/* roulang page: index */
:root{
  --bg-deep:#06141E; --bg:#081A24; --bg-soft:#0D2431; --bg-elev:#102C3A;
  --brand:#1FB6A6; --brand-2:#2A8FD6; --brand-ink:#7FE3D6; --glow:#3FE0C6;
  --accent:#F0A85A;
  --text:#E9F4F6; --text-2:#A6BEC7; --text-3:#6E8894; --text-invert:#04141C;
  --line:rgba(126,196,214,.16); --line-strong:rgba(126,196,214,.30);
  --glass-bg:linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  --glass-border:rgba(126,196,214,.18); --glass-blur:14px;
  --ok:#34C08A; --warn:#F0A85A; --err:#E2705F;
  --r-card:18px; --r-block:24px; --r-btn:12px; --r-img:14px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);letter-spacing:.01em;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.3}
p{margin:0}
h1{font-size:clamp(28px,4.2vw,46px);line-height:1.24;letter-spacing:-.01em}
h2{font-size:clamp(22px,3vw,32px)}
h3{font-size:18px;font-weight:600;line-height:1.45}
::selection{background:rgba(31,182,166,.35);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg-deep)}
::-webkit-scrollbar-thumb{background:rgba(31,182,166,.35);border-radius:999px;border:2px solid var(--bg-deep)}
::-webkit-scrollbar-thumb:hover{background:rgba(31,182,166,.55)}

/* ---------- 布局骨架 ---------- */
.shell{margin-left:240px;min-height:100vh;display:flex;flex-direction:column}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:clamp(56px,8vw,112px) 0}
.section--deep{background:var(--bg-deep)}
.section--soft{background:var(--bg-soft)}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px}
.sec-title{position:relative;padding-left:16px}
.sec-title::before{content:"";position:absolute;left:0;top:.28em;width:3px;height:22px;border-radius:2px;background:var(--brand);box-shadow:0 0 12px rgba(63,224,198,.5)}
.sec-lead{margin-top:12px;color:var(--text-2);max-width:680px;font-size:15px}
.eyebrow{font-size:13px;color:var(--text-3);margin-bottom:10px}
.muted{color:var(--text-3)}
.grid-veil{position:absolute;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(126,196,214,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(126,196,214,.05) 1px,transparent 1px);
  background-size:48px 48px}

/* ---------- 侧栏 / 导航 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:240px;z-index:60;
  display:flex;flex-direction:column;gap:18px;padding:22px 16px;
  background:linear-gradient(180deg, rgba(6,20,30,.96), rgba(8,26,36,.92));
  border-right:1px solid var(--line);
  backdrop-filter:blur(var(--glass-blur));
}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;color:var(--text-invert);
  background:linear-gradient(140deg,var(--brand),var(--brand-2));
  box-shadow:0 0 20px rgba(31,182,166,.42);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-name{font-size:16px;font-weight:700;color:var(--text)}
.brand-sub{font-size:12px;color:var(--text-3)}
.nav{display:flex;flex-direction:column;gap:6px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:10px;height:44px;padding:0 14px;
  border-radius:12px;font-size:15px;font-weight:500;color:var(--text-2);
  transition:background .22s var(--ease),color .22s var(--ease),box-shadow .22s var(--ease);
}
.nav-item::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:2px;background:var(--brand);
  transition:height .22s var(--ease);
}
.nav-item:hover{background:rgba(255,255,255,.05);color:var(--text)}
.nav-item:hover::before{height:18px}
.nav-item[aria-current="page"]{color:var(--text);background:var(--glass-bg);box-shadow:inset 0 0 0 1px var(--glass-border)}
.nav-item[aria-current="page"]::before{height:22px}
.nav-item[aria-current="page"] .nav-ico{color:var(--brand-ink)}
.nav-ico{width:18px;height:18px;flex:0 0 18px;color:var(--text-3);transition:color .22s var(--ease)}
.nav-item:hover .nav-ico{color:var(--brand-ink)}
.nav-divider{height:1px;background:var(--line);margin:4px 0}
.sidebar-cta{
  margin-top:auto;padding:16px;border-radius:var(--r-card);
  background:var(--glass-bg);border:1px solid var(--glass-border);
  backdrop-filter:blur(var(--glass-blur));
}
.sidebar-cta p{font-size:12px;color:var(--text-3);margin-top:10px;line-height:1.6}

/* 移动端顶栏与抽屉 */
.mobile-bar{
  display:none;position:fixed;top:0;left:0;right:0;height:64px;z-index:70;
  align-items:center;justify-content:space-between;padding:0 18px;
  background:rgba(6,20,30,.86);backdrop-filter:blur(var(--glass-blur));
  border-bottom:1px solid transparent;transition:border-color .25s var(--ease),background .25s var(--ease);
}
.mobile-bar.is-scrolled{border-bottom-color:var(--line);background:rgba(6,20,30,.95)}
.brand-mini{display:flex;align-items:center;gap:10px}
.brand-mini .brand-mark{width:34px;height:34px;flex:0 0 34px;border-radius:10px;font-size:15px}
.brand-mini .brand-name{font-size:15px}
.hamburger{width:44px;height:44px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;border-radius:12px}
.hamburger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--text);transition:transform .26s var(--ease),opacity .2s var(--ease)}
.hamburger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.is-open span:nth-child(2){opacity:0}
.hamburger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.drawer-mask{position:fixed;inset:0;background:rgba(3,10,14,.72);opacity:0;visibility:hidden;transition:opacity .26s var(--ease),visibility .26s var(--ease);z-index:80}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:280px;z-index:90;padding:22px 16px;
  display:flex;flex-direction:column;gap:18px;
  background:linear-gradient(180deg, rgba(6,20,30,.99), rgba(8,26,36,.97));
  border-right:1px solid var(--line);
  transform:translateX(-100%);transition:transform .26s var(--ease);
}
.drawer.is-open{transform:translateX(0)}

/* ---------- 按钮 / 徽章 / 卡片 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease),border-color .24s var(--ease),color .24s var(--ease);
}
.btn-primary{background:linear-gradient(120deg,var(--brand),var(--brand-2));color:var(--text-invert);box-shadow:0 6px 24px rgba(31,182,166,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 34px rgba(31,182,166,.5)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 16px rgba(31,182,166,.3)}
.btn-ghost{background:var(--glass-bg);border:1px solid var(--glass-border);color:var(--text);backdrop-filter:blur(var(--glass-blur))}
.btn-ghost:hover{border-color:rgba(31,182,166,.5);color:var(--brand-ink);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-block{width:100%}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--brand-ink)}
.text-link svg{width:16px;height:16px;transition:transform .24s var(--ease)}
.text-link:hover{color:var(--glow)}
.text-link:hover svg{transform:translateX(4px)}
.badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:500;background:rgba(31,182,166,.12);color:var(--brand-ink)}
.badge--amber{background:rgba(240,168,90,.14);color:#F5C48C}
.card{
  background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--r-card);
  box-shadow:0 10px 30px rgba(0,0,0,.35);backdrop-filter:blur(var(--glass-blur));
  padding:20px;transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.card--hover:hover{transform:translateY(-4px);border-color:rgba(31,182,166,.45);box-shadow:0 18px 44px rgba(31,182,166,.18)}
.media{position:relative;overflow:hidden;border-radius:var(--r-img);background:linear-gradient(120deg,var(--brand),var(--brand-2))}
.media img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease)}
.ratio-16x9{aspect-ratio:16/9}
.ratio-16x10{aspect-ratio:16/10}
.ratio-4x3{aspect-ratio:4/3}
.card--hover:hover .media img{transform:scale(1.04)}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:88vh;display:flex;align-items:center;overflow:hidden;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;}
.hero::before{content:"";position:absolute;inset:0;z-index:0;background:linear-gradient(180deg, rgba(6,20,30,.82), rgba(8,26,36,.55))}
.hero::after{content:"";position:absolute;inset:0;z-index:0;background:radial-gradient(600px 400px at 78% 18%, rgba(31,182,166,.20), transparent 70%)}
.hero-inner{position:relative;z-index:2;width:100%;padding:100px 0}
.hero h1{max-width:16em}
.hero-sub{margin-top:18px;max-width:34em;font-size:16px;color:var(--text-2)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.trust-row{display:flex;flex-wrap:wrap;gap:38px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line)}
.trust-item .num{font-variant-numeric:tabular-nums;font-weight:700;color:var(--brand);line-height:1.1;display:block}
.trust-item .unit{font-size:13px;color:var(--text-3);margin-left:2px}
.trust-item .cap{font-size:12px;color:var(--text-3);margin-top:4px}
.trust-item:nth-child(1) .num{font-size:44px}
.trust-item:nth-child(2) .num{font-size:36px}
.trust-item:nth-child(3) .num{font-size:30px}
.hero-card{display:flex;flex-direction:column;gap:16px;padding:18px}
.check-list{display:flex;flex-direction:column;gap:12px}
.check-list li{position:relative;padding-left:26px;font-size:14px;color:var(--text-2);line-height:1.7}
.check-list li::before{content:"";position:absolute;left:3px;top:.72em;width:10px;height:6px;border-left:2px solid var(--brand);border-bottom:2px solid var(--brand);transform:rotate(-45deg)}

/* ---------- 痛点 ---------- */
.pain-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 40px}
.pain-item{padding:26px 0;border-bottom:1px solid transparent;border-image:linear-gradient(90deg, rgba(126,196,214,.28), rgba(126,196,214,0)) 1;}
.pain-item{display:flex;gap:14px;align-items:flex-start}
.pain-item svg{width:22px;height:22px;flex:0 0 22px;color:var(--text-3);margin-top:5px}
.pain-item p{font-size:16px;color:var(--text-2)}

/* ---------- 流程 ---------- */
.steps{position:relative;display:flex;flex-direction:column;gap:20px;padding-left:8px}
.steps::before{content:"";position:absolute;left:26px;top:14px;bottom:14px;border-left:1px dashed var(--line-strong)}
.step{position:relative;display:flex;gap:18px;align-items:stretch}
.step-no{
  flex:0 0 56px;font-size:40px;font-weight:700;line-height:1;color:rgba(31,182,166,.42);
  font-variant-numeric:tabular-nums;position:relative;z-index:1;background:var(--bg);padding-top:2px;
}
.step .card{flex:1}
.step .card h3{margin-bottom:8px}
.step .card p{font-size:14px;color:var(--text-2)}

/* ---------- 成果 ---------- */
.stat-band{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;padding:28px 32px;margin-bottom:44px}
.stat-band .num{font-size:clamp(28px,3.4vw,40px);font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.1}
.stat-band .cap{font-size:13px;color:var(--text-3);margin-top:6px}
.case-card{padding:0;overflow:hidden}
.case-card .case-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:12px}
.case-card p{font-size:14px;color:var(--text-2)}

/* ---------- 证言 ---------- */
.quote-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.quote{position:relative;padding:28px 24px 22px}
.quote::before{content:"\201C";position:absolute;left:18px;top:6px;font-size:64px;line-height:1;color:var(--brand);opacity:.25}
.quote p{font-size:15px;color:var(--text);position:relative;z-index:1;padding-top:14px}
.quote footer{margin-top:16px;font-size:13px;color:var(--text-3)}

/* ---------- 分类导航条 ---------- */
.cat-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:44px}
.cat-item{display:flex;gap:14px;align-items:flex-start;padding:18px 20px;border-radius:var(--r-card);background:var(--glass-bg);border:1px solid var(--glass-border);transition:transform .26s var(--ease),border-color .26s var(--ease)}
.cat-item:hover{transform:translateY(-4px);border-color:rgba(31,182,166,.45)}
.cat-item .idx{font-size:22px;font-weight:700;color:rgba(31,182,166,.5);font-variant-numeric:tabular-nums;line-height:1.2}
.cat-item h3{font-size:16px}
.cat-item p{font-size:13px;color:var(--text-3);margin-top:4px}

/* ---------- CMS 列表卡 ---------- */
.list-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.list-card{display:flex;flex-direction:column;gap:14px;padding:20px;border-radius:var(--r-card);
  background:var(--glass-bg);border:1px solid var(--glass-border);box-shadow:0 10px 30px rgba(0,0,0,.35);
  backdrop-filter:blur(var(--glass-blur));
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease)}
.list-card:hover{transform:translateY(-4px);border-color:rgba(31,182,166,.45);box-shadow:0 18px 44px rgba(31,182,166,.18)}
.list-card:hover .media img{transform:scale(1.04)}
.list-card-title{font-size:17px;font-weight:600;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.list-card-desc{font-size:14px;color:var(--text-3);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.list-card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;font-size:13px}
.list-card-foot time{color:var(--accent);font-variant-numeric:tabular-nums}
.read-arrow{display:inline-flex;align-items:center;gap:4px;color:var(--brand-ink);font-size:13px}
.read-arrow svg{width:15px;height:15px;transition:transform .24s var(--ease)}
.list-card:hover .read-arrow svg{transform:translateX(4px)}
.empty-state{grid-column:1/-1;display:flex;flex-direction:column;align-items:center;gap:12px;padding:48px;border-radius:var(--r-card);
  background:var(--glass-bg);border:1px solid var(--glass-border);text-align:center}
.empty-state .ico{width:64px;height:64px;border-radius:50%;background:rgba(31,182,166,.12);display:flex;align-items:center;justify-content:center;color:var(--brand-ink)}
.empty-state h3{font-size:16px}
.empty-state p{font-size:14px;color:var(--text-3)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;min-height:56px;padding:14px 0;text-align:left;font-size:15px;font-weight:500;color:var(--text)}
.faq-q .plus{position:relative;width:22px;height:22px;flex:0 0 22px;border-radius:50%;border:1px solid var(--line-strong);transition:transform .26s var(--ease),border-color .26s var(--ease)}
.faq-q .plus::before,.faq-q .plus::after{content:"";position:absolute;left:50%;top:50%;background:var(--brand-ink);transform:translate(-50%,-50%)}
.faq-q .plus::before{width:10px;height:2px}
.faq-q .plus::after{width:2px;height:10px}
.faq-item.is-open .faq-q .plus{transform:rotate(45deg);border-color:var(--brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-item.is-open .faq-a{max-height:340px}
.faq-a p{padding:0 0 20px;font-size:15px;color:var(--text-2);line-height:1.8;max-width:760px}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;border-radius:var(--r-block);padding:clamp(32px,4vw,52px);
  background:var(--glass-bg);border:1px solid var(--glass-border);backdrop-filter:blur(var(--glass-blur));
  box-shadow:0 18px 44px rgba(0,0,0,.4)}
.cta-band::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(520px 320px at 88% 12%, rgba(31,182,166,.22), transparent 70%)}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between}
.cta-inner h2{max-width:20em}
.cta-inner .note{margin-top:10px;font-size:13px;color:var(--text-3)}
.cta-actions{display:flex;flex-direction:column;gap:10px;min-width:220px}

/* ---------- 页脚 ---------- */
.footer{margin-top:auto;background:var(--bg-deep);border-top:1px solid var(--line);padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1fr;gap:32px;padding-bottom:40px}
.footer h4{font-size:15px;margin-bottom:16px;color:var(--text)}
.footer p{font-size:13px;color:var(--text-3);line-height:1.8}
.footer ul{display:flex;flex-direction:column;gap:10px}
.footer li a{font-size:13px;color:var(--text-2)}
.footer li a:hover{color:var(--brand-ink)}
.footer-brand .brand{margin-bottom:16px}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--text-2)}
.footer-contact svg{width:16px;height:16px;flex:0 0 16px;margin-top:5px;color:var(--brand-ink)}
.qr-box{width:96px;height:96px;border-radius:14px;border:1px dashed var(--line-strong);background:var(--glass-bg);display:flex;align-items:center;justify-content:center;color:var(--text-3);font-size:12px}
.footer-bottom{border-top:1px solid var(--line);padding-top:20px;padding-bottom:28px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between}
.footer-bottom p{font-size:12px;color:var(--text-3)}

/* ---------- 返回顶部 ---------- */
.to-top{position:fixed;right:22px;bottom:22px;width:44px;height:44px;border-radius:50%;z-index:65;
  display:flex;align-items:center;justify-content:center;color:var(--brand-ink);
  background:var(--glass-bg);border:1px solid var(--glass-border);backdrop-filter:blur(var(--glass-blur));
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .26s var(--ease),transform .26s var(--ease),visibility .26s var(--ease),box-shadow .26s var(--ease)}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{box-shadow:0 0 22px rgba(31,182,166,.45);border-color:rgba(31,182,166,.5)}
.to-top svg{width:18px;height:18px}

/* ---------- 玻璃回退 ---------- */
@supports not (backdrop-filter: blur(1px)){
  .sidebar,.mobile-bar,.drawer,.card,.list-card,.cta-band,.to-top,.sidebar-cta{background:rgba(13,36,49,.94)}
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px) and (min-width:1024px){
  .sidebar{width:200px;padding:18px 12px}
  .brand-sub{display:none}
  .shell{margin-left:200px}
  .nav-item{font-size:14px;padding:0 10px}
  .container{padding:0 24px}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .mobile-bar{display:flex}
  .shell{margin-left:0}
  .hero{padding-top:64px;min-height:auto}
  .hero-inner{padding:56px 0 64px}
  .container{padding:0 22px}
  .list-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat-band{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;padding:24px}
  .cat-strip{grid-template-columns:1fr}
}
@media (max-width:767px){
  body{font-size:15px;line-height:1.8}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .trust-row{gap:24px}
  .trust-item:nth-child(1) .num{font-size:34px}
  .trust-item:nth-child(2) .num{font-size:30px}
  .trust-item:nth-child(3) .num{font-size:26px}
  .pain-grid{grid-template-columns:1fr;gap:0}
  .quote-grid{grid-template-columns:1fr}
  .list-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .list-card-desc{-webkit-line-clamp:3}
  .stat-band{grid-template-columns:1fr 1fr}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .stat-band{grid-template-columns:1fr}
  .step-no{flex:0 0 44px;font-size:32px}
}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --bg-deep:#06141E;
  --bg:#081A24;
  --bg-soft:#0D2431;
  --bg-elev:#102C3A;
  --brand:#1FB6A6;
  --brand-2:#2A8FD6;
  --brand-ink:#7FE3D6;
  --glow:#3FE0C6;
  --accent:#F0A85A;
  --text:#E9F4F6;
  --text-2:#A6BEC7;
  --text-3:#6E8894;
  --text-invert:#04141C;
  --line:rgba(126,196,214,.16);
  --line-strong:rgba(126,196,214,.30);
  --glass-bg:linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  --glass-border:rgba(126,196,214,.18);
  --glass-blur:14px;
  --ok:#34C08A;
  --warn:#F0A85A;
  --err:#E2705F;
  --r-card:18px;
  --r-sec:24px;
  --r-btn:12px;
  --s-card:0 10px 30px rgba(0,0,0,.35);
  --s-hover:0 18px 44px rgba(31,182,166,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sidebar-w:240px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background-color:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
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-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}

::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:var(--bg-deep);}
::-webkit-scrollbar-thumb{background:rgba(126,196,214,.22);border-radius:999px;border:2px solid var(--bg-deep);}
::-webkit-scrollbar-thumb:hover{background:rgba(31,182,166,.5);}

.container{max-width:1200px;margin:0 auto;padding:0 32px;}

/* ---------- 左侧竖向导航 ---------- */
.sidebar{
  position:fixed;
  top:0;left:0;
  width:var(--sidebar-w);
  height:100vh;
  display:flex;
  flex-direction:column;
  gap:22px;
  padding:24px 16px 20px;
  background:linear-gradient(180deg,#07161F 0%,#081A24 100%);
  border-right:1px solid var(--line);
  overflow-y:auto;
  z-index:60;
}
.brand{display:flex;align-items:center;gap:12px;}
.brand-mark{
  width:42px;height:42px;flex:none;
  display:grid;place-items:center;
  border-radius:12px;
  background:linear-gradient(140deg,var(--brand),var(--brand-2));
  color:var(--text-invert);
  font-size:18px;font-weight:700;
  box-shadow:0 6px 20px rgba(31,182,166,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.3;}
.brand-text strong{font-size:16px;font-weight:700;letter-spacing:0;}
.brand-text span{font-size:12px;color:var(--text-3);}

.nav{display:flex;flex-direction:column;gap:6px;}
.nav-item{
  position:relative;
  display:flex;align-items:center;gap:10px;
  min-height:44px;
  padding:0 14px;
  border-radius:12px;
  border:1px solid transparent;
  font-size:15px;font-weight:500;
  color:var(--text-2);
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.nav-item::before{
  content:"";
  position:absolute;left:0;top:50%;
  width:3px;height:20px;border-radius:2px;
  background:var(--brand);
  transform:translateY(-50%) scaleY(0);
  transform-origin:center;
  transition:transform .22s var(--ease);
}
.nav-item:hover{background:rgba(255,255,255,.05);color:var(--text);}
.nav-item:hover::before{transform:translateY(-50%) scaleY(1);}
.nav-item[aria-current="page"]{
  background:var(--glass-bg);
  border-color:var(--glass-border);
  color:var(--text);
}
.nav-item[aria-current="page"]::before{transform:translateY(-50%) scaleY(1);}
.nav-item[aria-current="page"] .nav-ico{color:var(--brand-ink);}
.nav-ico{width:20px;height:20px;flex:none;color:inherit;}

.side-divider{height:1px;background:var(--line);}
.side-card{
  margin-top:auto;
  padding:16px;
  border-radius:var(--r-card);
  border:1px solid var(--glass-border);
  background:var(--glass-bg);
  backdrop-filter:blur(var(--glass-blur));
  -webkit-backdrop-filter:blur(var(--glass-blur));
}
.side-card p{font-size:12px;color:var(--text-3);margin-top:10px;line-height:1.6;}

/* ---------- 移动端顶部导航 ---------- */
.mobile-topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;
  height:64px;
  align-items:center;justify-content:space-between;
  padding:0 18px;
  background:rgba(8,26,36,.86);
  backdrop-filter:blur(var(--glass-blur));
  -webkit-backdrop-filter:blur(var(--glass-blur));
  border-bottom:1px solid var(--line);
  z-index:70;
}
.burger{
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:12px;
  border:1px solid var(--glass-border);
  background:var(--glass-bg);
}
.burger span{
  display:block;width:18px;height:2px;border-radius:2px;background:var(--text);
  transition:transform .26s var(--ease),opacity .2s var(--ease);
}
.burger span+span{margin-top:4px;}
.burger.open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.burger.open span:nth-child(2){opacity:0;}
.burger.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.drawer{
  position:fixed;top:0;left:0;
  width:280px;height:100%;
  padding:22px 16px;
  background:#07161F;
  border-right:1px solid var(--line);
  transform:translateX(-100%);
  transition:transform .26s var(--ease);
  z-index:90;
  display:flex;flex-direction:column;gap:20px;
  overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(3,10,14,.72);
  opacity:0;visibility:hidden;
  transition:opacity .26s var(--ease),visibility .26s var(--ease);
  z-index:80;
}
.drawer-mask.show{opacity:1;visibility:visible;}

/* ---------- 主内容区 ---------- */
.page-wrap{margin-left:var(--sidebar-w);}

/* ---------- 文章标题区 ---------- */
.article-hero{
  position:relative;
  overflow:hidden;
  padding:clamp(36px,5vw,64px) 0 clamp(32px,4vw,52px);
  border-bottom:1px solid var(--line);
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center 32%;
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,20,30,.90) 0%,rgba(8,26,36,.94) 62%,var(--bg) 100%);
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(600px 400px at 78% 18%, rgba(31,182,166,.20), transparent 70%);
}
.article-hero .container{position:relative;z-index:2;}

.breadcrumb{margin-bottom:22px;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:var(--text-3);}
.breadcrumb a{color:var(--text-2);transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--brand-ink);}
.breadcrumb .current{color:var(--text-3);}

.article-title{
  max-width:900px;
  font-size:clamp(26px,3.6vw,38px);
  font-weight:700;
  line-height:1.28;
  letter-spacing:-.01em;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:20px;
  padding-top:18px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 10px;
  border-radius:999px;
  font-size:12px;font-weight:500;
  background:rgba(31,182,166,.12);
  color:var(--brand-ink);
}
.badge-accent{
  background:rgba(240,168,90,.14);
  color:#F5C48C;
}
.meta-time{
  font-variant-numeric:tabular-nums;
  color:var(--accent);
}
.meta-sep{width:1px;height:12px;background:var(--line-strong);}

/* ---------- 阅读区 ---------- */
.section{padding:clamp(44px,6vw,72px) 0;}
.reading-col{max-width:760px;margin:0 auto;}

.article-body{font-size:16px;line-height:1.85;color:var(--text-2);}
.article-body>*:first-child{margin-top:0;}
.article-body p{margin:0 0 1.6em;}
.article-body h1,
.article-body h2{
  position:relative;
  margin:2.2em 0 .9em;
  padding-left:14px;
  font-size:clamp(20px,2.4vw,26px);
  font-weight:700;
  line-height:1.35;
  color:var(--text);
}
.article-body h1::before,
.article-body h2::before{
  content:"";position:absolute;left:0;top:.3em;
  width:3px;height:22px;border-radius:2px;background:var(--brand);
}
.article-body h3{margin:1.8em 0 .7em;font-size:18px;font-weight:600;line-height:1.45;color:var(--text);}
.article-body h4{margin:1.5em 0 .6em;font-size:16px;font-weight:600;color:var(--text);}
.article-body strong,.article-body b{color:var(--text);font-weight:600;}
.article-body ul,.article-body ol{margin:0 0 1.6em;}
.article-body ul li{position:relative;padding-left:18px;margin-bottom:8px;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;
  width:6px;height:6px;border-radius:50%;background:var(--brand);
}
.article-body ol{list-style:none;counter-reset:art-ol;}
.article-body ol li{position:relative;padding-left:28px;margin-bottom:8px;counter-increment:art-ol;}
.article-body ol li::before{
  content:counter(art-ol);
  position:absolute;left:0;top:.2em;
  width:20px;height:20px;
  display:grid;place-items:center;
  border-radius:6px;
  font-size:12px;
  font-variant-numeric:tabular-nums;
  background:rgba(31,182,166,.12);
  color:var(--brand-ink);
}
.article-body blockquote{
  margin:1.6em 0;
  padding:20px 22px;
  border-left:3px solid var(--brand);
  border-radius:14px;
  background:var(--glass-bg);
  border-top:1px solid var(--glass-border);
  border-right:1px solid var(--glass-border);
  border-bottom:1px solid var(--glass-border);
  backdrop-filter:blur(var(--glass-blur));
  -webkit-backdrop-filter:blur(var(--glass-blur));
  color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:14px;margin:1.4em 0;}
.article-body figure{margin:1.6em 0;}
.article-body figure img{margin-bottom:8px;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--text-3);}
.article-body a{
  color:var(--brand-ink);
  border-bottom:1px dashed rgba(127,227,214,.55);
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.article-body a:hover{border-bottom-style:solid;border-bottom-color:var(--brand-ink);}
.article-body hr{margin:2.4em 0;border:0;height:1px;background:var(--line);}
.article-body code{
  padding:2px 6px;border-radius:6px;
  background:rgba(126,196,214,.10);
  color:var(--brand-ink);
  font-size:14px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body pre{
  margin:1.6em 0;padding:18px;
  border-radius:14px;
  border:1px solid var(--line);
  background:rgba(6,20,30,.72);
  overflow-x:auto;
}
.article-body pre code{background:none;padding:0;color:var(--text-2);}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:14px;}
.article-body th,.article-body td{padding:10px 12px;border:1px solid var(--line);text-align:left;}
.article-body th{background:rgba(126,196,214,.08);color:var(--text);font-weight:600;}

/* ---------- 内容未找到 ---------- */
.empty-state{
  text-align:center;
  padding:48px 28px;
  border-radius:var(--r-card);
  border:1px solid var(--glass-border);
  background:var(--glass-bg);
  backdrop-filter:blur(var(--glass-blur));
  -webkit-backdrop-filter:blur(var(--glass-blur));
}
.empty-ico{
  width:64px;height:64px;margin:0 auto 18px;
  display:grid;place-items:center;
  border-radius:50%;
  background:rgba(31,182,166,.12);
  color:var(--brand-ink);
}
.empty-ico svg{width:28px;height:28px;}
.empty-state h2{font-size:16px;font-weight:600;color:var(--text);margin-bottom:8px;}
.empty-state p{font-size:14px;color:var(--text-3);margin-bottom:22px;}

/* ---------- 文末导航与 CTA ---------- */
.post-nav{
  display:flex;flex-wrap:wrap;gap:14px;
  margin-top:44px;
  padding-top:28px;
  border-top:1px solid var(--line);
}
.cta-card{
  margin-top:40px;
  padding:32px;
  border-radius:var(--r-sec);
  border:1px solid var(--glass-border);
  background:
    radial-gradient(420px 220px at 88% 12%, rgba(31,182,166,.18), transparent 70%),
    var(--glass-bg);
  backdrop-filter:blur(var(--glass-blur));
  -webkit-backdrop-filter:blur(var(--glass-blur));
  box-shadow:var(--s-card);
  display:flex;flex-wrap:wrap;align-items:center;gap:24px;
  justify-content:space-between;
}
.cta-card h2{font-size:clamp(20px,2.4vw,24px);font-weight:700;color:var(--text);line-height:1.35;}
.cta-card p{margin-top:8px;font-size:14px;color:var(--text-2);max-width:520px;}
.cta-actions{display:flex;flex-direction:column;gap:10px;align-items:flex-start;}
.cta-note{font-size:13px;color:var(--text-3);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  letter-spacing:0;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease),color .24s var(--ease),background .24s var(--ease);
}
.btn svg{width:16px;height:16px;}
.btn-primary{
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-2) 100%);
  color:var(--text-invert);
  box-shadow:0 6px 24px rgba(31,182,166,.35);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(31,182,166,.48);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 16px rgba(31,182,166,.32);}
.btn-ghost{
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  color:var(--text);
  backdrop-filter:blur(var(--glass-blur));
  -webkit-backdrop-filter:blur(var(--glass-blur));
}
.btn-ghost:hover{border-color:rgba(31,182,166,.45);color:var(--brand-ink);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-block{width:100%;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:clamp(48px,7vw,88px);
  border-top:1px solid var(--line);
  background:var(--bg-deep);
  padding:clamp(44px,5vw,64px) 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px 32px;
}
.footer-col h3{
  font-size:14px;font-weight:600;color:var(--text);
  margin-bottom:16px;
  letter-spacing:0;
}
.footer-desc{font-size:13px;color:var(--text-3);line-height:1.8;margin-top:14px;max-width:280px;}
.footer-license{font-size:12px;color:var(--text-3);margin-top:12px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:var(--text-2);transition:color .2s var(--ease),transform .2s var(--ease);}
.footer-links a:hover{color:var(--brand-ink);}
.footer-contact{display:flex;flex-direction:column;gap:12px;}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.6;}
.footer-contact svg{width:18px;height:18px;flex:none;margin-top:3px;color:var(--brand);}
.qr-box{
  width:96px;height:96px;
  border-radius:14px;
  border:1px solid var(--glass-border);
  background:
    radial-gradient(60px 60px at 50% 40%, rgba(31,182,166,.18), transparent 70%),
    var(--glass-bg);
  display:grid;place-items:center;
  color:var(--text-3);
  font-size:12px;
}
.footer-notes{font-size:12px;color:var(--text-3);margin-top:12px;line-height:1.7;}
.footer-bottom{
  margin-top:44px;
  padding:20px 0;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12px;color:var(--text-3);
}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid var(--glass-border);
  background:var(--glass-bg);
  backdrop-filter:blur(var(--glass-blur));
  -webkit-backdrop-filter:blur(var(--glass-blur));
  color:var(--text-2);
  opacity:0;visibility:hidden;
  transform:translateY(10px);
  transition:opacity .26s var(--ease),transform .26s var(--ease),visibility .26s var(--ease),box-shadow .26s var(--ease),color .26s var(--ease);
  z-index:75;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{color:var(--brand-ink);box-shadow:0 6px 24px rgba(31,182,166,.35);}
.to-top svg{width:18px;height:18px;}

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))){
  .glass,.side-card,.cta-card,.empty-state,.btn-ghost,.qr-box,.to-top,.mobile-topbar,.drawer{
    background-color:rgba(13,36,49,.94);
  }
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px) and (min-width:1024px){
  :root{--sidebar-w:200px;}
  .brand-text span{display:none;}
  .nav-item{font-size:14px;padding:0 12px;}
  .container{padding:0 26px;}
}
@media (max-width:1023px){
  .sidebar{display:none;}
  .mobile-topbar{display:flex;}
  .page-wrap{margin-left:0;padding-top:64px;}
  .container{padding:0 22px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  body{font-size:15px;line-height:1.8;}
  .container{padding:0 18px;}
  .article-hero{padding:26px 0 30px;}
  .meta-row{gap:10px;font-size:12.5px;}
  .post-nav{flex-direction:column;}
  .post-nav .btn{width:100%;}
  .cta-card{padding:24px;flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;}
  .to-top{right:16px;bottom:16px;}
}
@media (max-width:520px){
  .article-title{font-size:24px;}
  .article-body{font-size:15px;}
  .btn{padding:0 18px;font-size:14.5px;}
}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
}

/* roulang page: category1 */
:root{
  --bg-deep:#06141E;
  --bg:#081A24;
  --bg-soft:#0D2431;
  --bg-elev:#102C3A;
  --brand:#1FB6A6;
  --brand-2:#2A8FD6;
  --brand-ink:#7FE3D6;
  --glow:#3FE0C6;
  --accent:#F0A85A;
  --accent-soft:#F5C48C;
  --text:#E9F4F6;
  --text-2:#A6BEC7;
  --text-3:#6E8894;
  --text-invert:#04141C;
  --line:rgba(126,196,214,.16);
  --line-strong:rgba(126,196,214,.30);
  --glass-bg:linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  --glass-border:rgba(126,196,214,.18);
  --glass-blur:14px;
  --ok:#34C08A;
  --warn:#F0A85A;
  --err:#E2705F;
  --r-card:18px;
  --r-block:24px;
  --r-btn:12px;
  --r-img:14px;
  --sh-card:0 10px 30px rgba(0,0,0,.35);
  --sh-hover:0 18px 44px rgba(31,182,166,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sidebar-w:240px;
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(126,196,214,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(126,196,214,.05) 1px, transparent 1px);
  background-size:48px 48px;
  opacity:.55;
}

a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1.2em}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text)}
h1{letter-spacing:-.01em}

:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#06121A}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,#1FB6A6,#2A8FD6);border-radius:8px;border:2px solid #06121A}

/* ---------- 容器与布局 ---------- */
.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}

.page{
  margin-left:var(--sidebar-w);
  position:relative;
  z-index:1;
  min-height:100vh;
  display:flex;
  flex-direction:column;
}

/* ---------- 侧栏 ---------- */
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  padding:26px 18px 24px;
  background:linear-gradient(180deg,#0A1F2B 0%,#081A24 55%,#06141E 100%);
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  gap:22px;
  overflow-y:auto;
  z-index:40;
}

.brand{
  display:flex;
  align-items:center;
  gap:12px;
}

.brand-mark{
  width:38px;height:38px;
  flex:0 0 38px;
  border-radius:11px;
  background:linear-gradient(140deg,var(--brand),var(--brand-2));
  box-shadow:0 0 0 1px rgba(127,227,214,.35), 0 6px 20px rgba(31,182,166,.45);
  position:relative;
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:10px;
  border-radius:4px;
  border:2px solid rgba(4,20,28,.75);
  border-right-color:transparent;
  border-bottom-color:transparent;
  transform:rotate(-45deg);
}

.brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.brand-text strong{font-size:16px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.brand-text small{font-size:11px;color:var(--text-3);letter-spacing:.02em}

.nav{display:flex;flex-direction:column;gap:4px}

.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:10px;
  min-height:44px;
  padding:0 14px;
  border-radius:12px;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  transition:background .24s var(--ease), color .24s var(--ease), transform .24s var(--ease);
}
.nav-item::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  width:3px;height:0;
  border-radius:3px;
  background:var(--brand);
  transform:translateY(-50%);
  transition:height .24s var(--ease);
}
.nav-item:hover{background:rgba(255,255,255,.05);color:var(--text)}
.nav-item:hover::before{height:20px}
.nav-item[aria-current="page"]{
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  color:var(--text);
}
.nav-item[aria-current="page"]::before{height:22px}
.nav-item[aria-current="page"] .nav-ico{color:var(--brand-ink)}
.nav-ico{width:20px;height:20px;flex:0 0 20px;color:var(--text-3);transition:color .24s var(--ease)}

.side-sep{height:1px;background:var(--line);margin:2px 0}

.side-meta{font-size:12px;color:var(--text-3);line-height:1.7}

.side-cta{
  margin-top:auto;
  padding:16px;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.side-cta p{font-size:12px;color:var(--text-3);margin:0;line-height:1.6}

/* ---------- 玻璃卡 ---------- */
.glass{
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:var(--r-card);
  backdrop-filter:blur(var(--glass-blur));
  -webkit-backdrop-filter:blur(var(--glass-blur));
}

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))){
  .glass{background:linear-gradient(160deg, rgba(16,44,58,.94), rgba(13,36,49,.9))}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:12px 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  transition:transform .24s var(--ease), box-shadow .24s var(--ease), background .24s var(--ease), border-color .24s var(--ease), color .24s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:var(--text-invert);
  box-shadow:0 6px 24px rgba(31,182,166,.35);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(31,182,166,.5)}
.btn-primary:active{transform:translateY(0) scale(.99);box-shadow:0 4px 14px rgba(31,182,166,.32)}
.btn-ghost{
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  color:var(--text);
  backdrop-filter:blur(var(--glass-blur));
  -webkit-backdrop-filter:blur(var(--glass-blur));
}
.btn-ghost:hover{transform:translateY(-2px);border-color:rgba(31,182,166,.5);box-shadow:0 10px 26px rgba(31,182,166,.18)}
.btn-ghost:active{transform:translateY(0) scale(.99)}
.btn-block{width:100%}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:500;
  background:rgba(31,182,166,.12);
  color:var(--brand-ink);
  border:1px solid rgba(31,182,166,.22);
  white-space:nowrap;
}
.badge-accent{
  background:rgba(240,168,90,.14);
  color:var(--accent-soft);
  border-color:rgba(240,168,90,.26);
}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;
  overflow:hidden;
  background:var(--bg-deep);
  border-bottom:1px solid var(--line);
}
.hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  opacity:.3;
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(180deg, rgba(6,20,30,.88) 0%, rgba(8,26,36,.66) 60%, rgba(8,26,36,.92) 100%),
    radial-gradient(600px 400px at 78% 18%, rgba(31,182,166,.20), transparent 70%);
}

.hero-inner{
  position:relative;
  z-index:2;
  padding-top:clamp(36px,5vw,56px);
  padding-bottom:clamp(56px,7vw,92px);
}

.crumb{margin-bottom:22px}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:var(--text-3)}
.crumb a{color:var(--text-2);transition:color .2s var(--ease)}
.crumb a:hover{color:var(--brand-ink)}
.crumb li[aria-current="page"]{color:var(--text-3)}

.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:40px;
  align-items:center;
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--brand-ink);
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:3px;background:var(--brand);display:inline-block}

.hero-title{
  font-size:clamp(28px,4.2vw,46px);
  line-height:1.24;
  font-weight:700;
  margin-bottom:18px;
}

.hero-sub{
  font-size:16px;
  line-height:1.85;
  color:var(--text-2);
  max-width:660px;
  margin-bottom:28px;
}

.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}

.trust{
  display:flex;
  flex-wrap:wrap;
  gap:34px;
  padding-top:22px;
  border-top:1px solid var(--line);
}
.trust li{display:flex;flex-direction:column;gap:2px}
.trust b{
  font-size:24px;
  font-weight:700;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.trust li:nth-child(2) b{font-size:21px}
.trust li:nth-child(3) b{font-size:19px}
.trust span{font-size:12px;color:var(--text-3)}

.hero-card{
  padding:18px;
  box-shadow:var(--sh-card);
}
.hero-card img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-img);
  margin-bottom:16px;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
}
.check-list{display:flex;flex-direction:column;gap:10px}
.check-list li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:14px;
  line-height:1.7;
  color:var(--text-2);
}
.check-list svg{width:18px;height:18px;flex:0 0 18px;margin-top:4px;color:var(--brand)}

/* ---------- 区块通用 ---------- */
.section{padding:clamp(56px,8vw,112px) 0}
.section-deep{background:var(--bg-deep)}
.section-soft{background:var(--bg-soft)}

.sec-head{max-width:760px;margin-bottom:clamp(28px,3.5vw,44px)}
.sec-title{
  position:relative;
  font-size:clamp(22px,3vw,32px);
  line-height:1.3;
  padding-left:18px;
  margin-bottom:12px;
}
.sec-title::before{
  content:"";
  position:absolute;
  left:0;top:.28em;
  width:3px;height:22px;
  border-radius:3px;
  background:var(--brand);
}
.sec-lead{font-size:15px;color:var(--text-2);max-width:700px;margin:0}

/* ---------- 交替长卡 ---------- */
.alt-list{display:flex;flex-direction:column;gap:32px}

.alt-card{
  display:grid;
  grid-template-columns:44% minmax(0,1fr);
  gap:32px;
  align-items:center;
  padding:22px;
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:var(--r-card);
  backdrop-filter:blur(var(--glass-blur));
  -webkit-backdrop-filter:blur(var(--glass-blur));
  box-shadow:var(--sh-card);
  transition:transform .26s var(--ease), border-color .26s var(--ease), box-shadow .26s var(--ease);
}
.alt-card:hover{transform:translateY(-4px);border-color:rgba(31,182,166,.42);box-shadow:var(--sh-hover)}
.alt-card:nth-child(even){grid-template-columns:minmax(0,1fr) 44%}
.alt-card:nth-child(even) .alt-media{order:2}

.alt-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-img);
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  transition:transform .32s var(--ease);
}
.alt-card:hover .alt-media img{transform:scale(1.03)}

.alt-body .badge{margin-bottom:12px}
.alt-body h3{
  font-size:19px;
  line-height:1.45;
  font-weight:600;
  margin-bottom:10px;
}
.alt-body p{
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
  margin-bottom:14px;
}

.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:500;
  color:var(--brand-ink);
  transition:color .2s var(--ease);
}
.text-link .arrow{transition:transform .24s var(--ease);display:inline-block}
.text-link:hover{color:var(--glow)}
.text-link:hover .arrow{transform:translateX(4px)}

/* ---------- 成果带 ---------- */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  padding:30px 28px;
  box-shadow:var(--sh-card);
}
.stat-strip li{display:flex;flex-direction:column;gap:6px}
.stat-strip b{
  font-size:clamp(24px,2.6vw,32px);
  font-weight:700;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.stat-strip b em{font-style:normal;font-size:14px;color:var(--text-3);margin-left:4px;font-weight:400}
.stat-strip span{font-size:13px;color:var(--text-3);line-height:1.6}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item h3{margin:0}
.faq-q{
  width:100%;
  min-height:56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:14px 4px;
  text-align:left;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--brand-ink)}
.faq-icon{
  width:26px;height:26px;
  flex:0 0 26px;
  border-radius:50%;
  border:1px solid var(--line-strong);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  line-height:1;
  color:var(--brand-ink);
  transition:transform .28s var(--ease), border-color .24s var(--ease), background .24s var(--ease);
}
.faq-item.is-open .faq-icon{
  transform:rotate(45deg);
  background:rgba(31,182,166,.14);
  border-color:rgba(31,182,166,.5);
}
.faq-a{display:none;padding:0 4px 20px;max-width:760px}
.faq-item.is-open .faq-a{display:block;animation:fadeUp .3s var(--ease) both}
.faq-a p{font-size:15px;line-height:1.8;color:var(--text-2);margin:0}

@keyframes fadeUp{
  from{opacity:0;transform:translateY(8px)}
  to{opacity:1;transform:translateY(0)}
}

/* ---------- CTA ---------- */
.cta-card{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-block);
  padding:clamp(28px,4vw,46px);
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:28px;
  align-items:center;
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  backdrop-filter:blur(var(--glass-blur));
  -webkit-backdrop-filter:blur(var(--glass-blur));
  box-shadow:var(--sh-card);
}
.cta-card::before{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(420px 260px at 12% 20%, rgba(31,182,166,.20), transparent 70%);
  pointer-events:none;
}
.cta-card > *{position:relative}
.cta-card h2{
  font-size:clamp(22px,2.8vw,30px);
  line-height:1.3;
  margin-bottom:10px;
}
.cta-card p{font-size:15px;color:var(--text-2);margin:0;max-width:620px}
.cta-actions{display:flex;flex-direction:column;gap:10px;align-items:flex-end}
.cta-actions .meta{font-size:13px;color:var(--text-3);white-space:nowrap}

/* ---------- 页脚 ---------- */
.footer{
  margin-top:auto;
  background:var(--bg-deep);
  border-top:1px solid var(--line);
  padding:clamp(40px,5vw,64px) 0 24px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:32px;
  padding-bottom:36px;
}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  margin-bottom:16px;
}
.footer-col p{font-size:13px;color:var(--text-3);line-height:1.8;max-width:320px}

.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-brand .brand-text strong{font-size:17px}

.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{
  font-size:14px;
  color:var(--text-2);
  transition:color .2s var(--ease), transform .2s var(--ease);
  display:inline-flex;
  align-items:center;
  min-height:24px;
}
.footer-links a:hover{color:var(--brand-ink);transform:translateX(3px)}

.contact-list{display:flex;flex-direction:column;gap:12px}
.contact-list li{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--text-2);line-height:1.7}
.contact-list svg{width:16px;height:16px;flex:0 0 16px;margin-top:4px;color:var(--brand)}

.qr{
  width:96px;height:96px;
  border-radius:12px;
  border:1px dashed var(--line-strong);
  background:linear-gradient(140deg, rgba(31,182,166,.14), rgba(42,143,214,.10));
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:11px;
  color:var(--brand-ink);
  text-align:center;
  line-height:1.5;
  padding:8px;
  margin-bottom:10px;
}
.qr-note{font-size:12px;color:var(--text-3)}

.footer-bottom{
  border-top:1px solid var(--line);
  padding-top:18px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:12px;
  color:var(--text-3);
}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;
  right:24px;
  bottom:24px;
  width:44px;height:44px;
  border-radius:50%;
  display:none;
  align-items:center;
  justify-content:center;
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  backdrop-filter:blur(var(--glass-blur));
  -webkit-backdrop-filter:blur(var(--glass-blur));
  color:var(--brand-ink);
  box-shadow:var(--sh-card);
  z-index:60;
  transition:transform .24s var(--ease), box-shadow .24s var(--ease), border-color .24s var(--ease);
}
.to-top.is-visible{display:flex}
.to-top:hover{transform:translateY(-3px);border-color:rgba(31,182,166,.5);box-shadow:0 0 22px rgba(31,182,166,.45)}
.to-top svg{width:20px;height:20px}

/* ---------- 移动端顶栏 / 抽屉 ---------- */
.topbar{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  height:64px;
  padding:0 18px;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  background:rgba(8,26,36,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  z-index:50;
  transition:border-color .24s var(--ease);
}
.topbar.is-scrolled{border-bottom-color:var(--line)}

.burger{
  width:44px;height:44px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  border-radius:12px;
  border:1px solid var(--glass-border);
  background:var(--glass-bg);
}
.burger span{
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--text);
  transition:transform .26s var(--ease), opacity .2s var(--ease);
}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(3,10,14,.72);
  opacity:0;
  visibility:hidden;
  transition:opacity .26s var(--ease), visibility .26s var(--ease);
  z-index:55;
}
.drawer-mask.is-open{opacity:1;visibility:visible}

.drawer{
  position:fixed;
  top:0;left:0;bottom:0;
  width:280px;
  max-width:86vw;
  padding:24px 18px;
  background:linear-gradient(180deg,#0A1F2B,#06141E);
  border-right:1px solid var(--line);
  transform:translateX(-100%);
  transition:transform .26s var(--ease);
  z-index:56;
  display:flex;
  flex-direction:column;
  gap:20px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer .btn{margin-top:auto}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--sidebar-w:200px}
  .wrap{padding:0 26px}
  .brand-text small{display:none}
  .nav-item{font-size:14px;padding:0 12px}
}

@media (max-width:1023px){
  .sidebar{display:none}
  .topbar{display:flex}
  .page{margin-left:0;padding-top:64px}
  .wrap{padding:0 22px}
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .hero-card{order:2}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .cta-card{grid-template-columns:1fr}
  .cta-actions{align-items:flex-start}
  .cta-actions .meta{white-space:normal}
}

@media (max-width:768px){
  body{font-size:15px;line-height:1.8}
  .wrap{padding:0 18px}
  .hero-inner{padding-top:26px;padding-bottom:56px}
  .hero-actions{gap:12px}
  .hero-actions .btn{width:100%}
  .trust{gap:22px;padding-top:18px}
  .trust b{font-size:20px}
  .trust li:nth-child(2) b{font-size:18px}
  .trust li:nth-child(3) b{font-size:17px}
  .alt-card,
  .alt-card:nth-child(even){grid-template-columns:1fr;gap:18px;padding:18px}
  .alt-card .alt-media{order:1}
  .alt-card .alt-body{order:2}
  .alt-media img{aspect-ratio:16/9}
  .alt-card:hover{transform:none}
  .stat-strip{grid-template-columns:1fr;padding:24px 20px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .faq-q{font-size:15px}
  .footer-bottom{justify-content:flex-start}
}

@media (max-width:520px){
  .hero-title{font-size:clamp(26px,7.4vw,32px)}
  .sec-title{font-size:22px;padding-left:14px}
  .sec-title::before{height:18px}
  .alt-body h3{font-size:17px}
  .btn{padding:12px 18px;font-size:14px}
  .badge{font-size:11px}
  .to-top{right:16px;bottom:16px}
}

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

/* roulang page: category2 */
:root{
  --bg-deep:#06141E; --bg:#081A24; --bg-soft:#0D2431; --bg-elev:#102C3A;
  --brand:#1FB6A6; --brand-2:#2A8FD6; --brand-ink:#7FE3D6; --glow:#3FE0C6;
  --accent:#F0A85A; --accent-soft:#F5C48C;
  --text:#E9F4F6; --text-2:#A6BEC7; --text-3:#6E8894; --text-invert:#04141C;
  --line:rgba(126,196,214,.16); --line-strong:rgba(126,196,214,.30);
  --glass-bg:linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  --glass-border:rgba(126,196,214,.18); --glass-blur:14px;
  --ok:#34C08A; --warn:#F0A85A; --err:#E2705F;
  --r-card:18px; --r-block:24px; --r-btn:12px; --r-img:14px;
  --side-w:240px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow-card:0 10px 30px rgba(0,0,0,.35);
  --shadow-hover:0 18px 44px rgba(31,182,166,.18);
  --shadow-glow:0 6px 24px rgba(31,182,166,.35);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body.lock{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
button,input,textarea,select{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700}
p{margin:0}
svg{display:block}
::selection{background:rgba(31,182,166,.35);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:8px}

::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#06141E}
::-webkit-scrollbar-thumb{background:rgba(126,196,214,.22);border-radius:8px;border:2px solid #06141E}
::-webkit-scrollbar-thumb:hover{background:rgba(31,182,166,.5)}

@supports not ((-webkit-backdrop-filter:blur(1px)) or (backdrop-filter:blur(1px))){
  .topbar,.side-cta,.cap-card,.stat-band,.cta-card,.chip{background:rgba(13,36,49,.94)!important}
}

/* ------- layout ------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.main{margin-left:var(--side-w);min-height:100vh;position:relative;z-index:1}
.block{padding:clamp(56px,8vw,104px) 0}
.block-tight{padding:clamp(36px,5vw,64px) 0}
.sec-head{margin-bottom:clamp(24px,3.5vw,40px);max-width:760px}
.sec-head h2{display:flex;align-items:center;gap:12px;font-size:clamp(22px,3vw,32px);line-height:1.3}
.sec-head h2::before{content:"";width:3px;height:22px;border-radius:2px;background:linear-gradient(180deg,var(--brand-ink),var(--brand));flex:none;box-shadow:0 0 12px rgba(63,224,198,.5)}
.sec-head p{margin-top:14px;font-size:15px;color:var(--text-2);max-width:700px}

/* ------- brand mark ------- */
.brand{display:flex;align-items:center;gap:12px;padding:4px 6px 16px}
.brand-mark{
  width:42px;height:42px;flex:none;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(150deg,var(--brand),var(--brand-2));
  color:var(--text-invert);font-weight:800;font-size:18px;letter-spacing:0;
  box-shadow:0 0 22px rgba(63,224,198,.42), inset 0 1px 0 rgba(255,255,255,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:16px;font-weight:700;color:var(--text);letter-spacing:-.01em}
.brand-text span{font-size:12px;color:var(--text-3);margin-top:2px}

/* ------- sidebar ------- */
.sidebar{
  position:fixed;inset:0 auto 0 0;width:var(--side-w);z-index:80;
  display:flex;flex-direction:column;
  padding:22px 16px 18px;
  background:linear-gradient(180deg,#0A1E29 0%,#06141E 100%);
  border-right:1px solid var(--line);
  overflow-y:auto;overscroll-behavior:contain;
}
.sidebar::-webkit-scrollbar{width:6px}
.nav{display:flex;flex-direction:column;gap:4px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 14px;border-radius:12px;
  font-size:15px;font-weight:500;color:var(--text-2);
  border:1px solid transparent;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.nav-item::before{
  content:"";position:absolute;left:0;top:50%;
  width:3px;height:22px;border-radius:0 3px 3px 0;background:var(--brand);
  opacity:0;transform:translateY(-50%) scaleY(.2);
  transition:opacity .24s var(--ease),transform .24s var(--ease);
}
.nav-item:hover{background:rgba(255,255,255,.05);color:var(--text)}
.nav-item:hover::before{opacity:.55;transform:translateY(-50%) scaleY(1)}
.nav-item[aria-current="page"]{background:var(--glass-bg);border-color:var(--glass-border);color:var(--text)}
.nav-item[aria-current="page"]::before{opacity:1;transform:translateY(-50%) scaleY(1)}
.nav-ico{width:20px;height:20px;flex:none;color:var(--text-3);transition:color .24s var(--ease)}
.nav-item:hover .nav-ico,.nav-item[aria-current="page"] .nav-ico{color:var(--brand-ink)}

.side-cta{
  margin-top:auto;padding:16px;border-radius:16px;
  background:var(--glass-bg);border:1px solid var(--glass-border);
  -webkit-backdrop-filter:blur(var(--glass-blur));backdrop-filter:blur(var(--glass-blur));
}
.side-cta .side-note{margin-top:10px;font-size:12px;line-height:1.6;color:var(--text-3)}

/* ------- buttons ------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease),border-color .24s var(--ease),color .24s var(--ease);
}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:var(--text-invert);box-shadow:var(--shadow-glow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(31,182,166,.5);color:var(--text-invert)}
.btn-primary:active{transform:translateY(0) scale(.985)}
.btn-ghost{background:var(--glass-bg);border:1px solid var(--line-strong);color:var(--text);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}
.btn-ghost:hover{transform:translateY(-2px);border-color:rgba(31,182,166,.5);color:var(--brand-ink)}
.btn-ghost:active{transform:translateY(0) scale(.985)}
.btn-full{width:100%}
.btn-sm{min-height:38px;font-size:14px;padding:0 16px}

/* ------- topbar / drawer ------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:64px;z-index:60;
  align-items:center;justify-content:space-between;padding:0 18px;
  background:rgba(8,26,36,.78);
  -webkit-backdrop-filter:blur(var(--glass-blur));backdrop-filter:blur(var(--glass-blur));
  border-bottom:1px solid var(--line);
}
.topbar .brand{padding:0}
.topbar .brand-mark{width:34px;height:34px;border-radius:10px;font-size:15px}
.topbar .brand-text strong{font-size:15px}
.topbar .brand-text span{display:none}
.burger{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  transition:border-color .24s var(--ease),background .24s var(--ease);
}
.burger:hover{border-color:rgba(31,182,166,.5);background:rgba(255,255,255,.04)}
.burger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--text);transition:transform .26s var(--ease),opacity .2s var(--ease)}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.scrim{
  position:fixed;inset:0;z-index:70;background:rgba(3,10,14,.72);
  opacity:0;visibility:hidden;transition:opacity .26s var(--ease),visibility .26s var(--ease);
}
.scrim.show{opacity:1;visibility:visible}

/* ------- page head ------- */
.page-head{
  position:relative;overflow:hidden;
  padding:clamp(36px,5vw,60px) 0 clamp(34px,4.5vw,52px);
  background:var(--bg-deep);
  border-bottom:1px solid var(--line);
}
.page-head-bg{position:absolute;inset:0;background:url("/assets/images/backpic/back-2.png") center/cover no-repeat;opacity:.22}
.page-head-veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,20,30,.90),rgba(8,26,36,.96)),
             radial-gradient(620px 380px at 78% 10%,rgba(31,182,166,.22),transparent 70%);
}
.page-head-grid{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(126,196,214,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(126,196,214,.05) 1px,transparent 1px);
  background-size:48px 48px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent);
}
.page-head .container{position:relative;z-index:2}

.crumb{font-size:13px;color:var(--text-3)}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb a:hover{color:var(--brand-ink)}
.crumb .sep{color:var(--text-3);opacity:.55}
.crumb [aria-current="page"]{color:var(--text-3)}

.page-head h1{
  margin-top:18px;
  font-size:clamp(28px,4.2vw,46px);font-weight:700;line-height:1.24;letter-spacing:-.01em;
}
.lede{margin-top:14px;font-size:16px;line-height:1.8;color:var(--text-2);max-width:680px}

.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:clamp(22px,3vw,32px)}
.chip{
  display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:999px;
  font-size:14px;font-weight:500;color:var(--text-2);
  background:var(--glass-bg);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  transition:border-color .24s var(--ease),color .24s var(--ease);
}
.chip:hover{border-color:rgba(31,182,166,.45);color:var(--text)}
.chip.is-active{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  border-color:transparent;color:var(--text-invert);font-weight:600;
  box-shadow:0 6px 20px rgba(31,182,166,.3);
}

/* ------- capability grid ------- */
.cap-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.cap-card{
  position:relative;display:flex;flex-direction:column;gap:12px;
  padding:22px;border-radius:var(--r-card);
  background:var(--glass-bg);border:1px solid var(--glass-border);
  -webkit-backdrop-filter:blur(var(--glass-blur));backdrop-filter:blur(var(--glass-blur));
  box-shadow:var(--shadow-card);
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.cap-card:hover{transform:translateY(-4px);border-color:rgba(31,182,166,.45);box-shadow:var(--shadow-hover)}
.cap-ico{
  width:48px;height:48px;border-radius:14px;flex:none;
  display:grid;place-items:center;color:var(--brand-ink);
  background:rgba(31,182,166,.12);border:1px solid rgba(31,182,166,.18);
}
.cap-ico svg{width:24px;height:24px}
.cap-card h3{font-size:17px;font-weight:600;line-height:1.45}
.cap-card p{
  font-size:14px;line-height:1.8;color:var(--text-3);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.cap-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:6px}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:999px;
  font-size:12px;font-weight:500;
  background:rgba(31,182,166,.12);color:var(--brand-ink);
}
.tag-amber{background:rgba(240,168,90,.14);color:var(--accent-soft)}

/* ------- stat band ------- */
.stat-band{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;
  padding:clamp(24px,3vw,36px);border-radius:var(--r-block);
  background:var(--glass-bg);border:1px solid var(--glass-border);
  -webkit-backdrop-filter:blur(var(--glass-blur));backdrop-filter:blur(var(--glass-blur));
  box-shadow:var(--shadow-card);
}
.stat{position:relative;padding-left:18px}
.stat::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:2px;background:linear-gradient(180deg,var(--brand-ink),transparent)}
.stat-num{
  font-size:clamp(30px,4vw,44px);font-weight:800;line-height:1.1;
  color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.stat-num small{font-size:14px;font-weight:500;color:var(--text-3);margin-left:6px;letter-spacing:.01em}
.stat p{margin-top:6px;font-size:14px;color:var(--text-2)}

/* ------- cta ------- */
.cta-card{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  padding:clamp(28px,4vw,48px);border-radius:var(--r-block);
  background:var(--glass-bg);border:1px solid var(--glass-border);
  -webkit-backdrop-filter:blur(var(--glass-blur));backdrop-filter:blur(var(--glass-blur));
  box-shadow:var(--shadow-card);
}
.cta-card::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(520px 300px at 88% 8%,rgba(31,182,166,.22),transparent 68%);
  pointer-events:none;
}
.cta-card>*{position:relative;z-index:1}
.cta-copy{max-width:640px}
.cta-copy h2{font-size:clamp(22px,3vw,30px);line-height:1.3}
.cta-copy p{margin-top:12px;font-size:15px;color:var(--text-2)}
.cta-contact{margin-top:16px;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ------- footer ------- */
.footer{border-top:1px solid var(--line);background:var(--bg-deep);margin-top:clamp(24px,4vw,48px)}
.foot-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1.3fr 1fr;gap:40px;
  padding:clamp(40px,5vw,64px) 0 clamp(28px,3.5vw,40px);
}
.foot-brand .brand{padding:0 0 16px}
.foot-brand p{font-size:14px;line-height:1.85;color:var(--text-3);max-width:340px}
.foot-icp{margin-top:14px;font-size:12px;color:var(--text-3);opacity:.85}
.foot-col h4{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--text)}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col li{font-size:14px;color:var(--text-3)}
.foot-col a{color:var(--text-2)}
.foot-col a:hover{color:var(--brand-ink)}
.foot-contact li{display:flex;align-items:flex-start;gap:10px;line-height:1.6}
.foot-contact svg{width:18px;height:18px;flex:none;margin-top:4px;color:var(--brand-ink)}
.qr{
  width:96px;height:96px;border-radius:14px;border:1px dashed var(--line-strong);
  background:rgba(255,255,255,.04);display:grid;place-items:center;
  font-size:12px;color:var(--text-3);letter-spacing:.06em;
}
.foot-tip{margin-top:12px;font-size:12px;line-height:1.7;color:var(--text-3);max-width:180px}
.foot-bar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid var(--line);
  font-size:12px;color:var(--text-3);
}

/* ------- to top ------- */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:50;
  width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--glass-bg);border:1px solid var(--glass-border);
  -webkit-backdrop-filter:blur(var(--glass-blur));backdrop-filter:blur(var(--glass-blur));
  color:var(--text-2);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s var(--ease),color .24s var(--ease),box-shadow .24s var(--ease);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{color:var(--brand-ink);box-shadow:0 0 22px rgba(63,224,198,.35);border-color:rgba(31,182,166,.5)}

/* ------- responsive ------- */
@media (max-width:1279px){
  :root{--side-w:200px}
  .cap-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-grid{grid-template-columns:1.4fr 1fr 1.2fr;gap:32px}
  .foot-col:last-child{grid-column:1 / -1}
}
@media (max-width:1023px){
  .topbar{display:flex}
  .sidebar{width:280px;transform:translateX(-100%);box-shadow:0 0 60px rgba(0,0,0,.6);transition:transform .26s var(--ease)}
  .sidebar.open{transform:translateX(0)}
  .main{margin-left:0;padding-top:64px}
  .container{padding:0 24px}
  .cta-card{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
}
@media (max-width:767px){
  .container{padding:0 20px}
  body{font-size:15px;line-height:1.8}
  .block{padding:clamp(48px,10vw,72px) 0}
  .cap-grid{grid-template-columns:1fr;gap:18px}
  .cap-card p{-webkit-line-clamp:3}
  .stat-band{grid-template-columns:1fr;gap:20px}
  .stat{display:flex;align-items:baseline;gap:14px;padding-left:16px}
  .stat p{margin-top:0}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
  .foot-brand{grid-column:1 / -1}
  .foot-col:last-child{grid-column:1 / -1}
  .foot-brand p{max-width:none}
  .cta-actions .btn{width:100%}
  .to-top{right:16px;bottom:16px}
}
@media (max-width:520px){
  .foot-grid{grid-template-columns:1fr}
  .chips{gap:8px}
  .chip{height:34px;padding:0 14px;font-size:13px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}

/* roulang page: category3 */
:root{
  --bg-deep:#06141E;
  --bg:#081A24;
  --bg-soft:#0D2431;
  --bg-elev:#102C3A;
  --brand:#1FB6A6;
  --brand-2:#2A8FD6;
  --brand-ink:#7FE3D6;
  --glow:#3FE0C6;
  --accent:#F0A85A;
  --text:#E9F4F6;
  --text-2:#A6BEC7;
  --text-3:#6E8894;
  --text-invert:#04141C;
  --line:rgba(126,196,214,.16);
  --line-strong:rgba(126,196,214,.30);
  --glass-bg:linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  --glass-border:rgba(126,196,214,.18);
  --glass-blur:14px;
  --ok:#34C08A;
  --warn:#F0A85A;
  --err:#E2705F;
  --radius-card:18px;
  --radius-block:24px;
  --radius-btn:12px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --sidebar-w:240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  background:var(--bg);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand-ink);text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--glow)}
ul,ol{list-style:none;margin:0;padding:0}
p{margin:0}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
::selection{background:rgba(31,182,166,.32);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg-deep)}
::-webkit-scrollbar-thumb{background:rgba(126,196,214,.22);border-radius:8px}
::-webkit-scrollbar-thumb:hover{background:rgba(31,182,166,.45)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:clamp(56px,8vw,112px) 0}
.section-tight{padding:clamp(40px,5vw,72px) 0}

/* ---------- 侧栏导航 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);z-index:90;
  display:flex;flex-direction:column;gap:20px;
  padding:22px 16px 24px;overflow-y:auto;
  background:linear-gradient(180deg, rgba(6,20,30,.98), rgba(8,26,36,.94));
  border-right:1px solid var(--line);
  backdrop-filter:blur(var(--glass-blur));
  -webkit-backdrop-filter:blur(var(--glass-blur));
}
@supports not (backdrop-filter: blur(1px)){
  .sidebar{background:#06141E}
  .glass,.btn-ghost,.cta-band,.side-cta{background:#102C3A}
  .topbar{background:#081A24}
}
.brand{display:flex;align-items:center;gap:12px;padding:0 6px}
.brand-mark{
  width:44px;height:44px;flex:0 0 44px;border-radius:13px;
  display:grid;place-items:center;
  background:linear-gradient(150deg,var(--brand),var(--brand-2));
  color:var(--text-invert);font-weight:800;font-size:17px;line-height:1;
  box-shadow:0 6px 24px rgba(31,182,166,.35);
}
.brand-text{min-width:0}
.brand-name{font-size:16px;font-weight:700;color:var(--text);line-height:1.3;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-sub{font-size:12px;color:var(--text-3);line-height:1.5;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.side-sep{height:1px;background:var(--line);margin:2px 6px}
.nav{display:flex;flex-direction:column;gap:4px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:10px;height:44px;
  padding:0 14px;border-radius:12px;font-size:15px;font-weight:500;
  color:var(--text-2);text-decoration:none;
  transition:background .22s var(--ease),color .22s var(--ease);
}
.nav-item::before{
  content:"";position:absolute;left:0;top:50%;width:3px;height:20px;border-radius:3px;
  background:var(--brand);transform:translateY(-50%) scaleY(0);
  transition:transform .22s var(--ease);
}
.nav-item:hover{background:rgba(255,255,255,.05);color:var(--text)}
.nav-item:hover::before{transform:translateY(-50%) scaleY(1)}
.nav-item[aria-current="page"]{
  background:var(--glass-bg);border:1px solid var(--glass-border);
  color:var(--text);box-shadow:inset 0 0 0 1px rgba(31,182,166,.06);
}
.nav-item[aria-current="page"]::before{transform:translateY(-50%) scaleY(1)}
.nav-item[aria-current="page"] .nav-ico{color:var(--brand-ink)}
.nav-ico{width:20px;height:20px;flex:0 0 20px;color:var(--text-3);transition:color .22s var(--ease)}
.side-cta{
  margin-top:auto;padding:16px;border-radius:16px;
  background:var(--glass-bg);border:1px solid var(--glass-border);
  backdrop-filter:blur(var(--glass-blur));
}
.side-cta p{font-size:12px;color:var(--text-3);margin-top:10px;line-height:1.6;text-align:center}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:64px;z-index:70;
  align-items:center;justify-content:space-between;gap:12px;padding:0 16px;
  background:rgba(8,26,36,.88);
  backdrop-filter:blur(var(--glass-blur));
  -webkit-backdrop-filter:blur(var(--glass-blur));
  border-bottom:1px solid transparent;
  transition:border-color .25s var(--ease);
}
.topbar.scrolled{border-bottom-color:var(--line)}
.burger{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--glass-border);background:var(--glass-bg);color:var(--text);
}
.burger svg{width:22px;height:22px}
.drawer-mask{
  position:fixed;inset:0;z-index:80;background:rgba(3,10,14,.72);
  opacity:0;visibility:hidden;
  transition:opacity .26s var(--ease),visibility .26s var(--ease);
}
.drawer-mask.open{opacity:1;visibility:visible}

/* ---------- 主体 ---------- */
.main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
.main > .page-body{flex:1 0 auto}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;text-decoration:none;white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:var(--text-invert);
  box-shadow:0 6px 24px rgba(31,182,166,.35);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(31,182,166,.45);color:var(--text-invert)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 14px rgba(31,182,166,.30)}
.btn-ghost{
  background:var(--glass-bg);border:1px solid var(--glass-border);color:var(--text);
  backdrop-filter:blur(var(--glass-blur));
}
.btn-ghost:hover{border-color:rgba(31,182,166,.45);color:var(--brand-ink);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-block{width:100%}
.btn-sm{height:42px;padding:0 16px;font-size:14px}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;
  color:var(--brand-ink);text-decoration:none;
}
.link-arrow svg{width:16px;height:16px;transition:transform .22s var(--ease)}
.link-arrow:hover svg{transform:translateX(4px)}

/* ---------- 玻璃与卡片 ---------- */
.glass{
  background:var(--glass-bg);border:1px solid var(--glass-border);
  border-radius:var(--radius-card);
  backdrop-filter:blur(var(--glass-blur));
  -webkit-backdrop-filter:blur(var(--glass-blur));
  box-shadow:0 10px 30px rgba(0,0,0,.35);
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.card-hover:hover{
  transform:translateY(-4px);
  border-color:rgba(31,182,166,.45);
  box-shadow:0 18px 44px rgba(31,182,166,.18);
}
.media{
  position:relative;overflow:hidden;border-radius:14px;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  aspect-ratio:16/10;
}
.media img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease)}
.card-hover:hover .media img{transform:scale(1.04)}
.tag{
  display:inline-flex;align-items:center;border-radius:999px;padding:4px 10px;
  font-size:12px;font-weight:500;line-height:1.5;
  background:rgba(31,182,166,.12);color:var(--brand-ink);
}
.tag-accent{background:rgba(240,168,90,.14);color:#F5C48C}

/* ---------- 首屏 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:clamp(48px,7vw,84px) 0 clamp(44px,6vw,72px);
  background-image:linear-gradient(rgba(6,20,30,.88),rgba(8,26,36,.76)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(126,196,214,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(126,196,214,.05) 1px,transparent 1px);
  background-size:48px 48px;
  opacity:.55;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(600px 400px at 78% 18%, rgba(31,182,166,.20), transparent 70%);
}
.page-hero .container{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:40px;align-items:center}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:0;font-size:13px;color:var(--text-3);margin-bottom:16px}
.crumbs li{display:flex;align-items:center}
.crumbs li+li::before{content:"/";margin:0 8px;color:var(--text-3)}
.crumbs a{color:var(--text-2);font-size:13px}
.crumbs a:hover{color:var(--brand-ink)}
.crumbs li[aria-current="page"]{color:var(--text-3)}
h1{font-size:clamp(28px,4.2vw,46px);line-height:1.24;letter-spacing:-.01em;font-weight:700}
.hero-lead{margin-top:16px;font-size:16px;line-height:1.85;color:var(--text-2);max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-facts{display:flex;flex-wrap:wrap;gap:32px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}
.fact{min-width:96px}
.fact .num{font-size:clamp(22px,2.6vw,30px)}
.hero-card{padding:20px}
.hero-card .media{aspect-ratio:16/10}
.check-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.check-list li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.7}
.check-list svg{width:18px;height:18px;flex:0 0 18px;color:var(--brand);margin-top:4px}

/* ---------- 数字 ---------- */
.num{
  font-variant-numeric:tabular-nums;
  font-weight:700;color:var(--brand);
  font-size:clamp(26px,3.4vw,34px);line-height:1.2;
  letter-spacing:-.01em;
}
.num small{font-size:13px;font-weight:500;color:var(--text-3);margin-left:4px}

/* ---------- 板块标题 ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px}
.sec-title{position:relative;padding-left:16px;font-size:clamp(22px,3vw,32px);line-height:1.3}
.sec-title::before{content:"";position:absolute;left:0;top:.28em;width:3px;height:22px;border-radius:3px;background:var(--brand)}
.sec-desc{margin-top:12px;padding-left:16px;font-size:15px;color:var(--text-2);max-width:720px}

/* ---------- 时间轴 ---------- */
.timeline-wrap{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:48px;align-items:start}
.timeline-aside{position:sticky;top:32px}
.timeline-aside .aside-card{padding:24px}
.aside-card h3{font-size:18px;line-height:1.45;margin-bottom:12px}
.aside-card p{font-size:14px;color:var(--text-2);line-height:1.8}
.aside-card .aside-list{margin-top:18px;display:flex;flex-direction:column;gap:12px}
.aside-card .aside-list li{display:flex;justify-content:space-between;gap:12px;font-size:13px;color:var(--text-3);padding-bottom:12px;border-bottom:1px dashed var(--line)}
.aside-card .aside-list li:last-child{border-bottom:0;padding-bottom:0}
.aside-card .aside-list strong{color:var(--text);font-weight:600}
.timeline{position:relative;padding-left:36px}
.timeline::before{content:"";position:absolute;left:6px;top:14px;bottom:14px;width:1px;background:var(--line)}
.tl-item{position:relative;margin-bottom:40px}
.tl-item:last-child{margin-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-36px;top:26px;width:12px;height:12px;border-radius:50%;
  background:var(--glow);
  box-shadow:0 0 0 4px rgba(63,224,198,.14), 0 0 14px rgba(63,224,198,.60);
}
.tl-card{padding:22px 24px}
.tl-card:hover{border-color:rgba(31,182,166,.45);box-shadow:0 18px 44px rgba(31,182,166,.18);transform:translateY(-4px)}
.tl-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px}
.tl-step{
  font-variant-numeric:tabular-nums;font-size:13px;font-weight:700;letter-spacing:.06em;
  color:var(--brand-ink);background:rgba(31,182,166,.12);
  border-radius:999px;padding:3px 10px;
}
.tl-card h3{font-size:18px;line-height:1.45}
.tl-card p{margin-top:10px;font-size:14.5px;color:var(--text-2);line-height:1.8}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}

/* ---------- 通道 ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.channel-card{padding:24px}
.channel-ico{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  background:rgba(31,182,166,.12);color:var(--brand-ink);margin-bottom:16px;
}
.channel-ico svg{width:24px;height:24px}
.channel-card h3{font-size:17px;line-height:1.45}
.channel-card p{margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.8}
.channel-meta{margin-top:16px;font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums}

/* ---------- 表单 ---------- */
.form-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.form-panel{grid-column:span 7;padding:28px}
.contact-panel{grid-column:span 5;padding:28px}
.panel-title{font-size:20px;line-height:1.4;font-weight:700}
.panel-sub{margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.8}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.field label{font-size:13px;color:var(--text-2)}
.field input,.field select,.field textarea{
  width:100%;background:rgba(255,255,255,.04);
  border:1px solid var(--line);border-radius:12px;
  padding:12px 14px;color:var(--text);font-size:15px;line-height:1.6;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
}
.field textarea{min-height:120px;resize:vertical}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-3) 50%),linear-gradient(135deg,var(--text-3) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,182,166,.18);background:rgba(255,255,255,.06);
}
.field.invalid input,.field.invalid textarea,.field.invalid select{border-color:var(--err)}
.field .err{display:none;font-size:12px;color:var(--err);line-height:1.6}
.field.invalid .err{display:block}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-note{margin-top:12px;font-size:12px;color:var(--text-3);line-height:1.7}
.form-alert{
  display:none;margin-top:16px;padding:12px 14px;border-radius:12px;font-size:14px;line-height:1.7;
  background:rgba(52,192,138,.12);border:1px solid rgba(52,192,138,.35);color:#8FE3BE;
}
.form-alert.show{display:block}
.contact-list{display:flex;flex-direction:column;gap:16px;margin-top:22px}
.contact-list li{display:flex;gap:12px;font-size:14px;color:var(--text-2);line-height:1.75}
.contact-list svg{width:18px;height:18px;flex:0 0 18px;color:var(--brand-ink);margin-top:5px}
.contact-list strong{display:block;color:var(--text);font-weight:600;font-size:14px}
.contact-divider{height:1px;background:var(--line);margin:22px 0}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 4px;text-align:left;
  font-size:15px;font-weight:500;color:var(--text);
  transition:color .22s var(--ease);
}
.faq-q:hover{color:var(--brand-ink)}
.faq-q .ico{
  width:24px;height:24px;flex:0 0 24px;border-radius:50%;
  border:1px solid var(--line-strong);display:grid;place-items:center;
  color:var(--brand-ink);
  transition:transform .26s var(--ease),border-color .26s var(--ease);
}
.faq-item.open .faq-q .ico{transform:rotate(45deg);border-color:var(--brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .30s var(--ease)}
.faq-a p{padding:0 4px 18px;font-size:14.5px;color:var(--text-2);line-height:1.8}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-block);
  padding:clamp(28px,4vw,48px);
  background:var(--glass-bg);border:1px solid var(--glass-border);
  backdrop-filter:blur(var(--glass-blur));
  box-shadow:0 10px 30px rgba(0,0,0,.35);
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(126,196,214,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(126,196,214,.05) 1px,transparent 1px);
  background-size:48px 48px;opacity:.6;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(520px 320px at 85% 15%, rgba(31,182,166,.22), transparent 70%);
}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(22px,3vw,30px);line-height:1.32}
.cta-inner p{margin-top:12px;font-size:15px;color:var(--text-2)}
.cta-side{display:flex;flex-direction:column;align-items:flex-end;gap:10px}
.cta-side .meta{font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}

/* ---------- 页脚 ---------- */
.footer{
  flex:0 0 auto;margin-top:clamp(56px,8vw,112px);
  background:var(--bg-deep);border-top:1px solid var(--line);
  padding:clamp(40px,5vw,64px) 0 24px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1fr;gap:32px}
.footer-brand{display:flex;gap:12px}
.footer-brand .brand-mark{width:40px;height:40px;flex:0 0 40px;font-size:15px;border-radius:12px}
.footer-brand .brand-name{font-size:16px}
.footer-desc{margin-top:14px;font-size:13px;color:var(--text-3);line-height:1.9;max-width:320px}
.footer-beian{margin-top:12px;font-size:12px;color:var(--text-3)}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:13.5px;color:var(--text-2)}
.footer-links a:hover{color:var(--brand-ink)}
.footer-contact{display:flex;flex-direction:column;gap:12px}
.footer-contact li{display:flex;gap:10px;font-size:13.5px;color:var(--text-2);line-height:1.7}
.footer-contact svg{width:16px;height:16px;flex:0 0 16px;color:var(--brand-ink);margin-top:5px}
.qr-box{
  width:96px;height:96px;border-radius:14px;
  border:1px solid var(--line-strong);background:rgba(255,255,255,.04);
  display:grid;place-items:center;color:var(--text-3);font-size:12px;
  background-image:linear-gradient(135deg, rgba(31,182,166,.10), rgba(42,143,214,.10));
}
.footer-qr p{margin-top:10px;font-size:12px;color:var(--text-3);line-height:1.7}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid var(--line);
  font-size:12px;color:var(--text-3);line-height:1.9;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}

/* ---------- 返回顶部 ---------- */
.back-top{
  position:fixed;right:24px;bottom:24px;width:44px;height:44px;z-index:60;
  border-radius:50%;display:grid;place-items:center;
  background:var(--glass-bg);border:1px solid var(--glass-border);color:var(--text-2);
  backdrop-filter:blur(var(--glass-blur));
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .26s var(--ease),transform .26s var(--ease),visibility .26s var(--ease),box-shadow .26s var(--ease),color .26s var(--ease);
}
.back-top.show{opacity:1;visibility:visible;transform:none}
.back-top:hover{color:var(--brand-ink);box-shadow:0 6px 24px rgba(31,182,166,.35);border-color:rgba(31,182,166,.5)}
.back-top svg{width:20px;height:20px}

/* ---------- 响应式 ---------- */
@media (max-width:1279.98px){
  :root{--sidebar-w:200px}
  .nav-item{font-size:14px;padding:0 12px}
  .brand-sub{display:none}
}
@media (max-width:1023.98px){
  .sidebar{
    width:280px;transform:translateX(-100%);
    transition:transform .26s var(--ease);
    padding:20px 16px 24px;
  }
  .sidebar.open{transform:none}
  .topbar{display:flex}
  .main{margin-left:0;padding-top:64px}
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .timeline-wrap{grid-template-columns:1fr;gap:32px}
  .timeline-aside{position:static}
  .form-panel,.contact-panel{grid-column:span 12}
  .channel-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-side{align-items:flex-start;width:100%}
  .hero-facts{gap:24px}
}
@media (max-width:767.98px){
  body{font-size:15px;line-height:1.8}
  .container{padding:0 20px}
  .channel-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .field-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .timeline{padding-left:26px}
  .timeline::before{left:4px}
  .tl-item::before{left:-26px;top:24px}
  .tl-card{padding:20px}
  .form-panel,.contact-panel{padding:20px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-inner .btn{width:100%}
  .back-top{right:16px;bottom:16px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .hero-facts{flex-direction:column;gap:18px}
  .btn{height:46px;padding:0 18px;font-size:14.5px}
}
@media (prefers-reduced-motion: reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}