/* roulang page: index */
:root {
  --bg-base: oklch(11% 0.012 235);
  --bg-surface: oklch(17% 0.016 235);
  --bg-raised: oklch(22% 0.018 235);
  --accent-cyan: oklch(72% 0.19 196);
  --accent-amber: oklch(70% 0.21 58);
  --border-subtle: oklch(28% 0.014 235);
  --text-primary: oklch(94% 0.006 235);
  --text-muted: oklch(58% 0.010 235);
  --danger: oklch(62% 0.22 25);
  --success: oklch(66% 0.18 155);
  --radius-card: 8px;
  --radius-btn: 6px;
  --radius-badge: 4px;
  --shadow-float: 0 4px 24px oklch(0% 0 0 / 0.45);
}

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

html { scroll-behavior: smooth; }

body {
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  overflow-x: hidden;
}

a { color: var(--accent-cyan); text-decoration: none; transition: color 150ms ease; }
a:hover { color: var(--accent-amber); }
img { max-width: 100%; display: block; }
button, input, select, textarea { font-family: inherit; }

/* Stage glow */
.stage-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background: radial-gradient(ellipse 70% 60% at 50% 30%, oklch(22% 0.06 196 / 0.35) 0%, transparent 70%);
}

/* Container */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ── NAVBAR ── */
.site-nav {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: backdrop-filter 200ms ease, background 200ms ease;
}
.site-nav.scrolled {
  backdrop-filter: blur(12px);
  background: oklch(17% 0.016 235 / 0.85);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 16px;
}
.nav-left, .nav-right {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}
.nav-right { justify-content: flex-end; }
.nav-logo {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--accent-cyan);
  letter-spacing: -0.02em;
  white-space: nowrap;
  flex-shrink: 0;
}
.nav-logo:hover { color: var(--accent-cyan); opacity: 0.85; }
.nav-link {
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 6px 12px;
  border-radius: var(--radius-btn);
  transition: color 150ms ease, background 150ms ease;
  white-space: nowrap;
  position: relative;
}
.nav-link:hover { color: var(--text-primary); background: var(--bg-raised); }
.nav-link.active { color: var(--accent-cyan); }
.nav-badge {
  position: absolute;
  top: 2px;
  right: 2px;
  background: var(--accent-amber);
  color: var(--bg-base);
  font-size: 0.6rem;
  font-weight: 700;
  padding: 1px 4px;
  border-radius: 3px;
  letter-spacing: 0.04em;
}
.btn-nav-cta {
  background: var(--accent-amber);
  color: var(--bg-base);
  font-size: 0.88rem;
  font-weight: 700;
  padding: 8px 18px;
  border-radius: var(--radius-btn);
  border: none;
  cursor: pointer;
  transition: filter 150ms ease, transform 100ms ease;
  white-space: nowrap;
  box-shadow: var(--shadow-float);
}
.btn-nav-cta:hover { filter: brightness(1.1); color: var(--bg-base); }
.btn-nav-cta:active { transform: scale(0.97); }
.btn-nav-cta:focus-visible { outline: 2px solid var(--accent-amber); outline-offset: 2px; }

/* Hamburger */
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  padding: 6px 10px;
  border-radius: var(--radius-btn);
  cursor: pointer;
  font-size: 1.1rem;
}
.nav-mobile-menu {
  display: none;
  background: var(--bg-raised);
  border-top: 1px solid var(--border-subtle);
  padding: 8px 0;
}
.nav-mobile-menu.open { display: block; }
.nav-mobile-menu a {
  display: block;
  color: var(--text-muted);
  padding: 12px 24px;
  font-size: 0.95rem;
  line-height: 48px;
  border-bottom: 1px solid var(--border-subtle);
  transition: color 150ms ease, background 150ms ease;
}
.nav-mobile-menu a:last-child { border-bottom: none; }
.nav-mobile-menu a:hover { color: var(--text-primary); background: var(--bg-surface); }

/* ── BUTTONS ── */
.btn-primary-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-amber);
  color: var(--bg-base);
  font-weight: 700;
  font-size: 1rem;
  padding: 14px 28px;
  border-radius: var(--radius-btn);
  border: none;
  cursor: pointer;
  transition: filter 150ms ease, transform 100ms ease;
  min-height: 44px;
  box-shadow: var(--shadow-float);
  text-decoration: none;
}
.btn-primary-cta:hover { filter: brightness(1.1); color: var(--bg-base); }
.btn-primary-cta:active { transform: scale(0.97); }
.btn-primary-cta:focus-visible { outline: 2px solid var(--accent-amber); outline-offset: 2px; }

.btn-secondary-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--accent-cyan);
  font-weight: 700;
  font-size: 1rem;
  padding: 13px 28px;
  border-radius: var(--radius-btn);
  border: 1.5px solid var(--accent-cyan);
  cursor: pointer;
  transition: background 150ms ease, color 150ms ease;
  min-height: 44px;
  text-decoration: none;
}
.btn-secondary-cta:hover { background: oklch(72% 0.19 196 / 0.12); color: var(--accent-cyan); }
.btn-secondary-cta:active { transform: scale(0.97); }
.btn-secondary-cta:focus-visible { outline: 2px solid var(--accent-cyan); outline-offset: 2px; }

.btn-disabled { opacity: 0.4; cursor: not-allowed; pointer-events: none; }

/* ── STATUS BADGES ── */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: var(--radius-badge);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}
.status-ok {
  background: oklch(66% 0.18 155 / 0.18);
  color: var(--success);
}
.status-ok::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
  animation: pulse 1.8s ease-in-out infinite;
}
.status-warn {
  background: oklch(62% 0.22 25 / 0.15);
  color: var(--danger);
}
.status-warn::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--danger);
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}
@media (prefers-reduced-motion: reduce) {
  .status-ok::before { animation: none; }
}

/* ── CARDS ── */
.card-dark {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  padding: 24px;
  transition: border-color 150ms ease;
}
.card-dark:hover { border-color: var(--accent-cyan); }

/* ── SECTION SPACING ── */
section { position: relative; z-index: 1; }
.section-pad { padding: 80px 0; }
.section-pad-sm { padding: 56px 0; }
.section-title {
  font-size: clamp(1.3rem, 3vw, 1.9rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.section-sub {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 560px;
  margin-bottom: 48px;
}

/* ── HERO ── */
.hero {
  min-height: 560px;
  display: flex;
  align-items: center;
  padding: 80px 0 64px;
  overflow: hidden;
  position: relative;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, oklch(22% 0.06 196 / 0.18) 0%, transparent 60%);
  pointer-events: none;
}
.hero-scan {
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, oklch(72% 0.19 196 / 0.06), transparent);
  animation: scan 6s linear infinite;
  pointer-events: none;
}
@keyframes scan {
  0% { left: -60%; }
  100% { left: 110%; }
}
@media (prefers-reduced-motion: reduce) {
  .hero-scan { animation: none; }
}
.hero-content { animation: fadeInUp 400ms ease-out both; }
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--text-primary);
}
.hero h1 span { color: var(--accent-cyan); }
.hero-sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 480px;
  margin-bottom: 32px;
  line-height: 1.7;
}
.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; }

/* Route matrix */
.route-matrix {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.route-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  padding: 16px;
  transition: border-color 150ms ease;
}
.route-card:hover { border-color: var(--accent-cyan); }
.route-card-name {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.route-latency {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--accent-cyan);
  line-height: 1;
  margin-bottom: 6px;
}
.route-latency span { font-size: 0.7rem; font-weight: 400; color: var(--text-muted); }

/* ── PRICING TIERS ── */
.tier-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  padding: 32px 24px;
  transition: border-color 150ms ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.tier-card:hover { border-color: var(--accent-cyan); }
.tier-card.featured {
  border-color: var(--accent-cyan);
  transform: translateY(-8px);
  position: relative;
}
.tier-top-bar {
  height: 4px;
  background: var(--accent-cyan);
  border-radius: 4px 4px 0 0;
  margin: -32px -24px 24px;
}
.tier-name {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.tier-price {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-amber);
  margin-bottom: 4px;
}
.tier-price small { font-size: 0.9rem; font-weight: 400; color: var(--text-muted); }
.tier-desc { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 20px; }
.tier-features { list-style: none; margin-bottom: 24px; flex: 1; }
.tier-features li {
  padding: 6px 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 8px;
}
.tier-features li:last-child { border-bottom: none; }
.tier-features li i { color: var(--success); font-size: 0.8rem; }
.badge-recommend {
  background: var(--accent-cyan);
  color: var(--bg-base);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-badge);
  letter-spacing: 0.05em;
  margin-left: 8px;
}

/* ── COMPARISON TABLE ── */
.compare-wrap { overflow-x: auto; }
.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 600px;
}
.compare-table th {
  background: var(--bg-raised);
  color: var(--text-primary);
  font-weight: 700;
  padding: 14px 20px;
  text-align: center;
  border-bottom: 2px solid var(--border-subtle);
  font-size: 0.95rem;
}
.compare-table th:first-child { text-align: left; }
.compare-table td {
  padding: 12px 20px;
  text-align: center;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: 0.9rem;
}
.compare-table td:first-child { text-align: left; color: var(--text-primary); font-weight: 500; }
.compare-table tr:hover td { background: oklch(17% 0.016 235 / 0.5); }
.icon-check { color: var(--success); }
.icon-cross { color: var(--danger); }

/* ── PLATFORM GUARANTEE ── */
.guarantee-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.guarantee-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  padding: 24px 16px;
  text-align: center;
  transition: border-color 150ms ease;
}
.guarantee-item:hover { border-color: var(--accent-cyan); }
.guarantee-icon {
  font-size: 2rem;
  color: var(--accent-cyan);
  margin-bottom: 12px;
}
.guarantee-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.guarantee-desc { font-size: 0.82rem; color: var(--text-muted); }

/* ── COUNTDOWN / LIMITED ── */
.limited-section {
  background: var(--bg-raised);
  position: relative;
  overflow: hidden;
}
.limited-section::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 50%;
  height: 200%;
  background: oklch(70% 0.21 58 / 0.07);
  clip-path: polygon(20% 0%, 100% 0%, 80% 100%, 0% 100%);
  pointer-events: none;
}
.countdown-wrap {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.countdown-unit {
  background: var(--bg-base);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  padding: 12px 20px;
  text-align: center;
  min-width: 72px;
}
.countdown-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-amber);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.countdown-label { font-size: 0.72rem; color: var(--text-muted); margin-top: 4px; }
.countdown-sep { font-size: 1.8rem; font-weight: 800; color: var(--accent-amber); }
.limited-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-limited {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--accent-amber);
  color: var(--bg-base);
  font-weight: 700;
  font-size: 1rem;
  padding: 0 32px;
  height: 52px;
  min-width: 200px;
  border-radius: var(--radius-btn);
  border: none;
  cursor: pointer;
  transition: filter 150ms ease, transform 100ms ease;
  box-shadow: var(--shadow-float);
  text-decoration: none;
}
.btn-limited:hover { filter: brightness(1.1); color: var(--bg-base); }
.btn-limited:active { transform: scale(0.97); }

/* ── CHANGELOG ── */
.changelog-list { list-style: none; }
.changelog-item {
  display: flex;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-subtle);
}
.changelog-item:last-child { border-bottom: none; }
.changelog-ver {
  flex-shrink: 0;
  background: var(--bg-raised);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-badge);
  padding: 4px 10px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent-cyan);
  height: fit-content;
  white-space: nowrap;
}
.changelog-title { font-weight: 700; color: var(--text-primary); font-size: 0.95rem; margin-bottom: 4px; }
.changelog-desc { color: var(--text-muted); font-size: 0.88rem; }

/* ── NEWS LIST ── */
.news-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 32px; }
.news-list { list-style: none; }
.news-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border-subtle);
}
.news-list li:last-child { border-bottom: none; }
.news-list a { color: var(--text-primary); font-size: 0.95rem; transition: color 150ms ease; }
.news-list a:hover { color: var(--accent-cyan); }
.news-date { color: var(--text-muted); font-size: 0.8rem; white-space: nowrap; }
.news-side {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  padding: 24px;
}
.news-side h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 16px; }
.news-side ul { list-style: none; }
.news-side li { padding: 10px 0; border-bottom: 1px solid var(--border-subtle); font-size: 0.88rem; }
.news-side li:last-child { border-bottom: none; }
.news-side li a { color: var(--text-muted); }
.news-side li a:hover { color: var(--accent-cyan); }
.news-side li i { color: var(--accent-cyan); margin-right: 8px; font-size: 0.75rem; }

/* ── FAQ ── */
.faq-accordion .accordion-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card) !important;
  margin-bottom: 12px;
  overflow: hidden;
}
.faq-accordion .accordion-button {
  background: var(--bg-surface);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 18px 24px;
  box-shadow: none;
}
.faq-accordion .accordion-button:not(.collapsed) {
  background: var(--bg-raised);
  color: var(--accent-cyan);
}
.faq-accordion .accordion-button:focus { box-shadow: 0 0 0 2px oklch(72% 0.19 196 / 0.4); }
.faq-accordion .accordion-button::after {
  filter: invert(1) brightness(1.5);
  transition: transform 200ms ease;
}
.faq-accordion .accordion-body {
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 18px 24px;
  border-top: 1px solid var(--border-subtle);
}

/* ── FORM ── */
.consult-form {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  padding: 32px;
  max-width: 640px;
  margin: 0 auto;
}
.consult-form label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.consult-form .form-control,
.consult-form .form-select {
  background: var(--bg-base);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  border-radius: var(--radius-btn);
  padding: 10px 14px;
  font-size: 0.92rem;
  margin-bottom: 20px;
  transition: border-color 150ms ease;
}
.consult-form .form-control:focus,
.consult-form .form-select:focus {
  background: var(--bg-base);
  color: var(--text-primary);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 2px oklch(72% 0.19 196 / 0.25);
}
.consult-form .form-control::placeholder { color: var(--text-muted); }
.form-hint { font-size: 0.78rem; color: var(--text-muted); margin-top: -14px; margin-bottom: 18px; }
.btn-form-submit {
  width: 100%;
  background: var(--accent-amber);
  color: var(--bg-base);
  font-weight: 700;
  font-size: 1rem;
  padding: 14px;
  border-radius: var(--radius-btn);
  border: none;
  cursor: pointer;
  transition: filter 150ms ease, transform 100ms ease;
  min-height: 44px;
}
.btn-form-submit:hover { filter: brightness(1.1); }
.btn-form-submit:active { transform: scale(0.97); }
.btn-form-submit:focus-visible { outline: 2px solid var(--accent-amber); outline-offset: 2px; }

/* ── FOOTER ── */
.site-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  padding: 56px 0 24px;
  position: relative;
  z-index: 1;
}
.footer-logo {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--accent-cyan);
  margin-bottom: 12px;
}
.footer-desc { color: var(--text-muted); font-size: 0.88rem; max-width: 320px; }
.footer-title { font-size: 0.95rem; font-weight: 700; color: var(--text-primary); margin-bottom: 16px; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: var(--text-muted); font-size: 0.88rem; }
.footer-links a:hover { color: var(--accent-cyan); }
.footer-contact { color: var(--text-muted); font-size: 0.88rem; }
.footer-contact i { color: var(--accent-cyan); margin-right: 8px; }
.footer-copy {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
}

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .guarantee-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 991px) {
  .news-grid { grid-template-columns: 1fr; }
  .tier-card.featured { transform: none; }
  .hero { min-height: auto; padding: 56px 0 48px; }
}
@media (max-width: 767px) {
  .nav-left, .nav-right { display: none; }
  .nav-toggle { display: block; }
  .nav-inner { justify-content: space-between; }
  .route-matrix {
    grid-template-columns: none;
    grid-auto-flow: column;
    grid-auto-columns: minmax(150px, 1fr);
    overflow-x: auto;
    padding-bottom: 8px;
  }
  .section-pad { padding: 56px 0; }
  .limited-btns .btn-limited { width: 100%; }
  .countdown-unit { min-width: 60px; padding: 10px 14px; }
  .countdown-num { font-size: 1.5rem; }
}
@media (max-width: 520px) {
  .guarantee-grid { grid-template-columns: 1fr; }
  .hero-ctas { flex-direction: column; }
  .hero-ctas .btn-primary-cta, .hero-ctas .btn-secondary-cta { justify-content: center; }
  .changelog-item { flex-direction: column; gap: 8px; }
  .consult-form { padding: 24px 18px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* roulang page: category1 */
:root{
  --bg-base: oklch(11% 0.012 235);
  --bg-surface: oklch(17% 0.016 235);
  --bg-raised: oklch(22% 0.018 235);
  --accent-cyan: oklch(72% 0.19 196);
  --accent-amber: oklch(70% 0.21 58);
  --border-subtle: oklch(28% 0.014 235);
  --text-primary: oklch(94% 0.006 235);
  --text-muted: oklch(58% 0.010 235);
  --danger: oklch(62% 0.22 25);
  --success: oklch(66% 0.18 155);
  --radius-card: 8px;
  --radius-btn: 6px;
  --radius-badge: 4px;
}
*,*::before,*::after{box-sizing:border-box}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text-primary);
  font-family:'PingFang SC','Microsoft YaHei','Noto Sans SC',system-ui,sans-serif;
  line-height:1.7;
  font-size:1rem;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent-cyan);text-decoration:none;transition:color 150ms ease}
a:hover{color:var(--text-primary)}
img{max-width:100%;display:block}
.stage-glow{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background:radial-gradient(ellipse 60% 45% at 50% 0%, oklch(22% 0.06 196 / 0.35), transparent 70%);
}
.page-wrap{position:relative;z-index:1}
h1,h2,h3{margin:0 0 .5em}
h1{font-size:clamp(2rem,5vw,3.2rem);font-weight:800;letter-spacing:-0.02em;line-height:1.25}
h2{font-size:clamp(1.3rem,3vw,1.9rem);font-weight:700}
h3{font-size:1.1rem;font-weight:600}
p{max-width:65ch}
/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--bg-surface);
  border-bottom:1px solid var(--border-subtle);
  transition:background 200ms ease;
}
.site-header.scrolled{background:oklch(17% 0.016 235 / 0.82);backdrop-filter:blur(12px)}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  min-height:64px;gap:16px;
}
.nav-left,.nav-right{display:flex;align-items:center;gap:8px;flex:1}
.nav-right{justify-content:flex-end}
.nav-logo{
  font-weight:800;font-size:1.15rem;letter-spacing:-0.01em;
  color:var(--accent-cyan);white-space:nowrap;
}
.nav-logo:hover{color:var(--accent-cyan);filter:brightness(1.15)}
.nav-link{
  position:relative;color:var(--text-muted);font-weight:600;font-size:.95rem;
  padding:8px 14px;border-radius:var(--radius-btn);transition:color 150ms ease,background 150ms ease;
}
.nav-link:hover{color:var(--text-primary);background:oklch(72% 0.19 196 / 0.08)}
.nav-link.active{color:var(--accent-cyan)}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--accent-cyan);border-radius:2px;
}
.nav-badge{
  position:relative;top:-8px;margin-left:2px;
  background:var(--accent-amber);color:var(--bg-base);
  font-size:.62rem;font-weight:700;letter-spacing:.05em;
  padding:1px 5px;border-radius:var(--radius-badge);
}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--accent-amber);color:var(--bg-base);
  font-weight:700;font-size:.9rem;
  min-height:44px;padding:0 20px;border-radius:var(--radius-btn);
  border:none;transition:filter 150ms ease,transform 100ms ease;
  box-shadow:0 4px 24px oklch(0% 0 0 / 0.45);white-space:nowrap;
}
.nav-cta:hover{filter:brightness(1.1);color:var(--bg-base)}
.nav-cta:active{transform:scale(0.97)}
.nav-toggle{
  display:none;background:none;border:1.5px solid var(--border-subtle);
  color:var(--text-primary);border-radius:var(--radius-btn);
  width:44px;height:44px;font-size:1.1rem;
}
@media (max-width:991.98px){
  .nav-inner{flex-wrap:wrap}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;order:3}
  .nav-logo{order:2;flex:1;text-align:center}
  .nav-left,.nav-right{display:none;width:100%;flex-direction:column;align-items:stretch;gap:0}
  .nav-open .nav-left,.nav-open .nav-right{display:flex;background:var(--bg-raised);border-radius:var(--radius-card);margin:6px 0;padding:8px}
  .nav-open .nav-link{line-height:48px;padding:0 16px}
  .nav-open .nav-link.active::after{display:none}
  .nav-open .nav-cta{margin:8px 16px 12px}
  .nav-left{order:4}.nav-right{order:5}
}
/* ---------- 页内 Hero ---------- */
.cat-hero{
  min-height:320px;display:flex;align-items:center;
  padding:56px 0 48px;
  background:linear-gradient(180deg, oklch(14% 0.02 235), var(--bg-base));
  border-bottom:1px solid var(--border-subtle);
  position:relative;overflow:hidden;
}
.cat-hero::before{
  content:"";position:absolute;top:0;left:-40%;width:40%;height:100%;
  background:linear-gradient(105deg, transparent, oklch(72% 0.19 196 / 0.06), transparent);
  animation:sweep 6s linear infinite;pointer-events:none;
}
@keyframes sweep{from{left:-40%}to{left:120%}}
.hero-copy{animation:fadeInUp 400ms ease-out both}
@keyframes fadeInUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.hero-kicker{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--accent-cyan);font-size:.78rem;font-weight:700;letter-spacing:.08em;
  border:1px solid oklch(72% 0.19 196 / 0.4);border-radius:var(--radius-badge);
  padding:3px 10px;margin-bottom:16px;
}
.hero-sub{color:var(--text-muted);font-size:1.08rem;margin-bottom:24px}
.line-status-card{
  background:var(--bg-surface);border:1px solid var(--border-subtle);
  border-radius:var(--radius-card);padding:24px;text-align:center;
  transition:border-color 150ms ease;
}
.line-status-card:hover{border-color:var(--accent-cyan)}
.line-status-card .line-name{font-size:1.15rem;font-weight:700;margin-bottom:10px}
.latency-num{font-size:2.6rem;font-weight:800;color:var(--accent-cyan);letter-spacing:-0.02em;line-height:1.1}
.latency-unit{font-size:.85rem;color:var(--text-muted);font-weight:600}
.status-badge{
  display:inline-flex;align-items:center;gap:4px;
  padding:2px 8px;border-radius:var(--radius-badge);
  font-size:.72rem;font-weight:700;letter-spacing:.05em;
}
.status-ok{background:oklch(66% 0.18 155 / 0.18);color:var(--success)}
.status-ok .dot{width:6px;height:6px;border-radius:50%;background:var(--success);animation:pulse 1.6s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.status-warn{background:oklch(62% 0.22 25 / 0.15);color:var(--danger)}
/* ---------- 按钮 ---------- */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--accent-amber);color:var(--bg-base);
  font-weight:700;min-height:48px;padding:0 28px;
  border-radius:var(--radius-btn);border:none;
  box-shadow:0 4px 24px oklch(0% 0 0 / 0.45);
  transition:filter 150ms ease,transform 100ms ease;
}
.btn-main:hover{filter:brightness(1.1);color:var(--bg-base)}
.btn-main:active{transform:scale(0.97)}
.btn-main:focus-visible{outline:2px solid var(--accent-amber);outline-offset:2px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--accent-cyan);
  border:1.5px solid var(--accent-cyan);font-weight:700;
  min-height:48px;padding:0 26px;border-radius:var(--radius-btn);
  transition:background 150ms ease;
}
.btn-ghost:hover{background:oklch(72% 0.19 196 / 0.12);color:var(--accent-cyan)}
.btn-ghost:focus-visible{outline:2px solid var(--accent-cyan);outline-offset:2px}
/* ---------- 板块通用 ---------- */
.section{padding:72px 0}
.section-alt{background:var(--bg-surface)}
.section-head{margin-bottom:40px}
.section-head .tagline{color:var(--accent-cyan);font-size:.8rem;font-weight:700;letter-spacing:.08em;margin-bottom:8px}
.section-head p{color:var(--text-muted)}
/* ---------- 特性卡 ---------- */
.feature-card{
  background:var(--bg-surface);border:1px solid var(--border-subtle);
  border-radius:var(--radius-card);padding:24px;height:100%;
  transition:border-color 150ms ease;
}
.section-alt .feature-card{background:var(--bg-raised)}
.feature-card:hover{border-color:var(--accent-cyan)}
.feature-icon{
  width:48px;height:48px;display:flex;align-items:center;justify-content:center;
  border:1.5px solid oklch(72% 0.19 196 / 0.45);border-radius:var(--radius-card);
  color:var(--accent-cyan);font-size:1.25rem;margin-bottom:16px;
}
.feature-card p{color:var(--text-muted);font-size:.94rem;margin:0}
/* ---------- 步骤条 ---------- */
.steps-row{display:flex;gap:24px}
.step-item{flex:1;position:relative;text-align:center;padding:0 8px}
.step-item:not(:last-child)::after{
  content:"";position:absolute;top:22px;left:calc(50% + 32px);width:calc(100% - 64px);
  border-top:2px dashed var(--border-subtle);
}
.step-num{
  width:44px;height:44px;margin:0 auto 14px;
  display:flex;align-items:center;justify-content:center;
  background:oklch(72% 0.19 196 / 0.14);color:var(--accent-cyan);
  border:1.5px solid var(--accent-cyan);border-radius:50%;
  font-weight:800;font-size:1.05rem;
}
.step-item h3{font-size:1.02rem;margin-bottom:6px}
.step-item p{color:var(--text-muted);font-size:.88rem;margin:0}
@media (max-width:767.98px){
  .steps-row{flex-direction:column;gap:28px}
  .step-item:not(:last-child)::after{display:none}
}
/* ---------- 参数条 ---------- */
.spec-strip{
  background:var(--bg-raised);border:1px solid var(--border-subtle);
  border-radius:var(--radius-card);padding:24px;
  display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between;
}
.spec-item{flex:1;min-width:150px;text-align:center}
.spec-item .spec-val{font-size:1.7rem;font-weight:800;color:var(--accent-cyan);letter-spacing:-0.02em}
.spec-item .spec-label{color:var(--text-muted);font-size:.85rem;font-weight:600}
/* ---------- FAQ ---------- */
.accordion-item{
  background:var(--bg-surface);border:1px solid var(--border-subtle);
  border-radius:var(--radius-card)!important;overflow:hidden;margin-bottom:12px;
}
.accordion-button{
  background:var(--bg-surface);color:var(--text-primary);
  font-weight:600;font-size:1rem;padding:18px 20px;box-shadow:none;
}
.accordion-button:not(.collapsed){background:var(--bg-raised);color:var(--accent-cyan);box-shadow:none}
.accordion-button:focus{box-shadow:0 0 0 2px oklch(72% 0.19 196 / 0.4)}
.accordion-button::after{
  background-image:none;content:"\f107";font-family:"Font Awesome 6 Free";font-weight:900;
  color:var(--accent-cyan);display:flex;align-items:center;justify-content:center;
  transition:transform 200ms ease;
}
.accordion-button:not(.collapsed)::after{transform:rotate(180deg)}
.accordion-body{color:var(--text-muted);font-size:.95rem;padding:18px 20px;border-top:1px solid var(--border-subtle)}
/* ---------- 相关线路卡 ---------- */
.related-card{
  background:var(--bg-surface);border:1px solid var(--border-subtle);
  border-radius:var(--radius-card);padding:24px;height:100%;
  display:flex;flex-direction:column;gap:12px;
  transition:border-color 150ms ease;
}
.related-card:hover{border-color:var(--accent-cyan)}
.related-card .rc-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.related-card p{color:var(--text-muted);font-size:.92rem;margin:0;flex:1}
.rc-link{font-weight:700;font-size:.92rem}
.rc-link i{transition:transform 150ms ease;margin-left:4px}
.rc-link:hover i{transform:translateX(4px)}
/* ---------- CTA 区 ---------- */
.cta-band{
  background:var(--bg-raised);border-top:1px solid var(--border-subtle);
  border-bottom:1px solid var(--border-subtle);
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:0;bottom:0;width:38%;
  background:oklch(70% 0.21 58 / 0.08);
  clip-path:polygon(18% 0,100% 0,100% 100%,0 100%);pointer-events:none;
}
.cta-band .btn-main{min-width:200px;min-height:52px}
/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-surface);border-top:1px solid var(--border-subtle);
  padding:56px 0 24px;color:var(--text-muted);
}
.footer-logo{font-weight:800;font-size:1.1rem;color:var(--accent-cyan);margin-bottom:12px}
.footer-desc{font-size:.92rem;color:var(--text-muted)}
.footer-title{font-weight:700;color:var(--text-primary);margin-bottom:14px;font-size:1rem}
.footer-links{list-style:none;margin:0;padding:0}
.footer-links li{margin-bottom:8px}
.footer-links a{color:var(--text-muted);font-size:.92rem}
.footer-links a:hover{color:var(--accent-cyan)}
.footer-contact{font-size:.92rem;margin-bottom:8px}
.footer-contact i{color:var(--accent-cyan);margin-right:8px}
.footer-copy{
  text-align:center;font-size:.8rem;color:var(--text-muted);
  border-top:1px solid var(--border-subtle);margin-top:40px;padding-top:20px;
}
@media (max-width:575.98px){
  .section{padding:56px 0}
  .cat-hero{padding:44px 0 36px}
  .btn-main,.btn-ghost{width:100%}
  .spec-strip{flex-direction:column;gap:18px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
}

/* roulang page: category2 */
:root{
  --bg-base: oklch(11% 0.012 235);
  --bg-surface: oklch(17% 0.016 235);
  --bg-raised: oklch(22% 0.018 235);
  --accent-cyan: oklch(72% 0.19 196);
  --accent-amber: oklch(70% 0.21 58);
  --border-subtle: oklch(28% 0.014 235);
  --text-primary: oklch(94% 0.006 235);
  --text-muted: oklch(58% 0.010 235);
  --danger: oklch(62% 0.22 25);
  --success: oklch(66% 0.18 155);
  --radius-card: 8px;
  --radius-btn: 6px;
  --radius-badge: 4px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text-primary);
  font-family:'PingFang SC','Microsoft YaHei','Noto Sans SC',system-ui,sans-serif;
  font-size:1rem;line-height:1.7;
  position:relative;
}
a{color:var(--accent-cyan);text-decoration:none;transition:color 150ms ease}
a:hover{color:var(--accent-amber)}
img{max-width:100%;display:block}
h1,h2,h3{margin:0 0 .6em;color:var(--text-primary)}
p{margin:0 0 1em}
.stage-glow{
  position:fixed;inset:0;pointer-events:none;z-index:0;
  background:radial-gradient(ellipse 60% 45% at 50% 12%, oklch(22% 0.06 196 / 0.35), transparent 70%);
}
main,header,footer{position:relative;z-index:1}
.container{max-width:1140px}

/* ===== 导航 ===== */
.site-header{
  background:var(--bg-surface);
  border-bottom:1px solid var(--border-subtle);
  position:sticky;top:0;z-index:100;
  transition:background 200ms ease;
}
.site-header.is-scrolled{background:oklch(17% 0.016 235 / 0.82);backdrop-filter:blur(12px)}
.nav-shell{display:flex;align-items:center;justify-content:space-between;min-height:64px;gap:16px}
.nav-left,.nav-right{display:flex;align-items:center;gap:8px;flex:1}
.nav-right{justify-content:flex-end}
.nav-logo{
  font-weight:800;font-size:1.15rem;color:var(--accent-cyan);
  letter-spacing:-0.01em;white-space:nowrap;text-align:center;
}
.nav-logo:hover{color:var(--accent-cyan)}
.nav-link{
  color:var(--text-muted);font-size:.95rem;font-weight:600;
  padding:8px 12px;border-radius:var(--radius-btn);position:relative;
  transition:color 150ms ease,background 150ms ease;
}
.nav-link:hover{color:var(--text-primary);background:oklch(72% 0.19 196 / 0.08)}
.nav-link.active{color:var(--accent-cyan)}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--accent-cyan);border-radius:2px;
}
.nav-badge{
  position:relative;top:-8px;margin-left:2px;
  background:var(--accent-amber);color:var(--bg-base);
  font-size:.62rem;font-weight:700;letter-spacing:.05em;
  padding:1px 5px;border-radius:var(--radius-badge);
}
.nav-cta{
  background:var(--accent-amber);color:var(--bg-base);
  font-weight:700;font-size:.9rem;padding:10px 20px;
  border-radius:var(--radius-btn);border:none;white-space:nowrap;min-height:44px;
  display:inline-flex;align-items:center;
  transition:filter 150ms ease,transform 100ms ease;
}
.nav-cta:hover{filter:brightness(1.1);color:var(--bg-base)}
.nav-cta:active{transform:scale(.97)}
.nav-toggler{
  display:none;background:none;border:1.5px solid var(--border-subtle);
  color:var(--text-primary);border-radius:var(--radius-btn);
  width:44px;height:44px;font-size:1.1rem;cursor:pointer;
}
.mobile-menu{display:none}
@media (max-width:767.98px){
  .nav-left,.nav-right{display:none}
  .nav-toggler{display:inline-flex;align-items:center;justify-content:center}
  .nav-shell{justify-content:space-between}
  .mobile-menu{display:none;background:var(--bg-raised);border-top:1px solid var(--border-subtle)}
  .mobile-menu.open{display:block}
  .mobile-menu a{
    display:flex;align-items:center;gap:8px;
    min-height:48px;padding:0 20px;color:var(--text-primary);
    font-weight:600;border-bottom:1px solid var(--border-subtle);
  }
  .mobile-menu a.active{color:var(--accent-cyan)}
  .mobile-menu .nav-cta{margin:16px 20px;justify-content:center;display:flex}
}

/* ===== 状态徽章 ===== */
.status-badge{
  display:inline-flex;align-items:center;gap:4px;
  padding:2px 8px;border-radius:var(--radius-badge);
  font-size:.72rem;font-weight:700;letter-spacing:.05em;
}
.status-badge .dot{width:6px;height:6px;border-radius:50%;background:currentColor;animation:pulse 1.6s ease-in-out infinite}
.status-open{background:oklch(66% 0.18 155 / 0.18);color:var(--success)}
.status-warn{background:oklch(62% 0.22 25 / 0.15);color:var(--danger)}
.status-badge.lg{font-size:.85rem;padding:6px 14px}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}

/* ===== 按钮 ===== */
.btn-amber{
  background:var(--accent-amber);color:var(--bg-base);
  font-weight:700;border:none;border-radius:var(--radius-btn);
  padding:12px 28px;min-height:44px;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  transition:filter 150ms ease,transform 100ms ease;
  box-shadow:0 4px 24px oklch(0% 0 0 / 0.45);
}
.btn-amber:hover{filter:brightness(1.1);color:var(--bg-base)}
.btn-amber:active{transform:scale(.97)}
.btn-amber:focus-visible{outline:2px solid var(--accent-amber);outline-offset:2px}
.btn-cyan-outline{
  background:transparent;color:var(--accent-cyan);
  border:1.5px solid var(--accent-cyan);border-radius:var(--radius-btn);
  font-weight:700;padding:12px 28px;min-height:44px;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  transition:background 150ms ease;
}
.btn-cyan-outline:hover{background:oklch(72% 0.19 196 / 0.12);color:var(--accent-cyan)}
.btn-cyan-outline:focus-visible{outline:2px solid var(--accent-cyan);outline-offset:2px}

/* ===== 页内 Hero ===== */
.page-hero{
  min-height:300px;display:flex;align-items:center;
  padding:56px 0 48px;position:relative;overflow:hidden;
  border-bottom:1px solid var(--border-subtle);
}
.page-hero::before{
  content:"";position:absolute;top:0;left:-40%;width:40%;height:100%;
  background:linear-gradient(105deg,transparent,oklch(72% 0.19 196 / 0.06),transparent);
  animation:sweep 6s linear infinite;pointer-events:none;
}
@keyframes sweep{from{left:-40%}to{left:110%}}
.hero-crumb{font-size:.85rem;color:var(--text-muted);margin-bottom:12px}
.hero-crumb a{color:var(--text-muted)}
.hero-crumb a:hover{color:var(--accent-cyan)}
.page-hero h1{
  font-size:clamp(2rem,5vw,3.2rem);font-weight:800;letter-spacing:-0.02em;line-height:1.2;
  animation:fadeInUp 400ms ease-out both;
}
.page-hero .hero-sub{color:var(--text-muted);font-size:1.05rem;max-width:60ch;animation:fadeInUp 400ms ease-out 80ms both}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:20px;animation:fadeInUp 400ms ease-out 140ms both}
@keyframes fadeInUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.hero-status-panel{
  background:var(--bg-surface);border:1px solid var(--border-subtle);
  border-radius:var(--radius-card);padding:24px;
}
.hero-status-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 0;border-bottom:1px dashed var(--border-subtle);
}
.hero-status-row:last-child{border-bottom:none}
.hero-line-name{font-weight:700;font-size:1.05rem}
.hero-line-ms{font-size:.85rem;color:var(--text-muted)}
.hero-line-ms strong{color:var(--accent-cyan);font-size:1.1rem}

/* ===== 通用板块 ===== */
.section{padding:72px 0}
.section-alt{background:var(--bg-surface);border-top:1px solid var(--border-subtle);border-bottom:1px solid var(--border-subtle)}
.section-head{margin-bottom:40px;max-width:66ch}
.section-head h2{font-size:clamp(1.3rem,3vw,1.9rem);font-weight:700}
.section-head p{color:var(--text-muted);margin:0}
.section-tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:.75rem;font-weight:700;letter-spacing:.06em;
  color:var(--accent-cyan);background:oklch(72% 0.19 196 / 0.12);
  padding:4px 12px;border-radius:var(--radius-badge);margin-bottom:14px;
}

/* ===== VS 对比卡 ===== */
.vs-wrap{position:relative}
.vs-mark{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:56px;height:56px;border-radius:50%;
  background:var(--bg-raised);border:1.5px solid var(--accent-cyan);
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:1rem;color:var(--accent-cyan);
  letter-spacing:.05em;z-index:5;
  box-shadow:0 4px 24px oklch(0% 0 0 / 0.45);
}
.line-card{
  background:var(--bg-surface);border:1px solid var(--border-subtle);
  border-radius:var(--radius-card);padding:32px;height:100%;
  transition:border-color 150ms ease;
}
.line-card:hover{border-color:var(--accent-cyan)}
.line-card .line-title{font-size:1.5rem;font-weight:700;margin-bottom:4px}
.line-card .line-tagline{color:var(--text-muted);font-size:.92rem;margin-bottom:20px}
.spec-list{list-style:none;padding:0;margin:0 0 24px}
.spec-list li{
  display:flex;align-items:flex-start;gap:10px;
  padding:10px 0;border-bottom:1px dashed var(--border-subtle);font-size:.95rem;
}
.spec-list li:last-child{border-bottom:none}
.spec-list i{color:var(--accent-cyan);margin-top:5px;font-size:.8rem}
.spec-list strong{color:var(--text-primary)}
.spec-list span{color:var(--text-muted)}

/* ===== 场景 bullet ===== */
.scene-panel{
  background:var(--bg-surface);border:1px solid var(--border-subtle);
  border-radius:var(--radius-card);padding:28px;height:100%;
  transition:border-color 150ms ease;
}
.scene-panel:hover{border-color:var(--accent-cyan)}
.scene-panel h3{font-size:1.1rem;font-weight:600;display:flex;align-items:center;gap:10px;margin-bottom:16px}
.scene-list{list-style:none;padding:0;margin:0}
.scene-list li{
  position:relative;padding:8px 0 8px 22px;color:var(--text-muted);font-size:.95rem;
}
.scene-list li::before{
  content:"";position:absolute;left:2px;top:17px;
  width:8px;height:8px;background:var(--accent-cyan);
  transform:rotate(45deg);
}

/* ===== 切换步骤条 ===== */
.steps-row{display:flex;gap:0;align-items:flex-start}
.step-item{flex:1;text-align:center;position:relative;padding:0 12px}
.step-item:not(:last-child)::after{
  content:"";position:absolute;top:22px;left:calc(50% + 32px);right:calc(-50% + 32px);
  border-top:2px dashed var(--border-subtle);
}
.step-num{
  width:44px;height:44px;border-radius:50%;
  background:oklch(72% 0.19 196 / 0.14);border:1.5px solid var(--accent-cyan);
  color:var(--accent-cyan);font-weight:800;font-size:1.1rem;
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:14px;
}
.step-item h3{font-size:1.05rem;font-weight:600;margin-bottom:6px}
.step-item p{color:var(--text-muted);font-size:.9rem;margin:0}
@media (max-width:767.98px){
  .steps-row{flex-direction:column;gap:28px}
  .step-item{text-align:left;display:flex;gap:16px;align-items:flex-start;padding:0}
  .step-item::after{display:none}
  .step-num{flex-shrink:0;margin-bottom:0}
}

/* ===== 快速对照表 ===== */
.compare-table-wrap{overflow-x:auto;border:1px solid var(--border-subtle);border-radius:var(--radius-card)}
.compare-table{width:100%;border-collapse:collapse;min-width:560px;margin:0}
.compare-table th,.compare-table td{
  padding:14px 18px;text-align:left;font-size:.95rem;
  border-bottom:1px solid var(--border-subtle);
}
.compare-table thead th{
  background:var(--bg-raised);color:var(--text-primary);font-weight:700;
  position:sticky;top:0;
}
.compare-table tbody tr:last-child td{border-bottom:none}
.compare-table td{color:var(--text-muted)}
.compare-table td:first-child{color:var(--text-primary);font-weight:600}
.compare-table .ok{color:var(--success)}
.compare-table .hot{color:var(--accent-amber);font-weight:700}

/* ===== 咨询表单 ===== */
.consult-box{
  background:var(--bg-surface);border:1px solid var(--border-subtle);
  border-radius:var(--radius-card);padding:32px;
}
.consult-box label{font-weight:600;font-size:.9rem;margin-bottom:6px;display:block}
.consult-box .form-control,.consult-box .form-select{
  background:var(--bg-base);border:1px solid var(--border-subtle);
  color:var(--text-primary);border-radius:var(--radius-btn);
  min-height:44px;font-size:.95rem;
}
.consult-box .form-control::placeholder{color:var(--text-muted)}
.consult-box .form-control:focus,.consult-box .form-select:focus{
  background:var(--bg-base);color:var(--text-primary);
  border-color:var(--accent-cyan);box-shadow:0 0 0 3px oklch(72% 0.19 196 / 0.15);
}
.form-hint{font-size:.8rem;color:var(--text-muted);margin-top:4px}
.contact-side{
  background:var(--bg-raised);border:1px solid var(--border-subtle);
  border-radius:var(--radius-card);padding:28px;height:100%;
}
.contact-side p{color:var(--text-muted);font-size:.95rem}
.contact-side i{color:var(--accent-cyan);width:22px}

/* ===== 页脚 ===== */
.site-footer{
  background:var(--bg-surface);border-top:1px solid var(--border-subtle);
  padding:56px 0 24px;margin-top:0;
}
.footer-logo{font-weight:800;font-size:1.15rem;color:var(--accent-cyan);margin-bottom:12px}
.footer-desc{color:var(--text-muted);font-size:.9rem;max-width:36ch}
.footer-title{font-weight:700;font-size:.95rem;margin-bottom:14px}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin-bottom:8px}
.footer-links a{color:var(--text-muted);font-size:.9rem}
.footer-links a:hover{color:var(--accent-cyan)}
.footer-contact{color:var(--text-muted);font-size:.9rem;display:flex;align-items:center;gap:10px}
.footer-contact i{color:var(--accent-cyan)}
.footer-copy{
  text-align:center;color:var(--text-muted);font-size:.8rem;
  border-top:1px solid var(--border-subtle);margin-top:40px;padding-top:20px;
}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .container{padding-left:20px;padding-right:20px}
  .section{padding:56px 0}
}
@media (max-width:767.98px){
  .page-hero{min-height:auto;padding:40px 0 36px}
  .hero-status-panel{margin-top:32px}
  .vs-mark{position:static;transform:none;margin:16px auto}
  .section{padding:48px 0}
  .consult-box{padding:24px}
}
@media (max-width:520px){
  .hero-actions .btn-amber,.hero-actions .btn-cyan-outline{width:100%}
  .line-card{padding:24px}
  .nav-logo{font-size:1rem}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
}