/* roulang page: index */
:root {
  --ice-950: #061326;
  --ice-900: #0A1D3A;
  --ice-800: #10294A;
  --ice-700: #1B3B66;
  --ice-100: #D6E6FF;
  --ice-50: #F0F7FF;
  --accent-cyan: #22D3EE;
  --accent-cyan-dim: rgba(34, 211, 238, 0.18);
  --accent-red: #FF4D6D;
  --accent-red-dim: rgba(255, 77, 109, 0.15);
  --warm-yellow: #FFC857;
  --glass-bg: rgba(16, 41, 74, 0.42);
  --glass-border: rgba(214, 230, 255, 0.14);
  --glass-highlight: rgba(255, 255, 255, 0.08);
  --shadow-card: 0 16px 40px -12px rgba(0, 8, 20, 0.6);
  --shadow-glow-cyan: 0 0 30px -4px rgba(34, 211, 238, 0.45);
  --shadow-glow-red: 0 0 30px -6px rgba(255, 77, 109, 0.4);
  --grad-ice-glow: linear-gradient(120deg, rgba(34,211,238,0.06) 0%, rgba(255,77,109,0.05) 100%);
  --grad-cta: linear-gradient(135deg, #22D3EE 0%, #0891B2 100%);
  --grad-cta-hot: linear-gradient(135deg, #FF4D6D 0%, #E11D48 100%);
  --display-xl: clamp(2.5rem, 5.5vw, 3.75rem);
  --heading-1: clamp(2rem, 3.2vw, 2.5rem);
  --heading-2: 1.75rem;
  --heading-3: 1.25rem;
  --body-lg: 1.0625rem;
  --body: 1rem;
  --small: 0.875rem;
  --micro: 0.75rem;
  --num-lg: 2rem;
  --radius-card: 20px;
  --radius-small: 12px;
  --container-max: 1280px;
  --transition-base: 0.3s ease;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  font-size: var(--body);
  line-height: 1.75;
  background-color: var(--ice-950);
  color: var(--ice-50);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: var(--accent-cyan);
  text-decoration: none;
  transition: color var(--transition-base);
}
a:hover {
  color: var(--ice-50);
}
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}
button {
  cursor: pointer;
  border: none;
  background: none;
}
ul, ol {
  list-style: none;
}
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 32px;
}
.section {
  padding: clamp(3rem, 6vw, 5rem) 0;
  position: relative;
}
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto clamp(2rem, 4vw, 3rem);
}
.section-head .section-eyebrow {
  display: inline-block;
  font-size: var(--micro);
  color: var(--accent-cyan);
  background: var(--accent-cyan-dim);
  border-radius: 8px;
  padding: 4px 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}
.section-head h2 {
  font-size: var(--heading-1);
  line-height: 1.2;
  font-weight: 700;
  margin-bottom: 12px;
}
.section-head p {
  color: var(--ice-100);
  font-size: var(--body-lg);
}
.text-gradient {
  background: linear-gradient(120deg, var(--accent-cyan), var(--ice-50));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
/* 玻璃卡片 */
.glass-card {
  position: relative;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}
.glass-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 40%;
  background: linear-gradient(180deg, var(--glass-highlight), transparent);
  border-radius: var(--radius-card) var(--radius-card) 0 0;
  pointer-events: none;
  z-index: 1;
}
.glass-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 50px -10px rgba(0, 8, 20, 0.7);
  border-color: rgba(34, 211, 238, 0.3);
}
/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 32px;
  border-radius: 999px;
  font-size: var(--body);
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: all var(--transition-base);
  white-space: nowrap;
  line-height: 1;
}
.btn-cyan {
  background: var(--grad-cta);
  color: #fff;
  box-shadow: var(--shadow-glow-cyan);
}
.btn-cyan:hover {
  color: #fff;
  transform: translateY(-2px);
  filter: brightness(1.08);
  box-shadow: 0 0 40px -2px rgba(34, 211, 238, 0.6);
}
.btn-cyan:active {
  transform: translateY(0);
  filter: brightness(0.96);
}
.btn-hot {
  background: var(--grad-cta-hot);
  color: #fff;
  box-shadow: var(--shadow-glow-red);
  animation: pulse-glow 2s ease-in-out infinite;
}
.btn-hot:hover {
  color: #fff;
  transform: translateY(-2px);
  filter: brightness(1.06);
}
.btn-hot:active {
  transform: translateY(0);
  filter: brightness(0.94);
}
.btn-ghost {
  background: transparent;
  color: var(--ice-100);
  border: 1px solid var(--glass-border);
}
.btn-ghost:hover {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  transform: translateY(-2px);
}
.btn-ghost:active {
  transform: translateY(0);
}
@keyframes pulse-glow {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.02); }
}
/* 徽章与标签 */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--micro);
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 8px;
  border: none;
}
.badge-cyan {
  background: var(--accent-cyan-dim);
  color: var(--accent-cyan);
}
.badge-hot {
  background: var(--accent-red);
  color: #fff;
  transform: rotate(6deg);
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 3;
  padding: 6px 14px;
  border-radius: 8px;
  box-shadow: var(--shadow-glow-red);
}
.badge-yellow {
  background: rgba(255, 200, 87, 0.16);
  color: var(--warm-yellow);
}
.badge-time {
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.8);
}
/* 顶栏 */
.top-bar {
  background: var(--ice-900);
  height: 36px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(214, 230, 255, 0.06);
  font-size: var(--micro);
  color: var(--ice-100);
}
.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}
.top-bar-links {
  display: flex;
  gap: 20px;
}
.top-bar-links a {
  color: var(--ice-100);
  font-size: var(--micro);
  transition: color var(--transition-base);
}
.top-bar-links a:hover {
  color: var(--accent-cyan);
}
/* 主导航 */
.main-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(6, 19, 38, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(214, 230, 255, 0.08);
  transition: all var(--transition-base);
}
.main-header .nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 16px;
}
.nav-left, .nav-right {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}
.nav-right {
  justify-content: flex-end;
}
.nav-link {
  display: inline-block;
  padding: 8px 16px;
  color: var(--ice-100);
  font-size: var(--small);
  font-weight: 500;
  border-radius: 8px;
  position: relative;
  transition: color var(--transition-base);
}
.nav-link:hover {
  color: var(--accent-cyan);
}
.nav-link.active {
  color: var(--accent-cyan);
  font-weight: 700;
}
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--accent-cyan);
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(34, 211, 238, 0.6);
}
.nav-cta {
  min-height: 40px;
  padding: 0 22px;
  font-size: var(--small);
  margin-left: 12px;
}
.logo-center {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 8px 20px;
  border-radius: 16px;
  transition: all var(--transition-base);
}
.logo:hover {
  border-color: rgba(34, 211, 238, 0.4);
  box-shadow: 0 0 24px rgba(34, 211, 238, 0.12);
}
.logo-icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}
.logo-text {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--ice-50);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
/* 移动端菜单 */
.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  flex-shrink: 0;
}
.menu-toggle svg {
  width: 20px;
  height: 20px;
}
.menu-register-mobile {
  display: none;
}
.mobile-drawer {
  display: none;
  position: fixed;
  top: 0;
  right: 0;
  width: min(320px, 85vw);
  height: 100vh;
  background: rgba(6, 19, 38, 0.97);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  z-index: 200;
  padding: 32px 24px;
  flex-direction: column;
  gap: 8px;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
}
.mobile-drawer.open {
  transform: translateX(0);
}
.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.mobile-drawer .drawer-logo {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--ice-50);
}
.drawer-close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--ice-100);
}
.mobile-drawer .drawer-link {
  display: block;
  padding: 14px 16px;
  font-size: 1.125rem;
  color: var(--ice-100);
  border-radius: 12px;
  border-bottom: 1px solid rgba(214, 230, 255, 0.06);
  transition: all var(--transition-base);
}
.mobile-drawer .drawer-link:hover,
.mobile-drawer .drawer-link.active {
  color: var(--accent-cyan);
  background: var(--accent-cyan-dim);
}
.drawer-btn {
  margin-top: 20px;
  width: 100%;
}
.drawer-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 150;
}
.drawer-overlay.show {
  display: block;
}
/* Hero */
.hero {
  position: relative;
  padding: clamp(4rem, 8vw, 6.5rem) 0;
  background:
    linear-gradient(120deg, rgba(6, 19, 38, 0.94) 0%, rgba(6, 19, 38, 0.78) 50%, rgba(10, 29, 58, 0.5) 100%),
    url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -10%;
  width: 60%;
  height: 120%;
  background: radial-gradient(ellipse at center, rgba(34, 211, 238, 0.14) 0%, transparent 70%);
  transform: rotate(8deg);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -40%;
  right: -5%;
  width: 50%;
  height: 100%;
  background: radial-gradient(ellipse at center, rgba(255, 77, 109, 0.1) 0%, transparent 70%);
  transform: rotate(-8deg);
  pointer-events: none;
}
.hero-ice-pattern {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(214, 230, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(214, 230, 255, 0.03) 1px, transparent 1px),
    linear-gradient(120deg, transparent 0%, rgba(34, 211, 238, 0.04) 50%, transparent 100%);
  background-size: 80px 80px, 80px 80px, 100% 100%;
  pointer-events: none;
}
.hero .container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}
.hero-content {
  max-width: 640px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 8px 18px;
  border-radius: 999px;
  font-size: var(--small);
  font-weight: 600;
  color: var(--ice-100);
  margin-bottom: 24px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.hero-badge .puck-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--ice-50), var(--accent-cyan));
  box-shadow: 0 0 8px rgba(34, 211, 238, 0.5);
  flex-shrink: 0;
}
.hero h1 {
  font-size: var(--display-xl);
  line-height: 1.15;
  font-weight: 800;
  margin-bottom: 20px;
}
.hero-subtitle {
  font-size: var(--body-lg);
  color: var(--ice-100);
  max-width: 440px;
  margin-bottom: 32px;
  font-weight: 500;
}
.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.hero-stats {
  display: flex;
  gap: 0;
  margin-top: 40px;
  border-top: 1px solid rgba(214, 230, 255, 0.08);
  padding-top: 28px;
}
.hero-stat {
  flex: 1;
  position: relative;
  text-align: center;
}
.hero-stat + .hero-stat::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  height: 60%;
  width: 1px;
  background: rgba(214, 230, 255, 0.1);
}
.hero-stat .stat-num {
  display: block;
  font-size: var(--num-lg);
  font-weight: 800;
  color: var(--ice-50);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
}
.hero-stat .stat-label {
  font-size: var(--micro);
  color: var(--ice-100);
  margin-top: 6px;
  opacity: 0.8;
}
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 420px;
}
.hero-visual .glass-ring {
  position: absolute;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.hero-visual .ring-1 {
  width: 320px;
  height: 320px;
  animation: float-slow 6s ease-in-out infinite;
}
.hero-visual .ring-2 {
  width: 220px;
  height: 220px;
  border-width: 2px;
  border-color: rgba(34, 211, 238, 0.25);
  animation: float-slower 8s ease-in-out infinite reverse;
}
.hero-visual .puck-large {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, var(--ice-50) 0%, var(--ice-100) 20%, var(--ice-700) 55%, var(--ice-800) 100%);
  box-shadow:
    0 0 50px rgba(34, 211, 238, 0.3),
    inset 0 0 30px rgba(6, 19, 38, 0.4);
  position: relative;
  z-index: 2;
  animation: puck-spin 12s linear infinite;
}
.hero-visual .puck-large::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 2px solid var(--accent-red);
  box-shadow: 0 0 20px rgba(255, 77, 109, 0.4);
}
@keyframes float-slow {
  0%, 100% { transform: translateY(-20px) rotate(0deg); }
  50% { transform: translateY(20px) rotate(10deg); }
}
@keyframes float-slower {
  0%, 100% { transform: translateY(15px) rotate(0deg); }
  50% { transform: translateY(-15px) rotate(-8deg); }
}
@keyframes puck-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
/* 品牌流动带 */
.logo-marquee {
  background: var(--ice-900);
  border-top: 1px solid rgba(214, 230, 255, 0.04);
  border-bottom: 1px solid rgba(214, 230, 255, 0.04);
  padding: 24px 0;
  overflow: hidden;
  position: relative;
}
.logo-marquee::before,
.logo-marquee::after {
  content: '';
  position: absolute;
  top: 0;
  width: 120px;
  height: 100%;
  z-index: 2;
  pointer-events: none;
}
.logo-marquee::before {
  left: 0;
  background: linear-gradient(90deg, var(--ice-900), transparent);
}
.logo-marquee::after {
  right: 0;
  background: linear-gradient(270deg, var(--ice-900), transparent);
}
.marquee-track {
  display: flex;
  gap: 48px;
  width: max-content;
  animation: marquee-scroll 24s linear infinite;
  padding: 0 32px;
}
.marquee-track span {
  font-size: var(--small);
  color: rgba(240, 247, 255, 0.55);
  font-weight: 600;
  white-space: nowrap;
  letter-spacing: 0.06em;
  transition: color var(--transition-base);
}
.marquee-track span:hover {
  color: var(--accent-cyan);
}
@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
/* 优惠阶梯 */
.offer-card {
  padding: 32px 24px;
  text-align: center;
  position: relative;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.offer-card.featured {
  transform: scale(1.05);
  border-color: rgba(34, 211, 238, 0.3);
  box-shadow: 0 20px 50px -10px rgba(0, 8, 20, 0.6), 0 0 40px -8px rgba(34, 211, 238, 0.2);
}
.offer-card.featured:hover {
  transform: scale(1.05) translateY(-6px);
}
.offer-icon {
  width: 72px;
  height: 72px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  background: var(--grad-ice-glow);
  border: 1px solid var(--glass-border);
}
.offer-icon svg {
  width: 36px;
  height: 36px;
}
.offer-name {
  font-size: var(--heading-3);
  font-weight: 700;
  margin-bottom: 8px;
}
.offer-desc {
  font-size: var(--small);
  color: var(--ice-100);
  margin-bottom: 20px;
  flex: 1;
}
.offer-value {
  font-size: var(--display-xl);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--ice-50);
  line-height: 1.2;
  margin-bottom: 8px;
}
.offer-value em {
  font-style: normal;
  font-size: var(--body);
  font-weight: 400;
  color: var(--ice-100);
  margin-left: 4px;
}
.offer-limit {
  font-size: var(--micro);
  color: var(--accent-red);
  margin-bottom: 20px;
}
.offer-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--small);
  font-weight: 700;
  color: var(--accent-cyan);
}
.offer-link:hover {
  color: var(--ice-50);
}
.offer-link svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-base);
}
.offer-link:hover svg {
  transform: translateX(4px);
}
.offer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}
/* 套餐对比 */
.plan-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}
.plan-card {
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  height: 100%;
  position: relative;
  text-align: center;
}
.plan-card.popular {
  border: 2px solid rgba(255, 77, 109, 0.4);
  box-shadow: 0 20px 50px -10px rgba(0, 8, 20, 0.6), 0 0 50px -12px rgba(255, 77, 109, 0.2);
}
.plan-badge {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--grad-cta-hot);
  color: #fff;
  font-size: var(--micro);
  font-weight: 700;
  padding: 6px 18px;
  border-radius: 999px;
  box-shadow: var(--shadow-glow-red);
  white-space: nowrap;
}
.plan-name {
  font-size: var(--heading-3);
  font-weight: 700;
  margin-bottom: 8px;
}
.plan-price {
  font-size: var(--num-lg);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  margin-bottom: 4px;
  color: var(--ice-50);
}
.plan-price .currency {
  font-size: 1rem;
  vertical-align: top;
  margin-right: 2px;
}
.plan-period {
  font-size: var(--micro);
  color: var(--ice-100);
  margin-bottom: 8px;
}
.plan-toggle {
  display: inline-flex;
  gap: 4px;
  background: rgba(255, 255, 255, 0.05);
  padding: 4px;
  border-radius: 999px;
  margin-bottom: 24px;
  font-size: var(--micro);
}
.plan-toggle button {
  padding: 6px 14px;
  border-radius: 999px;
  color: var(--ice-100);
  font-size: var(--micro);
  font-weight: 600;
  transition: all var(--transition-base);
}
.plan-toggle button.active {
  background: var(--accent-cyan-dim);
  color: var(--accent-cyan);
}
.plan-features {
  flex: 1;
  text-align: left;
  margin-bottom: 24px;
}
.plan-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  font-size: var(--small);
  color: var(--ice-100);
  line-height: 1.5;
}
.plan-features li svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 2px;
}
.plan-features li.feature-disabled {
  color: rgba(214, 230, 255, 0.35);
}
.plan-btn {
  width: 100%;
}
/* 资讯区 */
.cms-news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.news-card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.news-card .news-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  color: inherit;
}
.news-cover {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--ice-800);
}
.news-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.news-card:hover .news-cover img {
  transform: scale(1.03);
}
.news-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
  z-index: 2;
  position: relative;
}
.news-body .badge {
  align-self: flex-start;
  margin-bottom: 12px;
}
.news-title {
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  color: var(--ice-50);
}
.news-excerpt {
  font-size: var(--small);
  color: var(--ice-100);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
  flex: 1;
}
.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.news-meta time {
  font-size: var(--micro);
  color: rgba(214, 230, 255, 0.7);
}
.read-more {
  font-size: var(--micro);
  font-weight: 700;
  color: var(--accent-cyan);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.read-more:hover {
  color: var(--ice-50);
}
.empty-state {
  text-align: center;
  padding: 60px 24px;
  background: var(--glass-bg);
  border: 1px dashed var(--glass-border);
  border-radius: var(--radius-card);
  grid-column: 1 / -1;
}
.empty-state svg {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  color: var(--ice-700);
}
.empty-state p {
  color: var(--ice-100);
  font-size: var(--body);
}
.section-footer {
  text-align: center;
  margin-top: 40px;
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--small);
  font-weight: 700;
  color: var(--accent-cyan);
}
.text-link:hover {
  color: var(--ice-50);
}
.text-link svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-base);
}
.text-link:hover svg {
  transform: translateX(4px);
}
/* 限时入口 */
.limited-section {
  position: relative;
  background:
    radial-gradient(ellipse at 80% 50%, rgba(255, 77, 109, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse at 20% 50%, rgba(34, 211, 238, 0.1) 0%, transparent 60%),
    var(--ice-900);
  border-top: 2px solid rgba(255, 77, 109, 0.3);
  border-bottom: 2px solid rgba(255, 77, 109, 0.3);
  overflow: hidden;
}
.limited-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(8deg, transparent 0%, rgba(255, 77, 109, 0.04) 100%);
  pointer-events: none;
}
.limited-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  position: relative;
  z-index: 2;
}
.limited-text h2 {
  font-size: var(--heading-2);
  font-weight: 800;
  margin-bottom: 8px;
}
.limited-text p {
  color: var(--ice-100);
  font-size: var(--body);
  margin-bottom: 16px;
}
.countdown {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
}
.countdown-label {
  font-size: var(--small);
  color: var(--ice-100);
  margin-right: 8px;
}
.countdown-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 56px;
  height: 64px;
  background: rgba(255, 77, 109, 0.12);
  border: 1px solid rgba(255, 77, 109, 0.25);
  border-radius: 12px;
  font-size: 2.5rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--accent-red);
  line-height: 1;
}
.countdown-sep {
  font-size: 2rem;
  color: rgba(255, 255, 255, 0.6);
  font-weight: 700;
}
.limited-action {
  text-align: center;
}
.limited-action .btn {
  padding: 0 48px;
  min-height: 56px;
  font-size: var(--body-lg);
}
.limited-hint {
  font-size: var(--micro);
  color: var(--ice-100);
  margin-top: 12px;
  opacity: 0.7;
}
/* FAQ */
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.faq-item {
  padding: 0;
  overflow: hidden;
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 28px;
  background: transparent;
  text-align: left;
  font-size: var(--body-lg);
  font-weight: 700;
  color: var(--ice-50);
  transition: color var(--transition-base);
  position: relative;
  z-index: 2;
}
.faq-question:hover {
  color: var(--accent-cyan);
}
.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-cyan-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}
.faq-icon svg {
  width: 14px;
  height: 14px;
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--accent-red-dim);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.faq-answer-inner {
  padding: 0 28px 24px;
  color: var(--ice-100);
  font-size: var(--body);
  line-height: 1.75;
  position: relative;
  z-index: 2;
}
/* 咨询表单 */
.contact-section {
  background:
    radial-gradient(ellipse at 10% 100%, rgba(34, 211, 238, 0.06) 0%, transparent 50%),
    var(--ice-950);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.contact-info h2 {
  font-size: var(--heading-1);
  margin-bottom: 16px;
}
.contact-info > p {
  color: var(--ice-100);
  margin-bottom: 24px;
  max-width: 420px;
}
.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 0;
}
.contact-item svg {
  width: 26px;
  height: 26px;
  color: var(--accent-cyan);
  flex-shrink: 0;
}
.contact-item .contact-label {
  font-size: var(--micro);
  color: var(--ice-100);
  opacity: 0.7;
  display: block;
}
.contact-item .contact-value {
  font-size: var(--body);
  font-weight: 600;
  color: var(--ice-50);
}
.qr-placeholder {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 16px 24px;
  margin-top: 24px;
  max-width: 360px;
}
.qr-box {
  width: 80px;
  height: 80px;
  border-radius: 12px;
  background:
    linear-gradient(45deg, rgba(34,211,238,0.2) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(34,211,238,0.2) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(34,211,238,0.2) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(34,211,238,0.2) 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
  border: 1px solid var(--glass-border);
}
.qr-box::before {
  content: '微信扫码';
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  font-size: 12px;
  color: var(--ice-100);
  background: rgba(6, 19, 38, 0.6);
  border-radius: 12px;
}
.qr-text {
  font-size: var(--small);
  color: var(--ice-100);
}
.contact-form-wrap {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  padding: 32px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
}
.contact-form-wrap::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 40%;
  background: linear-gradient(180deg, var(--glass-highlight), transparent);
  pointer-events: none;
}
.contact-form-wrap h3 {
  font-size: var(--heading-3);
  margin-bottom: 24px;
  text-align: center;
  position: relative;
  z-index: 2;
}
.form-group {
  margin-bottom: 18px;
  position: relative;
  z-index: 2;
}
.form-group label {
  display: block;
  font-size: var(--small);
  color: var(--ice-100);
  margin-bottom: 8px;
  font-weight: 500;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-small);
  padding: 12px 16px;
  min-height: 48px;
  color: var(--ice-50);
  font-size: var(--body);
  transition: all var(--transition-base);
  outline: none;
}
.form-group textarea {
  min-height: 96px;
  resize: vertical;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 4px rgba(34, 211, 238, 0.12);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(214, 230, 255, 0.4);
}
.form-group select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%23D6E6FF' stroke-width='2' viewBox='0 0 24 24'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}
.form-error {
  color: #FF6B6B;
  font-size: var(--micro);
  margin-top: 6px;
  display: none;
}
.form-group.has-error input,
.form-group.has-error select,
.form-group.has-error textarea {
  border-color: #FF6B6B;
}
.form-group.has-error .form-error {
  display: block;
}
.form-success {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: rgba(74, 222, 128, 0.1);
  border: 1px solid rgba(74, 222, 128, 0.3);
  color: #4ADE80;
  padding: 16px;
  border-radius: var(--radius-small);
  margin-top: 16px;
  font-weight: 600;
  position: relative;
  z-index: 2;
}
.form-success.show {
  display: flex;
}
.form-success svg {
  width: 20px;
  height: 20px;
}
.form-submit {
  width: 100%;
  position: relative;
  z-index: 2;
}
/* 页脚 */
.site-footer {
  background: var(--ice-900);
  border-top: 1px solid var(--ice-700);
  padding-top: 56px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1.2fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.footer-logo .logo-icon {
  width: 28px;
  height: 28px;
}
.footer-logo .logo-text {
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--ice-50);
}
.footer-desc {
  font-size: var(--small);
  color: var(--ice-100);
  line-height: 1.7;
  margin-bottom: 16px;
  max-width: 320px;
}
.footer-trust {
  display: flex;
  gap: 12px;
  align-items: center;
  font-size: var(--micro);
  color: var(--ice-100);
  opacity: 0.8;
}
.footer-trust svg {
  width: 18px;
  height: 18px;
  color: var(--accent-cyan);
}
.footer-col h4 {
  font-size: var(--body);
  font-weight: 700;
  color: var(--ice-50);
  margin-bottom: 16px;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul li a {
  font-size: var(--small);
  color: var(--ice-100);
  transition: color var(--transition-base);
}
.footer-col ul li a:hover {
  color: var(--accent-cyan);
}
.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: var(--small);
  color: var(--ice-100);
  margin-bottom: 14px;
}
.footer-contact svg {
  width: 18px;
  height: 18px;
  color: var(--accent-cyan);
  flex-shrink: 0;
  margin-top: 2px;
}
.footer-bottom {
  border-top: 1px solid var(--ice-700);
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--micro);
  color: var(--ice-100);
  opacity: 0.8;
}
.footer-bottom-links {
  display: flex;
  gap: 20px;
}
.footer-bottom-links a {
  color: var(--ice-100);
}
.footer-bottom-links a:hover {
  color: var(--accent-cyan);
}
/* 冰裂纹底纹装饰 */
.ice-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(34, 211, 238, 0.2), transparent);
  border: none;
  margin: 0;
}
/* 响应式 */
@media (max-width: 1199px) {
  .nav-left .nav-link,
  .nav-right .nav-link {
    padding: 8px 12px;
    font-size: 0.8125rem;
  }
  .hero-visual {
    min-height: 360px;
  }
  .hero-visual .ring-1 {
    width: 260px;
    height: 260px;
  }
  .hero-visual .ring-2 {
    width: 180px;
    height: 180px;
  }
}
@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }
  .top-bar {
    display: none;
  }
  .main-header .nav-container {
    height: 64px;
    padding: 0 16px;
  }
  .nav-left, .nav-right {
    display: none;
  }
  .menu-toggle {
    display: flex;
    order: 1;
  }
  .menu-register-mobile {
    display: inline-flex;
    order: 3;
    min-height: 36px;
    padding: 0 16px;
    font-size: var(--micro);
  }
  .logo-center {
    order: 2;
    flex: 1;
  }
  .logo {
    padding: 6px 14px;
    border-radius: 12px;
  }
  .logo-icon {
    width: 26px;
    height: 26px;
  }
  .logo-text {
    font-size: 1.0625rem;
  }
  .hero {
    padding: 56px 0 64px;
  }
  .hero .container {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .hero-content {
    text-align: center;
    max-width: 100%;
  }
  .hero-badge {
    margin-bottom: 16px;
  }
  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-cta {
    justify-content: center;
  }
  .hero-stats {
    flex-wrap: wrap;
    gap: 16px;
  }
  .hero-stat {
    flex: 1 1 45%;
  }
  .hero-stat:nth-child(2)::before {
    display: none;
  }
  .hero-visual {
    display: none;
  }
  .offer-grid,
  .plan-grid,
  .cms-news-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .offer-card.featured {
    transform: none;
  }
  .offer-card.featured:hover {
    transform: translateY(-6px);
  }
  .plan-card {
    max-width: 400px;
    margin: 0 auto;
    width: 100%;
  }
  .limited-inner {
    justify-content: center;
    text-align: center;
    flex-direction: column;
  }
  .countdown {
    justify-content: center;
    flex-wrap: wrap;
  }
  .countdown-num {
    min-width: 48px;
    height: 56px;
    font-size: 2rem;
  }
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .contact-info {
    text-align: center;
  }
  .contact-info > p {
    margin-left: auto;
    margin-right: auto;
  }
  .contact-item {
    justify-content: center;
  }
  .qr-placeholder {
    margin: 24px auto 0;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    height: auto;
    padding: 16px 0;
    gap: 8px;
    text-align: center;
  }
  .faq-question {
    padding: 20px;
    font-size: var(--body);
  }
  .faq-answer-inner {
    padding: 0 20px 20px;
  }
  .contact-form-wrap {
    padding: 24px 20px;
  }
}
@media (max-width: 520px) {
  .hero h1 {
    font-size: 2rem;
  }
  .hero .btn {
    width: 100%;
  }
  .hero-cta {
    flex-direction: column;
    gap: 12px;
  }
  .section-head h2 {
    font-size: 1.625rem;
  }
  .countdown-num {
    min-width: 44px;
    height: 50px;
    font-size: 1.75rem;
  }
  .countdown-sep {
    font-size: 1.5rem;
  }
  .limited-action .btn {
    width: 100%;
  }
  .form-submit {
    min-height: 52px;
  }
}

/* roulang page: category1 */
:root {
  --ice-950: #061326;
  --ice-900: #0A1D3A;
  --ice-800: #10294A;
  --ice-700: #1B3B66;
  --ice-100: #D6E6FF;
  --ice-50: #F0F7FF;
  --accent-cyan: #22D3EE;
  --accent-cyan-dim: rgba(34, 211, 238, 0.18);
  --accent-red: #FF4D6D;
  --accent-red-dim: rgba(255, 77, 109, 0.15);
  --warm-yellow: #FFC857;
  --glass-bg: rgba(16, 41, 74, 0.42);
  --glass-border: rgba(214, 230, 255, 0.14);
  --glass-highlight: rgba(255, 255, 255, 0.08);
  --shadow-card: 0 16px 40px -12px rgba(0, 8, 20, 0.6);
  --shadow-glow-cyan: 0 0 30px -4px rgba(34, 211, 238, 0.45);
  --shadow-glow-red: 0 0 30px -6px rgba(255, 77, 109, 0.4);
  --grad-cta: linear-gradient(135deg, #22D3EE 0%, #0891B2 100%);
  --grad-cta-hot: linear-gradient(135deg, #FF4D6D 0%, #E11D48 100%);
  --radius-card: 20px;
  --radius-input: 12px;
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--ice-950);
  color: var(--ice-50);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.no-scroll {
  overflow: hidden;
}

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

a:hover {
  color: #67E8F9;
}

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

ul {
  list-style: none;
}

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

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ===== 顶栏 ===== */
.top-bar {
  background: rgba(6, 19, 38, 0.9);
  border-bottom: 1px solid rgba(214, 230, 255, 0.06);
  height: 36px;
  display: flex;
  align-items: center;
  font-size: 0.8125rem;
  color: var(--ice-100);
}

.top-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

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

.top-bar-links a {
  color: var(--ice-100);
  font-size: 0.8125rem;
}

.top-bar-links a:hover {
  color: var(--accent-cyan);
}

/* ===== 主导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(6, 19, 38, 0.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(214, 230, 255, 0.08);
  transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  position: relative;
  gap: 24px;
}

.nav-left,
.nav-right {
  display: flex;
  align-items: center;
  gap: 28px;
  flex: 1;
}

.nav-right {
  justify-content: flex-end;
}

.nav-link {
  color: var(--ice-100);
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 8px 2px;
  position: relative;
  letter-spacing: 0.02em;
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--accent-cyan);
  border-radius: 2px;
  transition: width 0.3s ease;
}

.nav-link:hover {
  color: var(--accent-cyan);
}

.nav-link.active {
  color: var(--accent-cyan);
}

.nav-link.active::after {
  width: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-card);
  flex-shrink: 0;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.logo:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-cyan);
}

.logo-icon {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ice-50);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 22px;
  background: var(--grad-cta);
  color: #fff;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: var(--shadow-glow-cyan);
  transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease;
}

.nav-cta:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 0 40px -2px rgba(34, 211, 238, 0.6);
  filter: brightness(1.08);
}

.nav-cta:active {
  transform: translateY(0);
  filter: brightness(0.94);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  cursor: pointer;
}

.menu-toggle span {
  width: 20px;
  height: 2px;
  background: var(--ice-50);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.menu-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  right: 0;
  width: 280px;
  height: 100vh;
  background: rgba(6, 19, 38, 0.96);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  z-index: 200;
  padding: 88px 28px 28px;
  transform: translateX(100%);
  transition: transform 0.35s ease;
  border-left: 1px solid var(--glass-border);
  overflow-y: auto;
}

.mobile-menu.open {
  transform: translateX(0);
}

.mobile-menu a {
  display: block;
  padding: 14px 0;
  font-size: 1.125rem;
  color: var(--ice-100);
  border-bottom: 1px solid rgba(214, 230, 255, 0.06);
}

.mobile-menu a:hover {
  color: var(--accent-cyan);
}

.mobile-menu a.active {
  color: var(--accent-cyan);
  font-weight: 600;
}

.mobile-menu .mobile-card-btn {
  margin-top: 24px;
  text-align: center;
  background: var(--grad-cta);
  border-radius: 999px;
  border: none;
  color: #fff;
  height: 46px;
  line-height: 46px;
  padding: 0;
  box-shadow: var(--shadow-glow-cyan);
}

.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 150;
  backdrop-filter: blur(2px);
}

.mobile-overlay.show {
  display: block;
}

/* ===== Hero 区 ===== */
.category-hero {
  position: relative;
  min-height: 480px;
  display: flex;
  align-items: center;
  background:
    linear-gradient(120deg, rgba(6, 19, 38, 0.92) 0%, rgba(10, 29, 58, 0.72) 50%, rgba(6, 19, 38, 0.85) 100%),
    url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  overflow: hidden;
  border-bottom: 1px solid rgba(214, 230, 255, 0.06);
}

.category-hero::before {
  content: '';
  position: absolute;
  width: 480px;
  height: 480px;
  right: -120px;
  top: -80px;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.14) 0%, transparent 65%);
  pointer-events: none;
}

.category-hero::after {
  content: '';
  position: absolute;
  width: 360px;
  height: 360px;
  left: 30%;
  bottom: -160px;
  background: radial-gradient(circle, rgba(255, 77, 109, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

.category-hero .container {
  position: relative;
  z-index: 2;
  padding-top: 56px;
  padding-bottom: 56px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  color: var(--ice-100);
  margin-bottom: 24px;
}

.breadcrumb a {
  color: var(--ice-100);
}

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

.breadcrumb span {
  color: var(--accent-cyan);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--accent-cyan-dim);
  border: 1px solid rgba(34, 211, 238, 0.3);
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: 20px;
  letter-spacing: 0.03em;
}

.hero-badge svg {
  width: 14px;
  height: 14px;
}

.category-hero h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  line-height: 1.2;
  font-weight: 700;
  color: var(--ice-50);
  max-width: 720px;
  margin-bottom: 16px;
  letter-spacing: 0.01em;
}

.hero-subtitle {
  font-size: 1.375rem;
  color: var(--accent-cyan);
  font-weight: 600;
  margin-bottom: 12px;
}

.hero-desc {
  font-size: 1.0625rem;
  color: var(--ice-100);
  max-width: 560px;
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 32px;
  border-radius: 999px;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease, border-color 0.25s ease, color 0.25s ease;
  text-decoration: none;
  min-height: 44px;
  letter-spacing: 0.02em;
}

.btn-primary {
  background: var(--grad-cta);
  color: #fff;
  box-shadow: var(--shadow-glow-cyan);
}

.btn-primary:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 0 40px -2px rgba(34, 211, 238, 0.6);
  filter: brightness(1.06);
}

.btn-primary:active {
  transform: translateY(0);
  filter: brightness(0.94);
}

.btn-ghost {
  background: transparent;
  color: var(--ice-100);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.btn-ghost:hover {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  transform: translateY(-2px);
}

.btn-ghost:active {
  transform: translateY(0);
}

/* ===== 通用板块 ===== */
.content-section {
  padding: clamp(3rem, 6vw, 5rem) 0;
  position: relative;
}

.content-section + .content-section {
  border-top: 1px solid rgba(214, 230, 255, 0.05);
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 48px;
}

.section-tag {
  display: inline-block;
  padding: 4px 14px;
  background: var(--accent-cyan-dim);
  border-radius: 8px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent-cyan);
  letter-spacing: 0.04em;
  margin-bottom: 14px;
}

.section-head h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  line-height: 1.25;
  color: var(--ice-50);
  margin-bottom: 14px;
  font-weight: 700;
}

.section-head p {
  color: var(--ice-100);
  font-size: 1.0625rem;
}

/* ===== 图文交替 ===== */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 48px;
  padding: 32px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.feature-row::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 40%;
  background: linear-gradient(180deg, var(--glass-highlight), transparent);
  border-radius: var(--radius-card) var(--radius-card) 0 0;
  pointer-events: none;
}

.feature-row:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 50px -10px rgba(0, 8, 20, 0.7);
}

.feature-row.reverse {
  direction: rtl;
}

.feature-row.reverse > * {
  direction: ltr;
}

.feature-media {
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  box-shadow: var(--shadow-card);
}

.feature-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}

.feature-media:hover img {
  transform: scale(1.04);
}

.feature-content {
  padding: 8px 0;
}

.feature-content h3 {
  font-size: 1.375rem;
  line-height: 1.35;
  color: var(--ice-50);
  margin-bottom: 14px;
  font-weight: 700;
}

.feature-content p {
  color: var(--ice-100);
  font-size: 1rem;
  margin-bottom: 18px;
}

.feature-content ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--ice-100);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.feature-list li svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--accent-cyan);
  margin-top: 2px;
}

.feature-list .red-mark svg {
  color: var(--accent-red);
}

/* ===== 数据面板 ===== */
.stats-section {
  padding: clamp(3rem, 6vw, 5rem) 0;
  position: relative;
  background: linear-gradient(180deg, transparent 0%, rgba(16, 41, 74, 0.35) 50%, transparent 100%);
}

.stats-section .section-head h2 {
  color: var(--ice-50);
}

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

.stat-card {
  text-align: center;
  padding: 36px 20px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-card);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 30%;
  background: linear-gradient(180deg, var(--glass-highlight), transparent);
  pointer-events: none;
}

.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-glow-cyan);
}

.stat-num {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  color: var(--accent-cyan);
  font-variant-numeric: tabular-nums;
  display: block;
  margin-bottom: 8px;
  line-height: 1.2;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--ice-100);
}

/* ===== FAQ ===== */
.faq-section {
  padding: clamp(3rem, 6vw, 5rem) 0;
  position: relative;
}

.faq-section .container {
  max-width: 860px;
}

.faq-section .section-head {
  margin-bottom: 36px;
}

.faq-section .section-head h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
}

.faq-item {
  margin-bottom: 16px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-card);
  transition: border-color 0.3s ease;
  position: relative;
}

.faq-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 30%;
  background: linear-gradient(180deg, var(--glass-highlight), transparent);
  pointer-events: none;
  border-radius: var(--radius-card) var(--radius-card) 0 0;
}

.faq-item:hover {
  border-color: rgba(34, 211, 238, 0.35);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--ice-50);
  cursor: pointer;
  text-align: left;
  background: transparent;
  min-height: 60px;
}

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-cyan-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.35s ease, background 0.35s ease;
}

.faq-icon svg {
  width: 14px;
  height: 14px;
  stroke: var(--accent-cyan);
  stroke-width: 2.5;
  fill: none;
  stroke-linecap: round;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--accent-red-dim);
}

.faq-item.open .faq-icon svg {
  stroke: var(--accent-red);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-answer-inner {
  padding: 0 24px 24px;
  color: var(--ice-100);
  font-size: 0.9375rem;
  line-height: 1.8;
  border-top: 1px solid rgba(214, 230, 255, 0.06);
  padding-top: 16px;
}

/* ===== CTA 区 ===== */
.cta-section {
  padding: clamp(3rem, 6vw, 5rem) 0;
  background: var(--ice-900);
  border-top: 1px solid var(--ice-700);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 120%, rgba(34, 211, 238, 0.12) 0%, transparent 60%);
  pointer-events: none;
}

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

.cta-section h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  color: var(--ice-50);
  margin-bottom: 14px;
  font-weight: 700;
}

.cta-section p {
  color: var(--ice-100);
  max-width: 520px;
  margin: 0 auto 28px;
  font-size: 1.0625rem;
}

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

/* ===== 页脚 ===== */
.site-footer {
  background: var(--ice-900);
  border-top: 1px solid var(--ice-700);
  padding: 56px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
}

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

.footer-logo .logo-icon {
  width: 32px;
  height: 32px;
}

.footer-logo .logo-text {
  font-size: 1.25rem;
  color: var(--ice-50);
  font-weight: 700;
}

.footer-desc {
  color: var(--ice-100);
  font-size: 0.875rem;
  line-height: 1.7;
  margin-bottom: 16px;
  max-width: 320px;
}

.footer-trust {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ice-100);
  font-size: 0.875rem;
  padding: 8px 14px;
  background: rgba(34, 211, 238, 0.1);
  border-radius: 999px;
  border: 1px solid rgba(34, 211, 238, 0.2);
}

.footer-trust svg {
  width: 16px;
  height: 16px;
  color: var(--accent-cyan);
}

.footer-col h4 {
  color: var(--ice-50);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul a {
  color: var(--ice-100);
  font-size: 0.875rem;
}

.footer-col ul a:hover {
  color: var(--accent-cyan);
}

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ice-100);
  font-size: 0.875rem;
}

.footer-contact svg {
  width: 16px;
  height: 16px;
  color: var(--accent-cyan);
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(214, 230, 255, 0.1);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.8125rem;
  color: var(--ice-100);
}

.footer-bottom-links {
  display: flex;
  gap: 20px;
}

.footer-bottom-links a {
  color: var(--ice-100);
  font-size: 0.8125rem;
}

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

/* ===== 响应式 ===== */
@media (max-width: 1199px) {
  .container {
    padding: 0 24px;
  }

  .nav-left,
  .nav-right {
    gap: 18px;
  }

  .nav-cta {
    padding: 0 16px;
    font-size: 0.8125rem;
  }

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

@media (max-width: 991px) {
  .header-inner {
    justify-content: center;
  }

  .nav-left,
  .nav-right {
    display: none;
  }

  .menu-toggle {
    display: flex;
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
  }

  .mobile-menu {
    display: block;
  }

  .logo {
    position: static;
    transform: none;
  }

  .feature-row {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 24px;
  }

  .feature-row.reverse {
    direction: ltr;
  }

  .feature-media {
    aspect-ratio: 16 / 10;
  }

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

@media (max-width: 767px) {
  .top-bar {
    display: none;
  }

  .header-inner {
    height: 64px;
  }

  .logo-text {
    font-size: 1.0625rem;
  }

  .logo-icon {
    width: 26px;
    height: 26px;
  }

  .category-hero {
    min-height: 420px;
  }

  .category-hero .container {
    padding-top: 36px;
    padding-bottom: 36px;
  }

  .category-hero h1 {
    font-size: 1.75rem;
  }

  .hero-subtitle {
    font-size: 1.125rem;
  }

  .hero-desc {
    font-size: 0.9375rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .container {
    padding: 0 16px;
  }

  .feature-row {
    padding: 18px;
  }

  .feature-content h3 {
    font-size: 1.125rem;
  }

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

  .section-head {
    margin-bottom: 32px;
  }

  .section-head p {
    font-size: 0.9375rem;
  }

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

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .faq-question {
    font-size: 0.9375rem;
    padding: 16px 18px;
  }

  .faq-answer-inner {
    padding: 0 18px 18px;
    font-size: 0.875rem;
  }

  .cta-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .cta-actions .btn {
    width: 100%;
  }

  .footer-logo,
  .footer-trust {
    justify-content: center;
  }

  .footer-desc {
    max-width: 100%;
  }

  .footer-col {
    text-align: center;
  }

  .footer-contact li {
    justify-content: center;
  }
}

@media (min-width: 992px) {
  .mobile-menu,
  .mobile-overlay {
    display: none !important;
  }
}

/* roulang page: article */
:root{
  --ice-950:#061326;
  --ice-900:#0A1D3A;
  --ice-800:#10294A;
  --ice-700:#1B3B66;
  --ice-100:#D6E6FF;
  --ice-50:#F0F7FF;
  --accent-cyan:#22D3EE;
  --accent-cyan-dim:rgba(34,211,238,0.18);
  --accent-red:#FF4D6D;
  --accent-red-dim:rgba(255,77,109,0.15);
  --warm-yellow:#FFC857;
  --glass-bg:rgba(16,41,74,0.42);
  --glass-border:rgba(214,230,255,0.14);
  --glass-highlight:rgba(255,255,255,0.08);
  --shadow-card:0 16px 40px -12px rgba(0,8,20,0.6);
  --shadow-glow-cyan:0 0 30px -4px rgba(34,211,238,0.45);
  --shadow-glow-red:0 0 30px -6px rgba(255,77,109,0.4);
  --grad-cta:linear-gradient(135deg,#22D3EE 0%,#0891B2 100%);
  --grad-cta-hot:linear-gradient(135deg,#FF4D6D 0%,#E11D48 100%);
  --font-main:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-main);
  background:var(--ice-950);
  color:var(--ice-50);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:'';
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:url('/assets/images/backpic/back-1.png') no-repeat center top / cover;
  opacity:.05;
}
img{max-width:100%;display:block}
a{color:var(--accent-cyan);text-decoration:none;transition:color .2s}
a:hover{color:var(--accent-cyan)}
ul,ol{list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;line-height:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--accent-cyan);
  outline-offset:2px;
  border-radius:4px;
}
.container{max-width:1280px;margin:0 auto;padding:0 32px}
.top-bar{
  height:36px;
  background:var(--ice-900);
  border-bottom:1px solid var(--ice-700);
  display:flex;
  align-items:center;
  font-size:0.75rem;
  color:var(--ice-100);
}
.top-bar .container{display:flex;justify-content:space-between;align-items:center;gap:16px}
.top-bar-links{display:flex;align-items:center;gap:16px}
.top-bar-links a{color:var(--ice-100)}
.top-bar-links a:hover{color:var(--accent-cyan)}
.top-phone{color:var(--ice-50);font-weight:600;font-variant-numeric:tabular-nums}
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  height:72px;
  background:rgba(6,19,38,0.85);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--glass-border);
  transition:height .3s ease,background .3s ease;
}
.site-header.scrolled{
  height:64px;
  background:rgba(6,19,38,0.92);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:100%;
  gap:16px;
}
.nav-left,.nav-right{display:flex;align-items:center;gap:6px;flex:1}
.nav-right{justify-content:flex-end}
.nav-link{
  color:var(--ice-100);
  font-size:0.9375rem;
  font-weight:500;
  padding:8px 14px;
  border-radius:8px;
  position:relative;
  transition:color .2s,background .2s;
  white-space:nowrap;
}
.nav-link:hover{color:var(--accent-cyan);background:var(--accent-cyan-dim)}
.nav-link.active{color:var(--accent-cyan)}
.nav-link.active::after{
  content:'';
  position:absolute;
  left:14px;
  right:14px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--accent-cyan);
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  padding:6px 20px;
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:999px;
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  flex-shrink:0;
  transition:border-color .2s,box-shadow .2s;
}
.logo:hover{border-color:rgba(34,211,238,0.4);box-shadow:var(--shadow-glow-cyan)}
.logo-icon{width:32px;height:32px}
.logo-text{font-size:1.2rem;font-weight:700;color:var(--ice-50);white-space:nowrap;letter-spacing:0.02em}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 24px;
  border-radius:999px;
  font-weight:600;
  font-size:0.9375rem;
  cursor:pointer;
  border:1px solid transparent;
  transition:all .25s ease;
  min-height:44px;
  white-space:nowrap;
}
.btn-cta{
  background:var(--grad-cta);
  color:#fff;
  box-shadow:var(--shadow-glow-cyan);
}
.btn-cta:hover{
  transform:translateY(-2px);
  box-shadow:0 0 40px -2px rgba(34,211,238,0.6);
  color:#fff;
}
.btn-cta:active{
  transform:translateY(0) scale(0.98);
}
.btn-outline{
  background:transparent;
  border-color:var(--glass-border);
  color:var(--ice-100);
}
.btn-outline:hover{border-color:var(--accent-cyan);color:var(--accent-cyan);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(0) scale(0.98)}
.btn-sm{height:38px;padding:0 18px;font-size:0.875rem;min-height:38px}
.menu-toggle{
  display:none;
  background:none;
  border:0;
  color:var(--ice-50);
  cursor:pointer;
  padding:8px;
  border-radius:8px;
  transition:background .2s;
}
.menu-toggle:hover{background:rgba(255,255,255,0.06)}
.menu-toggle svg{width:24px;height:24px}
.mobile-drawer{
  position:fixed;
  top:0;
  right:-100%;
  width:80%;
  max-width:340px;
  height:100%;
  background:rgba(6,19,38,0.97);
  backdrop-filter:blur(24px);
  -webkit-backdrop-filter:blur(24px);
  z-index:1000;
  transition:right .35s cubic-bezier(0.4,0,0.2,1);
  border-left:1px solid var(--glass-border);
  padding:32px 24px;
  display:flex;
  flex-direction:column;
  gap:6px;
  overflow-y:auto;
}
.mobile-drawer.open{right:0}
.mobile-drawer a{
  color:var(--ice-100);
  font-size:1.125rem;
  padding:14px 10px;
  border-radius:10px;
  transition:color .2s,background .2s;
}
.mobile-drawer a:hover,.mobile-drawer a.active{color:var(--accent-cyan);background:var(--accent-cyan-dim)}
.mobile-drawer .btn{margin-top:16px;width:100%}
.drawer-overlay{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,0.6);
  z-index:999;
  opacity:0;
  visibility:hidden;
  transition:opacity .3s,visibility .3s;
}
.drawer-overlay.show{opacity:1;visibility:visible}
.breadcrumb-wrap{
  padding:20px 0 4px;
  background:var(--ice-950);
  border-bottom:1px solid rgba(214,230,255,0.06);
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:0.75rem;
  color:var(--ice-100);
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--ice-100)}
.breadcrumb a:hover{color:var(--accent-cyan)}
.breadcrumb .sep{color:var(--accent-cyan);font-weight:700}
.breadcrumb .current{color:var(--ice-50);font-weight:600}
.article-main{
  padding:32px 0 72px;
  background:var(--ice-950);
}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,8fr) minmax(0,4fr);
  gap:32px;
  align-items:start;
}
.article-content{
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:20px;
  padding:40px 44px;
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  box-shadow:var(--shadow-card);
  position:relative;
  overflow:hidden;
}
.article-content::before{
  content:'';
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:40%;
  background:linear-gradient(180deg,var(--glass-highlight),transparent);
  border-radius:20px 20px 0 0;
  pointer-events:none;
}
.article-title{
  font-size:clamp(1.5rem,3vw,2.125rem);
  line-height:1.3;
  color:var(--ice-50);
  font-weight:700;
  margin-bottom:20px;
  position:relative;
}
.article-meta{
  display:flex;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  padding-bottom:20px;
  margin-bottom:28px;
  border-bottom:1px solid var(--glass-border);
  font-size:0.75rem;
  color:var(--ice-100);
  position:relative;
}
.meta-item{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-variant-numeric:tabular-nums;
}
.meta-item svg{width:14px;height:14px;color:var(--accent-cyan);flex-shrink:0}
.badge{
  display:inline-flex;
  align-items:center;
  background:var(--accent-cyan-dim);
  color:var(--accent-cyan);
  font-size:0.75rem;
  font-weight:600;
  padding:4px 10px;
  border-radius:8px;
}
.article-cover{
  margin-bottom:28px;
  border-radius:16px;
  overflow:hidden;
  border:1px solid var(--glass-border);
  position:relative;
}
.article-cover img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
}
.cms-post-content{
  max-width:720px;
  position:relative;
  color:var(--ice-100);
}
.cms-post-content p{
  color:var(--ice-100);
  font-size:1.0625rem;
  line-height:1.9;
  margin-bottom:1.25em;
}
.cms-post-content h2{
  color:var(--ice-50);
  font-size:1.5rem;
  margin:2em 0 0.75em;
  line-height:1.3;
  padding-left:14px;
  border-left:3px solid var(--accent-cyan);
}
.cms-post-content h3{
  color:var(--ice-50);
  font-size:1.25rem;
  margin:1.75em 0 0.6em;
  line-height:1.35;
}
.cms-post-content ul,.cms-post-content ol{
  margin-bottom:1.25em;
  padding-left:24px;
  color:var(--ice-100);
}
.cms-post-content ul li{list-style:disc;margin-bottom:0.4em}
.cms-post-content ol li{list-style:decimal;margin-bottom:0.4em}
.cms-post-content blockquote{
  border-left:3px solid var(--accent-cyan);
  background:var(--accent-cyan-dim);
  padding:14px 20px;
  border-radius:0 12px 12px 0;
  margin-bottom:1.25em;
  color:var(--ice-50);
}
.cms-post-content img{
  border-radius:12px;
  margin:1.5em 0;
  max-width:100%;
  height:auto;
}
.cms-post-content a{color:var(--accent-cyan);text-decoration:underline;text-underline-offset:2px}
.cms-post-content a:hover{color:#67e8f9}
.cms-post-content table{
  width:100%;
  border-collapse:collapse;
  margin:1.25em 0;
  background:rgba(255,255,255,0.02);
}
.cms-post-content th{
  background:var(--ice-800);
  color:var(--ice-50);
  padding:10px 14px;
  text-align:left;
  font-weight:600;
}
.cms-post-content td{
  padding:10px 14px;
  border-bottom:1px solid var(--glass-border);
  color:var(--ice-100);
}
.cms-post-content code{
  background:rgba(255,255,255,0.08);
  padding:2px 8px;
  border-radius:6px;
  font-size:0.9em;
  color:#8be9fd;
}
.cms-post-content pre{
  background:var(--ice-900);
  border:1px solid var(--glass-border);
  border-radius:12px;
  padding:20px;
  overflow-x:auto;
  margin:1.25em 0;
}
.cms-post-content pre code{background:none;padding:0}
.article-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:36px;
  padding-top:24px;
  border-top:1px solid var(--glass-border);
  position:relative;
}
.article-tag{
  display:inline-flex;
  align-items:center;
  height:32px;
  padding:0 14px;
  background:var(--accent-cyan-dim);
  color:var(--accent-cyan);
  border-radius:999px;
  font-size:0.75rem;
  font-weight:600;
  transition:all .2s;
}
.article-tag:hover{
  background:var(--accent-cyan);
  color:var(--ice-950);
  transform:translateY(-2px);
}
.article-share{
  display:flex;
  align-items:center;
  gap:10px;
  margin-top:24px;
  flex-wrap:wrap;
  position:relative;
}
.article-share>span{color:var(--ice-100);font-size:0.8125rem}
.share-btn{
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 16px;
  border:1px solid var(--glass-border);
  border-radius:999px;
  color:var(--ice-100);
  font-size:0.8125rem;
  transition:all .2s;
  background:rgba(255,255,255,0.02);
}
.share-btn:hover{
  border-color:var(--accent-cyan);
  color:var(--accent-cyan);
  transform:translateY(-2px);
}
.article-pager{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  margin-top:36px;
  position:relative;
}
.pager-card{
  display:block;
  background:rgba(255,255,255,0.02);
  border:1px solid var(--glass-border);
  border-radius:14px;
  padding:16px 20px;
  transition:all .25s;
}
.pager-card:hover{
  border-color:var(--accent-cyan);
  transform:translateY(-3px);
  box-shadow:var(--shadow-card);
}
.pager-label{
  display:block;
  font-size:0.75rem;
  color:var(--accent-cyan);
  margin-bottom:6px;
  font-weight:600;
}
.pager-title{
  color:var(--ice-50);
  font-size:0.9375rem;
  font-weight:500;
  line-height:1.5;
  overflow:hidden;
  text-overflow:ellipsis;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
}
.pager-next{text-align:right}
.article-sidebar{
  display:flex;
  flex-direction:column;
  gap:24px;
  position:sticky;
  top:100px;
}
.sidebar-card{
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:16px;
  padding:24px;
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  position:relative;
  overflow:hidden;
}
.sidebar-card::before{
  content:'';
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:35%;
  background:linear-gradient(180deg,var(--glass-highlight),transparent);
  pointer-events:none;
}
.sidebar-card h3{
  font-size:1.0625rem;
  color:var(--ice-50);
  margin-bottom:14px;
  padding-bottom:12px;
  border-bottom:1px solid var(--glass-border);
  position:relative;
}
.sidebar-news-list li{
  display:flex;
  align-items:center;
  gap:12px;
  padding:10px 0;
  border-bottom:1px solid rgba(214,230,255,0.06);
}
.sidebar-news-list li:last-child{border-bottom:none;padding-bottom:0}
.sidebar-news-list img{
  width:72px;
  height:48px;
  object-fit:cover;
  border-radius:10px;
  flex-shrink:0;
  transition:transform .3s;
}
.sidebar-news-list a{
  color:var(--ice-100);
  font-size:0.875rem;
  line-height:1.5;
  overflow:hidden;
  text-overflow:ellipsis;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
}
.sidebar-news-list a:hover{color:var(--accent-cyan)}
.sidebar-news-list li:hover img{transform:scale(1.05)}
.tag-cloud{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  position:relative;
}
.tag-cloud a{
  display:inline-flex;
  align-items:center;
  height:30px;
  padding:0 12px;
  background:rgba(255,255,255,0.04);
  border:1px solid var(--glass-border);
  border-radius:999px;
  color:var(--ice-100);
  font-size:0.75rem;
  transition:all .2s;
}
.tag-cloud a:hover{
  border-color:var(--accent-cyan);
  color:var(--accent-cyan);
  transform:translateY(-2px);
}
.sidebar-contact p{
  color:var(--ice-100);
  font-size:0.875rem;
  margin-bottom:14px;
  line-height:1.6;
  position:relative;
}
.sidebar-contact .btn{width:100%}
.not-found{
  padding:80px 20px;
  text-align:center;
  position:relative;
}
.not-found h1{
  font-size:1.75rem;
  color:var(--ice-50);
  margin-bottom:12px;
  font-weight:700;
}
.not-found p{
  color:var(--ice-100);
  margin-bottom:28px;
  font-size:1rem;
}
.related-posts{
  padding:72px 0;
  background:var(--ice-900);
  border-top:1px solid var(--ice-700);
  position:relative;
}
.related-posts::before{
  content:'';
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--accent-cyan),transparent);
  opacity:0.3;
}
.section-title{
  font-size:clamp(1.5rem,2.5vw,2rem);
  color:var(--ice-50);
  text-align:center;
  margin-bottom:40px;
  font-weight:700;
}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.related-card{
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:16px;
  overflow:hidden;
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  transition:all .3s;
  display:block;
}
.related-card:hover{
  transform:translateY(-6px);
  border-color:rgba(34,211,238,0.4);
  box-shadow:var(--shadow-card);
}
.related-cover{
  overflow:hidden;
  aspect-ratio:16/9;
}
.related-cover img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .4s;
}
.related-card:hover .related-cover img{transform:scale(1.05)}
.related-body{
  padding:20px;
}
.related-body .badge{
  display:inline-block;
  padding:4px 10px;
  margin-bottom:10px;
}
.related-body h3{
  font-size:1rem;
  color:var(--ice-50);
  line-height:1.5;
  font-weight:600;
  margin-bottom:10px;
  overflow:hidden;
  text-overflow:ellipsis;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
}
.related-date{
  font-size:0.75rem;
  color:var(--ice-100);
  font-variant-numeric:tabular-nums;
}
.site-footer{
  background:var(--ice-900);
  border-top:1px solid var(--ice-700);
}
.footer-grid{
  display:grid;
  grid-template-columns:4fr 4fr 4fr;
  gap:40px;
  padding:56px 0 40px;
}
.footer-logo{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.footer-logo .logo-icon{width:36px;height:36px}
.footer-logo .logo-text{font-size:1.25rem;font-weight:700;color:var(--ice-50)}
.footer-desc{
  color:var(--ice-100);
  font-size:0.875rem;
  line-height:1.7;
  margin-bottom:16px;
  max-width:340px;
}
.footer-trust{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--accent-cyan);
  font-size:0.75rem;
  border:1px solid var(--glass-border);
  border-radius:999px;
  padding:6px 14px;
  background:rgba(255,255,255,0.02);
}
.footer-trust svg{width:14px;height:14px}
.footer-col h4{
  color:var(--ice-50);
  font-size:1rem;
  margin-bottom:16px;
  font-weight:600;
}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{
  color:var(--ice-100);
  font-size:0.875rem;
  transition:color .2s;
}
.footer-col ul li a:hover{color:var(--accent-cyan)}
.footer-contact li{
  display:flex;
  align-items:center;
  gap:8px;
  color:var(--ice-100);
  font-size:0.875rem;
}
.footer-contact svg{
  width:16px;
  height:16px;
  color:var(--accent-cyan);
  flex-shrink:0;
}
.footer-bottom{
  border-top:1px solid var(--ice-700);
  padding:20px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  color:var(--ice-100);
  font-size:0.8125rem;
  flex-wrap:wrap;
  gap:12px;
}
.footer-bottom-links{display:flex;gap:20px}
.footer-bottom-links a{color:var(--ice-100)}
.footer-bottom-links a:hover{color:var(--accent-cyan)}
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px}
  .nav-link{padding:8px 10px}
}
@media (max-width:991px){
  .article-layout{grid-template-columns:1fr}
  .article-sidebar{display:none}
  .footer-grid{grid-template-columns:1fr 1fr}
  .related-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .top-bar{display:none}
  .site-header{height:64px}
  .nav-left,.nav-right{display:none}
  .menu-toggle{display:inline-flex}
  .container{padding:0 16px}
  .header-inner{gap:12px}
  .logo{padding:4px 14px}
  .logo-icon{width:28px;height:28px}
  .logo-text{font-size:1rem}
  .article-main{padding:20px 0 48px}
  .article-content{padding:24px 18px}
  .article-title{font-size:1.5rem;margin-bottom:14px}
  .article-meta{gap:10px;padding-bottom:14px;margin-bottom:20px}
  .article-cover{margin-bottom:20px}
  .cms-post-content p{font-size:1rem;line-height:1.8}
  .article-pager{grid-template-columns:1fr}
  .pager-next{text-align:left}
  .breadcrumb-wrap{padding:14px 0 0}
  .related-posts{padding:48px 0}
  .related-grid{grid-template-columns:1fr}
  .section-title{margin-bottom:24px}
  .footer-grid{
    grid-template-columns:1fr;
    gap:32px;
    padding:40px 0 24px;
  }
  .footer-bottom{
    flex-direction:column;
    text-align:center;
  }
}
@media (max-width:520px){
  .article-content{border-radius:16px}
  .article-title{font-size:1.375rem}
  .cms-post-content h2{font-size:1.25rem}
  .article-meta .meta-item:last-child{display:none}
  .related-body{padding:16px}
}

/* roulang page: category2 */
:root{
  --ice-950:#061326;
  --ice-900:#0A1D3A;
  --ice-800:#10294A;
  --ice-700:#1B3B66;
  --ice-100:#D6E6FF;
  --ice-50:#F0F7FF;
  --accent-cyan:#22D3EE;
  --accent-cyan-dim:rgba(34,211,238,0.18);
  --accent-red:#FF4D6D;
  --accent-red-dim:rgba(255,77,109,0.15);
  --warm-yellow:#FFC857;
  --glass-bg:rgba(16,41,74,0.42);
  --glass-border:rgba(214,230,255,0.14);
  --glass-highlight:rgba(255,255,255,0.08);
  --shadow-card:0 16px 40px -12px rgba(0,8,20,0.6);
  --shadow-hover:0 24px 50px -10px rgba(0,8,20,0.7);
  --shadow-glow-cyan:0 0 30px -4px rgba(34,211,238,0.45);
  --shadow-glow-red:0 0 30px -6px rgba(255,77,109,0.4);
  --grad-cta:linear-gradient(135deg,#22D3EE 0%,#0891B2 100%);
  --grad-cta-hot:linear-gradient(135deg,#FF4D6D 0%,#E11D48 100%);
  --grad-ice-glow:linear-gradient(120deg,rgba(34,211,238,0.06) 0%,rgba(255,77,109,0.05) 100%);
  --radius-card:20px;
  --radius-sm:12px;
  --radius-pill:999px;
  --container:1280px;
  --font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{
  box-sizing:border-box;
  margin:0;
  padding:0;
}
html{
  scroll-behavior:smooth;
}
body{
  font-family:var(--font-family);
  font-size:1rem;
  line-height:1.75;
  color:var(--ice-50);
  background:var(--ice-950);
  background-image:radial-gradient(ellipse at 10% 0%,rgba(34,211,238,0.06) 0%,transparent 45%),
                   radial-gradient(ellipse at 90% 20%,rgba(255,77,109,0.05) 0%,transparent 40%);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{
  color:var(--accent-cyan);
  text-decoration:none;
  transition:color .25s ease;
}
a:hover{
  color:var(--ice-50);
}
img{
  display:block;
  max-width:100%;
  height:auto;
}
button,input,select,textarea{
  font-family:inherit;
  font-size:inherit;
  color:inherit;
}
ul{
  list-style:none;
}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
@media(max-width:768px){
  .container{
    padding-left:16px;
    padding-right:16px;
  }
}
.topbar{
  background:rgba(6,19,38,0.9);
  border-bottom:1px solid rgba(214,230,255,0.07);
  height:36px;
  display:flex;
  align-items:center;
}
.topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:0.75rem;
  color:var(--ice-100);
  opacity:0.85;
}
.topbar-inner a{
  margin-left:16px;
  font-size:0.75rem;
  color:var(--ice-100);
}
.topbar-inner a:hover{
  color:var(--accent-cyan);
}
.topbar-divider{
  margin:0 4px;
  opacity:0.4;
}
@media(max-width:768px){
  .topbar{
    display:none;
  }
}
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(10,29,58,0.9);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(214,230,255,0.1);
  transition:box-shadow .3s ease,background .3s ease;
}
.site-header.scrolled{
  background:rgba(6,19,38,0.92);
  box-shadow:0 10px 30px -12px rgba(0,8,20,0.5);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
  gap:24px;
  position:relative;
  transition:height .25s ease;
}
.site-header.scrolled .header-inner{
  height:64px;
}
.nav-left,.nav-right{
  display:flex;
  align-items:center;
  gap:4px;
  flex:1;
}
.nav-right{
  justify-content:flex-end;
}
.nav-link{
  padding:8px 18px;
  font-size:0.9375rem;
  font-weight:500;
  color:var(--ice-100);
  border-radius:var(--radius-pill);
  position:relative;
  transition:color .25s ease,background .25s ease;
}
.nav-link:hover{
  color:var(--accent-cyan);
  background:rgba(34,211,238,0.07);
}
.nav-link.active{
  color:var(--accent-cyan);
}
.nav-link.active::after{
  content:'';
  position:absolute;
  left:50%;
  bottom:2px;
  transform:translateX(-50%);
  width:20px;
  height:2px;
  background:var(--accent-cyan);
  border-radius:2px;
  box-shadow:0 0 10px rgba(34,211,238,0.6);
}
.logo-center{
  display:flex;
  align-items:center;
  gap:12px;
  padding:6px 18px;
  background:rgba(16,41,74,0.4);
  border:1px solid var(--glass-border);
  border-radius:14px;
  box-shadow:0 8px 20px -8px rgba(0,8,20,0.5);
  flex-shrink:0;
  transition:transform .3s ease,box-shadow .3s ease;
}
.logo-center:hover{
  transform:translateY(-1px);
  box-shadow:0 12px 28px -8px rgba(34,211,238,0.2);
  border-color:rgba(34,211,238,0.3);
}
.logo-icon{
  width:32px;
  height:32px;
}
.logo-text{
  font-size:1.25rem;
  font-weight:700;
  color:var(--ice-50);
  letter-spacing:0.5px;
  white-space:nowrap;
}
.btn-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:38px;
  padding:0 20px;
  background:var(--grad-cta);
  color:#fff;
  font-size:0.875rem;
  font-weight:600;
  border-radius:var(--radius-pill);
  box-shadow:var(--shadow-glow-cyan);
  transition:transform .25s ease,box-shadow .25s ease,filter .25s ease;
}
.btn-cta:hover{
  transform:translateY(-2px);
  color:#fff;
  box-shadow:0 8px 28px -4px rgba(34,211,238,0.55);
  filter:brightness(1.05);
}
.btn-cta:active{
  transform:translateY(0);
  filter:brightness(0.96);
}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  background:rgba(16,41,74,0.5);
  border:1px solid var(--glass-border);
  border-radius:12px;
  cursor:pointer;
  align-items:center;
  justify-content:center;
  color:var(--ice-50);
}
.nav-toggle:hover{
  border-color:var(--accent-cyan);
}
.nav-toggle svg{
  width:22px;
  height:22px;
}
@media(max-width:1024px){
  .nav-left .nav-link,
  .nav-right .nav-link{
    padding:8px 12px;
    font-size:0.8125rem;
  }
  .btn-cta{
    padding:0 14px;
    font-size:0.8125rem;
  }
  .logo-text{
    font-size:1.0625rem;
  }
}
@media(max-width:768px){
  .nav-left,.nav-right{
    display:none;
  }
  .nav-toggle{
    display:flex;
  }
  .header-inner{
    height:64px;
  }
  .site-header.scrolled .header-inner{
    height:60px;
  }
  .logo-center{
    padding:5px 12px;
    margin:0 auto;
  }
  .logo-text{
    font-size:1rem;
  }
}
.mobile-drawer{
  position:fixed;
  top:0;
  right:0;
  width:320px;
  height:100%;
  background:rgba(10,29,58,0.96);
  backdrop-filter:blur(24px);
  -webkit-backdrop-filter:blur(24px);
  border-left:1px solid var(--glass-border);
  z-index:200;
  padding:24px 20px;
  transform:translateX(100%);
  transition:transform .35s ease;
  display:flex;
  flex-direction:column;
  box-shadow:-20px 0 60px rgba(0,0,0,0.4);
}
.mobile-drawer.open{
  transform:translateX(0);
}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:28px;
}
.drawer-close{
  width:36px;
  height:36px;
  background:rgba(16,41,74,0.6);
  border:1px solid var(--glass-border);
  border-radius:10px;
  cursor:pointer;
  color:var(--ice-50);
  display:flex;
  align-items:center;
  justify-content:center;
}
.drawer-close:hover{
  border-color:var(--accent-cyan);
}
.drawer-links{
  display:flex;
  flex-direction:column;
  gap:6px;
}
.drawer-links a{
  display:block;
  padding:14px 16px;
  font-size:1.0625rem;
  color:var(--ice-100);
  border-radius:12px;
  transition:background .2s ease,color .2s ease;
}
.drawer-links a:hover{
  background:rgba(34,211,238,0.08);
  color:var(--accent-cyan);
}
.drawer-links a.active{
  color:var(--accent-cyan);
  background:rgba(34,211,238,0.12);
}
.drawer-cta{
  margin-top:auto;
  display:block;
  text-align:center;
  padding:14px 24px;
  background:var(--grad-cta-hot);
  color:#fff;
  font-weight:600;
  border-radius:var(--radius-pill);
  box-shadow:var(--shadow-glow-red);
}
.drawer-cta:hover{
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 8px 30px -4px rgba(255,77,109,0.5);
}
.drawer-backdrop{
  position:fixed;
  inset:0;
  background:rgba(3,10,20,0.6);
  backdrop-filter:blur(4px);
  z-index:150;
  opacity:0;
  pointer-events:none;
  transition:opacity .35s ease;
}
.drawer-backdrop.active{
  opacity:1;
  pointer-events:auto;
}
body.drawer-open{
  overflow:hidden;
}
.category-hero{
  position:relative;
  padding:clamp(4rem,8vw,6.5rem) 0 clamp(3rem,6vw,5rem);
  overflow:hidden;
  background:var(--ice-950);
}
.category-hero::before{
  content:'';
  position:absolute;
  top:-20%;
  right:-10%;
  width:600px;
  height:600px;
  background:radial-gradient(circle,rgba(139,92,246,0.16) 0%,transparent 65%);
  pointer-events:none;
  z-index:1;
}
.category-hero::after{
  content:'';
  position:absolute;
  bottom:-30%;
  left:10%;
  width:400px;
  height:400px;
  background:radial-gradient(circle,rgba(34,211,238,0.12) 0%,transparent 60%);
  pointer-events:none;
  z-index:1;
}
.hero-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  opacity:0.3;
  z-index:0;
}
.hero-overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(110deg,rgba(6,19,38,0.92) 0%,rgba(6,19,38,0.55) 55%,rgba(6,19,38,0.35) 100%);
  z-index:1;
}
.hero-content{
  position:relative;
  z-index:2;
  max-width:760px;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 16px;
  background:var(--accent-red-dim);
  border:1px solid rgba(255,77,109,0.3);
  border-radius:var(--radius-pill);
  color:var(--accent-red);
  font-size:0.8125rem;
  font-weight:600;
  letter-spacing:0.3px;
  margin-bottom:20px;
}
.hero-badge svg{
  width:16px;
  height:16px;
}
.category-hero h1{
  font-size:clamp(2rem,4.2vw,3rem);
  line-height:1.18;
  font-weight:800;
  color:var(--ice-50);
  margin-bottom:16px;
  letter-spacing:-0.3px;
}
.hero-subtitle{
  font-size:clamp(1rem,1.6vw,1.1875rem);
  line-height:1.7;
  color:var(--ice-100);
  max-width:600px;
  margin-bottom:32px;
}
.hero-actions{
  display:flex;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  margin-bottom:44px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:48px;
  padding:0 28px;
  font-size:0.9375rem;
  font-weight:600;
  border-radius:var(--radius-pill);
  border:none;
  cursor:pointer;
  transition:transform .25s ease,box-shadow .25s ease,filter .25s ease;
}
.btn:hover{
  transform:translateY(-2px);
}
.btn:active{
  transform:translateY(0);
  filter:brightness(0.94);
}
.btn-hot{
  background:var(--grad-cta-hot);
  color:#fff;
  box-shadow:var(--shadow-glow-red);
}
.btn-hot:hover{
  color:#fff;
  box-shadow:0 8px 32px -4px rgba(255,77,109,0.55);
}
.btn-ghost{
  background:rgba(255,255,255,0.04);
  border:1px solid var(--glass-border);
  color:var(--ice-100);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{
  border-color:var(--accent-cyan);
  color:var(--accent-cyan);
  box-shadow:var(--shadow-glow-cyan);
}
.btn-cyan{
  background:var(--grad-cta);
  color:#fff;
  box-shadow:var(--shadow-glow-cyan);
}
.btn-cyan:hover{
  color:#fff;
  box-shadow:0 8px 30px -4px rgba(34,211,238,0.55);
}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:0;
  border-top:1px solid var(--glass-border);
  padding-top:28px;
}
.stat-item{
  padding-right:40px;
  margin-right:40px;
  border-right:1px solid rgba(214,230,255,0.12);
}
.stat-item:last-child{
  border-right:none;
  margin-right:0;
  padding-right:0;
}
.stat-num{
  font-family:var(--font-family);
  font-variant-numeric:tabular-nums;
  font-size:1.75rem;
  font-weight:800;
  color:var(--ice-50);
  line-height:1.1;
}
.stat-num em{
  font-style:normal;
  color:var(--accent-cyan);
  font-size:1.125rem;
}
.stat-label{
  font-size:0.875rem;
  color:var(--ice-100);
  opacity:0.75;
  margin-top:4px;
}
@media(max-width:768px){
  .hero-stats{
    gap:20px 0;
  }
  .stat-item{
    padding-right:20px;
    margin-right:20px;
  }
  .stat-num{
    font-size:1.375rem;
  }
}
.section{
  padding:clamp(3rem,6vw,5rem) 0;
}
.section-head{
  text-align:center;
  max-width:680px;
  margin:0 auto clamp(2rem,4vw,3.5rem);
}
.section-head .section-tag{
  display:inline-block;
  padding:5px 14px;
  background:var(--accent-cyan-dim);
  color:var(--accent-cyan);
  border-radius:8px;
  font-size:0.8125rem;
  font-weight:700;
  letter-spacing:0.4px;
  margin-bottom:14px;
}
.section-head h2{
  font-size:clamp(1.75rem,3vw,2.25rem);
  line-height:1.25;
  font-weight:800;
  color:var(--ice-50);
  margin-bottom:12px;
  letter-spacing:-0.3px;
}
.section-head p{
  color:var(--ice-100);
  font-size:1rem;
  line-height:1.7;
  opacity:0.85;
}
.offers-section{
  background:var(--grad-ice-glow);
}
.offers-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  align-items:stretch;
}
.offer-card{
  position:relative;
  background:var(--glass-bg);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-card);
  padding:32px 28px;
  overflow:hidden;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
  display:flex;
  flex-direction:column;
}
.offer-card::before{
  content:'';
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:42%;
  background:linear-gradient(180deg,var(--glass-highlight),transparent);
  pointer-events:none;
  z-index:1;
}
.offer-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-hover),0 0 0 rgba(34,211,238,0);
  border-color:rgba(34,211,238,0.35);
}
.offer-card.featured{
  transform:scale(1.03);
  border-color:rgba(255,77,109,0.35);
  box-shadow:var(--shadow-card),0 0 24px -6px rgba(255,77,109,0.25);
}
.offer-card.featured:hover{
  transform:scale(1.03) translateY(-6px);
  box-shadow:var(--shadow-hover),0 0 32px -6px rgba(255,77,109,0.3);
}
.offer-hot{
  position:absolute;
  top:16px;
  right:-38px;
  transform:rotate(6deg);
  background:var(--accent-red);
  color:#fff;
  font-size:0.75rem;
  font-weight:700;
  padding:6px 44px;
  z-index:2;
  box-shadow:0 4px 16px rgba(255,77,109,0.4);
}
.offer-top{
  display:flex;
  align-items:center;
  gap:14px;
  margin-bottom:20px;
}
.offer-icon{
  width:54px;
  height:54px;
  border-radius:16px;
  background:var(--accent-cyan-dim);
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--accent-cyan);
  flex-shrink:0;
}
.offer-icon.hot{
  background:var(--accent-red-dim);
  color:var(--accent-red);
}
.offer-icon svg{
  width:28px;
  height:28px;
}
.offer-name{
  font-size:1.25rem;
  font-weight:700;
  color:var(--ice-50);
}
.offer-tag{
  display:inline-flex;
  align-items:center;
  gap:4px;
  font-size:0.75rem;
  color:var(--warm-yellow);
  background:rgba(255,200,87,0.12);
  padding:3px 10px;
  border-radius:6px;
  margin-top:6px;
  font-weight:600;
}
.offer-value{
  font-variant-numeric:tabular-nums;
  font-size:2.75rem;
  font-weight:800;
  line-height:1;
  color:var(--ice-50);
  margin-bottom:12px;
  letter-spacing:-1px;
}
.offer-value .unit{
  font-size:1rem;
  font-weight:600;
  color:var(--accent-red);
  margin-left:4px;
}
.offer-desc{
  font-size:0.9375rem;
  line-height:1.7;
  color:var(--ice-100);
  opacity:0.82;
  margin-bottom:24px;
  flex-grow:1;
}
.offer-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:0 24px;
  border-radius:var(--radius-pill);
  font-size:0.875rem;
  font-weight:600;
  background:rgba(255,255,255,0.06);
  border:1px solid var(--glass-border);
  color:var(--ice-100);
  transition:all .25s ease;
}
.offer-btn:hover{
  border-color:var(--accent-cyan);
  color:var(--accent-cyan);
  box-shadow:var(--shadow-glow-cyan);
}
.offer-card.featured .offer-btn{
  background:var(--grad-cta-hot);
  border:none;
  color:#fff;
  box-shadow:var(--shadow-glow-red);
}
.offer-card.featured .offer-btn:hover{
  transform:translateY(-2px);
  filter:brightness(1.05);
}
@media(max-width:1024px){
  .offers-grid{
    grid-template-columns:1fr;
    max-width:520px;
    margin:0 auto;
  }
  .offer-card.featured{
    transform:scale(1);
  }
  .offer-card.featured:hover{
    transform:translateY(-6px);
  }
}
.steps-section{
  background:var(--ice-900);
}
.steps-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  counter-reset:step;
  max-width:1100px;
  margin:0 auto;
}
.step-card{
  position:relative;
  text-align:center;
  background:rgba(16,41,74,0.4);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-card);
  padding:40px 28px 32px;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.step-card::before{
  content:'';
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:40%;
  background:linear-gradient(180deg,var(--glass-highlight),transparent);
  border-radius:var(--radius-card) var(--radius-card) 0 0;
  pointer-events:none;
}
.step-card:hover{
  transform:translateY(-6px);
  border-color:rgba(34,211,238,0.35);
  box-shadow:var(--shadow-hover);
}
.step-num{
  counter-increment:step;
  font-variant-numeric:tabular-nums;
  font-size:1rem;
  font-weight:800;
  width:48px;
  height:48px;
  margin:0 auto 20px;
  background:var(--grad-cta);
  color:#fff;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:var(--shadow-glow-cyan);
  position:relative;
  z-index:1;
}
.step-card:nth-child(2) .step-num{
  background:var(--grad-cta-hot);
  box-shadow:var(--shadow-glow-red);
}
.step-icon{
  width:38px;
  height:38px;
  margin:0 auto 14px;
  color:var(--accent-cyan);
}
.step-card:nth-child(2) .step-icon{
  color:var(--accent-red);
}
.step-card h3{
  font-size:1.125rem;
  font-weight:700;
  color:var(--ice-50);
  margin-bottom:10px;
}
.step-card p{
  font-size:0.9375rem;
  line-height:1.7;
  color:var(--ice-100);
  opacity:0.8;
  max-width:280px;
  margin:0 auto;
}
@media(max-width:1024px){
  .steps-grid{
    grid-template-columns:1fr;
    max-width:480px;
  }
}
.rules-section{
  background:var(--ice-950);
}
.rules-wrap{
  max-width:760px;
  margin:0 auto;
}
.rules-item{
  background:var(--glass-bg);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border:1px solid var(--glass-border);
  border-radius:16px;
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .3s ease,box-shadow .3s ease;
}
.rules-item:hover{
  border-color:rgba(34,211,238,0.25);
}
.rules-item.open{
  border-color:rgba(34,211,238,0.4);
  box-shadow:var(--shadow-card);
}
.rules-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  background:transparent;
  border:none;
  cursor:pointer;
  text-align:left;
  font-size:1rem;
  font-weight:600;
  color:var(--ice-50);
  transition:color .25s ease;
}
.rules-q:hover{
  color:var(--accent-cyan);
}
.rules-icon{
  flex-shrink:0;
  width:28px;
  height:28px;
  border-radius:50%;
  background:rgba(34,211,238,0.12);
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--accent-cyan);
  transition:transform .3s ease,background .3s ease;
}
.rules-item.open .rules-icon{
  transform:rotate(45deg);
  background:var(--accent-cyan);
  color:#fff;
}
.rules-icon svg{
  width:16px;
  height:16px;
}
.rules-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease,padding .35s ease;
  padding:0 24px;
  color:var(--ice-100);
  font-size:0.9375rem;
  line-height:1.8;
  opacity:0.9;
}
.rules-item.open .rules-a{
  max-height:320px;
  padding:0 24px 20px;
}
.rules-a ul{
  padding-left:0;
  margin-top:8px;
}
.rules-a li{
  padding-left:18px;
  position:relative;
  margin-bottom:4px;
}
.rules-a li::before{
  content:'';
  position:absolute;
  left:2px;
  top:10px;
  width:6px;
  height:6px;
  background:var(--accent-cyan);
  border-radius:50%;
  opacity:0.7;
}
.cta-band{
  position:relative;
  text-align:center;
  padding:clamp(3rem,7vw,5.5rem) 0;
  background:var(--ice-900);
  overflow:hidden;
}
.cta-band::before{
  content:'';
  position:absolute;
  top:50%;
  left:50%;
  transform:translate(-50%,-50%);
  width:700px;
  height:300px;
  background:radial-gradient(ellipse,rgba(255,77,109,0.12) 0%,transparent 65%);
}
.cta-band::after{
  content:'';
  position:absolute;
  inset:0;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120' viewBox='0 0 120 120'%3E%3Cpath d='M30 0L45 15L60 0L75 15L90 0L105 15L120 0V120H0V0L15 15L30 0Z' fill='rgba(255,255,255,0.02)'/%3E%3C/svg%3E");
  background-size:120px 120px;
  opacity:0.5;
}
.cta-band .container{
  position:relative;
  z-index:1;
}
.cta-band h2{
  font-size:clamp(1.625rem,3vw,2.25rem);
  font-weight:800;
  color:var(--ice-50);
  margin-bottom:12px;
}
.cta-band p{
  color:var(--ice-100);
  opacity:0.85;
  font-size:1rem;
  margin-bottom:28px;
}
.cta-group{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:16px;
  flex-wrap:wrap;
}
.pulse{
  animation:pulse 2s infinite;
}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 0 rgba(255,77,109,0.45);}
  50%{box-shadow:0 0 0 10px rgba(255,77,109,0);}
}
.site-footer{
  background:var(--ice-900);
  border-top:1px solid var(--ice-700);
  padding-top:60px;
}
.footer-grid{
  display:grid;
  grid-template-columns:4fr 4fr 4fr;
  gap:40px;
  padding-bottom:40px;
}
.footer-logo{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:16px;
}
.footer-logo .logo-icon{
  width:36px;
  height:36px;
}
.footer-logo .logo-text{
  font-size:1.125rem;
  font-weight:700;
  color:var(--ice-50);
}
.footer-desc{
  font-size:0.9375rem;
  line-height:1.75;
  color:var(--ice-100);
  opacity:0.75;
  margin-bottom:18px;
  max-width:360px;
}
.footer-trust{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:0.875rem;
  color:var(--ice-100);
  opacity:0.9;
  padding:8px 14px;
  background:rgba(34,211,238,0.07);
  border:1px solid rgba(34,211,238,0.18);
  border-radius:10px;
}
.footer-trust svg{
  width:18px;
  height:18px;
  color:var(--accent-cyan);
}
.footer-col h4{
  font-size:0.9375rem;
  font-weight:700;
  color:var(--ice-50);
  margin-bottom:18px;
  letter-spacing:0.4px;
}
.footer-col ul li{
  margin-bottom:10px;
}
.footer-col ul a{
  color:var(--ice-100);
  opacity:0.75;
  font-size:0.9375rem;
  transition:opacity .25s ease,color .25s ease,padding-left .25s ease;
}
.footer-col ul a:hover{
  color:var(--accent-cyan);
  opacity:1;
  padding-left:4px;
}
.footer-contact li{
  display:flex;
  align-items:flex-start;
  gap:8px;
  font-size:0.9375rem;
  color:var(--ice-100);
  opacity:0.8;
  margin-bottom:12px;
  line-height:1.6;
}
.footer-contact svg{
  width:18px;
  height:18px;
  color:var(--accent-cyan);
  flex-shrink:0;
  margin-top:3px;
}
.footer-bottom{
  border-top:1px solid var(--ice-700);
  padding:20px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  font-size:0.8125rem;
  color:var(--ice-100);
  opacity:0.65;
}
.footer-bottom-links a{
  color:var(--ice-100);
  font-size:0.8125rem;
  margin-left:18px;
}
.footer-bottom-links a:hover{
  color:var(--accent-cyan);
}
@media(max-width:1024px){
  .footer-grid{
    grid-template-columns:1fr 1fr;
  }
}
@media(max-width:768px){
  .footer-grid{
    grid-template-columns:1fr;
    gap:32px;
  }
  .footer-bottom{
    flex-direction:column;
    text-align:center;
  }
  .footer-bottom-links a{
    margin:0 9px;
  }
}

/* roulang page: category3 */
:root{
  --ice-950:#061326;
  --ice-900:#0A1D3A;
  --ice-800:#10294A;
  --ice-700:#1B3B66;
  --ice-100:#D6E6FF;
  --ice-50:#F0F7FF;
  --accent-cyan:#22D3EE;
  --accent-cyan-dim:rgba(34,211,238,0.18);
  --accent-red:#FF4D6D;
  --accent-red-dim:rgba(255,77,109,0.15);
  --warm-yellow:#FFC857;
  --glass-bg:rgba(16,41,74,0.42);
  --glass-border:rgba(214,230,255,0.14);
  --glass-highlight:rgba(255,255,255,0.08);
  --shadow-card:0 16px 40px -12px rgba(0,8,20,0.6);
  --shadow-glow-cyan:0 0 30px -4px rgba(34,211,238,0.45);
  --shadow-glow-red:0 0 30px -6px rgba(255,77,109,0.4);
  --grad-cta:linear-gradient(135deg,#22D3EE 0%,#0891B2 100%);
  --grad-cta-hot:linear-gradient(135deg,#FF4D6D 0%,#E11D48 100%);
  --font-main:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --radius-card:20px;
  --radius-sm:12px;
  --transition:all 0.3s ease;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font-main);
  background:var(--ice-950);
  color:var(--ice-50);
  line-height:1.75;
  font-size:1rem;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--ice-100);text-decoration:none;transition:var(--transition);}
a:hover{color:var(--accent-cyan);}
img{max-width:100%;display:block;border:0;}
button{font-family:var(--font-main);cursor:pointer;border:none;background:none;}
ul,ol{list-style:none;}
.container{
  max-width:1280px;
  margin:0 auto;
  padding:0 32px;
}
/* ===== 顶栏 ===== */
.topbar{
  height:36px;
  background:rgba(6,19,38,0.95);
  border-bottom:1px solid rgba(214,230,255,0.08);
  display:flex;
  align-items:center;
}
.topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  width:100%;
}
.topbar-inner span{
  font-size:0.75rem;
  color:rgba(214,230,255,0.7);
  letter-spacing:0.02em;
}
.topbar-links{
  display:flex;
  gap:24px;
}
.topbar-links a{
  font-size:0.75rem;
  color:rgba(214,230,255,0.75);
  display:flex;
  align-items:center;
  gap:6px;
}
.topbar-links a svg{width:14px;height:14px;stroke:var(--accent-cyan);}
.topbar-links a:hover{color:var(--accent-cyan);}
/* ===== 主导航 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  height:76px;
  background:rgba(6,19,38,0.82);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid rgba(214,230,255,0.08);
  transition:height 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
  display:flex;
  align-items:center;
}
.site-header.scrolled{
  height:64px;
  background:rgba(6,19,38,0.94);
  box-shadow:0 8px 32px -8px rgba(0,8,20,0.7);
}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  width:100%;
  gap:24px;
}
.nav-left,.nav-right{
  display:flex;
  align-items:center;
  gap:32px;
}
.nav-right{
  justify-content:flex-end;
}
.nav-link{
  position:relative;
  font-size:0.9375rem;
  font-weight:500;
  color:rgba(214,230,255,0.85);
  padding:8px 2px;
  line-height:1.4;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:100%;
  height:2px;
  background:var(--accent-cyan);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left;
  transition:transform 0.3s ease;
}
.nav-link:hover{
  color:var(--ice-50);
}
.nav-link:hover::after{
  transform:scaleX(1);
}
.nav-link.active{
  color:var(--accent-cyan);
}
.nav-link.active::after{
  transform:scaleX(1);
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  background:rgba(16,41,74,0.55);
  border:1px solid rgba(214,230,255,0.1);
  border-radius:999px;
  padding:8px 22px;
  backdrop-filter:blur(10px);
  transition:var(--transition);
  flex-shrink:0;
}
.logo:hover{
  border-color:rgba(34,211,238,0.4);
  box-shadow:0 0 20px rgba(34,211,238,0.15);
}
.logo-icon{
  width:36px;
  height:36px;
  flex-shrink:0;
}
.logo-text{
  font-size:1.25rem;
  font-weight:700;
  color:var(--ice-50);
  letter-spacing:0.02em;
  white-space:nowrap;
}
.logo-text:hover{color:var(--ice-50);}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:40px;
  padding:0 22px;
  background:var(--grad-cta);
  color:#fff;
  font-size:0.875rem;
  font-weight:600;
  border-radius:999px;
  box-shadow:var(--shadow-glow-cyan);
  transition:var(--transition);
  white-space:nowrap;
}
.nav-cta:hover{
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 0 36px rgba(34,211,238,0.6);
}
.nav-cta:active{
  transform:translateY(0);
  filter:brightness(0.92);
}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--glass-border);
  border-radius:12px;
  background:rgba(16,41,74,0.5);
  cursor:pointer;
  flex-shrink:0;
}
.nav-toggle svg{
  width:22px;
  height:22px;
  stroke:var(--ice-50);
  transition:var(--transition);
}
.nav-toggle.active svg{
  transform:rotate(90deg);
}
/* ===== 移动端抽屉 ===== */
.mobile-drawer{
  position:fixed;
  top:0;
  right:-320px;
  width:300px;
  height:100vh;
  background:rgba(10,29,58,0.96);
  backdrop-filter:blur(24px);
  -webkit-backdrop-filter:blur(24px);
  border-left:1px solid var(--glass-border);
  z-index:200;
  padding:96px 32px 32px;
  transition:right 0.35s cubic-bezier(0.4,0,0.2,1);
  overflow-y:auto;
}
.mobile-drawer.open{
  right:0;
}
.mobile-drawer .drawer-close{
  position:absolute;
  top:20px;
  right:20px;
  width:40px;
  height:40px;
  display:flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--glass-border);
  border-radius:50%;
  background:rgba(16,41,74,0.6);
  color:var(--ice-50);
  font-size:1.25rem;
  cursor:pointer;
}
.mobile-drawer .drawer-nav{
  display:flex;
  flex-direction:column;
  gap:6px;
}
.mobile-drawer .drawer-nav a{
  display:block;
  font-size:1.125rem;
  font-weight:500;
  color:var(--ice-100);
  padding:14px 16px;
  border-radius:12px;
  transition:var(--transition);
}
.mobile-drawer .drawer-nav a:hover{
  background:var(--accent-cyan-dim);
  color:var(--accent-cyan);
}
.mobile-drawer .drawer-nav a.active{
  background:var(--accent-cyan-dim);
  color:var(--accent-cyan);
}
.drawer-overlay{
  position:fixed;
  inset:0;
  background:rgba(0,8,20,0.6);
  backdrop-filter:blur(4px);
  opacity:0;
  visibility:hidden;
  transition:var(--transition);
  z-index:150;
}
.drawer-overlay.show{
  opacity:1;
  visibility:visible;
}
body.drawer-lock{
  overflow:hidden;
}
/* ===== 通用板块间配套 ===== */
.section{
  padding:clamp(3rem,6vw,5rem) 0;
}
.section-head{
  text-align:center;
  margin-bottom:48px;
}
.section-head h2{
  font-size:clamp(1.75rem,3vw,2.25rem);
  font-weight:700;
  color:var(--ice-50);
  line-height:1.3;
  margin-bottom:12px;
}
.section-head p{
  font-size:1rem;
  color:rgba(214,230,255,0.7);
  max-width:640px;
  margin:0 auto;
}
/* ===== 分类Hero ===== */
.category-hero{
  position:relative;
  padding:96px 0 88px;
  background:
    linear-gradient(135deg,rgba(6,19,38,0.92) 0%,rgba(10,29,58,0.78) 55%,rgba(27,59,102,0.55) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  overflow:hidden;
  border-bottom:1px solid rgba(214,230,255,0.06);
}
.category-hero::before{
  content:"";
  position:absolute;
  top:-20%;
  right:-10%;
  width:520px;
  height:520px;
  background:radial-gradient(circle,rgba(34,211,238,0.14) 0%,transparent 65%);
  pointer-events:none;
}
.category-hero::after{
  content:"";
  position:absolute;
  bottom:-30%;
  left:-8%;
  width:420px;
  height:420px;
  background:radial-gradient(circle,rgba(255,77,109,0.09) 0%,transparent 60%);
  pointer-events:none;
}
.hero-inner{
  position:relative;
  z-index:2;
  max-width:820px;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:var(--accent-cyan-dim);
  border:1px solid rgba(34,211,238,0.25);
  color:var(--accent-cyan);
  font-size:0.75rem;
  font-weight:600;
  padding:6px 16px;
  border-radius:999px;
  margin-bottom:20px;
  letter-spacing:0.04em;
}
.hero-badge svg{
  width:16px;
  height:16px;
}
.category-hero h1{
  font-size:clamp(2rem,5vw,3rem);
  font-weight:800;
  line-height:1.18;
  color:var(--ice-50);
  margin-bottom:16px;
  letter-spacing:0.01em;
}
.category-hero h1 em{
  font-style:normal;
  color:var(--accent-cyan);
}
.hero-subtitle{
  font-size:1.125rem;
  color:var(--ice-100);
  margin-bottom:36px;
  max-width:560px;
  line-height:1.6;
}
.hero-stats{
  display:flex;
  align-items:center;
  gap:0;
  border-top:1px solid rgba(214,230,255,0.1);
  padding-top:28px;
  max-width:640px;
}
.hero-stat{
  flex:1;
  text-align:center;
  position:relative;
}
.hero-stat + .hero-stat::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  transform:translateY(-50%);
  width:1px;
  height:36px;
  background:rgba(214,230,255,0.1);
}
.hero-stat .num{
  font-size:1.75rem;
  font-weight:800;
  color:var(--ice-50);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.hero-stat .num i{
  font-style:normal;
  color:var(--accent-cyan);
}
.hero-stat .label{
  font-size:0.75rem;
  color:rgba(214,230,255,0.65);
  margin-top:4px;
}
/* ===== 时间轴资讯 ===== */
.timeline-section{
  padding:clamp(3rem,6vw,5rem) 0;
  position:relative;
}
.timeline-section::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(120deg,rgba(34,211,238,0.03) 0%,rgba(255,77,109,0.02) 100%);
  pointer-events:none;
}
.timeline{
  position:relative;
  max-width:960px;
  margin:0 auto;
  padding-left:0;
}
.timeline::before{
  content:"";
  position:absolute;
  left:16px;
  top:0;
  bottom:0;
  width:2px;
  background:linear-gradient(180deg,rgba(34,211,238,0.5),rgba(34,211,238,0.05));
}
.timeline-item{
  position:relative;
  padding-left:56px;
  margin-bottom:32px;
}
.timeline-item:last-child{
  margin-bottom:0;
}
.timeline-dot{
  position:absolute;
  left:11px;
  top:36px;
  width:12px;
  height:12px;
  border-radius:50%;
  background:var(--ice-950);
  border:2px solid var(--accent-cyan);
  box-shadow:0 0 0 4px rgba(34,211,238,0.15);
}
.timeline-card{
  background:var(--glass-bg);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-card);
  overflow:hidden;
  position:relative;
  transition:var(--transition);
  display:flex;
  gap:0;
}
.timeline-card::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:40%;
  background:linear-gradient(180deg,var(--glass-highlight),transparent);
  border-radius:20px 20px 0 0;
  pointer-events:none;
}
.timeline-card:hover{
  transform:translateY(-4px);
  border-color:rgba(34,211,238,0.25);
  box-shadow:var(--shadow-card);
}
.timeline-thumb{
  width:200px;
  min-height:160px;
  flex-shrink:0;
  position:relative;
  overflow:hidden;
}
.timeline-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform 0.4s ease;
}
.timeline-card:hover .timeline-thumb img{
  transform:scale(1.04);
}
.timeline-body{
  flex:1;
  padding:24px 24px 20px;
  position:relative;
  z-index:1;
}
.timeline-meta{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:8px;
  flex-wrap:wrap;
}
.timeline-date{
  font-size:0.75rem;
  color:rgba(214,230,255,0.55);
  display:flex;
  align-items:center;
  gap:5px;
}
.timeline-date svg{
  width:14px;
  height:14px;
  stroke:rgba(214,230,255,0.5);
}
.card-badge{
  display:inline-block;
  font-size:0.75rem;
  font-weight:600;
  color:var(--accent-cyan);
  background:var(--accent-cyan-dim);
  padding:3px 10px;
  border-radius:8px;
}
.card-badge.hot{
  color:var(--accent-red);
  background:var(--accent-red-dim);
}
.timeline-body h3{
  font-size:1.125rem;
  font-weight:700;
  color:var(--ice-50);
  line-height:1.4;
  margin-bottom:8px;
  transition:color 0.3s;
}
.timeline-card:hover .timeline-body h3{
  color:var(--accent-cyan);
}
.timeline-body p{
  font-size:0.875rem;
  color:rgba(214,230,255,0.7);
  line-height:1.65;
  margin-bottom:12px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.timeline-more{
  font-size:0.8125rem;
  font-weight:600;
  color:var(--accent-cyan);
  display:inline-flex;
  align-items:center;
  gap:6px;
  transition:var(--transition);
}
.timeline-more:hover{
  letter-spacing:0.03em;
}
/* ===== 卖点区 ===== */
.features-section{
  background:rgba(10,29,58,0.35);
  border-top:1px solid rgba(214,230,255,0.05);
  border-bottom:1px solid rgba(214,230,255,0.05);
}
.feature-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.feature-card{
  background:var(--glass-bg);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-card);
  padding:32px 24px;
  position:relative;
  overflow:hidden;
  transition:var(--transition);
}
.feature-card::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:40%;
  background:linear-gradient(180deg,var(--glass-highlight),transparent);
  pointer-events:none;
}
.feature-card:hover{
  transform:translateY(-6px);
  border-color:rgba(34,211,238,0.28);
  box-shadow:var(--shadow-card);
}
.feature-icon{
  width:52px;
  height:52px;
  background:var(--accent-cyan-dim);
  border-radius:14px;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:20px;
  color:var(--accent-cyan);
}
.feature-icon svg{
  width:26px;
  height:26px;
}
.feature-card h3{
  font-size:1.125rem;
  font-weight:700;
  color:var(--ice-50);
  margin-bottom:10px;
}
.feature-card p{
  font-size:0.875rem;
  color:rgba(214,230,255,0.68);
  line-height:1.65;
}
/* ===== 标签云 ===== */
.tags-section{
  padding:clamp(3rem,6vw,5rem) 0;
}
.tag-cloud{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:12px;
  max-width:800px;
  margin:0 auto;
}
.tag-item{
  display:inline-block;
  font-size:0.875rem;
  font-weight:500;
  color:rgba(214,230,255,0.8);
  background:rgba(16,41,74,0.5);
  border:1px solid var(--glass-border);
  border-radius:999px;
  padding:8px 20px;
  transition:var(--transition);
}
.tag-item:hover{
  background:var(--accent-cyan-dim);
  border-color:rgba(34,211,238,0.35);
  color:var(--accent-cyan);
}
/* ===== 数据统计 ===== */
.stats-section{
  background:
    linear-gradient(135deg,rgba(16,41,74,0.55),rgba(6,19,38,0.85)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-top:1px solid rgba(214,230,255,0.06);
  border-bottom:1px solid rgba(214,230,255,0.06);
  padding:clamp(3rem,6vw,4.5rem) 0;
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  text-align:center;
}
.stat-block .stat-num{
  font-size:2.25rem;
  font-weight:800;
  color:var(--ice-50);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.stat-block .stat-num em{
  font-style:normal;
  color:var(--accent-cyan);
}
.stat-block .stat-txt{
  font-size:0.875rem;
  color:rgba(214,230,255,0.65);
  margin-top:6px;
}
/* ===== FAQ ===== */
.faq-section{
  padding:clamp(3rem,6vw,5rem) 0;
}
.faq-list{
  max-width:760px;
  margin:0 auto;
  display:flex;
  flex-direction:column;
  gap:16px;
}
.faq-item{
  background:var(--glass-bg);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border:1px solid var(--glass-border);
  border-radius:20px;
  overflow:hidden;
  transition:border-color 0.3s ease, box-shadow 0.3s ease;
}
.faq-item:hover{
  border-color:rgba(34,211,238,0.2);
}
.faq-item.open{
  border-color:rgba(34,211,238,0.35);
  box-shadow:0 0 24px rgba(34,211,238,0.08);
}
.faq-question{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:22px 24px;
  text-align:left;
  cursor:pointer;
  background:none;
  border:none;
}
.faq-question .q-txt{
  font-size:1rem;
  font-weight:600;
  color:var(--ice-50);
  line-height:1.5;
}
.faq-question .q-icon{
  width:28px;
  height:28px;
  flex-shrink:0;
  border-radius:8px;
  background:var(--accent-cyan-dim);
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--accent-cyan);
  font-size:1.125rem;
  font-weight:400;
  transition:transform 0.3s ease;
}
.faq-item.open .faq-question .q-icon{
  transform:rotate(45deg);
}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height 0.35s ease;
}
.faq-item.open .faq-answer{
  max-height:300px;
}
.faq-answer-inner{
  padding:0 24px 22px;
  font-size:0.9375rem;
  color:rgba(214,230,255,0.75);
  line-height:1.7;
}
/* ===== CTA区 ===== */
.cta-section{
  padding:clamp(3.5rem,6vw,5rem) 0;
  background:
    linear-gradient(180deg,rgba(6,19,38,0.6),rgba(6,19,38,0.9)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  text-align:center;
  border-top:1px solid rgba(255,77,109,0.15);
  position:relative;
  overflow:hidden;
}
.cta-section::before{
  content:"";
  position:absolute;
  top:50%;
  left:50%;
  width:560px;
  height:560px;
  transform:translate(-50%,-50%);
  background:radial-gradient(circle,rgba(255,77,109,0.1) 0%,transparent 65%);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:2;
}
.cta-inner h2{
  font-size:clamp(1.75rem,3.2vw,2.375rem);
  font-weight:800;
  color:var(--ice-50);
  margin-bottom:12px;
}
.cta-inner p{
  font-size:1rem;
  color:rgba(214,230,255,0.72);
  margin-bottom:32px;
}
.cta-btns{
  display:flex;
  justify-content:center;
  gap:20px;
  flex-wrap:wrap;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:48px;
  padding:0 32px;
  border-radius:999px;
  font-size:0.9375rem;
  font-weight:600;
  transition:var(--transition);
  min-height:44px;
}
.btn-primary{
  background:var(--grad-cta);
  color:#fff;
  box-shadow:var(--shadow-glow-cyan);
}
.btn-primary:hover{
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 0 38px rgba(34,211,238,0.6);
}
.btn-primary:active{
  transform:translateY(0);
  filter:brightness(0.92);
}
.btn-outline{
  background:rgba(16,41,74,0.4);
  border:1px solid var(--glass-border);
  color:var(--ice-100);
  backdrop-filter:blur(10px);
}
.btn-outline:hover{
  border-color:var(--accent-cyan);
  color:var(--accent-cyan);
  box-shadow:0 0 20px rgba(34,211,238,0.15);
  transform:translateY(-2px);
}
.btn-outline:active{
  transform:translateY(0);
}
.btn-hot{
  background:var(--grad-cta-hot);
  color:#fff;
  box-shadow:var(--shadow-glow-red);
}
.btn-hot:hover{
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 0 36px rgba(255,77,109,0.55);
}
/* ===== 页脚 ===== */
.site-footer{
  background:var(--ice-900);
  border-top:1px solid var(--ice-700);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:4fr 4fr 4fr;
  gap:48px;
  padding-bottom:48px;
}
.footer-logo{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.footer-logo .logo-icon{
  width:40px;
  height:40px;
}
.footer-logo .logo-text{
  font-size:1.25rem;
  font-weight:700;
  color:var(--ice-50);
}
.footer-desc{
  font-size:0.875rem;
  color:rgba(214,230,255,0.6);
  line-height:1.7;
  margin-bottom:20px;
  max-width:320px;
}
.footer-trust{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:0.8125rem;
  color:rgba(214,230,255,0.7);
  background:rgba(34,211,238,0.08);
  border:1px solid rgba(34,211,238,0.16);
  border-radius:999px;
  padding:6px 16px;
}
.footer-trust svg{
  width:16px;
  height:16px;
  stroke:var(--accent-cyan);
}
.footer-col h4{
  font-size:0.9375rem;
  font-weight:700;
  color:var(--ice-50);
  margin-bottom:20px;
  letter-spacing:0.03em;
}
.footer-col ul li{
  margin-bottom:12px;
}
.footer-col ul li a{
  font-size:0.875rem;
  color:rgba(214,230,255,0.65);
  transition:var(--transition);
  display:inline-block;
}
.footer-col ul li a:hover{
  color:var(--accent-cyan);
  transform:translateX(4px);
}
.footer-contact li{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:0.875rem;
  color:rgba(214,230,255,0.65);
  margin-bottom:16px;
}
.footer-contact svg{
  width:18px;
  height:18px;
  stroke:var(--accent-cyan);
  flex-shrink:0;
}
.footer-bottom{
  border-top:1px solid rgba(214,230,255,0.08);
  padding:20px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:0.8125rem;
  color:rgba(214,230,255,0.5);
}
.footer-bottom-links{
  display:flex;
  gap:24px;
}
.footer-bottom-links a{
  color:rgba(214,230,255,0.5);
  font-size:0.8125rem;
}
.footer-bottom-links a:hover{
  color:var(--accent-cyan);
}
/* ===== 响应式 ===== */
@media (max-width:1199px){
  .nav-left,.nav-right{gap:20px;}
  .feature-grid{grid-template-columns:repeat(2,1fr);}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:32px 24px;}
  .footer-grid{grid-template-columns:1fr 1fr 1fr;gap:32px;}
}
@media (max-width:991px){
  .nav-left,.nav-right{display:none;}
  .nav-right-mobile{
    display:flex;
    align-items:center;
    gap:12px;
  }
  .nav-toggle{display:flex;}
  .header-inner{
    grid-template-columns:1fr auto 1fr;
  }
  .logo{
    justify-self:center;
  }
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .topbar{display:none;}
  .site-header{height:64px;}
  .site-header.scrolled{height:56px;}
  .logo{padding:6px 16px;}
  .logo-icon{width:30px;height:30px;}
  .logo-text{font-size:1.0625rem;}
  .category-hero{padding:64px 0 56px;}
  .category-hero h1{font-size:1.75rem;}
  .hero-subtitle{font-size:1rem;}
  .hero-stats{flex-wrap:wrap;gap:20px 0;}
  .hero-stat{flex:1 1 50%;}
  .hero-stat:nth-child(2n+1)::before{display:none;}
  .hero-stat:nth-child(even)::before{left:0;top:50%;width:1px;height:30px;}
  .timeline{padding-left:0;}
  .timeline::before{left:10px;}
  .timeline-item{padding-left:40px;}
  .timeline-dot{left:6px;}
  .timeline-card{flex-direction:column;}
  .timeline-thumb{width:100%;min-height:140px;}
  .timeline-body{padding:18px 18px 16px;}
  .feature-grid{grid-template-columns:1fr;}
  .stats-grid{grid-template-columns:1fr 1fr;gap:32px 16px;}
  .stat-block .stat-num{font-size:1.75rem;}
  .section-head{margin-bottom:32px;}
  .faq-question{padding:18px 16px;}
  .faq-answer-inner{padding:0 16px 18px;}
  .btn{padding:0 24px;height:46px;}
  .footer-grid{grid-template-columns:1fr;gap:40px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;text-align:center;}
}
@media (max-width:520px){
  .logo-text{font-size:0.9375rem;}
  .logo{padding:6px 12px;gap:6px;}
  .nav-cta{padding:0 14px;font-size:0.8125rem;height:36px;}
  .category-hero h1{font-size:1.5rem;}
  .hero-stat .num{font-size:1.375rem;}
}