/* roulang page: index */
:root{
  --ink:#0C1F1B; --ink-2:#123B33; --brand:#1F7A5C; --lime:#C9F26B; --amber:#FF7A2F;
  --bg:#F5F7F2; --surface:#FFFFFF; --surface-2:#EAF0E7; --line:#D8E0D6;
  --text:#121A17; --text-2:#4C5A55; --text-3:#86928C;
  --r-lg:28px; --r-md:20px; --r-sm:14px; --r-xs:12px;
  --sh-1:0 1px 2px rgba(12,31,27,.06), 0 12px 32px -12px rgba(12,31,27,.18);
  --sh-2:0 20px 48px -16px rgba(12,31,27,.28);
  --grad:linear-gradient(135deg,#0C1F1B 0%,#175645 55%,#2C8A63 100%);
  --grad-accent:linear-gradient(100deg,#C9F26B 0%,#7FE0A6 100%);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);font-size:16px;line-height:1.8;
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0;padding:0}
li{list-style:none}
.tnum{font-variant-numeric:tabular-nums}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (min-width:1440px){.container{max-width:1280px}}
@media (max-width:640px){.container{padding:0 20px}}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(245,247,242,.82);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-bar{height:64px;display:flex;align-items:center;gap:20px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:11px;background:var(--ink);
  display:grid;place-items:center;color:var(--lime);flex-shrink:0;
}
.brand-name{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-links a{
  position:relative;padding:8px 13px;border-radius:10px;font-size:14.5px;
  color:var(--text-2);transition:color .22s var(--ease),background .22s var(--ease);
}
.nav-links a:hover{color:var(--ink);background:var(--surface-2)}
.nav-links a.active{color:var(--ink);font-weight:600}
.nav-links a.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:1px;height:2px;
  border-radius:2px;background:var(--lime);
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.search-box{
  display:flex;align-items:center;gap:8px;width:238px;height:40px;padding:0 10px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xs);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.search-box:focus-within{border-color:var(--lime);box-shadow:0 0 0 4px rgba(201,242,107,.35)}
.search-box input{border:0;outline:0;background:transparent;flex:1;min-width:0;font-size:14px}
.search-box input::placeholder{color:var(--text-3)}
.kbd{
  font-size:11px;line-height:1;padding:4px 6px;border-radius:6px;background:var(--surface-2);
  color:var(--text-3);border:1px solid var(--line);white-space:nowrap;
}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-xs);border:1px solid var(--line);
  background:var(--surface);display:grid;place-items:center;color:var(--text-2);
  transition:all .22s var(--ease);
}
.icon-btn:hover{color:var(--ink);border-color:var(--brand);background:var(--surface-2)}
.icon-btn:active{transform:translateY(1px)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-sm);border:1.5px solid transparent;
  font-size:15px;font-weight:700;letter-spacing:.01em;cursor:pointer;
  transition:all .22s var(--ease);white-space:nowrap;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--lime);color:var(--ink);box-shadow:0 6px 18px -8px rgba(12,31,27,.45)}
.btn-primary:hover{background:#d6f783;box-shadow:var(--sh-2);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 2px 8px -4px rgba(12,31,27,.4)}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:rgba(31,122,92,.08);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:var(--ink-2);transform:translateY(-1px)}
.btn:focus-visible,.icon-btn:focus-visible,a:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.btn-block{width:100%}

.nav-toggle{display:none;width:40px;height:40px;border-radius:var(--r-xs);border:1px solid var(--line);background:var(--surface);color:var(--ink)}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;margin:3px auto}

.drawer{
  position:fixed;inset:64px 0 0 0;z-index:70;background:var(--grad);
  padding:28px 20px 40px;overflow-y:auto;transform:translateY(-12px);opacity:0;
  pointer-events:none;transition:opacity .26s var(--ease),transform .26s var(--ease);
}
.drawer.open{opacity:1;transform:translateY(0);pointer-events:auto}
.drawer .search-box{width:100%;margin-bottom:20px;background:rgba(255,255,255,.94)}
.drawer-nav a{
  display:block;padding:16px 4px;color:#fff;font-size:17px;font-weight:600;
  border-bottom:1px solid rgba(255,255,255,.14);
}
.drawer-nav a.active{color:var(--lime)}
.drawer .btn{margin-top:24px;width:100%}

/* ---------- Hero ---------- */
.hero{padding:64px 0 84px;position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;top:-160px;right:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,242,107,.42) 0%,rgba(201,242,107,0) 68%);
  pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1.34fr) minmax(0,1fr);gap:52px;align-items:center}
.live-strip{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);font-size:13px;color:var(--text-2);
  font-variant-numeric:tabular-nums;margin-bottom:20px;
}
.live-strip .dot{width:8px;height:8px;border-radius:50%;background:#37B26E;box-shadow:0 0 0 0 rgba(55,178,110,.6);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 9px rgba(55,178,110,0)}100%{box-shadow:0 0 0 0 rgba(55,178,110,0)}}
.live-strip .sep{color:var(--line)}
.hero-title{
  font-size:clamp(34px,5vw,56px);line-height:1.12;font-weight:800;letter-spacing:-.02em;color:var(--ink);
}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.75;color:var(--text-2);max-width:540px}
.hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px}
.hero-badges{margin-top:34px;display:flex;flex-wrap:wrap;gap:12px}
.mini-badge{
  display:flex;align-items:baseline;gap:8px;padding:10px 16px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--sh-1);
}
.mini-badge strong{font-size:20px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums}
.mini-badge strong em{font-style:normal;font-size:12px;font-weight:600;margin-left:1px}
.mini-badge span{font-size:13px;color:var(--text-3)}
.hero-visual{
  position:relative;border-radius:var(--r-lg);overflow:hidden;min-height:440px;
  display:flex;align-items:flex-end;padding:24px;box-shadow:var(--sh-1);
}
.hero-visual-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center}
.hero-visual-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(155deg,rgba(12,31,27,.80) 0%,rgba(23,86,69,.64) 58%,rgba(44,138,99,.48) 100%);
}
.hero-float-card{
  position:relative;z-index:2;width:100%;background:var(--surface);border-radius:var(--r-md);
  padding:14px;box-shadow:var(--sh-2);
}
.hero-float-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-sm)}
.hero-float-meta{display:flex;gap:10px;margin-top:12px}
.hero-float-meta div{flex:1;background:var(--surface-2);border-radius:var(--r-xs);padding:10px 12px}
.hero-float-meta strong{display:block;font-size:19px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums}
.hero-float-meta span{font-size:12.5px;color:var(--text-3)}

/* ---------- Section ---------- */
.section{padding:88px 0}
.section-alt{background:var(--surface-2)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-title{font-size:clamp(26px,3vw,38px);line-height:1.25;font-weight:800;letter-spacing:-.015em;color:var(--ink)}
.section-sub{margin-top:10px;font-size:15.5px;color:var(--text-2);max-width:640px}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:700;font-size:15px;transition:color .22s var(--ease)}
.text-link span{transition:transform .22s var(--ease)}
.text-link:hover{color:var(--ink-2)}
.text-link:hover span{transform:translateX(4px)}
.text-link-light{color:var(--lime)}
.text-link-light:hover{color:#fff}

.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:700;line-height:1.5}
.badge-lime{background:var(--lime);color:var(--ink)}
.badge-line{border:1.5px solid var(--brand);color:var(--brand);background:transparent}
.badge-soft{background:var(--surface-2);color:var(--text-2)}
.badge-amber{border:1.5px solid var(--amber);color:var(--amber);background:transparent}

/* ---------- KPI ---------- */
.kpi-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.kpi-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 24px 22px;box-shadow:var(--sh-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.kpi-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.kpi-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.kpi-dot{width:34px;height:34px;border-radius:10px;background:var(--surface-2);display:grid;place-items:center;color:var(--brand)}
.kpi-value{font-size:clamp(36px,3.6vw,48px);line-height:1.1;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.kpi-unit{font-size:16px;font-weight:700;margin-left:3px;color:var(--text-2)}
.kpi-label{margin-top:8px;font-size:15px;font-weight:600;color:var(--text)}
.kpi-note{margin-top:4px;font-size:13px;color:var(--text-3)}
.kpi-bar{margin-top:18px;height:4px;border-radius:99px;background:var(--surface-2);overflow:hidden}
.kpi-bar i{display:block;height:100%;border-radius:99px;background:var(--grad-accent)}

/* ---------- Bento services ---------- */
.bento{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:24px}
.span-5{grid-column:span 5}
.span-7{grid-column:span 7}
.span-6{grid-column:span 6}
.service-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:28px;display:flex;flex-direction:column;gap:12px;
  box-shadow:var(--sh-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.service-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.service-icon{width:44px;height:44px;border-radius:13px;background:var(--surface-2);display:grid;place-items:center;color:var(--brand)}
.service-card h3{font-size:22px;line-height:1.35;font-weight:800;color:var(--ink)}
.service-card p{font-size:15px;line-height:1.8;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.service-card .text-link{margin-top:auto;padding-top:6px}
.service-card-hero{
  background:var(--grad);background-image:var(--grad);border-color:transparent;color:#fff;
  position:relative;overflow:hidden;min-height:280px;
}
.service-card-hero::after{
  content:"";position:absolute;top:-70px;right:-70px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,242,107,.35) 0%,rgba(201,242,107,0) 70%);
}
.service-card-hero h3,.service-card-hero .service-title{color:#fff;font-size:26px;font-weight:800;line-height:1.32;position:relative}
.service-card-hero p{color:rgba(255,255,255,.82);-webkit-line-clamp:3}
.service-card-hero .service-icon{background:rgba(255,255,255,.12);color:var(--lime);position:relative}
.service-stats{display:flex;gap:10px;margin-top:auto;padding-top:14px;position:relative;flex-wrap:wrap}
.service-stats b{background:rgba(255,255,255,.14);border-radius:999px;padding:5px 12px;font-size:12.5px;font-weight:700;color:#fff}

/* ---------- Compare ---------- */
.compare-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;display:grid;grid-template-columns:1fr 1fr;box-shadow:var(--sh-1);
}
.compare-col{padding:34px 32px}
.compare-old{background:var(--surface-2)}
.compare-new{background:var(--grad);color:#fff}
.compare-col h3{font-size:22px;font-weight:800;line-height:1.35;margin-bottom:6px}
.compare-new h3{color:#fff}
.compare-col .compare-note{font-size:13.5px;color:var(--text-3);margin-bottom:22px}
.compare-new .compare-note{color:rgba(255,255,255,.66)}
.compare-list li{display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed var(--line);align-items:flex-start}
.compare-new .compare-list li{border-bottom-color:rgba(255,255,255,.18)}
.compare-list li:last-child{border-bottom:0}
.cmp-dot{width:20px;height:20px;border-radius:50%;background:var(--line);flex-shrink:0;margin-top:4px;position:relative}
.cmp-dot::after{content:"";position:absolute;inset:7px;border-radius:50%;background:var(--text-3)}
.cmp-check{width:20px;height:20px;border-radius:50%;background:var(--lime);flex-shrink:0;margin-top:4px;position:relative}
.cmp-check::after{
  content:"";position:absolute;left:6px;top:4px;width:6px;height:10px;
  border-right:2px solid var(--ink);border-bottom:2px solid var(--ink);transform:rotate(42deg);
}
.cmp-body{flex:1;min-width:0}
.cmp-body strong{display:block;font-size:15.5px;font-weight:700}
.compare-new .cmp-body strong{color:#fff}
.cmp-body span{font-size:13.5px;color:var(--text-3)}
.compare-new .cmp-body span{color:rgba(255,255,255,.72)}
.cmp-bar{margin-top:10px;height:6px;border-radius:99px;background:rgba(255,255,255,.18);overflow:hidden}
.cmp-bar i{display:block;height:100%;border-radius:99px;background:var(--grad-accent);width:var(--w,80%)}

/* ---------- News / CMS ---------- */
.news-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:28px;align-items:start}
.news-lead{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.news-lead:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.news-media{position:relative;overflow:hidden}
.news-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s var(--ease)}
.news-lead:hover .news-media img{transform:scale(1.03)}
.news-media .badge{position:absolute;top:14px;left:14px;background:var(--surface);box-shadow:var(--sh-1)}
.news-lead-body{padding:24px 26px 26px}
.news-lead-body h3{font-size:23px;line-height:1.4;font-weight:800;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-lead-body p{
  margin-top:12px;font-size:15px;color:var(--text-2);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{margin-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13.5px;color:var(--text-3)}
.news-meta time{font-variant-numeric:tabular-nums}
.news-list{display:flex;flex-direction:column;gap:16px}
.news-item{
  display:flex;gap:16px;align-items:center;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:16px;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.news-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.news-item img{width:104px;height:78px;object-fit:cover;border-radius:var(--r-sm);flex-shrink:0}
.news-item-body{flex:1;min-width:0}
.news-item-body h3{font-size:16px;font-weight:700;color:var(--ink);line-height:1.5;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-item-body p{margin-top:6px;font-size:13.5px;color:var(--text-3);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-item-body .news-meta{margin-top:8px;justify-content:flex-start;gap:10px}
.news-arrow{width:32px;height:32px;border-radius:50%;background:var(--surface-2);display:grid;place-items:center;color:var(--brand);flex-shrink:0;transition:all .22s var(--ease)}
.news-item:hover .news-arrow{background:var(--lime);color:var(--ink)}
.empty-state{
  border:1.5px dashed var(--line);border-radius:var(--r-md);background:var(--surface);
  padding:56px 24px;text-align:center;color:var(--text-3);
}
.empty-state p{font-size:15px;margin-bottom:16px}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px;margin:0 auto}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;transition:box-shadow .22s var(--ease),border-color .22s var(--ease)}
.faq-item.open{box-shadow:var(--sh-1);border-color:#C6D6C9}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:transparent;border:0;text-align:left;cursor:pointer;
}
.faq-q span{font-size:18px;font-weight:600;color:var(--ink);line-height:1.5}
.faq-icon{
  width:30px;height:30px;border-radius:50%;background:var(--surface-2);flex-shrink:0;position:relative;
  transition:background .22s var(--ease);
}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:9px;top:14px;width:12px;height:2px;background:var(--ink);border-radius:2px;transition:transform .26s var(--ease)}
.faq-icon::after{transform:rotate(90deg)}
.faq-item.open .faq-icon{background:var(--lime)}
.faq-item.open .faq-icon::after{transform:rotate(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease)}
.faq-item.open .faq-a{max-height:360px}
.faq-a-inner{padding:0 24px 22px 24px;border-left:2px solid var(--line);margin-left:24px;padding-left:18px;color:var(--text-2);font-size:15px;line-height:1.85}

/* ---------- CTA / Form ---------- */
.cta-card{
  border-radius:var(--r-lg);overflow:hidden;display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1fr);
  box-shadow:var(--sh-1);background:var(--surface);border:1px solid var(--line);
}
.cta-info{background:var(--grad);color:#fff;padding:44px 40px;position:relative;overflow:hidden}
.cta-info::after{
  content:"";position:absolute;top:-80px;right:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,242,107,.35) 0%,rgba(201,242,107,0) 70%);
}
.cta-info h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:800;position:relative}
.cta-points{margin-top:22px;display:flex;flex-direction:column;gap:12px;position:relative}
.cta-points li{display:flex;gap:10px;font-size:14.5px;line-height:1.7;color:rgba(255,255,255,.88)}
.cta-points li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--lime);margin-top:9px;flex-shrink:0}
.cta-contact{margin-top:28px;padding-top:22px;border-top:1px solid rgba(255,255,255,.18);display:flex;flex-direction:column;gap:12px;position:relative}
.cta-contact li{display:flex;align-items:center;gap:10px;font-size:14.5px;color:rgba(255,255,255,.86);font-variant-numeric:tabular-nums}
.cta-contact svg{flex-shrink:0;color:var(--lime)}
.form-card{padding:40px}
.form-card h3{font-size:22px;font-weight:800;color:var(--ink);margin-bottom:6px}
.form-card .form-hint{font-size:13.5px;color:var(--text-3);margin-bottom:22px}
.form-field{margin-bottom:16px}
.form-field label{display:block;font-size:13.5px;font-weight:600;color:var(--text-2);margin-bottom:7px}
.form-field input,.form-field textarea,.form-field select{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-xs);border:1px solid var(--line);
  background:var(--surface);font-size:15px;outline:0;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.form-field textarea{height:104px;padding:12px 14px;resize:vertical;line-height:1.7}
.form-field input:focus,.form-field textarea:focus,.form-field select:focus{
  border-color:var(--lime);box-shadow:0 0 0 4px rgba(201,242,107,.35);
}
.chip-group{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;align-items:center;padding:9px 16px;border-radius:999px;
  border:1px solid var(--line);background:var(--surface);font-size:14px;color:var(--text-2);cursor:pointer;
  transition:all .22s var(--ease);
}
.chip:hover{border-color:var(--brand);color:var(--ink)}
.chip input{position:absolute;opacity:0;pointer-events:none}
.chip:has(input:checked){background:var(--lime);border-color:var(--lime);color:var(--ink);font-weight:700}
.form-agree{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--text-3);line-height:1.7;margin:6px 0 18px}
.form-agree input{width:16px;height:16px;margin-top:4px;accent-color:var(--brand);flex-shrink:0}
.form-msg{margin-top:14px;font-size:14px;color:var(--brand);font-weight:600;display:none}
.form-msg.show{display:block}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);margin-top:0;position:relative}
.site-footer::before{content:"";display:block;height:4px;background:var(--grad-accent)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding:64px 0 40px}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-mark{background:rgba(255,255,255,.1);color:var(--lime)}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:320px}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a,.footer-col li{font-size:14px;color:rgba(255,255,255,.66);transition:color .22s var(--ease)}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 30px;text-align:center;
  font-size:13px;color:rgba(255,255,255,.5);font-variant-numeric:tabular-nums;
}

/* ---------- Responsive ---------- */
@media (max-width:1280px){
  .search-box{width:200px}
  .nav-links a{padding:8px 10px;font-size:14px}
}
@media (max-width:1024px){
  .nav-links{display:none}
  .search-box{display:none}
  .nav-toggle{display:block}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual{min-height:340px}
  .kpi-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .span-5,.span-7,.span-6{grid-column:span 6}
  .news-grid{grid-template-columns:1fr}
  .cta-card{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .section{padding:64px 0}
  .hero{padding:44px 0 64px}
  .compare-card{grid-template-columns:1fr}
  .compare-new{border-top:2px solid var(--lime)}
  .compare-col{padding:28px 22px}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
  .cta-info,.form-card{padding:30px 22px}
  .hero-float-meta{flex-direction:row;flex-wrap:wrap}
}
@media (max-width:640px){
  .kpi-grid{grid-template-columns:1fr}
  .span-5,.span-7,.span-6{grid-column:span 12}
  .service-card,.kpi-card{padding:18px}
  .news-item img{width:84px;height:64px}
  .faq-q{padding:16px 18px}
  .faq-a-inner{margin-left:18px;padding-left:14px;padding-right:18px}
  .footer-grid{grid-template-columns:1fr;padding:48px 0 32px}
  .brand-name{font-size:15.5px}
  .hero-actions .btn{flex:1}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --ink:#0C1F1B;
  --ink-2:#123B33;
  --brand:#1F7A5C;
  --lime:#C9F26B;
  --amber:#FF7A2F;
  --bg:#F5F7F2;
  --surface:#FFFFFF;
  --surface-2:#EAF0E7;
  --line:#D8E0D6;
  --text:#121A17;
  --text-2:#4C5A55;
  --text-3:#86928C;
  --grad-brand:linear-gradient(135deg,#0C1F1B 0%,#175645 55%,#2C8A63 100%);
  --grad-lime:linear-gradient(100deg,#C9F26B 0%,#7FE0A6 100%);
  --radius-lg:28px;
  --radius:20px;
  --radius-sm:14px;
  --shadow:0 1px 2px rgba(12,31,27,.06),0 12px 32px -12px rgba(12,31,27,.18);
  --shadow-hover:0 20px 48px -16px rgba(12,31,27,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1160px;margin:0 auto;padding:0 32px;}
@media (min-width:1440px){.container{max-width:1240px;}}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(245,247,242,.82);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-bar{display:flex;align-items:center;gap:20px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;color:var(--ink);letter-spacing:-.01em;flex:none;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:var(--grad-brand);color:var(--lime);flex:none;
  box-shadow:0 6px 16px -6px rgba(12,31,27,.5);
}
.brand-name{white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:2px;}
.nav-links a{
  position:relative;display:inline-block;padding:9px 13px;border-radius:10px;
  font-size:14.5px;font-weight:600;color:var(--text-2);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-links a:hover{color:var(--ink);background:rgba(31,122,92,.08);}
.nav-links a.active{color:var(--ink);}
.nav-links a.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;
  border-radius:2px;background:var(--lime);
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.search-box{
  display:flex;align-items:center;gap:8px;width:240px;height:40px;padding:0 10px 0 12px;
  background:var(--surface);border:1px solid var(--line);border-radius:999px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-box:focus-within{border-color:var(--lime);box-shadow:0 0 0 4px rgba(201,242,107,.35);}
.search-box input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:13.5px;}
.search-box input::placeholder{color:var(--text-3);}
.kbd{
  font-size:11px;color:var(--text-3);background:var(--surface-2);
  border:1px solid var(--line);border-radius:6px;padding:2px 6px;white-space:nowrap;
}
.icon-btn{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--line);background:var(--surface);color:var(--ink-2);
  transition:.2s var(--ease);
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:rgba(31,122,92,.06);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-sm);font-weight:700;cursor:pointer;border:0;
  transition:transform .18s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-lg{padding:15px 28px;font-size:15.5px;}
.btn-primary{background:var(--grad-lime);color:var(--ink);box-shadow:0 10px 26px -12px rgba(44,138,99,.7);}
.btn-primary:hover{filter:brightness(1.06);box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);filter:brightness(.97);}
.btn-ghost{background:transparent;color:var(--brand);border:1.5px solid var(--brand);}
.btn-ghost:hover{background:rgba(31,122,92,.09);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);flex-direction:column;justify-content:center;align-items:center;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:16px;height:2px;border-radius:2px;background:var(--ink);transition:.2s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.mobile-drawer{
  position:fixed;left:0;right:0;top:64px;bottom:0;z-index:65;
  background:var(--grad-brand);padding:24px 20px 40px;overflow-y:auto;
  display:none;flex-direction:column;gap:20px;
}
.mobile-drawer.open{display:flex;}
.mobile-drawer .search-box{width:100%;background:rgba(255,255,255,.94);}
.mobile-drawer nav{display:flex;flex-direction:column;gap:6px;}
.mobile-drawer nav a{
  padding:14px 16px;border-radius:14px;color:rgba(255,255,255,.88);
  font-size:16px;font-weight:600;border:1px solid rgba(255,255,255,.14);
  transition:.2s var(--ease);
}
.mobile-drawer nav a:hover,.mobile-drawer nav a.active{background:rgba(201,242,107,.16);color:#fff;border-color:rgba(201,242,107,.4);}
.mobile-drawer .btn{width:100%;}

/* ============ 文章头部 ============ */
.article-hero{position:relative;background:var(--grad-brand);color:#fff;padding:52px 0 66px;overflow:hidden;}
.article-hero::before{
  content:"";position:absolute;inset:0;opacity:.45;
  background-image:linear-gradient(rgba(255,255,255,.09) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.09) 1px,transparent 1px);
  background-size:48px 48px;
}
.article-hero::after{
  content:"";position:absolute;right:-140px;top:-160px;width:440px;height:440px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,242,107,.34),transparent 66%);
}
.hero-inner{position:relative;z-index:2;max-width:860px;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;margin-bottom:22px;}
.crumbs a{
  color:rgba(255,255,255,.78);padding:5px 12px;border-radius:999px;
  border:1px solid rgba(255,255,255,.2);transition:.2s var(--ease);
}
.crumbs a:hover{color:var(--lime);border-color:rgba(201,242,107,.55);background:rgba(201,242,107,.08);}
.crumbs .sep{color:rgba(255,255,255,.38);font-size:12px;}
.crumbs .current{color:#fff;font-weight:600;}
.article-h1{
  font-size:clamp(28px,4vw,44px);line-height:1.22;font-weight:800;letter-spacing:-.02em;
  color:#fff;margin-bottom:22px;
}
.hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;border-radius:999px;
  font-size:12.5px;font-weight:700;padding:5px 12px;white-space:nowrap;
}
.badge-lime{background:var(--lime);color:var(--ink);}
.badge-outline{border:1px solid rgba(255,255,255,.34);color:rgba(255,255,255,.9);font-weight:600;}
.badge-solid{background:var(--surface-2);color:var(--text-2);font-weight:600;}
.badge-brand{border:1px solid var(--brand);color:var(--brand);background:rgba(31,122,92,.06);}
.badge-amber{border:1px solid var(--amber);color:var(--amber);background:rgba(255,122,47,.07);}
.num{font-variant-numeric:tabular-nums;}

/* ============ 文章布局 ============ */
.article-wrap{padding:56px 0 96px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px;align-items:start;}
.article-main{min-width:0;}
.cover-frame{
  border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  background:var(--surface);box-shadow:var(--shadow);margin-bottom:36px;
}
.cover-frame img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.article-body{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:40px 44px;box-shadow:var(--shadow);
  font-size:17px;line-height:1.85;color:var(--text);
}
.article-body > * + *{margin-top:18px;}
.article-body h2{
  position:relative;font-size:26px;line-height:1.4;font-weight:800;color:var(--ink);
  padding-left:16px;margin-top:40px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:3px;background:var(--lime);
}
.article-body h3{font-size:21px;line-height:1.45;font-weight:700;color:var(--ink);margin-top:32px;}
.article-body h4{font-size:18px;font-weight:700;color:var(--ink-2);margin-top:24px;}
.article-body p{margin:0;}
.article-body a{color:var(--brand);font-weight:600;text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--ink-2);}
.article-body strong{color:var(--ink);font-weight:700;}
.article-body blockquote{
  margin:26px 0;padding:18px 24px;background:#EDF6F0;border-left:4px solid var(--brand);
  border-radius:0 16px 16px 0;color:var(--text-2);font-size:16px;
}
.article-body blockquote p{color:var(--text-2);}
.article-body ul,.article-body ol{padding-left:26px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-top:8px;}
.article-body ul li::marker{color:var(--brand);}
.article-body ol li::marker{color:var(--brand);font-weight:700;}
.article-body hr{border:0;height:1px;background:var(--line);margin:34px 0;}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--line);
  border-radius:16px;overflow:hidden;font-size:15.5px;margin:26px 0;
}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;}
.article-body thead th{background:var(--surface-2);font-weight:700;color:var(--ink);}
.article-body tbody tr:nth-child(even){background:#FAFBF7;}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body img{border-radius:16px;margin:6px 0;}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13.5px;color:var(--text-3);text-align:center;margin-top:10px;line-height:1.7;}
.article-body code{
  background:var(--surface-2);border-radius:6px;padding:2px 6px;font-size:14.5px;
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
}

/* ============ 文末区域 ============ */
.article-foot{
  margin-top:28px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);
}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:22px;}
.tag-row .tag-label{font-size:13.5px;color:var(--text-3);font-weight:600;margin-right:2px;}
.tag-row a{
  font-size:13px;font-weight:600;color:var(--text-2);background:var(--surface-2);
  border-radius:999px;padding:6px 14px;transition:.2s var(--ease);
}
.tag-row a:hover{background:var(--lime);color:var(--ink);transform:translateY(-1px);}
.foot-split{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;border-top:1px solid var(--line);padding-top:20px;}
.share-group{display:flex;align-items:center;gap:10px;}
.share-group span{font-size:13.5px;color:var(--text-3);font-weight:600;}
.share-btn{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--line);background:var(--surface);color:var(--text-2);transition:.2s var(--ease);
}
.share-btn:hover{border-color:var(--brand);color:var(--brand);background:rgba(31,122,92,.07);transform:translateY(-2px);}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:22px;}
.pager a{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 20px;transition:.22s var(--ease);box-shadow:var(--shadow);
}
.pager a:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(31,122,92,.4);}
.pager .pager-label{font-size:12.5px;color:var(--text-3);font-weight:700;letter-spacing:.04em;}
.pager .pager-title{font-size:15.5px;font-weight:700;color:var(--ink);margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.back-list{
  display:inline-flex;align-items:center;gap:8px;margin-top:26px;font-size:14.5px;
  font-weight:700;color:var(--brand);
}
.back-list svg{transition:transform .2s var(--ease);}
.back-list:hover svg{transform:translateX(-4px);}

/* ============ 相关推荐 ============ */
.related{margin-top:44px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;}
.section-head h2{font-size:clamp(22px,2.4vw,28px);font-weight:800;color:var(--ink);letter-spacing:-.01em;}
.section-head .more{font-size:14.5px;font-weight:700;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.section-head .more svg{transition:transform .2s var(--ease);}
.section-head .more:hover svg{transform:translateX(4px);}
.card-grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.post-thumb{position:relative;overflow:hidden;}
.post-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s var(--ease);}
.post-card:hover .post-thumb img{transform:scale(1.03);}
.post-thumb .badge{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.94);color:var(--brand);border:1px solid rgba(31,122,92,.25);}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-body h3{
  font-size:17px;line-height:1.45;font-weight:700;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-body p{
  font-size:14px;line-height:1.7;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;padding-top:6px;}
.post-meta time{font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.post-link{font-size:13.5px;font-weight:700;color:var(--brand);display:inline-flex;align-items:center;gap:5px;}
.post-link svg{transition:transform .2s var(--ease);}
.post-card:hover .post-link svg{transform:translateX(4px);}

/* ============ 侧栏 ============ */
.article-side{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow);
}
.side-card h3{font-size:15px;font-weight:800;color:var(--ink);margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--lime);}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-list a{
  display:block;font-size:14px;color:var(--text-2);padding:8px 10px;border-radius:10px;
  border-left:2px solid transparent;transition:.2s var(--ease);
}
.toc-list a:hover{background:var(--surface-2);color:var(--ink);border-left-color:var(--brand);}
.hot-list{display:flex;flex-direction:column;gap:12px;}
.hot-list a{display:flex;gap:12px;align-items:flex-start;transition:.2s var(--ease);}
.hot-list a:hover .hot-title{color:var(--brand);}
.hot-list .hot-idx{
  flex:none;width:22px;height:22px;border-radius:7px;display:grid;place-items:center;
  font-size:12px;font-weight:800;background:var(--surface-2);color:var(--text-2);
  font-variant-numeric:tabular-nums;margin-top:2px;
}
.hot-list a:nth-child(-n+2) .hot-idx{background:var(--lime);color:var(--ink);}
.hot-title{
  font-size:14px;line-height:1.55;font-weight:600;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s var(--ease);
}
.side-cta{background:var(--grad-brand);color:#fff;border:0;position:relative;overflow:hidden;}
.side-cta::after{
  content:"";position:absolute;right:-70px;bottom:-80px;width:200px;height:200px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,242,107,.34),transparent 66%);
}
.side-cta h3{color:#fff;position:relative;z-index:1;}
.side-cta h3::before{background:var(--lime);}
.side-cta p{position:relative;z-index:1;font-size:14px;line-height:1.75;color:rgba(255,255,255,.82);margin-bottom:16px;}
.side-cta .btn{position:relative;z-index:1;width:100%;}

/* ============ 空态 ============ */
.empty-state{
  background:var(--surface);border:1.5px dashed var(--line);border-radius:var(--radius);
  padding:56px 28px;text-align:center;box-shadow:var(--shadow);
}
.empty-state img{width:100%;max-width:320px;margin:0 auto 22px;border-radius:var(--radius-sm);opacity:.9;}
.empty-state h2{font-size:24px;font-weight:800;color:var(--ink);margin-bottom:10px;}
.empty-state p{font-size:15px;color:var(--text-2);margin-bottom:22px;}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;background:var(--ink);color:rgba(255,255,255,.72);
  padding:64px 0 26px;margin-top:0;
}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--grad-lime);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:36px;}
.footer-brand .brand{color:#fff;margin-bottom:14px;}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.64);max-width:340px;}
.footer-col h4{font-size:15px;font-weight:800;color:#fff;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a,.footer-col li{font-size:14px;line-height:1.6;color:rgba(255,255,255,.66);transition:color .2s var(--ease);}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding-top:20px;text-align:center;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav-links{display:none;}
  .search-box{display:none;}
  .nav-toggle{display:flex;}
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .article-side{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .card-grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .article-hero{padding:36px 0 46px;}
  .article-wrap{padding:36px 0 64px;}
  .article-body{padding:26px 22px;font-size:16px;line-height:1.85;}
  .article-body h2{font-size:22px;margin-top:32px;}
  .article-body h3{font-size:19px;}
  .pager{grid-template-columns:1fr;}
  .card-grid-3{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:640px){
  .brand-name{font-size:15px;}
  .nav-right .btn-order{display:none;}
  .footer-grid{grid-template-columns:1fr;}
  .article-body table{font-size:14px;}
  .article-body th,.article-body td{padding:10px 12px;}
  .foot-split{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --ink:#0C1F1B;
  --ink-2:#123B33;
  --brand:#1F7A5C;
  --brand-soft:rgba(31,122,92,.08);
  --lime:#C9F26B;
  --amber:#FF7A2F;
  --bg:#F5F7F2;
  --surface:#FFFFFF;
  --surface-2:#EAF0E7;
  --line:#D8E0D6;
  --text:#121A17;
  --text-2:#4C5A55;
  --text-3:#86928C;
  --grad-brand:linear-gradient(135deg,#0C1F1B 0%,#175645 55%,#2C8A63 100%);
  --grad-lime:linear-gradient(100deg,#C9F26B 0%,#7FE0A6 100%);
  --r-xl:28px;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:12px;
  --shadow-card:0 1px 2px rgba(12,31,27,.06), 0 12px 32px -12px rgba(12,31,27,.18);
  --shadow-hover:0 20px 48px -16px rgba(12,31,27,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0}
p{margin:0}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px}
@media (min-width:1440px){.container{max-width:1280px}}
@media (max-width:768px){.container{padding-left:20px;padding-right:20px}}
.section{padding-top:96px;padding-bottom:96px}
@media (max-width:768px){.section{padding-top:64px;padding-bottom:64px}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-md);
  font-size:15px;font-weight:700;letter-spacing:.01em;cursor:pointer;
  border:1.5px solid transparent;transition:all 220ms var(--ease);white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:3px}
.btn-primary{background:var(--lime);color:var(--ink);box-shadow:0 6px 18px -8px rgba(12,31,27,.5)}
.btn-primary:hover{filter:brightness(1.06);box-shadow:0 14px 30px -10px rgba(12,31,27,.5);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-light{background:#fff;color:var(--ink);border-color:transparent}
.btn-light:hover{background:#F2F7EE;transform:translateY(-2px)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn-outline-light:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:var(--r-sm)}
.text-link{color:var(--brand);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:6px}
.text-link svg{transition:transform 220ms var(--ease)}
.text-link:hover svg{transform:translateX(4px)}
.text-link:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}

/* ============ 徽章 ============ */
.badge{display:inline-flex;align-items:center;gap:6px;border-radius:999px;font-size:12.5px;font-weight:600;line-height:1;padding:7px 12px}
.badge-lime{background:var(--lime);color:var(--ink)}
.badge-outline{border:1px solid var(--brand);color:var(--brand);background:rgba(255,255,255,.7)}
.badge-muted{background:var(--surface-2);color:var(--text-2)}
.badge-amber{border:1px solid var(--amber);color:var(--amber);background:rgba(255,122,47,.08)}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(245,247,242,.82);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-bar{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--grad-brand);color:var(--lime);box-shadow:0 6px 16px -8px rgba(12,31,27,.6);
}
.brand-name{font-size:16.5px;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
.nav-links{display:flex;align-items:center;gap:22px;margin-left:8px}
.nav-links a{position:relative;font-size:14.5px;color:var(--text-2);padding:6px 0;transition:color 180ms var(--ease)}
.nav-links a:hover{color:var(--ink)}
.nav-links a.active{color:var(--ink);font-weight:700}
.nav-links a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-19px;height:2px;background:var(--lime);border-radius:2px;
}
.nav-links a:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{
  display:flex;align-items:center;gap:8px;width:240px;height:40px;padding:0 12px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  transition:all 200ms var(--ease);
}
.search-box:focus-within{border-color:var(--lime);box-shadow:0 0 0 4px rgba(201,242,107,.45)}
.search-box input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:13.5px;color:var(--text)}
.search-box input::placeholder{color:var(--text-3)}
.kbd{font-size:11.5px;color:var(--text-3);background:var(--surface-2);border:1px solid var(--line);border-radius:999px;padding:2px 7px;line-height:1.4}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);background:var(--surface);
  display:inline-flex;align-items:center;justify-content:center;color:var(--text-2);transition:all 200ms var(--ease);
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-2px)}
.icon-btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-sm);border:1px solid var(--line);
  background:var(--surface);flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:all 200ms var(--ease)}
.nav-drawer{
  position:fixed;inset:64px 0 0 0;z-index:55;background:var(--grad-brand);
  padding:28px 22px 40px;overflow-y:auto;
}
.nav-drawer[hidden]{display:none}
.drawer-search{
  display:flex;align-items:center;gap:8px;height:46px;padding:0 14px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);margin-bottom:22px;
}
.drawer-search input{flex:1;border:0;background:transparent;outline:none;color:#fff;font-size:14px}
.drawer-search input::placeholder{color:rgba(255,255,255,.6)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:26px}
.drawer-nav a{color:#EAF0E7;font-size:16px;padding:14px 4px;border-bottom:1px solid rgba(255,255,255,.14)}
.drawer-nav a.active{color:var(--lime);font-weight:700}
.drawer-cta{display:block;width:100%;text-align:center}

/* ============ 面包屑 ============ */
.crumbs{padding-top:28px;display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-2)}
.crumbs a{color:var(--text-2);transition:color 180ms var(--ease)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:var(--text-3)}
.crumbs .current{color:var(--ink);font-weight:600}

/* ============ 内页 Hero ============ */
.cat-hero{
  position:relative;overflow:hidden;border-radius:var(--r-xl);margin-top:24px;
  background-image:linear-gradient(120deg,rgba(12,31,27,.92) 0%,rgba(23,86,69,.86) 52%,rgba(44,138,99,.72) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  color:#fff;padding:56px 48px 52px;
}
.cat-hero::after{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,242,107,.34) 0%,rgba(201,242,107,0) 68%);pointer-events:none;
}
.cat-hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.35fr .9fr;gap:40px;align-items:end}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--lime);margin-bottom:16px;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 4px rgba(201,242,107,.22)}
.cat-title{font-size:clamp(34px,5vw,56px);line-height:1.12;font-weight:800;letter-spacing:-.02em;max-width:16em}
.cat-intro{margin-top:18px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.86);max-width:44em}
.hero-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px}
.hero-mini{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-mini .mini{
  display:inline-flex;align-items:center;gap:8px;padding:9px 14px;border-radius:999px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);font-size:13px;color:#EAF0E7;
}
.hero-mini .mini b{color:var(--lime);font-weight:800}
.hero-panel{
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.22);border-radius:var(--r-xl);
  padding:22px;backdrop-filter:blur(6px);
}
.hero-panel h3{font-size:15px;font-weight:700;color:#fff;margin-bottom:14px}
.panel-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px dashed rgba(255,255,255,.22);font-size:13.5px;color:rgba(255,255,255,.82)}
.panel-row:last-child{border-bottom:0}
.panel-row b{color:var(--lime);font-weight:800;font-size:15px}
@media (max-width:1024px){
  .cat-hero{padding:44px 32px 40px}
  .cat-hero-grid{grid-template-columns:1fr;gap:28px;align-items:start}
}
@media (max-width:640px){
  .cat-hero{padding:34px 22px 30px;border-radius:24px;background-image:linear-gradient(150deg,rgba(12,31,27,.94) 0%,rgba(23,86,69,.9) 55%,rgba(44,138,99,.86) 100%),url("/assets/images/backpic/back-1.webp")}
  .cat-title{font-size:clamp(30px,8vw,38px)}
}

/* ============ 板块标题 ============ */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.sec-title{font-size:clamp(26px,3vw,38px);line-height:1.25;font-weight:800;letter-spacing:-.015em}
.sec-sub{margin-top:12px;color:var(--text-2);font-size:15.5px;max-width:52em}

/* ============ 内容区：侧栏 + 卡片 ============ */
.layout{display:grid;grid-template-columns:264px minmax(0,1fr);gap:32px;align-items:start}
.sidebar{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:20px;box-shadow:var(--shadow-card)}
.side-card h3{font-size:15px;font-weight:800;margin-bottom:14px;color:var(--ink)}
.side-nav{display:flex;flex-direction:column;gap:6px}
.side-nav a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 13px;border-radius:var(--r-sm);
  font-size:14px;color:var(--text-2);background:var(--surface-2);transition:all 200ms var(--ease);
}
.side-nav a:hover{background:var(--brand-soft);color:var(--brand)}
.side-nav a.active{background:var(--ink);color:#fff;font-weight:700}
.side-nav a.active::after{content:"●";font-size:9px;color:var(--lime)}
.side-anchor{display:flex;flex-direction:column;gap:4px}
.side-anchor a{font-size:13.5px;color:var(--text-2);padding:8px 10px;border-radius:10px;border-left:2px solid var(--line);transition:all 200ms var(--ease)}
.side-anchor a:hover{color:var(--brand);border-left-color:var(--brand);background:var(--brand-soft)}
.side-cta{background:var(--grad-brand);border-radius:var(--r-lg);padding:22px;color:#fff;position:relative;overflow:hidden}
.side-cta::after{content:"";position:absolute;right:-60px;bottom:-70px;width:180px;height:180px;border-radius:50%;background:radial-gradient(circle,rgba(201,242,107,.3) 0%,rgba(201,242,107,0) 70%)}
.side-cta h3{font-size:16px;font-weight:800;margin-bottom:8px}
.side-cta p{font-size:13.5px;color:rgba(255,255,255,.82);line-height:1.7;margin-bottom:16px}
.side-cta .btn{width:100%}
@media (max-width:1024px){
  .layout{grid-template-columns:1fr}
  .sidebar{position:static}
}

.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.dcard{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow-card);display:flex;flex-direction:column;transition:all 220ms var(--ease);
}
.dcard:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#C4D4C2}
.dcard-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2)}
.dcard-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.dcard:hover .dcard-media img{transform:scale(1.03)}
.dcard-media .badge{position:absolute;left:14px;top:14px}
.dcard-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.dcard-body h3{font-size:19px;font-weight:800;line-height:1.35;letter-spacing:-.01em}
.dcard-body p{font-size:14.5px;color:var(--text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.dcard-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:12.5px;color:var(--text-3)}
.dcard-foot{margin-top:auto;padding-top:4px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.stat-chip{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:700;color:var(--brand);background:var(--brand-soft);border-radius:999px;padding:6px 11px}
@media (max-width:900px){.card-grid{grid-template-columns:1fr}}

/* ============ 指标条 ============ */
.kpi-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.kpi{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--shadow-card);transition:all 220ms var(--ease)}
.kpi:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.kpi-num{font-size:clamp(34px,3.4vw,46px);font-weight:800;line-height:1.05;letter-spacing:-.02em;font-variant-numeric:tabular-nums;color:var(--ink)}
.kpi-num small{font-size:14px;font-weight:600;color:var(--text-2);margin-left:6px}
.kpi h4{font-size:15px;font-weight:700;color:var(--ink);margin-top:10px}
.kpi p{font-size:13px;color:var(--text-3);margin-top:6px}
.kpi-bar{height:4px;border-radius:999px;background:var(--surface-2);margin-top:14px;overflow:hidden}
.kpi-bar i{display:block;height:100%;border-radius:999px;background:var(--grad-lime)}
@media (max-width:1024px){.kpi-strip{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:520px){.kpi-strip{grid-template-columns:1fr}}

/* ============ 流程 ============ */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:step}
.step{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;position:relative;box-shadow:var(--shadow-card);transition:all 220ms var(--ease)}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.step-no{
  width:34px;height:34px;border-radius:12px;background:var(--ink);color:var(--lime);
  display:inline-flex;align-items:center;justify-content:center;font-weight:800;font-size:14px;margin-bottom:14px;
}
.step h3{font-size:16.5px;font-weight:800;margin-bottom:8px}
.step p{font-size:14px;color:var(--text-2);line-height:1.75}
@media (max-width:1024px){.steps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:600px){.steps{grid-template-columns:1fr}}

/* ============ 同级分类 ============ */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rel-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;
  box-shadow:var(--shadow-card);display:flex;flex-direction:column;gap:12px;transition:all 220ms var(--ease);
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#C4D4C2}
.rel-card h3{font-size:18px;font-weight:800}
.rel-card p{font-size:14px;color:var(--text-2);line-height:1.75}
.rel-icon{width:44px;height:44px;border-radius:14px;background:var(--surface-2);color:var(--brand);display:inline-flex;align-items:center;justify-content:center}
.rel-card.is-current{background:var(--surface-2);border-color:var(--brand)}
@media (max-width:900px){.rel-grid{grid-template-columns:1fr}}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);background:var(--grad-brand);color:#fff;
  padding:52px 48px;display:grid;grid-template-columns:1.3fr .8fr;gap:32px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.08;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:44px 44px;pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-100px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,242,107,.3) 0%,rgba(201,242,107,0) 70%);pointer-events:none;
}
.cta-band h2{position:relative;font-size:clamp(24px,2.6vw,34px);line-height:1.3;font-weight:800;letter-spacing:-.015em}
.cta-band p{position:relative;margin-top:14px;font-size:15px;color:rgba(255,255,255,.84);max-width:40em}
.cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
@media (max-width:900px){
  .cta-band{grid-template-columns:1fr;padding:38px 26px}
  .cta-actions{justify-content:flex-start}
}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:0 22px;box-shadow:var(--shadow-card);transition:all 220ms var(--ease)}
.faq-item.is-open{background:#F3F8EE;border-color:#C4D4C2}
.faq-q{
  width:100%;background:transparent;border:0;cursor:pointer;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 0;
  font-size:18px;font-weight:600;color:var(--ink);line-height:1.5;
}
.faq-q:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px}
.faq-icon{
  flex-shrink:0;width:30px;height:30px;border-radius:50%;background:var(--surface-2);color:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;font-size:17px;font-weight:700;line-height:1;transition:all 220ms var(--ease);
}
.faq-item.is-open .faq-icon{background:var(--lime);color:var(--ink)}
.faq-a{display:none;padding:0 0 22px 16px;border-left:2px solid var(--line);color:var(--text-2);font-size:15px;line-height:1.8}
.faq-item.is-open .faq-a{display:block}

/* ============ 页脚 ============ */
.site-footer{margin-top:96px;background:var(--ink);color:#C7D3CD;position:relative}
.site-footer::before{content:"";display:block;height:4px;background:var(--grad-lime)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding:60px 0 40px}
.footer-col h4{font-size:15px;font-weight:800;color:#fff;margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:#C7D3CD;transition:color 200ms var(--ease)}
.footer-col a:hover{color:var(--lime)}
.footer-col a:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:6px}
.footer-col li{font-size:14px;line-height:1.7}
.footer-brand .brand-name{color:#fff}
.footer-brand p{font-size:13.5px;line-height:1.85;color:#A9B7B0;margin-top:16px;max-width:32em}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;text-align:center;font-size:13px;color:#8A9A93}
@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr;padding:44px 0 30px}}

/* ============ 响应式导航 ============ */
@media (max-width:1024px){
  .nav-links{display:none}
  .search-box{display:none}
  .nav-toggle{display:inline-flex}
  .nav-links a.active::after{display:none}
}
@media (max-width:520px){
  .icon-btn{display:none}
  .brand-name{font-size:15px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
  --ink:#0C1F1B;
  --ink-2:#123B33;
  --brand:#1F7A5C;
  --lime:#C9F26B;
  --amber:#FF7A2F;
  --bg:#F5F7F2;
  --surface:#FFFFFF;
  --surface-2:#EAF0E7;
  --line:#D8E0D6;
  --text:#121A17;
  --text-2:#4C5A55;
  --text-3:#86928C;
  --r-xl:28px;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:12px;
  --shadow:0 1px 2px rgba(12,31,27,.06),0 12px 32px -12px rgba(12,31,27,.18);
  --shadow-h:0 20px 48px -16px rgba(12,31,27,.28);
  --grad-brand:linear-gradient(135deg,#0C1F1B 0%,#175645 55%,#2C8A63 100%);
  --grad-lime:linear-gradient(100deg,#C9F26B 0%,#7FE0A6 100%);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:800;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
@media (min-width:1440px){.container{max-width:1280px;}}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(245,247,242,.82);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-bar{display:flex;align-items:center;height:64px;gap:24px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  background:var(--grad-brand);color:var(--lime);
  box-shadow:0 8px 18px -8px rgba(12,31,27,.6);
}
.brand-name{font-weight:800;font-size:17px;color:var(--ink);letter-spacing:-.01em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-links a{
  position:relative;padding:20px 12px;font-size:15px;color:var(--text-2);
  transition:color .2s var(--ease);white-space:nowrap;
}
.nav-links a:hover{color:var(--brand);}
.nav-links a.active{color:var(--ink);font-weight:700;}
.nav-links a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:12px;height:2px;
  background:var(--lime);border-radius:2px;
}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:240px;height:40px;padding:0 10px 0 12px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-box:focus-within{border-color:var(--lime);box-shadow:0 0 0 4px rgba(201,242,107,.45);}
.search-box input{border:0;outline:0;background:transparent;width:100%;font-size:14px;}
.search-box input::placeholder{color:var(--text-3);}
.kbd{
  font-size:11px;color:var(--text-3);border:1px solid var(--line);
  border-radius:6px;padding:1px 6px;background:var(--surface-2);white-space:nowrap;
}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-sm);
  display:grid;place-items:center;color:var(--ink-2);
  border:1px solid var(--line);background:var(--surface);
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.icon-btn:hover{background:var(--surface-2);color:var(--brand);}
.icon-btn:active{transform:translateY(1px);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-md);font-weight:700;cursor:pointer;border:0;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-lg{height:52px;padding:0 26px;font-size:16px;}
.btn-primary{background:var(--lime);color:var(--ink);box-shadow:0 10px 24px -14px rgba(31,122,92,.9);}
.btn-primary:hover{background:#d7f88a;box-shadow:var(--shadow-h);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--brand);border:1.5px solid var(--brand);}
.btn-ghost:hover{background:rgba(31,122,92,.08);}
.btn-ghost:active{transform:translateY(1px);}
.btn-outline-light{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.55);}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff;}
.nav-toggle{display:none;width:42px;height:42px;border-radius:var(--r-sm);background:var(--surface);border:1px solid var(--line);cursor:pointer;padding:0;}
.nav-toggle span{display:block;width:18px;height:2px;margin:3px auto;background:var(--ink);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease);}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:20px 0 0;}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--text-3);}
.crumb a{
  padding:5px 12px;border-radius:999px;background:var(--surface);
  border:1px solid var(--line);color:var(--text-2);transition:color .2s var(--ease),border-color .2s var(--ease);
}
.crumb a:hover{color:var(--brand);border-color:var(--brand);}
.crumb .sep{color:var(--text-3);}
.crumb .current{padding:5px 12px;border-radius:999px;background:var(--surface-2);color:var(--ink-2);font-weight:600;}

/* ---------- Hero ---------- */
.hero{position:relative;margin-top:20px;color:#fff;overflow:hidden;background:var(--grad-brand);}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.42;
}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(12,31,27,.94) 0%,rgba(23,86,69,.82) 55%,rgba(44,138,99,.66) 100%);
}
.hero-grid{
  position:absolute;inset:0;opacity:.08;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:48px 48px;
}
.hero-glow{
  position:absolute;top:-120px;right:-80px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,242,107,.34) 0%,rgba(201,242,107,0) 70%);
}
.hero-inner{position:relative;z-index:2;padding:72px 0 64px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(201,242,107,.16);color:var(--lime);border:1px solid rgba(201,242,107,.4);
}
.hero h1{
  margin-top:20px;
  font-size:clamp(34px,5vw,56px);line-height:1.12;font-weight:800;letter-spacing:-.02em;
  max-width:20em;
}
.hero h1 em{font-style:normal;color:var(--lime);}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.82);max-width:46em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px;}
.stat-pill{
  display:flex;align-items:baseline;gap:8px;
  padding:10px 16px;border-radius:999px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);
  backdrop-filter:blur(6px);
}
.stat-pill b{font-size:20px;font-weight:800;color:var(--lime);font-variant-numeric:tabular-nums;}
.stat-pill span{font-size:13px;color:rgba(255,255,255,.8);}
.hero-strip{
  position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid rgba(255,255,255,.16);
}
.hero-strip div{padding:20px 24px;border-right:1px solid rgba(255,255,255,.14);}
.hero-strip div:last-child{border-right:0;}
.hero-strip b{display:block;font-size:26px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;}
.hero-strip span{font-size:13px;color:rgba(255,255,255,.72);}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section.tight{padding:64px 0;}
.section-head{max-width:760px;}
.section-head.center{margin:0 auto;text-align:center;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--brand);background:var(--surface-2);border-radius:999px;padding:5px 14px;
}
.section-head h2{margin-top:16px;font-size:clamp(26px,3vw,38px);color:var(--ink);}
.section-head p{margin-top:16px;color:var(--text-2);font-size:16px;}
.lead-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);
  padding:32px;box-shadow:var(--shadow);
}
.lead-card p{color:var(--text-2);}
.lead-card p + p{margin-top:14px;}

/* ---------- 分段大图区 ---------- */
.seg-row{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  padding:48px 0;border-bottom:1px dashed var(--line);
}
.seg-row:last-child{border-bottom:0;padding-bottom:0;}
.seg-row.reverse .seg-media{order:2;}
.seg-media{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
  aspect-ratio:16/10;background:var(--surface-2);
}
.seg-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.seg-media:hover img{transform:scale(1.03);}
.seg-media .seg-badge{
  position:absolute;left:16px;top:16px;padding:5px 13px;border-radius:999px;
  font-size:12px;font-weight:700;background:var(--lime);color:var(--ink);
}
.seg-body h3{font-size:24px;color:var(--ink);}
.seg-body p{margin-top:14px;color:var(--text-2);}
.seg-list{margin-top:18px;display:grid;gap:10px;}
.seg-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text-2);}
.seg-list li::before{
  content:"";flex:0 0 auto;width:8px;height:8px;margin-top:10px;border-radius:50%;
  background:var(--grad-lime);
}
.seg-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.tag{
  font-size:12.5px;padding:4px 12px;border-radius:999px;
  background:var(--surface-2);color:var(--ink-2);border:1px solid var(--line);
}
.tag-lime{background:var(--lime);color:var(--ink);border-color:transparent;font-weight:700;}

/* ---------- 对比表 ---------- */
.cmp-card{
  margin-top:40px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-xl);box-shadow:var(--shadow);overflow:hidden;
}
.table-wrap{overflow-x:auto;}
table.cmp-table{width:100%;border-collapse:collapse;min-width:680px;}
table.cmp-table caption{
  text-align:left;padding:24px 26px 8px;font-size:15px;color:var(--text-3);
}
table.cmp-table th,table.cmp-table td{
  padding:16px 26px;text-align:left;font-size:15px;border-bottom:1px solid var(--line);
}
table.cmp-table thead th{
  background:var(--surface-2);color:var(--ink);font-size:14px;font-weight:700;
  letter-spacing:.02em;border-bottom:1px solid var(--line);
}
table.cmp-table tbody tr:nth-child(even){background:#FAFCF7;}
table.cmp-table tbody tr:hover{background:#F1F7EC;}
table.cmp-table td:nth-child(2){color:var(--text-3);}
table.cmp-table td:nth-child(3){color:var(--ink-2);font-weight:600;}
table.cmp-table tbody tr:last-child td{border-bottom:0;}
.bar{display:block;margin-top:8px;height:6px;border-radius:999px;background:var(--surface-2);overflow:hidden;}
.bar i{display:block;height:100%;border-radius:999px;background:var(--grad-lime);}
.cmp-note{padding:18px 26px 26px;font-size:13.5px;color:var(--text-3);}

/* ---------- 字段清单 ---------- */
.field-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:40px;}
.field-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow);transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.field-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-h);}
.field-card h3{font-size:18px;color:var(--ink);display:flex;align-items:center;gap:10px;}
.field-card h3 .dot{width:10px;height:10px;border-radius:50%;background:var(--grad-lime);flex:0 0 auto;}
.field-card p{margin-top:12px;font-size:14.5px;color:var(--text-2);}
.field-card ul{margin-top:14px;display:grid;gap:8px;}
.field-card li{font-size:14px;color:var(--text-2);padding-left:14px;position:relative;}
.field-card li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--brand);opacity:.55;}

/* ---------- 同级分类入口 ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:40px;}
.cat-card{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.cat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-h);}
.cat-card .cat-img{aspect-ratio:16/7;overflow:hidden;background:var(--surface-2);}
.cat-card .cat-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.cat-card:hover .cat-img img{transform:scale(1.03);}
.cat-card .cat-body{padding:24px;}
.cat-card h3{font-size:20px;color:var(--ink);}
.cat-card p{margin-top:10px;font-size:14.5px;color:var(--text-2);}
.text-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;
  font-size:14.5px;font-weight:700;color:var(--brand);
}
.text-link svg{transition:transform .2s var(--ease);}
.text-link:hover svg{transform:translateX(4px);}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:var(--grad-brand);color:#fff;padding:48px;
  box-shadow:var(--shadow);
}
.cta-band::after{
  content:"";position:absolute;top:-90px;right:-60px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,242,107,.3) 0%,rgba(201,242,107,0) 70%);
}
.cta-band .cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;}
.cta-band h2{font-size:clamp(24px,2.6vw,32px);max-width:22em;}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.8);font-size:15.5px;max-width:38em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- FAQ ---------- */
.faq-list{margin-top:36px;display:grid;gap:16px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;transition:box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.faq-item.open{border-color:rgba(31,122,92,.35);box-shadow:var(--shadow);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:18px;font-weight:600;color:var(--ink);
}
.faq-q:hover{color:var(--brand);}
.faq-icon{
  flex:0 0 auto;width:30px;height:30px;border-radius:50%;
  display:grid;place-items:center;background:var(--surface-2);color:var(--ink);
  font-size:18px;line-height:1;transition:background .2s var(--ease),color .2s var(--ease);
}
.faq-icon::before{content:"+";}
.faq-item.open .faq-icon{background:var(--lime);color:var(--ink);}
.faq-item.open .faq-icon::before{content:"−";}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-item.open .faq-a{max-height:340px;}
.faq-a p{
  margin:0 24px 22px;padding-left:16px;border-left:2px solid var(--line);
  font-size:15px;line-height:1.8;color:var(--text-2);
}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--ink);color:rgba(255,255,255,.78);margin-top:96px;}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad-lime);}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 40px;
}
.footer-col h4{font-size:16px;color:#fff;margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col li,.footer-col p{font-size:14px;line-height:1.75;color:rgba(255,255,255,.66);}
.footer-col a{transition:color .2s var(--ease);}
.footer-col a:hover{color:var(--lime);}
.footer-brand .brand-name{color:#fff;}
.footer-brand p{margin-top:16px;max-width:34em;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;
  text-align:center;font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .container{padding:0 20px;}
  .section{padding:64px 0;}
  .nav-links a{padding:20px 9px;font-size:14px;}
  .search-box{width:180px;}
  .seg-row{grid-template-columns:1fr;gap:28px;}
  .seg-row.reverse .seg-media{order:0;}
  .field-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .hero-strip{grid-template-columns:repeat(2,1fr);}
  .hero-strip div:nth-child(2){border-right:0;}
}
@media (max-width:768px){
  .nav-links{
    position:fixed;top:0;left:0;right:0;height:100dvh;z-index:60;
    flex-direction:column;align-items:stretch;justify-content:flex-start;gap:0;
    margin:0;padding:84px 24px 32px;
    background:var(--grad-brand);
    transform:translateY(-100%);transition:transform .3s var(--ease);
    overflow-y:auto;
  }
  .nav-open .nav-links{transform:translateY(0);}
  .nav-links a{
    color:#fff;font-size:17px;padding:16px 0;width:100%;
    border-bottom:1px solid rgba(255,255,255,.14);
  }
  .nav-links a.active{color:var(--lime);}
  .nav-links a.active::after{display:none;}
  .search-box{display:none;}
  .icon-btn{display:none;}
  .btn-sm.desk-cta{display:none;}
  .nav-toggle{display:block;position:relative;z-index:70;}
  .nav-open .nav-toggle{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.3);}
  .nav-open .nav-toggle span{background:var(--lime);}
  .nav-open .nav-toggle span:nth-child(1){transform:translateY(5px) rotate(45deg);}
  .nav-open .nav-toggle span:nth-child(2){opacity:0;}
  .nav-open .nav-toggle span:nth-child(3){transform:translateY(-5px) rotate(-45deg);}
  .nav-open .brand-name{color:var(--lime);}
  .hero-inner{padding:48px 0 44px;}
  .hero-sub{font-size:15.5px;}
  .cat-grid{grid-template-columns:1fr;}
  .cta-band{padding:32px;}
  .field-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:48px 0 32px;}
}
@media (max-width:520px){
  .hero h1{font-size:clamp(28px,8vw,34px);}
  .hero-actions .btn{width:100%;}
  .hero-strip{grid-template-columns:1fr;}
  .hero-strip div{border-right:0;border-bottom:1px solid rgba(255,255,255,.14);}
  .lead-card{padding:22px;}
  .faq-q{font-size:16px;padding:18px;}
  .faq-a p{margin:0 18px 18px;}
  table.cmp-table th,table.cmp-table td{padding:14px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: category2 */
:root{
  --ink:#0C1F1B; --ink-2:#123B33; --brand:#1F7A5C; --lime:#C9F26B; --amber:#FF7A2F;
  --bg:#F5F7F2; --surface:#FFFFFF; --surface-2:#EAF0E7; --line:#D8E0D6;
  --text:#121A17; --text-2:#4C5A55; --text-3:#86928C;
  --grad-brand:linear-gradient(135deg,#0C1F1B 0%,#175645 55%,#2C8A63 100%);
  --grad-lime:linear-gradient(100deg,#C9F26B 0%,#7FE0A6 100%);
  --r-lg:28px; --r-md:20px; --r-sm:14px; --r-xs:12px;
  --shadow:0 1px 2px rgba(12,31,27,.06), 0 12px 32px -12px rgba(12,31,27,.18);
  --shadow-hover:0 20px 48px -16px rgba(12,31,27,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sect: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);font-size:16px;line-height:1.8;
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color 220ms var(--ease)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums;font-weight:800}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (min-width:1440px){.container{max-width:1280px}}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(245,247,242,.82);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-bar{height:64px;display:flex;align-items:center;gap:20px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--ink)}
.brand-mark{width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:var(--grad-brand);color:var(--lime);flex:0 0 auto;
  box-shadow:0 6px 16px -8px rgba(12,31,27,.6)}
.brand-name{font-size:16px;letter-spacing:-.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-links a{padding:8px 12px;font-size:14px;color:var(--text-2);border-radius:10px;
  border-bottom:2px solid transparent;white-space:nowrap}
.nav-links a:hover{color:var(--ink);background:var(--surface-2)}
.nav-links a.active{color:var(--ink);font-weight:700;border-bottom-color:var(--lime);background:transparent}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{display:flex;align-items:center;gap:8px;width:240px;height:40px;padding:0 12px;
  background:var(--surface);border:1px solid var(--line);border-radius:999px;transition:all 220ms var(--ease)}
.search-box:focus-within{border-color:var(--lime);box-shadow:0 0 0 4px rgba(201,242,107,.35)}
.search-box input{flex:1;min-width:0;border:0;outline:0;background:transparent;font-size:13px}
.search-box input::placeholder{color:var(--text-3)}
.kbd{font-size:11px;padding:2px 6px;border-radius:6px;background:var(--surface-2);
  border:1px solid var(--line);color:var(--text-3);white-space:nowrap}
.icon-btn{width:40px;height:40px;border-radius:999px;display:grid;place-items:center;
  background:var(--surface);border:1px solid var(--line);color:var(--ink-2);transition:all 220ms var(--ease)}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;cursor:pointer;border-radius:var(--r-sm);padding:0 22px;height:48px;
  font-size:15px;font-weight:700;transition:all 220ms var(--ease);white-space:nowrap}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--grad-lime);color:var(--ink);box-shadow:0 10px 26px -14px rgba(31,122,92,.8)}
.btn-primary:hover{filter:brightness(1.06);box-shadow:0 16px 34px -14px rgba(31,122,92,.85)}
.btn-ghost{background:transparent;border:1.5px solid var(--brand);color:var(--brand)}
.btn-ghost:hover{background:rgba(31,122,92,.08)}
.btn-light{background:rgba(255,255,255,.14);border:1.5px solid rgba(255,255,255,.5);color:#fff}
.btn-light:hover{background:rgba(255,255,255,.24)}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:12px}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;background:var(--surface);
  border:1px solid var(--line);cursor:pointer;padding:0;place-items:center;gap:4px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px}

.drawer{display:none}
@media (max-width:768px){
  .nav-links,.search-box,.icon-btn{display:none}
  .nav-toggle{display:grid}
  .nav-bar{height:60px;gap:12px}
  body.nav-open .drawer{display:block;position:fixed;inset:0;z-index:80;
    background:var(--grad-brand);color:#fff;padding:20px;overflow-y:auto}
  .drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
  .drawer-close{width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,.14);
    border:1px solid rgba(255,255,255,.4);color:#fff;font-size:18px;cursor:pointer}
  .drawer-search{display:flex;align-items:center;gap:8px;background:rgba(255,255,255,.14);
    border:1px solid rgba(255,255,255,.36);border-radius:999px;height:46px;padding:0 14px;margin-bottom:20px}
  .drawer-search input{flex:1;min-width:0;background:transparent;border:0;outline:0;color:#fff;font-size:14px}
  .drawer-search input::placeholder{color:rgba(255,255,255,.7)}
  .drawer-nav{display:grid;gap:6px;margin-bottom:24px}
  .drawer-nav a{padding:14px 16px;border-radius:14px;font-size:16px;font-weight:600;
    background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14)}
  .drawer-nav a.active{background:var(--lime);color:var(--ink);border-color:transparent}
  .drawer .btn{width:100%}
}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--grad-brand);color:#fff}
.hero::before{content:"";position:absolute;inset:0;opacity:.08;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:56px 56px}
.hero::after{content:"";position:absolute;width:520px;height:520px;right:-140px;top:-180px;
  background:radial-gradient(circle,rgba(201,242,107,.45) 0%,rgba(201,242,107,0) 68%)}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.06fr .94fr;
  gap:48px;align-items:center;padding:76px 0 84px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  padding:6px 14px;border-radius:999px;background:rgba(201,242,107,.16);
  border:1px solid rgba(201,242,107,.5);color:var(--lime)}
.hero h1{font-size:clamp(34px,5vw,56px);line-height:1.12;font-weight:800;letter-spacing:-.02em;margin:18px 0 16px}
.hero h1 em{font-style:normal;color:var(--lime)}
.hero-sub{font-size:17px;color:rgba(255,255,255,.86);max-width:560px;margin-bottom:28px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px}
.mini-badge{display:inline-flex;align-items:baseline;gap:6px;font-size:13px;
  padding:8px 14px;border-radius:999px;background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.24);color:#fff}
.mini-badge b{font-size:15px;color:var(--lime);font-variant-numeric:tabular-nums}

.hero-visual{position:relative}
.hero-bg{position:absolute;inset:-8% -6% -6% -6%;border-radius:var(--r-lg);
  background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;
  background-position:center;filter:saturate(.9);opacity:.5}
.hero-bg::after{content:"";position:absolute;inset:0;border-radius:var(--r-lg);
  background:linear-gradient(180deg,rgba(12,31,27,.35) 0%,rgba(12,31,27,.72) 100%)}
.hero-card{position:relative;border-radius:var(--r-lg);overflow:hidden;background:var(--surface);
  color:var(--text);box-shadow:0 30px 60px -24px rgba(0,0,0,.6);
  border:1px solid rgba(201,242,107,.5)}
.hero-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-card-body{padding:20px 22px 24px}
.hero-card-body h3{font-size:19px;margin:12px 0 8px;color:var(--ink)}
.hero-card-body p{font-size:14px;color:var(--text-2);line-height:1.7}
.hero-card-stats{display:flex;gap:20px;margin-top:16px;padding-top:16px;border-top:1px solid var(--line)}
.hero-card-stats div span{display:block;font-size:12px;color:var(--text-3)}
.hero-card-stats div b{font-size:22px;color:var(--brand);font-variant-numeric:tabular-nums}

/* ---------- generic ---------- */
.section{padding:var(--sect) 0}
.section-alt{background:var(--surface-2)}
.section-head{max-width:720px;margin-bottom:36px}
.section-head h2{font-size:clamp(26px,3vw,38px);margin:12px 0 14px}
.section-head .lead{font-size:16px;color:var(--text-2)}
.kicker{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--brand);text-transform:uppercase}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:700;
  padding:4px 12px;border-radius:999px;line-height:1.6}
.badge-lime{background:var(--lime);color:var(--ink)}
.badge-outline{background:transparent;border:1px solid var(--brand);color:var(--brand)}
.badge-soft{background:var(--surface-2);color:var(--text-2)}
.badge-amber{background:transparent;border:1px solid var(--amber);color:var(--amber)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand)}
.link-arrow svg{transition:transform 220ms var(--ease)}
.link-arrow:hover svg{transform:translateX(4px)}

.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:20px 0 0;font-size:14px;color:var(--text-3)}
.crumbs a{padding:4px 12px;border-radius:999px;background:var(--surface);border:1px solid var(--line);color:var(--text-2)}
.crumbs a:hover{color:var(--brand);border-color:var(--brand)}
.crumbs span.sep{color:var(--text-3)}
.crumbs strong{color:var(--ink);font-weight:700}

/* ---------- intro ---------- */
.intro{padding:44px 0 0}
.intro h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:16px}
.intro p{color:var(--text-2);font-size:16px;max-width:920px}

/* ---------- chips + masonry ---------- */
.chips{display:flex;gap:10px;overflow-x:auto;padding:6px 2px 16px;margin-bottom:10px;
  scrollbar-width:none}
.chips::-webkit-scrollbar{display:none}
.chip{flex:0 0 auto;border:1px solid var(--line);background:var(--surface);color:var(--text-2);
  font-size:14px;font-weight:600;padding:9px 18px;border-radius:999px;cursor:pointer;
  transition:all 220ms var(--ease)}
.chip:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.chip.is-active{background:var(--ink);border-color:var(--ink);color:#fff}
.masonry{column-count:3;column-gap:24px}
.m-card{break-inside:avoid;margin:0 0 24px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow);transition:all 220ms var(--ease)}
.m-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.m-card.is-hidden{display:none}
.m-card figure{margin:0;position:relative;overflow:hidden}
.m-card img{width:100%;object-fit:cover;transition:transform 420ms var(--ease)}
.m-card:hover img{transform:scale(1.03)}
.m-card .badge{position:absolute;left:14px;top:14px;z-index:2}
.m-body{padding:20px 22px 22px}
.m-body h3{font-size:20px;margin-bottom:10px}
.m-body p{font-size:14.5px;color:var(--text-2);margin-bottom:14px}
.m-meta{display:flex;flex-wrap:wrap;gap:14px;padding:12px 0;border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);margin-bottom:14px;font-size:13px;color:var(--text-3)}
.m-meta b{color:var(--ink);font-variant-numeric:tabular-nums;font-weight:800}
.m-body ul{display:grid;gap:6px;margin-bottom:16px}
.m-body ul li{position:relative;padding-left:18px;font-size:14px;color:var(--text-2)}
.m-body ul li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;
  border-radius:50%;background:var(--lime)}
.ar-16-9{aspect-ratio:16/9}
.ar-4-3{aspect-ratio:4/3}
.ar-1-1{aspect-ratio:1/1}

/* ---------- flow ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.flow-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 24px;box-shadow:var(--shadow);transition:all 220ms var(--ease)}
.flow-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.flow-step{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:var(--grad-brand);color:var(--lime);font-weight:800;
  font-variant-numeric:tabular-nums;margin-bottom:16px}
.flow-card h3{font-size:18px;margin-bottom:8px}
.flow-card p{font-size:14px;color:var(--text-2)}

/* ---------- metrics bars ---------- */
.metric-panel{background:var(--ink);color:#fff;border-radius:var(--r-lg);padding:44px;
  position:relative;overflow:hidden}
.metric-panel::after{content:"";position:absolute;width:420px;height:420px;right:-120px;bottom:-200px;
  background:radial-gradient(circle,rgba(201,242,107,.32) 0%,rgba(201,242,107,0) 70%)}
.metric-panel h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:12px;position:relative;z-index:2}
.metric-panel > p{color:rgba(255,255,255,.8);max-width:640px;margin-bottom:32px;position:relative;z-index:2}
.metric-list{display:grid;gap:24px;position:relative;z-index:2}
.metric-row{display:grid;grid-template-columns:220px 1fr 96px;gap:20px;align-items:center}
.metric-row .label{font-size:14.5px;color:rgba(255,255,255,.9)}
.metric-row .bar{height:8px;border-radius:999px;background:rgba(255,255,255,.14);overflow:hidden}
.metric-row .bar i{display:block;height:100%;border-radius:999px;background:var(--grad-lime)}
.metric-row .val{text-align:right;font-size:16px;font-weight:800;color:var(--lime);
  font-variant-numeric:tabular-nums}

/* ---------- compare table ---------- */
.compare-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow)}
.compare-head,.compare-row{display:grid;grid-template-columns:1.1fr 1fr 1fr}
.compare-head div{padding:18px 24px;font-size:14px;font-weight:700;background:var(--surface-2);color:var(--ink)}
.compare-head div:nth-child(3){background:var(--ink);color:#fff}
.compare-row div{padding:18px 24px;font-size:14.5px;border-top:1px solid var(--line);color:var(--text-2)}
.compare-row div:first-child{color:var(--ink);font-weight:700}
.compare-row div:last-child{background:rgba(31,122,92,.06);color:var(--ink-2)}
.compare-row span.dot{display:inline-block;width:8px;height:8px;border-radius:50%;
  background:var(--text-3);margin-right:8px}
.compare-row span.tick{display:inline-block;width:16px;height:16px;border-radius:50%;
  background:var(--lime);color:var(--ink);font-size:11px;text-align:center;line-height:16px;
  margin-right:8px;font-weight:800}

/* ---------- related categories ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cat-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:28px 26px;box-shadow:var(--shadow);transition:all 220ms var(--ease);display:flex;
  flex-direction:column;gap:12px}
.cat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--brand)}
.cat-card h3{font-size:20px}
.cat-card p{font-size:14.5px;color:var(--text-2);flex:1}
.cat-card.current{background:var(--grad-brand);color:#fff;border-color:transparent}
.cat-card.current p{color:rgba(255,255,255,.82)}
.cat-card.current .link-arrow{color:var(--lime)}

/* ---------- cta + form ---------- */
.cta-wrap{border-radius:var(--r-lg);overflow:hidden;display:grid;grid-template-columns:1fr 1.05fr;
  box-shadow:var(--shadow);background:var(--surface)}
.cta-left{background:var(--grad-brand);color:#fff;padding:48px 44px;position:relative;overflow:hidden}
.cta-left::after{content:"";position:absolute;width:360px;height:360px;left:-120px;bottom:-180px;
  background:radial-gradient(circle,rgba(201,242,107,.35) 0%,rgba(201,242,107,0) 70%)}
.cta-left h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:16px;position:relative;z-index:2}
.cta-left ul{display:grid;gap:14px;margin:0 0 30px;position:relative;z-index:2}
.cta-left ul li{position:relative;padding-left:26px;font-size:15px;color:rgba(255,255,255,.9)}
.cta-left ul li::before{content:"";position:absolute;left:0;top:9px;width:14px;height:14px;
  border-radius:50%;background:var(--lime)}
.contact-lines{display:grid;gap:10px;position:relative;z-index:2;font-size:14px;color:rgba(255,255,255,.88)}
.contact-lines div{display:flex;align-items:center;gap:10px}
.cta-right{padding:44px 44px 48px}
.cta-right h3{font-size:22px;margin-bottom:6px}
.cta-right > p{font-size:14px;color:var(--text-3);margin-bottom:24px}
.form-grid{display:grid;gap:16px}
.field label{display:block;font-size:13.5px;font-weight:700;margin-bottom:8px;color:var(--ink-2)}
.field input,.field select,.field textarea{width:100%;height:48px;border-radius:var(--r-xs);
  border:1px solid var(--line);background:var(--bg);padding:0 14px;font-size:14.5px;
  transition:all 200ms var(--ease);outline:0}
.field textarea{height:110px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--lime);
  box-shadow:0 0 0 4px rgba(201,242,107,.4);background:var(--surface)}
.field .err{display:none;font-size:12.5px;color:var(--amber);margin-top:6px}
.field.has-error input,.field.has-error textarea,.field.has-error select{border-color:var(--amber)}
.field.has-error .err{display:block}
.check{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-2)}
.check input{width:16px;height:16px;height:16px;margin-top:5px;accent-color:var(--brand)}
.form-note{font-size:12.5px;color:var(--text-3);text-align:center}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:0 24px;transition:all 220ms var(--ease)}
.faq-item.open{background:var(--surface-2);border-color:var(--brand)}
.faq-q{width:100%;background:none;border:0;cursor:pointer;display:flex;align-items:center;
  justify-content:space-between;gap:16px;text-align:left;padding:20px 0;font-size:18px;
  font-weight:600;color:var(--ink)}
.faq-icon{flex:0 0 auto;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;
  background:var(--surface-2);border:1px solid var(--line);color:var(--ink-2);
  font-size:16px;font-weight:700;transition:all 220ms var(--ease)}
.faq-item.open .faq-icon{background:var(--lime);border-color:transparent;color:var(--ink)}
.faq-a{display:none;padding:0 0 22px 16px;border-left:2px solid var(--line);
  font-size:15px;color:var(--text-2);margin-left:2px}
.faq-item.open .faq-a{display:block}

/* ---------- footer ---------- */
.site-footer{position:relative;background:var(--ink);color:rgba(255,255,255,.82);margin-top:20px}
.site-footer::before{content:"";display:block;height:4px;background:var(--grad-lime)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding:56px 0 40px}
.footer-brand .brand{color:#fff;margin-bottom:16px}
.footer-brand .brand-name{color:#fff}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.72);max-width:320px}
.footer-col h4{font-size:16px;color:#fff;margin-bottom:16px;font-weight:700}
.footer-col ul{display:grid;gap:10px;font-size:14px}
.footer-col a{color:rgba(255,255,255,.78)}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0 28px;text-align:center;
  font-size:13px;color:rgba(255,255,255,.58)}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  :root{--sect:76px}
  .hero-inner{grid-template-columns:1fr;gap:40px;padding:56px 0 68px}
  .masonry{column-count:2}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .cat-grid{grid-template-columns:1fr}
  .cta-wrap{grid-template-columns:1fr}
  .metric-row{grid-template-columns:1fr 1fr;gap:10px}
  .metric-row .val{grid-column:2;text-align:left}
  .compare-head,.compare-row{grid-template-columns:1fr 1fr 1fr}
}
@media (max-width:768px){
  :root{--sect:64px}
  .container{padding:0 20px}
  .hero h1{font-size:clamp(30px,8vw,40px)}
  .masonry{column-count:1}
  .m-card{margin-bottom:18px}
  .m-body{padding:18px}
  .flow-grid{grid-template-columns:1fr}
  .metric-panel{padding:28px 22px}
  .metric-row{grid-template-columns:1fr}
  .metric-row .val{grid-column:auto}
  .compare-card{overflow-x:auto}
  .compare-head,.compare-row{min-width:600px}
  .cta-left,.cta-right{padding:30px 22px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;padding:40px 0 28px}
  .footer-brand{grid-column:1 / -1}
  .faq-item{padding:0 18px}
  .faq-q{font-size:16px}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr}
  .hero-cta .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}