/*
 * 样式：AI Embroidery 落地页。
 * 以 embroidery.css 为基底改造，保持设计 token 一致（珊瑚色/Satoshi/发丝线/.reveal 动效），
 * 差异化部分（hero 浮动信息片、三方对比表珊瑚高亮列、核心卡片 Bento 网格、横幅高亮区）
 * 取自已获批的设计稿版式。
 */
:root{
  --ink:#1c1917; --ink-soft:#57534e; --paper:#fafaf9; --paper-raise:#f5f5f4;
  --coral:#FF8A7F; --coral-deep:#e8503f; --coral-tint:#fff1ef;
  --hairline:#e7e5e4; --radius:16px; --radius-tight:10px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Satoshi',ui-sans-serif,system-ui,-apple-system,sans-serif;background:var(--paper);color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:1280px;margin:0 auto;padding:0 32px}
h2{font-size:clamp(28px,3.2vw,40px);font-weight:900;letter-spacing:-.028em;line-height:1.15}

/* ---------- nav ---------- */
nav{position:sticky;top:0;z-index:50;background:rgba(250,250,249,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--hairline)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:68px}
.nav-links{display:flex;gap:36px;font-weight:500;font-size:15px;color:var(--ink-soft)}
.nav-links a:hover{color:var(--ink)}
.nav-links a.current{color:var(--coral-deep)}
.logo img{height:34px;width:auto}

/* ---------- buttons ---------- */
.btn{display:inline-block;font-weight:700;font-size:16px;padding:14px 30px;border-radius:var(--radius-tight);transition:transform .2s cubic-bezier(.16,1,.3,1),box-shadow .2s,background .2s;white-space:nowrap}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--coral-deep);color:#fff;box-shadow:0 8px 24px rgba(232,80,63,.25)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(232,80,63,.35)}
.btn-ghost{color:var(--ink);border:1.5px solid var(--hairline);background:transparent}
.btn-ghost:hover{border-color:var(--ink);transform:translateY(-2px)}
.btn-sm{padding:10px 22px;font-size:14.5px}

/* ---------- hero ---------- */
.hero{padding:72px 0 88px}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:center}
h1{font-size:clamp(42px,5.2vw,68px);font-weight:900;letter-spacing:-.035em;line-height:1.02}
h1 .tint{color:var(--coral-deep)}
.hero-sub{font-size:19px;color:var(--ink-soft);max-width:44ch;margin:24px 0 0}
.hero-body{font-size:15.5px;color:var(--ink-soft);max-width:52ch;margin:14px 0 32px}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap}
.hero-visual{position:relative}
.hero-visual img{border-radius:var(--radius);aspect-ratio:4/3;object-fit:cover;box-shadow:24px 32px 80px rgba(232,80,63,.18);transform:rotate(1.2deg)}
.hero-chip{position:absolute;left:-20px;bottom:28px;background:#fff;border:1px solid var(--hairline);border-radius:var(--radius-tight);padding:14px 20px;box-shadow:0 16px 40px rgba(28,25,23,.10);transform:rotate(-1deg);max-width:220px}
.hero-chip strong{display:block;font-size:15px}
.hero-chip span{font-size:13.5px;color:var(--ink-soft)}

/* ---------- stat band ---------- */
.stats{border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline);background:var(--paper-raise)}
.stats-in{display:grid;grid-template-columns:repeat(4,1fr);padding:36px 0}
.stat{text-align:left;padding:0 40px;border-left:1px solid var(--hairline)}
.stat:first-child{border-left:none}
.stat b{display:block;font-size:34px;font-weight:900;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.stat span{font-size:14.5px;color:var(--ink-soft)}

/* ---------- statement ---------- */
.statement{padding:104px 0 96px}
.statement .measure{max-width:70ch}
.statement h2{margin-bottom:26px}
.statement p{font-size:18px;color:var(--ink-soft);max-width:62ch}

/* ---------- steps (asymmetric 2-col) ---------- */
.steps{padding:0 0 120px}
.steps-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:80px}
.steps-left p{color:var(--ink-soft);margin-top:18px;max-width:40ch;font-size:16px}
.steps-left h2{margin-bottom:0}
.step{display:grid;grid-template-columns:64px 1fr;gap:24px;padding:34px 0}
.step + .step{border-top:1px solid var(--hairline)}
.step:first-child{padding-top:0}
.step-num{font-size:15px;font-weight:700;color:var(--coral-deep);background:var(--coral-tint);border-radius:50%;width:44px;height:44px;display:flex;align-items:center;justify-content:center}
.step h3{font-size:20px;font-weight:700;letter-spacing:-.01em}
.step p{color:var(--ink-soft);font-size:16px;margin-top:6px;max-width:52ch}

/* ---------- compare ---------- */
.compare{padding:0 0 120px}
.compare h2{margin-bottom:44px}
.table{width:100%;border-collapse:separate;border-spacing:0;font-size:15.5px}
.table th{text-align:left;font-weight:700;padding:16px 20px;font-size:14.5px;color:var(--ink-soft)}
.table th.jet{color:var(--coral-deep)}
.table td{padding:18px 20px;vertical-align:top}
.table tbody tr:nth-child(odd) td{background:var(--paper-raise)}
.table td.dim{color:var(--ink-soft)}
.table td.jet{background:var(--coral-tint)!important;font-weight:500}
.table td:first-child{font-weight:700;white-space:nowrap}
.table tbody tr:first-child td.jet{border-radius:var(--radius-tight) var(--radius-tight) 0 0}
.table tbody tr:last-child td.jet{border-radius:0 0 var(--radius-tight) var(--radius-tight)}

/* ---------- bento (核心卡片) ---------- */
.bento{padding:0 0 120px}
.bento h2{margin-bottom:14px;max-width:60ch}
.bento .lede{color:var(--ink-soft);max-width:62ch;margin-bottom:44px;font-size:17px}
.bento-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;grid-template-rows:280px 280px;gap:18px}
.cell{position:relative;border-radius:var(--radius);overflow:hidden;background:var(--paper-raise);display:block;transition:transform .3s cubic-bezier(.16,1,.3,1)}
.cell:hover{transform:translateY(-4px)}
.cell img{width:100%;height:100%;object-fit:cover}
.cell.tall{grid-row:span 2}
.cell-label{position:absolute;left:0;right:0;bottom:0;padding:44px 22px 16px;background:linear-gradient(transparent,rgba(28,25,23,.78));color:#fff;display:flex;flex-direction:column;gap:4px}
.cell-label strong{font-weight:700;font-size:17px;letter-spacing:-.01em}
.cell-label span{font-size:13px;opacity:.88;line-height:1.4}
.cell-label span a{text-decoration:underline;text-underline-offset:2px}

/* ---------- highlight band (横幅) ---------- */
.highlight{padding:0 0 120px}
.highlight-band{background:var(--coral-tint);border-radius:calc(var(--radius) + 8px);padding:64px;text-align:center;max-width:820px;margin:0 auto}
.highlight-band h2{margin-bottom:16px}
.highlight-band p{color:var(--ink-soft);font-size:17px;max-width:56ch;margin:0 auto 28px}

/* ---------- faq ---------- */
.faq{padding:0 0 120px}
.faq h2{margin-bottom:48px}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 72px}
.qa{padding:26px 0;border-top:1px solid var(--hairline)}
.qa h3{font-size:17.5px;font-weight:700;letter-spacing:-.01em}
.qa p{color:var(--ink-soft);font-size:15.5px;margin-top:8px}

/* ---------- cta band ---------- */
.cta-band{background:var(--coral-deep);color:#fff;padding:88px 0;border-radius:calc(var(--radius) + 8px);margin:0 32px 32px}
.cta-in{max-width:760px;margin:0 auto;text-align:center;padding:0 32px}
.cta-in h2{color:#fff}
.cta-in p{opacity:.92;margin:18px 0 34px;font-size:17px}
.btn-invert{background:#fff;color:var(--coral-deep)}
.btn-invert:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(28,25,23,.25)}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--hairline);padding:36px 0;color:var(--ink-soft);font-size:14px}
.foot-in{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.foot-links{display:flex;gap:28px}
.foot-links a:hover{color:var(--ink)}

/* ---------- reveal motion ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.16,1,.3,1),transform .7s cubic-bezier(.16,1,.3,1)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){.reveal{opacity:1;transform:none;transition:none}.btn,.cell{transition:none}html{scroll-behavior:auto}}

/* ---------- mobile ---------- */
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;padding:0;gap:32px}
  .hero-copy{order:2}.hero-visual{order:1}
  .hero-visual img{aspect-ratio:16/10}
  .hero-chip{left:12px;bottom:-16px}
  .stats-in{grid-template-columns:1fr 1fr;row-gap:28px}.stat{border-left:none;padding:0}
  .steps-grid,.faq-grid{grid-template-columns:1fr;gap:40px}
  .bento-grid{grid-template-columns:1fr;grid-template-rows:repeat(5,240px)}
  .cell.tall{grid-row:span 1}
  .highlight-band{padding:40px 24px}
  .cta-band{margin:0 16px 16px}
  .wrap{padding:0 20px}
  .nav-links{display:none}
  .table{font-size:14px}.table th,.table td{padding:12px 10px}
}