/* ══════════════════════════════════════════════════════════════
   AI 星图 · 视频生成工具专页样式
   复用 prompt.css 的设计变量，扩展工具页专属模块
   （导入顺序：先 prompt.css，再 tool.css）
   ══════════════════════════════════════════════════════════════ */

/* ── 工具页头 ── */
.t-hero{
  padding:34px 0 26px;
  border-bottom:1px solid var(--stroke);
}
.t-crumb{
  font-size:12.5px;color:var(--text-faint);margin-bottom:14px;
}
.t-crumb a{color:var(--text-dim);text-decoration:none}
.t-crumb a:hover{color:var(--brand)}
.t-crumb span{margin:0 6px;opacity:.6}

.t-head{
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  margin-bottom:14px;
}
.t-logo{
  width:52px;height:52px;border-radius:14px;flex:none;
  display:flex;align-items:center;justify-content:center;
  font-size:22px;font-weight:700;color:#fff;letter-spacing:-1px;
  box-shadow:0 6px 16px rgba(16,50,34,.16);
}
.t-name{
  font-size:26px;font-weight:600;letter-spacing:-.5px;
  line-height:1.25;
}
.t-name em{font-style:normal;color:var(--text-faint);font-size:15px;font-weight:400;margin-left:8px}
.t-makers{font-size:13px;color:var(--text-dim);margin-top:3px}

.t-lead{
  font-size:14.5px;color:var(--text-dim);max-width:760px;line-height:1.75;
}

/* 亮点小标签 */
.t-pills{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.t-pill{
  font-size:12.5px;padding:4px 12px;border-radius:20px;
  background:var(--card);border:1px solid var(--stroke);
  color:var(--text-dim);
  display:inline-flex;align-items:center;gap:5px;
}
.t-pill b{color:var(--brand-deep);font-weight:600}

/* 直达按钮 */
.t-cta{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.t-cta a{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 18px;border-radius:9px;
  font-size:14px;text-decoration:none;transition:all .18s;
}
.t-cta a.go{
  background:linear-gradient(135deg,#0da56b,#1fbf7e);color:#fff;font-weight:500;
}
.t-cta a.go:hover{box-shadow:0 5px 16px rgba(13,165,107,.3);filter:brightness(1.05)}
.t-cta a.ghost{
  border:1px solid var(--stroke);background:var(--card);color:var(--text-dim);
}
.t-cta a.ghost:hover{border-color:var(--brand);color:var(--brand);background:#f0fbf6}
.t-cta svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ── 通用区块 ── */
.t-sec{padding:34px 0 0}
.t-sec-h{
  display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;
  margin-bottom:6px;
}
.t-sec-h h2{
  font-size:19px;font-weight:600;letter-spacing:-.3px;
  display:flex;align-items:center;gap:9px;
}
.t-sec-h h2::before{
  content:"";width:3px;height:17px;border-radius:2px;
  background:linear-gradient(180deg,#1fbf7e,#0a8a58);
}
.t-sec-h .sub{font-size:12.5px;color:var(--text-faint)}
.t-sec > p.intro{color:var(--text-dim);font-size:14px;margin-bottom:16px;max-width:780px}

/* ── 参数表 ── */
.t-spec{
  background:var(--card);border:1px solid var(--stroke);
  border-radius:14px;overflow:hidden;
}
.t-spec table{width:100%;border-collapse:collapse;font-size:13.5px}
.t-spec th{
  text-align:left;padding:11px 18px;
  background:var(--bg2);color:var(--text-dim);
  font-weight:500;font-size:12.5px;letter-spacing:.3px;
  border-bottom:1px solid var(--stroke);
  white-space:nowrap;
}
.t-spec td{
  padding:11px 18px;border-bottom:1px solid var(--stroke);
  color:var(--text);vertical-align:top;
}
.t-spec tr:last-child td{border-bottom:none}
.t-spec td:first-child{
  color:var(--text-dim);font-size:13px;white-space:nowrap;
  width:150px;
}
.t-spec td b{color:var(--brand-deep);font-weight:600}
.t-spec td .warn{color:var(--gold);font-weight:500}
.t-spec td code{
  font-family:var(--mono);font-size:12px;
  background:var(--bg2);padding:1px 6px;border-radius:5px;
  color:var(--brand-deep);
}
@media(max-width:640px){
  .t-spec{overflow-x:auto}
  .t-spec table{min-width:520px}
}

/* ── 对比表（更强的强调） ── */
.t-compare-wrap{overflow-x:auto;border-radius:14px;border:1px solid var(--stroke);background:var(--card)}
.t-compare{width:100%;border-collapse:collapse;font-size:13px;min-width:660px}
.t-compare th{
  padding:12px 16px;background:#16301f;color:#d8e8e0;
  text-align:left;font-weight:500;font-size:12.5px;white-space:nowrap;
}
.t-compare th.best{background:linear-gradient(135deg,#0a8a58,#1fbf7e);color:#fff}
.t-compare td{
  padding:11px 16px;border-bottom:1px solid var(--stroke);
  color:var(--text);vertical-align:top;
}
.t-compare tr:last-child td{border-bottom:none}
.t-compare td:first-child{color:var(--text-dim);white-space:nowrap}
.t-compare tr:hover td{background:#fbfdfc}
.t-compare .y{color:var(--brand);font-weight:600}
.t-compare .n{color:var(--text-faint)}

/* ── 优缺点双栏 ── */
.t-split{
  display:grid;grid-template-columns:1fr 1fr;gap:14px;
}
@media(max-width:720px){.t-split{grid-template-columns:1fr}}
.t-box{
  background:var(--card);border:1px solid var(--stroke);
  border-radius:14px;padding:18px 20px;
}
.t-box.good{border-top:3px solid var(--brand)}
.t-box.bad{border-top:3px solid #d97c1c}
.t-box-h{
  font-size:14px;font-weight:600;margin-bottom:12px;
  display:flex;align-items:center;gap:7px;
}
.t-box.good .t-box-h{color:var(--brand-deep)}
.t-box.bad .t-box-h{color:#b3630f}
.t-box ul{list-style:none;display:flex;flex-direction:column;gap:9px}
.t-box li{
  font-size:13.5px;color:var(--text-dim);line-height:1.65;
  padding-left:19px;position:relative;
}
.t-box li::before{
  content:"";position:absolute;left:2px;top:8px;
  width:6px;height:6px;border-radius:50%;
}
.t-box.good li::before{background:var(--brand)}
.t-box.bad li::before{background:#e0993a}
.t-box li b{color:var(--text);font-weight:600}

/* ── 专属提示词卡（复用 p-card 结构，加工具色条） ── */
.t-prompt{
  background:var(--card);border:1px solid var(--stroke);
  border-radius:14px;padding:20px 22px;margin-bottom:14px;
  border-left:3px solid var(--brand);
  transition:all .2s;
}
.t-prompt:hover{
  border-color:var(--stroke-strong);
  border-left-color:var(--brand);
  box-shadow:0 6px 12px rgba(16,50,34,.05),0 16px 36px rgba(13,165,107,.08);
}
.t-prompt .p-c-head{margin-bottom:7px}

/* ── 避坑清单 ── */
.t-traps{display:flex;flex-direction:column;gap:10px}
.t-trap{
  background:var(--card);border:1px solid var(--stroke);
  border-radius:12px;padding:15px 18px;
  display:flex;gap:13px;align-items:flex-start;
}
.t-trap-n{
  flex:none;width:24px;height:24px;border-radius:7px;
  background:#fff4e3;color:#b3630f;
  display:flex;align-items:center;justify-content:center;
  font-size:12.5px;font-weight:700;
  font-family:var(--mono);
}
.t-trap-t{flex:1;min-width:0}
.t-trap-t h4{font-size:14px;font-weight:600;margin-bottom:4px}
.t-trap-t p{font-size:13px;color:var(--text-dim);line-height:1.65}
.t-trap-t p b{color:var(--brand-deep)}

/* ── 工作流步骤 ── */
.t-steps{
  display:flex;flex-direction:column;gap:0;
  counter-reset:step;
}
.t-step{
  display:flex;gap:16px;padding-bottom:20px;position:relative;
}
.t-step:last-child{padding-bottom:0}
.t-step::before{
  content:"";position:absolute;left:15px;top:32px;bottom:0;
  width:1px;background:var(--stroke);
}
.t-step:last-child::before{display:none}
.t-step-n{
  flex:none;width:31px;height:31px;border-radius:50%;
  background:linear-gradient(135deg,#0da56b,#1fbf7e);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:13.5px;font-weight:600;z-index:1;
  box-shadow:0 3px 9px rgba(13,165,107,.25);
}
.t-step-b{flex:1;min-width:0;padding-top:4px}
.t-step-b h4{font-size:14.5px;font-weight:600;margin-bottom:5px}
.t-step-b p{font-size:13.5px;color:var(--text-dim);line-height:1.7}
.t-step-b code{
  font-family:var(--mono);font-size:12px;
  background:var(--bg2);padding:1px 6px;border-radius:5px;color:var(--brand-deep);
}

/* ── 相关工具横滑卡 ── */
.t-rel{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));
  gap:12px;
}
.t-rel a{
  background:var(--card);border:1px solid var(--stroke);
  border-radius:12px;padding:15px 16px;text-decoration:none;
  color:var(--text);transition:all .18s;display:block;
}
.t-rel a:hover{
  border-color:var(--brand);
  box-shadow:0 6px 18px rgba(13,165,107,.1);
  transform:translateY(-2px);
}
.t-rel .t-rel-t{font-size:14.5px;font-weight:600;margin-bottom:3px}
.t-rel .t-rel-d{font-size:12.5px;color:var(--text-faint);line-height:1.55}

/* ── 页内导航（sticky TOC） ── */
.t-toc{
  position:sticky;top:58px;z-index:40;
  margin:0 -20px 8px;padding:0 20px;
  background:rgba(246,249,247,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--stroke);
}
.t-toc-in{
  display:flex;gap:4px;align-items:center;
  overflow-x:auto;padding:9px 0;
  scrollbar-width:none;
}
.t-toc-in::-webkit-scrollbar{display:none}
.t-toc a{
  flex:none;font-size:13px;color:var(--text-dim);text-decoration:none;
  padding:5px 12px;border-radius:8px;white-space:nowrap;
  transition:all .16s;
}
.t-toc a:hover{background:var(--bg2);color:var(--brand)}
.t-toc a.on{
  background:linear-gradient(135deg,#0da56b,#1fbf7e);color:#fff;font-weight:500;
}
.t-toc-n{
  flex:none;font-size:11.5px;color:var(--text-faint);
  padding-left:6px;margin-left:4px;border-left:1px solid var(--stroke);
  font-variant-numeric:tabular-nums;
}
@media(max-width:640px){
  .t-toc{margin:0 -16px 6px;padding:0 16px;top:54px}
  .t-toc a{font-size:12.5px;padding:4px 10px}
}

/* ── 回到顶部 ── */
.t-top{
  position:fixed;right:24px;bottom:28px;z-index:80;
  width:42px;height:42px;border-radius:50%;
  background:var(--card);border:1px solid var(--stroke);
  color:var(--text-dim);cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 18px rgba(16,50,34,.14);
  opacity:0;pointer-events:none;
  transition:all .24s;
}
.t-top.show{opacity:1;pointer-events:auto}
.t-top:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-3px)}
.t-top svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
@media(max-width:640px){.t-top{right:16px;bottom:20px;width:38px;height:38px}}

/* ── 提示词工具条 ── */
.t-ptool{
  display:flex;gap:10px;align-items:center;flex-wrap:wrap;
  margin-bottom:16px;
}
.t-psearch{
  flex:1;min-width:200px;position:relative;display:flex;align-items:center;
}
.t-psearch svg{
  position:absolute;left:12px;width:15px;height:15px;
  stroke:var(--text-faint);fill:none;stroke-width:2;pointer-events:none;
}
.t-psearch input{
  width:100%;padding:9px 14px 9px 35px;
  border:1px solid var(--stroke);border-radius:9px;
  font-family:var(--font);font-size:13.5px;
  background:var(--card);color:var(--text);
  outline:none;transition:all .18s;
}
.t-psearch input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(13,165,107,.1)}
.t-psearch input::placeholder{color:var(--text-faint)}
.t-ptool .p-btn{padding:9px 15px;font-size:13px}

/* 空状态（筛选无结果） */
.t-pempty{
  text-align:center;padding:38px 20px;color:var(--text-faint);font-size:13.5px;
  background:var(--card);border:1px solid var(--stroke);border-radius:14px;
}
.t-pempty b{color:var(--text-dim)}

/* ── 相关工具区的「看全部」 ── */
.t-rel-all{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:14px;font-size:13.5px;color:var(--brand);
  text-decoration:none;font-weight:500;
}
.t-rel-all:hover{text-decoration:underline}
.t-rel-all svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

.t-nav{
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  margin-top:38px;padding-top:22px;border-top:1px solid var(--stroke);
}
.t-nav a{
  font-size:13.5px;color:var(--text-dim);text-decoration:none;
  padding:9px 16px;border:1px solid var(--stroke);border-radius:9px;
  transition:all .18s;
}
.t-nav a:hover{border-color:var(--brand);color:var(--brand);background:#f0fbf6}

/* ── 三问定工具（交互选择器） ── */
.t-pick{
  display:flex;flex-direction:column;gap:16px;
  background:var(--card);border:1px solid var(--stroke);
  border-radius:16px;padding:22px 24px;
}
.t-pick-q{display:flex;flex-direction:column;gap:9px}
.t-pick-qt{
  font-size:13.5px;font-weight:600;color:var(--text);
  display:flex;align-items:center;gap:8px;
}
.t-pick-qt i{
  font-style:normal;font-family:var(--mono);font-size:11.5px;
  width:19px;height:19px;border-radius:6px;
  background:#e8f7f0;color:var(--brand-deep);
  display:inline-flex;align-items:center;justify-content:center;
}
.t-pick-os{display:flex;gap:8px;flex-wrap:wrap}
.t-pick-o{
  font-size:13px;padding:7px 14px;border-radius:20px;
  border:1px solid var(--stroke);background:var(--card);
  color:var(--text-dim);cursor:pointer;transition:all .16s;
  user-select:none;
}
.t-pick-o:hover{border-color:var(--stroke-strong);color:var(--text)}
.t-pick-o.on{
  background:linear-gradient(135deg,#0da56b,#1fbf7e);
  border-color:transparent;color:#fff;font-weight:500;
  box-shadow:0 3px 10px rgba(13,165,107,.22);
}
.t-pick-foot{
  display:flex;justify-content:space-between;align-items:center;
  gap:10px;flex-wrap:wrap;padding-top:4px;
  border-top:1px solid var(--stroke);margin-top:2px;padding-top:14px;
}
.t-pick-tip{font-size:12.5px;color:var(--text-faint)}

.t-pick-out{
  margin-top:14px;
  opacity:0;max-height:0;overflow:hidden;
  transition:all .28s;
}
.t-pick-out.show{opacity:1;max-height:600px}
.t-pick-res{
  background:linear-gradient(135deg,#0a8a58,#1fbf7e);
  border-radius:16px;padding:22px 24px;color:#fff;
}
.t-pick-res-h{
  font-size:11.5px;letter-spacing:.6px;opacity:.8;margin-bottom:7px;
}
.t-pick-res-t{
  font-size:21px;font-weight:600;letter-spacing:-.3px;margin-bottom:9px;
}
.t-pick-res-t em{font-style:normal;opacity:.75;font-size:14px;font-weight:400;margin-left:8px}
.t-pick-res-d{font-size:13.5px;line-height:1.7;opacity:.94;margin-bottom:16px}
.t-pick-res-act{display:flex;gap:10px;flex-wrap:wrap}
.t-pick-res-act a{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 17px;border-radius:9px;font-size:13.5px;
  text-decoration:none;transition:all .18s;
}
.t-pick-res-act a.pri{background:#fff;color:var(--brand-deep);font-weight:600}
.t-pick-res-act a.pri:hover{box-shadow:0 4px 14px rgba(0,0,0,.16)}
.t-pick-res-act a.sec{
  border:1px solid rgba(255,255,255,.45);color:#fff;
}
.t-pick-res-act a.sec:hover{background:rgba(255,255,255,.12)}
.t-pick-res-act svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.t-pick-alt{
  margin-top:12px;padding:13px 18px;
  background:var(--card);border:1px solid var(--stroke);
  border-radius:12px;font-size:13px;color:var(--text-dim);line-height:1.7;
}
.t-pick-alt b{color:var(--text)}

/* ── 工具总览页卡片 ── */
.t-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));
  gap:16px;
}
.t-card{
  background:var(--card);border:1px solid var(--stroke);
  border-radius:16px;padding:22px;text-decoration:none;color:var(--text);
  display:flex;flex-direction:column;gap:12px;
  transition:all .2s;position:relative;overflow:hidden;
}
.t-card::after{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,#1fbf7e,#0a8a58);
  opacity:0;transition:opacity .2s;
}
.t-card:hover{
  border-color:var(--stroke-strong);
  box-shadow:0 8px 16px rgba(16,50,34,.06),0 20px 44px rgba(13,165,107,.09);
  transform:translateY(-3px);
}
.t-card:hover::after{opacity:1}
.t-card-h{display:flex;align-items:center;gap:12px}
.t-card-logo{
  width:42px;height:42px;border-radius:11px;flex:none;
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;color:#fff;letter-spacing:-.5px;
}
.t-card-n{font-size:16px;font-weight:600;letter-spacing:-.2px}
.t-card-m{font-size:12px;color:var(--text-faint);margin-top:2px}
.t-card-d{font-size:13px;color:var(--text-dim);line-height:1.65;flex:1}
.t-card-f{
  display:flex;gap:6px;flex-wrap:wrap;padding-top:2px;
}
.t-card-f span{
  font-size:11.5px;background:var(--bg2);color:var(--text-dim);
  padding:2px 9px;border-radius:6px;
}
.t-card-go{
  font-size:13px;color:var(--brand);font-weight:500;
  display:flex;align-items:center;gap:5px;
}
.t-card-go svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}