/* ============================================================
   漫蛙 manwa21 · 单页官网样式
   主题：漫画橙红（贴合 App 推荐页橙红强调）
   ============================================================ */
:root {
  --brand: #ff5a36;
  --brand-deep: #e8401f;
  --brand-soft: #fff0eb;
  --ink: #23212b;
  --ink-soft: #62606e;
  --line: #efedf1;
  --bg: #ffffff;
  --bg-alt: #faf8f9;
  --dark: #23212b;
  --radius: 16px;
  --shadow: 0 10px 30px rgba(255, 90, 54, .14);
  --maxw: 1180px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--ink); background: var(--bg); line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 860px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 26px; border-radius: 999px; font-weight: 600; font-size: 15px;
  border: none; cursor: pointer; white-space: nowrap;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:active { transform: scale(.97); }
.btn-primary { background: linear-gradient(135deg, var(--brand), var(--brand-deep)); color: #fff; box-shadow: var(--shadow); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 34px rgba(255,90,54,.3); }
.btn-light { background: #fff; color: var(--brand-deep); }
.btn-lg { padding: 15px 34px; font-size: 16px; }

/* ---------- 导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.92);
  backdrop-filter: saturate(180%) blur(12px); border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-logo { width: 38px; height: 38px; border-radius: 10px; object-fit: contain; }
.brand-name { font-weight: 700; font-size: 18px; }
.nav-links { display: flex; gap: 28px; }
.nav-links a { font-size: 15px; color: var(--ink-soft); transition: color .15s; }
.nav-links a:hover { color: var(--brand); }
.nav-download { padding: 9px 20px; font-size: 14px; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 22px; height: 2px; background: var(--ink); border-radius: 2px; }

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(1200px 500px at 85% -10%, var(--brand-soft), transparent 60%),
    linear-gradient(180deg, #fffaf8 0%, #fff 100%);
  overflow: hidden;
  padding-bottom: 0;
}
.hero-inner {
  display: grid; grid-template-columns: 1.05fr .95fr; align-items: center;
  gap: 40px; padding: 72px 24px 56px;
}
.hero-eyebrow { color: var(--brand); font-weight: 700; letter-spacing: 3px; font-size: 13px; margin-bottom: 14px; }
.hero h1 { font-size: 46px; line-height: 1.2; font-weight: 800; letter-spacing: -.5px; }
.hl { background: linear-gradient(120deg, var(--brand), #ff8a5c); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-sub { margin-top: 18px; font-size: 17px; color: var(--ink-soft); max-width: 500px; }
.hero-tags { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.tag-hot { color: var(--brand); font-weight: 700; font-size: 14px; }
.hero-tags a { font-size: 13.5px; color: var(--ink-soft); background: #fff; border: 1px solid var(--line); padding: 4px 12px; border-radius: 999px; transition: .15s; }
.hero-tags a:hover { color: var(--brand); border-color: var(--brand); }
.hero-actions { margin-top: 26px; }
.hero-meta { margin-top: 14px; color: var(--ink-soft); font-size: 13.5px; }
.hero-visual { display: flex; justify-content: center; }
.hero-img { max-height: 560px; border-radius: 22px; box-shadow: 0 30px 60px rgba(35,33,43,.18); }

/* ---------- 数据条 ---------- */
.stats-bar {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px;
  background: var(--dark); border-radius: 18px; padding: 26px 20px; margin-bottom: -34px;
  position: relative; z-index: 2;
}
.stat { text-align: center; color: #fff; }
.stat b { display: block; font-size: 26px; color: #ffb199; }
.stat span { font-size: 13px; opacity: .7; }

/* ---------- 通用 section ---------- */
.section { padding: 90px 0 70px; }
.section-alt { background: var(--bg-alt); }
.section-tag { color: var(--brand); font-weight: 700; letter-spacing: 2px; font-size: 13px; margin-bottom: 12px; }
.section-title { font-size: 32px; font-weight: 800; letter-spacing: -.3px; }
.section-desc { margin-top: 12px; color: var(--ink-soft); font-size: 16px; max-width: 640px; }

/* ---------- 功能 ---------- */
.grid-3 { display: grid; gap: 20px; }
.features-grid { grid-template-columns: repeat(3, 1fr); margin-top: 40px; }
.feature-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 24px; transition: transform .2s, box-shadow .2s, border-color .2s;
}
.feature-card:hover { transform: translateY(-6px); border-color: var(--brand); box-shadow: var(--shadow); }
.feat-ico { font-size: 28px; display: block; margin-bottom: 14px; }
.feature-card h3 { font-size: 19px; margin-bottom: 8px; }
.feature-card p { color: var(--ink-soft); font-size: 14.5px; }

/* ---------- 榜单 ---------- */
.rank-block { margin-top: 30px; }
.rank-title { font-size: 19px; margin-bottom: 14px; }
.rank-list { list-style: none; display: grid; gap: 10px; }
.rank-list li {
  display: flex; align-items: center; gap: 14px;
  background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; font-size: 15px;
}
.rk {
  width: 26px; height: 26px; flex: none; border-radius: 8px;
  background: var(--brand-soft); color: var(--brand-deep); font-weight: 800;
  display: flex; align-items: center; justify-content: center; font-size: 14px;
}
.rank-list em { margin-left: auto; font-style: normal; color: var(--ink-soft); font-size: 13px; }

/* ---------- 应用预览 ---------- */
.preview-grid { margin-top: 40px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.pv { margin: 0; }
.pv img { border-radius: 16px; box-shadow: 0 16px 36px rgba(35,33,43,.14); transition: transform .2s; }
.pv:hover img { transform: translateY(-6px); }
.pv figcaption { text-align: center; margin-top: 12px; font-size: 14.5px; color: var(--ink-soft); }

/* ---------- 多线路 ---------- */
.line-row { display: grid; grid-template-columns: 1fr .8fr; gap: 40px; align-items: center; }
.line-media img { border-radius: 18px; box-shadow: 0 20px 45px rgba(35,33,43,.16); }

/* ---------- FAQ ---------- */
.faq-list { margin-top: 32px; display: grid; gap: 14px; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 0 22px; }
.faq-item summary { cursor: pointer; list-style: none; font-weight: 600; font-size: 16.5px; padding: 18px 30px 18px 0; position: relative; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; position: absolute; right: 0; top: 50%; transform: translateY(-50%); font-size: 22px; color: var(--brand); transition: transform .2s; }
.faq-item[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq-item p { padding: 0 0 18px; color: var(--ink-soft); font-size: 15px; }

/* ---------- CTA ---------- */
.cta { background: linear-gradient(135deg, var(--brand) 0%, var(--brand-deep) 100%); color: #fff; padding: 72px 0; }
.cta-inner { text-align: center; }
.cta h2 { font-size: 32px; font-weight: 800; }
.cta p { margin: 12px 0 28px; opacity: .92; font-size: 16px; }
.cta-ver { margin-top: 16px; font-size: 13px; opacity: .8; }

/* ---------- 页脚 ---------- */
.site-footer { background: #1c1a22; color: #a9a6b3; padding: 40px 0; font-size: 14px; }
.footer-inner { text-align: center; }
.footer-brand { display: flex; align-items: center; justify-content: center; gap: 10px; margin-bottom: 14px; color: #fff; font-weight: 600; }
.footer-copy { margin-top: 10px; opacity: .7; font-size: 12.5px; }

/* ---------- 悬浮下载 ---------- */
.float-download {
  position: fixed; right: 18px; bottom: 22px; z-index: 99;
  background: linear-gradient(135deg, var(--brand), var(--brand-deep)); color: #fff;
  padding: 14px 26px; border-radius: 999px; font-weight: 700;
  box-shadow: 0 12px 30px rgba(255,90,54,.4); display: none;
}

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; padding: 48px 24px 40px; }
  .hero h1 { font-size: 34px; }
  .hero-img { max-height: 440px; margin: 0 auto; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); margin-bottom: -20px; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .preview-grid { grid-template-columns: 1fr 1fr; }
  .line-row { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .nav-links { position: absolute; top: 68px; left: 0; right: 0; background: #fff; flex-direction: column; gap: 0; border-bottom: 1px solid var(--line); max-height: 0; overflow: hidden; transition: max-height .25s ease; }
  .nav-links.open { max-height: 320px; }
  .nav-links a { padding: 14px 24px; border-top: 1px solid var(--line); }
  .nav-toggle { display: flex; }
  .nav-download { display: none; }
  .features-grid, .preview-grid { grid-template-columns: 1fr; }
  .section { padding: 60px 0 40px; }
  .section-title { font-size: 26px; }
  .float-download { display: inline-flex; }
}