/* roulang page: index */
:root{
  --ink:#0B2B24;
  --ink-deep:#08211C;
  --ink-soft:#123A31;
  --orange:#FF6B35;
  --orange-deep:#E85A26;
  --lime:#D8F34A;
  --bg:#F5F6F2;
  --card:#FFFFFF;
  --text:#101614;
  --muted:#5C6B65;
  --soft:#8A968F;
  --line:#E2E7E0;
  --line-dark:rgba(255,255,255,.14);
  --invert:#F2F5F0;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(11,43,36,.06),0 14px 30px -20px rgba(11,43,36,.38);
  --sh-2:0 2px 5px rgba(11,43,36,.09),0 24px 44px -22px rgba(11,43,36,.46);
  --gap-section:clamp(56px,7vw,104px);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Barlow Condensed","Oswald","Arial Narrow",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-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--ink);text-decoration:none;transition:color .18s ease-out,border-color .18s ease-out,background-color .18s ease-out}
a:hover{color:var(--orange)}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.01em;line-height:1.32}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  height:66px;display:flex;align-items:center;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background-color .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.site-header.is-scrolled{
  background:var(--ink);
  border-bottom-color:var(--line-dark);
  box-shadow:0 12px 30px -24px rgba(8,33,28,.9);
}
.nav-inner{display:flex;align-items:center;gap:28px;width:100%}
.brand{display:flex;align-items:center;gap:10px;color:var(--invert);flex:0 0 auto}
.brand:hover{color:var(--invert)}
.brand-mark{width:9px;height:22px;background:var(--lime);border-radius:3px;transform:skewX(-12deg);flex:0 0 auto}
.brand-txt{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:16px;font-weight:700;letter-spacing:.01em;color:var(--invert);white-space:nowrap}
.brand-sub{font-size:11px;color:rgba(242,245,240,.58);letter-spacing:.02em}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-links a{
  position:relative;display:inline-block;padding:8px 14px;border-radius:8px;
  font-size:14.5px;color:rgba(242,245,240,.8);
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--orange);transform:scaleX(0);transform-origin:left;transition:transform .18s ease-out;
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:#fff;font-weight:600}
.nav-links a.active::after{transform:scaleX(1)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.nav-search{
  display:flex;align-items:center;gap:8px;height:38px;padding:0 14px;
  border:1px solid rgba(242,245,240,.22);border-radius:999px;
  color:rgba(242,245,240,.6);font-size:13.5px;min-width:172px;
  transition:border-color .18s ease-out,color .18s ease-out;
}
.nav-search:hover{border-color:var(--orange);color:#fff}
.nav-search svg{flex:0 0 auto}
.btn-nav{
  display:inline-flex;align-items:center;justify-content:center;
  height:38px;padding:0 18px;border-radius:var(--r-btn);
  background:var(--orange);color:#fff;font-size:14px;font-weight:600;
  border:1px solid var(--orange);
  transition:background-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-nav:hover{background:var(--orange-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-1)}
.nav-burger{
  display:none;width:40px;height:38px;border:1px solid rgba(242,245,240,.24);
  background:transparent;border-radius:10px;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-burger span{display:block;width:16px;height:2px;background:var(--invert);border-radius:2px}

/* 移动端抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(8,33,28,.55);opacity:0;visibility:hidden;z-index:1050;
  transition:opacity .2s ease-out,visibility .2s ease-out;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:302px;max-width:86vw;z-index:1055;
  background:var(--ink);padding:24px 22px;display:flex;flex-direction:column;
  transform:translateX(102%);transition:transform .22s ease-out;
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.drawer-close{width:36px;height:36px;border:1px solid var(--line-dark);background:transparent;color:var(--invert);border-radius:9px;font-size:18px;line-height:1}
.drawer-links{display:flex;flex-direction:column;gap:6px}
.drawer-links a{color:rgba(242,245,240,.86);font-size:15px;padding:12px 12px;border-radius:10px;border-left:3px solid transparent}
.drawer-links a:hover{background:rgba(255,255,255,.06);color:#fff}
.drawer-links a.active{border-left-color:var(--orange);color:#fff;font-weight:600;background:rgba(255,255,255,.05)}
.drawer-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line-dark)}
.drawer-foot p{font-size:12px;line-height:1.7;color:rgba(242,245,240,.55);margin:14px 0 0}

/* ============ 按钮 ============ */
.btn-main,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border-radius:var(--r-btn);font-size:15.5px;font-weight:600;
  transition:background-color .18s ease-out,color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.btn-main{background:var(--orange);color:#fff;border:1px solid var(--orange)}
.btn-main:hover{background:var(--orange-deep);border-color:var(--orange-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-main:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--invert);border:1px solid rgba(242,245,240,.4)}
.btn-ghost:hover{background:rgba(255,255,255,.08);color:#fff;transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-outline-ink{background:#fff;color:var(--ink);border:1px solid var(--ink)}
.btn-outline-ink:hover{background:var(--ink);color:#fff;transform:translateY(-1px)}
.btn-sm{height:42px;padding:0 20px;font-size:14.5px}

/* ============ 首屏 ============ */
.hero{
  position:relative;background:var(--ink);color:var(--invert);
  padding:calc(66px + 64px) 0 clamp(56px,7vw,96px);
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;right:-160px;top:-120px;width:620px;height:620px;border-radius:50%;
  border:1px solid rgba(216,243,74,.10);
}
.hero::after{
  content:"";position:absolute;left:-220px;bottom:-320px;width:760px;height:760px;border-radius:50%;
  border:1px solid rgba(255,255,255,.08);
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,64px);align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;margin-bottom:22px;
  border-radius:999px;border:1px solid rgba(216,243,74,.35);background:rgba(216,243,74,.08);
  font-size:12px;font-weight:600;letter-spacing:.02em;color:var(--lime);width:fit-content;
}
.hero h1{
  color:#fff;font-size:clamp(30px,4.2vw,52px);font-weight:800;letter-spacing:-.01em;line-height:1.22;
  margin-bottom:20px;
}
.hero-sub{font-size:clamp(16px,1.3vw,18.5px);color:rgba(242,245,240,.78);max-width:34em;margin-bottom:32px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px 26px;font-size:13.5px;color:rgba(242,245,240,.66)}
.hero-trust li{display:flex;align-items:center;gap:8px}
.hero-trust li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--lime);flex:0 0 auto}
.hero-visual{position:relative}
.hero-visual img{width:100%;height:clamp(240px,48vw,420px);object-fit:cover;border-radius:18px;box-shadow:var(--sh-2)}
.login-panel{
  position:absolute;left:-14px;bottom:-24px;width:236px;background:#fff;border-radius:14px;
  padding:16px 18px 18px;box-shadow:var(--sh-2);
}
.lp-head{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--ink);margin-bottom:14px}
.lp-head i{width:8px;height:8px;border-radius:50%;background:var(--lime);display:block}
.lp-line{height:10px;border-radius:999px;background:#EDF0EA;margin-bottom:10px}
.lp-line.short{width:62%}
.lp-btn{height:34px;border-radius:9px;background:var(--ink);margin-top:14px}

/* ============ 通用板块 ============ */
.section{padding:var(--gap-section) 0}
.section-alt{background:#EFF1EB}
.section-head{margin-bottom:clamp(32px,4vw,40px)}
.section-tag{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.06em;
  color:var(--orange);margin-bottom:12px;
}
.section-head h2{font-size:clamp(24px,2.6vw,34px);margin-bottom:14px}
.section-head p{color:var(--muted);max-width:62ch;font-size:15.5px}
.head-split{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}
.link-more{font-size:14.5px;font-weight:600;color:var(--ink);display:inline-flex;align-items:center;gap:6px}
.link-more span{transition:transform .18s ease-out}
.link-more:hover span{transform:translateX(4px)}
.link-more:hover{color:var(--orange)}

/* ============ 痛点提问 ============ */
.pain-grid{display:grid;grid-template-columns:4fr 8fr;gap:clamp(28px,4vw,56px);align-items:start}
.pain-left{position:sticky;top:96px}
.pain-left h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:16px}
.pain-left p{color:var(--muted);font-size:15px}
.pain-list{border-top:1px solid var(--line)}
.pain-item{
  display:grid;grid-template-columns:64px 1fr;gap:16px;
  padding:24px 18px;border-bottom:1px solid var(--line);
  transition:background-color .18s ease-out;
}
.pain-item:hover{background:#fff}
.pain-idx{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:30px;font-weight:600;
  color:var(--orange);line-height:1;letter-spacing:.02em;
}
.pain-item h3{font-size:17.5px;font-weight:600;margin-bottom:8px}
.pain-item p{color:var(--muted);font-size:14.5px;margin:0}

/* ============ 方案卡片 ============ */
.plan-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(20px,3vw,32px)}
.plan-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.plan-card:hover{transform:translateY(-3px);border-color:rgba(11,43,36,.22);box-shadow:var(--sh-2)}
.plan-card.offset{margin-top:34px}
.plan-icon{
  width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,107,53,.35);
  background:rgba(255,107,53,.1);color:var(--orange);
  display:flex;align-items:center;justify-content:center;margin-bottom:20px;
}
.plan-idx{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:13px;font-weight:600;
  letter-spacing:.14em;color:var(--soft);display:block;margin-bottom:10px;
}
.plan-card h3{font-size:20px;margin-bottom:12px}
.plan-card p{color:var(--muted);font-size:15px;margin-bottom:18px}

/* ============ 数据带 ============ */
.stats{background:var(--ink);color:var(--invert);padding:clamp(48px,6vw,80px) 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:0 26px;border-left:1px solid var(--line-dark)}
.stat:first-child{border-left:0;padding-left:0}
.stat-num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;font-weight:600;
  font-size:clamp(40px,5vw,64px);line-height:1;color:#fff;display:flex;align-items:baseline;gap:6px;
}
.stat-num sup{font-size:.36em;color:var(--lime);top:-1.1em;position:relative;font-weight:600}
.stat-label{margin-top:14px;font-size:13px;color:rgba(242,245,240,.66);line-height:1.7}

/* ============ 最新信息 ============ */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(18px,2.4vw,28px)}
.post-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.post-card:hover{transform:translateY(-2px);border-color:rgba(11,43,36,.2);box-shadow:var(--sh-2)}
.post-cover{display:block;overflow:hidden;aspect-ratio:16/9;background:#E7EAE3}
.post-cover img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s ease-out}
.post-card:hover .post-cover img{transform:scale(1.03)}
.post-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1 1 auto}
.badge-soft{
  display:inline-block;align-self:flex-start;padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  color:var(--orange);background:rgba(255,107,53,.1);border:1px solid rgba(255,107,53,.28);
  margin-bottom:14px;
}
.badge-ink{
  display:inline-block;align-self:flex-start;padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  color:var(--ink);background:rgba(11,43,36,.07);border:1px solid rgba(11,43,36,.16);
  margin-bottom:14px;
}
.post-title{font-size:17.5px;line-height:1.55;margin-bottom:12px}
.post-title a{color:var(--ink)}
.post-title a:hover{color:var(--orange)}
.post-sum{font-size:14px;color:var(--muted);line-height:1.75;margin:0 0 18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--soft);
}
.post-foot .arrow{font-size:16px;color:var(--ink);transition:transform .18s ease-out,color .18s ease-out}
.post-card:hover .post-foot .arrow{transform:translateX(4px);color:var(--orange)}
.empty-box{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  border:1px dashed var(--line);border-radius:var(--r-card);background:#fff;text-align:center;padding:32px;
}
.empty-box p{color:var(--muted);font-size:15px;margin:0}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);position:relative}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--orange);
  transform:scaleY(0);transform-origin:top;transition:transform .2s ease-out;
}
.faq-item:has(.collapse.show)::before{transform:scaleY(1)}
.faq-btn{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:transparent;border:0;padding:24px 18px 24px 20px;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);
  transition:color .18s ease-out,padding-left .18s ease-out;
}
.faq-btn:hover{color:var(--orange)}
.faq-btn:not(.collapsed){color:var(--ink);padding-left:26px}
.faq-btn .faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:16px;color:var(--ink);
  transition:transform .2s ease-out,border-color .2s ease-out,color .2s ease-out;
}
.faq-btn .faq-icon::before{content:"+"}
.faq-btn:not(.collapsed) .faq-icon{transform:rotate(180deg);border-color:var(--orange);color:var(--orange)}
.faq-btn:not(.collapsed) .faq-icon::before{content:"−"}
.faq-a{padding:0 60px 26px 20px;color:var(--muted);font-size:15px;line-height:1.85}

/* ============ 转化区 ============ */
.convert-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,56px);align-items:start}
.convert-left h2{font-size:clamp(24px,2.6vw,34px);margin-bottom:16px}
.convert-left p{color:var(--muted);font-size:15.5px;margin-bottom:26px}
.tick-list li{display:flex;gap:12px;padding:14px 0;border-top:1px solid var(--line);font-size:15px;color:var(--ink)}
.tick-list li:last-child{border-bottom:1px solid var(--line)}
.tick-list li::before{
  content:"";flex:0 0 auto;width:18px;height:18px;margin-top:6px;border-radius:5px;
  background:rgba(255,107,53,.12);border:1px solid rgba(255,107,53,.35);
}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1)}
.form-card h3{font-size:19px;margin-bottom:6px}
.form-card .form-hint{font-size:13.5px;color:var(--soft);margin-bottom:22px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#FBFCFA;font-size:14.5px;color:var(--text);
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out;
}
.field textarea{height:104px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--ink);background:#fff;box-shadow:0 0 0 4px rgba(11,43,36,.08);
}
.field input::placeholder,.field textarea::placeholder{color:var(--soft)}
.check-row{display:flex;align-items:flex-start;gap:10px;margin:18px 0 20px}
.check-row input{width:17px;height:17px;margin-top:4px;flex:0 0 auto;accent-color:var(--ink)}
.check-row span{font-size:12.5px;line-height:1.7;color:var(--soft)}
.btn-submit{
  width:100%;height:50px;border:1px solid var(--orange);border-radius:var(--r-btn);
  background:var(--orange);color:#fff;font-size:15.5px;font-weight:600;
  transition:background-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-submit:hover{background:var(--orange-deep);border-color:var(--orange-deep);transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-submit:active{transform:translateY(0)}
.form-note{margin:14px 0 0;font-size:12.5px;color:var(--soft)}

/* ============ 隐私说明 ============ */
.privacy{
  display:flex;gap:14px;align-items:flex-start;
  border:1px dashed var(--line);background:#fff;border-radius:var(--r-card);
  padding:20px 24px;font-size:13px;line-height:1.8;color:var(--muted);
}
.privacy svg{flex:0 0 auto;margin-top:3px;color:var(--ink)}
.privacy strong{color:var(--ink)}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(242,245,240,.72);padding:clamp(48px,6vw,72px) 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:clamp(24px,3vw,48px)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-name{font-size:16.5px}
.footer-brand .brand-sub{color:rgba(242,245,240,.5)}
.site-footer p{font-size:13.5px;line-height:1.85;color:rgba(242,245,240,.62)}
.footer-col h4{font-size:14px;font-weight:600;color:var(--orange);margin-bottom:16px}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:13.5px;color:rgba(242,245,240,.72)}
.footer-col a:hover{color:#fff}
.qr-box{
  width:96px;height:96px;border-radius:12px;background:rgba(255,255,255,.06);
  border:1px solid var(--line-dark);display:flex;align-items:center;justify-content:center;
  font-size:11px;color:rgba(242,245,240,.5);margin-top:16px;text-align:center;line-height:1.5;
}
.footer-bottom{
  margin-top:clamp(32px,4vw,52px);padding:22px 0;border-top:1px solid var(--line-dark);
  text-align:center;font-size:12.5px;color:rgba(242,245,240,.5);
}

/* ============ 浮起入口与模态 ============ */
.float-entry{
  position:fixed;right:24px;bottom:24px;z-index:1035;
  display:inline-flex;align-items:center;gap:9px;height:52px;padding:0 22px;
  border:1px solid var(--orange);border-radius:999px;background:var(--orange);color:#fff;
  font-size:14.5px;font-weight:600;box-shadow:var(--sh-2);
  transition:background-color .18s ease-out,transform .18s ease-out;
}
.float-entry:hover{background:var(--orange-deep);border-color:var(--orange-deep);color:#fff;transform:translateY(-2px)}
.modal-content{border:0;border-radius:18px;box-shadow:var(--sh-2)}
.modal-body{padding:28px}
.modal-title{font-size:19px;color:var(--ink)}
.modal-close-x{width:34px;height:34px;border:1px solid var(--line);background:#fff;border-radius:9px;color:var(--soft);line-height:1}

/* ============ 响应式 ============ */
@media (max-width:1240px){
  .nav-search{min-width:0;width:38px;padding:0;justify-content:center}
  .nav-search span{display:none}
}
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-visual img{height:clamp(240px,52vw,360px)}
  .login-panel{left:auto;right:14px;bottom:-20px;width:210px}
  .pain-grid{grid-template-columns:1fr;gap:28px}
  .pain-left{position:static}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:991px){
  .nav-links{display:none}
  .nav-burger{display:flex}
  .plan-grid{grid-template-columns:1fr}
  .plan-card.offset{margin-top:0}
  .stats-grid{grid-template-columns:1fr 1fr;gap:0}
  .stat{padding:22px 20px;border-left:0;border-top:1px solid var(--line-dark)}
  .stat:nth-child(odd){padding-left:0}
  .stat:nth-child(1),.stat:nth-child(2){border-top:0}
  .convert-grid{grid-template-columns:1fr}
}
@media (max-width:768px){
  .nav-right{gap:10px}
  .btn-nav{display:none}
  .hero{padding-top:calc(66px + 40px)}
  .post-grid{grid-template-columns:1fr}
  .pain-item{grid-template-columns:48px 1fr;gap:12px;padding:20px 12px}
  .pain-idx{font-size:24px}
  .faq-btn{font-size:15.5px;padding:20px 12px 20px 14px}
  .faq-a{padding:0 40px 22px 14px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .float-entry{right:16px;bottom:16px;height:48px;padding:0 18px;font-size:13.5px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .hero h1{font-size:28px}
  .hero-cta .btn-main,.hero-cta .btn-ghost{width:100%}
  .stats-grid{grid-template-columns:1fr}
  .stat{padding:20px 0;border-top:1px solid var(--line-dark)}
  .stat:nth-child(1){border-top:0}
  .login-panel{position:static;width:100%;margin-top:16px;box-shadow:var(--sh-1)}
  .form-card{padding:22px}
  .modal-body{padding:22px}
}

/* roulang page: category1 */
:root{
  --ink:#0B2B24;
  --ink-2:#123A31;
  --orange:#FF6B35;
  --lime:#D8F34A;
  --bg:#F5F6F2;
  --card:#FFFFFF;
  --text:#101614;
  --text-2:#5C6B65;
  --text-3:#8A968F;
  --border:#E2E7E0;
  --line-dark:rgba(255,255,255,.14);
  --inverse:#F2F5F0;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(11,43,36,.06), 0 14px 30px -20px rgba(11,43,36,.38);
  --sh-2:0 2px 5px rgba(11,43,36,.09), 0 24px 46px -24px rgba(11,43,36,.52);
  --sec-pad:clamp(56px,7vw,104px);
  --num-font:"Barlow Condensed","Oswald","Arial Narrow",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .18s ease-out,border-color .18s ease-out;}
a:hover{color:var(--orange);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.35;letter-spacing:-.01em;}
h1{font-size:clamp(30px,4.2vw,52px);font-weight:800;}
h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;}
h3{font-size:20px;font-weight:600;}
p{margin:0 0 1.15em;}
ul{margin:0;padding:0;list-style:none;}
.container{max-width:1240px;width:100%;padding-inline:20px;margin-inline:auto;}
.num{font-family:var(--num-font);font-variant-numeric:tabular-nums;letter-spacing:.02em;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}

/* ---------- 通用组件 ---------- */
.btn-main,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease-out,background-color .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out,color .18s ease-out;
}
.btn-main{background:var(--orange);color:#fff;box-shadow:var(--sh-1);}
.btn-main:hover{background:#EA5A26;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-main:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:#fff;border-color:var(--orange);color:var(--orange);transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-ghost:active{transform:translateY(0);}
.btn-main:disabled,.btn-ghost:disabled{opacity:.45;transform:none;box-shadow:none;cursor:not-allowed;}
.btn-sm{padding:10px 18px;font-size:14px;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--ink);}
.link-more::after{content:"→";transition:transform .18s ease-out;display:inline-block;}
.link-more:hover{color:var(--orange);}
.link-more:hover::after{transform:translateX(4px);}
.badge-soft{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.02em;
  background:rgba(255,107,53,.1);border:1px solid rgba(255,107,53,.35);color:#D94F1C;
}
.badge-ink{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.02em;
  background:rgba(11,43,36,.08);border:1px solid rgba(11,43,36,.24);color:var(--ink);
}
.sec{padding-block:var(--sec-pad);}
.sec-head{max-width:760px;margin-bottom:clamp(32px,4vw,44px);}
.sec-head .kicker{
  display:inline-block;font-size:13px;font-weight:600;color:var(--orange);
  letter-spacing:.14em;margin-bottom:12px;
}
.sec-head p{margin:14px 0 0;color:var(--text-2);font-size:16px;}
.hr-line{height:1px;background:var(--border);border:0;margin:0;}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:transparent;border-bottom:1px solid transparent;
  transition:background-color .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.site-header.is-stuck{background:var(--ink);border-bottom-color:var(--line-dark);box-shadow:0 10px 26px -22px rgba(0,0,0,.75);}
.site-header .container{display:flex;align-items:center;gap:28px;height:66px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:26px;height:26px;border-radius:8px;background:linear-gradient(140deg,var(--orange) 0 55%,var(--lime) 55% 100%);display:inline-block;}
.brand-txt{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:16px;font-weight:700;color:#fff;letter-spacing:.01em;}
.brand-sub{font-size:11px;color:rgba(242,245,240,.68);letter-spacing:.04em;}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:12px;}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:rgba(242,245,240,.86);padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--orange);
  transform:scaleX(0);transform-origin:left;transition:transform .18s ease-out;
}
.nav-links a:hover{color:#fff;}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:#fff;font-weight:700;}
.nav-links a.active::after{transform:scaleX(1);}
.nav-links a.active::before{
  content:"";position:absolute;left:-12px;top:50%;width:5px;height:5px;margin-top:-2px;
  border-radius:50%;background:var(--orange);
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:42px;height:38px;border-radius:10px;border:1px solid var(--line-dark);
  background:rgba(255,255,255,.08);cursor:pointer;padding:9px 10px;
}
.nav-toggle span{display:block;height:2px;background:#fff;border-radius:2px;margin-bottom:5px;}
.nav-toggle span:last-child{margin-bottom:0;}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,43,36,.55);z-index:1050;
  opacity:0;visibility:hidden;transition:opacity .2s ease-out,visibility .2s ease-out;
}
.drawer-mask.show{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(330px,86vw);z-index:1100;background:#fff;
  transform:translateX(102%);transition:transform .22s ease-out;
  padding:26px 22px;display:flex;flex-direction:column;overflow-y:auto;
}
.drawer.open{transform:none;}
.drawer .drawer-title{font-size:13px;font-weight:700;color:var(--text-3);letter-spacing:.14em;margin-bottom:14px;}
.drawer a.drawer-link{
  display:block;padding:13px 0;border-bottom:1px solid var(--border);
  font-size:16px;font-weight:500;color:var(--ink);
}
.drawer a.drawer-link.active{color:var(--orange);font-weight:700;border-bottom-color:rgba(255,107,53,.4);}
.drawer-foot{margin-top:auto;padding-top:22px;}
.drawer-foot .btn-main{width:100%;}
.drawer-tip{margin-top:14px;font-size:12px;line-height:1.7;color:var(--text-3);}

/* ---------- 分类窄 Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  background-color:var(--ink);
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  padding-top:112px;padding-bottom:56px;
  min-height:clamp(220px,26vw,320px);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,43,36,.95) 0%,rgba(11,43,36,.86) 58%,rgba(11,43,36,.74) 100%);
}
.cat-hero::after{
  content:"";position:absolute;right:-140px;bottom:-210px;width:520px;height:520px;
  border-radius:50%;border:1px solid rgba(255,255,255,.14);opacity:.5;
}
.cat-hero .container{position:relative;z-index:2;}
.crumb{font-size:13px;color:rgba(242,245,240,.62);margin-bottom:18px;}
.crumb a{color:rgba(242,245,240,.82);}
.crumb a:hover{color:var(--orange);}
.crumb span.sep{margin:0 8px;color:rgba(242,245,240,.4);}
.cat-hero h1{color:#fff;max-width:880px;}
.cat-hero .hero-lead{
  color:rgba(242,245,240,.82);font-size:17px;max-width:720px;margin:18px 0 0;
}
.cat-hero .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.cat-hero .hero-tags .badge-soft{background:rgba(255,107,53,.16);border-color:rgba(255,107,53,.5);color:#FFB194;}
.cat-hero .hero-tags .badge-ink{background:rgba(255,255,255,.08);border-color:var(--line-dark);color:rgba(242,245,240,.86);}

/* ---------- 时间轴 ---------- */
.tl-intro{
  display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:40px;align-items:end;
  margin-bottom:clamp(36px,4.4vw,52px);
}
.tl-intro .note{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--sh-1);
}
.tl-intro .note h3{font-size:16px;margin-bottom:8px;}
.tl-intro .note p{margin:0;font-size:14px;color:var(--text-2);line-height:1.75;}
.timeline{position:relative;}
.tl-item{display:grid;grid-template-columns:92px minmax(0,1fr);gap:clamp(16px,2.4vw,30px);padding-bottom:26px;}
.tl-rail{position:relative;display:flex;flex-direction:column;align-items:center;gap:10px;padding-top:22px;}
.tl-rail::after{
  content:"";position:absolute;top:52px;bottom:-26px;width:1px;background:var(--border);
}
.tl-item:last-child .tl-rail::after{display:none;}
.tl-dot{
  width:12px;height:12px;border-radius:50%;background:var(--lime);
  box-shadow:0 0 0 5px rgba(216,243,74,.2);flex:0 0 auto;
}
.tl-num{
  font-family:var(--num-font);font-variant-numeric:tabular-nums;
  font-size:34px;font-weight:700;color:var(--orange);line-height:1;
}
.tl-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:26px 28px;box-shadow:var(--sh-1);width:88%;
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.tl-item:nth-child(odd) .tl-card{width:100%;}
.tl-item:nth-child(even) .tl-card{align-self:flex-start;}
.tl-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(11,43,36,.2);}
.tl-card h3{margin-bottom:10px;}
.tl-card p{color:var(--text-2);font-size:15.5px;margin-bottom:14px;line-height:1.85;}
.tl-card .kv{display:flex;flex-wrap:wrap;gap:10px;}
.tl-card .kv span{
  font-size:13px;color:var(--ink);background:rgba(11,43,36,.05);
  border:1px solid var(--border);border-radius:999px;padding:5px 12px;
}

/* ---------- 提示条 ---------- */
.tips-band{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:26px;
  display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:clamp(20px,3vw,36px);
}
.tips-band figure{margin:0;}
.tips-band .pic{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img);}
.tips-band figcaption{font-size:13px;color:var(--text-3);margin-top:12px;line-height:1.7;}
.tips-band h2{font-size:clamp(20px,2vw,26px);margin-bottom:18px;}
.tip-list li{
  display:grid;grid-template-columns:26px minmax(0,1fr);gap:12px;
  padding:14px 0;border-bottom:1px solid var(--border);
}
.tip-list li:last-child{border-bottom:0;padding-bottom:0;}
.tip-list li:first-child{padding-top:0;}
.tip-list .tick{
  width:22px;height:22px;border-radius:50%;background:rgba(255,107,53,.12);
  color:var(--orange);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
  margin-top:4px;
}
.tip-list strong{display:block;font-size:15.5px;color:var(--ink);font-weight:600;margin-bottom:4px;}
.tip-list p{margin:0;font-size:14.5px;color:var(--text-2);line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;}
.accordion-item{border:0;border-bottom:1px solid var(--border);background:transparent;}
.accordion-item:first-child{border-top:1px solid var(--border);}
.accordion-button{
  position:relative;background:transparent;box-shadow:none;border:0;
  padding:22px 52px 22px 0;font-size:17px;font-weight:600;color:var(--ink);width:100%;text-align:left;
}
.accordion-button::after{display:none;}
.accordion-button::before{
  content:"+";position:absolute;right:8px;top:50%;transform:translateY(-50%);
  font-family:var(--num-font);font-size:26px;line-height:1;color:var(--orange);
  transition:transform .2s ease-out;
}
.accordion-button:not(.collapsed)::before{content:"−";transform:translateY(-50%) rotate(180deg);}
.accordion-button:not(.collapsed){color:var(--orange);background:transparent;}
.accordion-button:focus{box-shadow:none;outline:2px solid var(--lime);outline-offset:2px;}
.accordion-button:not(.collapsed)::after{
  content:"";position:absolute;left:-16px;top:24px;bottom:24px;width:3px;background:var(--orange);
}
.accordion-body{padding:0 60px 26px 0;color:var(--text-2);font-size:15.5px;line-height:1.85;}
.accordion-body p:last-child{margin-bottom:0;}

/* ---------- 表单触发条 ---------- */
.cta-strip{
  background:var(--ink);color:var(--inverse);border-radius:var(--r-card);
  padding:clamp(28px,3.4vw,44px);position:relative;overflow:hidden;
  display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:28px;align-items:center;
}
.cta-strip::after{
  content:"";position:absolute;right:-120px;top:-120px;width:340px;height:340px;border-radius:50%;
  border:1px solid var(--line-dark);opacity:.7;
}
.cta-strip h2{color:#fff;font-size:clamp(22px,2.4vw,30px);}
.cta-strip p{color:rgba(242,245,240,.78);font-size:15.5px;margin:14px 0 0;}
.cta-strip .cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:2;}
.privacy-line{
  display:flex;gap:12px;align-items:flex-start;
  margin-top:22px;padding:16px 18px;border:1px dashed var(--border);border-radius:var(--r-btn);
  background:#fff;font-size:13px;color:var(--text-2);line-height:1.75;
}
.privacy-line .lock{color:var(--orange);font-size:15px;line-height:1.4;}

/* ---------- 浮起入口 + 模态 ---------- */
.float-entry{
  position:fixed;right:22px;bottom:24px;z-index:1040;
  display:inline-flex;align-items:center;gap:8px;
  background:var(--orange);color:#fff;border:0;border-radius:999px;
  padding:14px 22px;font-size:15px;font-weight:600;cursor:pointer;
  box-shadow:var(--sh-2);transition:transform .18s ease-out,background-color .18s ease-out;
}
.float-entry:hover{background:#EA5A26;transform:translateY(-1px);}
.float-entry:active{transform:translateY(0);}
.modal-content{border:0;border-radius:18px;box-shadow:var(--sh-2);}
.modal-header{border-bottom:1px solid var(--border);padding:22px 26px;}
.modal-title{font-size:19px;font-weight:700;color:var(--ink);}
.modal-body{padding:24px 26px 8px;}
.modal-footer{border-top:0;padding:8px 26px 26px;}
.form-label{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.form-control,.form-select{
  border-radius:var(--r-btn);border:1px solid var(--border);height:48px;
  padding:10px 14px;font-size:15px;color:var(--text);background:#fff;box-shadow:none;
}
textarea.form-control{height:auto;min-height:110px;line-height:1.75;}
.form-control:focus,.form-select:focus{
  border-color:var(--ink);box-shadow:0 0 0 4px rgba(11,43,36,.08);outline:none;
}
.form-check-input{width:17px;height:17px;margin-top:4px;border-radius:4px;border-color:var(--border);}
.form-check-input:checked{background-color:var(--orange);border-color:var(--orange);}
.form-check-input:focus{box-shadow:0 0 0 4px rgba(11,43,36,.08);border-color:var(--ink);}
.form-check-label{font-size:12.5px;color:var(--text-3);line-height:1.7;}
.form-note{font-size:12.5px;color:var(--text-3);margin-top:12px;line-height:1.7;}
.form-ok{
  display:none;margin-top:16px;padding:12px 14px;border-radius:var(--r-btn);
  background:rgba(216,243,74,.24);border:1px solid rgba(11,43,36,.18);
  font-size:13.5px;color:var(--ink);
}
.form-ok.show{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--inverse);padding-top:clamp(48px,6vw,80px);margin-top:0;}
.footer-grid{
  display:grid;grid-template-columns:minmax(0,4fr) repeat(3,minmax(0,2.6fr));
  gap:clamp(26px,3.4vw,44px);padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:rgba(242,245,240,.6);}
.site-footer p{color:rgba(242,245,240,.74);font-size:14.5px;line-height:1.85;margin:0;max-width:420px;}
.footer-col h4{color:var(--orange);font-size:14px;font-weight:600;margin-bottom:16px;letter-spacing:.04em;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{color:rgba(242,245,240,.8);font-size:14.5px;}
.footer-col ul li a:hover{color:var(--orange);}
.qr-box{
  margin-top:16px;width:112px;padding:14px 10px;border:1px dashed var(--line-dark);border-radius:var(--r-btn);
  font-size:12.5px;line-height:1.7;color:rgba(242,245,240,.72);text-align:center;
}
.footer-bottom{
  border-top:1px solid var(--line-dark);padding:22px 0 26px;text-align:center;
  font-size:13px;color:rgba(242,245,240,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .footer-grid{grid-template-columns:minmax(0,4fr) repeat(3,minmax(0,2.4fr));}
}
@media (max-width:991px){
  .nav-links{display:none;}
  .nav-toggle{display:block;}
  .nav-actions .btn-main{display:none;}
  .tl-intro{grid-template-columns:1fr;align-items:start;}
  .tl-card,.tl-item:nth-child(odd) .tl-card{width:100%;}
  .tips-band{grid-template-columns:1fr;}
  .cta-strip{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .site-footer p{max-width:none;}
}
@media (max-width:767px){
  .cat-hero{padding-top:96px;}
  .tl-item{grid-template-columns:60px minmax(0,1fr);gap:14px;}
  .tl-num{font-size:26px;}
  .tl-card{padding:20px;}
  .cta-strip{padding:26px 22px;}
}
@media (max-width:575px){
  body{font-size:15.5px;}
  .cat-hero::after,.cta-strip::after{opacity:.06;}
  .tl-item{grid-template-columns:44px minmax(0,1fr);}
  .tl-num{font-size:22px;}
  .tl-card{padding:18px 16px;}
  .tips-band{padding:18px;}
  .footer-grid{grid-template-columns:1fr;}
  .accordion-button{font-size:16px;padding-right:44px;}
  .accordion-body{padding-right:0;}
  .float-entry{right:14px;bottom:16px;padding:12px 18px;font-size:14px;}
  .cta-strip .cta-actions .btn-main,.cta-strip .cta-actions .btn-ghost{width:100%;}
}

/* roulang page: article */
:root{
  --ink:#0B2B24;
  --ink-soft:#123B31;
  --orange:#FF6B35;
  --orange-dark:#E85A26;
  --lime:#D8F34A;
  --bg:#F5F6F2;
  --card:#FFFFFF;
  --text:#101614;
  --text-2:#5C6B65;
  --text-3:#8A968F;
  --line:#E2E7E0;
  --line-dark:rgba(255,255,255,.14);
  --reverse:#F2F5F0;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(11,43,36,.06), 0 14px 30px -20px rgba(11,43,36,.38);
  --sh-2:0 2px 4px rgba(11,43,36,.09), 0 22px 46px -24px rgba(11,43,36,.46);
  --sec-pad:clamp(56px,7vw,104px);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
a:hover{color:var(--orange)}
h1,h2,h3,h4{margin:0;line-height:1.4;color:var(--ink)}
p{margin:0 0 1.1em}
ul,ol{margin:0;padding:0}
button,input,select,textarea{font:inherit}
body .container{width:100%;max-width:1240px;padding-left:20px;padding-right:20px;margin-left:auto;margin-right:auto}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}

/* 顶部导航 */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background-color .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.site-header.is-scrolled{
  background:var(--ink);
  border-bottom:1px solid var(--line-dark);
  box-shadow:0 1px 2px rgba(11,43,36,.22),0 14px 30px -20px rgba(0,0,0,.5);
}
.header-inner{display:flex;align-items:center;gap:22px;height:66px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:var(--orange);
  position:relative;
  box-shadow:0 6px 16px -10px rgba(0,0,0,.7);
}
.brand-mark::after{
  content:"";position:absolute;inset:9px 8px;
  border:2px solid rgba(255,255,255,.92);
  border-radius:50%;
  border-right-color:transparent;
}
.brand-txt{display:flex;flex-direction:column;line-height:1.25}
.brand-name{font-size:16px;font-weight:800;color:#fff;letter-spacing:-.01em}
.brand-sub{font-size:11px;color:rgba(242,245,240,.6);letter-spacing:.02em}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:14px}
.nav-links a{
  position:relative;font-size:15px;color:rgba(242,245,240,.82);padding:6px 0;
  transition:color .18s ease-out;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--orange);
  transform:scaleX(0);transform-origin:left;transition:transform .18s ease-out;
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:#fff;font-weight:700}
.nav-links a.active::after{transform:scaleX(1)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.08);
  cursor:pointer;padding:0;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;background:#fff;border-radius:2px;
  transform:translateX(-50%);transition:transform .18s ease-out,opacity .18s ease-out;
}
.nav-toggle span{top:50%;margin-top:-1px}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none}

/* 移动端抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,43,36,.5);z-index:1035;
  opacity:0;visibility:hidden;transition:opacity .2s ease-out,visibility .2s ease-out;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:1040;
  background:#fff;box-shadow:-20px 0 50px -30px rgba(11,43,36,.6);
  transform:translateX(102%);transition:transform .22s ease-out;
  padding:26px 22px;display:flex;flex-direction:column;
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-head strong{font-size:15px;color:var(--ink)}
.drawer-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--text-2);cursor:pointer;line-height:1;
}
.drawer-links{display:flex;flex-direction:column;gap:2px;border-top:1px solid var(--line)}
.drawer-links a{
  padding:14px 4px;font-size:15px;color:var(--text);border-bottom:1px solid var(--line);
  transition:color .18s ease-out,padding-left .18s ease-out;
}
.drawer-links a:hover{color:var(--orange);padding-left:8px}
.drawer-links a.active{color:var(--ink);font-weight:700}
.drawer-foot{margin-top:auto;padding-top:20px}
.drawer-foot .btn{width:100%;justify-content:center}
.drawer-note{margin-top:14px;font-size:12px;color:var(--text-3);line-height:1.7}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease-out,background-color .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out,color .18s ease-out;
  white-space:nowrap;
}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--orange);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.3)}
.btn-ghost:hover{background:rgba(255,255,255,.16);color:#fff;transform:translateY(-1px)}
.btn-outline{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-outline:hover{color:var(--ink);border-color:var(--ink);transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#081F1A;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn:disabled{opacity:.45;transform:none;cursor:not-allowed}

/* 文章头部 */
.article-hero{
  position:relative;background:var(--ink);color:var(--reverse);
  padding:126px 0 58px;overflow:hidden;
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:58px 58px;opacity:.75;pointer-events:none;
}
.article-hero::after{
  content:"";position:absolute;right:-110px;bottom:-220px;width:460px;height:460px;border-radius:50%;
  border:1px solid rgba(216,243,74,.22);
  box-shadow:0 0 0 44px rgba(255,255,255,.03),0 0 0 96px rgba(255,255,255,.02);
  pointer-events:none;
}
.article-hero .container{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:rgba(242,245,240,.62);margin-bottom:20px;flex-wrap:wrap}
.crumb a{color:rgba(242,245,240,.78)}
.crumb a:hover{color:var(--lime)}
.crumb em{font-style:normal;color:rgba(242,245,240,.45)}
.article-title{
  font-size:clamp(26px,3.4vw,42px);font-weight:800;letter-spacing:-.01em;color:#fff;
  max-width:940px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.meta-row{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  margin-top:22px;font-size:13px;color:rgba(242,245,240,.66);
}
.meta-row b{color:#fff;font-weight:600}
.meta-row .sep{width:1px;height:12px;background:rgba(242,245,240,.28);display:inline-block}
.meta-chip{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  border:1px solid rgba(255,107,53,.55);background:rgba(255,107,53,.16);
  color:#FFD9C7;font-size:12px;font-weight:600;letter-spacing:.02em;
}

/* 正文布局 */
.article-main{padding:var(--sec-pad) 0 0}
.reader-wrap{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:44px;align-items:start}
.article-body-wrap{min-width:0}
.article-body{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:clamp(24px,3.2vw,44px);
  font-size:17px;line-height:1.9;color:#1B2420;
  max-width:800px;
}
.article-body h2{
  font-size:clamp(20px,2.2vw,26px);font-weight:700;color:var(--ink);
  margin:2em 0 .8em;padding-left:12px;border-left:4px solid var(--orange);line-height:1.5;
}
.article-body h2:first-child{margin-top:0}
.article-body h3{font-size:19px;font-weight:600;color:var(--ink);margin:1.4em 0 .6em}
.article-body h4{font-size:17px;font-weight:600;color:var(--ink);margin:1.2em 0 .5em}
.article-body p{margin:0 0 1.2em}
.article-body ul{list-style:none;padding-left:0;margin:0 0 1.2em}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:.5em}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--ink);
}
.article-body ol{padding-left:1.5em;margin:0 0 1.2em}
.article-body ol li{margin-bottom:.5em}
.article-body blockquote{
  margin:1.5em 0;background:#F0F3EE;border-left:4px solid var(--ink);
  padding:18px 20px;border-radius:8px;color:var(--text-2);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:1.5em auto;height:auto}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:8px}
.article-body table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:15px;display:block;overflow-x:auto}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body th{background:#F0F3EE;color:var(--ink);font-weight:600}
.article-body tbody tr:nth-child(even){background:#FAFBF8}
.article-body a{color:var(--ink);border-bottom:1px solid rgba(255,107,53,.5)}
.article-body a:hover{color:var(--orange)}
.article-body strong{color:var(--ink)}

/* 标签 */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:26px 0 0;max-width:800px}
.tag-row .tag-label{font-size:13px;color:var(--text-3);margin-right:2px}
.badge-soft{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  border:1px solid rgba(11,43,36,.22);background:rgba(11,43,36,.06);color:var(--ink);
  transition:border-color .18s ease-out,color .18s ease-out,background-color .18s ease-out;
}
.badge-soft:hover{border-color:var(--ink);color:var(--ink);background:rgba(11,43,36,.1)}
.badge-soft.is-orange{border-color:rgba(255,107,53,.45);background:rgba(255,107,53,.1);color:#B43F14}
.badge-soft.is-orange:hover{border-color:var(--orange);color:#8F310D}

/* 空态 */
.empty-block{
  min-height:260px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;padding:36px 24px;border:1px dashed var(--line);border-radius:var(--r-card);
  background:#FAFBF8;
}
.empty-block .empty-icon{
  width:56px;height:56px;border-radius:14px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--text-3);background:#fff;
}
.empty-block p{margin:0;color:var(--text-2);font-size:15px}

/* 侧栏 */
.side-stack{display:flex;flex-direction:column;gap:20px;position:sticky;top:92px}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);
}
.side-title{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--ink);margin-bottom:14px;letter-spacing:.02em}
.side-title::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--orange)}
.toc-list{list-style:none;border-left:1px solid var(--line);margin:0;padding:0;max-height:340px;overflow:auto}
.toc-list a{
  display:block;padding:8px 0 8px 14px;margin-left:-1px;border-left:2px solid transparent;
  font-size:14px;color:var(--text-2);line-height:1.6;
  transition:color .18s ease-out,border-color .18s ease-out;
}
.toc-list a:hover{color:var(--ink);border-left-color:rgba(255,107,53,.55)}
.toc-list a.is-active{color:var(--ink);font-weight:600;border-left-color:var(--orange)}
.toc-empty{font-size:13px;color:var(--text-3);display:none}
.link-list{list-style:none;margin:0;padding:0}
.link-list li{border-bottom:1px solid var(--line)}
.link-list li:last-child{border-bottom:0}
.link-list a{display:flex;gap:10px;align-items:flex-start;padding:12px 0;font-size:14px;color:var(--text);transition:color .18s ease-out}
.link-list a:hover{color:var(--orange)}
.link-list .dot{width:6px;height:6px;border-radius:50%;background:var(--orange);margin-top:9px;flex:0 0 auto}
.link-list .sub{display:block;font-size:12px;color:var(--text-3);margin-top:2px;font-weight:400}
.side-cta{background:var(--ink);color:var(--reverse);border-color:var(--ink)}
.side-cta .side-title{color:#fff}
.side-cta .side-title::before{background:var(--lime)}
.side-cta p{font-size:14px;color:rgba(242,245,240,.75);margin-bottom:16px}
.side-cta .btn{width:100%;justify-content:center}

/* 相关推荐 */
.relate-section{padding:var(--sec-pad) 0 0}
.section-head{margin-bottom:32px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.06em;
  color:var(--orange);text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--orange);border-radius:2px}
.section-head h2{font-size:clamp(24px,2.6vw,34px);font-weight:700}
.section-head p{margin:12px 0 0;color:var(--text-2);font-size:15px;max-width:640px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(11,43,36,.24)}
.post-thumb{aspect-ratio:16/9;overflow:hidden;background:#EDF0EA}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.post-card:hover .post-thumb img{transform:scale(1.03)}
.post-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.post-body h3{font-size:18px;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-body p{font-size:14px;color:var(--text-2);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;font-size:13px;color:var(--text-3)}
.post-foot .arrow{transition:transform .2s ease-out;color:var(--orange);font-weight:700}
.post-card:hover .post-foot .arrow{transform:translateX(4px)}

/* 转化区 */
.convert{
  margin-top:var(--sec-pad);
  background:var(--ink);color:var(--reverse);position:relative;overflow:hidden;
}
.convert::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:56px 56px;pointer-events:none;opacity:.8;
}
.convert::after{
  content:"";position:absolute;left:-140px;bottom:-240px;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(216,243,74,.2);pointer-events:none;
}
.convert .container{position:relative;z-index:2;padding-top:var(--sec-pad);padding-bottom:var(--sec-pad)}
.convert-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.convert h2{color:#fff;font-size:clamp(24px,2.6vw,34px);font-weight:700;margin-bottom:18px}
.convert p{color:rgba(242,245,240,.78);font-size:15px}
.point-list{list-style:none;margin:24px 0 0;padding:0}
.point-list li{display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-bottom:1px solid var(--line-dark);font-size:15px;color:rgba(242,245,240,.86)}
.point-list li:last-child{border-bottom:0}
.point-list .idx{
  font-size:12px;font-weight:700;color:var(--ink);background:var(--lime);
  border-radius:6px;padding:2px 8px;flex:0 0 auto;margin-top:3px;
}
.form-card{
  background:#fff;border-radius:18px;padding:clamp(22px,2.6vw,32px);box-shadow:var(--sh-2);
  color:var(--text);
}
.form-card h3{font-size:19px;margin-bottom:6px}
.form-card .form-hint{font-size:13px;color:var(--text-3);margin-bottom:18px}
.field{margin-bottom:16px}
.form-label{display:block;font-size:13px;font-weight:600;color:var(--text-2);margin-bottom:6px}
.form-control,.form-select{
  display:block;width:100%;height:48px;padding:0 14px;font-size:15px;color:var(--text);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-btn);
  box-shadow:none;transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
textarea.form-control{height:auto;min-height:96px;padding:12px 14px;line-height:1.7;resize:vertical}
.form-control::placeholder{color:var(--text-3)}
.form-control:focus,.form-select:focus{
  outline:none;border-color:var(--ink);box-shadow:0 0 0 4px rgba(11,43,36,.08);
}
.check-row{display:flex;gap:10px;align-items:flex-start;margin:4px 0 16px}
.check-row input[type="checkbox"]{
  width:18px;height:18px;margin-top:3px;accent-color:var(--orange);flex:0 0 auto;cursor:pointer;
}
.check-row label{font-size:12.5px;color:var(--text-3);line-height:1.65;cursor:pointer}
.form-card .btn{width:100%;justify-content:center;height:48px}

/* 隐私说明 */
.privacy-bar{
  display:flex;gap:12px;align-items:flex-start;
  border:1px dashed var(--line);background:#F0F3EE;border-radius:var(--r-img);
  padding:14px 18px;font-size:13px;color:var(--text-2);line-height:1.7;
  margin-top:22px;
}
.privacy-bar .lock{flex:0 0 auto;color:var(--ink);margin-top:2px}
.privacy-bar.on-dark{background:rgba(255,255,255,.06);border-color:var(--line-dark);color:rgba(242,245,240,.76)}
.privacy-bar.on-dark .lock{color:var(--lime)}

/* 页脚 */
.site-footer{background:var(--ink);color:var(--reverse);padding:64px 0 0;margin-top:var(--sec-pad)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--orange)}
.footer-brand .brand-name{color:#fff;font-size:16px;font-weight:800}
.footer-brand .brand-sub{display:block;font-size:11px;color:rgba(242,245,240,.58)}
.site-footer p{font-size:14px;color:rgba(242,245,240,.68);line-height:1.85;max-width:340px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--orange);margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(242,245,240,.74);transition:color .18s ease-out}
.footer-col a:hover{color:#fff}
.qr-box{
  margin-top:14px;width:112px;height:112px;border-radius:12px;
  border:1px dashed rgba(255,255,255,.28);display:flex;align-items:center;justify-content:center;
  text-align:center;font-size:12px;color:rgba(242,245,240,.6);line-height:1.6;padding:10px;
}
.footer-bottom{
  margin-top:44px;padding:20px 0;border-top:1px solid var(--line-dark);
  text-align:center;font-size:13px;color:rgba(242,245,240,.55);
}

/* 浮起入口 */
.float-entry{
  position:fixed;right:20px;bottom:22px;z-index:1045;
  display:inline-flex;align-items:center;gap:8px;height:50px;padding:0 22px;border-radius:999px;
  background:var(--orange);color:#fff;font-size:15px;font-weight:600;border:0;cursor:pointer;
  box-shadow:0 2px 6px rgba(11,43,36,.18),0 18px 34px -18px rgba(255,107,53,.9);
  transition:transform .18s ease-out,background-color .18s ease-out,box-shadow .18s ease-out;
}
.float-entry:hover{background:var(--orange-dark);transform:translateY(-1px)}
.float-entry:active{transform:translateY(0)}

/* 模态 */
.modal-content{border:0;border-radius:18px;box-shadow:var(--sh-2);overflow:hidden}
.modal-header{border-bottom:1px solid var(--line);padding:20px 24px}
.modal-title{font-size:18px;font-weight:700;color:var(--ink)}
.modal-body{padding:22px 24px 24px}
.modal .btn-close{box-shadow:none}
.modal-backdrop.show{opacity:.5}
@media (max-width:575.98px){
  .modal-dialog{margin:0;align-items:flex-end;min-height:100%}
  .modal-content{border-radius:18px 18px 0 0}
}

/* 响应式 */
@media (max-width:1199.98px){
  .nav-links{gap:20px}
  .nav-links a{font-size:14px}
}
@media (max-width:991.98px){
  .nav-links{display:none}
  .nav-toggle{display:block}
  .reader-wrap{grid-template-columns:minmax(0,1fr)}
  .side-stack{position:static;top:auto}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .convert-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .article-body{max-width:none}
}
@media (max-width:767.98px){
  .article-hero{padding:110px 0 46px}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:1fr}
  .site-footer p{max-width:none}
  .float-entry{right:14px;bottom:14px;height:46px;padding:0 18px;font-size:14px}
}
@media (max-width:575.98px){
  .header-inner{height:60px;gap:12px}
  .brand-sub{display:none}
  .brand-name{font-size:15px}
  .meta-row{font-size:12.5px;gap:10px}
  .article-body{font-size:16.5px;padding:22px 18px}
  .article-body h2{padding-left:10px;border-left-width:3px}
  .side-card{padding:18px}
  .post-body{padding:18px}
}
@media (min-width:1400px){
  body .container{max-width:1240px}
  .reader-wrap{gap:52px}
}

/* roulang page: category2 */
:root{
  --ink:#0B2B24;
  --ink-soft:#123A31;
  --orange:#FF6B35;
  --orange-deep:#E85A26;
  --lime:#D8F34A;
  --bg:#F5F6F2;
  --card:#FFFFFF;
  --text:#101614;
  --muted:#5C6B65;
  --dim:#8A968F;
  --line:#E2E7E0;
  --line-inv:rgba(255,255,255,.14);
  --inv:#F2F5F0;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,43,36,.06);
  --sh-2:0 1px 2px rgba(11,43,36,.06),0 14px 30px -20px rgba(11,43,36,.38);
  --sh-3:0 2px 4px rgba(11,43,36,.08),0 22px 44px -24px rgba(11,43,36,.45);
  --sec:clamp(56px,7vw,104px);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  --font-num:"Barlow Condensed","Oswald","Arial Narrow",var(--font-cn);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.container{width:100%;max-width:1240px;padding-left:20px;padding-right:20px;margin:0 auto}
.section{padding:var(--sec) 0}
.section--plain{background:var(--bg)}
.section--paper{background:#fff}

/* ---------- 按钮体系 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;background:transparent;
  transition:transform 200ms ease-out,background-color 200ms ease-out,border-color 200ms ease-out,box-shadow 200ms ease-out,color 200ms ease-out;
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--orange-deep);transform:translateY(-1px);box-shadow:var(--sh-2);color:#fff}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-outline{background:#fff;color:var(--ink);border-color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-outline:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:rgba(255,255,255,.06);color:var(--inv);border-color:rgba(255,255,255,.4)}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff;transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-block{width:100%}
.btn[disabled],.btn.disabled{opacity:.45;pointer-events:none;transform:none}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;line-height:1.6;
}
.badge-orange{color:var(--orange-deep);background:rgba(255,107,53,.1);border:1px solid rgba(255,107,53,.28)}
.badge-ink{color:var(--ink);background:rgba(11,43,36,.08);border:1px solid rgba(11,43,36,.18)}
.badge-lime{color:var(--lime);background:rgba(216,243,74,.12);border:1px solid rgba(216,243,74,.35)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:50;
  background:transparent;border-bottom:1px solid transparent;
  transition:background-color 200ms ease-out,border-color 200ms ease-out,box-shadow 200ms ease-out;
}
.site-header.scrolled{background:var(--ink);border-bottom-color:var(--line-inv);box-shadow:0 10px 26px -20px rgba(0,0,0,.58)}
.header-inner{display:flex;align-items:center;gap:22px;height:66px}
.brand{display:flex;align-items:center;gap:10px;color:var(--inv);flex:0 0 auto}
.brand-mark{width:28px;height:28px;border-radius:8px;background:var(--orange);position:relative;flex:0 0 auto}
.brand-mark::after{content:"";position:absolute;inset:8px;border-radius:3px;background:var(--ink)}
.brand-txt{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:16px;font-weight:800;letter-spacing:-.01em}
.brand-sub{font-size:11px;color:rgba(255,255,255,.62);letter-spacing:.02em}
.nav-links{display:flex;align-items:center;gap:24px;margin-left:10px}
.nav-links a{
  position:relative;font-size:15px;color:rgba(255,255,255,.78);
  padding:6px 2px;transition:color 180ms ease-out;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;
  background:var(--orange);transform:scaleX(0);transform-origin:left;
  transition:transform 200ms ease-out;
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:#fff;font-weight:700}
.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active::before{
  content:"";position:absolute;left:-11px;top:50%;width:5px;height:5px;margin-top:-2px;
  border-radius:50%;background:var(--orange);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.28);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;
  transition:background-color 180ms ease-out;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px}
.nav-toggle:hover{background:rgba(255,255,255,.18)}

/* 移动端抽屉 */
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:70;
  background:var(--card);border-radius:18px 0 0 18px;padding:22px;
  display:flex;flex-direction:column;gap:18px;
  transform:translateX(102%);transition:transform 220ms ease-out;overflow-y:auto;
}
.nav-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-head .brand-name{color:var(--ink);font-size:15px}
.drawer-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
  background:#fff;font-size:20px;line-height:1;color:var(--muted);cursor:pointer;
}
.drawer-close:hover{border-color:var(--ink);color:var(--ink)}
.drawer-links{display:flex;flex-direction:column}
.drawer-links a{
  padding:14px 4px;border-bottom:1px solid var(--line);
  font-size:16px;color:var(--text);transition:color 180ms ease-out,padding-left 180ms ease-out;
}
.drawer-links a.active{color:var(--ink);font-weight:700;border-left:3px solid var(--orange);padding-left:12px}
.drawer-note{font-size:12px;color:var(--dim);line-height:1.7;margin-top:auto}
.drawer-mask{
  position:fixed;inset:0;z-index:60;background:rgba(11,43,36,.52);
  opacity:0;visibility:hidden;transition:opacity 200ms ease-out,visibility 200ms ease-out;
}
.drawer-mask.show{opacity:1;visibility:visible}

/* ---------- 页头横幅 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--ink);color:var(--inv);
  padding:calc(66px + clamp(44px,6vw,78px)) 0 clamp(48px,6vw,84px);
}
.page-hero::before{
  content:"";position:absolute;right:-160px;bottom:-260px;width:620px;height:620px;
  border:1px solid rgba(216,243,74,.12);border-radius:50%;
}
.page-hero::after{
  content:"";position:absolute;left:-120px;top:-180px;width:420px;height:420px;
  border:1px solid rgba(255,255,255,.08);border-radius:50%;
}
.hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.12fr .88fr;
  gap:clamp(28px,4vw,56px);align-items:center;
}
.hero-copy h1{
  margin-top:20px;color:#fff;
  font-size:clamp(28px,3.7vw,46px);font-weight:800;line-height:1.24;letter-spacing:-.01em;
}
.hero-sub{
  margin-top:18px;max-width:36em;
  font-size:clamp(16px,1.5vw,18px);color:rgba(255,255,255,.78);line-height:1.85;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:28px}
.hero-points li{
  position:relative;padding-left:16px;
  font-size:14px;color:rgba(255,255,255,.7);
}
.hero-points li::before{
  content:"";position:absolute;left:0;top:50%;width:6px;height:6px;margin-top:-3px;
  border-radius:50%;background:var(--lime);
}
.hero-visual img{
  width:100%;height:clamp(240px,32vw,380px);object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--line-inv);
}

/* ---------- 板块标题 ---------- */
.kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:600;letter-spacing:.02em;color:var(--orange-deep);
}
.kicker::before{content:"";width:22px;height:2px;background:var(--orange);border-radius:2px}
.kicker--light{color:var(--lime)}
.kicker--light::before{background:var(--lime)}
.section-head{max-width:760px;margin-bottom:clamp(32px,4vw,44px)}
.section-head h2{
  margin-top:14px;color:var(--ink);
  font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.32;letter-spacing:-.01em;
}
.section-lead{margin-top:16px;color:var(--muted);font-size:16px;line-height:1.88}

/* ---------- 图文交替 ---------- */
.split-list{display:flex;flex-direction:column}
.split-row{
  display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4.5vw,64px);
  align-items:center;padding:clamp(32px,4vw,48px) 0;border-top:1px solid var(--line);
}
.split-row:first-child{border-top:0;padding-top:0}
.split-row.reverse .split-media{order:2}
.split-row.shift-up{margin-top:-24px}
.split-media{position:relative}
.split-media img{
  position:relative;z-index:1;width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-img);
}
.frame-deco{
  position:absolute;inset:0;border:1px solid var(--ink);border-radius:var(--r-img);
  transform:translate(12px,12px);z-index:0;
}
.split-row.reverse .frame-deco{transform:translate(-12px,12px)}
.index-num{
  display:block;font-family:var(--font-num);font-size:44px;font-weight:700;line-height:1;
  color:var(--orange);font-variant-numeric:tabular-nums;
}
.index-num::after{
  content:"";display:block;width:44px;height:3px;margin-top:10px;
  background:var(--lime);border-radius:2px;
}
.split-body h3{margin:18px 0 14px;font-size:22px;font-weight:700;color:var(--ink);line-height:1.4}
.split-body p{color:var(--muted);font-size:16px;line-height:1.9;margin-bottom:14px}
.text-link{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:6px;font-size:15px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line);padding-bottom:3px;
  transition:color 180ms ease-out,border-color 180ms ease-out;
}
.text-link::after{content:"→";transition:transform 200ms ease-out}
.text-link:hover{color:var(--orange-deep);border-color:var(--orange)}
.text-link:hover::after{transform:translateX(4px)}

/* ---------- 指标带 ---------- */
.metric-band{
  position:relative;overflow:hidden;
  background:var(--ink);color:var(--inv);
  padding:clamp(44px,5vw,72px) 0;
}
.metric-band .bg-layer{
  position:absolute;inset:0;background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.08;
}
.metric-bar{position:relative;z-index:1;display:grid;grid-template-columns:repeat(3,1fr)}
.metric-item{padding:0 clamp(14px,2.4vw,34px);border-left:1px solid var(--line-inv)}
.metric-item:first-child{border-left:0;padding-left:0}
.metric-num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:clamp(36px,4.6vw,56px);font-weight:700;line-height:1;color:#fff;
}
.metric-unit{font-size:14px;font-weight:600;color:var(--lime);margin-left:6px}
.metric-item p{margin-top:14px;font-size:13px;line-height:1.75;color:rgba(255,255,255,.66)}

/* ---------- 对比区 ---------- */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compare-col{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);
  transition:box-shadow 200ms ease-out,border-color 200ms ease-out,transform 200ms ease-out;
}
.compare-col:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.compare-col--strong{border-color:rgba(255,107,53,.4);box-shadow:var(--sh-2)}
.compare-col h3{font-size:18px;font-weight:700;color:var(--ink);margin-bottom:6px}
.compare-col .col-tag{
  display:block;font-size:13px;color:var(--dim);margin-bottom:18px;
}
.def-list{margin:0}
.def-item{padding:14px 0;border-bottom:1px dashed var(--line)}
.def-item:last-child{border-bottom:0;padding-bottom:0}
.def-item dt{font-size:15px;font-weight:600;color:var(--ink)}
.def-item dd{margin:6px 0 0;font-size:14px;line-height:1.8;color:var(--muted)}

/* ---------- 折叠问答 ---------- */
.faq-accordion .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.faq-accordion .accordion-item:first-child{border-top:1px solid var(--line)}
.faq-accordion .accordion-button{
  position:relative;width:100%;border:0;border-radius:0!important;
  padding:20px 46px 20px 16px;background:transparent;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;text-align:left;
  box-shadow:none!important;transition:color 180ms ease-out,background-color 180ms ease-out;
}
.faq-accordion .accordion-button::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  background:var(--orange);opacity:0;transition:opacity 200ms ease-out;border-radius:2px;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--ink);background:rgba(255,107,53,.05)}
.faq-accordion .accordion-button:not(.collapsed)::before{opacity:1}
.faq-accordion .accordion-button::after{
  content:"+";position:absolute;right:12px;top:50%;transform:translateY(-50%);
  background-image:none;width:auto;height:auto;
  font-size:24px;font-weight:400;line-height:1;color:var(--orange);
  display:flex;align-items:center;justify-content:center;
  transition:color 180ms ease-out;
}
.faq-accordion .accordion-button:not(.collapsed)::after{content:"−";transform:translateY(-50%)}
.faq-accordion .accordion-body{
  padding:0 46px 24px 16px;color:var(--muted);font-size:15px;line-height:1.88;
}

/* ---------- 转化区与表单 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink);color:var(--inv);
  padding:var(--sec) 0;
}
.cta-band::before{
  content:"";position:absolute;left:-140px;bottom:-220px;width:520px;height:520px;
  border:1px solid rgba(216,243,74,.12);border-radius:50%;
}
.cta-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,60px);align-items:start;
}
.cta-copy h2{
  margin-top:16px;color:#fff;
  font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.34;
}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:14px}
.cta-points li{position:relative;padding-left:22px;font-size:15px;color:rgba(255,255,255,.78);line-height:1.8}
.cta-points li::before{
  content:"";position:absolute;left:0;top:12px;width:8px;height:8px;
  border-radius:2px;background:var(--orange);
}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.form-card{
  background:#fff;border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-3);
}
.form-card h3{font-size:20px;font-weight:700;color:var(--ink)}
.form-card-lead{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.8}
.ask-form{margin-top:22px;display:flex;flex-direction:column;gap:16px}
.field{display:flex;flex-direction:column}
.form-label{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.form-control,.form-select{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;font-size:15px;color:var(--text);
  transition:border-color 180ms ease-out,box-shadow 180ms ease-out;
}
textarea.form-control{height:auto;min-height:96px;padding:12px 14px;line-height:1.75;resize:vertical}
.form-control::placeholder{color:var(--dim)}
.form-control:focus,.form-select:focus{
  outline:none;border-color:var(--ink);box-shadow:0 0 0 4px rgba(11,43,36,.08);background:#fff;
}
.form-select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.consent{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--dim);line-height:1.7}
.consent input{margin-top:3px;width:16px;height:16px;accent-color:var(--ink);flex:0 0 auto}
.form-tip{font-size:13px;color:var(--dim);line-height:1.7}
.form-tip.ok{color:var(--ink);font-weight:600}
.privacy-note{
  display:flex;align-items:flex-start;gap:12px;
  margin-top:26px;padding:16px 18px;border-radius:12px;
  border:1px dashed rgba(255,255,255,.28);background:rgba(255,255,255,.06);
  font-size:13px;color:rgba(255,255,255,.7);line-height:1.72;
}
.privacy-note .lock{
  flex:0 0 auto;width:18px;height:18px;border-radius:5px;border:1.5px solid var(--lime);
  position:relative;margin-top:2px;
}
.privacy-note .lock::before{
  content:"";position:absolute;left:3px;top:-6px;width:10px;height:8px;
  border:1.5px solid var(--lime);border-bottom:0;border-radius:6px 6px 0 0;
}

/* ---------- 浮动入口与弹层 ---------- */
.float-ask{
  position:fixed;right:24px;bottom:24px;z-index:55;
  display:inline-flex;align-items:center;gap:10px;height:52px;padding:0 22px;
  border-radius:var(--r-pill);border:0;background:var(--orange);color:#fff;
  font-size:15px;font-weight:600;cursor:pointer;box-shadow:var(--sh-3);
  transition:transform 200ms ease-out,background-color 200ms ease-out;
}
.float-ask:hover{background:var(--orange-deep);transform:translateY(-2px)}
.float-ask:active{transform:translateY(0)}
.ask-modal .modal-content{border:0;border-radius:18px;overflow:hidden;box-shadow:var(--sh-3)}
.ask-modal .modal-header{border-bottom:1px solid var(--line);padding:20px 24px}
.ask-modal .modal-title{font-size:18px;font-weight:700;color:var(--ink)}
.ask-modal .modal-body{padding:22px 24px 24px}
.ask-modal .btn-close{opacity:.5}
.ask-modal .btn-close:hover{opacity:.9}
.ask-modal .btn-close:focus{box-shadow:0 0 0 4px rgba(11,43,36,.08);opacity:.9}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:clamp(48px,6vw,80px) 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:rgba(255,255,255,.6)}
.site-footer p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:34em}
.footer-col h4{font-size:14px;font-weight:600;color:var(--orange);letter-spacing:.02em;margin-bottom:16px}
.footer-col ul li a{
  display:inline-block;font-size:14px;line-height:2.1;color:rgba(255,255,255,.72);
  transition:color 180ms ease-out;
}
.footer-col ul li a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.qr-box{
  width:104px;height:104px;margin-top:14px;border:1px dashed var(--line-inv);border-radius:12px;
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;line-height:1.6;color:rgba(255,255,255,.58);padding:8px;
}
.footer-bottom{
  margin-top:clamp(36px,4vw,56px);border-top:1px solid var(--line-inv);
  padding:20px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.55);line-height:1.8;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-grid{gap:36px}
  .nav-links{gap:18px}
}
@media (max-width:991px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .hero-grid{grid-template-columns:1fr}
  .hero-visual img{height:clamp(220px,46vw,340px)}
  .split-row{grid-template-columns:1fr;gap:30px;padding:36px 0}
  .split-row.reverse .split-media{order:0}
  .split-row.shift-up{margin-top:0}
  .frame-deco{transform:translate(10px,10px)}
  .split-row.reverse .frame-deco{transform:translate(10px,10px)}
  .metric-bar{grid-template-columns:1fr}
  .metric-item{border-left:0;border-top:1px solid var(--line-inv);padding:22px 0 0}
  .metric-item:first-child{border-top:0;padding-top:0}
  .compare-grid{grid-template-columns:1fr}
  .cta-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .brand-sub{display:none}
  .hero-actions{gap:12px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .section-head{margin-bottom:28px}
}
@media (max-width:575px){
  .header-actions .btn{display:none}
  .hero-actions .btn{width:100%}
  .hero-points{gap:8px 18px}
  .footer-grid{grid-template-columns:1fr}
  .float-ask{right:14px;bottom:14px;height:48px;padding:0 18px;font-size:14px}
  .form-card{padding:22px}
  .ask-modal .modal-dialog{margin:0;max-width:100%;position:fixed;left:0;right:0;bottom:0}
  .ask-modal .modal-content{border-radius:18px 18px 0 0}
}
@media (min-width:1400px){
  .container{max-width:1300px}
}

/* roulang page: category3 */
:root{
  --ink:#0B2B24;
  --ink-soft:#123A31;
  --orange:#FF6B35;
  --orange-deep:#E8571F;
  --lime:#D8F34A;
  --bg:#F5F6F2;
  --card:#FFFFFF;
  --text:#101614;
  --text-2:#5C6B65;
  --text-3:#8A968F;
  --line:#E2E7E0;
  --line-dark:rgba(255,255,255,.14);
  --soft:#F0F3EE;
  --rev:#F2F5F0;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-1:0 1px 2px rgba(11,43,36,.06),0 14px 30px -20px rgba(11,43,36,.38);
  --shadow-2:0 2px 4px rgba(11,43,36,.08),0 22px 40px -22px rgba(11,43,36,.5);
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --num:"Barlow Condensed","Oswald","PingFang SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);
  font-size:16px;line-height:1.82;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color .18s ease-out,background-color .18s ease-out,border-color .18s ease-out,transform .18s ease-out}
a:hover{color:var(--orange)}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.35;letter-spacing:-.005em}
p{margin:0 0 1.2em}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
.section{padding:clamp(56px,7vw,104px) 0}
.section-tight{padding:clamp(40px,5vw,64px) 0}
.section-head{max-width:720px;margin-bottom:clamp(28px,3vw,40px)}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;
  letter-spacing:.06em;color:var(--orange);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--orange);border-radius:2px}
h2{font-size:clamp(24px,2.6vw,34px)}
h3{font-size:20px;font-weight:600}
.h1{font-size:clamp(30px,4.2vw,52px);font-weight:800;letter-spacing:-.01em}
.lead{font-size:17px;color:var(--text-2);line-height:1.85}
.num{font-family:var(--num);font-variant-numeric:tabular-nums;letter-spacing:.01em}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform .18s ease-out,background-color .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out,color .18s ease-out;
}
.btn-main{background:var(--orange);color:#fff;box-shadow:var(--shadow-1)}
.btn-main:hover{background:var(--orange-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-main:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--ink);border:1px solid var(--ink)}
.btn-ghost:hover{background:#fff;color:var(--ink);transform:translateY(-1px);box-shadow:var(--shadow-1)}
.btn-ghost:active{transform:translateY(0)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:var(--ink-soft);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-line{background:transparent;color:var(--rev);border:1px solid var(--line-dark)}
.btn-line:hover{color:#fff;border-color:rgba(255,255,255,.4);transform:translateY(-1px)}
.btn-block{width:100%}
.btn:disabled,.btn.disabled{opacity:.45;transform:none;box-shadow:none;cursor:not-allowed}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--ink)}
.link-more::after{content:"→";transition:transform .18s ease-out}
.link-more:hover{color:var(--orange)}
.link-more:hover::after{transform:translateX(4px)}

/* ============ 徽章 / 标签 ============ */
.badge-pill,.badge,.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;line-height:1.6;
}
.badge-ink{color:var(--ink);background:rgba(11,43,36,.07);border:1px solid rgba(11,43,36,.16)}
.badge-orange{color:var(--orange);background:rgba(255,107,53,.09);border:1px solid rgba(255,107,53,.24)}
.badge-lime{color:var(--ink);background:rgba(216,243,74,.35);border:1px solid rgba(216,243,74,.8)}
.badge-dark{color:var(--lime);background:rgba(255,255,255,.06);border:1px solid var(--line-dark)}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;background:var(--ink);
  border-bottom:1px solid var(--line-dark);
  transition:box-shadow .2s ease-out,background-color .2s ease-out;
}
.site-header.is-scrolled{box-shadow:0 14px 30px -24px rgba(0,0,0,.85);background:#092520}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:66px}
.nav-brand{display:flex;align-items:center;gap:12px;color:#fff}
.nav-brand:hover{color:#fff}
.brand-mark{
  position:relative;flex:none;width:36px;height:36px;border-radius:11px;
  background:var(--orange);box-shadow:inset 0 0 0 1px rgba(255,255,255,.18);
}
.brand-mark::before{content:"";position:absolute;left:9px;right:9px;top:11px;height:2px;background:#fff;border-radius:2px;opacity:.95}
.brand-mark::after{content:"";position:absolute;left:9px;right:9px;bottom:11px;height:2px;background:var(--lime);border-radius:2px}
.brand-txt{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:16px;font-weight:700;letter-spacing:.01em;color:#fff}
.brand-sub{font-size:11px;color:rgba(242,245,240,.66);letter-spacing:.02em}
.nav-right{display:flex;align-items:center;gap:18px}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-links a{
  position:relative;padding:9px 13px;font-size:15px;color:rgba(242,245,240,.82);border-radius:8px;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav-links a.active{color:#fff;font-weight:600}
.nav-links a.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;background:var(--orange);border-radius:2px;
}
.nav-cta{min-height:40px;padding:0 18px;font-size:14px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line-dark);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--rev);border-radius:2px}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,43,36,.5);opacity:0;visibility:hidden;
  transition:opacity .2s ease-out,visibility .2s ease-out;z-index:1050;
}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(88vw,340px);background:var(--ink);color:var(--rev);
  transform:translateX(100%);transition:transform .22s ease-out;z-index:1060;
  display:flex;flex-direction:column;padding:22px 22px 26px;
}
body.drawer-open .drawer-mask{opacity:1;visibility:visible}
body.drawer-open .nav-drawer{transform:translateX(0)}
body.drawer-open{overflow:hidden}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line-dark);color:var(--rev);font-size:18px;line-height:1}
.drawer-links{display:flex;flex-direction:column;gap:4px;padding-bottom:18px;border-bottom:1px solid var(--line-dark)}
.drawer-links a{padding:12px 4px;font-size:16px;color:rgba(242,245,240,.86);border-bottom:1px solid rgba(255,255,255,.07)}
.drawer-links a:last-child{border-bottom:0}
.drawer-links a.active{color:#fff;font-weight:600}
.drawer-foot{margin-top:auto;padding-top:20px}
.drawer-note{font-size:12px;color:rgba(242,245,240,.6);line-height:1.7;margin:12px 0 0}

/* ============ 页面首屏 ============ */
.page-hero{
  position:relative;overflow:hidden;background:var(--ink);color:var(--rev);
  padding:clamp(52px,6vw,86px) 0 clamp(44px,5vw,72px);
}
.page-hero::before{
  content:"";position:absolute;width:640px;height:640px;right:-190px;top:-280px;border-radius:50%;
  border:1px solid rgba(216,243,74,.12);pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;width:880px;height:880px;right:-320px;top:-380px;border-radius:50%;
  border:1px solid rgba(255,107,53,.1);pointer-events:none;
}
.hero-grid-lines{
  position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:100% 72px;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.25fr .75fr;gap:clamp(28px,4vw,56px);align-items:center}
.page-hero h1{color:#fff;font-size:clamp(28px,3.6vw,44px);font-weight:800;letter-spacing:-.01em;margin-bottom:18px}
.page-hero .lead{color:rgba(242,245,240,.82);max-width:640px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(242,245,240,.78)}
.hero-points li::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 4px rgba(216,243,74,.14)}
.hero-crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(242,245,240,.6);margin-bottom:18px}
.hero-crumbs a:hover{color:var(--lime)}
.hero-crumbs span{opacity:.5}
.hero-panel{
  position:relative;background:rgba(255,255,255,.05);border:1px solid var(--line-dark);
  border-radius:18px;padding:22px 22px 18px;
}
.panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.panel-head .panel-time{font-size:12px;color:rgba(242,245,240,.55)}
.panel-list li{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:12px 0;border-top:1px solid rgba(255,255,255,.09)}
.panel-list li:first-child{border-top:0}
.panel-list a{display:flex;align-items:center;gap:9px;font-size:15px;font-weight:600;color:#fff}
.panel-list a::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--orange);flex:none}
.panel-list li span{font-size:12px;color:rgba(242,245,240,.58)}

/* ============ 问答区（左锚点 + 右折叠） ============ */
.qa-section{background:var(--bg)}
.qa-layout{display:grid;grid-template-columns:repeat(12,1fr);gap:clamp(24px,3vw,44px);align-items:start}
.qa-side{grid-column:span 3;position:sticky;top:96px}
.side-title{font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--text-3);margin-bottom:14px}
.anchor-nav{display:flex;flex-direction:column;border-left:2px solid var(--line)}
.anchor-nav a{
  position:relative;padding:11px 0 11px 16px;font-size:15px;color:var(--text-2);margin-left:-2px;
  border-left:3px solid transparent;
}
.anchor-nav a:hover{color:var(--ink);background:rgba(11,43,36,.03)}
.anchor-nav a.active{color:var(--ink);font-weight:600;border-left-color:var(--orange);background:rgba(255,107,53,.05)}
.side-note{
  margin-top:22px;padding:16px 18px;border-radius:14px;background:#fff;border:1px solid var(--line);
  font-size:13px;color:var(--text-2);line-height:1.75;box-shadow:var(--shadow-1);
}
.side-note strong{color:var(--ink)}
.qa-main{grid-column:span 9}
.qa-group{margin-bottom:clamp(30px,3.4vw,46px);scroll-margin-top:96px}
.qa-group:last-child{margin-bottom:0}
.qa-group-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.qa-group-head h2{font-size:clamp(20px,2vw,26px)}
.qa-group-head .group-idx{font-family:var(--num);font-size:26px;font-weight:700;color:rgba(11,43,36,.16);line-height:1}
.qa-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:4px 26px;box-shadow:var(--shadow-1)}
.qa-item{border-bottom:1px solid var(--line)}
.qa-item:last-child{border-bottom:0}
.qa-q{
  position:relative;width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:20px 0 20px 16px;text-align:left;font-size:18px;font-weight:600;color:var(--ink);line-height:1.6;
  transition:color .18s ease-out;
}
.qa-q::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;border-radius:3px;
  background:var(--orange);opacity:0;transition:opacity .18s ease-out;
}
.qa-q:hover{color:var(--orange)}
.qa-q[aria-expanded="true"]{color:var(--ink)}
.qa-q[aria-expanded="true"]::before{opacity:1}
.qa-icon{
  position:relative;flex:none;width:18px;height:18px;margin-top:6px;border-radius:6px;
  border:1px solid var(--line);transition:border-color .18s ease-out,background-color .18s ease-out;
}
.qa-icon::before,.qa-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--ink);border-radius:2px;transform:translate(-50%,-50%)}
.qa-icon::before{width:9px;height:1.6px}
.qa-icon::after{width:1.6px;height:9px;transition:opacity .18s ease-out,transform .18s ease-out}
.qa-q:hover .qa-icon{border-color:var(--orange);background:rgba(255,107,53,.06)}
.qa-q[aria-expanded="true"] .qa-icon{border-color:var(--orange);background:var(--orange)}
.qa-q[aria-expanded="true"] .qa-icon::before{background:#fff}
.qa-q[aria-expanded="true"] .qa-icon::after{opacity:0;transform:translate(-50%,-50%) rotate(90deg)}
.qa-a{padding:0 40px 22px 16px;font-size:15px;line-height:1.85;color:var(--text-2)}
.qa-a p:last-child{margin-bottom:0}
.qa-a ul{margin:12px 0 0}
.qa-a ul li{position:relative;padding-left:16px;margin-bottom:6px}
.qa-a ul li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:2px;background:var(--orange)}

/* ============ 深色安全提示条 ============ */
.tips-bar{position:relative;overflow:hidden;background:var(--ink);color:var(--rev);padding:clamp(36px,4vw,54px) 0}
.tips-bar::after{
  content:"";position:absolute;width:520px;height:520px;left:-180px;bottom:-320px;border-radius:50%;
  border:1px solid rgba(216,243,74,.1);pointer-events:none;
}
.tips-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(3,1fr)}
.tip{display:flex;gap:14px;padding:0 clamp(16px,2.4vw,32px);border-left:1px solid var(--line-dark)}
.tip:first-child{border-left:0;padding-left:0}
.tip:last-child{padding-right:0}
.tip-icon{
  flex:none;width:36px;height:36px;border-radius:11px;border:1px solid var(--line-dark);
  display:flex;align-items:center;justify-content:center;
}
.tip-icon::before{content:"";width:10px;height:10px;border-radius:3px;background:var(--lime)}
.tip h3{color:#fff;font-size:16px;margin-bottom:6px}
.tip p{margin:0;font-size:13.5px;color:rgba(242,245,240,.72);line-height:1.75}

/* ============ 自查图文 ============ */
.check-grid{display:grid;grid-template-columns:5fr 7fr;gap:clamp(28px,4vw,56px);align-items:center}
.figure-wrap{position:relative}
.figure-wrap img{width:100%;aspect-ratio:4/3;object-fit:cover;box-shadow:var(--shadow-1)}
.figure-wrap::after{
  content:"";position:absolute;inset:14px -14px -14px 14px;border:1px solid var(--ink);border-radius:var(--r-img);
  z-index:-1;
}
.figure-cap{margin-top:14px;font-size:13px;color:var(--text-3)}
.check-list li{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)}
.check-list li:last-child{border-bottom:0}
.check-idx{font-family:var(--num);font-size:22px;font-weight:700;color:var(--orange);line-height:1.2;min-width:38px}
.check-list h3{font-size:17px;margin-bottom:4px}
.check-list p{margin:0;font-size:14.5px;color:var(--text-2);line-height:1.8}

/* ============ 隐私说明 ============ */
.privacy-note{
  display:flex;gap:14px;align-items:flex-start;padding:18px 20px;border-radius:14px;
  background:var(--soft);border:1px dashed rgba(11,43,36,.22);font-size:13px;color:var(--text-2);line-height:1.8;
}
.privacy-note svg{flex:none;width:18px;height:18px;margin-top:3px}
.privacy-note strong{color:var(--ink)}

/* ============ CTA ============ */
.cta-card{
  display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(24px,3vw,40px);align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:20px;padding:clamp(26px,3.4vw,44px);
  box-shadow:var(--shadow-1);
}
.cta-card h2{margin-bottom:14px}
.cta-points{margin-top:18px}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--text-2);margin-bottom:10px}
.cta-points li::before{content:"";flex:none;width:8px;height:8px;margin-top:9px;border-radius:2px;background:var(--orange)}
.cta-actions{display:flex;flex-direction:column;gap:12px}
.cta-foot{margin-top:6px;font-size:13px;color:var(--text-3)}
.back-home{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--ink)}
.back-home:hover{color:var(--orange)}

/* ============ 悬浮入口 & 弹层 ============ */
.float-cta{
  position:fixed;right:20px;bottom:20px;z-index:1040;display:inline-flex;align-items:center;gap:9px;
  padding:13px 20px;border-radius:999px;background:var(--orange);color:#fff;font-size:14.5px;font-weight:600;
  box-shadow:var(--shadow-2);transition:transform .18s ease-out,background-color .18s ease-out;
}
.float-cta:hover{background:var(--orange-deep);color:#fff;transform:translateY(-1px)}
.float-cta::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--lime)}
.modal-content{border:0;border-radius:18px;box-shadow:var(--shadow-2);overflow:hidden}
.modal-header{border:0;padding:24px 26px 6px;align-items:flex-start}
.modal-header h2{font-size:21px}
.modal-header .modal-sub{font-size:13.5px;color:var(--text-2);margin:6px 0 0}
.modal-header .btn-close{background:none;opacity:.7;width:34px;height:34px;border-radius:10px;position:relative;padding:0}
.modal-header .btn-close::before,.modal-header .btn-close::after{
  content:"";position:absolute;left:10px;right:10px;top:16px;height:2px;background:var(--ink);border-radius:2px;
}
.modal-header .btn-close::before{transform:rotate(45deg)}
.modal-header .btn-close::after{transform:rotate(-45deg)}
.modal-body{padding:18px 26px 26px}
.form-row{margin-bottom:16px}
.form-label{display:block;font-size:13.5px;font-weight:600;color:var(--ink);margin-bottom:8px}
.form-control,.form-select{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-btn);border:1px solid var(--line);
  background:#fff;font-size:15px;color:var(--text);box-shadow:none;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
textarea.form-control{height:auto;min-height:96px;padding:12px 14px;line-height:1.8;resize:vertical}
.form-control::placeholder{color:var(--text-3)}
.form-control:focus,.form-select:focus{outline:0;border-color:var(--ink);box-shadow:0 0 0 4px rgba(11,43,36,.08)}
.form-select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--ink) 50%),linear-gradient(135deg,var(--ink) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.agree{display:flex;gap:10px;align-items:flex-start;margin:16px 0 14px;font-size:12.5px;color:var(--text-2);line-height:1.75}
.agree input{flex:none;width:16px;height:16px;margin-top:4px;accent-color:var(--orange)}
.modal-privacy{font-size:12.5px;color:var(--text-3);line-height:1.7;margin-top:12px;display:flex;gap:8px;align-items:flex-start}
.modal-privacy svg{flex:none;width:15px;height:15px;margin-top:3px}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:var(--rev);padding:clamp(48px,6vw,76px) 0 0;margin-top:clamp(40px,5vw,72px)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:clamp(24px,3vw,40px)}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-name{font-size:17px}
.site-footer p{color:rgba(242,245,240,.72);font-size:14px;line-height:1.85;max-width:340px}
.footer-col h4{color:var(--orange);font-size:14px;font-weight:600;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:rgba(242,245,240,.76)}
.footer-col ul a:hover{color:#fff}
.qr-box{
  margin-top:16px;width:118px;height:118px;border-radius:14px;border:1px dashed var(--line-dark);
  display:flex;align-items:center;justify-content:center;text-align:center;font-size:12.5px;
  color:rgba(242,245,240,.66);line-height:1.7;background:rgba(255,255,255,.04);
}
.footer-bottom{
  margin-top:clamp(32px,4vw,52px);padding:20px 0;border-top:1px solid var(--line-dark);
  text-align:center;font-size:13px;color:rgba(242,245,240,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .hero-inner{grid-template-columns:1.2fr .8fr}
}
@media (max-width:991px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:flex}
  .hero-inner{grid-template-columns:1fr;align-items:start}
  .hero-panel{order:2}
  .qa-side{grid-column:span 12;position:static}
  .qa-main{grid-column:span 12}
  .side-title{display:none}
  .anchor-nav{
    flex-direction:row;overflow-x:auto;gap:8px;border-left:0;padding-bottom:6px;
    -webkit-overflow-scrolling:touch;scrollbar-width:none;
  }
  .anchor-nav::-webkit-scrollbar{display:none}
  .anchor-nav a{
    white-space:nowrap;margin-left:0;padding:8px 16px;border:1px solid var(--line);border-radius:999px;
    background:#fff;font-size:14px;
  }
  .anchor-nav a.active{border-color:rgba(255,107,53,.45);background:rgba(255,107,53,.1);color:var(--orange)}
  .side-note{margin-top:16px}
  .tips-grid{grid-template-columns:1fr}
  .tip{border-left:0;padding:16px 0;border-top:1px solid var(--line-dark)}
  .tip:first-child{border-top:0;padding-top:0}
  .check-grid{grid-template-columns:1fr}
  .figure-wrap::after{display:none}
  .cta-card{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  .qa-list{padding:4px 18px}
  .qa-q{font-size:17px;padding:18px 0 18px 14px}
  .qa-a{padding:0 10px 20px 14px}
}
@media (max-width:575px){
  body{font-size:15.5px}
  .container{padding:0 16px}
  .nav-brand .brand-sub{display:none}
  .hero-actions .btn{width:100%}
  .hero-points{gap:8px 16px}
  .footer-grid{grid-template-columns:1fr}
  .float-cta{right:14px;bottom:14px;padding:12px 16px;font-size:13.5px}
  .modal-dialog{margin:0;align-items:flex-end;min-height:100%}
  .modal-content{border-radius:18px 18px 0 0}
  .modal-header{padding:20px 20px 4px}
  .modal-body{padding:16px 20px 24px}
}