/* Kipsmln.com — 全站样式
   移动端优先 · 主色 #7f1d1d · 修改后无需重新生成页面 */
:root{
  --brand:#7f1d1d; --brand-d:#661616; --ink:#1f2937; --ink-2:#4b5563; --ink-3:#6b7280;
  --line:#e5e7eb; --bg:#fff; --bg-2:#f7f7f8; --ok:#047857; --ok-bg:#ecfdf5;
  --radius:12px; --max:1080px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.72;font-size:16px}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
h1{font-size:27px;line-height:1.28;margin-bottom:10px;letter-spacing:-.2px}
h2{font-size:20px;margin:30px 0 12px;letter-spacing:-.1px}
h3{font-size:16.5px;margin:18px 0 6px}
h4{font-size:14px;margin-bottom:8px;color:#fff}
p{margin-bottom:12px}
main{max-width:var(--max);margin:0 auto;padding:0 18px 56px}
.micro{font-size:13px;color:var(--ink-3)}
.lead{font-size:17px;color:var(--ink-2);margin-bottom:18px}
.center{text-align:center}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.skip{position:absolute;left:-999px}
.skip:focus{left:12px;top:12px;background:#fff;padding:8px 12px;z-index:99;border-radius:8px}

/* ---------- header ---------- */
.hd{background:var(--brand);color:#fff}
.hd-in{max-width:var(--max);margin:0 auto;padding:14px 18px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.logo{color:#fff;font-size:22px;font-weight:700;letter-spacing:1.5px}
.logo:hover{text-decoration:none}
.hd nav{display:flex;gap:16px;flex-wrap:wrap}
.hd nav a{color:#fff;font-size:14.5px;opacity:.92}
.hd nav a:hover{opacity:1;text-decoration:underline}

/* ---------- hero ---------- */
.hero{padding:34px 0 8px;display:grid;gap:24px}
.eyebrow{display:inline-block;background:var(--bg-2);color:var(--brand);font-size:12.5px;
  font-weight:700;letter-spacing:.6px;padding:5px 11px;border-radius:20px;margin-bottom:12px}
.hero p.lead{font-size:16.5px}
.cta{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0 8px}
.cta-c{justify-content:center}
.btn{display:inline-block;background:var(--brand);color:#fff;padding:13px 20px;border-radius:9px;
  font-size:15.5px;font-weight:600;border:none;cursor:pointer;font-family:inherit;text-align:center}
.btn:hover{background:var(--brand-d);text-decoration:none;color:#fff}
.btn.ghost{background:#fff;color:var(--brand);border:1.5px solid var(--brand)}
.btn.ghost:hover{background:#fdf2f2;color:var(--brand)}
.btn.full{width:100%;margin-top:8px}

/* ---------- 图片占位 ---------- */
.ph{background:linear-gradient(135deg,#f3f4f6,#e5e7eb);border:1px dashed #cbd5e1;
  border-radius:var(--radius);aspect-ratio:var(--ar,16/9);display:flex;align-items:center;
  justify-content:center;text-align:center;color:var(--ink-3);font-size:13px;padding:14px}
.ph span{line-height:1.6}
.ph b{color:var(--ink-2);font-size:12px}

/* ---------- 卡片 ---------- */
.cards{display:grid;gap:14px;margin:34px 0}
.card{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 18px;color:inherit}
.card:hover{border-color:var(--brand);text-decoration:none}
.card h3{display:flex;justify-content:space-between;align-items:center;margin:0 0 6px;font-size:16.5px}
.card h3 span{color:var(--brand);font-weight:700}
.card p{font-size:14px;color:var(--ink-2);margin:0}

/* ---------- 分段 ---------- */
.split{display:grid;gap:22px;margin:34px 0;align-items:center}
.tick{list-style:none;padding:0}
.tick li{position:relative;padding-left:26px;margin-bottom:9px;font-size:15px}
.tick li:before{content:"✓";position:absolute;left:0;top:0;color:var(--brand);font-weight:700}

/* ---------- 规格表 ---------- */
.spec{margin:34px 0}
.spec-t{width:100%;border-collapse:collapse;font-size:14.5px}
.spec-t td{padding:10px 8px;border-bottom:1px solid var(--line);vertical-align:top}
.spec-t td:first-child{width:38%;color:var(--ink-3)}

/* ---------- 购买区 ---------- */
.buy{background:var(--bg-2);border-radius:var(--radius);padding:26px 20px;text-align:center;margin:34px 0}
.buy h2{margin-top:0}

/* ---------- 窄栏（内容页） ---------- */
.narrow{max-width:720px;margin:0 auto;padding-top:28px}
.prose h2{margin-top:26px;font-size:18px}
.prose p,.prose li{font-size:15.5px}
.num-list{padding-left:22px;margin:10px 0}
.num-list li{margin-bottom:10px}

/* ---------- 表单 ---------- */
.badge{display:inline-block;background:var(--ok-bg);color:var(--ok);font-size:13px;font-weight:600;
  padding:5px 12px;border-radius:20px;margin-bottom:14px}
.form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 18px;margin:16px 0}
.form label{display:block;font-size:14px;font-weight:600;margin:14px 0 5px}
.form label:first-child{margin-top:0}
.form .opt{font-weight:400;color:var(--ink-3);font-size:13px}
.form input,.form select,.form textarea{width:100%;padding:12px;border:1px solid #d1d5db;
  border-radius:9px;font-size:16px;font-family:inherit;background:#fff}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid var(--brand);outline-offset:0;border-color:var(--brand)}
.hint{font-size:12.5px;color:var(--ink-3);margin:6px 0 0}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-msg{font-size:14px;margin-top:10px;min-height:20px}
.form-msg.ok{color:var(--ok);font-weight:600}
.form-msg.err{color:#b91c1c}
.quick{background:var(--bg-2);border-radius:var(--radius);padding:16px 18px;margin:16px 0}
.quick h2{margin:0 0 8px;font-size:16px}
.quick ul{padding-left:20px}
.quick li{margin:5px 0;font-size:14.5px}
.alt{background:#fef3f2;border-left:4px solid var(--brand);padding:14px 16px;border-radius:0 8px 8px 0;
  font-size:14px;margin-top:18px}

/* ---------- 冷却卡 / 提示卡 ---------- */
.cool{margin-top:22px}
.cool h2{font-size:19px;color:var(--ok)}
.cool-card{background:#fffbeb;border:1px solid #fde68a;border-radius:var(--radius);
  padding:15px 17px;margin:12px 0;font-size:14.5px}
.cool-card b{display:block;margin-bottom:4px}
.cool-card p{margin:0;color:#78350f}
.cool-card a{color:var(--brand)}

/* ---------- 步骤 ---------- */
.steps{margin:22px 0}
.step{display:flex;gap:14px;margin-bottom:20px}
.step .num{flex:0 0 34px;height:34px;border-radius:50%;background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px}
.step h3{margin:2px 0 4px}
.step p{font-size:15px;color:var(--ink-2);margin:0}
.vid{margin:14px 0}
.vid-p span{font-size:14px}

/* ---------- FAQ ---------- */
.search{margin:18px 0 6px}
.search input{width:100%;padding:13px 14px;border:1px solid #d1d5db;border-radius:10px;
  font-size:16px;font-family:inherit}
.search input:focus{outline:2px solid var(--brand);border-color:var(--brand)}
.jump{font-size:13.5px;color:var(--ink-3);margin-bottom:6px}
.jump a{margin-right:6px}
.faq-g{margin-top:26px}
.faq-g h2{font-size:18px;border-bottom:2px solid var(--line);padding-bottom:8px;
  display:flex;justify-content:space-between;align-items:center}
.faq-g h2 .cnt{font-size:12.5px;font-weight:500;color:var(--ink-3)}
.faq-g details{border-bottom:1px solid var(--line);padding:12px 0}
.faq-g summary{cursor:pointer;font-weight:600;font-size:15.5px;list-style:none;padding-right:22px;position:relative}
.faq-g summary::-webkit-details-marker{display:none}
.faq-g summary:before{content:"＋";position:absolute;right:0;top:-1px;color:var(--brand);font-weight:700}
.faq-g details[open] summary:before{content:"－"}
.faq-g details p{margin:10px 0 0 2px;font-size:15px;color:var(--ink-2)}
.faq-g details[hidden]{display:none}
.noresult{background:#fffbeb;border-radius:8px;padding:12px 14px;font-size:14px}

/* ---------- 404 ---------- */
.flat{list-style:none;padding:0;margin-top:18px;display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* ---------- footer ---------- */
.ft{background:#111827;color:#d1d5db;margin-top:46px}
.ft-in{max-width:var(--max);margin:0 auto;padding:34px 18px 20px;
  display:grid;grid-template-columns:1fr;gap:24px}
.ft-logo{color:#fff;font-size:19px;font-weight:700;letter-spacing:1.2px;margin-bottom:8px}
.ft-s{font-size:13.5px;color:#9ca3af}
.ft-col a{display:block;color:#d1d5db;font-size:14px;margin-bottom:6px}
.ft-col a:hover{color:#fff}
.ft-bot{border-top:1px solid #1f2937}
.ft-bot p{max-width:var(--max);margin:0 auto;padding:16px 18px 26px;font-size:12px;color:#9ca3af}

/* ---------- ≥720px ---------- */
@media (min-width:720px){
  body{font-size:16.5px}
  h1{font-size:36px}
  h2{font-size:22px}
  main{padding:0 26px 64px}
  .hero{grid-template-columns:1.05fr .95fr;gap:38px;padding:46px 0 10px;align-items:center}
  .cards{grid-template-columns:repeat(3,1fr)}
  .split{grid-template-columns:1fr 1fr;gap:34px}
  .ft-in{grid-template-columns:1.6fr 1fr 1.2fr 1fr}
  .form{padding:24px 26px}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}