*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#000;
  --base:#F8E9E9;
  --panel:#F1DEDE;
  --ink:#261D1F;
  --dim:rgba(38,29,31,.66);
  --line:#8A7564;
  --seal:#C8551A;
  --hair:rgba(138,117,100,.42);
  --dark:#1A1315;
}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--ink);
  font:15px/1.85 "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}

/* ---------- 顶栏 ---------- */
header{
  position:fixed;top:0;left:0;right:0;height:80px;z-index:80;
  background:rgba(8,6,6,.78);
  -webkit-backdrop-filter:saturate(150%) blur(16px);
  backdrop-filter:saturate(150%) blur(16px);
  border-bottom:1px solid rgba(138,117,100,.28);
}
.bar{max-width:1200px;height:80px;margin:0 auto;padding:0 32px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--base)}
.brand img{height:30px;width:auto}
nav{display:flex;gap:30px}
nav a{font-size:14px;color:rgba(248,233,233,.66)}
nav a:hover{color:var(--seal)}
.btn{display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 22px;border-radius:10px;font-size:14px;font-weight:600;transition:.2s}
.btn.solid{background:var(--seal);color:#FFF4EE}
.btn.solid:hover{filter:brightness(1.08)}
.btn.ghost{border:1px solid var(--hair);color:var(--ink)}
.btn.ghost:hover{border-color:var(--seal);color:var(--seal)}

/* ---------- 通用 ---------- */
.sec{max-width:1200px;margin:0 auto;padding:84px 32px}
.eyebrow{font-size:12px;letter-spacing:.26em;color:var(--line)}
.head{display:flex;align-items:center;gap:14px;margin-bottom:10px}
h1{font-size:44px;line-height:1.25}
h2{font-size:32px;line-height:1.35}
h3{font-size:18px}
.lead{color:var(--dim);font-size:16px;max-width:52ch}
.sub{color:var(--dim);max-width:64ch;margin-top:10px}
main{padding-top:80px}

/* ---------- 飞轮 ---------- */
.fly{
  position:relative;width:30px;height:30px;flex:none;border-radius:50%;
  background:repeating-conic-gradient(from 0deg,var(--seal) 0deg 5deg,transparent 5deg 30deg);
  box-shadow:inset 0 0 0 3px var(--line);
}
.fly::after{content:"";position:absolute;inset:10px;border-radius:50%;background:var(--ink)}
.fly.lg{width:56px;height:56px}
.fly.lg::after{inset:19px}

/* ---------- 面板卡 ---------- */
.card{position:relative;background:var(--base);border:1px solid var(--hair);border-radius:12px;padding:24px 22px}
.card::before{content:"";position:absolute;left:14px;right:14px;top:0;height:2px;background:linear-gradient(90deg,var(--seal),transparent)}
.card p{color:var(--dim);font-size:14px}
.card .ic{margin-bottom:12px}

/* ---------- Hero ---------- */
.hero{max-width:1200px;margin:0 auto;padding:64px 32px;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.wordmark{width:min(360px,100%);margin:18px 0 4px}
.cta{display:flex;gap:14px;margin-top:26px;flex-wrap:wrap}

/* ---------- 三折页 ---------- */
.tri{display:grid;grid-template-columns:repeat(3,1fr);background:var(--panel);border:1px solid var(--hair);border-radius:12px;overflow:hidden}
.panel{position:relative;min-height:352px;padding:22px 20px 40px;border-left:1px dashed rgba(138,117,100,.55)}
.panel:first-child{border-left:0}
.panel.fold2::before,.panel.fold3::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:22px;
  background:linear-gradient(90deg,rgba(38,29,31,.16),rgba(38,29,31,0));
}
.panel .foldno{position:absolute;left:16px;bottom:14px;font-size:11px;letter-spacing:.24em;color:var(--line)}
.panel h3{font-size:20px;margin-bottom:14px}
.frow{display:flex;gap:10px;align-items:baseline;padding:8px 0;border-bottom:1px dashed rgba(138,117,100,.4);font-size:13px;color:var(--dim)}
.frow b{color:var(--ink);font-weight:600}
.frow:last-of-type{border-bottom:0}

/* ---------- 状态 / 下载 ---------- */
.slots{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--hair);border:1px solid var(--hair);border-radius:12px;overflow:hidden;margin-top:22px}
.slot{background:var(--base);padding:18px 16px}
.slot b{display:block;font-size:16px}
.slot span{font-size:12px;letter-spacing:.18em;color:var(--line)}
.actline{display:flex;align-items:center;gap:18px;margin-top:22px;flex-wrap:wrap}
.note{font-size:12px;color:var(--dim)}

/* ---------- 行表 ---------- */
.rows{border-top:1px solid var(--hair);margin-top:22px}
.row{display:grid;grid-template-columns:96px 1fr;gap:18px;padding:16px 0;border-bottom:1px solid var(--hair)}
.row .no{font-size:12px;letter-spacing:.2em;color:var(--line);padding-top:4px}
.row .tx{color:var(--dim)}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:12px;margin-top:22px}
details{background:var(--base);border:1px solid var(--hair);border-radius:12px;padding:0 20px}
details summary{cursor:pointer;list-style:none;padding:18px 0;font-weight:600;display:flex;justify-content:space-between;gap:16px}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"+";color:var(--seal)}
details[open] summary::after{content:"−"}
details p{padding:0 0 18px;color:var(--dim);font-size:14px}

/* ---------- 栅格 ---------- */
.g4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:28px}
.g3{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:28px}
.g3 .no{font-size:12px;letter-spacing:.24em;color:var(--seal);margin-bottom:8px}
.g3 p{font-size:14px;color:var(--dim)}

/* ---------- 场景 ---------- */
.scene{background:var(--panel);border-top:1px solid var(--hair);border-bottom:1px solid var(--hair)}
.scene .card{background:#FBF1F1}
.sc-tag{display:inline-block;font-size:12px;letter-spacing:.18em;color:var(--seal);border:1px solid rgba(200,85,26,.4);border-radius:999px;padding:3px 12px;margin-bottom:10px}
.res{margin-top:12px;font-size:14px;color:var(--ink);border-left:2px solid var(--line);padding-left:12px}

/* ---------- 对比表 ---------- */
.tbox{border:1px solid var(--hair);border-radius:12px;background:var(--base);overflow-x:auto;margin-top:26px}
table{width:100%;min-width:720px;border-collapse:collapse}
th,td{padding:16px 20px;text-align:left;border-bottom:1px solid var(--hair);font-size:14px}
thead th{background:var(--panel);font-size:13px;letter-spacing:.14em;color:var(--line)}
tbody td:last-child{color:var(--dim)}
tbody tr:last-child td{border-bottom:0}
th:nth-child(2){color:var(--seal)}

/* ---------- 无图标纯文字 ---------- */
.plain{max-width:760px;margin:0 auto;border-left:2px solid var(--line);padding:6px 0 6px 22px}
.plain p{color:var(--dim);margin-bottom:14px}
.plain p:last-child{margin-bottom:0}

/* ---------- 反色结尾 ---------- */
.rev{background:var(--dark);color:var(--base);border-top:1px solid var(--hair);border-bottom:1px solid var(--hair);padding:80px 32px}
.rev .inner{max-width:1200px;margin:0 auto;text-align:center}
.rev h2{font-size:34px;max-width:24ch;margin:14px auto 0}
.rev .eyebrow{color:var(--seal)}
.rev .slots{margin-top:30px}
.rev .slot{background:#241A1C;color:var(--base)}
.rev .slot span{color:var(--line)}
.rev .slot b{color:var(--base)}
.rev .note{color:rgba(248,233,233,.6)}

/* ---------- 宣言条 ---------- */
.creed{background:var(--base);border-top:1px solid var(--hair);border-bottom:1px solid var(--hair);padding:78px 32px;text-align:center}
.creed h2{font-size:32px;max-width:24ch;margin:0 auto}
.creed .eyebrow{margin-bottom:14px}

/* ---------- 资讯 / 日志 ---------- */
.news{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:26px}
.micro{display:inline-block;font-size:11px;letter-spacing:.18em;color:var(--line);border:1px solid var(--hair);border-radius:4px;padding:2px 8px;margin-bottom:10px}
.logs{display:flex;flex-direction:column;gap:12px;margin-top:22px}
.log{display:grid;grid-template-columns:120px 1fr;gap:18px;padding:16px 20px;background:var(--base);border:1px solid var(--hair);border-radius:12px}
.log .v{color:var(--seal);font-size:13px;letter-spacing:.1em}
.log p{font-size:14px;color:var(--dim)}

/* ---------- 竖屏产品图 ---------- */
.phone{width:min(300px,100%);border-radius:26px;border:1px solid var(--hair);overflow:hidden;background:#E8D5D5;padding:8px;box-shadow:0 24px 60px rgba(0,0,0,.55)}
.phone img{border-radius:20px;width:100%}
.shot{display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;margin-top:34px}

/* ---------- 底栏 ---------- */
footer{border-top:1px solid rgba(138,117,100,.28);padding:40px 32px;background:#0A0708}
.fbar{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;font-size:13px;color:rgba(248,233,233,.6)}
.fbar img{height:24px}
.fbar .brand{color:var(--base)}
.flinks{display:flex;gap:24px}
.flinks a:hover{color:var(--seal)}

/* ---------- 响应式 ---------- */
@media (max-width:1000px){
  .hero{grid-template-columns:1fr;gap:32px}
  .g4{grid-template-columns:repeat(2,1fr)}
  .g3,.news{grid-template-columns:1fr}
  h1{font-size:34px}
  h2{font-size:26px}
}
@media (max-width:640px){
  .sec{padding:60px 20px}
  .bar{padding:0 20px}
  nav{display:none}
  .g4{grid-template-columns:1fr}
  .tri{grid-template-columns:1fr}
  .panel{min-height:auto;border-left:0;border-top:1px dashed rgba(138,117,100,.55)}
  .slots{grid-template-columns:1fr}
  .row,.log{grid-template-columns:1fr;gap:6px}
  .shot{grid-template-columns:1fr}
}