/* roulang page: index */
:root{
  --ink:#0E1116;
  --ink-2:#1B2028;
  --accent:#16E0A3;
  --accent-ink:#052B21;
  --warn:#FF6A3D;
  --paper:#F5F5F2;
  --card:#FFFFFF;
  --line:#E3E5E0;
  --line-dark:rgba(255,255,255,.12);
  --text:#14181D;
  --text-2:#5B6470;
  --text-3:#8C939C;
  --danger:#E5484D;
  --r-btn:10px;
  --r-card:16px;
  --r-img:12px;
  --sh-hover:0 18px 40px rgba(14,17,22,.08);
  --sh-pop:0 24px 60px rgba(14,17,22,.18);
  --font-title:"Inter Tight","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
::selection{background:var(--accent);color:var(--accent-ink)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.container-narrow{max-width:760px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 24px;border:1px solid transparent;
  border-radius:var(--r-btn);
  font-family:var(--font-title);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  cursor:pointer;transition:transform .22s cubic-bezier(.22,.61,.36,1),background .22s,color .22s,box-shadow .22s,border-color .22s;
  white-space:nowrap;
}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--accent);color:var(--accent-ink);box-shadow:0 6px 18px rgba(22,224,163,.24)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.04);box-shadow:0 14px 30px rgba(22,224,163,.3)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--ink);border-color:transparent}
.btn-light:hover{transform:translateY(-2px);box-shadow:var(--sh-hover)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.btn-outline-light:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
.btn-sm{height:42px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--ink);
  position:relative;padding-bottom:2px;
}
.link-arrow::after{
  content:"";position:absolute;left:0;bottom:0;height:1.5px;width:100%;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .28s cubic-bezier(.22,.61,.36,1);
}
.link-arrow:hover::after{transform:scaleX(1)}
.link-arrow:hover{color:var(--accent-ink)}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  transition:height .25s ease,background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  box-shadow:0 6px 24px rgba(14,17,22,.06);
}
.nav-wrap{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:20px;
  height:72px;transition:height .25s ease;
}
.site-header.is-scrolled .nav-wrap{height:60px}
.nav-side{display:flex;align-items:center;gap:14px}
.nav-left{justify-self:start}
.nav-right{justify-self:end}
.nav-link{
  font-size:15px;font-weight:500;color:var(--text-2);
  padding:6px 2px;border-bottom:2px solid transparent;
  transition:color .2s,border-color .2s;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text)}
.nav-link.is-active{color:var(--text);border-bottom-color:var(--accent)}
.nav-dot{width:4px;height:4px;border-radius:50%;background:var(--line);flex:none}
.brand{display:inline-flex;align-items:center;gap:10px;justify-self:center;min-width:0}
.brand-mark{
  width:22px;height:22px;flex:none;border-radius:7px;
  background:linear-gradient(135deg,var(--accent) 0%,var(--accent) 45%,var(--ink) 45%,var(--ink) 100%);
  box-shadow:0 4px 12px rgba(22,224,163,.28);
}
.brand-text{
  font-family:var(--font-title);font-size:17px;font-weight:700;letter-spacing:-.01em;
  color:var(--ink);white-space:nowrap;
}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:#fff;cursor:pointer;flex-direction:column;gap:5px;padding:0;
}
.nav-toggle span{display:block;width:18px;height:1.8px;background:var(--ink);border-radius:2px}
.nav-toggle:hover{border-color:var(--ink)}

/* ---------- 抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:90;pointer-events:none}
.drawer.is-open{pointer-events:auto}
.drawer-mask{
  position:absolute;inset:0;background:rgba(14,17,22,.5);
  opacity:0;transition:opacity .3s ease;
}
.drawer.is-open .drawer-mask{opacity:1}
.drawer-panel{
  position:absolute;top:0;left:0;bottom:0;width:84vw;max-width:360px;
  background:var(--ink);color:#fff;display:flex;flex-direction:column;
  padding:24px 24px 28px;transform:translateX(-100%);
  transition:transform .34s cubic-bezier(.22,.61,.36,1);
  overflow-y:auto;
}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:20px;border-bottom:1px solid var(--line-dark)}
.drawer-head .brand-text{color:#fff;font-size:15px;white-space:normal;line-height:1.35}
.drawer-close{
  width:40px;height:40px;flex:none;border-radius:10px;border:1px solid var(--line-dark);
  background:transparent;color:#fff;font-size:22px;line-height:1;cursor:pointer;
}
.drawer-close:hover{border-color:var(--accent);color:var(--accent)}
.drawer-nav{display:flex;flex-direction:column;gap:20px;padding:28px 0;flex:1}
.drawer-nav a{font-family:var(--font-title);font-size:18px;font-weight:600;color:#fff}
.drawer-nav a:hover{color:var(--accent)}
.drawer-nav a.is-active{color:var(--accent)}
.drawer-foot{border-top:1px solid var(--line-dark);padding-top:20px}
.drawer-foot p{font-size:13px;color:rgba(255,255,255,.6);margin-bottom:16px}

/* ---------- Hero ---------- */
.hero{background:var(--card);padding:72px 0 88px;border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--accent-ink);
  background:rgba(22,224,163,.12);border-radius:999px;padding:6px 14px;margin-bottom:22px;
}
.hero-eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:block}
.hero-title{
  font-family:var(--font-title);
  font-size:clamp(34px,5.2vw,64px);font-weight:800;line-height:1.08;letter-spacing:-.02em;
  color:var(--ink);max-width:15em;
}
.hero-sub{
  margin-top:20px;font-size:17px;line-height:1.85;color:var(--text-2);max-width:32em;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.trust{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  margin-top:44px;padding-top:28px;border-top:1px solid var(--line);
}
.trust-num{
  font-family:var(--font-title);font-size:26px;font-weight:800;line-height:1.2;
  color:var(--warn);letter-spacing:-.02em;
}
.trust-label{font-size:13px;color:var(--text-2);margin-top:4px;line-height:1.6}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-card);background:var(--paper);
}
.hero-badge{
  position:absolute;right:-14px;bottom:22px;
  background:#fff;border-radius:14px;padding:14px 18px;
  box-shadow:var(--sh-pop);display:flex;align-items:center;gap:10px;
  max-width:250px;
}
.hero-badge-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);flex:none;box-shadow:0 0 0 4px rgba(22,224,163,.16)}
.hero-badge-text{font-size:13px;font-weight:600;color:var(--ink);line-height:1.5}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-white{background:var(--card)}
.section-paper{background:var(--paper)}
.section-dark{background:var(--ink);color:#fff}
.section-head{max-width:640px;margin-bottom:52px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-tag{
  font-size:13px;font-weight:600;color:var(--accent-ink);
  background:rgba(22,224,163,.14);border-radius:999px;padding:5px 12px;display:inline-block;margin-bottom:16px;
}
.section-title{
  font-family:var(--font-title);font-size:clamp(26px,3.2vw,40px);font-weight:700;
  line-height:1.2;letter-spacing:-.01em;color:var(--ink);
}
.section-desc{margin-top:16px;font-size:16px;color:var(--text-2);line-height:1.85}
.section-dark .section-title{color:#fff}
.section-dark .section-desc{color:rgba(255,255,255,.72)}

/* ---------- 特性卡 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;transition:transform .28s cubic-bezier(.22,.61,.36,1),box-shadow .28s,border-color .28s;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(14,17,22,.2)}
.feature-icon{
  width:40px;height:40px;border-radius:12px;background:var(--paper);
  display:flex;align-items:center;justify-content:center;margin-bottom:20px;
}
.feature-icon svg{width:20px;height:20px;stroke:var(--accent-ink);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.feature-title{font-family:var(--font-title);font-size:20px;font-weight:600;line-height:1.4;color:var(--ink)}
.feature-text{margin-top:10px;font-size:15px;line-height:1.8;color:var(--text-2)}
.feature-link{display:inline-block;margin-top:16px;font-size:14px;font-weight:600;color:var(--accent-ink);border-bottom:1px solid rgba(22,224,163,.5)}

/* ---------- 三步 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:36px;position:relative}
.step{position:relative;padding-top:8px}
.step:nth-child(2){transform:translateY(32px)}
.step-num{
  font-family:var(--font-title);font-size:clamp(48px,6vw,88px);font-weight:800;
  line-height:.9;color:rgba(22,224,163,.3);letter-spacing:-.03em;
}
.step-title{
  font-family:var(--font-title);font-size:22px;font-weight:600;color:var(--ink);
  margin-top:-10px;line-height:1.4;
}
.step-text{margin-top:12px;font-size:15px;line-height:1.85;color:var(--text-2)}
.step-line{
  position:absolute;top:56px;right:-18px;width:36px;height:1px;
  border-top:1px dashed var(--line);
}
.step:nth-child(3) .step-line{display:none}
.step .link-arrow{margin-top:18px}

/* ---------- 案例 ---------- */
.cases{display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:start}
.case-main{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:transform .28s cubic-bezier(.22,.61,.36,1),box-shadow .28s;
}
.case-main:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.case-media img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--paper)}
.case-body{padding:28px}
.case-title{font-family:var(--font-title);font-size:24px;font-weight:600;color:var(--ink);line-height:1.4}
.case-text{margin-top:12px;font-size:15px;line-height:1.85;color:var(--text-2)}
.case-metric{
  margin-top:24px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;align-items:baseline;gap:12px;
}
.case-metric-num{font-family:var(--font-title);font-size:32px;font-weight:800;color:var(--ink);letter-spacing:-.02em}
.case-metric-label{font-size:13px;color:var(--text-3)}
.case-side{display:flex;flex-direction:column;gap:28px}
.case-quote{border-left:3px solid var(--accent);padding-left:20px}
.case-quote strong{display:block;font-family:var(--font-title);font-size:17px;font-weight:600;color:var(--ink);line-height:1.6}
.case-quote span{display:block;margin-top:8px;font-size:14px;line-height:1.8;color:var(--text-2)}
.case-quote small{display:block;margin-top:10px;font-size:13px;color:var(--text-3)}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-aside{position:sticky;top:96px}
.faq-aside .section-head{margin-bottom:20px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:20px;padding:24px 0;min-height:72px;
  font-family:var(--font-title);font-size:18px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";flex:none;width:14px;height:14px;position:relative;
  background:
    linear-gradient(var(--ink),var(--ink)) center/14px 1.6px no-repeat,
    linear-gradient(var(--ink),var(--ink)) center/1.6px 14px no-repeat;
  transition:transform .3s cubic-bezier(.22,.61,.36,1);
}
.faq-item[open] summary::after{
  background:linear-gradient(var(--ink),var(--ink)) center/14px 1.6px no-repeat;
  transform:rotate(180deg);
}
.faq-answer{padding:0 0 24px;font-size:16px;line-height:1.9;color:var(--text-2);max-width:60em}
.faq-answer p+p{margin-top:12px}

/* ---------- 最新信息 ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:44px}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  transition:transform .28s cubic-bezier(.22,.61,.36,1),box-shadow .28s,border-color .28s;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(14,17,22,.2)}
.news-thumb{display:block;background:var(--paper)}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover}
.news-body{display:block;padding:22px 24px 24px}
.badge{
  display:inline-block;font-size:12px;font-weight:600;line-height:1;
  padding:6px 10px;border-radius:999px;
  background:rgba(22,224,163,.12);color:var(--accent-ink);
}
.badge-warn{background:rgba(255,106,61,.14);color:#A8350F}
.news-title{
  margin-top:14px;font-family:var(--font-title);font-size:19px;font-weight:600;
  line-height:1.5;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-sum{
  margin-top:10px;font-size:14px;line-height:1.8;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  display:flex;align-items:center;gap:8px;margin-top:18px;padding-top:16px;
  border-top:1px solid var(--line);font-size:13px;color:var(--text-3);
}
.news-meta i{width:1px;height:12px;background:var(--line);display:block}
.news-more{display:flex;justify-content:center;margin-top:44px}
.empty-state{
  grid-column:1/-1;min-height:240px;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:16px;text-align:center;
  border:1px dashed var(--line);border-radius:var(--r-card);background:var(--card);padding:40px 24px;
}
.empty-state svg{width:34px;height:34px;stroke:var(--text-3);fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.empty-state p{font-size:15px;color:var(--text-2)}

/* ---------- CTA ---------- */
.cta-block{background:var(--ink);color:#fff;padding:88px 0}
.cta-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.cta-title{
  font-family:var(--font-title);font-size:clamp(30px,4vw,48px);font-weight:800;
  line-height:1.14;letter-spacing:-.02em;color:#fff;
}
.cta-text{margin-top:20px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.72);max-width:34em}
.cta-panel{
  border:1px solid var(--line-dark);border-radius:var(--r-card);padding:28px;
  background:rgba(255,255,255,.03);
}
.cta-panel-title{font-family:var(--font-title);font-size:17px;font-weight:600;color:#fff}
.cta-panel-list{margin-top:18px;display:flex;flex-direction:column;gap:14px}
.cta-panel-list li{
  display:flex;gap:10px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.72);
}
.cta-panel-list li::before{
  content:"";flex:none;width:6px;height:6px;border-radius:50%;background:var(--accent);margin-top:9px;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.cta-note{margin-top:18px;font-size:13px;color:rgba(255,255,255,.5);line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#fff;padding:72px 0 0;border-top:1px solid var(--line-dark)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:56px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-text{color:#fff}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:26em}
.footer-title{
  font-family:var(--font-title);font-size:14px;font-weight:600;color:#fff;
  letter-spacing:.02em;margin-bottom:18px;
}
.footer-link{
  display:block;font-size:14px;color:rgba(255,255,255,.68);
  padding:5px 0;transition:color .2s,transform .2s;
}
.footer-link:hover{color:var(--accent);transform:translateX(2px)}
.footer-bottom{
  border-top:1px solid var(--line-dark);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}
.back-top{color:rgba(255,255,255,.68);font-weight:600}
.back-top:hover{color:var(--accent)}

/* ---------- 入场动效 ---------- */
.js .reveal{opacity:0;transform:translateY(16px)}
.js .reveal.is-in{
  opacity:1;transform:translateY(0);
  transition:opacity .5s cubic-bezier(.22,.61,.36,1),transform .5s cubic-bezier(.22,.61,.36,1);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .hero-grid{gap:40px}
}
@media (max-width:1023px){
  .nav-left,.nav-right .nav-link{display:none}
  .nav-wrap{grid-template-columns:auto 1fr auto;height:64px}
  .site-header.is-scrolled .nav-wrap{height:60px}
  .nav-toggle{display:flex;justify-self:start}
  .brand{justify-self:center}
  .nav-right{justify-self:end}
  .hero{padding:56px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{order:-1}
  .hero-media img{aspect-ratio:16/9;max-height:280px}
  .hero-badge{right:12px;bottom:12px;max-width:220px;padding:12px 14px}
  .section{padding:64px 0}
  .steps{grid-template-columns:1fr;gap:40px}
  .step:nth-child(2){transform:none}
  .step-line{display:none}
  .cases{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .faq-aside{position:static}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .cta-block{padding:64px 0}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
}
@media (max-width:767px){
  .container{padding:0 24px}
  .trust{grid-template-columns:repeat(2,1fr);gap:22px}
  .feature-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .section{padding:48px 0}
  .hero{padding:40px 0 48px}
  .hero-actions .btn{flex:1 1 auto}
}
@media (max-width:479px){
  .container{padding:0 20px}
  .brand-text{font-size:14px}
  .hero-title{font-size:clamp(28px,8vw,36px)}
  .hero-badge{position:static;margin-top:14px;max-width:none;box-shadow:var(--sh-hover)}
  .case-metric{flex-direction:column;gap:4px}
  .cta-actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
  .js .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --ink:#0E1116;
  --ink-2:#1B2028;
  --accent:#16E0A3;
  --accent-ink:#052B21;
  --warn:#FF6A3D;
  --paper:#F5F5F2;
  --card:#FFFFFF;
  --line:#E3E5E0;
  --line-dark:rgba(255,255,255,.12);
  --text:#14181D;
  --text-2:#5B6470;
  --text-3:#8C939C;
  --error:#E5484D;
  --radius-btn:10px;
  --radius-card:16px;
  --radius-img:12px;
  --shadow-hover:0 18px 40px rgba(14,17,22,.08);
  --shadow-float:0 24px 60px rgba(14,17,22,.18);
  --font-title:"Inter Tight","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--font-title);margin:0;color:var(--text)}
p{margin:0}
ul,ol{margin:0;padding:0}
button{font-family:inherit;cursor:pointer;border:0;background:none}
input,textarea{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.container-wide{max-width:1360px}
.container-narrow{max-width:760px;margin:0 auto;padding:0 32px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(245,245,242,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:padding .28s var(--ease),background .28s var(--ease);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  height:84px;
  transition:height .28s var(--ease);
}
.site-header.is-scrolled .header-inner{height:70px}
.nav-side{display:flex;align-items:center;gap:18px;flex:1 1 0}
.nav-right{justify-content:flex-end}
.nav-link{
  position:relative;
  font-size:15px;font-weight:500;color:var(--text-2);
  padding:6px 2px;
  transition:color .24s var(--ease);
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .28s var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--text)}
.nav-dot{width:4px;height:4px;border-radius:50%;background:var(--line);flex:0 0 auto}
.brand{
  display:flex;align-items:center;gap:10px;
  flex:0 0 auto;
  padding:6px 4px;
}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--accent),#0FA97B);
  position:relative;flex:0 0 auto;
}
.brand-mark::after{
  content:"";position:absolute;inset:11px;border-radius:3px;
  background:var(--accent-ink);
}
.brand-text{
  font-family:var(--font-title);
  font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--text);
  white-space:nowrap;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease),color .24s var(--ease),filter .24s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:var(--accent-ink)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.04);box-shadow:0 12px 26px rgba(22,224,163,.28)}
.btn-ghost{border:1px solid var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-sm{height:42px;padding:0 18px;font-size:14px}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--accent-ink);
  border-bottom:1px solid rgba(5,43,33,.35);
  padding-bottom:2px;
  transition:border-color .28s var(--ease),color .28s var(--ease);
}
.btn-text:hover{border-color:var(--accent-ink)}
.btn:disabled{background:var(--line);color:var(--text-3);box-shadow:none;transform:none;cursor:not-allowed}
.menu-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border-radius:10px;border:1px solid var(--line);background:#fff;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}

/* Drawer */
.drawer{
  position:fixed;inset:0 auto 0 0;width:84vw;max-width:360px;
  background:var(--ink);color:#fff;z-index:90;
  transform:translateX(-102%);
  transition:transform .34s var(--ease);
  display:flex;flex-direction:column;
  padding:24px 24px 32px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}
.drawer-head .brand-text{color:#fff}
.drawer-close{width:44px;height:44px;border-radius:10px;color:#fff;font-size:20px;border:1px solid var(--line-dark)}
.drawer-nav{display:flex;flex-direction:column;gap:20px;font-size:18px;font-weight:600}
.drawer-nav a{color:#fff;transition:color .24s var(--ease)}
.drawer-nav a:hover{color:var(--accent)}
.drawer-foot{margin-top:auto;padding-top:24px;border-top:1px solid var(--line-dark);display:flex;flex-direction:column;gap:14px}
.drawer-foot p{font-size:13px;color:rgba(255,255,255,.6);line-height:1.7}
.scrim{
  position:fixed;inset:0;background:rgba(14,17,22,.5);
  opacity:0;pointer-events:none;transition:opacity .3s var(--ease);z-index:80;
}
.scrim.is-open{opacity:1;pointer-events:auto}
body.no-scroll{overflow:hidden}

/* ===== Breadcrumb ===== */
.crumb-bar{padding:22px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-2)}
.breadcrumb a{transition:color .24s var(--ease)}
.breadcrumb a:hover{color:var(--accent-ink)}
.breadcrumb .sep{color:var(--text-3)}
.breadcrumb .current{color:var(--text);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ===== Article hero ===== */
.article-hero{margin-top:22px;background:var(--ink);color:#fff;padding:56px 0 52px}
.article-hero .badge{margin-bottom:20px}
.article-title{
  font-size:clamp(28px,3.6vw,44px);
  font-weight:800;line-height:1.2;letter-spacing:-.02em;color:#fff;
  max-width:22ch;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:24px;font-size:13px;color:rgba(255,255,255,.6);
}
.meta-sep{width:1px;height:12px;background:var(--line-dark)}
.article-hero-rule{height:1px;background:var(--line-dark);margin-top:36px}

.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.04em;
}
.badge-accent{background:rgba(22,224,163,.12);color:var(--accent-ink)}
.article-hero .badge-accent{background:rgba(22,224,163,.16);color:var(--accent)}
.badge-warn{background:rgba(255,106,61,.12);color:#B33A16}

/* ===== Article body ===== */
.article-main{padding-bottom:96px}
.article-body{padding-top:48px;font-size:17px;line-height:1.95;color:var(--text)}
.article-body > *:first-child{margin-top:0}
.article-body h2{
  font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.3;letter-spacing:-.01em;
  margin:48px 0 16px;
}
.article-body h3{font-size:21px;font-weight:600;line-height:1.4;margin:32px 0 14px}
.article-body h4{font-size:18px;font-weight:600;margin:24px 0 12px}
.article-body p{margin:0 0 1.2em;color:var(--text)}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:22px}
.article-body li{margin-bottom:10px;line-height:1.9}
.article-body ul li::marker{color:var(--accent)}
.article-body ol li::marker{color:var(--accent);font-weight:600}
.article-body blockquote{
  margin:28px 0;padding:20px 24px;
  border-left:3px solid var(--accent);
  background:var(--paper);
  border-radius:0 12px 12px 0;
  color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{margin:28px 0;border-radius:16px}
.article-body a{
  color:var(--accent-ink);
  text-decoration:underline;
  text-decoration-color:rgba(22,224,163,.65);
  text-decoration-thickness:2px;
  text-underline-offset:4px;
  transition:text-decoration-color .24s var(--ease);
}
.article-body a:hover{text-decoration-color:var(--accent)}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:13px;background:var(--paper);border:1px solid var(--line);
  padding:2px 6px;border-radius:6px;
}
.article-body pre{
  background:var(--paper);border:1px solid var(--line);border-radius:12px;
  padding:18px;overflow-x:auto;font-size:13px;line-height:1.7;
}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left}
.article-body th{background:var(--paper);font-weight:600}
.article-body hr{border:0;border-top:1px solid var(--line);margin:40px 0}

.article-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
  margin-top:56px;padding-top:24px;border-top:1px solid var(--line);
}
.share{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-3)}
.share-btn{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;color:var(--text-2);
  transition:border-color .24s var(--ease),color .24s var(--ease),transform .24s var(--ease);
}
.share-btn:hover{border-color:var(--ink);color:var(--ink);transform:translateY(-2px)}

/* Empty state */
.empty-state{
  min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;border:1px dashed var(--line);border-radius:var(--radius-card);
  background:#fff;padding:40px 24px;
}
.empty-state svg{color:var(--text-3)}
.empty-state p{color:var(--text-2);font-size:15px}

/* ===== Related ===== */
.section{padding:96px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:40px}
.section-title{font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.2;letter-spacing:-.01em}
.section-sub{margin-top:12px;font-size:15px;color:var(--text-2);max-width:60ch}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:0;overflow:hidden;display:flex;flex-direction:column;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(14,17,22,.2)}
.card-media{aspect-ratio:16/9;background:var(--paper);overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;border-radius:0}
.card-body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-title{font-size:20px;font-weight:600;line-height:1.4}
.card-text{font-size:15px;line-height:1.8;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3)}

/* ===== CTA ===== */
.cta-strip{padding:0 0 96px}
.cta-inner{
  background:var(--ink);color:#fff;border-radius:16px;
  padding:56px;display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center;
}
.cta-inner h2{font-size:clamp(26px,3.4vw,40px);font-weight:800;line-height:1.18;color:#fff;letter-spacing:-.02em}
.cta-inner p{margin-top:16px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.72);max-width:56ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

/* ===== Footer ===== */
.site-footer{background:var(--ink);color:#fff;padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68)}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:18px}
.footer-link{
  display:block;font-size:14px;color:rgba(255,255,255,.68);
  padding:6px 0;transition:color .24s var(--ease),transform .24s var(--ease);
}
.footer-link:hover{color:var(--accent);transform:translateX(2px)}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid var(--line-dark);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13px;color:rgba(255,255,255,.55);
}
.back-top{color:rgba(255,255,255,.68);transition:color .24s var(--ease)}
.back-top:hover{color:var(--accent)}

/* ===== Reveal ===== */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ===== Responsive ===== */
@media (max-width:1279px){
  .container{padding:0 24px}
  .container-narrow{padding:0 24px}
}
@media (max-width:1023px){
  .nav-left,.nav-right .nav-link,.nav-right .nav-dot{display:none}
  .nav-side{flex:1 1 auto}
  .nav-right{justify-content:flex-end;flex:0 0 auto}
  .menu-toggle{display:inline-flex}
  .header-inner{height:72px;gap:12px}
  .brand{position:absolute;left:50%;transform:translateX(-50%)}
  .site-header .header-inner{position:relative}
  .section{padding:64px 0}
  .cta-inner{grid-template-columns:1fr;padding:40px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 20px}
  .container-narrow{padding:0 20px}
  .brand-text{font-size:15px}
  .article-hero{padding:40px 0 36px;margin-top:16px}
  .article-hero-rule{margin-top:26px}
  .article-title{max-width:none}
  .article-body{padding-top:32px;font-size:17px;line-height:1.9}
  .article-body h2{margin-top:40px}
  .section{padding:48px 0}
  .card-grid{grid-template-columns:1fr}
  .cta-strip{padding-bottom:64px}
  .cta-inner{padding:32px 22px;border-radius:12px}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding-top:52px}
  .footer-bottom{margin-top:36px}
}
@media (max-width:479px){
  .brand-text{font-size:13.5px;white-space:normal;line-height:1.25;max-width:7.5em}
  .btn-sm{height:40px;padding:0 14px;font-size:13px}
  .breadcrumb .current{max-width:22ch}
}

/* roulang page: category1 */
:root{
  --ink:#0E1116;
  --ink-2:#1B2028;
  --accent:#16E0A3;
  --accent-ink:#052B21;
  --warn:#FF6A3D;
  --paper:#F5F5F2;
  --card:#FFFFFF;
  --line:#E3E5E0;
  --text:#14181D;
  --text-2:#5B6470;
  --text-3:#8C939C;
  --danger:#E5484D;
  --r-btn:10px;
  --r-card:16px;
  --r-img:12px;
  --shadow-hover:0 18px 40px rgba(14,17,22,.08);
  --shadow-float:0 24px 60px rgba(14,17,22,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1200px;
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
body.drawer-open{overflow:hidden}
h1,h2,h3,h4{
  font-family:"Inter Tight","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  margin:0;
  color:var(--text);
  letter-spacing:-.01em;
}
p{margin:0}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:var(--sec) 0}
.section-white{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{margin-bottom:40px}
.section-head .badge{margin-bottom:16px}
.section-title{font-size:clamp(26px,3.2vw,40px);font-weight:700;line-height:1.2;letter-spacing:-.015em}
.section-sub{margin-top:14px;font-size:16px;color:var(--text-2);max-width:68ch}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.02em;line-height:1;
}
.badge-accent{background:rgba(22,224,163,.14);color:var(--accent-ink)}
.badge-warn{background:rgba(255,106,61,.13);color:#A83812}
.badge-on-dark{background:rgba(22,224,163,.18);color:#D6FBEF}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),filter .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:var(--accent-ink)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(22,224,163,.32);filter:brightness(1.04)}
.btn-ghost{border-color:var(--ink);background:transparent;color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-sm{height:42px;padding:0 18px;font-size:14px}
.btn:active{transform:translateY(0)}
.btn:disabled{background:var(--line);color:var(--text-3);border-color:transparent;box-shadow:none;cursor:not-allowed}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(245,245,242,.9);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:background .28s var(--ease);
}
.site-header.is-scrolled{background:rgba(255,255,255,.94)}
.header-inner{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;
  height:72px;transition:height .28s var(--ease);
}
.site-header.is-scrolled .header-inner{height:60px}
.nav-side{display:flex;align-items:center;gap:18px}
.nav-left{justify-content:flex-start}
.nav-right{justify-content:flex-end}
.nav-link{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 0;
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:1.5px;
  background:var(--line);transform:scaleX(0);transform-origin:left;
  transition:transform .28s var(--ease),background .28s var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--text)}
.nav-link.is-active::after{transform:scaleX(1);background:var(--accent);height:2px}
.nav-dot{width:4px;height:4px;border-radius:50%;background:var(--line);flex:none}
.nav-right .nav-link{margin-right:2px}

/* 品牌 */
.brand{display:inline-flex;align-items:center;gap:10px;justify-self:center}
.brand-mark{position:relative;width:26px;height:26px;border-radius:8px;background:var(--ink);flex:none}
.brand-mark::after{content:"";position:absolute;inset:7px;border-radius:3px;background:var(--accent)}
.brand-text{
  display:flex;flex-direction:column;
  font-family:"Inter Tight","HarmonyOS Sans SC","PingFang SC",sans-serif;
  font-size:14px;font-weight:700;line-height:1.15;letter-spacing:.02em;color:var(--ink);
}
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  background:transparent;border:0;border-radius:10px;cursor:pointer;
}
.nav-toggle span{display:block;width:20px;height:1.5px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:20px;height:1.5px;background:var(--ink);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-icon-btn{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border-radius:50%;background:var(--accent);color:var(--accent-ink);
}
.nav-icon-btn svg{width:18px;height:18px}

/* 抽屉 */
.drawer{position:fixed;inset:0;z-index:120;pointer-events:none}
.drawer-mask{
  position:absolute;inset:0;background:rgba(14,17,22,.5);opacity:0;
  transition:opacity .3s var(--ease);
}
.drawer-panel{
  position:absolute;top:0;left:0;bottom:0;width:84vw;max-width:360px;
  background:var(--ink);color:#fff;padding:24px;
  display:flex;flex-direction:column;gap:24px;
  transform:translateX(-100%);transition:transform .34s var(--ease);
}
.drawer.is-open{pointer-events:auto}
.drawer.is-open .drawer-mask{opacity:1}
.drawer.is-open .drawer-panel{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{
  width:44px;height:44px;border-radius:10px;border:1px solid rgba(255,255,255,.2);
  background:transparent;color:#fff;cursor:pointer;font-size:18px;line-height:1;
}
.drawer-nav{display:flex;flex-direction:column;gap:20px}
.drawer-link{font-size:18px;font-weight:600;color:rgba(255,255,255,.92);transition:color .2s var(--ease)}
.drawer-link:hover{color:var(--accent)}
.drawer-link.is-active{color:var(--accent)}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:14px}
.drawer-foot p{font-size:13px;color:rgba(255,255,255,.55);line-height:1.7}
.drawer-foot .btn{width:100%}

/* 页面横幅 */
.page-banner{position:relative;height:260px;background:var(--ink-2);overflow:hidden}
.banner-bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.02)}
.banner-veil{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(14,17,22,.88),rgba(14,17,22,.6) 62%,rgba(14,17,22,.42));
}
.banner-inner{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:center;gap:16px}
.banner-inner h1{
  color:#fff;font-size:clamp(28px,4vw,46px);font-weight:800;line-height:1.12;letter-spacing:-.02em;
  max-width:22ch;
}
.banner-inner p{color:rgba(255,255,255,.78);font-size:16px;max-width:52ch;line-height:1.8}

/* 面包屑 */
.crumb-bar{background:var(--card);border-bottom:1px solid var(--line)}
.breadcrumb{display:flex;align-items:center;gap:8px;padding:14px 0;font-size:13px;color:var(--text-2)}
.breadcrumb a{transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--accent-ink)}
.breadcrumb .sep{color:var(--text-3)}
.breadcrumb .current{color:var(--text)}

/* 核对数据卡 */
.check-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.check-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px 28px;
  transition:border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.check-card:hover{border-color:rgba(14,17,22,.22);transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.check-num{
  font-family:"Inter Tight","HarmonyOS Sans SC",sans-serif;
  font-size:34px;font-weight:800;line-height:1;color:rgba(22,224,163,.4);
  letter-spacing:-.02em;margin-bottom:16px;
}
.check-card h3{font-size:18px;font-weight:600;margin-bottom:10px}
.check-card p{font-size:14px;line-height:1.8;color:var(--text-2)}

/* 双栏指引 */
.guide-layout{display:grid;grid-template-columns:minmax(190px,3fr) minmax(0,9fr);gap:24px}
.anchor-nav{position:sticky;top:96px;align-self:start}
.anchor-title{
  font-size:13px;font-weight:600;color:var(--text-3);letter-spacing:.08em;
  text-transform:uppercase;padding-left:16px;margin-bottom:14px;
}
.anchor-nav a{
  display:block;padding:10px 16px;margin-left:-1px;
  font-size:14px;color:var(--text-2);
  border-left:2px solid var(--line);
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.anchor-nav a:hover{color:var(--text)}
.anchor-nav a.is-current{color:var(--text);border-left-color:var(--accent)}

.step-block{
  padding-bottom:40px;margin-bottom:40px;border-bottom:1px solid var(--line);
  scroll-margin-top:96px;
}
.step-block:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}
.step-head{display:flex;align-items:center;gap:14px;margin-bottom:16px}
.step-num{
  width:40px;height:40px;border-radius:50%;flex:none;
  background:var(--accent);color:var(--accent-ink);
  display:grid;place-items:center;font-size:14px;font-weight:700;
}
.step-head h3{font-size:20px;font-weight:600}
.step-block>p{font-size:16px;color:var(--text-2);line-height:1.9;max-width:70ch}
.tick-list{margin-top:18px;display:grid;gap:12px}
.tick-list li{
  position:relative;padding-left:18px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:70ch;
}
.tick-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--accent);
}

/* 场景卡片 */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  transition:border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.case-card:hover{border-color:rgba(14,17,22,.22);transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.case-thumb{aspect-ratio:16/9;background:var(--paper);overflow:hidden}
.case-thumb img{width:100%;height:100%;object-fit:cover}
.case-body{padding:24px 26px 28px;display:flex;flex-direction:column;gap:12px;flex:1}
.case-body h3{font-size:20px;font-weight:600;line-height:1.4}
.case-body p{font-size:15px;line-height:1.8;color:var(--text-2)}
.case-meta{margin-top:auto;padding-top:14px;font-size:13px;color:var(--text-3)}

/* FAQ */
.faq-wrap{max-width:860px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  width:100%;min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 0;background:transparent;border:0;text-align:left;cursor:pointer;
  font-size:18px;font-weight:600;color:var(--text);line-height:1.5;
}
.faq-q:hover{color:var(--accent-ink)}
.faq-icon{position:relative;width:16px;height:16px;flex:none}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--text);transition:transform .3s var(--ease),opacity .3s var(--ease);
}
.faq-icon::before{left:0;right:0;top:7px;height:1.5px}
.faq-icon::after{top:0;bottom:0;left:7px;width:1.5px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .32s var(--ease)}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden}
.faq-a p{
  margin:0 0 24px;font-size:16px;line-height:1.9;color:var(--text-2);max-width:74ch;
}

/* 窄 CTA 条 */
.cta-strip{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 32px;display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.cta-strip h2{font-size:22px;font-weight:700;margin-bottom:8px}
.cta-strip p{font-size:15px;color:var(--text-2);max-width:56ch}
.cta-actions{display:flex;gap:12px;flex:none}

/* 页脚 */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.site-footer .brand-mark{background:rgba(255,255,255,.12)}
.site-footer .brand-text{color:#fff;font-size:15px;flex-direction:row;letter-spacing:.01em}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:38ch}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-link{
  display:block;font-size:14px;color:rgba(255,255,255,.68);padding:6px 0;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-link:hover{color:var(--accent);transform:translateX(2px)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  margin-top:44px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(255,255,255,.5);
}
.back-top{color:rgba(255,255,255,.68);transition:color .2s var(--ease)}
.back-top:hover{color:var(--accent)}

/* 入场动效 */
html.js .reveal{opacity:0;transform:translateY(16px)}
.reveal{transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  html.js .reveal{opacity:1;transform:none}
  .reveal,.btn,.nav-link::after,.faq-a,.drawer-panel,.drawer-mask{transition:none !important}
}

/* 断点 */
@media (max-width:1279px){
  :root{--container:1120px}
}
@media (max-width:1023px){
  :root{--sec:64px}
  .container{padding:0 24px}
  .header-inner{grid-template-columns:44px 1fr 44px;gap:8px}
  .nav-side{display:none}
  .nav-toggle{display:inline-flex}
  .nav-icon-btn{display:inline-flex;justify-self:end}
  .brand-text{font-size:13px}
  .brand{justify-self:center}
  .page-banner{height:220px}
  .guide-layout{grid-template-columns:1fr;gap:32px}
  .anchor-nav{
    position:sticky;top:72px;display:flex;gap:8px;overflow-x:auto;
    padding:12px 0;background:var(--card);z-index:20;
    scrollbar-width:none;
  }
  .anchor-nav::-webkit-scrollbar{display:none}
  .anchor-title{display:none}
  .anchor-nav a{
    border-left:0;border-radius:999px;background:var(--paper);padding:8px 14px;
    margin-left:0;white-space:nowrap;font-size:13px;
  }
  .anchor-nav a.is-current{background:rgba(22,224,163,.18);color:var(--accent-ink)}
  .check-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .case-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--sec:48px}
  .container{padding:0 20px}
  .page-banner{height:180px}
  .banner-inner p{font-size:14px}
  .section-head{margin-bottom:28px}
  .check-grid{grid-template-columns:1fr;gap:16px}
  .case-grid{grid-template-columns:1fr;gap:16px}
  .step-head h3{font-size:18px}
  .cta-strip{flex-direction:column;align-items:stretch;padding:24px 20px;gap:20px}
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .faq-q{font-size:16px;min-height:64px}
}
@media (max-width:479px){
  .brand-text{font-size:12px}
  .banner-inner h1{font-size:26px}
  .check-card{padding:22px 20px}
  .case-body{padding:20px 20px 24px}
}

/* roulang page: category2 */
:root{
  --ink:#0E1116;
  --ink-2:#1B2028;
  --accent:#16E0A3;
  --accent-ink:#052B21;
  --warn:#FF6A3D;
  --paper:#F5F5F2;
  --card:#FFFFFF;
  --line:#E3E5E0;
  --line-dark:rgba(255,255,255,.12);
  --text:#14181D;
  --text-2:#5B6470;
  --text-3:#8C939C;
  --danger:#E5484D;
  --radius-btn:10px;
  --radius-card:16px;
  --radius-img:12px;
  --shadow-hover:0 18px 40px rgba(14,17,22,.08);
  --shadow-pop:0 24px 60px rgba(14,17,22,.18);
  --container:1200px;
  --narrow:760px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-title:"Inter Tight","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-family:var(--font-title);color:var(--text)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
input,button{font-size:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.skip-link{
  position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;
  padding:12px 20px;border-radius:0 0 var(--radius-btn) 0;z-index:200;
}
.skip-link:focus{left:0}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .28s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(14,17,22,.06)}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  height:72px;
  transition:height .28s var(--ease);
}
.site-header.is-scrolled .header-inner{height:60px}
.nav-side{display:flex;align-items:center;gap:18px}
.nav-left{grid-column:1;justify-self:start}
.nav-right{grid-column:3;justify-self:end;gap:20px}
.brand{
  grid-column:2;
  display:inline-flex;align-items:center;gap:10px;
  padding:6px 4px;
}
.brand-mark{
  position:relative;width:26px;height:26px;border-radius:8px;
  background:var(--ink);flex:none;
}
.brand-mark::after{
  content:"";position:absolute;inset:7px;border-radius:3px;background:var(--accent);
}
.brand-text{
  font-family:var(--font-title);
  font-size:15px;font-weight:700;letter-spacing:-.01em;line-height:1.2;
  color:var(--text);white-space:nowrap;
}
.nav-link{
  position:relative;
  font-size:15px;color:var(--text-2);
  padding:6px 2px;
  transition:color .28s var(--ease);
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:100%;bottom:-4px;height:2px;
  background:var(--accent);transition:right .28s var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{right:0}
.nav-link.is-active{color:var(--text)}
.nav-link.is-active::after{right:0}
.nav-dot{width:4px;height:4px;border-radius:50%;background:var(--line);flex:none}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:50px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .24s var(--ease),background .24s var(--ease),color .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.btn-primary{background:var(--accent);color:var(--accent-ink)}
.btn-primary:hover{
  transform:translateY(-2px);
  filter:brightness(1.04);
  box-shadow:0 14px 30px rgba(22,224,163,.28);
}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-sm{min-height:42px;padding:0 18px;font-size:14px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--accent-ink);
  padding-bottom:2px;
  background-image:linear-gradient(var(--accent),var(--accent));
  background-repeat:no-repeat;background-size:0 2px;background-position:0 100%;
  transition:background-size .28s var(--ease),color .28s var(--ease);
}
.text-link:hover{background-size:100% 2px}
.text-link::after{content:"→";font-size:13px;transition:transform .28s var(--ease)}
.text-link:hover::after{transform:translateX(3px)}

/* ---------- drawer ---------- */
.nav-toggle{
  display:none;
  flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 10px;
  background:transparent;border:1px solid var(--line);border-radius:10px;
  cursor:pointer;
}
.nav-toggle-bar{display:block;height:2px;width:100%;background:var(--ink);border-radius:2px}
.drawer-close,.drawer-cta{display:none}
.backdrop{
  position:fixed;inset:0;background:rgba(14,17,22,.5);
  opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);
  z-index:70;
}
.backdrop.is-open{opacity:1;visibility:visible}

/* ---------- banner ---------- */
.page-banner{
  position:relative;
  background-color:var(--ink);
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  color:#fff;
  isolation:isolate;
}
.page-banner::before{
  content:"";position:absolute;inset:0;background:rgba(14,17,22,.62);z-index:-1;
}
.banner-inner{
  display:flex;flex-direction:column;justify-content:center;
  min-height:260px;padding:56px 0 40px;
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.7);order:2;margin-top:22px;
}
.breadcrumb a{color:rgba(255,255,255,.7);transition:color .24s var(--ease)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:rgba(255,255,255,.4)}
.breadcrumb .current{color:#fff}
.banner-tag{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  background:rgba(22,224,163,.16);color:var(--accent);
  font-size:12px;font-weight:600;letter-spacing:.02em;margin-bottom:16px;align-self:flex-start;
}
.page-banner h1{
  color:#fff;font-size:clamp(30px,4.4vw,52px);font-weight:800;line-height:1.12;
  letter-spacing:-.02em;max-width:820px;
}
.banner-lead{
  margin-top:16px;max-width:640px;
  font-size:16px;line-height:1.85;color:rgba(255,255,255,.76);
}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section--alt{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:680px;margin-bottom:48px}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--accent-ink);background:rgba(22,224,163,.14);
  padding:4px 12px;border-radius:999px;margin-bottom:16px;
}
.eyebrow--dark{color:var(--accent);background:rgba(22,224,163,.14)}
.section-head h2{
  font-size:clamp(26px,3.2vw,40px);font-weight:700;line-height:1.2;letter-spacing:-.01em;
}
.section-sub{margin-top:16px;font-size:16px;color:var(--text-2);line-height:1.85;max-width:620px}

/* ---------- stats ---------- */
.stat-row{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  border-top:1px solid var(--line);padding-top:40px;
}
.stat-item{display:flex;flex-direction:column;gap:8px}
.stat-num{
  font-family:var(--font-title);font-size:clamp(32px,4vw,48px);font-weight:800;
  line-height:1;color:var(--warn);letter-spacing:-.02em;
}
.stat-num em{font-style:normal;font-size:16px;font-weight:600;margin-left:4px;color:var(--text-2)}
.stat-label{font-size:13px;color:var(--text-2)}

/* ---------- card grid ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.scard{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;display:flex;flex-direction:column;gap:16px;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.scard:hover{transform:translateY(-4px);border-color:rgba(14,17,22,.22);box-shadow:var(--shadow-hover)}
.scard-icon{
  width:44px;height:44px;border-radius:12px;flex:none;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(22,224,163,.12);color:var(--accent-ink);
}
.scard-icon svg{width:22px;height:22px}
.scard h3{font-size:20px;font-weight:600;line-height:1.4}
.check-list{display:flex;flex-direction:column;gap:10px}
.check-list li{
  position:relative;padding-left:18px;font-size:15px;line-height:1.8;color:var(--text-2);
}
.check-list li::before{
  content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:50%;background:var(--accent);
}
.scard-foot{margin-top:auto;padding-top:8px;border-top:1px solid var(--line)}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;
}
.badge-mint{background:rgba(22,224,163,.14);color:var(--accent-ink)}
.badge-warn{background:rgba(255,106,61,.14);color:#B23A18}

/* ---------- flow ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step}
.flow-item{position:relative;padding-top:26px}
.flow-item::before{
  content:"";position:absolute;top:7px;left:0;right:0;height:2px;background:var(--line);
}
.flow-item::after{
  content:"";position:absolute;top:2px;left:0;width:12px;height:12px;border-radius:50%;
  background:var(--accent);border:3px solid var(--card);
}
.flow-num{
  display:block;font-family:var(--font-title);font-size:13px;font-weight:700;
  letter-spacing:.08em;color:var(--text-3);margin-bottom:8px;
}
.flow-item h3{font-size:18px;font-weight:600;margin-bottom:10px}
.flow-item p{font-size:15px;color:var(--text-2);line-height:1.8}

/* ---------- dark band ---------- */
.dark-band{background:var(--ink);color:#fff;padding:96px 0}
.dark-inner{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.dark-band h2{color:#fff;font-size:clamp(26px,3.2vw,38px);font-weight:700;line-height:1.2;letter-spacing:-.01em}
.dark-band p{color:rgba(255,255,255,.72);font-size:16px;line-height:1.85}
.dark-copy{display:flex;flex-direction:column;gap:16px}
.dark-figure{
  margin-top:12px;border-radius:var(--radius-img);overflow:hidden;background:var(--ink-2);
}
.dark-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.dark-list{display:flex;flex-direction:column}
.dark-list li{
  padding:26px 0;border-top:1px solid var(--line-dark);
}
.dark-list li:last-child{border-bottom:1px solid var(--line-dark)}
.dark-list h3{
  color:#fff;font-size:18px;font-weight:600;margin-bottom:8px;
  display:flex;align-items:center;gap:10px;
}
.dark-list h3::before{
  content:"";width:8px;height:8px;border-radius:50%;background:var(--accent);flex:none;
}
.dark-list p{font-size:15px}

/* ---------- faq ---------- */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.faq-aside{position:sticky;top:96px}
.faq-aside h2{font-size:clamp(26px,3.2vw,38px);font-weight:700;line-height:1.2;letter-spacing:-.01em}
.faq-aside p{margin-top:16px;font-size:16px;color:var(--text-2)}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:72px;padding:16px 0;cursor:pointer;list-style:none;
  font-family:var(--font-title);font-size:18px;font-weight:600;color:var(--text);
  transition:color .24s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--accent-ink)}
.faq-icon{
  position:relative;width:18px;height:18px;flex:none;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink);border-radius:2px;
  transition:transform .3s var(--ease),background .3s var(--ease);
}
.faq-icon::before{left:0;right:0;top:8px;height:1.5px}
.faq-icon::after{top:0;bottom:0;left:8px;width:1.5px}
.faq-item[open] .faq-icon::after{transform:scaleY(0)}
.faq-item[open] .faq-icon::before{background:var(--accent)}
.faq-answer{padding:0 0 24px;font-size:16px;line-height:1.9;color:var(--text-2);max-width:64ch}

/* ---------- cta strip ---------- */
.cta-strip{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:32px 36px;
}
.cta-strip h2{font-size:22px;font-weight:700;line-height:1.35}
.cta-strip p{margin-top:8px;font-size:15px;color:var(--text-2)}
.cta-actions{display:flex;gap:12px;flex:none;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#fff;padding:72px 0 0;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;
  padding-bottom:56px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:#fff}
.footer-brand .brand-text{color:#fff}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);max-width:36ch}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:18px}
.footer-link{
  display:block;font-size:14px;color:rgba(255,255,255,.68);
  padding:5px 0;transition:color .24s var(--ease),transform .24s var(--ease);
}
.footer-link:hover{color:var(--accent);transform:translateX(2px)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line-dark);padding:22px 0;
  font-size:13px;color:rgba(255,255,255,.56);
}
.back-top{color:rgba(255,255,255,.7);transition:color .24s var(--ease)}
.back-top:hover{color:var(--accent)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

@media (max-width:1279px){
  .container{padding:0 28px}
  .section{padding:80px 0}
  .dark-band{padding:80px 0}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .header-inner{grid-template-columns:auto 1fr auto;height:64px;gap:12px}
  .site-header.is-scrolled .header-inner{height:58px}
  .nav-toggle{display:flex;grid-column:1;justify-self:start}
  .brand{grid-column:2;justify-self:center}
  .nav-right{grid-column:3;justify-self:end}
  .nav-right .nav-link{display:none}
  .nav-left{
    position:fixed;top:0;left:0;bottom:0;width:84vw;max-width:360px;
    background:var(--ink);flex-direction:column;align-items:flex-start;
    gap:20px;padding:28px 24px 40px;overflow-y:auto;z-index:90;
    transform:translateX(-100%);transition:transform .32s var(--ease);
  }
  .nav-left.is-open{transform:none}
  .nav-left .nav-link{font-size:18px;font-weight:600;color:#fff;padding:4px 0}
  .nav-left .nav-link.is-active{color:var(--accent)}
  .nav-left .nav-link.is-active::after{right:0;bottom:-2px}
  .nav-left .nav-dot{display:none}
  .drawer-close{
    display:inline-flex;align-items:center;justify-content:center;
    width:40px;height:40px;margin-left:auto;
    background:transparent;border:1px solid var(--line-dark);border-radius:10px;
    color:#fff;font-size:20px;line-height:1;cursor:pointer;
  }
  .drawer-cta{display:inline-flex;width:100%;margin-top:8px}
  .section{padding:64px 0}
  .dark-band{padding:64px 0}
  .section-head{margin-bottom:36px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .stat-row{grid-template-columns:repeat(3,1fr);gap:20px;padding-top:32px}
  .flow{grid-template-columns:repeat(2,1fr);gap:28px 20px}
  .dark-inner{grid-template-columns:1fr;gap:40px}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .faq-aside{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding-bottom:40px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 20px}
  .brand-text{font-size:13px;white-space:normal;max-width:120px;line-height:1.25}
  .brand-mark{width:24px;height:24px;border-radius:7px}
  .brand-mark::after{inset:6px}
  .banner-inner{min-height:180px;padding:40px 0 32px}
  .banner-lead{font-size:15px}
  .section{padding:48px 0}
  .dark-band{padding:56px 0}
  .card-grid{grid-template-columns:1fr}
  .stat-row{grid-template-columns:1fr;gap:24px}
  .flow{grid-template-columns:1fr}
  .flow-item{padding-top:22px}
  .cta-strip{flex-direction:column;align-items:flex-start;padding:24px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  .page-banner h1{font-size:28px}
  .btn{min-height:48px;padding:0 20px}
  .stat-num{font-size:34px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
  --ink:#0E1116;
  --ink-2:#1B2028;
  --accent:#16E0A3;
  --accent-ink:#052B21;
  --warn:#FF6A3D;
  --paper:#F5F5F2;
  --card:#FFFFFF;
  --line:#E3E5E0;
  --line-dark:rgba(255,255,255,.12);
  --text:#14181D;
  --text-2:#5B6470;
  --text-3:#8C939C;
  --danger:#E5484D;
  --radius-btn:10px;
  --radius-card:16px;
  --radius-img:12px;
  --shadow-hover:0 18px 40px rgba(14,17,22,.08);
  --shadow-float:0 24px 60px rgba(14,17,22,.18);
  --space-section:96px;
  --header-h:72px;
  --font-title:"Inter Tight","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-top:var(--header-h);
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:none;cursor:pointer;}
h1,h2,h3,h4{margin:0;font-family:var(--font-title);color:var(--text);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:var(--header-h);
  background:#fff;
  border-bottom:1px solid transparent;
  transition:height .28s ease, background .28s ease, border-color .28s ease, box-shadow .28s ease;
}
.site-header.scrolled{
  height:60px;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
  border-bottom-color:var(--line);
}
.header-inner{
  position:relative;
  max-width:1360px;margin:0 auto;height:100%;
  padding:0 32px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{
  position:absolute;left:50%;top:50%;
  transform:translate(-50%,-50%);
  display:flex;align-items:center;gap:10px;
  padding:6px 8px;border-radius:10px;
}
.brand-mark{
  width:26px;height:26px;flex:none;border-radius:8px;
  background:linear-gradient(135deg,var(--accent) 0%,#0FB98A 100%);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:7px;border-radius:3px;background:var(--accent-ink);
}
.brand-text{
  display:flex;flex-direction:column;line-height:1.08;
  font-family:var(--font-title);font-weight:800;font-size:15px;letter-spacing:-.01em;
  color:var(--ink);
}
.nav-side{display:flex;align-items:center;gap:6px;flex:1;}
.nav-left{justify-content:flex-start;}
.nav-right{justify-content:flex-end;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  height:40px;padding:0 12px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--text-2);
  transition:color .22s ease,background .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .28s cubic-bezier(.22,.61,.36,1);
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--text);}
.nav-link.active::after{transform:scaleX(1);}
.nav-dot{width:4px;height:4px;border-radius:50%;background:var(--line);flex:none;}
.nav-cta{margin-left:10px;height:42px;padding:0 20px;font-size:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:20px;height:2px;background:var(--ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,17,22,.5);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:84vw;max-width:360px;z-index:120;
  background:var(--ink);color:#fff;padding:24px;
  transform:translateX(-100%);transition:transform .34s cubic-bezier(.22,.61,.36,1);
  display:flex;flex-direction:column;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;}
.drawer-brand{display:flex;align-items:center;gap:10px;font-family:var(--font-title);font-weight:800;font-size:15px;color:#fff;line-height:1.1;}
.drawer-close{width:44px;height:44px;border-radius:10px;color:#fff;font-size:22px;line-height:1;}
.drawer-nav{display:flex;flex-direction:column;gap:20px;}
.drawer-nav a{font-size:18px;font-weight:600;color:#fff;transition:color .2s ease;}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--accent);}
.drawer-foot{margin-top:auto;padding-top:24px;border-top:1px solid var(--line-dark);display:flex;flex-direction:column;gap:14px;}
.drawer-foot p{font-size:13px;color:rgba(255,255,255,.6);line-height:1.7;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:50px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .22s ease,background .22s ease,color .22s ease,box-shadow .22s ease,filter .22s ease;
}
.btn-primary{background:var(--accent);color:var(--accent-ink);}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.04);box-shadow:0 16px 32px rgba(22,224,163,.28);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{border-color:var(--ink);color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:#fff;}
.btn-ghost:active{background:var(--ink-2);}
.btn:disabled{background:var(--line);color:var(--text-3);border-color:transparent;cursor:not-allowed;}
.btn-block{width:100%;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--ink);position:relative;padding-bottom:2px;
}
.text-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--ink);
  transform:scaleX(0);transform-origin:left;transition:transform .28s cubic-bezier(.22,.61,.36,1);
}
.text-link:hover::after{transform:scaleX(1);}

/* ---------- banner ---------- */
.page-banner{
  position:relative;height:260px;overflow:hidden;
  display:flex;align-items:flex-end;
}
.banner-bg{
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
}
.banner-bg::after{content:"";position:absolute;inset:0;background:rgba(14,17,22,.62);}
.banner-inner{position:relative;z-index:2;padding-bottom:32px;width:100%;}
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,.62);margin-bottom:16px;
}
.breadcrumb a{color:rgba(255,255,255,.62);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:rgba(255,255,255,.3);}
.breadcrumb .current{color:#fff;}
.banner-eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--accent);margin-bottom:10px;
}
.page-banner h1{
  font-size:clamp(28px,3.6vw,44px);font-weight:800;line-height:1.16;
  letter-spacing:-.02em;color:#fff;max-width:820px;
}
.banner-sub{
  margin-top:12px;font-size:16px;line-height:1.8;
  color:rgba(255,255,255,.74);max-width:640px;
}

/* ---------- section base ---------- */
.section{padding:var(--space-section) 0;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head h2{
  font-size:clamp(26px,3.2vw,40px);font-weight:700;line-height:1.2;letter-spacing:-.01em;
}
.section-head p{margin-top:16px;font-size:16px;color:var(--text-2);line-height:1.85;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--accent-ink);background:rgba(22,224,163,.14);
  padding:5px 12px;border-radius:999px;margin-bottom:16px;
}

/* ---------- 版本列表 + 粘性卡 ---------- */
.download-layout{
  display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);
  gap:40px;align-items:start;
}
.version-list{border-top:1px solid var(--line);}
.version-row{
  display:grid;grid-template-columns:auto minmax(0,1fr) auto auto;
  gap:20px;align-items:center;
  padding:22px 4px;border-bottom:1px solid var(--line);
  transition:background .22s ease,padding-left .22s ease;
}
.version-row:hover{background:rgba(255,255,255,.85);padding-left:12px;}
.ver-badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:rgba(22,224,163,.14);color:var(--accent-ink);white-space:nowrap;
}
.ver-badge.warn{background:rgba(255,106,61,.14);color:#B23A16;}
.ver-main h3{font-size:18px;font-weight:600;line-height:1.4;}
.ver-main p{margin-top:6px;font-size:14px;color:var(--text-2);line-height:1.75;}
.ver-time{font-size:13px;color:var(--text-3);white-space:nowrap;}
.ver-arrow{
  width:34px;height:34px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--text-3);
  transition:border-color .22s ease,color .22s ease,transform .22s ease;
}
.version-row:hover .ver-arrow{border-color:var(--ink);color:var(--ink);transform:translateX(3px);}
.sticky-card{
  position:sticky;top:96px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;
}
.sticky-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--paper);}
.sticky-body{padding:28px;}
.sticky-body h3{font-size:20px;font-weight:600;line-height:1.35;}
.sticky-body p{margin-top:12px;font-size:15px;color:var(--text-2);line-height:1.8;}
.sticky-note{
  margin-top:20px;padding-top:18px;border-top:1px solid var(--line);
  font-size:13px;line-height:1.75;color:var(--text-3);
}
.sticky-body .btn{margin-top:20px;}

/* ---------- 图文核对 ---------- */
.check-split{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);
  gap:56px;align-items:center;
}
.check-split img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-img);background:var(--paper);
}
.check-list{display:flex;flex-direction:column;gap:4px;margin-top:8px;}
.check-item{
  display:grid;grid-template-columns:auto minmax(0,1fr);gap:16px;
  padding:20px 0;border-bottom:1px solid var(--line);
}
.check-item:last-child{border-bottom:none;}
.check-num{
  width:32px;height:32px;flex:none;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(22,224,163,.16);color:var(--accent-ink);
  font-family:var(--font-title);font-weight:700;font-size:14px;
}
.check-item h3{font-size:18px;font-weight:600;line-height:1.4;}
.check-item p{margin-top:6px;font-size:15px;color:var(--text-2);line-height:1.8;}

/* ---------- 深色辨别区 ---------- */
.section-dark{background:var(--ink);color:#fff;padding:var(--space-section) 0;}
.section-dark .section-head h2{color:#fff;}
.section-dark .section-head p{color:rgba(255,255,255,.72);}
.section-dark .eyebrow{background:rgba(22,224,163,.18);color:var(--accent);}
.judge-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;
}
.judge-card{
  background:var(--ink-2);border:1px solid var(--line-dark);border-radius:var(--radius-card);
  padding:28px;transition:transform .22s ease,border-color .22s ease;
}
.judge-card:hover{transform:translateY(-4px);border-color:rgba(22,224,163,.5);}
.judge-icon{
  width:40px;height:40px;border-radius:10px;background:rgba(22,224,163,.16);
  display:flex;align-items:center;justify-content:center;color:var(--accent);margin-bottom:18px;
}
.judge-card h3{font-size:19px;font-weight:600;color:#fff;line-height:1.4;}
.judge-card p{margin-top:10px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.72);}
.metric-row{
  margin-top:48px;padding-top:32px;border-top:1px solid var(--line-dark);
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;
}
.metric-num{
  font-family:var(--font-title);font-size:clamp(28px,3.2vw,40px);font-weight:800;
  color:var(--warn);line-height:1.1;letter-spacing:-.01em;
}
.metric-label{margin-top:8px;font-size:13px;color:rgba(255,255,255,.66);}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);max-width:920px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:72px;padding:16px 0;text-align:left;
  font-family:var(--font-title);font-size:18px;font-weight:600;color:var(--ink);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--accent-ink);}
.faq-sign{
  position:relative;width:20px;height:20px;flex:none;
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;background:var(--ink);border-radius:2px;
  transition:transform .32s cubic-bezier(.22,.61,.36,1),opacity .3s ease;
}
.faq-sign::before{left:0;right:0;top:9px;height:1.5px;}
.faq-sign::after{top:0;bottom:0;left:9px;width:1.5px;}
.faq-item.open .faq-sign::after{transform:scaleY(0);opacity:0;}
.faq-a{
  display:grid;grid-template-rows:0fr;
  transition:grid-template-rows .32s cubic-bezier(.22,.61,.36,1);
}
.faq-item.open .faq-a{grid-template-rows:1fr;}
.faq-a-inner{overflow:hidden;}
.faq-a-inner p{
  padding:0 0 24px;font-size:16px;line-height:1.9;color:var(--text-2);
  max-width:820px;
}

/* ---------- CTA 条 ---------- */
.cta-strip{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 32px;display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.cta-strip h3{font-size:20px;font-weight:600;line-height:1.4;}
.cta-strip p{margin-top:8px;font-size:15px;color:var(--text-2);line-height:1.75;max-width:620px;}
.cta-actions{display:flex;gap:12px;flex:none;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#fff;padding:72px 0 28px;margin-top:0;}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{color:#fff;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:320px;}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;font-family:var(--font-body);}
.footer-link{
  display:block;font-size:14px;color:rgba(255,255,255,.68);
  padding:6px 0;transition:color .2s ease,transform .2s ease;
}
.footer-link:hover{color:var(--accent);transform:translateX(2px);}
.footer-bottom{
  margin-top:56px;padding-top:24px;border-top:1px solid var(--line-dark);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}
.back-top{color:rgba(255,255,255,.68);transition:color .2s ease;}
.back-top:hover{color:var(--accent);}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s cubic-bezier(.22,.61,.36,1),transform .5s cubic-bezier(.22,.61,.36,1);}
.reveal.is-visible{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .header-inner{padding:0 24px;}
  .nav-link{font-size:14px;padding:0 10px;}
}
@media (max-width:1023px){
  :root{--space-section:64px;--header-h:64px;}
  .container{padding:0 24px;}
  .nav-left,.nav-right{display:none;}
  .nav-toggle{display:flex;}
  .brand{position:static;transform:none;left:auto;top:auto;}
  .brand-text{font-size:14px;}
  .header-inner{justify-content:space-between;}
  .download-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .sticky-card{position:static;}
  .check-split{grid-template-columns:minmax(0,1fr);gap:32px;}
  .judge-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .page-banner{height:220px;}
}
@media (max-width:767px){
  :root{--space-section:48px;}
  .container{padding:0 20px;}
  body{font-size:16px;}
  .page-banner{height:180px;}
  .banner-inner{padding-bottom:24px;}
  .banner-sub{font-size:15px;}
  .version-row{
    grid-template-columns:minmax(0,1fr) auto;
    row-gap:12px;
  }
  .ver-main{grid-column:1 / -1;order:-1;}
  .ver-time{font-size:12px;}
  .judge-grid{grid-template-columns:minmax(0,1fr);}
  .metric-row{grid-template-columns:minmax(0,1fr);gap:20px;}
  .metric-num{font-size:30px;}
  .cta-strip{flex-direction:column;align-items:flex-start;padding:24px;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .faq-q{font-size:16px;min-height:64px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:479px){
  .ver-badge{font-size:11px;padding:0 10px;}
  .sticky-body{padding:20px;}
  .judge-card{padding:20px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}