:root{
  --bg:#1a0a12;--bg2:#2a1020;--card:rgba(255,255,255,.05);--border:rgba(244,63,94,.18);
  --text:#fff1f2;--muted:#fda4af;--rose:#f43f5e;--coral:#fb7185;--amber:#f59e0b;
  --grad:linear-gradient(135deg,#f43f5e,#f59e0b);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden;padding-bottom:78px}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
/* ===== Warm glow background ===== */
.bg-fx{position:fixed;inset:0;z-index:-1;overflow:hidden;background:radial-gradient(ellipse at 50% 0%,#3a1425 0%,#1a0a12 60%)}
.glow{position:absolute;border-radius:50%;filter:blur(80px);opacity:.3;animation:drift 18s ease-in-out infinite}
.glow.g1{width:520px;height:520px;background:#f43f5e;top:-120px;right:-100px}
.glow.g2{width:460px;height:460px;background:#f59e0b;top:35%;left:-120px;animation-delay:-6s}
.glow.g3{width:420px;height:420px;background:#fb7185;bottom:-100px;right:20%;animation-delay:-12s}
@keyframes drift{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-40px,30px) scale(1.1)}}
.particle{position:absolute;width:3px;height:3px;background:#fda4af;border-radius:50%;opacity:0;animation:rise linear infinite}
@keyframes rise{0%{transform:translateY(0);opacity:0}10%{opacity:.7}90%{opacity:.5}100%{transform:translateY(-110vh);opacity:0}}
.stars{position:absolute;inset:0;background-image:radial-gradient(1px 1px at 20% 30%,#fff,transparent),radial-gradient(1px 1px at 70% 60%,#f43f5e,transparent),radial-gradient(1px 1px at 40% 80%,#f59e0b,transparent),radial-gradient(1px 1px at 85% 20%,#fff,transparent);background-size:300px 300px;opacity:.5;animation:twinkle 4s ease-in-out infinite}
@keyframes twinkle{0%,100%{opacity:.3}50%{opacity:.7}}
/* ===== Layout ===== */
.wrap{max-width:1080px;margin:0 auto;padding:0 16px}
/* Nav */
.nav{position:sticky;top:0;z-index:100;background:rgba(26,10,18,.85);backdrop-filter:blur(16px);border-bottom:1px solid var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;max-width:1080px;margin:0 auto;gap:10px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;min-height:44px}
.brand img{width:32px;height:32px;border-radius:9px}
.nav-links{display:flex;gap:14px;align-items:center;margin:0 auto 0 6px}
.nav-links a{font-size:13px;color:var(--muted);line-height:1;display:inline-flex;align-items:center;min-height:44px}
.nav-links a:hover{color:var(--rose)}
.nav-cta{background:var(--grad);color:#fff;padding:13px 18px;border-radius:999px;font-size:14px;font-weight:600;white-space:nowrap;min-height:44px;display:inline-flex;align-items:center}
/* Hero */
.hero{padding:40px 0 30px;text-align:center}
.tag{display:inline-flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-bottom:18px}
.tag span{font-size:12px;padding:6px 14px;border-radius:999px;background:var(--card);border:1px solid var(--border);color:var(--muted)}
.hero h1{font-size:clamp(26px,6vw,42px);line-height:1.25;margin-bottom:16px;background:linear-gradient(135deg,#fff,#fda4af);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero p{color:var(--muted);font-size:15px;max-width:560px;margin:0 auto 24px}
.btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:24px}
.btn{background:var(--grad);color:#fff;padding:15px 28px;border-radius:999px;font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:8px;min-height:48px}
.btn-ghost{background:var(--card);border:1px solid var(--border)}
.hero-meta{font-size:12px;color:var(--muted)}
.hero-meta span{margin:0 6px}
.phone{margin-top:30px;position:relative;max-width:340px;margin-left:auto;margin-right:auto}
.phone img{border-radius:36px;border:3px solid rgba(244,63,94,.4);box-shadow:0 30px 80px rgba(244,63,94,.25)}
/* Live bar */
.livebar{display:flex;align-items:center;justify-content:center;gap:8px;font-size:13px;color:var(--muted);padding:10px 0;flex-wrap:wrap}
.livebar .dot{width:8px;height:8px;border-radius:50%;background:#f59e0b;animation:pulse 1.5s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}
/* Section */
.sec{padding:40px 0}
.sec-h{display:flex;align-items:center;margin-bottom:24px;flex-wrap:wrap}
.sec-h h2{font-size:clamp(20px,5vw,28px)}
.sec-h .sub{color:var(--muted);font-size:13px;margin-left:10px}
.sec-h .more{margin-left:auto;font-size:12px;color:var(--rose);display:inline-flex;align-items:center;min-height:44px}
/* Feature grid */
.k-abilities{display:grid;grid-template-columns:1fr;gap:14px}
.k-abilities .item{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:18px;display:flex;gap:14px;align-items:flex-start}
.k-abilities .ico{width:44px;height:44px;border-radius:12px;background:var(--grad);display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}
.k-abilities h3{font-size:16px;margin-bottom:4px}
.k-abilities p{font-size:13px;color:var(--muted)}
/* Char / use grid */
.k-roles{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.k-role{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px}
.k-role .ic{font-size:24px;margin-bottom:8px}
.k-role h4{font-size:14px;margin-bottom:4px}
.k-role p{font-size:12px;color:var(--muted)}
/* Stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.stat{text-align:center;padding:16px 8px;background:var(--card);border:1px solid var(--border);border-radius:14px}
.stat .num{font-size:22px;font-weight:700;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.stat .lbl{font-size:11px;color:var(--muted)}
/* Shots */
.k-shots{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.k-shot{border-radius:18px;overflow:hidden;border:1px solid var(--border);aspect-ratio:300/650}
.k-shot img{width:100%;height:100%;object-fit:cover}
/* Steps */
.k-steps{display:grid;gap:14px}
.k-step{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:18px;display:flex;gap:14px;align-items:flex-start}
.k-step .n{width:36px;height:36px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0}
.k-step h3{font-size:16px;margin-bottom:4px}
.k-step p{font-size:13px;color:var(--muted)}
/* Compare */
.k-compare{display:grid;gap:12px}
.k-compare-card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px;display:flex;gap:12px;align-items:center}
.k-compare-card .feat-t{flex:0 0 28%;font-size:13px;font-weight:600}
.k-compare-card .us,.k-compare-card .them{flex:1;font-size:12px}
.k-compare-card .us{color:#f59e0b}
.k-compare-card .them{color:var(--muted)}
/* Safe */
.k-safe{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.k-safe .item{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px}
.k-safe h4{font-size:14px;margin-bottom:6px;color:#f59e0b}
.k-safe p{font-size:12px;color:var(--muted)}
/* Voices */
.k-reviews{display:grid;gap:12px}
.k-review{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px}
.k-review .who{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.k-review .av{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,#f43f5e,#f59e0b)}
.k-review .name{font-size:13px;font-weight:600}
.k-review .star{color:#fbbf24;font-size:12px}
.k-review p{font-size:13px;color:var(--muted)}
/* FAQ */
.k-faq{display:grid;gap:10px}
.k-faq details{background:var(--card);border:1px solid var(--border);border-radius:12px;overflow:hidden}
.k-faq summary{padding:16px;font-size:14px;font-weight:600;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;min-height:44px}
.k-faq summary::-webkit-details-marker{display:none}
.k-faq summary::after{content:"+";color:var(--rose);font-size:20px}
.k-faq details[open] summary::after{content:"−"}
.k-faq .ans{padding:0 16px 16px;font-size:13px;color:var(--muted)}
/* Related */
.k-related{display:flex;flex-wrap:wrap;gap:8px}
.k-related a{font-size:12px;padding:8px 14px;border-radius:999px;background:var(--card);border:1px solid var(--border);color:var(--muted);min-height:44px;display:inline-flex;align-items:center}
.k-related a:hover{color:var(--rose);border-color:var(--rose)}
/* CTA */
.k-cta{text-align:center;padding:50px 20px;background:linear-gradient(135deg,rgba(244,63,94,.15),rgba(245,158,11,.1));border:1px solid var(--border);border-radius:24px;margin:40px 0}
.k-cta h2{font-size:clamp(20px,5vw,28px);margin-bottom:10px}
.k-cta p{color:var(--muted);margin-bottom:20px;font-size:14px}
/* Footer */
.footer{text-align:center;padding:30px 16px;color:var(--muted);font-size:12px;border-top:1px solid var(--border)}
.footer .links{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:10px}
.footer .links a{color:var(--muted);display:inline-flex;align-items:center;min-height:44px}
.footer .links a:hover{color:var(--rose)}
/* Dock */
.dock{position:fixed;bottom:0;left:0;right:0;z-index:100;background:rgba(26,10,18,.92);backdrop-filter:blur(16px);border-top:1px solid var(--border);padding:10px 16px;display:flex;gap:10px;align-items:center;max-width:1080px;margin:0 auto}
.dock img{width:40px;height:40px;border-radius:10px}
.dock .info{flex:1}
.dock .t{font-size:14px;font-weight:600}
.dock .s{font-size:11px;color:var(--muted)}
.dock .dl{background:var(--grad);color:#fff;padding:11px 20px;border-radius:999px;font-size:13px;font-weight:600;min-height:44px;display:inline-flex;align-items:center}
/* Article */
.crumb{font-size:12px;color:var(--muted);padding:14px 0 4px}
.crumb a{color:var(--rose);display:inline-flex;align-items:center;min-height:44px}
.crumb span{margin:0 6px}
.box{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:20px;margin-bottom:20px}
.box h1{font-size:clamp(22px,5vw,30px);margin-bottom:10px}
.box .meta{font-size:12px;color:var(--muted);margin-bottom:16px}
.box h2{font-size:18px;margin:20px 0 10px;color:#fecdd3}
.box h3{font-size:15px;margin:14px 0 8px}
.box p{font-size:14px;color:var(--muted);margin-bottom:10px}
.box ul,.box ol{padding-left:20px;margin-bottom:10px;color:var(--muted);font-size:14px}
.box img{border-radius:12px;margin:12px 0}
.box a{color:var(--rose)}
/* Toast */
.toast{position:fixed;bottom:90px;left:50%;transform:translateX(-50%);background:#1a0a12;border:1px solid var(--rose);color:#fff;padding:10px 20px;border-radius:999px;font-size:13px;z-index:200;opacity:0;transition:.3s;pointer-events:none;white-space:nowrap;max-width:90vw;text-overflow:ellipsis;overflow:hidden}
.toast.show{opacity:1}
/* Desktop */
@media(min-width:640px){
  .k-abilities{grid-template-columns:repeat(2,1fr)}
  .k-shots{grid-template-columns:repeat(4,1fr)}
  .k-steps{grid-template-columns:repeat(4,1fr)}
  .k-reviews{grid-template-columns:repeat(2,1fr)}
  .k-safe{grid-template-columns:repeat(4,1fr)}
  .k-compare{grid-template-columns:repeat(2,1fr)}
}