/* roulang page: index */
:root{
  --brand:#00D68F;--brand-deep:#00A66F;--brand-soft:rgba(0,214,143,.12);
  --accent:#6E56CF;--hot:#FF6B35;--warn:#F5C542;
  --bg-dark:#0B1013;--bg-light:#F4F6F5;--card-dark:#141A1E;--card-light:#FFFFFF;
  --line-dark:rgba(255,255,255,.08);--line-light:#E2E7E5;
  --text-dark:#F2F6F4;--muted-dark:#9AA7A3;--text-light:#10161A;--muted-light:#55605D;
  --r-card:10px;--r-btn:8px;--r-input:8px;--r-badge:4px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg-light);color:var(--text-light);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color 160ms var(--ease)}
a:hover{color:var(--brand-deep)}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
::selection{background:var(--brand-soft)}

.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.container-wide{max-width:1280px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-dark{background:var(--bg-dark);color:var(--text-dark)}
.section-dark h2,.section-dark h3{color:var(--text-dark)}
.section-light{background:var(--bg-light)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;font-weight:700;letter-spacing:.01em}
.section-head p{color:var(--muted-light);font-size:15px;margin-top:8px}
.section-dark .section-head p{color:var(--muted-dark)}
.textlink{color:var(--brand-deep);font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px}
.textlink .arw{transition:transform 200ms var(--ease)}
.textlink:hover{color:var(--brand)}
.textlink:hover .arw{transform:translateX(3px)}
.section-dark .textlink{color:var(--brand)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:40px;padding:0 20px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform 160ms var(--ease),box-shadow 240ms var(--ease),background-color 200ms var(--ease),border-color 200ms var(--ease),color 200ms var(--ease);
  border:1px solid transparent;white-space:nowrap}
.btn-primary{background:var(--brand);color:#04140E;box-shadow:0 6px 18px rgba(0,214,143,.24)}
.btn-primary:hover{background:#1BE19C;transform:translateY(-1px);box-shadow:0 10px 26px rgba(0,214,143,.32);color:#04140E}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--text-dark);border-color:rgba(255,255,255,.22)}
.btn-ghost:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand);transform:translateY(-1px)}
.btn-outline{background:transparent;border-color:var(--line-light);color:var(--text-light)}
.btn-outline:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-1px)}
.btn-lg{height:48px;padding:0 26px;font-size:16px}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* 徽章 */
.badge{display:inline-block;border-radius:var(--r-badge);padding:3px 9px;font-size:13px;line-height:1.5;
  border:1px solid rgba(110,86,207,.5);background:rgba(110,86,207,.1);color:#8E7BE0}
.badge-hot{border-color:rgba(255,107,53,.55);background:rgba(255,107,53,.12);color:var(--hot)}
.badge-brand{border-color:rgba(0,214,143,.5);background:var(--brand-soft);color:var(--brand-deep)}
.section-dark .badge-brand{color:var(--brand)}

/* 倒计时条 */
.topbar{background:#070C0E;border-bottom:1px solid var(--line-dark);color:var(--text-dark);font-size:14px}
.topbar-inner{max-width:1280px;margin:0 auto;padding:0 24px;height:44px;display:flex;align-items:center;gap:18px}
.topbar-tag{border-radius:var(--r-badge);background:var(--brand);color:#04140E;font-weight:700;font-size:13px;padding:2px 8px;letter-spacing:.02em}
.topbar-text{color:var(--muted-dark)}
.countdown{display:flex;align-items:center;gap:6px;margin-left:auto}
.countdown .num{font-variant-numeric:tabular-nums;font-weight:800;letter-spacing:-.02em;color:var(--hot);
  background:rgba(255,107,53,.1);border:1px solid rgba(255,107,53,.28);border-radius:4px;padding:2px 8px;min-width:38px;text-align:center}
.countdown .sep{color:var(--muted-dark)}
.topbar-link{color:var(--text-dark);font-weight:500}
.topbar-link:hover{color:var(--brand)}
.topbar-close{color:var(--muted-dark);font-size:18px;line-height:1;padding:4px 6px;border-radius:6px}
.topbar-close:hover{color:var(--text-dark);background:rgba(255,255,255,.06)}

/* 导航 */
.site-header{position:sticky;top:0;z-index:60;background:rgba(11,16,19,.86);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--line-dark)}
.nav-inner{max-width:1280px;margin:0 auto;padding:0 24px;height:68px;display:flex;align-items:center;gap:28px}
.logo{display:flex;align-items:center;gap:10px;color:var(--text-dark);font-weight:700;font-size:16px;letter-spacing:.01em}
.logo:visited{color:var(--text-dark)}
.logo:hover{color:var(--text-dark)}
.logo-mark{width:30px;height:30px;border-radius:8px;border:1.5px solid var(--brand);display:flex;align-items:center;justify-content:center;
  color:var(--brand);font-size:14px;font-weight:800;background:linear-gradient(135deg,rgba(0,214,143,.16),rgba(110,86,207,.14))}
.logo-text b{color:var(--brand)}
.nav-menu{display:flex;align-items:center;gap:28px;margin-left:8px}
.nav-menu a{color:var(--muted-dark);font-size:15px;font-weight:500;letter-spacing:.01em;position:relative;padding:6px 0}
.nav-menu a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--brand);transition:width 240ms var(--ease)}
.nav-menu a:hover{color:var(--text-dark)}
.nav-menu a:hover::after{width:100%}
.nav-menu a.active{color:var(--brand)}
.nav-menu a.active::after{width:100%}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.search{position:relative;width:220px}
.search input{width:100%;height:38px;border-radius:var(--r-input);border:1px solid var(--line-dark);
  background:rgba(255,255,255,.04);color:var(--text-dark);padding:0 52px 0 34px;font-size:14px;transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease)}
.search input::placeholder{color:#6E7A76}
.search input:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft);outline:none}
.search .ico{position:absolute;left:11px;top:50%;transform:translateY(-50%);color:#6E7A76;font-size:14px}
.search .kbd{position:absolute;right:8px;top:50%;transform:translateY(-50%);font-size:11px;color:#8A9691;
  border:1px solid var(--line-dark);border-radius:4px;padding:1px 5px;font-weight:600}
.icon-btn{width:38px;height:38px;border-radius:8px;border:1px solid var(--line-dark);display:flex;align-items:center;justify-content:center;
  color:var(--muted-dark);font-size:16px;transition:color 200ms var(--ease),border-color 200ms var(--ease),background-color 200ms var(--ease)}
.icon-btn:hover{color:var(--brand);border-color:rgba(0,214,143,.45);background:var(--brand-soft)}
.nav-toggle{display:none;width:38px;height:38px;border-radius:8px;border:1px solid var(--line-dark);color:var(--text-dark);align-items:center;justify-content:center}
.drawer{position:fixed;top:0;right:0;width:280px;height:100%;background:#0E1417;border-left:1px solid var(--line-dark);
  z-index:90;transform:translateX(100%);transition:transform 320ms var(--ease);padding:20px;display:flex;flex-direction:column;gap:18px}
body.nav-open .drawer{transform:translateX(0)}
.drawer-mask{position:fixed;inset:0;background:rgba(0,0,0,.6);opacity:0;visibility:hidden;transition:opacity 240ms var(--ease);z-index:80}
body.nav-open .drawer-mask{opacity:1;visibility:visible}
.drawer .search{width:100%}
.drawer nav{display:flex;flex-direction:column;gap:4px}
.drawer nav a{color:var(--text-dark);padding:11px 12px;border-radius:8px;font-size:15px;font-weight:500}
.drawer nav a:hover{background:rgba(255,255,255,.05)}
.drawer nav a.active{color:var(--brand);background:var(--brand-soft)}
.drawer .btn{width:100%;margin-top:auto}
.drawer-title{color:var(--muted-dark);font-size:13px;letter-spacing:.08em}

/* Hero */
.hero{position:relative;background:var(--bg-dark);color:var(--text-dark);overflow:hidden;
  padding:104px 0 96px;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,16,19,.94),rgba(11,16,19,.88) 45%,rgba(11,16,19,.97))}
.hero::after{content:"";position:absolute;inset:0;opacity:.16;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.14) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:56px 56px}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(30px,4.2vw,46px);line-height:1.18;font-weight:800;letter-spacing:-.01em;margin:18px 0 20px}
.hero h1 em{font-style:normal;color:var(--brand)}
.hero-sub{color:#C6D2CE;font-size:17px;line-height:1.7;max-width:560px}
.hero-cta{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.hero-stats{display:flex;gap:28px;margin-top:44px;flex-wrap:wrap}
.hero-stats .stat{padding-left:18px;border-left:1px solid var(--line-dark)}
.hero-stats .stat:first-child{padding-left:0;border-left:0}
.hero-stats .n{font-size:24px;font-weight:800;letter-spacing:-.02em;color:var(--brand);font-variant-numeric:tabular-nums}
.hero-stats .t{font-size:12px;color:var(--muted-dark);letter-spacing:.02em}

.panel{position:relative;border-radius:12px;border:1px solid var(--line-dark);background:var(--card-dark);
  box-shadow:0 12px 32px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.05);overflow:hidden}
.panel-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;opacity:.16}
.panel-body{position:relative;padding:22px}
.panel-bar{display:flex;align-items:center;gap:8px;padding-bottom:16px;border-bottom:1px solid var(--line-dark)}
.panel-bar .dot{width:9px;height:9px;border-radius:50%;background:#2A3438}
.panel-bar .dot.on{background:var(--brand)}
.panel-bar .t{margin-left:auto;font-size:12px;color:var(--muted-dark);letter-spacing:.06em}
.field{margin-top:16px}
.field .lbl{font-size:12px;color:var(--muted-dark);margin-bottom:7px;letter-spacing:.04em}
.field .ph{height:42px;border-radius:var(--r-input);border:1px solid var(--line-dark);background:rgba(255,255,255,.035)}
.field .ph.short{width:62%}
.panel-btn{margin-top:20px;height:42px;border-radius:var(--r-btn);background:var(--brand);color:#04140E;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px}
.panel-note{margin-top:14px;font-size:12px;color:var(--muted-dark);display:flex;justify-content:space-between}

/* 卖点编号条 */
.points{display:grid;grid-template-columns:320px 1fr;gap:56px}
.points-side{position:sticky;top:104px;align-self:start}
.points-side h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35}
.points-side p{color:var(--muted-light);margin-top:14px;font-size:15px}
.point-list{display:flex;flex-direction:column}
.point{display:grid;grid-template-columns:78px 1fr;gap:20px;padding:26px 0;border-top:1px solid var(--line-light);
  transition:transform 240ms var(--ease)}
.point:last-child{border-bottom:1px solid var(--line-light)}
.point .no{font-size:28px;font-weight:800;letter-spacing:-.02em;color:#C8D2CF;font-variant-numeric:tabular-nums;
  transition:color 240ms var(--ease)}
.point h3{font-size:19px;font-weight:700;margin-bottom:6px}
.point p{color:var(--muted-light);font-size:15px}
.point:hover{transform:translateX(4px)}
.point:hover .no{color:var(--hot)}

/* 图墙 */
.wall{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:176px;gap:24px}
.wall-item{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line-dark);background:#111A1E}
.wall-item:nth-child(1),.wall-item:nth-child(4){grid-row:span 2}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.wall-item::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,16,19,0) 40%,rgba(11,16,19,.9));transition:background 320ms var(--ease)}
.wall-item span{position:absolute;left:18px;bottom:16px;z-index:2;font-size:15px;font-weight:600;color:#F2F6F4}
.wall-item .cap{position:absolute;right:14px;top:14px;z-index:2;border-radius:var(--r-badge);clip-path:polygon(8px 0,100% 0,100% 100%,0 100%,0 8px);
  background:rgba(110,86,207,.85);color:#fff;font-size:12px;padding:3px 9px}
.wall-item:hover img{transform:scale(1.03)}
.wall-item:hover::after{background:linear-gradient(180deg,rgba(11,16,19,.05) 30%,rgba(11,16,19,.96))}
.wall-foot{margin-top:28px;text-align:right}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{position:relative;padding-top:34px}
.step::before{content:"";position:absolute;top:9px;left:0;right:-24px;height:1px;background:var(--line-light)}
.step:last-child::before{right:0;background:linear-gradient(90deg,var(--line-light),transparent)}
.step .node{position:absolute;top:2px;left:0;width:16px;height:16px;border-radius:50%;background:#fff;border:2px solid var(--brand-deep)}
.step h3{font-size:17px;font-weight:700;margin-bottom:8px}
.step p{color:var(--muted-light);font-size:14px}
.step .idx{display:inline-block;font-size:12px;font-weight:700;color:var(--brand-deep);letter-spacing:.08em;margin-bottom:6px}

/* 资讯列表 */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{display:flex;flex-direction:column;background:var(--card-light);border:1px solid var(--line-light);border-radius:var(--r-card);
  overflow:hidden;box-shadow:0 2px 10px rgba(16,22,26,.05);transition:transform 240ms var(--ease),box-shadow 240ms var(--ease),border-color 240ms var(--ease)}
.post-card:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(16,22,26,.09);border-color:rgba(0,214,143,.35);color:inherit}
.post-thumb{position:relative;aspect-ratio:16/9;background:#E7EBE9}
.post-thumb img{width:100%;height:100%;object-fit:cover}
.post-thumb .badge{position:absolute;left:12px;top:12px}
.post-body{padding:18px;display:flex;flex-direction:column;flex:1}
.post-title{font-size:18px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color 200ms var(--ease)}
.post-card:hover .post-title{color:var(--brand-deep)}
.post-excerpt{color:var(--muted-light);font-size:14px;margin-top:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted-light);border-top:1px solid var(--line-light)}
.post-more{color:var(--brand-deep);font-weight:600;display:inline-flex;align-items:center;gap:4px}
.post-card:hover .post-more .arw{transform:translateX(3px)}
.post-more .arw{transition:transform 200ms var(--ease);display:inline-block}
.empty{border:1px dashed var(--line-light);border-radius:var(--r-card);background:#fff;min-height:200px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:10px;padding:32px}
.empty .ico{width:44px;height:44px;border-radius:50%;border:1px solid var(--line-light);display:flex;align-items:center;justify-content:center;color:var(--muted-light);font-size:18px}
.empty p{color:var(--muted-light);font-size:15px}

/* CTA 大条 */
.cta-band{position:relative;background:var(--bg-dark);color:var(--text-dark);overflow:hidden;
  padding:88px 0;background-image:url('/assets/images/backpic/back-3.webp');background-size:cover;background-position:center}
.cta-band::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,16,19,.96),rgba(11,16,19,.82))}
.cta-band::after{content:"";position:absolute;inset:0;opacity:.12;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.16) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:48px 48px}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;
  border:1px solid rgba(255,107,53,.35);border-radius:14px;padding:40px;background:rgba(20,26,30,.55)}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35}
.cta-inner p{color:#C6D2CE;margin-top:10px;font-size:15px}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}

/* FAQ */
.faq-list{max-width:900px}
.faq-item{background:#fff;border:1px solid var(--line-light);border-radius:var(--r-card);margin-bottom:12px;overflow:hidden;transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease)}
.faq-item.open{border-color:rgba(0,214,143,.45);box-shadow:0 6px 20px rgba(16,22,26,.07)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;
  padding:18px 20px;font-size:16px;font-weight:600}
.faq-q .sign{flex:none;width:22px;height:22px;border-radius:4px;border:1px solid var(--line-light);color:var(--brand-deep);
  display:flex;align-items:center;justify-content:center;font-size:14px;transition:transform 240ms var(--ease),background-color 200ms var(--ease)}
.faq-item.open .faq-q .sign{transform:rotate(45deg);background:var(--brand-soft)}
.faq-a{display:none;padding:0 20px 20px;color:var(--muted-light);font-size:15px;line-height:1.85}
.faq-item.open .faq-a{display:block}

/* 页脚 */
.site-footer{background:#080D0F;color:var(--muted-dark);padding:72px 0 0;border-top:1px solid var(--line-dark)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.8;max-width:320px}
.footer-col h4{color:var(--text-dark);font-size:15px;font-weight:700;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:var(--muted-dark)}
.footer-col a:hover{color:var(--brand)}
.footer-note{font-size:13px;line-height:1.8}
.footer-bottom{margin-top:52px;border-top:1px solid var(--line-dark);padding:22px 0;display:flex;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:#79８585;color:#798585}

/* 响应式 */
@media (max-width:1279px){
  .wall{grid-template-columns:repeat(3,1fr)}
  .hero-inner{grid-template-columns:6fr 6fr;gap:40px}
  .points{grid-template-columns:260px 1fr;gap:40px}
}
@media (max-width:1023px){
  .section{padding:64px 0}
  .nav-menu{display:none}
  .search{display:none}
  .nav-toggle{display:flex}
  .hero-inner{grid-template-columns:1fr;gap:44px}
  .hero{padding:72px 0 64px}
  .panel{max-width:520px}
  .wall{grid-template-columns:repeat(2,1fr);grid-auto-rows:160px}
  .wall-item:nth-child(1),.wall-item:nth-child(4){grid-row:span 1}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr);gap:32px 24px}
  .step::before{right:-24px}
  .points{grid-template-columns:1fr;gap:24px}
  .points-side{position:static}
  .cta-inner{grid-template-columns:1fr;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px 24px}
}
@media (max-width:767px){
  .container,.container-wide,.nav-inner,.topbar-inner{padding:0 16px}
  .section{padding:48px 0}
  .hero{padding:56px 0 48px}
  .topbar-text,.topbar-link{display:none}
  .countdown{margin-left:auto}
  .post-grid{grid-template-columns:1fr}
  .wall{grid-template-columns:1fr;grid-auto-rows:190px}
  .steps{grid-template-columns:1fr;gap:0}
  .step{padding:0 0 26px 26px;border-left:1px solid var(--line-light);margin-left:7px}
  .step::before{display:none}
  .step .node{top:4px;left:-8px}
  .hero-stats{gap:18px}
  .hero-cta .btn{flex:1 1 100%}
  .cta-inner{padding:24px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .faq-list{max-width:none}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:479px){
  body{font-size:15px}
  .hero h1{font-size:30px}
  .hero-sub{font-size:16px}
  .btn{width:100%}
  .btn-inline{width:auto}
  .footer-grid{grid-template-columns:1fr}
  .post-body{padding:16px}
  .hero::after,.cta-band::after{display:none}
  .topbar-inner{gap:10px}
}

/* roulang page: article */
:root{
  --brand:#00D68F;
  --brand-deep:#00A66F;
  --brand-soft:rgba(0,214,143,.12);
  --accent:#6E56CF;
  --accent-soft:rgba(110,86,207,.10);
  --hot:#FF6B35;
  --warn:#F5C542;
  --bg-dark:#0B1013;
  --bg-light:#F4F6F5;
  --card-dark:#141A1E;
  --card-light:#FFFFFF;
  --line-dark:rgba(255,255,255,.08);
  --line-light:#E2E7E5;
  --text-dark:#F2F6F4;
  --muted-dark:#9AA7A3;
  --text-light:#10161A;
  --muted-light:#55605D;
  --radius-card:10px;
  --radius-btn:8px;
  --radius-badge:4px;
  --shadow-light:0 0 0 1px var(--line-light),0 2px 10px rgba(16,22,26,.05);
  --shadow-light-hover:0 6px 20px rgba(16,22,26,.09);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
  --container-wide:1280px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg-light);
  color:var(--text-light);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color 200ms var(--ease)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.3}
ul,ol{margin:0}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.container-wide{max-width:var(--container-wide);margin:0 auto;padding:0 24px}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,16,19,.86);
  border-bottom:1px solid var(--line-dark);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
}
.nav-inner{
  max-width:var(--container-wide);margin:0 auto;padding:0 24px;
  height:68px;display:flex;align-items:center;gap:28px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:32px;height:32px;display:grid;place-items:center;
  border:1.5px solid var(--brand);border-radius:8px;
  color:var(--brand);font-weight:800;font-size:15px;line-height:1;
}
.logo-text{font-size:16px;font-weight:600;color:var(--text-dark);letter-spacing:.01em;white-space:nowrap}
.logo-text b{color:var(--brand);font-weight:800}
.nav-menu{display:flex;align-items:center;gap:28px;margin-left:8px}
.nav-menu a{
  position:relative;font-size:15px;font-weight:500;letter-spacing:.01em;
  color:var(--muted-dark);padding:6px 0;
}
.nav-menu a::after{
  content:"";position:absolute;left:0;right:0;bottom:-19px;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform 240ms var(--ease);
}
.nav-menu a:hover{color:var(--text-dark)}
.nav-menu a:hover::after{transform:scaleX(1)}
.nav-menu a.active{color:var(--brand)}
.nav-menu a.active::after{transform:scaleX(1)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.search{
  display:flex;align-items:center;gap:8px;width:220px;height:40px;padding:0 10px;
  border:1px solid var(--line-dark);border-radius:var(--radius-btn);
  background:rgba(255,255,255,.03);
  transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease);
}
.search .ico{color:var(--muted-dark);font-size:15px;line-height:1}
.search input{
  flex:1;min-width:0;border:0;background:transparent;color:var(--text-dark);
  font-size:14px;outline:none;
}
.search input::placeholder{color:#6d7a76}
.search .kbd{
  font-size:11px;color:var(--muted-dark);border:1px solid var(--line-dark);
  border-radius:4px;padding:1px 5px;line-height:1.4;
}
.search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.icon-btn{
  width:40px;height:40px;display:grid;place-items:center;
  border:1px solid var(--line-dark);border-radius:var(--radius-btn);
  color:var(--muted-dark);font-size:15px;font-weight:700;
  transition:all 200ms var(--ease);
}
.icon-btn:hover{color:var(--brand);border-color:rgba(0,214,143,.5)}
.nav-toggle{
  display:none;width:40px;height:40px;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line-dark);border-radius:var(--radius-btn);
  color:var(--text-dark);font-size:16px;
}

/* ============ 按钮 / 徽章 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:40px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:14px;font-weight:600;border:1px solid transparent;white-space:nowrap;
  transition:background-color 240ms var(--ease),color 240ms var(--ease),border-color 240ms var(--ease),transform 240ms var(--ease),box-shadow 240ms var(--ease);
}
.btn-primary{background:var(--brand);color:#06231a}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:0 8px 22px rgba(0,214,143,.28)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{border-color:var(--line-light);background:#fff;color:var(--text-light)}
.btn-outline:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(1px)}
.btn-ghost-dark{border-color:var(--line-dark);background:transparent;color:var(--text-dark)}
.btn-ghost-dark:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand)}
.btn-lg{height:48px;padding:0 26px;font-size:15px}
.btn-block{width:100%}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 8px;
  border-radius:var(--radius-badge);border:1px solid rgba(110,86,207,.45);
  background:var(--accent-soft);color:#5a45b8;font-size:12px;font-weight:600;
}
.badge-hot{border-color:rgba(255,107,53,.45);background:rgba(255,107,53,.10);color:#d1531f}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;overflow:hidden;background:var(--bg-dark);
  padding:40px 0 96px;
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(11,16,19,.88),rgba(11,16,19,.96)),url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
  opacity:.55;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:48px 48px;
  pointer-events:none;
}
.article-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted-dark);margin-bottom:20px}
.breadcrumb a{color:var(--muted-dark)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#4d5a56}
.breadcrumb .crumb-cur{color:#7d8a86}
.article-hero h1{
  font-size:clamp(28px,3.6vw,42px);font-weight:800;line-height:1.25;
  letter-spacing:-.01em;color:var(--text-dark);max-width:900px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  margin-top:22px;font-size:13px;color:var(--muted-dark);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:8px}
.article-meta .meta-item + .meta-item::before{
  content:"";width:4px;height:4px;border-radius:50%;background:#3c4747;margin-right:14px;
}
.article-meta a{color:var(--brand)}

/* ============ 正文卡 ============ */
.article-main{background:var(--bg-light);padding:0 0 8px}
.article-card{
  position:relative;z-index:3;
  max-width:760px;margin:-56px auto 0;
  background:var(--card-light);
  border:1px solid var(--line-light);
  border-radius:var(--radius-card);
  box-shadow:0 10px 34px rgba(16,22,26,.10);
  padding:40px;
}
.article-body{font-size:17px;line-height:1.9;color:#1b2427}
.article-body > * + *{margin-top:20px}
.article-body p{margin:0}
.article-body h2{
  font-size:22px;font-weight:700;line-height:1.45;margin:40px 0 16px;
  padding-left:12px;border-left:3px solid var(--brand);color:var(--text-light);
}
.article-body h3{font-size:18px;font-weight:700;margin:32px 0 12px;color:var(--text-light)}
.article-body h4{font-size:16px;font-weight:700;margin:24px 0 10px}
.article-body ul,.article-body ol{padding-left:22px}
.article-body li{margin:8px 0}
.article-body ul li::marker{color:var(--brand)}
.article-body ol li::marker{color:var(--brand);font-weight:700}
.article-body blockquote{
  margin:24px 0;padding:16px 18px;border-left:3px solid var(--brand);
  background:rgba(0,214,143,.07);border-radius:0 8px 8px 0;color:#2b3538;
}
.article-body blockquote p{margin:0}
.article-body img{border-radius:8px;margin:24px auto;width:100%;height:auto}
.article-body a{color:var(--brand-deep);border-bottom:1px solid rgba(0,166,111,.35)}
.article-body a:hover{color:var(--brand);border-bottom-color:var(--brand)}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;line-height:1.7}
.article-body th,.article-body td{border:1px solid var(--line-light);padding:12px;text-align:left}
.article-body th{background:rgba(0,214,143,.08);font-weight:700}
.article-body hr{border:0;border-top:1px solid var(--line-light);margin:32px 0}
.article-body code{background:#f1f4f3;padding:2px 6px;border-radius:4px;font-size:14px}
.empty-state{padding:48px 0;text-align:center}
.empty-state .empty-mark{
  width:52px;height:52px;margin:0 auto 16px;display:grid;place-items:center;
  border:1px solid var(--line-light);border-radius:12px;background:var(--bg-light);
  color:var(--muted-light);font-weight:800;font-size:20px;
}
.empty-state p{margin:0 0 20px;color:var(--muted-light);font-size:16px}

/* ============ 标签与相关推荐 ============ */
.article-foot{max-width:760px;margin:32px auto 0}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.tag-row .tag-label{font-size:13px;color:var(--muted-light);margin-right:2px}
.soft-divider{height:1px;background:var(--line-light);margin:40px 0}
.related{max-width:var(--container);margin:0 auto;padding:0 24px 8px}
.related-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:24px}
.related-head h2{font-size:clamp(20px,2.2vw,26px);font-weight:700}
.related-head a{font-size:14px;color:var(--brand-deep);display:inline-flex;align-items:center;gap:6px}
.related-head a .arrow{transition:transform 240ms var(--ease)}
.related-head a:hover .arrow{transform:translateX(3px)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:#fff;border:1px solid var(--line-light);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform 240ms var(--ease),box-shadow 240ms var(--ease),border-color 240ms var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-light-hover);border-color:rgba(0,214,143,.35)}
.card-cover{position:relative;aspect-ratio:16/9;background:#0B1013;overflow:hidden}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.card:hover .card-cover img{transform:scale(1.03)}
.card-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,16,19,0) 45%,rgba(11,16,19,.55));
}
.card-cover .badge{position:absolute;left:12px;top:12px;z-index:2;background:rgba(11,16,19,.72);border-color:rgba(110,86,207,.6);color:#c9bdf5}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:17px;font-weight:700;line-height:1.5;color:var(--text-light);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card:hover .card-title{color:var(--brand-deep)}
.card-desc{font-size:14px;color:var(--muted-light);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted-light);border-top:1px solid var(--line-light);padding-top:12px;
}
.card-foot .read{display:inline-flex;align-items:center;gap:4px;color:var(--brand-deep);font-weight:600}
.card-foot .read .arrow{transition:transform 240ms var(--ease)}
.card:hover .card-foot .read .arrow{transform:translateX(3px)}
.back-row{display:flex;justify-content:center;padding:48px 0 0}

/* ============ 结尾 CTA ============ */
.cta-strip{
  position:relative;overflow:hidden;background:var(--bg-dark);
  border-top:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark);
  padding:72px 0;margin-top:80px;
}
.cta-strip::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:44px 44px;
}
.cta-strip .cta-inner{
  position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;
}
.cta-strip h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;color:var(--text-dark)}
.cta-strip p{margin:12px 0 0;color:var(--muted-dark);font-size:16px;max-width:620px}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.cta-link{color:var(--brand);font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.cta-link .arrow{transition:transform 240ms var(--ease)}
.cta-link:hover .arrow{transform:translateX(3px)}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-dark);color:var(--muted-dark);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.5fr;gap:32px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{margin:0;font-size:14px;line-height:1.85;color:var(--muted-dark);max-width:340px}
.footer-col h4{color:var(--text-dark);font-size:15px;font-weight:700;margin:0 0 16px}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin:0 0 10px}
.footer-col a{font-size:14px;color:var(--muted-dark)}
.footer-col a:hover{color:var(--brand)}
.footer-note{margin:0;font-size:14px;line-height:1.85;color:var(--muted-dark)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line-dark);
  font-size:13px;color:#7a8783;
}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:28px;width:44px;height:44px;z-index:60;
  display:grid;place-items:center;border-radius:10px;border:1px solid var(--line-light);
  background:#fff;color:var(--text-light);box-shadow:var(--shadow-light);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity 240ms var(--ease),transform 240ms var(--ease),visibility 240ms var(--ease);
}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top:hover{border-color:var(--brand);color:var(--brand-deep)}

/* ============ 移动抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:90;
  opacity:0;visibility:hidden;transition:opacity 240ms var(--ease),visibility 240ms var(--ease);
}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:280px;z-index:91;
  background:var(--bg-dark);border-left:1px solid var(--line-dark);
  transform:translateX(100%);transition:transform 320ms var(--ease);
  padding:20px;display:flex;flex-direction:column;gap:18px;overflow-y:auto;
}
body.nav-open{overflow:hidden}
body.nav-open .drawer-mask{opacity:1;visibility:visible}
body.nav-open .drawer{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{
  width:36px;height:36px;display:grid;place-items:center;background:transparent;
  border:1px solid var(--line-dark);border-radius:var(--radius-btn);
  color:var(--text-dark);font-size:18px;line-height:1;
}
.drawer-search{display:flex;align-items:center;gap:8px;height:44px;padding:0 12px;border:1px solid var(--line-dark);border-radius:var(--radius-btn);background:rgba(255,255,255,.03)}
.drawer-search input{flex:1;min-width:0;border:0;background:transparent;color:var(--text-dark);font-size:14px;outline:none}
.drawer-search .ico{color:var(--muted-dark)}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  padding:12px 8px;font-size:15px;font-weight:500;color:var(--muted-dark);
  border-radius:8px;border-left:2px solid transparent;
}
.drawer-nav a:hover{color:var(--text-dark);background:rgba(255,255,255,.04)}
.drawer-nav a.active{color:var(--brand);border-left-color:var(--brand);background:var(--brand-soft)}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;padding-top:16px;border-top:1px solid var(--line-dark);font-size:13px;color:#7a8783}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container,.container-wide,.nav-inner,.related{padding-left:24px;padding-right:24px}
}
@media (max-width:1023px){
  .nav-menu{display:none}
  .search{display:none}
  .icon-btn{display:none}
  .nav-inner .btn-inline{display:none}
  .nav-toggle{display:flex}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .article-hero{padding:32px 0 80px}
}
@media (max-width:767px){
  .container,.container-wide,.nav-inner,.related{padding-left:16px;padding-right:16px}
  .nav-inner{height:60px;gap:12px}
  .logo-text{font-size:15px}
  .article-hero{padding:28px 0 72px}
  .article-card{padding:24px;margin-top:-40px}
  .article-body{font-size:16px}
  .article-body h2{font-size:20px;margin-top:32px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .related-grid{grid-template-columns:1fr}
  .cta-strip{padding:48px 0;margin-top:56px}
  .cta-strip .cta-inner{flex-direction:column;align-items:flex-start}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .to-top{display:none}
}
@media (max-width:479px){
  .article-hero h1{font-size:30px}
  .article-card{padding:16px}
  .btn{width:100%}
  .btn-inline,.to-top,.cta-link{width:auto}
  .drawer{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .back-row .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --brand:#00D68F;
  --brand-deep:#00A66F;
  --brand-soft:rgba(0,214,143,.12);
  --accent:#6E56CF;
  --hot:#FF6B35;
  --warn:#F5C542;
  --bg-dark:#0B1013;
  --bg-light:#F4F6F5;
  --bg-alt:#EDF1EF;
  --card-dark:#141A1E;
  --card-light:#FFFFFF;
  --line-dark:rgba(255,255,255,.08);
  --line-light:#E2E7E5;
  --text-dark:#F2F6F4;
  --muted-dark:#9AA7A3;
  --text-light:#10161A;
  --body-light:#38423F;
  --muted-light:#55605D;
  --radius-card:10px;
  --radius-btn:8px;
  --shadow-dark:0 0 0 1px var(--line-dark),0 12px 32px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.05);
  --shadow-light:0 0 0 1px #E2E7E5,0 2px 10px rgba(16,22,26,.05);
  --shadow-light-hover:0 0 0 1px #D6DEDB,0 6px 20px rgba(16,22,26,.09);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.85;color:var(--text-light);background:var(--bg-light);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color 160ms var(--ease)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--text-light)}
p{margin:0 0 16px}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.container-wide{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}

/* ---------- 按钮 / 徽章 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:14px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  transition:transform 160ms var(--ease),background 160ms var(--ease),box-shadow 160ms var(--ease),border-color 160ms var(--ease),color 160ms var(--ease);
}
.btn-primary{background:var(--brand);color:#052A1D;box-shadow:0 6px 18px rgba(0,214,143,.22)}
.btn-primary:hover{background:#00C483;transform:translateY(-1px);box-shadow:0 10px 24px rgba(0,214,143,.3)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(0,214,143,.2)}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.22);color:var(--text-dark)}
.btn-ghost:hover{border-color:var(--brand);background:rgba(0,214,143,.08);transform:translateY(-1px)}
.btn-outline{background:#fff;border:1px solid var(--line-light);color:var(--text-light)}
.btn-outline:hover{border-color:var(--brand);background:var(--brand-soft);color:#06301F;transform:translateY(-1px)}
.btn-lg{height:48px;padding:0 26px;font-size:15px}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand-deep);font-size:14px;font-weight:600}
.link-arrow span{transition:transform 160ms var(--ease)}
.link-arrow:hover span{transform:translateX(3px)}
.link-arrow.on-dark{color:var(--brand)}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:3px 9px;
  border:1px solid var(--accent);border-radius:4px;background:rgba(110,86,207,.1);
  color:#5A45B5;font-size:13px;font-weight:600;line-height:1.6;
}
.badge-hot{border-color:var(--hot);background:rgba(255,107,53,.12);color:#C94816}
.badge-brand{border-color:var(--brand-deep);background:var(--brand-soft);color:#046B48}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(11,16,19,.86);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line-dark);
}
.nav-inner{max-width:1280px;margin:0 auto;padding:0 24px;height:68px;display:flex;align-items:center;gap:28px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:34px;height:34px;display:grid;place-items:center;
  font-size:17px;font-weight:800;color:var(--brand);
  border:1px solid var(--brand);border-radius:6px;background:var(--brand-soft);
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
}
.logo-text{color:var(--text-dark);font-size:16px;font-weight:600;letter-spacing:.01em;white-space:nowrap}
.logo-text b{color:var(--brand);font-weight:700}
.nav-menu{display:flex;align-items:center;gap:28px;margin-left:10px}
.nav-menu a{position:relative;font-size:15px;font-weight:500;color:var(--muted-dark);padding:22px 0;letter-spacing:.01em;white-space:nowrap}
.nav-menu a::after{
  content:'';position:absolute;left:0;right:0;bottom:14px;height:2px;background:var(--brand);
  transform:scaleX(0);transform-origin:left;transition:transform 240ms var(--ease);
}
.nav-menu a:hover{color:var(--text-dark)}
.nav-menu a:hover::after{transform:scaleX(1)}
.nav-menu a.active{color:var(--brand)}
.nav-menu a.active::after{transform:scaleX(1)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.search{
  display:flex;align-items:center;gap:8px;width:220px;height:38px;padding:0 8px 0 10px;
  border:1px solid var(--line-dark);border-radius:var(--radius-btn);background:rgba(255,255,255,.04);
  transition:border-color 160ms var(--ease),box-shadow 160ms var(--ease);
}
.search .ico{color:var(--muted-dark);font-size:14px;line-height:1}
.search input{flex:1;min-width:0;background:none;border:0;outline:none;color:var(--text-dark);font-size:13px}
.search input::placeholder{color:#6B7A76}
.search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.kbd{font-size:11px;line-height:1.4;color:var(--muted-dark);border:1px solid var(--line-dark);border-radius:4px;padding:1px 5px}
.icon-btn{
  width:38px;height:38px;display:grid;place-items:center;border:1px solid var(--line-dark);
  border-radius:var(--radius-btn);color:var(--muted-dark);font-weight:700;
  transition:color 160ms var(--ease),border-color 160ms var(--ease),background 160ms var(--ease);
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-soft)}
.btn-inline{height:40px}
.nav-toggle{
  display:none;width:38px;height:38px;place-items:center;border:1px solid var(--line-dark);
  border-radius:var(--radius-btn);color:var(--text-dark);font-size:16px;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}

/* ---------- 移动端抽屉 ---------- */
.nav-overlay{
  position:fixed;inset:0;z-index:110;background:rgba(0,0,0,.6);
  opacity:0;pointer-events:none;transition:opacity 240ms var(--ease);
}
body.nav-open .nav-overlay{opacity:1;pointer-events:auto}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:120;width:280px;max-width:86vw;
  background:var(--card-dark);border-left:1px solid var(--line-dark);
  padding:20px;overflow-y:auto;transform:translateX(100%);
  transition:transform 320ms var(--ease);
}
body.nav-open .nav-drawer{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}
.drawer-head span{color:var(--text-dark);font-size:15px;font-weight:600}
.drawer-close{width:36px;height:36px;display:grid;place-items:center;border:1px solid var(--line-dark);border-radius:8px;color:var(--text-dark)}
.drawer-close:hover{border-color:var(--brand);color:var(--brand)}
.nav-drawer .search{width:100%;margin-bottom:18px}
.drawer-links{display:grid;gap:4px;margin-bottom:22px}
.drawer-links a{padding:11px 12px;border-radius:8px;font-size:15px;color:var(--muted-dark);white-space:normal}
.drawer-links a:hover,.drawer-links a.active{background:var(--brand-soft);color:var(--brand)}
.nav-drawer .btn{width:100%}

/* ---------- 分类首屏 ---------- */
.hero-cat{position:relative;overflow:hidden;background:var(--bg-dark);color:var(--text-dark);padding:76px 0 72px}
.hero-cat .hero-grid{
  position:absolute;inset:0;pointer-events:none;opacity:.65;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:52px 52px;
}
.hero-art{
  position:absolute;right:0;bottom:0;top:0;width:42%;max-width:560px;height:100%;
  object-fit:cover;opacity:.2;pointer-events:none;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 62%);
  mask-image:linear-gradient(90deg,transparent,#000 62%);
}
.hero-cat .container-wide{position:relative;z-index:1}
.crumbs{font-size:13px;color:var(--muted-dark);margin-bottom:18px}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{margin:0 6px;opacity:.6}
.crumbs .now{color:var(--text-dark)}
.hero-cat h1{
  font-size:clamp(28px,3.6vw,40px);font-weight:800;letter-spacing:-.01em;
  color:var(--text-dark);max-width:760px;margin-bottom:14px;
}
.hero-sub{font-size:17px;line-height:1.7;color:var(--muted-dark);max-width:640px;margin:0}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}

/* ---------- 区块通用 ---------- */
.section{padding:88px 0}
.section-alt{background:var(--bg-alt)}
.section-head{margin-bottom:36px;max-width:760px}
.section-head h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:10px}
.section-head p{margin:0;color:var(--muted-light);font-size:15px}

/* ---------- 锚点 + 长文布局 ---------- */
.anchor-layout{display:grid;grid-template-columns:200px minmax(0,1fr);gap:56px;align-items:start}
.toc{position:sticky;top:92px;align-self:start}
.toc-title{font-size:12px;letter-spacing:.14em;font-weight:700;color:var(--muted-light);margin-bottom:14px}
.toc nav{display:grid;gap:2px}
.toc a{
  display:block;padding:9px 0 9px 12px;border-left:2px solid var(--line-light);
  font-size:14px;color:var(--muted-light);
  transition:color 160ms var(--ease),border-color 160ms var(--ease);
}
.toc a:hover{color:var(--text-light);border-color:#C9D2CF}
.toc a.is-current{color:var(--brand-deep);border-color:var(--brand);font-weight:600}

.doc-section{margin-bottom:64px;scroll-margin-top:100px}
.doc-section:last-child{margin-bottom:0}
.doc-section > h2{
  display:flex;align-items:baseline;gap:12px;font-size:clamp(20px,2.2vw,26px);
  padding-top:6px;margin-bottom:18px;
}
.doc-section > h2 .num{font-size:13px;font-weight:800;color:var(--brand-deep);letter-spacing:.06em}
.doc-section p{max-width:780px;color:var(--body-light);font-size:16px;margin-bottom:16px}
.doc-section p:last-child{margin-bottom:0}

/* ---------- 对照卡 ---------- */
.compare{
  margin:24px 0 8px;background:var(--card-light);border:1px solid var(--line-light);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-light);
}
.compare-head{
  padding:12px 18px;font-size:13px;font-weight:700;letter-spacing:.04em;
  color:var(--muted-light);background:#F8FAF9;border-bottom:1px solid var(--line-light);
}
.compare-row{
  display:grid;grid-template-columns:120px minmax(0,1fr);
  border-bottom:1px solid var(--line-light);transition:background 160ms var(--ease);
}
.compare-row:last-child{border-bottom:0}
.compare-row:hover{background:#FAFCFB}
.compare-label{
  display:flex;align-items:center;padding:16px 18px;font-size:14px;font-weight:700;
  color:var(--text-light);background:#F8FAF9;border-right:1px solid var(--line-light);
}
.compare-desc{padding:16px 18px;font-size:15px;color:var(--body-light);line-height:1.8}
.compare-desc strong{color:var(--text-light)}

/* ---------- 流程图 ---------- */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin:28px 0 6px}
.flow-step{position:relative;padding-top:28px}
.flow-step::before{
  content:'';position:absolute;top:6px;left:0;width:14px;height:14px;border-radius:50%;
  background:var(--bg-alt);border:2px solid var(--brand);
}
.flow-step::after{
  content:'';position:absolute;top:12px;left:22px;right:-20px;height:2px;background:var(--line-light);
}
.flow-step:last-child::after{display:none}
.flow-step h3{font-size:16px;margin-bottom:6px}
.flow-step p{margin:0;font-size:14px;color:var(--muted-light);line-height:1.75;max-width:none}

/* ---------- 图文块 ---------- */
.figure{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:0;
  margin:28px 0 8px;background:var(--card-light);border:1px solid var(--line-light);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-light);
  transition:box-shadow 240ms var(--ease);
}
.figure:hover{box-shadow:var(--shadow-light-hover)}
.figure img{width:100%;height:100%;min-height:240px;object-fit:cover}
.figure-txt{padding:30px 30px;display:flex;flex-direction:column;justify-content:center}
.figure-txt h3{font-size:18px;margin-bottom:10px}
.figure-txt p{margin:0;font-size:15px;color:var(--muted-light);max-width:none}

/* ---------- 编号清单 ---------- */
.tip-list{border-top:1px solid var(--line-light);margin-top:24px}
.tip-list li{
  display:grid;grid-template-columns:48px minmax(0,1fr);gap:16px;
  padding:20px 0;border-bottom:1px solid var(--line-light);
  transition:transform 160ms var(--ease);
}
.tip-list li:hover{transform:translateX(4px)}
.tip-list .n{font-size:15px;font-weight:800;color:var(--brand-deep);letter-spacing:-.02em;line-height:1.9}
.tip-list h3{font-size:17px;margin-bottom:6px}
.tip-list p{margin:0;font-size:15px;color:var(--muted-light);max-width:none}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{
  background:var(--card-light);border:1px solid var(--line-light);
  border-radius:var(--radius-card);box-shadow:var(--shadow-light);overflow:hidden;
}
.faq-item[open]{box-shadow:var(--shadow-light-hover)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 20px;font-size:16px;font-weight:600;color:var(--text-light);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:'+';font-size:20px;font-weight:400;color:var(--brand-deep);line-height:1;
  transition:transform 240ms var(--ease);
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:0 20px 18px;font-size:15px;line-height:1.85;color:var(--body-light)}
.faq-body p{margin:0}

/* ---------- CTA 条 ---------- */
.cta-band{position:relative;background:var(--bg-dark);color:var(--text-dark);padding:80px 0;overflow:hidden}
.cta-band .hero-grid{
  position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:52px 52px;
}
.cta-inner{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:36px;
  padding:36px 40px;border:1px solid rgba(255,107,53,.35);border-radius:12px;
  background:linear-gradient(120deg,rgba(0,214,143,.08),rgba(110,86,207,.14));
}
.cta-inner h2{color:var(--text-dark);font-size:clamp(20px,2.4vw,28px);margin-bottom:8px}
.cta-inner p{margin:0;color:var(--muted-dark);font-size:15px}
.cta-actions{display:flex;align-items:center;gap:20px;flex-shrink:0}

/* ---------- 页脚 ---------- */
.site-footer{background:#080C0E;border-top:1px solid var(--line-dark);color:var(--muted-dark);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:32px;padding-bottom:40px}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--muted-dark);margin:16px 0 0;max-width:340px}
.footer-col h4{color:var(--text-dark);font-size:15px;margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--muted-dark);white-space:normal}
.footer-col a:hover{color:var(--brand)}
.footer-note{font-size:14px;line-height:1.8;color:var(--muted-dark);margin:0}
.footer-bottom{
  border-top:1px solid var(--line-dark);padding-top:22px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;font-size:13px;color:var(--muted-dark);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .nav-inner,.container,.container-wide{padding:0 24px}
  .hero-art{width:46%}
}
@media (max-width:1023px){
  .nav-menu,.nav-right .search,.nav-right .icon-btn{display:none}
  .nav-right{gap:10px;margin-left:auto}
  .nav-toggle{display:grid}
  .section{padding:64px 0}
  .anchor-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .toc{position:static}
  .toc nav{display:flex;flex-wrap:wrap;gap:8px}
  .toc a{
    border:1px solid var(--line-light);border-left:2px solid var(--line-light);
    padding:8px 12px;background:#fff;border-radius:8px;
  }
  .toc a.is-current{border-color:var(--brand);background:var(--brand-soft)}
  .hero-cat{padding:64px 0 60px}
  .hero-art{width:52%;opacity:.16}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
  .flow-step:nth-child(2)::after{display:none}
  .figure{grid-template-columns:minmax(0,1fr)}
  .figure img{min-height:200px}
  .figure-txt{padding:24px}
}
@media (max-width:767px){
  .nav-inner{height:60px}
  .logo-text{font-size:15px}
  .section{padding:48px 0}
  .hero-cat{padding:48px 0}
  .hero-sub{font-size:16px}
  .hero-art{display:none}
  .section-head{margin-bottom:26px}
  .doc-section{margin-bottom:48px}
  .compare-row{grid-template-columns:96px minmax(0,1fr)}
  .compare-label{padding:14px 12px;font-size:13px}
  .compare-desc{padding:14px 14px;font-size:14px}
  .cta-inner{padding:28px 22px}
  .cta-actions{width:100%;flex-direction:column;align-items:stretch;gap:14px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .footer-brand{grid-column:1 / -1}
  .figure img{min-height:180px}
  .tip-list li{grid-template-columns:38px minmax(0,1fr);gap:12px}
}
@media (max-width:479px){
  body{font-size:16px}
  .container,.container-wide{padding:0 16px}
  .hero-cat h1{font-size:28px}
  .hero-cat .hero-grid,.cta-band .hero-grid{opacity:.35}
  .btn{width:100%}
  .btn-inline,.icon-btn,.nav-toggle,.drawer-close{width:auto}
  .nav-toggle{width:38px}
  .flow{grid-template-columns:minmax(0,1fr)}
  .flow-step::after{display:none}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .figure-txt{padding:20px}
  .faq-item summary{padding:16px;font-size:15px}
  .faq-body{padding:0 16px 16px}
}

/* roulang page: category2 */
:root{
  --brand:#00D68F;
  --brand-deep:#00A66F;
  --brand-soft:rgba(0,214,143,.12);
  --accent:#6E56CF;
  --accent-soft:rgba(110,86,207,.10);
  --hot:#FF6B35;
  --warn:#F5C542;
  --bg-dark:#0B1013;
  --bg-dark-2:#0F1519;
  --bg-light:#F4F6F5;
  --card-dark:#141A1E;
  --card-light:#FFFFFF;
  --line-dark:rgba(255,255,255,.08);
  --line-light:#E2E7E5;
  --text-dark:#F2F6F4;
  --muted-dark:#9AA7A3;
  --text-light:#10161A;
  --muted-light:#55605D;
  --radius-card:10px;
  --radius-btn:8px;
  --radius-badge:4px;
  --shadow-dark:0 0 0 1px var(--line-dark),0 12px 32px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.05);
  --shadow-light:0 0 0 1px var(--line-light),0 2px 10px rgba(16,22,26,.05);
  --shadow-light-hover:0 0 0 1px var(--line-light),0 6px 20px rgba(16,22,26,.09);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t-fast:160ms;
  --t-mid:240ms;
  --t-slow:320ms;
  --font-cn:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font-cn);font-size:16px;line-height:1.85;color:var(--text-light);background:var(--bg-light);-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#06231A;padding:10px 16px;z-index:200}
.skip-link:focus{left:8px;top:8px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.container-wide{max-width:1280px;margin:0 auto;padding:0 24px}

/* ============ 按钮 / 徽章 / 文字链 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:40px;padding:0 20px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;letter-spacing:.01em;border:1px solid transparent;cursor:pointer;transition:transform var(--t-fast) var(--ease),box-shadow var(--t-mid) var(--ease),background var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease)}
.btn-primary{background:var(--brand);color:#06231A;border-color:var(--brand)}
.btn-primary:hover{background:#14e4a0;transform:translateY(-1px);box-shadow:0 10px 24px rgba(0,214,143,.28)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none}
.btn-ghost{background:transparent;color:var(--text-dark);border-color:rgba(255,255,255,.22)}
.btn-ghost:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-lg{height:48px;padding:0 26px;font-size:16px}
.btn-inline{height:38px;padding:0 16px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand-deep);font-weight:600;font-size:14px;transition:color var(--t-fast) var(--ease)}
.link-arrow i{font-style:normal;transition:transform var(--t-fast) var(--ease)}
.link-arrow:hover{color:var(--brand)}
.link-arrow:hover i{transform:translateX(3px)}
.link-arrow.on-dark{color:var(--brand)}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--radius-badge);font-size:13px;font-weight:600;line-height:1.5;color:var(--accent);border:1px solid rgba(110,86,207,.4);background:var(--accent-soft)}
.badge-hot{color:var(--hot);border-color:rgba(255,107,53,.42);background:rgba(255,107,53,.12)}
.badge-solid{background:var(--brand);color:#06231A;border-color:var(--brand)}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:rgba(11,16,19,.86);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--line-dark)}
.nav-inner{max-width:1280px;margin:0 auto;padding:0 24px;height:68px;display:flex;align-items:center;gap:28px}
.logo{display:flex;align-items:center;gap:10px;color:var(--text-dark);flex:0 0 auto}
.logo-mark{width:30px;height:30px;display:grid;place-items:center;font-size:15px;font-weight:800;color:var(--brand);background:var(--brand-soft);border:1px solid var(--brand);border-radius:4px;clip-path:polygon(8px 0,100% 0,100% 100%,0 100%,0 8px)}
.logo-text{font-size:16px;font-weight:600;letter-spacing:.01em;white-space:nowrap}
.logo-text b{color:var(--brand);font-weight:800}
.nav-menu{display:flex;align-items:center;gap:28px;margin-left:8px}
.nav-menu a{position:relative;font-size:15px;font-weight:500;letter-spacing:.01em;color:var(--muted-dark);padding:6px 0;transition:color var(--t-fast) var(--ease)}
.nav-menu a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--brand);transition:width var(--t-mid) var(--ease)}
.nav-menu a:hover{color:var(--text-dark)}
.nav-menu a:hover::after{width:100%}
.nav-menu a.active{color:var(--brand)}
.nav-menu a.active::after{width:100%}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.search{display:flex;align-items:center;gap:8px;width:220px;height:38px;padding:0 10px;border-radius:8px;background:rgba(255,255,255,.04);border:1px solid var(--line-dark);transition:border-color var(--t-fast) var(--ease),box-shadow var(--t-mid) var(--ease)}
.search .ico{color:var(--muted-dark);font-size:15px}
.search input{flex:1;min-width:0;background:transparent;border:0;outline:none;font-size:14px;color:var(--text-dark)}
.search input::placeholder{color:var(--muted-dark)}
.search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.search .kbd{font-size:11px;color:var(--muted-dark);border:1px solid var(--line-dark);border-radius:4px;padding:1px 5px;line-height:1.5}
.icon-btn{width:36px;height:36px;display:grid;place-items:center;border-radius:8px;color:var(--muted-dark);border:1px solid var(--line-dark);font-size:15px;font-weight:700;transition:color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),background var(--t-fast) var(--ease)}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-soft)}
.nav-toggle{display:none;width:38px;height:38px;border:1px solid var(--line-dark);border-radius:8px;color:var(--text-dark);font-size:16px}
body.nav-open::before{content:"";position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:70}

/* ============ 分类 Hero ============ */
.cat-hero{position:relative;background:var(--bg-dark);color:var(--text-dark);min-height:300px;display:flex;align-items:center;overflow:hidden;border-bottom:1px solid var(--line-dark)}
.cat-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:48px 48px;mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),transparent 85%);pointer-events:none}
.hero-art{position:absolute;right:0;bottom:0;width:44%;max-width:560px;height:100%;background-image:url(/assets/images/backpic/back-2.webp);background-size:cover;background-position:center;opacity:.26;-webkit-mask-image:linear-gradient(to left,rgba(0,0,0,.95),transparent);mask-image:linear-gradient(to left,rgba(0,0,0,.95),transparent)}
.cat-hero .container{position:relative;z-index:2;padding-top:64px;padding-bottom:64px;width:100%}
.hero-body{max-width:660px}
.cat-hero h1{font-size:clamp(30px,4.2vw,46px);line-height:1.18;font-weight:800;letter-spacing:-.01em;margin:18px 0 14px}
.hero-sub{font-size:17px;line-height:1.7;color:var(--muted-dark);max-width:520px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:28px;margin-top:32px;padding-top:24px;border-top:1px solid var(--line-dark)}
.hero-metrics li{display:flex;flex-direction:column;gap:2px}
.hero-metrics strong{font-size:24px;font-weight:800;letter-spacing:-.02em;color:var(--brand)}
.hero-metrics span{font-size:12px;color:var(--muted-dark)}

/* ============ 区块通用 ============ */
.section{padding:88px 0}
.section-light{background:var(--bg-light)}
.section-white{background:#fff;border-top:1px solid var(--line-light);border-bottom:1px solid var(--line-light)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;font-weight:700;letter-spacing:-.01em}
.section-lead{margin-top:12px;font-size:16px;color:var(--muted-light)}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}

/* ============ 标签条 ============ */
.tabbar{display:flex;flex-wrap:wrap;gap:8px;padding:6px;background:#fff;border:1px solid var(--line-light);border-radius:var(--radius-card);margin-bottom:28px}
.tab{height:38px;padding:0 16px;border-radius:8px;font-size:14px;font-weight:600;color:var(--muted-light);border:1px solid transparent;transition:color var(--t-fast) var(--ease),background var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease)}
.tab:hover{color:var(--text-light);background:#F7F9F8}
.tab.is-active{color:var(--brand-deep);background:var(--brand-soft);border-color:rgba(0,166,111,.35)}

/* ============ 错落图文卡 ============ */
.mosaic{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.mosaic-card{background:var(--card-light);border:1px solid var(--line-light);border-radius:var(--radius-card);box-shadow:var(--shadow-light);overflow:hidden;transition:box-shadow var(--t-mid) var(--ease),transform var(--t-mid) var(--ease),border-color var(--t-mid) var(--ease);display:flex;flex-direction:column}
.mosaic-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-light-hover);border-color:rgba(0,214,143,.45)}
.mosaic-card .thumb{position:relative;background:#E7ECEA;overflow:hidden}
.mosaic-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t-slow) var(--ease)}
.mosaic-card:hover .thumb img{transform:scale(1.03)}
.mosaic-card .body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.mosaic-card h3{font-size:19px;font-weight:700;line-height:1.4}
.mosaic-card p{font-size:15px;color:var(--muted-light);line-height:1.8}
.mosaic-card.wide{grid-column:span 2;flex-direction:row}
.mosaic-card.wide .thumb{flex:0 0 54%;min-height:300px}
.mosaic-card.wide .body{padding:32px;justify-content:center}
.mosaic-card.wide h3{font-size:22px}
.thumb-16x9{aspect-ratio:16/9}
.ticks{display:flex;flex-direction:column;gap:8px}
.ticks li{position:relative;padding-left:18px;font-size:14px;color:var(--muted-light);line-height:1.7}
.ticks li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;background:var(--brand)}
.mosaic-card .link-arrow{margin-top:auto;padding-top:6px}

/* 通栏文字卡 */
.text-card{grid-column:span 2;background:#fff;border:1px solid var(--line-light);border-radius:var(--radius-card);box-shadow:var(--shadow-light);padding:32px;display:flex;flex-direction:column;gap:20px;transition:box-shadow var(--t-mid) var(--ease),border-color var(--t-mid) var(--ease)}
.text-card:hover{box-shadow:var(--shadow-light-hover);border-color:rgba(0,214,143,.45)}
.text-card h3{font-size:20px;font-weight:700}
.text-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.text-grid h4{font-size:15px;font-weight:700;margin-bottom:6px;color:var(--text-light)}
.text-grid p{font-size:14px;color:var(--muted-light);line-height:1.8}
.text-card .link-arrow{align-self:flex-start}

/* ============ 对照卡 ============ */
.spec-list{background:#fff;border:1px solid var(--line-light);border-radius:var(--radius-card);box-shadow:var(--shadow-light);overflow:hidden}
.spec-row{display:grid;grid-template-columns:180px 1fr;align-items:stretch}
.spec-row + .spec-row{border-top:1px solid var(--line-light)}
.spec-row dt{padding:18px 20px;font-size:15px;font-weight:700;background:#FAFCFB;border-right:1px solid var(--line-light)}
.spec-row dd{padding:18px 22px;font-size:15px;color:var(--muted-light);line-height:1.8}
.spec-note{margin-top:16px;font-size:13px;color:var(--muted-light)}

/* ============ 流程 ============ */
.steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding-top:8px}
.steps::before{content:"";position:absolute;left:8%;right:8%;top:23px;height:1px;background:var(--line-light)}
.step{position:relative;padding-top:56px}
.step .dot{position:absolute;top:0;left:0;width:32px;height:32px;display:grid;place-items:center;border-radius:50%;background:#fff;border:1px solid rgba(0,214,143,.55);color:var(--brand-deep);font-size:13px;font-weight:800}
.step h3{font-size:17px;font-weight:700;margin-bottom:6px}
.step p{font-size:14px;color:var(--muted-light);line-height:1.8}

/* ============ FAQ ============ */
.faq-list{max-width:860px}
.faq-item{background:#fff;border:1px solid var(--line-light);border-radius:var(--radius-card);box-shadow:var(--shadow-light);margin-bottom:12px;transition:border-color var(--t-mid) var(--ease)}
.faq-item[open]{border-color:rgba(0,214,143,.45)}
.faq-item summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;font-size:16px;font-weight:600;cursor:pointer}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:20px;line-height:1;color:var(--brand);transition:transform var(--t-mid) var(--ease)}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .answer{padding:0 20px 18px;font-size:15px;color:var(--muted-light);line-height:1.85;border-top:1px solid transparent}

/* ============ CTA 条 ============ */
.cta-band{position:relative;background:var(--bg-dark);color:var(--text-dark);padding:72px 0;overflow:hidden;border-top:1px solid rgba(255,107,53,.35)}
.cta-band::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:48px 48px;pointer-events:none}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3}
.cta-inner p{margin-top:10px;color:var(--muted-dark);font-size:15px;max-width:560px}
.cta-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-dark-2);color:var(--muted-dark);border-top:1px solid var(--line-dark);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:32px;padding-bottom:48px}
.footer-brand .logo{margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.85;max-width:320px}
.footer-col h4{font-size:15px;font-weight:700;color:var(--text-dark);margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--muted-dark);transition:color var(--t-fast) var(--ease)}
.footer-col a:hover{color:var(--brand)}
.footer-note{font-size:13px;line-height:1.85;color:var(--muted-dark)}
.footer-bottom{border-top:1px solid var(--line-dark);padding:20px 0 28px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 24px}
  .hero-art{width:40%}
}
@media (max-width:1023px){
  .nav-inner{height:60px;gap:16px}
  .search{display:none}
  .nav-toggle{display:grid;place-items:center}
  .nav-menu{position:fixed;top:0;right:0;width:280px;height:100%;margin:0;padding:84px 24px 24px;flex-direction:column;align-items:flex-start;gap:6px;background:var(--bg-dark-2);border-left:1px solid var(--line-dark);transform:translateX(100%);transition:transform var(--t-slow) var(--ease);z-index:80;overflow-y:auto}
  .nav-menu a{font-size:16px;padding:10px 0;width:100%}
  body.nav-open .nav-menu{transform:none}
  .cat-hero .container{padding-top:48px;padding-bottom:48px}
  .hero-art{width:46%;opacity:.2}
  .section{padding:64px 0}
  .steps{grid-template-columns:repeat(2,1fr);gap:32px}
  .steps::before{display:none}
  .step{padding-top:0;padding-left:48px}
  .step .dot{top:2px}
  .mosaic-card.wide{flex-direction:column}
  .mosaic-card.wide .thumb{flex:none;width:100%;min-height:0;aspect-ratio:16/9}
  .text-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .container,.container-wide{padding:0 16px}
  .nav-inner{padding:0 16px}
  .logo-text{font-size:15px}
  .btn-inline{display:none}
  .cat-hero{min-height:240px}
  .cat-hero h1{margin:14px 0 10px}
  .hero-art{display:none}
  .hero-metrics{gap:20px}
  .section{padding:48px 0}
  .mosaic{grid-template-columns:1fr}
  .mosaic-card.wide,.text-card{grid-column:span 1}
  .text-card{padding:24px}
  .text-grid{grid-template-columns:1fr;gap:18px}
  .spec-row{grid-template-columns:1fr}
  .spec-row dt{border-right:0;border-bottom:1px solid var(--line-light);padding:14px 18px}
  .spec-row dd{padding:14px 18px}
  .steps{grid-template-columns:1fr;gap:24px}
  .ca-inner,.cta-inner{flex-direction:column;align-items:flex-start}
  .cta-inner{padding:0}
  .footer-grid{padding-bottom:32px}
}
@media (max-width:479px){
  body{font-size:15px}
  .cat-hero h1{font-size:30px}
  .hero-sub{font-size:15px}
  .mosaic-card .body{padding:16px}
  .mosaic-card.wide .body{padding:18px}
  .btn{width:100%}
  .btn-inline,.nav-toggle{width:auto}
  .cta-actions{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cat-hero::before{display:none}
}