/* 冷心口袋 · 清点台
   bg #F4F5F7 / ink #16202C / accent #CF2B54 */

:root{
  --bg:#F4F5F7;
  --card:#FFFFFF;
  --ink:#16202C;
  --ink-2:#4C5A6A;
  --ink-3:#8C97A4;
  --pink:#CF2B54;
  --pink-2:#B3244A;
  --pink-soft:#FBE8ED;
  --pink-lt:#FF7A98;
  --line:rgba(22,32,44,.12);
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:15px;line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
::selection{background:rgba(207,43,84,.16)}

.wrap{width:100%;max-width:1080px;margin:0 auto;padding:0 20px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:46px;padding:0 24px;border-radius:9px;border:1px solid transparent;
  font-size:15px;font-weight:700;text-decoration:none;white-space:nowrap;
  transition:background-color .18s ease,border-color .18s ease,color .18s ease;
}
.btn-main{background:var(--pink);color:#fff}
.btn-main:hover{background:var(--pink-2)}
.btn-plain{background:var(--card);color:var(--ink);border-color:var(--line)}
.btn-plain:hover{border-color:rgba(22,32,44,.28)}
.btn-pink{background:var(--pink-lt);color:#2A0A13}
.btn-pink:hover{background:#FF9BB0}
.btn-s{min-height:38px;padding:0 16px;font-size:14px;border-radius:7px}
.btn:focus-visible{outline:2px solid var(--ink);outline-offset:2px}

/* 顶栏 */
.head{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line)}
.head-row{display:flex;align-items:center;gap:12px;min-height:62px}
.logo{display:flex;align-items:center;gap:9px;text-decoration:none;font-weight:700;font-size:17px}
.logo img{width:30px;height:30px;border-radius:6px}
.menu{display:none;flex:1 1 auto;justify-content:flex-end;gap:22px}
.menu a{font-size:14px;color:var(--ink-2);text-decoration:none;padding:6px 0}
.menu a:hover{color:var(--pink)}
.head-row .btn-main{margin-left:auto}
.burger{
  order:3;display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;background:#fff;color:var(--ink);
  border:1px solid var(--line);border-radius:8px;cursor:pointer;
}
.burger:focus-visible{outline:2px solid var(--ink);outline-offset:2px}
body.nav-open .menu{
  display:flex;position:fixed;left:0;right:0;top:62px;
  flex-direction:column;align-items:flex-start;gap:0;
  padding:6px 20px 14px;background:#fff;border-bottom:1px solid var(--line);
}
body.nav-open .menu a{width:100%;padding:12px 0;border-bottom:1px solid var(--line);font-size:15px}

/* 首屏 */
.hero{background:var(--bg);padding:40px 0 48px}
.hero-row{display:grid;grid-template-columns:1fr;gap:30px;align-items:start}
.kicker{
  display:flex;align-items:center;gap:10px;
  margin:0 0 14px;font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--pink);
}
.kicker span{color:var(--ink-3);font-weight:400}
.hero h1{margin:0;font-size:52px;line-height:1.05;font-weight:800;letter-spacing:-.01em}
.hero-text{margin:20px 0 0;max-width:34ch;font-size:15px;line-height:1.85;color:var(--ink-2)}
.hero-btns{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.facts{
  display:grid;grid-template-columns:1fr 1fr;gap:0 16px;
  margin:30px 0 0;padding:0;list-style:none;max-width:420px;
}
.facts li{
  padding:11px 0;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-2);font-weight:600;
}

/* 手机框 */
.frame{
  margin:0;background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:10px 10px 0;max-width:260px;
}
.frame img{width:100%;border-radius:7px}
.frame figcaption{
  padding:10px 2px 12px;font-size:11.5px;color:var(--ink-3);letter-spacing:.02em;
}
.frame-sm{max-width:240px}

/* 区块 */
.sec{padding:48px 0 54px;border-top:1px solid var(--line)}
main .wrap{padding-bottom:0}
.sec-head{margin-bottom:26px}
.no{
  display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.16em;
  color:var(--pink);font-variant-numeric:tabular-nums;
}
.sec-head h2{margin:10px 0 0;font-size:27px;line-height:1.35;font-weight:800;letter-spacing:-.01em}
.sub{margin:10px 0 0;max-width:54ch;font-size:14px;line-height:1.8;color:var(--ink-2)}

/* 三入口 */
.entry-grid{display:grid;grid-template-columns:1fr;gap:12px}
.entry-card{
  background:var(--card);border:1px solid var(--line);border-radius:12px;
  padding:20px 18px 22px;
}
.tag{
  display:inline-block;font-size:11px;font-weight:700;letter-spacing:.1em;
  color:var(--pink);background:var(--pink-soft);
  padding:2px 8px;border-radius:20px;
}
.entry-card h3{margin:12px 0 0;font-size:17px;font-weight:800}
.entry-card p{margin:8px 0 0;font-size:13.5px;line-height:1.8;color:var(--ink-2)}

/* 说明图 */
.zig{display:grid;grid-template-columns:1fr;gap:26px;align-items:start}
.points{margin:0;padding:0;list-style:none}
.points li{padding:13px 0;border-top:1px solid var(--line)}
.points b{display:block;font-size:15.5px;font-weight:800}
.points span{display:block;margin-top:5px;font-size:13.5px;color:var(--ink-2)}

/* 清单 */
.list{display:grid;grid-template-columns:1fr;gap:0}
.item{
  display:grid;grid-template-columns:1fr auto;align-items:baseline;gap:4px 16px;
  padding:14px 0;border-top:1px solid var(--line);
}
.item b{grid-column:1;grid-row:1;font-size:15px;font-weight:700}
.item i{
  grid-column:2;grid-row:1;justify-self:end;
  font-style:normal;font-size:11px;font-weight:700;letter-spacing:.06em;
  color:var(--pink);background:var(--pink-soft);
  padding:1px 7px;border-radius:4px;white-space:nowrap;
}
.item i.off{color:var(--ink-3);background:#EEF1F4}
.item span{
  grid-column:1 / -1;grid-row:2;
  font-size:13px;color:var(--ink-2);line-height:1.75;
}

/* 三步 */
.steps{display:grid;grid-template-columns:1fr;gap:12px}
.step{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:12px;
  padding:20px 18px 22px;
}
.step-no{
  display:block;font-size:34px;line-height:1;font-weight:800;color:var(--pink);
  font-variant-numeric:tabular-nums;
}
.step h3{margin:10px 0 0;font-size:16.5px;font-weight:800}
.step p{margin:7px 0 0;font-size:13.5px;line-height:1.8;color:var(--ink-2)}

/* 评价 */
.quotes{display:grid;grid-template-columns:1fr;gap:12px}
.quotes blockquote{
  margin:0;background:var(--card);border:1px solid var(--line);
  border-left:3px solid var(--pink);border-radius:0 12px 12px 0;
  padding:18px 20px 20px;
}
.quotes p{margin:0;font-size:15px;line-height:1.8}
.quotes footer{margin-top:10px;font-size:12px;color:var(--ink-3)}

/* 问答 */
.asks details{border-top:1px solid var(--line)}
.asks summary{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:15px 0;cursor:pointer;list-style:none;
  font-size:15px;font-weight:700;
}
.asks summary::-webkit-details-marker{display:none}
.asks summary::after{
  content:"+";flex:0 0 auto;font-size:18px;font-weight:700;color:var(--pink);line-height:1;
}
details[open] summary::after{content:"−"}
.asks details p{margin:0;padding:0 0 16px;font-size:13.5px;line-height:1.8;color:var(--ink-2)}

/* 下载带 */
.cta{
  margin-top:8px;
  background:var(--ink);color:#fff;border-radius:14px;
  padding:36px 22px 38px;
}
.cta-in{display:grid;grid-template-columns:1fr;gap:22px;align-items:center}
.kicker-lt{color:var(--pink-lt)}
.cta h2{margin:8px 0 0;font-size:27px;line-height:1.35;font-weight:800;letter-spacing:-.01em}
.cta p{margin:10px 0 0;max-width:44ch;font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.72)}
.cta-act{display:flex;flex-direction:column;align-items:flex-start;gap:10px}
.cta-meta{font-size:12px;color:rgba(255,255,255,.55)}

/* 页脚 */
.foot{background:var(--card);border-top:1px solid var(--line);padding:22px 0 30px;margin-top:44px}
.foot-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px}
.foot-logo{display:flex;align-items:center;gap:7px;font-size:14px;font-weight:700}
.foot-logo img{width:20px;height:20px;border-radius:4px}
.foot-row p{margin:0;font-size:12px;color:var(--ink-3)}
.foot-row .copy{margin-left:auto}

/* 600 */
@media (min-width:600px){
  .wrap{padding:0 28px}
  .hero{padding:52px 0 60px}
  .hero h1{font-size:62px}
  .entry-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
  .steps{grid-template-columns:repeat(3,minmax(0,1fr))}
  .quotes{grid-template-columns:repeat(2,minmax(0,1fr))}
  .facts{grid-template-columns:repeat(4,auto);max-width:640px}
  .sec{padding:56px 0 62px}
  .cta{padding:44px 30px 46px}
}

/* 700 */
@media (min-width:700px){
  .list{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:36px}
}

/* 900 */
@media (min-width:900px){
  .menu{display:flex}
  .burger{display:none}
  .hero-row{grid-template-columns:minmax(0,1fr) 260px;gap:52px}
  .hero h1{font-size:72px}
  .zig{grid-template-columns:240px minmax(0,1fr);gap:40px}
  .list{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:40px}
  .cta-in{grid-template-columns:minmax(0,1fr) auto;gap:30px}
  .cta-act{align-items:flex-end}
  .sec-head h2{font-size:29px}
}