/* roulang page: index */
:root {
  --bg-page: #060C18;
  --bg-deep: #081226;
  --bg-card: #0C1B36;
  --glass-bg: rgba(15, 30, 60, 0.55);
  --glass-border: 1px solid rgba(120, 180, 255, 0.16);
  --primary-blue: #1E6FFF;
  --glow-blue: #45B7FF;
  --lime-light: #00E6A0;
  --text-main: #EEF4FF;
  --text-sub: #AEBBD4;
  --text-weak: #6C7F9E;
  --grad-hero: linear-gradient(135deg, #081226 0%, #12306B 55%, #0A1B3F 100%);
  --radius-sm: 8px;
  --radius-card: 14px;
  --radius-lg: 22px;
  --shadow-card: 0 12px 40px -8px rgba(0, 0, 0, 0.42);
  --shadow-glow: 0 8px 30px rgba(30, 111, 255, 0.35);
  --font-num: 'Barlow Condensed', 'DIN Alternate', 'Arial Narrow', sans-serif;
  --font-cn: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-cn);
  background: var(--bg-page);
  color: var(--text-main);
  line-height: 1.8;
  font-size: 15px;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: all .3s ease; }
a:hover { color: var(--glow-blue); }
button { border: none; cursor: pointer; font-family: inherit; }
input, select, textarea { font-family: inherit; }
ul, ol { list-style: none; }
.grid-container { max-width: 1200px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }
section { position: relative; }

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: 68px;
  background: rgba(6, 12, 24, 0.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(120, 180, 255, 0.08);
  transition: background .4s ease, box-shadow .4s ease;
}
.site-header.scrolled {
  background: rgba(6, 12, 24, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}
.header-inner {
  display: flex;
  align-items: center;
  height: 68px;
  gap: 20px;
}
.logo-wrap { flex-shrink: 0; }
.brand-logo {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-weight: 900;
  letter-spacing: 1px;
}
.brand-main {
  font-size: 24px;
  font-weight: 900;
  color: var(--text-main);
  letter-spacing: 2px;
  background: linear-gradient(135deg, #FFFFFF 0%, var(--glow-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.brand-sub {
  font-size: 15px;
  font-weight: 300;
  color: var(--glow-blue);
  letter-spacing: 3px;
  border-left: 1px solid rgba(120, 180, 255, 0.3);
  padding-left: 8px;
}
.header-search {
  flex: 1;
  display: flex;
  justify-content: center;
  max-width: 520px;
  margin: 0 auto;
}
.search-form {
  display: flex;
  align-items: center;
  width: 100%;
  height: 42px;
  background: #FFFFFF;
  border-radius: 12px;
  padding: 0 4px 0 14px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  transition: box-shadow .3s ease;
  position: relative;
}
.search-form:focus-within {
  box-shadow: 0 0 0 3px rgba(30, 111, 255, 0.25), 0 4px 20px rgba(0, 0, 0, 0.15);
}
.search-form i {
  color: #4A5568;
  font-size: 14px;
  margin-right: 8px;
  flex-shrink: 0;
}
.search-form input {
  flex: 1;
  height: 36px;
  border: none;
  outline: none;
  font-size: 14px;
  color: #1A202C;
  background: transparent;
  min-width: 0;
}
.search-form input::placeholder { color: #8899AA; }
.search-form button {
  height: 34px;
  padding: 0 16px;
  background: linear-gradient(135deg, var(--primary-blue), var(--glow-blue));
  color: #fff;
  border-radius: 9px;
  font-size: 13px;
  font-weight: 500;
  transition: filter .3s ease, transform .2s ease;
  flex-shrink: 0;
}
.search-form button:hover { filter: brightness(1.15); }
.search-form button:active { transform: translateY(1px); }
.header-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}
.nav-link {
  padding: 8px 14px;
  color: var(--text-sub);
  font-size: 14px;
  font-weight: 500;
  border-radius: 8px;
  position: relative;
  transition: color .3s ease, background .3s ease;
  white-space: nowrap;
}
.nav-link:hover { color: #fff; background: rgba(69, 183, 255, 0.08); }
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-blue), var(--glow-blue));
  border-radius: 2px;
  transition: width .3s ease;
}
.nav-link:hover::after, .nav-link.active::after { width: 24px; }
.nav-link.active { color: #fff; }
.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  background: rgba(69, 183, 255, 0.1);
  color: var(--text-main);
  font-size: 18px;
  align-items: center;
  justify-content: center;
  transition: background .3s ease;
  flex-shrink: 0;
}
.menu-toggle:hover { background: rgba(69, 183, 255, 0.2); }
.mobile-search {
  display: none;
  padding: 0 0 12px;
}
.mobile-menu {
  display: none;
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  z-index: 999;
  background: rgba(6, 12, 24, 0.97);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(120, 180, 255, 0.1);
  padding: 16px 24px;
  flex-direction: column;
  gap: 4px;
}
.mobile-menu a {
  display: block;
  padding: 14px 16px;
  border-radius: 8px;
  color: var(--text-sub);
  font-size: 15px;
  border-left: 2px solid transparent;
  transition: all .3s ease;
}
.mobile-menu a:hover, .mobile-menu a.active {
  color: #fff;
  background: rgba(69, 183, 255, 0.08);
  border-left-color: var(--glow-blue);
}
.mobile-menu.open { display: flex; }

/* ===== Buttons ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 28px;
  background: linear-gradient(135deg, var(--primary-blue), var(--glow-blue));
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  border-radius: 10px;
  box-shadow: var(--shadow-glow);
  transition: filter .3s ease, box-shadow .3s ease, transform .2s ease;
  border: none;
  white-space: nowrap;
}
.btn-primary:hover { filter: brightness(1.1); box-shadow: 0 10px 40px rgba(30, 111, 255, 0.5); color: #fff; }
.btn-primary:active { transform: translateY(1px); }
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 28px;
  background: rgba(15, 30, 60, 0.35);
  color: var(--text-main);
  font-size: 15px;
  font-weight: 400;
  border-radius: 10px;
  border: 1px solid rgba(120, 180, 255, 0.28);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all .3s ease;
  white-space: nowrap;
}
.btn-ghost:hover { background: rgba(160, 200, 255, 0.12); color: #fff; border-color: rgba(120, 180, 255, 0.5); }
.btn-ghost:active { transform: translateY(1px); }
.btn-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--glow-blue);
  font-size: 14px;
  font-weight: 400;
  background: none;
  padding: 8px 4px;
}
.btn-link i { transition: transform .3s ease; }
.btn-link:hover i { transform: translateX(4px); }
.btn-primary.btn-lg, .btn-ghost.btn-lg { height: 52px; padding: 0 34px; font-size: 16px; border-radius: 12px; }

/* ===== Hero ===== */
.hero-section {
  position: relative;
  min-height: 640px;
  padding: 140px 0 80px;
  overflow: hidden;
  background: var(--grad-hero);
}
.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.45;
  z-index: 0;
}
.hero-section::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 12, 24, 0.82) 0%, rgba(6, 12, 24, 0.65) 50%, rgba(6, 12, 24, 0.9) 100%);
  z-index: 1;
}
.hero-track-arc {
  position: absolute;
  right: -10%;
  top: 50%;
  transform: translateY(-50%);
  width: 60%;
  height: 400px;
  opacity: 0.35;
  z-index: 1;
  pointer-events: none;
}
.hero-track-arc svg { width: 100%; height: 100%; }
.hero-content { position: relative; z-index: 2; }
.hero-title {
  font-size: 40px;
  font-weight: 900;
  line-height: 1.35;
  letter-spacing: -0.5px;
  margin-bottom: 20px;
  max-width: 620px;
}
.hero-title .highlight {
  background: linear-gradient(135deg, var(--glow-blue), #fff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 16px;
  max-width: 560px;
  margin-bottom: 32px;
  color: var(--text-sub);
  line-height: 1.9;
}
.hero-cta {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.hero-trust {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 20px;
}
.hero-trust span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-sub);
}
.hero-trust i { color: var(--lime-light); font-size: 14px; }

/* Live Panel */
.live-panel {
  padding: 24px;
  border-radius: var(--radius-card);
  position: relative;
  z-index: 2;
}
.live-panel-head {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(120, 180, 255, 0.1);
}
.live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #FF4757;
  position: relative;
  display: inline-block;
}
.live-dot::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid rgba(255, 71, 87, 0.4);
  animation: livePulse 1.5s ease infinite;
}
@keyframes livePulse {
  0% { transform: scale(0.6); opacity: 1; }
  100% { transform: scale(1.6); opacity: 0; }
}
.live-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.live-item {
  padding: 16px 12px;
  border-radius: var(--radius-sm);
  background: rgba(69, 183, 255, 0.08);
  border: 1px solid rgba(120, 180, 255, 0.08);
  text-align: center;
  transition: background .3s ease, transform .3s ease;
}
.live-item:hover { background: rgba(69, 183, 255, 0.14); transform: translateY(-2px); }
.live-num {
  font-family: var(--font-num);
  font-size: 28px;
  font-weight: 700;
  color: var(--glow-blue);
  line-height: 1.2;
  text-shadow: 0 0 20px rgba(69, 183, 255, 0.35);
  letter-spacing: 1px;
}
.live-label {
  font-size: 12px;
  color: var(--text-sub);
  margin-top: 6px;
}

/* ===== Section Common ===== */
.section-block { padding: 90px 0; position: relative; }
.section-block.alt { background: var(--bg-deep); }
.section-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 40px;
}
.section-title-wrap { position: relative; padding-left: 16px; }
.section-title-wrap::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--glow-blue), var(--primary-blue));
  box-shadow: 0 0 12px rgba(69, 183, 255, 0.5);
}
.section-label {
  display: inline-block;
  font-size: 12px;
  color: var(--glow-blue);
  background: rgba(69, 183, 255, 0.1);
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.section-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.4;
}
.section-more { white-space: nowrap; }

/* ===== Steps ===== */
.steps-track {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0;
  position: relative;
}
.step-card {
  background: linear-gradient(135deg, rgba(69, 183, 255, 0.05), rgba(69, 183, 255, 0.02));
  border: var(--glass-border);
  border-radius: var(--radius-card);
  padding: 36px 30px;
  position: relative;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform .4s ease, box-shadow .4s ease, border-color .4s ease;
  text-align: left;
}
.step-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
  border-top: 2px solid var(--glow-blue);
}
.step-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 20px;
  right: 20px;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(69, 183, 255, 0.4), transparent);
  opacity: 0;
  transition: opacity .4s ease;
}
.step-card:hover::before { opacity: 1; }
.step-num {
  font-family: var(--font-num);
  font-size: 52px;
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1px rgba(69, 183, 255, 0.5);
  line-height: 1.1;
  margin-bottom: 18px;
  display: block;
  letter-spacing: 2px;
}
.step-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 10px;
}
.step-desc {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.8;
}
.step-arrow {
  position: absolute;
  top: 50%;
  right: -22px;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(69, 183, 255, 0.5);
  font-size: 16px;
  z-index: 3;
  pointer-events: none;
}
.steps-wrap { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 44px; position: relative; }
@media (max-width: 640px) {
  .steps-wrap { grid-template-columns: 1fr; gap: 36px; }
  .step-arrow { right: auto; left: 50%; top: auto; bottom: -30px; transform: translateX(-50%) rotate(90deg); }
}

/* ===== Cases ===== */
.cases-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.case-card {
  background: var(--bg-card);
  border: var(--glass-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform .4s ease, box-shadow .4s ease, border-color .4s ease;
}
.case-card:hover { transform: translateY(-4px); box-shadow: 0 18px 50px -10px rgba(0, 0, 0, 0.5); border-color: rgba(160, 200, 255, 0.3); }
.case-img {
  height: 180px;
  overflow: hidden;
  position: relative;
  background: linear-gradient(135deg, #0D2553, #12306B);
}
.case-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.case-card:hover .case-img img { transform: scale(1.05); }
.case-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(6, 12, 24, 0.6));
}
.case-quote {
  padding: 20px 24px 4px;
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.8;
  position: relative;
}
.case-quote::before {
  content: '"';
  font-size: 40px;
  color: rgba(69, 183, 255, 0.3);
  position: absolute;
  top: 6px;
  left: 14px;
  font-family: Georgia, serif;
}
.case-meta {
  padding: 14px 24px 24px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--text-weak);
  border-top: 1px dashed rgba(120, 180, 255, 0.1);
  margin-top: 14px;
}
.case-meta i { color: var(--glow-blue); }
.case-row-2 { transform: translateY(24px); }
@media (max-width: 1024px) {
  .cases-grid { grid-template-columns: 1fr; }
  .case-row-2 { transform: none; }
}

/* ===== FAQ ===== */
.faq-wrap { display: grid; grid-template-columns: 4fr 8fr; gap: 48px; align-items: start; }
.faq-guide { font-size: 14px; color: var(--text-sub); margin-top: 16px; line-height: 1.8; }
.faq-contact-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--glow-blue);
  font-size: 14px;
  margin-top: 16px;
  transition: color .3s ease;
}
.faq-contact-link:hover { color: #fff; }
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: linear-gradient(135deg, rgba(69, 183, 255, 0.04), rgba(69, 183, 255, 0.01));
  border: var(--glass-border);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color .3s ease, box-shadow .3s ease;
  position: relative;
}
.faq-item.active { border-color: rgba(69, 183, 255, 0.5); box-shadow: 0 6px 24px rgba(30, 111, 255, 0.12); }
.faq-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--glow-blue), var(--primary-blue));
  box-shadow: 0 0 12px rgba(69, 183, 255, 0.5);
}
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  background: none;
  color: var(--text-main);
  font-size: 15px;
  font-weight: 500;
  text-align: left;
  gap: 12px;
  transition: background .3s ease;
}
.faq-q:hover { background: rgba(69, 183, 255, 0.04); }
.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(69, 183, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--glow-blue);
  transition: transform .4s ease, background .3s ease;
  flex-shrink: 0;
}
.faq-item.active .faq-icon { transform: rotate(45deg); background: rgba(69, 183, 255, 0.25); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease;
  padding: 0 22px;
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.8;
  border-top: 0 solid transparent;
}
.faq-item.active .faq-a {
  max-height: 240px;
  padding: 16px 22px 20px;
  border-top: 1px dashed rgba(120, 180, 255, 0.1);
}
@media (max-width: 1024px) {
  .faq-wrap { grid-template-columns: 1fr; gap: 32px; }
}

/* ===== CTA ===== */
.cta-panel {
  position: relative;
  padding: 48px;
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  border: var(--glass-border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  overflow: hidden;
}
.cta-panel::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(69, 183, 255, 0.18) 0%, transparent 70%);
  pointer-events: none;
}
.cta-panel::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(69, 183, 255, 0.4), transparent);
}
.cta-title { font-size: 26px; font-weight: 700; margin-bottom: 12px; }
.cta-sub { font-size: 14px; color: var(--text-sub); margin-bottom: 32px; max-width: 600px; line-height: 1.8; }
.cta-form .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 140px;
  gap: 16px;
  align-items: center;
}
.cta-form input, .cta-form select {
  height: 44px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  padding: 0 16px;
  font-size: 14px;
  color: var(--text-main);
  outline: none;
  transition: border-color .3s ease, box-shadow .3s ease;
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
}
.cta-form select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2345B7FF' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}
.cta-form input::placeholder { color: var(--text-weak); }
.cta-form input:focus, .cta-form select:focus {
  border-color: var(--glow-blue);
  box-shadow: 0 0 0 3px rgba(69, 183, 255, 0.2);
  background: rgba(255, 255, 255, 0.12);
}
.cta-form select option {
  background: var(--bg-card);
  color: var(--text-main);
}
.cta-form .btn-primary { width: 140px; }
.privacy-note {
  font-size: 12px;
  color: var(--text-weak);
  margin-top: 16px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.privacy-note i { color: var(--lime-light); }
@media (max-width: 1024px) {
  .cta-form .form-row { grid-template-columns: 1fr 1fr; }
  .cta-form .btn-primary { width: 100%; }
}
@media (max-width: 640px) {
  .cta-panel { padding: 28px 20px; }
  .cta-form .form-row { grid-template-columns: 1fr; }
}

/* ===== News ===== */
.news-section { background: var(--bg-deep); }
.news-layout { display: grid; grid-template-columns: 8fr 4fr; gap: 40px; align-items: start; }
.news-list { display: flex; flex-direction: column; }
.news-row {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px dashed rgba(120, 180, 255, 0.16);
  transition: background .3s ease;
}
.news-row:hover { background: rgba(69, 183, 255, 0.03); }
.news-row:last-child { border-bottom: none; }
.news-date {
  flex-shrink: 0;
  width: 72px;
  text-align: center;
  padding: 10px 0;
  background: rgba(69, 183, 255, 0.08);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(120, 180, 255, 0.1);
}
.news-day {
  display: block;
  font-family: var(--font-num);
  font-size: 26px;
  font-weight: 700;
  color: var(--glow-blue);
  line-height: 1.1;
}
.news-month {
  display: block;
  font-family: var(--font-num);
  font-size: 12px;
  color: var(--text-weak);
  letter-spacing: 1px;
  line-height: 1.2;
  margin-top: 2px;
}
.news-content { flex: 1; min-width: 0; }
.news-tag-row { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.news-content h4 {
  font-size: 16px;
  color: var(--text-main);
  margin-bottom: 6px;
  line-height: 1.5;
}
.news-content h4 a:hover { color: var(--glow-blue); }
.news-content p {
  font-size: 13px;
  color: var(--text-weak);
  line-height: 1.6;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
}
.news-link {
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(69, 183, 255, 0.1);
  color: var(--glow-blue);
  transition: all .3s ease;
  font-size: 14px;
}
.news-link:hover { background: linear-gradient(135deg, var(--primary-blue), var(--glow-blue)); color: #fff; }
.news-empty {
  padding: 50px 0;
  text-align: center;
  color: var(--text-weak);
  font-size: 14px;
}
.news-empty i { font-size: 40px; margin-bottom: 12px; color: rgba(120, 180, 255, 0.2); display: block; }
.news-sidebar { display: flex; flex-direction: column; gap: 24px; }
.side-card {
  background: linear-gradient(135deg, rgba(69, 183, 255, 0.05), rgba(69, 183, 255, 0.01));
  border: var(--glass-border);
  border-radius: var(--radius-card);
  padding: 24px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.side-card-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(120, 180, 255, 0.12);
  display: flex;
  align-items: center;
  gap: 8px;
}
.side-card-title i { color: var(--glow-blue); font-size: 14px; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-chip {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(69, 183, 255, 0.08);
  border: 1px solid rgba(120, 180, 255, 0.1);
  color: var(--text-sub);
  font-size: 12px;
  transition: all .3s ease;
}
.tag-chip:hover { background: rgba(69, 183, 255, 0.2); color: #fff; border-color: rgba(69, 183, 255, 0.4); }
.announce-box {
  display: flex;
  gap: 12px;
  padding: 16px;
  background: rgba(255, 209, 102, 0.1);
  border-radius: 10px;
  border: 1px solid rgba(255, 209, 102, 0.15);
}
.announce-box i { color: #FFD166; font-size: 18px; flex-shrink: 0; margin-top: 2px; }
.announce-box p { font-size: 13px; color: var(--text-sub); line-height: 1.7; }
@media (max-width: 1024px) {
  .news-layout { grid-template-columns: 1fr; }
}

/* ===== Footer ===== */
.site-footer {
  background: #040810;
  border-top: 1px solid rgba(120, 180, 255, 0.08);
  padding-top: 60px;
  position: relative;
}
.footer-top {
  display: grid;
  grid-template-columns: 4fr 2fr 2fr 3fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand .brand-logo { margin-bottom: 14px; }
.footer-desc { font-size: 12px; color: var(--text-weak); line-height: 1.8; max-width: 260px; }
.footer-col h5 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a {
  font-size: 13px;
  color: var(--text-weak);
  transition: color .3s ease;
}
.footer-col ul a:hover { color: var(--glow-blue); padding-left: 4px; }
.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 13px;
  color: var(--text-weak);
}
.footer-contact-item i {
  color: var(--glow-blue);
  font-size: 14px;
  margin-top: 3px;
  width: 18px;
  text-align: center;
}
.footer-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(69, 183, 255, 0.3), transparent);
  border: none;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  font-size: 12px;
  color: var(--text-weak);
  flex-wrap: wrap;
  gap: 8px;
}
.footer-bottom a { color: var(--text-weak); }
.footer-bottom a:hover { color: var(--glow-blue); }
@media (max-width: 1024px) {
  .footer-top { grid-template-columns: 1fr 1fr; gap: 28px; }
}
@media (max-width: 640px) {
  .footer-top { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* ===== Badges ===== */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 6px;
  background: rgba(69, 183, 255, 0.12);
  color: var(--glow-blue);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.4;
}
.badge-live {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 6px;
  background: #FF4757;
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  animation: livePulse 1.8s ease infinite;
}

/* ===== Utility ===== */
.text-center { text-align: center; }
.mt-1 { margin-top: 16px; }
.mt-2 { margin-top: 32px; }
.mb-1 { margin-bottom: 16px; }
.mb-2 { margin-bottom: 32px; }

/* ===== Responsive ===== */
@media (max-width: 1280px) {
  .grid-container { max-width: 100%; }
}
@media (max-width: 1024px) {
  .header-nav { display: none; }
  .menu-toggle { display: flex; }
  .header-search { max-width: none; margin-left: 0; margin-right: 0; }
  .hero-section { padding-top: 120px; }
  .hero-title { font-size: 34px; }
  .hero-live-panel { margin-top: 32px; }
  .steps-wrap { grid-template-columns: 1fr; gap: 36px; }
  .step-arrow { right: auto; left: 50%; top: auto; bottom: -28px; transform: translateX(-50%) rotate(90deg); }
}
@media (max-width: 640px) {
  .grid-container { padding-left: 16px; padding-right: 16px; }
  .site-header { height: auto; min-height: 68px; }
  .header-inner { height: auto; min-height: 68px; flex-wrap: wrap; padding: 10px 0; }
  .header-search { display: none; }
  .mobile-search { display: block; }
  .hero-section { padding: 110px 0 50px; }
  .hero-title { font-size: 26px; line-height: 1.4; }
  .hero-sub { font-size: 15px; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .hero-cta .btn-primary, .hero-cta .btn-ghost { width: 100%; }
  .hero-trust { justify-content: flex-start; gap: 14px; flex-wrap: wrap; }
  .live-grid { grid-template-columns: 1fr 1fr; }
  .section-block { padding: 60px 0; }
  .section-title { font-size: 22px; }
  .section-header { margin-bottom: 28px; }
  .cta-form .form-row { grid-template-columns: 1fr; }
  .news-row { flex-wrap: wrap; gap: 12px; }
  .news-date { width: 60px; }
  .news-link { display: none; }
}

/* roulang page: article */
:root {
  --bg-page: #060C18;
  --bg-deep: #081226;
  --bg-card: #0C1B36;
  --glass-bg: rgba(15, 30, 60, 0.55);
  --glass-border: 1px solid rgba(120, 180, 255, 0.16);
  --primary-blue: #1E6FFF;
  --glow-blue: #45B7FF;
  --lime-light: #00E6A0;
  --text-main: #EEF4FF;
  --text-sub: #AEBBD4;
  --text-weak: #6C7F9E;
  --grad-hero: linear-gradient(135deg, #081226 0%, #12306B 55%, #0A1B3F 100%);
  --radius-sm: 8px;
  --radius-card: 14px;
  --radius-lg: 22px;
  --shadow-card: 0 12px 40px -8px rgba(0, 0, 0, 0.42);
  --shadow-glow: 0 8px 30px rgba(30, 111, 255, 0.35);
  --font-display: 'DIN Alternate', 'Barlow Condensed', 'Arial Narrow', sans-serif;
  --transition-base: all 0.3s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-main);
  background: var(--bg-page);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--glow-blue); text-decoration: none; transition: var(--transition-base); }
a:hover { color: #7DC8FF; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible { outline: 3px solid rgba(69, 183, 255, 0.35); outline-offset: 2px; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

.grid-container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }
@media screen and (max-width: 639px) {
  .grid-container { padding-left: 16px; padding-right: 16px; }
}

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 68px;
  background: rgba(6, 12, 24, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(120, 180, 255, 0.10);
  z-index: 300;
  transition: background 0.35s ease;
}
.site-header.scrolled {
  background: rgba(6, 12, 24, 0.94);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
}
.header-inner {
  display: flex;
  align-items: center;
  height: 68px;
  gap: 28px;
}
.brand-logo { display: inline-flex; align-items: baseline; gap: 4px; white-space: nowrap; }
.brand-main {
  font-size: 23px;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--text-main);
  background: linear-gradient(90deg, #FFFFFF, #B8DCFF);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.brand-sub {
  font-size: 13px;
  font-weight: 300;
  color: rgba(174, 187, 212, 0.75);
  letter-spacing: 2px;
}
.header-search {
  flex: 1;
  max-width: 520px;
  margin: 0 auto;
}
.header-search form {
  display: flex;
  align-items: center;
  height: 42px;
  background: #FFFFFF;
  border-radius: 12px;
  padding: 0 6px 0 14px;
  gap: 8px;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.16);
  transition: box-shadow 0.3s ease;
}
.header-search form:focus-within { box-shadow: 0 0 0 3px rgba(30, 111, 255, 0.25); }
.header-search svg { flex-shrink: 0; width: 18px; height: 18px; fill: #6C7F9E; }
.header-search input {
  flex: 1;
  height: 100%;
  border: none;
  outline: none;
  background: transparent;
  font-size: 14px;
  color: #0B1B3A;
}
.header-search input::placeholder { color: #8B9AB5; }
.header-search button {
  height: 30px;
  padding: 0 16px;
  border-radius: 8px;
  background: linear-gradient(135deg, #1E6FFF, #45B7FF);
  color: #FFFFFF;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  transition: filter 0.2s ease;
}
.header-search button:hover { filter: brightness(1.12); }
.header-nav { display: flex; align-items: center; gap: 6px; }
.nav-link {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-sub);
  position: relative;
  transition: color 0.25s ease, background 0.25s ease;
}
.nav-link:hover { color: #FFFFFF; background: rgba(255, 255, 255, 0.06); }
.nav-link.active { color: #FFFFFF; }
.nav-link.active::after {
  content: '';
  position: absolute;
  left: 14px; right: 14px; bottom: 2px;
  height: 2px;
  background: var(--glow-blue);
  box-shadow: 0 0 10px rgba(69, 183, 255, 0.7);
  border-radius: 2px;
}
.mobile-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.mobile-toggle span { display: block; width: 22px; height: 2px; background: var(--text-main); border-radius: 2px; transition: var(--transition-base); }

/* --- Breadcrumb & Article Hero --- */
.article-hero {
  position: relative;
  margin-top: 68px;
  padding: 90px 0 70px;
  background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-bottom: 1px dashed rgba(120, 180, 255, 0.16);
  overflow: hidden;
}
.article-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(6, 12, 24, 0.92) 30%, rgba(10, 30, 70, 0.78) 100%);
}
.article-hero .grid-container { position: relative; z-index: 2; }
.article-hero-inner { max-width: 860px; }
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-weak);
  margin-bottom: 28px;
}
.breadcrumb a { color: var(--text-sub); }
.breadcrumb a:hover { color: var(--glow-blue); }
.breadcrumb .separator { color: rgba(255, 255, 255, 0.25); }
.breadcrumb .current { color: var(--text-sub); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 280px; }
.article-hero h1 {
  font-size: 34px;
  line-height: 1.35;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text-main);
  margin-bottom: 20px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  font-size: 13px;
  color: var(--text-sub);
}
.meta-item { display: inline-flex; align-items: center; gap: 7px; }
.meta-item i { color: var(--glow-blue); font-size: 14px; }
.meta-date { font-family: var(--font-display); font-size: 15px; letter-spacing: 0.5px; }
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 6px;
  background: rgba(69, 183, 255, 0.12);
  color: var(--glow-blue);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.4;
}

/* --- Article Body Layout --- */
.section-space { padding: 80px 0; }
.article-layout { background: var(--bg-page); }
.article-main { max-width: 760px; }
.article-body { color: var(--text-main); }
.article-body p { margin-bottom: 18px; line-height: 1.9; color: rgba(238, 244, 255, 0.88); }
.article-body h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-main);
  margin: 40px 0 16px;
  padding-left: 14px;
  border-left: 4px solid var(--glow-blue);
  box-shadow: -8px 0 20px -8px rgba(69, 183, 255, 0.4);
}
.article-body h3 {
  font-size: 19px;
  font-weight: 600;
  color: var(--text-main);
  margin: 28px 0 12px;
}
.article-body ul, .article-body ol {
  margin: 0 0 18px 24px;
  color: rgba(238, 244, 255, 0.88);
}
.article-body li { margin-bottom: 8px; }
.article-body a {
  color: var(--glow-blue);
  border-bottom: 1px dashed rgba(69, 183, 255, 0.4);
}
.article-body a:hover { color: #7DC8FF; border-bottom-style: solid; }
.article-body blockquote {
  margin: 26px 0;
  padding: 18px 22px;
  border-left: 4px solid var(--glow-blue);
  background: rgba(30, 111, 255, 0.06);
  border-radius: 8px;
  color: var(--text-sub);
  font-style: italic;
}
.article-body img {
  border-radius: 14px;
  margin: 28px auto;
  box-shadow: var(--shadow-card);
}
.article-body figcaption {
  font-size: 12px;
  color: var(--text-weak);
  text-align: center;
  margin-top: -18px;
  margin-bottom: 24px;
}
.article-body table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: 10px;
  overflow: hidden;
  margin: 24px 0;
  background: var(--bg-card);
  border: 1px solid rgba(120, 180, 255, 0.12);
}
.article-body th, .article-body td {
  padding: 12px 16px;
  border-bottom: 1px solid rgba(120, 180, 255, 0.10);
  text-align: left;
  font-size: 14px;
}
.article-body th { background: rgba(30, 111, 255, 0.15); color: var(--text-main); font-weight: 600; }
.article-body tr:last-child td { border-bottom: none; }
.article-body code {
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 8px;
  border-radius: 5px;
  font-size: 13px;
  color: var(--lime-light);
}

/* --- Not Found --- */
.not-found-card {
  background: var(--bg-card);
  border: var(--glass-border);
  border-radius: var(--radius-card);
  padding: 60px 40px;
  text-align: center;
  box-shadow: var(--shadow-card);
}
.not-found-card i { font-size: 44px; color: var(--glow-blue); margin-bottom: 18px; }
.not-found-card h2 { font-size: 24px; font-weight: 700; margin-bottom: 10px; }
.not-found-card p { color: var(--text-sub); margin-bottom: 24px; }

/* --- Sidebar --- */
.article-sidebar .glass-card {
  background: linear-gradient(145deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
  border: var(--glass-border);
  border-radius: var(--radius-card);
  padding: 26px;
  margin-bottom: 24px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-card);
}
.sidebar-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px dashed rgba(120, 180, 255, 0.14);
}
.sidebar-title i { color: var(--glow-blue); }
.toc-list { list-style: none; margin: 0; padding: 0; max-height: 320px; overflow-y: auto; }
.toc-list::-webkit-scrollbar { width: 4px; }
.toc-list::-webkit-scrollbar-track { background: transparent; }
.toc-list::-webkit-scrollbar-thumb { background: rgba(120, 180, 255, 0.2); border-radius: 4px; }
.toc-item { margin-bottom: 4px; }
.toc-item a {
  display: block;
  padding: 8px 12px;
  border-radius: 7px;
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.5;
  transition: var(--transition-base);
}
.toc-item a:hover { background: rgba(69, 183, 255, 0.10); color: var(--text-main); }
.toc-item.toc-sub a { padding-left: 28px; font-size: 13px; color: var(--text-weak); }
.toc-item.active a { background: rgba(30, 111, 255, 0.18); color: var(--text-main); }
.recommend-list { list-style: none; margin: 0; padding: 0; }
.recommend-list li {
  display: flex;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px dashed rgba(120, 180, 255, 0.10);
  align-items: flex-start;
}
.recommend-list li:last-child { border-bottom: none; padding-bottom: 0; }
.recommend-list img {
  width: 84px;
  height: 60px;
  object-fit: cover;
  border-radius: 8px;
  flex-shrink: 0;
}
.recommend-info { min-width: 0; }
.recommend-info a {
  display: block;
  font-size: 14px;
  line-height: 1.45;
  color: var(--text-main);
  margin-bottom: 5px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.recommend-info a:hover { color: var(--glow-blue); }
.recommend-info span { font-size: 12px; color: var(--text-weak); font-family: var(--font-display); }

/* --- Post Nav --- */
.post-nav { padding: 0 0 80px; }
.post-nav .grid-container { max-width: 1200px; }
.post-nav-card {
  display: flex;
  align-items: center;
  gap: 18px;
  background: var(--bg-card);
  border: var(--glass-border);
  border-radius: var(--radius-card);
  padding: 28px 30px;
  box-shadow: var(--shadow-card);
  transition: border-color 0.3s ease, transform 0.3s ease;
  height: 100%;
}
.post-nav-card:hover { border-color: rgba(160, 200, 255, 0.30); transform: translateY(-3px); }
.post-nav-icon {
  width: 46px;
  height: 46px;
  border-radius: 10px;
  background: rgba(30, 111, 255, 0.14);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--glow-blue);
  font-size: 20px;
  flex-shrink: 0;
}
.post-nav-text { min-width: 0; }
.post-nav-text .label { font-size: 12px; color: var(--text-weak); margin-bottom: 4px; display: block; }
.post-nav-text .title { font-size: 15px; color: var(--text-main); font-weight: 600; line-height: 1.4; }
.post-nav-card:hover .title { color: var(--glow-blue); }
.return-list {
  text-align: center;
  margin-top: 48px;
}
.btn-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--glow-blue);
  font-size: 14px;
  font-weight: 500;
  transition: gap 0.3s ease;
}
.btn-link:hover { gap: 14px; color: #7DC8FF; }
.btn-link i { color: var(--glow-blue); }

/* --- Recommended Reading --- */
.recommend-section { background: var(--bg-deep); border-top: 1px solid rgba(120, 180, 255, 0.08); border-bottom: 1px solid rgba(120, 180, 255, 0.08); }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 36px; }
.section-title-wrap { display: flex; align-items: center; gap: 16px; }
.section-rule {
  width: 4px;
  height: 34px;
  background: var(--glow-blue);
  border-radius: 4px;
  box-shadow: 0 0 16px rgba(69, 183, 255, 0.5);
}
.section-tag {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 999px;
  background: rgba(69, 183, 255, 0.10);
  color: var(--glow-blue);
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 8px;
}
.section-title { font-size: 26px; font-weight: 700; color: var(--text-main); letter-spacing: -0.3px; }
.recommend-card {
  background: var(--bg-card);
  border: var(--glass-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.recommend-card:hover { transform: translateY(-5px); border-color: rgba(160, 200, 255, 0.32); box-shadow: 0 18px 50px -10px rgba(0, 0, 0, 0.55); }
.recommend-card .card-img { position: relative; overflow: hidden; }
.recommend-card .card-img img { width: 100%; height: 160px; object-fit: cover; transition: transform 0.5s ease; }
.recommend-card:hover .card-img img { transform: scale(1.05); }
.recommend-card .card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(6, 12, 24, 0.55) 100%);
}
.card-content { padding: 20px 22px 24px; flex: 1; display: flex; flex-direction: column; }
.card-content .badge { align-self: flex-start; margin-bottom: 12px; }
.card-content h3 { font-size: 17px; line-height: 1.5; font-weight: 600; color: var(--text-main); margin-bottom: 10px; }
.card-content h3 a { color: inherit; }
.card-content h3 a:hover { color: var(--glow-blue); }
.card-meta { margin-top: auto; display: flex; align-items: center; justify-content: space-between; font-size: 12px; color: var(--text-weak); }
.card-meta .read-more { color: var(--glow-blue); font-size: 13px; }
.card-meta .read-more i { transition: transform 0.3s ease; }
.card-meta .read-more:hover i { transform: translateX(3px); }

/* --- CTA --- */
.cta-section { padding: 90px 0; background: var(--bg-page); }
.cta-panel {
  position: relative;
  background: linear-gradient(135deg, rgba(15, 30, 60, 0.75), rgba(20, 50, 105, 0.55));
  border: var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  overflow: hidden;
  text-align: center;
  box-shadow: var(--shadow-card);
}
.cta-panel::before {
  content: '';
  position: absolute;
  width: 360px; height: 360px;
  background: radial-gradient(circle, rgba(30, 111, 255, 0.25), transparent 70%);
  top: -140px; right: -100px;
  pointer-events: none;
}
.cta-panel::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--glow-blue), transparent);
}
.cta-panel h2 { font-size: 26px; font-weight: 700; color: var(--text-main); margin-bottom: 12px; }
.cta-panel p { font-size: 14px; color: var(--text-sub); max-width: 520px; margin: 0 auto 32px; }
.btn-group { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 52px;
  padding: 0 32px;
  border-radius: 10px;
  background: linear-gradient(135deg, #1E6FFF, #45B7FF);
  color: #FFFFFF;
  font-size: 15px;
  font-weight: 600;
  box-shadow: var(--shadow-glow);
  transition: filter 0.2s ease, box-shadow 0.3s ease, transform 0.2s ease;
}
.btn-primary:hover { filter: brightness(1.1); box-shadow: 0 12px 40px rgba(30, 111, 255, 0.45); color: #FFFFFF; }
.btn-primary:active { transform: translateY(1px); }
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 52px;
  padding: 0 30px;
  border-radius: 10px;
  background: transparent;
  border: 1px solid rgba(120, 180, 255, 0.28);
  color: var(--text-main);
  font-size: 15px;
  font-weight: 500;
  transition: background 0.2s ease, border-color 0.2s ease;
}
.btn-ghost:hover { background: rgba(160, 200, 255, 0.12); border-color: rgba(160, 200, 255, 0.40); color: #FFFFFF; }

/* --- Footer --- */
.site-footer {
  background: #040810;
  border-top: 1px solid rgba(120, 180, 255, 0.08);
  padding: 70px 0 30px;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 44px;
  padding-bottom: 48px;
}
.footer-brand .brand-logo { margin-bottom: 16px; }
.footer-desc { font-size: 13px; color: var(--text-weak); line-height: 1.9; max-width: 320px; }
.footer-col h5 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 18px;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: 10px; }
.footer-col li a, .footer-contact-item {
  font-size: 13px;
  color: var(--text-sub);
  transition: color 0.25s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.footer-col li a:hover { color: var(--glow-blue); }
.footer-contact-item { margin-bottom: 10px; }
.footer-contact-item i { color: var(--glow-blue); width: 16px; text-align: center; font-size: 14px; }
.footer-divider {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(69, 183, 255, 0.35), transparent);
  margin-bottom: 24px;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--text-weak);
}
.footer-bottom span:last-child { font-family: var(--font-display); letter-spacing: 0.5px; }

/* --- Responsive --- */
@media screen and (max-width: 1024px) {
  .header-inner { gap: 14px; }
  .header-search { max-width: 360px; }
  .nav-link { padding: 8px 10px; font-size: 13px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media screen and (max-width: 768px) {
  .header-inner { flex-wrap: wrap; height: auto; padding: 12px 0; gap: 12px; }
  .site-header { height: auto; }
  .header-logo { margin-right: auto; }
  .header-search { order: 3; max-width: 100%; flex-basis: 100%; }
  .header-search form { height: 40px; }
  .header-nav {
    display: none;
    order: 4;
    flex-basis: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 12px 0 6px;
  }
  .header-nav a { padding: 12px 14px; }
  body.mobile-nav-open .header-nav { display: flex; }
  .mobile-toggle { display: flex; }
  .article-hero { padding: 70px 0 50px; }
  .article-hero h1 { font-size: 26px; line-height: 1.4; }
  .article-meta { gap: 12px; }
  .section-space { padding: 56px 0; }
  .article-sidebar { margin-top: 40px; }
  .cta-panel { padding: 40px 24px; }
  .cta-panel h2 { font-size: 22px; }
  .post-nav-card { padding: 20px; }
  .return-list { margin-top: 32px; }
}
@media screen and (max-width: 640px) {
  .section-title { font-size: 22px; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 14px; }
  .btn-primary, .btn-ghost { width: 100%; }
  .btn-group { flex-direction: column; width: 100%; }
  .footer-top { grid-template-columns: 1fr; gap: 28px; padding-bottom: 36px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .article-hero h1 { font-size: 24px; }
  .recommend-section .cell { margin-bottom: 16px; }
  .recommend-card .card-img img { height: 140px; }
  .article-layout .grid-x { margin-left: 0; margin-right: 0; }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
    :root {
      --bg-page: #060C18;
      --bg-deep: #081226;
      --bg-card: #0C1B36;
      --glass-bg: rgba(15, 30, 60, 0.55);
      --glass-border: 1px solid rgba(120, 180, 255, 0.16);
      --primary-blue: #1E6FFF;
      --glow-blue: #45B7FF;
      --lime-light: #00E6A0;
      --text-main: #EEF4FF;
      --text-sub: #AEBBD4;
      --text-weak: #6C7F9E;
      --grad-hero: linear-gradient(135deg, #081226 0%, #12306B 55%, #0A1B3F 100%);
      --radius-sm: 8px;
      --radius-card: 14px;
      --radius-lg: 22px;
      --shadow-card: 0 12px 40px -8px rgba(0, 0, 0, 0.42);
      --shadow-glow: 0 8px 30px rgba(30, 111, 255, 0.35);
      --font-number: 'Barlow Condensed', 'DIN Alternate', 'Roboto Condensed', sans-serif;
      --font-main: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    }
    /* ===== 基础Reset ===== */
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: var(--font-main);
      background: var(--bg-page);
      color: var(--text-main);
      line-height: 1.7;
      font-size: 15px;
      overflow-x: hidden;
    }
    a { color: inherit; text-decoration: none; transition: color .25s ease; }
    img { max-width: 100%; display: block; }
    button, input, select, textarea { font-family: inherit; font-size: inherit; outline: none; }
    .grid-container { max-width: 1200px; padding: 0 24px; }
    @media (max-width: 640px) {
      .grid-container { padding: 0 16px; }
    }
    ::selection { background: rgba(30, 111, 255, 0.35); color: #fff; }

    /* ===== 导航 ===== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 999;
      height: 68px;
      background: rgba(6, 12, 24, 0.82);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: var(--glass-border);
      transition: all .3s ease;
    }
    .site-header.scrolled {
      background: rgba(6, 12, 24, 0.94);
      box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
    }
    .header-inner {
      display: flex;
      align-items: center;
      height: 68px;
      gap: 18px;
      flex-wrap: nowrap;
    }
    .brand-logo {
      display: flex;
      align-items: baseline;
      gap: 6px;
      flex-shrink: 0;
      font-family: var(--font-main);
    }
    .brand-main {
      font-size: 24px;
      font-weight: 900;
      letter-spacing: 1px;
      color: #fff;
      background: linear-gradient(135deg, #fff 30%, var(--glow-blue));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .brand-sub {
      font-size: 13px;
      font-weight: 400;
      color: rgba(174, 187, 212, 0.75);
      letter-spacing: 2px;
    }
    .header-search {
      flex: 1;
      max-width: 520px;
      min-width: 0;
      height: 42px;
      display: flex;
      align-items: center;
      background: #fff;
      border-radius: 12px;
      padding: 0 6px 0 14px;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18);
      transition: box-shadow .25s ease;
      margin: 0 auto;
    }
    .header-search:focus-within {
      box-shadow: 0 0 0 3px rgba(30, 111, 255, 0.25), 0 6px 20px rgba(0, 0, 0, 0.22);
    }
    .header-search svg, .header-search i {
      color: #506080;
      font-size: 14px;
      margin-right: 8px;
      flex-shrink: 0;
    }
    .header-search input {
      flex: 1;
      border: none;
      background: transparent;
      height: 38px;
      color: #1A2333;
      font-size: 14px;
    }
    .header-search input::placeholder { color: #8FA0B8; }
    .header-search .search-btn {
      flex-shrink: 0;
      height: 32px;
      padding: 0 16px;
      border: none;
      background: linear-gradient(135deg, var(--primary-blue), var(--glow-blue));
      color: #fff;
      font-size: 13px;
      font-weight: 500;
      border-radius: 8px;
      cursor: pointer;
      transition: filter .2s;
    }
    .header-search .search-btn:hover { filter: brightness(1.15); }
    .header-nav {
      display: flex;
      align-items: center;
      gap: 4px;
      flex-shrink: 0;
    }
    .nav-link {
      position: relative;
      padding: 8px 14px;
      font-size: 14px;
      color: var(--text-sub);
      border-radius: 8px;
      transition: color .2s;
      font-weight: 500;
    }
    .nav-link::after {
      content: '';
      position: absolute;
      left: 14px;
      right: 14px;
      bottom: 0;
      height: 2px;
      background: linear-gradient(90deg, var(--primary-blue), var(--glow-blue));
      border-radius: 2px;
      opacity: 0;
      transform: scaleX(0.4);
      transition: opacity .25s, transform .25s;
    }
    .nav-link:hover, .nav-link.active {
      color: #fff;
    }
    .nav-link:hover::after, .nav-link.active::after {
      opacity: 1;
      transform: scaleX(1);
    }
    .hamburger {
      display: none;
      background: none;
      border: none;
      width: 40px;
      height: 40px;
      border-radius: 8px;
      cursor: pointer;
      position: relative;
      flex-shrink: 0;
    }
    .hamburger span {
      display: block;
      width: 20px;
      height: 2px;
      background: var(--text-main);
      margin: 5px auto;
      border-radius: 2px;
      transition: all .3s;
    }
    .hamburger:hover span { background: var(--glow-blue); }

    /* ===== 移动端导航 ===== */
    @media (max-width: 1024px) {
      .header-search { max-width: 300px; margin: 0; }
      .nav-link { padding: 8px 8px; font-size: 13px; }
    }
    @media (max-width: 640px) {
      .site-header {
        height: auto;
        min-height: 60px;
      }
      .header-inner {
        flex-wrap: wrap;
        height: auto;
        padding-top: 8px;
        padding-bottom: 8px;
        gap: 10px;
      }
      .header-search {
        order: 3;
        max-width: 100%;
        flex-basis: 100%;
        margin: 4px 0 0;
        height: 40px;
      }
      .header-nav {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 10px 0;
        border-top: 1px solid rgba(120, 180, 255, 0.1);
      }
      .header-nav.open { display: flex; animation: fadeIn .2s ease; }
      .nav-link {
        padding: 12px 16px;
        border-radius: 8px;
      }
      .nav-link::after { display: none; }
      .nav-link:hover { background: rgba(30, 111, 255, 0.15); }
      .hamburger { display: block; margin-left: auto; }
    }

    /* ===== Hero 横幅区 ===== */
    .hero-banner {
      position: relative;
      padding: 130px 0 80px;
      background: var(--grad-hero);
      overflow: hidden;
      min-height: 560px;
      display: flex;
      align-items: center;
    }
    .hero-banner::before {
      content: '';
      position: absolute;
      top: -40%;
      right: -10%;
      width: 620px;
      height: 620px;
      background: radial-gradient(circle, rgba(30, 111, 255, 0.35) 0%, transparent 65%);
      border-radius: 50%;
      pointer-events: none;
    }
    .hero-banner::after {
      content: '';
      position: absolute;
      left: 0;
      right: 0;
      bottom: -60px;
      height: 160px;
      background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 120' fill='none'%3E%3Cpath d='M0 80 Q 120 20 240 50 T 480 40 T 720 70 T 960 30 T 1200 60 T 1440 40 V 120 H 0 Z' stroke='rgba(69,183,255,0.25)' stroke-width='1.5'/%3E%3C/svg%3E") no-repeat bottom center / cover;
      opacity: 0.4;
      pointer-events: none;
    }
    .hero-banner .grid-container { position: relative; z-index: 2; }
    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 12px;
      color: var(--text-weak);
      margin-bottom: 20px;
    }
    .breadcrumb a { color: var(--text-weak); transition: color .2s; }
    .breadcrumb a:hover { color: var(--glow-blue); }
    .breadcrumb .sep { color: rgba(108, 127, 158, 0.5); }
    .hero-title {
      font-size: 40px;
      font-weight: 900;
      line-height: 1.25;
      letter-spacing: -0.5px;
      color: #fff;
      margin: 0 0 18px;
    }
    .hero-title .highlight {
      background: linear-gradient(135deg, #fff, var(--glow-blue));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-subtitle {
      font-size: 16px;
      color: var(--text-sub);
      line-height: 1.8;
      max-width: 560px;
      margin: 0 0 30px;
    }
    .hero-actions {
      display: flex;
      align-items: center;
      gap: 14px;
      flex-wrap: wrap;
      margin-bottom: 26px;
    }
    .hero-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 18px;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      font-size: 13px;
      color: var(--text-sub);
    }
    .hero-badge i {
      color: var(--lime-light);
      font-size: 15px;
    }
    .hero-image {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      border: var(--glass-border);
    }
    .hero-image img {
      width: 100%;
      height: 340px;
      object-fit: cover;
    }
    .hero-image::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 55%, rgba(6, 12, 24, 0.4));
      pointer-events: none;
    }
    @media (max-width: 1024px) {
      .hero-banner { padding: 110px 0 60px; min-height: auto; }
      .hero-title { font-size: 32px; }
      .hero-image { margin-top: 28px; }
      .hero-image img { height: 260px; }
    }
    @media (max-width: 640px) {
      .hero-banner { padding: 130px 0 40px; }
      .hero-title { font-size: 26px; line-height: 1.35; }
      .hero-actions { flex-direction: column; align-items: stretch; }
      .hero-actions .btn { width: 100%; justify-content: center; }
      .hero-badges { gap: 10px; flex-wrap: wrap; }
      .hero-image img { height: 200px; }
    }

    /* ===== 按钮体系 ===== */
    .btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      height: 44px;
      padding: 0 24px;
      border-radius: 10px;
      font-size: 15px;
      font-weight: 500;
      cursor: pointer;
      border: none;
      transition: all .25s ease;
      text-decoration: none;
      white-space: nowrap;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--primary-blue), var(--glow-blue));
      color: #fff;
      box-shadow: var(--shadow-glow);
    }
    .btn-primary:hover {
      filter: brightness(1.1);
      box-shadow: 0 10px 40px rgba(30, 111, 255, 0.5);
      transform: translateY(-1px);
    }
    .btn-primary:active {
      transform: translateY(1px);
      box-shadow: 0 4px 16px rgba(30, 111, 255, 0.3);
    }
    .btn-ghost {
      background: transparent;
      color: var(--text-sub);
      border: 1px solid rgba(120, 180, 255, 0.28);
    }
    .btn-ghost:hover {
      background: rgba(160, 200, 255, 0.12);
      color: #fff;
      border-color: rgba(120, 180, 255, 0.5);
    }
    .btn-ghost:active { transform: translateY(1px); }
    .btn-link {
      background: none;
      border: none;
      color: var(--glow-blue);
      font-size: 14px;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 0;
      height: auto;
    }
    .btn-link i { transition: transform .2s; }
    .btn-link:hover i { transform: translateX(3px); }

    /* ===== 板块通用 ===== */
    .section {
      padding: 90px 0;
      position: relative;
    }
    @media (max-width: 640px) {
      .section { padding: 60px 0; }
    }
    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      margin-bottom: 36px;
      gap: 16px;
      flex-wrap: wrap;
    }
    .section-tag {
      display: inline-flex;
      align-items: center;
      font-size: 12px;
      color: var(--glow-blue);
      background: rgba(69, 183, 255, 0.12);
      padding: 4px 12px;
      border-radius: 6px;
      letter-spacing: 1px;
      font-weight: 500;
      margin-bottom: 10px;
    }
    .section-title {
      font-size: 26px;
      font-weight: 700;
      color: #fff;
      margin: 0;
      position: relative;
      padding-left: 14px;
      line-height: 1.4;
    }
    .section-title::before {
      content: '';
      position: absolute;
      left: 0;
      top: 6px;
      bottom: 6px;
      width: 4px;
      background: linear-gradient(180deg, var(--glow-blue), var(--primary-blue));
      border-radius: 4px;
      box-shadow: 0 0 12px rgba(69, 183, 255, 0.6);
    }

    /* ===== 玻璃卡片 ===== */
    .glass-card {
      background: linear-gradient(135deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
      border: var(--glass-border);
      border-radius: var(--radius-card);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      box-shadow: var(--shadow-card);
      padding: 28px;
      transition: transform .3s, border-color .3s, box-shadow .3s;
    }
    .glass-card:hover {
      transform: translateY(-6px);
      border-color: rgba(160, 200, 255, 0.3);
      box-shadow: 0 16px 48px -8px rgba(0, 0, 0, 0.5);
    }

    /* ===== 核心优势 ===== */
    .advantages-section {
      background: var(--bg-deep);
    }
    .advantage-grid .cell:nth-child(2) { margin-top: 24px; }
    .advantage-grid .cell:nth-child(4) { margin-top: 24px; }
    .advantage-card {
      background: var(--bg-card);
      border: var(--glass-border);
      border-radius: var(--radius-card);
      padding: 32px 28px;
      position: relative;
      overflow: hidden;
      transition: transform .3s, border-color .3s, box-shadow .3s;
      height: 100%;
      min-height: 220px;
    }
    .advantage-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 2px;
      background: linear-gradient(90deg, transparent, var(--glow-blue), transparent);
      opacity: 0;
      transition: opacity .3s;
    }
    .advantage-card:hover {
      transform: translateY(-6px);
      border-color: rgba(160, 200, 255, 0.3);
      box-shadow: var(--shadow-card);
    }
    .advantage-card:hover::before { opacity: 1; }
    .adv-icon {
      width: 52px;
      height: 52px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      color: var(--glow-blue);
      background: rgba(69, 183, 255, 0.12);
      margin-bottom: 22px;
    }
    .advantage-card h3 {
      font-size: 18px;
      font-weight: 600;
      margin: 0 0 12px;
      color: #fff;
    }
    .advantage-card p {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.7;
      margin: 0;
    }
    @media (max-width: 1024px) {
      .advantage-grid .cell:nth-child(2), .advantage-grid .cell:nth-child(4) { margin-top: 0; }
      .advantage-card { min-height: auto; }
    }

    /* ===== 数据面板 ===== */
    .stats-section {
      background: var(--bg-page);
    }
    .stats-panel {
      background: linear-gradient(135deg, #0A1B3F, #12306B);
      border: var(--glass-border);
      border-radius: var(--radius-lg);
      padding: 44px 40px;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
      overflow: hidden;
      box-shadow: var(--shadow-card);
    }
    .stats-panel::before {
      content: '';
      position: absolute;
      top: -60%;
      left: 20%;
      width: 300px;
      height: 300px;
      background: radial-gradient(circle, rgba(30, 111, 255, 0.3), transparent 70%);
      border-radius: 50%;
    }
    .stats-item {
      text-align: center;
      position: relative;
      z-index: 1;
    }
    .stats-number {
      font-family: var(--font-number);
      font-size: 42px;
      font-weight: 700;
      color: #fff;
      text-shadow: 0 0 30px rgba(69, 183, 255, 0.4);
      line-height: 1.2;
    }
    .stats-label {
      font-size: 13px;
      color: var(--text-sub);
      margin-top: 8px;
    }
    @media (max-width: 768px) {
      .stats-panel { grid-template-columns: repeat(2, 1fr); padding: 30px 20px; gap: 24px; }
      .stats-number { font-size: 32px; }
    }

    /* ===== 资讯精选区 ===== */
    .news-section {
      background: var(--bg-deep);
    }
    .news-list-card {
      display: flex;
      gap: 18px;
      background: var(--bg-card);
      border: var(--glass-border);
      border-radius: var(--radius-card);
      padding: 18px;
      margin-bottom: 16px;
      transition: border-color .25s, transform .25s, box-shadow .25s;
      align-items: stretch;
    }
    .news-list-card:hover {
      border-color: rgba(160, 200, 255, 0.3);
      transform: translateY(-3px);
      box-shadow: var(--shadow-card);
    }
    .news-thumb {
      flex-shrink: 0;
      width: 140px;
      height: 90px;
      border-radius: 10px;
      overflow: hidden;
      background: #0D2553;
    }
    .news-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .news-content {
      flex: 1;
      min-width: 0;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .news-meta-row {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
    }
    .news-cat {
      display: inline-block;
      font-size: 12px;
      color: var(--glow-blue);
      background: rgba(69, 183, 255, 0.1);
      padding: 2px 10px;
      border-radius: 999px;
      font-weight: 500;
    }
    .news-time {
      font-size: 12px;
      color: var(--text-weak);
      font-family: var(--font-number);
      letter-spacing: 0.5px;
    }
    .news-title {
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
      margin: 10px 0 6px;
      line-height: 1.5;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .news-summary {
      font-size: 13px;
      color: var(--text-sub);
      line-height: 1.6;
      display: -webkit-box;
      -webkit-line-clamp: 1;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .news-link {
      font-size: 13px;
      color: var(--glow-blue);
      display: inline-flex;
      align-items: center;
      gap: 4px;
      margin-top: 8px;
      transition: gap .2s;
    }
    .news-link:hover { gap: 8px; }
    /* 热门排行 */
    .hot-rank {
      background: var(--bg-card);
      border: var(--glass-border);
      border-radius: var(--radius-card);
      padding: 24px 22px;
    }
    .hot-title {
      font-size: 17px;
      font-weight: 600;
      color: #fff;
      margin: 0 0 6px;
      padding-left: 12px;
      position: relative;
    }
    .hot-title::before {
      content: '';
      position: absolute;
      left: 0;
      top: 5px;
      bottom: 5px;
      width: 3px;
      background: linear-gradient(180deg, var(--glow-blue), var(--primary-blue));
      border-radius: 3px;
    }
    .hot-subtitle {
      font-size: 12px;
      color: var(--text-weak);
      margin-bottom: 20px;
    }
    .rank-list {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .rank-item {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 12px 0;
      border-bottom: 1px dashed rgba(120, 180, 255, 0.12);
    }
    .rank-item:last-child { border-bottom: none; }
    .rank-num {
      font-family: var(--font-number);
      font-size: 22px;
      font-weight: 700;
      color: var(--glow-blue);
      width: 34px;
      text-align: center;
      flex-shrink: 0;
      opacity: 0.8;
    }
    .rank-item:nth-child(-n+3) .rank-num {
      color: #FFD166;
      opacity: 1;
    }
    .rank-name {
      flex: 1;
      min-width: 0;
      font-size: 14px;
      color: var(--text-main);
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      transition: color .2s;
    }
    .rank-item:hover .rank-name { color: var(--glow-blue); }
    .rank-views {
      font-size: 12px;
      color: var(--text-weak);
      flex-shrink: 0;
      font-family: var(--font-number);
    }
    @media (max-width: 640px) {
      .news-thumb { width: 90px; height: 68px; }
      .news-title { white-space: normal; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
      .news-summary { display: none; }
    }

    /* ===== 推荐栏目 ===== */
    .channels-section {
      background: var(--bg-page);
    }
    .channel-grid .cell:nth-child(2) { margin-top: 16px; }
    .channel-grid .cell:nth-child(3) { margin-top: 16px; }
    .channel-card {
      background: var(--bg-card);
      border: var(--glass-border);
      border-radius: var(--radius-card);
      padding: 30px 26px;
      text-align: center;
      position: relative;
      overflow: hidden;
      transition: transform .3s, border-color .3s, box-shadow .3s;
      height: calc(100% - 16px);
    }
    .channel-grid .cell { margin-bottom: 16px; }
    .channel-card:hover {
      transform: translateY(-6px);
      border-color: rgba(160, 200, 255, 0.3);
      box-shadow: var(--shadow-card);
    }
    .channel-icon {
      width: 60px;
      height: 60px;
      margin: 0 auto 18px;
      border-radius: 16px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      color: var(--glow-blue);
      background: rgba(69, 183, 255, 0.1);
      transition: transform .3s, background .3s;
    }
    .channel-card:hover .channel-icon {
      transform: scale(1.08);
      background: rgba(69, 183, 255, 0.2);
    }
    .channel-card h3 {
      font-size: 17px;
      font-weight: 600;
      color: #fff;
      margin: 0 0 10px;
    }
    .channel-card p {
      font-size: 13px;
      color: var(--text-sub);
      line-height: 1.6;
      margin: 0 0 16px;
    }
    .channel-link {
      font-size: 13px;
      color: var(--glow-blue);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .channel-link:hover { gap: 8px; }
    @media (max-width: 1024px) {
      .channel-grid .cell:nth-child(2), .channel-grid .cell:nth-child(3) { margin-top: 0; }
    }

    /* ===== 适用场景 ===== */
    .scene-section {
      background: var(--bg-deep);
    }
    .scene-card {
      background: linear-gradient(135deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.01));
      border: var(--glass-border);
      border-radius: var(--radius-card);
      padding: 34px 28px;
      height: 100%;
      position: relative;
      overflow: hidden;
      transition: transform .3s, border-color .3s;
    }
    .scene-card:hover {
      transform: translateY(-6px);
      border-color: rgba(160, 200, 255, 0.35);
    }
    .scene-card .step-number {
      font-family: var(--font-number);
      font-size: 52px;
      font-weight: 700;
      color: transparent;
      -webkit-text-stroke: 1px rgba(69, 183, 255, 0.5);
      position: absolute;
      top: 20px;
      right: 24px;
      line-height: 1;
      opacity: 0.7;
    }
    .scene-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: rgba(69, 183, 255, 0.12);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 19px;
      color: var(--glow-blue);
      margin-bottom: 20px;
    }
    .scene-card h3 {
      font-size: 18px;
      font-weight: 600;
      color: #fff;
      margin: 0 0 12px;
    }
    .scene-card p {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.7;
      margin: 0;
    }
    @media (max-width: 640px) {
      .scene-card { padding: 26px 20px; }
    }

    /* ===== FAQ ===== */
    .faq-section {
      background: var(--bg-page);
    }
    .faq-side {
      position: sticky;
      top: 90px;
    }
    .faq-guide {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.7;
      margin: 18px 0 24px;
    }
    .faq-contact-link {
      color: var(--glow-blue);
      font-size: 14px;
      font-weight: 500;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .faq-accordion .accordion-item {
      background: var(--bg-card);
      border: var(--glass-border);
      border-radius: 12px;
      margin-bottom: 12px;
      overflow: hidden;
      transition: border-color .3s, box-shadow .3s;
    }
    .faq-accordion .accordion-item.is-active {
      border-color: rgba(69, 183, 255, 0.5);
      box-shadow: 0 0 20px rgba(69, 183, 255, 0.1);
    }
    .faq-accordion .accordion-title {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
      background: transparent;
      border: none;
      cursor: pointer;
      text-decoration: none;
      position: relative;
    }
    .faq-accordion .accordion-title::after {
      content: '+';
      font-size: 22px;
      font-weight: 400;
      color: var(--glow-blue);
      width: 30px;
      height: 30px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      background: rgba(69, 183, 255, 0.1);
      transition: transform .3s;
      flex-shrink: 0;
    }
    .faq-accordion .accordion-item.is-active .accordion-title::after {
      content: '−';
      transform: rotate(180deg);
    }
    .faq-accordion .accordion-content {
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.7;
      border: none;
      background: transparent;
    }
    .faq-accordion .accordion-content p { margin: 0 0 8px; }
    .faq-accordion .accordion-content p:last-child { margin-bottom: 0; }
    @media (max-width: 1024px) {
      .faq-side { position: static; }
    }

    /* ===== CTA ===== */
    .cta-section {
      background: var(--bg-deep);
      padding: 80px 0;
    }
    .cta-panel {
      background: var(--glass-bg);
      border: var(--glass-border);
      border-radius: var(--radius-lg);
      padding: 48px;
      position: relative;
      overflow: hidden;
      text-align: center;
      box-shadow: var(--shadow-card);
    }
    .cta-panel::before {
      content: '';
      position: absolute;
      top: -50%;
      left: 10%;
      width: 400px;
      height: 400px;
      background: radial-gradient(circle, rgba(30, 111, 255, 0.25), transparent 65%);
      border-radius: 50%;
      pointer-events: none;
    }
    .cta-panel::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 40px;
      background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 60' fill='none'%3E%3Cpath d='M0 20 Q 100 0 200 15 T 400 20 T 600 10 T 800 24 T 1000 16 T 1200 22 V 60 H 0 Z' stroke='rgba(69,183,255,0.2)' stroke-width='1'/%3E%3C/svg%3E") no-repeat bottom center / cover;
      opacity: 0.4;
    }
    .cta-panel h2 {
      font-size: 26px;
      font-weight: 700;
      color: #fff;
      margin: 0 0 14px;
      position: relative;
      z-index: 1;
    }
    .cta-panel > p {
      font-size: 14px;
      color: var(--text-sub);
      margin: 0 0 28px;
      position: relative;
      z-index: 1;
    }
    .cta-form {
      display: flex;
      gap: 12px;
      max-width: 720px;
      margin: 0 auto 16px;
      flex-wrap: wrap;
      justify-content: center;
      position: relative;
      z-index: 1;
    }
    .cta-form input,
    .cta-form select {
      height: 44px;
      border-radius: 8px;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.18);
      color: var(--text-main);
      padding: 0 14px;
      font-size: 14px;
      flex: 1;
      min-width: 150px;
      max-width: 200px;
      transition: border-color .25s, box-shadow .25s;
    }
    .cta-form input::placeholder, .cta-form select {
      color: var(--text-sub);
    }
    .cta-form input:focus,
    .cta-form select:focus {
      border-color: var(--glow-blue);
      box-shadow: 0 0 0 3px rgba(69, 183, 255, 0.2);
      outline: none;
    }
    .cta-form select {
      appearance: none;
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23AEBBD4' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
      background-repeat: no-repeat;
      background-position: right 12px center;
      padding-right: 30px;
      cursor: pointer;
    }
    .cta-form select option {
      background: var(--bg-card);
      color: var(--text-main);
    }
    .cta-form .btn-primary {
      flex-shrink: 0;
      width: 120px;
      justify-content: center;
    }
    .cta-privacy {
      font-size: 12px;
      color: var(--text-weak);
      position: relative;
      z-index: 1;
      margin-top: 12px;
    }
    @media (max-width: 640px) {
      .cta-panel { padding: 32px 20px; }
      .cta-form { flex-direction: column; align-items: stretch; }
      .cta-form input, .cta-form select {
        max-width: 100%;
        width: 100%;
      }
      .cta-form .btn-primary { width: 100%; }
    }

    /* ===== 页脚 ===== */
    .site-footer {
      background: #040810;
      border-top: 1px solid rgba(120, 180, 255, 0.1);
      padding-top: 60px;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 1.4fr 0.8fr 0.8fr 1.2fr;
      gap: 40px;
      padding-bottom: 40px;
    }
    .footer-brand .brand-logo { margin-bottom: 16px; }
    .footer-desc {
      font-size: 13px;
      color: var(--text-weak);
      line-height: 1.7;
      max-width: 320px;
      margin: 0;
    }
    .footer-col h5 {
      font-size: 15px;
      font-weight: 600;
      color: #fff;
      margin: 0 0 18px;
    }
    .footer-col ul {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-col ul li { margin-bottom: 10px; }
    .footer-col ul a {
      font-size: 13px;
      color: var(--text-sub);
      transition: color .2s;
    }
    .footer-col ul a:hover { color: var(--glow-blue); }
    .footer-contact-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 13px;
      color: var(--text-sub);
      margin-bottom: 12px;
    }
    .footer-contact-item i {
      color: var(--glow-blue);
      font-size: 14px;
      width: 16px;
      text-align: center;
    }
    .footer-divider {
      border: none;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(69, 183, 255, 0.4), transparent);
      margin: 0;
    }
    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 20px 0 26px;
      font-size: 12px;
      color: var(--text-weak);
      flex-wrap: wrap;
      gap: 10px;
    }
    @media (max-width: 768px) {
      .footer-top { grid-template-columns: 1fr 1fr; gap: 30px; }
    }
    @media (max-width: 520px) {
      .footer-top { grid-template-columns: 1fr; gap: 24px; }
      .footer-bottom { flex-direction: column; text-align: center; justify-content: center; }
    }

    /* ===== 空态 ===== */
    .empty-state {
      text-align: center;
      padding: 50px 20px;
      background: var(--bg-card);
      border: var(--glass-border);
      border-radius: var(--radius-card);
    }
    .empty-state i {
      font-size: 36px;
      color: var(--text-weak);
      margin-bottom: 14px;
      display: block;
    }
    .empty-state p {
      color: var(--text-sub);
      font-size: 14px;
      margin-bottom: 18px;
    }

    /* ===== 动画 ===== */
    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(-8px); }
      to { opacity: 1; transform: translateY(0); }
    }
    @keyframes livePulse {
      0%, 100% { opacity: 1; }
      50% { opacity: 0.35; }
    }
    .live-dot {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #FF4D4F;
      margin-right: 6px;
      animation: livePulse 1.5s infinite;
      box-shadow: 0 0 8px rgba(255, 77, 79, 0.6);
    }
    @media (max-width: 640px) {
      .section-title { font-size: 20px; }
      .section-head { margin-bottom: 24px; }
    }

/* roulang page: category2 */
:root {
  --bg-page: #060C18;
  --bg-deep: #081226;
  --bg-card: #0C1B36;
  --glass-bg: rgba(15, 30, 60, 0.55);
  --glass-border: 1px solid rgba(120, 180, 255, 0.16);
  --primary-blue: #1E6FFF;
  --glow-blue: #45B7FF;
  --lime-light: #00E6A0;
  --text-main: #EEF4FF;
  --text-sub: #AEBBD4;
  --text-weak: #6C7F9E;
  --grad-hero: linear-gradient(135deg, #081226 0%, #12306B 55%, #0A1B3F 100%);
  --radius-sm: 8px;
  --radius-card: 14px;
  --radius-lg: 22px;
  --shadow-card: 0 12px 40px -8px rgba(0, 0, 0, 0.42);
  --shadow-glow: 0 8px 30px rgba(30, 111, 255, 0.35);
  --font-main: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', -apple-system, sans-serif;
  --font-score: 'DIN Alternate', 'Barlow Condensed', 'Roboto Condensed', 'Arial Narrow', sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  background: var(--bg-page);
  color: var(--text-main);
  line-height: 1.8;
  font-size: 15px;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--glow-blue); text-decoration: none; transition: color .2s; }
a:hover { color: #fff; }
button, input, select, textarea { font-family: inherit; }
ul, ol { list-style: none; }
.grid-container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }
@media screen and (max-width: 640px) {
  .grid-container { padding-left: 16px; padding-right: 16px; }
}
/* ===== 顶部导航 ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 72px;
  background: rgba(6, 12, 24, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(120, 180, 255, 0.08);
  z-index: 1000;
  transition: background .3s ease, box-shadow .3s ease;
}
.site-header.scrolled {
  background: rgba(5, 10, 22, 0.94);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.45);
}
.header-inner {
  display: flex;
  align-items: center;
  height: 72px;
  gap: 20px;
}
.brand-logo {
  display: flex;
  align-items: baseline;
  gap: 2px;
  white-space: nowrap;
  flex-shrink: 0;
}
.brand-main {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 1px;
  color: #fff;
}
.brand-sub {
  font-size: 14px;
  font-weight: 300;
  color: var(--glow-blue);
  letter-spacing: 2px;
}
.main-search {
  flex: 1;
  max-width: 520px;
  display: flex;
  align-items: center;
  height: 42px;
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  transition: box-shadow .25s;
}
.main-search:focus-within {
  box-shadow: 0 0 0 3px rgba(30, 111, 255, 0.25), 0 4px 20px rgba(0, 0, 0, 0.3);
}
.main-search svg {
  width: 18px; height: 18px;
  fill: var(--text-weak);
  margin-left: 14px;
  flex-shrink: 0;
}
.main-search input {
  flex: 1;
  height: 42px;
  border: none;
  outline: none;
  background: transparent;
  padding: 0 12px;
  font-size: 14px;
  color: #111;
  min-width: 0;
}
.main-search input::placeholder { color: #8896ab; }
.main-search button {
  height: 32px;
  margin-right: 5px;
  padding: 0 16px;
  background: linear-gradient(135deg, var(--primary-blue), var(--glow-blue));
  border: none;
  border-radius: 8px;
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: filter .2s, box-shadow .2s;
  flex-shrink: 0;
}
.main-search button:hover {
  filter: brightness(1.1);
  box-shadow: var(--shadow-glow);
}
.header-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: 4px;
  flex-shrink: 0;
}
.nav-link {
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-sub);
  border-radius: 8px;
  position: relative;
  white-space: nowrap;
}
.nav-link:after {
  content: '';
  position: absolute;
  left: 14px; right: 14px; bottom: 2px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-blue), var(--glow-blue));
  border-radius: 2px;
  transform: scaleX(0);
  transition: transform .25s;
}
.nav-link:hover { color: #fff; }
.nav-link:hover:after { transform: scaleX(1); }
.nav-link.active { color: #fff; }
.nav-link.active:after { transform: scaleX(1); }
.mobile-toggle {
  display: none;
  width: 42px; height: 42px;
  background: rgba(255, 255, 255, 0.06);
  border: var(--glass-border);
  border-radius: 8px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  flex-shrink: 0;
}
.mobile-toggle span {
  width: 18px; height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: all .3s;
}
.mobile-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-toggle.open span:nth-child(2) { opacity: 0; }
.mobile-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-menu {
  display: none;
  position: fixed;
  top: 72px; left: 0; right: 0;
  background: rgba(6, 12, 24, 0.98);
  backdrop-filter: blur(20px);
  padding: 20px 24px;
  border-bottom: 1px solid rgba(120, 180, 255, 0.15);
  z-index: 999;
  flex-direction: column;
  gap: 8px;
}
.mobile-menu.open { display: flex; }
.mobile-menu .nav-link {
  padding: 14px 16px;
  font-size: 16px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 10px;
}
.mobile-menu .nav-link.active {
  background: rgba(30, 111, 255, 0.15);
  color: #fff;
  border-left: 3px solid var(--glow-blue);
}
@media screen and (max-width: 1024px) {
  .main-search { max-width: 380px; }
  .header-nav { display: none; }
  .mobile-toggle { display: flex; }
}
@media screen and (max-width: 640px) {
  .site-header { height: 64px; }
  .header-inner { height: 64px; gap: 12px; }
  .brand-main { font-size: 19px; }
  .brand-sub { font-size: 13px; }
  .mobile-menu { top: 64px; }
}
/* ===== 通用板块间距 ===== */
main { padding-top: 72px; }
.section-wrap { padding: 80px 0; }
@media screen and (max-width: 640px) {
  .section-wrap { padding: 56px 0; }
}
.section-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
}
.section-head .bar {
  width: 4px; height: 24px;
  background: linear-gradient(180deg, var(--glow-blue), var(--primary-blue));
  border-radius: 4px;
  box-shadow: 0 0 10px rgba(69, 183, 255, 0.5);
  flex-shrink: 0;
}
.section-head h2 {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: #fff;
  margin: 0;
}
.section-head .sub-label {
  font-size: 12px;
  color: var(--glow-blue);
  background: rgba(69, 183, 255, 0.1);
  padding: 4px 12px;
  border-radius: 20px;
  font-weight: 500;
}
.section-head .more-link {
  margin-left: auto;
  font-size: 14px;
  color: var(--text-sub);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.section-head .more-link i { transition: transform .2s; }
.section-head .more-link:hover i { transform: translateX(4px); }
/* ===== Hero 区块 ===== */
.entry-hero {
  position: relative;
  min-height: 460px;
  background: var(--grad-hero);
  display: flex;
  align-items: center;
  overflow: hidden;
}
.entry-hero .bg-image {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.35;
}
.entry-hero .bg-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(6, 12, 24, 0.92) 0%, rgba(8, 18, 38, 0.82) 50%, rgba(10, 27, 63, 0.75) 100%);
  z-index: 1;
}
.entry-hero .track-line {
  position: absolute;
  bottom: -40px; right: -10%;
  width: 700px; height: 380px;
  z-index: 0;
  opacity: 0.45;
  pointer-events: none;
}
.entry-hero .hero-content {
  position: relative;
  z-index: 2;
  padding: 80px 0 56px;
}
.hero-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-weak);
  margin-bottom: 20px;
}
.hero-breadcrumb a { color: var(--text-sub); }
.hero-breadcrumb a:hover { color: #fff; }
.hero-breadcrumb .sep { color: var(--text-weak); opacity: 0.5; }
.entry-hero h1 {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
  color: #fff;
  max-width: 620px;
}
.entry-hero h1 .highlight {
  background: linear-gradient(135deg, var(--primary-blue), var(--glow-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.entry-hero .hero-sub {
  font-size: 16px;
  color: var(--text-sub);
  max-width: 560px;
  line-height: 1.8;
  margin-bottom: 32px;
}
.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 28px;
  background: linear-gradient(135deg, var(--primary-blue), var(--glow-blue));
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
  color: #fff;
  cursor: pointer;
  transition: filter .2s, box-shadow .2s, transform .15s;
  text-decoration: none;
  border: none;
}
.btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 8px 30px rgba(30, 111, 255, 0.45);
  color: #fff;
}
.btn-primary:active { transform: translateY(1px); }
.btn-primary.lg { height: 52px; padding: 0 36px; font-size: 16px; }
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 28px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(120, 180, 255, 0.28);
  border-radius: 10px;
  color: var(--text-main);
  font-size: 15px;
  cursor: pointer;
  transition: background .2s, border-color .2s, color .2s;
  text-decoration: none;
}
.btn-ghost:hover {
  background: rgba(160, 200, 255, 0.12);
  border-color: rgba(160, 200, 255, 0.4);
  color: #fff;
}
.btn-ghost:active { transform: translateY(1px); }
.btn-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  font-size: 15px;
  color: var(--glow-blue);
  cursor: pointer;
  padding: 6px 0;
  text-decoration: none;
  transition: color .2s;
}
.btn-link i { transition: transform .2s; }
.btn-link:hover { color: #fff; }
.btn-link:hover i { transform: translateX(4px); }
.hero-badges {
  display: flex;
  gap: 20px;
  margin-top: 28px;
  flex-wrap: wrap;
}
.hero-badges .badge-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-sub);
}
.hero-badges .badge-item i { color: var(--lime-light); font-size: 16px; }
@media screen and (max-width: 640px) {
  .entry-hero { min-height: auto; }
  .entry-hero h1 { font-size: 26px; }
  .entry-hero .hero-content { padding: 56px 0 40px; }
  .hero-cta-group { flex-direction: column; align-items: stretch; }
  .hero-cta-group .btn-primary, .hero-cta-group .btn-ghost { width: 100%; height: 48px; }
}
/* ===== 入口矩阵 ===== */
.entrance-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: -64px;
  position: relative;
  z-index: 5;
}
.entrance-card {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  border: var(--glass-border);
  border-radius: var(--radius-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 32px 24px;
  text-align: center;
  transition: transform .25s, box-shadow .25s, border-color .25s;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.entrance-card:before {
  content: '';
  position: absolute;
  top: 0; left: 20%;
  right: 20%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--glow-blue), transparent);
  opacity: 0;
  transition: opacity .3s;
}
.entrance-card:hover {
  transform: translateY(-6px);
  border-color: rgba(160, 200, 255, 0.3);
  box-shadow: 0 16px 48px rgba(30, 111, 255, 0.25);
}
.entrance-card:hover:before { opacity: 1; }
.entrance-card .entrance-icon {
  width: 56px; height: 56px;
  margin: 0 auto 18px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(30, 111, 255, 0.3), rgba(69, 183, 255, 0.15));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--glow-blue);
  transition: transform .3s, box-shadow .3s;
}
.entrance-card:hover .entrance-icon {
  transform: scale(1.08);
  box-shadow: 0 0 24px rgba(69, 183, 255, 0.4);
}
.entrance-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}
.entrance-card p {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 16px;
  min-height: 44px;
}
.entrance-card .card-arrow {
  font-size: 14px;
  color: var(--glow-blue);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
@media screen and (max-width: 1024px) {
  .entrance-grid { grid-template-columns: repeat(2, 1fr); }
}
@media screen and (max-width: 640px) {
  .entrance-grid { grid-template-columns: 1fr; margin-top: -40px; }
}
/* ===== 功能与服务 ===== */
.feature-panel {
  background: var(--bg-deep);
  position: relative;
  overflow: hidden;
}
.feature-panel:before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: repeating-linear-gradient(90deg, rgba(120,180,255,0.25) 0px, rgba(120,180,255,0.25) 10px, transparent 10px, transparent 18px);
}
.feature-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.feature-item {
  display: flex;
  gap: 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(120, 180, 255, 0.08);
  border-radius: 12px;
  padding: 18px 20px;
  transition: border-color .2s, background .2s;
}
.feature-item:hover {
  border-color: rgba(69, 183, 255, 0.35);
  background: rgba(255, 255, 255, 0.05);
}
.feature-item .f-icon {
  width: 44px; height: 44px;
  flex-shrink: 0;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(30, 111, 255, 0.25), rgba(69, 183, 255, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--glow-blue);
}
.feature-item h4 {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 4px;
}
.feature-item p {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.7;
  margin: 0;
}
.flow-card {
  background: var(--glass-bg);
  border: var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  position: relative;
  overflow: hidden;
}
.flow-card:after {
  content: '';
  position: absolute;
  bottom: -80px; right: -80px;
  width: 200px; height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(69, 183, 255, 0.15), transparent 70%);
}
.flow-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}
.flow-card .flow-desc {
  font-size: 13px;
  color: var(--text-sub);
  margin-bottom: 32px;
}
.flow-step {
  position: relative;
  padding-left: 56px;
  margin-bottom: 32px;
}
.flow-step:last-child { margin-bottom: 0; }
.flow-step:not(:last-child):before {
  content: '';
  position: absolute;
  left: 19px; top: 44px; bottom: -20px;
  width: 2px;
  background: linear-gradient(180deg, var(--primary-blue), var(--glow-blue));
  opacity: 0.3;
}
.flow-step .step-num {
  position: absolute;
  left: 0; top: 0;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(30, 111, 255, 0.4), rgba(69, 183, 255, 0.2));
  border: 2px solid rgba(69, 183, 255, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-score);
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  box-shadow: 0 0 16px rgba(69, 183, 255, 0.3);
}
.flow-step h4 {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 4px;
}
.flow-step p {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.7;
  margin: 0;
}
@media screen and (max-width: 640px) {
  .flow-card { padding: 24px; }
  .feature-item { flex-direction: column; gap: 10px; }
}
/* ===== 平台数据 ===== */
.platform-stats {
  background: var(--bg-deep);
  border-top: 1px solid rgba(120, 180, 255, 0.1);
  border-bottom: 1px solid rgba(120, 180, 255, 0.1);
  padding: 56px 0;
  position: relative;
  overflow: hidden;
}
.platform-stats:before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 400px; height: 100%;
  background: radial-gradient(ellipse, rgba(30, 111, 255, 0.12), transparent 70%);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
  z-index: 1;
}
.stat-item {
  text-align: center;
  padding: 24px 16px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(120, 180, 255, 0.1);
  border-radius: var(--radius-card);
  transition: border-color .2s, box-shadow .2s;
}
.stat-item:hover {
  border-color: rgba(69, 183, 255, 0.4);
  box-shadow: 0 8px 32px rgba(30, 111, 255, 0.15);
}
.stat-value {
  font-family: var(--font-score);
  font-size: 38px;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
  text-shadow: 0 0 20px rgba(69, 183, 255, 0.4);
  letter-spacing: 1px;
}
.stat-label {
  font-size: 13px;
  color: var(--text-sub);
  margin-top: 6px;
}
@media screen and (max-width: 640px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .stat-value { font-size: 30px; }
}
/* ===== 适用场景 ===== */
.scene-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.scene-card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: transform .3s, box-shadow .3s;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(120, 180, 255, 0.1);
}
.scene-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 56px rgba(30, 111, 255, 0.25);
  border-color: rgba(160, 200, 255, 0.3);
}
.scene-card .scene-img {
  height: 180px;
  background-size: cover;
  background-position: center;
  position: relative;
}
.scene-card .scene-img:after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(12, 27, 54, 0.95) 100%);
}
.scene-card .scene-body {
  padding: 24px;
}
.scene-card .scene-icon {
  width: 42px; height: 42px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(30, 111, 255, 0.3), rgba(69, 183, 255, 0.15));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--glow-blue);
  margin-bottom: 14px;
}
.scene-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}
.scene-card p {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.75;
  margin: 0;
}
@media screen and (max-width: 1024px) {
  .scene-grid { grid-template-columns: repeat(2, 1fr); }
}
@media screen and (max-width: 640px) {
  .scene-grid { grid-template-columns: 1fr; }
}
/* ===== FAQ ===== */
.faq-section {
  background: var(--bg-deep);
  position: relative;
}
.faq-section:before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: repeating-linear-gradient(90deg, rgba(120,180,255,0.2) 0px, rgba(120,180,255,0.2) 12px, transparent 12px, transparent 20px);
}
.faq-layout {
  display: flex;
  gap: 48px;
}
.faq-side {
  flex: 0 0 320px;
  position: sticky;
  top: 100px;
  align-self: flex-start;
}
.faq-side h2 {
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  line-height: 1.4;
}
.faq-side .side-desc {
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 20px;
  line-height: 1.8;
}
.faq-side .side-contact {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--glow-blue);
}
.faq-list {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(120, 180, 255, 0.1);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color .3s, box-shadow .3s;
}
.faq-item.active {
  border-color: rgba(69, 183, 255, 0.5);
  box-shadow: 0 8px 32px rgba(30, 111, 255, 0.15);
}
.faq-item .faq-question {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  cursor: pointer;
  user-select: none;
}
.faq-item .faq-q-icon {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: rgba(69, 183, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: var(--glow-blue);
  flex-shrink: 0;
}
.faq-item .faq-q-text {
  flex: 1;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
}
.faq-item .faq-toggle {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 1px solid rgba(120, 180, 255, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--glow-blue);
  font-size: 14px;
  flex-shrink: 0;
  transition: transform .3s, background .3s;
}
.faq-item.active .faq-toggle {
  transform: rotate(45deg);
  background: rgba(69, 183, 255, 0.25);
}
.faq-item .faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease, padding .3s ease;
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.75;
}
.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 20px 20px;
  padding-left: 62px;
}
@media screen and (max-width: 1024px) {
  .faq-layout { flex-direction: column; gap: 32px; }
  .faq-side { flex: 1; position: static; }
}
/* ===== CTA ===== */
.cta-section {
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.cta-box {
  background: linear-gradient(145deg, rgba(15, 30, 60, 0.8), rgba(10, 25, 55, 0.65));
  border: var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 48px;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(12px);
}
.cta-box:before {
  content: '';
  position: absolute;
  top: -40%; left: 30%;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(69, 183, 255, 0.12), transparent 70%);
  pointer-events: none;
}
.cta-box:after {
  content: '';
  position: absolute;
  bottom: -1px; right: 0; left: 0;
  height: 4px;
  background: repeating-linear-gradient(90deg, rgba(69,183,255,0.4) 0px, rgba(69,183,255,0.4) 24px, transparent 24px, transparent 40px);
}
.cta-box h2 {
  font-size: 26px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}
.cta-box .cta-sub {
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 32px;
  position: relative;
  z-index: 1;
}
.cta-form {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}
.cta-form .form-field {
  flex: 1;
  min-width: 140px;
}
.cta-form .form-field input,
.cta-form .form-field select {
  width: 100%;
  height: 44px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  color: #fff;
  padding: 0 14px;
  font-size: 14px;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.cta-form .form-field input:focus,
.cta-form .form-field select:focus {
  border-color: var(--glow-blue);
  box-shadow: 0 0 0 3px rgba(69, 183, 255, 0.2);
}
.cta-form .form-field input::placeholder { color: var(--text-weak); }
.cta-form .form-field select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23AEBBD4' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  cursor: pointer;
}
.cta-form .form-field select option { background: #0C1B36; color: #fff; }
.cta-form .btn-primary {
  width: 160px;
  flex-shrink: 0;
}
.cta-privacy {
  margin-top: 14px;
  font-size: 12px;
  color: var(--text-weak);
}
@media screen and (max-width: 640px) {
  .cta-box { padding: 28px 20px; }
  .cta-form { flex-direction: column; }
  .cta-form .btn-primary { width: 100%; }
}
/* ===== 页脚 ===== */
.site-footer {
  background: #040810;
  border-top: 1px solid rgba(120, 180, 255, 0.08);
  padding: 56px 0 20px;
}
.footer-top {
  display: flex;
  gap: 40px;
  justify-content: space-between;
  flex-wrap: wrap;
}
.footer-brand {
  max-width: 320px;
}
.footer-brand .brand-logo { margin-bottom: 14px; }
.footer-desc {
  font-size: 13px;
  color: var(--text-weak);
  line-height: 1.9;
  margin: 0;
}
.footer-col h5 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
  font-size: 13px;
  color: var(--text-sub);
  transition: color .2s, padding-left .2s;
  padding-left: 0;
}
.footer-col ul li a:hover {
  color: var(--glow-blue);
  padding-left: 4px;
}
.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-sub);
  margin-bottom: 10px;
}
.footer-contact-item i { color: var(--glow-blue); width: 16px; text-align: center; }
.footer-divider {
  border: none;
  height: 1px;
  margin: 40px 0 20px;
  background: linear-gradient(90deg, transparent, rgba(69, 183, 255, 0.3), transparent);
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 12px;
  color: var(--text-weak);
}
@media screen and (max-width: 640px) {
  .footer-top { flex-direction: column; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
/* ===== 辅助 ===== */
.field-label {
  font-size: 14px;
  margin-bottom: 6px;
  display: block;
  color: var(--text-sub);
}

/* roulang page: category3 */
:root {
      --bg-page: #060C18;
      --bg-deep: #081226;
      --bg-card: #0C1B36;
      --glass-bg: rgba(15, 30, 60, 0.55);
      --glass-border: 1px solid rgba(120, 180, 255, 0.16);
      --primary-blue: #1E6FFF;
      --glow-blue: #45B7FF;
      --lime-light: #00E6A0;
      --text-main: #EEF4FF;
      --text-sub: #AEBBD4;
      --text-weak: #6C7F9E;
      --grad-hero: linear-gradient(135deg, #081226 0%, #12306B 55%, #0A1B3F 100%);
      --radius-sm: 8px;
      --radius-card: 14px;
      --radius-lg: 22px;
      --shadow-card: 0 12px 40px -8px rgba(0, 0, 0, 0.42);
      --shadow-glow: 0 8px 30px rgba(30, 111, 255, 0.35);
      --font-main: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
      --font-digital: "DIN Alternate", "Barlow Condensed", "Arial Narrow", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      background: var(--bg-page);
      color: var(--text-main);
      font-family: var(--font-main);
      font-size: 15px;
      line-height: 1.8;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    a {
      color: var(--glow-blue);
      text-decoration: none;
      transition: color 0.25s ease;
    }
    a:hover {
      color: #fff;
    }
    a:focus {
      outline: 2px solid rgba(69, 183, 255, 0.6);
      outline-offset: 2px;
    }
    a:active {
      opacity: 0.8;
    }

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

    button,
    input,
    select,
    textarea {
      font-family: var(--font-main);
      font-size: 15px;
    }

    button:focus,
    input:focus,
    select:focus {
      outline: none;
    }

    .grid-container {
      max-width: 1200px;
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    @media screen and (max-width: 640px) {
      .grid-container {
        padding-left: 16px;
        padding-right: 16px;
      }
      body {
        font-size: 14px;
      }
    }

    /* ---- Header ---- */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      height: 68px;
      background: rgba(6, 12, 24, 0.85);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(120, 180, 255, 0.08);
      transition: background 0.3s ease, box-shadow 0.3s ease;
    }
    .site-header.scrolled {
      background: rgba(6, 12, 24, 0.95);
      box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
    }

    .header-inner {
      display: flex;
      align-items: center;
      height: 68px;
      gap: 24px;
    }

    .brand-logo {
      display: flex;
      align-items: baseline;
      gap: 4px;
      flex-shrink: 0;
    }
    .brand-main {
      font-size: 22px;
      font-weight: 800;
      letter-spacing: 1px;
      color: var(--text-main);
      background: linear-gradient(135deg, #ffffff 0%, var(--glow-blue) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .brand-sub {
      font-size: 12px;
      font-weight: 400;
      color: var(--glow-blue);
      letter-spacing: 2px;
      border-left: 1px solid rgba(120, 180, 255, 0.25);
      padding-left: 8px;
    }

    .header-search {
      flex: 1;
      max-width: 520px;
      position: relative;
      display: flex;
      align-items: center;
    }
    .header-search .search-icon {
      position: absolute;
      left: 14px;
      top: 50%;
      transform: translateY(-50%);
      width: 18px;
      height: 18px;
      color: #7A8BA8;
      pointer-events: none;
    }
    .header-search input {
      width: 100%;
      height: 42px;
      border: none;
      background: #FFFFFF;
      border-radius: 12px;
      padding-left: 42px;
      padding-right: 86px;
      font-size: 14px;
      color: #081226;
      transition: box-shadow 0.25s ease;
    }
    .header-search input::placeholder {
      color: #8A98B5;
    }
    .header-search input:focus {
      box-shadow: 0 0 0 3px rgba(30, 111, 255, 0.25);
    }
    .header-search .search-btn {
      position: absolute;
      right: 6px;
      top: 50%;
      transform: translateY(-50%);
      height: 30px;
      padding: 0 16px;
      border: none;
      border-radius: 8px;
      background: linear-gradient(135deg, #1E6FFF, #45B7FF);
      color: #fff;
      font-size: 13px;
      font-weight: 600;
      cursor: pointer;
      transition: filter 0.25s ease, box-shadow 0.25s ease;
    }
    .header-search .search-btn:hover {
      filter: brightness(1.1);
      box-shadow: 0 4px 16px rgba(30, 111, 255, 0.4);
    }
    .header-search .search-btn:active {
      transform: translateY(-50%) translateY(1px);
    }

    .header-nav {
      display: flex;
      align-items: center;
      gap: 6px;
      margin-left: auto;
      flex-shrink: 0;
    }
    .nav-link {
      height: 68px;
      display: flex;
      align-items: center;
      padding: 0 12px;
      font-size: 14px;
      font-weight: 500;
      color: var(--text-sub);
      border-bottom: 2px solid transparent;
      transition: color 0.25s ease, border-color 0.25s ease;
    }
    .nav-link:hover {
      color: #fff;
      border-bottom-color: var(--glow-blue);
    }
    .nav-link:active {
      color: var(--glow-blue);
    }
    .nav-link.active {
      color: #ffffff;
      border-bottom-color: var(--glow-blue);
      text-shadow: 0 0 12px rgba(69, 183, 255, 0.5);
    }

    .hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: transparent;
      border: none;
      cursor: pointer;
      padding: 8px;
    }
    .hamburger span {
      display: block;
      width: 22px;
      height: 2px;
      background: var(--text-main);
      border-radius: 2px;
      transition: transform 0.3s ease, opacity 0.3s ease;
    }
    .hamburger.open span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }
    .hamburger.open span:nth-child(2) {
      opacity: 0;
    }
    .hamburger.open span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }

    @media screen and (max-width: 1024px) {
      .header-inner {
        gap: 14px;
      }
      .nav-link {
        padding: 0 8px;
        font-size: 13px;
      }
      .header-search {
        max-width: 360px;
      }
    }

    @media screen and (max-width: 768px) {
      .site-header {
        height: auto;
      }
      .header-inner {
        flex-wrap: wrap;
        height: auto;
        padding: 10px 0;
        gap: 10px;
      }
      .header-search {
        order: 3;
        max-width: 100%;
        flex: 0 0 100%;
      }
      .header-search input {
        height: 40px;
      }
      .header-nav {
        display: none;
        order: 4;
        flex: 0 0 100%;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        background: rgba(6, 12, 24, 0.98);
        padding: 8px 0;
        border-top: 1px solid rgba(120, 180, 255, 0.08);
        border-radius: 0 0 12px 12px;
      }
      .header-nav.open {
        display: flex;
      }
      .nav-link {
        height: 44px;
        padding: 0 16px;
        border-bottom: none;
        justify-content: flex-start;
      }
      .nav-link.active {
        border-left: 3px solid var(--glow-blue);
        background: rgba(69, 183, 255, 0.06);
      }
      .hamburger {
        display: flex;
        margin-left: auto;
      }
    }

    /* ---- Help Hero ---- */
    .help-hero {
      padding-top: 140px;
      padding-bottom: 64px;
      background: var(--grad-hero);
      position: relative;
      overflow: hidden;
    }
    .help-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      opacity: 0.18;
      z-index: 0;
    }
    .help-hero::after {
      content: "";
      position: absolute;
      top: -120px;
      right: -80px;
      width: 420px;
      height: 420px;
      background: rgba(69, 183, 255, 0.12);
      border-radius: 50%;
      filter: blur(80px);
      z-index: 0;
    }

    .help-hero-inner {
      position: relative;
      z-index: 2;
      text-align: center;
      background: var(--glass-bg);
      border: var(--glass-border);
      border-radius: var(--radius-lg);
      padding: 48px 40px;
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      box-shadow: var(--shadow-card);
    }
    .help-hero-inner .hero-breadcrumb {
      font-size: 12px;
      color: var(--text-weak);
      margin-bottom: 16px;
      letter-spacing: 0.5px;
    }
    .help-hero-inner .hero-breadcrumb a {
      color: var(--text-weak);
    }
    .help-hero-inner .hero-breadcrumb a:hover {
      color: var(--glow-blue);
    }
    .help-hero-inner h1 {
      font-size: 34px;
      font-weight: 800;
      line-height: 1.4;
      color: var(--text-main);
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }
    .help-hero-inner .hero-desc {
      font-size: 16px;
      color: var(--text-sub);
      max-width: 640px;
      margin: 0 auto 32px;
      line-height: 1.8;
    }

    .help-search-large {
      position: relative;
      max-width: 640px;
      margin: 0 auto 24px;
    }
    .help-search-large .search-icon {
      position: absolute;
      left: 18px;
      top: 50%;
      transform: translateY(-50%);
      width: 20px;
      height: 20px;
      color: #7A8BA8;
    }
    .help-search-large input {
      width: 100%;
      height: 50px;
      border: none;
      background: rgba(255, 255, 255, 0.96);
      border-radius: 12px;
      padding-left: 50px;
      padding-right: 100px;
      font-size: 15px;
      color: #081226;
      box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
      transition: box-shadow 0.25s ease;
    }
    .help-search-large input:focus {
      box-shadow: 0 0 0 3px rgba(69, 183, 255, 0.3), 0 4px 24px rgba(0, 0, 0, 0.25);
    }
    .help-search-large .help-search-btn {
      position: absolute;
      right: 6px;
      top: 50%;
      transform: translateY(-50%);
      height: 38px;
      padding: 0 22px;
      border: none;
      border-radius: 8px;
      background: linear-gradient(135deg, #1E6FFF, #45B7FF);
      color: #fff;
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
      transition: filter 0.25s ease, box-shadow 0.25s ease;
    }
    .help-search-large .help-search-btn:hover {
      filter: brightness(1.1);
      box-shadow: 0 4px 18px rgba(30, 111, 255, 0.5);
    }
    .help-search-large .help-search-btn:active {
      transform: translateY(-50%) translateY(1px);
    }

    .help-tags {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 10px;
    }
    .help-tag {
      display: inline-block;
      padding: 6px 18px;
      border-radius: 999px;
      background: rgba(120, 180, 255, 0.08);
      border: 1px solid rgba(120, 180, 255, 0.16);
      color: var(--text-sub);
      font-size: 13px;
      cursor: pointer;
      transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
    }
    .help-tag:hover {
      background: rgba(120, 180, 255, 0.16);
      color: #fff;
      border-color: rgba(69, 183, 255, 0.4);
    }
    .help-tag.active {
      background: linear-gradient(135deg, rgba(30, 111, 255, 0.3), rgba(69, 183, 255, 0.2));
      border-color: rgba(69, 183, 255, 0.5);
      color: #fff;
      font-weight: 600;
    }
    .help-tag:focus {
      outline: 2px solid rgba(69, 183, 255, 0.5);
      outline-offset: 2px;
    }

    @media screen and (max-width: 640px) {
      .help-hero {
        padding-top: 120px;
        padding-bottom: 40px;
      }
      .help-hero-inner {
        padding: 32px 20px;
      }
      .help-hero-inner h1 {
        font-size: 26px;
        line-height: 1.3;
      }
      .help-hero-inner .hero-desc {
        font-size: 14px;
        line-height: 1.7;
      }
      .help-search-large input {
        height: 46px;
        font-size: 14px;
        padding-left: 44px;
        padding-right: 80px;
      }
      .help-search-large .help-search-btn {
        height: 34px;
        padding: 0 14px;
        font-size: 13px;
      }
      .help-tags {
        gap: 6px;
      }
      .help-tag {
        padding: 5px 14px;
        font-size: 12px;
      }
    }

    /* ---- Section Head ---- */
    .section-head {
      margin-bottom: 40px;
    }
    .section-tag {
      display: inline-block;
      padding: 4px 14px;
      border-radius: 6px;
      background: rgba(69, 183, 255, 0.12);
      color: var(--glow-blue);
      font-size: 12px;
      font-weight: 500;
      letter-spacing: 1px;
      margin-bottom: 12px;
    }
    .section-head h2 {
      font-size: 26px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
      position: relative;
      padding-left: 16px;
    }
    .section-head h2::before {
      content: "";
      position: absolute;
      left: 0;
      top: 50%;
      transform: translateY(-50%);
      width: 4px;
      height: 22px;
      background: var(--glow-blue);
      border-radius: 2px;
      box-shadow: 0 0 12px rgba(69, 183, 255, 0.6);
    }
    .section-head .section-sub {
      font-size: 14px;
      color: var(--text-sub);
      margin-top: 4px;
    }

    @media screen and (max-width: 640px) {
      .section-head h2 {
        font-size: 22px;
      }
      .section-head {
        margin-bottom: 28px;
      }
    }

    /* ---- FAQ Section ---- */
    .faq-section {
      background: var(--bg-deep);
      padding: 80px 0;
      position: relative;
    }
    .faq-section::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent 0%, rgba(69, 183, 255, 0.3) 50%, transparent 100%);
    }

    .faq-grid-row {
      display: flex;
      gap: 24px;
    }
    .faq-col {
      flex: 1;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: var(--glass-bg);
      border: var(--glass-border);
      border-radius: 12px;
      overflow: hidden;
      transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
    }
    .faq-item:hover {
      border-color: rgba(120, 180, 255, 0.28);
      transform: translateY(-2px);
    }
    .faq-item.open {
      border-color: rgba(69, 183, 255, 0.4);
      box-shadow: 0 4px 20px rgba(30, 111, 255, 0.18);
    }

    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 18px 22px;
      cursor: pointer;
      gap: 12px;
      position: relative;
    }
    .faq-question .q-icon {
      width: 24px;
      height: 24px;
      flex-shrink: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      background: rgba(69, 183, 255, 0.1);
      color: var(--glow-blue);
      font-size: 12px;
      font-weight: 700;
    }
    .faq-question .q-text {
      flex: 1;
      font-size: 15px;
      font-weight: 600;
      color: var(--text-main);
      line-height: 1.5;
    }
    .faq-question .q-toggle {
      width: 28px;
      height: 28px;
      flex-shrink: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      border: 1px solid rgba(120, 180, 255, 0.2);
      color: var(--text-sub);
      background: transparent;
      cursor: pointer;
      transition: transform 0.3s ease, background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
    }
    .faq-item.open .q-toggle {
      transform: rotate(45deg);
      background: rgba(69, 183, 255, 0.15);
      border-color: rgba(69, 183, 255, 0.4);
      color: var(--glow-blue);
    }
    .faq-question:hover .q-toggle {
      border-color: rgba(69, 183, 255, 0.5);
      color: var(--glow-blue);
    }
    .faq-question:focus {
      outline: none;
    }
    .faq-question:focus-visible {
      outline: 2px solid rgba(69, 183, 255, 0.5);
      outline-offset: -2px;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      padding: 0 22px;
    }
    .faq-item.open .faq-answer {
      max-height: 300px;
      padding: 0 22px 18px;
    }
    .faq-answer p {
      font-size: 14px;
      line-height: 1.8;
      color: var(--text-sub);
      border-left: 3px solid rgba(69, 183, 255, 0.35);
      padding-left: 14px;
      margin-top: 4px;
    }

    @media screen and (max-width: 768px) {
      .faq-grid-row {
        flex-direction: column;
        gap: 14px;
      }
      .faq-question {
        padding: 16px 16px;
      }
      .faq-answer {
        padding: 0 16px;
      }
      .faq-item.open .faq-answer {
        padding: 0 16px 16px;
      }
      .faq-question .q-text {
        font-size: 14px;
      }
      .faq-answer p {
        font-size: 13px;
      }
    }

    /* ---- Support Guide ---- */
    .support-guide {
      background: var(--bg-page);
      padding: 80px 0;
    }
    .support-guide-inner {
      display: flex;
      align-items: center;
      gap: 48px;
      background: linear-gradient(135deg, rgba(15, 30, 60, 0.5), rgba(8, 18, 38, 0.8));
      border: var(--glass-border);
      border-radius: var(--radius-lg);
      padding: 40px;
      position: relative;
      overflow: hidden;
      box-shadow: var(--shadow-card);
    }
    .support-guide-inner::before {
      content: "";
      position: absolute;
      bottom: -60px;
      left: -40px;
      width: 200px;
      height: 200px;
      border-radius: 50%;
      border: 30px solid rgba(69, 183, 255, 0.06);
      z-index: 0;
    }
    .support-guide-text {
      flex: 1;
      position: relative;
      z-index: 1;
    }
    .support-guide-text h2 {
      font-size: 24px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .support-guide-text p {
      font-size: 15px;
      color: var(--text-sub);
      line-height: 1.8;
      margin-bottom: 20px;
    }
    .support-guide-text .guide-list {
      list-style: none;
      padding: 0;
      margin: 0 0 24px;
    }
    .support-guide-text .guide-list li {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .support-guide-text .guide-list li i {
      color: var(--lime-light);
      font-size: 14px;
    }
    .support-guide-img {
      flex: 0 0 280px;
      position: relative;
      z-index: 1;
    }
    .support-guide-img img {
      border-radius: var(--radius-card);
      box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
      border: 1px solid rgba(120, 180, 255, 0.1);
    }

    @media screen and (max-width: 1024px) {
      .support-guide-inner {
        padding: 28px;
        gap: 24px;
      }
      .support-guide-img {
        flex: 0 0 220px;
      }
    }
    @media screen and (max-width: 768px) {
      .support-guide-inner {
        flex-direction: column;
        padding: 24px;
      }
      .support-guide-img {
        flex: 0 0 auto;
        width: 100%;
        max-width: 360px;
      }
      .support-guide-text h2 {
        font-size: 20px;
      }
    }

    /* ---- Contact Section ---- */
    .contact-section {
      padding: 80px 0;
      background: linear-gradient(180deg, var(--bg-page) 0%, var(--bg-deep) 100%);
      position: relative;
    }
    .contact-section::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent 0%, rgba(69, 183, 255, 0.2) 50%, transparent 100%);
    }

    .contact-grid {
      display: flex;
      gap: 20px;
    }
    .contact-card {
      flex: 1;
      background: var(--glass-bg);
      border: var(--glass-border);
      border-radius: var(--radius-card);
      padding: 32px 24px;
      text-align: center;
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      box-shadow: var(--shadow-card);
      transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
      position: relative;
      overflow: hidden;
    }
    .contact-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 50%;
      transform: translateX(-50%);
      width: 60px;
      height: 2px;
      background: linear-gradient(90deg, transparent, var(--glow-blue), transparent);
      opacity: 0.4;
      transition: opacity 0.3s ease;
    }
    .contact-card:hover {
      transform: translateY(-4px);
      border-color: rgba(69, 183, 255, 0.35);
      box-shadow: 0 16px 44px rgba(0, 0, 0, 0.45);
    }
    .contact-card:hover::before {
      opacity: 1;
    }
    .contact-card:active {
      transform: translateY(-2px);
    }

    .contact-icon {
      width: 56px;
      height: 56px;
      margin: 0 auto 18px;
      border-radius: 14px;
      background: linear-gradient(135deg, rgba(30, 111, 255, 0.25), rgba(69, 183, 255, 0.15));
      border: 1px solid rgba(69, 183, 255, 0.2);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--glow-blue);
      font-size: 22px;
    }
    .contact-card h3 {
      font-size: 18px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .contact-card p {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.7;
      margin-bottom: 4px;
    }
    .contact-card .contact-note {
      font-size: 12px;
      color: var(--text-weak);
      margin-top: 8px;
      padding-top: 10px;
      border-top: 1px dashed rgba(120, 180, 255, 0.12);
    }

    @media screen and (max-width: 768px) {
      .contact-grid {
        flex-direction: column;
        gap: 14px;
      }
      .contact-card {
        padding: 24px 20px;
      }
      .contact-icon {
        width: 48px;
        height: 48px;
      }
    }

    /* ---- CTA Strip ---- */
    .cta-strip {
      padding: 16px 0 0;
      background: var(--bg-deep);
    }
    .cta-strip-inner {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      padding: 20px 24px;
      background: rgba(69, 183, 255, 0.06);
      border: 1px dashed rgba(69, 183, 255, 0.2);
      border-radius: var(--radius-card);
      text-align: center;
      flex-wrap: wrap;
    }
    .cta-strip-inner span {
      font-size: 15px;
      color: var(--text-main);
      font-weight: 500;
    }
    .cta-strip-inner a {
      font-size: 14px;
      color: var(--glow-blue);
      font-weight: 600;
      padding: 8px 24px;
      border-radius: 8px;
      border: 1px solid rgba(69, 183, 255, 0.3);
      background: rgba(69, 183, 255, 0.08);
      transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
    }
    .cta-strip-inner a:hover {
      background: rgba(69, 183, 255, 0.18);
      color: #fff;
      border-color: rgba(69, 183, 255, 0.5);
    }
    .cta-strip-inner a:active {
      background: rgba(69, 183, 255, 0.25);
    }
    @media screen and (max-width: 640px) {
      .cta-strip-inner {
        font-size: 14px;
        padding: 16px;
      }
      .cta-strip-inner a {
        flex: 1;
        text-align: center;
      }
    }

    /* ---- Footer ---- */
    .site-footer {
      background: #040810;
      padding-top: 64px;
      padding-bottom: 24px;
      border-top: 1px solid rgba(120, 180, 255, 0.06);
    }
    .footer-top {
      display: flex;
      gap: 40px;
      margin-bottom: 40px;
      flex-wrap: wrap;
    }
    .footer-brand {
      flex: 1 1 260px;
    }
    .brand-logo.footer-logo {
      display: flex;
      align-items: baseline;
      gap: 4px;
      margin-bottom: 12px;
    }
    .footer-desc {
      font-size: 13px;
      color: var(--text-weak);
      line-height: 1.8;
      max-width: 260px;
    }
    .footer-col {
      flex: 1 1 140px;
    }
    .footer-col h5 {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 16px;
      letter-spacing: 0.5px;
    }
    .footer-col ul {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-col ul li {
      margin-bottom: 10px;
    }
    .footer-col ul li a {
      font-size: 13px;
      color: var(--text-sub);
      transition: color 0.25s ease;
    }
    .footer-col ul li a:hover {
      color: var(--glow-blue);
    }
    .footer-col ul li a:focus {
      outline: 2px solid rgba(69, 183, 255, 0.4);
      outline-offset: 2px;
    }
    .footer-contact-item {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 12px;
    }
    .footer-contact-item i {
      font-size: 14px;
      color: var(--glow-blue);
      width: 16px;
      text-align: center;
    }
    .footer-contact-item span {
      font-size: 13px;
      color: var(--text-sub);
    }
    .footer-divider {
      border: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(69, 183, 255, 0.25), transparent);
      margin: 32px 0 20px;
    }
    .footer-bottom {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
    }
    .footer-bottom span {
      font-size: 12px;
      color: var(--text-weak);
    }

    @media screen and (max-width: 768px) {
      .footer-top {
        flex-direction: column;
        gap: 28px;
      }
      .footer-brand {
        flex: 1 1 100%;
      }
      .footer-col {
        flex: 1 1 40%;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
    }

    /* ---- Section spacing utility ---- */
    .faq-section {
      padding: 80px 0;
    }
    @media screen and (max-width: 640px) {
      .faq-section,
      .support-guide,
      .contact-section {
        padding: 56px 0;
      }
      .section-head h2 {
        font-size: 22px;
        padding-left: 14px;
      }
    }