/* roulang page: index */
:root{
  --c-night:#101318;
  --c-night-2:#171C23;
  --c-paper:#F7F6F1;
  --c-surface:#FFFFFF;
  --c-line:#E3E5DE;
  --c-brand:#B6F034;
  --c-brand-deep:#6E9B0A;
  --c-brand-ink:#16220A;
  --c-accent:#FF6A3D;
  --c-second:#6B4BF0;
  --c-ink-900:#12151A;
  --c-ink-700:#2C333C;
  --c-ink-500:#5C6672;
  --c-ink-300:#9AA3AE;
  --r-card:16px;
  --r-btn:10px;
  --r-img:14px;
  --r-wrap:20px;
  --sh-1:0 1px 2px rgba(18,21,26,.06),0 8px 24px rgba(18,21,26,.06);
  --sh-2:0 12px 32px rgba(18,21,26,.12);
  --t:180ms cubic-bezier(.22,.61,.36,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:84px}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;line-height:1.85;color:var(--c-ink-700);
  background:var(--c-paper);
}
h1,h2,h3,h4{margin:0;color:var(--c-ink-900);letter-spacing:0}
p{margin:0 0 1.2em}
a{color:var(--c-ink-900);text-decoration:none;transition:color var(--t),border-color var(--t),background var(--t)}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:4px}
img{max-width:100%;display:block;border-radius:var(--r-img)}
ul,ol{margin:0 0 1.2em;padding-left:1.4em}
li{margin-bottom:.6em}
button{font-family:inherit;cursor:pointer;border:0;background:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section--paper{background:var(--c-paper)}
.section--white{background:var(--c-surface)}
.section--night{background:var(--c-night)}
.section--night2{background:var(--c-night-2)}
.section-head{max-width:760px;margin-bottom:48px}
.section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.32;font-weight:700}
.section-head h2::after{content:"";display:block;width:40px;height:4px;background:var(--c-brand);border-radius:2px;margin-top:16px}
.section-head p{margin-top:16px;color:var(--c-ink-500);font-size:16px}
.section--night .section-head h2,.section--night2 .section-head h2{color:#fff}
.section--night .section-head p,.section--night2 .section-head p{color:rgba(255,255,255,.66)}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--c-brand-deep);background:rgba(182,240,52,.16);border:1px solid rgba(182,240,52,.5);border-radius:999px;padding:4px 12px;margin-bottom:18px}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;border-radius:var(--r-btn);padding:14px 28px;transition:all var(--t);min-height:44px;line-height:1.2}
.btn-primary{background:var(--c-brand);color:var(--c-brand-ink)}
.btn-primary:hover{background:#c7ff52;transform:translateY(-1px);box-shadow:0 8px 20px rgba(182,240,52,.28)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost-light{border:1px solid rgba(255,255,255,.24);color:#fff}
.btn-ghost-light:hover{border-color:var(--c-brand);color:var(--c-brand);background:rgba(182,240,52,.06)}
.btn-ghost{border:1px solid var(--c-line);color:var(--c-ink-900);background:var(--c-surface)}
.btn-ghost:hover{border-color:var(--c-ink-900);transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-dark{background:var(--c-brand-ink);color:var(--c-brand)}
.btn-dark:hover{background:#20330f;transform:translateY(-1px);box-shadow:0 8px 20px rgba(22,34,10,.24)}
.btn-sm{padding:10px 18px;font-size:14px;min-height:40px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--c-brand-deep);border-bottom:2px solid transparent;padding-bottom:2px}
.link-arrow:hover{color:var(--c-accent);border-bottom-color:var(--c-accent)}

/* 徽章 */
.badge{display:inline-block;font-size:12.5px;font-weight:600;border-radius:999px;padding:4px 10px;line-height:1.4}
.badge-cat{color:var(--c-second);border:1px solid rgba(107,75,240,.45);background:rgba(107,75,240,.1)}
.badge-state{color:var(--c-accent);border:1px solid rgba(255,106,61,.45);background:rgba(255,106,61,.1)}
.badge-dark{color:var(--c-brand);border:1px solid rgba(182,240,52,.4);background:rgba(182,240,52,.1)}

/* 导航 */
.site-header{position:sticky;top:0;z-index:60;background:rgba(16,19,24,.82);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.08);transition:background var(--t),box-shadow var(--t)}
.site-header.is-solid{background:var(--c-night);box-shadow:0 10px 24px rgba(0,0,0,.28)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
.brand .brand-dot{width:10px;height:10px;border-radius:3px;background:var(--c-brand);flex:0 0 auto}
.brand:hover{color:var(--c-brand)}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{position:relative;color:rgba(255,255,255,.76);font-size:14.5px;font-weight:600;padding:9px 12px;border-radius:8px;transition:all var(--t)}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav-link.is-active{color:var(--c-brand)}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--c-brand)}
.header-actions{display:flex;align-items:center;gap:10px}
.icon-btn{width:42px;height:42px;border-radius:10px;border:1px solid rgba(255,255,255,.16);color:rgba(255,255,255,.82);display:inline-flex;align-items:center;justify-content:center;transition:all var(--t)}
.icon-btn:hover{border-color:var(--c-brand);color:var(--c-brand)}
.menu-btn{display:none;width:44px;height:44px;border-radius:10px;border:1px solid rgba(255,255,255,.16);color:#fff;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.menu-btn span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;transition:transform var(--t),opacity var(--t)}
.drawer{position:fixed;top:0;right:0;width:88%;max-width:360px;height:100%;background:var(--c-night-2);border-left:1px solid rgba(255,255,255,.08);padding:88px 24px 32px;transform:translateX(102%);transition:transform 240ms cubic-bezier(.22,.61,.36,1);z-index:70;display:flex;flex-direction:column;gap:6px;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer a.drawer-link{color:rgba(255,255,255,.82);font-size:16px;font-weight:600;padding:0 4px;min-height:44px;display:flex;align-items:center;border-radius:8px}
.drawer a.drawer-link:hover,.drawer a.drawer-link.is-active{color:var(--c-brand);background:rgba(182,240,52,.08)}
.drawer .drawer-cta{margin-top:auto;padding-top:20px}
.drawer-mask{position:fixed;inset:0;background:rgba(8,10,13,.5);opacity:0;pointer-events:none;transition:opacity 240ms;z-index:65}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
body.no-scroll{overflow:hidden}

/* Hero */
.hero{position:relative;background:var(--c-night);color:#fff;padding:calc(68px + 40px) 0 96px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);background-size:22px 22px;opacity:.9;pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center;min-height:min(88vh,720px)}
.hero-copy{grid-column:span 6;max-width:600px}
.hero-copy .eyebrow{color:var(--c-brand);background:rgba(182,240,52,.12);border-color:rgba(182,240,52,.45)}
.hero h1{font-size:clamp(30px,4.4vw,52px);line-height:1.24;font-weight:800;color:#fff}
.hero h1 em{font-style:normal;color:var(--c-brand)}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.72);max-width:520px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:36px;padding-top:26px;border-top:1px solid rgba(255,255,255,.1)}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.78);margin:0;list-style:none}
.hero-points{margin-left:0;padding-left:0;list-style:none}
.hero-points .dot-ico{width:8px;height:8px;border-radius:50%;background:var(--c-brand);flex:0 0 auto}
.hero-visual{grid-column:span 6;position:relative}
.hero-visual img.hero-main{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-wrap);border:1px solid rgba(255,255,255,.1)}
.hero-visual .float-card{position:absolute;left:-28px;bottom:-34px;width:38%;min-width:170px;background:var(--c-night-2);border:1px solid rgba(255,255,255,.12);border-radius:var(--r-img);padding:12px}
.hero-visual .float-card img{aspect-ratio:16/9;object-fit:cover;border-radius:10px}
.hero-visual .float-card p{margin:10px 0 0;font-size:13px;line-height:1.6;color:rgba(255,255,255,.74)}
.hero-stamp{position:absolute;right:-10px;bottom:16px;width:78px;height:78px;border:1px solid var(--c-brand);border-radius:14px;color:var(--c-brand);font-size:12px;line-height:1.3;display:flex;align-items:center;justify-content:center;text-align:center;background:rgba(16,19,24,.72);letter-spacing:.06em}

/* 痛点 */
.pain-list{list-style:none;padding:0;margin:0;max-width:960px}
.pain-item{display:grid;grid-template-columns:56px 1fr;gap:20px;padding:26px 0;border-bottom:1px solid var(--c-line);position:relative}
.pain-item::before{content:"";position:absolute;left:-20px;top:30px;bottom:30px;width:4px;background:var(--c-brand);border-radius:2px}
.pain-num{font-size:20px;font-weight:700;color:var(--c-ink-300);font-variant-numeric:tabular-nums;line-height:1.5}
.pain-item h3{font-size:20px;line-height:1.5;font-weight:600}
.pain-item p{margin:8px 0 0;color:var(--c-ink-500);font-size:15px}

/* 解决方案 交错图文 */
.steps{display:flex;flex-direction:column;gap:72px}
.step-row{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center}
.step-media{grid-column:span 5}
.step-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);border:1px solid var(--c-line)}
.step-body{grid-column:span 7}
.step-row.reverse .step-media{order:2}
.step-row.reverse .step-body{order:1}
.step-body h3{font-size:21px;font-weight:700;line-height:1.5}
.step-body p{margin-top:14px;color:var(--c-ink-700);font-size:15.5px}
.step-body ul{list-style:none;padding:0;margin:18px 0 22px}
.step-body ul li{position:relative;padding-left:20px;font-size:15px;color:var(--c-ink-700)}
.step-body ul li::before{content:"";position:absolute;left:0;top:.68em;width:7px;height:7px;border-radius:2px;background:var(--c-brand)}

/* 成果区 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid rgba(255,255,255,.1);border-radius:var(--r-wrap);overflow:hidden}
.stat{padding:36px 28px;border-right:1px solid rgba(255,255,255,.1)}
.stat:last-child{border-right:0}
.stat b{display:block;font-size:clamp(30px,3.4vw,44px);font-weight:700;color:var(--c-brand);line-height:1.15;font-variant-numeric:tabular-nums}
.stat b.alt{color:var(--c-accent)}
.stat span{display:block;margin-top:12px;font-size:14px;color:rgba(255,255,255,.7)}

/* 证言 */
.quotes{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.quote{position:relative;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1);transition:all var(--t)}
.quote:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.quote .mark{font-size:52px;line-height:1;color:var(--c-brand);opacity:.4;font-weight:800}
.quote p{margin:6px 0 20px;font-size:15.5px;color:var(--c-ink-700)}
.quote footer{display:flex;align-items:center;gap:12px;font-size:14px;color:var(--c-ink-500)}
.avatar{width:48px;height:48px;border-radius:50%;background:var(--c-paper);border:1px solid var(--c-line);display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--c-brand-deep);flex:0 0 auto}

/* 资讯 */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:32px}
.tags-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px}
.tag{font-size:13px;font-weight:600;color:var(--c-ink-500);border:1px solid var(--c-line);background:var(--c-surface);border-radius:999px;padding:6px 14px;transition:all var(--t)}
.tag:hover{color:var(--c-brand-deep);border-color:var(--c-brand);background:rgba(182,240,52,.12)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:all var(--t);overflow-wrap:anywhere}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.news-card__media{aspect-ratio:16/9;background:var(--c-paper);overflow:hidden}
.news-card__media img{width:100%;height:100%;object-fit:cover;border-radius:0}
.news-card__body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-card__title{font-size:19px;line-height:1.5;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card:hover .news-card__title{color:var(--c-brand-deep)}
.news-card__excerpt{margin:0;font-size:14.5px;line-height:1.75;color:var(--c-ink-500);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-card__meta{display:flex;align-items:center;gap:8px;margin-top:auto;font-size:13px;color:var(--c-ink-300)}
.news-card__meta .dot{width:4px;height:4px;border-radius:50%;background:var(--c-ink-300)}
.news-card__meta .read{color:var(--c-brand-deep);font-weight:600}
.news-empty{grid-column:1/-1;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:56px 28px;text-align:center;box-shadow:var(--sh-1)}
.news-empty .empty-ico{width:56px;height:56px;margin:0 auto 18px;border:2px solid var(--c-line);border-radius:14px;display:flex;align-items:center;justify-content:center;color:var(--c-ink-300)}
.news-empty p{margin:0 0 6px;font-size:17px;font-weight:600;color:var(--c-ink-900)}
.news-empty small{display:block;color:var(--c-ink-500);margin-bottom:22px;font-size:14px}
.pager{display:flex;justify-content:center;gap:8px;margin-top:44px}
.pager a,.pager span{width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;border-radius:8px;border:1px solid var(--c-line);background:var(--c-surface);font-size:14px;font-weight:600;color:var(--c-ink-700)}
.pager .is-current{background:var(--c-brand);border-color:var(--c-brand);color:var(--c-brand-ink)}

/* FAQ */
.faq{max-width:800px;margin:0 auto;border-top:1px solid var(--c-line)}
.faq details{border-bottom:1px solid var(--c-line)}
.faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 0;font-size:18px;font-weight:600;color:var(--c-ink-900)}
.faq summary::-webkit-details-marker{display:none}
.faq summary .sign{flex:0 0 auto;width:26px;height:26px;border-radius:8px;border:1px solid var(--c-line);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:600;color:var(--c-ink-500);transition:transform var(--t),color var(--t),border-color var(--t)}
.faq details[open] summary .sign{transform:rotate(45deg);color:var(--c-brand-deep);border-color:var(--c-brand)}
.faq .answer{padding:0 0 24px;font-size:16px;line-height:1.9;color:var(--c-ink-700)}
.faq .answer ul{margin:10px 0 0}

/* CTA */
.cta-wrap{background:var(--c-brand);border-radius:var(--r-wrap);padding:56px 40px;text-align:center;color:var(--c-brand-ink)}
.cta-wrap h2{font-size:clamp(22px,2.4vw,32px);font-weight:800;color:var(--c-brand-ink)}
.cta-wrap p{margin:16px auto 28px;max-width:640px;font-size:16.5px;color:rgba(22,34,10,.78)}
.cta-btns{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}
.cta-wrap .text-link{color:var(--c-brand-ink);font-weight:600;border-bottom:2px solid rgba(22,34,10,.3);padding-bottom:2px}
.cta-wrap .text-link:hover{border-bottom-color:var(--c-brand-ink)}

/* 表单 */
.subscribe{display:flex;gap:12px;margin-top:18px;flex-wrap:wrap}
.subscribe input{flex:1;min-width:180px;height:46px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.05);color:#fff;padding:0 14px;font-size:14px;transition:all var(--t)}
.subscribe input::placeholder{color:rgba(255,255,255,.45)}
.subscribe input:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 2px rgba(182,240,52,.25)}
.subscribe input:disabled{opacity:.45}
.form-hint{font-size:13px;color:var(--c-ink-300);margin-top:10px}
.form-hint.err{color:var(--c-accent)}

/* 页脚 */
.site-footer{background:var(--c-night);color:rgba(255,255,255,.7);border-top:1px solid rgba(255,255,255,.08);padding:72px 0 28px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:800}
.footer-brand .brand-dot{width:10px;height:10px;border-radius:3px;background:var(--c-brand)}
.site-footer p{color:rgba(255,255,255,.6);line-height:1.8;margin-top:16px}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:12px}
.site-footer a{color:rgba(255,255,255,.7)}
.site-footer a:hover{color:var(--c-brand)}
.footer-bottom{margin-top:56px;padding-top:24px;border-top:1px solid rgba(255,255,255,.08);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--c-ink-300)}

/* 返回顶部 */
.to-top{position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:12px;background:var(--c-night);color:var(--c-brand);border:1px solid rgba(255,255,255,.14);display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:all var(--t);z-index:55}
.to-top.is-show{opacity:1;pointer-events:auto}
.to-top:hover{background:var(--c-night-2);transform:translateY(-2px)}

@media (max-width:1024px){
  .container{padding:0 24px}
  .section{padding:64px 0}
  .main-nav{display:none}
  .menu-btn{display:flex}
  .header-actions .icon-btn{display:none}
  .hero-grid{grid-template-columns:1fr;min-height:auto;gap:48px}
  .hero-copy,.hero-visual{grid-column:span 12;max-width:none}
  .hero-visual .float-card{left:auto;right:16px;bottom:-24px;width:44%}
  .hero-stamp{display:none}
  .steps{gap:56px}
  .step-row{grid-template-columns:1fr;gap:20px}
  .step-media,.step-body{grid-column:span 12}
  .step-row.reverse .step-media{order:1}
  .step-row.reverse .step-body{order:2}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat{border-right:1px solid rgba(255,255,255,.1)}
  .stat:nth-child(2n){border-right:0}
  .stat:nth-child(n+3){border-top:1px solid rgba(255,255,255,.1)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  body{font-size:15.5px}
  .container{padding:0 20px}
  .section{padding:48px 0}
  .header-inner{height:56px}
  .brand{font-size:16px}
  .hero{padding:calc(56px + 32px) 0 64px}
  .hero-btns .btn{width:100%}
  .hero-points{gap:10px 18px}
  .quotes{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .cta-wrap{padding:40px 22px}
  .cta-btns .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column}
  .to-top{right:16px;bottom:16px}
  .hero-visual .float-card{position:static;width:100%;margin-top:14px;left:auto;right:auto;bottom:auto}
}
@media (max-width:520px){
  .hero h1{font-size:29px}
  .stats{grid-template-columns:1fr}
  .stat{border-right:0!important}
  .stat:nth-child(n+2){border-top:1px solid rgba(255,255,255,.1)}
  .pain-item{grid-template-columns:40px 1fr;gap:14px}
  .pain-item::before{left:-12px}
  .faq summary{font-size:16.5px}
}

/* roulang page: article */
:root{
  --c-night:#101318;
  --c-night-2:#171C23;
  --c-paper:#F7F6F1;
  --c-surface:#FFFFFF;
  --c-line:#E3E5DE;
  --c-brand:#B6F034;
  --c-brand-deep:#6E9B0A;
  --c-brand-ink:#16220A;
  --c-accent:#FF6A3D;
  --c-second:#6B4BF0;
  --c-ink-900:#12151A;
  --c-ink-700:#2C333C;
  --c-ink-500:#5C6672;
  --c-ink-300:#9AA3AE;
  --r-btn:10px;
  --r-img:14px;
  --r-card:16px;
  --r-lg:20px;
  --sh-1:0 1px 2px rgba(18,21,26,.06), 0 8px 24px rgba(18,21,26,.06);
  --sh-2:0 12px 32px rgba(18,21,26,.12);
  --t:180ms cubic-bezier(.22,.61,.36,1);
  --font:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:88px}
body{
  margin:0;font-family:var(--font);font-size:16px;line-height:1.85;
  color:var(--c-ink-700);background:var(--c-paper);
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--c-ink-900);letter-spacing:0;font-weight:700}
p{margin:0}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(16,19,24,.82);
  border-bottom:1px solid rgba(255,255,255,.08);
  backdrop-filter:blur(12px);
  transition:background var(--t),box-shadow var(--t);
}
.site-header.is-solid{background:var(--c-night);box-shadow:0 8px 26px rgba(0,0,0,.3)}
.header-inner{display:flex;align-items:center;gap:22px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;letter-spacing:.01em;flex:none}
.brand-mark{width:26px;height:26px;border-radius:8px;background:var(--c-brand);position:relative;flex:none}
.brand-mark::before{content:"";position:absolute;left:8px;top:7px;width:8px;height:12px;border:2px solid var(--c-brand-ink);border-right:0;border-radius:2px 0 0 2px}
.brand-mark::after{content:"";position:absolute;right:6px;top:12px;width:6px;height:2px;background:var(--c-brand-ink)}
.main-nav{display:flex;align-items:center;gap:2px}
.nav-link{padding:8px 13px;border-radius:8px;font-size:15px;color:rgba(255,255,255,.76);transition:color var(--t),background var(--t);white-space:nowrap}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav-link.is-active{color:var(--c-brand);background:rgba(182,240,52,.1)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px;flex:none}
.icon-btn{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;color:rgba(255,255,255,.75);border:1px solid rgba(255,255,255,.14);transition:var(--t)}
.icon-btn:hover{color:var(--c-brand);border-color:rgba(182,240,52,.5)}
.menu-toggle{display:none;width:42px;height:42px;align-items:center;justify-content:center;border-radius:10px;border:1px solid rgba(255,255,255,.16);color:#fff}
.menu-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;position:relative}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#fff;border-radius:2px}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}

/* ---------- buttons / badges ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1;
  padding:13px 26px;border:1px solid transparent;transition:var(--t);white-space:nowrap;
}
.btn-primary{background:var(--c-brand);color:var(--c-brand-ink)}
.btn-primary:hover{background:#c7ff52;transform:translateY(-1px);box-shadow:0 10px 24px rgba(182,240,52,.3)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ink{background:var(--c-brand-ink);color:var(--c-brand)}
.btn-ink:hover{background:#22330e;transform:translateY(-1px)}
.btn-ink:active{transform:translateY(1px)}
.btn-ghost{border-color:var(--c-line);color:var(--c-ink-900);background:transparent}
.btn-ghost:hover{border-color:var(--c-brand-deep);color:var(--c-brand-deep)}
.btn-outline-light{border-color:rgba(255,255,255,.24);color:#fff}
.btn-outline-light:hover{border-color:var(--c-brand);color:var(--c-brand)}
.btn-sm{padding:10px 18px;font-size:14px}
.link-more{font-size:14.5px;font-weight:600;color:var(--c-brand-deep);border-bottom:2px solid rgba(110,155,10,.28);padding-bottom:2px;transition:var(--t)}
.link-more:hover{color:var(--c-accent);border-bottom-color:var(--c-accent)}
.badge{display:inline-flex;align-items:center;gap:6px;border-radius:999px;font-size:12.5px;font-weight:600;padding:4px 11px;line-height:1.6}
.badge-cat{color:#d3c6ff;border:1px solid rgba(107,75,240,.55);background:rgba(107,75,240,.14)}
.badge-soft{color:var(--c-brand-deep);border:1px solid rgba(110,155,10,.3);background:rgba(182,240,52,.14)}

/* ---------- article hero ---------- */
.article-hero{background:var(--c-night);color:rgba(255,255,255,.86);padding:38px 0 58px}
.article-hero::after{content:none}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:13px;color:var(--c-ink-300)}
.crumbs a{color:rgba(255,255,255,.62);transition:color var(--t)}
.crumbs a:hover{color:var(--c-brand)}
.crumbs .sep{color:rgba(255,255,255,.22)}
.crumbs .current{color:rgba(255,255,255,.5);max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.hero-tag{font-size:12.5px;color:rgba(255,255,255,.66);border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:5px 12px}
.article-hero h1{
  margin-top:20px;color:#fff;font-weight:800;line-height:1.34;letter-spacing:0;
  font-size:clamp(28px,3.8vw,46px);max-width:960px;
}
.article-lead{margin-top:20px;max-width:820px;font-size:16px;line-height:1.9;color:rgba(255,255,255,.68)}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:24px;font-size:13px;color:var(--c-ink-300)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.28)}
.article-meta .badge-cat{margin-right:2px}

/* ---------- article layout ---------- */
.article-section{padding:56px 0 4px;background:var(--c-paper)}
.article-layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:44px;align-items:start}
.article-main{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:44px 48px 48px;box-shadow:var(--sh-1);min-width:0;
}
.article-body{font-size:17.5px;line-height:1.95;color:var(--c-ink-700);overflow-wrap:anywhere}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.25em}
.article-body h2{
  font-size:clamp(21px,2.1vw,25px);line-height:1.45;color:var(--c-ink-900);
  margin:2em 0 .8em;padding-left:12px;border-left:4px solid var(--c-brand);
}
.article-body h3{font-size:19px;line-height:1.55;color:var(--c-ink-900);margin:1.6em 0 .6em}
.article-body h4{font-size:17px;color:var(--c-ink-900);margin:1.4em 0 .5em}
.article-body img{border-radius:var(--r-img);margin:1.5em auto;max-width:100%}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--c-ink-500);text-align:center;margin-top:10px}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;background:var(--c-paper);
  border-left:3px solid var(--c-brand);border-radius:0 12px 12px 0;color:var(--c-ink-700);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body ul,.article-body ol{padding-left:1.45em;margin:0 0 1.25em}
.article-body li{margin:.6em 0}
.article-body ul li::marker{color:var(--c-brand-deep)}
.article-body a{color:var(--c-second);text-decoration:underline;text-underline-offset:3px;transition:color var(--t)}
.article-body a:hover{color:var(--c-accent)}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:10px 13px;text-align:left;vertical-align:top}
.article-body th{background:var(--c-paper);font-weight:600;color:var(--c-ink-900)}
.article-body tr:nth-child(even) td{background:rgba(247,246,241,.55)}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:2em 0}

/* ---------- aside ---------- */
.article-aside{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px}
.aside-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:22px;overflow:hidden}
.aside-card.has-cover{padding:0}
.aside-cover{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-card) var(--r-card) 0 0}
.aside-body{padding:20px 22px 22px}
.aside-title{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--c-ink-900);margin-bottom:14px}
.aside-title::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--c-brand)}
.toc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;max-height:46vh;overflow:auto}
.toc-list a{
  display:block;font-size:14px;line-height:1.6;color:var(--c-ink-500);
  padding:7px 10px 7px 12px;border-left:2px solid transparent;border-radius:0 8px 8px 0;
  transition:var(--t);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.toc-list a:hover{color:var(--c-ink-900);background:var(--c-paper)}
.toc-list a.is-current{color:var(--c-ink-900);font-weight:600;border-left-color:var(--c-brand);background:rgba(182,240,52,.12)}
.side-note{font-size:13.5px;line-height:1.8;color:var(--c-ink-500)}
.side-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.side-list a{display:flex;align-items:flex-start;gap:8px;font-size:14px;color:var(--c-ink-700);transition:color var(--t)}
.side-list a::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--c-brand);margin-top:8px;flex:none}
.side-list a:hover{color:var(--c-brand-deep)}
.aside-btn{display:flex;justify-content:center;width:100%}

/* ---------- empty state ---------- */
.empty-state{
  text-align:center;padding:66px 26px;border:1px dashed var(--c-line);
  border-radius:var(--r-lg);background:var(--c-surface);
}
.empty-icon{width:56px;height:56px;margin:0 auto 18px;border-radius:16px;border:2px solid var(--c-brand);position:relative}
.empty-icon::before{content:"";position:absolute;left:16px;top:15px;width:14px;height:24px;border:3px solid var(--c-ink-300);border-right:0;border-radius:3px 0 0 3px}
.empty-title{font-size:20px;font-weight:700;color:var(--c-ink-900)}
.empty-desc{margin-top:10px;font-size:15px;color:var(--c-ink-500)}
.empty-state .btn{margin-top:24px}

/* ---------- post nav ---------- */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:44px;padding-top:30px;border-top:1px solid var(--c-line)}
.post-nav-item{
  display:flex;align-items:center;gap:12px;padding:16px 18px;border:1px solid var(--c-line);
  border-radius:var(--r-card);background:var(--c-paper);font-size:14px;color:var(--c-ink-700);
  transition:var(--t);min-width:0;
}
.post-nav-item .nav-dir{font-size:12.5px;color:var(--c-ink-500);flex:none}
.post-nav-item .nav-title{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600}
a.post-nav-item:hover{border-color:var(--c-brand-deep);background:#fff;box-shadow:var(--sh-1)}
.post-nav-item.is-disabled{opacity:.45;cursor:not-allowed;color:var(--c-ink-300)}
.post-nav-item.next{justify-content:flex-end;text-align:right}
.foot-actions{display:flex;justify-content:center;margin-top:34px}

/* ---------- cta ---------- */
.cta-band{padding:56px 0 96px;background:var(--c-paper)}
.cta-box{
  background:var(--c-brand);border-radius:var(--r-lg);padding:56px 44px;text-align:center;
  box-shadow:0 18px 44px rgba(110,155,10,.22);
}
.cta-box h2{font-size:clamp(23px,2.5vw,33px);color:var(--c-brand-ink);line-height:1.35}
.cta-box p{margin:16px auto 0;max-width:620px;font-size:16.5px;line-height:1.85;color:rgba(22,34,10,.78)}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:30px}
.cta-text-link{font-size:15px;font-weight:600;color:var(--c-brand-ink);border-bottom:2px solid rgba(22,34,10,.3);padding-bottom:2px;transition:var(--t);align-self:center}
.cta-text-link:hover{border-bottom-color:var(--c-brand-ink)}

/* ---------- footer ---------- */
.site-footer{background:var(--c-night);border-top:1px solid rgba(255,255,255,.08);padding:64px 0 26px;color:rgba(255,255,255,.68);font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px}
.footer-intro{margin-top:16px;max-width:320px;line-height:1.85;color:rgba(255,255,255,.6);font-size:14px}
.footer-service{display:flex;align-items:center;gap:10px;margin-top:22px;padding:12px 14px;border:1px solid rgba(255,255,255,.1);border-radius:12px;font-size:13.5px;color:rgba(255,255,255,.72);max-width:320px}
.avatar{width:30px;height:30px;border-radius:50%;background:var(--c-brand);color:var(--c-brand-ink);display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:13px;flex:none}
.footer-col h3{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700}
.footer-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
.footer-links a{color:rgba(255,255,255,.66);transition:color var(--t)}
.footer-links a:hover{color:var(--c-brand)}
.footer-contact li{display:flex;gap:8px;align-items:flex-start;color:rgba(255,255,255,.66)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--c-ink-300);
}
.footer-bottom p{max-width:760px;line-height:1.8}

/* ---------- drawer ---------- */
.drawer{position:fixed;inset:0;z-index:90;visibility:hidden;pointer-events:none}
.drawer.is-open{visibility:visible;pointer-events:auto}
.drawer-mask{position:absolute;inset:0;background:rgba(8,10,13,.62);opacity:0;transition:opacity var(--t)}
.drawer.is-open .drawer-mask{opacity:1}
.drawer-panel{
  position:absolute;top:0;right:0;width:88%;max-width:360px;height:100%;
  background:var(--c-night-2);padding:24px 22px;display:flex;flex-direction:column;
  gap:4px;overflow:auto;transform:translateX(100%);
  transition:transform 240ms cubic-bezier(.22,.61,.36,1);border-left:1px solid rgba(255,255,255,.08);
}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-title{color:#fff;font-weight:700;font-size:16px}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.16);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:20px;line-height:1}
.drawer .nav-link{display:flex;align-items:center;min-height:46px;font-size:15.5px;color:rgba(255,255,255,.8);border-radius:10px}
.drawer .nav-link:hover,.drawer .nav-link.is-active{color:var(--c-brand);background:rgba(182,240,52,.1)}
.drawer-cta{margin-top:auto;padding-top:22px}
.drawer-cta .btn{width:100%}

/* ---------- to top ---------- */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:70;width:46px;height:46px;border-radius:14px;
  background:var(--c-night);color:#fff;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.14);box-shadow:0 10px 26px rgba(0,0,0,.25);
  opacity:0;visibility:hidden;transform:translateY(10px);transition:var(--t);
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--c-brand);color:var(--c-brand-ink);border-color:var(--c-brand)}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .container{padding:0 24px}
  .header-inner{gap:16px}
  .nav-link{padding:8px 10px;font-size:14.5px}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:28px}
  .article-aside{position:static;order:-1}
  .toc-list{max-height:none}
  .article-main{padding:36px 32px 40px}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:28px}
  .footer-col--contact{grid-column:1 / -1}
}
@media (max-width:880px){
  .main-nav{display:none}
  .header-actions .btn{display:none}
  .menu-toggle{display:inline-flex}
  .article-hero{padding:28px 0 44px}
  .article-lead{font-size:15.5px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .header-inner{height:60px}
  .icon-btn{width:44px;height:44px}
  .menu-toggle{width:44px;height:44px}
  .article-hero h1{font-size:clamp(25px,6.4vw,32px)}
  .article-section{padding:34px 0 0}
  .article-main{padding:26px 20px 30px;border-radius:var(--r-card)}
  .article-body{font-size:16.5px;line-height:1.9}
  .post-nav{grid-template-columns:1fr}
  .post-nav-item.next{justify-content:flex-start;text-align:left}
  .cta-band{padding:40px 0 66px}
  .cta-box{padding:38px 22px}
  .cta-actions .btn{width:100%}
  .cta-text-link{align-self:center}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:10px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
}
@media (max-width:520px){
  .hero-tag{font-size:12px}
  .article-meta{font-size:12.5px;gap:9px}
  .aside-card{padding:18px}
  .aside-body{padding:16px 18px 18px}
  .to-top{right:16px;bottom:18px}
}

/* roulang page: category1 */
/* ========== 设计变量 ========== */
:root{
  --c-night:#101318;
  --c-night-2:#171C23;
  --c-paper:#F7F6F1;
  --c-surface:#FFFFFF;
  --c-line:#E3E5DE;
  --c-brand:#B6F034;
  --c-brand-deep:#6E9B0A;
  --c-brand-ink:#16220A;
  --c-accent:#FF6A3D;
  --c-second:#6B4BF0;
  --c-ink-900:#12151A;
  --c-ink-700:#2C333C;
  --c-ink-500:#5C6672;
  --c-ink-300:#9AA3AE;
  --sh-1:0 1px 2px rgba(18,21,26,.06),0 8px 24px rgba(18,21,26,.06);
  --sh-2:0 12px 32px rgba(18,21,26,.12);
  --r-card:16px;
  --r-btn:10px;
  --r-img:14px;
  --r-box:20px;
  --ease:180ms cubic-bezier(.22,.61,.36,1);
  --navh:68px;
  --font:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}

/* ========== reset / base ========== */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-700);
  background:var(--c-paper);
  overflow-x:hidden;
}
body.is-locked{overflow:hidden}
h1,h2,h3,h4{margin:0;color:var(--c-ink-900);letter-spacing:0;font-weight:700}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
a{color:inherit;text-decoration:none;transition:color var(--ease)}
img{max-width:100%;display:block;height:auto}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:4px}
::selection{background:var(--c-brand);color:var(--c-brand-ink)}

/* ========== 容器 ========== */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section--paper{background:var(--c-paper)}
.section--white{background:var(--c-surface)}
.section--night{background:var(--c-night);color:rgba(255,255,255,.86)}
.section--night h2,.section--night h3{color:#fff}

/* ========== 排版工具 ========== */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--c-brand);margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-brand);display:block}
.h2-block{margin-bottom:40px;max-width:760px}
.h2-block h2{font-size:clamp(24px,2.6vw,34px);line-height:1.32;position:relative;padding-bottom:18px}
.h2-block h2::after{content:"";position:absolute;left:0;bottom:0;width:40px;height:4px;border-radius:2px;background:var(--c-brand)}
.h2-block p{margin-top:18px;color:var(--c-ink-500);font-size:16px}
.lead{font-size:17px;line-height:1.9;color:var(--c-ink-500)}

/* ========== 按钮 ========== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform var(--ease),background var(--ease),color var(--ease),border-color var(--ease),box-shadow var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--c-brand);color:var(--c-brand-ink)}
.btn-primary:hover{background:#c6ff4d;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{border:1px solid rgba(255,255,255,.24);color:#fff;background:transparent}
.btn-ghost:hover{border-color:var(--c-brand);color:var(--c-brand)}
.btn-ghost:active{transform:translateY(1px)}
.btn-outline{border:1px solid var(--c-line);color:var(--c-ink-900);background:transparent}
.btn-outline:hover{border-color:var(--c-ink-900);background:#fff}
.btn-ink{background:var(--c-brand-ink);color:var(--c-brand)}
.btn-ink:hover{background:#20361a}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-block{width:100%}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-second);
  border-bottom:2px solid transparent;padding-bottom:2px;
  transition:color var(--ease),border-color var(--ease);
}
.text-link:hover{color:var(--c-accent);border-color:var(--c-accent)}

/* ========== 标签 / 徽章 ========== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;line-height:1;
  padding:5px 11px;border-radius:999px;
}
.badge--violet{border:1px solid rgba(107,75,240,.4);background:rgba(107,75,240,.08);color:var(--c-second)}
.badge--accent{border:1px solid rgba(255,106,61,.4);background:rgba(255,106,61,.1);color:#C9421A}
.badge--brand{border:1px solid rgba(110,155,10,.45);background:rgba(182,240,52,.16);color:var(--c-brand-deep)}
.badge--dark{border:1px solid rgba(255,255,255,.22);color:rgba(255,255,255,.86)}

/* ========== 导航 ========== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(16,19,24,.72);
  border-bottom:1px solid rgba(255,255,255,.08);
  backdrop-filter:blur(10px);
  transition:background var(--ease),box-shadow var(--ease);
}
.site-header.is-solid{background:var(--c-night);box-shadow:0 8px 24px rgba(0,0,0,.28)}
.header-inner{display:flex;align-items:center;gap:24px;height:var(--navh)}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:26px;height:26px;border-radius:8px;flex:none;
  background:var(--c-brand);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;left:9px;top:6px;width:8px;height:14px;
  border:2px solid var(--c-brand-ink);border-left:0;border-radius:0 6px 6px 0;
}
.brand-text{font-size:17px;font-weight:700;color:#fff;letter-spacing:.01em;line-height:1}
.main-nav{display:flex;align-items:center;gap:6px;flex:1;min-width:0}
.nav-link{
  font-size:14.5px;font-weight:500;color:rgba(255,255,255,.72);
  padding:9px 13px;border-radius:8px;white-space:nowrap;
  transition:color var(--ease),background var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-link.is-active{color:var(--c-brand);background:rgba(182,240,52,.1)}
.header-actions{display:flex;align-items:center;gap:12px;flex:none;margin-left:auto}
.menu-btn{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid rgba(255,255,255,.18);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.menu-btn span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform var(--ease),opacity var(--ease)}
.menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 抽屉 */
.drawer{
  position:fixed;inset:0 0 0 auto;width:88%;max-width:380px;
  background:var(--c-night-2);z-index:120;
  transform:translateX(102%);transition:transform 260ms cubic-bezier(.22,.61,.36,1);
  display:flex;flex-direction:column;padding:24px 22px;overflow-y:auto;
  border-left:1px solid rgba(255,255,255,.08);
}
.drawer.is-open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.drawer-close{width:44px;height:44px;border-radius:10px;border:1px solid rgba(255,255,255,.18);color:#fff;font-size:20px;line-height:1}
.drawer nav{display:flex;flex-direction:column}
.drawer .nav-link{height:48px;display:flex;align-items:center;font-size:16px;border-radius:10px;padding:0 14px}
.drawer-cta{margin-top:auto;padding-top:24px}
.scrim{
  position:fixed;inset:0;background:rgba(8,10,13,.6);z-index:110;
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
}
.scrim.is-open{opacity:1;visibility:visible}

/* ========== Hero ========== */
.hero{
  position:relative;background:var(--c-night);color:rgba(255,255,255,.86);
  padding:calc(var(--navh) + 24px) 0 88px;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:26px 26px;opacity:.04;pointer-events:none;
}
.hero-inner{position:relative;display:flex;flex-direction:column}
.breadcrumb{font-size:13px;color:var(--c-ink-300);margin-bottom:22px;display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.breadcrumb a{color:var(--c-ink-300)}
.breadcrumb a:hover{color:var(--c-brand)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:rgba(255,255,255,.7)}
.hero-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center}
.hero-copy{grid-column:span 6}
.hero-copy h1{
  color:#fff;font-size:clamp(30px,4.4vw,48px);line-height:1.24;font-weight:800;
  margin-bottom:20px;
}
.hero-copy .hero-sub{font-size:17px;line-height:1.85;color:rgba(255,255,255,.7);max-width:520px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px}
.hero-points{display:flex;flex-wrap:wrap;gap:22px;border-top:1px solid rgba(255,255,255,.1);padding-top:22px}
.hero-point{display:flex;align-items:center;gap:9px;font-size:13.5px;color:rgba(255,255,255,.78)}
.hero-point i{width:8px;height:8px;border-radius:2px;background:var(--c-brand);flex:none;display:block}
.hero-visual{grid-column:span 6;position:relative}
.hero-shot{
  border-radius:var(--r-box);overflow:hidden;border:1px solid rgba(255,255,255,.1);
  aspect-ratio:16/10;
}
.hero-shot img{width:100%;height:100%;object-fit:cover}
.hero-chip{
  position:absolute;left:-24px;bottom:-32px;width:38%;border-radius:var(--r-img);
  overflow:hidden;border:1px solid rgba(255,255,255,.16);box-shadow:0 18px 40px rgba(0,0,0,.4);
  aspect-ratio:4/3;background:var(--c-night-2);
}
.hero-chip img{width:100%;height:100%;object-fit:cover}
.hero-stamp{
  position:absolute;right:-14px;bottom:-16px;
  border:1px solid var(--c-brand);border-radius:10px;
  color:var(--c-brand);font-size:12.5px;font-weight:600;letter-spacing:.06em;
  padding:8px 12px;background:var(--c-night);line-height:1;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}

/* ========== 步骤轴 ========== */
.steps-layout{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:start}
.toc{grid-column:span 4;position:sticky;top:96px}
.toc-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px 20px;box-shadow:var(--sh-1);
}
.toc-title{font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--c-ink-300);margin-bottom:14px}
.toc-link{
  display:flex;gap:12px;align-items:baseline;
  font-size:14.5px;color:var(--c-ink-500);
  padding:9px 0 9px 12px;border-left:2px solid transparent;
  transition:color var(--ease),border-color var(--ease),background var(--ease);
}
.toc-link:hover{color:var(--c-ink-900)}
.toc-link.is-current{color:var(--c-ink-900);font-weight:600;border-left-color:var(--c-brand);background:rgba(182,240,52,.09)}
.toc-link span{font-variant-numeric:tabular-nums;font-size:12.5px;color:var(--c-ink-300)}
.toc-note{margin-top:18px;padding-top:16px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-ink-500);line-height:1.7}

.steps-col{grid-column:span 8;position:relative}
.steps-col::before{
  content:"";position:absolute;left:23px;top:16px;bottom:24px;width:1px;background:var(--c-line);
}
.step{position:relative;padding:0 0 44px 76px}
.step:last-child{padding-bottom:0}
.step-num{
  position:absolute;left:0;top:0;
  width:48px;height:48px;border-radius:50%;
  border:1px solid var(--c-line);background:var(--c-surface);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;color:var(--c-ink-900);
  font-variant-numeric:tabular-nums;
}
.step.is-current .step-num{border-color:var(--c-brand);background:var(--c-brand);color:var(--c-brand-ink)}
.step-head{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:12px}
.step h3{font-size:20px;line-height:1.5}
.step p{font-size:16px;line-height:1.9;color:var(--c-ink-700);margin-bottom:14px}
.step p:last-child{margin-bottom:0}
.step-list{margin:14px 0 0;padding-left:1.4em}
.step-list li{position:relative;margin-bottom:.6em;color:var(--c-ink-700);font-size:15.5px}
.step-list li::before{
  content:"";position:absolute;left:-1.1em;top:.72em;width:7px;height:7px;
  border-radius:2px;background:var(--c-brand);
}
.step-tip{
  margin-top:16px;border-left:3px solid var(--c-brand);background:rgba(182,240,52,.1);
  border-radius:0 10px 10px 0;padding:12px 16px;font-size:14.5px;color:var(--c-ink-700);line-height:1.8;
}
.step-figure{margin-top:20px;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--c-line);aspect-ratio:16/9;background:var(--c-paper)}
.step-figure img{width:100%;height:100%;object-fit:cover}

/* ========== 对照表 ========== */
.table-wrap{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
}
table{width:100%;border-collapse:collapse;font-size:15px}
caption{text-align:left;padding:22px 24px 0;font-size:14px;color:var(--c-ink-500)}
th,td{padding:16px 24px;text-align:left;vertical-align:top;border-bottom:1px solid var(--c-line)}
thead th{background:var(--c-paper);font-size:14px;font-weight:700;color:var(--c-ink-900);letter-spacing:.02em}
tbody tr:last-child td{border-bottom:0}
tbody tr:nth-child(even){background:rgba(247,246,241,.6)}
td:first-child{width:36%;font-weight:600;color:var(--c-ink-900)}

/* ========== 图文对照 ========== */
.split{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center}
.split-media{grid-column:span 5;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line);aspect-ratio:4/3;background:var(--c-paper)}
.split-media img{width:100%;height:100%;object-fit:cover}
.split-body{grid-column:span 7}
.split-body h3{font-size:21px;margin-bottom:14px;line-height:1.5}
.check-list{margin-top:18px}
.check-list li{
  position:relative;padding-left:1.6em;margin-bottom:.7em;font-size:15.5px;color:var(--c-ink-700);
}
.check-list li::before{
  content:"";position:absolute;left:0;top:.6em;width:9px;height:9px;border-radius:3px;
  background:var(--c-brand-deep);opacity:.9;
}

/* ========== FAQ ========== */
.faq-wrap{max-width:800px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item:first-child{border-top:1px solid var(--c-line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;text-align:left;font-size:18px;font-weight:600;color:var(--c-ink-900);
  transition:color var(--ease);
}
.faq-q:hover{color:var(--c-brand-deep)}
.faq-icon{
  position:relative;width:22px;height:22px;flex:none;border-radius:6px;
  border:1px solid var(--c-line);transition:transform var(--ease),background var(--ease),border-color var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-ink-900);border-radius:2px;
  transform:translate(-50%,-50%);transition:opacity var(--ease),background var(--ease);
}
.faq-icon::before{width:10px;height:1.6px}
.faq-icon::after{width:1.6px;height:10px}
.faq-q[aria-expanded="true"] .faq-icon{background:var(--c-brand);border-color:var(--c-brand)}
.faq-q[aria-expanded="true"] .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms cubic-bezier(.22,.61,.36,1)}
.faq-a-inner{padding:0 0 24px;font-size:16px;line-height:1.9;color:var(--c-ink-700)}
.faq-a-inner ul{margin:12px 0 0;padding-left:1.3em}
.faq-a-inner li{position:relative;margin-bottom:.5em}
.faq-a-inner li::before{content:"";position:absolute;left:-1.05em;top:.7em;width:6px;height:6px;border-radius:2px;background:var(--c-brand)}

/* ========== CTA ========== */
.cta-band{background:var(--c-paper);padding:0 0 96px}
.cta-box{
  background:var(--c-brand);border-radius:var(--r-box);
  padding:56px 40px;text-align:center;color:var(--c-brand-ink);
}
.cta-box h2{color:var(--c-brand-ink);font-size:clamp(24px,2.6vw,32px);line-height:1.32;margin-bottom:14px}
.cta-box p{max-width:600px;margin:0 auto 28px;font-size:16.5px;line-height:1.8;color:rgba(22,34,10,.78)}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.cta-box .text-link{color:var(--c-brand-ink);border-color:rgba(22,34,10,.35)}
.cta-box .text-link:hover{color:var(--c-brand-ink);border-color:var(--c-brand-ink);opacity:.8}

/* ========== 页脚 ========== */
.site-footer{background:var(--c-night);color:rgba(255,255,255,.7);border-top:1px solid rgba(255,255,255,.08);padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:300px}
.footer-title{font-size:13px;font-weight:700;letter-spacing:.06em;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.66)}
.footer-links a:hover{color:var(--c-brand)}
.footer-contact{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66)}
.footer-bottom{
  margin-top:56px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--c-ink-300);
}
.footer-bottom a{color:var(--c-ink-300)}
.footer-bottom a:hover{color:var(--c-brand)}

/* 返回顶部 */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:70;
  width:46px;height:46px;border-radius:12px;
  background:var(--c-night);color:var(--c-brand);border:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity var(--ease),visibility var(--ease),transform var(--ease),background var(--ease);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--c-night-2)}

/* ========== 响应式 ========== */
@media (max-width:1024px){
  .container{padding:0 24px}
  .section{padding:64px 0}
  .main-nav{display:none}
  .menu-btn{display:flex}
  .hero{padding:calc(var(--navh) + 20px) 0 64px}
  .hero-copy,.hero-visual{grid-column:span 12}
  .hero-visual{margin-top:40px}
  .hero-chip{left:auto;right:16px;bottom:-24px;width:34%}
  .hero-stamp{display:none}
  .toc{grid-column:span 12;position:static;margin-bottom:32px}
  .toc-card{display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:14px}
  .toc-title{width:100%;margin-bottom:6px}
  .toc-link{border:1px solid var(--c-line);border-radius:999px;padding:8px 14px;background:var(--c-paper)}
  .toc-link.is-current{border-color:var(--c-brand);background:rgba(182,240,52,.16)}
  .toc-note{display:none}
  .steps-col{grid-column:span 12}
  .split-media,.split-body{grid-column:span 12}
  .split-media{aspect-ratio:16/9;margin-bottom:8px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:768px){
  body{font-size:15.5px}
  .container{padding:0 20px}
  .section{padding:48px 0}
  .h2-block{margin-bottom:28px}
  .hero-copy h1{font-size:clamp(27px,7vw,34px)}
  .hero-actions .btn{width:100%}
  .hero-points{gap:14px}
  .steps-col::before{left:19px}
  .step{padding-left:62px;padding-bottom:36px}
  .step-num{width:40px;height:40px;font-size:14px}
  .step h3{font-size:18.5px}
  th,td{padding:13px 16px;font-size:14.5px}
  td:first-child{width:42%}
  .cta-box{padding:40px 22px;border-radius:16px}
  .cta-actions .btn{width:100%}
  .faq-q{font-size:16.5px;padding:18px 0}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:8px}
  .to-top{right:16px;bottom:16px}
}
@media (max-width:520px){
  .hero-chip{width:44%;right:8px}
  .hero-tags{gap:8px}
  .hero-points{flex-direction:column;gap:10px}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --c-night:#101318;
  --c-night-2:#171C23;
  --c-paper:#F7F6F1;
  --c-surface:#FFFFFF;
  --c-line:#E3E5DE;
  --c-brand:#B6F034;
  --c-brand-deep:#6E9B0A;
  --c-brand-ink:#16220A;
  --c-accent:#FF6A3D;
  --c-second:#6B4BF0;
  --c-ink-900:#12151A;
  --c-ink-700:#2C333C;
  --c-ink-500:#5C6672;
  --c-ink-300:#9AA3AE;
  --r-card:16px;
  --r-btn:10px;
  --r-img:14px;
  --r-wrap:20px;
  --sh-1:0 1px 2px rgba(18,21,26,.06),0 8px 24px rgba(18,21,26,.06);
  --sh-2:0 12px 32px rgba(18,21,26,.12);
  --ease:180ms cubic-bezier(.22,.61,.36,1);
  --maxw:1200px;
  --nav-h:68px;
}

/* ============ reset / base ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:88px;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-ink-700);
  background:var(--c-paper);
  overflow-x:hidden;
}
body.is-locked{overflow:hidden;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease);}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:6px;}

/* ============ 容器 / 通用 ============ */
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 32px;}
.section{padding:96px 0;}
.section--paper{background:var(--c-paper);}
.section--white{background:var(--c-surface);}
.section--night{background:var(--c-night-2);color:rgba(255,255,255,.86);}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);
  line-height:1.32;
  font-weight:700;
  color:var(--c-ink-900);
  letter-spacing:0;
}
.section--night .section-head h2{color:#fff;}
.section-head h2::after{
  content:"";
  display:block;
  width:40px;
  height:4px;
  margin-top:16px;
  border-radius:2px;
  background:var(--c-brand);
}
.section-head p{margin-top:18px;color:var(--c-ink-500);font-size:16px;line-height:1.85;}
.section--night .section-head p{color:rgba(255,255,255,.7);}
.lead{color:var(--c-ink-500);font-size:16px;line-height:1.85;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
  white-space:nowrap;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--c-brand);color:var(--c-brand-ink);}
.btn-primary:hover{background:#c7ff52;box-shadow:0 8px 20px rgba(182,240,52,.28);}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.24);color:#fff;}
.btn-ghost:hover{border-color:var(--c-brand);color:var(--c-brand);}
.btn-outline{background:transparent;border-color:var(--c-line);color:var(--c-ink-900);}
.btn-outline:hover{border-color:var(--c-brand-deep);color:var(--c-brand-deep);}
.btn-ink{background:var(--c-night);color:var(--c-brand);}
.btn-ink:hover{background:#1d242e;box-shadow:0 10px 24px rgba(16,19,24,.22);}
.btn-sm{padding:10px 18px;font-size:14px;}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--c-brand-deep);
  border-bottom:1px solid rgba(110,155,10,.35);
  padding-bottom:2px;
}
.link-more:hover{color:var(--c-accent);border-color:var(--c-accent);}
.link-more::after{content:"→";font-weight:400;}

/* ============ 标签 / 徽章 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border-radius:999px;
  font-size:12px;
  line-height:1.6;
  font-weight:600;
  border:1px solid rgba(107,75,240,.35);
  background:rgba(107,75,240,.08);
  color:var(--c-second);
}
.badge--alert{border-color:rgba(255,106,61,.4);background:rgba(255,106,61,.1);color:#C2461F;}
.badge--dark{border-color:rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:rgba(255,255,255,.78);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  background:rgba(16,19,24,.72);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background-color var(--ease),box-shadow var(--ease);
}
.site-header.is-scrolled{background:var(--c-night);box-shadow:0 10px 30px rgba(0,0,0,.24);}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:var(--nav-h);
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:28px;height:28px;border-radius:8px;
  background:linear-gradient(150deg,var(--c-brand),#7FC61C);
  position:relative;
}
.brand-mark::after{
  content:"";
  position:absolute;inset:9px 8px 9px 8px;
  border:2px solid var(--c-brand-ink);
  border-bottom:0;
  border-radius:4px 4px 0 0;
}
.brand-text{color:#fff;font-size:18px;font-weight:700;letter-spacing:.5px;height:34px;display:flex;align-items:center;}
.main-nav{display:flex;align-items:center;gap:6px;flex:1;flex-wrap:wrap;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 14px;
  border-radius:8px;
  font-size:14.5px;
  font-weight:500;
  color:rgba(255,255,255,.72);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06);}
.nav-link.is-active{color:var(--c-brand);background:rgba(182,240,52,.1);}
.nav-link.is-active::after{
  content:"";
  position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--c-brand);
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.icon-btn{
  width:40px;height:40px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.78);
  border:1px solid rgba(255,255,255,.14);
  transition:color var(--ease),border-color var(--ease),background-color var(--ease);
}
.icon-btn:hover{color:var(--c-brand);border-color:var(--c-brand);background:rgba(182,240,52,.06);}
.icon-btn svg{width:18px;height:18px;}
.menu-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid rgba(255,255,255,.14);align-items:center;justify-content:center;}
.menu-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;position:relative;}
.menu-toggle span::before,
.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#fff;border-radius:2px;}
.menu-toggle span::before{top:-6px;}
.menu-toggle span::after{top:6px;}

/* 移动抽屉 */
.drawer{
  position:fixed;
  top:0;right:0;
  width:88%;
  max-width:380px;
  height:100%;
  background:var(--c-night);
  border-left:1px solid rgba(255,255,255,.08);
  z-index:120;
  transform:translateX(102%);
  transition:transform 260ms cubic-bezier(.22,.61,.36,1);
  display:flex;
  flex-direction:column;
  padding:24px 22px 28px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{width:44px;height:44px;border-radius:10px;border:1px solid rgba(255,255,255,.14);color:#fff;font-size:20px;line-height:1;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  min-height:48px;
  display:flex;
  align-items:center;
  color:rgba(255,255,255,.8);
  font-size:16px;
  border-bottom:1px solid rgba(255,255,255,.07);
}
.drawer-nav a.is-active{color:var(--c-brand);}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;}
.drawer-foot .btn{width:100%;}
.scrim{
  position:fixed;inset:0;background:rgba(6,8,11,.6);
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);z-index:110;
}
.scrim.is-open{opacity:1;visibility:visible;}

/* ============ 面包屑 ============ */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,.6);margin-bottom:20px;
}
.crumbs a:hover{color:var(--c-brand);}
.crumbs span.sep{opacity:.5;}
.crumbs .current{color:rgba(255,255,255,.82);}

/* ============ 宽幅 Banner ============ */
.zone-banner{
  position:relative;
  background-image:linear-gradient(rgba(16,19,24,.55),rgba(16,19,24,.62)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  color:#fff;
  padding:56px 0 64px;
  min-height:320px;
  display:flex;
  align-items:center;
}
.zone-banner::after{
  content:"";
  position:absolute;left:0;right:0;bottom:-1px;height:1px;background:rgba(255,255,255,.08);
}
.zone-banner h1{
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.24;
  font-weight:800;
  letter-spacing:0;
  max-width:820px;
  color:#fff;
}
.zone-banner .banner-sub{
  margin-top:18px;
  max-width:640px;
  font-size:16.5px;
  line-height:1.85;
  color:rgba(255,255,255,.78);
}
.banner-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}

/* ============ 标签云 ============ */
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px;}
.tag{
  display:inline-flex;
  align-items:center;
  padding:9px 16px;
  border-radius:999px;
  border:1px solid var(--c-line);
  background:var(--c-surface);
  font-size:14px;
  color:var(--c-ink-700);
  transition:border-color var(--ease),color var(--ease),background-color var(--ease),transform var(--ease);
}
.tag:hover{border-color:var(--c-brand);color:var(--c-brand-deep);background:rgba(182,240,52,.12);transform:translateY(-2px);}
.tag--accent{border-color:rgba(255,106,61,.35);color:#C2461F;background:rgba(255,106,61,.07);}

/* ============ 错位卡片 ============ */
.stagger{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:28px;
  align-items:start;
}
.stagger-col{display:flex;flex-direction:column;gap:28px;}
.stagger-col--offset{margin-top:40px;}
.zone-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.zone-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D3D8CA;}
.zone-card__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#E9EBE4;}
.zone-card__media img{width:100%;height:100%;object-fit:cover;}
.zone-card__body{padding:26px 28px 28px;}
.zone-card__body h3{
  font-size:20px;font-weight:600;line-height:1.5;color:var(--c-ink-900);
}
.zone-card__body p{margin-top:12px;font-size:15px;line-height:1.85;color:var(--c-ink-500);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.zone-card__foot{margin-top:20px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;}
.zone-tip{
  font-size:13px;color:var(--c-ink-300);
}

/* ============ 对照清单 ============ */
.compare{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:28px;
}
.compare-panel{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:30px 32px;
  box-shadow:var(--sh-1);
}
.compare-panel h3{
  font-size:19px;font-weight:600;color:var(--c-ink-900);margin-bottom:20px;
  display:flex;align-items:center;gap:10px;
}
.compare-panel h3 i{
  width:22px;height:22px;border-radius:7px;display:inline-block;flex-shrink:0;
}
.compare-panel--yes h3 i{background:rgba(182,240,52,.32);border:1px solid rgba(110,155,10,.5);}
.compare-panel--no h3 i{background:rgba(255,106,61,.16);border:1px solid rgba(255,106,61,.5);}
.compare-list li{
  position:relative;
  padding:14px 0 14px 30px;
  font-size:15px;
  line-height:1.75;
  color:var(--c-ink-700);
  border-bottom:1px solid var(--c-line);
}
.compare-list li:last-child{border-bottom:0;padding-bottom:0;}
.compare-list li::before{
  content:"";
  position:absolute;left:4px;top:22px;width:9px;height:9px;border-radius:2px;transform:rotate(45deg);
}
.compare-panel--yes .compare-list li::before{background:var(--c-brand-deep);}
.compare-panel--no .compare-list li::before{background:var(--c-accent);}

/* ============ 流程 / 数据条 ============ */
.flow{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;margin-top:8px;}
.flow-step{
  position:relative;
  padding:0 32px 0 0;
  border-left:1px solid rgba(255,255,255,.1);
  padding-left:28px;
}
.flow-step:first-child{border-left:0;padding-left:0;}
.flow-step .num{
  font-size:13px;font-weight:700;color:var(--c-brand);letter-spacing:1px;
  font-variant-numeric:tabular-nums;
}
.flow-step h3{font-size:19px;font-weight:600;color:#fff;margin-top:12px;line-height:1.5;}
.flow-step p{margin-top:10px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.68);}
.stats{
  margin-top:64px;
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  border-top:1px solid rgba(255,255,255,.08);
  padding-top:40px;
}
.stat{padding:0 24px;border-left:1px solid rgba(255,255,255,.08);}
.stat:first-child{border-left:0;padding-left:0;}
.stat .value{
  font-size:clamp(30px,3.4vw,42px);font-weight:700;line-height:1.15;
  color:var(--c-accent);font-variant-numeric:tabular-nums;
}
.stat .value small{font-size:15px;font-weight:600;color:rgba(255,255,255,.7);margin-left:4px;}
.stat .label{margin-top:12px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.62);}

/* ============ 图文说明 ============ */
.split{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:24px;
  align-items:center;
}
.split--reverse .split-media{order:2;}
.split-media{grid-column:span 5;}
.split-body{grid-column:span 7;}
.split--reverse .split-media{grid-column:span 5;}
.split--reverse .split-body{grid-column:span 6;order:1;}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-img);border:1px solid var(--c-line);}
.split-body h2{
  font-size:clamp(22px,2.3vw,30px);line-height:1.34;font-weight:700;color:var(--c-ink-900);
}
.split-body h2::after{content:"";display:block;width:40px;height:4px;border-radius:2px;background:var(--c-brand);margin-top:14px;}
.split-body p{margin-top:18px;font-size:16px;line-height:1.9;color:var(--c-ink-700);}
.split-list{margin-top:20px;}
.split-list li{
  position:relative;padding-left:22px;margin-bottom:12px;font-size:15px;line-height:1.8;color:var(--c-ink-500);
}
.split-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--c-brand);
}

/* ============ CTA ============ */
.cta-bar{
  background:var(--c-brand);
  color:var(--c-brand-ink);
  border-radius:var(--r-wrap);
  padding:56px 48px;
  text-align:center;
}
.cta-bar h2{font-size:clamp(22px,2.6vw,32px);line-height:1.32;font-weight:800;}
.cta-bar p{margin-top:16px;font-size:17px;line-height:1.85;color:rgba(22,34,10,.78);max-width:660px;margin-left:auto;margin-right:auto;}
.cta-actions{margin-top:32px;display:flex;justify-content:center;gap:16px;flex-wrap:wrap;}
.cta-bar .link-more{color:var(--c-brand-ink);border-bottom-color:rgba(22,34,10,.4);}
.cta-bar .link-more:hover{color:#0B1403;border-color:#0B1403;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-night);
  color:rgba(255,255,255,.72);
  border-top:1px solid rgba(255,255,255,.08);
  padding:72px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:32px;
  padding-bottom:56px;
}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:16px;}
.footer-brand .brand-mark{width:26px;height:26px;}
.footer-brand .brand-mark::after{inset:8px 7px 8px 7px;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.58);max-width:320px;}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px;}
.footer-col ul li{margin-bottom:12px;}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.62);}
.footer-col ul a:hover{color:var(--c-brand);}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.62);margin-bottom:12px;display:flex;gap:8px;}
.footer-contact li strong{color:rgba(255,255,255,.82);font-weight:600;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--c-ink-300);
}
.footer-bottom a:hover{color:var(--c-brand);}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:80;
  width:46px;height:46px;border-radius:12px;
  background:var(--c-night);color:var(--c-brand);
  border:1px solid rgba(255,255,255,.12);
  display:inline-flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity var(--ease),visibility var(--ease),transform var(--ease);
  box-shadow:0 10px 24px rgba(16,19,24,.24);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:#1D242E;}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .container{padding:0 24px;}
  .section{padding:64px 0;}
  .main-nav{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-actions .btn{display:none;}
  .stagger-col--offset{margin-top:0;}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px 0;padding-top:32px;}
  .stat:nth-child(3){border-left:0;padding-left:0;}
  .flow{grid-template-columns:1fr;gap:0;}
  .flow-step{border-left:0;padding-left:0;padding-right:0;border-top:1px solid rgba(255,255,255,.1);padding-top:24px;margin-top:24px;}
  .flow-step:first-child{border-top:0;padding-top:0;margin-top:0;}
  .split{grid-template-columns:1fr;gap:28px;}
  .split-media,.split-body,.split--reverse .split-media,.split--reverse .split-body{grid-column:auto;order:0;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:40px 32px;}
}
@media (max-width:768px){
  .section{padding:48px 0;}
  .zone-banner{padding:44px 0 52px;min-height:260px;}
  .stagger{grid-template-columns:1fr;}
  .compare{grid-template-columns:1fr;}
  .cta-bar{padding:40px 24px;}
  .cta-actions .btn,.cta-bar .btn{width:100%;}
  .cta-actions{flex-direction:column;}
  .header-inner{gap:16px;min-height:56px;}
}
@media (max-width:520px){
  .container{padding:0 20px;}
  .brand-text{font-size:16px;}
  .tag{padding:8px 13px;font-size:13.5px;}
  .zone-card__body{padding:22px 20px 24px;}
  .compare-panel{padding:24px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .stats{grid-template-columns:1fr;gap:0;}
  .stat{border-left:0;padding:22px 0 0 0;border-top:1px solid rgba(255,255,255,.08);}
  .stat:first-child{border-top:0;padding-top:0;}
  .to-top{right:16px;bottom:16px;}
}

/* roulang page: category3 */
/* ================= 设计变量 ================= */
:root{
  --c-night:#101318;
  --c-night-2:#171C23;
  --c-paper:#F7F6F1;
  --c-surface:#FFFFFF;
  --c-line:#E3E5DE;
  --c-brand:#B6F034;
  --c-brand-deep:#6E9B0A;
  --c-brand-ink:#16220A;
  --c-accent:#FF6A3D;
  --c-second:#6B4BF0;
  --c-ink-900:#12151A;
  --c-ink-700:#2C333C;
  --c-ink-500:#5C6672;
  --c-ink-300:#9AA3AE;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:16px;
  --r-xl:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,21,26,.06),0 8px 24px rgba(18,21,26,.06);
  --sh-2:0 12px 32px rgba(18,21,26,.12);
  --t:180ms cubic-bezier(.22,.61,.36,1);
  --hdr-h:72px;
}

/* ================= reset / base ================= */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-700);
  background:var(--c-paper);
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:4px}
::selection{background:var(--c-brand);color:var(--c-brand-ink)}

/* ================= 容器 / 排版 ================= */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.sec{padding:92px 0}
.sec--tight{padding:72px 0}
.sec--paper{background:var(--c-paper)}
.sec--white{background:var(--c-surface)}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head h2{
  font-size:clamp(24px,2.6vw,34px);
  line-height:1.32;
  font-weight:700;
  color:var(--c-ink-900);
  letter-spacing:0;
  position:relative;
  padding-left:18px;
}
.sec-head h2::before{
  content:"";
  position:absolute;left:0;top:.28em;
  width:5px;height:.82em;border-radius:3px;background:var(--c-brand);
}
.sec-head p{margin-top:14px;font-size:16px;color:var(--c-ink-500);line-height:1.85}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--c-brand-deep);
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--c-brand-deep);border-radius:2px}

/* ================= 按钮 / 标签 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 26px;
  font-size:15px;font-weight:600;line-height:1.2;
  border-radius:var(--r-sm);
  transition:background-color var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
  white-space:nowrap;
}
.btn-primary{background:var(--c-brand);color:var(--c-brand-ink)}
.btn-primary:hover{background:#C6FF4E;box-shadow:0 10px 24px rgba(182,240,52,.28)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{border:1px solid rgba(255,255,255,.22);color:#fff;background:transparent}
.btn-ghost:hover{border-color:var(--c-brand);color:var(--c-brand)}
.btn-ghost:active{transform:translateY(1px)}
.btn-outline{border:1px solid var(--c-line);color:var(--c-ink-900);background:var(--c-surface)}
.btn-outline:hover{border-color:var(--c-brand-deep);color:var(--c-brand-deep)}
.btn-dark{background:var(--c-brand-ink);color:var(--c-brand)}
.btn-dark:hover{background:#202f10;color:#C6FF4E}
.btn-dark:active{transform:translateY(1px)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;pointer-events:none}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;line-height:1.5;
  border:1px solid rgba(107,75,240,.4);
  background:rgba(107,75,240,.08);
  color:#4A32B8;
}
.tag--dark{border-color:rgba(255,255,255,.24);background:rgba(255,255,255,.06);color:rgba(255,255,255,.86)}
.tag--warn{border-color:rgba(255,106,61,.42);background:rgba(255,106,61,.1);color:#C24423}
.textlink{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--c-ink-900);
  border-bottom:2px solid var(--c-brand);
  padding-bottom:2px;
  transition:color var(--t),border-color var(--t);
}
.textlink:hover{color:var(--c-accent);border-color:var(--c-accent)}

/* ================= 头部导航 ================= */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(16,19,24,.74);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background-color var(--t),box-shadow var(--t);
}
.site-header.is-solid{background:var(--c-night);box-shadow:0 10px 28px rgba(0,0,0,.3)}
.header-inner{display:flex;align-items:center;gap:20px;height:var(--hdr-h)}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:800;color:#fff;letter-spacing:.01em;
  flex-shrink:0;
}
.brand-mark{
  width:13px;height:13px;border-radius:4px;
  background:var(--c-brand);
  box-shadow:0 0 0 4px rgba(182,240,52,.16);
}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:10px;flex-wrap:wrap}
.nav-link{
  display:inline-flex;align-items:center;
  padding:9px 14px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;color:rgba(255,255,255,.72);
  transition:color var(--t),background-color var(--t);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav-link.is-active{color:var(--c-brand);background:rgba(182,240,52,.1)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:var(--r-sm);
  border:1px solid rgba(255,255,255,.18);
  color:rgba(255,255,255,.82);
  transition:border-color var(--t),color var(--t),background-color var(--t);
}
.icon-btn:hover{border-color:var(--c-brand);color:var(--c-brand);background:rgba(182,240,52,.08)}
.icon-btn svg{width:19px;height:19px}
.menu-btn{display:none}
.nav-actions .btn{min-height:42px;padding:10px 20px}
.drawer{
  display:none;
  position:fixed;top:var(--hdr-h);right:0;bottom:0;
  width:88%;max-width:400px;
  background:var(--c-night-2);
  border-left:1px solid rgba(255,255,255,.08);
  padding:24px 24px 32px;
  transform:translateX(100%);
  transition:transform 240ms cubic-bezier(.22,.61,.36,1);
  overflow-y:auto;z-index:99;
}
.drawer.is-open{transform:translateX(0)}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav .nav-link{min-height:48px;font-size:16px;padding:12px 14px}
.drawer-foot{margin-top:26px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);display:flex;flex-direction:column;gap:12px}
.drawer-foot .btn{width:100%}
.drawer-tip{font-size:13px;color:var(--c-ink-300);line-height:1.7}

/* ================= 分类页 Hero ================= */
.cat-hero{
  position:relative;
  background:var(--c-night);
  color:#fff;
  padding:calc(var(--hdr-h) + 54px) 0 78px;
  overflow:hidden;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
  opacity:.26;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(16,19,24,.7) 0%,rgba(16,19,24,.92) 62%,var(--c-night) 100%);
}
.cat-hero .container{position:relative;z-index:2}
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.62);margin-bottom:22px;
}
.crumb a{color:rgba(255,255,255,.72);transition:color var(--t)}
.crumb a:hover{color:var(--c-brand)}
.crumb span.sep{color:rgba(255,255,255,.28)}
.crumb .now{color:rgba(255,255,255,.9)}
.cat-hero h1{
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.24;font-weight:800;letter-spacing:0;
  color:#fff;max-width:900px;
}
.cat-hero h1 em{font-style:normal;color:var(--c-brand)}
.cat-hero .lead{
  margin-top:20px;max-width:720px;
  font-size:17px;line-height:1.9;color:rgba(255,255,255,.82);
}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
.hero-meta{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  margin-top:30px;font-size:13px;color:var(--c-ink-300);
}
.hero-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--c-ink-300)}
.hero-meta strong{color:var(--c-brand);font-weight:600}

/* ================= FAQ 布局 ================= */
.faq-layout{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:48px;
  align-items:start;
}
.faq-main{grid-column:span 8}
.faq-side{grid-column:span 4;position:sticky;top:96px}

.faq-list{border-top:1px solid var(--c-line)}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-q{
  display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  width:100%;padding:22px 4px 22px 0;text-align:left;
  font-size:18px;font-weight:600;line-height:1.6;color:var(--c-ink-900);
  transition:color var(--t);
}
.faq-q:hover{color:var(--c-brand-deep)}
.faq-item.is-open .faq-q{color:var(--c-ink-900)}
.faq-icon{
  position:relative;flex:0 0 auto;
  width:22px;height:22px;margin-top:4px;
  border:1px solid var(--c-line);border-radius:6px;
  transition:border-color var(--t),background-color var(--t);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-ink-700);
  transform:translate(-50%,-50%);
  transition:transform var(--t),background-color var(--t),opacity var(--t);
}
.faq-icon::before{width:10px;height:1.6px}
.faq-icon::after{width:1.6px;height:10px}
.faq-item.is-open .faq-icon{border-color:var(--c-brand);background:rgba(182,240,52,.16)}
.faq-item.is-open .faq-icon::before{background:var(--c-brand-deep)}
.faq-item.is-open .faq-icon::after{opacity:0;transform:translate(-50%,-50%) rotate(90deg)}
.faq-a{padding:0 40px 24px 0;font-size:16px;line-height:1.9;color:var(--c-ink-500)}
.faq-a p+p{margin-top:12px}
.faq-a ul{margin-top:12px}
.faq-a li{
  position:relative;padding-left:1.35em;margin-bottom:.5em;
  line-height:1.85;
}
.faq-a li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:6px;height:6px;border-radius:2px;background:var(--c-brand);
}
.faq-a strong{color:var(--c-ink-900);font-weight:600}

/* 快捷入口卡 */
.side-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:26px 24px;
}
.side-card h3{
  font-size:19px;font-weight:700;color:var(--c-ink-900);line-height:1.5;
}
.side-card .side-sub{margin-top:8px;font-size:14px;color:var(--c-ink-500);line-height:1.7}
.side-links{margin-top:18px;border-top:1px solid var(--c-line)}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  min-height:48px;padding:12px 0;
  border-bottom:1px solid var(--c-line);
  font-size:15px;font-weight:600;color:var(--c-ink-900);
  transition:color var(--t),padding-left var(--t);
}
.side-links a:hover{color:var(--c-brand-deep);padding-left:4px}
.side-links a span.arrow{color:var(--c-ink-300);font-weight:400;transition:color var(--t),transform var(--t)}
.side-links a:hover span.arrow{color:var(--c-brand-deep);transform:translateX(2px)}
.side-card .btn{width:100%;margin-top:20px}
.side-note{
  margin-top:16px;padding-top:16px;border-top:1px dashed var(--c-line);
  font-size:13px;color:var(--c-ink-500);line-height:1.7;
}

/* ================= 图文说明 ================= */
.split{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:48px;align-items:center;
}
.split-media{grid-column:span 5}
.split-body{grid-column:span 7}
.split--flip .split-media{order:2}
.split--flip .split-body{order:1}
.split-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-lg);
  border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
}
.split-body h3{
  font-size:21px;font-weight:700;line-height:1.5;color:var(--c-ink-900);
  margin-bottom:16px;
}
.split-body p{font-size:16px;line-height:1.9;color:var(--c-ink-700)}
.split-body p+p{margin-top:14px}
.check-list{margin-top:20px;display:grid;gap:12px}
.check-list li{
  position:relative;padding-left:30px;font-size:15px;line-height:1.8;color:var(--c-ink-700);
}
.check-list li::before{
  content:"";position:absolute;left:0;top:.42em;
  width:16px;height:16px;border-radius:5px;background:rgba(182,240,52,.28);
  box-shadow:inset 0 0 0 1px rgba(110,155,10,.5);
}
.check-list li::after{
  content:"";position:absolute;left:5px;top:.66em;
  width:6px;height:3px;border-left:1.8px solid var(--c-brand-deep);
  border-bottom:1.8px solid var(--c-brand-deep);
  transform:rotate(-45deg);
}

/* ================= 数据条 ================= */
.stat-row{
  background:var(--c-night-2);border-radius:var(--r-xl);
  padding:38px 32px;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;
}
.stat-row .stat{position:relative;padding-right:24px}
.stat-row .stat+.stat{border-left:1px solid rgba(255,255,255,.08);padding-left:24px}
.stat-row .num{
  font-size:clamp(28px,3vw,40px);font-weight:700;line-height:1.1;
  color:var(--c-brand);font-variant-numeric:tabular-nums;
}
.stat-row .num small{font-size:16px;font-weight:600;margin-left:4px;color:rgba(255,255,255,.7)}
.stat-row .desc{margin-top:10px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.7)}

/* ================= CTA ================= */
.cta-band{padding:0 0 96px}
.cta-box{
  background:var(--c-brand);
  border-radius:var(--r-xl);
  padding:56px 48px;
  text-align:center;
}
.cta-box h2{
  font-size:clamp(22px,2.6vw,32px);
  line-height:1.3;font-weight:800;color:var(--c-brand-ink);
}
.cta-box p{
  margin:16px auto 0;max-width:620px;
  font-size:16px;line-height:1.85;color:rgba(22,34,10,.82);
}
.cta-actions{
  display:flex;align-items:center;justify-content:center;gap:16px;
  flex-wrap:wrap;margin-top:28px;
}
.cta-actions .textlink{color:var(--c-brand-ink);border-color:rgba(22,34,10,.35)}
.cta-actions .textlink:hover{color:#3A1F12;border-color:#3A1F12}

/* ================= 页脚 ================= */
.site-footer{
  background:var(--c-night);
  color:rgba(255,255,255,.72);
  border-top:1px solid rgba(255,255,255,.08);
  padding:68px 0 28px;
}
.foot-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;
}
.foot-brand .brand{font-size:18px}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:320px}
.foot-note{
  display:inline-flex;align-items:center;gap:10px;
  margin-top:20px;padding:10px 14px;
  border:1px solid rgba(255,255,255,.1);border-radius:var(--r-pill);
  font-size:13px;color:rgba(255,255,255,.72);
}
.avatar{
  display:inline-flex;align-items:center;justify-content:center;
  width:26px;height:26px;border-radius:50%;
  background:rgba(182,240,52,.18);color:var(--c-brand);
  font-size:12px;font-weight:700;
}
.foot-col h4{
  font-size:14px;font-weight:700;color:#fff;letter-spacing:.04em;margin-bottom:18px;
}
.foot-col ul{display:grid;gap:12px}
.foot-col a{font-size:14px;color:rgba(255,255,255,.66);transition:color var(--t)}
.foot-col a:hover{color:var(--c-brand)}
.foot-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6)}
.foot-contact li{font-size:14px;color:rgba(255,255,255,.66);line-height:1.8}
.foot-bottom{
  margin-top:48px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--c-ink-300);
}
.foot-bottom a{color:var(--c-ink-300)}
.foot-bottom a:hover{color:var(--c-brand)}

/* ================= 返回顶部 ================= */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:80;
  width:44px;height:44px;border-radius:var(--r-sm);
  background:var(--c-night);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.12);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity var(--t),transform var(--t),visibility var(--t),background-color var(--t);
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--c-brand);color:var(--c-brand-ink);border-color:var(--c-brand)}
.to-top svg{width:18px;height:18px}

/* ================= 响应式 ================= */
@media (max-width:1100px){
  .main-nav{gap:0}
  .nav-link{padding:9px 10px;font-size:14px}
}
@media (max-width:1024px){
  .main-nav{display:none}
  .menu-btn{display:inline-flex}
  .drawer{display:block}
  .faq-layout{gap:32px}
  .faq-main{grid-column:span 12}
  .faq-side{grid-column:span 12;position:static;order:-1}
  .split{gap:32px}
  .split-media{grid-column:span 12}
  .split-body{grid-column:span 12}
  .split--flip .split-media{order:0}
  .split--flip .split-body{order:0}
  .split-media img{aspect-ratio:16/9}
  .stat-row{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .stat-row .stat:nth-child(3){border-left:0;padding-left:0}
  .stat-row .stat{padding-right:0}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px 24px}
}
@media (max-width:768px){
  .container{padding:0 24px}
  .sec{padding:64px 0}
  .sec--tight{padding:52px 0}
  .sec-head{margin-bottom:32px}
  .cat-hero{padding:calc(var(--hdr-h) + 34px) 0 56px}
  .cat-hero .lead{font-size:16px}
  .nav-actions .btn{display:none}
  .faq-q{font-size:17px;padding:18px 0;gap:14px}
  .faq-a{padding-right:0;font-size:15.5px}
  .cta-box{padding:40px 24px}
  .cta-band{padding-bottom:64px}
  .site-footer{padding:52px 0 24px}
  .stat-row{padding:28px 22px;gap:24px}
}
@media (max-width:520px){
  .container{padding:0 20px}
  :root{--hdr-h:60px}
  .brand{font-size:17px}
  .hero-tags{gap:8px}
  .stat-row{grid-template-columns:1fr;gap:20px}
  .stat-row .stat+.stat{border-left:0;border-top:1px solid rgba(255,255,255,.08);padding-left:0;padding-top:20px}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn,.cta-actions .textlink{justify-content:center;width:100%}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .to-top{right:16px;bottom:16px}
}