:root{
  --paper:#f6f2e9;
  --paper2:#efe9dc;
  --ink:#14110c;
  --ink2:#2a241a;
  --muted:#6d6455;
  --dim:#948a78;
  --line:rgba(20,17,12,.12);
  --line2:rgba(20,17,12,.22);
  --amber:#e8a33a;
  --amber2:#f5b74b;
  --green:#1f5c45;
  --red:#c4472f;
  --r:18px;
  --max:1160px;
}
*{box-sizing:border-box;margin:0;padding:0}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Noto Sans CJK SC","Microsoft YaHei",sans-serif;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(700px 420px at 82% -10%,rgba(232,163,58,.16),transparent 65%),
    radial-gradient(520px 340px at 0% 18%,rgba(31,92,69,.06),transparent 60%),
    linear-gradient(180deg,#f8f4ec 0%,#f6f2e9 55%,#f1ebdf 100%);
}
a{color:inherit;text-decoration:none}
em{font-style:normal}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.9em;background:rgba(20,17,12,.06);padding:.12em .4em;border-radius:5px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 26px}

/* nav */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(16px);background:rgba(246,242,233,.82);border-bottom:1px solid var(--line)}
.nav-in{max-width:var(--max);margin:0 auto;padding:13px 26px;display:flex;align-items:center;justify-content:space-between;gap:22px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:15px;letter-spacing:.01em}
.brand .mark{width:30px;height:30px;border-radius:9px;background:var(--ink);color:var(--amber2);display:grid;place-items:center;font-size:14px;font-weight:900;box-shadow:0 4px 12px rgba(20,17,12,.18)}
.brand em{font-style:normal;font-size:10.5px;letter-spacing:.18em;color:var(--dim);font-weight:600;margin-left:3px}
.nav-links{display:flex;gap:24px;font-size:14px;color:var(--muted)}
.nav-links a{position:relative}
.nav-links a:hover{color:var(--ink)}
.nav-links a::after{content:"";position:absolute;left:0;right:100%;bottom:-5px;height:1.5px;background:var(--ink);transition:.2s}
.nav-links a:hover::after{right:0}
.nav-cta{font-size:13.5px;font-weight:700;padding:9px 16px;border-radius:999px;background:var(--ink);color:var(--paper);white-space:nowrap;transition:.2s}
.nav-cta:hover{background:#000;transform:translateY(-1px)}

/* hero */
.hero{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;padding-top:74px;padding-bottom:56px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:11.5px;font-weight:700;letter-spacing:.14em;color:var(--green);border:1px solid rgba(31,92,69,.22);background:rgba(31,92,69,.06);padding:6px 12px;border-radius:999px;margin-bottom:22px}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--green);box-shadow:0 0 0 3px rgba(31,92,69,.12)}
h1{font-size:clamp(34px,4.4vw,58px);line-height:1.14;letter-spacing:-.035em;font-weight:850}
h1 .hl{position:relative;white-space:nowrap}
h1 .hl::after{content:"";position:absolute;left:-2px;right:-2px;bottom:4px;height:12px;background:var(--amber2);z-index:-1;transform:rotate(-1deg)}
.lede{margin-top:22px;font-size:clamp(15px,1.5vw,17.5px);color:var(--muted);max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.btn{display:inline-flex;align-items:center;gap:9px;padding:13px 22px;border-radius:12px;font-weight:750;font-size:15px;border:1px solid transparent;transition:.18s;cursor:pointer}
.btn span{font-size:11.5px;font-weight:650;opacity:.72;letter-spacing:.03em}
.btn-primary{background:var(--amber2);color:var(--ink);box-shadow:0 10px 28px rgba(232,163,58,.26)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 36px rgba(232,163,58,.34)}
.btn-ghost{border-color:var(--line2);color:var(--ink2)}
.btn-ghost:hover{border-color:var(--ink);transform:translateY(-1px)}
.btn-dark{background:var(--ink);color:var(--paper)}
.btn-dark:hover{background:#000;transform:translateY(-1px)}
.hero-meta{display:flex;gap:34px;margin-top:40px;padding-top:22px;border-top:1px solid var(--line)}
.hero-meta div{font-size:12.5px;color:var(--muted)}
.hero-meta b{display:block;font-size:26px;line-height:1.1;color:var(--ink);font-weight:850;letter-spacing:-.03em;margin-bottom:3px}

/* pack art */
.hero-art{position:relative;height:460px;display:grid;place-items:center}
.pack-card{position:absolute;border-radius:14px}
.pack-back{width:300px;height:390px;background:#ded5c3;transform:rotate(-8deg) translate(-16px,10px);box-shadow:0 18px 40px rgba(20,17,12,.08)}
.pack-mid{width:300px;height:390px;background:#c9bda4;transform:rotate(5deg) translate(18px,4px);box-shadow:0 18px 40px rgba(20,17,12,.1)}
.pack-front{width:310px;height:404px;background:var(--ink);color:var(--paper);padding:24px 24px 20px;transform:rotate(-1.5deg);box-shadow:0 30px 70px rgba(20,17,12,.3);display:flex;flex-direction:column;border:1px solid rgba(255,255,255,.08)}
.pack-top{display:flex;justify-content:space-between;font-size:10px;letter-spacing:.2em;color:rgba(246,242,233,.55);font-weight:700}
.pack-title{font-size:34px;line-height:1.14;font-weight:850;letter-spacing:-.03em;margin-top:24px;color:#fff}
.pack-title::after{content:"";display:block;width:38px;height:4px;background:var(--amber2);margin-top:16px;border-radius:2px}
.pack-rows{margin-top:26px;display:flex;flex-direction:column;gap:9px}
.pack-rows div{display:flex;justify-content:space-between;font-size:12px;padding-bottom:9px;border-bottom:1px solid rgba(255,255,255,.1)}
.pack-rows span{color:rgba(246,242,233,.6)}
.pack-rows b{font-weight:650;color:rgba(246,242,233,.92)}
.pack-foot{margin-top:auto;font-size:11px;color:rgba(246,242,233,.5);letter-spacing:.04em}

/* strip */
.strip{background:var(--ink);color:var(--paper)}
.strip-in{padding:16px 26px;display:flex;gap:10px;align-items:center;flex-wrap:wrap;font-size:14px}
.strip-in span{color:rgba(246,242,233,.55)}
.strip-in strong{color:var(--amber2);font-weight:700}

/* section */
.section{padding:84px 0}
.section-alt{background:rgba(20,17,12,.035);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:42px}
.kicker{display:inline-block;font-size:11.5px;font-weight:800;letter-spacing:.16em;color:var(--green);margin-bottom:14px}
h2{font-size:clamp(26px,3vw,38px);line-height:1.2;letter-spacing:-.028em;font-weight:820}
.section-head p{margin-top:14px;color:var(--muted);font-size:15.5px}

/* assets */
.asset-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.asset{background:#fbf8f2;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;transition:.2s}
.asset:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(20,17,12,.08);border-color:var(--line2)}
.asset-visual{height:190px;position:relative;overflow:hidden;display:grid;place-items:center}
.video-visual{background:linear-gradient(135deg,#1d1a14,#33291a)}
.video-visual::before{content:"";position:absolute;inset:18px;border:1px dashed rgba(245,183,75,.28);border-radius:10px}
.video-visual .play{width:58px;height:58px;border-radius:50%;background:var(--amber2);color:var(--ink);display:grid;place-items:center;font-size:17px;padding-left:4px;box-shadow:0 10px 30px rgba(245,183,75,.35);z-index:1}
.video-visual .ratio{position:absolute;right:26px;top:24px;font-size:10px;letter-spacing:.14em;color:rgba(246,242,233,.6);border:1px solid rgba(246,242,233,.25);padding:3px 8px;border-radius:5px}
.shot-visual{background:#e7dfd0}
.shot-visual img{width:100%;height:100%;object-fit:cover;object-position:top center}
.prompt-visual{background:#1f5c45;gap:8px;padding:26px}
.prompt-visual code{background:rgba(246,242,233,.12);color:#dff3e8;font-size:12px;padding:7px 12px;border-radius:7px;border:1px solid rgba(246,242,233,.12)}
.caption-visual{background:#f0e7d6;flex-direction:column;gap:8px;padding:30px}
.caption-visual .line{height:8px;border-radius:4px;background:rgba(20,17,12,.14);display:block}
.caption-visual .w1{width:72%}.caption-visual .w2{width:88%}.caption-visual .w3{width:55%}
.caption-visual .tag{display:inline-block;margin:12px 5px 0 0;font-size:10.5px;font-weight:700;padding:3px 9px;border-radius:999px;background:var(--ink);color:var(--paper)}
.asset-body{padding:20px 22px 18px;display:flex;flex-direction:column;flex:1}
.asset-body h3{font-size:17px;font-weight:780;letter-spacing:-.01em}
.asset-body p{margin-top:8px;font-size:13.5px;color:var(--muted);flex:1}
.asset-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;padding-top:13px;border-top:1px solid var(--line)}
.asset-foot .file{font-size:11px;color:var(--dim);font-family:ui-monospace,Menlo,monospace}
.asset-foot a{font-size:13px;font-weight:750;border-bottom:1.5px solid var(--amber);padding-bottom:1px}
.asset-foot a:hover{color:var(--green);border-color:var(--green)}

.download-bar{margin-top:26px;background:var(--ink);color:var(--paper);border-radius:var(--r);padding:22px 26px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.download-bar b{font-size:16px;display:block;color:#fff}
.download-bar span{font-size:13px;color:rgba(246,242,233,.6)}
.download-bar .btn-dark{background:var(--amber2);color:var(--ink)}
.download-bar .btn-dark:hover{background:#ffc85f}

/* tabs */
.tabs{display:flex;gap:8px;margin-bottom:18px;flex-wrap:wrap}
.tab{font:inherit;font-size:13.5px;font-weight:700;padding:9px 17px;border-radius:999px;border:1px solid var(--line2);background:transparent;color:var(--muted);cursor:pointer;transition:.18s}
.tab:hover{color:var(--ink);border-color:var(--ink)}
.tab.active{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.caption-panel{background:#fbf8f2;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.caption{display:none;padding:26px 28px 24px}
.caption.active{display:block}
.caption-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.caption-head span{font-size:12px;font-weight:800;letter-spacing:.12em;color:var(--green)}
.copy{font:inherit;font-size:12.5px;font-weight:750;padding:6px 14px;border-radius:8px;border:1px solid var(--line2);background:transparent;color:var(--ink);cursor:pointer;transition:.16s}
.copy:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.copy.dark{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.copy.dark:hover{background:var(--green);border-color:var(--green)}
.caption pre{white-space:pre-wrap;word-break:break-word;font-family:inherit;font-size:14.2px;line-height:1.78;color:var(--ink2);background:rgba(20,17,12,.028);border:1px solid var(--line);border-radius:12px;padding:20px 22px;max-height:420px;overflow:auto}
.caption-note{margin-top:12px;font-size:12px;color:var(--dim)}

/* license */
.license-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:52px;align-items:start}
.license-lede{color:var(--muted);margin-top:14px;font-size:15.5px}
.rules{list-style:none;margin-top:26px;display:flex;flex-direction:column;gap:18px}
.rules li{padding-left:26px;position:relative}
.rules li::before{content:"";position:absolute;left:0;top:8px;width:10px;height:10px;border-radius:3px;background:var(--amber2);box-shadow:0 0 0 4px rgba(232,163,58,.16)}
.rules b{display:block;font-size:15.5px;font-weight:780;margin-bottom:2px}
.rules span{font-size:13.8px;color:var(--muted)}
.license-card{background:var(--ink);color:var(--paper);border-radius:var(--r);padding:24px 26px;box-shadow:0 20px 50px rgba(20,17,12,.16)}
.lc-head{display:flex;justify-content:space-between;font-size:11.5px;font-weight:800;letter-spacing:.14em;color:rgba(246,242,233,.6);padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.14)}
.lc-head span{color:var(--amber2)}
.lc-row{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.08);font-size:13.5px}
.lc-row span{color:rgba(246,242,233,.6)}
.lc-row b{color:#fff;font-weight:700}
.lc-row b:first-letter{color:var(--amber2)}
.lc-foot{margin-top:16px;font-size:11.5px;color:rgba(246,242,233,.45)}
.lc-foot code{background:rgba(255,255,255,.1);color:rgba(246,242,233,.8)}

/* steps */
.steps{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.steps li{background:#fbf8f2;border:1px solid var(--line);border-radius:var(--r);padding:24px 22px;display:flex;gap:14px}
.steps .num{flex:0 0 34px;height:34px;border-radius:10px;background:var(--amber2);display:grid;place-items:center;font-weight:850;font-size:15px}
.steps b{font-size:15.5px;font-weight:780;display:block;margin-bottom:4px}
.steps p{font-size:13.5px;color:var(--muted)}

/* utm */
.utm{margin-top:28px;background:#fbf8f2;border:1px solid var(--line);border-radius:var(--r);padding:28px;display:grid;grid-template-columns:.8fr 1.2fr;gap:36px}
.utm-copy h3{font-size:18px;font-weight:800;letter-spacing:-.01em}
.utm-copy p{font-size:13.5px;color:var(--muted);margin-top:6px}
.utm-form{display:flex;flex-direction:column;gap:12px}
.utm-form label{font-size:12px;font-weight:700;color:var(--muted);display:flex;flex-direction:column;gap:6px}
.utm-form select,.utm-form input{font:inherit;font-size:13.5px;padding:10px 12px;border-radius:9px;border:1px solid var(--line2);background:var(--paper);color:var(--ink);outline:none}
.utm-form select:focus,.utm-form input:focus{border-color:var(--ink)}
.utm-out{display:flex;gap:8px}
.utm-out input{flex:1;font-family:ui-monospace,Menlo,monospace;font-size:12px;color:var(--green)}

/* final */
.final{padding-top:20px;padding-bottom:96px}
.final-card{background:linear-gradient(135deg,#1a1610,#272014);color:var(--paper);border-radius:26px;padding:58px 54px;text-align:center;position:relative;overflow:hidden;border:1px solid rgba(255,255,255,.08)}
.final-card::before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(232,163,58,.18),transparent 68%);top:-180px;right:-120px}
.final-card .kicker{color:var(--amber2)}
.final-card h2{color:#fff;font-size:clamp(26px,3.2vw,40px)}
.final-card p{color:rgba(246,242,233,.62);margin:14px auto 28px;max-width:560px;font-size:14.5px}
.final-card .btn-primary{position:relative}

/* footer */
.footer{border-top:1px solid var(--line);background:rgba(20,17,12,.025)}
.footer-in{padding:34px 26px;display:grid;grid-template-columns:1fr auto;gap:10px 30px;align-items:center}
.footer b{font-size:14px;font-weight:800;display:block}
.footer span{font-size:12px;color:var(--dim)}
.footer-links{display:flex;gap:20px;flex-wrap:wrap;font-size:12.5px;color:var(--muted)}
.footer-links a:hover{color:var(--ink)}
.footer-note{grid-column:1/-1;font-size:11.5px;color:var(--dim);border-top:1px solid var(--line);padding-top:16px;margin-top:8px}

/* toast */
.toast{position:fixed;left:50%;bottom:30px;transform:translate(-50%,20px);background:var(--ink);color:var(--paper);font-size:13px;font-weight:650;padding:10px 20px;border-radius:999px;opacity:0;pointer-events:none;transition:.22s;z-index:99}
.toast.show{opacity:1;transform:translate(-50%,0)}

@media(max-width:900px){
  .hero{grid-template-columns:1fr;gap:46px;padding-top:52px}
  .hero-art{height:400px;order:2}
  .nav-links{display:none}
  .asset-grid{grid-template-columns:1fr}
  .license-grid{grid-template-columns:1fr;gap:34px}
  .steps{grid-template-columns:1fr}
  .utm{grid-template-columns:1fr;gap:20px}
  .final-card{padding:42px 24px}
  .footer-in{grid-template-columns:1fr}
}
@media(max-width:520px){
  .wrap{padding:0 18px}
  .nav-in{padding:12px 18px}
  .hero-meta{gap:22px;flex-wrap:wrap}
  .download-bar{padding:20px}
  .caption{padding:20px 18px}
  .caption pre{font-size:13.4px;padding:16px}
  .section{padding:64px 0}
  .strip-in{padding:14px 18px;font-size:12.5px}
}