/* roulang page: index */
:root{
  --primary:#12C2A0;
  --primary-dark:#0FA98B;
  --primary-soft:rgba(18,194,160,.12);
  --accent:#FF7A3D;
  --accent-soft:rgba(255,122,61,.12);
  --ink:#16191C;
  --ink-2:#4A5259;
  --ink-3:#7C868E;
  --bg:#FAF7F2;
  --surface:#FFFFFF;
  --alt:#F0EDE6;
  --line:#E4DFD6;
  --danger:#D64545;
  --r-card:16px;
  --r-btn:999px;
  --r-input:12px;
  --r-img:14px;
  --r-badge:8px;
  --sh-1:0 1px 2px rgba(22,25,28,.04);
  --sh-2:0 8px 24px rgba(22,25,28,.10);
  --sh-3:0 16px 40px rgba(22,25,28,.14);
  --container:1200px;
  --mono:ui-monospace,"SF Mono",SFMono-Regular,"DIN Alternate",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.32;letter-spacing:.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:transform .18s ease,background .18s ease,color .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--primary);color:#062B24}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-block{width:100%}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(250,247,242,.92);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{background:#fff;border-bottom-color:var(--line);box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:24px;height:84px;transition:height .25s ease}
.site-header.is-scrolled .header-inner{height:68px}
.brand{display:flex;align-items:center;gap:11px;flex:none}
.brand-mark{
  display:grid;place-items:center;width:40px;height:40px;border-radius:12px;
  background:var(--primary-soft);color:var(--primary);flex:none;
}
.brand-text{font-size:19px;font-weight:800;letter-spacing:.6px;line-height:1.1}
.brand-text em{display:block;font-style:normal;font-size:11px;font-weight:500;letter-spacing:2px;color:var(--ink-3);margin-top:3px}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  padding:9px 15px;border-radius:var(--r-btn);font-size:15px;color:var(--ink-2);
  transition:background .18s ease,color .18s ease;white-space:nowrap;
}
.nav-link:hover{background:var(--alt);color:var(--ink)}
.nav-link.active{color:#0B3C33;font-weight:700;background:var(--primary-soft)}
.header-actions{display:flex;align-items:center;gap:10px;flex:none}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:var(--surface);cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:302px;max-width:86vw;z-index:90;
  background:var(--surface);box-shadow:var(--sh-3);
  padding:20px 20px 28px;display:flex;flex-direction:column;gap:8px;
  transform:translateX(-104%);transition:transform .3s ease;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:var(--bg);font-size:20px;line-height:1;cursor:pointer}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin:14px 0 8px}
.drawer-nav a{padding:13px 14px;border-radius:12px;font-size:16px;color:var(--ink-2);transition:background .18s,color .18s}
.drawer-nav a:hover,.drawer-nav a.active{background:var(--primary-soft);color:#0B3C33;font-weight:600}
.drawer-cta{margin-top:auto}
.drawer-mask{
  position:fixed;inset:0;background:rgba(22,25,28,.45);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ---------- hero ---------- */
.hero{position:relative;padding:70px 0 86px;overflow:hidden;background:var(--bg)}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/1c3acde946fbdc91.webp);
  background-size:cover;background-position:center;opacity:.07;pointer-events:none;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--line);
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:7px 15px;border-radius:var(--r-btn);
  background:var(--primary-soft);color:#0B6B59;font-size:13px;font-weight:600;letter-spacing:.4px;
}
.hero h1{margin:20px 0 0;font-size:44px;font-weight:800;letter-spacing:-0.5px}
.hero-sub{margin-top:14px;font-size:17px;color:var(--ink-2);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-stats{display:flex;align-items:stretch;gap:0;margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}
.hero-stats div{padding-right:30px;margin-right:30px;border-right:1px solid var(--line);display:flex;flex-direction:column;gap:2px}
.hero-stats div:last-child{border-right:0;padding-right:0;margin-right:0}
.hero-stats strong{font-family:var(--mono);font-size:27px;font-weight:700;color:var(--ink);letter-spacing:-.5px}
.hero-stats span{font-size:13px;color:var(--ink-3)}
.hero-media{
  margin:0;position:relative;border-radius:var(--r-img);overflow:hidden;
  box-shadow:var(--sh-3);aspect-ratio:4/5;
}
.hero-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.hero-media:hover img{transform:scale(1.03)}
.hero-media figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:44px 20px 18px;font-size:13px;color:#fff;
  background:linear-gradient(0deg,rgba(22,25,28,.82),rgba(22,25,28,0));
}

/* ---------- section base ---------- */
.section{padding:84px 0}
.section-alt{background:var(--alt)}
.section-white{background:var(--surface)}
.section-dark{background:var(--ink);color:#fff}
.section-head{max-width:760px;margin-bottom:38px}
.section-head .bar{display:block;width:4px;height:20px;border-radius:2px;background:var(--primary);margin-bottom:14px}
.section-head h2{font-size:30px;font-weight:800}
.section-head p{margin-top:12px;color:var(--ink-2);font-size:16px}
.section-dark .section-head p{color:#A9B2B8}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:38px}
.section-head-row .section-head{margin-bottom:0}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:5px;padding:4px 11px;border-radius:var(--r-badge);
  background:var(--primary-soft);color:#0B6B59;font-size:12px;font-weight:600;line-height:1.6;white-space:nowrap;
}
.badge-accent{background:var(--accent-soft);color:#B84613}
.badge-solid{background:var(--ink);color:#fff}
.badge-outline{background:#fff;color:var(--ink-2);border:1px solid var(--line)}

/* ---------- route cards ---------- */
.routes-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.route-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;
}
.route-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D8D2C7}
.route-thumb{position:relative;aspect-ratio:16/11;overflow:hidden;background:var(--alt)}
.route-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.route-card:hover .route-thumb img{transform:scale(1.04)}
.route-thumb .badge{position:absolute;top:12px;left:12px;background:rgba(255,255,255,.94);color:#0B6B59;backdrop-filter:blur(4px)}
.route-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.route-body h3{font-size:18px;font-weight:700}
.route-area{font-size:13px;color:var(--ink-3)}
.route-specs{display:flex;flex-direction:column;gap:7px;margin-top:auto;padding-top:12px;border-top:1px dashed var(--line)}
.route-specs li{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3)}
.route-specs strong{font-family:var(--mono);font-size:14px;color:var(--ink);font-weight:600}

/* ---------- topic pills ---------- */
.topic-row{display:flex;flex-wrap:wrap;gap:12px}
.topic-pill{
  display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:var(--r-btn);
  background:var(--surface);border:1px solid var(--line);font-size:15px;color:var(--ink-2);
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.topic-pill::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--primary);flex:none}
.topic-pill:hover{background:var(--ink);color:#fff;border-color:var(--ink);transform:translateY(-1px)}
.topic-pill:hover::before{background:var(--accent)}

/* ---------- feed ---------- */
.feed-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;transition:transform .22s ease,box-shadow .22s ease;
  display:flex;flex-direction:column;height:100%;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.post-card-link{display:flex;flex-direction:column;height:100%}
.post-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--alt)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{
  font-size:17px;font-weight:700;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card:hover .post-body h3{color:var(--primary-dark)}
.post-body p{
  font-size:14px;color:var(--ink-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{margin-top:auto;padding-top:12px;border-top:1px solid var(--line);font-size:12.5px;color:var(--ink-3);font-family:var(--mono)}
.feed-list{margin-top:20px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1)}
.feed-row + .feed-row{border-top:1px solid var(--line)}
.feed-row a{display:flex;align-items:center;gap:18px;padding:17px 22px;transition:background .18s ease}
.feed-row a:hover{background:#FBF9F5}
.feed-row-cat{flex:none;font-size:12px;font-weight:600;color:#0B6B59;background:var(--primary-soft);padding:3px 10px;border-radius:var(--r-badge)}
.feed-row-title{font-size:15px;font-weight:600;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.feed-row-time{flex:none;font-family:var(--mono);font-size:13px;color:var(--ink-3)}
.feed-more{display:flex;justify-content:center;margin-top:28px}
.empty-state{
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-card);
  padding:48px 24px;text-align:center;color:var(--ink-3);
}
.empty-state strong{display:block;font-size:16px;color:var(--ink-2);margin-bottom:6px}
.empty-state p{font-size:14px}

/* ---------- pace groups ---------- */
.group-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.group-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 24px;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease;
  display:flex;flex-direction:column;gap:18px;
}
.group-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.group-card .badge{align-self:flex-start}
.group-card h3{font-size:21px;font-weight:800}
.group-card .group-desc{font-size:14px;color:var(--ink-2);line-height:1.8}
.group-specs{display:flex;flex-direction:column;gap:0;margin-top:auto;border-top:1px solid var(--line)}
.group-specs li{display:flex;justify-content:space-between;align-items:center;padding:11px 0;border-bottom:1px solid var(--line);font-size:13.5px;color:var(--ink-3)}
.group-specs li:last-child{border-bottom:0}
.group-specs strong{font-family:var(--mono);font-size:15px;color:var(--ink);font-weight:700}
.group-card.is-featured{border-color:var(--primary);box-shadow:0 10px 30px rgba(18,194,160,.16)}

/* ---------- map block ---------- */
.map-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:48px;align-items:center}
.map-copy h2{font-size:30px;font-weight:800}
.map-copy p{margin-top:16px;color:var(--ink-2)}
.map-points{margin-top:26px;display:flex;flex-direction:column;gap:14px}
.map-points li{display:flex;gap:13px;align-items:flex-start;font-size:15px;color:var(--ink-2)}
.map-points li span.num{
  flex:none;width:26px;height:26px;border-radius:8px;background:var(--primary-soft);color:#0B6B59;
  font-family:var(--mono);font-size:13px;font-weight:700;display:grid;place-items:center;margin-top:2px;
}
.map-points strong{color:var(--ink);font-weight:700}
.map-figure{margin:0;border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/9;box-shadow:var(--sh-2);background:var(--alt)}
.map-figure img{width:100%;height:100%;object-fit:cover}

/* ---------- steps ---------- */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
.step{
  position:relative;padding:0 26px 0 0;
}
.step::after{
  content:"";position:absolute;top:23px;left:56px;right:8px;height:2px;
  background:repeating-linear-gradient(90deg,var(--primary) 0 8px,transparent 8px 16px);opacity:.45;
}
.step:last-child::after{display:none}
.step-num{
  display:grid;place-items:center;width:46px;height:46px;border-radius:14px;
  background:var(--surface);border:1px solid var(--line);font-family:var(--mono);
  font-size:18px;font-weight:700;color:var(--primary-dark);box-shadow:var(--sh-1);
}
.step h3{margin-top:18px;font-size:18px;font-weight:700}
.step p{margin-top:8px;font-size:14px;color:var(--ink-2);line-height:1.8;max-width:230px}

/* ---------- rules ---------- */
.rules-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:40px;align-items:start}
.rule-list{display:flex;flex-direction:column;gap:0}
.rule-list li{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)}
.rule-list li:first-child{padding-top:0}
.rule-list li:last-child{border-bottom:0}
.rule-list .dot{
  flex:none;width:28px;height:28px;border-radius:50%;background:var(--primary-soft);color:#0B6B59;
  font-family:var(--mono);font-size:13px;font-weight:700;display:grid;place-items:center;margin-top:3px;
}
.rule-list h4{font-size:16px;font-weight:700}
.rule-list p{font-size:14px;color:var(--ink-2);margin-top:4px;line-height:1.8}
.tip-card{
  background:var(--ink);color:#E8EBED;border-radius:var(--r-card);padding:32px 28px;
  border:1px solid rgba(255,255,255,.12);box-shadow:var(--sh-2);
}
.tip-card .badge{background:rgba(18,194,160,.18);color:#5FE3C9}
.tip-card h3{margin-top:16px;font-size:21px;color:#fff}
.tip-card p{margin-top:12px;font-size:14px;color:#A9B2B8;line-height:1.85}
.tip-card ul{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.tip-card li{display:flex;gap:10px;font-size:14px;color:#C9CFD4}
.tip-card li::before{content:"";flex:none;width:6px;height:6px;border-radius:50%;background:var(--accent);margin-top:11px}

/* ---------- gear ---------- */
.gear-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.gear-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 22px;display:flex;gap:16px;align-items:flex-start;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.gear-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D8D2C7}
.gear-icon{
  flex:none;width:42px;height:42px;border-radius:12px;background:var(--alt);
  display:grid;place-items:center;font-size:19px;
}
.gear-card h3{font-size:16.5px;font-weight:700}
.gear-card p{margin-top:6px;font-size:13.5px;color:var(--ink-2);line-height:1.8}

/* ---------- calendar ---------- */
.calendar{display:flex;flex-direction:column;gap:0;border-left:2px solid var(--line);margin-left:8px}
.cal-item{position:relative;padding:0 0 30px 34px}
.cal-item:last-child{padding-bottom:0}
.cal-item::before{
  content:"";position:absolute;left:-8px;top:8px;width:14px;height:14px;border-radius:50%;
  background:var(--surface);border:3px solid var(--primary);
}
.cal-date{
  display:inline-flex;align-items:baseline;gap:6px;font-family:var(--mono);
  font-size:13px;color:var(--ink-3);font-weight:600;
}
.cal-item h3{margin-top:8px;font-size:17px;font-weight:700}
.cal-item p{margin-top:5px;font-size:14px;color:var(--ink-2)}
.cal-item .badge{margin-top:10px}

/* ---------- pacer ---------- */
.pacer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pacer-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 24px;text-align:center;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.pacer-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.pacer-avatar{
  width:88px;height:88px;border-radius:50%;overflow:hidden;margin:0 auto 16px;
  border:3px solid var(--surface);box-shadow:0 0 0 1px var(--line),var(--sh-1);background:var(--alt);
}
.pacer-avatar img{width:100%;height:100%;object-fit:cover}
.pacer-card h3{font-size:18px;font-weight:700}
.pacer-card .pacer-pace{margin-top:6px;font-family:var(--mono);font-size:14px;color:var(--primary-dark);font-weight:700}
.pacer-card p{margin-top:10px;font-size:13.5px;color:var(--ink-2);line-height:1.8}

/* ---------- reviews ---------- */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 26px;position:relative;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease;display:flex;flex-direction:column;
}
.review-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.review-card::before{
  content:"“";position:absolute;top:8px;right:22px;font-size:60px;line-height:1;
  color:var(--primary);opacity:.18;font-family:Georgia,serif;
}
.review-card p{font-size:15px;color:var(--ink-2);line-height:1.9;flex:1}
.review-who{margin-top:20px;padding-top:16px;border-top:1px solid var(--line);display:flex;align-items:center;gap:12px}
.review-who .avatar{
  width:38px;height:38px;border-radius:50%;background:var(--primary-soft);color:#0B6B59;
  display:grid;place-items:center;font-weight:700;font-size:15px;flex:none;
}
.review-who strong{display:block;font-size:14.5px;font-weight:700}
.review-who span{font-size:12.5px;color:var(--ink-3)}

/* ---------- join / form ---------- */
.join-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.join-copy h2{font-size:30px;font-weight:800}
.join-copy p{margin-top:16px;color:var(--ink-2)}
.join-steps{margin-top:26px;display:flex;flex-direction:column;gap:14px}
.join-steps li{display:flex;gap:14px;align-items:flex-start;font-size:15px;color:var(--ink-2)}
.join-steps .num{
  flex:none;width:26px;height:26px;border-radius:50%;background:var(--ink);color:#fff;
  font-family:var(--mono);font-size:12.5px;font-weight:700;display:grid;place-items:center;margin-top:3px;
}
.join-note{
  margin-top:28px;padding:18px 20px;border-radius:var(--r-card);background:var(--alt);
  font-size:13.5px;color:var(--ink-2);line-height:1.8;border:1px solid var(--line);
}
.form-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px 30px;box-shadow:var(--sh-2);
}
.form-card h3{font-size:20px;font-weight:800}
.form-card .form-sub{margin-top:6px;font-size:13.5px;color:var(--ink-3)}
.field{margin-top:20px;display:flex;flex-direction:column;gap:8px}
.field label{font-size:13.5px;font-weight:600;color:var(--ink-2)}
.field input,.field select{
  width:100%;height:48px;padding:0 15px;border-radius:var(--r-input);
  border:1px solid var(--line);background:var(--bg);color:var(--ink);font-size:15px;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
  appearance:none;
}
.field select{background-image:linear-gradient(45deg,transparent 50%,var(--ink-3) 50%),linear-gradient(135deg,var(--ink-3) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;padding-right:40px}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(18,194,160,.18);
}
.field.has-error input,.field.has-error select{border-color:var(--danger);box-shadow:0 0 0 3px rgba(214,69,69,.12)}
.field-error{display:none;font-size:12.5px;color:var(--danger);line-height:1.6}
.field.has-error .field-error{display:block}
.form-actions{margin-top:26px}
.form-tip{margin-top:14px;font-size:12.5px;color:var(--ink-3);line-height:1.7}
.form-success{
  display:none;margin-top:20px;padding:16px 18px;border-radius:var(--r-input);
  background:rgba(18,194,160,.12);border:1px solid rgba(18,194,160,.38);
  color:#0B6B59;font-size:14px;line-height:1.75;
}
.form-success.is-visible{display:block}

/* ---------- faq ---------- */
.faq-wrap{max-width:880px;margin:0 auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 24px;font-size:16px;font-weight:600;cursor:pointer;
  transition:background .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:var(--alt)}
.faq-item summary::after{
  content:"+";flex:none;width:26px;height:26px;border-radius:8px;background:var(--alt);
  display:grid;place-items:center;font-size:17px;font-weight:600;color:var(--ink-2);
  transition:background .18s ease,color .18s ease;
}
.faq-item[open] summary::after{content:"−";background:var(--primary-soft);color:#0B6B59}
.faq-item[open] summary{background:#FBF9F5}
.faq-body{padding:0 24px 20px 24px;margin-left:24px;border-left:2px solid var(--primary-soft)}
.faq-body p{font-size:15px;color:var(--ink-2);line-height:1.9}

/* ---------- cta banner ---------- */
.cta-band{
  background:var(--ink);color:#fff;border-radius:var(--r-card);padding:44px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  border:1px solid rgba(255,255,255,.12);box-shadow:var(--sh-3);
}
.cta-band h2{font-size:26px;font-weight:800}
.cta-band p{margin-top:10px;color:#A9B2B8;font-size:15px;max-width:620px}
.cta-band .btn-primary{flex:none}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#C9CFD4;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand .brand-text{color:#fff;font-size:20px}
.footer-brand .brand-mark{background:rgba(18,194,160,.18);color:#5FE3C9}
.footer-brand p{margin-top:18px;font-size:14px;color:#9AA4AB;line-height:1.85;max-width:300px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;letter-spacing:.6px;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:#C9CFD4;transition:color .18s ease}
.footer-col a:hover{color:var(--primary)}
.footer-col li span{font-size:14px;color:#9AA4AB}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8C969D;
}
.footer-bottom .mono{font-family:var(--mono)}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .hero h1{font-size:40px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:64px 0}
  .hero{padding:52px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:38px}
  .hero-media{aspect-ratio:16/10;max-width:580px;width:100%}
  .hero h1{font-size:36px}
  .routes-grid{grid-template-columns:repeat(2,1fr)}
  .feed-grid{grid-template-columns:repeat(2,1fr)}
  .group-grid{grid-template-columns:1fr;gap:18px}
  .gear-grid{grid-template-columns:repeat(2,1fr)}
  .pacer-grid{grid-template-columns:1fr;gap:18px}
  .review-grid{grid-template-columns:1fr;gap:18px}
  .map-grid{grid-template-columns:1fr;gap:32px}
  .rules-grid{grid-template-columns:1fr;gap:28px}
  .join-grid{grid-template-columns:1fr;gap:32px}
  .steps-grid{grid-template-columns:repeat(2,1fr);gap:28px}
  .step{padding-right:16px}
  .step::after{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .btn{display:none}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .header-inner{height:68px;gap:12px}
  .brand-text{font-size:17px}
  .brand-text em{font-size:10px;letter-spacing:1.6px}
  .hero{padding:40px 0 52px}
  .hero h1{font-size:29px;letter-spacing:0}
  .hero-sub{font-size:15.5px}
  .hero-stats{flex-wrap:wrap;gap:16px 0;padding-top:20px;margin-top:28px}
  .hero-stats div{padding-right:20px;margin-right:20px}
  .hero-stats strong{font-size:23px}
  .section{padding:52px 0}
  .section-head h2{font-size:24px}
  .section-head{margin-bottom:28px}
  .routes-grid{grid-template-columns:1fr;gap:16px}
  .feed-grid{grid-template-columns:1fr;gap:16px}
  .gear-grid{grid-template-columns:1fr;gap:14px}
  .steps-grid{grid-template-columns:1fr;gap:22px}
  .step p{max-width:none}
  .feed-row a{flex-wrap:wrap;gap:8px 12px;padding:15px 18px}
  .feed-row-title{white-space:normal;flex-basis:100%;order:3}
  .feed-row-time{margin-left:auto}
  .form-card{padding:24px 20px}
  .cta-band{padding:30px 24px}
  .cta-band h2{font-size:22px}
  .faq-item summary{padding:14px 18px;font-size:15px}
  .faq-body{padding:0 18px 18px 18px;margin-left:18px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .site-footer{padding-top:48px}
  .footer-bottom{font-size:12.5px}
}
@media (max-width:480px){
  .hero h1{font-size:26px}
  .btn{padding:12px 20px;font-size:14px}
  .hero-actions{gap:10px}
  .hero-stats div{padding-right:16px;margin-right:16px}
  .topic-pill{padding:9px 16px;font-size:14px}
  .route-body,.post-body{padding:18px}
}

/* roulang page: article */
:root{
  --primary:#12C2A0;
  --primary-dark:#0FA98B;
  --primary-soft:rgba(18,194,160,.12);
  --accent:#FF7A3D;
  --accent-soft:rgba(255,122,61,.12);
  --ink:#16191C;
  --ink-2:#4A5259;
  --ink-3:#7C868E;
  --bg:#FAF7F2;
  --surface:#FFFFFF;
  --alt:#F0EDE6;
  --line:#E4DFD6;
  --danger:#D64545;
  --r-card:16px;
  --r-btn:999px;
  --r-input:12px;
  --r-img:14px;
  --r-badge:8px;
  --sh-1:0 1px 2px rgba(22,25,28,.04);
  --sh-2:0 8px 24px rgba(22,25,28,.10);
  --sh-3:0 16px 40px rgba(22,25,28,.14);
  --container:1200px;
  --mono:ui-monospace,"SF Mono",SFMono-Regular,"DIN Alternate",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.mono{font-family:var(--mono);letter-spacing:.4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.skip-link{
  position:absolute;left:16px;top:-60px;z-index:120;background:var(--ink);color:#fff;
  padding:10px 18px;border-radius:var(--r-btn);font-size:14px;transition:top .2s ease;
}
.skip-link:focus{top:14px}
/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;text-align:center;
  transition:transform .18s ease,background .18s ease,color .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--primary);color:#062B24;border-color:transparent}
.btn-primary:hover,.btn-primary:focus{background:var(--primary-dark);color:#062B24;border-color:transparent;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{background:var(--primary-dark);color:#062B24;border-color:transparent;transform:translateY(0);box-shadow:none}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover,.btn-ghost:focus{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn-ghost:active{background:var(--ink);color:#fff}
.btn-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.42)}
.btn-light:hover,.btn-light:focus{background:#fff;color:var(--ink);border-color:#fff}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-block{width:100%}
/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(250,247,242,.92);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{background:#fff;border-bottom-color:var(--line);box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:24px;height:84px;transition:height .25s ease}
.site-header.is-scrolled .header-inner{height:68px}
.brand{display:flex;align-items:center;gap:11px;flex:none}
.brand-mark{
  display:grid;place-items:center;width:40px;height:40px;border-radius:12px;
  background:var(--primary-soft);color:var(--primary);flex:none;
}
.brand-text{font-size:19px;font-weight:800;letter-spacing:.6px;line-height:1.1}
.brand-text em{display:block;font-style:normal;font-size:11px;font-weight:500;letter-spacing:2px;color:var(--ink-3);margin-top:3px}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  padding:9px 15px;border-radius:var(--r-btn);font-size:15px;color:var(--ink-2);
  transition:background .18s ease,color .18s ease;white-space:nowrap;
}
.nav-link:hover{background:var(--alt);color:var(--ink)}
.nav-link.active{color:#0B3C33;font-weight:700;background:var(--primary-soft)}
.header-actions{display:flex;align-items:center;gap:10px;flex:none}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:var(--surface);cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s,opacity .2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
/* ---------- drawer ---------- */
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:302px;max-width:86vw;z-index:90;
  background:var(--surface);box-shadow:var(--sh-3);
  padding:20px 20px 28px;display:flex;flex-direction:column;gap:8px;
  transform:translateX(-104%);transition:transform .3s ease;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:var(--bg);font-size:20px;line-height:1;cursor:pointer}
.drawer-close:hover{background:var(--alt)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin:14px 0 8px}
.drawer-nav a{padding:13px 14px;border-radius:12px;font-size:16px;color:var(--ink-2);transition:background .18s,color .18s}
.drawer-nav a:hover,.drawer-nav a.active{background:var(--primary-soft);color:#0B3C33;font-weight:600}
.drawer-cta{margin-top:auto}
.drawer-mask{
  position:fixed;inset:0;background:rgba(22,25,28,.45);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
/* ---------- article top ---------- */
.article-top{background:var(--bg);padding:26px 0 52px;position:relative;overflow:hidden}
.article-top::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:url(/assets/images/1c3acde946fbdc91.webp);
  background-size:cover;background-position:center;opacity:.05;
}
.breadcrumb{
  position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--ink-3);line-height:1.6;
}
.breadcrumb a{color:var(--ink-2);transition:color .18s ease}
.breadcrumb a:hover{color:var(--primary-dark);text-decoration:underline;text-underline-offset:3px}
.breadcrumb .sep{color:#C6BFB2;font-family:var(--mono)}
.breadcrumb .current{color:var(--ink-3);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{position:relative;padding-top:22px}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:6px 13px;border-radius:var(--r-badge);
  background:var(--primary-soft);color:#0B6B59;font-size:12.5px;font-weight:600;letter-spacing:.3px;
}
.tag-accent{background:var(--accent-soft);color:#B24A16}
.article-title{
  font-size:42px;line-height:1.3;font-weight:800;letter-spacing:-.4px;
  margin:18px 0 0;max-width:920px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;margin-top:20px;
  font-size:14px;color:var(--ink-3);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px}
.article-meta .meta-label{color:#9AA2A9}
.article-meta .meta-item + .meta-item{position:relative;padding-left:22px}
.article-meta .meta-item + .meta-item::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:1px;height:12px;background:var(--line);
}
.article-cover{
  position:relative;margin-top:30px;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);background:var(--alt);aspect-ratio:16/9;box-shadow:var(--sh-1);
}
.article-cover img{width:100%;height:100%;object-fit:cover}
.figure-cap{margin-top:12px;font-size:13px;color:var(--ink-3);line-height:1.7}
/* ---------- article main / body ---------- */
.article-main{background:var(--surface);border-top:1px solid var(--line);padding:52px 0 76px}
.article-body{
  max-width:740px;margin:0 auto;font-size:16.5px;line-height:1.9;color:var(--ink-2);
  word-break:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body h2{
  font-size:28px;line-height:1.45;color:var(--ink);font-weight:800;
  margin:44px 0 16px;padding-left:14px;border-left:4px solid var(--primary);
}
.article-body h3{font-size:21px;line-height:1.5;color:var(--ink);font-weight:700;margin:32px 0 12px}
.article-body h4{font-size:18px;color:var(--ink);font-weight:700;margin:26px 0 10px}
.article-body p{margin:0 0 18px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:9px}
.article-body li::marker{color:var(--primary)}
.article-body blockquote{
  margin:26px 0;padding:16px 22px;background:var(--alt);color:var(--ink);
  border-left:4px solid var(--primary);border-radius:0 var(--r-card) var(--r-card) 0;
  font-size:16px;line-height:1.85;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:24px 0;border:1px solid var(--line)}
.article-body a{color:var(--primary-dark);text-decoration:underline;text-underline-offset:3px;font-weight:600}
.article-body a:hover{color:#0B6B59}
.article-body strong{color:var(--ink);font-weight:700}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;line-height:1.7;
  border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left;vertical-align:top}
.article-body th{background:var(--alt);color:var(--ink);font-weight:700}
.article-body code{
  background:var(--alt);color:#0B5C4E;padding:2px 7px;border-radius:6px;
  font-family:var(--mono);font-size:.9em;
}
.article-body pre{
  background:var(--ink);color:#E9EEF2;padding:20px;border-radius:14px;
  overflow:auto;margin:24px 0;font-size:14px;line-height:1.7;
}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0}
/* ---------- empty state ---------- */
.empty-state{
  max-width:740px;margin:0 auto;padding:52px 30px;text-align:center;
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
}
.empty-state h2{font-size:24px;font-weight:800;color:var(--ink);margin-bottom:12px}
.empty-state p{font-size:15.5px;color:var(--ink-2);margin-bottom:24px}
/* ---------- recap ---------- */
.recap{
  max-width:740px;margin:44px auto 0;padding:28px 30px;background:var(--bg);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
}
.recap h2{
  font-size:19px;font-weight:800;color:var(--ink);margin-bottom:16px;
  display:flex;align-items:center;gap:10px;
}
.recap h2::before{content:"";width:4px;height:18px;border-radius:2px;background:var(--primary)}
.recap ol{list-style:none;counter-reset:recap;margin:0;padding:0}
.recap li{
  position:relative;counter-increment:recap;padding-left:40px;margin-bottom:14px;
  font-size:15.5px;color:var(--ink-2);line-height:1.8;
}
.recap li:last-child{margin-bottom:0}
.recap li::before{
  content:counter(recap,decimal-leading-zero);
  position:absolute;left:0;top:2px;width:28px;height:28px;border-radius:8px;
  display:grid;place-items:center;background:var(--primary-soft);color:#0B6B59;
  font-family:var(--mono);font-size:13px;font-weight:700;
}
/* ---------- block head ---------- */
.block-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px}
.block-title{
  position:relative;padding-left:14px;font-size:24px;font-weight:800;color:var(--ink);
  line-height:1.4;margin:0;
}
.block-title::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:20px;border-radius:2px;background:var(--primary);
}
.block-sub{font-size:14px;color:var(--ink-3)}
/* ---------- related ---------- */
.related{max-width:1080px;margin:60px auto 0}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.post-card:hover,.post-card:focus-within{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D8D2C7}
.post-card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--alt)}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.post-card:hover .thumb img{transform:scale(1.03)}
.post-card .thumb .tag{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.94);color:#0B6B59;backdrop-filter:blur(4px)}
.post-card .body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-card h3{font-size:17px;font-weight:700;line-height:1.6;color:var(--ink)}
.post-card h3 a:hover{color:var(--primary-dark)}
.post-card p{font-size:14px;color:var(--ink-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card .card-meta{margin-top:auto;font-size:12.5px;color:var(--ink-3);font-family:var(--mono)}
/* ---------- prev / next ---------- */
.post-nav{max-width:1080px;margin:44px auto 0;display:grid;grid-template-columns:1fr 1fr;gap:18px}
.post-nav a{
  display:flex;flex-direction:column;gap:8px;padding:22px 24px;background:var(--bg);
  border:1px solid var(--line);border-radius:var(--r-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-nav a:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D8D2C7}
.post-nav .dir{font-size:12.5px;color:var(--ink-3);font-family:var(--mono);letter-spacing:1px}
.post-nav .txt{font-size:16px;font-weight:700;color:var(--ink);line-height:1.6}
.post-nav .next{text-align:right;align-items:flex-end}
/* ---------- cta ---------- */
.cta-section{background:var(--alt);padding:58px 0}
.cta-bar{
  background:var(--ink);color:#fff;border-radius:24px;padding:40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  border:1px solid rgba(255,255,255,.12);
}
.cta-bar h2{font-size:26px;font-weight:800;line-height:1.4;margin-bottom:10px;color:#fff}
.cta-bar p{font-size:15px;color:#C9CFD4;line-height:1.8;max-width:560px;margin:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#C9CFD4;padding:64px 0 0;border-top:1px solid rgba(255,255,255,.08)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.site-footer .brand{color:#fff;margin-bottom:16px}
.site-footer .brand-mark{background:rgba(18,194,160,.16);color:var(--primary)}
.site-footer .brand-text em{color:#8F999F}
.footer-brand p{font-size:14.5px;line-height:1.85;color:#A9B2B8;max-width:340px}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.4px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:11px}
.footer-col a,.footer-col span{font-size:14px;color:#A9B2B8;transition:color .18s ease}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8F999F;
}
.footer-bottom .mono{color:#6F797F;font-size:12.5px}
/* ---------- responsive ---------- */
@media (max-width:1279px){
  .article-title{font-size:38px}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .header-inner{gap:16px}
  .article-title{font-size:33px}
  .article-body h2{font-size:25px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .header-inner{height:70px}
  .site-header.is-scrolled .header-inner{height:62px}
  .header-actions .btn{display:none}
  .article-top{padding:20px 0 40px}
  .article-title{font-size:28px;margin-top:14px}
  .article-meta{font-size:13px;gap:8px 16px}
  .article-meta .meta-item + .meta-item{padding-left:16px}
  .article-main{padding:36px 0 56px}
  .article-body{font-size:16px;line-height:1.88}
  .article-body h2{font-size:22px;margin:34px 0 14px}
  .article-body h3{font-size:19px;margin:26px 0 10px}
  .recap{padding:22px 20px;margin-top:34px}
  .block-title{font-size:21px}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .post-nav{grid-template-columns:minmax(0,1fr)}
  .post-nav .next{text-align:left;align-items:flex-start}
  .cta-section{padding:44px 0}
  .cta-bar{padding:26px;border-radius:18px}
  .cta-bar h2{font-size:21px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:480px){
  .article-title{font-size:25px;line-height:1.36}
  .breadcrumb{font-size:12.5px}
  .breadcrumb .current{white-space:normal}
  .article-cover{aspect-ratio:16/10}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
}

/* roulang page: category1 */
:root{
  --primary:#12C2A0;
  --primary-dark:#0FA98B;
  --primary-soft:rgba(18,194,160,.12);
  --accent:#FF7A3D;
  --accent-soft:rgba(255,122,61,.12);
  --ink:#16191C;
  --ink-2:#4A5259;
  --ink-3:#7C868E;
  --bg:#FAF7F2;
  --surface:#FFFFFF;
  --alt:#F0EDE6;
  --line:#E4DFD6;
  --danger:#D64545;
  --r-card:16px;
  --r-btn:999px;
  --r-input:12px;
  --r-img:14px;
  --r-badge:8px;
  --sh-1:0 1px 2px rgba(22,25,28,.04);
  --sh-2:0 8px 24px rgba(22,25,28,.10);
  --sh-3:0 16px 40px rgba(22,25,28,.14);
  --container:1200px;
  --mono:ui-monospace,"SF Mono",SFMono-Regular,"DIN Alternate",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.mono{font-family:var(--mono)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:transform .18s ease,background .18s ease,color .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--primary);color:#062B24}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-1px)}
.btn-sm{padding:10px 20px;font-size:14px}
.text-link{position:relative;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary-dark)}
.text-link::after{content:"→";transition:transform .18s ease}
.text-link:hover{text-decoration:underline;text-underline-offset:4px}
.text-link:hover::after{transform:translateX(3px)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(250,247,242,.92);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{background:#fff;border-bottom-color:var(--line);box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:24px;height:84px;transition:height .25s ease}
.site-header.is-scrolled .header-inner{height:68px}
.brand{display:flex;align-items:center;gap:11px;flex:none}
.brand-mark{
  display:grid;place-items:center;width:40px;height:40px;border-radius:12px;
  background:var(--primary-soft);color:var(--primary);flex:none;
}
.brand-text{font-size:19px;font-weight:800;letter-spacing:.6px;line-height:1.1}
.brand-text em{display:block;font-style:normal;font-size:11px;font-weight:500;letter-spacing:2px;color:var(--ink-3);margin-top:3px}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  padding:9px 15px;border-radius:var(--r-btn);font-size:15px;color:var(--ink-2);
  transition:background .18s ease,color .18s ease;white-space:nowrap;
}
.nav-link:hover{background:var(--alt);color:var(--ink)}
.nav-link.active{color:#0B3C33;font-weight:700;background:var(--primary-soft)}
.header-actions{display:flex;align-items:center;gap:10px;flex:none}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:var(--surface);cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:302px;max-width:86vw;z-index:90;
  background:var(--surface);box-shadow:var(--sh-3);
  padding:20px 20px 28px;display:flex;flex-direction:column;gap:8px;
  transform:translateX(-104%);transition:transform .3s ease;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:var(--bg);font-size:20px;line-height:1;cursor:pointer}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin:14px 0 8px}
.drawer-nav a{padding:13px 14px;border-radius:12px;font-size:16px;color:var(--ink-2);transition:background .18s,color .18s}
.drawer-nav a:hover,.drawer-nav a.active{background:var(--primary-soft);color:#0B3C33;font-weight:600}
.drawer-cta{margin-top:auto}
.drawer-mask{
  position:fixed;inset:0;background:rgba(22,25,28,.45);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ---------- common section ---------- */
.section{padding:72px 0}
.section-alt{background:var(--alt)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;flex-wrap:wrap}
.section-title{position:relative;padding-left:16px;font-size:30px;font-weight:800;letter-spacing:-.3px;line-height:1.35}
.section-title::before{content:"";position:absolute;left:0;top:9px;bottom:9px;width:4px;border-radius:2px;background:var(--primary)}
.section-desc{margin-top:10px;padding-left:16px;color:var(--ink-2);font-size:15px;max-width:660px}

/* ---------- badges & chips ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:var(--r-badge);
  font-size:12px;font-weight:600;letter-spacing:.3px;line-height:1.5;
  background:var(--primary-soft);color:#0B6B59;
}
.badge-accent{background:var(--accent-soft);color:#B84A16}
.badge-muted{background:var(--alt);color:var(--ink-3)}
.badge-dark{background:rgba(22,25,28,.82);color:#fff;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}
.badge-float{position:absolute;left:12px;top:12px;z-index:2}
.chip{
  display:inline-flex;align-items:center;padding:7px 14px;border-radius:var(--r-btn);
  background:var(--bg);border:1px solid var(--line);font-size:13px;color:var(--ink-2);
  transition:background .18s ease,border-color .18s ease,color .18s ease,transform .18s ease;
}
.chip:hover{background:var(--primary-soft);border-color:transparent;color:#0B6B59;transform:translateY(-1px)}

/* ---------- page head ---------- */
.page-head{position:relative;overflow:hidden;padding:34px 0 46px;border-bottom:1px solid var(--line)}
.page-head::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/820f09cdfadb7024.jpg);
  background-size:cover;background-position:center;opacity:.055;pointer-events:none;
}
.page-head .container{position:relative;z-index:1}
.crumbs{display:flex;align-items:center;flex-wrap:wrap;gap:9px;font-size:13px;color:var(--ink-3)}
.crumbs a{transition:color .18s ease}
.crumbs a:hover{color:var(--primary-dark)}
.crumbs span[aria-current]{color:var(--ink-2)}
.head-grid{display:grid;grid-template-columns:minmax(0,1fr) 336px;gap:44px;align-items:start;margin-top:22px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-btn);
  background:var(--primary-soft);color:#0B6B59;font-size:13px;font-weight:600;letter-spacing:.4px;
}
.page-head h1{margin-top:18px;font-size:42px;font-weight:800;letter-spacing:-.6px;line-height:1.25}
.page-lede{margin-top:16px;font-size:16px;color:var(--ink-2);max-width:680px;line-height:1.9}
.head-facts{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.quick-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);
}
.quick-panel h2{font-size:15px;font-weight:800;letter-spacing:.4px}
.quick-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.quick-note{
  margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--ink-3);line-height:1.8;
}
.quick-note b{color:var(--ink);font-family:var(--mono);font-size:15px}

/* ---------- filter ---------- */
.filter-section{background:var(--alt);padding:30px 0 34px;border-bottom:1px solid var(--line)}
.filter-card{
  display:flex;flex-wrap:wrap;gap:16px 18px;align-items:flex-end;justify-content:space-between;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh-1);
}
.filter-group{display:flex;flex-direction:column;gap:7px;min-width:150px;flex:0 1 auto}
.filter-group label{font-size:12px;color:var(--ink-3);letter-spacing:.6px;font-weight:600}
.filter-group select{
  height:44px;padding:0 38px 0 14px;border-radius:var(--r-input);border:1px solid var(--line);
  background-color:var(--bg);
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5 6 6.5l5-5' fill='none' stroke='%237C868E' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;
  font-size:14px;color:var(--ink);appearance:none;-webkit-appearance:none;cursor:pointer;
  transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.filter-group select:hover{border-color:#CFC8BB}
.filter-group select:focus{outline:none;border-color:var(--primary);background-color:#fff;box-shadow:0 0 0 3px var(--primary-soft)}
.result-count{font-size:14px;color:var(--ink-2);white-space:nowrap;padding-bottom:9px}
.result-count strong{font-family:var(--mono);font-size:20px;color:var(--ink);margin:0 2px}

/* ---------- route cards ---------- */
.route-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.route-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.route-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D9D2C5}
.route-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--alt)}
.route-media img{width:100%;height:100%;object-fit:cover;transition:transform .38s ease}
.route-card:hover .route-media img{transform:scale(1.03)}
.route-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.route-title{font-size:20px;font-weight:800;letter-spacing:-.2px;line-height:1.4}
.route-line{margin-top:8px;font-size:13px;color:var(--ink-3)}
.route-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;
  margin:16px 0;padding:13px 0;
  border-top:1px dashed var(--line);border-bottom:1px dashed var(--line);
}
.route-stats dt{font-size:11px;color:var(--ink-3);letter-spacing:.6px}
.route-stats dd{margin:3px 0 0;font-family:var(--mono);font-size:14px;font-weight:600;color:var(--ink);line-height:1.5}
.route-desc{font-size:14px;color:var(--ink-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.route-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:16px}
.more-wrap{display:flex;justify-content:center;margin-top:38px}

/* ---------- districts ---------- */
.district-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:16px}
.district{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-img);
  padding:20px 18px;transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.district:hover{border-color:#D9D2C5;box-shadow:var(--sh-1);transform:translateY(-2px)}
.district strong{display:block;font-size:16px;font-weight:700;letter-spacing:.2px}
.district span{display:block;margin-top:6px;font-size:12px;color:var(--ink-3);line-height:1.7}
.district .mono{color:var(--primary-dark);font-size:13px;font-weight:600;margin-top:10px;display:block}

/* ---------- tips ---------- */
.tip-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.tip{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--sh-1)}
.tip-icon{
  width:42px;height:42px;border-radius:12px;background:var(--primary-soft);color:var(--primary-dark);
  display:grid;place-items:center;margin-bottom:16px;
}
.tip h3{font-size:18px;font-weight:800;line-height:1.45}
.tip p{margin-top:10px;font-size:14px;color:var(--ink-2);line-height:1.85}

/* ---------- faq ---------- */
.faq-layout{display:grid;grid-template-columns:340px minmax(0,1fr);gap:44px;align-items:start}
.faq-side p{margin-top:14px;padding-left:16px;font-size:14px;color:var(--ink-2);line-height:1.9;max-width:300px}
.faq-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:15px 22px;font-size:16px;font-weight:600;cursor:pointer;
  list-style:none;transition:background .18s ease,color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::marker{content:""}
.faq-item summary:hover{background:var(--alt)}
.faq-item summary::after{
  content:"+";font-family:var(--mono);font-size:20px;line-height:1;color:var(--primary-dark);flex:none;
  transition:transform .2s ease;
}
.faq-item[open] summary{color:#0B3C33}
.faq-item[open] summary::after{content:"−"}
.faq-answer{padding:0 22px 20px 46px;font-size:15px;color:var(--ink-2);line-height:1.9}

/* ---------- cta band ---------- */
.cta-band{background:var(--alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:42px 0;flex-wrap:wrap}
.cta-inner h2{font-size:26px;font-weight:800;letter-spacing:-.2px;line-height:1.4}
.cta-inner p{margin-top:10px;font-size:15px;color:var(--ink-2);max-width:580px}

/* ---------- footer ---------- */
.site-footer{background:#16191C;color:#C9CFD4;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:44px}
.footer-brand .brand{color:#fff}
.footer-brand .brand-mark{background:rgba(18,194,160,.16);color:var(--primary)}
.footer-brand .brand-text em{color:#7C868E}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.9;color:#9AA3AA;max-width:330px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700;letter-spacing:.3px}
.footer-col ul li{margin-bottom:11px;font-size:14px;color:#9AA3AA;line-height:1.7}
.footer-col a{transition:color .18s ease}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7C868E;
}
.site-footer .mono{color:#7C868E}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 28px}
  .head-grid{grid-template-columns:minmax(0,1fr) 300px;gap:34px}
  .district-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .header-actions .btn{display:none}
  .head-grid{grid-template-columns:1fr;gap:28px}
  .page-head h1{font-size:34px}
  .route-grid{grid-template-columns:1fr}
  .faq-layout{grid-template-columns:1fr;gap:26px}
  .faq-side p{max-width:none}
  .tip-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .section{padding:56px 0}
  .cta-inner{padding:34px 0}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .header-inner{height:70px}
  .site-header.is-scrolled .header-inner{height:62px}
  .page-head{padding:26px 0 36px}
  .page-head h1{font-size:28px}
  .page-lede{font-size:15px}
  .section{padding:48px 0}
  .section-title{font-size:24px}
  .section-desc{font-size:14px}
  .route-grid{gap:18px}
  .route-body{padding:18px}
  .route-stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
  .route-foot{flex-wrap:wrap;gap:10px}
  .district-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-inner h2{font-size:22px}
  .cta-inner .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:34px}
  .faq-item summary{padding:14px 18px;font-size:15px}
  .faq-answer{padding:0 18px 18px 18px}
}
@media (max-width:480px){
  .filter-group{min-width:0;flex:1 1 100%}
  .result-count{padding-bottom:0}
  .route-stats{grid-template-columns:1fr 1fr}
  .head-facts .badge{font-size:11px}
  .breadcrumbs{font-size:12px}
}