/* roulang page: index */
:root{
  --green:#0C3B34;
  --green-dark:#0A322C;
  --green-mid:#146853;
  --orange:#E4572E;
  --orange-dark:#C94822;
  --orange-soft:#FDEBE3;
  --sand:#F7F5F0;
  --white:#FFFFFF;
  --zebra:#FBFAF7;
  --ink:#14181A;
  --ink-2:#5A625E;
  --ink-3:#8A918D;
  --line:#E4E0D7;
  --r-card:10px;
  --r-btn:8px;
  --r-img:14px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(10,50,44,.06);
  --sh-md:0 8px 24px rgba(10,50,44,.08);
  --t:.18s ease;
  --num:'DIN Alternate','Barlow','Roboto Mono',ui-monospace,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.8;color:var(--ink);background:var(--sand);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,p{margin:0}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(228,87,46,.25);border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1200px){.container{max-width:1200px}}
.num{font-family:var(--num);font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--green);
  box-shadow:0 1px 0 rgba(255,255,255,.10),0 6px 22px rgba(10,50,44,.14);
}
.header-inner{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:8px;background:var(--orange);
  font-family:var(--num);font-weight:700;font-size:17px;letter-spacing:.5px;color:#fff;
  box-shadow:0 4px 12px rgba(228,87,46,.30);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;font-weight:700;color:#fff;letter-spacing:.5px;white-space:nowrap}
.brand-text em{font-style:normal;font-size:11px;color:rgba(255,255,255,.58);letter-spacing:2.2px;margin-top:2px}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.main-nav .nav-link{
  position:relative;display:block;padding:10px 13px;font-size:15px;font-weight:500;
  color:rgba(255,255,255,.86);border-radius:6px;
  transition:color var(--t),background var(--t);white-space:nowrap;
}
.main-nav .nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:3px;border-radius:2px;
  background:var(--orange);transform:scaleX(0);transform-origin:left center;
  transition:transform var(--t),opacity var(--t);
}
.main-nav .nav-link:hover{color:#fff;background:rgba(255,255,255,.07)}
.main-nav .nav-link:hover::after{transform:scaleX(1);opacity:.6}
.main-nav .nav-link.is-active{color:#fff;background:rgba(255,255,255,.11)}
.main-nav .nav-link.is-active::after{transform:scaleX(1);opacity:1}
.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0}
.mega-wrap{position:relative}
.mega-toggle{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.20);
  font-size:14px;font-weight:500;color:#fff;transition:background var(--t),border-color var(--t);
}
.mega-toggle:hover{background:rgba(255,255,255,.17);border-color:rgba(255,255,255,.36)}
.mega-toggle i{font-size:10px;transition:transform var(--t)}
.mega-wrap.is-open .mega-toggle i{transform:rotate(180deg)}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:780px;
  background:#fff;color:var(--ink);border-top:3px solid var(--orange);
  border-radius:0 0 12px 12px;box-shadow:var(--sh-md);padding:26px 26px 24px;
  display:grid;grid-template-columns:1fr 1.15fr 1fr;gap:26px;
  opacity:0;visibility:hidden;transform:translateY(8px);pointer-events:none;
  transition:opacity var(--t),transform var(--t),visibility var(--t);
}
.mega-wrap.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto}
.mega-col-title{font-size:12px;font-weight:700;letter-spacing:2px;color:var(--ink-3);margin-bottom:14px}
.mega-cat-list li + li{margin-top:4px}
.mega-cat-list a{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:6px;font-size:14px;color:var(--ink-2);transition:background var(--t),color var(--t)}
.mega-cat-list a:hover{background:var(--sand);color:var(--green)}
.mega-cat-list .sq{width:12px;height:12px;border-radius:2px;background:var(--orange-soft);border:1px solid rgba(228,87,46,.4);flex:0 0 12px}
.mega-cat-list .cnt{margin-left:auto;font-family:var(--num);font-size:12px;color:var(--ink-3)}
.mega-news li + li{margin-top:12px;padding-top:12px;border-top:1px dashed var(--line)}
.mega-news a{display:block;font-size:14px;line-height:1.6;color:var(--ink);transition:color var(--t)}
.mega-news a:hover{color:var(--orange)}
.mega-news time{display:block;margin-top:4px;font-family:var(--num);font-size:12px;color:var(--ink-3)}
.mega-card{display:block;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--sand);transition:box-shadow var(--t),border-color var(--t)}
.mega-card:hover{box-shadow:var(--sh-md);border-color:rgba(228,87,46,.35)}
.mega-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.mega-card .mc-body{padding:12px 14px 14px}
.mega-card h4{font-size:14px;font-weight:600;line-height:1.55;margin:0 0 6px}
.mega-card span{font-size:12px;color:var(--orange);font-weight:600}
.menu-toggle{
  display:none;align-items:center;justify-content:center;width:42px;height:42px;
  border-radius:var(--r-btn);background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.20);
  color:#fff;font-size:17px;
}
.menu-toggle:hover{background:rgba(255,255,255,.2)}
@media (max-width:1060px){
  .main-nav{display:none}
  .mega-wrap{display:none}
  .menu-toggle{display:inline-flex}
  .header-inner{height:60px;gap:14px}
}

/* ---------- 移动抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:1100;visibility:hidden;pointer-events:none}
.drawer.is-open{visibility:visible;pointer-events:auto}
.drawer-mask{position:absolute;inset:0;background:rgba(10,50,44,.55);opacity:0;transition:opacity var(--t)}
.drawer.is-open .drawer-mask{opacity:1}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(86vw,360px);
  background:var(--green);color:#fff;padding:18px 20px 32px;overflow-y:auto;
  transform:translateX(100%);transition:transform .22s ease;
}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.14);margin-bottom:14px}
.drawer-head strong{font-size:16px;letter-spacing:.5px}
.drawer-close{width:36px;height:36px;border-radius:8px;background:rgba(255,255,255,.10);color:#fff;display:grid;place-items:center}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;padding:14px 4px;font-size:15px;color:rgba(255,255,255,.88);border-bottom:1px solid rgba(255,255,255,.10)}
.drawer-nav a.is-active{color:#fff;box-shadow:inset 3px 0 0 var(--orange);padding-left:14px}
.drawer-nav a i{font-size:12px;color:rgba(255,255,255,.45)}
.drawer-cta{margin-top:22px}

/* ---------- 通用板块 ---------- */
.section{padding:92px 0}
.section-tight{padding:64px 0}
.section-head{max-width:780px;margin-bottom:44px}
.kicker{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:700;letter-spacing:2px;color:var(--green-mid)}
.kicker::before{content:"";width:26px;height:2px;background:var(--orange)}
.section-title{font-size:30px;line-height:1.35;font-weight:700;margin:14px 0 12px;color:var(--ink)}
.section-desc{font-size:16px;line-height:1.85;color:var(--ink-2);max-width:760px}
.grid-bg{position:relative}
.grid-bg::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(#E4E0D7 1px,transparent 1px),linear-gradient(90deg,#E4E0D7 1px,transparent 1px);
  background-size:24px 24px;opacity:.55;
}
.grid-bg > .container{position:relative;z-index:1}

/* ---------- 按钮 ---------- */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);background:var(--orange);color:#fff;
  font-size:15px;font-weight:600;border:0;transition:background var(--t),transform var(--t),box-shadow var(--t);
}
.btn-main:hover{background:var(--orange-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(228,87,46,.28)}
.btn-main:active{transform:translateY(0);box-shadow:none}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--r-btn);background:transparent;color:var(--green);
  border:1.5px solid var(--green-mid);font-size:15px;font-weight:600;
  transition:background var(--t),color var(--t),border-color var(--t);
}
.btn-line:hover{background:rgba(12,59,52,.07);color:var(--green);border-color:var(--green)}
.btn-text{
  display:inline-flex;align-items:center;gap:8px;padding:12px 4px;font-size:15px;font-weight:600;
  color:#fff;border-bottom:1.5px solid rgba(255,255,255,.45);transition:color var(--t),border-color var(--t);
}
.btn-text:hover{color:#FFC9B4;border-color:var(--orange)}
.btn-text.on-light{color:var(--green-mid);border-color:rgba(20,104,83,.4)}
.btn-text.on-light:hover{color:var(--orange);border-color:var(--orange)}
.btn-block{width:100%}

/* ---------- Hero ---------- */
.hero{position:relative;background:linear-gradient(160deg,#0C3B34 0%,#0A322C 100%);color:#fff;padding:60px 0 0;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(228,224,215,.9) 1px,transparent 1px),linear-gradient(90deg,rgba(228,224,215,.9) 1px,transparent 1px);
  background-size:24px 24px;opacity:.06;
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;min-height:430px}
.hero-tag{
  display:inline-flex;align-items:center;gap:10px;padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(228,87,46,.16);border:1px solid rgba(228,87,46,.42);
  font-size:13px;font-weight:600;letter-spacing:1px;color:#FFB79C;margin-bottom:20px;
}
.hero-tag i{font-size:7px;color:var(--orange)}
.hero h1{font-size:42px;line-height:1.25;font-weight:700;letter-spacing:.5px;margin:0 0 18px;color:#fff}
.hero-sub{font-size:17px;line-height:1.85;color:rgba(255,255,255,.76);max-width:520px;margin:0 0 30px}
.hero-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.hero-media{position:relative;border-radius:var(--r-img);overflow:hidden;border:1px solid rgba(255,255,255,.16);box-shadow:0 22px 56px rgba(0,0,0,.34)}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-media .hm-badge{
  position:absolute;left:16px;bottom:16px;display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:var(--r-pill);background:rgba(10,50,44,.86);
  font-size:12px;letter-spacing:1px;color:#fff;backdrop-filter:blur(2px);
}
.hero-media .hm-badge i{color:#6BE0B6;font-size:7px}
.hero-stats{
  position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:rgba(255,255,255,.16);border-radius:12px 12px 0 0;overflow:hidden;margin-top:46px;
}
.hero-stat{background:var(--green);padding:20px 22px}
.hero-stat b{display:block;font-family:var(--num);font-variant-numeric:tabular-nums;font-size:30px;font-weight:700;line-height:1.1;color:#fff}
.hero-stat b span{font-size:14px;font-weight:600;color:var(--orange);margin-left:5px}
.hero-stat p{margin-top:6px;font-size:13px;line-height:1.6;color:rgba(255,255,255,.62)}

/* ---------- 指标看板 ---------- */
.metrics{background:var(--sand);padding:88px 0}
.metrics .section-head{margin-bottom:40px}
.metric-card{
  height:100%;background:#fff;border:1px solid var(--line);border-left:3px solid var(--orange);
  border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-sm);
  transition:box-shadow var(--t),transform var(--t);
}
.metric-card:hover{box-shadow:var(--sh-md);transform:translateY(-2px)}
.metric-card .m-label{font-size:14px;color:var(--ink-2);line-height:1.7}
.metric-card .m-value{
  font-family:var(--num);font-variant-numeric:tabular-nums;font-size:52px;line-height:1;
  font-weight:700;color:var(--green);margin:14px 0 10px;
}
.metric-card .m-value em{font-style:normal;font-size:18px;color:var(--orange);margin-left:4px}
.metric-card:nth-child(2) .m-value{color:var(--orange)}
.metric-card .m-note{font-size:14px;line-height:1.75;color:var(--ink-3);margin:0}

/* ---------- 服务矩阵 ---------- */
.matrix{background:#fff;padding:92px 0}
.matrix-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:stretch}
.matrix-feature{
  display:flex;flex-direction:column;background:var(--zebra);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm);
  transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.matrix-feature:hover{box-shadow:var(--sh-md);transform:translateY(-2px);border-color:rgba(228,87,46,.35)}
.matrix-feature img{width:100%;aspect-ratio:16/10;object-fit:cover}
.matrix-feature .mf-body{padding:26px;display:flex;flex-direction:column;gap:12px;flex:1}
.matrix-feature h3{font-size:19px;line-height:1.5;font-weight:700;margin:0}
.matrix-feature p{font-size:15px;line-height:1.8;color:var(--ink-2);margin:0}
.matrix-feature .mf-more{margin-top:auto;padding-top:8px;font-size:14px;font-weight:600;color:var(--orange);display:inline-flex;align-items:center;gap:8px}
.matrix-feature:hover .mf-more i{transform:translateX(4px)}
.mf-more i{transition:transform var(--t)}
.matrix-mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.matrix-mini{
  display:flex;flex-direction:column;gap:10px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-sm);
  transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.matrix-mini:hover{box-shadow:var(--sh-md);transform:translateY(-2px);border-color:rgba(228,87,46,.35)}
.matrix-mini .i-box{
  width:40px;height:40px;border-radius:8px;background:rgba(20,104,83,.09);color:var(--green-mid);
  display:grid;place-items:center;font-size:17px;
}
.matrix-mini:hover .i-box{background:var(--orange-soft);color:var(--orange-dark)}
.matrix-mini h3{font-size:16px;font-weight:700;line-height:1.5;margin:0}
.matrix-mini p{font-size:14px;line-height:1.75;color:var(--ink-2);margin:0}
.matrix-mini .mm-arrow{margin-top:auto;font-size:13px;font-weight:600;color:var(--green-mid);display:inline-flex;align-items:center;gap:6px}

/* ---------- 结果对比 ---------- */
.compare{background:var(--sand);padding:92px 0}
.compare-grid{display:grid;grid-template-columns:1fr 68px 1fr;align-items:stretch;margin-top:8px}
.compare-col{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-sm);
}
.compare-col.is-after{border-color:rgba(228,87,46,.4);box-shadow:0 8px 24px rgba(228,87,46,.10)}
.compare-col h3{font-size:17px;font-weight:700;margin:0 0 18px;display:flex;align-items:center;gap:10px}
.compare-col h3 .dot{width:9px;height:9px;border-radius:2px;background:var(--ink-3)}
.compare-col.is-after h3 .dot{background:var(--orange)}
.compare-col ul li{
  position:relative;padding-left:22px;font-size:15px;line-height:1.75;color:var(--ink-2);margin-bottom:12px;
}
.compare-col ul li::before{content:"";position:absolute;left:0;top:.62em;width:10px;height:2px;background:var(--line)}
.compare-col.is-after ul li::before{background:var(--orange)}
.compare-result{
  margin-top:22px;padding-top:18px;border-top:1px dashed var(--line);
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
}
.compare-result span{font-size:14px;color:var(--ink-2)}
.compare-result b{font-family:var(--num);font-variant-numeric:tabular-nums;font-size:28px;font-weight:700;color:var(--ink-3);line-height:1.1}
.compare-col.is-after .compare-result b{color:var(--orange)}
.compare-seam{position:relative;display:flex;align-items:center;justify-content:center}
.compare-seam::before{content:"";position:absolute;top:12px;bottom:12px;left:50%;border-left:1px dashed #D6D1C4}
.compare-seam i{
  position:relative;z-index:1;width:36px;height:36px;border-radius:50%;background:#fff;
  border:1px solid var(--line);color:var(--orange);display:grid;place-items:center;font-size:13px;
}
.compare-note{margin-top:22px;font-size:13px;color:var(--ink-3);line-height:1.8}

/* ---------- 最新资讯 ---------- */
.news{background:#fff;padding:92px 0}
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px}
.news-grid .col-xl-3,.news-grid .col-lg-4{margin-bottom:0}
.news-card{
  display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm);
  transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.news-card:hover{box-shadow:var(--sh-md);transform:translateY(-2px);border-color:rgba(228,87,46,.35)}
.news-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.badge-soft{
  display:inline-flex;align-items:center;align-self:flex-start;
  padding:3px 12px;border-radius:var(--r-pill);background:var(--orange-soft);color:var(--orange-dark);
  font-size:12px;font-weight:600;letter-spacing:.5px;line-height:1.7;
}
.badge-soft.is-green{background:rgba(20,104,83,.10);color:var(--green-mid)}
.news-card h3{
  font-size:17px;font-weight:700;line-height:1.55;margin:0;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color var(--t);
}
.news-card:hover h3{color:var(--orange)}
.news-card p{
  font-size:14px;line-height:1.75;color:var(--ink-2);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card time{
  margin-top:auto;padding-top:10px;font-family:var(--num);font-variant-numeric:tabular-nums;
  font-size:13px;color:var(--ink-3);border-top:1px solid var(--line);display:block;
}
.news-empty{
  text-align:center;padding:56px 24px;border:1px dashed var(--line);border-radius:var(--r-card);background:var(--zebra);
}
.news-empty p{font-size:15px;color:var(--ink-2);margin-bottom:18px}

/* ---------- 交付保障 ---------- */
.assure{background:var(--green);color:#fff;padding:92px 0;position:relative;overflow:hidden}
.assure::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(228,224,215,.9) 1px,transparent 1px),linear-gradient(90deg,rgba(228,224,215,.9) 1px,transparent 1px);
  background-size:24px 24px;opacity:.05;
}
.assure .container{position:relative;z-index:1}
.assure .kicker{color:#7FD8BC}
.assure .kicker::before{background:var(--orange)}
.assure .section-title{color:#fff}
.assure .section-desc{color:rgba(255,255,255,.72)}
.assure-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.assure-card{
  background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-card);padding:28px;transition:background var(--t),border-color var(--t),transform var(--t);
}
.assure-card:hover{background:rgba(255,255,255,.10);border-color:rgba(228,87,46,.55);transform:translateY(-2px)}
.assure-card .no{font-family:var(--num);font-size:13px;letter-spacing:2px;color:var(--orange);font-weight:700}
.assure-card h3{font-size:18px;font-weight:700;margin:14px 0 10px;color:#fff;line-height:1.5}
.assure-card p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.70);margin:0}

/* ---------- FAQ ---------- */
.faq{background:var(--sand);padding:92px 0}
.faq-list{max-width:840px;margin:0 auto}
.faq-item{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:12px;overflow:hidden;transition:border-color var(--t),box-shadow var(--t);
}
.faq-item[open]{border-color:#CFC9BC;box-shadow:var(--sh-sm)}
.faq-item[open]::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--orange);z-index:2}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:16px 24px;min-height:56px;font-size:17px;font-weight:600;line-height:1.6;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  position:relative;flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  border:1.75px solid var(--green-mid);transition:background var(--t),border-color var(--t),transform var(--t);
}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--green-mid);border-radius:1px;transition:background var(--t),opacity var(--t)}
.faq-icon::before{left:6px;right:6px;top:50%;height:1.75px;transform:translateY(-50%)}
.faq-icon::after{top:6px;bottom:6px;left:50%;width:1.75px;transform:translateX(-50%)}
.faq-item[open] summary .faq-icon{background:var(--orange);border-color:var(--orange);transform:rotate(90deg)}
.faq-item[open] summary .faq-icon::before,.faq-item[open] summary .faq-icon::after{background:#fff}
.faq-item[open] summary .faq-icon::after{opacity:0}
.faq-body{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--ink-2)}
.faq-body p{margin:0}
.faq-body p + p{margin-top:10px}

/* ---------- 转化表单 ---------- */
.inquiry{background:var(--green-dark);padding:92px 0;position:relative;overflow:hidden}
.inquiry::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(228,224,215,.9) 1px,transparent 1px),linear-gradient(90deg,rgba(228,224,215,.9) 1px,transparent 1px);
  background-size:24px 24px;opacity:.05;
}
.inquiry .container{position:relative;z-index:1}
.inquiry-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:56px;align-items:start}
.inquiry-info{color:#fff}
.inquiry-info .kicker{color:#7FD8BC}
.inquiry-info .kicker::before{background:var(--orange)}
.inquiry-info h2{font-size:30px;line-height:1.35;font-weight:700;margin:14px 0 16px;color:#fff}
.inquiry-info .lead{font-size:16px;line-height:1.9;color:rgba(255,255,255,.72);margin-bottom:28px}
.info-list li{display:flex;gap:14px;padding:14px 0;border-top:1px solid rgba(255,255,255,.12);font-size:15px;color:rgba(255,255,255,.82)}
.info-list li:last-child{border-bottom:1px solid rgba(255,255,255,.12)}
.info-list i{color:var(--orange);font-size:15px;margin-top:5px;width:18px;text-align:center}
.info-list b{display:block;color:#fff;font-weight:600;margin-bottom:2px}
.inquiry-form{background:#fff;border-radius:var(--r-img);padding:32px;box-shadow:0 20px 48px rgba(0,0,0,.24)}
.form-row{margin-bottom:18px}
.form-row label{display:block;font-size:14px;color:var(--ink-2);margin-bottom:8px;font-weight:500}
.form-row input,.form-row textarea{
  width:100%;height:46px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;font-size:15px;color:var(--ink);transition:border-color var(--t),box-shadow var(--t);
}
.form-row textarea{height:auto;min-height:120px;padding:12px 14px;line-height:1.7;resize:vertical}
.form-row input::placeholder,.form-row textarea::placeholder{color:#B4B8B4}
.form-row input:focus,.form-row textarea:focus{outline:none;border-color:var(--orange);box-shadow:0 0 0 3px rgba(228,87,46,.18)}
.form-tip{margin:14px 0 0;font-size:14px;line-height:1.7;color:var(--ink-3);min-height:24px}
.form-tip.is-ok{color:var(--green-mid)}
.form-tip.is-error{color:var(--orange-dark)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--green);color:rgba(255,255,255,.78);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand strong{font-size:17px;color:#fff;letter-spacing:.5px}
.footer-brand span.fb-sub{display:block;font-size:11px;letter-spacing:2.2px;color:rgba(255,255,255,.55);margin-top:2px}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:320px}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:1px}
.footer-links li + li{margin-top:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);transition:color var(--t);border-bottom:1px solid transparent;padding-bottom:2px}
.footer-links a:hover{color:#fff;border-bottom-color:var(--orange)}
.footer-contact li{display:flex;gap:10px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);margin-bottom:12px}
.footer-contact i{color:var(--orange);margin-top:5px;width:16px;text-align:center;font-size:13px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{margin:0;font-size:13px;color:rgba(255,255,255,.58);line-height:1.8}
.footer-bottom a{color:rgba(255,255,255,.66);border-bottom:1px solid transparent;transition:color var(--t),border-color var(--t)}
.footer-bottom a:hover{color:#fff;border-bottom-color:var(--orange)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .mega-panel{width:680px}
  .hero h1{font-size:36px}
  .metric-card .m-value{font-size:44px}
}
@media (max-width:991px){
  .section,.metrics,.matrix,.compare,.news,.assure,.faq,.inquiry{padding:64px 0}
  .hero{padding:44px 0 0}
  .hero-inner{grid-template-columns:1fr;gap:32px;min-height:0}
  .hero h1{font-size:32px}
  .hero-sub{max-width:none}
  .hero-media img{aspect-ratio:4/3}
  .hero-stats{grid-template-columns:1fr 1fr}
  .matrix-grid{grid-template-columns:1fr}
  .assure-grid{grid-template-columns:1fr}
  .inquiry-grid{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .compare-grid{grid-template-columns:1fr;gap:20px}
  .compare-seam{height:44px}
  .compare-seam::before{top:50%;bottom:auto;left:12px;right:12px;border-left:0;border-top:1px dashed #D6D1C4}
  .compare-seam i{transform:rotate(90deg)}
  .section-title,.inquiry-info h2{font-size:24px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section,.metrics,.matrix,.compare,.news,.assure,.faq,.inquiry{padding:52px 0}
  .hero h1{font-size:28px;line-height:1.32}
  .hero-stats{grid-template-columns:1fr}
  .hero-stat{padding:18px 20px}
  .metric-card{padding:20px}
  .metric-card .m-value{font-size:36px}
  .matrix-mini-grid{grid-template-columns:1fr}
  .matrix-feature .mf-body{padding:20px}
  .inquiry-form{padding:22px}
  .faq-item summary{padding:14px 18px;font-size:16px}
  .faq-body{padding:0 18px 18px}
  .assure-grid{gap:16px}
  .news-head{margin-bottom:28px}
  .btn-main,.btn-line{width:100%}
  .hero-actions{gap:12px}
  .hero-actions .btn-text{padding-left:0}
}
@media (max-width:575px){
  body{font-size:15px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .brand-text em{display:none}
}

/* roulang page: article */
:root{
  --green:#0C3B34;
  --green-dark:#0A322C;
  --green-mid:#146853;
  --orange:#E4572E;
  --orange-dark:#C94822;
  --orange-soft:#FDEBE3;
  --bg:#F7F5F0;
  --card:#FFFFFF;
  --zebra:#FBFAF7;
  --text:#14181A;
  --text-2:#5A625E;
  --text-3:#8A918D;
  --line:#E4E0D7;
  --r-card:10px;
  --r-btn:8px;
  --r-img:14px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(10,50,44,.06);
  --sh-md:0 8px 24px rgba(10,50,44,.08);
  --t:.18s ease;
  --num:'DIN Alternate','Barlow','Roboto Mono',ui-monospace,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--green-mid);text-decoration:none;transition:var(--t)}
a:hover{color:var(--orange)}
button,input,textarea,select{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(228,87,46,.25);border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-family:var(--num);font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--green);
  border-bottom:1px solid rgba(255,255,255,.08);
  box-shadow:0 1px 2px rgba(10,50,44,.16);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.brand{display:flex;align-items:center;gap:12px;color:#fff;flex:0 0 auto}
.brand:hover{color:#fff}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:8px;
  background:var(--orange);color:#fff;
  font-family:var(--num);font-weight:700;font-size:17px;letter-spacing:.5px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:17px;font-weight:700;letter-spacing:.2px}
.brand-text em{font-style:normal;font-size:12px;color:rgba(255,255,255,.62);letter-spacing:1px}
.main-nav{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;color:rgba(255,255,255,.86);font-size:15px;font-weight:500;
  padding:26px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:18px;height:3px;
  background:var(--orange);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:var(--t);opacity:.6;
}
.nav-link:hover{color:#fff}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:#fff;background:linear-gradient(180deg,rgba(255,255,255,.10),rgba(255,255,255,0));}
.nav-link.is-active::after{transform:scaleX(1);opacity:1}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.mega-wrap{position:relative}
.mega-toggle{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.10);color:#fff;border:1px solid rgba(255,255,255,.22);
  padding:9px 16px;border-radius:var(--r-btn);font-size:14px;font-weight:600;cursor:pointer;
  transition:var(--t);
}
.mega-toggle:hover{background:rgba(255,255,255,.18)}
.mega-toggle i{font-size:11px;transition:transform var(--t)}
.mega-wrap.is-open .mega-toggle i,
.mega-wrap:hover .mega-toggle i{transform:rotate(180deg)}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:800px;
  background:#fff;border-radius:0 0 12px 12px;border-top:3px solid var(--orange);
  box-shadow:var(--sh-md);padding:28px;
  display:grid;grid-template-columns:1.05fr 1.25fr 1fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity var(--t),transform var(--t),visibility var(--t);
  z-index:1040;
}
.mega-wrap:hover .mega-panel,.mega-wrap.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-title{font-size:12px;letter-spacing:1.4px;color:var(--text-3);text-transform:uppercase;margin-bottom:12px}
.mega-list li{margin-bottom:10px}
.mega-list a{display:flex;align-items:center;gap:10px;color:var(--text);font-size:14px;padding:6px 0}
.mega-list a:hover{color:var(--orange)}
.mega-sq{width:12px;height:12px;background:var(--green-mid);flex:0 0 auto;border-radius:2px}
.mega-list a:hover .mega-sq{background:var(--orange)}
.mega-count{margin-left:auto;font-family:var(--num);font-size:12px;color:var(--text-3)}
.mega-post{display:block;padding:8px 0;border-bottom:1px dashed var(--line)}
.mega-post:last-child{border-bottom:none}
.mega-post b{display:block;font-size:14px;font-weight:500;color:var(--text);line-height:1.6}
.mega-post span{font-family:var(--num);font-size:12px;color:var(--text-3)}
.mega-post:hover b{color:var(--orange)}
.mega-card{
  display:block;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  background:var(--card);transition:var(--t);
}
.mega-card:hover{box-shadow:var(--sh-md);transform:translateY(-2px);border-color:rgba(228,87,46,.35)}
.mega-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.mega-card-body{padding:14px}
.mega-card-body strong{display:block;font-size:14px;color:var(--text);margin-bottom:6px}
.mega-card-body span{font-size:12px;color:var(--orange);font-weight:600}
.drawer-btn{
  display:none;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.22);
  color:#fff;width:42px;height:42px;border-radius:var(--r-btn);cursor:pointer;
}
.drawer-btn:hover{background:rgba(255,255,255,.2)}
.site-drawer{background:var(--green);color:#fff;width:320px !important}
.site-drawer .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.12);padding:18px 20px}
.drawer-title{font-size:16px;font-weight:700}
.drawer-close{background:transparent;border:none;color:rgba(255,255,255,.8);font-size:20px;line-height:1;cursor:pointer}
.drawer-close:hover{color:var(--orange)}
.site-drawer .offcanvas-body{padding:8px 20px 28px}
.drawer-nav a{display:block;padding:14px 0;color:rgba(255,255,255,.9);font-size:15px;border-bottom:1px solid rgba(255,255,255,.10)}
.drawer-nav a:hover{color:var(--orange)}
.drawer-more{margin-top:16px}
.drawer-more summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;
  padding:12px 0;font-size:14px;color:rgba(255,255,255,.72);cursor:pointer;
}
.drawer-more summary::-webkit-details-marker{display:none}
.drawer-more summary::after{content:"+";font-size:18px;color:var(--orange)}
.drawer-more[open] summary::after{content:"−"}
.drawer-more ul a{display:block;padding:10px 0;font-size:14px;color:rgba(255,255,255,.86)}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:var(--bg);border-bottom:1px solid var(--line)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:18px 0;font-size:13px;color:var(--text-3)}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--orange)}
.crumb .sep{color:#C9C4B9}
.crumb .current{color:var(--text-3);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头部 ---------- */
.article-head{
  position:relative;background:var(--green);color:#fff;overflow:hidden;
}
.article-head::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(to right,rgba(255,255,255,.06) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:24px 24px;
}
.article-head-inner{position:relative;padding:56px 0 64px;max-width:900px}
.badge-cat{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--orange-soft);color:var(--orange-dark);
  border-radius:var(--r-pill);padding:5px 14px;font-size:12px;font-weight:600;letter-spacing:.6px;
}
.article-head h1{
  font-size:42px;line-height:1.25;font-weight:700;color:#fff;
  margin:18px 0 20px;letter-spacing:.2px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:14px;color:rgba(255,255,255,.72);
}
.article-meta .divider{width:1px;height:14px;background:rgba(255,255,255,.28)}
.article-meta .num{color:rgba(255,255,255,.9)}
.article-meta i{color:var(--orange);margin-right:6px}

/* ---------- 正文卡片 ---------- */
.article-main{padding:56px 0 32px}
.article-card{
  max-width:800px;margin:0 auto;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-img);
  box-shadow:var(--sh-md);padding:48px;
}
.article-body{
  counter-reset:h2c;
  font-size:17px;line-height:1.9;color:var(--text);text-align:justify;
}
.article-body p{margin:0 0 1.25em}
.article-body h2{
  counter-increment:h2c;
  font-size:24px;line-height:1.4;font-weight:700;color:var(--text);
  margin:1.8em 0 .8em;padding-left:14px;border-left:3px solid var(--orange);
}
.article-body h2::before{
  content:counter(h2c,decimal-leading-zero);
  font-family:var(--num);font-size:16px;color:var(--orange);
  margin-right:10px;letter-spacing:1px;
}
.article-body h3{font-size:19px;line-height:1.5;font-weight:600;margin:1.5em 0 .6em;color:var(--text)}
.article-body h4{font-size:17px;font-weight:600;margin:1.3em 0 .5em;color:var(--text-2)}
.article-body ul,.article-body ol{margin:0 0 1.3em}
.article-body li{position:relative;padding-left:20px;margin-bottom:.5em}
.article-body li::before{
  content:"";position:absolute;left:0;top:.78em;width:9px;height:2px;
  background:var(--green-mid);border-radius:1px;
}
.article-body ol{counter-reset:listc}
.article-body ol li{counter-increment:listc;padding-left:26px}
.article-body ol li::before{
  content:counter(listc) ".";
  width:auto;height:auto;top:0;background:none;
  font-family:var(--num);font-size:14px;color:var(--green-mid);font-weight:700;
}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;
  border-left:3px solid var(--orange);background:var(--orange-soft);
  border-radius:0 8px 8px 0;color:var(--text-2);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:10px;margin:1.4em auto;box-shadow:var(--sh-sm)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body a{color:var(--green-mid);border-bottom:1px solid currentColor}
.article-body a:hover{color:var(--orange)}
.article-body strong{font-weight:700}
.article-body hr{border:none;border-top:1px dashed var(--line);margin:2em 0}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
}
.article-body thead th{background:var(--green);color:#fff;font-weight:600;font-size:14px;text-align:left}
.article-body th,.article-body td{padding:14px 16px;border-bottom:1px solid var(--line)}
.article-body tbody tr:nth-child(even){background:var(--zebra)}
.article-empty{
  text-align:center;padding:48px 20px;color:var(--text-2);
}
.article-empty i{font-size:34px;color:var(--text-3);display:block;margin-bottom:16px}
.article-empty h2{font-size:22px;color:var(--text);margin-bottom:10px}
.article-empty p{font-size:15px;color:var(--text-2);margin-bottom:22px}

/* ---------- 标签与操作 ---------- */
.article-foot{
  max-width:800px;margin:28px auto 0;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
}
.tag-list{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;
  background:rgba(20,104,83,.08);color:var(--green-mid);
  border-radius:var(--r-pill);padding:5px 14px;font-size:13px;font-weight:500;
}
.tag:hover{background:var(--orange-soft);color:var(--orange-dark)}
.share-bar{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3)}
.share-btn{
  width:36px;height:36px;border-radius:8px;border:1px solid var(--line);
  background:#fff;color:var(--text-2);cursor:pointer;transition:var(--t);
  display:inline-flex;align-items:center;justify-content:center;
}
.share-btn:hover{border-color:var(--green-mid);color:var(--green-mid);transform:translateY(-2px)}
.back-row{max-width:800px;margin:28px auto 0}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 22px;border-radius:var(--r-btn);
  border:1.5px solid var(--green-mid);background:transparent;color:var(--green-mid);
  font-size:14px;font-weight:600;transition:var(--t);
}
.btn-ghost:hover{background:rgba(20,104,83,.08);color:var(--green);border-color:var(--green)}

/* ---------- 延伸业务入口 ---------- */
.related{padding:64px 0 8px}
.sec-head{margin-bottom:32px;max-width:720px}
.sec-kicker{display:flex;align-items:center;gap:10px;font-size:12px;letter-spacing:3px;color:var(--text-3)}
.sec-kicker::before{content:"";width:24px;height:2px;background:var(--orange)}
.sec-head h2{font-size:30px;line-height:1.35;font-weight:700;margin:12px 0 10px}
.sec-head p{font-size:15px;color:var(--text-2)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-sm);overflow:hidden;transition:var(--t);display:flex;flex-direction:column;
}
.card:hover{box-shadow:var(--sh-md);transform:translateY(-2px);border-color:rgba(228,87,46,.35)}
.card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.card-body{padding:24px;display:flex;flex-direction:column;flex:1}
.card-body h3{font-size:19px;line-height:1.5;font-weight:600;margin-bottom:10px;color:var(--text)}
.card-body p{font-size:14px;line-height:1.7;color:var(--text-2);margin-bottom:18px}
.card-link{margin-top:auto;font-size:14px;font-weight:600;color:var(--green-mid);display:inline-flex;align-items:center;gap:8px}
.card-link i{transition:transform var(--t)}
.card:hover .card-link{color:var(--orange)}
.card:hover .card-link i{transform:translateX(4px)}

/* ---------- 转化表单 ---------- */
.cta-section{background:var(--green);color:#fff;margin-top:72px;padding:88px 0;position:relative;overflow:hidden}
.cta-section::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(to right,rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:24px 24px;
}
.cta-grid{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.cta-info h2{font-size:30px;line-height:1.35;font-weight:700;color:#fff;margin:14px 0 16px}
.cta-info p{font-size:15px;color:rgba(255,255,255,.75);margin-bottom:24px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:3px;color:rgba(255,255,255,.62)}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--orange)}
.cta-points li{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:rgba(255,255,255,.82);margin-bottom:12px}
.cta-points i{color:var(--orange);margin-top:5px;font-size:13px}
.cta-form-card{background:#fff;border-radius:var(--r-img);padding:32px;box-shadow:var(--sh-md)}
.form-row{margin-bottom:18px}
.form-row label{display:block;font-size:14px;color:var(--text-2);margin-bottom:8px}
.form-control-x{
  width:100%;height:46px;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:0 14px;font-size:15px;color:var(--text);background:#fff;transition:var(--t);
}
textarea.form-control-x{height:auto;min-height:120px;padding:12px 14px;line-height:1.7;resize:vertical}
.form-control-x::placeholder{color:var(--text-3)}
.form-control-x:focus{outline:none;border-color:var(--orange);box-shadow:0 0 0 3px rgba(228,87,46,.18)}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--orange);color:#fff;border:none;border-radius:var(--r-btn);
  padding:12px 24px;font-size:15px;font-weight:600;cursor:pointer;transition:var(--t);
}
.btn-main:hover{background:var(--orange-dark);color:#fff;transform:translateY(-1px)}
.btn-main:active{transform:translateY(0)}
.btn-main:disabled{opacity:.6;cursor:not-allowed}
.btn-block{width:100%}
.form-note{font-size:12px;color:var(--text-3);margin-top:12px;text-align:center}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--green);color:#fff;padding:64px 0 0;border-top:1px solid rgba(255,255,255,.08)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--orange)}
.footer-brand strong{display:block;font-size:16px;font-weight:700}
.fb-sub{display:block;font-size:12px;color:rgba(255,255,255,.6);letter-spacing:1px}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.68)}
.footer-title{font-size:14px;font-weight:600;margin-bottom:16px;letter-spacing:.5px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.68)}
.footer-links a:hover{color:var(--orange);text-decoration:underline;text-underline-offset:4px}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.68);margin-bottom:12px}
.footer-contact i{color:var(--orange);margin-top:5px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:var(--orange);text-decoration:underline;text-underline-offset:4px}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{max-width:960px}
  .mega-panel{width:720px}
}
@media (max-width:991px){
  .main-nav{display:none}
  .drawer-btn{display:inline-flex;align-items:center;justify-content:center}
  .mega-wrap{display:none}
  .article-head h1{font-size:32px}
  .grid-3{grid-template-columns:repeat(2,1fr);gap:24px}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-section{padding:64px 0}
}
@media (max-width:767px){
  .header-inner{height:60px}
  .brand-text strong{font-size:15px}
  .brand-text em{display:none}
  .article-head-inner{padding:40px 0 48px}
  .article-head h1{font-size:28px;line-height:1.3}
  .article-main{padding:36px 0 24px}
  .article-card{padding:20px;border-radius:12px}
  .article-body{font-size:16px;line-height:1.85;text-align:left}
  .article-body h2{font-size:21px}
  .article-body table{font-size:14px;display:block;overflow-x:auto;white-space:nowrap}
  .grid-3{grid-template-columns:1fr}
  .related{padding:48px 0 0}
  .sec-head h2{font-size:22px}
  .cta-section{margin-top:48px;padding:48px 0}
  .cta-info h2{font-size:22px}
  .cta-form-card{padding:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .btn-main,.btn-ghost,.btn-block{width:100%}
  .article-foot{flex-direction:column;align-items:flex-start}
}
@media (max-width:575px){
  .container{padding:0 16px}
  .article-body{font-size:15px}
  .card-body{padding:16px}
  .crumb .current{white-space:normal}
}

/* roulang page: category1 */
:root{
  --green:#0C3B34;
  --green-deep:#0A322C;
  --green-mid:#146853;
  --orange:#E4572E;
  --orange-deep:#C94822;
  --orange-soft:#FDEBE3;
  --bg:#F7F5F0;
  --white:#FFFFFF;
  --zebra:#FBFAF7;
  --ink:#14181A;
  --ink-2:#5A625E;
  --ink-3:#8A918D;
  --line:#E4E0D7;
  --r-card:10px;
  --r-btn:8px;
  --r-img:14px;
  --sh-sm:0 1px 2px rgba(10,50,44,.06);
  --sh-md:0 8px 24px rgba(10,50,44,.08);
  --s1:8px; --s2:12px; --s3:16px; --s4:24px; --s5:32px; --s6:48px; --s7:64px; --s8:88px;
  --font-cn:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei',system-ui,sans-serif;
  --font-num:'DIN Alternate','Barlow','Roboto Mono',sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--green-mid);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--orange);}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul{padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(228,87,46,.25);border-radius:4px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}

/* ---------- 网格底纹 ---------- */
.grid-bg{
  background-image:
    linear-gradient(to right,rgba(228,224,215,.85) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(228,224,215,.85) 1px,transparent 1px);
  background-size:24px 24px;
}

/* ---------- 头部导航 ---------- */
.site-header{
  background:var(--green);
  border-bottom:1px solid rgba(255,255,255,.08);
  position:sticky;
  top:0;
  z-index:1040;
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:72px;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  color:#fff;
  flex-shrink:0;
}
.brand:hover{color:#fff;}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;height:42px;
  border:1.75px solid rgba(255,255,255,.5);
  border-radius:var(--r-btn);
  font-family:var(--font-num);
  font-weight:700;
  font-size:16px;
  letter-spacing:.5px;
  background:var(--green-deep);
  color:#fff;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:17px;font-weight:600;letter-spacing:.3px;}
.brand-text span{font-size:12px;color:rgba(255,255,255,.62);letter-spacing:1.5px;}
.main-nav{
  display:flex;
  align-items:center;
  gap:28px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  color:rgba(255,255,255,.82);
  font-size:15px;
  font-weight:500;
  padding:24px 2px;
  transition:color .18s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:16px;
  height:3px;
  background:var(--orange);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .18s ease,opacity .18s ease;
  opacity:0;
}
.nav-link:hover{color:#fff;}
.nav-link:hover::after{transform:scaleX(1);opacity:.6;}
.nav-link.is-active{color:#fff;background:rgba(255,255,255,.06);border-radius:6px 6px 0 0;}
.nav-link.is-active::after{transform:scaleX(1);opacity:1;}
.header-actions{display:flex;align-items:center;gap:12px;}

/* Mega 面板 */
.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:transparent;
  border:1px solid rgba(255,255,255,.32);
  color:#fff;
  font-size:14px;
  font-weight:500;
  padding:8px 16px;
  border-radius:var(--r-btn);
  cursor:pointer;
  transition:background-color .18s ease,border-color .18s ease,color .18s ease;
}
.mega-trigger:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.5);}
.mega-trigger:active{background:rgba(255,255,255,.16);}
.mega-trigger i{font-size:11px;transition:transform .18s ease;}
.mega-trigger[aria-expanded="true"] i{transform:rotate(180deg);}
.mega-panel{
  position:absolute;
  top:calc(100% + 14px);
  right:0;
  width:800px;
  background:#fff;
  border-top:3px solid var(--orange);
  border-radius:12px;
  box-shadow:var(--sh-md);
  padding:26px 26px 24px;
  display:none;
  z-index:1050;
}
.mega-panel.is-open{display:block;}
.mega-grid{display:grid;grid-template-columns:1.1fr 1.1fr 1fr;gap:24px;}
.mega-col-title{
  font-size:12px;
  letter-spacing:2px;
  color:var(--ink-3);
  margin-bottom:12px;
  font-weight:600;
}
.mega-list li + li{margin-top:8px;}
.mega-list a{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--ink);
  font-size:14px;
  padding:7px 8px;
  border-radius:6px;
  transition:background-color .18s ease,color .18s ease;
}
.mega-list a:hover{background:var(--orange-soft);color:var(--orange-deep);}
.mega-dot{
  width:12px;height:12px;
  flex:0 0 12px;
  border-radius:3px;
  background:var(--green-mid);
}
.mega-dot.alt{background:var(--orange);}
.mega-count{margin-left:auto;font-size:12px;color:var(--ink-3);font-family:var(--font-num);font-variant-numeric:tabular-nums;}
.mega-news a{
  display:block;
  padding:8px 0;
  border-bottom:1px dashed var(--line);
  font-size:14px;
  color:var(--ink);
  line-height:1.5;
}
.mega-news li:last-child a{border-bottom:0;}
.mega-news a:hover{color:var(--orange);}
.mega-news .date{
  display:block;
  font-size:12px;
  color:var(--ink-3);
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  margin-top:2px;
}
.mega-card{
  display:block;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  background:var(--zebra);
  transition:box-shadow .18s ease,transform .18s ease;
}
.mega-card:hover{box-shadow:var(--sh-md);transform:translateY(-2px);}
.mega-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.mega-card-body{padding:12px 14px 14px;}
.mega-card-body strong{display:block;font-size:14px;color:var(--ink);line-height:1.5;}
.mega-card-body span{font-size:12px;color:var(--orange);}

.nav-toggle{
  display:none;
  background:transparent;
  border:1px solid rgba(255,255,255,.32);
  color:#fff;
  width:40px;height:40px;
  border-radius:var(--r-btn);
  cursor:pointer;
}
.nav-toggle:hover{background:rgba(255,255,255,.1);}

/* offcanvas 移动导航 */
.offcanvas.ng-drawer{background:var(--green);color:#fff;width:320px;}
.ng-drawer .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.12);padding:18px 20px;}
.ng-drawer .offcanvas-title{font-size:16px;font-weight:600;letter-spacing:.5px;}
.ng-drawer .btn-close{filter:invert(1) grayscale(1);opacity:.7;}
.ng-drawer .offcanvas-body{padding:16px 20px 32px;}
.drawer-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  color:rgba(255,255,255,.85);
  font-size:15px;
  padding:14px 0;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.drawer-link:hover,.drawer-link.is-active{color:#fff;}
.drawer-link.is-active{border-left:3px solid var(--orange);padding-left:12px;}
.drawer-sub{font-size:13px;color:rgba(255,255,255,.55);}

/* ---------- 分类横幅 ---------- */
.cat-banner{
  position:relative;
  background:var(--green-deep) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color:#fff;
  overflow:hidden;
}
.cat-banner::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,rgba(10,50,44,.95) 0%,rgba(10,50,44,.86) 48%,rgba(10,50,44,.68) 100%);
}
.cat-banner-inner{position:relative;padding:56px 0 48px;}
.crumb{
  font-size:13px;
  color:rgba(255,255,255,.6);
  margin-bottom:16px;
}
.crumb a{color:rgba(255,255,255,.75);}
.crumb a:hover{color:var(--orange);}
.crumb .sep{margin:0 8px;color:rgba(255,255,255,.35);}
.crumb .current{color:var(--ink-3);}
.cat-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:1.5px;
  padding:5px 14px;
  border-radius:999px;
  background:rgba(228,87,46,.16);
  color:#F7B79F;
  border:1px solid rgba(228,87,46,.4);
  margin-bottom:18px;
}
.cat-banner h1{
  font-size:42px;
  line-height:1.25;
  font-weight:700;
  letter-spacing:.5px;
  margin-bottom:16px;
}
.cat-banner .lead{
  font-size:16px;
  line-height:1.85;
  color:rgba(255,255,255,.78);
  max-width:760px;
}
.anchor-nav{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:28px;
}
.anchor-nav a{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  padding:8px 18px;
  border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.28);
  color:rgba(255,255,255,.9);
  transition:all .18s ease;
}
.anchor-nav a:hover{background:var(--orange);border-color:var(--orange);color:#fff;}
.anchor-nav a:active{background:var(--orange-deep);border-color:var(--orange-deep);}
.anchor-nav a i{font-size:11px;}

/* ---------- 数据条 ---------- */
.stat-strip{
  background:#fff;
  border-bottom:1px solid var(--line);
}
.stat-strip-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
}
.stat-cell{
  padding:24px 24px;
  border-left:1px solid var(--line);
  position:relative;
}
.stat-cell:first-child{border-left:0;}
.stat-cell::before{
  content:"";
  position:absolute;
  left:0;top:24px;bottom:24px;
  width:3px;
  background:var(--orange);
  opacity:0;
}
.stat-cell:first-child::before{opacity:1;}
.stat-name{font-size:14px;color:var(--ink-3);}
.stat-value{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:36px;
  font-weight:700;
  line-height:1.1;
  color:var(--green);
  margin:6px 0 4px;
}
.stat-value small{font-size:16px;font-weight:600;margin-left:4px;color:var(--ink-2);}
.stat-note{font-size:13px;color:var(--ink-2);}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{margin-bottom:44px;max-width:760px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-num);
  font-size:12px;
  letter-spacing:2px;
  color:var(--orange);
  font-weight:700;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:28px;height:2px;background:var(--orange);}
.section-head h2{
  font-size:30px;
  line-height:1.35;
  font-weight:700;
  color:var(--ink);
  margin-bottom:14px;
}
.section-head p{font-size:16px;color:var(--ink-2);line-height:1.85;}

/* ---------- 参数要点卡 ---------- */
.point-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.point-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--sh-sm);
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.point-card:hover{
  box-shadow:var(--sh-md);
  transform:translateY(-2px);
  border-color:rgba(228,87,46,.35);
}
.point-index{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:13px;
  font-weight:700;
  color:var(--orange);
  letter-spacing:1px;
  margin-bottom:14px;
}
.point-card h3{font-size:19px;line-height:1.5;font-weight:600;margin-bottom:10px;}
.point-card p{font-size:14px;line-height:1.75;color:var(--ink-2);}

/* ---------- 图左文右条目列表 ---------- */
.item-list{display:flex;flex-direction:column;gap:32px;}
.item-row{
  display:grid;
  grid-template-columns:340px 1fr;
  gap:32px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-sm);
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.item-row:hover{
  box-shadow:var(--sh-md);
  transform:translateY(-2px);
  border-color:rgba(228,87,46,.3);
}
.item-row figure{margin:0;height:100%;}
.item-row img{
  width:100%;
  height:100%;
  min-height:230px;
  object-fit:cover;
  border-radius:0;
}
.item-body{padding:28px 32px 28px 0;display:flex;flex-direction:column;}
.item-meta{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:12px;
}
.chip{
  display:inline-flex;
  align-items:center;
  font-size:12px;
  padding:4px 12px;
  border-radius:999px;
  background:var(--orange-soft);
  color:var(--orange-deep);
  font-weight:600;
  letter-spacing:.5px;
}
.chip.green{background:rgba(20,104,83,.1);color:var(--green-mid);}
.item-body h3{font-size:22px;line-height:1.45;font-weight:600;margin-bottom:10px;}
.item-body p{font-size:15px;line-height:1.85;color:var(--ink-2);}
.spec-list{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:8px 24px;
  margin-top:16px;
}
.spec-list li{
  display:flex;
  align-items:baseline;
  gap:8px;
  font-size:14px;
  color:var(--ink-2);
  position:relative;
  padding-left:16px;
}
.spec-list li::before{
  content:"";
  position:absolute;
  left:0;top:10px;
  width:8px;height:2px;
  background:var(--green-mid);
}
.spec-list li b{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  color:var(--ink);
  font-weight:600;
}
.item-link{
  margin-top:20px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--green-mid);
  border-bottom:1px solid transparent;
  align-self:flex-start;
}
.item-link:hover{color:var(--orange);border-bottom-color:var(--orange);}
.item-link i{font-size:12px;transition:transform .18s ease;}
.item-link:hover i{transform:translateX(3px);}

/* ---------- 速查表 ---------- */
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  padding:16px 20px;
  background:var(--zebra);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  margin-bottom:24px;
}
.filter-bar .filter-label{font-size:14px;color:var(--ink-2);font-weight:600;margin-right:4px;}
.filter-tag{
  font-size:13px;
  padding:6px 16px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--line);
  color:var(--ink-2);
  transition:all .18s ease;
}
.filter-tag:hover{border-color:rgba(228,87,46,.5);color:var(--orange-deep);}
.filter-tag.is-on{background:var(--green);border-color:var(--green);color:#fff;}
.table-wrap{
  overflow-x:auto;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:#fff;
  box-shadow:var(--sh-sm);
}
table.ng-table{
  width:100%;
  min-width:760px;
  border-collapse:collapse;
  margin:0;
}
table.ng-table thead th{
  background:var(--green);
  color:#fff;
  font-size:14px;
  font-weight:600;
  padding:14px 16px;
  text-align:left;
  white-space:nowrap;
  border:0;
}
table.ng-table tbody td{
  padding:14px 16px;
  font-size:14px;
  color:var(--ink-2);
  border-top:1px solid var(--line);
  vertical-align:middle;
}
table.ng-table tbody tr:nth-child(even){background:var(--zebra);}
table.ng-table tbody tr:hover{background:var(--orange-soft);}
table.ng-table tbody td.strong{color:var(--ink);font-weight:600;}
table.ng-table .num-col{
  text-align:right;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
}
.table-note{
  font-size:13px;
  color:var(--ink-3);
  margin-top:14px;
}

/* ---------- 配合方式 ---------- */
.coop-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:32px;
  align-items:stretch;
}
.coop-steps{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:32px;
  box-shadow:var(--sh-sm);
}
.coop-steps h3{font-size:19px;font-weight:600;margin-bottom:22px;}
.step{
  display:flex;
  gap:18px;
  padding-bottom:22px;
  position:relative;
}
.step:last-child{padding-bottom:0;}
.step::before{
  content:"";
  position:absolute;
  left:15px;
  top:32px;
  bottom:0;
  width:2px;
  background:var(--line);
}
.step:last-child::before{display:none;}
.step-no{
  flex:0 0 32px;
  width:32px;height:32px;
  border-radius:50%;
  border:1.75px solid var(--green-mid);
  color:var(--green-mid);
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:13px;
  font-weight:700;
  background:#fff;
  position:relative;
  z-index:1;
}
.step:first-child .step-no{border-color:var(--orange);color:var(--orange);}
.step h4{font-size:16px;font-weight:600;margin-bottom:6px;}
.step p{font-size:14px;line-height:1.75;color:var(--ink-2);}
.coop-aside{
  background:var(--green);
  border-radius:var(--r-card);
  color:#fff;
  overflow:hidden;
  display:flex;
  flex-direction:column;
}
.coop-aside img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.coop-aside-body{padding:26px 28px 30px;}
.coop-aside-body h3{font-size:20px;font-weight:600;margin-bottom:12px;}
.coop-aside-body p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.75);margin-bottom:20px;}
.btn-ghost-light{
  display:inline-flex;
  align-items:center;
  gap:8px;
  border:1.5px solid rgba(255,255,255,.6);
  color:#fff;
  font-size:14px;
  font-weight:600;
  padding:10px 22px;
  border-radius:var(--r-btn);
  transition:all .18s ease;
}
.btn-ghost-light:hover{background:#fff;color:var(--green);border-color:#fff;}
.btn-ghost-light:active{background:rgba(255,255,255,.85);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:840px;margin:0 auto;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-sm);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:17px 22px;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  min-height:56px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  flex:0 0 24px;
  width:24px;height:24px;
  border-radius:50%;
  border:1.5px solid var(--line);
  position:relative;
  transition:all .18s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--ink-2);
  transition:all .18s ease;
}
.faq-icon::before{left:6px;right:6px;top:11px;height:1.75px;}
.faq-icon::after{top:6px;bottom:6px;left:11px;width:1.75px;}
.faq-item[open]{border-color:rgba(228,87,46,.4);box-shadow:var(--sh-md);}
.faq-item[open] summary{color:var(--orange-deep);}
.faq-item[open] .faq-icon{border-color:var(--orange);background:var(--orange-soft);}
.faq-item[open] .faq-icon::before{background:var(--orange);}
.faq-item[open] .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-content{
  padding:0 22px 22px;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-2);
  border-left:3px solid var(--orange);
  margin-left:22px;
  padding-left:20px;
}

/* ---------- 转化表单 ---------- */
.cta-section{
  background:var(--green);
  color:#fff;
  padding:88px 0;
}
.cta-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:start;
}
.cta-left .eyebrow{color:#F7B79F;}
.cta-left .eyebrow::before{background:var(--orange);}
.cta-left h2{font-size:30px;line-height:1.35;font-weight:700;margin-bottom:16px;}
.cta-left p{font-size:15px;line-height:1.85;color:rgba(255,255,255,.75);}
.contact-list{margin-top:28px;}
.contact-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:14px;
  color:rgba(255,255,255,.78);
  padding:10px 0;
  border-bottom:1px dashed rgba(255,255,255,.14);
}
.contact-list li:last-child{border-bottom:0;}
.contact-list i{color:var(--orange);margin-top:4px;font-size:14px;}
.form-card{
  background:#fff;
  color:var(--ink);
  border-radius:var(--r-card);
  padding:32px;
  box-shadow:var(--sh-md);
}
.form-card h3{font-size:20px;font-weight:600;margin-bottom:8px;}
.form-card .form-sub{font-size:14px;color:var(--ink-2);margin-bottom:24px;}
.field{margin-bottom:18px;}
.field label{
  display:block;
  font-size:14px;
  color:var(--ink-2);
  margin-bottom:8px;
}
.field input,.field textarea{
  width:100%;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  padding:0 14px;
  height:46px;
  font-size:15px;
  background:#fff;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{height:auto;min-height:120px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input:focus,.field textarea:focus{
  outline:none;
  border-color:var(--orange);
  box-shadow:0 0 0 3px rgba(228,87,46,.18);
}
.btn-primary-ng{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  background:var(--orange);
  color:#fff;
  border:0;
  font-size:15px;
  font-weight:600;
  padding:12px 24px;
  border-radius:var(--r-btn);
  cursor:pointer;
  transition:background-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary-ng:hover{background:var(--orange-deep);color:#fff;transform:translateY(-1px);box-shadow:0 6px 16px rgba(201,72,34,.28);}
.btn-primary-ng:active{transform:translateY(0);box-shadow:none;}
.btn-primary-ng.full{width:100%;}
.btn-secondary-ng{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  background:transparent;
  border:1.5px solid var(--green);
  color:var(--green);
  font-size:15px;
  font-weight:600;
  padding:11px 24px;
  border-radius:var(--r-btn);
  cursor:pointer;
  transition:all .18s ease;
}
.btn-secondary-ng:hover{background:rgba(12,59,52,.06);color:var(--green);}
.form-hint{font-size:13px;color:var(--ink-3);margin-top:14px;line-height:1.7;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--green);
  color:rgba(255,255,255,.78);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:12px;
  color:#fff;
  margin-bottom:16px;
}
.footer-brand .brand-mark{background:rgba(255,255,255,.06);}
.footer-brand strong{display:block;font-size:17px;font-weight:600;color:#fff;}
.fb-sub{display:block;font-size:12px;letter-spacing:1.5px;color:rgba(255,255,255,.6);}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.7);max-width:320px;}
.footer-title{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:18px;
}
.footer-links li{margin-bottom:10px;}
.footer-links a{
  font-size:14px;
  color:rgba(255,255,255,.72);
  border-bottom:1px solid transparent;
  transition:all .18s ease;
}
.footer-links a:hover{color:#fff;border-bottom-color:var(--orange);}
.footer-contact li{
  display:flex;
  gap:10px;
  font-size:14px;
  line-height:1.75;
  color:rgba(255,255,255,.72);
  margin-bottom:12px;
}
.footer-contact i{color:var(--orange);margin-top:4px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:rgba(255,255,255,.6);
}
.footer-bottom a{color:rgba(255,255,255,.6);border-bottom:1px solid transparent;}
.footer-bottom a:hover{color:#fff;border-bottom-color:var(--orange);}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .container{max-width:960px;}
  .mega-panel{width:700px;}
  .point-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991.98px){
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .cat-banner h1{font-size:34px;}
  .stat-strip-grid{grid-template-columns:repeat(2,1fr);}
  .stat-cell:nth-child(3){border-left:0;}
  .stat-cell:nth-child(n+3){border-top:1px solid var(--line);}
  .item-row{grid-template-columns:280px 1fr;gap:24px;}
  .item-body{padding:24px 24px 24px 0;}
  .coop-grid{grid-template-columns:1fr;}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:64px 0;}
  .cta-section{padding:64px 0;}
}
@media (max-width:767.98px){
  .container{padding:0 16px;}
  .header-inner{min-height:60px;}
  .brand-text span{display:none;}
  .cat-banner-inner{padding:40px 0 36px;}
  .cat-banner h1{font-size:28px;line-height:1.3;}
  .section{padding:48px 0;}
  .cta-section{padding:48px 0;}
  .section-head{margin-bottom:28px;}
  .section-head h2{font-size:22px;}
  .point-grid{grid-template-columns:1fr;gap:16px;}
  .point-card{padding:20px;}
  .item-row{grid-template-columns:1fr;gap:0;}
  .item-row img{min-height:190px;border-radius:0;}
  .item-body{padding:22px 20px 24px;}
  .item-body h3{font-size:19px;}
  .spec-list{grid-template-columns:1fr;}
  .anchor-nav a{padding:7px 14px;font-size:13px;}
  .stat-cell{padding:20px;}
  .stat-value{font-size:32px;}
  .coop-steps{padding:22px;}
  .form-card{padding:22px;}
  .coop-aside-body{padding:22px;}
  .faq-item summary{font-size:16px;padding:15px 18px;}
  .faq-content{margin-left:18px;padding-left:16px;padding-right:18px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:575.98px){
  body{font-size:15px;}
  .stat-strip-grid{grid-template-columns:1fr;}
  .stat-cell{border-left:0;border-top:1px solid var(--line);}
  .stat-cell:first-child{border-top:0;}
  .btn-primary-ng,.btn-secondary-ng,.btn-ghost-light{width:100%;}
  .item-link{align-self:stretch;}
}

/* roulang page: category2 */
:root{
  --brand:#0C3B34;
  --brand-deep:#0A322C;
  --brand-mid:#146853;
  --accent:#E4572E;
  --accent-deep:#C94822;
  --accent-soft:#FDEBE3;
  --bg:#F7F5F0;
  --card:#FFFFFF;
  --zebra:#FBFAF7;
  --ink:#14181A;
  --ink-2:#5A625E;
  --ink-3:#8A918D;
  --line:#E4E0D7;
  --radius-card:10px;
  --radius-btn:8px;
  --radius-lg:14px;
  --shadow-sm:0 1px 2px rgba(10,50,44,.06);
  --shadow-md:0 8px 24px rgba(10,50,44,.08);
  --num:'DIN Alternate','Barlow','Roboto Mono',ui-monospace,SFMono-Regular,sans-serif;
  --sans:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  --ease:.18s ease;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;object-fit:cover;}
a{color:inherit;text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease),opacity var(--ease);}
a:hover{color:var(--accent);}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul{list-style:none;padding:0;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(228,87,46,.25);border-radius:4px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

/* ============ 通用块 ============ */
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--grid-bg{
  background-color:var(--bg);
  background-image:
    linear-gradient(to right,rgba(228,224,215,.75) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(228,224,215,.75) 1px,transparent 1px);
  background-size:24px 24px;
}
.sec-head{max-width:760px;margin-bottom:40px;}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;font-weight:600;
  color:var(--brand-mid);text-transform:uppercase;
  margin-bottom:14px;
}
.sec-eyebrow::before{content:"";width:22px;height:3px;background:var(--accent);border-radius:2px;}
.sec-title{
  font-size:30px;line-height:1.35;font-weight:700;color:var(--ink);
  margin-bottom:14px;
}
.sec-desc{font-size:16px;color:var(--ink-2);max-width:680px;}
.num{font-family:var(--num);font-variant-numeric:tabular-nums;}

/* ============ 按钮 ============ */
.btn-main,.btn-ghost,.btn-text{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;font-size:15px;line-height:1;
  border-radius:var(--radius-btn);
  transition:all var(--ease);
}
.btn-main{
  padding:14px 26px;background:var(--accent);color:#fff;border:1px solid var(--accent);
  box-shadow:var(--shadow-sm);
}
.btn-main:hover{background:var(--accent-deep);border-color:var(--accent-deep);color:#fff;transform:translateY(-1px);}
.btn-main:active{transform:translateY(0);}
.btn-ghost{
  padding:13px 24px;background:transparent;color:var(--brand);border:1.5px solid var(--brand);
}
.btn-ghost:hover{background:rgba(12,59,52,.08);color:var(--brand);}
.btn-text{
  padding:6px 0;color:var(--brand-mid);border-bottom:1px solid rgba(20,104,83,.4);border-radius:0;
}
.btn-text:hover{color:var(--accent);border-bottom-color:var(--accent);}
.btn-main.btn-wide{width:100%;}

/* ============ 徽章 ============ */
.badge-soft{
  display:inline-block;
  padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:rgba(20,104,83,.1);color:var(--brand-mid);
}
.badge-warm{background:var(--accent-soft);color:var(--accent-deep);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--brand);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;
  display:flex;align-items:center;justify-content:center;
  background:var(--accent);color:#fff;border-radius:8px;
  font-family:var(--num);font-weight:700;font-size:16px;letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{color:#fff;font-size:17px;font-weight:700;letter-spacing:.01em;}
.brand-text .brand-sub{color:rgba(255,255,255,.6);font-size:11px;letter-spacing:.16em;}
.brand:hover .brand-text strong{color:#fff;}

.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.main-nav .nav-link{
  position:relative;
  padding:10px 14px;
  font-size:15px;font-weight:500;
  color:rgba(255,255,255,.82);
  border-radius:6px;
  white-space:nowrap;
}
.main-nav .nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:3px;
  background:transparent;border-radius:2px;transition:background var(--ease);
}
.main-nav .nav-link:hover{color:#fff;background:rgba(255,255,255,.07);}
.main-nav .nav-link:hover::after{background:rgba(228,87,46,.6);}
.main-nav .nav-link.is-active{
  color:#fff;background:rgba(255,255,255,.1);
}
.main-nav .nav-link.is-active::after{background:var(--accent);}

.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.header-actions .btn-main{padding:11px 20px;font-size:14px;}

.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 16px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.28);
  color:#fff;font-size:14px;font-weight:600;
  transition:all var(--ease);
}
.mega-trigger:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.5);}
.mega-trigger i{font-size:11px;transition:transform var(--ease);}
.mega-trigger[aria-expanded="true"]{background:rgba(255,255,255,.12);border-color:#fff;}
.mega-trigger[aria-expanded="true"] i{transform:rotate(180deg);}

.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;
  width:800px;max-width:calc(100vw - 48px);
  background:#fff;border-radius:0 0 12px 12px;
  border-top:3px solid var(--accent);
  box-shadow:var(--shadow-md);
  padding:26px;
  display:grid;grid-template-columns:1.1fr 1.2fr 1fr;gap:26px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
}
.mega-panel.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.mega-title{
  font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--ink-3);
  margin-bottom:14px;
}
.mega-cat{display:flex;flex-direction:column;gap:8px;}
.mega-cat a{
  display:flex;align-items:center;gap:10px;
  padding:7px 8px;border-radius:6px;font-size:14px;color:var(--ink-2);
}
.mega-cat a:hover{background:var(--zebra);color:var(--brand);}
.mega-cat .sq{
  width:12px;height:12px;flex:0 0 12px;border-radius:3px;
  background:var(--brand-mid);
}
.mega-cat .cnt{
  margin-left:auto;font-family:var(--num);font-size:12px;color:var(--ink-3);
}
.mega-news{display:flex;flex-direction:column;gap:12px;}
.mega-news a{display:block;padding:8px 0;border-bottom:1px dashed var(--line);}
.mega-news a:last-child{border-bottom:0;}
.mega-news .n-title{
  display:block;font-size:14px;line-height:1.55;color:var(--ink);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.mega-news a:hover .n-title{color:var(--accent);}
.mega-news .n-date{font-family:var(--num);font-size:12px;color:var(--ink-3);}
.mega-card{
  display:block;border:1px solid var(--line);border-radius:10px;overflow:hidden;
  transition:all var(--ease);background:#fff;
}
.mega-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:rgba(228,87,46,.35);}
.mega-card img{width:100%;aspect-ratio:16/10;}
.mega-card .mc-body{padding:14px 16px 16px;}
.mega-card h4{font-size:15px;font-weight:600;color:var(--ink);margin-bottom:4px;}
.mega-card span{font-size:13px;color:var(--brand-mid);}

.nav-toggle{
  display:none;width:42px;height:42px;border-radius:8px;
  border:1px solid rgba(255,255,255,.28);color:#fff;font-size:16px;
  align-items:center;justify-content:center;
}
.nav-toggle:hover{background:rgba(255,255,255,.12);}

.offcanvas{background:var(--brand);color:#fff;}
.offcanvas-header{border-bottom:1px solid rgba(255,255,255,.12);}
.offcanvas-title{font-size:17px;font-weight:700;color:#fff;}
.oc-list{display:flex;flex-direction:column;gap:4px;padding:16px 0;}
.oc-list a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 12px;border-radius:8px;color:rgba(255,255,255,.88);font-size:15px;
}
.oc-list a:hover,.oc-list a.is-active{background:rgba(255,255,255,.1);color:#fff;}
.oc-list a.is-active{border-left:3px solid var(--accent);}
.oc-foot{padding-top:16px;border-top:1px solid rgba(255,255,255,.12);color:rgba(255,255,255,.6);font-size:13px;}

/* ============ 分类头 ============ */
.cat-hero{
  position:relative;
  background-color:var(--brand);
  background-image:
    linear-gradient(to right,rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(115deg,rgba(12,59,52,.94) 0%,rgba(10,50,44,.9) 55%,rgba(20,104,83,.86) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:24px 24px,24px 24px,cover,cover;
  background-position:0 0,0 0,center,center;
  color:#fff;
  padding:64px 0 0;
  overflow:hidden;
}
.cat-hero .breadcrumb-line{
  font-size:13px;color:rgba(255,255,255,.6);margin-bottom:22px;
}
.cat-hero .breadcrumb-line a{color:rgba(255,255,255,.75);}
.cat-hero .breadcrumb-line a:hover{color:var(--accent);}
.cat-hero .breadcrumb-line span.sep{margin:0 8px;color:rgba(255,255,255,.35);}
.cat-hero h1{
  font-size:42px;line-height:1.25;font-weight:700;letter-spacing:-.01em;
  max-width:820px;margin-bottom:18px;
}
.cat-hero .lead{
  font-size:17px;line-height:1.85;color:rgba(255,255,255,.8);
  max-width:720px;margin-bottom:28px;
}
.hero-anchors{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:44px;}
.hero-anchors a{
  padding:8px 16px;border-radius:999px;font-size:13px;font-weight:500;
  border:1px solid rgba(255,255,255,.3);color:rgba(255,255,255,.88);
}
.hero-anchors a:hover{background:var(--accent);border-color:var(--accent);color:#fff;}

.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:rgba(0,0,0,.18);
  border-top:1px solid rgba(255,255,255,.14);
}
.hero-stats .hs{
  padding:22px 24px;
  border-right:1px solid rgba(255,255,255,.12);
}
.hero-stats .hs:last-child{border-right:0;}
.hero-stats .hs-name{font-size:13px;color:rgba(255,255,255,.62);margin-bottom:6px;}
.hero-stats .hs-val{
  font-family:var(--num);font-variant-numeric:tabular-nums;
  font-size:34px;font-weight:700;line-height:1;color:#fff;
}
.hero-stats .hs-val em{font-style:normal;font-size:14px;font-weight:500;margin-left:4px;color:rgba(255,255,255,.65);}
.hero-stats .hs-note{font-size:12px;color:rgba(255,255,255,.55);margin-top:8px;}

/* ============ 指标看板 ============ */
.metric-board{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.metric-card{
  background:var(--card);border:1px solid var(--line);border-left:3px solid var(--accent);
  border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-sm);
  transition:box-shadow var(--ease),transform var(--ease);
}
.metric-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);}
.metric-card .m-name{font-size:14px;color:var(--ink-2);margin-bottom:12px;}
.metric-card .m-val{
  font-family:var(--num);font-variant-numeric:tabular-nums;
  font-size:52px;line-height:1;font-weight:700;color:var(--brand);
}
.metric-card .m-val.warm{color:var(--accent);}
.metric-card .m-val em{font-style:normal;font-size:16px;font-weight:600;color:var(--ink-3);margin-left:6px;}
.metric-card .m-note{font-size:13px;color:var(--ink-3);margin-top:12px;line-height:1.7;}

/* ============ 卡片网格 ============ */
.tile-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;}
.tile{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.tile:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:rgba(228,87,46,.35);}
.tile-link{display:block;height:100%;}
.tile-media{position:relative;overflow:hidden;background:var(--zebra);}
.tile-media img{width:100%;aspect-ratio:16/10;transition:transform .35s ease;}
.tile:hover .tile-media img{transform:scale(1.03);}
.tile-media .tile-index{
  position:absolute;left:16px;top:16px;
  padding:4px 10px;border-radius:999px;
  background:rgba(12,59,52,.88);color:#fff;
  font-family:var(--num);font-size:12px;font-weight:600;letter-spacing:.04em;
}
.tile-body{padding:24px;}
.tile-body h3{font-size:19px;line-height:1.5;font-weight:600;color:var(--ink);margin:12px 0 10px;}
.tile-body p{font-size:14px;line-height:1.75;color:var(--ink-2);margin-bottom:18px;}
.tile-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--brand-mid);
}
.tile:hover .tile-arrow{color:var(--accent);}
.tile-arrow i{font-size:12px;transition:transform var(--ease);}
.tile:hover .tile-arrow i{transform:translateX(4px);}

/* ============ 刻度条 ============ */
.scale-block{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:36px;box-shadow:var(--shadow-sm);
}
.scale-row{display:grid;grid-template-columns:180px 1fr;gap:24px;align-items:center;padding:20px 0;border-bottom:1px dashed var(--line);}
.scale-row:last-child{border-bottom:0;}
.scale-label{font-size:15px;font-weight:600;color:var(--ink);}
.scale-label span{display:block;font-size:12px;font-weight:400;color:var(--ink-3);margin-top:4px;}
.scale-track{display:flex;align-items:center;gap:12px;}
.scale-bar{
  height:14px;border-radius:3px;background:linear-gradient(90deg,var(--brand-mid),var(--brand));
  flex:0 0 auto;
}
.scale-bar.warm{background:linear-gradient(90deg,var(--accent),var(--accent-deep));}
.scale-pct{font-family:var(--num);font-variant-numeric:tabular-nums;font-size:15px;font-weight:700;color:var(--brand);}
.scale-note{margin-top:24px;font-size:13px;color:var(--ink-3);line-height:1.8;padding-top:18px;border-top:1px solid var(--line);}

/* ============ 适用场景 ============ */
.scene-wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.scene-media{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md);}
.scene-media img{width:100%;aspect-ratio:4/3;}
.scene-list{display:flex;flex-direction:column;gap:18px;margin-top:28px;}
.scene-item{
  display:flex;gap:16px;padding:18px 20px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);transition:all var(--ease);
}
.scene-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:rgba(228,87,46,.35);}
.scene-item .si-icon{
  width:40px;height:40px;flex:0 0 40px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(20,104,83,.1);color:var(--brand-mid);font-size:16px;
}
.scene-item h3{font-size:16px;font-weight:600;margin-bottom:4px;}
.scene-item p{font-size:14px;color:var(--ink-2);line-height:1.7;}

/* ============ 流程 ============ */
.flow-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:20px;}
.flow-step{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:24px 20px;box-shadow:var(--shadow-sm);
  transition:all var(--ease);
}
.flow-step:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:rgba(228,87,46,.35);}
.flow-step .fs-num{
  font-family:var(--num);font-variant-numeric:tabular-nums;
  font-size:26px;font-weight:700;color:var(--accent);line-height:1;margin-bottom:14px;
}
.flow-step h3{font-size:16px;font-weight:600;margin-bottom:8px;}
.flow-step p{font-size:13px;color:var(--ink-2);line-height:1.7;}

/* ============ FAQ ============ */
.faq-wrap{max-width:840px;margin:0 auto;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  margin-bottom:14px;overflow:hidden;transition:all var(--ease);
}
.faq-item[open]{border-color:rgba(12,59,52,.35);box-shadow:var(--shadow-sm);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;gap:16px;
  padding:0 24px;min-height:56px;
  font-size:17px;font-weight:600;color:var(--ink);
  position:relative;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  background:transparent;border-radius:0 2px 2px 0;transition:background var(--ease);
}
.faq-item[open] summary::before{background:var(--accent);}
.faq-item summary .faq-ic{
  margin-left:auto;flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  color:var(--brand-mid);font-size:12px;transition:all var(--ease);
}
.faq-item[open] summary .faq-ic{background:var(--accent);border-color:var(--accent);color:#fff;transform:rotate(180deg);}
.faq-item summary:hover{color:var(--brand-mid);}
.faq-body{padding:0 24px 24px 24px;font-size:15px;line-height:1.8;color:var(--ink-2);}

/* ============ 转化表单 ============ */
.cta-band{
  background:var(--brand);
  background-image:
    linear-gradient(to right,rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:24px 24px;
  color:#fff;padding:88px 0;
}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.cta-info h2{font-size:30px;line-height:1.35;font-weight:700;margin-bottom:16px;}
.cta-info p{font-size:16px;line-height:1.85;color:rgba(255,255,255,.78);margin-bottom:28px;}
.cta-points{display:flex;flex-direction:column;gap:14px;}
.cta-points li{display:flex;gap:12px;font-size:15px;color:rgba(255,255,255,.85);}
.cta-points i{color:var(--accent);margin-top:5px;}
.cta-form-card{
  background:#fff;border-radius:var(--radius-lg);padding:32px;
  box-shadow:var(--shadow-md);color:var(--ink);
}
.form-row{margin-bottom:18px;}
.form-row label{display:block;font-size:14px;color:var(--ink-2);margin-bottom:8px;}
.form-row input,.form-row textarea{
  width:100%;height:46px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--radius-btn);
  background:#fff;transition:all var(--ease);
}
.form-row textarea{height:auto;min-height:120px;padding:12px 14px;line-height:1.7;resize:vertical;}
.form-row input:focus,.form-row textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(228,87,46,.18);
}
.form-hint{font-size:12px;color:var(--ink-3);margin-top:14px;line-height:1.7;}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-deep);color:#fff;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--accent);}
.footer-brand strong{display:block;font-size:16px;font-weight:700;color:#fff;}
.footer-brand .fb-sub{font-size:11px;letter-spacing:.14em;color:rgba(255,255,255,.55);}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.68);max-width:320px;}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:18px;}
.footer-links li{margin-bottom:12px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.7);border-bottom:1px solid transparent;}
.footer-links a:hover{color:#fff;border-bottom-color:var(--accent);}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.7);margin-bottom:12px;line-height:1.7;}
.footer-contact i{color:var(--accent);margin-top:5px;}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 26px;
  font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom a{color:rgba(255,255,255,.6);}
.footer-bottom a:hover{color:var(--accent);}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .container{max-width:960px;}
  .flow-grid{grid-template-columns:repeat(3,1fr);}
  .mega-panel{width:720px;}
}
@media (max-width:991.98px){
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .cat-hero h1{font-size:34px;}
  .hero-stats{grid-template-columns:repeat(2,1fr);}
  .hero-stats .hs{border-bottom:1px solid rgba(255,255,255,.12);}
  .hero-stats .hs:nth-child(2){border-right:0;}
  .metric-board{grid-template-columns:repeat(2,1fr);}
  .tile-grid{grid-template-columns:repeat(2,1fr);gap:24px;}
  .scene-wrap{grid-template-columns:1fr;gap:36px;}
  .cta-grid{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:64px 0;}
  .sec-title{font-size:26px;}
}
@media (max-width:767.98px){
  .container{padding:0 16px;}
  .header-inner{height:60px;gap:12px;}
  .brand-mark{width:36px;height:36px;flex:0 0 36px;font-size:14px;}
  .brand-text strong{font-size:15px;}
  .header-actions .btn-main{display:none;}
  .cat-hero{padding:40px 0 0;}
  .cat-hero h1{font-size:28px;line-height:1.3;}
  .cat-hero .lead{font-size:15px;}
  .hero-anchors{margin-bottom:32px;}
  .hero-stats{grid-template-columns:1fr;}
  .hero-stats .hs{border-right:0;}
  .metric-board{grid-template-columns:1fr;gap:16px;}
  .metric-card .m-val{font-size:36px;}
  .tile-grid{grid-template-columns:1fr;gap:20px;}
  .flow-grid{grid-template-columns:1fr;gap:14px;}
  .scale-block{padding:24px 20px;}
  .scale-row{grid-template-columns:1fr;gap:12px;}
  .section{padding:48px 0;}
  .section--tight{padding:40px 0;}
  .sec-title{font-size:22px;}
  .tile-body{padding:16px;}
  .cta-band{padding:56px 0;}
  .cta-form-card{padding:22px;}
  .cta-info h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .faq-item summary{padding:0 18px;font-size:16px;}
  .faq-body{padding:0 18px 20px 18px;}
  .btn-main,.btn-ghost{width:100%;}
}
@media (max-width:575.98px){
  body{font-size:15px;}
  .tile-media .tile-index{left:12px;top:12px;}
}

/* roulang page: category3 */
:root{
  --brand:#0C3B34;
  --brand-deep:#0A322C;
  --brand-mid:#146853;
  --accent:#E4572E;
  --accent-deep:#C94822;
  --accent-soft:#FDEBE3;
  --page:#F7F5F0;
  --card:#FFFFFF;
  --zebra:#FBFAF7;
  --ink:#14181A;
  --ink-2:#5A625E;
  --ink-3:#8A918D;
  --line:#E4E0D7;
  --r-card:10px;
  --r-btn:8px;
  --r-hero:14px;
  --sh-sm:0 1px 2px rgba(10,50,44,.06);
  --sh-md:0 8px 24px rgba(10,50,44,.08);
  --font:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  --font-num:'DIN Alternate','Barlow','Roboto Mono',ui-monospace,monospace;
  --bs-body-font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei',system-ui,sans-serif;
  --bs-link-color:#146853;
  --bs-link-hover-color:#E4572E;
  --bs-body-color:#14181A;
  --bs-border-color:#E4E0D7;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-mid);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--accent);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button,input,textarea,select{font:inherit;color:inherit;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(228,87,46,.25);border-radius:4px;}

.container{width:100%;max-width:1248px;margin:0 auto;padding-left:24px;padding-right:24px;}

.section{padding:88px 0;position:relative;}
.section-tight{padding:64px 0;}
.section-white{background:var(--card);}
.grid-bg-dark::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(to right,rgba(255,255,255,.06) 1px,transparent 1px),
                   linear-gradient(to bottom,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:24px 24px;
}
.grid-bg-light::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(to right,rgba(228,224,215,.75) 1px,transparent 1px),
                   linear-gradient(to bottom,rgba(228,224,215,.75) 1px,transparent 1px);
  background-size:24px 24px;
}
.section > .container{position:relative;z-index:1;}

/* ---------- 板块标题 ---------- */
.sec-head{margin-bottom:32px;max-width:840px;}
.sec-num{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-num);font-size:13px;font-weight:700;
  letter-spacing:.1em;color:var(--accent);font-variant-numeric:tabular-nums;
}
.sec-num::before{content:"";width:24px;height:2px;background:var(--accent);display:block;}
.sec-title{font-size:30px;line-height:1.35;font-weight:700;color:var(--brand);margin-top:12px;letter-spacing:-.01em;}
.sec-sub{font-size:15px;line-height:1.85;color:var(--ink-2);margin-top:14px;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--brand);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.nav-bar{
  height:72px;display:flex;align-items:center;gap:24px;
}
.brand{display:flex;align-items:center;gap:12px;color:#fff;text-decoration:none;flex-shrink:0;}
.brand:hover{color:#fff;}
.brand-mark{
  width:42px;height:42px;border-radius:8px;background:var(--accent);
  display:grid;place-items:center;color:#fff;font-family:var(--font-num);
  font-weight:700;font-size:16px;letter-spacing:.02em;flex-shrink:0;
}
.brand-text strong{display:block;font-size:16.5px;font-weight:700;color:#fff;line-height:1.3;letter-spacing:.01em;}
.brand-text span{display:block;font-size:11px;color:rgba(255,255,255,.6);letter-spacing:.08em;line-height:1.5;}

.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:72px;
  padding:0 15px;font-size:15px;font-weight:500;
  color:rgba(255,255,255,.82);text-decoration:none;transition:.18s ease;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:15px;right:15px;bottom:0;height:3px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.05);}
.nav-link:hover::after{transform:scaleX(1);opacity:.6;}
.nav-link.is-active{color:#fff;background:rgba(255,255,255,.07);}
.nav-link.is-active::after{transform:scaleX(1);opacity:1;}

.mega-wrap{position:relative;height:72px;display:flex;align-items:center;margin-left:10px;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;cursor:pointer;
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.18);
  color:#fff;border-radius:var(--r-btn);padding:9px 16px;font-size:14px;font-weight:500;
  transition:.18s ease;
}
.mega-trigger:hover{background:rgba(255,255,255,.16);}
.mega-trigger .fa-chevron-down{font-size:11px;transition:transform .18s ease;opacity:.8;}
.mega-wrap.is-open .mega-trigger{background:var(--accent);border-color:var(--accent);}
.mega-wrap.is-open .fa-chevron-down{transform:rotate(180deg);}
.mega-panel{
  position:absolute;right:0;top:100%;width:820px;
  background:#fff;border-top:3px solid var(--accent);
  border-radius:0 0 12px 12px;box-shadow:var(--sh-md);
  padding:26px;display:grid;grid-template-columns:1fr 1.15fr 1fr;gap:26px;
  opacity:0;visibility:hidden;transform:translateY(6px);transition:.18s ease;
}
.mega-wrap:hover .mega-panel,
.mega-wrap.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-title{font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--ink-3);margin-bottom:14px;text-transform:uppercase;}
.mega-list li + li{margin-top:4px;}
.mega-cat{
  display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:8px;
  color:var(--ink);font-size:14.5px;transition:.18s ease;
}
.mega-cat:hover{background:var(--zebra);color:var(--brand-mid);}
.mega-cat i{color:var(--brand-mid);font-size:11px;}
.mega-cat .cnt{margin-left:auto;font-family:var(--font-num);font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums;}
.mega-post{display:block;padding:9px 10px;border-radius:8px;transition:.18s ease;}
.mega-post:hover{background:var(--zebra);}
.mega-post b{display:block;font-size:14.5px;font-weight:500;color:var(--ink);line-height:1.55;}
.mega-post:hover b{color:var(--brand-mid);}
.mega-post time{display:block;font-family:var(--font-num);font-size:12.5px;color:var(--ink-3);margin-top:4px;font-variant-numeric:tabular-nums;}
.mega-card{
  display:block;border:1px solid var(--line);border-radius:10px;overflow:hidden;
  background:var(--card);transition:.18s ease;
}
.mega-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:rgba(228,87,46,.35);}
.mega-card img{aspect-ratio:16/10;width:100%;object-fit:cover;}
.mega-card .mc-body{padding:14px 16px 16px;}
.mega-card strong{display:block;font-size:14.5px;color:var(--brand);line-height:1.5;}
.mega-card span{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--accent);margin-top:8px;}

.nav-toggle{
  display:none;margin-left:auto;background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.2);color:#fff;border-radius:8px;
  width:42px;height:42px;align-items:center;justify-content:center;cursor:pointer;transition:.18s ease;
}
.nav-toggle:hover{background:rgba(255,255,255,.18);}

.drawer{background:var(--brand);color:#fff;width:340px;border:0;}
.drawer .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.12);padding:18px 20px;display:flex;align-items:center;gap:12px;}
.drawer .offcanvas-header strong{color:#fff;font-size:16px;}
.drawer-close{
  margin-left:auto;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);
  color:#fff;width:36px;height:36px;border-radius:8px;cursor:pointer;transition:.18s ease;
}
.drawer-close:hover{background:var(--accent);border-color:var(--accent);}
.drawer .offcanvas-body{padding:16px 12px 32px;}
.drawer-link{
  display:block;padding:14px 12px;border-radius:8px;color:rgba(255,255,255,.86);
  font-size:15.5px;font-weight:500;border-bottom:1px solid rgba(255,255,255,.08);
}
.drawer-link:hover{background:rgba(255,255,255,.07);color:#fff;}
.drawer-link.is-active{color:#fff;background:rgba(228,87,46,.18);}
.drawer-toggle{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  background:transparent;border:0;border-bottom:1px solid rgba(255,255,255,.08);
  color:rgba(255,255,255,.86);padding:14px 12px;font-size:15.5px;cursor:pointer;text-align:left;
}
.drawer-toggle .pm{font-family:var(--font-num);font-size:18px;color:var(--accent);transition:transform .18s ease;}
.drawer-toggle[aria-expanded="true"] .pm{transform:rotate(45deg);}
.drawer-more{padding:8px 12px 4px;}
.drawer-more a{display:block;color:rgba(255,255,255,.72);font-size:14.5px;padding:9px 0;}
.drawer-more a:hover{color:var(--accent);}

/* ---------- 按钮 ---------- */
.btn-main,.btn-ghost,.btn-text{display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:.18s ease;}
.btn-main{
  background:var(--accent);color:#fff;border:none;border-radius:var(--r-btn);
  padding:12px 24px;font-size:15px;font-weight:600;line-height:1.4;
}
.btn-main:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md);}
.btn-main:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;color:var(--brand-mid);border:1.5px solid var(--brand-mid);
  border-radius:var(--r-btn);padding:11px 22px;font-size:15px;font-weight:600;line-height:1.4;
}
.btn-ghost:hover{background:rgba(20,104,83,.08);color:var(--brand-mid);}
.btn-text{color:var(--brand-mid);font-weight:600;font-size:15px;border-bottom:1px solid rgba(20,104,83,.4);padding-bottom:2px;}
.btn-text:hover{color:var(--accent);border-color:var(--accent);}

/* ---------- 分类头 ---------- */
.cat-hero{
  position:relative;background:var(--brand);color:#fff;
  padding:52px 0 56px;overflow:hidden;
}
.cat-hero .crumb{font-size:13px;color:rgba(255,255,255,.6);margin-bottom:22px;display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.cat-hero .crumb a{color:rgba(255,255,255,.78);}
.cat-hero .crumb a:hover{color:var(--accent);}
.cat-hero .crumb .sep{color:rgba(255,255,255,.32);}
.cat-hero .crumb .cur{color:rgba(255,255,255,.55);}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.04em;
  background:var(--accent-soft);color:var(--accent-deep);
}
.tag.tag-dark{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.2);}
.tag.tag-green{background:rgba(20,104,83,.1);color:var(--brand-mid);}
.cat-hero h1{
  font-size:42px;line-height:1.25;font-weight:700;color:#fff;
  margin:20px 0 0;letter-spacing:-.01em;
}
.cat-hero .hero-lead{
  font-size:16.5px;line-height:1.85;color:rgba(255,255,255,.78);
  max-width:720px;margin-top:18px;
}
.anchor-nav{display:flex;flex-wrap:wrap;gap:0;margin-top:32px;border-top:1px solid rgba(255,255,255,.14);padding-top:22px;}
.anchor-nav a{
  display:inline-flex;align-items:center;gap:8px;
  color:rgba(255,255,255,.82);font-size:14.5px;font-weight:500;
  padding-right:26px;margin-right:26px;border-right:1px solid rgba(255,255,255,.16);
  position:relative;
}
.anchor-nav a:last-child{border-right:0;margin-right:0;padding-right:0;}
.anchor-nav a::before{content:"";width:8px;height:8px;border:1.5px solid var(--accent);display:block;transform:rotate(45deg);}
.anchor-nav a:hover{color:#fff;}

/* ---------- 筛选条 ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  margin-bottom:22px;
}
.bar-note{
  font-size:13.5px;color:var(--ink-3);
  display:inline-flex;align-items:center;gap:8px;
}
.bar-note b{font-family:var(--font-num);font-size:16px;color:var(--brand);font-variant-numeric:tabular-nums;}
.filter-chip{
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  border-radius:999px;padding:7px 18px;font-size:14px;font-weight:500;cursor:pointer;transition:.18s ease;
}
.filter-chip:hover{border-color:rgba(228,87,46,.5);color:var(--accent);}
.filter-chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff;}

/* ---------- 表格 ---------- */
.table-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-sm);overflow:hidden;
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
.data-table{width:100%;min-width:960px;border-collapse:collapse;font-size:15px;}
.data-table thead th{
  background:var(--brand);color:#fff;font-size:14px;font-weight:600;
  padding:15px 16px;text-align:left;white-space:nowrap;letter-spacing:.02em;
}
.data-table tbody td{
  padding:15px 16px;border-top:1px solid var(--line);
  color:var(--ink-2);vertical-align:top;line-height:1.75;
}
.data-table tbody tr:nth-child(even){background:var(--zebra);}
.data-table tbody tr:hover{background:#F4F1EA;}
.data-table tbody td:first-child{color:var(--ink-3);}
.data-table .col-id{
  text-align:center;font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-weight:700;color:var(--brand-mid)!important;width:64px;
}
.data-table .tnum{font-family:var(--font-num);font-variant-numeric:tabular-nums;}
.data-table .strong{color:var(--ink);font-weight:600;}
.table-tip{font-size:13px;color:var(--ink-3);margin-top:14px;display:flex;align-items:flex-start;gap:8px;}
.table-tip i{color:var(--accent);margin-top:4px;}

/* ---------- 清单卡片 ---------- */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.check-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-sm);transition:.18s ease;overflow:hidden;
}
.check-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:rgba(228,87,46,.35);}
.check-card .cc-body{padding:26px 24px;}
.check-card h3{font-size:19px;line-height:1.5;font-weight:700;color:var(--brand);display:flex;align-items:center;gap:10px;}
.check-card h3 i{color:var(--accent);font-size:16px;}
.check-card p{font-size:14.5px;line-height:1.85;color:var(--ink-2);margin-top:12px;}
.check-card.has-img{display:grid;grid-template-columns:210px 1fr;}
.check-card.has-img img{width:100%;height:100%;object-fit:cover;}
.check-card.has-img .cc-body{padding:24px;}
.pill-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(20,104,83,.08);color:var(--brand-mid);
  border-radius:999px;padding:4px 12px;font-size:12.5px;font-weight:500;
}
.pill.pill-accent{background:var(--accent-soft);color:var(--accent-deep);}

/* ---------- 双栏对照 ---------- */
.compare{
  display:grid;grid-template-columns:1fr 1fr;gap:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-sm);margin-top:32px;
}
.compare-col{padding:26px 24px;}
.compare-col + .compare-col{border-left:1px dashed var(--line);}
.compare-col h3{font-size:16px;font-weight:700;display:flex;align-items:center;gap:8px;}
.compare-col.before h3{color:var(--ink-2);}
.compare-col.after h3{color:var(--accent-deep);}
.compare-col ul{margin-top:16px;}
.compare-col li{
  position:relative;padding-left:18px;font-size:14.5px;line-height:1.85;color:var(--ink-2);
  padding-bottom:10px;
}
.compare-col li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:2px;background:var(--ink-3);}
.compare-col.after li::before{background:var(--accent);}
.compare-result{
  margin-top:16px;padding-top:16px;border-top:1px solid var(--line);
  font-size:14px;color:var(--ink-3);display:flex;align-items:baseline;gap:8px;
}
.compare-result b{font-family:var(--font-num);font-size:28px;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1;}

/* ---------- FAQ ---------- */
.faq-list{max-width:840px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:12px;overflow:hidden;transition:.18s ease;
}
.faq-item summary{
  position:relative;display:flex;align-items:center;min-height:56px;
  padding:15px 60px 15px 20px;font-size:17px;font-weight:600;color:var(--brand);
  cursor:pointer;list-style:none;border-left:3px solid transparent;transition:.18s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:50%;border:1.5px solid var(--line);
  display:grid;place-items:center;font-family:var(--font-num);font-size:15px;
  color:var(--brand-mid);transition:.18s ease;
}
.faq-item summary:hover{background:#FCFBF8;}
.faq-item[open]{border-color:rgba(228,87,46,.35);box-shadow:var(--sh-md);}
.faq-item[open] summary{border-left-color:var(--accent);}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg);border-color:var(--accent);color:var(--accent);}
.faq-body{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--ink-2);}
.faq-body p + p{margin-top:10px;}

/* ---------- CTA 表单 ---------- */
.cta-band{
  position:relative;background:var(--brand);color:#fff;padding:88px 0;overflow:hidden;
}
.cta-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:56px;align-items:start;}
.sec-num.on-dark{color:#F09A78;}
.sec-num.on-dark::before{background:#F09A78;}
.cta-band h2{font-size:30px;line-height:1.35;font-weight:700;color:#fff;margin-top:12px;}
.cta-band .cta-desc{font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.76);margin-top:16px;max-width:520px;}
.cta-points{margin-top:28px;border-top:1px solid rgba(255,255,255,.14);padding-top:22px;}
.cta-points li{
  display:flex;align-items:flex-start;gap:12px;font-size:14.5px;
  color:rgba(255,255,255,.82);padding:8px 0;
}
.cta-points i{color:var(--accent);margin-top:5px;font-size:14px;}
.cta-card{
  background:#fff;border-radius:var(--r-hero);padding:32px;box-shadow:var(--sh-md);
}
.form-row{margin-bottom:18px;}
.form-label{display:block;font-size:14px;color:var(--ink-2);margin-bottom:8px;font-weight:500;}
.form-control{
  width:100%;height:46px;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:0 14px;font-size:15px;background:#fff;color:var(--ink);transition:.18s ease;
}
textarea.form-control{height:auto;min-height:120px;padding:12px 14px;line-height:1.75;resize:vertical;}
.form-control::placeholder{color:#A9AFAB;}
.form-control:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(228,87,46,.18);outline:none;}
.form-control:hover{border-color:#CFC9BB;}
.cta-card .btn-main{width:100%;margin-top:6px;}
.form-tip{
  display:none;margin-top:14px;font-size:14px;color:var(--brand-mid);
  background:rgba(20,104,83,.07);border-radius:8px;padding:10px 14px;
}
.form-tip.is-show{display:block;}
.form-note{font-size:12.5px;color:var(--ink-3);margin-top:12px;line-height:1.7;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand);color:#fff;padding:64px 0 0;border-top:1px solid rgba(255,255,255,.1);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:12px;}
.fb-sub{display:block;font-size:11px;color:rgba(255,255,255,.55);letter-spacing:.08em;}
.footer-brand strong{font-size:16.5px;color:#fff;display:block;line-height:1.35;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);margin-top:18px;max-width:340px;}
.footer-title{font-size:14px;font-weight:700;color:#fff;letter-spacing:.06em;margin-bottom:18px;}
.footer-links li + li{margin-top:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.7);}
.footer-links a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px;}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.7);line-height:1.75;}
.footer-contact li + li{margin-top:12px;}
.footer-contact i{color:var(--accent);margin-top:5px;font-size:14px;flex-shrink:0;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 28px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.6);}
.footer-bottom a{color:rgba(255,255,255,.7);}
.footer-bottom a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .main-nav,.mega-wrap{display:none;}
  .nav-toggle{display:inline-flex;}
  .brand{margin-right:auto;}
}
@media (max-width:991.98px){
  .section{padding:72px 0;}
  .cta-band{padding:72px 0;}
  .cta-grid{grid-template-columns:1fr;gap:36px;}
  .cat-hero h1{font-size:34px;}
  .sec-title{font-size:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .check-grid{grid-template-columns:1fr;}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px;}
  .nav-bar{height:60px;}
  .brand-mark{width:38px;height:38px;font-size:14px;}
  .brand-text strong{font-size:15px;}
  .cat-hero{padding:38px 0 42px;}
  .cat-hero h1{font-size:28px;line-height:1.3;}
  .cat-hero .hero-lead{font-size:15px;}
  .section{padding:48px 0;}
  .cta-band{padding:52px 0;}
  .sec-title{font-size:22px;}
  .sec-head{margin-bottom:24px;}
  .compare{grid-template-columns:1fr;}
  .compare-col + .compare-col{border-left:0;border-top:1px dashed var(--line);}
  .check-card.has-img{grid-template-columns:1fr;}
  .check-card.has-img img{height:180px;}
  .check-card.has-img .cc-body{padding:22px;}
  .cta-card{padding:22px;}
  .cta-band h2{font-size:22px;}
  .faq-item summary{font-size:16px;padding:14px 54px 14px 16px;}
  .anchor-nav a{padding-right:16px;margin-right:16px;font-size:14px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;margin-top:40px;}
  .btn-main,.btn-ghost{width:100%;}
  .filter-bar{gap:8px;}
}
@media (max-width:575.98px){
  body{font-size:15px;}
  .cat-hero h1{font-size:26px;}
  .data-table{min-width:820px;}
  .compare-result b{font-size:24px;}
}

/* roulang page: category4 */
/* ============ 设计变量 ============ */
:root{
  --brand:#0C3B34;
  --brand-deep:#0A322C;
  --brand-mid:#146853;
  --accent:#E4572E;
  --accent-deep:#C94822;
  --accent-soft:#FDEBE3;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --zebra:#FBFAF7;
  --ink:#14181A;
  --ink-2:#5A625E;
  --ink-3:#8A918D;
  --line:#E4E0D7;
  --r-card:10px;
  --r-btn:8px;
  --r-img:14px;
  --sh-sm:0 1px 2px rgba(10,50,44,.06);
  --sh-md:0 8px 24px rgba(10,50,44,.08);
  --t:.18s ease;
  --sans:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei',system-ui,-apple-system,'Segoe UI',Arial,sans-serif;
  --num:'DIN Alternate','Barlow','Roboto Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
}
/* ============ 基础重置 ============ */
*,*::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:var(--sans);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-mid);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--accent);}
h1,h2,h3,h4,p,ul,ol,dl,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(228,87,46,.25);}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:576px){.container{max-width:1200px;}}
@media (min-width:768px){.container{max-width:1200px;}}
@media (min-width:992px){.container{max-width:1200px;}}
@media (min-width:1200px){.container{max-width:1200px;}}
.num{font-family:var(--num);font-variant-numeric:tabular-nums;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--brand);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:12px;color:#fff;flex:0 0 auto;}
.brand:hover{color:#fff;}
.brand-mark{
  width:40px;height:40px;border-radius:8px;background:var(--accent);color:#fff;
  font-family:var(--num);font-weight:700;font-size:18px;letter-spacing:.5px;
  display:grid;place-items:center;flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:16px;font-weight:600;letter-spacing:.2px;}
.brand-text span{font-size:11px;color:rgba(255,255,255,.62);letter-spacing:.16em;}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-link{
  position:relative;display:flex;align-items:center;height:72px;padding:0 12px;
  color:rgba(255,255,255,.82);font-size:15px;font-weight:500;white-space:nowrap;
  transition:color var(--t),background var(--t);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:3px;background:var(--accent);
  opacity:0;transform:scaleX(.6);transition:opacity var(--t),transform var(--t);
}
.nav-link:hover{color:#fff;}
.nav-link:hover::after{opacity:.6;transform:scaleX(1);}
.nav-link.is-active{color:#fff;background:rgba(255,255,255,.07);}
.nav-link.is-active::after{opacity:1;transform:scaleX(1);}
.header-side{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.mega-trigger-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  color:#fff;font-size:14px;font-weight:500;padding:8px 14px;border-radius:var(--r-btn);
  transition:background var(--t),border-color var(--t);
}
.mega-trigger:hover{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.34);}
.mega-trigger i{font-size:12px;transition:transform var(--t);}
.mega-trigger-wrap:hover .mega-trigger i,
.mega-trigger[aria-expanded="true"] i{transform:rotate(180deg);}
.mega-panel{
  position:absolute;right:0;top:100%;width:800px;max-width:min(800px,calc(100vw - 48px));
  background:var(--surface);border-top:3px solid var(--accent);
  border-radius:0 0 12px 12px;box-shadow:var(--sh-md);padding:24px;
  display:grid;grid-template-columns:1.05fr 1.25fr 1fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity var(--t),transform var(--t),visibility var(--t);z-index:1050;
}
.mega-panel::before{content:"";position:absolute;top:-14px;left:0;right:0;height:14px;}
.mega-trigger-wrap:hover .mega-panel,
.mega-trigger-wrap:focus-within .mega-panel,
.mega-panel.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.mega-title{font-size:12px;font-weight:600;letter-spacing:.12em;color:var(--ink-3);margin-bottom:12px;}
.mega-list li+li{margin-top:6px;}
.mega-list a{
  display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ink);
  padding:8px 10px;border-radius:8px;transition:background var(--t),color var(--t);
}
.mega-list a:hover{background:var(--accent-soft);color:var(--brand);}
.mega-ico{width:12px;height:12px;border-radius:3px;background:var(--brand-mid);flex:0 0 auto;}
.mega-count{margin-left:auto;font-family:var(--num);font-size:12px;color:var(--ink-3);font-variant-numeric:tabular-nums;}
.mega-news a{display:block;padding:9px 0;border-bottom:1px dashed var(--line);}
.mega-news a:last-child{border-bottom:0;padding-bottom:0;}
.mega-news .t{font-size:14px;line-height:1.5;color:var(--ink);transition:color var(--t);}
.mega-news a:hover .t{color:var(--brand-mid);}
.mega-news .d{font-family:var(--num);font-size:12px;color:var(--ink-3);margin-top:3px;}
.mega-card{display:block;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--zebra);}
.mega-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.mega-card .mc-body{padding:12px 14px;}
.mega-card .mc-t{font-size:14px;font-weight:600;color:var(--ink);line-height:1.5;}
.mega-card .mc-a{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--brand-mid);margin-top:6px;}
.menu-btn{
  display:none;width:42px;height:42px;border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.08);color:#fff;font-size:16px;
  transition:background var(--t);
}
.menu-btn:hover{background:rgba(255,255,255,.18);}
/* 移动端抽屉 */
.mnav{background:var(--brand);color:#fff;width:320px;max-width:86vw;border:0;}
.mnav .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.12);padding:16px 20px;}
.mnav-title{font-size:15px;font-weight:600;color:#fff;}
.mnav-close{
  width:36px;height:36px;border-radius:var(--r-btn);
  background:transparent;border:1px solid rgba(255,255,255,.24);color:#fff;
}
.mnav .offcanvas-body{padding:16px 20px 32px;}
.mnav-link{
  display:block;color:rgba(255,255,255,.86);font-size:15px;padding:12px 4px;
  border-bottom:1px solid rgba(255,255,255,.08);transition:color var(--t),background var(--t);
}
.mnav-link:hover{color:#fff;}
.mnav-link.is-active{color:#fff;background:rgba(255,255,255,.06);border-left:3px solid var(--accent);padding-left:12px;}
.mfold{margin-top:12px;border-top:1px solid rgba(255,255,255,.12);}
.mfold summary{
  list-style:none;cursor:pointer;color:#fff;font-size:15px;padding:14px 4px;
  display:flex;align-items:center;justify-content:space-between;
}
.mfold summary::-webkit-details-marker{display:none;}
.mfold summary::after{content:"+";font-family:var(--num);font-size:18px;color:var(--accent);}
.mfold[open] summary::after{content:"−";}
.mfold-body a{
  display:block;color:rgba(255,255,255,.78);font-size:14px;padding:10px 12px;border-radius:8px;
  background:rgba(255,255,255,.05);margin-bottom:8px;
}
.mfold-body a:hover{color:#fff;background:rgba(255,255,255,.1);}

/* ============ 首屏 ============ */
.page-hero{position:relative;padding:56px 0 64px;background:var(--bg);overflow:hidden;}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(to right,rgba(228,224,215,.8) 1px,transparent 1px),
                   linear-gradient(to bottom,rgba(228,224,215,.8) 1px,transparent 1px);
  background-size:24px 24px;
}
.page-hero>.container{position:relative;z-index:1;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:24px;}
.crumb a{color:var(--ink-2);}
.crumb a:hover{color:var(--accent);}
.crumb .sep{color:#C9C3B6;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.04em;
  color:var(--brand);background:rgba(20,104,83,.1);padding:5px 12px;border-radius:999px;margin-bottom:16px;
}
.hero-title{font-size:42px;line-height:1.25;font-weight:700;letter-spacing:-.5px;color:var(--ink);margin-bottom:16px;}
.hero-lead{font-size:16px;line-height:1.85;color:var(--ink-2);max-width:560px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:16px;margin-top:28px;}
.hero-figure{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-md);background:var(--surface);}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.stat-band{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:48px;}
.stat-item{
  background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--accent);
  border-radius:var(--r-card);padding:18px 20px;box-shadow:var(--sh-sm);
}
.stat-num{font-family:var(--num);font-variant-numeric:tabular-nums;font-size:32px;font-weight:700;line-height:1.1;color:var(--brand);}
.stat-label{font-size:13px;color:var(--ink-3);margin-top:6px;line-height:1.6;}

/* ============ 按钮 ============ */
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--accent);border:1px solid var(--accent);color:#fff;
  padding:12px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  transition:background var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-accent:hover{background:var(--accent-deep);border-color:var(--accent-deep);color:#fff;transform:translateY(-1px);box-shadow:0 6px 16px rgba(228,87,46,.24);}
.btn-accent:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;border:1.5px solid var(--brand);color:var(--brand);
  padding:11px 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  transition:background var(--t),color var(--t);
}
.btn-ghost:hover{background:rgba(12,59,52,.07);color:var(--brand);}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand-mid);font-weight:600;border-bottom:1px solid rgba(20,104,83,.4);padding-bottom:2px;transition:color var(--t),border-color var(--t);}
.btn-text:hover{color:var(--accent);border-color:rgba(228,87,46,.5);}

/* ============ 板块通用 ============ */
.section{padding:88px 0;}
.section-alt{background:var(--surface);}
.section-head{max-width:760px;margin-bottom:40px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.14em;color:var(--brand-mid);margin-bottom:12px;}
.eyebrow::before{content:"";display:inline-block;width:18px;height:2px;background:var(--accent);}
.section-title{font-size:30px;line-height:1.35;font-weight:700;letter-spacing:-.3px;color:var(--ink);}
.section-sub{font-size:15px;color:var(--ink-2);margin-top:12px;line-height:1.85;}

/* ============ 时间轴 ============ */
.timeline{position:relative;padding-left:6px;}
.timeline::before{content:"";position:absolute;left:19px;top:14px;bottom:26px;width:2px;background:rgba(20,104,83,.35);}
.tl-item{position:relative;padding-left:56px;padding-bottom:32px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:12px;top:6px;width:16px;height:16px;border-radius:50%;
  background:var(--bg);border:3px solid var(--brand-mid);z-index:1;
  transition:background var(--t),border-color var(--t),box-shadow var(--t);
}
.tl-item.is-current::before{background:var(--accent);border-color:var(--accent);box-shadow:0 0 0 5px rgba(228,87,46,.15);}
.tl-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-sm);
  transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.tl-card:hover{box-shadow:var(--sh-md);transform:translateY(-2px);border-color:rgba(228,87,46,.35);}
.tl-num{font-family:var(--num);font-variant-numeric:tabular-nums;font-size:14px;font-weight:700;letter-spacing:.08em;color:var(--accent);}
.tl-title{font-size:19px;line-height:1.5;font-weight:600;color:var(--ink);margin:6px 0 10px;}
.tl-text{font-size:15px;color:var(--ink-2);line-height:1.85;}
.tl-points{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tl-points li{font-size:13px;color:var(--brand);background:rgba(20,104,83,.08);border-radius:999px;padding:4px 12px;line-height:1.6;}

/* ============ 侧栏 ============ */
.aside-sticky{position:sticky;top:96px;}
.aside-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-sm);}
.aside-card+.aside-card{margin-top:20px;}
.aside-title{font-size:16px;font-weight:600;color:var(--ink);padding-bottom:12px;border-bottom:1px solid var(--line);margin-bottom:14px;}
.aside-list li{display:flex;gap:10px;padding:9px 0;border-bottom:1px dashed var(--line);font-size:14px;line-height:1.75;color:var(--ink-2);}
.aside-list li:last-child{border-bottom:0;padding-bottom:0;}
.aside-list .idx{font-family:var(--num);font-variant-numeric:tabular-nums;font-size:13px;font-weight:700;color:var(--brand-mid);flex:0 0 auto;}
.aside-note{margin-top:16px;font-size:13px;color:var(--ink-3);line-height:1.75;padding-top:14px;border-top:1px solid var(--line);}

/* ============ 场景卡 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.scene-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-sm);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:rgba(228,87,46,.35);}
.scene-ico{
  width:40px;height:40px;border-radius:10px;background:rgba(20,104,83,.08);
  color:var(--brand-mid);display:grid;place-items:center;font-size:18px;margin-bottom:16px;
}
.scene-title{font-size:17px;font-weight:600;color:var(--ink);margin-bottom:10px;}
.scene-text{font-size:14px;color:var(--ink-2);line-height:1.8;}
.scene-list{margin-top:14px;}
.scene-list li{position:relative;padding-left:16px;font-size:13px;color:var(--ink-2);line-height:1.75;margin-top:6px;}
.scene-list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:2px;background:var(--accent);}

/* ============ 深色板块 ============ */
.section-dark{position:relative;overflow:hidden;background:var(--brand);color:#fff;padding:88px 0;}
.section-dark::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(to right,rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(to bottom,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:24px 24px;
}
.section-dark>.container{position:relative;z-index:1;}
.section-dark .section-title{color:#fff;}
.section-dark .section-sub{color:rgba(255,255,255,.72);}
.section-dark .eyebrow{color:rgba(255,255,255,.72);}
.section-dark .eyebrow::before{background:var(--accent);}
.dark-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.dark-item{
  border:1px solid rgba(255,255,255,.16);border-radius:var(--r-card);padding:22px;
  background:rgba(255,255,255,.04);transition:background var(--t),border-color var(--t);
}
.dark-item:hover{background:rgba(255,255,255,.08);border-color:rgba(228,87,46,.5);}
.dark-item .n{font-family:var(--num);font-variant-numeric:tabular-nums;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--accent);}
.dark-item h3{font-size:17px;font-weight:600;color:#fff;margin:8px 0;}
.dark-item p{font-size:14px;color:rgba(255,255,255,.74);line-height:1.8;}

/* ============ FAQ ============ */
.faq-wrap{max-width:840px;margin:0 auto;}
.faq-item{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);margin-bottom:12px;overflow:hidden;
  transition:border-color var(--t),box-shadow var(--t);
}
.faq-item[open]{border-color:rgba(228,87,46,.45);box-shadow:var(--sh-sm);}
.faq-item[open]::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:12px 20px;font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  width:24px;height:24px;border-radius:50%;border:1.5px solid var(--brand-mid);color:var(--brand-mid);
  display:grid;place-items:center;font-size:14px;line-height:1;flex:0 0 auto;
  transition:transform var(--t),border-color var(--t),color var(--t);
}
.faq-icon::before{content:"+";}
.faq-item[open] .faq-icon{transform:rotate(180deg);border-color:var(--accent);color:var(--accent);}
.faq-item[open] .faq-icon::before{content:"−";}
.faq-body{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--ink-2);}

/* ============ 转化表单 ============ */
.cta-band{position:relative;overflow:hidden;background:var(--brand);color:#fff;padding:88px 0;}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(to right,rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(to bottom,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:24px 24px;
}
.cta-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;}
.cta-info h2{font-size:30px;line-height:1.35;font-weight:700;color:#fff;}
.cta-info p{margin-top:16px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.76);max-width:480px;}
.cta-meta{margin-top:28px;}
.cta-meta li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.8);line-height:1.7;margin-bottom:12px;}
.cta-meta i{color:var(--accent);margin-top:5px;flex:0 0 auto;}
.form-card{background:var(--surface);border-radius:var(--r-card);padding:32px;box-shadow:var(--sh-md);color:var(--ink);}
.form-card h3{font-size:19px;font-weight:600;margin-bottom:6px;}
.form-card .form-intro{font-size:14px;color:var(--ink-3);margin-bottom:22px;line-height:1.8;}
.form-field{margin-bottom:18px;}
.form-field label{display:block;font-size:14px;color:var(--ink-2);margin-bottom:8px;}
.form-field input,.form-field textarea{
  width:100%;height:46px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--surface);font-size:15px;color:var(--ink);
  transition:border-color var(--t),box-shadow var(--t);
}
.form-field textarea{height:auto;min-height:120px;padding:12px 14px;line-height:1.7;resize:vertical;}
.form-field input:focus,.form-field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(228,87,46,.18);}
.form-submit{
  width:100%;height:48px;background:var(--accent);border:1px solid var(--accent);color:#fff;
  border-radius:var(--r-btn);font-size:16px;font-weight:600;
  transition:background var(--t),border-color var(--t),transform var(--t);
}
.form-submit:hover{background:var(--accent-deep);border-color:var(--accent-deep);transform:translateY(-1px);}
.form-tip{margin-top:12px;font-size:13px;color:var(--ink-3);line-height:1.7;}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand);color:rgba(255,255,255,.82);padding:64px 0 24px;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand-mark{width:38px;height:38px;font-size:17px;}
.footer-brand strong{display:block;color:#fff;font-size:16px;font-weight:600;line-height:1.3;}
.fb-sub{font-size:11px;color:rgba(255,255,255,.55);letter-spacing:.16em;}
.footer-desc{font-size:13px;color:rgba(255,255,255,.68);line-height:1.8;max-width:330px;}
.footer-title{color:#fff;font-size:14px;font-weight:600;margin-bottom:16px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:rgba(255,255,255,.72);font-size:14px;}
.footer-links a:hover{color:#fff;border-bottom:1px solid var(--accent);}
.footer-contact li{display:flex;gap:10px;margin-bottom:12px;font-size:13px;color:rgba(255,255,255,.72);line-height:1.7;}
.footer-contact i{color:var(--accent);margin-top:5px;flex:0 0 auto;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom a{color:rgba(255,255,255,.6);}
.footer-bottom a:hover{color:var(--accent);}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .nav-link{padding:0 9px;font-size:14px;}
  .nav-link::after{left:9px;right:9px;}
}
@media (max-width:991px){
  .main-nav{display:none;}
  .mega-trigger-wrap{display:none;}
  .menu-btn{display:grid;place-items:center;}
  .hero-title{font-size:34px;}
  .section,.section-dark,.cta-band{padding:64px 0;}
  .section-title,.cta-info h2{font-size:26px;}
  .stat-band{grid-template-columns:repeat(2,1fr);}
  .scene-grid{grid-template-columns:repeat(2,1fr);}
  .dark-grid{grid-template-columns:1fr;}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .aside-sticky{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .header-inner{height:60px;}
  .brand-mark{width:36px;height:36px;font-size:16px;}
  .brand-text strong{font-size:15px;}
  .page-hero{padding:36px 0 48px;}
  .hero-title{font-size:28px;line-height:1.3;}
  .hero-lead{font-size:15px;}
  .hero-cta{gap:12px;}
  .hero-cta .btn-accent,.hero-cta .btn-ghost{width:100%;}
  .section,.section-dark,.cta-band{padding:48px 0;}
  .section-title,.cta-info h2{font-size:22px;}
  .stat-band{grid-template-columns:1fr;margin-top:32px;}
  .scene-grid{grid-template-columns:1fr;}
  .timeline::before{left:15px;}
  .tl-item{padding-left:44px;padding-bottom:24px;}
  .tl-item::before{left:8px;width:15px;height:15px;}
  .form-card{padding:20px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:575px){
  body{font-size:15px;}
  .tl-card,.scene-card,.aside-card{padding:18px;}
  .stat-num{font-size:28px;}
}