/* roulang page: index */
:root{
  --c-primary:#12857A;
  --c-primary-dark:#0B635B;
  --c-primary-soft:#E3F3F0;
  --c-accent:#F2762E;
  --c-accent-soft:#FDEDE2;
  --c-ink:#16211F;
  --c-ink-2:#3C4B48;
  --c-muted:#6C7A77;
  --c-line:#E6E1D8;
  --c-bg:#FBF8F3;
  --c-surface:#FFFFFF;
  --c-dark:#0E2422;
  --radius-s:10px;
  --radius-m:16px;
  --radius-l:24px;
  --radius-pill:999px;
  --shadow-1:0 2px 8px rgba(22,33,31,.06);
  --shadow-2:0 10px 30px rgba(18,133,122,.10);
  --shadow-3:0 18px 48px rgba(14,36,34,.14);
  --container:1200px;
  --gutter:24px;
  --section-y:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0}
time,.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--gutter)}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--c-line);
  backdrop-filter:saturate(1.3) blur(8px);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.header-inner{height:86px;display:flex;align-items:center;gap:26px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{color:var(--c-primary);display:flex;align-items:center}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-text strong{font-size:19px;font-weight:800;letter-spacing:.02em}
.brand-text em{font-style:normal;font-size:11px;letter-spacing:.14em;color:var(--c-muted);margin-top:4px}
.main-nav{display:flex;align-items:center;gap:4px}
.main-nav a{position:relative;padding:10px 14px;font-size:15px;font-weight:500;color:var(--c-ink-2);border-radius:var(--radius-s);transition:color .18s ease,background .18s ease}
.main-nav a::after{content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;border-radius:2px;background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .22s ease}
.main-nav a:hover{color:var(--c-primary)}
.main-nav a:hover::after,.main-nav a.is-active::after{transform:scaleX(1)}
.main-nav a.is-active{color:var(--c-primary);font-weight:600}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.city-select{position:relative;display:flex;align-items:center}
.city-select select{
  appearance:none;-webkit-appearance:none;
  padding:9px 34px 9px 15px;font-size:14px;color:var(--c-ink-2);
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-pill);cursor:pointer;transition:border-color .18s ease;
}
.city-select select:hover{border-color:rgba(18,133,122,.45)}
.city-select::after{
  content:"";position:absolute;right:15px;top:calc(50% - 4px);
  width:7px;height:7px;border-right:2px solid var(--c-muted);border-bottom:2px solid var(--c-muted);
  transform:rotate(45deg);pointer-events:none;
}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);
  align-items:center;justify-content:center;background:var(--c-surface);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);position:relative;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 6px 16px rgba(242,118,46,.26)}
.btn-primary:hover{background:#DA611B;transform:translateY(-1px);box-shadow:0 12px 26px rgba(242,118,46,.32)}
.btn-primary:active{transform:none;box-shadow:0 4px 10px rgba(242,118,46,.22)}
.btn-outline{background:transparent;color:var(--c-primary);border:1.5px solid var(--c-primary)}
.btn-outline:hover{background:var(--c-primary-soft)}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.5)}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff}
.btn-sm{padding:11px 20px;font-size:14px}
.btn-block{width:100%}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* ============ hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:64px 0 44px;
  background:
    radial-gradient(1050px 460px at 88% -12%, var(--c-primary-soft), transparent 62%),
    radial-gradient(680px 380px at -5% 20%, var(--c-accent-soft), transparent 68%),
    linear-gradient(180deg,#FFFDF9 0%, var(--c-bg) 100%);
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:52px;align-items:center}
.eyebrow{font-size:12px;letter-spacing:.16em;font-weight:600;color:var(--c-primary);margin-bottom:14px}
.hero h1{font-size:clamp(30px,4vw,52px);line-height:1.15;font-weight:800;letter-spacing:-.02em;margin-bottom:18px}
.hero-sub{font-size:17px;color:var(--c-ink-2);margin-bottom:30px;max-width:34ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px}
.hero-badges li{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:var(--c-ink-2);
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-pill);padding:7px 15px;
}
.hero-badges li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-primary)}
.hero-media{position:relative}
.hero-photo{aspect-ratio:4/5;border-radius:var(--radius-l);overflow:hidden;background:var(--c-primary-soft);box-shadow:var(--shadow-3)}
.hero-photo img{width:100%;height:100%;object-fit:cover}
.hero-float{
  position:absolute;left:-26px;bottom:30px;max-width:308px;
  display:flex;gap:10px;padding:14px 16px;background:#fff;
  border:1px solid var(--c-line);border-radius:var(--radius-m);box-shadow:var(--shadow-3);
}
.hero-float .dot{width:9px;height:9px;border-radius:50%;background:var(--c-accent);flex:0 0 auto;margin-top:7px;box-shadow:0 0 0 4px var(--c-accent-soft)}
.hero-float strong{display:block;font-size:13.5px;color:var(--c-ink)}
.hero-float p{font-size:12.5px;color:var(--c-muted);line-height:1.6;margin-top:3px}
.city-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:46px;padding-top:26px;border-top:1px dashed var(--c-line)}
.city-chips a{
  font-size:13.5px;color:var(--c-ink-2);background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--radius-pill);
  padding:8px 17px;transition:.18s ease;
}
.city-chips a:hover{color:var(--c-primary-dark);background:var(--c-primary-soft);border-color:rgba(18,133,122,.35)}

/* ============ sections ============ */
.section{padding:var(--section-y) 0}
.section-surface{background:var(--c-surface)}
.section-alt{background:var(--c-bg)}
.section-line{border-top:1px solid var(--c-line)}
.section-head{max-width:780px;margin-bottom:40px}
.section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;margin-bottom:14px}
.section-desc{font-size:16px;line-height:1.8;color:var(--c-ink-2)}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px}
.section-head-row .section-head{margin-bottom:0}

/* ============ ability ============ */
.ability-grid{display:grid;grid-template-columns:2fr 1fr;gap:24px}
.ability-main{
  position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:space-between;
  min-height:330px;padding:40px;color:#fff;border-radius:var(--radius-l);
  background:linear-gradient(140deg,#0B635B 0%,#12857A 52%,#17A092 100%);
  box-shadow:var(--shadow-2);
}
.ability-main::after{
  content:"";position:absolute;right:-70px;bottom:-90px;width:280px;height:280px;border-radius:50%;
  border:26px solid rgba(255,255,255,.10);
}
.ability-main h3{font-size:clamp(22px,2.3vw,28px);line-height:1.3;margin-bottom:14px;position:relative}
.ability-main p{position:relative;max-width:46ch;color:rgba(255,255,255,.84);font-size:15px;line-height:1.8}
.ability-link{
  position:relative;display:inline-flex;align-items:center;gap:8px;margin-top:26px;
  font-size:14.5px;font-weight:600;color:#fff;transition:gap .2s ease;
}
.ability-link:hover{gap:14px}
.ability-side{display:grid;gap:24px}
.ability-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-m);
  padding:26px;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.ability-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(18,133,122,.35)}
.ability-card h3{font-size:18px;margin-bottom:10px}
.ability-card p{font-size:14px;color:var(--c-muted);line-height:1.75;margin-bottom:16px}
.mini-link{font-size:13.5px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;margin-top:auto;transition:gap .2s ease}
.mini-link:hover{gap:12px}

/* ============ channel wall ============ */
.channel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.channel-card{
  display:flex;flex-direction:column;gap:10px;padding:22px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-m);
  box-shadow:var(--shadow-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.channel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(18,133,122,.35)}
.channel-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;background:var(--c-primary-soft);color:var(--c-primary-dark);
}
.channel-card:nth-child(3n) .channel-icon{background:var(--c-accent-soft);color:#BC5316}
.channel-card h3{font-size:16.5px;font-weight:600}
.channel-card p{font-size:13.5px;color:var(--c-muted);line-height:1.7}
.channel-count{
  align-self:flex-start;margin-top:auto;font-size:12px;
  padding:3px 11px;border-radius:var(--radius-pill);
  background:var(--c-primary-soft);color:var(--c-primary-dark);
}
.channel-foot{margin-top:28px;display:flex;justify-content:center}

/* ============ chat ============ */
.chat-grid{display:grid;grid-template-columns:5fr 7fr;gap:52px;align-items:center}
.chat-shot{position:relative;aspect-ratio:4/5;border-radius:var(--radius-l);overflow:hidden;box-shadow:var(--shadow-3);background:var(--c-primary-soft)}
.chat-shot img{width:100%;height:100%;object-fit:cover}
.chat-badge{
  position:absolute;top:16px;left:16px;font-size:12px;padding:6px 14px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.92);color:var(--c-primary-dark);font-weight:600;backdrop-filter:blur(4px);
}
.chat-points li{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--c-line)}
.chat-points li:last-child{border-bottom:0;padding-bottom:0}
.chat-points li:first-child{padding-top:0}
.point-num{
  flex:0 0 auto;width:34px;height:34px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;background:var(--c-primary-soft);color:var(--c-primary-dark);
}
.chat-points h3{font-size:16.5px;margin-bottom:6px}
.chat-points p{font-size:14px;color:var(--c-muted);line-height:1.75}

/* ============ run scroller ============ */
.run-scroller{
  display:grid;grid-auto-flow:column;grid-auto-columns:minmax(258px,1fr);gap:20px;
  overflow-x:auto;padding-bottom:14px;scroll-snap-type:x mandatory;
  scrollbar-width:thin;
}
.run-scroller::-webkit-scrollbar{height:6px}
.run-scroller::-webkit-scrollbar-thumb{background:var(--c-line);border-radius:99px}
.run-card{
  scroll-snap-align:start;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-m);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.run-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(18,133,122,.35)}
.run-thumb{aspect-ratio:4/3;overflow:hidden;background:var(--c-primary-soft)}
.run-thumb img{width:100%;height:100%;object-fit:cover}
.run-body{padding:18px 20px 22px}
.run-body h3{font-size:16.5px;margin-bottom:10px}
.run-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.tag{display:inline-block;font-size:12px;padding:3px 11px;border-radius:var(--radius-pill);background:var(--c-primary-soft);color:var(--c-primary-dark)}
.tag-accent{background:var(--c-accent-soft);color:#BC5316}
.run-meta{font-size:13px;color:var(--c-muted);display:flex;align-items:center;gap:8px}

/* ============ cross city ============ */
.cross-grid{display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:start}
.cloud{display:flex;flex-wrap:wrap;gap:9px}
.cloud span{
  font-size:13.5px;padding:7px 14px;border-radius:var(--radius-pill);
  background:var(--c-surface);border:1px solid var(--c-line);color:var(--c-ink-2);
  transition:.18s ease;
}
.cloud span:hover{background:var(--c-primary-soft);border-color:rgba(18,133,122,.35);color:var(--c-primary-dark)}
.cross-list li{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--c-line)}
.cross-list li:first-child{padding-top:0}
.cross-list li:last-child{border-bottom:0}
.cross-list h3{font-size:16px;margin-bottom:6px}
.cross-list p{font-size:14px;color:var(--c-muted);line-height:1.75}
.dot-mark{flex:0 0 auto;width:8px;height:8px;border-radius:50%;background:var(--c-accent);margin-top:10px}
.stat-bar{
  margin-top:24px;display:grid;grid-template-columns:repeat(3,1fr);gap:16px;
  padding:22px;border-radius:var(--radius-m);
  background:linear-gradient(140deg,#0B635B,#12857A);color:#fff;box-shadow:var(--shadow-2);
}
.stat-bar b{display:block;font-size:clamp(20px,2.2vw,26px);font-weight:800;line-height:1.2;font-variant-numeric:tabular-nums}
.stat-bar span{font-size:12.5px;color:rgba(255,255,255,.76)}

/* ============ news ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-m);overflow:hidden;box-shadow:var(--shadow-1);height:100%;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(18,133,122,.35)}
.post-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-soft)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{
  font-size:16.5px;line-height:1.5;font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-body p{
  font-size:13.5px;color:var(--c-muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:8px}
.post-meta time{font-size:12.5px;color:var(--c-muted)}
.post-meta .arrow{font-size:15px;color:var(--c-primary);transition:transform .2s ease}
.post-card:hover .post-meta .arrow{transform:translateX(4px)}
.empty-state{
  border:1.5px dashed var(--c-line);border-radius:var(--radius-m);
  padding:56px 24px;text-align:center;background:var(--c-surface);
}
.empty-icon{
  width:52px;height:52px;margin:0 auto 16px;border-radius:16px;background:var(--c-primary-soft);
  display:flex;align-items:center;justify-content:center;color:var(--c-primary-dark);font-size:20px;font-weight:700;
}
.empty-state p{color:var(--c-muted);font-size:14.5px;margin-bottom:20px}

/* ============ steps ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.step{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-m);
  padding:26px 24px;box-shadow:var(--shadow-1);position:relative;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(18,133,122,.35)}
.step-num{
  font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--c-accent);
  font-variant-numeric:tabular-nums;margin-bottom:14px;display:block;
}
.step h3{font-size:16.5px;margin-bottom:8px}
.step p{font-size:13.5px;color:var(--c-muted);line-height:1.75}

/* ============ safety ============ */
.safety-grid{display:grid;grid-template-columns:5fr 7fr;gap:52px;align-items:center}
.safety-shot{aspect-ratio:4/3;border-radius:var(--radius-l);overflow:hidden;box-shadow:var(--shadow-3);background:var(--c-primary-soft)}
.safety-shot img{width:100%;height:100%;object-fit:cover}
.check-list{display:grid;grid-template-columns:1fr 1fr;gap:16px 24px}
.check-list li{display:flex;gap:11px;font-size:14.5px;color:var(--c-ink-2);line-height:1.7}
.check-list li::before{
  content:"";flex:0 0 auto;width:20px;height:20px;margin-top:3px;border-radius:50%;
  background:var(--c-primary-soft) url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2312857A' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'><polyline points='20 6 9 17 4 12'/></svg>") center/12px 12px no-repeat;
}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.badge-row span{
  font-size:13px;font-weight:600;padding:8px 16px;border-radius:var(--radius-pill);
  background:var(--c-accent-soft);color:#BC5316;
}

/* ============ city index ============ */
.city-index{display:grid;grid-template-columns:repeat(5,1fr);gap:28px}
.city-col h3{font-size:15px;margin-bottom:14px;color:var(--c-primary-dark);padding-bottom:10px;border-bottom:1px solid var(--c-line)}
.city-col li{font-size:14px;color:var(--c-ink-2);padding:5px 0;transition:color .18s ease}
.city-col li:hover{color:var(--c-primary)}

/* ============ reviews ============ */
.review-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:24px;align-items:stretch}
.review-main{
  background:linear-gradient(150deg,#0B635B,#12857A 70%,#159A8E);
  color:#fff;border-radius:var(--radius-l);padding:38px;box-shadow:var(--shadow-2);
  display:flex;flex-direction:column;justify-content:space-between;
}
.review-main blockquote{margin:0;font-size:clamp(18px,2vw,22px);line-height:1.7;font-weight:500}
.review-main .stars{color:#FFC978;letter-spacing:3px;font-size:15px;margin-bottom:18px}
.review-side{display:grid;gap:24px}
.review-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-m);
  padding:24px;box-shadow:var(--shadow-1);transition:transform .22s ease,box-shadow .22s ease;
}
.review-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.review-card .stars{color:var(--c-accent);letter-spacing:2px;font-size:13px;margin-bottom:10px}
.review-card p{font-size:14px;color:var(--c-ink-2);line-height:1.75;margin-bottom:14px}
.review-user{display:flex;align-items:center;gap:10px;margin-top:auto}
.avatar{
  width:38px;height:38px;border-radius:50%;flex:0 0 auto;
  background:var(--c-primary-soft);color:var(--c-primary-dark);
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;
}
.review-main .avatar{background:rgba(255,255,255,.18);color:#fff}
.review-user b{display:block;font-size:13.5px;font-weight:600}
.review-user span{font-size:12.5px;color:var(--c-muted)}
.review-main .review-user span{color:rgba(255,255,255,.75)}

/* ============ faq ============ */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-list{display:grid;gap:12px}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-s);box-shadow:var(--shadow-1);overflow:hidden;transition:border-color .2s ease}
.faq-item.is-open{border-color:rgba(18,133,122,.4)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;text-align:left;font-size:16px;font-weight:600;color:var(--c-ink);
}
.faq-icon{position:relative;flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:var(--c-primary-soft);transition:transform .28s ease,background .2s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;top:50%;left:50%;background:var(--c-primary-dark);border-radius:2px;transform:translate(-50%,-50%)}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px;transition:opacity .2s ease}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:var(--c-accent-soft)}
.faq-item.is-open .faq-icon::before,.faq-item.is-open .faq-icon::after{background:#BC5316}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a p{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--c-ink-2)}

/* ============ cooperate ============ */
.coop-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:start}
.form-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-l);padding:32px;box-shadow:var(--shadow-1)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{margin-bottom:18px;display:flex;flex-direction:column;gap:8px}
.field label{font-size:14px;font-weight:600;color:var(--c-ink)}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;font-size:14.5px;
  background:var(--c-surface);color:var(--c-ink);
  border:1px solid var(--c-line);border-radius:var(--radius-s);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{min-height:112px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px var(--c-primary-soft);
}
.field select{appearance:none;-webkit-appearance:none;cursor:pointer;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236C7A77' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>");
  background-repeat:no-repeat;background-position:right 14px center;background-size:16px;padding-right:40px;
}
.field input::placeholder,.field textarea::placeholder{color:#9CA8A5}
.form-tip{font-size:12.5px;color:var(--c-muted);margin-top:12px;line-height:1.7}
.benefit-list li{display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--c-line)}
.benefit-list li:last-child{border-bottom:0}
.benefit-icon{
  flex:0 0 auto;width:38px;height:38px;border-radius:12px;background:var(--c-accent-soft);color:#BC5316;
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;
}
.benefit-list h3{font-size:15.5px;margin-bottom:5px}
.benefit-list p{font-size:13.5px;color:var(--c-muted);line-height:1.7}

/* ============ download banner ============ */
.banner{
  background:radial-gradient(700px 320px at 85% 0%, rgba(242,118,46,.22), transparent 62%), var(--c-dark);
  color:#fff;border-radius:var(--radius-l);padding:48px;
  display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center;
  box-shadow:var(--shadow-3);
}
.banner h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;margin-bottom:14px}
.banner p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.76);max-width:46ch;margin-bottom:24px}
.banner-actions{display:flex;flex-wrap:wrap;gap:12px}
.store-btn{
  display:inline-flex;align-items:center;gap:10px;padding:12px 22px;border-radius:var(--radius-s);
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.22);
  transition:background .18s ease,transform .18s ease;
}
.store-btn:hover{background:rgba(255,255,255,.18);transform:translateY(-1px)}
.store-btn b{display:block;font-size:14px;font-weight:600;line-height:1.2}
.store-btn span{display:block;font-size:11.5px;color:rgba(255,255,255,.65)}
.qr-box{
  justify-self:end;width:168px;height:168px;border-radius:var(--radius-m);
  background:repeating-conic-gradient(#ffffff 0 25%, #cfd8d5 0 50%) 0 0/16px 16px;
  border:8px solid #fff;box-shadow:var(--shadow-3);
}
.qr-note{margin-top:12px;font-size:12.5px;color:rgba(255,255,255,.65);text-align:center}

/* ============ footer ============ */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-brand .brand-mark{color:#4FD1C0}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text em{color:rgba(255,255,255,.55)}
.footer-desc{font-size:13.5px;line-height:1.85;margin-top:18px;max-width:32ch;color:rgba(255,255,255,.66)}
.social-row{display:flex;gap:10px;margin-top:20px}
.social-row span{
  width:36px;height:36px;border-radius:11px;background:rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:center;font-size:12px;
  transition:background .18s ease;
}
.social-row span:hover{background:rgba(255,255,255,.18)}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col li{font-size:13.5px;padding:5px 0}
.footer-col a{color:rgba(255,255,255,.72);transition:color .18s ease}
.footer-col a:hover{color:#4FD1C0}
.footer-qr{
  width:104px;height:104px;border-radius:12px;margin-top:14px;
  background:repeating-conic-gradient(#ffffff 0 25%, #b9c5c1 0 50%) 0 0/12px 12px;border:6px solid #fff;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:12.5px;color:rgba(255,255,255,.55);
}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:#4FD1C0}

/* ============ mobile drawer ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,36,34,.5);z-index:95;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:84%;max-width:340px;z-index:96;
  background:var(--c-surface);padding:20px;overflow-y:auto;
  transform:translateX(100%);transition:transform .28s ease;
  display:flex;flex-direction:column;gap:8px;
}
.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(--c-line)}
.drawer-title{font-size:16px;font-weight:700}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:center;font-size:22px;line-height:1;color:var(--c-ink-2);
}
.drawer-nav{display:grid;gap:4px;margin-top:12px}
.drawer-nav a{padding:13px 14px;border-radius:var(--radius-s);font-size:15px;font-weight:500;color:var(--c-ink-2);transition:background .18s ease,color .18s ease}
.drawer-nav a:hover,.drawer-nav a.is-active{background:var(--c-primary-soft);color:var(--c-primary-dark)}
.drawer-block{margin-top:18px;padding-top:18px;border-top:1px solid var(--c-line)}
.drawer-block h4{font-size:13px;color:var(--c-muted);margin-bottom:10px;font-weight:600}
.drawer-actions{display:grid;gap:10px;margin-top:22px}

/* ============ responsive ============ */
@media (max-width:1199px){
  .header-inner{gap:18px}
  .main-nav a{padding:10px 10px;font-size:14.5px}
  .hero-grid{gap:40px}
  .channel-grid{grid-template-columns:repeat(3,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .city-index{grid-template-columns:repeat(3,1fr);gap:24px}
  .cross-grid,.chat-grid,.safety-grid,.coop-grid{gap:36px}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr}
  .footer-grid .footer-col:nth-child(4){display:none}
}
@media (max-width:991px){
  :root{--section-y:60px}
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .header-actions .city-select{display:none}
  .header-inner{height:72px}
  .hero{padding:44px 0 36px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{order:-1;max-width:440px}
  .hero-float{left:12px;bottom:12px;right:12px;max-width:none}
  .hero-sub{max-width:none}
  .ability-grid{grid-template-columns:1fr}
  .ability-side{grid-template-columns:1fr 1fr}
  .channel-grid{grid-template-columns:repeat(2,1fr)}
  .chat-grid,.safety-grid,.cross-grid,.coop-grid{grid-template-columns:1fr}
  .chat-shot{max-width:420px}
  .safety-shot{max-width:520px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .review-grid{grid-template-columns:1fr}
  .banner{grid-template-columns:1fr;padding:36px}
  .qr-box{justify-self:start}
  .qr-note{text-align:left}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-grid .footer-col:nth-child(4){display:block}
  .city-index{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:767px){
  :root{--gutter:16px;--section-y:48px}
  body{font-size:15.5px}
  .brand-text strong{font-size:17px}
  .brand-text em{font-size:10px;letter-spacing:.1em}
  .header-actions .btn-primary{display:none}
  .hero h1{font-size:clamp(27px,7.4vw,36px)}
  .hero-actions .btn{flex:1 1 auto;justify-content:center}
  .ability-side{grid-template-columns:1fr}
  .ability-main{padding:30px;min-height:auto}
  .channel-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .channel-card{padding:16px;gap:8px}
  .channel-card h3{font-size:15px}
  .channel-card p{font-size:12.5px}
  .channel-icon{width:38px;height:38px;border-radius:10px;font-size:15px}
  .news-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .check-list{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .form-card{padding:22px}
  .banner{padding:28px}
  .stat-bar{grid-template-columns:1fr;gap:14px;text-align:left}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .city-index{grid-template-columns:1fr 1fr;gap:20px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .review-main{padding:26px}
  .hero-float{position:static;margin-top:14px;max-width:none}
  .run-scroller{grid-auto-columns:minmax(240px,84%)}
  .section-head-row{gap:14px}
}
@media (max-width:520px){
  .hero-badges{flex-direction:column;align-items:flex-start}
  .city-chips a{font-size:12.5px;padding:7px 13px}
  .channel-card p{display:none}
  .post-body{padding:16px}
}

/* roulang page: article */
:root{
  --c-primary:#12857A;
  --c-primary-dark:#0B635B;
  --c-primary-soft:#E3F3F0;
  --c-accent:#F2762E;
  --c-accent-soft:#FDEDE2;
  --c-ink:#16211F;
  --c-ink-2:#3C4B48;
  --c-muted:#6C7A77;
  --c-line:#E6E1D8;
  --c-bg:#FBF8F3;
  --c-surface:#FFFFFF;
  --c-dark:#0E2422;
  --radius-s:10px;
  --radius-m:16px;
  --radius-l:24px;
  --radius-pill:999px;
  --shadow-1:0 2px 8px rgba(22,33,31,.06);
  --shadow-2:0 10px 30px rgba(18,133,122,.10);
  --shadow-3:0 18px 48px rgba(14,36,34,.14);
  --container:1200px;
  --gutter:24px;
  --section-y:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--gutter)}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--c-line);
  backdrop-filter:saturate(1.3) blur(8px);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.header-inner{height:86px;display:flex;align-items:center;gap:26px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{color:var(--c-primary);display:flex;align-items:center}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-text strong{font-size:19px;font-weight:800;letter-spacing:.02em}
.brand-text em{font-style:normal;font-size:11px;letter-spacing:.14em;color:var(--c-muted);margin-top:4px}
.main-nav{display:flex;align-items:center;gap:4px}
.main-nav a{position:relative;padding:10px 14px;font-size:15px;font-weight:500;color:var(--c-ink-2);border-radius:var(--radius-s);transition:color .18s ease,background .18s ease}
.main-nav a::after{content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;border-radius:2px;background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .22s ease}
.main-nav a:hover{color:var(--c-primary)}
.main-nav a:hover::after,.main-nav a.is-active::after{transform:scaleX(1)}
.main-nav a.is-active{color:var(--c-primary);font-weight:600}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.city-select{position:relative;display:flex;align-items:center}
.city-select select{
  appearance:none;-webkit-appearance:none;
  padding:9px 34px 9px 15px;font-size:14px;color:var(--c-ink-2);
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-pill);cursor:pointer;transition:border-color .18s ease;
}
.city-select select:hover{border-color:rgba(18,133,122,.45)}
.city-select::after{
  content:"";position:absolute;right:15px;top:calc(50% - 4px);
  width:7px;height:7px;border-right:2px solid var(--c-muted);border-bottom:2px solid var(--c-muted);
  transform:rotate(45deg);pointer-events:none;
}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);
  align-items:center;justify-content:center;background:var(--c-surface);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);position:relative;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 6px 16px rgba(242,118,46,.26)}
.btn-primary:hover{background:#DA611B;transform:translateY(-1px);box-shadow:0 12px 26px rgba(242,118,46,.32)}
.btn-primary:active{transform:none;box-shadow:0 4px 10px rgba(242,118,46,.22)}
.btn-outline{background:transparent;color:var(--c-primary);border:1.5px solid var(--c-primary)}
.btn-outline:hover{background:var(--c-primary-soft)}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.5)}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff}
.btn-sm{padding:11px 20px;font-size:14px}
.btn-block{width:100%}

/* ============ article head ============ */
.page-head{
  position:relative;overflow:hidden;
  padding:40px 0 38px;
  background:linear-gradient(180deg,#FFFDF9 0%,var(--c-bg) 100%);
  border-bottom:1px solid var(--c-line);
}
.page-head::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/d0c13d3cfcd789c0.webp') center/cover no-repeat;
  opacity:.09;pointer-events:none;
}
.page-head > .container{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-muted)}
.breadcrumb a{color:var(--c-ink-2);transition:color .18s ease}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#BFB9AE}
.breadcrumb .current{color:var(--c-muted)}
.head-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:var(--c-primary-soft);color:var(--c-primary-dark);
}
.badge-accent{background:var(--c-accent-soft);color:#C2551A}
.badge .dot{width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.7}
.article-title{
  font-size:clamp(26px,3.4vw,42px);
  line-height:1.28;
  font-weight:800;
  letter-spacing:-.015em;
  margin:14px 0 20px;
  max-width:24em;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:14px;color:var(--c-muted);font-variant-numeric:tabular-nums}
.meta-row .meta-strong{color:var(--c-ink-2);font-weight:600}
.meta-row .meta-sep{width:1px;height:13px;background:var(--c-line)}

/* ============ article layout ============ */
.article-section{padding:var(--section-y) 0}
.article-wrap{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:48px;align-items:start}
.entry{min-width:0}
.cover{margin:0 0 34px}
.cover img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--radius-l);
  background:var(--c-primary-soft);
  box-shadow:var(--shadow-2);
}
.cover figcaption{font-size:12px;color:var(--c-muted);padding-top:10px;line-height:1.7}

.entry-body{
  max-width:40em;
  font-size:16px;
  line-height:1.9;
  color:var(--c-ink-2);
}
.entry-body > * + *{margin-top:1.2em}
.entry-body h2{
  font-size:clamp(21px,2.1vw,26px);
  line-height:1.4;
  font-weight:700;
  color:var(--c-ink);
  margin-top:2em;
  padding-left:14px;
  border-left:4px solid var(--c-primary);
  border-radius:2px;
}
.entry-body h3{font-size:19px;line-height:1.45;font-weight:600;color:var(--c-ink);margin-top:1.6em}
.entry-body h4{font-size:17px;font-weight:600;color:var(--c-ink);margin-top:1.4em}
.entry-body p{margin:0}
.entry-body ul{list-style:disc;padding-left:1.35em}
.entry-body ol{list-style:decimal;padding-left:1.35em}
.entry-body li + li{margin-top:.5em}
.entry-body blockquote{
  margin:1.7em 0;padding:16px 22px;
  background:var(--c-primary-soft);
  border-left:3px solid var(--c-primary);
  border-radius:0 var(--radius-s) var(--radius-s) 0;
  color:var(--c-ink-2);font-size:15.5px;
}
.entry-body img{border-radius:var(--radius-m);margin:1.7em 0;width:100%;height:auto;background:var(--c-primary-soft)}
.entry-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;transition:color .18s ease}
.entry-body a:hover{color:var(--c-primary-dark)}
.entry-body table{width:100%;border-collapse:collapse;font-size:14px;margin:1.7em 0;border-radius:var(--radius-s);overflow:hidden}
.entry-body th,.entry-body td{border:1px solid var(--c-line);padding:10px 13px;text-align:left;vertical-align:top}
.entry-body th{background:var(--c-primary-soft);color:var(--c-ink);font-weight:600}
.entry-body code{background:#F2EEE6;padding:2px 6px;border-radius:6px;font-size:.92em;color:#8A4A20}
.entry-body hr{border:0;border-top:1px solid var(--c-line);margin:2em 0}

.entry-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
  margin-top:40px;padding-top:26px;border-top:1px solid var(--c-line);
}
.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 13px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:600;
  background:var(--c-surface);border:1px solid var(--c-line);color:var(--c-ink-2);
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.tag:hover{border-color:rgba(18,133,122,.4);color:var(--c-primary);background:var(--c-primary-soft)}
.share-group{display:flex;gap:10px}
.btn-soft{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 16px;border-radius:var(--radius-pill);
  font-size:13px;font-weight:600;color:var(--c-ink-2);
  background:var(--c-surface);border:1px solid var(--c-line);
  transition:transform .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease;
}
.btn-soft:hover{transform:translateY(-1px);border-color:rgba(18,133,122,.4);color:var(--c-primary);box-shadow:var(--shadow-1)}
.btn-soft svg{width:15px;height:15px}

.author-card{
  display:flex;align-items:flex-start;gap:16px;
  margin-top:28px;padding:22px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-m);box-shadow:var(--shadow-1);
}
.author-avatar{
  flex:0 0 auto;width:58px;height:58px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--c-primary-soft);color:var(--c-primary-dark);
  font-size:20px;font-weight:800;
}
.author-name{font-size:16px;font-weight:700;color:var(--c-ink)}
.author-desc{font-size:13.5px;line-height:1.8;color:var(--c-muted);margin-top:6px}
.author-link{display:inline-flex;align-items:center;gap:5px;margin-top:8px;font-size:13px;font-weight:600;color:var(--c-primary)}
.author-link:hover{color:var(--c-primary-dark)}

/* ============ sidebar ============ */
.side-col{display:grid;gap:22px;position:sticky;top:104px;min-width:0}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-m);padding:20px 20px 16px;
  box-shadow:var(--shadow-1);
}
.side-card h2,.side-card h3{
  font-size:15px;font-weight:700;color:var(--c-ink);
  padding-bottom:12px;margin-bottom:6px;
  border-bottom:1px solid var(--c-line);
  display:flex;align-items:center;gap:8px;
}
.side-card h2::before,.side-card h3::before{
  content:"";width:4px;height:14px;border-radius:2px;background:var(--c-primary);
}
.hot-list li{display:flex;gap:11px;padding:12px 0;border-bottom:1px dashed var(--c-line)}
.hot-list li:last-child{border-bottom:0;padding-bottom:4px}
.hot-list .num{
  flex:0 0 auto;width:22px;height:22px;border-radius:7px;
  display:grid;place-items:center;
  font-size:12px;font-weight:700;font-variant-numeric:tabular-nums;
  background:var(--c-primary-soft);color:var(--c-primary-dark);
}
.hot-list li:nth-child(1) .num{background:var(--c-accent-soft);color:#C2551A}
.hot-list a{display:block;font-size:13.5px;line-height:1.6;color:var(--c-ink-2);transition:color .18s ease}
.hot-list li:hover a{color:var(--c-primary)}
.hot-list time{display:block;font-size:11.5px;color:var(--c-muted);margin-top:5px;font-variant-numeric:tabular-nums}
.side-nav li + li{border-top:1px dashed var(--c-line)}
.side-nav a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 0;font-size:13.5px;font-weight:500;color:var(--c-ink-2);
  transition:color .18s ease,padding-left .18s ease;
}
.side-nav a::after{content:"→";color:#B9B2A6;font-size:13px}
.side-nav a:hover{color:var(--c-primary);padding-left:4px}
.cta-card{
  background:linear-gradient(150deg,var(--c-primary) 0%,var(--c-primary-dark) 100%);
  color:#fff;border:0;border-radius:var(--radius-m);
  padding:24px 22px;box-shadow:var(--shadow-2);
}
.cta-card h3{font-size:16px;font-weight:700;color:#fff;border:0;padding:0;margin:0 0 8px}
.cta-card h3::before{display:none}
.cta-card p{font-size:13px;line-height:1.75;color:rgba(255,255,255,.82);margin-bottom:16px}
.cta-card .btn{width:100%;padding:12px 18px;font-size:14px}

/* ============ related ============ */
.related-section{padding:0 0 var(--section-y)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.section-head h2{font-size:clamp(22px,2.4vw,30px);line-height:1.3;font-weight:700;color:var(--c-ink)}
.section-head p{font-size:14px;color:var(--c-muted);margin-top:8px}
.section-more{font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.section-more:hover{color:var(--c-primary-dark)}
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-m);box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(18,133,122,.35)}
.post-thumb{position:relative;background:var(--c-primary-soft)}
.post-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover}
.post-thumb .badge{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.94);color:var(--c-primary-dark)}
.post-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{font-size:16px;line-height:1.5;font-weight:700;color:var(--c-ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-body p{font-size:13.5px;line-height:1.75;color:var(--c-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;padding-top:8px;font-size:12.5px;color:var(--c-muted);font-variant-numeric:tabular-nums}
.post-arrow{color:var(--c-primary);font-weight:700}

/* ============ prev / next ============ */
.pager-section{padding:0 0 var(--section-y)}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.pager a{
  display:block;padding:20px 22px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-m);box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.pager a:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(18,133,122,.35)}
.pager .pager-label{font-size:12px;letter-spacing:.08em;color:var(--c-primary);font-weight:600}
.pager .pager-title{
  display:block;margin-top:8px;font-size:15px;font-weight:600;color:var(--c-ink);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.pager .is-next{text-align:right}

/* ============ back + comments ============ */
.foot-links{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-bottom:34px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary)}
.text-link:hover{color:var(--c-primary-dark)}
.comment-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-m);padding:26px 24px;box-shadow:var(--shadow-1);
}
.comment-card h2{font-size:18px;font-weight:700;color:var(--c-ink);margin-bottom:6px}
.comment-card .comment-hint{font-size:13.5px;color:var(--c-muted)}
.comment-placeholder{
  margin-top:18px;border:2px dashed var(--c-line);border-radius:var(--radius-s);
  padding:34px 20px;text-align:center;color:var(--c-muted);font-size:13.5px;
  background:linear-gradient(180deg,#FFFDF9,rgba(227,243,240,.35));
}
.comment-placeholder strong{display:block;color:var(--c-ink-2);font-size:14px;margin-bottom:4px}

/* ============ empty ============ */
.empty-state{
  border:2px dashed var(--c-line);border-radius:var(--radius-m);
  background:var(--c-surface);padding:56px 24px;text-align:center;
}
.empty-icon{
  width:52px;height:52px;margin:0 auto 16px;border-radius:16px;
  display:grid;place-items:center;background:var(--c-primary-soft);color:var(--c-primary);
  font-size:20px;font-weight:800;
}
.empty-title{font-size:18px;font-weight:700;color:var(--c-ink)}
.empty-desc{font-size:14px;color:var(--c-muted);max-width:34em;margin:10px auto 20px;line-height:1.8}

/* ============ footer ============ */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.72);padding:56px 0 0;margin-top:24px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1.1fr;gap:32px;padding-bottom:40px}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text em{color:rgba(255,255,255,.5)}
.footer-brand .brand-mark{color:#4FC3B4}
.footer-desc{font-size:13.5px;line-height:1.85;margin-top:14px;max-width:26em;color:rgba(255,255,255,.66)}
.social-row{display:flex;gap:8px;margin-top:16px}
.social-row span{
  width:30px;height:30px;border-radius:9px;
  display:grid;place-items:center;font-size:12px;
  background:rgba(255,255,255,.08);color:rgba(255,255,255,.72);
  border:1px solid rgba(255,255,255,.08);
}
.footer-col h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:14px}
.footer-col ul li{font-size:13.5px;margin-bottom:9px;line-height:1.7;color:rgba(255,255,255,.66)}
.footer-col a{color:rgba(255,255,255,.66);transition:color .18s ease}
.footer-col a:hover{color:#fff}
.footer-qr{
  width:92px;height:92px;border-radius:12px;margin-top:14px;
  background:
    repeating-linear-gradient(90deg,rgba(255,255,255,.16) 0 4px,transparent 4px 8px),
    repeating-linear-gradient(0deg,rgba(255,255,255,.16) 0 4px,transparent 4px 8px),
    rgba(255,255,255,.06);
  border:1px dashed rgba(255,255,255,.22);
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:18px 0 22px;display:flex;flex-wrap:wrap;gap:12px 22px;
  align-items:center;justify-content:space-between;
  font-size:12.5px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.62)}
.footer-bottom a:hover{color:#fff}

/* ============ mobile drawer ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,36,34,.5);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:84%;max-width:360px;z-index:95;
  background:var(--c-surface);padding:18px 20px 28px;
  transform:translateX(100%);transition:transform .28s ease;
  display:flex;flex-direction:column;gap:20px;overflow-y:auto;
  box-shadow:var(--shadow-3);
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between}
.drawer-title{font-size:15px;font-weight:700;color:var(--c-ink)}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);
  display:grid;place-items:center;font-size:22px;line-height:1;color:var(--c-ink-2);background:var(--c-surface);
}
.drawer-nav{display:grid;gap:4px}
.drawer-nav a{
  padding:13px 12px;border-radius:var(--radius-s);font-size:15px;font-weight:600;color:var(--c-ink-2);
  background:var(--c-bg);transition:color .18s ease,background .18s ease;
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--c-primary);background:var(--c-primary-soft)}
.drawer-city label{display:block;font-size:13px;font-weight:600;color:var(--c-ink-2);margin-bottom:8px}
.drawer-city select{
  width:100%;height:48px;padding:0 14px;border-radius:var(--radius-s);
  border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-ink-2);
}
.drawer-actions{display:grid;gap:10px;margin-top:auto}

/* ============ responsive ============ */
@media (max-width:1199px){
  .article-wrap{grid-template-columns:minmax(0,1fr) 300px;gap:34px}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:991px){
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .city-select{display:none}
  .header-inner{height:74px;gap:14px}
  .article-wrap{grid-template-columns:minmax(0,1fr);gap:36px}
  .side-col{position:static;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
  .side-col .cta-card{grid-column:1 / -1}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .page-head{padding:32px 0 30px}
}
@media (max-width:767px){
  :root{--section-y:48px;--gutter:16px}
  .header-inner{height:68px}
  .brand-text strong{font-size:17px}
  .brand-text em{font-size:10px;letter-spacing:.1em}
  .header-actions .btn{display:none}
  .article-title{font-size:clamp(23px,6vw,30px);margin:12px 0 16px}
  .meta-row{font-size:13px;gap:8px 12px}
  .cover img{aspect-ratio:4/3;border-radius:var(--radius-m)}
  .entry-body{font-size:15.5px;line-height:1.85}
  .entry-foot{flex-direction:column;align-items:flex-start}
  .post-grid{grid-template-columns:minmax(0,1fr)}
  .pager{grid-template-columns:minmax(0,1fr)}
  .pager .is-next{text-align:left}
  .side-col{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:30px}
  .site-footer{padding-top:44px}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .empty-state{padding:40px 18px}
}

/* roulang page: category1 */
:root{
  --c-primary:#12857A;
  --c-primary-dark:#0B635B;
  --c-primary-soft:#E3F3F0;
  --c-accent:#F2762E;
  --c-accent-soft:#FDEDE2;
  --c-ink:#16211F;
  --c-ink-2:#3C4B48;
  --c-muted:#6C7A77;
  --c-line:#E6E1D8;
  --c-bg:#FBF8F3;
  --c-surface:#FFFFFF;
  --c-dark:#0E2422;
  --radius-s:10px;
  --radius-m:16px;
  --radius-l:24px;
  --radius-pill:999px;
  --shadow-1:0 2px 8px rgba(22,33,31,.06);
  --shadow-2:0 10px 30px rgba(18,133,122,.10);
  --shadow-3:0 18px 48px rgba(14,36,34,.14);
  --container:1200px;
  --gutter:24px;
  --section-y:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.75;color:var(--c-ink);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--gutter)}
section{scroll-margin-top:110px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--c-line);backdrop-filter:saturate(1.3) blur(8px);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.header-inner{height:86px;display:flex;align-items:center;gap:26px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{color:var(--c-primary);display:flex;align-items:center}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-text strong{font-size:19px;font-weight:800;letter-spacing:.02em}
.brand-text em{font-style:normal;font-size:11px;letter-spacing:.14em;color:var(--c-muted);margin-top:4px}
.main-nav{display:flex;align-items:center;gap:4px}
.main-nav a{position:relative;padding:10px 14px;font-size:15px;font-weight:500;color:var(--c-ink-2);border-radius:var(--radius-s);transition:color .18s ease,background .18s ease}
.main-nav a::after{content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;border-radius:2px;background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .22s ease}
.main-nav a:hover{color:var(--c-primary)}
.main-nav a:hover::after,.main-nav a.is-active::after{transform:scaleX(1)}
.main-nav a.is-active{color:var(--c-primary);font-weight:600}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.city-select{position:relative;display:flex;align-items:center}
.city-select select{
  appearance:none;-webkit-appearance:none;padding:9px 34px 9px 15px;font-size:14px;color:var(--c-ink-2);
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-pill);
  cursor:pointer;transition:border-color .18s ease;
}
.city-select select:hover{border-color:rgba(18,133,122,.45)}
.city-select::after{
  content:"";position:absolute;right:15px;top:calc(50% - 4px);width:7px;height:7px;
  border-right:2px solid var(--c-muted);border-bottom:2px solid var(--c-muted);
  transform:rotate(45deg);pointer-events:none;
}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);
  align-items:center;justify-content:center;background:var(--c-surface);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);position:relative;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.nav-drawer{
  position:fixed;inset:0 0 0 auto;width:84%;max-width:360px;background:var(--c-surface);
  z-index:120;padding:22px;transform:translateX(102%);transition:transform .3s ease;
  display:flex;flex-direction:column;gap:18px;overflow-y:auto;box-shadow:var(--shadow-3);
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-mask{position:fixed;inset:0;background:rgba(14,36,34,.5);z-index:110;opacity:0;pointer-events:none;transition:opacity .3s ease}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);align-self:flex-end;font-size:18px;color:var(--c-ink-2);display:flex;align-items:center;justify-content:center}
.drawer-nav{display:flex;flex-direction:column;gap:2px}
.drawer-nav a{padding:12px 6px;font-size:16px;border-bottom:1px solid var(--c-line);color:var(--c-ink-2)}
.drawer-nav a.is-active{color:var(--c-primary);font-weight:600}
.drawer-actions{display:flex;flex-direction:column;gap:10px;margin-top:6px}
body.drawer-open{overflow:hidden}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--radius-pill);font-size:15px;font-weight:600;line-height:1;
  white-space:nowrap;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 6px 16px rgba(242,118,46,.26)}
.btn-primary:hover{background:#DA611B;transform:translateY(-1px);box-shadow:0 12px 26px rgba(242,118,46,.32)}
.btn-primary:active{transform:none;box-shadow:0 4px 10px rgba(242,118,46,.22)}
.btn-outline{background:transparent;color:var(--c-primary);border:1.5px solid var(--c-primary)}
.btn-outline:hover{background:var(--c-primary-soft)}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.5)}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff}
.btn-sm{padding:11px 20px;font-size:14px}
.btn-block{width:100%}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* ---------- tags ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--radius-pill);
  background:var(--c-primary-soft);color:var(--c-primary);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.tag-accent{background:var(--c-accent-soft);color:var(--c-accent)}

/* ---------- C1 category hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;padding:30px 0 44px;
  background:linear-gradient(120deg,#E9F6F3 0%,#F8FBF8 52%,#FFF4EB 100%);
  border-bottom:1px solid var(--c-line);
}
.cat-hero .geo{position:absolute;right:-60px;top:-40px;width:340px;height:340px;pointer-events:none;opacity:.5}
.cat-hero .geo i{position:absolute;display:block;border-radius:50%}
.cat-hero .geo i:nth-child(1){width:210px;height:210px;right:40px;top:40px;border:1.5px dashed rgba(18,133,122,.38)}
.cat-hero .geo i:nth-child(2){width:120px;height:120px;right:120px;top:80px;background:rgba(242,118,46,.12)}
.cat-hero .geo i:nth-child(3){width:16px;height:16px;right:96px;top:212px;background:var(--c-primary);opacity:.4}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);margin-bottom:20px;flex-wrap:wrap}
.crumbs a{color:var(--c-ink-2)}
.crumbs a:hover{color:var(--c-primary)}
.crumbs span[aria-current]{color:var(--c-primary);font-weight:600}
.cat-hero-inner{display:grid;grid-template-columns:1.55fr 1fr;gap:44px;align-items:center;position:relative;z-index:2}
.cat-hero h1{font-size:clamp(28px,3.4vw,42px);line-height:1.2;font-weight:800;letter-spacing:-.01em;margin:14px 0 12px}
.cat-hero-lead{font-size:16px;color:var(--c-ink-2);max-width:46ch;margin-bottom:24px}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.stat-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-l);
  padding:22px 22px 18px;box-shadow:var(--shadow-2);
}
.stat-card h2{font-size:14px;font-weight:700;color:var(--c-ink-2);letter-spacing:.04em;margin-bottom:14px}
.stat-row{display:flex;align-items:baseline;justify-content:space-between;padding:10px 0;border-top:1px dashed var(--c-line);font-variant-numeric:tabular-nums}
.stat-row:first-of-type{border-top:0;padding-top:0}
.stat-row b{font-size:24px;font-weight:800;color:var(--c-primary);letter-spacing:-.01em}
.stat-row span{font-size:13px;color:var(--c-muted)}
.stat-note{font-size:12px;color:var(--c-muted);margin-top:12px;padding-top:10px;border-top:1px solid var(--c-line)}

/* ---------- C2 filter ---------- */
.filter-bar{background:var(--c-surface);border-bottom:1px solid var(--c-line);padding:16px 0}
.filter-inner{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.filter-label{font-size:13px;color:var(--c-muted);margin-right:4px}
.chip{
  display:inline-flex;align-items:center;padding:8px 16px;border-radius:var(--radius-pill);
  border:1px solid var(--c-line);background:var(--c-surface);font-size:14px;color:var(--c-ink-2);
  transition:border-color .18s ease,color .18s ease,background .18s ease,transform .18s ease;
}
.chip:hover{border-color:rgba(18,133,122,.45);color:var(--c-primary);transform:translateY(-1px)}
.chip.is-on{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600}

/* ---------- section base ---------- */
.section{padding:var(--section-y) 0}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;flex-wrap:wrap}
.section-head h2{font-size:clamp(23px,2.5vw,32px);line-height:1.28;font-weight:700;letter-spacing:-.01em}
.section-head p{font-size:14.5px;color:var(--c-muted);margin-top:8px;max-width:60ch}
.eyebrow-sm{font-size:12px;letter-spacing:.14em;font-weight:600;color:var(--c-primary);margin-bottom:8px}

/* ---------- C3 run cards ---------- */
.run-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.run-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-m);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.run-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(18,133,122,.35)}
.run-media{position:relative;aspect-ratio:4/3;background:var(--c-primary-soft);overflow:hidden}
.run-media img{width:100%;height:100%;object-fit:cover}
.run-media .tag{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.94);color:var(--c-primary);box-shadow:var(--shadow-1)}
.run-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.run-body h3{font-size:17.5px;line-height:1.42;font-weight:700}
.run-body p{font-size:14px;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.run-meta{display:flex;flex-wrap:wrap;gap:6px 14px;font-size:12.5px;color:var(--c-muted);font-variant-numeric:tabular-nums}
.run-user{display:flex;align-items:center;gap:8px;margin-top:auto;padding-top:12px;border-top:1px dashed var(--c-line)}
.avatar{
  width:30px;height:30px;border-radius:50%;background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;flex:0 0 auto;
}
.run-user span{font-size:12.5px;color:var(--c-muted)}
.more-wrap{display:flex;justify-content:center;margin-top:36px}

/* ---------- C4 intro ---------- */
.intro-grid{display:grid;grid-template-columns:.85fr 1.5fr;gap:48px;align-items:start}
.intro-grid h2{font-size:clamp(22px,2.3vw,30px);line-height:1.3;font-weight:700}
.intro-grid h2 small{display:block;font-size:13px;font-weight:600;letter-spacing:.14em;color:var(--c-primary);margin-bottom:10px}
.intro-copy p{font-size:15.5px;color:var(--c-ink-2);line-height:1.9;margin-bottom:1.2em}
.intro-copy p:last-child{margin-bottom:0}
.intro-copy strong{color:var(--c-ink);font-weight:700}

/* ---------- C5 scene cloud ---------- */
.scene-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px}
.scene-cloud span{
  display:inline-flex;align-items:center;padding:9px 18px;border-radius:var(--radius-pill);
  background:var(--c-surface);border:1px solid var(--c-line);font-size:14px;color:var(--c-ink-2);
  font-variant-numeric:tabular-nums;
}
.scene-cloud span:nth-child(4n+1){background:var(--c-primary-soft);border-color:transparent;color:var(--c-primary-dark);font-weight:600}
.scene-cloud span:nth-child(4n+3){background:var(--c-accent-soft);border-color:transparent;color:#B6551A;font-weight:600}

/* ---------- C6 post cards ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-m);
  padding:22px;box-shadow:var(--shadow-1);display:flex;flex-direction:column;gap:12px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(18,133,122,.35)}
.post-card h3{font-size:17px;line-height:1.45;font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card h3 a:hover{color:var(--c-primary)}
.post-card p{font-size:14px;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:12px;border-top:1px dashed var(--c-line)}
.post-foot time{font-size:12.5px;color:var(--c-muted);font-variant-numeric:tabular-nums}
.post-foot .arrow{color:var(--c-primary);font-size:15px}
.empty-state{
  border:1.5px dashed rgba(18,133,122,.4);border-radius:var(--radius-m);
  padding:56px 24px;text-align:center;background:var(--c-surface);
}
.empty-state .dot{width:44px;height:44px;border-radius:50%;background:var(--c-primary-soft);margin:0 auto 16px;display:flex;align-items:center;justify-content:center;color:var(--c-primary);font-weight:800}
.empty-state p{font-size:14.5px;color:var(--c-muted);margin-bottom:18px}

/* ---------- C7 steps ---------- */
.step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:step}
.step{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-m);padding:26px 22px 22px;box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(18,133,122,.35)}
.step .num{
  display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;
  border-radius:12px;background:var(--c-primary-soft);color:var(--c-primary);
  font-size:15px;font-weight:800;font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.step h3{font-size:17px;font-weight:700;margin-bottom:8px}
.step p{font-size:14px;color:var(--c-ink-2)}

/* ---------- C8 safety ---------- */
.safety-wrap{display:grid;grid-template-columns:1.15fr 1fr;gap:44px;align-items:center}
.safety-list{display:grid;gap:14px;margin-top:22px}
.safety-list li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:var(--c-ink-2)}
.safety-list .tick{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:var(--c-primary-soft);
  color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;margin-top:3px;
}
.safety-figure{position:relative;border-radius:var(--radius-l);overflow:hidden;aspect-ratio:4/3;background:var(--c-primary-soft);box-shadow:var(--shadow-2)}
.safety-figure img{width:100%;height:100%;object-fit:cover}
.safety-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.safety-badges span{
  display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius-pill);
  background:var(--c-surface);border:1px solid var(--c-line);font-size:13px;color:var(--c-ink-2);
}

/* ---------- C9 related ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.rel-grid a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:16px 18px;border-radius:var(--radius-s);border:1px solid var(--c-line);
  background:var(--c-surface);font-size:15px;font-weight:600;color:var(--c-ink-2);
  transition:border-color .18s ease,color .18s ease,background .18s ease,transform .18s ease;
}
.rel-grid a::after{content:"→";color:var(--c-primary);font-weight:700}
.rel-grid a:hover{border-color:rgba(18,133,122,.45);color:var(--c-primary);background:var(--c-primary-soft);transform:translateY(-1px)}

/* ---------- C10 faq + cta ---------- */
.faq-list{display:grid;gap:12px;max-width:900px;margin:0 auto}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-s);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item.is-open{border-color:rgba(18,133,122,.4);box-shadow:var(--shadow-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;text-align:left;font-size:16px;font-weight:600;color:var(--c-ink);
}
.faq-q:hover{color:var(--c-primary)}
.faq-ico{position:relative;flex:0 0 auto;width:18px;height:18px;transition:transform .28s ease}
.faq-ico::before,.faq-ico::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px}
.faq-ico::before{left:0;top:8px;width:18px;height:2px}
.faq-ico::after{left:8px;top:0;width:2px;height:18px;transition:opacity .2s ease}
.faq-item.is-open .faq-ico{transform:rotate(180deg)}
.faq-item.is-open .faq-ico::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a p{padding:0 20px 18px;font-size:15px;line-height:1.8;color:var(--c-ink-2)}

.cta-band{
  margin-top:44px;border-radius:var(--radius-l);padding:38px 36px;
  background:linear-gradient(120deg,#0E2422 0%,#0B635B 68%,#12857A 100%);
  color:#fff;display:grid;grid-template-columns:1.6fr 1fr;gap:28px;align-items:center;
  box-shadow:var(--shadow-3);
}
.cta-band h2{font-size:clamp(21px,2.2vw,28px);font-weight:800;line-height:1.32;margin-bottom:10px}
.cta-band p{font-size:14.5px;color:rgba(255,255,255,.78);max-width:52ch}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}

/* ---------- footer ---------- */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.72);padding:56px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
.footer-brand .brand-mark{color:#7FD8CD}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text em{color:rgba(255,255,255,.55)}
.footer-desc{font-size:13.5px;line-height:1.8;margin-top:16px;max-width:30ch;color:rgba(255,255,255,.7)}
.social-row{display:flex;gap:10px;margin-top:18px}
.social-row span{
  width:34px;height:34px;border-radius:10px;border:1px solid rgba(255,255,255,.22);
  display:flex;align-items:center;justify-content:center;font-size:13px;color:rgba(255,255,255,.8);
}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-col ul{display:grid;gap:9px}
.footer-col a,.footer-col li{font-size:13.5px;color:rgba(255,255,255,.7);transition:color .18s ease}
.footer-col a:hover{color:#7FD8CD}
.footer-qr{width:88px;height:88px;border-radius:12px;border:1px dashed rgba(255,255,255,.3);margin-top:14px;background:rgba(255,255,255,.05)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:18px 0 22px;display:flex;
  align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:rgba(255,255,255,.55);
}
.footer-bottom ul{display:flex;gap:16px;flex-wrap:wrap}
.footer-bottom a:hover{color:#7FD8CD}

/* ---------- responsive ---------- */
@media (min-width:1200px){.container{max-width:1200px}}
@media (max-width:1199.98px){
  .container{max-width:960px}
  .run-grid,.post-grid{grid-template-columns:repeat(2,1fr)}
  .cat-hero-inner{grid-template-columns:1.3fr 1fr;gap:32px}
  .intro-grid{grid-template-columns:1fr;gap:24px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px}
  .safety-wrap{grid-template-columns:1fr;gap:28px}
}
@media (max-width:991.98px){
  .container{max-width:100%}
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .header-inner{height:74px;gap:14px}
  .city-select{display:none}
  .cat-hero-inner{grid-template-columns:1fr;gap:24px}
  .stat-card{max-width:420px}
  .step-grid{grid-template-columns:1fr 1fr}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .cta-band{grid-template-columns:1fr;padding:30px 24px}
  .cta-band .cta-actions{justify-content:flex-start}
}
@media (max-width:767.98px){
  :root{--gutter:16px;--section-y:48px}
  .hero,.cat-hero{padding-top:22px;padding-bottom:32px}
  .cat-hero h1{font-size:clamp(24px,6.2vw,30px)}
  .cat-hero-lead{font-size:15px}
  .btn{padding:13px 22px;font-size:14.5px}
  .run-grid,.post-grid{grid-template-columns:1fr}
  .step-grid,.rel-grid{grid-template-columns:1fr}
  .section-head{margin-bottom:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;padding-bottom:30px}
  .footer-brand{grid-column:1 / -1}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .faq-q{font-size:15px;padding:16px}
  .faq-a p{font-size:14.5px;padding:0 16px 16px}
  .safety-badges{gap:8px}
  .cta-band{padding:26px 20px;border-radius:var(--radius-m)}
  .stat-row b{font-size:21px}
}
@media (max-width:519.98px){
  .footer-grid{grid-template-columns:1fr}
  .scene-cloud span{font-size:13px;padding:8px 14px}
}