/* roulang page: index */
:root{
  --bg:#FFF8F3;
  --surface:#FFFFFF;
  --warm:#FFF1EA;
  --ink:#241A2E;
  --ink-2:#5B4A63;
  --ink-3:#8B7A91;
  --line:#EADFD7;
  --coral:#EF5B6B;
  --coral-d:#C93E52;
  --mint:#1FA98A;
  --mint-l:#E3F6F0;
  --plum:#3A2745;
  --r-s:12px;
  --r-m:20px;
  --r-l:28px;
  --shadow:0 8px 24px rgba(36,26,46,.06);
  --shadow-h:0 14px 36px rgba(36,26,46,.10);
  --ease:cubic-bezier(.2,.8,.2,1);
  --pad-y:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16.5px;
  line-height:1.78;
  color:var(--ink);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--coral-d);text-decoration:underline}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink)}
:focus-visible{outline:3px solid rgba(31,169,138,.45);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
.section{padding:var(--pad-y) 0;border-top:1px solid var(--line)}
.section.alt{background:var(--bg)}
.section.plain{background:var(--surface)}
.section.dark{background:var(--plum);color:#FFF8F3;border-top:none}
.section.dark .sec-lead{color:rgba(255,248,243,.78)}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.06em;
  color:var(--coral-d);background:var(--warm);
  border:1px solid #F8D7CE;border-radius:999px;padding:6px 14px;
}
.section.dark .kicker{background:rgba(255,248,243,.1);border-color:rgba(255,248,243,.2);color:#FFD8D2}
h1{font-size:clamp(2rem,4.4vw,3.5rem);font-weight:700;line-height:1.15;letter-spacing:0}
h2{font-size:clamp(1.5rem,2.6vw,2.25rem);font-weight:700;line-height:1.25;margin-top:14px}
h3{font-size:1.15rem;font-weight:600;line-height:1.45}
.sec-head{max-width:760px;margin-bottom:40px}
.sec-lead{color:var(--ink-2);font-size:16px;margin-top:14px}
.hl{color:var(--coral-d)}
.hl-mint{color:var(--mint)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:14px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;text-decoration:none;
  transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--coral);color:#fff;box-shadow:0 6px 18px rgba(239,91,107,.28)}
.btn-primary:hover{background:var(--coral-d);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(201,62,82,.3)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--coral);color:var(--coral-d);transform:translateY(-1px)}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:12px}
.btn-block{width:100%}

.tag{
  display:inline-block;font-size:12px;font-weight:600;line-height:1;
  padding:6px 11px;border-radius:999px;background:var(--mint-l);color:#127a63;
}
.tag-coral{background:#FDE7E9;color:var(--coral-d)}
.tag-plum{background:#EFE7F3;color:#5A3F6B}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--bg);border-bottom:1px solid var(--line);
  transition:box-shadow .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(36,26,46,.07)}
.header-inner{
  display:grid;grid-template-columns:7fr 5fr;align-items:center;gap:24px;height:64px;
}
.header-left{display:flex;align-items:center;gap:28px;min-width:0}
.brand{display:inline-flex;align-items:center;gap:10px;min-width:0}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:11px;background:var(--coral);
  display:grid;place-items:center;box-shadow:0 4px 12px rgba(239,91,107,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.brand-main{font-size:15px;font-weight:700;white-space:nowrap}
.brand-sub{font-size:11px;color:var(--ink-3);white-space:nowrap}
.nav{display:flex;align-items:center;gap:22px}
.nav a{
  position:relative;font-size:14.5px;color:var(--ink-2);padding:6px 0;white-space:nowrap;
}
.nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--coral);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
.nav a:hover{color:var(--coral-d);text-decoration:none}
.nav a:hover::after,.nav a.is-active::after{transform:scaleX(1)}
.nav a.is-active{color:var(--ink);font-weight:600}
.header-actions{display:flex;align-items:center;justify-content:flex-end;gap:10px}
.icon-btn{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:var(--surface);
  display:grid;place-items:center;color:var(--ink-2);
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.icon-btn:hover{border-color:var(--coral);color:var(--coral-d);transform:translateY(-1px)}
.menu-btn{display:none}
.drawer{
  position:fixed;inset:0;z-index:80;background:var(--bg);
  padding:20px;display:none;flex-direction:column;overflow-y:auto;
}
.drawer.is-open{display:flex}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:24px}
.drawer-nav a{
  font-size:18px;padding:14px 4px;border-bottom:1px solid var(--line);color:var(--ink);
}
.drawer-nav a:hover{color:var(--coral-d);text-decoration:none}
.drawer-dl{border:1px solid var(--line);border-radius:var(--r-m);padding:18px;background:var(--surface)}
.drawer-dl h4{font-size:13px;color:var(--ink-3);font-weight:600;margin-bottom:12px}
.drawer-dl a{display:block;padding:10px 0;font-size:15px;border-bottom:1px dashed var(--line)}
.drawer-dl a:last-child{border-bottom:none}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:88px 0 76px}
.hero::before{
  content:"";position:absolute;top:-60px;right:-80px;width:520px;height:520px;
  background-image:radial-gradient(rgba(239,91,107,.5) 1.2px,transparent 1.2px);
  background-size:22px 22px;opacity:.13;pointer-events:none;
}
.hero::after{
  content:"";position:absolute;bottom:-140px;left:-120px;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(31,169,138,.35);opacity:.14;pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:6.2fr 5.8fr;gap:52px;align-items:center}
.hero-title{font-size:clamp(2rem,4.4vw,3.5rem)}
.hero-title .u{position:relative;white-space:nowrap}
.hero-title .u::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:10px;border-radius:6px;
  background:rgba(239,91,107,.18);z-index:-1;
}
.hero-lead{margin-top:22px;color:var(--ink-2);max-width:560px;font-size:16.5px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-dl-links{display:flex;flex-wrap:wrap;gap:8px 20px;margin-top:22px;font-size:13.5px;color:var(--ink-3)}
.hero-dl-links a{color:var(--ink-2);border-bottom:1px dashed var(--line);padding-bottom:2px}
.hero-dl-links a:hover{color:var(--coral-d);text-decoration:none;border-color:var(--coral)}
.hero-visual{position:relative}
.hero-figure{
  border-radius:var(--r-l);overflow:hidden;background:var(--warm);
  border:1px solid var(--line);box-shadow:var(--shadow);aspect-ratio:4/5;
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;color:var(--ink-2);
  background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:7px 12px;box-shadow:var(--shadow);
}
.chip svg{color:var(--mint)}
.hero-areas{
  display:flex;flex-wrap:wrap;gap:8px;margin-top:26px;padding-top:22px;border-top:1px dashed var(--line);
}
.hero-areas span{font-size:12.5px;color:var(--ink-3);align-self:center;margin-right:2px;font-weight:600}
.hero-areas a{
  font-size:13px;padding:7px 13px;border-radius:999px;background:var(--warm);
  border:1px solid #F5DDD3;color:var(--ink-2);
}
.hero-areas a:hover{background:var(--coral);border-color:var(--coral);color:#fff;text-decoration:none}

/* ---------- Bento metrics ---------- */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:20px}
.metric{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);padding:26px;
  box-shadow:var(--shadow);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.metric:hover{transform:translateY(-2px);border-color:#F6CFC5;box-shadow:var(--shadow-h)}
.metric-lg{grid-column:span 6;background:var(--plum);color:#FFF8F3;border-color:#4A3357}
.metric-lg .m-num{color:#FFB9B6}
.metric-md{grid-column:span 3}
.metric-sm{grid-column:span 4}
.m-num{font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--coral-d)}
.metric h3{margin-top:8px;font-size:1.2rem}
.metric-lg h3{color:#FFF8F3}
.metric p{margin-top:10px;font-size:14.5px;color:var(--ink-2)}
.metric-lg p{color:rgba(255,248,243,.8)}
.metric dl{margin-top:14px;display:grid;gap:8px}
.metric dl div{display:flex;gap:8px;font-size:13.5px;color:var(--ink-2);line-height:1.6}
.metric-lg dl div{color:rgba(255,248,243,.82)}
.metric dt{flex:0 0 auto;font-weight:600;color:var(--ink-3)}
.metric-lg dt{color:#FFB9B6}
.metric dd{margin:0}

/* ---------- Feature matrix ---------- */
.matrix{display:grid;grid-template-columns:repeat(12,1fr);gap:20px}
.fcard{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);padding:24px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.fcard:hover{transform:translateY(-2px);box-shadow:var(--shadow-h);border-color:#F6CFC5}
.fcard-wide{grid-column:span 6}
.fcard-sm{grid-column:span 3}
.f-icon{
  width:42px;height:42px;border-radius:12px;background:var(--warm);color:var(--coral-d);
  display:grid;place-items:center;margin-bottom:16px;
}
.fcard h3{font-size:1.1rem}
.fcard p{margin-top:8px;font-size:14.5px;color:var(--ink-2)}
.fcard ul{margin-top:12px;display:grid;gap:7px}
.fcard li{position:relative;padding-left:16px;font-size:13.5px;color:var(--ink-2);line-height:1.65}
.fcard li::before{content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;border-radius:50%;background:var(--mint)}

/* ---------- Compare ---------- */
.cmp{
  display:grid;grid-template-columns:150px repeat(4,minmax(0,1fr));
  border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden;background:var(--surface);
}
.cmp > div{padding:14px 16px;border-bottom:1px solid var(--line);border-right:1px solid var(--line);font-size:14px;color:var(--ink-2);line-height:1.65}
.cmp > div:nth-child(5n){border-right:none}
.cmp .cmp-corner{background:var(--warm);font-weight:600;color:var(--ink)}
.cmp .cmp-type{background:var(--warm);font-weight:600;color:var(--ink);font-size:14.5px}
.cmp .cmp-dim{background:#FFFDFB;font-weight:600;color:var(--ink);font-size:13.5px}
.cmp-last-row > div{border-bottom:none}
.cmp-stack{display:none;gap:16px}
.cmp-stack-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);padding:20px}
.cmp-stack-card h3{font-size:1.05rem;margin-bottom:12px}
.cmp-stack-card dl{display:grid;gap:9px}
.cmp-stack-card dl div{display:flex;gap:10px;font-size:14px;color:var(--ink-2)}
.cmp-stack-card dt{flex:0 0 84px;color:var(--ink-3);font-weight:600}

/* ---------- Milestones ---------- */
.miles{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;position:relative}
.mile{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);padding:22px;position:relative}
.mile-step{font-size:13px;font-weight:700;color:var(--coral-d);letter-spacing:.1em}
.mile h3{font-size:1.02rem;margin-top:8px}
.mile p{font-size:14px;color:var(--ink-2);margin-top:8px}
.mile::after{
  content:"";position:absolute;top:30px;right:-14px;width:10px;height:10px;
  border-top:2px solid var(--line);border-right:2px solid var(--line);transform:rotate(45deg);
}
.mile:last-child::after{display:none}

/* ---------- News / CMS ---------- */
.news-grid{display:grid;grid-template-columns:7fr 5fr;gap:28px;align-items:start}
.news-feature{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);overflow:hidden;
  box-shadow:var(--shadow);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  display:block;
}
.news-feature:hover{transform:translateY(-2px);box-shadow:var(--shadow-h);border-color:#F6CFC5;text-decoration:none}
.news-thumb{aspect-ratio:16/10;background:var(--warm);display:grid;place-items:center;color:var(--coral);overflow:hidden}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-body{padding:24px}
.news-body h3{font-size:1.3rem;margin-top:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-sum{margin-top:10px;font-size:14.5px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:14px;font-size:12.5px;color:var(--ink-3);display:flex;gap:12px;flex-wrap:wrap}
.news-list{display:grid;gap:14px}
.news-item{
  display:grid;grid-template-columns:96px 1fr;gap:14px;align-items:start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);padding:14px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.news-item:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:#F6CFC5;text-decoration:none}
.news-item .mini-thumb{
  aspect-ratio:1/1;border-radius:12px;background:var(--warm);display:grid;place-items:center;color:var(--coral);overflow:hidden;
}
.news-item .mini-thumb img{width:100%;height:100%;object-fit:cover}
.news-item h3{font-size:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item p{margin-top:6px;font-size:13px;color:var(--ink-3)}
.empty-state{
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-m);
  padding:36px 24px;text-align:center;color:var(--ink-3);font-size:14.5px;
}
.news-more{margin-top:24px}

/* ---------- Checklist ---------- */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.check-item{
  display:flex;gap:14px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);
  padding:20px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.check-item:hover{border-color:#BEE7DC;box-shadow:var(--shadow)}
.check-icon{flex:0 0 26px;width:26px;height:26px;border-radius:8px;background:var(--mint-l);display:grid;place-items:center;color:var(--mint)}
.check-item h3{font-size:1rem}
.check-item p{margin-top:6px;font-size:14px;color:var(--ink-2)}

/* ---------- Quick answers ---------- */
.qa-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.qa-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);padding:24px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.qa-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-h);border-color:#F6CFC5}
.qa-card h3{font-size:1.05rem}
.qa-card p{margin-top:10px;font-size:14.5px;color:var(--ink-2)}
.qa-card a{display:inline-block;margin-top:12px;font-size:13.5px;font-weight:600;color:var(--coral-d)}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:40px;align-items:start}
.faq-aside{position:sticky;top:88px}
.faq-aside h2{margin-top:14px}
.faq-aside p{margin-top:14px;color:var(--ink-2);font-size:15px}
.faq-list{display:grid;gap:12px}
.faq-list details{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.faq-list details[open]{background:var(--warm);border-color:#F2CFC4}
.faq-list summary{
  list-style:none;cursor:pointer;padding:18px 52px 18px 20px;position:relative;
  font-weight:600;font-size:15.5px;line-height:1.6;
}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{
  content:"";position:absolute;right:20px;top:50%;width:12px;height:12px;
  border-right:2px solid var(--coral-d);border-bottom:2px solid var(--coral-d);
  transform:translateY(-70%) rotate(45deg);transition:transform .2s var(--ease);
}
.faq-list details[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq-list .faq-a{padding:0 20px 20px;font-size:14.5px;color:var(--ink-2)}

/* ---------- Form ---------- */
.form-layout{display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:start}
.form-aside h2{margin-top:14px}
.form-aside ol{margin-top:20px;display:grid;gap:14px}
.form-aside li{display:flex;gap:12px;font-size:14.5px;color:var(--ink-2)}
.form-aside li span{
  flex:0 0 24px;height:24px;border-radius:8px;background:var(--warm);color:var(--coral-d);
  font-size:12.5px;font-weight:700;display:grid;place-items:center;
}
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);padding:28px;box-shadow:var(--shadow)}
.field{margin-bottom:18px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink-2);margin-bottom:8px}
.field input[type="text"],.field input[type="email"],.field select{
  width:100%;height:46px;padding:0 14px;border:1px solid var(--line);border-radius:12px;background:#FFFDFB;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--coral);box-shadow:0 0 0 4px rgba(31,169,138,.16);
}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.opts{display:flex;flex-wrap:wrap;gap:10px}
.opt{
  display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-2);
  border:1px solid var(--line);border-radius:999px;padding:9px 14px;background:#FFFDFB;cursor:pointer;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.opt:hover{border-color:var(--coral)}
.opt input{accent-color:var(--coral);width:15px;height:15px}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--ink-2);margin:18px 0 20px}
.consent input{margin-top:4px;width:16px;height:16px;accent-color:var(--coral)}
.form-note{margin-top:14px;font-size:12.5px;color:var(--ink-3)}

/* ---------- Download ---------- */
.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.dl-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);padding:28px;
  display:flex;flex-direction:column;gap:14px;position:relative;overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.dl-card::before{
  content:"";position:absolute;top:-40px;right:-40px;width:130px;height:130px;border-radius:50%;
  background:var(--warm);opacity:.7;
}
.dl-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-h);border-color:#F6CFC5}
.dl-icon{width:52px;height:52px;border-radius:16px;background:var(--warm);color:var(--coral-d);display:grid;place-items:center;position:relative}
.dl-card h3{font-size:1.15rem;position:relative}
.dl-card p{font-size:14px;color:var(--ink-2);position:relative}
.dl-card .btn{position:relative;margin-top:auto}
.dl-note{margin-top:20px;font-size:13px;color:var(--ink-3)}

/* ---------- Scenes ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:start}
.scene{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.scene:hover{transform:translateY(-2px);box-shadow:var(--shadow-h);border-color:#F6CFC5}
.scene-img{aspect-ratio:16/10;background:var(--warm);overflow:hidden}
.scene-img img{width:100%;height:100%;object-fit:cover}
.scene-body{padding:20px}
.scene-body h3{font-size:1.02rem}
.scene-body p{margin-top:8px;font-size:13.8px;color:var(--ink-2)}
.scene-tip{margin-top:12px;font-size:12.5px;color:#127a63;background:var(--mint-l);border-radius:10px;padding:8px 10px;line-height:1.6}
.scene-tall .scene-img{aspect-ratio:4/3}

/* ---------- Myths ---------- */
.myth-list{display:grid;gap:14px}
.myth{
  display:grid;grid-template-columns:64px 1fr;gap:18px;align-items:start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);padding:20px 22px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.myth:hover{border-color:#F6CFC5;box-shadow:var(--shadow)}
.myth-num{font-size:20px;font-weight:700;color:var(--coral);line-height:1.2}
.myth h3{font-size:1.02rem}
.myth p{margin-top:6px;font-size:14.5px;color:var(--ink-2)}

/* ---------- City ---------- */
.city-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.city-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);padding:24px}
.city-card h3{font-size:1.05rem}
.city-card p{margin-top:10px;font-size:14.5px;color:var(--ink-2)}
.city-card ul{margin-top:12px;display:grid;gap:7px}
.city-card li{position:relative;padding-left:16px;font-size:13.5px;color:var(--ink-2)}
.city-card li::before{content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;border-radius:50%;background:var(--coral)}

/* ---------- Footer ---------- */
.site-footer{background:var(--plum);color:#FFF8F3;padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:5fr 3fr 4fr;gap:36px}
.footer-brand{display:flex;gap:12px;align-items:flex-start}
.footer-mark{width:38px;height:38px;border-radius:12px;background:var(--coral);display:grid;place-items:center;flex:0 0 38px}
.footer-brand strong{display:block;font-size:15.5px;color:#FFF8F3}
.footer-brand span{display:block;font-size:12.5px;color:rgba(255,248,243,.6);margin-top:2px}
.footer-desc{margin-top:16px;font-size:14px;color:rgba(255,248,243,.72);max-width:340px}
.footer-domain{margin-top:12px;font-size:13px;color:rgba(255,248,243,.55);letter-spacing:.04em}
.footer-col h4{font-size:13px;font-weight:600;color:rgba(255,248,243,.6);margin-bottom:14px;letter-spacing:.04em}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,248,243,.85)}
.footer-col a:hover{color:#FFD8D2;text-decoration:none}
.footer-dl-item{display:flex;flex-direction:column;gap:2px;padding:10px 12px;border:1px solid rgba(255,248,243,.16);border-radius:12px;margin-bottom:10px;transition:border-color .2s var(--ease),background .2s var(--ease)}
.footer-dl-item:hover{border-color:rgba(255,248,243,.5);background:rgba(255,248,243,.06);text-decoration:none}
.footer-dl-item b{font-size:14px;color:#FFF8F3;font-weight:600}
.footer-dl-item span{font-size:12px;color:rgba(255,248,243,.55)}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,248,243,.14);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:12.5px;color:rgba(255,248,243,.55);
}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .nav{gap:16px}
  .header-left{gap:20px}
  .hero-grid{gap:36px;grid-template-columns:6fr 6fr}
  .metric-lg{grid-column:span 12}
  .metric-md{grid-column:span 6}
  .metric-sm{grid-column:span 4}
  .fcard-wide{grid-column:span 12}
  .fcard-sm{grid-column:span 6}
  .miles{grid-template-columns:repeat(3,1fr)}
  .mile:nth-child(3)::after{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-brand-block{grid-column:span 2}
}
@media (max-width:991px){
  :root{--pad-y:72px}
  .nav{display:none}
  .header-inner{grid-template-columns:1fr auto}
  .menu-btn{display:grid}
  .header-actions .btn-primary{display:none}
  .hero{padding:70px 0 60px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-visual{order:2}
  .hero-figure{aspect-ratio:16/11;max-width:560px}
  .hero-lead{max-width:none}
  .bento{gap:16px}
  .metric-md,.metric-sm{grid-column:span 6}
  .cmp{display:none}
  .cmp-stack{display:grid}
  .news-grid{grid-template-columns:1fr}
  .news-list{grid-template-columns:1fr}
  .faq-layout{grid-template-columns:1fr;gap:26px}
  .faq-aside{position:static}
  .form-layout{grid-template-columns:1fr;gap:26px}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .dl-grid{grid-template-columns:1fr}
  .check-grid{grid-template-columns:1fr}
  .qa-grid{grid-template-columns:1fr}
  .city-grid{grid-template-columns:1fr}
  .miles{grid-template-columns:repeat(2,1fr)}
  .mile::after{display:none}
}
@media (max-width:767px){
  :root{--pad-y:56px}
  body{font-size:16px}
  .hero{padding:56px 0 48px}
  .hero::before,.hero::after{display:none}
  .hero-title{font-size:clamp(1.9rem,7vw,2.4rem)}
  .hero-figure{aspect-ratio:4/3}
  .metric,.metric-md,.metric-sm{grid-column:span 12;padding:20px}
  .fcard-sm{grid-column:span 12}
  .scene-grid{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
  .form-card{padding:20px}
  .myth{grid-template-columns:1fr;gap:8px}
  .news-item{grid-template-columns:1fr}
  .news-item .mini-thumb{aspect-ratio:16/9}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-brand-block{grid-column:span 1}
  .footer-bottom{flex-direction:column;gap:8px}
  .hero-cta .btn{width:100%}
  .btn{min-height:44px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .bento{gap:14px}
  .hero-chips .chip{font-size:12px;padding:6px 10px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}

/* roulang page: article */
:root{
  --bg:#FFF8F3;
  --surface:#FFFFFF;
  --warm:#FFF1EA;
  --ink:#241A2E;
  --ink-2:#5B4A63;
  --ink-3:#8B7A91;
  --line:#EADFD7;
  --coral:#EF5B6B;
  --coral-d:#C93E52;
  --mint:#1FA98A;
  --mint-l:#E3F6F0;
  --plum:#3A2745;
  --r-s:12px;
  --r-m:20px;
  --r-l:28px;
  --shadow:0 8px 24px rgba(36,26,46,.06);
  --shadow-h:0 14px 36px rgba(36,26,46,.10);
  --ease:cubic-bezier(.2,.8,.2,1);
  --pad-y:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16.5px;
  line-height:1.78;
  color:var(--ink);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--coral-d);text-decoration:underline}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink)}
h1,h2,h3,h4{margin:0;line-height:1.25}
p{margin:0}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
.section{padding:var(--pad-y) 0;border-top:1px solid var(--line)}
.section.plain{background:var(--surface)}
.section.warm{background:var(--warm)}
.section.dark{background:var(--plum);color:#FFF8F3;border-top:none}
.section.dark .sec-lead{color:rgba(255,248,243,.78)}
.section.dark .kicker{background:rgba(255,248,243,.1);border-color:rgba(255,248,243,.2);color:#FFD8D2}
.sec-head{max-width:760px}
.kicker{
  display:inline-block;font-size:12px;font-weight:600;line-height:1;padding:7px 12px;
  border-radius:999px;background:#FDE7E9;color:var(--coral-d);border:1px solid #F8D3D7;
}
.sec-title{font-size:clamp(1.5rem,2.6vw,2.25rem);margin-top:14px}
.sec-lead{color:var(--ink-2);font-size:16px;margin-top:14px;max-width:740px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:14px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;text-decoration:none;
  transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn:hover{text-decoration:none}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(31,169,138,.35)}
.btn-primary{background:var(--coral);color:#fff;box-shadow:0 6px 18px rgba(239,91,107,.28)}
.btn-primary:hover{background:var(--coral-d);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(201,62,82,.3)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--coral);color:var(--coral-d);transform:translateY(-1px)}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:12px}
.tag{
  display:inline-block;font-size:12px;font-weight:600;line-height:1;
  padding:6px 11px;border-radius:999px;background:var(--mint-l);color:#127a63;
}
.tag-coral{background:#FDE7E9;color:var(--coral-d)}
.tag-plum{background:#EFE7F3;color:#5A3F6B}
/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--bg);border-bottom:1px solid var(--line);
  transition:box-shadow .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(36,26,46,.07)}
.header-inner{display:grid;grid-template-columns:7fr 5fr;align-items:center;gap:24px;height:64px}
.header-left{display:flex;align-items:center;gap:28px;min-width:0}
.brand{display:inline-flex;align-items:center;gap:10px;min-width:0}
.brand:hover{text-decoration:none}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:11px;background:var(--coral);
  display:grid;place-items:center;box-shadow:0 4px 12px rgba(239,91,107,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.brand-main{font-size:15px;font-weight:700;white-space:nowrap;color:var(--ink)}
.brand-sub{font-size:11px;color:var(--ink-3);white-space:nowrap}
.nav{display:flex;align-items:center;gap:22px}
.nav a{position:relative;font-size:14.5px;color:var(--ink-2);padding:6px 0;white-space:nowrap}
.nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--coral);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
.nav a:hover{color:var(--coral-d);text-decoration:none}
.nav a:hover::after,.nav a.is-active::after{transform:scaleX(1)}
.nav a.is-active{color:var(--ink);font-weight:600}
.header-actions{display:flex;align-items:center;justify-content:flex-end;gap:10px}
.icon-btn{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:var(--surface);
  display:grid;place-items:center;color:var(--ink-2);
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.icon-btn:hover{border-color:var(--coral);color:var(--coral-d);transform:translateY(-1px)}
.icon-btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(31,169,138,.35)}
.menu-btn{display:none}
.drawer{
  position:fixed;inset:0;z-index:80;background:var(--bg);
  padding:20px;display:none;flex-direction:column;overflow-y:auto;
}
.drawer.is-open{display:flex}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:24px}
.drawer-nav a{font-size:18px;padding:14px 4px;border-bottom:1px solid var(--line);color:var(--ink)}
.drawer-nav a:hover{color:var(--coral-d);text-decoration:none}
.drawer-nav a.is-active{color:var(--coral-d);font-weight:600}
.drawer-dl{border:1px solid var(--line);border-radius:var(--r-m);padding:18px;background:var(--surface)}
.drawer-dl h4{font-size:13px;color:var(--ink-3);font-weight:600;margin-bottom:12px}
.drawer-dl a{display:block;padding:10px 0;font-size:15px;border-bottom:1px dashed var(--line)}
.drawer-dl a:last-child{border-bottom:none}
/* ---------- Article head ---------- */
.art-head{position:relative;overflow:hidden;padding:34px 0 10px;background:var(--bg)}
.art-head::before{
  content:"";position:absolute;top:-90px;right:-70px;width:420px;height:420px;
  background-image:radial-gradient(rgba(239,91,107,.5) 1.2px,transparent 1.2px);
  background-size:22px 22px;opacity:.12;pointer-events:none;
}
.art-head-inner{position:relative;max-width:880px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3)}
.crumbs a{color:var(--ink-3)}
.crumbs a:hover{color:var(--coral-d)}
.crumbs .sep{color:#D8C9C0}
.crumbs .now{color:var(--ink-2);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.art-badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.art-title{font-size:clamp(1.7rem,3.4vw,2.6rem);font-weight:700;line-height:1.24;margin-top:16px;letter-spacing:0}
.art-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;margin-top:18px;font-size:13.5px;color:var(--ink-3)}
.art-meta span{display:inline-flex;align-items:center;gap:6px}
.art-meta b{color:var(--ink-2);font-weight:600}
/* ---------- Lead ---------- */
.art-lead{padding:26px 0 6px}
.lead-box{
  display:grid;grid-template-columns:8fr 4fr;gap:36px;align-items:start;
  padding-bottom:30px;border-bottom:1px dashed var(--line);
}
.lead-text{
  font-size:17px;line-height:1.85;color:var(--ink-2);
  border-left:3px solid var(--coral);background:var(--warm);
  border-radius:0 var(--r-s) var(--r-s) 0;padding:18px 22px;
  display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden;
}
.lead-tags{display:flex;flex-direction:column;gap:10px}
.lead-tags .tag{align-self:flex-start}
.lead-note{font-size:13px;color:var(--ink-3);margin-top:6px}
/* ---------- Article body + TOC ---------- */
.art-layout{display:grid;grid-template-columns:8fr 4fr;gap:48px;align-items:start;padding:var(--pad-y) 0}
.article-body{max-width:740px;font-size:16.8px;line-height:1.85;color:var(--ink);overflow-wrap:break-word}
.article-body h2{font-size:clamp(1.32rem,2.2vw,1.72rem);font-weight:700;margin:42px 0 16px;scroll-margin-top:88px}
.article-body h3{font-size:1.16rem;font-weight:600;margin:30px 0 12px;scroll-margin-top:88px}
.article-body h4{font-size:1.02rem;font-weight:600;margin:22px 0 10px}
.article-body p{margin:0 0 18px}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px}
.article-body li{margin-bottom:8px}
.article-body strong{color:var(--ink);font-weight:700}
.article-body a{color:var(--coral-d);text-decoration:underline;text-underline-offset:2px}
.article-body blockquote{
  margin:24px 0;padding:16px 22px;background:var(--warm);
  border-left:3px solid var(--coral);border-radius:0 var(--r-s) var(--r-s) 0;color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:14px;max-width:100%;margin:22px 0}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--ink-3);margin-top:8px;text-align:center}
.article-body table{display:block;overflow-x:auto;max-width:100%;border-collapse:collapse;font-size:15px;margin:22px 0}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;white-space:nowrap}
.article-body th{background:var(--warm);font-weight:600}
.article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0}
.article-empty{
  max-width:740px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-m);padding:36px 28px;box-shadow:var(--shadow);
}
.article-empty h2{font-size:1.35rem;margin-bottom:12px}
.article-empty p{color:var(--ink-2);margin-bottom:20px}
.toc{
  position:sticky;top:88px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-m);padding:20px 20px 14px;box-shadow:var(--shadow);
}
.toc h3{font-size:13px;color:var(--ink-3);font-weight:600;margin-bottom:10px}
.toc ol{list-style:none;margin:0;padding:0;counter-reset:toc}
.toc li{counter-increment:toc}
.toc a{
  display:flex;gap:10px;padding:10px 0;font-size:14.5px;color:var(--ink-2);
  border-bottom:1px dashed var(--line);
}
.toc li:last-child a{border-bottom:none}
.toc a::before{content:counter(toc,decimal-leading-zero);font-size:12px;font-weight:700;color:var(--coral);padding-top:3px}
.toc a:hover{color:var(--coral-d);text-decoration:none}
.toc-tip{margin-top:12px;font-size:12.5px;color:var(--ink-3);line-height:1.7}
.toc-mobile{display:none;margin-bottom:26px}
.toc-mobile details{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);padding:14px 18px}
.toc-mobile summary{font-size:14.5px;font-weight:600;color:var(--ink);cursor:pointer;list-style:none}
.toc-mobile summary::-webkit-details-marker{display:none}
.toc-mobile ol{list-style:none;margin:12px 0 0;padding:0;counter-reset:toc}
.toc-mobile li{counter-increment:toc;padding:8px 0;border-top:1px dashed var(--line)}
.toc-mobile a{font-size:14.5px;color:var(--ink-2)}
.toc-mobile a::before{content:counter(toc,decimal-leading-zero) ". ";color:var(--coral);font-weight:700;font-size:12px}
/* ---------- Checklist callout ---------- */
.callout{
  background:var(--mint-l);border:1px solid #C8EBE1;border-radius:var(--r-l);
  padding:30px 30px 26px;box-shadow:var(--shadow);
}
.callout h2{font-size:clamp(1.28rem,2.1vw,1.6rem);margin-bottom:8px}
.callout .callout-lead{font-size:15px;color:#186B5A;margin-bottom:20px}
.check-list{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.check-list li{display:flex;gap:12px;font-size:15.5px;line-height:1.75;color:var(--ink-2)}
.check-list li b{color:var(--ink);font-weight:600}
.check-list .ck{flex:0 0 20px;margin-top:4px;color:var(--mint)}
/* ---------- Figure ---------- */
.figure-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);
  overflow:hidden;box-shadow:var(--shadow);
}
.figure-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.figure-card figcaption{padding:16px 24px 20px;font-size:13.5px;color:var(--ink-3);line-height:1.7}
/* ---------- Related ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:32px}
.rel-card{
  display:flex;flex-direction:column;gap:10px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-m);padding:22px;
  box-shadow:var(--shadow);transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.rel-card:hover{transform:translateY(-2px);border-color:#F6C9CE;box-shadow:var(--shadow-h);text-decoration:none}
.rel-card h3{font-size:1.02rem;font-weight:600;color:var(--ink);line-height:1.5}
.rel-card p{font-size:14px;color:var(--ink-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.rel-card .rel-meta{font-size:12.5px;color:var(--ink-3);margin-top:auto}
.rel-fallback{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
/* ---------- Download ---------- */
.dl-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:32px}
.dl-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);
  padding:24px;display:flex;flex-direction:column;gap:14px;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
  box-shadow:var(--shadow);
}
.dl-card:hover{transform:translateY(-2px);border-color:#F6C9CE;box-shadow:var(--shadow-h)}
.dl-icon{
  width:44px;height:44px;border-radius:13px;background:var(--warm);color:var(--coral-d);
  display:grid;place-items:center;
}
.dl-card h3{font-size:1.02rem;font-weight:600}
.dl-card p{font-size:13.5px;color:var(--ink-3);line-height:1.7}
.dl-card .btn{margin-top:auto}
.section.dark .dl-card{background:rgba(255,248,243,.06);border-color:rgba(255,248,243,.18);box-shadow:none}
.section.dark .dl-card h3{color:#FFF8F3}
.section.dark .dl-card p{color:rgba(255,248,243,.66)}
.section.dark .dl-icon{background:rgba(255,248,243,.12);color:#FFD8D2}
.dl-note{margin-top:18px;font-size:13px;color:rgba(255,248,243,.55)}
.back-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
/* ---------- Footnote ---------- */
.footnote{max-width:840px;font-size:14px;color:var(--ink-3);line-height:1.8}
/* ---------- Footer ---------- */
.site-footer{background:var(--plum);color:#FFF8F3;padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:5fr 3fr 4fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:11px;background:rgba(255,248,243,.12);
  display:grid;place-items:center;
}
.footer-brand strong{display:block;font-size:15.5px;color:#FFF8F3;line-height:1.4}
.footer-brand span{font-size:12px;color:rgba(255,248,243,.6)}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,248,243,.72);max-width:420px}
.footer-domain{font-size:13px;color:rgba(255,248,243,.5);margin-top:12px}
.footer-col h4{font-size:14px;font-weight:600;margin-bottom:14px;color:#FFF8F3}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.footer-col ul a{color:rgba(255,248,243,.72);font-size:14px}
.footer-col ul a:hover{color:#FFF8F3}
.footer-dl-item{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 0;border-bottom:1px dashed rgba(255,248,243,.16);color:rgba(255,248,243,.8);font-size:14px;
}
.footer-dl-item:last-of-type{border-bottom:none}
.footer-dl-item:hover{text-decoration:none;color:#FFF8F3}
.footer-dl-item b{font-weight:600;color:#FFF8F3}
.footer-dl-item span{font-size:12.5px;color:rgba(255,248,243,.45)}
.footer-bottom{
  border-top:1px solid rgba(255,248,243,.14);margin-top:44px;padding:20px 0 26px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:rgba(255,248,243,.55);
}
/* ---------- Responsive ---------- */
@media (max-width:1199px){
  :root{--pad-y:72px}
  .header-inner{gap:16px}
  .header-left{gap:20px}
  .nav{gap:16px}
  .art-layout{gap:32px}
  .lead-box{gap:26px}
}
@media (max-width:991px){
  :root{--pad-y:64px}
  .nav{display:none}
  .menu-btn{display:grid}
  .header-inner{grid-template-columns:auto 1fr;height:60px}
  .header-actions{gap:8px}
  .lead-box{grid-template-columns:1fr;gap:20px}
  .lead-tags{flex-direction:row;flex-wrap:wrap}
  .art-layout{grid-template-columns:1fr;gap:0;padding-top:36px}
  .toc{display:none}
  .toc-mobile{display:block}
  .article-body{max-width:100%}
  .rel-grid{grid-template-columns:1fr 1fr}
  .dl-strip{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .callout{padding:26px 22px}
}
@media (max-width:767px){
  :root{--pad-y:56px}
  body{font-size:16px}
  .art-title{font-size:clamp(1.5rem,6.4vw,1.9rem)}
  .art-head{padding-top:24px}
  .rel-grid{grid-template-columns:1fr}
  .dl-strip{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .figure-card figcaption{padding:14px 18px 18px}
  .article-body{font-size:16px}
}
@media (max-width:519px){
  .container{padding:0 16px}
  .btn{width:100%}
  .btn-sm{width:auto}
  .back-row .btn{width:100%}
  .lead-text{padding:16px 18px;font-size:16px}
  .callout{padding:22px 18px}
  .rel-card{padding:18px}
  .dl-card{padding:20px}
}

/* roulang page: category1 */
:root{
  --bg:#FFF8F3;
  --surface:#FFFFFF;
  --warm:#FFF1EA;
  --ink:#241A2E;
  --ink-2:#5B4A63;
  --ink-3:#8B7A91;
  --line:#EADFD7;
  --coral:#EF5B6B;
  --coral-d:#C93E52;
  --mint:#1FA98A;
  --mint-l:#E3F6F0;
  --mint-d:#127A63;
  --plum:#3A2745;
  --r-s:12px;
  --r-m:20px;
  --r-l:28px;
  --shadow:0 8px 24px rgba(36,26,46,.06);
  --shadow-h:0 14px 36px rgba(36,26,46,.10);
  --ease:cubic-bezier(.2,.8,.2,1);
  --pad-y:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16.5px;line-height:1.78;color:var(--ink);background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--coral-d);text-decoration:underline}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink)}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
h1{font-size:clamp(2rem,4.4vw,3.5rem);line-height:1.15}
:focus-visible{outline:3px solid rgba(31,169,138,.45);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
.section{padding:var(--pad-y) 0;border-top:1px solid var(--line)}
.section.plain{background:var(--surface)}
.section.warm{background:var(--warm)}
.kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;
  padding:6px 12px;border-radius:999px;background:#FDE7E9;color:var(--coral-d);border:1px solid #F8D3D7;
}
.sec-head{max-width:780px}
.sec-title{font-size:clamp(1.5rem,2.6vw,2.25rem)}
.sec-lead{color:var(--ink-2);margin-top:14px;font-size:16px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:14px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;text-decoration:none;
  transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--coral);color:#fff;box-shadow:0 6px 18px rgba(239,91,107,.28)}
.btn-primary:hover{background:var(--coral-d);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(201,62,82,.3)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--coral);color:var(--coral-d);transform:translateY(-1px)}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:12px}
.btn-block{width:100%}
.tag{display:inline-block;font-size:12px;font-weight:600;line-height:1;padding:6px 11px;border-radius:999px;background:var(--mint-l);color:var(--mint-d)}
.tag-coral{background:#FDE7E9;color:var(--coral-d)}
.tag-plum{background:#EFE7F3;color:#5A3F6B}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--bg);
  border-bottom:1px solid var(--line);transition:box-shadow .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(36,26,46,.07)}
.header-inner{display:grid;grid-template-columns:7fr 5fr;align-items:center;gap:24px;height:64px}
.header-left{display:flex;align-items:center;gap:28px;min-width:0}
.brand{display:inline-flex;align-items:center;gap:10px;min-width:0}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:11px;background:var(--coral);
  display:grid;place-items:center;box-shadow:0 4px 12px rgba(239,91,107,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.brand-main{font-size:15px;font-weight:700;white-space:nowrap}
.brand-sub{font-size:11px;color:var(--ink-3);white-space:nowrap}
.nav{display:flex;align-items:center;gap:22px}
.nav a{position:relative;font-size:14.5px;color:var(--ink-2);padding:6px 0;white-space:nowrap}
.nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--coral);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
.nav a:hover{color:var(--coral-d);text-decoration:none}
.nav a:hover::after,.nav a.is-active::after{transform:scaleX(1)}
.nav a.is-active{color:var(--ink);font-weight:600}
.header-actions{display:flex;align-items:center;justify-content:flex-end;gap:10px}
.icon-btn{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:var(--surface);
  display:grid;place-items:center;color:var(--ink-2);
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.icon-btn:hover{border-color:var(--coral);color:var(--coral-d);transform:translateY(-1px)}
.icon-btn:active{transform:scale(.97)}
.menu-btn{display:none}
.drawer{
  position:fixed;inset:0;z-index:80;background:var(--bg);padding:20px;
  display:none;flex-direction:column;overflow-y:auto;
}
.drawer.is-open{display:flex}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;gap:12px}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:24px}
.drawer-nav a{font-size:18px;padding:14px 4px;border-bottom:1px solid var(--line);color:var(--ink)}
.drawer-nav a:hover{color:var(--coral-d);text-decoration:none}
.drawer-nav a.is-active{color:var(--coral-d);font-weight:600}
.drawer-dl{border:1px solid var(--line);border-radius:var(--r-m);padding:18px;background:var(--surface)}
.drawer-dl h4{font-size:13px;color:var(--ink-3);font-weight:600;margin-bottom:12px}
.drawer-dl a{display:block;padding:12px 0;font-size:15px;border-bottom:1px dashed var(--line);min-height:44px}
.drawer-dl a:last-child{border-bottom:none}

/* ---------- 分类页头 ---------- */
.page-hero{position:relative;overflow:hidden;padding:34px 0 46px;border-bottom:1px solid var(--line);background:var(--bg)}
.page-hero::before{
  content:"";position:absolute;top:-70px;right:-90px;width:440px;height:440px;
  background-image:radial-gradient(rgba(239,91,107,.5) 1.2px,transparent 1.2px);
  background-size:22px 22px;opacity:.12;pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;bottom:-150px;left:-130px;width:380px;height:380px;border-radius:50%;
  border:1px solid rgba(31,169,138,.4);opacity:.14;pointer-events:none;
}
.page-grid{position:relative;display:grid;grid-template-columns:1.55fr .95fr;gap:38px;align-items:start}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:18px}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb .sep{color:var(--ink-3)}
.page-title{font-size:clamp(1.7rem,3.1vw,2.5rem);line-height:1.2}
.page-lead{margin-top:16px;color:var(--ink-2);max-width:640px;font-size:16px}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.chip{
  font-size:12.5px;font-weight:600;padding:7px 14px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);color:var(--ink-2);
}
.brief-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);padding:20px;box-shadow:var(--shadow)}
.brief-thumb{border-radius:18px;overflow:hidden;aspect-ratio:16/10;background:var(--warm);margin-bottom:16px}
.brief-thumb img{width:100%;height:100%;object-fit:cover}
.brief-card h2{font-size:13px;color:var(--ink-3);font-weight:600;margin-bottom:10px}
.brief-list li{display:flex;gap:10px;align-items:flex-start;padding:10px 0;border-bottom:1px dashed var(--line);font-size:14.5px;color:var(--ink-2)}
.brief-list li:last-child{border-bottom:none;padding-bottom:0}
.num{
  flex:0 0 auto;display:grid;place-items:center;height:24px;min-width:24px;border-radius:8px;
  font-size:12px;font-weight:700;color:var(--coral-d);background:#FDE7E9;
}

/* ---------- 内容卡片 ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-top:38px}
.entry-card{
  display:flex;flex-direction:column;gap:12px;padding:24px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);box-shadow:var(--shadow);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.entry-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-h);border-color:#F6C6CC}
.entry-card h3{font-size:18px}
.entry-card p{color:var(--ink-2);font-size:15px}
.entry-card.feature{
  grid-column:1 / -1;display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:center;padding:26px;
}
.entry-card.feature h3{font-size:20px}
.entry-body{display:flex;flex-direction:column;gap:12px}
.entry-thumb{border-radius:16px;overflow:hidden;aspect-ratio:16/10;background:var(--warm)}
.entry-thumb img{width:100%;height:100%;object-fit:cover}
.thumb-row{display:flex;gap:8px;flex-wrap:wrap}
.more-row{display:flex;justify-content:center;margin-top:34px}

/* ---------- 维度速查 ---------- */
.dim-list{margin-top:34px;border-top:1px solid var(--line)}
.dim-row{
  display:grid;grid-template-columns:190px 1fr 1fr;gap:24px;
  padding:20px 0;border-bottom:1px solid var(--line);align-items:start;
}
.dim-row h3{font-size:16.5px}
.dim-cell{}
.dim-label{display:block;font-size:12px;font-weight:600;color:var(--mint-d);margin-bottom:6px}
.dim-cell p{font-size:15px;color:var(--ink-2)}

/* ---------- 类型对照 ---------- */
.type-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:36px}
.type-card{
  display:flex;flex-direction:column;gap:12px;padding:22px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-m);box-shadow:var(--shadow);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.type-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-h);border-color:#F6C6CC}
.type-card h3{font-size:17px}
.type-card li{position:relative;padding-left:16px;font-size:14.5px;color:var(--ink-2);margin-bottom:8px;line-height:1.65}
.type-card li::before{content:"";position:absolute;left:0;top:.66em;width:6px;height:6px;border-radius:50%;background:var(--coral)}

/* ---------- 核查清单 ---------- */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:36px}
.check-item{
  display:flex;gap:14px;align-items:flex-start;padding:18px;background:var(--surface);
  border:1px solid var(--line);border-radius:16px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.check-item:hover{border-color:#BEE8DD;box-shadow:var(--shadow)}
.check-ico{flex:0 0 28px;width:28px;height:28px;border-radius:9px;background:var(--mint-l);display:grid;place-items:center;color:var(--mint-d)}
.check-item h3{font-size:15.5px;margin-bottom:4px}
.check-item p{font-size:14px;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq-wrap{margin-top:34px;max-width:880px}
.faq-item{
  border:1px solid var(--line);border-radius:16px;background:var(--surface);margin-bottom:12px;overflow:hidden;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 20px;font-size:16px;font-weight:600;
  display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-ico{position:relative;flex:0 0 22px;width:22px;height:22px}
.faq-ico::before,.faq-ico::after{content:"";position:absolute;background:var(--coral);border-radius:2px;transition:transform .2s var(--ease)}
.faq-ico::before{left:3px;right:3px;top:10px;height:2px}
.faq-ico::after{top:3px;bottom:3px;left:10px;width:2px}
.faq-item[open] .faq-ico::after{transform:scaleY(0)}
.faq-item[open]{background:var(--warm);border-color:#F6C6CC}
.faq-body{padding:0 20px 20px;color:var(--ink-2);font-size:15px}

/* ---------- 延伸阅读 ---------- */
.read-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:36px}
.read-card{
  display:flex;flex-direction:column;gap:10px;padding:22px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-m);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.read-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-h)}
.read-card h3{font-size:16.5px}
.read-card p{font-size:14.5px;color:var(--ink-2)}

/* ---------- 下载 ---------- */
.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:36px}
.dl-card{
  display:flex;flex-direction:column;gap:14px;padding:24px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-m);box-shadow:var(--shadow);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.dl-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-h);border-color:#F6C6CC}
.dl-ico{width:46px;height:46px;border-radius:14px;background:var(--warm);display:grid;place-items:center;color:var(--coral-d)}
.dl-card h3{font-size:17px}
.dl-card p{font-size:13.5px;color:var(--ink-3)}
.dl-note{margin-top:18px;font-size:13px;color:var(--ink-3)}

/* ---------- Footer ---------- */
.site-footer{background:var(--plum);color:#FFF8F3;padding:56px 0 24px}
.site-footer a{color:#FFF8F3}
.site-footer a:hover{color:#FFD8D2;text-decoration:none}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-mark{width:34px;height:34px;flex:0 0 34px;border-radius:11px;background:rgba(255,248,243,.14);display:grid;place-items:center}
.footer-brand strong{display:block;font-size:15px;line-height:1.3}
.footer-brand span{display:block;font-size:12px;color:rgba(255,248,243,.62);margin-top:2px}
.footer-desc{font-size:14px;color:rgba(255,248,243,.72);max-width:420px}
.footer-domain{margin-top:12px;font-size:13px;color:rgba(255,248,243,.55)}
.footer-col h4{font-size:13px;font-weight:600;color:rgba(255,248,243,.6);margin-bottom:14px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:14.5px;color:rgba(255,248,243,.86)}
.footer-dl-item{
  display:flex;justify-content:space-between;align-items:center;gap:10px;
  padding:11px 14px;border:1px solid rgba(255,248,243,.18);border-radius:12px;margin-bottom:10px;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.footer-dl-item:hover{border-color:rgba(255,248,243,.42);background:rgba(255,248,243,.06)}
.footer-dl-item b{font-size:14px;font-weight:600}
.footer-dl-item span{font-size:12px;color:rgba(255,248,243,.55)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  margin-top:38px;padding-top:18px;border-top:1px solid rgba(255,248,243,.16);
  font-size:12.5px;color:rgba(255,248,243,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--pad-y:72px}
  .type-grid{grid-template-columns:repeat(2,1fr)}
  .read-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1023px){
  :root{--pad-y:72px}
  .nav{display:none}
  .menu-btn{display:grid}
  .header-inner{grid-template-columns:1fr auto}
  .page-grid{grid-template-columns:1fr;gap:26px}
  .entry-card.feature{grid-template-columns:1fr}
  .dim-row{grid-template-columns:160px 1fr 1fr;gap:18px}
  .check-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  :root{--pad-y:56px}
  body{font-size:16px}
  .page-hero{padding:26px 0 36px}
  .page-hero::before,.page-hero::after{display:none}
  .entry-grid{grid-template-columns:1fr}
  .entry-card.feature{grid-column:auto}
  .entry-card{padding:20px}
  .dim-row{grid-template-columns:1fr;gap:12px}
  .type-grid{grid-template-columns:1fr}
  .read-grid{grid-template-columns:1fr}
  .dl-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .faq-wrap{max-width:none}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .brand-sub{display:none}
  .brand-main{font-size:14px}
  .header-actions .btn-sm{display:none}
  .chip{font-size:12px;padding:6px 12px}
  .brief-card{padding:16px}
  .dl-card,.entry-card,.type-card,.read-card{padding:18px}
}