/* roulang page: index */
:root{
  --primary:#1E6B54;
  --primary-700:#14503F;
  --accent:#E2894A;
  --accent-soft:#FDF1E6;
  --ink-900:#14201C;
  --ink-600:#4A5A54;
  --line:#D9E0DB;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --focus:rgba(30,107,84,.35);
  --danger:#B4552E;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:16px;
  --shadow-card:0 1px 2px rgba(20,32,28,.06),0 8px 24px -12px rgba(20,32,28,.14);
  --shadow-hover:0 4px 8px rgba(20,32,28,.06),0 16px 32px -16px rgba(20,32,28,.18);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
}
h1,h2,h3,h4{margin:0;font-weight:600;color:var(--ink-900);letter-spacing:.2px}
p{margin:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
button,input,textarea,select{font:inherit;color:inherit}
button{background:none;border:none;cursor:pointer}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;box-shadow:0 0 0 3px var(--focus);border-radius:var(--radius-btn)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}
@media(min-width:1280px){.container{padding:0 48px}}
.section{padding:56px 0}
@media(min-width:768px){.section{padding:88px 0}}
@media(min-width:1280px){.section{padding:120px 0}}
.section-tight{padding:44px 0}
@media(min-width:768px){.section-tight{padding:64px 0}}
.section-alt{background:var(--surface)}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.14em;color:var(--accent);margin-bottom:12px}
.section-head{margin-bottom:28px;max-width:760px}
.section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3}
.section-desc{margin-top:14px;color:var(--ink-600);font-size:15.5px;max-width:72ch}
.title-cn{font-size:clamp(30px,4.6vw,52px);line-height:1.18;font-weight:700}
.sub-cn{font-size:17px;color:var(--ink-600);max-width:48ch}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);border-bottom:1px solid transparent;text-decoration:underline;text-underline-offset:4px}
.link-arrow::after{content:"→";font-size:13px;transition:transform .25s ease}
.link-arrow:hover{color:var(--accent);text-decoration-thickness:2px}
.link-arrow:hover::after{transform:translateX(3px)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:12px 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;border:1px solid transparent;transition:transform .2s ease,box-shadow .25s ease,background-color .2s ease,border-color .2s ease,color .2s ease}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 18px -10px rgba(30,107,84,.7)}
.btn-primary:hover{background:var(--primary-700);transform:translateY(-1px);box-shadow:0 10px 24px -12px rgba(20,80,63,.8)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:var(--surface);color:var(--ink-900);border-color:var(--line)}
.btn-ghost:hover{background:var(--accent-soft);border-color:var(--primary);color:var(--primary-700)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#cf7840;transform:translateY(-1px)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}
.badge{display:inline-flex;align-items:center;background:var(--accent-soft);color:#B96B32;font-size:12.5px;font-weight:600;line-height:1;padding:6px 12px;border-radius:999px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-card);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(30,107,84,.3)}
.thumb{background:var(--bg);border-radius:var(--radius-img);overflow:hidden}
.thumb img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/9}
img.reveal{opacity:0;transition:opacity .7s ease}
img.reveal.loaded{opacity:1}

/* 导航 */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);border-bottom:1px solid transparent;transition:box-shadow .25s ease,border-color .25s ease}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:0 6px 18px -14px rgba(20,32,28,.35)}
.header-inner{display:flex;align-items:center;gap:14px;min-height:72px;transition:min-height .25s ease}
.site-header.is-stuck .header-inner{min-height:60px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:36px;height:36px;border-radius:11px;background:var(--primary);display:flex;align-items:center;justify-content:center;color:#fff;flex:0 0 auto}
.brand-mark svg{width:20px;height:20px;stroke-width:1.75}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.4px;white-space:nowrap}
.nav-search{position:relative;display:flex;align-items:center;flex:1 1 auto;max-width:520px;height:44px;background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:0 4px 0 42px;transition:border-color .2s ease,box-shadow .2s ease}
.nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px var(--focus)}
.nav-search-icon{position:absolute;left:15px;top:50%;transform:translateY(-50%);width:18px;height:18px;color:var(--ink-600);stroke-width:1.75}
.nav-search input{flex:1 1 auto;min-width:0;border:none;background:transparent;height:100%;font-size:14.5px;outline:none}
.nav-search input::placeholder{color:#8B9994}
.nav-search button{flex:0 0 auto;height:34px;padding:0 16px;margin-right:4px;border-radius:999px;background:var(--primary);color:#fff;font-size:13.5px;font-weight:600;transition:background-color .2s ease}
.nav-search button:hover{background:var(--primary-700)}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-pill{padding:8px 12px;border-radius:999px;font-size:14px;font-weight:500;color:var(--ink-600);white-space:nowrap;transition:background-color .2s ease,color .2s ease}
.nav-pill:hover{background:var(--accent-soft);color:var(--primary-700)}
.nav-pill.active{background:var(--accent-soft);color:var(--primary-700);font-weight:600}
.nav-cta{padding:9px 18px;min-height:40px;display:inline-flex;align-items:center;border-radius:999px;background:var(--primary);color:#fff;font-size:14px;font-weight:600;white-space:nowrap;transition:background-color .2s ease,transform .2s ease}
.nav-cta:hover{background:var(--primary-700);transform:translateY(-1px)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);align-items:center;justify-content:center;margin-left:auto;background:var(--surface)}
.nav-toggle svg{width:20px;height:20px;stroke-width:1.75}
.mobile-search{display:none;padding-bottom:14px}
.mobile-search form{position:relative;display:flex;align-items:center;height:44px;background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:0 4px 0 42px}
.mobile-search input{flex:1 1 auto;min-width:0;border:none;background:transparent;height:100%;font-size:14.5px;outline:none}
.mobile-search button{height:34px;padding:0 16px;margin-right:4px;border-radius:999px;background:var(--primary);color:#fff;font-size:13.5px;font-weight:600}
@media(max-width:1023px){
  .nav-search{display:none}
  .nav-toggle{display:inline-flex}
  .mobile-search{display:block}
  .nav-links{position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;gap:8px;background:var(--surface);border-bottom:1px solid var(--line);box-shadow:0 18px 30px -22px rgba(20,32,28,.5);padding:14px 20px 20px;display:none}
  .nav-links.open{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
  .nav-pill{text-align:center;border:1px solid var(--line);padding:10px 8px}
  .nav-cta{grid-column:span 2;justify-content:center}
  .header-inner{flex-wrap:wrap}
  .brand{order:1}
  .nav-toggle{order:2}
  .mobile-search{order:3;flex:0 0 100%}
  .nav-links{order:4}
}

/* Hero */
.hero{position:relative;overflow:hidden;background:var(--bg)}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(20,32,28,.35) 1px,transparent 1px);background-size:22px 22px;opacity:.07;pointer-events:none}
.hero-inner{position:relative;display:grid;grid-template-columns:1fr;gap:40px;padding:52px 0 56px}
@media(min-width:1024px){
  .hero-inner{grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding:84px 0 88px}
}
.hero-copy .badge{margin-bottom:16px}
.hero-copy h1{margin-bottom:18px}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:28px}
.trust-line{margin-top:22px;font-size:13.5px;color:var(--ink-600);letter-spacing:.02em}
.hero-search{margin-top:26px}
.hero-search form{position:relative;display:flex;align-items:center;height:56px;background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:0 6px 0 50px;box-shadow:var(--shadow-card);transition:border-color .2s ease,box-shadow .2s ease}
.hero-search form:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px var(--focus)}
.hero-search svg{position:absolute;left:18px;top:50%;transform:translateY(-50%);width:20px;height:20px;color:var(--ink-600);stroke-width:1.75}
.hero-search input{flex:1 1 auto;min-width:0;border:none;background:transparent;height:100%;font-size:15px;outline:none}
.hero-search input::placeholder{color:#8B9994}
.hero-search button{height:44px;padding:0 22px;margin-right:6px;border-radius:999px;background:var(--primary);color:#fff;font-size:14.5px;font-weight:600;transition:background-color .2s ease}
.hero-search button:hover{background:var(--primary-700)}
.hero-visual{position:relative}
.hero-visual .thumb{border-radius:var(--radius-img)}
.hero-visual .thumb img{aspect-ratio:4/3}
.hero-card{position:absolute;right:-6px;bottom:-22px;background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-card);padding:14px 18px;min-width:210px}
.hero-card dl{margin:0;display:grid;gap:6px}
.hero-card .row{display:flex;align-items:baseline;justify-content:space-between;gap:14px;font-size:13.5px}
.hero-card dt{color:var(--ink-600)}
.hero-card dd{margin:0;font-weight:600;color:var(--primary-700);font-variant-numeric:tabular-nums}
@media(max-width:520px){.hero-card{position:static;margin-top:14px;min-width:0}}

/* 能力清单 */
.capability-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:1024px){.capability-grid{grid-template-columns:3fr 9fr;gap:44px}}
.capability-aside{position:relative;padding-left:18px;border-left:2px solid var(--accent)}
.capability-aside h2{font-size:clamp(22px,2.2vw,30px);line-height:1.35;margin-bottom:12px}
.capability-aside p{color:var(--ink-600);font-size:15px;margin-bottom:20px}
.cap-list{display:grid;grid-template-columns:1fr;gap:0}
@media(min-width:768px){.cap-list{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:40px}}
.cap-item{display:flex;gap:16px;padding:20px 0;border-top:1px solid var(--line);transition:background-color .2s ease}
.cap-item:hover{background:rgba(253,241,230,.5)}
.cap-num{flex:0 0 auto;font-size:14px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;padding-top:2px}
.cap-item h3{font-size:18px;line-height:1.45;margin-bottom:6px}
.cap-item p{font-size:14.5px;color:var(--ink-600);line-height:1.8}
.cap-item:nth-child(odd){padding-right:12px}
.cap-list .cap-item:first-child{border-top:1px solid var(--line)}

/* 数据带 */
.metrics{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.metrics-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
@media(min-width:1024px){.metrics-row{grid-template-columns:repeat(4,minmax(0,1fr))}}
.metric{padding:26px 20px;border-bottom:1px solid var(--line)}
@media(min-width:1024px){
  .metric{border-bottom:none;border-right:1px solid var(--line);padding:34px 26px}
  .metric:last-child{border-right:none}
}
.metric strong{display:block;font-size:clamp(30px,3vw,40px);font-weight:600;line-height:1.15;color:var(--primary-700);font-variant-numeric:tabular-nums}
.metric strong span{font-size:16px;font-weight:600;color:var(--ink-600);margin-left:4px}
.metric p{margin-top:8px;font-size:14px;color:var(--ink-600)}

/* 案例卡 */
.case-track{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:768px){.case-track{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:767px){
  .case-track{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:10px;-webkit-overflow-scrolling:touch}
  .case-card{flex:0 0 84%;scroll-snap-align:start}
}
.case-card{overflow:hidden;display:flex;flex-direction:column}
.case-card .thumb{border-radius:0;border-top-left-radius:var(--radius-card);border-top-right-radius:var(--radius-card)}
.case-card .thumb img{aspect-ratio:16/9}
.case-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px}
.case-body h3{font-size:19px;line-height:1.45}
.case-body p{font-size:14.5px;color:var(--ink-600)}
.case-meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:#7C8B85;margin-top:4px}

/* 方案 Z 型 */
.plan-row{display:grid;grid-template-columns:1fr;gap:28px;align-items:center;padding:32px 0;border-bottom:1px solid var(--line)}
.plan-row:last-child{border-bottom:none}
@media(min-width:1024px){
  .plan-row{grid-template-columns:1fr 1fr;gap:56px;padding:44px 0}
  .plan-row.reverse .plan-media{order:-1}
}
.plan-text h3{font-size:22px;margin-bottom:12px;line-height:1.4}
.plan-text p{color:var(--ink-600);font-size:15px;max-width:62ch}
.plan-points{margin-top:18px;display:grid;gap:10px}
.plan-points li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-600)}
.plan-points li::before{content:"";flex:0 0 auto;width:6px;height:6px;margin-top:9px;border-radius:50%;background:var(--accent)}
.plan-media .thumb img{aspect-ratio:4/3}

/* 资讯列表 */
.news-lead{display:flex;flex-direction:column;overflow:hidden}
.news-lead .thumb{border-radius:0;border-top-left-radius:var(--radius-card);border-top-right-radius:var(--radius-card)}
.news-lead .thumb img{aspect-ratio:16/10}
.news-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px}
.news-body h3{font-size:20px;line-height:1.45}
.news-body h3 a:hover{color:var(--primary)}
.news-body p{font-size:14.5px;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:#7C8B85}
.news-small{display:flex;gap:16px;padding:16px;align-items:flex-start}
.news-small .thumb{flex:0 0 96px;width:96px}
.news-small .thumb img{aspect-ratio:1/1}
.news-small h3{font-size:16.5px;line-height:1.5;margin-bottom:6px}
.news-small h3 a:hover{color:var(--primary)}
.news-small p{font-size:13.5px;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:8px}
.news-small .news-meta{font-size:12.5px}
.news-stack{display:grid;gap:16px}
@media(max-width:520px){.news-small{flex-direction:column}.news-small .thumb{width:100%;flex:0 0 auto}.news-small .thumb img{aspect-ratio:16/9}}
.empty-state{border:1px dashed var(--line);border-radius:var(--radius-card);background:var(--surface);padding:36px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px}
.empty-state p{color:var(--ink-600);font-size:15px}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:1024px){.faq-grid{grid-template-columns:4fr 8fr;gap:56px}}
.faq-aside h2{font-size:clamp(22px,2.2vw,30px);line-height:1.35;margin-bottom:14px}
.faq-aside p{color:var(--ink-600);font-size:15px;margin-bottom:22px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;padding:20px 0;font-size:18px;font-weight:600;line-height:1.5;transition:color .2s ease}
.faq-q:hover{color:var(--primary-700)}
.faq-icon{position:relative;flex:0 0 auto;width:20px;height:20px}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;transform:translate(-50%,-50%);transition:transform .25s ease,opacity .25s ease}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item.open .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-item.open .faq-a{max-height:360px}
.faq-a p{padding:0 0 22px;font-size:15px;color:var(--ink-600);max-width:68ch;line-height:1.8}

/* 联系 */
.contact-grid{display:grid;grid-template-columns:1fr;gap:28px}
@media(min-width:1024px){.contact-grid{grid-template-columns:7fr 5fr;gap:40px}}
.form-card{padding:26px 24px 28px}
@media(min-width:768px){.form-card{padding:32px 32px 34px}}
.form-row{display:grid;grid-template-columns:1fr;gap:18px}
@media(min-width:640px){.form-row.two{grid-template-columns:repeat(2,minmax(0,1fr))}}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.field label{font-size:13px;font-weight:500;color:var(--ink-600)}
.field .req{color:var(--accent)}
.field input,.field textarea{width:100%;min-height:44px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-btn);padding:10px 14px;font-size:15px;outline:none;transition:border-color .2s ease,box-shadow .2s ease}
.field textarea{min-height:120px;resize:vertical;line-height:1.75}
.field input:focus,.field textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--focus)}
.field.error input,.field.error textarea{border-color:var(--danger)}
.field .err{display:none;font-size:13px;color:var(--danger)}
.field.error .err{display:block}
.form-actions{display:flex;flex-direction:column;gap:12px;margin-top:6px}
@media(min-width:640px){.form-actions{flex-direction:row;justify-content:flex-end;align-items:center}}
.form-note{font-size:13px;color:var(--ink-600)}
.form-success{display:none;margin-top:16px;padding:12px 16px;border-radius:var(--radius-btn);background:var(--accent-soft);color:var(--primary-700);font-size:14px}
.form-success.show{display:block}
.info-card{padding:24px;display:flex;flex-direction:column;gap:18px}
.info-list{display:grid;gap:14px}
.info-list li{display:flex;gap:12px;font-size:14.5px;color:var(--ink-600)}
.info-list strong{display:block;color:var(--ink-900);font-size:14.5px;font-weight:600}
.info-list svg{flex:0 0 auto;width:20px;height:20px;color:var(--primary);stroke-width:1.75;margin-top:3px}
.map-box{position:relative;border-radius:var(--radius-img);overflow:hidden;aspect-ratio:16/9;background:var(--bg)}
.map-box img{width:100%;height:100%;object-fit:cover}
.map-box span{position:absolute;left:14px;bottom:14px;background:rgba(255,255,255,.92);color:var(--ink-900);font-size:13px;font-weight:600;padding:6px 12px;border-radius:999px}

/* CTA 带 */
.cta-band{position:relative;overflow:hidden;background:var(--primary-700);color:#fff}
.cta-band::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);background-size:24px 24px;opacity:.07;pointer-events:none}
.cta-inner{position:relative;display:grid;grid-template-columns:1fr;gap:22px;padding:48px 0;align-items:center}
@media(min-width:1024px){.cta-inner{grid-template-columns:8fr 4fr;gap:40px;padding:64px 0}}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.4vw,30px);line-height:1.35}
.cta-inner p{margin-top:12px;color:rgba(255,255,255,.82);font-size:15px;max-width:62ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-start}
@media(min-width:1024px){.cta-actions{justify-content:flex-end}}
.btn-on-dark{background:#fff;color:var(--primary-700)}
.btn-on-dark:hover{background:var(--accent-soft);color:var(--primary-700);transform:translateY(-1px)}
.btn-outline-dark{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.btn-outline-dark:hover{border-color:#fff;background:rgba(255,255,255,.12)}

/* 页脚 */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72)}
.footer-top{display:grid;grid-template-columns:1fr;gap:32px;padding:48px 0 32px}
@media(min-width:768px){.footer-top{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px}}
@media(min-width:1024px){.footer-top{grid-template-columns:1.6fr 1fr 1fr 1fr 1.2fr;gap:32px;padding:64px 0 44px}}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700}
.footer-brand .brand-mark{background:rgba(255,255,255,.14)}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:34ch}
.footer-col h3{color:#fff;font-size:14.5px;font-weight:600;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66);transition:color .2s ease}
.footer-col a:hover{color:var(--accent)}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.66);margin-bottom:12px}
.footer-contact svg{flex:0 0 auto;width:18px;height:18px;color:var(--accent);stroke-width:1.75;margin-top:4px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;display:flex;flex-direction:column;gap:12px;font-size:13px;color:rgba(255,255,255,.55)}
@media(min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between}}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:16px}
.footer-bottom a:hover{color:#fff}

/* roulang page: article */
:root{
  --primary:#1E6B54;
  --primary-700:#14503F;
  --accent:#E2894A;
  --accent-soft:#FDF1E6;
  --ink-900:#14201C;
  --ink-600:#4A5A54;
  --line:#D9E0DB;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --focus:rgba(30,107,84,.35);
  --danger:#B4552E;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-lg:16px;
  --shadow-card:0 1px 2px rgba(20,32,28,.06),0 8px 24px -12px rgba(20,32,28,.14);
  --shadow-hover:0 4px 8px rgba(20,32,28,.08),0 16px 32px -16px rgba(20,32,28,.2);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-600);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:768px){.container{padding-left:32px;padding-right:32px}}
@media (min-width:1280px){.container{padding-left:48px;padding-right:48px}}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,244,239,.94);
  border-bottom:1px solid transparent;
  transition:background-color .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-stuck{
  background:#fff;
  border-bottom-color:var(--line);
  box-shadow:0 1px 14px rgba(20,32,28,.07);
}
.nav-inner{display:flex;align-items:center;gap:16px;height:72px;transition:height .25s ease}
@media (min-width:1024px){
  .site-header.is-stuck .nav-inner{height:60px}
}
.brand{
  display:inline-flex;align-items:center;gap:10px;flex-shrink:0;
  font-size:17px;font-weight:700;color:var(--ink-900);letter-spacing:.01em;white-space:nowrap;
}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;
  background:var(--primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
}
.brand-mark svg{width:20px;height:20px;stroke-width:1.75}
.brand:hover .brand-mark{background:var(--primary-700)}
.nav-search{
  order:3;display:none;align-items:center;gap:0;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  height:44px;padding:0 4px 0 16px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search svg{width:18px;height:18px;flex:0 0 18px;color:var(--ink-600);stroke-width:1.75}
.nav-search input{
  flex:1 1 auto;min-width:0;height:100%;border:0;outline:0;background:transparent;
  font-size:14px;padding:0 10px;color:var(--ink-900);
}
.nav-search input::placeholder{color:#8A9691}
.nav-search button{
  border:0;height:34px;padding:0 16px;border-radius:999px;cursor:pointer;
  background:var(--primary);color:#fff;font-size:13.5px;
  transition:background-color .2s ease;
}
.nav-search button:hover{background:var(--primary-700)}
.nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px var(--focus)}
.nav-links{order:4;flex-shrink:0;align-items:center;gap:4px}
.nav-pill{
  display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:999px;
  font-size:14.5px;color:var(--ink-600);
  transition:background-color .2s ease,color .2s ease;
}
.nav-pill:hover{background:var(--accent-soft);color:var(--primary)}
.nav-pill.active{background:var(--primary);color:#fff}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;height:38px;padding:0 18px;border-radius:999px;
  background:var(--primary);color:#fff;font-size:14.5px;
  transition:background-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.nav-cta:hover{background:var(--primary-700);transform:translateY(-1px);box-shadow:0 10px 20px -14px rgba(20,80,63,.9)}
.nav-burger{
  order:2;display:none;margin-left:auto;
  width:44px;height:44px;border-radius:10px;cursor:pointer;
  border:1px solid var(--line);background:#fff;color:var(--ink-900);
  align-items:center;justify-content:center;
}
.nav-burger svg{width:20px;height:20px;stroke-width:1.75}
.nav-burger .ic-close{display:none}
.nav-burger.is-open .ic-menu{display:none}
.nav-burger.is-open .ic-close{display:block}
@media (min-width:1024px){
  .nav-search{display:flex;flex:1 1 auto;max-width:380px;margin:0 auto}
  .nav-links{display:flex}
}
@media (max-width:1023px){
  .nav-inner{flex-wrap:wrap;height:auto;padding-top:12px;padding-bottom:12px;gap:12px}
  .nav-burger{display:inline-flex}
  .nav-search{flex:1 1 100%;max-width:none;margin:0}
  .nav-links{
    flex:1 1 100%;display:none;grid-template-columns:1fr 1fr;gap:8px;
    padding-top:14px;margin-top:2px;border-top:1px solid var(--line);
  }
  .nav-links.is-open{display:grid}
  .nav-pill{justify-content:center;height:44px;border-radius:10px;background:#fff;border:1px solid var(--line)}
  .nav-pill.active{background:var(--primary);border-color:var(--primary);color:#fff}
  .nav-cta{grid-column:1 / -1;height:44px;border-radius:10px}
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:500;border:1px solid transparent;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-700);transform:translateY(-1px);box-shadow:0 12px 24px -14px rgba(20,80,63,.85)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:var(--surface);border-color:var(--line);color:var(--ink-900)}
.btn-ghost:hover{background:var(--accent-soft);border-color:var(--primary);color:var(--primary)}
.btn-onDark{background:#fff;color:var(--primary-700)}
.btn-onDark:hover{background:var(--accent-soft);transform:translateY(-1px)}
.btn-sm{min-height:40px;padding:9px 18px;font-size:14px}
.link-text{color:var(--primary);text-decoration:underline;text-underline-offset:4px;transition:color .2s ease}
.link-text:hover{color:var(--accent);text-decoration-thickness:2px}
.badge{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;
  background:var(--accent-soft);color:var(--accent);font-size:13px;font-weight:500;white-space:nowrap;
}
.badge:empty{display:none}

/* ============ 文章头部 ============ */
.article-hero{padding:28px 0 0}
@media (min-width:768px){.article-hero{padding:44px 0 0}}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-600);margin-bottom:18px;
}
.breadcrumb a{transition:color .2s ease}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--accent)}
.article-title{
  margin:0 0 18px;max-width:900px;
  font-size:clamp(26px,4vw,40px);line-height:1.24;font-weight:700;color:var(--ink-900);
  letter-spacing:-.01em;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:16px;
  padding-bottom:22px;border-bottom:1px solid var(--line);
  font-size:13.5px;color:var(--ink-600);
}
.meta-item{display:inline-flex;align-items:center;gap:7px}
.meta-item svg{width:15px;height:15px;flex:0 0 15px;stroke-width:1.75;color:var(--primary)}

/* ============ 文章主体布局 ============ */
.article-section{padding:36px 0 0}
@media (min-width:768px){.article-section{padding:48px 0 0}}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:44px;align-items:start}
@media (min-width:1280px){.article-layout{grid-template-columns:minmax(0,1fr) 300px}}
.article-main{min-width:0}

.article-body{
  max-width:820px;
  font-size:16px;line-height:1.9;color:var(--ink-600);
  word-wrap:break-word;
}
@media (max-width:639px){.article-body{font-size:15.5px}}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.25em}
.article-body h2{
  font-size:clamp(20px,2.2vw,25px);line-height:1.35;font-weight:600;color:var(--ink-900);
  margin:1.9em 0 .8em;padding-left:14px;border-left:4px solid var(--primary);
}
.article-body h3{
  font-size:18px;line-height:1.45;font-weight:600;color:var(--ink-900);
  margin:1.6em 0 .6em;
}
.article-body h4{font-size:16.5px;font-weight:600;color:var(--ink-900);margin:1.4em 0 .5em}
.article-body ul,.article-body ol{margin:0 0 1.25em;padding-left:1.4em}
.article-body li{margin:.4em 0}
.article-body li::marker{color:var(--accent)}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:4px}
.article-body a:hover{color:var(--accent)}
.article-body strong{color:var(--ink-900);font-weight:600}
.article-body img{border-radius:12px;margin:1.4em 0;height:auto}
.article-body figure{margin:1.4em 0}
.article-body figcaption{font-size:13.5px;color:var(--ink-600);text-align:center;margin-top:8px}
.article-body blockquote{
  margin:1.4em 0;padding:14px 20px;border-left:3px solid var(--accent);
  background:var(--accent-soft);border-radius:0 10px 10px 0;color:var(--ink-900);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.article-body th{background:var(--bg);color:var(--ink-900);font-weight:600}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.article-body code{
  background:#EFF3F0;color:var(--primary-700);padding:2px 6px;border-radius:6px;
  font-size:14px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body pre{
  background:var(--ink-900);color:#E6EFEA;padding:16px 18px;border-radius:12px;
  overflow:auto;font-size:14px;line-height:1.7;margin:1.4em 0;
}
.article-body pre code{background:transparent;color:inherit;padding:0}

.article-empty{
  max-width:820px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:36px 28px;box-shadow:var(--shadow-card);
}
.article-empty h2{margin:0 0 12px;font-size:22px;font-weight:600;color:var(--ink-900)}
.article-empty p{margin:0 0 22px;font-size:15.5px;color:var(--ink-600);max-width:60ch}

/* ============ 相关推荐 ============ */
.related{margin-top:52px;padding-top:32px;border-top:1px solid var(--line);max-width:820px}
.related h2{margin:0 0 18px;font-size:22px;font-weight:600;color:var(--ink-900)}
.related-list{list-style:none;margin:0;padding:0}
.related-list li + li{margin-top:2px}
.r-link{
  display:block;padding:12px 14px 12px 16px;border-left:3px solid var(--accent);border-radius:0 10px 10px 0;
  transition:background-color .2s ease,transform .2s ease;
}
.r-link:hover{background:var(--accent-soft);transform:translateX(2px)}
.r-title{display:block;font-size:16px;font-weight:600;color:var(--ink-900);line-height:1.5}
.r-link:hover .r-title{color:var(--primary)}
.r-desc{display:block;font-size:14px;color:var(--ink-600);margin-top:2px}
.back-row{margin-top:34px;max-width:820px}

/* ============ 侧栏 ============ */
.article-side{display:grid;gap:18px}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px;box-shadow:var(--shadow-card);
}
.side-card h3{margin:0 0 12px;font-size:16px;font-weight:600;color:var(--ink-900)}
.side-list{list-style:none;margin:0;padding:0;font-size:14.5px}
.side-list li{padding:9px 0;border-bottom:1px dashed var(--line)}
.side-list li:last-child{border-bottom:0;padding-bottom:0}
.side-list a{transition:color .2s ease}
.side-list a:hover{color:var(--primary)}
.side-card p{margin:0 0 16px;font-size:14px;line-height:1.8;color:var(--ink-600)}

/* ============ CTA 带 ============ */
.cta-band{margin-top:72px;background:var(--primary);color:#fff;position:relative;overflow:hidden}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:22px 22px;opacity:.4;pointer-events:none;
}
.cta-inner{
  position:relative;z-index:1;
  display:flex;flex-direction:column;gap:24px;
  padding-top:44px;padding-bottom:44px;
}
@media (min-width:768px){
  .cta-inner{flex-direction:row;align-items:center;justify-content:space-between;gap:40px;padding-top:52px;padding-bottom:52px}
}
.cta-inner h2{margin:0 0 8px;font-size:clamp(22px,2.4vw,28px);line-height:1.35;font-weight:600;color:#fff}
.cta-inner p{margin:0;font-size:15px;line-height:1.8;color:rgba(255,255,255,.82);max-width:60ch}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px}
.cta-actions .link-text{color:#fff;text-decoration-color:rgba(255,255,255,.5)}
.cta-actions .link-text:hover{color:var(--accent-soft);text-decoration-color:var(--accent-soft)}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);margin-top:0}
.footer-top{display:grid;grid-template-columns:1fr;gap:32px;padding-top:56px;padding-bottom:40px}
@media (min-width:640px){.footer-top{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-top{grid-template-columns:1.6fr 1fr 1fr 1fr 1.2fr;gap:28px}}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:14px}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);color:#fff}
.footer-desc{margin:0;font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:34ch}
.footer-col h3{margin:0 0 14px;font-size:14px;font-weight:600;color:#fff;letter-spacing:.02em}
.footer-col ul{list-style:none;margin:0;padding:0;font-size:14px}
.footer-col li{margin-bottom:10px}
.footer-col a{transition:color .2s ease}
.footer-col a:hover{color:var(--accent)}
.footer-contact li{display:flex;gap:9px;align-items:flex-start;line-height:1.7}
.footer-contact svg{width:16px;height:16px;flex:0 0 16px;margin-top:5px;stroke-width:1.75;color:var(--accent)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;font-size:13px;
}
.footer-bottom p{margin:0}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:16px}
.footer-bottom a{transition:color .2s ease}
.footer-bottom a:hover{color:#fff}

/* roulang page: category1 */
:root{
  --primary:#1E6B54;
  --primary-700:#14503F;
  --accent:#E2894A;
  --accent-soft:#FDF1E6;
  --ink-900:#14201C;
  --ink-600:#4A5A54;
  --line:#D9E0DB;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --focus:rgba(30,107,84,.35);
  --danger:#B4552E;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:16px;
  --shadow-card:0 1px 2px rgba(20,32,28,.06),0 8px 24px -12px rgba(20,32,28,.14);
  --shadow-hover:0 4px 8px rgba(20,32,28,.08),0 16px 32px -16px rgba(20,32,28,.18);
}

.page-body{
  margin:0;
  padding:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
.page-body *,
.page-body *::before,
.page-body *::after{box-sizing:border-box;}
.page-body img{max-width:100%;display:block;}
.page-body a{color:inherit;text-decoration:none;}
.page-body button,.page-body input{font-family:inherit;font-size:inherit;}
.page-body h1,.page-body h2,.page-body h3,.page-body h4{margin:0;font-weight:600;color:var(--ink-900);}
.page-body p{margin:0;}
.page-body ul,.page-body ol{margin:0;padding:0;list-style:none;}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:768px){.container{padding-left:32px;padding-right:32px;}}
@media (min-width:1280px){.container{padding-left:48px;padding-right:48px;}}

.section{padding:56px 0;}
@media (min-width:768px){.section{padding:88px 0;}}
@media (min-width:1280px){.section{padding:104px 0;}}

.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:500;letter-spacing:.08em;
  color:var(--primary);text-transform:uppercase;
  margin-bottom:12px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--accent);border-radius:999px;}

h1{font-size:clamp(30px,4.6vw,52px);line-height:1.18;font-weight:700;}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3;font-weight:600;}
h3{font-size:19px;line-height:1.45;font-weight:600;}

.section-head{max-width:72ch;margin-bottom:32px;}
.section-head p{margin-top:12px;color:var(--ink-600);font-size:16px;line-height:1.85;}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 18px -14px rgba(20,32,28,.45);}
.header-inner{
  display:flex;align-items:center;flex-wrap:wrap;gap:14px;
  min-height:72px;padding-top:10px;padding-bottom:10px;
  transition:min-height .25s ease;
}
.site-header.is-scrolled .header-inner{min-height:60px;}

.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:17px;font-weight:700;color:var(--ink-900);
  flex:0 0 auto;
}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  background:var(--primary);color:#fff;flex:0 0 auto;
}
.brand-mark svg{width:19px;height:19px;stroke-width:1.75;}

.nav-search{
  flex:1 1 260px;max-width:520px;
  display:flex;align-items:center;gap:10px;
  height:44px;padding:0 6px 0 16px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:999px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px var(--focus);}
.nav-search .search-icon{width:18px;height:18px;flex:0 0 auto;color:var(--ink-600);stroke-width:1.75;}
.nav-search input{
  flex:1 1 auto;min-width:0;
  border:0;outline:0;background:transparent;
  font-size:14px;color:var(--ink-900);height:100%;
}
.nav-search input::placeholder{color:#98A39E;}
.nav-search .search-btn{
  flex:0 0 auto;height:32px;padding:0 16px;
  border:0;border-radius:999px;
  background:var(--primary);color:#fff;
  font-size:13px;font-weight:500;cursor:pointer;
  transition:background-color .2s ease;
}
.nav-search .search-btn:hover{background:var(--primary-700);}
.nav-search .search-btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}

.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;flex:0 0 auto;}
.nav-pill{
  display:inline-flex;align-items:center;justify-content:center;
  height:38px;padding:0 14px;border-radius:999px;
  font-size:14px;color:var(--ink-600);white-space:nowrap;
  transition:background-color .2s ease,color .2s ease;
}
.nav-pill:hover{background:var(--accent-soft);color:var(--primary);}
.nav-pill:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.nav-pill.active{background:var(--accent-soft);color:var(--primary);font-weight:600;}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:38px;padding:0 18px;border-radius:999px;
  background:var(--primary);color:#fff;font-size:14px;font-weight:500;
  white-space:nowrap;transition:background-color .2s ease,transform .2s ease;
}
.nav-cta:hover{background:var(--primary-700);transform:translateY(-1px);}
.nav-cta:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}

.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:var(--surface);
  color:var(--ink-900);cursor:pointer;
  transition:background-color .2s ease,border-color .2s ease;
}
.nav-toggle:hover{border-color:var(--primary);background:var(--accent-soft);}
.nav-toggle svg{width:20px;height:20px;stroke-width:1.75;}

@media (max-width:1023px){
  .nav-toggle{display:inline-flex;order:2;margin-left:auto;}
  .brand{order:1;}
  .nav-search{order:3;flex:1 1 100%;max-width:none;}
  .nav-links{
    order:4;flex:1 1 100%;margin-left:0;
    display:none;
  }
  .nav-links.open{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:8px;
    padding-top:6px;
    border-top:1px solid var(--line);
  }
  .nav-pill{height:42px;border:1px solid var(--line);background:var(--surface);}
  .nav-cta{grid-column:1/-1;height:44px;}
}

/* ============ hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--surface);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.09;pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(246,244,239,.55),rgba(255,255,255,.92));
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.page-hero-inner{padding:28px 0 44px;}
@media (min-width:768px){.page-hero-inner{padding:40px 0 64px;}}

.breadcrumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-600);margin-bottom:18px;flex-wrap:wrap;
}
.breadcrumb a{transition:color .2s ease;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:#B7C1BC;}
.breadcrumb .current{color:var(--accent);font-weight:500;}

.hero-sub{margin-top:14px;font-size:16px;color:var(--ink-600);max-width:60ch;}

.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;
  background:var(--accent-soft);color:var(--accent);
  font-size:13px;font-weight:500;
}
.tag-neutral{background:var(--bg);color:var(--ink-600);border:1px solid var(--line);}

.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 24px;
  border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:500;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  text-align:center;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-card);}
.btn-primary:hover{background:var(--primary-700);transform:translateY(-1px);box-shadow:var(--shadow-hover);}
.btn-primary:active{transform:none;box-shadow:var(--shadow-card);}
.btn-ghost{background:var(--surface);color:var(--ink-900);border-color:var(--line);}
.btn-ghost:hover{background:var(--accent-soft);border-color:var(--primary);color:var(--primary);}
.btn-ghost:active{transform:none;}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.btn-sm{min-height:38px;padding:8px 18px;font-size:14px;}

.text-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:15px;font-weight:500;
  border-bottom:1px solid transparent;
  transition:color .2s ease,border-color .2s ease;
}
.text-link:hover{color:var(--accent);border-bottom-color:var(--accent);}
.text-link svg{width:16px;height:16px;stroke-width:1.75;}

/* ============ 能力清单（左窄标题 + 右侧两列不等高清单） ============ */
.capability-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:1024px){
  .capability-grid{grid-template-columns:minmax(240px,320px) minmax(0,1fr);gap:56px;}
}
.capability-aside h2{margin-bottom:14px;}
.capability-aside p{color:var(--ink-600);font-size:15.5px;}
.capability-aside .text-link{margin-top:20px;}

.capability-list{
  display:grid;grid-template-columns:1fr;gap:0;
}
@media (min-width:640px){
  .capability-list{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:32px;}
}
.capability-item{
  position:relative;
  padding:22px 20px 22px 24px;
  border-top:1px solid var(--line);
  transition:background-color .2s ease;
}
.capability-item:hover{background:rgba(253,241,230,.45);}
.capability-item::before{
  content:"";position:absolute;left:0;top:26px;bottom:26px;width:3px;
  background:var(--accent);border-radius:999px;
}
.capability-num{
  font-size:13px;font-weight:600;color:var(--accent);
  letter-spacing:.06em;font-variant-numeric:tabular-nums;
  display:block;margin-bottom:6px;
}
.capability-item h3{margin-bottom:8px;font-size:18px;}
.capability-item p{color:var(--ink-600);font-size:15px;line-height:1.8;}

/* ============ 功能条目（2 列配图卡 + 01/02 编号） ============ */
.module-grid{
  display:grid;grid-template-columns:1fr;gap:24px;
}
@media (min-width:768px){
  .module-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
}
.module-card{
  display:flex;flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.module-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(30,107,84,.3);}
.module-media{
  position:relative;aspect-ratio:16/9;background:var(--bg);overflow:hidden;
}
.module-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .4s ease;
}
.module-card:hover .module-media img{transform:scale(1.03);}
.module-index{
  position:absolute;left:16px;top:16px;
  display:inline-flex;align-items:center;justify-content:center;
  min-width:44px;height:28px;padding:0 10px;border-radius:999px;
  background:rgba(20,32,28,.72);color:#fff;
  font-size:13px;font-weight:600;font-variant-numeric:tabular-nums;
  backdrop-filter:blur(2px);
}
.module-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.module-body h3{font-size:19px;}
.module-body p{color:var(--ink-600);font-size:15px;line-height:1.8;}
.module-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--ink-600);
}
.module-meta .arrow{
  display:inline-flex;align-items:center;gap:4px;
  color:var(--primary);font-weight:500;
}
.module-meta .arrow svg{width:14px;height:14px;stroke-width:1.75;}

/* ============ 适用场景清单 ============ */
.scene-list{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.scene-row{
  display:grid;grid-template-columns:1fr;gap:6px;
  padding:22px 22px;
  border-bottom:1px solid var(--line);
  transition:background-color .2s ease;
}
.scene-row:last-child{border-bottom:0;}
.scene-row:hover{background:rgba(253,241,230,.45);}
@media (min-width:768px){
  .scene-row{grid-template-columns:220px minmax(0,1fr);gap:28px;align-items:baseline;padding:24px 28px;}
}
.scene-title{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:600;}
.scene-title .dot{
  width:8px;height:8px;border-radius:999px;background:var(--accent);flex:0 0 auto;
}
.scene-row p{color:var(--ink-600);font-size:15px;line-height:1.8;}

/* ============ 流程 ============ */
.flow-list{
  display:grid;grid-template-columns:1fr;gap:20px;
  counter-reset:flow;
}
@media (min-width:640px){.flow-list{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.flow-list{grid-template-columns:repeat(4,minmax(0,1fr));}}
.flow-item{
  position:relative;
  padding:24px 22px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.flow-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(30,107,84,.3);}
.flow-num{
  display:inline-block;
  font-size:24px;font-weight:600;color:var(--primary);
  font-variant-numeric:tabular-nums;line-height:1;
  margin-bottom:14px;
}
.flow-item h3{font-size:17px;margin-bottom:8px;}
.flow-item p{color:var(--ink-600);font-size:14.5px;line-height:1.8;}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:1024px){
  .faq-grid{grid-template-columns:repeat(12,minmax(0,1fr));gap:24px;}
  .faq-aside{grid-column:span 4;}
  .faq-main{grid-column:span 8;}
}
.faq-aside h2{margin-bottom:14px;}
.faq-aside p{color:var(--ink-600);font-size:15.5px;margin-bottom:20px;}
.faq-contact{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:20px;
  box-shadow:var(--shadow-card);
}
.faq-contact h3{font-size:16px;margin-bottom:8px;}
.faq-contact p{font-size:14px;color:var(--ink-600);margin-bottom:14px;}

.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 4px;
  background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:18px;font-weight:600;color:var(--ink-900);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--primary);}
.faq-q:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.faq-icon{
  position:relative;flex:0 0 auto;
  width:22px;height:22px;border-radius:999px;
  border:1px solid var(--line);
  transition:background-color .2s ease,border-color .2s ease;
}
.faq-icon::before,
.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--primary);border-radius:999px;
  transform:translate(-50%,-50%);
  transition:opacity .2s ease,transform .2s ease;
}
.faq-icon::before{width:10px;height:1.75px;}
.faq-icon::after{width:1.75px;height:10px;}
.faq-item.open .faq-icon{background:var(--accent-soft);border-color:var(--accent);}
.faq-item.open .faq-icon::before{background:var(--accent);}
.faq-item.open .faq-icon::after{opacity:0;transform:translate(-50%,-50%) scaleY(.2);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s ease;
}
.faq-a p{
  padding:0 4px 22px;
  color:var(--ink-600);font-size:15px;line-height:1.8;max-width:68ch;
}

/* ============ 交叉链接 ============ */
.cross-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){.cross-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}}
.cross-card{
  display:flex;flex-direction:column;gap:10px;
  padding:24px 22px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.cross-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(30,107,84,.3);}
.cross-card:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.cross-card h3{font-size:18px;}
.cross-card p{color:var(--ink-600);font-size:14.5px;line-height:1.8;}
.cross-card .cross-arrow{margin-top:auto;color:var(--primary);font-size:14px;font-weight:500;}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink-900);
  color:#fff;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:44px 44px;
  opacity:.6;pointer-events:none;
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;flex-direction:column;gap:22px;
  padding:44px 0;
}
@media (min-width:900px){
  .cta-inner{flex-direction:row;align-items:center;justify-content:space-between;padding:56px 0;}
}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.4vw,30px);}
.cta-inner p{color:rgba(255,255,255,.72);font-size:15px;margin-top:10px;max-width:60ch;}
.cta-band .btn-primary{background:var(--accent);color:#1B120A;}
.cta-band .btn-primary:hover{background:#D07C3B;color:#1B120A;}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.35);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff;color:#fff;}

/* ============ footer ============ */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);}
.footer-top{
  display:grid;grid-template-columns:1fr;gap:32px;
  padding:48px 0 32px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
@media (min-width:640px){.footer-top{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){
  .footer-top{grid-template-columns:1.6fr 1fr 1fr 1fr 1.3fr;gap:28px;padding:64px 0 40px;}
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  color:#fff;font-size:17px;font-weight:700;margin-bottom:14px;
}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);color:#fff;}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:34ch;}
.footer-col h3{
  font-size:14px;font-weight:600;color:#fff;margin-bottom:14px;letter-spacing:.04em;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68);transition:color .2s ease;}
.footer-col a:hover{color:var(--accent);}
.footer-contact li{display:flex;align-items:flex-start;gap:8px;font-size:14px;line-height:1.7;}
.footer-contact svg{width:16px;height:16px;stroke-width:1.75;margin-top:5px;flex:0 0 auto;color:var(--accent);}
.footer-bottom{
  display:flex;flex-direction:column;gap:12px;
  padding:22px 20px 30px;
  font-size:13px;color:rgba(255,255,255,.55);
}
@media (min-width:768px){
  .footer-bottom{flex-direction:row;align-items:center;justify-content:space-between;padding:22px 32px 34px;}
}
@media (min-width:1280px){.footer-bottom{padding:22px 48px 34px;}}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:16px;}
.footer-bottom a{transition:color .2s ease;}
.footer-bottom a:hover{color:var(--accent);}

/* 滚动进入动画（轻量） */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease;}
.reveal.visible{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
}

/* roulang page: category2 */
:root{
  --primary:#1E6B54;
  --primary-700:#14503F;
  --accent:#E2894A;
  --accent-soft:#FDF1E6;
  --ink-900:#14201C;
  --ink-600:#4A5A54;
  --line:#D9E0DB;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --focus:rgba(30,107,84,.35);
  --danger:#B4552E;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:16px;
  --shadow-card:0 1px 2px rgba(20,32,28,.06),0 8px 24px -12px rgba(20,32,28,.14);
  --shadow-card-hover:0 4px 8px rgba(20,32,28,.08),0 16px 32px -16px rgba(20,32,28,.18);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
svg{display:block}
:focus-visible{outline:2px solid var(--focus);outline-offset:2px}
h1{font-size:clamp(30px,4.6vw,52px);line-height:1.18;font-weight:700}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3;font-weight:600}
h3{font-size:18px;line-height:1.45;font-weight:600}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}
@media(min-width:1280px){.container{padding:0 48px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(246,244,239,.96);
  border-bottom:1px solid transparent;
  transition:background-color .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.site-header.is-scrolled{
  background:#fff;
  border-bottom-color:var(--line);
  box-shadow:0 10px 24px -20px rgba(20,32,28,.55);
}
.header-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px 14px;
  padding:12px 0;
  min-height:72px;
  transition:min-height .22s ease,padding .22s ease;
}
.brand{order:1;display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:600;letter-spacing:.01em;color:var(--ink-900)}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:var(--primary);color:#fff;
  display:grid;place-items:center;flex:0 0 auto;
}
.brand-mark svg{width:20px;height:20px;stroke-width:1.75}
.brand:hover .brand-mark{background:var(--primary-700)}

.nav-toggle{
  order:2;margin-left:auto;
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--radius-btn);
  background:#fff;border:1px solid var(--line);color:var(--ink-900);
  transition:border-color .18s,color .18s;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary)}
.nav-toggle svg{width:20px;height:20px;stroke-width:1.75}

.nav-search{
  order:3;flex:1 1 100%;
  display:flex;align-items:center;gap:10px;
  height:46px;padding:0 6px 0 16px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  transition:border-color .18s,box-shadow .18s;
}
.nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px var(--focus)}
.nav-search .search-icon{width:18px;height:18px;flex:0 0 auto;color:var(--ink-600);stroke-width:1.75}
.nav-search input{
  flex:1 1 auto;min-width:0;height:100%;
  border:0;background:transparent;outline:none;
  font-size:14.5px;color:var(--ink-900);
}
.nav-search input::placeholder{color:#8B9A93}
.search-btn{
  flex:0 0 auto;height:36px;padding:0 18px;border:0;
  border-radius:999px;background:var(--primary);color:#fff;
  font-size:13.5px;font-weight:500;
  transition:background-color .18s,transform .18s;
}
.search-btn:hover{background:var(--primary-700)}
.search-btn:active{transform:translateY(1px)}

.nav-links{order:4;display:flex;align-items:center;gap:4px}
.nav-pill{
  display:inline-flex;align-items:center;height:36px;
  padding:0 14px;border-radius:999px;
  font-size:14px;color:var(--ink-600);
  transition:background-color .18s,color .18s;
}
.nav-pill:hover{background:#fff;color:var(--primary)}
.nav-pill.active{background:var(--primary);color:#fff}
.nav-pill.active:hover{background:var(--primary-700);color:#fff}
.nav-cta{
  display:inline-flex;align-items:center;height:36px;
  padding:0 18px;margin-left:6px;
  border-radius:999px;background:var(--accent);color:#fff;
  font-size:14px;font-weight:500;
  transition:background-color .18s,transform .18s;
}
.nav-cta:hover{background:#cf7736;transform:translateY(-1px)}
.nav-cta:active{transform:translateY(0)}

@media(max-width:1023px){
  .nav-links{
    display:none;
    flex:1 1 100%;
    grid-template-columns:1fr 1fr;
    gap:8px;
    padding-bottom:14px;
  }
  .nav-links.is-open{display:grid}
  .nav-pill{
    display:flex;align-items:center;justify-content:center;
    height:44px;padding:0 12px;
    background:#fff;border:1px solid var(--line);
    border-radius:var(--radius-btn);
  }
  .nav-pill.active{background:var(--primary);border-color:var(--primary);color:#fff}
  .nav-cta{
    grid-column:1 / -1;justify-content:center;
    height:44px;margin-left:0;border-radius:var(--radius-btn);
  }
}
@media(min-width:1024px){
  .header-inner{flex-wrap:nowrap;gap:18px;padding:0;min-height:72px;height:72px}
  .site-header.is-scrolled .header-inner{height:60px;min-height:60px}
  .nav-toggle{display:none}
  .nav-search{order:2;flex:1 1 auto;max-width:520px;margin:0 auto}
  .nav-links{order:3;flex:0 0 auto;width:auto;padding-bottom:0}
}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  color:#fff;
  background:var(--primary-700) url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding:48px 0 46px;
}
.page-hero::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(104deg,rgba(20,80,63,.95) 0%,rgba(20,50,42,.86) 55%,rgba(20,32,28,.78) 100%);
}
.page-hero::after{
  content:'';position:absolute;inset:0;pointer-events:none;opacity:.7;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:36px 36px;
}
.page-hero .container{position:relative;z-index:1}
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,.72);margin-bottom:18px;
}
.breadcrumb a{transition:color .18s}
.breadcrumb a:hover{color:#fff}
.breadcrumb span.sep{color:rgba(255,255,255,.42)}
.breadcrumb .current{color:var(--accent)}
.page-hero h1{max-width:22ch;color:#fff}
.page-hero-sub{
  margin-top:14px;font-size:15.5px;line-height:1.7;
  color:rgba(255,255,255,.82);max-width:52ch;
}
.hero-points{
  margin-top:22px;font-size:13.5px;letter-spacing:.01em;
  color:rgba(255,255,255,.68);
}
@media(min-width:768px){
  .page-hero{padding:64px 0 60px}
  .hero-points{margin-top:26px}
}

/* ---------- sections ---------- */
.section{padding:56px 0}
@media(min-width:768px){.section{padding:88px 0}}
@media(min-width:1280px){.section{padding:120px 0}}
.section--alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:72ch}
.section-head p{margin-top:12px;color:var(--ink-600);font-size:15.5px;line-height:1.85}
.eyebrow{
  display:inline-block;margin-bottom:14px;
  font-size:12.5px;font-weight:600;letter-spacing:.14em;
  color:var(--primary);
}
.section-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px;align-items:center}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 24px;
  border:1px solid transparent;border-radius:var(--radius-btn);
  font-size:15px;font-weight:500;white-space:nowrap;
  transition:background-color .18s,color .18s,border-color .18s,transform .18s,box-shadow .18s;
}
.btn svg{width:17px;height:17px;stroke-width:1.75}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 1px 2px rgba(20,32,28,.1)}
.btn-primary:hover{background:var(--primary-700);transform:translateY(-1px);box-shadow:0 10px 22px -12px rgba(20,32,28,.6)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink-900)}
.btn-ghost:hover{background:var(--accent-soft);border-color:var(--primary);color:var(--primary-700)}
.btn-on-dark{background:#fff;color:var(--primary-700)}
.btn-on-dark:hover{background:var(--accent-soft);transform:translateY(-1px)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.45);color:#fff}
.btn-outline-light:hover{border-color:#fff;background:rgba(255,255,255,.1)}
.btn[disabled],.btn.is-disabled{opacity:.55;pointer-events:none}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;color:var(--primary);
  text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px;
  transition:color .18s,text-decoration-thickness .18s;
}
.link-arrow svg{width:15px;height:15px;stroke-width:1.75}
.link-arrow:hover{color:var(--accent);text-decoration-thickness:2px}

/* ---------- badges & tags ---------- */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;background:var(--accent-soft);color:var(--danger);
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.badge--green{background:rgba(30,107,84,.1);color:var(--primary-700)}

/* ---------- prepare ---------- */
.prep{display:grid;gap:30px}
@media(min-width:1024px){.prep{grid-template-columns:3fr 9fr;gap:52px;align-items:start}}
.prep-aside h2{max-width:14ch}
.prep-aside p{margin-top:14px;color:var(--ink-600);font-size:15px;line-height:1.85}
.prep-aside .section-actions{margin-top:22px}
.prep-list{display:grid}
@media(min-width:768px){.prep-list{grid-template-columns:1fr 1fr;column-gap:44px}}
.prep-item{
  display:flex;gap:14px;
  padding:20px 10px 20px 0;
  border-bottom:1px solid var(--line);
  transition:background-color .18s;
}
.prep-item:hover{background:rgba(226,137,74,.06)}
.prep-num{
  flex:0 0 auto;padding-top:3px;
  font-size:14px;font-weight:600;color:var(--accent);
  font-variant-numeric:tabular-nums;letter-spacing:.04em;
}
.prep-item h3{font-size:16.5px;margin-bottom:6px}
.prep-item p{font-size:14.5px;line-height:1.78;color:var(--ink-600)}

/* ---------- steps ---------- */
.steps{display:grid;gap:20px;margin-top:34px}
@media(min-width:640px){.steps{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.steps{grid-template-columns:repeat(4,1fr)}}
.step{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:30px 22px 26px;
  box-shadow:var(--shadow-card);
  transition:transform .2s,box-shadow .2s,border-color .2s;
}
.step::before{
  content:'';position:absolute;left:22px;top:-1px;
  width:38px;height:3px;border-radius:0 0 3px 3px;background:var(--accent);
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);border-color:rgba(30,107,84,.3)}
.step-num{
  font-size:32px;font-weight:600;line-height:1;letter-spacing:-.02em;
  color:var(--primary);font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.step h3{margin-bottom:8px;font-size:17.5px}
.step p{font-size:14.5px;line-height:1.78;color:var(--ink-600)}

/* ---------- platform cards ---------- */
.platform-grid{display:grid;gap:24px;margin-top:34px}
@media(min-width:768px){.platform-grid{grid-template-columns:1fr 1fr}}
.platform-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:transform .2s,box-shadow .2s,border-color .2s;
}
.platform-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);border-color:rgba(30,107,84,.3)}
.platform-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg)}
.platform-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.platform-card:hover .platform-media img{transform:scale(1.03)}
.platform-body{display:flex;flex-direction:column;gap:10px;padding:22px 24px 26px}
.platform-body h3{font-size:18px;transition:color .18s}
.platform-card:hover .platform-body h3{color:var(--primary)}
.platform-body p{font-size:14.5px;line-height:1.8;color:var(--ink-600)}
.platform-foot{
  margin-top:6px;display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-600);
}
.platform-foot svg{width:15px;height:15px;stroke-width:1.75;color:var(--primary)}

.fade-img{opacity:0;transition:opacity .55s ease;background:var(--bg)}
.fade-img.is-loaded{opacity:1}

/* ---------- faq ---------- */
.faq-grid{display:grid;gap:30px}
@media(min-width:1024px){.faq-grid{grid-template-columns:4fr 8fr;gap:56px;align-items:start}}
.faq-aside h2{max-width:13ch}
.faq-aside p{margin-top:14px;color:var(--ink-600);font-size:15px;line-height:1.85}
.faq-contact{
  margin-top:24px;padding:20px 20px 22px;
  background:var(--accent-soft);
  border-radius:var(--radius-card);
}
.faq-contact h3{font-size:15.5px;margin-bottom:8px}
.faq-contact p{font-size:14px;color:var(--ink-600);line-height:1.75;margin-bottom:14px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-h{margin:0;font-size:inherit;font-weight:inherit}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:20px 0;background:none;border:0;text-align:left;
  font-size:17px;font-weight:600;line-height:1.55;color:var(--ink-900);
  transition:color .18s;
}
.faq-q:hover{color:var(--primary)}
.faq-sign{position:relative;flex:0 0 auto;width:16px;height:16px;margin-top:6px}
.faq-sign::before,.faq-sign::after{content:'';position:absolute;background:var(--primary);border-radius:2px}
.faq-sign::before{left:0;top:7px;width:16px;height:2px}
.faq-sign::after{left:7px;top:0;width:2px;height:16px;transition:transform .25s ease,opacity .25s ease}
.faq-item.open .faq-sign::after{transform:scaleY(0);opacity:0}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease}
.faq-item.open .faq-a{grid-template-rows:1fr}
.faq-a > div{overflow:hidden}
.faq-a p{
  max-width:68ch;padding-bottom:22px;
  font-size:15px;line-height:1.8;color:var(--ink-600);
}

/* ---------- cross links ---------- */
.cross-grid{display:grid;gap:20px;margin-top:34px}
@media(min-width:768px){.cross-grid{grid-template-columns:repeat(3,1fr)}}
.cross-card{
  display:flex;flex-direction:column;gap:10px;
  padding:26px 24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:transform .2s,box-shadow .2s,border-color .2s;
}
.cross-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);border-color:rgba(30,107,84,.3)}
.cross-card h3{font-size:17.5px;transition:color .18s}
.cross-card:hover h3{color:var(--primary)}
.cross-card p{font-size:14.5px;line-height:1.78;color:var(--ink-600)}
.cross-more{
  margin-top:6px;display:inline-flex;align-items:center;gap:6px;
  font-size:13.5px;font-weight:500;color:var(--primary);
}
.cross-more svg{width:15px;height:15px;stroke-width:1.75;transition:transform .2s}
.cross-card:hover .cross-more svg{transform:translateX(3px)}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--primary-700);color:#fff;
  border-radius:var(--radius-img);
  padding:38px 26px;
}
.cta-band::after{
  content:'';position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:34px 34px;
}
.cta-inner{position:relative;z-index:1;display:grid;gap:26px;align-items:center}
@media(min-width:900px){.cta-inner{grid-template-columns:1.5fr 1fr;gap:48px}}
.cta-inner h2{color:#fff;max-width:20ch}
.cta-inner p{margin-top:14px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.82);max-width:52ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media(min-width:900px){
  .cta-band{padding:56px 48px}
  .cta-actions{justify-content:flex-end}
}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-900);color:#fff;margin-top:8px}
.footer-top{display:grid;gap:32px;padding:56px 0 40px}
@media(max-width:767px){
  .footer-top{grid-template-columns:1fr 1fr}
  .footer-top > div:first-child{grid-column:1 / -1}
}
@media(min-width:1024px){
  .footer-top{grid-template-columns:1.5fr 1fr 1fr 1fr 1.2fr;gap:32px;padding:64px 0 48px}
}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:600;margin-bottom:14px}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;background:rgba(255,255,255,.12);color:#fff}
.footer-brand .brand-mark svg{width:19px;height:19px;stroke-width:1.75}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:36ch}
.footer-col h3{font-size:14px;font-weight:600;letter-spacing:.04em;color:#fff;margin-bottom:16px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68);transition:color .18s}
.footer-col a:hover{color:#fff}
.footer-contact li{display:flex;gap:9px;font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.68)}
.footer-contact svg{width:16px;height:16px;flex:0 0 auto;margin-top:4px;stroke-width:1.75;color:rgba(255,255,255,.5)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px 20px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.58);
}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:16px}
.footer-bottom a{color:rgba(255,255,255,.58);transition:color .18s}
.footer-bottom a:hover{color:#fff}

/* roulang page: category3 */
:root{
    --primary:#1E6B54;
    --primary-700:#14503F;
    --accent:#E2894A;
    --accent-ink:#A85C2A;
    --accent-soft:#FDF1E6;
    --ink-900:#14201C;
    --ink-600:#4A5A54;
    --line:#D9E0DB;
    --bg:#F6F4EF;
    --surface:#FFFFFF;
    --focus:rgba(30,107,84,.35);
    --danger:#B4552E;
    --radius-card:14px;
    --radius-btn:10px;
    --radius-img:16px;
    --shadow-card:0 1px 2px rgba(20,32,28,.06), 0 8px 24px -12px rgba(20,32,28,.14);
    --shadow-hover:0 4px 8px rgba(20,32,28,.08), 0 16px 32px -16px rgba(20,32,28,.18);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:16px;
    line-height:1.85;
    color:var(--ink-900);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button,input{font:inherit;color:inherit;}
  ul{list-style:none;margin:0;padding:0;}
  h1,h2,h3,h4,p{margin:0;}
  a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--focus);outline-offset:2px;border-radius:6px;}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
  @media (min-width:768px){.container{padding:0 32px;}}
  @media (min-width:1280px){.container{padding:0 48px;}}

  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:var(--surface);
    border-bottom:1px solid transparent;
    transition:box-shadow .25s ease,border-color .25s ease;
  }
  .site-header.is-scrolled{
    border-bottom-color:var(--line);
    box-shadow:0 6px 18px -14px rgba(20,32,28,.45);
  }
  .header-inner{
    display:grid;
    grid-template-columns:1fr auto;
    grid-template-areas:
      "brand toggle"
      "search search"
      "nav nav";
    align-items:center;
    gap:12px 16px;
    padding-top:12px;
    padding-bottom:12px;
    transition:padding .25s ease;
  }
  .brand{grid-area:brand;display:inline-flex;align-items:center;gap:10px;font-weight:600;font-size:17px;letter-spacing:.01em;}
  .brand .brand-mark{
    width:34px;height:34px;border-radius:10px;
    background:var(--primary);color:#fff;
    display:inline-flex;align-items:center;justify-content:center;
    flex:none;
  }
  .brand .brand-mark svg{width:19px;height:19px;stroke-width:1.75;}
  .nav-toggle{
    grid-area:toggle;
    display:inline-flex;flex-direction:column;justify-content:center;gap:4px;
    width:44px;height:44px;padding:0 11px;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-btn);
    cursor:pointer;transition:border-color .2s ease,background .2s ease;
  }
  .nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--ink-900);}
  .nav-toggle:hover{border-color:var(--primary);background:var(--accent-soft);}

  .nav-search{
    grid-area:search;
    display:flex;align-items:center;gap:8px;
    height:44px;
    padding:0 6px 0 14px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:999px;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px var(--focus);}
  .nav-search svg{width:18px;height:18px;flex:none;stroke:var(--ink-600);stroke-width:1.75;fill:none;stroke-linecap:round;stroke-linejoin:round;}
  .nav-search input{
    flex:1;min-width:0;height:100%;border:none;outline:none;background:transparent;
    font-size:14px;color:var(--ink-900);
  }
  .nav-search input::placeholder{color:#8C9A94;}
  .search-btn{
    flex:none;height:32px;padding:0 16px;border:none;border-radius:999px;
    background:var(--primary);color:#fff;font-size:13.5px;font-weight:500;
    cursor:pointer;transition:background .2s ease;
  }
  .search-btn:hover{background:var(--primary-700);}

  .nav-links{
    grid-area:nav;
    display:none;
    grid-template-columns:1fr 1fr;
    gap:8px;
    padding-top:6px;
  }
  .nav-links.open{display:grid;}
  .nav-pill{
    display:inline-flex;align-items:center;justify-content:center;
    min-height:44px;padding:0 14px;
    font-size:14px;color:var(--ink-600);
    border:1px solid transparent;border-radius:999px;
    transition:background .2s ease,color .2s ease,border-color .2s ease;
    white-space:nowrap;
  }
  .nav-pill:hover{background:var(--accent-soft);color:var(--primary);}
  .nav-pill.active{background:var(--primary);color:#fff;}
  .nav-cta{
    display:inline-flex;align-items:center;justify-content:center;
    min-height:44px;padding:0 18px;
    background:var(--accent-soft);color:var(--accent-ink);
    font-size:14px;font-weight:500;
    border-radius:999px;
    transition:background .2s ease,color .2s ease;
  }
  .nav-cta:hover{background:var(--accent);color:#fff;}

  @media (min-width:1024px){
    .header-inner{
      grid-template-columns:auto minmax(260px,520px) 1fr;
      grid-template-areas:"brand search nav";
      gap:24px;
      min-height:72px;
      padding-top:0;
      padding-bottom:0;
    }
    .site-header.is-scrolled .header-inner{min-height:60px;}
    .nav-toggle{display:none;}
    .nav-links{
      display:flex;
      justify-content:flex-end;
      align-items:center;
      gap:4px;
      padding-top:0;
    }
  }

  /* ---------- 通用区块 ---------- */
  .section{padding:56px 0;}
  @media (min-width:768px){.section{padding:88px 0;}}
  @media (min-width:1280px){.section{padding:120px 0;}}
  .section-head{max-width:760px;margin-bottom:32px;}
  .section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3;font-weight:600;letter-spacing:-.01em;margin-bottom:12px;}
  .section-head p{font-size:16px;line-height:1.85;color:var(--ink-600);max-width:72ch;}
  .divider{height:1px;background:var(--line);border:0;margin:0;}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:12px 24px;
    border-radius:var(--radius-btn);border:1px solid transparent;
    font-size:15px;font-weight:500;cursor:pointer;
    transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  }
  .btn-primary{background:var(--primary);color:#fff;}
  .btn-primary:hover{background:var(--primary-700);transform:translateY(-1px);box-shadow:var(--shadow-hover);}
  .btn-primary:active{transform:translateY(0);box-shadow:none;}
  .btn-ghost{background:var(--surface);border-color:var(--line);color:var(--ink-900);}
  .btn-ghost:hover{background:var(--accent-soft);border-color:var(--primary);color:var(--primary);}
  .btn:disabled,.btn.is-disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none;}

  .link-arrow{
    display:inline-flex;align-items:center;gap:6px;
    font-size:15px;color:var(--primary);font-weight:500;
    text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;
    transition:color .2s ease,text-decoration-thickness .2s ease;
  }
  .link-arrow:hover{color:var(--accent-ink);text-decoration-thickness:2px;}

  .badge{
    display:inline-block;
    padding:5px 12px;
    background:var(--accent-soft);color:var(--accent-ink);
    font-size:12.5px;font-weight:500;line-height:1.4;
    border-radius:999px;
  }

  /* ---------- 分类 Hero ---------- */
  .cat-hero{
    position:relative;
    background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);
    border-bottom:1px solid var(--line);
    padding:32px 0 44px;
    overflow:hidden;
  }
  .cat-hero::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:
      linear-gradient(rgba(30,107,84,.07) 1px,transparent 1px),
      linear-gradient(90deg,rgba(30,107,84,.07) 1px,transparent 1px);
    background-size:36px 36px;
    -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 72%);
    mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 72%);
  }
  .cat-hero .container{position:relative;z-index:1;}
  .crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-600);margin-bottom:18px;}
  .crumb a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px;}
  .crumb .crumb-current{color:var(--accent-ink);font-weight:500;}
  .cat-hero h1{
    font-size:clamp(30px,4.6vw,52px);
    line-height:1.18;font-weight:700;letter-spacing:-.015em;
    margin-bottom:14px;
  }
  .cat-lead{font-size:16px;line-height:1.8;color:var(--ink-600);max-width:72ch;}
  .cat-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
  .cat-tags li{
    padding:6px 14px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:999px;
    font-size:13px;color:var(--ink-600);
  }
  .cat-actions{display:flex;flex-wrap:wrap;align-items:center;gap:20px;margin-top:26px;}

  /* ---------- 准备清单 ---------- */
  .split{display:grid;grid-template-columns:1fr;gap:28px;}
  @media (min-width:1024px){
    .split{grid-template-columns:280px minmax(0,1fr);gap:56px;}
  }
  .split-aside h2{font-size:clamp(22px,2.2vw,28px);line-height:1.35;font-weight:600;margin-bottom:12px;}
  .split-aside p{font-size:14.5px;line-height:1.85;color:var(--ink-600);}
  .pre-list{display:grid;grid-template-columns:1fr;gap:0;}
  @media (min-width:768px){
    .pre-list{grid-template-columns:1fr 1fr;column-gap:44px;}
  }
  .pre-item{
    display:flex;gap:16px;
    padding:22px 14px;
    border-top:1px solid var(--line);
    transition:background .2s ease;
  }
  .pre-item:hover{background:rgba(226,137,74,.10);}
  .pre-num{
    flex:none;
    font-size:15px;font-weight:600;
    color:var(--accent-ink);
    font-variant-numeric:tabular-nums;
    letter-spacing:.04em;
    padding-top:4px;
  }
  .pre-item h3{font-size:17px;line-height:1.45;font-weight:600;margin-bottom:6px;}
  .pre-item p{font-size:14.5px;line-height:1.8;color:var(--ink-600);}

  /* ---------- 流程步骤 ---------- */
  .steps{display:grid;grid-template-columns:1fr;gap:20px;}
  @media (min-width:640px){.steps{grid-template-columns:1fr 1fr;}}
  @media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);}}
  .step{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:22px 20px;
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .step:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(30,107,84,.3);}
  .step-index{
    display:inline-block;
    font-size:13px;font-weight:600;letter-spacing:.08em;
    color:var(--accent-ink);
    font-variant-numeric:tabular-nums;
  }
  .step h3{font-size:17px;line-height:1.45;font-weight:600;margin:10px 0 8px;}
  .step p{font-size:14.5px;line-height:1.8;color:var(--ink-600);}

  /* ---------- 场景卡片 ---------- */
  .scene-grid{display:grid;grid-template-columns:1fr;gap:24px;}
  @media (min-width:640px){.scene-grid{grid-template-columns:1fr 1fr;}}
  .scene-card{
    display:flex;flex-direction:column;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    overflow:hidden;
    box-shadow:var(--shadow-card);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(30,107,84,.3);}
  .scene-media{aspect-ratio:16/9;overflow:hidden;background:var(--bg);}
  .scene-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
  .scene-card:hover .scene-media img{transform:scale(1.03);}
  .scene-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
  .scene-body h3{font-size:18px;line-height:1.45;font-weight:600;transition:color .2s ease;}
  .scene-card:hover .scene-body h3{color:var(--primary);}
  .scene-body p{font-size:14.5px;line-height:1.8;color:var(--ink-600);}
  .scene-meta{
    margin-top:auto;
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    padding-top:14px;border-top:1px solid var(--line);
    font-size:13px;color:var(--ink-600);
  }
  .scene-meta .more{color:var(--primary);font-weight:500;}

  /* ---------- 交叉分类 ---------- */
  .cross-grid{display:grid;grid-template-columns:1fr;gap:20px;}
  @media (min-width:768px){.cross-grid{grid-template-columns:repeat(3,1fr);}}
  .cross-card{
    display:flex;flex-direction:column;gap:10px;
    padding:26px 22px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .cross-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(30,107,84,.35);}
  .cross-card h3{font-size:18px;font-weight:600;line-height:1.45;}
  .cross-card p{font-size:14.5px;line-height:1.8;color:var(--ink-600);}
  .cross-card .more{font-size:14px;color:var(--primary);font-weight:500;margin-top:4px;}

  /* ---------- FAQ ---------- */
  .faq-wrap{display:grid;grid-template-columns:1fr;gap:32px;}
  @media (min-width:1024px){.faq-wrap{grid-template-columns:minmax(240px,320px) minmax(0,1fr);gap:56px;}}
  .faq-aside h2{font-size:clamp(22px,2.2vw,30px);line-height:1.35;font-weight:600;margin-bottom:12px;}
  .faq-aside p{font-size:14.5px;line-height:1.85;color:var(--ink-600);margin-bottom:20px;}
  .faq-list{border-top:1px solid var(--line);}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 4px;background:transparent;border:none;text-align:left;cursor:pointer;
    font-size:18px;font-weight:600;line-height:1.5;color:var(--ink-900);
    transition:color .2s ease;
  }
  .faq-q:hover{color:var(--primary);}
  .faq-plus{position:relative;flex:none;width:18px;height:18px;}
  .faq-plus::before,.faq-plus::after{
    content:"";position:absolute;left:50%;top:50%;background:var(--primary);
    transform:translate(-50%,-50%);
  }
  .faq-plus::before{width:14px;height:2px;border-radius:2px;}
  .faq-plus::after{width:2px;height:14px;border-radius:2px;transition:opacity .25s ease,transform .25s ease;}
  .faq-item.open .faq-plus::after{opacity:0;transform:translate(-50%,-50%) rotate(90deg);}
  .faq-a{
    max-height:0;overflow:hidden;
    transition:max-height .32s ease;
  }
  .faq-item.open .faq-a{max-height:340px;}
  .faq-a p{
    padding:0 40px 22px 4px;
    font-size:15px;line-height:1.8;color:var(--ink-600);max-width:68ch;
  }

  /* ---------- CTA 带 ---------- */
  .cta-section{padding:0 0 56px;}
  @media (min-width:768px){.cta-section{padding:0 0 88px;}}
  @media (min-width:1280px){.cta-section{padding:0 0 120px;}}
  .cta-band{
    position:relative;
    background:var(--primary);
    color:#fff;
    border-radius:18px;
    padding:32px 24px;
    display:grid;gap:22px;align-items:center;
    overflow:hidden;
  }
  .cta-band::after{
    content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;
    border-radius:50%;background:rgba(255,255,255,.07);pointer-events:none;
  }
  @media (min-width:768px){
    .cta-band{grid-template-columns:minmax(0,1fr) auto;padding:44px 48px;}
  }
  .cta-band h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35;font-weight:600;margin-bottom:10px;}
  .cta-band p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.86);max-width:60ch;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
  .cta-band .btn-primary{background:#fff;color:var(--primary-700);}
  .cta-band .btn-primary:hover{background:var(--accent-soft);color:var(--primary-700);}
  .cta-band .btn-ghost{background:transparent;border-color:rgba(255,255,255,.45);color:#fff;}
  .cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);padding:56px 0 20px;}
  .footer-top{display:grid;grid-template-columns:1fr;gap:32px;}
  @media (min-width:640px){.footer-top{grid-template-columns:1fr 1fr;}}
  @media (min-width:1024px){.footer-top{grid-template-columns:1.6fr 1fr 1fr 1fr 1.2fr;gap:28px;}}
  .footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:600;font-size:17px;}
  .footer-brand .brand-mark{
    width:34px;height:34px;border-radius:10px;flex:none;
    background:var(--primary);color:#fff;
    display:inline-flex;align-items:center;justify-content:center;
  }
  .footer-brand .brand-mark svg{width:19px;height:19px;stroke-width:1.75;}
  .footer-desc{margin-top:14px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:34ch;}
  .footer-col h3{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px;}
  .footer-col ul{display:grid;gap:10px;font-size:14px;}
  .footer-col a{color:rgba(255,255,255,.72);transition:color .2s ease;}
  .footer-col a:hover{color:#fff;}
  .footer-contact li{display:flex;gap:8px;align-items:flex-start;line-height:1.7;}
  .footer-contact svg{width:16px;height:16px;flex:none;margin-top:5px;stroke:currentColor;stroke-width:1.75;fill:none;stroke-linecap:round;stroke-linejoin:round;opacity:.82;}
  .footer-bottom{
    display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
    margin-top:36px;padding-top:18px;
    border-top:1px solid rgba(255,255,255,.12);
    font-size:13px;color:rgba(255,255,255,.6);
  }
  .footer-bottom nav{display:flex;flex-wrap:wrap;gap:16px;}
  .footer-bottom a{color:rgba(255,255,255,.6);transition:color .2s ease;}
  .footer-bottom a:hover{color:#fff;}

/* roulang page: category4 */
:root{
  --primary:#1E6B54;
  --primary-700:#14503F;
  --accent:#E2894A;
  --accent-soft:#FDF1E6;
  --ink-900:#14201C;
  --ink-600:#4A5A54;
  --line:#D9E0DB;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --focus:rgba(30,107,84,.35);
  --danger:#B4552E;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:16px;
  --shadow-card:0 1px 2px rgba(20,32,28,.06),0 8px 24px -12px rgba(20,32,28,.14);
  --shadow-hover:0 4px 8px rgba(20,32,28,.06),0 16px 32px -16px rgba(20,32,28,.2);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,dl,dd,dt{margin:0}
ul,ol{padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;box-shadow:0 0 0 4px var(--focus)}
.container{width:100%;max-width:1200px;margin-inline:auto;padding-inline:20px}
@media(min-width:768px){.container{padding-inline:32px}}
@media(min-width:1280px){.container{padding-inline:48px}}

/* ---------------- header ---------------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 8px 22px -18px rgba(20,32,28,.55)}
.header-inner{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  min-height:72px;padding:10px 0;
  transition:min-height .25s ease;
}
.site-header.is-stuck .header-inner{min-height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;letter-spacing:.2px;color:var(--ink-900)}
.brand-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:10px;background:var(--primary);color:#fff;flex:none}
.brand-mark svg{width:20px;height:20px;stroke-width:1.75}
.menu-toggle{
  order:1;margin-left:auto;display:inline-grid;place-items:center;
  width:44px;height:44px;border-radius:var(--radius-btn);
  border:1px solid var(--line);background:#fff;color:var(--ink-900);
  transition:background .2s,border-color .2s;
}
.menu-toggle:hover{background:var(--accent-soft);border-color:rgba(30,107,84,.32)}
.menu-toggle svg{width:20px;height:20px;stroke-width:1.75}
.nav-search{order:3;flex:1 1 100%}
.search-box{
  display:flex;align-items:center;gap:8px;height:44px;padding:0 6px 0 16px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  transition:border-color .2s,box-shadow .2s;
}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px var(--focus)}
.search-box > svg{width:18px;height:18px;color:var(--ink-600);flex:none;stroke-width:1.75}
.search-box input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px;line-height:1.4}
.search-box input::placeholder{color:#8B9993}
.search-btn{
  height:32px;padding:0 16px;border-radius:999px;background:var(--primary);color:#fff;
  font-size:13px;font-weight:500;transition:background .2s;
}
.search-btn:hover{background:var(--primary-700)}
.nav-links{order:4;flex:1 1 100%;display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.nav-pill{
  display:inline-flex;align-items:center;min-height:40px;padding:0 14px;
  border-radius:999px;font-size:14px;font-weight:500;color:var(--ink-600);
  border:1px solid transparent;transition:color .2s,background .2s,border-color .2s;
}
.nav-pill:hover{color:var(--primary);background:var(--accent-soft)}
.nav-pill.active{color:var(--primary);background:var(--accent-soft);border-color:rgba(30,107,84,.24)}
.nav-cta{
  display:inline-flex;align-items:center;min-height:40px;padding:0 18px;
  border-radius:999px;background:var(--primary);color:#fff;font-size:14px;font-weight:500;
  transition:background .2s,transform .2s;
}
.nav-cta:hover{background:var(--primary-700);transform:translateY(-1px)}
@media(max-width:1023px){
  .nav-links{display:none;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .site-header.menu-open .nav-links{display:grid}
  .nav-pill,.nav-cta{justify-content:center;width:100%}
}
@media(min-width:1024px){
  .header-inner{flex-wrap:nowrap}
  .nav-search{order:2;flex:1 1 auto;max-width:520px;margin-inline:auto}
  .nav-links{order:3;flex:0 0 auto;flex-wrap:nowrap}
  .menu-toggle{display:none}
}

/* ---------------- category hero ---------------- */
.cat-hero{position:relative;overflow:hidden;background:var(--surface);border-bottom:1px solid var(--line);padding:34px 0 46px}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(30,107,84,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(30,107,84,.07) 1px,transparent 1px);
  background-size:28px 28px;
  -webkit-mask-image:linear-gradient(90deg,#000 0%,transparent 72%);
  mask-image:linear-gradient(90deg,#000 0%,transparent 72%);
  pointer-events:none;
}
.cat-hero-grid{position:relative;display:grid;gap:28px;grid-template-columns:1fr}
@media(min-width:1024px){
  .cat-hero-grid{grid-template-columns:minmax(0,2fr) minmax(0,1fr);align-items:end;gap:48px}
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-600);margin-bottom:18px}
.breadcrumb a{transition:color .2s}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:#A9B4AF}
.breadcrumb .current{color:var(--accent);font-weight:500}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;color:var(--accent);letter-spacing:.14em;margin-bottom:12px}
.cat-hero h1{font-size:clamp(27px,3.4vw,40px);line-height:1.24;font-weight:700;letter-spacing:-.2px}
.hero-sub{margin-top:14px;font-size:15.5px;color:var(--ink-600);max-width:56ch}
.hero-stat{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-card);padding:20px 22px}
.hero-stat dl{display:grid;grid-template-columns:auto 1fr;gap:10px 18px;font-size:14px}
.hero-stat dt{color:var(--ink-600)}
.hero-stat dd{font-weight:600;font-variant-numeric:tabular-nums}

/* ---------------- sections ---------------- */
.section{padding:48px 0}
@media(min-width:768px){.section{padding:72px 0}}
@media(min-width:1280px){.section{padding:88px 0}}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;flex-wrap:wrap;gap:16px;align-items:flex-end;justify-content:space-between;margin-bottom:28px}
.section-title{font-size:clamp(23px,2.6vw,32px);line-height:1.3;font-weight:600}
.section-desc{margin-top:10px;font-size:15px;color:var(--ink-600);max-width:72ch}
.section-head .head-link{font-size:14px;font-weight:500;color:var(--primary);white-space:nowrap}

/* ---------------- buttons / badges ---------------- */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 24px;border-radius:var(--radius-btn);
  background:var(--primary);color:#fff;font-size:15px;font-weight:600;
  box-shadow:var(--shadow-card);
  transition:background .2s,transform .2s,box-shadow .2s;
}
.btn-primary:hover{background:var(--primary-700);transform:translateY(-1px);box-shadow:var(--shadow-hover)}
.btn-primary:active{transform:none;box-shadow:var(--shadow-card)}
.btn-secondary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 22px;border-radius:var(--radius-btn);
  background:#fff;border:1px solid var(--line);color:var(--ink-900);
  font-size:15px;font-weight:500;
  transition:background .2s,border-color .2s,color .2s;
}
.btn-secondary:hover{background:var(--accent-soft);border-color:var(--primary);color:var(--primary)}
.link-arrow{color:var(--primary);font-size:14px;font-weight:500;border-bottom:1px solid rgba(30,107,84,.35);padding-bottom:1px;transition:color .2s,border-color .2s}
.link-arrow:hover{color:var(--accent);border-color:var(--accent)}
.badge{
  display:inline-flex;align-items:center;height:25px;padding:0 11px;border-radius:999px;
  background:var(--accent-soft);color:var(--accent);font-size:12.5px;font-weight:500;white-space:nowrap;
}
.badge-soft{background:rgba(30,107,84,.1);color:var(--primary)}

/* ---------------- highlight ---------------- */
.highlight-card{
  display:grid;grid-template-columns:1fr;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-img);box-shadow:var(--shadow-card);
}
@media(min-width:1024px){.highlight-card{grid-template-columns:minmax(0,1.05fr) minmax(0,1fr)}}
.highlight-media{position:relative;aspect-ratio:16/9;background:var(--bg);overflow:hidden}
.highlight-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.highlight-card:hover .highlight-media img{transform:scale(1.03)}
.highlight-body{display:flex;flex-direction:column;gap:14px;padding:26px 24px 30px}
@media(min-width:768px){.highlight-body{padding:32px 34px 36px}}
.highlight-body h3{font-size:20px;font-weight:600;line-height:1.45}
.highlight-body p{font-size:15px;color:var(--ink-600);max-width:62ch}
.mini-list{display:grid;gap:9px;font-size:14.5px;color:var(--ink-600)}
.mini-list li{display:flex;gap:10px;align-items:flex-start}
.mini-list li::before{content:"";width:6px;height:6px;border-radius:999px;background:var(--accent);margin-top:10px;flex:none}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--ink-600);font-variant-numeric:tabular-nums}

/* ---------------- version list ---------------- */
.version-list{border-top:1px solid var(--line)}
.version-item{
  display:grid;grid-template-columns:1fr;gap:16px;
  padding:26px 0;border-bottom:1px solid var(--line);
  transition:background .2s;
}
@media(min-width:768px){.version-item{grid-template-columns:140px minmax(0,1fr);gap:32px;padding:30px 4px}}
.version-item:hover{background:rgba(253,241,230,.55)}
.version-mark{display:flex;flex-direction:column;gap:5px;padding-left:14px;border-left:3px solid var(--accent)}
.version-mark .v-no{font-size:20px;font-weight:600;line-height:1.2;font-variant-numeric:tabular-nums}
.version-mark .v-date{font-size:13px;color:var(--ink-600);font-variant-numeric:tabular-nums}
.version-body h3{font-size:19px;font-weight:600;line-height:1.45}
.version-body p{margin-top:10px;font-size:15px;color:var(--ink-600);max-width:72ch}
.version-foot{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:14px;font-size:13px;color:var(--ink-600)}
.version-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}

/* ---------------- type grid ---------------- */
.type-grid{
  display:grid;gap:1px;grid-template-columns:1fr;
  background:var(--line);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;
}
@media(min-width:640px){.type-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.type-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
.type-item{background:var(--surface);padding:26px 22px;transition:background .2s}
.type-item:hover{background:var(--accent-soft)}
.type-num{font-size:12.5px;font-weight:600;color:var(--accent);letter-spacing:.14em;font-variant-numeric:tabular-nums}
.type-item h3{margin-top:12px;font-size:18px;font-weight:600}
.type-item p{margin-top:8px;font-size:14.5px;color:var(--ink-600);line-height:1.78}

/* ---------------- steps ---------------- */
.steps{display:grid;gap:20px;grid-template-columns:1fr}
@media(min-width:768px){.steps{grid-template-columns:repeat(3,minmax(0,1fr))}}
.step{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-card);
  transition:transform .2s,box-shadow .2s,border-color .2s;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(30,107,84,.3)}
.step-idx{
  display:grid;place-items:center;width:34px;height:34px;border-radius:999px;
  background:var(--accent-soft);color:var(--accent);font-size:14px;font-weight:600;
}
.step h3{margin-top:16px;font-size:18px;font-weight:600}
.step p{margin-top:8px;font-size:14.5px;color:var(--ink-600)}

/* ---------------- faq ---------------- */
.faq-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media(min-width:1024px){.faq-grid{grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:52px}}
.faq-aside p{margin-top:10px;font-size:15px;color:var(--ink-600);max-width:40ch}
.faq-aside .aside-link{display:inline-flex;align-items:center;gap:8px;margin-top:18px;font-size:14px;font-weight:500;color:var(--primary)}
.faq-aside .aside-link:hover{color:var(--accent)}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  margin-bottom:12px;overflow:hidden;transition:border-color .2s,box-shadow .2s;
}
.faq-item:hover{border-color:rgba(30,107,84,.3)}
.faq-item.open{border-color:rgba(30,107,84,.4);box-shadow:var(--shadow-card)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:17px;font-weight:600;text-align:left;color:var(--ink-900);
  transition:color .2s;
}
.faq-q:hover{color:var(--primary)}
.faq-icon{position:relative;width:16px;height:16px;flex:none}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary);border-radius:2px}
.faq-icon::before{top:7px;left:0;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px;transition:transform .2s,opacity .2s}
.faq-item.open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{display:none;padding:0 20px 20px;font-size:15px;color:var(--ink-600);max-width:68ch}
.faq-item.open .faq-a{display:block}

/* ---------------- cross links ---------------- */
.cross-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media(min-width:640px){.cross-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.cross-card{
  display:block;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:24px 22px;box-shadow:var(--shadow-card);
  transition:transform .2s,box-shadow .2s,border-color .2s;
}
.cross-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(30,107,84,.35)}
.cross-card h3{font-size:17px;font-weight:600;transition:color .2s}
.cross-card:hover h3{color:var(--primary)}
.cross-card p{margin-top:8px;font-size:14px;color:var(--ink-600)}
.cross-card .cross-more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:13.5px;font-weight:500;color:var(--accent)}

/* ---------------- cta band ---------------- */
.cta-wrap{padding:56px 0}
@media(min-width:768px){.cta-wrap{padding:72px 0}}
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-img);
  padding:38px 24px;color:#fff;
  background-image:linear-gradient(96deg,rgba(20,80,63,.95),rgba(20,80,63,.8)),url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
}
@media(min-width:768px){.cta-band{padding:56px 52px}}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);line-height:1.32;font-weight:600}
.cta-band p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.86);max-width:62ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:24px}
.btn-light{
  display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:12px 24px;
  border-radius:var(--radius-btn);background:#fff;color:var(--primary);font-weight:600;font-size:15px;
  transition:transform .2s,box-shadow .2s;
}
.btn-light:hover{transform:translateY(-1px);box-shadow:0 12px 26px -14px rgba(0,0,0,.6)}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:12px 22px;
  border-radius:var(--radius-btn);border:1px solid rgba(255,255,255,.55);color:#fff;font-weight:500;font-size:15px;
  transition:background .2s,border-color .2s;
}
.btn-line:hover{background:rgba(255,255,255,.14);border-color:#fff}

/* ---------------- footer ---------------- */
.site-footer{position:relative;background:var(--ink-900);color:rgba(255,255,255,.86);padding:56px 0 26px}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;background:rgba(255,255,255,.12);
}
.footer-top{display:grid;gap:32px;grid-template-columns:1fr;padding-bottom:36px}
@media(min-width:520px){.footer-top{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.footer-top{grid-template-columns:1.5fr repeat(3,1fr) 1.3fr;gap:30px}}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700}
.footer-brand .brand-mark{background:rgba(255,255,255,.12)}
.footer-desc{margin-top:14px;font-size:14px;color:rgba(255,255,255,.7);line-height:1.85;max-width:36ch}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s}
.footer-col a:hover{color:var(--accent)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:rgba(255,255,255,.72)}
.footer-contact svg{width:16px;height:16px;margin-top:6px;flex:none;stroke-width:1.75;color:var(--accent)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.12);padding-top:20px;
  font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:16px}
.footer-bottom a{transition:color .2s}
.footer-bottom a:hover{color:var(--accent)}