/* roulang page: index */
:root{
  --c-primary:#4A3AC7;
  --c-primary-600:#3A2CA8;
  --c-primary-050:#EEECFB;
  --c-amber:#FF7A59;
  --c-amber-ink:#2A1608;
  --c-amber-soft:#8A3A22;
  --c-teal:#0FA697;
  --c-teal-ink:#0B7A6F;
  --c-night:#171233;
  --c-night-2:#2A2160;
  --c-bg:#F7F6FC;
  --c-surface:#FFFFFF;
  --c-line:#E6E3F2;
  --c-ink:#1B1436;
  --c-muted:#6B6685;
  --r-card:16px;
  --r-img:14px;
  --r-input:12px;
  --shadow-1:0 1px 2px rgba(27,20,54,.06);
  --shadow-2:0 10px 30px -12px rgba(27,20,54,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:180ms;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:132px}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.9;
  color:var(--c-ink);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:0;color:var(--c-ink);font-family:var(--font)}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:var(--c-primary);text-decoration:none;transition:color var(--dur) var(--ease),background-color var(--dur) var(--ease)}
a:hover{color:var(--c-primary-600)}
button,input{font-family:inherit}
:focus-visible{outline:3px solid rgba(74,58,199,.25);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section.alt{background:#FFFFFF}
.section.tint{background:var(--c-primary-050)}
.sec-head{max-width:780px;margin:0 auto 48px;text-align:center}
.sec-head.is-left{margin-left:0;text-align:left}
.sec-head h2{font-size:30px}
.sec-head .sec-desc{margin-top:14px;font-size:15px;color:var(--c-muted)}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--c-primary);background:var(--c-primary-050);border-radius:999px;padding:4px 14px;margin-bottom:14px}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:80;background:#FFFFFF;border-bottom:1px solid var(--c-line);box-shadow:0 1px 0 rgba(27,20,54,.02)}
.topbar-inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:8px;flex:0 0 auto;color:var(--c-ink)}
.brand:hover{color:var(--c-primary)}
.brand-mark{font-size:21px;font-weight:700;letter-spacing:0}
.brand-sub{font-size:12px;font-weight:600;color:var(--c-primary);background:var(--c-primary-050);border-radius:999px;padding:3px 9px;line-height:1.4}
.topbar-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.site-search{display:flex;align-items:center;width:280px;height:42px;border:1px solid var(--c-line);border-radius:999px;background:#FAF9FE;overflow:hidden;transition:width var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}
.site-search:focus-within{width:360px;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(74,58,199,.14);background:#FFFFFF}
.site-search input{flex:1 1 auto;min-width:0;height:100%;border:0;background:transparent;padding:0 4px 0 18px;font-size:14px;color:var(--c-ink);outline:none}
.site-search input::placeholder{color:#9E99B5}
.site-search button{flex:0 0 auto;width:46px;height:100%;border:0;background:transparent;color:var(--c-primary);cursor:pointer;font-size:15px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 24px;font-size:15px;font-weight:600;border-radius:999px;border:1px solid transparent;cursor:pointer;text-decoration:none;white-space:nowrap;transition:background-color var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-600);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.38);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.6)}
.btn-outline{background:transparent;border-color:rgba(74,58,199,.45);color:var(--c-primary)}
.btn-outline:hover{background:var(--c-primary-050);color:var(--c-primary-600);border-color:var(--c-primary)}
.btn-white{background:#FFFFFF;color:var(--c-primary)}
.btn-white:hover{background:#EFEDF9;color:var(--c-primary-600);transform:translateY(-1px)}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px}
.nav-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid var(--c-line);border-radius:12px;background:#fff;color:var(--c-ink);font-size:17px;cursor:pointer}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}

.channelbar{background:#FFFFFF}
.channel-scroll{display:flex;align-items:center;gap:8px;height:48px;overflow-x:auto;overflow-y:hidden;scroll-snap-type:x proximity;-ms-overflow-style:none;scrollbar-width:none}
.channel-scroll::-webkit-scrollbar{display:none}
.pill{flex:0 0 auto;scroll-snap-align:start;padding:8px 18px;border-radius:999px;font-size:14.5px;font-weight:600;color:var(--c-muted);background:transparent;white-space:nowrap;transition:background-color var(--dur) var(--ease),color var(--dur) var(--ease)}
.pill:hover{background:#EFEDF9;color:var(--c-primary)}
.pill.is-active{background:var(--c-primary);color:#FFFFFF}
.pill.is-active:hover{background:var(--c-primary-600);color:#FFFFFF}

/* 移动抽屉 */
.mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);background:#FFFFFF;z-index:140;transform:translateX(102%);transition:transform 240ms var(--ease);padding:20px;overflow-y:auto;box-shadow:var(--shadow-2)}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-title{font-size:16px;font-weight:700}
.drawer-close{width:44px;height:44px;border:1px solid var(--c-line);border-radius:12px;background:#fff;font-size:16px;color:var(--c-ink);cursor:pointer}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:20px}
.drawer-nav a{display:flex;align-items:center;min-height:46px;padding:0 14px;border-radius:12px;color:var(--c-ink);font-size:15px;font-weight:600}
.drawer-nav a:hover{background:#EFEDF9;color:var(--c-primary)}
.drawer-nav a.is-active{background:var(--c-primary-050);color:var(--c-primary)}
.btn-block{width:100%}
.drawer-mask{position:fixed;inset:0;background:rgba(23,18,51,.45);z-index:130;opacity:0;visibility:hidden;transition:opacity var(--dur) var(--ease),visibility var(--dur) var(--ease)}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* Hero */
.hero{position:relative;background:linear-gradient(160deg,#171233 0%,#2A2160 100%);color:#fff;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.28) 1px,transparent 1px);background-size:34px 34px;opacity:.4;pointer-events:none}
.hero::after{content:"";position:absolute;right:-160px;top:-140px;width:520px;height:520px;border-radius:50%;border:1px solid rgba(255,255,255,.09);pointer-events:none}
.hero-inner{position:relative;z-index:2;padding:76px 0 88px}
.hero h1{font-size:48px;line-height:1.2;color:#fff;margin:18px 0 0;max-width:640px}
.hero-tag{display:inline-flex;align-items:center;gap:8px;padding:5px 14px;border-radius:999px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#D9D4FF;font-size:13px;font-weight:600}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.8);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.hero-tags li{font-size:13.5px;color:#CFC9F5;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:999px;padding:5px 14px}
.hero-media{position:relative;border-radius:20px;overflow:hidden;border:1px solid rgba(255,255,255,.14);aspect-ratio:4/3;background:#231B4E}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:rgba(23,18,51,.28)}
.hero-media-cap{position:absolute;left:20px;right:20px;bottom:18px;z-index:3;color:#fff;font-size:14px;line-height:1.7;background:rgba(23,18,51,.72);border:1px solid rgba(255,255,255,.16);border-radius:12px;padding:12px 16px}

/* 通用卡片 */
.card{display:flex;flex-direction:column;height:100%;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);overflow:hidden;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(74,58,199,.35)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-050)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 220ms var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.card-title{font-size:17.5px;font-weight:600;line-height:1.55;color:var(--c-ink)}
.card:hover .card-title{color:var(--c-primary)}
.card-sum{font-size:14.5px;line-height:1.8;color:var(--c-muted);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:12px;padding-top:6px;font-size:13px;color:var(--c-muted)}
.card-foot .go{color:var(--c-primary);font-weight:600}
.badge{display:inline-flex;align-items:center;border-radius:999px;padding:2px 12px;font-size:13px;line-height:1.7;font-weight:600}
.badge-teal{background:rgba(15,166,151,.12);color:#0B7A6F}
.badge-amber{background:rgba(255,122,89,.16);color:#8A3A22}
.badge-indigo{background:var(--c-primary-050);color:var(--c-primary-600)}

/* 频道速览 */
.channel-card .card-media{aspect-ratio:16/10}
.channel-card .card-title{font-size:17px}

/* 图文交错 */
.story-row{align-items:center}
.story-row + .story-row{margin-top:64px}
.story-media{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--c-line);aspect-ratio:3/2;background:var(--c-primary-050)}
.story-media img{width:100%;height:100%;object-fit:cover}
.story-text h2{font-size:30px}
.story-text p{margin-top:16px;color:#443D63;font-size:16px}
.text-link{display:inline-flex;align-items:center;gap:8px;margin-top:18px;font-weight:600;font-size:15px;border-bottom:1px solid transparent}
.text-link:hover{border-bottom-color:currentColor}

/* 精选内容 非对称 */
.feature-grid > .cell{margin-bottom:24px}
.feature-lg .card-media{aspect-ratio:16/7}
.feature-lg .card-title{font-size:22px}
.feature-lg .card-sum{-webkit-line-clamp:3;font-size:15px}
.feature-lg .card-body{padding:26px}
.vert-card .card-media{aspect-ratio:4/3}

/* 最新信息 */
.news-list{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);padding:10px;min-height:320px}
.news-row{display:flex;gap:18px;padding:14px;border-radius:12px;transition:background-color var(--dur) var(--ease),transform var(--dur) var(--ease)}
.news-row:hover{background:#FAF9FE;transform:translateX(2px)}
.news-thumb{flex:0 0 172px;width:172px;aspect-ratio:3/2;border-radius:12px;overflow:hidden;background:var(--c-primary-050)}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-body{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;gap:6px}
.news-title{font-size:17px;font-weight:600;line-height:1.6;color:var(--c-ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-row:hover .news-title{color:var(--c-primary)}
.news-sum{font-size:14.5px;line-height:1.75;color:var(--c-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;display:flex;align-items:center;gap:12px;font-size:13px;color:var(--c-muted);padding-top:4px}
.news-row + .news-row{border-top:1px solid var(--c-line)}
.empty-state{border:1px dashed var(--c-line);border-radius:var(--r-card);padding:56px 24px;text-align:center;color:var(--c-muted);background:#FFFFFF}
.empty-state i{font-size:26px;color:var(--c-primary);display:block;margin-bottom:12px}
.empty-state p{font-size:15px;margin:0}
.side-panel{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);padding:24px}
.side-panel + .side-panel{margin-top:20px}
.side-panel h3{font-size:17px;margin-bottom:14px}
.side-links li + li{border-top:1px solid var(--c-line)}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:44px;font-size:14.5px;color:var(--c-ink)}
.side-links a:hover{color:var(--c-primary)}
.side-links i{font-size:12px;color:var(--c-muted)}
.side-note{font-size:14px;color:var(--c-muted);line-height:1.8}

/* 数据 */
.stats-row > .cell{margin-bottom:24px;text-align:center}
.stat-num{font-size:44px;font-weight:700;line-height:1.1;color:var(--c-primary);font-variant-numeric:tabular-nums}
.stat-num span{font-size:16px;font-weight:600;margin-left:4px;color:var(--c-primary-600)}
.stat-label{margin-top:8px;font-size:13.5px;color:var(--c-muted)}
.logo-strip{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:32px}
.logo-strip span{font-size:13.5px;color:var(--c-muted);border:1px solid var(--c-line);background:#fff;border-radius:999px;padding:8px 18px}

/* FAQ */
.faq-wrap{max-width:840px;margin:0 auto}
.faq-item{background:#FFFFFF;border:1px solid var(--c-line);border-left:3px solid transparent;border-radius:12px;margin-bottom:12px;overflow:hidden;transition:background-color var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;min-height:60px;font-size:16.5px;font-weight:600;color:var(--c-ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";flex:0 0 auto;color:var(--c-primary);font-size:20px;font-weight:600;line-height:1;transition:transform var(--dur) var(--ease)}
.faq-item[open]{background:var(--c-primary-050);border-left-color:var(--c-primary);border-color:rgba(74,58,199,.28)}
.faq-item[open] summary{color:var(--c-primary-600)}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:0 22px 20px;font-size:15px;line-height:1.85;color:#3A3358}

/* CTA */
.cta-band{position:relative;background:linear-gradient(150deg,#171233 0%,#2A2160 100%);color:#fff;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.24) 1px,transparent 1px);background-size:30px 30px;opacity:.35;pointer-events:none}
.cta-band .container{position:relative;z-index:2}
.cta-band h2{font-size:30px;color:#fff}
.cta-sub{margin-top:14px;color:rgba(255,255,255,.78);font-size:16px;max-width:520px}
.cta-form{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;max-width:560px}
.field-input{height:52px;border-radius:var(--r-input);border:1px solid rgba(255,255,255,.26);background:rgba(255,255,255,.08);color:#fff;padding:0 18px;font-size:15px;outline:none;transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}
.field-input::placeholder{color:rgba(255,255,255,.55)}
.field-input:focus{border-color:#FFFFFF;box-shadow:0 0 0 3px rgba(255,255,255,.2)}
.cta-form .field-input{flex:1 1 260px;min-width:0}
.form-hint{margin-top:14px;font-size:13px;color:rgba(255,255,255,.6)}
.cta-media{border-radius:var(--r-img);overflow:hidden;border:1px solid rgba(255,255,255,.16);aspect-ratio:3/2;opacity:.9}
.cta-media img{width:100%;height:100%;object-fit:cover}

/* 页脚 */
.site-footer{background:var(--c-night);color:rgba(255,255,255,.72);padding:72px 0 0;position:relative;overflow:hidden}
.site-footer::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.2) 1px,transparent 1px);background-size:36px 36px;opacity:.28;pointer-events:none}
.site-footer .container{position:relative;z-index:2}
.footer-grid > .cell{margin-bottom:36px}
.foot-brand{font-size:19px;font-weight:700;color:#fff;margin-bottom:12px}
.foot-desc{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.68);max-width:280px}
.foot-kw{margin-top:14px;font-size:13px;color:#A9A2D6}
.foot-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.foot-links li{margin-bottom:4px}
.foot-links a,.foot-links span{display:inline-block;font-size:14px;line-height:1.9;color:rgba(255,255,255,.7)}
.foot-links a:hover{color:#FFFFFF;text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px}
.foot-form{display:flex;flex-direction:column;gap:10px}
.foot-form .field-input{height:46px;border-radius:var(--r-input);font-size:14px}
.foot-bottom{margin-top:16px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0 28px;display:flex;flex-wrap:wrap;gap:12px 28px;font-size:13px;color:rgba(255,255,255,.65)}

@media screen and (max-width:1023px){
  .section{padding:72px 0}
  .hero h1{font-size:36px}
  .hero-inner{padding:56px 0 64px}
  .hero-media{margin-top:32px}
  .sec-head h2,.story-text h2,.cta-band h2{font-size:26px}
  .news-thumb{flex-basis:150px;width:150px}
}
@media screen and (max-width:639px){
  .container{padding:0 20px}
  .section{padding:48px 0}
  .topbar-inner{height:56px;gap:12px}
  .brand-mark{font-size:18px}
  .brand-sub{font-size:11px;padding:2px 8px}
  .site-search{display:none}
  .nav-toggle{display:inline-flex}
  .topbar-actions .btn{display:none}
  .hero h1{font-size:28px;margin-top:14px}
  .hero-sub{font-size:15.5px}
  .hero-inner{padding:40px 0 48px}
  .hero-media{aspect-ratio:16/9}
  .hero-media-cap{position:static;margin:0;border-radius:0;border:0;background:transparent;padding:14px 2px 0}
  .sec-head h2,.story-text h2,.cta-band h2{font-size:22px}
  .sec-head{margin-bottom:32px}
  .stat-num{font-size:34px}
  .news-row{flex-direction:column;gap:12px}
  .news-thumb{flex:0 0 auto;width:100%;aspect-ratio:16/9}
  .story-row + .story-row{margin-top:40px}
  .card-body{padding:18px}
  .faq-item summary{padding:16px 18px;font-size:15.5px}
  .faq-body{padding:0 18px 18px}
  .cta-form .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --c-primary:#4A3AC7;
  --c-primary-600:#3A2CA8;
  --c-primary-050:#EEECFB;
  --c-orange:#FF7A59;
  --c-orange-ink:#8A3A22;
  --c-teal:#0FA697;
  --c-teal-ink:#0B7A6F;
  --c-night:#171233;
  --c-night-2:#2A2160;
  --c-bg:#F7F6FC;
  --c-surface:#FFFFFF;
  --c-line:#E6E3F2;
  --c-text:#1B1436;
  --c-muted:#6B6685;
  --r-card:16px;
  --r-img:14px;
  --r-input:12px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(27,20,54,.06);
  --shadow-2:0 10px 30px -12px rgba(27,20,54,.22);
  --tr:180ms cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:132px;}
body{
  margin:0;background:var(--c-bg);color:var(--c-text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;line-height:1.9;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--tr),border-color var(--tr),background var(--tr);}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid rgba(74,58,199,.25);outline-offset:2px;border-radius:6px;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:0;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;}
.container{max-width:var(--container);margin:0 auto;padding:0 32px;width:100%;}
.button,.btn{border-radius:var(--r-pill);}
.button{background-color:var(--c-primary);}
.button:hover{background-color:var(--c-primary-600);}
.callout{background:var(--c-primary-050);border:0;border-radius:var(--r-card);color:var(--c-text);}
input,textarea,select{font-family:inherit;}

/* ============ 顶部品牌行 ============ */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);backdrop-filter:none;border-bottom:1px solid var(--c-line);}
.topbar{border-bottom:1px solid var(--c-line);}
.topbar-inner{display:flex;align-items:center;gap:20px;height:68px;}
.brand{display:flex;align-items:baseline;gap:8px;flex:0 0 auto;}
.brand-main{font-size:20px;font-weight:700;color:var(--c-text);}
.brand-sub{font-size:12px;font-weight:600;color:var(--c-primary);background:var(--c-primary-050);border-radius:var(--r-pill);padding:3px 10px;line-height:1.4;}
.brand:hover .brand-main{color:var(--c-primary);}
.search-box{flex:1 1 auto;display:flex;justify-content:center;}
.search-inner{display:flex;align-items:center;gap:8px;background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--r-pill);padding:0 6px 0 16px;height:42px;width:280px;transition:width var(--tr),border-color var(--tr),box-shadow var(--tr);}
.search-inner:focus-within{width:360px;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(74,58,199,.12);}
.search-inner i{color:var(--c-muted);font-size:14px;}
.search-inner input{border:0;background:transparent;outline:none;flex:1;height:100%;font-size:14.5px;color:var(--c-text);}
.search-inner input::placeholder{color:var(--c-muted);}
.search-inner button{border:0;background:var(--c-primary);color:#fff;border-radius:var(--r-pill);height:32px;padding:0 16px;font-size:13.5px;font-weight:600;cursor:pointer;transition:background var(--tr),transform var(--tr);}
.search-inner button:hover{background:var(--c-primary-600);}
.topbar-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;cursor:pointer;font-weight:600;font-size:15px;line-height:1;padding:14px 26px;border-radius:var(--r-pill);transition:background var(--tr),color var(--tr),border-color var(--tr),transform var(--tr),box-shadow var(--tr);}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-600);transform:translateY(-1px);color:#fff;}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:transparent;color:var(--c-primary);border-color:rgba(74,58,199,.4);}
.btn-outline:hover{border-color:var(--c-primary);background:var(--c-primary-050);color:var(--c-primary-600);}
.btn-ghost{background:#fff;color:var(--c-text);border-color:var(--c-line);border-radius:var(--r-input);box-shadow:var(--shadow-1);}
.btn-ghost:hover{border-color:rgba(74,58,199,.35);color:var(--c-primary);}
.btn-sm{padding:11px 20px;font-size:14px;}
.btn-light{background:#fff;color:var(--c-night);}
.btn-light:hover{background:#EDEBFA;color:var(--c-primary-600);}
.menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--c-line);background:#fff;border-radius:var(--r-input);color:var(--c-text);font-size:17px;cursor:pointer;align-items:center;justify-content:center;}

/* ============ 频道 Tabs ============ */
.channelbar{background:#fff;}
.channel-scroll{display:flex;align-items:center;gap:8px;height:48px;overflow-x:auto;scroll-snap-type:x proximity;-ms-overflow-style:none;scrollbar-width:none;}
.channel-scroll::-webkit-scrollbar{display:none;}
.pill{flex:0 0 auto;scroll-snap-align:start;padding:8px 18px;border-radius:var(--r-pill);font-size:14.5px;font-weight:600;color:var(--c-muted);white-space:nowrap;transition:background var(--tr),color var(--tr);}
.pill:hover{background:#EFEDF9;color:var(--c-primary-600);}
.pill.is-active{background:var(--c-primary);color:#fff;}
.pill.is-active:hover{background:var(--c-primary-600);color:#fff;}

/* ============ 移动抽屉 ============ */
.drawer{position:fixed;inset:0 0 0 auto;width:82%;max-width:340px;background:#fff;z-index:90;transform:translateX(100%);transition:transform 220ms cubic-bezier(.2,.7,.3,1);padding:24px 22px;overflow-y:auto;box-shadow:var(--shadow-2);}
body.menu-open .drawer{transform:translateX(0);}
.drawer-mask{position:fixed;inset:0;background:rgba(23,18,51,.45);opacity:0;visibility:hidden;transition:opacity var(--tr);z-index:80;}
body.menu-open .drawer-mask{opacity:1;visibility:visible;}
.drawer-title{font-size:15px;font-weight:700;color:var(--c-muted);margin-bottom:12px;}
.drawer-link{display:flex;align-items:center;min-height:48px;font-size:16px;font-weight:600;color:var(--c-text);border-bottom:1px solid var(--c-line);}
.drawer-link:hover{color:var(--c-primary);}
.drawer-link.is-active{color:var(--c-primary);}
.drawer-actions{margin-top:22px;display:grid;gap:12px;}
.drawer-actions .btn{width:100%;}

/* ============ 分类首屏 ============ */
.hero-cat{background:linear-gradient(180deg,#FFFFFF 0%,var(--c-bg) 100%);border-bottom:1px solid var(--c-line);padding:56px 0 52px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--c-primary-600);background:var(--c-primary-050);border-radius:var(--r-pill);padding:6px 14px;margin-bottom:18px;}
.hero-title{font-size:40px;line-height:1.22;margin-bottom:16px;}
.hero-sub{font-size:16.5px;line-height:1.9;color:var(--c-muted);max-width:620px;margin-bottom:22px;}
.pill-row{display:flex;flex-wrap:wrap;gap:10px;}
.tag-pill{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;padding:7px 14px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--c-line);color:var(--c-muted);}
.tag-pill i{color:var(--c-teal);font-size:12px;}
.hero-figure{margin:0;border-radius:20px;overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--shadow-2);position:relative;}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-figure::after{content:"";position:absolute;inset:0;background:rgba(23,18,51,.12);}

/* ============ 板块通用 ============ */
.section{padding:96px 0;}
.section-tight{padding-top:0;}
.section-tint{background:var(--c-primary-050);}
.section-white{background:#fff;}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head.is-center{margin:0 auto 44px;text-align:center;}
.section-head h2{font-size:30px;margin-bottom:14px;}
.section-head p{font-size:15.5px;color:var(--c-muted);}

/* ============ 卡片 ============ */
.card{display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);overflow:hidden;height:100%;transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(74,58,199,.35);}
.card-media{overflow:hidden;}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform var(--tr);}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-title{font-size:17px;font-weight:600;line-height:1.5;}
.card-title a{color:var(--c-text);}
.card:hover .card-title a{color:var(--c-primary);}
.card-text{font-size:15px;line-height:1.8;color:var(--c-muted);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;padding-top:12px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-muted);}
.badge{display:inline-flex;align-items:center;font-size:12.5px;font-weight:600;padding:4px 11px;border-radius:var(--r-pill);}
.badge-teal{background:rgba(15,166,151,.12);color:var(--c-teal-ink);}
.badge-orange{background:rgba(255,122,89,.16);color:var(--c-orange-ink);}
.badge-indigo{background:var(--c-primary-050);color:var(--c-primary-600);}
.card-arrow{color:var(--c-primary);font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.card:hover .card-arrow i{transform:translateX(3px);}
.card-arrow i{transition:transform var(--tr);}

/* 横向大卡 */
.card-wide{flex-direction:row;}
.card-wide .card-media{flex:0 0 46%;}
.card-wide .card-media img{height:100%;aspect-ratio:auto;min-height:280px;}
.card-wide .card-body{padding:30px 32px;gap:14px;}
.card-wide .card-title{font-size:22px;}
.card-wide .card-text{-webkit-line-clamp:3;font-size:15.5px;}

/* ============ 数据指标 ============ */
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--shadow-1);}
.stat-num{font-size:44px;font-weight:700;line-height:1.1;color:var(--c-primary);font-variant-numeric:tabular-nums;}
.stat-num span{font-size:20px;margin-left:2px;}
.stat-label{font-size:13.5px;color:var(--c-muted);margin-top:8px;}

/* ============ 场景区 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.scene-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px 28px;box-shadow:var(--shadow-1);display:flex;gap:18px;transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);}
.scene-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(74,58,199,.35);}
.scene-icon{flex:0 0 46px;width:46px;height:46px;border-radius:12px;background:var(--c-primary-050);color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:18px;}
.scene-item h3{font-size:18px;margin-bottom:8px;}
.scene-item p{font-size:15px;line-height:1.85;color:var(--c-muted);}

/* ============ 流程时间线 ============ */
.timeline{position:relative;max-width:860px;margin:0 auto;}
.timeline::before{content:"";position:absolute;left:19px;top:8px;bottom:8px;width:1px;background:var(--c-line);}
.step{position:relative;padding-left:64px;padding-bottom:34px;}
.step:last-child{padding-bottom:0;}
.step-num{position:absolute;left:0;top:2px;width:40px;height:40px;border-radius:50%;background:var(--c-primary);color:#fff;font-size:15px;font-weight:700;display:flex;align-items:center;justify-content:center;box-shadow:0 0 0 6px var(--c-bg);font-variant-numeric:tabular-nums;}
.step-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px 26px;box-shadow:var(--shadow-1);}
.step-card h3{font-size:18px;margin-bottom:8px;}
.step-card p{font-size:15px;color:var(--c-muted);line-height:1.85;}
.step-meta{display:inline-flex;align-items:center;gap:6px;margin-top:12px;font-size:13px;color:var(--c-teal-ink);background:rgba(15,166,151,.12);border-radius:var(--r-pill);padding:4px 12px;font-weight:600;}

/* ============ FAQ ============ */
.faq-wrap{max-width:920px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);margin-bottom:14px;overflow:hidden;transition:border-color var(--tr),box-shadow var(--tr);}
.faq-item[open]{border-color:rgba(74,58,199,.4);box-shadow:var(--shadow-1);background:var(--c-primary-050);}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 24px;font-size:16.5px;font-weight:600;color:var(--c-text);min-height:60px;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary i{color:var(--c-primary);font-size:14px;transition:transform var(--tr);flex:0 0 auto;}
.faq-item[open] summary i{transform:rotate(180deg);}
.faq-body{padding:0 24px 22px 27px;border-left:3px solid var(--c-primary);margin-left:24px;font-size:15px;line-height:1.85;color:var(--c-muted);}

/* ============ CTA 条 ============ */
.cta-band{background:linear-gradient(135deg,var(--c-night) 0%,var(--c-night-2) 100%);color:#fff;padding:64px 0;position:relative;overflow:hidden;}
.cta-band::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.055) 1px,transparent 1px);background-size:22px 22px;pointer-events:none;}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-size:26px;color:#fff;margin-bottom:10px;}
.cta-inner p{font-size:15px;color:rgba(255,255,255,.78);max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.5);}
.btn-outline-light:hover{border-color:var(--c-orange);color:var(--c-orange);}

/* ============ 面包屑 ============ */
.breadcrumb{font-size:13px;color:var(--c-muted);padding:20px 0 0;}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb span.sep{padding:0 8px;color:#C6C2D9;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-night);color:rgba(255,255,255,.75);padding:72px 0 0;position:relative;overflow:hidden;}
.site-footer::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);background-size:24px 24px;pointer-events:none;}
.footer-grid{position:relative;row-gap:34px;padding-bottom:48px;}
.foot-brand{font-size:19px;font-weight:700;color:#fff;margin-bottom:12px;}
.foot-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);margin-bottom:12px;}
.foot-kw{font-size:13px;color:var(--c-teal);letter-spacing:0;}
.foot-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.foot-links li{font-size:14px;line-height:1.9;margin-bottom:8px;}
.foot-links a{color:rgba(255,255,255,.68);}
.foot-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.foot-links span{color:rgba(255,255,255,.68);}
.foot-form{display:grid;gap:10px;}
.field-input{height:52px;border-radius:var(--r-input);border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.06);color:#fff;padding:0 16px;font-size:14.5px;outline:none;transition:border-color var(--tr),box-shadow var(--tr);}
.field-input::placeholder{color:rgba(255,255,255,.5);}
.field-input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(74,58,199,.3);}
.foot-bottom{position:relative;border-top:1px solid rgba(255,255,255,.14);padding:20px 0;display:flex;flex-wrap:wrap;gap:12px 26px;font-size:13px;color:rgba(255,255,255,.65);}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .hero-cat{padding:44px 0 40px;}
  .hero-title{font-size:32px;}
  .stats-row{grid-template-columns:repeat(2,1fr);}
  .card-wide{flex-direction:column;}
  .card-wide .card-media{flex:0 0 auto;}
  .card-wide .card-media img{min-height:0;aspect-ratio:16/9;}
  .card-wide .card-body{padding:24px;}
  .search-inner{width:220px;}
  .search-inner:focus-within{width:280px;}
}
@media (max-width:639px){
  html{scroll-padding-top:116px;}
  .container{padding:0 20px;}
  .section{padding:48px 0;}
  .topbar-inner{height:56px;gap:12px;}
  .brand-main{font-size:18px;}
  .brand-sub{font-size:11px;padding:2px 8px;}
  .search-box{display:none;}
  .topbar-actions .btn{display:none;}
  .menu-toggle{display:flex;margin-left:auto;}
  .channel-scroll{height:44px;}
  .hero-cat{padding:32px 0 36px;}
  .hero-title{font-size:28px;}
  .hero-figure{margin-top:24px;}
  .hero-figure img{aspect-ratio:16/10;}
  .section-head h2{font-size:22px;}
  .stats-row{grid-template-columns:1fr;gap:16px;}
  .scene-grid{grid-template-columns:1fr;gap:16px;}
  .scene-item{flex-direction:column;gap:12px;padding:22px;}
  .stat-num{font-size:38px;}
  .timeline::before{left:15px;}
  .step{padding-left:52px;}
  .step-num{width:32px;height:32px;font-size:14px;}
  .step-card{padding:18px 20px;}
  .card-body{padding:18px;}
  .card-title{font-size:16.5px;}
  .faq-item summary{padding:16px 18px;font-size:15.5px;}
  .faq-body{margin-left:18px;padding:0 18px 20px 21px;}
  .cta-band{padding:48px 0;}
  .cta-inner h2{font-size:21px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .foot-bottom{padding:18px 0;}
}

/* roulang page: article */
:root{
  --c-primary:#4A3AC7;
  --c-primary-600:#3A2CA8;
  --c-primary-050:#EEECFB;
  --c-accent:#FF7A59;
  --c-accent-600:#F26844;
  --c-accent-ink:#8A3A22;
  --c-teal:#0FA697;
  --c-teal-ink:#0B7A6F;
  --c-night:#171233;
  --c-night-2:#2A2160;
  --c-bg:#F7F6FC;
  --c-surface:#FFFFFF;
  --c-line:#E6E3F2;
  --c-text:#1B1436;
  --c-muted:#6B6685;
  --r-card:16px;
  --r-img:12px;
  --r-input:12px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(27,20,54,.06);
  --shadow-2:0 10px 30px -12px rgba(27,20,54,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:180ms;
  --font:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*{box-sizing:border-box;}
html{scroll-padding-top:132px;scroll-behavior:smooth;}
body{margin:0;background:var(--c-bg);color:var(--c-text);font-family:var(--font);font-size:16.5px;line-height:1.9;-webkit-font-smoothing:antialiased;}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--dur) var(--ease);}
a:hover{color:var(--c-primary-600);}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-text);letter-spacing:0;}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0;}
:focus-visible{outline:3px solid rgba(74,58,199,.25);outline-offset:2px;}
.container{max-width:1200px;margin:0 auto;padding:0 32px;}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--c-surface);border-bottom:1px solid var(--c-line);box-shadow:var(--shadow-1);}
.topbar-inner{display:flex;align-items:center;gap:20px;height:68px;}
.brand{display:flex;align-items:center;gap:8px;white-space:nowrap;text-decoration:none;}
.brand-main{font-size:20px;font-weight:700;color:var(--c-text);}
.brand-sub{font-size:12px;font-weight:600;color:#fff;background:var(--c-primary);padding:3px 9px;border-radius:var(--r-pill);line-height:1.6;}
.search-box{display:flex;align-items:center;margin-left:auto;width:280px;height:42px;background:#F3F1FB;border:1px solid var(--c-line);border-radius:var(--r-pill);padding:0 6px 0 16px;transition:width var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);}
.search-box:focus-within{width:360px;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(74,58,199,.12);}
.search-box input{flex:1;border:0;background:transparent;outline:none;font-size:15px;color:var(--c-text);min-width:0;}
.search-box input::placeholder{color:var(--c-muted);}
.search-box button{width:32px;height:32px;border:0;border-radius:var(--r-pill);background:var(--c-primary);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background var(--dur) var(--ease);}
.search-box button:hover{background:var(--c-primary-600);}
.top-cta{flex:none;}
.menu-toggle{display:none;width:44px;height:44px;flex-direction:column;justify-content:center;align-items:center;gap:4px;border:1px solid var(--c-line);border-radius:12px;background:#fff;cursor:pointer;}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--c-text);border-radius:2px;}

.channelbar{border-top:1px solid var(--c-line);background:var(--c-surface);}
.channel-scroll{display:flex;align-items:center;gap:8px;height:48px;overflow-x:auto;scroll-snap-type:x proximity;-ms-overflow-style:none;scrollbar-width:none;}
.channel-scroll::-webkit-scrollbar{display:none;}
.pill{flex:none;scroll-snap-align:start;padding:8px 18px;border-radius:var(--r-pill);font-size:14.5px;font-weight:500;color:var(--c-muted);white-space:nowrap;transition:background var(--dur) var(--ease),color var(--dur) var(--ease);}
.pill:hover{background:#EFEDF9;color:var(--c-primary);}
.pill.is-active{background:var(--c-primary);color:#fff;}

.drawer{display:none;}
.drawer.is-open{display:block;position:fixed;top:56px;left:0;right:0;z-index:55;background:var(--c-surface);border-bottom:1px solid var(--c-line);box-shadow:var(--shadow-2);padding:16px 20px 24px;max-height:calc(100vh - 56px);overflow-y:auto;}
.drawer-search{display:flex;align-items:center;gap:8px;height:48px;background:#F3F1FB;border:1px solid var(--c-line);border-radius:var(--r-input);padding:0 8px 0 14px;margin-bottom:14px;}
.drawer-search input{flex:1;border:0;background:transparent;outline:none;min-width:0;font-size:15px;}
.drawer-search button{width:34px;height:34px;border:0;border-radius:10px;background:var(--c-primary);color:#fff;cursor:pointer;}
.drawer-link{display:flex;align-items:center;min-height:44px;padding:0 4px;font-size:16px;color:var(--c-text);border-bottom:1px solid var(--c-line);}
.drawer-link:hover{color:var(--c-primary);}
.drawer-cta{margin-top:18px;width:100%;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border:1px solid transparent;border-radius:var(--r-pill);font-size:15px;font-weight:600;line-height:1.4;cursor:pointer;transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-600);color:#fff;transform:translateY(-1px);}
.btn-accent{background:var(--c-accent);color:#2A1608;}
.btn-accent:hover{background:var(--c-accent-600);color:#2A1608;transform:translateY(-1px);}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-text);}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);}
.btn-outline{background:transparent;border-color:rgba(255,255,255,.4);color:#fff;}
.btn-outline:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.08);}
.btn-sm{padding:9px 18px;font-size:14px;}

/* ---------- 文章头部 ---------- */
.article-hero{position:relative;background:var(--c-bg);padding:52px 0 40px;border-bottom:1px solid var(--c-line);overflow:hidden;}
.article-hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(74,58,199,.18) 1px,transparent 1px);background-size:22px 22px;opacity:.32;pointer-events:none;}
.article-hero .container{position:relative;z-index:1;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);margin-bottom:18px;}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:#C6C1DC;}
.crumb-here{color:var(--c-text);font-weight:500;}
.article-hero h1{font-size:40px;line-height:1.2;font-weight:700;max-width:900px;}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:18px;font-size:13px;color:var(--c-muted);font-variant-numeric:tabular-nums;}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#C6C1DC;display:inline-block;}
.meta-chip{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);background:rgba(15,166,151,.12);color:var(--c-teal-ink);font-size:13px;font-weight:500;}

/* ---------- 板块 ---------- */
.section{padding:96px 0;}
.section-head{max-width:720px;margin-bottom:36px;}
.section-head h2{font-size:30px;line-height:1.3;}
.section-head p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--c-muted);}
.section-article{padding-top:56px;padding-bottom:56px;}

/* ---------- 正文 ---------- */
.article-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);padding:40px 44px;}
.article-body{font-size:16.5px;line-height:1.9;color:var(--c-text);}
.article-body p{margin:0 0 1.15em;}
.article-body h2{font-size:32px;line-height:1.3;margin:40px 0 16px;}
.article-body h3{font-size:22px;line-height:1.4;margin:32px 0 12px;font-weight:600;}
.article-body h2:first-child,.article-body h3:first-child{margin-top:0;}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.15em;}
.article-body li{margin:.35em 0;}
.article-body ul li::marker{color:var(--c-primary);}
.article-body ol li::marker{color:var(--c-primary);font-variant-numeric:tabular-nums;}
.article-body blockquote{margin:24px 0;padding:16px 20px;border-left:4px solid var(--c-primary);background:var(--c-primary-050);border-radius:0 12px 12px 0;color:#332A5E;}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);margin:24px auto;max-width:100%;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:8px;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.article-body th,.article-body td{border-bottom:1px solid var(--c-line);padding:10px 12px;text-align:left;}
.article-body th{font-weight:600;background:var(--c-primary-050);}
.article-body code{background:var(--c-primary-050);padding:2px 6px;border-radius:6px;font-size:14px;}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:32px 0;}

.empty-state{border:1px dashed var(--c-line);border-radius:var(--r-card);padding:56px 24px;text-align:center;}
.empty-icon{width:56px;height:56px;margin:0 auto 16px;border-radius:50%;background:var(--c-primary-050);color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:22px;}
.empty-title{font-size:19px;font-weight:600;margin-bottom:8px;}
.empty-text{font-size:15px;color:var(--c-muted);margin-bottom:22px;}

.article-foot{margin-top:24px;padding:22px 24px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{display:inline-flex;align-items:center;padding:5px 13px;border-radius:var(--r-pill);font-size:13px;font-weight:500;background:rgba(15,166,151,.12);color:var(--c-teal-ink);}
.tag.is-primary{background:var(--c-primary-050);color:var(--c-primary-600);}
.tag.is-accent{background:rgba(255,122,89,.16);color:var(--c-accent-ink);}
.share-row{display:flex;align-items:center;gap:10px;}
.share-label{font-size:13px;color:var(--c-muted);}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border:1px solid var(--c-line);border-radius:var(--r-pill);background:#fff;color:var(--c-text);font-size:13px;cursor:pointer;transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);}
.share-btn:hover{border-color:var(--c-primary);color:var(--c-primary);}

/* ---------- 侧栏 ---------- */
.side{display:flex;flex-direction:column;gap:20px;}
.side-sticky{position:sticky;top:140px;}
.side-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);padding:24px;}
.side-title{font-size:15px;font-weight:600;margin-bottom:14px;}
.info-row{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px dashed var(--c-line);font-size:14px;}
.info-row:last-child{border-bottom:0;}
.info-row span:first-child{color:var(--c-muted);}
.info-row span:last-child{font-weight:500;font-variant-numeric:tabular-nums;text-align:right;}
.side-links li{border-bottom:1px solid var(--c-line);}
.side-links li:last-child{border-bottom:0;}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:12px 0;font-size:15px;color:var(--c-text);}
.side-links a i{font-size:12px;color:#C6C1DC;transition:transform var(--dur) var(--ease),color var(--dur) var(--ease);}
.side-links a:hover{color:var(--c-primary);}
.side-links a:hover i{color:var(--c-primary);transform:translateX(3px);}
.side-cta{background:var(--c-primary-050);border-color:#DCD7F6;}
.side-cta p{font-size:14.5px;line-height:1.8;color:#423A70;margin-bottom:16px;}

/* ---------- 卡片 ---------- */
.card{display:flex;flex-direction:column;height:100%;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);overflow:hidden;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(74,58,199,.35);}
.card-media{aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-050);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--dur) var(--ease);}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1;}
.card-badge{align-self:flex-start;margin-bottom:12px;}
.card-title{font-size:17px;line-height:1.55;font-weight:600;margin-bottom:8px;}
.card-title a{color:var(--c-text);}
.card:hover .card-title a{color:var(--c-primary);}
.card-text{font-size:15px;line-height:1.8;color:var(--c-muted);margin-bottom:18px;}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-muted);font-variant-numeric:tabular-nums;}
.card-foot i{color:#C6C1DC;transition:transform var(--dur) var(--ease),color var(--dur) var(--ease);}
.card:hover .card-foot i{color:var(--c-primary);transform:translateX(3px);}

/* ---------- CTA 暗底 ---------- */
.cta-band{position:relative;overflow:hidden;background:linear-gradient(160deg,var(--c-night) 0%,var(--c-night-2) 100%);color:#fff;padding:72px 0;}
.cta-band::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.35) 1px,transparent 1px);background-size:26px 26px;opacity:.18;pointer-events:none;}
.cta-inner{position:relative;z-index:1;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;}
.cta-title{font-size:28px;line-height:1.3;color:#fff;}
.cta-text{margin-top:10px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.72);max-width:520px;}
.cta-form{display:flex;gap:10px;align-items:center;flex-wrap:wrap;}
.field-input{height:52px;min-width:260px;padding:0 18px;border:1px solid var(--c-line);border-radius:var(--r-input);background:#fff;color:var(--c-text);outline:none;transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);}
.field-input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(74,58,199,.2);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-night);color:rgba(255,255,255,.72);padding:72px 0 0;}
.footer-grid{padding-bottom:48px;}
.foot-brand{font-size:19px;font-weight:700;color:#fff;margin-bottom:14px;}
.foot-desc{font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.72);margin-bottom:14px;}
.foot-kw{font-size:13px;color:var(--c-teal);}
.foot-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.foot-links li{margin-bottom:8px;}
.foot-links a,.foot-links span{font-size:14px;line-height:1.9;color:rgba(255,255,255,.72);}
.foot-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px;}
.foot-form{display:flex;flex-direction:column;gap:10px;}
.foot-form .field-input{height:48px;min-width:0;width:100%;background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.22);color:#fff;}
.foot-form .field-input::placeholder{color:rgba(255,255,255,.55);}
.foot-bottom{display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;border-top:1px solid rgba(255,255,255,.12);padding:22px 0 28px;font-size:13px;color:rgba(255,255,255,.65);}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .article-hero{padding:40px 0 32px;}
  .article-hero h1{font-size:32px;}
  .article-card{padding:30px 26px;}
  .article-body h2{font-size:26px;}
  .article-body h3{font-size:20px;}
  .side-sticky{position:static;}
  .cta-title{font-size:24px;}
}
@media (max-width:639px){
  html{scroll-padding-top:112px;}
  .container{padding:0 20px;}
  .section{padding:48px 0;}
  .topbar-inner{height:56px;gap:12px;}
  .brand-main{font-size:18px;}
  .brand-sub{font-size:11px;padding:2px 7px;}
  .search-box,.top-cta{display:none;}
  .menu-toggle{display:flex;margin-left:auto;}
  .channel-scroll{height:44px;gap:6px;}
  .pill{padding:7px 14px;font-size:14px;}
  .article-hero{padding:32px 0 26px;}
  .article-hero h1{font-size:28px;}
  .breadcrumb{font-size:12.5px;margin-bottom:14px;}
  .article-card{padding:22px 18px;border-radius:14px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:22px;margin:32px 0 14px;}
  .article-body h3{font-size:18px;}
  .article-foot{padding:18px;}
  .share-row{width:100%;}
  .cta-band{padding:48px 0;}
  .cta-title{font-size:22px;}
  .cta-form{width:100%;}
  .field-input{min-width:0;width:100%;}
  .cta-form .btn{width:100%;}
  .site-footer{padding-top:52px;}
  .foot-bottom{flex-direction:column;gap:8px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#4A3AC7;
  --c-primary-600:#3A2CA8;
  --c-primary-050:#EEECFB;
  --c-orange:#FF7A59;
  --c-orange-ink:#8A3A22;
  --c-teal:#0FA697;
  --c-teal-ink:#0B7A6F;
  --c-night:#171233;
  --c-night-2:#2A2160;
  --c-bg:#F7F6FC;
  --c-surface:#FFFFFF;
  --c-line:#E6E3F2;
  --c-ink:#1B1436;
  --c-muted:#6B6685;
  --r-card:16px;
  --r-img:16px;
  --r-input:12px;
  --shadow-1:0 1px 2px rgba(27,20,54,.06);
  --shadow-2:0 10px 30px -12px rgba(27,20,54,.22);
  --ease:180ms cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:132px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;object-fit:cover}
figure{margin:0}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease)}
a:hover{color:var(--c-primary-600)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:3px solid rgba(74,58,199,.25);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
ul{margin:0 0 1.15em;padding-left:1.15em}
table{border-collapse:collapse}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}

/* 覆盖 Foundation 默认外观 */
.button,.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:none;cursor:pointer;border-radius:999px;
  padding:12px 24px;font-size:15px;font-weight:600;line-height:1.2;
  text-decoration:none;transition:all var(--ease);
}
.button:focus,.btn:focus{outline:3px solid rgba(74,58,199,.25);outline-offset:2px}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-600);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-ghost{background:transparent;color:var(--c-primary);border:1px solid rgba(74,58,199,.35)}
.btn-ghost:hover{background:var(--c-primary-050);color:var(--c-primary-600)}
.btn-outline{background:transparent;color:#fff;border:1px solid var(--c-orange)}
.btn-outline:hover{background:rgba(255,122,89,.16);color:#fff}
.btn-sm{padding:9px 16px;font-size:14px}
.callout{background:var(--c-primary-050);border-left:3px solid var(--c-primary);color:var(--c-ink);border-radius:12px}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.98);border-bottom:1px solid var(--c-line)}
.topbar{height:68px;display:flex;align-items:center;border-bottom:1px solid var(--c-line);position:relative}
.topbar-inner{display:flex;align-items:center;gap:24px;width:100%}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:linear-gradient(160deg,var(--c-primary),var(--c-night-2));
  color:#fff;font-weight:700;font-size:17px;display:flex;align-items:center;justify-content:center;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;color:var(--c-ink);font-weight:700}
.brand-text em{font-style:normal;font-size:11px;color:var(--c-muted)}
a.brand:hover .brand-text strong{color:var(--c-primary-600)}

.nav-search{display:flex;align-items:center;gap:8px;margin-left:auto;max-width:320px;width:100%;transition:max-width var(--ease)}
.nav-search input{
  width:100%;height:42px;border:1px solid var(--c-line);background:var(--c-bg);
  border-radius:999px;padding:0 18px;color:var(--c-ink);transition:all var(--ease);
}
.nav-search input::placeholder{color:#9A95B2}
.nav-search input:focus{outline:none;border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(74,58,199,.14)}
.nav-search:focus-within{max-width:360px}
.nav-search button{
  height:42px;border:none;border-radius:999px;background:var(--c-primary-050);color:var(--c-primary-600);
  padding:0 18px;font-size:14px;font-weight:600;cursor:pointer;transition:all var(--ease);white-space:nowrap;
}
.nav-search button:hover{background:var(--c-primary);color:#fff}
.topbar-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.search-toggle,.nav-toggle{
  display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink);cursor:pointer;font-size:17px;
}
.search-toggle:hover,.nav-toggle:hover{background:var(--c-primary-050);border-color:rgba(74,58,199,.35);color:var(--c-primary-600)}

.channelbar{border-bottom:1px solid var(--c-line);background:#fff}
.channel-scroll{
  display:flex;gap:10px;align-items:center;height:48px;overflow-x:auto;scroll-snap-type:x proximity;
  scrollbar-width:none;-ms-overflow-style:none;
}
.channel-scroll::-webkit-scrollbar{display:none}
.pill{
  flex:0 0 auto;scroll-snap-align:start;padding:8px 18px;border-radius:999px;font-size:14.5px;font-weight:600;
  color:var(--c-muted);background:transparent;white-space:nowrap;transition:all var(--ease);
}
.pill:hover{background:#EFEDF9;color:var(--c-primary-600)}
.pill.is-active,.pill.is-active:hover{background:var(--c-primary);color:#fff}

/* 移动抽屉 */
.drawer{position:fixed;inset:0;z-index:80;background:rgba(23,18,51,.45);display:none}
.drawer.is-open{display:block}
.drawer-panel{
  position:absolute;right:0;top:0;bottom:0;width:min(320px,86vw);background:#fff;
  padding:24px 20px;overflow-y:auto;box-shadow:var(--shadow-2);
}
.drawer-title{font-size:15px;font-weight:600;color:var(--c-muted);margin:0 0 12px}
.drawer-list{list-style:none;margin:0 0 24px;padding:0}
.drawer-list li{margin-bottom:8px}
.drawer-list a{display:flex;align-items:center;min-height:44px;padding:0 14px;border-radius:12px;color:var(--c-ink);font-weight:600}
.drawer-list a:hover,.drawer-list a.is-active{background:var(--c-primary-050);color:var(--c-primary-600)}
.drawer-close{position:absolute;right:16px;top:16px;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);background:#fff;cursor:pointer}

/* ============ 首屏 ============ */
.page-hero{
  background:linear-gradient(180deg,#FFFFFF 0%,var(--c-bg) 100%);
  padding:56px 0 64px;border-bottom:1px solid var(--c-line);
}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;color:var(--c-teal-ink);
  background:rgba(15,166,151,.12);border-radius:999px;padding:5px 14px;margin-bottom:16px;
}
.page-hero h1{font-size:40px;line-height:1.25;font-weight:700;margin-bottom:16px}
.hero-lead{font-size:17px;color:var(--c-muted);line-height:1.85;max-width:46em}
.pill-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;
  padding:6px 14px;border-radius:999px;background:#fff;border:1px solid var(--c-line);color:var(--c-muted);
}
.tag--primary{background:var(--c-primary-050);border-color:transparent;color:var(--c-primary-600)}
.tag--orange{background:rgba(255,122,89,.16);color:var(--c-orange-ink);border-color:transparent}
.hero-figure{
  border-radius:var(--r-img);overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--shadow-1);background:var(--c-primary-050);
}
.hero-figure img{width:100%;aspect-ratio:4/3;}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section-head{margin-bottom:40px;max-width:760px}
.section-head h2{font-size:30px;line-height:1.3}
.section-head p{color:var(--c-muted);font-size:16px;margin-top:12px}
.badge{
  display:inline-block;font-size:12.5px;font-weight:600;padding:4px 12px;border-radius:999px;
  background:var(--c-primary-050);color:var(--c-primary-600);
}
.badge-teal{background:rgba(15,166,151,.12);color:var(--c-teal-ink)}
.badge-orange{background:rgba(255,122,89,.16);color:var(--c-orange-ink)}

/* ============ 双栏正文 ============ */
.cat-layout{align-items:flex-start}
.side-sticky{position:sticky;top:140px}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--shadow-1);margin-bottom:20px;
}
.side-card h3{font-size:15px;font-weight:600;margin-bottom:14px;color:var(--c-ink)}
.toc-list{list-style:none;margin:0;padding:0;counter-reset:toc}
.toc-list li{counter-increment:toc;margin-bottom:2px}
.toc-list a{
  display:flex;gap:10px;align-items:flex-start;padding:8px 10px;border-radius:10px;
  font-size:14.5px;color:var(--c-muted);line-height:1.6;transition:all var(--ease);
}
.toc-list a::before{
  content:counter(toc,decimal-leading-zero);font-size:12px;font-weight:700;color:var(--c-primary);
  font-variant-numeric:tabular-nums;padding-top:3px;
}
.toc-list a:hover{background:var(--c-primary-050);color:var(--c-primary-600)}
.side-links{list-style:none;margin:0;padding:0}
.side-links li{margin-bottom:8px}
.side-links a{display:flex;justify-content:space-between;align-items:center;min-height:40px;font-size:14.5px;font-weight:600;color:var(--c-ink)}
.side-links a:hover{color:var(--c-primary-600)}

.prose{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:44px 44px 36px;box-shadow:var(--shadow-1)}
.prose section{margin-bottom:52px}
.prose section:last-child{margin-bottom:0}
.prose h2{font-size:30px;line-height:1.3;margin-bottom:16px;scroll-margin-top:140px}
.prose h3{font-size:21px;line-height:1.4;font-weight:600;margin:28px 0 12px}
.prose p{color:#2A2350}
.prose ul li,.prose ol li{margin-bottom:8px}
.prose ul{list-style:none;padding-left:0}
.prose ul li{position:relative;padding-left:22px}
.prose ul li::before{
  content:"";position:absolute;left:4px;top:13px;width:7px;height:7px;border-radius:50%;background:var(--c-primary);
}
.quote{
  border-left:4px solid var(--c-primary);background:var(--c-primary-050);
  border-radius:0 12px 12px 0;padding:16px 20px;color:var(--c-primary-600);font-size:15.5px;margin:24px 0;
}
.step-list{list-style:none;margin:0 0 24px;padding:0;counter-reset:step}
.step-list li{
  counter-increment:step;position:relative;padding:0 0 20px 46px;border-left:1px solid var(--c-line);margin-left:15px;
}
.step-list li:last-child{border-left-color:transparent;padding-bottom:0}
.step-list li::before{
  content:counter(step);position:absolute;left:-15px;top:0;width:30px;height:30px;border-radius:50%;
  background:var(--c-primary);color:#fff;font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.step-list strong{display:block;font-size:16.5px;margin-bottom:4px}
.step-list span{color:var(--c-muted);font-size:15.5px}

.inline-card{
  display:grid;grid-template-columns:200px 1fr;gap:20px;align-items:center;
  background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--r-card);padding:18px;margin:28px 0;
}
.inline-card img{width:100%;aspect-ratio:16/9;border-radius:12px;background:var(--c-primary-050)}
.inline-card h3{font-size:18px;margin:10px 0 6px}
.inline-card p{font-size:15px;color:var(--c-muted);margin-bottom:10px}
.text-link{font-size:14.5px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.text-link:hover{gap:10px}

/* FAQ */
.faq details{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:14px;margin-bottom:12px;
  transition:all var(--ease);overflow:hidden;
}
.faq details[open]{background:var(--c-primary-050);border-color:rgba(74,58,199,.35)}
.faq summary{
  cursor:pointer;list-style:none;min-height:60px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 20px;font-size:16.5px;font-weight:600;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"＋";color:var(--c-primary);font-size:18px;font-weight:700;transition:transform var(--ease)}
.faq details[open] summary::after{content:"－"}
.faq .faq-body{
  padding:0 20px 20px;font-size:15px;line-height:1.85;color:#3A3360;border-left:3px solid var(--c-primary);
  margin-left:20px;
}

/* CTA 条 */
.cta-band{background:var(--c-primary-050);padding:64px 0}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px}
.cta-inner h2{font-size:26px;line-height:1.35}
.cta-inner p{color:var(--c-muted);margin-top:8px;font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-night);color:rgba(255,255,255,.78);padding:72px 0 0;font-size:14px}
.footer-grid{padding-bottom:44px}
.foot-brand{font-size:19px;font-weight:700;color:#fff;margin-bottom:12px}
.foot-desc{color:rgba(255,255,255,.7);font-size:14px;line-height:1.8;margin-bottom:12px}
.foot-kw{color:var(--c-teal);font-size:13px;margin:0}
.foot-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.foot-links{list-style:none;margin:0;padding:0}
.foot-links li{margin-bottom:8px;line-height:1.9}
.foot-links a,.foot-links span{color:rgba(255,255,255,.72);font-size:14px}
.foot-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px}
.foot-form{display:flex;flex-direction:column;gap:12px;max-width:280px}
.field-input{
  width:100%;height:52px;border-radius:var(--r-input);border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.06);color:#fff;padding:0 16px;transition:all var(--ease);
}
.field-input::placeholder{color:rgba(255,255,255,.5)}
.field-input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(74,58,199,.28)}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;flex-wrap:wrap;gap:10px 28px;
  font-size:13px;color:rgba(255,255,255,.65);font-variant-numeric:tabular-nums;
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .page-hero{padding:44px 0 52px}
  .page-hero h1{font-size:32px}
  .prose{padding:32px 28px 26px}
  .prose h2{font-size:24px}
  .side-sticky{position:static}
  .cat-layout .side-col{order:2;margin-top:32px}
  .cat-layout .main-col{order:1}
  .nav-search{max-width:240px}
}
@media (max-width:639px){
  body{font-size:16px}
  .container{padding:0 20px}
  .topbar{height:56px}
  .site-header{position:sticky}
  html{scroll-padding-top:120px}
  .nav-search{display:none}
  .topbar.is-search-open .nav-search{
    display:flex;position:absolute;left:20px;right:20px;top:calc(100% + 8px);z-index:70;max-width:none;
    background:#fff;padding:12px;border-radius:16px;box-shadow:var(--shadow-2);border:1px solid var(--c-line);
  }
  .search-toggle,.nav-toggle{display:inline-flex}
  .topbar-actions .btn-primary{display:none}
  .page-hero h1{font-size:28px}
  .hero-lead{font-size:16px}
  .section-head h2{font-size:22px}
  .prose{padding:24px 20px 20px;border-radius:14px}
  .prose h2{font-size:22px}
  .inline-card{grid-template-columns:1fr;gap:14px}
  .cta-inner h2{font-size:22px}
  .cta-actions .btn{width:100%}
  .hero-figure img{aspect-ratio:16/10}
  .foot-form{max-width:none}
}
@media (min-width:640px) and (max-width:1023px){
  .channel-scroll{flex-wrap:nowrap}
}

/* roulang page: category3 */
:root{
  --c-primary:#4A3AC7;
  --c-primary-600:#3A2CA8;
  --c-primary-050:#EEECFB;
  --c-orange:#FF7A59;
  --c-orange-text:#8A3A22;
  --c-teal:#0FA697;
  --c-teal-text:#0B7A6F;
  --c-night:#171233;
  --c-night-2:#2A2160;
  --c-bg:#F7F6FC;
  --c-surface:#FFFFFF;
  --c-line:#E6E3F2;
  --c-text:#1B1436;
  --c-muted:#6B6685;
  --r-card:16px;
  --r-img:14px;
  --r-input:12px;
  --shadow-1:0 1px 2px rgba(27,20,54,.06);
  --shadow-2:0 10px 30px -12px rgba(27,20,54,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-padding-top:132px;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.9;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color 180ms var(--ease);}
a:hover{color:var(--c-primary-600);}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid rgba(74,58,199,.25);outline-offset:2px;border-radius:6px;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;}
.container{max-width:1200px;margin:0 auto;padding:0 32px;width:100%;}
@media (max-width:1023px){.container{padding:0 24px;}}
@media (max-width:639px){.container{padding:0 20px;}}

/* ---------- 顶栏 / 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--c-surface);border-bottom:1px solid var(--c-line);box-shadow:0 1px 2px rgba(27,20,54,.05);}
.topbar{position:relative;height:68px;display:flex;align-items:center;gap:22px;}
@media (max-width:639px){.topbar{height:56px;gap:12px;}}
.logo{display:flex;align-items:center;gap:10px;color:var(--c-text);flex:0 0 auto;}
.logo:hover{color:var(--c-text);}
.logo-mark{width:36px;height:36px;border-radius:11px;background:
  radial-gradient(circle at 22% 26%,rgba(255,255,255,.85) 1.2px,transparent 1.6px),
  radial-gradient(circle at 68% 34%,rgba(255,255,255,.6) 1px,transparent 1.4px),
  radial-gradient(circle at 42% 74%,rgba(255,255,255,.55) 1.1px,transparent 1.5px),
  linear-gradient(140deg,var(--c-primary) 0%,var(--c-night-2) 100%);
  box-shadow:0 6px 14px -8px rgba(74,58,199,.85);
}
.logo-text{display:flex;flex-direction:column;line-height:1.1;letter-spacing:0;}
.logo-text strong{font-size:18px;font-weight:700;}
.logo-text span{font-size:11.5px;color:var(--c-muted);font-weight:500;}
.search-box{margin-left:auto;display:flex;align-items:center;gap:0;width:280px;height:42px;border:1px solid var(--c-line);border-radius:999px;background:#fff;padding:0 4px 0 16px;transition:width 220ms var(--ease),border-color 180ms var(--ease),box-shadow 180ms var(--ease);}
.search-box:focus-within{width:360px;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(74,58,199,.14);}
.search-input{flex:1 1 auto;border:0;background:transparent;font-size:14.5px;font-family:inherit;color:var(--c-text);outline:none;min-width:0;}
.search-input::placeholder{color:#9C97B3;}
.search-btn{border:0;background:var(--c-primary-050);color:var(--c-primary);font-family:inherit;font-size:13.5px;font-weight:600;padding:0 16px;height:34px;border-radius:999px;cursor:pointer;transition:background 180ms var(--ease);}
.search-btn:hover{background:#E2DFF8;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:inherit;font-size:15px;font-weight:600;line-height:1;padding:14px 26px;border-radius:999px;border:1px solid transparent;cursor:pointer;transition:transform 180ms var(--ease),background 180ms var(--ease),box-shadow 180ms var(--ease),border-color 180ms var(--ease),color 180ms var(--ease);text-decoration:none;}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px -12px rgba(74,58,199,.9);}
.btn-primary:hover{background:var(--c-primary-600);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:rgba(74,58,199,.35);border-radius:12px;padding:13px 22px;}
.btn-ghost:hover{background:var(--c-primary-050);border-color:var(--c-primary);color:var(--c-primary-600);}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);border-radius:12px;}
.btn-outline:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.08);}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:10px;}
.topbar-cta{padding:12px 22px;font-size:14.5px;flex:0 0 auto;}
.nav-toggle{display:none;}
.nav-burger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);background:#fff;cursor:pointer;padding:0;flex-direction:column;align-items:center;justify-content:center;gap:4px;}
.nav-burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-text);}
.drawer{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--c-line);box-shadow:var(--shadow-2);padding:12px 20px 20px;}
.drawer a{display:flex;align-items:center;min-height:48px;font-size:16px;font-weight:600;color:var(--c-text);border-bottom:1px solid var(--c-line);}
.drawer a:last-child{border-bottom:0;}
.drawer a.is-active{color:var(--c-primary);}
@media (max-width:639px){
  .search-box{display:none;}
  .topbar-cta{display:none;}
  .nav-burger{display:flex;margin-left:auto;}
  .nav-toggle:checked ~ .drawer{display:block;}
}
.channelbar{border-top:1px solid var(--c-line);background:#fff;}
.channel-scroll{display:flex;align-items:center;gap:8px;height:48px;overflow-x:auto;scroll-snap-type:x proximity;-webkit-overflow-scrolling:touch;scrollbar-width:none;}
.channel-scroll::-webkit-scrollbar{display:none;}
.pill{flex:0 0 auto;scroll-snap-align:start;padding:8px 18px;border-radius:999px;font-size:14.5px;font-weight:600;color:var(--c-muted);background:transparent;transition:background 180ms var(--ease),color 180ms var(--ease);white-space:nowrap;}
.pill:hover{background:#EFEDF9;color:var(--c-primary);}
.pill.is-active{background:var(--c-primary);color:#fff;}
.pill.is-active:hover{background:var(--c-primary-600);color:#fff;}

/* ---------- 通用板块 ---------- */
section{padding:96px 0;}
@media (max-width:1023px){section{padding:72px 0;}}
@media (max-width:639px){section{padding:48px 0;}}
.section-head{margin-bottom:40px;max-width:760px;}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--c-teal-text);background:rgba(15,166,151,.12);padding:5px 14px;border-radius:999px;margin-bottom:14px;}
h1{font-size:40px;line-height:1.2;font-weight:700;}
h2{font-size:30px;line-height:1.3;font-weight:700;}
h3{font-size:21px;line-height:1.4;font-weight:600;}
.section-lead{font-size:16.5px;color:var(--c-muted);margin-top:14px;}
@media (max-width:639px){
  h1{font-size:28px;}
  h2{font-size:22px;}
  h3{font-size:19px;}
}

/* ---------- 分类首屏 ---------- */
.page-hero{background:linear-gradient(180deg,#FFFFFF 0%,var(--c-bg) 100%);border-bottom:1px solid var(--c-line);padding:56px 0 64px;}
@media (max-width:639px){.page-hero{padding:36px 0 44px;}}
.crumb{font-size:13px;color:var(--c-muted);margin-bottom:16px;}
.crumb a{color:var(--c-muted);}
.crumb a:hover{color:var(--c-primary);}
.hero-title{max-width:16em;}
.hero-sub{font-size:16.5px;color:var(--c-muted);margin-top:16px;max-width:34em;}
.pill-row{list-style:none;display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.tag{display:inline-flex;align-items:center;font-size:13px;font-weight:600;padding:6px 14px;border-radius:999px;background:#fff;border:1px solid var(--c-line);color:var(--c-muted);}
.tag-teal{background:rgba(15,166,151,.12);border-color:transparent;color:var(--c-teal-text);}
.tag-orange{background:rgba(255,122,89,.16);border-color:transparent;color:var(--c-orange-text);}
.tag-primary{background:var(--c-primary-050);border-color:transparent;color:var(--c-primary);}
.hero-figure{margin-top:8px;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--shadow-2);background:var(--c-primary-050);}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
@media (max-width:1023px){.hero-figure{margin-top:32px;}}

/* ---------- 时间线 ---------- */
.bg-white{background:var(--c-surface);}
.timeline{list-style:none;position:relative;margin:0;padding:0;}
.tl-item{position:relative;padding-left:78px;padding-bottom:36px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{content:"";position:absolute;left:19px;top:46px;bottom:6px;width:1px;background:var(--c-line);}
.tl-item:last-child::before{display:none;}
.tl-num{position:absolute;left:0;top:0;width:40px;height:40px;border-radius:50%;background:var(--c-primary);color:#fff;font-size:14.5px;font-weight:700;display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums;box-shadow:0 8px 18px -10px rgba(74,58,199,.95);}
.tl-body{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px 26px;box-shadow:var(--shadow-1);transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),border-color 180ms var(--ease);}
.tl-body:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(74,58,199,.35);}
.tl-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:10px;}
.tl-time{font-size:13px;color:var(--c-muted);font-variant-numeric:tabular-nums;}
.tl-title{font-size:19px;font-weight:600;line-height:1.4;}
.tl-text{font-size:15.5px;color:var(--c-muted);margin-top:8px;}
.tl-note{margin-top:14px;padding:12px 16px;border-left:3px solid var(--c-primary);background:var(--c-primary-050);border-radius:0 10px 10px 0;font-size:14.5px;color:#3A3560;}
@media (max-width:639px){
  .tl-item{padding-left:58px;padding-bottom:28px;}
  .tl-item::before{left:17px;top:42px;}
  .tl-num{width:36px;height:36px;font-size:13.5px;}
  .tl-body{padding:20px 18px;}
}

/* ---------- 非对称速览卡 ---------- */
.card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);overflow:hidden;display:flex;flex-direction:column;height:100%;transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),border-color 180ms var(--ease);}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(74,58,199,.35);}
.card:hover .card-media img{transform:scale(1.03);}
.card-media{overflow:hidden;background:var(--c-primary-050);}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 320ms var(--ease);}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.card-title{font-size:17.5px;font-weight:600;line-height:1.45;color:var(--c-text);}
.card:hover .card-title{color:var(--c-primary);}
.card-text{font-size:15px;color:var(--c-muted);}
.card-link{margin-top:auto;font-size:14.5px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;}
.card-wide{flex-direction:row;}
.card-wide .card-media{flex:0 0 46%;}
.card-wide .card-media img{height:100%;aspect-ratio:auto;min-height:260px;}
.card-wide .card-body{padding:30px 32px;justify-content:center;}
.card-wide .card-title{font-size:21px;}
@media (max-width:1023px){
  .card-wide{flex-direction:column;}
  .card-wide .card-media{flex:0 0 auto;}
  .card-wide .card-media img{aspect-ratio:16/9;min-height:0;height:auto;}
}
.speed-stack .cell{margin-bottom:24px;}
.speed-stack .card + .card{margin-top:0;}
@media (min-width:1024px){
  .speed-stack{display:flex;flex-direction:column;gap:24px;}
  .speed-stack .cell{margin-bottom:0;}
}

/* ---------- 订阅暗块 ---------- */
.subscribe{background:linear-gradient(160deg,var(--c-night) 0%,var(--c-night-2) 100%);color:#fff;position:relative;overflow:hidden;}
.subscribe::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.32) 1px,transparent 1.4px);background-size:26px 26px;opacity:.25;pointer-events:none;}
.subscribe .container{position:relative;z-index:1;}
.subscribe h2{color:#fff;}
.subscribe-lead{color:rgba(255,255,255,.72);font-size:16.5px;margin-top:14px;max-width:36em;}
.sub-form{display:flex;gap:12px;margin-top:28px;max-width:560px;}
.field-input{flex:1 1 auto;height:52px;border-radius:var(--r-input);border:1px solid var(--c-line);padding:0 18px;font-size:15.5px;font-family:inherit;color:var(--c-text);background:#fff;transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);min-width:0;}
.field-input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(74,58,199,.22);outline:none;}
.sub-form .btn{height:52px;border-radius:var(--r-input);padding:0 28px;}
.form-hint{font-size:13px;color:rgba(255,255,255,.62);margin-top:12px;}
.sub-visual{margin-top:32px;border-radius:var(--r-card);overflow:hidden;opacity:.55;}
.sub-visual img{width:100%;aspect-ratio:3/2;object-fit:cover;}
@media (max-width:639px){
  .sub-form{flex-direction:column;max-width:none;}
  .sub-form .btn{width:100%;}
}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px;}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:14px;margin-bottom:14px;overflow:hidden;transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);}
.faq-item[open]{border-color:rgba(74,58,199,.35);box-shadow:var(--shadow-1);background:var(--c-primary-050);}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:0 24px;min-height:62px;font-size:16.5px;font-weight:600;color:var(--c-text);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"";flex:0 0 auto;width:9px;height:9px;border-right:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);transform:rotate(45deg);transition:transform 200ms var(--ease);margin-top:-4px;}
.faq-item[open] summary::after{transform:rotate(-135deg);margin-top:4px;}
.faq-answer{padding:0 24px 22px 27px;border-left:3px solid var(--c-primary);margin-left:24px;font-size:15px;line-height:1.85;color:#3A3560;}

/* ---------- CTA 条 ---------- */
.cta-band{background:var(--c-primary-050);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);padding:56px 0;}
@media (max-width:639px){.cta-band{padding:40px 0;}}
.cta-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;}
.cta-copy h2{font-size:24px;}
.cta-copy p{font-size:15.5px;color:var(--c-muted);margin-top:8px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-night);color:rgba(255,255,255,.78);padding:72px 0 0;position:relative;overflow:hidden;}
.site-footer::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.28) 1px,transparent 1.4px);background-size:30px 30px;opacity:.18;pointer-events:none;}
.site-footer .container{position:relative;z-index:1;}
.footer-grid{padding-bottom:48px;}
.foot-brand{font-size:19px;font-weight:700;color:#fff;margin-bottom:14px;}
.foot-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.7);max-width:20em;}
.foot-kw{font-size:13px;color:var(--c-teal);margin-top:14px;}
.foot-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.foot-links{list-style:none;}
.foot-links li{margin-bottom:6px;}
.foot-links a,.foot-links span{font-size:14px;line-height:1.9;color:rgba(255,255,255,.78);}
.foot-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.foot-form{display:flex;flex-direction:column;gap:12px;}
.foot-form .field-input{height:46px;border-radius:12px;background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.24);color:#fff;}
.foot-form .field-input::placeholder{color:rgba(255,255,255,.55);}
.foot-form .field-input:focus{border-color:rgba(255,255,255,.7);box-shadow:0 0 0 3px rgba(255,255,255,.16);}
.foot-bottom{border-top:1px solid rgba(255,255,255,.14);padding:22px 0 28px;display:flex;flex-wrap:wrap;gap:10px 28px;font-size:13px;color:rgba(255,255,255,.65);}
@media (max-width:1023px){
  .footer-grid .cell{margin-bottom:36px;}
}
@media (max-width:639px){
  .site-footer{padding-top:52px;}
  .cta-row{flex-direction:column;align-items:flex-start;}
}

/* ---------- Foundation 覆盖 ---------- */
.button{font-family:var(--font-sans);border-radius:999px;background:var(--c-primary);padding:14px 26px;font-size:15px;font-weight:600;transition:background 180ms var(--ease),transform 180ms var(--ease);}
.button:hover{background:var(--c-primary-600);transform:translateY(-1px);}
.callout{background:var(--c-primary-050);border:0;border-left:3px solid var(--c-primary);border-radius:0 12px 12px 0;color:#3A3560;}
.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-margin-x > .cell{padding-left:12px;padding-right:12px;}
@media (max-width:639px){
  .grid-margin-x{margin-left:-8px;margin-right:-8px;}
  .grid-margin-x > .cell{padding-left:8px;padding-right:8px;}
}

/* roulang page: category4 */
:root{
  --c-primary:#4A3AC7;
  --c-primary-600:#3A2CA8;
  --c-primary-050:#EEECFB;
  --c-orange:#FF7A59;
  --c-orange-ink:#8A3A22;
  --c-teal:#0FA697;
  --c-teal-ink:#0B7A6F;
  --c-night:#171233;
  --c-night-2:#2A2160;
  --c-bg:#F7F6FC;
  --c-surface:#FFFFFF;
  --c-line:#E6E3F2;
  --c-ink:#1B1436;
  --c-muted:#6B6685;
  --r-card:16px;
  --r-img:14px;
  --r-input:12px;
  --shadow-1:0 1px 2px rgba(27,20,54,.06);
  --shadow-2:0 10px 30px -12px rgba(27,20,54,.22);
  --ease:180ms cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-padding-top:132px;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease);}
a:hover{color:var(--c-primary-600);}
p a{text-decoration:underline;text-underline-offset:3px;}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;letter-spacing:0;}
h1{font-size:40px;line-height:1.2;}
h2{font-size:30px;line-height:1.3;}
h3{font-size:21px;line-height:1.4;font-weight:600;}
p{margin:0 0 1.1em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}

/* Foundation 覆盖 */
.button{border-radius:999px;background:var(--c-primary);font-weight:600;transition:all var(--ease);}
.button:hover{background:var(--c-primary-600);}
.callout{background:var(--c-primary-050);border:none;border-radius:14px;color:var(--c-ink);}
input,textarea,select{font-family:inherit;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;padding:12px 26px;font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;text-decoration:none;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 10px 22px -12px rgba(74,58,199,.85);}
.btn-primary:hover{background:var(--c-primary-600);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:transparent;color:var(--c-primary);border-color:rgba(74,58,199,.35);}
.btn-outline:hover{background:var(--c-primary-050);color:var(--c-primary-600);transform:translateY(-1px);}
.btn-orange{background:var(--c-orange);color:#2A1608;font-weight:700;}
.btn-orange:hover{background:#FF9179;color:#2A1608;transform:translateY(-1px);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-1px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-lg{padding:15px 34px;font-size:16px;}
.btn:focus-visible,a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:none;box-shadow:0 0 0 3px rgba(74,58,199,.25);
}

/* 头部 */
.site-header{position:sticky;top:0;z-index:120;}
.topbar{background:rgba(255,255,255,.96);border-bottom:1px solid var(--c-line);}
.topbar-inner{display:flex;align-items:center;gap:24px;height:68px;}
.brand{display:flex;align-items:baseline;gap:8px;flex-shrink:0;}
.brand-mark{font-size:20px;font-weight:700;color:var(--c-ink);line-height:1;}
.brand-sub{
  font-size:12px;font-weight:600;color:var(--c-primary);
  background:var(--c-primary-050);border:1px solid rgba(74,58,199,.18);
  padding:3px 9px;border-radius:999px;line-height:1.2;
}
.search-box{
  display:flex;align-items:center;margin-left:auto;
  width:280px;height:42px;border:1px solid var(--c-line);border-radius:999px;
  background:var(--c-bg);overflow:hidden;transition:width var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.search-box:focus-within{width:360px;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(74,58,199,.16);}
.search-input{
  flex:1;border:0;background:transparent;height:100%;padding:0 18px;
  font-size:14.5px;color:var(--c-ink);outline:none;
}
.search-input::placeholder{color:#9C97B4;}
.search-btn{
  border:0;background:transparent;color:var(--c-primary);
  font-size:14px;font-weight:600;padding:0 18px;height:100%;cursor:pointer;
}
.search-btn:hover{color:var(--c-primary-600);}
.top-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:12px;
  background:#fff;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transition:transform var(--ease),opacity var(--ease);}
.menu-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-toggle.is-open span:nth-child(2){opacity:0;}
.menu-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* 频道 Tabs */
.channelbar{background:#fff;border-bottom:1px solid var(--c-line);}
.channel-scroll{
  display:flex;align-items:center;gap:10px;height:48px;
  overflow-x:auto;overflow-y:hidden;scroll-snap-type:x proximity;
  scrollbar-width:none;-ms-overflow-style:none;
}
.channel-scroll::-webkit-scrollbar{display:none;}
.pill{
  flex:0 0 auto;scroll-snap-align:start;white-space:nowrap;
  padding:8px 18px;border-radius:999px;font-size:14.5px;font-weight:500;
  color:var(--c-muted);background:transparent;line-height:1.4;
}
.pill:hover{background:#EFEDF9;color:var(--c-primary-600);}
.pill.is-active{background:var(--c-primary);color:#fff;font-weight:600;}
.pill.is-active:hover{background:var(--c-primary-600);color:#fff;}

/* 移动抽屉 */
.drawer{
  position:fixed;top:0;right:0;width:82%;max-width:340px;height:100%;
  background:#fff;border-left:1px solid var(--c-line);box-shadow:var(--shadow-2);
  padding:26px 22px;transform:translateX(105%);transition:transform var(--ease);
  z-index:200;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(23,18,51,.42);opacity:0;visibility:hidden;
  transition:opacity var(--ease),visibility var(--ease);z-index:190;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer-title{font-size:13px;font-weight:600;color:var(--c-muted);margin-bottom:12px;}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:24px;}
.drawer-nav a{
  display:block;padding:13px 14px;border-radius:12px;color:var(--c-ink);
  font-size:15px;min-height:44px;border:1px solid transparent;
}
.drawer-nav a:hover{background:var(--c-primary-050);color:var(--c-primary-600);}
.drawer-nav a.is-active{background:var(--c-primary);color:#fff;font-weight:600;}
.drawer-form{display:flex;flex-direction:column;gap:10px;}

/* 板块 */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--c-muted);font-size:15.5px;margin:0;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;color:var(--c-teal-ink);
  background:rgba(15,166,151,.12);padding:4px 12px;border-radius:999px;margin-bottom:14px;
}

/* Hero */
.cat-hero{
  position:relative;background:var(--c-surface);
  border-bottom:1px solid var(--c-line);padding:52px 0 58px;overflow:hidden;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(74,58,199,.16) 1px,transparent 1px);
  background-size:26px 26px;opacity:.5;pointer-events:none;
}
.cat-hero .container{position:relative;z-index:1;}
.hero-grid{align-items:center;}
.hero-copy h1{margin-bottom:16px;}
.hero-copy h1 .hl{color:var(--c-primary);}
.hero-lead{font-size:16.5px;color:var(--c-muted);max-width:560px;margin-bottom:22px;}
.hero-pills{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;
  padding:6px 14px;border-radius:999px;background:var(--c-primary-050);color:var(--c-primary-600);
}
.tag-teal{background:rgba(15,166,151,.12);color:var(--c-teal-ink);}
.tag-orange{background:rgba(255,122,89,.16);color:var(--c-orange-ink);}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
.hero-figure{
  border-radius:20px;overflow:hidden;border:1px solid var(--c-line);
  box-shadow:var(--shadow-2);background:var(--c-primary-050);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;border-radius:0;}

/* 快速定位卡 */
.quick-card{
  display:block;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px 22px;height:100%;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.quick-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(74,58,199,.35);}
.quick-icon{
  width:44px;height:44px;border-radius:12px;background:var(--c-primary-050);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px;
}
.quick-card h3{font-size:17px;margin-bottom:8px;}
.quick-card p{font-size:14.5px;color:var(--c-muted);margin:0 0 12px;line-height:1.75;}
.quick-more{font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;}

/* FAQ */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--c-line);border-radius:14px;
  margin-bottom:14px;box-shadow:var(--shadow-1);overflow:hidden;
  transition:border-color var(--ease),background-color var(--ease),box-shadow var(--ease);
}
.faq-item summary{
  list-style:none;cursor:pointer;padding:19px 24px;font-size:16.5px;font-weight:600;
  display:flex;align-items:center;justify-content:space-between;gap:18px;color:var(--c-ink);
  min-height:60px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .chev{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  background:var(--c-primary-050);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:12px;
  transition:transform var(--ease),background-color var(--ease),color var(--ease);
}
.faq-item[open]{background:var(--c-primary-050);border-color:rgba(74,58,199,.35);}
.faq-item[open] summary .chev{transform:rotate(180deg);background:var(--c-primary);color:#fff;}
.faq-body{
  padding:4px 24px 22px 26px;border-left:3px solid var(--c-primary);
  font-size:15px;line-height:1.85;color:#3A3457;margin-left:2px;
}
.faq-body p{margin:0 0 10px;}
.faq-body p:last-child{margin-bottom:0;}

/* 对比卡 */
.compare-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px 24px;height:100%;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(74,58,199,.35);}
.compare-head{display:flex;align-items:center;gap:10px;margin-bottom:6px;}
.compare-card h3{font-size:19px;}
.compare-note{font-size:14px;color:var(--c-muted);margin:0 0 18px;}
.prop{display:flex;justify-content:space-between;gap:14px;padding:12px 0;border-top:1px solid var(--c-line);font-size:14.5px;}
.prop-k{color:var(--c-muted);flex:0 0 auto;}
.prop-v{color:var(--c-ink);text-align:right;font-weight:500;}

/* 自助排查图文 */
.check-panel{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:30px 28px;box-shadow:var(--shadow-1);height:100%;
}
.step-list li{
  display:flex;gap:16px;padding:16px 0;border-bottom:1px dashed var(--c-line);
}
.step-list li:last-child{border-bottom:0;padding-bottom:0;}
.step-num{
  flex:0 0 auto;width:30px;height:30px;border-radius:50%;background:var(--c-primary);color:#fff;
  font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.step-txt strong{display:block;font-size:16px;font-weight:600;margin-bottom:4px;}
.step-txt span{font-size:14.5px;color:var(--c-muted);line-height:1.75;}
.media-figure{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--shadow-1);}
.media-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;}

/* CTA 暗块 */
.cta-band{
  position:relative;background:linear-gradient(160deg,var(--c-night) 0%,var(--c-night-2) 100%);
  padding:72px 0;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.22) 1px,transparent 1px);
  background-size:30px 30px;opacity:.35;pointer-events:none;
}
.cta-inner{position:relative;z-index:1;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;}
.cta-title{color:#fff;font-size:28px;margin-bottom:10px;}
.cta-sub{color:rgba(255,255,255,.72);font-size:15.5px;margin:0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* 页脚 */
.site-footer{background:var(--c-night);color:rgba(255,255,255,.78);padding:72px 0 0;font-size:14px;}
.footer-grid{padding-bottom:44px;}
.foot-brand{color:#fff;font-size:19px;font-weight:700;margin-bottom:12px;}
.foot-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);margin:0 0 12px;}
.foot-kw{font-size:13px;color:var(--c-teal);margin:0;letter-spacing:0;}
.foot-title{font-size:15px;font-weight:600;color:#fff;margin:0 0 16px;}
.foot-links li{font-size:14px;line-height:1.9;margin-bottom:8px;color:rgba(255,255,255,.68);}
.foot-links a{color:rgba(255,255,255,.78);}
.foot-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.foot-form{display:flex;flex-direction:column;gap:10px;}
.field-input{
  height:48px;border-radius:var(--r-input);border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.08);color:#fff;padding:0 16px;font-size:14px;outline:none;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field-input::placeholder{color:rgba(255,255,255,.5);}
.field-input:focus{border-color:var(--c-teal);box-shadow:0 0 0 3px rgba(15,166,151,.25);}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:12px 28px;align-items:center;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;
  font-size:13px;color:rgba(255,255,255,.65);
}

/* 响应式 */
@media screen and (max-width:1023px){
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
  h1{font-size:32px;}
  h2{font-size:25px;}
  .search-box{width:240px;}
  .search-box:focus-within{width:300px;}
  .hero-copy{margin-bottom:34px;}
}
@media screen and (max-width:639px){
  .container{padding:0 20px;}
  .section{padding:48px 0;}
  .section-tight{padding:40px 0;}
  h1{font-size:28px;}
  h2{font-size:22px;}
  h3{font-size:18px;}
  body{font-size:16px;}
  .topbar-inner{height:56px;gap:12px;}
  .brand-mark{font-size:17px;}
  .brand-sub{font-size:11px;padding:2px 7px;}
  .search-box{display:none;}
  .menu-toggle{display:flex;}
  .desktop-cta{display:none;}
  .channel-scroll{height:46px;padding-left:0;padding-right:0;}
  .cat-hero{padding:34px 0 40px;}
  .hero-lead{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .faq-item summary{padding:16px 18px;font-size:15.5px;}
  .faq-body{padding:0 18px 18px 20px;}
  .cta-band{padding:48px 0;}
  .cta-title{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .prop{flex-direction:column;gap:4px;}
  .prop-v{text-align:left;}
}