/* ============================================================
   Convoy AI — 蓝白浅色设计系统
   ============================================================ */
:root{
  --bg:#f6f9ff; --bg-2:#eef3fb; --surface:#ffffff; --surface-2:#f2f6fc;
  --border:#e4eaf3; --border-strong:#cbd6e5;
  --text:#0f1b2d; --muted:#5a6b82; --faint:#94a3b8;
  --brand:#2563eb; --brand-dark:#1d4ed8; --brand-soft:#eff5ff; --brand-border:#bfd6ff;
  --brand-glow:rgba(37,99,235,.28);
  --green:#16a34a; --red:#dc2626; --amber:#d97706;
  --radius:16px; --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(15,40,80,.05);
  --shadow:0 10px 34px -12px rgba(30,70,140,.18);
  --shadow-lg:0 24px 60px -18px rgba(30,70,140,.28);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.65;font-size:15px;
  -webkit-font-smoothing:antialiased;overflow-x:hidden}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(60% 46% at 50% -8%, rgba(37,99,235,.10), transparent 70%),
    radial-gradient(38% 38% at 88% 8%, rgba(56,140,255,.07), transparent 70%);
}
#content,nav,footer,.doc-layout,.app,.auth-wrap{position:relative;z-index:1}
a{color:inherit;text-decoration:none}
code,pre,.mono{font-family:var(--mono)}
h1,h2,h3,h4{line-height:1.2;font-weight:700;letter-spacing:-.02em;color:var(--text)}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.grad-text{background:linear-gradient(120deg,var(--brand) 10%,#38a0ff 60%,#60a5fa);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- 导航 ---------- */
.topnav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.78);backdrop-filter:blur(16px) saturate(1.5);
  border-bottom:1px solid var(--border)}
.topnav .inner{max-width:1120px;margin:0 auto;padding:0 24px;height:66px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px}
.logo-badge{width:32px;height:32px;border-radius:9px;display:grid;place-items:center;
  background:linear-gradient(135deg,#3b82f6,var(--brand-dark));box-shadow:0 6px 16px -6px var(--brand-glow)}
.logo-badge svg{width:18px;height:18px;stroke:#fff}
.topnav .links{display:flex;gap:26px;margin-left:auto;align-items:center}
.topnav .links a.navlink{color:var(--muted);font-size:14.5px;font-weight:500;transition:.2s}
.topnav .links a.navlink:hover{color:var(--text)}
.topnav .links a.active{color:var(--brand)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 22px;border-radius:11px;font-weight:600;font-size:14.5px;
  cursor:pointer;border:none;font-family:inherit;transition:.2s;white-space:nowrap}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 12px 28px -8px var(--brand-glow)}
.btn-amber{background:linear-gradient(135deg,#3b82f6,var(--brand));color:#fff;box-shadow:0 8px 24px -8px var(--brand-glow)}
.btn-amber:hover{transform:translateY(-2px);box-shadow:0 14px 32px -8px var(--brand-glow);background:var(--brand-dark)}
.btn-ghost{background:var(--surface);color:var(--text);border:1px solid var(--border-strong)}
.btn-ghost:hover{background:var(--surface-2);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn-sm{padding:7px 15px;font-size:13.5px;border-radius:9px}
.btn-block{width:100%;justify-content:center}
.btn svg{width:16px;height:16px}

/* ---------- Hero ---------- */
.hero{position:relative;text-align:center;padding:92px 0 70px;overflow:hidden}
.hero .beam{position:absolute;top:-12%;left:50%;transform:translateX(-50%);width:760px;height:480px;z-index:0;pointer-events:none;
  background:conic-gradient(from 180deg at 50% 0%, transparent 42%, rgba(59,130,246,.14) 50%, transparent 58%);
  filter:blur(10px);opacity:.9}
.hero>*{position:relative;z-index:1}
.eyebrow{display:inline-flex;align-items:center;gap:8px;background:var(--surface);border:1px solid var(--brand-border);
  color:var(--brand);font-size:13px;font-weight:600;padding:6px 16px;border-radius:999px;margin-bottom:26px;box-shadow:var(--shadow-sm)}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px var(--brand)}
.hero h1{font-size:54px;letter-spacing:-.03em;margin-bottom:22px;color:#0b1626}
.hero .sub{font-size:18px;color:var(--muted);max-width:620px;margin:0 auto 34px;line-height:1.7}
.hero .cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ---------- 区块 ---------- */
.section{padding:72px 0;position:relative}
.section-head{text-align:center;margin-bottom:50px}
.section-head .kick{color:var(--brand);font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;margin-bottom:12px}
.section-head h2{font-size:35px;margin-bottom:14px;letter-spacing:-.025em;color:#0b1626}
.section-head p{color:var(--muted);font-size:16px;max-width:560px;margin:0 auto}

/* ---------- 卡片 ---------- */
.grid{display:grid;gap:18px}
.grid-3{grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px;
  box-shadow:var(--shadow-sm);transition:.25s;position:relative;overflow:hidden}
.card:hover{border-color:var(--brand-border);transform:translateY(-4px);box-shadow:var(--shadow)}
.card .ic{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;margin-bottom:18px;
  background:var(--brand-soft);border:1px solid var(--brand-border)}
.card .ic svg{width:22px;height:22px;stroke:var(--brand);fill:none;stroke-width:1.8}
.card h4{font-size:17px;margin-bottom:8px}
.card p{color:var(--muted);font-size:14px;line-height:1.6}

/* ---------- chips（真实品牌图标） ---------- */
.chips{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.chip{display:inline-flex;align-items:center;gap:9px;background:var(--surface);border:1px solid var(--border);
  border-radius:999px;padding:10px 20px;font-size:14.5px;color:var(--text);font-weight:500;
  box-shadow:var(--shadow-sm);transition:.2s}
.chip:hover{border-color:var(--border-strong);transform:translateY(-2px);box-shadow:var(--shadow)}
.bicon{width:19px;height:19px;display:inline-block;flex:none;
  -webkit-mask-size:contain;mask-size:contain;-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;
  -webkit-mask-position:center;mask-position:center}
.badge-letter{width:20px;height:20px;border-radius:6px;display:inline-grid;place-items:center;color:#fff;
  font-size:12px;font-weight:700;flex:none;font-family:var(--font)}

/* ---------- 流程 ---------- */
.flow{display:flex;align-items:stretch;gap:0;flex-wrap:wrap;justify-content:center}
.flow .step{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:24px 22px;min-width:170px;max-width:192px;text-align:center;box-shadow:var(--shadow-sm)}
.flow .step .n{width:32px;height:32px;border-radius:50%;margin:0 auto 13px;display:grid;place-items:center;
  background:var(--brand);color:#fff;font-weight:700;font-size:14.5px;box-shadow:0 6px 14px -4px var(--brand-glow)}
.flow .step b{display:block;font-size:14.5px;margin-bottom:5px}
.flow .step span{font-size:12.5px;color:var(--faint)}
.flow .arr{display:grid;place-items:center;color:var(--faint);padding:0 10px}
.flow .arr svg{width:20px;height:20px}

/* ---------- 提示框 ---------- */
.note{background:var(--brand-soft);border:1px solid var(--brand-border);border-radius:var(--radius-sm);
  padding:15px 19px;font-size:14px;color:#1e40af;margin:18px 0}
.note.warn{background:#fffbeb;border-color:#fde68a;color:#92400e}
.note.ok{background:#f0fdf4;border-color:#bbf7d0;color:#166534}

/* ---------- 文档 ---------- */
.doc-layout{max-width:1200px;margin:0 auto;padding:40px 24px;display:grid;grid-template-columns:240px 1fr;gap:44px;align-items:start}
.doc-toc{position:sticky;top:90px;font-size:14px}
.doc-toc .toc-title{font-weight:700;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);margin-bottom:14px}
.doc-toc a{display:block;color:var(--muted);padding:6px 0 6px 14px;border-left:2px solid var(--border);line-height:1.4;transition:.15s}
.doc-toc a:hover{color:var(--brand);border-left-color:var(--brand)}
.doc{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:48px 56px;box-shadow:var(--shadow-sm);min-width:0}
.doc h1{font-size:32px;margin-bottom:18px;padding-bottom:16px;border-bottom:1px solid var(--border);color:#0b1626}
.doc h2{font-size:23px;margin:40px 0 16px;padding-bottom:10px;border-bottom:1px solid var(--border);color:#0b1626}
.doc h3{font-size:17px;margin:26px 0 11px;color:var(--brand-dark)}
.doc p{margin:13px 0;color:#33415c}
.doc ul,.doc ol{margin:13px 0;padding-left:26px;color:#33415c}
.doc li{margin:6px 0}
.doc blockquote{border-left:3px solid var(--brand);background:var(--brand-soft);padding:12px 20px;margin:18px 0;
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:#1e3a8a;font-size:14px}
.doc blockquote p{margin:5px 0;color:#1e3a8a}
.doc code{background:var(--surface-2);padding:2px 7px;border-radius:5px;font-size:13px;color:#be185d}
.doc pre{background:#0b1626;color:#dbe7ff;border:1px solid #1e293b;border-radius:var(--radius-sm);padding:18px 20px;
  overflow-x:auto;margin:18px 0;font-size:13.5px;line-height:1.65}
.doc pre code{background:none;padding:0;color:inherit;font-size:inherit}
.doc table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14px;display:block;overflow-x:auto}
.doc th,.doc td{border:1px solid var(--border);padding:10px 14px;text-align:left}
.doc th{background:var(--surface-2);font-weight:600;color:#0b1626;white-space:nowrap}
.doc td{color:#33415c}
.doc tr:nth-child(even) td{background:#fafcff}
.doc hr{border:none;border-top:1px solid var(--border);margin:32px 0}
.doc a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.doc strong{color:#0b1626}

/* ---------- 表单 ---------- */
.field{margin-bottom:18px}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:7px;color:#1e293b}
.field .hint{font-size:12.5px;color:var(--faint);font-weight:400;margin-top:5px}
input,textarea,select{width:100%;font-family:inherit;font-size:14.5px;padding:11px 14px;border:1px solid var(--border-strong);
  border-radius:var(--radius-sm);background:var(--surface);color:var(--text);transition:.15s}
input::placeholder,textarea::placeholder{color:var(--faint)}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(37,99,235,.14)}
textarea{min-height:74px;resize:vertical;line-height:1.6}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}

/* ---------- 表格 ---------- */
.table-wrap{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;overflow-x:auto;box-shadow:var(--shadow-sm)}
table.data{width:100%;border-collapse:collapse;font-size:14px}
table.data th{background:var(--surface-2);text-align:left;padding:13px 18px;font-size:12.5px;color:var(--muted);
  font-weight:600;border-bottom:1px solid var(--border);white-space:nowrap;text-transform:uppercase;letter-spacing:.04em}
table.data td{padding:14px 18px;border-bottom:1px solid var(--border);color:#33415c}
table.data tr:last-child td{border-bottom:none}
table.data tr:hover td{background:#f8fbff}

/* ---------- badge ---------- */
.badge{display:inline-block;padding:3px 11px;border-radius:999px;font-size:12px;font-weight:600;line-height:1.7}
.badge-gray{background:var(--surface-2);color:var(--muted)}
.badge-green{background:#f0fdf4;color:var(--green)}
.badge-red{background:#fef2f2;color:var(--red)}
.badge-amber{background:#fffbeb;color:var(--amber)}
.badge-blue{background:var(--brand-soft);color:var(--brand)}

/* ---------- 应用外壳 ---------- */
.app{display:grid;grid-template-columns:240px 1fr;min-height:100vh}
.sidebar{background:var(--surface);border-right:1px solid var(--border);padding:26px 16px;
  position:sticky;top:0;height:100vh;overflow-y:auto}
.sidebar .brand{padding:0 10px 22px;margin-bottom:16px;border-bottom:1px solid var(--border);font-size:15px}
.nav-item{display:flex;align-items:center;gap:12px;padding:11px 14px;border-radius:var(--radius-sm);
  color:var(--muted);font-size:14.5px;font-weight:500;cursor:pointer;margin-bottom:4px;transition:.15s}
.nav-item svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.8}
.nav-item:hover{background:var(--surface-2);color:var(--text)}
.nav-item.on{background:var(--brand-soft);color:var(--brand);font-weight:600}
.side-foot{margin-top:22px;padding-top:16px;border-top:1px solid var(--border);font-size:12.5px;color:var(--faint)}
.side-foot a{color:var(--muted)}
.app-main{padding:40px 48px;max-width:1150px;min-width:0}
.app-main h2.page{font-size:28px;margin-bottom:8px;color:#0b1626}
.app-main .page-sub{color:var(--muted);font-size:14.5px;margin-bottom:32px}
.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px;margin-bottom:22px;box-shadow:var(--shadow-sm)}
.panel h3{font-size:16px;margin-bottom:18px}

.kpis{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:16px;margin-bottom:26px}
.kpi{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm);transition:.2s}
.kpi:hover{border-color:var(--brand-border);box-shadow:var(--shadow)}
.kpi .n{font-size:32px;font-weight:700;line-height:1;letter-spacing:-.02em;color:#0b1626}
.kpi .l{color:var(--muted);font-size:13px;margin-top:9px}

/* ---------- 登录 ---------- */
.login-mask{position:fixed;inset:0;background:rgba(15,30,60,.4);backdrop-filter:blur(6px);z-index:100;display:none;
  align-items:center;justify-content:center}
.login-card{background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:38px;width:400px;box-shadow:var(--shadow-lg)}
.login-card h3{font-size:22px;margin-bottom:8px}
.login-card p{color:var(--muted);font-size:14px;margin-bottom:24px}
.auth-wrap{min-height:100vh;display:grid;place-items:center;padding:24px;position:relative;z-index:1}
.auth-card{width:100%;max-width:430px;background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:34px;
  box-shadow:var(--shadow)}

.result{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:18px 20px;margin-top:16px;white-space:pre-wrap;line-height:1.7;font-size:14.5px;color:#1e293b}
.copy-code{background:#0b1626;color:#dbe7ff;border:1px solid #1e293b;border-radius:var(--radius-sm);
  padding:16px 18px;font-family:var(--mono);font-size:13px;overflow-x:auto;white-space:pre;line-height:1.6}
.toast{position:fixed;top:24px;left:50%;transform:translateX(-50%);background:var(--text);color:#fff;
  padding:11px 24px;border-radius:999px;font-size:14px;font-weight:600;z-index:200;box-shadow:var(--shadow-lg);display:none}
.muted{color:var(--muted)}.faint{color:var(--faint)}.small{font-size:13px}.mt{margin-top:16px}.mt-lg{margin-top:28px}
.flex{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.footer,.site-footer,body>footer{border-top:1px solid var(--border);background:var(--surface);padding:40px 0 26px;color:var(--muted);font-size:13.5px;
  position:relative;z-index:1;margin-top:60px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;padding-bottom:32px;
  border-bottom:1px solid var(--border)}
.foot-col h5{font-size:13px;color:var(--faint);font-weight:600;text-transform:uppercase;letter-spacing:.06em;margin-bottom:14px}
.foot-col a{display:block;color:var(--muted);font-size:14px;padding:4px 0;transition:.15s}
.foot-col a:hover{color:var(--brand)}
.foot-code{display:inline-block;background:var(--surface-2);border:1px solid var(--border);border-radius:6px;
  padding:5px 11px;font-size:13px;color:var(--brand)}
.foot-bar{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;padding-top:22px;font-size:12.5px;color:var(--faint)}
@media(max-width:680px){.foot-grid{grid-template-columns:1fr;gap:26px}.foot-bar{flex-direction:column}}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

@media(max-width:880px){
  .app{grid-template-columns:1fr}.sidebar{position:static;height:auto;display:flex;flex-wrap:wrap;gap:6px}
  .sidebar .brand{width:100%;border:none;margin:0 0 8px}.side-foot{display:none}
  .app-main{padding:26px 20px}.doc-layout{grid-template-columns:1fr}.doc-toc{display:none}
  .doc{padding:26px 22px}.hero h1{font-size:36px}.field-row{grid-template-columns:1fr}
  .hero .beam{width:100%}
}