/* roulang page: index */
:root{
  --stadium:#0E3B33;
  --ink:#08251F;
  --stadium-light:#1A5A4C;
  --lime:#C9F24C;
  --ember:#FF7A2F;
  --paper:#F4F6F2;
  --alt:#E9EEE7;
  --dark:#0E3B33;
  --footer-bg:#08251F;
  --t1:#12211E;
  --t2:#4A5C57;
  --t3:#8A9995;
  --inv:#F2F7F4;
  --line:#D8E0DA;
  --ok:#1F8A5B;
  --warn:#D9822B;
  --err:#C0453A;
  --info:#2C7A8C;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(14,59,51,.06);
  --sh2:0 8px 24px -8px rgba(14,59,51,.18);
  --sh3:0 18px 48px -16px rgba(14,59,51,.28);
  --ease:180ms ease;
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  background:var(--paper);
  color:var(--t1);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease),transform var(--ease),opacity var(--ease);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
time{font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}
::selection{background:var(--lime);color:var(--ink);}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.narrow{max-width:760px;margin:0 auto;}
.section{padding:96px 0;position:relative;}
.section--alt{background:var(--alt);}
.section--dark{background:var(--dark);color:var(--inv);}
.section--dark .sec-sub{color:rgba(242,247,244,.72);}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.06em;font-weight:600;
  color:var(--stadium-light);
  background:rgba(14,59,51,.07);
  border-radius:var(--r-pill);
  padding:6px 14px;
  margin-bottom:18px;
  transition:background-color var(--ease),box-shadow var(--ease);
}
.section--dark .eyebrow{color:var(--lime);background:rgba(201,242,76,.14);}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 3px rgba(201,242,76,.25);}

.sec-head{max-width:720px;margin-bottom:48px;}
.sec-head h2{font-size:30px;line-height:1.35;font-weight:700;letter-spacing:.01em;}
.sec-sub{margin-top:14px;color:var(--t2);font-size:16px;line-height:1.8;}
.section--dark .sec-head h2{color:var(--inv);}

.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:600;letter-spacing:.01em;
  border:1.5px solid transparent;
  transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease),border-color var(--ease),filter var(--ease),color var(--ease);
  white-space:nowrap;
}
.btn svg{width:18px;height:18px;stroke-width:1.75;}
.btn-primary{background:var(--lime);color:var(--ink);border-color:var(--lime);box-shadow:var(--sh1);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--sh2);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(8,37,31,.22);}
.btn-ghost{background:transparent;color:var(--stadium);border-color:var(--stadium);}
.btn-ghost:hover{background:rgba(14,59,51,.06);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(14,59,51,.14);}
.btn-ghost-inv{background:transparent;color:var(--inv);border-color:rgba(242,247,244,.5);}
.btn-ghost-inv:hover{background:rgba(242,247,244,.1);transform:translateY(-1px);}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--stadium);font-weight:600;font-size:15px;padding:4px 0;}
.btn-text svg{width:18px;height:18px;transition:transform var(--ease);stroke-width:1.75;}
.btn-text:hover svg{transform:translateX(4px);}
.btn-text:hover{color:var(--stadium-light);}
.btn[disabled],.btn.is-disabled{filter:saturate(.4);opacity:.75;pointer-events:none;}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;line-height:1.5;letter-spacing:.05em;font-weight:600;
  padding:4px 12px;border-radius:var(--r-pill);
}
.badge-strong{background:var(--lime);color:var(--ink);}
.badge-soft{background:rgba(14,59,51,.08);color:var(--stadium);}
.badge-ember{background:rgba(255,122,47,.14);color:#B84F12;}

/* Header */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(244,246,242,.86);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background-color var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.site-header.is-scrolled{background:#F4F6F2;border-bottom:1px solid var(--line);box-shadow:var(--sh1);}
.nav{display:flex;align-items:center;justify-content:space-between;height:var(--nav-h);gap:24px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:36px;height:36px;border-radius:10px;background:var(--stadium);display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.brand-mark svg{width:20px;height:20px;stroke-width:1.75;stroke:var(--lime);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-main{font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--ink);}
.brand-sub{font-size:10.5px;letter-spacing:.08em;color:var(--t2);font-weight:500;}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{
  position:relative;display:inline-block;
  padding:9px 14px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:500;color:var(--t2);
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:3px;width:0;height:2px;background:var(--lime);
  transform:translateX(-50%);transition:width var(--ease);border-radius:2px;
}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after{width:22px;}
.nav-links a.is-active{color:var(--stadium);font-weight:700;background:rgba(201,242,76,.14);}
.nav-links a.is-active::after{width:22px;}
.nav-cta{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-cta .btn{height:42px;padding:0 18px;font-size:14.5px;}
.burger{
  display:none;width:44px;height:44px;border-radius:var(--r-md);
  border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;
}
.burger svg{width:22px;height:22px;stroke:var(--stadium);stroke-width:1.75;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(8,37,31,.5);z-index:200;
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:260px;z-index:201;
  background:var(--paper);box-shadow:var(--sh3);
  transform:translateX(102%);transition:transform 220ms ease;
  display:flex;flex-direction:column;padding:16px 0;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:6px 20px 16px;}
.drawer-head span{font-size:15px;font-weight:700;color:var(--ink);}
.drawer-close{width:40px;height:40px;border-radius:var(--r-md);border:1px solid var(--line);background:#fff;display:flex;align-items:center;justify-content:center;}
.drawer-close svg{width:18px;height:18px;stroke:var(--stadium);stroke-width:1.75;}
.drawer nav{flex:1;overflow-y:auto;}
.drawer nav a{
  display:flex;align-items:center;height:48px;padding:0 20px;
  font-size:15px;color:var(--t2);border-bottom:1px solid var(--line);
}
.drawer nav a.is-active{color:var(--stadium);font-weight:700;background:rgba(201,242,76,.14);}
.drawer-foot{padding:16px 20px 4px;}
.drawer-foot .btn{width:100%;height:44px;}

/* Anchor bar */
.anchor-bar{
  position:sticky;top:var(--nav-h);z-index:90;
  background:rgba(233,238,231,.94);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.anchor-scroll{
  display:flex;align-items:center;gap:6px;height:48px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.anchor-scroll::-webkit-scrollbar{display:none;}
.anchor-scroll a{
  flex:0 0 auto;padding:6px 14px;border-radius:var(--r-pill);
  font-size:13.5px;color:var(--t2);white-space:nowrap;
}
.anchor-scroll a:hover{color:var(--ink);background:rgba(255,255,255,.7);}
.anchor-scroll a.is-current{background:var(--lime);color:var(--ink);font-weight:600;}

/* Hero */
.hero{
  position:relative;
  padding:88px 0 96px;
  background:
    radial-gradient(680px 420px at 88% 82%, rgba(201,242,76,.12), transparent 70%),
    repeating-linear-gradient(90deg, rgba(14,59,51,.055) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg, rgba(14,59,51,.045) 0 1px, transparent 1px 96px),
    var(--paper);
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--line);
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;position:relative;z-index:1;}
.hero h1{font-size:44px;line-height:1.25;font-weight:700;letter-spacing:.01em;color:var(--ink);}
.hero h1 em{font-style:normal;position:relative;white-space:nowrap;}
.hero h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:4px;height:10px;
  background:rgba(201,242,76,.55);z-index:-1;border-radius:3px;
}
.hero-sub{margin-top:20px;font-size:19px;line-height:1.7;color:var(--t2);font-weight:500;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-trust{display:flex;flex-wrap:wrap;gap:28px;margin-top:36px;padding-top:28px;border-top:1px dashed var(--line);}
.trust-item{display:flex;align-items:center;gap:9px;font-size:14.5px;color:var(--t2);font-weight:500;}
.trust-item svg{width:20px;height:20px;stroke:var(--stadium-light);stroke-width:1.75;flex-shrink:0;}

.hero-visual{position:relative;}
.shot{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  background:#fff;box-shadow:var(--sh3);
}
.shot img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.shot-cap{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-top:1px solid var(--line);font-size:13px;color:var(--t2);}
.shot-cap strong{color:var(--ink);font-weight:600;}
.score-tag{
  position:absolute;top:-16px;left:-16px;
  background:rgba(14,59,51,.92);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
  color:var(--inv);border-radius:var(--r-md);
  padding:10px 16px;box-shadow:var(--sh2);
  display:flex;flex-direction:column;gap:2px;
}
.score-tag .k{font-size:10.5px;letter-spacing:.1em;color:rgba(242,247,244,.68);}
.score-tag .v{font-size:16px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--lime);}
.mini-card{
  position:absolute;right:-14px;bottom:-22px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);padding:14px 18px;box-shadow:var(--sh2);min-width:180px;
}
.mini-card .k{font-size:12px;color:var(--t3);letter-spacing:.04em;}
.mini-card .v{font-size:22px;font-weight:700;color:var(--stadium);font-variant-numeric:tabular-nums;line-height:1.35;}
.mini-card .bar{margin-top:8px;height:5px;border-radius:3px;background:var(--alt);overflow:hidden;}
.mini-card .bar i{display:block;height:100%;width:62%;background:var(--lime);border-radius:3px;}

/* Value */
.value-grid{display:grid;grid-template-columns:6fr 5fr;gap:64px;align-items:start;}
.vlist{display:flex;flex-direction:column;}
.vitem{display:grid;grid-template-columns:56px 1fr;gap:16px;padding:22px 0;border-bottom:1px dashed var(--line);}
.vitem:first-child{padding-top:0;}
.vitem:last-child{border-bottom:0;padding-bottom:0;}
.vnum{font-size:28px;font-weight:700;color:var(--ember);font-variant-numeric:tabular-nums;line-height:1.1;letter-spacing:.02em;}
.vitem h3{font-size:18px;font-weight:600;color:var(--ink);line-height:1.5;}
.vitem p{margin-top:8px;font-size:15px;color:var(--t2);line-height:1.8;}
.value-visual{position:sticky;top:140px;}
.value-visual .shot img{aspect-ratio:3/4;}
.value-note{
  margin-top:18px;background:#fff;border:1px solid var(--line);border-left:3px solid var(--lime);
  border-radius:var(--r-md);padding:16px 18px;font-size:14px;color:var(--t2);line-height:1.75;
}

/* Demo timeline */
.demo-grid{display:grid;grid-template-columns:6fr 5fr;gap:64px;align-items:start;}
.timeline{position:relative;padding-left:0;}
.tl-item{position:relative;display:grid;grid-template-columns:44px 1fr;gap:20px;padding-bottom:36px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:21px;top:44px;bottom:0;width:2px;background:var(--line);
}
.tl-item:last-child::before{display:none;}
.tl-dot{
  width:44px;height:44px;border-radius:50%;border:1.5px solid var(--stadium);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;color:var(--stadium);background:var(--paper);
  font-variant-numeric:tabular-nums;position:relative;z-index:1;
}
.tl-item.is-active .tl-dot{background:var(--lime);border-color:var(--lime);color:var(--ink);}
.tl-item h3{font-size:19px;font-weight:600;color:var(--ink);line-height:1.5;padding-top:6px;}
.tl-item p{margin-top:8px;font-size:15px;color:var(--t2);line-height:1.8;}
.tl-tip{
  margin-top:12px;background:var(--alt);border-left:3px solid var(--ember);
  border-radius:var(--r-sm);padding:10px 14px;font-size:13.5px;color:var(--t2);line-height:1.7;
}

/* Evidence */
.evidence-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border-top:1px solid rgba(242,247,244,.16);border-bottom:1px solid rgba(242,247,244,.16);
  padding:40px 0;margin-bottom:56px;
}
.stat{padding:0 24px;border-right:1px solid rgba(242,247,244,.16);}
.stat:last-child{border-right:0;}
.stat .num{font-size:40px;font-weight:700;line-height:1.1;color:var(--lime);font-variant-numeric:tabular-nums;letter-spacing:.01em;}
.stat .num small{font-size:16px;font-weight:600;color:var(--inv);margin-left:4px;}
.stat .lbl{margin-top:10px;font-size:13px;color:rgba(242,247,244,.7);line-height:1.7;}
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.quote-card{
  background:#fff;color:var(--t1);border-radius:14px;padding:24px;
  border-left:3px solid var(--lime);box-shadow:var(--sh2);
}
.quote-card h4{font-size:16px;font-weight:600;color:var(--ink);line-height:1.5;}
.quote-card p{margin-top:10px;font-size:14.5px;color:var(--t2);line-height:1.8;}
.quote-card .who{margin-top:14px;font-size:12.5px;color:var(--t3);letter-spacing:.04em;}

/* Price */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;}
.price-card{
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:32px 28px;
  display:flex;flex-direction:column;box-shadow:var(--sh1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.price-card:hover{transform:translateY(-3px);box-shadow:var(--sh3);border-color:rgba(14,59,51,.18);}
.price-card.is-featured{border:2px solid var(--lime);box-shadow:var(--sh2);padding:40px 30px;position:relative;}
.price-card .flag{position:absolute;top:-13px;left:28px;}
.price-card h3{font-size:20px;font-weight:700;color:var(--ink);}
.price-card .pd{margin-top:8px;font-size:14px;color:var(--t2);line-height:1.75;}
.price-card .tagline{margin-top:18px;font-size:26px;font-weight:700;color:var(--stadium);font-variant-numeric:tabular-nums;}
.price-card .tagline small{font-size:13px;font-weight:500;color:var(--t3);margin-left:6px;}
.price-list{margin:22px 0 28px;display:flex;flex-direction:column;gap:12px;flex:1;}
.price-list li{display:flex;gap:10px;font-size:14.5px;color:var(--t2);line-height:1.7;}
.price-list svg{width:18px;height:18px;stroke:var(--stadium-light);stroke-width:2;flex-shrink:0;margin-top:5px;}
.price-card .btn{width:100%;}

/* News */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.news-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px;grid-template-areas:"lead a b" "lead c c";}
.news-lead{grid-area:lead;}
.news-a{grid-area:a;}
.news-b{grid-area:b;}
.news-c{grid-area:c;}
.news-lead .card-inner{display:flex;flex-direction:column;height:100%;}
.news-lead img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:14px 14px 0 0;transition:transform 360ms ease;}
.news-lead:hover img{transform:scale(1.03);}
.news-media{overflow:hidden;border-radius:14px 14px 0 0;}
.card{
  background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease),background-color var(--ease);
  display:block;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh3);border-color:rgba(14,59,51,.18);}
.card-body{padding:22px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card h3{font-size:17px;font-weight:600;color:var(--ink);line-height:1.55;}
.card p{font-size:14px;color:var(--t2);line-height:1.75;}
.clamp2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.clamp3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:6px;font-size:12.5px;color:var(--t3);}
.news-lead h3{font-size:22px;}
.news-lead .card-body{padding:26px 28px;}
.empty-state{
  border:1.5px dashed var(--line);border-radius:14px;padding:56px 24px;text-align:center;
  display:flex;flex-direction:column;align-items:center;gap:14px;color:var(--t3);background:rgba(255,255,255,.5);
}
.empty-state svg{width:32px;height:32px;stroke:var(--t3);stroke-width:1.5;}
.empty-state p{font-size:14px;color:var(--t2);}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease);}
.faq-item.is-open{border-color:rgba(14,59,51,.22);box-shadow:var(--sh2);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:56px;padding:14px 24px;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-icon{
  width:28px;height:28px;flex-shrink:0;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  transition:transform 220ms ease,background-color var(--ease),border-color var(--ease);
}
.faq-icon svg{width:15px;height:15px;stroke:var(--stadium);stroke-width:2;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--lime);border-color:var(--lime);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 220ms ease;background:var(--paper);}
.faq-a-inner{padding:20px 24px;font-size:15px;color:var(--t2);line-height:1.85;border-top:1px solid var(--line);}
.faq-a-inner ul{margin-top:10px;display:flex;flex-direction:column;gap:8px;}
.faq-a-inner li{position:relative;padding-left:16px;}
.faq-a-inner li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;background:var(--lime);border-radius:2px;}

/* CTA band */
.cta-band{
  background:var(--footer-bg);color:var(--inv);border-radius:0;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(520px 320px at 12% 100%, rgba(201,242,76,.12), transparent 70%),
    repeating-linear-gradient(90deg, rgba(242,247,244,.05) 0 1px, transparent 1px 88px);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:1;padding:88px 0;text-align:center;display:flex;flex-direction:column;align-items:center;gap:18px;}
.cta-inner h2{font-size:32px;line-height:1.35;font-weight:700;}
.cta-inner p{font-size:16px;color:rgba(242,247,244,.75);max-width:620px;line-height:1.8;}
.cta-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;justify-content:center;margin-top:8px;}

/* Footer */
.site-footer{background:var(--footer-bg);color:var(--inv);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:48px;padding-bottom:56px;}
.footer-brand .brand-main{color:var(--inv);font-size:18px;}
.footer-brand .brand-sub{color:rgba(242,247,244,.6);}
.footer-brand .brand-mark{background:rgba(201,242,76,.14);}
.footer-brand p{margin-top:18px;font-size:14px;color:rgba(242,247,244,.68);line-height:1.85;max-width:320px;}
.footer-col h3{font-size:14px;font-weight:600;color:rgba(242,247,244,.72);letter-spacing:.06em;margin-bottom:18px;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{font-size:14.5px;color:rgba(242,247,244,.82);display:inline-block;}
.footer-links a:hover{color:var(--lime);transform:translateX(2px);}
.footer-bottom{
  border-top:1px solid rgba(242,247,244,.14);
  padding:22px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:13px;color:rgba(242,247,244,.6);
}
.footer-bottom .meta{display:flex;gap:18px;flex-wrap:wrap;}
.to-top{display:inline-flex;align-items:center;gap:7px;color:rgba(242,247,244,.8);font-size:13px;}
.to-top svg{width:16px;height:16px;stroke-width:1.75;stroke:currentColor;}
.to-top:hover{color:var(--lime);}

/* Floating CTA */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:80;
  display:inline-flex;align-items:center;gap:9px;
  height:52px;padding:0 22px;border-radius:var(--r-pill);
  background:var(--lime);color:var(--ink);font-size:15px;font-weight:600;
  box-shadow:var(--sh3);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity 220ms ease,transform 220ms ease,visibility 220ms ease,filter var(--ease);
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{filter:brightness(1.06);transform:translateY(-1px);}
.float-cta svg{width:19px;height:19px;stroke-width:1.75;}
.mobile-bar{display:none;}

/* Reveal */
.reveal{opacity:0;transform:translateY(16px);transition:opacity 520ms ease,transform 520ms ease;}
.reveal.is-in{opacity:1;transform:none;}

/* Responsive */
@media (max-width:1279px){
  .container{padding:0 24px;}
  .hero h1{font-size:38px;}
}
@media (max-width:1023px){
  :root{--nav-h:64px;}
  .nav-links{display:none;}
  .nav-cta .btn{display:none;}
  .burger{display:flex;}
  .section{padding:72px 0;}
  .hero{padding:64px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:48px;}
  .hero h1{font-size:34px;}
  .value-grid,.demo-grid{grid-template-columns:1fr;gap:40px;}
  .value-visual{position:static;}
  .value-visual .shot img{aspect-ratio:16/10;}
  .evidence-stats{grid-template-columns:repeat(2,1fr);gap:0;padding:0;border:0;}
  .stat{border:0;border-bottom:1px solid rgba(242,247,244,.16);padding:28px 20px;}
  .stat:nth-child(odd){border-right:1px solid rgba(242,247,244,.16);}
  .stat:nth-last-child(-n+2){border-bottom:0;}
  .quote-grid{grid-template-columns:1fr;gap:16px;}
  .price-grid{grid-template-columns:1fr;gap:20px;}
  .price-card.is-featured{padding:32px 28px;}
  .news-grid{grid-template-columns:1fr 1fr;grid-template-areas:"lead lead" "a b" "c c";}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;padding-bottom:40px;}
  .cta-inner{padding:64px 0;}
  .cta-inner h2{font-size:26px;}
}
@media (max-width:639px){
  :root{--nav-h:60px;}
  body{font-size:16px;}
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .hero{padding:48px 0 56px;}
  .hero h1{font-size:29px;}
  .hero-sub{font-size:16px;}
  .hero-actions{flex-direction:column;gap:12px;}
  .hero-actions .btn{width:100%;height:48px;}
  .hero-trust{gap:16px;margin-top:28px;padding-top:22px;}
  .trust-item{font-size:13.5px;}
  .score-tag{left:auto;right:12px;top:-14px;}
  .mini-card{right:8px;bottom:-18px;min-width:150px;padding:12px 14px;}
  .sec-head{margin-bottom:32px;}
  .sec-head h2{font-size:23px;}
  .vitem{grid-template-columns:40px 1fr;gap:12px;padding:18px 0;}
  .vnum{font-size:23px;}
  .tl-item{grid-template-columns:36px 1fr;gap:16px;padding-bottom:28px;}
  .tl-dot{width:36px;height:36px;font-size:14px;}
  .tl-item::before{left:17px;top:36px;}
  .tl-item p{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
  .stat .num{font-size:32px;}
  .price-card{padding:26px 22px;}
  .price-card.is-featured{padding:30px 22px;}
  .news-grid{grid-template-columns:1fr;grid-template-areas:"lead" "a" "b" "c";}
  .news-lead h3{font-size:19px;}
  .faq-q{min-height:52px;padding:12px 18px;font-size:15px;}
  .faq-a-inner{padding:16px 18px;}
  .cta-inner{padding:56px 0;}
  .cta-inner h2{font-size:23px;}
  .footer-grid{grid-template-columns:1fr;gap:0;padding-bottom:24px;}
  .footer-col{border-bottom:1px solid rgba(242,247,244,.14);padding:14px 0;}
  .footer-col h3{margin:0;display:flex;align-items:center;justify-content:space-between;cursor:pointer;}
  .footer-col h3 svg{width:16px;height:16px;stroke:rgba(242,247,244,.6);stroke-width:2;transition:transform var(--ease);}
  .footer-col.is-open h3 svg{transform:rotate(180deg);}
  .footer-links{display:none;padding-top:14px;}
  .footer-col.is-open .footer-links{display:flex;}
  .footer-brand{padding:0 0 20px;border-bottom:1px solid rgba(242,247,244,.14);}
  .footer-brand p{max-width:none;}
  .footer-bottom{padding:18px 0 78px;font-size:12.5px;}
  .float-cta{display:none;}
  .mobile-bar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:80;
    height:56px;padding:0 18px;gap:12px;align-items:center;
    background:rgba(244,246,242,.96);
    -webkit-backdrop-filter:blur(10px);
    backdrop-filter:blur(10px);
    border-top:1px solid var(--line);box-shadow:var(--sh2);
    transform:translateY(110%);transition:transform 220ms ease;
  }
  .mobile-bar.is-visible{transform:translateY(0);}
  .mobile-bar .btn{flex:7;height:44px;font-size:14.5px;}
  .mobile-bar .link{flex:3;text-align:center;font-size:13.5px;color:var(--stadium);font-weight:600;}
}

/* roulang page: category1 */
:root{
  --stadium:#0E3B33;
  --ink:#08251F;
  --stadium-light:#1A5A4C;
  --lime:#C9F24C;
  --ember:#FF7A2F;
  --paper:#F4F6F2;
  --alt:#E9EEE7;
  --white:#FFFFFF;
  --text:#12211E;
  --muted:#4A5C57;
  --weak:#8A9995;
  --line:#D8E0DA;
  --ok:#1F8A5B;
  --warn:#D9822B;
  --err:#C0453A;
  --info:#2C7A8C;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(14,59,51,.06);
  --sh2:0 8px 24px -8px rgba(14,59,51,.18);
  --sh3:0 18px 48px -16px rgba(14,59,51,.28);
  --container:1200px;
  --narrow:760px;
  --t:200ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
}
img{max-width:100%;display:block;height:auto}
a{color:var(--stadium);text-decoration:none;transition:color var(--t),background-color var(--t),border-color var(--t),transform var(--t)}
a:hover{color:var(--stadium-light)}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;line-height:1.35;letter-spacing:.01em}
h1{font-size:44px;line-height:1.25}
h2{font-size:30px}
h3{font-size:21px;font-weight:600}
h4{font-size:17px;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:none;background:none;color:inherit}
input{font-family:inherit}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section--alt{background:var(--alt)}
.section--dark{background:var(--stadium);color:#F2F7F4}
.section--dark h2,.section--dark h3{color:#F2F7F4}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.06em;font-weight:600;
  color:var(--stadium);background:rgba(14,59,51,.08);
  padding:6px 14px;border-radius:var(--r-pill);
}
.section-head{max-width:720px;margin-bottom:36px}
.section-head .lead{margin-top:12px;color:var(--muted);font-size:16.5px}

/* ===== Header / Nav ===== */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(244,246,242,.86);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background-color var(--t),border-color var(--t),box-shadow var(--t);
}
.site-header.is-stuck{background:var(--paper);border-bottom-color:var(--line);box-shadow:var(--sh1)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;display:grid;place-items:center;
  border-radius:var(--r-md);background:var(--stadium);color:var(--lime);
}
.brand-mark svg{width:24px;height:24px;stroke-width:1.75}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-main{font-size:17px;font-weight:700;letter-spacing:.01em}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.08em}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  position:relative;padding:9px 14px;border-radius:var(--r-pill);
  font-size:15px;color:var(--muted);font-weight:500;
}
.nav-links a::after{
  content:"";position:absolute;left:50%;right:50%;bottom:4px;height:2px;
  background:var(--lime);border-radius:2px;transition:left var(--t),right var(--t);
}
.nav-links a:hover{color:var(--stadium);background:rgba(14,59,51,.05)}
.nav-links a:hover::after{left:14px;right:14px}
.nav-links a.is-active{
  color:var(--stadium);font-weight:700;background:rgba(201,242,76,.14);
}
.nav-links a.is-active::after{left:14px;right:14px}
.nav-cta{display:flex;align-items:center;gap:12px}
.burger{
  display:none;width:44px;height:44px;border-radius:var(--r-md);
  border:1px solid var(--line);place-items:center;color:var(--stadium);background:var(--white);
}
.burger svg{width:22px;height:22px;stroke-width:1.75}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-md);
  font-size:15.5px;font-weight:600;white-space:nowrap;
  transition:transform var(--t),filter var(--t),background-color var(--t),box-shadow var(--t),border-color var(--t);
}
.btn svg{width:18px;height:18px;stroke-width:1.75}
.btn-primary{background:var(--lime);color:var(--ink);box-shadow:var(--sh1)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);color:var(--ink);box-shadow:var(--sh2)}
.btn-primary:active{transform:none;box-shadow:inset 0 2px 6px rgba(8,37,31,.18)}
.btn-ghost{background:transparent;color:var(--stadium);border:1.5px solid var(--stadium)}
.btn-ghost:hover{background:rgba(14,59,51,.06);transform:translateY(-1px);color:var(--stadium)}
.btn-ghost:active{transform:none}
.btn-light{background:#F2F7F4;color:var(--stadium)}
.btn-light:hover{transform:translateY(-1px);color:var(--stadium);filter:brightness(1.04)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--stadium);
}
.btn-text svg{width:18px;height:18px;stroke-width:1.75;transition:transform var(--t)}
.btn-text:hover svg{transform:translateX(4px)}
.btn[disabled],.btn.is-disabled{filter:saturate(.4);cursor:not-allowed;transform:none;box-shadow:none}

/* ===== Breadcrumb / Banner ===== */
.breadcrumb{padding:20px 0 0}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--weak)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li::after{content:"/";color:var(--line)}
.breadcrumb li:last-child::after{display:none}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--stadium)}
.breadcrumb .current{color:var(--text);font-weight:600}

.banner{
  position:relative;margin-top:20px;border-radius:var(--r-lg);overflow:hidden;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  box-shadow:var(--sh2);
}
.banner::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(8,37,31,.70) 0%,rgba(8,37,31,.56) 60%,rgba(8,37,31,.62) 100%)}
.banner-inner{position:relative;padding:64px 56px;max-width:820px}
.banner .tagline{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(201,242,76,.16);color:var(--lime);font-size:12.5px;font-weight:600;letter-spacing:.06em;
}
.banner h1{color:#F2F7F4;margin:18px 0 14px;font-size:42px}
.banner .intro{color:rgba(242,247,244,.86);font-size:17px;max-width:640px}
.banner-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:var(--r-pill);
  background:rgba(244,246,242,.14);border:1px solid rgba(244,246,242,.24);
  color:#F2F7F4;font-size:13.5px;
}
.chip svg{width:16px;height:16px;stroke-width:1.75;color:var(--lime)}

/* ===== Info strip ===== */
.strip{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:-38px;position:relative;z-index:2}
.strip-item{
  background:var(--white);border:1px solid var(--line);border-radius:14px;
  padding:22px 24px;box-shadow:var(--sh2);transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.strip-item:hover{transform:translateY(-3px);box-shadow:var(--sh3);border-color:rgba(14,59,51,.18)}
.strip-item .k{font-size:13px;color:var(--weak);letter-spacing:.06em}
.strip-item .v{font-size:20px;font-weight:700;color:var(--stadium);margin-top:6px}
.strip-item .d{font-size:14.5px;color:var(--muted);margin-top:6px}

/* ===== Alternating rows ===== */
.rows{display:flex;flex-direction:column;gap:80px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.row--flip .row-media{order:2}
.row-media{position:relative}
.row-media img{border-radius:var(--r-lg);box-shadow:var(--sh2);aspect-ratio:16/10;object-fit:cover;width:100%}
.row-media .badge-float{
  position:absolute;left:-14px;bottom:22px;background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-md);padding:12px 18px;box-shadow:var(--sh2);
}
.row-media .badge-float .n{font-size:22px;font-weight:700;color:var(--stadium);font-variant-numeric:tabular-nums}
.row-media .badge-float .t{font-size:12.5px;color:var(--weak)}
.row-body h2{margin-bottom:12px}
.row-body p{color:var(--muted);margin-bottom:14px}
.check-list{margin-top:18px;display:flex;flex-direction:column;gap:12px}
.check-list li{display:flex;gap:10px;font-size:15.5px;color:var(--text)}
.check-list li svg{width:20px;height:20px;flex:0 0 20px;margin-top:4px;stroke-width:1.75;color:var(--stadium)}
.check-list li span b{font-weight:600}
.note-inline{
  margin-top:20px;display:flex;gap:10px;padding:14px 18px;border-radius:var(--r-md);
  background:rgba(255,122,47,.08);border-left:3px solid var(--ember);
  font-size:14.5px;color:var(--muted);
}
.note-inline svg{width:20px;height:20px;flex:0 0 20px;margin-top:3px;stroke-width:1.75;color:var(--ember)}

/* ===== Cards ===== */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:var(--white);border:1px solid var(--line);border-radius:14px;padding:24px;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh3);border-color:rgba(14,59,51,.18)}
.card h3{margin-bottom:10px}
.card p{color:var(--muted);font-size:15px}
.link-card{display:flex;flex-direction:column;gap:14px}
.link-card .top{display:flex;align-items:center;justify-content:space-between}
.link-card .arrow{width:34px;height:34px;border-radius:var(--r-pill);display:grid;place-items:center;background:rgba(14,59,51,.07);color:var(--stadium);transition:background-color var(--t),transform var(--t)}
.link-card:hover .arrow{background:var(--lime);transform:translateX(3px)}
.link-card .arrow svg{width:18px;height:18px;stroke-width:1.75}
.badge{display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--r-pill);font-size:12px;font-weight:600;letter-spacing:.04em}
.badge-strong{background:var(--lime);color:var(--ink)}
.badge-weak{background:rgba(14,59,51,.08);color:var(--stadium)}

/* ===== FAQ ===== */
.faq{display:flex;flex-direction:column;gap:12px;max-width:860px}
.faq-item{background:var(--white);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:12px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
}
.faq-q:hover{background:rgba(14,59,51,.03)}
.faq-q .plus{
  width:26px;height:26px;flex:0 0 26px;display:grid;place-items:center;border-radius:var(--r-pill);
  border:1px solid var(--line);color:var(--stadium);transition:transform 220ms ease,background-color var(--t);
}
.faq-q .plus svg{width:16px;height:16px;stroke-width:2}
.faq-item.is-open .faq-q .plus{transform:rotate(45deg);background:var(--lime);border-color:var(--lime)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 220ms ease;background:var(--paper)}
.faq-a .inner{padding:18px 24px 22px;font-size:15px;color:var(--muted)}
.faq-item.is-open .faq-a{max-height:420px}

/* ===== CTA bar ===== */
.cta-bar{background:var(--stadium);border-radius:var(--r-lg);padding:36px 44px;display:flex;align-items:center;justify-content:space-between;gap:28px;position:relative;overflow:hidden}
.cta-bar::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,242,76,.22),transparent 70%);
}
.cta-bar h2{color:#F2F7F4;font-size:26px}
.cta-bar p{color:rgba(242,247,244,.78);margin-top:8px;font-size:15.5px}
.cta-bar .actions{display:flex;align-items:center;gap:18px;position:relative;z-index:1}
.cta-bar .link-light{color:#F2F7F4;font-size:14.5px;border-bottom:1px solid rgba(242,247,244,.4)}
.cta-bar .link-light:hover{color:var(--lime);border-color:var(--lime)}

/* ===== Floating CTA ===== */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:80;
  display:inline-flex;align-items:center;gap:8px;height:52px;padding:0 22px;
  border-radius:var(--r-pill);background:var(--lime);color:var(--ink);font-weight:600;
  box-shadow:var(--sh3);opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity 240ms ease,transform 240ms ease,filter var(--t);
}
.float-cta svg{width:18px;height:18px;stroke-width:1.75}
.float-cta.is-show{opacity:1;transform:none;pointer-events:auto}
.float-cta:hover{filter:brightness(1.06);transform:translateY(-2px);color:var(--ink)}
.mobile-bar{display:none}

/* ===== Footer ===== */
.site-footer{background:var(--ink);color:rgba(242,247,244,.82);position:relative}
.site-footer::before{
  content:"";position:absolute;inset:0 0 auto 0;height:2px;
  background:linear-gradient(90deg,transparent,rgba(201,242,76,.55),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding:64px 0 40px}
.footer-brand .brand{margin-bottom:16px;color:#F2F7F4}
.footer-brand .brand-mark{background:rgba(242,247,244,.08)}
.footer-brand p{font-size:14.5px;line-height:1.85;color:rgba(242,247,244,.7);max-width:380px}
.footer-col h3{
  font-size:14px;color:rgba(242,247,244,.7);font-weight:600;letter-spacing:.04em;
  display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;
}
.footer-col h3 svg{width:16px;height:16px;stroke-width:1.75;display:none}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{color:rgba(242,247,244,.82);font-size:14.5px;transition:color var(--t),transform var(--t)}
.footer-links a:hover{color:var(--lime);transform:translateX(2px)}
.footer-bottom{
  border-top:1px solid rgba(242,247,244,.14);padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.footer-bottom .meta{display:flex;gap:20px;flex-wrap:wrap;font-size:13.5px;color:rgba(242,247,244,.62)}
.to-top{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 16px;border-radius:var(--r-md);
  border:1px solid rgba(242,247,244,.24);color:#F2F7F4;font-size:13.5px;
  transition:background-color var(--t),border-color var(--t),color var(--t);
}
.to-top svg{width:16px;height:16px;stroke-width:1.75}
.to-top:hover{background:rgba(201,242,76,.14);border-color:var(--lime);color:var(--lime)}

/* ===== Drawer ===== */
.drawer-mask{
  position:fixed;inset:0;background:rgba(8,37,31,.5);z-index:200;
  opacity:0;pointer-events:none;transition:opacity 220ms ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:260px;background:var(--white);z-index:201;
  transform:translateX(100%);transition:transform 240ms ease;display:flex;flex-direction:column;
  box-shadow:var(--sh3);
}
.drawer.is-open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--line)}
.drawer-head span{font-size:14px;color:var(--weak)}
.drawer-close{width:40px;height:40px;display:grid;place-items:center;border-radius:var(--r-md);color:var(--stadium)}
.drawer-close svg{width:20px;height:20px;stroke-width:1.75}
.drawer nav{display:flex;flex-direction:column;padding:8px 0;flex:1}
.drawer nav a{height:48px;display:flex;align-items:center;padding:0 20px;font-size:15px;color:var(--text);border-bottom:1px solid var(--line)}
.drawer nav a.is-active{color:var(--stadium);font-weight:700;background:rgba(201,242,76,.14)}
.drawer-foot{padding:16px 18px;border-top:1px solid var(--line)}
.drawer-foot .btn{width:100%;height:44px}

/* ===== Responsive ===== */
@media (max-width:1279px){
  .container{padding:0 28px}
}
@media (max-width:1023px){
  .nav{height:64px}
  .nav-links,.nav-cta .btn{display:none}
  .burger{display:grid}
  .container{padding:0 24px}
  h1{font-size:34px}
  .banner h1{font-size:34px}
  .banner-inner{padding:48px 36px}
  .section{padding:72px 0}
  .strip{grid-template-columns:1fr;gap:16px;margin-top:24px}
  .rows{gap:64px}
  .row{grid-template-columns:1fr;gap:28px}
  .row--flip .row-media{order:0}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 32px}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:30px 28px}
  h2{font-size:26px}
}
@media (max-width:639px){
  .container{padding:0 18px}
  h1{font-size:28px}
  .banner-inner{padding:36px 22px}
  .banner h1{font-size:28px}
  .banner .intro{font-size:15.5px}
  .section{padding:56px 0}
  .card-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:0;padding:40px 0 20px}
  .footer-col{border-bottom:1px solid rgba(242,247,244,.14);padding:16px 0}
  .footer-col h3{margin-bottom:0;cursor:pointer;padding:6px 0}
  .footer-col h3 svg{display:block}
  .footer-links{max-height:0;overflow:hidden;transition:max-height 220ms ease;gap:0}
  .footer-links a{padding:11px 0;border-bottom:1px dashed rgba(242,247,244,.12)}
  .footer-col.is-open .footer-links{max-height:420px;padding-top:8px}
  .footer-brand p{max-width:none}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px}
  .float-cta{display:none}
  .mobile-bar{
    display:flex;position:fixed;left:0;right:0;bottom:0;height:56px;z-index:80;
    background:var(--paper);border-top:1px solid var(--line);box-shadow:0 -6px 20px -10px rgba(14,59,51,.28);
    padding:8px 12px;gap:10px;
  }
  .mobile-bar .btn{height:40px;padding:0 16px;font-size:14.5px}
  .mobile-bar .btn-primary{flex:0 0 70%}
  .mobile-bar .btn-ghost{flex:1}
  .faq-q{min-height:52px;padding:12px 16px;font-size:15px}
  .faq-a .inner{padding:16px 18px 20px}
  .cta-bar{padding:26px 20px;border-radius:14px}
  .row-media .badge-float{left:12px;bottom:12px}
  body{padding-bottom:56px}
}

/* roulang page: article */
:root{
  --stadium:#0E3B33;
  --ink:#08251F;
  --stadium-light:#1A5A4C;
  --lime:#C9F24C;
  --ember:#FF7A2F;
  --paper:#F4F6F2;
  --alt:#E9EEE7;
  --dark:#0E3B33;
  --footer:#08251F;
  --text:#12211E;
  --text-2:#4A5C57;
  --text-3:#8A9995;
  --invert:#F2F7F4;
  --line:#D8E0DA;
  --ok:#1F8A5B;
  --warn:#D9822B;
  --err:#C0453A;
  --info:#2C7A8C;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(14,59,51,.06);
  --sh2:0 8px 24px -8px rgba(14,59,51,.18);
  --sh3:0 18px 48px -16px rgba(14,59,51,.28);
  --container:1200px;
  --narrow:760px;
  --ease:180ms ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,textarea{font:inherit;}
h1,h2,h3,h4,p{margin:0;}
ul,ol{margin:0;padding:0;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px;}
::selection{background:var(--lime);color:var(--ink);}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.narrow{max-width:var(--narrow);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(244,246,242,.86);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.site-header.is-scrolled{
  background:var(--paper);
  border-bottom-color:var(--line);
  box-shadow:var(--sh1);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--stadium);color:var(--lime);
  box-shadow:var(--sh1);flex:none;
}
.brand-mark svg{width:22px;height:22px;stroke-width:1.75;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-main{font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--ink);}
.brand-sub{font-size:11px;color:var(--text-2);letter-spacing:.06em;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
  position:relative;display:inline-block;
  padding:8px 14px;border-radius:var(--r-pill);
  font-size:15px;color:var(--text-2);
  transition:color var(--ease),background var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:2px;height:2px;width:0;
  background:var(--lime);border-radius:2px;transform:translateX(-50%);
  transition:width 200ms ease;
}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after{width:22px;}
.nav-links a.is-active{
  color:var(--stadium);font-weight:700;
  background:rgba(201,242,76,.14);
}
.nav-links a.is-active::after{width:22px;}
.nav-cta{display:flex;align-items:center;gap:12px;}

.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:600;white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),filter var(--ease);
}
.btn svg{width:18px;height:18px;stroke-width:1.75;transition:transform var(--ease);}
.btn-primary{background:var(--lime);color:var(--ink);box-shadow:var(--sh1);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--sh2);}
.btn-primary:active{transform:none;box-shadow:inset 0 2px 6px rgba(8,37,31,.22);}
.btn-ghost{background:transparent;color:var(--stadium);border:1.5px solid var(--stadium);}
.btn-ghost:hover{background:rgba(14,59,51,.06);transform:translateY(-1px);}
.btn-ghost:active{transform:none;box-shadow:inset 0 2px 6px rgba(8,37,31,.16);}
.btn-sm{height:44px;padding:0 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{filter:saturate(.4);opacity:.75;pointer-events:none;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--stadium);font-weight:600;font-size:15px;
}
.btn-text svg{width:18px;height:18px;stroke-width:1.75;transition:transform var(--ease);}
.btn-text:hover svg{transform:translateX(4px);}
.burger{
  display:none;width:44px;height:44px;border-radius:var(--r-md);
  align-items:center;justify-content:center;
  border:1px solid var(--line);background:#fff;color:var(--ink);
}
.burger svg{width:22px;height:22px;stroke-width:1.75;}

.drawer-mask{
  position:fixed;inset:0;background:rgba(8,37,31,.5);z-index:200;
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:260px;z-index:210;
  background:var(--paper);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform 220ms ease;
  display:flex;flex-direction:column;padding:20px 18px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--line);}
.drawer-close{width:40px;height:40px;border-radius:var(--r-md);display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);background:#fff;}
.drawer-close svg{width:20px;height:20px;stroke-width:1.75;}
.drawer-links{display:flex;flex-direction:column;margin-top:8px;}
.drawer-links a{
  display:flex;align-items:center;height:48px;font-size:15px;color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.drawer-links a.is-active{color:var(--stadium);font-weight:700;}
.drawer-foot{margin-top:auto;padding-top:18px;}

/* ---------- 页面主体 ---------- */
.page-main{padding-bottom:0;}
.crumbs{
  padding:22px 0 0;
  font-size:13px;color:var(--text-3);
}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;}
.crumbs li{display:inline-flex;align-items:center;gap:8px;max-width:100%;}
.crumbs li+li::before{content:"/";color:var(--line);}
.crumbs a{color:var(--text-2);}
.crumbs a:hover{color:var(--stadium);text-decoration:underline;text-underline-offset:3px;}
.crumbs .current{
  color:var(--text);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* 文章头 */
.article-head{
  position:relative;overflow:hidden;
  margin-top:18px;border-radius:var(--r-lg);
  background:var(--stadium);
  color:var(--invert);
  padding:44px 40px 40px;
  box-shadow:var(--sh2);
}
.article-head::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.28;
}
.article-head::after{
  content:"";position:absolute;right:-120px;bottom:-140px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,242,76,.22),rgba(201,242,76,0) 68%);
}
.article-head .inner{position:relative;z-index:1;max-width:820px;}
.article-head h1{
  font-size:40px;line-height:1.25;font-weight:700;letter-spacing:.01em;
  margin:16px 0 14px;color:#fff;
}
.article-head .lead{
  font-size:16px;line-height:1.8;color:rgba(242,247,244,.82);max-width:680px;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.06em;font-weight:600;
}
.badge-lime{background:var(--lime);color:var(--ink);}
.badge-soft{background:rgba(14,59,51,.08);color:var(--stadium);}
.badge-glass{background:rgba(242,247,244,.16);color:#fff;border:1px solid rgba(242,247,244,.28);}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;
  margin-top:22px;font-size:13px;color:rgba(242,247,244,.78);
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:rgba(201,242,76,.8);}
.meta-row span{display:inline-flex;align-items:center;gap:8px;}

/* 正文布局 */
.article-layout{
  display:grid;grid-template-columns:minmax(0,760px) 220px;
  gap:56px;justify-content:center;
  padding:56px 0 0;
}
.article-main{min-width:0;}
.article-note{
  display:flex;gap:14px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--lime);
  border-radius:var(--r-md);padding:16px 20px;margin-bottom:32px;
  box-shadow:var(--sh1);
}
.article-note svg{width:20px;height:20px;flex:none;margin-top:4px;color:var(--stadium-light);stroke-width:1.75;}
.article-note p{font-size:14px;line-height:1.7;color:var(--text-2);}

.article-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:40px 44px 48px;box-shadow:var(--sh1);
  font-size:17px;line-height:1.9;color:var(--text);
  overflow-wrap:break-word;word-wrap:break-word;
}
.article-body>*:first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  font-size:28px;line-height:1.35;font-weight:700;
  margin:32px 0 12px;padding-left:14px;
  border-left:4px solid var(--lime);
}
.article-body h3{font-size:21px;line-height:1.45;font-weight:600;margin:24px 0 10px;}
.article-body h4{font-size:17px;line-height:1.5;font-weight:600;margin:20px 0 8px;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:0;list-style:none;}
.article-body li{position:relative;padding-left:26px;margin-bottom:10px;}
.article-body ul>li::before{
  content:"";position:absolute;left:4px;top:.72em;
  width:8px;height:8px;border-radius:2px;background:var(--lime);
  box-shadow:0 0 0 1px rgba(14,59,51,.22);
}
.article-body ol{counter-reset:li;}
.article-body ol>li{counter-increment:li;}
.article-body ol>li::before{
  content:counter(li,decimal-leading-zero);
  position:absolute;left:0;top:0;
  font-size:13px;font-weight:700;color:var(--stadium-light);
  font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:0 0 1.2em;padding:20px 22px;
  background:var(--paper);border-left:3px solid var(--lime);
  border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--text-2);font-size:16px;line-height:1.9;
}
.article-body strong{color:var(--ink);font-weight:700;}
.article-body a{
  color:var(--stadium);text-decoration:underline;
  text-decoration-thickness:1px;text-underline-offset:3px;
  transition:background var(--ease),color var(--ease);
}
.article-body a:hover{background:var(--lime);color:var(--ink);text-decoration-color:transparent;}
.article-body img{border-radius:12px;margin:0 auto;height:auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px;}
.article-body hr{border:0;border-top:1px dashed var(--line);margin:32px 0;}
.article-body table{
  width:100%;border-collapse:collapse;font-size:15px;
  display:block;overflow-x:auto;margin:0 0 1.2em;
}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body th{background:var(--alt);font-weight:600;}
.article-body code{background:var(--alt);border-radius:6px;padding:2px 6px;font-size:15px;}

/* 目录 */
.toc{
  position:sticky;top:96px;align-self:start;
  border-left:1px solid var(--line);padding-left:20px;
}
.toc h2{font-size:13px;letter-spacing:.06em;color:var(--text-3);font-weight:700;margin-bottom:12px;}
.toc ol{list-style:none;display:flex;flex-direction:column;gap:2px;}
.toc a{
  display:block;font-size:13.5px;line-height:1.6;color:var(--text-2);
  padding:6px 0 6px 12px;border-left:2px solid transparent;margin-left:-21px;
  transition:color var(--ease),border-color var(--ease);
}
.toc a:hover{color:var(--stadium);}
.toc a.is-current{color:var(--stadium);font-weight:700;border-left-color:var(--lime);}
.toc a.lv3{padding-left:24px;font-size:13px;color:var(--text-3);}

/* 尾部 */
.article-foot{padding:40px 0 0;}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
.tag-row .label{font-size:13px;color:var(--text-3);letter-spacing:.06em;}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:var(--r-pill);background:rgba(14,59,51,.08);
  color:var(--stadium);font-size:13px;transition:background var(--ease),color var(--ease);
}
.tag:hover{background:var(--lime);color:var(--ink);}
.foot-actions{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  margin-top:26px;padding-top:24px;border-top:1px solid var(--line);
}

/* CTA 横条 */
.cta-strip{
  margin-top:72px;background:var(--dark);color:var(--invert);
  position:relative;overflow:hidden;
}
.cta-strip::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;opacity:.16;
}
.cta-strip .container{position:relative;z-index:1;}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:40px 0;
}
.cta-inner h2{font-size:26px;line-height:1.35;font-weight:700;color:#fff;}
.cta-inner p{margin-top:8px;font-size:14px;color:rgba(242,247,244,.76);}
.cta-inner .actions{display:flex;align-items:center;gap:18px;flex:none;}
.cta-inner .link{
  color:rgba(242,247,244,.86);font-size:14px;
  border-bottom:1px solid rgba(201,242,76,.6);padding-bottom:2px;
}
.cta-inner .link:hover{color:var(--lime);}

/* 空态 */
.empty-state{
  border:1.5px dashed var(--line);border-radius:var(--r-lg);
  background:#fff;padding:64px 24px;text-align:center;
}
.empty-state svg{width:40px;height:40px;margin:0 auto 16px;color:var(--text-3);stroke-width:1.5;}
.empty-state p{font-size:14px;color:var(--text-2);margin-bottom:20px;}

/* 浮动 CTA */
.float-cta{
  position:fixed;right:32px;bottom:32px;z-index:80;
  display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-pill);
  background:var(--lime);color:var(--ink);font-weight:600;font-size:14px;
  box-shadow:var(--sh2);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity 220ms ease,transform 220ms ease,visibility 220ms ease,filter var(--ease);
}
.float-cta svg{width:18px;height:18px;stroke-width:1.75;}
.float-cta.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{filter:brightness(1.05);box-shadow:var(--sh3);}
.mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:80;
  height:56px;padding:6px 12px;gap:10px;
  background:rgba(244,246,242,.96);backdrop-filter:blur(8px);
  border-top:1px solid var(--line);box-shadow:var(--sh2);
}
.mobile-bar .btn{flex:0 0 70%;height:44px;}
.mobile-bar .alt{flex:1;display:inline-flex;align-items:center;justify-content:center;font-size:13px;color:var(--stadium);}

/* 页脚 */
.site-footer{
  margin-top:0;background:var(--footer);color:var(--invert);
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:120px;
  background-image:linear-gradient(90deg,rgba(201,242,76,.08) 1px,transparent 1px);
  background-size:64px 100%;opacity:.5;pointer-events:none;
}
.footer-grid{
  position:relative;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;padding:64px 0 48px;
}
.footer-brand .brand-main{color:#fff;}
.footer-brand .brand-sub{color:rgba(242,247,244,.6);}
.footer-brand .brand-mark{background:rgba(201,242,76,.14);color:var(--lime);}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.8;color:rgba(242,247,244,.66);max-width:360px;}
.footer-col h3{
  display:flex;align-items:center;justify-content:space-between;
  font-size:14px;font-weight:600;color:rgba(242,247,244,.7);margin-bottom:16px;
}
.footer-col h3 svg{width:16px;height:16px;stroke-width:1.75;display:none;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{
  font-size:14px;color:rgba(242,247,244,.82);
  transition:color var(--ease),transform var(--ease);
}
.footer-links a:hover{color:var(--lime);transform:translateX(2px);}
.footer-bottom{
  position:relative;border-top:1px solid rgba(242,247,244,.14);
  padding:20px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom .meta{display:flex;flex-wrap:wrap;gap:8px 20px;font-size:13px;color:rgba(242,247,244,.6);}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid rgba(242,247,244,.24);color:rgba(242,247,244,.86);font-size:13px;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.to-top svg{width:16px;height:16px;stroke-width:1.75;}
.to-top:hover{background:rgba(201,242,76,.14);border-color:rgba(201,242,76,.5);color:var(--lime);}

/* 响应式 */
@media (max-width:1279px){
  .article-head h1{font-size:36px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .nav-links{display:none;}
  .burger{display:inline-flex;}
  .nav{height:64px;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;padding-top:40px;}
  .toc{display:none;}
  .article-head{padding:36px 28px 32px;}
  .article-head h1{font-size:32px;}
  .article-body{padding:32px 28px 36px;font-size:16.5px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 36px;}
  .footer-col h3 svg{display:block;}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:36px 0;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .article-head{border-radius:var(--r-md);padding:28px 20px 26px;}
  .article-head h1{font-size:28px;margin:12px 0 12px;}
  .article-head .lead{font-size:15px;}
  .meta-row{font-size:12.5px;margin-top:18px;}
  .article-body{padding:24px 18px 28px;font-size:16px;line-height:1.9;}
  .article-body h2{font-size:23px;margin:26px 0 10px;}
  .article-body h3{font-size:19px;}
  .crumbs{padding-top:16px;}
  .float-cta{display:none;}
  .mobile-bar{display:flex;}
  .site-footer{padding-bottom:56px;}
  .footer-grid{grid-template-columns:1fr;gap:0;padding:40px 0 24px;}
  .footer-col{border-bottom:1px solid rgba(242,247,244,.14);padding:14px 0;}
  .footer-col h3{margin-bottom:0;}
  .footer-col .footer-links{
    max-height:0;overflow:hidden;transition:max-height 240ms ease;gap:10px;
  }
  .footer-col.is-open .footer-links{max-height:260px;margin-top:14px;}
  .footer-brand{border-bottom:1px solid rgba(242,247,244,.14);padding-bottom:24px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .foot-actions{flex-direction:column;align-items:stretch;}
  .foot-actions .btn{width:100%;}
  .cta-inner h2{font-size:22px;}
}
@media (max-width:519px){
  .article-head h1{font-size:26px;}
  .btn{padding:0 18px;}
  .badge{font-size:11px;}
  .meta-row .dot{display:none;}
}

/* roulang page: category2 */
:root{
  --stadium:#0E3B33;
  --ink:#08251F;
  --stadium-light:#1A5A4C;
  --lime:#C9F24C;
  --ember:#FF7A2F;
  --paper:#F4F6F2;
  --paper-alt:#E9EEE7;
  --white:#FFFFFF;
  --text:#12211E;
  --text-2:#4A5C57;
  --text-3:#8A9995;
  --line:#D8E0DA;
  --inverse:#F2F7F4;
  --ok:#1F8A5B;
  --warn:#D9822B;
  --err:#C0453A;
  --info:#2C7A8C;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(14,59,51,.06);
  --sh2:0 8px 24px -8px rgba(14,59,51,.18);
  --sh3:0 18px 48px -16px rgba(14,59,51,.28);
  --ease:180ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease),transform var(--ease)}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0;color:var(--text)}
h1{font-size:clamp(28px,4.2vw,44px);line-height:1.25}
h2{font-size:clamp(24px,3vw,31px);line-height:1.35}
h3{font-size:21px;line-height:1.45;font-weight:600}
h4{font-size:17px;line-height:1.5;font-weight:600}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
svg{width:20px;height:20px;stroke-width:1.75;flex-shrink:0}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
::selection{background:var(--lime);color:var(--ink)}

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

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(244,246,242,.86);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.site-header.is-scrolled{
  background:rgba(244,246,242,.98);
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh1);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
.brand{display:inline-flex;align-items:center;gap:11px}
.brand-mark{
  width:40px;height:40px;border-radius:11px;display:grid;place-items:center;
  background:var(--stadium);color:var(--lime);box-shadow:var(--sh1);
}
.brand-mark svg{width:23px;height:23px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-main{font-size:17px;font-weight:700;color:var(--stadium);letter-spacing:.01em}
.brand-sub{font-size:11.5px;color:var(--text-3);letter-spacing:.06em}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-links a{
  position:relative;display:inline-block;padding:9px 14px;border-radius:var(--r-pill);
  font-size:15px;color:var(--text-2);transition:color var(--ease),background var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:50%;right:50%;bottom:3px;height:2px;background:var(--lime);
  transition:left var(--ease),right var(--ease);
}
.nav-links a:hover{color:var(--stadium)}
.nav-links a:hover::after{left:14px;right:14px}
.nav-links a.is-active{
  color:var(--stadium);font-weight:700;background:rgba(201,242,76,.14);
}
.nav-links a.is-active::after{left:14px;right:14px}
.nav-cta{display:flex;align-items:center;gap:12px}
.burger{
  display:none;width:44px;height:44px;border-radius:var(--r-md);
  align-items:center;justify-content:center;color:var(--stadium);
  border:1px solid var(--line);background:var(--white);
}
.burger:hover{background:var(--paper-alt)}

/* ---------- 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:15.5px;font-weight:600;border:1.5px solid transparent;
  transition:all var(--ease);white-space:nowrap;
}
.btn svg{width:20px;height:20px}
.btn-primary{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-primary:active{transform:none;box-shadow:inset 0 2px 6px rgba(8,37,31,.2)}
.btn-outline{background:transparent;border-color:var(--stadium);color:var(--stadium)}
.btn-outline:hover{background:rgba(14,59,51,.06);transform:translateY(-1px)}
.btn-outline:active{transform:none;box-shadow:inset 0 2px 6px rgba(14,59,51,.12)}
.btn-on-dark{background:transparent;border-color:rgba(242,247,244,.45);color:var(--inverse)}
.btn-on-dark:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-1px)}
.btn-sm{height:44px;padding:0 20px;font-size:15px}
.btn[disabled],.btn.is-disabled{
  filter:saturate(.4);opacity:.75;pointer-events:none;box-shadow:none;
}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--stadium);
  font-weight:600;font-size:15px;
}
.btn-text svg{width:18px;height:18px;transition:transform var(--ease)}
.btn-text:hover svg{transform:translateX(4px)}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(242,247,244,.72);flex-wrap:wrap}
.crumb a{color:rgba(242,247,244,.82)}
.crumb a:hover{color:var(--lime)}
.crumb .sep{opacity:.55}
.crumb .current{color:var(--lime)}

/* ---------- 页头横幅 ---------- */
.page-banner{
  position:relative;overflow:hidden;
  background:var(--ink) url("/assets/images/backpic/back-1.png") center/cover no-repeat;
  padding:56px 0 68px;
  color:var(--inverse);
}
.page-banner::before{
  content:"";position:absolute;inset:0;background:rgba(8,37,31,.62);
}
.page-banner::after{
  content:"";position:absolute;right:-120px;bottom:-140px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,242,76,.22),transparent 68%);
}
.page-banner .inner{position:relative;z-index:1;max-width:820px}
.page-banner h1{color:var(--inverse);margin:20px 0 14px;letter-spacing:.01em}
.page-banner .lead{font-size:17px;color:rgba(242,247,244,.86);max-width:660px}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.banner-tags span{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:var(--r-pill);font-size:13px;
  background:rgba(242,247,244,.12);border:1px solid rgba(242,247,244,.22);color:rgba(242,247,244,.92);
}
.banner-tags svg{width:15px;height:15px;color:var(--lime)}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-alt{background:var(--paper-alt)}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.06em;color:var(--stadium);
  background:rgba(201,242,76,.28);border-radius:var(--r-pill);padding:5px 13px;font-weight:600;
}
.section-head h2{margin:16px 0 12px}
.section-head p{color:var(--text-2);font-size:16px}

/* ---------- 流程总览 ---------- */
.overview{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.overview-list{display:flex;flex-direction:column;gap:0;margin-top:28px}
.overview-list li{
  display:flex;gap:16px;padding:16px 0;border-bottom:1px dashed var(--line);
}
.overview-list li:last-child{border-bottom:0}
.ov-num{
  font-size:24px;font-weight:700;color:var(--ember);line-height:1.3;
  font-variant-numeric:tabular-nums;min-width:42px;
}
.ov-body h4{margin-bottom:4px}
.ov-body p{font-size:14.5px;color:var(--text-2);line-height:1.75}
.overview-figure{position:relative}
.overview-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);
  border:1px solid var(--line);box-shadow:var(--sh2);
}
.figure-badge{
  position:absolute;left:-18px;bottom:24px;
  background:rgba(244,246,242,.92);backdrop-filter:blur(8px);
  border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh2);
  padding:14px 18px;display:flex;align-items:center;gap:12px;
}
.figure-badge .dot{width:10px;height:10px;border-radius:50%;background:var(--lime)}
.figure-badge strong{font-size:15px;color:var(--stadium);display:block;line-height:1.3}
.figure-badge span{font-size:12.5px;color:var(--text-3)}

/* ---------- 时间轴 ---------- */
.timeline{max-width:880px;margin:0 auto;position:relative}
.tl-step{position:relative;display:grid;grid-template-columns:64px 1fr;gap:26px;padding-bottom:38px}
.tl-step:last-child{padding-bottom:0}
.tl-step:not(:last-child)::before{
  content:"";position:absolute;left:31px;top:68px;bottom:6px;width:2px;background:var(--line);
}
.tl-index{
  position:relative;z-index:1;width:64px;height:64px;border-radius:50%;
  display:grid;place-items:center;background:var(--paper);
  border:2px solid var(--line);color:var(--stadium);
  font-size:19px;font-weight:700;font-variant-numeric:tabular-nums;
  transition:all var(--ease);
}
.tl-step:hover .tl-index{background:var(--lime);border-color:var(--lime);color:var(--ink)}
.tl-card{
  background:var(--white);border:1px solid var(--line);border-radius:14px;
  padding:26px 30px;box-shadow:var(--sh1);transition:all var(--ease);
}
.tl-step:hover .tl-card{border-color:rgba(14,59,51,.18);box-shadow:var(--sh2);transform:translateY(-3px)}
.tl-card h3{margin-bottom:10px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tl-card p{color:var(--text-2);font-size:15.5px}
.tl-card p + p{margin-top:10px}
.tl-points{margin-top:16px;display:flex;flex-direction:column;gap:9px}
.tl-points li{display:flex;gap:10px;font-size:15px;color:var(--text-2)}
.tl-points li::before{
  content:"";width:8px;height:8px;background:var(--lime);border-radius:2px;
  margin-top:11px;flex-shrink:0;
}
.tip{
  margin-top:18px;background:var(--paper);border-left:3px solid var(--ember);
  border-radius:0 var(--r-md) var(--r-md) 0;padding:14px 18px;
  font-size:14.5px;color:var(--text-2);display:flex;gap:10px;
}
.tip svg{width:18px;height:18px;color:var(--ember);margin-top:4px}

/* ---------- 数据条 ---------- */
.risk{background:var(--stadium);color:var(--inverse);position:relative;overflow:hidden}
.risk::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(242,247,244,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(242,247,244,.055) 1px,transparent 1px);
  background-size:56px 56px;
}
.risk .container{position:relative;z-index:1}
.risk h2{color:var(--inverse)}
.risk .sub{color:rgba(242,247,244,.76);max-width:700px;margin-top:12px}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);margin-top:44px;border-top:1px solid rgba(242,247,244,.18)}
.stat{padding:28px 24px 0;border-left:1px solid rgba(242,247,244,.18)}
.stat:first-child{border-left:0;padding-left:0}
.stat b{display:block;font-size:clamp(30px,3.4vw,42px);font-weight:700;line-height:1.15;font-variant-numeric:tabular-nums;color:var(--lime)}
.stat span{display:block;margin-top:8px;font-size:13px;color:rgba(242,247,244,.72)}
.risk-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:52px}
.risk-card{
  background:var(--white);border-radius:14px;padding:24px;position:relative;
  border-left:3px solid var(--lime);box-shadow:var(--sh1);color:var(--text);
}
.risk-card h4{margin-bottom:8px;color:var(--stadium)}
.risk-card p{font-size:14.5px;color:var(--text-2);line-height:1.8}

/* ---------- 相关分类 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  display:flex;flex-direction:column;gap:12px;background:var(--white);
  border:1px solid var(--line);border-radius:14px;padding:26px;
  box-shadow:var(--sh1);transition:all var(--ease);
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sh3);border-color:rgba(14,59,51,.18)}
.rel-card .rel-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.rel-card h3{font-size:18px;color:var(--stadium)}
.rel-card p{font-size:14.5px;color:var(--text-2);line-height:1.8}
.rel-card .rel-go{display:inline-flex;align-items:center;gap:6px;color:var(--stadium);font-weight:600;font-size:14.5px;margin-top:auto}
.rel-card .rel-go svg{width:18px;height:18px;transition:transform var(--ease)}
.rel-card:hover .rel-go svg{transform:translateX(4px)}
.rel-icon{
  width:40px;height:40px;border-radius:11px;display:grid;place-items:center;
  background:rgba(201,242,76,.3);color:var(--stadium);
}
.rel-icon svg{width:21px;height:21px}

/* ---------- 底部 CTA ---------- */
.cta-bar{
  position:relative;overflow:hidden;color:var(--inverse);
  background:var(--ink) url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  padding:42px 0;
}
.cta-bar::before{content:"";position:absolute;inset:0;background:rgba(8,37,31,.72)}
.cta-bar .container{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-bar h2{color:var(--inverse);font-size:26px}
.cta-bar p{color:rgba(242,247,244,.78);margin-top:8px;font-size:15px}
.cta-actions{display:flex;align-items:center;gap:16px;flex-shrink:0}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:80;
  display:flex;align-items:center;gap:6px;padding:8px;
  background:rgba(244,246,242,.94);backdrop-filter:blur(10px);
  border:1px solid var(--line);border-radius:var(--r-pill);box-shadow:var(--sh3);
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity 220ms ease,transform 220ms ease;
}
.float-cta.is-visible{opacity:1;transform:none;pointer-events:auto}
.fc-main{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 18px;
  border-radius:var(--r-pill);background:var(--lime);color:var(--ink);
  font-weight:600;font-size:15px;
}
.fc-main:hover{filter:brightness(1.06)}
.fc-main svg{width:18px;height:18px}
.fc-sub{font-size:14px;color:var(--stadium);padding:0 14px}
.fc-sub:hover{color:var(--ember)}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(8,37,31,.5);z-index:200;
  opacity:0;pointer-events:none;transition:opacity 220ms ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:260px;background:var(--white);z-index:201;
  transform:translateX(100%);transition:transform 220ms ease;
  display:flex;flex-direction:column;padding:18px 0;
}
.drawer.is-open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:0 20px 14px;border-bottom:1px solid var(--line)}
.drawer-head span{font-weight:700;color:var(--stadium)}
.drawer-close{width:40px;height:40px;border-radius:var(--r-md);display:grid;place-items:center;color:var(--text-2)}
.drawer-close:hover{background:var(--paper-alt)}
.drawer nav{display:flex;flex-direction:column;padding:8px 0;flex:1}
.drawer nav a{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;padding:0 20px;border-bottom:1px solid var(--line);
  font-size:15.5px;color:var(--text-2);
}
.drawer nav a:hover{background:var(--paper-alt)}
.drawer nav a.is-active{color:var(--stadium);font-weight:700;background:rgba(201,242,76,.14)}
.drawer-foot{padding:16px 20px 0;border-top:1px solid var(--line)}
.drawer-foot .btn{width:100%}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--inverse);padding:72px 0 0;position:relative}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(201,242,76,.5),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand-main,.footer-brand .brand-sub{color:var(--inverse)}
.footer-brand .brand-sub{color:rgba(242,247,244,.6)}
.footer-brand .brand-mark{background:rgba(242,247,244,.1)}
.footer-brand p{margin-top:18px;font-size:14.5px;color:rgba(242,247,244,.72);line-height:1.85;max-width:340px}
.footer-col h3{
  font-size:14px;color:rgba(242,247,244,.7);font-weight:600;letter-spacing:.06em;
  display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;
}
.footer-col h3 svg{width:16px;height:16px;display:none}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14.5px;color:rgba(242,247,244,.82)}
.footer-links a:hover{color:var(--lime);transform:translateX(2px)}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(242,247,244,.14);
  padding:22px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.footer-bottom .meta{display:flex;flex-wrap:wrap;gap:8px 22px;font-size:13px;color:rgba(242,247,244,.6)}
.to-top{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 18px;
  border-radius:var(--r-pill);border:1px solid rgba(242,247,244,.3);
  color:var(--inverse);font-size:14px;transition:all var(--ease);
}
.to-top svg{width:18px;height:18px}
.to-top:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-1px)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-links{gap:0}
  .nav-links a{padding:9px 10px;font-size:14.5px}
  .section{padding:72px 0}
  .overview{grid-template-columns:1fr;gap:40px}
  .figure-badge{left:16px}
  .risk-cards{grid-template-columns:1fr;gap:16px}
  .rel-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1/-1}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .nav{height:60px}
  .nav-links{display:none}
  .nav-cta .btn{display:none}
  .burger{display:inline-flex}
  .section{padding:56px 0}
  .page-banner{padding:32px 0 48px}
  .page-banner h1{margin:16px 0 12px}
  .page-banner .lead{font-size:15.5px}
  h1{font-size:28px}
  .overview-list li{padding:14px 0}
  .tl-step{grid-template-columns:48px 1fr;gap:16px;padding-bottom:28px}
  .tl-index{width:48px;height:48px;font-size:16px}
  .tl-step:not(:last-child)::before{left:23px;top:52px}
  .tl-card{padding:20px}
  .stat-row{grid-template-columns:1fr 1fr}
  .stat{padding:22px 18px 0}
  .stat:nth-child(odd){border-left:0;padding-left:0}
  .stat:nth-child(3),.stat:nth-child(4){border-top:1px solid rgba(242,247,244,.18);margin-top:22px}
  .rel-grid{grid-template-columns:1fr}
  .cta-bar .container{flex-direction:column;align-items:flex-start;gap:22px}
  .cta-bar h2{font-size:22px}
  .cta-actions{flex-direction:column;align-items:stretch;width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:0}
  .footer-col{border-bottom:1px solid rgba(242,247,244,.14);padding:18px 0}
  .site-footer{padding-top:44px}
  .footer-col h3{margin-bottom:0;cursor:pointer}
  .footer-col h3 svg{display:block;transition:transform var(--ease)}
  .footer-col.is-open h3 svg{transform:rotate(180deg)}
  .footer-links{max-height:0;overflow:hidden;transition:max-height 220ms ease,padding 220ms ease}
  .footer-col.is-open .footer-links{max-height:320px;padding-top:16px}
  .footer-bottom{margin-top:28px;flex-direction:column;align-items:flex-start}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;padding:0;gap:0;
    border-left:0;border-right:0;border-bottom:0;height:56px;
    background:var(--white);box-shadow:0 -8px 24px -8px rgba(14,59,51,.22);
  }
  .fc-main{flex:1 1 70%;height:56px;border-radius:0;justify-content:center}
  .fc-sub{flex:1 1 30%;height:56px;display:flex;align-items:center;justify-content:center;border-left:1px solid var(--line);padding:0}
}
@media (max-width:519px){
  .stat-row{grid-template-columns:1fr}
  .stat{border-left:0;padding-left:0;padding-right:0}
  .stat + .stat{border-top:1px solid rgba(242,247,244,.18);margin-top:20px}
  .banner-tags span{font-size:12.5px}
}

/* roulang page: category4 */
:root{
  --stadium:#0E3B33;
  --ink:#08251F;
  --stadium-light:#1A5A4C;
  --lime:#C9F24C;
  --ember:#FF7A2F;
  --paper:#F4F6F2;
  --paper-alt:#E9EEE7;
  --text:#12211E;
  --text-2:#4A5C57;
  --text-3:#8A9995;
  --white:#F2F7F4;
  --line:#D8E0DA;
  --ok:#1F8A5B;
  --warn:#D9822B;
  --err:#C0453A;
  --info:#2C7A8C;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(14,59,51,.06);
  --sh2:0 8px 24px -8px rgba(14,59,51,.18);
  --sh3:0 18px 48px -16px rgba(14,59,51,.28);
  --t:200ms ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--stadium);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--stadium-light);}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:none;background:none;color:inherit;}
svg{width:20px;height:20px;stroke-width:1.75;flex:none;}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px;}

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

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(244,246,242,.86);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  transition:background var(--t),box-shadow var(--t),border-color var(--t);
  border-bottom:1px solid transparent;
}
.site-header.is-stuck{
  background:#F4F6F2;
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh1);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:68px;
}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:11px;
  background:var(--stadium);
  color:var(--lime);
  box-shadow:var(--sh2);
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-main{font-size:17px;font-weight:700;letter-spacing:.01em;}
.brand-sub{font-size:11.5px;color:var(--text-3);letter-spacing:.06em;font-weight:500;}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{
  position:relative;
  padding:8px 14px;
  font-size:15px;
  color:var(--text-2);
  border-radius:var(--r-pill);
  transition:color var(--t),background var(--t);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:50%;bottom:3px;
  width:0;height:2px;
  background:var(--lime);
  border-radius:2px;
  transform:translateX(-50%);
  transition:width var(--t);
}
.nav-links a:hover{color:var(--stadium);}
.nav-links a:hover::after{width:20px;}
.nav-links a.is-active{
  color:var(--stadium);
  font-weight:700;
  background:rgba(201,242,76,.14);
}
.nav-links a.is-active::after{width:24px;}
.nav-cta{display:flex;align-items:center;gap:12px;}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-md);
  font-size:15.5px;
  font-weight:600;
  line-height:1;
  border:1.5px solid transparent;
  transition:transform var(--t),box-shadow var(--t),background var(--t),border-color var(--t),color var(--t),filter var(--t);
  white-space:nowrap;
}
.btn svg{width:18px;height:18px;}
.btn-primary{
  background:var(--lime);
  color:var(--ink);
  box-shadow:var(--sh2);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);color:var(--ink);box-shadow:var(--sh3);}
.btn-primary:active{transform:none;box-shadow:inset 0 2px 6px rgba(8,37,31,.22);}
.btn-ghost{
  background:transparent;
  color:var(--stadium);
  border-color:rgba(14,59,51,.35);
}
.btn-ghost:hover{border-color:var(--stadium);background:rgba(14,59,51,.05);transform:translateY(-1px);color:var(--stadium);}
.btn-ghost:active{transform:none;}
.btn-dark{
  background:var(--stadium);
  color:var(--white);
}
.btn-dark:hover{background:var(--stadium-light);color:var(--white);transform:translateY(-1px);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  height:auto;padding:0;border:none;background:none;
  color:var(--stadium);font-weight:600;
}
.btn-text svg{width:16px;height:16px;transition:transform var(--t);}
.btn-text:hover{color:var(--stadium-light);}
.btn-text:hover svg{transform:translateX(4px);}
.btn[disabled],.btn.is-disabled{
  filter:saturate(.4);
  opacity:.75;
  cursor:not-allowed;
  transform:none;
  box-shadow:none;
}
.burger{
  display:none;
  width:44px;height:44px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  color:var(--stadium);
  align-items:center;justify-content:center;
  background:#fff;
}
.burger svg{width:22px;height:22px;}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(8,37,31,.5);
  opacity:0;visibility:hidden;
  transition:opacity var(--t),visibility var(--t);
  z-index:200;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;
  width:260px;height:100%;
  background:#fff;
  box-shadow:var(--sh3);
  transform:translateX(102%);
  transition:transform 220ms ease;
  z-index:201;
  display:flex;flex-direction:column;
  padding:20px 0 24px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:0 20px 16px;
  border-bottom:1px solid var(--line);
}
.drawer-head .brand-main{font-size:16px;font-weight:700;color:var(--ink);}
.drawer-close{
  width:36px;height:36px;border-radius:10px;
  display:grid;place-items:center;color:var(--text-2);
  border:1px solid var(--line);
}
.drawer nav{flex:1;overflow-y:auto;padding:8px 0;}
.drawer nav a{
  display:flex;align-items:center;
  height:48px;padding:0 20px;
  border-bottom:1px solid var(--line);
  color:var(--text-2);font-size:15.5px;
}
.drawer nav a.is-active{color:var(--stadium);font-weight:700;background:rgba(201,242,76,.14);}
.drawer-foot{padding:16px 20px 0;border-top:1px solid var(--line);}
.drawer-foot .btn{width:100%;height:44px;}

/* ---------- page hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--stadium);}
.page-hero__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.page-hero__bg::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(8,37,31,.86),rgba(8,37,31,.62));
}
.page-hero__inner{
  position:relative;
  padding:64px 32px 68px;
  color:var(--white);
}
.crumb{
  display:flex;align-items:center;gap:8px;
  font-size:13.5px;color:rgba(242,247,244,.72);
  margin-bottom:20px;
}
.crumb a{color:rgba(242,247,244,.86);}
.crumb a:hover{color:var(--lime);}
.crumb .current{color:var(--lime);font-weight:600;}
.page-hero h1{
  color:#fff;
  font-size:42px;
  line-height:1.25;
  font-weight:700;
  max-width:820px;
  margin-bottom:16px;
}
.page-hero__lead{
  font-size:17px;
  color:rgba(242,247,244,.86);
  max-width:640px;
  line-height:1.8;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-tags span{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;
  border-radius:var(--r-pill);
  font-size:13px;letter-spacing:.04em;
  background:rgba(242,247,244,.12);
  border:1px solid rgba(242,247,244,.22);
  color:#F2F7F4;
}
.hero-tags span svg{width:15px;height:15px;color:var(--lime);}

/* ---------- section ---------- */
.section{padding:88px 0;}
.section.alt{background:var(--paper-alt);}
.section.dark{background:var(--stadium);color:var(--white);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;letter-spacing:.06em;
  color:var(--stadium-light);
  background:rgba(14,59,51,.07);
  padding:6px 13px;border-radius:var(--r-pill);
  margin-bottom:16px;
}
.section.dark .eyebrow{color:var(--lime);background:rgba(201,242,76,.12);}
.section-head h2{font-size:30px;line-height:1.35;font-weight:700;margin-bottom:14px;}
.section-head p{font-size:16.5px;color:var(--text-2);}
.section.dark .section-head h2{color:#fff;}
.section.dark .section-head p{color:rgba(242,247,244,.78);}

/* ---------- safety cards ---------- */
.grid-3{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  padding:26px;
  box-shadow:var(--sh1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover{
  transform:translateY(-3px);
  box-shadow:var(--sh3);
  border-color:rgba(14,59,51,.18);
}
.card-icon{
  width:44px;height:44px;
  border-radius:12px;
  display:grid;place-items:center;
  background:rgba(14,59,51,.07);
  color:var(--stadium);
  margin-bottom:18px;
}
.card-icon svg{width:22px;height:22px;}
.card h3{font-size:19px;font-weight:600;line-height:1.45;margin-bottom:10px;}
.card p{font-size:15px;color:var(--text-2);line-height:1.8;}
.card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;}
.badge{
  display:inline-flex;align-items:center;
  padding:5px 11px;
  border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
.badge-strong{background:var(--lime);color:var(--ink);}
.badge-weak{background:rgba(14,59,51,.08);color:var(--stadium);}
.badge-ember{background:rgba(255,122,47,.14);color:#B4531A;}
.card-num{
  font-family:"DIN Alternate","Helvetica Neue",sans-serif;
  font-size:24px;font-weight:700;color:var(--ember);
  font-variant-numeric:tabular-nums;
}

/* ---------- order / flow ---------- */
.split{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:56px;
  align-items:center;
}
.flow-list{counter-reset:flow;}
.flow-list li{
  display:flex;gap:18px;
  padding:20px 0;
  border-bottom:1px dashed var(--line);
}
.flow-list li:last-child{border-bottom:none;padding-bottom:0;}
.flow-list li:first-child{padding-top:0;}
.flow-num{
  flex:none;
  width:38px;height:38px;
  border-radius:var(--r-pill);
  display:grid;place-items:center;
  border:1.5px solid rgba(14,59,51,.28);
  color:var(--stadium);
  font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;
  transition:background var(--t),border-color var(--t);
}
.flow-list li:hover .flow-num{background:var(--lime);border-color:var(--lime);}
.flow-list h4{font-size:17px;font-weight:600;margin-bottom:4px;}
.flow-list p{font-size:14.5px;color:var(--text-2);line-height:1.75;}
.figure{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh3);
  background:#fff;
}
.figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.figure figcaption{
  padding:14px 18px;
  font-size:13px;
  color:var(--text-3);
  border-top:1px solid var(--line);
  background:var(--paper);
}
.figure-tag{
  position:absolute;top:14px;left:14px;
  background:rgba(8,37,31,.72);
  color:var(--lime);
  font-size:12px;font-weight:600;
  padding:6px 12px;border-radius:var(--r-pill);
  letter-spacing:.05em;
}

/* ---------- accordion ---------- */
.acc-wrap{max-width:900px;}
.acc{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color var(--t),box-shadow var(--t);
}
.acc[open]{border-color:rgba(14,59,51,.22);box-shadow:var(--sh2);}
.acc summary{
  list-style:none;
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;
  min-height:58px;
  padding:12px 24px;
  font-size:16.5px;font-weight:600;
  cursor:pointer;
  transition:color var(--t);
}
.acc summary::-webkit-details-marker{display:none;}
.acc summary:hover{color:var(--stadium-light);}
.acc summary .plus{
  flex:none;
  width:26px;height:26px;
  display:grid;place-items:center;
  color:var(--stadium);
  transition:transform 220ms ease;
}
.acc summary .plus svg{width:20px;height:20px;}
.acc[open] summary .plus{transform:rotate(45deg);}
.acc-body{
  padding:4px 24px 22px;
  font-size:15.5px;
  color:var(--text-2);
  line-height:1.85;
  background:var(--paper);
  border-top:1px solid var(--line);
}
.acc-body p+p{margin-top:12px;}

/* ---------- support ---------- */
.support-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:32px;
  align-items:start;
}
.check-list li{
  display:flex;gap:12px;
  padding:14px 16px;
  border-radius:var(--r-md);
  font-size:15.5px;
  color:var(--text-2);
  transition:background var(--t),box-shadow var(--t);
}
.check-list li:hover{background:#fff;box-shadow:var(--sh1);}
.check-list .tick{
  flex:none;
  width:22px;height:22px;
  margin-top:3px;
  border-radius:6px;
  display:grid;place-items:center;
  background:var(--lime);
  color:var(--ink);
}
.check-list .tick svg{width:14px;height:14px;stroke-width:2.2;}
.check-list strong{display:block;color:var(--text);font-weight:600;font-size:16px;margin-bottom:2px;}
.info-panel{
  background:var(--ink);
  color:rgba(242,247,244,.86);
  border-radius:var(--r-lg);
  padding:32px;
  box-shadow:var(--sh3);
}
.info-panel h3{color:#fff;font-size:20px;margin-bottom:14px;}
.info-panel p{font-size:15px;line-height:1.85;}
.info-list{margin-top:22px;border-top:1px solid rgba(242,247,244,.16);}
.info-list li{
  display:flex;align-items:center;justify-content:space-between;
  gap:14px;
  padding:14px 0;
  border-bottom:1px solid rgba(242,247,244,.16);
  font-size:14.5px;
}
.info-list li:last-child{border-bottom:none;}
.info-list b{color:var(--lime);font-weight:600;}

/* ---------- hub links ---------- */
.hub-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.hub-card{
  display:flex;
  align-items:center;
  gap:18px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  padding:20px;
  box-shadow:var(--sh1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  color:var(--text);
}
.hub-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--sh3);
  border-color:rgba(14,59,51,.18);
  color:var(--text);
}
.hub-card img{
  width:72px;height:72px;
  flex:none;
  border-radius:12px;
  object-fit:cover;
}
.hub-card h3{font-size:17px;font-weight:600;margin-bottom:4px;}
.hub-card p{font-size:14px;color:var(--text-2);line-height:1.7;}
.hub-arrow{
  margin-left:auto;
  width:34px;height:34px;
  flex:none;
  border-radius:var(--r-pill);
  display:grid;place-items:center;
  background:rgba(14,59,51,.06);
  color:var(--stadium);
  transition:background var(--t),transform var(--t);
}
.hub-card:hover .hub-arrow{background:var(--lime);transform:translateX(3px);}

/* ---------- cta bar ---------- */
.cta-bar{
  background:var(--stadium);
  position:relative;
  overflow:hidden;
}
.cta-bar::before{
  content:"";
  position:absolute;inset:0;
  background-image:radial-gradient(circle at 88% 20%,rgba(201,242,76,.16),transparent 46%);
}
.cta-bar__inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  min-height:120px;
  padding:28px 32px;
}
.cta-bar h2{color:#fff;font-size:24px;font-weight:700;margin-bottom:6px;}
.cta-bar p{color:rgba(242,247,244,.78);font-size:15px;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--ink);
  color:rgba(242,247,244,.72);
  padding:72px 0 0;
  position:relative;
}
.site-footer::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--lime),rgba(201,242,76,0) 62%);
  opacity:.7;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:52px;
}
.footer-brand .brand{color:#fff;margin-bottom:18px;}
.footer-brand .brand-main{color:#fff;}
.footer-brand .brand-sub{color:rgba(242,247,244,.6);}
.footer-brand .brand-mark{background:rgba(201,242,76,.16);color:var(--lime);}
.footer-brand p{font-size:14.5px;line-height:1.85;color:rgba(242,247,244,.66);max-width:360px;}
.footer-col h3{
  display:flex;align-items:center;justify-content:space-between;
  font-size:14px;font-weight:600;
  color:rgba(242,247,244,.7);
  letter-spacing:.04em;
  margin-bottom:16px;
}
.footer-col h3 svg{width:16px;height:16px;display:none;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{
  font-size:14.5px;
  color:rgba(242,247,244,.78);
  transition:color var(--t),transform var(--t);
}
.footer-links a:hover{color:var(--lime);transform:translateX(2px);}
.footer-bottom{
  border-top:1px solid rgba(242,247,244,.14);
  padding:22px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
}
.footer-bottom .meta{
  display:flex;flex-wrap:wrap;gap:8px 22px;
  font-size:13px;color:rgba(242,247,244,.6);
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 16px;
  border-radius:var(--r-pill);
  border:1px solid rgba(242,247,244,.24);
  color:rgba(242,247,244,.86);
  font-size:13.5px;
  transition:background var(--t),color var(--t),border-color var(--t);
}
.to-top:hover{background:var(--lime);color:var(--ink);border-color:var(--lime);}
.to-top svg{width:16px;height:16px;}

/* ---------- float cta ---------- */
.float-cta{
  position:fixed;
  right:28px;bottom:28px;
  z-index:80;
  display:inline-flex;align-items:center;gap:10px;
  height:52px;padding:0 22px;
  border-radius:var(--r-pill);
  background:var(--lime);
  color:var(--ink);
  font-weight:700;font-size:15px;
  box-shadow:var(--sh3);
  opacity:0;visibility:hidden;
  transform:translateY(12px);
  transition:opacity var(--t),transform var(--t),visibility var(--t),filter var(--t);
}
.float-cta svg{width:18px;height:18px;}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{filter:brightness(1.06);color:var(--ink);}
.float-bar{display:none;}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 32px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .nav{height:64px;}
  .nav-links{display:none;}
  .nav-cta .btn-primary{display:none;}
  .burger{display:inline-flex;}
  .page-hero__inner{padding:52px 24px 56px;}
  .page-hero h1{font-size:34px;}
  .section{padding:72px 0;}
  .section-head h2{font-size:27px;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .split{grid-template-columns:1fr;gap:36px;}
  .support-grid{grid-template-columns:1fr;}
  .hub-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand p{max-width:none;}
}
@media (max-width:639px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .page-hero__inner{padding:40px 18px 46px;}
  .page-hero h1{font-size:28px;}
  .page-hero__lead{font-size:15.5px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .section-head h2{font-size:23px;}
  .grid-3{grid-template-columns:1fr;gap:16px;}
  .hub-grid{grid-template-columns:1fr;}
  .card{padding:22px;}
  .cta-bar__inner{flex-direction:column;align-items:flex-start;min-height:0;padding:32px 18px;gap:20px;}
  .cta-bar__inner .btn{width:100%;}
  .acc summary{min-height:52px;padding:12px 18px;font-size:15.5px;}
  .acc-body{padding:4px 18px 20px;}
  .info-panel{padding:24px;}
  .footer-grid{grid-template-columns:1fr;gap:8px;padding-bottom:32px;}
  .footer-col{border-bottom:1px solid rgba(242,247,244,.14);padding:14px 0;}
  .footer-col h3{margin-bottom:0;cursor:pointer;}
  .footer-col h3 svg{display:block;transition:transform var(--t);}
  .footer-col.is-open h3 svg{transform:rotate(180deg);}
  .footer-links{max-height:0;overflow:hidden;transition:max-height 260ms ease;gap:9px;}
  .footer-col.is-open .footer-links{max-height:240px;margin-top:14px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .float-cta{display:none;}
  .float-bar{
    display:flex;
    position:fixed;left:0;right:0;bottom:0;
    z-index:80;
    height:56px;
    background:#fff;
    border-top:1px solid var(--line);
    box-shadow:0 -8px 24px -8px rgba(14,59,51,.18);
    opacity:0;visibility:hidden;
    transition:opacity var(--t),visibility var(--t);
  }
  .float-bar.is-visible{opacity:1;visibility:visible;}
  .float-bar a{
    display:flex;align-items:center;justify-content:center;
    font-size:15px;font-weight:600;
  }
  .float-bar a.main{flex:0 0 70%;background:var(--lime);color:var(--ink);}
  .float-bar a.sub{flex:0 0 30%;color:var(--stadium);border-left:1px solid var(--line);}
  body{padding-bottom:56px;}
}

/* roulang page: category3 */
:root{
  --stadium:#0E3B33;
  --ink:#08251F;
  --stadium-light:#1A5A4C;
  --lime:#C9F24C;
  --ember:#FF7A2F;
  --paper:#F4F6F2;
  --paper-alt:#E9EEE7;
  --text:#12211E;
  --text-2:#4A5C57;
  --text-3:#8A9995;
  --reverse:#F2F7F4;
  --border:#D8E0DA;
  --success:#1F8A5B;
  --warn:#D9822B;
  --danger:#C0453A;
  --info:#2C7A8C;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-card:14px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(14,59,51,.06);
  --sh2:0 8px 24px -8px rgba(14,59,51,.18);
  --sh3:0 18px 48px -16px rgba(14,59,51,.28);
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
strong{font-weight:700}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 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:600;letter-spacing:.01em;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,filter .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn svg{width:18px;height:18px;stroke-width:1.75;flex:0 0 auto}
.btn-primary{background:var(--lime);color:var(--ink);box-shadow:var(--sh1)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-primary:active{transform:none;box-shadow:inset 0 2px 6px rgba(8,37,31,.28)}
.btn-ghost{border:1.5px solid var(--stadium);color:var(--stadium);background:transparent}
.btn-ghost:hover{background:rgba(14,59,51,.06);transform:translateY(-1px)}
.btn-ghost:active{transform:none;box-shadow:inset 0 2px 6px rgba(8,37,31,.14)}
.btn-light{background:#fff;color:var(--ink);border:1px solid var(--border)}
.btn-light:hover{transform:translateY(-1px);box-shadow:var(--sh2)}
.btn:disabled,.btn[aria-disabled="true"]{filter:grayscale(40%);opacity:.62;cursor:not-allowed;transform:none;box-shadow:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--stadium)}
.link-arrow svg{width:16px;height:16px;stroke-width:2;transition:transform .18s ease}
.link-arrow:hover svg{transform:translateX(4px)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(244,246,242,.86);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  transition:background .22s ease,box-shadow .22s ease,border-color .22s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{background:var(--paper);border-bottom-color:var(--border);box-shadow:var(--sh1)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;height:var(--nav-h)}
.brand{display:inline-flex;align-items:center;gap:10px}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:var(--r-md);
  background:var(--stadium);color:var(--lime);flex:0 0 auto;
}
.brand-mark svg{width:22px;height:22px;stroke-width:1.75}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-main{font-size:17px;font-weight:700;color:var(--stadium);letter-spacing:.01em}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.14em}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:38px;padding:0 14px;
  border-radius:var(--r-pill);font-size:15px;font-weight:500;color:var(--text-2);
  transition:color .18s ease,background .18s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:2px;height:2px;width:0;
  background:var(--lime);border-radius:2px;transform:translateX(-50%);
  transition:width .2s ease;
}
.nav-links a:hover{color:var(--stadium)}
.nav-links a:hover::after{width:calc(100% - 28px)}
.nav-links a.is-active{color:var(--stadium);font-weight:700;background:rgba(201,242,76,.14)}
.nav-links a.is-active::after{width:calc(100% - 28px)}
.nav-cta{display:flex;align-items:center;gap:12px}
.burger{
  display:none;width:44px;height:44px;border-radius:var(--r-md);
  align-items:center;justify-content:center;color:var(--stadium);
  border:1px solid var(--border);background:#fff;
}
.burger svg{width:22px;height:22px;stroke-width:1.75}
.burger:hover{background:var(--paper-alt)}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(8,37,31,.5);z-index:199;
  opacity:0;visibility:hidden;transition:opacity .26s ease,visibility .26s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:260px;background:#fff;z-index:200;
  transform:translateX(100%);transition:transform .28s ease;
  display:flex;flex-direction:column;box-shadow:var(--sh3);
}
.drawer.is-open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:60px;padding:0 18px;border-bottom:1px solid var(--border)}
.drawer-head span{font-size:15px;font-weight:700;color:var(--stadium)}
.drawer-close{width:36px;height:36px;border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;color:var(--text-2)}
.drawer-close svg{width:20px;height:20px;stroke-width:1.75}
.drawer-close:hover{background:var(--paper-alt)}
.drawer-links{flex:1;overflow-y:auto}
.drawer-links a{display:flex;align-items:center;height:48px;padding:0 18px;font-size:15px;color:var(--text-2);border-bottom:1px solid var(--border)}
.drawer-links a.is-active{color:var(--stadium);font-weight:700;background:rgba(201,242,76,.14)}
.drawer-foot{padding:16px 18px;border-top:1px solid var(--border)}
.drawer-foot .btn{width:100%;height:44px}

/* ---------- 区块基础 ---------- */
.section{padding:80px 0}
.section-alt{background:var(--paper-alt)}
.section-title{font-size:28px;font-weight:700;line-height:1.35;letter-spacing:.01em}
.section-sub{margin-top:10px;font-size:15px;color:var(--text-2);max-width:640px}

/* ---------- 页头横幅 ---------- */
.page-hero{
  position:relative;color:var(--reverse);
  background-color:var(--ink);
  background-image:linear-gradient(rgba(8,37,31,.62),rgba(8,37,31,.62)),url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  padding:44px 0 96px;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:6px;opacity:.45;
  background:repeating-linear-gradient(90deg,rgba(201,242,76,.9) 0 2px,transparent 2px 26px);
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(242,247,244,.72);margin-bottom:22px;flex-wrap:wrap}
.crumbs a{color:rgba(242,247,244,.72)}
.crumbs a:hover{color:var(--lime)}
.crumbs svg{width:14px;height:14px;stroke-width:2;opacity:.6}
.crumbs .current{color:#fff;font-weight:600}
.hero-badge{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(201,242,76,.18);color:var(--lime);
  font-size:12px;font-weight:600;letter-spacing:.06em;margin-bottom:16px;
}
.page-hero h1{font-size:44px;font-weight:700;line-height:1.25;letter-spacing:.01em;color:#fff;max-width:820px}
.page-hero .lede{margin-top:16px;font-size:17px;line-height:1.8;color:rgba(242,247,244,.86);max-width:620px}

/* ---------- 信息条 ---------- */
.info-bar{
  position:relative;z-index:2;margin-top:-44px;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  box-shadow:var(--sh2);padding:24px 12px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:8px;
}
.info-item{text-align:center;padding:0 12px;border-right:1px solid var(--border)}
.info-item:last-child{border-right:0}
.info-num{display:block;font-size:32px;font-weight:700;line-height:1.2;color:var(--stadium);font-variant-numeric:tabular-nums}
.info-label{display:block;margin-top:4px;font-size:13px;color:var(--text-3)}

/* ---------- 常见问题布局 ---------- */
.faq-layout{display:grid;grid-template-columns:240px 1fr;gap:40px;align-items:start}
.toc{
  position:sticky;top:calc(var(--nav-h) + 24px);
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:20px 16px;box-shadow:var(--sh1);
}
.toc h2{font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--text-3);text-transform:none;margin-bottom:10px;padding-left:12px}
.toc a{
  display:block;padding:10px 12px;border-radius:var(--r-sm);
  font-size:15px;color:var(--text-2);border-left:3px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.toc a:hover{background:var(--paper-alt);color:var(--text)}
.toc a.is-active{color:var(--stadium);font-weight:700;border-left-color:var(--lime);background:rgba(201,242,76,.12)}
.toc-note{margin-top:16px;padding:14px 12px 4px;border-top:1px solid var(--border);font-size:13px;line-height:1.7;color:var(--text-3)}

.intro-text{font-size:16px;line-height:1.9;color:var(--text-2);max-width:760px}
.intro-text + .faq-group{margin-top:44px}
.faq-group + .faq-group{margin-top:52px}
.group-head{display:flex;align-items:baseline;gap:14px;margin-bottom:6px;flex-wrap:wrap}
.group-index{font-size:28px;font-weight:700;line-height:1;color:var(--ember);font-variant-numeric:tabular-nums}
.group-head h2{font-size:24px;font-weight:700;line-height:1.4}
.group-sub{font-size:14px;color:var(--text-3);margin-bottom:20px}
.q-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.q-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.q-card:hover{transform:translateY(-3px);box-shadow:var(--sh3);border-color:rgba(14,59,51,.18)}
.q-card-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:var(--r-md);
  background:rgba(14,59,51,.07);color:var(--stadium);margin-bottom:14px;
}
.q-card-icon svg{width:22px;height:22px;stroke-width:1.75}
.q-card h3{font-size:19px;font-weight:600;line-height:1.5}
.q-card > p{margin-top:8px;font-size:15px;line-height:1.8;color:var(--text-2)}
.q-list{margin-top:14px;display:grid;gap:8px}
.q-list li{position:relative;padding-left:18px;font-size:14px;line-height:1.7;color:var(--text-2)}
.q-list li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;background:var(--lime)}

/* ---------- FAQ 手风琴 ---------- */
.faq-wrap{max-width:800px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-md);
  margin-bottom:12px;overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item:hover{border-color:rgba(14,59,51,.18);box-shadow:var(--sh1)}
.faq-q{
  width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:12px 24px;text-align:left;font-size:17px;font-weight:600;line-height:1.6;color:var(--text);
}
.faq-icon{
  flex:0 0 auto;display:flex;align-items:center;justify-content:center;
  width:28px;height:28px;border-radius:50%;background:rgba(14,59,51,.08);
  transition:transform .22s ease,background .22s ease;
}
.faq-icon svg{width:16px;height:16px;stroke-width:2}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--lime)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-a-inner{padding:18px 24px 22px;background:var(--paper);border-top:1px solid var(--border);font-size:15px;line-height:1.85;color:var(--text-2)}

/* ---------- 相关分类 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:28px}
.rel-card{
  display:flex;flex-direction:column;gap:8px;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sh3);border-color:rgba(14,59,51,.18)}
.rel-card .rel-tag{
  align-self:flex-start;display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-pill);background:rgba(14,59,51,.08);color:var(--stadium);
  font-size:12px;font-weight:600;letter-spacing:.06em;
}
.rel-card h3{font-size:18px;font-weight:600}
.rel-card p{font-size:14px;line-height:1.75;color:var(--text-2)}
.rel-card .link-arrow{margin-top:6px}

/* ---------- 底部 CTA 条 ---------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  background-color:var(--stadium);
  background-image:radial-gradient(circle at 88% 120%,rgba(201,242,76,.22),transparent 58%);
  border-radius:var(--r-lg);padding:36px 40px;color:var(--reverse);
  box-shadow:var(--sh2);
}
.cta-band h2{font-size:24px;font-weight:700;color:#fff}
.cta-band p{margin-top:8px;font-size:15px;color:rgba(242,247,244,.82);max-width:560px;line-height:1.8}

/* ---------- 浮动 CTA ---------- */
.float-cta{opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease}
.float-cta.is-show{opacity:1;visibility:visible}
.float-pill{
  position:fixed;right:24px;bottom:24px;z-index:80;
  display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-pill);
  background:var(--lime);color:var(--ink);font-size:15px;font-weight:700;
  box-shadow:var(--sh3);transform:translateY(0);transition:transform .18s ease,filter .18s ease;
}
.float-pill svg{width:18px;height:18px;stroke-width:1.9}
.float-pill:hover{transform:translateY(-2px);filter:brightness(1.05)}
.float-bar{display:none}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--ink);color:var(--reverse);padding:64px 0 0;margin-top:0}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:6px;opacity:.5;
  background:repeating-linear-gradient(90deg,rgba(201,242,76,.7) 0 2px,transparent 2px 26px);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer-brand .brand-mark{background:rgba(201,242,76,.14);color:var(--lime)}
.footer-brand .brand-main{color:#fff}
.footer-brand .brand-sub{color:rgba(242,247,244,.6)}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.85;color:rgba(242,247,244,.7);max-width:360px}
.footer-col h3{
  display:flex;align-items:center;justify-content:space-between;
  font-size:14px;font-weight:600;color:rgba(242,247,244,.7);margin-bottom:16px;
}
.footer-col h3 svg{display:none;width:18px;height:18px;stroke-width:1.75;transition:transform .22s ease}
.footer-links{display:grid;gap:10px}
.footer-links a{
  display:inline-block;font-size:14px;color:rgba(242,247,244,.82);
  transition:color .18s ease,transform .18s ease;
}
.footer-links a:hover{color:var(--lime);transform:translateX(2px)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid rgba(242,247,244,.14);
}
.footer-bottom .meta{display:flex;flex-wrap:wrap;gap:8px 22px;font-size:13px;color:rgba(242,247,244,.6)}
.to-top{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 16px;
  border-radius:var(--r-pill);border:1px solid rgba(242,247,244,.24);
  font-size:13px;color:rgba(242,247,244,.86);
  transition:background .18s ease,border-color .18s ease,transform .18s ease;
}
.to-top svg{width:16px;height:16px;stroke-width:1.9}
.to-top:hover{background:rgba(201,242,76,.12);border-color:rgba(201,242,76,.5);color:var(--lime);transform:translateY(-1px)}

/* ---------- 骨架与空态（保留态） ---------- */
.skeleton{background:var(--paper-alt);border-radius:var(--r-sm);position:relative;overflow:hidden}
.skeleton::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.6),transparent);
  animation:sweep 1.4s infinite;
}
@keyframes sweep{0%{transform:translateX(-100%)}100%{transform:translateX(100%)}}
.empty-state{
  border:1.5px dashed var(--border);border-radius:var(--r-card);
  padding:40px 24px;text-align:center;color:var(--text-3);font-size:14px;
}
.empty-state svg{width:28px;height:28px;stroke-width:1.75;margin:0 auto 10px;display:block;color:var(--text-3)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  :root{--nav-h:60px}
  .container{padding:0 24px}
  .nav-links{display:none}
  .nav-cta .btn{display:none}
  .burger{display:inline-flex}
  .section{padding:64px 0}
  .page-hero{padding:34px 0 80px}
  .page-hero h1{font-size:34px}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .toc{position:static}
  .q-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .info-bar{grid-template-columns:repeat(2,1fr);gap:16px 8px;padding:20px 8px;margin-top:-36px}
  .info-item:nth-child(2){border-right:0}
  .info-item:nth-child(1),.info-item:nth-child(2){padding-bottom:12px;border-bottom:1px solid var(--border)}
}
@media (max-width:639px){
  .container{padding:0 18px}
  body{font-size:16px;padding-bottom:56px}
  .section{padding:48px 0}
  .page-hero{padding:26px 0 68px}
  .page-hero h1{font-size:28px;line-height:1.3}
  .page-hero .lede{font-size:15px}
  .section-title{font-size:23px}
  .group-head h2{font-size:20px}
  .group-index{font-size:24px}
  .q-grid{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:1fr}
  .float-pill{display:none}
  .float-bar{
    display:flex;align-items:center;gap:10px;
    position:fixed;left:0;right:0;bottom:0;z-index:80;height:56px;padding:6px 12px;
    background:rgba(244,246,242,.96);
    -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
    border-top:1px solid var(--border);box-shadow:var(--sh2);
  }
  .float-bar .btn{flex:0 0 70%;height:44px;padding:0 12px;font-size:14px}
  .float-bar-link{flex:1;text-align:center;font-size:14px;font-weight:600;color:var(--stadium)}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 22px;gap:20px}
  .cta-band .btn{width:100%}
  .faq-q{min-height:52px;padding:12px 18px;font-size:16px}
  .faq-a-inner{padding:16px 18px 20px}
  .footer-grid{grid-template-columns:1fr;gap:0;padding-bottom:24px}
  .footer-col{border-bottom:1px solid rgba(242,247,244,.14);padding:16px 0}
  .footer-col h3{margin-bottom:0;cursor:pointer}
  .footer-col h3 svg{display:block}
  .footer-col .footer-links{max-height:0;overflow:hidden;transition:max-height .24s ease;margin-top:0}
  .footer-col.is-open .footer-links{max-height:260px;margin-top:14px}
  .footer-col.is-open h3 svg{transform:rotate(180deg)}
  .footer-brand{padding-top:0;border-bottom:0}
  .footer-brand p{margin-top:14px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px}
  .toc{padding:16px 12px}
}