/* roulang page: index */
:root{
  --brand:#1857C4;
  --brand-dark:#1348A6;
  --brand-soft:#E7EFFD;
  --brand-tint:#EEF4FF;
  --accent:#FF7A2F;
  --accent-soft:#FFF1E7;
  --ink:#101B33;
  --text:#3D4B66;
  --muted:#7A88A3;
  --line:#E6ECF5;
  --bg:#FFFFFF;
  --bg-alt:#F5F8FD;
  --success:#0F9E77;
  --warning:#D97706;
  --danger:#DC4B3E;
  --r-btn:10px;
  --r-input:10px;
  --r-card:14px;
  --r-box:20px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,27,51,.04),0 2px 8px rgba(24,87,196,.06);
  --sh-2:0 10px 28px rgba(24,87,196,.12);
  --sh-3:0 16px 40px rgba(16,27,51,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --gap:24px;
  --section:88px;
  --bs-body-font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --bs-body-color:#3D4B66;
  --bs-link-color:#1857C4;
  --bs-link-hover-color:#1348A6;
  --bs-primary:#1857C4;
  --bs-border-radius:14px;
  --bs-body-bg:#FFFFFF;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--bs-body-font-family);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--brand-dark)}
button,input,textarea,select{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{color:var(--ink);margin:0}
h1{font-size:clamp(30px,4.4vw,46px);line-height:1.25;font-weight:700;letter-spacing:-.2px}
h2{font-size:clamp(24px,3vw,34px);line-height:1.3;font-weight:700}
h3{font-size:20px;line-height:1.4;font-weight:600}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 clamp(16px,4vw,32px)}
.section{padding:var(--section) 0}
.section--alt{background:var(--bg-alt)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;flex-wrap:wrap}
.sec-head p{color:var(--muted);font-size:15px;margin-top:10px;max-width:640px}
.sec-head .sec-h2{position:relative;padding-left:16px}
.sec-head .sec-h2::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:2px;background:var(--brand)}
.link-btn{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--brand);white-space:nowrap}
.link-btn i{transition:transform .22s var(--ease);font-size:12px}
.link-btn:hover i{transform:translateX(3px)}

/* ============ buttons ============ */
.btn-main,.btn-ghost,.btn-plain{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);font-weight:600;font-size:15px;cursor:pointer;transition:all .22s var(--ease);border:1px solid transparent;text-align:center}
.btn-main{background:var(--brand);color:#fff;height:48px;padding:0 24px}
.btn-main:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-main:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand);border-color:rgba(24,87,196,.28);height:48px;padding:0 22px}
.btn-ghost:hover{background:var(--brand-tint);border-color:var(--brand);color:var(--brand-dark);transform:translateY(-1px)}
.btn-plain{background:transparent;color:var(--brand);height:44px;padding:0 6px}
.btn-plain:hover{color:var(--brand-dark)}
.btn-lg-main{height:52px;padding:0 30px;font-size:16px}
.btn-main:focus-visible,.btn-ghost:focus-visible,.btn-plain:focus-visible,.link-btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

/* ============ header ============ */
.site-header{position:sticky;top:0;z-index:1040;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:box-shadow .24s var(--ease),border-color .24s var(--ease)}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:0 4px 18px rgba(16,27,51,.06)}
.brand-bar{display:flex;align-items:center;gap:20px;height:64px}
.channel-bar{display:flex;align-items:center;gap:6px;height:48px;overflow-x:auto;scrollbar-width:none}
.channel-bar::-webkit-scrollbar{display:none}
.is-stuck .brand-bar{height:56px}
.is-stuck .channel-bar{height:44px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:36px;height:36px;border-radius:11px;background:var(--brand);position:relative;flex-shrink:0;box-shadow:0 6px 14px rgba(24,87,196,.24)}
.logo-mark::before{content:"";position:absolute;left:9px;top:9px;width:18px;height:18px;border:2px solid #fff;border-radius:50%;border-right-color:transparent;transform:rotate(-40deg)}
.logo-mark::after{content:"";position:absolute;left:17px;top:17px;width:7px;height:7px;border-radius:50%;background:var(--accent)}
.logo-text{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.2px;white-space:nowrap}
.logo-text small{display:block;font-size:11px;font-weight:400;color:var(--muted);letter-spacing:1.4px;line-height:1}
.search-box{position:relative;flex:1;max-width:380px}
.search-box input{width:100%;height:42px;border:1px solid var(--line);border-radius:var(--r-input);background:var(--bg-alt);padding:0 42px 0 16px;font-size:14px;color:var(--ink);transition:all .22s var(--ease)}
.search-box input::placeholder{color:var(--muted)}
.search-box input:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(24,87,196,.12)}
.search-box i{position:absolute;right:15px;top:50%;transform:translateY(-50%);color:var(--muted);font-size:14px;pointer-events:none}
.hot-tags{display:flex;align-items:center;gap:8px;flex-shrink:0}
.hot-tags a{font-size:12px;color:var(--text);background:var(--bg-alt);border-radius:var(--r-pill);padding:5px 12px;transition:all .22s var(--ease);white-space:nowrap}
.hot-tags a:hover{background:var(--brand-soft);color:var(--brand-dark)}
.head-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex-shrink:0}
.head-actions .btn-main{height:42px;padding:0 20px;font-size:14px}
.icon-btn{width:42px;height:42px;border-radius:var(--r-btn);border:1px solid var(--line);background:#fff;color:var(--ink);display:none;align-items:center;justify-content:center;cursor:pointer}
.channel-bar a{font-size:15px;color:var(--text);padding:0 14px;height:48px;display:inline-flex;align-items:center;position:relative;white-space:nowrap;transition:color .22s var(--ease)}
.channel-bar a::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;border-radius:3px 3px 0 0;background:transparent;transition:background .22s var(--ease)}
.channel-bar a:hover{color:var(--brand)}
.channel-bar a.active{color:var(--brand);font-weight:600}
.channel-bar a.active::after{background:var(--brand)}

/* ============ hero ============ */
.hero{padding:64px 0 72px;background:linear-gradient(180deg,#F7FAFF 0%,#FFFFFF 78%)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.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:var(--brand-soft);border-radius:var(--r-pill);padding:6px 14px;margin-bottom:20px}
.hero h1{margin-bottom:18px}
.hero-sub{font-size:17px;line-height:1.8;color:var(--text);max-width:560px;margin-bottom:28px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-bottom:26px}
.hero-pills{display:flex;flex-wrap:wrap;gap:10px}
.hero-pills span{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text);background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);padding:6px 14px}
.hero-pills span i{color:var(--brand);font-size:12px}
.hero-visual{position:relative}
.hero-photo{border-radius:var(--r-box);overflow:hidden;position:relative;border:1px solid rgba(16,27,51,.06);box-shadow:var(--sh-2);aspect-ratio:4/3;background:#DCE7FA}
.hero-photo img{width:100%;height:100%;object-fit:cover}
.hero-photo::after{content:"";position:absolute;inset:0;background:rgba(24,87,196,.08)}
.hero-float{position:absolute;left:-24px;bottom:32px;background:#fff;border-radius:var(--r-card);padding:18px 22px;box-shadow:var(--sh-3);border:1px solid var(--line);min-width:196px}
.hero-float b{display:block;font-size:32px;line-height:1.1;color:var(--brand);font-weight:700;letter-spacing:-.5px}
.hero-float span{font-size:13px;color:var(--muted)}

/* ============ value strip ============ */
.value-strip{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.value-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.value-item{padding:34px 26px;position:relative}
.value-item+.value-item::before{content:"";position:absolute;left:0;top:28px;bottom:28px;width:1px;background:var(--line)}
.value-item i{font-size:22px;color:var(--brand);margin-bottom:14px;display:block}
.value-item h3{font-size:17px;margin-bottom:8px}
.value-item p{font-size:14px;color:var(--muted);line-height:1.7}

/* ============ bento ============ */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:20px}
.bento-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);transition:transform .24s var(--ease),box-shadow .24s var(--ease);display:flex;flex-direction:column;gap:10px}
.bento-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.bento-item i{font-size:22px;color:var(--brand)}
.bento-item h3{font-size:17px}
.bento-item p{font-size:14px;color:var(--muted);line-height:1.7}
.bento-w1{grid-column:span 3;flex-direction:row;align-items:center;gap:22px}
.bento-w1 .bento-copy{display:flex;flex-direction:column;gap:10px}
.bento-w1 img{width:44%;border-radius:var(--r-img);aspect-ratio:16/10;object-fit:cover;border:1px solid rgba(16,27,51,.06)}
.bento-w2{grid-column:span 3;background:var(--brand);border-color:var(--brand);color:#fff}
.bento-w2 i,.bento-w2 h3{color:#fff}
.bento-w2 p{color:rgba(255,255,255,.82)}
.bento-s{grid-column:span 2}
.bento-tag{align-self:flex-start;font-size:12px;font-weight:600;color:var(--accent);background:var(--accent-soft);border-radius:var(--r-pill);padding:3px 10px}

/* ============ zigzag ============ */
.zigzag{display:flex;flex-direction:column;gap:56px}
.zz-row{display:grid;grid-template-columns:44% 1fr;gap:44px;align-items:center}
.zz-row.rev{grid-template-columns:1fr 44%}
.zz-row.rev .zz-photo{order:2}
.zz-photo{border-radius:var(--r-img);overflow:hidden;border:1px solid rgba(16,27,51,.06);box-shadow:var(--sh-1);aspect-ratio:3/2}
.zz-photo img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.zz-photo:hover img{transform:scale(1.04)}
.zz-no{font-size:13px;font-weight:700;color:var(--accent);letter-spacing:1.5px;margin-bottom:10px;display:block}
.zz-body h3{font-size:22px;margin-bottom:12px}
.zz-body p{font-size:15px;color:var(--text);margin-bottom:16px}
.zz-list li{position:relative;padding-left:18px;font-size:14px;color:var(--muted);line-height:2}
.zz-list li::before{content:"";position:absolute;left:0;top:12px;width:7px;height:7px;border-radius:50%;background:var(--brand)}

/* ============ cases ============ */
.case-top{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:24px}
.case-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .24s var(--ease),box-shadow .24s var(--ease);display:flex;flex-direction:column}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.case-card figure{margin:0;aspect-ratio:16/9;overflow:hidden}
.case-card figure img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.case-card:hover figure img{transform:scale(1.04)}
.case-card-bd{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.case-card-bd h3{font-size:18px}
.case-card-bd p{font-size:14px;color:var(--muted)}
.case-bars{display:flex;flex-wrap:wrap;gap:10px;margin-top:auto;padding-top:8px}
.case-bars span{font-size:13px;color:var(--brand);background:var(--brand-tint);border-radius:var(--r-pill);padding:4px 12px;font-variant-numeric:tabular-nums}
.case-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.case-mini{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px;transition:transform .24s var(--ease),box-shadow .24s var(--ease)}
.case-mini:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.case-mini h3{font-size:16px;margin-bottom:8px}
.case-mini p{font-size:13px;color:var(--muted);line-height:1.75}
.case-mini .mini-tag{font-size:12px;color:var(--accent);background:var(--accent-soft);border-radius:var(--r-pill);padding:3px 10px;display:inline-block;margin-bottom:10px}

/* ============ price ============ */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.price-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-box);padding:30px 26px;box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:16px;transition:transform .24s var(--ease),box-shadow .24s var(--ease)}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.price-card.featured{border:2px solid var(--brand);box-shadow:var(--sh-3);transform:translateY(-8px);position:relative}
.price-card.featured:hover{transform:translateY(-12px)}
.price-badge{position:absolute;top:-14px;left:26px;background:var(--accent);color:#fff;font-size:12px;font-weight:600;border-radius:var(--r-pill);padding:4px 14px}
.price-name{font-size:17px;font-weight:600;color:var(--ink)}
.price-num{font-size:36px;font-weight:700;color:var(--ink);line-height:1.1;font-variant-numeric:tabular-nums}
.price-num small{font-size:14px;font-weight:400;color:var(--muted);margin-left:6px}
.price-desc{font-size:13px;color:var(--muted);line-height:1.7}
.price-list{display:flex;flex-direction:column;gap:10px;font-size:14px}
.price-list li{display:flex;gap:10px;align-items:flex-start;color:var(--text)}
.price-list li i{color:var(--brand);font-size:13px;margin-top:5px}
.price-list li.off{color:var(--muted);text-decoration:line-through}
.price-list li.off i{color:var(--muted)}
.price-note{font-size:12px;color:var(--muted);text-align:center}

/* ============ news list ============ */
.tabs{display:flex;gap:8px;flex-wrap:wrap}
.tabs a{font-size:14px;color:var(--text);border:1px solid var(--line);background:#fff;border-radius:var(--r-pill);padding:7px 16px;transition:all .22s var(--ease)}
.tabs a:hover{border-color:var(--brand);color:var(--brand)}
.tabs a.on{background:var(--brand-soft);border-color:transparent;color:var(--brand-dark);font-weight:600}
.news-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:24px}
.news-main{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .24s var(--ease),box-shadow .24s var(--ease);display:flex;flex-direction:column}
.news-main:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.news-main figure{margin:0;aspect-ratio:16/9;overflow:hidden}
.news-main figure img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.news-main:hover figure img{transform:scale(1.04)}
.news-main .bd{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-main h3{font-size:20px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-main h3 a{color:var(--ink)}
.news-main h3 a:hover{color:var(--brand)}
.news-main p{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--muted);margin-top:auto}
.meta .badge-cat{font-size:12px;font-weight:600;color:var(--brand);background:var(--brand-soft);border-radius:var(--r-pill);padding:3px 11px}
.meta i{font-size:12px}
.news-side{display:flex;flex-direction:column;gap:16px}
.news-mini{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:14px;box-shadow:var(--sh-1);transition:transform .24s var(--ease),box-shadow .24s var(--ease)}
.news-mini:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.news-mini figure{margin:0;width:120px;height:80px;flex-shrink:0;border-radius:var(--r-img);overflow:hidden}
.news-mini figure img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.news-mini:hover figure img{transform:scale(1.05)}
.news-mini .bd{display:flex;flex-direction:column;gap:6px;min-width:0}
.news-mini h3{font-size:15px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-mini h3 a{color:var(--ink)}
.news-mini h3 a:hover{color:var(--brand)}
.news-mini .meta{margin-top:0;gap:10px}
.news-mini .meta span:not(.badge-cat){display:none}
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:60px 20px;background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);text-align:center}
.empty-state .ring{width:96px;height:96px;border-radius:50%;border:2px solid rgba(24,87,196,.15);display:flex;align-items:center;justify-content:center;color:rgba(24,87,196,.45);font-size:32px}
.empty-state p{font-size:16px;color:var(--muted)}

/* ============ faq ============ */
.faq-layout{display:grid;grid-template-columns:300px 1fr;gap:48px;align-items:start}
.faq-side h2{margin-bottom:14px}
.faq-side p{font-size:14px;color:var(--muted);line-height:1.8;margin-bottom:18px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;background:none;border:0;display:flex;align-items:center;gap:16px;padding:0 0 0 14px;min-height:64px;text-align:left;cursor:pointer;font-size:16px;font-weight:600;color:var(--ink);position:relative;transition:color .22s var(--ease)}
.faq-q::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;background:transparent;transition:background .22s var(--ease)}
.faq-item.open .faq-q::before{background:var(--brand)}
.faq-q:hover{color:var(--brand)}
.faq-num{font-size:13px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:.5px}
.faq-icon{margin-left:auto;color:var(--muted);font-size:14px;transition:transform .24s var(--ease)}
.faq-item.open .faq-icon{transform:rotate(45deg);color:var(--brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a .inner{background:var(--bg-alt);border-radius:var(--r-img);padding:16px 18px;font-size:14px;line-height:1.85;color:var(--text);margin:0 0 18px}

/* ============ cta ============ */
.cta-band{background:var(--brand);border-radius:var(--r-box);padding:48px 40px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;box-shadow:var(--sh-2)}
.cta-band h2{color:#fff;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.85);font-size:15px;max-width:620px}
.cta-band .btn-white{background:#fff;color:var(--brand);height:50px;padding:0 28px;border-radius:var(--r-btn);font-weight:600;display:inline-flex;align-items:center;gap:8px;transition:all .22s var(--ease)}
.cta-band .btn-white:hover{color:var(--brand-dark);transform:translateY(-1px);box-shadow:0 12px 26px rgba(0,0,0,.16)}

/* ============ form ============ */
.form-strip{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.form-strip h2{margin-bottom:12px}
.form-strip p{font-size:15px;color:var(--muted);line-height:1.85}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-field{display:flex;flex-direction:column;gap:8px}
.form-field.full{grid-column:1/-1}
.form-field label{font-size:13px;font-weight:500;color:var(--ink)}
.form-field input,.form-field textarea{height:48px;border:1px solid var(--line);border-radius:var(--r-input);padding:0 16px;font-size:14px;color:var(--ink);background:#fff;transition:all .22s var(--ease)}
.form-field textarea{height:110px;padding:12px 16px;resize:vertical;line-height:1.7}
.form-field input:focus,.form-field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(24,87,196,.12)}

/* ============ footer ============ */
.site-footer{background:#fff;border-top:3px solid var(--brand);padding:56px 0 0;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px}
.foot-brand .logo{margin-bottom:16px}
.foot-brand p{font-size:14px;color:var(--muted);line-height:1.9;margin-bottom:18px;max-width:300px}
.qr-box{width:104px;height:104px;border:1px dashed var(--line);border-radius:var(--r-img);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;color:var(--muted);font-size:12px;background:var(--bg-alt)}
.qr-box i{font-size:26px;color:rgba(24,87,196,.35)}
.foot-col h4{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--ink)}
.foot-col li{line-height:2.2}
.foot-col a{font-size:14px;color:var(--text)}
.foot-col a:hover{color:var(--brand)}
.foot-col .contact-line{display:flex;gap:10px;font-size:14px;color:var(--text);line-height:2.2}
.foot-col .contact-line i{color:var(--brand);font-size:13px;margin-top:8px}
.foot-bar{border-top:1px solid var(--line);padding:18px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--muted)}
.foot-bar a{color:var(--muted)}
.foot-bar a:hover{color:var(--brand)}

/* ============ offcanvas ============ */
.offcanvas{border:0}
.offcanvas-header{border-bottom:1px solid var(--line)}
.offcanvas-body .m-nav a{display:flex;align-items:center;justify-content:space-between;padding:14px 2px;font-size:16px;color:var(--ink);border-bottom:1px solid var(--line)}
.offcanvas-body .m-nav a.active{color:var(--brand);font-weight:600}
.offcanvas-body .m-search{margin:16px 0}
.offcanvas-body .m-search input{width:100%;height:46px;border:1px solid var(--line);border-radius:var(--r-input);padding:0 16px;background:var(--bg-alt)}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .bento-item:hover,.case-card:hover,.case-mini:hover,.news-main:hover,.news-mini:hover,.price-card:hover{transform:none}
}
@media (max-width:1199.98px){
  :root{--section:76px}
  .hero-grid{gap:40px}
  .bento{grid-template-columns:repeat(4,1fr)}
  .bento-w1,.bento-w2{grid-column:span 2}
  .bento-s{grid-column:span 2}
}
@media (max-width:991.98px){
  :root{--section:64px}
  .search-box,.hot-tags{display:none}
  .icon-btn{display:inline-flex}
  .value-grid{grid-template-columns:repeat(2,1fr)}
  .value-item:nth-child(3)::before,.value-item:nth-child(1)::before{display:none}
  .value-item{border-top:1px solid var(--line)}
  .value-item:nth-child(1),.value-item:nth-child(2){border-top:0}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-float{position:static;margin-top:-28px;margin-left:20px;display:inline-block}
  .zz-row,.zz-row.rev{grid-template-columns:1fr;gap:24px}
  .zz-row.rev .zz-photo{order:0}
  .bento{grid-template-columns:repeat(2,1fr)}
  .bento-w1,.bento-w2,.bento-s{grid-column:span 2;flex-direction:column;align-items:flex-start}
  .bento-w1 img{width:100%}
  .case-top{grid-template-columns:1fr}
  .case-row{grid-template-columns:1fr}
  .price-grid{grid-template-columns:1fr;gap:20px}
  .price-card.featured{transform:none}
  .price-card.featured:hover{transform:translateY(-4px)}
  .news-grid{grid-template-columns:1fr}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .form-strip{grid-template-columns:1fr;gap:26px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
  .logo-text{font-size:17px}
}
@media (max-width:575.98px){
  :root{--section:48px}
  .hero{padding:40px 0 52px}
  .hero-cta .btn-main,.hero-cta .btn-ghost{width:100%}
  .value-grid{grid-template-columns:1fr}
  .value-item{padding:24px 4px;border-top:1px solid var(--line)}
  .value-item::before{display:none}
  .value-item:first-child{border-top:0}
  .bento{grid-template-columns:1fr;gap:16px}
  .bento-w1,.bento-w2,.bento-s{grid-column:span 1}
  .news-mini{flex-direction:column}
  .news-mini figure{width:100%;height:auto;aspect-ratio:16/9}
  .news-mini .meta span:not(.badge-cat){display:inline}
  .cta-band{padding:32px 22px}
  .form-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:24px}
  .foot-bar{justify-content:flex-start}
  .head-actions .btn-main{display:none}
}

/* roulang page: category1 */
:root{
  --brand:#1857C4;
  --brand-dark:#1348A6;
  --brand-soft:#E7EFFD;
  --brand-tint:#EEF4FF;
  --accent:#FF7A2F;
  --accent-soft:#FFF1E7;
  --ink:#101B33;
  --text:#3D4B66;
  --muted:#7A88A3;
  --line:#E6ECF5;
  --bg:#FFFFFF;
  --bg-alt:#F5F8FD;
  --ok:#0F9E77;
  --warn:#D97706;
  --err:#DC4B3E;
  --r-btn:10px;
  --r-card:14px;
  --r-lg:20px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,27,51,.04), 0 2px 8px rgba(24,87,196,.06);
  --sh-2:0 10px 28px rgba(24,87,196,.12);
  --sh-3:0 16px 40px rgba(16,27,51,.12);
  --ease:cubic-bezier(.2,.7,.3,1);

  --bs-primary:#1857C4;
  --bs-primary-rgb:24,87,196;
  --bs-link-color:#1857C4;
  --bs-link-hover-color:#1348A6;
  --bs-body-color:#3D4B66;
  --bs-body-font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --bs-border-color:#E6ECF5;
  --bs-border-radius:14px;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease)}
a:hover{color:var(--brand-dark)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:0}
h1{font-size:clamp(30px,4.4vw,46px);line-height:1.25}
h2{font-size:clamp(24px,3vw,34px);line-height:1.3}
h3{font-size:20px;line-height:1.4;font-weight:600}
h4{font-size:15px;line-height:1.5;font-weight:600}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 clamp(16px,4vw,32px)}
.section{padding:88px 0}
.section-alt{background:var(--bg-alt)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-head .eyebrow{display:inline-block;font-size:12px;font-weight:600;color:var(--brand);background:var(--brand-tint);border-radius:var(--r-pill);padding:4px 12px;margin-bottom:12px;letter-spacing:.04em}
.section-head p{margin-top:10px;color:var(--muted);font-size:15px;max-width:640px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);white-space:nowrap}
.link-more i{transition:transform .24s var(--ease);font-size:12px}
.link-more:hover i{transform:translateX(3px)}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.94);backdrop-filter:saturate(150%) blur(8px);-webkit-backdrop-filter:saturate(150%) blur(8px);transition:box-shadow .24s var(--ease),border-color .24s var(--ease);border-bottom:1px solid transparent}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:0 2px 14px rgba(16,27,51,.06)}
.topbar{height:64px;transition:height .24s var(--ease)}
.site-header.scrolled .topbar{height:56px}
.topbar-inner{height:100%;display:flex;align-items:center;gap:20px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{width:32px;height:32px;border-radius:10px;background:var(--brand);position:relative;display:inline-block;flex:0 0 auto;box-shadow:0 4px 10px rgba(24,87,196,.28)}
.logo-mark::before{content:"";position:absolute;left:8px;top:8px;width:16px;height:16px;border-radius:4px;background:#fff;opacity:.92}
.logo-mark::after{content:"";position:absolute;left:13px;top:13px;width:6px;height:6px;border-radius:50%;background:var(--accent)}
.logo-text{display:flex;flex-direction:column;line-height:1.1;font-size:18px;font-weight:700;color:var(--ink)}
.logo-text small{font-size:10px;font-weight:500;letter-spacing:.14em;color:var(--muted);margin-top:2px}
.logo:hover .logo-text{color:var(--brand)}
.search-box{flex:1 1 auto;max-width:400px;display:flex;align-items:center;gap:8px;height:40px;padding:0 6px 0 14px;background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-pill);transition:border-color .22s var(--ease),background-color .22s var(--ease),box-shadow .22s var(--ease)}
.search-box:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(24,87,196,.12)}
.search-box i{color:var(--muted);font-size:14px}
.search-box input{flex:1 1 auto;border:0;background:transparent;height:100%;font-size:14px;color:var(--ink);min-width:0}
.search-box input::placeholder{color:var(--muted)}
.search-box input:focus{outline:none}
.search-box button{border:0;background:var(--brand);color:#fff;font-size:13px;font-weight:600;height:30px;padding:0 14px;border-radius:var(--r-pill);cursor:pointer;transition:background-color .22s var(--ease)}
.search-box button:hover{background:var(--brand-dark)}
.hot-tags{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.hot-tags a{font-size:12px;color:var(--text);background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-pill);padding:5px 12px;transition:all .22s var(--ease)}
.hot-tags a:hover{color:var(--brand);background:var(--brand-tint);border-color:rgba(24,87,196,.24)}
.top-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;margin-left:auto}
.btn-ghost{font-size:14px;font-weight:500;color:var(--text);padding:8px 12px;border-radius:var(--r-btn);transition:all .22s var(--ease)}
.btn-ghost:hover{color:var(--brand);background:var(--brand-tint)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;border-radius:var(--r-btn);border:1px solid transparent;cursor:pointer;transition:transform .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease)}
.btn-primary{background:var(--brand);color:#fff;height:46px;padding:0 24px;box-shadow:0 6px 16px rgba(24,87,196,.2)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(24,87,196,.26)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:#fff;color:var(--brand);border-color:rgba(24,87,196,.2);height:46px;padding:0 22px}
.btn-outline:hover{border-color:var(--brand);background:var(--brand-tint);color:var(--brand-dark);transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--brand);height:46px;padding:0 24px}
.btn-light:hover{background:var(--brand-tint);color:var(--brand-dark);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.channelbar{height:48px;border-top:1px solid var(--line);transition:height .24s var(--ease)}
.site-header.scrolled .channelbar{height:44px}
.channel-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:20px}
.channel-links{display:flex;align-items:center;gap:4px;height:100%;overflow-x:auto;scrollbar-width:none}
.channel-links::-webkit-scrollbar{display:none}
.channel-links a{position:relative;display:inline-flex;align-items:center;height:100%;padding:0 16px;font-size:15px;font-weight:500;color:var(--text);white-space:nowrap;transition:color .22s var(--ease)}
.channel-links a:hover{color:var(--brand)}
.channel-links a.active{color:var(--brand);font-weight:600}
.channel-links a.active::after{content:"";position:absolute;left:16px;right:16px;bottom:-1px;height:3px;border-radius:3px 3px 0 0;background:var(--brand)}
.channel-more{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--brand);white-space:nowrap}
.channel-more i{font-size:11px;transition:transform .24s var(--ease)}
.channel-more:hover i{transform:translateX(3px)}
.burger{display:none;width:40px;height:40px;border:1px solid var(--line);background:#fff;border-radius:var(--r-btn);align-items:center;justify-content:center;cursor:pointer}
.burger span{position:relative;width:16px;height:2px;background:var(--ink);border-radius:2px;display:block;transition:background-color .2s var(--ease)}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:var(--ink);border-radius:2px;transition:transform .24s var(--ease)}
.burger span::before{top:-5px}
.burger span::after{top:5px}
.burger.active span{background:transparent}
.burger.active span::before{transform:translateY(5px) rotate(45deg)}
.burger.active span::after{transform:translateY(-5px) rotate(-45deg)}
.mobile-drawer{display:none}

/* ============ 面包屑与页头 ============ */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line)}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding:14px 0}
.crumb a{color:var(--brand)}
.crumb a:hover{text-decoration:underline}
.crumb span.sep{color:#C6D0E0}
.crumb .current{color:var(--muted)}
.page-hero{position:relative;background-image:linear-gradient(180deg,rgba(238,244,255,.94),rgba(255,255,255,.98)),url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;border-bottom:1px solid var(--line)}
.page-hero-inner{padding:56px 0 60px;display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:40px;align-items:center}
.page-hero h1{margin-bottom:16px}
.page-hero h1 em{font-style:normal;color:var(--brand)}
.hero-lead{font-size:17px;line-height:1.9;color:var(--text);max-width:640px}
.hero-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-pill{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text);background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);padding:8px 16px;box-shadow:var(--sh-1)}
.hero-pill b{color:var(--brand);font-size:15px;font-variant-numeric:tabular-nums}
.hero-side{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1)}
.hero-side h3{font-size:16px;margin-bottom:14px}
.hero-side ul li{display:flex;gap:10px;align-items:flex-start;font-size:14px;padding:10px 0;border-bottom:1px dashed var(--line);color:var(--text)}
.hero-side ul li:last-child{border-bottom:0;padding-bottom:0}
.hero-side ul li i{color:var(--brand);font-size:13px;margin-top:5px}
.hero-side .side-note{margin-top:16px;font-size:12.5px;color:var(--muted);line-height:1.8}

/* ============ 头条 + 快讯 ============ */
.feature-layout{display:grid;grid-template-columns:minmax(0,1.75fr) minmax(0,1fr);gap:28px;align-items:start}
.headline-card{display:grid;grid-template-columns:1.35fr 1fr;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:transform .24s var(--ease),box-shadow .24s var(--ease)}
.headline-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.headline-media{position:relative;overflow:hidden;min-height:280px}
.headline-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.headline-card:hover .headline-media img{transform:scale(1.04)}
.headline-body{padding:28px 26px;display:flex;flex-direction:column;gap:14px}
.headline-body h3{font-size:22px;line-height:1.45}
.headline-body h3 a{color:var(--ink)}
.headline-body h3 a:hover{color:var(--brand)}
.headline-body p{font-size:15px;color:var(--text);line-height:1.8}
.meta-row{display:flex;align-items:center;flex-wrap:wrap;gap:14px;font-size:13px;color:var(--muted);margin-top:auto}
.meta-row i{font-size:13px;margin-right:5px}
.badge-cat{display:inline-flex;align-items:center;font-size:12px;font-weight:600;color:var(--brand);background:var(--brand-tint);border-radius:var(--r-pill);padding:4px 12px}
.badge-hot{display:inline-flex;align-items:center;font-size:12px;font-weight:600;color:#fff;background:var(--accent);border-radius:var(--r-pill);padding:4px 12px}
.quick-panel{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden}
.quick-panel .qp-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line)}
.quick-panel .qp-head h3{font-size:16px;display:flex;align-items:center;gap:8px}
.quick-panel .qp-head h3 i{color:var(--accent)}
.quick-panel .qp-head a{font-size:13px;font-weight:600}
.quick-list li{border-bottom:1px dashed var(--line)}
.quick-list li:last-child{border-bottom:0}
.quick-list li a{display:flex;gap:14px;padding:16px 20px;transition:background-color .22s var(--ease)}
.quick-list li a:hover{background:var(--bg-alt)}
.quick-num{flex:0 0 auto;font-size:13px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;padding-top:2px}
.quick-text{min-width:0}
.quick-text strong{display:block;font-size:15px;font-weight:600;color:var(--ink);line-height:1.55}
.quick-list li a:hover .quick-text strong{color:var(--brand)}
.quick-text span{display:block;font-size:12.5px;color:var(--muted);margin-top:6px}

/* ============ 更新节奏条 ============ */
.pace-band{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.pace-grid{display:grid;grid-template-columns:repeat(4,1fr);padding:34px 0}
.pace-item{padding:0 26px;border-right:1px solid var(--line)}
.pace-item:last-child{border-right:0}
.pace-item i{font-size:20px;color:var(--brand);margin-bottom:12px;display:block}
.pace-item strong{display:block;font-size:16px;color:var(--ink);margin-bottom:6px}
.pace-item p{font-size:14px;color:var(--muted);line-height:1.8}

/* ============ 卡片流 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;transition:transform .24s var(--ease),box-shadow .24s var(--ease)}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.card:hover .card-media img{transform:scale(1.04)}
.card-media .card-badge{position:absolute;left:12px;top:12px}
.card-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.card-body h3{font-size:17px;line-height:1.5}
.card-body h3 a{color:var(--ink)}
.card-body h3 a:hover{color:var(--brand)}
.card-body p{font-size:14px;color:var(--text);line-height:1.8}
.card-body .meta-row{margin-top:auto;padding-top:4px;border-top:1px solid var(--line);font-size:12.5px}

/* ============ 频道切换胶囊 ============ */
.page-pills{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:40px}
.pill{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 20px;font-size:14px;font-weight:500;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;color:var(--text);transition:all .22s var(--ease)}
.pill:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-tint)}
.pill.active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.6fr);gap:48px;align-items:start}
.faq-intro{position:sticky;top:140px}
.faq-intro h2{margin-bottom:14px}
.faq-intro p{font-size:15px;color:var(--muted);line-height:1.9}
.faq-intro .link-more{margin-top:18px}
.accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent}
.accordion-item:first-child{border-top:1px solid var(--line)}
.accordion-button{display:flex;align-items:center;gap:14px;width:100%;padding:20px 8px;background:transparent;border:0;box-shadow:none;font-size:16px;font-weight:600;color:var(--ink);text-align:left;border-radius:0;transition:padding .24s var(--ease),box-shadow .24s var(--ease),color .22s var(--ease)}
.accordion-button:hover{color:var(--brand)}
.accordion-button:not(.collapsed){color:var(--ink);box-shadow:inset 3px 0 0 var(--brand);padding-left:18px;background:transparent}
.accordion-button:focus{box-shadow:inset 3px 0 0 var(--brand);outline:none}
.accordion-button::after{display:none}
.acc-icon{margin-left:auto;flex:0 0 auto;width:24px;height:24px;border-radius:50%;background:var(--brand-tint);color:var(--brand);display:inline-flex;align-items:center;justify-content:center;font-size:12px;transition:transform .24s var(--ease),background-color .22s var(--ease),color .22s var(--ease)}
.accordion-button:not(.collapsed) .acc-icon{transform:rotate(45deg);background:var(--brand);color:#fff}
.faq-num{flex:0 0 auto;font-size:13px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.faq-q{min-width:0}
.accordion-body{padding:4px 18px 20px 42px;font-size:15px;line-height:1.9;color:var(--text);background:transparent}
.accordion-collapse{background:transparent}

/* ============ CTA 条 ============ */
.cta-band{background:var(--brand-tint);border:1px solid rgba(24,87,196,.14);border-radius:var(--r-lg);padding:40px;display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-band h2{font-size:clamp(22px,2.4vw,28px);margin-bottom:10px}
.cta-band p{font-size:15px;color:var(--text);max-width:620px;line-height:1.85}
.cta-actions{display:flex;gap:14px;flex:0 0 auto}

/* ============ 页脚 ============ */
.site-footer{margin-top:88px;border-top:3px solid var(--brand);background:#fff}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding:56px 0 40px}
.foot-brand .logo{margin-bottom:16px}
.foot-brand p{font-size:14px;color:var(--muted);line-height:2;max-width:320px}
.qr-box{margin-top:18px;display:inline-flex;align-items:center;gap:10px;border:1px dashed var(--line);border-radius:var(--r-card);padding:12px 16px;color:var(--muted);font-size:13px}
.qr-box i{font-size:24px;color:var(--brand)}
.foot-col h4{margin-bottom:16px;font-size:15px}
.foot-col ul li{line-height:2.2}
.foot-col ul li a{font-size:14px;color:var(--text)}
.foot-col ul li a:hover{color:var(--brand)}
.contact-line{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text);line-height:2.2}
.contact-line i{color:var(--brand);font-size:14px;margin-top:7px}
.foot-bar{border-top:1px solid var(--line);padding:18px 0 26px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:var(--muted)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .hot-tags{display:none}
  .search-box{max-width:300px}
  .pace-item{padding:0 18px}
}
@media (max-width:991px){
  .section{padding:64px 0}
  .search-box{display:none}
  .burger{display:inline-flex}
  .top-actions .btn-ghost{display:none}
  .channel-more{display:none}
  .page-hero-inner{grid-template-columns:1fr;padding:40px 0 44px;gap:28px}
  .feature-layout{grid-template-columns:1fr}
  .headline-card{grid-template-columns:1fr}
  .headline-media{min-height:0;aspect-ratio:16/9}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .pace-grid{grid-template-columns:repeat(2,1fr);gap:28px 0}
  .pace-item{border-right:0;padding:0 20px}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .faq-intro{position:static}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px}
  .cta-actions{width:100%;flex-wrap:wrap}
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;padding:44px 0 32px}
  .site-footer{margin-top:64px}
  .mobile-drawer{display:block;position:fixed;left:0;right:0;top:0;bottom:0;background:rgba(16,27,51,.42);opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);z-index:1040}
  .mobile-drawer.open{opacity:1;visibility:visible}
  .drawer-panel{position:absolute;right:0;top:0;bottom:0;width:min(320px,86vw);background:#fff;padding:24px 22px;overflow-y:auto;transform:translateX(100%);transition:transform .28s var(--ease);box-shadow:var(--sh-3)}
  .mobile-drawer.open .drawer-panel{transform:translateX(0)}
  .drawer-panel h4{font-size:13px;color:var(--muted);font-weight:600;margin:22px 0 10px}
  .drawer-panel h4:first-of-type{margin-top:16px}
  .drawer-nav a{display:block;padding:13px 12px;border-radius:var(--r-btn);font-size:15px;color:var(--text);font-weight:500}
  .drawer-nav a:hover{background:var(--bg-alt);color:var(--brand)}
  .drawer-nav a.active{background:var(--brand-tint);color:var(--brand);font-weight:600}
  .drawer-search{display:flex;align-items:center;gap:10px;height:44px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-btn);background:var(--bg-alt);margin-top:20px}
  .drawer-search i{color:var(--muted)}
  .drawer-search input{border:0;background:transparent;flex:1;font-size:14px;min-width:0}
  .drawer-search input:focus{outline:none}
  .drawer-tags{display:flex;flex-wrap:wrap;gap:8px}
  .drawer-tags a{font-size:12.5px;background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-pill);padding:6px 12px;color:var(--text)}
  .drawer-tags a:hover{color:var(--brand);background:var(--brand-tint)}
}
@media (max-width:767px){
  .topbar,.site-header.scrolled .topbar{height:58px}
  .channelbar,.site-header.scrolled .channelbar{height:46px}
  .logo-text{font-size:17px}
  .channel-links a{padding:0 12px;font-size:14px}
  .channel-links a.active::after{left:12px;right:12px}
  .headline-body{padding:22px 20px}
  .headline-body h3{font-size:19px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .grid-3{grid-template-columns:1fr;gap:20px}
  .pace-grid{grid-template-columns:1fr;gap:24px}
  .pace-item{padding:0 16px;border-left:3px solid var(--brand-tint)}
  .cta-band{padding:26px 22px}
  .cta-actions .btn{width:100%}
  .accordion-body{padding-left:20px}
  .accordion-button{font-size:15px;padding:16px 6px;gap:10px}
  .foot-bar{flex-direction:column;gap:8px}
}
@media (max-width:575px){
  .section{padding:48px 0}
  .hero-lead{font-size:16px}
  .hero-side{padding:20px}
  .page-hero-inner{padding:32px 0 36px}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .page-pills{gap:8px}
  .pill{padding:0 16px;font-size:13px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* roulang page: article */
:root{
  --brand:#1857C4;
  --brand-dark:#1348A6;
  --brand-soft:#E7EFFD;
  --brand-tint:#EEF4FF;
  --accent:#FF7A2F;
  --accent-soft:#FFF1E7;
  --ink:#101B33;
  --text:#3D4B66;
  --muted:#7A88A3;
  --line:#E6ECF5;
  --bg:#FFFFFF;
  --bg-alt:#F5F8FD;
  --ok:#0F9E77;
  --warn:#D97706;
  --err:#DC4B3E;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --r-btn:10px;
  --r-card:14px;
  --r-lg:20px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(16,27,51,.04),0 2px 8px rgba(24,87,196,.06);
  --sh-2:0 10px 28px rgba(24,87,196,.12);
  --sh-3:0 16px 40px rgba(16,27,51,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-primary:#1857C4;
  --bs-primary-rgb:24,87,196;
  --bs-link-color:#1857C4;
  --bs-link-hover-color:#1348A6;
  --bs-body-font-family:var(--font);
  --bs-body-color:#3D4B66;
  --bs-border-radius:10px;
  --bs-border-color:#E6ECF5;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--brand-dark)}
button,input{font:inherit}
ul,ol{margin:0}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:700}
p{margin:0}
::selection{background:var(--brand);color:#fff}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 clamp(16px,4vw,32px)}

/* ---------- 按钮 ---------- */
.btn-main,.btn-ghost,.btn-light,.btn-text{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;border-radius:var(--r-btn);cursor:pointer;border:1px solid transparent;transition:all .22s var(--ease);text-align:center}
.btn-main{height:48px;padding:0 24px;background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(24,87,196,.2)}
.btn-main:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(24,87,196,.26)}
.btn-main:active{transform:translateY(0)}
.btn-main.sm{height:38px;padding:0 16px;font-size:14px;box-shadow:none}
.btn-ghost{height:48px;padding:0 24px;background:#fff;color:var(--brand);border-color:rgba(24,87,196,.2)}
.btn-ghost:hover{border-color:var(--brand);background:var(--brand-tint);color:var(--brand-dark)}
.btn-light{height:48px;padding:0 26px;background:#fff;color:var(--brand);font-weight:700}
.btn-light:hover{background:var(--brand-tint);color:var(--brand-dark);transform:translateY(-1px)}
.btn-text{color:var(--brand);font-weight:600;padding:4px 0;background:none;border:0}
.btn-text i{transition:transform .22s var(--ease)}
.btn-text:hover{color:var(--brand-dark)}
.btn-text:hover i{transform:translateX(3px)}

/* ---------- 徽章 ---------- */
.chip{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.2px;white-space:nowrap}
.chip-cat{background:var(--brand-soft);color:var(--brand)}
.chip-hot{background:var(--accent);color:#fff}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s var(--ease);
}
.site-header.is-stuck{box-shadow:0 6px 20px rgba(16,27,51,.08)}
.brand-bar{height:64px;transition:height .22s var(--ease)}
.site-header.is-stuck .brand-bar{height:56px}
.brand-inner{display:flex;align-items:center;gap:20px;height:100%}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink)}
.logo:hover{color:var(--ink)}
.logo-mark{
  position:relative;width:32px;height:32px;flex:0 0 auto;border-radius:9px;
  background:linear-gradient(140deg,#1E63D8,#1348A6);
  box-shadow:0 4px 12px rgba(24,87,196,.28);
}
.logo-mark::before{
  content:"";position:absolute;inset:8px 7px 8px 7px;
  background:#fff;
  clip-path:polygon(50% 0,100% 100%,0 100%);
  border-radius:2px;
}
.logo-mark::after{
  content:"";position:absolute;right:-3px;top:-3px;width:9px;height:9px;border-radius:50%;
  background:var(--accent);border:2px solid #fff;
}
.logo-text{display:flex;flex-direction:column;font-size:19px;font-weight:700;line-height:1.1;letter-spacing:.4px}
.logo-text small{font-size:10px;font-weight:500;color:var(--muted);letter-spacing:2px;margin-top:2px}
.search-box{
  flex:1 1 auto;max-width:400px;height:40px;display:flex;align-items:center;gap:10px;
  padding:0 6px 0 14px;background:var(--bg-alt);border:1px solid var(--line);border-radius:999px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
}
.search-box:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(24,87,196,.12)}
.search-box i{color:var(--muted);font-size:14px}
.search-box input{flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;font-size:14px;color:var(--ink)}
.search-box input::placeholder{color:#9AA7BF}
.search-box button{height:30px;padding:0 14px;border:0;border-radius:999px;background:var(--brand);color:#fff;font-size:13px;font-weight:600;cursor:pointer;transition:background .22s var(--ease)}
.search-box button:hover{background:var(--brand-dark)}
.hot-tags{display:flex;gap:8px;flex:0 0 auto}
.hot-tags a{font-size:12px;color:var(--muted);background:var(--bg-alt);border-radius:999px;padding:5px 11px;line-height:1.4;transition:all .22s var(--ease)}
.hot-tags a:hover{background:var(--brand-soft);color:var(--brand)}
.brand-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;margin-left:auto}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-btn);border:1px solid var(--line);background:#fff;color:var(--text);
  cursor:pointer;transition:all .22s var(--ease);
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-tint)}
.search-toggle,.menu-toggle{display:none}
.channel-bar{height:48px;border-top:1px solid var(--line);transition:height .22s var(--ease)}
.site-header.is-stuck .channel-bar{height:44px}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:100%}
.channel-nav{display:flex;align-items:stretch;height:100%;gap:2px;overflow-x:auto;scrollbar-width:none}
.channel-nav::-webkit-scrollbar{display:none}
.channel-nav a{
  position:relative;display:inline-flex;align-items:center;height:100%;padding:0 15px;
  font-size:15px;font-weight:500;color:var(--text);white-space:nowrap;
}
.channel-nav a::after{
  content:"";position:absolute;left:15px;right:15px;bottom:0;height:3px;border-radius:3px 3px 0 0;
  background:var(--brand);transform:scaleX(0);transform-origin:center;transition:transform .22s var(--ease);
}
.channel-nav a:hover{color:var(--brand)}
.channel-nav a:hover::after{transform:scaleX(1)}
.channel-nav a.active{color:var(--brand);font-weight:600}
.channel-nav a.active::after{transform:scaleX(1)}
.channel-side{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);white-space:nowrap}
.channel-side .dot-live{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(15,158,119,.14)}
.mobile-search{
  display:none;position:absolute;left:0;right:0;top:100%;
  padding:14px clamp(16px,4vw,32px);background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 12px 24px rgba(16,27,51,.08);
}
.site-header.search-open .mobile-search{display:block}
.mobile-search .search-box{display:flex;max-width:none;background:#fff}

/* ---------- 移动抽屉 ---------- */
.offcanvas{border:0 !important;border-radius:20px 0 0 20px}
.offcanvas-header{border-bottom:1px solid var(--line);padding:18px 22px}
.offcanvas-title{font-size:16px;color:var(--ink)}
.offcanvas-body{padding:18px 22px}
.off-nav{display:flex;flex-direction:column;gap:4px}
.off-nav a{display:flex;align-items:center;justify-content:space-between;padding:13px 14px;border-radius:12px;font-size:15px;color:var(--text);font-weight:500}
.off-nav a:hover{background:var(--bg-alt);color:var(--brand)}
.off-nav a.active{background:var(--brand-tint);color:var(--brand);font-weight:600}
.off-foot{margin-top:22px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);line-height:2}

/* ---------- 文章头部 ---------- */
.page-head{padding:34px 0 30px;background:var(--bg-alt);border-bottom:1px solid var(--line)}
.breadcrumb-trail{display:flex;align-items:center;flex-wrap:wrap;gap:6px;font-size:13px;color:var(--muted);margin-bottom:16px}
.breadcrumb-trail a{color:var(--brand)}
.breadcrumb-trail a:hover{color:var(--brand-dark);text-decoration:underline}
.breadcrumb-trail .sep{color:#C3CDDD}
.breadcrumb-trail .current{max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--muted)}
.page-title{
  font-size:clamp(30px,4.4vw,46px);line-height:1.25;font-weight:700;letter-spacing:-.5px;
  color:var(--ink);margin-bottom:18px;max-width:24ch;
}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px 14px;font-size:13px;color:var(--muted)}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px}
.article-meta .meta-item i{color:#9AA7BF;font-size:13px}
.meta-divider{width:1px;height:14px;background:var(--line)}

/* ---------- 文章布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:52px;
  padding:48px 0 72px;align-items:start;
}
.article-main{max-width:820px;width:100%;min-width:0}
.article-side{position:sticky;top:120px;min-width:0}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:20px;margin-bottom:20px;
}
.side-card h3{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--ink);margin-bottom:14px}
.side-card h3::before{content:"";width:4px;height:14px;border-radius:4px;background:var(--accent)}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:360px;overflow:auto}
.toc-link{
  display:block;font-size:14px;line-height:1.55;color:var(--text);
  padding:8px 10px;border-radius:8px;border-left:2px solid transparent;
  transition:all .2s var(--ease);
}
.toc-link.sub{padding-left:22px;font-size:13px;color:var(--muted)}
.toc-link:hover{background:var(--bg-alt);color:var(--brand)}
.toc-link.active{background:var(--brand-tint);color:var(--brand);border-left-color:var(--brand);font-weight:600}
.mini-list{display:flex;flex-direction:column;gap:14px}
.mini-list a{display:block;font-size:14px;line-height:1.55;color:var(--ink);font-weight:500}
.mini-list a:hover{color:var(--brand)}
.mini-list span{display:block;font-size:12px;color:var(--muted);margin-top:4px}

/* ---------- 正文排版 ---------- */
.post-content{font-size:17px;line-height:1.9;color:var(--text)}
.post-content > * + *{margin-top:20px}
.post-content h2{
  position:relative;font-size:clamp(23px,2.6vw,30px);line-height:1.3;font-weight:700;
  color:var(--ink);padding-left:16px;margin-top:44px;margin-bottom:16px;
}
.post-content h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:4px;background:var(--brand);
}
.post-content h3{font-size:20px;font-weight:600;color:var(--ink);line-height:1.4;margin-top:32px;margin-bottom:12px}
.post-content ul,.post-content ol{padding-left:24px}
.post-content li{margin:8px 0}
.post-content ul li::marker{color:var(--brand)}
.post-content ol li::marker{color:var(--brand);font-weight:700}
.post-content blockquote{
  margin:24px 0;padding:16px 20px;background:var(--brand-tint);
  border-left:3px solid var(--brand);border-radius:0 12px 12px 0;color:#2C3A57;
}
.post-content img{border-radius:var(--r-img);border:1px solid rgba(16,27,51,.06);margin:24px auto}
.post-content table{
  width:100%;border-collapse:collapse;font-size:15px;margin:24px 0;
  border:1px solid var(--line);border-radius:var(--r-img);overflow:hidden;
}
.post-content th{background:var(--bg-alt);font-weight:600;color:var(--ink)}
.post-content th,.post-content td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.post-content tr:last-child td{border-bottom:0}
.post-content a{
  color:var(--brand);background-image:linear-gradient(var(--brand),var(--brand));
  background-repeat:no-repeat;background-position:0 100%;background-size:0 1px;
  transition:background-size .25s var(--ease),color .2s var(--ease);
}
.post-content a:hover{color:var(--brand-dark);background-size:100% 1px}
.post-content code{background:var(--bg-alt);padding:2px 7px;border-radius:6px;font-size:.9em;color:var(--brand-dark)}
.post-content strong{color:var(--ink)}
.post-content figure{margin:24px 0}
.post-content figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px}

/* ---------- 空态 ---------- */
.empty-state{
  text-align:center;padding:64px 24px;border:1px dashed var(--line);
  border-radius:var(--r-lg);background:var(--bg-alt);
}
.empty-icon{
  width:96px;height:96px;margin:0 auto 20px;border-radius:50%;
  border:2px solid rgba(24,87,196,.15);display:flex;align-items:center;justify-content:center;
  color:var(--brand);font-size:32px;background:#fff;
}
.empty-state p{font-size:16px;color:var(--text);margin-bottom:18px}

/* ---------- 上下篇 ---------- */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:48px}
.post-nav a{
  display:block;padding:18px 20px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.post-nav a:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(24,87,196,.3)}
.pn-label{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--muted);margin-bottom:8px}
.pn-title{font-size:15px;font-weight:600;color:var(--ink);line-height:1.55}
.post-nav a:hover .pn-title{color:var(--brand)}
.back-row{margin-top:24px;display:flex;align-items:center;gap:20px;flex-wrap:wrap}

/* ---------- 板块 ---------- */
.section{padding:72px 0}
.section.alt{background:var(--bg-alt)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap}
.section-head h2{font-size:clamp(24px,3vw,32px);line-height:1.3;letter-spacing:-.4px}
.section-head p{font-size:14px;color:var(--muted);margin-top:8px;max-width:60ch}

/* ---------- 卡片 ---------- */
.card{
  display:flex;flex-direction:column;height:100%;overflow:hidden;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.card-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt)}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.card:hover .card-thumb img{transform:scale(1.04)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.card-body h3{font-size:17px;font-weight:600;line-height:1.5;color:var(--ink)}
.card:hover .card-body h3{color:var(--brand)}
.card-body p{font-size:14px;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12px;color:var(--muted)}
.card-foot .date{display:inline-flex;align-items:center;gap:6px}

/* ---------- CTA 条 ---------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  background:var(--brand);border-radius:var(--r-lg);padding:40px;
  box-shadow:0 18px 40px rgba(24,87,196,.22);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);line-height:1.35;margin-bottom:10px;max-width:26ch}
.cta-band p{color:rgba(255,255,255,.84);font-size:15px;max-width:52ch}

/* ---------- 页脚 ---------- */
.site-footer{background:#0F1B33;color:#A9B7CD;border-top:3px solid var(--brand);padding-top:56px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:38px;padding-bottom:38px}
.site-footer .logo{color:#fff}
.site-footer .logo:hover{color:#fff}
.site-footer .logo-text small{color:#7E8DA6}
.foot-brand p{font-size:14px;line-height:1.9;margin:16px 0 20px;max-width:330px;color:#98A6BC}
.qr-box{display:inline-flex;align-items:center;gap:10px;padding:10px 14px;border:1px dashed rgba(255,255,255,.22);border-radius:12px;font-size:13px;color:#C4D0E4}
.qr-box i{font-size:20px;color:#7FA8EA}
.foot-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.foot-col ul{list-style:none;padding:0;margin:0}
.foot-col li{margin-bottom:10px}
.foot-col a{font-size:14px;color:#A9B7CD}
.foot-col a:hover{color:#fff}
.contact-line{display:flex;align-items:flex-start;gap:10px;font-size:14px;margin-bottom:12px;color:#A9B7CD}
.contact-line i{color:#7FA8EA;margin-top:4px}
.foot-bar{
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.1);padding:18px 0 24px;font-size:13px;color:#8B99B0;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hot-tags{display:none}
}
@media (max-width:991px){
  .brand-inner{gap:12px}
  .brand-inner > .search-box{display:none}
  .search-toggle,.menu-toggle{display:inline-flex}
  .brand-actions .btn-main{display:none}
  .channel-side{display:none}
  .article-layout{grid-template-columns:1fr;gap:36px;padding:36px 0 56px}
  .article-side{position:static}
  .side-stack{display:grid;grid-template-columns:1fr 1fr;gap:20px}
  .side-card{margin-bottom:0}
  .section{padding:56px 0}
  .cta-band{padding:32px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:767px){
  .brand-bar{height:58px}
  .logo-text{font-size:17px}
  .page-head{padding:26px 0 24px}
  .page-title{max-width:none}
  .breadcrumb-trail .current{white-space:normal}
  .post-content{font-size:16px;line-height:1.85}
  .section-head{align-items:flex-start}
}
@media (max-width:575px){
  .side-stack{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .cta-band{padding:26px 20px;text-align:center;justify-content:center}
  .cta-band h2,.cta-band p{max-width:none}
  .btn-light,.btn-main{width:100%}
  .empty-state{padding:48px 18px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* roulang page: category2 */
:root{
  --brand:#1857C4;
  --brand-dark:#1348A6;
  --brand-soft:#E7EFFD;
  --brand-tint:#EEF4FF;
  --accent:#FF7A2F;
  --accent-soft:#FFF1E7;
  --ink:#101B33;
  --text:#3D4B66;
  --muted:#7A88A3;
  --line:#E6ECF5;
  --bg:#FFFFFF;
  --bg-alt:#F5F8FD;
  --ok:#0F9E77;
  --warn:#D97706;
  --err:#DC4B3E;
  --r-btn:10px;
  --r-card:14px;
  --r-lg:20px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(16,27,51,.04),0 2px 8px rgba(24,87,196,.06);
  --sh-2:0 10px 28px rgba(24,87,196,.12);
  --sh-3:0 16px 40px rgba(16,27,51,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-primary:#1857C4;
  --bs-primary-rgb:24,87,196;
  --bs-link-color:#1857C4;
  --bs-link-hover-color:#1348A6;
  --bs-body-color:#3D4B66;
  --bs-body-bg:#FFFFFF;
  --bs-border-color:#E6ECF5;
  --bs-border-radius:10px;
  --bs-body-font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{color:var(--ink);font-weight:700;margin:0}
p{margin:0}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand);text-decoration:none;transition:color .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease)}
a:hover{color:var(--brand-dark)}
button{font:inherit;cursor:pointer}
ul{list-style:none;margin:0;padding:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 clamp(16px,4vw,32px)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s var(--ease);
}
.site-header.is-stuck{box-shadow:0 6px 20px rgba(16,27,51,.08)}
.top-line{height:64px;transition:height .24s var(--ease)}
.site-header.is-stuck .top-line{height:56px}
.top-line-inner{display:flex;align-items:center;gap:18px;height:100%}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink)}
.logo-mark{
  position:relative;width:34px;height:34px;border-radius:10px;
  background:var(--brand);box-shadow:0 4px 12px rgba(24,87,196,.28);flex:0 0 auto;
}
.logo-mark::before{content:"";position:absolute;left:8px;top:9px;width:6px;height:16px;border-radius:2px;background:#fff}
.logo-mark::after{content:"";position:absolute;left:18px;top:9px;width:6px;height:16px;border-radius:2px;background:var(--accent)}
.logo-text{display:flex;flex-direction:column;font-size:19px;font-weight:700;line-height:1.15;color:var(--ink);letter-spacing:.01em}
.logo-text small{font-size:10px;font-weight:500;letter-spacing:.16em;color:var(--muted);margin-top:2px}
.search-box{position:relative;flex:1 1 auto;max-width:400px}
.search-box input{
  width:100%;height:40px;border-radius:999px;border:1px solid var(--line);
  background:#F5F8FD;padding:0 46px 0 16px;font-size:14px;color:var(--ink);
  transition:background-color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.search-box input::placeholder{color:#9AA6BE}
.search-box input:focus{background:#fff;border-color:var(--brand);box-shadow:0 0 0 3px rgba(24,87,196,.12);outline:none}
.search-box button{
  position:absolute;right:5px;top:5px;width:30px;height:30px;border:0;border-radius:50%;
  background:transparent;color:var(--muted);display:inline-flex;align-items:center;justify-content:center;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.search-box button:hover{color:var(--brand);background:var(--brand-soft)}
.hot-tags{display:flex;align-items:center;gap:8px}
.hot-tags a{
  font-size:12px;padding:5px 11px;border-radius:999px;background:#F5F8FD;color:var(--text);
  white-space:nowrap;transition:background-color .2s var(--ease),color .2s var(--ease);
}
.hot-tags a:hover{background:var(--brand-soft);color:var(--brand-dark)}
.head-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.search-toggle,.menu-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--text);align-items:center;justify-content:center;
  transition:border-color .2s var(--ease),color .2s var(--ease),background-color .2s var(--ease);
}
.search-toggle:hover,.menu-toggle:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-tint)}
.channel-line{border-top:1px solid var(--line);height:48px;transition:height .24s var(--ease)}
.site-header.is-stuck .channel-line{height:44px}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:100%}
.channel-nav{display:flex;align-items:center;gap:2px;height:100%;overflow-x:auto;scrollbar-width:none}
.channel-nav::-webkit-scrollbar{display:none}
.channel-nav a{
  position:relative;display:inline-flex;align-items:center;height:100%;padding:0 16px;
  font-size:15px;font-weight:500;color:var(--text);white-space:nowrap;
}
.channel-nav a::after{
  content:"";position:absolute;left:16px;right:16px;bottom:0;height:3px;
  border-radius:3px 3px 0 0;background:transparent;transition:background-color .22s var(--ease);
}
.channel-nav a:hover{color:var(--brand)}
.channel-nav a.active{color:var(--brand);font-weight:700}
.channel-nav a.active::after{background:var(--brand)}
.channel-aside{font-size:13px;color:var(--muted);white-space:nowrap}
.mobile-search{display:none;border-top:1px solid var(--line);padding:10px 0 14px}
.site-header.search-open .mobile-search{display:block}
.mobile-search .search-box{max-width:none}

/* 按钮 */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);border:1px solid transparent;
  background:var(--brand);color:#fff!important;font-size:15px;font-weight:600;
  transition:background-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-main:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 10px 22px rgba(24,87,196,.24)}
.btn-main:active{transform:translateY(0);box-shadow:none}
.btn-main.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  border:1px solid rgba(24,87,196,.2);background:#fff;color:var(--brand);font-size:15px;font-weight:600;
  transition:border-color .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.btn-ghost:hover{border-color:var(--brand);background:var(--brand-tint);color:var(--brand-dark);transform:translateY(-1px)}
.btn-text{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--brand)}
.btn-text i{font-size:12px;transition:transform .22s var(--ease)}
.btn-text:hover i{transform:translateX(3px)}
.btn-white{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-btn);background:#fff;color:var(--brand-dark)!important;
  font-size:15px;font-weight:700;border:1px solid transparent;
  transition:background-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-white:hover{background:#F0F5FF;transform:translateY(-1px);box-shadow:0 12px 24px rgba(6,26,70,.18)}

/* 面包屑 */
.breadcrumb-bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px}
.breadcrumb-bar a{color:var(--brand)}
.breadcrumb-bar a:hover{color:var(--brand-dark)}
.breadcrumb-bar .sep{color:#C3CEDF}
.breadcrumb-bar .current{color:var(--muted)}

/* Hero */
.hero{background:var(--bg-alt);border-bottom:1px solid var(--line);padding:36px 0 64px}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:18px;
  font-size:13px;font-weight:600;color:var(--brand-dark);
  background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 14px;
}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(30px,4.4vw,46px);line-height:1.25;font-weight:700;letter-spacing:-.01em;margin-bottom:16px}
.hero-lead{font-size:17px;line-height:1.85;color:var(--text);max-width:640px;margin-bottom:26px}
.hero-cta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-bottom:28px}
.stat-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;border-top:1px solid var(--line);padding-top:22px}
.stat-num{font-size:clamp(18px,2vw,22px);font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.4}
.stat-label{font-size:13px;color:var(--muted);margin-top:2px}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);
  border:1px solid rgba(16,27,51,.06);box-shadow:var(--sh-1);
}
.hero-card{
  position:absolute;left:-22px;bottom:26px;min-width:186px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:16px 20px;box-shadow:var(--sh-3);
}
.hero-card .n{font-size:26px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.25}
.hero-card .t{font-size:13px;color:var(--muted);margin-top:2px}

/* 区块通用 */
.section{padding:88px 0}
.section.alt{background:var(--bg-alt)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.sec-kicker{font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.08em;margin-bottom:10px}
.sec-title{font-size:clamp(24px,3vw,34px);line-height:1.3;font-weight:700;letter-spacing:-.01em}
.sec-desc{margin-top:10px;font-size:15px;line-height:1.8;color:var(--muted);max-width:640px}

/* 筛选 */
.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding-bottom:22px;margin-bottom:34px;border-bottom:1px solid var(--line)}
.pill{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line);background:#fff;color:var(--text);font-size:14px;font-weight:500;
  transition:border-color .2s var(--ease),color .2s var(--ease),background-color .2s var(--ease);
}
.pill:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-tint)}
.pill.active{background:var(--brand);border-color:var(--brand);color:#fff}
.filter-note{margin-left:auto;font-size:13px;color:var(--muted)}

/* 时间轴 */
.timeline{position:relative;padding-top:6px}
.tl-item{display:grid;grid-template-columns:150px 1fr;gap:26px}
.tl-date{padding-top:2px}
.date-badge{
  display:inline-flex;align-items:center;gap:7px;white-space:nowrap;
  font-size:13px;font-weight:600;color:var(--brand-dark);background:var(--brand-soft);
  border-radius:999px;padding:7px 14px;font-variant-numeric:tabular-nums;
}
.badge-hot{
  display:inline-flex;align-items:center;margin-top:8px;
  background:var(--accent);color:#fff;font-size:11px;font-weight:600;
  border-radius:999px;padding:3px 9px;letter-spacing:.02em;
}
.tl-body{position:relative;border-left:2px solid var(--line);padding:0 0 32px 26px}
.tl-item:last-child .tl-body{padding-bottom:0;border-left-color:transparent}
.tl-body::before{
  content:"";position:absolute;left:-5px;top:7px;width:12px;height:12px;border-radius:50%;
  background:#fff;border:3px solid var(--brand);
}
.tl-title{font-size:19px;line-height:1.5;font-weight:600;margin-bottom:8px}
.tl-desc{font-size:15px;line-height:1.8;color:var(--text);margin-bottom:12px;max-width:760px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  font-size:12px;padding:4px 11px;border-radius:999px;background:#F5F8FD;
  border:1px solid var(--line);color:var(--muted);
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.tag:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:transparent}

/* 新服速览横滑卡 */
.open-scroller{
  display:grid;grid-auto-flow:column;grid-auto-columns:minmax(276px,1fr);gap:20px;
  overflow-x:auto;padding-bottom:12px;scroll-snap-type:x mandatory;
  scrollbar-width:thin;
}
.open-scroller::-webkit-scrollbar{height:6px}
.open-scroller::-webkit-scrollbar-thumb{background:#D7E1F2;border-radius:999px}
.open-card{
  scroll-snap-align:start;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.open-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.oc-media{overflow:hidden}
.oc-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s var(--ease)}
.open-card:hover .oc-media img{transform:scale(1.04)}
.oc-body{padding:20px 22px 22px}
.oc-badge{
  display:inline-flex;align-items:center;gap:6px;margin-bottom:12px;
  font-size:12px;font-weight:600;color:var(--brand-dark);background:var(--brand-tint);
  border-radius:999px;padding:4px 11px;
}
.oc-title{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:8px}
.oc-desc{font-size:14px;line-height:1.8;color:var(--muted);margin-bottom:14px}
.oc-meta{display:flex;flex-wrap:wrap;gap:14px;font-size:13px;color:var(--muted)}
.oc-meta span{display:inline-flex;align-items:center;gap:6px}
.oc-meta i{color:var(--brand)}

/* 活动类型条 */
.type-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
}
.type-cell{padding:30px 26px;border-right:1px solid var(--line)}
.type-cell:last-child{border-right:0}
.type-cell i{display:block;font-size:22px;color:var(--brand);margin-bottom:14px}
.type-cell h3{font-size:17px;font-weight:600;margin-bottom:8px}
.type-cell p{font-size:14px;line-height:1.8;color:var(--muted)}

/* 步骤 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{border-top:2px solid var(--brand-soft);padding-top:18px}
.step .num{display:block;font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.1em;font-variant-numeric:tabular-nums}
.step h3{font-size:17px;font-weight:600;margin:10px 0 8px}
.step p{font-size:14px;line-height:1.8;color:var(--muted)}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:.78fr 1.22fr;gap:48px;align-items:start}
.faq-aside{position:sticky;top:118px}
.faq-aside .btn-text{margin-top:18px}
.faq-list .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent}
.faq-list .accordion-button{
  position:relative;background:transparent;box-shadow:none;border-radius:0!important;
  padding:22px 48px 22px 46px;font-size:16px;font-weight:600;color:var(--ink);
  transition:background-color .22s var(--ease),color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-list .accordion-button:focus{box-shadow:0 0 0 3px rgba(24,87,196,.12);z-index:2}
.faq-list .accordion-button:not(.collapsed){
  background:var(--bg-alt);color:var(--brand-dark);box-shadow:inset 3px 0 0 var(--brand);
}
.faq-num{
  position:absolute;left:0;top:24px;font-size:13px;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;letter-spacing:.04em;
}
.faq-list .accordion-button::before{
  content:"";position:absolute;right:20px;top:calc(50% - 1px);width:14px;height:2px;
  background:var(--muted);transition:background-color .22s var(--ease),transform .24s var(--ease);
}
.faq-list .accordion-button::after{
  content:"";position:absolute;right:26px;top:calc(50% - 7px);width:2px;height:14px;
  background:var(--muted);background-image:none;transform:none;border-radius:2px;
  transition:background-color .22s var(--ease),transform .24s var(--ease);
}
.faq-list .accordion-button:not(.collapsed)::before{background:var(--brand)}
.faq-list .accordion-button:not(.collapsed)::after{background:var(--brand);transform:scaleY(0)}
.faq-list .accordion-body{
  background:var(--bg-alt);padding:0 48px 22px 46px;font-size:15px;line-height:1.85;color:var(--text);
}

/* CTA */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  background:var(--brand);border-radius:var(--r-lg);padding:44px 40px;box-shadow:0 18px 40px rgba(24,87,196,.22);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);line-height:1.35;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.86);font-size:15px;line-height:1.8;max-width:620px}
.cta-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.cta-band .btn-text{color:#fff}
.cta-band .btn-text:hover{color:#DCE8FF}

/* 页脚 */
.site-footer{background:#fff;border-top:3px solid var(--brand);padding-top:56px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.foot-brand .logo{margin-bottom:16px}
.foot-brand p{font-size:14px;line-height:2;color:var(--muted);max-width:330px;margin-bottom:18px}
.qr-box{
  display:inline-flex;align-items:center;gap:10px;padding:10px 14px;
  border:1px dashed var(--line);border-radius:var(--r-img);font-size:13px;color:var(--muted);
}
.qr-box i{font-size:20px;color:var(--brand)}
.foot-col h4{font-size:15px;font-weight:600;margin-bottom:14px}
.foot-col li{margin-bottom:10px}
.foot-col a{font-size:14px;line-height:2.2;color:var(--muted)}
.foot-col a:hover{color:var(--brand)}
.contact-line{display:flex;align-items:flex-start;gap:10px;font-size:14px;line-height:1.9;color:var(--muted);margin-bottom:12px}
.contact-line i{color:var(--brand);margin-top:5px}
.foot-bar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding:18px 0;font-size:13px;color:var(--muted);
}

/* 抽屉 */
.offcanvas{border:0}
.offcanvas-header{border-bottom:1px solid var(--line);padding:18px 22px}
.offcanvas-title{font-size:17px}
.offcanvas-body{padding:18px 22px 28px}
.drawer-nav li{margin-bottom:4px}
.drawer-nav a{display:block;padding:12px 14px;border-radius:var(--r-btn);font-size:15px;color:var(--text)}
.drawer-nav a:hover{background:var(--brand-tint);color:var(--brand-dark)}
.drawer-nav a.active{background:var(--brand-soft);color:var(--brand-dark);font-weight:700}
.drawer-hot{margin-top:22px;padding-top:18px;border-top:1px solid var(--line)}
.drawer-hot-title{display:block;font-size:13px;color:var(--muted);margin-bottom:12px}
.hot-tags-drawer{flex-wrap:wrap;display:flex}

/* 响应式 */
@media (max-width:1199px){
  .top-line .hot-tags{display:none}
}
@media (max-width:991px){
  .search-box.desktop-search{display:none}
  .search-toggle{display:inline-flex}
  .menu-toggle{display:inline-flex}
  .hero{padding:28px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-card{position:static;display:inline-block;margin-top:-46px;margin-left:20px;box-shadow:var(--sh-2)}
  .section{padding:64px 0}
  .type-grid{grid-template-columns:1fr 1fr}
  .type-cell{border-bottom:1px solid var(--line)}
  .type-cell:nth-child(2n){border-right:0}
  .type-cell:nth-child(n+3){border-bottom:0}
  .steps{grid-template-columns:1fr 1fr}
  .faq-grid{grid-template-columns:1fr;gap:26px}
  .faq-aside{position:static}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:36px 28px}
}
@media (max-width:767px){
  .tl-item{grid-template-columns:1fr;gap:14px}
  .tl-body{padding-left:20px}
  .tl-body::before{left:-4px}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
  .filter-note{margin-left:0;width:100%}
  .open-scroller{grid-auto-columns:82%}
  .steps{grid-template-columns:1fr;gap:22px}
  .faq-list .accordion-button{padding:18px 42px 18px 40px;font-size:15px}
  .faq-num{top:20px}
  .faq-list .accordion-body{padding:0 42px 20px 40px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .cta-actions{width:100%}
}
@media (max-width:575px){
  .top-line{height:58px}
  .logo-text{font-size:17px}
  .logo-text small{display:none}
  .head-actions .btn-main{display:none}
  .stat-strip{grid-template-columns:1fr 1fr;gap:14px}
  .stat-strip .stat:last-child{grid-column:span 2}
  .type-grid{grid-template-columns:1fr}
  .type-cell{border-right:0;border-bottom:1px solid var(--line)}
  .type-cell:last-child{border-bottom:0}
  .hero-card{margin-top:-40px;margin-left:12px;min-width:0}
  .cta-band{padding:30px 22px;border-radius:16px}
  .btn-main,.btn-ghost,.btn-white{width:100%}
  .hero-cta .btn-text{width:100%;justify-content:flex-start}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important;animation:none!important}
}

/* roulang page: category3 */
:root{
  --bs-primary:#1857C4;
  --bs-primary-rgb:24,87,196;
  --bs-link-color:#1857C4;
  --bs-link-hover-color:#1348A6;
  --bs-body-color:#3D4B66;
  --bs-body-font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --bs-border-color:#E6ECF5;
  --bs-border-radius:14px;
  --brand:#1857C4;
  --brand-dark:#1348A6;
  --brand-soft:#E7EFFD;
  --brand-light:#EEF4FF;
  --accent:#FF7A2F;
  --accent-soft:#FFF1E7;
  --ink:#101B33;
  --text:#3D4B66;
  --muted:#7A88A3;
  --line:#E6ECF5;
  --bg:#FFFFFF;
  --bg-alt:#F5F8FD;
  --ok:#0F9E77;
  --warn:#D97706;
  --err:#DC4B3E;
  --r-btn:10px;
  --r-card:14px;
  --r-lg:20px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,27,51,.04),0 2px 8px rgba(24,87,196,.06);
  --sh-2:0 10px 28px rgba(24,87,196,.12);
  --sh-3:0 16px 40px rgba(16,27,51,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.3;}
h1{font-size:clamp(30px,4.4vw,46px);line-height:1.25;font-weight:700;}
h2{font-size:clamp(24px,3vw,34px);line-height:1.3;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-dark);}
img{max-width:100%;display:block;}
button,input{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 clamp(16px,4vw,32px);}
.sec{padding:88px 0;}
.sec-alt{background:var(--bg-alt);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.sec-head p{margin-top:10px;font-size:15px;color:var(--muted);max-width:640px;}
.sec-link{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;white-space:nowrap;}
.sec-link i{font-size:12px;transition:transform .22s var(--ease);}
.sec-link:hover i{transform:translateX(3px);}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--brand);background:var(--brand-light);border-radius:var(--r-pill);padding:5px 12px;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px) saturate(160%);-webkit-backdrop-filter:blur(8px) saturate(160%);
  border-bottom:1px solid transparent;transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:0 4px 18px rgba(16,27,51,.06);}
.brand-row{height:64px;display:flex;align-items:center;transition:height .24s var(--ease);}
.site-header.scrolled .brand-row{height:56px;}
.brand-inner{display:flex;align-items:center;gap:18px;width:100%;}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{position:relative;width:34px;height:34px;border-radius:10px;background:var(--brand);box-shadow:0 6px 14px rgba(24,87,196,.28);}
.logo-mark::after{content:"";position:absolute;left:12px;top:10px;width:0;height:0;border-left:9px solid #fff;border-top:6px solid transparent;border-bottom:6px solid transparent;}
.logo-text{display:flex;flex-direction:column;font-size:17px;font-weight:700;color:var(--ink);line-height:1.1;}
.logo-text small{font-size:10px;font-weight:500;letter-spacing:.14em;color:var(--muted);margin-top:2px;}
.search-box{flex:1 1 auto;max-width:360px;display:flex;align-items:center;gap:8px;background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-pill);padding:4px 4px 4px 14px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(24,87,196,.12);background:#fff;}
.search-box i{color:var(--muted);font-size:13px;}
.search-box input{flex:1;border:0;background:transparent;height:36px;font-size:14px;color:var(--text);outline:none;}
.search-box input::placeholder{color:var(--muted);}
.search-btn{height:34px;padding:0 16px;border:0;border-radius:var(--r-pill);background:var(--brand);color:#fff;font-size:13px;font-weight:600;cursor:pointer;transition:background .2s var(--ease);}
.search-btn:hover{background:var(--brand-dark);}
.hot-tags{display:flex;align-items:center;gap:8px;margin-left:auto;}
.hot-tags a{font-size:12px;color:var(--text);background:var(--bg-alt);border:1px solid transparent;border-radius:var(--r-pill);padding:5px 11px;transition:all .2s var(--ease);}
.hot-tags a:hover{background:var(--brand-light);color:var(--brand);border-color:rgba(24,87,196,.18);}
.head-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.btn-brand{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:var(--r-btn);background:var(--brand);border:1px solid var(--brand);color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:all .22s var(--ease);}
.btn-brand:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(24,87,196,.24);}
.btn-brand:active{transform:translateY(0);box-shadow:none;}
.btn-brand.sm{height:40px;padding:0 18px;font-size:14px;}
.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--r-btn);background:#fff;border:1px solid rgba(24,87,196,.22);color:var(--brand);font-size:15px;font-weight:600;cursor:pointer;transition:all .22s var(--ease);}
.btn-ghost:hover{background:var(--brand-light);border-color:var(--brand);color:var(--brand-dark);transform:translateY(-1px);}
.btn-white{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-btn);background:#fff;border:1px solid #fff;color:var(--brand);font-size:15px;font-weight:700;cursor:pointer;transition:all .22s var(--ease);}
.btn-white:hover{color:var(--brand-dark);transform:translateY(-1px);box-shadow:0 12px 26px rgba(16,27,51,.18);}
.icon-btn{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer;transition:all .2s var(--ease);}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-light);}
.hamburger{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer;font-size:16px;}
.hamburger:hover{border-color:var(--brand);color:var(--brand);}
.channel-row{border-top:1px solid var(--line);transition:height .24s var(--ease);}
.channel-scroll{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
.channel-scroll::-webkit-scrollbar{display:none;}
.channel-link{position:relative;display:inline-flex;align-items:center;height:48px;padding:0 14px;font-size:15px;color:var(--text);white-space:nowrap;transition:color .2s var(--ease);}
.site-header.scrolled .channel-link{height:44px;}
.channel-link:hover{color:var(--brand);}
.channel-link.active{color:var(--brand);font-weight:600;}
.channel-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;border-radius:3px 3px 0 0;background:var(--brand);}
.mobile-search{padding:12px 0 16px;border-top:1px solid var(--line);}
.mobile-search .search-box{max-width:none;}
.offcanvas{--bs-offcanvas-width:300px;}
.menu-head{padding:6px 0 18px;border-bottom:1px solid var(--line);margin-bottom:12px;}
.menu-list a{display:flex;align-items:center;justify-content:space-between;padding:14px 4px;font-size:16px;color:var(--ink);border-bottom:1px solid var(--line);}
.menu-list a.active{color:var(--brand);font-weight:600;}
.menu-list a i{font-size:12px;color:var(--muted);}

/* ---------- 面包屑 ---------- */
.crumb{padding:22px 0 0;font-size:13px;color:var(--muted);}
.crumb a{color:var(--brand);}
.crumb span.sep{margin:0 8px;color:#C3CCDC;}
.crumb .cur{color:var(--muted);}

/* ---------- Hero ---------- */
.hero{padding:22px 0 56px;}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:center;}
.hero h1{margin-bottom:16px;}
.hero .lead{font-size:16px;line-height:1.85;color:var(--text);max-width:600px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.hero-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.hero-pills span{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--text);background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-pill);padding:7px 14px;}
.hero-pills i{color:var(--brand);font-size:12px;}
.hero-media{position:relative;}
.hero-media .shot{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid rgba(16,27,51,.06);box-shadow:var(--sh-2);}
.hero-media .shot img{width:100%;height:340px;object-fit:cover;}
.hero-media .shot::after{content:"";position:absolute;inset:0;background:rgba(24,87,196,.14);}
.float-card{position:absolute;left:-18px;bottom:-22px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-3);padding:16px 20px;min-width:210px;}
.float-card strong{display:block;font-size:26px;line-height:1.2;color:var(--brand);font-weight:700;}
.float-card span{font-size:13px;color:var(--muted);}

/* ---------- 快筛标签 ---------- */
.quick-filter{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff;}
.quick-inner{display:flex;align-items:center;gap:12px;padding:14px 0;}
.quick-inner .qf-label{font-size:13px;color:var(--muted);flex:0 0 auto;}
.qf-scroll{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;}
.qf-scroll::-webkit-scrollbar{display:none;}
.qf-pill{flex:0 0 auto;display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text);background:var(--bg-alt);border:1px solid transparent;border-radius:var(--r-pill);padding:7px 15px;transition:all .2s var(--ease);}
.qf-pill:hover{background:var(--brand-light);color:var(--brand);}
.qf-pill.on{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;}

/* ---------- 主内容区 ---------- */
.layout{display:grid;grid-template-columns:240px 1fr;gap:32px;align-items:start;}
.filter-panel{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:20px;}
.filter-group + .filter-group{margin-top:22px;padding-top:20px;border-top:1px solid var(--line);}
.filter-title{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:12px;display:flex;align-items:center;gap:8px;}
.filter-title::before{content:"";width:3px;height:14px;border-radius:3px;background:var(--brand);}
.check-item{display:flex;align-items:center;gap:10px;padding:7px 0;font-size:14px;color:var(--text);cursor:pointer;transition:color .2s var(--ease);}
.check-item:hover{color:var(--brand);}
.check-item input{position:absolute;opacity:0;width:0;height:0;}
.check-box{position:relative;flex:0 0 16px;width:16px;height:16px;border:1px solid var(--line);border-radius:4px;background:#fff;transition:all .2s var(--ease);}
.check-item input:checked + .check-box{background:var(--brand);border-color:var(--brand);}
.check-item input:checked + .check-box::after{content:"";position:absolute;left:5px;top:1px;width:4px;height:8px;border:solid #fff;border-width:0 2px 2px 0;transform:rotate(45deg);}
.check-item input:focus-visible + .check-box{outline:2px solid var(--brand);outline-offset:2px;}
.filter-num{margin-left:auto;font-size:12px;color:var(--muted);}
.btn-filter-toggle{width:100%;height:46px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);border:1px solid rgba(24,87,196,.22);background:#fff;color:var(--brand);font-size:14px;font-weight:600;margin-bottom:14px;}

/* ---------- 瀑布卡片 ---------- */
.masonry{columns:3;column-gap:20px;}
.gcard{break-inside:avoid;margin:0 0 20px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);}
.gcard:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(24,87,196,.2);}
.gcard-media{position:relative;display:block;overflow:hidden;aspect-ratio:3/2;}
.gcard-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.gcard:hover .gcard-media img{transform:scale(1.04);}
.badge-cat{position:absolute;left:12px;top:12px;font-size:12px;font-weight:600;color:var(--brand);background:rgba(255,255,255,.94);border-radius:var(--r-pill);padding:4px 11px;}
.badge-hot{position:absolute;right:12px;top:12px;font-size:12px;font-weight:600;color:#fff;background:var(--accent);border-radius:var(--r-pill);padding:4px 11px;}
.gcard-body{padding:18px 18px 16px;}
.gcard-body h3{font-size:17px;line-height:1.45;}
.gcard-body h3 a{color:var(--ink);}
.gcard-body h3 a:hover{color:var(--brand);}
.gcard-body p{margin-top:10px;font-size:14px;line-height:1.75;color:var(--muted);}
.gcard-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;padding-top:14px;border-top:1px solid var(--line);}
.meta{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--muted);}
.meta i{font-size:13px;}
.tag-mini{font-size:12px;color:var(--brand);background:var(--brand-light);border-radius:var(--r-pill);padding:3px 10px;}
.tag-mini.orange{color:#C25A16;background:var(--accent-soft);}
.list-foot{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:36px;}
.page-pill{min-width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;padding:0 14px;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;color:var(--text);font-size:14px;transition:all .2s var(--ease);}
.page-pill:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-light);}
.page-pill.on{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;}

/* ---------- 阅读流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.flow-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px 22px;box-shadow:var(--sh-1);transition:transform .24s var(--ease),box-shadow .24s var(--ease);}
.flow-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.flow-num{font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.08em;}
.flow-item h3{font-size:17px;margin:12px 0 10px;}
.flow-item p{font-size:14px;line-height:1.8;color:var(--muted);}

/* ---------- 评测维度 ---------- */
.values{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;}
.value-item{padding:8px 32px;}
.value-item + .value-item{border-left:1px solid var(--line);}
.value-item i{font-size:22px;color:var(--brand);}
.value-item h3{font-size:17px;margin:14px 0 10px;}
.value-item p{font-size:14px;line-height:1.8;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:.72fr 1.28fr;gap:48px;align-items:start;}
.faq-intro p{margin-top:16px;font-size:15px;line-height:1.85;color:var(--muted);}
.faq .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent;}
.faq .accordion-button{background:transparent;box-shadow:none;padding:20px 52px 20px 46px;font-size:16px;font-weight:600;color:var(--ink);position:relative;line-height:1.5;}
.faq .accordion-button:not(.collapsed){color:var(--brand);background:transparent;}
.faq .accordion-button:focus{box-shadow:none;border:0;}
.faq .accordion-button::before{content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;border-radius:3px;background:transparent;transition:background .2s var(--ease);}
.faq .accordion-button:not(.collapsed)::before{background:var(--brand);}
.faq .accordion-button::after{content:"";position:absolute;right:22px;top:50%;width:14px;height:14px;margin:0;transform:translateY(-50%);background-image:none;background:linear-gradient(var(--brand),var(--brand)) center/14px 2px no-repeat,linear-gradient(var(--brand),var(--brand)) center/2px 14px no-repeat;transition:transform .24s var(--ease);}
.faq .accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(45deg);}
.faq-num{position:absolute;left:16px;font-size:13px;font-weight:700;color:var(--accent);}
.faq .accordion-body{padding:4px 52px 24px 46px;background:var(--bg-alt);font-size:15px;line-height:1.9;color:var(--text);}

/* ---------- CTA ---------- */
.cta-band{background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-lg);padding:40px;display:flex;align-items:center;justify-content:space-between;gap:32px;}
.cta-band h2{font-size:clamp(22px,2.4vw,28px);}
.cta-band p{margin-top:12px;font-size:15px;color:var(--muted);max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:88px;border-top:3px solid var(--brand);background:#fff;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px;padding:56px 0 40px;}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.9;color:var(--muted);max-width:300px;}
.qr-box{display:inline-flex;align-items:center;gap:10px;margin-top:18px;padding:10px 14px;border:1px solid var(--line);border-radius:var(--r-card);background:var(--bg-alt);font-size:13px;color:var(--muted);}
.qr-box i{font-size:22px;color:var(--ink);}
.foot-col h4{font-size:15px;font-weight:600;color:var(--ink);margin-bottom:16px;}
.foot-col ul li{margin-bottom:10px;}
.foot-col ul li a{font-size:14px;color:var(--text);line-height:2;}
.foot-col ul li a:hover{color:var(--brand);}
.contact-line{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text);margin-bottom:12px;}
.contact-line i{color:var(--brand);width:16px;text-align:center;}
.foot-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;border-top:1px solid var(--line);padding:18px 0;font-size:13px;color:var(--muted);flex-wrap:wrap;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .masonry{columns:3;}
}
@media (max-width:991px){
  .sec{padding:64px 0;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero-media .shot img{height:280px;}
  .float-card{position:static;left:auto;bottom:auto;margin-top:16px;box-shadow:var(--sh-1);}
  .layout{grid-template-columns:1fr;gap:24px;}
  .filter-panel{position:static;}
  .masonry{columns:2;}
  .flow{grid-template-columns:repeat(2,1fr);}
  .value-grid{grid-template-columns:1fr;}
  .value-item{padding:24px 0;}
  .value-item + .value-item{border-left:0;border-top:1px solid var(--line);}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;padding:44px 0 32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px;}
}
@media (min-width:992px){
  .filter-panel{position:sticky;top:132px;}
}
@media (max-width:767px){
  .sec{padding:48px 0;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .masonry{columns:1;}
  .flow{grid-template-columns:1fr;}
  .hero{padding:16px 0 40px;}
  .hero-actions .btn-brand,.hero-actions .btn-ghost{width:100%;}
  .cta-actions{width:100%;}
  .cta-actions .btn-brand,.cta-actions .btn-ghost{width:100%;}
  .faq .accordion-button{padding:18px 46px 18px 42px;font-size:15px;}
  .faq .accordion-body{padding:4px 20px 20px 42px;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bar{flex-direction:column;align-items:flex-start;}
  .site-footer{margin-top:56px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category4 */
:root{
  --brand:#1857C4;
  --brand-dark:#1348A6;
  --brand-soft:#E7EFFD;
  --brand-tint:#EEF4FF;
  --accent:#FF7A2F;
  --accent-soft:#FFF1E7;
  --ink:#101B33;
  --text:#3D4B66;
  --muted:#7A88A3;
  --line:#E6ECF5;
  --bg:#FFFFFF;
  --bg-alt:#F5F8FD;
  --ok:#0F9E77;
  --warn:#D97706;
  --err:#DC4B3E;
  --r-btn:10px;
  --r-card:14px;
  --r-lg:20px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(16,27,51,.04),0 2px 8px rgba(24,87,196,.06);
  --sh-2:0 10px 28px rgba(24,87,196,.12);
  --sh-3:0 16px 40px rgba(16,27,51,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
input{font:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 clamp(16px,4vw,32px);
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;}
  html{scroll-behavior:auto;}
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 6px 20px rgba(16,27,51,.06);
}
.nav-top{
  display:flex;
  align-items:center;
  gap:20px;
  height:64px;
  transition:height .22s var(--ease);
}
.site-header.is-scrolled .nav-top{height:56px;}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex:none;
  color:var(--ink);
  font-weight:700;
}
.logo-mark{
  position:relative;
  width:30px;
  height:30px;
  border-radius:9px;
  background:var(--brand);
  box-shadow:0 4px 12px rgba(24,87,196,.28);
  flex:none;
}
.logo-mark::before{
  content:"";
  position:absolute;
  left:9px;top:9px;right:9px;bottom:9px;
  border-radius:3px;
  background:#fff;
}
.logo-mark::after{
  content:"";
  position:absolute;
  right:4px;top:4px;
  width:9px;height:9px;
  border-radius:50%;
  background:var(--accent);
}
.logo-text{
  display:flex;
  flex-direction:column;
  line-height:1.08;
  font-size:18px;
  letter-spacing:.2px;
}
.logo-text small{
  font-size:9px;
  font-weight:600;
  letter-spacing:1.6px;
  color:var(--muted);
}
.nav-search{
  position:relative;
  flex:0 1 300px;
  min-width:180px;
}
.nav-search input{
  width:100%;
  height:40px;
  padding:0 42px 0 16px;
  border:1px solid var(--line);
  border-radius:999px;
  background:var(--bg-alt);
  font-size:14px;
  color:var(--ink);
  transition:border-color .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search input::placeholder{color:var(--muted);}
.nav-search input:focus{
  outline:none;
  border-color:var(--brand);
  background:#fff;
  box-shadow:0 0 0 3px rgba(24,87,196,.12);
}
.nav-search i{
  position:absolute;
  right:15px;
  top:50%;
  transform:translateY(-50%);
  font-size:14px;
  color:var(--muted);
  pointer-events:none;
}
.hot-tags{
  display:flex;
  align-items:center;
  gap:6px;
  flex-wrap:nowrap;
}
.hot-tags a{
  display:inline-block;
  padding:4px 11px;
  border-radius:999px;
  background:var(--bg-alt);
  color:var(--muted);
  font-size:12px;
  white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.hot-tags a:hover{background:var(--brand-soft);color:var(--brand);}
.nav-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:10px;
  flex:none;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-primary{
  background:var(--brand);
  color:#fff;
  box-shadow:0 6px 16px rgba(24,87,196,.22);
}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);box-shadow:0 3px 10px rgba(24,87,196,.2);}
.btn-ghost{
  background:#fff;
  color:var(--brand);
  border:1px solid rgba(24,87,196,.22);
}
.btn-ghost:hover{background:var(--brand-tint);border-color:var(--brand);color:var(--brand-dark);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-light{background:#fff;color:var(--brand);box-shadow:0 8px 22px rgba(16,27,51,.16);}
.btn-light:hover{background:var(--brand-tint);color:var(--brand-dark);transform:translateY(-1px);}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
}
.link-arrow i{transition:transform .22s var(--ease);font-size:12px;}
.link-arrow:hover i{transform:translateX(3px);}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  color:var(--ink);
  font-size:18px;
  border:1px solid var(--line);
  background:#fff;
}
.nav-channels{border-top:1px solid var(--line);}
.channel-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  height:48px;
  transition:height .22s var(--ease);
}
.site-header.is-scrolled .channel-inner{height:44px;}
.channel-list{
  display:flex;
  align-items:center;
  gap:4px;
  overflow-x:auto;
  scrollbar-width:none;
}
.channel-list::-webkit-scrollbar{display:none;}
.channel-list a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:48px;
  padding:0 14px;
  color:var(--text);
  font-size:15px;
  font-weight:500;
  white-space:nowrap;
  transition:color .2s var(--ease),height .22s var(--ease);
}
.site-header.is-scrolled .channel-list a{height:44px;}
.channel-list a::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:0;
  height:3px;
  border-radius:3px 3px 0 0;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s var(--ease);
}
.channel-list a:hover{color:var(--brand);}
.channel-list a:hover::after{transform:scaleX(1);}
.channel-list a.active{color:var(--brand);font-weight:700;}
.channel-list a.active::after{transform:scaleX(1);}
.channel-side{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  white-space:nowrap;
}
.channel-side i{color:var(--accent);}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;
  top:0;left:0;bottom:0;
  width:min(300px,84vw);
  background:#fff;
  z-index:1060;
  padding:22px 20px 32px;
  transform:translateX(-102%);
  transition:transform .28s var(--ease);
  box-shadow:var(--sh-3);
  overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0);}
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(16,27,51,.42);
  opacity:0;
  visibility:hidden;
  transition:opacity .26s var(--ease),visibility .26s var(--ease);
  z-index:1050;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--ink);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:48px;
  padding:0 14px;
  border-radius:10px;
  color:var(--text);
  font-size:15px;
  font-weight:500;
}
.drawer-nav a:hover,.drawer-nav a.active{background:var(--brand-tint);color:var(--brand);font-weight:700;}
.drawer-search{margin:18px 0 20px;}
.drawer-search input{
  width:100%;
  height:46px;
  border:1px solid var(--line);
  border-radius:10px;
  padding:0 14px;
  font-size:14px;
  background:var(--bg-alt);
}
.drawer-search input:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(24,87,196,.12);}

/* ============ 面包屑 ============ */
.crumbs{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--muted);
}
.crumbs a{color:var(--brand);}
.crumbs a:hover{text-decoration:underline;}
.crumbs .sep{color:#C3CEDF;}
.crumbs .current{color:var(--muted);}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  padding:44px 0 52px;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(92deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.92) 46%,rgba(238,244,255,.74) 100%);
}
.page-hero .wrap{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,.85fr);
  gap:48px;
  align-items:center;
}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 12px;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:12px;
  font-weight:600;
  margin-bottom:16px;
}
.page-hero h1{
  font-size:clamp(30px,4.4vw,46px);
  line-height:1.25;
  font-weight:700;
  color:var(--ink);
  letter-spacing:-.4px;
}
.hero-lead{
  margin-top:16px;
  max-width:640px;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
}
.hero-pills{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:24px;
}
.hero-pills span{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:7px 14px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--line);
  font-size:13px;
  color:var(--text);
  box-shadow:var(--sh-1);
}
.hero-pills i{color:var(--accent);font-size:12px;}
.hero-card{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid rgba(16,27,51,.06);
  box-shadow:var(--sh-3);
}
.hero-card img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  transition:transform .4s var(--ease);
}
.hero-card:hover img{transform:scale(1.04);}
.hero-float{
  position:absolute;
  left:18px;
  bottom:18px;
  right:18px;
  display:flex;
  align-items:center;
  gap:14px;
  padding:14px 18px;
  border-radius:14px;
  background:rgba(255,255,255,.96);
  border:1px solid var(--line);
  box-shadow:var(--sh-2);
}
.hero-float strong{
  font-size:26px;
  font-weight:700;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  line-height:1.1;
}
.hero-float span{
  display:block;
  font-size:12px;
  color:var(--muted);
}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section.alt{background:var(--bg-alt);}
.section.tight{padding:64px 0;}
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:30px;
}
.sec-head h2{
  font-size:clamp(24px,3vw,32px);
  line-height:1.3;
  font-weight:700;
  color:var(--ink);
  letter-spacing:-.3px;
}
.sec-head p{
  margin-top:10px;
  font-size:15px;
  color:var(--muted);
  max-width:660px;
}
.eyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:700;
  letter-spacing:1.2px;
  color:var(--accent);
  margin-bottom:10px;
}

/* 帮助方向条 */
.help-strip{
  background:var(--bg-alt);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.help-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
}
.help-cell{
  padding:30px 26px;
  border-left:1px solid var(--line);
  transition:background .22s var(--ease);
}
.help-cell:first-child{border-left:0;}
.help-cell:hover{background:#fff;}
.help-cell i{
  font-size:20px;
  color:var(--brand);
  margin-bottom:12px;
  display:block;
}
.help-cell h3{
  font-size:16px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:6px;
}
.help-cell p{font-size:13.5px;color:var(--muted);line-height:1.7;}

/* ============ 文档双栏 ============ */
.doc-layout{
  display:grid;
  grid-template-columns:240px minmax(0,1fr);
  gap:44px;
  align-items:start;
}
.doc-nav{
  position:sticky;
  top:132px;
  padding:22px;
  border-radius:var(--r-card);
  background:#fff;
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.doc-nav h3{
  font-size:14px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:14px;
  letter-spacing:.4px;
}
.doc-nav ul{display:flex;flex-direction:column;gap:2px;}
.doc-nav a{
  position:relative;
  display:block;
  padding:9px 12px 9px 16px;
  border-radius:8px;
  font-size:14px;
  color:var(--text);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.doc-nav a::before{
  content:"";
  position:absolute;
  left:0;top:11px;bottom:11px;
  width:3px;
  border-radius:3px;
  background:var(--brand);
  opacity:0;
  transition:opacity .2s var(--ease);
}
.doc-nav a:hover{background:var(--brand-tint);color:var(--brand);}
.doc-nav a:hover::before,.doc-nav a.active::before{opacity:1;}
.doc-nav a.active{background:var(--brand-tint);color:var(--brand);font-weight:600;}
.doc-nav .nav-note{
  margin-top:16px;
  padding-top:16px;
  border-top:1px solid var(--line);
  font-size:12.5px;
  color:var(--muted);
  line-height:1.7;
}

.doc-body-area{min-width:0;}
.doc-group{margin-bottom:40px;}
.doc-group:last-child{margin-bottom:0;}
.doc-group-title{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:20px;
  font-weight:700;
  color:var(--ink);
  padding-left:14px;
  border-left:4px solid var(--brand);
  margin-bottom:6px;
  scroll-margin-top:140px;
}
.doc-item{border-bottom:1px solid var(--line);}
.doc-item:first-of-type{border-top:1px solid var(--line);}
.doc-head{
  width:100%;
  display:flex;
  align-items:flex-start;
  gap:16px;
  padding:20px 8px;
  text-align:left;
  transition:background .2s var(--ease);
  border-radius:8px;
}
.doc-head:hover{background:var(--bg-alt);}
.doc-num{
  flex:none;
  font-size:13px;
  font-weight:700;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  padding-top:3px;
  min-width:22px;
}
.doc-main{flex:1 1 auto;min-width:0;}
.doc-title{
  display:block;
  font-size:16.5px;
  font-weight:600;
  color:var(--ink);
  line-height:1.55;
  transition:color .2s var(--ease);
}
.doc-head:hover .doc-title{color:var(--brand);}
.doc-sum{
  display:block;
  margin-top:5px;
  font-size:13.5px;
  color:var(--muted);
  line-height:1.7;
}
.doc-toggle{
  flex:none;
  width:30px;
  height:30px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  border:1px solid var(--line);
  color:var(--muted);
  font-size:12px;
  transition:transform .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),background .24s var(--ease);
}
.doc-item.open .doc-toggle{
  transform:rotate(45deg);
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
}
.doc-panel{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows .28s var(--ease);
}
.doc-item.open .doc-panel{grid-template-rows:1fr;}
.doc-panel-inner{overflow:hidden;}
.doc-panel-body{
  padding:4px 8px 22px 46px;
  font-size:15px;
  line-height:1.85;
  color:var(--text);
}
.doc-panel-body p+p{margin-top:12px;}
.doc-panel-body ul{margin-top:12px;display:flex;flex-direction:column;gap:7px;}
.doc-panel-body li{position:relative;padding-left:18px;font-size:14.5px;color:var(--text);}
.doc-panel-body li::before{
  content:"";
  position:absolute;
  left:0;top:10px;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--brand);
}
.doc-tip{
  margin-top:14px;
  padding:12px 16px;
  border-radius:10px;
  background:var(--brand-tint);
  border-left:3px solid var(--brand);
  font-size:14px;
  color:var(--text);
}

/* ============ 三步排查 ============ */
.step-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.step-card{
  padding:26px 24px;
  border-radius:var(--r-card);
  background:#fff;
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(24,87,196,.24);}
.step-no{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;height:38px;
  border-radius:12px;
  background:var(--accent-soft);
  color:var(--accent);
  font-size:15px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.step-card h3{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:8px;}
.step-card p{font-size:14px;color:var(--muted);line-height:1.75;}
.step-side{
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);
  gap:36px;
  align-items:center;
  margin-top:36px;
}
.step-side figure{
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid rgba(16,27,51,.06);
  box-shadow:var(--sh-1);
}
.step-side img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s var(--ease);}
.step-side figure:hover img{transform:scale(1.04);}
.step-side h3{font-size:20px;font-weight:700;color:var(--ink);margin-bottom:12px;}
.step-side p{font-size:15px;line-height:1.85;color:var(--text);}
.dot-list{margin-top:16px;display:flex;flex-direction:column;gap:9px;}
.dot-list li{position:relative;padding-left:20px;font-size:14.5px;}
.dot-list li::before{
  content:"";
  position:absolute;
  left:2px;top:9px;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--brand);
}

/* ============ FAQ ============ */
.faq-layout{
  display:grid;
  grid-template-columns:300px minmax(0,1fr);
  gap:48px;
  align-items:start;
}
.faq-intro{position:sticky;top:132px;}
.faq-intro h2{
  font-size:clamp(24px,3vw,32px);
  font-weight:700;
  color:var(--ink);
  line-height:1.3;
  margin-bottom:14px;
}
.faq-intro p{font-size:15px;color:var(--muted);line-height:1.85;}
.faq-intro .btn{margin-top:22px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  gap:14px;
  min-height:60px;
  padding:14px 10px;
  text-align:left;
  font-size:16.5px;
  font-weight:600;
  color:var(--ink);
  transition:background .2s var(--ease),color .2s var(--ease),box-shadow .24s var(--ease);
}
.faq-q:hover{color:var(--brand);background:var(--bg-alt);}
.faq-idx{
  flex:none;
  font-size:13px;
  font-weight:700;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  min-width:20px;
}
.faq-q .faq-txt{flex:1 1 auto;line-height:1.6;}
.faq-icon{
  flex:none;
  width:28px;height:28px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  border:1px solid var(--line);
  color:var(--muted);
  font-size:12px;
  transition:transform .24s var(--ease),color .24s var(--ease),background .24s var(--ease),border-color .24s var(--ease);
}
.faq-item.open .faq-q{
  color:var(--brand);
  background:var(--bg-alt);
  box-shadow:inset 3px 0 0 var(--brand);
  padding-left:16px;
}
.faq-item.open .faq-icon{
  transform:rotate(45deg);
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
}
.faq-a{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows .28s var(--ease);
  background:var(--bg-alt);
}
.faq-item.open .faq-a{grid-template-rows:1fr;}
.faq-a-inner{overflow:hidden;}
.faq-a-body{
  padding:2px 24px 22px 46px;
  font-size:15px;
  line-height:1.85;
  color:var(--text);
}

/* ============ CTA 条 ============ */
.cta-strip{
  background:var(--brand-tint);
  border:1px solid rgba(24,87,196,.14);
  border-radius:var(--r-lg);
  padding:40px;
  display:flex;
  align-items:center;
  gap:36px;
  flex-wrap:wrap;
}
.cta-strip .cta-copy{flex:1 1 420px;min-width:0;}
.cta-strip h2{
  font-size:clamp(22px,2.6vw,28px);
  font-weight:700;
  color:var(--ink);
  line-height:1.35;
  margin-bottom:10px;
}
.cta-strip p{font-size:15px;color:var(--text);line-height:1.8;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:0;
  border-top:3px solid var(--brand);
  background:#fff;
  padding:64px 0 0;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.foot-brand p{
  margin-top:16px;
  font-size:14px;
  color:var(--muted);
  line-height:1.85;
  max-width:320px;
}
.qr-box{
  margin-top:20px;
  width:112px;
  height:112px;
  border:1px dashed #C9D6EA;
  border-radius:12px;
  background:var(--bg-alt);
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:8px;
  color:var(--muted);
  font-size:12px;
}
.qr-box i{font-size:28px;color:#B4C4DC;}
.foot-col h4{
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:16px;
}
.foot-col ul{display:flex;flex-direction:column;gap:9px;}
.foot-col a{
  font-size:14px;
  color:var(--text);
  line-height:1.6;
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.foot-col a:hover{color:var(--brand);padding-left:3px;}
.contact-line{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14px;
  color:var(--text);
  line-height:1.7;
  margin-bottom:11px;
}
.contact-line i{color:var(--brand);font-size:13px;margin-top:5px;flex:none;}
.foot-bar{
  border-top:1px solid var(--line);
  padding:20px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--muted);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .help-cell{padding:26px 20px;}
}
@media (max-width:991px){
  .nav-search{display:none;}
  .hot-tags{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-actions .btn-primary{display:none;}
  .channel-side{display:none;}
  .page-hero{padding:34px 0 42px;}
  .page-hero .wrap{grid-template-columns:1fr;gap:28px;}
  .hero-card{order:2;}
  .hero-float{position:static;margin-top:-46px;margin-left:18px;margin-right:18px;right:auto;left:auto;box-shadow:var(--sh-2);}
  .section{padding:64px 0;}
  .help-grid{grid-template-columns:repeat(2,1fr);}
  .help-cell:nth-child(odd){border-left:0;}
  .help-cell:nth-child(n+3){border-top:1px solid var(--line);}
  .doc-layout{grid-template-columns:1fr;gap:28px;}
  .doc-nav{position:static;top:auto;}
  .doc-nav ul{flex-direction:row;flex-wrap:wrap;gap:6px;}
  .doc-nav a{padding:8px 14px;border-radius:999px;background:var(--bg-alt);font-size:13px;}
  .doc-nav a::before{display:none;}
  .doc-nav .nav-note{display:none;}
  .step-grid{grid-template-columns:1fr;gap:18px;}
  .step-side{grid-template-columns:1fr;gap:24px;}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .faq-intro{position:static;top:auto;}
  .foot-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
  .cta-strip{padding:32px;}
}
@media (max-width:575px){
  .nav-top{height:58px;gap:12px;}
  .logo-text{font-size:16px;}
  .logo-text small{display:none;}
  .channel-list a{padding:0 11px;font-size:14px;}
  .page-hero h1{font-size:26px;}
  .hero-lead{font-size:15px;}
  .hero-pills span{font-size:12px;padding:6px 12px;}
  .section{padding:48px 0;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .help-grid{grid-template-columns:1fr;}
  .help-cell{border-left:0 !important;border-top:1px solid var(--line);}
  .help-cell:first-child{border-top:0;}
  .doc-head{padding:16px 4px;gap:12px;}
  .doc-title{font-size:15.5px;}
  .doc-panel-body{padding:2px 4px 20px 30px;font-size:14.5px;}
  .faq-q{font-size:15.5px;gap:10px;padding:12px 6px;}
  .faq-a-body{padding:2px 12px 18px 34px;font-size:14.5px;}
  .cta-strip{padding:26px 20px;gap:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .foot-grid{grid-template-columns:1fr;gap:26px;}
  .foot-bar{flex-direction:column;align-items:flex-start;gap:6px;}
  .btn{height:44px;padding:0 20px;}
}