:root {
  --bg: #0a0c10;
  --bg-alt: #0f1218;
  --panel: #151a22;
  --panel-hover: #1c232e;
  --text: #eef2f7;
  --text-dim: #8a95a6;
  --primary: #ff5c3d;
  --primary-glow: rgba(255, 92, 61, 0.4);
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 92, 61, 0.5);
  --radius: 16px;
  --radius-sm: 10px;
  --container: 1200px;
  --shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body.landing-shell {
  background-color: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; border-radius: var(--radius-sm); background-color: var(--panel); }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
.hg-page { position: relative; overflow: hidden; min-height: 100vh; }
.hg-wrap { max-width: var(--container); margin: 0 auto; padding: 0 24px; position: relative; z-index: 2; }
.hg-narrow { max-width: 800px; margin: 0 auto; }
.hg-center { text-align: center; }

/* 光晕 */
.hg-glow { position: absolute; border-radius: 50%; filter: blur(120px); opacity: 0.35; pointer-events: none; z-index: 0; }
.hg-glow-a { width: 600px; height: 600px; background: #ff5c3d; top: -200px; left: -100px; }
.hg-glow-b { width: 500px; height: 500px; background: #3d5cff; top: 30%; right: -200px; opacity: 0.25; }
.hg-glow-c { width: 400px; height: 400px; background: #8a2be2; bottom: 10%; left: 20%; opacity: 0.2; }

/* 导航 */
.hg-nav {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 100;
  background: rgba(10, 12, 16, 0.6); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border); transition: background 0.3s, box-shadow 0.3s;
}
.hg-nav.is-scrolled { background: rgba(10, 12, 16, 0.9); box-shadow: 0 4px 20px rgba(0,0,0,0.5); }
.hg-nav-inner { display: flex; justify-content: space-between; align-items: center; height: 68px; }
.hg-brand { display: flex; align-items: center; gap: 10px; }
.hg-brand img { height: 32px; border-radius: 8px; }
.hg-brand strong { font-size: 18px; font-weight: 700; letter-spacing: 0.5px; }
.hg-links { display: flex; gap: 24px; }
.hg-links a { color: var(--text-dim); font-size: 14px; transition: color 0.2s; }
.hg-links a:hover { color: var(--primary); }
.hg-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 24px; border-radius: 100px; font-weight: 600; font-size: 15px;
  transition: transform 0.2s, background 0.2s, box-shadow 0.2s; border: none; cursor: pointer;
}
.hg-btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 16px var(--primary-glow); }
.hg-btn-primary:hover { background: #ff7055; transform: translateY(-2px); }
.hg-btn-ghost { background: transparent; border: 1px solid var(--border); color: var(--text); }
.hg-btn-ghost:hover { border-color: var(--primary); color: var(--primary); }
.hg-btn-small { padding: 8px 18px; font-size: 14px; }

/* Hero */
.hg-hero { padding: 140px 0 80px; }
.hg-hero .hg-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.hg-chip {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px;
  background: rgba(255, 255, 255, 0.05); border: 1px solid var(--border);
  border-radius: 100px; font-size: 13px; color: var(--text-dim); margin-bottom: 20px;
}
.hg-chip i { display: block; width: 6px; height: 6px; background: var(--primary); border-radius: 50%; box-shadow: 0 0 8px var(--primary); }
.hg-hero h1 { font-size: 56px; line-height: 1.15; font-weight: 800; margin-bottom: 20px; letter-spacing: -1px; }
.hg-hero h1 em { font-style: normal; color: var(--primary); }
.hg-lead { font-size: 17px; color: var(--text-dim); margin-bottom: 32px; max-width: 480px; }
.hg-actions { display: flex; gap: 16px; margin-bottom: 20px; }
.hg-actions .hg-btn { flex-direction: column; gap: 2px; padding: 14px 28px; }
.hg-actions small { font-size: 11px; font-weight: 400; opacity: 0.8; }
.hg-tip { font-size: 13px; color: var(--text-dim); }

/* Morph 面板 */
.hg-morph { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.hg-tabs { display: flex; gap: 12px; margin-bottom: 24px; }
.hg-tab {
  flex: 1; display: flex; flex-direction: column; align-items: flex-start; gap: 4px;
  padding: 12px 16px; background: transparent; border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-dim); cursor: pointer; transition: all 0.2s;
}
.hg-tab.is-active { background: rgba(255, 92, 61, 0.1); border-color: var(--primary); color: var(--text); }
.hg-tab span { font-size: 18px; }
.hg-tab b { font-size: 14px; font-weight: 600; }
.hg-tab small { font-size: 11px; opacity: 0.7; }
.hg-morph-body { position: relative; min-height: 400px; }
.hg-panel { display: none; }
.hg-panel.is-active { display: block; animation: fadeIn 0.4s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.hg-panel-head { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 20px; }
.hg-panel-head h2 { font-size: 22px; margin-bottom: 4px; }
.hg-panel-head p { font-size: 13px; color: var(--text-dim); }
.hg-panel-stats { display: flex; gap: 24px; }
.hg-panel-stats b { display: block; font-size: 20px; color: var(--primary); }
.hg-panel-stats small { font-size: 12px; color: var(--text-dim); }
.hg-card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.hg-card { position: relative; background: var(--bg-alt); border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; transition: transform 0.2s, border-color 0.2s; cursor: pointer; }
.hg-card:hover { transform: translateY(-4px); border-color: var(--border-hover); }
.hg-badge { position: absolute; top: 8px; left: 8px; background: var(--primary); color: #fff; font-size: 10px; padding: 2px 6px; border-radius: 4px; font-weight: 600; z-index: 2; }
.hg-eps { position: absolute; top: 8px; right: 8px; background: rgba(0,0,0,0.7); color: #fff; font-size: 10px; padding: 2px 6px; border-radius: 4px; z-index: 2; }
.hg-cover { position: relative; aspect-ratio: 3/4; overflow: hidden; }
.hg-cover img { width: 100%; height: 100%; object-fit: cover; border-radius: 0; }
.hg-cover span { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 36px; height: 36px; background: rgba(255, 92, 61, 0.9); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; opacity: 0; transition: opacity 0.2s; font-size: 14px; }
.hg-card:hover .hg-cover span { opacity: 1; }
.hg-card-body { padding: 10px 12px; }
.hg-card-body h4 { font-size: 14px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-bottom: 6px; }
.hg-card-body div { display: flex; justify-content: space-between; align-items: center; }
.hg-tag { font-size: 10px; color: var(--text-dim); background: rgba(255,255,255,0.05); padding: 2px 6px; border-radius: 4px; }
.hg-card-body strong { font-size: 12px; color: var(--primary); }

.hg-stat-panel { display: flex; justify-content: space-around; background: var(--bg-alt); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; margin-top: 60px; flex-wrap: wrap; gap: 20px; }
.hg-stat-panel div { text-align: center; }
.hg-stat-panel b { display: block; font-size: 28px; color: var(--primary); font-weight: 800; margin-bottom: 4px; }
.hg-stat-panel span { font-size: 13px; color: var(--text-dim); }

/* 通用板块 */
.hg-band { padding: 100px 0; position: relative; }
.hg-band-alt { background: rgba(255, 255, 255, 0.015); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.hg-section-head { margin-bottom: 48px; }
.hg-kicker { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: 2px; color: var(--primary); text-transform: uppercase; margin-bottom: 12px; }
.hg-section-head h2 { font-size: 36px; font-weight: 800; margin-bottom: 16px; }
.hg-section-head h2 em { font-style: normal; color: var(--primary); }
.hg-section-head p { color: var(--text-dim); max-width: 600px; font-size: 16px; }
.hg-center p { margin: 0 auto; }

/* Remix */
.hg-remix { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hg-remix h2 { font-size: 40px; font-weight: 800; margin-bottom: 16px; line-height: 1.2; }
.hg-remix h2 em { font-style: normal; color: var(--primary); }
.hg-remix p { color: var(--text-dim); margin-bottom: 32px; font-size: 16px; }
.hg-remix ul { display: flex; flex-direction: column; gap: 20px; }
.hg-remix li { display: flex; align-items: flex-start; gap: 16px; }
.hg-remix li i { flex-shrink: 0; width: 28px; height: 28px; background: var(--primary); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-style: normal; font-weight: 700; font-size: 14px; margin-top: 2px; }
.hg-remix li span { font-size: 15px; color: var(--text-dim); line-height: 1.5; }
.hg-remix li b { color: var(--text); display: block; margin-bottom: 2px; }
.hg-compare { position: relative; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); aspect-ratio: 4/3; user-select: none; touch-action: none; }
.hg-before, .hg-after { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; border-radius: 0; pointer-events: none; }
.hg-after { clip-path: inset(0 0 0 50%); }
.hg-compare-label { position: absolute; top: 16px; padding: 4px 10px; background: rgba(0,0,0,0.6); backdrop-filter: blur(4px); border-radius: 4px; font-size: 12px; z-index: 10; color: #fff; }
.hg-label-before { left: 16px; }
.hg-label-after { right: 16px; }
.hg-divider { position: absolute; top: 0; bottom: 0; left: 50%; width: 2px; background: #fff; box-shadow: 0 0 10px rgba(0,0,0,0.5); z-index: 9; transform: translateX(-50%); pointer-events: none; }
.hg-handle { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 40px; height: 40px; border-radius: 50%; background: #fff; color: #000; border: none; font-size: 18px; display: flex; align-items: center; justify-content: center; cursor: ew-resize; z-index: 11; box-shadow: 0 4px 12px rgba(0,0,0,0.3); }

/* AI Pipeline */
.hg-pipeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.hg-pipeline article { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px 24px; transition: transform 0.2s; }
.hg-pipeline article:hover { transform: translateY(-4px); border-color: var(--border-hover); }
.hg-pipeline i { display: block; font-size: 32px; font-weight: 800; color: var(--primary); font-style: normal; margin-bottom: 16px; opacity: 0.8; }
.hg-pipeline h3 { font-size: 18px; margin-bottom: 12px; }
.hg-pipeline p { font-size: 14px; color: var(--text-dim); line-height: 1.6; }

/* Ranking */
.hg-ranking { display: flex; flex-direction: column; }
.hg-ranking article { display: grid; grid-template-columns: 50px 80px 1fr auto auto; align-items: center; gap: 20px; padding: 16px 0; border-bottom: 1px solid var(--border); transition: background 0.2s; }
.hg-ranking article:hover { background: rgba(255,255,255,0.02); }
.hg-ranking article:last-child { border-bottom: none; }
.hg-rank-no { font-size: 24px; font-weight: 800; color: var(--text-dim); font-style: italic; font-family: monospace; }
.hg-ranking article:nth-child(-n+3) .hg-rank-no { color: var(--primary); }
.hg-ranking img { width: 80px; height: 60px; object-fit: cover; border-radius: 8px; }
.hg-ranking h4 { font-size: 16px; margin-bottom: 4px; }
.hg-ranking p { font-size: 13px; color: var(--text-dim); }
.hg-kind { font-size: 12px; padding: 4px 10px; border-radius: 4px; background: rgba(255,255,255,0.05); color: var(--text-dim); }
.hg-kind.real { background: rgba(255, 92, 61, 0.15); color: #ff8a6d; }
.hg-kind.ai { background: rgba(61, 92, 255, 0.15); color: #7d9bff; }
.hg-kind.mix { background: rgba(138, 43, 226, 0.15); color: #b88aff; }
.hg-ranking strong { font-size: 16px; color: var(--primary); font-weight: 700; }

/* Lists */
.hg-lists { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.hg-lists article { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: transform 0.2s; }
.hg-lists article:hover { transform: translateY(-4px); border-color: var(--border-hover); }
.hg-list-cover { position: relative; aspect-ratio: 16/9; }
.hg-list-cover img { width: 100%; height: 100%; object-fit: cover; border-radius: 0; }
.hg-list-cover span { position: absolute; bottom: 12px; right: 12px; background: rgba(0,0,0,0.7); backdrop-filter: blur(4px); font-size: 12px; padding: 4px 10px; border-radius: 4px; color: #fff; }
.hg-lists article > div:last-child { padding: 20px; }
.hg-lists small { color: var(--primary); font-size: 12px; font-weight: 600; display: block; margin-bottom: 8px; }
.hg-lists h4 { font-size: 20px; margin-bottom: 8px; }
.hg-lists p { font-size: 14px; color: var(--text-dim); margin-bottom: 16px; }
.hg-list-names { display: flex; flex-wrap: wrap; gap: 8px; }
.hg-list-names span { font-size: 12px; color: var(--text-dim); background: rgba(255,255,255,0.05); padding: 4px 10px; border-radius: 4px; }

/* Voices */
.hg-danmu { margin-bottom: 48px; overflow: hidden; display: flex; flex-direction: column; gap: 12px; -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.hg-danmu-track { display: flex; gap: 16px; white-space: nowrap; width: max-content; }
.hg-danmu-track span { display: inline-block; padding: 6px 16px; background: var(--panel); border: 1px solid var(--border); border-radius: 100px; font-size: 13px; color: var(--text-dim); }
.hg-track-one { animation: scrollLeft 40s linear infinite; }
.hg-track-two { animation: scrollRight 45s linear infinite; }
@keyframes scrollLeft { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@keyframes scrollRight { from { transform: translateX(-50%); } to { transform: translateX(0); } }
@media (prefers-reduced-motion: reduce) { .hg-danmu-track { animation: none; } }
.hg-voices { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.hg-voices article { display: flex; gap: 16px; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.hg-avatar { width: 48px; height: 48px; flex-shrink: 0; border-radius: 50%; overflow: hidden; }
.hg-avatar img { width: 100%; height: 100%; object-fit: cover; }
.hg-voices b { display: block; color: #ffb703; font-size: 14px; margin-bottom: 4px; }
.hg-voices p { font-size: 14px; color: var(--text-dim); margin-bottom: 8px; line-height: 1.5; }
.hg-voices small { font-size: 12px; color: #5b6577; }

/* FAQ */
.hg-faq { display: flex; flex-direction: column; gap: 12px; }
.hg-faq details { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; }
.hg-faq summary { display: flex; align-items: center; padding: 20px 24px; cursor: pointer; list-style: none; font-size: 16px; font-weight: 500; }
.hg-faq summary::-webkit-details-marker { display: none; }
.hg-faq summary span { color: var(--primary); font-weight: 700; margin-right: 16px; font-family: monospace; }
.hg-faq summary b { flex: 1; }
.hg-faq summary i { font-style: normal; color: var(--text-dim); transition: transform 0.2s; }
.hg-faq details[open] summary i { transform: rotate(180deg); }
.hg-faq details p { padding: 0 24px 20px 56px; color: var(--text-dim); font-size: 14px; }
.hg-faq-more { text-align: center; margin-top: 24px; }
.hg-faq-more a { color: var(--primary); font-size: 14px; font-weight: 600; }
.hg-faq-more a:hover { text-decoration: underline; }

/* Download */
.hg-download { background: linear-gradient(180deg, rgba(255, 92, 61, 0.05) 0%, rgba(10, 12, 16, 0) 100%); border-top: 1px solid var(--border); }
.hg-download-inner { text-align: center; }
.hg-download h2 { font-size: 42px; font-weight: 800; margin-bottom: 16px; }
.hg-download h2 em { font-style: normal; color: var(--primary); }
.hg-download .hg-lead { margin: 0 auto 32px; }
.hg-perks { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-bottom: 40px; }
.hg-perks span { padding: 6px 16px; background: var(--panel); border: 1px solid var(--border); border-radius: 100px; font-size: 13px; color: var(--text); }
.hg-download-box { display: flex; align-items: center; gap: 24px; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; max-width: 800px; margin: 0 auto 48px; text-align: left; box-shadow: var(--shadow); }
.hg-phone { font-size: 40px; color: var(--primary); }
.hg-download-box div { flex: 1; }
.hg-download-box h4 { font-size: 20px; margin-bottom: 4px; }
.hg-download-box p { font-size: 14px; color: var(--text-dim); }
.hg-download-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; max-width: 900px; margin: 0 auto; text-align: left; }
.hg-download-steps div { display: flex; gap: 16px; align-items: flex-start; }
.hg-download-steps i { flex-shrink: 0; width: 28px; height: 28px; background: rgba(255, 92, 61, 0.1); color: var(--primary); border: 1px solid var(--primary); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 14px; font-style: normal; }
.hg-download-steps span b { display: block; font-size: 15px; margin-bottom: 4px; }
.hg-download-steps span small { font-size: 13px; color: var(--text-dim); }

/* 页脚 */
.site-footer { background: var(--bg-alt); border-top: 1px solid var(--border); padding: 64px 0 32px; font-size: 14px; }
.shell { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-brand .brand-link { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.footer-brand .brand-link img { height: 36px; border-radius: 8px; }
.brand-copy strong { display: block; font-size: 18px; color: var(--text); }
.brand-copy small { font-size: 12px; color: var(--text-dim); }
.footer-brand p { color: var(--text-dim); line-height: 1.6; max-width: 260px; }
.footer-col h5 { font-size: 15px; color: var(--text); margin-bottom: 20px; font-weight: 600; }
.footer-col a { display: block; color: var(--text-dim); margin-bottom: 12px; transition: color 0.2s; }
.footer-col a:hover { color: var(--primary); }
.footer-tags { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; border-top: 1px solid var(--border); padding-top: 24px; margin-bottom: 24px; }
.footer-tags strong { font-size: 14px; color: var(--text); margin-right: 8px; }
.footer-tags span { font-size: 12px; color: var(--text-dim); padding: 4px 12px; background: rgba(255,255,255,0.03); border-radius: 100px; }
.footer-legal { display: flex; flex-wrap: wrap; gap: 16px; color: #5b6577; font-size: 12px; border-top: 1px solid var(--border); padding-top: 24px; }
.footer-legal a { color: #5b6577; transition: color 0.2s; }
.footer-legal a:hover { color: var(--text-dim); }

/* 移动端下载条 */
.hg-mobile-download { display: none; position: fixed; bottom: 0; left: 0; width: 100%; padding: 12px 20px; background: rgba(10, 12, 16, 0.85); backdrop-filter: blur(12px); border-top: 1px solid var(--border); z-index: 99; text-align: center; color: #fff; font-weight: 600; background-color: var(--primary); }

/* 响应式 */
@media (max-width: 1200px) {
  .hg-hero .hg-wrap { grid-template-columns: 1fr; gap: 40px; }
  .hg-card-grid { grid-template-columns: repeat(2, 1fr); }
  .hg-pipeline { grid-template-columns: repeat(2, 1fr); }
  .hg-voices { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: repeat(3, 1fr); }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 900px) {
  .hg-links { display: none; }
  .hg-remix { grid-template-columns: 1fr; gap: 40px; }
  .hg-lists { grid-template-columns: 1fr; }
  .hg-ranking article { grid-template-columns: 40px 60px 1fr auto; gap: 12px; }
  .hg-ranking strong { display: none; }
  .hg-hero h1 { font-size: 40px; }
}
@media (max-width: 640px) {
  .hg-card-grid { grid-template-columns: repeat(2, 1fr); }
  .hg-hero h1 { font-size: 32px; }
  .hg-hero .hg-actions { flex-direction: column; }
  .hg-actions .hg-btn { width: 100%; }
  .hg-download-box { flex-direction: column; text-align: center; }
  .hg-download-steps { grid-template-columns: 1fr; }
  .hg-voices { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .hg-mobile-download { display: block; }
  .hg-nav .hg-btn-small { display: none; }
  .hg-rank-no { display: none; }
  .site-footer { padding-bottom: 80px; }
}