/* ============================================================
   KUOXUAN · TDS 下载中心样式
   仅 tds-*.html 与 resources.html 加载
   ============================================================ */

/* ---------- 1. 分类 hero ---------- */
.tds-hero{position:relative;background:var(--ink);color:#fff;overflow:hidden}
.tds-hero .wrap{position:relative;z-index:2;padding-top:64px;padding-bottom:64px}
.tds-hero .crumb{font-size:.78rem;color:rgba(255,255,255,.6);margin-bottom:18px}
.tds-hero .crumb a{border-bottom:1px solid rgba(255,255,255,.25)}
.tds-hero .crumb a:hover{color:var(--amber);border-color:var(--amber)}
.tds-hero h1{max-width:18ch;margin-bottom:.4em}
.tds-hero h1 em{font-style:normal;color:var(--amber)}
.tds-hero .lead{color:rgba(255,255,255,.8);max-width:58ch;margin-bottom:26px}
.tds-hero-media{position:relative;z-index:3;margin-top:-40px}
.tds-hero-media img{width:100%;max-height:420px;object-fit:cover;border-radius:var(--radius)}
.tds-hero-stats{display:flex;gap:30px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.16);padding-top:22px}
.tds-hero-stats div{font-size:.86rem;color:rgba(255,255,255,.72)}
.tds-hero-stats b{display:block;font-size:1.55rem;color:#fff;line-height:1.15}

/* ---------- 2. 分类科普（3 要点） ---------- */
.tds-edu{padding:56px 0 8px}
.tds-edu h2{max-width:26ch}
.tds-edu .grid{margin-top:26px}
.tds-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow);transition:.2s ease}
.tds-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.tds-card .no{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;
  border-radius:9px;background:var(--blue-soft);color:var(--blue);font-weight:800;font-size:.9rem;margin-bottom:12px}
.tds-card h3{font-size:1.06rem;margin-bottom:.45em}
.tds-card p{font-size:.93rem;color:var(--muted);margin:0}

/* ---------- 3. 门禁条 ---------- */
.tds-list{padding:48px 0 8px}

/* 收不到验证码的醒目提示（红字加粗） */
.tds-warn{display:flex;align-items:flex-start;gap:9px;margin:14px 0 0;padding:13px 17px;
  border-radius:11px;background:#FDECEA;border:1px solid #F3BFB8;border-left:5px solid #C0392B;
  color:#B3261E;font-size:.92rem;line-height:1.55}
.tds-warn b{color:#B3261E;font-weight:800}
.tds-warn span[aria-hidden]{font-size:1.05rem;line-height:1.35}
.tds-gate .spam{display:flex;align-items:flex-start;gap:8px;margin:12px 0 0;padding:11px 13px;
  border-radius:9px;background:#FDECEA;border:1px solid #F3BFB8;color:#B3261E;
  font-size:.85rem;line-height:1.5}
.tds-gate .spam b{color:#B3261E;font-weight:800}
.tds-gate .spam span[aria-hidden]{font-size:1rem;line-height:1.3}
.tds-lockbar{display:flex;align-items:center;gap:18px;flex-wrap:wrap;
  background:linear-gradient(120deg,#0B3B6F,#1264C4);color:#fff;
  border-radius:var(--radius);padding:22px 26px;box-shadow:var(--shadow-lg);position:relative;overflow:hidden}
.tds-lockbar:before{content:"";position:absolute;right:-40px;top:-40px;width:180px;height:180px;
  border-radius:50%;background:rgba(242,162,28,.18)}
.tds-lockbar .ico{font-size:1.5rem;line-height:1;position:relative}
.tds-lockbar .txt{flex:1 1 320px;position:relative}
.tds-lockbar .txt b{display:block;font-size:1.06rem;margin-bottom:2px}
.tds-lockbar .txt span{font-size:.88rem;color:rgba(255,255,255,.78)}
.tds-lockbar .btn{position:relative}
.tds-lockbar .ok{display:none;align-items:center;gap:8px;font-weight:600;font-size:.92rem;position:relative}
.tds-lockbar .ok b{color:var(--amber)}
.tds-lockbar.unlocked{background:linear-gradient(120deg,#0d5c3a,#1E8E5A)}
.tds-lockbar.unlocked .ico,.tds-lockbar.unlocked [data-tds-open]{display:none}
.tds-lockbar.unlocked .ok{display:flex}

/* ---------- 4. 工具条 + 表格 ---------- */
.tds-tools{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin:26px 0 14px}
.tds-tools input[type=search]{flex:1 1 260px;max-width:340px;padding:11px 16px;border-radius:999px;
  border:1px solid var(--line-2);font:inherit;font-size:.92rem;background:var(--mist)}
.tds-tools input[type=search]:focus{outline:2px solid var(--blue-soft);border-color:var(--blue);background:#fff}
.tds-tools .cnt{font-size:.86rem;color:var(--muted)}
.tds-tools .cnt b{color:var(--ink)}

.tds-tablewrap{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;
  box-shadow:var(--shadow)}
.tds-table{width:100%;border-collapse:collapse;font-size:.9rem}
.tds-table thead th{background:var(--mist);text-align:left;padding:13px 14px;font-size:.74rem;
  letter-spacing:.07em;text-transform:uppercase;color:var(--muted);font-weight:700;
  border-bottom:1px solid var(--line);white-space:nowrap}
.tds-table td{padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:middle}
.tds-table tbody tr:last-child td{border-bottom:none}
.tds-table tbody tr:hover{background:#FAFCFF}
.tds-table td.m b{display:block;font-size:.95rem;color:var(--ink)}
.tds-table td.m .subtle{display:block;font-size:.78rem;color:var(--muted);margin-top:2px}
.tds-table .tag{display:inline-block;margin-left:6px;font-size:.66rem;font-weight:700;
  padding:1px 7px;border-radius:999px;background:var(--blue-soft);color:var(--blue);vertical-align:1px}
.tds-table .tag.scan{background:#FDF1DC;color:var(--amber-dark)}
.tds-table td.act{white-space:nowrap;text-align:right}
.tds-table .k{display:none}
.btn.xs{padding:8px 14px;font-size:.8rem;border-radius:8px}
.btn.ghost{background:#fff;color:var(--blue);border-color:var(--line-2)}
.btn.ghost:hover{background:var(--blue-soft);color:var(--blue)}
.btn.dl{background:var(--amber);color:#3A2A05}
.btn.dl:hover{background:var(--amber-dark);color:#fff}
.btn.busy{opacity:.6;pointer-events:none}
.tds-empty{padding:40px;text-align:center;color:var(--muted)}

/* ---------- 5. 深入科普 ---------- */
.tds-deep{padding:60px 0 8px}
.tds-deep .grid{align-items:start;gap:40px}
.tds-deep h2{max-width:24ch}
.tds-deep p{color:var(--muted)}
.tds-deep ul{color:var(--muted);font-size:.95rem}
.tds-deep li{margin-bottom:8px}
.tds-deep li b{color:var(--ink)}
.tds-spec{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow)}
.tds-spec table{width:100%;border-collapse:collapse;font-size:.86rem}
.tds-spec th{background:var(--ink);color:#fff;text-align:left;padding:12px 14px;
  font-size:.72rem;letter-spacing:.07em;text-transform:uppercase}
.tds-spec td{padding:12px 14px;border-bottom:1px solid var(--line);color:var(--muted)}
.tds-spec tbody tr:last-child td{border-bottom:none}
.tds-spec td:nth-child(1){color:var(--ink);font-weight:600}
.tds-spec td:nth-child(2) b{color:var(--blue)}
.tds-spec tbody tr:hover{background:#FAFCFF}

/* ---------- 6. CTA ---------- */
.tds-cta{margin:56px 0 72px}
.tds-cta .inner{background:var(--mist);border:1px solid var(--line);border-radius:var(--radius);
  padding:36px;text-align:center}
.tds-cta h2{margin-bottom:.3em}
.tds-cta p{color:var(--muted);max-width:58ch;margin-left:auto;margin-right:auto}

/* ---------- 7. 模态框（门禁 / 预览） ---------- */
.tds-gate,.tds-prev{position:fixed;inset:0;z-index:1200;display:none;align-items:center;justify-content:center;
  padding:20px;background:rgba(10,22,38,.62);backdrop-filter:blur(3px)}
.tds-gate.open,.tds-prev.open{display:flex}
.tds-gate .box,.tds-prev .box{background:#fff;border-radius:16px;box-shadow:var(--shadow-lg);
  width:100%;max-width:460px;padding:30px;position:relative;max-height:92vh;overflow:auto}
.tds-prev .box{max-width:760px;padding:16px}
.tds-gate .x,.tds-prev .x{position:absolute;top:12px;right:12px;width:34px;height:34px;border:none;
  background:var(--mist);border-radius:50%;font-size:1.1rem;line-height:1;cursor:pointer;color:var(--muted)}
.tds-gate .x:hover,.tds-prev .x:hover{background:var(--line);color:var(--ink)}
.tds-gate h3{font-size:1.2rem;margin-bottom:.35em}
.tds-gate p{font-size:.9rem;color:var(--muted)}
.tds-gate form{display:flex;flex-direction:column;gap:12px;margin-top:18px}
.tds-gate input{padding:13px 16px;border-radius:10px;border:1px solid var(--line-2);font:inherit;font-size:.95rem}
.tds-gate input:focus{outline:2px solid var(--blue-soft);border-color:var(--blue)}
.tds-gate input[data-gate-code]{font-size:1.45rem;letter-spacing:.42em;text-align:center;font-weight:700;
  font-family:Consolas,Menlo,monospace;padding:14px}
.tds-gate .btn{justify-content:center}
.tds-gate .err{display:none;color:#C0392B;font-size:.86rem;margin:14px 0 0;padding:10px 12px;
  background:#FDECEA;border-radius:8px;border:1px solid #F5C6C0}
.tds-gate .err.on{display:block}
.tds-gate .hint{font-size:.8rem;color:var(--muted);margin:14px 0 0}
.tds-gate .hint.warn{color:var(--amber-dark);background:#FDF6E8;padding:10px 12px;border-radius:8px}
.tds-gate .alt{display:flex;justify-content:space-between;gap:10px;margin-top:10px}
.tds-gate .alt button{background:none;border:none;color:var(--blue);font:inherit;font-size:.84rem;
  cursor:pointer;padding:0;text-decoration:underline}
.tds-gate .step{display:none}
.tds-gate[data-step=email] .step-email{display:block}
.tds-gate[data-step=code] .step-code{display:block}
.tds-prev .box img{width:100%;border-radius:10px;background:var(--mist)}
.tds-prev .cap{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 6px 2px}
.tds-prev .cap b{font-size:.95rem}
.tds-prev .cap span{font-size:.78rem;color:var(--muted)}
body.tds-modal-open{overflow:hidden}

/* ---------- 8. resources 页入口卡 ---------- */
.tds-entry .card{cursor:default}
.tds-entry .card .go{display:inline-flex;align-items:center;gap:.4em;font-weight:600;color:var(--blue);margin-top:10px}
.tds-entry .card:hover .go{color:var(--amber-dark)}
.tds-entry .card .thumb{border-radius:10px;overflow:hidden;margin:-4px -4px 14px;background:var(--mist)}
.tds-entry .card .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover}

/* ---------- 9. 手机端适配 ---------- */
@media (max-width:1080px){
  .tds-hero .wrap{padding-top:48px;padding-bottom:48px}
  .tds-hero-media{margin-top:-24px}
}
@media (max-width:900px){
  .tds-table thead{display:none}
  .tds-table,.tds-table tbody,.tds-table tr,.tds-table td{display:block;width:100%}
  .tds-table tbody tr{border:1px solid var(--line);border-radius:12px;margin:12px;padding:14px 16px;
    background:#fff;box-shadow:0 1px 2px rgba(16,35,63,.05)}
  .tds-table tbody tr:hover{background:#fff}
  .tds-table td{border:none;padding:5px 0;display:flex;justify-content:space-between;align-items:center;gap:14px}
  .tds-table td.m{display:block;padding-bottom:10px;border-bottom:1px solid var(--line);margin-bottom:8px}
  .tds-table td.m b{font-size:1.05rem}
  .tds-table td .k{display:inline;font-size:.78rem;color:var(--muted);font-weight:600}
  .tds-table td.act{justify-content:flex-start;gap:10px;padding-top:12px;border-top:1px solid var(--line);
    margin-top:8px;text-align:left}
  .tds-table .btn.xs{flex:1;justify-content:center;padding:11px}
  .tds-tools input[type=search]{max-width:none;flex:1 1 100%}
  .tds-lockbar{padding:18px 20px;gap:12px}
  .tds-lockbar .btn{width:100%;justify-content:center}
  .tds-cta .inner{padding:26px 20px}
  .tds-deep .grid{gap:24px}
  .tds-spec{overflow-x:auto}
  .tds-spec table{font-size:.8rem}
  .tds-spec th,.tds-spec td{padding:10px 11px}
}
@media (max-width:520px){
  .tds-hero-stats{gap:18px}
  .tds-hero-stats b{font-size:1.25rem}
  .tds-gate .box{padding:24px 20px}
  .tds-gate input[data-gate-code]{font-size:1.3rem;letter-spacing:.32em}
  .tds-warn{font-size:.86rem;padding:11px 13px}
}