/* 抖阴官网 dyvip.baby 全局样式 */
:root {
  --bg-primary: #0d0d12;
  --bg-secondary: #16161e;
  --bg-card: #1c1c28;
  --accent: #ff2d55;
  --accent-hover: #ff4d6d;
  --accent-cyan: #00f0ff;
  --text-primary: #ffffff;
  --text-secondary: #a0a0b0;
  --text-muted: #6b6b7b;
  --border: #2a2a3a;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --max-width: 1200px;
  --header-h: 62px;
  --adbar-h: 88px;
  --adbar-gap: 16px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  scroll-padding-top: calc(var(--header-h) + var(--adbar-h) + var(--adbar-gap) + 12px);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
}

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

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

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  background: rgba(13, 13, 18, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-primary);
}

.logo-link:hover {
  color: var(--text-primary);
}

.logo-img {
  width: 42px;
  height: 42px;
  border-radius: 10px;
}

.logo-text {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.nav-main {
  display: flex;
  gap: 8px;
  list-style: none;
}

.nav-main a {
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.95rem;
  transition: all 0.2s;
}

.nav-main a:hover,
.nav-main a.active {
  color: var(--text-primary);
  background: var(--bg-card);
}

.nav-main a.active {
  color: var(--accent);
}

.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff !important;
  padding: 10px 22px;
  border-radius: 24px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: background 0.2s, transform 0.2s;
  border: none;
  cursor: pointer;
}

.btn-download:hover {
  background: var(--accent-hover);
  color: #fff !important;
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px;
}

/* Hero */
.hero {
  padding: 60px 0 50px;
  background: linear-gradient(180deg, #1a0a14 0%, var(--bg-primary) 100%);
  text-align: center;
}

.hero h1 {
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.3;
}

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

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto 32px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  color: var(--text-primary) !important;
  padding: 10px 22px;
  border-radius: 24px;
  font-weight: 600;
  border: 1px solid var(--border);
  transition: all 0.2s;
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent) !important;
}

.hero-screenshot {
  max-width: 360px;
  margin: 0 auto;
  border-radius: 24px;
  box-shadow: var(--shadow), 0 0 60px rgba(255, 45, 85, 0.15);
  border: 2px solid var(--border);
}

/* Section */
.section {
  padding: 56px 0;
}

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

.section-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 12px;
  text-align: center;
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Feature Grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: transform 0.2s, border-color 0.2s;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}

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

.feature-card-body {
  padding: 20px;
}

.feature-card h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Category Tags */
.category-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 32px;
}

.tag {
  background: var(--bg-card);
  color: var(--text-secondary);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  border: 1px solid var(--border);
}

.tag.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* Content Article */
.content-article {
  max-width: 860px;
  margin: 0 auto;
}

.content-article h2 {
  font-size: 1.5rem;
  margin: 40px 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--accent);
  display: inline-block;
}

.content-article h3 {
  font-size: 1.2rem;
  margin: 28px 0 12px;
  color: var(--accent);
}

.content-article p {
  margin-bottom: 16px;
  color: var(--text-secondary);
  text-align: justify;
}

.content-article ul, .content-article ol {
  margin: 12px 0 20px 24px;
  color: var(--text-secondary);
}

.content-article li {
  margin-bottom: 8px;
}

.content-article a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Screenshot Gallery */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

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

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

.gallery-caption {
  padding: 14px 16px;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

/* Download Section */
.download-section {
  text-align: center;
  padding: 60px 0;
  background: linear-gradient(135deg, #1a0a14, #0d0d12);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.download-box {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  background: var(--bg-card);
  padding: 40px 48px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.download-box img {
  width: 80px;
  border-radius: 18px;
}

/* Page Header */
.page-header {
  padding: 48px 0 32px;
  text-align: center;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}

.page-header h1 {
  font-size: 2rem;
  margin-bottom: 8px;
}

.page-header p {
  color: var(--text-secondary);
}

.breadcrumb {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.breadcrumb a {
  color: var(--text-muted);
}

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

/* Legal Page */
.legal-content {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 20px 60px;
}

.legal-content h2 {
  font-size: 1.3rem;
  margin: 32px 0 12px;
  color: var(--accent);
}

.legal-content p, .legal-content li {
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.legal-content ul, .legal-content ol {
  margin-left: 24px;
  margin-bottom: 16px;
}

.legal-content .update-date {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

/* Error Pages */
.error-page {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 20px;
}

.error-code {
  font-size: 6rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 16px;
}

.error-page h1 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.error-page p {
  color: var(--text-secondary);
  margin-bottom: 28px;
}

/* Footer */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 48px 0 24px;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
}

.footer-brand img {
  width: 48px;
  margin-bottom: 12px;
  border-radius: 10px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  max-width: 320px;
}

.footer-links h4 {
  font-size: 0.95rem;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-keywords {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-top: 8px;
}

/* Internal Links Box */
.internal-links {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin: 32px 0;
}

.internal-links h3 {
  font-size: 1rem;
  margin-bottom: 12px;
}

.internal-links ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.internal-links a {
  background: var(--bg-secondary);
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.internal-links a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* Responsive */
@media (max-width: 768px) {
  .header-inner {
    position: relative;
  }

  .header-inner > nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 1001;
  }

  .nav-main {
    display: none;
    position: relative;
    top: auto;
    left: auto;
    right: auto;
    background: var(--bg-secondary);
    flex-direction: column;
    padding: 16px;
    border-bottom: 1px solid var(--border);
  }

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

  .menu-toggle {
    display: block;
    margin-left: auto;
    flex-shrink: 0;
  }

  .header-inner .btn-download {
    display: none;
  }

  .site-footer {
    padding: 28px 0 16px;
    padding-bottom: calc(16px + env(safe-area-inset-bottom, 0px));
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 20px 16px;
    margin-bottom: 20px;
  }

  .footer-brand {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .footer-brand img {
    width: 40px;
    margin-bottom: 10px;
  }

  .footer-brand p {
    max-width: none;
    font-size: 0.84rem;
    line-height: 1.65;
  }

  .footer-keywords {
    font-size: 0.72rem;
    line-height: 1.6;
    margin-top: 6px;
  }

  .footer-links h4 {
    font-size: 0.88rem;
    margin-bottom: 10px;
  }

  .footer-links li {
    margin-bottom: 6px;
  }

  .footer-links a {
    font-size: 0.84rem;
    display: block;
    padding: 3px 0;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 6px;
    padding-top: 16px;
  }

  .footer-bottom p {
    font-size: 0.78rem;
    line-height: 1.5;
  }

  .hero {
    padding: 40px 0 30px;
  }

  .download-box {
    padding: 28px 24px;
    width: 100%;
  }
}

/* 广告栏 */
.ad-bar {
  position: sticky;
  top: var(--header-h);
  z-index: 999;
  background: rgba(22, 22, 30, 0.97);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: 10px 12px 12px;
  margin-bottom: var(--adbar-gap);
}

.ad-bar + main {
  padding-top: var(--adbar-gap);
}

#ads {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 8px 12px;
  background: transparent;
  max-width: var(--max-width);
  margin: 0 auto;
}

#ads > div {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 72px;
  box-sizing: border-box;
}

#ads img {
  width: 65px;
  height: 65px;
  object-fit: cover;
  border-radius: 16px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
  transition: transform 180ms ease, box-shadow 180ms ease;
  display: block;
  border: 1px solid var(--border);
  background: var(--bg-card);
}

#ads a {
  display: inline-block;
  text-decoration: none;
  border-radius: 16px;
}

#ads a:hover img {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 8px 20px rgba(255, 45, 85, 0.25);
  border-color: var(--accent);
}

#ads figcaption,
#ads .caption {
  height: 15px;
  font-size: 11px;
  color: var(--text-secondary);
  text-align: center;
  max-width: 72px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-top: 4px;
}

@media (max-width: 768px) {
  :root {
    --header-h: 70px;
    --adbar-h: 96px;
    --adbar-gap: 20px;
  }

  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
  }

  .ad-bar {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    width: 100%;
    z-index: 999;
    padding: 8px 8px 10px;
    margin-bottom: 0;
    background: #16161e;
    backdrop-filter: none;
    border-bottom: 1px solid var(--border);
    box-sizing: border-box;
  }

  .ad-bar + main {
    padding-top: calc(var(--header-h) + var(--adbar-h) + var(--adbar-gap));
  }

  body.no-ad-bar .ad-bar + main {
    padding-top: calc(var(--header-h) + var(--adbar-gap));
  }

  #ads > div {
    width: 64px;
  }

  #ads img {
    width: 58px;
    height: 58px;
  }
}

/* ========== 首页专属排版 home-page ========== */

.home-page main {
  overflow-x: hidden;
}

/* 不对称首屏 */
.home-hero {
  position: relative;
  padding: 48px 0 56px;
  overflow: hidden;
}

.home-hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 85% 20%, rgba(255, 45, 85, 0.12), transparent),
    radial-gradient(ellipse 40% 40% at 10% 80%, rgba(0, 240, 255, 0.08), transparent),
    linear-gradient(165deg, #120810 0%, var(--bg-primary) 55%);
  pointer-events: none;
}

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

.home-badge {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 240, 255, 0.35);
  padding: 5px 14px;
  border-radius: 4px;
  margin-bottom: 20px;
}

.home-hero-copy h1 {
  font-size: clamp(1.9rem, 4.5vw, 2.75rem);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 18px;
}

.home-hero-copy h1 em {
  font-style: normal;
  color: var(--accent);
  text-shadow: 2px 0 var(--accent-cyan), -2px 0 rgba(255, 45, 85, 0.6);
}

.home-lead {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 520px;
  margin-bottom: 28px;
}

.home-metrics {
  display: flex;
  gap: 28px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.home-metric strong {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
}

.home-metric span {
  font-size: 0.82rem;
  color: var(--text-muted);
}

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

/* 双机叠放 */
.phone-stack {
  position: relative;
  width: 100%;
  max-width: 420px;
  margin: 0 auto;
  min-height: 420px;
}

.phone-frame {
  border-radius: 28px;
  overflow: hidden;
  border: 2px solid var(--border);
  box-shadow: var(--shadow);
  background: #000;
}

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

.phone-main {
  width: 72%;
  margin-left: auto;
  position: relative;
  z-index: 2;
}

.phone-offset {
  width: 58%;
  position: absolute;
  left: 0;
  bottom: -20px;
  z-index: 1;
  opacity: 0.92;
  transform: rotate(-6deg);
  border-color: rgba(0, 240, 255, 0.3);
}

/* 锚点条 */
.home-anchor-bar {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: calc(var(--header-h) + var(--adbar-h) + var(--adbar-gap));
  z-index: 50;
}

.home-anchor-list {
  display: flex;
  gap: 4px;
  list-style: none;
  overflow-x: auto;
  padding: 10px 0;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.home-anchor-list::-webkit-scrollbar {
  display: none;
}

.home-anchor-list a {
  display: block;
  white-space: nowrap;
  padding: 8px 16px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  border-radius: 6px;
  border: 1px solid transparent;
  transition: all 0.2s;
}

.home-anchor-list a:hover {
  color: var(--text-primary);
  background: var(--bg-card);
  border-color: var(--border);
}

/* 章节标题 */
.home-section {
  padding: 64px 0;
}

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

.home-section-head {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  margin-bottom: 36px;
}

.home-section-num {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px var(--accent);
  flex-shrink: 0;
  opacity: 0.7;
}

.home-section-head h2 {
  font-size: 1.6rem;
  margin-bottom: 6px;
}

.home-section-head p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Bento 网格 */
.home-bento {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 200px;
  gap: 14px;
}

.bento-cell {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-card);
}

.bento-cell img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
}

.bento-wide {
  grid-column: span 2;
  grid-row: span 2;
}

.bento-tall {
  grid-row: span 2;
}

.bento-text {
  grid-column: span 2;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.bento-text h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.bento-text p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 14px;
}

.bento-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
}

.bento-tags li {
  font-size: 0.78rem;
  padding: 4px 12px;
  border-radius: 4px;
  background: var(--bg-secondary);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 240, 255, 0.2);
}

.bento-accent {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px rgba(255, 45, 85, 0.15);
}

.bento-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 14px 16px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.88));
}

.bento-label h3 {
  font-size: 0.95rem;
  margin-bottom: 2px;
}

.bento-label p {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

/* 导航示意图 */
.home-nav-map {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.nav-map-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 20px;
  transition: border-color 0.2s, transform 0.2s;
}

.nav-map-item:hover {
  border-color: rgba(255, 45, 85, 0.4);
  transform: translateY(-2px);
}

.nav-map-active {
  border-color: var(--accent);
  background: linear-gradient(135deg, rgba(255, 45, 85, 0.08), var(--bg-card));
}

.nav-map-icon {
  display: block;
  font-size: 1.4rem;
  margin-bottom: 10px;
  color: var(--accent);
}

.nav-map-item strong {
  display: block;
  font-size: 1rem;
  margin-bottom: 6px;
}

.nav-map-item p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* 双栏指南 */
.home-guide-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 40px;
  align-items: start;
}

.home-toc {
  position: sticky;
  top: calc(var(--header-h) + var(--adbar-h) + var(--adbar-gap) + 24px);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.home-toc-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.home-toc ol {
  list-style: none;
  counter-reset: toc;
  margin-bottom: 20px;
}

.home-toc li {
  counter-increment: toc;
  margin-bottom: 4px;
}

.home-toc a {
  display: block;
  padding: 7px 10px;
  font-size: 0.86rem;
  color: var(--text-secondary);
  border-radius: 6px;
  border-left: 2px solid transparent;
  transition: all 0.2s;
}

.home-toc a::before {
  content: counter(toc, decimal-leading-zero) " ";
  color: var(--text-muted);
  font-size: 0.75rem;
  margin-right: 4px;
}

.home-toc a:hover {
  color: var(--accent);
  background: var(--bg-secondary);
  border-left-color: var(--accent);
}

.home-toc-links {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.home-toc-links a {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.home-toc-links a:hover {
  color: var(--accent);
}

.home-article h2 {
  font-size: 1.35rem;
  margin: 36px 0 14px;
  padding-left: 14px;
  border-left: 3px solid var(--accent);
}

.home-article h2:first-child {
  margin-top: 0;
}

.home-article h3 {
  font-size: 1.05rem;
  color: var(--accent-cyan);
  margin: 24px 0 10px;
}

.home-article p {
  color: var(--text-secondary);
  margin-bottom: 14px;
  text-align: justify;
}

.home-article ol {
  margin: 12px 0 18px 22px;
  color: var(--text-secondary);
}

.home-article li {
  margin-bottom: 8px;
}

.home-article a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 横向胶片 */
.home-filmstrip {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding: 8px 20px 24px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--accent) var(--bg-card);
}

.home-filmstrip::-webkit-scrollbar {
  height: 6px;
}

.home-filmstrip::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 3px;
}

.filmstrip-slide {
  flex: 0 0 220px;
  scroll-snap-align: start;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-card);
}

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

.filmstrip-slide figcaption {
  padding: 10px 14px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-align: center;
  border-top: 1px solid var(--border);
}

/* FAQ 折叠 */
.home-faq-wrap {
  max-width: 760px;
}

.home-faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

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

.home-faq-item summary {
  padding: 18px 22px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.home-faq-item summary::after {
  content: "+";
  font-size: 1.2rem;
  color: var(--accent);
  font-weight: 400;
}

.home-faq-item[open] summary::after {
  content: "−";
}

.home-faq-item p {
  padding: 0 22px 18px;
  color: var(--text-secondary);
  font-size: 0.92rem;
}

/* 下载步骤带 */
.home-download-band {
  background: linear-gradient(135deg, #1a0812, #0d0d12 60%);
  border-top: 1px solid var(--border);
  padding: 56px 0 48px;
}

.home-download-inner {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 28px;
}

.home-download-brand img {
  border-radius: 18px;
  margin-bottom: 16px;
}

.home-download-brand h2 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.home-download-brand p {
  color: var(--text-secondary);
  font-size: 0.92rem;
}

.home-download-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
  list-style: none;
}

.home-download-steps li {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 12px;
  font-size: 0.82rem;
  color: var(--text-secondary);
  text-align: center;
  line-height: 1.45;
}

.home-download-steps li span {
  display: block;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 6px;
}

.home-download-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.home-download-links a {
  font-size: 0.84rem;
  color: var(--text-muted);
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: all 0.2s;
}

.home-download-links a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* 首页移动端 */
@media (max-width: 992px) {
  .home-hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .home-lead {
    margin-left: auto;
    margin-right: auto;
  }

  .home-metrics {
    justify-content: center;
  }

  .home-hero-cta {
    justify-content: center;
  }

  .phone-stack {
    max-width: 320px;
    min-height: 360px;
  }

  .home-bento {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 180px;
  }

  .bento-wide {
    grid-column: span 2;
  }

  .bento-text {
    grid-column: span 2;
  }

  .home-nav-map {
    grid-template-columns: repeat(2, 1fr);
  }

  .home-guide-layout {
    grid-template-columns: 1fr;
  }

  .home-toc {
    position: static;
  }

  .home-toc ol {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
  }

  .home-toc li {
    margin-bottom: 0;
  }

  .home-toc a::before {
    display: none;
  }

  .home-toc-links {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 10px;
  }

  .home-download-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .home-download-brand img {
    margin-left: auto;
    margin-right: auto;
  }

  .home-download-steps {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .home-hero {
    padding: 32px 0 40px;
  }

  .home-section {
    padding: 44px 0;
  }

  .home-section-head {
    flex-direction: column;
    gap: 8px;
  }

  .home-section-num {
    font-size: 1.8rem;
  }

  .home-bento {
    grid-template-columns: 1fr;
    grid-auto-rows: auto;
  }

  .bento-wide,
  .bento-tall,
  .bento-text {
    grid-column: span 1;
    grid-row: span 1;
  }

  .bento-cell:not(.bento-text) {
    min-height: 280px;
  }

  .home-nav-map {
    grid-template-columns: 1fr;
  }

  .home-download-steps {
    grid-template-columns: 1fr;
  }

  .phone-offset {
    display: none;
  }

  .phone-main {
    width: 85%;
    margin: 0 auto;
  }
}