/* roulang page: index */
:root{
  --primary:#1B5FA8;
  --primary-dark:#0F3E73;
  --primary-deep:#0E2C4A;
  --primary-50:#E8F0FA;
  --accent:#E8663C;
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --line:#E3EAF3;
  --text:#16202E;
  --muted:#5A6B80;
  --disabled:#A9B6C6;
  --success:#1E8E5A;
  --warn:#C9821B;
  --danger:#C0392B;
  --r-card:16px;
  --r-btn:10px;
  --r-img:14px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,62,115,.06);
  --sh-hover:0 14px 30px -14px rgba(27,95,168,.22);
  --sh-float:0 20px 48px -18px rgba(15,62,115,.30);
  --sidebar-w:248px;
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
ul,ol{list-style:none}
h1,h2,h3,h4{font-weight:700;letter-spacing:-.02em;line-height:1.25}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(27,95,168,.28);outline-offset:2px;border-radius:8px}

/* ---------- 容器与骨架 ---------- */
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 48px}
.section{padding:96px 0}
.section-tight{padding:48px 0}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{font-size:clamp(24px,3vw,34px);margin-top:14px}
.section-head p{color:var(--muted);margin-top:14px;max-width:62ch}
section[id]{scroll-margin-top:24px}

/* ---------- 左侧竖向导航 ---------- */
.sidebar{
  position:fixed;top:0;left:0;z-index:60;
  width:var(--sidebar-w);height:100vh;
  background:var(--surface);border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:26px 18px 22px;
}
.sidebar-brand{display:flex;align-items:center;gap:11px;padding:0 8px 20px;border-bottom:1px solid var(--line)}
.brand-mark{
  width:42px;height:42px;flex:none;border-radius:12px;
  background:var(--primary);
  display:grid;place-items:center;color:#fff;font-weight:800;font-size:18px;
  position:relative;overflow:hidden;
}
.brand-mark::after{
  content:"";position:absolute;right:-16px;bottom:-18px;width:44px;height:44px;
  border:2px solid rgba(255,255,255,.35);border-radius:50%;
}
.brand-name{font-size:20px;font-weight:800;line-height:1.2;letter-spacing:-.02em}
.brand-sub{font-size:12px;color:var(--muted);letter-spacing:.02em}
.nav-label{font-size:12px;color:#8A99AC;letter-spacing:.1em;margin:20px 10px 8px}
.nav-list{display:flex;flex-direction:column;gap:4px}
.nav-link{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:10px;
  font-size:14.5px;font-weight:500;color:#33445A;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.nav-link:hover{background:#F1F6FC;color:var(--primary);transform:translateY(-1px)}
.nav-link.active{background:var(--primary-50);color:var(--primary-dark);font-weight:600}
.nav-link.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:3px;background:var(--primary);
}
.nav-dot{width:6px;height:6px;border-radius:50%;background:var(--line);flex:none}
.nav-link.active .nav-dot,.nav-link:hover .nav-dot{background:var(--accent)}
.sidebar-foot{margin-top:auto;padding-top:20px}
.sidebar-cta{
  display:flex;align-items:center;justify-content:center;
  height:48px;border-radius:var(--r-btn);
  background:var(--primary);color:#fff;font-weight:600;font-size:15px;
  transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
  box-shadow:var(--sh-1);
}
.sidebar-cta:hover{background:#17518F;transform:translateY(-2px);box-shadow:var(--sh-hover)}
.sidebar-cta:active{transform:translateY(1px)}
.sidebar-note{margin-top:12px;font-size:12px;color:var(--muted);text-align:center;line-height:1.6}
.sidebar-note a{color:var(--primary);border-bottom:1px dashed rgba(27,95,168,.4)}

.site-main{margin-left:var(--sidebar-w)}

/* ---------- 移动端顶栏与抽屉 ---------- */
.mobile-bar{
  display:none;position:sticky;top:0;z-index:70;height:64px;
  background:rgba(255,255,255,.94);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;padding:0 20px;
}
.mobile-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px}
.mobile-brand .brand-mark{width:34px;height:34px;border-radius:10px;font-size:15px}
.menu-toggle{
  width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  display:grid;place-items:center;background:#fff;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--primary-dark);border-radius:2px;position:relative}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--primary-dark);border-radius:2px;
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.drawer-mask{
  position:fixed;inset:0;z-index:55;background:rgba(14,44,74,.42);
  opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility .28s var(--ease);
}
.drawer-mask.show{opacity:1;visibility:visible}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:#17518F;transform:translateY(-2px);box-shadow:var(--sh-hover)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--primary-dark);border:1px solid #C9D9EC}
.btn-ghost:hover{background:var(--primary-50);border-color:var(--primary);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--primary-dark)}
.btn-light:hover{background:#EAF1FA;transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-text{color:var(--primary);font-weight:600;font-size:14.5px;display:inline-flex;align-items:center;gap:6px}
.btn-text:hover{color:var(--primary-dark)}
.btn[disabled],.btn.is-disabled{opacity:.5;box-shadow:none;pointer-events:none}

/* ---------- 标签徽章 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:var(--r-pill);background:var(--primary-50);color:var(--primary);
  font-size:13px;font-weight:500;white-space:nowrap;
}
.tag-accent{background:rgba(232,102,60,.12);color:#B94A24}
.tag-line{background:#fff;border:1px solid var(--line);color:var(--muted)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;
  border-radius:var(--r-pill);background:var(--primary-50);color:var(--primary-dark);
  font-size:13px;font-weight:600;letter-spacing:.02em;
}

/* ---------- Hero ---------- */
.hero{padding:76px 0 96px;position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;top:-160px;right:-140px;width:520px;height:520px;
  border:2px solid rgba(27,95,168,.06);border-radius:50%;pointer-events:none;
}
.hero::after{
  content:"";position:absolute;top:120px;right:120px;width:280px;height:280px;
  border:2px solid rgba(232,102,60,.05);border-radius:50%;pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;position:relative;z-index:1}
.hero h1{font-size:clamp(32px,4.4vw,52px);font-weight:800;margin-top:20px;line-height:1.16}
.hero h1 em{font-style:normal;color:var(--primary);position:relative;white-space:nowrap}
.hero h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:4px;height:8px;
  background:rgba(232,102,60,.16);border-radius:4px;z-index:-1;
}
.hero-lead{margin-top:20px;font-size:17px;color:var(--muted);max-width:56ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-points{display:flex;flex-wrap:wrap;gap:20px;margin-top:28px;font-size:14px;color:var(--muted)}
.hero-points span{display:inline-flex;align-items:center;gap:7px}
.hero-points svg{color:var(--success);flex:none}
.hero-media-wrap{position:relative}
.hero-media{
  border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-float);background:#DCE7F4;
}
.hero-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.hero-stats{
  position:relative;z-index:2;margin:-34px 18px 0;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-hover);
  display:grid;grid-template-columns:repeat(3,1fr);
}
.hero-stat{padding:16px 12px;text-align:center;border-right:1px solid var(--line)}
.hero-stat:last-child{border-right:0}
.hero-stat b{display:block;font-size:22px;font-weight:800;color:var(--accent);letter-spacing:-.02em}
.hero-stat small{display:block;font-size:12.5px;color:var(--muted);margin-top:2px}

/* ---------- 入口状态条 ---------- */
.entry-bar{
  display:flex;align-items:center;gap:18px;flex-wrap:wrap;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 24px;box-shadow:var(--sh-1);
}
.status-dot{width:9px;height:9px;border-radius:50%;background:var(--success);flex:none;box-shadow:0 0 0 4px rgba(30,142,90,.14)}
.entry-bar p{font-size:14.5px;color:var(--muted);flex:1;min-width:220px}
.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:24px}
.entry-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.entry-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:#CFDFF1}
.entry-card h3{font-size:18px;margin:14px 0 8px}
.entry-card p{font-size:14.5px;color:var(--muted)}
.icon-box{
  width:44px;height:44px;border-radius:12px;background:var(--primary-50);
  display:grid;place-items:center;color:var(--primary);
}

/* ---------- 卖点区（1 宽 + 2 窄） ---------- */
.feature-grid{display:grid;grid-template-columns:1.3fr 1fr;grid-template-rows:auto auto;gap:24px}
.feature-wide{
  grid-row:span 2;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.feature-wide:hover{transform:translateY(-2px);box-shadow:var(--sh-hover)}
.feature-wide img{width:100%;aspect-ratio:16/9;object-fit:cover}
.feature-wide .fw-body{padding:28px}
.feature-wide h3{font-size:21px;margin-bottom:12px}
.feature-wide p{color:var(--muted);font-size:15px}
.feature-wide ul{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.feature-wide li,.plan li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:#32445C}
.feature-wide li svg,.plan li svg{flex:none;margin-top:5px;color:var(--primary)}
.feature-narrow{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.feature-narrow:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:#CFDFF1}
.feature-narrow h3{font-size:18px;margin:14px 0 8px}
.feature-narrow p{font-size:14.5px;color:var(--muted)}

/* ---------- 流程时间轴 ---------- */
.steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.steps::before{
  content:"";position:absolute;top:23px;left:6%;right:6%;height:1px;background:var(--line);
}
.step{position:relative;text-align:left}
.step-dot{
  width:46px;height:46px;border-radius:50%;background:#fff;border:1px solid var(--line);
  display:grid;place-items:center;font-weight:800;color:var(--primary);font-size:15px;
  position:relative;z-index:1;box-shadow:var(--sh-1);
}
.step h3{font-size:17px;margin:18px 0 8px}
.step p{font-size:14.5px;color:var(--muted)}

/* ---------- 证据区 ---------- */
.counters{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  background:var(--primary-dark);border-radius:20px;padding:34px 28px;color:#fff;
  position:relative;overflow:hidden;
}
.counters::after{
  content:"";position:absolute;right:-60px;top:-80px;width:260px;height:260px;
  border:2px solid rgba(255,255,255,.06);border-radius:50%;
}
.counter b{display:block;font-size:30px;font-weight:800;color:var(--accent);letter-spacing:-.02em}
.counter span{display:block;font-size:14px;color:#C6D6E8;margin-top:4px}
.track{
  display:grid;grid-auto-flow:column;grid-auto-columns:calc((100% - 48px)/3);
  gap:24px;overflow-x:auto;padding:28px 0 12px;scroll-snap-type:x mandatory;
  scrollbar-width:thin;
}
.track::-webkit-scrollbar{height:6px}
.track::-webkit-scrollbar-thumb{background:#D3E1F2;border-radius:99px}
.case-card{
  scroll-snap-align:start;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover)}
.case-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.case-body{padding:22px}
.case-body h3{font-size:17px;margin:12px 0 8px}
.case-body p{font-size:14.5px;color:var(--muted)}

/* ---------- 最新信息（CMS） ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:#CFDFF1}
.news-cover{background:#E9F0F9;border-bottom:1px solid var(--line)}
.news-cover img{width:100%;aspect-ratio:16/10;object-fit:cover}
.news-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-title{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-sum{font-size:14.5px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;font-size:13px;color:#8A99AC;
}
.news-meta .more{color:var(--primary);font-weight:600}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;
  background:var(--surface);border:1px dashed #D3E1F2;border-radius:var(--r-card);
}
.empty-state h3{font-size:18px;margin-bottom:10px}
.empty-state p{color:var(--muted);font-size:14.5px;margin-bottom:20px}

/* ---------- 方案 ---------- */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.plan{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px;box-shadow:var(--sh-1);position:relative;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.plan:hover{transform:translateY(-2px);box-shadow:var(--sh-hover)}
.plan h3{font-size:19px;margin-bottom:8px}
.plan .plan-desc{font-size:14.5px;color:var(--muted);min-height:48px}
.plan ul{margin:22px 0 26px;display:flex;flex-direction:column;gap:11px;border-top:1px solid var(--line);padding-top:22px}
.plan.featured{transform:translateY(-12px);border-color:var(--primary);box-shadow:var(--sh-hover)}
.plan.featured:hover{transform:translateY(-14px)}
.plan-badge{
  position:absolute;top:-13px;left:30px;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--accent);color:#fff;font-size:12.5px;font-weight:600;display:inline-flex;align-items:center;
}
.plan .btn{width:100%}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--line);
  border-radius:14px;overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item.open{border-left-color:var(--primary);box-shadow:var(--sh-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  text-align:left;padding:20px 24px;font-size:17px;font-weight:600;line-height:1.5;
}
.faq-q .chev{flex:none;color:var(--primary);transition:transform .24s var(--ease)}
.faq-item.open .faq-q .chev{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-item.open .faq-a{max-height:360px}
.faq-a p{padding:0 24px 22px;font-size:15.5px;line-height:1.8;color:var(--muted)}

/* ---------- 结尾 CTA ---------- */
.cta-band{
  background:var(--primary-deep);border-radius:20px;padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  color:#fff;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-70px;bottom:-110px;width:300px;height:300px;
  border:2px solid rgba(255,255,255,.07);border-radius:50%;
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);color:#fff;position:relative;z-index:1}
.cta-band p{color:#C6D6E8;font-size:15px;margin-top:12px;max-width:56ch;position:relative;z-index:1}
.cta-band .btn{position:relative;z-index:1}

/* ---------- 页脚 ---------- */
.footer{background:var(--primary-deep);color:#C6D6E8;padding:64px 0 0;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px}
.footer h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:0}
.footer p{font-size:14px;line-height:1.8;color:#A9BDD4}
.footer-links{display:flex;flex-direction:column;gap:2px}
.footer-links a{font-size:14px;padding:5px 0;color:#C6D6E8;transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-links a:hover{color:#fff;transform:translateX(3px)}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand .brand-mark{background:#17457C}
.footer-brand b{color:#fff;font-size:18px;letter-spacing:-.01em}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 26px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:#8FA6BF;
}
.footer-bottom a{color:#8FA6BF}
.footer-bottom a:hover{color:#fff}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:32px;bottom:32px;z-index:80;
  height:52px;padding:0 26px;border-radius:var(--r-pill);
  background:var(--primary);color:#fff;font-weight:600;font-size:15px;
  display:inline-flex;align-items:center;gap:8px;
  box-shadow:var(--sh-float);
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .28s var(--ease),transform .28s var(--ease),background .2s var(--ease);
}
.float-cta.show{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta:hover{background:#17518F}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--sidebar-w:220px}
  .container{padding:0 40px}
}
@media (max-width:1023px){
  .sidebar{
    left:auto;right:0;width:292px;border-right:0;border-left:1px solid var(--line);
    transform:translateX(100%);box-shadow:-20px 0 48px -24px rgba(15,62,115,.35);
    transition:transform .28s var(--ease);
  }
  .sidebar.open{transform:translateX(0)}
  .mobile-bar{display:flex}
  .site-main{margin-left:0}
  .container{padding:0 32px}
  .hero{padding:56px 0 72px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .feature-grid{grid-template-columns:1fr;grid-template-rows:none}
  .feature-wide{grid-row:auto}
  .steps{grid-template-columns:repeat(2,1fr);gap:32px 24px}
  .steps::before{display:none}
  .counters{grid-template-columns:repeat(2,1fr);gap:26px}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .plans{grid-template-columns:1fr;gap:20px}
  .plan.featured{transform:none}
  .plan.featured:hover{transform:translateY(-2px)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .track{grid-auto-columns:calc((100% - 24px)/2)}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .section-tight{padding:36px 0}
  .container{padding:0 20px}
  .entry-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .counters{grid-template-columns:1fr 1fr;padding:26px 22px}
  .counter b{font-size:26px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .track{grid-auto-columns:78%}
  .cta-band{padding:32px 24px}
  .footer{margin-top:64px}
  .hero-stats{margin:-26px 12px 0}
  .hero-stat b{font-size:19px}
}
@media (max-width:560px){
  body{font-size:15.5px}
  .hero h1{font-size:31px}
  .hero-lead{font-size:16px}
  .btn{width:100%}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;
    height:calc(56px + env(safe-area-inset-bottom));
    padding-bottom:env(safe-area-inset-bottom);
    justify-content:center;font-size:15px;
  }
  .float-cta.show{transform:translateY(0)}
  .footer{padding-bottom:56px}
  .cta-band .btn{width:100%}
  .sidebar{width:86vw}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .btn:hover,.nav-link:hover,.card:hover,.news-card:hover,.entry-card:hover,.feature-wide:hover,.feature-narrow:hover,.plan:hover,.case-card:hover{transform:none !important}
}

/* roulang page: article */
:root{
  --primary:#1B5FA8;
  --primary-dark:#0F3E73;
  --primary-deep:#0E2C4A;
  --primary-light:#E8F0FA;
  --accent:#E8663C;
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --line:#E3EAF3;
  --text:#16202E;
  --muted:#5A6B80;
  --disabled:#A9B6C6;
  --ok:#1E8E5A;
  --warn:#C9821B;
  --err:#C0392B;
  --r-card:16px;
  --r-btn:10px;
  --r-img:14px;
  --pill:999px;
  --sh-1:0 1px 2px rgba(15,62,115,.06);
  --sh-2:0 14px 30px -14px rgba(27,95,168,.22);
  --sh-3:0 20px 48px -18px rgba(15,62,115,.30);
  --t:.2s cubic-bezier(.4,0,.2,1);
  --sidebar:248px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
button{background:none;border:none;padding:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5,p{margin:0;}
:focus-visible{outline:3px solid rgba(27,95,168,.28);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;}

/* ============ 侧栏导航 ============ */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar);
  background:var(--surface);border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:24px 16px 22px;z-index:80;box-shadow:var(--sh-1);
}
.brand{
  display:flex;align-items:center;gap:10px;
  padding:0 6px 18px;border-bottom:1px solid var(--line);
}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#fff;font-weight:800;font-size:19px;
  display:grid;place-items:center;
}
.brand-text{display:flex;flex-direction:column;line-height:1.3;min-width:0;}
.brand-text b{font-size:18px;font-weight:800;letter-spacing:-.02em;color:var(--text);white-space:nowrap;}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);white-space:nowrap;}
.sidebar nav{margin-top:20px;flex:1 1 auto;overflow-y:auto;}
.nav-list{display:flex;flex-direction:column;gap:4px;}
.nav-link{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 14px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--muted);
  transition:background var(--t),color var(--t),transform var(--t);
}
.nav-link:hover{background:var(--primary-light);color:var(--primary);}
.nav-link:active{transform:translateY(1px);}
.nav-link.active{background:var(--primary-light);color:var(--primary-dark);font-weight:700;}
.nav-link.active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  border-radius:0 3px 3px 0;background:var(--primary);
}
.nav-dot{width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.5;flex:0 0 6px;}
.side-foot{margin-top:16px;padding-top:18px;border-top:1px solid var(--line);}
.side-note{margin-top:10px;font-size:12px;color:var(--muted);text-align:center;line-height:1.6;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--primary-dark);box-shadow:var(--sh-2);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{background:var(--surface);color:var(--primary-dark);border-color:#D8E3EF;}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-ghost:active{transform:translateY(1px);box-shadow:none;}
.btn-block{display:flex;width:100%;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none;box-shadow:none;}

.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--pill);background:var(--primary-light);
  color:var(--primary);font-size:13px;font-weight:600;white-space:nowrap;
}
.badge-accent{background:rgba(232,102,60,.12);color:#C24E28;}

/* ============ 移动端顶栏与抽屉 ============ */
.mobile-topbar{
  display:none;position:sticky;top:0;z-index:90;height:64px;
  background:rgba(255,255,255,.96);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;padding:0 20px;
}
.brand-mini{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:800;letter-spacing:-.02em;}
.brand-mini .brand-mark{width:34px;height:34px;flex:0 0 34px;border-radius:10px;font-size:16px;}
.hamburger{
  width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:10px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.hamburger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--primary-dark);transition:var(--t);}
.hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.hamburger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:#fff;z-index:120;transform:translateX(102%);
  transition:transform .28s cubic-bezier(.4,0,.2,1);
  padding:24px 18px;display:flex;flex-direction:column;overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:18px;}
.drawer-head b{font-size:17px;font-weight:800;letter-spacing:-.02em;}
.drawer-close{width:36px;height:36px;border:1px solid var(--line);border-radius:10px;font-size:18px;color:var(--muted);display:grid;place-items:center;transition:var(--t);}
.drawer-close:hover{border-color:var(--primary);color:var(--primary);}
.drawer .nav-list{flex:1 1 auto;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,44,74,.45);z-index:110;
  opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);
}
.drawer-mask.open{opacity:1;visibility:visible;}

/* ============ 主体框架 ============ */
.page{margin-left:var(--sidebar);padding-bottom:8px;}
.container{max-width:1180px;margin:0 auto;padding:0 48px;}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);padding:30px 0 0;
}
.breadcrumb a{transition:color var(--t);}
.breadcrumb a:hover{color:var(--primary);}
.crumb-sep{color:#C7D3E2;}

/* ============ 文章头部 ============ */
.article-head{padding:18px 0 30px;border-bottom:1px solid var(--line);margin-bottom:42px;}
.article-head h1{
  font-size:clamp(28px,3.6vw,42px);line-height:1.32;
  font-weight:800;letter-spacing:-.02em;color:var(--text);
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:20px;font-size:13px;color:var(--muted);}
.meta-row .sep{width:1px;height:14px;background:var(--line);}

/* ============ 文章布局 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,760px) 200px;
  gap:56px;align-items:start;
}

/* ============ 正文排版 ============ */
.article-body{font-size:18px;line-height:1.9;color:#22303F;max-width:760px;overflow-wrap:break-word;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 18px;}
.article-body h2{
  position:relative;margin:44px 0 18px;padding-left:16px;
  font-size:clamp(22px,2.4vw,27px);font-weight:800;line-height:1.42;
  letter-spacing:-.02em;color:var(--text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;
  border-radius:2px;background:var(--primary);
}
.article-body h3{margin:32px 0 14px;font-size:20px;font-weight:700;color:var(--text);}
.article-body h4{margin:24px 0 10px;font-size:17px;font-weight:700;color:var(--text);}
.article-body ul{margin:0 0 20px;padding-left:2px;}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:10px;}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:13px;width:6px;height:6px;
  border-radius:50%;background:var(--primary);
}
.article-body ol{margin:0 0 20px;padding-left:26px;list-style:decimal;}
.article-body ol li{padding-left:6px;margin-bottom:10px;}
.article-body ol li::marker{color:var(--primary);font-weight:700;}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;background:var(--primary-light);
  border-left:4px solid var(--primary);border-radius:0 12px 12px 0;
  color:var(--primary-dark);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  width:100%;height:auto;border-radius:var(--r-img);
  border:1px solid var(--line);margin:24px 0;background:var(--primary-light);
}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--primary-dark);}
.article-body strong{font-weight:700;color:var(--text);}
.article-body code{
  background:#EEF3F9;border-radius:6px;padding:2px 7px;font-size:15px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--primary-dark);
}
.article-body pre{
  background:#F1F5FA;border:1px solid var(--line);border-radius:12px;
  padding:18px;overflow-x:auto;margin:24px 0;
}
.article-body pre code{background:none;padding:0;font-size:14.5px;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15.5px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body th{background:var(--primary-light);color:var(--primary-dark);font-weight:700;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:36px 0;}

/* ============ 目录 ============ */
.toc{position:sticky;top:32px;}
.toc-title{
  font-size:12.5px;font-weight:700;letter-spacing:.1em;
  color:var(--muted);margin-bottom:14px;
}
.toc-list{border-left:1px solid var(--line);display:flex;flex-direction:column;}
.toc-list a{
  display:block;padding:6px 0 6px 14px;margin-left:-1px;
  border-left:2px solid transparent;font-size:13.5px;line-height:1.55;
  color:var(--muted);transition:color var(--t),border-color var(--t),background var(--t);
}
.toc-list a:hover{color:var(--primary);}
.toc-list a.is-active{
  color:var(--primary-dark);font-weight:600;border-left-color:var(--primary);
  background:linear-gradient(90deg,rgba(27,95,168,.07),transparent);
}

/* ============ 空态 ============ */
.empty-state{
  padding:56px 32px;border:1px dashed #D6E2F0;border-radius:var(--r-card);
  background:var(--surface);text-align:center;
}
.empty-state h2{font-size:20px;font-weight:800;margin-bottom:12px;color:var(--text);}
.empty-state p{color:var(--muted);font-size:15px;max-width:46ch;margin:0 auto 24px;line-height:1.8;}

/* ============ 返回与相关推荐 ============ */
.article-foot{margin-top:48px;padding-top:32px;border-top:1px solid var(--line);}
.related{padding:56px 0 24px;margin-top:56px;border-top:1px solid var(--line);}
.related-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:24px;}
.related-head h2{font-size:clamp(20px,2.4vw,26px);font-weight:800;letter-spacing:-.02em;}
.related-head a{font-size:14px;font-weight:600;color:var(--primary);transition:var(--t);}
.related-head a:hover{color:var(--primary-dark);}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rec-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.rec-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CFE0F2;}
.rec-card:active{transform:translateY(1px);}
.rec-cover{aspect-ratio:16/9;background:var(--primary-light);overflow:hidden;}
.rec-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s cubic-bezier(.4,0,.2,1);}
.rec-card:hover .rec-cover img{transform:scale(1.045);}
.rec-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.rec-body h3{font-size:16px;font-weight:700;line-height:1.55;color:var(--text);}
.rec-body time{font-size:13px;color:var(--muted);margin-top:auto;}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:32px;bottom:32px;z-index:100;
  height:52px;padding:0 24px;border-radius:var(--pill);
  background:var(--primary);color:#fff;font-size:15px;font-weight:600;
  display:inline-flex;align-items:center;gap:8px;
  box-shadow:var(--sh-3);opacity:0;transform:translateY(14px);
  pointer-events:none;transition:opacity var(--t),transform var(--t),background var(--t);
}
.float-cta.show{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta:hover{background:var(--primary-dark);transform:translateY(-2px);}
.float-cta:active{transform:translateY(1px);}

/* ============ 页脚 ============ */
.footer{background:var(--primary-deep);color:#B9C9DC;margin-top:72px;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;color:#fff;}
.footer-brand .brand-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:10px;font-size:17px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);
}
.footer-brand b{font-size:17px;font-weight:800;letter-spacing:-.02em;}
.footer p{font-size:14px;line-height:1.85;color:#9FB4CC;}
.footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:#B9C9DC;transition:color var(--t);}
.footer-links a:hover{color:#fff;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;justify-content:space-between;
  gap:12px;font-size:13px;color:#8FA6BF;flex-wrap:wrap;
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--sidebar:220px;}
  .container{padding:0 32px;}
  .article-layout{grid-template-columns:minmax(0,1fr) 188px;gap:40px;}
}
@media (max-width:1023px){
  .sidebar{display:none;}
  .mobile-topbar{display:flex;}
  .page{margin-left:0;}
  .container{padding:0 32px;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;}
  .toc{display:none;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .float-cta{
    left:16px;right:16px;bottom:16px;height:56px;
    justify-content:center;opacity:1;transform:none;pointer-events:auto;padding:0 20px;
  }
  .float-cta:hover{transform:none;}
  .page{padding-bottom:76px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .article-body{font-size:17px;line-height:1.86;}
  .article-head{padding-top:12px;margin-bottom:32px;}
  .breadcrumb{padding-top:20px;}
  .related-grid{grid-template-columns:1fr;gap:18px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer{margin-top:56px;padding-top:48px;}
  .article-layout{gap:0;}
}
@media (max-width:520px){
  .article-head h1{font-size:25px;}
  .meta-row{gap:10px;font-size:12.5px;}
  .btn{height:46px;padding:0 18px;font-size:14px;}
  .article-foot .btn{display:flex;width:100%;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .empty-state{padding:40px 20px;}
  .article-body h2{font-size:21px;margin-top:36px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important;}
  .btn:hover,.rec-card:hover,.float-cta:hover{transform:none;}
}

/* roulang page: category1 */
:root{
  --primary:#1B5FA8;
  --primary-dark:#0F3E73;
  --primary-deep:#0E2C4A;
  --primary-light:#E8F0FA;
  --accent:#E8663C;
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --line:#E3EAF3;
  --text:#16202E;
  --muted:#5A6B80;
  --disabled:#A9B6C6;
  --ok:#1E8E5A;
  --warn:#C9821B;
  --err:#C0392B;
  --r-card:16px;
  --r-btn:10px;
  --r-img:14px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,62,115,.06);
  --sh-2:0 14px 30px -14px rgba(27,95,168,.22);
  --sh-3:0 20px 48px -18px rgba(15,62,115,.30);
  --ease:cubic-bezier(.4,0,.2,1);
  --side-w:248px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:solid;border-width:0;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.28;}
p{margin:0;}
:focus-visible{outline:3px solid rgba(27,95,168,.28);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(27,95,168,.16);}

.container{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 48px;
}

/* ---------- 布局骨架 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;
  width:var(--side-w);
  background:var(--surface);
  border-right:1px solid var(--line);
  padding:26px 20px 22px;
  display:flex;flex-direction:column;
  z-index:60;
}
.sidebar-brand{display:flex;align-items:center;gap:12px;}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:12px;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
  color:#fff;display:grid;place-items:center;font-size:19px;font-weight:800;letter-spacing:0;
}
.sidebar-brand b{display:block;font-size:20px;line-height:1.2;letter-spacing:-.02em;}
.sidebar-brand .sub{display:block;font-size:12px;color:var(--muted);letter-spacing:.02em;}
.side-label{
  margin:26px 0 10px;font-size:12px;letter-spacing:.14em;color:var(--disabled);font-weight:600;
}
.nav-list{display:flex;flex-direction:column;gap:4px;}
.nav-link{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--text);
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.nav-dot{width:6px;height:6px;border-radius:50%;background:var(--disabled);flex:0 0 6px;transition:background .2s var(--ease);}
.nav-link:hover{background:var(--primary-light);color:var(--primary-dark);}
.nav-link:active{transform:translateY(1px);}
.nav-link.active{background:var(--primary-light);color:var(--primary-dark);font-weight:600;}
.nav-link.active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:3px;background:var(--primary);
}
.nav-link.active .nav-dot{background:var(--accent);}
.side-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line);}
.side-foot p{font-size:12.5px;color:var(--muted);line-height:1.7;margin-bottom:14px;}
.side-note{font-size:12.5px;color:var(--muted);}
.side-note a{color:var(--primary);border-bottom:1px dashed rgba(27,95,168,.4);}
.side-note a:hover{color:var(--primary-dark);}

.main-wrap{margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column;}
main{flex:1;}

/* ---------- 顶部移动导航 ---------- */
.topbar{display:none;}
.hamburger{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;gap:4px;align-content:center;
}
.hamburger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--primary-dark);}
.hamburger:hover{background:var(--primary-light);}

.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:#fff;z-index:90;padding:22px 20px;
  display:flex;flex-direction:column;
  transform:translateX(102%);
  transition:transform .28s var(--ease);
  box-shadow:var(--sh-3);
}
.drawer.open{transform:none;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;font-size:18px;color:var(--muted);}
.drawer-close:hover{background:var(--primary-light);color:var(--primary-dark);}
.drawer .nav-link{height:48px;}
.drawer-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line);}
.scrim{
  position:fixed;inset:0;background:rgba(14,44,74,.42);
  opacity:0;visibility:hidden;z-index:80;transition:opacity .25s var(--ease),visibility .25s;
}
.scrim.open{opacity:1;visibility:visible;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:#17518F;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{background:#fff;color:var(--primary-dark);border:1px solid #D8E3EF;}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);box-shadow:var(--sh-1);}
.btn-ghost:active{transform:translateY(1px);box-shadow:none;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14px;font-weight:600;
}
.link-arrow svg{transition:transform .2s var(--ease);}
.link-arrow:hover{color:var(--primary-dark);}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- 浮动入口 ---------- */
.float-cta{
  position:fixed;right:32px;bottom:32px;z-index:75;
  height:48px;padding:0 24px;border-radius:var(--r-pill);
  background:var(--primary);color:#fff;font-size:15px;font-weight:600;
  display:inline-flex;align-items:center;gap:8px;
  box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s,background .2s var(--ease);
}
.float-cta.show{opacity:1;visibility:visible;transform:none;}
.float-cta:hover{background:#17518F;}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section.tint{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:62ch;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--primary-light);color:var(--primary-dark);
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.eyebrow::before{content:"";width:14px;height:2px;border-radius:2px;background:var(--accent);}
h2{font-size:clamp(24px,3vw,34px);margin-top:16px;}
h3{font-size:19px;}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px;}
.lead{font-size:17px;color:var(--muted);line-height:1.8;}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);margin-bottom:20px;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb span.sep{color:var(--disabled);}
.breadcrumb .cur{color:var(--primary-dark);font-weight:500;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#EDF3FC 0%,#F6F8FB 82%);
  border-bottom:1px solid var(--line);
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-160px;width:520px;height:520px;
  border:40px solid var(--primary);border-radius:50%;opacity:.05;pointer-events:none;
}
.hero-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
  padding:72px 0 76px;
}
.hero h1{font-size:clamp(32px,4.4vw,52px);font-weight:800;margin:18px 0 0;}
.hero .lead{margin-top:18px;max-width:56ch;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--line);
  box-shadow:var(--sh-3);background:var(--primary-light);
}
.hero-visual .caption{
  margin-top:12px;font-size:13px;color:var(--muted);text-align:center;
}
.stat-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;margin-top:40px;padding-top:26px;border-top:1px solid rgba(27,95,168,.16);
}
.stat-strip li b{
  display:block;font-size:clamp(20px,2.2vw,26px);font-weight:800;color:var(--accent);letter-spacing:-.02em;
}
.stat-strip li span{display:block;font-size:13px;color:var(--muted);margin-top:4px;}

/* ---------- 入口方式 ---------- */
.entry-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:start;}
.entry-list{display:flex;flex-direction:column;gap:14px;}
.entry-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 26px;box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.entry-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D5E2F2;}
.entry-item .no{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:9px;background:var(--primary-light);
  color:var(--primary-dark);font-size:13px;font-weight:700;margin-bottom:12px;
}
.entry-item h3{margin-bottom:8px;}
.entry-item p{color:var(--muted);font-size:15px;}
.entry-aside{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);
}
.entry-aside img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);
  border:1px solid var(--line);background:var(--primary-light);margin-bottom:20px;
}
.entry-aside h3{margin-bottom:12px;}
.check-list{display:flex;flex-direction:column;gap:10px;}
.check-list li{position:relative;padding-left:22px;font-size:15px;color:var(--muted);}
.check-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:3px;
  background:var(--primary);opacity:.75;
}

/* ---------- 图文交错 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.split + .split{margin-top:72px;}
.split-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--line);
  box-shadow:var(--sh-1);background:var(--primary-light);
}
.split.reverse .split-media{order:2;}
.split-body h3{font-size:clamp(20px,2.2vw,24px);}
.split-body p{margin-top:14px;color:var(--muted);font-size:16px;max-width:54ch;}
.split-body .check-list{margin-top:20px;}
.split-index{
  font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.16em;display:block;margin-bottom:10px;
}

/* ---------- 步骤时间轴 ---------- */
.timeline{display:flex;flex-direction:column;gap:0;}
.step{
  display:grid;grid-template-columns:56px 1fr;gap:22px;position:relative;padding-bottom:34px;
}
.step:last-child{padding-bottom:0;}
.step::before{
  content:"";position:absolute;left:27px;top:56px;bottom:6px;width:1px;background:var(--line);
}
.step:last-child::before{display:none;}
.step-node{
  width:56px;height:56px;border-radius:16px;background:var(--surface);
  border:1px solid var(--line);display:grid;place-items:center;
  font-size:16px;font-weight:800;color:var(--primary-dark);box-shadow:var(--sh-1);z-index:1;
}
.step-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 26px;box-shadow:var(--sh-1);
}
.step-card h3{font-size:18px;margin-bottom:8px;}
.step-card p{color:var(--muted);font-size:15px;}

/* ---------- 提示卡 ---------- */
.notice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.notice{
  background:var(--primary-light);border:1px solid #D9E6F7;border-radius:var(--r-card);
  padding:26px 28px;
}
.notice h3{font-size:17px;color:var(--primary-dark);margin-bottom:10px;display:flex;align-items:center;gap:10px;}
.notice h3::before{
  content:"";width:8px;height:8px;border-radius:50%;background:var(--accent);flex:0 0 8px;
}
.notice p{font-size:15px;color:#3C5470;}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:12px;max-width:860px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item:hover{border-color:#D5E2F2;}
.faq-item.open{box-shadow:var(--sh-2);border-color:#D5E2F2;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 26px 20px 28px;text-align:left;font-size:17px;font-weight:600;position:relative;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:var(--primary);opacity:0;transition:opacity .2s var(--ease);
}
.faq-item.open .faq-q::before{opacity:1;}
.faq-icon{
  position:relative;width:20px;height:20px;flex:0 0 20px;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:2px;right:2px;top:9px;height:2px;border-radius:2px;
  background:var(--primary);transition:transform .25s var(--ease);
}
.faq-icon::after{transform:rotate(90deg);}
.faq-item.open .faq-icon::after{transform:rotate(0deg);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s var(--ease);
}
.faq-a p{
  padding:0 28px 24px;color:var(--muted);font-size:15.5px;line-height:1.85;max-width:62ch;
}

/* ---------- 结尾 CTA ---------- */
.cta-band{
  background:linear-gradient(135deg,var(--primary-deep) 0%,var(--primary-dark) 100%);
  border-radius:20px;padding:52px 56px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);color:#fff;margin-top:0;}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.76);max-width:52ch;font-size:15.5px;}
.cta-band .actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-band .btn-primary{background:var(--accent);}
.cta-band .btn-primary:hover{background:#D4572F;}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.38);}
.cta-band .btn-ghost:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.08);}

/* ---------- 页脚 ---------- */
.footer{background:var(--primary-deep);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  background:rgba(255,255,255,.12);color:#fff;font-size:17px;
}
.footer-brand b{color:#fff;font-size:18px;letter-spacing:-.02em;}
.footer p{font-size:14px;line-height:1.85;}
.footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s var(--ease);}
.footer-links a:hover{color:#fff;}
.footer-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--side-w:220px;}
  .container{padding:0 32px;}
  .hero-inner{gap:40px;}
  .split{gap:40px;}
}
@media (max-width:1023px){
  .sidebar{display:none;}
  .main-wrap{margin-left:0;}
  .topbar{
    display:flex;position:sticky;top:0;z-index:70;height:64px;
    align-items:center;justify-content:space-between;gap:14px;padding:0 20px;
    background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);
  }
  .topbar-brand{display:flex;align-items:center;gap:10px;}
  .topbar-brand .brand-mark{width:36px;height:36px;flex:0 0 36px;border-radius:10px;font-size:16px;}
  .topbar-brand b{font-size:17px;letter-spacing:-.02em;}
  .container{padding:0 32px;}
  .section{padding:80px 0;}
  .entry-grid{grid-template-columns:1fr;}
  .hero-inner{grid-template-columns:1fr;padding:52px 0 60px;}
  .hero-visual{order:2;}
  .split{grid-template-columns:1fr;gap:28px;}
  .split.reverse .split-media{order:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .hero::after{display:none;}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  .notice-grid{grid-template-columns:1fr;}
  .split + .split{margin-top:52px;}
  .cta-band{padding:36px 28px;border-radius:16px;}
  .footer{padding-top:52px;margin-top:64px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .step{grid-template-columns:44px 1fr;gap:16px;}
  .step-node{width:44px;height:44px;border-radius:13px;font-size:14px;}
  .step::before{left:21px;top:44px;}
  .step-card{padding:20px;}
  .faq-q{padding:18px 20px 18px 22px;font-size:16px;}
  .faq-a p{padding:0 22px 20px;}
  .entry-item{padding:22px;}
}
@media (max-width:560px){
  body{font-size:15.5px;}
  h2{font-size:24px;}
  .hero h1{font-size:31px;}
  .btn{height:46px;width:100%;}
  .btn-sm{width:auto;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .cta-band .actions{width:100%;flex-direction:column;}
  .entry-aside{padding:22px;}
  .float-cta{
    left:0;right:0;bottom:0;height:56px;border-radius:0;justify-content:center;
    opacity:1;visibility:visible;transform:none;padding:0 18px;
    padding-bottom:env(safe-area-inset-bottom);
  }
  .main-wrap{padding-bottom:56px;}
  .cta-band{margin-bottom:8px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .nav-link:active,.btn:hover,.btn:active,.entry-item:hover,.float-cta{transform:none !important;}
}

/* roulang page: category3 */
:root{
  --primary:#1B5FA8;
  --primary-hover:#17518F;
  --primary-dark:#0F3E73;
  --primary-deep:#0E2C4A;
  --primary-light:#E8F0FA;
  --accent:#E8663C;
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --line:#E3EAF3;
  --text:#16202E;
  --muted:#5A6B80;
  --disabled:#A9B6C6;
  --ok:#1E8E5A;
  --warn:#C9821B;
  --err:#C0392B;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:14px;
  --shadow-1:0 1px 2px rgba(15,62,115,.06);
  --shadow-2:0 14px 30px -14px rgba(27,95,168,.22);
  --shadow-3:0 20px 48px -18px rgba(15,62,115,.30);
  --ease:cubic-bezier(.4,0,.2,1);
  --sidebar-w:248px;
}
*,*::before,*::after{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;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.28;letter-spacing:-.02em}
p{margin:0}
b,strong{font-weight:700}
:focus-visible{outline:3px solid rgba(27,95,168,.28);outline-offset:2px;border-radius:6px}
b,span.num,.stat b{font-variant-numeric:tabular-nums}

/* ============ 侧栏 ============ */
.sidebar{
  position:fixed;top:0;left:0;width:var(--sidebar-w);height:100vh;
  background:var(--surface);
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:26px 20px 22px;
  z-index:60;
}
.brand{display:flex;align-items:center;gap:12px;padding:0 6px 0 4px}
.brand-mark{
  width:44px;height:44px;flex:0 0 44px;border-radius:13px;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
  color:#fff;font-size:19px;font-weight:800;
  display:grid;place-items:center;
  box-shadow:0 8px 18px -10px rgba(27,95,168,.75);
}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-text b{font-size:20px;font-weight:800;letter-spacing:-.03em;line-height:1.25;color:var(--text)}
.brand-text em{font-style:normal;font-size:12.5px;color:var(--muted);letter-spacing:.02em;margin-top:2px}
.side-nav{margin-top:34px;flex:1 1 auto;min-height:0}
.side-label{font-size:12.5px;font-weight:600;letter-spacing:.08em;color:var(--disabled);padding:0 12px 10px}
.nav-list{display:flex;flex-direction:column;gap:4px}
.nav-link{
  display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:10px;
  font-size:15px;color:#3D4C60;
  border-left:3px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.nav-dot{width:6px;height:6px;border-radius:50%;background:#C7D5E5;flex:0 0 6px;transition:background .2s var(--ease),transform .2s var(--ease)}
.nav-link:hover{background:var(--primary-light);color:var(--primary-dark)}
.nav-link:hover .nav-dot{background:var(--primary)}
.nav-link.active{background:var(--primary-light);color:var(--primary-dark);font-weight:600;border-left-color:var(--primary)}
.nav-link.active .nav-dot{background:var(--accent);transform:scale(1.15)}
.side-cta{margin-top:24px;padding-top:20px;border-top:1px solid var(--line)}
.side-note{margin-top:12px;font-size:12.5px;line-height:1.7;color:var(--disabled)}

/* ============ 移动端顶部条与抽屉 ============ */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:64px;
  background:rgba(255,255,255,.96);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;
  padding:0 16px;z-index:70;
}
.topbar .brand-mark{width:36px;height:36px;flex:0 0 36px;border-radius:10px;font-size:16px}
.topbar .brand-text b{font-size:16.5px}
.topbar .brand-text em{font-size:11.5px}
.menu-btn{
  width:42px;height:42px;border-radius:11px;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--primary-dark);background:#fff;
}
.menu-btn:hover{background:var(--primary-light)}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,320px);
  background:#fff;border-left:1px solid var(--line);
  box-shadow:var(--shadow-3);
  transform:translateX(102%);transition:transform .3s var(--ease);
  z-index:90;display:flex;flex-direction:column;
  padding:24px 18px 20px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);display:grid;place-items:center;color:var(--muted)}
.drawer .nav-link{height:48px;font-size:15.5px}
.drawer-cta{margin-top:auto;padding-top:22px;border-top:1px solid var(--line)}
.backdrop{
  position:fixed;inset:0;background:rgba(14,44,74,.42);
  opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);z-index:80;
}
.backdrop.show{opacity:1;visibility:visible}

/* ============ 主区域 ============ */
.main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 48px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ============ 面包屑与徽标 ============ */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:22px;flex-wrap:wrap}
.breadcrumb a{color:rgba(255,255,255,.9);border-bottom:1px solid transparent;transition:border-color .2s var(--ease)}
.breadcrumb a:hover{border-bottom-color:rgba(255,255,255,.7)}
.breadcrumb span[aria-current]{color:#fff;font-weight:600}
.pill{
  display:inline-flex;align-items:center;gap:8px;height:26px;padding:0 13px;
  border-radius:999px;background:rgba(255,255,255,.14);color:#fff;
  font-size:13px;font-weight:600;letter-spacing:.04em;
}
.pill .dot{width:6px;height:6px;border-radius:50%;background:var(--accent)}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:999px;
  background:var(--primary-light);color:var(--primary);font-size:13px;font-weight:600;
}
.tag-ok{background:rgba(30,142,90,.12);color:var(--ok)}
.tag-warn{background:rgba(201,130,27,.14);color:var(--warn)}
.tag-accent{background:rgba(232,102,60,.13);color:#C4522E}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:48px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--primary-hover);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(-1px)}
.btn-ghost{border:1px solid rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.13);transform:translateY(-2px)}
.btn-outline{border:1px solid #C9DAEC;background:#fff;color:var(--primary-dark)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}

/* ============ Hero ============ */
.hero{
  position:relative;
  background-color:var(--primary-dark);
  background-image:linear-gradient(120deg,rgba(11,42,78,.94) 0%,rgba(15,62,115,.88) 52%,rgba(27,95,168,.76) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  color:#fff;
  padding:74px 0 84px;
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-140px;bottom:-160px;width:520px;height:520px;
  border-radius:50%;border:1px solid rgba(255,255,255,.06);
  box-shadow:0 0 0 60px rgba(255,255,255,.03);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:840px}
.hero h1{font-size:clamp(32px,4.4vw,52px);margin:20px 0 18px;line-height:1.2}
.hero-sub{font-size:17px;line-height:1.85;color:rgba(255,255,255,.86);max-width:62ch}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px}
.stat-bar{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;
  margin-top:52px;padding-top:30px;border-top:1px solid rgba(255,255,255,.18);
}
.stat b{display:block;font-size:clamp(24px,2.6vw,32px);font-weight:800;color:var(--accent);line-height:1.2}
.stat span{display:block;font-size:13.5px;color:rgba(255,255,255,.72);margin-top:4px}

/* ============ 区块标题 ============ */
.section-head{max-width:62ch;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--primary);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px}
.section-head h2{font-size:clamp(24px,3vw,34px);margin-bottom:16px}
.section-head p{font-size:16px;color:var(--muted);line-height:1.85}

/* ============ 特性矩阵 ============ */
.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.feature-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D3E2F2}
.feature-icon{
  width:46px;height:46px;border-radius:13px;background:var(--primary-light);
  display:grid;place-items:center;color:var(--primary);margin-bottom:20px;
}
.feature-card h3{font-size:19px;margin-bottom:10px}
.feature-card p{font-size:15px;color:var(--muted);line-height:1.8}
.feature-meta{margin-top:18px;display:flex;gap:8px;flex-wrap:wrap}

/* ============ 标签筛选 + 场馆卡 ============ */
.chips{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:30px}
.chip{
  height:36px;padding:0 16px;border-radius:999px;border:1px solid var(--line);
  background:#fff;color:var(--muted);font-size:14px;display:inline-flex;align-items:center;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.chip:hover{border-color:var(--primary);color:var(--primary)}
.chip.active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}
.venue-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.venue-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.venue-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.venue-card.is-hidden{display:none}
.venue-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--primary-light)}
.venue-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.venue-card:hover .venue-thumb img{transform:scale(1.04)}
.venue-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.venue-body h3{font-size:17.5px}
.venue-body p{font-size:14.5px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.venue-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13.5px;color:var(--muted);padding-top:6px}

/* ============ 步骤时间轴 ============ */
.steps{position:relative;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.steps::before{
  content:"";position:absolute;top:22px;left:8%;right:8%;height:2px;background:var(--line);border-radius:2px;
}
.step{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:26px;box-shadow:var(--shadow-1)}
.step-num{
  width:44px;height:44px;border-radius:50%;background:var(--primary);color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:15px;
  box-shadow:0 10px 20px -10px rgba(27,95,168,.8);margin-bottom:18px;position:relative;z-index:2;
}
.step h3{font-size:17.5px;margin-bottom:9px}
.step p{font-size:14.5px;color:var(--muted);line-height:1.78}

/* ============ 赛程列表 ============ */
.schedule-list{display:flex;flex-direction:column;gap:14px}
.schedule-row{
  display:grid;grid-template-columns:96px 1fr auto;align-items:center;gap:24px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px 26px;box-shadow:var(--shadow-1);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease);
}
.schedule-row:hover{border-color:#D3E2F2;box-shadow:var(--shadow-2);transform:translateY(-2px)}
.date-chip{
  width:96px;border-radius:12px;background:var(--primary-light);
  padding:10px 0;text-align:center;color:var(--primary-dark);
}
.date-chip b{display:block;font-size:22px;font-weight:800;line-height:1.15;color:var(--primary)}
.date-chip span{font-size:12.5px;color:var(--muted)}
.schedule-main h3{font-size:17px;margin-bottom:6px}
.schedule-main p{font-size:14.5px;color:var(--muted)}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:4px 26px;box-shadow:var(--shadow-1);border-left:3px solid transparent;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item[open]{border-left-color:var(--primary);box-shadow:var(--shadow-2)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 0;
  font-size:17px;font-weight:600;color:var(--text);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";width:10px;height:10px;flex:0 0 10px;
  border-right:2px solid var(--disabled);border-bottom:2px solid var(--disabled);
  transform:rotate(45deg);transition:transform .25s var(--ease),border-color .25s var(--ease);
  margin-top:-4px;
}
.faq-item[open] summary{color:var(--primary-dark)}
.faq-item[open] summary::after{transform:rotate(-135deg);border-color:var(--primary);margin-top:4px}
.faq-body{padding:0 0 22px;font-size:15.5px;line-height:1.85;color:var(--muted);max-width:68ch}

/* ============ CTA 带 ============ */
.cta-band{
  background:linear-gradient(115deg,var(--primary-dark) 0%,var(--primary-deep) 100%);
  border-radius:20px;padding:52px 48px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:300px;height:300px;border-radius:50%;
  border:1px solid rgba(255,255,255,.09);box-shadow:0 0 0 40px rgba(255,255,255,.04);
}
.cta-band h2{font-size:clamp(22px,2.4vw,28px);margin-bottom:12px;position:relative;z-index:2}
.cta-band p{font-size:15.5px;color:rgba(255,255,255,.78);max-width:56ch;position:relative;z-index:2}
.cta-band .btn{position:relative;z-index:2}

/* ============ 浮动 CTA ============ */
.floating-cta{
  position:fixed;right:32px;bottom:32px;z-index:75;
  display:inline-flex;align-items:center;gap:9px;
  height:50px;padding:0 24px;border-radius:999px;
  background:var(--primary);color:#fff;font-size:15px;font-weight:600;
  box-shadow:var(--shadow-3);
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .28s var(--ease),transform .28s var(--ease),background-color .2s var(--ease);
}
.floating-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
.floating-cta:hover{background:var(--primary-hover);transform:translateY(-2px)}

/* ============ 页脚 ============ */
.footer{background:var(--primary-deep);color:rgba(255,255,255,.72);padding:76px 0 0;margin-top:auto}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand .brand-mark{background:linear-gradient(135deg,var(--primary) 0%,#2E7CC4 100%);box-shadow:none}
.footer-brand b{font-size:18px;color:#fff;font-weight:800}
.footer p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.66)}
.footer h4{font-size:16px;color:#fff;margin-bottom:18px;font-weight:700}
.footer-links{display:flex;flex-direction:column;gap:4px}
.footer-links a{font-size:14.5px;color:rgba(255,255,255,.72);padding:5px 0;transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-links a:hover{color:#fff;transform:translateX(2px)}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.14);
  padding:22px 0;display:flex;align-items:center;justify-content:space-between;
  gap:12px;flex-wrap:wrap;font-size:13.5px;color:rgba(255,255,255,.55);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--sidebar-w:220px}
  .container{padding:0 36px}
  .venue-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .topbar{display:flex}
  .main{margin-left:0;padding-top:64px}
  .container{padding:0 32px}
  .section{padding:72px 0}
  .hero{padding:56px 0 68px}
  .feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .venue-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps::before{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .stat-bar{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .feature-grid,.venue-grid,.steps{grid-template-columns:1fr}
  .schedule-row{grid-template-columns:1fr;gap:14px;padding:20px}
  .date-chip{width:auto;display:inline-flex;align-items:baseline;gap:6px;padding:6px 14px;justify-self:start}
  .date-chip b{display:inline;font-size:16px}
  .cta-band{padding:36px 24px;border-radius:16px}
  .footer{padding-bottom:76px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .floating-cta{
    left:0;right:0;bottom:0;height:56px;border-radius:0;
    justify-content:center;opacity:1;transform:none;pointer-events:auto;
    padding-bottom:env(safe-area-inset-bottom);
  }
  .floating-cta:hover{transform:none}
}
@media (max-width:560px){
  body{font-size:15.5px}
  .hero h1{font-size:30px}
  .hero-sub{font-size:15.5px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .btn{width:100%}
  .btn-block{width:100%}
  .stat-bar{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .btn:hover,.feature-card:hover,.venue-card:hover,.schedule-row:hover,.floating-cta:hover{transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --primary:#1B5FA8;
  --primary-dark:#0F3E73;
  --primary-deep:#0E2C4A;
  --primary-light:#E8F0FA;
  --accent:#E8663C;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --border:#E3EAF3;
  --border-strong:#D8E3EF;
  --text:#16202E;
  --muted:#5A6B80;
  --disabled:#A9B6C6;
  --success:#1E8E5A;
  --warning:#C9821B;
  --danger:#C0392B;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:14px;
  --shadow-1:0 1px 2px rgba(15,62,115,.06);
  --shadow-2:0 14px 30px -14px rgba(27,95,168,.22);
  --shadow-3:0 20px 48px -18px rgba(15,62,115,.30);
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{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;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:solid;border-width:1px;border-color:var(--border)}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{font-weight:800;letter-spacing:-.02em;line-height:1.3}
:focus-visible{outline:3px solid rgba(27,95,168,.28);outline-offset:2px;border-radius:6px}
.skip-link{position:absolute;left:-9999px;top:0;background:#fff;padding:12px 18px;border-radius:10px;z-index:400;box-shadow:var(--shadow-2);font-size:14px}
.skip-link:focus{left:16px;top:16px}

/* ---------- 布局骨架 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:248px;
  background:#fff;border-right:1px solid var(--border);
  display:flex;flex-direction:column;z-index:50;
}
.sidebar-brand{display:flex;align-items:center;gap:12px;padding:24px 20px;border-bottom:1px solid var(--border)}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:18px;letter-spacing:0;
}
.brand-text b{display:block;font-size:19px;font-weight:800;line-height:1.2;letter-spacing:-.02em}
.brand-text span{display:block;font-size:12px;color:var(--muted);letter-spacing:.02em;margin-top:2px}
.sidebar-scroll{flex:1;overflow-y:auto;padding:20px 12px}
.sidebar-scroll::-webkit-scrollbar{width:6px}
.sidebar-scroll::-webkit-scrollbar-thumb{background:#DCE6F2;border-radius:3px}
.nav-label{font-size:12px;color:var(--disabled);letter-spacing:.08em;padding:0 12px;margin:18px 0 8px}
.nav-label:first-child{margin-top:0}
.nav-list li{margin-bottom:2px}
.nav-link{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:10px;
  font-size:15px;color:var(--muted);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-link:hover{background:var(--primary-light);color:var(--primary)}
.nav-link.active{background:var(--primary-light);color:var(--primary);font-weight:600}
.nav-link.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:0 3px 3px 0;background:var(--primary);
}
.nav-dot{width:6px;height:6px;flex:0 0 6px;border-radius:50%;background:var(--disabled);transition:background .2s var(--ease)}
.nav-link:hover .nav-dot{background:var(--primary)}
.nav-link.active .nav-dot{background:var(--accent)}
.anchor-list a{display:block;padding:8px 12px;border-radius:8px;font-size:14px;color:var(--muted);transition:background .2s var(--ease),color .2s var(--ease)}
.anchor-list a:hover{background:var(--primary-light);color:var(--primary)}
.sidebar-foot{padding:16px 16px 24px;border-top:1px solid var(--border)}
.sidebar-foot p{font-size:12px;color:var(--muted);text-align:center;margin-top:10px}

.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:64px;z-index:70;
  background:rgba(255,255,255,.94);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  align-items:center;justify-content:space-between;padding:0 16px;
}
.topbar-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;letter-spacing:-.02em}
.topbar-brand .brand-mark{width:34px;height:34px;flex:0 0 34px;font-size:16px;border-radius:10px}
.hamburger{width:44px;height:44px;border-radius:10px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.hamburger span{width:20px;height:2px;border-radius:2px;background:var(--text);transition:transform .2s var(--ease),opacity .2s var(--ease)}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.drawer{
  position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;z-index:90;
  background:#fff;box-shadow:var(--shadow-3);
  transform:translateX(100%);transition:transform .28s var(--ease);
  display:flex;flex-direction:column;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;gap:12px;padding:20px;border-bottom:1px solid var(--border)}
.drawer-body{flex:1;overflow-y:auto;padding:16px 12px}
.drawer-foot{padding:16px;border-top:1px solid var(--border)}
.drawer-mask{
  position:fixed;inset:0;z-index:80;background:rgba(15,44,74,.42);
  opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility .28s var(--ease);
}
.drawer-mask.open{opacity:1;visibility:visible}

.main-content{margin-left:248px;min-height:100vh;display:flex;flex-direction:column}
main{flex:1}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 48px}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-btn);
  border:1px solid transparent;font-size:16px;font-weight:500;
  white-space:nowrap;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:#17528F;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--shadow-1)}
.btn-ghost{background:#fff;border-color:var(--border-strong);color:var(--primary)}
.btn-ghost:hover{border-color:var(--primary);background:var(--primary-light);transform:translateY(-2px);box-shadow:var(--shadow-1)}
.btn-ghost:active{transform:translateY(1px)}
.btn-light{background:#fff;color:var(--primary-dark)}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 16px 32px -16px rgba(0,0,0,.5)}
.btn-block{width:100%}
.btn-sm{height:40px;padding:0 18px;font-size:15px}
.btn[disabled]{opacity:.55;box-shadow:none;pointer-events:none}

.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;background:var(--primary-light);color:var(--primary);
  font-size:13px;font-weight:500;letter-spacing:.01em;
}
.tag-accent{background:rgba(232,102,60,.12);color:#C24E28}

.section{padding:96px 0}
.section-white{background:#fff}
.section-head{max-width:760px;margin-bottom:48px}
.section-head h2{font-size:clamp(24px,3vw,34px)}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px}
.section-head .tag{margin-bottom:16px}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:72px 0 56px;
  border-bottom:1px solid var(--border);
  background-image:linear-gradient(180deg,rgba(255,255,255,.95),rgba(246,248,251,.98)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.hero::after{
  content:"";position:absolute;right:-160px;top:-120px;width:520px;height:520px;
  border:2px solid var(--primary);border-radius:50%;opacity:.05;pointer-events:none;
}
.hero::before{
  content:"";position:absolute;left:-100px;bottom:-180px;width:420px;height:420px;
  border:2px solid var(--accent);border-radius:50%;opacity:.05;pointer-events:none;
}
.breadcrumb{position:relative;z-index:1;font-size:13px;color:var(--muted);margin-bottom:22px}
.breadcrumb a{color:var(--muted);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{margin:0 8px;color:var(--disabled)}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:56px;align-items:center}
.hero-title{font-size:clamp(30px,3.8vw,44px);margin-top:16px}
.hero-sub{margin-top:18px;font-size:17px;color:var(--muted);max-width:62ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-img);box-shadow:var(--shadow-2);background:var(--primary-light)}
.hero-media figcaption{margin-top:12px;font-size:13px;color:var(--muted)}
.stat-bar{
  position:relative;z-index:1;
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  margin-top:44px;padding-top:28px;border-top:1px solid var(--border);
}
.stat-num{font-size:26px;font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:-.02em;line-height:1.2}
.stat-label{font-size:13px;color:var(--muted);margin-top:4px}

/* ---------- 流程时间轴 ---------- */
.flow-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:48px;align-items:start}
.timeline{position:relative}
.timeline::before{content:"";position:absolute;left:23px;top:14px;bottom:14px;width:2px;background:var(--border)}
.step{position:relative;display:flex;gap:24px;padding-bottom:36px}
.step:last-child{padding-bottom:0}
.step-num{
  position:relative;z-index:1;flex:0 0 48px;width:48px;height:48px;border-radius:50%;
  background:#fff;border:2px solid var(--primary);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;font-variant-numeric:tabular-nums;
  box-shadow:var(--shadow-1);transition:background .2s var(--ease),color .2s var(--ease);
}
.step:hover .step-num{background:var(--primary);color:#fff}
.step-body{padding-top:6px}
.step-body h3{font-size:19px;margin-bottom:8px}
.step-body p{font-size:15.5px;color:var(--muted);line-height:1.8;max-width:62ch}
.step-meta{display:inline-flex;align-items:center;gap:8px;margin-top:12px;font-size:13px;color:var(--primary);background:var(--primary-light);border-radius:999px;padding:4px 12px}

.point-card{background:var(--primary-light);border-radius:var(--radius-card);padding:28px 24px}
.point-card h3{font-size:17px;margin-bottom:8px}
.point-card .point-sub{font-size:13px;color:var(--muted);margin-bottom:18px}
.point-card ul li{position:relative;padding-left:18px;font-size:14.5px;line-height:1.75;color:#3C4E63;margin-bottom:14px}
.point-card ul li:last-child{margin-bottom:0}
.point-card ul li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--primary)}
.point-card .num{font-variant-numeric:tabular-nums;font-weight:700;color:var(--primary-dark)}
.sticky-box{position:sticky;top:32px}

/* ---------- 验证方式卡片 ---------- */
.card-grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.vcard{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.vcard:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--border-strong)}
.vcard .icon{
  width:44px;height:44px;border-radius:12px;background:var(--primary-light);color:var(--primary);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.vcard .icon svg{width:22px;height:22px}
.vcard h3{font-size:19px;margin-bottom:10px}
.vcard p{font-size:15px;color:var(--muted);line-height:1.75}
.vcard .vnote{margin-top:16px;padding-top:14px;border-top:1px dashed var(--border);font-size:13px;color:var(--disabled)}

/* ---------- 自查清单 ---------- */
.check-layout{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:48px;align-items:center}
.check-layout figure{margin:0}
.check-layout img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-img);box-shadow:var(--shadow-2);background:var(--primary-light)}
.check-list li{display:flex;gap:14px;padding:18px 0;border-bottom:1px dashed var(--border)}
.check-list li:first-child{padding-top:0}
.check-list li:last-child{border-bottom:0;padding-bottom:0}
.check-mark{
  flex:0 0 24px;width:24px;height:24px;margin-top:4px;border-radius:50%;
  background:var(--primary-light);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
}
.check-mark svg{width:13px;height:13px}
.check-list b{display:block;font-size:16px;font-weight:600;line-height:1.5}
.check-list span{display:block;font-size:14.5px;color:var(--muted);margin-top:2px;line-height:1.7}

/* ---------- FAQ ---------- */
.faq{max-width:860px}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:14px;
  margin-bottom:14px;overflow:hidden;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item.open{border-color:#CFE0F3;box-shadow:var(--shadow-1)}
.faq-q{
  position:relative;width:100%;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:20px 24px;text-align:left;font-size:17px;font-weight:600;line-height:1.55;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  border-radius:0 3px 3px 0;background:var(--primary);opacity:0;
  transition:opacity .2s var(--ease);
}
.faq-item.open .faq-q::before{opacity:1}
.faq-icon{position:relative;flex:0 0 22px;width:22px;height:22px}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.faq-icon::before{left:0;right:0;top:10px;height:2px}
.faq-icon::after{top:0;bottom:0;left:10px;width:2px}
.faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
.faq-a-inner{padding:0 24px 22px;font-size:15.5px;line-height:1.8;color:var(--muted);max-width:70ch}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--primary-dark);color:#fff;border-radius:20px;
  padding:56px;display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;bottom:-140px;width:360px;height:360px;
  border:2px solid #fff;border-radius:50%;opacity:.06;pointer-events:none;
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);color:#fff;position:relative;z-index:1}
.cta-band p{position:relative;z-index:1;margin-top:12px;font-size:15.5px;line-height:1.8;color:rgba(255,255,255,.78);max-width:56ch}
.cta-band .btn{position:relative;z-index:1}

/* ---------- 页脚 ---------- */
.footer{background:var(--primary-deep);color:rgba(255,255,255,.72);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;color:#fff;font-size:18px;font-weight:800;letter-spacing:-.02em}
.footer-brand .brand-mark{width:34px;height:34px;flex:0 0 34px;border-radius:10px;background:rgba(255,255,255,.14);font-size:16px}
.footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;letter-spacing:0}
.footer p{font-size:14px;line-height:1.85}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s var(--ease)}
.footer-links a:hover{color:#fff}
.footer-bottom{
  margin-top:48px;padding:22px 0 28px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:32px;bottom:32px;z-index:60;
  display:inline-flex;align-items:center;justify-content:center;
  height:52px;padding:0 26px;border-radius:999px;
  background:var(--primary);color:#fff;font-size:15px;font-weight:600;
  box-shadow:var(--shadow-3);
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .3s var(--ease),transform .3s var(--ease),background .2s var(--ease);
}
.float-cta.show{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta:hover{background:#17528F}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .sidebar{width:220px}
  .main-content{margin-left:220px}
  .container{padding:0 32px}
  .flow-layout{grid-template-columns:minmax(0,1fr) 300px;gap:32px}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .topbar{display:flex}
  .main-content{margin-left:0;padding-top:64px}
  .hero{padding:48px 0}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{order:-1}
  .section{padding:72px 0}
  .flow-layout{grid-template-columns:1fr;gap:32px}
  .sticky-box{position:static}
  .check-layout{grid-template-columns:1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .main-content{padding-bottom:56px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .stat-bar{grid-template-columns:repeat(2,1fr);gap:24px 16px}
  .card-grid-2{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer{padding-top:56px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .cta-band{border-radius:16px;padding:32px 24px;gap:24px}
  .vcard{padding:24px 20px}
  .faq-q{padding:18px 20px;font-size:16px}
  .faq-a-inner{padding:0 20px 20px}
  .step{gap:16px;padding-bottom:28px}
  .step-num{flex:0 0 42px;width:42px;height:42px;font-size:14px}
  .timeline::before{left:20px}
  .float-cta{
    left:0;right:0;bottom:0;
    height:auto;min-height:56px;border-radius:0;padding:16px 20px calc(16px + env(safe-area-inset-bottom));
    opacity:1;transform:none;pointer-events:auto;
  }
}
@media (max-width:560px){
  body{font-size:15px}
  .hero-actions{flex-direction:column;gap:10px}
  .hero-actions .btn,
  .cta-band .btn,
  .sidebar-foot .btn{width:100%}
  .hero-title{font-size:28px}
  .stat-num{font-size:22px}
  .brand-text b{font-size:17px}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .btn:hover,.vcard:hover,.float-cta{transform:none !important}
  html{scroll-behavior:auto}
}