/* roulang page: index */
:root{
  --ink:#10231C;
  --ink-soft:#1A3229;
  --accent:#FF4A17;
  --moss:#1F8A63;
  --lime:#CBE86B;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --line:#E2DED5;
  --muted:#6E6A61;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow-soft:0 1px 2px rgba(16,35,28,.04);
  --shadow-hover:0 18px 40px -20px rgba(16,35,28,.35);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border-radius:14px;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink);}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.num{font-family:"Barlow Condensed","JetBrains Mono",ui-monospace,monospace;font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

.container{max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:96px 0;}
.section-alt{background:var(--surface);}

/* ------- 顶部信息条 ------- */
.topbar{background:var(--ink);color:rgba(255,255,255,.86);height:36px;font-size:12px;letter-spacing:.05em;}
.topbar-inner{height:36px;display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-note{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-actions{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.topbar-link{color:rgba(255,255,255,.7);transition:color .2s ease;}
.topbar-link:hover{color:var(--lime);}
.topbar-divider{width:1px;height:14px;background:rgba(255,255,255,.22);display:inline-block;}
.topbar-pill{background:var(--accent);color:#fff;padding:4px 14px;border-radius:999px;font-weight:700;letter-spacing:.06em;transition:background .2s ease;}
.topbar-pill:hover{background:#fff;color:var(--ink);}

/* ------- 主导航 ------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,239,.96);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s ease,background .24s ease;
}
.site-header.is-scrolled{
  box-shadow:0 12px 30px -22px rgba(16,35,28,.5);
  background:rgba(246,244,239,.9);
  backdrop-filter:blur(6px);
}
.nav-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px;}
.brand{display:flex;align-items:baseline;gap:10px;}
.brand-mark{font-size:22px;font-weight:900;letter-spacing:-.02em;color:var(--ink);}
.brand-sub{font-size:11px;letter-spacing:.24em;color:var(--moss);font-weight:700;text-transform:uppercase;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-soft);
  padding:10px 14px;border-radius:8px;transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .22s cubic-bezier(.2,.7,.3,1);
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--ink);font-weight:700;}
.nav-right{display:flex;align-items:center;gap:12px;}
.hamburger{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  align-items:center;justify-content:center;font-size:18px;color:var(--ink);background:var(--surface);
}
.drawer{
  position:fixed;inset:0;background:var(--ink);z-index:80;padding:28px 24px;
  transform:translateX(100%);transition:transform .28s cubic-bezier(.2,.7,.3,1);
  display:flex;flex-direction:column;gap:8px;overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-close{align-self:flex-end;width:44px;height:44px;border:1px solid rgba(255,255,255,.28);border-radius:10px;color:#fff;font-size:18px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}
.drawer-link{
  display:flex;align-items:center;gap:14px;height:56px;color:rgba(255,255,255,.86);
  font-size:17px;font-weight:600;border-bottom:1px solid rgba(255,255,255,.1);
}
.drawer-link span.idx{font-size:13px;color:var(--lime);font-family:"JetBrains Mono",ui-monospace,monospace;width:26px;}
.drawer-link.active{color:#fff;}
.drawer-link.active span.idx{color:var(--accent);}
.drawer-cta{margin-top:22px;}

/* ------- 按钮 ------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-weight:700;font-size:15px;border-radius:var(--radius-btn);
  padding:14px 28px;min-height:48px;
  transition:background .2s cubic-bezier(.2,.7,.3,1),color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn i{transition:transform .2s ease;}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--ink);transform:translateY(-1px);}
.btn-primary:hover i{transform:translateX(4px);}
.btn-ghost{border:1.5px solid var(--ink);color:var(--ink);background:transparent;}
.btn-ghost:hover{background:var(--ink);color:#fff;}
.btn-sm{padding:10px 20px;min-height:44px;font-size:14px;}
.link-text{color:var(--moss);font-weight:600;border-bottom:1px solid var(--line);padding-bottom:2px;transition:color .2s ease,border-color .2s ease;}
.link-text:hover{color:var(--accent);border-color:var(--accent);}
.link-text i{margin-left:6px;font-size:12px;}

/* ------- Hero ------- */
.hero{padding:88px 0 96px;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.badge{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;
  letter-spacing:.08em;color:var(--moss);border:1px solid var(--moss);
  padding:6px 14px;border-radius:999px;background:rgba(31,138,99,.06);
}
.hero h1{
  font-size:clamp(2.6rem,6vw,5rem);font-weight:900;line-height:1.05;
  letter-spacing:-.02em;margin:24px 0 20px;
}
.hero h1 em{font-style:normal;color:var(--accent);}
.hero-sub{font-size:18px;color:var(--muted);max-width:560px;line-height:1.8;}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.trust-row{display:flex;flex-wrap:wrap;gap:28px;margin-top:38px;padding-top:26px;border-top:1px solid var(--line);}
.trust-item{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ink-soft);font-weight:600;}
.trust-item i{color:var(--moss);font-size:15px;}
.hero-figure{position:relative;}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:16px;box-shadow:var(--shadow-hover);}
.hero-tag{
  position:absolute;right:-10px;bottom:-10px;background:var(--accent);color:#fff;
  padding:14px 20px;display:flex;flex-direction:column;gap:2px;
  clip-path:polygon(14px 0,100% 0,100% 100%,0 100%,0 14px);
  box-shadow:0 16px 30px -18px rgba(255,74,23,.8);
}
.hero-tag-num{font-size:26px;font-weight:800;line-height:1;}
.hero-tag-txt{font-size:12px;letter-spacing:.08em;color:rgba(255,255,255,.86);}

/* ------- 板块标题 ------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:48px;}
.section-no{font-size:13px;letter-spacing:.28em;color:var(--muted);font-weight:700;}
.section-title{
  font-size:clamp(1.9rem,3.6vw,3rem);font-weight:900;line-height:1.15;
  margin-top:12px;padding-left:18px;position:relative;
}
.section-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;background:var(--accent);border-radius:2px;}
.section-desc{color:var(--muted);font-size:15px;max-width:420px;}

/* ------- 服务 Bento ------- */
.bento{display:grid;grid-template-columns:6fr 6fr;gap:24px;}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-soft);padding:28px;
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.card-lg{display:flex;flex-direction:column;gap:20px;padding:0;overflow:hidden;}
.card-lg img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;}
.card-lg-body{padding:0 28px 28px;}
.card-lg h3{font-size:24px;font-weight:900;margin-bottom:14px;}
.card-lg p{color:var(--muted);font-size:15px;}
.point-list{margin-top:18px;display:flex;flex-direction:column;gap:12px;}
.point-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-soft);}
.point-list li::before{content:"";width:8px;height:8px;background:var(--accent);border-radius:1px;margin-top:9px;flex-shrink:0;}
.bento-side{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:24px;}
.card-mini h4{font-size:17px;font-weight:800;margin:14px 0 8px;}
.card-mini p{font-size:14px;color:var(--muted);line-height:1.7;}
.card-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(31,138,99,.1);color:var(--moss);font-size:18px;
}

/* ------- 数据条 ------- */
.stat-band{background:var(--ink);color:#fff;padding:72px 0;}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.stat-cell{padding:0 28px;border-left:1px solid rgba(255,255,255,.14);}
.stat-cell:first-child{border-left:0;padding-left:0;}
.stat-num{font-size:clamp(2rem,4vw,2.9rem);font-weight:800;line-height:1;color:#fff;}
.stat-unit{font-size:14px;font-weight:600;color:var(--lime);margin-left:6px;}
.stat-txt{margin-top:12px;font-size:14px;color:rgba(255,255,255,.66);letter-spacing:.02em;}

/* ------- 案例 ------- */
.case-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start;}
.case-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-soft);transition:transform .22s ease,box-shadow .22s ease;}
.case-card:nth-child(2){margin-top:44px;}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.case-thumb{overflow:hidden;}
.case-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;transition:transform .3s ease;}
.case-card:hover .case-thumb img{transform:scale(1.03);}
.case-body{padding:24px 24px 28px;}
.case-meta{display:flex;align-items:center;gap:12px;font-size:12px;color:var(--muted);letter-spacing:.06em;margin-bottom:12px;}
.case-body h3{font-size:19px;font-weight:800;line-height:1.4;}
.case-body .link-text{display:inline-block;margin-top:14px;font-size:14px;}

/* ------- 方案步骤 ------- */
.plan-grid{display:grid;grid-template-columns:4fr 8fr;gap:48px;}
.plan-sticky{position:sticky;top:112px;}
.step-list{border-top:1px solid var(--line);}
.step-item{display:grid;grid-template-columns:88px 1fr;gap:20px;padding:28px 0;border-bottom:1px solid var(--line);transition:background .2s ease;}
.step-item:hover{background:rgba(31,138,99,.05);}
.step-no{font-size:28px;font-weight:800;color:var(--line);line-height:1;}
.step-item h4{font-size:18px;font-weight:800;margin-bottom:8px;}
.step-item p{font-size:15px;color:var(--muted);}

/* ------- 最新资讯 ------- */
.news-grid{display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:start;}
.news-lead{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-soft);transition:transform .22s ease,box-shadow .22s ease;}
.news-lead:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.news-lead img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;}
.news-lead-body{padding:26px 28px 30px;}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:12px;color:var(--muted);letter-spacing:.06em;}
.news-lead-body h3{font-size:22px;font-weight:900;line-height:1.45;margin:14px 0 12px;transition:color .2s ease;}
.news-lead:hover h3{color:var(--moss);}
.news-lead-body p{font-size:15px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.tag{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.08em;color:var(--moss);border:1px solid var(--line);background:rgba(31,138,99,.06);padding:3px 10px;border-radius:999px;}
.news-list{display:flex;flex-direction:column;border-top:1px solid var(--line);}
.news-row{display:block;padding:22px 4px;border-bottom:1px solid var(--line);transition:padding-left .2s ease,background .2s ease;}
.news-row:hover{background:rgba(31,138,99,.05);padding-left:12px;}
.news-row h4{font-size:16px;font-weight:700;line-height:1.6;margin-top:10px;transition:color .2s ease;}
.news-row:hover h4{color:var(--moss);}
.news-empty{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:48px 32px;text-align:center;color:var(--muted);
}
.news-empty i{font-size:26px;color:var(--moss);display:block;margin-bottom:14px;}
.news-empty p{font-size:15px;margin-bottom:16px;}

/* ------- FAQ ------- */
.faq-wrap{max-width:900px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:18px;min-height:64px;
  padding:14px 0;text-align:left;font-size:17px;font-weight:600;color:var(--ink);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--moss);}
.faq-no{font-size:13px;color:var(--muted);font-weight:700;letter-spacing:.1em;flex-shrink:0;}
.faq-q-txt{flex:1;line-height:1.6;}
.faq-icon{
  width:28px;height:28px;flex-shrink:0;border:1px solid var(--line);border-radius:999px;
  display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:12px;
  transition:transform .24s ease,color .24s ease,border-color .24s ease,background .24s ease;
}
.faq-item.open .faq-icon{transform:rotate(45deg);color:#fff;background:var(--accent);border-color:var(--accent);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s cubic-bezier(.2,.7,.3,1);}
.faq-a-inner{padding:0 0 24px 42px;font-size:15px;line-height:1.8;color:var(--muted);}

/* ------- 联系 ------- */
.contact{background:var(--ink);color:#fff;padding:96px 0;}
.contact-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;}
.contact h2{font-size:clamp(1.8rem,3.2vw,2.4rem);font-weight:900;line-height:1.2;color:#fff;padding-left:18px;position:relative;}
.contact h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;background:var(--accent);border-radius:2px;}
.contact-lead{color:rgba(255,255,255,.68);font-size:15px;margin:20px 0 36px;max-width:520px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.field{margin-bottom:20px;}
.field label{display:block;font-size:13px;font-weight:600;letter-spacing:.04em;color:rgba(255,255,255,.76);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;height:48px;background:transparent;border:1px solid rgba(255,255,255,.24);
  border-radius:var(--radius-btn);padding:0 16px;color:#fff;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:120px;padding:14px 16px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:rgba(255,255,255,.38);}
.field select option{color:var(--ink);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 2px rgba(255,74,23,.28);
}
.form-note{font-size:13px;color:rgba(255,255,255,.5);margin-top:16px;}
.form-msg{margin-top:16px;font-size:14px;color:var(--lime);display:none;}
.form-msg.show{display:block;}
.contact-info{display:flex;flex-direction:column;gap:22px;}
.info-item{display:flex;gap:16px;align-items:flex-start;padding-bottom:22px;border-bottom:1px solid rgba(255,255,255,.12);}
.info-item:last-child{border-bottom:0;}
.info-icon{
  width:42px;height:42px;flex-shrink:0;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(203,232,107,.14);color:var(--lime);font-size:16px;
}
.info-item h4{font-size:14px;letter-spacing:.08em;color:rgba(255,255,255,.6);font-weight:600;margin-bottom:6px;}
.info-item p{font-size:16px;color:#fff;font-weight:600;line-height:1.6;}

/* ------- CTA 条 ------- */
.cta-band{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:56px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;}
.cta-inner h3{font-size:clamp(1.3rem,2.4vw,1.75rem);font-weight:900;}
.cta-inner p{font-size:15px;color:var(--muted);margin-top:8px;}

/* ------- 页脚 ------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.7);padding:72px 0 28px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;}
.footer-brand .brand-mark{color:#fff;font-size:21px;}
.footer-brand .brand-sub{color:var(--lime);}
.footer-brand p{font-size:14px;line-height:1.8;margin-top:18px;max-width:300px;color:rgba(255,255,255,.6);}
.footer-col h4{font-size:14px;letter-spacing:.08em;color:#fff;font-weight:700;margin-bottom:20px;}
.footer-col li{margin-bottom:12px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.7);transition:color .2s ease;}
.footer-col a:hover{color:var(--lime);}
.footer-col .plain{font-size:14px;color:rgba(255,255,255,.7);}
.footer-bottom{
  margin-top:56px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ------- 动效 ------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s cubic-bezier(.2,.7,.3,1);}
.reveal.in{opacity:1;transform:none;}

/* ------- 响应式 ------- */
@media (max-width:1024px){
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .hero{padding:64px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .bento{grid-template-columns:1fr;}
  .plan-grid{grid-template-columns:1fr;gap:32px;}
  .plan-sticky{position:static;}
  .news-grid{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;gap:40px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .stat-grid{grid-template-columns:1fr 1fr;row-gap:40px;}
  .stat-cell:nth-child(3){border-left:0;padding-left:0;}
  .nav-links{display:none;}
  .hamburger{display:flex;}
  .nav-right .btn-primary{display:none;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .topbar-note{display:none;}
  .topbar-inner{justify-content:flex-end;}
  .hero h1{font-size:clamp(2.1rem,8vw,2.9rem);}
  .hero-sub{font-size:16px;}
  .bento-side{grid-template-columns:1fr;grid-template-rows:auto;}
  .case-grid{grid-template-columns:1fr;}
  .case-card:nth-child(2){margin-top:0;}
  .form-row{grid-template-columns:1fr;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;}
  .trust-row{gap:18px;}
  .faq-q{font-size:16px;min-height:56px;}
  .faq-a-inner{padding-left:0;}
  .stat-cell{padding:0 18px;}
  .stat-cell:nth-child(2n+1){border-left:0;padding-left:0;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:520px){
  .container{padding:0 20px;}
  .hero-tag{right:8px;bottom:8px;padding:10px 14px;}
  .hero-tag-num{font-size:20px;}
  .card{padding:20px;}
  .card-lg-body{padding:0 20px 22px;}
  .brand-sub{display:none;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --ink:#10231C;
  --ink-soft:#1A3229;
  --accent:#FF4A17;
  --moss:#1F8A63;
  --lime:#CBE86B;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --surface-2:#EFEBE2;
  --line:#E2DED5;
  --muted:#6E6A61;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:14px;
  --shadow-sm:0 1px 2px rgba(16,35,28,.04);
  --shadow-lg:0 18px 40px -20px rgba(16,35,28,.35);
  --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(--bg);color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4{margin:0}
p{margin:0}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.num{font-family:"Barlow Condensed","JetBrains Mono",ui-monospace,monospace;font-variant-numeric:tabular-nums}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--ink);color:rgba(255,255,255,.78);font-size:12px;letter-spacing:.05em}
.topbar-inner{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-left{display:flex;align-items:center;gap:12px}
.topbar-left .dot{width:6px;height:6px;border-radius:50%;background:var(--lime);display:inline-block}
.topbar-right{display:flex;align-items:center;gap:14px}
.topbar-right .sep{width:1px;height:14px;background:rgba(255,255,255,.22);display:inline-block}
.topbar-link{color:rgba(255,255,255,.78);transition:color .2s var(--ease)}
.topbar-link:hover{color:var(--lime)}
.topbar-pill{
  display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:999px;
  background:var(--accent);color:#fff;font-weight:700;letter-spacing:.04em;transition:background .2s var(--ease);
}
.topbar-pill:hover{background:#fff;color:var(--ink)}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(246,244,239,.96);
  border-bottom:1px solid var(--line);backdrop-filter:blur(10px);
  transition:box-shadow .22s var(--ease),background .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 14px 34px -26px rgba(16,35,28,.6);background:rgba(246,244,239,.92)}
.header-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;flex-direction:column;justify-content:center;line-height:1.1}
.brand-mark{font-size:21px;font-weight:900;letter-spacing:-.01em;color:var(--ink)}
.brand-sub{font-size:10px;letter-spacing:.24em;color:var(--moss);font-weight:600;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;display:inline-block;padding:10px 14px;font-size:15px;font-weight:500;
  color:#2C3D35;border-radius:8px;transition:color .18s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;background:var(--accent);
  transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--ink);font-weight:700}
.header-actions{display:flex;align-items:center;gap:12px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);padding:14px 28px;font-size:15px;font-weight:700;
  border:1.5px solid transparent;min-height:44px;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.btn .btn-arrow{transition:transform .2s var(--ease)}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--ink);transform:translateY(-1px)}
.btn-primary:hover .btn-arrow{transform:translateX(4px)}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-sm{padding:10px 20px;font-size:14px;min-height:40px}
.text-link{
  color:var(--moss);font-weight:600;border-bottom:1px solid rgba(31,138,99,.45);
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.text-link:hover{color:var(--accent);border-color:var(--accent)}

/* 移动端菜单 */
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  align-items:center;justify-content:center;background:var(--surface);
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.mobile-drawer{
  display:none;position:fixed;inset:0;z-index:80;background:var(--bg);
  padding:20px;overflow-y:auto;
}
.mobile-drawer.open{display:block}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);border-radius:10px;font-size:20px;line-height:1;background:var(--surface)}
.drawer-nav{margin-top:12px;display:flex;flex-direction:column}
.drawer-link{
  display:flex;align-items:center;gap:14px;height:56px;padding:0 4px;
  font-size:17px;font-weight:600;border-bottom:1px solid var(--line);
}
.drawer-link .idx{font-size:12px;color:var(--muted);letter-spacing:.08em}
.drawer-link.active{color:var(--moss)}
.drawer-cta{margin-top:24px;display:flex;flex-direction:column;gap:12px}

/* ---------- 面包屑 ---------- */
.breadcrumb-wrap{padding:26px 0 0}
.breadcrumb{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li::after{content:"/";color:#C3BDB1}
.breadcrumb li:last-child::after{content:""}
.breadcrumb a{color:var(--muted);transition:color .18s var(--ease)}
.breadcrumb a:hover{color:var(--moss)}
.breadcrumb .current{color:#8B8579}

/* ---------- 文章头部 ---------- */
.article-shell{max-width:1140px;margin:0 auto;padding:0 32px}
.article-head{padding:28px 0 0}
.badge-cat{
  display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:999px;
  border:1px solid rgba(31,138,99,.45);color:var(--moss);font-size:12px;font-weight:700;letter-spacing:.08em;
}
.badge-cat .badge-dot{width:6px;height:6px;border-radius:50%;background:var(--moss)}
.article-title{
  margin-top:20px;font-size:clamp(2.1rem,4.6vw,3.4rem);font-weight:900;line-height:1.15;
  letter-spacing:-.02em;color:var(--ink);overflow-wrap:break-word;
}
.article-meta{
  margin-top:20px;display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:14px;color:var(--muted);
}
.article-meta .meta-sep{width:1px;height:14px;background:var(--line);display:inline-block}
.article-cover{margin:32px 0 0;border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);background:var(--surface-2)}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ---------- 正文 + 侧栏 ---------- */
.article-grid{
  display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);
  gap:48px;margin-top:40px;align-items:start;
}
.article-body{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:40px;box-shadow:var(--shadow-sm);font-size:17px;line-height:1.9;color:#20332C;
  overflow-wrap:break-word;
}
.article-body > * + *{margin-top:1.1em}
.article-body h2{
  position:relative;font-size:1.55rem;font-weight:800;line-height:1.35;color:var(--ink);
  padding-left:16px;margin-top:40px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--accent);
}
.article-body h3{font-size:1.2rem;font-weight:700;color:var(--ink);margin-top:28px}
.article-body p{color:#2B3D35}
.article-body ul{list-style:none}
.article-body ul li{position:relative;padding-left:20px;margin:.35em 0}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.78em;width:7px;height:7px;background:var(--moss);
}
.article-body ol{padding-left:1.5em}
.article-body ol li{margin:.4em 0}
.article-body blockquote{
  margin:24px 0;padding:16px 22px;background:var(--surface-2);border-left:4px solid var(--accent);
  color:#3B4A43;
}
.article-body img{border-radius:var(--radius-img);margin:0}
.article-body a{color:var(--moss);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--accent)}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;background:var(--surface)}
.article-body thead th{background:var(--ink);color:#fff;font-weight:600;text-align:left}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line)}
.article-body tbody tr:nth-child(even){background:var(--surface-2)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.article-body code{background:var(--surface-2);padding:2px 6px;border-radius:6px;font-size:.92em}

.empty-state{
  text-align:center;padding:56px 24px;background:var(--surface-2);
  border-radius:var(--radius-card);border:1px dashed #D6D0C4;
}
.empty-state .empty-icon{
  width:48px;height:48px;border-radius:14px;background:var(--surface);border:1px solid var(--line);
  margin:0 auto 16px;display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--moss);
}
.empty-state h2{font-size:1.2rem;font-weight:800;margin-bottom:8px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:20px}

.article-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-sm);
}
.side-card h3{
  font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--muted);
  padding-bottom:12px;border-bottom:1px solid var(--line);margin-bottom:16px;
}
.side-list{list-style:none;display:flex;flex-direction:column;gap:16px}
.side-list li a{display:block;font-size:15px;font-weight:600;line-height:1.5;color:var(--ink);transition:color .18s var(--ease)}
.side-list li a:hover{color:var(--moss)}
.side-list .side-desc{display:block;font-size:13px;color:var(--muted);font-weight:400;margin-top:4px;line-height:1.6}
.side-links{display:flex;flex-direction:column;gap:6px}
.side-link{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:11px 12px;border-radius:10px;font-size:14px;color:#33443C;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.side-link:hover{background:var(--surface-2);color:var(--ink)}
.side-link.active{background:rgba(31,138,99,.1);color:var(--moss);font-weight:700}
.side-link .arrow{color:var(--muted);font-size:13px}
.side-link:hover .arrow{color:var(--accent)}
.side-empty{font-size:14px;color:var(--muted);background:var(--surface-2);border-radius:10px;padding:14px}

/* ---------- CTA 条 ---------- */
.cta-band{
  margin:56px 0 0;background:var(--surface-2);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:34px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(1.3rem,2.4vw,1.8rem);font-weight:900;letter-spacing:-.01em}
.cta-band p{color:var(--muted);font-size:15px;margin-top:8px;max-width:640px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand .brand-mark{color:#fff;font-size:22px;font-weight:900;display:block;line-height:1.1}
.footer-brand .brand-sub{color:var(--lime);font-size:10px;letter-spacing:.24em;font-weight:600}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:360px}
.footer-col h4{font-size:13px;font-weight:700;letter-spacing:.1em;color:#fff;margin-bottom:18px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);transition:color .18s var(--ease)}
.footer-col a:hover{color:#fff}
.footer-col .plain{font-size:14px;color:rgba(255,255,255,.72)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.58);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .container,.article-shell{padding:0 24px}
  .nav-links{display:none}
  .menu-toggle{display:inline-flex}
  .article-grid{grid-template-columns:minmax(0,1fr);gap:32px}
  .article-side{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .header-inner{height:64px}
  .header-actions .btn{display:none}
  .article-body{padding:28px 22px;font-size:16px;line-height:1.85}
  .cta-band{padding:26px 22px}
  .site-footer{padding-top:56px;margin-top:72px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .article-title{font-size:clamp(1.7rem,7vw,2.2rem)}
}
@media (max-width:520px){
  .container,.article-shell{padding:0 20px}
  .topbar-left{display:none}
  .topbar-inner{justify-content:flex-end}
  .article-cover{margin-top:24px}
  .article-cover img{aspect-ratio:4/3}
  .breadcrumb{font-size:12px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --ink:#10231C;
  --ink-soft:#1A3229;
  --accent:#FF4A17;
  --moss:#1F8A63;
  --lime:#CBE86B;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --line:#E2DED5;
  --muted:#6E6A61;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(16,35,28,.04);
  --shadow-hover:0 18px 40px -20px rgba(16,35,28,.35);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font:inherit;color:inherit}
.num{font-family:"Barlow Condensed","JetBrains Mono",ui-monospace,monospace;font-variant-numeric:tabular-nums;font-weight:800}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;
}
::selection{background:var(--lime);color:var(--ink)}

/* ============ 顶部信息条 ============ */
.site-header{position:sticky;top:0;z-index:80;background:var(--bg)}
.topbar{height:36px;background:var(--ink);color:rgba(255,255,255,.78);font-size:12px;letter-spacing:.05em;display:flex;align-items:center}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-note{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-actions{display:flex;align-items:center;gap:16px;flex:none}
.topbar-divider{width:1px;height:14px;background:rgba(255,255,255,.22);display:inline-block}
.topbar-link{color:rgba(255,255,255,.72);transition:color .18s var(--ease)}
.topbar-link:hover{color:#fff}
.topbar-pill{background:var(--accent);color:#fff;font-weight:700;padding:4px 14px;border-radius:999px;transition:background .2s var(--ease)}
.topbar-pill:hover{background:#fff;color:var(--ink)}

/* ============ 主导航 ============ */
.nav-bar{height:72px;background:#FCFBF8;border-bottom:1px solid var(--line);transition:box-shadow .22s var(--ease),background .22s var(--ease)}
.site-header.is-scrolled .nav-bar{box-shadow:0 10px 30px -22px rgba(16,35,28,.55);background:rgba(252,251,248,.94);backdrop-filter:saturate(140%) blur(6px)}
.nav-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:baseline;gap:10px;flex:none}
.brand-mark{font-size:21px;font-weight:900;letter-spacing:-.01em;color:var(--ink)}
.brand-sub{font-family:"Barlow Condensed","JetBrains Mono",ui-monospace,monospace;font-size:11px;letter-spacing:.24em;color:var(--muted)}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-link{position:relative;display:inline-block;padding:26px 2px;font-size:15px;font-weight:500;color:var(--ink);white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:0;bottom:16px;width:100%;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{font-weight:700}
.nav-actions{display:flex;align-items:center;gap:12px;flex:none}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;align-items:center;justify-content:center;background:var(--surface)}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative;transition:transform .2s var(--ease)}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;gap:8px;border-radius:var(--radius-btn);font-weight:700;padding:14px 28px;transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease)}
.btn .arrow{transition:transform .2s var(--ease)}
.btn:hover .arrow{transform:translateX(4px)}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--ink);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;border:1.5px solid var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-sm{padding:10px 20px;font-size:14px}
.text-link{color:var(--moss);font-weight:600;border-bottom:1px solid var(--moss);padding-bottom:2px;transition:color .2s var(--ease),border-color .2s var(--ease)}
.text-link:hover{color:var(--accent);border-color:var(--accent)}

/* ============ 移动抽屉 ============ */
.drawer{position:fixed;inset:0;z-index:120;background:#FCFBF8;display:none;flex-direction:column;padding:22px 24px 36px}
.drawer.is-open{display:flex}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line)}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);border-radius:10px;font-size:20px;line-height:1;display:flex;align-items:center;justify-content:center}
.drawer-nav{margin-top:10px;display:flex;flex-direction:column}
.drawer-nav a{display:flex;align-items:center;gap:16px;height:56px;border-bottom:1px solid var(--line);font-size:17px;font-weight:600}
.drawer-nav a .idx{font-family:"Barlow Condensed",ui-monospace,monospace;font-size:13px;letter-spacing:.12em;color:var(--muted);width:26px}
.drawer-nav a.active{color:var(--accent)}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;padding-top:24px}
.drawer-foot .plain{font-size:14px;color:var(--muted)}

/* ============ 面包屑 ============ */
.crumbs{font-size:13px;color:rgba(255,255,255,.66)}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li::after{content:"/";color:rgba(255,255,255,.34)}
.crumbs li:last-child::after{content:""}
.crumbs a{transition:color .2s var(--ease)}
.crumbs a:hover{color:var(--lime)}
.crumbs .current{color:#fff;font-weight:600}

/* ============ Banner ============ */
.page-banner{position:relative;min-height:320px;display:flex;align-items:center;background-color:var(--ink);background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;overflow:hidden}
.page-banner::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(16,35,28,.82) 0%,rgba(16,35,28,.65) 58%,rgba(16,35,28,.5) 100%)}
.page-banner .container{position:relative;z-index:2;padding-top:56px;padding-bottom:56px}
.banner-inner{max-width:740px;display:flex;flex-direction:column;gap:18px}
.banner-badge{align-self:flex-start;display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border:1px solid rgba(203,232,107,.6);border-radius:999px;color:var(--lime);font-size:12px;letter-spacing:.12em;font-weight:600}
.banner-title{font-size:clamp(2.2rem,5vw,3.6rem);font-weight:900;line-height:1.08;letter-spacing:-.02em;color:#fff}
.banner-sub{font-size:18px;line-height:1.7;color:rgba(255,255,255,.84);max-width:620px}
.banner-meta{display:flex;flex-wrap:wrap;gap:22px;padding-top:6px}
.banner-meta span{font-size:13px;color:rgba(255,255,255,.7);display:flex;align-items:center;gap:8px}
.banner-meta .dot{width:6px;height:6px;background:var(--accent);border-radius:2px;display:inline-block}

/* ============ 数据条 ============ */
.stats-band{background:var(--ink);color:#fff}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat-item{padding:44px 28px;border-left:1px solid rgba(255,255,255,.12)}
.stat-item:first-child{border-left:0}
.stat-num{font-size:clamp(2rem,3.4vw,2.6rem);line-height:1;color:#fff;letter-spacing:-.02em}
.stat-unit{font-size:14px;font-weight:600;color:var(--lime);margin-left:4px;letter-spacing:.04em}
.stat-desc{margin-top:12px;font-size:14px;line-height:1.6;color:rgba(255,255,255,.66)}

/* ============ 板块标题 ============ */
.section-head{display:flex;flex-direction:column;gap:16px;max-width:760px;margin-bottom:56px}
.eyebrow{display:flex;align-items:center;gap:12px;font-size:13px;letter-spacing:.16em;color:var(--muted);font-weight:700}
.eyebrow .num{font-size:14px;color:var(--accent);letter-spacing:.08em}
.section-title{font-size:clamp(1.9rem,3.6vw,2.6rem);font-weight:900;line-height:1.18;letter-spacing:-.02em;position:relative;padding-left:18px}
.section-title::before{content:"";position:absolute;left:0;top:.22em;bottom:.18em;width:4px;background:var(--accent);border-radius:2px}
.section-lead{font-size:16px;color:var(--muted);line-height:1.85}

/* ============ 图文交错 ============ */
.flow-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.flow-row + .flow-row{margin-top:80px}
.flow-row.reverse .flow-media{order:2}
.flow-media{position:relative;border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);border:1px solid var(--line);background:var(--surface)}
.flow-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .35s var(--ease)}
.flow-media:hover img{transform:scale(1.03)}
.flow-media .tag-dock{position:absolute;left:18px;bottom:18px;background:rgba(16,35,28,.88);color:#fff;font-size:12px;letter-spacing:.1em;font-weight:700;padding:7px 14px;border-radius:999px;border-left:3px solid var(--accent)}
.flow-body{display:flex;flex-direction:column;gap:16px}
.flow-index{font-family:"Barlow Condensed",ui-monospace,monospace;font-size:13px;letter-spacing:.2em;color:var(--muted);font-weight:700}
.flow-title{font-size:clamp(1.4rem,2.4vw,1.9rem);font-weight:900;line-height:1.25;letter-spacing:-.01em}
.flow-text{font-size:16px;color:var(--muted);line-height:1.85}
.flow-list{display:flex;flex-direction:column;gap:12px;margin-top:4px}
.flow-list li{position:relative;padding-left:20px;font-size:15px;color:var(--ink);line-height:1.7}
.flow-list li::before{content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;background:var(--moss);border-radius:2px}
.flow-link{margin-top:6px}

/* ============ FAQ ============ */
.faq-wrap{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;display:flex;align-items:center;gap:20px;padding:22px 4px;text-align:left;min-height:64px;transition:color .2s var(--ease)}
.faq-q:hover .faq-title{color:var(--moss)}
.faq-idx{font-family:"Barlow Condensed",ui-monospace,monospace;font-size:14px;letter-spacing:.12em;color:var(--muted);flex:none;width:34px;padding-top:2px}
.faq-title{font-size:17px;font-weight:600;line-height:1.6;flex:1}
.faq-icon{flex:none;width:30px;height:30px;border:1px solid var(--line);border-radius:999px;display:flex;align-items:center;justify-content:center;color:var(--ink);transition:transform .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease)}
.faq-icon svg{width:14px;height:14px}
.faq-item.is-open .faq-icon{transform:rotate(45deg);color:var(--accent);border-color:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a-inner{padding:0 4px 26px 54px;font-size:15px;line-height:1.85;color:var(--muted)}

/* ============ CTA 条 ============ */
.cta-band{background:#EFEBE2;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:36px;padding:52px 0}
.cta-copy{max-width:680px;display:flex;flex-direction:column;gap:12px}
.cta-title{font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:900;line-height:1.22;letter-spacing:-.01em}
.cta-text{font-size:15px;color:var(--muted);line-height:1.8}
.cta-actions{display:flex;gap:14px;flex:none}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:76px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:44px;padding-bottom:52px}
.footer-brand .brand{gap:12px}
.footer-brand .brand-mark{color:#fff;font-size:22px}
.footer-brand .brand-sub{color:rgba(255,255,255,.5)}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:340px}
.footer-col h4{font-size:14px;letter-spacing:.08em;color:#fff;font-weight:700;margin-bottom:20px}
.footer-col ul{display:flex;flex-direction:column;gap:14px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68);transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--lime)}
.footer-col .plain{font-size:14px;color:rgba(255,255,255,.62)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:24px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:13px;color:rgba(255,255,255,.5)}

/* ============ 进场动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .flow-row{grid-template-columns:1fr;gap:32px}
  .flow-row.reverse .flow-media{order:0}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(3){border-left:0}
  .stat-item{border-top:1px solid rgba(255,255,255,.12)}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-top:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .topbar-note{display:none}
  .topbar .container{justify-content:flex-end}
  .page-banner{min-height:220px}
  .page-banner .container{padding-top:44px;padding-bottom:44px}
  .banner-sub{font-size:16px}
  .section-head{margin-bottom:36px}
  .flow-row + .flow-row{margin-top:56px}
  .faq-idx{width:28px}
  .faq-a-inner{padding-left:32px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:520px){
  .container{padding:0 20px}
  .nav-bar,.nav-inner{height:64px}
  .brand-sub{display:none}
  .stats-grid{grid-template-columns:1fr}
  .stat-item{border-left:0}
  .cta-actions{flex-direction:column;width:100%}
  .cta-actions .btn{width:100%;justify-content:center;min-height:44px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .btn,.faq-icon,.flow-media img,.nav-link::after{transition:none}
}

/* roulang page: category2 */
:root{
  --ink:#10231C;
  --ink-soft:#1A3229;
  --accent:#FF4A17;
  --moss:#1F8A63;
  --lime:#CBE86B;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --line:#E2DED5;
  --muted:#6E6A61;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow-sm:0 1px 2px rgba(16,35,28,.04);
  --shadow-hover:0 18px 40px -20px rgba(16,35,28,.35);
  --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(--bg);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
.num{font-family:"Barlow Condensed","JetBrains Mono",ui-monospace,monospace;font-variant-numeric:tabular-nums;letter-spacing:.02em;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
a:focus:not(:focus-visible),button:focus:not(:focus-visible){outline:none;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* 顶部信息条 */
.topbar{background:var(--ink);color:rgba(255,255,255,.82);font-size:12px;letter-spacing:.05em;height:36px;display:flex;align-items:center;}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-left{display:flex;align-items:center;gap:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-left i{color:var(--lime);}
.topbar-right{display:flex;align-items:center;gap:14px;white-space:nowrap;}
.topbar-sep{width:1px;height:14px;background:rgba(255,255,255,.22);}
.topbar-link{color:rgba(255,255,255,.85);transition:color .2s var(--ease);}
.topbar-link:hover{color:var(--lime);}
.topbar-cta{background:var(--accent);color:#fff;font-weight:700;padding:5px 14px;border-radius:999px;transition:background .2s var(--ease),transform .2s var(--ease);}
.topbar-cta:hover{background:var(--moss);transform:translateY(-1px);}

/* 主导航 */
.site-header{position:sticky;top:0;z-index:60;background:rgba(246,244,239,.96);border-bottom:1px solid var(--line);transition:box-shadow .2s var(--ease),background .2s var(--ease);}
.site-header.scrolled{box-shadow:0 10px 30px -22px rgba(16,35,28,.55);background:rgba(246,244,239,.92);backdrop-filter:blur(6px);}
.nav-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px;}
.brand{display:flex;align-items:center;gap:10px;line-height:1.1;}
.brand-mark{font-size:20px;font-weight:900;letter-spacing:.04em;color:var(--ink);}
.brand-dot{width:8px;height:8px;background:var(--accent);border-radius:2px;flex:0 0 auto;}
.brand-sub{font-family:"Barlow Condensed",ui-monospace,monospace;font-size:11px;letter-spacing:.22em;color:var(--muted);border-left:1px solid var(--line);padding-left:10px;}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-link{font-size:15px;font-weight:500;color:var(--ink);position:relative;padding:26px 0;transition:color .2s var(--ease);}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:18px;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link:hover{color:var(--ink);}
.nav-link.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:14px;}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:var(--surface);align-items:center;justify-content:center;flex-direction:column;gap:5px;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);transition:transform .2s var(--ease),opacity .2s var(--ease);}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* 抽屉 */
.drawer{position:fixed;inset:0;z-index:80;background:var(--ink);color:#fff;transform:translateX(100%);transition:transform .28s var(--ease);display:flex;flex-direction:column;padding:24px 20px;overflow-y:auto;}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:20px;border-bottom:1px solid rgba(255,255,255,.15);}
.drawer-close{width:44px;height:44px;border-radius:10px;border:1px solid rgba(255,255,255,.25);display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;}
.drawer-nav{display:flex;flex-direction:column;margin-top:8px;}
.drawer-nav a{display:flex;align-items:center;gap:14px;min-height:56px;border-bottom:1px solid rgba(255,255,255,.1);font-size:16px;font-weight:600;color:rgba(255,255,255,.88);transition:color .2s var(--ease);}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--lime);}
.drawer-nav .num{font-size:13px;color:rgba(255,255,255,.42);width:26px;}
.drawer-foot{margin-top:auto;padding-top:24px;font-size:13px;color:rgba(255,255,255,.55);}

/* 按钮 */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:15px;padding:14px 28px;border-radius:var(--radius-btn);transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);}
.btn i{transition:transform .2s var(--ease);}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--shadow-sm);}
.btn-primary:hover{background:var(--ink);color:#fff;transform:translateY(-1px);}
.btn-primary:hover i{transform:translateX(4px);}
.btn-ghost{border:1.5px solid var(--ink);color:var(--ink);background:transparent;}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-1px);}
.btn-sm{padding:10px 20px;font-size:14px;}
.link-arrow{color:var(--moss);font-weight:600;font-size:14px;border-bottom:1px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease);}
.link-arrow:hover{color:var(--accent);border-color:var(--accent);}

/* Banner */
.page-banner{position:relative;min-height:320px;display:flex;align-items:flex-end;background-image:linear-gradient(90deg,rgba(16,35,28,.55),rgba(16,35,28,.55)),url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;overflow:hidden;}
.page-banner::after{content:"";position:absolute;inset:0;background-image:linear-gradient(55deg,rgba(16,35,28,.55) 0%,rgba(16,35,28,.55) 55%,rgba(16,35,28,.35) 100%);}
.banner-inner{position:relative;z-index:2;padding-top:72px;padding-bottom:56px;max-width:820px;color:#fff;}
.breadcrumb{font-size:13px;color:rgba(255,255,255,.72);margin-bottom:20px;}
.breadcrumb ol{display:flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";margin-right:8px;color:rgba(255,255,255,.4);}
.breadcrumb a{transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--lime);}
.breadcrumb li[aria-current]{color:#fff;}
.badge{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;padding:6px 14px;border-radius:999px;border:1px solid var(--moss);color:var(--moss);background:rgba(255,255,255,.9);font-weight:600;}
.banner-badge{border-color:rgba(203,232,107,.7);color:var(--lime);background:rgba(16,35,28,.35);margin-bottom:16px;}
.page-banner h1{font-size:clamp(2rem,4.4vw,3.2rem);font-weight:900;line-height:1.12;letter-spacing:-.02em;color:#fff;}
.page-banner p{margin-top:16px;font-size:17px;line-height:1.75;color:rgba(255,255,255,.86);max-width:640px;}

/* 板块 */
section{padding:96px 0;}
.section-head{display:flex;flex-direction:column;gap:14px;margin-bottom:44px;max-width:760px;}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:"Barlow Condensed",ui-monospace,monospace;font-size:13px;letter-spacing:.2em;color:var(--muted);text-transform:uppercase;}
.eyebrow::before{content:"";width:28px;height:2px;background:var(--accent);display:block;}
h2.section-title{font-size:clamp(1.7rem,3.2vw,2.6rem);font-weight:900;line-height:1.16;letter-spacing:-.015em;border-left:4px solid var(--accent);padding-left:16px;}
.section-desc{color:var(--muted);font-size:16px;max-width:640px;}

/* 卡片矩阵 */
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.spec-card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-sm);transition:transform .22s var(--ease),box-shadow .22s var(--ease);overflow:hidden;}
.spec-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);}
.spec-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.spec-card:hover::before{transform:scaleX(1);}
.spec-icon{width:46px;height:46px;border-radius:12px;background:rgba(31,138,99,.1);color:var(--moss);display:flex;align-items:center;justify-content:center;font-size:19px;margin-bottom:18px;}
.spec-card h3{font-size:1.15rem;font-weight:700;margin-bottom:10px;}
.spec-card p{color:var(--muted);font-size:15px;line-height:1.75;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;padding-top:18px;border-top:1px solid var(--line);}
.tag{font-size:12px;letter-spacing:.04em;padding:4px 12px;border-radius:999px;border:1px solid var(--line);color:var(--muted);background:var(--bg);transition:all .2s var(--ease);}
.spec-card:hover .tag{border-color:rgba(31,138,99,.4);color:var(--moss);}

/* 表格 */
.table-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);}
.table-scroll{overflow-x:auto;scrollbar-width:thin;}
.table-scroll::-webkit-scrollbar{height:8px;}
.table-scroll::-webkit-scrollbar-thumb{background:var(--line);border-radius:999px;}
.table-scroll::-webkit-scrollbar-track{background:var(--bg);}
table{width:100%;border-collapse:collapse;min-width:760px;font-size:15px;}
thead th{background:var(--ink);color:#fff;text-align:left;font-weight:600;font-size:14px;letter-spacing:.04em;padding:16px 20px;white-space:nowrap;}
tbody td{padding:16px 20px;border-top:1px solid var(--line);color:var(--muted);vertical-align:top;}
tbody td:first-child{font-weight:700;color:var(--ink);white-space:nowrap;}
tbody tr:nth-child(even){background:#FBF9F5;}
tbody tr{transition:background .18s var(--ease);}
tbody tr:hover{background:#F2EFE8;}

/* 标签云 */
.scene-cloud{display:flex;flex-wrap:wrap;gap:12px;padding-top:8px;}
.scene-tag{font-size:14px;padding:10px 20px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--ink);transition:all .2s var(--ease);}
.scene-tag:hover{background:var(--moss);border-color:var(--moss);color:#fff;transform:translateY(-2px);}

/* FAQ */
.faq{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{width:100%;display:flex;align-items:center;gap:18px;min-height:64px;padding:14px 0;text-align:left;}
.faq-num{font-family:"Barlow Condensed",ui-monospace,monospace;font-size:14px;color:var(--muted);width:32px;flex:0 0 auto;}
.faq-q span.q-text{font-size:17px;font-weight:600;flex:1;}
.faq-icon{width:30px;height:30px;flex:0 0 auto;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--ink);font-size:13px;transition:transform .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);}
.faq-item.open .faq-icon{transform:rotate(45deg);color:var(--accent);border-color:var(--accent);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease);}
.faq-a p{padding:0 50px 22px 50px;font-size:15px;line-height:1.8;color:var(--muted);}

/* CTA */
.cta-band{background:#EFEBE2;border:1px solid var(--line);border-radius:var(--radius-card);padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;}
.cta-band h3{font-size:clamp(1.2rem,2vw,1.6rem);font-weight:900;letter-spacing:-.01em;}
.cta-band p{color:var(--muted);font-size:15px;margin-top:8px;max-width:620px;}

/* 页脚 */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand-mark{color:#fff;}
.footer-brand .brand-sub{color:rgba(255,255,255,.55);border-left-color:rgba(255,255,255,.2);}
.footer-brand p{margin-top:18px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.7);max-width:360px;}
.footer-col h4{font-size:14px;letter-spacing:.08em;color:#fff;margin-bottom:18px;font-weight:700;}
.footer-col li{margin-bottom:12px;font-size:14.5px;}
.footer-col a{color:rgba(255,255,255,.7);transition:color .2s var(--ease);}
.footer-col a:hover{color:var(--lime);}
.footer-col .plain{color:rgba(255,255,255,.7);}
.footer-bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.15);padding:22px 0 28px;display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:13px;color:rgba(255,255,255,.55);flex-wrap:wrap;}

/* 动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.visible{opacity:1;transform:none;}

@media (max-width:1024px){
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .container{padding:0 24px;}
  section{padding:72px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .page-banner{min-height:300px;}
}
@media (max-width:768px){
  .topbar-left{display:none;}
  .topbar .container{justify-content:flex-end;}
  section{padding:56px 0;}
  .card-grid{grid-template-columns:1fr;}
  .banner-inner{padding-top:56px;padding-bottom:40px;}
  .page-banner{min-height:260px;}
  .faq-a p{padding:0 8px 20px 50px;}
  .cta-band{padding:28px 24px;}
}
@media (max-width:520px){
  .container{padding:0 20px;}
  .page-banner{min-height:220px;}
  .page-banner h1{font-size:1.85rem;}
  .page-banner p{font-size:15px;}
  .footer-grid{grid-template-columns:1fr;}
  .spec-card{padding:22px;}
  .footer-brand p{max-width:none;}
  .faq-num{width:24px;}
  .faq-a p{padding-left:42px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category3 */
:root{
  --ink:#10231C;
  --ink-soft:#1A3229;
  --accent:#FF4A17;
  --moss:#1F8A63;
  --lime:#CBE86B;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --line:#E2DED5;
  --muted:#6E6A61;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(16,35,28,.04);
  --shadow-hover:0 18px 40px -20px rgba(16,35,28,.35);
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"Barlow Condensed","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{margin:0;}
img{max-width:100%;display:block;}
a{text-decoration:none;}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
.site-body{
  font-family:var(--font-sans);
  background-color:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
div.container{
  width:100%;
  max-width:1200px;
  margin-left:auto;
  margin-right:auto;
  padding-left:32px;
  padding-right:32px;
}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-radius:6px;
}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}

/* 顶部信息条 */
.topbar{background:var(--ink);color:rgba(255,255,255,.78);font-size:12px;letter-spacing:.05em;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;min-height:36px;gap:16px;}
.topbar-note{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-actions{display:flex;align-items:center;gap:14px;}
.topbar-link{color:rgba(255,255,255,.78);transition:color .2s ease;}
.topbar-link:hover{color:var(--lime);}
.topbar-divider{width:1px;height:14px;background:rgba(255,255,255,.25);display:inline-block;}
.topbar-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:999px;
  background:var(--accent);color:#fff;font-weight:700;letter-spacing:.04em;
  transition:background .2s ease,transform .2s ease;
}
.topbar-pill:hover{background:#fff;color:var(--ink);transform:translateY(-1px);}

/* 主导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,239,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease,background .22s ease;
}
.site-header.scrolled{box-shadow:0 12px 30px -24px rgba(16,35,28,.7);background:rgba(246,244,239,.88);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:inline-flex;align-items:baseline;gap:10px;}
.brand-mark{font-size:21px;font-weight:900;letter-spacing:-.01em;color:var(--ink);}
.brand-sub{font-family:var(--font-mono);font-size:11px;letter-spacing:.22em;color:var(--muted);text-transform:uppercase;}
.nav-links{display:flex;align-items:center;gap:26px;}
.nav-link{
  position:relative;display:inline-block;padding:6px 0;
  font-size:15px;font-weight:500;color:#3E4C46;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--accent);transition:width .22s cubic-bezier(.2,.7,.3,1);
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{width:100%;}
.nav-link.active{color:var(--ink);font-weight:700;}
.nav-link.active::after{width:100%;}
.header-cta{display:flex;align-items:center;gap:12px;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  font-weight:700;font-size:15px;line-height:1.2;
  padding:14px 28px;border-radius:var(--radius-btn);
  border:1.5px solid transparent;cursor:pointer;
  transition:background .2s cubic-bezier(.2,.7,.3,1),color .2s ease,transform .2s ease,border-color .2s ease;
}
.btn i{transition:transform .2s cubic-bezier(.2,.7,.3,1);}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--ink);transform:translateY(-1px);}
.btn-primary:hover i{transform:translateX(4px);}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-1px);}
.btn-sm{padding:10px 18px;font-size:14px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--moss);font-weight:600;font-size:14px;
  border-bottom:1px solid rgba(31,138,99,.5);
  padding-bottom:2px;transition:color .2s ease,border-color .2s ease;
}
.link-arrow:hover{color:var(--accent);border-color:var(--accent);}
.link-arrow:hover i{transform:translateX(4px);}
.link-arrow i{transition:transform .2s cubic-bezier(.2,.7,.3,1);}

/* 移动端抽屉 */
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 11px;
  background:var(--surface);border:1px solid var(--line);border-radius:10px;cursor:pointer;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--ink);}
.mobile-drawer{
  position:fixed;inset:0;z-index:120;display:none;flex-direction:column;
  padding:24px 20px 32px;overflow-y:auto;
  background:var(--ink);color:#fff;
}
.mobile-drawer.open{display:flex;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-top .brand-mark{color:#fff;}
.drawer-close{
  width:44px;height:44px;border-radius:10px;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.18);color:#fff;font-size:18px;cursor:pointer;
}
.drawer-nav a{
  display:flex;align-items:center;gap:14px;height:56px;
  border-bottom:1px solid rgba(255,255,255,.12);
  color:rgba(255,255,255,.86);font-size:17px;
}
.drawer-nav a.active{color:#fff;font-weight:700;}
.dnum{font-family:var(--font-mono);font-size:13px;letter-spacing:.08em;color:var(--accent);}
.drawer-cta{margin-top:26px;justify-content:center;}

/* Banner */
.banner{
  position:relative;display:flex;align-items:center;min-height:320px;
  background-image:linear-gradient(90deg,rgba(16,35,28,.9) 0%,rgba(16,35,28,.72) 55%,rgba(16,35,28,.55) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.banner-inner{padding-top:56px;padding-bottom:56px;text-align:left;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:rgba(255,255,255,.68);}
.crumb li{display:inline-flex;align-items:center;gap:10px;}
.crumb li+li::before{content:"/";color:rgba(255,255,255,.4);}
.crumb a{color:rgba(255,255,255,.82);transition:color .2s ease;}
.crumb a:hover{color:var(--lime);}
.crumb [aria-current="page"]{color:rgba(255,255,255,.6);}
.banner-title{
  margin:20px 0 14px;max-width:760px;
  font-size:clamp(2.2rem,4.8vw,3.4rem);font-weight:900;
  line-height:1.1;letter-spacing:-.02em;color:#fff;
}
.banner-sub{max-width:660px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.8);}

/* 通用板块 */
.section{padding:96px 0;}
.section-head{max-width:820px;margin-bottom:46px;}
.section-num{
  display:inline-block;margin-bottom:14px;
  font-family:var(--font-mono);font-size:13px;letter-spacing:.14em;color:var(--muted);
}
.section-title{
  border-left:4px solid var(--accent);padding-left:18px;
  font-size:clamp(1.6rem,2.8vw,2.2rem);font-weight:900;line-height:1.22;letter-spacing:-.01em;color:var(--ink);
}
.section-desc{margin-top:18px;max-width:720px;color:var(--muted);font-size:16px;}

/* 支持范围 */
.support-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.support-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:14px;box-shadow:var(--shadow-card);border:1px solid var(--line);
}
.support-item{
  display:grid;grid-template-columns:52px 1fr;gap:16px;
  padding:22px 0;border-bottom:1px solid var(--line);
}
.support-item:first-child{padding-top:4px;}
.si-num{font-family:var(--font-mono);font-size:18px;font-weight:800;color:var(--accent);letter-spacing:.04em;}
.si-title{font-size:1.15rem;font-weight:700;margin-bottom:6px;}
.si-desc{color:var(--muted);font-size:15px;line-height:1.8;}

/* 时间轴 */
.timeline{position:relative;padding-left:44px;}
.timeline::before{
  content:"";position:absolute;left:5px;top:8px;bottom:22px;width:2px;background:var(--line);
}
.tl-item{position:relative;padding-bottom:36px;}
.tl-item:last-child{padding-bottom:0;}
.tl-node{
  position:absolute;left:-44px;top:9px;width:12px;height:12px;
  background:var(--accent);border-radius:2px;
}
.tl-num{font-family:var(--font-mono);font-size:14px;font-weight:800;letter-spacing:.1em;color:var(--accent);}
.tl-title{margin:6px 0 8px;font-size:1.25rem;font-weight:700;}
.tl-desc{max-width:760px;color:var(--muted);font-size:15px;line-height:1.8;}

/* 数据条 */
.stats-band{background:var(--ink);color:#fff;padding:72px 0;}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);}
.stat{padding:6px 32px;}
.stat:first-child{padding-left:0;}
.stat+.stat{border-left:1px solid rgba(255,255,255,.14);}
.stat-num{
  display:flex;align-items:baseline;gap:8px;
  font-family:var(--font-mono);font-size:clamp(2.2rem,4vw,3.1rem);font-weight:800;
  line-height:1;letter-spacing:-.01em;font-variant-numeric:tabular-nums;
}
.stat-unit{font-size:14px;font-weight:600;color:var(--lime);letter-spacing:.06em;}
.stat-label{margin-top:12px;color:rgba(255,255,255,.7);font-size:14px;line-height:1.7;}

/* FAQ */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  width:100%;min-height:64px;padding:12px 0;
  background:transparent;border:0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--ink);
}
.faq-q:hover{color:var(--moss);}
.faq-icon{
  flex:none;width:28px;height:28px;border-radius:999px;
  border:1.5px solid var(--line);color:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;transition:transform .22s ease,color .22s ease,border-color .22s ease;
}
.faq-item.open .faq-icon{transform:rotate(45deg);color:var(--accent);border-color:var(--accent);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s cubic-bezier(.2,.7,.3,1);}
.faq-a-inner{padding:2px 0 22px;max-width:840px;color:var(--muted);font-size:15px;line-height:1.85;}

/* CTA 条 */
.cta-band{background:#EDE8DE;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:52px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-title{font-size:clamp(1.4rem,2.4vw,1.9rem);font-weight:900;line-height:1.25;}
.cta-desc{margin-top:10px;color:var(--muted);font-size:15px;max-width:620px;}

/* 页脚 */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-mark{color:#fff;}
.footer-brand .brand-sub{color:rgba(255,255,255,.5);}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);max-width:360px;}
.footer-col h4{font-size:14px;letter-spacing:.08em;color:#fff;margin-bottom:16px;font-weight:700;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{color:rgba(255,255,255,.7);font-size:14px;transition:color .2s ease;}
.footer-col a:hover{color:var(--lime);}
.footer-col .plain{color:rgba(255,255,255,.62);font-size:14px;}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* 进场动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s cubic-bezier(.2,.7,.3,1);}
.reveal.is-visible{opacity:1;transform:none;}

/* 响应式 */
@media (max-width:1024px){
  div.container{padding-left:24px;padding-right:24px;}
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .section{padding:72px 0;}
  .support-grid{grid-template-columns:1fr;gap:32px;}
  .stats-grid{grid-template-columns:1fr;}
  .stat{padding:22px 0;}
  .stat:first-child{padding-top:0;}
  .stat+.stat{border-left:0;border-top:1px solid rgba(255,255,255,.14);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .banner{min-height:280px;}
}
@media (max-width:768px){
  .section{padding:60px 0;}
  .stats-band{padding:56px 0;}
  .topbar-note{display:none;}
  .header-cta .btn-sm{display:none;}
  .banner-title{font-size:clamp(1.9rem,7vw,2.4rem);}
  .banner-sub{font-size:15.5px;}
  .faq-q{min-height:56px;font-size:16px;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:520px){
  div.container{padding-left:20px;padding-right:20px;}
  .section{padding:52px 0;}
  .timeline{padding-left:32px;}
  .timeline::before{left:5px;}
  .tl-node{left:-32px;}
  .btn{width:100%;justify-content:center;}
  .header-cta{gap:0;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-inner .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}