/* roulang page: index */
:root{
  --arena:#0E3B36;
  --arena-deep:#0A2A27;
  --lime:#C8F14E;
  --lime-deep:#B2DE33;
  --lime-soft:rgba(200,241,78,.28);
  --orange:#FF6A3D;
  --orange-ink:#C24A22;
  --sand:#F6F4EF;
  --card:#FFFFFF;
  --ink:#14201E;
  --ink-2:#5A6864;
  --line:#E3E0D8;
  --on-dark:#F2F6F3;
  --on-dark-2:#A9BEB8;
  --r-card:10px;
  --r-btn:6px;
  --r-img:8px;
  --sh-1:0 1px 2px rgba(10,42,39,.06);
  --sh-2:0 12px 28px -12px rgba(10,42,39,.18);
  --sh-3:0 18px 40px -16px rgba(10,42,39,.24);
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--sand);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--arena);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--arena-deep);}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;color:var(--arena);line-height:1.28;}
h1{font-size:clamp(34px,4vw,52px);font-weight:800;}
h2{font-size:clamp(26px,2.6vw,32px);}
h3{font-size:clamp(18px,1.5vw,20px);}
h4{font-size:15px;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.sec{padding:var(--sec) 0;}
.sec-tight{padding:72px 0;}
.sec-head{max-width:720px;margin-bottom:40px;}
.sec-head .eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--ink-2);text-transform:uppercase;margin-bottom:12px;}
.sec-head p{color:var(--ink-2);font-size:16.5px;margin-top:14px;}
.sec-head--center{margin-left:auto;margin-right:auto;text-align:center;}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px;}
/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--arena-deep);color:var(--on-dark-2);font-size:13px;border-bottom:1px solid rgba(242,246,243,.12);}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:40px;flex-wrap:wrap;}
.topbar-note{display:flex;align-items:center;gap:8px;}
.topbar-dot{width:6px;height:6px;border-radius:50%;background:var(--lime);flex:0 0 6px;}
.topbar a{color:var(--on-dark-2);}
.topbar a:hover{color:var(--lime);}
/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(246,244,239,.96);backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:box-shadow .2s ease,border-color .2s ease;}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:0 8px 22px -16px rgba(10,42,39,.4);}
.navbar{display:flex;align-items:center;justify-content:space-between;gap:24px;height:70px;}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17.5px;color:var(--arena);letter-spacing:-.01em;white-space:nowrap;}
.brand:hover{color:var(--arena);}
.brand-mark{width:34px;height:34px;flex:0 0 34px;}
.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{position:relative;display:inline-flex;align-items:center;height:70px;padding:0 16px;font-size:15.5px;font-weight:600;color:var(--ink-2);}
.nav-link::after{content:"";position:absolute;left:16px;right:16px;bottom:14px;height:3px;border-radius:2px;background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;}
.nav-link:hover{color:var(--arena);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--arena);font-weight:700;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:14px;}
.nav-cta{padding:10px 18px;font-size:14.5px;border-radius:var(--r-btn);}
.nav-mega{position:relative;}
.mega-trigger{display:inline-flex;align-items:center;gap:6px;height:70px;padding:0 16px;background:none;border:none;font-size:15.5px;font-weight:600;color:var(--ink-2);cursor:pointer;position:relative;}
.mega-trigger::after{content:"";position:absolute;left:16px;right:16px;bottom:14px;height:3px;border-radius:2px;background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;}
.mega-trigger:hover,.mega-trigger:focus-visible{color:var(--arena);background:rgba(14,59,54,.05);}
.mega-trigger:hover::after,.nav-mega.is-open .mega-trigger::after,.nav-mega:focus-within .mega-trigger::after{transform:scaleX(1);}
.mega-caret{width:10px;height:10px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translate(-2px,-2px);transition:transform .2s ease;}
.nav-mega:hover .mega-caret,.nav-mega.is-open .mega-caret{transform:rotate(225deg) translate(-2px,-2px);}
.mega-panel{position:absolute;top:calc(100% + 8px);right:0;width:700px;background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:var(--sh-3);padding:22px;display:grid;grid-template-columns:1fr 1fr 200px;gap:22px;opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .18s ease,transform .18s ease,visibility .18s ease;z-index:90;}
.nav-mega:hover .mega-panel,.nav-mega:focus-within .mega-panel,.nav-mega.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col-title{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--ink-2);margin-bottom:12px;}
.mega-list a{display:block;padding:7px 0;font-size:14.5px;color:var(--ink);}
.mega-list a:hover{color:var(--arena);transform:translateX(2px);}
.mega-list a span{display:block;font-size:12.5px;color:var(--ink-2);font-weight:400;}
.mega-card{background:var(--sand);border:1px solid var(--line);border-radius:8px;padding:16px;display:flex;flex-direction:column;justify-content:space-between;gap:14px;}
.mega-card p{font-size:13.5px;color:var(--ink-2);margin:0;}
.mega-card .btn{padding:10px 16px;font-size:14px;}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:8px;background:#fff;cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--arena);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 24px;border-radius:var(--r-btn);font-weight:600;font-size:15.5px;line-height:1;cursor:pointer;border:1px solid transparent;transition:transform .16s ease,background-color .16s ease,box-shadow .16s ease,border-color .16s ease,color .16s ease;}
.btn-primary{background:var(--lime);color:#0A2A27;}
.btn-primary:hover{background:#B7E13C;color:#0A2A27;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:rgba(242,246,243,.45);color:var(--on-dark);}
.btn-ghost:hover{background:rgba(242,246,243,.1);border-color:var(--lime);color:var(--lime);transform:translateY(-1px);}
.btn-outline{background:transparent;border-color:var(--arena);color:var(--arena);}
.btn-outline:hover{background:rgba(14,59,54,.08);color:var(--arena);transform:translateY(-1px);}
.btn-outline:active{transform:translateY(0);}
.btn-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--arena);border-bottom:2px solid var(--lime);padding-bottom:2px;font-size:15px;}
.btn-link svg{transition:transform .18s ease;}
.btn-link:hover{color:var(--arena-deep);}
.btn-link:hover svg{transform:translateX(4px);}
/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;font-size:12.5px;font-weight:600;padding:4px 10px;border-radius:999px;line-height:1.5;letter-spacing:0;}
.badge-orange{background:rgba(255,106,61,.13);color:var(--orange-ink);}
.badge-lime{background:var(--lime-soft);color:#3F5A0C;}
.badge-plain{background:rgba(14,59,54,.07);color:var(--ink-2);}
/* ---------- 首屏 ---------- */
.hero{position:relative;background:var(--arena);color:var(--on-dark);overflow:hidden;padding:72px 0 76px;min-height:600px;display:flex;align-items:center;}
.hero::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(112deg,rgba(200,241,78,.07) 0 1px,transparent 1px 15px);opacity:1;}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(120% 90% at 85% 10%,rgba(10,42,39,.55) 0%,transparent 60%);}
.hero .wrap{position:relative;z-index:2;}
.hero-tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--lime);border:1px solid rgba(200,241,78,.4);border-radius:999px;padding:5px 13px;margin-bottom:22px;}
.hero h1{color:#fff;margin-bottom:18px;max-width:15em;}
.hero-sub{color:#C4D6D1;font-size:17px;max-width:32em;margin-bottom:30px;}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:40px;}
.hero-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;border-top:1px solid rgba(242,246,243,.16);padding-top:24px;}
.hero-stat-value{font-size:clamp(22px,2.4vw,28px);font-weight:800;color:var(--lime);line-height:1.2;}
.hero-stat-label{font-size:13px;color:var(--on-dark-2);}
.hero-figure{position:relative;margin-left:12px;}
.hero-figure img{width:100%;aspect-ratio:5/4;object-fit:cover;border-radius:14px 14px 14px 60px;box-shadow:var(--sh-3);background:#0A2A27;}
.hero-figure::after{content:"";position:absolute;left:-16px;bottom:-16px;width:104px;height:104px;border-left:2px solid var(--lime);border-bottom:2px solid var(--lime);border-radius:0 0 0 22px;}
/* ---------- 编号轴 ---------- */
.axis{border-top:1px solid var(--line);}
.axis-item{display:grid;grid-template-columns:104px 1fr;gap:26px;padding:26px 0;border-bottom:1px solid var(--line);align-items:start;}
.axis-num{font-size:44px;font-weight:800;line-height:1;color:rgba(14,59,54,.07);-webkit-text-stroke:1.5px rgba(150,192,52,.9);font-variant-numeric:tabular-nums;}
.axis-body h3{margin-bottom:8px;}
.axis-body p{color:var(--ink-2);font-size:15.5px;margin:0;}
.axis-foot{margin-top:32px;}
/* ---------- 解决方案交错 ---------- */
.solve-row{margin-bottom:76px;}
.solve-row:last-child{margin-bottom:0;}
.solve-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh-1);background:#EDEAE3;}
.solve-body{padding:0 8px;}
.solve-body h3{margin:14px 0 12px;}
.solve-body p{color:var(--ink-2);font-size:16px;}
.point-list{margin:0 0 20px;}
.point-list li{position:relative;padding-left:20px;color:var(--ink);font-size:15.5px;margin-bottom:8px;}
.point-list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:2px;background:var(--lime-deep);border-radius:2px;}
/* ---------- 数据带 ---------- */
.stats-band{position:relative;background:var(--arena-deep);color:var(--on-dark);padding:80px 0;overflow:hidden;}
.stats-band::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(200,241,78,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(200,241,78,.06) 1px,transparent 1px);background-size:56px 56px;}
.stats-band .wrap{position:relative;z-index:2;}
.stats-band h2{color:#fff;}
.stats-band .sec-head p{color:var(--on-dark-2);}
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin-top:8px;}
.stats-item{padding:0 26px;border-left:1px solid rgba(242,246,243,.14);}
.stats-item:first-child{border-left:none;padding-left:0;}
.stats-value{font-size:clamp(32px,3.6vw,48px);font-weight:800;color:var(--lime);line-height:1.1;}
.stats-label{font-size:14px;color:var(--on-dark-2);margin-top:8px;}
/* ---------- 内容卡片 ---------- */
.card-grid{display:grid;gap:24px;grid-template-columns:repeat(3,minmax(0,1fr));}
.news-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(200,241,78,.85);}
.news-thumb{display:block;overflow:hidden;background:#EDEAE3;}
.news-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .2s ease;}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-title{font-size:18px;line-height:1.45;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-title a{color:var(--arena);}
.news-title a:hover{color:var(--arena-deep);}
.news-sum{color:var(--ink-2);font-size:14.5px;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--ink-2);padding-top:12px;border-top:1px solid var(--line);}
.news-meta .more{font-weight:600;color:var(--arena);display:inline-flex;align-items:center;gap:4px;}
.empty-state{border:1px dashed #C9C4B8;border-radius:var(--r-card);padding:48px 24px;text-align:center;color:var(--ink-2);background:rgba(255,255,255,.6);}
.empty-state svg{margin:0 auto 16px;display:block;}
.empty-state p{margin:0 0 18px;font-size:15.5px;}
/* ---------- 证言错位 ---------- */
.voices{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:start;}
.voice{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px 22px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.voice:hover{box-shadow:var(--sh-2);border-color:rgba(200,241,78,.85);transform:translateY(-2px);}
.voice:nth-child(2){transform:translateY(24px);}
.voice:nth-child(2):hover{transform:translateY(22px);}
.voice:nth-child(3){transform:translateY(-10px);}
.voice:nth-child(3):hover{transform:translateY(-12px);}
.voice-quote{font-size:34px;line-height:1;color:var(--lime-deep);font-weight:800;margin-bottom:10px;}
.voice p{color:var(--ink);font-size:15.5px;}
.voice-who{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:13.5px;color:var(--ink-2);}
.voice-who strong{display:block;color:var(--arena);font-size:14.5px;}
/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;padding:22px 0;font-weight:700;font-size:18px;color:var(--arena);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{content:"";width:3px;height:20px;border-radius:2px;background:var(--lime);opacity:.45;transition:opacity .2s ease;flex:0 0 3px;}
.faq-item[open] summary::before{opacity:1;}
.faq-item summary::after{content:"+";margin-left:auto;font-size:22px;line-height:1;color:var(--ink-2);transition:transform .2s ease,color .2s ease;}
.faq-item[open] summary::after{transform:rotate(45deg);color:var(--arena);}
.faq-answer{padding:0 0 24px 17px;color:var(--ink-2);font-size:15.5px;line-height:1.85;max-width:62em;}
.faq-answer p{margin:0;}
/* ---------- 末尾 CTA ---------- */
.final-cta{background:var(--arena);color:var(--on-dark);padding:64px 0;position:relative;overflow:hidden;}
.final-cta::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(112deg,rgba(200,241,78,.06) 0 1px,transparent 1px 15px);}
.final-cta .wrap{position:relative;z-index:2;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.4vw,28px);margin-bottom:8px;}
.cta-inner p{color:#C4D6D1;margin:0;font-size:15.5px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;align-items:center;}
/* ---------- 页脚 ---------- */
.site-footer{background:var(--arena);color:var(--on-dark-2);border-top:4px solid var(--lime);padding-top:64px;}
.footer-cols{padding-bottom:48px;}
.footer-brand .brand{color:#fff;margin-bottom:16px;}
.footer-brand .brand:hover{color:#fff;}
.footer-desc{font-size:14.5px;line-height:1.8;max-width:34em;color:var(--on-dark-2);margin:0;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;letter-spacing:.04em;margin-bottom:16px;}
.footer-col a{display:flex;align-items:center;min-height:44px;font-size:14.5px;color:var(--on-dark-2);}
.footer-col a::before{content:"";width:0;height:14px;border-radius:2px;background:var(--lime);margin-right:0;transition:width .18s ease,margin-right .18s ease;}
.footer-col a:hover{color:#fff;}
.footer-col a:hover::before{width:2px;margin-right:8px;}
.footer-contact{font-size:14.5px;line-height:2;color:var(--on-dark-2);}
.footer-contact strong{color:#fff;font-weight:600;}
.footer-bottom{border-top:1px solid rgba(242,246,243,.14);padding:20px 0;font-size:13px;color:rgba(169,190,184,.9);}
.footer-bottom .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;}
/* ---------- 响应式 ---------- */
@media (min-width:1025px){
  .solve-row--rev .solve-media{order:2;}
  .solve-row--rev .solve-body{order:1;}
}
@media (max-width:1024px){
  :root{--sec:72px;}
  .hero{min-height:auto;padding:56px 0 64px;}
  .hero h1{max-width:none;}
  .hero-figure{margin:36px 0 0;}
  .hero-figure::after{display:none;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .voices{grid-template-columns:repeat(2,minmax(0,1fr));}
  .voice:nth-child(2),.voice:nth-child(3),.voice:nth-child(2):hover,.voice:nth-child(3):hover{transform:none;}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 0;}
  .stats-item:nth-child(odd){border-left:none;padding-left:0;}
  .axis-item{grid-template-columns:76px 1fr;gap:18px;}
  .axis-num{font-size:36px;}
  .mega-panel{display:none;}
}
@media (max-width:900px){
  .navbar{height:64px;}
  .nav-toggle{display:flex;}
  .nav-cta{display:none;}
  .main-nav{position:fixed;left:0;right:0;top:104px;background:var(--sand);flex-direction:column;align-items:stretch;gap:0;padding:10px 24px 22px;border-bottom:1px solid var(--line);box-shadow:var(--sh-3);display:none;}
  .site-header.nav-open .main-nav{display:flex;}
  .nav-link{height:52px;padding:0;border-bottom:1px solid var(--line);}
  .nav-link::after{left:0;right:auto;width:3px;height:22px;bottom:15px;transform:scaleY(0);transform-origin:top;}
  .nav-link:hover::after,.nav-link.is-active::after{transform:scaleY(1);}
  .nav-mega{display:none;}
  .site-header.nav-open .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg);}
  .site-header.nav-open .nav-toggle span:nth-child(2){opacity:0;}
  .site-header.nav-open .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
}
@media (max-width:767px){
  :root{--sec:56px;}
  .wrap{padding:0 16px;}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 12px;}
  .card-grid{grid-template-columns:1fr;}
  .voices{grid-template-columns:1fr;}
  .solve-row{margin-bottom:52px;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:20px;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .hero-cta .btn{width:100%;}
  .footer-bottom .wrap{flex-direction:column;}
}
@media (max-width:520px){
  h1{font-size:30px;}
  .axis-item{grid-template-columns:1fr;gap:8px;}
  .axis-num{font-size:30px;}
  .stats-item{padding:0 16px;}
}

/* roulang page: category1 */
:root{
  --deep:#0E3B36;
  --deep-2:#0A2A27;
  --lime:#C8F14E;
  --lime-soft:#EDF9CC;
  --orange:#FF6A3D;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --ink:#14201E;
  --ink-2:#5A6864;
  --ink-3:#8B9793;
  --line:#E3E0D8;
  --white-ink:#F2F6F3;
  --r-card:10px;
  --r-btn:6px;
  --r-img:8px;
  --sh-1:0 1px 2px rgba(10,42,39,.06);
  --sh-2:0 12px 28px -12px rgba(10,42,39,.18);
  --sh-3:0 18px 40px -16px rgba(10,42,39,.24);
  --pad-section:96px;
}
*,*::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:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16.5px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--deep);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--deep-2)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-.02em;color:var(--deep);font-weight:800}
h1{font-size:clamp(34px,4.4vw,50px)}
h2{font-size:clamp(26px,2.6vw,32px)}
h3{font-size:19px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}
::selection{background:var(--lime);color:var(--deep-2)}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:var(--pad-section) 0}
.section-head{max-width:760px;margin-bottom:38px}
.section-head .eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--orange);margin-bottom:12px}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--deep-2);color:#A9BDB8;font-size:13px;height:38px;display:flex;align-items:center}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar strong{color:var(--lime);font-weight:700}
.topbar-right{display:flex;gap:18px}
.topbar-right a{color:#A9BDB8}
.topbar-right a:hover{color:#fff}

/* ---------- 头部与导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(246,244,239,.96);backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:border-color .2s ease,box-shadow .2s ease}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:0 8px 24px -18px rgba(10,42,39,.5)}
.navbar{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--deep);letter-spacing:-.02em;flex:none}
.brand-mark{width:38px;height:38px;flex:none}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{position:relative;display:inline-block;padding:12px 14px;font-size:15px;font-weight:600;color:#2C4340;border-radius:6px}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:3px;border-radius:2px;background:var(--lime);transform:scaleX(0);transform-origin:left center;transition:transform .2s ease}
.nav-link:hover{color:var(--deep);background:rgba(14,59,54,.05)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--deep);font-weight:800}
.nav-right{display:flex;align-items:center;gap:12px}
.nav-mega{position:relative}
.mega-trigger{display:inline-flex;align-items:center;gap:8px;padding:11px 14px;font-size:15px;font-weight:600;color:#2C4340;border-radius:6px;transition:background .18s ease,color .18s ease}
.mega-trigger:hover,.mega-trigger[aria-expanded="true"]{background:rgba(14,59,54,.07);color:var(--deep)}
.mega-caret{width:0;height:0;border-left:5px solid transparent;border-right:5px solid transparent;border-top:6px solid currentColor;transition:transform .2s ease}
.mega-trigger[aria-expanded="true"] .mega-caret{transform:rotate(180deg)}
.mega-panel{position:absolute;right:0;top:calc(100% + 10px);width:720px;max-width:calc(100vw - 48px);background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:var(--sh-3);padding:22px;display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:22px;opacity:0;visibility:hidden;transform:translateY(-8px);transition:opacity .18s ease,transform .18s ease,visibility .18s}
.nav-mega:hover .mega-panel,.nav-mega:focus-within .mega-panel,.nav-mega.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col-title{font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--orange);margin-bottom:10px}
.mega-list a{display:block;padding:9px 8px;border-radius:6px;font-size:15px;font-weight:600;color:#22403B;transition:background .16s ease,transform .16s ease}
.mega-list a span{display:block;font-size:13px;font-weight:400;color:var(--ink-2);margin-top:2px}
.mega-list a:hover{background:#F4F7EE;transform:translateX(2px)}
.mega-card{background:#F4F7EE;border:1px solid #E1EBD0;border-radius:8px;padding:18px;display:flex;flex-direction:column;gap:14px;justify-content:space-between}
.mega-card p{font-size:14px;color:var(--ink-2);line-height:1.7}
.nav-cta{white-space:nowrap}
.nav-toggle{display:none;width:44px;height:44px;border-radius:8px;border:1px solid var(--line);background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--deep);border-radius:2px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1.2;border:1px solid transparent;transition:transform .16s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease}
.btn-primary{background:var(--lime);color:#173A34;box-shadow:var(--sh-1)}
.btn-primary:hover{background:#BCE63C;color:#123029;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-outline{background:transparent;border-color:var(--deep);color:var(--deep)}
.btn-outline:hover{background:rgba(14,59,54,.08);color:var(--deep);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(0)}
.btn-ghost-light{background:transparent;border-color:rgba(242,246,243,.45);color:var(--white-ink)}
.btn-ghost-light:hover{background:rgba(242,246,243,.12);color:#fff;transform:translateY(-1px)}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--deep);border-bottom:2px solid var(--lime);padding-bottom:2px}
.link-arrow::after{content:"→";transition:transform .18s ease}
.link-arrow:hover{color:var(--deep-2)}
.link-arrow:hover::after{transform:translateX(4px)}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:#9FB3AE;margin-bottom:22px}
.breadcrumb a{color:#C5D5D0}
.breadcrumb a:hover{color:var(--lime)}
.breadcrumb .crumb-current{color:var(--white-ink);font-weight:600}

/* ---------- 分类首屏 ---------- */
.cat-hero{position:relative;background:var(--deep);color:var(--white-ink);overflow:hidden;padding:52px 0 64px}
.cat-hero::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(112deg,rgba(200,241,78,.075) 0 1px,transparent 1px 15px);pointer-events:none}
.cat-hero::after{content:"";position:absolute;right:-140px;top:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(200,241,78,.16),transparent 68%);pointer-events:none}
.cat-hero .wrap{position:relative;z-index:2}
.cat-hero-grid{align-items:center}
.cat-hero-copy h1{color:#fff;max-width:620px}
.cat-hero-copy .hero-badge{display:inline-block;padding:5px 12px;border-radius:999px;background:rgba(200,241,78,.16);color:var(--lime);font-size:12.5px;font-weight:700;letter-spacing:.08em;margin-bottom:16px}
.cat-hero-copy .lead{margin-top:16px;font-size:16.5px;color:#C6D6D1;max-width:560px}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.cat-hero-meta{display:flex;flex-wrap:wrap;gap:22px;margin-top:26px;padding-top:20px;border-top:1px solid rgba(242,246,243,.16)}
.cat-hero-meta div{font-size:13.5px;color:#B4C7C2}
.cat-hero-meta strong{display:block;font-size:22px;color:var(--lime);font-weight:800;font-variant-numeric:tabular-nums}
.hero-figure{position:relative}
.hero-figure img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-img);clip-path:polygon(0 0,100% 0,100% 100%,14% 100%);border:1px solid rgba(200,241,78,.35);box-shadow:var(--sh-3)}
.hero-figure::after{content:"";position:absolute;left:-10px;bottom:-10px;width:64px;height:4px;background:var(--lime);border-radius:2px}

/* ---------- 阶梯时间轴 ---------- */
.tl-list{position:relative;padding-left:0}
.tl-list::before{content:"";position:absolute;left:19px;top:14px;bottom:26px;width:2px;background:linear-gradient(180deg,var(--lime),#DDE6D2 60%,transparent);border-radius:2px}
.tl-item{position:relative;padding-left:64px;margin-bottom:20px}
.tl-item:last-child{margin-bottom:0}
.tl-node{position:absolute;left:11px;top:26px;width:18px;height:18px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 4px var(--bg),0 0 0 5px #D9E7BB}
.tl-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:20px 24px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.tl-card:hover{transform:translateY(-2px);border-color:#D6E9A6;box-shadow:var(--sh-2)}
.tl-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:12px}
.tl-num{font-size:13px;font-weight:800;letter-spacing:.1em;color:var(--orange);font-variant-numeric:tabular-nums}
.tl-phase{font-size:12.5px;font-weight:700;color:#3C6A62;background:#EEF5EA;border-radius:999px;padding:3px 10px}
.tl-card p{margin-top:10px;color:var(--ink-2);font-size:15.5px;line-height:1.75}
.tl-card .link-arrow{margin-top:14px}
.tl-cta{margin-top:34px;padding-left:64px}

/* ---------- 深色数据带 ---------- */
.stats-band{position:relative;background:var(--deep-2);color:var(--white-ink);padding:76px 0;overflow:hidden}
.stats-band::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:46px 46px;pointer-events:none}
.stats-band .wrap{position:relative;z-index:2}
.stats-head{max-width:620px;margin-bottom:44px}
.stats-head h2{color:#fff}
.stats-head p{margin-top:12px;color:#AFC4BF;font-size:15.5px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.stat{padding:6px 26px;border-left:1px solid rgba(242,246,243,.16)}
.stat:first-child{border-left:0;padding-left:0}
.stat strong{display:block;font-size:clamp(30px,3.4vw,44px);line-height:1.1;color:var(--lime);font-weight:800;font-variant-numeric:tabular-nums}
.stat span{display:block;margin-top:10px;font-size:14px;color:#A9BDB8;line-height:1.6}

/* ---------- 栏目图文卡 ---------- */
.card-grid{display:grid;gap:24px;grid-template-columns:repeat(3,1fr)}
.media-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.media-card:hover{transform:translateY(-2px);border-color:#D6E9A6;box-shadow:var(--sh-2)}
.media-card .thumb{overflow:hidden;aspect-ratio:16/10;background:#EDEFE8}
.media-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease}
.media-card:hover .thumb img{transform:scale(1.03)}
.media-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.badge{display:inline-block;align-self:flex-start;padding:4px 10px;border-radius:999px;font-size:12.5px;font-weight:700}
.badge-lime{background:var(--lime-soft);color:#33502A}
.badge-orange{background:#FFEBE4;color:#B23E1C}
.media-body p{color:var(--ink-2);font-size:15px;line-height:1.75}
.media-body .link-arrow{margin-top:auto;padding-top:12px}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);max-width:900px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{position:relative;display:flex;align-items:flex-start;gap:14px;padding:20px 44px 20px 18px;cursor:pointer;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:2px;background:var(--lime);opacity:.45;transition:opacity .2s ease}
.faq-item summary::after{content:"+";position:absolute;right:12px;top:16px;width:26px;height:26px;line-height:24px;text-align:center;font-size:18px;font-weight:700;color:var(--deep);border:1px solid var(--line);border-radius:6px;transition:transform .22s ease,background .2s ease}
.faq-item summary h3{font-size:17px;font-weight:700;color:var(--ink)}
.faq-item[open] summary::before{opacity:1}
.faq-item[open] summary::after{transform:rotate(45deg);background:var(--lime-soft)}
.faq-item summary:hover h3{color:var(--deep)}
.faq-answer{padding:0 44px 22px 18px;color:var(--ink-2);font-size:15.5px;line-height:1.85;max-width:820px}

/* ---------- 末尾 CTA ---------- */
.cta-band{background:var(--deep);color:var(--white-ink);position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(100deg,rgba(200,241,78,.07) 0 1px,transparent 1px 16px);pointer-events:none}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;padding:60px 0}
.cta-inner h2{color:#fff;max-width:560px}
.cta-inner .cta-note{margin-top:12px;font-size:14.5px;color:#B4C7C2}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--deep);color:#B8CAC5;position:relative;padding-top:64px}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--lime)}
.footer-cols{padding-bottom:44px}
.footer-col{margin-bottom:26px}
.footer-col h4{font-size:14px;font-weight:800;letter-spacing:.04em;color:#fff;margin-bottom:14px}
.footer-brand .brand{color:#fff;margin-bottom:14px}
.footer-desc{font-size:14.5px;line-height:1.8;color:#A9BDB8;max-width:340px}
.footer-col a{display:block;font-size:14.5px;color:#C2D3CE;padding:7px 0;transition:color .18s ease,padding-left .18s ease,border-color .18s ease;border-left:2px solid transparent}
.footer-col a:hover{color:#fff;padding-left:8px;border-left-color:var(--lime)}
.footer-contact div{font-size:14.5px;color:#C2D3CE;padding:5px 0;line-height:1.7}
.footer-contact strong{color:#EAF2EF;font-weight:600}
.footer-bottom{border-top:1px solid rgba(242,246,243,.14);padding:18px 0;font-size:13.5px;color:#93A8A3}
.footer-bottom .wrap{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{display:none;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--sh-2)}
.mobile-drawer.is-open{display:block}
.mobile-drawer .wrap{padding-top:14px;padding-bottom:18px}
.drawer-link{display:block;padding:14px 8px;font-size:16px;font-weight:600;color:#22403B;border-bottom:1px solid var(--line)}
.drawer-link.is-active{color:var(--deep);border-left:3px solid var(--lime);padding-left:14px;font-weight:800}
.mobile-drawer .btn{margin-top:16px}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  :root{--pad-section:72px}
  .stats-grid{grid-template-columns:repeat(2,1fr);row-gap:28px}
  .stat{padding:6px 22px}
  .stat:nth-child(odd){border-left:0;padding-left:0}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .hero-figure img{clip-path:none}
}
@media (max-width:900px){
  .main-nav,.nav-mega,.nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .topbar-right{display:none}
}
@media (max-width:640px){
  :root{--pad-section:56px}
  body{font-size:16px}
  .wrap{padding:0 16px}
  .navbar{height:64px}
  .brand{font-size:16px;gap:8px}
  .brand-mark{width:34px;height:34px}
  .cat-hero{padding:36px 0 46px}
  .cat-hero-copy .lead{font-size:15.5px}
  .cat-hero-actions .btn{flex:1 1 100%}
  .cat-hero-meta{gap:16px}
  .cat-hero-meta div{flex:1 1 44%}
  .tl-item{padding-left:44px;margin-bottom:16px}
  .tl-list::before{left:13px}
  .tl-node{left:5px;top:24px;width:16px;height:16px}
  .tl-card{padding:16px 18px}
  .tl-cta{padding-left:44px}
  .tl-cta .btn{width:100%}
  .stats-band{padding:56px 0}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:0}
  .stat{padding:14px 14px}
  .stat strong{font-size:26px}
  .card-grid{grid-template-columns:1fr}
  .cta-inner{padding:48px 0;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .faq-item summary{padding:18px 40px 18px 14px}
  .faq-answer{padding:0 40px 20px 14px}
  .footer-bottom .wrap{flex-direction:column}
}

/* roulang page: article */
:root{
  --green-900:#0A2A27;
  --green-800:#0E3B36;
  --lime:#C8F14E;
  --lime-deep:#B2DC35;
  --orange:#FF6A3D;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --ink:#14201E;
  --ink-2:#5A6864;
  --line:#E3E0D8;
  --reverse:#F2F6F3;
  --r-card:10px;
  --r-btn:6px;
  --r-img:8px;
  --sh-1:0 1px 2px rgba(10,42,39,.06);
  --sh-2:0 12px 28px -12px rgba(10,42,39,.18);
  --sh-3:0 18px 40px -16px rgba(10,42,39,.24);
  --sec:96px;
}
*,*::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:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:16.5px;
  line-height:1.75;
  font-weight:400;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--green-800);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease}
a:hover{color:var(--green-900)}
button{font:inherit;color:inherit}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
svg{display:block}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

/* ===== 顶部按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--lime);color:var(--green-900);box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--lime-deep);color:var(--green-900);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-outline{background:transparent;border-color:var(--green-800);color:var(--green-800)}
.btn-outline:hover{background:rgba(14,59,54,.08);color:var(--green-900)}
.btn-block{width:100%}
.btn[disabled]{opacity:.5;pointer-events:none}

/* ===== 头部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--bg);
  border-bottom:1px solid transparent;
  transition:background-color .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.site-header.is-stuck{background:#fff;border-bottom-color:var(--line);box-shadow:0 1px 2px rgba(10,42,39,.06)}
.navbar{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:800;letter-spacing:-.02em;color:var(--green-800)}
.brand-mark{width:34px;height:34px;flex:none}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:10px}
.nav-link{position:relative;display:inline-flex;align-items:center;height:72px;padding:0 15px;font-size:15px;font-weight:600;color:#2E3D39}
.nav-link::after{
  content:"";position:absolute;left:15px;right:15px;bottom:18px;height:3px;border-radius:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.nav-link:hover{color:var(--green-900)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--green-900);font-weight:700}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-cta{padding:10px 18px;font-size:14.5px}

.nav-mega{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border:0;border-radius:var(--r-btn);
  background:transparent;font-size:15px;font-weight:600;color:#2E3D39;cursor:pointer;
  transition:background-color .18s ease,color .18s ease;
}
.mega-trigger:hover{background:rgba(14,59,54,.07);color:var(--green-900)}
.mega-trigger[aria-expanded="true"]{background:rgba(14,59,54,.07);color:var(--green-900)}
.mega-caret{width:7px;height:7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translate(-2px,-2px);transition:transform .2s ease}
.mega-trigger[aria-expanded="true"] .mega-caret{transform:rotate(225deg) translate(-1px,-1px)}
.mega-panel{
  position:absolute;top:calc(100% + 10px);right:0;width:720px;
  display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:22px;
  padding:22px;background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:var(--sh-3);
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
}
.nav-mega:hover .mega-panel,.nav-mega:focus-within .mega-panel,.nav-mega.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col-title{font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--ink-2);text-transform:uppercase;margin-bottom:10px}
.mega-list a{display:flex;flex-direction:column;gap:2px;padding:9px 10px;border-radius:6px;font-size:14.5px;font-weight:600;color:#22322E;transition:background-color .16s ease,transform .16s ease}
.mega-list a span{font-size:12.5px;font-weight:400;color:var(--ink-2);line-height:1.5}
.mega-list a:hover{background:var(--reverse);color:var(--green-900);transform:translateX(2px)}
.mega-card{background:var(--reverse);border-radius:8px;padding:18px;display:flex;flex-direction:column;gap:14px;justify-content:center}
.mega-card p{font-size:14px;color:#33433F;line-height:1.7}
.mega-card .btn{align-self:flex-start;padding:10px 18px;font-size:14px}

.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;border-radius:8px;position:relative;cursor:pointer;flex:none}
.nav-toggle span{position:absolute;left:11px;right:11px;height:2px;border-radius:2px;background:var(--green-800);transition:transform .2s ease,opacity .2s ease}
.nav-toggle span:nth-child(1){top:14px}
.nav-toggle span:nth-child(2){top:20px}
.nav-toggle span:nth-child(3){top:26px}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg)}
body.nav-open .nav-toggle span:nth-child(2){opacity:0}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ===== 面包屑 ===== */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:24px 0 18px;font-size:13.5px;color:var(--ink-2)}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--green-900)}
.breadcrumb .sep{color:#B9C2BE}
.breadcrumb .current{color:#22322E;font-weight:600}

/* ===== 文章标题区 ===== */
.article-hero{padding-bottom:34px;border-bottom:1px solid var(--line)}
.badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;font-size:12.5px;font-weight:600;line-height:1.5}
.badge-orange{background:rgba(255,106,61,.12);color:#C6451C}
.badge-lime{background:rgba(200,241,78,.32);color:#3E5410}
.article-hero h1{
  margin:14px 0 18px;
  font-size:clamp(28px,3.6vw,42px);
  line-height:1.28;font-weight:800;letter-spacing:-.02em;color:var(--green-800);
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13.5px;color:var(--ink-2)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C3CBC7}

/* ===== 正文布局 ===== */
.article-layout{padding:52px 0 var(--sec)}
.article-layout .grid-margin-x{margin-left:-12px;margin-right:-12px}
.article-layout .grid-margin-x>.cell{padding-left:12px;padding-right:12px}
.article-main-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:34px 38px 40px;box-shadow:var(--sh-1)}

.article-body{max-width:800px;font-size:17px;line-height:1.9;color:var(--ink);overflow-wrap:break-word;word-break:break-word}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1em}
.article-body h2{
  position:relative;margin:44px 0 16px;padding-left:14px;
  font-size:26px;line-height:1.36;font-weight:800;letter-spacing:-.02em;color:var(--green-800);
}
.article-body h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--lime)}
.article-body h3{margin:30px 0 12px;font-size:19px;font-weight:700;line-height:1.5;color:#1B2A27}
.article-body h4{margin:24px 0 10px;font-size:17px;font-weight:700}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding:0}
.article-body ul{list-style:none}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:8px}
.article-body ul li::before{content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--lime)}
.article-body ol{list-style:decimal;padding-left:22px}
.article-body ol li{margin-bottom:8px;padding-left:4px}
.article-body ol li::marker{color:var(--green-800);font-weight:700}
.article-body blockquote{
  margin:22px 0;padding:16px 22px;border-left:4px solid #9FB3AD;background:#F1F3EF;border-radius:0 8px 8px 0;color:#3B4A46;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:22px auto;box-shadow:var(--sh-1)}
.article-body figure{margin:22px 0}
.article-body figcaption{margin-top:10px;text-align:center;font-size:13.5px;color:var(--ink-2)}
.article-body a{color:var(--green-800);border-bottom:2px solid var(--lime);transition:border-color .2s ease,color .2s ease}
.article-body a:hover{color:var(--green-900);border-bottom-color:var(--green-900)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0}
.article-body strong{font-weight:700;color:#16241F}
.article-body table{display:block;width:100%;max-width:100%;overflow-x:auto;border-collapse:collapse;margin:22px 0;font-size:15px;background:#fff}
.article-body thead{background:#F1F3EF}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;vertical-align:top;white-space:nowrap}
.article-body th{font-weight:700;color:#22322E}
.article-body pre{
  margin:22px 0;padding:18px 20px;background:var(--green-900);color:#D6F0E4;border-radius:8px;
  font-size:14px;line-height:1.7;overflow-x:auto;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
.article-body pre code{background:none;color:inherit;padding:0;border:0;font-size:inherit}
.article-body code{background:#EFF3EE;color:var(--green-800);padding:2px 6px;border-radius:4px;font-size:14.5px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}

/* ===== 空态 ===== */
.empty-state{
  border:1px dashed #C9CFC8;border-radius:var(--r-card);background:#FCFBF8;
  padding:52px 26px;text-align:center;
}
.empty-state svg{margin:0 auto 16px}
.empty-state p{margin-bottom:18px;font-size:15.5px;color:var(--ink-2)}

/* ===== 文末标签 ===== */
.article-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}
.tag-cap{font-size:13px;font-weight:600;color:var(--ink-2)}
.tag{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;
  background:#F1F3EF;border:1px solid var(--line);font-size:13px;font-weight:600;color:#2E3D39;
  transition:background-color .18s ease,border-color .18s ease,color .18s ease;
}
.tag:hover{background:rgba(200,241,78,.35);border-color:#CFE79B;color:var(--green-900)}

/* ===== 侧栏 ===== */
.side-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px 22px;box-shadow:var(--sh-1)}
.side-card-title{font-size:14px;font-weight:700;color:var(--green-800);letter-spacing:.02em;margin-bottom:12px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.toc-list{list-style:none;counter-reset:toc}
.toc-list li{counter-increment:toc;margin-bottom:4px}
.toc-list a{
  display:flex;gap:10px;padding:6px 8px;border-radius:6px;font-size:14px;color:#3A4844;line-height:1.6;
  transition:background-color .16s ease,color .16s ease,transform .16s ease;
}
.toc-list a::before{content:counter(toc,decimal-leading-zero);color:#9BAAA4;font-size:12.5px;font-weight:700;flex:none;padding-top:2px}
.toc-list a:hover{background:var(--reverse);color:var(--green-900);transform:translateX(2px)}
.side-link{display:flex;flex-direction:column;gap:2px;padding:10px 10px;border-radius:6px;font-size:14.5px;font-weight:600;color:#22322E;transition:background-color .16s ease,transform .16s ease}
.side-link span{font-size:12.5px;font-weight:400;color:var(--ink-2)}
.side-link:hover{background:var(--reverse);color:var(--green-900);transform:translateX(2px)}
.side-cta{background:var(--green-800);border-color:var(--green-800);color:var(--reverse)}
.side-cta p{font-size:14px;line-height:1.75;color:#D8E5E0;margin-bottom:16px}

/* ===== 相关推荐 ===== */
.section{padding:var(--sec) 0}
.rec-section{padding-top:0}
.section-head{max-width:720px;margin-bottom:38px}
.section-head h2{font-size:30px;font-weight:800;letter-spacing:-.02em;color:var(--green-800);line-height:1.3}
.section-head p{margin-top:12px;font-size:15.5px;color:var(--ink-2)}
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.rec-card{
  display:grid;grid-template-columns:104px minmax(0,1fr);gap:14px;align-items:center;
  padding:14px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rec-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CFE79B}
.rec-thumb{aspect-ratio:5/4;overflow:hidden;border-radius:8px;background:#EDEAE2}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease}
.rec-card:hover .rec-thumb img{transform:scale(1.03)}
.rec-card h3{font-size:15.5px;font-weight:700;line-height:1.5;color:#1B2A27;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rec-card time{font-size:12.5px;color:var(--orange);font-weight:600}
.rec-back{display:flex;flex-wrap:wrap;gap:26px;margin-top:32px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--green-800);border-bottom:1px solid transparent;padding-bottom:2px}
.link-arrow .arrow{transition:transform .2s ease}
.link-arrow:hover{color:var(--green-900);border-bottom-color:var(--green-900)}
.link-arrow:hover .arrow{transform:translateX(4px)}

/* ===== 末尾 CTA ===== */
.cta-band{background:var(--green-900);position:relative;overflow:hidden}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(115deg,rgba(200,241,78,.07) 0 1px,transparent 1px 14px);
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;gap:28px;justify-content:space-between;padding:56px 0}
.cta-inner h2{font-size:28px;font-weight:800;letter-spacing:-.02em;color:#fff;line-height:1.3}
.cta-inner p{margin-top:10px;font-size:15px;color:#C7D8D2;max-width:560px}
.cta-inner .btn-primary{padding:13px 26px}

/* ===== 页脚 ===== */
.site-footer{background:var(--green-800);color:#D3E1DC;border-top:4px solid var(--lime);margin-top:0}
.footer-cols{padding:64px 0 46px}
.footer-col{padding-top:0}
.footer-brand .brand{color:#fff;margin-bottom:16px}
.footer-desc{font-size:14px;line-height:1.8;color:#B9CCC6;max-width:340px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;letter-spacing:.02em;margin-bottom:16px}
.footer-col a{display:block;padding:7px 0;font-size:14px;color:#B9CCC6;transition:color .18s ease,transform .18s ease}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-contact{font-size:14px;line-height:2;color:#B9CCC6}
.footer-contact strong{color:#E4EEEA;font-weight:600}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12)}
.footer-bottom .wrap{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;padding-top:18px;padding-bottom:18px;font-size:13px;color:#93A9A3}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  :root{--sec:72px}
  .navbar{height:64px;gap:12px}
  .nav-mega{display:none}
  .nav-toggle{display:inline-block}
  .nav-cta{display:none}
  .main-nav{
    position:fixed;left:0;right:0;top:64px;margin:0;padding:8px 24px 20px;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--sh-2);
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
  }
  body.nav-open .main-nav{opacity:1;visibility:visible;transform:translateY(0)}
  .nav-link{height:auto;padding:15px 4px;border-bottom:1px solid var(--line)}
  .nav-link::after{display:none}
  .nav-link.is-active{color:var(--green-900)}
  .nav-link.is-active::before{content:"";width:3px;height:16px;border-radius:2px;background:var(--lime);margin-right:10px}
  .section{padding:var(--sec) 0}
  .article-layout{padding:40px 0 var(--sec)}
  .article-main-card{padding:26px 24px 32px}
  .article-body{font-size:16.5px}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .side-sticky{position:static}
}
@media (max-width:767px){
  .rec-grid{grid-template-columns:1fr}
  .cta-inner{padding:44px 0}
  .cta-inner h2{font-size:23px}
  .footer-cols{padding:48px 0 34px}
  .footer-col h4{margin-top:8px}
}
@media (max-width:640px){
  .wrap{padding:0 16px}
  :root{--sec:56px}
  body{font-size:16px}
  .article-hero h1{font-size:26px}
  .article-main-card{padding:22px 18px 26px;border-radius:8px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:21px;margin-top:34px}
  .article-body h3{font-size:17.5px}
  .section-head h2{font-size:23px}
  .rec-card{grid-template-columns:88px minmax(0,1fr)}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-inner .btn-primary{width:100%}
  .footer-bottom .wrap{flex-direction:column;gap:6px}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --green:#0E3B36;
  --deep:#0A2A27;
  --lime:#C8F14E;
  --lime-deep:#B7E138;
  --orange:#FF6A3D;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --ink:#14201E;
  --muted:#5A6864;
  --line:#E3E0D8;
  --on-dark:#F2F6F3;
  --r-card:10px;
  --r-btn:6px;
  --r-img:8px;
  --sh-1:0 1px 2px rgba(10,42,39,.06);
  --sh-2:0 12px 28px -12px rgba(10,42,39,.18);
  --sh-3:0 18px 40px -16px rgba(10,42,39,.24);
  --wrap:1240px;
  --sec-y:96px;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16.5px;
  font-weight:400;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;background:#E9E6DE}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0;letter-spacing:-.02em;font-weight:800;line-height:1.3}
h1{font-size:clamp(32px,4.4vw,50px);font-weight:800}
h2{font-size:clamp(25px,3vw,32px);color:var(--green)}
h3{font-size:19px;font-weight:700;letter-spacing:-.01em}
ul{margin:0;padding:0;list-style:none}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--lime);
  outline-offset:2px;
  border-radius:4px;
}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ============ 容器 ============ */
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.grid-margin-x{margin-left:-12px;margin-right:-12px}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px}
.section{padding:var(--sec-y) 0}
.section-tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:40px}
.section-head p{color:var(--muted);font-size:16px;margin:12px 0 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.1em;
  color:var(--green);margin-bottom:14px;
}
.eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--orange);display:inline-block}
.eyebrow-dark{color:var(--lime)}
.eyebrow-dark i{background:var(--lime)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--lime);color:#0C2A22}
.btn-primary:hover{background:var(--lime-deep);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-outline{background:transparent;border-color:var(--green);color:var(--green)}
.btn-outline:hover{background:rgba(14,59,54,.08)}
.btn-ghost{background:transparent;border-color:rgba(200,241,78,.5);color:var(--on-dark)}
.btn-ghost:hover{background:rgba(200,241,78,.14);border-color:var(--lime)}
.btn[disabled]{opacity:.5;pointer-events:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--green)}
.link-arrow svg{transition:transform .2s ease}
.link-arrow:hover svg{transform:translateX(4px)}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--deep);color:#B7C7C3;font-size:13px}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:38px}
.topbar a{color:#D6E2DE}
.topbar a:hover{color:var(--lime)}
.topbar-right{display:flex;gap:18px;align-items:center}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(246,244,239,.95);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--sh-1)}
.navbar{display:flex;align-items:center;gap:20px;min-height:70px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--green);letter-spacing:-.02em}
.brand-mark{width:34px;height:34px;flex:none}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{
  position:relative;padding:10px 14px;border-radius:6px;
  font-size:15px;font-weight:600;color:#3E4E4A;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--green);background:rgba(14,59,54,.06)}
.nav-link.is-active{color:var(--green)}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;
  border-radius:2px;background:var(--lime);
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-cta{padding:11px 18px}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;
  border-radius:8px;cursor:pointer;padding:0;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--green);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.site-header.nav-open .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.site-header.nav-open .nav-toggle span:nth-child(2){opacity:0}
.site-header.nav-open .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* Mega 面板 */
.nav-mega{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:7px;padding:10px 14px;
  border:0;background:transparent;border-radius:6px;
  font-size:15px;font-weight:600;color:#3E4E4A;cursor:pointer;
  transition:background .2s ease,color .2s ease;
}
.nav-mega:hover .mega-trigger,.mega-trigger[aria-expanded="true"]{background:rgba(14,59,54,.06);color:var(--green)}
.mega-caret{width:7px;height:7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translate(-2px,-2px);transition:transform .2s ease}
.nav-mega:hover .mega-caret,.mega-trigger[aria-expanded="true"] .mega-caret{transform:rotate(-135deg) translate(-2px,-2px)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 8px);width:700px;z-index:95;
  background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--sh-3);
  padding:24px;display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
}
.nav-mega:hover .mega-panel,.nav-mega:focus-within .mega-panel,.nav-mega.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col-title{font-size:13px;font-weight:700;color:var(--green);letter-spacing:.06em;margin-bottom:12px}
.mega-list a{display:block;padding:9px 10px;border-radius:8px;font-size:14.5px;font-weight:600;color:var(--ink);transition:background .18s ease,color .18s ease,transform .18s ease}
.mega-list a span{display:block;font-size:12.5px;font-weight:400;color:var(--muted);margin-top:2px}
.mega-list a:hover{background:#F4F7F2;color:var(--green);transform:translateX(2px)}
.mega-card{background:#F4F7F2;border:1px solid var(--line);border-radius:10px;padding:20px;display:flex;flex-direction:column;justify-content:space-between}
.mega-card p{font-size:14px;color:var(--muted);line-height:1.7;margin:0 0 16px}

/* ============ 分类 Hero ============ */
.cat-hero{
  position:relative;background:var(--deep);color:var(--on-dark);
  padding:56px 0 60px;overflow:hidden;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(112deg,rgba(200,241,78,.10) 0%,rgba(200,241,78,0) 52%),
    repeating-linear-gradient(7deg,rgba(242,246,243,.055) 0 1px,transparent 1px 11px);
  pointer-events:none;
}
.cat-hero .wrap{position:relative;z-index:2}
.crumbs{font-size:13px;color:#93A8A3;display:flex;align-items:center;gap:8px;margin-bottom:22px}
.crumbs a{color:#B9CAC6}
.crumbs a:hover{color:var(--lime)}
.crumbs .current{color:#E7EFEC;font-weight:600}
.cat-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.cat-hero h1{color:#fff;margin:0 0 16px}
.hero-sub{font-size:16.5px;color:#C3D2CE;max-width:520px;margin:0 0 28px;line-height:1.8}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.cat-hero-media{position:relative}
.cat-hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:10px;
  box-shadow:0 0 0 1px rgba(200,241,78,.35),var(--sh-3);
  clip-path:polygon(0 0,100% 0,100% 88%,88% 100%,0 100%);
}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
.hero-tags span{
  font-size:12.5px;font-weight:600;padding:5px 12px;border-radius:99px;
  background:rgba(200,241,78,.14);color:#DDF7A6;border:1px solid rgba(200,241,78,.28);
}

/* ============ 数据带 ============ */
.metrics{background:var(--deep);color:var(--on-dark);position:relative;overflow:hidden;padding:58px 0}
.metrics::before{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(90deg,rgba(242,246,243,.05) 0 1px,transparent 1px 64px);
  pointer-events:none;
}
.metrics .wrap{position:relative;z-index:2}
.metric{padding:6px 22px;border-left:1px solid rgba(242,246,243,.16)}
.metric:first-child{border-left:0}
.metric-num{font-size:clamp(30px,4vw,42px);font-weight:800;color:var(--lime);line-height:1.1;letter-spacing:-.02em}
.metric-label{font-size:14px;color:#B9CAC6;margin-top:10px;line-height:1.6}

/* ============ 大图卡片网格（本页主版式） ============ */
.datacard{
  position:relative;height:100%;display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.datacard::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--orange);z-index:4;
}
.datacard:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#DCF3A8}
.datacard .thumb{position:relative;overflow:hidden;aspect-ratio:16/10;background:#E9E6DE}
.datacard .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.datacard:hover .thumb img{transform:scale(1.03)}
.datacard .body{padding:24px 24px 22px;display:flex;flex-direction:column;flex:1}
.badge{
  display:inline-flex;align-items:center;font-size:12.5px;font-weight:600;
  padding:4px 11px;border-radius:99px;letter-spacing:.02em;
  background:rgba(255,106,61,.12);color:#B8400F;
}
.badge-lime{background:rgba(200,241,78,.26);color:#41601A}
.datacard h3{margin:14px 0 10px;color:var(--green)}
.datacard p{color:var(--muted);font-size:15px;line-height:1.8;margin:0 0 18px}
.datacard .card-foot{margin-top:auto;padding-top:6px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px}
.datacard .card-foot span{font-size:13px;color:#8A9691}

/* ============ 使用方式 ============ */
.howto{background:#FFFFFF;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:8px}
.step{position:relative;padding:8px 26px 8px 0}
.step::after{content:"";position:absolute;left:0;top:44px;right:26px;height:1px;background:var(--line)}
.step:last-child::after{right:0;background:transparent}
.step-num{
  position:relative;z-index:2;display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:50%;background:var(--deep);color:var(--lime);
  font-size:15px;font-weight:800;margin-bottom:20px;
}
.step h3{margin:0 0 8px;font-size:17.5px;color:var(--green)}
.step p{font-size:14.5px;color:var(--muted);line-height:1.8;margin:0}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;
  display:flex;align-items:center;gap:16px;
  padding:22px 44px 22px 20px;
  font-size:17px;font-weight:700;color:var(--green);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:20px;border-radius:2px;background:var(--lime);opacity:.5;
  transition:opacity .2s ease;
}
.faq-item[open] summary::before{opacity:1}
.faq-item summary::after{
  content:"";position:absolute;right:6px;top:50%;width:14px;height:14px;
  transform:translateY(-50%);
  background-image:linear-gradient(var(--green),var(--green)),linear-gradient(var(--green),var(--green));
  background-size:14px 2px,2px 14px;
  background-position:center,center;
  background-repeat:no-repeat;
  transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq-body{padding:0 60px 24px 20px;color:var(--muted);font-size:15.5px;line-height:1.85}
.faq-body p{margin:0 0 .8em}
.faq-body p:last-child{margin:0}

/* ============ 末尾 CTA ============ */
.cta-band{background:var(--green);color:var(--on-dark);position:relative;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(7deg,rgba(200,241,78,.07) 0 1px,transparent 1px 12px);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;padding:64px 0;flex-wrap:wrap}
.cta-inner h2{color:#fff;margin:0 0 10px}
.cta-inner p{color:#BFD1CC;margin:0;font-size:15.5px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-band .btn-outline{border-color:rgba(242,246,243,.45);color:var(--on-dark)}
.cta-band .btn-outline:hover{background:rgba(242,246,243,.12)}

/* ============ 页脚 ============ */
.site-footer{background:var(--deep);color:#C9D6D2;position:relative}
.site-footer::before{content:"";display:block;height:4px;background:var(--lime)}
.footer-cols{padding:64px 0 40px}
.footer-col h4{font-size:14px;font-weight:700;color:#FFFFFF;margin:0 0 16px;letter-spacing:.03em}
.footer-col a{
  display:block;padding:7px 0;font-size:14px;color:#B9C8C4;position:relative;
  transition:color .2s ease,padding-left .2s ease;
}
.footer-col a:hover{color:#FFFFFF;padding-left:10px}
.footer-col a:hover::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:2px;height:14px;background:var(--lime);border-radius:2px;
}
.footer-brand .brand{color:#FFFFFF;margin-bottom:4px}
.footer-desc{font-size:14px;color:#9FB0AC;line-height:1.85;margin:16px 0 0;max-width:340px}
.footer-contact div{font-size:14px;color:#B9C8C4;padding:6px 0;word-break:break-all}
.footer-contact strong{color:#E7EFEC;font-weight:600}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1)}
.footer-bottom .wrap{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;padding-top:18px;padding-bottom:18px;font-size:13px;color:#8FA29E}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  :root{--sec-y:72px}
  .wrap{padding:0 20px}
  .nav-toggle{display:flex}
  .navbar{flex-wrap:wrap;gap:12px}
  .main-nav,.nav-right{display:none;width:100%}
  .site-header.nav-open .main-nav,.site-header.nav-open .nav-right{display:flex}
  .main-nav{
    order:3;flex-direction:column;align-items:stretch;gap:0;margin-left:0;
    border-top:1px solid var(--line);padding-top:8px;margin-top:4px;
  }
  .nav-link{padding:13px 8px}
  .nav-link.is-active::after{left:8px;right:auto;width:22px;bottom:6px}
  .nav-right{order:4;flex-direction:column;align-items:stretch;gap:10px;padding-bottom:14px;margin-left:0}
  .nav-cta{width:100%}
  .nav-mega{width:100%}
  .mega-trigger{width:100%;justify-content:space-between;padding:13px 8px}
  .mega-panel{
    position:static;width:100%;opacity:1;visibility:visible;transform:none;
    box-shadow:none;grid-template-columns:1fr;padding:16px;margin-top:6px;display:none;
  }
  .nav-mega.is-open .mega-panel{display:grid}
  .cat-hero-grid{grid-template-columns:1fr;gap:32px}
  .cat-hero-media img{clip-path:none;aspect-ratio:16/9}
  .metric{border-left:0;border-top:1px solid rgba(242,246,243,.16);padding:20px 0 4px;margin-top:16px}
  .metric:first-child{border-top:0;margin-top:0}
  .steps{grid-template-columns:repeat(2,1fr);gap:36px 24px}
  .step{padding-right:0}
  .step::after{display:none}
  .footer-cols{padding:48px 0 32px}
}
@media (max-width:639px){
  :root{--sec-y:56px}
  .wrap{padding:0 16px}
  body{font-size:16px}
  .topbar .wrap{flex-direction:column;align-items:flex-start;gap:4px;padding-top:8px;padding-bottom:8px}
  .topbar-right{gap:14px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .cat-hero{padding:40px 0 44px}
  .steps{grid-template-columns:1fr}
  .faq-item summary{font-size:16px;padding:18px 38px 18px 16px}
  .faq-body{padding:0 20px 20px 16px}
  .cta-inner{padding:48px 0}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .datacard .body{padding:20px}
  .footer-bottom .wrap{flex-direction:column;align-items:flex-start}
}
@media (min-width:1441px){
  :root{--wrap:1280px}
}