/* roulang page: index */
/* ===== 设计变量 ===== */
:root{
  --c-primary:#0E3B2E;
  --c-accent:#C9FF4D;
  --c-sand:#E8E2D6;
  --c-bg:#F5F3EE;
  --c-ink:#101312;
  --c-text:#1A1D1B;
  --c-text-2:#5C6259;
  --c-text-3:#8B9088;
  --c-on-dark:#F2F1EC;
  --c-on-dark-2:#B9BEB2;
  --line:#E2DFD6;
  --line-dark:rgba(255,255,255,.14);
  --r-card:4px;
  --r-btn:3px;
  --shadow-1:0 1px 2px rgba(16,19,18,.06);
  --shadow-2:0 8px 24px rgba(16,19,18,.10);
  --ease:cubic-bezier(.2,.7,.2,1);
  --container:1280px;
}

/* ===== reset / base ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5,p,figure{margin:0;}
input{font:inherit;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:2px;}
::selection{background:var(--c-accent);color:var(--c-primary);}

/* ===== 容器 ===== */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}

/* ===== 通用组件 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 28px;border-radius:var(--r-btn);font-weight:600;font-size:15px;border:1px solid transparent;transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);white-space:nowrap;cursor:pointer;}
.btn-primary{background:var(--c-accent);color:var(--c-primary);}
.btn-primary:hover{background:var(--c-primary);color:var(--c-accent);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{border-color:var(--line);color:var(--c-text);background:transparent;}
.btn-ghost:hover{background:var(--c-sand);}
.btn-light-outline{border-color:rgba(255,255,255,.35);color:var(--c-on-dark);background:transparent;}
.btn-light-outline:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.6);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn:disabled,.btn[disabled]{opacity:.45;transform:none;box-shadow:none;cursor:not-allowed;}

.link-arrow{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15px;color:var(--c-primary);transition:gap .2s var(--ease);}
.link-arrow:hover{gap:13px;}
.link-arrow .arw{transition:transform .2s var(--ease);}
.link-arrow:hover .arw{transform:translateX(2px);}
.link-arrow-light{color:var(--c-accent);}

.tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;font-size:12px;font-weight:500;letter-spacing:.06em;border-radius:2px;background:var(--c-sand);color:var(--c-text-2);}
.tag-outline{background:transparent;border:1px solid var(--line);}
.tag-dark{background:rgba(255,255,255,.1);color:var(--c-on-dark-2);}

.meta-row{display:flex;align-items:center;gap:16px;font-size:13px;color:var(--c-text-3);letter-spacing:.02em;}
.meta-row .meta-arrow{margin-left:auto;color:var(--c-primary);font-weight:600;transition:transform .2s var(--ease);}

/* ===== 导航 ===== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:80;height:68px;display:flex;align-items:center;background:transparent;border-bottom:1px solid transparent;transition:height .24s var(--ease),background-color .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);}
.site-header.is-scrolled{height:60px;background:rgba(245,243,238,.96);border-bottom-color:var(--line);box-shadow:0 1px 2px rgba(16,19,18,.05);backdrop-filter:blur(10px);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%;}
.brand{display:inline-flex;align-items:baseline;gap:5px;font-size:20px;letter-spacing:-.01em;white-space:nowrap;}
.brand .brand-mark{width:8px;height:8px;background:var(--c-accent);display:inline-block;align-self:center;flex:0 0 8px;}
.brand strong{font-weight:800;}
.brand span{font-weight:500;font-size:16px;}
.nav-links{display:flex;align-items:center;gap:26px;}
.nav-links a{position:relative;display:inline-block;font-size:14.5px;font-weight:500;padding:6px 0;color:var(--c-text);transition:color .2s var(--ease);}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--c-accent);transition:width .2s var(--ease);}
.nav-links a:hover::after{width:100%;}
.nav-links a.is-active::after{width:100%;height:2px;background:var(--c-primary);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{width:40px;height:40px;display:grid;place-items:center;border-radius:3px;border:1px solid transparent;color:var(--c-text);transition:background-color .2s var(--ease),border-color .2s var(--ease);}
.icon-btn:hover{background:var(--c-sand);}
.icon-btn svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.hamburger{display:none;}

/* 搜索条 */
.search-bar{position:fixed;top:0;left:0;right:0;z-index:90;background:var(--c-bg);border-bottom:1px solid var(--line);transform:translateY(-102%);transition:transform .26s var(--ease);}
.search-bar.is-open{transform:translateY(0);}
.search-inner{display:flex;align-items:center;gap:16px;height:76px;}
.search-inner input{flex:1;height:48px;padding:0 16px;border:1px solid var(--line);border-radius:3px;background:#fff;color:var(--c-text);transition:border-color .2s var(--ease),box-shadow .2s var(--ease);}
.search-inner input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 2px var(--c-accent);}

/* 移动抽屉 */
.drawer-overlay{position:fixed;inset:0;background:rgba(16,19,18,.42);opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility .28s var(--ease);z-index:99;}
.drawer-overlay.is-open{opacity:1;visibility:visible;}
.drawer{position:fixed;top:0;right:0;width:86vw;max-width:380px;height:100%;background:var(--c-bg);z-index:100;transform:translateX(100%);transition:transform .28s var(--ease);display:flex;flex-direction:column;padding:24px;box-shadow:-12px 0 40px rgba(16,19,18,.14);overflow-y:auto;}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:20px;border-bottom:1px solid var(--line);}
.drawer-close{font-size:24px;line-height:1;width:40px;height:40px;display:grid;place-items:center;border-radius:3px;}
.drawer-close:hover{background:var(--c-sand);}
.drawer-nav{display:flex;flex-direction:column;padding:16px 0;flex:1;}
.drawer-nav a{font-size:20px;font-weight:500;padding:12px 0;border-bottom:1px solid var(--line);transition:color .2s var(--ease),padding-left .2s var(--ease);}
.drawer-nav a:hover{color:var(--c-primary);padding-left:6px;}
.drawer-nav a.is-active{color:var(--c-primary);font-weight:600;}
.drawer-foot{padding-top:20px;border-top:1px solid var(--line);}
.drawer-foot .btn{width:100%;}

/* ===== 首屏 ===== */
.page-main{padding-top:68px;}
.hero{padding:56px 0 88px;}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;align-items:stretch;}
.hero-left{padding-right:56px;border-right:1px solid var(--line);display:flex;flex-direction:column;justify-content:center;}
.hero-right{padding-left:56px;}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:500;letter-spacing:.06em;color:var(--c-text-2);}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--c-primary);}
.hero-title{font-size:clamp(34px,5.2vw,64px);font-weight:800;letter-spacing:-.02em;line-height:1.12;margin-top:22px;max-width:13em;}
.hero-title .bar{display:block;width:72px;height:6px;background:var(--c-accent);margin-top:24px;}
.hero-sub{margin-top:24px;font-size:17px;line-height:1.85;color:var(--c-text-2);max-width:32em;}
.hero-actions{margin-top:34px;display:flex;align-items:center;gap:22px;flex-wrap:wrap;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:44px;padding-top:24px;border-top:1px solid var(--line);font-size:13px;letter-spacing:.03em;color:var(--c-text-2);}
.hero-meta li{display:flex;align-items:center;gap:8px;}
.hero-meta li::before{content:"";width:5px;height:5px;background:var(--c-accent);border:1px solid var(--c-primary);}
.hero-media{position:relative;height:600px;border-radius:var(--r-card);overflow:hidden;background:var(--c-sand);}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(16,19,18,.05),rgba(16,19,18,.3));}
.hero-badge{position:absolute;left:24px;bottom:24px;z-index:2;display:flex;align-items:baseline;gap:10px;background:var(--c-accent);color:var(--c-primary);padding:12px 18px;border-radius:3px;}
.hero-badge b{font-size:26px;font-weight:400;line-height:1;font-variant-numeric:tabular-nums;}
.hero-badge em{font-style:normal;font-size:12px;font-weight:600;letter-spacing:.08em;}

/* ===== 板块通用 ===== */
.section{padding:96px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;padding-top:24px;margin-bottom:40px;border-top:1px solid var(--line);}
.section-title{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.25;letter-spacing:-.01em;}
.section-desc{margin-top:12px;font-size:15.5px;color:var(--c-text-2);max-width:48em;}
.section-tight{padding-top:0;}
.scale-rule{height:1px;background:repeating-linear-gradient(90deg,var(--line) 0 1px,transparent 1px 14px);margin:0 0 40px;}

/* 主题封面 */
.feature-cover{display:grid;grid-template-columns:1.15fr 1fr;border-radius:var(--r-card);overflow:hidden;background:var(--c-ink);color:var(--c-on-dark);box-shadow:var(--shadow-1);}
.feature-cover-media{position:relative;min-height:360px;background:var(--c-sand);}
.feature-cover-media img{width:100%;height:100%;object-fit:cover;}
.feature-cover-body{padding:52px 48px;display:flex;flex-direction:column;justify-content:center;gap:18px;}
.feature-cover-body h3{font-size:clamp(22px,2.2vw,30px);font-weight:700;line-height:1.3;}
.feature-cover-body p{font-size:15.5px;line-height:1.9;color:var(--c-on-dark-2);}
.feature-cover-lead{font-size:16px;color:var(--c-on-dark);}

/* 合集目录 */
.index-list{border-top:1px solid var(--line);}
.index-row{display:grid;grid-template-columns:88px 1fr auto 30px;align-items:center;gap:24px;padding:22px 8px 22px 4px;border-bottom:1px solid var(--line);transition:transform .2s var(--ease),background-color .2s var(--ease),padding-left .2s var(--ease);}
.index-row:hover{transform:translateX(6px);background:var(--c-sand);}
.index-num{font-size:clamp(28px,3vw,42px);font-weight:300;line-height:1;color:var(--c-text-3);font-variant-numeric:tabular-nums;letter-spacing:-.02em;transition:color .2s var(--ease);}
.index-row:hover .index-num{color:var(--c-primary);}
.index-name{font-size:19px;font-weight:600;line-height:1.4;}
.index-name small{display:block;font-size:13px;font-weight:400;color:var(--c-text-3);letter-spacing:.02em;margin-top:4px;}
.index-count{font-size:13px;letter-spacing:.06em;color:var(--c-text-2);white-space:nowrap;}
.index-arrow{font-size:18px;color:var(--c-text-3);text-align:right;transition:color .2s var(--ease),transform .2s var(--ease);}
.index-row:hover .index-arrow{color:var(--c-primary);transform:translateX(2px);}

/* 精选条目 */
.story{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;padding:36px 0;}
.story + .story{border-top:1px solid var(--line);}
.story.is-reverse .story-media{order:2;}
.story-media{position:relative;border-radius:var(--r-card);overflow:hidden;background:var(--c-sand);aspect-ratio:16/10;}
.story-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease);}
.story:hover .story-media img{transform:scale(1.04);}
.story-body h3{font-size:clamp(20px,2vw,26px);font-weight:700;line-height:1.4;margin-top:16px;transition:color .2s var(--ease);}
.story:hover .story-body h3{color:var(--c-primary);}
.story-body p{margin-top:14px;font-size:15.5px;color:var(--c-text-2);max-width:34em;}
.story-body .meta-row{margin-top:22px;}

/* 最新信息 */
.news-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:52px;}
.news-grid.is-single{grid-template-columns:1fr;max-width:760px;}
.news-main{display:block;border-radius:var(--r-card);transition:transform .2s var(--ease);}
.news-main:hover{transform:translateY(-2px);}
.news-main-media{position:relative;aspect-ratio:16/9;border-radius:var(--r-card);overflow:hidden;background:var(--c-sand);margin-bottom:22px;}
.news-main-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease);}
.news-main:hover .news-main-media img{transform:scale(1.04);}
.news-main h3{font-size:clamp(20px,2.1vw,26px);font-weight:700;line-height:1.4;margin-top:14px;}
.news-main:hover h3{color:var(--c-primary);}
.news-main p{margin-top:12px;color:var(--c-text-2);font-size:15.5px;}
.news-main .meta-row{margin-top:20px;}
.news-list{display:flex;flex-direction:column;}
.news-item{display:block;padding:20px 0;border-bottom:1px solid var(--line);transition:padding-left .2s var(--ease);}
.news-item:first-child{padding-top:0;}
.news-item:hover{padding-left:6px;}
.news-item h4{font-size:17px;font-weight:600;line-height:1.5;transition:color .2s var(--ease);}
.news-item:hover h4{color:var(--c-primary);}
.news-item p{margin-top:8px;font-size:14.5px;color:var(--c-text-2);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.news-item .meta-row{margin-top:10px;font-size:12.5px;}
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;min-height:260px;border:1px dashed var(--line);border-radius:var(--r-card);background:rgba(232,226,214,.35);text-align:center;padding:32px;}
.empty-state .empty-mark{width:44px;height:44px;border:1px solid var(--c-text-3);border-radius:50%;display:grid;place-items:center;font-size:20px;color:var(--c-text-3);}
.empty-state p{color:var(--c-text-2);font-size:15px;}

/* 相关推荐 */
.reco-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 52px;}
.reco-item{display:flex;align-items:center;gap:18px;padding:18px 0;border-bottom:1px solid var(--line);transition:transform .2s var(--ease);}
.reco-item:hover{transform:translateX(5px);}
.reco-thumb{flex:0 0 64px;width:64px;height:64px;border-radius:3px;overflow:hidden;background:var(--c-sand);}
.reco-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease);}
.reco-item:hover .reco-thumb img{transform:scale(1.06);}
.reco-body h4{font-size:16px;font-weight:600;line-height:1.5;transition:color .2s var(--ease);}
.reco-item:hover .reco-body h4{color:var(--c-primary);}
.reco-body span{display:block;margin-top:6px;font-size:12.5px;color:var(--c-text-3);letter-spacing:.03em;}

/* CTA */
.cta-band{background:var(--c-ink);color:var(--c-on-dark);border-radius:var(--r-card);padding:64px 56px 48px;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.cta-band h2{font-size:clamp(22px,2.4vw,32px);font-weight:700;line-height:1.3;max-width:22em;}
.cta-band p{margin-top:14px;color:var(--c-on-dark-2);font-size:15.5px;max-width:38em;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-scale{height:1px;margin-top:46px;background:repeating-linear-gradient(90deg,rgba(255,255,255,.3) 0 1px,transparent 1px 14px);}

/* FAQ */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{display:flex;align-items:center;gap:18px;width:100%;padding:24px 0;text-align:left;font-size:18px;font-weight:600;line-height:1.5;transition:color .2s var(--ease);}
.faq-q:hover{color:var(--c-primary);}
.faq-num{font-size:13px;font-weight:500;letter-spacing:.08em;color:var(--c-text-3);font-variant-numeric:tabular-nums;flex:0 0 auto;}
.faq-icon{margin-left:auto;width:18px;height:18px;position:relative;flex:0 0 18px;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;transition:transform .24s var(--ease);}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);}
.faq-item.is-open .faq-q{color:var(--c-primary);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease);}
.faq-a-inner{padding:0 0 26px 36px;font-size:15.5px;line-height:1.9;color:var(--c-text-2);max-width:74ch;}

/* 页脚 */
.site-footer{background:var(--c-ink);color:var(--c-on-dark-2);padding:72px 0 30px;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px;}
.footer-brand .brand{color:var(--c-on-dark);font-size:19px;}
.footer-brand p{margin-top:16px;font-size:14.5px;line-height:1.85;color:var(--c-on-dark-2);max-width:26em;}
.footer-title{font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--c-on-dark);margin-bottom:16px;}
.footer-links a,.footer-links span{display:block;font-size:14.5px;color:var(--c-on-dark-2);padding:6px 0;transition:color .2s var(--ease);}
.footer-links a:hover{color:var(--c-accent);}
.footer-bottom{margin-top:52px;padding-top:22px;border-top:1px solid var(--line-dark);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--c-on-dark-2);}

/* 提示条 */
.toast{position:fixed;left:50%;bottom:32px;transform:translate(-50%,20px);background:var(--c-ink);color:var(--c-on-dark);font-size:14px;padding:12px 20px;border-radius:3px;opacity:0;pointer-events:none;transition:opacity .24s var(--ease),transform .24s var(--ease);z-index:120;max-width:90vw;}
.toast.is-show{opacity:1;transform:translate(-50%,0);}

/* 入场动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{transform:none;transition:opacity .42s linear;}
  *{scroll-behavior:auto !important;}
  .story:hover .story-media img,.news-main:hover .news-main-media img,.reco-item:hover .reco-thumb img{transform:none;}
}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .container{padding:0 28px;}
  .hero-left{padding-right:40px;}
  .hero-right{padding-left:40px;}
  .hero-media{height:540px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .nav-links{display:none;}
  .nav-cta{display:none;}
  .hamburger{display:grid;}
  .hero{padding:40px 0 64px;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-left{padding-right:0;border-right:none;padding-bottom:36px;border-bottom:1px solid var(--line);}
  .hero-right{padding-left:0;padding-top:36px;}
  .hero-media{height:340px;}
  .section{padding:64px 0;}
  .feature-cover{grid-template-columns:1fr;}
  .feature-cover-media{min-height:260px;}
  .feature-cover-body{padding:36px 28px;}
  .news-grid{grid-template-columns:1fr;gap:36px;}
  .reco-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .cta-band{padding:48px 32px 36px;}
}
@media (max-width:767px){
  .story{grid-template-columns:1fr;gap:22px;padding:28px 0;}
  .story.is-reverse .story-media{order:0;}
  .index-row{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 16px;padding:18px 4px;}
  .index-num{font-size:26px;flex:0 0 auto;}
  .index-name{font-size:17px;flex:1 1 auto;}
  .index-name small{display:none;}
  .index-count{flex:1 0 100%;}
  .index-arrow{display:none;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;}
  .footer-grid{grid-template-columns:1fr;}
  .faq-q{font-size:16px;gap:12px;padding:20px 0;}
  .faq-a-inner{padding-left:28px;font-size:15px;}
}
@media (max-width:519px){
  .container{padding:0 20px;}
  body{line-height:1.8;}
  .section{padding:48px 0;}
  .btn{width:100%;}
  .hero-actions{gap:14px;}
  .hero-actions .btn{width:100%;}
  .hero-media{height:260px;}
  .hero-badge{left:16px;bottom:16px;padding:10px 14px;}
  .hero-badge b{font-size:20px;}
  .brand{font-size:17px;}
  .brand span{font-size:14px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-band{padding:36px 22px 28px;}
  .cta-actions{width:100%;}
}

/* roulang page: article */
:root{
  --c-primary:#0E3B2E;
  --c-primary-600:#0a2c22;
  --c-accent:#C9FF4D;
  --c-sand:#E8E2D6;
  --c-bg:#F5F3EE;
  --c-ink:#101312;
  --t-1:#1A1D1B;
  --t-2:#5C6259;
  --t-3:#8B9088;
  --t-inv-1:#F2F1EC;
  --t-inv-2:#B9BEB2;
  --line:#E2DFD6;
  --line-inv:rgba(255,255,255,.14);
  --r-card:4px;
  --r-btn:3px;
  --sh-1:0 1px 2px rgba(16,19,18,.06);
  --sh-2:0 8px 24px rgba(16,19,18,.10);
  --container:1280px;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--t-1);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-card);}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease);}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.section{padding:96px 0;}
.section-sm{padding:64px 0;}
.eyebrow{
  font-size:12px;font-weight:600;letter-spacing:.14em;color:var(--t-3);
  text-transform:uppercase;display:inline-flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--c-primary);display:inline-block;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.section-head h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.25;letter-spacing:-.01em;}
.section-head p{color:var(--t-2);font-size:15px;}
.text-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--c-primary);
  border-bottom:1px solid transparent;padding-bottom:2px;
}
.text-link:hover{border-bottom-color:var(--c-accent);}
.text-link .arrow{transition:transform .2s var(--ease);}
.text-link:hover .arrow{transform:translateX(4px);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.01em;line-height:1;cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease);
}
.btn-primary{background:var(--c-accent);color:var(--c-primary);}
.btn-primary:hover{background:var(--c-primary);color:var(--c-accent);box-shadow:var(--sh-2);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--sh-1);}
.btn-ghost{background:transparent;color:var(--t-1);border-color:var(--line);}
.btn-ghost:hover{background:var(--c-sand);border-color:var(--c-sand);}
.btn-outline-inv{background:transparent;color:var(--t-inv-1);border-color:var(--line-inv);}
.btn-outline-inv:hover{background:rgba(255,255,255,.08);border-color:var(--c-accent);color:var(--c-accent);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:500;letter-spacing:.06em;
  padding:4px 10px;border-radius:2px;background:var(--c-sand);color:var(--t-2);
}
.badge-outline{background:transparent;border:1px solid var(--line);color:var(--t-2);}
.badge-inv{background:rgba(255,255,255,.08);color:var(--t-inv-2);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(245,243,238,.88);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid transparent;
  transition:background-color .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled{background:rgba(245,243,238,.97);border-bottom-color:var(--line);box-shadow:0 1px 2px rgba(16,19,18,.05);}
.header-inner{display:flex;align-items:center;gap:32px;height:68px;transition:height .24s var(--ease);}
.site-header.is-scrolled .header-inner{height:60px;}
.logo{display:inline-flex;align-items:baseline;gap:2px;flex-shrink:0;}
.brand{display:inline-flex;align-items:center;gap:9px;font-size:19px;letter-spacing:-.01em;}
.brand-mark{width:8px;height:8px;background:var(--c-accent);display:inline-block;flex-shrink:0;transform:translateY(-1px);}
.brand strong{font-weight:800;color:var(--t-1);}
.brand span{font-weight:500;font-size:16px;color:var(--t-2);}
.nav-links{display:flex;align-items:center;gap:30px;margin-right:auto;}
.nav-links a{
  position:relative;font-size:14.5px;font-weight:500;color:var(--t-2);padding:6px 0;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--c-accent);
  transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
.nav-links a:hover{color:var(--t-1);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--c-primary);font-weight:600;}
.nav-links a.is-active::after{height:2px;background:var(--c-primary);transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:transparent;border-radius:var(--r-btn);color:var(--t-2);
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.icon-btn:hover{background:var(--c-sand);color:var(--t-1);border-color:var(--c-sand);}
.menu-toggle{display:none;}
.search-bar{
  display:none;border-top:1px solid var(--line);background:rgba(245,243,238,.98);
  padding:16px 0;
}
.search-bar.is-open{display:block;}
.search-form{display:flex;gap:12px;}
.search-form input{
  flex:1;height:48px;padding:0 16px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;color:var(--t-1);font-size:15px;font-family:inherit;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-form input::placeholder{color:var(--t-3);}
.search-form input:focus{outline:none;border-color:var(--c-accent);box-shadow:0 0 0 2px var(--c-accent);}

/* ============ 抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,19,18,.5);opacity:0;visibility:hidden;
  transition:opacity .24s var(--ease),visibility .24s var(--ease);z-index:180;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:86vw;max-width:380px;background:var(--c-bg);
  z-index:190;transform:translateX(100%);transition:transform .28s var(--ease);
  display:flex;flex-direction:column;padding:24px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:32px;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:32px;}
.drawer-nav a{
  font-size:20px;font-weight:500;padding:14px 0;border-bottom:1px solid var(--line);color:var(--t-1);
}
.drawer-nav a:hover{color:var(--c-primary);}

/* ============ 文章头部 ============ */
.article-hero{
  background:var(--c-bg);
  border-bottom:1px solid var(--line);
  padding:40px 0 48px;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--t-3);margin-bottom:28px;}
.breadcrumb a{color:var(--t-3);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb li{display:inline-flex;align-items:center;gap:10px;}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--c-primary);font-weight:600;}
.article-hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:56px;align-items:end;}
.article-title{
  font-size:clamp(28px,3.6vw,46px);font-weight:800;line-height:1.18;letter-spacing:-.02em;
  max-width:900px;
}
.hero-cover{
  aspect-ratio:16/9;background:var(--c-sand);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);
}
.hero-cover img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:16px;
  margin-top:24px;font-size:13px;color:var(--t-3);letter-spacing:.04em;
  font-variant-numeric:tabular-nums;
}
.meta-row .divider{width:1px;height:12px;background:var(--line);display:inline-block;}

/* ============ 正文布局 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:56px;
  padding:64px 0 96px;
}
.article-main{max-width:760px;width:100%;margin:0 auto;}
.article-body{font-size:17px;line-height:1.9;color:var(--t-1);}
.article-body > * + *{margin-top:1.3em;}
.article-body p{margin:0;}
.article-body h2{
  font-size:clamp(22px,2.2vw,28px);font-weight:700;line-height:1.35;letter-spacing:-.01em;
  margin-top:40px;margin-bottom:16px;padding-left:14px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;background:var(--c-accent);
}
.article-body h3{font-size:20px;font-weight:600;line-height:1.4;margin-top:32px;margin-bottom:12px;}
.article-body h4{font-size:17px;font-weight:600;margin-top:24px;margin-bottom:10px;}
.article-body a{color:var(--c-primary);border-bottom:1px solid var(--c-accent);}
.article-body a:hover{background:var(--c-accent);}
.article-body ul,.article-body ol{padding-left:1.4em;margin:1.3em 0;}
.article-body ul li{list-style:disc;margin-bottom:.5em;}
.article-body ol li{list-style:decimal;margin-bottom:.5em;}
.article-body li::marker{color:var(--c-primary);}
.article-body blockquote{
  border-left:3px solid var(--c-accent);background:var(--c-sand);
  padding:20px 24px;border-radius:0 var(--r-card) var(--r-card) 0;color:var(--t-2);
}
.article-body blockquote p{margin:0;}
.article-body img{width:100%;margin:24px 0;border-radius:var(--r-card);}
.article-body figcaption,.article-body .caption{font-size:13px;color:var(--t-3);text-align:center;margin-top:-12px;margin-bottom:24px;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.article-body th,.article-body td{padding:12px 14px;border:1px solid var(--line);text-align:left;}
.article-body th{background:var(--c-sand);font-weight:600;font-size:14px;letter-spacing:.02em;}
.article-body pre{
  background:var(--c-sand);padding:18px 20px;border-radius:var(--r-card);overflow-x:auto;
  font-size:14px;line-height:1.7;
}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  background:var(--c-sand);padding:2px 6px;border-radius:2px;font-size:.92em;
}
.article-body pre code{background:none;padding:0;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0;}

.article-empty{
  border:1px dashed var(--line);border-radius:var(--r-card);padding:56px 32px;text-align:center;
  background:#fff;
}
.article-empty h2{font-size:22px;font-weight:700;margin-bottom:12px;}
.article-empty p{color:var(--t-2);margin-bottom:24px;}

/* ============ 侧栏 ============ */
.article-side{position:relative;}
.side-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:28px;}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;}
.side-title{
  font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--t-3);
  padding-bottom:12px;border-bottom:1px solid var(--line);margin-bottom:8px;
}
.side-list li{border-bottom:1px solid var(--line);}
.side-list li:last-child{border-bottom:none;}
.side-list a{display:block;padding:14px 0;font-size:14.5px;line-height:1.6;color:var(--t-2);}
.side-list a:hover{color:var(--c-primary);}
.side-list .side-meta{display:block;font-size:12px;color:var(--t-3);margin-top:6px;letter-spacing:.04em;}
.side-cta{background:var(--c-ink);color:var(--t-inv-1);}
.side-cta .side-title{color:var(--t-inv-2);border-bottom-color:var(--line-inv);}
.side-cta p{font-size:14px;color:var(--t-inv-2);margin:12px 0 18px;line-height:1.75;}
.side-cta .btn{width:100%;}

/* ============ 相关推荐 ============ */
.related{margin-top:56px;padding-top:32px;border-top:1px solid var(--line);}
.related h2{font-size:20px;font-weight:700;margin-bottom:8px;}
.related-list li{border-bottom:1px solid var(--line);}
.related-list li:last-child{border-bottom:none;}
.related-list a{display:flex;align-items:baseline;justify-content:space-between;gap:20px;padding:20px 0;}
.related-list .rt{font-size:16px;font-weight:600;line-height:1.5;transition:color .2s var(--ease);}
.related-list a:hover .rt{color:var(--c-primary);}
.related-list .rd{font-size:12.5px;color:var(--t-3);white-space:nowrap;font-variant-numeric:tabular-nums;}

/* ============ 底部操作 ============ */
.article-actions{
  margin-top:40px;padding-top:28px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
}
.share-group{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ CTA 段 ============ */
.cta-band{background:var(--c-ink);color:var(--t-inv-1);}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:48px;
  padding:72px 0 56px;
}
.cta-band h2{font-size:clamp(24px,2.8vw,36px);font-weight:700;line-height:1.25;letter-spacing:-.01em;max-width:560px;}
.cta-band p{color:var(--t-inv-2);margin-top:14px;max-width:520px;font-size:15px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex-shrink:0;}
.cta-ruler{height:1px;background:var(--line-inv);position:relative;}
.cta-ruler::after{
  content:"";position:absolute;left:0;top:-3px;width:120px;height:7px;
  background-image:repeating-linear-gradient(90deg,var(--line-inv) 0 1px,transparent 1px 9px);
  background-size:9px 7px;
}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:var(--t-inv-2);padding:72px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:48px;}
.footer-brand .brand strong{color:var(--t-inv-1);}
.footer-brand .brand span{color:var(--t-inv-2);}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.8;max-width:340px;color:var(--t-inv-2);}
.footer-title{font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--t-inv-1);margin-bottom:18px;}
.footer-links{display:flex;flex-direction:column;gap:12px;font-size:14px;}
.footer-links a,.footer-links span{color:var(--t-inv-2);}
.footer-links a{display:inline-block;border-bottom:1px solid transparent;padding-bottom:1px;}
.footer-links a:hover{color:var(--c-accent);border-bottom-color:var(--c-accent);}
.footer-bottom{
  margin-top:56px;padding-top:22px;border-top:1px solid var(--line-inv);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--t-inv-2);
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion: reduce){
  .reveal{transform:none;transition:opacity .3s linear;}
  html{scroll-behavior:auto;}
  .btn:hover,.related-list a:hover .rt{transform:none;}
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 32px;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;padding:56px 0 80px;}
  .article-main{margin:0;max-width:820px;}
  .article-side{margin-top:56px;}
  .side-sticky{position:static;}
  .article-hero-grid{grid-template-columns:minmax(0,1fr) 280px;gap:40px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-actions .btn-sm{display:none;}
  .section{padding:64px 0;}
  .article-hero-grid{grid-template-columns:minmax(0,1fr);gap:28px;align-items:start;}
  .hero-cover{max-width:640px;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:28px;padding:56px 0 44px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .section{padding:48px 0;}
  .header-inner{height:60px;gap:16px;}
  .brand{font-size:17px;}
  .brand span{font-size:14px;}
  .article-hero{padding:28px 0 36px;}
  .article-body{font-size:16.5px;line-height:1.9;}
  .article-layout{padding:40px 0 64px;}
  .btn{width:100%;}
  .share-group{width:100%;}
  .cta-actions{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .related-list a{flex-direction:column;gap:6px;}
}
@media (max-width:479px){
  .container{padding:0 20px;}
  .article-title{font-size:clamp(24px,7vw,30px);}
  .article-body h2{padding-left:12px;}
  .article-body table{font-size:14px;}
  .footer-brand p{max-width:none;}
}

/* roulang page: category1 */
:root{
  --c-primary:#0E3B2E;
  --c-primary-soft:#155240;
  --c-accent:#C9FF4D;
  --c-sand:#E8E2D6;
  --c-sand-deep:#DCD5C5;
  --c-bg:#F5F3EE;
  --c-surface:#FFFFFF;
  --c-ink:#101312;
  --c-text:#1A1D1B;
  --c-text-2:#5C6259;
  --c-text-3:#8B9088;
  --c-on-dark:#F2F1EC;
  --c-on-dark-2:#B9BEB2;
  --line:#E2DFD6;
  --line-dark:rgba(255,255,255,.14);
  --radius-card:4px;
  --radius-btn:3px;
  --shadow-1:0 1px 2px rgba(16,19,18,.06);
  --shadow-2:0 8px 24px rgba(16,19,18,.10);
  --ease:cubic-bezier(.2,.7,.2,1);
  --dur:200ms;
  --w-container:1280px;
  --w-body:1200px;
  --space-section:96px;
  --space-section-md:64px;
  --space-section-sm:48px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease),background-color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform var(--dur) var(--ease);}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
input{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
.container{
  width:100%;
  max-width:var(--w-container);
  margin:0 auto;
  padding:0 32px;
}
.section{padding:var(--space-section) 0;}
.section-tight{padding:64px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);
  font-weight:700;
  line-height:1.25;
  letter-spacing:-.01em;
}
.section-head p{
  color:var(--c-text-2);
  font-size:15px;
  margin-top:10px;
  max-width:640px;
}
.link-more{
  font-size:14px;
  font-weight:600;
  color:var(--c-primary);
  display:inline-flex;
  align-items:center;
  gap:6px;
  white-space:nowrap;
}
.link-more::after{content:"→";transition:transform var(--dur) var(--ease);}
.link-more:hover::after{transform:translateX(4px);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  border:1px solid transparent;
  transition:all var(--dur) var(--ease);
  cursor:pointer;
}
.btn-primary{
  background:var(--c-accent);
  color:var(--c-primary);
  border-color:var(--c-accent);
}
.btn-primary:hover{
  background:var(--c-primary);
  color:var(--c-accent);
  border-color:var(--c-primary);
  box-shadow:var(--shadow-2);
  transform:translateY(-2px);
}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{
  background:transparent;
  color:var(--c-primary);
  border-color:var(--line);
}
.btn-ghost:hover{background:var(--c-sand);border-color:var(--c-sand-deep);}
.btn-ghost:active{transform:translateY(1px);}
.btn-on-dark{
  background:var(--c-accent);
  color:var(--c-primary);
}
.btn-on-dark:hover{background:#fff;color:var(--c-primary);}
.btn-outline-dark{
  background:transparent;
  color:var(--c-on-dark);
  border-color:var(--line-dark);
}
.btn-outline-dark:hover{background:rgba(255,255,255,.08);border-color:var(--c-accent);color:var(--c-accent);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;transform:none;}

/* ---------- tags ---------- */
.tag{
  display:inline-block;
  font-size:12px;
  font-weight:500;
  letter-spacing:.06em;
  padding:3px 8px;
  border-radius:2px;
  background:var(--c-sand);
  color:var(--c-text-2);
  line-height:1.6;
}
.tag-line{
  background:transparent;
  border:1px solid var(--line);
  color:var(--c-text-2);
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(245,243,238,.92);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid transparent;
  transition:background-color 240ms var(--ease),border-color 240ms var(--ease),box-shadow 240ms var(--ease);
}
.site-header.is-stuck{
  background:#F7F5F0;
  border-bottom-color:var(--line);
  box-shadow:0 1px 12px rgba(16,19,18,.05);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:68px;
  transition:height 240ms var(--ease);
}
.site-header.is-stuck .header-inner{height:60px;}
.brand{
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  font-size:19px;
  letter-spacing:-.01em;
  color:var(--c-primary);
  flex:0 0 auto;
}
.brand-mark{
  width:8px;
  height:8px;
  border-radius:2px;
  background:var(--c-accent);
  align-self:center;
  display:inline-block;
  margin-right:2px;
}
.brand strong{font-weight:800;}
.brand span:not(.brand-mark){font-weight:500;font-size:16px;}
.nav-links{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:12px;
}
.nav-links a{
  position:relative;
  font-size:14.5px;
  font-weight:500;
  color:var(--c-text);
  padding:6px 0;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:100%;
  height:1px;
  background:var(--c-accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.nav-links a:hover{color:var(--c-primary);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--c-primary);font-weight:600;}
.nav-links a.is-active::after{height:2px;background:var(--c-primary);transform:scaleX(1);}
.header-right{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.icon-btn{
  width:40px;
  height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:var(--radius-btn);
  border:1px solid var(--line);
  color:var(--c-text-2);
  transition:all var(--dur) var(--ease);
}
.icon-btn:hover{background:var(--c-sand);color:var(--c-primary);}
.icon-btn svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:1.7;}
.menu-toggle{display:none;width:40px;height:40px;flex-direction:column;justify-content:center;align-items:center;gap:5px;border:1px solid var(--line);border-radius:var(--radius-btn);}
.menu-toggle span{display:block;width:16px;height:1.5px;background:var(--c-text);transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(3.25px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] span:nth-child(2){transform:translateY(-3.25px) rotate(-45deg);}

.search-bar{
  max-height:0;
  overflow:hidden;
  border-top:0 solid var(--line);
  transition:max-height 260ms var(--ease),border-color 260ms var(--ease);
  background:#F7F5F0;
}
.search-bar.is-open{max-height:110px;border-top:1px solid var(--line);}
.search-inner{
  display:flex;
  gap:12px;
  align-items:center;
  padding:16px 0;
}
.search-inner input{
  flex:1;
  height:48px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:#fff;
  font-size:15px;
}
.search-inner input:focus{outline:none;border-color:var(--c-accent);box-shadow:0 0 0 2px rgba(201,255,77,.55);}
.search-hint{font-size:13px;color:var(--c-text-3);white-space:nowrap;}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;
  top:0;
  right:0;
  bottom:0;
  width:86vw;
  max-width:420px;
  background:var(--c-ink);
  color:var(--c-on-dark);
  z-index:90;
  padding:28px 26px 34px;
  transform:translateX(102%);
  transition:transform 300ms var(--ease);
  display:flex;
  flex-direction:column;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer-head .brand{color:var(--c-on-dark);}
.drawer-close{width:38px;height:38px;border:1px solid var(--line-dark);border-radius:var(--radius-btn);color:var(--c-on-dark);font-size:18px;line-height:1;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  font-size:20px;
  font-weight:500;
  line-height:2.05;
  padding:6px 0;
  border-bottom:1px solid var(--line-dark);
  color:var(--c-on-dark-2);
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--c-accent);}
.drawer-cta{margin-top:auto;padding-top:26px;display:flex;flex-direction:column;gap:12px;}
.drawer-cta .btn{width:100%;}
.drawer-meta{font-size:13px;color:var(--c-on-dark-2);margin-top:14px;line-height:1.9;}
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(16,19,18,.5);
  opacity:0;
  visibility:hidden;
  transition:opacity 260ms var(--ease),visibility 260ms var(--ease);
  z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
body.is-locked{overflow:hidden;}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--c-text-3);
  padding:22px 0 0;
}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:var(--c-text-3);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .current{color:var(--c-primary);font-weight:600;}

/* ---------- category hero ---------- */
.cat-hero{padding:28px 0 56px;border-bottom:1px solid var(--line);}
.cat-hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
  gap:48px;
  align-items:end;
}
.cat-hero .kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.1em;
  color:var(--c-primary);
  margin-bottom:18px;
}
.cat-hero .kicker::before{content:"";width:26px;height:2px;background:var(--c-accent);display:block;}
.cat-hero h1{
  font-size:clamp(34px,5.2vw,64px);
  font-weight:800;
  line-height:1.12;
  letter-spacing:-.02em;
  color:var(--c-ink);
  max-width:14em;
}
.cat-hero h1 .h1-em{
  position:relative;
  display:inline-block;
}
.cat-hero h1 .h1-em::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:.06em;
  height:.16em;
  background:var(--c-accent);
  z-index:-1;
}
.cat-hero .lead{
  margin-top:22px;
  font-size:17px;
  line-height:1.85;
  color:var(--c-text-2);
  max-width:640px;
}
.cat-meta{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.cat-stat{
  background:var(--c-sand);
  border:1px solid var(--c-sand-deep);
  border-radius:var(--radius-card);
  padding:18px 20px;
}
.cat-stat .num{
  font-size:30px;
  font-weight:300;
  color:var(--c-primary);
  line-height:1.2;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
}
.cat-stat .label{
  font-size:12.5px;
  letter-spacing:.06em;
  color:var(--c-text-2);
  margin-top:6px;
}

/* ---------- layout: sidebar + entries ---------- */
.layout{
  display:grid;
  grid-template-columns:264px minmax(0,1fr);
  gap:56px;
  align-items:start;
  padding:64px 0 0;
}
.sidebar{position:sticky;top:104px;}
.side-toc{border-top:2px solid var(--c-primary);padding-top:18px;}
.side-title{
  font-size:13px;
  font-weight:600;
  letter-spacing:.1em;
  color:var(--c-text-3);
  margin-bottom:14px;
}
.side-toc a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  font-size:15px;
  font-weight:500;
  color:var(--c-text-2);
  padding:11px 0;
  border-bottom:1px solid var(--line);
}
.side-toc a::after{content:"→";font-size:13px;opacity:0;transform:translateX(-4px);transition:all var(--dur) var(--ease);}
.side-toc a:hover{color:var(--c-primary);padding-left:6px;}
.side-toc a:hover::after{opacity:1;transform:translateX(0);}
.side-toc a.is-current{color:var(--c-primary);font-weight:600;}
.side-card{
  margin-top:24px;
  background:var(--c-surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:20px;
  box-shadow:var(--shadow-1);
}
.side-card .side-card-title{
  font-size:15px;
  font-weight:600;
  margin-bottom:8px;
}
.side-card p{font-size:13.5px;color:var(--c-text-2);line-height:1.8;}
.side-card .btn{width:100%;margin-top:16px;}

.entries{min-width:0;}
.group{margin-bottom:56px;}
.group:last-child{margin-bottom:0;}
.group-head{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:16px;
  padding-bottom:14px;
  border-bottom:2px solid var(--c-primary);
  margin-bottom:4px;
}
.group-head h2{
  font-size:clamp(20px,2vw,26px);
  font-weight:700;
  letter-spacing:-.01em;
}
.group-head span{
  font-size:12.5px;
  color:var(--c-text-3);
  letter-spacing:.06em;
  font-variant-numeric:tabular-nums;
}
.entry{
  display:grid;
  grid-template-columns:64px minmax(0,1fr) 24px;
  gap:20px;
  align-items:start;
  padding:22px 14px 22px 10px;
  border-bottom:1px solid var(--line);
  transition:background-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.entry:hover{background:var(--c-sand);transform:translateX(6px);}
.entry-num{
  font-size:30px;
  font-weight:300;
  line-height:1.1;
  color:var(--c-text-3);
  opacity:.75;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.03em;
  padding-top:2px;
  transition:color var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.entry:hover .entry-num{color:var(--c-primary);opacity:1;}
.entry h3{
  font-size:18px;
  font-weight:600;
  line-height:1.4;
  margin-bottom:8px;
}
.entry:hover h3{color:var(--c-primary);}
.entry p{
  font-size:15px;
  line-height:1.85;
  color:var(--c-text-2);
  margin-bottom:12px;
  max-width:62em;
}
.entry-arrow{
  align-self:center;
  font-size:16px;
  color:var(--c-text-3);
  transition:transform var(--dur) var(--ease),color var(--dur) var(--ease);
}
.entry:hover .entry-arrow{transform:translateX(4px);color:var(--c-primary);}

/* ---------- image band ---------- */
.imgband{
  position:relative;
  min-height:300px;
  border-radius:var(--radius-card);
  overflow:hidden;
  display:flex;
  align-items:flex-end;
  background:#0E3B2E url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  margin:64px 0;
}
.imgband::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(16,19,18,.82) 0%,rgba(16,19,18,.5) 46%,rgba(16,19,18,.12) 100%);
}
.imgband-inner{position:relative;z-index:2;padding:36px 40px;max-width:640px;color:var(--c-on-dark);}
.imgband .band-kicker{
  font-size:12.5px;
  letter-spacing:.1em;
  color:var(--c-accent);
  font-weight:600;
  margin-bottom:12px;
}
.imgband h2{
  font-size:clamp(20px,2.4vw,30px);
  font-weight:700;
  line-height:1.3;
  letter-spacing:-.01em;
}
.imgband p{color:var(--c-on-dark-2);font-size:14.5px;margin-top:10px;line-height:1.8;}

/* ---------- feature cards ---------- */
.feature-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:28px;
}
.feature-card{
  background:var(--c-surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
  display:flex;
  flex-direction:column;
}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.feature-media{
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--c-sand);
}
.feature-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform 600ms var(--ease);
}
.feature-card:hover .feature-media img{transform:scale(1.04);}
.feature-body{padding:22px 24px 26px;}
.feature-body h3{font-size:19px;font-weight:600;line-height:1.4;margin-bottom:10px;}
.feature-body p{font-size:15px;color:var(--c-text-2);line-height:1.85;margin-bottom:16px;}
.feature-list{margin-bottom:18px;}
.feature-list li{
  position:relative;
  padding-left:18px;
  font-size:14.5px;
  color:var(--c-text-2);
  line-height:1.9;
}
.feature-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:.78em;
  width:6px;
  height:6px;
  border-radius:1px;
  background:var(--c-accent);
}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--c-ink);
  color:var(--c-on-dark);
  border-radius:var(--radius-card);
  padding:56px 48px;
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);
  gap:40px;
  align-items:center;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:1px;
  background:linear-gradient(90deg,var(--c-accent) 0 90px,rgba(255,255,255,.16) 90px 100%);
}
.cta-band h2{
  font-size:clamp(22px,2.6vw,32px);
  font-weight:700;
  line-height:1.3;
  letter-spacing:-.01em;
}
.cta-band p{color:var(--c-on-dark-2);font-size:15px;margin-top:12px;line-height:1.85;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}

/* ---------- related ---------- */
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.related-item{
  background:var(--c-surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:22px;
  display:flex;
  gap:16px;
  align-items:flex-start;
  box-shadow:var(--shadow-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.related-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.related-thumb{
  width:64px;
  height:64px;
  flex:0 0 64px;
  border-radius:var(--radius-card);
  overflow:hidden;
  background:var(--c-sand);
}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 600ms var(--ease);}
.related-item:hover .related-thumb img{transform:scale(1.04);}
.related-item h3{font-size:16px;font-weight:600;line-height:1.45;margin-bottom:6px;}
.related-item span{font-size:13px;color:var(--c-text-3);letter-spacing:.04em;}
.back-home{
  margin-top:36px;
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  align-items:center;
  border-top:1px solid var(--line);
  padding-top:28px;
}
.back-home .note{font-size:13.5px;color:var(--c-text-3);}

/* ---------- faq ---------- */
.faq{border-top:2px solid var(--c-primary);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:flex-start;
  gap:16px;
  text-align:left;
  padding:22px 4px;
  font-size:18px;
  font-weight:600;
  line-height:1.5;
  color:var(--c-text);
  transition:color var(--dur) var(--ease);
}
.faq-q:hover{color:var(--c-primary);}
.faq-q .fnum{
  font-size:13px;
  font-weight:600;
  color:var(--c-text-3);
  letter-spacing:.06em;
  padding-top:6px;
  font-variant-numeric:tabular-nums;
}
.faq-q .fico{
  margin-left:auto;
  flex:0 0 20px;
  width:20px;
  height:20px;
  position:relative;
  margin-top:6px;
  transition:transform 240ms var(--ease);
}
.faq-q .fico::before,
.faq-q .fico::after{
  content:"";
  position:absolute;
  background:var(--c-primary);
  border-radius:1px;
}
.faq-q .fico::before{left:0;right:0;top:9px;height:2px;}
.faq-q .fico::after{top:0;bottom:0;left:9px;width:2px;transition:opacity 240ms var(--ease),transform 240ms var(--ease);}
.faq-item.is-open .faq-q .fico{transform:rotate(180deg);}
.faq-item.is-open .faq-q .fico::after{opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 240ms var(--ease);
}
.faq-a-inner{
  padding:0 4px 24px 42px;
  font-size:15.5px;
  line-height:1.9;
  color:var(--c-text-2);
  max-width:70em;
}
.faq-item.is-open .faq-q{color:var(--c-primary);}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 420ms var(--ease),transform 420ms var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--c-ink);
  color:var(--c-on-dark);
  padding:72px 0 32px;
  margin-top:96px;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));
  gap:40px;
}
.footer-brand .brand{color:var(--c-on-dark);font-size:19px;}
.footer-brand p{
  margin-top:16px;
  font-size:14px;
  line-height:1.9;
  color:var(--c-on-dark-2);
  max-width:360px;
}
.footer-title{
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--c-on-dark-2);
  margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a,.footer-links span{font-size:14px;color:var(--c-on-dark-2);}
.footer-links a{position:relative;display:inline-block;width:fit-content;}
.footer-links a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:100%;
  height:1px;
  background:var(--c-accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.footer-links a:hover{color:var(--c-accent);}
.footer-links a:hover::after{transform:scaleX(1);}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid var(--line-dark);
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  font-size:13px;
  color:var(--c-on-dark-2);
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 32px;}
  .layout{grid-template-columns:minmax(0,1fr);gap:32px;padding-top:48px;}
  .sidebar{position:static;}
  .side-toc{
    border-top:0;
    border-bottom:1px solid var(--line);
    padding-top:0;
    padding-bottom:14px;
    display:flex;
    align-items:center;
    gap:10px;
    overflow-x:auto;
    scrollbar-width:none;
  }
  .side-toc::-webkit-scrollbar{display:none;}
  .side-title{display:none;}
  .side-toc a{
    flex:0 0 auto;
    border:1px solid var(--line);
    border-radius:var(--radius-btn);
    padding:8px 14px;
    background:var(--c-surface);
    font-size:14px;
  }
  .side-toc a::after{display:none;}
  .side-toc a:hover{padding-left:14px;}
  .side-card{display:none;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .menu-toggle{display:flex;}
  .header-inner{gap:16px;}
  .side-card{display:block;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .feature-grid{grid-template-columns:minmax(0,1fr);}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .cta-band{grid-template-columns:minmax(0,1fr);padding:40px 32px;}
  .cta-actions{justify-content:flex-start;}
  .cat-hero-grid{grid-template-columns:minmax(0,1fr);gap:32px;align-items:start;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:var(--space-section-sm) 0;}
  .header-inner{height:62px;}
  .cat-hero{padding:18px 0 40px;}
  .cat-hero h1{font-size:clamp(30px,8vw,40px);}
  .cat-meta{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;}
  .cat-stat{padding:14px 16px;}
  .cat-stat .num{font-size:24px;}
  .entry{grid-template-columns:40px minmax(0,1fr);gap:14px;padding:20px 8px 20px 6px;}
  .entry-arrow{display:none;}
  .entry-num{font-size:24px;}
  .entry h3{font-size:17px;}
  .entry p{font-size:14.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
  .imgband{min-height:240px;margin:44px 0;}
  .imgband-inner{padding:24px 20px;}
  .btn{width:100%;}
  .cta-actions{width:100%;}
  .faq-q{font-size:16px;gap:12px;}
  .faq-a-inner{padding:0 4px 20px 32px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .related-item{flex-direction:row;}
}
@media (max-width:479px){
  .container{padding:0 16px;}
  body{line-height:1.8;}
  .brand{font-size:17px;}
  .brand span:not(.brand-mark){font-size:14.5px;}
  .entry-num{opacity:.55;}
  .side-toc a{font-size:13px;padding:7px 12px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:120ms !important;}
  html{scroll-behavior:auto;}
  .reveal{transform:none;}
  .entry:hover{transform:none;}
  .feature-card:hover .feature-media img,
  .related-item:hover .related-thumb img{transform:none;}
}

/* roulang page: category2 */
:root{
  --c-primary:#0E3B2E;
  --c-primary-2:#15513F;
  --c-accent:#C9FF4D;
  --c-sand:#E8E2D6;
  --c-bg:#F5F3EE;
  --c-ink:#101312;
  --t-1:#1A1D1B;
  --t-2:#5C6259;
  --t-3:#8B9088;
  --t-inv:#F2F1EC;
  --t-inv-2:#B9BEB2;
  --line:#E2DFD6;
  --line-dark:rgba(255,255,255,.14);
  --r:4px;
  --r-btn:3px;
  --sh-1:0 1px 2px rgba(16,19,18,.06);
  --sh-2:0 8px 24px rgba(16,19,18,.10);
  --ease:cubic-bezier(.2,.7,.2,1);
  --container:1280px;
  --pad:32px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--t-1);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
input,select{font-family:inherit}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 var(--pad);
}

/* ---------- 通用元素 ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:500;
  letter-spacing:.06em;
  color:var(--t-2);
  text-transform:uppercase;
}
.eyebrow::before{
  content:"";
  width:14px;
  height:2px;
  background:var(--c-accent);
  display:inline-block;
}
.tag{
  display:inline-block;
  font-size:12px;
  font-weight:500;
  letter-spacing:.06em;
  color:var(--t-2);
  background:var(--c-sand);
  border-radius:2px;
  padding:3px 9px;
  line-height:1.6;
}
.tag--line{
  background:transparent;
  border:1px solid var(--line);
}
.meta{
  font-size:12.5px;
  color:var(--t-3);
  letter-spacing:.04em;
}
.num{
  font-variant-numeric:tabular-nums;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;transform:none}

.btn-primary{background:var(--c-accent);color:var(--c-primary)}
.btn-primary:hover{background:var(--c-primary);color:var(--c-accent);box-shadow:var(--sh-2)}

.btn-ghost{background:transparent;color:var(--t-1);border-color:var(--line)}
.btn-ghost:hover{background:var(--c-sand);border-color:var(--c-sand)}

.btn-dark{background:var(--c-ink);color:var(--t-inv)}
.btn-dark:hover{background:var(--c-primary);color:var(--c-accent)}

.btn-sm{height:38px;padding:0 18px;font-size:14px}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--c-primary);
  border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.link-arrow span{transition:transform .2s var(--ease)}
.link-arrow:hover{border-color:var(--c-accent)}
.link-arrow:hover span{transform:translateX(4px)}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(245,243,238,.86);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background-color .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled{
  background:var(--c-bg);
  border-bottom-color:var(--line);
  box-shadow:0 1px 0 rgba(16,19,18,.04);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:68px;
  transition:height .24s var(--ease);
}
.site-header.is-scrolled .header-inner{height:60px}

.brand{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:16px;
  line-height:1;
  white-space:nowrap;
  transition:opacity .2s var(--ease);
}
.brand:hover{opacity:.82}
.brand-mark{
  width:8px;
  height:8px;
  background:var(--c-accent);
  display:inline-block;
  flex:0 0 auto;
}
.brand strong{font-weight:800;letter-spacing:-.01em;font-size:16px}
.brand span:not(.brand-mark){font-weight:500;font-size:13.5px;color:var(--t-2);letter-spacing:.01em}

.nav-links{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:auto;
}
.nav-links a{
  position:relative;
  font-size:14.5px;
  font-weight:500;
  color:var(--t-1);
  padding:6px 0;
  transition:color .2s var(--ease);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:0;
  height:1px;
  background:var(--c-accent);
  transition:width .2s var(--ease);
}
.nav-links a:hover::after{width:100%}
.nav-links a:hover{color:var(--c-primary)}
.nav-links a.is-active{color:var(--c-primary);font-weight:600}
.nav-links a.is-active::after{width:100%;height:2px;background:var(--c-primary)}

.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.icon-btn{
  width:38px;
  height:38px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:transparent;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  color:var(--t-2);
  cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.icon-btn:hover{background:var(--c-sand);color:var(--c-primary);border-color:var(--c-sand)}
.icon-btn:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.icon-btn svg{width:17px;height:17px}

.burger{
  display:none;
  width:38px;
  height:38px;
  border:1px solid var(--line);
  background:transparent;
  border-radius:var(--r-btn);
  cursor:pointer;
  padding:0;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
}
.burger span{
  display:block;
  width:16px;
  height:1.5px;
  background:var(--t-1);
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.burger:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}

.search-bar{
  max-height:0;
  overflow:hidden;
  border-top:1px solid transparent;
  transition:max-height .28s var(--ease),border-color .28s var(--ease);
}
.search-bar.is-open{max-height:110px;border-top-color:var(--line)}
.search-inner{
  display:flex;
  gap:12px;
  padding:16px 0 20px;
}
.search-inner input{
  flex:1;
  height:48px;
  padding:0 16px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:#fff;
  font-size:15px;
  color:var(--t-1);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-inner input::placeholder{color:var(--t-3)}
.search-inner input:focus{outline:none;border-color:var(--c-accent);box-shadow:0 0 0 2px rgba(201,255,77,.5)}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(16,19,18,.45);
  opacity:0;
  visibility:hidden;
  transition:opacity .24s var(--ease),visibility .24s var(--ease);
  z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;
  top:0;
  right:0;
  bottom:0;
  width:86vw;
  max-width:360px;
  background:var(--c-bg);
  z-index:80;
  transform:translateX(100%);
  transition:transform .28s var(--ease);
  display:flex;
  flex-direction:column;
  padding:22px 22px 28px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{
  font-size:20px;
  font-weight:500;
  padding:14px 0;
  border-bottom:1px solid var(--line);
  color:var(--t-1);
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.drawer-nav a:hover{color:var(--c-primary);padding-left:6px}
.drawer-nav a.is-active{color:var(--c-primary);font-weight:700}
.drawer-foot{margin-top:auto;padding-top:26px;display:flex;flex-direction:column;gap:12px}
.drawer-foot .btn{width:100%}
.drawer-foot p{font-size:13px;color:var(--t-3)}

/* ---------- 面包屑 ---------- */
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--t-3);
  padding:22px 0 0;
}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:var(--t-3)}
.crumb a{color:var(--t-2);transition:color .2s var(--ease)}
.crumb a:hover{color:var(--c-primary)}
.crumb li[aria-current] strong{color:var(--c-primary);font-weight:600}

/* ---------- 栏目标题条 ---------- */
.cat-head{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:56px;
  align-items:center;
  padding:44px 0 64px;
}
.cat-head h1{
  font-size:clamp(34px,5.2vw,64px);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.12;
  margin:18px 0 20px;
  max-width:12em;
}
.cat-head .lede{
  font-size:17px;
  color:var(--t-2);
  max-width:34em;
  line-height:1.85;
}
.head-facts{
  display:flex;
  flex-wrap:wrap;
  gap:12px 28px;
  margin:26px 0 30px;
  padding:18px 0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.head-facts div{display:flex;align-items:baseline;gap:8px}
.head-facts strong{
  font-size:22px;
  font-weight:600;
  color:var(--c-primary);
  font-variant-numeric:tabular-nums;
  line-height:1;
}
.head-facts span{font-size:12.5px;color:var(--t-3);letter-spacing:.04em}
.head-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}

.cat-visual{
  position:relative;
  aspect-ratio:16/11;
  border-radius:var(--r);
  overflow:hidden;
  background:var(--c-sand);
  box-shadow:var(--sh-1);
}
.cat-visual img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.cat-visual:hover img{transform:scale(1.04)}
.cat-visual figcaption{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  padding:16px 18px;
  font-size:12.5px;
  color:var(--t-inv);
  background:linear-gradient(180deg,rgba(16,19,18,0),rgba(16,19,18,.72));
  letter-spacing:.04em;
}

/* ---------- 两栏主体 ---------- */
.cat-body{
  display:grid;
  grid-template-columns:250px minmax(0,1fr);
  gap:64px;
  padding:64px 0 24px;
  border-top:1px solid var(--line);
}
.cat-side{
  position:sticky;
  top:96px;
  align-self:start;
}
.side-title{
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--t-3);
  margin-bottom:14px;
}
.side-nav{display:flex;flex-direction:column}
.side-nav a{
  display:block;
  font-size:14px;
  color:var(--t-2);
  padding:11px 0;
  border-bottom:1px solid var(--line);
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.side-nav a:hover{color:var(--c-primary);padding-left:6px}
.side-nav a.is-current{color:var(--c-primary);font-weight:600}
.side-note{
  margin-top:22px;
  padding:18px;
  background:var(--c-ink);
  border-radius:var(--r);
  color:var(--t-inv-2);
  font-size:13px;
  line-height:1.8;
}
.side-note strong{display:block;color:var(--t-inv);font-size:14px;margin-bottom:6px;font-weight:600}
.side-note a{
  display:inline-block;
  margin-top:10px;
  color:var(--c-accent);
  font-weight:600;
  border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease);
}
.side-note a:hover{border-color:var(--c-accent)}

/* ---------- 条目长列表 ---------- */
.cat-list{min-width:0}
.list-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  padding-bottom:18px;
  border-bottom:2px solid var(--c-ink);
  margin-bottom:8px;
}
.list-head h2{
  font-size:clamp(22px,2.4vw,30px);
  font-weight:700;
  letter-spacing:-.01em;
  line-height:1.3;
}
.list-head p{font-size:13px;color:var(--t-3)}

.entry{
  display:grid;
  grid-template-columns:66px minmax(0,1fr);
  gap:24px;
  padding:30px 0;
  border-bottom:1px solid var(--line);
}
.entry-num{
  font-size:40px;
  font-weight:300;
  line-height:1;
  color:rgba(16,19,18,.22);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
  transition:color .2s var(--ease);
}
.entry:hover .entry-num{color:var(--c-primary)}
.entry h3{
  font-size:19px;
  font-weight:600;
  line-height:1.45;
  transition:color .2s var(--ease);
}
.entry:hover h3{color:var(--c-primary)}
.entry p{
  font-size:15px;
  color:var(--t-2);
  margin-top:10px;
  max-width:52em;
}
.entry-foot{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:14px;
}

/* ---------- 图片带 ---------- */
.band{
  position:relative;
  margin:56px 0;
  height:300px;
  border-radius:var(--r);
  overflow:hidden;
  background:var(--c-ink);
}
.band img{width:100%;height:100%;object-fit:cover;opacity:.72;transition:transform .6s var(--ease)}
.band:hover img{transform:scale(1.04)}
.band-cap{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  padding:32px 34px;
  background:linear-gradient(180deg,rgba(16,19,18,0),rgba(16,19,18,.78));
  color:var(--t-inv);
}
.band-cap h2{font-size:clamp(20px,2.2vw,27px);font-weight:700;line-height:1.35;letter-spacing:-.01em}
.band-cap p{font-size:13.5px;color:var(--t-inv-2);margin-top:8px}

/* ---------- 流程步骤 ---------- */
.section{padding:72px 0}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);
  font-weight:700;
  letter-spacing:-.01em;
  line-height:1.25;
  margin-top:14px;
}
.section-head p{font-size:14px;color:var(--t-2);max-width:30em}

.steps{border-top:1px solid var(--line)}
.step{
  display:grid;
  grid-template-columns:88px minmax(0,1fr) 160px;
  gap:28px;
  align-items:start;
  padding:28px 0;
  border-bottom:1px solid var(--line);
  transition:background-color .2s var(--ease),padding-left .2s var(--ease);
}
.step:hover{background:var(--c-sand);padding-left:14px}
.step-idx{
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--c-primary);
  padding-top:4px;
}
.step h3{font-size:18px;font-weight:600;line-height:1.45}
.step p{font-size:14.5px;color:var(--t-2);margin-top:8px}
.step .meta{padding-top:4px;text-align:right}

/* ---------- 适用场景 ---------- */
.scenes{
  background:var(--c-sand);
  border-radius:var(--r);
  padding:48px;
}
.scene-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
  margin-top:32px;
}
.scene{
  background:var(--c-bg);
  border-radius:var(--r);
  padding:26px 26px 28px;
  border:1px solid transparent;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.scene:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line)}
.scene-top{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.scene-mark{
  width:26px;height:26px;border-radius:3px;background:var(--c-primary);color:var(--c-accent);
  display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.scene h3{font-size:17.5px;font-weight:600}
.scene p{font-size:14.5px;color:var(--t-2);margin-top:8px}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  gap:18px;
  background:transparent;
  border:0;
  padding:24px 0;
  text-align:left;
  cursor:pointer;
  color:var(--t-1);
  font-size:18px;
  font-weight:600;
  line-height:1.5;
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--c-primary)}
.faq-q:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.faq-idx{font-size:13px;font-weight:600;color:var(--t-3);letter-spacing:.06em;font-variant-numeric:tabular-nums}
.faq-icon{
  margin-left:auto;
  flex:0 0 auto;
  width:26px;height:26px;
  border:1px solid var(--line);
  border-radius:3px;
  position:relative;
  transition:transform .24s var(--ease),background-color .24s var(--ease),border-color .24s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  background:var(--t-2);
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:11px;height:1.5px}
.faq-icon::after{width:1.5px;height:11px;transition:opacity .24s var(--ease)}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:var(--c-accent);border-color:var(--c-accent)}
.faq-item.is-open .faq-icon::before,.faq-item.is-open .faq-icon::after{background:var(--c-primary)}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .24s var(--ease);
}
.faq-a p{
  font-size:15px;
  color:var(--t-2);
  padding:0 0 26px;
  max-width:62em;
}

/* ---------- 相关推荐 ---------- */
.related{border-top:1px solid var(--line);margin-top:8px}
.related-row{
  display:grid;
  grid-template-columns:minmax(0,1fr) 150px 90px;
  gap:20px;
  align-items:center;
  padding:22px 0;
  border-bottom:1px solid var(--line);
  transition:padding-left .2s var(--ease),background-color .2s var(--ease);
}
.related-row:hover{background:var(--c-sand);padding-left:12px}
.related-row h3{font-size:16.5px;font-weight:600;transition:color .2s var(--ease)}
.related-row:hover h3{color:var(--c-primary)}
.related-row p{font-size:13.5px;color:var(--t-3);margin-top:4px}
.related-row .go{
  text-align:right;
  font-size:13px;
  color:var(--c-primary);
  font-weight:600;
  transition:transform .2s var(--ease);
}
.related-row:hover .go{transform:translateX(4px)}

/* ---------- CTA 深色段 ---------- */
.cta-band{
  background:var(--c-ink);
  color:var(--t-inv);
  border-radius:var(--r);
  padding:56px 48px;
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:32px;
  align-items:center;
  position:relative;
  overflow:hidden;
}
.cta-band h2{
  font-size:clamp(24px,2.8vw,36px);
  font-weight:700;
  letter-spacing:-.01em;
  line-height:1.25;
  margin-bottom:12px;
}
.cta-band p{color:var(--t-inv-2);font-size:15px;max-width:34em}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-band::after{
  content:"";
  position:absolute;
  left:48px;
  right:48px;
  bottom:22px;
  height:1px;
  background:repeating-linear-gradient(90deg,var(--line-dark) 0 14px,transparent 14px 24px);
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-ink);
  color:var(--t-inv);
  margin-top:96px;
  padding:72px 0 30px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand .brand{color:var(--t-inv);margin-bottom:16px}
.footer-brand .brand span:not(.brand-mark){color:var(--t-inv-2)}
.footer-brand p{
  font-size:13.5px;
  color:var(--t-inv-2);
  line-height:1.85;
  max-width:30em;
}
.footer-title{
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--t-inv);
  margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a,.footer-links span{
  font-size:13.5px;
  color:var(--t-inv-2);
  width:fit-content;
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.footer-links a:hover{color:var(--c-accent);border-color:var(--c-accent)}
.footer-bottom{
  margin-top:52px;
  padding-top:22px;
  border-top:1px solid var(--line-dark);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  font-size:12.5px;
  color:var(--t-inv-2);
  letter-spacing:.03em;
}

/* ---------- 滚动入场 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--pad:32px}
  .cat-body{gap:44px;grid-template-columns:220px minmax(0,1fr)}
  .step{grid-template-columns:76px minmax(0,1fr) 130px;gap:20px}
}

@media (max-width:1023px){
  .nav-links{display:none}
  .burger{display:flex}
  .header-actions .btn-sm{display:none}
  .site-header{background:var(--c-bg);border-bottom-color:var(--line)}
  .cat-head{grid-template-columns:1fr;gap:32px;padding:32px 0 48px}
  .cat-head h1{max-width:none}
  .cat-visual{aspect-ratio:16/9}
  .cat-body{grid-template-columns:1fr;gap:28px;padding:40px 0 12px}
  .cat-side{position:static;top:auto}
  .side-nav{
    flex-direction:row;
    overflow-x:auto;
    gap:10px;
    padding-bottom:8px;
    -webkit-overflow-scrolling:touch;
  }
  .side-nav a{
    flex:0 0 auto;
    border:1px solid var(--line);
    border-radius:2px;
    padding:8px 14px;
    font-size:13.5px;
    white-space:nowrap;
  }
  .side-nav a:hover{padding-left:14px}
  .side-note{display:none}
  .scenes{padding:34px}
  .scene-grid{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr;padding:44px 32px}
  .cta-band::after{left:32px;right:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}

@media (max-width:767px){
  :root{--pad:20px}
  .section{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .entry{grid-template-columns:1fr;gap:10px;padding:24px 0}
  .entry-num{font-size:28px}
  .entry p{font-size:14.5px}
  .band{height:230px;margin:40px 0}
  .band-cap{padding:22px 20px}
  .step{grid-template-columns:1fr;gap:8px;padding:22px 0}
  .step .meta{text-align:left}
  .related-row{grid-template-columns:1fr;gap:8px;padding:18px 0}
  .related-row .go{text-align:left}
  .btn{width:100%}
  .head-actions .btn,.cta-actions .btn,.drawer-foot .btn{width:100%}
  .head-actions{flex-direction:column;align-items:stretch}
  .faq-q{font-size:16px;gap:12px;padding:20px 0}
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding:52px 0 24px;margin-top:64px}
  .footer-bottom{flex-direction:column;gap:8px}
  .cta-band{padding:36px 22px}
  .cta-band::after{left:22px;right:22px;bottom:16px}
  .scenes{padding:26px 20px}
  .scene{padding:22px 20px}
}

@media (max-width:479px){
  body{line-height:1.8}
  .cat-head h1{font-size:clamp(30px,9vw,38px)}
  .entry-num,.head-facts strong{font-size:22px}
  .eyebrow::before{width:10px}
}

@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .reveal{transform:none}
  .cat-visual:hover img,.band:hover img{transform:none}
  .scene:hover{transform:none}
}

/* roulang page: category3 */
:root{
  --c-primary:#0E3B2E;
  --c-primary-2:#14503D;
  --c-accent:#C9FF4D;
  --c-sand:#E8E2D6;
  --c-bg:#F5F3EE;
  --c-ink:#101312;
  --t-1:#1A1D1B;
  --t-2:#5C6259;
  --t-3:#8B9088;
  --t-inv:#F2F1EC;
  --t-inv-2:#B9BEB2;
  --line:#E2DFD6;
  --line-dark:rgba(255,255,255,.14);
  --r-card:4px;
  --r-btn:3px;
  --sh-1:0 1px 2px rgba(16,19,18,.06);
  --sh-2:0 8px 24px rgba(16,19,18,.10);
  --container:1280px;
  --ease:cubic-bezier(.2,.7,.2,1);
  --err:#C0392B;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--t-1);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
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;}
input{font:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(245,243,238,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:height 240ms var(--ease),background 240ms var(--ease);
}
.header-inner{
  height:68px;display:flex;align-items:center;gap:28px;
  transition:height 240ms var(--ease);
}
.site-header.is-scrolled .header-inner{height:60px;}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.brand{display:inline-flex;align-items:center;gap:9px;font-size:19px;letter-spacing:-.01em;white-space:nowrap;}
.brand-mark{width:8px;height:8px;background:var(--c-accent);display:inline-block;flex:0 0 auto;}
.brand strong{font-weight:800;}
.brand span{font-weight:500;font-size:15px;color:var(--t-2);}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto;}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--t-1);
  padding:6px 0;transition:color 200ms var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;
  background:var(--c-accent);transition:width 200ms var(--ease);
}
.nav-links a:hover::after{width:100%;}
.nav-links a.is-active{color:var(--c-primary);font-weight:600;}
.nav-links a.is-active::after{width:100%;height:2px;background:var(--c-primary);}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:8px;}
.icon-btn{
  width:40px;height:40px;display:grid;place-items:center;
  border:1px solid var(--line);border-radius:var(--r-btn);
  transition:background 200ms var(--ease),border-color 200ms var(--ease);
}
.icon-btn:hover{background:var(--c-sand);border-color:var(--c-sand);}
.icon-btn svg{width:17px;height:17px;stroke:var(--c-primary);fill:none;stroke-width:1.8;stroke-linecap:round;}
.menu-toggle{display:none;}
.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:background 200ms var(--ease),color 200ms var(--ease),box-shadow 200ms var(--ease),transform 200ms var(--ease),border-color 200ms var(--ease);
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--c-accent);color:var(--c-primary);}
.btn-primary:hover{background:var(--c-primary);color:var(--c-accent);box-shadow:var(--sh-2);}
.btn-ghost{border:1px solid var(--line);background:transparent;color:var(--t-1);}
.btn-ghost:hover{background:var(--c-sand);border-color:var(--c-sand);}
.btn-outline-light{border:1px solid var(--line-dark);color:var(--t-inv);background:transparent;}
.btn-outline-light:hover{background:rgba(255,255,255,.10);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--c-primary);
}
.link-arrow .arw{transition:transform 200ms var(--ease);}
.link-arrow:hover .arw{transform:translateX(5px);}

.search-bar{
  display:none;border-top:1px solid var(--line);background:var(--c-bg);
}
.search-bar.is-open{display:block;}
.search-bar form{display:flex;gap:12px;padding:14px 0;}
.search-bar input{
  flex:1;height:48px;padding:0 16px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;color:var(--t-1);
}
.search-bar input:focus{outline:none;border-color:var(--c-accent);box-shadow:0 0 0 2px rgba(201,255,77,.55);}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0 0 0 auto;width:86vw;max-width:400px;z-index:90;
  background:var(--c-ink);color:var(--t-inv);
  transform:translateX(100%);transition:transform 280ms var(--ease);
  display:flex;flex-direction:column;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--line-dark);}
.drawer-head .brand{color:var(--t-inv);}
.drawer-head .brand span{color:var(--t-inv-2);}
.drawer-close{width:40px;height:40px;display:grid;place-items:center;border:1px solid var(--line-dark);border-radius:var(--r-btn);}
.drawer-close svg{width:16px;height:16px;stroke:var(--t-inv);fill:none;stroke-width:1.8;stroke-linecap:round;}
.drawer nav{padding:12px 24px;display:flex;flex-direction:column;}
.drawer nav a{
  font-size:20px;line-height:2;font-weight:500;color:var(--t-inv);
  border-bottom:1px solid var(--line-dark);
  transition:color 200ms var(--ease);
}
.drawer nav a:hover,.drawer nav a.is-active{color:var(--c-accent);}
.drawer-foot{margin-top:auto;padding:24px;border-top:1px solid var(--line-dark);}
.drawer-foot p{font-size:14px;color:var(--t-inv-2);margin-bottom:16px;}
.scrim{position:fixed;inset:0;background:rgba(16,19,18,.55);z-index:80;opacity:0;pointer-events:none;transition:opacity 240ms var(--ease);}
.scrim.is-open{opacity:1;pointer-events:auto;}
body.no-scroll{overflow:hidden;}

/* ---------- hero ---------- */
.page-hero{
  position:relative;background:var(--c-ink);color:var(--t-inv);overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(16,19,18,.94) 0%,rgba(16,19,18,.80) 48%,rgba(14,59,46,.72) 100%),
             url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  opacity:.98;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;
  padding-top:76px;padding-bottom:84px;
}
.breadcrumb{display:flex;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--t-inv-2);margin-bottom:22px;letter-spacing:.04em;}
.breadcrumb li{display:flex;align-items:center;gap:10px;}
.breadcrumb li::after{content:"/";color:rgba(255,255,255,.28);}
.breadcrumb li:last-child::after{display:none;}
.breadcrumb a{color:var(--t-inv-2);}
.breadcrumb a:hover{color:var(--c-accent);}
.breadcrumb .current{color:var(--t-inv);font-weight:600;}
.hero-tag{
  display:inline-block;font-size:12px;letter-spacing:.08em;font-weight:500;
  padding:6px 12px;border:1px solid var(--line-dark);border-radius:2px;color:var(--c-accent);
  margin-bottom:20px;
}
.page-hero h1{
  font-size:clamp(32px,4.6vw,54px);font-weight:800;line-height:1.14;letter-spacing:-.02em;
  max-width:14em;
}
.page-hero h1 em{font-style:normal;position:relative;display:inline-block;}
.page-hero h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:4px;height:8px;background:rgba(201,255,77,.32);z-index:-1;
}
.hero-lead{margin-top:22px;font-size:17px;line-height:1.9;color:var(--t-inv-2);max-width:36em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:32px;margin-top:38px;padding-top:24px;border-top:1px solid var(--line-dark);
}
.hero-meta div{min-width:96px;}
.hero-meta b{
  display:block;font-size:26px;font-weight:300;letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;color:var(--c-accent);line-height:1.3;
}
.hero-meta span{font-size:13px;color:var(--t-inv-2);letter-spacing:.05em;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);
  border:1px solid var(--line-dark);
}
.hero-badge{
  position:absolute;left:-18px;bottom:26px;background:var(--c-accent);color:var(--c-primary);
  padding:14px 18px;border-radius:var(--r-card);box-shadow:var(--sh-2);
}
.hero-badge b{display:block;font-size:22px;font-weight:800;font-variant-numeric:tabular-nums;line-height:1.2;}
.hero-badge span{font-size:12px;letter-spacing:.06em;font-weight:600;}

/* ---------- section base ---------- */
.section{padding:88px 0;}
.section-alt{background:#EFEDE6;}
.section-dark{background:var(--c-ink);color:var(--t-inv);}
.section-head{margin-bottom:44px;max-width:760px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-size:12px;font-weight:600;
  letter-spacing:.12em;color:var(--c-primary);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--c-primary);}
.section-title{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.28;letter-spacing:-.01em;}
.section-desc{margin-top:16px;color:var(--t-2);font-size:16px;}
.section-dark .section-title{color:var(--t-inv);}
.section-dark .section-desc{color:var(--t-inv-2);}
.section-dark .eyebrow{color:var(--c-accent);}
.section-dark .eyebrow::before{background:var(--c-accent);}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;flex-wrap:wrap;}

/* ---------- feature grid ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;}
.feature-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px 32px 30px;box-shadow:var(--sh-1);
  transition:box-shadow 240ms var(--ease),transform 240ms var(--ease),border-color 240ms var(--ease);
}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-sand);}
.feature-card .num{
  font-size:40px;font-weight:300;line-height:1;color:var(--c-primary);opacity:.35;
  font-variant-numeric:tabular-nums;letter-spacing:-.03em;
}
.feature-card h3{margin-top:14px;font-size:20px;font-weight:600;line-height:1.4;}
.feature-card p{margin-top:12px;color:var(--t-2);font-size:15px;line-height:1.85;}
.feature-card .mini{margin-top:18px;display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-block;font-size:12px;font-weight:500;letter-spacing:.06em;
  padding:5px 10px;border-radius:2px;background:var(--c-sand);color:var(--t-2);
}
.tag-line{background:transparent;border:1px solid var(--line);color:var(--t-2);}

/* ---------- two column layout ---------- */
.layout-two{display:grid;grid-template-columns:280px 1fr;gap:56px;align-items:start;}
.side-toc{position:sticky;top:96px;}
.toc-title{font-size:13px;font-weight:600;letter-spacing:.1em;color:var(--t-3);margin-bottom:16px;}
.toc-list{border-top:1px solid var(--line);}
.toc-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:14px 4px;border-bottom:1px solid var(--line);
  font-size:14px;color:var(--t-2);transition:color 200ms var(--ease),padding 200ms var(--ease),background 200ms var(--ease);
}
.toc-list a:hover{color:var(--c-primary);padding-left:10px;background:rgba(232,226,214,.4);}
.toc-list a.is-current{color:var(--c-primary);font-weight:600;}
.toc-list a .dot{width:6px;height:6px;background:var(--c-sand);border-radius:50%;flex:0 0 auto;}
.toc-list a.is-current .dot{background:var(--c-accent);}
.toc-note{margin-top:22px;padding:18px;background:var(--c-sand);border-radius:var(--r-card);font-size:13px;color:var(--t-2);line-height:1.8;}

/* ---------- entry list ---------- */
.entry-list{border-top:1px solid var(--line);}
.entry{
  display:grid;grid-template-columns:64px 1fr;gap:24px;
  padding:30px 0;border-bottom:1px solid var(--line);
  transition:background 220ms var(--ease);
}
.entry:hover{background:rgba(255,255,255,.6);}
.entry .idx{
  font-size:34px;font-weight:300;opacity:.35;font-variant-numeric:tabular-nums;
  color:var(--c-primary);line-height:1;letter-spacing:-.03em;padding-top:4px;
}
.entry h3{font-size:19px;font-weight:600;line-height:1.45;}
.entry p{margin-top:10px;color:var(--t-2);font-size:15px;line-height:1.85;}
.entry ul{margin-top:14px;display:grid;gap:6px;}
.entry ul li{position:relative;padding-left:16px;font-size:14px;color:var(--t-2);}
.entry ul li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:1px;background:var(--c-primary);}
.entry .meta{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px;align-items:center;}

/* ---------- image band ---------- */
.image-band{position:relative;border-radius:var(--r-card);overflow:hidden;min-height:280px;display:grid;align-items:end;}
.image-band img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.image-band::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(16,19,18,.20),rgba(16,19,18,.86));}
.image-band .band-inner{position:relative;z-index:2;padding:38px 40px;color:var(--t-inv);}
.image-band h2{font-size:clamp(20px,2vw,26px);font-weight:700;line-height:1.35;}
.image-band p{margin-top:10px;color:var(--t-inv-2);font-size:15px;max-width:52em;}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);}
.step{padding:28px 26px 30px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);}
.step:first-child{padding-left:0;}
.step:last-child{border-right:0;}
.step .s-num{
  font-size:13px;font-weight:600;letter-spacing:.1em;color:var(--c-primary);
}
.step h3{margin-top:16px;font-size:18px;font-weight:600;line-height:1.45;}
.step p{margin-top:10px;color:var(--t-2);font-size:14.5px;line-height:1.85;}

/* ---------- scenes ---------- */
.scene-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;}
.scene-grid img{border-radius:var(--r-card);aspect-ratio:5/4;object-fit:cover;width:100%;}
.scene-list{display:grid;gap:0;border-top:1px solid var(--line);margin-top:26px;}
.scene-list li{
  display:grid;grid-template-columns:26px 1fr;gap:14px;
  padding:18px 0;border-bottom:1px solid var(--line);
}
.scene-list .ck{
  width:22px;height:22px;border-radius:2px;background:var(--c-primary);display:grid;place-items:center;margin-top:4px;
}
.scene-list .ck svg{width:12px;height:12px;stroke:var(--c-accent);fill:none;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round;}
.scene-list b{font-size:16px;font-weight:600;display:block;}
.scene-list span{font-size:14.5px;color:var(--t-2);}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line);max-width:900px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:grid;grid-template-columns:48px 1fr 24px;gap:16px;align-items:center;
  text-align:left;padding:22px 0;font-size:18px;font-weight:600;line-height:1.5;
  transition:color 200ms var(--ease);
}
.faq-q:hover{color:var(--c-primary);}
.faq-q .q-idx{font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--t-3);font-variant-numeric:tabular-nums;}
.faq-q .sign{position:relative;width:16px;height:16px;justify-self:end;transition:transform 240ms var(--ease);}
.faq-q .sign::before,.faq-q .sign::after{content:"";position:absolute;background:var(--c-primary);}
.faq-q .sign::before{left:0;top:7px;width:16px;height:2px;}
.faq-q .sign::after{left:7px;top:0;width:2px;height:16px;transition:opacity 240ms var(--ease);}
.faq-item.is-open .faq-q .sign{transform:rotate(180deg);}
.faq-item.is-open .faq-q .sign::after{opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms var(--ease);}
.faq-a p{padding:0 0 24px 64px;color:var(--t-2);font-size:15.5px;line-height:1.9;max-width:62em;}

/* ---------- related ---------- */
.related-list{border-top:1px solid var(--line);}
.related-list a{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:22px 4px;border-bottom:1px solid var(--line);
  transition:padding 200ms var(--ease),background 200ms var(--ease);
}
.related-list a:hover{padding-left:14px;background:rgba(232,226,214,.45);}
.related-list .rt{font-size:17px;font-weight:600;}
.related-list .rd{font-size:14px;color:var(--t-2);margin-top:4px;}
.related-list .rr{font-size:13px;color:var(--t-3);white-space:nowrap;}

/* ---------- cta band ---------- */
.cta-band{background:var(--c-ink);color:var(--t-inv);padding:72px 0 0;}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;padding-bottom:64px;
}
.cta-inner h2{font-size:clamp(22px,2.4vw,32px);font-weight:700;line-height:1.32;max-width:20em;}
.cta-inner p{margin-top:12px;color:var(--t-inv-2);font-size:15px;max-width:38em;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.tick-line{
  height:1px;background:var(--line-dark);position:relative;
}
.tick-line::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.35) 0 1px,transparent 1px 26px);
  opacity:.6;
}

/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);color:var(--t-inv-2);padding:64px 0 28px;border-top:1px solid var(--line-dark);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand{color:var(--t-inv);font-size:18px;}
.footer-brand .brand span{color:var(--t-inv-2);}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.9;max-width:30em;}
.footer-title{font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--t-inv);margin-bottom:18px;}
.footer-links{display:flex;flex-direction:column;gap:11px;font-size:14px;}
.footer-links a{color:var(--t-inv-2);transition:color 200ms var(--ease);position:relative;}
.footer-links a:hover{color:var(--c-accent);}
.footer-links span{color:var(--t-inv-2);opacity:.8;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line-dark);
  display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;font-size:13px;color:var(--t-inv-2);
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 420ms var(--ease),transform 420ms var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 28px;}
  .layout-two{grid-template-columns:230px 1fr;gap:40px;}
  .hero-inner{gap:40px;}
}
@media (max-width:1023px){
  .nav-links,.nav-actions .btn{display:none;}
  .menu-toggle{display:grid;}
  .header-inner{gap:16px;}
  .brand{margin-right:auto;}
  .hero-inner{grid-template-columns:1fr;padding-top:56px;padding-bottom:64px;}
  .hero-visual img{aspect-ratio:16/9;}
  .hero-badge{left:auto;right:20px;bottom:-16px;}
  .section{padding:64px 0;}
  .layout-two{grid-template-columns:1fr;}
  .side-toc{position:static;}
  .toc-list{display:flex;flex-wrap:wrap;gap:10px;border-top:0;}
  .toc-list a{border:1px solid var(--line);border-radius:2px;padding:9px 14px;background:#fff;}
  .toc-list a .dot{display:none;}
  .toc-note{display:none;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .step:nth-child(2){border-right:0;}
  .step:nth-child(3){padding-left:0;}
  .scene-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .page-hero h1{font-size:clamp(28px,7.4vw,38px);}
  .hero-lead{font-size:16px;}
  .hero-meta{gap:22px;}
  .hero-meta b{font-size:22px;}
  .feature-grid{grid-template-columns:1fr;}
  .btn{width:100%;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .feature-card{padding:24px 22px;}
  .entry{grid-template-columns:1fr;gap:10px;padding:24px 0;}
  .entry .idx{font-size:26px;}
  .steps{grid-template-columns:1fr;}
  .step{border-right:0;padding:22px 0;}
  .image-band .band-inner{padding:26px 22px;}
  .faq-q{grid-template-columns:32px 1fr 20px;font-size:16px;gap:10px;}
  .faq-a p{padding-left:42px;font-size:15px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .cta-inner{padding-bottom:48px;}
}
@media (max-width:479px){
  .brand{font-size:17px;}
  .brand span{font-size:14px;}
  .feature-card .num,.entry .idx{display:none;}
  .entry{padding:22px 0;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.01ms !important;}
  .reveal{transform:none;opacity:1;}
  html{scroll-behavior:auto;}
}

/* roulang page: category4 */
/* ===== 设计变量 ===== */
:root{
  --c-primary:#0E3B2E;
  --c-primary-soft:#15503E;
  --c-primary-dim:rgba(14,59,46,.08);
  --c-accent:#C9FF4D;
  --c-accent-ink:#16260F;
  --c-sand:#E8E2D6;
  --c-bg:#F5F3EE;
  --c-ink:#101312;
  --c-text:#1A1D1B;
  --c-text-2:#5C6259;
  --c-text-3:#8B9088;
  --c-line:#E2DFD6;
  --c-line-dark:rgba(255,255,255,.14);
  --c-on-dark:#F2F1EC;
  --c-on-dark-2:#B9BEB2;
  --c-error:#C0392B;
  --r-card:4px;
  --r-btn:3px;
  --sh-1:0 1px 2px rgba(16,19,18,.06);
  --sh-2:0 8px 24px rgba(16,19,18,.10);
  --container:1280px;
  --header-h:68px;
  --ease:cubic-bezier(.2,.7,.2,1);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
}

/* ===== Reset / Base ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;height:auto;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
::selection{background:var(--c-accent);color:var(--c-accent-ink);}
.tnum{font-variant-numeric:tabular-nums;}

/* ===== 容器 ===== */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}

/* ===== Header / Nav ===== */
.site-header{
  position:fixed;
  inset:0 0 auto 0;
  z-index:80;
  height:var(--header-h);
  background:transparent;
  transition:height .24s var(--ease),background-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled{
  height:60px;
  background:rgba(245,243,238,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
  box-shadow:var(--sh-1);
}
.header-inner{
  height:100%;
  display:flex;
  align-items:center;
  gap:28px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:17px;
  letter-spacing:.01em;
  white-space:nowrap;
  color:var(--c-primary);
}
.brand-mark{
  width:8px;height:8px;
  background:var(--c-accent);
  display:inline-block;
  flex:0 0 auto;
}
.brand strong{font-weight:800;}
.brand span:not(.brand-mark){font-weight:500;font-size:14px;color:var(--c-text-2);}

.nav-links{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:auto;
}
.nav-links a{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--c-text);
  padding:6px 0;
  transition:color .2s var(--ease);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  height:1px;width:0;
  background:var(--c-accent);
  transition:width .2s var(--ease);
}
.nav-links a:hover{color:var(--c-primary);}
.nav-links a:hover::after{width:100%;}
.nav-links a.is-active{color:var(--c-primary);font-weight:600;}
.nav-links a.is-active::after{width:100%;height:2px;background:var(--c-primary);}

.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:28px;
}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  color:var(--c-text-2);
  background:rgba(255,255,255,.6);
  transition:all .2s var(--ease);
}
.icon-btn:hover{border-color:var(--c-primary);color:var(--c-primary);background:#fff;}
.icon-btn svg{width:18px;height:18px;}

.nav-toggle{display:none;flex-direction:column;gap:5px;align-items:center;justify-content:center;}
.nav-toggle span{
  display:block;width:20px;height:2px;background:var(--c-text);
  transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* 搜索面板 */
.search-panel{
  position:absolute;
  left:0;right:0;top:100%;
  background:var(--c-bg);
  border-bottom:1px solid var(--c-line);
  box-shadow:var(--sh-2);
  padding:16px 0;
  display:none;
}
.search-panel.is-open{display:block;}
.search-form{display:flex;gap:10px;}
.search-form input{
  flex:1;
  height:48px;
  padding:0 16px;
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  background:#fff;
  color:var(--c-text);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-form input:focus{
  outline:none;
  border-color:var(--c-primary);
  box-shadow:0 0 0 2px rgba(201,255,77,.9);
}
.search-form input::placeholder{color:var(--c-text-3);}

/* ===== 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;
  letter-spacing:.01em;
  border:1px solid transparent;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease);
}
.btn-primary{background:var(--c-accent);color:var(--c-accent-ink);}
.btn-primary:hover{background:var(--c-primary);color:var(--c-accent);box-shadow:var(--sh-2);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{border-color:var(--c-line);background:transparent;color:var(--c-text);}
.btn-outline:hover{background:var(--c-sand);border-color:var(--c-sand);}
.btn-ghost{
  padding:0;
  height:auto;
  color:var(--c-primary);
  font-weight:600;
}
.btn-ghost:hover{color:var(--c-primary-soft);}
.btn-ghost .arrow{transition:transform .2s var(--ease);display:inline-block;}
.btn-ghost:hover .arrow{transform:translateX(4px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;pointer-events:none;transform:none;}

/* ===== 标签 ===== */
.tag{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 10px;
  font-size:12px;
  font-weight:500;
  letter-spacing:.06em;
  color:var(--c-text-2);
  background:var(--c-sand);
  border-radius:2px;
}
.tag-outline{background:transparent;border:1px solid var(--c-line);}
.tag-dark{background:rgba(255,255,255,.12);color:var(--c-on-dark);}

.eyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:500;
  letter-spacing:.14em;
  color:var(--c-text-3);
  margin-bottom:10px;
}

/* ===== 面包屑 ===== */
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);}
.breadcrumb li+li::before{content:"/";margin-right:8px;color:var(--c-line);}
.breadcrumb a{color:var(--c-text-2);transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb [aria-current="page"]{color:var(--c-primary);font-weight:600;}

/* ===== Hero ===== */
.hero{
  padding:calc(var(--header-h) + 56px) 0 72px;
  position:relative;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:38%;
  background:linear-gradient(180deg,rgba(232,226,214,.55),rgba(245,243,238,0));
  pointer-events:none;
}
.hero-inner{
  position:relative;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0;
  align-items:center;
}
.hero-copy{padding-right:48px;}
.hero-copy .breadcrumb{margin-bottom:22px;}
.hero h1{
  font-size:clamp(34px,4.6vw,58px);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.12;
  color:var(--c-text);
  margin:14px 0 0;
  max-width:16em;
}
.hero h1 .hl{color:var(--c-primary);}
.hero-sub{
  margin-top:20px;
  font-size:17px;
  line-height:1.85;
  color:var(--c-text-2);
  max-width:34em;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:18px;
  margin-top:32px;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:36px;
  margin-top:38px;
  padding-top:24px;
  border-top:1px solid var(--c-line);
}
.hero-meta li{display:flex;flex-direction:column;gap:2px;}
.hero-meta strong{
  font-size:20px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  color:var(--c-primary);
}
.hero-meta span{font-size:13px;color:var(--c-text-3);letter-spacing:.04em;}

.hero-visual{
  position:relative;
  border-left:1px solid var(--c-line);
  padding-left:48px;
}
.hero-visual img{
  width:100%;
  height:520px;
  object-fit:cover;
  border-radius:var(--r-card);
  background:var(--c-sand);
}
.hero-visual::after{
  content:"";
  position:absolute;
  inset:0 0 0 48px;
  background:linear-gradient(180deg,rgba(16,19,18,.05),rgba(16,19,18,.28));
  border-radius:var(--r-card);
  pointer-events:none;
}
.hero-badge{
  position:absolute;
  left:24px;
  bottom:24px;
  z-index:2;
  background:rgba(16,19,18,.86);
  color:var(--c-on-dark);
  border-radius:var(--r-card);
  padding:14px 18px;
  display:flex;
  align-items:center;
  gap:12px;
  border:1px solid var(--c-line-dark);
}
.hero-badge .num{
  font-size:28px;
  font-weight:300;
  line-height:1;
  font-variant-numeric:tabular-nums;
  color:var(--c-accent);
}
.hero-badge .txt{font-size:13px;letter-spacing:.06em;color:var(--c-on-dark-2);}

/* ===== 通用板块 ===== */
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.section-dark{background:var(--c-ink);color:var(--c-on-dark);}
.section-alt{background:#EFECE4;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  padding-bottom:24px;
  border-bottom:1px solid var(--c-line);
  margin-bottom:40px;
}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);
  font-weight:700;
  line-height:1.25;
  letter-spacing:-.01em;
  color:var(--c-text);
}
.section-dark .section-head{border-bottom-color:var(--c-line-dark);}
.section-dark .section-head h2{color:var(--c-on-dark);}
.section-dark .eyebrow{color:var(--c-on-dark-2);}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--c-primary);
  white-space:nowrap;
}
.section-dark .link-arrow{color:var(--c-accent);}
.link-arrow span{transition:transform .2s var(--ease);}
.link-arrow:hover span{transform:translateX(4px);}

/* ===== 数据条 ===== */
.stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
}
.stat{
  padding:32px 28px;
  border-right:1px solid var(--c-line);
}
.stat:last-child{border-right:0;}
.stat .num{
  display:block;
  font-size:40px;
  font-weight:300;
  line-height:1.1;
  letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
  color:var(--c-primary);
}
.stat .num small{font-size:15px;font-weight:600;margin-left:4px;}
.stat .label{
  display:block;
  margin-top:8px;
  font-size:15px;
  font-weight:600;
  color:var(--c-text);
}
.stat .desc{
  display:block;
  margin-top:6px;
  font-size:13px;
  color:var(--c-text-3);
  line-height:1.7;
}

/* ===== 卡片网格 ===== */
.grid-2{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.grid-3{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.card{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  display:flex;
  flex-direction:column;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D6D2C6;}
.card-media{
  position:relative;
  aspect-ratio:16/9;
  background:var(--c-sand);
  overflow:hidden;
}
.card-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .6s var(--ease);
}
.card:hover .card-media img{transform:scale(1.04);}
.card-media .tag{
  position:absolute;
  left:12px;top:12px;
  background:rgba(16,19,18,.82);
  color:var(--c-on-dark);
}
.card-body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{
  font-size:19px;
  font-weight:600;
  line-height:1.4;
  color:var(--c-text);
  transition:color .2s var(--ease);
}
.card:hover .card-body h3{color:var(--c-primary);}
.card-body p{
  font-size:14.5px;
  line-height:1.8;
  color:var(--c-text-2);
}
.card-foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--c-line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:12.5px;
  letter-spacing:.04em;
  color:var(--c-text-3);
}
.card-foot .more{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;}
.card-foot .more span{transition:transform .2s var(--ease);}
.card:hover .card-foot .more span{transform:translateX(4px);}

/* ===== 横向滚动内容组 ===== */
.scroller{
  display:flex;
  gap:20px;
  overflow-x:auto;
  padding:4px 4px 20px;
  scroll-snap-type:x mandatory;
  scrollbar-width:thin;
}
.scroller::-webkit-scrollbar{height:6px;}
.scroller::-webkit-scrollbar-thumb{background:var(--c-line);border-radius:3px;}
.scroller::-webkit-scrollbar-track{background:transparent;}
.scroller .card{
  flex:0 0 300px;
  scroll-snap-align:start;
}
.scroller .card-media .time-badge{
  position:absolute;
  right:12px;bottom:12px;
  background:rgba(245,243,238,.94);
  color:var(--c-primary);
  font-size:12px;
  font-weight:600;
  letter-spacing:.04em;
  padding:4px 8px;
  border-radius:2px;
}

/* ===== 列表行 ===== */
.row-list{border-top:1px solid var(--c-line);}
.row{
  display:grid;
  grid-template-columns:64px 1fr auto;
  gap:24px;
  align-items:start;
  padding:22px 0;
  border-bottom:1px solid var(--c-line);
  transition:background-color .2s var(--ease),padding-left .2s var(--ease);
}
.row:hover{background:#EFECE4;padding-left:12px;}
.row .no{
  font-size:26px;
  font-weight:300;
  line-height:1.2;
  font-variant-numeric:tabular-nums;
  color:var(--c-primary);
  opacity:.55;
}
.row h3{font-size:18px;font-weight:600;line-height:1.45;color:var(--c-text);}
.row:hover h3{color:var(--c-primary);}
.row p{margin-top:6px;font-size:14px;line-height:1.8;color:var(--c-text-2);max-width:76ch;}
.row .meta{
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  gap:8px;
  font-size:12.5px;
  color:var(--c-text-3);
  letter-spacing:.04em;
  white-space:nowrap;
}

/* ===== 图片带 ===== */
.image-band{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  min-height:300px;
  display:flex;
  align-items:flex-end;
  background-color:var(--c-ink);
  background-size:cover;
  background-position:center;
}
.image-band::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(16,19,18,.12),rgba(16,19,18,.78));
}
.image-band-inner{
  position:relative;
  z-index:2;
  padding:40px;
  color:var(--c-on-dark);
  max-width:720px;
}
.image-band-inner h2{
  font-size:clamp(22px,2.4vw,30px);
  font-weight:700;
  line-height:1.3;
}
.image-band-inner p{
  margin-top:12px;
  font-size:15px;
  line-height:1.85;
  color:var(--c-on-dark-2);
}

/* ===== 流程 ===== */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  border-top:1px solid var(--c-line);
}
.step{
  padding:32px 26px 28px 0;
  border-right:1px solid var(--c-line);
  position:relative;
}
.step:last-child{border-right:0;}
.step .step-no{
  display:block;
  font-size:13px;
  font-weight:600;
  letter-spacing:.14em;
  color:var(--c-text-3);
  margin-bottom:16px;
}
.step h3{font-size:18px;font-weight:600;line-height:1.4;color:var(--c-text);}
.step p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--c-text-2);}
.step::before{
  content:"";
  position:absolute;
  top:-1px;left:0;
  width:36px;height:2px;
  background:var(--c-accent);
}

/* ===== FAQ ===== */
.faq-list{border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  gap:18px;
  padding:22px 0;
  text-align:left;
  font-size:18px;
  font-weight:600;
  color:var(--c-text);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--c-primary);}
.faq-q .q-no{
  flex:0 0 auto;
  font-size:14px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--c-text-3);
  font-variant-numeric:tabular-nums;
}
.faq-q .q-text{flex:1;}
.faq-q .q-icon{
  flex:0 0 auto;
  width:22px;height:22px;
  position:relative;
  transition:transform .24s var(--ease);
}
.faq-q .q-icon::before,
.faq-q .q-icon::after{
  content:"";
  position:absolute;
  background:var(--c-primary);
  border-radius:1px;
}
.faq-q .q-icon::before{left:0;top:10px;width:22px;height:2px;}
.faq-q .q-icon::after{left:10px;top:0;width:2px;height:22px;transition:opacity .24s var(--ease);}
.faq-item.is-open .faq-q .q-icon{transform:rotate(180deg);}
.faq-item.is-open .faq-q .q-icon::after{opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .24s var(--ease);
}
.faq-a-inner{
  padding:0 40px 26px 44px;
  font-size:15px;
  line-height:1.9;
  color:var(--c-text-2);
  max-width:80ch;
}
.faq-item.is-open .faq-a{max-height:420px;}

/* ===== CTA ===== */
.cta-band{
  background:var(--c-ink);
  color:var(--c-on-dark);
  padding:72px 0;
  position:relative;
  overflow:hidden;
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
}
.cta-inner h2{
  font-size:clamp(24px,2.6vw,34px);
  font-weight:700;
  line-height:1.3;
  max-width:20em;
}
.cta-inner p{
  margin-top:14px;
  font-size:15px;
  color:var(--c-on-dark-2);
  max-width:42em;
}
.cta-actions{display:flex;gap:14px;flex:0 0 auto;}
.cta-actions .btn-outline{border-color:var(--c-line-dark);color:var(--c-on-dark);}
.cta-actions .btn-outline:hover{background:var(--c-sand);color:var(--c-ink);border-color:var(--c-sand);}
.cta-scale{
  margin-top:40px;
  height:1px;
  background:repeating-linear-gradient(90deg,var(--c-line-dark) 0 12px,transparent 12px 24px);
}

/* ===== 页脚 ===== */
.site-footer{
  background:var(--c-ink);
  color:var(--c-on-dark-2);
  padding:72px 0 32px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
  border-bottom:1px solid var(--c-line-dark);
}
.footer-brand .brand{color:var(--c-on-dark);font-size:17px;}
.footer-brand .brand span:not(.brand-mark){color:var(--c-on-dark-2);font-size:14px;}
.footer-brand p{
  margin-top:18px;
  font-size:14px;
  line-height:1.85;
  max-width:34em;
}
.footer-title{
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--c-on-dark);
  margin-bottom:18px;
}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a,.footer-links span{
  font-size:14px;
  color:var(--c-on-dark-2);
  transition:color .2s var(--ease);
  position:relative;
  width:fit-content;
}
.footer-links a::after{
  content:"";
  position:absolute;left:0;bottom:-2px;
  width:0;height:1px;background:var(--c-accent);
  transition:width .2s var(--ease);
}
.footer-links a:hover{color:var(--c-on-dark);}
.footer-links a:hover::after{width:100%;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding-top:26px;
  font-size:13px;
  color:var(--c-text-3);
}

/* ===== 移动端抽屉 ===== */
.drawer{
  position:fixed;
  top:0;right:0;bottom:0;
  width:86vw;
  max-width:380px;
  background:var(--c-bg);
  z-index:120;
  transform:translateX(100%);
  transition:transform .32s var(--ease);
  display:flex;
  flex-direction:column;
  padding:24px 26px 32px;
  overflow-y:auto;
  box-shadow:-12px 0 40px rgba(16,19,18,.18);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:20px;
  border-bottom:1px solid var(--c-line);
}
.drawer-nav{display:flex;flex-direction:column;padding:12px 0;flex:1;}
.drawer-nav a{
  font-size:20px;
  line-height:2;
  font-weight:600;
  color:var(--c-text);
  border-bottom:1px solid var(--c-line);
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--c-primary);padding-left:8px;}
.drawer-foot{display:flex;flex-direction:column;gap:14px;padding-top:22px;}
.drawer-foot .btn{width:100%;}
.drawer-contact{font-size:13px;color:var(--c-text-3);line-height:1.9;}
.overlay{
  position:fixed;
  inset:0;
  background:rgba(16,19,18,.45);
  opacity:0;
  visibility:hidden;
  z-index:110;
  transition:opacity .3s var(--ease),visibility .3s var(--ease);
}
.overlay.is-open{opacity:1;visibility:visible;}
body.no-scroll{overflow:hidden;}

/* ===== 入场动效 ===== */
.reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .42s var(--ease),transform .42s var(--ease);
}
.reveal.is-in{opacity:1;transform:translateY(0);}
.reveal-d1{transition-delay:.06s;}
.reveal-d2{transition-delay:.12s;}
.reveal-d3{transition-delay:.18s;}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .container{padding:0 32px;}
  .hero-visual img{height:460px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .site-header{
    background:rgba(245,243,238,.96);
    border-bottom:1px solid var(--c-line);
    height:60px;
  }
  .header-actions{margin-left:auto;}
  .hero{padding:calc(60px + 40px) 0 56px;}
  .hero-inner{grid-template-columns:1fr;gap:36px;}
  .hero-copy{padding-right:0;}
  .hero-visual{border-left:0;padding-left:0;border-top:1px solid var(--c-line);padding-top:32px;}
  .hero-visual::after{inset:32px 0 0 0;}
  .hero-visual img{height:320px;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .stat:nth-child(2){border-right:0;}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--c-line);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .step:nth-child(2){border-right:0;}
  .step:nth-child(1),.step:nth-child(2){border-bottom:1px solid var(--c-line);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .grid-2,.grid-3{grid-template-columns:1fr;}
  .row{grid-template-columns:1fr;gap:10px;}
  .row .meta{flex-direction:row;align-items:center;gap:14px;}
  .hero h1{font-size:clamp(30px,7.6vw,40px);}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .hero-actions .btn-ghost{width:auto;}
  .hero-meta{gap:24px;}
  .stats{grid-template-columns:1fr;}
  .stat{border-right:0;border-bottom:1px solid var(--c-line);padding:22px 0;}
  .stat:last-child{border-bottom:0;}
  .steps{grid-template-columns:1fr;}
  .step{border-right:0;border-bottom:1px solid var(--c-line);padding:24px 0;}
  .step:last-child{border-bottom:0;}
  .image-band{min-height:260px;}
  .image-band-inner{padding:26px 22px;}
  .faq-q{font-size:16px;}
  .faq-a-inner{padding:0 0 22px 32px;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .scroller .card{flex:0 0 82vw;}
}
@media (max-width:479px){
  .container{padding:0 20px;}
  .hero-meta{flex-direction:column;gap:16px;}
  .row .no{display:none;}
  .link-arrow{white-space:normal;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .reveal{transform:none;}
  .card:hover .card-media img{transform:none;}
  .card:hover{transform:none;}
  .row:hover{padding-left:0;}
}