:root{
  --c-ink:#1a0f2e;--c-ink-2:#3b2a5c;--c-mute:#6b5b8a;--c-line:#ede7f6;
  --c-bg:#fbfaff;--c-card:#ffffff;--c-soft:#f5f0ff;
  --c-violet:#6d28d9;--c-violet-2:#7c3aed;--c-pink:#ec4899;--c-amber:#f59e0b;
  --grad-main:linear-gradient(135deg,#6d28d9 0%,#a855f7 50%,#ec4899 100%);
  --grad-soft:linear-gradient(135deg,#ede9fe 0%,#fce7f3 100%);
  --shadow-sm:0 2px 10px rgba(109,40,217,.08);
  --shadow-md:0 8px 30px rgba(109,40,217,.12);
  --shadow-lg:0 20px 60px rgba(109,40,217,.18);
  --r-sm:10px;--r-md:16px;--r-lg:24px;--r-pill:999px;
  --f-sans:'PingFang SC','Helvetica Neue',-apple-system,'Microsoft YaHei',sans-serif;
  --f-display:'PingFang SC','Helvetica Neue',-apple-system,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--f-sans);color:var(--c-ink);background:var(--c-bg);line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}

/* topbar */
.topbar{background:linear-gradient(90deg,#2e1065,#6d28d9 60%,#be185d);color:#fff;font-size:13px;padding:9px 0}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px}
.topbar a{color:#fde047;font-weight:600;margin-left:8px}

/* nav */
.nav{background:#fff;border-bottom:1px solid var(--c-line);position:sticky;top:0;z-index:50;box-shadow:var(--shadow-sm)}
.nav .wrap{display:flex;justify-content:space-between;align-items:center;height:74px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:20px;color:var(--c-ink)}
.brand-mark{width:42px;height:42px;border-radius:12px;background:var(--grad-main);color:#fff;display:grid;place-items:center;font-size:20px;font-weight:800;box-shadow:var(--shadow-sm)}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{padding:10px 16px;border-radius:var(--r-pill);font-size:15px;color:var(--c-ink-2);font-weight:500;transition:.2s}
.nav-links a:hover{background:var(--c-soft);color:var(--c-violet)}
.nav-links a.active{color:var(--c-violet);background:var(--c-soft)}
.nav-cta{background:var(--grad-main)!important;color:#fff!important;padding:11px 22px!important;font-weight:600!important;box-shadow:var(--shadow-sm)}
.nav-cta:hover{transform:translateY(-1px);box-shadow:var(--shadow-md)}

/* hero asymmetric */
.hero{padding:80px 0 70px;background:radial-gradient(ellipse at 80% 10%,#fce7f3 0%,transparent 50%),radial-gradient(ellipse at 10% 80%,#ede9fe 0%,transparent 55%),var(--c-bg)}
.hero .wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:60px;align-items:center}
.hero-eyebrow{display:inline-block;padding:6px 14px;border-radius:var(--r-pill);background:#fff;color:var(--c-violet);font-size:13px;font-weight:600;letter-spacing:1.5px;box-shadow:var(--shadow-sm);margin-bottom:22px}
.hero h1{font-family:var(--f-display);font-size:54px;line-height:1.18;letter-spacing:-1px;font-weight:800;margin-bottom:22px}
.hero h1 em{font-style:normal;background:var(--grad-main);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:900}
.hero .lead{font-size:18px;color:var(--c-mute);max-width:520px;margin-bottom:32px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;border-radius:var(--r-pill);font-weight:600;font-size:15px;transition:.2s;border:none;cursor:pointer;font-family:inherit}
.btn-primary{background:var(--grad-main);color:#fff;box-shadow:var(--shadow-md)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn-ghost{background:#fff;color:var(--c-violet);border:1.5px solid var(--c-soft)}
.btn-ghost:hover{border-color:var(--c-violet);background:var(--c-soft)}
.hero-visual{position:relative}
.hero-visual img{border-radius:var(--r-lg);box-shadow:var(--shadow-lg);aspect-ratio:4/5;object-fit:cover}
.hero-badge{position:absolute;background:#fff;padding:14px 18px;border-radius:var(--r-md);box-shadow:var(--shadow-md);display:flex;align-items:center;gap:12px}
.hero-badge-1{top:30px;left:-30px}
.hero-badge-2{bottom:40px;right:-20px}
.hero-badge .dot{width:10px;height:10px;border-radius:50%;background:#10b981;box-shadow:0 0 0 4px rgba(16,185,129,.2)}
.hero-badge strong{font-size:14px;color:var(--c-ink)}
.hero-badge span{font-size:12px;color:var(--c-mute);display:block}

/* stats */
.stats-bar{padding:50px 0;background:var(--grad-soft)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px}
.stats-grid>div{text-align:center}
.stat-num{font-size:44px;font-weight:800;background:var(--grad-main);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.stat-num span:last-child{font-size:24px;margin-left:4px}
.stat-label{margin-top:10px;color:var(--c-mute);font-size:14px}

/* sections */
.sec{padding:80px 0}
.sec-head{text-align:center;margin-bottom:50px}
.sec-tag{display:inline-block;padding:5px 14px;border-radius:var(--r-pill);background:var(--c-soft);color:var(--c-violet);font-size:13px;font-weight:600;margin-bottom:14px}
.sec-head h2{font-size:38px;font-weight:800;letter-spacing:-.5px;margin-bottom:14px}
.sec-head p{color:var(--c-mute);font-size:16px;max-width:600px;margin:0 auto}

/* services grid */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.svc-card{background:var(--c-card);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:.3s;border:1px solid transparent}
.svc-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:#e9d5ff}
.svc-card .cover{aspect-ratio:16/10;overflow:hidden;position:relative}
.svc-card .cover img{width:100%;height:100%;object-fit:cover;transition:.5s}
.svc-card:hover .cover img{transform:scale(1.06)}
.svc-card .cover .price-tag{position:absolute;top:14px;right:14px;background:var(--grad-main);color:#fff;padding:6px 14px;border-radius:var(--r-pill);font-weight:700;font-size:14px;box-shadow:var(--shadow-md)}
.svc-body{padding:22px 24px 24px}
.svc-cat{font-size:12px;color:var(--c-violet);font-weight:600;letter-spacing:1px}
.svc-card h3{font-size:19px;font-weight:700;margin:8px 0 10px;line-height:1.4}
.svc-card p{color:var(--c-mute);font-size:14px;line-height:1.7;margin-bottom:16px;min-height:48px}
.svc-meta{display:flex;justify-content:space-between;align-items:center;padding-top:16px;border-top:1px dashed var(--c-line)}
.svc-meta .price{font-size:22px;font-weight:800;color:var(--c-violet)}
.svc-meta .price small{font-size:12px;color:var(--c-mute);font-weight:400;margin-left:2px}
.svc-meta a{color:var(--c-violet);font-weight:600;font-size:14px}
.svc-meta a:hover{color:var(--c-pink)}

/* features alt */
.feat-wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feat-card{padding:32px 24px;background:#fff;border-radius:var(--r-lg);text-align:left;box-shadow:var(--shadow-sm);transition:.3s}
.feat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.feat-icon{width:54px;height:54px;border-radius:14px;background:var(--grad-soft);display:grid;place-items:center;margin-bottom:18px;font-size:24px;color:var(--c-violet)}
.feat-card h4{font-size:17px;font-weight:700;margin-bottom:8px}
.feat-card p{color:var(--c-mute);font-size:14px;line-height:1.7}

/* case list */
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.case-card{background:#fff;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:.3s;display:grid;grid-template-columns:.85fr 1.15fr}
.case-card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}
.case-card .cover{aspect-ratio:1/1;overflow:hidden}
.case-card .cover img{width:100%;height:100%;object-fit:cover}
.case-card .body{padding:22px 24px;display:flex;flex-direction:column;justify-content:center}
.case-card .tag{font-size:12px;color:var(--c-pink);font-weight:600;letter-spacing:1px}
.case-card h4{font-size:17px;font-weight:700;margin:8px 0 8px;line-height:1.4}
.case-card p{color:var(--c-mute);font-size:13px;line-height:1.6;margin-bottom:10px}
.case-card .meta{font-size:12px;color:var(--c-mute)}

/* reviews */
.rv-list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.rv-card{background:#fff;border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow-sm)}
.rv-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.rv-avatar{width:42px;height:42px;border-radius:50%;background:var(--grad-main);color:#fff;display:grid;place-items:center;font-weight:700}
.rv-name{font-weight:700;font-size:14px}
.rv-date{font-size:12px;color:var(--c-mute)}
.rv-stars{color:var(--c-amber);font-size:14px;margin-bottom:8px}
.rv-text{font-size:14px;color:var(--c-ink-2);line-height:1.7}

/* cta */
.cta-band{padding:60px 0;background:var(--grad-main);color:#fff;text-align:center;position:relative;overflow:hidden}
.cta-band h3{font-size:32px;font-weight:800;margin-bottom:12px}
.cta-band p{opacity:.9;margin-bottom:26px;font-size:16px}
.cta-band .btn-primary{background:#fff;color:var(--c-violet)}

/* detail page */
.crumb{padding:18px 0;color:var(--c-mute);font-size:13px}
.crumb a{color:var(--c-mute)}
.crumb a:hover{color:var(--c-violet)}
.detail-head{display:grid;grid-template-columns:1.1fr .9fr;gap:50px;padding:30px 0 60px}
.detail-cover{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-lg)}
.detail-cover img{aspect-ratio:4/3;object-fit:cover}
.detail-info .cat{color:var(--c-violet);font-weight:600;font-size:13px;letter-spacing:1px}
.detail-info h1{font-size:34px;font-weight:800;margin:10px 0 14px;line-height:1.3}
.detail-info .desc{color:var(--c-mute);font-size:15px;line-height:1.8;margin-bottom:20px}
.detail-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:22px}
.detail-tags span{background:var(--c-soft);color:var(--c-violet);padding:5px 12px;border-radius:var(--r-pill);font-size:12px;font-weight:500}
.price-box{background:var(--grad-soft);border-radius:var(--r-lg);padding:24px;margin-bottom:24px}
.price-box .now{font-size:38px;font-weight:800;color:var(--c-violet);line-height:1}
.price-box .now small{font-size:14px;color:var(--c-mute);font-weight:400;margin-left:6px}
.price-box .old{color:var(--c-mute);text-decoration:line-through;font-size:14px;margin-top:6px}
.detail-actions{display:flex;gap:12px}
.detail-spec{display:grid;grid-template-columns:repeat(2,1fr);gap:30px;padding:50px 0;border-top:1px solid var(--c-line)}
.detail-spec h3{font-size:20px;font-weight:700;margin-bottom:16px}
.detail-spec ul{list-style:none;padding:0}
.detail-spec li{padding:12px 0;border-bottom:1px dashed var(--c-line);display:flex;justify-content:space-between;font-size:14px;color:var(--c-ink-2)}
.detail-spec li span:first-child{color:var(--c-mute)}
.detail-spec li span:last-child{font-weight:600}
.detail-content{padding:50px 0;border-top:1px solid var(--c-line)}
.detail-content h3{font-size:24px;font-weight:700;margin-bottom:18px}
.detail-content p{color:var(--c-ink-2);font-size:15px;line-height:1.9;margin-bottom:14px}
.detail-content img{border-radius:var(--r-md);margin:20px 0}

/* form */
.form-wrap{max-width:760px;margin:0 auto;background:#fff;border-radius:var(--r-lg);padding:40px;box-shadow:var(--shadow-md)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:18px}
.form-row.full{grid-template-columns:1fr}
.form-group label{display:block;font-size:13px;color:var(--c-ink-2);font-weight:600;margin-bottom:6px}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:13px 16px;border:1.5px solid var(--c-line);border-radius:var(--r-sm);font-family:inherit;font-size:14px;transition:.2s;background:#fafafa}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--c-violet);background:#fff;box-shadow:0 0 0 4px rgba(109,40,217,.1)}
.form-group textarea{min-height:110px;resize:vertical}
.pay-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:18px}
.pay-opt{padding:16px;border:1.5px solid var(--c-line);border-radius:var(--r-md);text-align:center;cursor:pointer;transition:.2s;background:#fff}
.pay-opt.on,.pay-opt:hover{border-color:var(--c-violet);background:var(--c-soft);color:var(--c-violet)}
.pay-opt strong{display:block;font-size:14px}
.pay-opt small{display:block;font-size:11px;color:var(--c-mute);margin-top:4px}
.summary{background:var(--c-soft);border-radius:var(--r-md);padding:18px;margin:20px 0;font-size:14px}
.summary .row{display:flex;justify-content:space-between;padding:6px 0}
.summary .total{border-top:1px dashed #c4b5fd;margin-top:10px;padding-top:10px;font-size:18px;font-weight:800;color:var(--c-violet)}

/* about timeline */
.about-hero{padding:60px 0;background:var(--grad-soft)}
.about-hero h1{font-size:42px;font-weight:800;text-align:center;margin-bottom:14px}
.about-hero p{text-align:center;color:var(--c-mute);max-width:680px;margin:0 auto;font-size:16px;line-height:1.8}
.timeline{position:relative;max-width:820px;margin:0 auto;padding:30px 0}
.timeline::before{content:'';position:absolute;left:50%;top:0;bottom:0;width:2px;background:linear-gradient(180deg,#a855f7,#ec4899);transform:translateX(-50%)}
.tl-item{display:grid;grid-template-columns:1fr 60px 1fr;gap:20px;align-items:center;margin-bottom:30px}
.tl-year{background:var(--grad-main);color:#fff;width:60px;height:60px;border-radius:50%;display:grid;place-items:center;font-weight:700;font-size:14px;box-shadow:var(--shadow-md);z-index:2}
.tl-body{background:#fff;padding:18px 22px;border-radius:var(--r-md);box-shadow:var(--shadow-sm)}
.tl-body h4{font-size:16px;font-weight:700;margin-bottom:6px}
.tl-body p{color:var(--c-mute);font-size:13px;line-height:1.6;margin:0}
.tl-item:nth-child(even) .tl-body{grid-column:3}
.tl-item:nth-child(even) > div:first-child{order:3}
.team-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:40px}
.team-card{text-align:center;background:#fff;padding:28px 18px;border-radius:var(--r-lg);box-shadow:var(--shadow-sm)}
.team-avatar{width:80px;height:80px;border-radius:50%;margin:0 auto 14px;overflow:hidden;box-shadow:var(--shadow-md)}
.team-card h5{font-weight:700;font-size:15px}
.team-card span{color:var(--c-violet);font-size:12px;font-weight:600;letter-spacing:1px}
.team-card p{font-size:12px;color:var(--c-mute);margin-top:8px;line-height:1.6}

/* contact */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:start}
.contact-info{background:var(--grad-main);color:#fff;padding:36px;border-radius:var(--r-lg);box-shadow:var(--shadow-lg)}
.contact-info h3{font-size:24px;font-weight:800;margin-bottom:10px}
.contact-info p{opacity:.9;margin-bottom:26px;font-size:14px;line-height:1.7}
.contact-info ul{list-style:none}
.contact-info li{padding:14px 0;border-bottom:1px solid rgba(255,255,255,.15);display:flex;align-items:start;gap:14px;font-size:14px}
.contact-info li strong{display:block;font-size:12px;opacity:.7;letter-spacing:1px;margin-bottom:4px;font-weight:500}
.contact-info li span{font-weight:600;font-size:15px}

/* footer */
.footer{background:#1a0f2e;color:#cbb8e0;padding:60px 0 30px;margin-top:60px}
.foot-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:40px;margin-bottom:40px}
.foot-brand{font-size:22px;font-weight:800;color:#fff;margin-bottom:14px;display:flex;align-items:center;gap:12px}
.foot-grid p{font-size:13px;line-height:1.8;color:#9d8cb8}
.foot-grid h5{color:#fff;font-size:14px;margin-bottom:16px;font-weight:600}
.foot-grid ul{list-style:none}
.foot-grid li{padding:5px 0;font-size:13px}
.foot-grid li a{color:#9d8cb8;transition:.2s}
.foot-grid li a:hover{color:#fff}
.foot-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;font-size:12px;color:#7c6a99}
.foot-bottom a{color:#a78bfa}
.foot-bottom a:hover{color:#ec4899}

/* floating buttons */
.float-btn{position:fixed;width:56px;height:56px;border-radius:50%;display:grid;place-items:center;cursor:pointer;box-shadow:var(--shadow-lg);transition:.2s;z-index:99;border:none}
.float-btn:hover{transform:translateY(-3px) scale(1.05)}
#topBtn{bottom:30px;right:30px;background:#fff;color:var(--c-violet);font-size:22px;border:1.5px solid var(--c-soft);opacity:0;visibility:hidden}
#topBtn.show{opacity:1;visibility:visible}
#chatBtn{bottom:110px;right:30px;background:var(--grad-main);color:#fff;font-size:24px}
.chat-panel{position:fixed;bottom:175px;right:30px;width:340px;max-height:480px;background:#fff;border-radius:var(--r-lg);box-shadow:var(--shadow-lg);z-index:98;display:none;flex-direction:column;overflow:hidden}
.chat-panel.show{display:flex}
.chat-head{background:var(--grad-main);color:#fff;padding:16px 20px;display:flex;justify-content:space-between;align-items:center}
.chat-head strong{font-size:15px}
.chat-head .close{cursor:pointer;font-size:20px;background:none;border:none;color:#fff}
.chat-body{flex:1;padding:16px;overflow-y:auto;max-height:300px}
.chat-msg{margin-bottom:12px;font-size:13px;line-height:1.6}
.chat-msg.bot{background:var(--c-soft);padding:10px 14px;border-radius:var(--r-md) var(--r-md) var(--r-md) 4px;max-width:80%}
.chat-msg.me{background:var(--c-violet);color:#fff;padding:10px 14px;border-radius:var(--r-md) var(--r-md) 4px var(--r-md);max-width:80%;margin-left:auto}
.chat-input{display:flex;border-top:1px solid var(--c-line);padding:10px}
.chat-input input{flex:1;border:none;padding:10px;font-size:13px;outline:none}
.chat-input button{background:var(--grad-main);color:#fff;border:none;padding:0 18px;border-radius:var(--r-pill);font-weight:600;cursor:pointer;font-size:13px}

/* responsive */
@media (max-width:960px){
  .hero .wrap{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:38px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .svc-grid,.feat-wrap,.rv-list{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:1fr}
  .detail-head{grid-template-columns:1fr}
  .detail-spec{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .team-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .timeline::before{left:30px}
  .tl-item{grid-template-columns:60px 1fr;gap:14px}
  .tl-item:nth-child(even) .tl-body{grid-column:2}
  .tl-item:nth-child(even) > div:first-child{order:0}
}
@media (max-width:640px){
  .nav .wrap{height:64px}
  .nav-links{display:none}
  .hero{padding:50px 0}
  .hero h1{font-size:30px}
  .sec{padding:50px 0}
  .sec-head h2{font-size:28px}
  .svc-grid,.feat-wrap,.rv-list,.foot-grid,.team-grid,.stats-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .pay-grid{grid-template-columns:1fr}
  .form-wrap{padding:24px}
  .chat-panel{width:calc(100vw - 60px);right:30px}
}