:root {
    --orange-primary: #ff7a2f;
    --orange-dark: #e6671d;
    --orange-soft: #fff4ea;
    --ink: #1f2937;
    --muted: #6b7280;
    --line: #eadfd4;
    --success: #117a37;
    --bg: linear-gradient(180deg, #fff8f3 0%, #ffffff 220px);
    --radius: 18px;
    --shadow: 0 14px 32px rgba(230, 103, 29, 0.08);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--ink);
    background: var(--bg);
}
a { color: var(--orange-dark); text-decoration: none; }
a:hover { text-decoration: underline; }
.container {
    width: min(1100px, calc(100% - 32px));
    margin: 0 auto;
}
.topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(255, 122, 47, 0.96);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 18px rgba(230, 103, 29, 0.16);
}
.topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    min-height: 68px;
}
.brand {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
}
.nav-links {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
}
.nav-links a {
    color: rgba(255,255,255,0.92);
    font-size: 14px;
}
.hero {
    padding: 56px 0 28px;
}
.hero-card,
.panel,
.doc-card,
.empty-card {
    background: rgba(255,255,255,0.92);
    border: 1px solid rgba(255, 122, 47, 0.14);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.hero-card {
    padding: 34px;
    display: grid;
    grid-template-columns: 1.4fr 0.9fr;
    gap: 26px;
}
.kicker {
    display: inline-flex;
    padding: 6px 12px;
    border-radius: 999px;
    background: var(--orange-soft);
    color: var(--orange-dark);
    font-size: 13px;
    font-weight: 700;
}
.hero h1 {
    margin: 16px 0 12px;
    font-size: clamp(30px, 4.8vw, 46px);
    line-height: 1.12;
}
.hero p {
    margin: 0;
    color: var(--muted);
    font-size: 15px;
    line-height: 1.8;
}
.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 24px;
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 18px;
    border-radius: 12px;
    border: 1px solid transparent;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
}
.btn-primary {
    background: var(--orange-primary);
    color: #fff;
}
.btn-primary:hover { text-decoration: none; background: var(--orange-dark); }
.btn-secondary {
    border-color: rgba(255, 122, 47, 0.25);
    background: #fff;
    color: var(--orange-dark);
}
.stat-grid {
    display: grid;
    gap: 14px;
}
.stat-box {
    padding: 18px;
    border-radius: 16px;
    background: linear-gradient(180deg, #fff8f2 0%, #fff 100%);
    border: 1px solid var(--line);
}
.stat-label {
    color: var(--muted);
    font-size: 13px;
}
.stat-value {
    margin-top: 8px;
    font-size: 24px;
    font-weight: 800;
}
.main-grid {
    display: grid;
    gap: 22px;
    padding-bottom: 48px;
}
.panel {
    padding: 22px;
}
.section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 16px;
}
.section-head h2,
.section-head h3,
.doc-card h2,
.doc-card h3 {
    margin: 0;
    font-size: 20px;
}
.section-note {
    color: var(--muted);
    font-size: 14px;
}
.api-table-wrap,
.doc-table-wrap {
    overflow: auto;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: #fff;
}
.table {
    width: 100%;
    border-collapse: collapse;
    min-width: 720px;
}
.table th,
.table td {
    padding: 14px 16px;
    border-bottom: 1px solid #f2e7dd;
    text-align: left;
    vertical-align: top;
    font-size: 14px;
    line-height: 1.6;
}
.table thead th {
    background: var(--orange-soft);
    color: #8a4f22;
    font-size: 13px;
    font-weight: 800;
    white-space: nowrap;
}
.table tbody tr:last-child td { border-bottom: 0; }
.badge {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 0 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    white-space: nowrap;
}
.badge-post { background: #e8fff0; color: #117a37; }
.badge-live { background: #eef7ff; color: #155eef; }
.badge-free { background: #fff4ea; color: #a04a12; }
.card-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}
.mini-card {
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 18px;
    background: #fff;
}
.mini-card h3 {
    margin: 0 0 10px;
    font-size: 16px;
}
.mini-card p,
.list,
.doc-meta,
.doc-card p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.75;
}
.list {
    padding-left: 18px;
}
.list li + li { margin-top: 8px; }
.doc-shell {
    padding: 36px 0 48px;
}
.doc-card {
    padding: 28px;
    margin-bottom: 20px;
}
.doc-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 12px;
    margin: 12px 0 0;
}
.doc-meta span {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 0 12px;
    border-radius: 999px;
    background: #fff;
    border: 1px solid var(--line);
}
.code-block {
    margin: 14px 0 0;
    padding: 16px;
    border-radius: 14px;
    background: #1e1f24;
    color: #f8f8f2;
    overflow: auto;
    font: 13px/1.7 Consolas, Monaco, monospace;
}
.doc-anchor-list {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 18px;
}
.doc-anchor-list a {
    display: inline-flex;
    min-height: 36px;
    align-items: center;
    padding: 0 14px;
    border-radius: 999px;
    background: var(--orange-soft);
    color: var(--orange-dark);
    font-size: 13px;
    font-weight: 700;
}
.playground-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin-top: 14px;
}
.field {
    display: grid;
    gap: 8px;
}
.field-full {
    grid-column: 1 / -1;
}
.field label {
    font-size: 13px;
    font-weight: 700;
    color: #8a4f22;
}
.input,
.select {
    width: 100%;
    min-height: 44px;
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: #fff;
    color: var(--ink);
    font: inherit;
}
.input:focus,
.select:focus {
    outline: none;
    border-color: var(--orange-primary);
    box-shadow: 0 0 0 3px rgba(255, 122, 47, 0.12);
}
.playground-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 18px;
}
.result-box {
    margin-top: 18px;
    padding: 14px 16px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: #fff;
}
.result-box[hidden] {
    display: none;
}
.result-title {
    margin: 0 0 10px;
    font-size: 14px;
    font-weight: 800;
    color: #8a4f22;
}
.result-pre {
    margin: 0;
    white-space: pre-wrap;
    word-break: break-word;
    color: var(--ink);
    font: 13px/1.7 Consolas, Monaco, monospace;
}
.inline-link {
    display: inline-flex;
    margin-top: 10px;
    font-size: 13px;
    font-weight: 700;
}
.footer {
    padding: 18px 0 32px;
    text-align: center;
    color: var(--muted);
    font-size: 13px;
}
.empty-card {
    padding: 34px;
    text-align: center;
}
.empty-card h1 {
    margin: 0 0 12px;
    font-size: 34px;
}
.empty-card p {
    margin: 0;
    color: var(--muted);
    line-height: 1.8;
}
@media (max-width: 900px) {
    .hero-card {
        grid-template-columns: 1fr;
        padding: 26px;
    }
    .card-grid {
        grid-template-columns: 1fr;
    }
}
@media (max-width: 768px) {
    .table {
        min-width: 0;
    }
    .table thead {
        display: none;
    }
    .table,
    .table tbody,
    .table tr,
    .table td {
        display: block;
        width: 100%;
    }
    .table tbody tr {
        padding: 10px 12px;
        border-bottom: 1px solid #f2e7dd;
    }
    .table tbody tr:last-child {
        border-bottom: 0;
    }
    .table td {
        border-bottom: 0;
        padding: 8px 0;
    }
    .table td::before {
        content: attr(data-label);
        display: block;
        margin-bottom: 4px;
        color: #8a4f22;
        font-size: 12px;
        font-weight: 800;
        line-height: 1.4;
    }
}
@media (max-width: 640px) {
    .topbar-inner {
        min-height: auto;
        padding: 14px 0;
        align-items: flex-start;
        flex-direction: column;
    }
    .nav-links {
        gap: 12px;
    }
    .hero {
        padding-top: 34px;
    }
    .panel,
    .doc-card,
    .empty-card {
        padding: 18px;
    }
    .playground-grid {
        grid-template-columns: 1fr;
    }
}