/* roulang page: index */
:root {
  --bg-ink: #0B0F1E;
  --bg-ink-2: #0E1526;
  --bg-glass: rgba(255,255,255,0.06);
  --bg-glass-strong: rgba(255,255,255,0.12);
  --border-line: rgba(255,255,255,0.14);
  --text-body: #E6ECF7;
  --text-muted: #AEB9D0;
  --text-dim: #7A88A3;
  --cyan: #00E8FF;
  --orange: #FF6B32;
  --cyan-glow: 0 0 24px rgba(0,232,255,0.45);
  --orange-glow: 0 0 24px rgba(255,107,50,0.35);
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --space-section: 100px;
  --font-main: "PingFang SC","Microsoft YaHei","Helvetica Neue",system-ui,sans-serif;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-main);
  background: var(--bg-ink);
  color: var(--text-body);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
}
a {
  color: inherit;
  text-decoration: none;
  transition: all .3s ease;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
button, input, select, textarea {
  font-family: inherit;
}
.container {
  max-width: 1200px;
}
@media (min-width:1400px) {
  .container {
    max-width: 1296px;
  }
}
.section-pad {
  padding: var(--space-section) 0;
}
@media (max-width:768px) {
  :root {
    --space-section: 56px;
  }
}
/* Section title */
.section-head {
  margin-bottom: 48px;
  text-align: center;
}
.section-head .sub-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--cyan);
  background: rgba(0,232,255,0.08);
  border: 1px solid rgba(0,232,255,0.25);
  border-radius: 100px;
  padding: 4px 14px;
  margin-bottom: 16px;
}
.section-head h2 {
  font-size: 30px;
  font-weight: 700;
  color: var(--text-body);
  margin-bottom: 12px;
  letter-spacing: .5px;
}
.section-head .head-line {
  width: 32px;
  height: 4px;
  background: var(--cyan);
  border-radius: 0 4px 4px 0;
  margin: 16px auto 0;
  position: relative;
}
.section-head .head-line::after {
  content: "";
  position: absolute;
  right: -6px;
  top: -4px;
  width: 12px;
  height: 12px;
  border-right: 2px solid var(--cyan);
  border-top: 2px solid var(--cyan);
  transform: rotate(45deg);
}
.section-head p {
  color: var(--text-muted);
  font-size: 16px;
  max-width: 640px;
  margin: 12px auto 0;
}
@media (max-width:768px) {
  .section-head h2 {
    font-size: 22px;
  }
  .section-head {
    margin-bottom: 32px;
  }
}
/* ===== Topbar ===== */
.topbar {
  background: #070A14;
  border-bottom: 1px solid #1D263D;
  height: 40px;
  display: flex;
  align-items: center;
}
.topbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.topbar-left {
  font-size: 13px;
  color: #73809B;
  font-weight: 500;
}
.topbar-right {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 13px;
}
.topbar-right a {
  color: #73809B;
  text-decoration: none;
  font-weight: 500;
}
.topbar-right a:hover {
  color: var(--cyan);
}
.topbar-right .btn-topbar {
  background: linear-gradient(135deg, var(--cyan), #00B4D8);
  color: #0B0F1E;
  border: none;
  border-radius: 100px;
  padding: 3px 14px;
  font-size: 12px;
  font-weight: 700;
  transition: all .3s;
}
.topbar-right .btn-topbar:hover {
  box-shadow: var(--cyan-glow);
  transform: translateY(-1px);
  color: #0B0F1E;
}
@media (max-width:768px) {
  .topbar {
    height: 34px;
  }
  .topbar-right a:not(.btn-topbar) {
    display: none;
  }
}
/* ===== Navbar ===== */
.site-nav {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(11,15,30,0.85);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  min-height: 76px;
  transition: box-shadow .3s;
}
.site-nav.scrolled {
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
}
.site-nav .navbar {
  padding: 0;
}
.site-nav .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0;
  font-size: 22px;
  font-weight: 800;
  color: var(--text-body);
  letter-spacing: .5px;
}
.site-nav .brand .brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--cyan), #0077B6);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 800;
  color: #0B0F1E;
  box-shadow: 0 0 18px rgba(0,232,255,0.3);
}
.site-nav .brand .brand-text {
  font-size: 20px;
  font-weight: 800;
  background: linear-gradient(90deg, #fff, rgba(255,255,255,0.85));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.site-nav .nav-link {
  color: rgba(255,255,255,0.8);
  font-size: 16px;
  font-weight: 500;
  padding: 26px 16px;
  margin: 0 2px;
  position: relative;
  transition: color .3s, text-shadow .3s;
}
.site-nav .nav-link:hover {
  color: #fff;
  text-shadow: 0 0 12px rgba(0,232,255,0.5);
}
.site-nav .nav-link.active {
  color: var(--cyan);
}
.site-nav .nav-link.active::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 18px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), transparent);
  border-radius: 2px;
}
.site-nav .btn-nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 24px;
  background: linear-gradient(135deg, var(--cyan), #00B4D8);
  color: #0B0F1E;
  border: none;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 700;
  box-shadow: 0 8px 24px rgba(0,232,255,0.22);
  transition: all .3s;
  margin-left: 20px;
  white-space: nowrap;
}
.site-nav .btn-nav-cta:hover {
  box-shadow: 0 8px 40px rgba(0,232,255,0.4);
  transform: translateY(-1px);
  color: #0B0F1E;
}
.site-nav .navbar-toggler {
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  color: rgba(255,255,255,0.7);
}
.site-nav .navbar-toggler:focus {
  box-shadow: 0 0 0 3px rgba(0,232,255,0.2);
}
@media (max-width:991px) {
  .site-nav {
    min-height: 64px;
  }
  .site-nav .navbar {
    padding: 10px 0;
  }
  .site-nav .navbar-collapse {
    background: rgba(11,15,30,0.95);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    margin-top: 12px;
    max-height: 80vh;
    overflow-y: auto;
  }
  .site-nav .nav-link {
    padding: 12px 8px;
    border-bottom: 1px solid rgba(255,255,255,0.04);
  }
  .site-nav .nav-link.active::after {
    display: none;
  }
  .site-nav .nav-link.active {
    border-left: 3px solid var(--cyan);
    background: rgba(0,232,255,0.06);
    border-radius: 4px;
    padding-left: 14px;
  }
  .site-nav .btn-nav-cta {
    margin-left: 0;
    margin-top: 14px;
    width: 100%;
  }
}
/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background: linear-gradient(130deg, rgba(11,15,30,0.92) 0%, rgba(11,15,30,0.75) 50%, rgba(11,15,30,0.9) 100%),
              url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(-45deg,
    rgba(255,255,255,0.012) 0px,
    rgba(255,255,255,0.012) 1px,
    transparent 1px,
    transparent 18px);
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  width: 500px;
  height: 500px;
  top: -100px;
  left: -100px;
  background: radial-gradient(circle, rgba(0,232,255,0.18) 0%, transparent 70%);
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
  padding: 120px 0 80px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-glass);
  border: 1px solid var(--border-line);
  border-radius: 100px;
  padding: 6px 18px;
  font-size: 13px;
  color: var(--text-muted);
  backdrop-filter: blur(12px);
  margin-bottom: 24px;
}
.hero-badge span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
}
.hero h1 {
  font-size: 56px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: .5px;
  color: #fff;
  max-width: 880px;
  margin-bottom: 20px;
  text-shadow: 0 4px 40px rgba(0,0,0,0.3);
}
.hero h1 .accent {
  background: linear-gradient(90deg, var(--cyan), #00B4D8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 18px;
  color: #B7C1D8;
  max-width: 640px;
  line-height: 1.7;
  margin-bottom: 36px;
}
.hero-btn-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}
.btn-primary-glow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 52px;
  padding: 0 36px;
  background: linear-gradient(135deg, var(--cyan), #00B4D8);
  color: #0B0F1E;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 700;
  box-shadow: 0 8px 30px rgba(0,232,255,0.28);
  transition: all .3s;
  animation: breath-glow 2s ease-in-out infinite;
}
.btn-primary-glow:hover {
  box-shadow: 0 8px 44px rgba(0,232,255,0.45);
  transform: translateY(-2px);
  color: #0B0F1E;
}
@keyframes breath-glow {
  0%,100% { box-shadow: 0 8px 30px rgba(0,232,255,0.28); }
  50% { box-shadow: 0 8px 36px rgba(0,232,255,0.42); }
}
.btn-ghost-light {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 52px;
  padding: 0 36px;
  background: rgba(255,255,255,0.06);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.35);
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  backdrop-filter: blur(10px);
  transition: all .3s;
}
.btn-ghost-light:hover {
  background: rgba(0,232,255,0.10);
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: var(--cyan-glow);
  transform: translateY(-2px);
}
.hero-metrics {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-metric {
  background: var(--bg-glass);
  border: 1px solid var(--border-line);
  border-radius: 12px;
  padding: 18px 28px;
  text-align: center;
  backdrop-filter: blur(12px);
  transition: all .3s;
}
.hero-metric:hover {
  border-color: rgba(0,232,255,0.4);
  box-shadow: var(--cyan-glow);
}
.hero-metric .num {
  font-size: 28px;
  font-weight: 800;
  color: var(--cyan);
  font-family: "Inter", "Roboto", sans-serif;
  letter-spacing: 1px;
}
.hero-metric .label {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
  font-weight: 500;
}
@media (max-width:992px) {
  .hero h1 {
    font-size: 40px;
  }
  .hero-content {
    padding: 80px 0 60px;
  }
}
@media (max-width:768px) {
  .hero {
    min-height: auto;
  }
  .hero h1 {
    font-size: 36px;
  }
  .hero-sub {
    font-size: 16px;
  }
  .hero-metrics {
    gap: 10px;
  }
  .hero-metric {
    padding: 14px 18px;
    flex: 1;
    min-width: 90px;
  }
  .hero-metric .num {
    font-size: 22px;
  }
}
@media (max-width:576px) {
  .hero h1 {
    font-size: 32px;
  }
  .hero-btn-group .btn-primary-glow,
  .hero-btn-group .btn-ghost-light {
    width: 100%;
  }
}
/* ===== Sellpoint ===== */
.sellpoint {
  background: var(--bg-ink);
  position: relative;
  overflow: hidden;
}
.sellpoint::before {
  content: "";
  position: absolute;
  bottom: -200px;
  right: -200px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255,107,50,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.sp-card {
  position: relative;
  background: var(--bg-glass);
  border: 1px solid var(--border-line);
  border-radius: 16px;
  padding: 32px 28px 28px;
  backdrop-filter: blur(20px);
  transition: all .35s;
  height: 100%;
  overflow: hidden;
}
.sp-card::before {
  content: "";
  position: absolute;
  bottom: -60px;
  right: -60px;
  width: 120px;
  height: 120px;
  background: linear-gradient(45deg, transparent, rgba(0,232,255,0.14));
  transform: rotate(45deg);
  transition: all .35s;
  border-radius: 20px;
}
.sp-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0,232,255,0.5);
  box-shadow: var(--cyan-glow);
}
.sp-card::after {
  content: attr(data-index);
  position: absolute;
  top: 16px;
  right: 18px;
  font-size: 13px;
  font-weight: 800;
  font-family: "Roboto", "Inter", sans-serif;
  color: rgba(0,232,255,0.5);
  border: 1px solid rgba(0,232,255,0.3);
  border-radius: 6px;
  padding: 2px 8px;
}
.sp-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: rgba(0,232,255,0.1);
  border: 1px solid rgba(0,232,255,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  position: relative;
}
.sp-card:nth-child(2) .sp-icon {
  margin-top: 28px;
  background: rgba(255,107,50,0.1);
  border-color: rgba(255,107,50,0.25);
}
.sp-card:nth-child(3) .sp-icon {
  border-radius: 50%;
}
.sp-icon svg {
  width: 28px;
  height: 28px;
  color: var(--cyan);
}
.sp-card:nth-child(2) .sp-icon svg {
  color: var(--orange);
}
.sp-card:nth-child(2)::before {
  background: linear-gradient(45deg, transparent, rgba(255,107,50,0.14));
}
.sp-card:nth-child(2)::after {
  color: rgba(255,107,50,0.5);
  border-color: rgba(255,107,50,0.3);
}
.sp-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-body);
  margin-bottom: 10px;
}
.sp-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}
/* ===== Demo ===== */
.demo {
  background: var(--bg-ink-2);
  border-top: 1px solid rgba(255,255,255,0.03);
  border-bottom: 1px solid rgba(255,255,255,0.03);
}
.demo-block {
  margin-bottom: 72px;
}
.demo-block:last-child {
  margin-bottom: 0;
}
.demo-media {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--bg-glass-strong);
}
.demo-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s;
}
.demo-block:hover .demo-media img {
  transform: scale(1.02);
}
.demo-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.35) 0%, transparent 100%);
}
.demo-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.4);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  cursor: pointer;
  transition: all .3s;
}
.demo-play::before {
  content: "";
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 2px solid var(--cyan);
  opacity: 0.6;
  animation: pulse-ring 1.5s ease-out infinite;
}
.demo-play:hover {
  background: rgba(0,232,255,0.25);
  border-color: var(--cyan);
}
.demo-play svg {
  width: 20px;
  height: 20px;
  color: #fff;
  margin-left: 2px;
}
@keyframes pulse-ring {
  0% { transform: scale(0.9); opacity: 0.7; }
  100% { transform: scale(1.3); opacity: 0; }
}
.demo-info {
  padding: 24px 0;
}
.demo-info h3 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-body);
  margin-bottom: 14px;
  line-height: 1.4;
}
.demo-info p {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 20px;
}
.demo-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.demo-list li {
  position: relative;
  padding-left: 24px;
  font-size: 15px;
  color: var(--text-body);
  line-height: 1.8;
  margin-bottom: 10px;
}
.demo-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px rgba(0,232,255,0.6);
}
@media (max-width:767px) {
  .demo-block {
    margin-bottom: 48px;
  }
  .demo-info h3 {
    font-size: 20px;
  }
}
/* ===== Evidence ===== */
.evidence {
  background: var(--bg-ink);
  position: relative;
}
.evidence-stats {
  background: linear-gradient(135deg, rgba(0,232,255,0.06), rgba(255,107,50,0.04));
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px;
  padding: 40px 30px;
  margin-bottom: 48px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 24px;
  position: relative;
  overflow: hidden;
}
.evidence-stats::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(45deg,
    rgba(255,255,255,0.02) 0px,
    rgba(255,255,255,0.02) 1px,
    transparent 1px,
    transparent 12px);
}
.stat-item {
  text-align: center;
  flex: 1;
  min-width: 140px;
  position: relative;
}
.stat-item .num {
  font-size: 40px;
  font-weight: 800;
  color: var(--cyan);
  font-family: "Inter", "Roboto", sans-serif;
  line-height: 1.2;
}
.stat-item .label {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 6px;
  font-weight: 500;
}
@media (max-width:768px) {
  .evidence-stats {
    padding: 28px 20px;
    gap: 16px;
  }
  .stat-item .num {
    font-size: 30px;
  }
}
.case-card {
  border-radius: 16px;
  overflow: hidden;
  background: var(--bg-glass);
  border: 1px solid var(--border-line);
  height: 100%;
  transition: all .35s;
}
.case-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0,232,255,0.4);
  box-shadow: var(--cyan-glow);
}
.case-media {
  height: 220px;
  position: relative;
  overflow: hidden;
}
.case-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s;
}
.case-card:hover .case-media img {
  transform: scale(1.03);
}
.case-glass {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 16px;
  border-radius: 12px;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid rgba(255,255,255,0.18);
  padding: 14px 16px;
}
.case-tag {
  display: inline-block;
  font-size: 12px;
  color: var(--cyan);
  background: rgba(0,232,255,0.15);
  border: 1px solid rgba(0,232,255,0.3);
  border-radius: 4px;
  padding: 2px 8px;
  font-weight: 600;
  margin-bottom: 6px;
}
.case-glass h4 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin: 0;
  line-height: 1.4;
}
.case-glass p {
  font-size: 13px;
  color: rgba(255,255,255,0.85);
  margin: 4px 0 0;
  line-height: 1.5;
}
/* ===== Pricing ===== */
.pricing {
  background: var(--bg-ink-2);
  border-top: 1px solid rgba(255,255,255,0.03);
}
.price-card {
  position: relative;
  background: var(--bg-glass);
  border: 1px solid var(--border-line);
  border-radius: 16px;
  padding: 32px 28px;
  backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: all .35s;
}
.price-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0,232,255,0.4);
  box-shadow: var(--cyan-glow);
}
.price-card.featured {
  margin-top: -12px;
  transform: scale(1.02);
  border-color: rgba(255,107,50,0.35);
  background: linear-gradient(145deg, rgba(255,107,50,0.08), rgba(255,255,255,0.08));
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.price-card.featured:hover {
  transform: scale(1.02) translateY(-4px);
  border-color: rgba(255,107,50,0.5);
  box-shadow: 0 20px 60px rgba(255,107,50,0.2);
}
.price-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--orange), #FF8C42);
  color: #0B0F1E;
  font-size: 13px;
  font-weight: 700;
  padding: 4px 18px;
  border-radius: 100px;
  white-space: nowrap;
}
.price-plan {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-body);
  margin-bottom: 6px;
}
.price-name {
  font-size: 24px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
}
.price-amount {
  font-size: 48px;
  font-weight: 800;
  color: var(--cyan);
  font-family: "Inter", sans-serif;
  line-height: 1.1;
  margin-bottom: 24px;
}
.price-card.featured .price-amount {
  color: var(--orange);
}
.price-amount span {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-muted);
}
.price-list {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  flex: 1;
}
.price-list li {
  position: relative;
  padding-left: 28px;
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.8;
  margin-bottom: 10px;
}
.price-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 16px;
  height: 16px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2300E8FF'%3E%3Cpath d='M13.78 4.22a.75.75 0 010 1.06l-7.07 7.07a.75.75 0 01-1.06 0L2.22 8.91a.75.75 0 111.06-1.06l2.57 2.57 6.87-6.87a.75.75 0 011.06 0z'/%3E%3C/svg%3E") center/contain no-repeat;
}
.price-card.featured .price-list li::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23FF6B32'%3E%3Cpath d='M13.78 4.22a.75.75 0 010 1.06l-7.07 7.07a.75.75 0 01-1.06 0L2.22 8.91a.75.75 0 111.06-1.06l2.57 2.57 6.87-6.87a.75.75 0 011.06 0z'/%3E%3C/svg%3E");
}
.btn-price {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  transition: all .3s;
  margin-top: auto;
}
.btn-price-outline {
  border: 1px solid rgba(255,255,255,0.3);
  color: var(--text-body);
  background: transparent;
}
.btn-price-outline:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: var(--cyan-glow);
}
.btn-price-solid {
  background: linear-gradient(135deg, var(--orange), #FF8C42);
  color: #0B0F1E;
  border: none;
  box-shadow: var(--orange-glow);
}
.btn-price-solid:hover {
  box-shadow: 0 0 40px rgba(255,107,50,0.5);
  transform: translateY(-1px);
  color: #0B0F1E;
}
.btn-price-cyan {
  border: 1px solid var(--cyan);
  color: var(--cyan);
  background: rgba(0,232,255,0.08);
}
.btn-price-cyan:hover {
  background: rgba(0,232,255,0.18);
  box-shadow: var(--cyan-glow);
}
@media (max-width:991px) {
  .price-card.featured {
    margin-top: 0;
    transform: none;
  }
}
@media (max-width:576px) {
  .price-amount {
    font-size: 36px;
  }
}
/* ===== FAQ ===== */
.faq-section {
  background: var(--bg-ink);
}
.faq-wrap {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  border-radius: 14px;
  margin-bottom: 12px;
  border: 1px solid rgba(255,255,255,0.1);
  background: rgba(255,255,255,0.03);
  overflow: hidden;
  transition: border-color .3s, background .3s;
}
.faq-item:has(.accordion-button:not(.collapsed)) {
  border-color: rgba(0,232,255,0.35);
  background: rgba(0,232,255,0.06);
}
.faq-item .accordion-button {
  background: transparent;
  color: var(--text-body);
  font-size: 16px;
  font-weight: 600;
  padding: 18px 22px;
  box-shadow: none;
  border: none;
  border-left: 3px solid transparent;
  transition: all .3s;
}
.faq-item .accordion-button:not(.collapsed) {
  color: var(--cyan);
  border-left-color: var(--cyan);
  background: rgba(0,232,255,0.04);
  box-shadow: none;
}
.faq-item .accordion-button:focus {
  box-shadow: none;
  outline: 2px solid rgba(0,232,255,0.4);
  outline-offset: 2px;
}
.faq-item .accordion-button .q-mark {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: rgba(0,232,255,0.12);
  color: var(--cyan);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 800;
  margin-right: 12px;
  flex-shrink: 0;
}
.faq-item .accordion-button:not(.collapsed) .q-mark {
  background: var(--cyan);
  color: #0B0F1E;
}
.faq-item .accordion-body {
  padding: 0 22px 18px 62px;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.8;
}
.faq-item .accordion-button::after {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2300E8FF'%3E%3Cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 01.708 0L8 10.293l5.646-5.647a.5.5 0 01.708.708l-6 6a.5.5 0 01-.708 0l-6-6a.5.5 0 010-.708z'/%3E%3C/svg%3E");
  transition: transform .3s;
}
.faq-item .accordion-button:not(.collapsed)::after {
  transform: rotate(45deg);
}
/* ===== News / CMS ===== */
.news-section {
  background: var(--bg-ink-2);
  border-top: 1px solid rgba(255,255,255,0.03);
}
.news-list {
  max-width: 860px;
  margin: 0 auto;
}
.news-card {
  display: flex;
  background: var(--bg-glass);
  border: 1px solid var(--border-line);
  border-radius: 16px;
  padding: 20px;
  margin-bottom: 16px;
  transition: all .35s;
  gap: 20px;
}
.news-card:hover {
  border-color: rgba(0,232,255,0.4);
  transform: translateX(4px);
  box-shadow: 0 0 24px rgba(0,232,255,0.1);
}
.news-thumb {
  width: 100px;
  height: 100px;
  border-radius: 10px;
  flex-shrink: 0;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(0,232,255,0.15), rgba(255,255,255,0.05));
  display: flex;
  align-items: center;
  justify-content: center;
}
.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.news-thumb svg {
  width: 32px;
  height: 32px;
  color: rgba(0,232,255,0.5);
}
.news-info {
  flex: 1;
  min-width: 0;
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 6px;
}
.news-badge {
  display: inline-block;
  background: rgba(0,232,255,0.12);
  color: var(--cyan);
  font-size: 12px;
  font-weight: 600;
  border-radius: 4px;
  padding: 2px 10px;
  border: 1px solid rgba(0,232,255,0.25);
}
.news-time {
  font-size: 12px;
  color: var(--text-dim);
  font-family: "Inter", "Roboto", sans-serif;
}
.news-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-body);
  margin: 0 0 4px;
  line-height: 1.4;
}
.news-title a {
  color: inherit;
}
.news-title a:hover {
  color: var(--cyan);
}
.news-summary {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0 0 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-more {
  font-size: 13px;
  color: var(--cyan);
  font-weight: 600;
  transition: all .3s;
}
.news-more:hover {
  letter-spacing: 1px;
  text-shadow: var(--cyan-glow);
}
.empty-news {
  text-align: center;
  background: var(--bg-glass);
  border: 1px solid var(--border-line);
  border-radius: 16px;
  padding: 48px 24px;
  backdrop-filter: blur(10px);
}
.empty-news .empty-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(0,232,255,0.1);
  border: 1px solid rgba(0,232,255,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}
.empty-news h3 {
  font-size: 18px;
  color: var(--text-body);
  margin-bottom: 6px;
}
.empty-news p {
  font-size: 14px;
  color: var(--text-muted);
  margin: 0;
}
@media (max-width:768px) {
  .news-card {
    flex-direction: column;
    gap: 12px;
    padding: 16px;
  }
  .news-thumb {
    width: 100%;
    height: 140px;
  }
}
/* ===== CTA ===== */
.cta-section {
  position: relative;
  background: linear-gradient(135deg, rgba(11,15,30,0.94), rgba(14,21,38,0.9)),
              url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  padding: 100px 0;
  border-top: 1px solid rgba(255,255,255,0.05);
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(-45deg,
    rgba(0,232,255,0.02) 0px,
    rgba(0,232,255,0.02) 2px,
    transparent 2px,
    transparent 20px);
  pointer-events: none;
}
.cta-section::after {
  content: "";
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0,232,255,0.12), transparent 70%);
  pointer-events: none;
}
.cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
}
.cta-content h2 {
  font-size: 38px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 1px;
}
.cta-content p {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 32px;
  line-height: 1.7;
}
.cta-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.cta-tel {
  font-size: 18px;
  font-weight: 700;
  color: var(--cyan);
  display: block;
  margin-top: 20px;
}
@media (max-width:768px) {
  .cta-section {
    padding: 60px 0;
  }
  .cta-content h2 {
    font-size: 26px;
  }
  .cta-btns .btn-primary-glow,
  .cta-btns .btn-ghost-light {
    width: 100%;
  }
}
/* ===== Footer ===== */
.site-footer {
  background: #080C16;
  border-top: 1px solid rgba(255,255,255,0.04);
  padding-top: 70px;
}
.footer-deco {
  height: 2px;
  max-width: 300px;
  margin: 0 auto 50px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  position: relative;
}
.footer-deco::after {
  content: "";
  position: absolute;
  top: 6px;
  left: 30px;
  right: 30px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,107,50,0.5), transparent);
}
.footer-row {
  padding-bottom: 40px;
}
.footer-brand {
  margin-bottom: 20px;
}
.footer-brand .brand {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-brand .brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--cyan), #0077B6);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 800;
  color: #0B0F1E;
}
.footer-desc {
  font-size: 14px;
  color: #7A88A3;
  line-height: 1.8;
  margin-top: 14px;
  max-width: 320px;
}
.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}
.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.04);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .3s;
}
.footer-social a:hover {
  border-color: var(--cyan);
  background: rgba(0,232,255,0.1);
}
.footer-social svg {
  width: 16px;
  height: 16px;
  color: var(--text-muted);
}
.footer-social a:hover svg {
  color: var(--cyan);
}
.footer-col-title {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: .5px;
}
.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer-links li {
  margin-bottom: 10px;
}
.footer-links a {
  font-size: 14px;
  color: #7A88A3;
  transition: all .3s;
  display: inline-block;
}
.footer-links a:hover {
  color: var(--cyan);
  transform: translateX(3px);
}
.footer-contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 14px;
  color: #7A88A3;
}
.footer-contact-list li {
  margin-bottom: 10px;
  line-height: 1.7;
}
.footer-contact-list .f-ico {
  color: var(--cyan);
  margin-right: 8px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: #55647F;
}
.footer-bottom a {
  color: #55647F;
}
.footer-bottom a:hover {
  color: var(--cyan);
}
@media (max-width:768px) {
  .site-footer {
    padding-top: 50px;
  }
  .footer-col-title {
    margin-bottom: 14px;
    margin-top: 24px;
  }
}
/* ===== Floating CTA ===== */
.float-cta {
  position: fixed;
  right: 32px;
  bottom: 32px;
  z-index: 1030;
  height: 52px;
  padding: 0 28px;
  background: linear-gradient(135deg, var(--cyan), #00B4D8);
  color: #0B0F1E;
  border: none;
  border-radius: 100px;
  font-size: 16px;
  font-weight: 700;
  box-shadow: 0 8px 30px rgba(0,232,255,0.35);
  transition: all .3s;
  display: flex;
  align-items: center;
  gap: 8px;
}
.float-cta:hover {
  box-shadow: 0 8px 44px rgba(0,232,255,0.5);
  transform: translateY(-2px);
  color: #0B0F1E;
}
.back-top-btn {
  position: fixed;
  right: 32px;
  bottom: 96px;
  z-index: 1030;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-glass-strong);
  border: 1px solid var(--border-line);
  backdrop-filter: blur(8px);
  color: var(--text-body);
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all .3s;
  transform: translateY(10px);
}
.back-top-btn.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-top-btn:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: var(--cyan-glow);
}
@media (max-width:576px) {
  .float-cta {
    right: 16px;
    bottom: 16px;
    height: 48px;
    padding: 0 22px;
  }
  .back-top-btn {
    right: 16px;
    bottom: 80px;
  }
}
/* focus-visible global */
a:focus-visible,
button:focus-visible,
input:focus-visible,
.accordion-button:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}
/* bootstrap overrides */
.btn,
.form-control,
.accordion-button {
  box-shadow: none !important;
}

/* roulang page: category1 */
:root {
  --bg-ink: #0B0F1E;
  --bg-ink-2: #0E1526;
  --bg-glass: rgba(255,255,255,0.06);
  --bg-glass-strong: rgba(255,255,255,0.12);
  --border-line: rgba(255,255,255,0.14);
  --text-body: #E6ECF7;
  --text-muted: #AEB9D0;
  --cyan: #00E8FF;
  --orange: #FF6B32;
  --cyan-glow: 0 0 24px rgba(0,232,255,0.45);
  --orange-glow: 0 0 24px rgba(255,107,50,0.35);
  --radius-card: 16px;
  --radius-btn: 8px;
  --shadow-card: 0 8px 30px rgba(0,0,0,0.3);
  --font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background: var(--bg-ink);
  color: var(--text-body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  margin: 0;
  padding: 0;
}

a {
  color: var(--cyan);
  text-decoration: none;
  transition: color .25s ease;
}

a:hover {
  color: #6AF2FF;
}

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

button, input, select, textarea {
  font-family: inherit;
}

.container {
  max-width: 1200px;
}

/* 顶部信息条 */
.topbar {
  background: #070A14;
  border-bottom: 1px solid #1D263D;
  height: 40px;
  display: flex;
  align-items: center;
  font-size: 13px;
  color: #73809B;
}

.topbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.topbar-links {
  display: flex;
  align-items: center;
  gap: 20px;
}

.topbar-links a {
  color: #73809B;
  font-size: 13px;
  transition: color .25s;
}

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

.topbar-cta {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--cyan) !important;
  font-weight: 600;
}

/* 主导航 */
.site-nav {
  background: rgba(11,15,30,0.85);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  position: sticky;
  top: 0;
  z-index: 1050;
  height: 76px;
  display: flex;
  align-items: center;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--cyan), #0E94A8);
  color: #071022;
  font-size: 20px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 16px rgba(0,232,255,0.35);
  flex-shrink: 0;
}

.brand-text {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 1px;
  white-space: nowrap;
}

.site-nav .navbar {
  padding: 0;
}

.navbar-nav {
  gap: 4px;
}

.site-nav .nav-link {
  color: rgba(255,255,255,0.8);
  font-size: 16px;
  font-weight: 500;
  padding: 10px 16px;
  border-bottom: 2px solid transparent;
  transition: all .25s ease;
  white-space: nowrap;
}

.site-nav .nav-link:hover {
  color: #fff;
  text-shadow: 0 0 12px rgba(0,232,255,0.5);
}

.site-nav .nav-link.active {
  color: var(--cyan);
  border-bottom: 2px solid var(--cyan);
  background: linear-gradient(to top, rgba(0,232,255,0.08), transparent);
}

.btn-nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 28px;
  border-radius: 50px;
  background: linear-gradient(135deg, var(--cyan), #00B8D4);
  color: #0B0F1E !important;
  font-weight: 700;
  font-size: 15px;
  box-shadow: 0 8px 30px rgba(0,232,255,0.28);
  transition: all .3s ease;
  margin-left: 16px;
  animation: breathe 3s ease-in-out infinite;
}

.btn-nav-cta:hover {
  box-shadow: 0 8px 44px rgba(0,232,255,0.45);
  transform: translateY(-1px);
  color: #071022 !important;
}

@keyframes breathe {
  0%, 100% { box-shadow: 0 8px 30px rgba(0,232,255,0.28); }
  50% { box-shadow: 0 8px 44px rgba(0,232,255,0.5); }
}

.navbar-toggler {
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  padding: 8px 10px;
  border-radius: 8px;
  line-height: 1;
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 3px rgba(0,232,255,0.25);
  outline: none;
}

/* Hero */
.page-hero {
  position: relative;
  min-height: 420px;
  display: flex;
  align-items: center;
  background: linear-gradient(100deg, rgba(11,15,30,0.92), rgba(11,15,30,0.72)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  overflow: hidden;
  padding: 80px 0;
}

.page-hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: repeating-linear-gradient(45deg, rgba(255,255,255,0.025) 0 2px, transparent 2px 8px);
  pointer-events: none;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -60px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,232,255,0.18), transparent 70%);
  pointer-events: none;
}

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

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

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

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

.breadcrumb .sep {
  color: #566480;
}

.page-hero h1 {
  font-size: 48px;
  font-weight: 800;
  color: #fff;
  margin: 0 0 16px;
  letter-spacing: 2px;
}

.page-hero .hero-sub {
  font-size: 18px;
  color: #B7C1D8;
  max-width: 640px;
  line-height: 1.7;
  margin-bottom: 0;
}

/* 板块标题 */
.section-title {
  font-size: 30px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
  position: relative;
  letter-spacing: 0.5px;
}

.section-title-line {
  width: 64px;
  height: 4px;
  background: linear-gradient(90deg, var(--cyan), transparent);
  border-radius: 0 4px 4px 0;
  margin-bottom: 24px;
  position: relative;
}

.section-title-line::after {
  content: '';
  position: absolute;
  right: -3px;
  top: -2px;
  width: 8px;
  height: 8px;
  border-top: 2px solid var(--cyan);
  border-right: 2px solid var(--cyan);
  transform: rotate(45deg);
}

.section-sub {
  color: var(--text-muted);
  font-size: 16px;
  max-width: 700px;
  margin-bottom: 40px;
}

/* 分类说明区 */
.venue-intro {
  background: var(--bg-ink);
  padding: 100px 0;
}

.venue-intro-alt {
  background: var(--bg-ink-2);
  border-top: 1px solid rgba(255,255,255,0.03);
  border-bottom: 1px solid rgba(255,255,255,0.03);
}

.intro-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-card);
  padding: 36px 36px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-card), inset 0 1px rgba(255,255,255,0.08);
  height: 100%;
  transition: transform .3s ease, border-color .3s ease;
}

.intro-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0,232,255,0.5);
}

.check-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.check-list li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 12px;
  color: var(--text-body);
  line-height: 1.6;
}

.check-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: var(--cyan-glow);
}

/* 服务卡片 */
.service-cards {
  padding: 100px 0;
  background: var(--bg-ink-2);
}

.service-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-card), inset 0 1px rgba(255,255,255,0.06);
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0,232,255,0.5);
  box-shadow: 0 12px 40px rgba(0,0,0,0.4), 0 0 24px rgba(0,232,255,0.1);
}

.service-card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  transition: transform .4s ease;
}

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

.service-card-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
  position: relative;
}

.service-card-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}

.service-card-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
  flex: 1;
}

.service-card-body a {
  font-size: 13px;
  color: var(--cyan);
  font-weight: 600;
}

.card-num {
  position: absolute;
  top: 16px;
  right: 20px;
  font-size: 14px;
  font-weight: 700;
  font-family: 'Courier New', monospace;
  color: var(--cyan);
  border: 1px solid rgba(0,232,255,0.4);
  border-radius: 6px;
  padding: 2px 8px;
  background: rgba(0,232,255,0.06);
}

/* 数字统计 */
.stats-section {
  padding: 80px 0;
  background: var(--bg-ink);
  position: relative;
  overflow: hidden;
}

.stats-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: repeating-linear-gradient(-45deg, rgba(255,255,255,0.02) 0 6px, transparent 6px 16px);
  pointer-events: none;
}

.stats-row {
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-card);
  background: rgba(255,255,255,0.03);
  padding: 48px 40px;
  backdrop-filter: blur(16px);
}

.stat-item {
  text-align: center;
  padding: 20px 12px;
}

.stat-num {
  font-size: 42px;
  font-weight: 800;
  color: var(--cyan);
  font-family: 'Courier New', 'PingFang SC', monospace;
  line-height: 1.2;
  text-shadow: var(--cyan-glow);
}

.stat-label {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 8px;
}

/* 流程 */
.process-section {
  padding: 100px 0;
  background: var(--bg-ink-2);
  border-top: 1px solid rgba(255,255,255,0.03);
  border-bottom: 1px solid rgba(255,255,255,0.03);
}

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

.process-step {
  background: var(--bg-glass);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-card);
  padding: 32px 24px;
  text-align: center;
  position: relative;
  transition: transform .3s ease, border-color .3s ease;
}

.process-step:hover {
  transform: translateY(-4px);
  border-color: rgba(0,232,255,0.4);
}

.process-step .step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(0,232,255,0.2), transparent);
  border: 1px solid rgba(0,232,255,0.4);
  color: var(--cyan);
  font-size: 18px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-family: 'Courier New', monospace;
}

.process-step h4 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.process-step p {
  font-size: 13px;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.6;
}

/* 关联引导 */
.link-guide {
  padding: 100px 0;
  background: var(--bg-ink);
}

.link-guide-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-card);
  padding: 36px;
  transition: transform .3s ease, border-color .3s ease;
  height: 100%;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-card);
}

.link-guide-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0,232,255,0.5);
}

.link-guide-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.link-guide-card p {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 20px;
  line-height: 1.7;
}

.link-guide-card .btn-guide {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 44px;
  padding: 0 24px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  transition: all .3s;
}

.btn-guide-cyan {
  background: linear-gradient(135deg, var(--cyan), #00B8D4);
  color: #0B0F1E;
  box-shadow: 0 4px 20px rgba(0,232,255,0.25);
}

.btn-guide-cyan:hover {
  box-shadow: 0 4px 32px rgba(0,232,255,0.4);
  color: #0B0F1E;
  transform: translateY(-1px);
}

.btn-guide-outline {
  border: 1px solid var(--border-line);
  color: var(--text-body);
  background: rgba(255,255,255,0.02);
}

.btn-guide-outline:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0,232,255,0.06);
}

/* FAQ */
.faq-section {
  padding: 100px 0;
  background: var(--bg-ink-2);
  border-top: 1px solid rgba(255,255,255,0.03);
  border-bottom: 1px solid rgba(255,255,255,0.03);
}

.faq-wrap {
  max-width: 800px;
  margin: 0 auto;
}

.faq-wrap .accordion-item {
  background: var(--bg-glass);
  border: 1px solid var(--border-line);
  border-radius: 14px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color .3s, background .3s;
}

.faq-wrap .accordion-item:has(.accordion-button:not(.collapsed)) {
  border-color: rgba(0,232,255,0.3);
  background: rgba(0,232,255,0.06);
}

.faq-wrap .accordion-button {
  background: transparent;
  color: var(--text-body);
  font-size: 16px;
  font-weight: 600;
  padding: 18px 22px;
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: none;
  outline: none;
}

.faq-wrap .accordion-button::after {
  background-image: none;
  content: '+';
  font-size: 24px;
  font-weight: 300;
  color: var(--cyan);
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .3s;
}

.faq-wrap .accordion-button:not(.collapsed)::after {
  transform: rotate(45deg);
}

.faq-wrap .accordion-button:focus {
  box-shadow: 0 0 0 3px rgba(0,232,255,0.2);
  outline: none;
}

.faq-wrap .accordion-body {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.8;
  padding: 0 22px 20px 56px;
}

.faq-q-icon {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: rgba(0,232,255,0.12);
  color: var(--cyan);
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* CTA */
.cta-section {
  background: linear-gradient(135deg, rgba(11,15,30,0.9), rgba(14,21,38,0.85)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: repeating-linear-gradient(45deg, rgba(255,255,255,0.02) 0 3px, transparent 3px 12px);
  transform: translateX(0);
}

.cta-section .container {
  position: relative;
  z-index: 2;
}

.cta-section h2 {
  font-size: 32px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
}

.cta-section p {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 30px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.cta-btn-group {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-light-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 50px;
  padding: 0 36px;
  border-radius: 50px;
  background: linear-gradient(135deg, var(--cyan), #00B8D4);
  color: #0B0F1E;
  font-weight: 700;
  font-size: 15px;
  box-shadow: 0 8px 30px rgba(0,232,255,0.3);
  transition: all .3s;
}

.btn-light-cta:hover {
  box-shadow: 0 8px 44px rgba(0,232,255,0.45);
  color: #071022;
  transform: translateY(-2px);
}

.btn-outline-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 50px;
  padding: 0 36px;
  border-radius: 50px;
  border: 1px solid rgba(255,255,255,0.3);
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  background: rgba(255,255,255,0.04);
  transition: all .3s;
}

.btn-outline-cta:hover {
  border-color: var(--cyan);
  background: rgba(0,232,255,0.1);
  color: var(--cyan);
}

/* 页脚 */
.site-footer {
  background: #080C16;
  border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-deco {
  height: 60px;
  background: repeating-linear-gradient(-45deg, rgba(0,232,255,0.4) 0 2px, transparent 2px 12px), repeating-linear-gradient(45deg, rgba(255,107,50,0.3) 0 1px, transparent 1px 10px);
  opacity: 0.2;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.footer-row {
  padding: 64px 0 40px;
}

.footer-brand .brand {
  margin-bottom: 16px;
}

.footer-brand .brand-mark {
  width: 36px;
  height: 36px;
  font-size: 18px;
}

.footer-brand .brand {
  font-size: 20px;
  font-weight: 800;
  color: #fff;
}

.footer-desc {
  font-size: 14px;
  color: #7A88A3;
  line-height: 1.8;
  margin-bottom: 20px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #7A88A3;
  transition: all .3s;
}

.footer-social a:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0,232,255,0.06);
  transform: translateY(-2px);
}

.footer-social svg {
  width: 18px;
  height: 18px;
}

.footer-col-title {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  position: relative;
  padding-bottom: 8px;
}

.footer-col-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 28px;
  height: 2px;
  background: var(--cyan);
  border-radius: 2px;
}

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

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

.footer-links a {
  color: #7A88A3;
  font-size: 14px;
  transition: all .25s;
  display: inline-block;
}

.footer-links a:hover {
  color: var(--cyan);
  transform: translateX(3px);
}

.footer-links .footer-info {
  color: #7A88A3;
  font-size: 14px;
  line-height: 1.8;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.05);
  padding: 20px 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: #566480;
  margin: 0;
}

.footer-bottom a {
  color: #566480;
  margin: 0 8px;
}

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

/* 浮动CTA */
.float-cta {
  position: fixed;
  bottom: 32px;
  right: 24px;
  z-index: 1030;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 52px;
  padding: 0 30px;
  border-radius: 50px;
  background: linear-gradient(135deg, var(--cyan), #00B8D4);
  color: #0B0F1E !important;
  font-size: 15px;
  font-weight: 700;
  box-shadow: 0 8px 40px rgba(0,232,255,0.4);
  transition: all .3s;
  animation: floatBreathe 2.5s ease-in-out infinite;
}

.float-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 56px rgba(0,232,255,0.55);
  color: #071022 !important;
}

@keyframes floatBreathe {
  0%, 100% { box-shadow: 0 8px 40px rgba(0,232,255,0.4); }
  50% { box-shadow: 0 8px 56px rgba(0,232,255,0.6); }
}

/* 通用按钮 */
.btn-primary-custom {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 46px;
  padding: 0 32px;
  border-radius: var(--radius-btn);
  background: linear-gradient(135deg, var(--cyan), #00B8D4);
  color: #0B0F1E;
  font-weight: 600;
  box-shadow: 0 4px 24px rgba(0,232,255,0.25);
  transition: all .3s;
}

.btn-primary-custom:hover {
  box-shadow: 0 4px 36px rgba(0,232,255,0.4);
  color: #071022;
  transform: translateY(-1px);
}

/* 可访问性 */
:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* 响应式 */
@media (min-width: 1400px) {
  .container {
    max-width: 1296px;
  }
  .page-hero h1 {
    font-size: 56px;
  }
}

@media (max-width: 1199.98px) {
  .process-steps {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 991.98px) {
  .site-nav {
    height: auto;
    padding: 12px 0;
  }

  .navbar-collapse {
    background: rgba(11,15,30,0.97);
    border-radius: 16px;
    padding: 16px;
    margin-top: 12px;
    border: 1px solid rgba(255,255,255,0.08);
  }

  .site-nav .nav-link {
    padding: 12px 16px;
    border-bottom: none;
    border-left: 2px solid transparent;
  }

  .site-nav .nav-link.active {
    border-bottom: none;
    border-left: 2px solid var(--cyan);
    background: rgba(0,232,255,0.06);
  }

  .btn-nav-cta {
    margin-left: 0;
    margin-top: 8px;
    width: 100%;
    border-radius: 10px;
  }

  .page-hero {
    min-height: 320px;
    padding: 60px 0;
  }

  .page-hero h1 {
    font-size: 40px;
  }

  .section-title {
    font-size: 26px;
  }

  .venue-intro, .service-cards, .process-section, .link-guide, .faq-section {
    padding: 64px 0;
  }
}

@media (max-width: 767.98px) {
  .topbar {
    height: 34px;
  }

  .topbar .topbar-text {
    display: block;
    font-size: 12px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .topbar-links .topbar-telephone,
  .topbar-links .topbar-email {
    display: none;
  }

  .topbar-links a.topbar-mobile-cta {
    display: inline-block;
  }

  .page-hero h1 {
    font-size: 32px;
  }

  .page-hero .hero-sub {
    font-size: 16px;
  }

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

  .stats-row {
    padding: 32px 16px;
  }

  .stat-num {
    font-size: 32px;
  }

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

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

  .cta-btn-group {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-btn-group .btn-light-cta,
  .cta-btn-group .btn-outline-cta {
    width: 100%;
  }

  .footer-row {
    padding: 44px 0 24px;
  }
}

@media (max-width: 575.98px) {
  .brand-text {
    font-size: 18px;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
    font-size: 16px;
  }

  .float-cta {
    bottom: 20px;
    right: 16px;
    height: 48px;
    padding: 0 22px;
    font-size: 14px;
  }
}

@media (min-width: 576px) {
  .topbar-mobile-cta {
    display: none;
  }
}

@media (max-width: 575.98px) {
  .topbar-mobile-cta {
    display: block;
  }
  .topbar-links {
    display: none;
  }
}

/* 移动端菜单 */
@media (max-width: 991.98px) {
  .navbar-collapse {
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    background: rgba(9,12,22,0.98);
    border-radius: 0;
    padding: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
  }
}

/* roulang page: article */
/* ============ 设计变量 ============ */
:root {
    --bg-ink: #0B0F1E;
    --bg-ink-2: #0E1526;
    --bg-glass: rgba(255, 255, 255, 0.06);
    --bg-glass-strong: rgba(255, 255, 255, 0.12);
    --border-line: rgba(255, 255, 255, 0.14);
    --text-body: #E6ECF7;
    --text-muted: #AEB9D0;
    --cyan: #00E8FF;
    --orange: #FF6B32;
    --cyan-glow: 0 0 24px rgba(0, 232, 255, 0.45);
    --orange-glow: 0 0 24px rgba(255, 107, 50, 0.35);
    --radius-card: 16px;
    --radius-btn: 8px;
    --radius-input: 12px;
    --space-section: 100px;
    --space-section-mobile: 56px;
}

/* ============ 基础 Reset ============ */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", system-ui, sans-serif;
    background: var(--bg-ink);
    color: var(--text-body);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: var(--cyan);
    text-decoration: none;
    transition: color 0.25s ease;
}

a:hover {
    color: #6cf2ff;
}

button {
    font-family: inherit;
}

.container {
    max-width: 1200px;
}

:focus-visible {
    outline: 2px solid var(--cyan);
    outline-offset: 3px;
}

/* ============ 顶部信息条 ============ */
.topbar {
    background: #070A14;
    border-bottom: 1px solid #1D263D;
    height: 40px;
    font-size: 13px;
    color: #73809B;
    display: flex;
    align-items: center;
}

.topbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.topbar a {
    color: #8B99B4;
    font-size: 13px;
    transition: color 0.2s;
}

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

.topbar-right {
    display: flex;
    align-items: center;
    gap: 22px;
}

.topbar-cta {
    background: rgba(0, 232, 255, 0.12);
    border: 1px solid rgba(0, 232, 255, 0.3);
    color: var(--cyan) !important;
    padding: 2px 14px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 12px;
    line-height: 22px;
}

.topbar-cta:hover {
    background: rgba(0, 232, 255, 0.22);
    box-shadow: var(--cyan-glow);
}

.topbar-tel,
.topbar-mail {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.topbar-tel svg,
.topbar-mail svg {
    width: 14px;
    height: 14px;
    opacity: 0.7;
}

/* ============ 主导航 ============ */
.site-nav {
    position: sticky;
    top: 0;
    z-index: 1020;
    background: rgba(11, 15, 30, 0.85);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    min-height: 76px;
}

.site-nav .navbar {
    padding: 12px 0;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 800;
    color: #fff;
    letter-spacing: 0.5px;
}

.brand:hover {
    color: #fff;
}

.brand-mark {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(0, 232, 255, 0.25), rgba(255, 107, 50, 0.2));
    border: 1px solid rgba(0, 232, 255, 0.5);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 800;
    color: var(--cyan);
    box-shadow: 0 0 16px rgba(0, 232, 255, 0.2);
}

.brand-text {
    background: linear-gradient(90deg, #fff 40%, var(--cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.site-nav .navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.8);
    font-size: 16px;
    font-weight: 500;
    padding: 10px 16px;
    border-radius: 8px;
    position: relative;
    transition: all 0.25s ease;
}

.site-nav .navbar-nav .nav-link:hover {
    color: #fff;
    text-shadow: 0 0 12px rgba(0, 232, 255, 0.6);
}

.site-nav .navbar-nav .nav-link.active {
    color: #fff;
}

.site-nav .navbar-nav .nav-link.active::after {
    content: "";
    position: absolute;
    left: 16px;
    right: 16px;
    bottom: 2px;
    height: 2px;
    background: linear-gradient(90deg, var(--cyan), transparent);
    border-radius: 2px;
    box-shadow: var(--cyan-glow);
}

.btn-nav-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 44px;
    padding: 0 24px;
    border-radius: 30px;
    background: linear-gradient(135deg, var(--cyan), #00A6D6);
    color: #04121A;
    font-weight: 700;
    font-size: 15px;
    margin-left: 16px;
    box-shadow: 0 8px 30px rgba(0, 232, 255, 0.28);
    border: none;
    transition: all 0.3s ease;
}

.btn-nav-cta:hover {
    color: #04121A;
    transform: translateY(-2px);
    box-shadow: 0 8px 44px rgba(0, 232, 255, 0.45);
}

.navbar-toggler {
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    border-radius: 10px;
    padding: 8px 10px;
}

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

/* ============ 文章头图区 ============ */
.article-hero {
    position: relative;
    background: linear-gradient(rgba(0, 0, 0, 0.72), rgba(11, 15, 30, 0.9)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    padding: 64px 0 56px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.breadcrumb-nav {
    font-size: 13px;
    color: #8B99B4;
    margin-bottom: 18px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px;
}

.breadcrumb-nav a {
    color: #8B99B4;
    transition: color 0.2s;
}

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

.breadcrumb-nav .sep {
    margin: 0 4px;
    color: #4A5670;
}

.breadcrumb-nav .current {
    color: var(--cyan);
    max-width: 320px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.article-hero h1 {
    font-size: 34px;
    font-weight: 800;
    line-height: 1.4;
    color: #fff;
    margin: 0 0 18px;
    letter-spacing: 0.5px;
    max-width: 900px;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px 18px;
    font-size: 14px;
    color: #8B99B4;
}

.meta-cat {
    background: rgba(0, 232, 255, 0.14);
    border: 1px solid rgba(0, 232, 255, 0.3);
    color: var(--cyan);
    padding: 2px 12px;
    border-radius: 30px;
    font-size: 13px;
    font-weight: 600;
}

.meta-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.meta-tag svg {
    width: 14px;
    height: 14px;
    opacity: 0.6;
}

/* ============ 正文区 ============ */
.article-main {
    padding: 56px 0 48px;
    background: var(--bg-ink);
}

.article-container {
    max-width: 860px;
    margin: 0 auto;
    padding: 0 20px;
}

.article-body {
    font-size: 16px;
    line-height: 1.8;
    color: #C9D3E6;
}

.article-body p {
    margin: 0 0 24px;
    font-size: 16px;
    line-height: 1.8;
}

.article-body h1,
.article-body h2,
.article-body h3,
.article-body h4,
.article-body h5 {
    color: #fff;
    font-weight: 700;
    line-height: 1.4;
    margin: 36px 0 18px;
}

.article-body h2 {
    font-size: 26px;
    border-left: 3px solid var(--cyan);
    padding-left: 14px;
}

.article-body h3 {
    font-size: 21px;
    color: #E6ECF7;
}

.article-body h4 {
    font-size: 18px;
    color: var(--cyan);
}

.article-body img {
    border-radius: 14px;
    margin: 28px 0;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
}

.article-body a {
    color: var(--cyan);
    border-bottom: 1px solid rgba(0, 232, 255, 0.4);
}

.article-body a:hover {
    color: #6cf2ff;
}

.article-body blockquote {
    background: var(--bg-glass);
    border-left: 4px solid var(--cyan);
    border-radius: 0 12px 12px 0;
    padding: 20px 24px;
    margin: 28px 0;
    color: #AEB9D0;
    font-style: italic;
    position: relative;
}

.article-body ul,
.article-body ol {
    padding-left: 24px;
    margin: 0 0 24px;
}

.article-body ul li,
.article-body ol li {
    margin-bottom: 10px;
}

.article-body ul li::marker {
    color: var(--cyan);
}

.article-body ol li::marker {
    color: var(--cyan);
    font-weight: 700;
}

.article-body table {
    width: 100%;
    margin: 28px 0;
    border-collapse: collapse;
    font-size: 15px;
    overflow: hidden;
    border-radius: 12px;
}

.article-body table th,
.article-body table td {
    padding: 14px 16px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    text-align: left;
}

.article-body table th {
    background: rgba(0, 232, 255, 0.1);
    color: #fff;
    font-weight: 700;
}

.article-body table tr:nth-child(even) {
    background: rgba(255, 255, 255, 0.04);
}

.article-body hr {
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin: 36px 0;
}

.article-body strong {
    color: #fff;
}

/* 空状态 */
.article-empty {
    text-align: center;
    padding: 60px 20px;
    background: var(--bg-glass);
    border-radius: var(--radius-card);
    border: 1px solid var(--border-line);
    max-width: 600px;
    margin: 20px auto;
}

.article-empty h2 {
    font-size: 26px;
    color: #fff;
    margin-bottom: 14px;
}

.article-empty p {
    color: var(--text-muted);
    margin-bottom: 24px;
}

/* ============ 标签区 ============ */
.article-tags {
    margin: 40px 0 0;
    padding-top: 28px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.article-tags .tag {
    display: inline-block;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: #AEB9D0;
    font-size: 13px;
    padding: 5px 16px;
    border-radius: 30px;
    transition: all 0.25s;
}

.article-tags .tag:hover {
    border-color: var(--cyan);
    color: var(--cyan);
    background: rgba(0, 232, 255, 0.08);
    box-shadow: var(--cyan-glow);
}

/* ============ 上下篇导航 ============ */
.article-prev-next {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin: 36px 0 0;
}

.pn-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-line);
    border-radius: var(--radius-card);
    padding: 22px 24px;
    display: block;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    min-height: 92px;
}

.pn-card:hover {
    background: rgba(0, 232, 255, 0.07);
    border-color: rgba(0, 232, 255, 0.5);
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.pn-card.next {
    text-align: right;
}

.pn-label {
    display: block;
    font-size: 12px;
    color: #7A88A3;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
    font-weight: 600;
}

.pn-label::before,
.pn-card.next .pn-label::after {
    content: "";
    display: inline-block;
    width: 24px;
    height: 1px;
    background: var(--cyan);
    vertical-align: middle;
    margin-right: 8px;
    opacity: 0.6;
}

.pn-card.next .pn-label::after {
    margin-right: 0;
    margin-left: 8px;
}

.pn-title {
    font-size: 16px;
    font-weight: 600;
    color: #E6ECF7;
    line-height: 1.5;
    display: block;
    transition: color 0.2s;
}

.pn-card:hover .pn-title {
    color: var(--cyan);
}

/* ============ 相关推荐 ============ */
.article-related {
    background: var(--bg-ink-2);
    padding: 64px 0 72px;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.section-title-wrap {
    margin-bottom: 36px;
}

.section-title-wrap h2 {
    font-size: 28px;
    font-weight: 700;
    color: #fff;
    margin: 0 0 12px;
}

.section-line {
    width: 40px;
    height: 4px;
    background: linear-gradient(90deg, var(--cyan), transparent);
    border-radius: 2px;
    position: relative;
}

.section-line::after {
    content: "";
    position: absolute;
    right: -10px;
    top: 50%;
    width: 8px;
    height: 8px;
    border-right: 2px solid var(--cyan);
    border-bottom: 2px solid var(--cyan);
    transform: translateY(-50%) rotate(-45deg);
}

.related-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-line);
    border-radius: var(--radius-card);
    overflow: hidden;
    transition: all 0.35s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.related-card:hover {
    transform: translateY(-4px);
    border-color: rgba(0, 232, 255, 0.5);
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.25), var(--cyan-glow);
}

.related-card .card-img {
    height: 180px;
    overflow: hidden;
    position: relative;
}

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

.related-card:hover .card-img img {
    transform: scale(1.05);
}

.related-card .card-body {
    padding: 20px 20px 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.related-card .card-cat {
    display: inline-block;
    background: rgba(0, 232, 255, 0.14);
    border: 1px solid rgba(0, 232, 255, 0.25);
    color: var(--cyan);
    font-size: 12px;
    font-weight: 600;
    padding: 2px 10px;
    border-radius: 30px;
    margin-bottom: 12px;
    align-self: flex-start;
}

.related-card .card-title {
    font-size: 16px;
    font-weight: 700;
    color: #E6ECF7;
    line-height: 1.5;
    margin: 0 0 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-card .card-summary {
    font-size: 13px;
    color: #8B99B4;
    margin-bottom: 14px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

.related-card .card-more {
    font-size: 13px;
    color: var(--cyan);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
    transition: gap 0.2s;
}

.related-card .card-more svg {
    width: 14px;
    height: 14px;
}

.related-card:hover .card-more {
    gap: 10px;
    color: #6cf2ff;
}

/* ============ CTA 区 ============ */
.article-cta {
    background: linear-gradient(135deg, rgba(0, 232, 255, 0.08), rgba(255, 107, 50, 0.08)), var(--bg-ink);
    padding: 48px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    position: relative;
    overflow: hidden;
}

.article-cta::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    background: repeating-linear-gradient(-45deg, rgba(255, 255, 255, 0.02) 0 2px, transparent 2px 14px);
    pointer-events: none;
}

.article-cta .cta-box {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
    padding: 0 20px;
}

.article-cta h3 {
    font-size: 24px;
    font-weight: 700;
    color: #fff;
    margin: 0 0 12px;
}

.article-cta p {
    color: #8B99B4;
    font-size: 15px;
    margin-bottom: 24px;
}

.btn-brand-cyan {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 50px;
    padding: 0 36px;
    border-radius: 30px;
    background: linear-gradient(135deg, var(--cyan), #00A6D6);
    color: #04121A;
    font-size: 15px;
    font-weight: 700;
    border: none;
    box-shadow: 0 8px 30px rgba(0, 232, 255, 0.3);
    transition: all 0.3s ease;
}

.btn-brand-cyan:hover {
    color: #04121A;
    transform: translateY(-2px);
    box-shadow: 0 10px 44px rgba(0, 232, 255, 0.5);
}

/* ============ 页脚 ============ */
.site-footer {
    background: #080C16;
    padding-top: 0;
    position: relative;
}

.footer-deco {
    height: 4px;
    background: linear-gradient(90deg, transparent, var(--cyan) 30%, rgba(255, 107, 50, 0.8) 70%, transparent);
    opacity: 0.6;
}

.site-footer .container {
    padding-top: 56px;
    padding-bottom: 0;
}

.footer-row {
    padding-bottom: 32px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.footer-brand .brand {
    font-size: 20px;
    color: #fff;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
}

.footer-brand .brand-mark {
    width: 34px;
    height: 34px;
    font-size: 15px;
    border-radius: 10px;
}

.footer-desc {
    color: #7A88A3;
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 20px;
    max-width: 340px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #8B99B4;
    transition: all 0.25s;
}

.footer-social a:hover {
    background: rgba(0, 232, 255, 0.12);
    border-color: var(--cyan);
    color: var(--cyan);
    box-shadow: var(--cyan-glow);
    transform: translateY(-2px);
}

.footer-social svg {
    width: 18px;
    height: 18px;
}

.footer-col-title {
    font-size: 14px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 18px;
    letter-spacing: 0.5px;
}

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

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

.footer-links a {
    color: #7A88A3;
    font-size: 14px;
    transition: all 0.2s;
    display: inline-block;
}

.footer-links a:hover {
    color: var(--cyan);
    transform: translateX(3px);
}

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

.footer-contact li {
    color: #7A88A3;
    font-size: 14px;
    margin-bottom: 10px;
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.footer-contact li svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    margin-top: 3px;
    opacity: 0.5;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 18px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    color: #5A6780;
}

.footer-bottom a {
    color: #5A6780;
    transition: color 0.2s;
}

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

/* ============ 返回顶部 ============ */
.back-top {
    position: fixed;
    right: 28px;
    bottom: 32px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--bg-glass-strong);
    border: 1px solid var(--border-line);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--text-body);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1030;
    opacity: 0;
    visibility: hidden;
    transform: translateY(16px);
    transition: all 0.3s ease;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.back-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-top:hover {
    border-color: var(--cyan);
    color: var(--cyan);
    box-shadow: var(--cyan-glow);
}

.back-top svg {
    width: 18px;
    height: 18px;
}

/* ============ 响应式 ============ */
@media (min-width: 1400px) {
    .container {
        max-width: 1296px;
    }
    .article-hero h1 {
        font-size: 40px;
    }
}

@media (max-width: 991.98px) {
    .topbar-mail,
    .topbar-tel {
        display: none !important;
    }
    .site-nav .navbar-collapse {
        background: rgba(11, 15, 30, 0.97);
        padding: 20px;
        border-radius: 0 0 16px 16px;
        border: 1px solid rgba(255, 255, 255, 0.08);
        margin-top: 10px;
    }
    .site-nav .navbar-nav .nav-link {
        padding: 12px 14px;
        font-size: 15px;
        border-radius: 8px;
    }
    .site-nav .navbar-nav .nav-link.active::after {
        left: 14px;
        right: 14px;
    }
    .btn-nav-cta {
        margin-left: 0;
        margin-top: 10px;
        width: 100%;
    }
    .article-hero h1 {
        font-size: 28px;
    }
}

@media (max-width: 767.98px) {
    .topbar {
        height: 34px;
    }
    .topbar-left {
        font-size: 12px;
    }
    .topbar-cta {
        font-size: 12px;
        padding: 1px 10px;
    }
    .topbar-right > span,
    .topbar-right .topbar-mail {
        display: none;
    }
    .article-hero {
        padding: 44px 0 36px;
    }
    .article-hero h1 {
        font-size: 22px;
        line-height: 1.5;
    }
    .article-container {
        padding: 0 16px;
    }
    .article-prev-next {
        grid-template-columns: 1fr;
    }
    .pn-card.next {
        text-align: left;
    }
    .pn-card.next .pn-label::after {
        display: none;
    }
    .article-related {
        padding: 48px 0 56px;
    }
    .related-card .card-img {
        height: 160px;
    }
    .article-cta h3 {
        font-size: 20px;
    }
    .site-footer .container {
        padding-top: 36px;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    .back-top {
        right: 16px;
        bottom: 20px;
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 575.98px) {
    body {
        font-size: 15px;
    }
    .brand-text {
        font-size: 19px;
    }
    .brand-mark {
        width: 34px;
        height: 34px;
        border-radius: 10px;
    }
    .article-body {
        font-size: 15px;
    }
    .article-body p {
        font-size: 15px;
    }
    .article-body h2 {
        font-size: 22px;
    }
    .article-body h3 {
        font-size: 18px;
    }
    .article-body table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
    .section-title-wrap h2 {
        font-size: 22px;
    }
    .article-cta {
        padding: 36px 0;
    }
}

/* roulang page: category2 */
:root {
            --bg-ink: #0B0F1E;
            --bg-ink-2: #0E1526;
            --bg-glass: rgba(255, 255, 255, 0.06);
            --bg-glass-strong: rgba(255, 255, 255, 0.12);
            --border-line: rgba(255, 255, 255, 0.14);
            --text-body: #E6ECF7;
            --text-muted: #AEB9D0;
            --text-dim: #7A88A3;
            --cyan: #00E8FF;
            --orange: #FF6B32;
            --cyan-glow: 0 0 24px rgba(0, 232, 255, 0.45);
            --orange-glow: 0 0 24px rgba(255, 107, 50, 0.35);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --font-main: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", system-ui, 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-ink);
            color: var(--text-body);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: all .3s ease;
        }
        a:hover {
            color: var(--cyan);
        }
        ul {
            list-style: none;
        }
        .container {
            max-width: 1200px;
        }
        @media(min-width:1400px) {
            .container {
                max-width: 1296px;
            }
        }

        /* Topbar */
        .topbar {
            background: #070A14;
            border-bottom: 1px solid #1D263D;
            height: 40px;
            font-size: 13px;
            color: #73809B;
        }
        .topbar-wrap {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 100%;
        }
        .topbar-right {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .topbar a {
            color: #73809B;
        }
        .topbar a:hover {
            color: var(--cyan);
        }
        .topbar-cta {
            color: var(--cyan) !important;
            font-weight: 600;
        }
        @media(max-width:576px) {
            .topbar {
                height: 34px;
                font-size: 12px;
            }
            .topbar-right {
                gap: 8px;
            }
            .topbar-right a:not(.topbar-cta) {
                display: none;
            }
        }

        /* Navbar */
        .site-nav {
            position: sticky;
            top: 0;
            z-index: 1020;
            background: rgba(11, 15, 30, 0.85);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .site-nav .navbar {
            min-height: 76px;
            padding: 0;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            min-height: 44px;
        }
        .brand-mark {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--cyan), #0099CC);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            color: #0B0F1E;
            box-shadow: 0 0 20px rgba(0, 232, 255, 0.35);
            flex-shrink: 0;
        }
        .brand-text {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 8px 10px;
            border-radius: 8px;
            color: #fff;
            background: transparent;
        }
        .navbar-toggler:focus {
            box-shadow: none;
            border-color: var(--cyan);
        }
        .nav-link {
            color: rgba(255, 255, 255, 0.8) !important;
            font-size: 16px;
            font-weight: 500;
            padding: 12px 16px !important;
            position: relative;
            letter-spacing: 0.3px;
        }
        .nav-link:hover {
            color: #fff !important;
            text-shadow: 0 0 12px rgba(0, 232, 255, 0.6);
        }
        .nav-link.active {
            color: #fff !important;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: linear-gradient(90deg, var(--cyan), transparent);
            border-radius: 2px;
        }
        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 24px;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--cyan), #00B8D9);
            color: #0B0F1E;
            font-weight: 700;
            font-size: 15px;
            box-shadow: 0 8px 30px rgba(0, 232, 255, 0.28);
            margin-left: 16px;
            border: none;
            transition: all .3s ease;
            white-space: nowrap;
        }
        .btn-nav-cta:hover {
            box-shadow: 0 8px 44px rgba(0, 232, 255, 0.45);
            transform: translateY(-1px);
            color: #0B0F1E;
        }
        @media(max-width:991.98px) {
            .navbar-collapse {
                background: rgba(11, 15, 30, 0.98);
                border-radius: 0 0 16px 16px;
                padding: 16px 20px 24px;
                border: 1px solid rgba(255, 255, 255, 0.08);
                border-top: none;
                margin-top: 10px;
            }
            .navbar-nav {
                width: 100%;
                margin-bottom: 12px;
            }
            .nav-link {
                padding: 12px 0 !important;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-link.active {
                color: var(--cyan) !important;
            }
            .btn-nav-cta {
                margin-left: 0;
                width: 100%;
            }
        }

        /* Hero */
        .page-hero {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            background-size: cover;
            background-position: center;
            padding: 80px 0;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 15, 30, 0.92) 20%, rgba(14, 21, 38, 0.75) 60%, rgba(11, 15, 30, 0.85) 100%);
        }
        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: repeating-linear-gradient(45deg, transparent, transparent 14px, rgba(255, 255, 255, 0.02) 14px, rgba(255, 255, 255, 0.02) 16px);
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb-custom {
            display: flex;
            gap: 8px;
            align-items: center;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .breadcrumb-custom a {
            color: var(--text-muted);
        }
        .breadcrumb-custom a:hover {
            color: var(--cyan);
        }
        .breadcrumb-custom .sep {
            opacity: 0.5;
        }
        .breadcrumb-custom .current {
            color: var(--cyan);
        }
        .page-hero h1 {
            font-size: 48px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 1px;
            line-height: 1.2;
            margin-bottom: 16px;
            text-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
        }
        .page-hero .lead-text {
            font-size: 18px;
            color: #B7C1D8;
            max-width: 640px;
            line-height: 1.7;
            margin-bottom: 32px;
        }
        .hero-btns {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-cyan-glow {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 50px;
            padding: 0 32px;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--cyan), #00B8D9);
            color: #0B0F1E;
            font-weight: 700;
            font-size: 16px;
            box-shadow: 0 8px 30px rgba(0, 232, 255, 0.28);
            border: none;
            transition: all .3s ease;
        }
        .btn-cyan-glow:hover {
            box-shadow: 0 8px 44px rgba(0, 232, 255, 0.5);
            transform: translateY(-2px);
            color: #0B0F1E;
        }
        .btn-glass-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 50px;
            padding: 0 32px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            font-weight: 600;
            font-size: 16px;
            transition: all .3s ease;
            backdrop-filter: blur(10px);
        }
        .btn-glass-outline:hover {
            background: rgba(0, 232, 255, 0.10);
            border-color: var(--cyan);
            color: var(--cyan);
        }
        @media(max-width:768px) {
            .page-hero {
                min-height: 340px;
                padding: 60px 0;
            }
            .page-hero h1 {
                font-size: 34px;
            }
            .page-hero .lead-text {
                font-size: 16px;
            }
            .hero-btns .btn-cyan-glow,
            .hero-btns .btn-glass-outline {
                width: 100%;
            }
        }

        /* Sections */
        .section {
            padding: 100px 0;
            position: relative;
        }
        .section-alt {
            background: var(--bg-ink-2);
        }
        .section-head {
            text-align: center;
            margin-bottom: 56px;
            position: relative;
        }
        .section-head h2 {
            font-size: 30px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
            line-height: 1.35;
        }
        .section-head::after {
            content: '';
            display: block;
            width: 40px;
            height: 4px;
            background: linear-gradient(90deg, var(--cyan), var(--orange));
            border-radius: 2px;
            margin: 0 auto;
            clip-path: polygon(0 0, calc(100% - 6px) 0, 100% 100%, 0 100%);
        }
        .section-head .sub-title {
            color: var(--text-muted);
            font-size: 16px;
            margin-top: 12px;
            max-width: 680px;
            margin-left: auto;
            margin-right: auto;
        }
        @media(max-width:768px) {
            .section {
                padding: 56px 0;
            }
            .section-head {
                margin-bottom: 36px;
            }
            .section-head h2 {
                font-size: 22px;
            }
        }

        /* Overview */
        .overview-img-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-line);
            height: 100%;
            min-height: 360px;
            background: var(--bg-ink-2);
        }
        .overview-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .overview-img-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(11, 15, 30, 0.7) 100%);
        }
        .overview-glass {
            position: absolute;
            bottom: 16px;
            left: 16px;
            right: 16px;
            padding: 16px 20px;
            background: rgba(255, 255, 255, 0.10);
            border-radius: 12px;
            backdrop-filter: blur(14px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            z-index: 2;
        }
        .overview-glass .tag {
            color: var(--cyan);
            font-size: 12px;
            letter-spacing: 2px;
            font-weight: 700;
        }
        .overview-glass .title {
            color: #fff;
            font-weight: 700;
            font-size: 18px;
            margin-top: 2px;
        }
        .overview-content .lead {
            color: var(--text-muted);
            font-size: 16px;
            margin-bottom: 20px;
            line-height: 1.8;
        }
        .check-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            color: var(--text-body);
            font-size: 15px;
            line-height: 1.6;
            border-bottom: 1px dashed rgba(255, 255, 255, 0.06);
        }
        .check-list li:last-child {
            border-bottom: none;
        }
        .check-list .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--cyan);
            box-shadow: 0 0 12px rgba(0, 232, 255, 0.6);
            flex-shrink: 0;
            margin-top: 8px;
        }

        /* Type cards */
        .type-card {
            border-radius: var(--radius-lg);
            background: var(--bg-glass);
            border: 1px solid var(--border-line);
            padding: 32px 24px 28px;
            position: relative;
            height: 100%;
            transition: all .3s ease;
            backdrop-filter: blur(14px);
            overflow: hidden;
        }
        .type-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 232, 255, 0.5);
            box-shadow: var(--cyan-glow);
        }
        .type-card .card-num {
            position: absolute;
            top: 16px;
            right: 20px;
            font-size: 28px;
            font-weight: 800;
            font-family: 'Roboto', monospace;
            color: transparent;
            -webkit-text-stroke: 1px var(--cyan);
            opacity: 0.35;
            transition: all .3s ease;
        }
        .type-card:hover .card-num {
            opacity: 0.8;
            -webkit-text-stroke-color: var(--orange);
        }
        .type-card .icon-box {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: rgba(0, 232, 255, 0.10);
            border: 1px solid rgba(0, 232, 255, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            color: var(--cyan);
        }
        .type-card:nth-child(2) .icon-box {
            background: rgba(255, 107, 50, 0.10);
            border-color: rgba(255, 107, 50, 0.3);
            color: var(--orange);
        }
        .type-card:nth-child(3) .icon-box {
            background: rgba(0, 232, 255, 0.06);
            border-color: rgba(0, 232, 255, 0.3);
            color: var(--cyan);
        }
        .type-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .type-card p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 0;
        }
        .type-card::after {
            content: '';
            position: absolute;
            right: -30px;
            bottom: -30px;
            width: 80px;
            height: 80px;
            background: linear-gradient(45deg, transparent, var(--cyan));
            opacity: 0.06;
            border-radius: 50%;
            transition: all .4s ease;
        }
        .type-card:hover::after {
            opacity: 0.15;
            transform: scale(1.2);
        }

        /* Process */
        .process-wrap {
            position: relative;
        }
        .process-steps {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .process-step {
            flex: 1;
            min-width: 160px;
            max-width: 220px;
            text-align: center;
            padding: 28px 16px 24px;
            background: var(--bg-glass);
            border: 1px solid var(--border-line);
            border-radius: var(--radius-lg);
            position: relative;
            transition: all .3s ease;
            backdrop-filter: blur(14px);
        }
        .process-step:hover {
            border-color: rgba(0, 232, 255, 0.4);
            transform: translateY(-3px);
        }
        .process-step .step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--cyan), #0099CC);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            color: #0B0F1E;
            margin: 0 auto 14px;
            box-shadow: 0 0 20px rgba(0, 232, 255, 0.3);
        }
        .process-step:nth-child(2) .step-num {
            background: linear-gradient(135deg, var(--orange), #FF8A5C);
            box-shadow: 0 0 20px rgba(255, 107, 50, 0.3);
        }
        .process-step:nth-child(4) .step-num {
            background: linear-gradient(135deg, var(--orange), #FF8A5C);
            box-shadow: 0 0 20px rgba(255, 107, 50, 0.3);
        }
        .process-step h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .process-step p {
            color: var(--text-muted);
            font-size: 13px;
            line-height: 1.6;
        }
        @media(max-width:768px) {
            .process-steps {
                flex-direction: column;
                align-items: center;
            }
            .process-step {
                max-width: 100%;
                width: 100%;
            }
        }

        /* Evidence */
        .stats-bar {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-line);
            border-radius: var(--radius-lg);
            padding: 36px 20px;
            display: flex;
            justify-content: space-around;
            gap: 16px;
            position: relative;
            overflow: hidden;
            margin-bottom: 56px;
            flex-wrap: wrap;
        }
        .stats-bar::before {
            content: '';
            position: absolute;
            inset: 0;
            background: repeating-linear-gradient(45deg, transparent, transparent 12px, rgba(255, 255, 255, 0.015) 12px, rgba(255, 255, 255, 0.015) 14px);
            pointer-events: none;
        }
        .stat-item {
            text-align: center;
            flex: 1;
            min-width: 140px;
            position: relative;
            z-index: 1;
        }
        .stat-num {
            font-size: 42px;
            font-weight: 800;
            color: var(--cyan);
            font-family: 'Roboto', 'PingFang SC', sans-serif;
            line-height: 1.2;
            letter-spacing: 1px;
        }
        .stat-plus {
            color: var(--orange);
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .case-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-line);
            background: var(--bg-ink-2);
            height: 100%;
            transition: all .3s ease;
            display: flex;
            flex-direction: column;
        }
        .case-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 232, 255, 0.5);
            box-shadow: var(--cyan-glow);
        }
        .case-img-wrap {
            position: relative;
            overflow: hidden;
            height: 220px;
        }
        .case-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .case-card:hover .case-img-wrap img {
            transform: scale(1.03);
        }
        .case-img-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(11, 15, 30, 0.75) 100%);
        }
        .case-glass {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 18px 20px;
            z-index: 2;
        }
        .case-glass .badge-cyan {
            display: inline-block;
            background: rgba(0, 232, 255, 0.15);
            border: 1px solid rgba(0, 232, 255, 0.4);
            color: var(--cyan);
            font-size: 12px;
            padding: 3px 12px;
            border-radius: 999px;
            margin-bottom: 6px;
        }
        .case-glass .case-title {
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            line-height: 1.4;
        }
        .case-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .case-body p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.65;
            margin-bottom: 12px;
        }
        .case-link {
            color: var(--cyan);
            font-size: 13px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .case-link:hover {
            gap: 8px;
        }

        /* Related */
        .related-card {
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            background: var(--bg-glass);
            border: 1px solid var(--border-line);
            height: 100%;
            transition: all .3s ease;
            position: relative;
            overflow: hidden;
            backdrop-filter: blur(14px);
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 232, 255, 0.5);
            box-shadow: var(--cyan-glow);
        }
        .related-card .icon-circle {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(0, 232, 255, 0.1);
            border: 1px solid rgba(0, 232, 255, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--cyan);
            margin-bottom: 16px;
        }
        .related-card:nth-child(2) .icon-circle {
            background: rgba(255, 107, 50, 0.1);
            border-color: rgba(255, 107, 50, 0.3);
            color: var(--orange);
        }
        .related-card h4 {
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .related-card p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 20px;
            flex: 1;
        }
        .related-card .related-link {
            color: var(--cyan);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .related-card .related-link:hover {
            gap: 10px;
        }

        /* FAQ */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-glass);
            border-radius: 14px;
            margin-bottom: 12px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            overflow: hidden;
            transition: all .3s ease;
        }
        .faq-item:hover {
            border-color: rgba(0, 232, 255, 0.3);
        }
        .faq-item .accordion-button {
            background: transparent;
            color: #fff;
            font-weight: 600;
            padding: 20px 24px;
            font-size: 16px;
            box-shadow: none;
            display: flex;
            align-items: center;
            gap: 12px;
            border: none;
        }
        .faq-item .accordion-button:not(.collapsed) {
            background: rgba(0, 232, 255, 0.06);
            color: var(--cyan);
        }
        .faq-item .accordion-button::after {
            display: none;
        }
        .faq-item .q-mark {
            width: 28px;
            height: 28px;
            border-radius: 6px;
            background: rgba(0, 232, 255, 0.1);
            border: 1px solid rgba(0, 232, 255, 0.3);
            color: var(--cyan);
            font-size: 14px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .faq-item .accordion-button:not(.collapsed) .q-mark {
            background: var(--cyan);
            color: #0B0F1E;
        }
        .faq-item .arrow-icon {
            margin-left: auto;
            font-size: 18px;
            color: var(--text-muted);
            transition: transform .3s ease;
            flex-shrink: 0;
        }
        .faq-item .accordion-button:not(.collapsed) .arrow-icon {
            transform: rotate(45deg);
            color: var(--cyan);
        }
        .faq-item .accordion-collapse {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }
        .faq-item .accordion-body {
            padding: 16px 24px 20px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.75;
            background: rgba(0, 0, 0, 0.15);
        }

        /* CTA */
        .cta-section {
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-banner {
            position: relative;
            border-radius: 20px;
            padding: 56px 48px;
            background: linear-gradient(110deg, rgba(14, 21, 38, 0.97), rgba(11, 15, 30, 0.92));
            border: 1px solid rgba(255, 255, 255, 0.12);
            overflow: hidden;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: repeating-linear-gradient(45deg, transparent, transparent 18px, rgba(255, 255, 255, 0.02) 18px, rgba(255, 255, 255, 0.02) 20px);
            pointer-events: none;
        }
        .cta-banner::after {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 280px;
            height: 280px;
            background: var(--cyan);
            filter: blur(120px);
            opacity: 0.2;
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-banner .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-banner h3 {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-banner p {
            color: var(--text-muted);
            font-size: 16px;
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-btns {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        @media(max-width:768px) {
            .cta-banner {
                padding: 36px 24px;
            }
            .cta-banner h3 {
                font-size: 22px;
            }
            .cta-btns .btn-cyan-glow,
            .cta-btns .btn-glass-outline {
                width: 100%;
            }
        }

        /* Footer */
        .site-footer {
            background: #080C16;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            position: relative;
        }
        .footer-deco {
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--cyan), var(--orange), transparent);
            opacity: 0.6;
        }
        .footer-row {
            padding: 56px 0 40px;
        }
        .footer-brand .brand {
            font-size: 20px;
        }
        .footer-desc {
            color: var(--text-dim);
            font-size: 14px;
            line-height: 1.8;
            margin: 16px 0 20px;
            max-width: 320px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            transition: all .3s ease;
        }
        .footer-social a svg {
            width: 18px;
            height: 18px;
        }
        .footer-social a:hover {
            background: rgba(0, 232, 255, 0.1);
            border-color: var(--cyan);
            color: var(--cyan);
            transform: translateY(-2px);
        }
        .footer-col-title {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 24px;
            height: 2px;
            background: var(--cyan);
            border-radius: 2px;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            color: var(--text-dim);
            font-size: 14px;
            transition: all .3s ease;
            display: inline-block;
        }
        .footer-links a:hover {
            color: var(--cyan);
            transform: translateX(3px);
        }
        .footer-contact {
            color: var(--text-dim);
            font-size: 14px;
            line-height: 2.2;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 20px 0;
            text-align: center;
            color: var(--text-dim);
            font-size: 13px;
        }
        .footer-bottom-wrap {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-bottom a {
            color: var(--text-dim);
        }
        .footer-bottom a:hover {
            color: var(--cyan);
        }
        @media(max-width:768px) {
            .footer-bottom-wrap {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
        }

        /* Float CTA */
        .float-cta {
            position: fixed;
            bottom: 32px;
            right: 24px;
            z-index: 1030;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 52px;
            padding: 0 28px;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--cyan), #00B8D9);
            color: #0B0F1E;
            font-weight: 700;
            font-size: 15px;
            box-shadow: 0 8px 36px rgba(0, 232, 255, 0.45);
            border: none;
            transition: all .3s ease;
        }
        .float-cta:hover {
            box-shadow: 0 8px 52px rgba(0, 232, 255, 0.6);
            transform: translateY(-2px);
            color: #0B0F1E;
        }
        @media(max-width:576px) {
            .float-cta {
                bottom: 20px;
                right: 16px;
                height: 48px;
                padding: 0 22px;
            }
        }

        /* focus */
        a:focus-visible,
        button:focus-visible,
        .form-control:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 3px;
        }