/* ============================================================
 *  assets/style.css  —  全站样式
 * ============================================================ */
:root{
    --bg:#0b0e14;
    --panel:#141926;
    --panel2:#1a2030;
    --border:#242c3f;
    --text:#e8ecf5;
    --muted:#8b95ad;
    --brand:#6366f1;
    --brand2:#8b5cf6;
    --ok:#22c55e;
    --danger:#ef4444;
    --radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%}
body{
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;
    background:var(--bg);color:var(--text);font-size:14px;line-height:1.6;
    -webkit-font-smoothing:antialiased;
    display:flex;flex-direction:column;min-height:100vh;
}
body::before{
    content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
    background-image:
        radial-gradient(760px 500px at 6% -10%, rgba(99,102,241,.20), transparent 62%),
        radial-gradient(820px 560px at 98% 0%, rgba(139,92,246,.16), transparent 62%);
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
input,select,textarea,button{font-family:inherit;font-size:14px}

/* ---------- 顶栏 ---------- */
.topbar{
    position:sticky;top:0;z-index:50;
    backdrop-filter:blur(14px);
    background:rgba(11,14,20,.78);
    border-bottom:1px solid var(--border);
}
.topbar-inner{
    max-width:1240px;margin:0 auto;padding:0 22px;
    height:62px;display:flex;align-items:center;gap:18px;
}
.logo{display:flex;align-items:center;gap:9px;font-size:17px;font-weight:700;letter-spacing:.3px}
.logo .dot{
    width:26px;height:26px;border-radius:9px;
    background:linear-gradient(135deg,var(--brand),var(--brand2));
    display:grid;place-items:center;font-size:14px;
}
.spacer{flex:1}
.topbar .user{
    display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);
}
.badge{
    display:inline-flex;align-items:center;gap:5px;
    padding:4px 11px;border-radius:999px;font-size:12px;
    background:rgba(99,102,241,.14);color:#c7cdfb;border:1px solid rgba(99,102,241,.28);
}
.badge.green{background:rgba(34,197,94,.13);color:#86efac;border-color:rgba(34,197,94,.28)}
.badge.red{background:rgba(239,68,68,.13);color:#fca5a5;border-color:rgba(239,68,68,.28)}

/* ---------- 按钮 ---------- */
.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:6px;
    padding:9px 17px;border-radius:10px;border:1px solid var(--border);
    background:var(--panel2);color:var(--text);cursor:pointer;
    font-size:13px;font-weight:500;transition:.18s;white-space:nowrap;
}
.btn:hover{background:#212a3d;border-color:#33405c}
.btn.primary{
    background:linear-gradient(135deg,var(--brand),var(--brand2));
    border-color:transparent;color:#fff;font-weight:600;
    box-shadow:0 6px 18px -6px rgba(99,102,241,.65);
}
.btn.primary:hover{filter:brightness(1.1)}
.btn.danger{color:#fca5a5;border-color:rgba(239,68,68,.35);background:rgba(239,68,68,.10)}
.btn.danger:hover{background:rgba(239,68,68,.18)}
.btn.sm{padding:6px 12px;font-size:12px;border-radius:8px}
.btn.block{width:100%}

/* ---------- 容器 ---------- */
.container{
    max-width:1240px;margin:0 auto;padding:26px 22px 40px;
    position:relative;z-index:1;width:100%;flex:1;
}

/* ---------- 前台分类 ---------- */
.section{margin-bottom:38px}
.section-title{
    display:flex;align-items:center;gap:10px;
    font-size:15px;font-weight:700;letter-spacing:.3px;
    margin-bottom:16px;color:#cfd6e6;
}
.section-title::before{
    content:"";width:4px;height:16px;border-radius:3px;
    background:linear-gradient(180deg,var(--brand),var(--brand2));
}
.section-title .count{font-size:12px;font-weight:400;color:var(--muted)}

.grid{
    display:grid;gap:14px;
    grid-template-columns:repeat(auto-fill,minmax(230px,1fr));
}

/* 文件卡片 */
.card{
    display:flex;align-items:center;gap:14px;
    padding:15px;border-radius:var(--radius);
    background:linear-gradient(180deg,#161c2b,#131824);
    border:1px solid var(--border);
    transition:.2s;position:relative;overflow:hidden;
}
.card:hover{
    transform:translateY(-3px);
    border-color:rgba(99,102,241,.55);
    box-shadow:0 16px 34px -18px rgba(99,102,241,.75);
}
.card::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(135deg,rgba(99,102,241,.10),transparent 55%);
    opacity:0;transition:.2s;pointer-events:none;
}
.card:hover::after{opacity:1}
.card .ico{
    width:48px;height:48px;flex:0 0 48px;border-radius:12px;overflow:hidden;
    display:grid;place-items:center;font-size:20px;font-weight:700;color:#fff;
    background:linear-gradient(135deg,#6366f1,#8b5cf6);
    box-shadow:0 8px 18px -10px rgba(99,102,241,.9);
    position:relative;z-index:1;
}
.card .ico img{width:100%;height:100%;object-fit:cover}
.card .info{min-width:0;position:relative;z-index:1;flex:1}
.card .name{
    font-size:14.5px;font-weight:600;margin-bottom:5px;
    white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.card .fid{
    font-size:11.5px;color:var(--muted);
    font-family:ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.5px;
}
.card .lock{
    position:absolute;top:11px;right:11px;font-size:12px;opacity:.75;z-index:2;
}

/* 空状态 */
.empty{
    text-align:center;padding:70px 20px;color:var(--muted);
    border:1px dashed var(--border);border-radius:var(--radius);
}
.empty .big{font-size:38px;margin-bottom:12px;opacity:.5}

/* ---------- 表单 ---------- */
.form-wrap{max-width:460px;margin:56px auto}
.panel{
    background:linear-gradient(180deg,#161c2b,#131824);
    border:1px solid var(--border);border-radius:18px;padding:32px;
}
.panel h2{font-size:19px;margin-bottom:6px}
.panel .desc{color:var(--muted);font-size:13px;margin-bottom:24px}
.field{margin-bottom:16px}
.field label{display:block;font-size:12.5px;color:var(--muted);margin-bottom:7px;font-weight:500}
.input,select.input,textarea.input{
    width:100%;padding:11px 14px;border-radius:10px;
    background:#0f1420;border:1px solid var(--border);
    color:var(--text);outline:none;transition:.18s;
}
.input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(99,102,241,.18)}
.input::placeholder{color:#5b6480}
select.input{
    appearance:none;
    background-image:linear-gradient(45deg,transparent 50%,#8b95ad 50%),
                     linear-gradient(135deg,#8b95ad 50%,transparent 50%);
    background-position:calc(100% - 18px) 50%,calc(100% - 13px) 50%;
    background-size:5px 5px,5px 5px;background-repeat:no-repeat;
    padding-right:36px;
}
.checkbox{display:flex;align-items:center;gap:9px;cursor:pointer;font-size:13.5px;color:#c2cade}
.checkbox input{width:16px;height:16px;accent-color:var(--brand);cursor:pointer}

.alert{padding:11px 14px;border-radius:10px;font-size:13px;margin-bottom:18px;line-height:1.6}
.alert.err{background:rgba(239,68,68,.12);color:#fca5a5;border:1px solid rgba(239,68,68,.3)}
.alert.ok{background:rgba(34,197,94,.12);color:#86efac;border:1px solid rgba(34,197,94,.3)}
.alert.info{background:rgba(99,102,241,.12);color:#c7cdfb;border:1px solid rgba(99,102,241,.28)}

/* ---------- 后台布局 ---------- */
body.admin{display:block}
body.admin .layout{display:flex;min-height:100vh;position:relative;z-index:1}
.sidebar{
    width:212px;flex:0 0 212px;background:#10141e;
    border-right:1px solid var(--border);padding:20px 13px;
    position:sticky;top:0;height:100vh;overflow-y:auto;
}
.sidebar .brand{
    display:flex;align-items:center;gap:10px;
    padding:6px 10px 22px;font-weight:700;font-size:15px;
}
.sidebar .brand .dot{
    width:28px;height:28px;border-radius:9px;flex:0 0 28px;
    background:linear-gradient(135deg,var(--brand),var(--brand2));
    display:grid;place-items:center;font-size:14px;
}
.nav-link{
    display:flex;align-items:center;gap:10px;
    padding:10px 13px;border-radius:10px;font-size:13.5px;
    color:#9aa3ba;margin-bottom:3px;transition:.16s;
}
.nav-link:hover{background:#181f2e;color:#dfe4f0}
.nav-link.active{
    background:linear-gradient(135deg,rgba(99,102,241,.22),rgba(139,92,246,.16));
    color:#fff;font-weight:600;
    box-shadow:inset 0 0 0 1px rgba(99,102,241,.32);
}
.nav-link .ic{width:17px;text-align:center;font-size:14px}
.main{flex:1;min-width:0;padding:26px 30px 60px}
.page-head{
    display:flex;align-items:center;gap:14px;flex-wrap:wrap;
    margin-bottom:22px;
}
.page-head h1{font-size:21px;font-weight:700}
.page-head .sub{color:var(--muted);font-size:12.5px;width:100%}

/* 统计卡片 */
.stats{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));margin-bottom:26px}
.stat{
    background:linear-gradient(180deg,#161c2b,#131824);
    border:1px solid var(--border);border-radius:var(--radius);padding:19px;
}
.stat .k{font-size:12.5px;color:var(--muted);margin-bottom:8px}
.stat .v{font-size:26px;font-weight:700;letter-spacing:.5px}
.stat .v.purple{
    background:linear-gradient(135deg,#a5b4fc,#c4b5fd);
    -webkit-background-clip:text;background-clip:text;color:transparent;
}

/* 表格 */
.table-wrap{
    background:linear-gradient(180deg,#161c2b,#131824);
    border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;
}
table{width:100%;border-collapse:collapse;font-size:13.5px}
thead th{
    text-align:left;padding:13px 15px;font-size:12px;font-weight:600;
    color:var(--muted);text-transform:uppercase;letter-spacing:.6px;
    background:#121724;border-bottom:1px solid var(--border);white-space:nowrap;
}
tbody td{padding:12px 15px;border-bottom:1px solid #1c2231;vertical-align:middle}
tbody tr:last-child td{border-bottom:0}
tbody tr{transition:.14s}
tbody tr:hover{background:#18202f}
tbody tr.sel{background:rgba(99,102,241,.13);box-shadow:inset 3px 0 0 var(--brand)}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12.5px;color:#a9b2c8;letter-spacing:.5px}
.acts{display:flex;gap:7px;flex-wrap:wrap}
.drag{cursor:grab;color:#4d5771;font-size:15px;user-select:none}
.tip{color:var(--muted);font-size:12.5px;margin-bottom:12px;display:flex;align-items:center;gap:7px}
.tip kbd{
    background:#1d2536;border:1px solid #2e3950;border-radius:5px;
    padding:1px 7px;font-size:11.5px;font-family:ui-monospace,monospace;color:#c3cbe0;
}
.thumb{
    width:36px;height:36px;border-radius:9px;object-fit:cover;
    background:#0f1420;border:1px solid var(--border);
}
.thumb-txt{
    width:36px;height:36px;border-radius:9px;display:grid;place-items:center;
    font-size:15px;font-weight:700;color:#fff;
    background:linear-gradient(135deg,#6366f1,#8b5cf6);
}
.mini-name{font-weight:600;color:#e3e8f2}
.mini-sub{font-size:11.5px;color:var(--muted);margin-top:2px}
.pager{display:flex;gap:6px;justify-content:center;padding:18px;flex-wrap:wrap}
.pager a,.pager span{
    min-width:34px;height:34px;padding:0 10px;border-radius:9px;display:grid;place-items:center;
    background:#18202f;border:1px solid var(--border);font-size:13px;color:#9aa3ba;
}
.pager a:hover{border-color:var(--brand);color:#fff}
.pager .cur{background:linear-gradient(135deg,var(--brand),var(--brand2));border-color:transparent;color:#fff;font-weight:600}

/* 下载页 */
.dl-wrap{min-height:100vh;display:grid;place-items:center;padding:26px}
.dl-card{
    width:100%;max-width:410px;text-align:center;
    background:linear-gradient(180deg,#161c2b,#131824);
    border:1px solid var(--border);border-radius:20px;padding:36px 30px;
}
.dl-card .ico{
    width:74px;height:74px;margin:0 auto 20px;border-radius:20px;overflow:hidden;
    display:grid;place-items:center;font-size:30px;font-weight:700;color:#fff;
    background:linear-gradient(135deg,#6366f1,#8b5cf6);
    box-shadow:0 18px 38px -16px rgba(99,102,241,.95);
}
.dl-card .ico img{width:100%;height:100%;object-fit:cover}
.dl-card h2{font-size:18px;margin-bottom:7px;word-break:break-all}
.dl-card .fid{
    font-size:12.5px;color:var(--muted);margin-bottom:22px;
    font-family:ui-monospace,monospace;letter-spacing:.6px;
}

/* ---------- 前台页脚（备案信息） ---------- */
.site-footer{
    position:relative;z-index:1;
    border-top:1px solid var(--border);
    padding:22px 22px 26px;
    margin-top:auto;
    background:rgba(11,14,20,.55);
    backdrop-filter:blur(8px);
}
.footer-inner{
    max-width:1240px;margin:0 auto;
    display:flex;align-items:center;justify-content:center;
    flex-wrap:wrap;gap:8px 16px;
    font-size:13px;color:var(--muted);
}
.footer-inner a{
    color:var(--muted);transition:.16s;
    display:inline-flex;align-items:center;gap:7px;
    padding:4px 6px;border-radius:8px;
}
.footer-inner a:hover{color:#c7cdfb;background:rgba(99,102,241,.10)}
.footer-inner .sep{color:#2e3950;user-select:none}
.footer-inner .police img{
    width:16px;height:16px;object-fit:contain;display:inline-block;
    vertical-align:middle;border-radius:3px;
}

/* 响应式 */
@media(max-width:820px){
    .sidebar{width:64px;flex:0 0 64px;padding:16px 8px}
    .sidebar .brand span,.nav-link span.txt{display:none}
    .sidebar .brand{justify-content:center;padding:6px 0 18px}
    .nav-link{justify-content:center;padding:11px 0}
    .main{padding:20px 16px 60px}
    .topbar-inner{padding:0 16px;gap:10px}
    .logo span.txt{display:none}
    .grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}
    .card .ico{width:42px;height:42px;flex:0 0 42px;font-size:17px}
}
@media(max-width:560px){
    .hide-sm{display:none}
    .footer-inner{font-size:12px;gap:6px 10px}
}