/* ===== 视觉语言对齐产品本体 frontend/src/App.css =====
     深空基底 + 鎏金暖调 + 科幻靛紫 + 衬线展示字体 */
  :root{
    --space-0:#05070f; --space-1:#0a0e1c;
    --surface-1:#0e1426; --surface-2:#131b32; --surface-3:#1a2440;
    --glass:rgba(14,20,38,.66);
    --gold:#e7c178; --gold-bright:#f6dcab; --gold-deep:#b3893f;
    --gold-soft:rgba(231,193,120,.10); --gold-line:rgba(231,193,120,.26);
    --sci-violet:#8b7cff; --sci-cyan:#5fd0e8; --sci-glow:rgba(139,124,255,.14);
    --text-1:#f3eee2; --text-2:#b3ad9c; --text-3:#7c7868;
    --border:rgba(231,193,120,.16); --border-soft:rgba(255,255,255,.06);
    --primary:#8b7cff; --primary-hover:#6f5cf0; --primary-soft:rgba(139,124,255,.12);
    --success:#34d399; --warning:#fbbf24; --danger:#f87171;
    --font-display:'Playfair Display','Noto Serif SC','Songti SC','STSong',Georgia,'Times New Roman',serif;
    --font-sans:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'PingFang SC','Microsoft YaHei',Arial,sans-serif;
    /* 兼容旧类名（映射到金色体系） */
    --bg:var(--space-1); --bg2:var(--space-0); --panel:var(--surface-1); --panel2:var(--surface-2);
    --line:var(--border-soft); --line2:var(--gold-line);
    --text:var(--text-1); --muted:var(--text-2); --muted2:var(--text-3);
    --vio:var(--sci-violet); --cy:var(--sci-cyan); --pink:var(--gold); --grn:var(--success);
    --grad:linear-gradient(135deg,var(--gold),var(--gold-bright));
    --grad2:linear-gradient(135deg,var(--gold-deep),var(--gold),var(--gold-bright));
    --grad-sci:linear-gradient(135deg,var(--sci-violet),var(--sci-cyan));
    --r:14px; --maxw:1180px;
    --shadow:0 18px 50px -18px rgba(0,0,0,.75);
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{
    background:var(--space-1); color:var(--text-1);
    font-family:var(--font-sans);
    line-height:1.65; -webkit-font-smoothing:antialiased; overflow-x:hidden;
  }
  a{color:inherit;text-decoration:none}
  img{max-width:100%;display:block}
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
  .grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
  .grad-text2{background:var(--grad-sci);-webkit-background-clip:text;background-clip:text;color:transparent}
  .eyebrow{font-size:13px;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);font-weight:700;margin-bottom:14px}
  .sec-title{font-family:var(--font-display);font-size:clamp(26px,3.4vw,40px);line-height:1.2;font-weight:700;letter-spacing:0}
  .sec-sub{color:var(--text-2);font-size:clamp(15px,1.6vw,17px);max-width:720px;margin-top:14px}
  section{padding:84px 0;position:relative}
  .center{text-align:center}
  .center .sec-sub{margin-left:auto;margin-right:auto}

  /* NAV */
  header.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);
    background:var(--glass);border-bottom:1px solid var(--border)}
  .nav-in{max-width:var(--maxw);margin:0 auto;padding:14px 22px;display:flex;align-items:center;gap:24px}
  .logo{display:flex;align-items:center;gap:11px;font-weight:600;font-size:18px;letter-spacing:.02em;white-space:nowrap}
  .logo img{width:48px;height:48px;display:block;filter:drop-shadow(0 0 12px rgba(231,193,120,.4))}
  .logo .lt{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:600}
  .nav-links{display:flex;gap:26px;margin-left:auto;font-size:14.5px;color:var(--text-2)}
  .nav-links a{transition:color .2s}
  .nav-links a:hover{color:var(--gold-bright)}
  .nav-cta{margin-left:6px}
  .btn{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:14.5px;
    padding:11px 20px;border-radius:.5rem;border:1px solid transparent;cursor:pointer;transition:.22s;white-space:nowrap}
  .btn-primary{background:var(--grad);color:#1a1206;box-shadow:0 10px 30px -12px rgba(231,193,120,.5)}
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 40px -14px rgba(231,193,120,.62)}
  .btn-ghost{background:transparent;color:var(--text-2);border:1px solid var(--border)}
  .btn-ghost:hover{color:var(--text-1);background:var(--gold-soft);border-color:var(--gold-line)}
  .btn-lg{padding:15px 30px;font-size:16px}
  .burger{display:none;flex-direction:column;gap:5px;cursor:pointer;margin-left:auto}
  .burger span{width:22px;height:2px;background:var(--text-1);border-radius:2px}

  /* HERO */
  .hero{padding:96px 0 70px;overflow:hidden}
  .hero::before{content:"";position:absolute;inset:0;
    background:radial-gradient(900px 520px at 78% -8%,var(--sci-glow),transparent 62%),
               radial-gradient(700px 480px at 8% 12%,rgba(95,208,232,.08),transparent 58%);
    pointer-events:none}
  .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center;position:relative}
  .hero h1{font-family:var(--font-display);font-size:clamp(34px,5vw,58px);line-height:1.16;font-weight:700;letter-spacing:.01em}
  .hero .mark{display:block;width:auto;height:150px;margin-bottom:24px;filter:drop-shadow(0 0 24px rgba(231,193,120,.45))}
  .hero p.lead{color:var(--text-2);font-size:clamp(16px,1.8vw,19px);margin-top:22px;max-width:560px}
  .hero p.lead b{color:var(--gold-bright);font-weight:600}
  .hero-cta{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}
  .trust{display:flex;gap:10px;flex-wrap:wrap;margin-top:30px}
  .chip{font-size:12.5px;color:var(--text-2);background:var(--gold-soft);
    border:1px solid var(--gold-line);border-radius:999px;padding:7px 13px;display:inline-flex;align-items:center;gap:7px}
  .chip b{color:var(--gold-bright);font-weight:600}
  .chip .ic{width:7px;height:7px;border-radius:50%;background:var(--success);box-shadow:0 0 8px var(--success)}

  /* HERO VISUAL */
  .ribbon{background:linear-gradient(160deg,var(--surface-2),var(--surface-1));border:1px solid var(--gold-line);
    border-radius:18px;padding:26px;box-shadow:var(--shadow);position:relative}
  .ribbon h4{font-family:var(--font-display);font-size:14px;color:var(--gold);font-weight:600;letter-spacing:.06em;margin-bottom:20px}
  .flow{display:flex;flex-direction:column;gap:0}
  .fnode{display:flex;align-items:center;gap:14px;padding:11px 14px;border-radius:10px;
    background:var(--gold-soft);border:1px solid var(--gold-line);position:relative}
  .fnode + .fnode{margin-top:14px}
  .fnode .num{width:30px;height:30px;flex:0 0 30px;border-radius:8px;background:var(--grad);
    color:#1a1206;font-weight:700;display:grid;place-items:center;font-size:14px}
  .fnode .tx b{display:block;font-size:14.5px;color:var(--text-1)}
  .fnode .tx span{font-size:12px;color:var(--text-3)}
  .fnode .tag{margin-left:auto;font-size:11px;color:var(--sci-cyan);border:1px solid rgba(95,208,232,.28);
    padding:3px 9px;border-radius:999px}
  .ribbon .arrow{text-align:center;color:var(--text-3);font-size:13px;margin:3px 0}

  /* STATS */
  .stats{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
  .stat{background:var(--surface-1);border:1px solid var(--border);border-radius:12px;padding:26px 20px;text-align:center}
  .stat .n{font-family:var(--font-display);font-size:clamp(26px,3vw,38px);font-weight:700;letter-spacing:.02em}
  .stat .l{color:var(--text-2);font-size:13.5px;margin-top:8px}

  /* PIPELINE STEPS */
  .steps{display:grid;grid-template-columns:repeat(7,1fr);gap:12px;margin-top:46px}
  .step{background:var(--surface-1);border:1px solid var(--border);border-radius:12px;padding:18px 14px;
    position:relative;transition:.25s}
  .step:hover{transform:translateY(-4px);border-color:var(--gold-line);background:var(--surface-2)}
  .step .si{width:38px;height:38px;border-radius:10px;background:var(--gold-soft);
    border:1px solid var(--gold-line);display:grid;place-items:center;font-weight:700;color:var(--gold);margin-bottom:12px}
  .step h4{font-size:15px;margin-bottom:6px;color:var(--text-1)}
  .step p{font-size:12.5px;color:var(--text-3)}
  .step .con{position:absolute;right:-10px;top:34px;color:var(--gold-deep);font-size:16px;z-index:2}
  .step:last-child .con{display:none}

  /* CARDS GRID */
  .grid{display:grid;gap:18px;margin-top:46px}
  .g3{grid-template-columns:repeat(3,1fr)}
  .g2{grid-template-columns:repeat(2,1fr)}
  .card{background:var(--surface-1);border:1px solid var(--border);border-radius:var(--r);padding:26px;transition:.25s;position:relative;overflow:hidden}
  .card:hover{transform:translateY(-4px);border-color:var(--gold-line);box-shadow:var(--shadow)}
  .card .ic{width:46px;height:46px;border-radius:12px;background:var(--grad);display:grid;place-items:center;
    margin-bottom:16px;box-shadow:0 8px 24px -10px rgba(231,193,120,.45)}
  .card .ic svg{width:24px;height:24px}
  .card h3{font-family:var(--font-display);font-size:19px;margin-bottom:9px}
  .card p{color:var(--text-2);font-size:14px}
  .card .tags{margin-top:14px;display:flex;flex-wrap:wrap;gap:7px}
  .card .tags span{font-size:11.5px;color:var(--sci-cyan);background:rgba(95,208,232,.08);
    border:1px solid rgba(95,208,232,.22);padding:4px 9px;border-radius:999px}

  /* DEMO MEDIA */
  .demo{margin-top:16px;border-radius:11px;overflow:hidden;border:1px solid var(--gold-line);background:var(--space-0);position:relative}
  .demo video{width:100%;display:block;max-height:300px;background:var(--space-0)}
  .demo .dlab{position:absolute;left:9px;top:9px;font-size:10.5px;background:rgba(5,7,15,.75);
    border:1px solid var(--gold-line);padding:3px 8px;border-radius:6px;backdrop-filter:blur(4px);z-index:2;color:var(--gold-bright)}
  .demo .dcap{position:absolute;left:0;right:0;bottom:0;padding:14px 12px 9px;font-size:11.5px;color:var(--text-2);
    background:linear-gradient(transparent,rgba(5,7,15,.9))}
  .demo img{width:100%;display:block}
  .demopair{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:16px}
  .demopair .p{border-radius:10px;overflow:hidden;border:1px solid var(--gold-line);position:relative;background:var(--space-0)}
  .demopair .p img{width:100%;height:150px;object-fit:cover}
  .demopair .p .pl{position:absolute;left:8px;bottom:8px;font-size:10.5px;background:rgba(5,7,15,.75);
    border:1px solid var(--gold-line);padding:3px 8px;border-radius:6px;color:var(--gold-bright)}
  .audiowrap{margin-top:16px;display:flex;flex-direction:column;gap:10px}
  .audiowrap .arow{display:flex;align-items:center;gap:11px;background:var(--surface-2);
    border:1px solid var(--border);border-radius:10px;padding:10px 13px}
  .audiowrap .arow .anav{width:32px;height:32px;flex:0 0 32px;border-radius:50%;background:var(--grad);
    display:grid;place-items:center;cursor:pointer;transition:.2s;color:#1a1206}
  .audiowrap .arow .anav:hover{transform:scale(1.08)}
  .audiowrap audio{flex:1;height:34px}
  .demotag{display:inline-flex;align-items:center;gap:6px;font-size:10.5px;color:var(--success);
    background:rgba(52,211,153,.1);border:1px solid rgba(52,211,153,.3);padding:4px 10px;border-radius:999px;margin-top:12px}
  .demotag .dl{width:6px;height:6px;border-radius:50%;background:var(--success);animation:pulse 1.6s infinite}
  @keyframes pulse{0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(52,211,153,.6)}50%{opacity:.5;box-shadow:0 0 0 5px rgba(52,211,153,0)}}

  /* GENERATION MATRIX */
  .genwrap{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:46px}
  .gen{background:var(--surface-1);border:1px solid var(--border);border-radius:var(--r);padding:24px;transition:.25s;position:relative;overflow:hidden;display:flex;flex-direction:column}
  .gen:hover{transform:translateY(-4px);border-color:var(--gold-line);box-shadow:var(--shadow)}
  .gen .gtop{display:flex;align-items:center;gap:12px;margin-bottom:6px}
  .gen .gic{width:44px;height:44px;flex:0 0 44px;border-radius:12px;display:grid;place-items:center;box-shadow:0 8px 22px -10px rgba(231,193,120,.4)}
  .gen .gic svg{width:23px;height:23px}
  .gen h3{font-family:var(--font-display);font-size:19px}
  .gen .gsub{font-size:12px;color:var(--text-3);margin-left:auto;text-align:right;line-height:1.3}
  .gen>p{color:var(--text-2);font-size:13.5px;margin:10px 0 4px}
  .genlist{list-style:none;margin-top:12px;display:flex;flex-direction:column;gap:9px}
  .genlist li{display:flex;gap:9px;align-items:flex-start;font-size:13px;color:var(--text-1)}
  .genlist li .dotc{width:6px;height:6px;flex:0 0 6px;border-radius:50%;background:var(--gold);margin-top:7px}
  .genlist li b{font-weight:600}
  .genlist li span{color:var(--text-3);font-size:12.5px}
  .genfoot{margin-top:14px;font-size:11.5px;color:var(--text-3);border-top:1px dashed var(--border);padding-top:10px}
  .gic.g-img{background:var(--grad)}
  .gic.g-edit{background:linear-gradient(135deg,var(--gold-deep),var(--gold))}
  .gic.g-i2v{background:var(--grad-sci)}
  .gic.g-t2v{background:linear-gradient(135deg,var(--sci-cyan),var(--primary))}
  .gic.g-avatar{background:linear-gradient(135deg,var(--gold-deep),var(--gold-bright))}
  .gic.g-audio{background:linear-gradient(135deg,var(--primary),var(--sci-cyan))}

  /* OUTCOMES (可交付成品) */
  .outwrap{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:46px}
  .outcard{background:var(--surface-1);border:1px solid var(--border);border-radius:var(--r);overflow:hidden;
    transition:.25s;position:relative;display:flex;flex-direction:column}
  .outcard:hover{transform:translateY(-4px);border-color:var(--gold-line);box-shadow:var(--shadow)}
  .outcard .omedia{position:relative;aspect-ratio:16/10;background:var(--space-0);overflow:hidden}
  .outcard .omedia img,.outcard .omedia video{width:100%;height:100%;object-fit:cover;display:block}
  .outcard .obadge{position:absolute;left:10px;top:10px;z-index:2;font-size:11px;font-weight:600;color:#1a1206;
    background:var(--grad);padding:4px 10px;border-radius:999px;box-shadow:0 6px 16px -8px rgba(231,193,120,.6)}
  .outcard .obody{padding:16px 17px 18px;display:flex;flex-direction:column;gap:9px;flex:1}
  .outcard h3{font-family:var(--font-display);font-size:18px;font-weight:700;display:flex;align-items:center;gap:10px;line-height:1.25}
  .outcard h3 .oic{width:30px;height:30px;flex:0 0 30px;border-radius:9px;display:grid;place-items:center;
    background:var(--grad-sci);color:#0a0a12}
  .outcard h3 .oic svg{width:17px;height:17px}
  .outcard p{font-size:13px;color:var(--text-2);line-height:1.55}
  .outcard .ochips{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:4px}
  .outcard .ochip{font-size:11px;color:var(--text-2);background:var(--gold-soft);border:1px solid var(--gold-line);
    border-radius:999px;padding:4px 9px;white-space:nowrap}
  .outcard .omedia.audio{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
    background:linear-gradient(135deg,rgba(139,124,255,.14),rgba(231,193,120,.1))}
  .outcard .omedia.audio .aicon{color:var(--gold-bright)}
  .outcard .omedia.audio .aicon svg{width:36px;height:36px}
  .outcard .omedia.audio audio{width:86%;max-width:320px;height:34px}
  .outcard .demopair{display:grid;grid-template-columns:1fr 1fr;gap:0}
  .outcard .demopair img{width:100%;height:100%;object-fit:cover}
  @media(max-width:980px){.outwrap{grid-template-columns:repeat(2,1fr)}}
  @media(max-width:560px){.outwrap{grid-template-columns:1fr}}

  /* CONSISTENCY split */
  .split{display:grid;grid-template-columns:.95fr 1.05fr;gap:44px;align-items:center;margin-top:44px}
  .frames{display:grid;grid-template-columns:1fr 1fr;gap:14px}
  .frame{border-radius:12px;overflow:hidden;border:1px solid var(--gold-line);position:relative;background:var(--space-0)}
  .frame img{width:100%;height:230px;object-fit:cover}
  .frame .lab{position:absolute;left:10px;bottom:10px;font-size:11.5px;background:rgba(5,7,15,.75);
    border:1px solid var(--gold-line);padding:4px 9px;border-radius:6px;backdrop-filter:blur(4px);color:var(--gold-bright)}
  .feat-list{list-style:none;display:flex;flex-direction:column;gap:14px;margin-top:8px}
  .feat-list li{display:flex;gap:12px;align-items:flex-start}
  .feat-list .ck{width:22px;height:22px;flex:0 0 22px;border-radius:6px;background:rgba(52,211,153,.13);
    border:1px solid rgba(52,211,153,.4);display:grid;place-items:center;color:var(--success);font-weight:700;font-size:13px;margin-top:2px}
  .feat-list b{display:block;color:var(--text-1)}
  .feat-list span{color:var(--text-2);font-size:13.5px}

  /* COST compare */
  .vs{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:44px}
  .vcard{border-radius:var(--r);padding:30px;border:1px solid var(--border);position:relative}
  .vcard.local{background:linear-gradient(165deg,var(--gold-soft),rgba(139,124,255,.06));border-color:var(--gold-line)}
  .vcard.cloud{background:var(--surface-1);opacity:.88}
  .vcard .badge{position:absolute;top:-13px;left:26px;font-size:12px;font-weight:600;padding:5px 13px;border-radius:999px}
  .vcard.local .badge{background:var(--grad);color:#1a1206}
  .vcard.cloud .badge{background:var(--surface-3);color:var(--text-3);border:1px solid var(--border)}
  .vcard h3{font-family:var(--font-display);font-size:19px;margin:6px 0 16px}
  .vrow{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px dashed var(--border);font-size:14.5px}
  .vrow:last-child{border-bottom:none}
  .vrow .k{color:var(--text-3)}
  .vcard.local .v{color:var(--text-1);font-weight:600}
  .vcard.cloud .v{color:var(--text-3)}
  .big-num{font-family:var(--font-display);font-size:clamp(38px,6vw,64px);font-weight:700;letter-spacing:.02em;line-height:1;margin-top:6px}

  /* SCENARIOS */
  .scn{background:var(--surface-1);border:1px solid var(--border);border-radius:var(--r);padding:28px;transition:.25s}
  .scn:hover{border-color:var(--gold-line);transform:translateY(-4px)}
  .scn .q{font-size:13px;color:var(--gold);font-weight:600;letter-spacing:.06em}
  .scn h3{font-family:var(--font-display);font-size:20px;margin:10px 0}
  .scn p{color:var(--text-2);font-size:14px}
  .scn .meta{margin-top:16px;font-size:12.5px;color:var(--text-3);border-top:1px solid var(--border);padding-top:12px}

  /* TECH */
  .layers{display:grid;gap:12px;margin-top:40px}
  .layer{border:1px solid var(--border);border-radius:12px;padding:18px 22px;display:flex;align-items:center;gap:18px;
    background:linear-gradient(90deg,var(--gold-soft),transparent)}
  .layer .ln{font-size:13px;color:var(--text-3);width:120px;flex:0 0 120px;font-weight:600}
  .layer .lt{font-weight:600;font-size:16px;color:var(--text-1)}
  .layer .ld{color:var(--text-3);font-size:13.5px;margin-left:auto;text-align:right}
  .stack{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;justify-content:center}
  .stack span{font-size:13px;background:var(--surface-2);border:1px solid var(--border);border-radius:8px;padding:9px 15px;color:var(--text-2)}

  /* PRICING */
  .price{background:var(--surface-1);border:1px solid var(--border);border-radius:var(--r);padding:30px;display:flex;flex-direction:column;position:relative}
  .price.feat{background:linear-gradient(170deg,var(--gold-soft),rgba(139,124,255,.05));border-color:var(--gold-line)}
  .price .pop{position:absolute;top:-12px;right:22px;font-size:11.5px;font-weight:600;background:var(--grad);color:#1a1206;padding:5px 12px;border-radius:999px}
  .price .pn{font-family:var(--font-display);font-size:16px;color:var(--gold);font-weight:600}
  .price .pp{font-family:var(--font-display);font-size:34px;font-weight:700;margin:8px 0 2px}
  .price .pp small{font-size:14px;color:var(--text-3);font-weight:500;font-family:var(--font-sans)}
  .price .pd{color:var(--text-2);font-size:13.5px;min-height:42px}
  .price ul{list-style:none;margin:18px 0 22px;display:flex;flex-direction:column;gap:11px}
  .price li{display:flex;gap:10px;font-size:13.5px;color:var(--text-1)}
  .price li .ck{color:var(--success);font-weight:700}
  .price .btn{width:100%;justify-content:center;margin-top:auto}

  /* COMPARE table */
  .ctable{width:100%;border-collapse:collapse;margin-top:40px;font-size:14px;border:1px solid var(--border);border-radius:var(--r);overflow:hidden}
  .ctable th,.ctable td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--border)}
  .ctable thead th{background:var(--surface-2);font-size:14px}
  .ctable thead th:first-child{color:var(--text-3);font-weight:500}
  .ctable tbody tr:last-child td{border-bottom:none}
  .ctable .us{color:var(--gold-bright);font-weight:600}
  .ctable .them{color:var(--text-3)}
  .ctable td:first-child{color:var(--text-3)}

  /* SHOWCASE */
  .show{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:42px}
  .show .s{border-radius:12px;overflow:hidden;border:1px solid var(--gold-line);position:relative;aspect-ratio:9/16;background:var(--space-0)}
  .show .s.wide{grid-column:span 2;aspect-ratio:16/10}
  .show .s img{width:100%;height:100%;object-fit:cover;transition:.4s}
  .show .s:hover img{transform:scale(1.05)}
  .show .s .cap{position:absolute;left:0;right:0;bottom:0;padding:18px 14px;font-size:12.5px;font-weight:500;color:var(--gold-bright);
    background:linear-gradient(transparent,rgba(5,7,15,.9))}

  /* CTA */
  .cta-sec{padding:90px 0}
  .cta-box{background:linear-gradient(135deg,var(--gold-soft),rgba(139,124,255,.07));border:1px solid var(--gold-line);
    border-radius:22px;padding:56px 40px;text-align:center;position:relative;overflow:hidden}
  .cta-box::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 300px at 50% -20%,rgba(231,193,120,.1),transparent)}
  .cta-box h2{font-family:var(--font-display);font-size:clamp(26px,3.6vw,40px);font-weight:700;letter-spacing:.01em;position:relative}
  .cta-box p{color:var(--text-2);margin:16px auto 30px;max-width:560px;position:relative}
  .cta-box .hero-cta{justify-content:center;position:relative}

  /* FOOTER */
  footer{border-top:1px solid var(--border);padding:50px 0 40px;color:var(--text-3);background:var(--space-0)}
  .foot{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px}
  .foot h5{font-size:13px;color:var(--gold);margin-bottom:14px;font-weight:600}
  .foot a{display:block;font-size:13.5px;color:var(--text-3);margin-bottom:9px;transition:.2s}
  .foot a:hover{color:var(--gold-bright)}
  .foot .desc{font-size:13.5px;color:var(--text-3);margin-top:14px;max-width:300px}
  .foot-bottom{border-top:1px solid var(--border);margin-top:40px;padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:12.5px;color:var(--text-3)}

  /* reveal */
  .reveal{opacity:0;transform:translateY(24px);transition:.7s cubic-bezier(.2,.7,.2,1)}
  .reveal.in{opacity:1;transform:none}

  @media(max-width:980px){
    .hero-grid{grid-template-columns:1fr;gap:36px}
    .stats{grid-template-columns:repeat(2,1fr)}
    .steps{grid-template-columns:repeat(2,1fr)}
    .step .con{display:none}
    .g3{grid-template-columns:1fr}
    .g2{grid-template-columns:1fr}
    .mod-grid{grid-template-columns:1fr}
    .genwrap{grid-template-columns:1fr}
    .split{grid-template-columns:1fr;gap:28px}
    .vs{grid-template-columns:1fr}
    .show{grid-template-columns:repeat(2,1fr)}
    .show .s.wide{grid-column:span 2}
    .foot{grid-template-columns:1fr 1fr}
    .nav-links{display:none}
    .burger{display:flex}
    .nav-links.open{display:flex;position:absolute;top:62px;left:0;right:0;flex-direction:column;
      background:rgba(5,7,15,.97);border-bottom:1px solid var(--border);padding:18px 22px;gap:16px}
  }
  @media(max-width:560px){
    .stats{grid-template-columns:1fr 1fr}
    .steps{grid-template-columns:1fr}
    .show{grid-template-columns:1fr 1fr}
    section{padding:60px 0}
  }
  /* FAQ */
  .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:38px}
  .faq-item{background:var(--surface-1);border:1px solid var(--border-soft);border-radius:var(--r);
    padding:22px 24px;transition:.22s}
  .faq-item:hover{border-color:var(--gold-line);transform:translateY(-2px);box-shadow:var(--shadow)}
  .faq-item h3{font-size:16.5px;color:var(--gold-bright);font-weight:600;margin-bottom:10px;line-height:1.4}
  .faq-item h3::before{content:"Q";display:inline-block;margin-right:9px;color:var(--gold);
    font-family:var(--font-display);font-weight:700}
  .faq-item p{color:var(--text-2);font-size:14.5px;line-height:1.72}
  @media(max-width:760px){.faq-grid{grid-template-columns:1fr}}

  /* ===== 多页站辅助类（SEO/GEO 扩展页共用） ===== */
  .cols-2{grid-template-columns:repeat(2,1fr)}
  .cols-3{grid-template-columns:repeat(3,1fr)}
  .cols-4{grid-template-columns:repeat(4,1fr)}
  .page-hero{padding:120px 0 60px;position:relative;overflow:hidden}
  .page-hero::before{content:"";position:absolute;inset:0;
    background:radial-gradient(900px 460px at 80% -10%,var(--sci-glow),transparent 62%),
               radial-gradient(700px 420px at 6% 8%,rgba(95,208,232,.08),transparent 58%);pointer-events:none}
  .page-hero .wrap{position:relative}
  .page-hero h1{font-family:var(--font-display);font-size:clamp(32px,4.6vw,52px);line-height:1.18;font-weight:700}
  .page-hero p.lead{color:var(--text-2);font-size:clamp(16px,1.8vw,19px);margin-top:20px;max-width:720px}
  .card h3 .num{color:var(--gold);font-family:var(--font-display);margin-right:8px}
  .cmp{width:100%;border-collapse:collapse;margin-top:30px;font-size:14.5px}
  .cmp th,.cmp td{padding:14px 16px;border-bottom:1px solid var(--border-soft);text-align:left;vertical-align:top}
  .cmp th{color:var(--gold-bright);font-weight:600;font-size:15px}
  .cmp td:first-child{color:var(--text-1);font-weight:500}
  .cmp tr:hover td{background:rgba(231,193,120,.04)}
  .yes{color:var(--success);font-weight:600}
  .no{color:var(--text-3)}
  .blog-card{display:flex;flex-direction:column;gap:10px}
  .blog-card .meta{font-size:12.5px;color:var(--text-3)}
  .blog-card h3{font-size:18px}
  .blog-card p{font-size:14px}
  .crumb{padding:18px 0 0;font-size:13px;color:var(--text-3)}
  .crumb a{color:var(--text-2)}
  .crumb a:hover{color:var(--gold-bright)}
  .tier-badge{position:absolute;top:14px;right:14px;background:var(--grad);color:#1a1206;
    font-size:12px;font-weight:700;padding:4px 10px;border-radius:20px}
  .price .price-num{font-family:var(--font-display);font-size:34px;color:var(--gold-bright);font-weight:700;margin:8px 0}
  .price ul{list-style:none;margin:14px 0;display:flex;flex-direction:column;gap:9px}
  .price ul li{color:var(--text-2);font-size:14px;padding-left:20px;position:relative}
  .price ul li::before{content:"✓";position:absolute;left:0;color:var(--gold)}
  .price .btn{margin-top:auto}
  @media(max-width:860px){.cols-3,.cols-4{grid-template-columns:repeat(2,1fr)}}
  @media(max-width:560px){.cols-2,.cols-3,.cols-4{grid-template-columns:1fr}}

  /* ===== 页脚：旗下产品 + 出品署名（搬自参考站，适配主题） ===== */
  .footer-sep{margin:0 10px;color:var(--text-3)}
  .footer-products{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:16px}
  .fp-label{font-size:12px;color:var(--text-3);white-space:nowrap}
  .fp-chips{display:flex;gap:8px;flex-wrap:wrap}
  .fp-chip{font-size:12px;color:var(--text-2);padding:5px 12px;border:1px solid var(--border-soft);
    border-radius:20px;background:var(--surface-1);text-decoration:none;transition:.2s}
  a.fp-chip:hover{color:var(--gold-bright);border-color:var(--gold-line);background:var(--gold-soft)}
  .fp-chip-current{color:var(--gold);border-color:var(--gold-line);background:var(--gold-soft)}
  .engine-credit{margin-top:20px;padding-top:16px;border-top:1px solid var(--border-soft);
    font-size:12px;color:var(--text-3);text-align:center}
  .engine-credit a{color:var(--gold);text-decoration:none}
  .engine-credit a:hover{color:var(--gold-bright)}

  /* ===== 关于我们页 ===== */
  .about-hero{padding:10px 0 6px}
  .about-mark{display:block;width:min(320px,68vw);height:auto;margin:0 auto 28px;
    filter:drop-shadow(0 18px 44px rgba(231,193,120,.35))}
  .about-quote{font-family:var(--font-display);font-size:clamp(20px,2.8vw,30px);font-weight:600;
    color:var(--gold-bright);line-height:1.5;margin:0 auto 18px;max-width:760px}