/* ============================================================
   AI 模型排行榜 - 全屏横向布局 · 暗色高端主题
   PHP 8.1 + CSS3
   ============================================================ */

:root {
    --bg-0: #070a14;
    --bg-1: #0b1020;
    --bg-2: #101731;
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.07);
    --card-hover: rgba(255, 255, 255, 0.05);
    --text-1: #eef2ff;
    --text-2: #a5b0cc;
    --text-3: #6b7694;
    --accent-1: #6366f1;
    --accent-2: #a855f7;
    --accent-3: #ec4899;
    --cyan: #22d3ee;
    --green: #34d399;
    --gold: #fbbf24;
    --silver: #cbd5e1;
    --bronze: #d97706;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: var(--font);
    background: linear-gradient(160deg, var(--bg-0) 0%, var(--bg-1) 45%, var(--bg-2) 100%);
    color: var(--text-1);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ============ 背景光效 ============ */
.bg-aurora {
    position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none;
}

.blob {
    position: absolute; border-radius: 50%; filter: blur(100px); opacity: 0.45;
    animation: float 20s ease-in-out infinite;
}

.blob-1 {
    width: 560px; height: 560px; top: -10%; left: -5%;
    background: radial-gradient(circle, rgba(99,102,241,0.5), transparent 70%);
}

.blob-2 {
    width: 480px; height: 480px; top: 40%; right: -8%;
    background: radial-gradient(circle, rgba(168,85,247,0.45), transparent 70%);
    animation-delay: -7s;
}

.blob-3 {
    width: 440px; height: 440px; bottom: -10%; left: 30%;
    background: radial-gradient(circle, rgba(34,211,238,0.35), transparent 70%);
    animation-delay: -14s;
}

@keyframes float {
    0%,100% { transform: translate(0,0) scale(1); }
    33%     { transform: translate(50px,-40px) scale(1.06); }
    66%     { transform: translate(-40px,30px) scale(0.94); }
}

.grid-overlay {
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 75%);
}

/* ============ 顶部导航 ============ */
.site-header {
    position: sticky; top: 0; z-index: 100;
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    background: rgba(7,10,20,0.75);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.header-inner {
    display: flex; align-items: center; justify-content: space-between; gap: 24px;
    padding: 12px 32px;
    max-width: 100%;
}

.brand {
    display: flex; align-items: center; gap: 12px; text-decoration: none; color: inherit;
    flex-shrink: 0;
}

.brand-logo {
    width: 42px; height: 42px; display: grid; place-items: center; font-size: 20px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--accent-1), var(--accent-2), var(--accent-3));
    box-shadow: 0 0 22px rgba(139,92,246,0.5);
    animation: logoGlow 3s ease-in-out infinite;
}

@keyframes logoGlow {
    0%,100% { box-shadow: 0 0 16px rgba(99,102,241,0.4); }
    50%     { box-shadow: 0 0 32px rgba(236,72,153,0.55); }
}

.brand-text { display: flex; flex-direction: column; line-height: 1.2; }

.brand-title {
    font-size: 18px; font-weight: 800; letter-spacing: 0.5px;
    background: linear-gradient(90deg, #fff, #c7d2fe, #e9d5ff);
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}

.brand-sub { font-size: 11px; color: var(--text-3); letter-spacing: 0.3px; }

.header-actions { display: flex; align-items: center; gap: 12px; }

.search-box { position: relative; display: flex; align-items: center; }

.search-icon {
    position: absolute; left: 13px; width: 16px; height: 16px;
    color: var(--text-3); pointer-events: none;
}

.search-box input {
    width: 260px; padding: 9px 14px 9px 40px; border-radius: 10px;
    border: 1px solid var(--card-border);
    background: rgba(255,255,255,0.05);
    color: var(--text-1); font-size: 13.5px; font-family: var(--font);
    outline: none; transition: all 0.3s ease;
}

.search-box input::placeholder { color: var(--text-3); }

.search-box input:focus {
    border-color: rgba(139,92,246,0.6);
    background: rgba(255,255,255,0.08);
    box-shadow: 0 0 0 4px rgba(139,92,246,0.12);
}

.refresh-btn {
    width: 38px; height: 38px; display: grid; place-items: center;
    border-radius: 10px; border: 1px solid var(--card-border);
    background: rgba(255,255,255,0.05); color: var(--text-2);
    text-decoration: none; transition: all 0.3s ease;
}

.refresh-btn svg { width: 17px; height: 17px; }

.refresh-btn:hover {
    color: #fff; border-color: rgba(139,92,246,0.6);
    box-shadow: 0 0 18px rgba(139,92,246,0.3); transform: rotate(180deg);
}

/* ============ 主内容区 ============ */
.main { padding: 0 28px; }

/* ============ 分类导航 ============ */
.cat-nav {
    display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
    padding: 20px 0 10px;
}

.cat-nav-label {
    font-size: 12px; color: var(--text-3); font-weight: 600; letter-spacing: 0.5px;
    margin-right: 4px;
}

.cat-pill {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 15px; border-radius: 999px;
    border: 1px solid var(--card-border);
    background: var(--card-bg); color: var(--text-2);
    text-decoration: none; font-size: 13px; font-weight: 600;
    transition: all 0.3s ease; position: relative; overflow: hidden;
}

.cat-pill::before {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(120deg, var(--accent-1), var(--accent-2), var(--accent-3));
    opacity: 0; transition: opacity 0.3s ease;
}

.cat-pill:hover {
    color: #fff; border-color: rgba(139,92,246,0.5);
    transform: translateY(-2px); box-shadow: 0 6px 20px rgba(99,102,241,0.2);
}

.cat-pill:hover::before { opacity: 1; }
.cat-pill > * { position: relative; z-index: 1; }
.cat-icon { font-size: 15px; }

/* ============ 分类区块 ============ */
.cat-section {
    margin-bottom: 36px;
    animation: fadeUp 0.5s ease;
}

.cat-head {
    display: flex; align-items: center; gap: 12px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.cat-head-icon { font-size: 24px; }

.cat-head-title {
    font-size: 22px; font-weight: 800; letter-spacing: 0.5px;
    background: linear-gradient(90deg, #fff, #c7d2fe);
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}

/* ============ 横向排列：boards-row ============ */
.boards-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
    gap: 20px;
}

/* 编码：2个榜单，各占 1/2 */
/* 图像：2个榜单，各占 1/2 */
/* 视频：3个榜单，自动换行 */
/* 智能综合指数/文本/安全/语音：各1个，占满 */

.board-col { min-width: 0; }

.board-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 14px;
    backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    overflow: hidden;
    height: 100%;
    display: flex; flex-direction: column;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.board-card:hover {
    border-color: rgba(139,92,246,0.35);
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}

.board-card-head {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 18px;
    background: rgba(255,255,255,0.02);
    border-bottom: 1px solid var(--card-border);
    flex-shrink: 0;
}

.board-card-title {
    font-size: 15px; font-weight: 700;
    color: var(--text-1);
    letter-spacing: 0.3px;
}

.board-card-count {
    font-size: 11.5px; color: var(--text-3);
    padding: 3px 10px; border-radius: 999px;
    background: rgba(255,255,255,0.05);
    font-weight: 500;
}

.board-card-body {
    flex: 1;
    overflow-y: auto;
    max-height: 520px;
    scrollbar-width: thin;
    scrollbar-color: rgba(139,92,246,0.3) transparent;
}

.board-card-body::-webkit-scrollbar { width: 6px; }
.board-card-body::-webkit-scrollbar-thumb {
    background: rgba(139,92,246,0.3); border-radius: 6px;
}
.board-card-body::-webkit-scrollbar-track { background: transparent; }

/* ============ 小表格 ============ */
.mini-table {
    width: 100%; border-collapse: collapse; font-size: 13px;
}

.mini-table thead th {
    position: sticky; top: 0; z-index: 3;
    padding: 10px 12px;
    font-size: 10.5px; font-weight: 700; letter-spacing: 0.5px;
    text-transform: uppercase; color: var(--text-3);
    background: rgba(13,18,38,0.95);
    border-bottom: 1px solid var(--card-border);
    white-space: nowrap;
}

.mini-table tbody tr {
    border-bottom: 1px solid rgba(255,255,255,0.03);
    transition: background 0.2s ease;
}

.mini-table tbody tr:hover { background: var(--card-hover); }

.mini-table tbody tr.top {
    background: linear-gradient(90deg, rgba(99,102,241,0.06), transparent 50%);
}

.mini-table tbody tr.top:hover {
    background: linear-gradient(90deg, rgba(99,102,241,0.12), transparent 50%);
}

.mini-table td {
    padding: 8px 12px;
    vertical-align: middle;
    white-space: nowrap;
}

.mini-table td:first-child { padding-left: 18px; }

.align-left   { text-align: left; }
.align-center { text-align: center; }
.align-right  { text-align: right; }

/* 排名徽章 */
.rbadge {
    display: inline-block; min-width: 22px; height: 22px; line-height: 22px;
    text-align: center; border-radius: 6px;
    font-family: var(--mono); font-size: 12px; font-weight: 700;
    color: var(--text-2); background: rgba(255,255,255,0.06);
}

.rbadge.r1 {
    color: #1a1206; background: linear-gradient(135deg, #fde68a, var(--gold));
    box-shadow: 0 0 12px rgba(251,191,36,0.4);
}

.rbadge.r2 {
    color: #0f172a; background: linear-gradient(135deg, #f1f5f9, var(--silver));
    box-shadow: 0 0 10px rgba(203,213,225,0.35);
}

.rbadge.r3 {
    color: #1c0a02; background: linear-gradient(135deg, #fdba74, var(--bronze));
    box-shadow: 0 0 10px rgba(217,119,6,0.35);
}

/* 模型名 */
.mname { font-weight: 600; color: var(--text-1); margin-right: 6px; }

/* 厂商徽章 */
.cbadge {
    padding: 1px 7px; border-radius: 999px; font-size: 10px; font-weight: 600;
    color: #fff; background: linear-gradient(120deg, var(--c1), var(--c2));
    box-shadow: 0 1px 4px rgba(0,0,0,0.3);
}

/* 分数条 */
.sbar-wrap {
    position: relative; display: inline-flex; align-items: center;
    justify-content: flex-end; min-width: 100px; height: 22px;
    padding: 0 8px; border-radius: 6px; overflow: hidden;
    background: rgba(255,255,255,0.03);
}

.sbar {
    position: absolute; left: 0; top: 0; bottom: 0; border-radius: 6px;
    background: linear-gradient(90deg, var(--accent-1), var(--accent-2), var(--accent-3));
    opacity: 0.25; transition: width 0.8s cubic-bezier(0.22,1,0.36,1);
}

.snum {
    position: relative; z-index: 1;
    font-family: var(--mono); font-weight: 700; font-size: 12.5px; color: #fff;
}

.cnum { font-family: var(--mono); color: var(--text-2); }

.na { color: var(--text-3); }

/* 空状态 */
.empty-msg {
    padding: 40px 20px; text-align: center; color: var(--text-3); font-size: 14px;
}

/* ============ 页脚 ============ */
.site-footer {
    margin-top: 40px; padding: 24px 32px 32px;
    border-top: 1px solid rgba(255,255,255,0.04);
}

.footer-inner {
    display: flex; align-items: center; justify-content: space-between;
    gap: 12px; flex-wrap: wrap; font-size: 12.5px; color: var(--text-3);
}

.footer-inner a { color: var(--accent-2); text-decoration: none; }
.footer-inner a:hover { text-decoration: underline; }

.footer-meta { font-family: var(--mono); font-size: 11.5px; }

/* ============ 动画 ============ */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ============ 响应式 ============ */
@media (max-width: 960px) {
    .boards-row { grid-template-columns: 1fr; }
    .header-inner { flex-direction: column; align-items: stretch; padding: 12px 20px; }
    .header-actions { justify-content: space-between; }
    .search-box { flex: 1; }
    .search-box input { width: 100%; }
    .main { padding: 0 16px; }
}

@media (max-width: 520px) {
    .cat-nav { gap: 6px; }
    .cat-pill { padding: 6px 11px; font-size: 12px; }
    .brand-title { font-size: 16px; }
    .cat-head-title { font-size: 18px; }
    .site-footer { padding: 18px 16px; }
}