:root{
  --blue:#2563eb; --blue2:#4f46e5; --blue-soft:#eff6ff; --blue-line:#bfdbfe;
  --ink:#0f172a; --muted:#64748b; --line:#e2e8f0; --soft:#f8fafc;
  --green:#15803d; --green-soft:#f0fdf4; --amber:#a16207; --amber-soft:#fffbeb;
  --red:#b91c1c; --red-soft:#fef2f2;
  --shadow:0 16px 45px rgba(15,23,42,.08); --radius:20px;
  --grad:linear-gradient(135deg,#2563eb,#4f46e5 60%,#7c3aed);
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Inter,system-ui,sans-serif;-webkit-font-smoothing:antialiased;line-height:1.6}
button,a{font:inherit;color:inherit}
button{cursor:pointer}
.shell{width:min(1120px,calc(100% - 32px));margin:auto}
.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.topbar-in{height:64px;display:flex;align-items:center;gap:12px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:.02em}
.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:var(--grad);color:#fff;font-size:13px;font-weight:800}
.top-actions{margin-left:auto;display:flex;gap:6px}
.nav-btn{border:1px solid transparent;background:transparent;padding:9px 14px;border-radius:10px;color:var(--muted);font-weight:650;transition:.18s}
.nav-btn:hover{background:var(--soft);color:var(--ink)}
.nav-btn.active{background:var(--ink);color:#fff}
.view{display:none;animation:rise .3s ease both}
.view.active{display:block}
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* Hero */
.hero{padding:72px 0 56px;background:radial-gradient(900px 420px at 80% -10%,rgba(124,58,237,.16),transparent),radial-gradient(700px 380px at 10% -20%,rgba(37,99,235,.18),transparent)}
.eyebrow{display:flex;align-items:center;justify-content:center;gap:10px;color:var(--blue2);font-size:13px;font-weight:800;letter-spacing:.1em;margin-bottom:18px}
.eyebrow i{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 6px var(--blue-soft)}
h1{font-size:clamp(34px,5vw,52px);line-height:1.12;letter-spacing:-.04em;text-align:center;margin:0 0 16px}
h1 .grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{max-width:720px;margin:0 auto;text-align:center;color:var(--muted);font-size:16.5px;line-height:1.8}
.hero-cta{display:flex;gap:12px;justify-content:center;margin-top:28px;flex-wrap:wrap}
.btn{border:0;padding:13px 26px;border-radius:13px;font-weight:750;font-size:15px;transition:.2s}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 26px rgba(79,70,229,.32)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(79,70,229,.42)}
.btn-ghost{background:#fff;border:1px solid var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--blue-line);background:var(--blue-soft)}
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;padding:8px 0 64px}
.feature-card{border:1px solid var(--line);border-radius:var(--radius);padding:24px;background:#fff;box-shadow:0 1px 2px rgba(15,23,42,.03);transition:.2s}
.feature-card:hover{transform:translateY(-4px);border-color:var(--blue-line);box-shadow:var(--shadow)}
.feature-ico{width:46px;height:46px;display:grid;place-items:center;border-radius:13px;background:var(--blue-soft);color:var(--blue);font-size:22px;margin-bottom:14px}
.feature-card h3{margin:0 0 8px;font-size:17px}
.feature-card p{margin:0;color:var(--muted);font-size:13.5px;line-height:1.65}

/* Section head */
.section{padding:52px 0}
.section-head{text-align:center;margin-bottom:34px}
.section-head .mini{font-size:12.5px;color:var(--blue);font-weight:800;letter-spacing:.12em}
.section-head h2{font-size:clamp(26px,3.4vw,36px);letter-spacing:-.03em;margin:10px 0 8px}
.section-head p{color:var(--muted);max-width:640px;margin:0 auto;font-size:14.5px;line-height:1.7}
.section-head .right{margin-top:12px}

/* Model cards */
.model-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:18px}
.model-card{border:1px solid var(--line);border-radius:var(--radius);padding:22px;background:#fff;cursor:pointer;transition:.2s;text-align:left;display:flex;flex-direction:column;gap:12px}
.model-card:hover{transform:translateY(-4px);border-color:var(--blue-line);box-shadow:var(--shadow)}
.model-top{display:flex;align-items:center;gap:12px}
.model-logo{width:44px;height:44px;flex:none;display:grid;place-items:center;border-radius:12px;background:var(--blue-soft);color:var(--blue);font-weight:800;font-size:16px}
.model-name{font-weight:800;font-size:17px}.model-copy{border:0;background:transparent;padding:0;font:inherit;font-weight:800;color:inherit;text-align:left;cursor:pointer}.model-copy:hover{color:var(--blue);text-decoration:underline;text-decoration-style:dotted}.model-vendor code{font:11px Consolas,monospace;color:var(--blue);background:var(--blue-soft);padding:2px 5px;border-radius:5px}
.model-vendor{color:var(--muted);font-size:12.5px;margin-top:2px}
.badge{display:inline-block;padding:3px 9px;border-radius:999px;font-size:11px;font-weight:750;background:var(--blue-soft);color:var(--blue)}
.badge.green{background:var(--green-soft);color:var(--green)}
.badge.amber{background:var(--amber-soft);color:var(--amber)}
.badge.dark{background:var(--ink);color:#fff}
.model-stats{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.stat{background:var(--soft);border-radius:12px;padding:10px 12px}
.stat b{display:block;font-size:13.5px}
.stat span{color:var(--muted);font-size:11.5px}
.model-feats{display:flex;flex-wrap:wrap;gap:6px}
.feat-chip{font-size:11px;padding:4px 9px;border-radius:999px;background:var(--soft);color:var(--muted);border:1px solid var(--line)}
.model-price{margin-top:auto;display:flex;align-items:baseline;gap:8px;padding-top:12px;border-top:1px dashed var(--line)}
.price-now{font-size:22px;font-weight:800;color:var(--blue)}
.price-now small{font-size:12px;font-weight:600;color:var(--muted)}
.price-off{font-size:12px;color:var(--muted)}
.price-off b{color:var(--red)}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:22px}
.search-input{flex:1;min-width:220px;padding:12px 16px;border:1px solid var(--line);border-radius:12px;font:inherit}
.search-input:focus{outline:none;border-color:var(--blue)}
.filter-chip{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 15px;font-weight:650;color:var(--muted)}
.filter-chip.active{background:var(--ink);color:#fff;border-color:var(--ink)}

/* Modal */
.modal-bg{position:fixed;inset:0;background:rgba(15,23,42,.55);z-index:100;display:grid;place-items:center;padding:20px}
.modal{width:min(760px,100%);max-height:88vh;overflow:auto;background:#fff;border-radius:22px;padding:30px;box-shadow:var(--shadow);animation:rise .25s ease both}
.modal h3{margin:0 0 6px;font-size:22px}
.modal .sub{color:var(--muted);font-size:13.5px;margin-bottom:18px}
.spec-table{width:100%;border-collapse:collapse;font-size:13.5px;margin:8px 0}
.spec-table th,.spec-table td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left}
.spec-table th{color:var(--muted);font-weight:650;width:34%;background:var(--soft)}
.close-btn{margin-left:auto;display:block;border:1px solid var(--line);background:#fff;padding:8px 16px;border-radius:10px;font-weight:650}

/* Tables */
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:16px}
table{width:100%;border-collapse:collapse;font-size:13.5px;min-width:720px}
th,td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
thead th{background:var(--soft);color:var(--muted);font-weight:700;white-space:nowrap}
tbody tr:hover{background:var(--soft)}
tr:last-child td{border-bottom:0}
.tag-save{display:inline-block;background:var(--green-soft);color:var(--green);padding:2px 8px;border-radius:999px;font-size:11px;font-weight:750}

/* Calc */
.calc-card{border:1px solid var(--line);border-radius:var(--radius);padding:26px;background:#fff;box-shadow:0 1px 2px rgba(15,23,42,.03)}
.calc-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.calc-field label{display:block;font-size:12.5px;color:var(--muted);font-weight:650;margin-bottom:6px}
.calc-field select,.calc-field input{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:11px;font:inherit;background:#fff}
.calc-field select:focus,.calc-field input:focus{outline:none;border-color:var(--blue)}
.calc-result{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-top:18px}
.calc-item{background:var(--soft);border-radius:13px;padding:14px}
.calc-item b{font-size:19px;display:block}
.calc-item span{color:var(--muted);font-size:12px}
.calc-item.win{background:var(--green-soft)}
.calc-item.win b{color:var(--green)}
.calc-item.lose{background:var(--red-soft)}
.calc-item.lose b{color:var(--red)}
.adv-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px;margin-top:30px}
.adv-card{border:1px solid var(--line);border-radius:16px;padding:20px}
.adv-card h4{margin:0 0 6px;font-size:15.5px}
.adv-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.65}
.adv-card .big{font-size:26px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:6px}

/* Tabs (tutorial) */
.tabs{display:grid;grid-template-columns:repeat(3,1fr);padding:5px;background:var(--soft);border:1px solid var(--line);border-radius:15px;max-width:660px;margin:0 auto 26px}
.tab{border:0;background:transparent;border-radius:11px;padding:13px;cursor:pointer;color:var(--muted);font-weight:750;transition:.2s}
.tab.active{background:#fff;color:var(--ink);box-shadow:0 4px 18px rgba(15,23,42,.08)}
.tutorial{display:none}
.tutorial.active{display:block;animation:rise .25s ease both}
.step-card{border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;margin-bottom:14px;background:#fff}
.step-title{display:flex;gap:14px;align-items:center}
.num{width:34px;height:34px;flex:none;display:grid;place-items:center;border-radius:10px;background:var(--grad);color:#fff;font-weight:800}
.step-title h3{margin:0;font-size:16px}
.step-title p{margin:2px 0 0;color:var(--muted);font-size:13px}
.field{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:12px;background:var(--soft);padding:11px 14px;border-radius:12px}
.field span{font-size:12.5px;color:var(--muted);font-weight:650;min-width:64px}
.field code{background:#0f172a;color:#e2e8f0;padding:6px 11px;border-radius:8px;font:12.5px Consolas,monospace;word-break:break-all}
.copy-btn{border:1px solid var(--line);background:#fff;padding:6px 12px;border-radius:8px;font-weight:700;font-size:12px;color:var(--blue)}
.copy-btn:hover{background:var(--blue-soft)}
.dev-code{position:relative;margin-top:12px;border-radius:14px;background:#0f172a;color:#e2e8f0;padding:16px;overflow:auto}
.dev-code pre{margin:0;font:13px/1.65 Consolas,monospace;white-space:pre-wrap;word-break:break-word}
.dev-code .copy{position:absolute;right:10px;top:10px;background:#1e293b;color:#fff;border-color:#475569;font-size:11.5px;padding:5px 10px}
.note{border:1px solid #fde68a;background:var(--amber-soft);color:var(--amber);border-radius:12px;padding:12px 16px;font-size:13px;margin:10px 0}
.note.blue{border-color:var(--blue-line);background:var(--blue-soft);color:var(--blue)}
.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px;margin-top:10px}
.tool-card{border:1px solid var(--line);border-radius:16px;padding:18px;background:#fff;cursor:pointer;text-align:left;transition:.18s}
.tool-card:hover{border-color:var(--blue-line);box-shadow:var(--shadow)}
.tool-card h4{margin:0 0 6px;font-size:15px}
.tool-card p{margin:0;color:var(--muted);font-size:12.5px;line-height:1.55}
.tool-card .level{display:inline-block;border-radius:999px;padding:3px 9px;font-size:10.5px;font-weight:800;background:var(--blue-soft);color:var(--blue);margin-bottom:8px}
.tool-card .level.green{background:var(--green-soft);color:var(--green)}
.tool-card .level.amber{background:var(--amber-soft);color:var(--amber)}

/* Agent matrix */
.agent-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px}
.agent-card{border:1px solid var(--line);border-radius:16px;padding:18px;background:#fff}
.agent-card h4{margin:0 0 10px;font-size:15.5px;display:flex;justify-content:space-between;align-items:center;gap:8px}
.agent-card .model-tag{font:12px Consolas,monospace;background:var(--blue-soft);color:var(--blue);padding:3px 8px;border-radius:8px}
.agent-row{display:flex;justify-content:space-between;gap:8px;padding:7px 0;border-bottom:1px dashed var(--line);font-size:13px}
.agent-row:last-child{border-bottom:0}
.agent-row .k{color:var(--muted)}
.agent-row .v{font-weight:650;text-align:right}
.agent-highlight{border:2px solid var(--blue2);background:linear-gradient(135deg,#eef2ff,#fff);padding:22px 26px;border-radius:18px;margin-bottom:22px}
.agent-highlight h3{margin:0 0 6px;font-size:19px}
.agent-highlight p{margin:0 0 10px;color:var(--muted);font-size:13.5px}

/* Query */
.query-panel{max-width:560px;margin:0 auto;border:1px solid var(--line);border-radius:var(--radius);padding:28px;background:#fff;box-shadow:0 1px 2px rgba(15,23,42,.03)}
.query-panel h3{margin:0 0 6px}
.query-panel .hint{color:var(--muted);font-size:13px;margin:0 0 16px}
.query-form{display:grid;gap:12px}
.query-form input{padding:14px 16px;border:1px solid var(--line);border-radius:12px;font:inherit}
.query-form input:focus{outline:none;border-color:var(--blue)}
.query-form button{padding:14px;border:0;border-radius:12px;background:var(--grad);color:#fff;font-weight:800;font-size:15px}
.query-result{display:none;margin-top:18px}
.query-result.open{display:block}
.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:16px}
.info-grid article{background:var(--soft);border-radius:13px;padding:12px 14px}
.info-grid span{display:block;color:var(--muted);font-size:11.5px}
.info-grid strong{font-size:14.5px}

/* Misc */
.copy-toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%);background:var(--ink);color:#fff;padding:10px 20px;border-radius:999px;font-size:13px;z-index:200;opacity:0;transition:.25s;pointer-events:none}
.copy-toast.show{opacity:1}
.fine{margin-top:46px;text-align:center;color:#94a3b8;font-size:12px}
.banner-note{max-width:860px;margin:0 auto 10px;background:var(--amber-soft);border:1px solid #fde68a;color:var(--amber);border-radius:12px;padding:10px 16px;font-size:12.5px;text-align:center}
@media(max-width:760px){
  .hero{padding:44px 0 34px}
  .top-actions .hide-mobile{display:none}
  .calc-grid,.info-grid{grid-template-columns:1fr}
  .tabs{grid-template-columns:repeat(3,1fr)}
  .tab{padding:11px 4px;font-size:13px}
  .feature-grid,.model-grid,.adv-grid,.agent-grid,.tool-grid{grid-template-columns:1fr}
}


/* 模型卡片布局修复：避免复制按钮把卡片内部布局挤乱 */
.model-card{min-width:0;overflow:hidden}
.model-top{min-width:0}
.model-top > span:nth-child(2){min-width:0;flex:1}
.model-name{min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.model-copy{display:block;max-width:100%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.model-vendor{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.model-vendor code{white-space:nowrap}
.model-price{min-width:0}
.price-off{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
@media(max-width:520px){.model-grid{grid-template-columns:1fr}.model-card{padding:18px}.model-stats{gap:8px}.model-price{gap:5px}.price-now{font-size:20px}}

.copy-inline-label{font-weight:700;margin-left:4px}
.inline-copy{display:inline-block;max-width:300px;overflow:hidden;text-overflow:ellipsis;vertical-align:middle;white-space:nowrap;font-family:Consolas,monospace}

/* 首页简洁版：收敛字体层级与卡片视觉 */
#view-home .hero{padding:68px 0 52px}
#view-home h1{font-size:clamp(32px,4.2vw,46px);line-height:1.18;max-width:900px;margin-left:auto;margin-right:auto}
#view-home .lead{max-width:610px;font-size:15px;line-height:1.75}
#view-home .feature-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;padding:18px 0 54px}
#view-home .feature-card{padding:20px;border-radius:16px;min-height:190px}
#view-home .feature-ico{width:38px;height:38px;font-size:18px;margin-bottom:12px}
#view-home .feature-card h3{font-size:15px;margin-bottom:7px}
#view-home .feature-card p{font-size:12.5px;line-height:1.6}
#view-home .hero-cta{margin-top:24px}
@media(max-width:900px){#view-home .feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:560px){#view-home .feature-grid{grid-template-columns:1fr}#view-home .hero{padding:46px 0 34px}}

.home-contact{padding:0 0 18px}.contact-card{display:flex;align-items:center;gap:18px;padding:20px 24px;border:1px solid var(--blue-line);border-radius:18px;background:linear-gradient(110deg,#eff6ff,#f5f3ff);box-shadow:0 8px 26px rgba(37,99,235,.06)}.contact-icon{width:48px;height:48px;display:grid;place-items:center;flex:none;border-radius:14px;background:var(--grad);color:#fff;font-size:13px;font-weight:800}.contact-copy{min-width:0;flex:1}.contact-kicker{color:var(--blue);font-size:12px;font-weight:800}.contact-copy h2{margin:2px 0;font-size:18px}.contact-copy p{margin:0;color:var(--muted);font-size:13px}.contact-list{display:flex;gap:10px;flex-wrap:wrap}.contact-item{display:flex;align-items:center;gap:7px;padding:8px 10px;background:#fff;border:1px solid rgba(191,219,254,.8);border-radius:10px;font-size:12px}.contact-item>span{color:var(--muted);font-weight:700}.contact-value{padding:0;border:0;background:transparent;color:var(--blue);font:700 13px Consolas,monospace;cursor:pointer}.contact-value:hover{text-decoration:underline}@media(max-width:700px){.contact-card{align-items:flex-start;flex-wrap:wrap;padding:18px}.contact-copy{flex-basis:calc(100% - 66px)}.contact-list{width:100%;padding-left:66px}}