:root{
  --bg:#070b14;
  --panel:rgba(255,255,255,.06);
  --panel2:rgba(255,255,255,.08);
  --text:rgba(255,255,255,.92);
  --muted:rgba(255,255,255,.68);
  --line:rgba(255,255,255,.12);
  --shadow:0 22px 70px rgba(0,0,0,.38);
  --radius:22px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  color:var(--text);
  background:
    radial-gradient(1200px 700px at 18% -10%, rgba(120,160,255,.35), transparent 60%),
    radial-gradient(900px 520px at 92% 8%, rgba(255,110,200,.22), transparent 56%),
    radial-gradient(1000px 600px at 50% 105%, rgba(90,255,210,.16), transparent 55%),
    linear-gradient(180deg, #070b14 0%, #060a12 55%, #050912 100%);
}
a{color:inherit;text-decoration:none}
.container{width:min(1160px,92vw);margin:0 auto}
.small{font-size:12px;color:rgba(255,255,255,.56)}
.card{
  border:1px solid var(--line);
  background:var(--panel);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.btn{
  display:inline-flex; align-items:center; gap:10px;
  padding:10px 14px;
  border-radius:14px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.10);
  font-weight:680;
  font-size:14px;
  transition:transform .12s ease, background .12s ease;
}
.btn:hover{transform:translateY(-1px); background:rgba(255,255,255,.16)}
.btn.primary{
  background:rgba(120,160,255,.22);
  border-color:rgba(120,160,255,.38);
}
.btn.primary:hover{background:rgba(120,160,255,.30)}
.btn.ghost{background:transparent}
.badge{
  display:inline-flex; align-items:center; gap:8px;
  padding:8px 12px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--muted);
  font-size:13px;
}
.dot{
  width:9px;height:9px;border-radius:50%;
  background:rgba(110,255,210,.85);
  box-shadow:0 0 0 4px rgba(110,255,210,.13);
}

/* nav */
.nav{
  position:sticky; top:0; z-index:50;
  backdrop-filter: blur(14px);
  background: rgba(7,11,20,.66);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:14px}
.brand{display:flex;align-items:center;gap:12px}
.brand img{width:38px;height:38px;border-radius:10px;background:#fff;padding:4px}
.brand .name{font-weight:780;letter-spacing:.2px}
.brand .tag{color:var(--muted);font-size:12px;margin-top:2px}
.navlinks{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:14px;flex-wrap:wrap}
.navlinks a{padding:8px 10px;border-radius:12px}
.navlinks a:hover{background:rgba(255,255,255,.06); color:var(--text)}
.navcta{display:flex;gap:10px;align-items:center;flex-wrap:wrap}

/* hero */
.hero{padding:72px 0 30px}
.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:20px;align-items:stretch}
h1{
  margin:14px 0 10px;
  font-size: clamp(34px, 4.2vw, 56px);
  line-height:1.05;
  letter-spacing:-.5px;
}
.lead{
  margin:0 0 18px;
  color:var(--muted);
  line-height:1.75;
  max-width: 64ch;
  font-size:16px;
}
.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px}
.stats{display:flex;gap:12px;flex-wrap:wrap;margin-top:16px}
.stat{
  padding:10px 12px;
  border-radius:16px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  min-width: 160px;
}
.stat .k{font-weight:820}
.stat .d{color:var(--muted);font-size:12px;margin-top:4px;line-height:1.5}

.hero-card{padding:16px;display:flex;flex-direction:column;gap:14px}
.hero-card .shot{
  border-radius:18px; overflow:hidden;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.04);
}
.hero-card img{width:100%;height:auto;display:block}
.hero-card .row{display:flex;gap:10px}
.mini{flex:1;padding:12px;border-radius:18px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.06)}
.mini .t{font-weight:760;font-size:13px}
.mini .d{color:var(--muted);font-size:12px;margin-top:4px;line-height:1.55}

/* sections */
.section{padding:46px 0}
.section h2{margin:0 0 10px;font-size:26px;letter-spacing:-.2px}
.section .sub{margin:0 0 18px;color:var(--muted);line-height:1.75;max-width:88ch}

/* tool grid */
.tools{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:16px;
}
.tool{padding:16px;display:flex;flex-direction:column;gap:12px}
.tool-top{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}
.tool-title{font-weight:820}
.tool-desc{color:var(--muted);font-size:13px;line-height:1.7;margin-top:2px}
.tool-icon{
  width:44px;height:44px;border-radius:16px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.06);
  display:grid;place-items:center; overflow:hidden;
}
.tool-icon img{width:44px;height:44px}
.tool-shot{
  border-radius:18px; overflow:hidden;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.04);
}
.tool-shot img{width:100%;height:auto;display:block}
.tool-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:2px}

/* highlight grid */
.highlights{display:grid;grid-template-columns: repeat(4, 1fr);gap:16px}
.hi{padding:16px}
.hi .ic{width:44px;height:44px;border-radius:16px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);overflow:hidden}
.hi .ic img{width:44px;height:44px}
.hi h3{margin:12px 0 6px;font-size:15px}
.hi p{margin:0;color:var(--muted);font-size:13px;line-height:1.7}

/* pricing */
.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.plan{padding:18px}
.plan .top{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}
.plan .name{font-weight:840}
.plan .tag{color:var(--muted);font-size:12px}
.plan .money{font-size:30px;font-weight:860;margin:14px 0 4px}
.plan .note{margin:0 0 14px;color:var(--muted);font-size:13px;line-height:1.65}
.plan ul{margin:0;padding-left:18px;color:var(--muted);font-size:13px;line-height:1.9}
.plan .actions{margin-top:14px;display:flex;gap:10px;flex-wrap:wrap}

/* faq */
.faq{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.qa{padding:16px}
.qa .q{font-weight:800;margin-bottom:6px}
.qa .a{color:var(--muted);font-size:13px;line-height:1.75}

/* footer */
.footer{padding:28px 0 44px;border-top:1px solid var(--line);color:var(--muted)}
.footer-grid{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.footer a{color:rgba(200,220,255,.92)}
.footer a:hover{text-decoration:underline}

/* page templates */
.page-hero{padding:54px 0 18px}
.page-hero h1{margin:12px 0 8px;font-size: clamp(30px, 3.6vw, 46px); line-height:1.1}
.breadcrumb{color:var(--muted); font-size:13px}
.content{padding:22px 0 46px}
.prose{padding:18px}
.prose h2{margin:0 0 10px;font-size:22px}
.prose h3{margin:18px 0 8px;font-size:16px}
.prose p{margin:0 0 12px;color:var(--muted); line-height:1.85}
.prose ul{margin:0 0 12px;padding-left:18px;color:var(--muted);line-height:1.9;font-size:13px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.callout{padding:16px;border-radius:18px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.05)}
.table{width:100%;border-collapse:separate;border-spacing:0}
.table th,.table td{padding:12px 12px;border-bottom:1px solid rgba(255,255,255,.12);font-size:13px}
.table th{color:rgba(255,255,255,.86);text-align:left}
.table td{color:var(--muted);line-height:1.7}
.table tr:hover td{background:rgba(255,255,255,.03)}
.notice{padding:12px 14px;border-radius:14px;border:1px solid rgba(120,160,255,.35);background:rgba(120,160,255,.14);color:rgba(255,255,255,.84);font-size:13px;line-height:1.75}
.form{display:grid;gap:12px}
.input, textarea{
  width:100%;
  padding:12px 12px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.14);
  background: rgba(0,0,0,.22);
  color: var(--text);
  outline:none;
}
textarea{min-height:140px;resize:vertical}
.input:focus, textarea:focus{border-color: rgba(120,160,255,.40)}
@media (max-width: 980px){
  .hero-grid{grid-template-columns:1fr}
  .tools{grid-template-columns:1fr}
  .highlights{grid-template-columns:1fr 1fr}
  .pricing{grid-template-columns:1fr}
  .faq{grid-template-columns:1fr}
  .navlinks{display:none}
  .grid2{grid-template-columns:1fr}
}
/* Tool detail refinements */
.detail-grid{display:grid;grid-template-columns:420px 1fr;gap:18px;align-items:start}
@media (max-width: 980px){.detail-grid{grid-template-columns:1fr}}
.preview-card{padding:14px;border-radius:18px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.05)}
.preview-card .caption{color:rgba(255,255,255,.56);font-size:12px;line-height:1.7;margin-top:8px}
.feature-card{padding:16px;border-radius:18px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.05)}
.feature-card ul{margin:8px 0 0;padding-left:18px}
.scene-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width: 980px){.scene-grid{grid-template-columns:1fr}}
.scene{padding:14px;border-radius:18px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.04)}
.scene .st{font-weight:860;margin:0 0 6px;font-size:14px}
.scene .sd{margin:0 0 8px;color:rgba(255,255,255,.68);font-size:13px;line-height:1.75}
.scene ul{margin:0;padding-left:18px;color:rgba(255,255,255,.68);font-size:13px;line-height:1.85}

/* Tool detail refinements v2 (preview positioning) */
.detail-grid{grid-template-columns:520px 1fr}
@media (max-width: 1100px){.detail-grid{grid-template-columns:1fr}}
.preview-shot{margin-top:12px;border-radius:16px;overflow:hidden;background:#fff;border:1px solid rgba(255,255,255,.10)}
.preview-shot img{display:block;width:100%;height:auto}
.preview-card .caption{margin-top:10px}

/* detail-grid force side-by-side */
@media (min-width: 981px){
  .detail-grid{grid-template-columns:520px 1fr}
}

/* Tool detail refinements v3 (prevent huge preview & lock 2-col) */
.detail-grid{
  display:grid;
  grid-template-columns: 520px 1fr;
  gap:18px;
  align-items:start;
}
@media (max-width: 980px){
  .detail-grid{grid-template-columns:1fr}
}
.preview-shot{
  margin-top:12px;
  border-radius:16px;
  overflow:hidden;
  background:#fff;
  border:1px solid rgba(255,255,255,.10);
  padding:10px;
}
.preview-shot img{
  display:block;
  width:100%;
  height:280px;        /* 关键：限制高度，避免“巨图” */
  object-fit:contain;  /* 关键：保持比例，留白即可 */
}