* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --bg: #0f1015;
  --bg-soft: #171822;
  --bg-card: #1e1f2b;
  --line: #2a2c3a;
  --text: #f2f2f5;
  --text-dim: #9a9db0;
  --accent: #ffcc33;
  --accent-deep: #ff9900;
  --radius: 16px;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ============ 通用容器 ============ */
.container { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.section { padding: 60px 0; }
.section-head { margin-bottom: 32px; }
.section-head .eyebrow {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 10px;
}
.section-head h2 {
  font-size: 26px;
  line-height: 1.3;
  margin-bottom: 10px;
}
.section-head p { color: var(--text-dim); font-size: 15px; max-width: 620px; }

/* ============ 顶部导航 ============ */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(15,16,21,0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 62px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; }
.brand img { height: 32px; width: auto; border-radius: 8px; }
.header-nav { display: flex; gap: 26px; font-size: 15px; color: var(--text-dim); }
.header-nav a:hover { color: var(--accent); }
.header-cta {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: #201a00 !important; font-weight: 700;
  padding: 9px 20px; border-radius: 999px; font-size: 14px;
}

/* ============ 首屏 ============ */
.hero {
  position: relative;
  padding: 56px 0 70px;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 18% 18%, rgba(255,204,51,0.16), transparent 46%),
    radial-gradient(circle at 84% 8%, rgba(255,60,120,0.12), transparent 44%);
  pointer-events: none;
}
.hero-inner { position: relative; display: grid; grid-template-columns: 1fr; gap: 40px; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,204,51,0.12);
  border: 1px solid rgba(255,204,51,0.35);
  color: var(--accent);
  font-size: 13px; padding: 6px 14px; border-radius: 999px; margin-bottom: 20px;
}
.hero h1 {
  font-size: 34px; line-height: 1.24; margin-bottom: 18px; letter-spacing: -0.5px;
}
.hero h1 .hl { color: var(--accent); }
.hero-lead { font-size: 16px; color: var(--text-dim); max-width: 540px; margin-bottom: 28px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 26px; }
.btn-download {
  display: inline-flex; align-items: center; gap: 10px;
  background: linear-gradient(135deg, #ffe066, var(--accent-deep));
  color: #241b00; font-weight: 800; font-size: 17px;
  padding: 15px 34px; border-radius: 999px;
  box-shadow: 0 10px 30px rgba(255,170,0,0.28);
  transition: transform .18s ease, box-shadow .18s ease;
}
.btn-download:hover { transform: translateY(-2px); box-shadow: 0 14px 36px rgba(255,170,0,0.4); }
.btn-download small { font-weight: 600; font-size: 12px; opacity: .75; }
.btn-ghost {
  display: inline-flex; align-items: center;
  border: 1px solid var(--line); color: var(--text-dim);
  padding: 15px 26px; border-radius: 999px; font-size: 15px;
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.hero-facts { display: flex; flex-wrap: wrap; gap: 12px 26px; font-size: 14px; color: var(--text-dim); }
.hero-facts span::before { content: "·"; color: var(--accent); margin-right: 8px; }

/* 手机右侧展示 */
.hero-visual { display: flex; justify-content: center; }
.phone-frame {
  width: 240px; background: #05060a;
  border: 8px solid #24263a; border-radius: 34px;
  padding: 8px; box-shadow: 0 24px 60px rgba(0,0,0,0.6);
  position: relative;
}
.phone-frame img { border-radius: 22px; width: 100%; height: 420px; object-fit: cover; }
.phone-notch {
  position: absolute; top: 14px; left: 50%; transform: translateX(-50%);
  width: 76px; height: 18px; background: #05060a; border-radius: 999px; z-index: 2;
}

/* ============ 平台简介 ============ */
.intro-grid { display: grid; grid-template-columns: 1fr; gap: 26px; }
.intro-card {
  background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px;
}
.intro-card h2 { font-size: 23px; margin-bottom: 14px; }
.intro-card p { color: var(--text-dim); font-size: 15px; margin-bottom: 12px; }
.intro-card p:last-child { margin-bottom: 0; }
.intro-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 24px; }
.intro-stat {
  background: var(--bg-card); border-radius: 12px; padding: 16px; text-align: center;
}
.intro-stat strong { display: block; font-size: 20px; color: var(--accent); margin-bottom: 4px; }
.intro-stat span { font-size: 13px; color: var(--text-dim); }

/* ============ 平台优势 ============ */
.advantage-grid { display: grid; grid-template-columns: 1fr; gap: 18px; }
.adv-item {
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px 24px;
  transition: border-color .2s ease, transform .2s ease;
}
.adv-item:hover { border-color: rgba(255,204,51,0.5); transform: translateY(-3px); }
.adv-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border-radius: 10px;
  background: rgba(255,204,51,0.14); color: var(--accent);
  font-weight: 800; margin-bottom: 14px;
}
.adv-item h3 { font-size: 17px; margin-bottom: 8px; }
.adv-item p { font-size: 14.5px; color: var(--text-dim); }

/* ============ 专题板块 ============ */
.topic-list { display: grid; grid-template-columns: 1fr; gap: 20px; }
.topic-card {
  position: relative; border-radius: 20px; overflow: hidden;
  background: #000; aspect-ratio: 16 / 9;
}
.topic-card img { width: 100%; height: 100%; object-fit: cover; opacity: .82; transition: transform .4s ease; }
.topic-card:hover img { transform: scale(1.05); }
.topic-info {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 26px 22px 20px;
  background: linear-gradient(to top, rgba(0,0,0,0.9), transparent);
}
.topic-info h3 { font-size: 19px; margin-bottom: 6px; }
.topic-info p { font-size: 13.5px; color: #c9cbdb; }
.topic-label {
  display: inline-block; font-size: 12px; color: var(--accent);
  border: 1px solid rgba(255,204,51,0.6); border-radius: 999px;
  padding: 2px 10px; margin-bottom: 8px;
}

/* ============ 热播剧 ============ */
.poster-scroll {
  display: flex; gap: 16px; overflow-x: auto; padding-bottom: 14px;
  scrollbar-width: thin; scrollbar-color: var(--line) transparent;
}
.poster-scroll::-webkit-scrollbar { height: 6px; }
.poster-scroll::-webkit-scrollbar-thumb { background: var(--line); border-radius: 8px; }
.poster-card { flex: 0 0 156px; }
.poster-card img {
  width: 156px; height: 220px; object-fit: cover; border-radius: 12px;
  border: 1px solid var(--line);
}
.poster-card p { font-size: 13.5px; margin-top: 9px; color: var(--text); }
.poster-card span { font-size: 12px; color: var(--text-dim); }

/* 截图墙 */
.shot-wall {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 34px;
}
.shot-wall figure {
  border-radius: 14px; overflow: hidden; border: 1px solid var(--line); background: var(--bg-soft);
}
.shot-wall img { width: 100%; height: 100%; object-fit: cover; }
.shot-wall figcaption { font-size: 12.5px; color: var(--text-dim); padding: 9px 12px; }

/* ============ 用户评价弹幕 ============ */
.review-band { background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.danmu-wrap { overflow: hidden; position: relative; }
.danmu-track { display: flex; width: max-content; animation: danmu 46s linear infinite; }
.danmu-wrap:hover .danmu-track { animation-play-state: paused; }
.danmu-group { display: flex; gap: 16px; padding-right: 16px; }
.review-pill {
  white-space: nowrap; background: var(--bg-card);
  border: 1px solid var(--line); border-radius: 999px;
  padding: 10px 20px; font-size: 14.5px; color: #d9dbe8;
}
.review-pill em { color: var(--accent); font-style: normal; margin-right: 6px; }
@keyframes danmu { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ============ 下载板块 ============ */
.download-band { position: relative; padding: 70px 0; }
.download-box {
  background: linear-gradient(150deg, #221c05, #16171f 60%);
  border: 1px solid rgba(255,204,51,0.35);
  border-radius: 24px; padding: 42px 26px; text-align: center;
}
.download-box h2 { font-size: 27px; margin-bottom: 12px; }
.download-box > p { color: var(--text-dim); max-width: 520px; margin: 0 auto 28px; font-size: 15px; }
.download-box .btn-download { font-size: 18px; padding: 17px 44px; }
.download-note { margin-top: 18px; font-size: 13px; color: var(--text-dim); }
.download-steps { display: grid; grid-template-columns: 1fr; gap: 12px; margin-top: 34px; text-align: left; }
.dl-step {
  display: flex; gap: 12px; align-items: flex-start;
  background: rgba(255,255,255,0.03); border-radius: 12px; padding: 14px 16px;
}
.dl-step b { color: var(--accent); flex: 0 0 auto; }
.dl-step span { font-size: 14px; color: var(--text-dim); }

/* ============ 常见问题 ============ */
.faq-list { display: grid; gap: 12px; }
.faq-item {
  background: var(--bg-soft); border: 1px solid var(--line); border-radius: 14px;
  padding: 18px 20px;
}
.faq-item h3 { font-size: 16px; margin-bottom: 8px; color: var(--text); }
.faq-item p { font-size: 14.5px; color: var(--text-dim); }

/* ============ 页脚 ============ */
.site-footer {
  border-top: 1px solid var(--line); padding: 38px 0 30px; background: #0b0c11;
}
.footer-top { display: flex; flex-direction: column; gap: 22px; margin-bottom: 26px; }
.footer-brand { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.footer-brand img { height: 28px; border-radius: 8px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 18px; font-size: 14px; color: var(--text-dim); }
.footer-links a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid var(--line); padding-top: 20px; font-size: 12.5px; color: #6c6f80;
  display: flex; flex-direction: column; gap: 8px;
}

/* ============ 响应式 ============ */
@media (min-width: 768px) {
  .hero { padding: 72px 0 88px; }
  .hero-inner { grid-template-columns: 1.15fr .85fr; align-items: center; }
  .hero h1 { font-size: 44px; }
  .hero-lead { font-size: 17px; }
  .section { padding: 74px 0; }
  .section-head h2 { font-size: 31px; }
  .intro-grid { grid-template-columns: 1.1fr .9fr; }
  .advantage-grid { grid-template-columns: repeat(2, 1fr); }
  .topic-list { grid-template-columns: repeat(2, 1fr); }
  .shot-wall { grid-template-columns: repeat(3, 1fr); }
  .poster-card { flex: 0 0 178px; }
  .poster-card img { width: 178px; height: 250px; }
  .phone-frame { width: 280px; }
  .phone-frame img { height: 500px; }
  .download-steps { grid-template-columns: repeat(3, 1fr); }
  .footer-top { flex-direction: row; justify-content: space-between; align-items: center; }
  .footer-bottom { flex-direction: row; justify-content: space-between; }
  .download-box { padding: 56px 48px; }
  .download-box h2 { font-size: 32px; }
}
@media (min-width: 1024px) {
  .hero h1 { font-size: 50px; }
  .section-head h2 { font-size: 34px; }
  .advantage-grid { grid-template-columns: repeat(4, 1fr); }
  .topic-list { grid-template-columns: repeat(3, 1fr); }
  .topic-card.feature { grid-column: span 2; aspect-ratio: 32 / 9; }
  .shot-wall { grid-template-columns: repeat(4, 1fr); }
  .faq-list { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .header-nav { display: flex; }
}
@media (max-width: 767px) {
  .header-nav { display: none; }
  .hero h1 { font-size: 30px; }
}