/* roulang page: index */
:root {
  --bg: #0a192f;
  --bg-2: #0f2840;
  --bg-3: #061324;
  --brand: #c6f53d;
  --aqua: #22d3ee;
  --text: #f2f7f5;
  --text-2: #a5b7c9;
  --text-3: #647b91;
  --danger: #ff6b6b;
  --glass-bg: rgba(255,255,255,0.06);
  --glass-border: rgba(255,255,255,0.12);
  --radius: 18px;
  --shadow: 0 12px 40px rgba(0,0,0,0.35);
  --glow: 0 0 24px rgba(198,245,61,0.4);
}
html { scroll-behavior: smooth; }
body {
  background-color: var(--bg);
  color: var(--text);
  font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  font-variant-numeric: tabular-nums;
}
img { max-width: 100%; }
a { text-decoration: none; color: inherit; }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
  border-radius: 6px;
}
::selection { background: rgba(198,245,61,0.28); color: #fff; }
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg-3); }
::-webkit-scrollbar-thumb { background: #2c4a68; border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: #3e6084; }
[id] { scroll-margin-top: 92px; }

/* ===== Header ===== */
.site-header {
  background: rgba(10,25,47,0.72);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: background .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.site-header.scrolled {
  background: rgba(10,25,47,0.95);
  border-bottom-color: rgba(198,245,61,0.22);
  box-shadow: 0 6px 30px rgba(0,0,0,0.32);
}
.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(198,245,61,0.12);
  border: 1px solid rgba(198,245,61,0.35);
  flex-shrink: 0;
}
.logo-text {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: .02em;
  color: #fff;
  white-space: nowrap;
}
.nav-link {
  position: relative;
  font-size: 15px;
  color: var(--text-2);
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 999px;
  transition: color .25s ease, background .25s ease;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: var(--brand);
  box-shadow: 0 0 10px rgba(198,245,61,0.8);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .25s ease;
}
.nav-link:hover { color: var(--brand); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.active {
  color: var(--brand);
  background: rgba(198,245,61,0.12);
}
.nav-link.active::after { display: none; }
.menu-toggle {
  position: relative;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.16);
  background: rgba(255,255,255,0.04);
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  transition: border-color .25s ease, background .25s ease;
}
.menu-toggle:hover { border-color: rgba(198,245,61,0.5); }
.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform .3s ease, opacity .3s ease;
}
.menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-menu {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  background: rgba(10,25,47,0.98);
  border-bottom: 1px solid rgba(198,245,61,0.15);
  transition: max-height .35s ease, opacity .3s ease, padding .3s ease;
  padding: 0 24px;
}
.mobile-menu.open { max-height: 480px; opacity: 1; padding: 18px 24px 28px; }
.mobile-link {
  display: block;
  padding: 12px 8px;
  border-radius: 10px;
  color: var(--text-2);
  font-size: 16px;
  font-weight: 600;
  transition: color .2s ease, background .2s ease;
}
.mobile-link:hover, .mobile-link.active { color: var(--brand); background: rgba(198,245,61,0.08); }
@media (min-width: 1024px) {
  .mobile-menu { display: none !important; }
}

/* ===== Buttons ===== */
.btn-primary, .btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 700;
  padding: 14px 30px;
  border-radius: 12px;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease, color .25s ease;
}
.btn-primary {
  background: var(--brand);
  color: #0a192f;
  box-shadow: 0 0 24px rgba(198,245,61,0.28);
  border: 1px solid transparent;
}
.btn-primary:hover {
  background: #d4f83f;
  box-shadow: 0 0 36px rgba(198,245,61,0.55);
  transform: translateY(-2px);
}
.btn-primary:active { transform: scale(0.97); }
.btn-ghost {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.3);
}
.btn-ghost:hover {
  background: rgba(198,245,61,0.1);
  border-color: var(--brand);
  color: var(--brand);
  transform: translateY(-2px);
}
.btn-ghost:active { transform: scale(0.97); }
.submit-btn:disabled { opacity: .6; cursor: not-allowed; }

/* ===== Hero ===== */
.hero-bg {
  background-size: cover;
  background-position: center;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(6,19,36,0.92) 0%, rgba(10,25,47,0.82) 45%, rgba(15,40,64,0.72) 100%);
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(198,245,61,0.1);
  border: 1px solid rgba(198,245,61,0.3);
  color: var(--brand);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
}
.hero-title {
  font-size: clamp(42px, 4.6vw, 56px);
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: .01em;
  margin-top: 22px;
  color: #fff;
}
.hero-sub {
  margin-top: 22px;
  max-width: 640px;
  font-size: 17px;
  line-height: 1.85;
  color: var(--text-2);
}
.avatar-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 800;
  border: 2px solid #0a192f;
}
.stats-glass {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 20px;
  padding: 28px 24px;
  box-shadow: var(--shadow);
}
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; text-align: center; }
.stat-num { display: block; font-size: 28px; font-weight: 800; color: var(--brand); line-height: 1.2; }
.stat-num i { font-style: normal; color: var(--aqua); }
.stat-label { display: block; margin-top: 6px; font-size: 13px; color: var(--text-2); }

/* ===== Sections ===== */
.section { padding: 96px 0; }
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--brand);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.section-tag::before {
  content: '';
  width: 18px;
  height: 2px;
  background: var(--brand);
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(198,245,61,0.8);
}
.section-title {
  font-size: clamp(28px, 3.2vw, 38px);
  font-weight: 800;
  color: #fff;
  margin-top: 12px;
  line-height: 1.25;
}
.section-sub {
  color: var(--text-2);
  font-size: 15px;
  margin-top: 12px;
  max-width: 640px;
}

/* ===== News ===== */
.filter-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.filter-tag {
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.04);
  color: var(--text-2);
  font-size: 13px;
  font-weight: 600;
  transition: all .25s ease;
}
.filter-tag:hover, .filter-tag.active {
  border-color: var(--brand);
  color: var(--brand);
  background: rgba(198,245,61,0.1);
}
.news-card {
  background: var(--bg-2);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 12px 32px rgba(0,0,0,0.28);
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
  display: flex;
  flex-direction: column;
}
.news-card:hover {
  transform: translateY(-4px);
  border-color: rgba(198,245,61,0.45);
  box-shadow: 0 18px 44px rgba(0,0,0,0.4);
}
.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px 0;
  gap: 10px;
}
.badge {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(34,211,238,0.12);
  border: 1px solid rgba(34,211,238,0.35);
  color: var(--aqua);
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}
.news-time { font-size: 12px; color: var(--text-3); white-space: nowrap; }
.news-cover-link { display: block; margin: 14px 20px 0; }
.news-cover {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: 12px;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, #16324f, #0f2840);
}
.news-cover img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.news-card:hover .news-cover img { transform: scale(1.04); }
.news-body { padding: 18px 20px 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.news-title { font-size: 18px; font-weight: 700; line-height: 1.5; }
.news-title a { color: #fff; transition: color .2s ease; }
.news-title a:hover { color: var(--brand); }
.news-summary {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.75;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
  font-size: 14px;
  font-weight: 600;
  color: var(--brand);
  transition: gap .25s ease;
}
.news-link:hover { gap: 10px; }
.news-empty {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 72px 24px;
  border: 1px dashed rgba(255,255,255,0.18);
  border-radius: var(--radius);
  color: var(--text-2);
  gap: 12px;
  text-align: center;
}
.news-empty i { font-size: 40px; color: var(--text-3); }

/* ===== Tiers ===== */
.tier-card {
  position: relative;
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.02));
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 20px;
  padding: 36px 30px 30px;
  box-shadow: var(--shadow);
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.tier-card:hover {
  transform: translateY(-6px);
  border-color: rgba(198,245,61,0.45);
}
.tier-card.featured {
  background: linear-gradient(180deg, rgba(198,245,61,0.14), rgba(15,40,64,0.95) 45%);
  border-color: rgba(198,245,61,0.6);
  box-shadow: 0 0 24px rgba(198,245,61,0.16), var(--shadow);
}
.tier-card.featured:hover {
  box-shadow: 0 0 36px rgba(198,245,61,0.28), var(--shadow);
}
.tier-tag {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--brand);
  color: #0a192f;
  font-size: 12px;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: 999px;
  letter-spacing: .04em;
  white-space: nowrap;
}
.tier-name { font-size: 20px; font-weight: 800; color: #fff; }
.tier-note { display: block; margin-top: 6px; font-size: 13px; color: var(--text-2); }
.tier-feature-list { list-style: none; margin: 24px 0 28px; padding: 0; display: grid; gap: 12px; }
.tier-feature-list li { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: var(--text-2); }
.tier-feature-list li i { color: var(--brand); margin-top: 4px; }
.tier-arrow {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: rgba(198,245,61,0.1);
  border: 1px solid rgba(198,245,61,0.35);
  color: var(--brand);
  align-items: center;
  justify-content: center;
  font-size: 18px;
}
@media (max-width: 1023px) {
  .tier-arrow { transform: rotate(90deg); }
}

/* ===== Table ===== */
.table-wrap {
  overflow-x: auto;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.02);
}
.compare-table { width: 100%; border-collapse: collapse; min-width: 720px; }
.compare-table th {
  background: #0d2133;
  color: #f2f7f5;
  padding: 16px 18px;
  text-align: left;
  font-weight: 700;
  font-size: 15px;
}
.compare-table th:not(:first-child) { text-align: center; }
.compare-table td {
  padding: 16px 18px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  color: var(--text-2);
  text-align: center;
  font-size: 14px;
}
.compare-table td:first-child {
  text-align: left;
  color: #f2f7f5;
  font-weight: 600;
}
.compare-table tbody tr:last-child td { border-bottom: none; }
.compare-table tbody tr:hover { background: rgba(255,255,255,0.04); }
.compare-table th.col-hot, .compare-table td.col-hot {
  background: rgba(198,245,61,0.08);
  color: #f2f7f5;
}
.hot-badge {
  display: inline-block;
  background: var(--brand);
  color: #0a192f;
  font-size: 11px;
  font-weight: 800;
  border-radius: 999px;
  padding: 2px 10px;
  margin-left: 6px;
  vertical-align: 2px;
  letter-spacing: .02em;
}
.table-na { color: var(--text-3); }

/* ===== Limited ===== */
.limited-panel {
  position: relative;
  overflow: hidden;
  border-radius: 24px;
  padding: 64px 32px;
  background:
    linear-gradient(160deg, rgba(6,19,36,0.85), rgba(15,40,64,0.9)),
    url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
  border: 1px solid rgba(198,245,61,0.3);
  box-shadow: 0 0 40px rgba(198,245,61,0.1);
}
.countdown {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 26px;
  font-family: 'Inter', system-ui, sans-serif;
}
.countdown span {
  min-width: 76px;
  padding: 14px 10px;
  border-radius: 14px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.14);
  font-size: 40px;
  font-weight: 800;
  color: var(--brand);
  display: inline-block;
  text-align: center;
}
.countdown i { color: var(--text-2); font-style: normal; font-size: 28px; font-weight: 800; }
.limited-note { margin-top: 22px; font-size: 15px; color: var(--text-2); }

/* ===== Form ===== */
.form-panel {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 22px;
  padding: 40px;
  box-shadow: var(--shadow);
}
.form-group { margin-bottom: 20px; }
.form-label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}
.form-label .req { color: var(--brand); margin-left: 2px; }
.form-control {
  width: 100%;
  padding: 14px 16px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 10px;
  color: var(--text);
  font-size: 15px;
  transition: border-color .25s ease, box-shadow .25s ease, background .25s ease;
  outline: none;
  font-family: inherit;
}
.form-control::placeholder { color: var(--text-3); }
.form-control:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(198,245,61,0.18);
  background: rgba(255,255,255,0.08);
}
.form-control.error {
  border-color: var(--danger);
  box-shadow: 0 0 0 3px rgba(255,107,107,0.15);
}
select.form-control {
  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 d='M1 1l5 5 5-5' stroke='%23a5b7c9' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  background-size: 12px;
}
select.form-control option { background: #0f2840; color: #f2f7f5; }
.error-msg { display: none; margin-top: 6px; font-size: 13px; color: var(--danger); }
.error-msg.show { display: block; }
.form-success {
  display: none;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: 10px;
  background: rgba(198,245,61,0.1);
  border: 1px solid rgba(198,245,61,0.4);
  color: var(--brand);
  font-size: 14px;
}
.form-success.show { display: flex; }
.form-privacy { margin-top: 14px; font-size: 13px; color: var(--text-3); }
.contact-card {
  position: relative;
  overflow: hidden;
  border-radius: 22px;
  border: 1px solid rgba(255,255,255,0.12);
  padding: 40px;
  background:
    linear-gradient(160deg, rgba(6,19,36,0.88), rgba(15,40,64,0.92)),
    url('/assets/images/coverpic/cover-4.png') center / cover no-repeat;
  box-shadow: var(--shadow);
}
.contact-card-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: rgba(198,245,61,0.12);
  border: 1px solid rgba(198,245,61,0.3);
  color: var(--brand);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}
.contact-list { list-style: none; margin-top: 24px; padding: 0; display: grid; gap: 16px; }
.contact-list li { display: flex; gap: 12px; align-items: center; color: var(--text-2); font-size: 14px; }
.contact-list li i { width: 20px; text-align: center; color: var(--aqua); }

/* ===== Footer ===== */
.site-footer { background: var(--bg-3); border-top: 1px solid rgba(198,245,61,0.15); }
.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  padding: 64px 0 48px;
}
.footer-title { font-size: 14px; font-weight: 700; color: #fff; margin-bottom: 18px; }
.footer-brand-desc { color: var(--text-3); font-size: 14px; line-height: 1.8; margin-top: 14px; }
.footer-link-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer-link-list li { display: flex; gap: 10px; align-items: center; }
.footer-link-list a { color: var(--text-3); font-size: 14px; transition: color .2s ease, padding-left .2s ease; }
.footer-link-list a:hover { color: var(--brand); padding-left: 4px; }
.footer-link-list i { color: var(--text-3); font-size: 13px; width: 18px; text-align: center; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 22px 0;
  font-size: 13px;
  color: var(--text-3);
  text-align: center;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .section { padding: 72px 0; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .hero-title { font-size: 38px; }
  .footer-grid { grid-template-columns: 1fr; padding: 48px 0 32px; gap: 28px; }
  .form-panel, .contact-card { padding: 28px 22px; }
  .limited-panel { padding: 44px 20px; }
  .countdown span { min-width: 58px; font-size: 30px; padding: 10px 6px; }
}
@media (max-width: 520px) {
  .hero-title { font-size: 34px; }
  .btn-primary, .btn-ghost { width: 100%; padding: 13px 18px; }
  .hero-actions { width: 100%; }
  .section-title { font-size: 26px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* roulang page: category1 */
:root {
            --bg-primary: #0a192f;
            --bg-secondary: #0f2840;
            --accent: #c6f53d;
            --accent-2: #22d3ee;
            --text-primary: #f2f7f5;
            --text-secondary: #a5b7c9;
            --text-muted: #647b91;
            --danger: #ff6b6b;
            --glass-bg: rgba(255, 255, 255, 0.06);
            --glass-border: rgba(255, 255, 255, 0.12);
            --radius: 20px;
            --radius-sm: 12px;
            --shadow-card: 0 12px 40px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 24px rgba(198, 245, 61, 0.4);
        }

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

        html {
            scroll-behavior: smooth;
        }

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

        a {
            color: inherit;
            text-decoration: none;
        }

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

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

        ul {
            list-style: none;
        }

        .site-header {
            background: rgba(10, 25, 47, 0.72);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            transition: background 0.3s, box-shadow 0.3s, border-color 0.3s;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .site-header.scrolled {
            background: rgba(7, 17, 35, 0.93);
            border-bottom-color: rgba(198, 245, 61, 0.15);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
        }

        .logo-mark {
            width: 32px;
            height: 32px;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: #ffffff;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 14px;
            border-radius: 999px;
            transition: color 0.25s, background 0.25s;
            letter-spacing: 0.01em;
        }

        .nav-link:hover {
            color: var(--accent);
            background: rgba(198, 245, 61, 0.08);
        }

        .nav-link.active {
            color: var(--accent);
            background: rgba(198, 245, 61, 0.12);
            font-weight: 600;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--accent);
            color: #0a192f;
            font-weight: 700;
            font-size: 15px;
            padding: 12px 24px;
            border-radius: 12px;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 0 24px rgba(198, 245, 61, 0.35);
            white-space: nowrap;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 36px rgba(198, 245, 61, 0.55);
            filter: brightness(1.08);
        }

        .btn-primary:active {
            transform: scale(0.97);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: #ffffff;
            border: 1px solid rgba(255, 255, 255, 0.3);
            padding: 12px 24px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background: rgba(198, 245, 61, 0.1);
            border-color: var(--accent);
            color: var(--accent);
        }

        .btn-lg {
            padding: 15px 36px;
            font-size: 16px;
        }

        .menu-toggle {
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 42px;
            height: 42px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 10px;
            padding: 10px;
            cursor: pointer;
            transition: background 0.3s;
        }

        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.12);
        }

        .menu-toggle span {
            display: block;
            height: 2px;
            width: 100%;
            background: #fff;
            border-radius: 2px;
            transition: all 0.3s ease;
        }

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

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

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

        .mobile-menu {
            display: none;
            position: absolute;
            top: 72px;
            left: 0;
            right: 0;
            background: rgba(7, 17, 35, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            padding: 20px 24px 28px;
            border-bottom: 1px solid rgba(198, 245, 61, 0.15);
        }

        .mobile-menu.open {
            display: block;
        }

        .mobile-link {
            display: block;
            padding: 14px 8px;
            font-size: 17px;
            color: var(--text-secondary);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: color 0.25s, padding-left 0.25s;
        }

        .mobile-link:hover,
        .mobile-link.active {
            color: var(--accent);
            padding-left: 12px;
        }

        .page-hero {
            position: relative;
            min-height: 600px;
            display: flex;
            align-items: center;
            padding: 140px 0 80px;
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            z-index: 0;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(160deg, rgba(10, 25, 47, 0.94) 0%, rgba(10, 25, 47, 0.78) 48%, rgba(15, 40, 64, 0.62) 100%);
            z-index: 1;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 56px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(198, 245, 61, 0.12);
            border: 1px solid rgba(198, 245, 61, 0.25);
            color: var(--accent);
            font-size: 14px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 999px;
            margin-bottom: 22px;
        }

        .hero-copy h1 {
            font-size: 46px;
            line-height: 1.3;
            font-weight: 800;
            letter-spacing: 0.02em;
            margin-bottom: 20px;
        }

        .hero-copy p {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.9;
            max-width: 540px;
            margin-bottom: 32px;
        }

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

        .hero-card {
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: 24px;
            padding: 12px;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
        }

        .hero-card img {
            border-radius: 16px;
            width: 100%;
            height: 300px;
            object-fit: cover;
        }

        .hero-card-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
            padding: 20px 12px 12px;
        }

        .hero-card-stats div {
            text-align: center;
            color: var(--text-secondary);
            font-size: 13px;
        }

        .hero-card-stats span {
            display: block;
            font-size: 24px;
            font-weight: 800;
            color: var(--accent);
            font-variant-numeric: tabular-nums;
            margin-bottom: 2px;
        }

        .section {
            padding: 96px 0;
        }

        .value-section {
            background: var(--bg-secondary);
        }

        .section-head {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 52px;
        }

        .section-head h2 {
            font-size: 32px;
            font-weight: 800;
            letter-spacing: 0.02em;
            margin-bottom: 12px;
        }

        .section-head p {
            color: var(--text-secondary);
            font-size: 16px;
        }

        .value-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 36px 30px;
            transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
        }

        .value-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
            border-color: rgba(198, 245, 61, 0.3);
        }

        .value-card i {
            font-size: 28px;
            color: var(--accent);
            display: inline-block;
            width: 56px;
            height: 56px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(198, 245, 61, 0.1);
            border-radius: 14px;
            margin-bottom: 20px;
        }

        .value-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .value-card p {
            color: var(--text-secondary);
            font-size: 14.5px;
            line-height: 1.8;
        }

        .split-section {
            background: var(--bg-primary);
        }

        .split-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
        }

        .split-image img {
            border-radius: 20px;
            width: 100%;
            height: 420px;
            object-fit: cover;
            box-shadow: 0 20px 64px rgba(0, 0, 0, 0.5);
        }

        .split-content h2 {
            font-size: 30px;
            font-weight: 800;
            line-height: 1.4;
            margin-bottom: 18px;
        }

        .split-content>p {
            color: var(--text-secondary);
            font-size: 16px;
            line-height: 1.85;
            margin-bottom: 22px;
        }

        .split-content ul {
            margin-bottom: 26px;
        }

        .split-content ul li {
            position: relative;
            padding-left: 24px;
            color: var(--text-primary);
            font-size: 15px;
            margin-bottom: 12px;
        }

        .split-content ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 10px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 12px rgba(198, 245, 61, 0.6);
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent);
            font-weight: 600;
            font-size: 15px;
            transition: gap 0.3s;
        }

        .text-link:hover {
            gap: 14px;
        }

        .process-section {
            background: var(--bg-secondary);
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }

        .process-step {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 18px;
            padding: 30px 22px;
            text-align: center;
            position: relative;
            transition: all 0.3s ease;
        }

        .process-step:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(198, 245, 61, 0.25);
            transform: translateY(-4px);
        }

        .process-step::after {
            content: '';
            position: absolute;
            top: 50%;
            right: -20px;
            width: 20px;
            height: 2px;
            background: linear-gradient(90deg, var(--accent), transparent);
            transform: translateY(-50%);
        }

        .process-step:last-child::after {
            display: none;
        }

        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: rgba(198, 245, 61, 0.12);
            color: var(--accent);
            font-size: 15px;
            font-weight: 800;
            margin-bottom: 16px;
            font-variant-numeric: tabular-nums;
        }

        .process-step h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
        }

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

        .scenario-section {
            background: var(--bg-primary);
        }

        .scenario-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 18px;
            padding: 32px 24px;
            transition: all 0.3s ease;
        }

        .scenario-card:hover {
            border-color: rgba(34, 211, 238, 0.4);
            box-shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
            transform: translateY(-4px);
        }

        .scenario-card i {
            font-size: 26px;
            color: var(--accent-2);
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(34, 211, 238, 0.1);
            border-radius: 12px;
            margin-bottom: 18px;
        }

        .scenario-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .scenario-card p {
            color: var(--text-secondary);
            font-size: 13.5px;
            line-height: 1.7;
        }

        .faq-section {
            background: var(--bg-secondary);
        }

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: rgba(255, 255, 255, 0.045);
            border: 1px solid rgba(255, 255, 255, 0.09);
            border-radius: 14px;
            margin-bottom: 14px;
            overflow: hidden;
            transition: background 0.3s, border-color 0.3s;
        }

        .faq-item.active {
            background: rgba(255, 255, 255, 0.07);
            border-color: rgba(198, 245, 61, 0.25);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 20px;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            text-align: left;
            transition: color 0.25s;
        }

        .faq-question:hover {
            color: var(--accent);
        }

        .faq-q-icon {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(198, 245, 61, 0.14);
            color: var(--accent);
            border-radius: 8px;
            font-size: 13px;
            font-weight: 800;
        }

        .faq-icon {
            margin-left: auto;
            transition: transform 0.3s ease;
            color: var(--accent);
            font-size: 14px;
            flex-shrink: 0;
        }

        .faq-item.active .faq-icon {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            padding: 0 20px;
            color: var(--text-secondary);
        }

        .faq-item.active .faq-answer {
            max-height: 220px;
            padding-bottom: 20px;
        }

        .faq-answer p {
            font-size: 14.5px;
            line-height: 1.8;
            border-left: 2px solid rgba(198, 245, 61, 0.4);
            padding-left: 16px;
        }

        .cta-section {
            padding: 90px 0;
            background: var(--bg-primary);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 720px;
            height: 720px;
            background: radial-gradient(circle, rgba(198, 245, 61, 0.12) 0%, rgba(34, 211, 238, 0.05) 40%, transparent 70%);
            pointer-events: none;
        }

        .cta-panel {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.14);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: 24px;
            padding: 52px 56px;
            box-shadow: 0 24px 64px rgba(0, 0, 0, 0.4);
        }

        .cta-copy h2 {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .cta-copy p {
            color: var(--text-secondary);
            font-size: 15px;
            max-width: 520px;
        }

        .cta-actions {
            display: flex;
            flex-direction: column;
            gap: 16px;
            align-items: flex-start;
            flex-shrink: 0;
        }

        .cta-phone {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 600;
            transition: color 0.25s;
            font-variant-numeric: tabular-nums;
        }

        .cta-phone:hover {
            color: var(--accent);
        }

        .site-footer {
            background: #061324;
            border-top: 1px solid rgba(198, 245, 61, 0.15);
            padding: 64px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.2fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 18px;
        }

        .footer-brand-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-top: 16px;
        }

        .footer-link-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            color: var(--text-secondary);
            font-size: 14px;
        }

        .footer-link-list a {
            transition: color 0.25s;
        }

        .footer-link-list a:hover {
            color: var(--accent);
        }

        .footer-link-list i {
            width: 20px;
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 22px 0;
            text-align: center;
            color: var(--text-muted);
            font-size: 13px;
        }

        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .hero-copy {
                text-align: center;
            }

            .hero-copy p {
                margin-left: auto;
                margin-right: auto;
            }

            .hero-actions {
                justify-content: center;
            }

            .hero-card {
                max-width: 520px;
                margin: 0 auto;
            }

            .split-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .split-content {
                text-align: center;
            }

            .split-content ul li {
                padding-left: 0;
            }

            .split-content ul li::before {
                display: none;
            }

            .process-steps {
                grid-template-columns: repeat(3, 1fr);
            }

            .process-step::after {
                display: none;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 64px 0;
            }

            .page-hero {
                padding: 100px 0 60px;
                min-height: auto;
            }

            .hero-copy h1 {
                font-size: 34px;
            }

            .hero-card img {
                height: 220px;
            }

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

            .process-steps {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .cta-panel {
                flex-direction: column;
                padding: 36px 28px;
                text-align: center;
            }

            .cta-actions {
                align-items: center;
            }

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

            .mobile-menu {
                max-height: calc(100vh - 72px);
                overflow-y: auto;
            }
        }

        @media (max-width: 520px) {
            .hero-copy h1 {
                font-size: 28px;
            }

            .hero-copy p {
                font-size: 15px;
            }

            .hero-actions {
                flex-direction: column;
            }

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

            .value-card {
                padding: 26px 22px;
            }

            .split-image img {
                height: 260px;
            }

            .cta-panel {
                padding: 28px 20px;
            }
        }

/* roulang page: article */
:root {
  --bg-deep: #0a192f;
  --bg-navy: #0f2840;
  --bg-darker: #061324;
  --accent: #c6f53d;
  --accent-2: #22d3ee;
  --text-light: #f2f7f5;
  --text-grey: #a5b7c9;
  --text-muted: #647b91;
  --glass-bg: rgba(255, 255, 255, 0.06);
  --glass-border: rgba(255, 255, 255, 0.12);
  --radius-lg: 20px;
  --radius-md: 12px;
  --shadow-card: 0 12px 40px rgba(0, 0, 0, 0.35);
  --shadow-lime: 0 0 24px rgba(198, 245, 61, 0.4);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  padding: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Inter", system-ui, sans-serif;
  background: var(--bg-deep);
  color: var(--text-light);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10, 25, 47, 0.72);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: background 0.4s ease, box-shadow 0.4s ease;
}
.site-header.scrolled {
  background: rgba(10, 25, 47, 0.94);
  box-shadow: 0 1px 0 rgba(198, 245, 61, 0.14), 0 12px 40px rgba(0, 0, 0, 0.35);
}
.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.logo-text {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--text-light);
}
.nav-link {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-grey);
  padding: 8px 16px;
  border-radius: 999px;
  background: transparent;
  transition: color 0.25s ease, background 0.25s ease;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
  box-shadow: 0 0 12px rgba(198, 245, 61, 0.7);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}
.nav-link:hover {
  color: var(--accent);
  background: rgba(198, 245, 61, 0.06);
}
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.active {
  color: var(--accent);
  background: rgba(198, 245, 61, 0.12);
}
.nav-link.active::after { transform: scaleX(1); }

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  background: var(--accent);
  color: var(--bg-deep);
  font-size: 16px;
  font-weight: 600;
  line-height: 1;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lime);
  border: 1px solid rgba(198, 245, 61, 0.6);
  transition: all 0.3s ease;
}
.btn-primary:hover {
  background: #d9ff52;
  box-shadow: 0 0 36px rgba(198, 245, 61, 0.6);
  transform: translateY(-1px);
}
.btn-primary:active { transform: scale(0.97); }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-light);
  font-size: 16px;
  font-weight: 500;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.3);
  transition: all 0.3s ease;
}
.btn-secondary:hover {
  background: rgba(198, 245, 61, 0.1);
  border-color: var(--accent);
  color: var(--accent);
}
.btn-secondary:active { transform: scale(0.97); }

.menu-toggle {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  transition: all 0.3s ease;
}
.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-light);
  border-radius: 2px;
  transition: all 0.3s ease;
}
.menu-toggle:hover { border-color: var(--accent); }
.menu-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
  background: var(--accent);
}
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
  background: var(--accent);
}

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: 20px 24px 28px;
  background: rgba(10, 25, 47, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(198, 245, 61, 0.15);
}
.mobile-menu.open { display: flex; }
.mobile-link {
  padding: 14px 16px;
  font-size: 16px;
  color: var(--text-grey);
  border-radius: var(--radius-md);
  transition: all 0.3s ease;
}
.mobile-link:hover,
.mobile-link.active {
  background: rgba(198, 245, 61, 0.1);
  color: var(--accent);
  padding-left: 20px;
}

/* ===== Article Banner ===== */
.article-banner {
  position: relative;
  margin-top: 72px;
  padding: 96px 0 64px;
  background-size: cover;
  background-position: center;
  border-bottom: 1px solid rgba(198, 245, 61, 0.12);
}
.article-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(10, 25, 47, 0.97) 20%, rgba(15, 40, 64, 0.82) 60%, rgba(10, 25, 47, 0.72) 100%);
}
.banner-inner {
  position: relative;
  z-index: 2;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 28px;
}
.breadcrumb a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-grey);
  transition: color 0.25s;
}
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb-sep { color: rgba(255, 255, 255, 0.25); }
.breadcrumb .current { color: var(--accent); }
.breadcrumb-title {
  color: var(--text-grey);
  max-width: 260px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.banner-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: rgba(198, 245, 61, 0.12);
  border: 1px solid rgba(198, 245, 61, 0.3);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  border-radius: 999px;
  margin-bottom: 16px;
}
.article-title {
  font-size: 40px;
  line-height: 1.35;
  font-weight: 800;
  color: var(--text-light);
  letter-spacing: 0.01em;
  max-width: 900px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 24px;
  font-size: 14px;
  color: var(--text-grey);
}
.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.article-meta i { color: var(--accent); font-size: 13px; }

/* ===== Article Section ===== */
.article-section {
  padding: 56px 0 80px;
}
.article-card {
  background: rgba(15, 40, 64, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  padding: 44px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
}
.category-guide {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 36px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: rgba(198, 245, 61, 0.12);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  border-radius: 999px;
  border: 1px solid rgba(198, 245, 61, 0.25);
}
.guide-title {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-grey);
}
.article-cover {
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: 32px;
  box-shadow: var(--shadow-card);
}
.article-cover img {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  display: block;
}

/* ===== Article Body ===== */
.article-body {
  font-size: 17px;
  line-height: 1.9;
  color: #c8d3df;
}
.article-body > *:first-child { margin-top: 0; }
.article-body h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-light);
  margin: 40px 0 16px;
}
.article-body h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-light);
  margin: 32px 0 12px;
}
.article-body h4 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-light);
  margin: 28px 0 10px;
}
.article-body p { margin: 0 0 20px; }
.article-body strong { color: var(--text-light); font-weight: 600; }
.article-body a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: rgba(198, 245, 61, 0.35);
  text-underline-offset: 4px;
  transition: text-decoration-color 0.3s;
}
.article-body a:hover { text-decoration-color: var(--accent); }
.article-body ul,
.article-body ol { margin: 0 0 24px; padding: 0; }
.article-body ul li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 10px;
  list-style: none;
}
.article-body ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 2px;
  transform: rotate(45deg);
}
.article-body ol { counter-reset: li; }
.article-body ol li {
  position: relative;
  padding-left: 36px;
  margin-bottom: 10px;
  list-style: none;
  counter-increment: li;
}
.article-body ol li::before {
  content: counter(li);
  position: absolute;
  left: 0;
  top: 2px;
  width: 24px;
  height: 24px;
  border-radius: 8px;
  background: rgba(198, 245, 61, 0.15);
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.article-body blockquote {
  border-left: 4px solid var(--accent);
  background: rgba(198, 245, 61, 0.07);
  padding: 16px 24px;
  border-radius: 0 12px 12px 0;
  margin: 28px 0;
  color: var(--text-grey);
}
.article-body img {
  border-radius: 12px;
  margin: 28px 0;
  box-shadow: var(--shadow-card);
}
.article-body figure { margin: 28px 0; }
.article-body figure img { margin: 0; }
.article-body figcaption {
  font-size: 14px;
  color: var(--text-muted);
  text-align: center;
  margin-top: 10px;
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0;
  font-size: 15px;
}
.article-body th {
  background: rgba(10, 25, 47, 0.5);
  color: var(--text-light);
  font-weight: 600;
  text-align: left;
  padding: 12px 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}
.article-body td {
  padding: 12px 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-grey);
}
.article-body hr {
  border: 0;
  height: 1px;
  background: rgba(255, 255, 255, 0.1);
  margin: 32px 0;
}
.article-body code {
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 0.9em;
  color: var(--accent);
}

/* ===== Article Tags ===== */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: rgba(198, 245, 61, 0.08);
  color: var(--accent);
  font-size: 13px;
  border-radius: 999px;
  border: 1px solid rgba(198, 245, 61, 0.25);
  transition: all 0.3s ease;
}
.tag:hover {
  background: rgba(198, 245, 61, 0.16);
  border-color: var(--accent);
  box-shadow: 0 0 14px rgba(198, 245, 61, 0.2);
}

/* ===== Article Empty ===== */
.article-empty {
  text-align: center;
  padding: 48px 0 24px;
}
.empty-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  border-radius: 20px;
  background: rgba(198, 245, 61, 0.1);
  border: 1px solid rgba(198, 245, 61, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: var(--accent);
}
.article-empty h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-light);
  margin: 0 0 24px;
}

/* ===== Related Section ===== */
.related-section {
  padding: 72px 0 88px;
  background: rgba(15, 40, 64, 0.35);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.section-head { margin-bottom: 40px; }
.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}
.section-title {
  font-size: 30px;
  font-weight: 800;
  color: var(--text-light);
}
.news-card {
  display: flex;
  flex-direction: column;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 18px;
  overflow: hidden;
  height: 100%;
  transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}
.news-card:hover {
  transform: translateY(-4px);
  border-color: rgba(198, 245, 61, 0.45);
  box-shadow: var(--shadow-card);
}
.news-card-image {
  display: block;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  position: relative;
}
.news-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.news-card:hover .news-card-image img { transform: scale(1.05); }
.news-card-content {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.news-card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.news-card-title {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 10px;
}
.news-card-title a { color: var(--text-light); transition: color 0.3s; }
.news-card-title a:hover { color: var(--accent); }
.news-card-excerpt {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-grey);
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card-link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  transition: gap 0.3s ease;
}
.news-card-link:hover {
  gap: 10px;
  color: #d9ff52;
}

/* ===== CTA ===== */
.cta-section {
  padding: 80px 0;
  background: radial-gradient(ellipse 70% 90% at 50% 100%, rgba(198, 245, 61, 0.1), transparent 72%), var(--bg-deep);
}
.cta-panel {
  position: relative;
  text-align: center;
  padding: 56px 40px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  overflow: hidden;
}
.cta-panel::before {
  content: '';
  position: absolute;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: rgba(198, 245, 61, 0.16);
  filter: blur(90px);
  top: -140px;
  left: 50%;
  transform: translateX(-50%);
  pointer-events: none;
}
.cta-panel h2 {
  position: relative;
  font-size: 32px;
  font-weight: 800;
  color: var(--text-light);
  margin: 0 0 14px;
}
.cta-panel p {
  position: relative;
  font-size: 16px;
  color: var(--text-grey);
  margin: 0 0 28px;
}
.cta-panel .btn-primary { position: relative; }

/* ===== Footer ===== */
.site-footer {
  background: #061324;
  border-top: 1px solid rgba(198, 245, 61, 0.15);
  padding-top: 64px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1fr 1.1fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand-desc {
  margin-top: 20px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-muted);
  max-width: 320px;
}
.footer-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-light);
  margin-bottom: 20px;
}
.footer-link-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer-link-list li {
  margin-bottom: 12px;
  font-size: 14px;
  color: var(--text-grey);
}
.footer-link-list a { color: var(--text-grey); transition: color 0.3s; }
.footer-link-list a:hover { color: var(--accent); }
.footer-link-list i {
  color: var(--accent);
  margin-right: 8px;
  width: 16px;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
  font-size: 13px;
  color: var(--text-muted);
  text-align: center;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .article-title { font-size: 34px; }
}
@media (max-width: 768px) {
  .article-banner { padding: 72px 0 40px; }
  .article-title { font-size: 28px; }
  .article-card { padding: 28px 22px; }
  .article-section { padding: 40px 0 56px; }
  .related-section { padding: 56px 0 64px; }
  .cta-section { padding: 56px 0; }
  .cta-panel { padding: 36px 24px; }
  .cta-panel h2 { font-size: 26px; }
  .article-meta { gap: 14px; }
}
@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
}

/* roulang page: category2 */
:root {
  --primary: #c6f53d;
  --secondary: #22d3ee;
  --bg-main: #0a192f;
  --bg-deep: #061324;
  --bg-card: #0f2840;
  --text-main: #f2f7f5;
  --text-secondary: #a5b7c9;
  --text-muted: #647b91;
  --danger: #ff6b6b;
  --glass-bg: rgba(255,255,255,0.06);
  --glass-border: rgba(255,255,255,0.12);
  --radius-card: 18px;
  --radius-btn: 12px;
  --radius-badge: 999px;
  --shadow-card: 0 12px 40px rgba(0,0,0,0.35);
  --shadow-glow: 0 0 24px rgba(198,245,61,0.4);
  --shadow-glow-hover: 0 0 36px rgba(198,245,61,0.55);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
  background: #0a192f;
  color: #f2f7f5;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }
input, select, textarea { font-family: inherit; font-size: inherit; }
.container-custom { max-width: 1200px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }
::selection { background: rgba(198,245,61,0.25); color: #fff; }

/* ================= 导航 ================= */
.site-header {
  background: rgba(10,25,47,0.72);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.site-header.scrolled {
  background: rgba(6,19,36,0.92);
  border-bottom-color: rgba(198,245,61,0.15);
  box-shadow: 0 1px 0 rgba(198,245,61,0.08), 0 10px 40px rgba(0,0,0,0.45);
}
.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(198,245,61,0.1);
  border: 1px solid rgba(198,245,61,0.2);
  box-shadow: 0 0 16px rgba(198,245,61,0.15);
}
.logo-text {
  font-size: 20px;
  font-weight: 800;
  color: #f2f7f5;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: #a5b7c9;
  padding: 8px 14px;
  border-radius: 999px;
  position: relative;
  transition: color 0.25s ease, background 0.25s ease;
  letter-spacing: 0.02em;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 2px;
  width: 0;
  height: 2px;
  background: #c6f53d;
  border-radius: 2px;
  transform: translateX(-50%);
  transition: width 0.3s ease;
  box-shadow: 0 0 12px rgba(198,245,61,0.5);
}
.nav-link:hover { color: #c6f53d; }
.nav-link:hover::after { width: 60%; }
.nav-link.active {
  color: #c6f53d;
  background: rgba(198,245,61,0.12);
}
.nav-link.active::after { display: none; }
.menu-toggle {
  display: inline-flex;
  flex-direction: column;
  gap: 5px;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 10px;
  transition: all 0.3s ease;
}
.menu-toggle span { width: 18px; height: 2px; background: #f2f7f5; border-radius: 2px; transition: transform 0.3s ease, opacity 0.3s ease; }
.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: 16px 24px 24px;
  background: rgba(6,19,36,0.98);
  border-top: 1px solid rgba(198,245,61,0.1);
}
.mobile-menu.open { display: flex; }
.mobile-link {
  padding: 14px 16px;
  border-radius: 10px;
  color: #f2f7f5;
  font-size: 16px;
  font-weight: 500;
  transition: all 0.25s ease;
}
.mobile-link:hover { background: rgba(198,245,61,0.08); color: #c6f53d; }
.mobile-link.active { background: rgba(198,245,61,0.12); color: #c6f53d; }

/* ================= 按钮 ================= */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: #c6f53d;
  color: #0a192f;
  font-weight: 700;
  font-size: 15px;
  padding: 14px 28px;
  border-radius: 12px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 0 24px rgba(198,245,61,0.4);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.btn-primary:hover { background: #d4ff4f; box-shadow: 0 0 36px rgba(198,245,61,0.55); transform: translateY(-2px); }
.btn-primary:active { transform: scale(0.97); }
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: rgba(255,255,255,0.06);
  color: #f2f7f5;
  font-weight: 600;
  font-size: 15px;
  padding: 13px 28px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.3);
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
  backdrop-filter: blur(8px);
}
.btn-secondary:hover { background: rgba(198,245,61,0.1); border-color: #c6f53d; color: #c6f53d; }
.btn-secondary:active { transform: scale(0.97); }

/* ================= 徽章 ================= */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(198,245,61,0.12);
  color: #c6f53d;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  border: 1px solid rgba(198,245,61,0.25);
  letter-spacing: 0.04em;
}

/* ================= Hero ================= */
.page-hero {
  position: relative;
  padding: 140px 0 90px;
  overflow: hidden;
}
.page-hero .hero-bg {
  position: absolute;
  inset: 0;
  background-position: center;
  background-size: cover;
  z-index: 0;
}
.page-hero .hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(10,25,47,0.92) 0%, rgba(10,25,47,0.78) 40%, rgba(15,40,64,0.55) 100%);
  z-index: 1;
}
.hero-content { position: relative; z-index: 2; }
.hero-title {
  font-size: clamp(32px, 4.5vw, 48px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: 0.02em;
  margin: 20px 0 20px;
  color: #f2f7f5;
}
.hero-title .highlight { color: #c6f53d; }
.hero-desc {
  font-size: 16px;
  color: #a5b7c9;
  line-height: 1.85;
  max-width: 640px;
  margin-bottom: 32px;
}
.hero-meta {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  margin-top: 36px;
}
.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #a5b7c9;
  font-size: 14px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  padding: 8px 18px;
  border-radius: 999px;
}
.hero-meta-item i { color: #c6f53d; }

/* ================= 统计条 ================= */
.stats-strip {
  background: rgba(255,255,255,0.04);
  border-top: 1px solid rgba(255,255,255,0.08);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  backdrop-filter: blur(12px);
}
.stats-strip .stat-item { text-align: center; padding: 32px 16px; position: relative; }
.stat-item .stat-num {
  font-size: 36px;
  font-weight: 800;
  color: #c6f53d;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  line-height: 1.1;
}
.stat-item .stat-label { font-size: 14px; color: #a5b7c9; margin-top: 8px; }
@media (min-width: 769px) {
  .stats-strip .stat-item + .stat-item { border-left: 1px solid rgba(255,255,255,0.08); }
}

/* ================= 通用板块标题 ================= */
.section-block { padding: 90px 0; }
.section-tag { display: inline-block; font-size: 13px; font-weight: 600; color: #c6f53d; letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 12px; }
.section-title {
  font-size: clamp(26px, 3.2vw, 34px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: 0.02em;
  color: #f2f7f5;
  margin-bottom: 18px;
}
.section-subtitle { font-size: 15px; color: #a5b7c9; line-height: 1.8; max-width: 600px; }

/* ================= 价值卡片 ================= */
.value-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 18px;
  padding: 36px 28px;
  transition: all 0.3s ease;
  height: 100%;
}
.value-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.5), 0 0 0 1px rgba(198,245,61,0.2);
  border-color: rgba(198,245,61,0.3);
}
.value-card .card-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: rgba(198,245,61,0.1);
  border: 1px solid rgba(198,245,61,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  color: #c6f53d;
  margin-bottom: 22px;
  transition: all 0.3s ease;
}
.value-card:hover .card-icon { background: rgba(198,245,61,0.18); box-shadow: 0 0 24px rgba(198,245,61,0.2); }
.value-card h3 { font-size: 20px; font-weight: 700; color: #f2f7f5; margin-bottom: 12px; }
.value-card p { font-size: 15px; color: #a5b7c9; line-height: 1.75; }

/* ================= 双栏图文 ================= */
.dual-section { background: #0f2840; }
.dual-image-block {
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.45);
}
.dual-image-block img { width: 100%; height: 100%; object-fit: cover; min-height: 360px; transition: transform 0.5s ease; }
.dual-image-block:hover img { transform: scale(1.03); }
.dual-image-block::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,25,47,0.5) 0%, transparent 60%);
}
.dual-image-caption {
  position: absolute;
  left: 20px;
  bottom: 20px;
  z-index: 2;
  background: rgba(6,19,36,0.72);
  padding: 10px 18px;
  border-radius: 10px;
  font-size: 13px;
  color: #c6f53d;
  border: 1px solid rgba(198,245,61,0.2);
  backdrop-filter: blur(10px);
}
.check-list { display: flex; flex-direction: column; gap: 18px; margin-top: 24px; }
.check-list li { display: flex; gap: 14px; font-size: 15px; color: #a5b7c9; line-height: 1.8; }
.check-list li::before {
  content: "";
  flex-shrink: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #c6f53d;
  margin-top: 9px;
  box-shadow: 0 0 10px rgba(198,245,61,0.5);
}
.dual-point-title { font-size: 17px; font-weight: 700; color: #f2f7f5; }

/* ================= 通栏背景带 ================= */
.band-section { position: relative; padding: 90px 0; overflow: hidden; }
.band-section .band-bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.band-section .band-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(10,25,47,0.92) 0%, rgba(10,25,47,0.82) 50%, rgba(6,19,36,0.94) 100%); }
.band-content { position: relative; z-index: 2; }
.band-card {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: 18px;
  padding: 32px 26px;
  transition: all 0.3s ease;
  height: 100%;
}
.band-card:hover { transform: translateY(-4px); border-color: rgba(198,245,61,0.35); box-shadow: 0 16px 44px rgba(0,0,0,0.45); }
.band-card .band-icon { width: 48px; height: 48px; border-radius: 12px; background: rgba(34,211,238,0.12); border: 1px solid rgba(34,211,238,0.25); display: flex; align-items: center; justify-content: center; font-size: 20px; color: #22d3ee; margin-bottom: 18px; }
.band-card h3 { font-size: 19px; font-weight: 700; color: #f2f7f5; margin-bottom: 10px; }
.band-card p { font-size: 14px; color: #a5b7c9; line-height: 1.75; }

/* ================= 流程步骤 ================= */
.process-step {
  position: relative;
  text-align: center;
  padding: 32px 22px 28px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 18px;
  transition: all 0.3s ease;
  height: 100%;
}
.process-step:hover { transform: translateY(-4px); border-color: rgba(198,245,61,0.35); box-shadow: 0 12px 40px rgba(0,0,0,0.35); }
.process-step .step-num {
  width: 42px;
  height: 42px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(198,245,61,0.12);
  border: 1px solid rgba(198,245,61,0.3);
  border-radius: 50%;
  font-size: 16px;
  font-weight: 800;
  color: #c6f53d;
  box-shadow: 0 0 16px rgba(198,245,61,0.15);
}
.process-step h3 { font-size: 17px; font-weight: 700; color: #f2f7f5; margin-bottom: 10px; }
.process-step p { font-size: 14px; color: #a5b7c9; line-height: 1.7; }
.step-arrow { position: absolute; right: -18px; top: 50%; transform: translateY(-50%); color: rgba(198,245,61,0.6); font-size: 20px; z-index: 3; }
@media (max-width: 1024px) { .step-arrow { display: none; } }

/* ================= FAQ ================= */
.faq-section { background: #0f2840; }
.faq-item {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 14px;
  overflow: hidden;
  transition: background 0.3s ease, border-color 0.3s ease;
  margin-bottom: 14px;
}
.faq-item.active { background: rgba(255,255,255,0.08); border-color: rgba(198,245,61,0.25); }
.faq-question {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 22px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: #f2f7f5;
  transition: color 0.25s ease;
}
.faq-question:hover { color: #c6f53d; }
.faq-q-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  border-radius: 8px;
  background: rgba(198,245,61,0.12);
  border: 1px solid rgba(198,245,61,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 800;
  color: #c6f53d;
}
.faq-arrow {
  margin-left: auto;
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  color: #a5b7c9;
  transition: transform 0.3s ease, color 0.3s ease;
}
.faq-item.active .faq-arrow { transform: rotate(180deg); color: #c6f53d; }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 22px 0 64px;
  color: #a5b7c9;
  font-size: 15px;
  line-height: 1.8;
}
.faq-item.active .faq-answer { max-height: 500px; padding-bottom: 22px; }

/* ================= CTA ================= */
.cta-section {
  position: relative;
  padding: 90px 0 110px;
  text-align: center;
  overflow: hidden;
}
.cta-section .cta-bg { position: absolute; inset: 0; background: radial-gradient(ellipse at center, rgba(198,245,61,0.12) 0%, transparent 60%); }
.cta-inner { position: relative; z-index: 2; }
.cta-title { font-size: clamp(26px, 3.2vw, 36px); font-weight: 800; line-height: 1.3; letter-spacing: 0.02em; color: #f2f7f5; margin-bottom: 16px; }
.cta-desc { font-size: 15px; color: #a5b7c9; max-width: 560px; margin: 0 auto 30px; line-height: 1.8; }

/* ================= 页脚 ================= */
.site-footer { background: #061324; border-top: 1px solid rgba(198,245,61,0.15); padding: 64px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 0.8fr 1fr 1fr; gap: 48px; padding-bottom: 44px; border-bottom: 1px solid rgba(255,255,255,0.06); }
.footer-brand-desc { color: #a5b7c9; font-size: 14px; line-height: 1.8; margin-top: 16px; max-width: 300px; }
.footer-title { color: #f2f7f5; font-size: 16px; font-weight: 700; margin-bottom: 18px; letter-spacing: 0.02em; }
.footer-link-list { display: flex; flex-direction: column; gap: 12px; }
.footer-link-list a { color: #a5b7c9; font-size: 14px; transition: color 0.25s ease; }
.footer-link-list a:hover { color: #c6f53d; }
.footer-link-list li { color: #a5b7c9; font-size: 14px; display: flex; align-items: center; gap: 10px; }
.footer-link-list li i { color: #c6f53d; width: 16px; flex-shrink: 0; }
.footer-bottom { padding-top: 28px; text-align: center; color: #647b91; font-size: 13px; letter-spacing: 0.02em; }

/* ================= 响应式 ================= */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .section-block { padding: 72px 0; }
  .band-section { padding: 72px 0; }
}
@media (max-width: 768px) {
  .page-hero { padding: 110px 0 64px; }
  .section-block { padding: 56px 0; }
  .band-section { padding: 56px 0; }
  .cta-section { padding: 64px 0 80px; }
  .hero-title { font-size: 32px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-brand-desc { max-width: 100%; }
  .hero-meta { gap: 12px; }
  .hero-meta-item { width: 100%; }
  .stats-strip .stat-item { padding: 20px 12px; }
  .stat-item .stat-num { font-size: 28px; }
  .btn-primary, .btn-secondary { width: 100%; }
  .dual-image-block img { min-height: 260px; }
}
@media (max-width: 520px) {
  .container-custom { padding-left: 18px; padding-right: 18px; }
  .hero-title { font-size: 28px; }
  .section-title { font-size: 24px; }
  .faq-question { font-size: 15px; padding: 16px 18px; }
  .faq-answer { padding: 0 18px 0 52px; }
}

/* roulang page: category3 */
:root {
            --bg-deep: #0a192f;
            --bg-alt: #0f2840;
            --bg-footer: #061324;
            --primary: #c6f53d;
            --accent: #22d3ee;
            --text-main: #f2f7f5;
            --text-sub: #a5b7c9;
            --text-muted: #647b91;
            --danger: #ff6b6b;
            --glass-bg: rgba(255, 255, 255, 0.06);
            --glass-border: rgba(255, 255, 255, 0.12);
            --radius-card: 18px;
            --radius-btn: 12px;
            --shadow-card: 0 12px 40px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 24px rgba(198, 245, 61, 0.4);
            --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            --font-num: "Inter", system-ui, "PingFang SC", sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-main);
            background: var(--bg-deep);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        input,
        select,
        textarea {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            background: rgba(10, 25, 51, 0.72);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid transparent;
            transition: background 0.3s, box-shadow 0.3s, border-color 0.3s;
        }
        .site-header.scrolled {
            background: rgba(10, 25, 51, 0.92);
            border-bottom-color: rgba(198, 245, 61, 0.12);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
        }
        .logo-mark {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: #ffffff;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .nav-link {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-sub);
            padding: 10px 14px;
            border-radius: 999px;
            transition: color 0.25s, background 0.25s;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 4px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
            box-shadow: 0 0 12px var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.25s ease;
        }
        .nav-link:hover {
            color: var(--primary);
            background: rgba(198, 245, 61, 0.08);
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            transform: scaleX(1);
        }
        .nav-link.active {
            color: var(--primary);
            background: rgba(198, 245, 61, 0.12);
            box-shadow: inset 0 0 0 1px rgba(198, 245, 61, 0.25);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #0a192f;
            font-size: 15px;
            font-weight: 600;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            box-shadow: var(--shadow-glow);
            transition: all 0.25s;
            cursor: pointer;
        }
        .btn-primary:hover {
            background: #d8ff5c;
            box-shadow: 0 0 36px rgba(198, 245, 61, 0.55);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: scale(0.97);
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: #ffffff;
            font-size: 15px;
            font-weight: 500;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(255, 255, 255, 0.3);
            transition: all 0.25s;
            cursor: pointer;
        }
        .btn-ghost:hover {
            background: rgba(198, 245, 61, 0.1);
            border-color: var(--primary);
            color: var(--primary);
        }
        .menu-toggle {
            display: flex;
            flex-direction: column;
            gap: 5px;
            padding: 10px;
            border-radius: 8px;
        }
        .menu-toggle span {
            width: 22px;
            height: 2px;
            background: #ffffff;
            border-radius: 2px;
            transition: all 0.3s;
        }
        .menu-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .menu-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            padding: 16px 24px 24px;
            background: rgba(10, 25, 51, 0.97);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-link {
            display: block;
            padding: 12px;
            color: var(--text-sub);
            font-size: 16px;
            border-radius: 10px;
            transition: color 0.2s, background 0.2s;
        }
        .mobile-link:hover {
            color: var(--primary);
            background: rgba(198, 245, 61, 0.08);
        }
        .mobile-link.active {
            color: var(--primary);
            background: rgba(198, 245, 61, 0.12);
        }
        .page-hero {
            position: relative;
            padding: 140px 0 100px;
            background-size: cover;
            background-position: center;
            isolation: isolate;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            z-index: -1;
            background: linear-gradient(160deg, rgba(10, 25, 51, 0.94) 30%, rgba(15, 40, 64, 0.75) 75%, rgba(34, 211, 238, 0.18));
        }
        .hero-inner {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(198, 245, 61, 0.12);
            border: 1px solid rgba(198, 245, 61, 0.3);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 20px;
        }
        .page-hero h1 {
            font-size: 44px;
            line-height: 1.25;
            font-weight: 800;
            letter-spacing: 0.02em;
            margin-bottom: 20px;
        }
        .hero-desc {
            font-size: 17px;
            color: var(--text-sub);
            max-width: 560px;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .hero-side {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: 20px;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            padding: 36px 32px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px 20px;
        }
        .hero-stat strong {
            display: block;
            font-size: 32px;
            font-weight: 800;
            color: var(--accent);
            font-family: var(--font-num);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }
        .hero-stat span {
            font-size: 13px;
            color: var(--text-muted);
            display: block;
            margin-top: 4px;
        }
        .section {
            padding: 90px 0;
        }
        .section-head {
            margin-bottom: 52px;
            max-width: 680px;
        }
        .section-head.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }
        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(198, 245, 61, 0.1);
            border: 1px solid rgba(198, 245, 61, 0.2);
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 14px;
            letter-spacing: 0.05em;
        }
        .section-head h2 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: 0.02em;
        }
        .section-head p {
            color: var(--text-sub);
            font-size: 16px;
            margin-top: 12px;
        }
        .feature-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-card);
            padding: 40px 32px;
            position: relative;
            overflow: hidden;
            transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            opacity: 0;
            transition: opacity 0.3s;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
            border-color: rgba(198, 245, 61, 0.3);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(198, 245, 61, 0.1);
            color: var(--primary);
            font-size: 22px;
            margin-bottom: 22px;
        }
        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .feature-card p {
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.8;
        }
        .split-section {
            background: var(--bg-alt);
        }
        .split-media img {
            border-radius: 20px;
            box-shadow: var(--shadow-card);
            width: 100%;
            object-fit: cover;
            aspect-ratio: 4 / 3;
        }
        .split-content h2 {
            font-size: 30px;
            font-weight: 800;
            letter-spacing: 0.02em;
            margin-bottom: 16px;
        }
        .split-content p {
            color: var(--text-sub);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .point-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .point-list li {
            position: relative;
            padding-left: 22px;
            font-size: 15px;
            color: var(--text-main);
        }
        .point-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 9px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 10px rgba(198, 245, 61, 0.6);
        }
        .step-item {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            transition: transform 0.3s, border-color 0.3s;
        }
        .step-item:hover {
            transform: translateY(-4px);
            border-color: rgba(34, 211, 238, 0.3);
        }
        .step-num {
            font-size: 42px;
            font-weight: 800;
            color: transparent;
            -webkit-text-stroke: 1.5px var(--accent);
            font-family: var(--font-num);
            line-height: 1;
            display: block;
            margin-bottom: 18px;
            font-variant-numeric: tabular-nums;
        }
        .step-item h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .step-item p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
        }
        .scene-section {
            background: var(--bg-alt);
        }
        .scene-card {
            background: #0f1d33;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
        }
        .scene-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
            border-color: rgba(198, 245, 61, 0.25);
        }
        .scene-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .scene-body {
            padding: 24px 24px 28px;
        }
        .scene-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .scene-body p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
        }
        .stat-band {
            background: linear-gradient(135deg, rgba(15, 40, 64, 0.6), rgba(10, 25, 51, 0.9));
            padding: 64px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .stat-item {
            text-align: center;
            padding: 24px;
        }
        .stat-item strong {
            display: block;
            font-size: 44px;
            font-weight: 800;
            color: var(--primary);
            font-family: var(--font-num);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }
        .stat-item strong em {
            font-style: normal;
            color: var(--accent);
            font-size: 24px;
            margin-left: 2px;
        }
        .stat-item span {
            color: var(--text-muted);
            font-size: 14px;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 14px;
            overflow: hidden;
            transition: background 0.3s, border-color 0.3s;
        }
        .faq-item.open {
            background: rgba(255, 255, 255, 0.07);
            border-color: rgba(198, 245, 61, 0.2);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 20px 22px;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            transition: color 0.2s;
        }
        .faq-q-icon {
            width: 26px;
            height: 26px;
            border-radius: 8px;
            flex-shrink: 0;
            background: rgba(198, 245, 61, 0.15);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 800;
        }
        .faq-question i {
            margin-left: auto;
            color: var(--text-muted);
            transition: transform 0.3s, color 0.3s;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 600px;
            padding: 0 22px 22px 62px;
        }
        .faq-answer p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.8;
        }
        .cta-band {
            position: relative;
            padding: 80px 0;
            background-size: cover;
            background-position: center;
            isolation: isolate;
        }
        .cta-overlay {
            position: absolute;
            inset: 0;
            z-index: -1;
            background: linear-gradient(160deg, rgba(10, 25, 51, 0.9), rgba(15, 40, 64, 0.8));
        }
        .cta-band h2 {
            font-size: 30px;
            font-weight: 800;
            letter-spacing: 0.02em;
            margin-bottom: 12px;
        }
        .cta-band p {
            color: var(--text-sub);
            font-size: 16px;
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .contact-section {
            background: linear-gradient(160deg, var(--bg-deep), var(--bg-alt));
        }
        .contact-intro h2 {
            font-size: 30px;
            font-weight: 800;
            letter-spacing: 0.02em;
            margin-bottom: 16px;
        }
        .contact-intro p {
            color: var(--text-sub);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 28px;
        }
        .contact-info {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .contact-info li {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--text-main);
            font-size: 15px;
        }
        .contact-info i {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(198, 245, 61, 0.1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            flex-shrink: 0;
        }
        .contact-form {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--glass-border);
            border-radius: 20px;
            padding: 36px;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
            margin-bottom: 18px;
        }
        .form-group label {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-main);
        }
        .required {
            color: var(--danger);
        }
        .form-input {
            width: 100%;
            padding: 14px 16px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--text-main);
            font-size: 15px;
            transition: border-color 0.25s, box-shadow 0.25s, background 0.25s;
        }
        .form-input::placeholder {
            color: var(--text-muted);
        }
        .form-input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(198, 245, 61, 0.15);
            background: rgba(255, 255, 255, 0.08);
        }
        .form-input.input-error {
            border-color: var(--danger);
            box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.12);
        }
        select.form-input {
            appearance: none;
            -webkit-appearance: none;
            padding-right: 44px;
            cursor: pointer;
            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='%23a5b7c9' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 16px center;
        }
        .form-tip {
            font-size: 13px;
            color: var(--text-muted);
            text-align: center;
            margin-top: 14px;
        }
        .form-success {
            text-align: center;
            padding: 48px 20px;
        }
        .form-success i {
            font-size: 48px;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .form-success h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .form-success p {
            color: var(--text-sub);
            font-size: 15px;
        }
        .site-footer {
            background: var(--bg-footer);
            border-top: 1px solid rgba(198, 245, 61, 0.15);
            padding-top: 72px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1.2fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand-desc {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.8;
            margin-top: 18px;
            max-width: 280px;
        }
        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 20px;
        }
        .footer-link-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-link-list li {
            color: var(--text-sub);
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-link-list a {
            color: var(--text-sub);
            transition: color 0.2s;
        }
        .footer-link-list a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            padding: 24px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-muted);
            font-size: 13px;
        }
        @media (max-width: 1024px) {
            .page-hero h1 {
                font-size: 36px;
            }
            .hero-inner {
                grid-template-columns: 1fr;
            }
            .hero-side {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 64px 0;
            }
            .section-head h2 {
                font-size: 26px;
            }
            .page-hero {
                padding: 100px 0 72px;
            }
            .page-hero h1 {
                font-size: 30px;
            }
            .hero-actions {
                flex-direction: column;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-ghost {
                width: 100%;
            }
            .contact-form {
                padding: 24px;
            }
            .cta-band h2 {
                font-size: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 26px;
            }
            .hero-side {
                padding: 24px;
                grid-template-columns: 1fr 1fr;
            }
            .stat-item strong {
                font-size: 36px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .faq-item.open .faq-answer {
                padding: 0 18px 18px 18px;
            }
        }