/* roulang page: index */
:root{
  --c-ink:#0B2E2A;
  --c-ink-2:#123D36;
  --c-accent:#C8F24E;
  --c-accent-2:#FF6A3D;
  --c-mint:#7FD8C8;
  --c-bg:#F7F8F4;
  --c-surface:#FFFFFF;
  --c-line:#E3E8E2;
  --c-text:#10201C;
  --c-muted:#5A6B64;
  --c-weak:#8A9993;
  --c-danger:#D64545;
  --r-card:16px;
  --r-btn:999px;
  --r-input:12px;
  --sh-1:0 1px 2px rgba(11,46,42,.06);
  --sh-2:0 10px 30px rgba(11,46,42,.10);
  --container:1200px;
  --gap:24px;
  --sec:80px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-ink-2);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-accent-2);text-decoration:underline;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:15px;}
h1,h2,h3,h4{letter-spacing:-0.02em;margin:0;color:var(--c-ink);font-weight:800;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:var(--sec) 0;}
.section-alt{background:var(--c-surface);}
.sec-head{max-width:760px;margin-bottom:40px;}
.sec-kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--c-ink-2);background:rgba(127,216,200,.28);border-radius:999px;padding:5px 14px;margin-bottom:14px;}
.sec-head h2{font-size:30px;line-height:1.3;}
.sec-head p{margin-top:14px;color:var(--c-muted);font-size:16px;}
.lead{font-size:17px;color:var(--c-muted);}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);border:1px solid transparent;font-weight:700;font-size:15px;padding:13px 26px;transition:transform .18s ease,background .18s ease,color .18s ease,box-shadow .18s ease,border-color .18s ease;text-decoration:none!important;line-height:1.2;}
.btn-primary{background:var(--c-accent);color:var(--c-ink);box-shadow:var(--sh-1);}
.btn-primary:hover{background:#B6E33F;color:var(--c-ink);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-ghost{background:transparent;border-color:var(--c-ink);color:var(--c-ink);}
.btn-ghost:hover{background:rgba(127,216,200,.22);color:var(--c-ink);transform:translateY(-2px);}
.btn-light{background:transparent;border-color:rgba(255,255,255,.4);color:#fff;}
.btn-light:hover{background:rgba(200,242,78,.16);border-color:var(--c-accent);color:#fff;transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.4;cursor:not-allowed;transform:none;}
.link-arrow{font-weight:700;font-size:14px;display:inline-flex;align-items:center;gap:6px;color:var(--c-ink-2);}
.link-arrow:hover{color:var(--c-accent-2);}
.tag{display:inline-flex;align-items:center;border-radius:999px;padding:4px 12px;font-size:12px;font-weight:700;background:rgba(127,216,200,.24);color:var(--c-ink-2);}
.tag-lime{background:var(--c-accent);color:var(--c-ink);}
.tag-orange{background:rgba(255,106,61,.14);color:#B8431D;}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:90;background:var(--c-surface);border-bottom:1px solid var(--c-line);transition:box-shadow .25s ease;}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.nav-wrap{display:flex;align-items:center;gap:24px;height:70px;}
.brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;color:var(--c-ink);text-decoration:none!important;letter-spacing:-0.02em;flex:0 0 auto;}
.brand:hover{color:var(--c-ink);}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--c-ink);display:flex;align-items:center;justify-content:center;flex:0 0 auto;}
.brand-mark svg{width:20px;height:20px;display:block;}
.nav-menu{display:flex;align-items:center;gap:6px;margin-left:12px;flex:1 1 auto;}
.nav-menu a{position:relative;padding:8px 14px;font-size:15px;font-weight:600;color:var(--c-ink-2);border-radius:10px;text-decoration:none!important;white-space:nowrap;}
.nav-menu a:hover{color:var(--c-ink);background:rgba(127,216,200,.18);}
.nav-menu a.is-active{color:var(--c-ink);}
.nav-menu a.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:-2px;height:3px;border-radius:3px;background:var(--c-accent);}
.nav-right{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.search-box{position:relative;display:flex;align-items:center;}
.search-box input{width:200px;height:40px;border-radius:999px;border:1px solid var(--c-line);background:var(--c-bg);padding:0 42px 0 16px;font-size:14px;color:var(--c-text);transition:background .2s ease,border-color .2s ease,box-shadow .2s ease,width .2s ease;}
.search-box input::placeholder{color:var(--c-weak);}
.search-box input:focus{outline:none;background:var(--c-surface);border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(200,242,78,.35);width:230px;}
.search-box button{position:absolute;right:6px;width:30px;height:30px;border-radius:50%;border:0;background:transparent;display:flex;align-items:center;justify-content:center;color:var(--c-muted);}
.search-box button:hover{background:rgba(127,216,200,.25);color:var(--c-ink);}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--c-line);background:var(--c-surface);align-items:center;justify-content:center;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.drawer{position:fixed;inset:70px 0 0 0;background:var(--c-surface);z-index:88;padding:24px;display:none;flex-direction:column;gap:8px;overflow-y:auto;}
.drawer.is-open{display:flex;}
.drawer a{padding:14px 16px;border-radius:12px;font-size:16px;font-weight:700;color:var(--c-ink);border:1px solid var(--c-line);text-decoration:none!important;}
.drawer a.is-active{background:rgba(200,242,78,.35);border-color:var(--c-accent);}
.drawer .drawer-cta{margin-top:auto;}

/* Hero */
.hero{position:relative;overflow:hidden;background:var(--c-ink);color:#fff;padding:76px 0 72px;}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.34;}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(120deg,rgba(11,46,42,.94) 0%,rgba(11,46,42,.78) 46%,rgba(11,46,42,.55) 100%);}
.hero-grid{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.hero h1{color:#fff;font-size:44px;line-height:1.2;font-weight:800;}
.hero-sub{margin-top:20px;font-size:18px;color:rgba(255,255,255,.82);max-width:520px;}
.hero-points{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px 22px;}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.86);}
.hero-points svg{width:16px;height:16px;flex:0 0 auto;}
.hero-actions{margin-top:32px;display:flex;flex-wrap:wrap;gap:14px;}
.hero-badges{margin-top:44px;display:grid;grid-template-columns:repeat(4,1fr);gap:18px;border-top:1px solid rgba(255,255,255,.18);padding-top:26px;}
.hero-badges b{display:block;font-size:24px;color:var(--c-accent);font-weight:800;letter-spacing:-0.02em;}
.hero-badges span{font-size:13px;color:rgba(255,255,255,.7);}
.hero-card{background:var(--c-surface);border-radius:var(--r-card);box-shadow:var(--sh-2);padding:26px;color:var(--c-text);}
.hero-card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.hero-card-head h2{font-size:17px;font-weight:800;}
.hero-card-head span{font-size:12px;font-weight:700;color:var(--c-ink-2);background:rgba(127,216,200,.28);border-radius:999px;padding:4px 10px;}
.step-row{display:flex;align-items:center;gap:12px;padding:12px;border:1px solid var(--c-line);border-radius:12px;margin-bottom:10px;transition:border-color .2s ease,background .2s ease;}
.step-row:hover{border-color:var(--c-accent);background:rgba(200,242,78,.08);}
.step-num{width:26px;height:26px;border-radius:50%;background:var(--c-ink);color:#fff;font-size:12px;font-weight:800;display:flex;align-items:center;justify-content:center;flex:0 0 auto;}
.step-row.done .step-num{background:var(--c-accent);color:var(--c-ink);}
.step-row p{font-size:14px;font-weight:700;color:var(--c-ink);}
.step-row small{display:block;font-size:12px;font-weight:500;color:var(--c-weak);}
.step-state{margin-left:auto;font-size:12px;font-weight:700;color:var(--c-ink-2);}
.progress-block{margin-top:18px;padding-top:16px;border-top:1px dashed var(--c-line);}
.progress-label{display:flex;justify-content:space-between;font-size:13px;color:var(--c-muted);margin-bottom:8px;}
.progress-track{height:8px;border-radius:999px;background:var(--c-bg);overflow:hidden;}
.progress-track i{display:block;height:100%;width:76%;border-radius:999px;background:linear-gradient(90deg,var(--c-mint),var(--c-accent));}
.mini-chart{display:flex;align-items:flex-end;gap:8px;height:64px;margin-top:18px;}
.mini-chart i{flex:1;border-radius:6px 6px 2px 2px;background:rgba(127,216,200,.45);}
.mini-chart i:nth-child(2){height:38%;}
.mini-chart i:nth-child(3){height:62%;}
.mini-chart i:nth-child(4){height:48%;}
.mini-chart i:nth-child(5){height:80%;background:var(--c-accent);}
.mini-chart i:nth-child(6){height:56%;}
.mini-chart i:nth-child(1){height:30%;}

/* 功能卡 */
.feature-layout{display:grid;grid-template-columns:1.05fr 1fr;gap:24px;}
.feature-big{background:var(--c-ink);color:#fff;border-radius:var(--r-card);padding:34px;display:flex;flex-direction:column;position:relative;overflow:hidden;}
.feature-big::after{content:"";position:absolute;right:-70px;bottom:-90px;width:260px;height:260px;border-radius:50%;border:26px solid rgba(200,242,78,.14);}
.feature-big h3{color:#fff;font-size:24px;line-height:1.35;}
.feature-big p{margin-top:14px;color:rgba(255,255,255,.76);font-size:15px;max-width:420px;}
.feature-big ul{margin-top:22px;display:grid;gap:10px;}
.feature-big li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.86);}
.feature-big li svg{width:16px;height:16px;flex:0 0 auto;margin-top:5px;}
.feature-big .link-arrow{margin-top:auto;padding-top:26px;color:var(--c-accent);}
.feature-big .link-arrow:hover{color:#fff;}
.num-badge{width:44px;height:44px;border-radius:12px;background:var(--c-accent);color:var(--c-ink);font-weight:800;font-size:18px;display:flex;align-items:center;justify-content:center;margin-bottom:20px;}
.feature-small-grid{display:grid;grid-template-columns:1fr;gap:24px;}
.feature-small{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;display:flex;gap:18px;align-items:flex-start;}
.feature-small:hover{border-color:var(--c-accent);transform:translateY(-2px);box-shadow:var(--sh-2);}
.f-icon{width:44px;height:44px;border-radius:12px;background:rgba(127,216,200,.22);display:flex;align-items:center;justify-content:center;flex:0 0 auto;transition:background .2s ease;}
.feature-small:hover .f-icon{background:rgba(200,242,78,.5);}
.f-icon svg{width:22px;height:22px;}
.feature-small h3{font-size:18px;margin-bottom:8px;}
.feature-small p{font-size:14px;color:var(--c-muted);}
.feature-small .link-arrow{margin-top:10px;}

/* 场景分屏 */
.scene{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:34px 0;}
.scene + .scene{border-top:1px solid var(--c-line);}
.scene-media{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-2);}
.scene-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.scene-media .scene-label{position:absolute;left:16px;top:16px;background:rgba(11,46,42,.86);color:#fff;border-radius:999px;padding:6px 14px;font-size:12px;font-weight:700;}
.scene-body h3{font-size:22px;margin-bottom:10px;}
.scene-body > p{color:var(--c-muted);font-size:15px;}
.scene-list{margin-top:20px;display:grid;gap:12px;}
.scene-list li{display:flex;gap:10px;font-size:15px;color:var(--c-text);}
.scene-list svg{width:18px;height:18px;flex:0 0 auto;margin-top:4px;}
.scene.reverse .scene-media{order:2;}

/* 案例 */
.metric-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;background:var(--c-ink);border-radius:var(--r-card);padding:28px;margin-bottom:36px;}
.metric-bar div{text-align:center;color:#fff;}
.metric-bar b{display:block;font-size:26px;color:var(--c-accent);font-weight:800;letter-spacing:-0.02em;}
.metric-bar span{font-size:13px;color:rgba(255,255,255,.72);}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.case-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-accent);}
.case-card img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease;}
.case-card:hover img{transform:scale(1.03);}
.case-body{padding:22px;display:flex;flex-direction:column;flex:1 1 auto;}
.case-body h3{font-size:18px;margin:12px 0 8px;}
.case-body p{font-size:14px;color:var(--c-muted);}
.case-stat{margin-top:14px;padding:12px 14px;border-radius:12px;background:var(--c-bg);font-size:14px;font-weight:700;color:var(--c-ink);}
.case-body .link-arrow{margin-top:auto;padding-top:16px;}

/* 价格 */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.price-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:30px;display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease;}
.price-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.price-card.featured{background:var(--c-ink);color:#fff;border-color:var(--c-ink);box-shadow:var(--sh-2);}
.price-card.featured h3,.price-card.featured .price-value{color:#fff;}
.price-card h3{font-size:20px;display:flex;align-items:center;gap:10px;}
.price-desc{font-size:14px;color:var(--c-muted);margin-top:8px;min-height:44px;}
.price-card.featured .price-desc{color:rgba(255,255,255,.72);}
.price-value{margin-top:18px;font-size:34px;font-weight:800;color:var(--c-ink);letter-spacing:-0.02em;}
.price-value small{font-size:14px;font-weight:600;color:var(--c-muted);}
.price-card.featured .price-value small{color:rgba(255,255,255,.65);}
.price-list{margin:22px 0 26px;display:grid;gap:11px;}
.price-list li{display:flex;gap:10px;font-size:14px;color:var(--c-muted);}
.price-card.featured .price-list li{color:rgba(255,255,255,.84);}
.price-list li svg{width:17px;height:17px;flex:0 0 auto;margin-top:4px;}
.price-list li.off{color:var(--c-weak);}
.price-card.featured .price-list li.off{color:rgba(255,255,255,.45);}
.price-card .btn{margin-top:auto;width:100%;}

/* 资讯列表 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-accent);}
.news-cover{display:block;overflow:hidden;border-radius:12px;}
.news-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease;}
.news-card:hover .news-cover img{transform:scale(1.03);}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1 1 auto;}
.news-body h3{font-size:17px;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body h3 a{color:var(--c-ink);text-decoration:none;}
.news-body h3 a:hover{color:var(--c-accent-2);}
.news-body p{font-size:14px;color:var(--c-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{margin-top:16px;padding-top:14px;border-top:1px solid var(--c-line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-weak);}
.empty-state{grid-column:1/-1;text-align:center;padding:56px 24px;background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-card);}
.empty-icon{width:64px;height:64px;border-radius:50%;background:rgba(127,216,200,.24);display:flex;align-items:center;justify-content:center;margin:0 auto 18px;}
.empty-icon svg{width:28px;height:28px;}
.empty-state p{color:var(--c-muted);margin-bottom:20px;}

/* FAQ */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;transition:border-color .2s ease;}
.faq-item.is-open{border-color:var(--c-accent);}
.faq-q{width:100%;background:transparent;border:0;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 24px;min-height:56px;text-align:left;font-size:16px;font-weight:700;color:var(--c-ink);}
.faq-q i{flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:rgba(127,216,200,.3);position:relative;transition:transform .2s ease,background .2s ease;}
.faq-q i::before,.faq-q i::after{content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);background:var(--c-ink);border-radius:2px;}
.faq-q i::before{width:10px;height:2px;}
.faq-q i::after{width:2px;height:10px;transition:opacity .2s ease;}
.faq-item.is-open .faq-q i{background:var(--c-accent);transform:rotate(180deg);}
.faq-item.is-open .faq-q i::after{opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease;}
.faq-a p{padding:0 24px 22px;border-top:1px solid var(--c-line);padding-top:16px;font-size:15px;color:var(--c-muted);}

/* CTA */
.cta-band{position:relative;background:var(--c-ink);color:#fff;overflow:hidden;padding:72px 0;}
.cta-band::before{content:"";position:absolute;left:-60px;top:-80px;width:340px;height:340px;border-radius:50%;border:32px solid rgba(200,242,78,.1);}
.cta-band::after{content:"";position:absolute;right:-100px;bottom:-140px;width:420px;height:420px;border-radius:50%;border:40px solid rgba(127,216,200,.08);}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.cta-inner h2{color:#fff;font-size:30px;max-width:620px;}
.cta-inner p{margin-top:14px;color:rgba(255,255,255,.74);max-width:560px;font-size:15px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* 页脚 */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:19px;font-weight:800;margin-bottom:16px;text-decoration:none!important;}
.footer-brand .brand-mark{background:var(--c-accent);}
.footer-brand:hover{color:#fff;}
.site-footer p{font-size:14px;line-height:1.8;}
.footer-col h3{color:#fff;font-size:15px;margin-bottom:16px;font-weight:800;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px;text-decoration:none!important;}
.footer-col a:hover{color:var(--c-accent);}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.14);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.55);}

/* 响应式 */
@media (max-width:1279px){
  .search-box input{width:170px;}
  .search-box input:focus{width:190px;}
}
@media (max-width:1023px){
  :root{--sec:64px;}
  .nav-menu{display:none;}
  .nav-toggle{display:flex;}
  .nav-right .search-box{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero h1{font-size:36px;}
  .feature-layout{grid-template-columns:1fr;}
  .case-grid{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .price-grid{grid-template-columns:1fr;max-width:620px;margin:0 auto;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .metric-bar{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:767px){
  :root{--sec:48px;}
  .container{padding:0 18px;}
  .hero{padding:52px 0 48px;}
  .hero h1{font-size:30px;}
  .hero-sub{font-size:16px;}
  .hero-badges{grid-template-columns:repeat(2,1fr);gap:16px;}
  .hero-card{padding:20px;}
  .sec-head h2{font-size:24px;}
  .scene{grid-template-columns:1fr;gap:24px;padding:28px 0;}
  .scene.reverse .scene-media{order:0;}
  .case-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-inner h2{font-size:24px;}
  .price-value{font-size:28px;}
  .faq-q{padding:0 18px;font-size:15px;}
  .faq-a p{padding-left:18px;padding-right:18px;}
  .drawer{inset:70px 0 0 0;}
}
@media (max-width:520px){
  .brand{font-size:17px;}
  .hero-badges b{font-size:20px;}
  .metric-bar{padding:20px;gap:14px;}
  .metric-bar b{font-size:22px;}
}

/* roulang page: category1 */
:root{
  --c-ink:#0B2E2A;
  --c-ink-2:#123D36;
  --c-accent:#C8F24E;
  --c-accent-2:#FF6A3D;
  --c-mint:#7FD8C8;
  --c-mint-soft:#EAF7F3;
  --c-bg:#F7F8F4;
  --c-surface:#FFFFFF;
  --c-line:#E3E8E2;
  --c-text:#10201C;
  --c-muted:#5A6B64;
  --c-weak:#8A9993;
  --c-danger:#D64545;
  --sh-1:0 1px 2px rgba(11,46,42,.06);
  --sh-2:0 10px 30px rgba(11,46,42,.10);
  --sh-3:0 18px 44px rgba(11,46,42,.16);
  --r-card:16px;
  --r-btn:999px;
  --r-input:12px;
  --container:1200px;
  --gap:24px;
  --sec:80px;
  --font-cn:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-ink-2);text-decoration:none;transition:color .18s ease,border-color .18s ease;}
a:hover{color:var(--c-accent-2);text-decoration:underline;text-underline-offset:3px;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,button,textarea,select{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-ink);letter-spacing:-.02em;font-weight:800;line-height:1.28;}
p{margin:0 0 16px;}
ul,ol{margin:0;padding:0;list-style:none;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
.section{padding:var(--sec) 0;}
.section-tight{padding:56px 0;}
.section-alt{background:var(--c-surface);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.nav-wrap{display:flex;align-items:center;gap:28px;height:70px;}
.brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--c-ink);letter-spacing:-.02em;white-space:nowrap;}
.brand:hover{color:var(--c-ink);text-decoration:none;}
.brand-mark{width:34px;height:34px;border-radius:11px;background:var(--c-ink);display:flex;align-items:center;justify-content:center;flex:0 0 34px;}
.brand-mark svg{width:20px;height:20px;}
.nav-menu{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-menu a{
  position:relative;display:block;padding:10px 12px;font-size:15px;font-weight:600;color:var(--c-muted);
  border-radius:10px;white-space:nowrap;
}
.nav-menu a:hover{color:var(--c-ink);background:var(--c-mint-soft);text-decoration:none;}
.nav-menu a.is-active{color:var(--c-ink);}
.nav-menu a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:3px;border-radius:3px;background:var(--c-accent);
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.search-box{
  display:flex;align-items:center;gap:6px;
  background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--r-btn);
  padding:4px 6px 4px 14px;transition:border-color .18s ease,background .18s ease,box-shadow .18s ease;
}
.search-box input{
  border:0;background:transparent;outline:none;width:170px;padding:7px 0;font-size:14px;color:var(--c-text);
}
.search-box input::placeholder{color:var(--c-weak);}
.search-box:focus-within{background:#fff;border-color:var(--c-accent);box-shadow:0 0 0 2px rgba(200,242,78,.55);}
.search-box button{
  width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:var(--c-ink);color:var(--c-accent);transition:background .18s ease;
}
.search-box button:hover{background:var(--c-ink-2);}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--c-line);position:relative;}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;transform:translateX(-50%);width:18px;height:2px;border-radius:2px;background:var(--c-ink);content:"";
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-weight:700;font-size:15px;line-height:1;
  padding:14px 26px;border:1px solid transparent;
  transition:transform .18s ease,background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn:hover{text-decoration:none;transform:translateY(-2px);}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--c-accent);color:var(--c-ink);box-shadow:var(--sh-1);}
.btn-primary:hover{background:#B6E33F;color:var(--c-ink);box-shadow:var(--sh-2);}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-ink);}
.btn-ghost:hover{background:var(--c-mint-soft);border-color:var(--c-mint);color:var(--c-ink);}
.btn-dark{background:var(--c-ink);color:#fff;}
.btn-dark:hover{background:var(--c-ink-2);color:var(--c-accent);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;}

/* ============ 通用小组件 ============ */
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-btn);
  background:var(--c-mint-soft);color:var(--c-ink-2);
  font-size:13px;font-weight:700;letter-spacing:.02em;
}
.pill-accent{background:rgba(200,242,78,.35);color:var(--c-ink);}
.pill-dark{background:rgba(255,255,255,.14);color:#fff;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head h2{font-size:30px;line-height:1.3;margin-bottom:14px;}
.section-head p{color:var(--c-muted);margin:0;font-size:16px;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;
  color:var(--c-mint);margin-bottom:14px;
}
.eyebrow.on-light{color:var(--c-ink-2);background:var(--c-mint-soft);padding:5px 12px;border-radius:var(--r-btn);letter-spacing:.08em;}
.hr-line{height:1px;background:var(--c-line);border:0;margin:0;}

/* ============ 面包屑 ============ */
.crumb-bar{background:var(--c-surface);border-bottom:1px solid var(--c-line);}
.crumb{display:flex;align-items:center;gap:10px;padding:16px 0;font-size:14px;color:var(--c-weak);flex-wrap:wrap;}
.crumb a{color:var(--c-muted);font-weight:600;}
.crumb a:hover{color:var(--c-accent-2);}
.crumb .sep{color:var(--c-line);}
.crumb .now{color:var(--c-ink);font-weight:700;}

/* ============ Hero ============ */
.hero-band{
  position:relative;color:#fff;overflow:hidden;
  background:
    linear-gradient(180deg,rgba(11,46,42,.90),rgba(11,46,42,.94)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
}
.hero-band::after{
  content:"";position:absolute;inset:auto -10% -60% auto;width:520px;height:520px;border-radius:50%;
  border:1px solid rgba(200,242,78,.20);pointer-events:none;
}
.hero-inner{position:relative;z-index:2;padding:64px 0 68px;max-width:840px;}
.hero-inner h1{color:#fff;font-size:44px;line-height:1.22;margin:16px 0 18px;letter-spacing:-.03em;}
.hero-inner h1 em{font-style:normal;color:var(--c-accent);}
.hero-sub{font-size:18px;color:rgba(255,255,255,.82);margin-bottom:22px;max-width:660px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px;}
.hero-band .btn-ghost{border-color:rgba(255,255,255,.4);color:#fff;}
.hero-band .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:var(--c-accent);color:#fff;}
.stat-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;border-top:1px solid rgba(255,255,255,.16);padding-top:26px;}
.stat-strip .stat b{display:block;font-size:26px;color:var(--c-accent);letter-spacing:-.02em;}
.stat-strip .stat span{font-size:13px;color:rgba(255,255,255,.72);}

/* ============ 文档布局：侧栏目录 + 长文 ============ */
.doc-layout{display:grid;grid-template-columns:264px minmax(0,1fr);gap:48px;align-items:start;}
.doc-aside{position:sticky;top:96px;}
.toc-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px 20px;box-shadow:var(--sh-1);}
.toc-card h2{font-size:15px;color:var(--c-ink);letter-spacing:.02em;margin-bottom:12px;font-weight:800;}
.toc-toggle{display:none;}
.toc-list li{margin-bottom:2px;}
.toc-list a{
  display:block;padding:8px 12px;border-radius:10px;font-size:14px;font-weight:600;color:var(--c-muted);
  border-left:3px solid transparent;
}
.toc-list a:hover{background:var(--c-mint-soft);color:var(--c-ink);border-left-color:var(--c-mint);text-decoration:none;}
.toc-note{margin-top:18px;padding:14px;border-radius:12px;background:var(--c-bg);font-size:13px;color:var(--c-muted);line-height:1.7;}
.toc-note strong{color:var(--c-ink);display:block;margin-bottom:4px;font-size:13px;}

.doc-main{min-width:0;}
.lead-block{
  background:var(--c-surface);border:1px solid var(--c-line);border-left:4px solid var(--c-accent);
  border-radius:var(--r-card);padding:24px 26px;box-shadow:var(--sh-1);margin-bottom:40px;
}
.lead-block p:last-child{margin-bottom:0;}
.lead-block p{color:var(--c-muted);}
.lead-block strong{color:var(--c-ink);}

.article-body h2{
  font-size:27px;margin:52px 0 18px;padding-left:16px;position:relative;scroll-margin-top:96px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--c-accent);
}
.article-body h2:first-child{margin-top:0;}
.article-body h3{font-size:20px;margin:32px 0 12px;}
.article-body p{font-size:16px;line-height:1.9;color:var(--c-text);}
.article-body ul.dot{margin:0 0 20px;}
.article-body ul.dot li{position:relative;padding-left:22px;margin-bottom:10px;line-height:1.85;color:var(--c-muted);}
.article-body ul.dot li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;background:var(--c-mint);
}
.article-body ul.dot li strong{color:var(--c-ink);}
.callout{
  display:flex;gap:14px;background:var(--c-mint-soft);border-radius:var(--r-card);
  padding:18px 20px;margin:24px 0;border:1px solid rgba(127,216,200,.5);
}
.callout .ico{
  flex:0 0 34px;width:34px;height:34px;border-radius:50%;background:#fff;color:var(--c-ink);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;
}
.callout p{margin:0;font-size:15px;line-height:1.8;color:var(--c-ink-2);}

/* ============ 对比表 ============ */
.table-wrap{
  border:1px solid var(--c-line);border-radius:var(--r-card);background:var(--c-surface);
  overflow:hidden;box-shadow:var(--sh-1);margin:26px 0 8px;
}
.table-scroll{overflow-x:auto;}
table.cmp{border-collapse:collapse;width:100%;min-width:720px;font-size:14.5px;}
table.cmp caption{
  text-align:left;padding:18px 22px;font-weight:800;color:var(--c-ink);font-size:15px;
  border-bottom:1px solid var(--c-line);background:var(--c-surface);
}
table.cmp th,table.cmp td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--c-line);vertical-align:top;}
table.cmp thead th{background:var(--c-bg);font-size:13px;color:var(--c-muted);letter-spacing:.04em;font-weight:800;}
table.cmp tbody tr:last-child td{border-bottom:0;}
table.cmp tbody tr{transition:background .16s ease;}
table.cmp tbody tr:hover{background:#FBFCF9;}
table.cmp td:first-child{font-weight:700;color:var(--c-ink);white-space:nowrap;}
.tag-strong{display:inline-block;padding:3px 10px;border-radius:var(--r-btn);font-size:12px;font-weight:800;background:rgba(200,242,78,.4);color:var(--c-ink-2);}
.tag-mid{display:inline-block;padding:3px 10px;border-radius:var(--r-btn);font-size:12px;font-weight:800;background:var(--c-mint-soft);color:var(--c-ink-2);}

/* ============ 场景卡组 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap);}
.scene-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-mint);}
.scene-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--c-bg);}
.scene-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.scene-card:hover .thumb img{transform:scale(1.03);}
.scene-card .body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.scene-card h3{font-size:18px;}
.scene-card p{font-size:14.5px;color:var(--c-muted);line-height:1.8;margin:0;}
.scene-card .mini{margin-top:auto;display:flex;align-items:center;gap:8px;font-weight:700;font-size:14px;color:var(--c-ink-2);}
.scene-card:hover .mini{color:var(--c-accent-2);}

/* ============ 权限清单 ============ */
.perm-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:22px 0 8px;}
.perm-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:20px 22px;transition:border-color .2s ease,box-shadow .2s ease;}
.perm-card:hover{border-color:var(--c-accent);box-shadow:var(--sh-1);}
.perm-card h3{font-size:17px;display:flex;align-items:center;gap:10px;margin-bottom:10px;}
.perm-card .num{
  width:26px;height:26px;border-radius:9px;background:var(--c-ink);color:var(--c-accent);
  font-size:13px;display:flex;align-items:center;justify-content:center;flex:0 0 26px;font-weight:800;
}
.perm-card p{font-size:14.5px;color:var(--c-muted);margin:0;line-height:1.8;}

/* ============ FAQ ============ */
.faq{max-width:900px;margin:0 auto;}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.is-open{border-color:var(--c-accent);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 22px;text-align:left;font-size:16px;font-weight:700;color:var(--c-ink);
}
.faq-q:hover{color:var(--c-ink-2);}
.faq-q .sign{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;border:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:center;color:var(--c-ink);font-size:16px;line-height:1;
  transition:transform .2s ease,background .2s ease,border-color .2s ease;
}
.faq-item.is-open .faq-q .sign{background:var(--c-accent);border-color:var(--c-accent);transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease;}
.faq-a .inner{padding:0 22px 20px;border-top:1px solid var(--c-line);padding-top:16px;font-size:15px;color:var(--c-muted);line-height:1.85;}

/* ============ CTA ============ */
.cta-band{
  position:relative;color:#fff;overflow:hidden;
  background:
    linear-gradient(180deg,rgba(11,46,42,.94),rgba(18,61,54,.96)),
    url('/assets/images/backpic/back-3.png') center/cover no-repeat;
}
.cta-band::before{
  content:"";position:absolute;left:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(200,242,78,.22);
}
.cta-inner{position:relative;z-index:2;padding:72px 0;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;}
.cta-inner h2{color:#fff;font-size:32px;margin-bottom:16px;}
.cta-inner h2 em{font-style:normal;color:var(--c-accent);}
.cta-inner p{color:rgba(255,255,255,.78);margin-bottom:26px;max-width:520px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-panel{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-card);padding:26px;}
.cta-panel h3{color:#fff;font-size:18px;margin-bottom:16px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:700;color:rgba(255,255,255,.72);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--r-input);
  background:rgba(255,255,255,.94);border:1px solid transparent;color:var(--c-text);
  transition:box-shadow .18s ease,border-color .18s ease;
}
.field input::placeholder,.field textarea::placeholder{color:var(--c-weak);}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--c-accent);box-shadow:0 0 0 2px rgba(200,242,78,.7);}
.form-hint{font-size:12.5px;color:rgba(255,255,255,.6);margin:10px 0 0;}
.form-error{display:none;font-size:12.5px;color:#FFB4A2;margin-top:6px;}
.form-error.show{display:block;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:#fff;margin-bottom:14px;}
.footer-brand:hover{color:var(--c-accent);text-decoration:none;}
.footer-brand .brand-mark{background:var(--c-accent);}
.site-footer p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);margin:0;max-width:360px;}
.footer-col h3{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{color:rgba(255,255,255,.72);font-size:14.5px;}
.footer-col ul li a:hover{color:var(--c-accent);}
.footer-col ul li span{font-size:14.5px;color:rgba(255,255,255,.66);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0;display:flex;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13.5px;color:rgba(255,255,255,.55);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--container:1120px;}
  .doc-layout{grid-template-columns:232px minmax(0,1fr);gap:36px;}
}
@media (max-width:1023px){
  :root{--sec:64px;}
  .container{padding:0 20px;}
  .hero-inner h1{font-size:36px;}
  .hero-inner{padding:52px 0 56px;}
  .doc-layout{grid-template-columns:1fr;gap:28px;}
  .doc-aside{position:static;}
  .toc-toggle{
    display:inline-flex;align-items:center;gap:8px;width:100%;justify-content:space-between;
    padding:10px 0 12px;font-weight:800;color:var(--c-ink);font-size:14px;
  }
  .toc-list{max-height:0;overflow:hidden;transition:max-height .22s ease;}
  .toc-list.open{max-height:420px;}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-inner{grid-template-columns:1fr;gap:32px;padding:60px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .nav-menu{
    position:fixed;left:0;right:0;top:70px;bottom:0;background:#fff;z-index:70;
    flex-direction:column;align-items:stretch;gap:4px;padding:20px;margin:0;
    transform:translateY(-12px);opacity:0;pointer-events:none;transition:opacity .2s ease,transform .2s ease;
    overflow-y:auto;border-top:1px solid var(--c-line);
  }
  .nav-menu.open{opacity:1;transform:translateY(0);pointer-events:auto;}
  .nav-menu a{padding:14px 12px;font-size:16px;border-radius:12px;}
  .nav-menu a.is-active{background:var(--c-mint-soft);}
  .nav-menu a.is-active::after{display:none;}
  .search-box{display:none;}
  .nav-toggle{display:block;}
  .site-header .btn-primary.btn-sm{margin-left:auto;}
  .hero-inner h1{font-size:30px;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{flex:1 1 100%;}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
  .section-head h2,.cta-inner h2{font-size:24px;}
  .article-body h2{font-size:22px;}
  .scene-grid{grid-template-columns:1fr;}
  .perm-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .brand{font-size:18px;}
  .hero-inner h1{font-size:26px;}
  .stat-strip .stat b{font-size:22px;}
  .table-scroll table.cmp{min-width:640px;}
}

/* roulang page: article */
:root{
  --c-ink:#0B2E2A;
  --c-ink-2:#123D36;
  --c-accent:#C8F24E;
  --c-accent-2:#FF6A3D;
  --c-mint:#7FD8C8;
  --c-bg:#F7F8F4;
  --c-surface:#FFFFFF;
  --c-line:#E3E8E2;
  --c-text:#10201C;
  --c-muted:#5A6B64;
  --c-weak:#8A9993;
  --c-danger:#D64545;
  --sh-1:0 1px 2px rgba(11,46,42,.06);
  --sh-2:0 10px 30px rgba(11,46,42,.10);
  --r-card:16px;
  --r-btn:999px;
  --r-input:12px;
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-style:none}
a{color:var(--c-ink-2);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-accent-2)}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:800;letter-spacing:-.02em;line-height:1.28}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer;color:inherit}
input,textarea,select{font-family:inherit;font-size:inherit}
table{border-collapse:collapse}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px}
::selection{background:var(--c-accent);color:var(--c-ink)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-weight:700;font-size:15px;line-height:1;
  padding:13px 26px;border:1px solid transparent;
  transition:background .2s ease,color .2s ease,transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-accent);color:var(--c-ink);box-shadow:var(--sh-1)}
.btn-primary:hover{background:#B6E33F;color:var(--c-ink);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-ink)}
.btn-ghost:hover{background:#EDF7E4;border-color:var(--c-accent);color:var(--c-ink);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--c-ink)}
.btn-light:hover{background:var(--c-accent);color:var(--c-ink);transform:translateY(-2px)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.32);color:#fff}
.btn-outline-light:hover{border-color:var(--c-accent);color:var(--c-accent)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn:disabled,.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;background:#fff;
  border-bottom:1px solid var(--c-line);transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.nav-wrap{display:flex;align-items:center;gap:26px;min-height:70px}
.brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;color:var(--c-ink);letter-spacing:-.02em}
.brand:hover{color:var(--c-ink)}
.brand-mark{
  width:36px;height:36px;border-radius:11px;background:var(--c-ink);
  display:grid;place-items:center;flex:none;
}
.brand-mark svg{width:22px;height:22px}
.nav-menu{display:flex;align-items:center;gap:26px}
.nav-menu a{
  position:relative;font-size:15px;font-weight:600;color:var(--c-ink-2);
  padding:24px 0;display:inline-block;
}
.nav-menu a::after{
  content:"";position:absolute;left:0;right:0;bottom:16px;height:3px;border-radius:3px;
  background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-menu a:hover{color:var(--c-ink)}
.nav-menu a:hover::after{transform:scaleX(1)}
.nav-menu a.is-active{color:var(--c-ink)}
.nav-menu a.is-active::after{transform:scaleX(1)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{
  display:flex;align-items:center;gap:4px;height:40px;padding:0 6px 0 14px;
  background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--r-btn);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search-box input{
  border:0;background:transparent;outline:none;width:168px;font-size:14px;color:var(--c-text);
}
.search-box input::placeholder{color:var(--c-weak)}
.search-box button{
  width:30px;height:30px;border-radius:50%;display:grid;place-items:center;color:var(--c-muted);
  transition:background .2s ease,color .2s ease;
}
.search-box button:hover{background:#E9F2E4;color:var(--c-ink)}
.search-box:focus-within{background:#fff;border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(200,242,78,.4)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--c-line);
  place-items:center;background:#fff;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  display:block;width:18px;height:2px;border-radius:2px;background:var(--c-ink);position:relative;transition:.22s ease;
}
.nav-toggle span::before{content:"";position:absolute;top:-6px;left:0}
.nav-toggle span::after{content:"";position:absolute;top:6px;left:0}

/* ============ 面包屑与文章头部 ============ */
.article-hero{padding:34px 0 0}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--c-muted)}
.breadcrumb a{color:var(--c-muted)}
.breadcrumb a:hover{color:var(--c-accent-2)}
.breadcrumb .sep{color:var(--c-weak)}
.breadcrumb em{
  font-style:normal;color:var(--c-weak);max-width:360px;overflow:hidden;
  text-overflow:ellipsis;white-space:nowrap;
}
.article-head{max-width:880px;margin:22px 0 30px}
.kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  color:var(--c-ink-2);background:#EAF7F2;border:1px solid #D3EDE4;
  border-radius:var(--r-btn);padding:6px 14px;
}
.kicker i{width:7px;height:7px;border-radius:50%;background:var(--c-accent-2);display:inline-block}
.article-title{font-size:44px;line-height:1.2;margin:16px 0 16px;word-break:break-word}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:14px;color:var(--c-muted)}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--c-weak)}
.article-cover{
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-2);
  margin:0 0 40px;background:#DDE6DC;
}
.article-cover img{width:100%;aspect-ratio:21/9;object-fit:cover}

/* ============ 文章布局 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 304px;gap:48px;align-items:start;
  padding-bottom:80px;
}
.article-main{min-width:0}
.toc-mobile{display:none;margin-bottom:24px}
.toc-mobile summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  background:#fff;border:1px solid var(--c-line);border-radius:14px;padding:14px 18px;
  font-size:15px;font-weight:700;color:var(--c-ink);box-shadow:var(--sh-1);
}
.toc-mobile summary::-webkit-details-marker{display:none}
.toc-mobile[open] summary{border-color:var(--c-accent)}
.toc-mobile .toc-list{padding:12px 18px 6px;background:#fff;border:1px solid var(--c-line);border-top:0;border-radius:0 0 14px 14px}

/* 正文排版 */
.article-body{max-width:800px;font-size:17px;line-height:1.9;color:#1B2A26;overflow-wrap:break-word}
.article-body > *:first-child{margin-top:0}
.article-body h2{
  font-size:28px;line-height:1.35;margin:44px 0 16px;padding-left:18px;position:relative;scroll-margin-top:96px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:5px;border-radius:3px;background:var(--c-accent);
}
.article-body h3{font-size:22px;line-height:1.4;margin:32px 0 12px;scroll-margin-top:96px}
.article-body h4{font-size:18px;margin:24px 0 10px}
.article-body p{margin:0 0 20px}
.article-body strong{color:var(--c-ink);font-weight:700}
.article-body a{color:var(--c-ink-2);text-decoration:underline;text-decoration-color:var(--c-mint);text-underline-offset:3px}
.article-body a:hover{color:var(--c-accent-2);text-decoration-color:var(--c-accent-2)}
.article-body ul{margin:0 0 22px}
.article-body ul li{position:relative;padding-left:26px;margin-bottom:10px}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:12px;width:8px;height:8px;border-radius:50%;
  background:var(--c-accent);box-shadow:0 0 0 3px rgba(200,242,78,.22);
}
.article-body ol{margin:0 0 22px;padding-left:24px;list-style:decimal}
.article-body ol li{margin-bottom:10px;padding-left:4px}
.article-body ol li::marker{color:var(--c-ink-2);font-weight:700}
.article-body blockquote{
  margin:0 0 26px;padding:20px 24px;background:#fff;border-left:5px solid var(--c-mint);
  border-radius:12px;box-shadow:var(--sh-1);color:var(--c-ink-2);font-weight:500;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{
  width:100%;margin:0 0 26px;font-size:15px;background:#fff;border-radius:12px;
  box-shadow:var(--sh-1);overflow:hidden;
}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--c-line);text-align:left;vertical-align:top}
.article-body th{background:#F1F6EE;color:var(--c-ink);font-weight:700;white-space:nowrap}
.article-body tr:last-child td{border-bottom:0}
.article-body img{border-radius:14px;box-shadow:var(--sh-1);margin:6px 0 24px}
.article-body code{background:#EDF3EA;border-radius:6px;padding:2px 6px;font-size:.92em}
.article-body pre{
  background:var(--c-ink);color:#EAF4EC;border-radius:12px;padding:18px 20px;overflow-x:auto;
  font-size:14px;line-height:1.7;margin:0 0 24px;
}
.article-body pre code{background:none;padding:0;color:inherit}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:38px 0}
.article-body figure{margin:0 0 24px}
.article-body figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:8px}

/* 空态 */
.empty-state{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:48px 32px;text-align:center;box-shadow:var(--sh-1);
}
.empty-icon{
  width:64px;height:64px;border-radius:50%;background:#E9F7F2;display:grid;place-items:center;
  margin:0 auto 18px;color:var(--c-ink-2);
}
.empty-state h2{font-size:24px;margin-bottom:10px;padding:0}
.empty-state h2::before{display:none}
.empty-state p{color:var(--c-muted);font-size:15px;max-width:460px;margin:0 auto 22px}

/* 侧栏 */
.article-aside{position:sticky;top:92px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px 20px 14px;box-shadow:var(--sh-1);
}
.side-card h3{font-size:15px;display:flex;align-items:center;gap:8px;margin-bottom:12px}
.side-card h3::before{content:"";width:5px;height:16px;border-radius:3px;background:var(--c-accent);display:inline-block}
.toc-list a{
  display:block;font-size:14px;line-height:1.6;color:var(--c-muted);
  padding:7px 0 7px 12px;border-left:2px solid var(--c-line);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.toc-list a:hover{color:var(--c-ink);border-left-color:var(--c-mint)}
.toc-list a.is-current{color:var(--c-ink);font-weight:700;border-left-color:var(--c-accent)}
.hot-list li{border-bottom:1px dashed var(--c-line)}
.hot-list li:last-child{border-bottom:0}
.hot-list a{display:block;font-size:14px;line-height:1.65;padding:10px 0;color:var(--c-ink-2)}
.hot-list a:hover{color:var(--c-accent-2)}
.side-note{font-size:13px;color:var(--c-muted);padding:0 0 8px;line-height:1.7}

/* 标签 */
.tag-block{margin:40px 0 0;max-width:800px}
.tag-block h3{font-size:15px;margin-bottom:12px;color:var(--c-muted);font-weight:700;letter-spacing:0}
.tag-list{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;font-size:13px;font-weight:600;color:var(--c-ink-2);
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-btn);padding:6px 14px;
  transition:.2s ease;
}
.tag:hover{border-color:var(--c-accent);background:#F3FBE0;color:var(--c-ink)}

/* 上下篇 */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:36px 0 0;max-width:800px}
.post-nav a{
  display:block;background:#fff;border:1px solid var(--c-line);border-radius:14px;padding:16px 18px;
  transition:.22s ease;
}
.post-nav a:hover{border-color:var(--c-accent);box-shadow:var(--sh-1);transform:translateY(-2px);color:var(--c-ink)}
.post-nav small{display:block;font-size:12px;color:var(--c-weak);margin-bottom:6px;letter-spacing:.04em}
.post-nav span{font-size:15px;font-weight:700;color:var(--c-ink);display:block;line-height:1.5}
.post-nav .next{text-align:right}

/* ============ 相关推荐 ============ */
.related{padding:72px 0;background:#fff;border-top:1px solid var(--c-line);margin-top:20px}
.section-head{max-width:720px;margin-bottom:36px}
.section-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:700;color:var(--c-ink-2);
  background:#EDF7E4;border-radius:var(--r-btn);padding:5px 14px;margin-bottom:14px;
}
.section-head h2{font-size:30px;margin-bottom:12px}
.section-head p{color:var(--c-muted);font-size:15px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  display:flex;flex-direction:column;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D8E6CD}
.post-thumb{aspect-ratio:16/9;overflow:hidden;background:#E6EDE4}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.post-card:hover .post-thumb img{transform:scale(1.03)}
.post-body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1}
.post-body .chip{
  align-self:flex-start;font-size:12px;font-weight:700;color:var(--c-ink-2);
  background:#EAF7F2;border-radius:var(--r-btn);padding:4px 12px;margin-bottom:12px;
}
.post-body h3{font-size:18px;line-height:1.5;margin-bottom:10px}
.post-body h3 a:hover{color:var(--c-accent-2)}
.post-body p{font-size:14px;color:var(--c-muted);line-height:1.7;margin-bottom:16px}
.post-link{
  margin-top:auto;font-size:14px;font-weight:700;color:var(--c-ink-2);display:inline-flex;align-items:center;gap:6px;
}
.post-link:hover{color:var(--c-accent-2)}

/* ============ 底部 CTA ============ */
.cta-section{padding:80px 0}
.cta-band{
  position:relative;overflow:hidden;background:var(--c-ink);border-radius:24px;
  padding:56px 56px;color:#fff;
}
.cta-band::before{
  content:"";position:absolute;right:-90px;top:-60px;width:340px;height:340px;border-radius:50%;
  border:2px solid rgba(200,242,78,.28);
}
.cta-band::after{
  content:"";position:absolute;left:-60px;bottom:-120px;width:280px;height:280px;border-radius:50%;
  border:2px dashed rgba(127,216,200,.24);
}
.cta-inner{position:relative;z-index:2;max-width:760px}
.cta-band h2{color:#fff;font-size:32px;margin-bottom:14px}
.cta-band h2 em{font-style:normal;color:var(--c-accent)}
.cta-band p{color:rgba(255,255,255,.76);font-size:16px;margin-bottom:28px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.76);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-brand:hover{color:#fff}
.site-footer .brand-mark{background:var(--c-accent)}
.site-footer .footer-grid p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.68);max-width:340px}
.footer-col h3{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px;font-size:14px}
.footer-col a{color:rgba(255,255,255,.76);font-size:14px}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;padding:22px 0;font-size:13px;color:rgba(255,255,255,.58);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .article-title{font-size:38px}
  .article-layout{gap:36px;grid-template-columns:minmax(0,1fr) 272px}
}
@media (max-width:1023px){
  .container{padding:0 20px}
  .nav-menu{gap:18px}
  .search-box input{width:130px}
  .article-layout{grid-template-columns:1fr;gap:0;padding-bottom:56px}
  .article-aside{display:none}
  .toc-mobile{display:block}
  .article-title{font-size:34px}
  .article-cover img{aspect-ratio:16/9}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{padding:44px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .nav-wrap{gap:14px}
  .nav-toggle{display:grid}
  .nav-menu{
    position:fixed;inset:70px 0 0 0;background:#fff;flex-direction:column;align-items:stretch;
    gap:0;padding:16px 20px 110px;transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:opacity .22s ease,transform .22s ease;overflow-y:auto;border-top:1px solid var(--c-line);
  }
  .nav-menu.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-menu a{padding:16px 4px;font-size:17px;border-bottom:1px solid var(--c-line)}
  .nav-menu a::after{bottom:8px;left:4px;right:auto;width:28px}
  .search-box{display:none}
  .article-hero{padding:22px 0 0}
  .article-title{font-size:29px}
  .article-meta{font-size:13px;gap:10px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:22px;margin:34px 0 14px;padding-left:15px}
  .article-body h3{font-size:19px}
  .article-body table{font-size:14px}
  .article-body th,.article-body td{padding:10px 12px}
  .grid-3{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .post-nav .next{text-align:left}
  .cta-band{padding:34px 22px;border-radius:18px}
  .cta-band h2{font-size:24px}
  .cta-actions .btn{width:100%}
  .related{padding:52px 0}
  .section-head h2{font-size:24px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .brand{font-size:17px}
  .brand-mark{width:32px;height:32px;border-radius:10px}
  .article-title{font-size:26px}
  .article-cover{border-radius:12px;margin-bottom:28px}
  .empty-state{padding:34px 20px}
}

/* roulang page: category2 */
:root{
  --c-ink:#0B2E2A;
  --c-ink-2:#123D36;
  --c-accent:#C8F24E;
  --c-accent-2:#FF6A3D;
  --c-mint:#7FD8C8;
  --c-bg:#F7F8F4;
  --c-surface:#FFFFFF;
  --c-line:#E3E8E2;
  --c-text:#10201C;
  --c-muted:#5A6B64;
  --c-weak:#8A9993;
  --c-danger:#D64545;
  --sh-1:0 1px 2px rgba(11,46,42,.06);
  --sh-2:0 10px 30px rgba(11,46,42,.10);
  --r-card:16px;
  --r-btn:999px;
  --r-input:12px;
  --gutter:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--c-bg);
  color:var(--c-text);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
}
h1,h2,h3,h4{margin:0;letter-spacing:-0.02em;font-weight:700;color:var(--c-ink)}
h1{font-size:44px;line-height:1.18;font-weight:800}
h2{font-size:30px;line-height:1.27}
h3{font-size:22px;line-height:1.36}
p{margin:0}
a{color:var(--c-ink-2);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
a:hover{color:var(--c-accent-2)}
img{max-width:100%;display:block}
button,input{font-family:inherit;font-size:inherit}
button{cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:80px 0}
.section-sm{padding:56px 0}
.section-head{max-width:760px;margin-bottom:40px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--c-ink-2);
  background:#EAF6E6;border:1px solid #D7EBCF;border-radius:999px;
  padding:5px 14px;margin-bottom:16px;letter-spacing:.02em;
}
.section-head .eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--c-accent-2)}
.section-head p{margin-top:14px;color:var(--c-muted);font-size:16px;line-height:1.8}
.eyebrow-onDark{background:rgba(200,242,78,.14);border-color:rgba(200,242,78,.35);color:var(--c-accent)}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--r-btn);
  font-weight:700;font-size:15px;line-height:1;
  padding:14px 26px;text-decoration:none;
  transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,border-color .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-accent);color:var(--c-ink);box-shadow:0 6px 16px rgba(200,242,78,.35)}
.btn-primary:hover{background:#B6E33F;color:var(--c-ink);transform:translateY(-2px);box-shadow:0 10px 22px rgba(200,242,78,.42)}
.btn-primary:active{transform:translateY(0);background:#A9D737}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-ink)}
.btn-ghost:hover{background:#EAF6E6;border-color:var(--c-mint);color:var(--c-ink);transform:translateY(-2px)}
.btn-dark{background:var(--c-ink);color:#fff}
.btn-dark:hover{background:var(--c-ink-2);color:var(--c-accent);transform:translateY(-2px)}
.btn-onDark{background:var(--c-accent);color:var(--c-ink)}
.btn-onDark:hover{background:#B6E33F;color:var(--c-ink);transform:translateY(-2px)}
.btn-outline-onDark{background:transparent;border-color:rgba(255,255,255,.35);color:#fff}
.btn-outline-onDark:hover{background:rgba(255,255,255,.1);color:#fff;border-color:var(--c-mint)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn:disabled,.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.btn-row{display:flex;flex-wrap:wrap;gap:14px}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.nav-wrap{display:flex;align-items:center;gap:20px;height:70px}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:800;color:var(--c-ink);letter-spacing:-0.02em;
  flex-shrink:0;
}
.brand:hover{color:var(--c-ink)}
.brand-mark{
  width:36px;height:36px;border-radius:11px;background:var(--c-ink);
  display:grid;place-items:center;flex-shrink:0;
}
.brand-mark svg{width:22px;height:22px}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:10px}
.nav-menu a{
  position:relative;display:inline-block;
  padding:8px 13px;font-size:15px;font-weight:500;color:var(--c-ink-2);
  border-radius:8px;
}
.nav-menu a:hover{color:var(--c-accent-2);background:#F2F7EE}
.nav-menu a.is-active{color:var(--c-ink);font-weight:700}
.nav-menu a.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:-3px;height:3px;
  background:var(--c-accent);border-radius:3px;
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{
  display:flex;align-items:center;gap:6px;
  background:#F1F4EF;border:1px solid transparent;border-radius:999px;
  height:40px;padding:0 6px 0 16px;
  transition:background-color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{background:#fff;border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(200,242,78,.4)}
.search-box input{
  border:0;background:transparent;outline:none;width:168px;
  font-size:14px;color:var(--c-text);
}
.search-box input::placeholder{color:var(--c-weak)}
.search-box button{
  width:28px;height:28px;border-radius:50%;border:0;
  background:var(--c-ink);color:var(--c-accent);
  display:grid;place-items:center;flex-shrink:0;
  transition:background-color .2s ease,transform .2s ease;
}
.search-box button:hover{background:var(--c-ink-2);transform:scale(1.06)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--c-line);background:#fff;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:18px;height:2px;background:var(--c-ink);border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none}
.nav-toggle.is-open span{background:transparent}
.nav-toggle.is-open span::before{transform:rotate(45deg) translate(4px,4px)}
.nav-toggle.is-open span::after{transform:rotate(-45deg) translate(4px,-4px)}

/* ===== 面包屑 ===== */
.breadcrumbs{padding:18px 0 0;font-size:14px;color:var(--c-weak)}
.breadcrumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumbs li{display:flex;align-items:center;gap:8px}
.breadcrumbs li+li::before{content:"/";color:#C3CCC6}
.breadcrumbs a{color:var(--c-muted)}
.breadcrumbs a:hover{color:var(--c-accent-2)}
.breadcrumbs .current{color:var(--c-ink);font-weight:600}

/* ===== 内页 Hero ===== */
.page-hero{
  position:relative;overflow:hidden;background:var(--c-ink);color:#fff;
  padding:56px 0 72px;margin-top:0;
}
.page-hero-bg{
  position:absolute;inset:0;
  background:url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
  opacity:.42;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(11,46,42,.94) 0%,rgba(11,46,42,.86) 48%,rgba(18,61,54,.78) 100%);
}
.page-hero .container{position:relative;z-index:2}
.hero-lines{
  position:absolute;right:-60px;bottom:-80px;width:520px;height:420px;
  opacity:.16;pointer-events:none;z-index:1;
}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-top:22px}
.hero-copy h1{color:#fff;margin-bottom:16px}
.hero-copy h1 .hl{color:var(--c-accent)}
.hero-sub{color:rgba(255,255,255,.86);font-size:17px;line-height:1.8;max-width:520px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0 28px}
.hero-points span{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;font-weight:600;color:#EAF6E6;
  background:rgba(255,255,255,.08);border:1px solid rgba(200,242,78,.32);
  border-radius:999px;padding:6px 14px;
}
.hero-points span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent)}

.verify-card{
  background:#fff;border-radius:var(--r-card);box-shadow:var(--sh-2);
  padding:24px;color:var(--c-text);position:relative;
}
.verify-card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.verify-card-head h2{font-size:17px;letter-spacing:0}
.pill-live{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;
  color:#1F6B4F;background:#E4F6E9;border-radius:999px;padding:4px 11px;
}
.pill-live::before{content:"";width:6px;height:6px;border-radius:50%;background:#2F8F6B;animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.step-line{display:grid;gap:12px}
.step-line li{
  display:grid;grid-template-columns:30px 1fr auto;gap:12px;align-items:center;
  padding:12px 14px;border:1px solid var(--c-line);border-radius:12px;background:#FBFCF9;
}
.step-line li.is-done{background:#F2FAF0;border-color:#D6EBCB}
.step-line li.is-active{border-color:var(--c-accent);background:#FBFEEF;box-shadow:0 0 0 3px rgba(200,242,78,.25)}
.step-idx{
  width:26px;height:26px;border-radius:50%;display:grid;place-items:center;
  font-size:12px;font-weight:800;background:#E7EDE6;color:var(--c-ink-2);
}
.step-line li.is-done .step-idx{background:#2F8F6B;color:#fff}
.step-line li.is-active .step-idx{background:var(--c-accent);color:var(--c-ink)}
.step-name{font-size:14px;font-weight:600;color:var(--c-ink)}
.step-meta{font-size:12px;color:var(--c-weak);white-space:nowrap}
.verify-foot{
  margin-top:18px;padding-top:16px;border-top:1px dashed var(--c-line);
  display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-muted);
}
.verify-foot strong{color:var(--c-ink);font-size:15px}

/* ===== 卡片通用 ===== */
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  height:100%;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-accent)}
.card h3{font-size:18px;margin-bottom:10px}
.card p{color:var(--c-muted);font-size:15px;line-height:1.8}
.card-icon{
  width:44px;height:44px;border-radius:13px;background:#EEF6EC;color:var(--c-ink-2);
  display:grid;place-items:center;margin-bottom:16px;
  transition:background-color .2s ease,color .2s ease;
}
.card:hover .card-icon{background:var(--c-accent);color:var(--c-ink)}
.card-icon svg{width:22px;height:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gutter)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gutter)}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:32px}
.tag{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.02em;
  padding:4px 11px;border-radius:999px;background:#EEF6EC;color:var(--c-ink-2);
}
.tag-orange{background:#FFEDE5;color:#B2401C}
.tag-mint{background:#E2F6F1;color:#1C6B5C}
.tag-dark{background:var(--c-ink);color:var(--c-accent)}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:14px;
  color:var(--c-ink-2);margin-top:16px;
}
.link-arrow::after{content:"→";transition:transform .2s ease}
.link-arrow:hover{color:var(--c-accent-2);text-decoration:underline}
.link-arrow:hover::after{transform:translateX(4px)}

/* ===== 时间轴 ===== */
.timeline{margin-top:8px}
.tl-row{display:grid;grid-template-columns:72px 1fr;gap:24px;position:relative;padding-bottom:26px}
.tl-row:last-child{padding-bottom:0}
.tl-row:not(:last-child)::before{
  content:"";position:absolute;left:35px;top:76px;bottom:6px;width:2px;
  background:repeating-linear-gradient(180deg,var(--c-line) 0 7px,transparent 7px 14px);
}
.tl-dot{
  width:72px;height:72px;border-radius:20px;background:#fff;border:1px solid var(--c-line);
  display:grid;place-items:center;font-size:22px;font-weight:800;color:var(--c-ink);
  box-shadow:var(--sh-1);position:relative;z-index:1;
}
.tl-row.is-key .tl-dot{background:var(--c-ink);color:var(--c-accent);border-color:var(--c-ink)}
.tl-body{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px 26px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tl-body:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-accent)}
.tl-body h3{font-size:19px;margin-bottom:8px}
.tl-body p{color:var(--c-muted);font-size:15px}
.tl-list{margin-top:14px;display:grid;gap:8px}
.tl-list li{position:relative;padding-left:20px;font-size:14px;color:var(--c-ink-2)}
.tl-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;
  border-radius:50%;background:var(--c-mint);
}

/* ===== 对比表 ===== */
.table-wrap{
  overflow-x:auto;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
}
table{width:100%;border-collapse:collapse;min-width:760px}
caption{
  text-align:left;padding:20px 24px 6px;font-size:14px;color:var(--c-muted);
}
thead th{
  background:#F2F7EE;color:var(--c-ink);font-size:14px;font-weight:700;
  padding:16px 22px;text-align:left;border-bottom:1px solid var(--c-line);white-space:nowrap;
}
thead th:nth-child(2){color:#1C6B5C}
thead th:nth-child(3){color:#B2401C}
tbody td{
  padding:16px 22px;font-size:15px;color:var(--c-text);
  border-bottom:1px solid var(--c-line);
}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover{background:#FAFCF7}
tbody td:first-child{font-weight:600;color:var(--c-ink)}
.yes{color:#2F8F6B;font-weight:700}
.no{color:var(--c-weak)}
.opt{color:var(--c-accent-2);font-weight:600}

/* ===== 场景卡 ===== */
.scene-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;height:100%;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-accent)}
.scene-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#E7EDE6}
.scene-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.scene-card:hover .scene-media img{transform:scale(1.03)}
.scene-media .tag{position:absolute;left:14px;top:14px;background:#fff}
.scene-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.scene-body h3{font-size:18px;margin-bottom:10px}
.scene-body p{color:var(--c-muted);font-size:15px;flex:1}

/* ===== 提示条 ===== */
.notice{
  display:grid;grid-template-columns:56px 1fr auto;gap:20px;align-items:center;
  background:var(--c-ink);color:#fff;border-radius:var(--r-card);
  padding:24px 28px;position:relative;overflow:hidden;
}
.notice::after{
  content:"";position:absolute;right:-40px;top:-40px;width:200px;height:200px;
  border-radius:50%;background:radial-gradient(circle,rgba(200,242,78,.22),transparent 68%);
}
.notice-icon{
  width:56px;height:56px;border-radius:16px;background:rgba(200,242,78,.16);
  display:grid;place-items:center;color:var(--c-accent);flex-shrink:0;
}
.notice h3{color:#fff;font-size:19px;margin-bottom:6px}
.notice p{color:rgba(255,255,255,.78);font-size:15px}
.notice .btn{position:relative;z-index:1}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:var(--c-mint)}
.faq-item.is-open{border-color:var(--c-accent);box-shadow:var(--sh-2)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:16px 22px;background:transparent;border:0;
  text-align:left;font-size:16px;font-weight:700;color:var(--c-ink);
}
.faq-q:hover{color:var(--c-accent-2)}
.faq-sign{
  width:26px;height:26px;border-radius:50%;background:#EEF6EC;color:var(--c-ink);
  display:grid;place-items:center;flex-shrink:0;font-size:17px;font-weight:700;
  transition:transform .2s ease,background-color .2s ease;
}
.faq-item.is-open .faq-sign{transform:rotate(45deg);background:var(--c-accent)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .22s ease;
  border-top:1px solid transparent;
}
.faq-item.is-open .faq-a{max-height:340px;border-top-color:var(--c-line)}
.faq-a p{padding:16px 22px 20px;color:var(--c-muted);font-size:15px;line-height:1.85}

/* ===== CTA ===== */
.cta-band{
  position:relative;overflow:hidden;background:var(--c-ink);color:#fff;
  padding:72px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 12% 20%,rgba(200,242,78,.16),transparent 42%),
    radial-gradient(circle at 88% 82%,rgba(127,216,200,.14),transparent 46%);
}
.cta-lines{position:absolute;left:-40px;bottom:-60px;width:420px;height:320px;opacity:.14;pointer-events:none}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center}
.cta-inner h2{color:#fff;font-size:32px;margin-bottom:14px}
.cta-inner p{color:rgba(255,255,255,.8);font-size:16px;max-width:560px}
.cta-side{display:grid;gap:12px}
.cta-mini{
  display:flex;align-items:center;gap:12px;font-size:14px;color:rgba(255,255,255,.85);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:12px;padding:12px 16px;
}
.cta-mini svg{width:18px;height:18px;color:var(--c-accent);flex-shrink:0}

/* ===== 页脚 ===== */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:64px 0 0;font-size:15px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:800;
  color:#fff;letter-spacing:-0.02em;margin-bottom:14px;
}
.footer-brand:hover{color:var(--c-accent)}
.footer-brand .brand-mark{background:var(--c-accent)}
.site-footer p{color:rgba(255,255,255,.66);line-height:1.85;font-size:14px;max-width:340px}
.footer-col h3{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:0}
.footer-col ul{display:grid;gap:10px}
.footer-col li{font-size:14px;color:rgba(255,255,255,.66)}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .container{max-width:960px}
  h1{font-size:38px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .hero-grid{gap:36px}
}
@media (max-width:1023px){
  .container{max-width:720px}
  .nav-menu{
    position:fixed;left:0;right:0;top:70px;bottom:0;
    background:#fff;flex-direction:column;align-items:stretch;gap:0;
    padding:20px;margin:0;overflow-y:auto;
    transform:translateX(-100%);transition:transform .24s ease;
    border-top:1px solid var(--c-line);
  }
  .nav-menu.is-open{transform:translateX(0)}
  .nav-menu a{padding:16px 12px;font-size:17px;border-bottom:1px solid var(--c-line);border-radius:0}
  .nav-menu a.is-active::after{left:12px;right:auto;width:28px;bottom:8px}
  .nav-toggle{display:block}
  .search-box{display:none}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-copy h1{font-size:34px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .cta-inner{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .section{padding:56px 0}
  h2{font-size:26px}
  .notice{grid-template-columns:56px 1fr;gap:16px}
  .notice .btn{grid-column:1 / -1;justify-self:start}
}
@media (max-width:767px){
  .container{max-width:100%;padding:0 16px}
  h1{font-size:30px}
  h2{font-size:24px}
  h3{font-size:19px}
  .page-hero{padding:36px 0 52px}
  .hero-copy h1{font-size:29px}
  .hero-sub{font-size:15px}
  .grid-4,.grid-3,.grid-2{grid-template-columns:1fr;gap:16px}
  .nav-wrap{height:64px}
  .nav-menu{top:64px}
  .brand{font-size:17px}
  .brand-mark{width:32px;height:32px}
  .tl-row{grid-template-columns:52px 1fr;gap:14px}
  .tl-dot{width:52px;height:52px;border-radius:16px;font-size:17px}
  .tl-row:not(:last-child)::before{left:25px;top:56px}
  .tl-body{padding:18px}
  .step-line li{grid-template-columns:26px 1fr;gap:10px}
  .step-meta{grid-column:2;font-size:11px}
  .btn{padding:12px 20px;font-size:14px}
  .btn-row{gap:10px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-band{padding:48px 0}
  .cta-inner h2{font-size:23px}
  .faq-q{font-size:15px;padding:14px 16px}
  .faq-a p{padding:14px 16px 18px}
}
@media (max-width:520px){
  .hero-points span{font-size:12px;padding:5px 11px}
  .section{padding:44px 0}
}