/* roulang page: index */
:root {
  --ian-primary: #4da8ff;
  --ian-primary-deep: #1d6ed6;
  --ian-primary-soft: rgba(77, 168, 255, 0.14);
  --ian-accent: #ffc34d;
  --ian-accent-2: #ffb14d;
  --ian-accent-soft: rgba(255, 195, 77, 0.14);
  --ian-bg: #0a0f1f;
  --ian-bg-deep: #070c1a;
  --ian-surface: rgba(255, 255, 255, 0.05);
  --ian-surface-2: rgba(255, 255, 255, 0.08);
  --ian-border: rgba(255, 255, 255, 0.1);
  --ian-border-light: rgba(255, 255, 255, 0.18);
  --ian-text: rgba(255, 255, 255, 0.92);
  --ian-text-2: rgba(255, 255, 255, 0.62);
  --ian-text-3: rgba(255, 255, 255, 0.38);
  --ian-radius-lg: 18px;
  --ian-radius-md: 14px;
  --ian-radius-sm: 10px;
  --ian-shadow-lg: 0 18px 50px rgba(0, 0, 0, 0.45);
  --ian-shadow-md: 0 10px 30px rgba(0, 0, 0, 0.32);
  --ian-shadow-primary: 0 8px 30px rgba(77, 168, 255, 0.28);
  --ian-shadow-accent: 0 8px 30px rgba(255, 179, 77, 0.26);
  --ian-glow-primary: 0 0 0 1px rgba(77, 168, 255, 0.28), 0 0 22px rgba(77, 168, 255, 0.22);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--ian-bg);
  color: var(--ian-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--ian-primary);
  text-decoration: none;
  transition: color 0.25s ease, background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease, opacity 0.25s ease;
}

a:hover {
  color: #fff;
}

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

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: 1.5;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  line-height: 1.2;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.95);
}

p {
  margin: 0;
}

.skip-link {
  position: absolute;
  left: -200px;
  top: 12px;
  z-index: 90;
  background: var(--ian-accent);
  color: #1b1204;
  padding: 8px 18px;
  border-radius: 999px;
  font-weight: 700;
}

.skip-link:focus {
  left: 16px;
}

.layout-shell {
  min-height: 100vh;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 28px;
}

.section {
  padding: 80px 0;
  position: relative;
}

.section-light {
  background: rgba(255, 255, 255, 0.02);
  border-top: 1px solid var(--ian-border);
  border-bottom: 1px solid var(--ian-border);
}

.section-head {
  max-width: 820px;
  margin-bottom: 40px;
  position: relative;
}

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ian-accent);
  background: var(--ian-accent-soft);
  border: 1px solid rgba(255, 195, 77, 0.22);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.section-title {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: 0.01em;
  margin-bottom: 12px;
}

.section-desc {
  color: var(--ian-text-2);
  font-size: 16px;
  max-width: 760px;
}

.lottie,
.icon {
  color: var(--ian-primary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 46px;
  padding: 0 28px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--ian-surface-2);
  color: rgba(255, 255, 255, 0.88);
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn i {
  font-size: 15px;
}

.btn:hover {
  color: #fff;
  transform: translateY(-2px);
}

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

.btn:focus-visible {
  outline: 3px solid var(--ian-primary);
  outline-offset: 3px;
}

.btn-accent {
  background: linear-gradient(135deg, #ffd76f, var(--ian-accent) 55%, var(--ian-accent-2));
  color: #241607;
  box-shadow: var(--ian-shadow-accent);
}

.btn-accent:hover {
  color: #241607;
  box-shadow: 0 12px 36px rgba(255, 179, 77, 0.4);
}

.btn-primary {
  background: linear-gradient(135deg, #6dbaff, var(--ian-primary) 55%, #2b7fe0);
  color: #071321;
  box-shadow: var(--ian-shadow-primary);
}

.btn-primary:hover {
  color: #071321;
  box-shadow: 0 12px 38px rgba(77, 168, 255, 0.42);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.85);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.32);
  color: #fff;
}

.btn-lg {
  height: 54px;
  padding: 0 38px;
  font-size: 16px;
}

/* Desktop Side Nav */
.side-nav {
  position: fixed;
  inset: 0 auto 0 0;
  width: 248px;
  display: flex;
  flex-direction: column;
  z-index: 40;
  padding: 26px 18px 18px;
  background: linear-gradient(165deg, rgba(8, 14, 29, 0.96), rgba(5, 10, 22, 0.92));
  border-right: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: 8px 0 30px rgba(0, 0, 0, 0.22);
}

.brand-block {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  padding: 0 4px 22px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 18px;
}

.brand-main {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: #fff;
  padding: 4px 0;
}

.brand-main:hover {
  color: var(--ian-primary);
}

.brand-main .brand-icon {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--ian-primary-soft);
  border: 1px solid rgba(77, 168, 255, 0.35);
  color: var(--ian-primary);
  font-size: 18px;
  box-shadow: var(--ian-glow-primary);
}

.brand-sub {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.32em;
  color: var(--ian-text-3);
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: 2px;
}

.brand-sub span {
  width: 16px;
  height: 1px;
  background: var(--ian-accent);
  box-shadow: 0 0 8px rgba(255, 195, 77, 0.8);
}

.side-label {
  font-size: 12px;
  color: var(--ian-text-3);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 6px;
  padding: 0 14px;
}

.side-menu {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.menu-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ian-text-2);
  border-right: 3px solid transparent;
  background: transparent;
}

.menu-link i {
  width: 20px;
  text-align: center;
  font-size: 16px;
  color: var(--ian-text-3);
  transition: color 0.25s ease, transform 0.25s ease;
}

.menu-link span {
  line-height: 1;
}

.menu-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

.menu-link:hover i {
  color: var(--ian-primary);
  transform: translateX(2px);
}

.menu-link.active {
  color: #fff;
  background: linear-gradient(90deg, rgba(77, 168, 255, 0.16), rgba(77, 168, 255, 0.04));
  border-right-color: var(--ian-primary);
  box-shadow: inset 0 0 24px rgba(77, 168, 255, 0.06);
}

.menu-link.active i {
  color: var(--ian-primary);
}

.side-login {
  margin-top: 16px;
  padding: 16px 2px 4px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: grid;
  gap: 10px;
}

.side-login .btn {
  width: 100%;
}

.side-foot {
  margin-top: 14px;
  padding: 12px 4px 0;
  font-size: 13px;
  color: var(--ian-text-3);
  text-align: center;
  line-height: 1.6;
}

/* Mobile top bar */
.mobile-only {
  display: none;
}

.mobile-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 14px 18px;
  background: rgba(6, 11, 24, 0.92);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  position: sticky;
  top: 0;
  z-index: 45;
  backdrop-filter: blur(14px);
}

.mobile-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  font-weight: 800;
  font-size: 17px;
  letter-spacing: 0.01em;
}

.mobile-brand i {
  color: var(--ian-primary);
}

.menu-burger {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 18px;
  cursor: pointer;
}

.mnav-check {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.mobile-nav {
  display: grid;
  gap: 2px;
  background: rgba(8, 13, 27, 0.98);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.4s ease, padding 0.4s ease;
  padding: 0 18px;
}

.mnav-check:checked+.mobile-nav {
  max-height: 520px;
  padding: 14px 18px 20px;
}

.mobile-nav .mobile-login {
  display: flex;
  gap: 10px;
  margin-top: 14px;
}

.mobile-nav .mobile-login .btn {
  flex: 1;
  padding: 0 14px;
}

.mobile-nav .menu-link {
  border: 0;
  border-left: 3px solid transparent;
}

.mobile-nav .menu-link.active {
  border-left-color: var(--ian-primary);
  border-right: 0;
  border-radius: 10px;
}

.mobile-nav .menu-link i {
  width: 24px;
}

/* Main area */
.main-area {
  margin-left: 248px;
  min-height: 100vh;
  overflow: hidden;
}

/* Hero */
.hero-section {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 620px;
  padding: 96px 28px 72px;
  background:
    radial-gradient(900px 420px at 10% 20%, rgba(77, 168, 255, 0.2), transparent 60%),
    radial-gradient(800px 360px at 90% 80%, rgba(255, 195, 77, 0.1), transparent 60%),
    linear-gradient(180deg, rgba(6, 11, 24, 0.5), rgba(7, 12, 26, 0.88)),
    url('/assets/images/backpic/back-1.webp') center center / cover no-repeat var(--ian-bg-deep);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.hero-section::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(77, 168, 255, 0.5), transparent);
}

.hero-inner {
  width: 100%;
  max-width: 1220px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
  gap: 56px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-copy {
  max-width: 680px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ian-accent);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.12em;
  background: rgba(255, 195, 77, 0.12);
  border: 1px solid rgba(255, 195, 77, 0.2);
  box-shadow: 0 0 26px rgba(255, 195, 77, 0.1);
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 22px;
}

.hero-eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ian-accent);
  box-shadow: 0 0 10px var(--ian-accent);
}

.hero-title {
  font-size: clamp(36px, 4.4vw, 56px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.hero-title span {
  display: block;
  color: var(--ian-primary);
  text-shadow: 0 0 30px rgba(77, 168, 255, 0.35);
}

.hero-lead {
  color: var(--ian-text-2);
  font-size: 17px;
  line-height: 1.9;
  max-width: 560px;
  margin-bottom: 30px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 34px;
}

.hero-dots {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}

.dot-item {
  color: var(--ian-text-2);
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.dot-item i {
  color: var(--ian-accent);
  width: 20px;
  text-align: center;
}

.hero-visual {
  position: relative;
  border-radius: var(--ian-radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: var(--ian-shadow-lg), 0 0 50px rgba(77, 168, 255, 0.14);
  background: rgba(255, 255, 255, 0.03);
  padding: 14px;
  backdrop-filter: blur(12px);
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: var(--ian-radius-lg);
  padding: 1px;
  background: linear-gradient(135deg, rgba(77, 168, 255, 0.5), transparent 50%, rgba(255, 195, 77, 0.45));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  z-index: 3;
}

.hero-visual img {
  width: 100%;
  border-radius: 12px;
  height: auto;
  aspect-ratio: 16/10;
  object-fit: cover;
}

.hero-visual-caption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 12px 4px;
}

.hero-visual-caption strong {
  color: rgba(255, 255, 255, 0.92);
  font-size: 15px;
}

.hero-visual-caption span {
  font-size: 13px;
  color: var(--ian-accent);
  font-weight: 700;
}

/* Quick action */
.quick-section {
  position: relative;
  margin-top: -44px;
  z-index: 8;
}

.quick-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.quick-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 20px;
  border-radius: var(--ian-radius-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  transition: transform 0.25s ease, background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.quick-card:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(77, 168, 255, 0.45);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.25);
}

.quick-icon {
  width: 46px;
  height: 46px;
  flex: 0 0 46px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 19px;
  background: var(--ian-primary-soft);
  color: var(--ian-primary);
  border: 1px solid rgba(77, 168, 255, 0.3);
}

.quick-card:nth-child(2) .quick-icon {
  background: var(--ian-accent-soft);
  color: var(--ian-accent);
  border-color: rgba(255, 195, 77, 0.3);
}

.quick-card:nth-child(3) .quick-icon {
  background: rgba(191, 255, 94, 0.1);
  color: #bfff5e;
  border-color: rgba(191, 255, 94, 0.3);
}

.quick-card:nth-child(4) .quick-icon {
  background: rgba(100, 255, 218, 0.1);
  color: #64ffda;
  border-color: rgba(100, 255, 218, 0.3);
}

.quick-copy {
  min-width: 0;
}

.quick-copy strong {
  display: block;
  font-size: 15px;
  margin-bottom: 2px;
  color: rgba(255, 255, 255, 0.92);
}

.quick-copy small {
  display: block;
  color: var(--ian-text-3);
  font-size: 13px;
  line-height: 1.4;
}

/* Glass panel */
.glass-card {
  background: var(--ian-surface);
  border: 1px solid var(--ian-border);
  border-radius: var(--ian-radius-lg);
  backdrop-filter: blur(12px);
  box-shadow: var(--ian-shadow-md);
}

/* Compare table */
.compare-section {
  padding-top: 64px;
}

.bt-scroll {
  overflow-x: auto;
  border-radius: var(--ian-radius-lg);
  border: 1px solid var(--ian-border);
  background: rgba(255, 255, 255, 0.035);
  box-shadow: var(--ian-shadow-md);
}

.bt-sheet {
  width: 100%;
  min-width: 700px;
  border-collapse: collapse;
  background: transparent;
}

.bt-sheet th,
.bt-sheet td {
  padding: 16px 20px;
  text-align: left;
  vertical-align: middle;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  color: var(--ian-text-2);
  background: transparent;
}

.bt-sheet thead th {
  color: rgba(255, 255, 255, 0.92);
  font-weight: 800;
  background: rgba(255, 255, 255, 0.04);
  border-bottom-width: 1px;
}

.bt-sheet thead th:nth-child(1) {
  border-top-left-radius: var(--ian-radius-lg);
}

.bt-sheet thead th:nth-child(3) {
  border-top-right-radius: var(--ian-radius-lg);
}

.bt-sheet tbody tr:last-child th,
.bt-sheet tbody tr:last-child td {
  border-bottom: 0;
}

.bt-sheet tbody th {
  color: rgba(255, 255, 255, 0.88);
  font-weight: 700;
  font-size: 15px;
  background: rgba(255, 255, 255, 0.02);
}

.bt-sheet tbody td {
  font-size: 14px;
  line-height: 1.6;
}

.bt-sheet tbody tr:nth-child(even) th,
.bt-sheet tbody tr:nth-child(even) td {
  background: rgba(255, 255, 255, 0.018);
}

.bt-sheet tbody tr:last-child td:last-child {
  border-bottom-right-radius: var(--ian-radius-lg);
}

.bt-sheet tbody tr:last-child th:last-child {
  border-bottom-left-radius: var(--ian-radius-lg);
}

.bt-member {
  color: var(--ian-accent) !important;
  font-weight: 700;
}

.bt-head-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.bt-head-badge.normal {
  background: rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.85);
}

.bt-head-badge.vip {
  background: var(--ian-accent-soft);
  color: var(--ian-accent);
  border: 1px solid rgba(255, 195, 77, 0.25);
}

.vip-tip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  font-size: 13px;
  color: var(--ian-text-3);
}

.vip-tip i {
  color: var(--ian-accent);
}

/* Tier cards */
.tier-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

@media screen and (max-width: 1023px) {
  .tier-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media screen and (max-width: 520px) {
  .tier-grid {
    grid-template-columns: 1fr;
  }
}

.tier-card {
  position: relative;
  border-radius: var(--ian-radius-lg);
  padding: 22px 20px 20px;
  overflow: hidden;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.04));
  border: 1px solid var(--ian-border);
  backdrop-filter: blur(10px);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.tier-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--ian-primary), transparent);
}

.tier-card.lv-1::before {
  background: linear-gradient(90deg, #4da8ff, #8ab8ff);
}

.tier-card.lv-5::before {
  background: linear-gradient(90deg, #bfff5e, #4dff88);
}

.tier-card.lv-8::before {
  background: linear-gradient(90deg, #ffc778, var(--ian-accent));
}

.tier-card.lv-12::before {
  background: linear-gradient(90deg, #8f6fff, #d28aff);
}

.tier-card.lv-15::before {
  background: linear-gradient(90deg, #64ffda, #4da8ff);
}

.tier-card.lv-20::before {
  background: linear-gradient(90deg, #ff9fd0, #ff6767);
}

.tier-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.32);
}

.tier-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.tier-top .tier-lv {
  font-weight: 900;
  font-size: 20px;
  letter-spacing: 0.02em;
}

.tier-top .tier-ico {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  color: var(--ian-primary);
  background: rgba(255, 255, 255, 0.08);
  font-size: 17px;
}

.tier-name {
  font-size: 17px;
  font-weight: 800;
  margin-bottom: 8px;
}

.tier-desc {
  color: var(--ian-text-2);
  font-size: 14px;
  line-height: 1.7;
}

.tier-label {
  display: inline-block;
  margin-top: 12px;
  font-size: 12px;
  font-weight: 700;
  color: var(--ian-accent);
  background: var(--ian-accent-soft);
  border-radius: 999px;
  padding: 3px 10px;
}

/* Game feature static */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.game-card {
  border-radius: var(--ian-radius-lg);
  overflow: hidden;
  border: 1px solid var(--ian-border);
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(8px);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  display: flex;
  flex-direction: column;
}

.game-card:hover {
  transform: translateY(-5px);
  border-color: rgba(77, 168, 255, 0.35);
  box-shadow: var(--ian-shadow-lg);
}

.game-card .cover-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
}

.game-card .cover-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.game-card:hover .cover-thumb img {
  transform: scale(1.05);
}

.game-card .cover-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(5, 10, 22, 0.72));
}

.game-tag {
  position: absolute;
  left: 12px;
  top: 12px;
  z-index: 2;
  background: rgba(4, 8, 15, 0.72);
  backdrop-filter: blur(6px);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.game-body {
  padding: 18px 20px 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.game-body h3 {
  font-size: 17px;
  font-weight: 800;
  margin-bottom: 8px;
}

.game-body p {
  font-size: 14px;
  color: var(--ian-text-2);
  flex: 1;
  line-height: 1.7;
}

.game-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  font-size: 14px;
  font-weight: 700;
  color: var(--ian-primary);
}

.game-more i {
  transition: transform 0.2s ease;
}

.game-card:hover .game-more i {
  transform: translateX(4px);
}

/* Cover strip */
.cover-strip {
  display: flex;
  gap: 22px;
  overflow-x: auto;
  padding: 2px 2px 16px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.cover-strip::-webkit-scrollbar {
  height: 8px;
}

.cover-strip::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
}

.cover-strip::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.16);
  border-radius: 10px;
}

.cover-strip::-webkit-scrollbar-thumb:hover {
  background: var(--ian-primary);
}

.cover-card {
  flex: 0 0 300px;
  max-width: 300px;
  scroll-snap-align: start;
  border-radius: var(--ian-radius-lg);
  overflow: hidden;
  border: 1px solid var(--ian-border);
  background: var(--ian-surface);
  backdrop-filter: blur(10px);
  box-shadow: var(--ian-shadow-md);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.cover-card:hover {
  transform: translateY(-5px);
  border-color: rgba(77, 168, 255, 0.4);
  box-shadow: var(--ian-shadow-lg), 0 0 28px rgba(77, 168, 255, 0.14);
}

.cover-media {
  aspect-ratio: 16/9;
  overflow: hidden;
  position: relative;
}

.cover-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.cover-body {
  padding: 18px 18px 20px;
}

.cover-body .tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--ian-accent);
  background: var(--ian-accent-soft);
  border: 1px solid rgba(255, 195, 77, 0.2);
  border-radius: 999px;
  padding: 3px 10px;
  margin-bottom: 10px;
}

.cover-body h3 {
  font-size: 17px;
  font-weight: 800;
  line-height: 1.45;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.cover-body p {
  font-size: 14px;
  color: var(--ian-text-2);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 10px;
}

.cover-body time {
  color: var(--ian-text-3);
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.cover-body time i {
  color: var(--ian-primary);
}

.cover-link {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  color: inherit;
}

.cover-link:hover {
  color: inherit;
}

.list-empty {
  display: block;
  padding: 36px 28px;
  text-align: center;
  color: var(--ian-text-2);
  border-radius: var(--ian-radius-lg);
  border: 1px dashed rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.03);
  font-size: 15px;
}

/* Latest list */
.news-panel {
  border-radius: var(--ian-radius-lg);
  border: 1px solid var(--ian-border);
  background: rgba(255, 255, 255, 0.03);
  overflow: hidden;
}

.news-row {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr) auto;
  align-items: center;
  gap: 20px;
  padding: 20px 24px;
  color: var(--ian-text);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  transition: background 0.25s ease;
}

.news-row:last-child {
  border-bottom: 0;
}

.news-row:hover {
  background: rgba(77, 168, 255, 0.07);
  color: #fff;
}

.news-date {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--ian-text-2);
}

.news-date i {
  color: var(--ian-primary);
  font-size: 14px;
}

.news-main {
  min-width: 0;
}

.news-main .news-cat {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--ian-accent);
  margin-right: 10px;
  background: rgba(255, 195, 77, 0.1);
  border-radius: 999px;
  padding: 2px 10px;
}

.news-main h3 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.news-main p {
  color: var(--ian-text-2);
  font-size: 14px;
  margin-top: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.news-arrow {
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--ian-border);
  color: var(--ian-text-2);
  background: rgba(255, 255, 255, 0.03);
  transition: all 0.25s ease;
}

.news-row:hover .news-arrow {
  background: var(--ian-primary);
  border-color: var(--ian-primary);
  color: #071321;
}

@media screen and (max-width: 640px) {
  .news-row {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 18px 18px;
  }

  .news-date {
    justify-content: flex-start;
  }

  .news-main p {
    white-space: normal;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
  }

  .news-arrow {
    display: none;
  }
}

/* FAQ */
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
}

.faq-head {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 44px;
}

.faq-panel {
  border-radius: var(--ian-radius-md);
  border: 1px solid var(--ian-border);
  background: rgba(255, 255, 255, 0.04);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
}

.faq-panel.open {
  border-color: rgba(77, 168, 255, 0.42);
  background: rgba(255, 255, 255, 0.06);
  box-shadow: 0 0 0 1px rgba(77, 168, 255, 0.12), 0 14px 30px rgba(0, 0, 0, 0.16);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 14px;
  padding: 18px 20px;
  background: transparent;
  border: 0;
  cursor: pointer;
  text-align: left;
  color: rgba(255, 255, 255, 0.92);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  transition: color 0.25s ease;
}

.faq-qnum {
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 800;
  background: var(--ian-primary-soft);
  color: var(--ian-primary);
  border: 1px solid rgba(77, 168, 255, 0.2);
}

.faq-panel.open .faq-qnum {
  background: var(--ian-accent);
  color: #1d1506;
  border-color: var(--ian-accent);
}

.faq-toggle-icon {
  margin-left: auto;
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--ian-border);
  transition: transform 0.3s ease, background 0.3s ease;
}

.faq-panel.open .faq-toggle-icon {
  transform: rotate(135deg);
  background: var(--ian-accent);
  color: #1d1506;
  border-color: var(--ian-accent);
}

.faq-answer {
  display: block;
  padding: 0 20px 20px 66px;
  color: var(--ian-text-2);
  font-size: 15px;
  line-height: 1.8;
}

html.js .faq-answer {
  display: none;
}

html.js .faq-panel.open .faq-answer {
  display: block;
}

/* CTA strip */
.cta-strip {
  position: relative;
  border-radius: var(--ian-radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 46px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  background:
    linear-gradient(180deg, rgba(7, 12, 26, 0.72), rgba(7, 12, 26, 0.86)),
    url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
  box-shadow: var(--ian-shadow-lg);
}

.cta-strip::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(500px 180px at 85% 0%, rgba(255, 195, 77, 0.13), transparent 60%);
  pointer-events: none;
}

.cta-copy {
  position: relative;
  z-index: 2;
  max-width: 560px;
}

.cta-copy h2 {
  font-size: 26px;
  font-weight: 900;
  line-height: 1.35;
  margin-bottom: 10px;
}

.cta-copy p {
  color: var(--ian-text-2);
  font-size: 15px;
}

.cta-actions {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

/* Footer */
.site-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: #060a16;
  padding: 54px 0 0;
  margin-top: 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 40px;
}

.footer-brand h4 {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 22px;
  font-weight: 900;
  color: #fff;
  margin-bottom: 14px;
}

.footer-brand h4 i {
  color: var(--ian-primary);
}

.footer-brand p {
  color: var(--ian-text-2);
  font-size: 14px;
  line-height: 1.8;
  max-width: 300px;
}

.footer-col h5 {
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.02em;
  margin-bottom: 16px;
  color: rgba(255, 255, 255, 0.92);
}

.footer-col ul {
  display: grid;
  gap: 10px;
}

.footer-col li a {
  color: var(--ian-text-2);
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: color 0.2s ease;
}

.footer-col li a i {
  color: var(--ian-third);
  color: rgba(255, 255, 255, 0.2);
  font-size: 12px;
  transition: color 0.2s ease;
}

.footer-col li a:hover {
  color: var(--ian-accent);
}

.footer-col li a:hover i {
  color: var(--ian-accent);
}

.footer-sec {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 16px 0 20px;
}

.footer-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.footer-copy {
  font-size: 13px;
  color: var(--ian-text-3);
}

.footer-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
  color: var(--ian-text-3);
}

.footer-trust span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-trust i {
  color: var(--ian-primary);
}

/* Responsive */
@media screen and (max-width: 1199.98px) {
  .hero-inner {
    gap: 36px;
  }

  .quick-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media screen and (max-width: 992.98px) {
  .side-nav {
    display: none;
  }

  .mobile-only {
    display: block;
  }

  .main-area {
    margin-left: 0;
  }

  .hero-section {
    padding: 56px 20px 48px;
    min-height: 0;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 34px;
    padding-top: 10px;
  }

  .hero-copy {
    max-width: 100%;
  }

  .hero-title {
    font-size: clamp(32px, 6vw, 46px);
  }

  .hero-visual {
    max-width: 540px;
  }

  .quick-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .quick-section {
    margin-top: 0;
    padding-top: 44px;
  }

  .section {
    padding: 56px 0;
  }

  .section-title {
    font-size: 27px;
  }

  .cta-strip {
    flex-direction: column;
    align-items: flex-start;
    padding: 36px 28px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
}

@media screen and (max-width: 767.98px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }
}

@media screen and (max-width: 640px) {
  .container {
    padding: 0 18px;
  }

  .hero-section {
    padding: 46px 18px 40px;
  }

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

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

  .hero-dots {
    flex-direction: column;
    gap: 12px;
  }

  .section {
    padding: 48px 0;
  }

  .quick-grid {
    gap: 12px;
  }

  .quick-card {
    padding: 16px 14px;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
  }

  .quick-icon {
    width: 42px;
    height: 42px;
  }

  .section-title {
    font-size: 25px;
  }

  .faq-question {
    padding: 16px 14px;
  }

  .faq-answer {
    padding: 0 14px 18px 14px;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 26px;
    padding-bottom: 28px;
  }

  .footer-bar {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media screen and (max-width: 400px) {
  .quick-grid {
    grid-template-columns: 1fr;
  }

  .cover-card {
    flex: 0 0 85vw;
  }
}

/* roulang page: article */
:root {
            --bg: #0a0f1f;
            --surface: rgba(255, 255, 255, 0.055);
            --surface-strong: rgba(255, 255, 255, 0.08);
            --border: rgba(255, 255, 255, 0.11);
            --border-light: rgba(255, 255, 255, 0.16);
            --primary: #4da8ff;
            --primary-soft: rgba(77, 168, 255, 0.16);
            --accent: #ffc34d;
            --accent-soft: rgba(255, 195, 77, 0.14);
            --lime: #c6ff5f;
            --text: rgba(255, 255, 255, 0.92);
            --text-secondary: rgba(255, 255, 255, 0.63);
            --text-faint: rgba(255, 255, 255, 0.36);
            --r-lg: 22px;
            --r-md: 16px;
            --shadow-md: 0 14px 36px rgba(0, 0, 0, 0.36);
            --shadow-blue: 0 0 18px rgba(77, 168, 255, 0.2);
            --max-content: 1280px;
            --reading: 780px;
            --nav-w: 240px;
            --serif: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--serif);
            background-color: var(--bg);
            background-image:
                radial-gradient(circle at 82% 8%, rgba(77, 168, 255, 0.08), transparent 32%),
                radial-gradient(circle at 8% 76%, rgba(255, 195, 77, 0.05), transparent 28%),
                linear-gradient(180deg, #080d1a 0%, #0a1022 42%, #0b1122 100%);
            background-attachment: fixed;
            color: var(--text);
            font-size: 16px;
            line-height: 1.72;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
        }

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

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

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

        :focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 4px;
            border-radius: 6px;
        }

        .site-shell {
            min-height: 100vh;
            overflow: hidden;
        }

        /* ---------------- 左侧导航 ---------------- */
        .side-nav {
            position: fixed;
            top: 0;
            bottom: 0;
            left: 0;
            width: var(--nav-w);
            z-index: 60;
            padding: 26px 20px 20px;
            display: flex;
            flex-direction: column;
            background: rgba(8, 12, 25, 0.84);
            border-right: 1px solid var(--border);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            box-shadow: 8px 0 30px rgba(0, 0, 0, 0.22);
        }

        .side-nav-logo {
            display: block;
            padding: 10px 12px 18px;
            border-bottom: 1px solid var(--border);
            margin-bottom: 20px;
            position: relative;
        }

        .side-nav-logo .logo-main {
            display: block;
            font-size: 21px;
            font-weight: 800;
            letter-spacing: 0.02em;
            background: linear-gradient(135deg, #fff 8%, var(--primary) 92%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.35;
        }

        .side-nav-logo .logo-sub {
            margin-top: 6px;
            display: block;
            font-size: 12px;
            color: var(--text-faint);
            letter-spacing: 0.14em;
        }

        .side-nav-links {
            list-style: none;
            margin: 0;
            padding: 0;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .side-nav-links li {
            margin: 0;
        }

        .side-nav-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 14px;
            color: var(--text-secondary);
            border-radius: 14px;
            border: 1px solid transparent;
            font-size: 15px;
            font-weight: 500;
            position: relative;
            transition: background 0.22s ease, color 0.22s ease, border-color 0.22s ease, transform 0.22s ease;
        }

        .side-nav-link .nav-icon {
            width: 22px;
            height: 22px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.06);
            font-size: 13px;
            color: var(--primary);
            transition: all 0.2s ease;
        }

        .side-nav-link:hover {
            color: #fff;
            background: var(--surface);
            border-color: var(--border);
            transform: translateX(2px);
        }

        .side-nav-link.active {
            color: #fff;
            background: linear-gradient(90deg, var(--primary-soft), rgba(77, 168, 255, 0.04));
            border-color: rgba(77, 168, 255, 0.32);
            box-shadow: var(--shadow-blue);
        }

        .side-nav-link.active::before {
            content: "";
            position: absolute;
            left: -20px;
            top: 9px;
            bottom: 9px;
            width: 3px;
            border-radius: 0 6px 6px 0;
            background: var(--primary);
            box-shadow: 0 0 14px var(--primary);
        }

        .side-nav-footer {
            margin-top: 22px;
            padding-top: 16px;
            border-top: 1px solid var(--border);
            color: var(--text-faint);
            font-size: 12px;
            letter-spacing: 0.04em;
        }

        .site-main {
            margin-left: var(--nav-w);
            padding: 0;
            min-height: 100vh;
            width: auto;
        }

        /* ---------------- 移动端导航 ---------------- */
        .mobile-nav-wrap {
            display: none;
        }

        .mobile-topbar {
            position: relative;
            z-index: 70;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 18px;
            background: rgba(8, 12, 25, 0.92);
            border-bottom: 1px solid var(--border);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
        }

        .mobile-brand {
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            line-height: 1.3;
        }

        .mobile-brand small {
            display: block;
            font-size: 11px;
            font-weight: 400;
            color: var(--text-faint);
            letter-spacing: 0.1em;
        }

        .mobile-burger {
            display: flex;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--surface);
            border: 1px solid var(--border);
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #fff;
            cursor: pointer;
        }

        .nav-switch {
            position: absolute;
            opacity: 0;
            pointer-events: none;
        }

        .mobile-menu {
            max-height: 0;
            overflow: hidden;
            background: rgba(8, 12, 25, 0.97);
            transition: max-height 0.32s ease;
            border-bottom: 1px solid transparent;
            position: relative;
            z-index: 65;
        }

        .mobile-menu ul {
            list-style: none;
            margin: 0;
            padding: 14px 16px 22px;
        }

        .mobile-menu li {
            margin: 0;
        }

        .mobile-menu a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 13px 12px;
            font-size: 15px;
            color: var(--text-secondary);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .mobile-menu a:hover {
            color: #fff;
        }

        .nav-switch:checked~.mobile-menu {
            max-height: 460px;
            border-bottom-color: var(--border);
        }

        /* ---------------- 容器 ---------------- */
        .container {
            max-width: var(--max-content);
            margin: 0 auto;
            padding-left: 26px;
            padding-right: 26px;
            width: 100%;
        }

        /* ---------------- 文章页面主视觉 ---------------- */
        .article-page-hero {
            position: relative;
            background-image:
                linear-gradient(180deg, rgba(7, 10, 20, 0.76), rgba(8, 12, 25, 0.95)),
                url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid var(--border);
        }

        .article-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 15px;
            border-radius: 999px;
            background: rgba(77, 168, 255, 0.16);
            border: 1px solid rgba(77, 168, 255, 0.36);
            color: #bcdcff;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .article-page-hero .container {
            padding-top: 64px;
            padding-bottom: 42px;
        }

        .crumb-nav {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 30px;
            color: var(--text-faint);
            font-size: 13px;
        }

        .crumb-nav a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--text-secondary);
        }

        .crumb-nav i {
            font-size: 11px;
            opacity: 0.7;
        }

        .article-title-wrap {
            max-width: 880px;
            padding-top: 12px;
        }

        .article-title-wrap h1 {
            margin: 16px 0 10px;
            font-size: clamp(30px, 4.6vw, 52px);
            line-height: 1.18;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: #fff;
            text-shadow: 0 4px 25px rgba(0, 0, 0, 0.4);
        }

        .article-title-wrap .lead {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 760px;
            margin-top: 12px;
        }

        .article-meta-strip {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px 26px;
            margin-top: 28px;
            padding-top: 22px;
            border-top: 1px solid rgba(255, 255, 255, 0.09);
            color: var(--text-secondary);
            font-size: 13.5px;
        }

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

        .article-meta-strip i {
            color: var(--accent);
            width: 16px;
            text-align: center;
        }

        .article-meta-strip .tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 999px;
            background: var(--accent-soft);
            border: 1px solid rgba(255, 195, 77, 0.28);
            color: var(--accent);
            font-weight: 600;
        }

        .article-page-structure {
            padding: 52px 0 0;
        }

        .reading-wrap {
            max-width: var(--reading);
            margin: 0 auto;
            width: 100%;
            padding: 0 22px;
        }

        .article-body {
            background: var(--surface);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            border: 1px solid var(--border);
            border-radius: var(--r-lg);
            box-shadow: var(--shadow-md);
            padding: 40px 44px 48px;
            color: var(--text);
            word-break: break-word;
        }

        .article-body p {
            margin: 0 0 1.35em;
            line-height: 1.9;
            font-size: 16.5px;
            color: rgba(255, 255, 255, 0.87);
        }

        .article-body h1,
        .article-body h2,
        .article-body h3,
        .article-body h4 {
            margin: 1.6em 0 0.7em;
            color: #fff;
            line-height: 1.35;
            font-weight: 700;
        }

        .article-body h1 {
            font-size: 34px;
        }
        .article-body h2 {
            font-size: 28px;
            border-left: 4px solid var(--primary);
            padding-left: 15px;
            background: linear-gradient(90deg, rgba(77, 168, 255, 0.1), transparent);
        }
        .article-body h3 {
            font-size: 22px;
        }
        .article-body h4 {
            font-size: 18px;
        }

        .article-body ul,
        .article-body ol {
            margin: 0 0 1.5em;
            padding-left: 1.45em;
        }

        .article-body li {
            margin-bottom: 0.5em;
            line-height: 1.8;
        }

        .article-body a {
            text-decoration: underline;
            text-underline-offset: 4px;
        }

        .article-body blockquote {
            border-left: 3px solid var(--accent);
            background: rgba(255, 195, 77, 0.06);
            margin: 1.8em 0;
            padding: 16px 24px;
            color: rgba(255, 255, 255, 0.82);
            border-radius: 0 16px 16px 0;
        }

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

        .article-body img {
            display: block;
            max-width: 100%;
            margin: 2em auto;
            border-radius: 18px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border);
        }

        .article-body pre {
            background: rgba(0, 0, 0, 0.4);
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 20px;
            overflow: auto;
            font-size: 14px;
            line-height: 1.7;
        }

        .article-body code {
            font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
            background: rgba(77, 168, 255, 0.1);
            border-radius: 6px;
            padding: 2px 7px;
            color: #aad1ff;
            font-size: 0.92em;
        }

        .article-body pre code {
            background: transparent;
            padding: 0;
            color: inherit;
        }

        .article-body hr {
            border: none;
            height: 1px;
            background: var(--border);
            margin: 2.4em 0;
        }

        .article-footer-meta {
            margin-top: 30px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 18px;
            align-items: center;
        }

        .btn,
        button.btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 9px;
            height: 44px;
            padding: 0 24px;
            border-radius: 999px;
            font-size: 14.5px;
            font-weight: 700;
            border: 1px solid transparent;
            cursor: pointer;
            transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
            text-decoration: none;
            margin: 0;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), #3d7ee0);
            color: #fff;
            box-shadow: 0 8px 24px rgba(77, 168, 255, 0.24);
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, #73bbff, #4d8be8);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(77, 168, 255, 0.35);
        }

        .btn-accent {
            background: linear-gradient(135deg, #ffcf70, #f5a72f);
            color: #0a0f1f;
            box-shadow: 0 8px 26px rgba(255, 195, 77, 0.24);
        }

        .btn-accent:hover {
            color: #0a0f1f;
            transform: translateY(-2px);
            box-shadow: 0 14px 34px rgba(255, 195, 77, 0.34);
            background: linear-gradient(135deg, #ffd684, #fcb73f);
        }

        .btn-ghost {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
            border-color: var(--border-light);
        }

        .btn-ghost:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.3);
        }

        .btn:active,
        button.btn:active {
            transform: translateY(0);
            filter: brightness(0.95);
            box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.12), 0 8px 20px rgba(0, 0, 0, 0.25);
        }

        /* ---------------- 内容未找到 ---------------- */
        .notfound-panel {
            max-width: var(--reading);
            margin: 0 auto 52px;
            padding: 76px 28px;
            border-radius: var(--r-lg);
            background: var(--surface);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border);
            text-align: center;
            box-shadow: var(--shadow-md);
        }

        .notfound-panel .nf-icon {
            width: 78px;
            height: 78px;
            margin: 0 auto 26px;
            border-radius: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--accent-soft);
            color: var(--accent);
            font-size: 34px;
        }

        .notfound-panel h1 {
            font-size: 34px;
            color: #fff;
            margin: 0 0 14px;
        }

        .notfound-panel p {
            color: var(--text-secondary);
            max-width: 540px;
            margin: 0 auto 28px;
            font-size: 16px;
            line-height: 1.9;
        }

        .notfound-actions {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 8px;
        }

        /* ---------------- 相邻文章/栏目导航 ---------------- */
        .post-adjacent {
            max-width: var(--reading);
            margin: 30px auto 0;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
        }

        .adjacent-card {
            display: block;
            position: relative;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--r-md);
            padding: 22px 24px;
            transition: all 0.22s ease;
            text-decoration: none;
        }

        .adjacent-card span {
            display: block;
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 8px;
        }

        .adjacent-card strong {
            font-size: 17px;
            color: #fff;
            font-weight: 700;
        }

        .adjacent-card i {
            position: absolute;
            right: 20px;
            top: 26px;
            color: var(--text-faint);
            transition: color 0.2s ease;
        }

        .adjacent-card:hover {
            border-color: rgba(77, 168, 255, 0.42);
            transform: translateY(-3px);
            background: rgba(77, 168, 255, 0.06);
            color: #fff;
        }

        .adjacent-card:hover i {
            color: var(--primary);
        }

        /* ---------------- 延伸阅读 ---------------- */
        .section-block {
            padding: 72px 0 20px;
        }

        .section-head {
            display: flex;
            flex-wrap: wrap;
            align-items: flex-end;
            justify-content: space-between;
            gap: 14px;
            max-width: var(--reading);
            margin: 0 auto 26px;
        }

        .section-head h2 {
            font-size: 30px;
            font-weight: 800;
            color: #fff;
            margin: 0;
            line-height: 1.25;
        }

        .section-head p {
            color: var(--text-secondary);
            margin: 6px 0 0;
            max-width: 500px;
        }

        .more-link {
            font-size: 14px;
            white-space: nowrap;
        }
        .more-link i {
            margin-left: 4px;
        }

        .related-cards {
            max-width: var(--reading);
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .content-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--r-lg);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: transform 0.24s ease, border-color 0.24s ease, box-shadow 0.24s ease;
            text-decoration: none;
        }

        .content-card:hover {
            transform: translateY(-6px);
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(77, 168, 255, 0.38);
            box-shadow: var(--shadow-md), var(--shadow-blue);
        }

        .content-card .cover {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: #131b2e;
        }

        .content-card .cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
            transition: transform 0.5s ease;
        }

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

        .cover-tag {
            position: absolute;
            left: 12px;
            top: 12px;
            padding: 5px 11px;
            background: rgba(8, 12, 25, 0.7);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.16);
            border-radius: 999px;
            color: #fff;
            font-size: 12px;
            font-weight: 600;
        }

        .content-card .card-body {
            padding: 18px 18px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .content-card .card-body h3 {
            font-size: 18px;
            color: #fff;
            line-height: 1.45;
            margin: 0 0 10px;
            font-weight: 700;
        }

        .content-card .card-body p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.7;
            margin: 0 0 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }

        .card-read {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13.5px;
            font-weight: 600;
            color: var(--primary);
        }

        .card-read i {
            font-size: 11px;
        }

        .card-date {
            margin-top: 14px;
            padding-top: 12px;
            border-top: 1px solid var(--border);
            color: var(--text-faint);
            font-size: 12.5px;
            display: flex;
            justify-content: space-between;
        }

        /* ---------------- FAQ ---------------- */
        .faq-sec {
            max-width: var(--reading);
            margin: 0 auto;
            padding: 0 22px;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--r-md);
            transition: border-color 0.2s ease, background 0.2s ease;
        }

        .faq-item[open] {
            border-color: rgba(77, 168, 255, 0.38);
            background: rgba(77, 168, 255, 0.06);
        }

        .faq-item summary {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 20px;
            cursor: pointer;
            font-size: 15.5px;
            color: #fff;
            font-weight: 600;
            line-height: 1.5;
        }

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

        .faq-item .q-icon {
            width: 30px;
            height: 30px;
            flex: none;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 14px;
            font-weight: 700;
        }

        .faq-item .faq-toggle {
            margin-left: auto;
            color: var(--text-faint);
            font-size: 16px;
            transition: transform 0.2s ease, color 0.2s ease;
        }

        .faq-item[open] .faq-toggle {
            transform: rotate(45deg);
            color: var(--accent);
        }

        .faq-item .faq-body {
            padding: 0 20px 20px 64px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.85;
        }

        .faq-item .faq-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        /* ---------------- 底部 CTA ---------------- */
        .prefooter-cta {
            margin-top: 78px;
            padding: 50px 0;
            position: relative;
            background-image:
                linear-gradient(105deg, rgba(8, 12, 25, 0.92) 8%, rgba(20, 34, 62, 0.84) 63%, rgba(10, 16, 34, 0.92) 98%),
                url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .prefooter-cta .inner-cta {
            max-width: var(--reading);
            margin: 0 auto;
            padding: 10px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 28px;
        }

        .cta-title-text h2 {
            color: #fff;
            font-size: clamp(24px, 4vw, 40px);
            font-weight: 800;
            margin: 0 0 8px;
            line-height: 1.25;
        }

        .cta-title-text p {
            font-size: 15px;
            margin: 0;
            color: var(--text-secondary);
        }

        .cta-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            flex: none;
        }

        /* ---------------- 页脚 ---------------- */
        .site-footer {
            background: #05080f;
            padding-top: 52px;
            border-top: 1px solid rgba(255, 255, 255, 0.07);
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 28px 36px;
            align-items: start;
            margin-bottom: 44px;
        }

        .site-footer h4 {
            font-size: 20px;
            color: #fff;
            margin: 0 0 18px;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .site-footer h5 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin: 6px 0 12px;
        }

        .site-footer p {
            margin: 0;
            max-width: 330px;
            color: var(--text-faint);
            font-size: 13.5px;
            line-height: 1.85;
        }

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

        .footer-col li {
            margin-bottom: 9px;
        }

        .footer-col a {
            color: var(--text-secondary);
            font-size: 14px;
            display: flex;
            align-items: flex-start;
            gap: 8px;
            transition: color 0.2s ease, padding-left 0.2s ease;
        }

        .footer-col a i {
            font-size: 11px;
            margin-top: 7px;
            color: var(--primary);
        }

        .footer-col a:hover {
            color: var(--accent);
            padding-left: 3px;
        }

        .footer-sec {
            background: rgba(0, 0, 0, 0.28);
            border-top: 1px solid var(--border);
            padding: 22px 0;
        }

        .footer-bar {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }

        .footer-copy {
            color: var(--text-faint);
            font-size: 13px;
            letter-spacing: 0.02em;
        }

        .footer-trust {
            display: flex;
            gap: 22px;
            color: var(--text-faint);
            font-size: 13px;
            flex-wrap: wrap;
        }

        .footer-trust span {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }

        .footer-trust i {
            color: var(--primary);
        }

        /* ---------------- 响应式 ---------------- */
        @media (max-width: 992px) {
            .side-nav {
                display: none;
            }

            .site-main {
                margin-left: 0;
            }

            .mobile-nav-wrap {
                display: block;
                position: sticky;
                top: 0;
                z-index: 70;
            }

            .article-page-hero .container {
                padding-top: 38px;
                padding-bottom: 30px;
            }

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

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

            .article-body {
                padding: 30px 26px 36px;
            }
        }

        @media (max-width: 640px) {
            .container {
                padding-left: 18px;
                padding-right: 18px;
            }

            .article-body {
                padding: 20px 12px 28px;
                border-left: none;
                border-right: none;
                border-radius: 16px;
            }

            .post-adjacent {
                grid-template-columns: 1fr;
            }

            .adjacent-card {
                padding: 17px 18px;
            }

            .adjacent-card .btn-read {
                border-right-width: 0;
            }

            .related-cards {
                grid-template-columns: 1fr;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 26px;
            }

            .article-page-hero .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .crumb-nav {
                font-size: 12px;
                overflow-x: auto;
                white-space: nowrap;
            }

            .section-block {
                padding-top: 55px;
            }

            .notfound-panel {
                padding: 44px 18px;
            }
        }

        @media (max-width: 520px) {
            .article-title-wrap h1 {
                font-size: 28px;
            }

            .article-meta-strip {
                gap: 10px 16px;
                align-items: flex-start;
            }

            .article-meta-strip span {
                flex-wrap: wrap;
            }

            .article-body p {
                font-size: 16px;
            }

            .mobile-brand {
                font-size: 16px;
            }

            .prefooter-cta .inner-cta {
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-buttons {
                width: 100%;
            }

            .cta-buttons .btn {
                flex: 1;
            }

            .btn {
                padding: 0 18px;
                height: 44px;
            }
        }

/* roulang page: category1 */
:root {
            --ian-bg: #0a0f1f;
            --ian-bg-2: #0e172b;
            --ian-surface: rgba(255, 255, 255, 0.055);
            --ian-surface-2: rgba(255, 255, 255, 0.09);
            --ian-border: rgba(255, 255, 255, 0.12);
            --ian-line: rgba(255, 255, 255, 0.08);
            --ian-primary: #4da8ff;
            --ian-primary-soft: rgba(77, 168, 255, 0.14);
            --ian-accent: #ffc34d;
            --ian-lime: #c7f464;
            --ian-text: rgba(255, 255, 255, 0.94);
            --ian-sub: rgba(255, 255, 255, 0.7);
            --ian-weak: rgba(255, 255, 255, 0.42);
            --ian-radius: 18px;
            --ian-radius-sm: 12px;
            --ian-shadow: 0 18px 48px rgba(0, 0, 0, 0.32);
            --ian-shadow-soft: 0 10px 26px rgba(0, 0, 0, 0.22);
            --ian-nav-width: 240px;
            --ian-font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            overflow-x: hidden;
            background:
                radial-gradient(1200px 640px at 85% -5%, rgba(77, 168, 255, 0.15), transparent 62%),
                radial-gradient(960px 600px at -8% 25%, rgba(255, 195, 77, 0.06), transparent 55%),
                var(--ian-bg);
            color: var(--ian-text);
            font-family: var(--ian-font);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: var(--ian-primary);
            text-decoration: none;
            transition: color .25s ease, background .25s ease, border-color .25s ease, box-shadow .25s ease, transform .25s ease, opacity .25s ease;
        }

        a:hover {
            color: var(--ian-accent);
        }

        a:focus-visible,
        button:focus-visible,
        summary:focus-visible {
            outline: 2px solid var(--ian-accent);
            outline-offset: 3px;
            border-radius: 6px;
        }

        p {
            margin: 0 0 1.2em;
        }

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 26px;
        }

        .page-main {
            margin-left: var(--ian-nav-width);
            min-height: 80vh;
        }

        .site-footer {
            margin-left: var(--ian-nav-width);
        }

        .section-gap {
            padding-top: 80px;
        }

        .gift-section {
            padding-top: 78px;
        }

        .section-head {
            max-width: 840px;
            margin: 0 auto 46px;
            text-align: center;
        }

        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .4px;
            color: var(--ian-primary);
            background: var(--ian-primary-soft);
            border: 1px solid rgba(77, 168, 255, 0.24);
            border-radius: 999px;
            padding: 6px 13px;
            margin-bottom: 14px;
            text-transform: uppercase;
        }

        .section-title {
            margin: 0 0 10px;
            font-size: clamp(28px, 3.4vw, 38px);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: #fff;
        }

        .section-title span {
            color: var(--ian-primary);
        }

        .section-desc {
            color: var(--ian-sub);
            font-size: 16px;
            margin: 0;
        }

        .text-gradient {
            background: linear-gradient(100deg, #4da8ff 0%, #c7f464 92%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .icon-gradient {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 46px;
            height: 46px;
            border-radius: 13px;
            color: #fff;
            font-size: 21px;
            background: linear-gradient(135deg, rgba(77, 168, 255, 0.35), rgba(255, 195, 77, 0.18));
            border: 1px solid rgba(255, 255, 255, 0.14);
            box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 46px;
            min-width: 132px;
            padding: 0 22px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 700;
            line-height: 1;
            border: 1px solid transparent;
            background: transparent;
            cursor: pointer;
            transition: transform .25s ease, box-shadow .25s ease, background .25s ease, color .25s ease, border-color .25s ease;
            user-select: none;
            box-shadow: 0 6px 22px rgba(0, 0, 0, 0.2);
        }

        .btn i {
            font-size: 15px;
        }

        .btn-accent {
            color: #101522;
            background: linear-gradient(135deg, #ffd167, var(--ian-accent) 65%, #f5ad35);
            box-shadow: 0 8px 24px rgba(255, 195, 77, 0.28), 0 2px 6px rgba(0, 0, 0, 0.15);
        }

        .btn-accent:hover {
            color: #0a0f1f;
            transform: translateY(-2px);
            box-shadow: 0 14px 34px rgba(255, 195, 77, 0.38), 0 2px 8px rgba(0, 0, 0, 0.2);
        }

        .btn-accent:active {
            transform: translateY(0);
            box-shadow: inset 0 3px 12px rgba(117, 68, 0, 0.18);
        }

        .btn-ghost {
            color: #eef7ff;
            border-color: rgba(255, 255, 255, 0.28);
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }

        .btn-ghost:hover {
            color: #fff;
            border-color: var(--ian-primary);
            background: rgba(77, 168, 255, 0.2);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(77, 168, 255, 0.18);
        }

        .btn-white {
            background: #fff;
            color: #111827;
        }

        .btn-white:hover {
            color: #111827;
            transform: translateY(-2px);
        }

        .btn-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--ian-primary);
            font-weight: 600;
            min-height: 40px;
            padding: 0 4px;
        }

        .btn-link:hover {
            color: var(--ian-accent);
            gap: 9px;
        }

        .btn-lg {
            height: 54px;
            padding: 0 30px;
            font-size: 16px;
        }

        /* 左侧导航 */
        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            z-index: 500;
            display: flex;
            flex-direction: column;
            width: var(--ian-nav-width);
            padding: 30px 18px 22px;
            background: rgba(10, 16, 32, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-right: 1px solid rgba(255, 255, 255, 0.09);
            overflow-x: hidden;
            overflow-y: auto;
        }

        .side-nav-logo {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            padding: 4px 10px 18px;
            margin-bottom: 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 0;
            transition: none;
        }

        .side-nav-logo:hover {
            opacity: .9;
            color: inherit;
        }

        .logo-main {
            display: block;
            width: 100%;
            font-size: 17px;
            font-weight: 800;
            color: #fff;
            letter-spacing: .02em;
            line-height: 1.3;
        }

        .logo-sub {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 5px;
            color: rgba(255, 255, 255, 0.46);
            font-size: 12px;
            font-weight: 500;
            letter-spacing: .4px;
        }

        .logo-sub::before {
            content: "";
            width: 20px;
            height: 1px;
            background: linear-gradient(90deg, var(--ian-primary), transparent);
        }

        .side-nav-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 3px;
        }

        .side-nav-link {
            display: flex;
            align-items: center;
            gap: 11px;
            padding: 12px 13px;
            color: rgba(255, 255, 255, 0.76);
            font-size: 15px;
            font-weight: 500;
            border-radius: 12px;
            border-left: 3px solid transparent;
            transition: all .2s ease;
        }

        .side-nav-link .nav-icon {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            display: inline-block;
            color: transparent;
            background: rgba(255, 255, 255, 0.34);
            transition: background .2s ease, box-shadow .2s ease;
        }

        .side-nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }

        .side-nav-link:hover .nav-icon {
            background: var(--ian-primary);
            box-shadow: 0 0 0 4px rgba(77, 168, 255, 0.16);
        }

        .side-nav-link.active {
            color: var(--ian-accent);
            background: linear-gradient(90deg, rgba(255, 195, 77, 0.22), rgba(255, 195, 77, 0.05));
            border-left-color: var(--ian-accent);
            font-weight: 700;
        }

        .side-nav-link.active .nav-icon {
            background: var(--ian-accent);
            box-shadow: 0 0 0 5px rgba(255, 195, 77, 0.12);
        }

        .nav-login {
            margin-top: 18px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 0 0 10px 10px;
            padding-top: 17px;
            color: var(--ian-primary);
        }

        .nav-login:hover {
            color: var(--ian-accent);
            background: transparent;
        }

        .nav-register {
            color: var(--ian-accent);
        }

        .nav-register:hover {
            color: #fff;
            background: rgba(255, 195, 77, 0.16);
        }

        .side-nav-footer {
            margin-top: auto;
            padding-top: 22px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.36);
            letter-spacing: .8px;
            text-align: center;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .nav-mask {
            position: fixed;
            inset: 0;
            z-index: 490;
            background: rgba(4, 8, 18, 0.72);
            backdrop-filter: blur(2px);
            opacity: 0;
            visibility: hidden;
            transition: opacity .28s ease, visibility .28s ease;
        }

        body.nav-open .nav-mask {
            opacity: 1;
            visibility: visible;
        }

        .mobile-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 520;
            height: 64px;
            display: none;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            background: rgba(8, 13, 26, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .mobile-brand {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            color: #fff;
        }

        .mobile-brand-main {
            font-size: 16px;
            font-weight: 800;
        }

        .mobile-brand-sub {
            font-size: 11px;
            color: rgba(255, 255, 255, 0.44);
            margin-top: 2px;
        }

        .mobile-menu-toggle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.16);
            background: rgba(255, 255, 255, 0.05);
            color: #fff;
            font-size: 19px;
            cursor: pointer;
        }

        .mobile-menu-toggle:hover {
            background: rgba(255, 195, 77, 0.14);
            color: var(--ian-accent);
        }

        /* Hero */
        .category-hero {
            position: relative;
            isolation: isolate;
            padding: clamp(72px, 8.5vh, 112px) 0 clamp(70px, 7.5vh, 100px);
            overflow: hidden;
            background:
                linear-gradient(100deg, rgba(10, 15, 31, 0.97) 0%, rgba(10, 15, 31, 0.86) 42%, rgba(10, 15, 31, 0.62) 78%, rgba(10, 15, 31, 0.44) 100%),
                url("/assets/images/backpic/back-1.webp") center 30% / cover no-repeat;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .category-hero::after {
            content: "";
            position: absolute;
            right: -140px;
            top: -80px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(77, 168, 255, 0.2), transparent 68%);
            z-index: -1;
            pointer-events: none;
        }

        .hero-inner {
            display: grid;
            grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.78fr);
            gap: 50px;
            align-items: center;
        }

        .hero-copy {
            position: relative;
        }

        .hero-overline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 14px;
            border-radius: 999px;
            background: rgba(77, 168, 255, 0.12);
            border: 1px solid rgba(77, 168, 255, 0.3);
            color: var(--ian-primary);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: .5px;
        }

        .hero-overline i {
            font-size: 14px;
        }

        .hero-title {
            font-size: clamp(35px, 4.8vw, 60px);
            line-height: 1.16;
            font-weight: 800;
            color: #fff;
            margin: 20px 0 18px;
            letter-spacing: -0.035em;
        }

        .hero-title .text-gradient {
            display: inline-block;
            margin-top: 2px;
        }

        .hero-lead {
            max-width: 660px;
            font-size: 17px;
            color: rgba(255, 255, 255, 0.78);
            margin: 0 0 28px;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
            margin-bottom: 26px;
        }

        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 18px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .hero-trust li {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.72);
        }

        .hero-trust i {
            color: var(--ian-accent);
            font-size: 14px;
        }

        .hero-art {
            position: relative;
            max-width: 520px;
            margin-left: auto;
        }

        .hero-art-frame {
            position: relative;
            aspect-ratio: 4 / 3.2;
            border-radius: 24px;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.18);
            box-shadow: 0 26px 70px rgba(0, 0, 0, 0.42), 0 0 0 1px rgba(255, 255, 255, 0.04) inset;
            background: rgba(255, 255, 255, 0.04);
        }

        .hero-art-frame::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 15, 31, 0.12), rgba(10, 15, 31, 0.55));
            z-index: 1;
            pointer-events: none;
        }

        .hero-art-frame img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .hero-chip {
            position: absolute;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            border-radius: 15px;
            background: rgba(12, 19, 36, 0.86);
            border: 1px solid rgba(255, 255, 255, 0.16);
            padding: 10px 14px;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            box-shadow: var(--ian-shadow-soft);
            z-index: 2;
            font-size: 13px;
        }

        .hero-chip i {
            width: 30px;
            height: 30px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--ian-primary), #7ad2ff);
            color: #0a0f1f;
            font-size: 15px;
        }

        .hero-chip strong {
            display: block;
            font-size: 14px;
            line-height: 1.25;
            color: #fff;
        }

        .hero-chip span {
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.25;
            font-size: 12px;
        }

        .chip-top {
            top: 20px;
            left: -26px;
        }

        .chip-bottom {
            bottom: 24px;
            right: -16px;
        }

        /* 四大礼包入口 */
        .area-grid {
            display: grid;
            grid-template-columns: repeat(4, minmax(0, 1fr));
            gap: 22px;
        }

        .area-card {
            position: relative;
            display: block;
            padding: 26px 22px 22px;
            border-radius: var(--ian-radius);
            background: linear-gradient(150deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.035));
            border: 1px solid var(--ian-border);
            min-height: 230px;
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
            overflow: hidden;
            transition: transform .3s ease, border-color .3s ease, background .3s ease, box-shadow .3s ease;
        }

        .area-card::after {
            content: "";
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(77, 168, 255, 0.2), transparent 70%);
            position: absolute;
            right: -36px;
            bottom: -42px;
            transition: opacity .3s;
            opacity: .6;
        }

        .area-card:hover {
            transform: translateY(-6px);
            border-color: rgba(77, 168, 255, 0.45);
            box-shadow: 0 22px 48px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(77, 168, 255, 0.08);
            background: linear-gradient(150deg, rgba(77, 168, 255, 0.17), rgba(255, 255, 255, 0.05));
        }

        .area-card:hover::after {
            opacity: .9;
        }

        .area-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(77, 168, 255, 0.26), rgba(77, 168, 255, 0.02));
            border: 1px solid rgba(77, 168, 255, 0.32);
            color: var(--ian-primary);
            font-size: 21px;
            margin-bottom: 17px;
        }

        .area-card:nth-child(2) .area-icon {
            background: linear-gradient(135deg, rgba(255, 195, 77, 0.3), rgba(255, 195, 77, 0.02));
            border-color: rgba(255, 195, 77, 0.4);
            color: var(--ian-accent);
        }

        .area-card:nth-child(3) .area-icon {
            background: linear-gradient(135deg, rgba(199, 244, 100, 0.24), rgba(199, 244, 100, 0.02));
            border-color: rgba(199, 244, 100, 0.34);
            color: var(--ian-lime);
        }

        .area-card:nth-child(4) .area-icon {
            background: linear-gradient(135deg, rgba(255, 160, 130, 0.24), rgba(255, 160, 130, 0.02));
            border-color: rgba(255, 170, 140, 0.3);
            color: #ff9a8b;
        }

        .area-title {
            font-size: 19px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 10px;
            line-height: 1.35;
        }

        .area-text {
            margin: 0 0 15px;
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.66);
            min-height: 48px;
        }

        .area-cta {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            font-size: 14px;
            font-weight: 700;
            color: var(--ian-primary);
        }

        .area-card:hover .area-cta {
            color: var(--ian-accent);
            gap: 10px;
        }

        /* 热推礼包 */
        .gift-grid {
            margin-bottom: -24px;
        }

        .gift-cell {
            margin-bottom: 24px;
        }

        .gift-card {
            position: relative;
            height: 100%;
            display: flex;
            flex-direction: column;
            border-radius: 18px;
            background: linear-gradient(150deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.025));
            border: 1px solid rgba(255, 255, 255, 0.12);
            overflow: hidden;
            box-shadow: 0 14px 38px rgba(0, 0, 0, 0.25);
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
        }

        .gift-card:hover {
            transform: translateY(-5px);
            border-color: rgba(77, 168, 255, 0.45);
            box-shadow: 0 22px 52px rgba(0, 0, 0, 0.34), 0 0 18px rgba(77, 168, 255, 0.1);
        }

        .gift-media {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: rgba(255, 255, 255, 0.04);
        }

        .gift-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .55s ease, filter .55s ease;
        }

        .gift-card:hover .gift-media img {
            transform: scale(1.06);
            filter: brightness(1.1);
        }

        .gift-media::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 52%;
            background: linear-gradient(180deg, transparent, rgba(10, 15, 31, 0.72));
        }

        .gift-tag-wrap {
            position: absolute;
            left: 14px;
            top: 14px;
            display: flex;
            flex-wrap: wrap;
            gap: 7px;
            z-index: 2;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 11px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 700;
            background: rgba(10, 15, 31, 0.72);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.18);
            backdrop-filter: blur(7px);
            -webkit-backdrop-filter: blur(7px);
        }

        .tag-lime {
            color: #1a1f0f;
            background: rgba(199, 244, 100, 0.86);
            border-color: rgba(199, 244, 100, 0.5);
        }

        .tag-blue {
            color: #e9f6ff;
            background: rgba(77, 168, 255, 0.85);
            border-color: rgba(77, 168, 255, 0.7);
        }

        .tag-gold {
            color: #221805;
            background: rgba(255, 195, 77, 0.9);
            border-color: rgba(255, 195, 77, 0.7);
        }

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

        .gift-title {
            font-size: 20px;
            line-height: 1.35;
            font-weight: 700;
            color: #fff;
            margin: 0 0 10px;
        }

        .gift-desc {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.66);
            margin: 0 0 16px;
        }

        .gift-footer {
            margin-top: auto;
            padding-top: 4px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
        }

        .gift-meta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            color: var(--ian-weak);
        }

        .gift-meta i {
            color: var(--ian-accent);
        }

        .gift-card-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            min-height: 36px;
            padding: 0 13px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 700;
            color: #0c111e;
            background: linear-gradient(135deg, #ffd167, #ffb43a);
            box-shadow: 0 6px 16px rgba(255, 195, 77, 0.2);
            transition: transform .2s, box-shadow .2s;
        }

        .gift-card-btn:hover {
            color: #020409;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(255, 195, 77, 0.34);
        }

        /* 流程 */
        .process-section {
            background:
                radial-gradient(800px 400px at 90% -20%, rgba(77, 168, 255, 0.1), transparent 60%),
                rgba(7, 12, 24, 0.5);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            margin-top: 86px;
            padding: 86px 0;
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, minmax(0, 1fr));
            gap: 20px;
        }

        .process-card {
            position: relative;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.13);
            border-radius: 18px;
            padding: 24px 20px 20px;
            min-height: 180px;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            transition: background .3s, border-color .3s, transform .3s;
        }

        .process-card:hover {
            transform: translateY(-4px);
            background: rgba(77, 168, 255, 0.1);
            border-color: rgba(77, 168, 255, 0.38);
        }

        .process-no {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 11px;
            font-size: 15px;
            font-weight: 800;
            color: var(--ian-accent);
            background: rgba(255, 195, 77, 0.13);
            border: 1px solid rgba(255, 195, 77, 0.3);
            margin-bottom: 18px;
        }

        .process-card h3 {
            margin: 0 0 8px;
            font-size: 17px;
            color: #fff;
            line-height: 1.4;
        }

        .process-card p {
            margin: 0;
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.68);
        }

        /* 会员对比 */
        .compare-section {
            padding-top: 86px;
        }

        .compare-wrap {
            border-radius: 22px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.12);
            box-shadow: var(--ian-shadow-soft);
            overflow: hidden;
        }

        .compare-scroll {
            overflow-x: auto;
        }

        .compare-table {
            width: 100%;
            min-width: 760px;
            border-collapse: separate;
            border-spacing: 0;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
        }

        .compare-table th {
            text-align: left;
            padding: 20px 22px;
            font-size: 16px;
            line-height: 1.45;
            border-bottom: 1px solid rgba(255, 255, 255, 0.14);
            background: rgba(255, 255, 255, 0.045);
            color: #fff;
            white-space: nowrap;
        }

        .compare-table th .plan-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 10px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 700;
            margin-left: 6px;
            background: rgba(255, 255, 255, 0.12);
            color: rgba(255, 255, 255, 0.82);
        }

        .compare-table th.member-th {
            background: linear-gradient(135deg, rgba(255, 195, 77, 0.22), rgba(255, 195, 77, 0.08));
            color: var(--ian-accent);
        }

        .compare-table th.member-th .plan-badge {
            background: linear-gradient(135deg, var(--ian-accent), #ffb43a);
            color: #1e1503;
        }

        .compare-table td {
            padding: 16px 22px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.09);
            line-height: 1.65;
        }

        .compare-table tr:last-child td {
            border-bottom: 0;
        }

        .compare-table td:first-child {
            color: rgba(255, 255, 255, 0.82);
            font-weight: 600;
            width: 28%;
            background: rgba(255, 255, 255, 0.025);
        }

        .compare-table .normal-cell {
            color: rgba(255, 255, 255, 0.62);
        }

        .compare-table .member-cell {
            color: var(--ian-accent);
            font-weight: 600;
        }

        .compare-table tbody tr:hover td {
            background: rgba(255, 255, 255, 0.055);
        }

        .compare-note {
            display: flex;
            align-items: center;
            gap: 9px;
            margin: 22px 0 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.58);
        }

        .compare-note i {
            color: var(--ian-primary);
        }

        /* FAQ */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: rgba(255, 255, 255, 0.045);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 16px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: background .25s ease, border-color .25s ease;
        }

        .faq-item[open] {
            background: rgba(77, 168, 255, 0.08);
            border-color: rgba(77, 168, 255, 0.3);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
        }

        .faq-item summary {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 20px 22px;
            cursor: pointer;
            color: #fff;
            font-size: 16px;
            line-height: 1.55;
            font-weight: 600;
            transition: color .2s;
        }

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

        .faq-item summary:hover {
            color: var(--ian-accent);
        }

        .faq-q-num {
            display: inline-flex;
            flex: 0 0 auto;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            border-radius: 10px;
            background: rgba(77, 168, 255, 0.2);
            color: var(--ian-primary);
            font-size: 13px;
            font-weight: 800;
        }

        .faq-item[open] .faq-q-num {
            background: var(--ian-accent);
            color: #101522;
        }

        .faq-question {
            flex: 1;
        }

        .faq-plus {
            flex: 0 0 auto;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.22);
            color: rgba(255, 255, 255, 0.8);
            font-size: 16px;
            transition: transform .35s ease, background .25s ease;
        }

        .faq-item[open] .faq-plus {
            transform: rotate(45deg);
            background: rgba(255, 195, 77, 0.16);
            border-color: rgba(255, 195, 77, 0.5);
            color: var(--ian-accent);
        }

        .faq-answer {
            padding: 0 22px 20px 68px;
            color: rgba(255, 255, 255, 0.72);
            font-size: 14.5px;
            line-height: 1.85;
        }

        .faq-answer p {
            margin-bottom: 0;
        }

        /* CTA */
        .cta-band {
            margin-top: 88px;
            padding: 64px 0;
            position: relative;
            background:
                linear-gradient(100deg, rgba(10, 15, 31, 0.94), rgba(10, 15, 31, 0.74)),
                url("/assets/images/backpic/back-3.webp") center / cover no-repeat;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 28px;
        }

        .cta-title {
            font-size: clamp(25px, 3vw, 34px);
            font-weight: 800;
            line-height: 1.25;
            color: #fff;
            margin: 0 0 10px;
        }

        .cta-desc {
            color: rgba(255, 255, 255, 0.68);
            font-size: 15px;
            margin: 0;
        }

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

        /* Footer */
        .site-footer {
            background: rgba(5, 9, 18, 0.5);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 64px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.3fr;
            gap: 40px;
            padding-bottom: 42px;
        }

        .footer-brand h4 {
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            margin: 0 0 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand h4 i {
            color: var(--ian-primary);
        }

        .footer-brand p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            line-height: 1.85;
            max-width: 420px;
            margin-bottom: 0;
        }

        .footer-col h5 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin: 0 0 14px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 7px;
        }

        .footer-col ul a {
            color: rgba(255, 255, 255, 0.58);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 7px;
            transition: color .2s, transform .2s;
        }

        .footer-col ul a i {
            color: rgba(255, 255, 255, 0.26);
            font-size: 12px;
        }

        .footer-col ul a:hover {
            color: var(--ian-accent);
            transform: translateX(2px);
        }

        .footer-sec {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 16px 0;
        }

        .footer-bar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px 18px;
            min-height: 46px;
        }

        .footer-copy {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.52);
        }

        .footer-trust {
            display: flex;
            align-items: center;
            gap: 18px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.52);
        }

        .footer-trust span {
            display: inline-flex;
            color: rgba(255, 255, 255, 0.52);
            gap: 7px;
            align-items: center;
        }

        .footer-trust i {
            color: var(--ian-primary);
        }

        /* 响应式 */
        @media screen and (max-width: 1140px) {
            .area-grid {
                grid-template-columns: repeat(2, minmax(0, 1fr));
            }

            .process-grid {
                grid-template-columns: repeat(2, minmax(0, 1fr));
            }

            .hero-chip.chip-top {
                left: -10px;
            }

            .hero-chip.chip-bottom {
                right: -8px;
            }
        }

        @media screen and (max-width: 991px) {
            .side-nav {
                top: 64px;
                left: 0;
                height: calc(100vh - 64px);
                width: min(300px, 82vw);
                transform: translateX(-105%);
                transition: transform .3s ease;
                box-shadow: 12px 0 38px rgba(0, 0, 0, 0.35);
                background: rgba(7, 12, 24, 0.95);
            }

            body.nav-open .side-nav {
                transform: translateX(0);
            }

            .mobile-header {
                display: flex;
            }

            .nav-mask {
                z-index: 510;
            }

            .mobile-menu-toggle {
                display: inline-flex;
            }

            .page-main,
            .site-footer {
                margin-left: 0;
            }

            .page-main {
                padding-top: 64px;
            }

            .category-hero {
                padding-top: 54px;
            }

            .hero-inner {
                grid-template-columns: 1fr;
                gap: 34px;
            }

            .hero-art {
                margin-left: 0;
                max-width: 100%;
            }

            .hero-chip.chip-top {
                left: 12px;
            }

            .hero-chip.chip-bottom {
                right: 12px;
            }

            .section-gap {
                padding-top: 58px;
            }

            .gift-section {
                padding-top: 60px;
            }

            .compare-section,
            .process-section {
                padding-top: 62px;
                padding-bottom: 62px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }

        @media screen and (max-width: 639px) {
            .container {
                padding: 0 18px;
            }

            .hero-lead {
                font-size: 16px;
            }

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

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

            .area-text {
                min-height: 0;
            }

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

            .compare-scroll {
                margin: 0 -6px;
            }

            .compare-table {
                min-width: 720px;
            }

            .faq-answer {
                padding-left: 22px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 26px;
            }

            .footer-brand p {
                max-width: 100%;
            }

            .footer-bar {
                flex-direction: column;
                justify-content: center;
                text-align: center;
            }

            .cta-inner {
                text-align: center;
                justify-content: center;
            }

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

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

            .hero-trust {
                flex-direction: column;
                gap: 8px;
            }
        }

        @media screen and (max-width: 380px) {
            .mobile-header {
                padding: 0 14px;
            }

            .logo-main {
                font-size: 15px;
            }

            .gift-body {
                padding: 18px 14px 14px;
            }

            .gift-footer {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category2 */
:root {
        --ian-primary: #4da8ff;
        --ian-primary-deep: #286fce;
        --ian-primary-soft: rgba(77, 168, 255, 0.14);
        --ian-accent: #ffc34d;
        --ian-accent-soft: rgba(255, 195, 77, 0.15);
        --ian-lime: #bfff5e;
        --ian-bg: #060a14;
        --ian-surface: #0b1222;
        --ian-panel: #101b31;
        --ian-glass: rgba(255, 255, 255, 0.055);
        --ian-glass-strong: rgba(255, 255, 255, 0.09);
        --ian-border: rgba(255, 255, 255, 0.1);
        --ian-text: #f4f7ff;
        --ian-muted: rgba(255, 255, 255, 0.65);
        --ian-dim: rgba(255, 255, 255, 0.4);
        --ian-shadow: 0 18px 44px rgba(0, 0, 0, 0.36);
        --ian-radius: 20px;
        --ian-radius-sm: 14px;
        --ian-side-w: 252px;
        --ian-space: clamp(56px, 7vw, 100px);
        --ian-font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    }

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

    html { scroll-behavior: smooth; }

    body {
        margin: 0;
        padding: 0;
        background: var(--ian-bg);
        color: var(--ian-text);
        font-family: var(--ian-font);
        font-size: 16px;
        line-height: 1.75;
        -webkit-font-smoothing: antialiased;
        background-image: radial-gradient(circle at 18% 8%, rgba(77, 168, 255, 0.06), transparent 30%), radial-gradient(circle at 90% 20%, rgba(255, 195, 77, 0.04), transparent 25%);
    }

    h1, h2, h3, h4, h5, h6 {
        margin: 0;
        color: var(--ian-text);
        line-height: 1.2;
        font-weight: 800;
    }

    p { margin: 0 0 1em; }

    a { color: inherit; text-decoration: none; }
    a:hover { color: var(--ian-primary); }
    img { max-width: 100%; display: block; }
    ul { margin: 0; padding: 0; list-style: none; }
    button { font-family: inherit; }

    ::selection { background: rgba(77, 168, 255, 0.3); color: #fff; }

    a:focus-visible,
    button:focus-visible,
    summary:focus-visible {
        outline: 2px solid rgba(255, 195, 77, 0.75);
        outline-offset: 3px;
        border-radius: 6px;
    }

    .container-main {
        max-width: 1300px;
        width: 100%;
        margin: 0 auto;
        padding-left: clamp(18px, 4vw, 44px);
        padding-right: clamp(18px, 4vw, 44px);
    }

    .section { padding: var(--ian-space) 0; }

    .section-head {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        gap: 20px;
        margin-bottom: 36px;
        flex-wrap: wrap;
    }

    .section-kicker {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        color: var(--ian-accent);
        font-size: 13px;
        font-weight: 700;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        margin-bottom: 10px;
    }

    .section-kicker i { font-size: 14px; }

    .section-title {
        font-size: clamp(26px, 3vw, 36px);
        font-weight: 800;
        letter-spacing: -0.02em;
    }

    .section-desc {
        max-width: 720px;
        color: var(--ian-muted);
        font-size: 16px;
        margin: 12px 0 0;
    }

    .glass-card {
        background: linear-gradient(150deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.03));
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: var(--ian-radius);
        box-shadow: var(--ian-shadow);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 9px;
        min-height: 46px;
        padding: 0 24px;
        border-radius: 999px;
        border: 1px solid transparent;
        font-weight: 700;
        font-size: 15px;
        line-height: 1;
        cursor: pointer;
        transition: all 0.25s ease;
        background: transparent;
        color: var(--ian-text);
    }

    .btn-main {
        background: linear-gradient(135deg, #ffca5e 0%, #ffb02e 100%);
        color: #171616;
        box-shadow: 0 8px 28px rgba(255, 195, 77, 0.3);
    }
    .btn-main:hover {
        color: #171616;
        transform: translateY(-2px);
        box-shadow: 0 12px 34px rgba(255, 195, 77, 0.42);
    }
    .btn-main:active {
        transform: translateY(0);
        box-shadow: inset 0 3px 8px rgba(0, 0, 0, 0.22);
    }

    .btn-ghost {
        background: rgba(255, 255, 255, 0.05);
        border-color: rgba(255, 255, 255, 0.18);
        color: var(--ian-text);
        backdrop-filter: blur(4px);
    }
    .btn-ghost:hover {
        color: var(--ian-primary);
        border-color: rgba(77, 168, 255, 0.65);
        background: rgba(77, 168, 255, 0.12);
        transform: translateY(-2px);
    }
    .btn-ghost:active { transform: translateY(0); }

    .btn-sm { min-height: 36px; padding: 0 17px; font-size: 13px; border-radius: 20px; }

    .tag {
        display: inline-flex;
        align-items: center;
        padding: 4px 12px;
        font-size: 12px;
        font-weight: 700;
        border-radius: 999px;
        background: rgba(77, 168, 255, 0.16);
        color: var(--ian-primary);
        border: 1px solid rgba(77, 168, 255, 0.26);
    }

    .tag-gold {
        background: var(--ian-accent-soft);
        color: var(--ian-accent);
        border-color: rgba(255, 195, 77, 0.28);
    }

    .tag-lime {
        background: rgba(191, 255, 94, 0.13);
        color: #c8ff87;
        border-color: rgba(191, 255, 94, 0.24);
    }

    .side-nav {
        position: fixed;
        top: 0;
        left: 0;
        width: var(--ian-side-w);
        height: 100vh;
        background: linear-gradient(180deg, rgba(9, 15, 28, 0.96), rgba(7, 11, 22, 0.98));
        border-right: 1px solid rgba(255, 255, 255, 0.08);
        display: flex;
        flex-direction: column;
        padding: 24px 16px 18px;
        z-index: 120;
        overflow-y: auto;
    }

    .side-nav-logo {
        display: block;
        padding: 6px 8px 16px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .logo-main {
        display: block;
        font-size: 18px;
        font-weight: 800;
        letter-spacing: 0.02em;
        color: #ffffff;
        line-height: 1.3;
    }

    .logo-sub {
        display: block;
        margin-top: 4px;
        font-size: 11px;
        letter-spacing: 0.06em;
        color: rgba(255, 255, 255, 0.38);
    }

    .side-nav-links {
        margin: 18px 0 0;
        padding: 0;
        display: flex;
        flex-direction: column;
        gap: 6px;
    }

    .side-nav-link {
        position: relative;
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 12px 14px;
        border-radius: 14px;
        color: rgba(255, 255, 255, 0.62);
        font-size: 15px;
        font-weight: 500;
        transition: all 0.22s ease;
        border-left: 3px solid transparent;
    }

    .side-nav-link .nav-icon {
        width: 8px;
        height: 8px;
        flex: 0 0 8px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.3);
        transition: all 0.22s ease;
    }

    .side-nav-link:hover {
        color: #fff;
        background: rgba(255, 255, 255, 0.05);
        transform: translateX(2px);
    }

    .side-nav-link.active {
        background: linear-gradient(90deg, rgba(77, 168, 255, 0.16), rgba(77, 168, 255, 0.02));
        color: #ffffff;
        font-weight: 700;
        border-left-color: var(--ian-accent);
    }

    .side-nav-link.active .nav-icon {
        background: var(--ian-accent);
        box-shadow: 0 0 12px rgba(255, 195, 77, 0.8);
    }

    .side-nav-copy {
        font-size: 13px;
        color: rgba(255, 255, 255, 0.62);
    }

    .side-nav-copy small {
        display: block;
        color: rgba(255, 255, 255, 0.34);
        font-size: 12px;
        margin-top: 3px;
    }

    .side-user {
        margin: 18px 0 10px;
        padding: 14px;
        background: rgba(255, 255, 255, 0.045);
        border: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: 16px;
        display: flex;
        gap: 11px;
        align-items: center;
    }

    .side-user-avatar {
        width: 38px;
        height: 38px;
        border-radius: 50%;
        flex: 0 0 38px;
        background: rgba(77, 168, 255, 0.18);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--ian-primary);
        border: 1px solid rgba(77, 168, 255, 0.25);
    }

    .side-nav-footer {
        margin-top: auto;
        padding: 14px 6px 2px;
        font-size: 12px;
        color: rgba(255, 255, 255, 0.32);
        letter-spacing: 0.04em;
        border-top: 1px solid rgba(255, 255, 255, 0.07);
    }

    .main-wrap,
    .site-footer {
        margin-left: var(--ian-side-w);
    }

    .main-wrap { min-height: 100vh; overflow: hidden; }

    .mobile-header {
        display: none;
    }

    .mobile-panel {
        display: none;
    }

    /* Category 2 Hero */
    .category-hero {
        position: relative;
        display: flex;
        align-items: center;
        min-height: 570px;
        padding: 64px 0 88px;
        background:
            radial-gradient(52% 80% at 18% 15%, rgba(77, 168, 255, 0.2), transparent 62%),
            radial-gradient(45% 65% at 86% 20%, rgba(255, 195, 77, 0.13), transparent 55%),
            linear-gradient(180deg, rgba(6, 10, 20, 0.72), rgba(6, 10, 20, 0.96)),
            url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .category-hero::after {
        content: "";
        position: absolute;
        inset: auto 0 0 0;
        height: 150px;
        pointer-events: none;
        background: linear-gradient(180deg, transparent, var(--ian-bg));
    }

    .crumb {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        color: var(--ian-muted);
        margin-bottom: 30px;
        flex-wrap: wrap;
    }

    .crumb a { color: rgba(255, 255, 255, 0.5); }
    .crumb a:hover { color: var(--ian-primary); }
    .crumb i { font-size: 10px; color: rgba(255, 255, 255, 0.3); }

    .hero-grid {
        display: grid;
        grid-template-columns: 1.15fr 0.85fr;
        gap: 34px;
        align-items: center;
        position: relative;
        z-index: 2;
    }

    .hero-eyebrow {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(77, 168, 255, 0.12);
        border: 1px solid rgba(77, 168, 255, 0.24);
        padding: 6px 14px;
        border-radius: 999px;
        color: #8cc8ff;
        font-size: 13px;
        font-weight: 700;
        margin-bottom: 22px;
    }

    .hero-title {
        font-size: clamp(34px, 4.6vw, 58px);
        font-weight: 800;
        line-height: 1.15;
        letter-spacing: -0.03em;
        margin-bottom: 18px;
    }

    .hero-title .suffix {
        color: transparent;
        background: linear-gradient(90deg, var(--ian-primary), #8ac9ff);
        -webkit-background-clip: text;
        background-clip: text;
    }

    .hero-text {
        color: rgba(255, 255, 255, 0.75);
        font-size: 17px;
        max-width: 620px;
        margin-bottom: 28px;
    }

    .hero-actions {
        display: flex;
        flex-wrap: wrap;
        gap: 14px;
        margin-bottom: 26px;
    }

    .hero-points {
        display: flex;
        flex-wrap: wrap;
        gap: 22px;
        color: rgba(255, 255, 255, 0.55);
        font-size: 13px;
    }

    .hero-points li {
        display: flex;
        align-items: center;
        gap: 7px;
    }

    .hero-points i { color: var(--ian-lime); font-size: 12px; }

    .hero-count-card {
        background: linear-gradient(150deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.03));
        border: 1px solid rgba(255, 255, 255, 0.13);
        border-radius: 24px;
        padding: 28px;
        box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        position: relative;
        overflow: hidden;
    }

    .hero-count-card::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 1px;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.5), transparent);
    }

    .count-label {
        display: flex;
        align-items: center;
        gap: 9px;
        color: rgba(255, 255, 255, 0.55);
        font-size: 13px;
        font-weight: 600;
        margin-bottom: 12px;
    }

    .count-label i { color: var(--ian-accent); }

    .count-timer {
        font-size: 42px;
        font-weight: 800;
        color: #fff;
        letter-spacing: 0.04em;
        font-variant-numeric: tabular-nums;
        display: flex;
        align-items: baseline;
    }

    .count-timer small {
        font-size: 14px;
        font-weight: 600;
        color: rgba(255, 255, 255, 0.4);
        margin-left: 8px;
    }

    .count-divider {
        height: 1px;
        background: rgba(255, 255, 255, 0.09);
        margin: 22px 0;
    }

    .next-launch strong {
        display: block;
        font-size: 21px;
        margin-top: 10px;
        margin-bottom: 8px;
    }

    .next-launch p {
        color: rgba(255, 255, 255, 0.55);
        font-size: 14px;
        margin-bottom: 22px;
    }

    /* Quick stats */
    .quick-stats {
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        background: rgba(255, 255, 255, 0.015);
    }

    .quick-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        border: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: 22px;
        overflow: hidden;
        background: rgba(255, 255, 255, 0.025);
    }

    .stat-cell {
        padding: 24px 22px;
        position: relative;
        display: flex;
        align-items: center;
        gap: 16px;
    }

    .stat-cell:not(:last-child) { border-right: 1px solid rgba(255, 255, 255, 0.07); }

    .stat-icon {
        width: 48px;
        height: 48px;
        flex: 0 0 48px;
        border-radius: 16px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 20px;
        background: rgba(77, 168, 255, 0.13);
        color: var(--ian-primary);
        border: 1px solid rgba(77, 168, 255, 0.18);
    }

    .stat-icon.gold-icon { background: var(--ian-accent-soft); color: var(--ian-accent); border-color: rgba(255, 195, 77, 0.2); }

    .stat-cell b {
        display: block;
        font-size: 24px;
        line-height: 1.2;
        color: #fff;
        letter-spacing: -0.02em;
    }

    .stat-cell small {
        color: rgba(255, 255, 255, 0.5);
        font-size: 13px;
    }

    /* Schedule */
    .schedule-head-note {
        display: flex;
        align-items: center;
        gap: 10px;
        color: var(--ian-muted);
        font-size: 13px;
        margin-bottom: 26px;
        padding: 12px 16px;
        background: rgba(255, 255, 255, 0.035);
        border: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: 14px;
    }

    .schedule-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 22px;
    }

    .day-card {
        background: linear-gradient(165deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.025));
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 22px;
        padding: 24px;
        position: relative;
        overflow: hidden;
        transition: transform 0.25s ease, box-shadow 0.3s ease;
    }

    .day-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 24px 50px rgba(0, 0, 0, 0.4);
        border-color: rgba(77, 168, 255, 0.25);
    }

    .day-card::before {
        content: "";
        position: absolute;
        top: 0; left: 0; right: 0;
        height: 3px;
        background: linear-gradient(90deg, var(--ian-primary), transparent);
        opacity: 0.8;
    }

    .day-card.is-today::before { background: linear-gradient(90deg, var(--ian-accent), var(--ian-primary)); }

    .day-card-head {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin-bottom: 18px;
        padding-bottom: 16px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .day-card-head h3 { font-size: 19px; font-weight: 700; }

    .day-card-head span {
        font-size: 12px;
        color: var(--ian-accent);
        background: var(--ian-accent-soft);
        border-radius: 999px;
        padding: 4px 12px;
        border: 1px solid rgba(255, 195, 77, 0.22);
        font-weight: 700;
    }

    .schedule-item {
        display: flex;
        gap: 16px;
        align-items: flex-start;
        padding: 10px 0;
        border-bottom: 1px dashed rgba(255, 255, 255, 0.07);
    }

    .schedule-item:last-child { border-bottom: 0; padding-bottom: 4px; }

    .schedule-time {
        flex: 0 0 56px;
        text-align: right;
    }

    .schedule-time strong {
        display: block;
        font-size: 17px;
        color: #fff;
        font-weight: 800;
        line-height: 1.2;
        font-variant-numeric: tabular-nums;
    }

    .schedule-time small {
        color: rgba(255, 255, 255, 0.4);
        font-size: 11px;
    }

    .schedule-info h4 {
        font-size: 15px;
        font-weight: 700;
        margin-bottom: 4px;
    }

    .schedule-info p {
        margin: 0;
        color: rgba(255, 255, 255, 0.45);
        font-size: 13px;
        line-height: 1.5;
    }

    .schedule-info .mini-status {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        margin-top: 6px;
        font-size: 12px;
        color: #b9ff6c;
    }

    .schedule-info .mini-status .dot {
        width: 6px;
        height: 6px;
        border-radius: 50%;
        background: var(--ian-lime);
        box-shadow: 0 0 8px rgba(191, 255, 94, 0.6);
    }

    .schedule-info .mini-status.wait { color: var(--ian-accent); }
    .schedule-info .mini-status.wait .dot { background: var(--ian-accent); box-shadow: 0 0 8px rgba(255, 195, 77, 0.5); }

    /* Featured cards */
    .featured-area {
        background: linear-gradient(180deg, transparent, rgba(77, 168, 255, 0.025), transparent);
    }

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

    .featured-card {
        position: relative;
        border-radius: 22px;
        overflow: hidden;
        background: #0d1626;
        border: 1px solid rgba(255, 255, 255, 0.09);
        transition: transform 0.28s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    }

    .featured-card:hover {
        transform: translateY(-6px);
        box-shadow: 0 28px 60px rgba(0, 0, 0, 0.4);
        border-color: rgba(77, 168, 255, 0.3);
    }

    .featured-media {
        height: 240px;
        overflow: hidden;
        position: relative;
    }

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

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

    .featured-media::after {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, transparent 48%, rgba(6, 10, 20, 0.9));
    }

    .featured-tag {
        position: absolute;
        left: 16px;
        top: 16px;
        z-index: 3;
    }

    .featured-body {
        padding: 24px 24px 28px;
    }

    .featured-body h3 {
        font-size: 20px;
        margin-bottom: 8px;
    }

    .featured-body p {
        color: rgba(255, 255, 255, 0.55);
        font-size: 14px;
        margin-bottom: 18px;
    }

    .featured-meta {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        flex-wrap: wrap;
    }

    .text-link {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        color: var(--ian-primary);
        font-weight: 700;
        font-size: 14px;
        transition: gap 0.2s ease;
    }
    .text-link:hover { color: var(--ian-accent); gap: 12px; }

    /* Benefit grid */
    .benefit-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }

    .benefit-card {
        background: rgba(255, 255, 255, 0.035);
        border: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: 20px;
        padding: 26px 22px;
        transition: all 0.25s ease;
        position: relative;
    }

    .benefit-card:hover {
        background: rgba(255, 255, 255, 0.06);
        border-color: rgba(77, 168, 255, 0.28);
        transform: translateY(-4px);
    }

    .benefit-icon {
        width: 52px;
        height: 52px;
        border-radius: 16px;
        margin-bottom: 18px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 22px;
        background: linear-gradient(135deg, rgba(77, 168, 255, 0.28), rgba(77, 168, 255, 0.1));
        color: #9dd3ff;
        border: 1px solid rgba(77, 168, 255, 0.22);
    }

    .benefit-card h3 { font-size: 17px; margin-bottom: 8px; }

    .benefit-card p { color: rgba(255, 255, 255, 0.5); font-size: 14px; margin: 0; }

    /* Steps */
    .steps-wrap {
        background: rgba(255, 255, 255, 0.016);
        border-top: 1px solid rgba(255, 255, 255, 0.06);
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    .step-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 22px;
        counter-reset: step;
    }

    .step-card {
        position: relative;
        padding: 30px 22px 24px;
        border-radius: 20px;
        background: rgba(255, 255, 255, 0.03);
        border: 1px solid transparent;
        transition: border-color 0.25s ease, background 0.25s ease;
    }

    .step-card:hover {
        border-color: rgba(255, 255, 255, 0.13);
        background: rgba(255, 255, 255, 0.05);
    }

    .step-num {
        width: 40px;
        height: 40px;
        margin-bottom: 16px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 13px;
        font-size: 18px;
        font-weight: 800;
        color: var(--ian-accent);
        background: var(--ian-accent-soft);
        border: 1px solid rgba(255, 195, 77, 0.18);
    }

    .step-card h3 { font-size: 16px; margin-bottom: 8px; }
    .step-card p { color: rgba(255, 255, 255, 0.5); font-size: 14px; margin: 0; }

    .step-arrow {
        position: absolute;
        right: -18px;
        top: 42px;
        color: rgba(255, 255, 255, 0.15);
        font-size: 18px;
        z-index: 2;
    }

    /* FAQ */
    .faq-layout {
        display: grid;
        grid-template-columns: 0.9fr 1.1fr;
        gap: 36px;
        align-items: start;
    }

    .faq-intro h2 { font-size: clamp(26px, 2.6vw, 36px); margin: 8px 0 16px; }
    .faq-intro p { color: var(--ian-muted); max-width: 360px; }

    .faq-list { display: flex; flex-direction: column; gap: 14px; }

    .faq-item {
        background: rgba(255, 255, 255, 0.03);
        border: 1px solid rgba(255, 255, 255, 0.09);
        border-radius: 18px;
        overflow: hidden;
        transition: background 0.25s ease, border-color 0.25s ease;
    }

    .faq-item[open] {
        background: rgba(255, 255, 255, 0.055);
        border-color: rgba(77, 168, 255, 0.25);
    }

    .faq-item summary {
        list-style: none;
        display: flex;
        align-items: center;
        gap: 14px;
        padding: 19px 22px;
        cursor: pointer;
        font-weight: 600;
        font-size: 15px;
        color: var(--ian-text);
        transition: color 0.2s ease;
    }

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

    .faq-item summary:hover { color: var(--ian-primary); }

    .faq-q {
        width: 30px;
        height: 30px;
        flex: 0 0 30px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 10px;
        font-size: 14px;
        font-weight: 800;
        color: var(--ian-accent);
        background: var(--ian-accent-soft);
        border: 1px solid rgba(255, 195, 77, 0.2);
    }

    .faq-icon {
        margin-left: auto;
        width: 24px;
        height: 24px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.08);
        color: rgba(255, 255, 255, 0.7);
        transition: transform 0.25s ease, background 0.25s ease;
    }

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

    .faq-answer {
        padding: 0 22px 20px 66px;
        color: rgba(255, 255, 255, 0.58);
        font-size: 14px;
        line-height: 1.8;
    }

    /* CTA band */
    .cta-band {
        position: relative;
        margin: 0;
        border-radius: 0;
        background:
            radial-gradient(60% 120% at 20% 0%, rgba(77, 168, 255, 0.2), transparent 60%),
            radial-gradient(45% 100% at 90% 20%, rgba(255, 195, 77, 0.12), transparent 50%),
            url('/assets/images/backpic/back-1.webp') center/cover;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .cta-inner {
        padding: clamp(72px, 9vw, 128px) 0;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 40px;
        flex-wrap: wrap;
    }

    .cta-inner h2 {
        font-size: clamp(26px, 3.4vw, 40px);
        max-width: 720px;
        letter-spacing: -0.02em;
    }

    .cta-inner p {
        color: rgba(255, 255, 255, 0.65);
        margin-top: 14px;
        max-width: 560px;
        font-size: 16px;
    }

    .cta-actions { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }

    .cta-note {
        width: 100%;
        margin-top: 24px;
        display: flex;
        align-items: center;
        gap: 8px;
        color: rgba(255, 255, 255, 0.42);
        font-size: 13px;
    }
    .cta-note i { color: var(--ian-accent); }

    /* Footer */
    .site-footer {
        background: #070b13;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr 0.8fr 0.8fr 1.1fr;
        gap: 36px;
        padding: 64px 0 44px;
    }

    .footer-brand h4 {
        font-size: 20px;
        margin-bottom: 16px;
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .footer-brand h4 i { color: var(--ian-primary); }

    .footer-brand p {
        color: rgba(255, 255, 255, 0.5);
        max-width: 340px;
        font-size: 14px;
    }

    .footer-col h5 {
        color: #fff;
        font-size: 15px;
        margin-bottom: 18px;
        font-weight: 700;
    }

    .footer-col ul li { margin-bottom: 11px; }

    .footer-col ul a {
        color: rgba(255, 255, 255, 0.52);
        font-size: 14px;
        display: inline-flex;
        align-items: center;
        gap: 8px;
        transition: color 0.2s ease, padding 0.2s ease;
    }

    .footer-col ul a i { color: rgba(255, 255, 255, 0.3); font-size: 11px; }
    .footer-col ul a:hover { color: var(--ian-primary); padding-left: 3px; }

    .footer-sec { border-top: 1px solid rgba(255, 255, 255, 0.07); }

    .footer-bar {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        flex-wrap: wrap;
        padding-top: 22px;
        padding-bottom: 22px;
    }

    .footer-copy, .footer-trust {
        color: rgba(255, 255, 255, 0.35);
        font-size: 13px;
    }

    .footer-trust { display: flex; gap: 18px; flex-wrap: wrap; }
    .footer-trust span { display: inline-flex; align-items: center; gap: 6px; }
    .footer-trust i { color: var(--ian-primary); }

    .toast-msg {
        position: fixed;
        left: 50%;
        bottom: 32px;
        transform: translate(-50%, 20px);
        background: rgba(10, 15, 28, 0.95);
        border: 1px solid rgba(255, 255, 255, 0.16);
        color: #fff;
        padding: 13px 24px;
        border-radius: 999px;
        font-size: 14px;
        box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transition: all 0.25s ease;
        z-index: 300;
        backdrop-filter: blur(8px);
    }

    .toast-msg.show { opacity: 1; visibility: visible; transform: translate(-50%, 0); }

    @media (max-width: 1200px) {
        .benefit-grid { grid-template-columns: repeat(2, 1fr); }
        .hero-title { font-size: clamp(32px, 4vw, 48px); }
        .offer-grid { grid-template-columns: 1fr 1fr; }
    }

    @media (max-width: 992px) {
        .side-nav { display: none; }

        .main-wrap,
        .site-footer { margin-left: 0; }

        .main-wrap { padding-top: 74px; }

        .mobile-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 66px;
            padding: 0 18px;
            background: rgba(7, 11, 22, 0.9);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.09);
            z-index: 150;
        }

        .mobile-brand { display: block; line-height: 1.3; }
        .mobile-brand .logo-main { font-size: 15px; }
        .mobile-brand .logo-sub { font-size: 10px; margin-top: 3px; letter-spacing: 0.05em; }
        .mobile-brand .logo-sub { color: var(--ian-dim); }

        .mobile-toggle {
            width: 42px;
            height: 42px;
            border-radius: 14px;
            border: 1px solid rgba(255, 255, 255, 0.13);
            background: rgba(255, 255, 255, 0.05);
            color: var(--ian-text);
            font-size: 19px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.22s ease;
        }

        .mobile-toggle:hover { background: rgba(255, 255, 255, 0.1); }

        .mobile-toggle .fa-times { display: none; }

        .mobile-toggle.is-open .fa-bars { display: none; }
        .mobile-toggle.is-open .fa-times { display: block; }

        .mobile-panel {
            display: none;
            position: fixed;
            top: 66px;
            left: 0;
            right: 0;
            z-index: 140;
            background: rgba(7, 11, 22, 0.97);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            padding: 18px;
            box-shadow: 0 24px 48px rgba(0, 0, 0, 0.36);
        }

        .mobile-panel.is-open { display: block; }

        .mobile-nav-list { display: flex; flex-direction: column; gap: 8px; }

        .mobile-nav-list .side-nav-link {
            border-left-width: 0;
            padding: 14px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
            border-radius: 14px;
        }

        .mobile-nav-list .side-nav-link.active {
            color: var(--ian-primary);
            font-weight: 700;
            background: rgba(77, 168, 255, 0.11);
        }

        .mobile-nav-user {
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.45);
            font-size: 12px;
        }

        .hero-count-card { margin-top: 24px; }
        .schedule-grid { grid-template-columns: 1fr; }
        .featured-grid { grid-template-columns: 1fr; }
        .benefit-grid { grid-template-columns: 1fr 1fr; }
        .step-grid { grid-template-columns: 1fr 1fr; }
        .step-arrow { display: none; }
        .faq-layout { grid-template-columns: 1fr; }
        .footer-grid { grid-template-columns: 1fr 1fr; }
        .quick-grid { grid-template-columns: 1fr 1fr; }
        .stat-cell:not(:last-child) { border-right: 0; }
        .stat-cell:nth-child(-n+2) { border-bottom: 1px solid rgba(255, 255, 255, 0.07); }

        .category-hero { min-height: auto; padding: 56px 0 66px; }
        .hero-title { font-size: 34px; }
    }

    @media (min-width: 993px) {
        .mobile-header,
        .mobile-panel { display: none !important; }
    }

    @media (max-width: 640px) {
        html { font-size: 15px; }

        .section { --ian-space: 60px; }

        .section-head { margin-bottom: 24px; }

        .logo-main { font-size: 15px; }
        .mobile-header { padding: 0 14px; height: 60px; }
        .mobile-panel { top: 60px; }

        .main-wrap { padding-top: 60px; }

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

        .hero-title { font-size: 32px; }

        .hero-title .suffix { display: block; margin-top: 6px; }

        .hero-text { font-size: 16px; }

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

        .hero-count-card { padding: 22px; }

        .count-timer { font-size: 34px; }

        .quick-grid { grid-template-columns: 1fr; }
        .stat-cell { border-bottom: 1px solid rgba(255, 255, 255, 0.07); }
        .stat-cell:last-child { border-bottom: 0; }

        .schedule-note-cell { align-items: flex-start; gap: 12px; padding: 18px; }

        .footer-grid { grid-template-columns: 1fr; gap: 24px; padding: 44px 0 24px; }

        .cta-inner { padding: 64px 0; }
        .cta-actions .btn { width: 100%; }

        .benefit-grid { grid-template-columns: 1fr; }
        .step-grid { grid-template-columns: 1fr; }

        .footer-bar { flex-direction: column; align-items: flex-start; }

        .schedule-head-note { flex-direction: column; align-items: flex-start; }
    }