/* 漫蛙4 · mw4app.com.cn
   暖白 + 墨绿，杂志式分栏；白卡 + 18px 圆角 + 极轻阴影 */

:root{
  --bg:#FBFAF7;
  --card:#FFFFFF;
  --ink:#16211C;
  --body:#4C5751;
  --dim:#8B948E;
  --line:#E7E4DA;
  --brand:#14533F;
  --brand-d:#0E3A2C;
  --brand-l:#1E7A5A;
  --tint:#EEF3EF;
  --w:1180px;
  --r:18px;
  --sh:0 14px 34px -22px rgba(22,46,36,.42);
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--body);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:15.5px;line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.02em}
p{margin:0}
a{color:inherit}
.wrap{max-width:var(--w);margin:0 auto;padding:0 32px}
.skip{
  position:absolute;left:-9999px;top:0;padding:10px 16px;
  background:var(--brand);color:#fff;z-index:99;text-decoration:none;
}
.skip:focus{left:12px;top:12px}

/* ---------- 顶栏 ---------- */
.top{
  position:sticky;top:0;z-index:50;
  background:rgba(251,250,247,.92);
  backdrop-filter:saturate(1.4) blur(10px);
  border-bottom:1px solid var(--line);
}
.top-in{display:flex;align-items:center;gap:28px;height:68px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.brand img{width:30px;height:30px;border-radius:8px}
.brand b{font-size:16px;font-weight:800;letter-spacing:-.01em}
.top nav{margin-left:auto;display:flex;gap:30px}
.top nav a{
  font-size:14px;color:var(--body);text-decoration:none;
  padding:4px 0;position:relative;
}
.top nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform .22s;
}
.top nav a:hover{color:var(--ink)}
.top nav a:hover::after{transform:scaleX(1)}
.top-cta{
  margin-left:8px;height:40px;padding:0 20px;border-radius:10px;
  background:var(--brand);color:#fff;text-decoration:none;
  font-size:14px;font-weight:700;white-space:nowrap;
  display:inline-flex;align-items:center;
  transition:background .18s,transform .18s;
}
.top-cta:hover{background:var(--brand-l);transform:translateY(-1px)}
.top.on{box-shadow:0 8px 24px -20px rgba(20,40,30,.5)}

/* ---------- 首屏 ---------- */
.hero{padding:76px 0 84px}
.hero-in{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,470px);
  gap:56px;align-items:center;
}
.kick{
  font-size:12px;letter-spacing:.18em;font-weight:700;
  color:var(--brand-l);text-transform:uppercase;
}
.hero h1{
  margin-top:16px;
  font-size:clamp(38px,4.6vw,58px);line-height:1.16;font-weight:800;
}
.lead{margin-top:20px;font-size:16px;line-height:1.95;max-width:24em}
.acts{margin-top:30px;display:flex;flex-wrap:wrap;gap:12px}
.btn{
  height:50px;padding:0 26px;border-radius:11px;
  font-size:15px;font-weight:700;text-decoration:none;
  border:1px solid transparent;white-space:nowrap;cursor:pointer;
  transition:background .18s,border-color .18s,transform .16s,color .18s;
}
.btn:not([hidden]){display:inline-flex;align-items:center;justify-content:center}
.btn.btn-p{background:var(--brand);color:#fff}
.btn.btn-p:hover{background:var(--brand-l);transform:translateY(-1px)}
.btn.btn-s{background:#fff;color:var(--ink);border-color:var(--line)}
.btn.btn-s:hover{border-color:#CFCBBE;transform:translateY(-1px)}
.meta{
  list-style:none;display:flex;flex-wrap:wrap;margin:26px 0 0;padding:0;
  font-size:13px;color:var(--dim);
}
.meta li{padding:0 14px;border-left:1px solid var(--line)}
.meta li:first-child{padding-left:0;border-left:0}

/* 右侧舞台 */
.hero-r{min-width:0}
.stage{
  position:relative;
  background:radial-gradient(120% 90% at 70% 8%, #F3F7F2 0%, #E7EFE8 46%, #DDE8DE 100%);
  border-radius:30px;
  padding:52px 34px 52px;
  overflow:hidden;
}
.phone{
  width:318px;margin:0 auto;
  background:#111C17;border-radius:34px;padding:9px;
  box-shadow:0 30px 60px -34px rgba(10,30,22,.65);
}
.phone img{border-radius:26px;width:100%;height:auto}

/* ---------- 区块通用 ---------- */
.sec{padding:92px 0}
.sec-tint{background:var(--tint)}
.sec-h{max-width:36em;margin:0 auto 46px;text-align:center}
.sec-h h2{
  margin-top:12px;font-size:clamp(26px,2.7vw,36px);
  line-height:1.3;font-weight:800;
}
.sec-h .sub{margin-top:12px;font-size:14.5px;color:var(--dim)}

/* ---------- 功能六宫格 ---------- */
.feat{
  list-style:none;margin:0;padding:0;
  display:grid;grid-template-columns:repeat(3,1fr);gap:22px;
}
.feat li{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  padding:26px 26px 24px;box-shadow:var(--sh);
  transition:transform .2s,box-shadow .2s;
}
.feat li:hover{transform:translateY(-3px);box-shadow:0 20px 40px -24px rgba(22,46,36,.5)}
.ico{
  width:44px;height:44px;border-radius:12px;background:var(--tint);
  display:flex;align-items:center;justify-content:center;
}
.ico svg{
  width:22px;height:22px;fill:none;stroke:var(--brand);
  stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;
}
.feat h3{margin-top:16px;font-size:16.5px;font-weight:800}
.feat p{margin-top:8px;font-size:14px;line-height:1.85;color:var(--body)}

/* ---------- 界面截图 ---------- */
.shots{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.shots figure{margin:0}
.dev{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:10px;box-shadow:var(--sh);
}
.dev img{border-radius:10px;width:100%;height:auto}
.shots figcaption{margin-top:12px;font-size:13px;text-align:center}
.shots figcaption b{color:var(--ink);font-weight:700}
.shots figcaption span{color:var(--dim);margin-left:8px}

/* ---------- 下载区 ---------- */
.dl{background:var(--brand-d);color:#D9E6DF;padding:80px 0}
.dl-in{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,520px);
  gap:56px;align-items:center;
}
.dl h2{color:#fff;font-size:clamp(26px,2.7vw,34px);font-weight:800}
.dl-p{margin-top:14px;font-size:14.5px;line-height:1.9;color:#B7CEC3;max-width:26em}
.stores{margin-top:26px;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.store{
  background:#0A2A20;border:1px solid #1D5243;border-radius:13px;
  padding:12px 18px 12px 15px;
  text-decoration:none;color:#fff;
  transition:background .18s,border-color .18s,transform .16s;
}
.store:not([hidden]){display:flex;align-items:center;gap:12px}
.store:hover{background:#0F3B2D;border-color:#2A6B57;transform:translateY(-1px)}
.store svg{
  width:24px;height:24px;flex:none;fill:none;stroke:#8FD3B6;
  stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;
}
.store b{display:block;font-size:14.5px;font-weight:700;line-height:1.4}
.store i{display:block;font-style:normal;font-size:11.5px;color:#8FB2A4;line-height:1.5}
.stores:not(:has(.store:not([hidden]))){display:none}
.dl-alt{
  margin-top:14px;font-size:13.5px;color:#9CC4B4;text-decoration:none;
  transition:color .18s;
}
.dl-alt:not([hidden]){display:inline-flex;align-items:center;gap:7px}
.dl-alt svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.dl-alt:hover{color:#D6EDE3}
.checks{list-style:none;margin:26px 0 0;padding:22px 0 0;border-top:1px solid #1D5243}
.checks li{
  position:relative;padding-left:26px;font-size:13.5px;color:#B7CEC3;
  line-height:1.9;
}
.checks li::before{
  content:"";position:absolute;left:0;top:7px;width:14px;height:8px;
  border-left:2px solid #4FB98A;border-bottom:2px solid #4FB98A;
  transform:rotate(-45deg);
}
.dl:not(:has(.store:not([hidden]))) .checks,
.dl:not(:has(.store:not([hidden]))) .dl-p{display:none}
.wall{display:flex;align-items:center;justify-content:center;padding:6px 0}
.wall-c{
  background:#0A2A20;border-radius:16px;padding:7px;
  box-shadow:0 24px 44px -28px rgba(0,0,0,.85);
  flex:0 0 auto;width:164px;
}
.wall-c img{width:100%;height:auto;border-radius:9px}
.wall-c:nth-child(1){transform:rotate(-6deg) translateX(26px);z-index:1}
.wall-c:nth-child(2){transform:translateY(-12px);z-index:3}
.wall-c:nth-child(3){transform:rotate(6deg) translateX(-26px);z-index:2}

/* ---------- 安装步骤 ---------- */
.steps{
  list-style:none;margin:0;padding:0;
  display:grid;grid-template-columns:repeat(3,1fr);gap:28px;
}
.steps li{border-top:2px solid var(--ink);padding-top:20px}
.steps .n{font-size:12px;font-weight:800;letter-spacing:.16em;color:var(--brand-l)}
.steps h3{margin-top:10px;font-size:17px;font-weight:800}
.steps p{margin-top:10px;font-size:14px;line-height:1.85}

/* ---------- 问答 ---------- */
.faq{max-width:820px;margin:0 auto}
.faq details{
  background:#fff;border:1px solid var(--line);border-radius:13px;
  padding:0 22px;margin-bottom:12px;box-shadow:var(--sh);
}
.faq summary{
  list-style:none;cursor:pointer;padding:18px 0;
  font-size:15px;font-weight:700;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"";width:9px;height:9px;flex:none;
  border-right:2px solid var(--dim);border-bottom:2px solid var(--dim);
  transform:rotate(45deg) translateY(-2px);transition:transform .2s;
}
.faq details[open] summary::after{transform:rotate(-135deg) translateY(-2px)}
.faq p{padding:0 0 20px;font-size:14px;line-height:1.9;color:var(--body);max-width:52em}

/* ---------- 页脚 ---------- */
.ft{background:#fff;border-top:1px solid var(--line);padding:56px 0 0}
.ft-in{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;
  padding-bottom:42px;
}
.ft-b p{margin-top:14px;font-size:13.5px;line-height:1.85;color:var(--dim);max-width:26em}
.ft-c h4{font-size:13px;font-weight:800;color:var(--ink);letter-spacing:.04em}
.ft-c a,.ft-c span{
  display:block;margin-top:10px;font-size:13.5px;
  color:var(--dim);text-decoration:none;
}
.ft-c a:hover{color:var(--brand)}
.ft-bar{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding-top:20px;padding-bottom:26px;
  font-size:12.5px;color:var(--dim);
}

/* ---------- 404 ---------- */
.nf-page{background:var(--bg)}
.nf-page .top-cta{margin-left:auto}
.nf{padding:88px 0 96px;min-height:58vh;display:flex;align-items:center}
.nf-in{width:100%;max-width:660px;margin:0 auto;text-align:center}
.nf h1{margin-top:16px;font-size:clamp(32px,4vw,46px);line-height:1.2;font-weight:800}
.nf .lead{margin:18px auto 0;max-width:34em}
.nf-acts{margin-top:32px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.nf-note{margin-top:40px;font-size:12.5px;color:var(--dim);letter-spacing:.04em}

/* ---------- 窄屏 ---------- */
@media (max-width:960px){
  .wrap{padding:0 22px}
  .top nav{display:none}
  .top-cta{margin-left:auto}
  .hero{padding:52px 0 60px}
  .hero-in{grid-template-columns:1fr;gap:40px}
  .lead{max-width:none}
  .phone{width:262px}
  .sec{padding:64px 0}
  .sec-h{margin-bottom:32px}
  .feat{grid-template-columns:1fr 1fr;gap:14px}
  .feat li{padding:20px 18px}
  .shots{grid-template-columns:1fr 1fr;gap:14px}
  .dl{padding:60px 0}
  .dl-in{grid-template-columns:1fr;gap:40px}
  .wall-c{width:120px}
  .steps{grid-template-columns:1fr;gap:22px}
  .ft-in{grid-template-columns:1fr 1fr;gap:26px}
  .ft-b{grid-column:1 / -1}
}
@media (max-width:560px){
  .feat{grid-template-columns:1fr}
  .btn{width:100%}
  .acts{gap:10px}
  .store{min-width:0;flex:1 1 100%}
  .meta li{padding:0 10px;font-size:12.5px}
  .ft-in{grid-template-columns:1fr}
}