/* roulang page: index */
:root{
  --brand:#3F6CA8;
  --brand-dark:#345A8C;
  --brand-light:#E8EFF8;
  --warm:#E07A4F;
  --warm-light:#FBEDE5;
  --bg:#F6F5F1;
  --surface:#FFFFFF;
  --surface-alt:#EEF2F7;
  --ink:#1E2A36;
  --ink-2:#5E6B78;
  --ink-3:#8A95A1;
  --line:#E3E7EC;
  --r-lg:18px;
  --r-md:12px;
  --r-sm:10px;
  --shadow:0 8px 28px rgba(30,42,54,.07);
  --shadow-hover:0 14px 36px rgba(30,42,54,.11);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;padding:0;
  font-family:var(--font);
  font-size:16px;line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease}
a:hover{color:var(--brand-dark)}
button{font-family:inherit}
input,textarea,select{font-family:inherit;font-size:15px}
::selection{background:var(--brand-light);color:var(--brand-dark)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;
}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
.section{padding:72px 0}
.section--paper{background:var(--bg)}
.section--alt{background:var(--surface-alt)}
.section--white{background:var(--surface)}
.section-head{max-width:760px;margin-bottom:36px}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;letter-spacing:.08em;
  color:var(--brand);background:var(--brand-light);
  padding:6px 12px;border-radius:999px;margin-bottom:14px;
}
.eyebrow--warm{color:#A9522C;background:var(--warm-light)}
h2.sec-title{font-size:30px;line-height:1.35;font-weight:700;letter-spacing:-.01em;color:var(--ink)}
.sec-title--lg{font-size:34px}
.section-lead{margin-top:12px;font-size:15.5px;line-height:1.85;color:var(--ink-2);max-width:720px}
.sec-foot{margin-top:34px;display:flex;flex-wrap:wrap;gap:12px;align-items:center}
/* buttons */
.btn-main,.btn-line,.btn-warm{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:11px 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1.2;border:1px solid transparent;
  cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-main{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(63,108,168,.24)}
.btn-main:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(63,108,168,.3)}
.btn-main:active{transform:translateY(0);box-shadow:0 4px 12px rgba(63,108,168,.24)}
.btn-line{background:#fff;color:var(--brand);border-color:#C9D8EC}
.btn-line:hover{background:var(--brand-light);color:var(--brand-dark);border-color:#B7CCE8;transform:translateY(-2px)}
.btn-warm{background:var(--warm);color:#fff;box-shadow:0 6px 18px rgba(224,122,79,.26)}
.btn-warm:hover{background:#CD6A41;color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(224,122,79,.32)}
.btn-warm:active{transform:translateY(0)}
.btn-block{width:100%}
/* header */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  box-shadow:0 1px 0 rgba(30,42,54,.06);
}
.nav-main{display:flex;align-items:center;gap:16px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink)}
.brand-mark{
  width:42px;height:42px;border-radius:13px;flex:0 0 auto;
  background:linear-gradient(140deg,#3F6CA8,#5B86C4);
  display:grid;place-items:center;color:#fff;font-size:17px;
  box-shadow:0 8px 18px rgba(63,108,168,.28);
}
.brand-text strong{display:block;font-size:18px;font-weight:700;line-height:1.2;letter-spacing:-.01em}
.brand-text small{display:block;font-size:11.5px;color:var(--ink-3);letter-spacing:.02em;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-links a{
  display:inline-flex;align-items:center;height:40px;padding:0 13px;border-radius:var(--r-sm);
  font-size:14.5px;font-weight:500;color:var(--ink-2);white-space:nowrap;
}
.nav-links a:hover{color:var(--brand);background:var(--brand-light)}
.nav-links a.active{color:var(--brand);background:var(--brand-light);font-weight:600}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.city-trigger{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 14px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
  color:var(--ink);font-size:14px;font-weight:600;cursor:pointer;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.city-trigger:hover{border-color:#B7CCE8;background:var(--brand-light);box-shadow:0 6px 16px rgba(63,108,168,.12)}
.city-trigger i.fa-location-dot{color:var(--warm)}
.city-trigger .fa-angle-down{font-size:11px;color:var(--ink-3)}
.city-menu{
  width:328px;padding:16px;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-hover);background:#fff;margin-top:8px;
}
.city-menu-title{font-size:12px;font-weight:700;color:var(--ink-3);letter-spacing:.06em;margin:14px 0 8px}
.city-search{
  display:flex;align-items:center;gap:8px;height:42px;padding:0 12px;
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-sm);
}
.city-search i{color:var(--ink-3);font-size:13px}
.city-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--ink)}
.city-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.city-grid button{
  height:38px;border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);
  font-size:13.5px;color:var(--ink-2);cursor:pointer;transition:.18s;
}
.city-grid button:hover{background:var(--brand-light);border-color:#B7CCE8;color:var(--brand)}
.city-bar{
  background:var(--surface-alt);border-top:1px solid rgba(30,42,54,.05);
  font-size:13px;color:var(--ink-2);
}
.city-bar .wrap{display:flex;align-items:center;gap:14px;min-height:38px;flex-wrap:wrap}
.city-bar strong{color:var(--ink);font-weight:600}
.city-bar .dot{width:4px;height:4px;border-radius:50%;background:var(--ink-3);display:inline-block}
.city-bar a{color:var(--brand);font-weight:500}
.city-bar .bar-note{margin-left:auto;color:var(--ink-3)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:var(--r-sm);color:var(--ink);font-size:17px;cursor:pointer;
}
/* mobile drawer */
.drawer-mask{
  position:fixed;inset:0;background:rgba(30,42,54,.45);opacity:0;visibility:hidden;
  transition:.25s;z-index:1090;
}
.drawer-mask.show{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(88vw,360px);background:#fff;z-index:1100;
  transform:translateX(102%);transition:transform .28s ease;
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;
  box-shadow:-16px 0 40px rgba(30,42,54,.16);
}
.drawer.show{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{
  width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);
  background:#fff;font-size:16px;color:var(--ink);cursor:pointer;
}
.drawer-city{
  background:var(--surface-alt);border-radius:var(--r-md);padding:14px;margin-bottom:16px;
}
.drawer-city p{font-size:12px;color:var(--ink-3);letter-spacing:.06em;font-weight:700}
.drawer-city strong{font-size:18px;display:block;margin:4px 0 6px}
.drawer-city span{font-size:13px;color:var(--ink-2)}
.drawer-links{display:flex;flex-direction:column;gap:4px}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:46px;padding:0 12px;border-radius:var(--r-sm);
  font-size:15px;font-weight:500;color:var(--ink);
}
.drawer-links a:hover,.drawer-links a.active{background:var(--brand-light);color:var(--brand)}
.drawer-cta{margin-top:auto;padding-top:18px}
/* hero */
.hero{
  position:relative;padding:56px 0 68px;
  background:
    linear-gradient(180deg,rgba(246,245,241,.95) 0%,rgba(246,245,241,.86) 46%,rgba(246,245,241,.97) 100%),
    url('/assets/images/21e85c47b1d3f6b8.webp') center/cover no-repeat;
  border-bottom:1px solid rgba(30,42,54,.05);
}
.hero-grid{display:grid;grid-template-columns:1.16fr .84fr;gap:44px;align-items:center}
.hero-copy h1{font-size:44px;line-height:1.26;font-weight:700;letter-spacing:-.015em;margin:14px 0 18px}
.hero-lead{font-size:16px;line-height:1.9;color:var(--ink-2);max-width:600px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin-top:26px}
.hero-chip{
  display:inline-flex;align-items:center;gap:7px;height:36px;padding:0 14px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  font-size:13px;font-weight:600;color:var(--ink);cursor:pointer;transition:.18s;
}
.hero-chip:hover{border-color:#B7CCE8;color:var(--brand);box-shadow:0 6px 16px rgba(63,108,168,.12)}
.hero-chip i{color:var(--warm);font-size:12px}
.meta-item{font-size:13.5px;color:var(--ink-2)}
.meta-item strong{font-size:17px;color:var(--brand);font-weight:700;margin-right:4px}
.ticket-wrap{position:relative}
.ticket{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow-hover);
}
.ticket-media{position:relative;height:168px;overflow:hidden}
.ticket-media img{width:100%;height:100%;object-fit:cover}
.ticket-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(30,42,54,.06),rgba(30,42,54,.34))}
.ticket-tag{
  position:absolute;left:16px;top:16px;z-index:2;
  background:var(--warm);color:#fff;font-size:12px;font-weight:700;
  padding:5px 12px;border-radius:999px;letter-spacing:.04em;
}
.ticket-body{padding:20px 22px 22px}
.ticket-sub{font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--ink-3)}
.ticket-title{font-size:21px;font-weight:700;line-height:1.4;margin:6px 0 14px;color:var(--ink)}
.ticket-list{display:flex;flex-direction:column;gap:9px;margin-bottom:18px}
.ticket-list li{display:flex;align-items:flex-start;gap:9px;font-size:14px;color:var(--ink-2);line-height:1.6}
.ticket-list i{color:var(--brand);font-size:13px;margin-top:4px}
.ticket-note{margin-top:12px;font-size:12px;color:var(--ink-3);text-align:center}
.float-card{
  position:absolute;left:-26px;bottom:-26px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);padding:14px 16px;box-shadow:var(--shadow);
  display:flex;align-items:center;gap:12px;max-width:250px;
}
.float-card .fc-icon{
  width:38px;height:38px;border-radius:11px;background:var(--brand-light);
  display:grid;place-items:center;color:var(--brand);font-size:15px;flex:0 0 auto;
}
.float-card strong{display:block;font-size:14px;color:var(--ink)}
.float-card span{font-size:12px;color:var(--ink-3)}
/* feature grid */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.feature-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.feature-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#C9D8EC}
.feature-icon{
  width:46px;height:46px;border-radius:13px;background:var(--brand-light);
  display:grid;place-items:center;color:var(--brand);font-size:18px;margin-bottom:16px;
}
.feature-card:nth-child(3n+2) .feature-icon{background:var(--warm-light);color:var(--warm)}
.feature-card h3{font-size:18.5px;font-weight:700;margin-bottom:8px}
.feature-card p{font-size:14px;line-height:1.75;color:var(--ink-2)}
.feature-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;
  font-size:13px;font-weight:600;color:var(--brand);
}
.feature-card:hover .feature-link{color:var(--warm)}
/* city band */
.city-band{display:grid;grid-template-columns:1fr 1.15fr;gap:40px;align-items:center}
.city-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow);
}
.city-panel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.city-panel-grid button{
  min-height:44px;border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);
  font-size:14px;color:var(--ink-2);cursor:pointer;transition:.18s;
}
.city-panel-grid button:hover{border-color:#B7CCE8;background:var(--brand-light);color:var(--brand);transform:translateY(-2px)}
.city-panel-foot{margin-top:16px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.city-map{
  position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);background:var(--surface-alt);min-height:220px;
}
.city-map img{width:100%;height:100%;min-height:220px;object-fit:cover}
.city-map .map-pin{
  position:absolute;left:50%;top:46%;transform:translate(-50%,-50%);
  background:#fff;border-radius:999px;padding:8px 16px;font-size:13px;font-weight:700;
  color:var(--brand);box-shadow:var(--shadow);display:flex;align-items:center;gap:8px;
}
.city-map .map-pin i{color:var(--warm)}
/* stats */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 22px;box-shadow:var(--shadow);text-align:left;
  transition:transform .2s ease,box-shadow .2s ease;
}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.stat-num{font-size:34px;font-weight:700;letter-spacing:-.02em;color:var(--brand);line-height:1.1}
.stat-card:nth-child(2) .stat-num,.stat-card:nth-child(4) .stat-num{color:var(--warm)}
.stat-label{margin-top:8px;font-size:14px;font-weight:600;color:var(--ink)}
.stat-desc{margin-top:4px;font-size:12.5px;color:var(--ink-3)}
.stat-note{margin-top:20px;font-size:12.5px;color:var(--ink-3);line-height:1.8}
/* steps */
.step-track{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.step-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px 22px;box-shadow:var(--shadow);position:relative;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#C9D8EC}
.step-num{
  width:38px;height:38px;border-radius:50%;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-size:15px;font-weight:700;margin-bottom:14px;
}
.step-item:nth-child(even) .step-num{background:var(--warm)}
.step-item h3{font-size:17px;font-weight:700;margin-bottom:6px}
.step-item p{font-size:13.5px;line-height:1.75;color:var(--ink-2)}
/* channel matrix */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.channel-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow);color:inherit;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#C9D8EC;color:inherit}
.channel-media{height:150px;overflow:hidden}
.channel-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.channel-card:hover .channel-media img{transform:scale(1.05)}
.channel-body{padding:20px 22px 22px}
.channel-body h3{font-size:19px;font-weight:700;margin-bottom:8px;display:flex;align-items:center;gap:8px}
.channel-body h3 i{color:var(--warm);font-size:14px}
.channel-body p{font-size:13.5px;line-height:1.75;color:var(--ink-2)}
.channel-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:11.5px;font-weight:600;background:var(--brand-light);color:var(--brand-dark);
}
.tag--warm{background:var(--warm-light);color:#A9522C}
.tag--muted{background:var(--surface-alt);color:var(--ink-2)}
/* scene wall */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.scene-card{
  position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  background:#fff;box-shadow:var(--shadow);min-height:200px;
  transition:transform .2s ease,box-shadow .2s ease;
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.scene-card img{width:100%;height:100%;object-fit:cover;min-height:200px}
.scene-mask{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(30,42,54,.05) 30%,rgba(30,42,54,.78) 100%);
  display:flex;flex-direction:column;justify-content:flex-end;padding:18px;
}
.scene-mask h3{font-size:16.5px;font-weight:700;color:#fff;margin-bottom:5px}
.scene-mask p{font-size:12.5px;line-height:1.6;color:rgba(255,255,255,.86)}
.scene-card--wide{grid-column:span 2;min-height:280px}
.scene-card--wide img{min-height:280px}
.scene-card--wide .scene-mask h3{font-size:20px}
.scene-card--wide .scene-mask p{font-size:13.5px;max-width:340px}
/* stories */
.story-band{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.story-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.story-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#C9D8EC}
.story-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{
  width:44px;height:44px;border-radius:50%;background:var(--brand-light);color:var(--brand);
  display:grid;place-items:center;font-size:15px;font-weight:700;flex:0 0 auto;
}
.story-card:nth-child(2) .avatar{background:var(--warm-light);color:#A9522C}
.story-card:nth-child(3) .avatar{background:#E7EFE9;color:#3C7A5A}
.story-name{font-size:14.5px;font-weight:700;color:var(--ink)}
.story-loc{font-size:12px;color:var(--ink-3)}
.story-card h3{font-size:17px;font-weight:700;line-height:1.5;margin-bottom:8px}
.story-card p{font-size:13.5px;line-height:1.8;color:var(--ink-2)}
.story-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:16px;padding-top:14px;border-top:1px dashed var(--line)}
/* forum */
.forum-layout{display:grid;grid-template-columns:.76fr 1.24fr;gap:26px;align-items:start}
.forum-side{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--shadow);
}
.forum-side h3{font-size:16px;font-weight:700;margin-bottom:14px}
.forum-board{display:flex;flex-direction:column;gap:8px}
.forum-board span{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  min-height:44px;padding:0 14px;border-radius:var(--r-sm);background:var(--bg);
  font-size:14px;color:var(--ink-2);font-weight:500;
}
.forum-board span b{font-size:12px;color:var(--ink-3);font-weight:600}
.forum-hot{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:8px 22px;box-shadow:var(--shadow)}
.hot-item{display:flex;align-items:flex-start;gap:14px;padding:16px 0;border-bottom:1px dashed var(--line)}
.hot-item:last-child{border-bottom:0}
.hot-index{
  width:26px;height:26px;border-radius:8px;flex:0 0 auto;margin-top:2px;
  display:grid;place-items:center;font-size:12.5px;font-weight:700;
  background:var(--surface-alt);color:var(--ink-2);
}
.hot-item:nth-child(1) .hot-index,.hot-item:nth-child(2) .hot-index{background:var(--warm);color:#fff}
.hot-main h4{font-size:15px;font-weight:600;line-height:1.6;color:var(--ink)}
.hot-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;margin-top:6px;font-size:12px;color:var(--ink-3)}
/* news */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.news-card{
  display:grid;grid-template-columns:180px 1fr;gap:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow);color:inherit;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#C9D8EC;color:inherit}
.news-thumb{overflow:hidden;background:var(--surface-alt)}
.news-thumb img{width:100%;height:100%;min-height:170px;object-fit:cover;transition:transform .4s ease}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:18px 20px;display:flex;flex-direction:column;justify-content:center}
.news-meta{display:flex;align-items:center;gap:10px;margin-bottom:8px;flex-wrap:wrap}
.news-date{font-size:12px;color:var(--ink-3)}
.news-title{
  font-size:16.5px;font-weight:700;line-height:1.5;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-summary{
  margin-top:8px;font-size:13px;line-height:1.7;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-more{display:inline-flex;align-items:center;gap:6px;margin-top:12px;font-size:12.5px;font-weight:600;color:var(--brand)}
.news-card:hover .news-more{color:var(--warm)}
.empty-state{
  grid-column:1/-1;background:#fff;border:1px dashed #C9D8EC;border-radius:var(--r-lg);
  padding:52px 24px;text-align:center;box-shadow:var(--shadow);
}
.empty-state i{font-size:30px;color:#B7CCE8;margin-bottom:14px;display:block}
.empty-state p{font-size:15px;color:var(--ink-2);margin-bottom:16px}
/* picks */
.pick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.pick-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow);display:block;color:inherit;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pick-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#C9D8EC;color:inherit}
.pick-thumb{height:140px;overflow:hidden}
.pick-thumb img{width:100%;height:100%;object-fit:cover}
.pick-body{padding:18px 20px 20px}
.pick-body h3{font-size:16px;font-weight:700;line-height:1.55;margin-bottom:8px}
.pick-body p{font-size:13px;line-height:1.7;color:var(--ink-2)}
.pick-meta{margin-top:12px;font-size:12px;color:var(--ink-3);display:flex;gap:10px;align-items:center;flex-wrap:wrap}
/* save & share */
.save-band{
  display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:34px;box-shadow:var(--shadow);
}
.save-band h2{font-size:26px;font-weight:700;line-height:1.4}
.save-band p{margin-top:10px;font-size:14.5px;line-height:1.85;color:var(--ink-2)}
.save-actions{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.save-btn{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  min-height:104px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--bg);
  color:var(--ink-2);font-size:13px;font-weight:600;cursor:pointer;transition:.18s;
}
.save-btn i{font-size:18px;color:var(--brand)}
.save-btn:hover{background:var(--brand-light);border-color:#B7CCE8;color:var(--brand);transform:translateY(-2px)}
/* topic index */
.topic-cloud{display:flex;flex-wrap:wrap;gap:10px}
.topic-cloud button{
  height:40px;padding:0 18px;border-radius:999px;border:1px solid var(--line);
  background:#fff;font-size:14px;color:var(--ink-2);cursor:pointer;transition:.18s;
}
.topic-cloud button:hover{background:var(--brand-light);border-color:#B7CCE8;color:var(--brand);transform:translateY(-2px)}
.topic-cloud button.is-hot{background:var(--warm-light);border-color:#F0D3C3;color:#A9522C}
.topic-cloud button.is-hot:hover{background:#F7E1D4}
/* partners */
.partner-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.partner-item{
  display:grid;place-items:center;min-height:82px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  font-size:14.5px;font-weight:600;color:#9AA5B1;letter-spacing:.02em;
  filter:grayscale(1);transition:.2s;
}
.partner-item:hover{filter:grayscale(0);color:var(--brand);border-color:#C9D8EC;box-shadow:var(--shadow);transform:translateY(-2px)}
/* faq */
.faq-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:26px;align-items:start}
.faq-acc .accordion-item{
  border:1px solid var(--line);border-radius:var(--r-md) !important;
  margin-bottom:12px;overflow:hidden;background:#fff;box-shadow:var(--shadow);
}
.faq-acc .accordion-button{
  background:#fff;color:var(--ink);font-size:15.5px;font-weight:700;
  padding:18px 22px;box-shadow:none;border-radius:var(--r-md) !important;line-height:1.6;
}
.faq-acc .accordion-button:not(.collapsed){background:var(--brand-light);color:var(--brand-dark)}
.faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--brand);outline-offset:-4px}
.faq-acc .accordion-button::after{
  background-image:none;content:"\2b";font-family:inherit;font-size:18px;font-weight:400;
  color:var(--brand);transform:none;width:auto;height:auto;transition:transform .2s ease;
}
.faq-acc .accordion-button:not(.collapsed)::after{content:"\2212";transform:none}
.faq-acc .accordion-body{padding:16px 22px 20px;font-size:14px;line-height:1.9;color:var(--ink-2)}
.faq-side{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--shadow);position:sticky;top:96px;
}
.faq-side h3{font-size:17px;font-weight:700;margin-bottom:10px}
.faq-side p{font-size:13.5px;line-height:1.85;color:var(--ink-2);margin-bottom:16px}
/* safety strip */
.safety-strip{
  background:var(--brand-light);border-radius:var(--r-lg);padding:28px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
}
.safety-item{display:flex;align-items:flex-start;gap:12px}
.safety-item i{
  width:38px;height:38px;border-radius:11px;background:#fff;color:var(--brand);
  display:grid;place-items:center;font-size:15px;flex:0 0 auto;
  box-shadow:0 4px 12px rgba(63,108,168,.12);
}
.safety-item strong{display:block;font-size:14.5px;color:var(--ink);font-weight:700}
.safety-item span{font-size:12.5px;color:var(--ink-2);line-height:1.6}
/* cta form */
.cta-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:34px;align-items:start}
.cta-copy h2{font-size:30px;font-weight:700;line-height:1.35}
.cta-copy p{margin-top:14px;font-size:15px;line-height:1.9;color:var(--ink-2)}
.cta-mini{
  margin-top:24px;display:flex;align-items:center;gap:14px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px 18px;box-shadow:var(--shadow);
}
.cta-mini i{
  width:40px;height:40px;border-radius:11px;background:var(--warm-light);color:var(--warm);
  display:grid;place-items:center;font-size:16px;flex:0 0 auto;
}
.cta-mini strong{display:block;font-size:14px;color:var(--ink)}
.cta-mini span{font-size:12.5px;color:var(--ink-3)}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--shadow);
}
.form-row{margin-bottom:16px}
.form-row label{display:block;font-size:13px;font-weight:600;color:var(--ink);margin-bottom:7px}
.form-row input,.form-row select,.form-row textarea{
  width:100%;min-height:46px;padding:11px 14px;border:1px solid var(--line);
  border-radius:var(--r-sm);background:var(--bg);color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.form-row textarea{min-height:104px;resize:vertical;line-height:1.7}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{
  outline:none;border-color:var(--brand);background:#fff;
  box-shadow:0 0 0 3px rgba(63,108,168,.14);
}
.form-row input::placeholder,.form-row textarea::placeholder{color:#A6B0BB}
.form-tip{margin-top:12px;font-size:12px;color:var(--ink-3);line-height:1.7}
.form-msg{
  margin-top:14px;padding:11px 14px;border-radius:var(--r-sm);font-size:13.5px;
  background:var(--brand-light);color:var(--brand-dark);display:none;
}
.form-msg.show{display:block}
/* footer */
.site-footer{background:#1E2A36;color:#C8D1DA;padding:56px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{box-shadow:none}
.footer-brand strong{font-size:17px;color:#fff;font-weight:700}
.footer-brand small{display:block;font-size:11.5px;color:#8A95A1}
.footer-about{font-size:13.5px;line-height:1.9;color:#9BA7B3;max-width:330px}
.footer-full{display:inline-block;margin-top:14px;font-size:12.5px;color:#8A95A1;letter-spacing:.02em}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{font-size:13.5px;color:#9BA7B3;transition:color .2s ease}
.footer-col a:hover{color:var(--warm)}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.09);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;font-size:12.5px;color:#7D8894;
}
.footer-bottom a{color:#9BA7B3}
.footer-bottom a:hover{color:var(--warm)}
.to-top{
  display:inline-flex;align-items:center;gap:7px;height:36px;padding:0 14px;
  border-radius:999px;border:1px solid rgba(255,255,255,.16);background:transparent;
  color:#C8D1DA;font-size:12.5px;cursor:pointer;transition:.2s;
}
.to-top:hover{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.3)}
/* responsive */
@media (max-width:1200px){
  .hero-copy h1{font-size:38px}
  .scene-grid{grid-template-columns:repeat(3,1fr)}
  .scene-card--wide{grid-column:span 1;min-height:220px}
  .scene-card--wide img{min-height:220px}
}
@media (max-width:992px){
  .nav-links{display:none}
  .nav-toggle{display:inline-grid;place-items:center}
  .nav-right .city-trigger{display:none}
  .hero{padding:40px 0 52px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-copy h1{font-size:36px}
  .float-card{position:static;margin-top:16px;max-width:none}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .city-band{grid-template-columns:1fr;gap:26px}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .step-track{grid-template-columns:repeat(2,1fr)}
  .channel-grid{grid-template-columns:1fr}
  .story-band{grid-template-columns:1fr}
  .forum-layout{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .pick-grid{grid-template-columns:repeat(2,1fr)}
  .faq-layout{grid-template-columns:1fr}
  .faq-side{position:static}
  .safety-strip{grid-template-columns:repeat(2,1fr)}
  .save-band{grid-template-columns:1fr;padding:26px}
  .cta-grid{grid-template-columns:1fr}
  .partner-grid{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .city-bar .bar-note{display:none}
}
@media (max-width:768px){
  .section{padding:44px 0}
  h2.sec-title{font-size:24px}
  .sec-title--lg{font-size:26px}
  .hero-copy h1{font-size:31px}
  .hero-lead{font-size:15px}
  .hero-actions .btn-main,.hero-actions .btn-line{flex:1 1 100%}
  .feature-grid{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .step-track{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .city-panel-grid{grid-template-columns:repeat(3,1fr)}
  .news-card{grid-template-columns:1fr}
  .news-thumb img{min-height:170px;height:170px}
  .pick-grid{grid-template-columns:1fr}
  .partner-grid{grid-template-columns:repeat(2,1fr)}
  .safety-strip{grid-template-columns:1fr}
  .save-actions{grid-template-columns:1fr}
  .save-btn{flex-direction:row;min-height:56px;justify-content:flex-start;padding:0 16px;gap:12px}
  .footer-grid{grid-template-columns:1fr}
  .cta-copy h2{font-size:24px}
  .stat-num{font-size:28px}
}
@media (max-width:576px){
  .wrap{padding:0 16px}
  .hero-copy h1{font-size:27px}
  .ticket-body{padding:18px}
  .feature-card,.stat-card,.step-item,.story-card,.forum-side,.form-card,.faq-side{padding:18px}
  .scene-grid{grid-template-columns:1fr}
  .scene-card,.scene-card img{min-height:190px}
  .city-panel-grid{grid-template-columns:repeat(2,1fr)}
  .hero-meta{gap:8px 14px}
  .meta-item strong{font-size:15px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: article */
:root{
  --brand:#3F6CA8;
  --brand-dark:#345A8C;
  --brand-light:#E8EFF8;
  --warm:#E07A4F;
  --warm-light:#FBEDE5;
  --bg:#F6F5F1;
  --surface:#FFFFFF;
  --surface-alt:#EEF2F7;
  --ink:#1E2A36;
  --ink-2:#5E6B78;
  --ink-3:#8A95A1;
  --line:#E3E7EC;
  --r-lg:18px;
  --r-md:12px;
  --r-sm:10px;
  --shadow:0 8px 28px rgba(30,42,54,.07);
  --shadow-hover:0 14px 36px rgba(30,42,54,.11);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;padding:0;
  font-family:var(--font);
  font-size:16px;line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
a:hover{color:var(--brand-dark)}
button{font-family:inherit}
input,textarea,select{font-family:inherit;font-size:15px}
::selection{background:var(--brand-light);color:var(--brand-dark)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;
}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}

/* ---------- buttons ---------- */
.btn-main,.btn-line,.btn-warm{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:11px 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1.2;border:1px solid transparent;
  cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-main{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(63,108,168,.24)}
.btn-main:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(63,108,168,.3)}
.btn-main:active{transform:translateY(0);box-shadow:0 4px 12px rgba(63,108,168,.24)}
.btn-line{background:#fff;color:var(--brand);border-color:#C9D8EC}
.btn-line:hover{background:var(--brand-light);color:var(--brand-dark);border-color:#B7CCE8;transform:translateY(-2px)}
.btn-warm{background:var(--warm);color:#fff;box-shadow:0 6px 18px rgba(224,122,79,.26)}
.btn-warm:hover{background:#CD6A41;color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(224,122,79,.32)}
.btn-warm:active{transform:translateY(0)}
.btn-block{width:100%}
.btn-sm{min-height:38px;padding:8px 16px;font-size:13.5px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  box-shadow:0 1px 0 rgba(30,42,54,.06);
}
.nav-main{display:flex;align-items:center;gap:16px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink)}
.brand-mark{
  width:42px;height:42px;border-radius:13px;flex:0 0 auto;
  background:linear-gradient(140deg,#3F6CA8,#5B86C4);
  display:grid;place-items:center;color:#fff;font-size:17px;
  box-shadow:0 8px 18px rgba(63,108,168,.28);
}
.brand-text strong{display:block;font-size:18px;font-weight:700;line-height:1.2;letter-spacing:-.01em}
.brand-text small{display:block;font-size:11.5px;color:var(--ink-3);letter-spacing:.02em;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-links a{
  display:inline-flex;align-items:center;height:40px;padding:0 13px;border-radius:var(--r-sm);
  font-size:14.5px;font-weight:500;color:var(--ink-2);white-space:nowrap;
}
.nav-links a:hover{color:var(--brand);background:var(--brand-light)}
.nav-links a.active{color:var(--brand);background:var(--brand-light);font-weight:600}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.city-wrap{position:relative}
.city-trigger{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 15px;
  border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);
  font-size:14px;font-weight:600;color:var(--ink);cursor:pointer;transition:.18s;
}
.city-trigger:hover{border-color:#B7CCE8;background:var(--brand-light);color:var(--brand)}
.city-trigger i.fa-location-dot{color:var(--warm)}
.city-trigger .fa-angle-down{font-size:11px;color:var(--ink-3)}
.city-menu{
  position:absolute;right:0;top:calc(100% + 10px);width:328px;padding:16px;
  border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-hover);background:#fff;z-index:1040;
}
.city-menu-title{font-size:12px;font-weight:700;color:var(--ink-3);letter-spacing:.06em;margin:14px 0 8px}
.city-search{
  display:flex;align-items:center;gap:8px;height:42px;padding:0 12px;
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-sm);
}
.city-search i{color:var(--ink-3);font-size:13px}
.city-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--ink)}
.city-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.city-grid button{
  height:38px;border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);
  font-size:13.5px;color:var(--ink-2);cursor:pointer;transition:.18s;
}
.city-grid button:hover{background:var(--brand-light);border-color:#B7CCE8;color:var(--brand)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:var(--r-sm);color:var(--ink);font-size:17px;cursor:pointer;
}
.nav-toggle:hover{background:var(--brand-light);color:var(--brand);border-color:#B7CCE8}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(30,42,54,.45);opacity:0;visibility:hidden;
  transition:.25s;z-index:1090;
}
.drawer-mask.show{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(88vw,360px);background:#fff;z-index:1100;
  transform:translateX(102%);transition:transform .28s ease;
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;
  box-shadow:-16px 0 40px rgba(30,42,54,.16);
}
.drawer.show{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;gap:12px}
.drawer-close{
  width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);
  background:#fff;font-size:16px;color:var(--ink);cursor:pointer;flex:0 0 auto;
}
.drawer-close:hover{background:var(--brand-light);color:var(--brand)}
.drawer-city{background:var(--surface-alt);border-radius:var(--r-md);padding:14px;margin-bottom:16px}
.drawer-city p{margin:0 0 10px;font-size:13.5px;color:var(--ink-2);display:flex;align-items:center;gap:7px}
.drawer-city p i{color:var(--warm)}
.drawer-city-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.drawer-city-grid button{
  height:38px;border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);
  font-size:13.5px;color:var(--ink-2);cursor:pointer;transition:.18s;
}
.drawer-city-grid button:hover{background:var(--brand-light);color:var(--brand);border-color:#B7CCE8}
.drawer-links{display:flex;flex-direction:column;gap:4px;margin-bottom:18px}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:46px;padding:0 14px;border-radius:var(--r-sm);
  font-size:15px;font-weight:500;color:var(--ink-2);
}
.drawer-links a:hover,.drawer-links a.active{background:var(--brand-light);color:var(--brand)}
.drawer-links a::after{content:"\f054";font-family:"Font Awesome 6 Free";font-weight:900;font-size:11px;color:var(--ink-3)}

/* ---------- page main ---------- */
.page-main{padding:30px 0 76px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:20px}
.crumb i{font-size:10px;color:#B9C3CE}
.crumb a{color:var(--ink-3)}
.crumb a:hover{color:var(--brand)}
.crumb .cur{color:var(--brand);font-weight:600;overflow-wrap:anywhere}
.article-head{padding-bottom:24px;border-bottom:1px solid var(--line)}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;letter-spacing:.06em;
  color:var(--brand);background:var(--brand-light);
  padding:6px 12px;border-radius:999px;margin-bottom:14px;
}
.eyebrow--warm{color:#A9522C;background:var(--warm-light)}
h1.article-title{
  font-size:36px;line-height:1.36;font-weight:700;letter-spacing:-.015em;
  margin:0 0 16px;color:var(--ink);overflow-wrap:anywhere;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13.5px;color:var(--ink-3)}
.meta-chip{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--brand-light);color:var(--brand);
  border-radius:999px;padding:5px 12px;font-size:12.5px;font-weight:600;
}
.meta-row .sep{width:4px;height:4px;border-radius:50%;background:#C7D0DA}
.article-cover{margin-top:26px;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow)}
.article-cover img{width:100%;aspect-ratio:16/8.2;object-fit:cover}

.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;
  align-items:start;margin-top:38px;
}
.entry-col{min-width:0}
.entry{
  max-width:760px;font-size:16.5px;line-height:1.9;color:#243140;
  overflow-wrap:break-word;
}
.entry p{margin:0 0 18px}
.entry h2{
  font-size:24px;line-height:1.5;margin:38px 0 16px;padding-left:14px;
  border-left:4px solid var(--warm);color:var(--ink);font-weight:700;
}
.entry h3{font-size:19.5px;line-height:1.55;margin:28px 0 12px;color:var(--ink);font-weight:700}
.entry h4{font-size:17px;margin:22px 0 10px;color:var(--ink);font-weight:700}
.entry ul,.entry ol{padding-left:22px;margin:0 0 18px}
.entry li{margin-bottom:8px}
.entry img{border-radius:var(--r-md);margin:20px 0;box-shadow:var(--shadow);height:auto}
.entry figure{margin:22px 0}
.entry figcaption,.entry .caption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:8px}
.entry blockquote{
  margin:24px 0;padding:16px 20px;background:var(--brand-light);
  border-left:4px solid var(--brand);border-radius:var(--r-md);color:#33465C;
}
.entry blockquote p:last-child{margin-bottom:0}
.entry table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px}
.entry th,.entry td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.entry th{background:var(--surface-alt);font-weight:600;color:var(--ink)}
.entry tr:nth-child(even) td{background:#FAFBFC}
.entry pre{
  background:#1E2A36;color:#E3E9F1;padding:16px 18px;border-radius:var(--r-md);
  overflow:auto;font-size:14px;line-height:1.7;margin:22px 0;
}
.entry code{background:var(--surface-alt);padding:2px 6px;border-radius:6px;font-size:14px;color:var(--brand-dark)}
.entry pre code{background:transparent;color:inherit;padding:0}
.entry a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.entry a:hover{color:var(--warm)}
.entry hr{border:0;border-top:1px solid var(--line);margin:30px 0}

.empty-state{
  background:var(--surface);border:1px dashed #C9D8EC;border-radius:var(--r-lg);
  padding:52px 24px;text-align:center;box-shadow:var(--shadow);
}
.empty-state i{font-size:34px;color:var(--brand);margin-bottom:14px;display:block}
.empty-state h2{font-size:20px;margin:0 0 8px;color:var(--ink)}
.empty-state p{margin:0 0 20px;font-size:14.5px;color:var(--ink-2)}

/* ---------- tag & share ---------- */
.tag-share{
  display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;
  margin-top:34px;padding:20px 22px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow);
}
.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--warm-light);color:#A9522C;
  border-radius:999px;padding:5px 13px;font-size:12.5px;font-weight:600;
}
.tag--blue{background:var(--brand-light);color:var(--brand)}
.share-group{display:flex;flex-wrap:wrap;gap:8px}
.share-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  min-height:40px;padding:0 14px;border:1px solid var(--line);background:#fff;
  border-radius:var(--r-sm);font-size:13.5px;color:var(--ink-2);cursor:pointer;transition:.2s;
}
.share-btn:hover{border-color:#B7CCE8;color:var(--brand);background:var(--brand-light)}
.share-btn:active{transform:translateY(1px)}

/* ---------- author ---------- */
.author-card{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow);margin-top:22px;
}
.avatar{
  width:56px;height:56px;border-radius:50%;flex:0 0 auto;
  background:linear-gradient(140deg,#3F6CA8,#6E97CE);color:#fff;
  display:grid;place-items:center;font-weight:700;font-size:17px;
  box-shadow:0 8px 18px rgba(63,108,168,.24);
}
.author-card h3{font-size:16.5px;margin:0 0 6px;color:var(--ink)}
.author-card p{margin:0 0 10px;font-size:14px;line-height:1.8;color:var(--ink-2)}
.author-card .author-link{font-size:13.5px;font-weight:600}

/* ---------- sidebar ---------- */
.side{position:sticky;top:96px;display:grid;gap:18px}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--shadow);
}
.side-card h3{font-size:15.5px;margin:0 0 14px;color:var(--ink);display:flex;align-items:center;gap:8px}
.side-card h3 i{color:var(--warm);font-size:13px}
.info-list{list-style:none;padding:0;margin:0;font-size:13.8px;color:var(--ink-2)}
.info-list li{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px dashed var(--line)}
.info-list li:last-child{border-bottom:0;padding-bottom:0}
.info-list span:first-child{color:var(--ink-3)}
.info-list span:last-child{color:var(--ink);font-weight:500;text-align:right;overflow-wrap:anywhere}
.thread-list{list-style:none;padding:0;margin:0}
.thread-list li{padding:11px 0;border-bottom:1px dashed var(--line)}
.thread-list li:last-child{border-bottom:0;padding-bottom:0}
.thread-list a{display:block;font-size:14px;line-height:1.6;color:var(--ink);font-weight:500}
.thread-list a:hover{color:var(--brand)}
.thread-list small{display:block;margin-top:4px;font-size:12px;color:var(--ink-3)}
.side-cta{background:linear-gradient(140deg,#3F6CA8,#345A8C);color:#fff;border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow)}
.side-cta h3{font-size:16.5px;margin:0 0 8px;color:#fff}
.side-cta p{margin:0 0 16px;font-size:13.5px;line-height:1.8;color:#D6E1EF}
.side-cta .btn-line{background:#fff;border-color:#fff;color:var(--brand)}
.side-cta .btn-line:hover{background:#E8EFF8;color:var(--brand-dark)}

/* ---------- sections ---------- */
.section{padding:64px 0}
.section--white{background:var(--surface)}
.section--alt{background:var(--surface-alt)}
.section-head{max-width:760px;margin-bottom:30px}
h2.sec-title{font-size:28px;line-height:1.4;font-weight:700;letter-spacing:-.01em;color:var(--ink);margin:0}
.section-lead{margin-top:10px;font-size:15px;line-height:1.85;color:var(--ink-2)}

/* ---------- related ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rel-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#C9D8EC}
.rel-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.rel-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.rel-body h3{font-size:16.5px;line-height:1.55;margin:0;color:var(--ink)}
.rel-card:hover .rel-body h3{color:var(--brand)}
.rel-meta{margin-top:auto;font-size:12.5px;color:var(--ink-3);display:flex;flex-wrap:wrap;gap:10px}

/* ---------- hot threads ---------- */
.hot-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.hot-item{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px 18px;transition:.2s;box-shadow:var(--shadow);
}
.hot-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#C9D8EC}
.hot-num{
  width:30px;height:30px;border-radius:9px;flex:0 0 auto;
  background:var(--brand-light);color:var(--brand);font-size:13.5px;font-weight:700;
  display:grid;place-items:center;
}
.hot-item h3{font-size:15px;line-height:1.55;margin:0 0 6px;color:var(--ink)}
.hot-item:hover h3{color:var(--brand)}
.hot-item small{font-size:12.5px;color:var(--ink-3)}

/* ---------- cta band ---------- */
.cta-band{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  background:linear-gradient(135deg,#3F6CA8,#345A8C 70%);
  border-radius:var(--r-lg);padding:38px 40px;color:#fff;
  box-shadow:0 14px 36px rgba(52,90,140,.24);
}
.cta-band h2{font-size:25px;line-height:1.45;margin:0 0 8px;color:#fff}
.cta-band p{margin:0;font-size:14.5px;line-height:1.8;color:#D6E1EF;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-band .btn-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.cta-band .btn-line:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}
.cta-band .btn-warm{box-shadow:0 8px 20px rgba(224,122,79,.32)}
.back-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}

/* ---------- footer ---------- */
.site-footer{background:#1E2A36;color:#C9D2DC;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.55fr 1fr 1fr 1fr;gap:32px;padding-bottom:36px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;margin-bottom:14px}
.footer-brand strong{display:block;font-size:17px;font-weight:700;line-height:1.3}
.footer-brand small{display:block;font-size:11.5px;color:#93A1B0;margin-top:2px}
.footer-about{font-size:14px;line-height:1.85;color:#A9B6C3;margin:0 0 14px;max-width:350px}
.footer-full{
  display:inline-block;font-size:12px;color:#8FA0B0;
  border:1px solid rgba(255,255,255,.14);border-radius:999px;padding:5px 12px;
}
.footer-col h4{color:#fff;font-size:15px;margin:0 0 14px;font-weight:600}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin-bottom:9px}
.footer-col a{color:#A9B6C3;font-size:14px}
.footer-col a:hover{color:var(--warm)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  border-top:1px solid rgba(255,255,255,.1);padding:18px 0;font-size:13px;color:#8FA0B0;
}
.to-top{
  background:transparent;border:1px solid rgba(255,255,255,.2);color:#C9D2DC;
  border-radius:var(--r-sm);padding:8px 14px;font-size:13px;cursor:pointer;transition:.2s;
  display:inline-flex;align-items:center;gap:6px;
}
.to-top:hover{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.35)}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 282px;gap:34px}
  h1.article-title{font-size:32px}
}
@media (max-width:992px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .city-wrap{display:none}
  .nav-main{min-height:66px}
  .article-layout{grid-template-columns:1fr;gap:36px}
  .side{position:static;grid-template-columns:repeat(2,1fr)}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  h1.article-title{font-size:29px}
  .cta-band{padding:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .page-main{padding:22px 0 56px}
  h1.article-title{font-size:26px}
  .entry{font-size:16px;line-height:1.85}
  .entry h2{font-size:21px}
  .entry h3{font-size:18px}
  .section{padding:44px 0}
  h2.sec-title{font-size:23px}
  .hot-grid{grid-template-columns:1fr}
  .side{grid-template-columns:1fr}
  .article-cover img{aspect-ratio:16/10}
  .tag-share{padding:18px}
  .cta-band{padding:26px 22px}
  .cta-band h2{font-size:21px}
  .cta-actions{width:100%}
  .cta-actions .btn-main,.cta-actions .btn-line,.cta-actions .btn-warm{flex:1 1 100%}
}
@media (max-width:576px){
  .wrap{padding:0 16px}
  h1.article-title{font-size:23px}
  .rel-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:24px;padding-bottom:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .author-card{padding:18px}
  .side-card{padding:18px}
  .share-btn{flex:1 1 auto}
}

/* roulang page: category1 */
:root{
  --brand:#3F6CA8;
  --brand-dark:#345A8C;
  --brand-light:#E8EFF8;
  --warm:#E07A4F;
  --warm-light:#FBEDE5;
  --bg:#F6F5F1;
  --surface:#FFFFFF;
  --surface-alt:#EEF2F7;
  --ink:#1E2A36;
  --ink-2:#5E6B78;
  --ink-3:#8A95A1;
  --line:#E3E7EC;
  --r-lg:18px;
  --r-md:12px;
  --r-sm:10px;
  --shadow:0 8px 28px rgba(30,42,54,.07);
  --shadow-hover:0 14px 36px rgba(30,42,54,.11);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;padding:0;font-family:var(--font);font-size:16px;line-height:1.75;
  color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease}
a:hover{color:var(--brand-dark)}
button{font-family:inherit}
input,textarea,select{font-family:inherit;font-size:15px}
::selection{background:var(--brand-light);color:var(--brand-dark)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;
}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}

/* ============ buttons ============ */
.btn-main,.btn-line,.btn-warm{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:11px 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1.2;border:1px solid transparent;
  cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-main{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(63,108,168,.24)}
.btn-main:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(63,108,168,.3)}
.btn-main:active{transform:translateY(0);box-shadow:0 4px 12px rgba(63,108,168,.24)}
.btn-line{background:#fff;color:var(--brand);border-color:#C9D8EC}
.btn-line:hover{background:var(--brand-light);color:var(--brand-dark);border-color:#B7CCE8;transform:translateY(-2px)}
.btn-line:active{transform:translateY(0)}
.btn-warm{background:var(--warm);color:#fff;box-shadow:0 6px 18px rgba(224,122,79,.26)}
.btn-warm:hover{background:#CD6A41;color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(224,122,79,.32)}
.btn-sm{min-height:40px;padding:8px 16px;font-size:14px}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.97);
  backdrop-filter:blur(10px);box-shadow:0 1px 0 rgba(30,42,54,.06);
}
.nav-main{display:flex;align-items:center;gap:16px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink)}
.brand-mark{
  width:42px;height:42px;border-radius:13px;flex:0 0 auto;
  background:linear-gradient(140deg,#3F6CA8,#5B86C4);
  display:grid;place-items:center;color:#fff;font-size:17px;
  box-shadow:0 8px 18px rgba(63,108,168,.28);
}
.brand-text strong{display:block;font-size:18px;font-weight:700;line-height:1.2;letter-spacing:-.01em}
.brand-text small{display:block;font-size:11.5px;color:var(--ink-3);letter-spacing:.02em;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-links a{
  display:inline-flex;align-items:center;height:40px;padding:0 13px;border-radius:var(--r-sm);
  font-size:14.5px;font-weight:500;color:var(--ink-2);white-space:nowrap;
}
.nav-links a:hover{color:var(--brand);background:var(--brand-light)}
.nav-links a.active{color:var(--brand);background:var(--brand-light);font-weight:600}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.city-dd{position:relative}
.city-trigger{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 14px;
  border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);
  font-size:14px;font-weight:600;color:var(--ink);cursor:pointer;transition:.18s;
}
.city-trigger:hover{border-color:#B7CCE8;background:var(--brand-light)}
.city-trigger i.fa-location-dot{color:var(--warm)}
.city-trigger .fa-angle-down{font-size:11px;color:var(--ink-3);transition:transform .2s}
.city-dd.open .city-trigger .fa-angle-down{transform:rotate(180deg)}
.city-menu{
  position:absolute;right:0;top:calc(100% + 8px);
  width:330px;padding:16px;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-hover);background:#fff;
  opacity:0;visibility:hidden;transform:translateY(-6px);transition:.22s;z-index:20;
}
.city-dd.open .city-menu{opacity:1;visibility:visible;transform:translateY(0)}
.city-menu-title{font-size:12px;font-weight:700;color:var(--ink-3);letter-spacing:.06em;margin:14px 0 8px}
.city-search{
  display:flex;align-items:center;gap:8px;height:42px;padding:0 12px;
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-sm);
}
.city-search i{color:var(--ink-3);font-size:13px}
.city-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--ink)}
.city-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.city-grid button{
  height:38px;border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);
  font-size:13.5px;color:var(--ink-2);cursor:pointer;transition:.18s;
}
.city-grid button:hover{background:var(--brand-light);border-color:#B7CCE8;color:var(--brand)}
.city-grid button.is-cur{background:var(--brand-light);border-color:#B7CCE8;color:var(--brand);font-weight:600}
.city-menu .btn-warm{margin-top:14px;width:100%}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:var(--r-sm);color:var(--ink);font-size:17px;cursor:pointer;
}
/* drawer */
.drawer-mask{position:fixed;inset:0;background:rgba(30,42,54,.45);opacity:0;visibility:hidden;transition:.25s;z-index:1090}
.drawer-mask.show{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(88vw,360px);background:#fff;z-index:1100;
  transform:translateX(102%);transition:transform .28s ease;
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;
  box-shadow:-16px 0 40px rgba(30,42,54,.16);
}
.drawer.show{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;font-size:16px;color:var(--ink);cursor:pointer}
.drawer-city{background:var(--surface-alt);border-radius:var(--r-md);padding:14px;margin-bottom:16px}
.drawer-city p{margin:0 0 10px;font-size:12px;font-weight:700;color:var(--ink-3);letter-spacing:.06em}
.drawer-city strong{display:block;font-size:16px;margin-bottom:10px}
.drawer-links{display:flex;flex-direction:column;gap:4px;margin-bottom:18px}
.drawer-links a{display:flex;align-items:center;justify-content:space-between;min-height:46px;padding:0 14px;border-radius:var(--r-sm);font-size:15px;font-weight:500;color:var(--ink-2)}
.drawer-links a:hover{background:var(--brand-light);color:var(--brand)}
.drawer-links a.active{background:var(--brand-light);color:var(--brand);font-weight:600}

/* ============ layout blocks ============ */
.section{padding:72px 0}
.section--white{background:var(--surface)}
.section--alt{background:var(--surface-alt)}
.section--paper{background:var(--bg)}
.section-head{max-width:760px;margin-bottom:34px}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;letter-spacing:.08em;
  color:var(--brand);background:var(--brand-light);padding:6px 12px;border-radius:999px;margin-bottom:14px;
}
.eyebrow--warm{color:#A9522C;background:var(--warm-light)}
h2.sec-title{font-size:29px;line-height:1.35;font-weight:700;letter-spacing:-.01em;color:var(--ink);margin:0}
.sec-title--lg{font-size:33px}
.section-lead{margin:12px 0 0;font-size:15.5px;line-height:1.85;color:var(--ink-2);max-width:740px}
.badge-soft{
  display:inline-flex;align-items:center;gap:5px;padding:4px 10px;border-radius:999px;
  font-size:11.5px;font-weight:600;background:var(--brand-light);color:var(--brand-dark);
}
.badge-warm{background:var(--warm-light);color:#A9522C}

/* ============ page head ============ */
.page-head{background:linear-gradient(180deg,#EEF2F7 0%,#F6F5F1 100%);padding:36px 0 56px;border-bottom:1px solid var(--line)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:18px}
.crumb a{color:var(--ink-3)}
.crumb a:hover{color:var(--brand)}
.crumb i{font-size:10px;color:#B4BDC7}
.crumb .cur{color:var(--brand);font-weight:600}
.page-head h1{font-size:clamp(28px,3.6vw,42px);line-height:1.28;font-weight:700;letter-spacing:-.015em;margin:0 0 14px;color:var(--ink)}
.page-head h1 span{color:var(--brand)}
.page-head p.lead-text{font-size:16px;line-height:1.85;color:var(--ink-2);max-width:760px;margin:0 0 22px}
.loc-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:14px 18px;box-shadow:var(--shadow);max-width:860px;
}
.loc-bar .loc-item{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;color:var(--ink-2)}
.loc-bar .loc-item strong{color:var(--ink);font-weight:700}
.loc-bar .loc-item i{color:var(--warm);font-size:13px}
.loc-bar .divider{width:1px;height:16px;background:var(--line)}
.loc-bar .loc-link{margin-left:auto;font-size:13.5px;font-weight:600}

/* ============ filter chips ============ */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.chip{
  display:inline-flex;align-items:center;gap:7px;min-height:40px;padding:8px 16px;
  border-radius:999px;border:1px solid #D8E1EC;background:#fff;
  font-size:13.5px;font-weight:600;color:var(--ink-2);transition:.18s;
}
.chip i{font-size:12px;color:var(--brand)}
.chip:hover{background:var(--brand-light);border-color:#B7CCE8;color:var(--brand);transform:translateY(-2px)}
.chip.is-on{background:var(--brand);border-color:var(--brand);color:#fff}
.chip.is-on i{color:#fff}

/* ============ feature mosaic ============ */
.mosaic{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.f-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.f-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#CBDCEE}
.f-ico{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:var(--brand-light);color:var(--brand);font-size:18px;margin-bottom:14px;
}
.f-ico.warm{background:var(--warm-light);color:var(--warm)}
.f-card h3{font-size:19px;font-weight:700;margin:0 0 8px;letter-spacing:-.01em}
.f-card p{margin:0;font-size:14px;line-height:1.8;color:var(--ink-2)}
.f-card .f-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.f-card.wide{
  grid-column:span 2;display:grid;grid-template-columns:1.25fr .75fr;gap:24px;align-items:center;
  background:linear-gradient(120deg,#FFFFFF 0%,#F4F7FB 100%);
}
.f-card.wide img{border-radius:var(--r-md);aspect-ratio:16/10;object-fit:cover;box-shadow:0 10px 24px rgba(30,42,54,.1)}

/* ============ steps ============ */
.steps-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:start}
.step-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px}
.step-list li{
  display:grid;grid-template-columns:44px 1fr;gap:16px;align-items:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px 22px;box-shadow:var(--shadow);transition:.2s;
}
.step-list li:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#CBDCEE}
.step-num{
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  background:var(--brand-light);color:var(--brand-dark);font-weight:700;font-size:15px;
}
.step-list h3{margin:0 0 6px;font-size:17px;font-weight:700}
.step-list p{margin:0;font-size:14px;line-height:1.8;color:var(--ink-2)}
.steps-figure{position:relative}
.steps-figure img{border-radius:var(--r-lg);aspect-ratio:4/3;object-fit:cover;box-shadow:var(--shadow)}
.float-card{
  position:absolute;left:-14px;bottom:18px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);padding:14px 16px;box-shadow:var(--shadow-hover);min-width:180px;
}
.float-card strong{display:block;font-size:22px;color:var(--warm);font-weight:700;line-height:1.2}
.float-card small{display:block;font-size:12px;color:var(--ink-3);margin-top:4px}

/* ============ channels + city ============ */
.channel-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:32px;align-items:start}
.channel-cards{display:flex;flex-direction:column;gap:12px}
.channel-card{
  display:grid;grid-template-columns:44px 1fr auto;gap:14px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px 18px;box-shadow:var(--shadow);transition:.2s;
}
.channel-card:hover{transform:translateY(-2px);border-color:#CBDCEE;box-shadow:var(--shadow-hover);color:var(--ink)}
.channel-card .c-ico{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:var(--brand-light);color:var(--brand);font-size:17px}
.channel-card strong{display:block;font-size:16px;color:var(--ink);line-height:1.4}
.channel-card small{display:block;font-size:12.5px;color:var(--ink-3);margin-top:2px}
.channel-card .fa-arrow-right{color:var(--ink-3);font-size:13px}
.city-panel{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow)}
.city-panel h3{margin:0 0 6px;font-size:18px;font-weight:700}
.city-panel p{margin:0 0 18px;font-size:13.5px;color:var(--ink-2);line-height:1.75}
.city-rows{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.city-rows button{
  min-height:44px;border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);
  font-size:14px;color:var(--ink-2);cursor:pointer;transition:.18s;
}
.city-rows button:hover{background:var(--brand-light);border-color:#B7CCE8;color:var(--brand)}
.city-rows button.more{background:var(--warm-light);border-color:#F3D3C2;color:#A9522C;font-weight:600}
.city-rows button.more:hover{background:#F8E2D7;color:#93441F}
.city-note{margin-top:16px;font-size:12.5px;color:var(--ink-3);display:flex;align-items:center;gap:8px}

/* ============ topic list ============ */
.topic-list{display:flex;flex-direction:column;gap:12px}
.topic-row{
  display:grid;grid-template-columns:40px 1fr auto;gap:16px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px 20px;box-shadow:var(--shadow);transition:.2s;
}
.topic-row:hover{transform:translateY(-2px);border-color:#CBDCEE;box-shadow:var(--shadow-hover)}
.topic-idx{font-size:16px;font-weight:700;color:#C3CDD8;text-align:center}
.topic-row:nth-child(1) .topic-idx,.topic-row:nth-child(2) .topic-idx,.topic-row:nth-child(3) .topic-idx{color:var(--warm)}
.topic-main strong{display:block;font-size:15.5px;font-weight:600;color:var(--ink);line-height:1.5}
.topic-main .t-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:8px;font-size:12.5px;color:var(--ink-3)}
.topic-stat{font-size:12.5px;color:var(--ink-3);white-space:nowrap;text-align:right}
.topic-stat b{display:block;color:var(--brand);font-size:14px}
.list-foot{margin-top:24px;display:flex;justify-content:center}

/* ============ safety ============ */
.safety-layout{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.safety-figure img{border-radius:var(--r-lg);aspect-ratio:4/3;object-fit:cover;box-shadow:var(--shadow)}
.check-list{list-style:none;margin:22px 0 0;padding:0;display:flex;flex-direction:column;gap:12px}
.check-list li{display:grid;grid-template-columns:26px 1fr;gap:12px;font-size:14.5px;line-height:1.75;color:var(--ink-2)}
.check-list li i{color:#3F9A6E;font-size:15px;margin-top:4px}
.check-list li b{color:var(--ink);font-weight:600}

/* ============ faq ============ */
.faq-acc .accordion-item{
  border:1px solid var(--line);border-radius:var(--r-md)!important;
  margin-bottom:12px;overflow:hidden;background:#fff;box-shadow:var(--shadow);
}
.faq-acc .accordion-button{
  font-weight:700;font-size:16px;color:var(--ink);background:#fff;
  padding:18px 20px;box-shadow:none;line-height:1.5;
}
.faq-acc .accordion-button:not(.collapsed){background:var(--brand-light);color:var(--brand-dark)}
.faq-acc .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq-acc .accordion-button::after{
  background-image:none;content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:12px;color:var(--ink-3);width:auto;height:auto;transition:transform .2s;
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(180deg);color:var(--brand)}
.faq-acc .accordion-body{padding:0 20px 20px;font-size:14.5px;line-height:1.85;color:var(--ink-2)}
.faq-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:32px;align-items:start}
.faq-aside{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow);
}
.faq-aside h3{margin:0 0 8px;font-size:17px;font-weight:700}
.faq-aside p{margin:0 0 18px;font-size:13.5px;color:var(--ink-2);line-height:1.8}

/* ============ cta band ============ */
.cta-band{
  background:linear-gradient(135deg,#E8EFF8 0%,#F6F5F1 60%,#FBEDE5 100%);
  border:1px solid #DCE6F2;border-radius:var(--r-lg);
  padding:36px 34px;display:grid;grid-template-columns:1fr auto;gap:26px;align-items:center;
  box-shadow:var(--shadow);
}
.cta-band h2{margin:0 0 8px;font-size:26px;font-weight:700;letter-spacing:-.01em}
.cta-band p{margin:0;font-size:14.5px;color:var(--ink-2);line-height:1.8;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ footer ============ */
.site-footer{background:#1E2A36;color:#C9D2DC;padding:56px 0 0;margin-top:72px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:40px;height:40px;border-radius:12px;background:linear-gradient(140deg,#3F6CA8,#5B86C4);display:grid;place-items:center;color:#fff;font-size:16px}
.footer-brand strong{display:block;color:#fff;font-size:17px;line-height:1.2}
.footer-brand small{display:block;font-size:11.5px;color:#8FA0B1;margin-top:3px}
.footer-about{margin:0 0 14px;font-size:13.5px;line-height:1.85;color:#9FB0C0;max-width:340px}
.footer-full{display:inline-block;font-size:12px;color:#7E8FA0;letter-spacing:.02em}
.footer-col h4{margin:0 0 14px;font-size:14px;font-weight:700;color:#fff;letter-spacing:.02em}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:13.5px;color:#9FB0C0}
.footer-col a:hover{color:var(--warm)}
.footer-bottom{
  margin-top:40px;border-top:1px solid rgba(255,255,255,.1);
  padding:18px 0 22px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:12.5px;color:#8FA0B1;
}
.to-top{
  display:inline-flex;align-items:center;gap:7px;min-height:40px;padding:8px 16px;
  border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.18);background:transparent;
  color:#C9D2DC;font-size:13px;cursor:pointer;transition:.2s;
}
.to-top:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.3)}

/* ============ responsive ============ */
@media (max-width:1200px){
  .nav-links a{padding:0 10px;font-size:14px}
  .section{padding:64px 0}
}
@media (max-width:992px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .city-dd{display:none}
  .nav-main{min-height:66px}
  .mosaic{grid-template-columns:1fr}
  .f-card.wide{grid-column:span 1;grid-template-columns:1fr}
  .steps-layout,.channel-layout,.safety-layout,.faq-layout{grid-template-columns:1fr;gap:26px}
  .float-card{position:static;margin-top:14px;left:auto;bottom:auto}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{grid-template-columns:1fr;padding:28px}
  .page-head{padding:26px 0 40px}
}
@media (max-width:768px){
  .section{padding:44px 0}
  h2.sec-title,.sec-title--lg{font-size:24px}
  .page-head h1{font-size:30px}
  .city-rows{grid-template-columns:repeat(2,1fr)}
  .city-grid{grid-template-columns:repeat(2,1fr)}
  .topic-row{grid-template-columns:32px 1fr;row-gap:10px}
  .topic-stat{grid-column:2;text-align:left;display:flex;gap:14px;align-items:center}
  .topic-stat b{display:inline;margin-right:4px}
  .cta-actions{width:100%}
  .cta-actions .btn-main,.cta-actions .btn-line{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-about{max-width:none}
  .loc-bar{padding:12px 14px}
  .loc-bar .loc-link{margin-left:0;width:100%}
}
@media (max-width:576px){
  .wrap{padding:0 16px}
  .brand-text strong{font-size:16px}
  .brand-text small{font-size:10.5px}
  .f-card,.step-list li,.city-panel,.faq-aside{padding:18px}
  .page-head h1{font-size:26px}
  .page-head p.lead-text{font-size:15px}
  .topic-row{padding:14px 16px}
  .cta-band{padding:22px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category2 */
:root{
  --brand:#3F6CA8;
  --brand-dark:#345A8C;
  --brand-light:#E8EFF8;
  --warm:#E07A4F;
  --warm-light:#FBEDE5;
  --bg:#F6F5F1;
  --surface:#FFFFFF;
  --surface-alt:#EEF2F7;
  --ink:#1E2A36;
  --ink-2:#5E6B78;
  --ink-3:#8A95A1;
  --line:#E3E7EC;
  --r-lg:18px;
  --r-md:12px;
  --r-sm:10px;
  --shadow:0 8px 28px rgba(30,42,54,.07);
  --shadow-hover:0 14px 36px rgba(30,42,54,.11);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;padding:0;
  font-family:var(--font);
  font-size:16px;line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
a:hover{color:var(--brand-dark)}
button{font-family:inherit}
input,textarea,select{font-family:inherit;font-size:15px}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;
}
::selection{background:var(--brand-light);color:var(--ink)}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
.section{padding:72px 0}
.section--white{background:var(--surface)}
.section--alt{background:var(--surface-alt)}
.section--paper{background:var(--bg)}
.section-head{max-width:760px;margin-bottom:34px}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;letter-spacing:.08em;
  color:var(--brand);background:var(--brand-light);
  padding:6px 12px;border-radius:999px;margin-bottom:14px;
}
.eyebrow--warm{color:#A9522C;background:var(--warm-light)}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em}
h2.sec-title{font-size:30px;line-height:1.35;font-weight:700;color:var(--ink)}
.sec-title--lg{font-size:33px}
.section-lead{margin-top:12px;font-size:15.5px;line-height:1.85;color:var(--ink-2);max-width:730px}
/* buttons */
.btn-main,.btn-line,.btn-warm{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:11px 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1.2;border:1px solid transparent;
  cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-main{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(63,108,168,.24)}
.btn-main:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(63,108,168,.3)}
.btn-main:active{transform:translateY(0);box-shadow:0 4px 12px rgba(63,108,168,.24)}
.btn-line{background:#fff;color:var(--brand);border-color:#C9D8EC}
.btn-line:hover{background:var(--brand-light);color:var(--brand-dark);border-color:#B7CCE8;transform:translateY(-2px)}
.btn-line:active{transform:translateY(0)}
.btn-warm{background:var(--warm);color:#fff;box-shadow:0 6px 18px rgba(224,122,79,.26)}
.btn-warm:hover{background:#CD6A41;color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(224,122,79,.32)}
.btn-warm:active{transform:translateY(0);box-shadow:0 4px 12px rgba(224,122,79,.26)}
.btn-sm{min-height:40px;padding:9px 16px;font-size:13.5px}
.btn-block{width:100%}
/* badges */
.badge-soft,.badge-warm,.badge-city{
  display:inline-flex;align-items:center;gap:5px;
  padding:4px 11px;border-radius:999px;font-size:11.5px;font-weight:600;line-height:1.6;
}
.badge-soft{background:var(--brand-light);color:#2F5688}
.badge-warm{background:var(--warm-light);color:#A9522C}
.badge-city{background:#F1F3F6;color:var(--ink-2);font-weight:500}
/* header */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(10px);
  box-shadow:0 1px 0 rgba(30,42,54,.06);
}
.nav-main{display:flex;align-items:center;gap:16px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink)}
.brand-mark{
  width:42px;height:42px;border-radius:13px;flex:0 0 auto;
  background:linear-gradient(140deg,#3F6CA8,#5B86C4);
  display:grid;place-items:center;color:#fff;font-size:17px;
  box-shadow:0 8px 18px rgba(63,108,168,.28);
}
.brand-text strong{display:block;font-size:18px;font-weight:700;line-height:1.2;letter-spacing:-.01em}
.brand-text small{display:block;font-size:11.5px;color:var(--ink-3);letter-spacing:.02em;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-links a{
  display:inline-flex;align-items:center;height:40px;padding:0 13px;border-radius:var(--r-sm);
  font-size:14.5px;font-weight:500;color:var(--ink-2);white-space:nowrap;
}
.nav-links a:hover{color:var(--brand);background:var(--brand-light)}
.nav-links a.active{color:var(--brand);background:var(--brand-light);font-weight:600}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.city-trigger{
  display:inline-flex;align-items:center;gap:7px;
  height:42px;padding:0 14px;border-radius:var(--r-sm);
  background:#fff;border:1px solid var(--line);color:var(--ink);
  font-size:14px;font-weight:500;cursor:pointer;transition:.18s;
}
.city-trigger:hover{background:var(--brand-light);border-color:#B7CCE8;color:var(--brand-dark)}
.city-trigger i.fa-location-dot{color:var(--warm)}
.city-trigger .fa-angle-down{font-size:11px;color:var(--ink-3)}
.city-trigger::after{display:none}
.city-menu{
  width:330px;padding:16px;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-hover);background:#fff;margin-top:10px;
}
.city-menu-title{font-size:12px;font-weight:700;color:var(--ink-3);letter-spacing:.06em;margin:14px 0 8px}
.city-search{
  display:flex;align-items:center;gap:8px;height:42px;padding:0 12px;
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-sm);
}
.city-search i{color:var(--ink-3);font-size:13px}
.city-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--ink)}
.city-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.city-grid button{
  height:38px;border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);
  font-size:13.5px;color:var(--ink-2);cursor:pointer;transition:.18s;
}
.city-grid button:hover{background:var(--brand-light);border-color:#B7CCE8;color:var(--brand)}
.city-grid button.is-on{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:var(--r-sm);color:var(--ink);font-size:17px;cursor:pointer;
}
.city-bar{border-top:1px solid var(--line);background:#fff}
.city-bar .wrap{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  min-height:40px;font-size:13px;color:var(--ink-2);
}
.city-bar a{color:var(--brand);font-weight:500}
.city-bar a:hover{color:var(--warm)}
.city-bar .dot{width:4px;height:4px;border-radius:50%;background:#C3CBD4;display:inline-block}
/* drawer */
.drawer-mask{
  position:fixed;inset:0;background:rgba(30,42,54,.45);opacity:0;visibility:hidden;
  transition:.25s;z-index:1090;
}
.drawer-mask.show{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(88vw,360px);background:#fff;z-index:1100;
  transform:translateX(102%);transition:transform .28s ease;
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;
  box-shadow:-16px 0 40px rgba(30,42,54,.16);
}
.drawer.show{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{
  width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);
  background:#fff;font-size:16px;color:var(--ink);cursor:pointer;
}
.drawer-city{background:var(--surface-alt);border-radius:var(--r-md);padding:14px;margin-bottom:16px}
.drawer-city p{margin:0 0 10px;font-size:13px;color:var(--ink-2)}
.drawer-city strong{color:var(--ink);font-size:15px}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:46px;padding:0 14px;border-radius:var(--r-sm);
  font-size:15px;color:var(--ink);font-weight:500;
}
.drawer-nav a:hover{background:var(--brand-light);color:var(--brand)}
.drawer-nav a.active{background:var(--brand-light);color:var(--brand);font-weight:600}
.drawer-nav a i{font-size:12px;color:var(--ink-3)}
.drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line)}
.drawer-foot p{font-size:12.5px;color:var(--ink-3);margin:10px 0 0;line-height:1.7}
/* category head */
.cat-head{
  background:linear-gradient(180deg,#FFFFFF 0%,#F6F5F1 100%);
  padding:30px 0 56px;
  border-bottom:1px solid var(--line);
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:20px;flex-wrap:wrap}
.crumb a{color:var(--ink-3)}
.crumb a:hover{color:var(--brand)}
.crumb span.cur{color:var(--brand);font-weight:600}
.cat-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:start}
.cat-head h1{
  font-size:38px;line-height:1.3;font-weight:700;letter-spacing:-.02em;margin-bottom:16px;
}
.cat-head h1 em{font-style:normal;color:var(--brand);position:relative;white-space:nowrap}
.cat-head h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:8px;
  background:var(--warm-light);border-radius:4px;z-index:-1;
}
.cat-lead{font-size:16px;line-height:1.85;color:var(--ink-2);max-width:580px}
.head-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.loc-chip{
  display:inline-flex;align-items:center;gap:10px;flex-wrap:wrap;
  margin-top:22px;padding:10px 16px;background:#fff;border:1px solid var(--line);
  border-radius:999px;font-size:13.5px;color:var(--ink-2);box-shadow:var(--shadow);
}
.loc-chip i{color:var(--warm)}
.loc-chip strong{color:var(--ink)}
.loc-chip a{font-weight:600}
/* demo card */
.demo-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow);padding:24px;
}
.demo-card-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.demo-card-top h3{font-size:16.5px;font-weight:700}
.demo-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 0;border-bottom:1px dashed var(--line);font-size:14px;color:var(--ink-2);
}
.demo-row:last-of-type{border-bottom:0}
.demo-row b{color:var(--ink);font-size:15px;font-weight:700}
.demo-row .num{color:var(--warm);font-weight:700;font-size:16px}
.demo-meter{height:8px;background:var(--surface-alt);border-radius:999px;overflow:hidden;margin-top:8px}
.demo-meter i{display:block;height:100%;width:76%;background:linear-gradient(90deg,#5B86C4,#3F6CA8);border-radius:999px}
.demo-note{font-size:12.5px;color:var(--ink-3);margin:14px 0 0;line-height:1.7}
/* intro split */
.split{display:grid;grid-template-columns:1.02fr .98fr;gap:48px;align-items:center}
.split-media{position:relative}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--shadow)}
.float-card{
  position:absolute;right:-10px;bottom:-22px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--shadow-hover);padding:14px 18px;max-width:250px;
}
.float-card span{display:block;font-size:12px;color:var(--ink-3);margin-bottom:4px}
.float-card strong{font-size:15px;color:var(--ink);line-height:1.5;display:block}
.check-list{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:14px}
.check-list li{display:flex;gap:12px;font-size:14.8px;color:var(--ink-2);line-height:1.75}
.check-list li i{
  flex:0 0 auto;width:24px;height:24px;border-radius:8px;background:var(--brand-light);
  color:var(--brand);display:grid;place-items:center;font-size:11px;margin-top:3px;
}
.check-list li b{color:var(--ink);font-weight:600}
/* scene rail */
.rail-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.rail-hint{font-size:13px;color:var(--ink-3);display:inline-flex;align-items:center;gap:7px}
.rail{
  display:grid;grid-auto-flow:column;grid-auto-columns:minmax(268px,1fr);gap:18px;
  overflow-x:auto;padding:4px 4px 20px;scroll-snap-type:x mandatory;
  scrollbar-width:thin;
}
.rail::-webkit-scrollbar{height:6px}
.rail::-webkit-scrollbar-thumb{background:#CFD8E3;border-radius:999px}
.scene-card{
  scroll-snap-align:start;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#C9D8EC}
.scene-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.scene-body{padding:18px 20px 22px}
.scene-body h3{font-size:17.5px;font-weight:700;margin-bottom:8px}
.scene-body p{margin:0 0 12px;font-size:13.8px;line-height:1.75;color:var(--ink-2)}
.scene-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--ink-3)}
/* safety block */
.safety-card{
  background:linear-gradient(140deg,#EEF2F7 0%,#E8EFF8 100%);
  border:1px solid #D7E2EF;border-radius:22px;padding:40px;
  display:grid;grid-template-columns:.9fr 1.1fr;gap:36px;align-items:start;
}
.safety-card h2{font-size:27px;line-height:1.4;font-weight:700;margin:14px 0 12px}
.safety-card .lead{font-size:14.8px;line-height:1.85;color:var(--ink-2);margin:0}
.safety-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.safety-item{background:#fff;border:1px solid #DCE6F2;border-radius:var(--r-md);padding:18px}
.safety-item i{color:var(--warm);font-size:16px}
.safety-item h3{font-size:15px;font-weight:700;margin:10px 0 6px}
.safety-item p{margin:0;font-size:13.2px;line-height:1.7;color:var(--ink-2)}
/* version cards */
.version-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.info-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;
  box-shadow:var(--shadow);height:100%;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.info-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#C9D8EC}
.info-card .ic-top{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.info-card .ic-top i{
  width:36px;height:36px;border-radius:10px;background:var(--brand-light);
  color:var(--brand);display:grid;place-items:center;font-size:14px;
}
.info-card h3{font-size:17px;font-weight:700}
.info-card .ver{font-size:28px;font-weight:700;color:var(--brand);letter-spacing:-.02em;line-height:1.2}
.info-card .ver small{font-size:13px;color:var(--ink-3);font-weight:500;margin-left:6px}
.info-card ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.info-card ul li{position:relative;padding-left:18px;font-size:13.8px;line-height:1.72;color:var(--ink-2)}
.info-card ul li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--warm);
}
.info-card .card-foot{margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);font-size:13px;color:var(--ink-3)}
/* reviews */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.review-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;
  box-shadow:var(--shadow);display:flex;flex-direction:column;gap:14px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.review-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#C9D8EC}
.review-top{display:flex;align-items:center;gap:12px}
.avatar{
  width:44px;height:44px;border-radius:50%;flex:0 0 auto;
  display:grid;place-items:center;font-size:15px;font-weight:700;color:#fff;
  background:linear-gradient(140deg,#5B86C4,#3F6CA8);
}
.avatar.a2{background:linear-gradient(140deg,#E79A74,#E07A4F)}
.avatar.a3{background:linear-gradient(140deg,#7C9CC4,#345A8C)}
.review-top strong{display:block;font-size:14.5px;color:var(--ink)}
.review-top span{font-size:12px;color:var(--ink-3)}
.stars{color:#E07A4F;font-size:12px;letter-spacing:2px}
.review-card p{margin:0;font-size:14px;line-height:1.85;color:var(--ink-2)}
.review-tag{margin-top:auto}
/* faq */
.faq-wrap{display:grid;grid-template-columns:1.28fr .72fr;gap:36px;align-items:start}
.accordion-item{
  border:1px solid var(--line);border-radius:var(--r-md) !important;margin-bottom:12px;
  overflow:hidden;background:#fff;box-shadow:0 2px 10px rgba(30,42,54,.04);
}
.accordion-button{
  font-size:15.5px;font-weight:600;color:var(--ink);background:#fff;
  padding:18px 20px;box-shadow:none !important;line-height:1.6;
}
.accordion-button:not(.collapsed){background:var(--brand-light);color:var(--brand-dark)}
.accordion-button:focus{box-shadow:none;border-color:transparent}
.accordion-button::after{
  width:16px;height:16px;background-size:16px;filter:opacity(.5);
}
.accordion-body{padding:4px 20px 20px;font-size:14.2px;line-height:1.85;color:var(--ink-2)}
.faq-aside{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow);
}
.faq-aside h3{font-size:17px;font-weight:700;margin-bottom:10px}
.faq-aside p{font-size:13.8px;line-height:1.8;color:var(--ink-2);margin:0 0 16px}
.faq-aside ul{list-style:none;padding:0;margin:0 0 18px;display:grid;gap:10px}
.faq-aside ul li{font-size:13.5px;color:var(--ink-2);display:flex;gap:8px;align-items:flex-start}
.faq-aside ul li i{color:var(--brand);font-size:12px;margin-top:5px}
/* cta */
.cta-band{
  position:relative;border-radius:22px;overflow:hidden;
  border:1px solid #D7E2EF;box-shadow:var(--shadow);
}
.cta-band .bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.cta-band .mask{position:absolute;inset:0;background:linear-gradient(100deg,rgba(30,42,54,.86) 0%,rgba(30,42,54,.62) 55%,rgba(30,42,54,.3) 100%)}
.cta-inner{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:40px;padding:44px}
.cta-inner h2{color:#fff;font-size:28px;line-height:1.42;font-weight:700;margin-bottom:14px}
.cta-inner p{color:rgba(255,255,255,.82);font-size:14.5px;line-height:1.85;margin:0 0 22px;max-width:460px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-actions .btn-line{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.4);color:#fff}
.cta-actions .btn-line:hover{background:rgba(255,255,255,.22);color:#fff}
.form-card{background:#fff;border-radius:var(--r-lg);padding:24px;box-shadow:0 18px 40px rgba(15,25,36,.22)}
.form-card h3{font-size:16.5px;font-weight:700;margin-bottom:4px}
.form-card .hint{font-size:12.5px;color:var(--ink-3);margin:0 0 16px}
.field{margin-bottom:12px}
.field label{display:block;font-size:12.5px;font-weight:600;color:var(--ink-2);margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%;min-height:44px;padding:10px 12px;border:1px solid var(--line);
  border-radius:var(--r-sm);background:#fff;color:var(--ink);outline:none;transition:.18s;
}
.field textarea{min-height:78px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(63,108,168,.14);
}
.field input::placeholder,.field textarea::placeholder{color:#AEB7C2}
/* footer */
.site-footer{background:#1E2A36;color:#C9D3DE;padding:56px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{box-shadow:none;background:linear-gradient(140deg,#4E7CB8,#345A8C)}
.footer-brand strong{display:block;color:#fff;font-size:17px;line-height:1.2}
.footer-brand small{display:block;font-size:11.5px;color:#8FA0B1;margin-top:3px}
.footer-about{font-size:13.8px;line-height:1.85;color:#A9B7C5;margin:0 0 14px;max-width:360px}
.footer-full{display:inline-block;font-size:12px;color:#8FA0B1;border:1px solid rgba(255,255,255,.14);border-radius:999px;padding:4px 12px}
.footer-col h4{font-size:14px;color:#fff;font-weight:700;margin-bottom:14px}
.footer-col ul{list-style:none;padding:0;margin:0;display:grid;gap:9px}
.footer-col ul li a{font-size:13.5px;color:#A9B7C5}
.footer-col ul li a:hover{color:var(--warm)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:18px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:#8FA0B1;
}
.to-top{
  display:inline-flex;align-items:center;gap:7px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);color:#D7E0EA;
  border-radius:999px;padding:8px 14px;font-size:12.5px;cursor:pointer;transition:.18s;
}
.to-top:hover{background:rgba(255,255,255,.16);color:#fff}
/* responsive */
@media (max-width:1199px){
  .cat-head h1{font-size:34px}
  .safety-card{padding:32px;gap:28px}
  .cta-inner{padding:36px}
}
@media (max-width:991px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .city-trigger{height:40px;padding:0 12px;font-size:13px}
  .cat-grid{grid-template-columns:1fr;gap:32px}
  .cat-head{padding:24px 0 44px}
  .split{grid-template-columns:1fr;gap:32px}
  .split-media{order:-1}
  .float-card{right:12px;bottom:-18px}
  .safety-card{grid-template-columns:1fr}
  .version-grid{grid-template-columns:1fr 1fr}
  .review-grid{grid-template-columns:1fr 1fr}
  .faq-wrap{grid-template-columns:1fr}
  .cta-inner{grid-template-columns:1fr;gap:26px;padding:30px}
  .section{padding:56px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .cat-head h1{font-size:29px}
  .cat-lead{font-size:15px}
  .section{padding:44px 0}
  h2.sec-title,.sec-title--lg{font-size:23px}
  .section-lead{font-size:14.5px}
  .head-actions{flex-direction:column;align-items:stretch}
  .head-actions .btn-main,.head-actions .btn-line{width:100%}
  .loc-chip{border-radius:var(--r-md);width:100%}
  .version-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .safety-grid{grid-template-columns:1fr}
  .rail{grid-auto-columns:minmax(248px,82%)}
  .cta-inner h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px}
  .city-menu{width:min(88vw,330px)}
}
@media (max-width:575px){
  .wrap{padding:0 16px}
  .cat-head h1{font-size:26px}
  .demo-card,.info-card,.review-card,.faq-aside,.form-card{padding:18px}
  .safety-card{padding:20px;border-radius:16px}
  .brand-text small{display:none}
  .city-bar .wrap{font-size:12.5px;gap:10px}
  .cta-inner{padding:22px}
  .footer-about{max-width:none}
}

/* roulang page: category3 */
:root{
  --brand:#3F6CA8;
  --brand-dark:#345A8C;
  --brand-light:#E8EFF8;
  --warm:#E07A4F;
  --warm-light:#FBEDE5;
  --bg:#F6F5F1;
  --surface:#FFFFFF;
  --surface-alt:#EEF2F7;
  --ink:#1E2A36;
  --ink-2:#5E6B78;
  --ink-3:#8A95A1;
  --line:#E3E7EC;
  --r-lg:18px;
  --r-md:12px;
  --r-sm:10px;
  --shadow:0 8px 28px rgba(30,42,54,.07);
  --shadow-hover:0 14px 36px rgba(30,42,54,.11);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;padding:0;font-family:var(--font);font-size:16px;line-height:1.75;
  color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0}
ul,ol{list-style:none;padding:0}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
a:hover{color:var(--brand-dark)}
button{font-family:inherit}
input,textarea,select{font-family:inherit;font-size:15px}
::selection{background:var(--brand-light);color:var(--brand-dark)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;
}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
.section{padding:72px 0}
.section--white{background:var(--surface)}
.section--paper{background:var(--bg)}
.section--alt{background:var(--surface-alt)}
.section--ink{background:#1E2A36;color:#fff}
.section-head{max-width:760px;margin-bottom:34px}
.section-head--row{max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;letter-spacing:.08em;
  color:var(--brand);background:var(--brand-light);padding:6px 12px;border-radius:999px;margin-bottom:14px;
}
.eyebrow--warm{color:#A9522C;background:var(--warm-light)}
h2.sec-title{font-size:30px;line-height:1.35;font-weight:700;letter-spacing:-.01em;color:var(--ink)}
.sec-title--lg{font-size:34px}
.section-lead{margin-top:12px;font-size:15.5px;line-height:1.85;color:var(--ink-2);max-width:740px}
/* buttons */
.btn-main,.btn-line,.btn-warm,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;
  padding:11px 22px;border-radius:var(--r-sm);font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-main{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(63,108,168,.24)}
.btn-main:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(63,108,168,.3)}
.btn-main:active{transform:translateY(0)}
.btn-line{background:#fff;color:var(--brand);border-color:#C9D8EC}
.btn-line:hover{background:var(--brand-light);color:var(--brand-dark);border-color:#B7CCE8;transform:translateY(-2px)}
.btn-line:active{transform:translateY(0)}
.btn-warm{background:var(--warm);color:#fff;box-shadow:0 6px 18px rgba(224,122,79,.26)}
.btn-warm:hover{background:#CD6A41;color:#fff;transform:translateY(-2px)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.4)}
.btn-ghost:hover{background:#fff;color:var(--brand-dark)}
.btn-sm{min-height:38px;padding:8px 16px;font-size:14px}
/* header */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);box-shadow:0 1px 0 rgba(30,42,54,.06)}
.nav-main{display:flex;align-items:center;gap:14px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink)}
.brand-mark{
  width:42px;height:42px;border-radius:13px;flex:0 0 auto;background:linear-gradient(140deg,#3F6CA8,#5B86C4);
  display:grid;place-items:center;color:#fff;font-size:17px;box-shadow:0 8px 18px rgba(63,108,168,.28);
}
.brand-text strong{display:block;font-size:18px;font-weight:700;line-height:1.2;letter-spacing:-.01em}
.brand-text small{display:block;font-size:11.5px;color:var(--ink-3);letter-spacing:.02em;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:6px;flex-wrap:wrap}
.nav-links a{display:inline-flex;align-items:center;height:40px;padding:0 13px;border-radius:var(--r-sm);font-size:14.5px;font-weight:500;color:var(--ink-2);white-space:nowrap}
.nav-links a:hover{color:var(--brand);background:var(--brand-light)}
.nav-links a.active{color:var(--brand);background:var(--brand-light);font-weight:600}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.city-trigger{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 14px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-sm);font-size:14px;font-weight:600;color:var(--ink);
  cursor:pointer;transition:.18s;
}
.city-trigger:hover{border-color:#B7CCE8;background:var(--brand-light)}
.city-trigger i.fa-location-dot{color:var(--warm)}
.city-trigger .fa-angle-down{font-size:11px;color:var(--ink-3)}
.city-menu{width:328px;padding:16px;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-hover);background:#fff;margin-top:10px}
.city-menu-title{font-size:12px;font-weight:700;color:var(--ink-3);letter-spacing:.06em;margin:14px 0 8px}
.city-menu-title:first-child{margin-top:0}
.city-search{display:flex;align-items:center;gap:8px;height:42px;padding:0 12px;background:var(--bg);border:1px solid var(--line);border-radius:var(--r-sm)}
.city-search i{color:var(--ink-3);font-size:13px}
.city-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--ink)}
.city-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.city-grid button{height:38px;border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);font-size:13.5px;color:var(--ink-2);cursor:pointer;transition:.18s}
.city-grid button:hover{background:var(--brand-light);border-color:#B7CCE8;color:var(--brand)}
.city-bar{background:var(--surface-alt);border-top:1px solid var(--line)}
.city-bar .wrap{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:40px;font-size:13px;color:var(--ink-2);flex-wrap:wrap}
.city-bar a{color:var(--brand);font-weight:500}
.city-bar .dot{width:6px;height:6px;border-radius:50%;background:var(--warm);display:inline-block;margin-right:6px;vertical-align:middle}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);color:var(--ink);font-size:17px;cursor:pointer}
.drawer-mask{position:fixed;inset:0;background:rgba(30,42,54,.45);opacity:0;visibility:hidden;transition:.25s;z-index:1090}
.drawer-mask.show{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(88vw,360px);background:#fff;z-index:1100;transform:translateX(102%);transition:transform .28s ease;display:flex;flex-direction:column;padding:20px;overflow-y:auto;box-shadow:-16px 0 40px rgba(30,42,54,.16)}
.drawer.show{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;font-size:16px;color:var(--ink);cursor:pointer}
.drawer-city{background:var(--surface-alt);border-radius:var(--r-md);padding:14px;margin-bottom:16px}
.drawer-city strong{display:block;font-size:15px;margin-bottom:4px}
.drawer-city p{font-size:13px;color:var(--ink-2)}
.drawer-links{display:flex;flex-direction:column;gap:4px}
.drawer-links a{display:flex;align-items:center;justify-content:space-between;height:46px;padding:0 14px;border-radius:var(--r-sm);font-size:15px;color:var(--ink);font-weight:500}
.drawer-links a:hover,.drawer-links a.active{background:var(--brand-light);color:var(--brand)}
/* page hero */
.page-hero{background:var(--bg);padding:36px 0 44px;border-bottom:1px solid var(--line)}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:18px;flex-wrap:wrap}
.crumb a{color:var(--ink-3)}
.crumb a:hover{color:var(--brand)}
.crumb .current{color:var(--brand);font-weight:600}
.hero-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:40px;align-items:center}
.page-hero h1{font-size:42px;line-height:1.25;font-weight:700;letter-spacing:-.015em}
.page-hero h1 span{color:var(--brand)}
.hero-desc{margin-top:16px;font-size:16px;line-height:1.9;color:var(--ink-2);max-width:620px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.badge-pill{display:inline-flex;align-items:center;gap:7px;padding:7px 14px;border-radius:999px;font-size:12.5px;font-weight:600;background:#fff;border:1px solid var(--line);color:var(--ink-2)}
.badge-pill i{color:var(--warm);font-size:12px}
.badge-pill--brand{background:var(--brand-light);border-color:#CADCF1;color:var(--brand)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-visual{position:relative}
.hero-visual .shot{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-hover);border:1px solid var(--line);background:#fff}
.hero-visual .shot img{width:100%;aspect-ratio:4/3;object-fit:cover}
.float-card{
  position:absolute;left:-16px;bottom:-18px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:14px 18px;box-shadow:var(--shadow-hover);display:flex;align-items:center;gap:12px;min-width:210px;
}
.float-card .ic{width:38px;height:38px;border-radius:11px;background:var(--warm-light);color:#A9522C;display:grid;place-items:center;font-size:15px}
.float-card strong{display:block;font-size:15px;line-height:1.3}
.float-card small{font-size:12px;color:var(--ink-3)}
/* city strip */
.city-strip{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:26px;font-size:13.5px;color:var(--ink-2)}
.city-strip .chip-city{display:inline-flex;align-items:center;gap:7px;padding:7px 13px;border-radius:999px;background:#fff;border:1px solid var(--line);font-weight:600;color:var(--ink)}
.city-strip .chip-city i{color:var(--warm)}
/* topic nav cards */
.grid-cat{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.cat-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;display:flex;flex-direction:column;gap:10px;height:100%}
.cat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#C9D8EC}
.cat-card .ic{width:44px;height:44px;border-radius:13px;background:var(--brand-light);color:var(--brand);display:grid;place-items:center;font-size:17px}
.cat-card h3{font-size:19px;font-weight:700}
.cat-card p{font-size:14px;line-height:1.75;color:var(--ink-2)}
.cat-card .meta{margin-top:auto;font-size:12.5px;color:var(--ink-3);display:flex;gap:12px;align-items:center}
.cat-card .go{color:var(--brand);font-weight:600;font-size:13.5px}
.cat-card .go:hover{color:var(--warm)}
/* post list */
.post-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow);overflow:hidden}
.post-item{display:flex;align-items:flex-start;gap:16px;padding:20px 24px;border-bottom:1px solid var(--line);transition:background-color .2s ease}
.post-item:last-child{border-bottom:0}
.post-item:hover{background:#FBFCFE}
.post-idx{flex:0 0 auto;width:32px;height:32px;border-radius:9px;background:var(--surface-alt);color:var(--ink-2);display:grid;place-items:center;font-size:13px;font-weight:700}
.post-item:nth-child(1) .post-idx{background:var(--warm);color:#fff}
.post-item:nth-child(2) .post-idx{background:#E07A4F;color:#fff;opacity:.85}
.post-item:nth-child(3) .post-idx{background:#E07A4F;color:#fff;opacity:.7}
.post-body{flex:1 1 auto;min-width:0}
.post-title{display:block;font-size:16.5px;font-weight:600;color:var(--ink);line-height:1.55}
.post-sub{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:7px;font-size:12.5px;color:var(--ink-3)}
.tag{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;font-size:11.5px;font-weight:600;background:var(--brand-light);color:var(--brand)}
.tag--warm{background:var(--warm-light);color:#A9522C}
.tag--gray{background:var(--surface-alt);color:var(--ink-2)}
/* featured */
.grid-two{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.feature-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;display:flex;flex-direction:column}
.feature-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#C9D8EC}
.feature-card .thumb{aspect-ratio:16/9;overflow:hidden}
.feature-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.feature-card:hover .thumb img{transform:scale(1.04)}
.feature-card .body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.feature-card h3{font-size:19px;line-height:1.5;font-weight:700}
.feature-card p{font-size:14px;line-height:1.8;color:var(--ink-2)}
.feature-card .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12.5px;color:var(--ink-3)}
/* cms list */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.news-card{display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:16px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;height:100%}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#C9D8EC}
.news-card .thumb{flex:0 0 118px;border-radius:var(--r-sm);overflow:hidden;background:var(--surface-alt)}
.news-card .thumb img{width:100%;height:100%;min-height:92px;object-fit:cover}
.news-card .body{min-width:0;display:flex;flex-direction:column;gap:6px}
.news-card h3{font-size:16px;line-height:1.55;font-weight:600}
.news-card h3 a{color:var(--ink)}
.news-card h3 a:hover{color:var(--brand)}
.news-card p{font-size:13.5px;line-height:1.7;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card .meta{margin-top:auto;font-size:12px;color:var(--ink-3);display:flex;gap:10px;flex-wrap:wrap}
.empty-state{background:#fff;border:1px dashed #C9D8EC;border-radius:var(--r-lg);padding:46px 24px;text-align:center;box-shadow:var(--shadow)}
.empty-state .ic{width:56px;height:56px;border-radius:16px;background:var(--brand-light);color:var(--brand);display:grid;place-items:center;font-size:22px;margin:0 auto 14px}
.empty-state p{color:var(--ink-2);font-size:15px;margin-bottom:18px}
/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.step-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow);position:relative;transition:transform .2s ease,box-shadow .2s ease}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.step-no{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:var(--brand);color:#fff;font-weight:700;font-size:14px;margin-bottom:14px}
.step-card h3{font-size:17.5px;margin-bottom:8px}
.step-card p{font-size:14px;line-height:1.8;color:var(--ink-2)}
.rule-panel{margin-top:26px;background:var(--surface-alt);border-radius:var(--r-lg);padding:26px;border:1px solid var(--line)}
.rule-panel h3{font-size:17px;margin-bottom:14px}
.check-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px 24px}
.check-list li{display:flex;gap:10px;font-size:14px;line-height:1.75;color:var(--ink-2)}
.check-list li i{color:var(--brand);margin-top:5px;font-size:13px}
/* moderators */
.mod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.mod-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;text-align:center;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.mod-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#C9D8EC}
.avatar{width:58px;height:58px;border-radius:50%;margin:0 auto 12px;display:grid;place-items:center;font-size:18px;font-weight:700;color:#fff;background:linear-gradient(140deg,#3F6CA8,#5B86C4);box-shadow:0 8px 18px rgba(63,108,168,.24)}
.avatar--warm{background:linear-gradient(140deg,#E07A4F,#EE9A73);box-shadow:0 8px 18px rgba(224,122,79,.26)}
.mod-card strong{display:block;font-size:15.5px}
.mod-card .city{display:block;font-size:12.5px;color:var(--ink-3);margin-top:2px}
.mod-card .cnt{display:inline-block;margin-top:10px;font-size:12px;padding:3px 10px;border-radius:999px;background:var(--surface-alt);color:var(--ink-2)}
/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 22px;box-shadow:var(--shadow);text-align:left}
.stat-card .num{font-size:32px;font-weight:700;line-height:1.2;color:var(--brand);letter-spacing:-.02em}
.stat-card .num.warm{color:var(--warm)}
.stat-card .lbl{margin-top:6px;font-size:13.5px;color:var(--ink-2)}
.stat-note{margin-top:16px;font-size:12.5px;color:var(--ink-3)}
/* faq */
.faq-wrap{display:grid;grid-template-columns:1.6fr 1fr;gap:28px;align-items:start}
.accordion-item{border:1px solid var(--line);border-radius:var(--r-md)!important;margin-bottom:12px;overflow:hidden;background:#fff;box-shadow:var(--shadow)}
.accordion-button{
  font-size:16px;font-weight:600;color:var(--ink);background:#fff;padding:18px 20px;box-shadow:none!important;
}
.accordion-button:not(.collapsed){background:var(--brand-light);color:var(--brand-dark)}
.accordion-button::after{width:14px;height:14px;background-size:14px}
.accordion-body{font-size:14px;line-height:1.85;color:var(--ink-2);padding:16px 20px 20px}
.faq-side{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;box-shadow:var(--shadow)}
.faq-side .ic{width:46px;height:46px;border-radius:13px;background:var(--warm-light);color:#A9522C;display:grid;place-items:center;font-size:18px;margin-bottom:14px}
.faq-side h3{font-size:18px;margin-bottom:10px}
.faq-side p{font-size:14px;line-height:1.8;color:var(--ink-2);margin-bottom:18px}
/* cta band */
.cta-band{background:#1E2A36;color:#fff;padding:64px 0}
.cta-inner{display:grid;grid-template-columns:1.4fr 1fr;gap:36px;align-items:center}
.cta-band h2{font-size:30px;line-height:1.35;color:#fff;letter-spacing:-.01em}
.cta-band p{margin-top:14px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.78);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
.cta-tips{display:flex;flex-wrap:wrap;gap:18px;margin-top:22px;font-size:13px;color:rgba(255,255,255,.68)}
.cta-tips span{display:inline-flex;align-items:center;gap:7px}
.cta-tips i{color:#E07A4F}
/* footer */
.site-footer{background:#1E2A36;color:rgba(255,255,255,.76);padding:56px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding-bottom:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{width:40px;height:40px;border-radius:12px;background:linear-gradient(140deg,#3F6CA8,#5B86C4);display:grid;place-items:center;color:#fff;font-size:16px}
.footer-brand strong{display:block;color:#fff;font-size:17px;line-height:1.2}
.footer-brand small{display:block;font-size:11.5px;color:rgba(255,255,255,.55);margin-top:2px}
.footer-about{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.7);max-width:360px}
.footer-full{display:inline-block;margin-top:14px;font-size:12px;color:rgba(255,255,255,.5);border:1px solid rgba(255,255,255,.16);padding:5px 12px;border-radius:999px}
.footer-col h4{color:#fff;font-size:14.5px;margin-bottom:14px;font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:9px}
.footer-col a{font-size:13.5px;color:rgba(255,255,255,.7)}
.footer-col a:hover{color:#E07A4F}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.5px;color:rgba(255,255,255,.55)}
.to-top{display:inline-flex;align-items:center;gap:7px;background:transparent;border:1px solid rgba(255,255,255,.24);color:rgba(255,255,255,.8);border-radius:999px;padding:7px 14px;font-size:12.5px;cursor:pointer;transition:.2s}
.to-top:hover{background:#fff;color:#1E2A36;border-color:#fff}
@media (max-width:1200px){
  .nav-links a{padding:0 10px;font-size:14px}
}
@media (max-width:991px){
  .nav-links,.nav-right .city-trigger{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;margin-left:auto}
  .nav-main{min-height:64px}
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .hero-visual{order:2}
  .float-card{left:auto;right:12px;bottom:-14px}
  .page-hero h1{font-size:34px}
  .grid-cat{grid-template-columns:repeat(2,1fr)}
  .grid-two{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .mod-grid{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .faq-wrap{grid-template-columns:1fr}
  .cta-inner{grid-template-columns:1fr}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr}
  .check-list{grid-template-columns:1fr}
  .section{padding:52px 0}
}
@media (max-width:767px){
  .section{padding:44px 0}
  .page-hero{padding:26px 0 34px}
  .page-hero h1{font-size:30px}
  h2.sec-title{font-size:24px}
  .sec-title--lg{font-size:26px}
  .grid-cat{grid-template-columns:1fr}
  .news-card{flex-direction:column}
  .news-card .thumb{flex:0 0 auto;width:100%;aspect-ratio:16/9}
  .news-card .thumb img{min-height:0;height:100%}
  .post-item{padding:16px 18px;gap:12px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .cta-band{padding:48px 0}
  .cta-band h2{font-size:24px}
  .btn-main,.btn-line,.btn-warm{width:100%}
  .hero-actions .btn-main,.hero-actions .btn-line{width:100%}
  .cta-actions .btn-main,.cta-actions .btn-ghost{width:100%}
}
@media (max-width:575px){
  .mod-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr}
  .cat-card{padding:20px}
  .stat-card{padding:22px 18px}
  .hero-badges{gap:8px}
  .badge-pill{font-size:12px;padding:6px 12px}
}