/* roulang page: index */
:root{
  --primary:#0E7C61;
  --primary-deep:#0A5A47;
  --accent:#46E3A8;
  --ink:#0C1512;
  --ink-2:#16211E;
  --paper:#F5F6F3;
  --surface:#FFFFFF;
  --tint:#EAF5F0;
  --line:#E3E7E3;
  --muted:#67736E;
  --radius-card:18px;
  --shadow-soft:0 1px 2px rgba(12,21,18,.04);
  --shadow-lift:0 16px 40px -20px rgba(12,21,18,.18);
  --ease:cubic-bezier(.2,.7,.2,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'PingFang SC','HarmonyOS Sans','Microsoft YaHei',system-ui,-apple-system,'Segoe UI',sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
svg{display:block}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:8px}

.shell{max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.shell{padding:0 32px}}
@media(min-width:1024px){.shell{padding:0 48px}}

.sec{padding:56px 0}
@media(min-width:768px){.sec{padding:72px 0}}
@media(min-width:1024px){.sec{padding:112px 0}}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:'Inter','Space Grotesk',system-ui,sans-serif;
  font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--primary);font-weight:600;
}
.eyebrow::before{content:'';width:22px;height:1px;background:var(--primary);display:block}

.h1{
  font-size:clamp(38px,6vw,76px);
  line-height:1.08;
  letter-spacing:-.02em;
  font-weight:800;
}
.h2{
  font-size:clamp(26px,3.2vw,42px);
  line-height:1.2;
  letter-spacing:-.015em;
  font-weight:800;
}
.h3{font-size:20px;line-height:1.35;font-weight:700}
@media(min-width:768px){.h3{font-size:22px}}
.lede{font-size:16px;line-height:1.85;color:var(--muted)}
.small{font-size:13px;line-height:1.7;color:var(--muted)}
.num{font-family:'Inter','Space Grotesk',ui-sans-serif,system-ui,sans-serif}

/* ---------- Dock 导航 ---------- */
.dock{
  position:fixed;top:16px;left:50%;transform:translateX(-50%);
  width:calc(100% - 32px);max-width:1080px;z-index:60;
}
.dock-inner{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:9px 10px 9px 18px;
  border-radius:999px;
  background:rgba(255,255,255,.72);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border:1px solid var(--line);
  box-shadow:0 6px 24px -16px rgba(12,21,18,.28);
  transition:padding .3s var(--ease),box-shadow .3s var(--ease),background .3s var(--ease);
}
.dock.is-shrunk .dock-inner{
  padding:5px 8px 5px 16px;
  box-shadow:0 14px 34px -20px rgba(12,21,18,.42);
  background:rgba(255,255,255,.86);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:32px;height:32px;border-radius:10px;
  background:linear-gradient(140deg,var(--primary) 0%,var(--primary-deep) 100%);
  display:flex;align-items:center;justify-content:center;
  box-shadow:inset 0 0 0 1px rgba(70,227,168,.35);
}
.brand-mark svg{width:18px;height:18px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:15px;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
.brand-sub{font-size:10.5px;letter-spacing:.14em;color:var(--muted);font-family:'Inter','Space Grotesk',system-ui,sans-serif;text-transform:uppercase}

.nav-list{display:none;align-items:center;gap:2px}
@media(min-width:1024px){.nav-list{display:flex}}
.nav-link{
  display:inline-flex;align-items:center;height:38px;padding:0 15px;
  border-radius:999px;font-size:14px;font-weight:500;color:var(--ink-2);
  transition:background .24s var(--ease),color .24s var(--ease);
  white-space:nowrap;
}
.nav-link:hover{background:var(--tint);color:var(--primary-deep)}
.nav-link.is-active{background:var(--tint);color:var(--primary);font-weight:700}

.dock-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;border-radius:999px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--surface);color:var(--ink-2);
  cursor:pointer;transition:border-color .24s var(--ease),color .24s var(--ease),transform .24s var(--ease);
}
.icon-btn:hover{border-color:rgba(14,124,97,.45);color:var(--primary);transform:translateY(-1px)}
.icon-btn svg{width:17px;height:17px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:background .26s var(--ease),color .26s var(--ease),transform .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-1px);box-shadow:0 12px 26px -16px rgba(10,90,71,.8)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-outline{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:#fff}
.btn-accent{background:var(--accent);color:var(--ink)}
.btn-accent:hover{background:#5cf0b7;transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:13.5px}
.btn .arrow{transition:transform .26s var(--ease)}
.btn:hover .arrow{transform:translateX(3px)}

.link-u{position:relative;display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--primary-deep)}
.link-u::after{
  content:'';position:absolute;left:0;bottom:-3px;height:1px;width:100%;
  background:currentColor;transform:scaleX(0);transform-origin:left;
  transition:transform .3s var(--ease);
}
.link-u:hover::after{transform:scaleX(1)}

/* ---------- 移动端导航面板 ---------- */
.burger{display:inline-flex;flex-direction:column;justify-content:center;gap:5px;width:40px;height:40px;border-radius:999px;border:1px solid var(--line);background:var(--surface);cursor:pointer}
@media(min-width:1024px){.burger{display:none}}
.burger span{display:block;height:1.5px;width:16px;margin:0 auto;background:var(--ink);border-radius:2px;transition:transform .28s var(--ease),opacity .28s var(--ease)}
.burger.is-open span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

.mobile-panel{
  position:fixed;inset:70px 16px auto 16px;z-index:55;
  background:rgba(255,255,255,.96);
  -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
  border:1px solid var(--line);border-radius:24px;
  padding:20px;box-shadow:var(--shadow-lift);
  opacity:0;transform:translateY(-10px);pointer-events:none;
  transition:opacity .28s var(--ease),transform .28s var(--ease);
}
.mobile-panel.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
@media(min-width:1024px){.mobile-panel{display:none}}
.mobile-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 4px;border-bottom:1px solid var(--line);
  font-size:19px;font-weight:700;color:var(--ink-2);
}
.mobile-link.is-active{color:var(--primary)}
.mobile-link svg{width:16px;height:16px;color:var(--muted)}

/* ---------- Hero ---------- */
.page-top-pad{padding-top:112px}
@media(min-width:1024px){.page-top-pad{padding-top:132px}}
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(680px 360px at 88% 8%,rgba(70,227,168,.16),transparent 70%),
    radial-gradient(520px 320px at 6% 92%,rgba(14,124,97,.10),transparent 72%),
    var(--paper);
}
.hero-grid-lines{
  position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(12,21,18,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(12,21,18,.05) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(70% 60% at 50% 30%,#000,transparent 78%);
  mask-image:radial-gradient(70% 60% at 50% 30%,#000,transparent 78%);
}
.hero-media{
  position:relative;border-radius:22px;overflow:hidden;
  border:1px solid var(--line);background:var(--tint);
  aspect-ratio:4/3;box-shadow:var(--shadow-soft);
}
.hero-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.hero-media:hover img{transform:scale(1.03)}
.float-card{
  position:absolute;background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border:1px solid var(--line);border-radius:14px;padding:12px 14px;
  box-shadow:0 14px 34px -22px rgba(12,21,18,.4);
  display:flex;align-items:center;gap:10px;
}
.float-a{top:8%;left:-14px}
.float-b{bottom:8%;right:-10px}
@media(max-width:767px){.float-a{left:8px}.float-b{right:8px;bottom:6px}}
.dot-pulse{width:8px;height:8px;border-radius:999px;background:var(--accent);box-shadow:0 0 0 4px rgba(70,227,168,.22);flex:0 0 auto}

.trust-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px 22px}
.trust-item{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted)}
.trust-item svg{width:15px;height:15px;color:var(--primary);flex:0 0 auto}
.trust-sep{width:1px;height:14px;background:var(--line)}

/* ---------- 数据条 ---------- */
.stat-bar{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--surface);
}
@media(min-width:768px){.stat-bar{grid-template-columns:repeat(4,minmax(0,1fr))}}
.stat-cell{padding:24px 20px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat-cell:last-child{border-right:none}
@media(min-width:768px){.stat-cell{border-bottom:none}}
@media(max-width:767px){
  .stat-cell:nth-child(2n){border-right:none}
  .stat-cell:nth-last-child(-n+2){border-bottom:none}
}
.stat-num{font-size:clamp(30px,4vw,42px);font-weight:800;letter-spacing:-.03em;color:var(--ink);line-height:1.1}
.stat-unit{font-size:15px;font-weight:700;color:var(--primary);margin-left:2px}
.stat-label{margin-top:6px;font-size:13.5px;color:var(--muted)}

/* ---------- 对比表 ---------- */
.cmp-wrap{border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);overflow-x:auto}
.cmp-table{width:100%;min-width:760px;border-collapse:collapse}
.cmp-table th,.cmp-table td{padding:15px 16px;border-bottom:1px solid var(--line);font-size:14.5px;text-align:center}
.cmp-table th:first-child,.cmp-table td:first-child{text-align:left;font-weight:600;color:var(--ink);width:34%}
.cmp-table thead th{
  position:sticky;top:0;z-index:3;background:var(--surface);
  font-size:14px;font-weight:700;color:var(--ink-2);letter-spacing:.01em;
  border-bottom:1px solid var(--line);
}
.cmp-table tbody tr:last-child td{border-bottom:none}
.cmp-table tbody tr:hover td{background:rgba(234,245,240,.5)}
.col-rec{position:relative;background:rgba(234,245,240,.55)}
.cmp-table thead th.col-rec{background:var(--tint);color:var(--primary-deep)}
.col-rec-edge-l{border-left:2px solid var(--primary)}
.col-rec-edge-r{border-right:2px solid var(--primary)}
.badge-rec{
  position:absolute;top:-11px;left:50%;transform:translateX(-50%);
  background:var(--primary);color:#fff;font-size:11px;font-weight:700;
  padding:3px 10px;border-radius:999px;white-space:nowrap;letter-spacing:.04em;
}
.tick{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:999px;background:rgba(14,124,97,.1);color:var(--primary)}
.tick svg{width:13px;height:13px}
.none-mark{display:inline-block;width:14px;height:1.5px;background:var(--muted);border-radius:2px;opacity:.7}

/* ---------- 等级阶梯 ---------- */
.tier{position:relative;display:grid;grid-template-columns:1fr;gap:16px;padding:24px 0}
@media(min-width:768px){.tier{grid-template-columns:96px 1fr;gap:28px;padding:30px 0}}
.tier + .tier{border-top:1px solid var(--line)}
.tier-index{display:flex;align-items:flex-start;gap:12px}
.tier-badge{
  width:58px;height:58px;border-radius:16px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  font-family:'Inter','Space Grotesk',system-ui,sans-serif;font-weight:700;font-size:17px;
  background:var(--surface);border:1px solid var(--line);color:var(--ink-2);
}
.tier.is-top .tier-badge{background:var(--ink);color:#fff;border-color:var(--ink)}
.tier.is-mid .tier-badge{background:var(--tint);color:var(--primary-deep);border-color:rgba(14,124,97,.25)}
.tier-rule{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--primary);font-weight:600}
.rights{display:grid;gap:8px;margin-top:14px}
.rights li{display:flex;align-items:flex-start;gap:9px;font-size:14.5px;color:var(--ink-2)}
.rights li svg{width:15px;height:15px;color:var(--primary);flex:0 0 auto;margin-top:5px}

/* ---------- 专属内容预览 ---------- */
.content-card{
  position:relative;display:block;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);
  box-shadow:var(--shadow-soft);
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.content-card:hover{transform:translateY(-3px);border-color:rgba(14,124,97,.32);box-shadow:var(--shadow-lift)}
.content-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--tint)}
.content-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.content-card:hover .content-thumb img{transform:scale(1.03)}
.thumb-mask{
  position:absolute;inset:0;background:linear-gradient(180deg,rgba(12,21,18,0) 42%,rgba(12,21,18,.72) 100%);
  opacity:0;transition:opacity .32s var(--ease);
  display:flex;align-items:flex-end;justify-content:space-between;padding:16px;
}
.content-card:hover .thumb-mask{opacity:1}
.thumb-mask span{color:#fff;font-size:13.5px;font-weight:600}
.chip{
  display:inline-flex;align-items:center;gap:5px;
  padding:3px 10px;border-radius:999px;font-size:11.5px;font-weight:600;letter-spacing:.02em;
  background:var(--tint);color:var(--primary-deep);border:1px solid rgba(14,124,97,.16);
}
.chip-ghost{background:var(--paper);color:var(--muted);border-color:var(--line)}

/* ---------- 资讯卡 ---------- */
.news-card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;height:100%;
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.news-card:hover{transform:translateY(-3px);border-color:rgba(14,124,97,.32);box-shadow:var(--shadow-lift)}
.news-title{
  font-size:18px;font-weight:700;line-height:1.45;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .24s var(--ease);
}
.news-card:hover .news-title{color:var(--primary-deep)}
.news-sum{
  margin-top:10px;font-size:14px;line-height:1.75;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.empty-box{
  min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  border:1px dashed var(--line);border-radius:var(--radius-card);background:var(--surface);padding:36px;
}

/* ---------- FAQ ---------- */
.faq-item{border-bottom:1px solid var(--line)}
.faq-btn{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:22px 4px;background:transparent;border:none;cursor:pointer;text-align:left;
  font-size:16.5px;font-weight:700;color:var(--ink);line-height:1.6;
  transition:color .24s var(--ease);
}
.faq-btn:hover{color:var(--primary-deep)}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:999px;
  border:1px solid var(--line);position:relative;margin-top:2px;
  transition:border-color .26s var(--ease),background .26s var(--ease),transform .3s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:'';position:absolute;top:50%;left:50%;background:var(--ink-2);
  transform:translate(-50%,-50%);transition:opacity .26s var(--ease),background .26s var(--ease);
}
.faq-icon::before{width:11px;height:1.5px}
.faq-icon::after{width:1.5px;height:11px}
.faq-item.is-open .faq-icon{background:var(--primary);border-color:var(--primary);transform:rotate(90deg)}
.faq-item.is-open .faq-icon::before,.faq-item.is-open .faq-icon::after{background:#fff}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-panel{overflow:hidden;height:0;opacity:0;transition:height .32s var(--ease),opacity .3s var(--ease)}
.faq-item.is-open .faq-panel{opacity:1}
.faq-panel-inner{padding:0 4px 24px;max-width:760px;font-size:15.5px;line-height:1.85;color:var(--muted)}

/* ---------- 深色 CTA ---------- */
.dark-band{background:var(--ink);color:#F5F6F3;position:relative;overflow:hidden}
.dark-band::after{
  content:'';position:absolute;right:-140px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(70,227,168,.18),transparent 68%);pointer-events:none;
}
.dark-band .lede{color:rgba(245,246,243,.72)}
.point-list{display:grid;gap:12px}
.point-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:rgba(245,246,243,.86)}
.point-list li svg{width:16px;height:16px;color:var(--accent);flex:0 0 auto;margin-top:5px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(245,246,243,.72);padding-top:64px}
.footer-title{font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#F5F6F3;font-family:'Inter','Space Grotesk',system-ui,sans-serif;margin-bottom:16px}
.footer-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;padding:6px 0;color:rgba(245,246,243,.7);transition:color .24s var(--ease),transform .24s var(--ease)}
.footer-link:hover{color:var(--accent);transform:translateX(2px)}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(245,246,243,.12);
  padding:22px 0 30px;display:flex;flex-wrap:wrap;gap:10px 20px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(245,246,243,.55);
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
}

/* roulang page: article */
:root{
  --primary:#0E7C61;
  --primary-deep:#0A5A47;
  --accent:#46E3A8;
  --ink:#0C1512;
  --ink-2:#16211E;
  --paper:#F5F6F3;
  --surface:#FFFFFF;
  --tint:#EAF5F0;
  --line:#E3E7E3;
  --muted:#67736E;
  --font-sans:'PingFang SC','HarmonyOS Sans','Microsoft YaHei',system-ui,-apple-system,'Segoe UI',sans-serif;
  --font-num:'Inter','Space Grotesk',system-ui,-apple-system,sans-serif;
  --ease:cubic-bezier(.2,.7,.2,1);
  --shadow-soft:0 1px 2px rgba(12,21,18,.04);
  --shadow-lift:0 16px 40px -20px rgba(12,21,18,.18);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  background:var(--paper);
  color:var(--ink);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.shell{padding:0 32px}}
@media (min-width:1280px){.shell{padding:0 48px}}

/* ---------- Dock 导航 ---------- */
.site-dock{
  position:fixed;left:0;right:0;top:16px;z-index:60;
  display:flex;justify-content:center;padding:0 16px;
  transition:top .24s var(--ease);
}
.dock-inner{
  width:100%;max-width:1080px;display:flex;align-items:center;gap:14px;
  padding:9px 12px 9px 16px;border:1px solid var(--line);border-radius:999px;
  background:rgba(255,255,255,.72);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  box-shadow:var(--shadow-soft);
  transition:box-shadow .26s var(--ease),background .26s var(--ease);
}
.site-dock.is-scrolled .dock-inner{
  background:rgba(255,255,255,.9);
  box-shadow:0 12px 34px -18px rgba(12,21,18,.3);
}
.dock-brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:34px;height:34px;flex:none;display:grid;place-items:center;
  border-radius:11px;background:var(--ink);
}
.brand-mark svg{width:19px;height:19px}
.brand-copy{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:15px;font-weight:800;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
.brand-sub{
  font-family:var(--font-num);font-size:9.5px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--muted);
}
@media (max-width:520px){.brand-sub{display:none}.brand-name{font-size:14px}}

.nav-list{display:none}
@media (min-width:1024px){
  .nav-list{display:flex;align-items:center;gap:2px;margin-left:auto}
}
.nav-link{
  display:inline-flex;align-items:center;height:38px;padding:0 14px;
  border-radius:999px;font-size:14px;color:var(--muted);
  transition:color .2s var(--ease),background .2s var(--ease);
  white-space:nowrap;
}
.nav-link:hover{color:var(--primary);background:var(--tint)}
.nav-link.is-active{color:var(--primary);background:var(--tint);font-weight:600}

.dock-actions{display:flex;align-items:center;gap:6px;margin-left:auto}
@media (min-width:1024px){.dock-actions{margin-left:0}}
.icon-btn{
  width:44px;height:44px;display:grid;place-items:center;border-radius:999px;
  color:var(--muted);transition:color .2s var(--ease),background .2s var(--ease);
}
.icon-btn:hover{color:var(--primary);background:var(--tint)}
.icon-btn svg{width:18px;height:18px}
.menu-toggle{
  width:44px;height:44px;display:grid;place-items:center;border-radius:999px;
  color:var(--ink);transition:background .2s var(--ease);
}
.menu-toggle:hover{background:var(--tint)}
.menu-toggle svg{width:20px;height:20px}
@media (min-width:1024px){.menu-toggle{display:none}}

.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;
  background:var(--primary);color:#fff;font-size:15px;font-weight:600;
  transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
  white-space:nowrap;
}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-1px);box-shadow:0 12px 26px -16px rgba(14,124,97,.85)}
.btn-primary:active{transform:translateY(0)}
.btn-primary svg{width:16px;height:16px;transition:transform .2s var(--ease)}
.btn-primary:hover svg{transform:translateX(3px)}
.dock-cta{height:42px;padding:0 20px;font-size:14px}
@media (max-width:1023px){.dock-cta{display:none}}

.mobile-panel{
  position:fixed;inset:0;z-index:70;display:none;flex-direction:column;
  padding:22px 22px 34px;background:rgba(245,246,243,.985);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.mobile-panel.is-open{display:flex}
.mobile-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:34px}
.mobile-links{display:flex;flex-direction:column;gap:6px;flex:1}
.mobile-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 4px;border-bottom:1px solid var(--line);
  font-size:22px;font-weight:700;letter-spacing:-.01em;color:var(--ink);
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.mobile-link:hover{color:var(--primary);padding-left:10px}
.mobile-link.is-active{color:var(--primary)}
.mobile-link svg{width:18px;height:18px;color:var(--muted)}
.mobile-foot{margin-top:24px}

/* ---------- 文章头部 ---------- */
.article-hero{
  padding-top:130px;padding-bottom:44px;
  background:var(--surface);border-bottom:1px solid var(--line);
}
@media (max-width:767px){.article-hero{padding-top:112px;padding-bottom:34px}}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.crumb a{transition:color .2s var(--ease)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:#C8D2CC}
.crumb .crumb-current{color:var(--ink);opacity:.75;max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{
  margin:18px 0 0;max-width:900px;
  font-size:clamp(28px,4.4vw,46px);line-height:1.22;
  letter-spacing:-.02em;font-weight:800;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  margin-top:22px;font-size:13.5px;color:var(--muted);
}
.tag-pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;background:var(--tint);color:var(--primary);
  font-size:12.5px;font-weight:600;letter-spacing:.01em;
}
.meta-dot{width:3px;height:3px;border-radius:50%;background:#CFD8D3}

/* ---------- 正文 ---------- */
.article-main{padding:56px 0 0}
@media (max-width:767px){.article-main{padding:38px 0 0}}
.article-wrap{width:100%;max-width:880px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.article-wrap{padding:0 32px}}
.article-body{font-size:16.5px;line-height:1.92;color:#243029;word-break:break-word}
.article-body p{margin:0 0 22px}
.article-body h2{
  position:relative;margin:46px 0 18px;padding-left:16px;
  font-size:clamp(21px,2.4vw,27px);line-height:1.35;font-weight:800;
  letter-spacing:-.01em;color:var(--ink);
}
.article-body h2::before{
  content:'';position:absolute;left:0;top:6px;bottom:6px;width:3px;
  border-radius:2px;background:var(--primary);
}
.article-body h3{margin:32px 0 12px;font-size:19px;font-weight:700;color:var(--ink)}
.article-body h4{margin:24px 0 10px;font-size:17px;font-weight:700;color:var(--ink-2)}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:24px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:8px 0}
.article-body ul li::marker{color:var(--primary)}
.article-body ol li::marker{color:var(--primary);font-weight:700}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;border-left:3px solid var(--primary);
  border-radius:0 12px 12px 0;background:var(--tint);color:#2C3B35;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:14px;margin:26px auto;width:100%;height:auto}
.article-body figure{margin:26px 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--muted);margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:12px 10px;text-align:left;vertical-align:top}
.article-body th{font-weight:600;color:var(--ink)}
.article-body pre{
  margin:26px 0;padding:18px 20px;border-radius:12px;overflow-x:auto;
  background:var(--ink);color:#DCE7E2;font-size:14px;line-height:1.7;
}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em;
}
.article-body p code,.article-body li code{
  background:var(--tint);color:var(--primary-deep);padding:2px 6px;border-radius:6px;
}
.article-body a{
  color:var(--primary);border-bottom:1px solid rgba(14,124,97,.35);
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.article-body a:hover{color:var(--primary-deep);border-color:var(--primary-deep)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}

.article-empty{
  min-height:280px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:16px;text-align:center;padding:52px 24px;
  border:1px dashed #D6DED9;border-radius:18px;background:var(--surface);
}
.article-empty svg{width:38px;height:38px;color:var(--muted);opacity:.7}
.article-empty p{margin:0;font-size:16px;color:var(--muted)}

.article-footbar{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:44px;padding-top:26px;border-top:1px solid var(--line);
}
.footbar-label{font-size:13px;color:var(--muted);margin-right:2px}
.chip{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border:1px solid var(--line);border-radius:999px;background:var(--surface);
  font-size:13px;color:var(--muted);
  transition:color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.chip:hover{color:var(--primary);border-color:rgba(14,124,97,.45);transform:translateY(-1px)}

/* ---------- 通用板块 ---------- */
.section{padding:72px 0}
@media (max-width:767px){.section{padding:52px 0}}
.section-head{margin-bottom:32px;max-width:720px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-family:var(--font-num);
  font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--primary);
  margin-bottom:12px;
}
.eyebrow::before{content:'';width:22px;height:1px;background:var(--accent)}
.section-title{
  margin:0;font-size:clamp(23px,3vw,34px);line-height:1.25;
  letter-spacing:-.02em;font-weight:800;color:var(--ink);
}
.section-desc{margin:12px 0 0;font-size:15px;color:var(--muted);max-width:640px}

.post-nav{display:grid;gap:16px;grid-template-columns:1fr}
@media (min-width:768px){.post-nav{grid-template-columns:1fr 1fr}}
.post-card{
  display:block;padding:22px 24px;border:1px solid var(--line);border-radius:16px;
  background:var(--surface);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.post-card:hover{transform:translateY(-3px);border-color:rgba(14,124,97,.45);box-shadow:var(--shadow-lift)}
.post-card .pc-label{font-size:12.5px;color:var(--muted);display:flex;align-items:center;gap:6px}
.post-card .pc-title{
  margin:10px 0 0;font-size:16px;font-weight:700;line-height:1.5;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card:hover .pc-title{color:var(--primary)}

.card-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:640px){.card-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  border:1px solid var(--line);border-radius:18px;background:var(--surface);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(14,124,97,.42);box-shadow:var(--shadow-lift)}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--tint)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-title{
  margin:0;font-size:17px;font-weight:700;line-height:1.5;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-excerpt{margin:0;font-size:14px;line-height:1.75;color:var(--muted)}
.card-meta{
  margin-top:auto;display:flex;align-items:center;gap:10px;
  font-size:12.5px;color:var(--muted);
}
.card-arrow{
  margin-left:auto;display:inline-flex;align-items:center;color:var(--primary);
  transition:transform .24s var(--ease);
}
.card:hover .card-arrow{transform:translateX(4px)}
.card-arrow svg{width:15px;height:15px}

.text-link{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;
  color:var(--primary);
}
.text-link span{position:relative}
.text-link span::after{
  content:'';position:absolute;left:0;bottom:-3px;width:0;height:1px;
  background:var(--primary);transition:width .26s var(--ease);
}
.text-link:hover span::after{width:100%}
.text-link svg{width:16px;height:16px;transition:transform .24s var(--ease)}
.text-link:hover svg{transform:translateX(3px)}
.back-row{display:flex;justify-content:center;padding-bottom:16px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#F5F6F3;padding:76px 0 28px;margin-top:88px}
.footer-title{
  margin:0 0 18px;font-family:var(--font-num);font-size:12px;letter-spacing:.16em;
  text-transform:uppercase;color:rgba(245,246,243,.5);
}
.footer-link{
  display:inline-block;font-size:14px;color:rgba(245,246,243,.72);padding:5px 0;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-link:hover{color:var(--accent);transform:translateX(2px)}
.footer-bottom{
  margin-top:54px;padding-top:22px;border-top:1px solid rgba(245,246,243,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(245,246,243,.5);
}
.grid{display:grid}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;animation-iteration-count:1 !important;
    transition-duration:.01ms !important;scroll-behavior:auto !important;
  }
}

/* roulang page: category1 */
:root{
  --primary:#0E7C61;
  --primary-deep:#0A5A47;
  --accent:#46E3A8;
  --ink:#0C1512;
  --ink-2:#16211E;
  --paper:#F5F6F3;
  --surface:#FFFFFF;
  --tint:#EAF5F0;
  --line:#E3E7E3;
  --muted:#67736E;
  --radius-card:18px;
  --radius-img:14px;
  --radius-pill:999px;
  --shadow-card:0 1px 2px rgba(12,21,18,.04);
  --shadow-lift:0 16px 40px -20px rgba(12,21,18,.18);
  --ease:cubic-bezier(.2,.7,.2,1);
  --font-sans:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-2);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}

.shell{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:768px){.shell{padding-left:32px;padding-right:32px;}}
@media (min-width:1280px){.shell{padding-left:48px;padding-right:48px;}}

/* ============ Dock 导航 ============ */
.dock-wrap{position:fixed;top:16px;left:0;right:0;z-index:80;padding:0 14px;}
.dock{
  max-width:1080px;margin:0 auto;display:flex;align-items:center;gap:14px;
  padding:9px 12px 9px 14px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.72);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border:1px solid var(--line);
  box-shadow:0 1px 2px rgba(12,21,18,.04);
  transition:box-shadow .28s var(--ease),padding .28s var(--ease),background .28s var(--ease);
}
body.is-scrolled .dock{
  padding-top:5px;padding-bottom:5px;
  background:rgba(255,255,255,.88);
  box-shadow:0 14px 34px -20px rgba(12,21,18,.32);
}
.dock-brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;min-height:44px;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(70,227,168,.20),rgba(14,124,97,.10));
  border:1px solid rgba(14,124,97,.24);color:var(--primary);flex:0 0 auto;
}
.brand-mark svg{width:19px;height:19px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:15.5px;font-weight:800;letter-spacing:-.01em;color:var(--ink);}
.brand-sub{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);}
.nav-list{display:none;flex:1 1 auto;justify-content:center;gap:2px;}
.nav-link{
  display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:var(--radius-pill);
  font-size:14.5px;font-weight:500;color:var(--ink-2);white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--primary);background:rgba(14,124,97,.07);}
.nav-link.is-active{color:var(--primary);background:var(--tint);font-weight:700;}
.dock-actions{display:flex;align-items:center;gap:8px;margin-left:auto;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:var(--radius-pill);display:grid;place-items:center;
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.icon-btn:hover{border-color:rgba(14,124,97,.4);color:var(--primary);transform:translateY(-1px);}
.icon-btn svg{width:17px;height:17px;}
.dock-cta{
  display:inline-flex;align-items:center;gap:6px;height:42px;padding:0 18px;border-radius:var(--radius-pill);
  background:var(--primary);color:#fff;font-size:14px;font-weight:600;white-space:nowrap;
  transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.dock-cta:hover{background:var(--primary-deep);transform:translateY(-1px);box-shadow:0 10px 22px -14px rgba(10,90,71,.9);}
.dock-cta:active{transform:translateY(1px);}
.dock-cta svg{width:15px;height:15px;transition:transform .22s var(--ease);}
.dock-cta:hover svg{transform:translateX(3px);}
.hamburger{
  width:44px;height:44px;border-radius:var(--radius-pill);border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;gap:5px;padding:0;
}
.hamburger span{display:block;width:18px;height:1.6px;background:var(--ink);border-radius:2px;transition:transform .24s var(--ease),opacity .2s var(--ease);}
.hamburger[aria-expanded="true"] span:first-child{transform:translateY(3.3px) rotate(45deg);}
.hamburger[aria-expanded="true"] span:last-child{transform:translateY(-3.3px) rotate(-45deg);}

.mobile-panel{
  max-width:1080px;margin:10px auto 0;background:#fff;border:1px solid var(--line);
  border-radius:24px;box-shadow:var(--shadow-lift);padding:18px;display:none;
}
.mobile-panel.is-open{display:block;animation:panelIn .26s var(--ease);}
@keyframes panelIn{from{opacity:0;transform:translateY(-8px);}to{opacity:1;transform:translateY(0);}}
.mobile-nav{display:grid;gap:4px;}
.mobile-nav .nav-link{
  height:auto;padding:14px 16px;border-radius:14px;font-size:17px;font-weight:600;
  border:1px solid transparent;
}
.mobile-nav .nav-link.is-active{background:var(--tint);border-color:rgba(14,124,97,.2);}
.mobile-cta{margin-top:14px;width:100%;justify-content:center;height:50px;}

.search-panel{
  max-width:1080px;margin:10px auto 0;background:#fff;border:1px solid var(--line);
  border-radius:20px;box-shadow:var(--shadow-lift);padding:14px;display:none;
}
.search-panel.is-open{display:block;animation:panelIn .26s var(--ease);}
.search-form{display:flex;gap:10px;flex-wrap:wrap;}
.search-form input{
  flex:1 1 220px;height:48px;padding:0 16px;border:1px solid var(--line);border-radius:12px;
  font-size:15px;color:var(--ink-2);background:var(--paper);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.search-form input::placeholder{color:var(--muted);}
.search-form input:focus{outline:none;border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(70,227,168,.28);}
.search-hint{font-size:13px;color:var(--muted);margin-top:10px;}

@media (min-width:768px){
  .nav-list{display:flex;}
  .hamburger{display:none;}
  .mobile-panel{display:none !important;}
}

/* ============ 按钮 ============ */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 28px;border-radius:var(--radius-pill);
  background:var(--primary);color:#fff;font-size:15px;font-weight:600;border:0;
  transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-1px);box-shadow:0 14px 28px -18px rgba(10,90,71,.95);}
.btn-primary:active{transform:translateY(1px);}
.btn-primary svg{width:16px;height:16px;transition:transform .22s var(--ease);}
.btn-primary:hover svg{transform:translateX(3px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 26px;border-radius:12px;background:transparent;
  border:1px solid var(--ink);color:var(--ink);font-size:15px;font-weight:600;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-1px);}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 28px;border-radius:var(--radius-pill);
  background:var(--accent);color:var(--ink);font-size:15px;font-weight:700;border:0;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),filter .2s var(--ease);
}
.btn-accent:hover{transform:translateY(-1px);filter:brightness(1.04);box-shadow:0 14px 30px -18px rgba(70,227,168,.9);}
.link-underline{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--primary);padding-bottom:2px;
}
.link-underline::after{
  content:"";position:absolute;left:0;bottom:0;height:1.5px;width:100%;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .26s var(--ease);
}
.link-underline:hover::after{transform:scaleX(1);}

/* ============ Hero ============ */
.hero-cat{padding-top:124px;padding-bottom:8px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--primary);background:var(--tint);border:1px solid rgba(14,124,97,.18);
  padding:6px 14px;border-radius:var(--radius-pill);
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);}
.hero-cat h1{
  font-size:clamp(34px,4.6vw,56px);line-height:1.1;letter-spacing:-.02em;
  font-weight:800;color:var(--ink);margin-top:22px;max-width:820px;
}
.hero-lead{
  margin-top:20px;max-width:640px;font-size:17px;line-height:1.85;color:var(--muted);
}
.hero-cta{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;}

/* 数据条 */
.stat-bar{
  margin-top:44px;display:grid;grid-template-columns:1fr;gap:0;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.stat{
  display:flex;align-items:baseline;gap:12px;padding:20px 0;border-top:1px solid var(--line);
}
.stat:first-child{border-top:0;}
.stat-num{
  font-family:var(--font-mono);font-size:32px;font-weight:700;color:var(--ink);
  letter-spacing:-.02em;font-variant-numeric:tabular-nums;line-height:1;
}
.stat-suffix{font-family:var(--font-mono);font-size:16px;color:var(--primary);font-weight:600;}
.stat-label{font-size:14px;color:var(--muted);}
@media (min-width:768px){
  .stat-bar{grid-template-columns:repeat(4,1fr);}
  .stat{border-top:0;border-left:1px solid var(--line);padding:26px 24px;flex-direction:column;gap:8px;}
  .stat:first-child{border-left:0;padding-left:0;}
}

/* ============ 通用板块 ============ */
.section{padding-top:64px;padding-bottom:64px;}
@media (min-width:768px){.section{padding-top:88px;padding-bottom:88px;}}
@media (min-width:1024px){.section{padding-top:110px;padding-bottom:110px;}}
.section-head{max-width:720px;}
.section-head h2{
  font-size:clamp(26px,3.2vw,40px);line-height:1.2;letter-spacing:-.02em;
  font-weight:800;color:var(--ink);
}
.section-head p{margin-top:14px;font-size:16px;color:var(--muted);}
.section-kicker{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--primary);margin-bottom:14px;display:block;
}

/* ============ 文档布局：目录 + 长文 ============ */
.doc-layout{display:grid;grid-template-columns:1fr;gap:40px;}
@media (min-width:1024px){.doc-layout{grid-template-columns:240px minmax(0,1fr);gap:64px;}}
.toc{
  border:1px solid var(--line);border-radius:16px;background:var(--surface);
  padding:20px;box-shadow:var(--shadow-card);
}
@media (min-width:1024px){.toc{position:sticky;top:112px;}}
.toc-title{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);margin-bottom:10px;
}
.toc-list li + li{border-top:1px solid var(--line);}
.toc-link{
  display:flex;align-items:center;gap:10px;padding:11px 0;font-size:14px;color:var(--muted);
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.toc-link:hover{color:var(--primary);padding-left:4px;}
.toc-link .idx{font-family:var(--font-mono);font-size:11.5px;color:var(--primary);}

.doc-block{
  display:grid;gap:26px;padding:38px 0;border-top:1px solid var(--line);
}
.doc-block:first-child{border-top:0;padding-top:0;}
.doc-block:last-child{padding-bottom:0;}
@media (min-width:768px){
  .doc-block{grid-template-columns:1fr 1fr;gap:44px;align-items:center;padding:46px 0;}
  .doc-block.is-reverse .doc-media{order:-1;}
}
.doc-index{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.doc-index .num{
  font-family:var(--font-mono);font-size:13px;font-weight:700;color:var(--primary);
  background:var(--tint);border:1px solid rgba(14,124,97,.2);border-radius:var(--radius-pill);
  padding:3px 10px;
}
.doc-index .bar{flex:1 1 auto;height:2px;background:var(--line);border-radius:2px;overflow:hidden;max-width:100px;}
.doc-index .bar span{display:block;height:100%;background:var(--accent);transition:width .6s var(--ease);}
.doc-index .total{font-family:var(--font-mono);font-size:11.5px;color:var(--muted);}
.doc-body h3{font-size:clamp(20px,2.2vw,24px);font-weight:700;color:var(--ink);line-height:1.35;letter-spacing:-.01em;}
.doc-body p{margin-top:14px;font-size:15.5px;line-height:1.85;color:var(--muted);}
.doc-points{margin-top:18px;display:grid;gap:10px;}
.doc-points li{
  position:relative;padding-left:22px;font-size:15px;color:var(--ink-2);line-height:1.75;
}
.doc-points li::before{
  content:"";position:absolute;left:0;top:10px;width:9px;height:9px;border-radius:3px;
  border:1.5px solid var(--primary);opacity:.65;
}
.media-frame{
  aspect-ratio:16/10;border-radius:var(--radius-img);overflow:hidden;
  border:1px solid var(--line);background:var(--tint);
}
.media-frame img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.media-frame:hover img{transform:scale(1.03);}
.media-frame.wide{aspect-ratio:16/9;}

/* ============ 运行环境定义列表 ============ */
.env-wrap{display:grid;grid-template-columns:1fr;gap:0 56px;margin-top:44px;}
@media (min-width:900px){.env-wrap{grid-template-columns:1fr 1fr;}}
.env-row{
  display:grid;grid-template-columns:1fr;gap:4px;padding:16px 0;
  border-bottom:1px solid var(--line);
}
@media (min-width:640px){
  .env-row{grid-template-columns:190px minmax(0,1fr);gap:20px;align-items:baseline;}
}
.env-row dt{font-size:14px;color:var(--muted);}
.env-row dd{margin:0;font-size:15.5px;color:var(--ink-2);font-weight:500;}
.env-row dd .tag{
  display:inline-block;font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;
  color:var(--primary);background:var(--tint);border-radius:var(--radius-pill);
  padding:2px 9px;margin-left:8px;vertical-align:middle;
}

/* ============ 场景网格 ============ */
.scene-grid{display:grid;grid-template-columns:1fr;gap:22px;margin-top:44px;}
@media (min-width:820px){
  .scene-grid{grid-template-columns:1fr 1fr;}
  .scene-card.is-wide{grid-column:span 2;}
}
.scene-card{
  border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lift);border-color:rgba(14,124,97,.3);}
.scene-card .media-frame{border:0;border-radius:0;}
.scene-body{padding:24px 26px 26px;}
.scene-body h3{font-size:19px;font-weight:700;color:var(--ink);}
.scene-body p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--muted);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;}
.tag-pill{
  font-size:12.5px;color:var(--primary);background:var(--tint);
  border:1px solid rgba(14,124,97,.16);border-radius:var(--radius-pill);padding:3px 11px;
}
.tag-pill.hot{color:#0A5A47;background:rgba(70,227,168,.22);border-color:rgba(70,227,168,.5);}

/* ============ FAQ ============ */
.faq-list{margin-top:36px;max-width:880px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:22px 0;background:none;border:0;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--ink);line-height:1.6;
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--primary);}
.faq-icon{position:relative;flex:0 0 auto;width:20px;height:20px;margin-top:3px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);transition:transform .28s var(--ease),opacity .22s var(--ease);
}
.faq-icon::before{width:14px;height:1.6px;}
.faq-icon::after{width:1.6px;height:14px;}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-a{max-height:0;overflow:hidden;opacity:0;transition:max-height .34s var(--ease),opacity .26s var(--ease);}
.faq-item.is-open .faq-a{opacity:1;}
.faq-a p{padding:0 0 24px;max-width:760px;font-size:15px;line-height:1.85;color:var(--muted);}

/* ============ CTA 区 ============ */
.cta-band{
  position:relative;border-radius:24px;overflow:hidden;border:1px solid rgba(14,124,97,.16);
  background-color:var(--tint);
  background-image:linear-gradient(rgba(234,245,240,.93),rgba(234,245,240,.97)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  padding:44px 26px;
}
@media (min-width:768px){.cta-band{padding:60px 56px;}}
.cta-band h2{font-size:clamp(24px,3vw,36px);line-height:1.22;font-weight:800;color:var(--ink);letter-spacing:-.02em;max-width:640px;}
.cta-band p{margin-top:16px;max-width:600px;font-size:16px;color:var(--muted);}
.cta-points{margin-top:28px;display:grid;gap:12px;}
@media (min-width:768px){.cta-points{grid-template-columns:repeat(3,1fr);gap:20px;}}
.cta-points li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2);line-height:1.7;}
.cta-points li svg{width:18px;height:18px;flex:0 0 auto;margin-top:3px;color:var(--primary);}
.cta-actions{margin-top:34px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#F5F6F3;padding:68px 0 30px;margin-top:0;}
.footer-title{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:rgba(245,246,243,.5);margin-bottom:16px;
}
.footer-link{
  font-size:14px;line-height:2.15;color:rgba(245,246,243,.72);
  transition:color .2s var(--ease);
}
.footer-link:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px;}
.site-footer .brand-name{color:#F5F6F3;}
.site-footer .brand-sub{color:rgba(245,246,243,.5);}
.footer-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid rgba(245,246,243,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(245,246,243,.5);
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
:root{
    --primary:#0E7C61;
    --primary-deep:#0A5A47;
    --accent:#46E3A8;
    --ink:#0C1512;
    --ink-2:#16211E;
    --paper:#F5F6F3;
    --surface:#FFFFFF;
    --tint:#EAF5F0;
    --line:#E3E7E3;
    --muted:#67736E;
    --r-card:18px;
    --r-sm:12px;
    --shadow-1:0 1px 2px rgba(12,21,18,.04);
    --shadow-2:0 16px 40px -20px rgba(12,21,18,.18);
    --ease:cubic-bezier(.2,.7,.2,1);
    --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth;scroll-padding-top:120px}
  body{
    margin:0;
    font-family:var(--font);
    background:var(--paper);
    color:var(--ink);
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  img{max-width:100%;display:block;height:auto}
  a{color:inherit;text-decoration:none}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
  ul,ol{margin:0;padding:0}
  h1,h2,h3,h4,p{margin:0}
  :focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:8px}

  .shell{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
  @media (min-width:768px){.shell{padding-left:32px;padding-right:32px}}
  @media (min-width:1024px){.shell{padding-left:48px;padding-right:48px}}

  .num{font-variant-numeric:tabular-nums;letter-spacing:.01em}

  /* ---------- 浮动 Dock 导航 ---------- */
  .site-header{position:fixed;top:16px;left:0;right:0;z-index:80;pointer-events:none;padding:0 16px}
  .dock{
    pointer-events:auto;
    max-width:1080px;
    margin:0 auto;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    background:rgba(255,255,255,.72);
    -webkit-backdrop-filter:blur(16px);
    backdrop-filter:blur(16px);
    border:1px solid var(--line);
    border-radius:999px;
    padding:10px 12px 10px 18px;
    box-shadow:var(--shadow-1);
    transition:padding .3s var(--ease),box-shadow .3s var(--ease),background-color .3s var(--ease);
  }
  .dock.is-scrolled{padding:6px 10px 6px 16px;box-shadow:0 12px 32px -20px rgba(12,21,18,.42);background:rgba(255,255,255,.86)}

  .dock-brand{display:flex;align-items:center;gap:10px;min-height:44px;flex-shrink:1;min-width:0}
  .brand-mark{
    width:36px;height:36px;flex:none;border-radius:12px;
    display:grid;place-items:center;
    background:var(--tint);border:1px solid rgba(14,124,97,.18);
  }
  .brand-mark svg{width:22px;height:22px}
  .brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
  .brand-name{font-size:15px;font-weight:700;letter-spacing:-.01em;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .brand-sub{font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}

  .nav-list{display:none;align-items:center;gap:2px}
  .nav-link{
    display:inline-flex;align-items:center;min-height:44px;
    padding:0 15px;border-radius:999px;
    font-size:14.5px;color:var(--muted);
    transition:color .2s var(--ease),background-color .2s var(--ease);
  }
  .nav-link:hover{color:var(--ink);background:rgba(14,124,97,.07)}
  .nav-link.is-active{color:var(--primary);background:var(--tint);font-weight:600}

  .dock-actions{display:flex;align-items:center;gap:8px}
  .icon-btn{
    width:44px;height:44px;border-radius:999px;
    display:grid;place-items:center;color:var(--muted);
    transition:color .2s var(--ease),background-color .2s var(--ease);
  }
  .icon-btn:hover{color:var(--primary);background:var(--tint)}
  .icon-btn svg{width:19px;height:19px}
  .dock-actions .btn-primary{display:none}

  .hamburger{
    width:44px;height:44px;border-radius:999px;display:grid;place-content:center;gap:5px;
    border:1px solid var(--line);background:#fff;
  }
  .hamburger span{display:block;width:17px;height:1.6px;background:var(--ink);border-radius:2px;transition:transform .25s var(--ease),opacity .25s var(--ease)}
  .hamburger.is-open span:first-child{transform:translateY(3.3px) rotate(45deg)}
  .hamburger.is-open span:last-child{transform:translateY(-3.3px) rotate(-45deg)}

  .mobile-panel{
    pointer-events:auto;
    position:fixed;inset:12px;z-index:79;
    background:#fff;border:1px solid var(--line);border-radius:28px;
    padding:96px 28px 28px;
    display:flex;flex-direction:column;gap:6px;
    opacity:0;visibility:hidden;transform:translateY(-14px) scale(.985);
    transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s var(--ease);
    overflow-y:auto;
  }
  .mobile-panel.is-open{opacity:1;visibility:visible;transform:none}
  .mobile-panel .nav-link{font-size:22px;font-weight:700;padding:16px 8px;color:var(--ink);border-radius:14px;justify-content:flex-start}
  .mobile-panel .nav-link.is-active{color:var(--primary);background:var(--tint)}
  .mobile-panel .btn{margin-top:20px;width:100%}

  @media (min-width:768px){
    .nav-list{display:flex}
    .dock-actions .btn-primary{display:inline-flex}
    .hamburger{display:none}
    .mobile-panel{display:none}
  }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:50px;padding:0 26px;border-radius:999px;
    font-size:15px;font-weight:600;white-space:nowrap;
    transition:transform .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .btn-primary{background:var(--primary);color:#fff}
  .btn-primary:hover{background:var(--primary-deep);transform:translateY(-1px);box-shadow:0 12px 26px -16px rgba(10,90,71,.7)}
  .btn-primary:active{transform:translateY(1px)}
  .btn-ghost{background:transparent;border:1px solid var(--ink);color:var(--ink)}
  .btn-ghost:hover{background:var(--ink);color:#fff}
  .btn-ghost:active{transform:translateY(1px)}
  .btn-accent{background:var(--accent);color:var(--ink)}
  .btn-accent:hover{background:#5ff0bd;transform:translateY(-1px)}
  .btn-accent:active{transform:translateY(1px)}
  .btn-sm{height:44px;padding:0 20px;font-size:14px}
  .btn .arrow{transition:transform .22s var(--ease)}
  .btn:hover .arrow{transform:translateX(3px)}

  .link-underline{position:relative;display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--primary)}
  .link-underline::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:1.5px;background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .28s var(--ease)}
  .link-underline:hover::after{transform:scaleX(1)}

  /* ---------- 通用版块 ---------- */
  .page-main{padding-top:112px}
  .section{padding-top:56px;padding-bottom:56px}
  @media (min-width:768px){.section{padding-top:72px;padding-bottom:72px}}
  @media (min-width:1024px){.section{padding-top:104px;padding-bottom:104px}}

  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;letter-spacing:.16em;text-transform:uppercase;
    color:var(--primary);font-weight:600;margin-bottom:16px;
  }
  .eyebrow::before{content:"";width:22px;height:1px;background:var(--primary);display:block}

  .h2{font-size:clamp(26px,3.2vw,42px);line-height:1.2;letter-spacing:-.02em;font-weight:800}
  .h3{font-size:20px;line-height:1.35;font-weight:700;letter-spacing:-.01em}
  .lead{font-size:16px;line-height:1.85;color:var(--muted);max-width:640px}

  /* ---------- Hero ---------- */
  .hero{position:relative;overflow:hidden;padding-top:16px;padding-bottom:48px}
  .hero::before{
    content:"";position:absolute;inset:0;z-index:-1;
    background-image:linear-gradient(rgba(14,124,97,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(14,124,97,.055) 1px,transparent 1px);
    background-size:64px 64px;
    -webkit-mask-image:radial-gradient(120% 80% at 20% 0%,#000 0%,transparent 72%);
    mask-image:radial-gradient(120% 80% at 20% 0%,#000 0%,transparent 72%);
  }
  .hero h1{
    font-size:clamp(34px,5vw,60px);
    line-height:1.1;letter-spacing:-.02em;font-weight:800;
    max-width:820px;
  }
  .hero .lead{margin-top:20px;max-width:660px;font-size:17px}
  .hero-actions{margin-top:32px;display:flex;flex-wrap:wrap;gap:14px;align-items:center}
  .hero-facts{
    margin-top:44px;display:flex;flex-wrap:wrap;gap:12px 32px;
    padding-top:24px;border-top:1px solid var(--line);
  }
  .fact{display:flex;align-items:baseline;gap:10px}
  .fact-num{font-size:26px;font-weight:800;color:var(--primary);letter-spacing:-.02em}
  .fact-label{font-size:13.5px;color:var(--muted)}

  /* ---------- 对照表 ---------- */
  .compare-wrap{
    margin-top:32px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    overflow-x:auto;
    -webkit-overflow-scrolling:touch;
  }
  .compare-table{width:100%;min-width:820px;border-collapse:separate;border-spacing:0}
  .compare-table th,.compare-table td{
    padding:16px 20px;text-align:left;font-size:15px;
    border-bottom:1px solid var(--line);vertical-align:middle;
  }
  .compare-table thead th{
    position:sticky;top:0;z-index:2;background:#fff;
    font-size:13.5px;color:var(--muted);font-weight:600;letter-spacing:.02em;
  }
  .compare-table tbody tr:last-child td{border-bottom:0}
  .compare-table tbody tr:hover td{background:#FAFBFA}
  .col-item{width:26%;font-weight:600;color:var(--ink)}
  .is-featured{background:linear-gradient(180deg,rgba(234,245,240,.95),rgba(234,245,240,.42))}
  .compare-table th.is-featured{border-left:2px solid var(--primary);border-right:2px solid var(--primary)}
  .compare-table td.is-featured{border-left:2px solid rgba(14,124,97,.35);border-right:2px solid rgba(14,124,97,.35)}
  .compare-table tbody tr:last-child td.is-featured{border-bottom-left-radius:16px;border-bottom-right-radius:16px}
  .feat-badge{
    display:inline-flex;align-items:center;height:22px;padding:0 10px;margin-right:8px;
    border-radius:999px;background:var(--primary);color:#fff;
    font-size:11.5px;letter-spacing:.04em;font-weight:600;
  }
  .mark{display:inline-block;width:18px;height:18px;vertical-align:-3px}
  .mark-yes::before,.mark-no::before{
    content:"";display:block;width:18px;height:18px;
    -webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;
    -webkit-mask-position:center;mask-position:center;
    -webkit-mask-size:contain;mask-size:contain;
  }
  .mark-yes::before{background:var(--primary);-webkit-mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4.5 12.4l5 5L19.5 7'/%3E%3C/svg%3E");mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4.5 12.4l5 5L19.5 7'/%3E%3C/svg%3E")}
  .mark-no::before{background:var(--muted);-webkit-mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2.2' stroke-linecap='round'%3E%3Cpath d='M5.5 12h13'/%3E%3C/svg%3E");mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2.2' stroke-linecap='round'%3E%3Cpath d='M5.5 12h13'/%3E%3C/svg%3E")}
  .scroll-hint{margin-top:12px;font-size:13px;color:var(--muted)}

  /* ---------- 等级阶梯 ---------- */
  .tier-stack{margin-top:36px}
  .tier-row{position:relative;display:grid;grid-template-columns:44px 1fr;gap:14px;padding-bottom:28px}
  .tier-row:last-child{padding-bottom:0}
  .tier-row::before{
    content:"";position:absolute;left:21px;top:52px;bottom:0;width:2px;
    background:linear-gradient(180deg,rgba(14,124,97,.45),rgba(70,227,168,.2));
  }
  .tier-row:last-child::before{display:none}
  .tier-dot{
    position:relative;z-index:1;
    width:44px;height:44px;border-radius:50%;
    background:#fff;border:1px solid var(--line);
    display:grid;place-items:center;
    font-size:14px;font-weight:800;color:var(--primary);letter-spacing:-.01em;
  }
  .tier-card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
    padding:22px 22px 24px;
    transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
  }
  .tier-card:hover{transform:translateY(-3px);border-color:rgba(14,124,97,.3);box-shadow:var(--shadow-2)}
  .tier-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:10px}
  .tier-name{font-size:21px;font-weight:800;letter-spacing:-.01em}
  .tier-gate{font-size:13.5px;color:var(--muted)}
  .tier-list{margin-top:16px;display:grid;gap:8px}
  .tier-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);line-height:1.7}
  .tier-list li::before{content:"";flex:none;width:6px;height:6px;margin-top:10px;border-radius:50%;background:var(--accent)}
  .tier-foot{margin-top:20px;display:flex;align-items:center;gap:18px;flex-wrap:wrap}

  @media (min-width:768px){
    .tier-row{grid-template-columns:64px 1fr;gap:24px;padding-bottom:36px}
    .tier-row::before{left:31px;top:70px}
    .tier-dot{width:64px;height:64px;font-size:17px}
    .tier-card{padding:28px 32px 30px}
  }

  /* ---------- 权益细则 ---------- */
  .rights-wrap{margin-top:32px;border-top:1px solid var(--line)}
  .rights-grid{display:grid;grid-template-columns:1fr;column-gap:48px}
  @media (min-width:768px){.rights-grid{grid-template-columns:1fr 1fr}}
  .rights-item{display:flex;gap:14px;padding:20px 0;border-bottom:1px solid var(--line);transition:background-color .2s var(--ease)}
  .rights-item:hover{background:rgba(234,245,240,.5)}
  .rights-idx{
    flex:none;width:28px;height:28px;border-radius:9px;display:grid;place-items:center;
    background:var(--tint);color:var(--primary);
    font-size:12.5px;font-weight:700;
  }
  .rights-title{font-size:16px;font-weight:700;letter-spacing:-.01em}
  .rights-desc{font-size:14.5px;color:var(--muted);line-height:1.8;margin-top:4px}

  /* ---------- FAQ ---------- */
  .faq-list{max-width:880px;margin-top:32px;border-top:1px solid var(--line)}
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
    padding:22px 0;text-align:left;font-size:17px;font-weight:600;letter-spacing:-.01em;
    transition:color .2s var(--ease);
  }
  .faq-q:hover{color:var(--primary)}
  .faq-icon{flex:none;position:relative;width:20px;height:20px}
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;background:var(--primary);border-radius:2px;
    transition:transform .28s var(--ease),opacity .28s var(--ease);
  }
  .faq-icon::before{left:0;top:9px;width:20px;height:1.6px}
  .faq-icon::after{left:9px;top:0;width:1.6px;height:20px}
  .faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0}
  .faq-a{max-height:0;overflow:hidden;opacity:0;transition:max-height .32s var(--ease),opacity .32s var(--ease)}
  .faq-item.is-open .faq-a{opacity:1}
  .faq-a p{padding:0 0 24px;font-size:15.5px;line-height:1.85;color:var(--muted);max-width:760px}

  /* ---------- 深色 CTA ---------- */
  .cta-dark{
    background:var(--ink);color:#F5F6F3;border-radius:26px;
    padding:40px 24px;position:relative;overflow:hidden;
  }
  .cta-dark::after{
    content:"";position:absolute;right:-120px;top:-120px;width:340px;height:340px;border-radius:50%;
    background:radial-gradient(circle,rgba(70,227,168,.22),transparent 68%);
  }
  .cta-dark .h2{color:#F5F6F3;position:relative;z-index:1}
  .cta-dark p{color:rgba(245,246,243,.7);position:relative;z-index:1}
  .cta-points{position:relative;z-index:1;margin-top:28px;display:grid;gap:10px}
  .cta-points li{display:flex;gap:10px;font-size:14.5px;color:rgba(245,246,243,.82)}
  .cta-points li::before{content:"";flex:none;width:6px;height:6px;margin-top:10px;border-radius:50%;background:var(--accent)}
  .cta-media{position:relative;z-index:1;border-radius:14px;overflow:hidden;border:1px solid rgba(245,246,243,.14);aspect-ratio:16/9}
  .cta-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
  .cta-media:hover img{transform:scale(1.03)}
  @media (min-width:768px){.cta-dark{padding:64px 56px}}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--ink);color:#F5F6F3;margin-top:72px;padding:64px 0 32px}
  .site-footer ul{list-style:none;margin:0;padding:0}
  .site-footer .brand-mark{background:rgba(70,227,168,.1);border-color:rgba(70,227,168,.22)}
  .footer-title{font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;color:rgba(245,246,243,.45);margin-bottom:16px;font-weight:600}
  .footer-link{display:inline-block;padding:5px 0;font-size:14.5px;color:rgba(245,246,243,.72);transition:color .2s var(--ease),transform .2s var(--ease)}
  .footer-link:hover{color:var(--accent);transform:translateX(2px)}
  .footer-bottom{
    margin-top:48px;padding-top:24px;border-top:1px solid rgba(245,246,243,.12);
    display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
    font-size:13px;color:rgba(245,246,243,.5);line-height:1.7;
  }

  /* ---------- 入场动效 ---------- */
  .reveal{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
  .reveal.is-in{opacity:1;transform:none}

  @media (prefers-reduced-motion:reduce){
    html{scroll-behavior:auto}
    *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
    .reveal{opacity:1;transform:none}
  }

/* roulang page: category3 */
:root{
  --primary:#0E7C61;
  --primary-deep:#0A5A47;
  --accent:#46E3A8;
  --ink:#0C1512;
  --ink-2:#16211E;
  --paper:#F5F6F3;
  --surface:#FFFFFF;
  --tint:#EAF5F0;
  --line:#E3E7E3;
  --muted:#67736E;
  --radius-card:18px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(12,21,18,.04);
  --shadow-2:0 16px 40px -20px rgba(12,21,18,.18);
  --ease:cubic-bezier(.2,.7,.2,1);
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter","Space Grotesk",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:130px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
ul,ol{margin:0;padding:0}
p{margin:0}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
  border-radius:14px;
}
::selection{background:rgba(70,227,168,.35)}

.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.shell{padding:0 32px}}
@media (min-width:1024px){.shell{padding:0 48px}}

/* ---------- 浮动 Dock 导航 ---------- */
.nav-dock-wrap{
  position:fixed;top:16px;left:0;right:0;z-index:70;
  display:flex;justify-content:center;padding:0 14px;pointer-events:none;
}
.nav-dock{
  pointer-events:auto;
  width:100%;max-width:1080px;
  display:flex;align-items:center;gap:14px;
  padding:10px 12px 10px 18px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.72);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border:1px solid var(--line);
  box-shadow:0 8px 24px -18px rgba(12,21,18,.35);
  transition:padding .28s var(--ease),box-shadow .28s var(--ease),background-color .28s var(--ease);
}
.nav-dock.is-scrolled{
  padding:6px 10px 6px 16px;
  background:rgba(255,255,255,.88);
  box-shadow:0 14px 34px -18px rgba(12,21,18,.42);
}
.brand{display:flex;align-items:center;gap:10px;min-width:0;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:12px;
  display:grid;place-items:center;background:var(--ink);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.brand-name{font-size:15px;font-weight:700;color:var(--ink);white-space:nowrap}
.brand-sub{font-size:10.5px;color:var(--muted);letter-spacing:.1em;text-transform:uppercase}
.nav-list{display:flex;align-items:center;gap:2px;margin:0 auto}
.nav-link{
  display:inline-flex;align-items:center;height:40px;padding:0 14px;
  border-radius:var(--radius-pill);font-size:14.5px;color:#3c4744;
  white-space:nowrap;transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-link:hover{color:var(--primary);background:rgba(14,124,97,.07)}
.nav-link.is-active{color:var(--primary);background:var(--tint);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.nav-burger{
  display:none;width:44px;height:44px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:var(--surface);
  align-items:center;justify-items:center;gap:4px;cursor:pointer;
  padding:0;transition:border-color .2s var(--ease);
}
.nav-burger span{display:block;width:18px;height:1.6px;background:var(--ink);border-radius:2px;transition:transform .24s var(--ease),opacity .2s var(--ease)}
.nav-burger:hover{border-color:rgba(14,124,97,.45)}
.nav-burger.is-open span:nth-child(1){transform:translateY(5.6px) rotate(45deg)}
.nav-burger.is-open span:nth-child(2){opacity:0}
.nav-burger.is-open span:nth-child(3){transform:translateY(-5.6px) rotate(-45deg)}
.nav-panel{
  position:fixed;inset:12px;z-index:65;display:none;
  flex-direction:column;gap:2px;
  padding:100px 24px 28px;
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border:1px solid var(--line);border-radius:28px;
  box-shadow:var(--shadow-2);overflow-y:auto;
}
.nav-panel.is-open{display:flex}
.nav-panel-link{
  font-size:21px;font-weight:700;padding:16px 4px;
  border-bottom:1px solid var(--line);color:var(--ink);
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.nav-panel-link:hover:.nav-panel-link{}
.nav-panel-link:hover{color:var(--primary);padding-left:8px}
.nav-panel-link.is-active{color:var(--primary)}
@media (max-width:1023px){
  .nav-list{display:none}
  .nav-actions{display:none}
  .nav-burger{display:grid}
  .nav-dock{justify-content:space-between}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border-radius:var(--radius-pill);
  border:1px solid transparent;background:transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:transform .22s var(--ease),background-color .22s var(--ease),
             color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-1px);box-shadow:0 14px 28px -18px rgba(14,124,97,.9)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.btn-block{width:100%}
.btn .arrow{display:inline-block;transition:transform .22s var(--ease)}
.btn:hover .arrow{transform:translateX(3px)}

/* ---------- 标题体系 ---------- */
.h1{font-size:clamp(34px,5.6vw,62px);line-height:1.1;font-weight:800}
.h2{font-size:clamp(26px,3.2vw,40px);line-height:1.2;font-weight:800}
.h3{font-size:20px;line-height:1.45;font-weight:700}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.04em;color:var(--primary);
  background:var(--tint);border-radius:var(--radius-pill);
  padding:6px 14px;margin:0 0 22px;
}
.lead{font-size:17px;line-height:1.85;color:var(--muted)}
.sec-lead{font-size:16px;line-height:1.8;color:var(--muted);margin-top:14px;max-width:660px}

/* ---------- Hero ---------- */
.hero{padding:132px 0 56px}
@media (min-width:768px){.hero{padding:164px 0 76px}}
.hero-inner{max-width:760px;margin:0 auto;text-align:center}
.hero .lead{margin:22px auto 0;max-width:620px}
.search-box{
  display:flex;align-items:center;gap:12px;
  margin:32px auto 0;max-width:620px;height:58px;padding:0 20px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:16px;box-shadow:var(--shadow-1);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px rgba(70,227,168,.2)}
.search-box svg{width:19px;height:19px;flex:0 0 19px;stroke:var(--muted)}
.search-box input{
  flex:1;min-width:0;height:100%;border:0;background:transparent;
  font-size:15.5px;color:var(--ink);outline:none;
}
.search-box input:focus-visible{outline:none}
.search-box input::placeholder{color:#A6B0AC}
.search-hint{font-size:13px;color:var(--muted);white-space:nowrap}
.chip{
  display:inline-flex;align-items:center;height:40px;padding:0 18px;
  border-radius:var(--radius-pill);border:1px solid var(--line);
  background:var(--surface);font-size:14px;color:var(--ink-2);
  transition:transform .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),box-shadow .22s var(--ease);
}
.chip:hover{border-color:rgba(14,124,97,.45);color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-1)}

/* ---------- 板块 ---------- */
.section{padding:64px 0}
@media (min-width:768px){.section{padding:88px 0}}
@media (min-width:1024px){.section{padding:112px 0}}
.section-white{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{margin-bottom:36px}
@media (min-width:768px){.section-head{margin-bottom:48px}}

/* ---------- 热度榜 ---------- */
.heat-list{list-style:none;margin:34px 0 0;border-top:1px solid var(--line)}
.heat-row{
  display:flex;align-items:flex-start;gap:20px;
  padding:20px 0;border-bottom:1px solid var(--line);
}
.heat-index{
  flex:0 0 34px;width:34px;
  font-family:var(--font-num);font-size:14px;font-weight:700;
  color:var(--primary);letter-spacing:.04em;line-height:1.9;
}
.heat-body{flex:1;min-width:0}
.heat-title{
  display:inline-block;font-size:15.5px;font-weight:600;color:var(--ink);
  line-height:1.6;transition:color .2s var(--ease);
}
.heat-title:hover{color:var(--primary)}
.heat-bar{
  display:block;height:3px;max-width:420px;margin-top:12px;
  border-radius:2px;background:var(--line);overflow:hidden;
}
.heat-bar i{display:block;height:100%;border-radius:2px;background:linear-gradient(90deg,var(--primary),var(--accent))}
.heat-tag{
  flex:0 0 auto;font-size:12px;line-height:1;color:var(--primary);
  background:var(--tint);border-radius:var(--radius-pill);
  padding:7px 11px;margin-top:4px;white-space:nowrap;
}
@media (max-width:640px){
  .heat-row{gap:14px}
  .heat-bar{max-width:100%}
}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;gap:44px}
@media (min-width:1024px){
  .faq-grid{grid-template-columns:1fr 1fr;gap:48px 44px}
  .faq-group-wide{grid-column:1 / -1}
}
.faq-group-title{
  display:flex;align-items:center;gap:10px;
  font-size:15px;font-weight:700;color:var(--primary);
  padding-bottom:14px;border-bottom:2px solid var(--tint);
  margin-bottom:8px;
}
.faq-group-title::before{
  content:"";width:8px;height:8px;border-radius:3px;
  background:var(--accent);flex:0 0 8px;
}
.faq-group-wide .acc-list{display:grid;gap:0}
@media (min-width:900px){
  .faq-group-wide .acc-list{grid-template-columns:1fr 1fr;column-gap:44px}
}
.acc-item{border-bottom:1px solid var(--line)}
.acc-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:18px 2px;background:none;border:0;text-align:left;cursor:pointer;
  font-size:15.5px;font-weight:600;line-height:1.65;color:var(--ink);
  transition:color .2s var(--ease);
}
.acc-q:hover{color:var(--primary)}
.acc-icon{position:relative;flex:0 0 18px;width:18px;height:18px;margin-top:5px}
.acc-icon::before,.acc-icon::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform .28s var(--ease),opacity .24s var(--ease);
}
.acc-icon::before{width:14px;height:1.6px}
.acc-icon::after{width:1.6px;height:14px}
.acc-item.open .acc-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.acc-a{height:0;overflow:hidden;opacity:0;transition:height .32s var(--ease),opacity .26s var(--ease)}
.acc-item.open .acc-a{opacity:1}
.acc-a-inner{padding:0 34px 20px 2px;font-size:15px;line-height:1.85;color:var(--muted)}
.faq-empty{
  display:none;margin-top:32px;padding:36px 24px;text-align:center;
  border:1px dashed var(--line);border-radius:var(--radius-card);
  background:var(--surface);color:var(--muted);font-size:15px;
}
.faq-empty.is-visible{display:block}

/* ---------- 排查步骤 ---------- */
.steps{list-style:none;position:relative;margin:44px 0 0;padding:0}
.steps::before{
  content:"";position:absolute;left:19px;top:16px;bottom:16px;width:1px;
  background:linear-gradient(180deg,var(--accent),rgba(70,227,168,.06));
}
.step{position:relative;display:flex;gap:24px;padding-bottom:36px}
.step:last-child{padding-bottom:0}
.step-no{
  position:relative;z-index:1;flex:0 0 40px;width:40px;height:40px;
  border-radius:14px;background:var(--ink);color:var(--accent);
  display:grid;place-items:center;
  font-family:var(--font-num);font-size:13px;font-weight:700;letter-spacing:.04em;
}
.step-title{font-size:17px;font-weight:700;line-height:1.5}
.step-text{margin-top:8px;font-size:15px;line-height:1.85;color:var(--muted);max-width:640px}

/* ---------- 支持横条 ---------- */
.support-banner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:24px;padding:36px 32px;
  background:var(--tint);border:1px solid rgba(14,124,97,.16);
  border-radius:22px;
}
.support-banner .h3{font-size:22px}
.support-banner p{margin-top:10px;font-size:15px;line-height:1.8;color:#3f4c47;max-width:600px}
@media (max-width:640px){.support-banner{padding:28px 22px}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#F5F6F3;padding:72px 0 32px;margin-top:8px}
.site-footer ul{list-style:none}
.footer-title{
  font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;
  color:rgba(245,246,243,.5);margin-bottom:16px;font-weight:600;
}
.footer-link{
  display:inline-block;padding:6px 0;font-size:14.5px;
  color:rgba(245,246,243,.78);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-link:hover{color:var(--accent);transform:translateX(3px)}
.footer-bottom{
  margin-top:56px;padding-top:22px;
  border-top:1px solid rgba(245,246,243,.12);
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
  font-size:13px;color:rgba(245,246,243,.5);
}

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}