:root {
  --bg-deep: #080a10;
  --bg-panel: #11141d;
  --bg-card: #1a1e2b;
  --text-main: #eef1f7;
  --text-sub: #9aa4b8;
  --accent: #ff5a3c;
  --accent-glow: rgba(255, 90, 60, 0.35);
  --accent-2: #ffb03c;
  --line: rgba(255, 255, 255, 0.08);
  --radius: 14px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background:
    radial-gradient(circle at 12% 0%, rgba(255, 90, 60, 0.14), transparent 42%),
    radial-gradient(circle at 88% 12%, rgba(110, 80, 255, 0.16), transparent 45%),
    var(--bg-deep);
  color: var(--text-main);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
.wrap { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(8, 10, 16, 0.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 66px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand img { height: 34px; width: 34px; border-radius: 9px; object-fit: cover; }
.brand-name { font-size: 19px; font-weight: 800; letter-spacing: 0.5px; }
.brand-name em { font-style: normal; color: var(--accent); }
.nav-toggle {
  display: none; background: none; border: 1px solid var(--line);
  color: var(--text-main); border-radius: 8px; padding: 6px 12px; font-size: 14px;
}
.main-nav ul { display: flex; flex-wrap: wrap; gap: 6px 18px; list-style: none; }
.main-nav a { font-size: 14px; color: var(--text-sub); transition: color .2s; }
.main-nav a:hover { color: var(--accent-2); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 24px; border-radius: 999px; font-size: 15px; font-weight: 700;
  border: 1px solid transparent; transition: transform .2s, box-shadow .2s, background .2s;
  cursor: pointer;
}
.btn-primary {
  background: linear-gradient(120deg, #ff6a3c, #ff3d6e);
  color: #fff; box-shadow: 0 8px 26px var(--accent-glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 32px var(--accent-glow); }
.btn-ghost {
  background: rgba(255, 255, 255, 0.05); color: var(--text-main);
  border-color: rgba(255, 255, 255, 0.16);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.11); transform: translateY(-2px); }
.btn-sm { padding: 9px 18px; font-size: 13px; }

/* Hero */
.hero { position: relative; padding: 54px 0 64px; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -20% -10% auto -10%; height: 540px;
  background: radial-gradient(ellipse at 50% 0%, rgba(255, 90, 60, 0.2), transparent 65%);
  pointer-events: none;
}
.hero-inner {
  position: relative; display: grid; grid-template-columns: 1.05fr 0.95fr;
  gap: 40px; align-items: center;
}
.hero-tag {
  display: inline-block; font-size: 13px; color: var(--accent-2);
  border: 1px solid rgba(255, 176, 60, 0.35); background: rgba(255, 176, 60, 0.08);
  padding: 5px 14px; border-radius: 999px; margin-bottom: 18px;
}
.hero h1 {
  font-size: 40px; line-height: 1.28; font-weight: 900; letter-spacing: 1px; margin-bottom: 16px;
}
.hero h1 span {
  background: linear-gradient(100deg, #ffb03c, #ff5a3c 55%, #ff3d6e);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-desc { color: var(--text-sub); font-size: 16px; max-width: 520px; margin-bottom: 22px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 26px; }
.hero-points span {
  font-size: 13px; color: var(--text-main); background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line); border-radius: 8px; padding: 6px 12px;
}
.dl-group { display: flex; flex-wrap: wrap; gap: 12px; }
.dl-group .prefer { flex-shrink: 0; }

.hero-stage {
  position: relative; min-height: 430px;
}
.hero-stage .phone {
  position: absolute; width: 172px; border-radius: 16px; overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.55);
  background: var(--bg-card);
  transition: transform .5s ease;
}
.hero-stage .phone img { width: 100%; height: 244px; object-fit: cover; }
.hero-stage .phone:nth-child(1) { left: 0; top: 26px; transform: rotate(-7deg); }
.hero-stage .phone:nth-child(2) { left: 32%; top: 0; transform: rotate(2deg); z-index: 3; width: 182px; }
.hero-stage .phone:nth-child(2) img { height: 262px; }
.hero-stage .phone:nth-child(3) { right: 0; top: 38px; transform: rotate(8deg); }
.hero-stage .phone:nth-child(4) { left: 12%; bottom: -6px; transform: rotate(5deg); width: 138px; z-index: 2; }
.hero-stage .phone:nth-child(4) img { height: 190px; }
.hero-stage .phone:nth-child(5) { right: 6%; bottom: -2px; transform: rotate(-6deg); width: 138px; z-index: 2; }
.hero-stage .phone:nth-child(5) img { height: 190px; }
.hero-stage:hover .phone:nth-child(1) { transform: rotate(-9deg) translateY(-5px); }
.hero-stage:hover .phone:nth-child(3) { transform: rotate(10deg) translateY(-5px); }

/* Section common */
.section { padding: 56px 0; border-top: 1px solid var(--line); }
.section-head { margin-bottom: 26px; }
.section-head .kicker {
  font-size: 13px; letter-spacing: 2px; color: var(--accent-2); font-weight: 600;
  display: block; margin-bottom: 8px;
}
.section-head h2 { font-size: 27px; font-weight: 800; letter-spacing: 0.5px; }
.section-head p { color: var(--text-sub); font-size: 15px; margin-top: 8px; max-width: 680px; }

/* Update timeline */
.timeline { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.tl-item {
  position: relative; background: var(--bg-panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 18px 16px 16px; transition: border-color .2s, transform .2s;
}
.tl-item:hover { border-color: rgba(255, 90, 60, 0.45); transform: translateY(-3px); }
.tl-item .time {
  display: inline-block; font-size: 13px; font-weight: 800; color: var(--accent-2);
  background: rgba(255, 176, 60, 0.1); border-radius: 6px; padding: 3px 10px; margin-bottom: 10px;
}
.tl-item h3 { font-size: 16px; margin-bottom: 6px; }
.tl-item p { font-size: 13.5px; color: var(--text-sub); }
.tl-item .tags { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 6px; }
.tl-item .tags i {
  font-style: normal; font-size: 11.5px; color: #ffb9a5;
  background: rgba(255, 90, 60, 0.1); border-radius: 5px; padding: 2px 8px;
}

/* Rank list */
.rank-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.rank-card {
  display: flex; gap: 14px; background: var(--bg-panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 12px; align-items: center;
}
.rank-card .no {
  font-size: 22px; font-weight: 900; width: 34px; text-align: center; color: var(--accent);
  flex-shrink: 0;
}
.rank-card .thumb { width: 66px; height: 88px; border-radius: 9px; overflow: hidden; flex-shrink: 0; }
.rank-card .thumb img { width: 100%; height: 100%; object-fit: cover; }
.rank-card .info h3 { font-size: 15.5px; margin-bottom: 4px; }
.rank-card .info p { font-size: 13px; color: var(--text-sub); }
.rank-card .info .meta { font-size: 12px; color: #7f8aa1; margin-top: 4px; }

/* Poster wall */
.poster-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.poster-card {
  background: var(--bg-panel); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; transition: transform .2s, border-color .2s;
}
.poster-card:hover { transform: translateY(-4px); border-color: rgba(255, 90, 60, 0.4); }
.poster-card img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; }
.poster-card .body { padding: 10px 11px 12px; }
.poster-card h3 { font-size: 14px; margin-bottom: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.poster-card p { font-size: 12px; color: var(--text-sub); height: 34px; overflow: hidden; }
.poster-card .row { display: flex; justify-content: space-between; align-items: center; margin-top: 8px; }
.poster-card .chip { font-size: 11px; color: #ffb9a5; background: rgba(255, 90, 60, 0.12); border-radius: 4px; padding: 2px 7px; }
.poster-card .date { font-size: 11px; color: #7f8aa1; }

/* Genre */
.genre-layout { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.genre-card {
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.01));
  border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 16px;
}
.genre-card h3 { font-size: 16px; margin-bottom: 8px; color: var(--accent-2); }
.genre-card p { font-size: 13px; color: var(--text-sub); }
.genre-card ul { list-style: none; margin-top: 8px; }
.genre-card li { font-size: 12.5px; color: #c3cad8; padding-left: 12px; position: relative; }
.genre-card li::before { content: "·"; position: absolute; left: 0; color: var(--accent); }

/* Deep read Q&A */
.qa-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.qa-item { background: var(--bg-panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.qa-item h3 { font-size: 15.5px; margin-bottom: 8px; }
.qa-item h3::before { content: "问 "; color: var(--accent-2); font-weight: 800; }
.qa-item p { font-size: 13.5px; color: var(--text-sub); }
.qa-item p::before { content: "答 "; color: var(--accent); font-weight: 800; }

/* Feedback */
.feedback-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.fb-card { background: var(--bg-panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.fb-head { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.fb-head img { width: 36px; height: 36px; border-radius: 50%; object-fit: cover; }
.fb-head b { font-size: 14px; display: block; }
.fb-head span { font-size: 12px; color: #7f8aa1; }
.fb-card p { font-size: 13.5px; color: var(--text-sub); }

/* Privacy & Wish */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.panel {
  background: var(--bg-panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px;
}
.panel h3 { font-size: 17px; margin-bottom: 12px; color: var(--accent-2); }
.panel p { font-size: 13.5px; color: var(--text-sub); margin-bottom: 8px; }
.wish-list { list-style: none; }
.wish-list li {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 13.5px; padding: 8px 0; border-bottom: 1px dashed var(--line); color: var(--text-sub);
}
.wish-list li:last-child { border-bottom: none; }
.wish-list li b { color: var(--text-main); font-weight: 600; }
.wish-list li span { color: var(--accent-2); font-size: 12.5px; }

/* Platform news */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.news-card { background: var(--bg-panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.news-card .news-date { font-size: 12px; color: var(--accent-2); margin-bottom: 8px; }
.news-card h3 { font-size: 15px; margin-bottom: 6px; }
.news-card p { font-size: 13px; color: var(--text-sub); }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 22px; }
.step-item {
  background: linear-gradient(160deg, rgba(255, 90, 60, 0.1), rgba(255, 255, 255, 0.02));
  border: 1px solid var(--line); border-radius: var(--radius); padding: 18px;
}
.step-item .num {
  width: 30px; height: 30px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(120deg, #ff6a3c, #ff3d6e); font-weight: 800; font-size: 14px; margin-bottom: 10px;
}
.step-item h3 { font-size: 15px; margin-bottom: 6px; }
.step-item p { font-size: 13px; color: var(--text-sub); }

/* Download banner */
.download-banner {
  background:
    radial-gradient(circle at 20% 20%, rgba(255, 90, 60, 0.18), transparent 55%),
    radial-gradient(circle at 85% 80%, rgba(110, 80, 255, 0.18), transparent 55%),
    var(--bg-panel);
  border: 1px solid rgba(255, 90, 60, 0.25);
  border-radius: 20px; padding: 38px 26px; text-align: center;
}
.download-banner h2 { font-size: 26px; margin-bottom: 10px; }
.download-banner p { color: var(--text-sub); font-size: 15px; margin-bottom: 24px; }
.download-banner .dl-group { justify-content: center; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 30px 0 34px; margin-top: 20px; }
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; align-items: center; }
.footer-brand { font-size: 13px; color: #7f8aa1; max-width: 520px; }
.footer-meta { font-size: 12px; color: #6b7488; text-align: right; }
.footer-meta a { color: #8e97a9; }
.footer-meta a:hover { color: var(--accent-2); }
.footer-meta time { display: inline-block; }

/* Copy modal */
.copy-mask {
  position: fixed; inset: 0; background: rgba(0, 0, 0, 0.72); z-index: 100;
  display: none; align-items: center; justify-content: center; padding: 20px;
}
.copy-mask.show { display: flex; }
.copy-box {
  background: #171b26; border: 1px solid rgba(255, 255, 255, 0.12); border-radius: 16px;
  padding: 24px; max-width: 400px; width: 100%; text-align: center;
}
.copy-box p { font-size: 14.5px; line-height: 1.6; margin-bottom: 16px; color: var(--text-main); }
.copy-box .link-text {
  background: rgba(255, 255, 255, 0.06); border: 1px dashed rgba(255, 255, 255, 0.2);
  border-radius: 8px; padding: 10px; font-size: 13px; color: var(--accent-2);
  word-break: break-all; margin-bottom: 16px;
}
.copy-box .btn { width: 100%; }

/* Breakpoints */
@media (max-width: 1024px) {
  .hero h1 { font-size: 33px; }
  .hero-inner { grid-template-columns: 1fr; gap: 30px; }
  .hero-stage { min-height: 380px; max-width: 520px; margin: 0 auto; }
  .poster-grid { grid-template-columns: repeat(4, 1fr); }
  .genre-layout { grid-template-columns: repeat(2, 1fr); }
  .timeline { grid-template-columns: repeat(2, 1fr); }
  .feedback-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .header-inner { height: auto; padding: 12px 0; flex-wrap: wrap; }
  .nav-toggle { display: inline-block; }
  .main-nav { width: 100%; display: none; }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; gap: 0; }
  .main-nav li { padding: 9px 0; border-bottom: 1px solid var(--line); }
  .hero { padding: 34px 0 44px; }
  .hero h1 { font-size: 27px; }
  .hero-desc { font-size: 14.5px; }
  .hero-stage { min-height: 330px; }
  .hero-stage .phone { width: 128px; }
  .hero-stage .phone img { height: 182px; }
  .hero-stage .phone:nth-child(2) { width: 136px; }
  .hero-stage .phone:nth-child(2) img { height: 194px; }
  .hero-stage .phone:nth-child(4), .hero-stage .phone:nth-child(5) { width: 100px; }
  .hero-stage .phone:nth-child(4) img, .hero-stage .phone:nth-child(5) img { height: 140px; }
  .section { padding: 38px 0; }
  .section-head h2 { font-size: 22px; }
  .rank-grid { grid-template-columns: 1fr; }
  .poster-grid { grid-template-columns: repeat(2, 1fr); }
  .timeline { grid-template-columns: 1fr; }
  .qa-grid { grid-template-columns: 1fr; }
  .feedback-grid { grid-template-columns: 1fr; }
  .genre-layout { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .two-col { grid-template-columns: 1fr; }
  .dl-group .btn { flex: 1 1 100%; }
  .download-banner { padding: 28px 18px; }
  .download-banner h2 { font-size: 21px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-meta { text-align: left; }
}