/* roulang page: index */
:root{
  --c-ink:#0E1116;
  --c-ink-2:#1A1F26;
  --c-accent:#C6FF3A;
  --c-accent-2:#FF5A1F;
  --c-bg:#F7F8F4;
  --c-surface:#FFFFFF;
  --c-surface-2:#F1F3EA;
  --c-line:#E4E7DC;
  --c-text:#14171C;
  --c-text-2:#5A6068;
  --c-text-3:#8A9099;
  --c-on-dark:#E8EBE2;
  --c-error:#D93025;
  --c-success:#1B9C5A;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:18px;
  --r-xl:24px;
  --r-pill:999px;
  --s-1:0 1px 2px rgba(14,17,22,.05),0 6px 18px rgba(14,17,22,.06);
  --s-2:0 10px 30px rgba(14,17,22,.12);
  --container:1200px;
  --container-wide:1280px;
  --read:760px;
  --sp-section:clamp(64px,9vw,112px);
  --ease:cubic-bezier(.2,.8,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-top:12px;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
input,select{font:inherit}
:focus-visible{outline:2px solid var(--c-ink);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.container-wide{width:100%;max-width:var(--container-wide);margin:0 auto;padding:0 24px}
.section{padding:var(--sp-section) 0}
.section--tight{padding:clamp(44px,6vw,72px) 0}
.on-dark{color:var(--c-on-dark)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-kicker{font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--c-accent-2)}
.section-head h2{font-size:clamp(24px,2.6vw,34px);margin-top:10px;max-width:720px}
.section-sub{margin-top:14px;color:var(--c-text-2);font-size:15px;max-width:640px}
.link-more{
  display:inline-block;font-size:14px;font-weight:700;color:var(--c-ink);
  border-bottom:2px solid var(--c-ink);padding-bottom:2px;
  transition:color .25s var(--ease),border-color .25s var(--ease);
}
.link-more:hover{color:var(--c-accent-2);border-color:var(--c-accent-2)}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:12px;z-index:80}
.nav-panel{
  display:flex;align-items:center;gap:18px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);box-shadow:var(--s-1);
  padding:10px 12px 10px 18px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:30px;height:30px;border-radius:10px;background:var(--c-ink);
  display:grid;place-items:center;flex:0 0 auto;
}
.brand-mark svg{width:16px;height:16px;display:block}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--c-text);white-space:nowrap}
.nav-cards{display:flex;gap:8px;margin-left:auto}
.nav-card{
  position:relative;display:inline-flex;align-items:center;gap:7px;
  padding:8px 14px;border-radius:var(--r-sm);
  background:var(--c-surface-2);color:var(--c-text-2);
  font-size:14px;font-weight:600;white-space:nowrap;
  transition:background .25s var(--ease),color .25s var(--ease),transform .25s var(--ease);
}
.nav-card:hover{background:var(--c-ink);color:var(--c-accent);transform:translateY(-1px)}
.nav-card.is-active{background:var(--c-ink);color:#FFFFFF}
.nav-card.is-active::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--c-accent);flex:0 0 auto;
}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-sm);
  background:var(--c-surface-2);border:1px solid var(--c-line);
  place-items:center;
}
.nav-toggle svg{width:18px;height:18px;stroke:var(--c-ink);stroke-width:2;fill:none}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);font-size:15px;font-weight:700;
  padding:14px 26px;white-space:nowrap;
  transition:background .25s var(--ease),color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.btn-primary{background:var(--c-accent);color:var(--c-ink)}
.btn-primary:hover{background:#B4F01F;transform:translateY(-1px);box-shadow:var(--s-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:transparent;color:var(--c-ink);border:1.5px solid var(--c-ink)}
.btn-ghost:hover{background:var(--c-ink);color:#FFFFFF}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn:disabled{background:var(--c-surface-2);color:var(--c-text-3);cursor:not-allowed;transform:none;box-shadow:none}
.on-dark .btn-ghost{color:var(--c-on-dark);border-color:var(--c-accent)}
.on-dark .btn-ghost:hover{background:var(--c-accent);color:var(--c-ink)}

/* ---------- 抽屉导航 ---------- */
.drawer{
  position:fixed;inset:0;z-index:200;background:rgba(14,17,22,.97);
  padding:20px;display:flex;flex-direction:column;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s;
}
.drawer.is-open{opacity:1;visibility:visible;transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px}
.drawer-close{
  width:42px;height:42px;border-radius:var(--r-sm);background:var(--c-ink-2);
  border:1px solid rgba(232,235,226,.16);display:grid;place-items:center;
}
.drawer-close svg{width:16px;height:16px;stroke:var(--c-on-dark);stroke-width:2;fill:none}
.drawer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:26px}
.drawer-card{
  background:var(--c-ink-2);border:1px solid rgba(232,235,226,.14);
  border-radius:var(--r-lg);padding:20px 18px;color:var(--c-on-dark);
  font-size:16px;font-weight:700;display:flex;flex-direction:column;gap:8px;
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.drawer-card small{font-size:13px;font-weight:500;color:var(--c-text-3);line-height:1.7}
.drawer-card:hover{border-color:var(--c-accent);background:#20262E}
.drawer-card.is-active{border-color:var(--c-accent)}
.drawer-cta{margin-top:auto;width:100%}

/* ---------- Hero ---------- */
.hero{position:relative;padding:60px 0 var(--sp-section);overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(circle,rgba(14,17,22,.13) 1.5px,transparent 1.5px);
  background-size:46px 46px;
  -webkit-mask-image:linear-gradient(180deg,#000,transparent 72%);
  mask-image:linear-gradient(180deg,#000,transparent 72%);
  opacity:.7;
}
.hero::after{
  content:"";position:absolute;right:-14%;top:-24%;width:58%;height:150%;
  background:repeating-linear-gradient(115deg,rgba(198,255,58,.55) 0 2px,transparent 2px 30px);
  transform:rotate(-9deg);opacity:.14;pointer-events:none;
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--c-surface-2);border:1px solid var(--c-line);
  border-radius:var(--r-pill);padding:7px 15px;
  font-size:13px;font-weight:600;color:var(--c-text-2);
}
.eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--c-accent-2);flex:0 0 auto}
.hero h1{
  font-size:clamp(30px,4.4vw,54px);font-weight:800;line-height:1.15;
  letter-spacing:-.02em;margin-top:22px;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(transparent 60%,var(--c-accent) 60%,var(--c-accent) 88%,transparent 88%);
}
.hero-sub{margin-top:22px;font-size:17px;color:var(--c-text-2);max-width:540px}
.hero-cta{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;
  margin-top:46px;padding-top:28px;border-top:1px solid var(--c-line);
}
.stat-num{
  font-size:clamp(28px,3vw,40px);font-weight:900;line-height:1.1;
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;color:var(--c-ink);
}
.stat-num span{color:var(--c-accent-2)}
.stat-label{margin-top:6px;font-size:13px;color:var(--c-text-3);line-height:1.6}
.hero-media{position:relative;border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--s-2)}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-badge{
  position:absolute;left:18px;bottom:18px;
  background:var(--c-accent);color:var(--c-ink);
  border-radius:var(--r-pill);padding:9px 17px;
  font-size:13px;font-weight:700;box-shadow:var(--s-1);
}

/* ---------- 通用卡片 ---------- */
.card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);box-shadow:var(--s-1);
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:var(--c-ink);box-shadow:var(--s-2)}
.badge{
  display:inline-flex;align-items:center;
  background:rgba(198,255,58,.42);color:var(--c-ink);
  border-radius:var(--r-pill);padding:4px 12px;
  font-size:12px;font-weight:700;
}

/* ---------- 卖点错落三连 ---------- */
.usp-grid{display:grid;grid-template-columns:1.1fr 1fr;grid-template-rows:1fr 1fr;gap:24px}
.usp-main{
  grid-row:1 / span 2;
  background:var(--c-ink);border:1px solid rgba(232,235,226,.14);
  color:var(--c-on-dark);border-radius:var(--r-lg);
  padding:38px;display:flex;flex-direction:column;justify-content:space-between;gap:32px;
  box-shadow:none;
  transition:transform .25s var(--ease),border-color .25s var(--ease);
}
.usp-main:hover{transform:translateY(-4px);border-color:var(--c-accent)}
.usp-num{
  font-size:clamp(34px,4vw,48px);font-weight:900;line-height:1;
  font-variant-numeric:tabular-nums;letter-spacing:-.03em;color:var(--c-accent);
}
.usp-card .usp-num{color:var(--c-accent-2);font-size:32px}
.usp-main h3{font-size:clamp(22px,2.2vw,28px);margin-top:18px;color:#FFFFFF}
.usp-main p{margin-top:16px;color:#C9CFC6;font-size:15px}
.usp-card{padding:30px;display:flex;flex-direction:column;gap:12px}
.usp-card h3{font-size:20px}
.usp-card p{color:var(--c-text-2);font-size:15px}
.usp-list{margin-top:8px;display:grid;gap:10px}
.usp-list li{
  display:flex;align-items:center;gap:10px;
  font-size:14px;color:#C9CFC6;
}
.usp-list li::before{
  content:"";width:8px;height:8px;border-radius:2px;
  background:var(--c-accent);flex:0 0 auto;
}

/* ---------- 项目卡片 ---------- */
.program-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.program-card{overflow:hidden;display:flex;flex-direction:column}
.program-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.program-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.program-body h3{font-size:19px}
.program-body p{font-size:14px;color:var(--c-text-2);line-height:1.8}
.program-tag{
  align-self:flex-start;
  font-size:12px;font-weight:700;color:var(--c-text-2);
  background:var(--c-surface-2);border-radius:var(--r-pill);padding:4px 11px;
}

/* ---------- 流程 ---------- */
.process-media{border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--s-1)}
.process-media img{width:100%;aspect-ratio:21/9;object-fit:cover}
.process-steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-top:38px}
.step{position:relative;padding-top:28px}
.step::before{
  content:"";position:absolute;top:0;left:0;width:13px;height:13px;
  border-radius:50%;background:var(--c-surface);border:2px solid var(--c-line);
}
.step::after{
  content:"";position:absolute;top:6px;left:18px;right:-18px;height:2px;
  background:var(--c-line);
}
.step:last-child::after{display:none}
.step.is-current::before{background:var(--c-accent);border-color:var(--c-accent);box-shadow:0 0 0 4px rgba(198,255,58,.35)}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;color:var(--c-text-2);line-height:1.8}
.step-index{
  display:block;font-size:12px;font-weight:800;letter-spacing:.14em;
  color:var(--c-text-3);margin-bottom:6px;font-variant-numeric:tabular-nums;
}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.news-card{overflow:hidden;display:flex;flex-direction:column}
.news-card.is-featured{
  grid-column:span 3;display:grid;grid-template-columns:40% 1fr;
}
.news-thumb{display:block;overflow:hidden}
.news-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-card.is-featured .news-thumb img{height:100%;aspect-ratio:auto;min-height:280px}
.news-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.news-time{font-size:13px;color:var(--c-text-3);font-variant-numeric:tabular-nums}
.news-title{font-size:17px;line-height:1.4}
.news-card.is-featured .news-title{font-size:clamp(20px,2.2vw,26px)}
.news-title a{transition:color .25s var(--ease)}
.news-title a:hover{color:var(--c-accent-2)}
.news-sum{font-size:14px;color:var(--c-text-2);line-height:1.8}
.news-card:not(.is-featured) .news-sum{
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;
  padding:56px 24px;background:var(--c-surface);
  border:1px dashed var(--c-line);border-radius:var(--r-lg);color:var(--c-text-2);
}
.empty-state svg{width:34px;height:34px;stroke:var(--c-text-3);stroke-width:1.6;fill:none}

/* ---------- 证言与伙伴 ---------- */
.quotes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:start}
.quote-card{padding:28px;display:flex;flex-direction:column;gap:16px}
.quote-card:nth-child(2){margin-top:28px}
.quote-card:nth-child(3){margin-top:56px}
.quote-text{font-size:15px;color:var(--c-text-2);line-height:1.85}
.quote-who{display:flex;align-items:center;gap:12px;margin-top:auto}
.quote-avatar{
  width:38px;height:38px;border-radius:50%;background:var(--c-ink);color:var(--c-accent);
  display:grid;place-items:center;font-size:14px;font-weight:800;flex:0 0 auto;
}
.quote-name{font-size:14px;font-weight:700}
.quote-role{font-size:13px;color:var(--c-text-3)}
.partners{
  margin-top:56px;padding-top:30px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;align-items:center;gap:14px 34px;
}
.partners-label{font-size:13px;font-weight:700;color:var(--c-text-3);letter-spacing:.1em}
.partner-item{
  font-size:15px;font-weight:700;color:var(--c-text-3);
  filter:grayscale(1);opacity:.8;
  transition:color .25s var(--ease),opacity .25s var(--ease),filter .25s var(--ease);
}
.partner-item:hover{color:var(--c-ink);opacity:1;filter:none}

/* ---------- FAQ ---------- */
.faq-list{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);box-shadow:var(--s-1);overflow:hidden;
}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  position:relative;width:100%;display:flex;align-items:center;justify-content:space-between;
  gap:18px;text-align:left;padding:22px 26px;
  font-size:17px;font-weight:700;color:var(--c-text);
  transition:color .25s var(--ease);
}
.faq-q::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;
  background:var(--c-accent);border-radius:2px;opacity:0;
  transition:opacity .25s var(--ease);
}
.faq-q:hover{color:var(--c-ink)}
.faq-item.is-open .faq-q::before{opacity:1}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  background:var(--c-surface-2);display:grid;place-items:center;
  transition:transform .25s var(--ease),background .25s var(--ease);
}
.faq-icon svg{width:12px;height:12px;stroke:var(--c-ink);stroke-width:2.2;fill:none}
.faq-item.is-open .faq-icon{background:var(--c-accent);transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-item.is-open .faq-a{max-height:360px}
.faq-a p{padding:0 26px 24px 26px;font-size:15px;line-height:1.9;color:var(--c-text-2)}

/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:var(--c-ink) url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  color:var(--c-on-dark);
  padding:clamp(38px,5.5vw,68px);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(118deg,rgba(14,17,22,.95),rgba(14,17,22,.78));
  pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(115deg,rgba(198,255,58,.9) 0 2px,transparent 2px 32px);
  opacity:.08;
}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.1fr 1fr;gap:44px;align-items:center}
.cta-inner h2{font-size:clamp(24px,3vw,36px);color:#FFFFFF;margin-top:12px}
.cta-inner > div > p{margin-top:16px;color:#C9CFC6;font-size:15px;max-width:520px}
.cta-actions{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap}
.cta-form{
  position:relative;z-index:1;background:rgba(26,31,38,.86);
  border:1px solid rgba(232,235,226,.16);border-radius:var(--r-lg);
  padding:26px;display:grid;gap:16px;
}
.field{display:grid;gap:8px}
.field label{font-size:14px;font-weight:700;color:var(--c-on-dark)}
.field input,.field select{
  height:48px;width:100%;border-radius:var(--r-sm);
  border:1px solid rgba(232,235,226,.2);background:var(--c-ink-2);
  color:var(--c-on-dark);padding:0 14px;font-size:15px;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.field input::placeholder{color:#7C838C}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--c-accent);
  box-shadow:0 0 0 4px rgba(198,255,58,.22);
}
.form-msg{font-size:13px;min-height:18px;line-height:1.6}
.form-msg.ok{color:var(--c-accent)}
.form-msg.err{color:var(--c-accent-2)}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;margin-top:var(--sp-section);
  background:var(--c-ink);color:var(--c-on-dark);padding-top:4px;
}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--c-accent)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:66px 0 42px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-mark{background:var(--c-accent)}
.footer-brand .brand-text{color:#FFFFFF}
.footer-desc{font-size:14px;color:#C9CFC6;max-width:320px}
.footer-contact{margin-top:20px;display:grid;gap:8px;font-size:14px;color:#C9CFC6}
.footer-contact span{color:var(--c-text-3);font-size:13px}
.footer-title{font-size:14px;font-weight:700;color:#FFFFFF;letter-spacing:.06em;margin-bottom:18px}
.footer-links a{display:block;font-size:14px;color:#C9CFC6;padding:6px 0;transition:color .25s var(--ease)}
.footer-links a:hover{color:var(--c-accent)}
.footer-bottom{
  border-top:1px solid rgba(232,235,226,.12);padding:22px 0 30px;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  flex-wrap:wrap;font-size:13px;color:var(--c-text-3);
}
.footer-bottom a{color:var(--c-text-3);transition:color .25s var(--ease)}
.footer-bottom a:hover{color:var(--c-accent)}

/* ---------- 底部固定转化条 ---------- */
.sticky-cta{
  position:fixed;right:24px;bottom:24px;z-index:90;
  display:flex;align-items:center;gap:16px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-pill);box-shadow:var(--s-2);
  padding:9px 9px 9px 22px;
  opacity:0;transform:translateY(16px);pointer-events:none;
  transition:opacity .3s var(--ease),transform .3s var(--ease);
}
.sticky-cta.is-visible{opacity:1;transform:none;pointer-events:auto}
.sticky-cta p{font-size:14px;font-weight:700;white-space:nowrap}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container,.container-wide{padding:0 22px}
  .program-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
}
@media (max-width:1023px){
  .nav-cards{display:none}
  .nav-toggle{display:grid}
  .nav-actions .btn{display:none}
  .nav-panel{padding:10px 12px}
  .hero{padding:44px 0 var(--sp-section)}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-media{order:-1}
  .usp-grid{grid-template-columns:1fr;grid-template-rows:auto}
  .usp-main{grid-row:auto}
  .program-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .process-steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 18px}
  .step:nth-child(2)::after{display:none}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .news-card.is-featured{grid-column:span 2;grid-template-columns:1fr;min-height:0}
  .news-card.is-featured .news-thumb img{min-height:0;aspect-ratio:16/10;height:auto}
  .quotes{grid-template-columns:1fr}
  .quote-card:nth-child(2),.quote-card:nth-child(3){margin-top:0}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;padding:52px 0 34px}
  .sticky-cta{
    left:0;right:0;bottom:0;border-radius:0;border-left:0;border-right:0;border-bottom:0;
    padding:9px 16px calc(9px + env(safe-area-inset-bottom)) 18px;
    justify-content:space-between;min-height:64px;
  }
}
@media (max-width:767px){
  :root{--sp-section:clamp(44px,10vw,64px)}
  .container,.container-wide{padding:0 18px}
  .section-head{margin-bottom:28px}
  .program-grid{grid-template-columns:1fr}
  .process-steps{grid-template-columns:1fr;gap:26px}
  .step::after{display:none}
  .news-grid{grid-template-columns:1fr}
  .news-card.is-featured{grid-column:span 1}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .faq-q{padding:18px;font-size:16px}
  .faq-a p{padding:0 18px 20px 18px}
  .partners{gap:12px 22px}
  .sticky-cta p{display:none}
  .sticky-cta .btn{width:100%}
}
@media (max-width:480px){
  body{font-size:16px;padding-top:10px}
  .brand-text{font-size:16px}
  .hero h1{font-size:clamp(27px,8.4vw,34px)}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
  .card,.usp-main,.quote-card{padding:18px}
  .usp-card{padding:22px 18px}
  .program-body{padding:18px 18px 22px}
  .news-body{padding:18px 18px 22px}
  .cta-band{padding:28px 18px}
  .cta-form{padding:20px 18px}
  .btn{padding:13px 22px}
  .drawer-grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --c-ink:#0E1116;--c-ink-2:#1A1F26;
  --c-accent:#C6FF3A;--c-accent-2:#FF5A1F;
  --c-bg:#F7F8F4;--c-surface:#FFFFFF;--c-surface-2:#F1F3EA;
  --c-line:#E4E7DC;--c-text:#14171C;--c-text-2:#5A6068;--c-text-3:#8A9099;
  --c-on-dark:#E8EBE2;--c-error:#D93025;--c-success:#1B9C5A;
  --r-sm:10px;--r-md:14px;--r-lg:18px;--r-xl:24px;--r-pill:999px;
  --s-1:0 1px 2px rgba(14,17,22,.05),0 6px 18px rgba(14,17,22,.06);
  --s-2:0 10px 30px rgba(14,17,22,.12);
  --container:1200px;--container-wide:1280px;--read:760px;
  --sp-section:clamp(64px,9vw,112px);
  --ease:cubic-bezier(.2,.8,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--c-bg);color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-text);text-decoration:none}
button{font:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--c-text)}
p{margin:0}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--c-ink);outline-offset:2px;border-radius:4px}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}
.container-wide{max-width:var(--container-wide);margin:0 auto;padding:0 20px}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:var(--c-bg);padding:12px 0}
.nav-panel{
  display:flex;align-items:center;gap:18px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);box-shadow:var(--s-1);padding:10px 14px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{width:26px;height:26px;display:inline-flex;align-items:center;justify-content:center;background:var(--c-ink);border-radius:8px}
.brand-mark svg{width:17px;height:17px;display:block}
.brand-text{font-size:18px;font-weight:800;letter-spacing:-.02em;color:var(--c-ink);white-space:nowrap}
.nav-cards{display:flex;align-items:center;gap:8px;margin-left:8px;flex:1}
.nav-card{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--c-surface-2);border-radius:var(--r-sm);
  padding:8px 14px;font-size:14px;font-weight:600;color:var(--c-text);
  transition:background .25s var(--ease),color .25s var(--ease),box-shadow .25s var(--ease);
}
.nav-card:hover{background:var(--c-ink);color:#fff}
.nav-card.is-active{box-shadow:inset 0 -2px 0 var(--c-accent)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:none}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--c-line);
  background:var(--c-surface-2);border-radius:var(--r-sm);cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle svg{width:20px;height:20px;fill:none;stroke:var(--c-ink);stroke-width:2}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);font-weight:700;cursor:pointer;border:1.5px solid transparent;
  transition:background .25s var(--ease),color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
  text-align:center;
}
.btn-primary{background:var(--c-accent);color:var(--c-ink);padding:14px 26px;font-size:16px}
.btn-primary:hover{background:#B4F01F;transform:translateY(-1px);box-shadow:var(--s-2)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--c-ink);border-color:var(--c-ink);padding:14px 26px;font-size:16px}
.btn-ghost:hover{background:var(--c-ink);color:#fff}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-dark{background:var(--c-ink);color:#fff;padding:14px 26px;font-size:16px}
.btn-dark:hover{background:var(--c-ink-2);color:var(--c-accent);transform:translateY(-1px)}
.btn[disabled],.btn.is-disabled{background:var(--c-surface-2);color:var(--c-text-3);cursor:not-allowed;transform:none;box-shadow:none;border-color:var(--c-line)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--c-text);border-bottom:2px solid var(--c-accent);padding-bottom:2px;transition:color .25s var(--ease),border-color .25s var(--ease)}
.link-arrow:hover{color:var(--c-ink);border-color:var(--c-accent-2)}

/* ---------- 抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;background:rgba(14,17,22,.55);
  opacity:0;visibility:hidden;transition:opacity .25s var(--ease),visibility .25s var(--ease);
}
.drawer.is-open{opacity:1;visibility:visible}
.drawer-panel{
  margin:14px;background:var(--c-surface);border-radius:var(--r-xl);padding:20px;
  display:flex;flex-direction:column;gap:16px;transform:translateY(-12px);transition:transform .3s var(--ease);
}
.drawer.is-open .drawer-panel{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--c-line);background:var(--c-surface-2);cursor:pointer;font-size:20px;line-height:1;color:var(--c-ink)}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.drawer-grid a{
  background:var(--c-surface-2);border-radius:var(--r-md);padding:16px 14px;
  font-weight:700;color:var(--c-text);display:flex;flex-direction:column;gap:4px;
}
.drawer-grid a span{font-size:12px;font-weight:500;color:var(--c-text-3)}
.drawer-grid a:hover{background:var(--c-ink);color:#fff}
.drawer-grid a:hover span{color:#B9C0B4}
.drawer-cta{margin-top:auto}

/* ---------- 面包屑与文章头 ---------- */
.article-hero{padding:36px 0 28px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);flex-wrap:nowrap;overflow:hidden}
.breadcrumb a{color:var(--c-text-2);transition:color .25s var(--ease)}
.breadcrumb a:hover{color:var(--c-ink);border-bottom:2px solid var(--c-accent)}
.breadcrumb .sep{color:var(--c-line)}
.breadcrumb .current{color:var(--c-text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:52%}
.badge{display:inline-flex;align-items:center;border-radius:var(--r-pill);font-size:12px;font-weight:700;padding:5px 12px;line-height:1.6}
.badge-accent{background:rgba(198,255,58,.28);color:var(--c-ink);border:1px solid rgba(198,255,58,.7)}
.badge-hot{background:var(--c-accent-2);color:#fff}
.article-hero .badge{margin:22px 0 14px}
.article-title{
  font-size:clamp(30px,4.4vw,54px);font-weight:800;line-height:1.15;letter-spacing:-.02em;
  max-width:960px;
}
.article-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:20px;font-size:13px;color:var(--c-text-3)}
.meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-item time{font-variant-numeric:tabular-nums}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--c-line)}
.hero-rule{height:1px;background:var(--c-line);margin-top:26px}

/* ---------- 正文 ---------- */
.article-main{padding-bottom:var(--sp-section)}
.article-body{
  max-width:var(--read);margin:0 auto;font-size:17px;line-height:1.85;color:var(--c-text);
}
.article-body > *:first-child{margin-top:0}
.article-body h2{
  font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.35;
  margin:44px 0 18px;padding-left:16px;position:relative;
}
.article-body h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--c-accent)}
.article-body h3{font-size:20px;font-weight:700;margin:34px 0 14px}
.article-body h4{font-size:17px;font-weight:700;margin:26px 0 12px}
.article-body p{margin:0 0 24px;color:var(--c-text)}
.article-body ul,.article-body ol{margin:0 0 24px;padding-left:4px}
.article-body li{margin-bottom:10px;list-style:none;position:relative;padding-left:22px}
.article-body ul li::before{content:"";position:absolute;left:0;top:.68em;width:8px;height:8px;background:var(--c-accent);border:1px solid var(--c-ink);border-radius:2px}
.article-body ol{counter-reset:li}
.article-body ol li{counter-increment:li}
.article-body ol li::before{
  content:counter(li,decimal-leading-zero);position:absolute;left:0;top:.15em;
  font-size:13px;font-weight:800;color:var(--c-accent-2);font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:0 0 24px;padding:18px 24px;background:var(--c-surface-2);
  border-left:4px solid var(--c-accent);border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--c-text-2);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body figure{margin:0 0 26px}
.article-body img{border-radius:var(--r-md);width:100%;background:var(--c-surface-2)}
.article-body figcaption{font-size:13px;color:var(--c-text-3);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 26px;font-size:15px;background:var(--c-surface);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--s-1)}
.article-body th{background:var(--c-ink);color:var(--c-on-dark);text-align:left;padding:13px 16px;font-weight:700}
.article-body td{padding:13px 16px;border-bottom:1px solid var(--c-line);color:var(--c-text-2);font-variant-numeric:tabular-nums}
.article-body tbody tr:nth-child(even){background:var(--c-surface-2)}
.article-body pre{background:var(--c-ink);color:var(--c-on-dark);padding:20px;border-radius:var(--r-md);overflow-x:auto;font-size:14px;margin:0 0 26px;line-height:1.7}
.article-body code{background:var(--c-surface-2);border-radius:6px;padding:2px 6px;font-size:14px}
.article-body pre code{background:none;padding:0;color:inherit}
.article-body a{color:var(--c-ink);text-decoration:underline;text-decoration-color:var(--c-accent);text-decoration-thickness:2px;text-underline-offset:4px}
.article-body a:hover{text-decoration-color:var(--c-accent-2)}
.article-body hr{border:0;height:1px;background:var(--c-line);margin:36px 0}
.callout{
  background:var(--c-surface);border:1px solid var(--c-line);border-left:4px solid var(--c-accent-2);
  border-radius:var(--r-md);padding:18px 22px;margin:0 0 26px;font-size:15px;color:var(--c-text-2);box-shadow:var(--s-1);
}

/* ---------- 文末操作 ---------- */
.article-foot{max-width:var(--read);margin:48px auto 0}
.tag-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:20px 0;border-top:1px solid var(--c-line)}
.tag-label{font-size:13px;font-weight:700;color:var(--c-text-3)}
.tag{display:inline-flex;background:var(--c-surface-2);border-radius:var(--r-pill);padding:6px 14px;font-size:13px;font-weight:600;color:var(--c-text-2);transition:background .25s var(--ease),color .25s var(--ease)}
.tag:hover{background:var(--c-ink);color:#fff}
.share-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:20px 0;border-top:1px solid var(--c-line)}
.share-row .tag-label{margin-right:2px}
.share-btn{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-pill);
  padding:8px 16px;font-size:13px;font-weight:600;color:var(--c-text-2);cursor:pointer;
  transition:border-color .25s var(--ease),color .25s var(--ease),background .25s var(--ease);
}
.share-btn:hover{border-color:var(--c-ink);color:var(--c-ink);background:var(--c-surface-2)}
.share-btn.is-done{background:var(--c-accent);border-color:var(--c-accent);color:var(--c-ink)}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:26px}
.pager-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:20px;box-shadow:var(--s-1);transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.pager-item:hover{transform:translateY(-4px);border-color:var(--c-ink);box-shadow:var(--s-2)}
.pager-item span{font-size:12px;color:var(--c-text-3);display:block;margin-bottom:8px}
.pager-item strong{font-size:16px;font-weight:700;display:block;line-height:1.5}
.pager-item.text-right{text-align:right}
.back-row{margin-top:24px}

/* ---------- 相关推荐 ---------- */
.related{padding:var(--sp-section) 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px;flex-wrap:wrap}
.section-title{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.25}
.section-title span{color:var(--c-accent-2)}
.section-sub{margin-top:10px;color:var(--c-text-2);font-size:15px;max-width:620px}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--s-1);
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.post-card:hover{transform:translateY(-4px);border-color:var(--c-ink);box-shadow:var(--s-2)}
.post-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--c-surface-2)}
.post-thumb img{width:100%;height:100%;object-fit:cover}
.post-body{padding:24px;display:flex;flex-direction:column;gap:14px;flex:1}
.post-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-text-3);font-variant-numeric:tabular-nums}
.post-title{font-size:19px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-excerpt{font-size:15px;line-height:1.8;color:var(--c-text-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{margin-top:auto}

/* ---------- 空态 ---------- */
.empty-state{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:56px 24px;text-align:center;box-shadow:var(--s-1);
}
.empty-icon{width:56px;height:56px;margin:0 auto 18px;border-radius:var(--r-md);background:var(--c-surface-2);display:flex;align-items:center;justify-content:center;font-size:24px;color:var(--c-text-3)}
.empty-state h2{margin-bottom:10px}
.empty-state p{color:var(--c-text-2);margin-bottom:22px;font-size:15px}

/* ---------- 底部 CTA ---------- */
.cta-block{
  position:relative;overflow:hidden;margin-top:var(--sp-section);
  background:var(--c-ink);border-radius:var(--r-xl);padding:clamp(34px,5vw,60px);
  color:var(--c-on-dark);
}
.cta-block::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(198,255,58,.10) 0 1px,transparent 1px 34px);
  opacity:.9;pointer-events:none;
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-inner h2{color:#fff;font-size:clamp(24px,3vw,36px);line-height:1.25;max-width:560px}
.cta-inner p{margin-top:14px;color:#B9C0B4;font-size:15px;max-width:560px}
.cta-stats{display:flex;gap:32px;margin-top:26px;flex-wrap:wrap}
.cta-stat strong{display:block;font-size:clamp(30px,3.4vw,44px);font-weight:900;color:var(--c-accent);font-variant-numeric:tabular-nums;line-height:1.1}
.cta-stat span{font-size:13px;color:#B9C0B4}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn-outline-light{background:transparent;border:1.5px solid var(--c-accent);color:var(--c-accent);padding:14px 26px;font-size:16px}
.btn-outline-light:hover{background:var(--c-accent);color:var(--c-ink)}

/* ---------- 悬浮转化条 ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;
  display:flex;align-items:center;gap:14px;
  background:var(--c-ink);color:#fff;border:1px solid rgba(198,255,58,.35);
  border-radius:var(--r-pill);padding:10px 12px 10px 22px;box-shadow:var(--s-2);
  opacity:0;transform:translateY(16px);pointer-events:none;
  transition:opacity .35s var(--ease),transform .35s var(--ease);
}
.float-cta.is-visible{opacity:1;transform:none;pointer-events:auto}
.float-cta span{font-size:14px;font-weight:600;white-space:nowrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:#C9CFC6;margin-top:var(--sp-section);border-top:4px solid var(--c-accent)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding:clamp(44px,6vw,72px) 0 40px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--c-accent)}
.footer-brand .brand-text{color:#fff}
.footer-desc{font-size:14px;line-height:1.85;color:#9AA29A;max-width:320px}
.footer-contact{margin-top:18px;font-size:13px;color:#9AA29A;display:flex;flex-direction:column;gap:6px}
.footer-contact strong{font-size:20px;color:var(--c-accent);font-weight:800;font-variant-numeric:tabular-nums}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:#C9CFC6;transition:color .25s var(--ease)}
.footer-links a:hover{color:var(--c-accent)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;font-size:13px;color:#8A9099;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container,.container-wide{padding:0 24px}
}
@media (max-width:1023px){
  .nav-cards,.nav-actions .btn-primary{display:none}
  .nav-toggle{display:inline-flex}
  .card-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  :root{--sp-section:clamp(44px,10vw,64px)}
  .article-body{font-size:16px;line-height:1.9}
  .article-body p{margin-bottom:20px}
  .article-body h2{margin-top:34px}
  .pager{grid-template-columns:1fr}
  .pager-item.text-right{text-align:left}
  .card-grid{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  .container,.container-wide{padding:0 16px}
  .nav-panel{padding:8px 10px;gap:10px}
  .brand-text{font-size:16px}
  .post-body{padding:18px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;border-left:0;border-right:0;border-bottom:0;
    justify-content:space-between;padding:10px 14px calc(10px + env(safe-area-inset-bottom));
    transform:translateY(100%);
  }
  .float-cta.is-visible{transform:none}
}

/* roulang page: category1 */
:root{
  --c-ink:#0E1116;
  --c-ink-2:#1A1F26;
  --c-accent:#C6FF3A;
  --c-accent-2:#FF5A1F;
  --c-bg:#F7F8F4;
  --c-surface:#FFFFFF;
  --c-surface-2:#F1F3EA;
  --c-line:#E4E7DC;
  --c-text:#14171C;
  --c-text-2:#5A6068;
  --c-text-3:#8A9099;
  --c-on-dark:#E8EBE2;
  --c-error:#D93025;
  --c-success:#1B9C5A;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:18px;
  --r-xl:24px;
  --r-pill:999px;
  --s-1:0 1px 2px rgba(14,17,22,.05),0 6px 18px rgba(14,17,22,.06);
  --s-2:0 10px 30px rgba(14,17,22,.12);
  --container:1200px;
  --container-wide:1280px;
  --read:760px;
  --sp-section:clamp(64px,9vw,112px);
  --ease:cubic-bezier(.2,.8,.2,1);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-text);text-decoration:none;transition:color .25s var(--ease),background-color .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:2px solid var(--c-ink);
  outline-offset:2px;
}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-0.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.num{font-variant-numeric:tabular-nums;}
.container,.container-wide{width:100%;margin:0 auto;padding:0 20px;}
.container{max-width:var(--container);}
.container-wide{max-width:var(--container-wide);}
.section{padding-block:var(--sp-section);}
.section-tight{padding-block:clamp(44px,6vw,72px);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;}
.section-head p{color:var(--c-text-2);font-size:16px;margin-top:10px;max-width:640px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--c-text-2);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent-2);border-radius:2px;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  padding:12px 0;
  background:rgba(247,248,244,.94);
  backdrop-filter:saturate(150%) blur(10px);
}
.nav-panel{
  display:flex;align-items:center;gap:16px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--s-1);
  padding:10px 14px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:28px;height:28px;flex:0 0 auto;
  display:grid;place-items:center;
  border-radius:9px;background:var(--c-ink);
}
.brand-mark svg{width:17px;height:17px;display:block;}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-0.01em;color:var(--c-text);}
.nav-cards{display:flex;align-items:center;gap:8px;margin-left:8px;flex:1 1 auto;}
.nav-card{
  position:relative;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:var(--r-sm);
  background:var(--c-surface-2);
  color:var(--c-text-2);
  font-size:14px;font-weight:700;line-height:1.4;
  white-space:nowrap;
}
.nav-card:hover{background:var(--c-ink);color:var(--c-accent);}
.nav-card.is-active{color:var(--c-text);}
.nav-card.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;
  background:var(--c-accent);border-radius:2px;
}
.nav-card.is-active:hover{color:var(--c-accent);}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-sm);
  border:1px solid var(--c-line);background:var(--c-surface-2);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle svg{width:20px;height:20px;stroke:var(--c-ink);stroke-width:1.9;fill:none;}
.nav-toggle:hover{background:var(--c-ink);}
.nav-toggle:hover svg{stroke:var(--c-accent);}

/* 抽屉 */
.drawer{
  position:fixed;inset:0;z-index:120;
  background:var(--c-bg);
  padding:18px 20px calc(18px + env(safe-area-inset-bottom));
  display:none;flex-direction:column;gap:18px;
  overflow-y:auto;
}
.drawer.is-open{display:flex;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.drawer-title{font-size:13px;font-weight:700;color:var(--c-text-3);letter-spacing:.08em;}
.drawer-close{
  width:42px;height:42px;border-radius:var(--r-sm);border:1px solid var(--c-line);
  background:var(--c-surface);cursor:pointer;font-size:20px;line-height:1;color:var(--c-ink);
}
.drawer-close:hover{background:var(--c-ink);color:var(--c-accent);}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.drawer-card{
  display:block;padding:18px 16px;border-radius:var(--r-md);
  background:var(--c-surface);border:1px solid var(--c-line);
  font-size:16px;font-weight:700;color:var(--c-text);
}
.drawer-card span{display:block;font-size:13px;font-weight:500;color:var(--c-text-3);margin-top:6px;}
.drawer-card.is-active{border-color:var(--c-ink);box-shadow:inset 0 -3px 0 var(--c-accent);}
.drawer-card:hover{background:var(--c-ink);color:var(--c-accent);}
.drawer-card:hover span{color:var(--c-on-dark);}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:700;line-height:1.2;
  padding:14px 26px;border-radius:var(--r-pill);
  border:1.5px solid transparent;cursor:pointer;
  transition:all .25s var(--ease);white-space:nowrap;
}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-primary{background:var(--c-accent);color:var(--c-ink);}
.btn-primary:hover{background:#B4F01F;transform:translateY(-1px);box-shadow:var(--s-2);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{border-color:var(--c-ink);color:var(--c-ink);background:transparent;}
.btn-ghost:hover{background:var(--c-ink);color:#fff;}
.btn-ghost-dark{border-color:rgba(198,255,58,.7);color:var(--c-accent);background:transparent;}
.btn-ghost-dark:hover{background:var(--c-accent);color:var(--c-ink);border-color:var(--c-accent);}
.btn-disabled{background:var(--c-surface-2);color:var(--c-text-3);cursor:not-allowed;border-color:transparent;}
.btn-disabled:hover{transform:none;box-shadow:none;background:var(--c-surface-2);}
.link-arrow{
  font-size:15px;font-weight:700;color:var(--c-text);
  border-bottom:2px solid var(--c-accent);padding-bottom:2px;
}
.link-arrow:hover{color:var(--c-accent-2);border-color:var(--c-accent-2);}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  background:rgba(198,255,58,.32);color:var(--c-ink);
  font-size:12px;font-weight:700;line-height:1.5;
}
.badge-hot{background:var(--c-accent-2);color:#fff;}
.badge-outline{background:transparent;border:1px solid var(--c-line);color:var(--c-text-2);}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--r-pill);
  background:var(--c-surface-2);color:var(--c-text-2);font-size:13px;font-weight:600;
}

/* ---------- 深色页头 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--c-ink);color:var(--c-on-dark);
  border-radius:var(--r-xl);
  margin-top:8px;
}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  opacity:.34;
}
.page-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    repeating-linear-gradient(115deg,rgba(198,255,58,.06) 0 2px,transparent 2px 26px),
    linear-gradient(180deg,rgba(14,17,22,.55),rgba(14,17,22,.92));
}
.page-hero-inner{position:relative;z-index:2;padding:clamp(48px,7vw,88px) 20px clamp(40px,6vw,72px);}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;color:rgba(232,235,226,.7);margin-bottom:22px;flex-wrap:wrap;}
.breadcrumb a{color:rgba(232,235,226,.85);}
.breadcrumb a:hover{color:var(--c-accent);}
.breadcrumb span.sep{color:rgba(232,235,226,.4);}
.page-hero h1{
  font-size:clamp(30px,4.4vw,54px);line-height:1.15;letter-spacing:-0.02em;
  color:#fff;margin:16px 0 18px;
}
.page-hero-lead{max-width:640px;font-size:17px;line-height:1.85;color:rgba(232,235,226,.86);}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;
  margin-top:48px;padding-top:28px;
  border-top:1px solid rgba(232,235,226,.16);
}
.hero-stats li strong{
  display:block;font-size:clamp(30px,3.4vw,44px);font-weight:900;line-height:1.1;
  color:var(--c-accent);font-variant-numeric:tabular-nums;
}
.hero-stats li span{font-size:13px;color:rgba(232,235,226,.72);}

/* ---------- 时间轴 ---------- */
.timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;}
.timeline-item{position:relative;padding-top:38px;}
.timeline-item::before{
  content:"";position:absolute;top:10px;left:0;right:0;height:2px;
  background:var(--c-line);border-radius:2px;
}
.timeline-item:first-child::before{left:0;}
.timeline-dot{
  position:absolute;top:2px;left:0;width:20px;height:20px;border-radius:50%;
  background:var(--c-surface);border:2px solid var(--c-line);z-index:1;
}
.timeline-item.is-current .timeline-dot{background:var(--c-accent);border-color:var(--c-ink);}
.timeline-step{
  display:inline-block;font-size:12px;font-weight:800;letter-spacing:.1em;
  color:var(--c-text-3);margin-bottom:6px;font-variant-numeric:tabular-nums;
}
.timeline-item h3{font-size:20px;line-height:1.35;margin-bottom:8px;}
.timeline-item p{font-size:15px;color:var(--c-text-2);line-height:1.8;}

/* ---------- 赛事卡 ---------- */
.event-grid{display:grid;grid-template-columns:1.12fr 1fr 1fr;gap:24px;align-items:start;}
.event-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);box-shadow:var(--s-1);
  overflow:hidden;transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.event-card:hover{transform:translateY(-4px);border-color:var(--c-ink);box-shadow:var(--s-2);}
.event-card:nth-child(2){margin-top:30px;}
.event-card:nth-child(3){margin-top:60px;}
.event-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--c-surface-2);}
.event-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.event-card:hover .event-media img{transform:scale(1.04);}
.event-media .badge-hot{position:absolute;top:14px;left:14px;}
.event-body{padding:24px 26px 26px;}
.event-body h3{font-size:22px;line-height:1.35;margin-bottom:10px;}
.event-body p{font-size:15px;color:var(--c-text-2);line-height:1.8;margin-bottom:16px;}
.event-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;}
.event-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-text-3);
}
.event-foot strong{color:var(--c-text);font-size:15px;font-variant-numeric:tabular-nums;}

/* ---------- 规格卡 ---------- */
.spec-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.spec-card{
  background:var(--c-surface-2);border-radius:var(--r-md);
  padding:22px 24px;display:flex;gap:14px;align-items:flex-start;
}
.spec-icon{
  width:38px;height:38px;flex:0 0 auto;border-radius:11px;
  background:var(--c-surface);display:grid;place-items:center;
  border:1px solid var(--c-line);
}
.spec-icon svg{width:18px;height:18px;stroke:var(--c-ink);stroke-width:1.8;fill:none;}
.spec-card h3{font-size:15px;color:var(--c-text-3);font-weight:700;letter-spacing:.02em;margin-bottom:4px;}
.spec-card p{font-size:16px;font-weight:700;color:var(--c-text);line-height:1.6;}

/* ---------- 参赛对象 ---------- */
.audience{display:grid;grid-template-columns:1.05fr 1fr;gap:34px;align-items:center;}
.audience-media{border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--c-line);}
.audience-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.audience-list{display:grid;gap:14px;margin-top:22px;}
.audience-list li{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:16px 20px;display:flex;gap:14px;align-items:flex-start;
  transition:border-color .25s var(--ease),transform .25s var(--ease);
}
.audience-list li:hover{border-color:var(--c-ink);transform:translateY(-2px);}
.audience-list strong{display:block;font-size:16px;margin-bottom:2px;}
.audience-list span{font-size:14px;color:var(--c-text-2);}
.dot-mark{
  width:10px;height:10px;border-radius:3px;background:var(--c-accent);
  margin-top:9px;flex:0 0 auto;
}

/* ---------- 报名表单 ---------- */
.apply-wrap{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-xl);
  box-shadow:var(--s-1);padding:clamp(24px,4vw,40px);
}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-size:14px;font-weight:700;color:var(--c-text);}
.field input,.field select{
  height:48px;padding:0 16px;border-radius:var(--r-sm);
  border:1px solid var(--c-line);background:#fff;color:var(--c-text);
  font-size:15px;font-family:inherit;transition:all .25s var(--ease);
}
.field input::placeholder{color:var(--c-text-3);}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--c-ink);
  box-shadow:0 0 0 4px rgba(198,255,58,.35);
}
.field.has-error input{border-color:var(--c-error);}
.field .err{font-size:12px;color:var(--c-error);display:none;}
.field.has-error .err{display:block;}
.form-tip{font-size:13px;color:var(--c-text-3);margin-top:6px;}
.form-note{
  margin-top:18px;font-size:14px;color:var(--c-success);
  display:none;align-items:center;gap:8px;
}
.form-note.is-visible{display:flex;}

/* ---------- FAQ ---------- */
.faq-shell{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);box-shadow:var(--s-1);overflow:hidden;
}
.faq-item + .faq-item{border-top:1px solid var(--c-line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:18px;padding:20px 26px;font-size:17px;font-weight:700;color:var(--c-text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--c-accent-2);}
.faq-item[open] summary{box-shadow:inset 3px 0 0 var(--c-accent);}
.faq-icon{
  width:26px;height:26px;flex:0 0 auto;border-radius:50%;
  background:var(--c-surface-2);display:grid;place-items:center;
  font-size:16px;font-weight:700;color:var(--c-ink);
  transition:transform .25s var(--ease),background-color .25s var(--ease);
}
.faq-item[open] .faq-icon{transform:rotate(180deg);background:var(--c-accent);}
.faq-answer{padding:0 26px 24px;font-size:15px;line-height:1.9;color:var(--c-text-2);max-width:820px;}

/* ---------- CTA ---------- */
.cta-block{
  position:relative;overflow:hidden;
  background:var(--c-ink);color:var(--c-on-dark);
  border-radius:var(--r-xl);
  padding:clamp(40px,6vw,68px) clamp(24px,4vw,52px);
}
.cta-block::before{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(115deg,rgba(198,255,58,.07) 0 2px,transparent 2px 30px);
}
.cta-block::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,255,58,.18),transparent 68%);
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(24px,2.8vw,36px);line-height:1.25;color:#fff;margin-bottom:12px;}
.cta-inner p{font-size:16px;color:rgba(232,235,226,.82);max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--sp-section);
  background:var(--c-ink);color:var(--c-on-dark);
  border-top:4px solid var(--c-accent);
  padding:clamp(48px,6vw,72px) 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--c-accent);}
.footer-brand .brand-text{color:#fff;font-size:17px;font-weight:800;}
.footer-desc{font-size:14px;line-height:1.9;color:#C9CFC6;max-width:340px;}
.footer-contact{margin-top:18px;display:flex;flex-direction:column;gap:4px;font-size:13px;color:#8E958C;}
.footer-contact strong{font-size:20px;color:#fff;font-variant-numeric:tabular-nums;}
.footer-title{font-size:14px;font-weight:800;color:#fff;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:#C9CFC6;}
.footer-links a:hover{color:var(--c-accent);}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(232,235,226,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8E958C;
}

/* ---------- 底部固定转化条 ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:90;
  display:flex;align-items:center;gap:14px;
  background:var(--c-ink);color:var(--c-on-dark);
  border-radius:var(--r-pill);padding:10px 10px 10px 22px;
  box-shadow:var(--s-2);
  opacity:0;transform:translateY(16px);pointer-events:none;
  transition:opacity .35s var(--ease),transform .35s var(--ease);
}
.float-cta.is-visible{opacity:1;transform:none;pointer-events:auto;}
.float-text{font-size:14px;font-weight:600;white-space:nowrap;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:26px;}
}
@media (max-width:1023px){
  :root{--sp-section:clamp(52px,8vw,80px);}
  .nav-cards{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-actions .btn-sm{display:none;}
  .timeline{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;}
  .event-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .event-card:nth-child(3){margin-top:0;}
  .audience{grid-template-columns:1fr;gap:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;padding:0 16px calc(10px + env(safe-area-inset-bottom));
    min-height:64px;justify-content:space-between;
  }
  .float-text{font-size:13px;white-space:normal;}
}
@media (max-width:767px){
  .container,.container-wide{padding:0 16px;}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
  .hero-stats li strong{font-size:30px;}
  .spec-grid{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .event-grid{grid-template-columns:1fr;}
  .event-card:nth-child(2),.event-card:nth-child(3){margin-top:0;}
  .timeline{grid-template-columns:1fr;}
  .timeline-item{padding-top:30px;}
  .timeline-item::before{display:none;}
  .page-hero{border-radius:var(--r-lg);}
}
@media (max-width:480px){
  body{font-size:15px;}
  .event-body,.faq-item summary{padding-left:18px;padding-right:18px;}
  .faq-answer{padding-left:18px;padding-right:18px;}
  .spec-card{padding:18px;}
  .drawer-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
}

/* roulang page: category2 */
:root{
  --c-ink:#0E1116;
  --c-ink-2:#1A1F26;
  --c-accent:#C6FF3A;
  --c-accent-2:#FF5A1F;
  --c-bg:#F7F8F4;
  --c-surface:#FFFFFF;
  --c-surface-2:#F1F3EA;
  --c-line:#E4E7DC;
  --c-text:#14171C;
  --c-text-2:#5A6068;
  --c-text-3:#8A9099;
  --c-on-dark:#E8EBE2;
  --c-error:#D93025;
  --c-success:#1B9C5A;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:18px;
  --r-xl:24px;
  --r-pill:999px;
  --s-1:0 1px 2px rgba(14,17,22,.05),0 6px 18px rgba(14,17,22,.06);
  --s-2:0 10px 30px rgba(14,17,22,.12);
  --container:1200px;
  --container-wide:1280px;
  --read:760px;
  --sp-section:clamp(64px,9vw,112px);
  --ease:cubic-bezier(.2,.8,.2,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--c-text);text-decoration:none}
a:hover{color:var(--c-ink)}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
h1,h2,h3,h4,p,dl,dd,figure{margin:0}
h1{font-size:clamp(30px,4.4vw,54px);font-weight:800;line-height:1.15;letter-spacing:-.02em}
h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.25;letter-spacing:-.01em}
h3{font-size:21px;font-weight:700;line-height:1.4}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-ink);outline-offset:2px}

.container,.container-wide{width:100%;margin:0 auto;padding:0 20px}
.container{max-width:var(--container)}
.container-wide{max-width:var(--container-wide)}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--c-ink);color:var(--c-on-dark);
  padding:10px 18px;border-radius:0 0 var(--r-sm) 0;font-weight:700;
}
.skip-link:focus{left:0;color:var(--c-on-dark)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:700;font-size:15px;line-height:1;
  border-radius:var(--r-pill);padding:14px 26px;
  border:1.5px solid transparent;cursor:pointer;
  transition:background .25s var(--ease),color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.btn-primary{background:var(--c-accent);color:var(--c-ink)}
.btn-primary:hover{background:#B4F01F;color:var(--c-ink);transform:translateY(-1px);box-shadow:var(--s-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-primary:focus-visible{outline:2px solid var(--c-ink);outline-offset:2px}
.btn-ghost{background:transparent;border-color:var(--c-ink);color:var(--c-ink)}
.btn-ghost:hover{background:var(--c-ink);color:#fff}
.btn-ghost:active{transform:translateY(1px)}
.btn-ghost-on-dark{background:transparent;border-color:var(--c-accent);color:var(--c-accent)}
.btn-ghost-on-dark:hover{background:var(--c-accent);color:var(--c-ink)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{
  background:var(--c-surface-2);color:var(--c-text-3);
  border-color:var(--c-line);cursor:not-allowed;transform:none;box-shadow:none;
}
.link-underline{
  display:inline-block;font-weight:700;color:var(--c-ink);
  border-bottom:2px solid var(--c-ink);padding-bottom:2px;
  transition:border-color .25s var(--ease),color .25s var(--ease);
}
.link-underline:hover{border-color:var(--c-accent);color:var(--c-ink)}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:12px 16px 0}
.site-header .container-wide{padding:0}
.nav-panel{
  display:flex;align-items:center;gap:18px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);box-shadow:var(--s-1);
  padding:10px 12px 10px 18px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:-.01em;color:var(--c-ink);white-space:nowrap}
.brand:hover{color:var(--c-ink)}
.brand-mark{display:inline-flex;flex:0 0 auto;width:26px;height:26px}
.brand-mark svg{width:26px;height:26px;display:block}
.nav-cards{display:flex;gap:8px;margin-left:auto}
.nav-card{
  position:relative;display:inline-flex;align-items:center;
  background:var(--c-surface-2);border-radius:var(--r-sm);
  padding:8px 14px;font-size:14px;font-weight:600;color:var(--c-text);
  transition:background .25s var(--ease),color .25s var(--ease);
}
.nav-card:hover{background:var(--c-ink);color:var(--c-on-dark)}
.nav-card.is-active{box-shadow:inset 0 -2px 0 var(--c-accent)}
.nav-card.is-active:hover{color:var(--c-on-dark)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--r-sm);
  background:var(--c-surface-2);color:var(--c-ink);
  transition:background .25s var(--ease),color .25s var(--ease);
}
.nav-toggle svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.9}
.nav-toggle:hover{background:var(--c-ink);color:var(--c-on-dark)}

.nav-drawer{
  position:fixed;inset:0;z-index:90;
  background:rgba(14,17,22,.55);
  opacity:0;visibility:hidden;
  transition:opacity .3s var(--ease),visibility .3s var(--ease);
}
.nav-drawer.is-open{opacity:1;visibility:visible}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:min(90vw,380px);
  background:var(--c-surface);padding:22px 20px 26px;
  display:flex;flex-direction:column;gap:16px;
  transform:translateX(16px);transition:transform .3s var(--ease);
  overflow-y:auto;
}
.nav-drawer.is-open .drawer-panel{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{
  width:40px;height:40px;border-radius:var(--r-sm);background:var(--c-surface-2);
  display:inline-flex;align-items:center;justify-content:center;font-size:20px;color:var(--c-ink);
  transition:background .25s var(--ease),color .25s var(--ease);
}
.drawer-close:hover{background:var(--c-ink);color:var(--c-on-dark)}
.drawer-title{font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--c-text-3)}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.drawer-card{
  background:var(--c-surface-2);border-radius:var(--r-sm);
  padding:14px 12px;font-size:15px;font-weight:600;color:var(--c-text);
  transition:background .25s var(--ease),color .25s var(--ease);
}
.drawer-card:hover{background:var(--c-ink);color:var(--c-on-dark)}
.drawer-card.is-active{box-shadow:inset 0 -2px 0 var(--c-accent)}
.drawer-note{font-size:13.5px;color:var(--c-text-2);line-height:1.7}
.drawer-foot{margin-top:auto;display:grid;gap:10px}

/* ---------- 页头 BANNER（浅色） ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--c-bg);
  border-bottom:1px solid var(--c-line);
  padding:clamp(46px,7vw,86px) 0 clamp(40px,6vw,72px);
}
.page-hero::before{
  content:"";position:absolute;top:0;left:0;
  width:clamp(96px,14vw,168px);height:clamp(96px,14vw,168px);
  background:var(--c-accent);
  clip-path:polygon(0 0,100% 0,0 100%);
}
.page-hero::after{
  content:"";position:absolute;top:0;right:0;width:min(46vw,520px);height:100%;
  background-image:
    repeating-linear-gradient(112deg,rgba(14,17,22,.055) 0 1px,transparent 1px 13px),
    radial-gradient(circle at 78% 22%,rgba(14,17,22,.05) 0 2px,transparent 2px),
    radial-gradient(circle at 62% 68%,rgba(14,17,22,.04) 0 2px,transparent 2px);
  background-size:auto,132px 132px,180px 180px;
  pointer-events:none;
}
.breadcrumb{
  position:relative;display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13.5px;color:var(--c-text-3);margin-bottom:22px;
}
.breadcrumb a{color:var(--c-text-2);font-weight:600}
.breadcrumb a:hover{color:var(--c-ink)}
.breadcrumb span[aria-current]{color:var(--c-text);font-weight:700}

.page-hero-grid{
  position:relative;display:grid;grid-template-columns:1.05fr .95fr;
  gap:clamp(26px,4vw,56px);align-items:center;
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--c-surface-2);border:1px solid var(--c-line);
  border-radius:var(--r-pill);padding:6px 14px;
  font-size:13px;font-weight:700;color:var(--c-text-2);margin-bottom:16px;
}
.hero-tag::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--c-accent-2)}
.page-hero h1{margin-bottom:16px}
.page-hero-lead{font-size:17px;color:var(--c-text-2);max-width:560px;line-height:1.85}
.page-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;margin-top:34px;padding-top:24px;border-top:1px solid var(--c-line);
}
.hero-stats dt{font-size:13px;color:var(--c-text-3);font-weight:700;margin-bottom:4px}
.hero-stats dd{font-size:clamp(22px,2.4vw,30px);font-weight:900;color:var(--c-ink);letter-spacing:-.02em;line-height:1.1}
.hero-stats dd span{font-size:13px;font-weight:700;color:var(--c-text-2);margin-left:3px;letter-spacing:0}

.page-hero-media{position:relative}
.page-hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-xl);border:1px solid var(--c-line);box-shadow:var(--s-1);
}
.media-badge{
  position:absolute;left:16px;bottom:16px;
  background:var(--c-accent);color:var(--c-ink);
  font-size:13px;font-weight:800;border-radius:var(--r-pill);padding:8px 16px;
}
.media-corner{
  position:absolute;right:-8px;top:-8px;
  background:var(--c-accent-2);color:#fff;
  font-size:12px;font-weight:800;letter-spacing:.02em;
  border-radius:var(--r-pill);padding:6px 12px;
}

/* ---------- 布局：左目录 + 右内容 ---------- */
.course-shell{padding:var(--sp-section) 0}
.course-layout{display:grid;grid-template-columns:256px minmax(0,1fr);gap:clamp(28px,4vw,56px);align-items:start}
.toc{position:sticky;top:96px}
.toc-inner{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);box-shadow:var(--s-1);padding:22px 18px;
}
.toc-title{font-size:12.5px;font-weight:800;letter-spacing:.1em;color:var(--c-text-3);margin-bottom:12px}
.toc-list{display:grid;gap:6px}
.toc-list a{
  display:block;padding:10px 12px;border-radius:var(--r-sm);
  font-size:14.5px;font-weight:600;color:var(--c-text-2);
  transition:background .25s var(--ease),color .25s var(--ease);
}
.toc-list a:hover{background:var(--c-surface-2);color:var(--c-ink)}
.toc-list a.is-current{background:var(--c-ink);color:var(--c-on-dark)}
.toc-cta{display:block;margin-top:16px;text-align:center}
.toc-meta{margin-top:16px;padding-top:14px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-text-3);line-height:1.7}

.course-body{display:grid;gap:clamp(24px,3.4vw,40px)}

/* ---------- 图文模块 ---------- */
.feature{
  border-radius:var(--r-xl);
  padding:clamp(20px,3vw,32px);
  display:grid;grid-template-columns:1fr 1fr;
  gap:clamp(22px,3.6vw,44px);align-items:center;
  scroll-margin-top:110px;
}
.feature.is-alt{background:var(--c-surface-2)}
.feature.is-reverse .feature-media{order:-1}
.feature-media{position:relative}
.feature-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-md);border:1px solid var(--c-line);
}
.feature-kicker{
  display:inline-block;background:rgba(198,255,58,.4);color:var(--c-ink);
  font-size:12.5px;font-weight:800;border-radius:var(--r-pill);
  padding:5px 13px;margin-bottom:14px;
}
.feature-title{margin-bottom:12px}
.feature-text{color:var(--c-text-2);font-size:16px}
.feature-list{margin-top:16px;display:grid;gap:10px}
.feature-list li{
  position:relative;padding-left:20px;font-size:15px;color:var(--c-text-2);
}
.feature-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;background:var(--c-accent);border-radius:2px;
}
.step-list{margin-top:18px;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.step-item{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);padding:14px 16px;
}
.step-item b{display:block;font-size:13px;font-weight:800;color:var(--c-accent-2);letter-spacing:.06em}
.step-item span{display:block;font-size:14.5px;font-weight:600;color:var(--c-ink);margin-top:4px}
.step-item em{display:block;font-style:normal;font-size:13.5px;color:var(--c-text-2);margin-top:4px;line-height:1.7}

/* ---------- 规格卡 ---------- */
.spec-head{max-width:620px;margin-bottom:22px}
.spec-head p{color:var(--c-text-2);margin-top:10px}
.spec-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.spec-card{
  background:var(--c-surface-2);border-radius:var(--r-md);
  padding:18px 20px;border:1px solid transparent;
  transition:border-color .25s var(--ease),background .25s var(--ease);
  scroll-margin-top:110px;
}
.spec-card:hover{border-color:var(--c-ink);background:var(--c-surface)}
.spec-label{font-size:12.5px;font-weight:800;letter-spacing:.06em;color:var(--c-text-3)}
.spec-value{font-size:17px;font-weight:700;color:var(--c-ink);margin-top:6px}
.spec-note{font-size:13.5px;color:var(--c-text-2);margin-top:4px;line-height:1.7}

/* ---------- FAQ ---------- */
.faq-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);box-shadow:var(--s-1);overflow:hidden;
  scroll-margin-top:110px;
}
.faq-card details{border-bottom:1px solid var(--c-line)}
.faq-card details:last-child{border-bottom:0}
.faq-card summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 26px;font-size:17px;font-weight:700;color:var(--c-ink);
  transition:background .25s var(--ease),box-shadow .25s var(--ease);
}
.faq-card summary::-webkit-details-marker{display:none}
.faq-card summary::after{
  content:"+";font-size:22px;font-weight:400;line-height:1;color:var(--c-text-3);
  transition:transform .25s var(--ease),color .25s var(--ease);
}
.faq-card details[open] summary{box-shadow:inset 3px 0 0 var(--c-accent);background:var(--c-surface-2)}
.faq-card details[open] summary::after{content:"−";transform:rotate(180deg);color:var(--c-ink)}
.faq-card summary:hover{background:var(--c-surface-2)}
.faq-answer{padding:0 26px 22px;font-size:15px;line-height:1.9;color:var(--c-text-2);max-width:640px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--c-ink);color:var(--c-on-dark);
  padding:var(--sp-section) 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:
    repeating-linear-gradient(112deg,rgba(198,255,58,.07) 0 1px,transparent 1px 15px),
    radial-gradient(circle at 18% 26%,rgba(198,255,58,.22) 0 2px,transparent 2px),
    radial-gradient(circle at 74% 72%,rgba(232,235,226,.18) 0 2px,transparent 2px);
  background-size:auto,220px 220px,260px 260px;
  pointer-events:none;
}
.cta-inner{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(24px,4vw,56px);align-items:center}
.cta-band h2{color:#fff;margin-bottom:14px}
.cta-band p{color:#C9CFC6;font-size:16.5px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.cta-panel{
  background:var(--c-ink-2);border:1px solid rgba(232,235,226,.14);
  border-radius:var(--r-lg);padding:24px;
  box-shadow:inset 0 0 0 1px rgba(198,255,58,.06);
}
.cta-panel .panel-title{font-size:14px;font-weight:800;color:var(--c-accent);letter-spacing:.06em;margin-bottom:14px}
.cta-panel ul{display:grid;gap:12px}
.cta-panel li{display:flex;gap:10px;font-size:14.5px;color:var(--c-on-dark);line-height:1.7}
.cta-panel li::before{content:"";flex:0 0 auto;width:8px;height:8px;margin-top:9px;background:var(--c-accent);border-radius:2px}
.cta-panel .panel-foot{margin-top:18px;padding-top:16px;border-top:1px solid rgba(232,235,226,.14);font-size:14px;color:#C9CFC6}
.cta-panel .panel-foot strong{display:block;font-size:22px;font-weight:900;color:#fff;letter-spacing:-.01em}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-ink);color:var(--c-on-dark);
  border-top:4px solid var(--c-accent);
  padding:clamp(48px,7vw,74px) 0 24px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:clamp(24px,3vw,40px)}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:#fff}
.footer-brand .brand-mark{background:var(--c-accent);border-radius:8px;padding:3px;width:28px;height:28px}
.footer-brand .brand-mark svg{width:22px;height:22px}
.footer-desc{margin-top:14px;font-size:14.5px;color:#C9CFC6;line-height:1.8;max-width:340px}
.footer-contact{margin-top:16px;display:grid;gap:4px;font-size:13.5px;color:var(--c-text-3)}
.footer-contact strong{font-size:20px;font-weight:900;color:var(--c-accent);letter-spacing:.01em}
.footer-title{font-size:14px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14.5px;color:#C9CFC6;transition:color .25s var(--ease)}
.footer-links a:hover{color:var(--c-accent)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  margin-top:clamp(28px,4vw,42px);padding-top:20px;
  border-top:1px solid rgba(232,235,226,.14);
  font-size:13px;color:var(--c-text-3);
}

/* ---------- 底部固定转化条 ---------- */
.sticky-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;
  display:flex;align-items:center;gap:14px;
  background:var(--c-ink);color:var(--c-on-dark);
  border:1px solid rgba(232,235,226,.16);
  border-radius:var(--r-pill);padding:10px 12px 10px 22px;
  box-shadow:var(--s-2);
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .35s var(--ease),transform .35s var(--ease);
}
.sticky-cta.is-visible{opacity:1;transform:none;pointer-events:auto}
.sticky-cta .sticky-text{font-size:14px;font-weight:600;white-space:nowrap}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .nav-card{padding:8px 12px;font-size:13.5px}
}
@media (max-width:1023px){
  .nav-cards{display:none}
  .nav-toggle{display:inline-flex}
  .nav-panel{padding:10px 10px 10px 16px}
  .nav-actions .btn{display:none}
  .page-hero-grid{grid-template-columns:1fr;gap:28px}
  .page-hero-media{order:-1}
  .course-layout{grid-template-columns:1fr}
  .toc{position:static;top:auto}
  .toc-inner{padding:16px 14px}
  .toc-list{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;-webkit-overflow-scrolling:touch}
  .toc-list li{flex:0 0 auto}
  .toc-list a{white-space:nowrap;background:var(--c-surface-2);padding:9px 14px}
  .toc-list a.is-current{background:var(--c-ink);color:var(--c-on-dark)}
  .toc-cta,.toc-meta{display:none}
  .feature{grid-template-columns:1fr;gap:22px}
  .feature.is-reverse .feature-media{order:0}
  .cta-inner{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .site-footer{padding-bottom:96px}
  .sticky-cta{
    left:0;right:0;bottom:0;border-radius:0;border-left:0;border-right:0;border-bottom:0;
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    justify-content:space-between;gap:10px;
    opacity:1;transform:none;pointer-events:auto;
  }
  .sticky-cta .sticky-text{font-size:13.5px}
}
@media (max-width:767px){
  :root{--sp-section:clamp(44px,10vw,64px)}
  body{font-size:16px}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
  .spec-grid{grid-template-columns:1fr}
  .step-list{grid-template-columns:1fr}
  .feature{padding:20px}
  .faq-card summary{padding:18px 20px;font-size:16px}
  .faq-answer{padding:0 20px 20px}
}
@media (max-width:479px){
  .container,.container-wide{padding:0 16px}
  .page-hero{padding:60px 0 40px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{justify-content:flex-start}
  .hero-stats dd{font-size:22px}
  .feature{padding:18px}
}