/* 91POAPP Official Site — 91-s.autos */
:root {
  --bg-deep: #08080e;
  --bg-card: #111118;
  --bg-elevated: #1a1a24;
  --orange: #ff7a00;
  --orange-light: #ff9a33;
  --orange-glow: rgba(255, 122, 0, 0.25);
  --purple: #7c5cff;
  --text-primary: #f2f2f5;
  --text-secondary: #9b9bab;
  --text-muted: #6a6a7a;
  --border: rgba(255, 255, 255, 0.06);
  --radius: 14px;
  --radius-sm: 8px;
  --nav-h: 58px;
  --ads-sticky-h: 0px;
  --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font);
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: var(--orange-light); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--orange); }

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

.container { width: 100%; max-width: 1100px; margin: 0 auto; padding: 0 18px; }

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-h);
  background: rgba(8, 8, 14, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
}

.brand img { width: 36px; height: 36px; border-radius: 9px; }

.nav-links { display: flex; gap: 6px; list-style: none; }

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.88rem;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: color 0.2s, background 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  background: rgba(255, 122, 0, 0.1);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 4px;
}

.ads-top-wrap {
  padding-top: calc(var(--nav-h) + 12px);
  background: var(--bg-deep);
}

#ads {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  flex-wrap: wrap;
  background: transparent;
  margin: 10px 0;
  gap: 8px;
}

#ads > div {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 70px;
}

#ads img {
  width: 65px;
  height: 65px;
  object-fit: cover;
  border-radius: 18px;
  box-shadow: 0 6px 18px rgba(24, 24, 24, 0.12);
  transition: transform 180ms ease, box-shadow 180ms ease;
  border: none;
}

#ads a { display: inline-block; text-decoration: none; border-radius: 15px; }

#ads img:hover {
  transform: translateY(-4px) scale(1.04);
  box-shadow: 0 10px 24px rgba(255, 122, 0, 0.2);
}

#ads figcaption,
#ads .caption {
  height: 15px;
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-top: 4px;
}

.ads-sticky-bar {
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  z-index: 999;
  background: rgba(17, 17, 24, 0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 8px 0;
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.ads-sticky-bar.visible {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.ads-sticky-bar #ads-sticky {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 8px;
}

.ads-sticky-bar #ads-sticky > div {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 70px;
}

.ads-sticky-bar #ads-sticky img {
  width: 52px;
  height: 52px;
  object-fit: cover;
  border-radius: 14px;
}

.ads-sticky-bar #ads-sticky .caption {
  font-size: 10px;
  color: var(--text-muted);
  text-align: center;
  max-width: 70px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

body.ads-sticky-active { --ads-sticky-h: 80px; }

.hero {
  position: relative;
  padding: 48px 0 56px;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -40%;
  right: -20%;
  width: 70%;
  height: 140%;
  background: radial-gradient(ellipse, var(--orange-glow) 0%, transparent 65%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 122, 0, 0.12);
  border: 1px solid rgba(255, 122, 0, 0.3);
  color: var(--orange-light);
  font-size: 0.78rem;
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 18px;
  letter-spacing: 0.05em;
}

.hero h1 {
  font-size: clamp(1.6rem, 4.5vw, 2.4rem);
  line-height: 1.3;
  font-weight: 800;
  margin-bottom: 16px;
}

.hero h1 span { color: var(--orange); }

.hero-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 28px;
  max-width: 480px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.stat-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 12px;
  text-align: center;
}

.stat-item strong {
  display: block;
  font-size: 1.3rem;
  color: var(--orange);
  font-weight: 800;
}

.stat-item span { font-size: 0.75rem; color: var(--text-muted); }

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero-phone {
  width: 260px;
  border-radius: 28px;
  border: 3px solid rgba(255, 122, 0, 0.3);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5), 0 0 40px var(--orange-glow);
  overflow: hidden;
}

.hero-phone img { width: 100%; }

.hero-glow-ring {
  position: absolute;
  inset: -20px;
  border: 1px solid rgba(255, 122, 0, 0.15);
  border-radius: 36px;
  pointer-events: none;
}

section { padding: 56px 0; }

.section-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--orange);
  margin-bottom: 8px;
  font-weight: 600;
}

.section-title {
  font-size: clamp(1.3rem, 3vw, 1.75rem);
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.35;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 0.92rem;
  margin-bottom: 36px;
  max-width: 640px;
}

.content-block {
  display: grid;
  grid-template-columns: 3fr 7fr;
  gap: 32px;
  align-items: start;
  margin-bottom: 48px;
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  border-left: 3px solid var(--orange);
}

.content-block.reverse { grid-template-columns: 7fr 3fr; }
.content-block.reverse .block-img { order: 2; }
.content-block.reverse .block-text { order: 1; }

.block-img img {
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.block-text h3 {
  font-size: 1.1rem;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.block-text p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 10px;
}

.block-text ul { list-style: none; margin-top: 12px; }

.block-text ul li {
  position: relative;
  padding-left: 18px;
  color: var(--text-secondary);
  font-size: 0.88rem;
  margin-bottom: 6px;
}

.block-text ul li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--orange);
  font-size: 0.75rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  transition: border-color 0.25s, transform 0.25s;
}

.feature-card:hover {
  border-color: rgba(255, 122, 0, 0.35);
  transform: translateY(-3px);
}

.feature-icon {
  width: 44px;
  height: 44px;
  background: rgba(255, 122, 0, 0.12);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 14px;
}

.feature-card h3 { font-size: 0.95rem; margin-bottom: 8px; }
.feature-card p { font-size: 0.83rem; color: var(--text-secondary); }

.cta-banner {
  background: linear-gradient(135deg, rgba(255, 122, 0, 0.15) 0%, rgba(124, 92, 255, 0.1) 100%);
  border: 1px solid rgba(255, 122, 0, 0.25);
  border-radius: var(--radius);
  padding: 40px 32px;
  text-align: center;
  margin: 48px 0;
}

.cta-banner h2 { font-size: 1.4rem; margin-bottom: 10px; }
.cta-banner p { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 20px; }

.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--orange) 0%, #ff5500 100%);
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 14px 36px;
  border-radius: 30px;
  border: none;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 6px 24px var(--orange-glow);
}

.btn-download:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 32px var(--orange-glow);
  color: #fff;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid rgba(255, 122, 0, 0.4);
  color: var(--orange-light);
  padding: 10px 22px;
  border-radius: 24px;
  font-size: 0.88rem;
  transition: background 0.2s;
}

.btn-outline:hover { background: rgba(255, 122, 0, 0.1); color: var(--orange); }

.faq-list { display: flex; flex-direction: column; gap: 12px; }

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.faq-q {
  width: 100%;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 0.92rem;
  font-weight: 600;
  padding: 16px 20px;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font);
}

.faq-q::after { content: "+"; color: var(--orange); font-size: 1.2rem; transition: transform 0.2s; }
.faq-item.open .faq-q::after { transform: rotate(45deg); }

.faq-a {
  display: none;
  padding: 0 20px 16px;
  color: var(--text-secondary);
  font-size: 0.88rem;
}

.faq-item.open .faq-a { display: block; }

.partner-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.partner-links a {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.partner-links a:hover { border-color: var(--orange); color: var(--orange-light); }

.breadcrumb {
  padding: 20px 0 0;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.breadcrumb-only .breadcrumb {
  padding-top: calc(var(--nav-h) + 20px);
}

.breadcrumb a { color: var(--text-secondary); }
.breadcrumb span { margin: 0 6px; }

.page-hero {
  padding: 24px 0 32px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 36px;
}

.page-hero h1 { font-size: 1.6rem; margin-bottom: 8px; }
.page-hero p { color: var(--text-secondary); font-size: 0.9rem; }

.legal-content h2 {
  font-size: 1.05rem;
  margin: 28px 0 10px;
  color: var(--orange-light);
}

.legal-content p,
.legal-content li {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 10px;
}

.legal-content ul { padding-left: 20px; margin-bottom: 14px; }

.error-page {
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 18px;
}

.error-code {
  font-size: 5rem;
  font-weight: 900;
  color: var(--orange);
  line-height: 1;
  margin-bottom: 12px;
}

.error-page h1 { font-size: 1.4rem; margin-bottom: 10px; }
.error-page p { color: var(--text-secondary); margin-bottom: 24px; font-size: 0.92rem; }

.site-footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 40px 0 24px;
  margin-top: 56px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.83rem;
  margin-top: 10px;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 0.85rem;
  margin-bottom: 14px;
  color: var(--text-primary);
}

.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul a { color: var(--text-muted); font-size: 0.83rem; }
.footer-col ul a:hover { color: var(--orange-light); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.footer-bottom p { font-size: 0.78rem; color: var(--text-muted); }

/* ── SEO Text Modules ── */
.text-module {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  margin-bottom: 28px;
}

.text-module h3 {
  font-size: 1.05rem;
  margin-bottom: 14px;
  color: var(--orange-light);
}

.text-module p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 12px;
}

.text-module p:last-child { margin-bottom: 0; }

.advantage-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 20px;
}

.advantage-item {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px 18px;
}

.advantage-item strong {
  display: block;
  color: var(--orange);
  font-size: 0.92rem;
  margin-bottom: 8px;
}

.advantage-item p {
  font-size: 0.84rem;
  color: var(--text-secondary);
  margin: 0;
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.scenario-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 18px;
  border-top: 2px solid var(--orange);
}

.scenario-card h4 {
  font-size: 0.92rem;
  margin-bottom: 10px;
}

.scenario-card p {
  font-size: 0.84rem;
  color: var(--text-secondary);
  margin: 0;
}

.preview-gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.preview-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color 0.25s;
}

.preview-item:hover { border-color: rgba(255, 122, 0, 0.35); }

.preview-item img {
  width: 100%;
  aspect-ratio: 9/16;
  object-fit: cover;
  object-position: top;
}

.preview-item figcaption {
  padding: 10px 12px;
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.text-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.text-columns .text-module { margin-bottom: 0; }

@media (max-width: 768px) {
  .menu-toggle { display: block; }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(8, 8, 14, 0.98);
    flex-direction: column;
    padding: 12px 18px 18px;
    border-bottom: 1px solid var(--border);
    gap: 4px;
  }

  .nav-links.open { display: flex; }

  .hero-grid { grid-template-columns: 1fr; gap: 28px; }
  .hero-visual { order: -1; }
  .hero-phone { width: 220px; }

  .content-block,
  .content-block.reverse { grid-template-columns: 1fr; }

  .content-block.reverse .block-img { order: 0; }

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

  .footer-grid { grid-template-columns: 1fr; gap: 20px; }

  .hero-stats { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .stat-item { padding: 12px 8px; }
  .stat-item strong { font-size: 1.1rem; }

  .advantage-list { grid-template-columns: 1fr; }
  .scenario-grid { grid-template-columns: 1fr; }
  .preview-gallery { grid-template-columns: repeat(2, 1fr); }
  .text-columns { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .feature-grid { grid-template-columns: 1fr; }
}