/* roulang page: index */
:root{
  --ink:#14161A;
  --ink-2:#3A3F46;
  --muted:#6B7178;
  --paper:#F7F4EF;
  --card:#FFFFFF;
  --line:#E5DFD6;
  --brand:#E2542C;
  --brand-dark:#B93F1E;
  --accent:#2F6E5A;
  --accent-soft:#E4EFE9;
  --highlight:#F2C230;
  --r-sm:6px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,22,26,.06);
  --sh-2:0 14px 30px -18px rgba(20,22,26,.30);
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
p{margin:0;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.01em;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:24px;height:68px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:34px;height:34px;border-radius:50%;
  border:2px solid var(--brand);
  display:grid;place-items:center;
  position:relative;
}
.logo-mark::after{
  content:"";width:12px;height:12px;border-radius:50%;
  border:2px solid var(--accent);
}
.logo-text{font-size:18px;font-weight:700;letter-spacing:-0.02em;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:12px;}
.main-nav a{
  position:relative;
  padding:8px 12px;
  font-size:15px;
  color:var(--ink-2);
  border-radius:var(--r-sm);
  transition:color .18s ease,background .18s ease;
}
.main-nav a:hover{color:var(--brand);background:var(--paper);}
.main-nav a.is-active{color:var(--ink);font-weight:600;}
.main-nav a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-2px;
  height:2px;background:var(--brand);border-radius:2px;
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.city-select{
  border:1px solid var(--line);background:#fff;border-radius:var(--r-pill);
  padding:8px 14px;font-size:14px;color:var(--ink-2);
  appearance:none;
  background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);
  background-position:calc(100% - 16px) 52%,calc(100% - 11px) 52%;
  background-size:5px 5px,5px 5px;
  background-repeat:no-repeat;
  padding-right:32px;
  transition:border-color .18s ease;
}
.city-select:hover{border-color:var(--accent);}
.nav-toggle{display:none;width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);margin:3px auto;border-radius:2px;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease,color .18s ease;
  border:1px solid transparent;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{background:var(--accent-soft);border-color:var(--accent);color:var(--accent);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}
.text-link{
  color:var(--brand);font-size:14px;font-weight:600;
  border-bottom:1px solid var(--brand);padding-bottom:2px;
  transition:color .18s ease,border-width .18s ease;
}
.text-link:hover{color:var(--brand-dark);border-bottom-width:2px;}

/* 板块与标题 */
section{padding:88px 0;}
.bg-white{background:#fff;}
.bg-paper{background:var(--paper);}
.bg-ink{background:var(--ink);color:#EDEAE4;}
.section-head{display:flex;align-items:flex-end;gap:24px;margin-bottom:36px;}
.section-head-left{max-width:620px;}
.section-head h2{font-size:clamp(22px,2.4vw,32px);line-height:1.3;}
.section-sub{margin-top:10px;color:var(--muted);font-size:15px;line-height:1.7;}
.rule{flex:1;height:1px;background:var(--line);margin-bottom:10px;}
.bg-ink .rule{background:rgba(255,255,255,.16);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--accent);background:var(--accent-soft);
  padding:6px 14px;border-radius:var(--r-pill);
}

/* Hero */
.hero{padding:72px 0 80px;background:linear-gradient(180deg,#fff 0%,var(--paper) 100%);}
.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;}
.hero h1{
  margin-top:20px;
  font-size:clamp(30px,4vw,50px);
  line-height:1.22;
  letter-spacing:-0.01em;
}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.8;color:var(--ink-2);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-media-wrap{display:flex;flex-direction:column;gap:20px;}
.hero-media{
  margin:0;border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-2);border:1px solid var(--line);
  aspect-ratio:16/10;background:#ddd;
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:12px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px 16px;box-shadow:var(--sh-1);
}
.hero-stats .stat-value{font-size:22px;font-weight:700;color:var(--ink);letter-spacing:-0.02em;}
.hero-stats .stat-value .unit{font-size:13px;font-weight:600;color:var(--muted);margin-left:2px;}
.hero-stats .stat-label{font-size:12px;color:var(--muted);margin-top:2px;}

/* 快筛条 */
.filter-bar{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);
  display:grid;grid-template-columns:repeat(5,1fr) auto;gap:16px;align-items:end;
}
.field{display:flex;flex-direction:column;gap:6px;}
.field label{font-size:13px;font-weight:600;color:var(--ink-2);}
.field select,.field input,.field textarea{
  width:100%;padding:11px 14px;border:1px solid var(--line);
  border-radius:var(--r-sm);background:#fff;font-size:14px;color:var(--ink);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field select:focus,.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(47,110,90,.14);
}
.field textarea{resize:vertical;min-height:96px;}

/* 卡片通用 */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--sh-1);
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.card:hover{border-color:rgba(226,84,44,.35);box-shadow:var(--sh-2);transform:translateY(-2px);}
.badge{
  display:inline-flex;align-items:center;
  background:var(--accent-soft);color:var(--accent);
  font-size:12px;font-weight:600;padding:4px 10px;border-radius:var(--r-pill);
}
.badge-warn{background:#FFF8E1;color:#8A6100;border:1px solid var(--highlight);}
.badge-line{background:#fff;color:var(--ink-2);border:1px solid var(--line);}

/* 约跑场次 */
.run-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.run-card{display:flex;gap:20px;align-items:flex-start;}
.run-thumb{
  width:150px;flex-shrink:0;aspect-ratio:16/10;border-radius:var(--r-sm);
  overflow:hidden;background:#e8e4dd;
}
.run-thumb img{width:100%;height:100%;object-fit:cover;}
.run-body{flex:1;min-width:0;}
.run-title{font-size:17px;font-weight:700;line-height:1.45;}
.run-meta{margin-top:8px;font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;gap:6px 14px;}
.run-tags{margin-top:10px;display:flex;flex-wrap:wrap;gap:8px;}
.progress-wrap{margin-top:14px;}
.progress-line{height:6px;border-radius:var(--r-pill);background:#EFEAE2;overflow:hidden;}
.progress-line span{display:block;height:100%;background:var(--brand);border-radius:var(--r-pill);}
.progress-text{margin-top:6px;font-size:12px;color:var(--muted);display:flex;justify-content:space-between;}
.run-foot{margin-top:14px;display:flex;justify-content:space-between;align-items:center;gap:12px;}

/* 热度榜 */
.rank-layout{display:grid;grid-template-columns:1.25fr 1fr;gap:32px;align-items:start;}
.rank-list{display:flex;flex-direction:column;gap:10px;}
.rank-item{
  display:grid;grid-template-columns:38px 1fr auto;gap:14px;align-items:center;
  padding:14px 16px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.rank-item:hover{border-color:rgba(226,84,44,.35);box-shadow:var(--sh-2);transform:translateX(2px);}
.rank-no{font-size:16px;font-weight:700;color:var(--brand);}
.rank-name{font-size:15px;font-weight:600;}
.rank-city{font-size:12px;color:var(--muted);margin-top:2px;}
.rank-bar{width:110px;height:6px;border-radius:var(--r-pill);background:#EFEAE2;overflow:hidden;}
.rank-bar span{display:block;height:100%;background:var(--accent);border-radius:var(--r-pill);}
.rank-photo{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-2);position:relative;aspect-ratio:4/5;background:#ddd;
}
.rank-photo img{width:100%;height:100%;object-fit:cover;}
.rank-photo figcaption{
  position:absolute;left:16px;right:16px;bottom:16px;
  background:rgba(20,22,26,.72);color:#fff;padding:12px 16px;
  border-radius:var(--r-md);font-size:14px;line-height:1.6;
  backdrop-filter:blur(4px);
}

/* 搭子匹配 */
.partner-layout{display:grid;grid-template-columns:5fr 7fr;gap:36px;align-items:start;}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.tag{
  display:inline-block;padding:7px 15px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);font-size:13px;color:var(--ink-2);
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.tag:hover{border-color:var(--brand);color:var(--brand);background:#FDF2EE;}
.partner-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.partner-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px 18px;text-align:center;box-shadow:var(--sh-1);
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.partner-card:hover{border-color:rgba(226,84,44,.35);box-shadow:var(--sh-2);transform:translateY(-3px);}
.avatar{
  width:56px;height:56px;border-radius:50%;overflow:hidden;margin:0 auto 12px;
  border:2px solid var(--accent-soft);
}
.avatar img{width:100%;height:100%;object-fit:cover;}
.partner-name{font-size:15px;font-weight:700;}
.partner-line{font-size:13px;color:var(--muted);margin-top:6px;line-height:1.65;}
.partner-pace{margin-top:12px;font-size:13px;color:var(--accent);font-weight:600;}

/* 专题横条 */
.feature-strip{
  display:grid;grid-template-columns:1fr 1fr;
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-2);
}
.feature-copy{background:var(--ink);color:#EDEAE4;padding:52px 44px;display:flex;flex-direction:column;justify-content:center;gap:18px;}
.feature-copy h3{font-size:clamp(20px,2.2vw,28px);line-height:1.35;}
.feature-copy p{color:rgba(237,234,228,.72);font-size:15px;line-height:1.8;}
.feature-media{aspect-ratio:16/11;background:#ddd;}
.feature-media img{width:100%;height:100%;object-fit:cover;}

/* 路线库 */
.route-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.route-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.route-card:hover{border-color:rgba(226,84,44,.35);box-shadow:var(--sh-2);transform:translateY(-3px);}
.route-media{aspect-ratio:16/9;background:#e8e4dd;overflow:hidden;}
.route-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.route-card:hover .route-media img{transform:scale(1.04);}
.route-body{padding:18px 20px 22px;}
.route-name{font-size:16px;font-weight:700;}
.route-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;}

/* 配速阶梯 */
.pace-ladder{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;align-items:end;}
.pace-step{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px 16px;display:flex;flex-direction:column;gap:10px;
  box-shadow:var(--sh-1);min-height:calc(180px + var(--h,0px));
  transition:border-color .18s ease,box-shadow .18s ease;
}
.pace-step:hover{border-color:rgba(226,84,44,.35);box-shadow:var(--sh-2);}
.pace-bar{height:8px;border-radius:var(--r-pill);background:var(--brand);opacity:.9;}
.pace-step:nth-child(2) .pace-bar{background:#E8744F;}
.pace-step:nth-child(3) .pace-bar{background:#EE9268;}
.pace-step:nth-child(4) .pace-bar{background:var(--accent);}
.pace-step:nth-child(5) .pace-bar{background:#4C8C76;}
.pace-title{font-size:19px;font-weight:700;letter-spacing:-0.02em;}
.pace-desc{font-size:13px;color:var(--muted);line-height:1.7;}

/* 领跑员 */
.coach-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.coach-card{display:flex;gap:16px;align-items:flex-start;}
.coach-info{flex:1;min-width:0;}
.coach-name{font-size:15px;font-weight:700;display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.coach-meta{font-size:13px;color:var(--muted);margin-top:6px;line-height:1.6;}
.coach-btn{
  margin-top:12px;display:inline-flex;font-size:13px;font-weight:600;
  color:var(--brand);border-bottom:1px solid var(--brand);padding-bottom:1px;
}
.coach-btn:hover{color:var(--brand-dark);}

/* 赛事日历 */
.event-list{display:flex;flex-direction:column;gap:14px;}
.event-item{
  display:grid;grid-template-columns:88px 1fr auto;gap:22px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px 22px;box-shadow:var(--sh-1);
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.event-item:hover{border-color:rgba(226,84,44,.35);box-shadow:var(--sh-2);transform:translateX(2px);}
.event-date{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-sm);
  text-align:center;padding:10px 6px;
}
.event-date .d{font-size:24px;font-weight:700;line-height:1.1;letter-spacing:-0.02em;}
.event-date .m{font-size:12px;color:var(--muted);margin-top:2px;}
.event-name{font-size:16px;font-weight:700;}
.event-meta{font-size:13px;color:var(--muted);margin-top:5px;}

/* 装备测评 */
.gear-list{display:flex;flex-direction:column;gap:20px;}
.gear-card{display:grid;grid-template-columns:220px 1fr;gap:24px;align-items:center;}
.gear-media{aspect-ratio:16/10;border-radius:var(--r-sm);overflow:hidden;background:#e8e4dd;}
.gear-media img{width:100%;height:100%;object-fit:cover;}
.gear-title{font-size:16px;font-weight:700;}
.gear-desc{font-size:14px;color:var(--muted);margin-top:8px;line-height:1.75;}
.gear-foot{margin-top:12px;display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.stars{color:var(--highlight);font-size:14px;letter-spacing:2px;}
.gear-price{font-size:14px;font-weight:600;color:var(--ink-2);}

/* 折叠 */
.accordion{display:flex;flex-direction:column;gap:12px;}
details.acc{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:0;overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease;
}
details.acc[open]{border-color:rgba(226,84,44,.35);box-shadow:var(--sh-1);}
details.acc summary{
  list-style:none;cursor:pointer;padding:18px 22px;
  font-size:15px;font-weight:600;display:flex;align-items:center;gap:14px;
}
details.acc summary::-webkit-details-marker{display:none;}
details.acc summary::after{
  content:"+";margin-left:auto;font-size:20px;color:var(--muted);font-weight:400;line-height:1;
}
details.acc[open] summary::after{content:"–";color:var(--brand);}
.acc-icon{
  width:26px;height:26px;border-radius:50%;border:1.5px solid var(--accent);
  display:grid;place-items:center;flex-shrink:0;
}
.acc-icon::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent);}
.acc-body{padding:0 22px 20px 62px;font-size:14px;color:var(--ink-2);line-height:1.8;}

/* CMS 动态 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.news-card:hover{border-color:rgba(226,84,44,.35);box-shadow:var(--sh-2);transform:translateY(-3px);}
.news-thumb{aspect-ratio:16/9;background:#e8e4dd;overflow:hidden;}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-title{font-size:16px;font-weight:700;line-height:1.5;}
.news-summary{
  font-size:13px;color:var(--muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;font-size:12px;color:var(--muted);gap:10px;
}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-md);
}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:18px;}
.news-more{margin-top:32px;display:flex;justify-content:center;}

/* 跑者故事 */
.story-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.story-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:30px 28px;box-shadow:var(--sh-1);}
.story-card::before{
  content:"“";display:block;font-size:52px;line-height:1;color:var(--brand);opacity:.5;
  font-family:Georgia,serif;margin-bottom:6px;
}
.story-text{font-size:15px;line-height:1.85;color:var(--ink-2);}
.story-who{margin-top:20px;display:flex;align-items:center;gap:12px;}

/* 步骤条 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step;}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px 20px;position:relative;box-shadow:var(--sh-1);
}
.step-no{
  width:32px;height:32px;border-radius:50%;background:var(--accent-soft);color:var(--accent);
  display:grid;place-items:center;font-weight:700;font-size:14px;margin-bottom:14px;
}
.step-title{font-size:15px;font-weight:700;}
.step-desc{font-size:13px;color:var(--muted);margin-top:8px;line-height:1.7;}

/* 数据通栏 */
.stats-band{background:var(--ink);color:#EDEAE4;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center;}
.stats-grid .v{font-size:clamp(28px,3.4vw,42px);font-weight:700;letter-spacing:-0.02em;color:#fff;}
.stats-grid .v .u{font-size:15px;font-weight:600;color:rgba(237,234,228,.6);margin-left:4px;}
.stats-grid .l{margin-top:8px;font-size:14px;color:rgba(237,234,228,.68);}

/* FAQ 两栏 */
.faq-layout{display:grid;grid-template-columns:1fr 2fr;gap:48px;align-items:start;}
.faq-layout .faq-lead p{margin-top:16px;color:var(--muted);font-size:15px;line-height:1.8;}

/* 加入转化 */
.join-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:start;}
.join-form{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;box-shadow:var(--sh-1);}
.join-form .field{margin-bottom:18px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.check-list{display:flex;flex-direction:column;gap:16px;}
.check-item{display:flex;gap:14px;align-items:flex-start;}
.check-mark{
  width:22px;height:22px;border-radius:50%;background:var(--accent-soft);
  display:grid;place-items:center;flex-shrink:0;margin-top:2px;
}
.check-mark::before{content:"";width:7px;height:11px;border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(40deg) translate(-1px,-1px);}
.check-item p{font-size:14px;line-height:1.75;color:var(--ink-2);}
.check-item strong{display:block;font-size:15px;color:var(--ink);margin-bottom:2px;}

/* 城市标签 */
.city-cloud{display:flex;flex-wrap:wrap;gap:10px;}

/* 页脚 */
.site-footer{background:var(--ink);color:rgba(237,234,228,.72);padding:64px 0 28px;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.12);}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{margin-top:16px;line-height:1.8;max-width:320px;color:rgba(237,234,228,.62);}
.footer-mail{display:inline-block;margin-top:14px;color:#fff;font-weight:600;border-bottom:1px solid rgba(255,255,255,.3);}
.footer-mail:hover{color:var(--brand);border-color:var(--brand);}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:rgba(237,234,228,.68);transition:color .18s ease;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{padding-top:22px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13px;color:rgba(237,234,228,.48);}

/* 响应式 */
@media (max-width:1200px){
  .container{padding:0 20px;}
  .hero-grid{gap:40px;}
}
@media (max-width:992px){
  section{padding:72px 0;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-media-wrap{order:2;}
  .run-grid{grid-template-columns:1fr;}
  .rank-layout{grid-template-columns:1fr;}
  .rank-photo{aspect-ratio:16/10;}
  .partner-layout{grid-template-columns:1fr;}
  .partner-cards{grid-template-columns:repeat(3,1fr);}
  .route-grid{grid-template-columns:repeat(2,1fr);}
  .pace-ladder{grid-template-columns:repeat(2,1fr);}
  .pace-step{min-height:auto;}
  .coach-row{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .story-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .join-layout{grid-template-columns:1fr;}
  .feature-strip{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .filter-bar{grid-template-columns:repeat(2,1fr);}
  .filter-bar .btn{grid-column:1/-1;width:100%;}
}
@media (max-width:768px){
  .main-nav{
    position:fixed;top:68px;left:0;right:0;bottom:0;
    background:#fff;flex-direction:column;align-items:stretch;
    padding:16px 20px;gap:4px;margin:0;
    transform:translateY(-8px);opacity:0;pointer-events:none;
    transition:opacity .2s ease,transform .2s ease;
    border-top:1px solid var(--line);overflow-y:auto;
  }
  body.nav-open .main-nav{transform:translateY(0);opacity:1;pointer-events:auto;}
  .main-nav a{padding:14px 12px;font-size:16px;border-bottom:1px solid var(--line);}
  .main-nav a.is-active::after{display:none;}
  .main-nav a.is-active{color:var(--brand);}
  .nav-toggle{display:block;order:3;}
  .city-select{display:none;}
  .header-actions .btn-primary{display:none;}
  section{padding:56px 0;}
  .hero{padding:48px 0 56px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .rule{display:none;}
  .hero-stats{grid-template-columns:repeat(2,1fr);}
  .run-card{flex-direction:column;}
  .run-thumb{width:100%;aspect-ratio:16/9;}
  .gear-card{grid-template-columns:1fr;gap:16px;}
  .event-item{grid-template-columns:64px 1fr;gap:16px;}
  .event-item .badge{grid-column:1/-1;justify-self:start;margin-left:80px;}
  .partner-cards{grid-template-columns:1fr;}
  .coach-row{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .form-row{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .acc-body{padding-left:22px;}
  .pace-ladder{grid-template-columns:1fr;}
  .rank-item{grid-template-columns:32px 1fr;}
  .rank-bar{grid-column:1/-1;width:100%;}
}
@media (max-width:480px){
  .container{padding:0 16px;}
  .hero h1{font-size:28px;}
  .hero-actions .btn{width:100%;}
  .hero-stats{grid-template-columns:1fr 1fr;padding:14px 12px;}
  .hero-stats .stat-value{font-size:19px;}
  .btn{width:100%;}
  .run-foot{flex-direction:column;align-items:flex-start;}
  .route-grid{grid-template-columns:1fr;}
  .join-form{padding:22px;}
  .stats-grid{grid-template-columns:1fr 1fr;gap:24px;}
}

/* roulang page: article */
:root{
  --ink:#14161A;
  --ink-2:#3A3F46;
  --muted:#6B7178;
  --paper:#F7F4EF;
  --card:#FFFFFF;
  --line:#E5DFD6;
  --brand:#E2542C;
  --brand-dark:#B93F1E;
  --accent:#2F6E5A;
  --accent-soft:#E4EFE9;
  --highlight:#F2C230;
  --r-sm:6px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,22,26,.06);
  --sh-2:0 14px 30px -18px rgba(20,22,26,.30);
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
h1,h2,h3,h4,p,figure,ul,ol{margin:0;}
ul,ol{padding:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}
/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:24px;height:68px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:34px;height:34px;border-radius:50%;
  border:2px solid var(--brand);
  display:grid;place-items:center;
  position:relative;
  flex-shrink:0;
}
.logo-mark::after{
  content:"";width:12px;height:12px;border-radius:50%;
  border:2px solid var(--accent);
}
.logo-text{font-size:18px;font-weight:700;letter-spacing:-0.02em;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:12px;}
.main-nav a{
  position:relative;
  padding:8px 12px;
  font-size:15px;
  color:var(--ink-2);
  border-radius:var(--r-sm);
  transition:color .18s ease,background .18s ease;
}
.main-nav a:hover{color:var(--brand);background:var(--paper);}
.main-nav a.is-active{color:var(--ink);font-weight:600;}
.main-nav a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-2px;
  height:2px;background:var(--brand);border-radius:2px;
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.city-select{
  border:1px solid var(--line);background:#fff;border-radius:var(--r-pill);
  padding:8px 14px;font-size:14px;color:var(--ink-2);
  appearance:none;
  background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);
  background-position:calc(100% - 16px) 52%,calc(100% - 11px) 52%;
  background-size:5px 5px,5px 5px;
  background-repeat:no-repeat;
  padding-right:32px;
  transition:border-color .18s ease;
}
.city-select:hover{border-color:var(--accent);}
.nav-toggle{display:none;width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);margin:3px auto;border-radius:2px;}
/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease,color .18s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{background:var(--accent-soft);border-color:var(--accent);color:var(--accent);}
.btn-light{background:#fff;color:var(--ink);}
.btn-light:hover{background:var(--accent-soft);color:var(--accent);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}
.text-link{
  color:var(--brand);font-size:14px;font-weight:600;
  border-bottom:1px solid var(--brand);padding-bottom:2px;
  transition:color .18s ease,border-bottom-width .18s ease;
}
.text-link:hover{color:var(--brand-dark);border-bottom-width:2px;}
/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--accent-soft);color:var(--accent);
  border-radius:var(--r-pill);padding:5px 12px;
  font-size:12px;font-weight:600;line-height:1.5;
}
.badge-line{background:#fff;color:var(--ink-2);border:1px solid var(--line);}
.badge-warn{background:#FFF8E1;color:#8A6A05;border:1px solid var(--highlight);}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;}
/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--muted);
  padding:28px 0 0;
}
.breadcrumb a{color:var(--muted);transition:color .18s ease;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--ink-2);}
/* ============ 文章头部 ============ */
.article-head{padding:22px 0 0;}
.article-head .head-line{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}
.article-title{
  margin-top:16px;
  font-size:clamp(28px,3.6vw,44px);
  line-height:1.28;
  letter-spacing:-0.01em;
  font-weight:700;
  max-width:20em;
}
.article-lead{
  margin-top:20px;
  max-width:72ch;
  font-size:17px;
  line-height:1.85;
  color:var(--ink-2);
}
.article-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:16px;
  margin-top:28px;font-size:14px;color:var(--muted);
}
.author-line{display:flex;align-items:center;gap:12px;}
.avatar{
  width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--accent-soft);color:var(--accent);
  font-weight:700;font-size:15px;flex-shrink:0;
  border:1px solid rgba(47,110,90,.18);
}
.avatar-lg{width:64px;height:64px;font-size:22px;}
.author-name{font-size:15px;font-weight:600;color:var(--ink);line-height:1.4;}
.author-sub{font-size:13px;color:var(--muted);line-height:1.5;}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--line);}
.share-group{margin-left:auto;display:flex;align-items:center;gap:8px;}
.share-label{font-size:13px;color:var(--muted);}
.share-btn{
  width:36px;height:36px;border-radius:50%;
  border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;
  font-size:12px;font-weight:600;color:var(--ink-2);
  transition:border-color .18s ease,color .18s ease,background .18s ease,transform .18s ease;
}
.share-btn:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.cover-figure{
  margin:34px 0 0;
  border-radius:16px;
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  aspect-ratio:21/9;
  background:#E9E4DB;
}
.cover-figure img{width:100%;height:100%;object-fit:cover;}
/* ============ 正文布局 ============ */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 280px;
  gap:56px;
  align-items:start;
  padding:52px 0 0;
}
.article-body{
  max-width:72ch;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-2);
}
.article-body p{margin:0 0 18px;}
.article-body h2{
  position:relative;
  margin:40px 0 16px;
  padding-left:14px;
  font-size:clamp(20px,2.1vw,26px);
  line-height:1.4;
  font-weight:700;
  color:var(--ink);
  scroll-margin-top:96px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;
  width:4px;border-radius:2px;background:var(--brand);
}
.article-body h3{
  margin:28px 0 12px;
  font-size:18px;
  font-weight:600;
  color:var(--ink);
}
.article-body ul{list-style:none;margin:0 0 18px;padding:0;}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:10px;}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:7px;height:7px;border-radius:2px;background:var(--brand);
}
.article-body ol{margin:0 0 18px;padding-left:22px;}
.article-body ol li{margin-bottom:10px;}
.article-body blockquote{
  margin:24px 0;
  padding:18px 22px;
  background:var(--accent-soft);
  border-left:3px solid var(--accent);
  border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body figure{margin:26px 0;}
.article-body figure img{width:100%;border-radius:var(--r-md);}
.article-body figcaption{
  margin-top:8px;font-size:13px;line-height:1.6;
  color:var(--muted);text-align:center;
}
.article-body img{border-radius:var(--r-md);}
.article-body a{
  color:var(--brand);
  border-bottom:1px solid rgba(226,84,44,.45);
  transition:border-bottom-color .18s ease,color .18s ease;
}
.article-body a:hover{color:var(--brand-dark);border-bottom-color:var(--brand-dark);}
.article-body strong{color:var(--ink);font-weight:600;}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;}
.article-body th,.article-body td{
  border:1px solid var(--line);padding:10px 14px;text-align:left;
}
.article-body th{background:#FBF8F3;color:var(--ink);font-weight:600;}
/* 目录 */
.toc{
  position:sticky;top:96px;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);padding:20px;
  box-shadow:var(--sh-1);
}
.toc h3{
  font-size:14px;font-weight:700;color:var(--ink);
  letter-spacing:.02em;margin-bottom:14px;
  padding-bottom:12px;border-bottom:1px solid var(--line);
}
.toc-list{list-style:none;margin:0;padding:0;}
.toc-list li{margin-bottom:6px;font-size:14px;line-height:1.5;}
.toc-list a{
  display:block;padding:5px 0 5px 12px;
  color:var(--ink-2);
  border-left:2px solid var(--line);
  transition:color .18s ease,border-color .18s ease;
}
.toc-list a:hover{color:var(--brand);border-left-color:var(--brand);}
.toc-note{margin-top:16px;font-size:13px;color:var(--muted);line-height:1.7;}
/* 空态 */
.empty-state{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:44px 32px;text-align:center;box-shadow:var(--sh-1);
}
.empty-state h2{font-size:22px;color:var(--ink);margin-bottom:12px;}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:24px;}
/* ============ 作者名片 ============ */
.author-card{
  display:flex;gap:22px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);padding:26px;
  box-shadow:var(--sh-1);margin-top:52px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.author-card:hover{border-color:rgba(226,84,44,.35);box-shadow:var(--sh-2);}
.author-card h3{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:8px;}
.author-card p{font-size:14px;line-height:1.8;color:var(--ink-2);margin-bottom:12px;}
.author-card .text-link{font-size:14px;}
/* ============ 相关推荐 ============ */
.related{padding:72px 0 0;}
.section-head{display:flex;align-items:flex-end;gap:24px;margin-bottom:28px;}
.section-head h2{font-size:clamp(22px,2.4vw,30px);line-height:1.3;font-weight:700;}
.section-head .head-rule{flex:1;height:1px;background:var(--line);margin-bottom:8px;}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.related-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--sh-1);
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.related-card:hover{border-color:rgba(226,84,44,.35);box-shadow:var(--sh-2);transform:translateY(-2px);}
.related-thumb{aspect-ratio:16/9;overflow:hidden;background:#E9E4DB;}
.related-thumb img{width:100%;height:100%;object-fit:cover;}
.related-text{padding:18px 20px 22px;}
.related-text h3{font-size:16px;line-height:1.55;font-weight:600;color:var(--ink);margin-bottom:10px;}
.related-text span{font-size:13px;color:var(--muted);}
/* ============ 上一篇 / 下一篇 ============ */
.post-nav{
  display:grid;grid-template-columns:1fr 1fr auto;gap:16px;
  align-items:stretch;margin-top:56px;
  padding-top:32px;border-top:1px solid var(--line);
}
.post-nav-card{
  display:flex;flex-direction:column;gap:6px;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);padding:16px 20px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.post-nav-card:hover{border-color:rgba(226,84,44,.35);box-shadow:var(--sh-2);}
.post-nav-card .k{font-size:12px;color:var(--muted);font-weight:600;letter-spacing:.04em;}
.post-nav-card .v{font-size:15px;color:var(--ink);font-weight:600;line-height:1.5;}
.post-nav .btn{white-space:nowrap;align-self:center;}
/* ============ 文末 CTA ============ */
.cta-band{
  margin:64px 0 88px;
  background:radial-gradient(120% 140% at 88% 0%,#2B2F36 0%,var(--ink) 58%);
  border-radius:var(--r-lg);
  padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;
  gap:28px;flex-wrap:wrap;
  color:#fff;
  box-shadow:var(--sh-2);
}
.cta-band h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;line-height:1.4;margin-bottom:10px;}
.cta-band p{color:#B9BFC7;font-size:15px;line-height:1.8;max-width:46em;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#C9CDD2;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;}
.site-footer .logo-text{color:#fff;}
.footer-brand p{
  margin:16px 0 18px;
  font-size:14px;line-height:1.85;color:#9BA1A8;max-width:330px;
}
.footer-mail{font-size:14px;color:var(--brand);border-bottom:1px solid rgba(226,84,44,.5);padding-bottom:2px;}
.footer-mail:hover{color:#fff;border-bottom-color:#fff;}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:#9BA1A8;transition:color .18s ease;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:44px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.10);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#8A9098;
}
/* ============ 响应式 ============ */
@media (max-width:1200px){
  .article-layout{gap:40px;grid-template-columns:minmax(0,1fr) 250px;}
}
@media (max-width:992px){
  .main-nav{margin-left:0;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;padding-top:36px;}
  .toc{order:-1;position:static;margin-bottom:32px;}
  .post-nav{grid-template-columns:1fr;}
  .post-nav .btn{justify-self:start;}
  .cta-band{padding:34px 30px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .main-nav{
    position:fixed;top:68px;left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;border-bottom:1px solid var(--line);
    padding:12px 16px 18px;box-shadow:var(--sh-2);margin:0;
  }
  body.nav-open .main-nav{display:flex;}
  .main-nav a{padding:12px;font-size:15px;}
  .main-nav a.is-active::after{display:none;}
  .nav-toggle{display:block;}
  .city-select{display:none;}
  .header-actions{gap:8px;}
  .share-group{margin-left:0;width:100%;}
  .article-lead{font-size:16px;}
  .cover-figure{aspect-ratio:16/9;border-radius:12px;}
  .related{padding-top:56px;}
  .related-grid{grid-template-columns:1fr;}
  .author-card{flex-direction:column;gap:16px;padding:22px;}
  .cta-band{margin-bottom:56px;padding:28px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:480px){
  body{font-size:15px;}
  .article-title{font-size:26px;}
  .article-body{font-size:15px;}
  .article-body h2{font-size:20px;}
  .btn{padding:12px 20px;font-size:14px;}
  .btn-sm{padding:8px 14px;}
  .article-head .head-line{font-size:12px;}
}

/* roulang page: category1 */
:root{
  --ink:#14161A;
  --ink-2:#3A3F46;
  --muted:#6B7178;
  --paper:#F7F4EF;
  --card:#FFFFFF;
  --line:#E5DFD6;
  --brand:#E2542C;
  --brand-dark:#B93F1E;
  --accent:#2F6E5A;
  --accent-soft:#E4EFE9;
  --highlight:#F2C230;
  --r-sm:6px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,22,26,.06);
  --sh-2:0 14px 30px -18px rgba(20,22,26,.30);
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:24px;height:68px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:34px;height:34px;border-radius:50%;
  border:2px solid var(--brand);
  display:grid;place-items:center;
  position:relative;
}
.logo-mark::after{
  content:"";width:12px;height:12px;border-radius:50%;
  border:2px solid var(--accent);
}
.logo-text{font-size:18px;font-weight:700;letter-spacing:-0.02em;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:12px;}
.main-nav a{
  position:relative;
  padding:8px 12px;
  font-size:15px;
  color:var(--ink-2);
  border-radius:var(--r-sm);
  transition:color .18s ease,background .18s ease;
}
.main-nav a:hover{color:var(--brand);background:var(--paper);}
.main-nav a.is-active{color:var(--ink);font-weight:600;}
.main-nav a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-2px;
  height:2px;background:var(--brand);border-radius:2px;
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.city-select{
  border:1px solid var(--line);background:#fff;border-radius:var(--r-pill);
  padding:8px 32px 8px 14px;font-size:14px;color:var(--ink-2);
  appearance:none;
  background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);
  background-position:calc(100% - 16px) 52%,calc(100% - 11px) 52%;
  background-size:5px 5px,5px 5px;
  background-repeat:no-repeat;
  transition:border-color .18s ease;
}
.city-select:hover{border-color:var(--accent);}
.nav-toggle{display:none;width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);margin:3px auto;border-radius:2px;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease,color .18s ease;
  border:1px solid transparent;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--sh-2);color:#fff;}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{background:var(--accent-soft);border-color:var(--accent);color:var(--accent);}
.btn-sm{padding:9px 18px;font-size:14px;}
.text-link{
  color:var(--brand);font-size:14px;font-weight:600;
  border-bottom:1px solid var(--brand);padding-bottom:2px;
  transition:color .18s ease,border-color .18s ease;
}
.text-link:hover{color:var(--brand-dark);border-color:var(--brand-dark);}

/* 板块通用 */
.section{padding:88px 0;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;gap:24px;margin-bottom:36px;}
.section-head-left{max-width:660px;}
.section-head h2{font-size:clamp(22px,2.4vw,32px);line-height:1.3;letter-spacing:-0.01em;}
.section-sub{margin-top:10px;color:var(--muted);font-size:15px;line-height:1.7;}
.section-head-right{margin-left:auto;flex-shrink:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--accent);background:var(--accent-soft);
  padding:6px 14px;border-radius:var(--r-pill);
}
.badge{
  display:inline-flex;align-items:center;
  background:var(--accent-soft);color:var(--accent);
  border-radius:var(--r-pill);padding:4px 12px;
  font-size:12px;font-weight:600;line-height:1.6;
}
.badge-warn{background:#FFF6DB;color:#8A6A05;border:1px solid rgba(242,194,48,.7);}
.badge-mute{background:#F1EEE8;color:var(--muted);}

/* 分类头部 */
.cat-hero{
  background:#fff;
  border-bottom:1px solid var(--line);
  padding:44px 0 52px;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px;flex-wrap:wrap;}
.breadcrumb a{color:var(--muted);transition:color .18s ease;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#C7C1B7;}
.cat-hero-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:44px;align-items:center;}
.cat-hero h1{
  font-size:clamp(26px,3.2vw,40px);
  line-height:1.25;
  letter-spacing:-0.01em;
  margin-bottom:16px;
}
.cat-hero h1 em{font-style:normal;color:var(--brand);}
.cat-hero-sub{color:var(--ink-2);font-size:15px;line-height:1.8;max-width:640px;}
.cat-hero-sub + .cat-hero-sub{margin-top:8px;}
.cat-stats{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:20px;
  display:grid;
  gap:14px;
}
.cat-stat{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding-bottom:12px;border-bottom:1px dashed var(--line);}
.cat-stat:last-child{border-bottom:none;padding-bottom:0;}
.cat-stat .k{font-size:13px;color:var(--muted);}
.cat-stat .v{font-size:20px;font-weight:700;letter-spacing:-0.02em;}
.cat-stat .v .unit{font-size:12px;font-weight:600;color:var(--muted);margin-left:3px;}

/* 分类入口 */
.chip-bar{padding:26px 0;background:var(--paper);border-bottom:1px solid var(--line);}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
.chip-row .chip-label{font-size:13px;color:var(--muted);margin-right:6px;}
.chip{
  display:inline-flex;align-items:center;
  padding:9px 18px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;
  font-size:14px;font-weight:600;color:var(--ink-2);
  transition:background .18s ease,border-color .18s ease,color .18s ease;
}
.chip:hover{border-color:var(--accent);background:var(--accent-soft);color:var(--accent);}
.chip.is-current{background:var(--brand);border-color:var(--brand);color:#fff;}
.chip.is-current:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;}

/* 约跑场次列表 */
.run-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.run-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.run-card:hover{border-color:rgba(226,84,44,.35);box-shadow:var(--sh-2);transform:translateY(-2px);}
.run-thumb{aspect-ratio:16/9;overflow:hidden;background:#E9E4DA;}
.run-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.run-card:hover .run-thumb img{transform:scale(1.04);}
.run-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.run-top{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.run-title{font-size:17px;font-weight:700;line-height:1.45;letter-spacing:-0.01em;}
.run-meta{display:grid;gap:6px;font-size:14px;color:var(--ink-2);}
.run-meta li{display:flex;gap:8px;}
.run-meta .k{color:var(--muted);flex-shrink:0;min-width:56px;}
.run-meta .v{font-variant-numeric:tabular-nums;}
.progress-wrap{margin-top:auto;}
.progress-top{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);margin-bottom:6px;}
.progress-track{height:6px;border-radius:var(--r-pill);background:#EFEAE2;overflow:hidden;}
.progress-fill{height:100%;border-radius:var(--r-pill);background:var(--brand);}
.progress-fill.is-full{background:var(--muted);}
.list-foot{display:flex;justify-content:center;margin-top:40px;}

/* 参与流程 */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 24px;box-shadow:var(--sh-1);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.step:hover{border-color:rgba(226,84,44,.35);box-shadow:var(--sh-2);}
.step-num{
  width:38px;height:38px;border-radius:50%;
  background:var(--accent-soft);color:var(--accent);
  display:grid;place-items:center;font-weight:700;font-size:15px;
  margin-bottom:16px;
}
.step h3{font-size:17px;font-weight:700;margin-bottom:8px;}
.step p{font-size:14px;color:var(--muted);line-height:1.75;}

/* 安全与规则 */
.rules-grid{display:grid;grid-template-columns:0.85fr 1.15fr;gap:48px;align-items:start;}
.rules-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:28px 30px;
}
.rules-list li{
  position:relative;padding-left:22px;font-size:15px;color:var(--ink-2);
  line-height:1.8;margin-bottom:16px;
}
.rules-list li:last-child{margin-bottom:0;}
.rules-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;border-radius:50%;
  background:var(--brand);
}
.rules-note{
  margin-top:22px;padding:16px 18px;border-radius:var(--r-sm);
  background:var(--accent-soft);color:var(--accent);
  font-size:14px;line-height:1.75;
}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:0.7fr 1.3fr;gap:48px;align-items:start;}
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:0 22px;transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item[open]{border-color:rgba(226,84,44,.35);box-shadow:var(--sh-1);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;gap:14px;
  padding:18px 0;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";margin-left:auto;width:10px;height:10px;
  border-right:2px solid var(--muted);
  border-bottom:2px solid var(--muted);
  transform:rotate(45deg);transition:transform .2s ease;
  flex-shrink:0;
}
.faq-item[open] summary::after{transform:rotate(-135deg);border-color:var(--brand);}
.faq-answer{padding:0 0 20px;font-size:15px;color:var(--ink-2);line-height:1.85;}

/* 相关专题阅读 */
.read-list{display:grid;gap:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;}
.read-item{
  display:flex;align-items:center;gap:20px;
  padding:22px 26px;border-bottom:1px solid var(--line);
  transition:background .18s ease;
}
.read-item:last-child{border-bottom:none;}
.read-item:hover{background:var(--paper);}
.read-item .read-tag{flex-shrink:0;}
.read-item .read-title{font-size:16px;font-weight:600;line-height:1.5;}
.read-item .read-desc{font-size:14px;color:var(--muted);margin-top:4px;}
.read-item .read-arrow{margin-left:auto;color:var(--brand);font-size:14px;font-weight:600;flex-shrink:0;}

/* 底部 CTA */
.cta-band{background:var(--ink);color:#fff;padding:64px 0;}
.cta-inner{display:flex;align-items:center;gap:36px;flex-wrap:wrap;}
.cta-band h2{font-size:clamp(20px,2.2vw,28px);line-height:1.4;letter-spacing:-0.01em;}
.cta-band p{margin-top:10px;color:#B9BDC3;font-size:15px;line-height:1.75;max-width:640px;}
.cta-action{margin-left:auto;}

/* 页脚 */
.site-footer{background:var(--ink);color:#C9CBCE;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.85;color:#A9ADB2;margin-top:16px;max-width:330px;}
.footer-mail{display:inline-block;margin-top:14px;color:var(--brand);font-size:14px;border-bottom:1px solid transparent;transition:border-color .18s ease;}
.footer-mail:hover{border-color:var(--brand);}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;}
.footer-col li{margin-bottom:10px;font-size:14px;}
.footer-col a{color:#A9ADB2;transition:color .18s ease;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 28px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#8A8F95;
}

/* 响应式 */
@media (max-width:1200px){
  .container{padding:0 20px;}
  .run-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:992px){
  .cat-hero-grid{grid-template-columns:1fr;gap:28px;}
  .cat-stats{grid-template-columns:repeat(3,1fr);gap:18px;}
  .cat-stat{display:block;padding-bottom:0;border-bottom:none;}
  .cat-stat .v{font-size:18px;margin-top:4px;}
  .steps{grid-template-columns:1fr;}
  .rules-grid,.faq-grid{grid-template-columns:1fr;gap:28px;}
  .section{padding:72px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .main-nav{
    display:none;position:absolute;top:68px;left:0;right:0;
    background:#fff;border-bottom:1px solid var(--line);
    padding:12px 20px 18px;flex-direction:column;align-items:stretch;gap:4px;
    box-shadow:var(--sh-2);
  }
  .main-nav.is-open{display:flex;}
  .main-nav a{padding:12px 8px;font-size:15px;}
  .main-nav a.is-active::after{left:8px;right:8px;bottom:6px;}
  .nav-toggle{display:block;}
  .city-select{display:none;}
  .header-inner{gap:12px;}
  .run-grid{grid-template-columns:1fr;}
  .section{padding:56px 0;}
  .cat-hero{padding:28px 0 36px;}
  .cat-stats{grid-template-columns:1fr;gap:12px;}
  .cat-stat{display:flex;border-bottom:1px dashed var(--line);padding-bottom:10px;}
  .cat-stat:last-child{border-bottom:none;padding-bottom:0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:26px;}
  .section-head-right{margin-left:0;}
  .read-item{flex-wrap:wrap;gap:10px;padding:18px 20px;}
  .read-item .read-arrow{margin-left:0;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:20px;}
  .cta-action{margin-left:0;width:100%;}
  .cta-action .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
}
@media (max-width:520px){
  .logo-text{font-size:16px;}
  .cat-hero h1{font-size:26px;}
  .btn{padding:12px 20px;font-size:14px;}
  .btn-sm{padding:8px 14px;}
  .run-body{padding:18px;}
  .step{padding:22px 20px;}
  .rules-panel{padding:22px 20px;}
  .faq-item{padding:0 18px;}
  .list-foot .btn{width:100%;}
}