/* roulang page: index */
:root{
  --brand:#6C4BFF;
  --brand-hover:#5A38F0;
  --brand-active:#4A2BD8;
  --brand-soft:#EFEBFF;
  --cyan:#12D6B4;
  --cyan-soft:#E3FBF6;
  --amber:#FF9F1C;
  --amber-soft:#FFF4E3;
  --ink:#1A1633;
  --ink-2:#5A5573;
  --ink-3:#8C87A6;
  --bg:#F6F5FB;
  --bg-alt:#FBFAFF;
  --card:#FFFFFF;
  --line:#E6E3F2;
  --line-2:#EFEDF7;
  --dark-1:#140F2B;
  --dark-2:#241A4D;
  --ok:#12B76A;
  --warn:#F04438;
  --r-card:18px;
  --r-lg:28px;
  --r-sm:12px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(20,15,43,.06);
  --sh2:0 8px 24px -8px rgba(20,15,43,.14);
  --sh3:0 24px 60px -20px rgba(108,75,255,.35);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-hover);}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);line-height:1.3;}
p{margin:0 0 14px;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(108,75,255,.35);outline-offset:2px;border-radius:6px;}
.shell{
  width:100%;
  max-width:1320px;
  margin:0 auto;
  padding-left:16px;
  padding-right:16px;
}
@media (min-width:992px){
  .shell{padding-left:28px;padding-right:28px;}
}
.section{padding:56px 0;}
@media (min-width:992px){
  .section{padding:96px 0;}
}
.section--alt{background:var(--bg-alt);}
.sec-head{max-width:760px;margin-bottom:36px;}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.04em;font-weight:600;
  color:var(--brand);background:var(--brand-soft);
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:14px;
}
.sec-title{font-size:clamp(24px,3vw,36px);line-height:1.3;}
.sec-desc{margin-top:12px;color:var(--ink-2);font-size:15px;line-height:1.8;}
.text-cyan{color:var(--cyan);}
.text-muted-2{color:var(--ink-3);}

/* ============ 按钮 ============ */
.btn-pill{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:all .22s ease;white-space:nowrap;
}
.btn-primary-pill{background:var(--brand);color:#fff;}
.btn-primary-pill:hover{background:var(--brand-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh3);}
.btn-primary-pill:active{background:var(--brand-active);transform:translateY(0);}
.btn-ghost-pill{background:#fff;color:var(--brand);border-color:rgba(108,75,255,.55);}
.btn-ghost-pill:hover{background:var(--brand);color:#fff;border-color:var(--brand);transform:translateY(-1px);}
.btn-outline-light-pill{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-outline-light-pill:hover{background:#fff;color:var(--dark-1);border-color:#fff;}
.btn-amber-pill{background:var(--amber-soft);color:#8A5300;border-color:rgba(255,159,28,.4);}
.btn-amber-pill:hover{background:var(--amber);color:#fff;border-color:var(--amber);}
.btn-pill[disabled],.btn-pill.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ Dock 导航 ============ */
.dk-wrap{
  position:sticky;top:0;z-index:1030;
  padding:16px 16px 0;
  pointer-events:none;
}
.dock{
  pointer-events:auto;
  max-width:1080px;margin:0 auto;
  display:flex;align-items:center;gap:18px;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  box-shadow:var(--sh2);
  padding:10px 14px 10px 18px;
  transition:padding .25s ease,box-shadow .25s ease;
}
.dock.is-scrolled{padding:6px 12px 6px 14px;box-shadow:0 12px 32px -14px rgba(20,15,43,.28);}
.dock-logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:34px;height:34px;border-radius:11px;
  background:linear-gradient(135deg,var(--brand),var(--cyan));
  color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:15px;
  transition:width .25s ease,height .25s ease;
}
.dock.is-scrolled .logo-mark{width:30px;height:30px;font-size:13px;}
.logo-text{font-size:16px;font-weight:700;color:var(--ink);letter-spacing:.01em;}
.dock-menu{display:none;align-items:center;gap:2px;margin-left:auto;flex-wrap:nowrap;}
.dock-menu a{
  display:inline-flex;align-items:center;height:40px;padding:0 15px;
  border-radius:var(--r-pill);font-size:14px;font-weight:500;color:var(--ink-2);
  transition:all .2s ease;white-space:nowrap;
}
.dock-menu a:hover{background:var(--brand-soft);color:var(--brand);}
.dock-menu a.is-active{background:var(--dark-1);color:#fff;}
.dock-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.dock-cta{display:none;}
.dock-toggle{
  width:44px;height:44px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;color:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;
}
@media (min-width:1200px){
  .dock-menu{display:flex;}
  .dock-actions{margin-left:0;}
  .dock-cta{display:inline-flex;min-height:42px;padding:0 20px;font-size:14px;}
  .dock-toggle{display:none;}
}
@media (min-width:992px) and (max-width:1199.98px){
  .dock-menu{display:flex;overflow-x:auto;scrollbar-width:none;}
  .dock-menu::-webkit-scrollbar{display:none;}
  .dock-menu a{padding:0 11px;font-size:13px;}
  .dock-toggle{display:inline-flex;}
}

/* offcanvas 抽屉 */
.oc-panel{
  border:none;border-radius:24px 24px 0 0;background:#fff;
  max-width:100%;
}
.oc-panel .offcanvas-header{padding:20px 22px 8px;border-bottom:1px solid var(--line-2);}
.oc-panel .offcanvas-body{padding:16px 22px 22px;}
.oc-link{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;padding:0 14px;border-radius:14px;
  font-size:15px;font-weight:500;color:var(--ink-2);
}
.oc-link:hover{background:var(--brand-soft);color:var(--brand);}
.oc-link.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600;}
.oc-foot{position:sticky;bottom:0;padding-top:14px;background:linear-gradient(180deg,rgba(255,255,255,0),#fff 30%);}
.oc-foot .btn-pill{width:100%;}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,var(--dark-1) 0%,var(--dark-2) 100%);
  border-radius:0 0 32px 32px;
  padding:52px 0 60px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.22;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(760px 420px at 78% 18%,rgba(108,75,255,.42),transparent 62%),
             linear-gradient(180deg,rgba(20,15,43,.72),rgba(20,15,43,.94));
}
.hero .shell{position:relative;z-index:2;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.04em;font-weight:600;color:#C9BDFF;
  background:rgba(108,75,255,.2);border:1px solid rgba(108,75,255,.42);
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:20px;
}
.hero h1{
  font-size:clamp(30px,4.6vw,52px);line-height:1.2;font-weight:700;color:#fff;
  letter-spacing:-.01em;
}
.hero h1 em{font-style:normal;color:var(--cyan);}
.hero-sub{
  margin-top:20px;font-size:clamp(15px,1.6vw,18px);line-height:1.85;
  color:rgba(255,255,255,.78);max-width:620px;
}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(2,1fr);gap:14px;
  margin-top:40px;padding-top:28px;border-top:1px solid rgba(255,255,255,.14);
}
@media (min-width:768px){.hero-stats{grid-template-columns:repeat(4,1fr);}}
.hero-stat b{display:block;font-size:clamp(20px,2.4vw,28px);color:#fff;line-height:1.2;}
.hero-stat span{font-size:13px;color:rgba(255,255,255,.6);}
.hero-visual{position:relative;margin-top:44px;}
@media (min-width:992px){.hero-visual{margin-top:0;padding-left:24px;}}
.hv-main{
  border-radius:22px;overflow:hidden;border:1px solid rgba(255,255,255,.18);
  box-shadow:0 30px 70px -28px rgba(0,0,0,.7);
  transform:rotate(-1.6deg);
}
.hv-main img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.hv-sub{
  position:absolute;right:-6px;bottom:-26px;width:52%;
  border-radius:18px;overflow:hidden;border:1px solid rgba(255,255,255,.22);
  box-shadow:0 24px 50px -22px rgba(0,0,0,.75);
  transform:rotate(3deg);
}
.hv-sub img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hv-tag{
  position:absolute;left:-8px;top:18px;
  background:#fff;color:var(--ink);border-radius:14px;
  padding:10px 16px;box-shadow:var(--sh2);font-size:13px;font-weight:600;
  display:flex;align-items:center;gap:8px;
}

/* ============ 权益对比 ============ */
.cmp-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh1);overflow:hidden;
}
.cmp-scroll{overflow-x:auto;padding:0 0 4px;}
.cmp-table{width:100%;min-width:760px;border-collapse:separate;border-spacing:0;}
.cmp-table th,.cmp-table td{
  padding:18px 20px;font-size:14.5px;text-align:left;
  border-bottom:1px solid var(--line-2);
}
.cmp-table thead th{
  background:var(--dark-1);color:#fff;font-weight:600;font-size:14px;
  border-bottom:none;white-space:nowrap;
}
.cmp-table thead th:first-child{
  background:var(--dark-1);color:rgba(255,255,255,.7);font-weight:500;
}
.cmp-table tbody th{
  font-weight:500;color:var(--ink-2);background:#fff;white-space:nowrap;
}
.cmp-table tbody tr:last-child th,
.cmp-table tbody tr:last-child td{border-bottom:none;}
.cmp-table tbody tr:hover td{background:#FCFBFF;}
.cmp-table td{color:var(--ink-2);}
.cmp-rec{background:var(--brand-soft)!important;}
.cmp-table thead th.cmp-rec{background:var(--brand);color:#fff;}
.cmp-rec-label{
  display:inline-block;font-size:11px;letter-spacing:.04em;font-weight:700;
  background:var(--amber);color:#3A2200;border-radius:var(--r-pill);
  padding:2px 10px;margin-left:8px;
}
.cmp-yes{color:var(--cyan);font-weight:700;margin-right:6px;}
.cmp-no{color:var(--ink-3);}
.cmp-tier{display:block;font-size:16px;font-weight:700;color:var(--ink);}
.cmp-tier span{display:block;font-size:12px;font-weight:400;color:var(--ink-3);margin-top:2px;}
.cmp-note{margin-top:16px;font-size:13px;color:var(--ink-3);display:flex;align-items:center;gap:8px;}
@media (min-width:992px){
  .cmp-scroll{overflow:visible;}
  .cmp-table{min-width:0;}
}
.cmp-mobile-hint{display:block;font-size:12.5px;color:var(--ink-3);margin-top:12px;}
@media (min-width:992px){.cmp-mobile-hint{display:none;}}

/* ============ 等级阶梯 ============ */
.tier-grid{display:grid;gap:22px;grid-template-columns:1fr;}
@media (min-width:768px){.tier-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1200px){.tier-grid{grid-template-columns:repeat(4,1fr);}}
.tier-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px;box-shadow:var(--sh1);position:relative;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  display:flex;flex-direction:column;
}
.tier-card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:rgba(108,75,255,.3);}
@media (min-width:1200px){
  .tier-card:nth-child(2){margin-top:-16px;}
  .tier-card:nth-child(3){margin-top:-32px;}
  .tier-card:nth-child(4){margin-top:-48px;}
}
.tier-badge{
  width:42px;height:42px;border-radius:13px;display:inline-flex;
  align-items:center;justify-content:center;font-size:15px;font-weight:700;color:#fff;
}
.tier-name{margin-top:16px;font-size:19px;}
.tier-sub{font-size:13px;color:var(--ink-3);margin-top:4px;}
.tier-list{margin:18px 0 20px;flex:1;}
.tier-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;color:var(--ink-2);line-height:1.7;margin-bottom:10px;
}
.tier-list i{color:var(--cyan);margin-top:5px;font-size:12px;}
.tier-bar{height:6px;border-radius:var(--r-pill);background:var(--line-2);overflow:hidden;}
.tier-bar i{display:block;height:100%;border-radius:var(--r-pill);}
.tier-meta{display:flex;justify-content:space-between;font-size:12px;color:var(--ink-3);margin-top:8px;}

/* ============ 内容预览 ============ */
.prev-grid{display:grid;gap:22px;grid-template-columns:1fr;}
@media (min-width:576px){.prev-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:992px){.prev-grid{grid-template-columns:repeat(3,1fr);}}
@media (min-width:1200px){.prev-grid{grid-template-columns:repeat(3,1fr);}}
.prev-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh1);display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.prev-card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:rgba(108,75,255,.3);}
.prev-thumb{position:relative;overflow:hidden;}
.prev-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease;}
.prev-card:hover .prev-thumb img{transform:scale(1.04);}
.prev-tag{
  position:absolute;left:14px;bottom:14px;
  font-size:11.5px;letter-spacing:.04em;font-weight:600;
  background:rgba(108,75,255,.92);color:#fff;padding:4px 12px;border-radius:var(--r-pill);
}
.prev-tag--cyan{background:rgba(18,214,180,.94);color:#04302A;}
.prev-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.prev-body h3{font-size:17px;line-height:1.45;}
.prev-body p{font-size:14px;color:var(--ink-2);line-height:1.75;margin:10px 0 16px;flex:1;}
.prev-foot{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3);}
.prev-foot a{font-weight:600;font-size:13.5px;}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;gap:20px;grid-template-columns:1fr;}
@media (min-width:768px){.news-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1200px){.news-grid{grid-template-columns:repeat(3,1fr);}}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh1);display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:rgba(108,75,255,.3);}
.news-top{display:flex;align-items:center;gap:10px;margin-bottom:14px;flex-wrap:wrap;}
.badge-cat{
  font-size:11.5px;font-weight:600;letter-spacing:.04em;
  background:var(--brand-soft);color:var(--brand);
  padding:4px 12px;border-radius:var(--r-pill);
}
.badge-cat--cyan{background:var(--cyan-soft);color:#0A7A65;}
.news-time{font-size:12.5px;color:var(--ink-3);}
.news-card h3{font-size:17px;line-height:1.5;}
.news-card h3 a{color:var(--ink);}
.news-card h3 a:hover{color:var(--brand);}
.news-card p{
  font-size:14px;color:var(--ink-2);line-height:1.75;margin:10px 0 18px;flex:1;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-more{
  font-size:13.5px;font-weight:600;display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);margin-top:auto;
}
.news-more i{font-size:11px;transition:transform .2s ease;}
.news-more:hover i{transform:translateX(4px);}
.empty-state{
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);
  padding:56px 24px;text-align:center;
}
.empty-state .empty-icon{
  width:64px;height:64px;margin:0 auto 18px;border-radius:20px;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:24px;
}
.empty-state p{color:var(--ink-2);font-size:15px;margin-bottom:18px;}

/* ============ FAQ ============ */
.faq-list{max-width:900px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  margin-bottom:14px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:has(.accordion-button:not(.collapsed)){border-color:rgba(108,75,255,.32);box-shadow:var(--sh2);}
.faq-item .accordion-button{
  background:#fff;border:none;box-shadow:none!important;
  font-size:16px;font-weight:600;color:var(--ink);
  padding:20px 22px;display:flex;align-items:center;gap:12px;
  border-radius:14px;
}
.faq-item .accordion-button::after{
  margin-left:auto;background-image:none;
  content:"\f054";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:12px;color:var(--brand);
  width:auto;height:auto;transition:transform .25s ease;
}
.faq-item .accordion-button:not(.collapsed){color:var(--brand);}
.faq-item .accordion-button:not(.collapsed)::after{transform:rotate(90deg);}
.faq-item .accordion-body{
  padding:0 22px 22px 22px;font-size:15px;line-height:1.9;color:var(--ink-2);
  border-left:3px solid var(--brand);margin-left:22px;padding-left:19px;
}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,var(--dark-1),var(--dark-2));
  border-radius:var(--r-lg);
  padding:44px 28px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.12;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(600px 300px at 88% 0%,rgba(18,214,180,.22),transparent 60%);
}
.cta-inner{position:relative;z-index:2;}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,32px);}
.cta-band p{color:rgba(255,255,255,.72);font-size:15px;margin-top:12px;}
.cta-points{margin:22px 0 0;}
.cta-points li{
  display:flex;gap:10px;align-items:flex-start;
  color:rgba(255,255,255,.84);font-size:14.5px;margin-bottom:10px;
}
.cta-points i{color:var(--cyan);margin-top:6px;font-size:12px;}
.cta-btns{display:flex;flex-direction:column;gap:14px;margin-top:28px;}
@media (min-width:576px){.cta-btns{flex-direction:row;flex-wrap:wrap;}}
@media (min-width:992px){.cta-btns{margin-top:0;justify-content:flex-end;}}
@media (min-width:992px){.cta-band{padding:56px 48px;}}

/* ============ 页脚 ============ */
.site-foot{
  background:#fff;border-top:1px solid var(--line);
  margin-top:0;padding:56px 0 0;
}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.foot-brand .logo-mark{width:36px;height:36px;border-radius:12px;}
.foot-brand b{font-size:16px;}
.foot-col h4{font-size:14px;font-weight:700;margin-bottom:16px;}
.foot-col li{margin-bottom:11px;}
.foot-col a,.foot-col span{font-size:14px;color:var(--ink-2);}
.foot-col a:hover{color:var(--brand);}
.foot-desc{font-size:14px;color:var(--ink-2);line-height:1.85;max-width:340px;}
.foot-bottom{
  margin-top:44px;border-top:1px solid var(--line-2);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-3);
}
.foot-bottom a{color:var(--ink-3);}
.foot-bottom a:hover{color:var(--brand);}
.foot-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.foot-chips span{
  font-size:12px;color:var(--brand);background:var(--brand-soft);
  padding:4px 12px;border-radius:var(--r-pill);
}

/* 滚动进入动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s ease,transform .6s ease;}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
  --brand:#6C4BFF;--brand-h:#5A38F0;--brand-a:#4A2BD8;--brand-soft:#EFEBFF;
  --cyan:#12D6B4;--cyan-soft:#E4FBF6;--amber:#FF9F1C;--amber-soft:#FFF3E0;
  --ink:#1A1633;--ink-2:#5A5573;--ink-3:#8C87A6;
  --line:#E6E3F2;--line-2:#EFEDF7;
  --bg:#F6F5FB;--card:#FFFFFF;--bg-alt:#FBFAFF;
  --dark-1:#140F2B;--dark-2:#241A4D;
  --ok:#12B76A;--warn:#F04438;
  --r-card:18px;--r-mid:14px;--r-big:28px;--r-input:12px;--pill:999px;
  --sh1:0 1px 2px rgba(20,15,43,.06);
  --sh2:0 8px 24px -8px rgba(20,15,43,.14);
  --sh3:0 24px 60px -20px rgba(108,75,255,.35);
  --sec:clamp(56px,7vw,104px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;font-size:16px;line-height:1.85;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--ink)}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(108,75,255,.35);outline-offset:2px;border-radius:8px}
.shell{width:100%;max-width:1320px;margin:0 auto;padding:0 16px}
@media(min-width:992px){.shell{padding:0 28px}}
.sec{padding:var(--sec) 0}
.sec-alt{background:var(--bg-alt)}
.sec-head{max-width:760px;margin:0 auto 48px;text-align:center}
.sec-head h2{font-size:clamp(24px,3vw,36px);margin-bottom:14px}
.sec-head p{color:var(--ink-2);font-size:16px}
.sec-tag{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.06em;font-weight:600;color:var(--brand);background:var(--brand-soft);border-radius:var(--pill);padding:6px 14px;margin-bottom:16px}
.sec-head.left{text-align:left;margin-left:0}

/* ============ Dock 导航 ============ */
.dk-wrap{position:sticky;top:0;z-index:1040;padding:14px 16px 0}
.dk-wrap::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,var(--bg) 60%,rgba(246,245,251,0));pointer-events:none;z-index:-1}
.dock{max-width:1080px;margin:0 auto;display:flex;align-items:center;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--pill);padding:10px 16px;box-shadow:var(--sh2);transition:padding .28s ease,box-shadow .28s ease}
.dock.is-compact{padding:6px 14px;box-shadow:0 12px 32px -12px rgba(20,15,43,.22)}
.dock-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{width:36px;height:36px;border-radius:12px;display:grid;place-items:center;color:#fff;font-size:15px;background:linear-gradient(135deg,var(--brand),var(--cyan));box-shadow:0 6px 16px -6px rgba(108,75,255,.6);transition:width .28s ease,height .28s ease}
.dock.is-compact .logo-mark{width:30px;height:30px;border-radius:10px;font-size:13px}
.logo-text{font-weight:700;font-size:16px;letter-spacing:.01em;white-space:nowrap}
.dock-menu{display:flex;align-items:center;gap:2px;flex:1 1 auto;justify-content:center}
.dock-menu a{display:flex;align-items:center;height:40px;padding:0 14px;border-radius:var(--pill);font-size:15px;color:var(--ink-2);white-space:nowrap;transition:background .2s ease,color .2s ease}
.dock-menu a:hover{background:var(--line-2);color:var(--ink)}
.dock-menu a.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600}
.dock-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.btn-pill{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--pill);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease;white-space:nowrap}
.btn-primary-pill{background:var(--brand);color:#fff;box-shadow:0 10px 24px -12px rgba(108,75,255,.85)}
.btn-primary-pill:hover{background:var(--brand-h);transform:translateY(-1px);box-shadow:var(--sh3);color:#fff}
.btn-primary-pill:active{background:var(--brand-a)}
.btn-outline-pill{background:#fff;color:var(--brand);border-color:rgba(108,75,255,.45)}
.btn-outline-pill:hover{background:var(--brand);color:#fff;transform:translateY(-1px)}
.btn-ghost-pill{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost-pill:hover{background:#fff;color:var(--dark-1)}
.dock-cta{height:40px;padding:0 18px;font-size:14px}
.dock-toggle{display:none;width:44px;height:44px;border-radius:var(--pill);border:1px solid var(--line);background:#fff;color:var(--ink);font-size:17px}
.dock-toggle:hover{background:var(--brand-soft);color:var(--brand)}

/* 移动抽屉 */
.mobile-drawer{border-radius:24px 0 0 24px;border:0;width:min(88vw,360px)}
.mobile-drawer .offcanvas-header{padding:22px 22px 12px;border-bottom:1px solid var(--line-2)}
.mobile-drawer .offcanvas-body{padding:12px 14px 0}
.mobile-drawer .drawer-link{display:flex;align-items:center;gap:12px;height:48px;padding:0 14px;border-radius:var(--r-mid);color:var(--ink-2);font-size:15px}
.mobile-drawer .drawer-link:hover{background:var(--line-2);color:var(--ink)}
.mobile-drawer .drawer-link.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600}
.drawer-foot{position:sticky;bottom:0;padding:16px 8px;background:#fff;border-top:1px solid var(--line-2);margin-top:12px}
.drawer-foot .btn-pill{width:100%}
@media(max-width:991px){
  .dock-menu{display:none}
  .dock-toggle{display:grid;place-items:center}
  .dock{justify-content:space-between}
  .dock-cta{display:none}
}

/* ============ 面包屑 ============ */
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-3);padding:18px 0 0;flex-wrap:wrap}
.crumb a:hover{color:var(--brand)}
.crumb-cur{color:var(--brand);font-weight:600}

/* ============ Hero ============ */
.hero{position:relative;padding:36px 0 0}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding:44px 0 var(--sec)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.06em;font-weight:600;color:var(--brand);background:var(--brand-soft);border-radius:var(--pill);padding:7px 16px;margin-bottom:20px}
.hero h1{font-size:clamp(30px,4.6vw,52px);line-height:1.2;margin-bottom:18px;letter-spacing:-.015em}
.hero-sub{font-size:clamp(17px,2vw,20px);color:var(--ink-2);font-weight:500;margin-bottom:14px}
.hero-text{color:var(--ink-2);font-size:16px;max-width:560px;margin-bottom:28px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:14px;color:var(--ink-2)}
.hero-points li{display:flex;align-items:center;gap:8px}
.hero-points i{color:var(--cyan);font-size:15px}
.hero-media{position:relative}
.hero-media img{width:100%;border-radius:var(--r-big);border:1px solid rgba(108,75,255,.14);box-shadow:var(--sh3);object-fit:cover}
.hero-float{position:absolute;left:-14px;bottom:26px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--sh2);padding:14px 18px;display:flex;align-items:center;gap:12px;max-width:290px}
.hero-float b{display:block;font-size:14px;margin-bottom:2px}
.hero-float span{font-size:12px;color:var(--ink-3);line-height:1.5}
.dot{width:10px;height:10px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(18,214,180,.18);flex:0 0 auto}
@media(max-width:991px){
  .hero-grid{grid-template-columns:1fr;gap:36px;padding:32px 0 var(--sec)}
  .hero-float{position:static;margin-top:16px;max-width:none}
}

/* ============ 功能带 ============ */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feat{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:28px 24px;box-shadow:var(--sh1);transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;height:100%}
.feat:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:rgba(108,75,255,.35)}
.feat-ico{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;font-size:19px;color:var(--brand);background:var(--brand-soft);margin-bottom:18px}
.feat:nth-child(2) .feat-ico{color:#0E9C86;background:var(--cyan-soft)}
.feat:nth-child(3) .feat-ico{color:#B26A00;background:var(--amber-soft)}
.feat:nth-child(4) .feat-ico{color:var(--brand-a);background:#E9E5FF}
.feat h3{font-size:18px;margin-bottom:10px}
.feat p{font-size:15px;color:var(--ink-2);line-height:1.8}
@media(max-width:991px){.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:575px){.grid-4{grid-template-columns:1fr}}

/* ============ 图文分栏 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split-media img{width:100%;border-radius:var(--r-big);box-shadow:var(--sh2);border:1px solid var(--line)}
.split-copy h2{font-size:clamp(24px,3vw,36px);margin-bottom:16px}
.split-copy > p{color:var(--ink-2);margin-bottom:24px}
.req-list li{display:flex;gap:18px;padding:15px 0;border-bottom:1px dashed var(--line)}
.req-list li:first-child{padding-top:4px}
.req-list li:last-child{border-bottom:0}
.rk{flex:0 0 92px;font-size:14px;color:var(--ink-3)}
.rv{font-size:15px;color:var(--ink);line-height:1.7}
@media(max-width:991px){
  .split{grid-template-columns:1fr;gap:32px}
  .split-media{order:-1}
}

/* ============ 步骤流程 ============ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:30px 26px;box-shadow:var(--sh1);transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;height:100%}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:rgba(108,75,255,.35)}
.step-bar{height:6px;border-radius:var(--pill);background:linear-gradient(90deg,var(--cyan),var(--brand));margin-bottom:22px}
.step:nth-child(2) .step-bar{background:linear-gradient(90deg,var(--brand),#8C6BFF)}
.step:nth-child(3) .step-bar{background:linear-gradient(90deg,#8C6BFF,var(--dark-2))}
.step-no{font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--brand);margin-bottom:8px;display:block}
.step h3{font-size:19px;margin-bottom:12px}
.step p{font-size:15px;color:var(--ink-2)}
.step-note{margin-top:16px;font-size:13px;color:var(--ink-3);display:flex;gap:8px;align-items:flex-start}
.step-note i{color:var(--cyan);margin-top:4px}
@media(max-width:991px){.steps{grid-template-columns:1fr}}

/* ============ FAQ ============ */
.acc{max-width:900px;margin:0 auto}
.acc .accordion-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-mid);margin-bottom:14px;overflow:hidden;box-shadow:var(--sh1)}
.acc .accordion-button{display:flex;align-items:center;gap:12px;width:100%;padding:20px 24px;font-size:16px;font-weight:600;color:var(--ink);background:transparent;border:0;box-shadow:none;border-radius:var(--r-mid) !important;text-align:left;line-height:1.6}
.acc .accordion-button:not(.collapsed){color:var(--brand);background:var(--brand-soft);box-shadow:none;border-left:3px solid var(--brand)}
.acc .accordion-button:focus{box-shadow:none}
.acc .accordion-button::after{display:none}
.acc .chev{margin-left:auto;color:var(--ink-3);font-size:13px;transition:transform .25s ease,color .25s ease;flex:0 0 auto}
.acc .accordion-button:not(.collapsed) .chev{transform:rotate(90deg);color:var(--brand)}
.acc .accordion-body{padding:4px 24px 22px;font-size:15px;line-height:1.9;color:var(--ink-2)}
@media(max-width:575px){
  .acc .accordion-button{padding:16px 16px;font-size:15px}
  .acc .accordion-body{padding:2px 16px 18px}
}

/* ============ CTA 带 ============ */
.cta-band{position:relative;overflow:hidden;border-radius:var(--r-big);background:linear-gradient(135deg,var(--dark-1),var(--dark-2));padding:clamp(32px,5vw,60px);display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;color:#fff}
.cta-band::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.webp');background-size:cover;background-position:center;opacity:.13}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{color:#fff;font-size:clamp(23px,3vw,34px);margin-bottom:16px}
.cta-list{margin-top:6px;display:grid;gap:12px}
.cta-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:#D8D4EA}
.cta-list i{color:var(--cyan);margin-top:5px}
.cta-actions{display:flex;flex-direction:column;gap:14px}
.cta-actions .btn-pill{width:100%;height:50px}
.cta-hint{font-size:13px;color:#A9A3C4;text-align:center}
@media(max-width:991px){.cta-band{grid-template-columns:1fr;gap:28px}}

/* ============ 页脚 ============ */
.site-foot{background:var(--dark-1);color:#D8D4EA;padding:72px 0 26px;margin-top:var(--sec)}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.foot-brand b{color:#fff;font-size:17px}
.foot-desc{font-size:14px;line-height:1.85;color:#A9A3C4;max-width:400px}
.foot-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.foot-chips span{font-size:12px;padding:5px 12px;border-radius:var(--pill);background:rgba(255,255,255,.08);color:#D8D4EA}
.foot-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.foot-col ul{display:grid;gap:11px}
.foot-col li{font-size:14px;color:#A9A3C4;line-height:1.7}
.foot-col a{color:#A9A3C4;transition:color .2s ease}
.foot-col a:hover{color:#fff}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:44px;padding-top:20px;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:#8C87A6}
.foot-bottom a{color:#8C87A6}
.foot-bottom a:hover{color:#fff}
@media(max-width:575px){
  .site-foot{padding:52px 0 22px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
}

@media(prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
}

/* roulang page: article */
:root{
  --brand:#6C4BFF;
  --brand-hover:#5A38F0;
  --brand-active:#4A2BD8;
  --brand-soft:#EFEBFF;
  --cyan:#12D6B4;
  --cyan-soft:#E4FBF6;
  --amber:#FF9F1C;
  --amber-soft:#FFF3E0;
  --ink:#1A1633;
  --ink-2:#5A5573;
  --ink-3:#8C87A6;
  --bg:#F6F5FB;
  --surface:#FFFFFF;
  --alt:#FBFAFF;
  --line:#E6E3F2;
  --line-2:#EFEDF7;
  --ok:#12B76A;
  --warn:#F04438;
  --dark-1:#140F2B;
  --dark-2:#241A4D;
  --r-card:18px;
  --r-sm:14px;
  --r-lg:28px;
  --r-input:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,15,43,.06);
  --sh-2:0 8px 24px -8px rgba(20,15,43,.14);
  --sh-3:0 24px 60px -20px rgba(108,75,255,.35);
  --sect-y:56px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,opacity .18s ease}
button{font-family:inherit}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--ink);letter-spacing:-.01em}
p{margin:0}
:focus-visible{outline:3px solid rgba(108,75,255,.35);outline-offset:2px;border-radius:6px}
::selection{background:var(--brand-soft);color:var(--brand-active)}

.shell{width:100%;max-width:1320px;margin:0 auto;padding-left:16px;padding-right:16px}

/* ============ 按钮体系 ============ */
.btn-pill{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;text-decoration:none;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-pill:disabled,.btn-pill[disabled]{opacity:.4;cursor:not-allowed}
.btn-primary-pill{background:var(--brand);color:#fff;box-shadow:0 10px 24px -14px rgba(108,75,255,.9)}
.btn-primary-pill:hover{background:var(--brand-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3)}
.btn-primary-pill:active{background:var(--brand-active);transform:translateY(0);box-shadow:var(--sh-2)}
.btn-outline-pill{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-outline-pill:hover{background:var(--brand);color:#fff;transform:translateY(-1px);box-shadow:0 14px 30px -18px rgba(108,75,255,.9)}
.btn-ghost-pill{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn-ghost-pill:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}
.btn-soft-pill{background:var(--brand-soft);color:var(--brand-active)}
.btn-soft-pill:hover{background:#E3DBFF;color:var(--brand-active)}
.btn-sm-pill{height:38px;padding:0 18px;font-size:14px}

/* ============ 徽章 / 标签 ============ */
.chip{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.04em;line-height:1;
}
.chip-brand{background:var(--brand-soft);color:var(--brand-active)}
.chip-cyan{background:var(--cyan-soft);color:#0A9C82}
.chip-amber{background:var(--amber-soft);color:#B26A00}
.chip-ghost{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.28)}

/* ============ 浮动 Dock 导航 ============ */
.dk-wrap{position:sticky;top:0;z-index:1030;padding:14px 16px 0;pointer-events:none}
.dock{
  pointer-events:auto;
  max-width:1080px;margin:0 auto;
  display:flex;align-items:center;gap:14px;
  padding:9px 12px 9px 18px;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border:1px solid var(--line);border-radius:var(--r-pill);
  box-shadow:var(--sh-2);
  transition:padding .25s ease,box-shadow .25s ease,max-width .25s ease;
}
.dock.is-scrolled{padding:5px 10px 5px 14px;box-shadow:var(--sh-3);max-width:1000px}
.dock-logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;color:var(--ink);flex:0 0 auto}
.dock-logo:hover .logo-text{color:var(--brand)}
.logo-text{transition:color .18s ease,font-size .25s ease}
.logo-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),#8B6BFF);color:#fff;font-size:15px;
  box-shadow:0 8px 18px -8px rgba(108,75,255,.9);
  transition:width .25s ease,height .25s ease,font-size .25s ease,border-radius .25s ease;
}
.dock.is-scrolled .logo-mark{width:28px;height:28px;border-radius:9px;font-size:13px}
.dock.is-scrolled .logo-text{font-size:15px}
.dock-menu{list-style:none;display:flex;align-items:center;gap:2px;margin:0 auto;padding:0;flex-wrap:nowrap}
.dock-menu a{
  display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:500;color:var(--ink-2);white-space:nowrap;
}
.dock-menu a:hover{background:var(--brand-soft);color:var(--brand-active)}
.dock-menu a.is-active{background:var(--brand);color:#fff;box-shadow:0 10px 22px -14px rgba(108,75,255,.95)}
.dock-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.dock-cta{height:40px;padding:0 18px;font-size:14px}
.dock-toggle{
  display:none;width:42px;height:42px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand-active);border:0;place-items:center;font-size:16px;
}
.dock-toggle:hover{background:#E3DBFF}

/* 移动端抽屉 */
.offcanvas-end{border-top-left-radius:24px;border-bottom-left-radius:24px;border:0;box-shadow:var(--sh-3)}
.offcanvas-header{border-bottom:1px solid var(--line-2);padding:18px 20px;display:flex;align-items:center;gap:10px}
.offcanvas-title{font-size:16px;font-weight:700}
.m-nav{list-style:none;padding:0;margin:0 0 18px}
.m-nav li a{
  display:flex;align-items:center;height:48px;padding:0 12px;border-radius:var(--r-sm);
  font-size:15.5px;font-weight:500;color:var(--ink-2);
}
.m-nav li a:hover,.m-nav li a.is-active{background:var(--brand-soft);color:var(--brand-active)}
.m-cta{width:100%}
.m-hint{margin-top:18px;font-size:13px;line-height:1.8;color:var(--ink-3)}

/* ============ 文章页头部 ============ */
.art-hero{
  position:relative;margin-top:-70px;padding:132px 0 64px;
  background-image:linear-gradient(115deg,rgba(20,15,43,.96),rgba(36,26,77,.9)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  color:#fff;overflow:hidden;
}
.art-hero::after{
  content:"";position:absolute;right:-120px;top:-60px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,214,180,.28),transparent 68%);pointer-events:none;
}
.art-hero .shell{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.72);flex-wrap:wrap;margin-bottom:18px}
.crumb a{color:rgba(255,255,255,.72)}
.crumb a:hover{color:#fff}
.crumb i{font-size:10px;opacity:.6}
.crumb .now{color:#fff;font-weight:600}
.art-hero h1{
  color:#fff;
  font-size:clamp(26px,3.6vw,42px);
  line-height:1.28;font-weight:700;letter-spacing:-.02em;
  max-width:920px;margin-bottom:20px;
}
.art-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13.5px;color:rgba(255,255,255,.74)}
.art-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.4)}
.art-meta i{margin-right:6px;font-size:12px}

.read-bar{height:3px;background:var(--line-2);border-radius:3px;overflow:hidden;position:relative;z-index:3}
.read-bar span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--brand),var(--cyan));transition:width .12s linear}

/* ============ 正文布局 ============ */
.art-main{padding:56px 0 72px}
.art-layout{
  display:grid;
  grid-template-columns:minmax(0,760px) 300px;
  gap:56px;justify-content:center;align-items:start;
}
.art-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:34px 38px 42px;
}

/* 目录 */
.toc{
  position:sticky;top:96px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 20px 22px;box-shadow:var(--sh-1);
}
.toc h3{font-size:13px;letter-spacing:.08em;color:var(--ink-3);font-weight:700;text-transform:uppercase;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.toc h3 i{color:var(--brand)}
.toc ul{list-style:none}
.toc ul li{margin:2px 0}
.toc ul li a{
  display:block;padding:8px 12px;border-radius:10px;
  font-size:14px;line-height:1.55;color:var(--ink-2);
  border-left:2px solid transparent;
}
.toc ul li a:hover{background:var(--alt);color:var(--brand-active)}
.toc ul li a.lv3{padding-left:24px;font-size:13.5px;color:var(--ink-3)}
.toc ul li a.is-current{background:var(--brand-soft);color:var(--brand-active);border-left-color:var(--brand);font-weight:600}
.toc-card{margin-top:18px;padding:16px;border-radius:var(--r-sm);background:var(--alt);border:1px dashed var(--line);font-size:13px;line-height:1.8;color:var(--ink-3)}
.toc-card b{display:block;color:var(--ink);font-size:13.5px;margin-bottom:6px}
.toc-card a{color:var(--brand);font-weight:600}

.toc-mobile{display:none;margin-bottom:20px}
.toc-mobile summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  padding:14px 18px;border-radius:var(--r-sm);background:var(--surface);border:1px solid var(--line);
  font-size:14.5px;font-weight:600;color:var(--ink);box-shadow:var(--sh-1);
}
.toc-mobile summary::-webkit-details-marker{display:none}
.toc-mobile summary .arw{transition:transform .2s ease;color:var(--brand)}
.toc-mobile[open] summary .arw{transform:rotate(180deg)}
.toc-mobile ul{list-style:none;margin-top:10px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);padding:10px;box-shadow:var(--sh-1)}
.toc-mobile ul li a{display:block;padding:9px 12px;border-radius:10px;font-size:14px;color:var(--ink-2)}
.toc-mobile ul li a.lv3{padding-left:24px;font-size:13.5px;color:var(--ink-3)}

/* 正文排版 */
.article-body{font-size:17px;line-height:1.95;color:#2A2544}
.article-body>*:first-child{margin-top:0}
.article-body h2{
  font-size:clamp(20px,2.3vw,25px);line-height:1.42;font-weight:700;color:var(--ink);
  margin:2.2em 0 .8em;padding-left:16px;position:relative;scroll-margin-top:110px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--brand),var(--cyan));
}
.article-body h3{
  font-size:19px;line-height:1.5;font-weight:600;color:var(--ink);
  margin:1.8em 0 .6em;scroll-margin-top:110px;
}
.article-body h4{font-size:17px;font-weight:600;color:var(--ink);margin:1.5em 0 .5em}
.article-body p{margin:0 0 1.25em}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.4em}
.article-body ul li,.article-body ol li{margin:.42em 0}
.article-body ul{list-style:none;padding-left:0}
.article-body ul>li{position:relative;padding-left:24px}
.article-body ul>li::before{
  content:"";position:absolute;left:4px;top:.78em;width:8px;height:8px;border-radius:50%;
  background:var(--brand-soft);border:2px solid var(--brand);
}
.article-body ol{list-style:decimal}
.article-body ol>li::marker{color:var(--brand);font-weight:600}
.article-body blockquote{
  margin:1.6em 0;padding:18px 24px;background:var(--brand-soft);
  border-left:3px solid var(--brand);border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:#3A3460;font-size:16px;line-height:1.9;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-sm);margin:1.5em 0;box-shadow:var(--sh-2)}
.article-body figure{margin:1.7em 0}
.article-body figure img{margin:0}
.article-body figcaption{font-size:14px;color:var(--ink-3);text-align:center;margin-top:10px;line-height:1.7}
.article-body table{width:100%;border-collapse:collapse;margin:1.7em 0;font-size:15px;background:#fff;border-radius:var(--r-sm);overflow:hidden}
.article-body thead th{background:var(--brand-soft);color:#3A3460;font-weight:600;text-align:left;padding:13px 15px;border-bottom:1px solid var(--line)}
.article-body td{padding:13px 15px;border-bottom:1px solid var(--line-2);color:var(--ink-2)}
.article-body tbody tr:last-child td{border-bottom:0}
.article-body tbody tr:hover td{background:var(--alt)}
.article-body a{color:var(--brand);font-weight:500;text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-hover)}
.article-body strong{color:var(--ink);font-weight:600}
.article-body code{background:var(--brand-soft);color:var(--brand-active);padding:2px 7px;border-radius:6px;font-size:.9em}
.article-body pre{background:var(--dark-1);color:#E7E3FF;padding:20px;border-radius:var(--r-sm);overflow-x:auto;font-size:14px;line-height:1.75;margin:1.6em 0}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}

/* 文末信息 */
.art-foot{margin-top:40px;padding-top:26px;border-top:1px solid var(--line-2);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.art-foot .tags{display:flex;gap:8px;flex-wrap:wrap}
.art-foot .share{font-size:13.5px;color:var(--ink-3)}

/* 空态 */
.empty-state{
  text-align:center;padding:56px 24px;border:1px dashed var(--line);border-radius:var(--r-card);
  background:var(--alt);
}
.empty-state .ph{
  width:88px;height:88px;margin:0 auto 20px;border-radius:24px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);font-size:34px;
}
.empty-state h2{font-size:21px;margin-bottom:10px}
.empty-state p{color:var(--ink-3);font-size:15px;margin-bottom:22px}

/* ============ 相关推荐 ============ */
.art-related{padding:0 0 72px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:28px}
.sec-head h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3}
.sec-head p{color:var(--ink-3);font-size:14.5px;margin-top:8px;max-width:640px}
.sec-head .more{font-size:14.5px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.sec-head .more:hover{color:var(--brand-hover);gap:10px}

.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(108,75,255,.3)}
.rel-card .cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--brand-soft)}
.rel-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.rel-card:hover .cover img{transform:scale(1.05)}
.rel-card .cover .badge-float{
  position:absolute;left:12px;bottom:12px;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(20,15,43,.78);color:#fff;font-size:12px;font-weight:600;letter-spacing:.04em;
  display:inline-flex;align-items:center;backdrop-filter:blur(6px);
}
.rel-card .body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-card .time{font-size:12.5px;color:var(--ink-3);display:flex;align-items:center;gap:6px}
.rel-card h3{font-size:17px;line-height:1.55;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card:hover h3{color:var(--brand-active)}
.rel-card .sum{font-size:14px;line-height:1.75;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card .go{margin-top:auto;font-size:13.5px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px}

/* ============ 底部 CTA ============ */
.back-cta{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background-image:linear-gradient(120deg,rgba(20,15,43,.95),rgba(36,26,77,.92)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  color:#fff;padding:44px 46px;
  display:flex;align-items:center;justify-content:space-between;gap:34px;flex-wrap:wrap;
  box-shadow:var(--sh-2);
}
.back-cta::after{
  content:"";position:absolute;left:-80px;bottom:-120px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,75,255,.4),transparent 70%);pointer-events:none;
}
.back-cta .txt{position:relative;z-index:2;max-width:620px}
.back-cta h2{color:#fff;font-size:clamp(21px,2.5vw,28px);line-height:1.35;margin-bottom:14px}
.check-list{list-style:none;display:flex;flex-direction:column;gap:8px}
.check-list li{display:flex;align-items:center;gap:10px;font-size:14.5px;color:rgba(255,255,255,.8)}
.check-list li i{color:var(--cyan);font-size:13px}
.back-cta .acts{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-foot{background:var(--dark-1);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0}
.site-foot .foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.site-foot .foot-brand b{color:#fff;font-size:17px;font-weight:700}
.foot-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);margin-bottom:18px;max-width:380px}
.foot-chips{display:flex;flex-wrap:wrap;gap:8px}
.foot-chips span{height:26px;padding:0 12px;border-radius:var(--r-pill);background:rgba(255,255,255,.08);color:rgba(255,255,255,.68);font-size:12px;display:inline-flex;align-items:center;letter-spacing:.04em}
.foot-col h4{color:#fff;font-size:14px;font-weight:700;letter-spacing:.05em;margin-bottom:16px}
.foot-col ul{list-style:none}
.foot-col ul li{margin-bottom:10px}
.foot-col ul li a,.foot-col ul li span{font-size:14px;color:rgba(255,255,255,.62);line-height:1.7}
.foot-col ul li a:hover{color:#fff}
.foot-bottom{
  margin-top:48px;padding:22px 0;border-top:1px solid rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}
.foot-bottom a{color:rgba(255,255,255,.6)}
.foot-bottom a:hover{color:#fff}

/* ============ 响应式 ============ */
@media (min-width:992px){
  .shell{padding-left:28px;padding-right:28px}
  :root{--sect-y:96px}
  .art-main{padding:72px 0 88px}
  .art-related{padding-bottom:96px}
}
@media (max-width:1199.98px){
  .art-layout{grid-template-columns:minmax(0,1fr) 260px;gap:36px}
  .dock-menu a{padding:0 11px;font-size:14px}
}
@media (max-width:991.98px){
  .dock-menu{display:none}
  .dock-cta{display:none}
  .dock-toggle{display:grid}
  .dock{justify-content:space-between;padding:8px 10px 8px 14px}
  .art-layout{grid-template-columns:minmax(0,1fr);gap:0}
  .toc{display:none}
  .toc-mobile{display:block}
  .art-panel{padding:26px 24px 32px}
  .rel-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:767.98px){
  :root{--sect-y:56px}
  .art-hero{padding:110px 0 48px}
  .art-main{padding:40px 0 56px}
  .art-panel{padding:22px 18px 28px;border-radius:var(--r-card)}
  .article-body{font-size:16px;line-height:1.9}
  .rel-grid{grid-template-columns:1fr;gap:16px}
  .back-cta{padding:32px 24px;border-radius:var(--r-card)}
  .back-cta .acts{width:100%}
  .back-cta .acts .btn-pill{flex:1 1 auto}
  .foot-bottom{justify-content:flex-start}
}
@media (max-width:575.98px){
  .dock-logo .logo-text{font-size:14.5px;max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .art-hero h1{font-size:24px}
  .art-meta{font-size:12.5px}
  .art-foot{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --brand:#6C4BFF;
  --brand-hover:#5A38F0;
  --brand-active:#4A2BD8;
  --brand-soft:#EFEBFF;
  --cyan:#12D6B4;
  --amber:#FF9F1C;
  --ink:#1A1633;
  --ink-2:#5A5573;
  --ink-3:#8C87A6;
  --bg:#F6F5FB;
  --bg-alt:#FBFAFF;
  --card:#FFFFFF;
  --line:#E6E3F2;
  --line-soft:#EFEDF7;
  --success:#12B76A;
  --danger:#F04438;
  --dark-a:#140F2B;
  --dark-b:#241A4D;
  --r-card:18px;
  --r-big:28px;
  --r-input:12px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(20,15,43,.06);
  --sh2:0 8px 24px -8px rgba(20,15,43,.14);
  --sh3:0 24px 60px -20px rgba(108,75,255,.35);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.85;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-hover)}
img{max-width:100%;display:block;height:auto}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(108,75,255,.35);outline-offset:2px}
.shell{width:100%;max-width:1320px;margin:0 auto;padding:0 16px}
@media (min-width:992px){.shell{padding:0 28px}}

/* ---------- 浮动 Dock 导航 ---------- */
.dk-wrap{
  position:sticky;top:0;z-index:1040;
  padding:14px 16px 8px;
  background:linear-gradient(180deg,rgba(246,245,251,.96) 45%,rgba(246,245,251,0));
}
.dock{
  max-width:1080px;margin:0 auto;
  display:flex;align-items:center;gap:10px;
  padding:10px 12px 10px 18px;
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border:1px solid var(--line);border-radius:var(--r-pill);
  box-shadow:var(--sh2);
  transition:padding .25s ease,box-shadow .25s ease;
}
.dock.is-shrink{padding:6px 10px 6px 14px;box-shadow:var(--sh3)}
.dock-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink);font-weight:700}
.dock-logo:hover{color:var(--ink)}
.logo-mark{
  width:34px;height:34px;border-radius:12px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand),#8E6BFF);
  color:#fff;display:grid;place-items:center;font-size:15px;
  box-shadow:0 6px 16px -6px rgba(108,75,255,.65);
  transition:width .25s ease,height .25s ease,font-size .25s ease;
}
.dock.is-shrink .logo-mark{width:30px;height:30px;font-size:13px}
.logo-text{font-size:17px;letter-spacing:.01em;white-space:nowrap}
.dock-menu{display:flex;align-items:center;gap:2px;margin-left:auto}
.dock-menu a{
  display:inline-flex;align-items:center;height:40px;padding:0 14px;
  border-radius:var(--r-pill);font-size:15px;font-weight:500;color:var(--ink-2);
}
.dock-menu a:hover{background:var(--brand-soft);color:var(--brand)}
.dock-menu a.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600}
.dock-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;margin-left:6px}
.dock-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border:1px solid var(--line);background:#fff;border-radius:14px;
  color:var(--ink);font-size:17px;cursor:pointer;transition:all .2s ease;
}
.dock-toggle:hover{border-color:var(--brand);color:var(--brand)}

/* ---------- 按钮 ---------- */
.btn-pill{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary-pill{background:var(--brand);color:#fff;box-shadow:var(--sh2)}
.btn-primary-pill:hover,.btn-primary-pill:focus-visible{background:var(--brand-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh3)}
.btn-primary-pill:active{background:var(--brand-active);transform:translateY(0)}
.btn-ghost-pill{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-ghost-pill:hover{background:var(--brand);color:#fff}
.btn-line-pill{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-line-pill:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-sm-pill{min-height:40px;padding:0 18px;font-size:14px}
.btn-pill[disabled],.btn-pill.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 面包屑 ---------- */
.crumb{padding-top:20px;font-size:14px;color:var(--ink-3)}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center}
.crumb li{display:flex;align-items:center}
.crumb li:not(:last-child)::after{content:"/";margin:0 8px;color:#C9C4DD}
.crumb a{color:var(--ink-2)}
.crumb a:hover{color:var(--brand)}
.crumb .current{color:var(--brand);font-weight:600}

/* ---------- Hero ---------- */
.cat-hero{padding:28px 0 8px}
.hero-card{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-big);box-shadow:var(--sh2);
  padding:36px;overflow:hidden;
}
.hero-card::before{
  content:"";position:absolute;top:-90px;right:-70px;width:280px;height:280px;
  border-radius:50%;background:radial-gradient(circle,rgba(108,75,255,.14),rgba(108,75,255,0) 68%);
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--brand);background:var(--brand-soft);
  padding:6px 14px;border-radius:var(--r-pill);
}
.hero-copy h1{
  font-size:clamp(30px,4.6vw,52px);line-height:1.2;font-weight:700;
  letter-spacing:-.01em;margin:18px 0 16px;
}
.hero-lead{font-size:17px;line-height:1.9;color:var(--ink-2);max-width:560px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:32px;margin-top:32px;padding-top:24px;
  border-top:1px solid var(--line-soft);
}
.hero-stat b{display:block;font-size:24px;font-weight:700;color:var(--ink);line-height:1.3}
.hero-stat span{font-size:13px;color:var(--ink-3)}
.hero-media{position:relative}
.hero-media img{width:100%;border-radius:24px;box-shadow:var(--sh2);object-fit:cover}
.hero-media::after{
  content:"";position:absolute;right:-18px;bottom:-18px;width:120px;height:120px;
  border:2px solid rgba(108,75,255,.28);border-radius:22px;z-index:-1;
}

/* ---------- 板块通用 ---------- */
.sec{padding:56px 0}
@media (min-width:992px){.sec{padding:96px 0}}
.sec.tint{background:var(--bg-alt);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.sec-head{max-width:760px;margin-bottom:36px}
.sec-tag{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--cyan)}
.sec-title{font-size:clamp(24px,3vw,36px);line-height:1.3;font-weight:700;margin:12px 0 14px}
.sec-sub{font-size:16px;color:var(--ink-2);line-height:1.85}

/* ---------- 权益对比表 ---------- */
.compare-shell{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh1);overflow:hidden}
.compare-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.compare{width:100%;min-width:900px;border-collapse:collapse;font-size:15px}
.compare th,.compare td{padding:16px 18px;text-align:left;border-bottom:1px solid var(--line-soft);vertical-align:middle}
.compare thead th{
  background:linear-gradient(135deg,var(--dark-a),var(--dark-b));
  color:#fff;font-weight:600;font-size:15px;border-bottom:0;white-space:nowrap;
}
.compare thead th.col-rec{background:linear-gradient(135deg,#241A4D,#3A2A7A);box-shadow:inset 0 3px 0 var(--brand)}
.compare tbody tr:last-child td{border-bottom:0}
.compare tbody tr:hover td{background:var(--bg-alt)}
.compare td:first-child,.compare th:first-child{color:var(--ink-2);font-weight:600}
.compare td.col-rec{background:rgba(108,75,255,.06)}
.compare tbody tr:hover td.col-rec{background:rgba(108,75,255,.1)}
.rec-tag{
  display:inline-block;margin-left:8px;padding:2px 8px;border-radius:var(--r-pill);
  background:var(--amber);color:#2B1B00;font-size:11px;font-weight:700;letter-spacing:.02em;
}
.ok-ico{color:var(--cyan);font-size:13px;margin-right:6px}
.dash{color:#C9C4DD}
.scroll-hint{display:none;font-size:13px;color:var(--ink-3);padding:12px 4px 0}

/* ---------- 阶梯等级卡 ---------- */
.tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media (min-width:992px){
  .tier-grid{align-items:end}
  .tier-card:nth-child(1){margin-bottom:0}
  .tier-card:nth-child(2){margin-bottom:26px}
  .tier-card:nth-child(3){margin-bottom:52px}
}
.tier-card{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh1);padding:26px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.tier-card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:rgba(108,75,255,.3)}
.tier-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.tier-badge{
  font-size:12px;font-weight:700;letter-spacing:.04em;
  padding:5px 12px;border-radius:var(--r-pill);background:var(--brand-soft);color:var(--brand);
}
.tier-index{font-size:26px;font-weight:700;color:var(--line);letter-spacing:.02em;line-height:1}
.tier-name{font-size:20px;font-weight:700;margin:16px 0 6px}
.tier-use{font-size:14px;color:var(--ink-3);margin-bottom:14px;line-height:1.75}
.tier-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);padding:7px 0;line-height:1.7}
.tier-list i{color:var(--cyan);font-size:12px;margin-top:8px;flex:0 0 auto}
.tier-bar{height:6px;border-radius:var(--r-pill);background:var(--line-soft);margin-top:20px;overflow:hidden}
.tier-bar span{display:block;height:100%;border-radius:var(--r-pill)}
.bar-1{width:58%;background:linear-gradient(90deg,#12D6B4,#3FD0C0)}
.bar-2{width:80%;background:linear-gradient(90deg,#12D6B4,#6C4BFF)}
.bar-3{width:100%;background:linear-gradient(90deg,#6C4BFF,#3B2AA8)}

/* ---------- 流程 ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.flow-step{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh1);padding:24px;
  transition:transform .25s ease,box-shadow .25s ease;
}
.flow-step:hover{transform:translateY(-4px);box-shadow:var(--sh2)}
.flow-step::after{
  content:"";position:absolute;top:46px;right:-20px;width:20px;height:2px;
  background:linear-gradient(90deg,rgba(108,75,255,.4),rgba(108,75,255,0));
}
.flow-step:last-child::after{display:none}
.flow-num{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  font-weight:700;color:#fff;font-size:17px;
  background:linear-gradient(135deg,var(--brand),#8E6BFF);
  box-shadow:0 8px 18px -8px rgba(108,75,255,.75);
}
.flow-step h3{font-size:17px;font-weight:600;margin:16px 0 8px}
.flow-step p{font-size:14px;color:var(--ink-2);line-height:1.8}

/* ---------- 场景卡 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.scene-card{
  display:flex;gap:16px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh1);padding:22px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:rgba(108,75,255,.3)}
.scene-ico{
  flex:0 0 46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);font-size:18px;
}
.scene-card h3{font-size:17px;font-weight:600;margin-bottom:8px}
.scene-card p{font-size:14px;color:var(--ink-2);line-height:1.8}

/* ---------- 图文提示区 ---------- */
.tip-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:44px;align-items:center}
.tip-media img{width:100%;border-radius:var(--r-big);box-shadow:var(--sh2);object-fit:cover}
.tip-list li{
  display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed var(--line);
  font-size:15px;color:var(--ink-2);line-height:1.8;
}
.tip-list li:last-child{border-bottom:0}
.tip-list i{color:var(--cyan);margin-top:8px;font-size:13px;flex:0 0 auto}

/* ---------- FAQ ---------- */
.faq{max-width:900px}
.faq .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:14px!important;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--sh1);
}
.faq .accordion-button{
  font-size:16px;font-weight:600;color:var(--ink);background:#fff;
  padding:18px 22px;box-shadow:none;border-radius:14px!important;
}
.faq .accordion-button:hover{color:var(--brand)}
.faq .accordion-button:not(.collapsed){
  color:var(--brand);background:var(--brand-soft);
  box-shadow:inset 3px 0 0 var(--brand);
}
.faq .accordion-button:focus{box-shadow:inset 3px 0 0 var(--brand),0 0 0 3px rgba(108,75,255,.25);z-index:2}
.faq .accordion-button::after{
  content:"";flex:0 0 auto;width:10px;height:10px;margin-left:auto;
  border-right:2px solid currentColor;border-bottom:2px solid currentColor;
  background-image:none;transform:rotate(45deg);
  transition:transform .25s ease;
}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(-135deg)}
.faq .accordion-body{padding:16px 22px 22px;font-size:15px;line-height:1.9;color:var(--ink-2)}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;border-radius:var(--r-big);overflow:hidden;color:#fff;
  background:linear-gradient(135deg,var(--dark-a),var(--dark-b));
  padding:44px 36px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-3.webp) center/cover no-repeat;
  opacity:.12;
}
.cta-inner{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35;margin-bottom:18px}
.cta-checks li{display:flex;gap:10px;font-size:15px;color:rgba(255,255,255,.86);padding:6px 0;line-height:1.75}
.cta-checks i{color:var(--cyan);margin-top:8px;font-size:13px;flex:0 0 auto}
.cta-btns{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

/* ---------- 页脚 ---------- */
.site-foot{background:#fff;border-top:1px solid var(--line);padding:56px 0 0;margin-top:56px}
.foot-brand{display:flex;align-items:center;gap:10px;font-size:17px;margin-bottom:14px}
.foot-brand b{font-weight:700}
.foot-desc{font-size:14px;color:var(--ink-2);line-height:1.9;max-width:420px}
.foot-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.foot-chips span{
  font-size:12px;padding:5px 12px;border-radius:var(--r-pill);
  background:var(--bg);color:var(--ink-2);border:1px solid var(--line);
}
.foot-col h4{font-size:15px;font-weight:700;margin-bottom:16px}
.foot-col ul li{margin-bottom:10px}
.foot-col a{font-size:14px;color:var(--ink-2)}
.foot-col a:hover{color:var(--brand)}
.foot-col span{display:block;font-size:14px;color:var(--ink-3);line-height:1.8}
.foot-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  border-top:1px solid var(--line-soft);margin-top:44px;padding:22px 0 28px;
  font-size:13px;color:var(--ink-3);
}
.foot-bottom a{color:var(--ink-3)}
.foot-bottom a:hover{color:var(--brand)}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  width:min(86vw,360px);border:0;
  border-radius:24px 0 0 24px;
  box-shadow:var(--sh3);
}
.mobile-drawer .offcanvas-header{padding:20px 22px;border-bottom:1px solid var(--line-soft)}
.mobile-drawer .offcanvas-header .logo-text{font-size:16px}
.mobile-drawer .offcanvas-body{padding:16px 22px 28px;display:flex;flex-direction:column;gap:4px}
.drawer-link{
  display:flex;align-items:center;min-height:44px;padding:0 14px;
  border-radius:12px;font-size:15px;font-weight:500;color:var(--ink-2);
}
.drawer-link:hover{background:var(--brand-soft);color:var(--brand)}
.drawer-link.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600}
.drawer-cta{margin-top:18px;width:100%}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .hero-grid{gap:32px}
  .tier-grid{gap:18px}
  .tip-grid{gap:32px}
}
@media (max-width:991.98px){
  .dock{padding:8px 10px 8px 14px;border-radius:24px}
  .dock-menu{display:none}
  .dock-cta{display:none}
  .dock-toggle{display:inline-flex}
  .hero-card{padding:28px}
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .hero-media::after{display:none}
  .tier-grid{grid-template-columns:1fr;gap:16px}
  .tier-card:nth-child(n){margin-bottom:0}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .flow-step::after{display:none}
  .scene-grid{grid-template-columns:1fr}
  .tip-grid{grid-template-columns:1fr}
  .cta-inner{grid-template-columns:1fr;gap:26px}
  .cta-btns{justify-content:flex-start}
  .scroll-hint{display:block}
  .sec-head{margin-bottom:28px}
}
@media (max-width:575.98px){
  .hero-card{padding:22px;border-radius:24px}
  .hero-stats{gap:22px}
  .hero-stat b{font-size:21px}
  .flow-grid{grid-template-columns:1fr}
  .cta-band{padding:28px 20px;border-radius:24px}
  .compare th,.compare td{padding:14px 14px}
  .btn-pill{width:100%;padding:0 20px}
  .cta-btns{flex-direction:column;align-items:stretch}
  .hero-btns{flex-direction:column;align-items:stretch}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
  --brand:#6C4BFF;
  --brand-hover:#5A38F0;
  --brand-active:#4A2BD8;
  --brand-soft:#EFEBFF;
  --cyan:#12D6B4;
  --cyan-soft:#E4FBF6;
  --amber:#FF9F1C;
  --amber-soft:#FFF3E0;
  --ink:#1A1633;
  --ink-2:#5A5573;
  --ink-3:#8C87A6;
  --dark-1:#140F2B;
  --dark-2:#241A4D;
  --bg:#F6F5FB;
  --surface:#FFFFFF;
  --surface-alt:#FBFAFF;
  --line:#E6E3F2;
  --line-2:#EFEDF7;
  --ok:#12B76A;
  --warn:#F04438;
  --r-card:18px;
  --r-lg:28px;
  --r-input:12px;
  --r-sm:14px;
  --sh-1:0 1px 2px rgba(20,15,43,.06);
  --sh-2:0 8px 24px -8px rgba(20,15,43,.14);
  --sh-3:0 24px 60px -20px rgba(108,75,255,.35);
  --t:.22s cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:var(--t);}
a:hover{color:var(--brand-hover);}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:3px solid rgba(108,75,255,.35);
  outline-offset:2px;
  border-radius:8px;
}

.shell{width:100%;max-width:1320px;margin:0 auto;padding:0 16px;}
@media (min-width:992px){.shell{padding:0 28px;}}

.section{padding:56px 0;}
@media (min-width:992px){.section{padding:96px 0;}}
.section--tight{padding:40px 0;}
@media (min-width:992px){.section--tight{padding:64px 0;}}
.section--alt{background:var(--surface-alt);}

/* ============ 浮动 Dock 导航 ============ */
.dk-wrap{
  position:sticky;
  top:0;
  z-index:1030;
  padding:16px 16px 0;
  pointer-events:none;
}
.dock{
  pointer-events:auto;
  max-width:1080px;
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:18px;
  padding:10px 12px 10px 18px;
  background:rgba(255,255,255,.94);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:var(--sh-2);
  backdrop-filter:blur(10px);
  transition:var(--t);
}
.dock.is-shrink{
  padding:6px 10px 6px 16px;
  box-shadow:0 14px 34px -14px rgba(20,15,43,.24);
}
.dock-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:none;
  color:var(--ink);
  font-weight:700;
  font-size:16px;
  letter-spacing:.01em;
}
.dock-logo:hover{color:var(--ink);}
.logo-mark{
  width:34px;height:34px;
  border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand),#8C6BFF);
  color:#fff;font-size:15px;flex:none;
  box-shadow:0 6px 16px -8px rgba(108,75,255,.9);
  transition:var(--t);
}
.dock.is-shrink .logo-mark{width:30px;height:30px;border-radius:10px;font-size:13px;}
.dock-menu{
  display:flex;
  align-items:center;
  gap:4px;
  margin:0 auto;
}
.dock-menu a{
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  border-radius:999px;
  color:var(--ink-2);
  font-size:14.5px;
  font-weight:500;
  white-space:nowrap;
  transition:var(--t);
}
.dock-menu a:hover{background:var(--brand-soft);color:var(--brand);}
.dock-menu a.is-active{
  background:var(--brand-soft);
  color:var(--brand);
  font-weight:600;
}
.dock-actions{display:flex;align-items:center;gap:8px;flex:none;}
.dock-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink);
  font-size:16px;
  cursor:pointer;
  transition:var(--t);
}
.dock-toggle:hover{border-color:var(--brand);color:var(--brand);}

.btn-pill{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  min-height:46px;
  padding:0 22px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  cursor:pointer;
  transition:var(--t);
  white-space:nowrap;
}
.btn-primary-pill{background:var(--brand);color:#fff;box-shadow:var(--sh-2);}
.btn-primary-pill:hover{background:var(--brand-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3);}
.btn-primary-pill:active{background:var(--brand-active);transform:translateY(0);}
.btn-outline-pill{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-outline-pill:hover{background:var(--brand);color:#fff;transform:translateY(-1px);}
.btn-ghost-pill{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.45);}
.btn-ghost-pill:hover{background:#fff;color:var(--dark-1);border-color:#fff;}
.btn-pill[disabled],.btn-pill.is-disabled{opacity:.4;cursor:not-allowed;transform:none;}
.dock-cta{min-height:42px;padding:0 18px;font-size:14.5px;}

/* ============ 抽屉导航 ============ */
.drawer{
  width:min(88vw,336px);
  border-left:1px solid var(--line);
  border-top-left-radius:24px;
  border-bottom-left-radius:24px;
  background:var(--surface);
}
.drawer .offcanvas-header{
  padding:20px 20px 12px;
  border-bottom:1px solid var(--line-2);
  align-items:center;
}
.drawer .offcanvas-body{
  padding:14px 14px 20px;
  display:flex;
  flex-direction:column;
}
.drawer-brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink);font-size:15.5px;}
.drawer-link{
  display:flex;
  align-items:center;
  min-height:46px;
  padding:0 14px;
  border-radius:14px;
  color:var(--ink-2);
  font-size:15px;
  font-weight:500;
  transition:var(--t);
}
.drawer-link:hover{background:var(--brand-soft);color:var(--brand);}
.drawer-link.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600;}
.drawer-foot{margin-top:auto;padding-top:18px;}
.drawer-foot .btn-pill{width:100%;}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  padding:24px 0 0;
  font-size:14px;
  color:var(--ink-3);
}
.crumb a{color:var(--ink-3);}
.crumb a:hover{color:var(--brand);}
.crumb i{font-size:10px;color:var(--ink-3);}
.crumb .is-now{color:var(--brand);font-weight:600;}

/* ============ Hero ============ */
.lib-hero{
  position:relative;
  margin-top:22px;
  border-radius:var(--r-lg);
  overflow:hidden;
  background:var(--dark-1);
  isolation:isolate;
}
.hero-bg{
  position:absolute;
  inset:0;
  width:100%;height:100%;
  object-fit:cover;
  opacity:.34;
  z-index:0;
}
.hero-shade{
  position:absolute;
  inset:0;
  z-index:1;
  background:
    radial-gradient(120% 130% at 10% 12%,rgba(108,75,255,.55),transparent 58%),
    linear-gradient(180deg,rgba(20,15,43,.55),rgba(20,15,43,.92));
}
.hero-inner{position:relative;z-index:2;padding:clamp(30px,4.6vw,68px);}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 14px;
  border-radius:999px;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.18);
  color:rgba(255,255,255,.86);
  font-size:12px;
  letter-spacing:.06em;
  margin-bottom:20px;
}
.hero-eyebrow i{color:var(--cyan);}
.hero-title{
  color:#fff;
  font-size:clamp(30px,4.6vw,52px);
  line-height:1.2;
  font-weight:700;
  letter-spacing:-.01em;
}
.hero-title em{
  font-style:normal;
  background:linear-gradient(100deg,#12D6B4,#9C87FF);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  margin-top:18px;
  max-width:52ch;
  color:rgba(255,255,255,.76);
  font-size:clamp(15px,1.6vw,17px);
  line-height:1.85;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-tags span{
  font-size:12.5px;
  padding:6px 13px;
  border-radius:999px;
  color:rgba(255,255,255,.72);
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.14);
}
.hero-panel{
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.16);
  border-radius:22px;
  padding:24px;
  backdrop-filter:blur(6px);
}
.panel-head{
  color:rgba(255,255,255,.6);
  font-size:12.5px;
  letter-spacing:.08em;
  margin-bottom:18px;
}
.panel-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:12px;
}
.panel-cell{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  border-radius:14px;
  padding:14px 10px;
  text-align:center;
}
.panel-cell b{
  display:block;
  font-size:clamp(22px,2.6vw,28px);
  font-weight:700;
  color:var(--cyan);
  line-height:1.2;
}
.panel-cell span{display:block;margin-top:4px;font-size:12.5px;color:rgba(255,255,255,.66);}
.panel-note{
  margin-top:16px;
  padding-top:16px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:rgba(255,255,255,.6);
}

/* ============ 板块标题 ============ */
.sec-head{max-width:720px;margin-bottom:34px;}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.1em;
  font-weight:600;
  color:var(--brand);
  background:var(--brand-soft);
  padding:6px 13px;
  border-radius:999px;
  margin-bottom:16px;
}
.sec-head h2{font-size:clamp(24px,3vw,36px);line-height:1.3;}
.sec-sub{margin-top:14px;color:var(--ink-2);font-size:15.5px;}

/* ============ 筛选 chips ============ */
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  padding:16px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  margin-bottom:30px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:7px;
  min-height:40px;
  padding:0 17px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--surface-alt);
  color:var(--ink-2);
  font-size:14px;
  font-weight:500;
  cursor:pointer;
  transition:var(--t);
}
.chip:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);}
.chip.is-active{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
  box-shadow:0 10px 22px -12px rgba(108,75,255,.9);
}
.chip i{font-size:12px;}

/* ============ 资源卡片网格 ============ */
.lib-card{
  height:100%;
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:var(--t);
}
.lib-card:hover{
  transform:translateY(-4px);
  border-color:rgba(108,75,255,.3);
  box-shadow:var(--sh-2);
}
.lib-cover{
  position:relative;
  display:block;
  aspect-ratio:16/9;
  overflow:hidden;
  background:#EDEBF6;
}
.lib-cover img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .45s cubic-bezier(.2,.7,.3,1);
}
.lib-card:hover .lib-cover img{transform:scale(1.045);}
.badge-cat{
  position:absolute;
  left:12px;bottom:12px;
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.03em;
  background:rgba(255,255,255,.94);
  color:var(--brand);
  box-shadow:var(--sh-1);
}
.badge-cat.is-cyan{color:#0B8E79;background:var(--cyan-soft);}
.badge-cat.is-amber{color:#A96300;background:var(--amber-soft);}
.lib-body{
  display:flex;
  flex-direction:column;
  flex:1;
  padding:18px 20px 20px;
}
.lib-title{
  font-size:16.5px;
  font-weight:600;
  line-height:1.45;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.lib-title a{color:var(--ink);}
.lib-title a:hover{color:var(--brand);}
.lib-desc{
  margin-top:10px;
  color:var(--ink-2);
  font-size:14px;
  line-height:1.75;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.lib-meta{
  margin-top:auto;
  padding-top:16px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  font-size:12.5px;
  color:var(--ink-3);
  border-top:1px solid var(--line-2);
}
.lib-meta .meta-tag{display:inline-flex;align-items:center;gap:6px;}
.lib-meta .meta-tag i{color:var(--cyan);}

.grid-foot{
  margin-top:34px;
  padding:18px 22px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  font-size:14px;
  color:var(--ink-2);
}
.grid-foot b{color:var(--brand);font-weight:700;}
.lib-empty{
  padding:56px 24px;
  text-align:center;
  background:var(--surface);
  border:1px dashed var(--line);
  border-radius:var(--r-card);
  color:var(--ink-2);
}
.lib-empty i{font-size:30px;color:var(--ink-3);display:block;margin-bottom:14px;}
.lib-empty p{font-size:14.5px;}
.lib-empty a{display:inline-block;margin-top:14px;font-weight:600;}

/* ============ 更新节奏横向流程 ============ */
.flow-row{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
  counter-reset:flow;
}
.flow-item{
  position:relative;
  padding:24px 22px 26px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:var(--t);
}
.flow-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(108,75,255,.28);}
.flow-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;height:38px;
  border-radius:12px;
  font-size:14px;
  font-weight:700;
  color:#fff;
  background:linear-gradient(135deg,var(--brand),#8C6BFF);
  margin-bottom:16px;
}
.flow-item h3{font-size:17px;font-weight:600;}
.flow-item p{margin-top:10px;font-size:14px;color:var(--ink-2);line-height:1.8;}
.flow-track{height:5px;border-radius:999px;margin-top:18px;background:var(--line-2);overflow:hidden;}
.flow-track i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--cyan),var(--brand));}

/* ============ 提示条 ============ */
.tip-card{
  height:100%;
  padding:26px 24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:var(--t);
}
.tip-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.tip-icon{
  width:44px;height:44px;
  border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:17px;
  margin-bottom:16px;
}
.tip-card h3{font-size:17px;font-weight:600;}
.tip-card p{margin-top:10px;font-size:14.5px;color:var(--ink-2);}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  background:linear-gradient(135deg,var(--dark-1),var(--dark-2));
  isolation:isolate;
}
.cta-bg{
  position:absolute;inset:0;
  width:100%;height:100%;
  object-fit:cover;
  opacity:.12;
  z-index:0;
}
.cta-shade{
  position:absolute;inset:0;z-index:1;
  background:radial-gradient(90% 120% at 88% 10%,rgba(18,214,180,.22),transparent 60%);
}
.cta-inner{
  position:relative;z-index:2;
  padding:clamp(28px,4vw,56px);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:28px;
}
.cta-text h2{color:#fff;font-size:clamp(22px,2.6vw,32px);}
.cta-points{margin-top:20px;display:grid;gap:10px;}
.cta-points li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  color:rgba(255,255,255,.78);
  font-size:14.5px;
}
.cta-points i{color:var(--cyan);margin-top:6px;font-size:13px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 页脚 ============ */
.site-foot{
  margin-top:72px;
  padding:64px 0 0;
  background:linear-gradient(160deg,var(--dark-1),var(--dark-2));
  color:rgba(255,255,255,.72);
}
.foot-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:19px;
  font-weight:700;
}
.foot-desc{
  margin-top:16px;
  max-width:40ch;
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.62);
}
.foot-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.foot-chips span{
  font-size:12px;
  padding:5px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.13);
  color:rgba(255,255,255,.75);
}
.foot-col h4{
  color:#fff;
  font-size:15px;
  font-weight:600;
  margin-bottom:18px;
}
.foot-col ul li{margin-bottom:11px;}
.foot-col ul li a{color:rgba(255,255,255,.66);font-size:14px;}
.foot-col ul li a:hover{color:#fff;}
.foot-col ul li span{color:rgba(255,255,255,.6);font-size:14px;line-height:1.7;display:block;}
.foot-bottom{
  margin-top:52px;
  padding:22px 0;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:rgba(255,255,255,.5);
}
.foot-bottom a{color:rgba(255,255,255,.62);}
.foot-bottom a:hover{color:#fff;}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .flow-row{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991.98px){
  .dock{padding:8px 10px 8px 14px;gap:10px;justify-content:space-between;}
  .dock-menu{display:none;}
  .dock-cta{display:none;}
  .dock-toggle{display:inline-flex;}
  .hero-panel{margin-top:8px;}
}
@media (max-width:767.98px){
  .lib-hero{border-radius:22px;}
  .hero-title{font-size:29px;}
  .panel-grid{grid-template-columns:repeat(3,1fr);gap:8px;}
  .panel-cell b{font-size:21px;}
  .filter-bar{padding:12px;gap:8px;}
  .chip{min-height:38px;padding:0 14px;font-size:13.5px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn-pill{flex:1 1 100%;}
  .grid-foot{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575.98px){
  .flow-row{grid-template-columns:1fr;}
  .hero-inner{padding:26px 20px 30px;}
  .lib-body{padding:16px 16px 18px;}
  .section{padding:48px 0;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}

/* roulang page: category4 */
:root{
  --brand:#6C4BFF;--brand-h:#5A38F0;--brand-a:#4A2BD8;--brand-soft:#EFEBFF;
  --cyan:#12D6B4;--cyan-soft:#E4FBF6;--amber:#FF9F1C;--amber-soft:#FFF3E2;
  --dark-1:#140F2B;--dark-2:#241A4D;
  --bg:#F6F5FB;--bg-alt:#FBFAFF;--card:#FFFFFF;
  --t1:#1A1633;--t2:#5A5573;--t3:#8C87A6;
  --line:#E6E3F2;--line-2:#EFEDF7;
  --ok:#12B76A;--warn:#F04438;
  --r-card:18px;--r-lg:28px;--r-in:12px;--pill:999px;
  --sh1:0 1px 2px rgba(20,15,43,.06);
  --sh2:0 8px 24px -8px rgba(20,15,43,.14);
  --sh3:0 24px 60px -20px rgba(108,75,255,.35);
  --sec-y:96px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--t1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em}
p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(108,75,255,.35);outline-offset:2px;border-radius:6px}

.shell{width:100%;max-width:1320px;margin:0 auto;padding:0 28px}
.sec{padding:var(--sec-y) 0}
.sec-alt{background:var(--bg-alt)}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--pill);
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:700;letter-spacing:.04em;margin-bottom:16px}
.sec-title{font-size:clamp(24px,3vw,36px);line-height:1.3}
.sec-sub{margin-top:14px;color:var(--t2);font-size:16px}
.sec-alt .sec-title{color:var(--t1)}

/* ---------- Dock 导航 ---------- */
.dk-wrap{position:sticky;top:0;z-index:1030;padding:16px 0 0;pointer-events:none}
.dock{
  pointer-events:auto;width:min(1080px,calc(100% - 32px));margin:0 auto;
  display:flex;align-items:center;gap:16px;padding:10px 14px 10px 18px;
  background:rgba(255,255,255,.94);border:1px solid var(--line);border-radius:var(--pill);
  box-shadow:var(--sh2);backdrop-filter:blur(10px);
  transition:padding .25s ease,box-shadow .25s ease,background .25s ease;
}
.dock.is-shrink{padding:6px 12px 6px 14px;box-shadow:0 12px 34px -14px rgba(20,15,43,.24)}
.dock-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{width:34px;height:34px;border-radius:11px;display:grid;place-items:center;color:#fff;font-size:15px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--dark-2) 100%);box-shadow:var(--sh1);transition:width .25s,height .25s}
.dock.is-shrink .logo-mark{width:30px;height:30px;border-radius:10px;font-size:13px}
.logo-text{font-size:17px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
.dock-menu{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:nowrap}
.dock-menu a{display:inline-flex;align-items:center;height:40px;padding:0 14px;border-radius:var(--pill);
  font-size:14.5px;font-weight:600;color:var(--t2);transition:background .2s,color .2s}
.dock-menu a:hover{background:var(--brand-soft);color:var(--brand)}
.dock-menu a.is-active{background:var(--brand-soft);color:var(--brand)}
.dock-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.dock-toggle{display:none;width:42px;height:42px;border-radius:var(--pill);border:1px solid var(--line);
  background:#fff;color:var(--t1);cursor:pointer;transition:.2s}
.dock-toggle:hover{border-color:var(--brand);color:var(--brand)}

.btn-pill{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;
  border-radius:var(--pill);font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
  transition:transform .2s,background .2s,color .2s,box-shadow .2s}
.btn-primary-pill{background:var(--brand);color:#fff}
.btn-primary-pill:hover{background:var(--brand-h);color:#fff;transform:translateY(-1px);box-shadow:var(--sh3)}
.btn-primary-pill:active{background:var(--brand-a);transform:translateY(0)}
.btn-outline-pill{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-outline-pill:hover{background:var(--brand);color:#fff;transform:translateY(-1px);box-shadow:var(--sh3)}
.btn-ghost-pill{background:rgba(255,255,255,.06);color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost-pill:hover{background:rgba(255,255,255,.16);color:#fff}
.btn-sm-pill{height:38px;padding:0 18px;font-size:14px}
.dock-cta{height:40px;padding:0 18px;font-size:14px}

.offcanvas{border-radius:24px 0 0 24px;border:none}
.offcanvas-header{border-bottom:1px solid var(--line);padding:20px 22px}
.offcanvas-title{font-size:16px;font-weight:800}
.m-nav{padding:14px 12px 90px}
.m-nav a{display:flex;align-items:center;height:48px;padding:0 16px;border-radius:14px;font-weight:600;color:var(--t2)}
.m-nav a:hover,.m-nav a.is-active{background:var(--brand-soft);color:var(--brand)}
.m-nav-foot{position:fixed;bottom:0;left:0;right:0;padding:14px 22px 20px;background:#fff;border-top:1px solid var(--line)}

/* ---------- 面包屑 ---------- */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:22px 0 0;font-size:13.5px;color:var(--t3)}
.crumbs a:hover{color:var(--brand)}
.crumbs i{font-size:10px;color:var(--line)}
.crumbs .cur{color:var(--brand);font-weight:600}

/* ---------- Hero ---------- */
.qa-hero{position:relative;padding:48px 0 72px;overflow:hidden;
  background:
    radial-gradient(900px 420px at 88% -10%,rgba(108,75,255,.14),transparent 62%),
    radial-gradient(600px 340px at 4% 10%,rgba(18,214,180,.12),transparent 60%),
    var(--bg-alt)}
.qa-hero::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(var(--line-2) 1px,transparent 1px),linear-gradient(90deg,var(--line-2) 1px,transparent 1px);
  background-size:56px 56px;mask-image:linear-gradient(180deg,#000,transparent 72%)}
.qa-hero .shell{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:center}
.hero-tag{display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 15px;border-radius:var(--pill);
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh1);font-size:12.5px;font-weight:700;color:var(--brand);margin-bottom:20px}
.qa-hero h1{font-size:clamp(30px,4.6vw,52px);line-height:1.2;font-weight:700}
.qa-hero h1 em{font-style:normal;color:var(--brand)}
.hero-lead{margin-top:20px;max-width:620px;color:var(--t2);font-size:16.5px}
.hero-search{margin-top:28px;display:flex;gap:10px;max-width:620px}
.hero-search .field{position:relative;flex:1}
.hero-search .field i{position:absolute;left:18px;top:50%;transform:translateY(-50%);color:var(--t3);font-size:14px}
.hero-search input{width:100%;height:52px;padding:0 18px 0 44px;border-radius:var(--pill);
  border:1px solid var(--line);background:#fff;box-shadow:var(--sh1);transition:.2s}
.hero-search input::placeholder{color:var(--t3)}
.hero-search input:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(108,75,255,.14);outline:none}
.hero-search .btn-pill{height:52px;padding:0 26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.chip{display:inline-flex;align-items:center;gap:7px;height:34px;padding:0 14px;border-radius:var(--pill);
  background:#fff;border:1px solid var(--line);font-size:13.5px;color:var(--t2);cursor:pointer;transition:.2s}
.chip:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.hero-visual{position:relative}
.hero-shot{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh2);border:1px solid var(--line);background:#fff;
  transform:rotate(-2deg)}
.hero-shot img{width:100%;aspect-ratio:16/11;object-fit:cover}
.hero-stat{position:absolute;left:-16px;bottom:-20px;background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:14px 18px;box-shadow:var(--sh2);transform:rotate(2deg)}
.hero-stat b{display:block;font-size:22px;color:var(--brand);line-height:1.2}
.hero-stat span{font-size:12.5px;color:var(--t3)}
.hero-badgefloat{position:absolute;right:-10px;top:-14px;background:var(--dark-1);color:#fff;border-radius:14px;
  padding:10px 16px;font-size:12.5px;font-weight:600;box-shadow:var(--sh2);transform:rotate(2deg)}
.hero-badgefloat i{color:var(--cyan);margin-right:6px}

/* ---------- 快捷入口卡 ---------- */
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.quick-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;
  box-shadow:var(--sh1);transition:transform .22s,box-shadow .22s,border-color .22s;display:flex;flex-direction:column;height:100%}
.quick-card:hover{transform:translateY(-4px);border-color:rgba(108,75,255,.34);box-shadow:var(--sh2)}
.qc-ico{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;font-size:18px;margin-bottom:16px;
  background:var(--brand-soft);color:var(--brand)}
.qc-ico.cyan{background:var(--cyan-soft);color:#0BA98D}
.qc-ico.amber{background:var(--amber-soft);color:#D98200}
.quick-card h3{font-size:17.5px;font-weight:700}
.quick-card p{margin-top:10px;color:var(--t2);font-size:14.5px;line-height:1.8;flex:1}
.qc-link{margin-top:18px;display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:700;color:var(--brand)}
.qc-link i{transition:transform .2s}
.quick-card:hover .qc-link i{transform:translateX(4px)}

/* ---------- 问答区布局 ---------- */
.qa-layout{display:grid;grid-template-columns:272px minmax(0,1fr);gap:36px;align-items:start}
.qa-aside{position:sticky;top:96px}
.toc{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px 16px;box-shadow:var(--sh1)}
.toc h4{font-size:13px;letter-spacing:.06em;color:var(--t3);padding:0 10px 12px;font-weight:700}
.toc a{display:flex;align-items:center;gap:10px;min-height:44px;padding:0 12px;border-radius:12px;
  font-size:14.5px;font-weight:600;color:var(--t2);transition:.2s}
.toc a span.n{width:22px;height:22px;border-radius:7px;background:var(--line-2);color:var(--t3);font-size:11.5px;
  display:grid;place-items:center;font-weight:700;flex:0 0 auto}
.toc a:hover{background:var(--brand-soft);color:var(--brand)}
.toc a:hover span.n{background:var(--brand);color:#fff}
.toc a.is-on{background:var(--brand-soft);color:var(--brand)}
.toc a.is-on span.n{background:var(--brand);color:#fff}
.toc-note{margin-top:18px;padding:16px;border-radius:14px;background:var(--bg-alt);border:1px dashed var(--line);
  font-size:13px;color:var(--t2)}
.toc-note b{display:block;color:var(--t1);font-size:13.5px;margin-bottom:6px}

.qa-main .sec-title{font-size:clamp(22px,2.4vw,30px)}
.acc-group{padding-top:34px;scroll-margin-top:110px}
.acc-group:first-child{padding-top:0}
.acc-group-head{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.acc-group-head .gnum{width:32px;height:32px;border-radius:10px;display:grid;place-items:center;font-size:13px;font-weight:800;
  background:var(--dark-1);color:#fff}
.acc-group-head h3{font-size:19px;font-weight:700}
.acc-group-head .cnt{margin-left:auto;font-size:12.5px;color:var(--t3);background:var(--line-2);padding:4px 12px;border-radius:var(--pill)}

.acc-group .accordion-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden;transition:border-color .2s,box-shadow .2s}
.acc-group .accordion-item:hover{border-color:rgba(108,75,255,.3);box-shadow:var(--sh1)}
.acc-group .accordion-button{
  font-size:16px;font-weight:600;color:var(--t1);background:#fff;padding:18px 56px 18px 22px;
  border-radius:14px;position:relative;box-shadow:none!important}
.acc-group .accordion-button:not(.collapsed){color:var(--brand);background:#fff}
.acc-group .accordion-button::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  background:transparent;border-radius:0 3px 3px 0;transition:background .2s}
.acc-group .accordion-button:not(.collapsed)::before{background:var(--brand)}
.acc-group .accordion-button::after{width:9px;height:9px;border-right:2px solid var(--t3);border-bottom:2px solid var(--t3);
  background-image:none;transform:rotate(45deg);transition:transform .25s,border-color .25s;position:relative;top:-3px}
.acc-group .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);border-color:var(--brand);top:1px}
.acc-group .accordion-body{padding:0 22px 20px 22px;color:var(--t2);font-size:15px;line-height:1.9}
.acc-group .accordion-body b{color:var(--t1)}
.faq-empty{background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);padding:48px 24px;text-align:center}
.faq-empty i{font-size:30px;color:var(--t3);margin-bottom:14px;display:block}
.faq-empty p{color:var(--t2);font-size:14.5px}

/* ---------- 排查顺序 ---------- */
.step-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.step-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px 22px;box-shadow:var(--sh1);
  transition:transform .22s,box-shadow .22s}
.step-item:hover{transform:translateY(-4px);box-shadow:var(--sh2)}
.step-num{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:800;letter-spacing:.06em;color:var(--brand)}
.step-num i{width:24px;height:24px;border-radius:50%;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:11px}
.step-item h3{margin-top:14px;font-size:16.5px}
.step-item p{margin-top:8px;font-size:14px;color:var(--t2);line-height:1.8}
.step-line{height:3px;border-radius:3px;background:linear-gradient(90deg,var(--cyan),var(--brand));margin-top:18px;width:46%}

/* ---------- 提示对照 ---------- */
.hint-wrap{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.hint-shot{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh2);background:#fff}
.hint-shot img{width:100%;aspect-ratio:16/12;object-fit:cover}
.hint-list{display:grid;gap:14px}
.hint-row{display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:18px 20px;box-shadow:var(--sh1);transition:.2s}
.hint-row:hover{border-color:rgba(108,75,255,.34);box-shadow:var(--sh2);transform:translateY(-2px)}
.hint-code{flex:0 0 auto;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px;
  background:var(--dark-1);color:var(--cyan);padding:6px 12px;border-radius:10px;line-height:1.6}
.hint-row b{display:block;font-size:15px}
.hint-row p{font-size:13.8px;color:var(--t2);margin-top:4px;line-height:1.75}

/* ---------- 表单 ---------- */
.form-panel{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh2);padding:38px;
  display:grid;grid-template-columns:.85fr 1.15fr;gap:44px}
.form-intro h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3}
.form-intro p{margin-top:14px;color:var(--t2);font-size:15px}
.form-points{margin-top:22px;display:grid;gap:12px}
.form-points li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--t2)}
.form-points i{color:var(--cyan);margin-top:6px;font-size:13px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.fld{display:flex;flex-direction:column;gap:8px}
.fld.full{grid-column:1/-1}
.fld label{font-size:13.5px;font-weight:700;color:var(--t1)}
.fld label span{color:var(--warn);margin-left:2px}
.fld input,.fld select,.fld textarea{
  height:48px;border-radius:var(--r-in);border:1px solid var(--line);background:#fff;padding:0 14px;transition:.2s;width:100%}
.fld textarea{height:118px;padding:12px 14px;line-height:1.75;resize:vertical}
.fld input::placeholder,.fld textarea::placeholder{color:var(--t3)}
.fld input:focus,.fld select:focus,.fld textarea:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(108,75,255,.14);outline:none}
.form-foot{grid-column:1/-1;display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:4px}
.form-tip{font-size:13px;color:var(--t3)}
.form-ok{grid-column:1/-1;display:none;align-items:center;gap:10px;background:var(--cyan-soft);color:#0A8F79;
  border-radius:12px;padding:12px 16px;font-size:14px;font-weight:600}
.form-ok.show{display:flex}

/* ---------- CTA 带 ---------- */
.cta-band{position:relative;overflow:hidden;border-radius:var(--r-lg);background:linear-gradient(135deg,var(--dark-1),var(--dark-2));
  padding:56px 52px;color:#fff;display:grid;grid-template-columns:1.25fr .75fr;gap:40px;align-items:center}
.cta-band::before{content:"";position:absolute;inset:0;opacity:.14;
  background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat}
.cta-band>*{position:relative;z-index:2}
.cta-band h2{font-size:clamp(22px,2.8vw,32px);line-height:1.3;color:#fff}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.76);font-size:15px;max-width:560px}
.cta-points{margin-top:22px;display:grid;gap:10px}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:rgba(255,255,255,.9)}
.cta-points i{color:var(--cyan);margin-top:6px;font-size:13px}
.cta-btns{display:flex;flex-direction:column;gap:12px;justify-content:center}
.cta-btns .btn-pill{width:100%}

/* ---------- 页脚 ---------- */
.site-foot{margin-top:var(--sec-y);background:#fff;border-top:1px solid var(--line);padding:64px 0 0}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.foot-brand b{font-size:18px;font-weight:800}
.foot-desc{color:var(--t2);font-size:14.5px;line-height:1.85;max-width:400px}
.foot-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.foot-chips span{font-size:12.5px;color:var(--brand);background:var(--brand-soft);border-radius:var(--pill);padding:5px 13px}
.foot-col h4{font-size:14px;font-weight:800;margin-bottom:16px}
.foot-col ul{display:grid;gap:11px}
.foot-col a,.foot-col span{font-size:14px;color:var(--t2);transition:color .2s}
.foot-col a:hover{color:var(--brand)}
.foot-bottom{margin-top:52px;border-top:1px solid var(--line);padding:22px 0;display:flex;flex-wrap:wrap;
  gap:12px;justify-content:space-between;font-size:13px;color:var(--t3)}
.foot-bottom a:hover{color:var(--brand)}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  :root{--sec-y:80px}
  .quick-grid{grid-template-columns:repeat(2,1fr)}
  .dock-menu a{padding:0 11px;font-size:14px}
}
@media (max-width:991.98px){
  :root{--sec-y:64px}
  .dock-menu{display:none}
  .dock-toggle{display:grid;place-items:center}
  .dock-cta{display:none}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual{max-width:560px}
  .qa-layout{grid-template-columns:1fr;gap:28px}
  .qa-aside{position:static}
  .toc{display:flex;gap:10px;overflow-x:auto;padding:14px;-webkit-overflow-scrolling:touch}
  .toc h4,.toc-note{display:none}
  .toc a{flex:0 0 auto;background:var(--bg-alt);min-height:40px;padding:0 14px}
  .hint-wrap{grid-template-columns:1fr;gap:32px}
  .form-panel{grid-template-columns:1fr;gap:32px;padding:28px}
  .cta-band{grid-template-columns:1fr;padding:40px 28px}
  .cta-btns{flex-direction:row;flex-wrap:wrap}
  .cta-btns .btn-pill{width:auto}
}
@media (max-width:767.98px){
  .shell{padding:0 16px}
  .step-strip{grid-template-columns:1fr 1fr}
  .form-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;gap:8px}
}
@media (max-width:575.98px){
  .quick-grid,.step-strip{grid-template-columns:1fr}
  .hero-search{flex-direction:column}
  .hero-search .btn-pill{width:100%}
  .qa-hero{padding:28px 0 52px}
  .hero-shot{transform:none}
  .hero-badgefloat{right:0;top:-10px}
  .form-foot .btn-pill{width:100%}
  .cta-btns{flex-direction:column}
  .cta-btns .btn-pill{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}