/* roulang page: index */
:root{
  --brand-600:#6C3BFF;
  --brand-800:#4A22C9;
  --data-500:#14D8B8;
  --data-bg:#E6FBF7;
  --data-fg:#0A6B5C;
  --accent-500:#FF5FA2;
  --accent-400:#FF9A3C;
  --grad-brand:linear-gradient(120deg,#6C3BFF 0%,#FF5FA2 62%,#FF9A3C 100%);
  --shell:linear-gradient(180deg,#1B1233 0%,#2A1A4D 100%);
  --bg-page:#F6F4FB;
  --card:#FFFFFF;
  --soft:#F1EDFB;
  --t1:#1B1233;
  --t2:#5A5470;
  --t3:#8C86A0;
  --line:#ECE7F8;
  --sep:#F0EBFA;
  --ok:#10B981;
  --warn:#F59E0B;
  --err:#EF4444;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:20px;
  --r-xl:24px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(27,18,51,.06);
  --sh-2:0 10px 30px rgba(108,59,255,.10);
  --sh-3:0 18px 46px rgba(108,59,255,.18);
  --sidebar-w:248px;
  --font-sans:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,sans-serif;
  --font-mono:ui-monospace,'DIN Alternate','Roboto Mono',Menlo,Consolas,monospace;
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font-sans);font-size:16.5px;line-height:1.9;color:var(--t1);background:var(--bg-page);-webkit-font-smoothing:antialiased}
body.no-scroll{overflow:hidden}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--ease)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(20,216,184,.45);outline-offset:2px}
::selection{background:rgba(108,59,255,.18)}

/* 侧栏 App Shell */
.sidebar{position:fixed;left:0;top:0;height:100vh;width:var(--sidebar-w);background:var(--shell);color:#fff;z-index:60;display:flex;flex-direction:column;padding:16px 14px 18px;overflow-y:auto;transition:width var(--ease),transform .24s ease-out}
.sb-brand{display:flex;align-items:center;gap:12px;height:88px;padding:0 8px;flex:none}
.sb-mark{width:40px;height:40px;border-radius:12px;background:var(--grad-brand);display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-weight:700;font-size:15px;color:#fff;flex:none;box-shadow:0 6px 16px rgba(108,59,255,.4)}
.sb-texts{display:flex;flex-direction:column;min-width:0}
.sb-name{font-size:16px;font-weight:600;white-space:nowrap;letter-spacing:.2px;line-height:1.3}
.sb-name b{font-weight:800;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent}
.sb-sub{font-size:11px;line-height:1.5;color:rgba(255,255,255,.48);white-space:nowrap}
.sb-nav{display:flex;flex-direction:column;gap:4px}
.sb-link{position:relative;display:flex;align-items:center;gap:12px;height:44px;padding:0 12px;border-radius:12px;color:rgba(255,255,255,.74);font-size:14.5px;font-weight:500;transition:background-color var(--ease),color var(--ease);width:100%;text-align:left}
.sb-link:hover{background:rgba(255,255,255,.06);color:#fff}
.sb-link.is-active{background:rgba(255,255,255,.08);color:#fff}
.sb-link.is-active::before{content:"";position:absolute;left:0;top:10px;bottom:10px;width:4px;border-radius:0 4px 4px 0;background:var(--grad-brand)}
.sb-i{width:20px;height:20px;flex:none;opacity:.9}
.sb-label{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sb-divider{height:1px;background:rgba(255,255,255,.1);margin:16px 8px}
.sb-sub-nav{display:flex;flex-direction:column;gap:4px}
.sb-search{max-height:0;overflow:hidden;transition:max-height .22s ease-out}
.sb-search.open{max-height:120px}
.sb-search input{width:100%;height:40px;margin-top:8px;border-radius:10px;border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.07);color:#fff;padding:0 12px;font-size:14px;font-family:var(--font-sans)}
.sb-search input::placeholder{color:rgba(255,255,255,.42)}
.sb-search input:focus{outline:none;border-color:var(--data-500);box-shadow:0 0 0 3px rgba(20,216,184,.28)}
.sb-foot{margin-top:auto;padding:18px 8px 0;font-size:11.5px;line-height:1.7;color:rgba(255,255,255,.42)}
.sb-close{display:none;position:absolute;right:12px;top:14px;width:36px;height:36px;border-radius:10px;align-items:center;justify-content:center;color:#fff;background:rgba(255,255,255,.08)}
.sb-close:hover{background:rgba(255,255,255,.16)}

/* 移动端顶部栏 */
.topbar{display:none}
.scrim{position:fixed;inset:0;background:rgba(14,8,32,.55);opacity:0;pointer-events:none;transition:opacity .2s ease-out;z-index:55}
.scrim.show{opacity:1;pointer-events:auto}

/* 主区域 */
.main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 clamp(20px,4vw,48px)}
.main > .container{padding-top:clamp(40px,5vw,64px);padding-bottom:clamp(24px,3vw,40px)}

/* Hero */
.hero{position:relative;overflow:hidden;color:#fff;min-height:520px;display:flex;align-items:center;padding:clamp(72px,9vw,118px) 0 clamp(64px,8vw,100px);background:linear-gradient(135deg,rgba(27,18,51,.92) 0%,rgba(108,59,255,.70) 100%),url('/assets/images/backpic/back-1.webp') center/cover no-repeat;background-color:#2A1A4D}
.hero::before{content:"";position:absolute;right:-140px;bottom:-200px;width:520px;height:520px;border-radius:50%;border:1px solid rgba(255,255,255,.08);box-shadow:0 0 0 56px rgba(255,255,255,.04),0 0 0 124px rgba(255,255,255,.02);pointer-events:none}
.hero-inner{position:relative;z-index:2;width:100%}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.34);background:rgba(255,255,255,.10);font-size:12.5px;font-weight:600;letter-spacing:.4px}
.hero-eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--data-500);display:inline-block}
.hero h1{margin:20px 0 0;font-size:clamp(30px,4.4vw,52px);line-height:1.18;font-weight:800;letter-spacing:.4px;max-width:900px}
.hero-sub{margin-top:20px;font-size:18px;line-height:1.8;color:rgba(255,255,255,.82);max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-line{position:absolute;left:clamp(20px,4vw,48px);bottom:0;height:3px;width:40%;border-radius:3px;background:var(--grad-brand);z-index:3}

/* 按钮 */
.btn{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;white-space:nowrap;transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease),background-position var(--ease),color var(--ease),border-color var(--ease)}
.btn-primary{background:var(--grad-brand);background-size:150% 100%;background-position:0 0;color:#fff;box-shadow:0 8px 22px rgba(108,59,255,.28)}
.btn-primary:hover{transform:translateY(-2px);background-position:100% 0;box-shadow:0 14px 32px rgba(108,59,255,.36)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(108,59,255,.24)}
.btn-ghost{border:1px solid rgba(255,255,255,.6);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-line{border:1px solid var(--brand-600);color:var(--brand-600);background:#fff}
.btn-line:hover{background:var(--soft);transform:translateY(-2px)}
.btn-line:active{transform:translateY(0)}
.btn-white{background:#fff;color:var(--brand-800);box-shadow:0 8px 20px rgba(27,18,51,.18)}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(27,18,51,.24)}
.btn-text{height:auto;padding:0 4px;color:inherit;font-weight:600;position:relative}
.btn-text::after{content:"";position:absolute;left:4px;right:4px;bottom:-3px;height:1px;background:currentColor;opacity:.45;transition:opacity var(--ease)}
.btn-text:hover::after{opacity:1}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}

/* 区块骨架 */
.section{padding:0 0 clamp(48px,6vw,84px)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-bottom:26px}
.section-title{font-size:clamp(24px,3vw,32px);line-height:1.3;font-weight:700;letter-spacing:.2px}
.section-desc{margin-top:10px;font-size:14.5px;color:var(--t2);max-width:680px;line-height:1.8}
.section-more{font-size:14px;font-weight:600;color:var(--brand-600);position:relative;padding-bottom:2px}
.section-more::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--brand-600);opacity:.35;transition:opacity var(--ease)}
.section-more:hover::after{opacity:1}

/* 数据徽章条 */
.badges{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.badge-card{position:relative;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:20px 22px;box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.badge-card::after{content:"";position:absolute;right:0;top:0;width:64px;height:3px;border-radius:0 0 0 3px;background:var(--grad-brand)}
.badge-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(108,59,255,.28)}
.badge-num{font-family:var(--font-mono);font-size:30px;font-weight:700;line-height:1.1;color:var(--brand-800)}
.badge-num small{font-size:13px;font-weight:600;color:var(--t3);margin-left:4px;font-family:var(--font-sans)}
.badge-label{margin-top:8px;font-size:13px;color:var(--t2)}

/* 合集目录 */
.collection-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px}
.col-card{position:relative;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px 22px 20px;box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.col-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:rgba(108,59,255,.35)}
.col-num{font-family:var(--font-mono);font-size:40px;font-weight:700;line-height:1;color:var(--brand-600);opacity:.22}
.col-name{margin:12px 0 8px;font-size:18px;font-weight:600;line-height:1.5}
.col-desc{font-size:14px;line-height:1.8;color:var(--t2);min-height:52px}
.col-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:16px;padding-top:12px;border-top:1px solid var(--sep);font-size:12.5px;color:var(--t3);font-family:var(--font-mono)}
.col-meta span{font-family:var(--font-sans)}

/* 精选条目 */
.featured{display:grid;grid-template-columns:1.45fr 1fr;gap:22px}
.feat-main{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.feat-main:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:rgba(108,59,255,.35)}
.feat-main img{width:100%;aspect-ratio:16/10;object-fit:cover;border-bottom:1px solid var(--line)}
.feat-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.feat-title{font-size:21px;font-weight:600;line-height:1.5}
.feat-desc{font-size:14.5px;line-height:1.85;color:var(--t2)}
.feat-foot{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--t3);font-family:var(--font-mono)}
.feat-side{display:grid;gap:16px}
.mini-card{display:flex;gap:14px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:12px;box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(108,59,255,.35)}
.mini-card img{width:96px;height:72px;object-fit:cover;border-radius:var(--r-sm);border:1px solid var(--line);flex:none}
.mini-body{min-width:0}
.mini-title{font-size:15.5px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mini-meta{margin-top:6px;font-size:12.5px;color:var(--t3);font-family:var(--font-mono)}

/* 标签 */
.chip{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);background:var(--soft);color:var(--brand-800);font-size:12px;font-weight:600;white-space:nowrap}
.chip-data{background:var(--data-bg);color:var(--data-fg)}

/* 最新信息列表 */
.latest-list{display:flex;flex-direction:column}
.list-item{display:grid;grid-template-columns:160px 1fr;gap:18px;padding:18px 0;border-bottom:1px solid var(--sep);transition:background-color var(--ease)}
.list-item:last-child{border-bottom:0}
.li-cover{display:block;flex:none}
.li-cover img{width:160px;height:100px;object-fit:cover;border-radius:12px;border:1px solid var(--line)}
.li-body{min-width:0;display:flex;flex-direction:column;gap:8px}
.li-title{font-size:17px;font-weight:600;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.list-item:hover .li-title{color:var(--brand-600)}
.li-desc{font-size:14px;line-height:1.8;color:var(--t2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.li-meta{margin-top:auto;display:flex;align-items:center;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--t3)}
.li-meta time{font-family:var(--font-mono)}
.li-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line)}
.li-more{color:var(--brand-600);font-weight:600}
.empty-state{min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);padding:36px 20px}
.empty-state svg{width:44px;height:44px;color:var(--t3)}
.empty-state p{font-size:15px;color:var(--t2)}

/* 相关推荐 */
.rec-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.rec-card{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:12px;box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(108,59,255,.35)}
.rec-card img{width:72px;height:72px;object-fit:cover;border-radius:var(--r-sm);border:1px solid var(--line);flex:none}
.rec-body{min-width:0}
.rec-title{font-size:15px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-meta{margin-top:6px;font-size:12.5px;color:var(--t3)}

/* FAQ */
.faq{display:flex;flex-direction:column;gap:12px}
.faq-item{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease)}
.faq-item.open{border-color:rgba(108,59,255,.3);box-shadow:var(--sh-2)}
.faq-item.open::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--grad-brand)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;text-align:left;padding:18px 22px;font-size:16px;font-weight:600;line-height:1.6}
.faq-q svg{width:18px;height:18px;flex:none;color:var(--brand-600);transition:transform .22s ease-out}
.faq-item.open .faq-q svg{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease-out}
.faq-item.open .faq-a{max-height:360px}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--t2)}

/* CTA 条 */
.cta-bar{display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;background:var(--grad-brand);border-radius:var(--r-xl);padding:clamp(28px,4vw,44px);color:#fff;box-shadow:var(--sh-2)}
.cta-text h2{font-size:clamp(21px,2.4vw,27px);line-height:1.4;font-weight:700}
.cta-text p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.86);max-width:560px}
.cta-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.cta-bar .btn-text{color:#fff}

/* 页脚 */
.site-footer{margin-top:auto;background:var(--shell);color:rgba(255,255,255,.78);padding:clamp(44px,5vw,64px) 0 26px}
.f-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.f-logo{font-size:18px;font-weight:600;color:#fff;letter-spacing:.2px}
.f-logo b{font-weight:800;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent}
.f-desc{margin-top:14px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:340px}
.f-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.f-col ul{display:flex;flex-direction:column;gap:11px}
.f-link{font-size:14px;color:rgba(255,255,255,.7)}
a.f-link:hover{color:#fff}
.f-bottom{margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.55)}
.to-top{height:36px;padding:0 16px;border-radius:12px;background:rgba(255,255,255,.08);color:#fff;font-size:13px;font-weight:600;transition:background-color var(--ease),transform var(--ease)}
.to-top:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}

/* 轻提示 */
.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);background:#1B1233;color:#fff;font-size:14px;padding:10px 20px;border-radius:var(--r-pill);box-shadow:0 12px 30px rgba(27,18,51,.3);opacity:0;pointer-events:none;transition:opacity .2s ease-out,transform .2s ease-out;z-index:120}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* 骨架屏（加载占位） */
.skeleton{background:var(--soft);border-radius:var(--r-md);position:relative;overflow:hidden}
.skeleton::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.75),transparent);transform:translateX(-100%);animation:shimmer 1.4s infinite}
@keyframes shimmer{to{transform:translateX(100%)}}

/* 断点：1024-1279 侧栏收窄 */
@media (min-width:1024px) and (max-width:1279px){
  :root{--sidebar-w:84px}
  .sb-brand{justify-content:center;padding:0}
  .sb-texts,.sb-label,.sb-foot,.sb-sub{display:none}
  .sb-link{justify-content:center;padding:0}
  .sb-search{display:none}
}

/* 断点：<1024 顶部栏 + 抽屉 */
@media (max-width:1023px){
  .sidebar{transform:translateX(-100%);width:min(78vw,300px);padding-top:20px;box-shadow:0 0 44px rgba(0,0,0,.4)}
  .sidebar.is-open{transform:translateX(0)}
  .sb-close{display:flex}
  .main{margin-left:0;padding-top:56px}
  .topbar{position:fixed;top:0;left:0;right:0;height:56px;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 14px;background:var(--shell);color:#fff;z-index:70;box-shadow:0 2px 14px rgba(27,18,51,.22)}
  .tb-logo{font-size:16px;font-weight:600;white-space:nowrap}
  .tb-logo b{font-weight:800;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent}
  .tb-btn{width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.08);color:#fff}
  .tb-btn:hover{background:rgba(255,255,255,.16)}
  .tb-btn svg{width:20px;height:20px}
}

/* 断点：<768 */
@media (max-width:767px){
  body{font-size:16px}
  .featured{grid-template-columns:1fr}
  .feat-main img{aspect-ratio:16/9}
  .badges{grid-template-columns:repeat(2,1fr)}
  .rec-list{display:flex;overflow-x:auto;gap:14px;scroll-snap-type:x mandatory;padding-bottom:10px}
  .rec-card{min-width:260px;scroll-snap-align:start}
  .list-item{grid-template-columns:1fr;gap:12px}
  .li-cover img{width:100%;height:180px}
  .cta-bar{flex-direction:column;align-items:flex-start}
}

/* 断点：<480 */
@media (max-width:479px){
  .hero{min-height:auto;padding-top:56px;padding-bottom:52px}
  .hero h1{font-size:28px}
  .hero-sub{font-size:16px;max-width:100%}
  .hero-actions{flex-direction:column;align-items:stretch;width:100%}
  .hero-actions .btn{width:100%}
  .badges{grid-template-columns:1fr}
  .f-grid{grid-template-columns:1fr}
  .collection-grid{grid-template-columns:1fr}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}

/* roulang page: article */
/* ============ 设计变量 ============ */
:root{
  --brand-600:#6C3BFF;
  --brand-800:#4A22C9;
  --data-500:#14D8B8;
  --accent-500:#FF5FA2;
  --accent-400:#FF9A3C;
  --grad:linear-gradient(120deg,#6C3BFF 0%,#FF5FA2 62%,#FF9A3C 100%);
  --shell:linear-gradient(180deg,#1B1233 0%,#2A1A4D 100%);
  --bg-page:#F6F4FB;
  --card:#FFFFFF;
  --soft:#F1EDFB;
  --t1:#1B1233;
  --t2:#5A5470;
  --t3:#8C86A0;
  --line:#ECE7F8;
  --divider:#F0EBFA;
  --r-s:10px;
  --r-m:16px;
  --r-l:20px;
  --r-xl:24px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(27,18,51,.06);
  --sh-2:0 10px 30px rgba(108,59,255,.10);
  --sh-3:0 18px 46px rgba(108,59,255,.18);
  --sb:248px;
  --ease:180ms ease-out;
  --font-cn:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,sans-serif;
  --font-num:ui-monospace,'DIN Alternate','Roboto Mono',monospace;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--t1);
  background:var(--bg-page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus{outline:none}
:focus-visible{outline:3px solid rgba(20,216,184,.45);outline-offset:2px;border-radius:6px}
body.locked{overflow:hidden}

/* ============ 布局骨架 ============ */
.app{min-height:100vh}
.main{margin-left:var(--sb);padding-top:clamp(26px,4vw,44px);padding-bottom:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:clamp(20px,4vw,48px);padding-right:clamp(20px,4vw,48px)}
.section{margin-bottom:clamp(44px,5.5vw,76px)}

/* ============ 侧栏 App Shell ============ */
.sb{
  position:fixed;top:0;left:0;width:var(--sb);height:100vh;z-index:60;
  background:var(--shell);
  display:flex;flex-direction:column;
  padding:0 14px 18px;
  box-shadow:0 0 0 1px rgba(255,255,255,.04);
  overflow-y:auto;
  overscroll-behavior:contain;
}
.sb-brand{
  display:flex;align-items:center;gap:10px;height:88px;flex:0 0 auto;
  border-bottom:1px solid rgba(255,255,255,.08);
  margin-bottom:14px;
}
.sb-badge{
  flex:0 0 auto;width:38px;height:38px;border-radius:12px;
  background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-weight:800;font-size:14px;letter-spacing:.4px;
  box-shadow:0 8px 20px rgba(108,59,255,.38);
}
.sb-text{display:flex;flex-direction:column;gap:2px;min-width:0}
.sb-name{font-size:16px;font-weight:600;color:#fff;white-space:nowrap;letter-spacing:.2px}
.sb-name b{font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.sb-sub{font-size:11px;line-height:1.4;color:rgba(255,255,255,.5);white-space:nowrap}
.sb-sec-label{
  font-size:11px;letter-spacing:.14em;color:rgba(255,255,255,.38);
  padding:14px 12px 8px;text-transform:uppercase;
}
.sb-nav{display:flex;flex-direction:column;gap:4px}
.sb-link{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;border-radius:12px;
  color:rgba(255,255,255,.72);font-size:14.5px;
  transition:background-color var(--ease),color var(--ease),transform var(--ease);
}
.sb-link:hover{background:rgba(255,255,255,.06);color:#fff}
.sb-link.is-active{background:rgba(255,255,255,.08);color:#fff}
.sb-link.is-active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:4px;
  border-radius:0 4px 4px 0;background:var(--grad);
}
.sb-i{width:20px;height:20px;flex:0 0 auto}
.sb-divider{height:1px;background:rgba(255,255,255,.10);margin:18px 6px}
.sb-tools{display:flex;flex-direction:column;gap:4px}
.sb-tool{
  display:flex;align-items:center;gap:12px;height:40px;padding:0 12px;
  border-radius:12px;color:rgba(255,255,255,.62);font-size:13.5px;
  width:100%;text-align:left;
  transition:background-color var(--ease),color var(--ease);
}
.sb-tool:hover{background:rgba(255,255,255,.06);color:#fff}
.sb-foot{
  margin-top:auto;padding:18px 12px 4px;font-size:11.5px;line-height:1.7;
  color:rgba(255,255,255,.38);
}

/* ============ 顶部栏 + 抽屉（移动端） ============ */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;z-index:70;
  background:var(--shell);align-items:center;justify-content:space-between;
  padding:0 14px;box-shadow:0 6px 18px rgba(27,18,51,.22);
}
.tb-btn{
  width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.86);transition:background-color var(--ease);
}
.tb-btn:hover{background:rgba(255,255,255,.10)}
.tb-logo{display:flex;align-items:center;gap:8px;color:#fff;font-size:15px;font-weight:600;white-space:nowrap}
.tb-logo b{font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.tb-badge{
  width:28px;height:28px;border-radius:9px;background:var(--grad);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:11px;font-weight:800;color:#fff;
}
.mask{
  position:fixed;inset:0;background:rgba(14,8,32,.55);z-index:80;
  opacity:0;pointer-events:none;transition:opacity var(--ease);
}
.mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;bottom:0;left:0;width:min(78vw,300px);z-index:90;
  background:var(--shell);padding:16px 14px 24px;overflow-y:auto;
  transform:translateX(-102%);transition:transform 220ms ease-out;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.drawer-close{
  width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.86);background:rgba(255,255,255,.08);
}
.drawer-close:hover{background:rgba(255,255,255,.16)}
.drawer .sb-link{height:48px;font-size:15px}
.drawer .sb-link::after{
  content:"";margin-left:auto;width:7px;height:7px;border-right:1.6px solid rgba(255,255,255,.4);
  border-top:1.6px solid rgba(255,255,255,.4);transform:rotate(45deg);
}
.drawer .sb-link.is-active::after{border-color:rgba(255,255,255,.85)}

/* ============ 按钮 ============ */
.btn{
  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;white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease),background-position var(--ease),border-color var(--ease),color var(--ease);
}
.btn-primary{
  background-image:var(--grad);background-size:180% 100%;background-position:0 0;
  color:#fff;box-shadow:0 8px 22px rgba(108,59,255,.30);
}
.btn-primary:hover{transform:translateY(-2px);background-position:100% 0;box-shadow:var(--sh-3)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-2)}
.btn-line{
  background:#fff;color:var(--brand-800);border:1px solid var(--line);box-shadow:var(--sh-1);
}
.btn-line:hover{transform:translateY(-2px);border-color:rgba(108,59,255,.35);box-shadow:var(--sh-2)}
.btn-line:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.55)}
.btn-ghost:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.4;pointer-events:none}
.link-grad{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-800);
  padding-bottom:2px;background-image:var(--grad);background-repeat:no-repeat;
  background-size:0% 1.5px;background-position:0 100%;
  transition:background-size var(--ease),color var(--ease);
}
.link-grad:hover{background-size:100% 1.5px;color:var(--brand-600)}

/* ============ 标签 / 徽章 ============ */
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;background:var(--soft);color:var(--brand-800);white-space:nowrap;
}
.tag-cyan{background:#E6FBF7;color:#0A6B5C}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:12px;
  font-size:12px;font-weight:600;background:#fff;border:1px solid var(--line);color:var(--t2);
}
.badge-num{font-family:var(--font-num);font-weight:700;color:var(--brand-600)}
.badge-cyan{background:#E6FBF7;color:#0A6B5C;border-color:transparent}

/* ============ 面包屑 ============ */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--t3);margin-bottom:12px;
}
.crumbs a{color:var(--t3);transition:color var(--ease)}
.crumbs a:hover{color:var(--brand-600)}
.crumbs .sep{color:#C9C2DE}
.crumbs .cur{color:var(--t1);font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:52ch}

/* ============ 文章头 ============ */
.art-head{max-width:860px;margin-bottom:clamp(22px,3vw,32px)}
.art-h1{
  font-size:clamp(26px,3.4vw,40px);line-height:1.25;font-weight:800;letter-spacing:-.2px;
  color:var(--t1);margin-bottom:16px;
}
.art-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--t3);
}
.art-meta .dot{width:3px;height:3px;border-radius:50%;background:#D6CFEB}
.art-meta .m-num{font-family:var(--font-num);color:var(--t2)}

/* ============ 正文阅读区 ============ */
.prose-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-xl);
  box-shadow:var(--sh-1);
  padding:clamp(24px,4vw,56px);
}
.prose{max-width:760px;font-size:16.5px;line-height:1.9;color:#2A2340}
.prose>*:first-child{margin-top:0}
.prose p{margin:0 0 .95em}
.prose h2{
  position:relative;font-size:20px;font-weight:700;line-height:1.5;color:var(--t1);
  margin:40px 0 18px;padding-left:14px;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:3px;
  border-radius:3px;background:var(--grad);
}
.prose h3{font-size:17px;font-weight:700;color:var(--t1);margin:32px 0 14px}
.prose h4{font-size:16px;font-weight:700;color:var(--t1);margin:24px 0 12px}
.prose ul,.prose ol{margin:0 0 1em;padding-left:1.35em}
.prose ul li{list-style:disc;margin:.4em 0}
.prose ol li{list-style:decimal;margin:.4em 0}
.prose blockquote{
  position:relative;margin:1.3em 0;padding:16px 22px 16px 24px;
  background:var(--soft);border-radius:0 var(--r-s) var(--r-s) 0;color:var(--t2);
}
.prose blockquote::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;border-radius:3px;background:var(--grad);
}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{border-radius:12px;margin:1.3em auto;border:1px solid var(--line)}
.prose figure{margin:1.4em 0}
.prose figcaption{font-size:13px;color:var(--t3);text-align:center;margin-top:10px}
.prose table{
  width:100%;border-collapse:separate;border-spacing:0;margin:1.3em 0;
  font-size:15px;border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.prose th,.prose td{padding:10px 14px;text-align:left;border-bottom:1px solid var(--divider)}
.prose th{background:var(--soft);color:var(--t1);font-weight:600}
.prose tbody tr:nth-child(even){background:#FBFAFE}
.prose tbody tr:last-child td{border-bottom:0}
.prose a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
.prose a:hover{color:var(--brand-800)}
.prose code{
  font-family:var(--font-num);font-size:14px;background:var(--soft);
  padding:2px 6px;border-radius:6px;color:var(--brand-800);
}
.prose hr{border:0;height:1px;background:var(--divider);margin:2em 0}
.prose strong{font-weight:700;color:var(--t1)}

/* ============ 空态 ============ */
.empty{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
  min-height:280px;text-align:center;padding:32px 20px;
}
.empty-icon{
  width:64px;height:64px;border-radius:20px;background:var(--soft);
  display:flex;align-items:center;justify-content:center;color:var(--brand-600);
}
.empty-title{font-size:18px;font-weight:700;color:var(--t1)}
.empty-desc{font-size:14px;color:var(--t2);line-height:1.85;max-width:420px}

/* ============ 文末引导条 ============ */
.end-cta{
  position:relative;overflow:hidden;border-radius:var(--r-m);
  background:linear-gradient(120deg,#4A22C9 0%,#6C3BFF 100%);
  border:1px solid var(--line);
  padding:22px 24px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
}
.end-cta::after{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.14;mix-blend-mode:luminosity;pointer-events:none;
}
.end-cta>*{position:relative;z-index:1}
.end-cta p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.94);max-width:620px}
.end-cta .btn-soft{
  background:#fff;color:var(--brand-800);border:1px solid transparent;
}
.end-cta .btn-soft:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(14,8,32,.28)}

/* ============ 区块标题 ============ */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:clamp(18px,2.4vw,28px)}
.sec-head h2{font-size:clamp(20px,2.4vw,26px);font-weight:700;line-height:1.35;color:var(--t1)}
.sec-head .sec-sub{font-size:13.5px;color:var(--t3);margin-top:6px}

/* ============ 推荐小卡 ============ */
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.rec-card{
  display:flex;align-items:center;gap:14px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-m);
  box-shadow:var(--sh-1);padding:14px;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(108,59,255,.35)}
.rec-img{width:96px;height:72px;flex:0 0 auto;border-radius:12px;object-fit:cover;border:1px solid var(--line)}
.rec-body{min-width:0}
.rec-title{
  font-size:15px;font-weight:600;line-height:1.5;color:var(--t1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rec-meta{font-size:12.5px;color:var(--t3);margin-top:6px}

/* ============ 返回入口 ============ */
.back-row{display:flex;justify-content:center;padding:36px 0 48px}
.back-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;color:var(--t2);
  transition:color var(--ease),transform var(--ease);
}
.back-link:hover{color:var(--brand-600);transform:translateX(-3px)}
.back-link svg{width:18px;height:18px}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--shell);color:rgba(255,255,255,.78);
  padding:clamp(40px,5vw,64px) 0 24px;margin-top:8px;
}
.f-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.f-logo{
  font-size:18px;font-weight:600;color:#fff;margin-bottom:14px;white-space:nowrap;letter-spacing:.2px;
}
.f-logo b{font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.f-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:320px}
.f-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.f-col ul{display:flex;flex-direction:column;gap:11px}
.f-link{
  font-size:14px;color:rgba(255,255,255,.68);
  transition:color var(--ease),transform var(--ease);display:inline-block;
}
a.f-link:hover{color:#fff;transform:translateX(2px)}
span.f-link{cursor:default;color:rgba(255,255,255,.55)}
.f-bottom{
  margin-top:34px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}
.to-top{
  height:38px;padding:0 16px;border-radius:12px;font-size:13px;font-weight:600;
  background:rgba(255,255,255,.10);color:#fff;border:1px solid rgba(255,255,255,.16);
  transition:background-color var(--ease),transform var(--ease);
}
.to-top:hover{background:rgba(255,255,255,.20);transform:translateY(-2px)}

/* ============ 加载骨架 ============ */
.skeleton{
  background:#F1EDFB;border-radius:var(--r-s);position:relative;overflow:hidden;
}
.skeleton::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.75),transparent);
  transform:translateX(-100%);animation:shimmer 1.4s infinite;
}
@keyframes shimmer{to{transform:translateX(100%)}}

/* ============ 断点 ============ */
@media (max-width:1279px) and (min-width:1024px){
  :root{--sb:84px}
  .sb-text,.sb-label,.sb-sec-label,.sb-foot,.sb-tool span{display:none}
  .sb{padding:0 10px 18px;align-items:center}
  .sb-brand{justify-content:center;width:100%}
  .sb-link,.sb-tool{justify-content:center;width:100%}
  .f-grid{grid-template-columns:1.4fr 1fr 1fr;row-gap:28px}
}
@media (max-width:1023px){
  .sb{display:none}
  .topbar{display:flex}
  .main{margin-left:0;padding-top:calc(56px + 22px)}
  .f-grid{grid-template-columns:1fr 1fr;row-gap:28px}
  .rec-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  .rec-grid{grid-template-columns:1fr}
  .art-meta{font-size:12.5px}
  .end-cta{padding:20px}
  .end-cta .btn{width:100%}
  .f-grid{grid-template-columns:1fr}
  .f-desc{max-width:none}
}
@media (max-width:520px){
  .art-h1{font-size:25px}
  .prose-card{padding:20px}
  .prose{font-size:16px}
  .crumbs .cur{max-width:100%;white-space:normal}
  .rec-card{padding:12px}
  .rec-img{width:84px;height:64px}
  .f-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --brand-600:#6C3BFF;
  --brand-800:#4A22C9;
  --data-500:#14D8B8;
  --accent-500:#FF5FA2;
  --accent-400:#FF9A3C;
  --grad-brand:linear-gradient(120deg,#6C3BFF 0%,#FF5FA2 62%,#FF9A3C 100%);
  --shell:linear-gradient(180deg,#1B1233 0%,#2A1A4D 100%);
  --bg-page:#F6F4FB;
  --card:#FFFFFF;
  --soft:#F1EDFB;
  --t1:#1B1233;
  --t2:#5A5470;
  --t3:#8C86A0;
  --line:#ECE7F8;
  --split:#F0EBFA;
  --r-s:10px;
  --r-m:16px;
  --r-l:20px;
  --r-xl:24px;
  --sh-1:0 2px 8px rgba(27,18,51,.06);
  --sh-2:0 10px 30px rgba(108,59,255,.10);
  --sh-3:0 18px 46px rgba(108,59,255,.18);
  --sb-w:248px;
  --font:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,sans-serif;
  --mono:ui-monospace,'DIN Alternate','Roboto Mono',monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--t1);
  background:var(--bg-page);
  -webkit-font-smoothing:antialiased;
}
body.is-locked{overflow:hidden;}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand-800);text-decoration:none;transition:color 180ms ease-out,background-color 180ms ease-out,box-shadow 180ms ease-out,transform 180ms ease-out;}
button{font:inherit;color:inherit;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:3px solid rgba(20,216,184,.45);outline-offset:2px;border-radius:6px;}
a:focus,button:focus{outline:none;}

/* ============ 左侧 App Shell ============ */
.sb{
  position:fixed;top:0;left:0;width:var(--sb-w);height:100vh;
  background:var(--shell);
  display:flex;flex-direction:column;
  padding:0 16px;
  z-index:60;
  border-right:1px solid rgba(255,255,255,.06);
}
.sb-logo{
  height:88px;display:flex;align-items:center;gap:10px;
  padding:0 6px;border-bottom:1px solid rgba(255,255,255,.08);
  flex:none;
}
.logo-mark{
  width:38px;height:38px;flex:none;border-radius:12px;
  background:var(--grad-brand);
  display:grid;place-items:center;
  font-family:var(--mono);font-weight:800;font-size:13px;letter-spacing:.4px;color:#fff;
}
.logo-text{display:flex;flex-direction:column;line-height:1.25;white-space:nowrap;}
.logo-text b{
  font-size:16px;font-weight:800;
  background:var(--grad-brand);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.logo-text .logo-main{font-size:15.5px;font-weight:600;color:#fff;letter-spacing:.2px;}
.logo-sub{font-size:11px;color:rgba(255,255,255,.48);letter-spacing:.3px;margin-top:2px;}
.sb-nav{display:flex;flex-direction:column;gap:6px;padding:18px 0;}
.sb-link{
  position:relative;
  display:flex;align-items:center;gap:12px;
  width:100%;
  height:44px;padding:0 12px;
  border:0;background:transparent;text-align:left;
  border-radius:12px;
  color:rgba(255,255,255,.72);
  font-size:14.5px;font-weight:500;
  transition:background-color 180ms ease-out,color 180ms ease-out;
}
.sb-link:hover{background:rgba(255,255,255,.06);color:#fff;}
.sb-link.is-active{background:rgba(255,255,255,.08);color:#fff;}
.sb-link.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:4px;
  border-radius:0 4px 4px 0;background:var(--grad-brand);
}
.sb-i{width:20px;height:20px;flex:none;}
.sb-sep{height:1px;background:rgba(255,255,255,.10);margin:6px 4px;}
.sb-extra{display:flex;flex-direction:column;gap:6px;padding:8px 0 0;}
.sb-foot{
  margin-top:auto;padding:14px 8px 20px;
  font-size:11.5px;line-height:1.7;color:rgba(255,255,255,.45);
  border-top:1px solid rgba(255,255,255,.08);
}

/* ============ 移动端顶栏与抽屉 ============ */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;
  align-items:center;justify-content:space-between;gap:10px;
  padding:0 14px;
  background:rgba(27,18,51,.97);
  border-bottom:1px solid rgba(255,255,255,.08);
  z-index:70;
}
.tb-btn{
  width:36px;height:36px;flex:none;
  display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);
  border-radius:10px;color:#fff;
  transition:background-color 180ms ease-out;
}
.tb-btn:hover{background:rgba(255,255,255,.14);}
.tb-logo{display:flex;align-items:center;gap:8px;color:#fff;font-size:15px;font-weight:600;white-space:nowrap;}
.tb-logo b{
  font-weight:800;
  background:var(--grad-brand);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:min(78vw,300px);
  background:var(--shell);
  padding:16px 16px 24px;
  display:flex;flex-direction:column;
  overflow-y:auto;
  transform:translateX(-102%);
  transition:transform 220ms ease-out;
  z-index:90;
}
.drawer.is-open{transform:translateX(0);}
.dw-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:4px 0 14px;border-bottom:1px solid rgba(255,255,255,.10);}
.dw-close{
  width:36px;height:36px;flex:none;border-radius:10px;
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);
  color:#fff;font-size:20px;line-height:1;display:grid;place-items:center;
}
.dw-close:hover{background:rgba(255,255,255,.14);}
.dw-nav{display:flex;flex-direction:column;gap:6px;padding:16px 0;}
.dw-link{
  display:flex;align-items:center;gap:12px;
  height:48px;padding:0 14px;border-radius:12px;
  color:rgba(255,255,255,.78);font-size:15px;font-weight:500;
  background:transparent;
}
.dw-link:hover{background:rgba(255,255,255,.06);color:#fff;}
.dw-link.is-active{background:rgba(255,255,255,.08);color:#fff;}
.dw-link .dw-i{width:20px;height:20px;flex:none;}
.dw-link .dw-arrow{width:16px;height:16px;margin-left:auto;opacity:.5;}
.dw-foot{margin-top:auto;font-size:12px;color:rgba(255,255,255,.45);line-height:1.7;padding-top:16px;border-top:1px solid rgba(255,255,255,.08);}
.mask{
  position:fixed;inset:0;background:rgba(14,8,32,.55);
  opacity:0;visibility:hidden;transition:opacity 220ms ease-out,visibility 220ms ease-out;
  z-index:80;
}
.mask.is-open{opacity:1;visibility:visible;}

/* ============ 主区域 ============ */
.main{margin-left:var(--sb-w);min-height:100vh;padding-bottom:8px;}
.container{max-width:1200px;margin:0 auto;padding:0 clamp(20px,4vw,48px);}

.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--t3);
  padding:24px 0 0;
}
.crumb a{color:var(--t2);}
.crumb a:hover{color:var(--brand-800);}
.crumb .crumb-now{color:var(--t1);font-weight:600;}

/* 页面头 */
.page-head{
  position:relative;overflow:hidden;
  margin:16px 0 clamp(32px,4vw,52px);
  padding:clamp(28px,4vw,54px);
  border-radius:var(--r-xl);
  color:#fff;
  background-image:linear-gradient(135deg,rgba(27,18,51,.92) 0%,rgba(108,59,255,.70) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  box-shadow:var(--sh-2);
}
.page-head::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;width:40%;
  background:var(--grad-brand);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.6px;
  color:rgba(255,255,255,.86);
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.18);
  padding:5px 12px;border-radius:999px;
  text-transform:none;
}
.page-head h1{
  margin-top:18px;
  font-size:clamp(28px,3.8vw,44px);
  line-height:1.22;font-weight:800;
  max-width:820px;
}
.ph-desc{
  margin-top:16px;max-width:660px;
  font-size:16px;line-height:1.9;
  color:rgba(255,255,255,.84);
}
.ph-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.badges{
  display:flex;flex-wrap:wrap;gap:12px;
  margin-top:32px;
}
.badge{
  display:flex;align-items:center;gap:10px;
  min-height:32px;padding:6px 16px;
  border-radius:12px;
  background:#fff;border:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.badge .b-num{font-family:var(--mono);font-weight:700;font-size:15px;color:var(--brand-800);}
.badge .b-lb{font-size:12.5px;color:var(--t2);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;
  border-radius:999px;border:1px solid transparent;
  font-size:14.5px;font-weight:600;
  transition:transform 180ms ease-out,box-shadow 180ms ease-out,background-color 180ms ease-out,border-color 180ms ease-out,color 180ms ease-out;
}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 8px 22px rgba(108,59,255,.30);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-3);color:#fff;}
.btn-ghost{background:#fff;color:var(--brand-800);border-color:var(--line);}
.btn-ghost:hover{transform:translateY(-2px);border-color:rgba(108,59,255,.35);box-shadow:var(--sh-2);}
.btn-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-line:hover{background:rgba(255,255,255,.12);transform:translateY(-2px);}
.btn:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.4;pointer-events:none;}

.link-more{
  font-size:13.5px;font-weight:600;color:var(--brand-800);
  background-image:var(--grad-brand);
  background-repeat:no-repeat;background-position:0 100%;background-size:0 1px;
  padding-bottom:2px;
  transition:background-size 180ms ease-out,color 180ms ease-out;
}
.link-more:hover{background-size:100% 1px;color:var(--brand-600);}

/* 布局：主列 + 数据侧栏 */
.layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 288px;
  gap:28px;
  align-items:start;
}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:18px;flex-wrap:wrap;
  margin-bottom:22px;
}
.section-head h2{
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.35;font-weight:700;
}
.section-head .sh-note{font-size:13.5px;color:var(--t3);}
.search{
  display:flex;align-items:center;gap:8px;
  height:44px;padding:0 14px;min-width:236px;
  background:#fff;border:1px solid var(--line);border-radius:12px;
  box-shadow:var(--sh-1);
  transition:border-color 180ms ease-out,box-shadow 180ms ease-out;
}
.search:focus-within{border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(20,216,184,.35);}
.search svg{width:18px;height:18px;flex:none;color:var(--t3);}
.search input{
  border:0;outline:0;background:transparent;
  font:inherit;font-size:14.5px;color:var(--t1);width:100%;
}
.search input::placeholder{color:var(--t3);}

.cards{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px;
}
.card{
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform 180ms ease-out,box-shadow 180ms ease-out,border-color 180ms ease-out;
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(108,59,255,.35);
  box-shadow:var(--sh-3);
}
.card-media{
  position:relative;
  aspect-ratio:16/10;
  background:linear-gradient(120deg,rgba(108,59,255,.12),rgba(255,95,162,.12));
  overflow:hidden;
}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease-out;}
.card:hover .card-media img{transform:scale(1.03);}
.card-no{
  position:absolute;left:12px;bottom:12px;
  font-family:var(--mono);font-size:12.5px;font-weight:700;
  padding:4px 10px;border-radius:999px;
  background:#E6FBF7;color:#0A6B5C;
  border:1px solid rgba(10,107,92,.12);
}
.card-body{
  display:flex;flex-direction:column;gap:10px;
  padding:20px 22px 22px;
  flex:1;
}
.tag{
  display:inline-flex;align-items:center;align-self:flex-start;
  height:26px;padding:0 12px;
  border-radius:999px;
  background:var(--soft);color:var(--brand-800);
  font-size:12px;font-weight:600;
}
.card h3{font-size:18px;font-weight:600;line-height:1.5;}
.card .c-desc{
  font-size:14.5px;color:var(--t2);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  margin-top:auto;
  padding-top:14px;border-top:1px solid var(--split);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--t3);
}
.card-meta .m-time{font-family:var(--mono);}

.grad-divider{
  grid-column:1/-1;
  height:2px;border-radius:2px;
  background:var(--grad-brand);
  opacity:.5;
  margin:4px 0;
}

.empty{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:12px;
  min-height:240px;
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-l);
  color:var(--t2);font-size:14.5px;
  text-align:center;padding:28px;
}
.empty svg{width:34px;height:34px;color:var(--t3);}

/* 数据侧栏 */
.side{position:sticky;top:24px;display:flex;flex-direction:column;gap:18px;}
.panel{
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-m);
  padding:20px;box-shadow:var(--sh-1);
}
.panel h3{font-size:15.5px;font-weight:700;margin-bottom:14px;}
.data-list{display:flex;flex-direction:column;gap:12px;}
.data-list li{display:flex;align-items:baseline;justify-content:space-between;gap:12px;font-size:13.5px;color:var(--t2);}
.data-list .d-v{font-family:var(--mono);font-weight:700;font-size:15px;color:var(--brand-800);}
.panel-note{font-size:13.5px;color:var(--t2);line-height:1.8;}
.check-list{display:flex;flex-direction:column;gap:12px;}
.check-list li{display:flex;gap:10px;font-size:13.5px;color:var(--t2);line-height:1.75;}
.check-list .dot{
  width:6px;height:6px;flex:none;margin-top:9px;border-radius:50%;
  background:var(--grad-brand);
}
.panel-soft{background:var(--soft);border-color:transparent;box-shadow:none;}

/* 步骤区 */
.block{margin-top:clamp(48px,6vw,84px);}
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  padding:22px;box-shadow:var(--sh-1);
  transition:transform 180ms ease-out,box-shadow 180ms ease-out,border-color 180ms ease-out;
}
.step:hover{transform:translateY(-4px);border-color:rgba(108,59,255,.35);box-shadow:var(--sh-2);}
.step .n{
  font-family:var(--mono);font-size:13px;font-weight:700;
  display:inline-grid;place-items:center;
  width:34px;height:26px;border-radius:8px;
  background:#E6FBF7;color:#0A6B5C;
}
.step h3{font-size:16.5px;font-weight:600;margin:14px 0 8px;}
.step p{font-size:14px;color:var(--t2);line-height:1.8;}

/* 页脚 */
.site-footer{
  margin-top:clamp(56px,7vw,96px);
  background:var(--shell);
  color:rgba(255,255,255,.78);
  padding:clamp(40px,5vw,64px) 0 24px;
}
.f-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:28px;}
.f-logo{font-size:17px;font-weight:600;color:#fff;letter-spacing:.2px;}
.f-logo b{
  font-weight:800;
  background:var(--grad-brand);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.f-desc{margin-top:12px;font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.7);max-width:320px;}
.f-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px;}
.f-col ul{display:flex;flex-direction:column;gap:10px;}
.f-link{
  font-size:14px;color:rgba(255,255,255,.72);
  transition:color 180ms ease-out;
}
.f-link:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.f-bottom{
  margin-top:36px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}
.to-top{
  height:38px;padding:0 16px;border-radius:12px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.18);
  color:#fff;font-size:13.5px;font-weight:600;
  transition:background-color 180ms ease-out,transform 180ms ease-out;
}
.to-top:hover{background:rgba(255,255,255,.16);transform:translateY(-2px);}

/* ============ 断点 ============ */
@media (max-width:1279px){
  :root{--sb-w:84px;}
  .sb{padding:0 12px;align-items:stretch;}
  .sb-logo{justify-content:center;padding:0;}
  .logo-text{display:none;}
  .sb-link{justify-content:center;padding:0;}
  .sb-label{display:none;}
  .sb-extra{gap:6px;}
  .sb-foot{display:none;}
}
@media (max-width:1180px){
  .layout{grid-template-columns:minmax(0,1fr) 260px;}
}
@media (max-width:1023px){
  .sb{display:none;}
  .topbar{display:flex;}
  .main{margin-left:0;padding-top:56px;}
  .layout{grid-template-columns:1fr;}
  .side{position:static;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .f-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  .cards{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .page-head{padding:26px 22px;}
  .ph-actions{gap:10px;}
  .badges{gap:10px;}
  .section-head{align-items:flex-start;}
  .search{min-width:0;width:100%;}
  .f-grid{grid-template-columns:1fr;gap:24px;}
  .f-desc{max-width:none;}
}
@media (max-width:519px){
  body{font-size:16px;}
  .page-head h1{font-size:26px;}
  .btn{width:100%;}
  .ph-actions .btn{width:100%;}
  .badge{padding:6px 12px;}
  .card-body{padding:18px;}
  .f-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category2 */
:root{
  --brand-600:#6C3BFF;
  --brand-800:#4A22C9;
  --data-500:#14D8B8;
  --accent-500:#FF5FA2;
  --accent-400:#FF9A3C;
  --grad:linear-gradient(120deg,#6C3BFF 0%,#FF5FA2 62%,#FF9A3C 100%);
  --shell:linear-gradient(180deg,#1B1233 0%,#2A1A4D 100%);
  --bg-page:#F6F4FB;
  --card:#FFFFFF;
  --soft:#F1EDFB;
  --tx:#1B1233;
  --tx2:#5A5470;
  --tx3:#8C86A0;
  --line:#ECE7F8;
  --sep:#F0EBFA;
  --ok:#10B981;
  --warn:#F59E0B;
  --err:#EF4444;
  --r-s:10px;
  --r-m:16px;
  --r-l:20px;
  --r-xl:24px;
  --r-p:999px;
  --sh1:0 2px 8px rgba(27,18,51,.06);
  --sh2:0 10px 30px rgba(108,59,255,.10);
  --sh3:0 18px 46px rgba(108,59,255,.18);
  --sbw:248px;
  --mono:ui-monospace,'DIN Alternate','Roboto Mono',monospace;
  --tr:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-page);
  color:var(--tx);
  font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
}
body.lock{overflow:hidden}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0;line-height:1.3}
:focus-visible{outline:3px solid rgba(20,216,184,.45);outline-offset:2px;border-radius:8px}
:focus:not(:focus-visible){outline:none}
.skip-link{
  position:absolute;left:-9999px;top:8px;z-index:200;
  background:#fff;color:var(--brand-800);padding:10px 16px;border-radius:var(--r-s);
}
.skip-link:focus{left:16px}
.container{max-width:1200px;margin:0 auto;padding:0 clamp(20px,4vw,48px)}
.section{padding-block:clamp(26px,3.2vw,44px)}
.section-head{margin-bottom:24px}
.section-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;letter-spacing:-.3px}
.section-head .sec-desc{margin-top:10px;color:var(--tx2);font-size:15px;max-width:680px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:1.2px;color:var(--brand-800);
  background:var(--soft);border-radius:var(--r-p);padding:5px 14px;margin-bottom:14px;
}
.lead{color:var(--tx2);font-size:16px;line-height:1.9;max-width:760px}
.divider-grad{height:3px;width:100%;border-radius:3px;background:var(--grad);opacity:.35}

/* ---------- 侧栏 App Shell ---------- */
.sb{
  position:fixed;top:0;left:0;z-index:70;
  width:var(--sbw);height:100vh;
  display:flex;flex-direction:column;
  background:var(--shell);
  color:#fff;
  padding:0 14px 18px;
  transition:transform 240ms ease-out;
}
.sb-head{display:flex;align-items:center;gap:8px;height:88px;flex:none}
.sb-logo{display:flex;align-items:center;gap:11px;padding:0 6px;flex:1 1 auto;min-width:0}
.sb-mark{
  width:38px;height:38px;flex:none;border-radius:12px;
  background:var(--grad);display:grid;place-items:center;
  font-size:13px;font-weight:800;letter-spacing:.5px;color:#fff;
  box-shadow:0 6px 18px rgba(108,59,255,.4);
}
.sb-title{display:flex;flex-direction:column;line-height:1.2;white-space:nowrap;min-width:0}
.sb-title b{
  font-size:17px;font-weight:800;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.sb-title span{font-size:17px;font-weight:600;color:#fff}
.sb-title small{font-size:11px;color:rgba(255,255,255,.5);letter-spacing:.3px;margin-top:3px}
.drawer-close{
  display:none;width:36px;height:36px;border-radius:10px;flex:none;
  align-items:center;justify-content:center;color:rgba(255,255,255,.7);
  background:rgba(255,255,255,.06);
}
.drawer-close:hover{background:rgba(255,255,255,.12);color:#fff}
.sb-nav{display:flex;flex-direction:column;gap:4px;margin-top:6px}
.sb-link{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;border-radius:12px;
  color:rgba(255,255,255,.72);font-size:15px;
  transition:background-color var(--tr),color var(--tr);
}
.sb-i{width:20px;height:20px;flex:none}
.sb-link:hover{background:rgba(255,255,255,.06);color:#fff}
.sb-link.is-active{background:rgba(255,255,255,.08);color:#fff;font-weight:600}
.sb-link.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:4px;
  border-radius:2px;background:var(--grad);
}
.sb-divider{height:1px;background:rgba(255,255,255,.1);margin:16px 6px}
.sb-foot{margin-top:auto;padding:0 8px;font-size:11.5px;line-height:1.7;color:rgba(255,255,255,.42)}

/* ---------- 顶部栏（移动端） ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;z-index:60;height:56px;
  align-items:center;justify-content:space-between;gap:12px;
  padding:0 14px;background:var(--shell);color:#fff;
  box-shadow:0 6px 20px rgba(27,18,51,.18);
}
.tb-btn{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  color:rgba(255,255,255,.85);background:rgba(255,255,255,.07);
  transition:background-color var(--tr);
}
.tb-btn:hover{background:rgba(255,255,255,.16)}
.tb-logo{font-size:16px;font-weight:600;letter-spacing:.2px}
.tb-logo b{font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.scrim{
  position:fixed;inset:0;z-index:65;background:rgba(14,8,32,.55);
  opacity:0;pointer-events:none;transition:opacity 200ms ease-out;
}
.scrim.is-on{opacity:1;pointer-events:auto}

/* ---------- 主内容 ---------- */
.main{margin-left:var(--sbw);min-height:100vh}
.page-hero{
  position:relative;overflow:hidden;
  background:#1B1233 url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(27,18,51,.94) 0%,rgba(108,59,255,.74) 60%,rgba(255,95,162,.52) 100%);
}
.page-hero::after{
  content:"";position:absolute;left:clamp(20px,4vw,48px);bottom:0;height:3px;width:40%;
  background:var(--grad);border-radius:3px;opacity:.9;
}
.page-hero .container{position:relative;z-index:2;padding-block:clamp(38px,4.6vw,68px) clamp(34px,4vw,56px)}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.7);margin-bottom:12px}
.crumb a{transition:color var(--tr)}
.crumb a:hover{color:#fff}
.crumb span[aria-current]{color:rgba(255,255,255,.95)}
.page-hero h1{
  color:#fff;font-size:clamp(28px,3.7vw,44px);font-weight:800;line-height:1.22;
  letter-spacing:-.5px;max-width:900px;
}
.page-hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,#FFFFFF 0%,#E6FBFF 45%,#FFD9EA 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{margin-top:16px;color:rgba(255,255,255,.82);font-size:16.5px;max-width:660px;line-height:1.85}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  height:36px;padding:0 17px;border-radius:var(--r-p);
  display:inline-flex;align-items:center;
  font-size:14px;color:rgba(255,255,255,.9);
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.26);
  transition:background-color var(--tr),border-color var(--tr),transform var(--tr),box-shadow var(--tr);
}
.chip:hover{background:rgba(255,255,255,.22)}
.chip.is-on{
  background:var(--grad);border-color:transparent;color:#fff;font-weight:600;
  box-shadow:0 10px 24px rgba(255,95,162,.35);
}
.chip:active{transform:translateY(1px)}

/* ---------- 时间线 ---------- */
.timeline{position:relative;margin-top:8px}
.tl-item{position:relative;padding-left:46px;padding-bottom:20px}
.tl-item::before{
  content:"";position:absolute;left:11px;top:26px;bottom:-8px;width:2px;border-radius:2px;
  background:var(--grad);opacity:.32;
}
.tl-item:last-child::before{display:none}
.tl-item::after{
  content:"";position:absolute;left:5px;top:15px;width:14px;height:14px;border-radius:50%;
  background:#fff;border:3px solid var(--brand-600);
  box-shadow:0 0 0 4px rgba(108,59,255,.12);
}
.tl-item.is-extra:not(.revealed){display:none}
.tl-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-l);
  padding:20px 22px;box-shadow:var(--sh1);
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.tl-card:hover{transform:translateY(-4px);border-color:rgba(108,59,255,.35);box-shadow:var(--sh3)}
.tl-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.tl-no{
  font-family:var(--mono);font-size:13.5px;font-weight:700;color:var(--brand-800);
  background:var(--soft);border-radius:var(--r-p);padding:3px 13px;
}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-p);
  font-size:12px;font-weight:600;color:#0A6B5C;background:#E6FBF7;
}
.tl-title{font-size:18px;font-weight:600;margin:14px 0 8px;line-height:1.55}
.tl-desc{color:var(--tx2);font-size:15px;line-height:1.85}
.tl-meta{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  margin-top:16px;padding-top:14px;border-top:1px solid var(--sep);
  font-size:13px;color:var(--tx3);
}
.tl-time{font-family:var(--mono);letter-spacing:.3px}
.tl-link{
  font-size:13.5px;font-weight:600;color:var(--brand-600);
  border-bottom:1px solid transparent;padding-bottom:1px;
  transition:border-color var(--tr),color var(--tr);
}
.tl-link:hover{color:var(--brand-800);border-bottom-color:rgba(108,59,255,.55)}
.more-wrap{display:flex;justify-content:center;margin-top:26px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-p);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform var(--tr),box-shadow var(--tr),background-position 240ms ease-out,border-color var(--tr),background-color var(--tr);
}
.btn-primary{
  color:#fff;background-image:var(--grad);background-size:170% 100%;background-position:0 0;
  box-shadow:0 10px 26px rgba(108,59,255,.28);
}
.btn-primary:hover{background-position:70% 0;transform:translateY(-2px);box-shadow:0 16px 34px rgba(108,59,255,.36)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(108,59,255,.24)}
.btn-outline{background:#fff;border-color:var(--line);color:var(--brand-800);box-shadow:var(--sh1)}
.btn-outline:hover{border-color:rgba(108,59,255,.45);transform:translateY(-2px);box-shadow:var(--sh2)}
.btn-outline:active{transform:translateY(0);box-shadow:var(--sh1)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-white{background:#fff;color:var(--brand-800);box-shadow:0 10px 24px rgba(27,18,51,.18)}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(27,18,51,.24)}
.btn-white:active{transform:translateY(0)}
.btn-line{background:transparent;border-color:rgba(255,255,255,.65);color:#fff}
.btn-line:hover{background:rgba(255,255,255,.14)}
.btn:disabled{opacity:.4;pointer-events:none}
.link-more{
  font-size:14px;font-weight:600;color:var(--brand-600);
  border-bottom:1px solid transparent;transition:border-color var(--tr),color var(--tr);
}
.link-more:hover{color:var(--brand-800);border-bottom-color:rgba(108,59,255,.55)}

/* ---------- 覆盖范围 ---------- */
.split{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:clamp(22px,3vw,44px);align-items:center}
.media{
  border-radius:var(--r-l);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh2);aspect-ratio:16/11;background:var(--soft);
}
.media img{width:100%;height:100%;object-fit:cover}
.pts{display:grid;gap:14px;margin-top:22px}
.pt{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-m);
  padding:16px 18px;box-shadow:var(--sh1);
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.pt:hover{transform:translateY(-3px);border-color:rgba(108,59,255,.3);box-shadow:var(--sh2)}
.pt-ico{
  width:36px;height:36px;flex:none;border-radius:var(--r-s);
  background:var(--soft);color:var(--brand-600);display:grid;place-items:center;
}
.pt-t{font-size:15.5px;font-weight:600;margin-bottom:4px}
.pt-d{font-size:14px;color:var(--tx2);line-height:1.8}

/* ---------- 阅读顺序 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:6px}
.step{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-l);padding:24px 22px 22px;box-shadow:var(--sh1);
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.step:hover{transform:translateY(-4px);border-color:rgba(108,59,255,.35);box-shadow:var(--sh3)}
.step-no{
  font-family:var(--mono);font-size:12px;font-weight:700;letter-spacing:1px;
  color:var(--brand-800);background:var(--soft);border-radius:var(--r-p);
  padding:3px 12px;display:inline-block;margin-bottom:14px;
}
.step h3{font-size:17.5px;font-weight:600;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--tx2);line-height:1.85}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px;margin-top:6px}
.faq-item{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-m);overflow:hidden;
  transition:border-color var(--tr),box-shadow var(--tr);
}
.faq-item:hover{border-color:rgba(108,59,255,.3);box-shadow:var(--sh1)}
.faq-item.is-open{border-color:rgba(108,59,255,.35);box-shadow:var(--sh2)}
.faq-item.is-open::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  border-radius:3px;background:var(--grad);
}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  text-align:left;padding:18px 20px;font-size:16px;font-weight:600;line-height:1.6;
}
.faq-chev{width:20px;height:20px;flex:none;color:var(--brand-600);transition:transform 200ms ease-out}
.faq-item.is-open .faq-chev{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease-out}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{padding:0 20px 20px;color:var(--tx2);font-size:15px;line-height:1.85}

/* ---------- CTA 条 ---------- */
.cta-bar{
  position:relative;overflow:hidden;color:#fff;
  background-image:var(--grad);border-radius:var(--r-xl);
  padding:clamp(24px,3vw,38px);
  display:flex;align-items:center;justify-content:space-between;gap:22px;flex-wrap:wrap;
  box-shadow:0 18px 46px rgba(108,59,255,.28);
}
.cta-bar::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;
  border-radius:50%;background:rgba(255,255,255,.12);
}
.cta-text{position:relative;z-index:2;max-width:640px}
.cta-text h2{font-size:clamp(20px,2.4vw,26px);font-weight:700;margin-bottom:8px}
.cta-text p{font-size:15px;color:rgba(255,255,255,.9)}
.cta-actions{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap}
.toast{
  position:fixed;left:50%;bottom:34px;transform:translate(-50%,14px);
  background:rgba(27,18,51,.94);color:#fff;font-size:14px;
  padding:10px 20px;border-radius:var(--r-p);opacity:0;pointer-events:none;
  transition:opacity 200ms ease-out,transform 200ms ease-out;z-index:120;
}
.toast.is-on{opacity:1;transform:translate(-50%,0)}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:clamp(40px,5vw,72px);
  background:var(--shell);color:rgba(255,255,255,.78);
  padding-block:clamp(38px,4.5vw,58px) 22px;
}
.f-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:clamp(20px,3vw,40px)}
.f-logo{font-size:19px;font-weight:600;color:#fff;margin-bottom:12px;white-space:nowrap}
.f-logo b{font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.f-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:320px}
.f-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px}
.f-col ul{display:grid;gap:10px}
.f-link{
  font-size:14px;color:rgba(255,255,255,.68);
  border-bottom:1px solid transparent;padding-bottom:1px;
  transition:color var(--tr),border-color var(--tr);
}
a.f-link:hover{color:#fff;border-bottom-color:rgba(255,255,255,.5)}
.f-bottom{
  margin-top:clamp(26px,3vw,38px);padding-top:18px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}
.to-top{
  height:38px;padding:0 18px;border-radius:12px;
  background:rgba(255,255,255,.1);color:#fff;font-size:13.5px;
  transition:background-color var(--tr),transform var(--tr);
}
.to-top:hover{background:rgba(255,255,255,.2);transform:translateY(-2px)}
.to-top:active{transform:translateY(0)}

/* ---------- 断点 ---------- */
@media (min-width:1024px) and (max-width:1279px){
  :root{--sbw:84px}
  .sb{padding-left:10px;padding-right:10px}
  .sb-logo{justify-content:center;padding:0}
  .sb-title{display:none}
  .sb-link{justify-content:center;padding:0}
  .sb-label{display:none}
  .sb-foot{display:none}
}
@media (max-width:1023px){
  :root{--sbw:0px}
  .topbar{display:flex}
  .sb{
    width:min(78vw,300px);padding-top:6px;
    transform:translateX(-100%);box-shadow:0 20px 60px rgba(14,8,32,.5);
  }
  .sb.is-open{transform:none}
  .sb-title{display:flex}
  .sb-label{display:inline}
  .sb-link{height:48px;justify-content:flex-start;padding:0 12px}
  .sb-foot{display:block}
  .drawer-close{display:flex}
  .main{margin-left:0;padding-top:56px}
  .split{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr;gap:16px}
  .f-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .tl-item{padding-left:34px}
  .tl-item::before{left:7px}
  .tl-item::after{left:1px;width:12px;height:12px;border-width:2.5px}
  .tl-card{padding:18px}
  .tl-title{font-size:17px}
  .cta-bar{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
}
@media (max-width:520px){
  .page-hero h1{font-size:26px}
  .hero-sub{font-size:15.5px}
  .chip{height:34px;font-size:13.5px;padding:0 14px}
  .f-grid{grid-template-columns:1fr}
  .f-bottom{flex-direction:column;align-items:flex-start}
  .btn{width:100%}
  .cta-actions{flex-direction:column}
  .more-wrap .btn{width:100%}
}

/* roulang page: category3 */
:root{
  --brand-600:#6C3BFF;
  --brand-800:#4A22C9;
  --data-500:#14D8B8;
  --accent-500:#FF5FA2;
  --accent-400:#FF9A3C;
  --grad:linear-gradient(120deg,#6C3BFF 0%,#FF5FA2 62%,#FF9A3C 100%);
  --shell:linear-gradient(180deg,#1B1233 0%,#2A1A4D 100%);
  --bg-page:#F6F4FB;
  --card:#FFFFFF;
  --soft:#F1EDFB;
  --t1:#1B1233;
  --t2:#5A5470;
  --t3:#8C86A0;
  --line:#ECE7F8;
  --div:#F0EBFA;
  --r-s:10px;
  --r-m:16px;
  --r-l:20px;
  --r-xl:24px;
  --r-p:999px;
  --sh1:0 2px 8px rgba(27,18,51,.06);
  --sh2:0 10px 30px rgba(108,59,255,.10);
  --sh3:0 18px 46px rgba(108,59,255,.18);
  --sb:248px;
  --mono:ui-monospace,'DIN Alternate','Roboto Mono',monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-page);
  color:var(--t1);
  font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Noto 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;border:0}
a{color:var(--brand-600);text-decoration:none;transition:color .18s ease-out,background-color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus{outline:none}
:focus-visible{outline:3px solid rgba(20,216,184,.45);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 clamp(20px,4vw,48px)}

/* ---------- 侧栏导航壳 ---------- */
.shell{
  position:fixed;left:0;top:0;bottom:0;width:var(--sb);
  background:var(--shell);
  display:flex;flex-direction:column;
  padding:0 14px 18px;
  z-index:60;
  overflow-y:auto;
}
.sb-brand{
  height:88px;display:flex;align-items:center;gap:10px;
  padding:0 8px;flex:0 0 auto;
}
.sb-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:12px;
  background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-weight:800;font-size:14px;letter-spacing:.5px;
  box-shadow:0 6px 18px rgba(108,59,255,.45);
}
.sb-name{
  font-size:16px;font-weight:600;color:#fff;white-space:nowrap;
  letter-spacing:.2px;
}
.sb-name b{
  font-weight:800;
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.sb-name em{
  display:block;font-style:normal;font-size:11px;font-weight:400;
  color:rgba(255,255,255,.5);letter-spacing:.6px;line-height:1.4;margin-top:2px;
}
.sb-nav{display:flex;flex-direction:column;gap:4px;margin-top:6px}
.sb-link{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 14px;border-radius:12px;
  color:rgba(255,255,255,.72);font-size:14.5px;font-weight:500;
  transition:background-color .18s ease-out,color .18s ease-out;
  white-space:nowrap;
}
.sb-link:hover{background:rgba(255,255,255,.06);color:#fff}
.sb-link.is-active{background:rgba(255,255,255,.08);color:#fff;font-weight:600}
.sb-link.is-active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:4px;
  border-radius:4px;background:var(--grad);
}
.sb-i{width:20px;height:20px;flex:0 0 20px}
.sb-label{overflow:hidden;text-overflow:ellipsis}
.sb-divider{height:1px;background:rgba(255,255,255,.1);margin:16px 8px}
.sb-extra{display:flex;flex-direction:column;gap:4px}
.sb-btn{width:100%;text-align:left}
.sb-foot{
  margin-top:auto;padding:18px 10px 0;
  font-size:11.5px;line-height:1.7;color:rgba(255,255,255,.42);
}

/* ---------- 顶部移动栏 ---------- */
.topbar{
  display:none;position:fixed;left:0;right:0;top:0;height:56px;z-index:70;
  align-items:center;justify-content:space-between;gap:10px;
  padding:0 14px;
  background:rgba(27,18,51,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.tb-btn{
  width:38px;height:38px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  color:#fff;background:rgba(255,255,255,.08);
  transition:background-color .18s ease-out;
}
.tb-btn:hover{background:rgba(255,255,255,.16)}
.tb-btn svg{width:20px;height:20px}
.tb-logo{font-size:16px;font-weight:600;color:#fff;letter-spacing:.2px}
.tb-logo b{
  font-weight:800;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}

/* ---------- 抽屉 ---------- */
.scrim{
  position:fixed;inset:0;background:rgba(14,8,32,.55);
  opacity:0;visibility:hidden;transition:opacity .2s ease-out,visibility .2s ease-out;
  z-index:80;
}
.scrim.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;left:0;top:0;bottom:0;width:min(78vw,300px);
  background:var(--shell);z-index:90;
  transform:translateX(-102%);
  transition:transform .22s ease-out;
  display:flex;flex-direction:column;
  padding:0 14px 18px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.dw-head{display:flex;align-items:center;gap:10px;height:64px;padding:0 6px}
.dw-name{font-size:16px;font-weight:600;color:#fff;white-space:nowrap}
.dw-name b{
  font-weight:800;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.dw-close{margin-left:auto;width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;background:rgba(255,255,255,.08)}
.dw-close:hover{background:rgba(255,255,255,.16)}
.dw-close svg{width:18px;height:18px}
.drawer .sb-link{height:48px}
.drawer .sb-link::after{
  content:"";width:6px;height:6px;border-right:1.6px solid rgba(255,255,255,.4);
  border-top:1.6px solid rgba(255,255,255,.4);transform:rotate(45deg);margin-left:auto;
}

/* ---------- 主内容 ---------- */
.main{margin-left:var(--sb);padding-bottom:72px}
.section{margin-top:clamp(56px,7vw,96px)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:clamp(24px,3vw,32px)}
.sec-title{font-size:clamp(24px,3vw,34px);line-height:1.3;font-weight:700;letter-spacing:.2px}
.sec-sub{font-size:14px;color:var(--t2);margin-top:8px;line-height:1.7}
.sec-link{
  font-size:14px;font-weight:600;color:var(--brand-600);
  border-bottom:1px solid transparent;padding-bottom:2px;white-space:nowrap;
}
.sec-link:hover{border-bottom-color:var(--brand-600)}

/* ---------- 页面头 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  border-radius:var(--r-xl);
  padding:clamp(52px,7vw,92px) clamp(22px,4vw,56px);
  text-align:center;color:#fff;
  background:
    linear-gradient(135deg,rgba(27,18,51,.93) 0%,rgba(108,59,255,.74) 100%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat,
    #1B1233;
  box-shadow:var(--sh2);
}
.page-hero::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:0;
  width:40%;height:3px;border-radius:3px;background:var(--grad);
}
.page-hero .crumb{
  font-size:13px;color:rgba(255,255,255,.66);margin-bottom:16px;
  display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;
}
.page-hero .crumb a{color:rgba(255,255,255,.66)}
.page-hero .crumb a:hover{color:#fff}
.page-hero .crumb .cur{color:#fff}
.page-hero h1{
  font-size:clamp(30px,4.4vw,52px);line-height:1.18;font-weight:800;
  letter-spacing:.4px;
}
.page-hero .lede{
  margin:18px auto 0;max-width:620px;
  font-size:clamp(15px,1.5vw,18px);line-height:1.8;color:rgba(255,255,255,.82);
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:26px}
.hero-tag{
  display:inline-flex;align-items:center;gap:6px;
  height:30px;padding:0 14px;border-radius:var(--r-p);
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);
  font-size:13px;color:#fff;
}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:5px;
  height:26px;padding:0 10px;border-radius:12px;
  font-size:12px;font-weight:600;letter-spacing:.2px;
  font-family:var(--mono);
}
.badge-data{background:#E6FBF7;color:#0A6B5C}
.badge-outline{
  background:#fff;color:var(--brand-800);
  border:1px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad);
  background-origin:border-box;background-clip:padding-box,border-box;
}
.badge-soft{background:var(--soft);color:var(--brand-800)}

/* ---------- 九宫格 ---------- */
.tile-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
}
.tile{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-l);overflow:hidden;box-shadow:var(--sh1);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.tile:hover{transform:translateY(-4px);box-shadow:var(--sh3);border-color:rgba(108,59,255,.35)}
.tile-link{display:block;color:inherit}
.tile-media{position:relative;aspect-ratio:1/1;overflow:hidden;background:var(--soft)}
.tile-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .3s ease-out;
}
.tile:hover .tile-media img{transform:scale(1.04)}
.tile-media .badge{position:absolute;right:10px;top:10px}
.tile-body{padding:16px 18px 18px}
.tile-name{font-size:17px;font-weight:600;line-height:1.5;color:var(--t1)}
.tile-meta{font-size:13px;line-height:1.7;color:var(--t3);margin-top:6px}
.tile-cta{
  margin-top:12px;font-size:13px;font-weight:600;color:var(--brand-600);
  display:inline-flex;align-items:center;gap:4px;
}

/* ---------- 说明卡 ---------- */
.note-card{
  margin-top:clamp(26px,3vw,36px);
  background:var(--soft);border-radius:var(--r-l);
  padding:clamp(24px,3.4vw,40px);
  border:1px solid rgba(108,59,255,.12);
}
.note-card h3{font-size:18px;font-weight:700;margin-bottom:14px}
.note-card p{font-size:16.5px;line-height:1.9;color:var(--t2);max-width:760px}
.note-card p + p{margin-top:.9em}

/* ---------- 两栏混合区 ---------- */
.mix{display:grid;grid-template-columns:minmax(0,0.92fr) minmax(0,1.08fr);gap:24px;align-items:start}
.panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-l);
  padding:clamp(22px,2.6vw,30px);box-shadow:var(--sh1);
}
.panel-title{font-size:20px;font-weight:700;margin-bottom:6px}
.panel-desc{font-size:13.5px;color:var(--t3);margin-bottom:18px}
.point-list li{
  position:relative;padding:14px 0 14px 26px;
  font-size:15.5px;line-height:1.85;color:var(--t2);
  border-bottom:1px solid var(--div);
}
.point-list li:last-child{border-bottom:0;padding-bottom:0}
.point-list li::before{
  content:"";position:absolute;left:0;top:23px;
  width:10px;height:10px;border-radius:4px;background:var(--grad);
}
.point-list li b{color:var(--t1);font-weight:600}

/* ---------- FAQ ---------- */
.faq-item{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-m);overflow:hidden;margin-bottom:12px;
  transition:box-shadow .18s ease-out,border-color .18s ease-out;
}
.faq-item:last-child{margin-bottom:0}
.faq-item[open]{box-shadow:var(--sh2);border-color:rgba(108,59,255,.28)}
.faq-item[open]::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:3px;background:var(--grad);
}
.faq-q{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding:16px 18px;font-size:16px;font-weight:600;color:var(--t1);
}
.faq-q::-webkit-details-marker{display:none}
.faq-q svg{width:18px;height:18px;flex:0 0 18px;color:var(--brand-600);transition:transform .18s ease-out}
.faq-item[open] .faq-q svg{transform:rotate(180deg)}
.faq-a{padding:0 18px 18px;font-size:15px;line-height:1.85;color:var(--t2)}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--grad);border-radius:var(--r-xl);
  padding:clamp(26px,3.6vw,44px);
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  box-shadow:0 18px 46px rgba(255,95,162,.22);
  color:#fff;
}
.cta-band h2{font-size:clamp(20px,2.4vw,26px);font-weight:700;line-height:1.4}
.cta-band p{font-size:14.5px;color:rgba(255,255,255,.86);margin-top:8px;max-width:560px;line-height:1.8}
.cta-acts{display:flex;align-items:center;gap:14px;flex-wrap:wrap}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-p);
  font-size:14.5px;font-weight:600;white-space:nowrap;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,color .18s ease-out;
}
.btn svg{width:18px;height:18px}
.btn-primary{
  background:var(--grad);color:#fff;
  box-shadow:0 8px 22px rgba(108,59,255,.32);
  background-size:150% 100%;background-position:0% 50%;
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(108,59,255,.42);background-position:100% 50%}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(108,59,255,.3)}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.6)}
.btn-ghost:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--brand-800)}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(27,18,51,.18)}
.btn-textlink{
  color:#fff;font-weight:600;font-size:14.5px;
  border-bottom:1px solid rgba(255,255,255,.55);padding-bottom:2px;height:auto;
}
.btn-textlink:hover{border-bottom-color:#fff}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}
.sec-link-plain{
  font-size:14px;font-weight:600;color:var(--brand-600);
  border-bottom:1px solid transparent;padding-bottom:2px;
}
.sec-link-plain:hover{border-bottom-color:var(--brand-600)}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:clamp(56px,7vw,96px);
  background:var(--shell);color:rgba(255,255,255,.78);
}
.f-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:32px;padding:clamp(40px,5vw,64px) 0 34px;
}
.f-logo{font-size:17px;font-weight:600;color:#fff;white-space:nowrap}
.f-logo b{
  font-weight:800;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.f-desc{font-size:14px;line-height:1.85;margin-top:12px;max-width:320px;color:rgba(255,255,255,.72)}
.f-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px}
.f-col li{margin-bottom:10px}
.f-link{font-size:14px;color:rgba(255,255,255,.72);line-height:1.7}
a.f-link:hover{color:#fff;border-bottom:1px solid rgba(255,255,255,.6)}
.f-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}
.to-top{
  height:38px;padding:0 16px;border-radius:12px;
  background:rgba(255,255,255,.1);color:#fff;font-size:13.5px;
  transition:background-color .18s ease-out,transform .18s ease-out;
}
.to-top:hover{background:rgba(255,255,255,.2);transform:translateY(-2px)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--sb:84px}
  .sb-brand{justify-content:center;padding:0}
  .sb-name{display:none}
  .sb-link{justify-content:center;padding:0}
  .sb-label{display:none}
  .sb-foot{display:none}
  .sb-btn{padding:0}
}
@media (max-width:1023px){
  .shell{display:none}
  .topbar{display:flex}
  .main{margin-left:0;padding-top:56px}
  .mix{grid-template-columns:1fr}
  .tile-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
  .f-grid{grid-template-columns:1fr 1fr;gap:26px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{margin-top:56px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:10px}
  .cta-band{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .tile-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
  .tile-body{padding:14px}
  .tile-name{font-size:15.5px}
  .tile-meta{font-size:12.5px}
  .f-grid{grid-template-columns:1fr;gap:24px}
  .btn{width:100%}
  .cta-acts{width:100%}
  .btn-textlink{width:auto}
  .page-hero{padding:44px 20px}
}