/* =========================================================
   文昌恒昌网络科技工作室 · 自适应官网
   主题：深色科技风 / 品牌红 #c11e2b
   ========================================================= */
:root{
  --bg:#0a0e17;
  --bg2:#0f1524;
  --panel:rgba(255,255,255,.035);
  --panel-2:rgba(255,255,255,.06);
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.16);
  --text:#e9edf5;
  --muted:#93a0b8;
  --dim:#6b7a94;
  --brand:#e6394b;
  --brand-deep:#c11e2b;
  --brand-2:#ff7a45;
  --cyan:#2fd8f5;
  --ok:#3ddc97;
  --warn:#f5b93d;
  --radius:14px;
  --shadow:0 18px 50px rgba(0,0,0,.45);
  --maxw:1180px;
  --header-h:66px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.75;overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
::selection{background:rgba(230,57,75,.45)}

/* ---------- 工具 ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.strong{color:var(--text);font-weight:700}
.center{text-align:center}
.grad-text{
  background:linear-gradient(96deg,#ff8a5c,var(--brand) 55%,#ff5d7a);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

/* ---------- 顶部导航 ---------- */
.header{
  position:fixed;inset:0 0 auto 0;z-index:120;height:var(--header-h);
  background:rgba(10,14,23,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;transition:border-color .3s,background .3s;
}
.header.scrolled{border-bottom-color:var(--line);background:rgba(10,14,23,.9)}
.header .wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:18px}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.logo-badge{
  width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(140deg,#fff,#ffe9ec);
  box-shadow:0 6px 18px rgba(230,57,75,.35);
}
.logo-badge img{width:34px;height:auto}
.logo-name{font-weight:800;font-size:17px;letter-spacing:.5px;line-height:1.2}
.logo-name small{display:block;font-size:10px;font-weight:500;color:var(--dim);letter-spacing:2.2px}
.nav{display:flex;align-items:center;gap:4px}
.nav a{
  position:relative;padding:9px 15px;border-radius:9px;font-size:15px;color:var(--muted);
  transition:color .2s,background .2s;white-space:nowrap;
}
.nav a:hover{color:var(--text);background:var(--panel-2)}
.nav a.active{color:#fff;background:linear-gradient(135deg,rgba(230,57,75,.22),rgba(255,122,69,.12))}
.nav a.active::after{
  content:"";position:absolute;left:15px;right:15px;bottom:3px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
}
.header-cta{
  display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:10px;font-size:14px;font-weight:700;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;
  box-shadow:0 8px 22px rgba(230,57,75,.32);transition:transform .2s,box-shadow .2s;flex-shrink:0;
}
.header-cta:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(230,57,75,.42)}
.burger{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:var(--panel);
  cursor:pointer;position:relative;flex-shrink:0}
.burger span{position:absolute;left:11px;right:11px;height:2px;border-radius:2px;background:var(--text);transition:.25s}
.burger span:nth-child(1){top:14px}.burger span:nth-child(2){top:20px}.burger span:nth-child(3){top:26px}
.burger.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.m-nav{
  display:none;position:fixed;top:var(--header-h);left:0;right:0;z-index:119;
  background:rgba(12,17,29,.97);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);
  padding:10px 18px 18px;flex-direction:column;gap:2px;
}
.m-nav.open{display:flex}
.m-nav a{padding:13px 12px;border-radius:10px;color:var(--muted);font-size:15px;border-bottom:1px solid rgba(255,255,255,.04)}
.m-nav a.active{color:#fff;background:var(--panel-2)}

/* ---------- 通用区块 ---------- */
section.block{padding:96px 0;position:relative}
.sec-head{text-align:center;max-width:760px;margin:0 auto 52px}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;padding:5px 14px;border-radius:999px;font-size:12.5px;
  color:var(--brand);background:rgba(230,57,75,.1);border:1px solid rgba(230,57,75,.28);letter-spacing:1px;margin-bottom:16px;
}
.sec-head h2{font-size:34px;font-weight:800;letter-spacing:1px;line-height:1.3}
.sec-head p{color:var(--muted);margin-top:14px;font-size:15.5px}

/* 背景装饰 */
.bg-grid{
  position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:46px 46px;
  -webkit-mask-image:radial-gradient(ellipse 70% 60% at 50% 40%,#000 30%,transparent 75%);
  mask-image:radial-gradient(ellipse 70% 60% at 50% 40%,#000 30%,transparent 75%);
}
.glow{position:absolute;border-radius:50%;filter:blur(90px);pointer-events:none;opacity:.32}

/* ---------- Hero ---------- */
.hero{position:relative;padding:calc(var(--header-h) + 84px) 0 90px;overflow:hidden}
.hero .glow.g1{width:520px;height:520px;background:#c11e2b;top:-160px;left:-120px}
.hero .glow.g2{width:460px;height:460px;background:#0e7490;top:60px;right:-140px;opacity:.24}
.hero-inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center}
.hero-tag{display:inline-flex;align-items:center;gap:9px;padding:6px 15px;border-radius:999px;
  border:1px solid var(--line-2);background:var(--panel);color:var(--muted);font-size:13px;margin-bottom:22px}
.dot{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(61,220,151,.18)}
.hero h1{font-size:50px;font-weight:900;line-height:1.22;letter-spacing:1px}
.hero .sub{color:var(--muted);font-size:17px;margin:22px 0 8px;max-width:560px}
.hero .sub b{color:var(--text)}
.hero-points{margin:20px 0 30px;display:flex;flex-wrap:wrap;gap:10px 26px;color:var(--muted);font-size:14.5px}
.hero-points li{display:flex;align-items:center;gap:8px}
.hero-points svg{flex-shrink:0}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:9px;padding:13px 26px;border-radius:12px;font-size:15.5px;font-weight:700;
  cursor:pointer;border:1px solid transparent;transition:.22s}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 12px 30px rgba(230,57,75,.34)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 36px rgba(230,57,75,.45)}
.btn-ghost{background:var(--panel);border-color:var(--line-2);color:var(--text)}
.btn-ghost:hover{background:var(--panel-2);border-color:rgba(255,255,255,.3)}

/* Hero 右侧：数据面板视觉 */
.hero-visual{position:relative}
.mock-window{
  border:1px solid var(--line);border-radius:16px;background:linear-gradient(180deg,rgba(20,27,44,.96),rgba(13,18,31,.96));
  box-shadow:var(--shadow);overflow:hidden;
}
.mock-bar{display:flex;align-items:center;gap:7px;padding:11px 14px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.03)}
.mock-bar i{width:10px;height:10px;border-radius:50%}
.mock-bar i:nth-child(1){background:#ff5f57}.mock-bar i:nth-child(2){background:#febc2e}.mock-bar i:nth-child(3){background:#28c840}
.mock-bar em{margin-left:8px;font-style:normal;font-size:12px;color:var(--dim);font-family:ui-monospace,Consolas,monospace}
.mock-body{padding:20px;font-family:ui-monospace,SFMono-Regular,Consolas,"Courier New",monospace;font-size:13px;line-height:1.9}
.mock-body .k{color:#7dd3fc}.mock-body .s{color:#fca5a5}.mock-body .n{color:#fcd34d}.mock-body .c{color:#5b6b85}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:16px}
.stat{border:1px solid var(--line);border-radius:12px;padding:14px;background:var(--panel)}
.stat b{display:block;font-size:22px;font-weight:800}
.stat span{font-size:12px;color:var(--dim)}

/* ---------- 数据条 ---------- */
.metrics{padding:34px 0 10px}
.metrics .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.metric{border:1px solid var(--line);border-radius:var(--radius);padding:22px 20px;background:var(--panel);text-align:center;
  transition:.25s}
.metric:hover{transform:translateY(-4px);border-color:rgba(230,57,75,.4);background:var(--panel-2)}
.metric b{font-size:30px;font-weight:900;background:linear-gradient(96deg,#ff8a5c,var(--brand));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.metric span{display:block;color:var(--dim);font-size:13.5px;margin-top:4px}

/* ---------- 服务 ---------- */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{
  border:1px solid var(--line);border-radius:var(--radius);padding:30px 24px;background:var(--panel);
  transition:.28s;position:relative;overflow:hidden;
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));transform:scaleX(0);transform-origin:left;transition:.3s;
}
.card:hover{transform:translateY(-6px);background:var(--panel-2);border-color:var(--line-2);box-shadow:var(--shadow)}
.card:hover::before{transform:scaleX(1)}
.card .ic{
  width:52px;height:52px;border-radius:13px;display:grid;place-items:center;margin-bottom:18px;
  background:linear-gradient(140deg,rgba(230,57,75,.2),rgba(255,122,69,.1));border:1px solid rgba(230,57,75,.3);
}
.card h3{font-size:18.5px;font-weight:800;margin-bottom:12px}
.card li{color:var(--muted);font-size:14px;padding:4px 0 4px 14px;position:relative}
.card li::before{content:"";position:absolute;left:0;top:14px;width:5px;height:5px;border-radius:2px;background:var(--brand)}

/* ---------- 案例 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.case-item{
  position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);aspect-ratio:4/3;
  transition:.28s;
}
.case-item img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.case-item .mask{
  position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;padding:22px;
  background:linear-gradient(180deg,rgba(8,11,19,0) 30%,rgba(8,11,19,.92) 100%);
  transition:.28s;
}
.case-item h3{font-size:18px;font-weight:800;color:#fff}
.case-item p{font-size:12.5px;color:var(--muted);margin-top:6px}
.case-item .go{
  margin-top:12px;display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--brand);font-weight:700;
  opacity:0;transform:translateY(8px);transition:.28s;
}
.case-item:hover img{transform:scale(1.08)}
.case-item:hover{border-color:rgba(230,57,75,.5);box-shadow:var(--shadow)}
.case-item:hover .go{opacity:1;transform:none}
.more-wrap{text-align:center;margin-top:38px}

/* ---------- 关于 ---------- */
.about{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.about-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:46px;align-items:start}
.about-side{position:sticky;top:calc(var(--header-h) + 24px)}
.about-side h3{font-size:26px;font-weight:900;line-height:1.35;margin-bottom:14px}
.about-side p{color:var(--muted);font-size:15px}
.about-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.about-tags span{padding:6px 14px;border-radius:999px;border:1px solid var(--line-2);font-size:13px;color:var(--muted);background:var(--panel)}
.about-text p{color:var(--muted);font-size:15.5px;text-align:justify;margin-bottom:18px}
.about-text p b{color:var(--text)}
.about-text p:first-child::first-letter{
  font-size:44px;font-weight:900;float:left;line-height:1;margin:6px 10px 0 0;
  background:linear-gradient(96deg,#ff8a5c,var(--brand));-webkit-background-clip:text;background-clip:text;color:transparent;
}

/* ---------- 横幅 ---------- */
.banner-strip{
  position:relative;padding:70px 0;text-align:center;overflow:hidden;
  background:url("../img/adbg2.jpg") center/cover no-repeat fixed;
}
.banner-strip::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,14,23,.93),rgba(193,30,43,.55),rgba(10,14,23,.93))}
.banner-strip .wrap{position:relative}
.banner-strip h3{font-size:30px;font-weight:900;letter-spacing:2px}
.banner-strip p{color:rgba(255,255,255,.82);margin-top:14px;font-size:15px}

/* =========================================================
   大数据 API 栏目
   ========================================================= */
.api-sec{background:
  radial-gradient(900px 420px at 12% 0%,rgba(47,216,245,.07),transparent 60%),
  radial-gradient(800px 420px at 88% 100%,rgba(230,57,75,.08),transparent 60%),
  var(--bg2);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.api-sec .sec-tag{color:var(--cyan);background:rgba(47,216,245,.08);border-color:rgba(47,216,245,.3)}
.api-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:34px}
.api-card{
  border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;background:var(--panel);transition:.26s;
}
.api-card:hover{transform:translateY(-5px);border-color:rgba(47,216,245,.35);background:var(--panel-2)}
.api-card .top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.api-card .ic{width:44px;height:44px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(47,216,245,.16),rgba(230,57,75,.1));border:1px solid rgba(47,216,245,.28)}
.method{
  font-family:ui-monospace,Consolas,monospace;font-size:11px;font-weight:800;letter-spacing:.5px;
  padding:3px 9px;border-radius:6px;
}
.m-get{color:#3ddc97;background:rgba(61,220,151,.12);border:1px solid rgba(61,220,151,.35)}
.m-post{color:#f5b93d;background:rgba(245,185,61,.12);border:1px solid rgba(245,185,61,.35)}
.api-card h3{font-size:17px;font-weight:800;margin-bottom:8px}
.api-card .path{
  font-family:ui-monospace,Consolas,monospace;font-size:12.5px;color:var(--cyan);
  background:rgba(47,216,245,.07);border:1px solid rgba(47,216,245,.16);border-radius:8px;padding:7px 11px;margin-bottom:10px;
  word-break:break-all;
}
.api-card p{color:var(--muted);font-size:13.5px}
.api-note{
  display:flex;gap:12px;align-items:flex-start;border:1px dashed rgba(245,185,61,.45);border-radius:12px;
  padding:15px 18px;background:rgba(245,185,61,.06);color:var(--muted);font-size:13.5px;margin-bottom:32px;
}
.api-note b{color:var(--warn)}
.api-actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.btn-cyan{background:linear-gradient(135deg,#0ea5c4,var(--cyan));color:#04222b;box-shadow:0 12px 30px rgba(47,216,245,.28)}
.btn-cyan:hover{transform:translateY(-2px)}

/* ---------- 联系我们 ---------- */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:26px}
.contact-card{border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;background:var(--panel);transition:.25s}
.contact-card:hover{transform:translateY(-4px);border-color:rgba(230,57,75,.4);background:var(--panel-2)}
.contact-card dt{font-size:13px;color:var(--brand);font-weight:800;letter-spacing:1px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.contact-card p{color:var(--muted);font-size:14.5px;padding:3px 0}
.contact-card a:hover{color:var(--brand)}
.link-btn{
  display:inline-flex;align-items:center;gap:8px;margin-top:10px;padding:9px 16px;border-radius:10px;font-size:13.5px;font-weight:700;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;
}
.link-btn.ghost{background:var(--panel-2);border:1px solid var(--line-2);color:var(--text)}
.friendly{display:flex;align-items:center;gap:14px;flex-wrap:wrap;color:var(--dim);font-size:13.5px}
.friendly a{color:var(--muted);border-bottom:1px dashed var(--line-2)}
.friendly a:hover{color:var(--cyan)}

/* ---------- 页脚 ---------- */
.footer{border-top:1px solid var(--line);padding:30px 0;background:#080b13}
.footer .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;color:var(--dim);font-size:13.5px}
.footer a{color:var(--dim);border-bottom:1px solid rgba(255,255,255,.14)}
.footer a:hover{color:var(--muted)}
.totop{
  position:fixed;right:22px;bottom:26px;z-index:110;width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 10px 24px rgba(230,57,75,.35);
  opacity:0;pointer-events:none;transition:.28s;cursor:pointer;border:0;
}
.totop.show{opacity:1;pointer-events:auto}
.totop:hover{transform:translateY(-3px)}

/* ---------- 入场动画 ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* =========================================================
   API 文档页 api.html
   ========================================================= */
.docs{display:grid;grid-template-columns:250px minmax(0,1fr);gap:0;padding-top:var(--header-h);min-height:100vh}
.docs-side{
  position:sticky;top:var(--header-h);height:calc(100vh - var(--header-h));overflow-y:auto;
  border-right:1px solid var(--line);background:#0b101c;padding:26px 18px 40px;
}
.docs-side::-webkit-scrollbar{width:8px}
.docs-side::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:8px}
.side-group{margin-bottom:22px}
.side-group h4{font-size:11.5px;letter-spacing:1.6px;color:var(--dim);font-weight:800;padding:0 10px 8px}
.side-group a{
  display:block;padding:8px 12px;border-radius:9px;color:var(--muted);font-size:14px;
  border-left:2px solid transparent;transition:.18s;
}
.side-group a:hover{color:var(--text);background:var(--panel-2)}
.side-group a.active{color:#fff;background:linear-gradient(90deg,rgba(47,216,245,.14),transparent);border-left-color:var(--cyan)}
.side-group a .m{font-family:ui-monospace,Consolas,monospace;font-size:10.5px;margin-right:7px;opacity:.85}
.docs-main{padding:44px 46px 110px;max-width:960px}
.docs-main h1{font-size:32px;font-weight:900;letter-spacing:.5px;margin-bottom:10px}
.docs-main .lead{color:var(--muted);font-size:15.5px;margin-bottom:26px}
.docs-main h2{
  font-size:23px;font-weight:800;margin:52px 0 18px;padding-top:26px;border-top:1px solid var(--line);
  display:flex;align-items:center;gap:10px;
}
.docs-main h2 .idx{
  font-family:ui-monospace,Consolas,monospace;font-size:13px;color:var(--cyan);
  border:1px solid rgba(47,216,245,.35);border-radius:8px;padding:2px 9px;background:rgba(47,216,245,.07);
}
.docs-main h3{font-size:17.5px;font-weight:800;margin:30px 0 12px}
.docs-main p{color:var(--muted);font-size:15px;margin-bottom:14px;text-align:justify}
.docs-main p b,.docs-main li b{color:var(--text)}
.docs-main ul.list{margin:0 0 16px}
.docs-main ul.list li{position:relative;padding:5px 0 5px 22px;color:var(--muted);font-size:15px}
.docs-main ul.list li::before{content:"";position:absolute;left:2px;top:15px;width:6px;height:6px;border-radius:2px;
  background:linear-gradient(135deg,var(--brand),var(--brand-2))}

.callout{display:flex;gap:12px;border-radius:12px;padding:15px 18px;margin:20px 0;font-size:14px;border:1px solid}
.callout.info{background:rgba(47,216,245,.06);border-color:rgba(47,216,245,.3);color:#b9e9f4}
.callout.warn{background:rgba(245,185,61,.06);border-color:rgba(245,185,61,.38);color:#f3ddb0}
.callout.danger{background:rgba(230,57,75,.07);border-color:rgba(230,57,75,.4);color:#f5c3c9}
.callout svg{flex-shrink:0;margin-top:3px}

.endpoint-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:34px 0 8px}
.endpoint-head code{
  font-family:ui-monospace,Consolas,monospace;font-size:15px;color:var(--text);
  background:var(--panel-2);border:1px solid var(--line);border-radius:9px;padding:7px 14px;word-break:break-all;
}
.endpoint-title{font-size:20px;font-weight:800;margin-bottom:4px}

table.tbl{width:100%;border-collapse:collapse;margin:16px 0 22px;font-size:14px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
table.tbl th{
  text-align:left;background:rgba(255,255,255,.05);color:var(--text);font-weight:800;
  padding:11px 14px;border-bottom:1px solid var(--line);white-space:nowrap;
}
table.tbl td{padding:10px 14px;border-bottom:1px solid rgba(255,255,255,.055);color:var(--muted);vertical-align:top}
table.tbl tr:last-child td{border-bottom:0}
table.tbl tr:hover td{background:rgba(255,255,255,.025)}
table.tbl code{font-family:ui-monospace,Consolas,monospace;font-size:12.5px;color:var(--cyan);background:rgba(47,216,245,.08);padding:2px 7px;border-radius:5px}
.req{color:var(--brand);font-weight:800;font-size:12px}
.opt{color:var(--dim);font-size:12px}

/* 代码块 */
.codeblock{position:relative;margin:14px 0 24px;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#070a12}
.codeblock .cb-head{
  display:flex;align-items:center;justify-content:space-between;padding:9px 14px;
  border-bottom:1px solid var(--line);background:rgba(255,255,255,.03);
}
.codeblock .cb-head span{font-family:ui-monospace,Consolas,monospace;font-size:12px;color:var(--dim)}
.copy-btn{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--muted);cursor:pointer;
  background:var(--panel-2);border:1px solid var(--line);border-radius:7px;padding:4px 11px;transition:.18s;
}
.copy-btn:hover{color:#fff;border-color:var(--line-2)}
.copy-btn.done{color:var(--ok);border-color:rgba(61,220,151,.4)}
.codeblock pre{
  margin:0;padding:18px;overflow-x:auto;font-family:ui-monospace,SFMono-Regular,Consolas,"Courier New",monospace;
  font-size:13px;line-height:1.85;color:#cdd6e6;white-space:pre;
}
.codeblock pre::-webkit-scrollbar{height:8px}
.codeblock pre::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:8px}
.tok-k{color:#7dd3fc}.tok-s{color:#fca5a5}.tok-n{color:#fcd34d}.tok-c{color:#5b6b85;font-style:italic}
.tok-b{color:#c4b5fd}.tok-m{color:#3ddc97}.tok-f{color:#ff9db1}

/* 在线调试台 */
.console{border:1px solid rgba(47,216,245,.28);border-radius:16px;background:linear-gradient(180deg,rgba(20,32,46,.7),rgba(11,16,28,.9));
  padding:24px;margin:22px 0 30px;box-shadow:0 18px 50px rgba(0,0,0,.4)}
.console h3{margin:0 0 6px;font-size:18px;display:flex;align-items:center;gap:10px}
.console .cs-sub{color:var(--dim);font-size:13px;margin-bottom:20px}
.cs-row{display:grid;grid-template-columns:130px 1fr;gap:12px;align-items:center;margin-bottom:13px}
.cs-row label{font-size:13.5px;color:var(--muted)}
.cs-row select,.cs-row input{
  width:100%;background:#0b1220;border:1px solid var(--line-2);border-radius:10px;padding:10px 13px;
  color:var(--text);font-size:14px;font-family:ui-monospace,Consolas,monospace;outline:none;transition:.2s;
}
.cs-row select:focus,.cs-row input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(47,216,245,.14)}
.cs-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:6px}
.cs-status{font-family:ui-monospace,Consolas,monospace;font-size:12.5px;color:var(--dim)}
.cs-status .ok{color:var(--ok)}.cs-status .err{color:var(--brand)}
.spinner{width:14px;height:14px;border:2px solid rgba(47,216,245,.25);border-top-color:var(--cyan);border-radius:50%;
  display:inline-block;vertical-align:-2px;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.cs-out{margin-top:18px}
.cs-tabs{display:flex;gap:6px;margin-bottom:10px}
.cs-tabs button{
  font-size:12.5px;color:var(--muted);background:var(--panel);border:1px solid var(--line);
  border-radius:8px;padding:6px 14px;cursor:pointer;transition:.18s;
}
.cs-tabs button.active{color:#04222b;background:var(--cyan);border-color:var(--cyan);font-weight:800}
.cs-out .codeblock{margin:0}

/* 文档页移动端目录开关（桌面隐藏） */
.docs-toggle{display:none}
@media (max-width:768px){
  .docs-toggle{
    display:flex;align-items:center;justify-content:space-between;width:100%;
    padding:13px 18px;font-size:14.5px;font-weight:800;color:var(--text);
    background:rgba(20,28,45,.92);border-bottom:1px solid var(--line);position:sticky;top:var(--header-h);z-index:114;cursor:pointer;
  }
}
.steps{counter-reset:s;margin:18px 0 24px}
.steps li{
  counter-increment:s;position:relative;padding:0 0 26px 52px;color:var(--muted);font-size:15px;
}
.steps li::before{
  content:counter(s);position:absolute;left:0;top:-2px;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  font-weight:900;font-size:14px;color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 6px 16px rgba(230,57,75,.3);
}
.steps li::after{
  content:"";position:absolute;left:16.5px;top:36px;bottom:6px;width:1px;background:linear-gradient(var(--line-2),transparent);
}
.steps li:last-child::after{display:none}
.steps li b{display:block;color:var(--text);font-size:15.5px;margin-bottom:4px}

/* FAQ */
.faq{border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-bottom:14px;background:var(--panel)}
.faq summary{
  cursor:pointer;padding:15px 18px;font-size:15px;font-weight:700;color:var(--text);
  display:flex;align-items:center;justify-content:space-between;gap:14px;list-style:none;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:20px;color:var(--brand);transition:.2s}
.faq[open] summary::after{transform:rotate(45deg)}
.faq .faq-body{padding:0 18px 16px;color:var(--muted);font-size:14.5px}
.faq .faq-body pre{background:#070a12;border:1px solid var(--line);border-radius:10px;padding:14px;overflow-x:auto;
  font-family:ui-monospace,Consolas,monospace;font-size:12.5px;color:#cdd6e6;margin-top:10px}

/* 更新日志 */
.changelog{border-left:2px solid var(--line-2);margin:18px 0 8px;padding-left:26px}
.changelog .cl{position:relative;padding-bottom:26px}
.changelog .cl::before{content:"";position:absolute;left:-32px;top:7px;width:10px;height:10px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 0 4px rgba(47,216,245,.16)}
.changelog .cl b{color:var(--text);font-size:15px}
.changelog .cl time{font-family:ui-monospace,Consolas,monospace;font-size:12px;color:var(--dim);margin-left:10px}
.changelog .cl p{margin:6px 0 0;font-size:14px}

/* badge 徽标行 */
.badges{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:22px}
.badge{font-family:ui-monospace,Consolas,monospace;font-size:12px;padding:4px 11px;border-radius:8px;
  border:1px solid var(--line-2);color:var(--muted);background:var(--panel)}
.badge.c{color:var(--cyan);border-color:rgba(47,216,245,.35);background:rgba(47,216,245,.07)}
.badge.r{color:var(--brand);border-color:rgba(230,57,75,.35);background:rgba(230,57,75,.07)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero h1{font-size:40px}
  .cards{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .api-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:repeat(2,1fr)}
  .metrics .wrap{grid-template-columns:repeat(2,1fr)}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-visual{max-width:620px}
  .about-grid{grid-template-columns:1fr}
  .about-side{position:static}
  .docs{grid-template-columns:220px minmax(0,1fr)}
  .docs-main{padding:36px 30px 90px}
}
@media (max-width:768px){
  .nav,.header-cta{display:none}
  .burger{display:block}
  section.block{padding:70px 0}
  .hero{padding-top:calc(var(--header-h) + 54px)}
  .hero h1{font-size:32px}
  .sec-head h2{font-size:26px}
  .metrics .wrap{grid-template-columns:repeat(2,1fr)}
  .banner-strip{background-attachment:scroll}
  .docs{grid-template-columns:1fr}
  .docs-side{
    position:fixed;left:0;right:0;top:var(--header-h);height:auto;max-height:0;overflow:hidden;
    border-right:0;border-bottom:1px solid var(--line);z-index:115;padding:0 18px;transition:max-height .32s ease;
  }
  .docs-side.open{max-height:70vh;overflow-y:auto;padding:18px}
  .docs-toggle{
    display:flex;align-items:center;justify-content:space-between;width:100%;
    padding:13px 18px;font-size:14.5px;font-weight:800;color:var(--text);
    background:rgba(20,28,45,.92);border-bottom:1px solid var(--line);position:sticky;top:var(--header-h);z-index:114;cursor:pointer;
  }
  .docs-main{padding:30px 20px 90px}
  .docs-main h1{font-size:25px}
  .cs-row{grid-template-columns:1fr}
  .cs-row label{margin-bottom:-6px}
}
@media (max-width:560px){
  .cards,.case-grid,.api-grid,.contact-grid{grid-template-columns:1fr}
  .metrics .wrap{grid-template-columns:repeat(2,1fr);gap:10px}
  .hero-points{gap:8px 16px}
  .hero-btns .btn{width:100%;justify-content:center}
  .footer .wrap{justify-content:center;text-align:center}
  .stat-row{grid-template-columns:1fr}
}