/*
 * 样式：Influencer Merch 落地页（jlt-influencer）。
 * 以 branding.css / jlt-ai-embroidery.css 为基底，保持同一套设计 token
 * （珊瑚单强调色 / Satoshi / 发丝线分隔 / .reveal 渐入）。CSS 自包含，
 * 含 nav 所需样式段（导航是共享 partial，但样式仍需模板自带，漏了会爆屏）。
 * 本页专属区块：
 *   .argument-grid：论点区，左侧 H2 直答段，右侧三条理由（发丝线分隔，非等分卡）
 *   .bento-grid：品类展示四卡（刺绣/鞋/手表/服装），首尾两卡纵向拉高，中间两卡上下叠放
 *   .brandband-grid / .price-row / .price-chip：白标品牌化区，左文右图 + 三项价签胶囊
 *   .steps-grid：步骤时间轴（左列表右配图，承袭 branding.css 写法）
 */
: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 (split, image right) ---------- */
.hero-full{max-width:1280px;margin:0 auto;padding:56px 32px 72px;display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center}
.hero-copy{display:flex;flex-direction:column;justify-content:center}
h1{font-size:clamp(40px,4.6vw,60px);font-weight:900;letter-spacing:-.035em;line-height:1.04}
h1 .tint{color:var(--coral-deep)}
.hero-sub{font-size:18px;color:var(--ink-soft);max-width:46ch;margin:22px 0 32px}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap}
.hero-media{position:relative;overflow:hidden;background:var(--paper-raise);border-radius:calc(var(--radius) + 6px);aspect-ratio:4/3;max-height:520px;box-shadow:20px 26px 70px rgba(232,80,63,.16)}
.hero-media img{width:100%;height:100%;object-fit:cover}

/* ---------- 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)}

/* ---------- argument (为什么 T 恤不够：左直答段，右三条理由发丝线分隔) ---------- */
.argument{padding:96px 0 104px}
.argument-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:start}
.argument-copy h2{margin-bottom:22px}
.argument-copy p{font-size:18px;color:var(--ink-soft);max-width:52ch}
.reason{padding:24px 0}
.reason + .reason{border-top:1px solid var(--hairline)}
.reason:first-child{padding-top:0}
.reason h3{font-size:18px;font-weight:700;letter-spacing:-.01em}
.reason p{color:var(--ink-soft);font-size:15.5px;margin-top:8px;max-width:48ch}

/* ---------- bento（品类展示四卡：首尾纵向拉高，中间两卡上下叠放） ---------- */
.bento{padding:0 0 120px}
.bento h2{margin-bottom:14px;max-width:60ch}
.bento .lede{color:var(--ink-soft);max-width:64ch;margin-bottom:44px;font-size:17px}
.bento-grid{display:grid;grid-template-columns:1.1fr .9fr 1.1fr;grid-template-rows:220px 220px;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:nth-child(1){grid-column:1;grid-row:1 / 3}
.cell:nth-child(2){grid-column:2;grid-row:1}
.cell:nth-child(3){grid-column:2;grid-row:2}
.cell:nth-child(4){grid-column:3;grid-row:1 / 3}
.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}

/* ---------- cta band ---------- */
.cta-band{background:var(--coral-deep);color:#fff;padding:88px 0;border-radius:calc(var(--radius) + 8px);margin:0 32px 120px}
.cta-band:last-of-type{margin-bottom:32px}
.cta-in{max-width:760px;margin:0 auto;text-align:center;padding:0 32px}
.cta-in h2{color:#fff;margin-bottom:34px}
.btn-invert{background:#fff;color:var(--coral-deep)}
.btn-invert:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(28,25,23,.25)}

/* ---------- brandband（白标品牌化区：左文右图 + 三项价签胶囊） ---------- */
.brandband{padding:0 0 120px}
.brandband-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:center}
.brandband-copy h2{margin-bottom:20px;max-width:20ch}
.brandband-copy p{color:var(--ink-soft);font-size:17px;max-width:52ch}
.price-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.price-chip{display:flex;align-items:center;gap:10px;background:var(--paper-raise);border-radius:999px;padding:10px 18px}
.price-chip span{font-size:14px;color:var(--ink-soft);font-weight:500}
.price-chip b{font-size:15px;color:var(--coral-deep);font-variant-numeric:tabular-nums}
.brandband-media img{border-radius:calc(var(--radius) + 6px);aspect-ratio:1/1;object-fit:cover;width:100%;box-shadow:20px 26px 70px rgba(232,80,63,.16)}

/* ---------- steps（左列表右配图，承袭 branding.css 写法） ---------- */
.steps{padding:0 0 120px}
.steps-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:72px;align-items:center}
.steps-list h2{margin-bottom:24px}
.step{display:grid;grid-template-columns:44px 1fr;gap:20px;padding:26px 0}
.step + .step{border-top:1px solid var(--hairline)}
.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:19px;font-weight:700;letter-spacing:-.01em}
.step p{color:var(--ink-soft);font-size:15.5px;margin-top:6px;max-width:56ch}
.steps-media img{border-radius:calc(var(--radius) + 6px);aspect-ratio:1/1;object-fit:cover;width:100%;box-shadow:20px 26px 70px rgba(232,80,63,.16)}

/* ---------- 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}

/* ---------- footer（页脚由共享 partial 自带样式，此处留空占位不冲突） ---------- */
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)}

/* ---------- 内链区：Keep exploring ---------- */
.related{border-top:1px solid var(--hairline);padding:40px 0}
.related-eyebrow{font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:#78716c;margin:0 0 14px}
.related-links{display:flex;gap:12px;flex-wrap:wrap}
.related-links a{display:inline-block;padding:10px 18px;border:1px solid var(--hairline);border-radius:999px;color:var(--ink);text-decoration:none;font-weight:500;transition:border-color .2s,color .2s}
.related-links a:hover{border-color:var(--coral-deep);color:var(--coral-deep)}

/* ---------- 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-full{grid-template-columns:1fr;padding:32px 20px 48px;gap:32px}
  .hero-copy{order:2}.hero-media{order:1;aspect-ratio:16/10;max-height:300px}
  .stats-in{grid-template-columns:1fr 1fr;row-gap:28px}.stat{border-left:none;padding:0}
  .argument-grid{grid-template-columns:1fr;gap:36px}
  .bento-grid{grid-template-columns:1fr;grid-template-rows:repeat(4,240px)}
  .cell:nth-child(1),.cell:nth-child(2),.cell:nth-child(3),.cell:nth-child(4){grid-column:1;grid-row:auto}
  .brandband-grid{grid-template-columns:1fr;gap:32px}
  .brandband-media{order:-1}
  .steps-grid{grid-template-columns:1fr;gap:40px}
  .faq-grid{grid-template-columns:1fr;gap:0}
  .cta-band{margin:0 16px 96px}.cta-band:last-of-type{margin-bottom:16px}
  .wrap{padding:0 20px}
  .nav-links{display:none}
}