:root{--text:#101827;--muted:#5b6475;--line:#e7ecf5;--blue:#1687ff;--purple:#8b5cf6;--pink:#ec4da6;--card:rgba(255,255,255,0.9);--shadow:0 18px 48px rgba(109,90,232,0.12)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--text);font-family:Microsoft YaHei UI,PingFang SC,Segoe UI,Arial,sans-serif;background:radial-gradient(circle at 14% 18%,rgba(191,229,255,.68),transparent 26%),radial-gradient(circle at 83% 46%,rgba(216,195,255,.82),transparent 32%),radial-gradient(circle at 45% 86%,rgba(199,248,217,.54),transparent 26%),linear-gradient(135deg,#f7fbff,#fff 46%,#f6f0ff);min-height:100vh}a{color:inherit;text-decoration:none}main{padding:104px 48px 0}.top-nav{position:fixed;z-index:20;top:8px;left:8px;right:8px;height:66px;display:grid;grid-template-columns:320px 1fr 124px;padding:0 40px;border:1px solid #e4eaf5;border-radius:17px;background:rgba(255,255,255,.9);box-shadow:0 10px 36px rgba(51,65,85,.1);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.brand,.top-nav{align-items:center}.brand{display:flex;gap:14px;font-size:27px;font-weight:900;color:#334155}.brand-mark{width:34px;height:34px;border-radius:50%;background:radial-gradient(circle,#fff 35%,#72c7ff 42%,#7ae3a4 70%,#eaf6ff 71%)}.main-menu{display:flex;justify-content:space-between;align-items:center;gap:22px}.nav-link{font-size:16px;font-weight:700;color:#111827;white-space:nowrap}.nav-link:hover{color:var(--blue)}.login-pill,.primary{border:0;border-radius:999px;background:linear-gradient(90deg,#5f6cf6,#8b5cf6 52%,#ec4da6);color:#fff;font-weight:900;cursor:pointer;box-shadow:0 10px 24px rgba(139,92,246,.25)}.login-pill{display:inline-flex;align-items:center;justify-content:center;height:38px}.secondary{border:1px solid #d7deeb;border-radius:999px;background:#fff;color:#334155;font-weight:800;cursor:pointer}.wide{width:100%;height:54px;font-size:16px}.small-button{display:inline-flex;align-items:center;justify-content:center;min-width:88px;height:36px;padding:0 18px;font-size:13px}.hero-grid{display:grid;grid-template-columns:minmax(0,2fr) 406px;grid-gap:26px;gap:26px;align-items:stretch}.admin-card,.auth-card,.guide-card,.hero-card,.model-card,.panel-card,.product-card{background:var(--card);border:1px solid var(--line);border-radius:30px;box-shadow:var(--shadow);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.hero-card{min-height:414px;padding:50px 36px;position:relative;overflow:hidden}.hero-card:after{content:"";position:absolute;right:74px;top:86px;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,#e9ddff,transparent 68%)}.hero-badge{display:inline-flex;padding:8px 18px;border-radius:999px;color:var(--blue);background:#eff6ff;font-size:13px;font-weight:900}h1{margin:28px 0 18px;font-size:52px;line-height:1.15;letter-spacing:-1.4px}.gradient-text{background:linear-gradient(90deg,#5f6cf6,#8b5cf6 52%,#ec4da6);-webkit-background-clip:text;color:transparent}.lead{max-width:680px;color:var(--muted);font-size:19px;line-height:1.8}.hero-actions{display:flex;align-items:center;gap:16px;margin-top:34px}.hero-actions .primary,.hero-actions .secondary{height:52px;padding:0 38px;font-size:16px;display:inline-flex;align-items:center;justify-content:center}.mascot{position:absolute;right:96px;bottom:82px;width:128px;height:128px;border-radius:25px;background:linear-gradient(#78e09c 0 62%,#a1744d 62%);opacity:.86}.mascot:after,.mascot:before{content:"";position:absolute;top:34px;width:19px;height:19px;border-radius:5px;background:#122334}.mascot:before{left:25px}.mascot:after{right:25px}.auth-card{padding:82px 34px 28px;min-height:657px}.auth-card h2{margin:0;text-align:center;font-size:34px}.auth-card p{text-align:center;color:var(--muted)}.auth-tabs{display:grid;grid-template-columns:1fr 1fr;grid-gap:4px;gap:4px;margin:30px 0;padding:4px;border-radius:999px;background:#f3f7ff;border:1px solid #e3eaf6}.auth-tabs button{border:0;border-radius:999px;background:transparent;height:38px;font-weight:850;color:#64748b;cursor:pointer}.auth-tabs .active{background:var(--blue);color:white}.auth-form{display:grid;grid-gap:18px;gap:18px}.auth-form label{display:grid;grid-gap:10px;gap:10px;font-size:14px;font-weight:850}.auth-form input{width:100%;height:54px;border:1px solid #d7deeb;border-radius:14px;padding:0 18px;font-size:17px}.forgot{justify-self:end;color:var(--blue);font-size:14px;font-weight:850}.divider{display:flex;align-items:center;gap:18px;margin:30px 0 26px;color:#7b8496;font-size:13px;font-weight:650}.divider:after,.divider:before{content:"";height:1px;flex:1 1;background:#e3e8f2}.auth-message{min-height:22px;font-size:13px}.section-title{margin:34px 0 20px;display:flex;align-items:center;gap:12px}.section-title h2{margin:0;font-size:29px}.guide-grid,.model-grid,.resource-grid{display:grid;grid-gap:24px;gap:24px}.guide-grid,.model-grid,.resource-grid{grid-template-columns:repeat(3,1fr)}.product-card{padding:24px;min-height:180px}.product-card.compact{min-height:157px}.product-icon{width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:12px;color:var(--blue);font-weight:900}.guide-card h3,.model-card h3,.product-card h3{margin:20px 0 12px}.guide-card p,.model-card p,.product-card p{color:var(--muted);line-height:1.65}.model-card small,.product-card small{color:#7b8496;font-weight:650}.card-actions{display:flex;align-items:center;gap:12px;margin-top:18px;flex-wrap:wrap}.download-action{display:inline-flex;gap:10px;align-items:center}.download-action em{font-style:normal;color:var(--blue);font-size:12px;font-weight:800}.page-head{margin-bottom:34px}.page-head h1{margin-bottom:14px}.feature-strip{padding:34px 40px;margin-bottom:34px}.admin-card,.guide-card,.model-card{padding:28px}.search-bar{display:flex;align-items:center;gap:14px;padding:24px 40px;margin-bottom:34px}.search-bar input{flex:1 1;height:44px;border:1px solid #e1e8f5;border-radius:999px;padding:0 22px;font-size:15px}.chip{border-radius:999px;border:1px solid #d7deeb;padding:12px 22px;background:#fff;font-size:13px;font-weight:800;color:#64748b}.chip.active{background:var(--blue);color:white;border-color:var(--blue)}.code-card{padding:34px;background:#111827;color:#cbd5e1;border-radius:30px;box-shadow:var(--shadow);overflow:auto}.two-col{display:grid;grid-template-columns:1fr 1fr;grid-gap:28px;gap:28px}.admin-login-card{max-width:460px;min-height:auto;padding-top:34px}.admin-editor{display:grid;grid-template-columns:280px minmax(0,1fr);grid-gap:28px;gap:28px;margin-bottom:34px}.admin-form,.admin-list{background:var(--card);border:1px solid var(--line);border-radius:30px;box-shadow:var(--shadow);padding:24px}.admin-list{display:grid;align-content:start;grid-gap:12px;gap:12px}.admin-list h2{margin:0 0 10px}.admin-list button{border:1px solid #d7deeb;border-radius:18px;background:#fff;padding:16px;text-align:left;cursor:pointer}.admin-list button.active{border-color:var(--blue);box-shadow:0 10px 24px rgba(89,109,246,.12)}.admin-list span,.admin-list strong{display:block}.admin-list span{margin-top:6px;color:var(--muted);font-size:12px}.admin-form{display:grid;grid-gap:18px;gap:18px}.admin-form label{display:grid;grid-gap:9px;gap:9px;font-size:14px;font-weight:850}.admin-form input,.admin-form textarea{width:100%;border:1px solid #d7deeb;border-radius:14px;padding:14px 16px;font:inherit;background:#fff}.admin-grid{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:18px;gap:18px}.footer{margin-top:64px;height:96px;padding:0 49px;display:flex;align-items:center;justify-content:space-between;background:rgba(244,247,255,.92)}.footer nav{display:flex;gap:28px;text-decoration:underline}.footer span{color:var(--blue)}@media (max-width:980px){main{padding:96px 18px 0}.top-nav{grid-template-columns:1fr auto;padding:0 18px}.main-menu{display:none}.admin-editor,.admin-grid,.guide-grid,.hero-grid,.model-grid,.resource-grid,.two-col{grid-template-columns:1fr}.footer{height:auto;padding:28px;flex-direction:column;gap:18px;align-items:flex-start}}