/* ===== 变量 ===== */
:root {
    --bg: #ffffff;
    --bg-subtle: #f9fafb;
    --bg-sidebar: #f3f4f6;
    --bg-code: #1e293b;
    --text: #111827;
    --text-muted: #6b7280;
    --text-light: #9ca3af;
    --border: #e5e7eb;
    --primary: #3b82f6;
    --primary-bg: #eff6ff;
    --green: #10b981;
    --green-bg: #ecfdf5;
    --orange: #f59e0b;
    --orange-bg: #fffbeb;
    --purple: #8b5cf6;
    --purple-bg: #f5f3ff;
    --red: #ef4444;
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans SC', sans-serif;
    --font-mono: 'SFMono-Regular', 'Fira Code', Consolas, monospace;
    --nav-h: 56px;
    --sidebar-w: 260px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 14px; }
body { font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.6; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; }
::selection { background: var(--primary); color: #fff; }

/* ===== 顶部导航 ===== */
.top-nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--nav-h);
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    z-index: 100;
    display: flex;
    align-items: center;
    padding: 0 24px;
    gap: 16px;
}

.nav-logo {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.nav-logo span { color: var(--primary); }

.nav-version {
    font-size: 0.72rem;
    background: var(--bg-subtle);
    border: 1px solid var(--border);
    padding: 2px 8px;
    border-radius: 10px;
    color: var(--text-muted);
    white-space: nowrap;
}

.nav-links {
    display: flex;
    gap: 4px;
    margin-left: 24px;
}

.nav-links a {
    font-size: 0.88rem;
    padding: 6px 12px;
    border-radius: 6px;
    color: var(--text-muted);
    transition: all 0.15s;
}

.nav-links a:hover { background: var(--bg-subtle); color: var(--text); }
.nav-links a.active { background: var(--primary-bg); color: var(--primary); font-weight: 500; }

.nav-spacer { flex: 1; }

.nav-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

.btn {
    font-size: 0.85rem;
    padding: 6px 14px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text);
    transition: all 0.15s;
}

.btn:hover { background: var(--bg-subtle); }

.btn-primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.btn-primary:hover { opacity: 0.9; }

.nav-mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.3rem;
    color: var(--text);
}

/* ===== 主布局 ===== */
.main-layout {
    margin-top: var(--nav-h);
    display: flex;
    min-height: calc(100vh - var(--nav-h));
}

/* ===== 左侧栏 ===== */
.sidebar {
    width: var(--sidebar-w);
    min-width: var(--sidebar-w);
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    overflow-y: auto;
    height: calc(100vh - var(--nav-h));
    position: sticky;
    top: var(--nav-h);
    padding: 16px 0;
}

.sidebar-search {
    padding: 0 12px 12px;
}

.sidebar-search input {
    width: 100%;
    padding: 7px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.82rem;
    background: var(--bg);
    outline: none;
}

.sidebar-search input:focus { border-color: var(--primary); }

.sidebar-group { margin-bottom: 8px; }

.sidebar-group-title {
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-light);
    padding: 8px 16px 4px;
}

.sidebar-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    font-size: 0.85rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s;
}

.sidebar-item:hover { background: rgba(0,0,0,0.04); color: var(--text); }
.sidebar-item.active { background: var(--primary-bg); color: var(--primary); font-weight: 500; }

.sidebar-item .method {
    font-size: 0.65rem;
    font-weight: 600;
    padding: 1px 5px;
    border-radius: 3px;
}

.method-get { background: var(--green-bg); color: var(--green); }
.method-post { background: var(--orange-bg); color: var(--orange); }

/* ===== 内容区 ===== */
.content {
    flex: 1;
    min-width: 0;
    padding: 32px 40px;
    max-width: 960px;
}

/* ===== API列表页 ===== */
.page-header {
    margin-bottom: 28px;
}

.page-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.page-header p {
    color: var(--text-muted);
    font-size: 0.92rem;
}

.search-box {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-subtle);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 16px;
    margin-bottom: 24px;
    cursor: pointer;
    transition: border-color 0.15s;
}

.search-box:hover { border-color: var(--primary); }

.search-box svg { color: var(--text-light); flex-shrink: 0; }
.search-box span { color: var(--text-light); font-size: 0.9rem; }
.search-box kbd { font-size: 0.72rem; background: #fff; border: 1px solid var(--border); padding: 1px 6px; border-radius: 4px; color: var(--text-muted); margin-left: auto; }

.filter-tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.filter-tag {
    font-size: 0.82rem;
    padding: 5px 12px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text-muted);
    transition: all 0.15s;
}

.filter-tag:hover { border-color: var(--text-muted); color: var(--text); }
.filter-tag.active { background: var(--primary-bg); border-color: var(--primary); color: var(--primary); font-weight: 500; }

.api-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 12px;
}

.api-card {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.15s;
}

.api-card:hover { border-color: var(--primary); box-shadow: 0 2px 8px rgba(59,130,246,0.08); }

.api-card-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: var(--primary-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    flex-shrink: 0;
}

.api-card-body { flex: 1; min-width: 0; }

.api-card-name {
    font-size: 0.92rem;
    font-weight: 500;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.api-card-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.api-card-tags {
    display: flex;
    gap: 4px;
    margin-top: 6px;
}

.tag-hot { font-size: 0.68rem; background: var(--red); color: #fff; padding: 1px 6px; border-radius: 3px; font-weight: 500; }
.tag-exclusive { font-size: 0.68rem; background: var(--purple); color: #fff; padding: 1px 6px; border-radius: 3px; font-weight: 500; }

/* ===== API详情页 ===== */
.detail-header {
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.detail-title {
    font-size: 1.3rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
}

.detail-desc {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 16px;
}

.detail-url {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-subtle);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 10px 14px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    overflow-x: auto;
}

.detail-url .method-badge {
    font-size: 0.72rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 4px;
    flex-shrink: 0;
}

.detail-url .url-text { flex: 1; color: var(--text); word-break: break-all; }

.detail-url .copy-btn {
    font-size: 0.78rem;
    padding: 3px 10px;
    border-radius: 4px;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text-muted);
    flex-shrink: 0;
}

.detail-url .copy-btn:hover { color: var(--text); }

/* 参数表 */
.detail-section {
    margin-bottom: 28px;
}

.detail-section h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.params-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    overflow: hidden;
}

.params-table th {
    text-align: left;
    background: var(--bg-subtle);
    padding: 8px 12px;
    font-weight: 500;
    color: var(--text-muted);
    font-size: 0.8rem;
    border-bottom: 1px solid var(--border);
}

.params-table td {
    padding: 8px 12px;
    border-bottom: 1px solid var(--border);
}

.params-table tr:last-child td { border-bottom: none; }

.param-required { color: var(--red); font-size: 0.78rem; }
.param-optional { color: var(--text-light); font-size: 0.78rem; }
.param-name { font-family: var(--font-mono); font-weight: 500; }
.param-type { color: var(--text-muted); font-size: 0.82rem; }

/* 试一试 */
.try-section {
    background: var(--bg-subtle);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 28px;
}

.try-section h3 { margin-bottom: 12px; }

.try-inputs { margin-bottom: 12px; }

.try-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.try-row label {
    font-size: 0.82rem;
    font-family: var(--font-mono);
    min-width: 80px;
    color: var(--text-muted);
}

.try-row input {
    flex: 1;
    padding: 6px 10px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 0.85rem;
    font-family: var(--font-mono);
    outline: none;
    background: var(--bg);
}

.try-row input:focus { border-color: var(--primary); }

.try-btn {
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 8px 20px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
}

.try-btn:hover { opacity: 0.9; }

.try-result {
    margin-top: 12px;
    background: var(--bg-code);
    color: #e2e8f0;
    padding: 16px;
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-all;
    display: none;
    max-height: 400px;
    overflow-y: auto;
}

.try-result.show { display: block; }

/* 响应示例 */
.response-block {
    background: var(--bg-code);
    color: #e2e8f0;
    padding: 16px;
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-all;
}

/* ===== 页脚 ===== */
.footer {
    border-top: 1px solid var(--border);
    padding: 20px 32px;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-light);
}

/* ===== 响应式 ===== */
@media (max-width: 900px) {
    .sidebar { display: none; }
    .nav-links { display: none; }
    .nav-mobile-toggle { display: block; }
    .content { padding: 20px 16px; }
    .api-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .nav-version, .nav-actions .btn { display: none; }
}