/*!
 * 易支付 · home 模板「开发文档首页」样式
 * 存放位置：template/home/doc/assets/doc.css
 * 设计语言与 template/home 首页一致（indigo→violet），排版偏开发者文档风格。
 */

:root{
    --bg:#f6f8fc;
    --card:#ffffff;
    --fg:#0f172a;
    --fg-soft:#334155;
    --muted:#64748b;
    --line:#e5e7eb;
    --brand:#5b6ef5;
    --brand2:#7c3aed;
    --brand-soft:#eef2ff;
    --radius:14px;
    --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono","Courier New",monospace;
    --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Roboto,Arial,sans-serif;
}

*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
    font-family:var(--sans);
    background:var(--bg);
    color:var(--fg);
    font-size:15px;line-height:1.75;
    -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px;}

/* ============ 顶栏 ============ */
.topbar{
    position:sticky;top:0;z-index:50;
    background:rgba(255,255,255,.86);
    backdrop-filter:saturate(180%) blur(12px);
    border-bottom:1px solid var(--line);
}
.bar-inner{display:flex;align-items:center;justify-content:space-between;height:60px;gap:16px;}
.brand{display:flex;align-items:center;gap:9px;font-weight:700;font-size:16px;color:var(--fg);}
.brand .mark{
    width:28px;height:28px;border-radius:8px;
    background:linear-gradient(135deg,var(--brand),var(--brand2));
    color:#fff;display:inline-flex;align-items:center;justify-content:center;
    font-size:14px;font-weight:700;
}
.brand em{
    font-style:normal;font-size:12px;font-weight:600;color:var(--brand);
    background:var(--brand-soft);padding:3px 9px;border-radius:999px;margin-left:2px;
}
.brand.light{color:#fff;}
.bar-links{display:flex;align-items:center;gap:22px;}
.bar-links a{color:var(--muted);font-size:14px;transition:color .15s;}
.bar-links a:hover{color:var(--brand);}
.bar-links .btn{
    background:linear-gradient(135deg,var(--brand),var(--brand2));
    color:#fff;padding:8px 18px;border-radius:9px;font-weight:600;font-size:14px;
    box-shadow:0 6px 16px rgba(91,110,245,.28);transition:transform .15s,box-shadow .15s;
}
.bar-links .btn:hover{transform:translateY(-1px);box-shadow:0 8px 22px rgba(91,110,245,.36);color:#fff;}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:64px 0 56px;background:#fff;border-bottom:1px solid var(--line);}
.blob{position:absolute;border-radius:50%;filter:blur(60px);opacity:.32;pointer-events:none;}
.b1{width:340px;height:340px;background:#5b6ef5;top:-120px;right:-60px;}
.b2{width:300px;height:300px;background:#7c3aed;bottom:-140px;left:-80px;}
.hero-inner{position:relative;}
.eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    background:var(--brand-soft);color:var(--brand);
    font-family:var(--mono);font-size:12px;letter-spacing:.04em;
    padding:6px 14px;border-radius:999px;font-weight:600;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:#22c55e;box-shadow:0 0 0 3px rgba(34,197,94,.18);}
.hero h1{font-size:40px;line-height:1.25;margin:18px 0 12px;letter-spacing:-.02em;}
.grad{background:linear-gradient(135deg,var(--brand),var(--brand2));-webkit-background-clip:text;background-clip:text;color:transparent;}
.lead{font-size:16.5px;color:var(--muted);max-width:640px;margin:0 0 22px;}
.api-url{
    display:inline-flex;align-items:center;gap:10px;
    background:#0f172a;border:1px solid #1e293b;
    padding:9px 14px;border-radius:10px;margin-bottom:26px;
}
.api-url span{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#94a3b8;}
.api-url code{font-family:var(--mono);font-size:13px;color:#a5d6ff;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;}
.btn{
    display:inline-block;padding:11px 22px;border-radius:10px;
    font-weight:600;font-size:14.5px;transition:.15s;
}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 8px 20px rgba(91,110,245,.3);}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 26px rgba(91,110,245,.4);}
.btn-ghost{background:#fff;color:var(--fg-soft);border:1px solid var(--line);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);}

/* ============ 通用区块 ============ */
.block{padding:52px 0;}
.divider{height:1px;background:var(--line);}
.sec-head{text-align:center;margin-bottom:30px;}
.kicker{font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;color:var(--brand);font-weight:700;}
.sec-head h2{font-size:26px;margin:8px 0 0;letter-spacing:-.01em;}

/* ============ 三步 ============ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.step{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;}
.step .n{
    width:30px;height:30px;border-radius:9px;
    background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;
    display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;margin-bottom:12px;
}
.step h3{font-size:16px;margin:0 0 6px;}
.step p{margin:0;color:var(--muted);font-size:14px;line-height:1.7;}

/* ============ 章节卡片 ============ */
.group{margin-bottom:34px;}
.group-title{
    font-size:13px;letter-spacing:.1em;text-transform:uppercase;
    color:var(--muted);font-weight:700;margin:0 0 14px;
    display:flex;align-items:center;gap:10px;
}
.group-title:after{content:"";flex:1;height:1px;background:var(--line);}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
.card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
    padding:18px;display:block;color:inherit;
    transition:transform .16s,border-color .16s,box-shadow .16s;
}
.card:hover{
    transform:translateY(-3px);
    border-color:#c7d2fe;
    box-shadow:0 14px 30px rgba(15,23,42,.09);
}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:8px;}
.card h3{font-size:15.5px;margin:0;font-weight:650;}
.card .arrow{color:#c7d2fe;font-size:16px;transition:transform .16s;flex-shrink:0;}
.card:hover .arrow{transform:translateX(4px);color:var(--brand);}
.card p{margin:7px 0 11px;color:var(--muted);font-size:13.5px;line-height:1.65;}
.card-api{
    font-family:var(--mono);font-size:11.5px;color:var(--brand);
    background:var(--brand-soft);padding:3px 8px;border-radius:6px;
}

/* ============ 页脚 ============ */
.foot{background:#0f172a;color:#cbd5e1;padding:44px 0 22px;margin-top:20px;}
.foot-inner{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;flex-wrap:wrap;}
.foot .brand{color:#fff;}
.foot p{color:#94a3b8;font-size:13.5px;margin:10px 0 0;max-width:320px;}
.foot-links{display:flex;gap:20px;flex-wrap:wrap;}
.foot-links a{color:#94a3b8;font-size:14px;transition:color .15s;}
.foot-links a:hover{color:#fff;}
.copy{
    margin-top:26px;padding-top:18px;border-top:1px solid rgba(255,255,255,.08);
    color:#64748b;font-size:12.5px;text-align:center;
}

/* ============ 响应式 ============ */
@media (max-width:960px){
    .cards{grid-template-columns:repeat(2,1fr);}
    .steps{grid-template-columns:1fr;}
}
@media (max-width:640px){
    .wrap{padding:0 16px;}
    .hero{padding:44px 0 38px;}
    .hero h1{font-size:29px;}
    .lead{font-size:15px;}
    .api-url{max-width:100%;overflow-x:auto;}
    .cards{grid-template-columns:1fr;}
    .bar-links{gap:14px;}
    .bar-links a:not(.btn){display:none;}
}

/* ============================================================
   章节页布局（?doc=xxx，home 模板自带文档）
   ============================================================ */
.doc-layout{display:flex;gap:28px;align-items:flex-start;padding:26px 24px 64px;}
.doc-side{
    width:230px;flex-shrink:0;position:sticky;top:76px;
    max-height:calc(100vh - 100px);overflow-y:auto;
    background:var(--card);border:1px solid var(--line);
    border-radius:var(--radius);padding:14px 12px;
}
.nav-group{margin-bottom:14px;}
.nav-group:last-child{margin-bottom:0;}
.nav-group-title{
    font-size:11px;letter-spacing:.1em;text-transform:uppercase;
    color:var(--muted);font-weight:700;padding:0 10px;margin-bottom:5px;
}
.doc-nav ul{list-style:none;margin:0;padding:0;}
.doc-nav li a{
    display:block;padding:7px 10px;border-radius:8px;
    color:var(--fg-soft);font-size:14px;transition:background .15s,color .15s;
}
.doc-nav li a:hover{background:var(--brand-soft);color:var(--brand);}
.doc-nav li a.on{
    background:linear-gradient(135deg,var(--brand),var(--brand2));
    color:#fff;font-weight:600;box-shadow:0 4px 12px rgba(91,110,245,.3);
}

.doc-main{
    flex:1;min-width:0;background:var(--card);
    border:1px solid var(--line);border-radius:var(--radius);padding:32px 36px;
}

/* V1 旧版提示条 */
.doc-notice{
    display:flex;align-items:flex-start;gap:12px;flex-wrap:wrap;
    margin:0 0 20px;padding:14px 16px;
    background:#fffbeb;border:1px solid #fde68a;border-radius:10px;
}
.doc-notice .badge{
    flex:none;background:#f59e0b;color:#fff;
    font-size:11px;font-weight:700;letter-spacing:.04em;
    padding:3px 9px;border-radius:999px;margin-top:3px;
}
.doc-notice p{
    margin:0;flex:1;min-width:220px;
    font-size:13.5px;line-height:1.7;color:#92400e;
}
.doc-notice p b{color:#78350f;}
.doc-notice .notice-link{
    flex:none;align-self:center;white-space:nowrap;
    font-size:13px;font-weight:600;color:#b45309;
}
.doc-notice .notice-link:hover{color:#92400e;text-decoration:underline;}

/* 面包屑 */
.doc-crumb{
    font-size:13px;color:var(--muted);margin-bottom:6px;
    display:flex;align-items:center;gap:7px;flex-wrap:wrap;
}
.doc-crumb a{color:var(--brand);}
.doc-crumb span{color:#cbd5e1;}

/* 正文排版 */
.doc-content{font-size:15px;line-height:1.85;color:var(--fg-soft);}
.doc-content h1{
    font-size:27px;font-weight:700;color:var(--fg);letter-spacing:-.02em;
    margin:0 0 20px;padding-bottom:14px;border-bottom:1px solid var(--line);
}
.doc-content h2{font-size:20px;font-weight:650;color:var(--fg);margin:34px 0 12px;}
.doc-content h3{font-size:16.5px;font-weight:650;color:var(--fg);margin:26px 0 10px;}
.doc-content h1 a,.doc-content h2 a,.doc-content h3 a{color:inherit;text-decoration:none;}
.doc-content h1 a:hover,.doc-content h2 a:hover,.doc-content h3 a:hover{color:var(--brand);}
.doc-content p{margin:11px 0;}
.doc-content ul,.doc-content ol{margin:11px 0;padding-left:22px;}
.doc-content li{margin:5px 0;}
.doc-content a{color:var(--brand);}
.doc-content a:hover{text-decoration:underline;}
.doc-content hr{border:0;border-top:1px solid var(--line);margin:26px 0;}
.doc-content strong{font-weight:650;color:var(--fg);}

.doc-content table{
    width:100%;margin:16px 0;border-collapse:separate;border-spacing:0;
    border:1px solid var(--line);border-radius:10px;overflow:hidden;font-size:13.5px;
}
.doc-content table th{
    background:#f8fafc;color:#334155;font-weight:650;text-align:left;
    padding:10px 13px;border-bottom:1px solid var(--line);border-right:1px solid var(--line);
}
.doc-content table td{
    padding:10px 13px;border-bottom:1px solid #f1f5f9;border-right:1px solid #f1f5f9;vertical-align:top;
}
.doc-content table tr:last-child td{border-bottom:0;}
.doc-content table th:last-child,.doc-content table td:last-child{border-right:0;}
.doc-content table tbody tr:hover{background:#f8fafc;}

.doc-content blockquote{
    margin:15px 0;padding:11px 15px;
    border-left:3px solid var(--brand);background:var(--brand-soft);
    border-radius:0 10px 10px 0;color:#3730a3;font-size:14px;
}

/* 行内代码 */
.doc-content p code,.doc-content li code,.doc-content td code{
    font-family:var(--mono);background:#f1f5f9;border:1px solid var(--line);
    color:#b91c1c;padding:1.5px 6px;border-radius:5px;font-size:12.5px;
}

/* ============================================================
   代码块（自带高亮，沿用 home 首页 .code 的视觉风格）
   ============================================================ */
.doc-content pre{margin:18px 0;}

.epay-code{
    position:relative;
    display:block;
    width:100%;
    max-width:100%;
    box-sizing:border-box;
    background:#0f172a;
    color:#e2e8f0;
    border:1px solid #1e293b;
    border-radius:14px;
    padding:20px 22px 20px 22px;
    font-family:ui-monospace,"SFMono-Regular",Consolas,Menlo,"Liberation Mono",monospace;
    font-size:13.5px;
    line-height:1.7;
    white-space:pre;
    overflow-x:auto;
    overflow-wrap:normal;
    word-break:normal;
    tab-size:4;
}
.epay-code code{
    font-family:inherit;
    font-size:inherit;
    line-height:inherit;
    color:inherit;
    background:none;border:0;padding:0;
    white-space:inherit;
}

/* 语言标签（与代码留出间距） */
.epay-code[data-lang]:not([data-lang="text"])::before{
    content:attr(data-lang);
    position:absolute;
    top:14px;right:64px;
    font-family:ui-monospace,"SFMono-Regular",Consolas,Menlo,monospace;
    font-size:10.5px;letter-spacing:.08em;
    color:#64748b;text-transform:uppercase;
    pointer-events:none;user-select:none;
}

/* 语法着色（沿用 home 首页 .code 的调色板） */
.tok-key     { color:#7dd3fc; }              /* JSON 键：sky-300 */
.tok-str     { color:#86efac; }              /* 字符串：green-300（home .s） */
.tok-num     { color:#fcd34d; }              /* 数字：amber-300 */
.tok-kw      { color:#c4b5fd; }              /* 关键字：violet-300（home .k） */
.tok-punct   { color:#94a3b8; }              /* 标点：slate-400 */
.tok-comment { color:#64748b; font-style:italic; }  /* 注释（home .c） */
.tok-var     { color:#fdba74; }              /* 变量：orange-300 */
.tok-fn      { color:#f0abfc; }              /* 函数：fuchsia-300 */
.tok-tag     { color:#86efac; }              /* 标签：green-300 */
.tok-attr    { color:#7dd3fc; }              /* 属性：sky-300 */

/* 复制按钮（与首页风格一致：透明底+细描边） */
.doc-copy-btn{
    position:absolute;top:11px;right:11px;
    height:28px;padding:0 12px;
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
    font-size:12px;font-weight:600;line-height:26px;
    color:#94a3b8;background:transparent;
    border:1px solid #334155;border-radius:7px;
    cursor:pointer;opacity:0;transition:opacity .15s,color .15s,border-color .15s;
}
.epay-code:hover .doc-copy-btn{opacity:1;}
.doc-copy-btn:hover{color:#e2e8f0;border-color:#64748b;}
.doc-copy-btn.ok{color:#86efac;border-color:#86efac;opacity:1;}

/* 上/下一篇 */
.doc-pager{
    display:flex;justify-content:space-between;gap:14px;
    margin-top:36px;padding-top:22px;border-top:1px solid var(--line);
}
.pager-item{
    flex:1;padding:12px 16px;border:1px solid var(--line);border-radius:10px;
    color:var(--fg-soft);font-size:14px;font-weight:600;transition:.15s;
    background:#fff;
}
.pager-item span{display:block;font-size:11.5px;color:var(--muted);font-weight:600;margin-bottom:3px;}
a.pager-item:hover{border-color:var(--brand);color:var(--brand);}
.pager-item.next{text-align:right;}
.pager-item.empty{opacity:.45;background:#f8fafc;}

/* 移动端目录按钮 */
.doc-menu-btn{
    display:none;position:fixed;right:18px;bottom:22px;z-index:60;
    width:46px;height:46px;border:0;border-radius:50%;
    background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;
    font-size:19px;cursor:pointer;box-shadow:0 8px 22px rgba(91,110,245,.4);
}

/* 章节页响应式 */
@media (max-width:1024px){
    .doc-layout{padding:20px 16px 56px;}
    .doc-side{
        position:fixed;left:0;top:60px;bottom:0;z-index:55;
        width:250px;max-height:none;border-radius:0;border-left:0;
        transform:translateX(-100%);transition:transform .22s ease;
        box-shadow:0 0 40px rgba(15,23,42,.25);
    }
    .doc-side.open{transform:translateX(0);}
    .doc-main{padding:24px 20px;}
    .doc-menu-btn{display:block;}
}
@media (max-width:640px){
    .doc-layout{padding:16px 12px 48px;}
    .doc-main{padding:20px 16px;border-radius:12px;}
    .doc-content h1{font-size:22px;}
    .doc-content h2{font-size:18px;}
    .doc-pager{flex-direction:column;gap:10px;}
    .pager-item.next{text-align:left;}
}