/* roulang page: index */
:root{
  --c-primary:#0F7A5A;
  --c-primary-d:#0A5C45;
  --c-primary-l:#16A37A;
  --c-accent:#FF6B3D;
  --c-accent-d:#E85A2C;
  --c-sun:#FFD166;
  --c-bg:#FBF9F5;
  --c-surface:#FFFFFF;
  --c-surface-alt:#F2F6F3;
  --c-ink:#12211C;
  --c-ink-2:#4A5C55;
  --c-ink-3:#7C8C86;
  --c-line:#E4E9E5;
  --c-dark:#0E2B23;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,43,35,.06);
  --sh-2:0 8px 24px rgba(14,43,35,.08);
  --sh-3:0 18px 40px rgba(14,43,35,.12);
  --container:1200px;
  --ease:160ms ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;font-size:16px;line-height:1.85;color:var(--c-ink);background:var(--c-bg);-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--c-primary-d);text-decoration:underline;text-underline-offset:2px}
button{font:inherit;cursor:pointer}
input{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}

/* ---------- 按钮 / 标签 / 徽章 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-sm);border:1px solid transparent;font-weight:600;font-size:15px;letter-spacing:.01em;transition:all var(--ease);text-decoration:none;white-space:nowrap}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-accent-d);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-3)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-outline:hover{background:rgba(15,122,90,.08);color:var(--c-primary-d)}
.btn-ghost{background:transparent;color:var(--c-primary);border:none;padding:0;height:auto;font-weight:600}
.btn-ghost:hover{color:var(--c-primary-d)}
.btn-ghost .arrow{transition:transform var(--ease);display:inline-block}
.btn-ghost:hover .arrow{transform:translateX(3px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn[disabled]{opacity:.45;pointer-events:none}
.pill{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--r-pill);font-size:13px;font-weight:600}
.pill-soft{background:rgba(15,122,90,.1);color:var(--c-primary-d)}
.badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:var(--r-pill);font-size:12px;font-weight:600;line-height:1.6}
.badge-cat{background:rgba(15,122,90,.1);color:var(--c-primary-d)}
.badge-open{background:rgba(15,122,90,.12);color:var(--c-primary-d)}
.badge-full{background:#EDEFEE;color:#7C8C86}
.badge-hot{background:rgba(255,107,61,.14);color:#C6481F}

/* ---------- 通用区块 ---------- */
.section{padding:72px 0}
.section-alt{background:var(--c-surface-alt)}
.section-white{background:var(--c-surface)}
.section-line{border-top:1px solid var(--c-line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:36px;flex-wrap:wrap}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--c-primary);margin-bottom:10px}
.section-title{font-size:32px;font-weight:700;letter-spacing:-.01em;line-height:1.35}
.section-desc{font-size:15px;color:var(--c-ink-2);max-width:520px;line-height:1.8}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(251,249,245,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--c-line);transition:box-shadow var(--ease)}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.header-inner{position:relative;display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;color:var(--c-ink);text-decoration:none;flex-shrink:0}
.brand:hover{color:var(--c-ink);text-decoration:none}
.brand-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--c-primary),var(--c-primary-l));color:#fff;display:grid;place-items:center;font-weight:800;font-size:18px;box-shadow:var(--sh-1)}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:16.5px;font-weight:800;letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--c-ink-3);letter-spacing:.06em}
.main-nav{display:flex;align-items:center;gap:20px;margin:0 auto}
.main-nav a{color:var(--c-ink-2);font-size:14.5px;font-weight:500;padding:6px 0;position:relative;text-decoration:none;transition:color var(--ease)}
.main-nav a:hover{color:var(--c-primary)}
.main-nav a.active{color:var(--c-primary);font-weight:700}
.main-nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--c-primary)}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.city-picker{display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 14px;border-radius:var(--r-sm);border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-ink-2);font-size:13.5px;font-weight:500;text-decoration:none;transition:all var(--ease)}
.city-picker:hover{border-color:var(--c-primary);color:var(--c-primary);text-decoration:none}
.city-picker .caret{width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;border-top:5px solid currentColor}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;padding:0 10px;border:1px solid var(--c-line);border-radius:var(--r-sm);background:var(--c-surface)}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--c-ink);transition:transform var(--ease),opacity var(--ease)}
.nav-toggle.is-active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-active span:nth-child(2){opacity:0}
.nav-toggle.is-active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:64px 0 76px;background:linear-gradient(180deg,#FBF9F5 0%,#F3F8F5 100%)}
.hero::before{content:"";position:absolute;width:640px;height:640px;border:1.5px dashed rgba(15,122,90,.13);border-radius:50%;right:-200px;top:-240px;pointer-events:none}
.hero::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(15,122,90,.07) 1px,transparent 1px);background-size:24px 24px;opacity:.55;pointer-events:none}
.hero .container{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-copy h1{font-size:46px;line-height:1.28;font-weight:800;letter-spacing:-.01em;margin:18px 0 0}
.hero-sub{font-size:17px;color:var(--c-ink-2);line-height:1.9;margin-top:20px;max-width:560px}
.hero-actions{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:40px;padding-top:28px;border-top:1px dashed var(--c-line)}
.hero-stats li{display:flex;flex-direction:column;gap:2px}
.hero-stats strong{font-size:26px;font-weight:700;letter-spacing:-.02em;color:var(--c-primary-d)}
.hero-stats span{font-size:13px;color:var(--c-ink-3)}
.hero-media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-3);background:var(--c-surface)}
.hero-media img{width:100%;aspect-ratio:3/2;object-fit:cover}
.hero-media figcaption{position:absolute;left:16px;bottom:16px;background:rgba(14,43,35,.78);color:#fff;font-size:12.5px;padding:7px 14px;border-radius:var(--r-pill);backdrop-filter:blur(4px)}

/* ---------- 城市快速切换条 ---------- */
.city-strip{background:var(--c-surface);border-bottom:1px solid var(--c-line);padding:16px 0}
.city-strip-inner{display:flex;align-items:center;gap:18px}
.strip-label{font-size:13.5px;font-weight:700;color:var(--c-ink-2);flex-shrink:0;white-space:nowrap}
.city-chips{display:flex;gap:10px;overflow-x:auto;padding:4px 2px;scrollbar-width:none;-webkit-overflow-scrolling:touch;mask-image:linear-gradient(90deg,#000 92%,transparent 100%)}
.city-chips::-webkit-scrollbar{display:none}
.chip{display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:var(--r-pill);background:var(--c-surface-alt);color:var(--c-ink-2);font-size:13.5px;font-weight:500;white-space:nowrap;text-decoration:none;transition:all var(--ease)}
.chip:hover{background:rgba(15,122,90,.1);color:var(--c-primary-d);text-decoration:none}
.chip.is-active{background:var(--c-primary);color:#fff}
.chip.is-active:hover{background:var(--c-primary-d);color:#fff}

/* ---------- 三大能力卡 ---------- */
.ability-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ability-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:30px 26px;box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease);display:flex;flex-direction:column}
.ability-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.ability-icon{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:rgba(15,122,90,.1);color:var(--c-primary);margin-bottom:18px}
.ability-icon svg{width:22px;height:22px}
.ability-card h3{font-size:20px;font-weight:700;margin-bottom:10px}
.ability-card p{font-size:15px;color:var(--c-ink-2);line-height:1.85;margin-bottom:18px}
.ability-card .btn-ghost{margin-top:auto;align-self:flex-start}

/* ---------- 今日约跑 ---------- */
.run-layout{display:grid;grid-template-columns:1fr 360px;gap:24px;align-items:start}
.run-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.run-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease);display:flex;flex-direction:column}
.run-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.run-card .thumb{overflow:hidden}
.run-card .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform var(--ease)}
.run-card:hover .thumb img{transform:scale(1.03)}
.run-card .body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.run-card h3{font-size:17px;font-weight:700;line-height:1.5}
.run-meta{display:flex;flex-wrap:wrap;gap:6px 14px;font-size:13px;color:var(--c-ink-3)}
.run-meta b{color:var(--c-ink-2);font-weight:600}
.run-card .body .btn{margin-top:auto}
.run-side{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden}
.run-side h3{font-size:16px;font-weight:700;padding:18px 20px;border-bottom:1px solid var(--c-line)}
.run-row{display:flex;align-items:center;gap:14px;padding:14px 20px;border-bottom:1px dashed var(--c-line);transition:background var(--ease)}
.run-row:last-child{border-bottom:none}
.run-row:hover{background:var(--c-surface-alt)}
.run-time{font-size:13.5px;font-weight:700;color:var(--c-primary);flex-shrink:0;width:52px;letter-spacing:-.01em}
.run-row .info{flex:1;min-width:0}
.run-row .info strong{display:block;font-size:14.5px;font-weight:600;color:var(--c-ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.run-row .info span{font-size:12.5px;color:var(--c-ink-3)}

/* ---------- 聊天广场 ---------- */
.chat-wrap{display:grid;grid-template-columns:1fr 1.25fr;gap:24px;align-items:stretch}
.chat-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-1)}
.chat-card h3{font-size:19px;font-weight:700;margin-bottom:16px}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
.tag{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);border:1px solid var(--c-line);background:var(--c-surface-alt);font-size:13.5px;color:var(--c-ink-2);text-decoration:none;transition:all var(--ease)}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary);background:rgba(15,122,90,.06);text-decoration:none}
.topic-list{display:flex;flex-direction:column}
.topic-row{display:flex;align-items:center;gap:16px;padding:16px 0;border-bottom:1px dashed var(--c-line);transition:background var(--ease)}
.topic-row:last-of-type{border-bottom:none}
.topic-row:hover{background:rgba(15,122,90,.04)}
.topic-row .dot{width:8px;height:8px;border-radius:50%;background:var(--c-primary-l);flex-shrink:0}
.topic-row .txt{flex:1;min-width:0}
.topic-row .txt strong{display:block;font-size:15px;font-weight:700;color:var(--c-ink)}
.topic-row .txt p{font-size:13.5px;color:var(--c-ink-3);line-height:1.7;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topic-row .online{font-size:13px;color:var(--c-primary);font-weight:700;white-space:nowrap}
.chat-foot{margin-top:20px;padding-top:18px;border-top:1px solid var(--c-line);display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.chat-foot span{font-size:13.5px;color:var(--c-ink-3)}

/* ---------- 全国可飞城市榜 ---------- */
.region-block{margin-bottom:26px}
.region-block:last-child{margin-bottom:0}
.region-label{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:700;color:var(--c-ink-2);margin-bottom:14px}
.region-label::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent)}
.region-label em{font-style:normal;font-size:12.5px;font-weight:500;color:var(--c-ink-3)}
.city-board{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.city-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);padding:16px 18px;box-shadow:var(--sh-1);transition:all var(--ease)}
.city-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(15,122,90,.35)}
.city-card strong{display:block;font-size:16px;font-weight:700;margin-bottom:4px}
.city-card span{display:block;font-size:12.5px;color:var(--c-ink-3);line-height:1.7}
.city-card .num{color:var(--c-primary);font-weight:700}

/* ---------- 打卡墙 ---------- */
.checkin-wall{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.checkin-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease)}
.checkin-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.checkin-item img{width:100%;aspect-ratio:1/1;object-fit:cover;transition:transform var(--ease)}
.checkin-item:hover img{transform:scale(1.03)}
.checkin-body{padding:12px 14px 14px;display:flex;align-items:center;gap:10px}
.avatar{width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg,var(--c-primary),var(--c-primary-l));color:#fff;display:grid;place-items:center;font-size:13px;font-weight:700;flex-shrink:0}
.checkin-body .who{min-width:0}
.checkin-body .who strong{display:block;font-size:13.5px;font-weight:700}
.checkin-body .who span{font-size:12px;color:var(--c-ink-3)}

/* ---------- 专题栏目 ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.topic-card{display:flex;align-items:center;gap:12px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);padding:16px;text-decoration:none;color:var(--c-ink);box-shadow:var(--sh-1);transition:all var(--ease)}
.topic-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(15,122,90,.35);color:var(--c-primary-d);text-decoration:none}
.topic-card .ico{width:34px;height:34px;border-radius:10px;background:rgba(15,122,90,.1);color:var(--c-primary);display:grid;place-items:center;font-size:15px;font-weight:800;flex-shrink:0}
.topic-card span{font-size:14.5px;font-weight:600;line-height:1.5}

/* ---------- 最新动态 ---------- */
.news-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(--r-lg);overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;transition:transform var(--ease),box-shadow var(--ease)}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.post-thumb{display:block;overflow:hidden}
.post-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform var(--ease)}
.post-card:hover .post-thumb img{transform:scale(1.03)}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{font-size:17px;font-weight:700;line-height:1.55}
.post-body h3 a{color:var(--c-ink)}
.post-body h3 a:hover{color:var(--c-primary)}
.post-body p{font-size:14px;color:var(--c-ink-2);line-height:1.8;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:12px;font-size:12.5px;color:var(--c-ink-3);margin-top:auto;padding-top:6px}
.post-meta a{font-weight:600}
.empty-state{grid-column:1/-1;min-height:220px;border:1px dashed var(--c-line);border-radius:var(--r-lg);background:var(--c-surface-alt);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:36px 24px;text-align:center}
.empty-state .ico{width:46px;height:46px;border-radius:50%;display:grid;place-items:center;background:rgba(15,122,90,.1);color:var(--c-primary);font-size:20px}
.empty-state p{font-size:14px;color:var(--c-ink-3)}

/* ---------- 三步流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative}
.step{position:relative;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:28px 24px;box-shadow:var(--sh-1)}
.step-num{font-size:44px;font-weight:800;line-height:1;color:transparent;-webkit-text-stroke:1.5px rgba(15,122,90,.4);letter-spacing:-.02em;margin-bottom:12px}
.step h3{font-size:18px;font-weight:700;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--c-ink-2);line-height:1.8}

/* ---------- 安全与礼仪 ---------- */
.safety-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.safety-media{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2)}
.safety-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.check-list{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:24px}
.check-item{display:flex;align-items:center;gap:10px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-sm);padding:12px 14px;font-size:14px;font-weight:600;color:var(--c-ink-2)}
.check-item::before{content:"";width:18px;height:18px;border-radius:50%;background:rgba(15,122,90,.12);flex-shrink:0;position:relative}
.safety-text h2{font-size:30px;font-weight:700;line-height:1.4;margin-bottom:16px}
.safety-text p{font-size:15.5px;color:var(--c-ink-2);line-height:1.9;margin-bottom:14px}
.point-list{display:flex;flex-direction:column;gap:12px;margin:22px 0}
.point-list li{display:flex;gap:12px;font-size:15px;color:var(--c-ink-2);line-height:1.8}
.point-list li::before{content:"—";color:var(--c-accent);font-weight:700;flex-shrink:0}

/* ---------- 数据与信任 ---------- */
.stats-panel{background:var(--c-dark);border-radius:var(--r-lg);padding:48px 40px;color:#fff;position:relative;overflow:hidden}
.stats-panel::before{content:"";position:absolute;width:420px;height:420px;border:1.5px dashed rgba(255,209,102,.18);border-radius:50%;right:-140px;bottom:-200px}
.stats-panel h2{font-size:28px;font-weight:700;color:#fff;margin-bottom:10px}
.stats-panel > p{font-size:15px;color:rgba(255,255,255,.72);max-width:620px;line-height:1.9}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin:32px 0 28px;position:relative;z-index:1}
.stat strong{display:block;font-size:32px;font-weight:700;letter-spacing:-.02em;color:var(--c-sun)}
.stat span{font-size:13.5px;color:rgba(255,255,255,.7)}
.trust-badges{display:flex;flex-wrap:wrap;gap:10px;position:relative;z-index:1}
.trust-badges span{display:inline-flex;align-items:center;gap:6px;border:1px solid rgba(255,255,255,.24);border-radius:var(--r-pill);padding:6px 14px;font-size:13px;color:rgba(255,255,255,.85)}

/* ---------- 跑友评价 ---------- */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.quote-card{background:var(--c-surface);border:1px solid var(--c-line);border-left:4px solid var(--c-primary-l);border-radius:var(--r-md);padding:24px;box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease)}
.quote-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.quote-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.quote-head .who strong{display:block;font-size:14.5px;font-weight:700}
.quote-head .who span{font-size:12.5px;color:var(--c-ink-3)}
.quote-card p{font-size:14.5px;color:var(--c-ink-2);line-height:1.85}

/* ---------- FAQ + CTA ---------- */
.faq-layout{display:grid;grid-template-columns:1.35fr .85fr;gap:32px;align-items:start}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);transition:border-color var(--ease)}
.faq-item.is-open{border-color:rgba(15,122,90,.4)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;background:none;border:none;padding:18px 20px;text-align:left;font-size:15.5px;font-weight:600;color:var(--c-ink);transition:color var(--ease)}
.faq-q:hover{color:var(--c-primary)}
.faq-item.is-open .faq-q{color:var(--c-primary-d)}
.faq-icon{position:relative;width:18px;height:18px;flex-shrink:0}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:transform var(--ease)}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg)}
.faq-item.is-open .faq-icon::before{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease}
.faq-item.is-open .faq-a{max-height:340px}
.faq-a p{padding:0 20px 20px;font-size:14.5px;color:var(--c-ink-2);line-height:1.9;background:linear-gradient(180deg,rgba(242,246,243,0),rgba(242,246,243,.85));margin:0}
.cta-card{background:var(--c-dark);color:#fff;border-radius:var(--r-lg);padding:32px 28px;position:relative;overflow:hidden}
.cta-card::before{content:"";position:absolute;width:280px;height:280px;border:1.5px dashed rgba(255,209,102,.2);border-radius:50%;right:-100px;top:-120px}
.cta-card h3{font-size:23px;font-weight:700;line-height:1.5;margin-bottom:12px;position:relative;z-index:1}
.cta-card p{font-size:14.5px;color:rgba(255,255,255,.76);line-height:1.9;position:relative;z-index:1}
.cta-card .btn{margin-top:22px;width:100%;position:relative;z-index:1}
.qr-slot{margin-top:16px;border:1px dashed rgba(255,255,255,.28);border-radius:var(--r-md);padding:14px;text-align:center;font-size:12.5px;color:rgba(255,255,255,.6);position:relative;z-index:1}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-dark);color:#fff;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr 1.2fr;gap:40px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:linear-gradient(135deg,var(--c-primary-l),var(--c-sun));color:#0E2B23}
.footer-brand strong{font-size:16.5px;font-weight:800;color:#fff;letter-spacing:-.01em}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col p{font-size:13.5px;color:rgba(255,255,255,.66);line-height:1.85;max-width:280px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{font-size:13.5px;color:rgba(255,255,255,.7);text-decoration:none;transition:color var(--ease)}
.footer-col ul a:hover{color:var(--c-sun);text-decoration:none}
.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,.2);display:grid;place-items:center;font-size:12px;color:rgba(255,255,255,.72);transition:all var(--ease)}
.social-row span:hover{border-color:var(--c-sun);color:var(--c-sun)}
.sub-form{display:flex;gap:10px;margin-top:4px}
.sub-form input{flex:1;min-width:0;height:44px;padding:0 14px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.06);color:#fff;font-size:14px;transition:all var(--ease)}
.sub-form input::placeholder{color:rgba(255,255,255,.45)}
.sub-form input:focus{outline:none;border-color:var(--c-primary-l);box-shadow:0 0 0 3px rgba(22,163,122,.2)}
.sub-form button{height:44px;padding:0 20px;border:none;border-radius:var(--r-sm);background:var(--c-accent);color:#fff;font-weight:600;font-size:14px;transition:all var(--ease)}
.sub-form button:hover{background:var(--c-accent-d)}
.sub-note{font-size:12.5px;color:rgba(255,255,255,.5);margin-top:10px;line-height:1.7}
.sub-check{display:flex;align-items:flex-start;gap:8px;font-size:12.5px;color:rgba(255,255,255,.6);margin-top:12px;line-height:1.7}
.sub-check input{margin-top:4px;accent-color:var(--c-primary-l)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;font-size:12.5px;color:rgba(255,255,255,.55)}
.footer-bottom a{color:rgba(255,255,255,.62);text-decoration:none}
.footer-bottom a:hover{color:var(--c-sun)}
.footer-bottom .links{display:flex;gap:16px;flex-wrap:wrap}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .main-nav{gap:14px}
  .main-nav a{font-size:13.5px}
  .hero-copy h1{font-size:40px}
  .run-grid{grid-template-columns:repeat(2,1fr)}
  .city-board{grid-template-columns:repeat(3,1fr)}
  .topic-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:56px 0}
  .main-nav{display:none;position:absolute;top:100%;left:-24px;right:-24px;background:var(--c-surface);border-bottom:1px solid var(--c-line);flex-direction:column;align-items:stretch;gap:0;padding:8px 24px 20px;box-shadow:var(--sh-2);margin:0;z-index:90}
  .main-nav.is-open{display:flex}
  .main-nav a{padding:13px 0;border-bottom:1px dashed var(--c-line);font-size:15px}
  .main-nav a:last-child{border-bottom:none}
  .main-nav a.active::after{display:none}
  .nav-toggle{display:flex}
  .city-picker{display:none}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-copy h1{font-size:34px}
  .hero-media img{aspect-ratio:16/9}
  .ability-grid{grid-template-columns:1fr}
  .run-layout{grid-template-columns:1fr}
  .chat-wrap{grid-template-columns:1fr}
  .city-board{grid-template-columns:repeat(2,1fr)}
  .checkin-wall{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .topic-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr}
  .safety-grid{grid-template-columns:1fr;gap:32px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .quote-grid{grid-template-columns:1fr}
  .faq-layout{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:44px 0}
  .section-head{margin-bottom:26px;gap:16px}
  .section-title{font-size:24px}
  .hero{padding:40px 0 52px}
  .hero-copy h1{font-size:29px;line-height:1.35}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:18px;margin-top:30px}
  .hero-stats strong{font-size:22px}
  .ability-card,.chat-card,.step{padding:22px 20px}
  .run-grid{grid-template-columns:1fr}
  .city-board{grid-template-columns:1fr 1fr}
  .checkin-wall{grid-template-columns:1fr 1fr}
  .news-grid{grid-template-columns:1fr}
  .topic-grid{grid-template-columns:1fr 1fr}
  .check-list{grid-template-columns:1fr}
  .stats-panel{padding:32px 22px}
  .stats-panel h2{font-size:23px}
  .stats-grid{gap:18px}
  .stat strong{font-size:26px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .site-footer{padding-top:44px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .sub-form{flex-direction:column}
  .sub-form button{width:100%}
}
@media (max-width:419px){
  .hero-copy h1{font-size:25px}
  .section-title{font-size:21px}
  .city-board{grid-template-columns:1fr}
  .checkin-wall{grid-template-columns:1fr}
  .topic-grid{grid-template-columns:1fr}
  .brand-text em{display:none}
}

/* roulang page: article */
:root{
  --c-primary:#0F7A5A;
  --c-primary-d:#0A5C45;
  --c-primary-l:#16A37A;
  --c-accent:#FF6B3D;
  --c-accent-d:#E85A2C;
  --c-sun:#FFD166;
  --c-bg:#FBF9F5;
  --c-surface:#FFFFFF;
  --c-surface-alt:#F2F6F3;
  --c-ink:#12211C;
  --c-ink-2:#4A5C55;
  --c-ink-3:#7C8C86;
  --c-line:#E4E9E5;
  --c-dark:#0E2B23;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,43,35,.06);
  --sh-2:0 8px 24px rgba(14,43,35,.08);
  --sh-3:0 18px 40px rgba(14,43,35,.12);
  --container:1200px;
  --ease:160ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;font-size:16px;line-height:1.85;color:var(--c-ink);background:var(--c-bg);-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,h5,p,figure,blockquote{margin:0}
img{display:block;max-width:100%}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--c-primary-d);text-decoration:underline;text-underline-offset:2px}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
button{font:inherit;cursor:pointer}
input{font:inherit}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-sm);border:1px solid transparent;font-weight:600;font-size:15px;letter-spacing:.01em;transition:all var(--ease);text-decoration:none;white-space:nowrap}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-accent-d);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-3)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-outline:hover{background:rgba(15,122,90,.08);color:var(--c-primary-d)}
.btn-ghost{background:transparent;color:var(--c-primary);border:none;padding:0;height:auto;font-weight:600}
.btn-ghost:hover{color:var(--c-primary-d)}
.btn-ghost .arrow{transition:transform var(--ease);display:inline-block}
.btn-ghost:hover .arrow{transform:translateX(3px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.pill{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--r-pill);font-size:13px;font-weight:600}
.pill-soft{background:rgba(15,122,90,.1);color:var(--c-primary-d)}
.badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:var(--r-pill);font-size:12px;font-weight:600;line-height:1.6}
.badge-cat{background:rgba(15,122,90,.1);color:var(--c-primary-d)}
.badge-hot{background:rgba(255,107,61,.14);color:#C6481F}
.badge-soft{background:#EDEFEE;color:#5D6E67}
/* 区块 */
.section{padding:72px 0}
.section-alt{background:var(--c-surface-alt)}
.section-white{background:var(--c-surface)}
.section-line{border-top:1px solid var(--c-line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:36px;flex-wrap:wrap}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--c-primary);margin-bottom:10px}
.section-title{font-size:30px;font-weight:700;letter-spacing:-.01em;line-height:1.35}
.section-desc{font-size:15px;color:var(--c-ink-2);max-width:560px;line-height:1.8}
/* Header */
.site-header{position:sticky;top:0;z-index:80;background:rgba(251,249,245,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--c-line);transition:box-shadow var(--ease)}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.header-inner{position:relative;display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;color:var(--c-ink);text-decoration:none;flex-shrink:0}
.brand:hover{color:var(--c-ink);text-decoration:none}
.brand-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--c-primary),var(--c-primary-l));color:#fff;display:grid;place-items:center;font-weight:800;font-size:18px;box-shadow:var(--sh-1)}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:16.5px;font-weight:800;letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--c-ink-3);letter-spacing:.06em}
.main-nav{display:flex;align-items:center;gap:20px;margin:0 auto}
.main-nav a{color:var(--c-ink-2);font-size:14.5px;font-weight:500;padding:6px 0;position:relative;text-decoration:none;transition:color var(--ease)}
.main-nav a:hover{color:var(--c-primary)}
.main-nav a.active{color:var(--c-primary);font-weight:700}
.main-nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--c-primary)}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.city-picker{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--c-ink-2);padding:8px 14px;border:1px solid var(--c-line);border-radius:var(--r-pill);background:var(--c-surface);transition:all var(--ease)}
.city-picker:hover{color:var(--c-primary);border-color:var(--c-primary);text-decoration:none}
.caret{width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;border-top:5px solid currentColor;display:inline-block}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;padding:0 10px;border:1px solid var(--c-line);border-radius:var(--r-sm);background:var(--c-surface)}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--c-ink);transition:transform var(--ease),opacity var(--ease)}
.nav-toggle.is-active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-active span:nth-child(2){opacity:0}
.nav-toggle.is-active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
/* 文章页头部 */
.article-top{position:relative;background:linear-gradient(180deg,#FBF9F5 0%,#F3F8F5 100%);border-bottom:1px solid var(--c-line);overflow:hidden}
.article-top::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(15,122,90,.08) 1px,transparent 1px);background-size:26px 26px;opacity:.5;pointer-events:none}
.article-top .container{position:relative;z-index:1}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-3);padding:26px 0 0}
.crumbs a{color:var(--c-ink-3)}
.crumbs a:hover{color:var(--c-primary)}
.crumbs .sep{color:#C3CCC7}
.crumbs .cur{color:var(--c-ink);font-weight:700}
.article-head{max-width:880px;padding:22px 0 44px}
.article-head h1{font-size:40px;line-height:1.32;font-weight:800;letter-spacing:-.01em;margin:16px 0 0}
.article-lead{margin-top:18px;font-size:16.5px;line-height:1.9;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:20px;font-size:13.5px;color:var(--c-ink-3)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#C3CCC7;display:inline-block}
.meta-row strong{color:var(--c-ink-2);font-weight:600}
/* 主体 */
.article-main{padding:48px 0 72px}
.article-wrap{max-width:820px;margin:0 auto}
.article-cover{border-radius:var(--r-lg);overflow:hidden;background:var(--c-surface-alt);box-shadow:var(--sh-2);aspect-ratio:16/9}
.article-cover img{width:100%;height:100%;object-fit:cover}
.cover-note{font-size:13px;color:var(--c-ink-3);margin-top:10px;text-align:center}
.toc{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);padding:16px 22px;margin:30px 0 0;box-shadow:var(--sh-1)}
.toc summary{cursor:pointer;font-weight:700;font-size:15.5px;color:var(--c-ink);list-style:none;display:flex;align-items:center;justify-content:space-between}
.toc summary::-webkit-details-marker{display:none}
.toc summary::after{content:"+";font-size:20px;font-weight:700;color:var(--c-primary);transition:transform var(--ease)}
.toc[open] summary::after{transform:rotate(45deg)}
.toc ul{margin:14px 0 0;padding:0;list-style:none;display:grid;gap:8px}
.toc li a{font-size:14.5px;color:var(--c-ink-2);display:inline-flex;gap:8px;align-items:center}
.toc li a::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--c-primary);display:inline-block;opacity:.6}
.toc li a:hover{color:var(--c-primary)}
/* 正文排版 */
.article-body{font-size:17px;line-height:1.9;color:var(--c-ink);margin-top:34px;max-width:760px}
.article-body h2{font-size:25px;font-weight:700;line-height:1.45;margin:2em 0 .7em;padding-left:14px;border-left:4px solid var(--c-primary);letter-spacing:-.01em}
.article-body h3{font-size:20px;font-weight:700;margin:1.6em 0 .6em}
.article-body h4{font-size:17.5px;font-weight:700;margin:1.4em 0 .5em}
.article-body p{margin:0 0 1.2em}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:24px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.4em 0}
.article-body li::marker{color:var(--c-primary)}
.article-body blockquote{margin:1.6em 0;padding:16px 22px;border-left:4px solid var(--c-sun);background:var(--c-surface-alt);border-radius:0 var(--r-md) var(--r-md) 0;color:var(--c-ink-2);font-size:16px}
.article-body img{border-radius:var(--r-md);margin:1.6em auto;box-shadow:var(--sh-1)}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:2px}
.article-body a:hover{color:var(--c-primary-d)}
.article-body code{background:var(--c-surface-alt);padding:2px 6px;border-radius:6px;font-size:.92em;color:var(--c-primary-d)}
.article-body pre{background:var(--c-dark);color:#E9F2EE;padding:18px 20px;border-radius:var(--r-md);overflow-x:auto;font-size:14.5px;line-height:1.75;margin:1.6em 0}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:10px 14px;text-align:left}
.article-body th{background:var(--c-surface-alt);font-weight:700}
.article-body hr{border:none;border-top:1px dashed var(--c-line);margin:2em 0}
/* 文内提示条 */
.note-card{background:var(--c-surface);border:1px solid var(--c-line);border-left:4px solid var(--c-primary);border-radius:var(--r-md);padding:18px 22px;margin:26px 0;box-shadow:var(--sh-1);font-size:15px;color:var(--c-ink-2)}
.note-card strong{color:var(--c-ink)}
/* 标签与分享 */
.tag-share{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;margin-top:44px;padding-top:26px;border-top:1px solid var(--c-line)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--r-pill);border:1px solid var(--c-line);background:var(--c-surface);font-size:13px;color:var(--c-ink-2);transition:all var(--ease)}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary);text-decoration:none;background:rgba(15,122,90,.06)}
.share-row{display:flex;align-items:center;gap:10px}
.share-btn{display:inline-flex;align-items:center;gap:6px;height:38px;padding:0 16px;border-radius:var(--r-sm);border:1px solid var(--c-line);background:var(--c-surface);font-size:13.5px;color:var(--c-ink-2);transition:all var(--ease)}
.share-btn:hover{border-color:var(--c-primary);color:var(--c-primary);text-decoration:none;transform:translateY(-1px);box-shadow:var(--sh-1)}
/* 相关推荐 */
.related-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(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease);display:flex;flex-direction:column}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.post-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--c-surface-alt)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease}
.post-card:hover .post-thumb img{transform:scale(1.03)}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{font-size:17px;font-weight:700;line-height:1.55}
.post-body h3 a{color:var(--c-ink)}
.post-body h3 a:hover{color:var(--c-primary);text-decoration:none}
.post-body p{font-size:14px;line-height:1.75;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--c-ink-3);margin-top:auto}
/* 上一篇/下一篇 */
.prevnext{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.pn-card{display:flex;flex-direction:column;gap:6px;padding:20px 22px;border:1px solid var(--c-line);border-radius:var(--r-md);background:var(--c-surface);transition:all var(--ease)}
.pn-card:hover{border-color:var(--c-primary);box-shadow:var(--sh-2);text-decoration:none;transform:translateY(-2px)}
.pn-card span{font-size:12.5px;color:var(--c-ink-3);letter-spacing:.08em}
.pn-card strong{font-size:15.5px;color:var(--c-ink);font-weight:700;line-height:1.6}
.pn-card:hover strong{color:var(--c-primary)}
.back-row{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:36px}
/* 分类入口 */
.cat-entry{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:8px}
.cat-pill{display:flex;flex-direction:column;gap:4px;padding:16px 18px;border-radius:var(--r-md);background:var(--c-surface);border:1px solid var(--c-line);transition:all var(--ease);text-decoration:none}
.cat-pill:hover{border-color:var(--c-primary);box-shadow:var(--sh-2);text-decoration:none;transform:translateY(-2px)}
.cat-pill strong{font-size:15px;color:var(--c-ink);font-weight:700}
.cat-pill span{font-size:12.5px;color:var(--c-ink-3)}
.cat-pill:hover strong{color:var(--c-primary)}
/* 订阅条 */
.sub-cta{background:var(--c-dark);border-radius:var(--r-lg);padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;color:#fff;position:relative;overflow:hidden}
.sub-cta::before{content:"";position:absolute;width:420px;height:420px;border:1.5px dashed rgba(255,209,102,.22);border-radius:50%;right:-140px;top:-180px}
.sub-cta h3{font-size:24px;font-weight:700;letter-spacing:-.01em;position:relative;z-index:1}
.sub-cta p{font-size:14.5px;color:rgba(255,255,255,.72);margin-top:8px;position:relative;z-index:1}
.sub-cta form{display:flex;gap:10px;flex-wrap:wrap;position:relative;z-index:1}
.sub-cta input{height:48px;min-width:250px;padding:0 16px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.1);color:#fff;font-size:14px}
.sub-cta input::placeholder{color:rgba(255,255,255,.55)}
.sub-cta input:focus{outline:none;border-color:var(--c-sun);box-shadow:0 0 0 3px rgba(255,209,102,.18)}
/* 空态 */
.empty-state{min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;background:var(--c-surface-alt);border:1px dashed var(--c-line);border-radius:var(--r-lg);padding:36px 24px;color:var(--c-ink-2);font-size:15px}
.empty-icon{width:52px;height:52px;border-radius:50%;background:#fff;display:grid;place-items:center;color:var(--c-primary);border:1px solid var(--c-line);font-size:22px;font-weight:700}
/* Footer */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.78);padding:60px 0 0;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand strong{color:#fff;font-size:16.5px;font-weight:800}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66)}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px}
.footer-col ul{padding:0;margin:0;list-style:none;display:grid;gap:9px}
.footer-col ul a{color:rgba(255,255,255,.72);font-size:14px}
.footer-col ul a:hover{color:var(--c-sun);text-decoration:none}
.social-row{display:flex;gap:10px;margin-top:16px}
.social-row span{font-size:12.5px;padding:5px 12px;border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.72)}
.sub-form{display:flex;gap:8px}
.sub-form input{flex:1;min-width:0;height:42px;padding:0 14px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.08);color:#fff;font-size:14px}
.sub-form input::placeholder{color:rgba(255,255,255,.5)}
.sub-form input:focus{outline:none;border-color:var(--c-sun)}
.sub-form button{height:42px;padding:0 18px;border:none;border-radius:var(--r-sm);background:var(--c-accent);color:#fff;font-weight:600;font-size:14px;transition:background var(--ease)}
.sub-form button:hover{background:var(--c-accent-d)}
.sub-note{font-size:12.5px;color:rgba(255,255,255,.5);margin-top:10px;line-height:1.7}
.sub-check{display:flex;gap:8px;font-size:12.5px;color:rgba(255,255,255,.55);margin-top:10px;line-height:1.7;align-items:flex-start}
.sub-check input{margin-top:4px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;font-size:13px;color:rgba(255,255,255,.55)}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:16px}
.footer-bottom a{color:rgba(255,255,255,.62)}
.footer-bottom a:hover{color:var(--c-sun);text-decoration:none}
/* 响应式 */
@media (max-width:1199px){
  .main-nav{gap:14px}
  .main-nav a{font-size:14px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .main-nav{display:none;position:absolute;left:0;right:0;top:68px;flex-direction:column;align-items:flex-start;gap:0;background:var(--c-surface);border-bottom:1px solid var(--c-line);box-shadow:var(--sh-2);padding:10px 24px 18px;margin:0}
  .main-nav.is-open{display:flex}
  .main-nav a{width:100%;padding:12px 0;border-bottom:1px dashed var(--c-line);font-size:15px}
  .main-nav a.active::after{display:none}
  .nav-toggle{display:flex}
  .city-picker span.caret{margin-left:2px}
  .article-head h1{font-size:32px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .cat-entry{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .header-inner{height:56px}
  .city-picker{display:none}
  .brand-text strong{font-size:15px}
  .brand-text em{font-size:10.5px}
  .main-nav{top:56px}
  .section{padding:44px 0}
  .section-title{font-size:24px}
  .article-main{padding:34px 0 52px}
  .article-head{padding:16px 0 32px}
  .article-head h1{font-size:27px;line-height:1.4}
  .article-lead{font-size:15px}
  .article-body{font-size:16px;line-height:1.85;margin-top:26px}
  .article-body h2{font-size:21px}
  .article-body h3{font-size:18px}
  .tag-share{flex-direction:column;align-items:flex-start}
  .related-grid{grid-template-columns:1fr}
  .prevnext{grid-template-columns:1fr}
  .cat-entry{grid-template-columns:1fr}
  .sub-cta{padding:28px 22px;border-radius:var(--r-md)}
  .sub-cta h3{font-size:20px}
  .sub-cta input{min-width:0;width:100%}
  .sub-cta form{width:100%}
  .sub-cta form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:419px){
  .article-head h1{font-size:24px}
  .article-body{font-size:15.5px}
  .share-btn{padding:0 12px;font-size:12.5px}
}

/* roulang page: category1 */
:root{
  --c-primary:#0F7A5A;
  --c-primary-d:#0A5C45;
  --c-primary-l:#16A37A;
  --c-accent:#FF6B3D;
  --c-accent-d:#E85A2C;
  --c-sun:#FFD166;
  --c-bg:#FBF9F5;
  --c-surface:#FFFFFF;
  --c-surface-alt:#F2F6F3;
  --c-ink:#12211C;
  --c-ink-2:#4A5C55;
  --c-ink-3:#7C8C86;
  --c-line:#E4E9E5;
  --c-dark:#0E2B23;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,43,35,.06);
  --sh-2:0 8px 24px rgba(14,43,35,.08);
  --sh-3:0 18px 40px rgba(14,43,35,.12);
  --container:1200px;
  --ease:160ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;font-size:16px;line-height:1.85;color:var(--c-ink);background:var(--c-bg);-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--c-primary-d);text-decoration:underline;text-underline-offset:2px}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
button{font:inherit;cursor:pointer}
input,select{font:inherit}
h1,h2,h3,h4{margin:0;line-height:1.35;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
/* ---------- 按钮 / 标签 / 徽章 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-sm);border:1px solid transparent;font-weight:600;font-size:15px;letter-spacing:.01em;transition:all var(--ease);text-decoration:none;white-space:nowrap}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-accent-d);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-3)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-outline:hover{background:rgba(15,122,90,.08);color:var(--c-primary-d)}
.btn-ghost{background:transparent;color:var(--c-primary);border:none;padding:0;height:auto;font-weight:600}
.btn-ghost .arrow{transition:transform var(--ease);display:inline-block}
.btn-ghost:hover .arrow{transform:translateX(3px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.pill{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--r-pill);font-size:13px;font-weight:600}
.pill-soft{background:rgba(15,122,90,.1);color:var(--c-primary-d)}
.badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:var(--r-pill);font-size:12px;font-weight:600;line-height:1.6}
.badge-cat{background:rgba(15,122,90,.1);color:var(--c-primary-d)}
.badge-hot{background:rgba(255,107,61,.14);color:#C6481F}
/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(251,249,245,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--c-line);transition:box-shadow var(--ease)}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.header-inner{position:relative;display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;color:var(--c-ink);text-decoration:none;flex-shrink:0}
.brand:hover{color:var(--c-ink);text-decoration:none}
.brand-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--c-primary),var(--c-primary-l));color:#fff;display:grid;place-items:center;font-weight:800;font-size:18px;box-shadow:var(--sh-1)}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:16.5px;font-weight:800;letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--c-ink-3);letter-spacing:.06em}
.main-nav{display:flex;align-items:center;gap:20px;margin:0 auto}
.main-nav a{color:var(--c-ink-2);font-size:14.5px;font-weight:500;padding:6px 0;position:relative;text-decoration:none;transition:color var(--ease)}
.main-nav a:hover{color:var(--c-primary);text-decoration:none}
.main-nav a.active{color:var(--c-primary);font-weight:700}
.main-nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--c-primary)}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.city-picker{font-size:13.5px;color:var(--c-ink-2);padding:8px 14px;border:1px solid var(--c-line);border-radius:var(--r-pill);background:var(--c-surface);white-space:nowrap;text-decoration:none}
.city-picker:hover{color:var(--c-primary-d);border-color:var(--c-primary);text-decoration:none}
.caret{display:inline-block;width:0;height:0;margin-left:4px;border-left:4px solid transparent;border-right:4px solid transparent;border-top:5px solid currentColor;vertical-align:middle}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;padding:0 10px;border:1px solid var(--c-line);border-radius:var(--r-sm);background:var(--c-surface)}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--c-ink);transition:transform var(--ease),opacity var(--ease)}
.nav-toggle.is-active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-active span:nth-child(2){opacity:0}
.nav-toggle.is-active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
/* ---------- 通用区块 ---------- */
.section{padding:72px 0}
.section-alt{background:var(--c-surface-alt)}
.section-white{background:var(--c-surface)}
.section-line{border-top:1px solid var(--c-line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:34px;flex-wrap:wrap}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--c-primary);margin-bottom:10px}
.section-title{font-size:32px;font-weight:700;line-height:1.35}
.section-desc{font-size:15px;color:var(--c-ink-2);max-width:560px;line-height:1.8}
/* ---------- 分类页头 ---------- */
.cat-hero{position:relative;overflow:hidden;background:var(--c-surface-alt);border-bottom:1px solid var(--c-line);padding:52px 0 46px}
.cat-hero::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(135deg,rgba(15,122,90,.07) 0 2px,transparent 2px 16px);opacity:.75;pointer-events:none}
.cat-hero::after{content:"";position:absolute;width:420px;height:420px;border:1.5px dashed rgba(15,122,90,.16);border-radius:50%;right:-140px;bottom:-220px;pointer-events:none}
.cat-hero .container{position:relative;z-index:1}
.cat-hero-grid{display:grid;grid-template-columns:1.45fr .55fr;gap:44px;align-items:end}
.crumbs{font-size:13px;color:var(--c-ink-3);margin-bottom:16px}
.crumbs a{color:var(--c-ink-3)}
.crumbs a:hover{color:var(--c-primary)}
.crumbs .sep{margin:0 6px;color:#C3CCC7}
.crumbs .current{color:var(--c-ink);font-weight:700}
.cat-hero h1{font-size:38px;font-weight:800;letter-spacing:-.01em;line-height:1.3;margin-bottom:14px}
.cat-hero h1 .h1-mark{color:var(--c-primary)}
.cat-hero p.lead{font-size:15.5px;color:var(--c-ink-2);line-height:1.9;max-width:640px}
.cat-hero p.lead + p.lead{margin-top:8px}
.cat-stats{display:grid;gap:12px}
.cat-stat{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);padding:14px 18px;box-shadow:var(--sh-1)}
.cat-stat b{display:block;font-size:22px;font-weight:700;letter-spacing:-.02em;color:var(--c-primary-d)}
.cat-stat span{font-size:12.5px;color:var(--c-ink-3)}
/* ---------- 筛选条 ---------- */
.filter-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;padding:20px 0;border-bottom:1px solid var(--c-line)}
.filter-tags{display:flex;gap:10px;overflow-x:auto;padding-bottom:4px;scrollbar-width:none}
.filter-tags::-webkit-scrollbar{display:none}
.filter-tag{flex:0 0 auto;padding:8px 16px;border-radius:var(--r-pill);border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-ink-2);font-size:14px;font-weight:500;transition:all var(--ease)}
.filter-tag:hover{border-color:var(--c-primary);color:var(--c-primary-d)}
.filter-tag.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600}
.filter-right{display:flex;align-items:center;gap:12px;flex-shrink:0}
.filter-right label{font-size:13px;color:var(--c-ink-3)}
.sort-select{height:40px;padding:0 12px;border:1px solid var(--c-line);border-radius:var(--r-sm);background:var(--c-surface);color:var(--c-ink-2);font-size:14px}
/* ---------- 场景卡 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.scene-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:26px 22px;box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(15,122,90,.28)}
.scene-icon{width:44px;height:44px;border-radius:var(--r-md);display:grid;place-items:center;background:rgba(15,122,90,.1);color:var(--c-primary-d);font-size:19px;font-weight:800;margin-bottom:16px}
.scene-card h3{font-size:18px;font-weight:700;margin-bottom:8px}
.scene-card p{font-size:14px;color:var(--c-ink-2);line-height:1.8}
/* ---------- 精选专题横卡 ---------- */
.feature-list{display:grid;gap:22px}
.feature-card{display:grid;grid-template-columns:320px 1fr;gap:0;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease)}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.feature-media{position:relative;overflow:hidden;min-height:210px;background:var(--c-surface-alt)}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease}
.feature-card:hover .feature-media img{transform:scale(1.04)}
.feature-body{padding:26px 28px;display:flex;flex-direction:column;gap:10px}
.feature-body h3{font-size:21px;font-weight:700}
.feature-body p{font-size:14.5px;color:var(--c-ink-2);line-height:1.85}
.feature-meta{display:flex;align-items:center;gap:14px;margin-top:auto;padding-top:6px;font-size:12.5px;color:var(--c-ink-3)}
/* ---------- 列表卡片 ---------- */
.post-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(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease)}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.post-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--c-surface-alt)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease}
.post-card:hover .post-thumb img{transform:scale(1.03)}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{font-size:17.5px;font-weight:700;line-height:1.5}
.post-body h3 a{color:var(--c-ink)}
.post-body h3 a:hover{color:var(--c-primary);text-decoration:none}
.post-excerpt{font-size:14px;color:var(--c-ink-2);line-height:1.8;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-ink-3)}
.list-more{display:flex;flex-direction:column;align-items:center;gap:10px;margin-top:38px}
.list-more small{font-size:12.5px;color:var(--c-ink-3)}
.empty-state{min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-lg);padding:36px 24px;text-align:center}
.empty-state .empty-icon{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;background:rgba(15,122,90,.1);color:var(--c-primary-d);font-size:20px;font-weight:800}
.empty-state p{font-size:14.5px;color:var(--c-ink-2)}
/* ---------- 标签云 ---------- */
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px}
.tag-item{padding:8px 16px;border-radius:var(--r-pill);border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-ink-2);font-size:14px;transition:all var(--ease)}
.tag-item:hover{border-color:var(--c-primary);color:var(--c-primary-d);background:rgba(15,122,90,.06);text-decoration:none;transform:translateY(-2px)}
/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;align-items:start}
.faq-item{border:1px solid var(--c-line);border-radius:var(--r-md);background:var(--c-surface);margin-bottom:12px;overflow:hidden;transition:box-shadow var(--ease),border-color var(--ease)}
.faq-item.is-open{border-color:rgba(15,122,90,.3);box-shadow:var(--sh-1)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;background:none;border:0;text-align:left;font-size:16px;font-weight:600;color:var(--c-ink)}
.faq-q:hover{color:var(--c-primary-d)}
.faq-q .plus{flex:0 0 auto;width:22px;height:22px;position:relative;transition:transform var(--ease)}
.faq-q .plus::before,.faq-q .plus::after{content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);border-radius:2px;transform:translate(-50%,-50%)}
.faq-q .plus::before{width:13px;height:2px}
.faq-q .plus::after{width:2px;height:13px;transition:opacity var(--ease)}
.faq-item.is-open .faq-q .plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 280ms ease;background:rgba(242,246,243,.75);color:var(--c-ink-2);font-size:14.5px;line-height:1.85;padding:0 20px}
.faq-a p{padding-top:14px;padding-bottom:16px}
/* ---------- 频道矩阵 ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.channel-chip{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:16px 18px;border:1px solid var(--c-line);border-radius:var(--r-md);background:var(--c-surface);color:var(--c-ink);font-weight:600;font-size:15px;transition:all var(--ease)}
.channel-chip:hover{color:var(--c-primary-d);border-color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--sh-2);text-decoration:none}
.channel-chip em{font-style:normal;font-size:12px;font-weight:500;color:var(--c-ink-3)}
.channel-chip.is-current{background:rgba(15,122,90,.08);border-color:var(--c-primary);color:var(--c-primary-d)}
/* ---------- CTA 条 ---------- */
.cta-band{background:var(--c-dark);color:#fff;border-radius:var(--r-lg);padding:40px 44px;display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;box-shadow:var(--sh-2)}
.cta-band h2{font-size:26px;font-weight:700;color:#fff;margin-bottom:8px}
.cta-band p{font-size:14.5px;color:rgba(255,255,255,.78);line-height:1.8;max-width:520px}
.cta-form{display:flex;gap:10px;flex-wrap:wrap}
.cta-form input{height:48px;min-width:230px;padding:0 16px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.08);color:#fff;font-size:14.5px}
.cta-form input::placeholder{color:rgba(255,255,255,.55)}
.cta-form input:focus{outline:2px solid var(--c-sun);outline-offset:2px}
/* ---------- Footer ---------- */
.site-footer{background:var(--c-dark);color:#fff;padding:60px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand strong{font-size:16.5px;font-weight:800;color:#fff}
.footer-col p{font-size:13.5px;color:rgba(255,255,255,.68);line-height:1.85}
.footer-col h4{font-size:14.5px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:13.5px;color:rgba(255,255,255,.72)}
.footer-col ul a:hover{color:var(--c-sun);text-decoration:none}
.social-row{display:flex;gap:10px;margin-top:16px}
.social-row span{font-size:12.5px;color:rgba(255,255,255,.7);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-pill);padding:5px 12px}
.sub-form{display:flex;gap:8px;margin-bottom:10px}
.sub-form input{flex:1;min-width:0;height:42px;padding:0 12px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.08);color:#fff;font-size:13.5px}
.sub-form input::placeholder{color:rgba(255,255,255,.5)}
.sub-form button{height:42px;padding:0 16px;border:0;border-radius:var(--r-sm);background:var(--c-accent);color:#fff;font-size:13.5px;font-weight:600;transition:background var(--ease)}
.sub-form button:hover{background:var(--c-accent-d)}
.sub-note{font-size:12.5px;color:rgba(255,255,255,.6);line-height:1.7;margin-bottom:10px}
.sub-check{display:flex;align-items:flex-start;gap:8px;font-size:12px;color:rgba(255,255,255,.62);line-height:1.6}
.sub-check input{margin-top:4px}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);font-size:12.5px;color:rgba(255,255,255,.6)}
.footer-bottom .links{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom .links a{color:rgba(255,255,255,.7)}
.footer-bottom .links a:hover{color:var(--c-sun);text-decoration:none}
/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .main-nav{gap:14px}
  .main-nav a{font-size:14px}
  .cat-hero h1{font-size:34px}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .channel-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-toggle{display:flex}
  .city-picker{display:none}
  .main-nav{position:absolute;top:100%;left:0;right:0;display:none;flex-direction:column;align-items:stretch;gap:4px;margin-top:10px;padding:14px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--sh-3)}
  .main-nav.is-open{display:flex}
  .main-nav a{padding:10px 12px;border-radius:var(--r-sm)}
  .main-nav a.active{background:var(--c-surface-alt)}
  .main-nav a.active::after{display:none}
  .cat-hero-grid{grid-template-columns:1fr;gap:28px;align-items:start}
  .cat-stats{grid-template-columns:repeat(3,1fr)}
  .section{padding:56px 0}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .feature-card{grid-template-columns:240px 1fr}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{grid-template-columns:1fr;padding:32px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .header-inner{height:56px;gap:12px}
  .brand-mark{width:34px;height:34px;font-size:16px;border-radius:10px}
  .brand-text strong{font-size:15px}
  .brand-text em{font-size:10.5px;letter-spacing:.02em}
  .cat-hero{padding:36px 0 34px}
  .cat-hero h1{font-size:27px}
  .cat-hero::after{display:none}
  .cat-hero p.lead{font-size:14.5px}
  .cat-stats{grid-template-columns:1fr}
  .section{padding:44px 0}
  .section-title{font-size:24px}
  .scene-grid{grid-template-columns:1fr;gap:16px}
  .post-grid{grid-template-columns:1fr;gap:16px}
  .feature-card{grid-template-columns:1fr}
  .feature-media{min-height:180px;aspect-ratio:16/9}
  .feature-body{padding:20px}
  .channel-grid{grid-template-columns:repeat(2,1fr)}
  .filter-bar{gap:14px}
  .filter-right{width:100%;justify-content:space-between}
  .faq-q{font-size:15px;padding:16px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-form{width:100%}
  .cta-form input{min-width:0;flex:1}
}
@media (max-width:419px){
  .container{padding:0 14px}
  .cat-hero h1{font-size:24px}
  .section-title{font-size:21px}
  .channel-grid{grid-template-columns:1fr}
  .btn{height:44px;padding:0 18px;font-size:14px}
  .btn-sm{height:36px;padding:0 14px;font-size:13px}
}