/* roulang page: index */
:root{
  --brand-900:#0A3830;
  --brand-700:#115B4C;
  --brand-500:#1E8A70;
  --brand-300:#6FC7AE;
  --brand-100:#DFF3EC;
  --accent-500:#C6F24E;
  --accent-600:#A8DA2E;
  --data-500:#FF8A3D;
  --bg:#F7F6F2;
  --surface:#FFFFFF;
  --surface-2:#EFF3EE;
  --line:#E1E7E0;
  --text-900:#111A16;
  --text-600:#4C5A54;
  --text-400:#8A9791;
  --grad-brand:linear-gradient(135deg,#0A3830 0%,#17695A 52%,#2E9E7E 100%);
  --grad-accent:linear-gradient(120deg,#C6F24E 0%,#8FE07A 100%);
  --grad-soft:linear-gradient(180deg,rgba(30,138,112,.10),rgba(30,138,112,0));
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","SF Mono","Roboto Mono",ui-monospace,Consolas,monospace;
  --r-sm:10px;--r-md:16px;--r-lg:24px;--r-xl:32px;--r-full:999px;
  --sh-1:0 1px 2px rgba(10,56,48,.06);
  --sh-2:0 8px 24px rgba(10,56,48,.08);
  --sh-3:0 20px 48px rgba(10,56,48,.14);
  --ring:0 0 0 3px rgba(30,138,112,.32);
  --ease:240ms cubic-bezier(.2,.7,.3,1);
  --sp-section:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--bg);color:var(--text-600);
  font-family:var(--font-sans);font-size:16px;line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;background:none;border:none;padding:0;}
h1,h2,h3,h4,p,ul,ol{margin:0;padding:0;}
ul,ol{list-style:none;}
:focus-visible{outline:none;box-shadow:var(--ring);border-radius:var(--r-sm);}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--brand-900);color:#CFE9E1;font-size:13px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px;padding:6px 24px;max-width:1200px;margin:0 auto;}
.topbar strong{color:var(--accent-500);font-weight:600;}
.topbar-time{font-family:var(--font-mono);font-variant-numeric:tabular-nums;color:#9FC9BC;white-space:nowrap;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  transition:background var(--ease),box-shadow var(--ease),border-color var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.86);
  backdrop-filter:saturate(180%) blur(14px);
  border-bottom-color:var(--line);
  box-shadow:var(--sh-1);
}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;transition:height var(--ease);}
.site-header.is-scrolled .header-inner{height:64px;}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:32px;height:32px;border-radius:10px;background:var(--grad-brand);
  display:grid;place-items:center;color:var(--accent-500);
  font-weight:800;font-size:15px;letter-spacing:-.5px;box-shadow:var(--sh-1);
}
.logo-text{font-size:17px;font-weight:700;letter-spacing:-.2px;color:var(--text-900);white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 12px;
  font-size:15px;font-weight:500;color:var(--text-600);transition:color var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:8px;height:2px;border-radius:2px;
  background:var(--grad-accent);transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav-link:hover{color:var(--brand-700);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-700);font-weight:700;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-tools{margin-left:auto;display:flex;align-items:center;gap:12px;}
.search{
  display:flex;align-items:center;gap:8px;background:var(--surface-2);
  border:1px solid transparent;border-radius:var(--r-full);
  height:40px;width:240px;padding:0 14px;transition:width var(--ease),background var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.search:focus-within{width:320px;background:var(--surface);border-color:var(--brand-300);box-shadow:var(--ring);}
.search svg{flex:0 0 auto;width:16px;height:16px;stroke:var(--text-400);}
.search input{border:none;background:transparent;outline:none;width:100%;font-size:14px;color:var(--text-900);}
.search input::placeholder{color:var(--text-400);}
.login-link{font-size:15px;font-weight:500;color:var(--text-600);padding:0 4px;height:44px;display:inline-flex;align-items:center;transition:color var(--ease);}
.login-link:hover{color:var(--brand-700);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-full);font-weight:600;letter-spacing:.2px;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),filter var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--grad-brand);color:#fff;padding:0 22px;height:44px;font-size:15px;
  box-shadow:0 8px 20px rgba(10,56,48,.18);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.08);box-shadow:0 14px 30px rgba(10,56,48,.26),0 0 0 4px rgba(30,138,112,.10);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  border:1.5px solid var(--brand-500);color:var(--brand-700);background:transparent;
  padding:0 20px;height:44px;font-size:15px;
}
.btn-ghost:hover{background:var(--brand-100);}
.btn-accent{
  background:var(--grad-accent);color:var(--brand-900);padding:0 22px;height:44px;font-size:15px;
  box-shadow:0 8px 20px rgba(168,218,46,.30);
}
.btn-accent:hover{transform:translateY(-1px);filter:brightness(1.04);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-link{color:var(--brand-700);font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.btn-link:hover{text-decoration:underline;text-underline-offset:3px;}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none;}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--surface);
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--brand-900);border-radius:2px;position:relative;}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-900);border-radius:2px;}
.menu-toggle span::before{top:-6px;}
.menu-toggle span::after{top:6px;}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(10,56,48,.36);opacity:0;visibility:hidden;
  transition:opacity var(--ease),visibility var(--ease);z-index:80;
}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:84%;max-width:360px;background:var(--surface);
  z-index:90;transform:translateX(100%);transition:transform var(--ease);
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;
}
body.drawer-open .drawer{transform:translateX(0);}
body.drawer-open .drawer-mask{opacity:1;visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;}
.drawer-close{width:44px;height:44px;border-radius:12px;background:var(--surface-2);font-size:20px;color:var(--brand-900);display:grid;place-items:center;}
.drawer .search{width:100%;margin-bottom:18px;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  min-height:52px;display:flex;align-items:center;justify-content:space-between;
  border-bottom:1px solid var(--line);font-size:16px;font-weight:500;color:var(--text-900);
}
.drawer-nav a.is-active{color:var(--brand-700);font-weight:700;}
.drawer-foot{margin-top:22px;display:flex;gap:12px;}
.drawer-foot .btn{flex:1;}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--grad-brand);color:#fff;overflow:hidden;}
.hero::after{
  content:"";position:absolute;right:-120px;bottom:-120px;width:560px;height:560px;
  background-image:repeating-linear-gradient(to right,rgba(255,255,255,.5) 0 1px,transparent 1px 30px),
                   repeating-linear-gradient(to bottom,rgba(255,255,255,.5) 0 1px,transparent 1px 30px);
  -webkit-mask-image:radial-gradient(circle at 65% 65%,#000 0%,transparent 72%);
  mask-image:radial-gradient(circle at 65% 65%,#000 0%,transparent 72%);
  opacity:.08;pointer-events:none;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;min-height:620px;padding-top:56px;padding-bottom:72px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--r-full);
  background:rgba(198,242,78,.16);border:1px solid rgba(198,242,78,.42);color:var(--accent-500);
  font-size:13px;font-weight:600;letter-spacing:.4px;
}
.hero h1{
  margin-top:22px;font-size:52px;line-height:1.24;font-weight:800;letter-spacing:-.5px;color:#fff;
  max-width:15em;
}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.85;color:#CFE9E1;max-width:34em;}
.hero-cta{margin-top:32px;display:flex;flex-wrap:wrap;gap:14px;}
.hero .btn-ghost{border-color:rgba(255,255,255,.5);color:#fff;}
.hero .btn-ghost:hover{background:rgba(255,255,255,.14);}
.chip-row{margin-top:30px;display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;gap:7px;height:30px;padding:0 14px;border-radius:var(--r-full);
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  font-size:13px;color:#E7F5F0;
}
.chip::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-500);}
.hero-visual{position:relative;}
.hero-card{
  position:relative;border-radius:var(--r-xl);overflow:hidden;box-shadow:0 30px 70px rgba(4,28,23,.45);
  border:1px solid rgba(255,255,255,.18);background:#0A3830;
}
.hero-card img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-badge-float{
  position:absolute;background:rgba(255,255,255,.94);border-radius:var(--r-md);
  padding:12px 16px;box-shadow:var(--sh-3);display:flex;flex-direction:column;gap:2px;
  backdrop-filter:blur(6px);
}
.hero-badge-float .num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-weight:700;font-size:22px;color:var(--brand-900);line-height:1.1;}
.hero-badge-float .lbl{font-size:12px;color:var(--text-400);}
.hbf-1{top:22px;left:-26px;}
.hbf-2{bottom:26px;right:-18px;}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sp-section) 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:42px;}
.section-tag{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:1.6px;text-transform:uppercase;
  color:var(--brand-500);margin-bottom:12px;
}
.section-title{font-size:30px;line-height:1.35;font-weight:800;color:var(--text-900);letter-spacing:-.3px;}
.section-desc{margin-top:12px;font-size:16px;line-height:1.85;color:var(--text-600);max-width:46em;}

/* ---------- 指标看板 ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.metric-card{
  position:relative;background:var(--surface);border-radius:20px;padding:28px 24px 24px;
  box-shadow:var(--sh-2);border:1px solid var(--line);overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease);
}
.metric-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad-accent);}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3),0 0 0 4px rgba(30,138,112,.10);}
.metric-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;}
.metric-value{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:40px;font-weight:700;color:var(--brand-900);line-height:1.1;}
.metric-unit{font-size:15px;font-weight:600;color:var(--brand-500);margin-left:4px;}
.metric-label{margin-top:10px;font-size:14px;color:var(--text-600);}
.trend{
  display:inline-flex;align-items:center;gap:4px;height:26px;padding:0 10px;border-radius:var(--r-full);
  font-size:12px;font-family:var(--font-mono);font-weight:700;
  background:rgba(255,138,61,.12);color:#C25E1C;border:1px solid rgba(255,138,61,.28);
}
.trend.good{background:rgba(30,138,112,.10);color:var(--brand-700);border-color:rgba(30,138,112,.24);}

/* ---------- Bento 服务矩阵 ---------- */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.bento-card{
  background:var(--surface);border-radius:var(--r-lg);border:1px solid var(--line);
  box-shadow:var(--sh-2);overflow:hidden;transition:transform var(--ease),box-shadow var(--ease);
  display:flex;flex-direction:column;
}
.bento-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3),0 0 0 4px rgba(30,138,112,.10);}
.bento-lg{grid-column:span 8;flex-direction:row;align-items:stretch;}
.bento-image{flex:0 0 46%;overflow:hidden;}
.bento-image img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease);}
.bento-card:hover .bento-image img{transform:scale(1.04);}
.bento-body{padding:28px;display:flex;flex-direction:column;gap:14px;}
.bento-title{font-size:24px;font-weight:800;color:var(--text-900);line-height:1.35;}
.bento-text{font-size:15px;line-height:1.85;color:var(--text-600);}
.bento-list{display:flex;flex-direction:column;gap:10px;margin-top:4px;}
.bento-list li{display:flex;gap:10px;font-size:15px;color:var(--text-600);line-height:1.75;}
.bento-list li::before{
  content:"";flex:0 0 auto;width:18px;height:18px;margin-top:5px;border-radius:6px;
  background:var(--brand-100);border:1px solid var(--brand-300);
  background-image:linear-gradient(135deg,var(--brand-500),var(--brand-300));
  box-shadow:inset 0 0 0 3px var(--surface);
}
.bento-sm{grid-column:span 4;}
.bento-sm .bento-image img{aspect-ratio:16/10;}
.bento-sm .bento-body{padding:24px;gap:10px;}
.bento-sm .bento-title{font-size:20px;}
.bento-wide{grid-column:span 12;flex-direction:row;align-items:center;justify-content:space-between;gap:24px;padding:26px 28px;background:var(--surface-2);}
.bento-wide .bento-title{font-size:20px;}
.bento-wide .bento-text{max-width:52em;}

/* ---------- 结果对比 ---------- */
.compare{
  display:grid;grid-template-columns:1fr 1px 1fr;gap:0;
  background:var(--surface);border-radius:var(--r-lg);border:1px solid var(--line);
  box-shadow:var(--sh-2);overflow:hidden;
}
.compare-side{padding:36px 32px;}
.compare-side h3{font-size:20px;font-weight:800;color:var(--text-900);display:flex;align-items:center;gap:10px;}
.compare-side h3 .dot{width:10px;height:10px;border-radius:50%;background:var(--text-400);}
.compare-side.after h3 .dot{background:var(--accent-600);}
.compare-side .hint{margin-top:8px;font-size:14px;color:var(--text-400);}
.compare-list{margin-top:22px;display:flex;flex-direction:column;gap:16px;}
.compare-list li{display:flex;gap:12px;font-size:15px;line-height:1.8;color:var(--text-600);}
.compare-list li .ico{
  flex:0 0 auto;width:22px;height:22px;border-radius:8px;display:grid;place-items:center;
  font-size:12px;font-weight:800;margin-top:3px;
}
.before .ico{background:#F1F1EC;color:var(--text-400);}
.after .ico{background:var(--brand-100);color:var(--brand-700);}
.compare-divider{background:linear-gradient(180deg,rgba(30,138,112,0),var(--brand-300),rgba(30,138,112,0));}
.compare-foot{margin-top:34px;display:flex;flex-wrap:wrap;gap:12px;}
.badge{
  display:inline-flex;align-items:center;gap:8px;height:26px;padding:0 10px;border-radius:var(--r-full);
  background:var(--accent-500);color:var(--brand-900);font-size:12px;font-weight:700;
}
.badge-soft{background:rgba(255,255,255,.85);border:1px solid var(--line);color:var(--brand-700);}
.badge .num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;background:var(--surface);border-radius:var(--r-lg);
  border:1px solid var(--line);box-shadow:var(--sh-2);overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3),0 0 0 4px rgba(30,138,112,.10);}
.news-card--lead{grid-column:span 2;grid-row:span 2;}
.news-thumb{position:relative;overflow:hidden;}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform var(--ease);}
.news-card--lead .news-thumb img{aspect-ratio:16/8;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-cat{
  position:absolute;top:12px;left:12px;height:26px;padding:0 12px;border-radius:var(--r-full);
  background:rgba(10,56,48,.72);color:#fff;font-size:12px;display:inline-flex;align-items:center;
  backdrop-filter:blur(4px);
}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-title{font-size:18px;font-weight:700;line-height:1.5;color:var(--text-900);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card--lead .news-title{font-size:22px;}
.news-sum{font-size:14px;line-height:1.8;color:var(--text-600);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-400);
}
.news-meta time{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}
.news-meta .arrow{color:var(--brand-500);font-weight:700;transition:transform var(--ease);}
.news-card:hover .news-meta .arrow{transform:translateX(4px);}
.empty-state{
  grid-column:1 / -1;min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-lg);padding:40px 24px;text-align:center;
}
.empty-state .ico{
  width:56px;height:56px;border-radius:20px;background:var(--surface-2);display:grid;place-items:center;
  font-size:22px;color:var(--brand-500);font-weight:800;
}
.empty-state p{font-size:15px;color:var(--text-600);}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px;}
.faq-item{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;transition:box-shadow var(--ease),border-color var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--grad-accent);
  transform:scaleY(0);transform-origin:top;transition:transform var(--ease);
}
.faq-item.is-open{border-color:var(--brand-300);box-shadow:var(--sh-2);}
.faq-item.is-open::before{transform:scaleY(1);}
.faq-q{
  width:100%;text-align:left;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:64px;padding:16px 24px;font-size:17px;font-weight:600;color:var(--text-900);line-height:1.6;
}
.faq-q .sign{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;background:var(--surface-2);
  display:grid;place-items:center;color:var(--brand-700);font-size:18px;font-weight:600;
  transition:transform var(--ease),background var(--ease);
}
.faq-item.is-open .faq-q .sign{transform:rotate(45deg);background:var(--accent-500);color:var(--brand-900);}
.faq-a{max-height:0;overflow:hidden;transition:max-height var(--ease);}
.faq-a-inner{padding:0 24px 22px 24px;font-size:15px;line-height:1.85;color:var(--text-600);}
.faq-a-inner ul{display:flex;flex-direction:column;gap:8px;margin-top:10px;}
.faq-a-inner li{padding-left:16px;position:relative;}
.faq-a-inner li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--brand-300);}

/* ---------- 表单 ---------- */
.cta-band{
  background:var(--grad-soft);border:1px solid var(--line);border-radius:var(--r-xl);
  padding:44px;display:grid;grid-template-columns:5fr 7fr;gap:48px;
}
.cta-band .section-title{font-size:26px;}
.cta-points{margin-top:24px;display:flex;flex-direction:column;gap:12px;}
.cta-points li{display:flex;gap:10px;font-size:15px;color:var(--text-600);}
.cta-points li::before{content:"✓";color:var(--brand-500);font-weight:800;}
.form-card{background:var(--surface);border-radius:var(--r-lg);border:1px solid var(--line);box-shadow:var(--sh-2);padding:28px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:14px;font-weight:600;color:var(--text-900);}
.field input[type="text"],.field input[type="tel"],.field input[type="email"],.field select,.field textarea{
  height:48px;border-radius:14px;border:1px solid var(--line);background:var(--surface-2);
  padding:0 16px;font-size:15px;color:var(--text-900);outline:none;
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.field textarea{height:auto;min-height:112px;padding:14px 16px;line-height:1.7;resize:vertical;}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--brand-500) 50%),linear-gradient(135deg,var(--brand-500) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;}
.field input:focus,.field select:focus,.field textarea:focus{background:var(--surface);border-color:var(--brand-500);box-shadow:var(--ring);}
.check{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-600);line-height:1.7;}
.check input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand-500);}
.form-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:22px;}
.form-note{margin-top:14px;font-size:13px;color:var(--text-400);}
.form-msg{display:none;margin-top:16px;padding:14px 16px;border-radius:14px;background:var(--brand-100);color:var(--brand-700);font-size:14px;}
.form-msg.show{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:#B9D5CD;margin-top:0;}
.footer-line{height:1px;background:var(--grad-accent);}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding:64px 0 44px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.85;color:#9FC9BC;max-width:30em;}
.footer-social{margin-top:20px;display:flex;gap:10px;}
.footer-social span{
  width:38px;height:38px;border-radius:12px;background:rgba(255,255,255,.08);
  display:grid;place-items:center;font-size:13px;color:#CFE9E1;border:1px solid rgba(255,255,255,.10);
}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{font-size:14px;color:#9FC9BC;transition:color var(--ease);display:inline-flex;align-items:center;min-height:24px;}
.footer-col a:hover{color:var(--accent-500);}
.footer-contact li{display:flex;gap:10px;font-size:14px;line-height:1.7;color:#9FC9BC;}
.footer-contact .k{color:#fff;font-weight:600;flex:0 0 auto;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);padding:22px 0 30px;
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:#8FBAB0;
}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:18px;}
.footer-bottom a:hover{color:var(--accent-500);}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .hero h1{font-size:44px;}
}
@media (max-width:1023px){
  :root{--sp-section:72px;}
  .main-nav,.header-tools .search,.login-link{display:none;}
  .menu-toggle{display:flex;}
  .header-tools{margin-left:auto;}
  .hero-inner{grid-template-columns:1fr;gap:36px;min-height:auto;padding-top:44px;padding-bottom:56px;}
  .hero h1{font-size:38px;max-width:none;}
  .hero-visual{max-width:560px;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .bento-lg{grid-column:span 12;flex-direction:column;}
  .bento-image{flex:0 0 auto;}
  .bento-sm{grid-column:span 6;}
  .bento-wide{flex-direction:column;align-items:flex-start;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .news-card--lead{grid-column:span 2;grid-row:auto;}
  .cta-band{grid-template-columns:1fr;gap:32px;padding:32px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 36px;}
}
@media (max-width:767px){
  body{font-size:15px;}
  .container{padding:0 20px;}
  .topbar-time{display:none;}
  .hero h1{font-size:30px;}
  .hero-sub{font-size:15px;}
  .hero .btn{flex:1 1 auto;}
  .hbf-1{left:-8px;top:12px;}
  .hbf-2{right:-6px;bottom:12px;}
  .section-title{font-size:22px;}
  .compare{grid-template-columns:1fr;}
  .compare-side{padding:26px 22px;}
  .compare-divider{height:1px;background:linear-gradient(90deg,rgba(30,138,112,0),var(--brand-300),rgba(30,138,112,0));}
  .news-grid{grid-template-columns:1fr;}
  .news-card--lead{grid-column:span 1;}
  .bento-sm{grid-column:span 12;}
  .form-grid{grid-template-columns:1fr;}
  .cta-band{padding:24px;}
  .footer-top{grid-template-columns:1fr;gap:8px;}
  .footer-col{border-bottom:1px solid rgba(255,255,255,.10);}
  .footer-col h4{min-height:52px;display:flex;align-items:center;justify-content:space-between;margin-bottom:0;cursor:pointer;}
  .footer-col h4::after{content:"+";color:var(--accent-500);font-weight:700;}
  .footer-col.open h4::after{content:"−";}
  .footer-col ul{max-height:0;overflow:hidden;transition:max-height var(--ease);gap:0;}
  .footer-col.open ul{max-height:340px;padding-bottom:14px;}
  .footer-col ul li a{min-height:48px;display:flex;align-items:center;}
  .footer-brand{padding-bottom:22px;border-bottom:1px solid rgba(255,255,255,.10);margin-bottom:8px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .metrics{grid-template-columns:1fr;}
  .metric-value{font-size:34px;}
  .hero-cta{flex-direction:column;}
  .hero-cta .btn{width:100%;}
  .chip-row{gap:8px;}
  .form-actions .btn{width:100%;}
}

/* roulang page: article */
:root{
  --brand-900:#0A3830;--brand-700:#115B4C;--brand-500:#1E8A70;--brand-300:#6FC7AE;--brand-100:#DFF3EC;
  --accent-500:#C6F24E;--accent-600:#A8DA2E;--data-500:#FF8A3D;
  --bg:#F7F6F2;--surface:#FFFFFF;--surface-2:#EFF3EE;--line:#E1E7E0;
  --text-900:#111A16;--text-600:#4C5A54;--text-400:#8A9791;
  --grad-brand:linear-gradient(135deg,#0A3830 0%,#17695A 52%,#2E9E7E 100%);
  --grad-accent:linear-gradient(120deg,#C6F24E 0%,#8FE07A 100%);
  --grad-soft:linear-gradient(180deg,rgba(30,138,112,.10),rgba(30,138,112,0));
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","SF Mono","Roboto Mono",ui-monospace,Consolas,monospace;
  --r-sm:10px;--r-md:16px;--r-lg:24px;--r-xl:32px;--r-full:999px;
  --sh-1:0 1px 2px rgba(10,56,48,.06);
  --sh-2:0 8px 24px rgba(10,56,48,.08);
  --sh-3:0 20px 48px rgba(10,56,48,.14);
  --t:240ms cubic-bezier(.2,.7,.3,1);
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text-600);
  font-family:var(--font-sans);font-size:16px;line-height:1.8;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand-700);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--brand-500)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--text-900);line-height:1.3;font-weight:700}
p{margin:0}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(30,138,112,.32);border-radius:var(--r-sm)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--brand-900);color:#CFE7DF;font-size:13px}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px;padding-top:6px;padding-bottom:6px}
.topbar .dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent-500);margin-right:8px;vertical-align:middle}
.topbar .stamp{font-family:var(--font-mono);color:#8FBFB2;font-size:12px}
.topbar .to-hide{display:none}
@media(min-width:1024px){.topbar .to-hide{display:inline}}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:rgba(247,246,242,.86);backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:background var(--t),border-color var(--t),box-shadow var(--t)}
.site-header.is-stuck{background:rgba(255,255,255,.92);border-bottom-color:var(--line);box-shadow:var(--sh-1)}
.nav-inner{display:flex;align-items:center;gap:20px;height:var(--nav-h);transition:height var(--t)}
.site-header.is-stuck .nav-inner{height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{width:32px;height:32px;border-radius:10px;background:var(--grad-brand);color:#fff;display:grid;place-items:center;font-size:15px;font-weight:800;letter-spacing:-.5px}
.logo-text{font-size:17px;font-weight:700;color:var(--text-900);letter-spacing:-.2px;white-space:nowrap}
.logo:hover .logo-text{color:var(--brand-700)}

.main-nav{display:none;align-items:center;gap:4px;margin-left:8px}
.nav-link{position:relative;display:inline-flex;align-items:center;height:40px;padding:0 12px;font-size:15px;font-weight:500;color:var(--text-600);border-radius:var(--r-sm)}
.nav-link::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--grad-accent);transform:scaleX(0);transform-origin:left;transition:transform var(--t)}
.nav-link:hover{color:var(--brand-700)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-700);font-weight:700}
.nav-link.is-active::after{transform:scaleX(1)}

.nav-right{display:none;align-items:center;gap:12px;margin-left:auto}
.nav-search{position:relative;width:240px;transition:width var(--t)}
.nav-search input{width:100%;height:40px;border-radius:var(--r-full);border:1px solid transparent;background:var(--surface-2);padding:0 16px 0 40px;font-size:14px;color:var(--text-900);transition:background var(--t),border-color var(--t),box-shadow var(--t)}
.nav-search input::placeholder{color:var(--text-400)}
.nav-search i{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--text-400);font-size:13px}
.nav-search input:focus{background:#fff;border-color:var(--brand-300);box-shadow:0 0 0 3px rgba(30,138,112,.18);outline:none}
.nav-search:focus-within{width:320px}
.btn-login{font-size:15px;font-weight:500;color:var(--text-600);padding:0 6px;height:40px;display:inline-flex;align-items:center}
.btn-login:hover{color:var(--brand-700)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-full);font-weight:600;font-size:15px;transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),filter var(--t);white-space:nowrap}
.btn-primary{background:var(--grad-accent);color:var(--brand-900);padding:0 20px;height:40px;box-shadow:0 4px 14px rgba(166,214,60,.35)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(166,214,60,.45);filter:brightness(1.04);color:var(--brand-900)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{border:1.5px solid var(--brand-500);color:var(--brand-700);background:transparent;height:44px;padding:0 22px}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-900)}
.btn-lg{height:48px;padding:0 26px;font-size:16px}
.btn-block{width:100%}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand-700);font-weight:600;font-size:15px}
.btn-text i{transition:transform var(--t)}
.btn-text:hover{text-decoration:underline;text-underline-offset:3px}
.btn-text:hover i{transform:translateX(3px)}

.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:var(--r-sm);color:var(--brand-900);font-size:19px;margin-left:auto}
.nav-toggle:hover{background:var(--surface-2)}

@media(min-width:1024px){
  .main-nav{display:flex}
  .nav-right{display:flex}
  .nav-toggle{display:none}
}

/* 移动抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(10,56,48,.36);opacity:0;pointer-events:none;transition:opacity var(--t);z-index:80}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{position:fixed;top:0;right:0;bottom:0;width:84%;max-width:360px;background:#fff;z-index:90;transform:translateX(102%);transition:transform var(--t);display:flex;flex-direction:column;padding:20px;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:44px;height:44px;border-radius:var(--r-sm);display:grid;place-items:center;font-size:18px;color:var(--text-600)}
.drawer-close:hover{background:var(--surface-2)}
.drawer-search{position:relative;margin-bottom:16px}
.drawer-search input{width:100%;height:44px;border-radius:var(--r-full);background:var(--surface-2);border:1px solid transparent;padding:0 16px 0 40px;font-size:14px}
.drawer-search i{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--text-400);font-size:13px}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{display:flex;align-items:center;height:52px;font-size:16px;color:var(--text-600);border-bottom:1px solid var(--line)}
.drawer-nav a.is-active{color:var(--brand-700);font-weight:700}
.drawer-foot{margin-top:auto;display:flex;gap:12px}
.drawer-foot .btn{flex:1;height:46px}

/* ============ 阅读进度条 ============ */
.progress{position:sticky;top:var(--nav-h);z-index:55;height:3px;background:transparent}
.progress span{display:block;height:100%;width:0;background:var(--grad-accent);transition:width 120ms linear}

/* ============ 面包屑 ============ */
.crumbs{padding:22px 0 6px;font-size:14px;color:var(--text-400)}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumbs li{display:flex;align-items:center;gap:8px;min-width:0}
.crumbs .sep{color:#C4CFC9}
.crumbs a{color:var(--text-400)}
.crumbs a:hover{color:var(--brand-700)}
.crumbs .current{color:var(--text-600);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章布局 ============ */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:40px;padding-bottom:64px}
@media(min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,760px) 280px;justify-content:center;gap:48px}
}
.article-main{min-width:0}

.article-head{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-2);padding:28px;margin-top:12px}
@media(max-width:767px){.article-head{padding:20px}}
.badge-cat{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-full);background:var(--brand-100);color:var(--brand-700);font-size:12px;font-weight:700}
.article-head h1{font-size:32px;line-height:1.35;margin:16px 0 18px;letter-spacing:-.3px}
@media(max-width:767px){.article-head h1{font-size:23px}}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:18px;padding-top:18px;border-top:1px solid var(--line)}
.meta-item{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--text-400)}
.meta-item .mono{font-family:var(--font-mono);color:var(--text-600)}
.share-group{display:flex;gap:8px;margin-left:auto}
.icon-btn{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;color:var(--text-600);border:1px solid var(--line);background:#fff;transition:background var(--t),color var(--t),transform var(--t),border-color var(--t)}
.icon-btn:hover{background:var(--brand-100);color:var(--brand-700);border-color:var(--brand-300)}
.icon-btn:active{transform:translateY(1px)}

/* ============ 正文排版 ============ */
.article-body{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-2);padding:36px 40px;margin-top:24px;max-width:760px}
@media(max-width:767px){.article-body{padding:22px 20px;margin-top:18px}}
.article-body p{font-size:16px;line-height:1.9;margin-bottom:20px;color:var(--text-600)}
.article-body h2{font-size:24px;line-height:1.35;margin:48px 0 18px;padding-left:14px;border-left:4px solid var(--brand-500)}
.article-body h2:first-child{margin-top:0}
.article-body h3{font-size:19px;margin:32px 0 14px;color:var(--brand-900)}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{font-size:16px;line-height:1.85;margin-bottom:8px;color:var(--text-600)}
.article-body li::marker{color:var(--brand-500)}
.article-body blockquote{margin:24px 0;padding:18px 22px;background:var(--surface-2);border-left:4px solid var(--brand-500);border-radius:0 16px 16px 0;color:var(--brand-900)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:20px;margin:24px auto;height:auto}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--text-400);text-align:center;margin-top:10px}
.article-body a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
.article-body strong{color:var(--text-900)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}
.article-body .table-wrap{overflow-x:auto;margin:24px 0;border:1px solid var(--line);border-radius:var(--r-md)}
.article-body table{width:100%;border-collapse:collapse;min-width:520px;font-size:15px}
.article-body thead th{background:var(--brand-100);color:var(--brand-900);text-align:left;padding:12px 16px;font-weight:700;white-space:nowrap}
.article-body td{padding:12px 16px;border-top:1px solid var(--line);color:var(--text-600)}
.article-body pre{background:var(--brand-900);color:#DFF3EC;border-radius:16px;padding:20px;overflow-x:auto;font-family:var(--font-mono);font-size:13px;line-height:1.7;margin:24px 0}
.article-body code{font-family:var(--font-mono);font-size:.92em}
.article-body p code,.article-body li code{background:var(--surface-2);padding:2px 6px;border-radius:6px;color:var(--brand-700)}

.empty-state{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-2);padding:64px 24px;text-align:center;margin-top:24px;min-height:280px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px}
.empty-state .ico{width:56px;height:56px;border-radius:var(--r-md);background:var(--surface-2);color:var(--brand-500);display:grid;place-items:center;font-size:22px}
.empty-state h2{font-size:20px}
.empty-state p{font-size:14px;color:var(--text-400);max-width:420px}

/* 正文尾部 */
.tag-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:28px}
.tag-chip{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-full);background:var(--surface-2);color:var(--brand-700);font-size:13px;font-weight:600;transition:background var(--t)}
.tag-chip:hover{background:var(--brand-100);color:var(--brand-900)}

.post-nav{display:grid;grid-template-columns:1fr;gap:16px;margin-top:28px}
@media(min-width:768px){.post-nav{grid-template-columns:1fr 1fr}}
.post-nav a{display:flex;gap:12px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:18px;box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.post-nav a:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:var(--brand-300);color:var(--text-900)}
.post-nav .dir{font-size:12px;color:var(--text-400);display:block;margin-bottom:4px}
.post-nav .ttl{font-size:15px;font-weight:600;color:var(--text-900);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-nav i{margin-top:4px;color:var(--brand-500)}

.back-row{margin-top:20px}

/* ============ 侧栏 TOC ============ */
.article-side{display:none}
@media(min-width:1200px){
  .article-side{display:block}
  .toc-card{position:sticky;top:104px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-1);max-height:calc(100vh - 140px);overflow-y:auto}
}
.toc-card h3{font-size:15px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.toc-card h3 i{color:var(--brand-500)}
.toc-list a{display:block;font-size:14px;color:var(--text-400);padding:9px 0 9px 12px;border-left:2px solid var(--line);line-height:1.5}
.toc-list a:hover{color:var(--brand-700);border-left-color:var(--brand-300)}
.toc-list a.is-current{color:var(--brand-700);font-weight:700;border-left-color:var(--brand-500)}
.toc-empty{font-size:13px;color:var(--text-400)}

/* ============ 相关推荐 ============ */
.section{padding:64px 0}
@media(max-width:767px){.section{padding:44px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.section-head h2{font-size:26px;letter-spacing:-.2px}
@media(max-width:767px){.section-head h2{font-size:21px}}
.section-head .sub{font-size:14px;color:var(--text-400);margin-top:8px}
.card-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:768px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr)}}
.card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-2);overflow:hidden;transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:var(--brand-300)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.card:hover .card-media img{transform:scale(1.04)}
.card-cat{position:absolute;left:12px;top:12px;height:26px;display:inline-flex;align-items:center;padding:0 10px;border-radius:var(--r-full);background:rgba(10,56,48,.72);color:#fff;font-size:12px;font-weight:600;backdrop-filter:blur(4px)}
.card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body .desc{font-size:14px;line-height:1.75;color:var(--text-400);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-400);padding-top:8px;border-top:1px solid var(--line)}
.card-meta .mono{font-family:var(--font-mono)}
.card-meta i{margin-left:auto;color:var(--brand-500);transition:transform var(--t)}
.card:hover .card-meta i{transform:translateX(3px)}

/* ============ CTA 条 ============ */
.cta-band{background:var(--grad-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cta-inner{display:grid;grid-template-columns:1fr;gap:24px;align-items:center;padding:48px 0}
@media(min-width:1024px){.cta-inner{grid-template-columns:1.2fr .8fr}}
.cta-inner h2{font-size:26px;margin-bottom:12px}
.cta-inner p{font-size:15px;color:var(--text-600);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 页脚 ============ */
.site-footer{background:#fff;margin-top:0;padding-bottom:28px}
.footer-line{height:1px;background:var(--grad-brand);opacity:.5}
.footer-top{display:grid;grid-template-columns:1fr;gap:8px;padding:48px 0 32px}
@media(min-width:768px){.footer-top{grid-template-columns:repeat(2,1fr);gap:32px}}
@media(min-width:1024px){.footer-top{grid-template-columns:1.5fr 1fr 1fr 1.2fr}}
.footer-col h4{font-size:15px;margin-bottom:16px}
.footer-col ul li{margin-bottom:12px;font-size:14px;color:var(--text-400)}
.footer-col ul li a{color:var(--text-400)}
.footer-col ul li a:hover{color:var(--brand-700)}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--text-400);margin:14px 0 16px;max-width:380px}
.footer-social{display:flex;gap:8px}
.footer-social span{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-full);background:var(--surface-2);color:var(--brand-700);font-size:12px;font-weight:600}
.footer-contact .k{color:var(--text-600);font-weight:600}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--line);padding-top:22px;font-size:13px;color:var(--text-400)}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom .links a{color:var(--text-400)}
.footer-bottom .links a:hover{color:var(--brand-700)}
@media(max-width:1023px){
  .footer-col.acc ul{display:none;padding-top:4px}
  .footer-col.acc.is-open ul{display:block}
  .footer-col h4{display:flex;align-items:center;justify-content:space-between;min-height:48px;margin-bottom:0;border-bottom:1px solid var(--line);cursor:pointer}
  .footer-col h4::after{content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;color:var(--text-400);transition:transform var(--t)}
  .footer-col.acc.is-open h4::after{transform:rotate(180deg)}
  .footer-col ul li{margin-bottom:0;min-height:48px;display:flex;align-items:center}
  .footer-brand{margin-bottom:12px}
  .footer-brand h4{display:none}
}

/* roulang page: category1 */
:root{
  --brand-900:#0A3830;--brand-700:#115B4C;--brand-500:#1E8A70;--brand-300:#6FC7AE;--brand-100:#DFF3EC;
  --accent-500:#C6F24E;--accent-600:#A8DA2E;--data-500:#FF8A3D;
  --bg:#F7F6F2;--surface:#FFFFFF;--surface-2:#EFF3EE;--line:#E1E7E0;
  --text-900:#111A16;--text-600:#4C5A54;--text-400:#8A9791;
  --grad-brand:linear-gradient(135deg,#0A3830 0%,#17695A 52%,#2E9E7E 100%);
  --grad-accent:linear-gradient(120deg,#C6F24E 0%,#8FE07A 100%);
  --grad-soft:linear-gradient(180deg,rgba(30,138,112,.10),rgba(30,138,112,0));
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","SF Mono","Roboto Mono",ui-monospace,Consolas,monospace;
  --r-sm:10px;--r-md:16px;--r-lg:24px;--r-xl:32px;--r-full:999px;
  --sh-1:0 1px 2px rgba(10,56,48,.06);
  --sh-2:0 8px 24px rgba(10,56,48,.08);
  --sh-3:0 20px 48px rgba(10,56,48,.14);
  --t:240ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text-600);
  font-family:var(--font-sans);font-size:16px;line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color var(--t),background-color var(--t),border-color var(--t),box-shadow var(--t),transform var(--t)}
img{max-width:100%;height:auto;display:block}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
:focus-visible{outline:3px solid rgba(30,138,112,.32);outline-offset:2px;border-radius:8px}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 顶栏 ---------- */
.topbar{background:var(--brand-900);color:rgba(255,255,255,.82);font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px}
.topbar-msg{display:flex;align-items:center;gap:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.live-dot{width:8px;height:8px;border-radius:50%;background:var(--accent-500);box-shadow:0 0 0 4px rgba(198,242,78,.18);flex:none}
.topbar-time{font-size:12px;color:rgba(255,255,255,.62);white-space:nowrap}
.topbar-time .mono{color:var(--accent-500)}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60}
.nav-wrap{background:rgba(247,246,242,.86);backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:background var(--t),border-color var(--t),box-shadow var(--t)}
.site-header.is-stuck .nav-wrap{background:rgba(255,255,255,.92);border-bottom-color:var(--line);box-shadow:var(--sh-1)}
.nav-inner{display:flex;align-items:center;gap:24px;min-height:72px;transition:min-height var(--t)}
.site-header.is-stuck .nav-inner{min-height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
  background:var(--grad-brand);color:#fff;font-weight:800;font-size:16px;letter-spacing:-.5px;flex:none;
}
.logo-text{font-size:17px;font-weight:700;letter-spacing:-.2px;color:var(--text-900);white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--text-600);padding:6px 0;white-space:nowrap}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--grad-accent);transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.nav-link:hover{color:var(--brand-700)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-700);font-weight:700}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search{position:relative;display:flex;align-items:center}
.search input{
  width:240px;height:40px;border-radius:var(--r-full);border:1px solid transparent;
  background:var(--surface-2);padding:0 18px;font-size:14px;color:var(--text-900);
  transition:width var(--t),background var(--t),box-shadow var(--t),border-color var(--t);
}
.search input::placeholder{color:var(--text-400)}
.search input:focus{width:320px;background:#fff;border-color:var(--brand-300);box-shadow:0 0 0 3px rgba(30,138,112,.16);outline:none}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-full);font-size:15px;font-weight:600;
  border:1.5px solid transparent;cursor:pointer;white-space:nowrap;transition:all var(--t);
}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--sh-3),0 0 0 4px rgba(30,138,112,.12);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{border-color:var(--brand-500);color:var(--brand-700);background:transparent;height:44px}
.btn-outline:hover{background:var(--brand-100);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;position:relative}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-900);margin:4px auto}
.drawer,.drawer-mask{display:none}
.drawer{position:fixed;inset:0 0 0 auto;width:84%;max-width:360px;background:#fff;z-index:90;transform:translateX(102%);transition:transform var(--t);padding:24px;overflow-y:auto;box-shadow:var(--sh-3)}
.drawer.is-open{transform:translateX(0)}
.drawer-mask{position:fixed;inset:0;background:rgba(10,56,48,.36);z-index:80;opacity:0;transition:opacity var(--t)}
.drawer-mask.is-open{opacity:1}
.drawer-nav{margin:20px 0;display:grid}
.drawer-nav a{display:flex;align-items:center;min-height:52px;border-bottom:1px solid var(--line);font-size:16px;font-weight:500;color:var(--text-900)}
.drawer-nav a.is-active{color:var(--brand-700);font-weight:700}
.drawer-actions{display:grid;gap:12px}

/* ---------- 页头 ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--grad-brand);color:#fff}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-1.png") center/cover no-repeat;
  opacity:.16;mix-blend-mode:luminosity;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-60px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,242,78,.22),rgba(198,242,78,0) 62%);
}
.page-hero-inner{position:relative;z-index:2;padding:34px 0 56px;min-height:260px;display:flex;flex-direction:column;justify-content:center}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:14px;color:rgba(255,255,255,.68);margin-bottom:18px}
.breadcrumb a{color:rgba(255,255,255,.82)}
.breadcrumb a:hover{color:var(--accent-500)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .cur{color:#fff}
.page-hero h1{font-size:42px;line-height:1.28;font-weight:800;letter-spacing:-.5px;color:#fff;max-width:900px}
.page-hero .lead{margin-top:16px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.82);max-width:640px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--r-full);
  font-size:13px;font-weight:600;color:var(--brand-900);background:var(--accent-500);
}
.chip.ghost{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.26)}
.chip .num{font-family:var(--font-mono);font-variant-numeric:tabular-nums}

/* ---------- 通用板块 ---------- */
main{display:block}
section{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head h2{font-size:30px;line-height:1.32;color:var(--text-900);font-weight:800;letter-spacing:-.3px}
.section-head p{margin-top:10px;font-size:15px;color:var(--text-400);max-width:640px}
.link-more{font-size:15px;font-weight:600;color:var(--brand-700);display:inline-flex;align-items:center;gap:6px}
.link-more:hover{text-decoration:underline;text-underline-offset:3px}

/* ---------- 主栅格：步骤 + 粘性卡 ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:start}
.entry-main{grid-column:span 8;display:grid;gap:20px}
.entry-side{grid-column:span 4;position:sticky;top:96px}
.step-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);display:flex;gap:20px;transition:all var(--t);
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3),0 0 0 4px rgba(30,138,112,.08);border-color:var(--brand-300)}
.step-num{
  flex:none;width:32px;height:32px;border-radius:50%;display:grid;place-items:center;
  background:var(--grad-accent);color:var(--brand-900);font-family:var(--font-mono);font-weight:700;font-size:14px;
}
.step-body h3{font-size:20px;color:var(--text-900);font-weight:700;line-height:1.4}
.step-body p{margin-top:10px;font-size:15px;line-height:1.85;color:var(--text-600)}
.step-body .judge{
  margin-top:14px;display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--brand-700);background:var(--brand-100);border-radius:var(--r-full);padding:6px 14px;
}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-2);
}
.side-card h3{font-size:20px;color:var(--text-900);font-weight:700;margin-bottom:16px}
.side-list{display:grid;gap:12px;margin-bottom:22px}
.side-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.75}
.side-list li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-500);margin-top:9px;flex:none}
.side-badges{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 22px}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-full);
  font-size:12px;font-weight:600;background:var(--surface-2);color:var(--brand-700);border:1px solid var(--line);
}
.badge.hi{background:var(--accent-500);color:var(--brand-900);border-color:transparent}
.badge .num{font-family:var(--font-mono);font-weight:700}
.side-note{margin-top:16px;font-size:13px;color:var(--text-400);line-height:1.7}

/* ---------- 核对要点 bento ---------- */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.bento-big{
  grid-column:span 8;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);
  overflow:hidden;box-shadow:var(--sh-2);display:grid;grid-template-columns:1.05fr .95fr;
}
.bento-big figure{height:100%;min-height:280px;overflow:hidden}
.bento-big img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.bento-big:hover img{transform:scale(1.04)}
.bento-big .txt{padding:32px}
.bento-big h3{font-size:24px;color:var(--text-900);font-weight:700;line-height:1.4}
.bento-big p{margin-top:12px;font-size:15px;line-height:1.85}
.bento-big ul{margin-top:18px;display:grid;gap:10px}
.bento-big li{font-size:14.5px;display:flex;gap:10px}
.bento-big li::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--brand-300);margin-top:8px;flex:none}
.bento-col{grid-column:span 4;display:grid;gap:24px}
.mini-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;
  box-shadow:var(--sh-1);transition:all var(--t);
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3),0 0 0 4px rgba(30,138,112,.08);border-color:var(--brand-300)}
.mini-card .ico{width:40px;height:40px;border-radius:12px;background:var(--brand-100);color:var(--brand-700);display:grid;place-items:center;font-weight:700;font-family:var(--font-mono);font-size:15px;margin-bottom:16px}
.mini-card h3{font-size:19px;color:var(--text-900);font-weight:700;line-height:1.45}
.mini-card p{margin-top:10px;font-size:14.5px;line-height:1.8}

/* ---------- 深色实时带 ---------- */
.band{background:var(--brand-900);color:#fff;position:relative;overflow:hidden}
.band::after{content:"";position:absolute;left:0;right:0;top:0;height:100%;background:linear-gradient(90deg,rgba(198,242,78,.10),rgba(198,242,78,0) 55%)}
.band-inner{position:relative;z-index:2}
.band .section-head h2{color:#fff}
.band .section-head p{color:rgba(255,255,255,.6)}
.status-bar{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-md);
  padding:14px 20px;margin-bottom:28px;font-size:14px;color:rgba(255,255,255,.8)
}
.status-bar .left{display:flex;align-items:center;gap:10px}
.compare{display:grid;grid-template-columns:1fr 1px 1fr;gap:0;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.13);border-radius:var(--r-lg);overflow:hidden}
.compare-col{padding:28px}
.compare-col h3{font-size:18px;font-weight:700;color:#fff;margin-bottom:18px}
.compare-col.bad h3{color:rgba(255,255,255,.72)}
.compare-mid{background:linear-gradient(180deg,rgba(198,242,78,.7),rgba(198,242,78,.1))}
.compare li{display:flex;gap:12px;padding:12px 0;font-size:14.5px;line-height:1.75;color:rgba(255,255,255,.82);border-bottom:1px dashed rgba(255,255,255,.12)}
.compare li:last-child{border-bottom:0}
.compare .mark{flex:none;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;font-size:12px;font-weight:700}
.compare-col.good .mark{background:var(--accent-500);color:var(--brand-900)}
.compare-col.bad .mark{background:rgba(255,255,255,.16);color:rgba(255,255,255,.75)}
.diff-badge{
  display:inline-flex;align-items:center;gap:8px;height:26px;padding:0 12px;border-radius:var(--r-full);
  background:rgba(255,138,61,.16);color:var(--data-500);font-size:12px;font-weight:700;border:1px solid rgba(255,138,61,.35);
}
.band-tags{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.band-tags .tag{
  display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:var(--r-full);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);font-size:13.5px;color:rgba(255,255,255,.86);
}
.band-tags .tag .num{font-family:var(--font-mono);color:var(--accent-500);font-weight:700}

/* ---------- 适用场景 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.scene-card{
  grid-column:span 4;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh-1);transition:all var(--t);
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:var(--brand-300)}
.scene-card h3{font-size:18px;color:var(--text-900);font-weight:700;margin-bottom:10px}
.scene-card p{font-size:14.5px;line-height:1.8}
.scene-card .tagline{margin-top:16px;font-size:13px;font-weight:600;color:var(--brand-700);background:var(--brand-100);display:inline-block;padding:5px 12px;border-radius:var(--r-full)}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.faq-intro{grid-column:span 4}
.faq-intro h2{font-size:30px;line-height:1.32;color:var(--text-900);font-weight:800}
.faq-intro p{margin-top:14px;font-size:15px;line-height:1.85}
.faq-intro .btn{margin-top:22px}
.faq-list{grid-column:span 8;display:grid;gap:12px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);transition:all var(--t)}
.faq-item[open]{border-color:var(--brand-300);box-shadow:var(--sh-2)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--text-900);min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .plus{
  flex:none;width:28px;height:28px;border-radius:50%;background:var(--surface-2);color:var(--brand-700);
  display:grid;place-items:center;font-size:16px;font-weight:700;transition:transform var(--t),background var(--t),color var(--t);
}
.faq-item[open] summary .plus{transform:rotate(45deg);background:var(--accent-500);color:var(--brand-900)}
.faq-answer{padding:0 24px 22px 24px;border-left:3px solid transparent;font-size:15px;line-height:1.85;color:var(--text-600)}
.faq-item[open] .faq-answer{border-left-color:var(--brand-500);padding-left:21px}

/* ---------- CTA 表单 ---------- */
.cta-card{
  background:var(--grad-soft),var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);
  box-shadow:var(--sh-2);display:grid;grid-template-columns:repeat(12,1fr);gap:24px;padding:40px;
}
.cta-left{grid-column:span 5}
.cta-left h2{font-size:28px;line-height:1.35;color:var(--text-900);font-weight:800}
.cta-left p{margin-top:14px;font-size:15px;line-height:1.85}
.cta-left .badge{margin-top:20px}
.cta-form{grid-column:span 7;display:grid;gap:20px}
.field{display:grid;gap:8px}
.field label{font-size:14px;font-weight:600;color:var(--text-900)}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;border-radius:14px;border:1px solid var(--line);background:#fff;
  padding:12px 16px;font-size:15px;color:var(--text-900);transition:all var(--t);
}
.field textarea{min-height:104px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(30,138,112,.16);outline:none}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.check{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-600);line-height:1.7}
.check input{width:20px;height:20px;margin-top:3px;accent-color:var(--brand-500);flex:none}
.form-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;margin-top:0}
.footer-line{height:1px;background:linear-gradient(90deg,rgba(10,56,48,0),rgba(30,138,112,.55),rgba(198,242,78,.7),rgba(10,56,48,0))}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding:56px 0 36px}
.footer-col h4{font-size:16px;color:var(--text-900);font-weight:700;margin-bottom:16px}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:var(--text-600);max-width:340px}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social span{font-size:12px;font-weight:600;color:var(--brand-700);background:var(--brand-100);padding:5px 12px;border-radius:var(--r-full)}
.footer-col ul{display:grid;gap:12px}
.footer-col li{font-size:14.5px;color:var(--text-600)}
.footer-col a{color:var(--text-600)}
.footer-col a:hover{color:var(--brand-700)}
.footer-contact .k{color:var(--text-400)}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0 32px;display:flex;flex-wrap:wrap;
  align-items:center;justify-content:space-between;gap:14px;font-size:13.5px;color:var(--text-400);
}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:20px}
.footer-bottom a:hover{color:var(--brand-700)}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .search input{width:200px}
  .search input:focus{width:260px}
}
@media (max-width:1024px){
  .main-nav,.search{display:none}
  .nav-toggle{display:block}
  .drawer,.drawer-mask{display:block}
  .page-hero h1{font-size:34px}
  .entry-main,.entry-side{grid-column:span 12}
  .entry-side{position:static}
  .bento-big{grid-column:span 12;grid-template-columns:1fr}
  .bento-col{grid-column:span 12;grid-template-columns:1fr 1fr}
  .scene-card{grid-column:span 6}
  .faq-intro,.faq-list{grid-column:span 12}
  .cta-left,.cta-form{grid-column:span 12}
  .footer-top{grid-template-columns:1fr 1fr;padding:44px 0 28px}
}
@media (max-width:768px){
  section{padding:56px 0}
  .container{padding:0 20px}
  .page-hero-inner{padding:26px 0 44px;min-height:220px}
  .page-hero h1{font-size:28px}
  .page-hero .lead{font-size:16px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}
  .section-head h2,.faq-intro h2{font-size:22px}
  .step-card{padding:20px;gap:14px}
  .step-body h3{font-size:18px}
  .side-card,.mini-card,.scene-card{padding:20px}
  .bento-big .txt{padding:24px}
  .bento-col{grid-template-columns:1fr}
  .scene-card{grid-column:span 12}
  .compare{grid-template-columns:1fr}
  .compare-mid{height:1px;width:100%;background:linear-gradient(90deg,rgba(198,242,78,.7),rgba(198,242,78,.1))}
  .cta-card{padding:24px}
  .form-row{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr;gap:0}
  .footer-col{border-bottom:1px solid var(--line)}
  .footer-col h4{margin:0;padding:18px 0;min-height:48px;display:flex;align-items:center;cursor:pointer}
  .footer-col ul,.footer-brand p,.footer-social{padding-bottom:16px}
  .footer-col.collapsed ul,.footer-col.collapsed p,.footer-col.collapsed .footer-social{display:none}
}
@media (max-width:520px){
  .page-hero h1{font-size:25px}
  .topbar-msg{font-size:12px}
  .topbar-time{display:none}
  .btn{width:100%}
  .form-actions{flex-direction:column}
  .hero-chips .chip{font-size:12px}
}

/* roulang page: category2 */
:root{
  --brand-900:#0A3830;
  --brand-700:#115B4C;
  --brand-500:#1E8A70;
  --brand-300:#6FC7AE;
  --brand-100:#DFF3EC;
  --accent-500:#C6F24E;
  --accent-600:#A8DA2E;
  --data-500:#FF8A3D;
  --bg:#F7F6F2;
  --surface:#FFFFFF;
  --surface-2:#EFF3EE;
  --line:#E1E7E0;
  --text-900:#111A16;
  --text-600:#4C5A54;
  --text-400:#8A9791;
  --grad-brand:linear-gradient(135deg,#0A3830 0%,#17695A 52%,#2E9E7E 100%);
  --grad-accent:linear-gradient(120deg,#C6F24E 0%,#8FE07A 100%);
  --grad-soft:linear-gradient(180deg,rgba(30,138,112,.10),rgba(30,138,112,0));
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","SF Mono","Roboto Mono",ui-monospace,Consolas,monospace;
  --r-sm:10px; --r-md:16px; --r-lg:24px; --r-xl:32px; --r-full:999px;
  --sh-1:0 1px 2px rgba(10,56,48,.06);
  --sh-2:0 8px 24px rgba(10,56,48,.08);
  --sh-3:0 20px 48px rgba(10,56,48,.14);
  --ease:240ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;padding:0;background:var(--bg);color:var(--text-600);
  font-family:var(--font-sans);font-size:16px;line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease);}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
h1,h2,h3,h4{margin:0;color:var(--text-900);line-height:1.3;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.num,.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(30,138,112,.32);border-radius:var(--r-sm);}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ 顶部信息条 ============ */
.topbar{
  background:var(--brand-900);color:#CDE7DF;font-size:13px;
  height:36px;display:flex;align-items:center;
}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar .dot{width:7px;height:7px;border-radius:50%;background:var(--accent-500);display:inline-block;margin-right:8px;vertical-align:1px;box-shadow:0 0 0 4px rgba(198,242,78,.18);}
.topbar .tb-right{font-family:var(--font-mono);font-variant-numeric:tabular-nums;color:#9FD3C4;}

/* ============ 头部 / 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,246,242,.86);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.site-header.is-scrolled{background:rgba(255,255,255,.92);border-bottom-color:var(--line);box-shadow:var(--sh-1);}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;transition:height var(--ease);}
.site-header.is-scrolled .header-inner{height:64px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:32px;height:32px;border-radius:10px;background:var(--grad-brand);
  color:#DFF3EC;display:grid;place-items:center;font-weight:700;font-size:16px;
  box-shadow:var(--sh-1);flex-shrink:0;
}
.logo-text{font-size:17px;font-weight:700;color:var(--text-900);letter-spacing:-.2px;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-link{
  position:relative;padding:8px 12px;font-size:15px;font-weight:500;color:var(--text-600);
  border-radius:var(--r-sm);transition:color var(--ease),background var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--grad-accent);opacity:0;transform:scaleX(.4);transition:all var(--ease);
}
.nav-link:hover{color:var(--brand-700);background:var(--brand-100);}
.nav-link:hover::after{opacity:1;transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-700);font-weight:700;}
.nav-link.is-active::after{opacity:1;transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;width:240px;padding:0 14px;
  background:var(--surface-2);border-radius:var(--r-full);
  transition:width var(--ease),background var(--ease),box-shadow var(--ease);
}
.search-box:focus-within{width:320px;background:#fff;box-shadow:0 0 0 3px rgba(30,138,112,.28);}
.search-box input{flex:1;border:0;background:transparent;outline:none;font-size:14px;min-width:0;}
.search-box svg{flex-shrink:0;color:var(--text-400);}
.link-plain{font-size:15px;color:var(--text-600);padding:10px 6px;border-radius:var(--r-sm);}
.link-plain:hover{color:var(--brand-700);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-full);font-weight:600;letter-spacing:.2px;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),filter var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--grad-brand);color:#EAFBF5;padding:12px 22px;font-size:15px;
  box-shadow:0 6px 18px rgba(10,56,48,.20);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 26px rgba(10,56,48,.28);filter:brightness(1.06);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  border:1.5px solid var(--brand-500);color:var(--brand-700);padding:10px 20px;font-size:15px;background:transparent;
}
.btn-ghost:hover{background:var(--brand-100);}
.btn-accent{background:var(--grad-accent);color:#10321F;padding:12px 22px;font-size:15px;}
.btn-accent:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(198,242,78,.45);}
.btn-sm{padding:9px 16px;font-size:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-md);background:var(--surface-2);
  align-items:center;justify-content:center;color:var(--brand-700);
}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:84%;max-width:360px;background:#fff;z-index:90;
  transform:translateX(102%);transition:transform var(--ease);
  display:flex;flex-direction:column;padding:20px;box-shadow:var(--sh-3);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer .search-box{width:100%;margin-bottom:16px;}
.drawer-nav{display:flex;flex-direction:column;flex:1;}
.drawer-nav a{
  height:52px;display:flex;align-items:center;font-size:16px;font-weight:500;
  border-bottom:1px solid var(--line);color:var(--text-900);
}
.drawer-nav a.is-active{color:var(--brand-700);font-weight:700;}
.drawer-foot{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:16px;}
.overlay{
  position:fixed;inset:0;background:rgba(10,56,48,.36);z-index:80;opacity:0;visibility:hidden;
  transition:opacity var(--ease),visibility var(--ease);
}
.overlay.is-open{opacity:1;visibility:visible;}

/* ============ 页头 banner ============ */
.page-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#E6F4EE 0%,rgba(223,243,236,.35) 100%);
  padding:56px 0 52px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(30,138,112,.06) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(30,138,112,.06) 1px,transparent 1px);
  background-size:48px 48px;pointer-events:none;
}
.page-hero .container{position:relative;z-index:1;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-400);margin-bottom:18px;flex-wrap:wrap;}
.breadcrumb a:hover{color:var(--brand-700);}
.breadcrumb .sep{color:#BFCBC5;}
.breadcrumb .current{color:var(--text-600);}
.page-hero h1{font-size:42px;line-height:1.3;max-width:20em;}
.page-hero .lede{margin-top:16px;font-size:17px;max-width:760px;line-height:1.85;}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.chip-static{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:var(--r-full);
  background:rgba(255,255,255,.85);border:1px solid var(--line);font-size:13px;color:var(--brand-700);font-weight:600;
}
.chip-static .num{color:var(--text-400);font-weight:500;}

/* ============ 通用板块 ============ */
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.section-head{margin-bottom:40px;}
.section-head .kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--brand-700);text-transform:uppercase;margin-bottom:12px;
}
.section-head .kicker::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--grad-accent);}
.section-head h2{font-size:30px;line-height:1.35;}
.section-head p{margin-top:12px;font-size:16px;max-width:720px;line-height:1.85;}
.section-head.with-link{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.text-link{font-size:15px;font-weight:600;color:var(--brand-700);display:inline-flex;align-items:center;gap:6px;}
.text-link:hover{text-decoration:underline;text-underline-offset:3px;}

/* ============ 筛选条 + 指标徽章 ============ */
.filter-bar{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  padding:16px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);
}
.filter-label{font-size:14px;color:var(--text-400);font-weight:600;margin-right:4px;}
.filter-chip{
  height:38px;padding:0 16px;border-radius:var(--r-full);font-size:14px;font-weight:600;color:var(--text-600);
  background:var(--surface-2);transition:all var(--ease);
}
.filter-chip:hover{color:var(--brand-700);background:var(--brand-100);}
.filter-chip.is-active{background:var(--grad-brand);color:#EAFBF5;box-shadow:0 6px 16px rgba(10,56,48,.18);}
.filter-note{margin-left:auto;font-size:13px;color:var(--text-400);}
.metric-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:20px;}
.metric-pill{
  display:flex;align-items:center;gap:12px;padding:16px 18px;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease);
}
.metric-pill:hover{transform:translateY(-4px);box-shadow:var(--sh-2),0 0 0 4px rgba(30,138,112,.10);}
.metric-pill .badge-num{
  min-width:64px;height:30px;padding:0 10px;border-radius:var(--r-full);background:var(--accent-500);
  color:#0F2C21;font-weight:700;font-size:14px;display:grid;place-items:center;
}
.metric-pill .badge-num.alt{background:var(--surface-2);color:var(--brand-700);border:1px solid var(--line);}
.metric-pill .mp-text{font-size:13px;color:var(--text-400);line-height:1.5;}
.metric-pill .mp-text b{display:block;font-size:14px;color:var(--text-900);font-weight:600;}

/* ============ 数据表大卡 ============ */
.table-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);overflow:hidden;
}
.table-card-head{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 28px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,rgba(30,138,112,.06),transparent);
}
.table-card-head h3{font-size:20px;}
.table-card-head .stamp{font-family:var(--font-mono);font-size:13px;color:var(--text-400);}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
table{width:100%;border-collapse:collapse;min-width:840px;}
thead th{
  position:sticky;top:0;z-index:2;background:#EAF3EE;color:var(--brand-900);
  font-size:13px;font-weight:700;text-align:left;padding:14px 20px;white-space:nowrap;
  border-bottom:1px solid var(--line);
}
tbody td{
  padding:16px 20px;font-size:14px;border-bottom:1px solid var(--line);color:var(--text-600);vertical-align:middle;
}
tbody tr{transition:background var(--ease);}
tbody tr:hover{background:#F4F9F6;}
tbody tr:last-child td{border-bottom:0;}
td.strong{color:var(--text-900);font-weight:600;}
td .mono{font-size:14px;color:var(--text-900);}
.tag{
  display:inline-block;padding:3px 10px;border-radius:var(--r-full);font-size:12px;font-weight:600;
  background:var(--brand-100);color:var(--brand-700);
}
.tag.live{background:rgba(255,138,61,.14);color:#B4551B;}
.tag.done{background:var(--surface-2);color:var(--text-400);}
.trend{font-family:var(--font-mono);font-weight:700;font-size:13px;}
.trend.up{color:var(--data-500);}
.trend.flat{color:var(--text-400);}
.table-foot{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:18px 28px;background:var(--surface-2);font-size:13px;color:var(--text-400);
}
.sum-badges{display:flex;gap:10px;flex-wrap:wrap;}
.sum-badges span{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-full);padding:5px 12px;
  font-size:12px;color:var(--brand-700);font-weight:600;
}
.scroll-hint{display:none;font-size:12px;color:var(--text-400);padding:10px 20px 0;}

/* ============ 指标解读 bento ============ */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);padding:28px;
  transition:transform var(--ease),box-shadow var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-3),0 0 0 4px rgba(30,138,112,.10);}
.card h3{font-size:20px;margin-bottom:12px;}
.card p{font-size:15px;line-height:1.85;}
.bento .big{grid-column:span 8;padding:0;overflow:hidden;display:flex;flex-direction:column;}
.bento .big img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;}
.bento .big .big-body{padding:26px 28px 30px;}
.bento .small{grid-column:span 4;display:flex;flex-direction:column;gap:14px;}
.bento .small.card{padding:24px;}
.bento .small .mini-num{
  font-family:var(--font-mono);font-size:28px;font-weight:700;color:var(--brand-700);
}
.check-list{display:flex;flex-direction:column;gap:10px;margin-top:14px;}
.check-list li{display:flex;gap:10px;font-size:15px;line-height:1.7;}
.check-list li::before{
  content:"";width:8px;height:8px;border-radius:50%;background:var(--accent-600);flex-shrink:0;margin-top:9px;
}

/* ============ 更新节奏 ============ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.step{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;
  box-shadow:var(--sh-1);position:relative;overflow:hidden;
}
.step::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad-accent);}
.step .step-no{
  width:36px;height:36px;border-radius:50%;background:var(--grad-brand);color:#DFF3EC;
  display:grid;place-items:center;font-family:var(--font-mono);font-weight:700;font-size:15px;margin-bottom:16px;
}
.step h3{font-size:18px;margin-bottom:10px;}
.step p{font-size:15px;line-height:1.8;}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;position:relative;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--grad-accent);
  opacity:0;transition:opacity var(--ease);
}
.faq-item[open]::before{opacity:1;}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--text-900);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand-700);}
.faq-item .chev{
  width:26px;height:26px;border-radius:50%;background:var(--surface-2);color:var(--brand-700);
  display:grid;place-items:center;flex-shrink:0;transition:transform var(--ease),background var(--ease);
}
.faq-item[open] .chev{transform:rotate(45deg);background:var(--accent-500);color:#0F2C21;}
.faq-item .answer{padding:0 24px 22px;font-size:15px;line-height:1.85;}

/* ============ CTA ============ */
.cta{
  border-radius:var(--r-xl);padding:48px;background:var(--grad-soft),var(--surface);
  border:1px solid var(--line);box-shadow:var(--sh-2);
  display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center;
}
.cta h2{font-size:30px;line-height:1.35;}
.cta p{margin-top:14px;font-size:16px;line-height:1.85;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px;}
.cta-panel{
  background:var(--surface-2);border-radius:var(--r-lg);padding:26px;border:1px solid var(--line);
}
.cta-panel h3{font-size:18px;margin-bottom:14px;}
.cta-panel ul{display:flex;flex-direction:column;gap:12px;}
.cta-panel li{display:flex;justify-content:space-between;gap:12px;font-size:14px;padding-bottom:12px;border-bottom:1px dashed var(--line);}
.cta-panel li:last-child{border-bottom:0;padding-bottom:0;}
.cta-panel li b{color:var(--text-900);font-weight:600;}
.cta-panel li span{font-family:var(--font-mono);color:var(--brand-700);font-weight:700;}

/* ============ 页脚 ============ */
.site-footer{background:#0C2A24;color:#B9D2CA;margin-top:0;position:relative;}
.footer-line{height:1px;background:linear-gradient(90deg,transparent,var(--accent-500),transparent);}
.footer-top{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 44px;
}
.footer-col h4{color:#EAFBF5;font-size:15px;margin-bottom:18px;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{font-size:14px;color:#B9D2CA;}
.footer-col a:hover{color:var(--accent-500);}
.footer-brand .logo-text{color:#EAFBF5;}
.footer-brand p{font-size:14px;line-height:1.85;margin-top:16px;color:#9FBCB4;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.footer-social span{
  font-size:12px;padding:5px 12px;border-radius:var(--r-full);background:rgba(198,242,78,.12);
  color:var(--accent-500);font-weight:600;
}
.footer-contact li{font-size:14px;color:#9FBCB4;line-height:1.8;}
.footer-contact .k{color:#7FA79C;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:22px 0;display:flex;align-items:center;
  justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8FADA5;
}
.footer-bottom .links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-bottom .links a:hover{color:var(--accent-500);}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .bento .big{grid-column:span 7;}
  .bento .small{grid-column:span 5;}
}
@media (max-width:1024px){
  .main-nav,.header-actions .search-box,.header-actions .link-plain{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions{margin-left:auto;}
  .page-hero h1{font-size:34px;}
  .section{padding:72px 0;}
  .metric-row{grid-template-columns:repeat(2,1fr);}
  .bento .big,.bento .small{grid-column:span 12;}
  .steps{grid-template-columns:1fr;}
  .cta{grid-template-columns:1fr;padding:36px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 36px;}
}
@media (max-width:768px){
  .topbar{height:auto;padding:8px 0;font-size:12px;}
  .topbar .container{flex-direction:column;align-items:flex-start;gap:4px;}
  .header-inner{height:64px;gap:14px;}
  .logo-text{font-size:15px;}
  .page-hero{padding:40px 0 36px;}
  .page-hero h1{font-size:28px;}
  .page-hero .lede{font-size:15px;}
  .section{padding:56px 0;}
  .section-head h2{font-size:22px;}
  .card{padding:20px;}
  .table-card-head{padding:18px 20px;}
  .table-foot{padding:16px 20px;}
  .scroll-hint{display:block;}
  .footer-top{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .metric-row{grid-template-columns:1fr;}
  .btn{padding:12px 18px;font-size:14px;}
  .cta{padding:24px;}
  .cta h2{font-size:22px;}
}

/* roulang page: category3 */
:root{
  --brand-900:#0A3830;
  --brand-700:#115B4C;
  --brand-500:#1E8A70;
  --brand-300:#6FC7AE;
  --brand-100:#DFF3EC;
  --accent-500:#C6F24E;
  --accent-600:#A8DA2E;
  --data-500:#FF8A3D;
  --bg:#F7F6F2;
  --surface:#FFFFFF;
  --surface-2:#EFF3EE;
  --line:#E1E7E0;
  --text-900:#111A16;
  --text-600:#4C5A54;
  --text-400:#8A9791;
  --grad-brand:linear-gradient(135deg,#0A3830 0%,#17695A 52%,#2E9E7E 100%);
  --grad-accent:linear-gradient(120deg,#C6F24E 0%,#8FE07A 100%);
  --grad-soft:linear-gradient(180deg,rgba(30,138,112,.10),rgba(30,138,112,0));
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","SF Mono","Roboto Mono",ui-monospace,Consolas,monospace;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:32px;
  --r-full:999px;
  --sh-1:0 1px 2px rgba(10,56,48,.06);
  --sh-2:0 8px 24px rgba(10,56,48,.08);
  --sh-3:0 20px 48px rgba(10,56,48,.14);
  --ease:240ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--text-600);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-md)}
a{color:var(--brand-500);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--brand-700)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--text-900);line-height:1.3;font-weight:700}
p{margin:0}
:focus-visible{outline:3px solid rgba(30,138,112,.32);outline-offset:2px;border-radius:6px}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-head{max-width:760px;margin:0 auto 48px;text-align:center}
.section-head .eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.12em;color:var(--brand-500);background:var(--brand-100);border-radius:var(--r-full);padding:6px 14px;margin-bottom:16px}
.section-head h2{font-size:30px;margin-bottom:14px}
.section-head p{font-size:16px;color:var(--text-600)}
.left-head{max-width:none;margin:0 0 40px;text-align:left}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--brand-900);color:rgba(255,255,255,.82);font-size:13px}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;height:36px}
.topbar strong{color:var(--accent-500);font-weight:600}
.topbar .stamp{font-family:var(--font-mono);font-variant-numeric:tabular-nums;color:rgba(255,255,255,.6)}

/* ---------- 头部与导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:transparent;transition:background var(--ease),box-shadow var(--ease),height var(--ease)}
.site-header .header-inner{display:flex;align-items:center;gap:24px;height:72px;transition:height var(--ease)}
.site-header.is-scrolled{background:rgba(255,255,255,.92);backdrop-filter:blur(12px);box-shadow:0 1px 0 var(--line),var(--sh-1)}
.site-header.is-scrolled .header-inner{height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:32px;height:32px;border-radius:var(--r-sm);
  background:var(--grad-brand);color:#fff;
  display:grid;place-items:center;font-weight:700;font-size:16px;
  box-shadow:var(--sh-2);
}
.logo-text{font-size:17px;font-weight:700;letter-spacing:-.2px;color:var(--text-900)}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--text-600);padding:6px 0}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;background:var(--grad-accent);transform:scaleX(0);transform-origin:left;transition:transform var(--ease)}
.nav-link:hover{color:var(--brand-500)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-700);font-weight:700}
.nav-link.is-active::after{transform:scaleX(1)}
.header-tools{margin-left:auto;display:flex;align-items:center;gap:14px}
.search-box{display:flex;align-items:center;gap:8px;width:240px;height:40px;padding:0 16px;background:var(--surface-2);border-radius:var(--r-full);border:1px solid transparent;transition:width var(--ease),background var(--ease),border-color var(--ease),box-shadow var(--ease)}
.search-box:focus-within{width:320px;background:var(--surface);border-color:var(--brand-300);box-shadow:0 0 0 3px rgba(30,138,112,.14)}
.search-box svg{flex-shrink:0;color:var(--text-400)}
.search-box input{width:100%;border:0;background:transparent;outline:none;font-size:14px;color:var(--text-900)}
.search-box input::placeholder{color:var(--text-400)}
.ghost-link{font-size:15px;color:var(--text-600);padding:8px 4px;border-radius:8px}
.ghost-link:hover{color:var(--brand-500)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;border-radius:var(--r-full);padding:0 22px;height:44px;transition:transform var(--ease),box-shadow var(--ease),filter var(--ease),background var(--ease),color var(--ease)}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--sh-3),0 0 0 4px rgba(30,138,112,.10);filter:brightness(1.06);color:#fff}
.btn-primary:active{transform:translateY(1px)}
.btn-accent{background:var(--grad-accent);color:var(--brand-900);box-shadow:var(--sh-2)}
.btn-accent:hover{transform:translateY(-1px);box-shadow:var(--sh-3),0 0 0 4px rgba(198,242,78,.22);color:var(--brand-900)}
.btn-outline{border:1.5px solid var(--brand-500);color:var(--brand-700);background:transparent}
.btn-outline:hover{background:var(--brand-100);color:var(--brand-900)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-block{width:100%}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-500)}
.text-link:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;place-items:center;color:var(--brand-700);background:var(--surface-2)}
.nav-toggle svg{display:block}
.drawer{position:fixed;top:0;right:0;bottom:0;width:84%;max-width:360px;background:var(--surface);z-index:90;transform:translateX(102%);transition:transform var(--ease);box-shadow:var(--sh-3);display:flex;flex-direction:column;padding:20px;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer-mask{position:fixed;inset:0;background:rgba(10,56,48,.36);opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);z-index:80}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:var(--surface-2);color:var(--brand-700)}
.drawer nav{display:flex;flex-direction:column;margin:8px 0 20px}
.drawer nav a{display:flex;align-items:center;min-height:52px;font-size:16px;font-weight:500;color:var(--text-900);border-bottom:1px solid var(--line)}
.drawer nav a.is-active{color:var(--brand-500);font-weight:700}
.drawer-foot{display:flex;gap:12px;margin-top:auto;padding-top:16px}
.drawer-foot .btn{flex:1}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  background:var(--grad-brand);
  padding:64px 0 72px;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 78% 30%,rgba(0,0,0,.9),transparent 68%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1}
.crumbs{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.62);margin-bottom:22px;flex-wrap:wrap}
.crumbs a{color:rgba(255,255,255,.72)}
.crumbs a:hover{color:#fff}
.crumbs .sep{opacity:.5}
.crumbs .current{color:#fff;font-weight:600}
.page-hero h1{font-size:42px;color:#fff;max-width:900px;margin-bottom:16px}
.page-hero p.lead{font-size:17px;color:rgba(255,255,255,.84);max-width:680px;margin-bottom:26px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{display:inline-flex;align-items:center;gap:6px;height:32px;padding:0 14px;border-radius:var(--r-full);font-size:13px;font-weight:600;background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.22)}
.chip-lime{background:var(--accent-500);color:var(--brand-900);border-color:transparent}

/* ---------- 指标条 ---------- */
.metrics{padding:0 0 8px;margin-top:-40px}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.metric-card{position:relative;background:var(--surface);border-radius:20px;padding:24px;box-shadow:var(--sh-2);overflow:hidden;transition:transform var(--ease),box-shadow var(--ease)}
.metric-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad-accent)}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3)}
.metric-card .val{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:38px;font-weight:700;color:var(--text-900);line-height:1.1}
.metric-card .val span{font-size:15px;color:var(--text-400);margin-left:4px;font-weight:500}
.metric-card .lab{margin-top:8px;font-size:14px;color:var(--text-600)}
.trend{display:inline-flex;align-items:center;gap:4px;margin-top:12px;font-size:12px;font-weight:600;color:var(--data-500);background:rgba(255,138,61,.12);border-radius:var(--r-full);padding:3px 10px}

/* ---------- 时间线 ---------- */
.timeline-wrap{position:relative}
.timeline{position:relative;padding:8px 0}
.timeline::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;transform:translateX(-50%);background:linear-gradient(180deg,rgba(111,199,174,.95),rgba(111,199,174,.12))}
.tl-item{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 88px minmax(0,1fr);align-items:center;margin-bottom:28px}
.tl-node{
  grid-column:2;grid-row:1;justify-self:center;
  width:52px;height:52px;border-radius:50%;
  background:var(--grad-brand);color:#fff;
  display:grid;place-items:center;
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:15px;font-weight:700;
  box-shadow:0 0 0 6px rgba(30,138,112,.10),var(--sh-2);
  z-index:2;
}
.tl-card{grid-row:1;display:flex;gap:20px;background:var(--surface);border-radius:var(--r-lg);box-shadow:var(--sh-2);padding:22px;transition:transform var(--ease),box-shadow var(--ease)}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3),0 0 0 4px rgba(30,138,112,.10)}
.tl-item:nth-child(odd) .tl-card{grid-column:1;flex-direction:row-reverse}
.tl-item:nth-child(even) .tl-card{grid-column:3;flex-direction:row}
.tl-media{flex:0 0 42%;overflow:hidden;border-radius:var(--r-md)}
.tl-media img{width:100%;height:100%;min-height:150px;object-fit:cover;transition:transform var(--ease)}
.tl-card:hover .tl-media img{transform:scale(1.04)}
.tl-body{flex:1;min-width:0}
.tl-body h3{font-size:20px;margin-bottom:8px}
.tl-body p{font-size:15px;color:var(--text-600);margin-bottom:12px}
.tl-list li{position:relative;padding-left:18px;font-size:14px;color:var(--text-600);line-height:1.85}
.tl-list li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;background:var(--brand-300)}

/* ---------- 适用场景 bento ---------- */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.bento-lg{grid-column:span 8;display:flex;flex-direction:column;overflow:hidden;background:var(--surface);border-radius:var(--r-lg);box-shadow:var(--sh-2);transition:transform var(--ease),box-shadow var(--ease)}
.bento-sm{grid-column:span 4;display:flex;flex-direction:column;background:var(--surface);border-radius:var(--r-lg);box-shadow:var(--sh-2);padding:28px;transition:transform var(--ease),box-shadow var(--ease)}
.bento-lg:hover,.bento-sm:hover{transform:translateY(-4px);box-shadow:var(--sh-3)}
.bento-lg .media{position:relative;aspect-ratio:16/9;overflow:hidden}
.bento-lg .media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform var(--ease)}
.bento-lg:hover .media img{transform:scale(1.04)}
.bento-lg .body{padding:26px 28px 28px}
.bento-lg h3{font-size:24px;margin-bottom:10px}
.bento-lg p{font-size:15px;margin-bottom:18px}
.bento-sm h3{font-size:20px;margin-bottom:10px}
.bento-sm p{font-size:15px;margin-bottom:16px}
.bento-sm .icon{width:44px;height:44px;border-radius:14px;background:var(--brand-100);color:var(--brand-700);display:grid;place-items:center;margin-bottom:18px}
.bento-sm.accent{background:var(--grad-soft),var(--surface)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-full);font-size:12px;font-weight:600;background:var(--surface-2);color:var(--brand-700)}

/* ---------- 对比区 ---------- */
.compare{background:var(--surface);border-radius:var(--r-xl);box-shadow:var(--sh-2);padding:48px;display:grid;grid-template-columns:1fr 1px 1fr;gap:40px;align-items:start}
.compare h3{font-size:22px;margin-bottom:18px;display:flex;align-items:center;gap:10px}
.compare .dot{width:10px;height:10px;border-radius:50%;background:var(--text-400)}
.compare .dot.good{background:var(--brand-500)}
.compare ul li{position:relative;padding-left:26px;margin-bottom:14px;font-size:15px;line-height:1.8}
.compare ul li::before{content:"";position:absolute;left:0;top:11px;width:14px;height:2px;border-radius:2px;background:var(--text-400)}
.compare .right ul li::before{background:var(--brand-500);top:9px;width:16px;height:8px;border-radius:2px;opacity:.35}
.compare .divider{width:1px;height:100%;background:linear-gradient(180deg,rgba(30,138,112,0),var(--brand-300),rgba(30,138,112,0))}
.compare-summary{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:40px}
.badge{display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 16px;border-radius:var(--r-full);font-size:13px;font-weight:600;background:var(--brand-100);color:var(--brand-700)}
.badge b{font-family:var(--font-mono);font-variant-numeric:tabular-nums;color:var(--text-900)}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{position:relative;background:var(--surface);border-radius:var(--r-md);box-shadow:var(--sh-1);border:1px solid var(--line);overflow:hidden;transition:box-shadow var(--ease),border-color var(--ease)}
.faq-item[open]{box-shadow:var(--sh-2);border-color:var(--brand-300)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px 20px 28px;font-size:17px;font-weight:600;color:var(--text-900);min-height:44px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .plus{position:relative;flex-shrink:0;width:22px;height:22px;transition:transform var(--ease)}
.faq-item summary .plus::before,.faq-item summary .plus::after{content:"";position:absolute;background:var(--brand-500);border-radius:2px}
.faq-item summary .plus::before{left:0;right:0;top:10px;height:2px}
.faq-item summary .plus::after{top:0;bottom:0;left:10px;width:2px}
.faq-item[open] summary .plus{transform:rotate(45deg)}
.faq-item[open] summary::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;background:var(--grad-accent)}
.faq-answer{padding:0 28px 22px;font-size:15px;line-height:1.85;color:var(--text-600)}

/* ---------- CTA 表单 ---------- */
.cta-card{background:var(--grad-soft),var(--surface);border-radius:var(--r-xl);box-shadow:var(--sh-2);padding:48px;display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.cta-card h2{font-size:30px;margin-bottom:14px}
.cta-card p{font-size:16px;margin-bottom:20px}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;margin-bottom:12px}
.cta-points svg{flex-shrink:0;margin-top:5px;color:var(--brand-500)}
.form-grid{display:flex;flex-direction:column;gap:20px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--text-900);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 16px;border-radius:14px;
  border:1px solid var(--line);background:var(--surface);color:var(--text-900);
  transition:border-color var(--ease),box-shadow var(--ease);outline:none;
}
.field textarea{height:auto;min-height:112px;padding:12px 16px;resize:vertical;line-height:1.75}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(30,138,112,.16)}
.segment{display:flex;flex-wrap:wrap;gap:10px}
.segment label{display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 16px;border-radius:var(--r-full);border:1.5px solid var(--line);background:var(--surface);font-size:14px;font-weight:500;color:var(--text-600);cursor:pointer;transition:all var(--ease)}
.segment input{position:absolute;opacity:0;width:0;height:0}
.segment label:hover{border-color:var(--brand-300);color:var(--brand-700)}
.segment input:checked + span{color:var(--brand-900);font-weight:700}
.segment label:has(input:checked){background:var(--brand-100);border-color:var(--brand-500)}
.check{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--text-600)}
.check input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand-500)}
.form-actions{display:flex;gap:14px;flex-wrap:wrap}
.form-note{font-size:13px;color:var(--text-400)}
.form-alert{display:none;border-radius:14px;padding:12px 16px;font-size:14px;background:var(--brand-100);color:var(--brand-700);font-weight:600}
.form-alert.is-visible{display:block}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--surface);margin-top:96px;padding-top:0}
.footer-line{height:1px;background:linear-gradient(90deg,rgba(30,138,112,0),var(--brand-300),rgba(30,138,112,0))}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 40px}
.footer-brand .logo{margin-bottom:16px}
.footer-col p{font-size:14px;line-height:1.85;color:var(--text-600);max-width:320px}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--text-900)}
.footer-col ul li{margin-bottom:12px}
.footer-col ul a{font-size:14px;color:var(--text-600)}
.footer-col ul a:hover{color:var(--brand-500)}
.footer-contact li{font-size:14px;color:var(--text-600)}
.footer-contact .k{color:var(--text-400)}
.footer-social{display:flex;gap:8px;margin-top:18px}
.footer-social span{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-full);background:var(--surface-2);font-size:12px;font-weight:600;color:var(--brand-700)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid var(--line);padding:22px 0;font-size:13px;color:var(--text-400)}
.footer-bottom .links{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom .links a{color:var(--text-400);font-size:13px}
.footer-bottom .links a:hover{color:var(--brand-500)}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .page-hero h1{font-size:36px}
  .bento-lg{grid-column:span 12}
  .bento-sm{grid-column:span 6}
}
@media (max-width:1024px){
  .main-nav,.header-tools .search-box,.ghost-link{display:none}
  .nav-toggle{display:grid}
  .header-tools{margin-left:auto}
  .section{padding:72px 0}
  .metric-grid{grid-template-columns:repeat(2,1fr)}
  .cta-card{grid-template-columns:1fr;gap:32px;padding:36px}
  .compare{grid-template-columns:1fr;gap:28px;padding:32px}
  .compare .divider{width:100%;height:1px;background:linear-gradient(90deg,rgba(30,138,112,0),var(--brand-300),rgba(30,138,112,0))}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .page-hero{padding:44px 0 56px}
  .page-hero h1{font-size:28px}
  .page-hero p.lead{font-size:16px}
  .section{padding:56px 0}
  .section-head h2{font-size:22px}
  .section-head{margin-bottom:32px}
  .metrics{margin-top:-28px}
  .metric-grid{gap:16px}
  .metric-card{padding:20px}
  .metric-card .val{font-size:30px}
  .bento-sm{grid-column:span 12}
  .timeline::before{left:20px;transform:none}
  .tl-item{grid-template-columns:1fr;gap:0;margin-bottom:20px;padding-left:56px}
  .tl-node{position:absolute;left:0;top:6px;grid-column:1;justify-self:start;width:40px;height:40px;font-size:13px}
  .tl-item:nth-child(odd) .tl-card,
  .tl-item:nth-child(even) .tl-card{grid-column:1;flex-direction:column}
  .tl-media{flex:none}
  .tl-media img{min-height:0;aspect-ratio:16/9}
  .tl-card{padding:18px}
  .faq-item summary{padding:16px 18px 16px 20px;font-size:16px}
  .faq-answer{padding:0 20px 18px}
  .cta-card{padding:24px}
  .cta-card h2{font-size:22px}
  .footer-top{grid-template-columns:1fr;gap:0;padding:40px 0 20px}
  .footer-col{border-bottom:1px solid var(--line)}
  .footer-col h4{margin:0;padding:18px 0;font-size:16px}
  .footer-col ul,.footer-col p{display:block;padding-bottom:16px}
  .footer-brand{padding-top:8px}
  .footer-brand .logo{margin:16px 0}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px}
}
@media (max-width:520px){
  .topbar .container{height:auto;padding:8px 20px;flex-direction:column;align-items:flex-start;gap:2px}
  .hero-chips .chip{height:28px;font-size:12px}
  .metric-grid{grid-template-columns:1fr 1fr}
  .metric-card .val{font-size:26px}
  .footer-social{flex-wrap:wrap}
}

/* roulang page: category4 */
:root{
  --brand-900:#0A3830;
  --brand-700:#115B4C;
  --brand-500:#1E8A70;
  --brand-300:#6FC7AE;
  --brand-100:#DFF3EC;
  --accent-500:#C6F24E;
  --accent-600:#A8DA2E;
  --data-500:#FF8A3D;
  --bg:#F7F6F2;
  --surface:#FFFFFF;
  --surface-2:#EFF3EE;
  --line:#E1E7E0;
  --text-900:#111A16;
  --text-600:#4C5A54;
  --text-400:#8A9791;
  --grad-brand:linear-gradient(135deg,#0A3830 0%,#17695A 52%,#2E9E7E 100%);
  --grad-accent:linear-gradient(120deg,#C6F24E 0%,#8FE07A 100%);
  --grad-soft:linear-gradient(180deg,rgba(30,138,112,.10),rgba(30,138,112,0));
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","SF Mono","Roboto Mono",ui-monospace,Consolas,monospace;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:32px;
  --r-full:999px;
  --sh-1:0 1px 2px rgba(10,56,48,.06);
  --sh-2:0 8px 24px rgba(10,56,48,.08);
  --sh-3:0 20px 48px rgba(10,56,48,.14);
  --tr:240ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--text-600);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none}
input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--text-900);font-weight:700;line-height:1.3;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(30,138,112,.32);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ===== 顶部信息条 ===== */
.topbar{height:36px;background:var(--brand-900);display:flex;align-items:center}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:100%}
.topbar-note{font-size:12px;color:rgba(255,255,255,.76);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-time{font-family:var(--font-mono);font-size:12px;font-variant-numeric:tabular-nums;color:var(--accent-500)}
.topbar-time::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent-500);margin-right:8px;vertical-align:middle}

/* ===== 页头与导航 ===== */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--tr),height var(--tr);
  height:72px;
}
.site-header.is-scrolled{height:64px;box-shadow:var(--sh-2)}
.header-inner{display:flex;align-items:center;gap:20px;height:100%}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:32px;height:32px;border-radius:10px;background:var(--grad-brand);
  color:var(--accent-500);font-family:var(--font-mono);font-weight:700;font-size:17px;
  display:flex;align-items:center;justify-content:center;flex:none;
}
.logo-text{font-size:17px;font-weight:700;color:var(--text-900);letter-spacing:-.2px;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 12px;
  font-size:15px;font-weight:500;color:var(--text-600);border-radius:10px;
  transition:color var(--tr),background var(--tr);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:6px;height:2px;border-radius:2px;
  background:var(--grad-accent);transform:scaleX(0);transform-origin:left center;
  transition:transform var(--tr);
}
.nav-link:hover{color:var(--brand-700);background:var(--surface-2)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-700);font-weight:700}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{
  position:relative;display:flex;align-items:center;width:240px;height:40px;
  background:var(--surface-2);border:1px solid transparent;border-radius:var(--r-full);
  transition:width var(--tr),background var(--tr),box-shadow var(--tr);
}
.nav-search::before{
  content:"";position:absolute;left:14px;top:50%;width:13px;height:13px;margin-top:-8px;
  border:2px solid var(--text-400);border-radius:50%;
}
.nav-search::after{
  content:"";position:absolute;left:25px;top:50%;width:7px;height:2px;margin-top:5px;
  background:var(--text-400);border-radius:2px;transform:rotate(45deg);
}
.nav-search input{
  width:100%;height:100%;padding:0 16px 0 38px;border:0;outline:0;background:transparent;
  font-size:14px;color:var(--text-900);
}
.nav-search input::placeholder{color:var(--text-400)}
.nav-search:focus-within{width:320px;background:#fff;box-shadow:0 0 0 3px rgba(30,138,112,.32)}
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 20px;border-radius:var(--r-full);
  background:var(--grad-accent);color:#0A3830;font-size:15px;font-weight:700;
  box-shadow:0 4px 14px rgba(198,242,78,.34);
  transition:transform var(--tr),box-shadow var(--tr),filter var(--tr);
  white-space:nowrap;
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 8px 22px rgba(198,242,78,.46);filter:brightness(1.05)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  display:inline-flex;align-items:center;height:40px;padding:0 10px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--text-600);transition:color var(--tr),background var(--tr);
}
.btn-ghost:hover{color:var(--brand-700);background:var(--surface-2)}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-full);
  border:1.5px solid var(--brand-500);color:var(--brand-700);font-size:15px;font-weight:600;
  background:transparent;transition:background var(--tr),color var(--tr),transform var(--tr);
}
.btn-outline:hover{background:var(--brand-100);transform:translateY(-1px)}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;align-items:center;justify-content:center;
  background:var(--surface-2);margin-left:auto;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--brand-900);border-radius:2px;position:relative}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-900);border-radius:2px;
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}

/* ===== 移动抽屉 ===== */
.drawer-mask{
  position:fixed;inset:0;background:rgba(10,56,48,.36);z-index:190;
  opacity:0;pointer-events:none;transition:opacity var(--tr);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.nav-drawer{
  position:fixed;top:0;right:0;height:100%;width:84%;max-width:360px;z-index:200;
  background:#fff;box-shadow:var(--sh-3);display:flex;flex-direction:column;gap:16px;
  padding:20px;overflow-y:auto;transform:translateX(102%);transition:transform var(--tr);
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:44px;height:44px;border-radius:12px;background:var(--surface-2);font-size:20px;color:var(--brand-900);line-height:1}
.drawer-search{display:flex;align-items:center;height:48px;border-radius:var(--r-full);background:var(--surface-2);padding:0 18px}
.drawer-search input{width:100%;border:0;outline:0;background:transparent;font-size:15px;color:var(--text-900)}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{
  display:flex;align-items:center;min-height:52px;padding:0 12px;border-radius:12px;
  font-size:16px;font-weight:500;color:var(--text-600);border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--brand-700);font-weight:700;background:var(--brand-100)}
.drawer-actions{display:flex;gap:10px;margin-top:auto;padding-top:12px}
.drawer-actions .btn-primary,.drawer-actions .btn-outline{flex:1}

/* ===== 页面头图 ===== */
.page-hero{
  position:relative;overflow:hidden;background:var(--grad-brand);
  padding:56px 0 60px;min-height:262px;display:flex;align-items:center;
}
.page-hero-bg{
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.14;
}
.page-hero::after{
  content:"";position:absolute;right:-60px;bottom:-50px;width:460px;height:230px;
  background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.9) 0 1px,transparent 1px 26px);
  opacity:.07;border-radius:50% 50% 0 0;
}
.page-hero-inner{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.7);margin-bottom:18px;flex-wrap:wrap}
.breadcrumb a{color:rgba(255,255,255,.72);transition:color var(--tr)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{color:rgba(255,255,255,.42)}
.breadcrumb .current{color:#fff}
.page-hero h1{
  color:#fff;font-size:clamp(28px,4vw,42px);line-height:1.25;letter-spacing:-.02em;max-width:820px;
}
.page-hero p.lead{
  margin-top:16px;max-width:660px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.82);
}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.chip{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:var(--r-full);
  font-size:13px;font-weight:600;background:rgba(255,255,255,.14);color:#EAF7F2;
  border:1px solid rgba(255,255,255,.22);
}
.chip.accent{background:var(--accent-500);color:#0A3830;border-color:var(--accent-500)}

/* ===== 搜索条 ===== */
.hero-search{
  display:flex;align-items:center;gap:10px;max-width:640px;margin-top:26px;
  background:#fff;border-radius:var(--r-full);padding:8px 8px 8px 22px;box-shadow:var(--sh-3);
}
.hero-search input{
  flex:1;min-width:0;height:44px;border:0;outline:0;background:transparent;
  font-size:15px;color:var(--text-900);
}
.hero-search input::placeholder{color:var(--text-400)}
.hero-search .btn-primary{height:44px;padding:0 24px}

/* ===== 板块 ===== */
.section{padding:96px 0}
.section.tight{padding:56px 0 80px}
.section-head{max-width:760px;margin-bottom:40px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  color:var(--brand-700);letter-spacing:.06em;text-transform:uppercase;margin-bottom:12px;
}
.section-head .eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad-accent)}
.section-head h2{font-size:clamp(22px,3vw,30px)}
.section-head p{margin-top:12px;font-size:16px;color:var(--text-600)}

/* ===== FAQ 分组 ===== */
.faq-group{margin-bottom:48px}
.faq-group[hidden]{display:none}
.faq-group-head{display:flex;align-items:center;gap:14px;margin-bottom:18px}
.group-index{
  font-family:var(--font-mono);font-size:14px;font-weight:700;color:#0A3830;
  background:var(--grad-accent);width:38px;height:38px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;flex:none;
  font-variant-numeric:tabular-nums;
}
.faq-group-head h2{font-size:clamp(20px,2.4vw,24px)}
.faq-group-head .count{
  margin-left:auto;font-family:var(--font-mono);font-size:13px;color:var(--text-400);
  font-variant-numeric:tabular-nums;
}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  margin-bottom:12px;box-shadow:var(--sh-1);overflow:hidden;
  transition:box-shadow var(--tr),border-color var(--tr);
}
.faq-item:hover{border-color:var(--brand-300);box-shadow:var(--sh-2)}
.faq-item[open]{border-color:var(--brand-300);box-shadow:var(--sh-2)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px 18px 26px;cursor:pointer;list-style:none;position:relative;
  transition:background var(--tr);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;
  background:var(--grad-brand);opacity:0;transition:opacity var(--tr);
}
.faq-item[open] summary::before{opacity:1}
.faq-item summary:hover{background:var(--surface-2)}
.faq-q{font-size:17px;font-weight:600;color:var(--text-900);line-height:1.6}
.faq-icon{
  position:relative;width:28px;height:28px;flex:none;border-radius:var(--r-full);
  background:var(--surface-2);transition:transform var(--tr),background var(--tr);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;width:12px;height:2px;border-radius:2px;
  background:var(--brand-700);transform:translate(-50%,-50%);
}
.faq-icon::after{transform:translate(-50%,-50%) rotate(90deg)}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--accent-500)}
.faq-a{padding:0 22px 20px 26px;font-size:15px;line-height:1.85;color:var(--text-600)}
.faq-item[open] .faq-a{animation:fadeSlide .24s ease}
@keyframes fadeSlide{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}
.faq-a p+p{margin-top:10px}
.faq-empty{
  display:none;padding:26px;border-radius:var(--r-md);background:var(--surface-2);
  color:var(--text-400);font-size:15px;text-align:center;border:1px dashed var(--line);
}
.faq-empty.is-show{display:block}

/* ===== 联系 CTA 条 ===== */
.cta-bar{
  display:grid;grid-template-columns:200px 1fr auto;align-items:center;gap:32px;
  background:var(--grad-soft),var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-2);
}
.cta-media{position:relative;overflow:hidden;border-radius:var(--r-md);aspect-ratio:16/10}
.cta-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--tr)}
.cta-bar:hover .cta-media img{transform:scale(1.04)}
.cta-copy h2{font-size:clamp(20px,2.4vw,24px)}
.cta-copy p{margin-top:10px;font-size:15px;color:var(--text-600);max-width:520px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ===== 表单 ===== */
.form-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px;box-shadow:var(--sh-2);margin-top:32px;
}
.form-card h3{font-size:20px}
.form-card .hint{margin-top:8px;font-size:14px;color:var(--text-400)}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:24px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1/-1}
.field label{font-size:14px;font-weight:600;color:var(--text-900)}
.field input,.field select,.field textarea{
  height:48px;border-radius:14px;border:1px solid var(--line);background:var(--surface-2);
  padding:0 16px;font-size:15px;color:var(--text-900);outline:0;
  transition:border-color var(--tr),background var(--tr),box-shadow var(--tr);width:100%;
}
.field textarea{height:120px;padding:14px 16px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  background:#fff;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(30,138,112,.32);
}
.check-line{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-600);grid-column:1/-1}
.check-line input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand-500);flex:none}
.form-foot{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:8px;grid-column:1/-1}
.form-note{font-size:13px;color:var(--text-400)}

/* ===== 页脚 ===== */
.site-footer{position:relative;background:var(--surface);padding:64px 0 28px;margin-top:24px}
.footer-line{position:absolute;top:0;left:0;right:0;height:1px;background:var(--grad-brand)}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px}
.footer-col h4{font-size:15px;color:var(--text-900);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:14px;color:var(--text-600);line-height:1.7}
.footer-col a{transition:color var(--tr)}
.footer-col a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
.footer-brand p{margin-top:14px;font-size:14px;color:var(--text-600);max-width:340px}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social span{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-full);
  background:var(--brand-100);color:var(--brand-700);font-size:12px;font-weight:600;
}
.footer-contact .k{color:var(--text-400)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-400);
}
.footer-bottom .links{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom .links a:hover{color:var(--brand-700)}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .footer-top{grid-template-columns:1.5fr 1fr 1fr;gap:32px}
  .footer-contact{grid-column:1/-1}
}
@media (max-width:1023px){
  .main-nav,.nav-actions{display:none}
  .menu-toggle{display:flex}
  .container{padding:0 20px}
  .section{padding:64px 0}
  .cta-bar{grid-template-columns:1fr;gap:20px}
  .cta-media{aspect-ratio:16/9;max-height:220px}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px}
  .footer-brand{grid-column:1/-1}
}
@media (max-width:767px){
  .topbar-note{max-width:62%}
  .page-hero{padding:40px 0 44px;min-height:auto}
  .page-hero h1{font-size:26px}
  .page-hero p.lead{font-size:15px}
  .hero-search{flex-direction:column;align-items:stretch;border-radius:var(--r-lg);padding:12px}
  .hero-search input{height:44px;padding:0 8px}
  .hero-search .btn-primary{width:100%}
  .section{padding:56px 0}
  .faq-group-head .count{display:none}
  .faq-q{font-size:16px}
  .faq-a{padding:0 18px 18px 22px}
  .form-card{padding:22px}
  .form-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:519px){
  .logo-text{font-size:15px}
  .topbar-time{font-size:11px}
  .cta-actions .btn-primary,.cta-actions .btn-outline{width:100%}
}