:root{
  --primary:#f4598e;
  --deep:#d73f79;
  --purple:#b06ad6;
  --primary-soft:#ffe9f2;
  --dark:#2b1b33;
  --text:#3a2740;
  --muted:#6f5f78;
  --border:#f3d9e5;
  --bg:#fffdfe;
  --bg-soft:#fff3f8;
  --card:#ffffff;
  --radius:16px;
  --shadow:0 12px 32px rgba(244,89,142,.10);
  --shadow-hover:0 20px 44px rgba(244,89,142,.18);
  --grad:linear-gradient(135deg,var(--primary),var(--purple));
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:82px}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;color:var(--text);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
button{font-family:inherit}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.h2{font-size:32px;font-weight:800;color:var(--dark);line-height:1.3}
.lead-sm{font-size:15px;color:var(--muted);margin:14px 0 10px}
a:focus-visible,summary:focus-visible,button:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

.btn{display:inline-flex;align-items:center;justify-content:center;background:var(--grad);color:#fff;border:none;border-radius:999px;font-weight:600;cursor:pointer;box-shadow:0 8px 20px rgba(244,89,142,.28);transition:transform .25s ease,box-shadow .25s ease}
.btn:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(244,89,142,.38)}

.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.nav-in{display:flex;align-items:center;height:64px;gap:20px}
.logo{font-size:22px;font-weight:800;letter-spacing:.5px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;white-space:nowrap;display:inline-flex;align-items:center;min-height:44px}
.menu{display:flex;align-items:center;gap:14px;margin-left:auto}
.menu a{font-size:13px;color:var(--muted);padding:6px 4px;white-space:nowrap;transition:color .2s}
.menu a:hover,.menu a.active{color:var(--primary);font-weight:600}
.nav-btn{font-size:13px;padding:8px 18px;min-height:44px}

.hero{padding:132px 0 88px;background:radial-gradient(1100px 560px at 12% 0%,var(--primary-soft) 0%,transparent 55%),radial-gradient(900px 480px at 92% 18%,#f3e8ff 0%,transparent 52%),linear-gradient(180deg,#fff 0%,#fff6fb 100%);overflow:hidden}
.hero-in{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.chip{display:inline-block;font-size:12px;font-weight:700;color:var(--deep);background:#fff;border:1px solid var(--border);border-radius:999px;padding:6px 16px;margin-bottom:18px;box-shadow:0 6px 16px rgba(244,89,142,.10)}
.hero h1{font-size:52px;line-height:1.18;font-weight:800;color:var(--dark)}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:16px;color:var(--muted);margin:20px 0 28px;max-width:520px}
.personas p{font-size:14px;font-weight:600;color:var(--text);margin-bottom:12px}
.persona-list{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.p-item{display:inline-flex;align-items:center;gap:7px;padding:7px 15px;border-radius:999px;font-size:13px;border:1px solid var(--border);background:#fff;color:var(--text);transition:transform .2s,border-color .2s,box-shadow .2s}
.p-item::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--primary)}
.p-item:nth-child(2)::before{background:#ff9a62}
.p-item:nth-child(3)::before{background:var(--purple)}
.p-item:nth-child(4)::before{background:#6fa8ff}
.p-item:nth-child(5)::before{background:#5fc98e}
.p-item:hover{transform:translateY(-3px);border-color:var(--primary);box-shadow:var(--shadow)}
.p-custom{border-style:dashed;border-color:var(--primary);color:var(--deep);font-weight:600}
.p-custom::before{background:var(--grad)}
.hero-btn{font-size:16px;padding:15px 40px}
.chat-wrap{display:flex;justify-content:center}
.chat-card{width:100%;max-width:400px;background:#fff;border:1px solid var(--border);border-radius:24px;overflow:hidden;box-shadow:var(--shadow);animation:floaty 5s ease-in-out infinite}
.chat-head{display:flex;align-items:center;gap:12px;padding:14px 18px;background:linear-gradient(135deg,#fff,var(--primary-soft));border-bottom:1px solid var(--border)}
.chat-head img{width:42px;height:42px;border-radius:50%;object-fit:cover}
.chat-head .name{font-size:15px;font-weight:700;color:var(--dark)}
.chat-head .status{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:6px}
.chat-head .status::before{content:"";width:8px;height:8px;border-radius:50%;background:#3ddc84;animation:pulse 1.6s ease-in-out infinite}
.chat-body{padding:18px;min-height:344px;display:flex;flex-direction:column;gap:12px;background:var(--bg-soft)}
.msg{max-width:78%;padding:10px 14px;border-radius:16px;font-size:14px;line-height:1.6;animation:rise .5s ease both}
.msg.ai{align-self:flex-start;background:#fff;border:1px solid var(--border);border-bottom-left-radius:4px}
.msg.me{align-self:flex-end;background:var(--grad);color:#fff;border-bottom-right-radius:4px}
.typing{align-self:flex-start;display:flex;gap:5px;padding:13px 16px;background:#fff;border:1px solid var(--border);border-radius:16px;border-bottom-left-radius:4px}
.typing span{width:7px;height:7px;border-radius:50%;background:var(--primary);opacity:.4;animation:blink 1.2s ease-in-out infinite}
.typing span:nth-child(2){animation-delay:.2s}
.typing span:nth-child(3){animation-delay:.4s}
.chat-foot{padding:12px 18px;font-size:13px;color:#b9a5b8;border-top:1px solid var(--border);background:#fff}

.sec{padding:88px 0}
.sec.alt{background:var(--bg-soft)}
.sec-head{text-align:center;max-width:660px;margin:0 auto 48px}
.sec-tag{display:inline-block;font-size:12px;font-weight:700;color:var(--deep);background:var(--primary-soft);padding:5px 16px;border-radius:999px;margin-bottom:14px;letter-spacing:1px}
.sec-head h2{font-size:34px;font-weight:800;color:var(--dark);line-height:1.3}
.sec-head p{font-size:15px;color:var(--muted);margin-top:10px}

.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;transition:transform .25s ease,box-shadow .25s ease}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}

.step-card{position:relative}
.step-num{position:absolute;top:22px;right:24px;font-size:13px;font-weight:800;color:var(--primary);background:var(--primary-soft);padding:4px 12px;border-radius:999px}
.step-icon{width:54px;height:54px;border-radius:16px;background:var(--primary-soft);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.step-card h3{font-size:18px;color:var(--dark);margin-bottom:8px}
.step-card p{font-size:14px;color:var(--muted)}

.duo{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.prod-img img{width:100%;max-width:400px;margin:0 auto;border-radius:24px;box-shadow:var(--shadow)}
.prod-list{margin-top:10px}
.prod-list li{display:flex;gap:12px;align-items:flex-start;padding:10px 0;font-size:14px;color:var(--muted);border-bottom:1px dashed var(--border)}
.prod-list li::before{content:"✔";color:var(--primary);font-weight:800;flex-shrink:0;line-height:1.4;margin-top:2px}
.prod-list li:last-child{border-bottom:none}
.prod-list b{color:var(--dark);font-weight:700}

.feat-card{padding:0;overflow:hidden}
.feat-card img{width:100%;height:168px;object-fit:cover}
.feat-body{padding:22px 24px 26px}
.feat-body h3{font-size:18px;color:var(--dark);margin-bottom:12px}
.pain{background:var(--bg-soft);border:1px dashed var(--border);border-radius:12px;padding:12px 14px;font-size:13px;color:var(--muted)}
.pain b{display:block;font-size:12px;font-weight:700;color:var(--primary);margin-bottom:4px;letter-spacing:.5px}

.compare-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow)}
table{width:100%;min-width:660px;border-collapse:collapse;table-layout:fixed}
th,td{padding:16px 18px;text-align:center;font-size:14px;border-bottom:1px solid var(--border)}
thead th{background:var(--bg-soft);font-weight:700;color:var(--dark);font-size:15px}
th[scope="row"],td:first-child{text-align:left;font-weight:700;color:var(--dark);background:#fff;position:sticky;left:0;z-index:1;min-width:104px}
th[scope="row"]{background:var(--bg-soft)}
td.best{background:var(--primary-soft);color:var(--deep);font-weight:600}
th.best{background:var(--primary-soft)}
.best-tag{display:inline-block;font-size:12px;font-weight:800;color:#fff;background:var(--grad);padding:3px 12px;border-radius:999px}
tr:last-child td,tr:last-child th{border-bottom:none}

.scene-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.scene-img{width:100%;border-radius:24px;box-shadow:var(--shadow)}
.scene-list li{display:flex;gap:12px;align-items:flex-start;padding:11px 0;font-size:15px;border-bottom:1px dashed var(--border)}
.scene-list li:last-child{border-bottom:none}
.tick{color:var(--primary);font-weight:800;flex-shrink:0}
.vs{position:relative;display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;margin-top:56px;box-shadow:var(--shadow)}
.vs-col{padding:38px 34px}
.vs-l{background:#f4eef7}
.vs-r{background:var(--grad)}
.vs-col h3{font-size:20px;font-weight:800;margin-bottom:16px}
.vs-l h3{color:#5a4a66}
.vs-r h3{color:#fff}
.vs-col li{display:flex;gap:10px;align-items:flex-start;font-size:14px;padding:7px 0}
.vs-col li span{font-weight:800;flex-shrink:0}
.vs-l li{color:#6d5c7a}
.vs-l li span{color:#b089b8}
.vs-r li{color:#ffe3ef}
.vs-r li span{color:#fff}
.vs-badge{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:56px;height:56px;border-radius:50%;background:#fff;border:1px solid var(--border);box-shadow:var(--shadow);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;color:var(--primary)}

.grid-data{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-card{text-align:center;padding:34px 20px}
.stat-line{display:flex;align-items:baseline;justify-content:center;gap:2px}
.stat-num,.stat-sfx{font-size:42px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.2}
.stat-label{font-size:14px;color:var(--muted);margin-top:8px}

.custom-img img{width:100%;max-width:420px;margin:0 auto;border-radius:24px;box-shadow:var(--shadow)}

.grid-rev{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rev-card{padding:26px}
.rev-head{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.avatar{width:48px;height:48px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:700;flex-shrink:0}
.rev-name{font-size:15px;font-weight:700;color:var(--dark)}
.stars{font-size:13px;color:#ffb400;letter-spacing:2px}
.rev-text{font-size:14px;color:var(--text)}

.priv-img img{width:100%;max-width:440px;margin:0 auto;border-radius:24px;box-shadow:var(--shadow)}

.ver-card{max-width:760px;margin:0 auto;padding:38px 40px}
.ver-head{display:flex;align-items:center;gap:22px;padding-bottom:22px;border-bottom:1px solid var(--border);margin-bottom:8px}
.ver-badge{font-size:24px;font-weight:800;color:#fff;background:var(--grad);border-radius:16px;padding:12px 22px;flex-shrink:0}
.ver-meta h3{font-size:18px;color:var(--dark)}
.ver-meta p{font-size:13px;color:var(--muted);margin-top:2px}
.ver-list{margin-top:10px}
.ver-list li{display:flex;gap:12px;align-items:flex-start;padding:10px 0;font-size:14px;color:var(--text);border-bottom:1px dashed var(--border)}
.ver-list li:last-child{border-bottom:none}
.ver-list li::before{content:"";flex-shrink:0;width:8px;height:8px;border-radius:50%;background:var(--grad);margin-top:8px}

.faq{max-width:760px;margin:0 auto}
.faq details{border:1px solid var(--border);border-radius:14px;background:#fff;margin-bottom:14px;overflow:hidden;transition:box-shadow .25s ease,border-color .25s ease}
.faq details[open]{border-color:var(--primary);box-shadow:var(--shadow)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 22px;font-size:15px;font-weight:700;color:var(--dark)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:20px;font-weight:400;color:var(--primary);transition:transform .25s ease}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease}
.faq details[open] .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden}
.faq-a p{padding:0 22px 20px;font-size:14px;color:var(--muted)}

.down{position:relative;background:linear-gradient(135deg,#3b2146 0%,#6b3a7a 55%,#a0549c 100%);color:#fff;overflow:hidden}
.down::before,.down::after{content:"";position:absolute;border-radius:50%;filter:blur(60px);opacity:.5}
.down::before{width:420px;height:420px;background:#ff7bab;top:-160px;right:-120px}
.down::after{width:360px;height:360px;background:#7a5cff;bottom:-140px;left:-100px}
.down-in{position:relative;text-align:center;padding:88px 20px}
.down h1{font-size:42px;font-weight:800;line-height:1.25}
.down h1 em{font-style:normal;background:linear-gradient(90deg,#ffd9ea,#f7a8d0);-webkit-background-clip:text;background-clip:text;color:transparent}
.down-meta{font-size:14px;color:#ecd7ec;margin:16px 0 34px}
.down-btns{display:flex;justify-content:center;gap:20px}
.down-btn{display:inline-flex;align-items:center;justify-content:center;padding:16px 36px;font-size:16px;font-weight:700;border-radius:999px;transition:transform .25s ease,box-shadow .25s ease}
.down-btn.android{background:#fff;color:var(--dark)}
.down-btn.ios{border:2px solid #fff;color:#fff}
.down-btn:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(0,0,0,.22)}
.down-btn.ios:hover{background:rgba(255,255,255,.12)}
.down-tip{font-size:14px;color:#f6e3f2;margin-top:28px}

.foot{background:var(--dark);color:#cfc2d4;padding:34px 0;text-align:center;font-size:13px}
.foot a{color:#fff;font-weight:600}
.foot a:hover{color:#ffc0d9}
.foot .sep{margin:0 12px;color:#7d6b86}
.foot-sub{margin-top:6px;font-size:12px;color:#9c8aa8}

.top-btn{position:fixed;right:26px;bottom:30px;width:46px;height:46px;border-radius:50%;background:var(--grad);color:#fff;border:none;box-shadow:0 10px 24px rgba(244,89,142,.35);cursor:pointer;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transform:translateY(14px);transition:opacity .3s ease,transform .3s ease,visibility .3s;z-index:99}
.top-btn.show{opacity:1;visibility:visible;transform:none}
.top-btn:hover{box-shadow:0 14px 30px rgba(244,89,142,.45)}

.reveal{opacity:0;transform:translateY(26px);transition:opacity .6s ease,transform .6s ease}
.reveal.on{opacity:1;transform:none}

@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
@keyframes blink{0%,100%{opacity:.25;transform:translateY(0)}50%{opacity:1;transform:translateY(-3px)}}
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}

@media (max-width:1140px){
  .menu{gap:10px}
  .menu a{font-size:12px}
}

@media (max-width:1024px){
  .menu{display:none}
  .nav-btn{margin-left:auto}
  .grid4{grid-template-columns:repeat(2,1fr)}
  .grid-rev{grid-template-columns:repeat(2,1fr)}
}

@media (max-width:860px){
  .hero h1{font-size:40px}
  .duo{grid-template-columns:1fr;gap:36px}
  .scene-grid{grid-template-columns:1fr;gap:28px}
  .grid3{grid-template-columns:1fr}
  .sec{padding:64px 0}
  .sec-head h2{font-size:28px}
  .h2{font-size:28px}
  .vs{grid-template-columns:1fr;margin-top:44px}
  .vs-badge{position:relative;left:auto;top:auto;transform:none;margin:-28px auto 0;z-index:2}
  .vs-col{padding:28px 24px}
}

@media (max-width:768px){
  .hero{padding:104px 0 64px}
  .hero-in{grid-template-columns:1fr;gap:44px}
  .hero-btn{width:100%}
  .persona-list{gap:8px}
  .p-item{padding:6px 12px;font-size:13px}
  .grid4{grid-template-columns:1fr}
  .grid-data{grid-template-columns:repeat(2,1fr);gap:16px}
  .grid-rev{grid-template-columns:1fr}
  .stat-num,.stat-sfx{font-size:34px}
  .ver-card{padding:28px 22px}
  .down h1{font-size:30px}
  .down-meta{font-size:12px;white-space:nowrap}
  .down-btns{flex-direction:column;align-items:stretch;max-width:360px;margin:0 auto}
  .down-in{padding:72px 20px}
  .top-btn{right:16px;bottom:20px;width:42px;height:42px}
  .faq summary{font-size:14px;padding:16px 16px}
  .faq-a p{padding:0 16px 16px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .chat-card,.msg,.typing span{animation:none}
}