:root {
  --bg: #0b0c10;
  --bg-soft: #14161f;
  --card: #1a1d2a;
  --line: rgba(255,255,255,0.1);
  --text: #f2f3f7;
  --muted: #9aa0b4;
  --accent: #ffc847;
  --accent-2: #ff7a45;
  --grad: linear-gradient(135deg, #ffc847 0%, #ff7a45 100%);
  --radius: 16px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.container { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 20px; }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 90;
  background: rgba(11,12,16,0.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; height: 64px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; }
.brand img { height: 32px; width: auto; border-radius: 8px; }
.main-nav { display: none; gap: 20px; font-size: 14px; color: var(--muted); }
.main-nav a { transition: color .2s; }
.main-nav a:hover { color: var(--accent); }
.header-cta {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px; border-radius: 999px;
  background: var(--grad); color: #1a1200;
  font-size: 14px; font-weight: 700; white-space: nowrap;
}
.nav-toggle {
  display: none;
  width: 38px; height: 38px; border-radius: 10px;
  background: var(--card); border: 1px solid var(--line);
  color: var(--text); font-size: 18px; cursor: pointer;
}
.mobile-nav {
  display: none; flex-direction: column; gap: 4px;
  padding: 10px 20px 18px; border-top: 1px solid var(--line);
  background: var(--bg-soft);
}
.mobile-nav.open { display: flex; }
.mobile-nav a { padding: 9px 0; font-size: 14px; color: var(--muted); border-bottom: 1px dashed var(--line); }
.mobile-nav a:last-child { border-bottom: none; }

/* ===== Hero ===== */
.hero {
  position: relative; overflow: hidden;
  padding: 56px 0 64px;
  background:
    radial-gradient(circle at 18% 12%, rgba(255,200,71,0.18), transparent 42%),
    radial-gradient(circle at 85% 0%, rgba(255,122,69,0.2), transparent 46%),
    linear-gradient(180deg, #12141d 0%, #0b0c10 100%);
}
.hero::after {
  content: ""; position: absolute; inset: auto -10% -40% -10%; height: 120px;
  background: radial-gradient(ellipse at center, rgba(255,200,71,0.12), transparent 70%);
}
.hero-grid { display: grid; gap: 36px; align-items: center; position: relative; z-index: 2; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px; border-radius: 999px;
  background: rgba(255,200,71,0.12); border: 1px solid rgba(255,200,71,0.35);
  color: var(--accent); font-size: 13px; font-weight: 600; margin-bottom: 18px;
}
.hero h1 {
  font-size: 30px; line-height: 1.32; font-weight: 800; letter-spacing: .5px;
}
.hero h1 em { font-style: normal; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-desc { margin-top: 16px; color: var(--muted); font-size: 15px; max-width: 560px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.hero-points span {
  font-size: 13px; color: #d9dce8; padding: 6px 12px;
  border-radius: 8px; background: rgba(255,255,255,0.06); border: 1px solid var(--line);
}
.download-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 13px 22px; border-radius: 14px;
  font-size: 15px; font-weight: 700; transition: transform .18s, box-shadow .18s;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--grad); color: #1a1200; box-shadow: 0 10px 26px rgba(255,160,60,0.25); }
.btn-ghost { background: rgba(255,255,255,0.07); border: 1px solid var(--line); color: var(--text); }
.btn .btn-sub { display: block; font-size: 11px; font-weight: 500; opacity: .8; }
.hero-visual { position: relative; }
.poster-stack { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.poster-stack figure {
  border-radius: 14px; overflow: hidden; border: 1px solid var(--line);
  background: var(--card);
}
.poster-stack figure:nth-child(1) { transform: translateY(14px); }
.poster-stack figure:nth-child(4) { transform: translateY(14px); }
.poster-stack img { width: 100%; aspect-ratio: 3/4; object-fit: cover; }

/* ===== Section base ===== */
.section { padding: 64px 0; }
.section-alt { background: var(--bg-soft); }
.section-head { max-width: 700px; margin-bottom: 34px; }
.eyebrow {
  display: inline-block; font-size: 12px; letter-spacing: 2px; font-weight: 700;
  color: var(--accent); margin-bottom: 10px; text-transform: uppercase;
}
.section-head h2 { font-size: 24px; font-weight: 800; line-height: 1.35; }
.section-head p { margin-top: 12px; color: var(--muted); font-size: 15px; }

/* ===== AI 专区 ===== */
.ai-layout { display: grid; gap: 22px; }
.ai-feature {
  border-radius: var(--radius); overflow: hidden; position: relative;
  border: 1px solid var(--line); background: var(--card);
}
.ai-feature img { width: 100%; height: 100%; aspect-ratio: 3/4; object-fit: cover; }
.ai-feature-caption {
  position: absolute; inset: auto 0 0 0; padding: 18px;
  background: linear-gradient(180deg, transparent, rgba(0,0,0,0.9));
}
.ai-feature-caption h3 { font-size: 17px; font-weight: 700; }
.ai-feature-caption p { font-size: 13px; color: #c3c7d6; margin-top: 4px; }
.ai-cards { display: grid; gap: 14px; grid-template-columns: repeat(2, 1fr); }
.ai-card {
  padding: 18px 16px; border-radius: 14px;
  background: var(--card); border: 1px solid var(--line);
}
.ai-card strong { display: block; font-size: 15px; margin-bottom: 6px; color: var(--accent); }
.ai-card p { font-size: 13.5px; color: var(--muted); }

/* ===== 热播 ===== */
.drama-grid { display: grid; gap: 18px; grid-template-columns: repeat(2, 1fr); }
.drama-card {
  border-radius: 14px; overflow: hidden; background: var(--card);
  border: 1px solid var(--line); display: flex; flex-direction: column;
}
.drama-card figure { position: relative; }
.drama-card img { width: 100%; aspect-ratio: 3/4; object-fit: cover; }
.drama-score {
  position: absolute; top: 10px; right: 10px;
  background: rgba(0,0,0,0.7); color: var(--accent);
  font-size: 12px; font-weight: 700; padding: 3px 9px; border-radius: 999px;
}
.drama-body { padding: 14px; }
.drama-body h3 { font-size: 15.5px; font-weight: 700; margin-bottom: 6px; }
.drama-body p { font-size: 13px; color: var(--muted); }
.drama-meta { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.drama-meta span {
  font-size: 11.5px; padding: 3px 9px; border-radius: 999px;
  background: rgba(255,200,71,0.1); color: var(--accent); border: 1px solid rgba(255,200,71,0.25);
}
.drama-date { margin-top: 10px; font-size: 12px; color: #7f869c; }

/* ===== 安装步骤 ===== */
.steps { display: grid; gap: 14px; counter-reset: step; }
.step {
  position: relative; padding: 20px 18px 20px 62px;
  background: var(--card); border: 1px solid var(--line);
  border-radius: 14px; counter-increment: step;
}
.step::before {
  content: counter(step, decimal-leading-zero);
  position: absolute; left: 18px; top: 20px;
  font-size: 15px; font-weight: 800; color: var(--accent);
}
.step h3 { font-size: 15px; font-weight: 700; margin-bottom: 5px; }
.step p { font-size: 13.5px; color: var(--muted); }

/* ===== 常见问题 ===== */
.faq-list { display: grid; gap: 10px; }
.faq-list details {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 12px; padding: 4px 18px;
}
.faq-list summary {
  cursor: pointer; padding: 14px 0; font-size: 14.5px; font-weight: 600;
  list-style: none; display: flex; justify-content: space-between; gap: 12px;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; color: var(--accent); font-weight: 700; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { font-size: 13.5px; color: var(--muted); padding: 0 0 16px; }

/* ===== 用户热评 ===== */
.comment-wall { display: grid; gap: 14px; grid-template-columns: 1fr; }
.comment {
  background: linear-gradient(160deg, rgba(255,200,71,0.07), transparent 60%), var(--card);
  border: 1px solid var(--line); border-radius: 14px; padding: 18px;
}
.comment .q { font-size: 14.5px; font-weight: 700; margin-bottom: 8px; }
.comment .q::before { content: "问 "; color: var(--accent); font-weight: 800; }
.comment .a { font-size: 13.5px; color: var(--muted); }
.comment .a::before { content: "答 "; color: var(--accent-2); font-weight: 800; }
.comment .who { margin-top: 10px; font-size: 12px; color: #7f869c; }

/* ===== 隐私安全 ===== */
.privacy-grid { display: grid; gap: 14px; grid-template-columns: 1fr; }
.privacy-item {
  padding: 18px; border-radius: 14px;
  border: 1px dashed rgba(255,200,71,0.28); background: rgba(255,200,71,0.04);
}
.privacy-item h3 { font-size: 15px; margin-bottom: 6px; color: var(--accent); }
.privacy-item p { font-size: 13.5px; color: var(--muted); }

/* ===== 创作者计划 ===== */
.creator-panel {
  border-radius: 18px; padding: 26px 22px;
  background: linear-gradient(135deg, rgba(255,122,69,0.14), rgba(255,200,71,0.06));
  border: 1px solid rgba(255,200,71,0.22);
}
.creator-list { display: grid; gap: 12px; margin-top: 18px; }
.creator-list li {
  list-style: none; display: flex; gap: 10px; font-size: 14px; color: #d5d8e4;
}
.creator-list li::before { content: "◆"; color: var(--accent); font-size: 11px; line-height: 1.9; }

/* ===== 交流社区 ===== */
.community { display: grid; gap: 14px; }
.community-card {
  padding: 20px 18px; border-radius: 14px;
  background: var(--card); border: 1px solid var(--line);
  display: flex; gap: 14px; align-items: flex-start;
}
.community-card .icon {
  flex: none; width: 40px; height: 40px; border-radius: 12px;
  background: var(--grad); color: #1a1200; font-weight: 800;
  display: flex; align-items: center; justify-content: center; font-size: 15px;
}
.community-card h3 { font-size: 15px; margin-bottom: 4px; }
.community-card p { font-size: 13.5px; color: var(--muted); }

/* ===== 截图墙 ===== */
.shot-wall { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.shot-wall img { width: 100%; aspect-ratio: 3/4; object-fit: cover; border-radius: 12px; border: 1px solid var(--line); }

/* ===== 最终下载 ===== */
.final-cta {
  padding: 56px 0 64px;
  background:
    radial-gradient(circle at 50% 0%, rgba(255,200,71,0.16), transparent 55%),
    linear-gradient(180deg, #12141d, #0b0c10);
}
.cta-box {
  border-radius: 20px; padding: 30px 22px; text-align: center;
  background: linear-gradient(150deg, rgba(255,200,71,0.1), rgba(255,122,69,0.05));
  border: 1px solid rgba(255,200,71,0.22);
}
.cta-box h2 { font-size: 22px; font-weight: 800; }
.cta-box p { margin-top: 12px; color: var(--muted); font-size: 14.5px; }
.cta-box .download-row { justify-content: center; margin-top: 24px; }
.cta-note { margin-top: 16px; font-size: 12.5px; color: #7f869c; }

/* ===== Footer ===== */
.site-footer { padding: 32px 0 40px; border-top: 1px solid var(--line); }
.footer-inner { display: flex; flex-direction: column; gap: 8px; font-size: 12.5px; color: #6f7689; }
.site-footer a { color: #8b92a6; }
.site-footer a:hover { color: var(--accent); }
.site-footer time { color: #6f7689; }

/* ===== Responsive ===== */
@media (min-width: 768px) {
  .main-nav { display: flex; }
  .nav-toggle { display: none; }
  .hero { padding: 76px 0 84px; }
  .hero h1 { font-size: 40px; }
  .hero-grid { grid-template-columns: 1.05fr 0.95fr; }
  .section { padding: 80px 0; }
  .section-head h2 { font-size: 30px; }
  .ai-layout { grid-template-columns: 0.9fr 1.1fr; align-items: stretch; }
  .ai-cards { grid-template-columns: repeat(2, 1fr); }
  .drama-grid { grid-template-columns: repeat(3, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .comment-wall { grid-template-columns: repeat(2, 1fr); }
  .privacy-grid { grid-template-columns: repeat(2, 1fr); }
  .community { grid-template-columns: repeat(2, 1fr); }
  .shot-wall { grid-template-columns: repeat(4, 1fr); }
  .cta-box { padding: 44px 36px; }
  .cta-box h2 { font-size: 28px; }
  .footer-inner { flex-direction: row; justify-content: space-between; align-items: center; }
}
@media (min-width: 1024px) {
  .hero h1 { font-size: 46px; }
  .drama-grid { grid-template-columns: repeat(4, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .comment-wall { grid-template-columns: repeat(3, 1fr); }
  .privacy-grid { grid-template-columns: repeat(3, 1fr); }
  .community { grid-template-columns: repeat(3, 1fr); }
  .ai-cards { grid-template-columns: repeat(2, 1fr); }
  .creator-list { grid-template-columns: repeat(2, 1fr); display: grid; }
}