/* roulang page: index */
/* ===== 设计令牌 ===== */
:root{
  --c-primary:#2E6B5E;
  --c-primary-deep:#1F4E44;
  --c-primary-soft:#E4EFEA;
  --c-accent:#D97941;
  --c-accent-soft:#FBEDE2;
  --c-bg:#F6F7F4;
  --c-surface:#FFFFFF;
  --c-night:#16231F;
  --c-ink:#16231F;
  --c-body:#3A4642;
  --c-muted:#6E7A75;
  --c-line:#E2E6DF;
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px;
  --sp-6:32px; --sp-7:48px; --sp-8:72px; --sp-9:96px;
  --r-sm:8px; --r-md:14px; --r-lg:22px; --r-pill:999px;
  --sh-1:0 1px 2px rgba(22,35,31,.05), 0 6px 18px -10px rgba(22,35,31,.16);
  --sh-2:0 14px 34px -18px rgba(22,35,31,.28);
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --ff:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
/* ===== reset 与基础 ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--ff);
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-body);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
h1,h2,h3,h4{color:var(--c-ink);font-weight:700;line-height:1.3;}
h1{font-size:30px;line-height:1.22;letter-spacing:-.2px;}
h2{font-size:24px;line-height:1.32;}
h3{font-size:19px;line-height:1.45;font-weight:600;}
h4{font-size:16px;line-height:1.5;font-weight:600;}
p{margin-bottom:1.15em;}
p:last-child{margin-bottom:0;}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-primary);text-decoration:none;transition:color .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease);}
a:hover{color:var(--c-accent);}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--c-accent);outline-offset:2px;border-radius:var(--r-sm);
}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
ul.plain{list-style:none;padding:0;margin:0;}
::selection{background:var(--c-primary-soft);color:var(--c-primary-deep);}
/* ===== 覆盖 Foundation 默认味道 ===== */
body,.button,button,input,select,textarea{font-family:var(--ff);}
.button{
  background:var(--c-primary);color:#fff;border-radius:10px;font-weight:600;
  padding:14px 26px;font-size:16px;line-height:1.2;border:1px solid transparent;
  transition:background-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease),color .22s var(--ease);
}
.button:hover,.button:focus{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-1);}
.button:active{transform:none;box-shadow:none;}
input[type="text"],input[type="tel"],input[type="email"],textarea,select{
  border:1px solid var(--c-line);border-radius:10px;background:#fff;color:var(--c-body);
  box-shadow:none;height:48px;padding:0 14px;font-size:16px;margin:0;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
textarea{height:auto;padding:12px 14px;line-height:1.7;resize:vertical;min-height:120px;}
input[type="text"]:focus,input[type="tel"]:focus,input[type="email"]:focus,textarea:focus,select:focus{
  border-color:var(--c-primary);box-shadow:0 0 0 3px var(--c-primary-soft);outline:none;
}
.accordion{background:transparent;border:0;margin:0;}
.accordion-title,.accordion-item:first-child .accordion-title{border:0;}
/* ===== 布局容器 ===== */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
.container-narrow{max-width:760px;}
.container-wide{max-width:1440px;}
.section{padding:56px 0;}
.section-tight{padding:40px 0;}
.section-hd{max-width:720px;margin-bottom:var(--sp-6);}
.section-hd.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.06em;
  color:var(--c-primary);background:var(--c-primary-soft);border-radius:var(--r-pill);
  padding:6px 14px;font-weight:600;margin-bottom:var(--sp-4);
}
.section-hd h2{margin-bottom:var(--sp-4);}
.lead{color:var(--c-body);font-size:16.5px;}
.muted{color:var(--c-muted);}
.small{font-size:14px;line-height:1.7;}
.divider{height:1px;background:var(--c-line);border:0;margin:0;}
/* ===== 按钮体系 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:14px 26px;border-radius:10px;font-size:16px;font-weight:600;
  border:1px solid transparent;text-align:center;
  transition:background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-primary:active{transform:none;box-shadow:none;}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-line);}
.btn-ghost:hover{background:var(--c-primary-soft);border-color:var(--c-primary);color:var(--c-primary-deep);}
.btn-sm{padding:10px 18px;font-size:14.5px;min-height:40px;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--c-primary);
  border-bottom:1px solid rgba(46,107,94,.45);padding-bottom:2px;
}
.link-arrow i{transition:transform .22s var(--ease);font-size:13px;}
.link-arrow:hover{color:var(--c-accent);border-bottom-color:var(--c-accent);border-bottom-width:2px;}
.link-arrow:hover i{transform:translateX(3px);}
/* ===== 徽章与标签 ===== */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 12px;
  border-radius:var(--r-pill);background:var(--c-primary-soft);color:var(--c-primary);
  font-size:13px;font-weight:600;white-space:nowrap;
}
.badge.is-accent{background:var(--c-accent-soft);color:var(--c-accent);}
.badge.is-line{background:#fff;border:1px solid var(--c-line);color:var(--c-body);}
.badge-list{display:flex;flex-wrap:wrap;gap:var(--sp-3);}
/* ===== 头部 ===== */
.site-header{position:sticky;top:0;z-index:800;background:var(--c-surface);border-bottom:1px solid var(--c-line);transition:box-shadow .22s var(--ease);}
.site-header.is-stuck{box-shadow:var(--sh-1);}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;min-height:68px;gap:var(--sp-4);}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);font-weight:700;font-size:19px;letter-spacing:.01em;}
.brand:hover{color:var(--c-primary);}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;color:var(--c-primary);flex:0 0 auto;}
.brand-mark svg{width:30px;height:30px;min-height:26px;}
.brand-sub{display:block;font-size:12px;font-weight:500;color:var(--c-muted);letter-spacing:.16em;line-height:1.2;}
.topbar-actions{display:flex;align-items:center;gap:var(--sp-4);}
.search-toggle{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 14px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);color:var(--c-body);font-size:14.5px;transition:all .22s var(--ease);
}
.search-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft);}
.topbar-phone{font-size:14.5px;color:var(--c-body);display:inline-flex;align-items:center;gap:8px;}
.topbar-phone i{color:var(--c-accent);}
.topbar-phone strong{color:var(--c-ink);font-weight:700;letter-spacing:.02em;}
.nav-toggle{
  display:none;align-items:center;gap:8px;height:44px;padding:0 14px;border:1px solid var(--c-line);
  border-radius:10px;color:var(--c-body);font-size:14.5px;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}
.search-bar{display:none;border-top:1px solid var(--c-line);background:var(--c-bg);padding:12px 0;}
.search-bar.is-open{display:block;}
.search-bar form{display:flex;gap:10px;}
.search-bar input{flex:1;height:46px;}
.channelbar{background:var(--c-bg);border-top:1px solid var(--c-line);}
.channelbar-inner{display:flex;align-items:center;gap:var(--sp-5);min-height:52px;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;}
.channelbar-inner::-webkit-scrollbar{display:none;}
.channel{
  flex:0 0 auto;font-size:15px;color:var(--c-body);padding:14px 4px;position:relative;white-space:nowrap;
  border-radius:var(--r-pill);
}
.channel::after{
  content:"";position:absolute;left:4px;right:4px;bottom:8px;height:3px;border-radius:2px;
  background:transparent;transition:background-color .22s var(--ease);
}
.channel:hover{color:var(--c-primary);background:var(--c-primary-soft);}
.channel.is-active{color:var(--c-primary);font-weight:600;}
.channel.is-active::after{background:var(--c-primary);}
.anchor-tags{display:none;margin-left:auto;gap:6px;}
.anchor-tags a{
  font-size:13px;color:var(--c-muted);padding:5px 10px;border-radius:var(--r-pill);
  transition:all .22s var(--ease);white-space:nowrap;
}
.anchor-tags a:hover,.anchor-tags a.is-active{background:#fff;color:var(--c-primary);box-shadow:var(--sh-1);}
/* 移动侧滑 */
.mobile-panel{
  position:fixed;top:0;right:0;bottom:0;width:82%;max-width:340px;background:var(--c-surface);
  z-index:1000;transform:translateX(102%);transition:transform .28s var(--ease);
  padding:22px 20px;overflow-y:auto;box-shadow:var(--sh-2);
}
.mobile-panel.is-open{transform:translateX(0);}
.mobile-panel h3{font-size:15px;color:var(--c-muted);font-weight:600;margin:18px 0 8px;}
.mobile-panel a.m-link{display:block;padding:12px 0;font-size:16.5px;color:var(--c-ink);border-bottom:1px solid var(--c-line);}
.mobile-panel a.m-link:hover{color:var(--c-primary);}
.panel-close{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.panel-close strong{font-size:17px;color:var(--c-ink);}
.panel-close button{width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);color:var(--c-body);}
.panel-close button:hover{border-color:var(--c-primary);color:var(--c-primary);}
.backdrop{position:fixed;inset:0;background:rgba(22,35,31,.45);opacity:0;visibility:hidden;transition:opacity .28s var(--ease);z-index:990;}
.backdrop.is-open{opacity:1;visibility:visible;}
/* ===== Hero ===== */
.hero{background:var(--c-surface);border-bottom:1px solid var(--c-line);padding:44px 0 0;}
.hero-grid{display:grid;grid-template-columns:1fr;gap:var(--sp-6);align-items:center;}
.hero h1{font-size:30px;margin-bottom:var(--sp-4);}
.hero-sub{font-size:16.5px;color:var(--c-body);max-width:36em;margin-bottom:var(--sp-5);}
.hero-cta{display:flex;flex-direction:column;gap:12px;margin-bottom:var(--sp-5);}
.hero-media{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--c-line);min-height:240px;background:var(--c-primary-soft);}
.hero-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(46,107,94,.12) 0%,rgba(246,247,244,.85) 100%);
}
.hero-media-cap{
  position:absolute;left:18px;bottom:16px;right:18px;z-index:2;font-size:13px;color:var(--c-body);
  background:rgba(255,255,255,.88);border:1px solid var(--c-line);border-radius:var(--r-md);padding:10px 14px;
}
.hero-stats{
  display:grid;grid-template-columns:repeat(2,1fr);gap:var(--sp-4);
  border-top:1px solid var(--c-line);margin-top:var(--sp-7);padding:var(--sp-5) 0;
}
.stat-num{font-size:26px;font-weight:700;color:var(--c-accent);line-height:1.2;letter-spacing:-.5px;}
.stat-label{font-size:13.5px;color:var(--c-muted);line-height:1.6;}
/* ===== 卖点 ===== */
.feature-list{display:grid;gap:var(--sp-4);}
.feature-item{
  display:grid;grid-template-columns:1fr;gap:var(--sp-3);
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:var(--sp-5);box-shadow:var(--sh-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.feature-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.feature-kicker{display:flex;align-items:center;gap:10px;}
.feature-ico{
  width:38px;height:38px;border-radius:10px;background:var(--c-primary-soft);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;flex:0 0 auto;
}
.feature-item h3{font-size:18px;}
.feature-item p{color:var(--c-body);font-size:15.5px;}
/* ===== 演示区 图文交替 ===== */
.demo-row{display:grid;grid-template-columns:1fr;gap:var(--sp-5);align-items:center;padding:var(--sp-6) 0;border-bottom:1px solid var(--c-line);}
.demo-row:last-child{border-bottom:0;}
.demo-media{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--c-line);background:var(--c-primary-soft);}
.demo-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.demo-body h3{margin-bottom:var(--sp-3);}
.demo-body p{margin-bottom:var(--sp-4);}
.demo-points{list-style:none;padding:0;margin:0 0 var(--sp-5);display:grid;gap:10px;}
.demo-points li{position:relative;padding-left:22px;font-size:15.5px;color:var(--c-body);}
.demo-points li::before{
  content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;border-radius:2px;background:var(--c-primary);
}
/* ===== 深色证据区 ===== */
.section-night{background:var(--c-night);color:rgba(255,255,255,.82);}
.section-night h2,.section-night h3{color:#fff;}
.section-night .eyebrow{background:rgba(255,255,255,.1);color:#fff;}
.section-night .divider{background:rgba(255,255,255,.12);}
.night-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--sp-5);margin:var(--sp-6) 0;}
.night-stat{border-left:2px solid var(--c-accent);padding-left:var(--sp-4);}
.night-stat .stat-num{font-size:30px;}
.night-stat .stat-label{color:rgba(255,255,255,.7);}
.night-note{font-size:13px;color:rgba(255,255,255,.55);border-top:1px solid rgba(255,255,255,.12);padding-top:var(--sp-4);}
.quote-grid{display:grid;grid-template-columns:1fr;gap:var(--sp-4);margin-top:var(--sp-6);}
.quote-card{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:var(--r-md);
  padding:var(--sp-5);transition:background-color .22s var(--ease),transform .22s var(--ease);
}
.quote-card:hover{background:rgba(255,255,255,.09);transform:translateY(-3px);}
.quote-head{display:flex;align-items:center;gap:12px;margin-bottom:var(--sp-3);}
.quote-avatar{
  width:40px;height:40px;border-radius:50%;background:var(--c-accent);color:#fff;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;flex:0 0 auto;
}
.quote-card p{color:rgba(255,255,255,.86);font-size:15.5px;}
.quote-by{font-size:13.5px;color:rgba(255,255,255,.6);margin-top:12px;}
/* ===== 价格 ===== */
.price-grid{display:grid;grid-template-columns:1fr;gap:var(--sp-5);}
.price-main{
  position:relative;background:var(--c-surface);border:1px solid var(--c-primary);border-radius:var(--r-lg);
  padding:var(--sp-6);box-shadow:var(--sh-1);
}
.price-main::before{
  content:"";position:absolute;left:0;top:24px;bottom:24px;width:2px;background:var(--c-primary);border-radius:2px;
}
.price-tag{position:absolute;top:20px;right:22px;}
.price-main h3{font-size:22px;margin-bottom:10px;}
.price-value{font-size:28px;font-weight:700;color:var(--c-primary);letter-spacing:-.5px;line-height:1.2;}
.price-value span{font-size:15px;color:var(--c-muted);font-weight:500;}
.price-list{list-style:none;padding:0;margin:var(--sp-5) 0;display:grid;gap:10px;}
.price-list li{position:relative;padding-left:24px;font-size:15.5px;}
.price-list li i{position:absolute;left:0;top:.35em;color:var(--c-primary);font-size:13px;}
.price-side{display:grid;gap:var(--sp-5);}
.price-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:var(--sp-5);box-shadow:var(--sh-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.price-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-primary);}
.price-card h4{margin-bottom:8px;font-size:17px;}
.price-card .price-value{font-size:22px;margin-bottom:10px;}
.price-note{font-size:13px;color:var(--c-muted);margin-top:var(--sp-5);}
/* ===== FAQ ===== */
.faq-grid{display:grid;grid-template-columns:1fr;gap:var(--sp-3);}
.faq-col{display:grid;gap:12px;align-content:start;}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item:hover{border-color:var(--c-primary);box-shadow:var(--sh-1);}
.faq-item.is-open{border-color:var(--c-primary);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:flex-start;gap:14px;text-align:left;
  padding:18px 20px;color:var(--c-ink);font-size:17px;font-weight:600;line-height:1.55;
}
.faq-idx{font-size:13px;font-weight:700;color:var(--c-accent);padding-top:4px;flex:0 0 auto;}
.faq-sign{
  margin-left:auto;flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--c-line);color:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;transition:transform .26s var(--ease),background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.faq-item.is-open .faq-sign{transform:rotate(45deg);background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .28s var(--ease);}
.faq-item.is-open .faq-a{grid-template-rows:1fr;}
.faq-a > div{overflow:hidden;}
.faq-a p{padding:0 20px 20px 46px;font-size:15.5px;color:var(--c-body);}
/* ===== 最新信息 ===== */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--sp-4);flex-wrap:wrap;margin-bottom:var(--sp-6);}
.news-grid{display:grid;grid-template-columns:1fr;gap:var(--sp-5);}
.news-card{
  display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);color:inherit;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-primary);color:inherit;}
.news-cover{position:relative;background:var(--c-primary-soft);}
.news-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.news-badge{position:absolute;left:12px;top:12px;}
.news-body{padding:var(--sp-5);display:flex;flex-direction:column;gap:10px;flex:1;}
.news-title{
  font-size:17px;font-weight:700;color:var(--c-ink);line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-title{color:var(--c-primary);}
.news-sum{
  font-size:14.5px;color:var(--c-muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:13.5px;color:var(--c-muted);padding-top:var(--sp-4);border-top:1px solid var(--c-line);
}
.news-meta i{color:var(--c-primary);}
.empty-state{
  min-height:280px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-md);
  color:var(--c-muted);text-align:center;padding:var(--sp-6);
}
.empty-state i{font-size:30px;color:var(--c-primary);opacity:.7;}
/* ===== 结尾 CTA ===== */
.cta-section{background:var(--c-primary-soft);padding:56px 0;}
.cta-grid{display:grid;grid-template-columns:1fr;gap:var(--sp-6);align-items:start;}
.cta-form{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:var(--sp-5);box-shadow:var(--sh-1);
}
.field{margin-bottom:var(--sp-4);}
.field label{display:block;font-size:14px;color:var(--c-muted);margin-bottom:8px;}
.field input,.field textarea{width:100%;}
.form-note{font-size:13px;color:var(--c-muted);line-height:1.7;margin-top:var(--sp-4);}
.error-text{display:none;font-size:13px;color:var(--c-accent);margin-top:6px;}
.field.has-error input,.field.has-error textarea{border-color:var(--c-accent);}
.field.has-error .error-text{display:block;}
/* ===== 页脚 ===== */
.site-footer{background:var(--c-night);color:rgba(255,255,255,.72);padding:56px 0 28px;font-size:14.5px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:var(--sp-6);}
.footer-brand .brand{color:#fff;}
.footer-brand .brand:hover{color:var(--c-accent);}
.footer-brand .brand-mark{color:var(--c-accent);}
.footer-desc{margin-top:var(--sp-4);color:rgba(255,255,255,.66);font-size:14px;line-height:1.8;max-width:34em;}
.footer-contact{margin-top:var(--sp-4);display:grid;gap:8px;font-size:14px;color:rgba(255,255,255,.68);}
.footer-contact i{color:var(--c-accent);width:16px;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:var(--sp-4);font-weight:600;}
.footer-links{list-style:none;padding:0;margin:0;display:grid;gap:10px;}
.footer-links a{color:rgba(255,255,255,.72);}
.footer-links a:hover{color:var(--c-accent);}
.qr-box{
  width:96px;height:96px;border-radius:var(--r-sm);background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);display:flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.55);font-size:12px;text-align:center;line-height:1.4;
}
.footer-bottom{
  margin-top:var(--sp-7);padding-top:var(--sp-5);border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13.5px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.6);}
.footer-bottom a:hover{color:var(--c-accent);}
/* ===== 浮动 CTA ===== */
.float-cta{position:fixed;right:24px;bottom:110px;z-index:900;display:none;flex-direction:column;gap:12px;opacity:0;transition:opacity .3s var(--ease);}
.float-cta.is-visible{opacity:1;}
.float-btn{
  position:relative;width:52px;height:52px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  font-size:18px;box-shadow:var(--sh-2);transition:transform .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease);
}
.float-btn.main{background:var(--c-primary);color:#fff;animation:breathe 2.8s ease-in-out infinite;}
.float-btn.main:hover{background:var(--c-primary-deep);transform:translateY(-2px);color:#fff;}
.float-btn.sub{background:#fff;color:var(--c-primary);border:1px solid var(--c-line);}
.float-btn.sub:hover{border-color:var(--c-primary);background:var(--c-primary-soft);transform:translateY(-2px);}
.float-btn .tip{
  position:absolute;right:64px;top:50%;transform:translateY(-50%) translateX(6px);
  background:var(--c-night);color:#fff;font-size:13px;padding:6px 12px;border-radius:var(--r-sm);
  white-space:nowrap;opacity:0;pointer-events:none;transition:all .22s var(--ease);
}
.float-btn:hover .tip{opacity:1;transform:translateY(-50%) translateX(0);}
@keyframes breathe{0%,100%{box-shadow:0 0 0 0 rgba(46,107,94,.32),var(--sh-2);}50%{box-shadow:0 0 0 12px rgba(46,107,94,0),var(--sh-2);}}
.float-bar{
  position:fixed;left:16px;right:16px;bottom:16px;z-index:900;display:flex;gap:10px;
  opacity:0;visibility:hidden;transform:translateY(14px);transition:all .3s var(--ease);
  padding-bottom:env(safe-area-inset-bottom,0);
}
.float-bar.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-bar a{
  flex:1;height:52px;border-radius:var(--r-md);display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;box-shadow:var(--sh-2);
}
.float-bar a.main{background:var(--c-primary);color:#fff;}
.float-bar a.sub{background:#fff;color:var(--c-primary);border:1px solid var(--c-line);}
/* ===== 响应式 ===== */
@media screen and (min-width:640px){
  h1{font-size:34px;}
  h2{font-size:26px;}
  .hero h1{font-size:34px;}
  .hero-cta{flex-direction:row;flex-wrap:wrap;}
  .hero-stats{grid-template-columns:repeat(4,1fr);}
  .feature-list{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .night-stats{grid-template-columns:repeat(4,1fr);}
  .quote-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
}
@media screen and (min-width:1024px){
  h1{font-size:42px;}
  h2{font-size:30px;}
  h3{font-size:22px;}
  body{font-size:17px;}
  .section{padding:96px 0;}
  .section-tight{padding:72px 0;}
  .hero{padding-top:72px;}
  .hero-grid{grid-template-columns:1fr 1fr;gap:var(--sp-8);}
  .hero h1{font-size:42px;}
  .hero-sub{font-size:17px;}
  .container{padding:0 32px;}
  .feature-item{grid-template-columns:190px 1fr;gap:var(--sp-5);align-items:start;}
  .demo-row{grid-template-columns:5fr 7fr;gap:var(--sp-8);padding:var(--sp-7) 0;}
  .demo-row.is-reverse .demo-media{order:2;}
  .demo-row.is-reverse .demo-body{order:1;}
  .demo-row.is-ratio-7{grid-template-columns:7fr 5fr;}
  .price-grid{grid-template-columns:2fr 1fr;}
  .faq-grid{grid-template-columns:1.1fr .9fr;gap:var(--sp-5) var(--sp-6);}
  .news-grid{grid-template-columns:repeat(3,1fr);}
  .cta-section{padding:96px 0;}
  .cta-grid{grid-template-columns:7fr 5fr;gap:var(--sp-8);}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:var(--sp-7);}
  .float-cta{display:flex;}
  .float-bar{display:none;}
  .anchor-tags{display:flex;}
}
@media screen and (min-width:1200px){
  .cta-form{padding:var(--sp-6);}
}
@media screen and (max-width:1023px){
  .topbar-phone{display:none;}
  .nav-toggle{display:inline-flex;}
  .search-toggle{display:none;}
  .channelbar-inner{padding-right:0;}
  .channelbar::after{
    content:"";position:fixed;width:0;height:0;
  }
}
@media screen and (max-width:520px){
  .topbar-actions{gap:10px;}
  .brand{font-size:17px;}
  .brand-sub{letter-spacing:.12em;}
  .hero-media img{min-height:240px;}
  .footer-grid{gap:var(--sp-5);}
}

/* roulang page: article */
:root{
  --c-primary:#2E6B5E;
  --c-primary-deep:#1F4E44;
  --c-primary-soft:#E4EFEA;
  --c-accent:#D97941;
  --c-accent-soft:#FBEDE2;
  --c-bg:#F6F7F4;
  --c-surface:#FFFFFF;
  --c-night:#16231F;
  --c-ink:#16231F;
  --c-body:#3A4642;
  --c-muted:#6E7A75;
  --c-line:#E2E6DF;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(22,35,31,.05),0 6px 18px -10px rgba(22,35,31,.16);
  --sh-2:0 14px 34px -18px rgba(22,35,31,.28);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px;
  --sp-6:32px; --sp-7:48px; --sp-8:72px; --sp-9:96px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-serif:"Songti SC","Noto Serif SC","Source Han Serif SC",Georgia,serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-body);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease);}
a:hover{color:var(--c-primary-deep);}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 1.15em;}
h1,h2,h3,h4,h5{margin:0;color:var(--c-ink);font-weight:700;line-height:1.32;}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container{padding:0 32px;}}

/* ===== 顶部品牌行 ===== */
.site-header{position:sticky;top:0;z-index:800;}
.brandbar{background:var(--c-surface);border-bottom:1px solid var(--c-line);transition:box-shadow .24s var(--ease);}
.site-header.is-scrolled .brandbar{box-shadow:var(--sh-1);}
.brandbar-inner{display:flex;align-items:center;gap:16px;height:56px;}
@media (min-width:1024px){.brandbar-inner{height:68px;gap:28px;}}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--c-ink);letter-spacing:.5px;}
.brand:hover{color:var(--c-primary);}
.brand-mark{width:28px;height:28px;min-height:26px;color:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;flex:none;}
.brand-mark svg{width:100%;height:100%;}
.header-search{display:none;flex:1;max-width:320px;position:relative;}
@media (min-width:1024px){.header-search{display:block;margin-left:auto;}}
.header-search input{
  width:100%;height:42px;border:1px solid var(--c-line);background:var(--c-bg);
  border-radius:var(--r-pill);padding:0 44px 0 16px;font-size:14.5px;transition:border-color .2s var(--ease),background-color .2s var(--ease);
}
.header-search input::placeholder{color:var(--c-muted);}
.header-search input:focus{outline:none;border-color:var(--c-primary);background:var(--c-surface);box-shadow:0 0 0 3px var(--c-primary-soft);}
.header-search button{position:absolute;right:6px;top:50%;transform:translateY(-50%);width:32px;height:32px;border-radius:50%;color:var(--c-muted);display:flex;align-items:center;justify-content:center;}
.header-search button:hover{color:var(--c-primary);background:var(--c-primary-soft);}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
@media (min-width:1024px){.header-actions{margin-left:0;}}
.header-phone{display:none;align-items:center;gap:6px;font-size:14.5px;color:var(--c-body);font-weight:600;}
.header-phone i{color:var(--c-accent);}
.header-phone:hover{color:var(--c-primary);}
@media (min-width:1024px){.header-phone{display:inline-flex;}}
.menu-toggle{display:none;width:44px;height:44px;border-radius:10px;color:var(--c-ink);align-items:center;justify-content:center;font-size:18px;border:1px solid var(--c-line);}
.menu-toggle:hover{background:var(--c-primary-soft);color:var(--c-primary);}
@media (max-width:1023px){.menu-toggle{display:inline-flex;}}

/* ===== 频道行 ===== */
.channelbar{background:var(--c-bg);border-bottom:1px solid var(--c-line);}
.channelbar-inner{display:flex;align-items:center;gap:28px;height:52px;overflow-x:auto;scroll-snap-type:x proximity;-webkit-overflow-scrolling:touch;scrollbar-width:none;}
.channelbar-inner::-webkit-scrollbar{display:none;}
.channel{position:relative;flex:none;font-size:15px;color:var(--c-body);padding:6px 10px;border-radius:var(--r-pill);scroll-snap-align:start;white-space:nowrap;}
.channel:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.channel.is-active{color:var(--c-primary);font-weight:600;}
.channel.is-active::after{content:"";position:absolute;left:10px;right:10px;bottom:-9px;height:3px;background:var(--c-primary);border-radius:3px;}
.anchor-tags{display:none;margin-left:auto;gap:16px;}
@media (min-width:1200px){.anchor-tags{display:flex;}}
.anchor-tags a{font-size:13.5px;color:var(--c-muted);}
.anchor-tags a:hover{color:var(--c-primary);}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:13px 26px;border-radius:10px;font-size:15.5px;font-weight:600;
  border:1px solid transparent;transition:all .22s var(--ease);white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-primary:active{transform:none;box-shadow:none;}
.btn-outline{background:transparent;border-color:var(--c-line);color:var(--c-primary);}
.btn-outline:hover{background:var(--c-primary-soft);border-color:var(--c-primary);color:var(--c-primary-deep);}
.btn-sm{min-height:38px;padding:9px 18px;font-size:14px;}
.btn:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}

/* ===== 文章头部 ===== */
.article-hero{position:relative;overflow:hidden;background:var(--c-bg);border-bottom:1px solid var(--c-line);padding:28px 0 40px;}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.2;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(246,247,244,.6) 0%,rgba(246,247,244,.96) 70%,var(--c-bg) 100%);
}
.article-hero-inner{position:relative;z-index:2;max-width:900px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);margin-bottom:12px;}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--c-body);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:60vw;}
.article-title{font-family:var(--font-serif);font-size:30px;line-height:1.24;letter-spacing:.3px;color:var(--c-ink);margin:0 0 18px;}
@media (min-width:1024px){.article-title{font-size:40px;line-height:1.2;}}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:14px;color:var(--c-muted);}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);background:var(--c-primary-soft);color:var(--c-primary);font-size:13px;font-weight:600;}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--c-line);}

/* ===== 正文布局 ===== */
.article-section{padding:48px 0 72px;}
.article-layout{display:grid;grid-template-columns:1fr;gap:40px;}
@media (min-width:1200px){
  .article-layout{grid-template-columns:300px minmax(0,1fr);gap:56px;}
}
.article-side{order:2;}
@media (min-width:1200px){.article-side{order:1;}}
.side-sticky{position:static;}
@media (min-width:1200px){.side-sticky{position:sticky;top:96px;}}
.toc-card,.side-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);padding:20px;box-shadow:var(--sh-1);margin-bottom:20px;}
.side-card-title{font-size:14px;font-weight:700;color:var(--c-ink);margin:0 0 14px;letter-spacing:.4px;}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-link{display:block;font-size:14px;line-height:1.6;color:var(--c-body);padding:7px 10px;border-left:2px solid transparent;border-radius:0 8px 8px 0;}
.toc-link:hover{background:var(--c-primary-soft);color:var(--c-primary);border-left-color:var(--c-primary);}
.toc-link.is-current{color:var(--c-primary);border-left-color:var(--c-primary);background:var(--c-primary-soft);font-weight:600;}
.toc-empty{font-size:13.5px;color:var(--c-muted);}
.reco-list{display:flex;flex-direction:column;gap:12px;}
.reco-item{display:block;font-size:14px;line-height:1.6;color:var(--c-body);padding-bottom:12px;border-bottom:1px dashed var(--c-line);}
.reco-item:last-child{border-bottom:0;padding-bottom:0;}
.reco-item:hover{color:var(--c-primary);}

.article-main{order:1;min-width:0;}
@media (min-width:1200px){.article-main{order:2;}}

/* 正文排版 */
.prose{max-width:780px;font-size:17px;line-height:1.85;color:var(--c-body);}
.prose > p:first-of-type{font-size:17.5px;color:#2F3B37;}
.prose h2{font-size:24px;line-height:1.32;margin:40px 0 16px;padding-left:14px;position:relative;}
.prose h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:3px;background:var(--c-primary);}
@media (min-width:1024px){.prose h2{font-size:28px;}}
.prose h3{font-size:19px;line-height:1.45;margin:28px 0 12px;color:var(--c-ink);}
@media (min-width:1024px){.prose h3{font-size:21px;}}
.prose h4{font-size:17px;margin:24px 0 10px;color:var(--c-ink);}
.prose p{margin:0 0 1.15em;}
.prose a{color:var(--c-primary);text-decoration:underline;text-underline-offset:4px;}
.prose a:hover{color:var(--c-accent);text-decoration-thickness:2px;}
.prose strong{color:var(--c-ink);}
.prose ul,.prose ol{margin:0 0 1.3em;padding-left:0;}
.prose ul > li{position:relative;padding-left:22px;margin-bottom:10px;}
.prose ul > li::before{content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;background:var(--c-primary);border-radius:2px;}
.prose ol{counter-reset:li;}
.prose ol > li{position:relative;padding-left:30px;margin-bottom:10px;counter-increment:li;}
.prose ol > li::before{content:counter(li);position:absolute;left:0;top:.18em;width:21px;height:21px;border-radius:50%;background:var(--c-primary-soft);color:var(--c-primary);font-size:12.5px;font-weight:700;display:flex;align-items:center;justify-content:center;}
.prose blockquote{
  margin:24px 0;padding:18px 22px;background:var(--c-primary-soft);
  border-left:4px solid var(--c-primary);border-radius:0 var(--r-sm) var(--r-sm) 0;color:#2F3B37;
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose img{border-radius:12px;margin:24px auto;}
.prose figure{margin:24px 0;}
.prose figcaption{text-align:center;font-size:13px;color:var(--c-muted);line-height:1.6;margin-top:10px;}
.prose table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15.5px;}
.prose table th{background:var(--c-primary-soft);color:var(--c-ink);font-weight:600;text-align:left;padding:14px 16px;border-bottom:1px solid var(--c-line);}
.prose table td{padding:14px 16px;border-bottom:1px solid var(--c-line);line-height:1.7;}
.prose table tr:hover td{background:#FAFBF9;}
.prose table td:first-child{font-weight:600;color:var(--c-ink);}
.prose code{background:var(--c-primary-soft);color:var(--c-primary-deep);padding:2px 6px;border-radius:6px;font-size:.92em;}
.prose pre{background:var(--c-night);color:#E8EFEB;padding:18px 20px;border-radius:12px;overflow-x:auto;font-size:14.5px;line-height:1.7;margin:24px 0;}
.prose pre code{background:none;color:inherit;padding:0;}
.prose hr{border:0;border-top:1px solid var(--c-line);margin:36px 0;}

.empty-state{
  max-width:780px;min-height:280px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);padding:48px 24px;box-shadow:var(--sh-1);
}
.empty-state i{font-size:34px;color:var(--c-primary);opacity:.75;}
.empty-state p{margin:0;color:var(--c-muted);}

/* 标签与分享 */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:44px 0 0;max-width:780px;}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);background:var(--c-surface);border:1px solid var(--c-line);font-size:13.5px;color:var(--c-body);}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft);}
.share-row{display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin:24px 0 0;padding-top:22px;border-top:1px solid var(--c-line);max-width:780px;}
.share-row span{font-size:13.5px;color:var(--c-muted);}
.share-btn{width:38px;height:38px;border-radius:50%;border:1px solid var(--c-line);color:var(--c-muted);display:inline-flex;align-items:center;justify-content:center;background:var(--c-surface);}
.share-btn:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-primary-soft);}

/* 上一篇/下一篇 */
.post-nav{display:grid;grid-template-columns:1fr;gap:14px;margin:48px 0 0;max-width:780px;}
@media (min-width:768px){.post-nav{grid-template-columns:1fr 1fr;}}
.post-nav-item{display:block;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);padding:18px 20px;box-shadow:var(--sh-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);}
.post-nav-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-primary);}
.post-nav-label{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);margin-bottom:8px;}
.post-nav-label i{color:var(--c-primary);}
.post-nav-item strong{display:block;font-size:15.5px;line-height:1.55;color:var(--c-ink);font-weight:600;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;}
.post-nav-item:hover strong{color:var(--c-primary);}
.post-nav-item.right .post-nav-label{justify-content:flex-end;}

/* 相关推荐 */
.related{margin-top:64px;}
.related h2{font-size:22px;margin:0 0 22px;}
@media (min-width:1024px){.related h2{font-size:26px;}}
.related-grid{display:grid;grid-template-columns:1fr;gap:22px;}
@media (min-width:640px){.related-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.related-grid{grid-template-columns:repeat(3,1fr);}}
.info-card{display:block;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);}
.info-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-primary);}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-soft);}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.info-card:hover .card-cover img{transform:scale(1.04);}
.card-cover .badge{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.92);}
.card-body{padding:18px 20px 20px;}
.card-title{font-size:16.5px;font-weight:600;line-height:1.55;color:var(--c-ink);overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;min-height:3.1em;}
.info-card:hover .card-title{color:var(--c-primary);}
.card-desc{font-size:14px;line-height:1.7;color:var(--c-muted);margin:8px 0 0;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;}
.card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:16px;padding-top:14px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-muted);}
.card-foot i{color:var(--c-primary);}
.back-cta{margin-top:40px;max-width:780px;}

/* FAQ */
.faq-section{padding:72px 0;background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.section-head{max-width:700px;margin-bottom:36px;}
.section-head h2{font-size:26px;margin:0 0 12px;}
@media (min-width:1024px){.section-head h2{font-size:30px;}}
.section-head p{font-size:16px;color:var(--c-muted);margin:0;}
.faq-grid{display:grid;grid-template-columns:1fr;gap:0 40px;}
@media (min-width:1024px){.faq-grid{grid-template-columns:1fr 1fr;align-items:start;}}
.accordion{background:transparent;border:0;margin:0;}
.accordion .accordion-item{
  border:1px solid var(--c-line);border-radius:var(--r-md);background:var(--c-surface);
  margin-bottom:12px;overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.accordion .accordion-item:hover{box-shadow:var(--sh-1);}
.accordion .accordion-item.is-active{border-color:var(--c-primary);}
.accordion .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:17px;font-weight:600;color:var(--c-ink);padding:18px 20px;background:transparent;border:0;line-height:1.5;
}
.accordion .accordion-title::before{display:none;content:none;}
.accordion .accordion-title::after{
  content:"+";flex:none;font-size:22px;font-weight:400;color:var(--c-primary);line-height:1;
  transition:transform .24s var(--ease);
}
.accordion .accordion-item.is-active .accordion-title::after{transform:rotate(45deg);}
.accordion .accordion-title:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.accordion .accordion-content{
  display:none;padding:0 20px 20px;border:0!important;background:transparent;
  font-size:16px;line-height:1.85;color:var(--c-body);
}
.accordion .accordion-content.is-open{display:block;}

/* CTA */
.cta-section{padding:72px 0;background:var(--c-primary-soft);}
@media (min-width:1024px){.cta-section{padding:96px 0;}}
.cta-inner{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
@media (min-width:1024px){.cta-inner{grid-template-columns:1.3fr 1fr;gap:56px;}}
.cta-inner h2{font-size:26px;margin:0 0 14px;}
@media (min-width:1024px){.cta-inner h2{font-size:32px;}}
.cta-inner p{margin:0 0 10px;font-size:16px;color:var(--c-body);max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:24px;}
.cta-side{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-1);}
.cta-side h3{font-size:18px;margin:0 0 16px;}
.cta-side ul{display:flex;flex-direction:column;gap:12px;}
.cta-side li{display:flex;gap:10px;font-size:15px;line-height:1.7;color:var(--c-body);}
.cta-side i{color:var(--c-primary);margin-top:5px;font-size:14px;}
.cta-note{margin-top:18px;padding-top:16px;border-top:1px dashed var(--c-line);font-size:13.5px;color:var(--c-muted);line-height:1.7;}

/* 浮动 CTA */
.float-cta{position:fixed;right:24px;bottom:28px;z-index:900;display:flex;flex-direction:column;gap:12px;opacity:0;transform:translateY(10px);pointer-events:none;transition:opacity .3s var(--ease),transform .3s var(--ease);}
.float-cta.is-visible{opacity:1;transform:none;pointer-events:auto;}
.float-btn{position:relative;width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px;box-shadow:var(--sh-1);transition:all .22s var(--ease);}
.float-btn-main{background:var(--c-primary);color:#fff;}
.float-btn-main:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px);}
.float-btn-sub{background:var(--c-surface);color:var(--c-primary);border:1px solid var(--c-line);}
.float-btn-sub:hover{border-color:var(--c-primary);background:var(--c-primary-soft);}
.float-btn::after{content:attr(data-tip);position:absolute;right:calc(100% + 12px);top:50%;transform:translateY(-50%);background:var(--c-night);color:#fff;font-size:13px;padding:6px 10px;border-radius:8px;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .2s var(--ease);}
.float-btn:hover::after{opacity:1;}
.mobile-cta{
  position:fixed;left:16px;right:16px;bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:900;
  display:flex;gap:10px;opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .3s var(--ease),transform .3s var(--ease);
}
.mobile-cta.is-visible{opacity:1;transform:none;pointer-events:auto;}
.m-cta-main{flex:2;height:52px;border-radius:14px;background:var(--c-primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:15.5px;}
.m-cta-main:hover{background:var(--c-primary-deep);color:#fff;}
.m-cta-sub{flex:1;height:52px;border-radius:14px;background:var(--c-surface);border:1px solid var(--c-line);color:var(--c-primary);display:flex;align-items:center;justify-content:center;gap:6px;font-size:14.5px;}
.m-cta-sub:hover{border-color:var(--c-primary);background:var(--c-primary-soft);}
@media (max-width:1023px){.float-cta{display:none;}}
@media (min-width:1024px){.mobile-cta{display:none;}}

/* 移动抽屉 */
.off-canvas{background:var(--c-surface);border-right:1px solid var(--c-line);width:280px;overflow-y:auto;}
.off-canvas .drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--c-line);}
.drawer-title{font-size:15px;font-weight:700;color:var(--c-ink);}
.drawer-close{width:36px;height:36px;border-radius:10px;color:var(--c-muted);display:flex;align-items:center;justify-content:center;}
.drawer-close:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.drawer-links{padding:14px 12px;display:flex;flex-direction:column;gap:2px;}
.drawer-links a{padding:12px 14px;border-radius:10px;font-size:15.5px;color:var(--c-body);}
.drawer-links a:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.drawer-links a.is-active{color:var(--c-primary);font-weight:600;background:var(--c-primary-soft);}
.drawer-foot{padding:20px;border-top:1px solid var(--c-line);}
.drawer-foot p{font-size:13.5px;color:var(--c-muted);margin:0 0 14px;}

/* 页脚 */
.site-footer{background:var(--c-night);color:rgba(255,255,255,.78);padding:64px 0 24px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;}
@media (min-width:768px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}}
.site-footer .brand{color:#fff;font-size:19px;font-weight:700;display:inline-flex;align-items:center;gap:10px;}
.site-footer .brand:hover{color:var(--c-accent);}
.site-footer .brand-mark{color:var(--c-accent);}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);margin:16px 0;max-width:340px;}
.footer-contact{display:flex;flex-direction:column;gap:8px;font-size:14px;color:rgba(255,255,255,.66);}
.footer-contact i{color:var(--c-accent);margin-right:8px;width:16px;}
.site-footer h4{color:#fff;font-size:16px;font-weight:600;margin:0 0 16px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:rgba(255,255,255,.72);font-size:14.5px;}
.footer-links a:hover{color:var(--c-accent);}
.qr-box{width:96px;height:96px;border-radius:8px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);display:flex;align-items:center;justify-content:center;text-align:center;font-size:12px;line-height:1.6;color:rgba(255,255,255,.6);}
.footer-bottom{margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:13px;color:rgba(255,255,255,.5);}
.footer-bottom a{color:rgba(255,255,255,.6);}
.footer-bottom a:hover{color:var(--c-accent);}
.footer-bottom .sep{margin:0 8px;opacity:.4;}

@media (max-width:639px){
  .article-hero{padding:20px 0 32px;}
  .article-section{padding:36px 0 56px;}
  .faq-section,.cta-section{padding:56px 0;}
  .related{margin-top:48px;}
}

/* roulang page: category1 */
:root{
  --c-primary:#2E6B5E;
  --c-primary-deep:#1F4E44;
  --c-primary-soft:#E4EFEA;
  --c-accent:#D97941;
  --c-accent-soft:#FBEDE2;
  --c-bg:#F6F7F4;
  --c-surface:#FFFFFF;
  --c-night:#16231F;
  --c-line:#E2E6DF;
  --c-ink:#16231F;
  --c-body:#3A4642;
  --c-muted:#6E7A75;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(22,35,31,.05),0 6px 18px -10px rgba(22,35,31,.16);
  --sh-2:0 14px 34px -18px rgba(22,35,31,.28);
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;
  --sp-6:32px;--sp-7:48px;--sp-8:72px;--sp-9:96px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-body);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease);}
a:hover{color:var(--c-primary-deep);}
h1,h2,h3,h4{color:var(--c-ink);font-family:inherit;font-weight:700;margin:0 0 var(--sp-4);letter-spacing:.01em;}
h1{font-size:42px;line-height:1.2;}
h2{font-size:30px;line-height:1.32;}
h3{font-size:22px;line-height:1.45;font-weight:600;}
h4{font-size:18px;line-height:1.5;font-weight:600;}
p{margin:0 0 1.15em;}
ul,ol{margin:0 0 1.15em;padding-left:1.2em;}
li{margin-bottom:var(--sp-2);}
button{font:inherit;cursor:pointer;}
input,textarea,select{font:inherit;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container{padding:0 32px;}}

/* ============ 品牌行 ============ */
.site-header{position:sticky;top:0;z-index:120;background:var(--c-surface);border-bottom:1px solid var(--c-line);transition:box-shadow .22s var(--ease);}
.site-header.is-stuck{box-shadow:var(--sh-1);}
.brandbar{height:68px;display:flex;align-items:center;}
.brandbar-inner{display:flex;align-items:center;justify-content:space-between;gap:var(--sp-5);width:100%;}
.brand{display:inline-flex;align-items:center;gap:var(--sp-3);color:var(--c-ink);font-size:20px;font-weight:700;letter-spacing:.02em;}
.brand:hover{color:var(--c-primary);}
.brand-mark{display:inline-flex;width:32px;height:32px;min-height:26px;color:var(--c-primary);align-items:center;justify-content:center;}
.brand-mark svg{width:100%;height:100%;display:block;}
.brandbar-actions{display:flex;align-items:center;gap:var(--sp-4);}
.search-wrap{display:flex;align-items:center;gap:var(--sp-2);}
.search-box{width:0;overflow:hidden;transition:width .24s var(--ease);}
.search-box.is-open{width:230px;}
.search-box input{
  width:100%;height:40px;border:1px solid var(--c-line);border-radius:var(--r-pill);
  padding:0 16px;background:var(--c-bg);color:var(--c-body);font-size:14px;
}
.search-box input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(46,107,94,.14);background:#fff;}
.icon-btn{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--c-line);background:var(--c-surface);border-radius:var(--r-pill);
  color:var(--c-body);transition:all .2s var(--ease);
}
.icon-btn:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft);}
.hotline{display:inline-flex;align-items:center;gap:var(--sp-2);font-size:15px;color:var(--c-body);font-weight:600;letter-spacing:.02em;}
.hotline i{color:var(--c-accent);}
.hotline:hover{color:var(--c-primary);}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--c-line);background:var(--c-surface);border-radius:10px;color:var(--c-ink);align-items:center;justify-content:center;font-size:18px;}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:var(--sp-2);
  padding:14px 26px;min-height:48px;border-radius:10px;border:1px solid transparent;
  font-size:16px;font-weight:600;line-height:1.2;text-align:center;
  transition:background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-primary:active{transform:none;box-shadow:none;}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-soft);border-color:var(--c-primary);color:var(--c-primary-deep);}
.btn-ghost:active{transform:none;}
.btn-sm{padding:10px 20px;min-height:44px;font-size:14px;}
.btn-light{background:#fff;color:var(--c-primary);}
.btn-light:hover{background:var(--c-primary-soft);color:var(--c-primary-deep);transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
.link-inline{color:var(--c-primary);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;}
.link-inline:hover{color:var(--c-accent);text-decoration-thickness:2px;}

/* ============ 频道行 ============ */
.channelbar{background:var(--c-bg);border-top:1px solid var(--c-line);}
.channelbar-inner{display:flex;align-items:center;gap:var(--sp-5);height:52px;overflow-x:auto;scrollbar-width:none;}
.channelbar-inner::-webkit-scrollbar{display:none;}
.channel{
  position:relative;display:inline-flex;align-items:center;height:36px;padding:0 14px;
  border-radius:var(--r-pill);font-size:15px;color:var(--c-body);white-space:nowrap;flex:0 0 auto;
}
.channel:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.channel.is-active{color:var(--c-primary);font-weight:600;}
.channel.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:-8px;height:3px;border-radius:2px;background:var(--c-primary);}
.anchor-tags{display:inline-flex;align-items:center;gap:var(--sp-4);margin-left:auto;padding-left:var(--sp-5);border-left:1px solid var(--c-line);}
.anchor-tags a{font-size:13px;color:var(--c-muted);white-space:nowrap;}
.anchor-tags a:hover{color:var(--c-primary);}

/* ============ 移动面板 ============ */
.mp-mask{position:fixed;inset:0;background:rgba(22,35,31,.42);opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s;z-index:200;}
.mp-mask.is-open{opacity:1;visibility:visible;}
.mobile-panel{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);background:var(--c-surface);
  transform:translateX(102%);transition:transform .28s var(--ease);z-index:210;
  padding:var(--sp-5) var(--sp-5) var(--sp-7);overflow-y:auto;box-shadow:var(--sh-2);
}
.mobile-panel.is-open{transform:translateX(0);}
.mp-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--sp-5);}
.mp-head span{font-size:15px;font-weight:600;color:var(--c-ink);}
.mp-close{width:44px;height:44px;border:1px solid var(--c-line);background:var(--c-surface);border-radius:10px;font-size:22px;line-height:1;color:var(--c-body);}
.mp-close:hover{border-color:var(--c-primary);color:var(--c-primary);}
.mp-link{display:block;padding:14px 0;border-bottom:1px solid var(--c-line);font-size:16px;color:var(--c-body);}
.mp-link:hover{color:var(--c-primary);}
.mp-link.is-active{color:var(--c-primary);font-weight:600;}
.mp-cta{width:100%;margin-top:var(--sp-6);}
.mp-anchors{display:flex;flex-wrap:wrap;gap:var(--sp-2);margin-top:var(--sp-5);}
.mp-anchors a{font-size:13px;padding:6px 12px;border-radius:var(--r-pill);background:var(--c-primary-soft);color:var(--c-primary);}

/* ============ 面包屑 ============ */
.breadcrumb{font-size:13px;color:var(--c-muted);margin-bottom:var(--sp-3);display:flex;flex-wrap:wrap;align-items:center;gap:var(--sp-2);}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .current{color:var(--c-body);}

/* ============ Hero（分类页顶部） ============ */
.hero-cat{background:linear-gradient(180deg,var(--c-surface) 0%,var(--c-bg) 100%);padding:var(--sp-7) 0 var(--sp-9);border-bottom:1px solid var(--c-line);}
.hero-grid{display:grid;grid-template-columns:1fr;gap:var(--sp-7);align-items:center;margin-top:var(--sp-4);}
.hero-title{font-size:42px;line-height:1.2;margin-bottom:var(--sp-4);}
.hero-title .hl{color:var(--c-primary);}
.hero-sub{font-size:18px;color:var(--c-body);max-width:34em;margin-bottom:var(--sp-6);}
.hero-cta{display:flex;flex-wrap:wrap;gap:var(--sp-4);margin-bottom:var(--sp-6);}
.hero-badges{display:flex;flex-wrap:wrap;gap:var(--sp-2);}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:var(--r-pill);background:var(--c-primary-soft);color:var(--c-primary);
  font-size:13px;font-weight:500;line-height:1;
}
.badge-accent{background:var(--c-accent-soft);color:var(--c-accent);}
.badge-line{background:transparent;border:1px solid var(--c-line);color:var(--c-muted);}
.hero-media{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--sh-1);background:var(--c-primary-soft);}
.hero-media img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(46,107,94,.10) 0%,rgba(246,247,244,.62) 100%);pointer-events:none;}
.hero-media-cap{position:absolute;left:20px;bottom:18px;right:20px;z-index:2;font-size:13px;color:var(--c-body);background:rgba(255,255,255,.82);border-radius:var(--r-sm);padding:8px 12px;}
.hero-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--sp-5);margin-top:var(--sp-8);padding-top:var(--sp-6);border-top:1px solid var(--c-line);}
.stat-num{font-size:28px;font-weight:700;color:var(--c-accent);line-height:1.2;}
.stat-label{font-size:14px;color:var(--c-muted);margin-top:var(--sp-1);}

/* ============ 简介条 ============ */
.intro-strip{background:var(--c-primary-soft);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);padding:var(--sp-8) 0;}
.intro-grid{display:grid;grid-template-columns:1fr;gap:var(--sp-6);align-items:start;}
.intro-lead{font-size:17px;color:var(--c-body);margin:0;max-width:38em;}
.intro-badges{display:flex;flex-wrap:wrap;gap:var(--sp-2);}
.intro-badges .badge{background:#fff;color:var(--c-primary);box-shadow:var(--sh-1);}

/* ============ 通用板块 ============ */
.section{padding:var(--sp-9) 0;}
.section--soft{background:var(--c-primary-soft);}
.section--night{background:var(--c-night);color:rgba(255,255,255,.82);}
.section--night h2,.section--night h3,.section--night h4{color:#fff;}
.section--night .eyebrow{background:rgba(255,255,255,.10);color:#E9D6C6;}
.section-head{max-width:760px;margin-bottom:var(--sp-7);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:500;
  color:var(--c-primary);background:var(--c-primary-soft);
  padding:5px 14px;border-radius:var(--r-pill);margin-bottom:var(--sp-4);letter-spacing:.04em;
}
.section-head p{margin:0;color:var(--c-muted);font-size:16px;}
.section--night .section-head p{color:rgba(255,255,255,.66);}

/* ============ 服务要点（错位排列） ============ */
.point-row{display:grid;grid-template-columns:1fr;gap:var(--sp-4);padding:var(--sp-6) 0;border-bottom:1px solid var(--c-line);}
.point-row:first-of-type{border-top:1px solid var(--c-line);}
.point-title{display:flex;align-items:flex-start;gap:var(--sp-3);}
.point-title i{color:var(--c-primary);font-size:18px;margin-top:6px;}
.point-title h3{margin:0;font-size:19px;}
.point-body{margin:0;color:var(--c-body);max-width:40em;}
.point-index{font-size:14px;color:var(--c-accent);font-weight:600;letter-spacing:.08em;display:block;margin-bottom:6px;}

/* ============ 能力矩阵编号卡 ============ */
.cap-grid{margin-left:-14px;margin-right:-14px;}
.cap-grid > .cell{padding:14px;}
.cap-card{
  position:relative;height:100%;background:var(--c-surface);border:1px solid var(--c-line);
  border-left:2px solid var(--c-primary);border-radius:var(--r-md);
  padding:var(--sp-6) var(--sp-5) var(--sp-5);box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.cap-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-primary);}
.cap-num{position:absolute;top:16px;right:20px;font-size:20px;font-weight:700;color:var(--c-accent);letter-spacing:.04em;}
.cap-icon{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:12px;background:var(--c-primary-soft);color:var(--c-primary);font-size:17px;margin-bottom:var(--sp-4);}
.cap-card h3{font-size:19px;margin-bottom:var(--sp-3);}
.cap-card p{margin:0;font-size:15.5px;color:var(--c-body);}

/* ============ 流程步骤 ============ */
.process{display:grid;grid-template-columns:1fr;gap:var(--sp-5);counter-reset:step;}
.step{position:relative;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);padding:var(--sp-5) var(--sp-5) var(--sp-5) 64px;box-shadow:var(--sh-1);}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;left:20px;top:22px;font-size:14px;font-weight:700;color:var(--c-accent);letter-spacing:.06em;
}
.step h4{margin:0 0 6px;font-size:17px;}
.step p{margin:0;font-size:15px;color:var(--c-muted);}
.process-note{margin-top:var(--sp-5);font-size:13.5px;color:var(--c-muted);}

/* ============ 交错图文 ============ */
.duo{display:grid;grid-template-columns:1fr;gap:var(--sp-7);align-items:center;padding:var(--sp-7) 0;border-bottom:1px solid var(--c-line);}
.duo:last-of-type{border-bottom:none;}
.duo-media{border-radius:var(--r-md);overflow:hidden;border:1px solid var(--c-line);background:var(--c-primary-soft);position:relative;}
.duo-media img{width:100%;aspect-ratio:3/2;object-fit:cover;}
.duo-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(46,107,94,.08),rgba(246,247,244,.34));}
.duo-body h3{font-size:22px;margin-bottom:var(--sp-3);}
.duo-body p{color:var(--c-body);}
.duo-list{list-style:none;padding:0;margin:var(--sp-4) 0 var(--sp-5);}
.duo-list li{position:relative;padding-left:20px;font-size:15.5px;color:var(--c-body);}
.duo-list li::before{content:"";position:absolute;left:0;top:12px;width:7px;height:7px;border-radius:2px;background:var(--c-primary);}

/* ============ 数据带 ============ */
.metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--sp-6) var(--sp-5);margin-bottom:var(--sp-7);}
.metric-num{font-size:32px;font-weight:700;color:var(--c-accent);line-height:1.1;}
.metric-label{font-size:14px;color:rgba(255,255,255,.66);margin-top:var(--sp-2);}
.metric-source{font-size:13px;color:rgba(255,255,255,.5);border-top:1px solid rgba(255,255,255,.12);padding-top:var(--sp-4);margin-bottom:var(--sp-7);}
.quote-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:var(--r-md);padding:var(--sp-5);display:flex;gap:var(--sp-4);align-items:flex-start;}
.quote-avatar{flex:0 0 auto;width:44px;height:44px;border-radius:50%;background:var(--c-primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:17px;}
.quote-card p{margin:0 0 8px;color:rgba(255,255,255,.86);font-size:15.5px;}
.quote-card span{font-size:13px;color:rgba(255,255,255,.55);}

/* ============ FAQ ============ */
.faq-grid{margin-left:-10px;margin-right:-10px;}
.faq-grid > .cell{padding:10px;}
.qa-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);margin-bottom:12px;overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);}
.qa-item:hover{border-color:#CFD8D2;}
.qa-item.open{border-color:var(--c-primary);box-shadow:var(--sh-1);}
.qa-q{
  width:100%;display:flex;align-items:flex-start;gap:var(--sp-3);text-align:left;
  background:transparent;border:none;padding:20px 20px;color:var(--c-ink);
  font-size:17px;font-weight:600;line-height:1.5;
}
.qa-q:focus-visible{outline:2px solid var(--c-primary);outline-offset:-2px;}
.qa-idx{color:var(--c-accent);font-size:14px;font-weight:700;letter-spacing:.06em;flex:0 0 auto;padding-top:3px;}
.qa-text{flex:1 1 auto;}
.qa-plus{flex:0 0 auto;color:var(--c-primary);font-size:16px;transition:transform .24s var(--ease);padding-top:3px;}
.qa-item.open .qa-plus{transform:rotate(45deg);}
.qa-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease);}
.qa-a-inner{padding:0 20px 22px 46px;font-size:16px;line-height:1.85;color:var(--c-body);}

/* ============ CTA ============ */
.cta-band{background:var(--c-primary-soft);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:var(--sp-8) var(--sp-6);}
.cta-inner{display:grid;grid-template-columns:1fr;gap:var(--sp-6);align-items:center;}
.cta-band h2{margin-bottom:var(--sp-3);}
.cta-band p{color:var(--c-body);margin:0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:var(--sp-4);}
.cta-actions .btn{flex:1 1 200px;}
.cta-note{margin-top:var(--sp-4);font-size:13.5px;color:var(--c-muted);}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-night);color:rgba(255,255,255,.72);padding:var(--sp-9) 0 var(--sp-6);margin-top:var(--sp-9);}
.footer-grid{display:grid;grid-template-columns:1fr;gap:var(--sp-7);}
.site-footer .brand{color:#fff;font-size:19px;}
.site-footer .brand-mark{color:#fff;}
.footer-desc{font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.66);margin:var(--sp-4) 0;}
.footer-contact{display:flex;flex-direction:column;gap:var(--sp-2);font-size:14px;color:rgba(255,255,255,.66);}
.footer-contact i{color:var(--c-accent);width:18px;display:inline-block;}
.site-footer h4{font-size:16px;margin-bottom:var(--sp-4);}
.footer-links{list-style:none;padding:0;margin:0;}
.footer-links li{margin-bottom:var(--sp-3);}
.footer-links a{font-size:14.5px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:var(--c-accent);}
.qr-box{
  width:96px;height:96px;border-radius:var(--r-sm);border:1px dashed rgba(255,255,255,.34);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;line-height:1.5;color:rgba(255,255,255,.62);background:rgba(255,255,255,.04);
}
.footer-bottom{
  margin-top:var(--sp-8);padding-top:var(--sp-5);border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:var(--sp-3);justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.7);}
.footer-bottom a:hover{color:var(--c-accent);}

/* ============ 浮动 CTA ============ */
.float-cta{position:fixed;right:24px;bottom:32px;z-index:900;display:flex;flex-direction:column;gap:12px;transition:transform .3s var(--ease),opacity .3s var(--ease);}
.float-cta.is-hidden{transform:translateY(24px);opacity:0;pointer-events:none;}
.fc-btn{
  position:relative;width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:18px;transition:transform .2s var(--ease),background-color .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease);
}
.fc-main{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);animation:pulse 2.8s var(--ease) infinite;}
.fc-main:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-2px);}
.fc-sub{background:#fff;color:var(--c-primary);border:1px solid var(--c-line);box-shadow:var(--sh-1);}
.fc-sub:hover{border-color:var(--c-primary);background:var(--c-primary-soft);}
.fc-tip{
  position:absolute;right:64px;top:50%;transform:translateY(-50%);white-space:nowrap;
  background:var(--c-night);color:#fff;font-size:13px;padding:6px 12px;border-radius:var(--r-sm);
  opacity:0;visibility:hidden;transition:opacity .2s var(--ease),visibility .2s;
}
.fc-btn:hover .fc-tip,.fc-btn:focus-visible .fc-tip{opacity:1;visibility:visible;}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(46,107,94,.34);}50%{box-shadow:0 0 0 12px rgba(46,107,94,0);}}
.mobile-cta{
  position:fixed;left:16px;right:16px;bottom:calc(16px + env(safe-area-inset-bottom));
  display:none;gap:12px;padding:8px;background:rgba(255,255,255,.94);
  border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--sh-2);
  z-index:900;opacity:0;transform:translateY(12px);transition:opacity .3s var(--ease),transform .3s var(--ease);
}
.mobile-cta.is-visible{opacity:1;transform:translateY(0);}
.mobile-cta.is-hidden{opacity:0;pointer-events:none;transform:translateY(16px);}
.mobile-cta .btn{flex:1 1 0;min-width:0;padding:12px 10px;font-size:15px;}

/* ============ 工具类 ============ */
.mt-6{margin-top:var(--sp-6);}
.mb-0{margin-bottom:0;}
.text-muted{color:var(--c-muted);}
.small{font-size:13.5px;}

/* ============ 响应式 ============ */
@media (min-width:640px){
  .hero-stats{grid-template-columns:repeat(4,1fr);}
  .metric-grid{grid-template-columns:repeat(4,1fr);}
  .process{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
}
@media (min-width:1024px){
  h1,.hero-title{font-size:42px;}
  .hero-cat{padding:var(--sp-8) 0 var(--sp-9);}
  .hero-grid{grid-template-columns:6fr 6fr;gap:var(--sp-8);}
  .intro-grid{grid-template-columns:7fr 5fr;gap:var(--sp-7);}
  .point-row{grid-template-columns:4fr 8fr;gap:var(--sp-7);padding:var(--sp-5) 0;}
  .process{grid-template-columns:repeat(5,1fr);}
  .duo{grid-template-columns:5fr 7fr;gap:var(--sp-8);padding:var(--sp-8) 0;}
  .duo.is-reverse .duo-media{order:2;}
  .duo.is-reverse .duo-body{order:1;}
  .cta-inner{grid-template-columns:7fr 5fr;}
  .footer-grid{grid-template-columns:2fr 1fr 1fr 1fr;gap:var(--sp-6);}
}
@media (max-width:1023px){
  .hotline,.search-wrap{display:none;}
  .nav-toggle{display:inline-flex;}
  .anchor-tags{display:none;}
  .channelbar-inner{height:auto;padding:10px 0;gap:var(--sp-2);}
  .channel.is-active::after{bottom:0;}
}
@media (max-width:767px){
  body{font-size:16.5px;}
  h1,.hero-title{font-size:30px;}
  h2{font-size:24px;}
  h3{font-size:19px;}
  h4{font-size:16.5px;}
  .section{padding:56px 0;}
  .hero-cat{padding:32px 0 56px;}
  .hero-cta{flex-direction:column;}
  .hero-cta .btn{width:100%;}
  .float-cta{display:none;}
  .mobile-cta{display:flex;}
  .cta-band{padding:32px 20px;border-radius:var(--r-md);}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .step{padding:20px 20px 20px 56px;}
  .qa-q{padding:18px 16px;font-size:16px;}
  .qa-a-inner{padding:0 16px 20px 40px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#2E6B5E;
  --c-primary-deep:#1F4E44;
  --c-primary-soft:#E4EFEA;
  --c-accent:#D97941;
  --c-accent-soft:#FBEDE2;
  --c-bg:#F6F7F4;
  --c-surface:#FFFFFF;
  --c-night:#16231F;
  --c-ink:#16231F;
  --c-body:#3A4642;
  --c-muted:#6E7A75;
  --c-line:#E2E6DF;
  --r-sm:8px;--r-md:14px;--r-lg:22px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(22,35,31,.05),0 6px 18px -10px rgba(22,35,31,.16);
  --sh-2:0 14px 34px -18px rgba(22,35,31,.28);
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:72px;--sp-9:96px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:17px;line-height:1.85;color:var(--c-body);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{color:var(--c-ink);margin:0;line-height:1.32;}
h1{font-size:30px;line-height:1.2;font-weight:700;letter-spacing:.2px;}
h2{font-size:24px;font-weight:700;}
h3{font-size:19px;font-weight:600;line-height:1.45;}
h4{font-size:16px;font-weight:600;line-height:1.5;}
p{margin:0 0 1.15em;line-height:1.85;}
p:last-child{margin-bottom:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--c-accent);}
img{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
::selection{background:var(--c-primary-soft);color:var(--c-primary-deep);}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.section{padding:56px 0;}
.section-head{max-width:720px;margin-bottom:var(--sp-6);}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:2px;color:var(--c-primary);background:var(--c-primary-soft);border-radius:var(--r-pill);padding:4px 12px;margin-bottom:var(--sp-4);}
.lead{font-size:17px;color:var(--c-body);}
.muted{color:var(--c-muted);}
.small{font-size:14px;line-height:1.7;}
.text-accent{color:var(--c-accent);}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;font-size:15px;border-radius:10px;padding:14px 26px;
  border:1px solid transparent;cursor:pointer;min-height:44px;
  transition:all .22s var(--ease);text-align:center;
}
.button,.btn{background:transparent;box-shadow:none;}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-soft);border-color:var(--c-primary);color:var(--c-primary-deep);}
.btn-light{background:#fff;color:var(--c-primary-deep);border-color:#fff;}
.btn-light:hover{background:var(--c-primary-soft);color:var(--c-primary-deep);}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
.btn-sm{padding:10px 18px;font-size:14px;min-height:40px;}
.text-link{color:var(--c-primary);border-bottom:1px solid var(--c-primary);padding-bottom:2px;font-weight:600;font-size:15px;}
.text-link:hover{color:var(--c-accent);border-color:var(--c-accent);}

/* ===== 头部 ===== */
.site-header{position:sticky;top:0;z-index:800;transition:box-shadow .22s var(--ease);}
.site-header.is-stuck{box-shadow:var(--sh-1);}
.brandbar{background:var(--c-surface);border-bottom:1px solid var(--c-line);}
.brandbar-inner{display:flex;align-items:center;justify-content:space-between;gap:var(--sp-5);height:56px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);font-weight:700;font-size:18px;letter-spacing:.5px;}
.brand:hover{color:var(--c-primary-deep);}
.brand-mark{width:30px;height:30px;min-height:26px;color:var(--c-primary);display:inline-flex;}
.brand-mark svg{width:100%;height:100%;}
.brandbar-actions{display:flex;align-items:center;gap:var(--sp-4);}
.tel-link{display:none;align-items:center;gap:6px;font-size:14px;color:var(--c-body);}
.tel-link:hover{color:var(--c-primary);}
.search-mini{display:none;align-items:center;gap:8px;border:1px solid var(--c-line);border-radius:var(--r-pill);padding:0 14px;height:40px;background:#fff;transition:all .22s var(--ease);}
.search-mini:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(46,107,94,.14);}
.search-mini i{color:var(--c-muted);font-size:13px;}
.search-mini input{border:0;outline:0;height:38px;width:140px;font-size:14px;background:transparent;color:var(--c-body);}
.brandbar .btn-primary{display:none;}
.menu-toggle{width:44px;height:44px;border:1px solid var(--c-line);background:#fff;border-radius:10px;color:var(--c-ink);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:all .22s var(--ease);}
.menu-toggle:hover{background:var(--c-primary-soft);border-color:var(--c-primary);color:var(--c-primary-deep);}

.channelbar{background:var(--c-bg);border-bottom:1px solid var(--c-line);}
.channelbar-inner{display:flex;align-items:center;gap:8px;height:52px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;scroll-snap-type:x proximity;}
.channelbar-inner::-webkit-scrollbar{display:none;}
.channel{position:relative;display:inline-flex;align-items:center;height:52px;padding:0 12px;font-size:15px;color:var(--c-body);white-space:nowrap;scroll-snap-align:start;border-radius:var(--r-pill);transition:color .22s var(--ease),background .22s var(--ease);}
.channel:hover{color:var(--c-primary-deep);background:var(--c-primary-soft);}
.channel.is-active{color:var(--c-primary);font-weight:600;}
.channel.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:3px;background:var(--c-primary);border-radius:3px;}
.anchor-tags{display:none;align-items:center;gap:14px;margin-left:auto;padding-left:20px;font-size:13px;}
.anchor-tags a{color:var(--c-muted);}
.anchor-tags a:hover{color:var(--c-primary);}

/* ===== 移动菜单 ===== */
.mobile-panel{position:fixed;inset:0;z-index:1000;background:rgba(22,35,31,.45);opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);}
.mobile-panel.is-open{opacity:1;visibility:visible;}
.mobile-panel-inner{position:absolute;top:0;right:0;width:min(86vw,340px);height:100%;background:#fff;padding:var(--sp-5);transform:translateX(100%);transition:transform .3s var(--ease);overflow-y:auto;display:flex;flex-direction:column;gap:var(--sp-5);}
.mobile-panel.is-open .mobile-panel-inner{transform:translateX(0);}
.panel-head{display:flex;align-items:center;justify-content:space-between;}
.panel-close{width:44px;height:44px;border:1px solid var(--c-line);background:#fff;border-radius:10px;font-size:20px;color:var(--c-body);cursor:pointer;}
.panel-nav{display:flex;flex-direction:column;gap:2px;}
.panel-nav a{padding:14px 12px;border-radius:10px;color:var(--c-ink);font-size:16px;font-weight:500;border-bottom:1px solid var(--c-line);}
.panel-nav a.is-active{color:var(--c-primary);background:var(--c-primary-soft);}
.panel-nav a:hover{background:var(--c-primary-soft);}

/* ===== 面包屑 ===== */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);margin-bottom:var(--sp-3);}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{opacity:.55;}
.breadcrumb .current{color:var(--c-body);}

/* ===== 分类页顶部 ===== */
.page-hero{
  position:relative;color:#fff;padding:56px 0;
  background-color:var(--c-night);
  background-image:linear-gradient(118deg,rgba(22,35,31,.92) 0%,rgba(31,78,68,.86) 58%,rgba(22,35,31,.78) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.page-hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:rgba(255,255,255,.12);}
.page-hero .breadcrumb,.page-hero .breadcrumb a{color:rgba(255,255,255,.68);}
.page-hero .breadcrumb .current{color:#fff;}
.page-hero .eyebrow{background:rgba(255,255,255,.14);color:#fff;}
.page-hero h1{color:#fff;margin-bottom:var(--sp-4);max-width:880px;}
.page-hero .lead{color:rgba(255,255,255,.82);max-width:680px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:var(--sp-5);}
.hero-badges span{display:inline-flex;align-items:center;gap:8px;font-size:13px;padding:8px 14px;border-radius:var(--r-pill);background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:#fff;}
.hero-badges i{color:var(--c-accent);font-size:12px;}
.hero-note{margin-top:var(--sp-5);font-size:14px;color:rgba(255,255,255,.62);}

/* ===== 筛选行 ===== */
.filter-bar{border-bottom:1px solid var(--c-line);background:var(--c-surface);}
.filter-inner{padding:16px 0;display:flex;flex-direction:column;gap:12px;}
.filter-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.filter-label{font-size:13px;color:var(--c-muted);margin-right:4px;}
.chip{display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:var(--r-pill);border:1px solid var(--c-line);background:#fff;color:var(--c-body);font-size:14px;cursor:pointer;transition:all .2s var(--ease);}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary-deep);background:var(--c-primary-soft);}
.chip.is-action{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600;}
.chip.is-action:hover{background:var(--c-primary-deep);color:#fff;}

/* ===== 案例条 ===== */
.case-list{margin-top:var(--sp-5);}
.case-row{
  display:grid;grid-template-columns:1fr;gap:var(--sp-5);
  padding:var(--sp-6) 0;border-bottom:1px solid var(--c-line);
  transition:background .2s var(--ease);
}
.case-row:last-of-type{border-bottom:1px solid var(--c-line);}
.case-media{position:relative;overflow:hidden;border-radius:12px;border:1px solid var(--c-line);aspect-ratio:3/2;background:var(--c-primary-soft);}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.case-row:hover .case-media img{transform:scale(1.03);}
.case-index{position:absolute;left:12px;top:12px;min-width:38px;height:26px;padding:0 10px;border-radius:var(--r-pill);background:rgba(22,35,31,.72);color:#fff;font-size:12px;display:inline-flex;align-items:center;justify-content:center;letter-spacing:1px;}
.case-body{display:flex;flex-direction:column;gap:var(--sp-3);}
.case-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--c-muted);}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);background:var(--c-primary-soft);color:var(--c-primary-deep);font-size:13px;font-weight:600;}
.badge.accent{background:var(--c-accent-soft);color:#A9562A;}
.case-body h3{font-size:20px;}
.case-body p{color:var(--c-body);}
.case-metrics{display:flex;flex-wrap:wrap;gap:var(--sp-5);margin:4px 0 0;}
.case-metrics div{min-width:110px;}
.case-metrics dt{font-size:13px;color:var(--c-muted);margin-bottom:2px;}
.case-metrics dd{margin:0;font-size:20px;font-weight:700;color:var(--c-accent);line-height:1.3;}

/* ===== 深色数据带 ===== */
.dark-band{background:var(--c-night);color:#fff;padding:var(--sp-8) 0;position:relative;overflow:hidden;}
.dark-band::before{content:"";position:absolute;right:-80px;top:-90px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(46,107,94,.55),rgba(46,107,94,0) 68%);}
.dark-band .inner{position:relative;}
.dark-band h2{color:#fff;}
.dark-band .sub{color:rgba(255,255,255,.68);max-width:640px;margin-top:var(--sp-3);}
.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-5);margin-top:var(--sp-6);}
.stat{border-top:1px solid rgba(255,255,255,.16);padding-top:14px;}
.stat strong{display:block;font-size:30px;color:var(--c-accent);font-weight:700;line-height:1.2;}
.stat span{font-size:14px;color:rgba(255,255,255,.7);}
.dark-source{margin-top:var(--sp-5);font-size:13px;color:rgba(255,255,255,.5);}

/* ===== 引用卡 ===== */
.quote-grid{display:grid;grid-template-columns:1fr;gap:var(--sp-5);}
.quote-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);padding:var(--sp-5);box-shadow:var(--sh-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease);}
.quote-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.quote-head{display:flex;align-items:center;gap:12px;margin-bottom:var(--sp-4);}
.avatar{width:42px;height:42px;border-radius:50%;background:var(--c-primary-soft);color:var(--c-primary-deep);display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;flex:0 0 42px;}
.quote-head strong{display:block;font-size:15px;color:var(--c-ink);}
.quote-head span{font-size:13px;color:var(--c-muted);}
.quote-card blockquote{margin:0;font-size:16px;color:var(--c-body);line-height:1.85;border-left:4px solid var(--c-primary);background:var(--c-primary-soft);border-radius:0 10px 10px 0;padding:14px 16px;}

/* ===== FAQ ===== */
.faq-wrap{max-width:860px;}
.faq .accordion{background:transparent;border:0;display:grid;gap:12px;margin:0;}
.faq .accordion-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);}
.faq .accordion-item.is-active{border-color:var(--c-primary);box-shadow:var(--sh-1);}
.faq .accordion-title{display:flex;align-items:center;gap:14px;padding:18px 20px;font-size:17px;font-weight:600;color:var(--c-ink);background:transparent;border:0;transition:color .2s var(--ease);}
.faq .accordion-title:hover{color:var(--c-primary-deep);background:var(--c-primary-soft);}
.faq .accordion-title::before{display:none;}
.faq .accordion-title::after{content:"＋";margin-left:auto;color:var(--c-primary);font-size:18px;line-height:1;transition:transform .22s var(--ease),color .22s var(--ease);}
.faq .accordion-item.is-active .accordion-title::after{transform:rotate(45deg);color:var(--c-accent);}
.faq .accordion-title .num{color:var(--c-accent);font-size:15px;font-weight:700;min-width:22px;}
.faq .accordion-content{padding:0 20px 20px 56px;border:0;background:transparent;color:var(--c-body);font-size:16px;line-height:1.85;}

/* ===== 结尾 CTA ===== */
.cta-band{background:var(--c-primary-soft);border-radius:var(--r-lg);padding:var(--sp-7) var(--sp-5);}
.cta-inner{display:grid;grid-template-columns:1fr;gap:var(--sp-5);align-items:center;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ===== 浮动 CTA ===== */
.float-cta{position:fixed;right:24px;bottom:32px;z-index:900;display:none;flex-direction:column;gap:12px;opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .3s var(--ease),visibility .3s var(--ease),transform .3s var(--ease),bottom .3s var(--ease);}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.fab{position:relative;width:52px;height:52px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;box-shadow:var(--sh-1);font-size:18px;transition:transform .22s var(--ease),box-shadow .22s var(--ease);}
.fab:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.fab-main{background:var(--c-primary);color:#fff;}
.fab-main:hover{background:var(--c-primary-deep);color:#fff;}
.fab-main::after{content:"";position:absolute;inset:-6px;border-radius:50%;border:1px solid rgba(46,107,94,.4);animation:breathe 2.8s ease-in-out infinite;}
@keyframes breathe{0%,100%{opacity:.3;transform:scale(1);}50%{opacity:.85;transform:scale(1.07);}}
.fab-ghost{background:#fff;color:var(--c-primary);border:1px solid var(--c-line);}
.fab .tip{position:absolute;right:64px;top:50%;transform:translateY(-50%);white-space:nowrap;background:var(--c-night);color:#fff;font-size:13px;padding:6px 12px;border-radius:var(--r-sm);opacity:0;pointer-events:none;transition:opacity .2s var(--ease);}
.fab:hover .tip,.fab:focus-visible .tip{opacity:1;}
.mobile-cta{position:fixed;left:16px;right:16px;bottom:calc(12px + env(safe-area-inset-bottom,0px));z-index:900;display:flex;gap:10px;opacity:0;visibility:hidden;transform:translateY(12px);transition:opacity .3s var(--ease),visibility .3s var(--ease),transform .3s var(--ease);}
.mobile-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.mobile-cta a{flex:1;height:52px;border-radius:var(--r-md);display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;box-shadow:var(--sh-1);}
.mobile-cta .m-main{background:var(--c-primary);color:#fff;}
.mobile-cta .m-main:hover{background:var(--c-primary-deep);color:#fff;}
.mobile-cta .m-ghost{background:#fff;color:var(--c-primary-deep);border:1px solid var(--c-line);}

/* ===== 页脚 ===== */
.site-footer{background:var(--c-night);color:#fff;padding:var(--sp-8) 0 var(--sp-5);margin-top:var(--sp-9);}
.footer-grid{display:grid;grid-template-columns:1fr;gap:var(--sp-6);}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:var(--sp-4);letter-spacing:.5px;}
.footer-brand .brand{color:#fff;font-size:19px;margin-bottom:var(--sp-4);}
.footer-brand .brand-mark{color:#7FC2A9;}
.footer-desc{color:rgba(255,255,255,.65);font-size:14px;line-height:1.8;max-width:420px;}
.footer-contact{display:flex;flex-direction:column;gap:8px;margin-top:var(--sp-4);font-size:14px;color:rgba(255,255,255,.72);}
.footer-contact i{color:var(--c-accent);width:18px;margin-right:6px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:rgba(255,255,255,.72);font-size:14px;transition:color .22s var(--ease);}
.footer-links a:hover{color:var(--c-accent);}
.qr-box{width:96px;height:96px;border-radius:var(--r-sm);background:rgba(255,255,255,.08);border:1px dashed rgba(255,255,255,.28);display:flex;align-items:center;justify-content:center;text-align:center;font-size:12px;line-height:1.6;color:rgba(255,255,255,.7);}
.footer-bottom{margin-top:var(--sp-7);padding-top:var(--sp-4);border-top:1px solid rgba(255,255,255,.12);display:flex;flex-direction:column;gap:8px;font-size:13px;color:rgba(255,255,255,.6);}
.footer-bottom a{color:rgba(255,255,255,.7);}
.footer-bottom a:hover{color:var(--c-accent);}

/* ===== 工具类 ===== */
.mt-5{margin-top:var(--sp-5);}
.mt-6{margin-top:var(--sp-6);}
.center{text-align:center;}

/* ===== 断点 ===== */
@media (min-width:640px){
  h1{font-size:36px;}
  h2{font-size:27px;}
  .container{padding:0 28px;}
  .section{padding:72px 0;}
  .page-hero{padding:72px 0;}
  .stat-grid{grid-template-columns:repeat(4,1fr);}
  .quote-grid{grid-template-columns:1fr 1fr;}
  .filter-inner{flex-direction:row;justify-content:space-between;align-items:center;}
}
@media (min-width:1024px){
  h1{font-size:42px;}
  h2{font-size:30px;}
  h3{font-size:22px;}
  .container{padding:0 32px;}
  .section{padding:96px 0;}
  .brandbar .btn-primary{display:inline-flex;}
  .brandbar-inner{height:68px;}
  .brand{font-size:19px;}
  .search-mini{display:inline-flex;}
  .tel-link{display:inline-flex;}
  .menu-toggle{display:none;}
  .anchor-tags{display:flex;}
  .float-cta{display:flex;}
  .mobile-cta{display:none;}
  .case-row{grid-template-columns:5fr 7fr;gap:var(--sp-7);align-items:center;}
  .case-row:nth-child(even){grid-template-columns:7fr 5fr;}
  .case-row:nth-child(even) .case-media{order:2;}
  .cta-inner{grid-template-columns:1.6fr 1fr;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;}
  .footer-bottom{flex-direction:row;justify-content:space-between;align-items:center;}
}
@media (max-width:1023px){
  .float-cta{bottom:88px;right:16px;}
  .mobile-cta.is-visible{display:flex;}
}
@media (min-width:1440px){
  .container{max-width:1200px;}
}

/* roulang page: category3 */
:root{
  --c-primary:#2E6B5E;
  --c-primary-deep:#1F4E44;
  --c-primary-soft:#E4EFEA;
  --c-accent:#D97941;
  --c-accent-soft:#FBEDE2;
  --c-bg:#F6F7F4;
  --c-surface:#FFFFFF;
  --c-night:#16231F;
  --c-ink:#16231F;
  --c-body:#3A4642;
  --c-muted:#6E7A75;
  --c-line:#E2E6DF;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(22,35,31,.05),0 6px 18px -10px rgba(22,35,31,.16);
  --sh-2:0 14px 34px -18px rgba(22,35,31,.28);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px;
  --sp-6:32px; --sp-7:48px; --sp-8:72px; --sp-9:96px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --c-wide:1440px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-body);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .22s var(--ease),border-color .22s var(--ease),background-color .22s var(--ease);}
a:hover{color:var(--c-accent);}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
h1,h2,h3,h4{color:var(--c-ink);margin:0;font-weight:700;line-height:1.32;}
p{margin:0 0 1.15em;}
ul,ol{margin:0;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
hr{border:none;border-top:1px solid var(--c-line);margin:0;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.container-wide{width:100%;max-width:var(--c-wide);margin:0 auto;padding:0 32px;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-line{border-top:1px solid var(--c-line);}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:800;background:var(--c-surface);}
.brandbar{border-bottom:1px solid var(--c-line);background:var(--c-surface);transition:box-shadow .22s var(--ease);}
.site-header.is-stuck .brandbar{box-shadow:var(--sh-1);}
.brandbar-inner{display:flex;align-items:center;justify-content:space-between;gap:var(--sp-5);min-height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);font-weight:700;font-size:19px;letter-spacing:.02em;}
.brand:hover{color:var(--c-primary);}
.brand-mark{
  width:32px;height:32px;min-height:26px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--c-primary);background:var(--c-primary-soft);border-radius:10px;flex:none;
}
.brand-mark svg{width:22px;height:22px;display:block;}
.brandbar-right{display:flex;align-items:center;gap:var(--sp-4);}
.brand-phone{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--c-muted);}
.brand-phone i{color:var(--c-primary);}
.search-toggle{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 14px;border-radius:var(--r-sm);
  border:1px solid var(--c-line);color:var(--c-body);font-size:14px;background:var(--c-surface);
  transition:all .22s var(--ease);
}
.search-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft);}
.search-box{display:none;align-items:center;gap:8px;}
.search-box.open{display:inline-flex;}
.search-box input{
  height:40px;width:200px;padding:0 12px;border:1px solid var(--c-line);border-radius:var(--r-sm);
  font-size:14px;color:var(--c-ink);background:var(--c-surface);
}
.search-box input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px var(--c-primary-soft);}
.nav-hamburger{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--c-line);
  align-items:center;justify-content:center;color:var(--c-ink);font-size:17px;background:var(--c-surface);
}
.nav-hamburger:hover{background:var(--c-primary-soft);border-color:var(--c-primary);color:var(--c-primary);}

.channelbar{background:var(--c-bg);border-bottom:1px solid var(--c-line);}
.channelbar-inner{display:flex;align-items:center;gap:28px;min-height:52px;overflow-x:auto;scrollbar-width:none;}
.channelbar-inner::-webkit-scrollbar{display:none;}
.channel{
  position:relative;flex:none;padding:14px 2px;font-size:15px;color:var(--c-body);
  border-bottom:3px solid transparent;
}
.channel:hover{color:var(--c-primary);background:var(--c-primary-soft);border-radius:var(--r-pill);padding-left:12px;padding-right:12px;}
.channel.is-active{color:var(--c-primary);font-weight:600;border-bottom-color:var(--c-primary);}
.anchor-tags{display:flex;align-items:center;gap:14px;margin-left:auto;flex:none;}
.anchor-tags a{font-size:13px;color:var(--c-muted);}
.anchor-tags a:hover{color:var(--c-primary);}

/* mobile panel */
.mobile-mask{position:fixed;inset:0;background:rgba(22,35,31,.42);opacity:0;visibility:hidden;transition:all .24s var(--ease);z-index:880;}
.mobile-mask.open{opacity:1;visibility:visible;}
.mobile-panel{
  position:fixed;top:0;right:0;height:100%;width:290px;max-width:86vw;background:var(--c-surface);
  transform:translateX(100%);transition:transform .28s var(--ease);z-index:890;
  padding:var(--sp-5);display:flex;flex-direction:column;gap:6px;overflow-y:auto;
}
.mobile-panel.open{transform:translateX(0);}
.mobile-panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--sp-4);}
.mobile-panel-head span{font-weight:700;color:var(--c-ink);font-size:17px;}
.mp-close{width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--c-line);display:flex;align-items:center;justify-content:center;color:var(--c-ink);}
.mp-close:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.mp-link{padding:14px 12px;border-radius:var(--r-sm);font-size:16px;color:var(--c-body);}
.mp-link:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.mp-link.is-active{color:var(--c-primary);font-weight:600;background:var(--c-primary-soft);}
.mp-cta{margin-top:var(--sp-5);text-align:center;justify-content:center;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:10px;font-size:16px;font-weight:600;line-height:1.2;
  border:1px solid transparent;transition:all .22s var(--ease);min-height:44px;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-soft);border-color:var(--c-primary);color:var(--c-primary);}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:10px;}
.text-link{color:var(--c-primary);border-bottom:1px solid var(--c-primary);padding-bottom:2px;}
.text-link:hover{color:var(--c-accent);border-bottom-color:var(--c-accent);border-bottom-width:2px;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  padding:56px 0 48px;
  background:
    linear-gradient(180deg, rgba(46,107,94,.12) 0%, rgba(246,247,244,.95) 72%, rgba(246,247,244,1) 100%),
    url(/assets/images/backpic/back-1.png) center/cover no-repeat;
  border-bottom:1px solid var(--c-line);
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);margin-bottom:12px;}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .current{color:var(--c-body);}
.eyebrow{
  display:inline-block;padding:5px 14px;border-radius:var(--r-pill);background:var(--c-primary-soft);
  color:var(--c-primary);font-size:13px;font-weight:600;margin-bottom:16px;
}
.page-hero h1{font-size:42px;line-height:1.2;max-width:880px;letter-spacing:-.01em;}
.hero-sub{margin:18px 0 0;font-size:18px;color:var(--c-body);max-width:720px;line-height:1.8;}
.intro-bar{
  margin-top:var(--sp-6);
  background:var(--c-primary-soft);
  border-left:4px solid var(--c-primary);
  border-radius:var(--r-md);
  padding:26px 28px;
  display:flex;flex-wrap:wrap;gap:var(--sp-5);align-items:center;justify-content:space-between;
}
.intro-bar p{margin:0;max-width:640px;color:var(--c-body);font-size:16px;line-height:1.9;}
.badges{display:flex;flex-wrap:wrap;gap:10px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--c-surface);border:1px solid var(--c-line);color:var(--c-primary);font-size:13px;font-weight:600;
}
.badge i{font-size:11px;}

/* ---------- Doc layout ---------- */
.doc-layout{align-items:flex-start;}
.doc-aside{position:relative;}
.toc-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:22px 20px;box-shadow:var(--sh-1);
}
.toc-title{font-size:15px;font-weight:700;color:var(--c-ink);margin-bottom:14px;letter-spacing:.04em;}
.toc-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:2px;}
.toc-list a{
  display:block;padding:9px 12px;border-radius:var(--r-sm);font-size:14.5px;color:var(--c-body);
  border-left:2px solid transparent;line-height:1.5;
}
.toc-list a:hover{background:var(--c-primary-soft);color:var(--c-primary);border-left-color:var(--c-primary);}
.toc-note{margin-top:var(--sp-4);padding-top:var(--sp-4);border-top:1px solid var(--c-line);font-size:13px;color:var(--c-muted);line-height:1.7;}
.toc-mobile{display:none;margin-bottom:var(--sp-5);}
.toc-mobile summary{
  list-style:none;cursor:pointer;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);padding:14px 18px;font-size:15px;font-weight:600;color:var(--c-ink);
  display:flex;align-items:center;justify-content:space-between;
}
.toc-mobile summary::-webkit-details-marker{display:none;}
.toc-mobile[open] summary{border-color:var(--c-primary);color:var(--c-primary);}
.toc-mobile .toc-list{margin-top:12px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);padding:12px;}

.doc-body{max-width:760px;}
.doc-body h2{
  font-size:30px;margin:56px 0 20px;padding-top:8px;scroll-margin-top:140px;
}
.doc-body h2:first-child{margin-top:0;}
.doc-body h3{font-size:22px;margin:36px 0 14px;scroll-margin-top:140px;}
.doc-body p{font-size:17px;color:var(--c-body);}
.doc-body ul.point-list{list-style:none;padding:0;margin:8px 0 28px;}
.doc-body ul.point-list li{
  position:relative;padding:10px 0 10px 26px;border-bottom:1px dashed var(--c-line);font-size:16.5px;
}
.doc-body ul.point-list li::before{
  content:"";position:absolute;left:0;top:19px;width:9px;height:9px;border-radius:2px;background:var(--c-primary);
}
.doc-body ul.point-list li strong{color:var(--c-ink);}
blockquote{
  margin:28px 0;padding:20px 24px;background:var(--c-primary-soft);border-left:4px solid var(--c-primary);
  border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--c-ink);font-size:16.5px;
}
blockquote p{margin:0;color:var(--c-ink);}
figure{margin:32px 0;}
figure img{border-radius:12px;width:100%;aspect-ratio:16/9;object-fit:cover;border:1px solid var(--c-line);}
figcaption{margin-top:10px;text-align:center;font-size:13px;color:var(--c-muted);line-height:1.6;}

/* term cards */
.term-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--sp-4);margin:8px 0 28px;}
.term-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:20px 22px;box-shadow:var(--sh-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.term-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.term-card h4{font-size:18px;margin-bottom:8px;display:flex;align-items:center;gap:8px;}
.term-card h4 i{color:var(--c-primary);font-size:14px;}
.term-card p{margin:0;font-size:15px;color:var(--c-muted);line-height:1.8;}

/* table */
.table-wrap{overflow-x:auto;margin:8px 0 28px;border:1px solid var(--c-line);border-radius:var(--r-md);background:var(--c-surface);}
table.doc-table{width:100%;border-collapse:collapse;min-width:620px;font-size:15.5px;}
table.doc-table th,table.doc-table td{padding:16px 18px;text-align:left;height:56px;border-bottom:1px solid var(--c-line);}
table.doc-table th{background:var(--c-primary-soft);color:var(--c-ink);font-weight:600;font-size:15px;}
table.doc-table td{color:var(--c-body);}
table.doc-table td:first-child{font-weight:600;color:var(--c-ink);}
table.doc-table tr:last-child td{border-bottom:none;}

/* accordion */
.faq-accordion{list-style:none;margin:18px 0 8px;padding:0;border:none;background:transparent;}
.faq-accordion .accordion-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  margin-bottom:12px;overflow:hidden;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-accordion .accordion-item:hover{box-shadow:var(--sh-1);}
.faq-accordion .accordion-item.is-active{border-color:var(--c-primary);box-shadow:var(--sh-1);}
.faq-accordion .accordion-title{
  display:flex;align-items:center;gap:14px;padding:18px 20px;background:transparent;border:none;
  font-size:17px;font-weight:600;color:var(--c-ink);line-height:1.5;
}
.faq-accordion .accordion-title::before{display:none;}
.faq-accordion .accordion-title:hover{color:var(--c-primary);}
.faq-idx{flex:none;color:var(--c-accent);font-size:16px;font-weight:700;letter-spacing:.04em;}
.faq-q{flex:1;}
.faq-plus{
  flex:none;width:26px;height:26px;border-radius:50%;background:var(--c-primary-soft);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:12px;transition:transform .24s var(--ease);
}
.faq-plus i{transition:transform .24s var(--ease);}
.accordion-item.is-active .faq-plus{background:var(--c-primary);color:#fff;}
.accordion-item.is-active .faq-plus i{transform:rotate(45deg);}
.faq-accordion .accordion-content{padding:0 20px 20px 60px;color:var(--c-body);border:none;background:transparent;}
.faq-accordion .accordion-content p{font-size:16px;line-height:1.85;margin:0;}

/* ---------- Night band ---------- */
.night-band{background:var(--c-night);color:rgba(255,255,255,.78);border-top:1px solid rgba(255,255,255,.12);}
.night-band h2{color:#fff;font-size:30px;margin-bottom:14px;}
.night-band .lead{color:rgba(255,255,255,.72);max-width:720px;font-size:17px;}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-5);margin-top:var(--sp-7);}
.stat-item{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;}
.stat-num{font-size:36px;font-weight:700;color:var(--c-accent);line-height:1.1;letter-spacing:-.01em;}
.stat-num span{font-size:16px;font-weight:600;margin-left:4px;color:var(--c-accent);}
.stat-label{margin-top:8px;font-size:14px;color:rgba(255,255,255,.66);line-height:1.7;}
.source-note{margin-top:var(--sp-6);font-size:13px;color:rgba(255,255,255,.5);}

/* ---------- CTA ---------- */
.cta-section{padding:96px 0;}
.cta-panel{
  background:var(--c-primary-soft);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:56px 48px;display:flex;flex-wrap:wrap;gap:var(--sp-6);align-items:center;justify-content:space-between;
}
.cta-panel h2{font-size:30px;max-width:560px;}
.cta-panel p{margin:14px 0 0;max-width:560px;font-size:16.5px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- Float CTA ---------- */
.float-cta{position:fixed;right:28px;bottom:40px;z-index:900;display:flex;flex-direction:column;gap:12px;}
.fc-btn{
  width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:18px;box-shadow:var(--sh-1);transition:all .22s var(--ease);position:relative;
}
.fc-main{background:var(--c-primary);color:#fff;}
.fc-main:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.fc-sub{background:var(--c-surface);color:var(--c-primary);border:1px solid var(--c-line);}
.fc-sub:hover{background:var(--c-primary-soft);color:var(--c-primary);transform:translateY(-2px);}
.fc-btn::after{
  content:attr(data-tip);position:absolute;right:64px;top:50%;transform:translateY(-50%);
  background:var(--c-night);color:#fff;font-size:12.5px;padding:6px 12px;border-radius:var(--r-sm);
  white-space:nowrap;opacity:0;visibility:hidden;transition:all .2s var(--ease);
}
.fc-btn:hover::after{opacity:1;visibility:visible;}
.float-bar{
  position:fixed;left:16px;right:16px;bottom:calc(14px + env(safe-area-inset-bottom));z-index:900;
  display:none;gap:10px;opacity:0;visibility:hidden;transition:all .3s var(--ease);
}
.float-bar.show{opacity:1;visibility:visible;}
.float-bar a{
  flex:1;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  font-size:15.5px;font-weight:600;box-shadow:var(--sh-1);
}
.fb-main{background:var(--c-primary);color:#fff;}
.fb-sub{background:var(--c-surface);color:var(--c-primary);border:1px solid var(--c-line);}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-night);color:rgba(255,255,255,.78);padding:72px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:var(--sp-7);}
.footer-brand .brand{color:#fff;font-size:19px;}
.footer-brand .brand:hover{color:var(--c-accent);}
.footer-brand .brand-mark{background:rgba(255,255,255,.1);color:#fff;}
.footer-desc{margin:18px 0 0;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.66);max-width:340px;}
.footer-contact{margin-top:18px;display:flex;flex-direction:column;gap:10px;font-size:14px;color:rgba(255,255,255,.72);}
.footer-contact i{color:var(--c-accent);margin-right:8px;width:16px;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:.04em;}
.footer-links{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px;}
.footer-links a{color:rgba(255,255,255,.72);font-size:14.5px;}
.footer-links a:hover{color:var(--c-accent);}
.qr-box{
  width:96px;height:96px;border-radius:8px;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);display:flex;align-items:center;justify-content:center;
  text-align:center;font-size:12.5px;color:rgba(255,255,255,.62);line-height:1.5;
}
.footer-bottom{
  margin-top:var(--sp-8);padding-top:24px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13.5px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.62);}
.footer-bottom a:hover{color:var(--c-accent);}

/* ---------- Responsive ---------- */
@media screen and (max-width:1199px){
  .doc-body{max-width:none;}
  .toc-card{display:none;}
  .toc-mobile{display:block;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--sp-6);}
}
@media screen and (max-width:1023px){
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
  .page-hero h1{font-size:34px;}
  .page-hero{padding:44px 0 40px;}
  .doc-body h2{font-size:26px;}
  .night-band h2,.cta-panel h2{font-size:26px;}
  .stat-row{grid-template-columns:repeat(2,1fr);gap:var(--sp-5);}
  .anchor-tags{display:none;}
  .brand-phone{display:none;}
  .nav-hamburger{display:inline-flex;}
  .search-toggle span{display:none;}
  .search-toggle{padding:0 12px;}
  .cta-panel{padding:40px 28px;}
}
@media screen and (max-width:767px){
  body{font-size:16.5px;}
  .container,.container-wide{padding:0 20px;}
  .section{padding:56px 0;}
  .page-hero h1{font-size:30px;}
  .hero-sub{font-size:16.5px;}
  .intro-bar{padding:20px 20px;}
  .term-grid{grid-template-columns:1fr;}
  .doc-body h2{font-size:24px;margin:44px 0 16px;}
  .doc-body h3{font-size:19px;}
  .footer-grid{grid-template-columns:1fr;gap:var(--sp-6);}
  .float-cta{display:none;}
  .float-bar{display:flex;}
  .brandbar-inner{min-height:56px;}
  .channelbar-inner{gap:18px;}
  .faq-accordion .accordion-content{padding-left:20px;}
  .stat-num{font-size:30px;}
}
@media screen and (max-width:519px){
  .brand{font-size:17px;}
  .brandbar-right{gap:10px;}
  .btn{padding:13px 20px;font-size:15px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
  .stat-row{grid-template-columns:1fr;}
  .intro-bar{gap:var(--sp-4);}
}

/* roulang page: category4 */
/* ============ 设计令牌 ============ */
:root{
  --c-primary:#2E6B5E;
  --c-primary-deep:#1F4E44;
  --c-primary-soft:#E4EFEA;
  --c-accent:#D97941;
  --c-accent-soft:#FBEDE2;
  --c-bg:#F6F7F4;
  --c-surface:#FFFFFF;
  --c-night:#16231F;
  --c-ink:#16231F;
  --c-body:#3A4642;
  --c-muted:#6E7A75;
  --c-line:#E2E6DF;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(22,35,31,.05), 0 6px 18px -10px rgba(22,35,31,.16);
  --sh-2:0 14px 34px -18px rgba(22,35,31,.28);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px;
  --sp-6:32px; --sp-7:48px; --sp-8:72px; --sp-9:96px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}

/* ============ reset 与基础排版 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  color:var(--c-body);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color 220ms var(--ease);}
a:hover{color:var(--c-primary-deep);}
h1,h2,h3,h4,h5{margin:0;color:var(--c-ink);font-weight:700;}
h1{font-size:42px;line-height:1.2;letter-spacing:-.4px;}
h2{font-size:30px;line-height:1.32;}
h3{font-size:22px;line-height:1.45;font-weight:600;}
h4{font-size:18px;line-height:1.5;font-weight:600;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}

/* ============ 容器与栅格补充 ============ */
.container,.grid-container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
.grid-container.full{max-width:1440px;}
.prose{max-width:720px;}

/* ============ 通用元素 ============ */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--c-primary);
  background:var(--c-primary-soft);
  border-radius:var(--r-pill);
  padding:6px 14px;
}
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 12px;
  border-radius:var(--r-pill);
  font-size:13px;
  font-weight:600;
  line-height:1;
  background:var(--c-primary-soft);
  color:var(--c-primary);
}
.badge-open{background:var(--c-primary-soft);color:var(--c-primary);}
.badge-soon{background:var(--c-accent-soft);color:#B05F2E;}
.badge-done{background:#ECEEE9;color:var(--c-muted);}

.link-more,
.link-underline{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--c-primary);
  text-decoration:underline;
  text-underline-offset:4px;
  text-decoration-thickness:1px;
  transition:color 220ms var(--ease),text-decoration-thickness 220ms var(--ease);
}
.link-more:hover,
.link-underline:hover{color:var(--c-accent);text-decoration-thickness:2px;}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:14px 26px;
  border-radius:10px;
  font-size:16px;
  font-weight:600;
  line-height:1.2;
  border:1px solid transparent;
  background:none;
  cursor:pointer;
  text-align:center;
  transition:background-color 220ms var(--ease),color 220ms var(--ease),
             border-color 220ms var(--ease),transform 220ms var(--ease),
             box-shadow 220ms var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-primary:active{transform:none;box-shadow:none;}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-soft);border-color:var(--c-primary);color:var(--c-primary-deep);}
.btn-sm{min-height:40px;padding:10px 18px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.btn:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}

/* ============ 头部：品牌行 + 频道行 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:800;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow 220ms var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.brandbar{border-bottom:1px solid var(--c-line);background:var(--c-surface);}
.brandbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:68px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:19px;
  font-weight:700;
  color:var(--c-ink);
  letter-spacing:.01em;
}
.brand:hover{color:var(--c-primary-deep);}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:32px;
  height:32px;
  min-height:26px;
  color:var(--c-primary);
}
.brand-mark svg{width:32px;height:32px;display:block;}
.brandbar-actions{display:flex;align-items:center;gap:16px;}
.hotline{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  color:var(--c-body);
}
.hotline i{color:var(--c-primary);}
.hotline:hover{color:var(--c-primary);}
.search-mini{
  display:flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 14px;
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  background:var(--c-bg);
  transition:border-color 220ms var(--ease),background-color 220ms var(--ease);
}
.search-mini:focus-within{border-color:var(--c-primary);background:var(--c-surface);}
.search-mini i{color:var(--c-muted);font-size:14px;}
.search-mini input{
  width:132px;
  border:0;
  background:transparent;
  padding:0;
  height:auto;
  font-size:14px;
  color:var(--c-body);
  box-shadow:none;
}
.search-mini input:focus{outline:none;box-shadow:none;}
.menu-toggle{
  display:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--c-line);
  border-radius:10px;
  background:var(--c-surface);
  color:var(--c-ink);
  cursor:pointer;
}
.menu-toggle:hover{background:var(--c-primary-soft);border-color:var(--c-primary);}

.channelbar{background:var(--c-bg);border-top:0;}
.channelbar-inner{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:52px;
}
.channel{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:52px;
  font-size:15px;
  font-weight:600;
  color:var(--c-body);
  padding:0 10px;
  border-radius:var(--r-pill);
  transition:color 220ms var(--ease),background-color 220ms var(--ease);
}
.channel:hover{background:var(--c-primary-soft);color:var(--c-primary-deep);}
.channel.is-active{color:var(--c-primary);}
.channel.is-active::after{
  content:"";
  position:absolute;
  left:10px;right:10px;bottom:6px;
  height:3px;
  border-radius:2px;
  background:var(--c-primary);
}
.anchor-tags{
  display:flex;
  align-items:center;
  gap:18px;
  margin-left:auto;
  border-left:1px solid var(--c-line);
  padding-left:24px;
}
.anchor-tags a{
  font-size:14px;
  color:var(--c-muted);
}
.anchor-tags a:hover{color:var(--c-primary);}

/* 移动端抽屉 */
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(22,35,31,.45);
  opacity:0;
  visibility:hidden;
  transition:opacity 240ms var(--ease),visibility 240ms var(--ease);
  z-index:880;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;
  top:0;right:0;bottom:0;
  width:min(86vw,340px);
  background:var(--c-surface);
  z-index:890;
  transform:translateX(100%);
  transition:transform 260ms var(--ease);
  display:flex;
  flex-direction:column;
  padding:20px;
  overflow-y:auto;
  box-shadow:var(--sh-2);
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:16px;
  border-bottom:1px solid var(--c-line);
  margin-bottom:16px;
}
.drawer-head .brand{font-size:17px;}
.drawer-close{
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--c-line);
  border-radius:10px;
  background:var(--c-surface);
  color:var(--c-ink);
  cursor:pointer;
  font-size:18px;
}
.drawer-close:hover{background:var(--c-primary-soft);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:24px;}
.drawer-nav a{
  display:flex;
  align-items:center;
  min-height:48px;
  padding:0 14px;
  border-radius:10px;
  font-size:16px;
  font-weight:600;
  color:var(--c-body);
}
.drawer-nav a:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.drawer-nav a.is-active{color:var(--c-primary);background:var(--c-primary-soft);}
.drawer-sub{margin-top:8px;padding-top:12px;border-top:1px solid var(--c-line);}
.drawer-sub a{font-size:15px;font-weight:500;color:var(--c-muted);min-height:44px;}

/* ============ 区块节奏 ============ */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-soft{background:var(--c-primary-soft);}
.section-surface{background:var(--c-surface);}
.section-dark{background:var(--c-night);color:rgba(255,255,255,.86);}
.section-dark h2,.section-dark h3{color:#fff;}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head .eyebrow{margin-bottom:16px;}
.section-head p{margin-top:16px;color:var(--c-muted);font-size:16.5px;}
.section-dark .section-head p{color:rgba(255,255,255,.68);}
[data-anchor]{scroll-margin-top:130px;}

/* ============ Hero ============ */
.hero-section{
  position:relative;
  padding:56px 0 72px;
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(46,107,94,.10), rgba(46,107,94,0) 60%),
    var(--c-bg);
  overflow:hidden;
}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--c-muted);
  margin-bottom:12px;
  flex-wrap:wrap;
}
.crumb a{color:var(--c-muted);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{opacity:.6;}
.crumb .current{color:var(--c-body);}
.hero-grid{margin-top:8px;}
.hero-copy h1{margin-bottom:20px;}
.hero-copy h1 .accent{color:var(--c-primary);}
.hero-sub{
  font-size:18px;
  line-height:1.8;
  color:var(--c-body);
  max-width:560px;
  margin-bottom:28px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;}
.hero-badges li{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:28px;
  padding:0 14px;
  border-radius:var(--r-pill);
  border:1px solid var(--c-line);
  background:var(--c-surface);
  font-size:13px;
  color:var(--c-body);
}
.hero-badges i{color:var(--c-primary);font-size:12px;}
.hero-visual{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--c-line);
  aspect-ratio:4/3;
  box-shadow:var(--sh-1);
}
.hero-visual img{width:100%;height:100%;object-fit:cover;}
.hero-visual-overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, rgba(46,107,94,.12) 0%, rgba(46,107,94,.06) 45%, rgba(246,247,244,.92) 100%);
  pointer-events:none;
}
.hero-visual-tag{
  position:absolute;
  left:18px;
  bottom:18px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.94);
  color:var(--c-ink);
  font-size:13px;
  font-weight:600;
  box-shadow:var(--sh-1);
}
.hero-visual-tag i{color:var(--c-accent);}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  margin-top:56px;
  padding-top:28px;
  border-top:1px solid var(--c-line);
}
.hero-stats li{display:flex;flex-direction:column;gap:2px;}
.hero-stats .num{
  font-size:26px;
  font-weight:700;
  color:var(--c-accent);
  line-height:1.2;
}
.hero-stats .label{font-size:14px;color:var(--c-muted);}

/* ============ 活动看点：错位排列 ============ */
.point-row{
  display:flex;
  gap:40px;
  padding:28px 0;
  border-top:1px solid var(--c-line);
}
.point-row:first-child{border-top:0;padding-top:0;}
.point-label{
  flex:0 0 240px;
  display:flex;
  align-items:flex-start;
  gap:14px;
}
.point-icon{
  flex:0 0 40px;
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-size:16px;
}
.point-label h3{font-size:18px;line-height:1.5;}
.point-body{flex:1;}
.point-body p{color:var(--c-body);margin-bottom:10px;}
.point-body .point-note{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--c-muted);
}
.point-body .point-note i{color:var(--c-accent);font-size:12px;}

/* ============ 时间轴 ============ */
.timeline{position:relative;margin-top:8px;}
.timeline-item{
  position:relative;
  display:grid;
  grid-template-columns:88px 1fr;
  gap:32px;
  padding-bottom:36px;
}
.timeline-item::before{
  content:"";
  position:absolute;
  left:104px;
  top:14px;
  bottom:-14px;
  width:1px;
  background:var(--c-line);
  transform:translateX(-50%);
}
.timeline-item:last-child::before{display:none;}
.timeline-item::after{
  content:"";
  position:absolute;
  left:104px;
  top:10px;
  width:11px;height:11px;
  border-radius:50%;
  background:var(--c-surface);
  border:2px solid var(--c-primary);
  transform:translateX(-50%);
}
.timeline-date{
  width:88px;height:88px;
  border-radius:var(--r-md);
  background:var(--c-surface);
  border:1px solid var(--c-line);
  color:var(--c-primary);
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  box-shadow:var(--sh-1);
}
.timeline-date .d{font-size:26px;font-weight:700;line-height:1;}
.timeline-date .m{font-size:13px;color:var(--c-muted);margin-top:6px;}
.timeline-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:24px;
  box-shadow:var(--sh-1);
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
}
.timeline-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#CFDAD3;}
.timeline-top{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:12px;
  flex-wrap:wrap;
}
.timeline-kind{font-size:13px;color:var(--c-muted);}
.timeline-card h3{margin-bottom:10px;}
.timeline-card p{color:var(--c-body);font-size:16px;}
.timeline-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid var(--c-line);
}
.timeline-foot .time{font-size:14px;color:var(--c-muted);display:inline-flex;align-items:center;gap:8px;}
.timeline-foot .time i{color:var(--c-primary);font-size:13px;}

/* ============ 深色数据带 ============ */
.data-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
  margin-top:8px;
}
.data-grid .num{
  font-size:36px;
  font-weight:700;
  color:var(--c-accent);
  line-height:1.15;
}
.data-grid .desc{font-size:15px;color:rgba(255,255,255,.72);margin-top:6px;}
.data-source{
  margin-top:36px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:rgba(255,255,255,.55);
}

/* ============ 流程步骤 ============ */
.flow{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  position:relative;
}
.flow-step{
  position:relative;
  padding:28px 22px 24px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease);
}
.flow-step:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.flow-step::before{
  content:"";
  position:absolute;
  left:0;top:22px;bottom:22px;
  width:2px;
  border-radius:2px;
  background:var(--c-primary);
}
.flow-num{
  display:block;
  font-size:20px;
  font-weight:700;
  color:var(--c-accent);
  line-height:1;
  margin-bottom:14px;
  text-align:right;
}
.flow-step h3{font-size:18px;margin-bottom:8px;}
.flow-step p{font-size:15px;color:var(--c-muted);margin:0;}

/* ============ 图文交错 ============ */
.split{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:56px;
  align-items:center;
}
.split.reverse{grid-template-columns:5fr 7fr;}
.split-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--c-line);
  aspect-ratio:3/2;
  box-shadow:var(--sh-1);
}
.split-media img{width:100%;height:100%;object-fit:cover;}
.split h2{margin-bottom:18px;}
.split p{color:var(--c-body);}
.check-list{margin-top:20px;display:flex;flex-direction:column;gap:12px;}
.check-list li{
  display:flex;
  gap:10px;
  font-size:16px;
  color:var(--c-body);
}
.check-list i{color:var(--c-primary);margin-top:6px;font-size:13px;}

/* ============ FAQ ============ */
.faq-columns{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0 24px;
  align-items:start;
}
.accordion{
  background:transparent;
  border:0;
  margin:0;
}
.accordion .accordion-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  margin-bottom:12px;
  box-shadow:var(--sh-1);
  transition:border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.accordion .accordion-item.is-active{border-color:var(--c-primary);}
.accordion .accordion-title{
  position:relative;
  display:block;
  padding:20px 56px 20px 20px;
  font-size:17px;
  font-weight:600;
  color:var(--c-ink);
  background:transparent;
  border:0;
  line-height:1.5;
}
.accordion .accordion-title:hover{background:var(--c-primary-soft);border-radius:var(--r-md) var(--r-md) 0 0;}
.accordion .accordion-title::before{display:none !important;}
.faq-icon{
  position:absolute;
  right:20px;
  top:50%;
  width:16px;height:16px;
  transform:translateY(-50%);
  transition:transform 220ms var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--c-primary);
  border-radius:2px;
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px;}
.faq-icon::after{left:7px;top:0;width:2px;height:16px;}
.accordion .accordion-item.is-active .faq-icon{transform:translateY(-50%) rotate(45deg);}
.accordion .accordion-content{
  display:none;
  padding:0 20px 22px;
  background:transparent;
  border:0;
  color:var(--c-body);
  font-size:16px;
  line-height:1.85;
}
.accordion .accordion-content.is-open{display:block;}
.accordion .accordion-content p{margin:0;}

/* ============ 报名表单 ============ */
.signup-shell{
  background:var(--c-primary-soft);
  border-radius:var(--r-lg);
  padding:56px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:start;
}
.signup-intro h2{margin-bottom:16px;}
.signup-intro p{color:var(--c-body);}
.signup-points{margin-top:24px;display:flex;flex-direction:column;gap:12px;}
.signup-points li{display:flex;gap:10px;font-size:15px;color:var(--c-body);}
.signup-points i{color:var(--c-primary);margin-top:5px;font-size:13px;}
.form-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:28px;
  box-shadow:var(--sh-1);
}
.field{margin-bottom:18px;}
.field label{
  display:block;
  font-size:14px;
  color:var(--c-muted);
  margin-bottom:8px;
}
.field input,.field textarea,.field select{
  width:100%;
  height:48px;
  padding:0 14px;
  border:1px solid var(--c-line);
  border-radius:10px;
  background:var(--c-surface);
  color:var(--c-ink);
  font-size:15px;
  box-shadow:none;
  transition:border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.field textarea{height:auto;min-height:104px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(46,107,94,.16);
}
.field.has-error input,.field.has-error textarea,.field.has-error select{border-color:var(--c-accent);}
.field-error{display:none;font-size:13px;color:var(--c-accent);margin-top:6px;}
.field.has-error .field-error{display:block;}
.form-privacy{
  margin-top:14px;
  font-size:13px;
  color:var(--c-muted);
  line-height:1.7;
}
.form-feedback{
  display:none;
  margin-top:16px;
  padding:14px 16px;
  border-radius:10px;
  background:var(--c-primary-soft);
  color:var(--c-primary-deep);
  font-size:15px;
  border:1px solid #CFE0D8;
}
.form-feedback.is-visible{display:block;}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;
  right:28px;
  bottom:32px;
  z-index:900;
  display:flex;
  flex-direction:column;
  gap:12px;
  transition:transform 300ms var(--ease),opacity 300ms var(--ease);
}
.float-btn{
  position:relative;
  width:52px;height:52px;
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  box-shadow:var(--sh-2);
  transition:transform 220ms var(--ease),background-color 220ms var(--ease),color 220ms var(--ease);
}
.float-btn-primary{background:var(--c-primary);color:#fff;}
.float-btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-2px);}
.float-btn-ghost{background:var(--c-surface);color:var(--c-primary);border:1px solid var(--c-line);}
.float-btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-deep);transform:translateY(-2px);}
.float-tip{
  position:absolute;
  right:64px;
  top:50%;
  transform:translateY(-50%);
  white-space:nowrap;
  background:var(--c-night);
  color:#fff;
  font-size:13px;
  padding:6px 12px;
  border-radius:8px;
  opacity:0;
  visibility:hidden;
  transition:opacity 220ms var(--ease),visibility 220ms var(--ease);
}
.float-btn:hover .float-tip{opacity:1;visibility:visible;}
.float-cta.is-hidden{transform:translateY(140px);opacity:0;pointer-events:none;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-night);
  color:rgba(255,255,255,.78);
  padding:72px 0 28px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:48px;
  padding-bottom:48px;
}
.site-footer h4{
  color:#fff;
  font-size:16px;
  margin-bottom:18px;
}
.site-footer .brand{color:#fff;font-size:18px;}
.site-footer .brand:hover{color:var(--c-accent);}
.site-footer .brand-mark{color:#fff;}
.footer-desc{
  font-size:14.5px;
  line-height:1.8;
  color:rgba(255,255,255,.66);
  margin:18px 0 20px;
  max-width:360px;
}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:rgba(255,255,255,.72);}
.footer-contact i{color:var(--c-accent);margin-right:8px;font-size:13px;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{font-size:14.5px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:var(--c-accent);}
.qr-box{
  width:96px;height:96px;
  border-radius:8px;
  border:1px dashed rgba(255,255,255,.35);
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  font-size:13px;
  line-height:1.6;
  color:rgba(255,255,255,.62);
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding-top:24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.7);}
.footer-bottom a:hover{color:var(--c-accent);}

/* ============ 工具类 ============ */
.mt-0{margin-top:0;}
.text-center{text-align:center;}
.hide{display:none !important;}

/* ============ 响应式：平板 ============ */
@media (max-width:1024px){
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
  .container,.grid-container{padding-left:28px;padding-right:28px;}
  h1{font-size:34px;}
  h2{font-size:26px;}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:20px;}
  .data-grid{grid-template-columns:repeat(2,1fr);gap:24px;}
  .flow{grid-template-columns:repeat(2,1fr);}
  .signup-shell{padding:40px;gap:36px;}
  .split,.split.reverse{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .anchor-tags{display:none;}
  .channelbar-inner{
    overflow-x:auto;
    gap:10px;
    padding:0 28px;
    scroll-snap-type:x proximity;
    -webkit-overflow-scrolling:touch;
    -webkit-mask-image:linear-gradient(90deg,#000 0,#000 92%,transparent 100%);
    mask-image:linear-gradient(90deg,#000 0,#000 92%,transparent 100%);
  }
  .channelbar-inner::-webkit-scrollbar{height:0;}
  .channel{scroll-snap-align:start;white-space:nowrap;padding:0 8px;}
  .channel.is-active::after{left:8px;right:8px;}
}

/* ============ 响应式：手机 ============ */
@media (max-width:640px){
  body{font-size:16.5px;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .container,.grid-container{padding-left:20px;padding-right:20px;}
  h1{font-size:30px;}
  h2{font-size:24px;}
  h3{font-size:19px;}
  .brandbar-inner{min-height:56px;}
  .brand{font-size:17px;}
  .brand-mark,.brand-mark svg{width:28px;height:28px;}
  .search-mini,.hotline{display:none;}
  .brandbar-actions .btn-sm{display:none;}
  .menu-toggle{display:inline-flex;}
  .channelbar-inner{padding:0 20px;min-height:48px;}
  .channel{height:48px;font-size:14.5px;}
  .hero-section{padding:32px 0 48px;}
  .hero-sub{font-size:16.5px;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .hero-cta .btn{width:100%;}
  .hero-visual{aspect-ratio:auto;height:240px;border-radius:var(--r-md);}
  .hero-stats{margin-top:36px;padding-top:20px;gap:16px;}
  .hero-stats .num{font-size:22px;}
  .point-row{flex-direction:column;gap:14px;padding:22px 0;}
  .point-label{flex:none;}
  .timeline-item{grid-template-columns:1fr;gap:0;padding-bottom:28px;padding-left:0;}
  .timeline-item::before,.timeline-item::after{display:none;}
  .timeline-date{
    width:auto;height:auto;
    flex-direction:row;
    gap:8px;
    padding:8px 16px;
    border-radius:var(--r-pill);
    align-self:flex-start;
    margin-bottom:12px;
  }
  .timeline-date .d{font-size:18px;}
  .timeline-date .m{margin-top:0;font-size:13px;}
  .timeline-card{padding:20px;}
  .data-grid{grid-template-columns:1fr 1fr;gap:20px;}
  .data-grid .num{font-size:28px;}
  .flow{grid-template-columns:1fr;gap:14px;}
  .faq-columns{grid-template-columns:1fr;}
  .signup-shell{
    grid-template-columns:1fr;
    padding:28px 20px;
    gap:28px;
    border-radius:var(--r-lg);
  }
  .form-card{padding:22px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px;}
  .site-footer{padding:56px 0 24px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .float-cta{
    right:16px;
    left:16px;
    bottom:calc(16px + env(safe-area-inset-bottom,0px));
    flex-direction:row;
    gap:12px;
    transform:translateY(120px);
    opacity:0;
    pointer-events:none;
  }
  .float-cta.is-visible{transform:translateY(0);opacity:1;pointer-events:auto;}
  .float-cta.is-hidden{transform:translateY(160px);opacity:0;pointer-events:none;}
  .float-btn{
    flex:1 1 0;
    width:auto;height:52px;
    border-radius:14px;
    gap:8px;
    font-size:15px;
    font-weight:600;
  }
  .float-btn .btn-text{display:inline;font-size:15px;}
  .float-tip{display:none;}
}
@media (min-width:641px){
  .float-btn .btn-text{display:none;}
}