:root{
    --bg:#070b0a;
    --bg-2:#0a100f;
    --panel:rgba(255,255,255,.045);
    --panel-2:rgba(255,255,255,.07);
    --line:rgba(255,255,255,.09);
    --line-soft:rgba(255,255,255,.055);
    --text:#e9f1ef;
    --dim:rgba(233,241,239,.62);
    --faint:rgba(233,241,239,.38);
    --g1:#5ecb92;
    --g2:#66d8b8;
    --g3:#7fd3e4;
    --teal:#45c2b4;
    --sans:"Inter","Inter Variable","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
    --mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Consolas,"Liberation Mono",monospace;
    --r:18px;
    --max:1200px;
  }
  *{box-sizing:border-box}
  html{scroll-behavior:smooth}
  section[id],header[id]{scroll-margin-top:78px}
  code{font-family:var(--mono);font-size:.92em;color:#b6e8d9}
  body{
    margin:0;background:var(--bg);color:var(--text);
    font-family:var(--sans);font-size:16px;line-height:1.6;
    -webkit-font-smoothing:antialiased;overflow-x:hidden;
  }
  body::after{
    content:"";position:fixed;inset:0;z-index:70;pointer-events:none;opacity:.05;
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.6'/%3E%3C/svg%3E");
    mix-blend-mode:overlay;
  }
  ::selection{background:rgba(126,224,168,.28);color:#fff}
  a{color:inherit;text-decoration:none}
  img{max-width:100%}

  /* ── nav ─────────────────────────────────────────────── */
  .nav{
    position:fixed;top:0;left:0;right:0;z-index:60;
    background:rgba(7,11,10,.6);backdrop-filter:blur(16px) saturate(140%);
    border-bottom:1px solid var(--line-soft);
  }
  .nav-in{
    max-width:var(--max);margin:0 auto;padding:12px 24px;
    display:flex;align-items:center;gap:26px;
  }
  .brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.01em;font-size:17px}
  .brand .mark{width:26px;height:26px;flex:none;border-radius:8px;box-shadow:0 0 24px rgba(102,216,184,.28)}
  .nav-links{display:flex;gap:26px;margin-left:auto;font-size:14px;color:var(--dim)}
  .nav-links a{position:relative;padding:4px 0;transition:color .25s}
  .nav-links a::after{
    content:"";position:absolute;left:0;right:0;bottom:-2px;height:1px;
    background:linear-gradient(90deg,var(--g1),var(--g3));transform:scaleX(0);transform-origin:left;
    transition:transform .3s ease;
  }
  .nav-links a:hover{color:var(--text)}
  .nav-links a:hover::after{transform:scaleX(1)}
  .nav-cta{
    font-size:14px;font-weight:600;padding:9px 16px;border-radius:999px;
    border:1px solid rgba(126,216,189,.35);color:#c9f6e2;background:rgba(102,216,184,.08);
    transition:.25s;white-space:nowrap;
  }
  .nav-cta:hover{background:rgba(102,216,184,.16);border-color:rgba(126,216,189,.6)}

  /* 中 / EN 开关：两段小胶囊，不抢 CTA 的视线 */
  .lang{
    flex:none;display:inline-flex;align-items:center;gap:1px;padding:2px;
    border-radius:999px;border:1px solid var(--line-soft);background:rgba(255,255,255,.03);
  }
  .lang button{
    font:600 12px/1 var(--sans);letter-spacing:.02em;color:var(--dim);
    padding:6px 10px;border:0;border-radius:999px;background:none;cursor:pointer;
    transition:color .22s,background .22s;white-space:nowrap;
  }
  .lang button[data-lang-set="en"]{font-family:var(--mono);font-size:11.5px;letter-spacing:.04em}
  .lang button:hover{color:var(--text)}
  .lang button[aria-pressed="true"]{color:#07100e;background:linear-gradient(135deg,var(--g1),var(--g3))}
  .lang button:focus-visible{outline:2px solid rgba(126,224,168,.6);outline-offset:2px}
  .progress{height:1px;background:transparent}
  .progress i{display:block;height:1px;width:0;background:linear-gradient(90deg,var(--g1),var(--g3));box-shadow:0 0 12px rgba(126,224,168,.8)}

  /* ── shared ──────────────────────────────────────────── */
  .wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
  section{position:relative;padding:92px 0}
  #format::before,#frame::before,#power::before,#templates::before,#start::before{
    content:"";position:absolute;left:6%;right:6%;top:0;height:1px;pointer-events:none;
    background:linear-gradient(90deg,transparent,rgba(126,224,168,.16),rgba(127,211,228,.10),transparent);
  }
  .eyebrow{
    display:inline-flex;align-items:center;gap:9px;
    font:600 11.5px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:#8fe0d0;
  }
  .eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,transparent,var(--g2))}
  h2{
    font-size:clamp(1.9rem,3.5vw,2.9rem);line-height:1.15;letter-spacing:-.025em;
    margin:16px 0 18px;font-weight:700;
  }
  h2 .grad,.grad{
    background:linear-gradient(96deg,var(--g1) 0%,var(--g2) 42%,var(--g3) 100%);
    -webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .lead{color:var(--dim);font-size:clamp(15px,1.15vw,17px);line-height:1.8;max-width:64ch;margin:0}
  .sec-head{max-width:760px}
  .sec-head.center{margin:0 auto;text-align:center}
  .sec-head.center .lead{margin:0 auto}

  [data-reveal]{transition:opacity .85s cubic-bezier(.2,.7,.2,1),transform .85s cubic-bezier(.2,.7,.2,1);transition-delay:var(--d,0s)}
  html.js [data-reveal]{opacity:0;transform:translateY(26px)}
  html.js [data-reveal].in{opacity:1;transform:none}

  .btn{
    display:inline-flex;align-items:center;gap:9px;border-radius:999px;
    padding:14px 24px;font-size:15px;font-weight:600;border:1px solid transparent;
    font-family:var(--sans);line-height:1.6;
    transition:transform .2s ease,box-shadow .3s ease,background .3s ease,border-color .3s;
    cursor:pointer;
  }
  .btn:active{transform:translateY(1px) scale(.995)}
  .btn-primary{
    background:linear-gradient(100deg,var(--g1),var(--g2) 52%,var(--g3));
    color:#05231b;box-shadow:0 14px 40px -12px rgba(102,216,184,.55);
  }
  .btn-primary:hover{box-shadow:0 20px 50px -10px rgba(102,216,184,.7);transform:translateY(-2px)}
  .btn-ghost{border-color:var(--line);color:var(--text);background:rgba(255,255,255,.035)}
  .btn-ghost:hover{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.2);transform:translateY(-2px)}

  /* ── hero ────────────────────────────────────────────── */
  .hero{position:relative;padding:158px 0 40px;overflow:hidden}
  #net{position:absolute;inset:0;width:100%;height:100%;opacity:.75}
  .hero::before{
    content:"";position:absolute;inset:-10% -10% auto -10%;height:820px;
    background:
      radial-gradient(600px 380px at 18% 8%,rgba(94,203,146,.14),transparent 70%),
      radial-gradient(700px 420px at 82% 24%,rgba(127,211,228,.13),transparent 72%);
    filter:blur(6px);pointer-events:none;
  }
  .hero::after{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
    background-size:72px 72px;
    -webkit-mask-image:radial-gradient(circle 620px at var(--mx,50%) var(--my,20%),#000 10%,transparent 78%);
    mask-image:radial-gradient(circle 620px at var(--mx,50%) var(--my,20%),#000 10%,transparent 78%);
    opacity:.9;
  }
  .hero-in{position:relative;z-index:2}
  .badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
  .badge{
    font:500 12px/1 var(--mono);letter-spacing:.02em;color:var(--dim);
    padding:7px 11px;border-radius:999px;border:1px solid var(--line-soft);background:rgba(255,255,255,.03);
    display:inline-flex;align-items:center;gap:7px;
  }
  .badge i{width:5px;height:5px;border-radius:50%;background:var(--g2);box-shadow:0 0 10px var(--g2)}
  h1{
    margin:20px 0 0;font-size:clamp(2.5rem,6.1vw,5rem);line-height:1.03;
    letter-spacing:-.035em;font-weight:750;
  }
  h1 .line2{display:block}
  .hero .sub{
    margin:22px 0 0;max-width:56ch;color:var(--dim);font-size:clamp(15px,1.3vw,18px);line-height:1.8;
  }
  .hero .sub b{color:var(--text);font-weight:600}
  .cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;align-items:center}
  .hint{font:12px/1.4 var(--mono);color:var(--faint);margin-left:4px}

  /* ── studio mockup ───────────────────────────────────── */
  .studio-shell{position:relative;margin-top:54px}
  .studio-shell::before{
    content:"";position:absolute;inset:8% 4% -8% 4%;z-index:-1;
    background:radial-gradient(ellipse at 50% 40%,rgba(94,203,146,.22),rgba(127,211,228,.1) 45%,transparent 72%);
    filter:blur(52px);
  }
  .studio{
    position:relative;border:1px solid rgba(255,255,255,.11);border-radius:20px;overflow:hidden;
    background:linear-gradient(180deg,#111a18 0%,#0a100f 42%,#090f0e 100%);
    box-shadow:0 60px 120px -40px rgba(0,0,0,.95),0 0 0 1px rgba(255,255,255,.02) inset,0 1px 0 rgba(255,255,255,.07) inset;
  }
  .studio-top{
    display:flex;align-items:center;gap:10px;padding:10px 14px;
    border-bottom:1px solid var(--line-soft);background:rgba(255,255,255,.02);
  }
  .dots{display:flex;gap:6px}
  .dots i{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.14)}
  .dots i:nth-child(1){background:#e0655f}
  .dots i:nth-child(2){background:#dcae52}
  .dots i:nth-child(3){background:#5fb96a}
  .stitle{font:500 12px/1 var(--mono);color:var(--faint);margin-left:8px;letter-spacing:.03em}
  .stitle b{color:var(--dim);font-weight:500}
  .studio-top .right{margin-left:auto;display:flex;gap:7px}
  .tag{
    font:500 10.5px/1 var(--mono);letter-spacing:.06em;color:var(--dim);
    padding:5px 8px;border-radius:6px;border:1px solid var(--line-soft);background:rgba(255,255,255,.03);
  }
  .tag.on{color:#bff5e3;border-color:rgba(102,216,184,.35);background:rgba(102,216,184,.1)}
  .studio-main{display:grid;grid-template-columns:150px minmax(0,1fr) 158px;gap:1px;background:var(--line-soft)}
  .pane{background:#0a1110;padding:11px 10px;min-width:0}
  .pane h4{
    margin:2px 0 9px;font:600 10px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:rgba(233,241,239,.34);
  }
  .pool{display:grid;grid-template-columns:1fr 1fr;gap:7px}
  .thumb{
    aspect-ratio:16/10;border-radius:5px;border:1px solid rgba(255,255,255,.08);
    position:relative;overflow:hidden;
  }
  .thumb::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(160deg,rgba(255,255,255,.16),transparent 60%);
  }
  .t1{background:linear-gradient(140deg,#1c5b4a,#0d2a26)}
  .t2{background:linear-gradient(140deg,#2a4f6e,#101f2c)}
  .t3{background:linear-gradient(140deg,#4e3f74,#1b1730)}
  .t4{background:linear-gradient(140deg,#6b4a3a,#241a16)}
  .pane .row{display:flex;align-items:center;justify-content:space-between;gap:6px;padding:5px 0;font:11px/1.2 var(--mono);color:var(--faint)}
  .pane .row span:last-child{color:var(--dim)}
  .pane .kb{height:4px;border-radius:3px;background:rgba(255,255,255,.08);margin:8px 0 2px;overflow:hidden}
  .pane .kb i{display:block;height:100%;width:66%;background:linear-gradient(90deg,var(--g1),var(--g3));border-radius:3px}
  .stage-wrap{position:relative;background:#050a09;display:flex}
  #stage{display:block;width:100%;aspect-ratio:16/9;height:auto}

  .transport{
    display:flex;align-items:center;gap:10px;padding:8px 12px;
    border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);background:rgba(255,255,255,.02);
  }
  .tbtn{
    display:grid;place-items:center;width:28px;height:28px;border-radius:7px;cursor:pointer;
    border:1px solid rgba(102,216,184,.32);background:rgba(102,216,184,.12);color:#b8f2df;
    transition:.2s;
  }
  .tbtn:hover{background:rgba(102,216,184,.22)}
  .tbtn svg{width:12px;height:12px}
  .tcode{font:500 11.5px/1 var(--mono);color:#cfeee2;letter-spacing:.04em;white-space:nowrap}
  .tcode.dim{color:rgba(233,241,239,.3)}
  .transport .sp{flex:1}
  .transport .chip{
    font:500 10px/1 var(--mono);letter-spacing:.05em;color:var(--faint);
    border:1px solid var(--line-soft);border-radius:5px;padding:4px 6px;
  }

  .timeline{display:grid;grid-template-columns:78px minmax(0,1fr);background:#080d0c;font:10.5px/1 var(--mono)}
  .tl-headcol{border-right:1px solid var(--line-soft);padding-bottom:6px}
  .tl-head{
    height:30px;display:flex;align-items:center;gap:6px;padding:0 8px;
    color:rgba(233,241,239,.45);border-bottom:1px solid rgba(255,255,255,.03);
  }
  .tl-head .d{width:5px;height:5px;border-radius:50%}
  .d.page{background:#c07f2e}.d.video{background:#5385bd}.d.audio{background:#3f9a90}.d.cap{background:#7c8797}
  .tl-body{min-width:0;position:relative}
  .tl-ruler{
    height:22px;display:flex;justify-content:space-between;align-items:center;padding:0 6px;
    border-bottom:1px solid var(--line-soft);color:rgba(233,241,239,.28);font-size:9.5px;
    background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.09) 0 1px,transparent 1px 34px);
    background-position:bottom;
  }
  .tl-lanes{position:relative;padding:6px 0}
  .lane{position:relative;height:30px;padding:0;border-bottom:1px solid rgba(255,255,255,.025)}
  .clip{
    position:absolute;top:4px;height:22px;border-radius:4px;display:flex;align-items:center;padding:0 7px;
    font-size:9.5px;letter-spacing:.02em;color:rgba(255,255,255,.86);
    overflow:hidden;white-space:nowrap;text-overflow:ellipsis;
    border:1px solid rgba(255,255,255,.1);
  }
  .clip.page{background:linear-gradient(180deg,rgba(192,127,46,.62),rgba(140,88,28,.55))}
  .clip.video{background:linear-gradient(180deg,rgba(83,133,189,.58),rgba(52,88,132,.52))}
  .clip.audio{background:linear-gradient(180deg,rgba(63,154,144,.6),rgba(30,106,100,.55));padding:0}  .clip.cap{background:linear-gradient(180deg,rgba(124,135,151,.5),rgba(80,90,104,.46))}
  .clip .wave{position:absolute;inset:0;display:flex;align-items:center;gap:1.5px;padding:0 5px;opacity:.85}
  .clip .wave i{flex:1;min-width:1px;background:rgba(200,255,246,.6);border-radius:1px}
  .playhead{position:absolute;top:0;bottom:0;left:0;width:1px;background:#fff;box-shadow:0 0 10px rgba(255,255,255,.7);will-change:left}
  .playhead i{
    position:absolute;top:-1px;left:-4px;width:9px;height:9px;border-radius:2px;background:#fff;
    transform:rotate(45deg);
  }
  .tl-lanes{cursor:pointer}

  /* ── marquee ─────────────────────────────────────────── */
  .strip{
    border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);
    background:linear-gradient(90deg,rgba(94,203,146,.05),rgba(127,211,228,.05));
    overflow:hidden;padding:16px 0;
    -webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
    mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
  }
  .strip-in{display:flex;width:max-content;animation:slide 34s linear infinite}
  .strip-in span{
    display:inline-flex;align-items:center;gap:22px;padding-right:22px;
    font:500 12.5px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:rgba(233,241,239,.5);
    white-space:nowrap;
  }
  .strip-in span::after{content:"";width:5px;height:5px;border-radius:50%;background:rgba(126,224,168,.6)}
  @keyframes slide{to{transform:translateX(-50%)}}

  /* ── handoff section ─────────────────────────────────── */
  .duo{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:52px}
  .card{
    position:relative;border:1px solid var(--line);border-radius:var(--r);
    background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.018));
    padding:24px;overflow:hidden;transition:border-color .35s,transform .35s;
  }
  .card:hover{border-color:rgba(126,224,168,.28);transform:translateY(-3px)}
  .card h3{margin:2px 0 8px;font-size:1.15rem;letter-spacing:-.01em}
  .card p{margin:0;color:var(--dim);font-size:14.5px;line-height:1.75}
  .card .n{
    font:600 11px/1 var(--mono);letter-spacing:.14em;color:rgba(126,224,168,.85);
    display:inline-block;margin-bottom:14px;
  }
  .mock{
    margin-top:20px;border:1px solid var(--line-soft);border-radius:12px;
    background:rgba(4,10,9,.7);padding:14px;min-height:168px;position:relative;overflow:hidden;
  }
  .bubble{
    max-width:88%;padding:9px 12px;border-radius:12px;font-size:12.5px;line-height:1.6;margin-bottom:9px;
    background:rgba(255,255,255,.055);border:1px solid var(--line-soft);color:var(--dim);
  }
  .bubble.me{margin-left:auto;background:rgba(102,216,184,.13);border-color:rgba(102,216,184,.28);color:#d5f7ec}
  .bubble code{font:12px/1 var(--mono);color:#a9eddb}
  .typing{display:inline-flex;gap:3px;vertical-align:middle}
  .typing i{width:4px;height:4px;border-radius:50%;background:rgba(201,246,226,.7);animation:blink 1.2s infinite}
  .typing i:nth-child(2){animation-delay:.18s}.typing i:nth-child(3){animation-delay:.36s}
  @keyframes blink{0%,60%,100%{opacity:.25}30%{opacity:1}}

  .frame-mock{
    position:absolute;inset:14px;border-radius:8px;overflow:hidden;
    background:linear-gradient(150deg,#123a33,#0a1a1a 60%,#0d2622);
    border:1px solid rgba(126,224,168,.2);
  }
  .fm-moon{
    position:absolute;right:14%;top:16%;width:46px;height:46px;border-radius:50%;
    background:radial-gradient(circle at 38% 34%,#ffffff,#cdf6e6 55%,rgba(126,224,168,.25));
    box-shadow:0 0 34px rgba(126,224,168,.5);
  }
  .fm-h{
    position:absolute;left:18%;bottom:32%;width:34%;height:9px;border-radius:3px;
    background:linear-gradient(90deg,rgba(233,255,247,.85),rgba(233,255,247,.35));
  }
  .fm-s{
    position:absolute;left:18%;bottom:23%;width:22%;height:6px;border-radius:3px;
    background:rgba(180,240,222,.32);
  }
  .sel{position:absolute;left:16%;top:54%;width:40%;height:30%;border:1px solid #7fd3e4;box-shadow:0 0 0 1px rgba(127,211,228,.2),0 0 24px rgba(127,211,228,.25)}
  .sel i{position:absolute;width:5px;height:5px;background:#eafcff;border:1px solid #7fd3e4}
  .sel i:nth-child(1){left:-3px;top:-3px}.sel i:nth-child(2){right:-3px;top:-3px}
  .sel i:nth-child(3){left:-3px;bottom:-3px}.sel i:nth-child(4){right:-3px;bottom:-3px}
  .cursor{
    position:absolute;width:18px;height:18px;left:26%;top:58%;
    animation:drift 7s ease-in-out infinite;filter:drop-shadow(0 0 8px rgba(140,240,220,.55));
  }
  .cursor svg{display:block;filter:drop-shadow(0 2px 6px rgba(0,0,0,.7))}
  @keyframes drift{
    0%,100%{transform:translate(0,0)}
    30%{transform:translate(86px,44px)}
    60%{transform:translate(40px,74px)}
    80%{transform:translate(104px,86px)}
  }
  .prop{
    position:absolute;right:10px;bottom:10px;font:10px/1.5 var(--mono);color:rgba(233,241,239,.55);
    background:rgba(0,0,0,.55);border:1px solid var(--line-soft);border-radius:6px;padding:5px 7px;
  }
  .prop b{color:#a9eddb;font-weight:500}

  .bridge{
    margin:20px auto 0;display:flex;align-items:center;justify-content:center;gap:14px;
    font:500 12px/1 var(--mono);letter-spacing:.08em;color:var(--faint);
  }
  .bridge .ln{height:1px;flex:1;max-width:220px;background:linear-gradient(90deg,transparent,var(--line),transparent)}
  .bridge b{color:#b8f2df;font-weight:500}

  /* ── code section ────────────────────────────────────── */
  .split{display:grid;grid-template-columns:1.02fr .98fr;gap:44px;align-items:center;margin-top:48px}
  .code-card{
    border:1px solid var(--line);border-radius:16px;overflow:hidden;
    background:linear-gradient(180deg,#0c1413,#080e0d);
    box-shadow:0 30px 70px -40px rgba(0,0,0,.9);
  }
  .code-head{
    display:flex;align-items:center;gap:8px;padding:10px 14px;border-bottom:1px solid var(--line-soft);
    font:500 11px/1 var(--mono);color:var(--faint);letter-spacing:.04em;
  }
  .code-head .fname{color:var(--dim)}
  .code-head .sp{flex:1}
  pre{margin:0;padding:18px 16px;overflow:auto;font:12.5px/1.85 var(--mono);color:#c7ded6;tab-size:2}
  pre::-webkit-scrollbar{height:6px}
  pre::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:3px}
  .k{color:#7fd3e4}.s{color:#9ee6b4}.c{color:rgba(233,241,239,.3)}.p{color:#e8c07d}.t{color:#d7b6f0}
  .num{color:#e8c07d}

  .scrub-card{
    border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#080e0d;
    box-shadow:0 30px 70px -44px rgba(0,0,0,.9);
  }
  #scrub{display:block;width:100%;aspect-ratio:16/9;height:auto;background:#050a09}
  .scrub-bar{display:flex;align-items:center;gap:12px;padding:12px 14px;border-top:1px solid var(--line-soft)}
  input[type=range]{
    -webkit-appearance:none;appearance:none;flex:1;height:4px;border-radius:3px;
    background:linear-gradient(90deg,var(--g2) 0%,rgba(255,255,255,.12) 0%);
    outline:none;cursor:pointer;
  }
  input[type=range]::-webkit-slider-thumb{
    -webkit-appearance:none;width:14px;height:14px;border-radius:50%;
    background:#eafcff;border:2px solid var(--g2);box-shadow:0 0 14px rgba(102,216,184,.8);cursor:grab;
  }
  input[type=range]::-moz-range-thumb{width:12px;height:12px;border-radius:50%;background:#eafcff;border:2px solid var(--g2)}
  .scrub-val{font:500 11.5px/1 var(--mono);color:#b8f2df;min-width:78px;text-align:right}

  .kind-list{margin:30px 0 0;padding:0;list-style:none;display:grid;gap:14px}
  .kind-list li{display:flex;gap:12px;align-items:flex-start;color:var(--dim);font-size:14.5px;line-height:1.7}
  .kind-list .tk{
    flex:none;width:18px;height:18px;border-radius:50%;margin-top:3px;
    display:grid;place-items:center;border:1px solid rgba(126,224,168,.4);background:rgba(102,216,184,.12);
  }
  .kind-list .tk svg{width:9px;height:9px;color:#b8f2df}
  .kind-list b{color:var(--text);font-weight:600}

  .tree{
    margin-top:30px;border:1px solid var(--line-soft);border-radius:12px;overflow:hidden;
    background:rgba(4,10,9,.6);
  }
  .tree-head{
    padding:9px 14px;border-bottom:1px solid var(--line-soft);
    font:500 11px/1 var(--mono);letter-spacing:.06em;color:rgba(233,241,239,.4);
    display:flex;align-items:center;gap:8px;
  }
  .tree-head::before{content:"";width:6px;height:6px;border-radius:2px;background:rgba(126,224,168,.6)}
  .tree ul{list-style:none;margin:0;padding:10px 14px 12px}
  .tree li{
    display:flex;align-items:center;gap:9px;padding:5px 0;
    font:12.5px/1.5 var(--mono);color:var(--dim);
  }
  .tree li em{
    margin-left:auto;font-style:normal;font-size:11px;color:rgba(233,241,239,.3);letter-spacing:.02em;
  }
  .tree .ic{
    width:9px;height:11px;border-radius:2px;border:1px solid rgba(126,224,168,.45);
    background:rgba(126,224,168,.12);flex:none;
  }
  .tree .ic.f{width:12px;border-radius:2px 3px 3px 3px;border-color:rgba(127,211,228,.5);background:rgba(127,211,228,.14)}

  /* ── powers grid ─────────────────────────────────────── */
  .grid6{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:50px}
  .p-card{
    position:relative;border:1px solid var(--line);border-radius:16px;padding:24px 22px;
    background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.012));
    transition:border-color .35s,transform .35s,background .35s;overflow:hidden;
  }
  .p-card::before{
    content:"";position:absolute;inset:0;opacity:0;transition:opacity .4s;
    background:radial-gradient(320px 180px at 20% 0%,rgba(102,216,184,.14),transparent 70%);
  }
  .p-card:hover{transform:translateY(-4px);border-color:rgba(126,224,168,.26)}
  .p-card:hover::before{opacity:1}
  .p-ico{
    position:relative;width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
    border:1px solid rgba(126,224,168,.24);background:linear-gradient(160deg,rgba(102,216,184,.16),rgba(127,211,228,.06));
    color:#9fe9d4;margin-bottom:16px;
  }
  .p-ico svg{width:19px;height:19px}
  .p-card h3{position:relative;margin:0 0 8px;font-size:15.5px;font-weight:650;letter-spacing:-.005em}
  .p-card p{position:relative;margin:0;color:var(--dim);font-size:13.8px;line-height:1.72}
  .p-link{
    position:relative;display:inline-flex;align-items:center;gap:5px;margin-top:12px;
    font:500 11.5px/1 var(--mono);letter-spacing:.03em;color:#9fe9d4;
    border-bottom:1px solid rgba(126,224,168,.32);transition:color .25s,border-color .25s;
  }
  .p-link:hover{color:#d5f7ec;border-color:rgba(126,224,168,.7)}

  /* ── render / export ─────────────────────────────────── */
  .render-band{position:relative;overflow:hidden}
  .render-band::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background:radial-gradient(700px 340px at 50% 0%,rgba(94,203,146,.14),transparent 70%);
  }
  .chips{display:flex;flex-wrap:wrap;gap:9px;margin-top:34px}
  .chips span{
    font:500 12.5px/1 var(--mono);letter-spacing:.03em;color:var(--dim);
    padding:9px 13px;border-radius:9px;border:1px solid var(--line);background:rgba(255,255,255,.03);
    transition:.25s;
  }
  .chips span:hover{color:#d5f7ec;border-color:rgba(126,224,168,.35);background:rgba(102,216,184,.08);transform:translateY(-2px)}
  .facts{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:44px}
  .fact{padding:22px 20px;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.025)}
  .fact .v{font-size:clamp(1.5rem,2.4vw,2rem);font-weight:700;letter-spacing:-.02em;line-height:1.1}
  .fact .k{margin-top:8px;font:500 11px/1.4 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--faint)}

  /* ── start ───────────────────────────────────────────── */
  .start{
    position:relative;border:1px solid var(--line);border-radius:26px;overflow:hidden;
    background:linear-gradient(150deg,rgba(94,203,146,.11),rgba(10,16,15,.9) 42%,rgba(127,211,228,.1));
    padding:clamp(30px,5vw,60px);
  }
  .start::before{
    content:"AiCut";position:absolute;right:3.5%;bottom:2%;z-index:0;
    font:800 clamp(54px,7.2vw,116px)/0.82 var(--sans);letter-spacing:-.045em;
    color:transparent;-webkit-text-stroke:1px rgba(126,224,168,.13);
    pointer-events:none;user-select:none;
  }
  .start::after{
    content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
    background:radial-gradient(circle,rgba(127,211,228,.2),transparent 65%);filter:blur(30px);pointer-events:none;
  }
  .start h2{margin-top:12px;max-width:20ch;position:relative;z-index:1}
  .start .lead,.start .cmd-list{position:relative;z-index:1}
  .cmd-list{display:grid;gap:12px;margin-top:30px;max-width:640px}
  .cmd{
    display:flex;align-items:center;gap:12px;padding:13px 14px;border-radius:12px;
    border:1px solid var(--line);background:rgba(3,8,7,.66);position:relative;
  }
  .cmd .lbl{font:500 10px/1 var(--mono);letter-spacing:.12em;color:rgba(233,241,239,.34);width:58px;flex:none;text-transform:uppercase}
  .cmd code{font:12.5px/1.5 var(--mono);color:#cfeee2;flex:1;min-width:0;white-space:pre-wrap;overflow-wrap:break-word}
  .cmd code .cmd-url{white-space:nowrap}
  @media (max-width:640px){ .cmd code .cmd-url{white-space:normal} }
  .cmd code::-webkit-scrollbar{display:none}
  .copy{
    flex:none;border:1px solid rgba(126,224,168,.28);background:rgba(102,216,184,.1);color:#b8f2df;
    border-radius:7px;padding:6px 10px;font:500 11px/1 var(--mono);cursor:pointer;transition:.2s;
  }
  .copy:hover{background:rgba(102,216,184,.2)}
  .start-note{
    position:relative;z-index:1;max-width:640px;margin:16px 0 0;padding:11px 14px;border-radius:11px;
    border:1px solid var(--line);background:rgba(3,8,7,.5);
    font:13px/1.75 var(--sans);color:rgba(233,241,239,.62);
  }
  .start-note b{color:rgba(233,241,239,.86);font-weight:600}
  .start-note code{font:12px/1.5 var(--mono);color:#cfeee2;background:rgba(102,216,184,.1);padding:1px 5px;border-radius:5px}

  /* ── download + agent steps ──────────────────────────── */
  .dl{
    display:flex;align-items:center;gap:14px;flex-wrap:wrap;
    margin-top:30px;padding:16px 18px;border-radius:14px;position:relative;z-index:1;
    border:1px solid rgba(102,216,184,.28);
    background:linear-gradient(100deg,rgba(102,216,184,.13),rgba(3,8,7,.66) 62%);
  }
  .dl-ico{
    width:36px;height:36px;flex:none;border-radius:10px;display:grid;place-items:center;
    background:rgba(102,216,184,.14);color:#b8f2df;border:1px solid rgba(126,224,168,.3);
  }
  .dl-txt{display:flex;flex-direction:column;gap:3px;min-width:0}
  .dl-txt b{font-size:14.5px;font-weight:600}
  .dl-txt span{font:11.5px/1.5 var(--mono);color:var(--faint)}
  .dl .btn{margin-left:auto;padding:11px 18px;font-size:14px}
  /* 备用网盘入口（首屏与下载块共用） */
  .alt-dl{
    flex:none;display:inline-flex;align-items:center;gap:5px;white-space:nowrap;
    padding:10px 12px;border-radius:10px;
    font:500 12.5px/1 var(--mono);letter-spacing:.01em;color:#9fe9d4;
    border:1px dashed rgba(126,224,168,.34);background:rgba(102,216,184,.05);
    transition:color .22s,border-color .22s,background .22s;
  }
  .alt-dl:hover{color:#d5f7ec;border-color:rgba(126,224,168,.72);background:rgba(102,216,184,.14)}
  .alt-dl svg{flex:none;opacity:.75}
  @media (max-width:640px){
    /* 窄屏两个按钮换到第二行时，跟文字左边对齐，不要被 margin-left:auto 顶到右边 */
    .dl .btn{margin-left:0}
  }
  .steps{position:relative;z-index:1;margin-top:34px;padding-top:26px;border-top:1px solid var(--line-soft);max-width:640px}
  .steps h3{margin:0;font-size:15.5px;font-weight:600;letter-spacing:-.01em}
  .steps .sub{margin:5px 0 16px;font:11.5px/1.6 var(--mono);color:var(--faint)}
  .steps ol{margin:0;padding-left:20px;display:grid;gap:11px;color:var(--dim);font-size:14px;line-height:1.75}
  .steps ol li::marker{color:#8fe0d0;font:600 12px/1 var(--mono)}
  .steps ol b{color:var(--text);font-weight:600}
  .steps .note{margin:15px 0 0;font-size:13px;color:var(--faint);line-height:1.75}
  .steps .note code{font-size:12px}
  .copy.done{background:rgba(102,216,184,.32);color:#04241c}

  /* ── footer ──────────────────────────────────────────── */
  footer{border-top:1px solid var(--line-soft);padding:44px 0 56px;background:#060a09}
  .foot{display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between}
  .foot .left{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--faint)}
  .foot .left .mark{width:20px;height:20px;border-radius:6px}
  .foot nav{display:flex;gap:22px;font-size:13.5px;color:var(--dim);flex-wrap:wrap}
  .foot nav a:hover{color:var(--text)}

  .toast{
    position:fixed;left:50%;bottom:30px;transform:translate(-50%,20px);z-index:90;
    background:rgba(14,24,21,.95);border:1px solid rgba(126,224,168,.35);color:#d5f7ec;
    padding:11px 18px;border-radius:999px;font-size:13px;opacity:0;pointer-events:none;
    transition:opacity .3s,transform .3s;backdrop-filter:blur(10px);
  }
  .toast.show{opacity:1;transform:translate(-50%,0)}

  /* ── templates ───────────────────────────────────────── */
  .tpl-bar{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:36px}
  .tpl-chips{display:flex;flex-wrap:wrap;gap:8px}
  .tpl-chip{
    display:inline-flex;align-items:center;gap:8px;cursor:pointer;
    padding:9px 14px;border-radius:999px;border:1px solid var(--line);
    background:rgba(255,255,255,.03);color:var(--dim);font:500 13px/1 var(--sans);
    transition:color .25s,border-color .25s,background .25s,transform .25s,box-shadow .3s;
  }
  .tpl-chip b{font:500 11px/1 var(--mono);letter-spacing:.04em;color:var(--faint);transition:color .25s}
  .tpl-chip:hover{color:var(--text);border-color:rgba(255,255,255,.22);transform:translateY(-1px)}
  .tpl-chip[aria-pressed="true"]{
    color:#04241c;border-color:transparent;
    background:linear-gradient(100deg,var(--g1),var(--g2) 52%,var(--g3));
    box-shadow:0 12px 28px -14px rgba(102,216,184,.7);
  }
  .tpl-chip[aria-pressed="true"] b{color:rgba(4,36,28,.62)}
  .tpl-count{margin-left:auto;font:500 11.5px/1 var(--mono);letter-spacing:.06em;color:var(--faint);white-space:nowrap}

  .tpl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:22px}
  .tpl-card{
    position:relative;display:flex;flex-direction:column;overflow:hidden;cursor:pointer;
    border:1px solid var(--line);border-radius:14px;
    background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.012));
    transition:transform .35s,border-color .35s,box-shadow .35s;
    animation:tplIn .45s cubic-bezier(.2,.7,.2,1) both;
  }
  .tpl-card:hover,.tpl-card:focus-visible{transform:translateY(-4px);border-color:rgba(126,224,168,.3);box-shadow:0 28px 54px -36px rgba(0,0,0,.95);outline:none}
  .tpl-card:focus-visible{box-shadow:0 0 0 2px rgba(126,224,168,.45)}
  @keyframes tplIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

  .tpl-shot{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:#0a100f;border-bottom:1px solid var(--line-soft)}
  .tpl-shot > svg{display:block;width:100%;height:100%}
  .tpl-shot::after{
    content:"";position:absolute;inset:0;pointer-events:none;
    background:linear-gradient(160deg,rgba(255,255,255,.1),transparent 44%);
    opacity:0;transition:opacity .4s;
  }
  .tpl-card:hover .tpl-shot::after{opacity:1}
  .tpl-tags{position:absolute;left:9px;top:9px;z-index:2;display:flex;gap:5px;flex-wrap:wrap}
  .tpl-tag{
    font:500 10px/1 var(--mono);letter-spacing:.05em;padding:4px 6px;border-radius:5px;
    color:rgba(233,241,239,.8);background:rgba(6,12,11,.7);
    border:1px solid rgba(255,255,255,.14);backdrop-filter:blur(6px);
  }
  .tpl-tag.on{color:#bff5e3;border-color:rgba(102,216,184,.4);background:rgba(9,32,27,.72)}
  .tpl-dur{
    position:absolute;right:9px;bottom:9px;z-index:2;font:500 10px/1 var(--mono);letter-spacing:.03em;
    color:rgba(233,241,239,.74);background:rgba(6,12,11,.7);border:1px solid rgba(255,255,255,.12);
    border-radius:5px;padding:4px 6px;backdrop-filter:blur(6px);
    /* 英文家族名比中文长得多，卡片窄的时候截断而不是顶出画面 */
    max-width:calc(100% - 18px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  }
  .tpl-body{display:flex;flex-direction:column;gap:6px;padding:14px 15px 15px}
  .tpl-body h3{display:flex;align-items:baseline;gap:8px;margin:0;font-size:14.5px;font-weight:650;letter-spacing:-.005em}
  .tpl-body h3 em{font-style:normal;font:500 10.5px/1 var(--mono);color:var(--faint)}  .tpl-body p{
    margin:0;color:var(--dim);font-size:12.8px;line-height:1.65;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .tpl-use{font:500 10.5px/1.4 var(--mono);letter-spacing:.04em;color:rgba(233,241,239,.3);margin-top:2px}
  .tpl-empty{
    grid-column:1/-1;border:1px dashed var(--line);border-radius:14px;
    padding:46px 20px;text-align:center;color:var(--faint);font-size:13.5px;
  }
  .tpl-foot{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin-top:24px;font:11.5px/1.7 var(--mono);color:var(--faint)}
  .tpl-foot a{color:#9fe9d4;border-bottom:1px solid rgba(126,224,168,.32);transition:border-color .25s,color .25s}
  .tpl-foot a:hover{color:#d5f7ec;border-color:rgba(126,224,168,.7)}
  .tpl-foot .src{margin-left:auto;display:inline-flex;align-items:center;gap:7px;color:rgba(233,241,239,.44)}
  .tpl-foot .src i{width:5px;height:5px;border-radius:50%;background:var(--g2);box-shadow:0 0 8px var(--g2)}
  .tpl-foot .src.warn i{background:#e8b45a;box-shadow:0 0 8px #e8b45a}

  /* template detail */
  .tpl-dlg{
    width:min(760px,92vw);max-height:88vh;padding:0;margin:auto;overflow:auto;
    border:1px solid rgba(255,255,255,.14);border-radius:18px;background:#0a110f;color:var(--text);
    box-shadow:0 60px 140px -40px rgba(0,0,0,.95);
  }
  .tpl-dlg::backdrop{background:rgba(3,7,6,.74);backdrop-filter:blur(6px)}
  .tpl-dlg[open]{animation:dlgIn .3s cubic-bezier(.2,.7,.2,1) both}
  @keyframes dlgIn{from{opacity:0;transform:translateY(12px) scale(.99)}to{opacity:1;transform:none}}
  .dlg-x{
    position:absolute;right:12px;top:12px;z-index:3;display:grid;place-items:center;
    width:30px;height:30px;border-radius:8px;cursor:pointer;color:rgba(233,241,239,.8);
    border:1px solid rgba(255,255,255,.16);background:rgba(6,12,11,.62);backdrop-filter:blur(6px);
    transition:.2s;
  }
  .dlg-x:hover{background:rgba(255,255,255,.15);color:#fff}
  .dlg-x:focus{outline:none}
  .dlg-x:focus-visible{outline:2px solid rgba(126,224,168,.65);outline-offset:2px}
  .dlg-x svg{width:13px;height:13px}
  .dlg-shot{display:block;aspect-ratio:16/9;overflow:hidden;background:#070c0b;border-bottom:1px solid var(--line-soft)}
  .dlg-shot svg{display:block;width:100%;height:100%}
  .dlg-in{padding:20px 22px 22px}
  .dlg-in h3{margin:6px 0 8px;font-size:20px;letter-spacing:-.015em;font-weight:700}
  .dlg-in .lead{font-size:14px;line-height:1.75;max-width:56ch}
  .dlg-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
  .dlg-meta span{
    font:500 11px/1 var(--mono);letter-spacing:.03em;color:rgba(233,241,239,.6);
    border:1px solid var(--line-soft);background:rgba(255,255,255,.025);border-radius:6px;padding:7px 9px;
  }
  .dlg-meta span.on{color:#bff5e3;border-color:rgba(102,216,184,.32);background:rgba(102,216,184,.08)}
  .dlg-note{margin:14px 0 0;font:11.5px/1.7 var(--mono);color:var(--faint)}
  .dlg-acts{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
  .dlg-acts .btn{padding:11px 18px;font-size:14px}

  /* ── 下载弹层：选系统 ── */
  .dl-dlg{width:min(520px,92vw)}
  .dl-dlg:focus{outline:none}
  .dl-dlg .dlg-in{padding:22px 22px 18px}
  .dl-dlg .dlg-in h3{margin:6px 0 8px;font-size:21px;letter-spacing:-.02em}
  .dl-dlg-sub{margin:0 0 18px;color:var(--dim);font-size:13.4px;line-height:1.72;max-width:40ch}

  .os-list{display:grid;gap:9px}
  .os-row{
    display:flex;align-items:center;gap:12px;
    padding:13px 14px;border-radius:12px;border:1px solid var(--line);
    background:rgba(255,255,255,.035);color:inherit;text-align:left;
    transition:background .22s,border-color .22s;
  }
  a.os-row{cursor:pointer}
  .os-row:hover{background:rgba(255,255,255,.07);border-color:rgba(126,224,168,.34)}
  .os-row.os-main{
    border-color:rgba(126,224,168,.3);
    background:linear-gradient(100deg,rgba(102,216,184,.13),rgba(255,255,255,.02) 70%);
  }
  .os-row.os-main:hover{border-color:rgba(126,224,168,.6);background:linear-gradient(100deg,rgba(102,216,184,.2),rgba(255,255,255,.04) 70%)}
  .os-ico{
    width:34px;height:34px;flex:none;border-radius:9px;display:grid;place-items:center;
    color:#b8f2df;background:rgba(102,216,184,.1);border:1px solid rgba(126,224,168,.24);
  }
  .os-tx{display:flex;flex-direction:column;gap:2px;min-width:0}
  .os-tx b{display:flex;align-items:center;gap:6px;font-size:14px;font-weight:600}
  .os-tx b em{
    font:500 9.5px/1 var(--mono);font-style:normal;letter-spacing:.06em;
    color:#8bf0d4;background:rgba(102,216,184,.1);
    border:1px solid rgba(126,224,168,.34);border-radius:5px;padding:3px 5px;
  }
  .os-tx i{font:12px/1.55 var(--mono);font-style:normal;color:rgba(233,241,239,.52)}
  .os-go,.os-row .copy{
    margin-left:auto;flex:none;display:inline-flex;align-items:center;gap:5px;
    font:600 13px/1 var(--sans);color:#a6f0d9;
  }
  .os-row .copy{
    font:500 11px/1 var(--mono);padding:6px 10px;border-radius:7px;
    border:1px solid rgba(126,224,168,.28);background:rgba(102,216,184,.1);color:#b8f2df;
  }
  .os-row .copy:hover{background:rgba(102,216,184,.2)}
  .dl-dlg-foot{
    display:flex;flex-wrap:wrap;align-items:center;gap:5px 8px;
    margin:16px 0 0;padding-top:14px;border-top:1px solid var(--line-soft);
    font:11.5px/1.7 var(--mono);color:var(--faint);
  }
  .dl-dlg-foot a{color:#9fe9d4;border-bottom:1px solid rgba(126,224,168,.32);transition:color .25s,border-color .25s}
  .dl-dlg-foot a:hover{color:#d5f7ec;border-color:rgba(126,224,168,.72)}
  @media (max-width:640px){
    .dl-dlg .dlg-in{padding:18px 16px 16px}
    .os-row{padding:12px 12px;gap:10px}
    .os-tx i{font-size:11px}
  }

  @media (max-width:1000px){
    .tpl-grid{grid-template-columns:1fr 1fr}
    .studio-main{grid-template-columns:minmax(0,1fr)}
    .pane{display:none}
    .split{grid-template-columns:1fr;gap:28px}
    .grid6{grid-template-columns:1fr 1fr}
    .facts{grid-template-columns:1fr 1fr}
    .duo{grid-template-columns:1fr}
    .nav-links{display:none}
    .nav-cta{margin-left:auto}
    .stitle{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
  }
  @media (max-width:640px){
    section{padding:76px 0}
    .tpl-grid{grid-template-columns:1fr;gap:14px}
    .tpl-count{display:none}
    .tpl-foot .src{margin-left:0}
    .dlg-in{padding:16px 16px 18px}
    .dlg-acts .btn{flex:1 1 auto;justify-content:center}
    .hero{padding-top:126px}
    .grid6{grid-template-columns:1fr}
    .timeline{grid-template-columns:56px minmax(0,1fr)}
    .tl-head{padding:0 5px;font-size:9px}
    .cta-row .hint{display:none}
    .start{border-radius:20px}
    .bridge{display:none}
    .studio-top .right{display:none}
    .transport .chip{display:none}
    .transport .sp{display:none}
  }
  @media (prefers-reduced-motion:reduce){
    *{animation:none!important;transition-duration:.01ms!important}
    html.js [data-reveal]{opacity:1;transform:none}
    html{scroll-behavior:auto}
  }

  /* ── back to AutoAiAi ─────────────────────────────── */
  .back-home{display:inline-flex;align-items:center;gap:5px;flex:none;margin-left:8px;
    padding:6px 10px 6px 9px;border-radius:9px;text-decoration:none;
    font-size:12px;line-height:1.2;letter-spacing:.03em;
    color:var(--dim,var(--mut,#98a2b4));border:1px solid var(--line,rgba(255,255,255,.1));
    background:rgba(255,255,255,.03);transition:color .25s,border-color .25s,background .25s}
  .back-home:hover{color:var(--text,var(--tx,#fff));border-color:rgba(255,255,255,.24);background:rgba(255,255,255,.07)}
  .back-home svg{width:11px;height:11px;flex:none}
  @media(max-width:860px){.back-home span{display:none}.back-home{margin-left:4px;padding:7px 8px}}

  /* ══ 风格库 · 独立页 ═══════════════════════════════════ */

  /* 导航里的「风格库」不再特殊处理：和 Studio / 怎么做 / 能力 / 交付 完全一致，
     只保留链接本身的悬停下划线。data-nav 仅用于小屏判断留哪一个入口。 */

  /* 独立页页头 */
  .page-head{padding:134px 0 4px;position:relative}
  .page-head h1{
    font-size:clamp(2.05rem,4vw,3.1rem);line-height:1.1;letter-spacing:-.03em;
    margin:14px 0 0;font-weight:700;max-width:22ch;
  }
  .page-head .lead{margin-top:20px}
  .page-head .tpl-bar{margin-top:34px}

  /* 筛选条里的搜索 */
  .tpl-search{
    margin-left:auto;display:flex;align-items:center;gap:8px;min-width:186px;
    padding:9px 14px;border-radius:999px;border:1px solid var(--line);
    background:rgba(255,255,255,.03);transition:border-color .25s,background .25s;
  }
  .tpl-search svg{width:13px;height:13px;flex:none;color:var(--faint)}
  .tpl-search input{
    background:none;border:0;outline:none;width:100%;color:var(--text);
    font:400 13px/1 var(--sans);letter-spacing:.01em;
  }
  .tpl-search input::placeholder{color:var(--faint)}
  .tpl-search:focus-within{border-color:rgba(126,224,168,.45);background:rgba(255,255,255,.055)}
  /* 英文 placeholder 比中文长，搜索框放宽一点才不会被截 */
  html[data-lang="en"] .tpl-search{min-width:250px}

  /* 首页的「去风格库」出口 */
  .tpl-more{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:30px}
  .tpl-more .src{
    display:inline-flex;align-items:center;gap:7px;
    font:11.5px/1.7 var(--mono);color:rgba(233,241,239,.44);
  }
  .tpl-more .src i{width:5px;height:5px;border-radius:50%;background:var(--g2);box-shadow:0 0 8px var(--g2)}
  .tpl-more .src.warn i{background:#e8b45a;box-shadow:0 0 8px #e8b45a}
  .tpl-more .btn{padding:11px 20px;font-size:14px}
  .tpl-more .tpl-link{
    font:500 12px/1 var(--mono);letter-spacing:.02em;color:#9fe9d4;
    border-bottom:1px solid rgba(126,224,168,.3);padding-bottom:3px;
    transition:color .25s,border-color .25s;
  }
  .tpl-more .tpl-link:hover{color:#d5f7ec;border-color:rgba(126,224,168,.72)}

  @media (max-width:1000px){
    /* 小屏只留下「风格库」这一个入口（普通文字链接，不加任何标注） */
    .nav-in{gap:12px;padding:11px 16px}
    .nav-links{display:flex;gap:0;margin-left:auto}
    .nav-links a:not([data-nav="style"]){display:none}
    .nav-cta{margin-left:10px}
  }
  @media (max-width:640px){
    .page-head{padding:118px 0 0}
    /* 小屏把标题压一档，避免「每个都已经画得出画面」拆出孤字 */
    .page-head h1{font-size:clamp(1.5rem,7.4vw,1.95rem);letter-spacing:-.025em}
    .tpl-search{margin-left:0;width:100%}
    .tpl-more .btn{flex:1 1 auto;justify-content:center}
  }

  /* ══ 风格库（软件里的 86 个归档风格）════════════════════ */

  /* tab + 搜索同一行 */
  .lib-bar{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:28px}
  .lib-tabs{
    display:inline-flex;gap:4px;padding:4px;border-radius:13px;
    border:1px solid var(--line);background:rgba(255,255,255,.028);
  }
  .lib-tab{
    display:inline-flex;align-items:center;gap:8px;border:0;cursor:pointer;
    padding:9px 15px;border-radius:9px;background:none;color:var(--dim);
    font:600 13.5px/1 var(--sans);letter-spacing:.01em;transition:color .22s,background .22s,box-shadow .22s;
  }
  .lib-tab b{
    font:500 10.5px/1 var(--mono);letter-spacing:.04em;padding:3px 5px;border-radius:4px;
    color:var(--faint);background:rgba(255,255,255,.06);
  }
  .lib-tab:hover{color:var(--text);background:rgba(255,255,255,.05)}
  .lib-tab[aria-selected="true"]{
    color:#06231b;background:linear-gradient(100deg,var(--g1),var(--g2) 58%,var(--g3));
    box-shadow:0 8px 22px -14px rgba(102,216,184,.9);
  }
  .lib-tab[aria-selected="true"] b{color:rgba(4,36,28,.66);background:rgba(4,36,28,.1)}
  .lib-tab:focus-visible{outline:2px solid rgba(126,224,168,.6);outline-offset:2px}

  /* 风格卡：独立成类，和首页其他网格互不干扰 */
  .style-grid{grid-template-columns:repeat(4,1fr);gap:14px}
  .style-card{
    position:relative;display:flex;flex-direction:column;overflow:hidden;cursor:pointer;
    border:1px solid var(--line);border-radius:14px;
    background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.012));
    transition:transform .35s,border-color .35s,box-shadow .35s;
    animation:tplIn .45s cubic-bezier(.2,.7,.2,1) both;
  }
  .style-card:hover,.style-card:focus-visible{
    transform:translateY(-4px);border-color:rgba(126,224,168,.3);
    box-shadow:0 28px 54px -36px rgba(0,0,0,.95);outline:none;
  }
  .style-card:focus-visible{box-shadow:0 0 0 2px rgba(126,224,168,.45)}
  .style-shot img{display:block;width:100%;height:100%;object-fit:cover}
  .style-card .tpl-body{padding:11px 13px 13px;gap:5px}
  .style-card .tpl-body h3{font-size:13.5px;font-weight:650;letter-spacing:0}
  .tpl-body p.style-en{
    margin:0;font:500 10px/1.45 var(--mono);letter-spacing:.02em;color:var(--faint);
    display:block;-webkit-line-clamp:unset;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  }
  .style-card:hover .tpl-shot::after{opacity:1}

  /* 风格详情 */
  .dlg-shot img{display:block;width:100%;height:100%;object-fit:cover}
  .style-alt{margin:0 0 2px;font:500 11px/1.5 var(--mono);letter-spacing:.04em;color:var(--faint)}
  .style-dlg .dlg-in h3{margin:4px 0 6px}
  .style-dlg .dlg-note.style-note{
    margin:12px 0 0;font:400 13px/1.7 var(--sans);color:var(--dim);
    border-left:2px solid rgba(102,216,184,.34);padding-left:10px;
  }
  .style-notes{display:grid;gap:14px;margin-top:18px;padding-top:14px;border-top:1px solid var(--line-soft)}
  .style-notes b{display:block;font:600 9.5px/1 var(--mono);letter-spacing:.12em;color:#7fd3c0;margin-bottom:6px}
  .style-notes p{margin:0;color:rgba(233,241,239,.7);font-size:12.4px;line-height:1.75}

  /* ── 风格库 · 怎么用（它不在网页里跑，装在软件里由豆包 / WorkBuddy 调）── */
  .lib-how{
    display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);
    gap:18px 34px;margin:0 0 20px;padding:22px 24px 18px;border-radius:16px;
    border:1px solid rgba(126,224,168,.16);
    background:
      radial-gradient(520px 240px at 4% 0%,rgba(94,203,146,.1),transparent 68%),
      radial-gradient(480px 220px at 96% 100%,rgba(127,211,228,.07),transparent 70%),
      linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.012));
  }
  .lib-how .how-title{
    margin:12px 0 10px;font-size:clamp(1.02rem,1.5vw,1.28rem);line-height:1.35;
    letter-spacing:-.02em;font-weight:700;
  }
  .lib-how .how-title b{font-weight:700;color:#d9f8ee}
  .lib-how .how-lead{margin:0;color:var(--dim);font-size:13.2px;line-height:1.78;max-width:44ch}
  .lib-how .how-lead b{color:#c7f4e6;font-weight:600}

  .how-steps{list-style:none;margin:0;padding:0;display:grid;gap:13px;min-width:0}
  .how-steps li{display:grid;grid-template-columns:22px minmax(0,1fr);gap:9px;align-items:start}
  .how-n{
    display:grid;place-items:center;width:20px;height:20px;border-radius:6px;margin-top:1px;
    font:600 10.5px/1 var(--mono);color:#a9f0da;
    border:1px solid rgba(126,224,168,.3);background:rgba(102,216,184,.12);
  }
  .how-tx b{display:block;font-size:13.2px;font-weight:600;line-height:1.5}
  .how-tx p{margin:5px 0 0;font:11.5px/1.65 var(--mono);color:var(--faint)}
  .how-tx p b{display:inline;font-weight:600;color:rgba(233,241,239,.74)}
  .how-prompt{
    display:flex;align-items:center;gap:8px;margin-top:7px;padding:7px 7px 7px 11px;
    border-radius:9px;border:1px solid rgba(126,224,168,.2);background:rgba(5,13,11,.62);
  }
  .how-prompt code{
    flex:1 1 auto;min-width:0;font-size:12.2px;line-height:1.55;color:#c6f7e7;word-break:break-word;
  }
  .how-foot{
    grid-column:1/-1;display:flex;flex-wrap:wrap;align-items:center;gap:6px 14px;
    margin:0;padding-top:13px;border-top:1px solid var(--line-soft);
    font:11.5px/1.7 var(--mono);color:var(--faint);
  }
  .how-foot a{color:#9fe9d4;border-bottom:1px solid rgba(126,224,168,.32);transition:color .25s,border-color .25s}
  .how-foot a:hover{color:#d5f7ec;border-color:rgba(126,224,168,.7)}

  @media (max-width:1000px){
    .lib-how{grid-template-columns:minmax(0,1fr);gap:16px;padding:20px 18px 16px}
    .lib-how .how-lead{max-width:none}
  }
  @media (max-width:640px){
    .lib-how{padding:18px 15px 14px;border-radius:14px}
    .how-prompt{padding:6px 6px 6px 9px}
    .how-prompt code{font-size:11.4px}
  }

  @media (max-width:1200px){
    .style-grid{grid-template-columns:repeat(3,1fr)}
  }
  @media (max-width:1000px){
    .style-grid{grid-template-columns:repeat(3,1fr)}
  }
  @media (max-width:640px){
    /* 15 个家族在手机上竖着排要占五行，改成一行横滑 */
    .tpl-bar .tpl-chips{
      flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;
      scrollbar-width:none;padding:2px 0 8px;
      -webkit-mask-image:linear-gradient(90deg,#000 92%,transparent);
      mask-image:linear-gradient(90deg,#000 92%,transparent);
    }
    .tpl-bar .tpl-chips::-webkit-scrollbar{display:none}
    .tpl-bar .tpl-chip{flex:none}
    .lib-bar{gap:10px}
    .lib-tabs{width:100%;justify-content:stretch}
    .lib-tab{flex:1 1 0;justify-content:center;padding:9px 10px}
    .style-grid{grid-template-columns:1fr 1fr;gap:10px}
    .style-card .tpl-body{padding:9px 10px 11px}
    .style-card .tpl-body h3{font-size:12.5px}
    .tpl-body p.style-en{font-size:9px}
  }