  text-align: center;
}
.cta-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(.35) contrast(1.05);
  z-index: 0;
}
.cta-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11,17,32,.92), rgba(11,17,32,.7));
  z-index: 0;
}
.cta-section .container { position: relative; z-index: 1; }
.cta-section h2 {
  font-size: 32px;
  font-weight: 900;
  color: var(--text-primary);
  margin-bottom: 16px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}
.cta-section p.cta-desc {
  color: var(--text-secondary);
  font-size: 15px;
  max-width: 480px;
  margin: 0 auto 32px;
  line-height: 1.7;
}
.cta-section .btn-lg { font-size: 16px; padding: 14px 36px; }
.cta-badges {
  display: flex;
  gap: 24px;
  justify-content: center;
  margin-top: 24px;
  flex-wrap: wrap;
}
.cta-badges span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-secondary);
}
.cta-badges span i { color: var(--accent-glow); }
@media (max-width: 575.98px) {
  .cta-section { padding: 64px 0; }
  .cta-section h2 { font-size: 24px; }
}

/* footer */
.footer {
  background: #060A14;
  border-top: 1px solid rgba(255,255,255,.05);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand .footer-logo {
  font-size: 20px;
  font-weight: 900;
  color: var(--text-primary);
  margin-bottom: 14px;
}
.footer-brand p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 16px;
  max-width: 260px;
}
.footer-icp {
  font-size: 12px;
  color: var(--text-muted);
  background: rgba(255,255,255,.03);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
  font-size: 13px;
  color: var(--text-muted);
  transition: color .25s ease;
}
.footer-col ul li a:hover { color: var(--accent); }
.footer-col .footer-tip {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 8px;
  padding-left: 16px;
  position: relative;
}
.footer-col .footer-tip::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px rgba(0,180,216,.5);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.04);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 12px;
  color: var(--text-muted);
}
.footer-bottom a { color: var(--text-muted); }
.footer-bottom a:hover { color: var(--accent); }
@media (max-width: 991.98px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 575.98px) {
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* modal */
.modal-backdrop { background: rgba(2,8,22,.7); backdrop-filter: blur(4px); }
.modal-content {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 48px rgba(0,0,0,.5);
  padding: 32px;
  position: relative;
}
.modal-backdrop.show { opacity: 1; }
.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all .25s ease;
  z-index: 10;
}
.modal-close:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,.08);
}
.modal-title-custom {
  font-size: 20px;
  font-weight: 900;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.modal-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.7;
}
.modal-content .form-group { margin-bottom: 18px; }
.modal-content .form-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
  display: block;
}
.modal-content .form-control,
.modal-content .form-select {
  background: #0B1120;
  border: 1px solid #24304A;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 14px;
  padding: 10px 16px;
  min-height: 42px;
  font-family: var(--font-main);
}
.modal-content .form-control:focus,
.modal-content .form-select:focus {
  background: #0B1120;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0,180,216,.3);
  color: var(--text-primary);
}
.modal-content .form-control::placeholder { color: var(--text-muted); }
.modal-content .form-check {
  margin-bottom: 14px;
}
.modal-content .form-check-input {
  width: 16px;
  height: 16px;
  margin-top: 3px;
  background: #0B1120;
  border-color: #24304A;
}
.modal-content .form-check-input:checked {
  background-color: var(--accent);
  border-color: var(--accent);
}
.modal-content .form-check-input:focus {
  box-shadow: 0 0 0 3px rgba(0,180,216,.3);
}
.modal-content .form-check-label {
  font-size: 12px;
  color: var(--text-secondary);
}
.privacy-note {
  font-size: 12px;
  color: var(--text-muted);
  background: rgba(11,17,32,.4);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin-bottom: 18px;
  line-height: 1.6;
}
.privacy-note a { color: var(--accent); font-size: 12px; }
@media (max-width: 575.98px) {
  .modal-content { padding: 24px 20px; }
  .modal-close { top: 8px; right: 8px; }
}

/* misc */
.text-primary-custom { color: var(--text-primary) !important; }
.bg-secondary-custom { background: var(--bg-secondary) !important; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* roulang page: category1 */
:root {
            --bg-primary: #0B1120;
            --bg-secondary: #111A2B;
            --bg-tertiary: #131C2E;
            --text-primary: #E8F0F8;
            --text-secondary: #9AA8B9;
            --text-muted: #64748B;
            --accent: #00B4D8;
            --accent-hover: #22D3EE;
            --accent-dark: #0090B0;
            --accent2: #00D4AA;
            --gold: #F5B942;
            --glass-bg: rgba(255, 255, 255, .06);
            --glass-border: rgba(255, 255, 255, .12);
            --card-border: rgba(255, 255, 255, .06);
            --border-normal: #24304A;
            --radius-lg: 20px;
            --radius-md: 16px;
            --radius-sm: 10px;
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, .35);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, .25);
            --header-height: 56px;
            --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-main);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            padding-top: var(--header-height);
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color .2s ease;
        }
        a:hover {
            color: var(--accent-hover);
        }

        img {
            max-width: 100%;
            height: auto;
        }

        .container {
            max-width: 1200px;
        }

        /* ===== Header / Nav ===== */
        .main-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(11, 17, 32, .85);
            -webkit-backdrop-filter: blur(16px);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, .08);
            transition: background .3s ease, box-shadow .3s ease;
        }

        .main-header.scrolled {
            background: rgba(11, 17, 32, .72);
            box-shadow: var(--shadow-md);
        }

        .main-header .navbar {
            height: var(--header-height);
            padding: 0;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 0;
            margin-right: 32px;
        }

        .brand-text {
            font-size: 18px;
            font-weight: 900;
            letter-spacing: .5px;
            color: var(--text-primary);
            white-space: nowrap;
        }

        .navbar-nav {
            display: flex;
            gap: 4px;
            align-items: center;
        }

        .nav-link {
            font-size: 14px;
            font-weight: 400;
            color: var(--text-secondary);
            padding: 8px 16px;
            position: relative;
            white-space: nowrap;
            transition: color .2s ease;
            border-radius: var(--radius-sm);
        }
        .nav-link:hover {
            color: var(--text-primary);
        }
        .nav-link.active {
            color: var(--accent);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 22px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-left: auto;
        }

        .btn-search {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, .12);
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            width: 36px;
            height: 36px;
            font-size: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all .2s ease;
            padding: 0;
        }
        .btn-search:hover {
            color: var(--accent);
            border-color: var(--accent);
        }

        .search-box {
            display: none;
            position: absolute;
            right: 145px;
            top: 50%;
            transform: translateY(-50%);
            width: 180px;
            padding: 4px 4px 4px 12px;
            background: var(--bg-primary);
            border: 1px solid var(--border-normal);
            border-radius: var(--radius-sm);
            z-index: 999;
            box-shadow: var(--shadow-md);
        }
        .search-box.open {
            display: block;
        }
        .search-box input {
            width: 100%;
            background: transparent;
            border: 0;
            outline: none;
            color: var(--text-primary);
            font-size: 13px;
            padding: 6px 0;
        }
        .search-box input::placeholder {
            color: var(--text-muted);
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent), var(--accent2));
            border: none;
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            border-radius: var(--radius-sm);
            padding: 8px 20px;
            height: 36px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            box-shadow: 0 4px 14px rgba(0, 180, 216, .3);
            transition: all .2s ease;
            cursor: pointer;
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, var(--accent-hover), var(--accent2));
            box-shadow: 0 6px 20px rgba(0, 180, 216, .45);
        }
        .btn-primary:active {
            filter: brightness(.9);
        }
        .btn-primary:focus-visible {
            outline: none;
            box-shadow: 0 0 0 3px rgba(0, 180, 216, .3);
        }
        .btn-glow {
            box-shadow: 0 4px 14px rgba(0, 180, 216, .35);
        }
        .btn-glow:hover {
            box-shadow: 0 8px 24px rgba(0, 180, 216, .5);
        }

        .navbar-toggler {
            border: none;
            padding: 8px;
            display: flex;
            flex-direction: column;
            gap: 4px;
            background: transparent;
        }
        .navbar-toggler span {
            width: 22px;
            height: 2px;
            background: var(--text-primary);
            display: block;
            border-radius: 2px;
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: none;
        }

        .nav-actions-mobile {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-left: auto;
        }

        /* ===== Category Hero ===== */
        .category-hero {
            position: relative;
            min-height: 240px;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            padding: 60px 0;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(103deg, rgba(11, 17, 32, .94) 15%, rgba(11, 17, 32, .75) 60%, rgba(11, 17, 32, .55));
        }
        .category-hero .container {
            position: relative;
            z-index: 1;
        }
        .category-hero h1 {
            font-size: 40px;
            font-weight: 900;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: .02em;
        }
        .category-hero .hero-sub {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 640px;
            line-height: 1.7;
            margin-bottom: 0;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(0, 180, 216, .12);
            border: 1px solid rgba(0, 180, 216, .25);
            color: var(--accent);
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 18px;
            letter-spacing: .5px;
        }
        .hero-tag i {
            font-size: 10px;
        }

        /* ===== Feature Cards ===== */
        .section-block {
            padding: 80px 0;
        }
        .section-title {
            font-size: 30px;
            font-weight: 900;
            color: var(--text-primary);
            margin-bottom: 10px;
            letter-spacing: .02em;
        }
        .section-sub {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 640px;
            margin-bottom: 40px;
            line-height: 1.7;
        }
        .section-head {
            margin-bottom: 48px;
        }
        .section-head .section-sub {
            margin-bottom: 0;
        }

        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-secondary);
            border: 1px solid var(--card-border);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            transition: all .25s ease;
        }
        .feature-card:hover {
            border-color: rgba(0, 180, 216, .4);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            background: rgba(0, 180, 216, .12);
            color: var(--accent);
            font-size: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
        }
        .feature-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== Guide List ===== */
        .guide-section {
            padding: 70px 0;
            background: var(--bg-secondary);
            border-block: 1px solid rgba(255, 255, 255, .04);
        }
        .guide-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .guide-card {
            background: var(--bg-tertiary);
            border: 1px solid var(--card-border);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            display: flex;
            align-items: center;
            gap: 20px;
            transition: all .25s ease;
        }
        .guide-card:hover {
            border-color: rgba(0, 180, 216, .4);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .guide-card:nth-child(odd) {
            margin-left: 24px;
        }
        .guide-card:nth-child(even) {
            margin-left: 0;
        }
        .guide-icon {
            width: 46px;
            height: 46px;
            border-radius: 12px;
            background: rgba(0, 180, 216, .12);
            border: 1px solid rgba(0, 180, 216, .2);
            color: var(--accent);
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .guide-info {
            flex: 1;
            min-width: 0;
        }
        .guide-info h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .guide-info p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 0;
        }
        .guide-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 500;
            color: var(--accent);
            white-space: nowrap;
            padding: 8px 12px;
            border-radius: 8px;
            transition: all .2s ease;
        }
        .guide-link:hover {
            background: rgba(0, 180, 216, .1);
            gap: 12px;
            color: var(--accent-hover);
        }
        .guide-link i {
            font-size: 12px;
            transition: transform .2s ease;
        }

        /* ===== Path Visual ===== */
        .path-section {
            padding: 80px 0;
        }
        .path-card {
            background: var(--bg-secondary);
            border: 1px solid var(--card-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
        }
        .path-content {
            padding: 44px 40px;
        }
        .path-content h2 {
            font-size: 26px;
            font-weight: 900;
            margin-bottom: 24px;
            color: var(--text-primary);
        }
        .path-steps {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .path-steps li {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 15px;
            color: var(--text-primary);
            padding: 12px 16px;
            background: rgba(255, 255, 255, .03);
            border-radius: var(--radius-sm);
            border-left: 3px solid var(--accent);
        }
        .path-steps li span {
            font-size: 13px;
            font-weight: 900;
            color: var(--accent);
            background: rgba(0, 180, 216, .1);
            padding: 4px 8px;
            border-radius: 6px;
            min-width: 40px;
            text-align: center;
            font-variant-numeric: tabular-nums;
        }
        .path-img-wrap {
            min-height: 320px;
            background: var(--bg-tertiary);
        }
        .path-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 320px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 80px 0;
            background: var(--bg-secondary);
            border-block: 1px solid rgba(255, 255, 255, .04);
        }
        .accordion {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .accordion-item {
            background: var(--bg-tertiary);
            border: 1px solid var(--card-border) !important;
            border-radius: var(--radius-md) !important;
            overflow: hidden;
            transition: border-color .2s ease;
        }
        .accordion-item:hover {
            border-color: rgba(0, 180, 216, .3) !important;
        }
        .accordion-header {
            margin: 0;
        }
        .accordion-button {
            background: transparent;
            color: var(--text-primary);
            font-size: 15px;
            font-weight: 600;
            padding: 18px 20px;
            display: flex;
            align-items: center;
            gap: 12px;
            border: none;
            box-shadow: none;
        }
        .accordion-button:not(.collapsed) {
            background: rgba(0, 180, 216, .06);
            color: var(--text-primary);
            box-shadow: none;
        }
        .accordion-button:focus {
            box-shadow: none;
            outline: none;
        }
        .accordion-button::after {
            flex-shrink: 0;
            opacity: .7;
        }
        .accordion-button:not(.collapsed)::after {
            opacity: 1;
        }
        .faq-q-icon {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: rgba(0, 180, 216, .12);
            color: var(--accent);
            font-size: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .accordion-body {
            padding: 0 20px 20px 60px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            border-left: 4px solid var(--accent);
            margin-left: 20px;
            margin-right: 20px;
            border-radius: 0 0 0 8px;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 80px 0;
            text-align: center;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(11, 17, 32, .82);
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-title {
            font-size: 32px;
            font-weight: 900;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .cta-msg {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 28px;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }
        .cta-trust {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
            margin-top: 20px;
        }
        .cta-trust span {
            font-size: 12px;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .cta-trust span i {
            color: var(--accent2);
            font-size: 12px;
        }

        /* ===== Footer ===== */
        .footer {
            background: #0A0F1B;
            border-top: 1px solid rgba(255, 255, 255, .05);
            padding: 60px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 18px;
            font-weight: 900;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
            max-width: 280px;
        }
        .footer-icp {
            font-size: 12px;
            color: var(--text-muted);
            display: block;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: .3px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color .2s ease;
        }
        .footer-col ul a:hover {
            color: var(--accent);
        }
        .footer-tip {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .footer-tip:before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent2);
            display: inline-block;
            flex-shrink: 0;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .04);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: var(--text-muted);
            flex-wrap: wrap;
            gap: 10px;
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== Modal ===== */
        .modal-content {
            border-radius: var(--radius-lg);
            background: linear-gradient(145deg, rgba(17, 26, 43, .96), rgba(11, 17, 32, .98));
            border: 1px solid rgba(255, 255, 255, .1);
            -webkit-backdrop-filter: blur(18px);
            backdrop-filter: blur(18px);
            box-shadow: var(--shadow-lg);
            color: var(--text-primary);
            padding: 36px;
            position: relative;
        }
        .modal-backdrop.show {
            opacity: .7;
        }
        .btn-close-modal {
            position: absolute;
            top: 14px;
            right: 14px;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .08);
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all .2s ease;
            font-size: 16px;
        }
        .btn-close-modal:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, .1);
            border-color: var(--accent);
        }
        .modal-title {
            font-size: 22px;
            font-weight: 900;
            margin-bottom: 8px;
        }
        .modal-desc {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 24px;
            line-height: 1.7;
        }
        .form-control {
            background: var(--bg-primary);
            border: 1px solid var(--border-normal);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 14px;
            padding: 10px 14px;
            transition: all .2s ease;
            margin-bottom: 0;
        }
        .form-control:focus {
            background: var(--bg-primary);
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(0, 180, 216, .2);
            color: var(--text-primary);
        }
        .form-control::placeholder {
            color: var(--text-muted);
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            display: block;
            margin-bottom: 8px;
        }
        .form-check {
            margin: 20px 0;
        }
        .form-check-input {
            background: var(--bg-primary);
            border: 1px solid var(--border-normal);
        }
        .form-check-input:checked {
            background-color: var(--accent);
            border-color: var(--accent);
        }
        .form-check-label {
            font-size: 13px;
            color: var(--text-secondary);
        }
        .privacy-note {
            margin-top: 16px;
            font-size: 12px;
            color: var(--text-muted);
            text-align: center;
            line-height: 1.8;
        }
        .privacy-note a {
            font-size: 12px;
        }
        .modal-privacy .privacy-body {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 20px 0;
            max-height: 220px;
            overflow-y: auto;
            padding-right: 8px;
        }
        .modal-privacy .privacy-body p {
            margin-bottom: 12px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1199.98px) {
            .container {
                max-width: 100%;
                padding-left: 24px;
                padding-right: 24px;
            }
        }

        @media (max-width: 991.98px) {
            .navbar-collapse {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: #0B1120;
                padding: 20px 24px 28px;
                border-bottom: 1px solid rgba(255, 255, 255, .08);
                z-index: 999;
                box-shadow: var(--shadow-lg);
            }
            .navbar-nav {
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                margin-bottom: 16px;
            }
            .nav-link {
                padding: 12px 8px;
                font-size: 15px;
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-link.active {
                background: rgba(0, 180, 216, .1);
                border-radius: var(--radius-sm);
            }
            .nav-right {
                margin-left: 0;
                flex-wrap: wrap;
                gap: 10px;
            }
            .nav-right .btn-search {
                display: none;
            }
            .search-box {
                position: static;
                transform: none;
                width: 100%;
                margin-top: 10px;
                margin-bottom: 10px;
            }
            .search-box.open {
                display: block;
            }
            .feature-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .path-content {
                padding: 32px 24px;
            }
            .guide-card:nth-child(odd) {
                margin-left: 0;
            }
            .guide-card {
                flex-direction: column;
                align-items: flex-start;
            }
            .guide-link {
                align-self: flex-start;
                margin-top: 4px;
            }
            .section-block,
            .path-section,
            .faq-section,
            .guide-section {
                padding: 56px 0;
            }
            .cta-section {
                padding: 60px 0;
            }
            .cta-title {
                font-size: 26px;
            }
        }

        @media (max-width: 767.98px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
            .brand-text {
                font-size: 16px;
            }
            .category-hero {
                min-height: 200px;
                padding: 48px 0;
            }
            .category-hero h1 {
                font-size: 30px;
            }
            .category-hero .hero-sub {
                font-size: 14px;
            }
            .section-title {
                font-size: 24px;
            }
            .section-sub {
                font-size: 14px;
            }
            .guide-card {
                padding: 20px;
            }
            .guide-info h3 {
                font-size: 15px;
            }
            .guide-info p {
                font-size: 13px;
            }
            .feature-card {
                padding: 28px 22px;
            }
            .path-steps li {
                font-size: 14px;
                flex-wrap: wrap;
            }
            .path-img-wrap img {
                min-height: 220px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .modal-content {
                padding: 28px 20px;
            }
            .accordion-body {
                margin-left: 12px;
                margin-right: 12px;
                padding: 0 14px 16px 40px;
            }
            .cta-actions {
                flex-direction: column;
                align-items: center;
            }
            .cta-trust {
                flex-direction: column;
                gap: 10px;
            }
        }

        @media (max-width: 519.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .brand-text {
                font-size: 15px;
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .hero-tag {
                font-size: 11px;
                padding: 3px 10px;
            }
            .section-block,
            .path-section,
            .faq-section {
                padding: 48px 0;
            }
            .guide-card {
                padding: 18px 16px;
            }
            .guide-icon {
                width: 40px;
                height: 40px;
                font-size: 16px;
            }
            .path-content {
                padding: 24px 18px;
            }
            .path-content h2 {
                font-size: 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-brand {
                grid-column: 1;
            }
            .accordion-button {
                font-size: 14px;
                padding: 16px 14px;
            }
            .accordion-body {
                padding: 0 12px 14px 34px;
            }
            .modal-content {
                padding: 24px 16px;
            }
            .btn-primary {
                font-size: 13px;
                padding: 8px 16px;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #0B1120;
            --bg-secondary: #111A2B;
            --bg-tertiary: #131C2E;
            --text-primary: #E8F0F8;
            --text-secondary: #9AA8B9;
            --text-muted: #64748B;
            --brand: #00B4D8;
            --brand-light: #22D3EE;
            --brand-dark: #0090B0;
            --quantum: #00D4AA;
            --gold: #F5B942;
            --border: rgba(255,255,255,.06);
            --border-light: rgba(255,255,255,.08);
            --radius: 16px;
            --radius-lg: 20px;
            --radius-sm: 10px;
            --shadow: 0 8px 30px rgba(0,0,0,.25);
            --shadow-glow: 0 0 24px rgba(0,180,216,.35);
            --transition: all .3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

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

        a:hover {
            color: var(--brand-light);
        }

        ul, ol {
            padding-left: 1.25rem;
        }

        .container {
            max-width: 1200px;
        }

        /* ===== 按钮体系 ===== */
        .btn {
            border-radius: var(--radius-sm);
            font-weight: 500;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--brand), var(--quantum));
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 500;
            padding: 10px 24px;
            box-shadow: 0 0 20px rgba(0,180,216,.3);
            transition: var(--transition);
            border: none;
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, var(--brand-light), #00e6a0);
            color: #fff;
            box-shadow: 0 0 36px rgba(0,180,216,.55);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            filter: brightness(.9);
            transform: translateY(0);
            box-shadow: 0 0 16px rgba(0,180,216,.4);
        }

        .btn-primary:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(0,180,216,.3), 0 0 20px rgba(0,180,216,.3);
        }

        .btn-glow {
            box-shadow: 0 0 24px rgba(0,180,216,.35);
        }

        .btn-glow:hover {
            box-shadow: 0 0 36px rgba(0,180,216,.6);
        }

        .btn-outline {
            background: transparent;
            border: 1px solid rgba(255,255,255,.12);
            color: var(--brand);
            border-radius: var(--radius-sm);
            padding: 10px 24px;
            font-weight: 500;
            transition: var(--transition);
        }

        .btn-outline:hover {
            border-color: var(--brand);
            color: var(--brand-light);
            background: rgba(0,180,216,.08);
        }

        .btn-outline:active {
            background: rgba(0,180,216,.16);
            transform: translateY(0);
        }

        .btn-outline:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(0,180,216,.25);
        }

        .btn-sm {
            padding: 8px 20px;
            font-size: 14px;
        }

        /* ===== 导航 ===== */
        .main-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11,17,32,.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255,255,255,.08);
            transition: var(--transition);
        }

        .main-header.scrolled {
            background: rgba(11,17,32,.72);
            box-shadow: 0 16px 40px rgba(0,0,0,.3);
        }

        .navbar {
            min-height: 56px;
            padding: 8px 0;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0;
            margin: 0;
        }

        .brand-text {
            font-size: 20px;
            font-weight: 900;
            letter-spacing: .5px;
            color: var(--text-primary);
            background: linear-gradient(135deg, var(--text-primary), rgba(0,180,216,.8));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }

        .navbar-nav {
            gap: 6px;
            margin-left: 32px;
            align-items: center;
        }

        .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 14px;
            border-radius: 10px;
            transition: var(--transition);
            position: relative;
        }

        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(255,255,255,.04);
        }

        .nav-link.active {
            color: var(--brand) !important;
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 2px;
            border-radius: 2px;
            background: linear-gradient(90deg, var(--brand), var(--quantum));
        }

        .nav-actions-mobile {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-left: auto;
        }

        .nav-right {
            position: relative;
            display: flex;
            align-items: center;
            gap: 12px;
            margin-left: auto;
        }

        .btn-search {
            background: transparent;
            border: none;
            color: var(--text-secondary);
            font-size: 18px;
            cursor: pointer;
            padding: 8px 10px;
            border-radius: 10px;
            transition: var(--transition);
            line-height: 1;
        }

        .btn-search:hover {
            color: var(--brand);
            background: rgba(255,255,255,.05);
        }

        .search-box {
            position: absolute;
            right: 90px;
            top: 50%;
            transform: translateY(-50%) scaleX(.8);
            transform-origin: right;
            width: 0;
            opacity: 0;
            overflow: hidden;
            transition: all .3s ease;
            background: var(--bg-tertiary);
            border: 1px solid var(--border-light);
            border-radius: 10px;
            pointer-events: none;
        }

        .search-box.active {
            width: 200px;
            opacity: 1;
            transform: translateY(-50%) scaleX(1);
            padding: 8px 14px;
            pointer-events: auto;
        }

        .search-box input {
            background: transparent;
            border: none;
            color: var(--text-primary);
            width: 100%;
            outline: none;
            font-size: 14px;
        }

        .search-box input::placeholder {
            color: var(--text-muted);
        }

        .navbar-toggler {
            border: none;
            background: transparent;
            padding: 8px;
            width: 44px;
            height: 44px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            border-radius: 10px;
        }

        .navbar-toggler span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: var(--transition);
        }

        .navbar-toggler:hover {
            background: rgba(255,255,255,.05);
        }

        .navbar-toggler:focus {
            box-shadow: none;
            outline: none;
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-bar {
            background: rgba(255,255,255,.03);
            border-bottom: 1px solid var(--border-light);
            padding: 16px 0;
            margin-top: 56px;
            font-size: 12px;
        }

        .breadcrumb-bar .container {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 4px;
        }

        .breadcrumb-bar a {
            color: var(--text-muted);
            transition: var(--transition);
        }

        .breadcrumb-bar a:hover {
            color: var(--brand);
        }

        .breadcrumb-bar .sep {
            color: var(--text-muted);
            margin: 0 6px;
            font-size: 12px;
        }

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

        /* ===== 文章标题区 ===== */
        .article-header {
            padding: 56px 0 28px;
        }

        .article-header h1 {
            font-size: 32px;
            font-weight: 900;
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
            line-height: 1.4;
            letter-spacing: .5px;
            color: var(--text-primary);
        }

        .article-meta {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 28px;
            flex-wrap: wrap;
            margin-top: 20px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .article-meta i {
            color: var(--brand);
            font-size: 14px;
        }

        .meta-divider {
            border-top: 1px solid var(--border-light);
            margin-top: 36px;
        }

        /* ===== 正文阅读区 ===== */
        .article-content {
            padding: 48px 0 40px;
        }

        .article-body {
            max-width: 760px;
            margin: 0 auto;
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-secondary);
        }

        .article-body h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 1.6em 0 .8em;
            line-height: 1.4;
        }

        .article-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 1.4em 0 .6em;
            line-height: 1.4;
        }

        .article-body p {
            margin-bottom: 1.2em;
        }

        .article-body a {
            color: var(--brand);
            text-decoration: underline;
        }

        .article-body a:hover {
            color: var(--brand-light);
        }

        .article-body img {
            border-radius: 12px;
            margin: 1.5em 0;
            box-shadow: var(--shadow);
        }

        .article-body blockquote {
            border-left: 3px solid var(--brand);
            background: var(--bg-secondary);
            padding: 1em 1.4em;
            margin: 1.6em 0;
            border-radius: 0 10px 10px 0;
            color: var(--text-secondary);
        }

        .article-body blockquote p {
            margin-bottom: 0;
        }

        .article-body code {
            font-family: 'SFMono-Regular', Consolas, monospace;
            background: var(--bg-secondary);
            padding: .2em .5em;
            border-radius: 6px;
            font-size: .9em;
            color: var(--brand-light);
        }

        .article-body pre {
            background: var(--bg-secondary);
            border-radius: 12px;
            padding: 1.2em;
            margin: 1.6em 0;
            overflow-x: auto;
            border: 1px solid var(--border);
        }

        .article-body pre code {
            background: transparent;
            padding: 0;
            color: var(--text-primary);
        }

        .article-body ul,
        .article-body ol {
            margin-bottom: 1.2em;
            padding-left: 1.5em;
        }

        .article-body li {
            margin-bottom: .4em;
        }

        .article-body hr {
            border-color: var(--border-light);
            margin: 2em 0;
            opacity: 1;
        }

        /* 内容未找到 */
        .not-found {
            max-width: 600px;
            margin: 0 auto;
            text-align: center;
            padding: 60px 40px;
            background: var(--bg-secondary);
            border: 1px dashed rgba(0,180,216,.3);
            border-radius: var(--radius-lg);
        }

        .not-found i {
            font-size: 40px;
            color: var(--brand);
            margin-bottom: 16px;
        }

        .not-found h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .not-found p {
            color: var(--text-muted);
            margin-bottom: 24px;
            font-size: 15px;
        }

        /* ===== 返回导航 ===== */
        .article-nav-links {
            border-top: 1px solid var(--border-light);
            padding: 28px 0 56px;
        }

        .nav-links-wrap {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 760px;
            margin: 0 auto;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== 相关推荐 ===== */
        .related-posts {
            padding: 48px 0 80px;
        }

        .section-head {
            margin-bottom: 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .section-head h2 {
            font-size: 28px;
            font-weight: 900;
            color: var(--text-primary);
            position: relative;
            display: inline-block;
            padding-bottom: 12px;
        }

        .section-head h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 44px;
            height: 4px;
            border-radius: 4px;
            background: linear-gradient(90deg, var(--brand), var(--quantum));
        }

        .related-card {
            display: flex;
            flex-direction: column;
            background: var(--bg-secondary);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            height: 100%;
            transition: var(--transition);
            color: var(--text-primary);
        }

        .related-card:hover {
            border-color: rgba(0,180,216,.45);
            transform: translateY(-4px);
            box-shadow: var(--shadow);
            color: var(--text-primary);
        }

        .related-card-img {
            aspect-ratio: 4/3;
            overflow: hidden;
            background: var(--bg-tertiary);
        }

        .related-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

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

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

        .related-card-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .related-card-body p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 14px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-date {
            font-size: 12px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .related-empty {
            padding: 48px 0;
            color: var(--text-muted) !important;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #0A0F1C;
            border-top: 1px solid rgba(255,255,255,.05);
            padding: 60px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 44px;
            padding-bottom: 44px;
        }

        .footer-logo {
            font-size: 22px;
            font-weight: 900;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 14px;
            line-height: 1.7;
        }

        .footer-icp {
            font-size: 12px;
            color: var(--text-muted);
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

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

        .footer-col ul a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: var(--transition);
        }

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

        .footer-tip {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 8px;
            line-height: 1.6;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,.05);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-muted);
            font-size: 12px;
        }

        .footer-bottom a:hover {
            color: var(--brand);
        }

        /* ===== 模态框 ===== */
        .modal-backdrop.show {
            opacity: .7;
        }

        .modal-content.glass-modal {
            background: rgba(17,26,43,.94);
            border: 1px solid rgba(255,255,255,.12);
            border-radius: var(--radius-lg);
            box-shadow: 0 16px 60px rgba(0,0,0,.5);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
        }

        .modal-header {
            border-bottom: 1px solid var(--border-light);
            padding: 20px 24px;
        }

        .modal-title {
            font-size: 20px;
            font-weight: 900;
            color: var(--text-primary);
        }

        .modal-body {
            padding: 24px;
        }

        .modal-body .form-label {
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
        }

        .modal-body .form-control,
        .modal-body .form-select {
            background: var(--bg-primary);
            border: 1px solid #24304A;
            color: var(--text-primary);
            border-radius: 10px;
            padding: 10px 14px;
            font-size: 14px;
            transition: var(--transition);
        }

        .modal-body .form-control:focus,
        .modal-body .form-select:focus {
            border-color: var(--brand);
            box-shadow: 0 0 0 3px rgba(0,180,216,.3);
            background: var(--bg-primary);
            color: var(--text-primary);
        }

        .modal-body .form-control::placeholder {
            color: var(--text-muted);
        }

        .modal-body .form-select option {
            background: var(--bg-primary);
            color: var(--text-primary);
        }

        .modal-body .form-check-input {
            margin-top: 2px;
        }

        .modal-body .form-check-input:checked {
            background-color: var(--brand);
            border-color: var(--brand);
        }

        .modal-body .form-check-label {
            color: var(--text-muted);
            font-size: 13px;
        }

        .modal-body .btn-close,
        .modal-header .btn-close {
            width: 40px;
            height: 40px;
            margin: 0;
            padding: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            opacity: .7;
            filter: invert(1);
            border-radius: 10px;
            transition: var(--transition);
        }

        .modal-header .btn-close:hover {
            opacity: 1;
            background: rgba(255,255,255,.08);
        }

        .privacy-note {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 16px;
            text-align: center;
            line-height: 1.6;
        }

        .privacy-link {
            display: block;
            text-align: center;
            font-size: 12px;
            color: var(--brand);
            margin-top: 4px;
        }

        .privacy-link:hover {
            color: var(--brand-light);
        }

        .modal-body p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 12px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991px) {
            .navbar-collapse {
                position: fixed;
                top: 56px;
                left: 0;
                right: 0;
                background: #0B1120;
                padding: 20px;
                z-index: 999;
                max-height: calc(100vh - 56px);
                overflow-y: auto;
                border-bottom: 1px solid var(--border-light);
                box-shadow: 0 20px 40px rgba(0,0,0,.5);
            }

            .navbar-nav {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
                margin-left: 0;
                margin-bottom: 20px;
            }

            .nav-link {
                width: 100%;
                padding: 12px 14px;
                font-size: 15px;
                border-radius: 10px;
            }

            .nav-link.active::after {
                left: 14px;
                right: auto;
                bottom: 6px;
                width: 24px;
            }

            .nav-right {
                width: 100%;
                justify-content: flex-start;
                flex-wrap: wrap;
            }

            .search-box {
                position: static;
                transform: none;
                width: 100%;
                max-width: 260px;
                order: 3;
            }

            .search-box.active {
                transform: none;
            }
        }

        @media (max-width: 768px) {
            .brand-text {
                font-size: 17px;
            }

            .breadcrumb-bar {
                margin-top: 56px;
                padding: 14px 0;
            }

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

            .article-header {
                padding: 44px 0 24px;
            }

            .article-header h1 {
                font-size: 24px;
            }

            .article-meta {
                gap: 14px;
                font-size: 13px;
            }

            .article-content {
                padding: 36px 0 32px;
            }

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

            .article-nav-links {
                padding: 24px 0 48px;
            }

            .related-posts {
                padding: 40px 0 60px;
            }

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

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

            .footer-bottom {
                justify-content: center;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .brand-text {
                font-size: 15px;
                letter-spacing: 0;
            }

            .navbar {
                padding: 6px 0;
            }

            .nav-actions-mobile {
                gap: 0;
            }

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

            .article-header h1 {
                font-size: 22px;
                line-height: 1.5;
            }

            .article-meta {
                flex-direction: column;
                gap: 8px;
            }

            .nav-links-wrap {
                flex-direction: column;
                align-items: stretch;
            }

            .nav-links-wrap .btn {
                width: 100%;
            }

            .btn-primary,
            .btn-outline {
                padding: 10px 18px;
            }
        }

        @media (min-width: 1400px) {
            .container {
                max-width: 1200px;
            }
        }

/* roulang page: category2 */
:root{
  --bg-primary:#0B1120;
  --bg-secondary:#111A2B;
  --bg-tertiary:#131C2E;
  --text-primary:#E8F0F8;
  --text-secondary:#9AA8B9;
  --text-muted:#64748B;
  --primary:#00B4D8;
  --primary-hover:#22D3EE;
  --primary-dark:#0090B0;
  --accent:#00D4AA;
  --gold:#F5B942;
  --border-glass:rgba(255,255,255,.12);
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:10px;
  --shadow-md:0 16px 40px rgba(0,0,0,.35);
  --font-stack:'PingFang SC','Microsoft YaHei','Noto Sans SC',-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-stack);
  background:var(--bg-primary);
  color:var(--text-primary);
  line-height:1.6;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-hover)}
img{max-width:100%;height:auto}
button{font-family:inherit;border:none;background:none;cursor:pointer}
.container{max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto}
section{padding:72px 0}
h1,h2,h3,h4,h5,h6{font-weight:900;color:var(--text-primary);line-height:1.2}
.text-secondary{color:var(--text-secondary)}
.text-muted{color:var(--text-muted)}

/* 预导航条 */
.top-pre-nav{
  height:32px;
  background:#0A0F1C;
  border-bottom:1px solid rgba(255,255,255,.04);
  font-size:12px;
  display:flex;
  align-items:center;
}
.top-pre-nav .container{display:flex;justify-content:space-between;align-items:center}
.top-pre-nav .status-text{
  color:var(--text-secondary);
  display:inline-flex;
  align-items:center;
  gap:6px;
  letter-spacing:.5px;
}
.top-pre-nav .status-dot{
  width:8px;height:8px;background:var(--accent);
  border-radius:50%;display:inline-block;
  box-shadow:0 0 6px rgba(0,212,170,.6);
  animation:pulse 2s infinite;
}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}
.top-pre-nav .fav-link{
  color:var(--text-muted);
  font-size:12px;
  transition:color .2s;
}
.top-pre-nav .fav-link:hover{color:var(--primary)}
.fa-bookmark{font-size:11px;margin-right:2px}

/* 主导航 */
.main-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(11,17,32,.7);
  backdrop-filter:blur(6px);
  border-bottom:1px solid rgba(255,255,255,.04);
}
.main-header.scrolled{
  background:rgba(11,17,32,.72);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--border-glass);
  transition:all .3s ease;
}
.main-header .navbar{
  min-height:56px;
  padding:0;
}
.main-header .navbar-brand{
  display:flex;
  align-items:center;
  padding:0;
  margin-right:32px;
}
.brand-text{
  font-size:19px;
  font-weight:900;
  letter-spacing:1px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  white-space:nowrap;
}
.main-header .navbar-nav{
  display:flex;
  align-items:center;
  gap:4px;
}
.main-header .nav-link{
  font-size:14px;
  font-weight:500;
  color:var(--text-secondary);
  padding:8px 16px !important;
  border-radius:8px;
  position:relative;
  transition:color .2s;
}
.main-header .nav-link:hover{color:var(--text-primary)}
.main-header .nav-link.active{
  color:var(--primary);
}
.main-header .nav-link.active::after{
  content:'';
  position:absolute;
  bottom:2px;
  left:16px;
  right:16px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
}
.nav-right{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
}
.btn-search{
  width:36px;height:36px;
  display:flex;align-items:center;justify-content:center;
  border-radius:10px;
  color:var(--text-secondary);
  font-size:16px;
  transition:all .2s;
}
.btn-search:hover{color:var(--primary)}
.search-box{
  width:0;
  overflow:hidden;
  opacity:0;
  transition:all .3s ease;
}
.search-box.open{
  width:180px;
  opacity:1;
}
.search-box input{
  width:100%;
  height:36px;
  background:var(--bg-primary);
  border:1px solid #24304A;
  border-radius:10px;
  padding:0 14px;
  font-size:13px;
  color:var(--text-primary);
  outline:none;
  transition:border .2s, box-shadow .2s;
}
.search-box input:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(0,180,216,.25);
}
.navbar-toggler{
  position:relative;
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  width:36px;height:36px;
  padding:0;
}
.navbar-toggler span{
  display:block;
  width:18px;height:2px;
  background:var(--text-primary);
  border-radius:2px;
  margin:2px 0;
  transition:all .3s;
}
.navbar-toggler[aria-expanded="true"] span:nth-child(1){
  transform:translateY(6px) rotate(45deg);
}
.navbar-toggler[aria-expanded="true"] span:nth-child(2){opacity:0}
.navbar-toggler[aria-expanded="true"] span:nth-child(3){
  transform:translateY(-6px) rotate(-45deg);
}
@media(max-width:992px){
  .main-header .navbar-collapse{
    background:var(--bg-primary);
    border-radius:0 0 16px 16px;
    padding:16px;
    margin-top:8px;
    border:1px solid rgba(255,255,255,.06);
    box-shadow:var(--shadow-md);
  }
  .main-header .navbar-nav{
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    margin-bottom:12px;
  }
  .main-header .nav-link{
    padding:12px 16px !important;
    border-radius:10px;
  }
  .main-header .nav-link.active{
    background:rgba(0,180,216,.1);
  }
  .main-header .nav-link.active::after{display:none}
  .nav-right{
    width:100%;
    margin-left:0;
    gap:8px;
  }
  .nav-right .btn-search{
    position:static !important;
  }
  .search-box{
    flex:1;
    width:auto;
  }
  .search-box.open{
    width:100%;
  }
  .nav-actions-mobile{
    display:flex;
    align-items:center;
    gap:8px;
    margin-left:auto;
  }
}

/* 按钮 */
.btn{
  border-radius:var(--radius-sm);
  font-weight:500;
  font-size:14px;
  padding:10px 22px;
  transition:all .25s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--accent));
  border:none;
  color:#fff;
  box-shadow:0 4px 20px rgba(0,180,216,.35);
}
.btn-primary:hover{
  background:linear-gradient(135deg,var(--primary-hover),var(--accent));
  box-shadow:0 6px 30px rgba(0,180,216,.5);
  transform:translateY(-1px);
  color:#fff;
}
.btn-primary:active{
  filter:brightness(.9);
  transform:translateY(1px);
}
.btn-primary:focus{
  outline:none;
  box-shadow:0 0 0 3px rgba(0,180,216,.3),0 4px 20px rgba(0,180,216,.35);
}
.btn-ghost{
  background:transparent;
  border:1px solid rgba(255,255,255,.12);
  color:var(--primary);
  padding:10px 22px;
}
.btn-ghost:hover{
  border-color:var(--primary);
  color:var(--primary-hover);
  background:rgba(0,180,216,.06);
}
.btn-ghost:focus{
  outline:none;
  box-shadow:0 0 0 3px rgba(0,180,216,.25);
}
.btn-sm{
  height:36px;
  padding:0 18px;
  font-size:14px;
}
.btn-link-text{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--primary);
  font-size:14px;
  font-weight:500;
  padding:0;
  background:none;
  border:none;
  transition:all .2s;
}
.btn-link-text i{
  font-size:12px;
  transition:transform .2s;
}
.btn-link-text:hover{
  color:var(--primary-hover);
}
.btn-link-text:hover i{
  transform:translateX(4px);
}

/* 分类页Hero */
.category-hero{
  min-height:240px;
  display:flex;
  align-items:center;
  background:linear-gradient(135deg,#0B1120 0%,#1A2D4A 100%),var(--bg-primary);
  position:relative;
  overflow:hidden;
}
.category-hero::before{
  content:'';
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-position:center;
  background-size:cover;
  opacity:.22;
  filter:blur(2px);
}
.category-hero::after{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(rgba(11,17,32,.7) 0%,rgba(11,17,32,.9) 100%);
}
.category-hero .container{
  position:relative;
  z-index:2;
}
.category-hero .hero-badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 14px;
  border-radius:999px;
  background:rgba(0,212,170,.1);
  border:1px solid rgba(0,212,170,.3);
  font-size:12px;
  color:var(--accent);
  margin-bottom:14px;
}
.category-hero .hero-badge i{font-size:10px}
.category-hero h1{
  font-size:40px;
  font-weight:900;
  margin-bottom:12px;
  line-height:1.25;
}
.category-hero .hero-desc{
  font-size:16px;
  color:var(--text-secondary);
  max-width:680px;
  line-height:1.7;
}

/* 内容区块 */
.category-content-section{
  padding:72px 0;
}
.section-label{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--primary);
  margin-bottom:10px;
  letter-spacing:.5px;
}
.section-label::before{
  content:'';
  width:20px;height:2px;
  background:var(--primary);
  border-radius:2px;
}
.section-title{
  font-size:26px;
  font-weight:900;
  margin-bottom:8px;
}
.section-subtitle{
  font-size:15px;
  color:var(--text-secondary);
  margin-bottom:40px;
  max-width:720px;
  line-height:1.7;
}
.cat-content-card{
  background:var(--bg-secondary);
  border:1px solid rgba(255,255,255,.06);
  border-radius:var(--radius-md);
  padding:28px;
  margin-bottom:16px;
  transition:border .25s, transform .25s;
}
.cat-content-card:nth-child(odd){
  transform:translateX(24px);
}
.cat-content-card:hover{
  border-color:rgba(0,180,216,.4);
  transform:translateX(0) translateY(-2px);
}
.cat-content-card .card-top{
  display:flex;
  align-items:flex-start;
  gap:20px;
  flex-wrap:wrap;
}
.cat-content-card .card-icon{
  width:48px;height:48px;
  flex-shrink:0;
  background:rgba(0,180,216,.1);
  border-radius:14px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--primary);
  font-size:20px;
}
.cat-content-card .card-main{
  flex:1;
  min-width:280px;
}
.cat-content-card .card-title{
  font-size:20px;
  font-weight:700;
  margin-bottom:6px;
}
.cat-content-card .card-desc{
  font-size:14.5px;
  color:var(--text-secondary);
  line-height:1.7;
  margin-bottom:12px;
}
.cat-content-card .card-meta{
  display:flex;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-muted);
}
.cat-content-card .card-meta .tag{
  background:rgba(0,180,216,.12);
  color:var(--primary);
  font-size:12px;
  padding:3px 12px;
  border-radius:999px;
}
.cat-content-card .card-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:500;
  color:var(--primary);
  margin-top:6px;
  transition:all .2s;
}
.cat-content-card .card-link i{
  font-size:12px;
  transition:transform .2s;
}
.cat-content-card .card-link:hover{
  color:var(--primary-hover);
}
.cat-content-card .card-link:hover i{
  transform:translateX(4px);
}
@media(max-width:768px){
  .cat-content-card:nth-child(odd){
    transform:translateX(0);
  }
  .category-hero h1{
    font-size:28px;
  }
  .category-hero .hero-desc{
    font-size:15px;
  }
  section,.category-content-section{padding:56px 0}
  .section-title{font-size:22px}
  .cat-content-card{padding:20px}
  .cat-content-card .card-icon{
    width:42px;height:42px;
    font-size:18px;
  }
}

/* FAQ */
.faq-section{
  background:var(--bg-secondary);
  border-radius:20px;
  padding:48px;
}
.faq-item{
  border:1px solid rgba(255,255,255,.06);
  border-radius:14px;
  margin-bottom:10px;
  background:var(--bg-primary);
  overflow:hidden;
  transition:border-color .2s;
}
.faq-item:hover{
  border-color:rgba(0,180,216,.2);
}
.faq-item .faq-question{
  display:flex;
  align-items:center;
  gap:14px;
  padding:16px 20px;
  cursor:pointer;
  font-size:15px;
  font-weight:500;
  color:var(--text-primary);
  transition:color .2s;
}
.faq-item .faq-question:hover{color:var(--primary)}
.faq-question .faq-icon{
  width:32px;height:32px;
  flex-shrink:0;
  background:rgba(0,180,216,.1);
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--primary);
  font-size:13px;
}
.faq-item .faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-item .faq-answer-inner{
  padding:0 20px 18px 66px;
  color:var(--text-secondary);
  font-size:14px;
  line-height:1.75;
  border-left:3px solid var(--primary);
  margin-left:20px;
}
.faq-item.open .faq-answer{
  max-height:400px;
}
.faq-item.open .faq-question{color:var(--primary)}
@media(max-width:768px){
  .faq-section{padding:28px 20px}
  .faq-item .faq-answer-inner{
    padding-left:16px;
    margin-left:20px;
  }
}

/* CTA区块 */
.cta-panel{
  background:var(--bg-secondary);
  border-radius:var(--radius-lg);
  padding:56px;
  position:relative;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.06);
}
.cta-panel::before{
  content:'';
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-position:center;
  background-size:cover;
  opacity:.12;
}
.cta-panel .cta-inner{
  position:relative;
  z-index:2;
  text-align:center;
  max-width:600px;
  margin:0 auto;
}
.cta-panel h2{
  font-size:28px;
  font-weight:900;
  margin-bottom:14px;
}
.cta-panel p{
  color:var(--text-secondary);
  font-size:15px;
  line-height:1.7;
  margin-bottom:26px;
}
.cta-panel .btn{
  min-width:200px;
}
@media(max-width:768px){
  .cta-panel{padding:36px 20px}
  .cta-panel h2{font-size:22px}
}

/* 信任条 */
.trust-strip{
  background:var(--bg-primary);
  border-top:1px solid rgba(255,255,255,.04);
  border-bottom:1px solid rgba(255,255,255,.04);
  padding:14px 0;
}
.trust-strip .trust-list{
  display:flex;
  align-items:center;
  gap:28px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-muted);
}
.trust-strip .trust-list li{
  list-style:none;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.trust-strip .trust-list i{
  color:var(--accent);
  font-size:12px;
}
@media(max-width:768px){
  .trust-strip .trust-list{gap:12px;justify-content:flex-start}
}

/* 数据展示 */
.stats-display{
  background:rgba(255,255,255,.06);
  border:1px solid var(--border-glass);
  backdrop-filter:blur(18px);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-md);
  padding:40px;
  margin-top:56px;
}
.stats-display .stat-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
  text-align:center;
}
.stats-display .stat-num{
  font-size:52px;
  font-weight:900;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  line-height:1.1;
  text-shadow:0 0 30px rgba(0,212,170,.2);
}
.stats-display .stat-label{
  font-size:13px;
  color:var(--text-muted);
  margin-top:6px;
}
@media(max-width:768px){
  .stats-display{padding:24px}
  .stats-display .stat-grid{
    grid-template-columns:repeat(2,1fr);
    gap:24px;
  }
  .stats-display .stat-num{font-size:36px}
}

/* 流程图 */
.step-flow{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  margin-top:40px;
}
.step-card{
  background:var(--bg-secondary);
  border:1px solid rgba(255,255,255,.06);
  border-radius:var(--radius-md);
  padding:28px;
  position:relative;
  transition:all .25s;
}
.step-card:hover{
  border-color:rgba(0,180,216,.4);
  transform:translateY(-4px);
}
.step-card .step-num{
  font-size:13px;
  font-weight:700;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-bottom:14px;
}
.step-card .step-num::before{
  content:'';
  width:28px;height:1px;
  background:var(--primary);
  opacity:.5;
}
.step-card h3{
  font-size:17px;
  font-weight:700;
  margin-bottom:10px;
}
.step-card p{
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.7;
}
@media(max-width:768px){
  .step-flow{grid-template-columns:1fr;gap:14px}
}

/* 页脚 */
.footer{
  background:var(--bg-primary);
  border-top:1px solid rgba(255,255,255,.04);
  padding:60px 0 20px;
  margin-top:80px;
}
.footer .footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.05);
}
.footer .footer-logo{
  font-size:19px;
  font-weight:900;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  margin-bottom:12px;
}
.footer .footer-brand p{
  font-size:13.5px;
  color:var(--text-muted);
  line-height:1.7;
  margin-bottom:14px;
}
.footer-icp{
  font-size:12px;
  color:var(--text-muted);
  opacity:.7;
}
.footer .footer-col h4{
  font-size:15px;
  font-weight:700;
  margin-bottom:16px;
  color:var(--text-primary);
}
.footer .footer-col ul{
  list-style:none;
  padding:0;
  margin:0;
}
.footer .footer-col ul li{
  margin-bottom:10px;
}
.footer .footer-col ul a{
  font-size:14px;
  color:var(--text-secondary);
  transition:color .2s;
}
.footer .footer-col ul a:hover{
  color:var(--primary);
}
.footer-tip{
  font-size:13px;
  color:var(--text-muted);
  line-height:1.6;
  margin-bottom:6px;
  display:flex;
  align-items:center;
  gap:6px;
}
.footer-tip i{font-size:11px;color:var(--accent)}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding-top:20px;
  font-size:12px;
  color:var(--text-muted);
}
.footer-bottom a{
  color:var(--text-muted);
  transition:color .2s;
  font-size:12px;
}
.footer-bottom a:hover{color:var(--primary)}
@media(max-width:992px){
  .footer .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:28px;
  }
  .footer{margin-top:56px}
}
@media(max-width:568px){
  .footer .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{
    flex-direction:column;
    gap:10px;
    text-align:center;
  }
}

/* 弹层 */
.modal-content{
  background:rgba(11,17,32,.85);
  backdrop-filter:blur(18px);
  border:1px solid var(--border-glass);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-md);
}
.modal-header{
  border:none;
  padding:24px 28px 0;
}
.modal-title{
  font-size:20px;
  font-weight:900;
}
.modal-body{
  padding:20px 28px 24px;
}
.modal-close-btn{
  width:40px;height:40px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  color:var(--text-secondary);
  font-size:16px;
  transition:all .2s;
}
.modal-close-btn:hover{
  background:rgba(255,255,255,.1);
  color:var(--text-primary);
}
.form-control{
  background:var(--bg-primary);
  border:1px solid #24304A;
  border-radius:10px;
  color:var(--text-primary);
  padding:10px 14px;
  font-size:14px;
}
.form-control:focus{
  background:var(--bg-primary);
  border-color:var(--primary);
  color:var(--text-primary);
  box-shadow:0 0 0 3px rgba(0,180,216,.25);
}
.modal-body .form-label{
  font-size:13px;
  font-weight:500;
  color:var(--text-secondary);
  margin-bottom:6px;
}
.modal-body .form-text{
  font-size:12px;
  color:var(--text-muted);
  margin-top:12px;
  line-height:1.6;
}
.privacy-note{
  display:flex;
  align-items:flex-start;
  gap:8px;
  font-size:12px;
  color:var(--text-muted);
  margin-top:12px;
}
.privacy-note a{
  color:var(--primary);
  margin-left:4px;
}
.form-check-input{
  width:14px;height:14px;
  margin-top:2px;
  background:var(--bg-primary);
  border-color:#24304A;
}
.form-check-input:checked{
  background:var(--primary);
  border-color:var(--primary);
}
.modal-backdrop.show{
  background:rgba(2,8,22,.7);
  backdrop-filter:blur(4px);
  opacity:1;
}

/* 辅助 */
.mt-40{margin-top:40px}
.mb-16{margin-bottom:16px}
hr.section-divider{
  border:none;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.1) 50%,transparent);
  margin:0;
}