/* ===== 首页专属样式 ===== */

/* Hero — 视频背景 + 降级渐变 */
.hero{position:relative;padding:148px 0 96px;overflow:hidden;isolation:isolate}
.hero-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:1;opacity:0;transition:opacity 600ms var(--ease)}
.hero-video.loaded{opacity:1}
/* 视频不可用时显示的降级渐变底图 */
.hero-fallback{position:absolute;inset:0;z-index:0;background:radial-gradient(1200px 600px at 50% 18%,rgba(16,185,129,.18),transparent 60%),radial-gradient(900px 500px at 82% 44%,rgba(59,130,246,.16),transparent 60%),radial-gradient(700px 460px at 12% 60%,rgba(139,92,246,.14),transparent 58%),linear-gradient(160deg,#0F122B 0%,#111638 55%,#0E1126 100%)}
.hero-glow{position:absolute;inset:0;background:radial-gradient(900px 420px at 22% 30%,rgba(16,185,129,.14),transparent 60%);z-index:1;pointer-events:none}
/* 半透明遮罩：保证文字可读性，同时保留视频科技质感 */
.hero::after{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,rgba(14,17,38,.55) 0%,rgba(14,17,38,.35) 45%,rgba(14,17,38,.7) 100%);pointer-events:none}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{margin-bottom:20px}
.hero-sub{font-size:18px;max-width:520px;margin-bottom:30px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:22px}
.hero-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;color:var(--text-dim);font-size:14px}
.hero-meta .sep{opacity:.5}
.hero-visual{display:flex;justify-content:flex-end}
.mock{width:100%;max-width:460px;background:linear-gradient(180deg,rgba(22,27,53,.92),rgba(17,20,40,.92));border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;box-shadow:0 30px 80px rgba(8,11,30,.55),0 0 0 1px rgba(59,130,246,.08) inset}
.mock-bar{display:flex;align-items:center;gap:6px;padding:12px 14px;border-bottom:1px solid var(--border);font-size:12px;color:var(--text-dim)}
.mock-bar i{width:10px;height:10px;border-radius:50%;background:#2a2a3a;display:inline-block}
.mock-bar i:nth-child(1){background:#ef4444}.mock-bar i:nth-child(2){background:#eab308}.mock-bar i:nth-child(3){background:#22c55e}
.mock-bar span{margin-left:auto;font-family:ui-monospace,monospace}
.mock-body{padding:18px;display:flex;flex-direction:column;gap:14px}
.mock-row{display:flex;gap:10px;font-size:14px;line-height:1.5}
.mock-row.user{justify-content:flex-end}
.mock-row.user span{background:var(--accent-soft);color:#dbeafe;border:1px solid rgba(59,130,246,.3);padding:10px 14px;border-radius:14px 14px 4px 14px;max-width:88%}
.mock-row.ai{align-items:flex-start}
.mock-row.ai .ai-dot{width:26px;height:26px;border-radius:8px;background:linear-gradient(135deg,var(--primary),var(--accent));flex:none;display:grid;place-items:center;color:#fff;font-size:13px;font-weight:800}
.mock-row.ai>div{flex:1;background:var(--bg2);border:1px solid var(--border);padding:12px 14px;border-radius:14px 14px 14px 4px}
.mock-chart{display:flex;align-items:flex-end;gap:8px;height:46px;margin:8px 0}
.mock-chart span{flex:1;background:linear-gradient(180deg,var(--primary),rgba(16,185,129,.3));border-radius:5px 5px 2px 2px;height:var(--w)}
.mock-row.ai small{color:var(--text-dim);font-size:12px}
.scroll-indicator{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);width:24px;height:40px;border:2px solid var(--border);border-radius:14px;display:grid;place-items:flex-start;padding:6px}
.scroll-indicator span{width:4px;height:8px;background:var(--primary);border-radius:2px;animation:scroll 1.6s var(--ease) infinite}
@keyframes scroll{0%{transform:translateY(0);opacity:1}100%{transform:translateY(14px);opacity:0}}

/* 信任墙 */
.trust{background:linear-gradient(180deg,transparent,rgba(15,118,110,.04))}
.logos{display:grid;grid-template-columns:repeat(8,1fr);gap:10px;margin-bottom:52px}
.logo{height:60px;border:1px solid var(--border);border-radius:var(--r);display:grid;place-items:center;color:var(--text-dim);font-size:14px;font-weight:600;background:var(--bg2);filter:grayscale(1);transition:filter var(--t),color var(--t),border-color var(--t)}
.logo:hover{filter:none;color:var(--primary);border-color:var(--primary)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stat{padding:18px;border:1px solid var(--border-soft);border-radius:var(--r-lg);background:var(--bg2)}
.stat-num{font-size:38px;font-weight:700;color:var(--primary);line-height:1.1}
.stat-label{font-size:14px;color:var(--text-dim);margin-top:6px}

/* 功能卡 */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feat{display:flex;flex-direction:column;gap:10px;text-decoration:none;color:inherit}
.feat-icon{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;font-size:22px;background:color-mix(in oklab,var(--c) 16%,transparent);border:1px solid color-mix(in oklab,var(--c) 30%,transparent);color:var(--c)}
.feat h3{font-size:19px}
.card-link{margin-top:auto;color:var(--primary);font-size:14px;font-weight:600}

/* 为什么选星枢智端 */
.why{background:linear-gradient(180deg,rgba(15,118,110,.04),transparent)}
.why-grid .why-item{display:flex;flex-direction:column;gap:10px}
.why-icon{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;font-size:22px;background:color-mix(in oklab,var(--c) 16%,transparent);border:1px solid color-mix(in oklab,var(--c) 30%,transparent);color:var(--c)}
.why-item h3{font-size:18px}
.why-item p{font-size:14px}

/* 场景 */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.scene{padding:0;overflow:hidden}
.scene-img{height:170px;position:relative;overflow:hidden;background:var(--g,var(--bg2))}
.scene-img img{width:100%;height:100%;object-fit:cover;display:block;transition:transform 600ms var(--ease)}
.scene:hover .scene-img img{transform:scale(1.05)}
.scene-body{padding:22px}
.scene-body h3{font-size:19px;margin-bottom:8px}

/* 评价 */
.stars{color:#f59e0b;letter-spacing:2px;margin-bottom:10px;font-size:15px}
.review-text{font-size:15px;margin-bottom:18px;flex:1}
.reviewer{display:flex;align-items:center;gap:12px}
.avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--purple));display:grid;place-items:center;color:#fff;font-weight:700}
.reviewer small{display:block;color:var(--text-dim);font-size:12px}
.review{display:flex;flex-direction:column}

/* 价格 */
.price-grid .plan{display:flex;flex-direction:column;gap:14px;position:relative}
.plan h3{font-size:20px}
.price{display:flex;align-items:baseline;gap:6px}
.price .num{font-size:34px;font-weight:700;color:var(--text)}
.price small{color:var(--text-dim)}
.checks{display:flex;flex-direction:column;gap:9px;margin:4px 0 8px}
.checks li{position:relative;padding-left:24px;font-size:14px;color:var(--text-dim)}
.checks li::before{content:"✓";position:absolute;left:0;color:var(--primary);font-weight:700}
.plan.recommended{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.badge{position:absolute;top:16px;right:16px;background:var(--accent);color:#fff;font-size:11px;font-weight:700;padding:4px 9px;border-radius:999px}

/* 博客 */
.post{display:flex;flex-direction:column;padding:0;overflow:hidden;text-decoration:none;color:inherit}
.post-cover{height:150px;display:grid;place-items:center;font-size:46px;background:var(--g,var(--bg2))}
.post-body{padding:20px;display:flex;flex-direction:column;gap:8px}
.post-cat{font-size:12px;color:var(--primary);font-weight:600;letter-spacing:.04em}
.post-body h3{font-size:18px}
.post-body p{font-size:14px}
.post-body small{color:var(--text-dim);font-size:12px;margin-top:auto}

/* CTA */
.cta{background:linear-gradient(135deg,#1e3a5f,#312e81);border:1px solid var(--border);border-radius:var(--r-lg);padding:60px 30px;text-align:center}
.cta h2{font-size:34px;margin-bottom:14px}
.cta p{margin-bottom:26px;max-width:560px;margin-left:auto;margin-right:auto}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* 响应式 */
@media(max-width:1023px){
  .hero-inner{grid-template-columns:1fr;gap:40px}.hero-visual{justify-content:center}
  .logos{grid-template-columns:repeat(4,1fr)}.stats{grid-template-columns:repeat(2,1fr)}
  .grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .hero{padding:120px 0 60px}.logos{grid-template-columns:repeat(3,1fr)}.logos{margin-bottom:36px}
  .stats{grid-template-columns:1fr 1fr;gap:12px}.stat-num{font-size:30px}
  .grid-4{grid-template-columns:1fr}.grid-3{grid-template-columns:1fr}
  .cta{padding:44px 20px}.cta h2{font-size:26px}
}