/* 囧次元漫画 / 阅读刻度 · 冷白 + 靛蓝，黑体 + 等宽数字，16px 圆角，首屏统计维度表 */
:root{
  --bg:#EDF1F6; --bg2:#F6F8FB; --card:#FFFFFF; --ink:#17243C;
  --dim:#5C6C86; --line:#D9E0EA; --accent:#2A4FC8; --mark:#D8262C; --deep:#101A2E;
  --w:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg2);color:var(--ink);font:15px/1.75 "Microsoft YaHei","PingFang SC",sans-serif;font-variant-numeric:tabular-nums}
img{max-width:100%}
a{color:inherit;text-decoration:none}
.wrap{width:min(var(--w),calc(100% - 64px));margin:0 auto}
h1,h2,h3,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}

/* 顶栏 */
.top{position:sticky;top:0;z-index:10;background:rgba(246,248,251,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
.top-in{height:74px;display:flex;align-items:center;gap:34px}
.brand{display:flex;align-items:center;gap:11px;font-size:17px;font-weight:800;letter-spacing:-.01em}
.brand img{border-radius:8px;flex:none}
.nav{display:flex;gap:30px;margin-left:auto;font-size:14px;color:var(--dim)}
.nav a:hover{color:var(--accent)}
.btn{height:46px;padding:0 24px;border-radius:16px;font-size:14px;font-weight:700;align-items:center;justify-content:center;border:1px solid transparent;cursor:pointer;white-space:nowrap}
.btn:not([hidden]){display:inline-flex}
.btn-p{background:var(--accent);color:#fff}
.btn-p:hover{background:#1F3EA8}
.btn-g{border-color:#C6D0E0;color:var(--ink);background:transparent}
.btn-g:hover{border-color:var(--accent);color:var(--accent)}
.top-cta{height:40px;padding:0 20px;font-size:13px}

/* 首屏：左文右统计维度表 */
.hero{background:var(--bg2);padding:100px 0 106px;border-bottom:1px solid var(--line)}
.hero-in{display:grid;grid-template-columns:minmax(0,1fr) 460px;gap:64px;align-items:center}
.kick{font:11px/1.4 Consolas,"Microsoft YaHei",monospace;letter-spacing:.2em;color:var(--accent);text-transform:uppercase}
.hero h1{font-size:clamp(40px,4.6vw,58px);line-height:1.18;font-weight:800;letter-spacing:-.04em;margin:22px 0 18px}
.lead{font-size:16px;line-height:1.9;color:var(--dim);max-width:580px}
.acts{display:flex;gap:12px;margin:30px 0 22px;flex-wrap:wrap}
.hero-note{font-size:13px;color:var(--dim);letter-spacing:.03em}
.dim-wrap{background:var(--card);border:1px solid var(--line);border-top:3px solid var(--accent);border-radius:16px;padding:26px 26px 22px;box-shadow:0 22px 44px -34px rgba(20,40,90,.7)}
.dim-cap{font:11px Consolas,"Microsoft YaHei",monospace;letter-spacing:.18em;color:var(--accent);margin-bottom:18px;text-transform:uppercase}
.dim-table{display:grid;grid-template-columns:1.25fr 1fr 1fr 1.15fr;border-top:1px solid var(--line)}
.dim-row{display:grid;grid-template-columns:1.25fr 1fr 1fr 1.15fr;grid-column:1/-1;border-bottom:1px solid var(--line)}
.dim-row span{padding:11px 6px;font-size:13px;color:var(--ink);border-left:1px solid var(--line);text-align:center;white-space:nowrap}
.dim-row span:first-child{border-left:0;text-align:left;font-weight:700}
.dim-head span{font-size:12px;color:var(--dim);font-weight:700}
.dim-note{font-size:12.5px;color:var(--dim);margin-top:16px}

/* 通用区块 */
.sec{padding:112px 0;background:var(--card)}
.sec-alt{background:var(--bg);background-image:repeating-linear-gradient(90deg,rgba(42,79,200,.055) 0,rgba(42,79,200,.055) 1px,transparent 1px,transparent 8.333%)}
.sec-kick{font:11px/1.4 Consolas,"Microsoft YaHei",monospace;letter-spacing:.2em;color:var(--accent);text-transform:uppercase;margin-bottom:16px}
.sec h2,.dl h2{font-size:36px;line-height:1.3;font-weight:800;letter-spacing:-.03em;margin-bottom:14px}
.sec-p{font-size:15px;color:var(--dim);max-width:680px;margin-bottom:42px}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.card{background:var(--bg2);border:1px solid var(--line);border-radius:16px;padding:28px 26px 30px;box-shadow:0 18px 34px -30px rgba(20,40,90,.7)}
.ico{width:42px;height:42px;border-radius:12px;background:#E3E9FA;color:var(--accent);display:flex;align-items:center;justify-content:center;font:13px Consolas,monospace;margin-bottom:22px}
.card b{display:block;font-size:18px;margin-bottom:10px}
.card p{font-size:14px;line-height:1.9;color:var(--dim)}

/* 界面展示：栅格里的居中框 */
.shots-in{display:grid;grid-template-columns:minmax(0,1fr) 420px;gap:56px;align-items:center}
.shots-copy{background:var(--card);border-radius:16px;padding:34px 32px}
.shots-copy .sec-p{margin-bottom:24px}
.shots-fact{font-size:14px;line-height:1.9;color:var(--ink);border-left:3px solid var(--mark);padding-left:16px;margin-bottom:28px}
.tag-list{display:flex;flex-wrap:wrap;gap:9px}
.tag-list li{font-size:13px;color:var(--dim);border:1px solid var(--line);border-radius:6px;padding:6px 13px}
.viewer-wrap{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:32px 34px 24px;box-shadow:0 22px 44px -34px rgba(20,40,90,.7)}
.viewer{width:300px;margin:0 auto;position:relative}
.phone{background:var(--deep);border-radius:24px;padding:8px;box-shadow:0 26px 50px -32px rgba(16,26,46,.9)}
.track{display:flex;overflow-x:auto;overscroll-behavior-x:contain;scroll-snap-type:x mandatory;scrollbar-width:none;border-radius:18px}
.track::-webkit-scrollbar{display:none}
.slide{flex:0 0 100%;margin:0;scroll-snap-align:center}
.slide img{display:block;width:100%;height:auto;border-radius:18px;pointer-events:none}
.arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:2;width:32px;height:32px;border-radius:8px;background:#fff;border:1px solid var(--line);color:var(--ink);font-size:17px;line-height:1;cursor:pointer;padding:0;box-shadow:0 8px 18px -10px rgba(20,40,90,.7)}
.arrow:not([hidden]){display:flex;align-items:center;justify-content:center}
.arrow.prev{left:-50px}
.arrow.next{right:-50px}
.arrow:disabled{opacity:.3;cursor:default}
.bar{margin-top:18px;display:flex;flex-direction:column;align-items:center;gap:10px}
.dots{display:flex;gap:7px}
.dots button{width:8px;height:8px;padding:0;border:0;border-radius:2px;background:#C9D3E6;cursor:pointer}
.dots button[aria-current="true"]{background:var(--accent);width:22px}
.now{font-size:13px;color:var(--dim)}
.rail{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;margin-top:18px}
.rail span{height:3px;border-radius:2px;background:#DCE3EF}
.rail span:first-child{background:var(--accent)}

/* 下载区：靛蓝整幅 */
.dl{background:var(--accent);color:#fff;padding:110px 0}
.dl .sec-kick{color:#C4D2FF}
.dl-sub{font-size:15px;color:#DCE5FF;margin-bottom:38px}
.dl-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px}
.dl-item{background:#fff;color:var(--ink);border-radius:16px;padding:20px 22px;gap:16px;align-items:center;box-shadow:0 16px 30px -24px rgba(10,25,90,.8)}
.dl-item:not([hidden]){display:flex}
.dl-item:hover{background:#F2F5FF}
.dl-ico{width:46px;height:46px;border-radius:12px;background:#E3E9FA;color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;flex:none}
.dl-txt{display:flex;flex-direction:column;min-width:0}
.dl-txt b{font-size:16px}
.dl-txt small{font-size:12.5px;color:var(--dim);line-height:1.6}
.dl-ar{margin-left:auto;font-size:18px;color:var(--accent)}
.dl-check{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 30px;margin-top:34px;font-size:13.5px;color:#E4EBFF}
.dl-check li{padding-left:20px;position:relative}
.dl-check li::before{content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:2px;background:#fff}
.dl:not(:has(.dl-item:not([hidden]))){display:none}
.no-dl .dl{display:none}
.no-dl .top-cta{display:none}

/* 安装步骤：编号长条 */
.step-list{display:grid;grid-template-columns:1fr;border-top:1px solid var(--line)}
.step-list li{display:grid;grid-template-columns:80px 180px minmax(0,1fr);gap:24px;align-items:center;padding:22px 10px;border-bottom:1px solid var(--line)}
.step-n{font:20px Consolas,monospace;color:var(--accent)}
.step-list b{font-size:19px}
.step-list p{font-size:14px;line-height:1.9;color:var(--dim)}

/* 问答 */
.faq-list{max-width:840px;border-top:1px solid var(--line)}
.faq-list details{border-bottom:1px solid var(--line);padding:20px 0}
.faq-list summary{font-size:16px;font-weight:700;cursor:pointer;list-style:none;position:relative;padding-right:32px}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{content:"+";position:absolute;right:4px;top:0;color:var(--accent);font-size:20px;font-weight:400}
.faq-list details[open] summary::after{content:"−"}
.faq-list p{font-size:14px;line-height:1.9;color:var(--dim);padding-top:12px}

/* 页脚 */
.foot{background:var(--deep);color:#EDF1F8;padding:76px 0 26px}
.foot-in{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:44px}
.foot-brand{display:flex;align-items:center;gap:12px;font-size:17px;margin-bottom:16px}
.foot-brand img{border-radius:9px}
.foot-col p{font-size:13px;line-height:1.9;color:#A6B4CC;max-width:290px}
.foot-col>b{display:block;font-size:14px;margin-bottom:16px}
.foot-col a{display:block;font-size:13px;color:#A6B4CC;padding:5px 0}
.foot-col a:hover{color:#fff}
.foot-bot{display:flex;justify-content:space-between;gap:20px;margin-top:54px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);font-size:12px;color:#8292B0}

/* 404 */
.nf-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg2);text-align:center}
.nf-in{padding:60px 24px}
.nf-logo{border-radius:18px;margin-bottom:26px}
.nf-code{font:13px Consolas,monospace;letter-spacing:.3em;color:var(--accent)}
.nf-in h1{font-size:38px;margin:14px 0 12px}
.nf-p{font-size:15px;color:var(--dim);margin-bottom:28px}
.nf-small{font-size:12px;color:var(--dim);margin-top:34px}

@media (max-width:1000px){
  .hero-in,.shots-in{grid-template-columns:1fr;gap:42px}
  .dim-wrap{max-width:520px}
  .viewer-wrap{justify-self:center;width:min(100%,440px)}
  .grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-in{grid-template-columns:repeat(2,1fr)}
  .sec-alt{background-image:none}
}
@media (max-width:760px){
  .wrap{width:min(100% - 36px,var(--w))}
  .top-in{height:64px;gap:16px}
  .nav{display:none}
  .brand{font-size:15px}
  .top-cta{margin-left:auto}
  .hero{padding:64px 0 72px}
  .hero h1{font-size:42px;margin:16px 0}
  .lead{font-size:15px}
  .lead br{display:none}
  .hero-note{font-size:12px}
  .dim-wrap{padding:20px 16px 18px}
  .dim-row span{font-size:11px;padding:9px 3px}
  .dim-head span{font-size:10.5px}
  .sec,.dl{padding:74px 0}
  .sec h2,.dl h2{font-size:29px}
  .grid{grid-template-columns:1fr}
  .shots-copy{padding:24px 20px}
  .viewer-wrap{width:100%;padding:26px 16px 20px}
  .viewer{width:240px}
  .arrow:not([hidden]){display:none}
  .dl-check{grid-template-columns:1fr}
  .step-list li{grid-template-columns:52px minmax(0,1fr);gap:8px 14px;padding:20px 0}
  .step-list p{grid-column:1/-1}
  .foot-in{grid-template-columns:1fr;gap:30px}
  .foot-bot{flex-direction:column;gap:6px;margin-top:36px}
}