/* roulang page: index */
:root{
  --brand:#21618C;
  --brand-strong:#17456A;
  --accent:#FF6B4A;
  --ink:#16212B;
  --ink-2:#5A6B7B;
  --ink-3:#8A99A8;
  --bg:#F7F9FC;
  --surface:#FFFFFF;
  --bg-tint:#EAF1F7;
  --line:#E2E9F0;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(22,33,43,.05);
  --sh-2:0 2px 6px rgba(22,33,43,.05),0 12px 28px rgba(22,33,43,.07);
  --sh-3:0 6px 14px rgba(22,33,43,.08),0 20px 40px rgba(33,97,140,.10);
  --bs-gutter-x:24px;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-strong);text-decoration:underline}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:.2px}
h1{font-size:40px;line-height:1.25;font-weight:700}
h2{font-size:30px;line-height:1.35;font-weight:700}
h3{font-size:20px;line-height:1.5;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(33,97,140,.28);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;width:100%}
.section{padding:88px 0}
.section--tint{background:var(--bg-tint)}
.section--white{background:var(--surface)}
.section--plain{background:var(--bg)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head .eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--brand);background:rgba(33,97,140,.09);border-radius:var(--r-pill);padding:5px 14px;margin-bottom:14px}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;flex-wrap:wrap}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);backdrop-filter:saturate(140%) blur(6px);
}
.nav-toolbar{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}
.brand:hover{text-decoration:none}
.brand-mark{width:34px;height:34px;border-radius:11px;background:linear-gradient(140deg,var(--brand),#3d8dbd);display:flex;align-items:center;justify-content:center;gap:3px;box-shadow:var(--sh-1)}
.brand-mark i{display:block;width:3px;border-radius:2px;background:#fff}
.brand-mark i:nth-child(1){height:10px;opacity:.6}
.brand-mark i:nth-child(2){height:17px}
.brand-mark i:nth-child(3){height:13px;opacity:.8}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.4px}
.brand-text small{font-size:12px;color:var(--ink-3);letter-spacing:.2px}
.nav-seg{
  display:flex;align-items:center;gap:2px;margin:0 auto;
  background:#F1F5F9;border:1px solid var(--line);border-radius:var(--r-pill);padding:4px;
}
.seg-item{
  display:inline-block;padding:7px 16px;font-size:14px;font-weight:500;color:var(--ink-2);
  border-radius:var(--r-pill);transition:background .18s ease,color .18s ease;white-space:nowrap;
}
.seg-item:hover{background:#E3ECF4;color:var(--brand);text-decoration:none}
.seg-item.is-active{background:var(--brand);color:#fff;font-weight:600;box-shadow:0 2px 6px rgba(33,97,140,.28)}
.seg-item.is-active:hover{background:var(--brand-strong);color:#fff}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-status{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--ink-3)}
.nav-status i{width:8px;height:8px;border-radius:50%;background:#34C77B;box-shadow:0 0 0 3px rgba(52,199,123,.16);display:block}
.icon-btn{
  position:relative;width:36px;height:36px;border-radius:50%;border:1px solid var(--line);
  background:#fff;color:var(--ink-2);display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all .18s ease;
}
.icon-btn:hover{color:var(--brand);border-color:rgba(33,97,140,.35);background:#F4F8FB}
.icon-btn::after{content:"";position:absolute;top:7px;right:8px;width:6px;height:6px;border-radius:50%;background:var(--accent)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;font-size:15px;font-weight:600;border-radius:var(--r-sm);
  border:1px solid transparent;cursor:pointer;transition:all .18s ease;text-decoration:none;line-height:1.4;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 2px 8px rgba(33,97,140,.24)}
.btn-primary:hover{background:var(--brand-strong);color:#fff;transform:translateY(-1px);box-shadow:0 6px 16px rgba(33,97,140,.28)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:#fff;color:var(--ink);border-color:var(--line);box-shadow:var(--sh-1)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);background:#F6FAFD}
.btn-ghost{background:transparent;color:var(--brand)}
.btn-ghost:hover{background:rgba(33,97,140,.08);color:var(--brand-strong)}
.btn-sm{padding:8px 16px;font-size:14px}
.btn-block{width:100%}
.hamburger{
  display:none;width:38px;height:38px;border-radius:var(--r-sm);border:1px solid var(--line);
  background:#fff;color:var(--ink);align-items:center;justify-content:center;cursor:pointer;font-size:18px;
}
.drawer{display:none}
.drawer.open{display:block}
@media (max-width:991.98px){
  .nav-seg{display:none}
  .nav-status{display:none}
  .hamburger{display:inline-flex}
}
@media (max-width:575.98px){
  .nav-download{display:none}
  .nav-toolbar{gap:12px}
}

/* 移动抽屉 */
.drawer-panel{
  border-top:1px solid var(--line);background:#fff;box-shadow:var(--sh-2);
  padding:12px 0 18px;
}
.drawer-panel a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 24px;font-size:16px;color:var(--ink);font-weight:500;
}
.drawer-panel a:hover{background:#F4F8FB;color:var(--brand);text-decoration:none}
.drawer-panel a .bi{color:var(--ink-3);font-size:14px}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;background:var(--bg-tint);
  padding:72px 0 64px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/e4c8c2a2dd04b8e0.jpg') center/cover no-repeat;
  opacity:.16;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(247,249,252,.96) 42%,rgba(234,241,247,.62) 100%);
}
.hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);padding:6px 14px;box-shadow:var(--sh-1);
}
.hero-kicker .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);display:block}
.hero h1{margin:20px 0 16px;max-width:15em}
.hero-sub{font-size:18px;font-weight:600;color:var(--brand-strong);margin-bottom:14px}
.hero-desc{color:var(--ink-2);font-size:16px;max-width:38em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:28px;margin-top:36px;padding-top:24px;border-top:1px dashed rgba(33,97,140,.22);
}
.hero-facts div{display:flex;flex-direction:column}
.hero-facts strong{
  font-size:30px;font-weight:700;color:var(--brand);
  font-variant-numeric:tabular-nums;line-height:1.1;
}
.hero-facts span{font-size:13px;color:var(--ink-3);margin-top:4px}
.hero-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);padding:22px;position:relative;
}
.hero-panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.hero-panel-head strong{font-size:15px;font-weight:600}
.hero-panel-head em{
  font-style:normal;font-size:12px;font-weight:600;color:var(--accent);
  background:rgba(255,107,74,.12);border-radius:var(--r-pill);padding:4px 10px;
}
.run-card{
  border:1px solid var(--line);border-radius:var(--r-md);padding:14px 16px;background:#FBFDFF;
  display:flex;align-items:center;gap:12px;margin-bottom:12px;transition:all .18s ease;
}
.run-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:rgba(33,97,140,.28)}
.run-card .ico{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;background:rgba(33,97,140,.1);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:17px;
}
.run-card b{display:block;font-size:14px;font-weight:600;color:var(--ink)}
.run-card small{display:block;font-size:12px;color:var(--ink-3);margin-top:2px}
.run-card .pace{
  margin-left:auto;font-size:12px;font-weight:600;color:var(--brand);
  background:rgba(33,97,140,.09);border-radius:var(--r-pill);padding:4px 10px;white-space:nowrap;
}
.hero-panel-foot{display:flex;gap:10px;margin-top:6px}
.hero-panel-foot .btn{flex:1}
.hero-float{
  position:absolute;right:-14px;bottom:-18px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--sh-3);padding:12px 16px;display:flex;align-items:center;gap:10px;
}
.hero-float i{color:var(--accent);font-size:18px}
.hero-float span{font-size:12px;color:var(--ink-2);line-height:1.4}
.hero-float b{display:block;font-size:14px;color:var(--ink)}
@media (max-width:991.98px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-float{position:static;margin-top:14px;box-shadow:var(--sh-1)}
  .hero h1{max-width:none}
}
@media (max-width:575.98px){
  .hero{padding:48px 0 44px}
  h1{font-size:30px}
  h2{font-size:24px}
  .hero-actions .btn{width:100%}
  .hero-facts{gap:20px}
}

/* ============ 下载区 ============ */
.download-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.dl-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 24px;box-shadow:var(--sh-2);transition:all .2s ease;display:flex;flex-direction:column;
}
.dl-card:hover{box-shadow:var(--sh-3);transform:translateY(-3px);border-color:rgba(33,97,140,.3)}
.dl-card .dl-ico{
  width:46px;height:46px;border-radius:14px;background:rgba(33,97,140,.1);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:16px;
}
.dl-card h3{font-size:18px;margin-bottom:8px}
.dl-card p{font-size:14px;color:var(--ink-2);margin-bottom:18px;flex:1}
.dl-card .file-tag{
  font-size:12px;color:var(--ink-3);margin-top:12px;letter-spacing:.4px;
  font-variant-numeric:tabular-nums;
}
@media (max-width:991.98px){.download-grid{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.download-grid{grid-template-columns:1fr}}

/* ============ 卖点三连 ============ */
.tri-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tri-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:28px;box-shadow:var(--sh-2);transition:all .2s ease;
}
.tri-card:hover{box-shadow:var(--sh-3);transform:translateY(-3px)}
.tri-card .num{
  font-size:13px;font-weight:700;color:var(--accent);letter-spacing:1px;
  font-variant-numeric:tabular-nums;
}
.tri-card h3{margin:12px 0 10px}
.tri-card p{color:var(--ink-2);font-size:15px}
@media (max-width:991.98px){.tri-grid{grid-template-columns:1fr}}

/* ============ 入口矩阵 ============ */
.tool-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.tool-cell{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px 20px 22px 22px;box-shadow:var(--sh-1);transition:all .2s ease;overflow:hidden;
  display:block;color:inherit;
}
.tool-cell::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:var(--brand);opacity:0;transition:opacity .2s ease;
}
.tool-cell:hover{transform:translateY(-4px);box-shadow:var(--sh-3);text-decoration:none;color:inherit}
.tool-cell:hover::before{opacity:1}
.tool-cell .bi-arrow-up-right{
  position:absolute;top:16px;right:16px;font-size:14px;color:var(--ink-3);transition:all .2s ease;
}
.tool-cell:hover .bi-arrow-up-right{color:var(--brand);transform:translate(2px,-2px)}
.tool-cell .t-ico{
  width:40px;height:40px;border-radius:12px;background:rgba(33,97,140,.09);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:14px;
}
.tool-cell h3{font-size:15px;margin-bottom:6px}
.tool-cell p{font-size:13px;color:var(--ink-3);line-height:1.6}
@media (max-width:1199.98px){.tool-grid{grid-template-columns:repeat(3,1fr)}}
@media (max-width:767.98px){.tool-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:479.98px){.tool-grid{grid-template-columns:1fr}}

/* ============ 跑点地图 ============ */
.map-grid{display:grid;grid-template-columns:320px 1fr;gap:32px;align-items:start}
.map-tags{display:flex;flex-direction:column;gap:10px}
.map-tag{
  display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-sm);padding:14px 16px;font-size:14px;font-weight:500;color:var(--ink);
  box-shadow:var(--sh-1);transition:all .18s ease;cursor:default;
}
.map-tag:hover{border-color:rgba(33,97,140,.34);color:var(--brand);transform:translateX(3px)}
.map-tag .bi{color:var(--brand);font-size:16px}
.map-tag span{margin-left:auto;font-size:12px;color:var(--ink-3);font-weight:400}
.map-stage{
  position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-2);background:#DCE8F2;aspect-ratio:16/9;
}
.map-stage img{width:100%;height:100%;object-fit:cover}
.map-stage::after{
  content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(33,97,140,.06),rgba(33,97,140,.24));
}
.pin{
  position:absolute;z-index:3;background:#fff;border-radius:var(--r-pill);padding:5px 12px;
  font-size:12px;font-weight:600;color:var(--brand);box-shadow:var(--sh-2);white-space:nowrap;
  display:flex;align-items:center;gap:6px;
}
.pin i{width:7px;height:7px;border-radius:50%;background:var(--accent);display:block}
.pin.p1{left:12%;top:26%}
.pin.p2{left:46%;top:56%}
.pin.p3{left:68%;top:22%}
.pin.p4{left:30%;top:74%}
.map-caption{
  position:absolute;left:16px;bottom:16px;z-index:3;background:rgba(255,255,255,.94);
  border-radius:var(--r-sm);padding:10px 14px;font-size:13px;color:var(--ink-2);max-width:70%;
  box-shadow:var(--sh-1);
}
@media (max-width:991.98px){
  .map-grid{grid-template-columns:1fr}
  .map-tags{flex-direction:row;flex-wrap:wrap}
  .map-tag{flex:1 1 45%}
}
@media (max-width:575.98px){
  .map-stage{aspect-ratio:4/3}
  .map-tag{flex:1 1 100%}
  .pin{font-size:11px;padding:4px 9px}
}

/* ============ 流程步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.step{position:relative;padding-top:8px}
.step .badge-num{
  width:44px;height:44px;border-radius:50%;background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;
  box-shadow:0 4px 12px rgba(33,97,140,.28);font-variant-numeric:tabular-nums;margin-bottom:18px;
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;color:var(--ink-2)}
.step::after{
  content:"";position:absolute;top:30px;left:56px;right:-12px;height:0;
  border-top:2px dashed rgba(33,97,140,.26);
}
.step:last-child::after{display:none}
@media (max-width:991.98px){
  .steps{grid-template-columns:1fr;gap:20px}
  .step{display:grid;grid-template-columns:44px 1fr;column-gap:16px;padding-top:0}
  .step .badge-num{margin-bottom:0;grid-row:span 2}
  .step::after{display:none}
}

/* ============ 专题墙 ============ */
.topic-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.topic-card{
  position:relative;border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);
  background:var(--surface);box-shadow:var(--sh-2);transition:all .22s ease;display:block;color:inherit;
}
.topic-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);text-decoration:none;color:inherit}
.topic-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#DDE7F0}
.topic-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.topic-card:hover .topic-thumb img{transform:scale(1.04)}
.topic-thumb .badge{
  position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);color:var(--brand);
  font-size:12px;font-weight:600;border-radius:var(--r-pill);padding:5px 12px;box-shadow:var(--sh-1);
}
.topic-body{padding:22px}
.topic-body h3{font-size:19px;margin-bottom:8px}
.topic-body p{font-size:14px;color:var(--ink-2)}
.topic-body .more{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:14px;font-weight:600;color:var(--brand);
}
.topic-card:hover .more{color:var(--brand-strong)}
@media (max-width:991.98px){.topic-grid{grid-template-columns:1fr}}

/* ============ 资讯列表（CMS） ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh-2);transition:all .2s ease;display:flex;flex-direction:column;height:100%;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:rgba(33,97,140,.24)}
.news-card h3{font-size:17px;line-height:1.55;margin-bottom:10px}
.news-card h3 a{color:var(--ink)}
.news-card h3 a:hover{color:var(--brand);text-decoration:none}
.news-card p{font-size:14px;color:var(--ink-2);flex:1}
.news-meta{
  display:flex;align-items:center;gap:10px;margin-top:18px;padding-top:14px;
  border-top:1px solid var(--line);font-size:12px;color:var(--ink-3);
}
.news-meta .tag{
  background:rgba(33,97,140,.09);color:var(--brand);border-radius:var(--r-pill);
  padding:3px 10px;font-weight:600;
}
.news-meta time{margin-left:auto;font-variant-numeric:tabular-nums}
.news-empty{
  background:var(--surface);border:1px dashed rgba(33,97,140,.3);border-radius:var(--r-md);
  padding:56px 24px;text-align:center;color:var(--ink-3);
}
.news-empty .bi{font-size:30px;color:rgba(33,97,140,.4);display:block;margin-bottom:12px}
.news-empty p{font-size:15px}
@media (max-width:991.98px){.news-grid{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.news-grid{grid-template-columns:1fr}}

/* ============ 数据指标条 ============ */
.stat-band{
  background:linear-gradient(120deg,#1C5880,#21618C 55%,#2C7BA8);
  border-radius:var(--r-lg);padding:44px 24px;color:#fff;box-shadow:var(--sh-3);
}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat-grid strong{
  display:block;font-size:40px;font-weight:700;line-height:1.1;color:#fff;
  font-variant-numeric:tabular-nums;
}
.stat-grid strong em{font-style:normal;font-size:18px;margin-left:2px;color:#BBD8EC}
.stat-grid span{display:block;margin-top:8px;font-size:13px;color:rgba(255,255,255,.72)}
@media (max-width:767.98px){
  .stat-grid{grid-template-columns:1fr 1fr;gap:28px 16px}
  .stat-grid strong{font-size:32px}
}

/* ============ 安全体系 ============ */
.safety-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.safety-list{display:grid;gap:14px}
.safety-item{
  display:flex;gap:14px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-sm);padding:16px 18px;box-shadow:var(--sh-1);transition:all .18s ease;
}
.safety-item:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.safety-item .s-ico{
  width:36px;height:36px;flex:0 0 36px;border-radius:11px;background:rgba(33,97,140,.1);
  color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:16px;
}
.safety-item b{display:block;font-size:15px;font-weight:600;margin-bottom:2px}
.safety-item p{font-size:13px;color:var(--ink-2)}
.safety-visual{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px;box-shadow:var(--sh-2);text-align:center;
}
.shield-badge{
  width:110px;height:110px;margin:0 auto 22px;border-radius:32px;
  background:linear-gradient(150deg,rgba(33,97,140,.14),rgba(33,97,140,.05));
  display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:44px;
  border:1px solid rgba(33,97,140,.16);
}
.safety-chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.safety-chips span{
  font-size:13px;font-weight:600;color:var(--brand);background:rgba(33,97,140,.08);
  border-radius:var(--r-pill);padding:6px 14px;
}
.safety-visual p{font-size:14px;color:var(--ink-2);margin-top:18px}
@media (max-width:991.98px){.safety-grid{grid-template-columns:1fr;gap:32px}}

/* ============ 跑友画像 ============ */
.persona-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.persona{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:24px;
  box-shadow:var(--sh-1);transition:all .2s ease;
}
.persona:hover{box-shadow:var(--sh-3);transform:translateY(-3px)}
.persona .p-avatar{
  width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:20px;color:#fff;margin-bottom:14px;
  background:linear-gradient(140deg,var(--brand),#4795C4);
}
.persona:nth-child(2) .p-avatar{background:linear-gradient(140deg,#2C7BA8,#63ADD6)}
.persona:nth-child(3) .p-avatar{background:linear-gradient(140deg,#FF6B4A,#FF9A7E)}
.persona:nth-child(4) .p-avatar{background:linear-gradient(140deg,#17456A,#3C7FA6)}
.persona h3{font-size:16px;margin-bottom:6px}
.persona p{font-size:13px;color:var(--ink-2)}
.persona .pace-tag{
  display:inline-block;margin-top:14px;font-size:12px;font-weight:600;color:var(--accent);
  background:rgba(255,107,74,.1);border-radius:var(--r-pill);padding:4px 12px;
}
@media (max-width:991.98px){.persona-grid{grid-template-columns:1fr 1fr}}
@media (max-width:575.98px){.persona-grid{grid-template-columns:1fr}}

/* ============ 权益对比 ============ */
.plan-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;max-width:900px;margin:0 auto}
.plan-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:30px 26px;box-shadow:var(--sh-2);position:relative;transition:all .2s ease;
}
.plan-card:hover{box-shadow:var(--sh-3);transform:translateY(-3px)}
.plan-card.pro{border:2px solid var(--brand);box-shadow:var(--sh-3)}
.plan-card .rec{
  position:absolute;top:-13px;right:22px;background:var(--accent);color:#fff;font-size:12px;font-weight:700;
  border-radius:var(--r-pill);padding:4px 14px;box-shadow:0 4px 10px rgba(255,107,74,.32);
}
.plan-card h3{font-size:19px;margin-bottom:6px}
.plan-card .plan-note{font-size:13px;color:var(--ink-3);margin-bottom:20px}
.plan-list{display:grid;gap:12px}
.plan-list li{display:flex;gap:10px;font-size:14px;color:var(--ink-2);line-height:1.65}
.plan-list li .bi-check2{color:var(--brand);font-weight:700;margin-top:3px}
.plan-list li.muted{color:var(--ink-3)}
.plan-list li.muted .bi-dash{color:var(--ink-3);margin-top:3px}
@media (max-width:767.98px){.plan-grid{grid-template-columns:1fr}}
.plan-foot{font-size:12px;color:var(--ink-3);text-align:center;margin-top:20px}

/* ============ 社区公约 ============ */
.rules-list{display:grid;gap:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-2)}
.rule-row{display:grid;grid-template-columns:64px 1fr;gap:8px;padding:20px 24px;border-bottom:1px solid var(--line);transition:background .18s ease}
.rule-row:last-child{border-bottom:0}
.rule-row:hover{background:#F7FBFE}
.rule-row .r-num{
  font-size:20px;font-weight:700;color:rgba(33,97,140,.35);font-variant-numeric:tabular-nums;line-height:1.3;
}
.rule-row b{display:block;font-size:15px;font-weight:600;margin-bottom:2px}
.rule-row p{font-size:14px;color:var(--ink-2)}
@media (max-width:575.98px){.rule-row{grid-template-columns:44px 1fr;padding:16px}}

/* ============ 新手入门 ============ */
.start-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.start-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:26px;
  box-shadow:var(--sh-1);transition:all .2s ease;
}
.start-card:hover{box-shadow:var(--sh-3);transform:translateY(-3px)}
.start-card .s-step{
  display:inline-block;font-size:12px;font-weight:700;color:var(--brand);background:rgba(33,97,140,.09);
  border-radius:var(--r-pill);padding:4px 12px;margin-bottom:12px;
}
.start-card h3{font-size:17px;margin-bottom:8px}
.start-card p{font-size:14px;color:var(--ink-2)}
@media (max-width:991.98px){.start-grid{grid-template-columns:1fr}}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-2);overflow:hidden;
}
.faq-item+.faq-item{border-top:1px solid var(--line)}
.faq-btn{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:0;text-align:left;padding:20px 24px;font-size:16px;font-weight:600;color:var(--ink);
  cursor:pointer;transition:color .18s ease,background .18s ease;
}
.faq-btn:hover{color:var(--brand);background:#F8FBFD}
.faq-btn[aria-expanded="true"]{color:var(--brand)}
.faq-btn .bi{font-size:14px;color:var(--ink-3);transition:transform .22s ease,color .18s ease;flex:0 0 auto}
.faq-btn[aria-expanded="true"] .bi{transform:rotate(180deg);color:var(--brand)}
.faq-body{padding:0 24px 22px;font-size:15px;color:var(--ink-2);line-height:1.85}
@media (max-width:575.98px){
  .faq-btn{padding:16px 18px;font-size:15px}
  .faq-body{padding:0 18px 18px;font-size:14px}
}

/* ============ 收口 CTA ============ */
.final-cta{
  background:linear-gradient(120deg,#1C5880,#21618C 60%,#2E81AE);
  border-radius:var(--r-lg);padding:52px 44px;color:#fff;display:grid;
  grid-template-columns:1.15fr .85fr;gap:32px;align-items:center;box-shadow:var(--sh-3);
}
.final-cta h2{color:#fff;font-size:30px}
.final-cta p{color:rgba(255,255,255,.82);font-size:15px;margin-top:14px;max-width:34em}
.final-actions{display:flex;flex-direction:column;gap:12px}
.final-actions .btn{background:#fff;color:var(--brand);font-weight:600}
.final-actions .btn:hover{background:#EAF4FB;color:var(--brand-strong);transform:translateY(-1px)}
.final-actions .btn.alt{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.4)}
.final-actions .btn.alt:hover{background:rgba(255,255,255,.24);color:#fff}
.guarantee-bar{
  margin-top:24px;display:flex;flex-wrap:wrap;justify-content:center;gap:12px 32px;
  font-size:13px;color:var(--ink-2);
}
.guarantee-bar span{display:inline-flex;align-items:center;gap:8px}
.guarantee-bar .bi{color:var(--brand)}
@media (max-width:991.98px){
  .final-cta{grid-template-columns:1fr;padding:36px 24px}
  .final-cta h2{font-size:24px}
}
@media (max-width:575.98px){
  .final-actions .btn{width:100%}
}

/* ============ 页脚 ============ */
.site-footer{background:#101B24;color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text small{color:rgba(255,255,255,.5)}
.footer-brand .brand-mark{background:linear-gradient(140deg,#2E81AE,#63ADD6)}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:26em}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.4px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66)}
.footer-col a:hover{color:#8FC6E6;text-decoration:none}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;align-items:center;
  font-size:13px;color:rgba(255,255,255,.46);
}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social span{
  width:32px;height:32px;border-radius:9px;background:rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.7);font-size:14px;
  transition:all .18s ease;
}
.footer-social span:hover{background:rgba(255,255,255,.16);color:#fff}
@media (max-width:991.98px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px}}
@media (max-width:575.98px){.footer-grid{grid-template-columns:1fr}}

/* ============ 移动端底部工具栏 ============ */
.mobile-tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:1100;height:56px;
  background:rgba(255,255,255,.98);border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);box-shadow:0 -2px 10px rgba(22,33,43,.06);
}
.mobile-tabbar ul{display:flex;height:56px}
.mobile-tabbar li{flex:1}
.mobile-tabbar a{
  display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;
  font-size:11px;color:var(--ink-3);gap:3px;text-decoration:none;
}
.mobile-tabbar a .bi{font-size:17px}
.mobile-tabbar a.is-active{color:var(--brand);font-weight:600}
.mobile-tabbar a:hover{text-decoration:none;color:var(--brand)}
@media (max-width:767.98px){
  .mobile-tabbar{display:block}
  body{padding-bottom:56px}
  .section{padding:56px 0}
  .container{padding-left:16px;padding-right:16px}
  .footer-bottom{padding-bottom:20px}
}

/* roulang page: article */
:root{
  --brand:#21618C;
  --brand-strong:#17456A;
  --accent:#FF6B4A;
  --ink:#16212B;
  --ink-2:#5A6B7B;
  --ink-3:#8A99A8;
  --bg:#F7F9FC;
  --surface:#FFFFFF;
  --bg-tint:#EAF1F7;
  --line:#E2E9F0;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(22,33,43,.05);
  --sh-2:0 2px 6px rgba(22,33,43,.05),0 12px 28px rgba(22,33,43,.07);
  --sh-3:0 6px 14px rgba(22,33,43,.08),0 20px 40px rgba(33,97,140,.10);
  --bs-gutter-x:24px;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-strong);text-decoration:underline}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 16px}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink)}
.container{max-width:1200px;width:100%;margin:0 auto;padding-left:24px;padding-right:24px}
.section{padding:88px 0}
.section--tint{background:var(--bg-tint)}
.section--white{background:var(--surface)}
.section--plain{background:var(--bg)}
.section-head{max-width:760px;margin-bottom:36px}
.section-head .eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--brand);background:rgba(33,97,140,.09);border-radius:var(--r-pill);padding:5px 14px;margin-bottom:14px}
.section-head h2{font-size:30px;line-height:1.35}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px}
/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);backdrop-filter:saturate(140%) blur(6px);
}
.nav-toolbar{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}
.brand:hover{text-decoration:none}
.brand-mark{width:34px;height:34px;border-radius:11px;background:linear-gradient(140deg,var(--brand),#3d8dbd);display:flex;align-items:center;justify-content:center;gap:3px;box-shadow:var(--sh-1)}
.brand-mark i{display:block;width:3px;border-radius:2px;background:#fff}
.brand-mark i:nth-child(1){height:10px;opacity:.6}
.brand-mark i:nth-child(2){height:17px}
.brand-mark i:nth-child(3){height:13px;opacity:.8}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.4px}
.brand-text small{font-size:12px;color:var(--ink-3);letter-spacing:.2px}
.nav-seg{
  display:flex;align-items:center;gap:2px;margin:0 auto;
  background:#F1F5F9;border:1px solid var(--line);border-radius:var(--r-pill);padding:4px;
}
.seg-item{
  display:inline-block;padding:7px 16px;font-size:14px;font-weight:500;color:var(--ink-2);
  border-radius:var(--r-pill);transition:background .18s ease,color .18s ease;white-space:nowrap;
}
.seg-item:hover{background:#E3ECF4;color:var(--brand);text-decoration:none}
.seg-item.is-active{background:var(--brand);color:#fff;font-weight:600;box-shadow:0 2px 6px rgba(33,97,140,.28)}
.seg-item.is-active:hover{background:var(--brand-strong);color:#fff}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto;margin-left:auto}
.nav-status{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--ink-3)}
.nav-status i{width:8px;height:8px;border-radius:50%;background:#34C77B;box-shadow:0 0 0 3px rgba(52,199,123,.16);display:block}
.icon-btn{
  position:relative;width:36px;height:36px;border-radius:50%;border:1px solid var(--line);
  background:#fff;color:var(--ink-2);display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all .18s ease;
}
.icon-btn:hover{color:var(--brand);border-color:rgba(33,97,140,.35);background:#F4F8FB}
.icon-btn::after{content:"";position:absolute;top:7px;right:8px;width:6px;height:6px;border-radius:50%;background:var(--accent)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;font-size:15px;font-weight:600;border-radius:var(--r-sm);
  border:1px solid transparent;cursor:pointer;transition:all .18s ease;text-decoration:none;line-height:1.4;
}
.btn:hover{text-decoration:none}
.btn:focus-visible{outline:3px solid rgba(33,97,140,.28);outline-offset:2px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 2px 8px rgba(33,97,140,.24)}
.btn-primary:hover{background:var(--brand-strong);color:#fff;transform:translateY(-1px);box-shadow:0 6px 16px rgba(33,97,140,.28)}
.btn-outline{background:#fff;color:var(--ink);border-color:var(--line);box-shadow:var(--sh-1)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);background:#F6FAFD}
.btn-sm{padding:8px 16px;font-size:14px}
.hamburger{
  display:none;width:38px;height:38px;border-radius:var(--r-sm);border:1px solid var(--line);
  background:#fff;color:var(--ink);align-items:center;justify-content:center;cursor:pointer;font-size:18px;
}
.drawer{display:none}
.drawer.open{display:block}
.drawer-panel{border-top:1px solid var(--line);background:#fff;box-shadow:var(--sh-2);padding:12px 0 18px}
.drawer-panel a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 24px;font-size:16px;color:var(--ink);font-weight:500;
}
.drawer-panel a:hover{background:#F4F8FB;color:var(--brand);text-decoration:none}
.drawer-panel a .bi{color:var(--ink-3);font-size:14px}
/* ============ 文章标题区 ============ */
.article-head{
  position:relative;overflow:hidden;background:var(--bg-tint);
  padding:56px 0 44px;border-bottom:1px solid var(--line);
}
.article-head::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/50ca07820ef633cd.webp') center/cover no-repeat;
  opacity:.12;
}
.article-head::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(247,249,252,.97) 46%,rgba(234,241,247,.72) 100%);
}
.article-head .container{position:relative;z-index:2}
.head-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.head-tag{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;
  color:var(--brand);background:rgba(33,97,140,.10);border-radius:var(--r-pill);padding:5px 14px;
}
.head-tag--accent{color:#B8432A;background:rgba(255,107,74,.13)}
.article-head h1{
  font-size:40px;line-height:1.28;letter-spacing:-.4px;max-width:900px;
  overflow-wrap:break-word;word-break:break-word;
}
.head-meta{
  display:flex;align-items:center;gap:22px;flex-wrap:wrap;
  margin-top:22px;padding-top:20px;border-top:1px solid rgba(22,33,43,.08);
  font-size:14px;color:var(--ink-2);
}
.head-meta span{display:inline-flex;align-items:center;gap:7px}
.head-meta .bi{color:var(--brand);font-size:15px}
/* ============ 面包屑 ============ */
.crumb-bar{background:var(--surface);border-bottom:1px solid var(--line)}
.crumb-row{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 0;font-size:14px;color:var(--ink-2);flex-wrap:wrap;
}
.crumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.crumb a{color:var(--ink-2)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--ink-3)}
.crumb .current{color:var(--ink);font-weight:600;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:inline-block;vertical-align:bottom}
.crumb-back{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--brand);white-space:nowrap}
.crumb-back .bi{font-size:13px;transition:transform .18s ease}
.crumb-back:hover .bi{transform:translateX(-3px)}
/* ============ 正文布局 ============ */
.article-main{padding:56px 0 72px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:48px;align-items:start}
.article-body{
  max-width:760px;font-size:17px;line-height:1.95;color:#243240;
  overflow-wrap:break-word;word-break:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 22px}
.article-body h2{
  font-size:26px;line-height:1.42;margin:44px 0 16px;font-weight:700;
  padding-left:14px;border-left:4px solid var(--brand);
}
.article-body h3{font-size:20px;line-height:1.5;margin:32px 0 12px;font-weight:600;color:var(--ink)}
.article-body h4{font-size:17px;margin:24px 0 10px;font-weight:600}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:24px;list-style:revert}
.article-body li{margin-bottom:10px}
.article-body blockquote{
  margin:28px 0;padding:18px 22px;background:var(--bg-tint);
  border-left:4px solid var(--brand);border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);margin:26px 0;width:100%;box-shadow:var(--sh-1)}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-strong)}
.article-body strong{font-weight:600;color:var(--ink)}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;background:#fff;border-radius:var(--r-sm);overflow:hidden}
.article-body th,.article-body td{padding:12px 14px;border:1px solid var(--line);text-align:left}
.article-body th{background:var(--bg-tint);font-weight:600}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}
.article-body code{background:#F1F5F9;border-radius:6px;padding:2px 6px;font-size:14px}
/* 空态 */
.empty-state{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-2);padding:56px 32px;text-align:center;
}
.empty-state .bi{font-size:40px;color:var(--ink-3);display:block;margin-bottom:16px}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--ink-2);margin-bottom:22px}
/* ============ 侧栏 ============ */
.article-side{position:relative}
.side-sticky{position:sticky;top:88px;display:flex;flex-direction:column;gap:18px}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-2);padding:22px;
}
.side-card h3{font-size:15px;font-weight:700;display:flex;align-items:center;gap:8px;margin-bottom:14px}
.side-card h3 .bi{color:var(--brand);font-size:16px}
.side-list li{
  position:relative;padding-left:18px;font-size:14px;line-height:1.7;color:var(--ink-2);margin-bottom:12px;
}
.side-list li:last-child{margin-bottom:0}
.side-list li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;
  background:var(--brand);opacity:.55;
}
.side-card--tint{background:var(--bg-tint);border-color:#DCE7F1}
.side-card--tint p{font-size:14px;color:var(--ink-2);margin-bottom:16px}
.side-card .btn{width:100%}
/* ============ 来源卡 ============ */
.source-card{
  margin-top:48px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--sh-2);padding:26px;
  display:flex;align-items:center;gap:18px;flex-wrap:wrap;
}
.source-avatar{
  width:58px;height:58px;border-radius:50%;flex:0 0 auto;
  background:linear-gradient(140deg,var(--brand),#4A93C0);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:22px;
  box-shadow:var(--sh-1);
}
.source-info{flex:1 1 240px;min-width:0}
.source-info strong{display:block;font-size:16px;font-weight:700;margin-bottom:4px}
.source-info p{font-size:14px;color:var(--ink-2);margin:0}
.source-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px}
/* ============ 标签带 ============ */
.tag-band{
  margin-top:36px;padding:24px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--sh-1);
}
.tag-band h3{font-size:15px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.tag-band h3 .bi{color:var(--brand)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag-pill{
  display:inline-block;padding:6px 15px;font-size:13px;font-weight:500;
  color:var(--brand);background:rgba(33,97,140,.08);border-radius:var(--r-pill);
  transition:background .18s ease,color .18s ease;
}
.tag-pill:hover{background:rgba(33,97,140,.15)}
.tag-pill--accent{color:#B8432A;background:rgba(255,107,74,.12)}
/* ============ 功能延伸卡 ============ */
.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.feature-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-2);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;height:100%;
}
.feature-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:#D5E3EF}
.feature-thumb{position:relative;aspect-ratio:16/9;background:var(--bg-tint);overflow:hidden}
.feature-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.feature-card:hover .feature-thumb img{transform:scale(1.04)}
.feature-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.feature-body h3{font-size:18px;line-height:1.5}
.feature-body p{font-size:14px;color:var(--ink-2);line-height:1.75;margin:0;flex:1}
.feature-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);margin-top:4px}
.feature-link .bi{transition:transform .18s ease;font-size:13px}
.feature-card:hover .feature-link .bi{transform:translateX(3px)}
/* ============ 分类入口卡 ============ */
.channel-card{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);padding:30px 32px;
}
.channel-card .channel-text{flex:1 1 380px;min-width:0}
.channel-card h3{font-size:20px;margin-bottom:8px}
.channel-card p{font-size:15px;color:var(--ink-2);margin:0}
.channel-card .btn{flex:0 0 auto}
/* ============ 下载区 ============ */
.download-block{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:linear-gradient(120deg,var(--brand-strong),var(--brand) 62%,#3E86B4);
  color:#fff;padding:48px 44px;box-shadow:var(--sh-3);
}
.download-block::after{
  content:"";position:absolute;right:-90px;top:-90px;width:300px;height:300px;
  border-radius:50%;background:rgba(255,255,255,.08);
}
.download-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.download-text{flex:1 1 360px;min-width:0}
.download-text h2{color:#fff;font-size:28px;line-height:1.35;margin-bottom:12px}
.download-text p{color:rgba(255,255,255,.86);font-size:15px;margin:0}
.download-actions{display:flex;gap:14px;flex-wrap:wrap}
.dl-btn{
  display:inline-flex;align-items:center;gap:10px;padding:13px 22px;border-radius:var(--r-sm);
  background:#fff;color:var(--brand);font-size:15px;font-weight:600;
  border:1px solid rgba(255,255,255,.6);transition:all .18s ease;box-shadow:0 4px 14px rgba(9,32,50,.18);
}
.dl-btn .bi{font-size:18px}
.dl-btn:hover{transform:translateY(-2px);color:var(--brand-strong);background:#fff;text-decoration:none;box-shadow:0 10px 24px rgba(9,32,50,.26)}
.dl-btn:focus-visible{outline:3px solid rgba(255,255,255,.6);outline-offset:2px}
.dl-btn--ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.5);box-shadow:none}
.dl-btn--ghost:hover{background:rgba(255,255,255,.24);color:#fff}
.dl-note{display:flex;gap:22px;flex-wrap:wrap;margin-top:24px;position:relative;z-index:2;font-size:13px;color:rgba(255,255,255,.82)}
.dl-note span{display:inline-flex;align-items:center;gap:6px}
/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--brand);box-shadow:var(--sh-2);
  display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:18px;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all .22s ease;z-index:900;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--brand);color:#fff;border-color:var(--brand)}
/* ============ 页脚 ============ */
.site-footer{background:#12222E;color:#B9C7D3;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:linear-gradient(140deg,#3E86B4,#21618C)}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text small{color:#7D93A4}
.site-footer p{font-size:14px;line-height:1.8;color:#9DB0BF;margin:0}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social span{
  width:34px;height:34px;border-radius:50%;border:1px solid rgba(255,255,255,.14);
  display:inline-flex;align-items:center;justify-content:center;color:#9DB0BF;font-size:14px;
  transition:all .18s ease;
}
.footer-social span:hover{color:#fff;border-color:rgba(255,255,255,.4);background:rgba(255,255,255,.06)}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:#9DB0BF}
.footer-col a:hover{color:#fff;text-decoration:none}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.10);padding:22px 0;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#7D93A4;
}
/* ============ 响应式 ============ */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 260px;gap:36px}
  .article-head h1{font-size:36px}
}
@media (max-width:991px){
  .nav-seg{display:none}
  .nav-status{display:none}
  .hamburger{display:inline-flex}
  .section{padding:64px 0}
  .article-main{padding:44px 0 56px}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .article-side{order:2}
  .side-sticky{position:static}
  .article-head h1{font-size:31px}
  .article-body{max-width:none}
  .feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
  .download-block{padding:38px 32px}
  .download-text h2{font-size:24px}
}
@media (max-width:767px){
  .container{padding-left:16px;padding-right:16px}
  .section{padding:52px 0}
  .nav-toolbar{height:58px;gap:10px}
  .brand-text small{display:none}
  .nav-download{display:none}
  .article-head{padding:38px 0 32px}
  .article-head h1{font-size:26px;line-height:1.35}
  .head-meta{gap:14px;font-size:13px}
  .crumb-row{padding:12px 0;font-size:13px}
  .crumb .current{max-width:190px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:22px;margin:34px 0 14px}
  .article-body h3{font-size:18px}
  .feature-grid{grid-template-columns:minmax(0,1fr)}
  .channel-card{padding:24px}
  .download-block{padding:32px 22px;border-radius:var(--r-md)}
  .download-actions{width:100%}
  .dl-btn{flex:1 1 100%;justify-content:center}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .source-card{padding:20px}
  .to-top{right:16px;bottom:20px;width:42px;height:42px}
}
@media (max-width:520px){
  .article-head h1{font-size:23px}
  .head-tag{font-size:12px;padding:4px 11px}
  .section-head h2{font-size:22px}
  .channel-card h3{font-size:18px}
}

/* roulang page: category1 */
:root{
  --brand:#21618C;
  --brand-strong:#17456A;
  --accent:#FF6B4A;
  --ink:#16212B;
  --ink-2:#5A6B7B;
  --ink-3:#8A99A8;
  --bg:#F7F9FC;
  --surface:#FFFFFF;
  --bg-tint:#EAF1F7;
  --line:#E2E9F0;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(22,33,43,.05);
  --sh-2:0 2px 6px rgba(22,33,43,.05),0 12px 28px rgba(22,33,43,.07);
  --sh-3:0 6px 14px rgba(22,33,43,.08),0 20px 40px rgba(33,97,140,.10);
  --bs-gutter-x:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.8;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-strong);text-decoration:none}
h1,h2,h3,h4{margin:0 0 .5em;font-weight:700;line-height:1.35;color:var(--ink)}
h1{font-size:40px;line-height:1.25;letter-spacing:.2px}
h2{font-size:30px;letter-spacing:.2px}
h3{font-size:20px;line-height:1.5;font-weight:600}
p{margin:0 0 1em}
ul{padding-left:1.15em}
:focus-visible{outline:3px solid rgba(33,97,140,.28);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.section{padding:88px 0;position:relative}
.section--white{background:var(--surface)}
.section--tint{background:var(--bg-tint)}
.section--plain{background:var(--bg)}
.section-head{max-width:780px;margin-bottom:40px}
.section-head h2{margin-bottom:10px}
.section-head p{color:var(--ink-2);margin:0}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--brand);background:rgba(33,97,140,.09);border-radius:var(--r-pill);padding:5px 14px;margin-bottom:14px;letter-spacing:.3px}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;flex-wrap:wrap}

/* ===== 导航 ===== */
.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);backdrop-filter:saturate(140%) blur(6px)}
.nav-toolbar{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:34px;height:34px;border-radius:11px;background:linear-gradient(140deg,var(--brand),#3d8dbd);display:inline-flex;align-items:center;justify-content:center;gap:3px;box-shadow:var(--sh-1);flex:0 0 auto}
.brand-mark i{display:block;width:3px;border-radius:2px;background:#fff}
.brand-mark i:nth-child(1){height:10px;opacity:.6}
.brand-mark i:nth-child(2){height:17px}
.brand-mark i:nth-child(3){height:13px;opacity:.8}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.4px}
.brand-text small{font-size:12px;color:var(--ink-3);letter-spacing:.2px}
.nav-seg{display:flex;align-items:center;gap:2px;margin:0 auto;background:#F1F5F9;border:1px solid var(--line);border-radius:var(--r-pill);padding:4px}
.seg-item{display:inline-block;padding:7px 16px;font-size:14px;font-weight:500;color:var(--ink-2);border-radius:var(--r-pill);transition:background .18s ease,color .18s ease;white-space:nowrap}
.seg-item:hover{background:#E3ECF4;color:var(--brand)}
.seg-item.is-active{background:var(--brand);color:#fff;font-weight:600;box-shadow:0 2px 6px rgba(33,97,140,.28)}
.seg-item.is-active:hover{background:var(--brand-strong);color:#fff}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-status{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--ink-3);white-space:nowrap}
.nav-status i{width:8px;height:8px;border-radius:50%;background:#34C77B;box-shadow:0 0 0 3px rgba(52,199,123,.16);display:block}
.icon-btn{position:relative;width:36px;height:36px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--ink-2);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:all .18s ease}
.icon-btn:hover{color:var(--brand);border-color:rgba(33,97,140,.35);background:#F4F8FB}
.icon-btn::after{content:"";position:absolute;top:7px;right:8px;width:6px;height:6px;border-radius:50%;background:var(--accent)}
.hamburger{display:none;width:38px;height:38px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;color:var(--ink);align-items:center;justify-content:center;cursor:pointer;font-size:18px;transition:all .18s ease}
.hamburger:hover{color:var(--brand);border-color:rgba(33,97,140,.35)}
.drawer{display:none}
.drawer.open{display:block}
.drawer-panel{border-top:1px solid var(--line);background:#fff;box-shadow:var(--sh-2);padding:8px 0 16px}
.drawer-panel a{display:flex;align-items:center;justify-content:space-between;min-height:48px;padding:0 24px;font-size:16px;color:var(--ink);font-weight:500}
.drawer-panel a:hover{background:#F4F8FB;color:var(--brand)}
.drawer-panel a .bi{color:var(--ink-3);font-size:14px}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;font-size:15px;font-weight:600;border-radius:var(--r-sm);border:1px solid transparent;cursor:pointer;transition:all .18s ease;line-height:1.4;text-align:center}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 2px 8px rgba(33,97,140,.24)}
.btn-primary:hover{background:var(--brand-strong);color:#fff;transform:translateY(-1px);box-shadow:0 6px 16px rgba(33,97,140,.28)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:#fff;color:var(--ink);border-color:var(--line);box-shadow:var(--sh-1)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);background:#F6FAFD;transform:translateY(-1px)}
.btn-sm{padding:8px 16px;font-size:14px}

/* ===== 分类页头部 ===== */
.cat-hero{background:var(--bg-tint);padding:40px 0 56px;border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.cat-hero::before{content:"";position:absolute;inset:0;background:url('/assets/images/50ca07820ef633cd.webp') center/cover no-repeat;opacity:.10}
.cat-hero .container{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:20px;flex-wrap:wrap}
.crumb a{color:var(--ink-2)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--ink-3);opacity:.6}
.cat-hero-grid{display:grid;grid-template-columns:1.5fr .9fr;gap:44px;align-items:center}
.cat-hero h1{margin-bottom:16px}
.cat-hero p{color:var(--ink-2);max-width:680px}
.cat-hero p:last-of-type{margin-bottom:22px}
.cat-meta{display:flex;flex-wrap:wrap;gap:10px}
.cat-meta span{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;color:var(--brand);background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);padding:6px 14px;box-shadow:var(--sh-1)}
.cat-meta i{font-size:14px;color:var(--brand)}
.cat-hero-figure{margin:0;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);border:1px solid #fff;aspect-ratio:4/3;background:var(--bg-tint)}
.cat-hero-figure img{width:100%;height:100%;object-fit:cover}

/* ===== 筛选条 ===== */
.filter-bar{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);padding:18px 22px;display:grid;gap:12px}
.filter-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.filter-label{font-size:13px;font-weight:600;color:var(--ink-3);letter-spacing:.4px;min-width:44px}
.chip{display:inline-flex;align-items:center;padding:7px 16px;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;color:var(--ink-2);font-size:14px;cursor:pointer;transition:all .18s ease;line-height:1.5}
.chip:hover{border-color:rgba(33,97,140,.35);color:var(--brand);background:#F4F8FB}
.chip.is-on{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;box-shadow:0 2px 8px rgba(33,97,140,.24)}
.chip.is-on:hover{background:var(--brand-strong);border-color:var(--brand-strong);color:#fff}

/* ===== 列表条卡 ===== */
.post-list{display:grid;gap:16px}
.post-card{display:grid;grid-template-columns:200px 1fr auto;gap:22px;align-items:center;padding:16px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;color:inherit}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:rgba(33,97,140,.22);color:inherit}
.post-thumb{width:200px;aspect-ratio:200/130;border-radius:var(--r-sm);overflow:hidden;background:var(--bg-tint);display:block}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-body{min-width:0}
.post-tag{display:inline-block;font-size:12.5px;font-weight:600;color:var(--accent);background:rgba(255,107,74,.10);border-radius:var(--r-pill);padding:3px 12px;margin-bottom:8px}
.post-title{display:block;font-size:18px;font-weight:600;line-height:1.5;color:var(--ink);margin-bottom:6px;transition:color .18s ease}
.post-card:hover .post-title{color:var(--brand)}
.post-desc{display:block;font-size:14.5px;color:var(--ink-2);line-height:1.7;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-tags{display:flex;flex-wrap:wrap;gap:8px}
.post-tags span{font-size:12.5px;color:var(--brand);background:rgba(33,97,140,.08);border-radius:var(--r-pill);padding:3px 11px}
.post-side{display:flex;flex-direction:column;align-items:flex-end;gap:10px;padding-left:6px}
.post-date{font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums;white-space:nowrap}
.post-side .bi{width:32px;height:32px;border-radius:50%;background:var(--bg-tint);color:var(--brand);display:inline-flex;align-items:center;justify-content:center;font-size:14px;transition:all .18s ease}
.post-card:hover .post-side .bi{background:var(--brand);color:#fff}
.empty-state{background:#fff;border:1px dashed var(--line);border-radius:var(--r-md);padding:56px 24px;text-align:center;color:var(--ink-3)}
.empty-state .bi{font-size:34px;color:var(--ink-3);display:block;margin-bottom:12px}
.empty-state p{margin:0;font-size:15px}

/* ===== 图文两栏 ===== */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:52px;align-items:center}
.split-rev{grid-template-columns:1fr 1.05fr}
.split-figure{margin:0;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);aspect-ratio:4/3;background:var(--bg-tint)}
.split-figure img{width:100%;height:100%;object-fit:cover}
.split h2{margin-bottom:14px}
.split p{color:var(--ink-2)}
.check-list{list-style:none;margin:20px 0 0;padding:0;display:grid;gap:14px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--ink-2)}
.check-list li i{flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:rgba(33,97,140,.10);color:var(--brand);display:inline-flex;align-items:center;justify-content:center;font-size:13px;margin-top:3px}
.check-list li strong{color:var(--ink);font-weight:600}

/* ===== 跑点列表 ===== */
.spot-list{display:grid;gap:14px}
.spot-item{display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:18px 20px;box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease}
.spot-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.spot-icon{flex:0 0 auto;width:42px;height:42px;border-radius:12px;background:rgba(33,97,140,.10);color:var(--brand);display:inline-flex;align-items:center;justify-content:center;font-size:18px}
.spot-item h3{font-size:16.5px;margin-bottom:4px}
.spot-item p{margin:0;font-size:14.5px;color:var(--ink-2);line-height:1.7}

/* ===== 安全板块 ===== */
.safe-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:8px}
.safe-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:26px 22px;box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.safe-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:rgba(33,97,140,.2)}
.safe-card .ic{width:44px;height:44px;border-radius:13px;background:rgba(33,97,140,.10);color:var(--brand);display:inline-flex;align-items:center;justify-content:center;font-size:19px;margin-bottom:14px}
.safe-card h3{font-size:16.5px;margin-bottom:8px}
.safe-card p{margin:0;font-size:14.5px;color:var(--ink-2);line-height:1.7}

/* ===== 标签云 ===== */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
.tag-cloud span{display:inline-flex;align-items:center;padding:7px 16px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--line);color:var(--ink-2);font-size:14px;box-shadow:var(--sh-1);transition:all .18s ease}
.tag-cloud span:hover{border-color:rgba(33,97,140,.35);color:var(--brand);background:#F4F8FB}

/* ===== 精选内容 ===== */
.pick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pick-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-2);transition:transform .18s ease,box-shadow .18s ease;color:inherit}
.pick-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);color:inherit}
.pick-thumb{aspect-ratio:16/9;background:var(--bg-tint);overflow:hidden}
.pick-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.pick-card:hover .pick-thumb img{transform:scale(1.05)}
.pick-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:8px;flex:1}
.pick-body h3{font-size:16.5px;margin:0;line-height:1.55}
.pick-card:hover .pick-body h3{color:var(--brand)}
.pick-body p{margin:0;font-size:14px;color:var(--ink-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pick-more{margin-top:auto;font-size:13.5px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:12px}
.faq-list .accordion-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);overflow:hidden}
.faq-list .accordion-header{margin:0}
.faq-list .accordion-button{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;padding:20px 24px;background:#fff;border:0;font-size:16.5px;font-weight:600;color:var(--ink);line-height:1.6;text-align:left;box-shadow:none;transition:color .18s ease,background .18s ease}
.faq-list .accordion-button:not(.collapsed){color:var(--brand);background:#F6FAFD}
.faq-list .accordion-button:hover{color:var(--brand)}
.faq-list .accordion-button:focus{box-shadow:none;outline:3px solid rgba(33,97,140,.28);outline-offset:-3px}
.faq-list .accordion-button::after{display:none}
.faq-list .accordion-button .bi{color:var(--ink-3);font-size:14px;transition:transform .2s ease,color .2s ease;flex:0 0 auto}
.faq-list .accordion-button:not(.collapsed) .bi{transform:rotate(90deg);color:var(--brand)}
.faq-list .accordion-body{padding:0 24px 22px;color:var(--ink-2);font-size:15px;line-height:1.85}

/* ===== 下载 CTA ===== */
.download-card{background:linear-gradient(135deg,#21618C 0%,#2b7bab 62%,#3593c9 100%);border-radius:var(--r-lg);padding:52px;color:#fff;display:grid;grid-template-columns:1.4fr .85fr;gap:40px;align-items:center;box-shadow:var(--sh-3);overflow:hidden;position:relative}
.download-card h2{color:#fff;margin-bottom:12px}
.download-card p{color:rgba(255,255,255,.86);margin-bottom:24px;max-width:560px}
.dl-buttons{display:flex;flex-wrap:wrap;gap:12px}
.btn-light{background:#fff;color:var(--brand);box-shadow:0 4px 14px rgba(9,35,55,.18)}
.btn-light:hover{background:#F1F6FA;color:var(--brand-strong);transform:translateY(-1px)}
.btn-line{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.55)}
.btn-line:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;transform:translateY(-1px)}
.dl-note{display:flex;flex-wrap:wrap;gap:20px;margin-top:26px;font-size:13.5px;color:rgba(255,255,255,.82)}
.dl-note span{display:inline-flex;align-items:center;gap:7px}
.dl-figure{margin:0;border-radius:var(--r-md);overflow:hidden;box-shadow:0 10px 30px rgba(9,35,55,.25);aspect-ratio:4/3;background:rgba(255,255,255,.14)}
.dl-figure img{width:100%;height:100%;object-fit:cover}

/* ===== 页脚 ===== */
.site-footer{background:var(--bg-tint);border-top:1px solid var(--line);color:var(--ink-2);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-text strong{font-size:16px}
.site-footer p{font-size:14px;line-height:1.85;margin:0;max-width:420px}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social span{width:34px;height:34px;border-radius:50%;background:#fff;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;color:var(--ink-3);transition:all .18s ease}
.footer-social span:hover{color:var(--brand);border-color:rgba(33,97,140,.35)}
.footer-col h4{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:16px}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.footer-col a{color:var(--ink-2);font-size:14px}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{border-top:1px solid var(--line);padding:20px 0 26px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--ink-3)}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .cat-hero-grid{grid-template-columns:1.4fr 1fr;gap:36px}
  .safe-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991px){
  h1{font-size:32px}
  h2{font-size:25px}
  .section{padding:64px 0}
  .nav-seg{display:none}
  .nav-status{display:none}
  .hamburger{display:inline-flex}
  .nav-download{display:none}
  .nav-toolbar{gap:12px}
  .nav-right{margin-left:auto}
  .cat-hero{padding:28px 0 44px}
  .cat-hero-grid{grid-template-columns:1fr;gap:26px}
  .cat-hero-figure{aspect-ratio:16/9;max-width:560px}
  .split,.split-rev{grid-template-columns:1fr;gap:28px}
  .split-figure{aspect-ratio:16/9}
  .post-card{grid-template-columns:160px 1fr auto;gap:16px}
  .post-thumb{width:160px;aspect-ratio:160/120}
  .pick-grid{grid-template-columns:repeat(2,1fr)}
  .download-card{grid-template-columns:1fr;padding:36px 28px;gap:26px}
  .dl-figure{aspect-ratio:16/9;max-width:520px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .site-footer{padding-top:52px}
}
@media (max-width:767px){
  .container{padding-left:16px;padding-right:16px}
  h1{font-size:27px}
  h2{font-size:22px}
  h3{font-size:18px}
  .section{padding:52px 0}
  .cat-hero h1{font-size:26px}
  .cat-meta span{font-size:12.5px;padding:5px 12px}
  .post-card{grid-template-columns:1fr;gap:14px}
  .post-thumb{width:100%;aspect-ratio:16/9}
  .post-side{flex-direction:row;align-items:center;justify-content:space-between;width:100%;padding-left:0;border-top:1px dashed var(--line);padding-top:12px}
  .pick-grid{grid-template-columns:1fr}
  .safe-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .dl-buttons{flex-direction:column;align-items:stretch}
  .dl-buttons .btn{width:100%}
  .download-card{padding:30px 20px}
  .filter-bar{padding:16px}
  .faq-list .accordion-button{padding:16px 18px;font-size:15.5px}
  .faq-list .accordion-body{padding:0 18px 18px}
  .split h2{font-size:21px}
  .brand-text small{display:none}
}
@media (max-width:400px){
  .brand-text strong{font-size:15.5px}
  .chip{padding:6px 13px;font-size:13px}
}