/* roulang page: index */
:root{
  --brand-600:#1D5BD6;
  --brand-700:#1544A8;
  --brand-800:#103580;
  --brand-100:#DCE7FC;
  --brand-50:#EEF3FE;
  --accent-500:#0FA97F;
  --warm-500:#FF8A3D;
  --bg-page:#F5F7FB;
  --bg-alt:#EEF2F9;
  --text-1:#101828;
  --text-2:#475467;
  --text-3:#98A2B3;
  --border:#E4E8F0;
  --border-soft:#EEF1F6;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(16,24,40,.04), 0 10px 24px -12px rgba(20,60,140,.14);
  --shadow-card-hover:0 16px 32px -12px rgba(20,60,140,.22);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'PingFang SC','Microsoft YaHei','Hiragino Sans GB','Source Han Sans SC',system-ui,-apple-system,sans-serif;
  background:var(--bg-page);
  color:var(--text-1);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
a:hover{color:var(--brand-600);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}

.shell{width:100%;max-width:1200px;margin:0 auto;padding-left:16px;padding-right:16px;}
@media (min-width:768px){ .shell{padding-left:24px;padding-right:24px;} }
@media (min-width:1024px){ .shell{padding-left:32px;padding-right:32px;} }

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:50;background:#fff;
  border-bottom:1px solid var(--border);
  box-shadow:0 1px 2px rgba(16,24,40,.04);
  transition:box-shadow .24s ease-out;
}
.site-header.is-scrolled{box-shadow:0 6px 18px -10px rgba(16,24,40,.22);}
.brand-mark{
  width:38px;height:38px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(150deg,var(--brand-600),var(--brand-800));
  display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;
}
.brand-mark::before{
  content:'';position:absolute;width:22px;height:22px;border-radius:50%;
  border:2px solid rgba(255,255,255,.55);right:-6px;bottom:-6px;
}
.brand-mark::after{
  content:'';position:absolute;width:0;height:0;
  border-left:7px solid #fff;border-top:5px solid transparent;border-bottom:5px solid transparent;
  left:12px;
}
.nav-link{
  position:relative;display:inline-flex;align-items:center;min-height:44px;
  padding:0 14px;font-size:15px;font-weight:500;color:var(--text-2);
  transition:color .2s ease-out;
}
.nav-link:hover{color:var(--brand-600);}
.nav-link.active{color:var(--brand-600);font-weight:600;}
.nav-link.active::after{
  content:'';position:absolute;left:14px;right:14px;bottom:-1px;height:2px;
  background:var(--brand-600);border-radius:2px;
}
.search-box{position:relative;}
.search-box input{
  height:40px;width:210px;padding:0 16px 0 38px;border:1px solid var(--border);
  border-radius:999px;background:var(--bg-page);font-size:14px;color:var(--text-1);
  transition:border-color .2s ease-out, box-shadow .2s ease-out, background .2s ease-out;
}
.search-box input::placeholder{color:var(--text-3);}
.search-box input:focus{
  outline:none;border-color:var(--brand-600);background:#fff;
  box-shadow:0 0 0 3px rgba(29,91,214,.15);
}
.search-box .search-icon{
  position:absolute;left:14px;top:50%;transform:translateY(-50%);
  width:14px;height:14px;border:2px solid var(--text-3);border-radius:50%;
  pointer-events:none;
}
.search-box .search-icon::after{
  content:'';position:absolute;width:6px;height:2px;background:var(--text-3);
  right:-5px;bottom:-2px;transform:rotate(45deg);border-radius:2px;
}
.menu-btn{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--border);background:#fff;
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  cursor:pointer;transition:border-color .2s ease-out;
}
.menu-btn:hover{border-color:var(--brand-600);}
.menu-btn span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,24,40,.45);z-index:55;
  opacity:0;visibility:hidden;transition:opacity .24s ease-out, visibility .24s ease-out;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:286px;max-width:86vw;background:#fff;z-index:60;
  transform:translateX(100%);transition:transform .24s ease-out;
  display:flex;flex-direction:column;
  box-shadow:-12px 0 32px -18px rgba(16,24,40,.35);
}
.drawer.open{transform:translateX(0);}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 18px;border-bottom:1px solid var(--border-soft);
}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--border);background:#fff;
  cursor:pointer;color:var(--text-2);font-size:18px;line-height:1;transition:border-color .2s;
}
.drawer-close:hover{border-color:var(--brand-600);color:var(--brand-600);}
.drawer-link{
  display:flex;align-items:center;min-height:48px;padding:12px 18px;
  font-size:16px;color:var(--text-1);border-left:3px solid transparent;
  transition:background .2s ease-out, color .2s ease-out;
}
.drawer-link.active{border-left-color:var(--brand-600);color:var(--brand-600);font-weight:600;background:var(--brand-50);}
.drawer-foot{margin-top:auto;padding:18px;border-top:1px solid var(--border-soft);}
body.lock{overflow:hidden;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .2s ease-out, color .2s ease-out, border-color .2s ease-out, box-shadow .2s ease-out, transform .12s ease-out;
}
.btn:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 8px 18px -10px rgba(29,91,214,.75);}
.btn-primary:hover{background:var(--brand-700);color:#fff;box-shadow:0 14px 26px -12px rgba(29,91,214,.7);}
.btn-primary:active{background:var(--brand-800);transform:translateY(1px);}
.btn-ghost{background:#fff;color:var(--brand-600);border-color:var(--brand-100);}
.btn-ghost:hover{background:var(--brand-50);border-color:var(--brand-600);color:var(--brand-700);}
.btn-ghost:active{background:var(--brand-100);transform:translateY(1px);}
.text-link{
  display:inline-flex;align-items:center;gap:6px;min-height:44px;
  font-size:14px;font-weight:600;color:var(--brand-600);
}
.text-link:hover{color:var(--brand-700);text-decoration:underline;}
.text-link .arrow{transition:transform .2s ease-out;}
.text-link:hover .arrow{transform:translateX(3px);}

/* 卡片 */
.card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:transform .22s ease-out, border-color .22s ease-out, box-shadow .22s ease-out;
}
.card:hover{transform:translateY(-4px);border-color:rgba(29,91,214,.35);box-shadow:var(--shadow-card-hover);}
.card-media{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px 12px 0 0;background:var(--brand-50);}
.pill{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:var(--brand-50);color:var(--brand-700);font-size:12px;font-weight:600;
}
.pill-accent{background:var(--accent-50);color:var(--accent-600);}
.num-badge{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;background:var(--brand-50);color:var(--brand-700);
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
}

.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}

.section-title{font-size:26px;line-height:1.3;letter-spacing:0;color:var(--text-1);}
@media (min-width:768px){ .section-title{font-size:28px;} }
@media (min-width:1024px){ .section-title{font-size:30px;} }
.section-sub{color:var(--text-2);font-size:15px;line-height:1.8;}

/* Hero */
.hero{position:relative;background:#fff;overflow:hidden;}
.hero-ring{
  position:absolute;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(29,91,214,.2);left:-160px;top:-140px;pointer-events:none;
}
.hero-title{
  font-size:clamp(34px,5.2vw,46px);
  line-height:1.25;font-weight:700;color:var(--text-1);
}
.hero-sub{margin-top:16px;font-size:17px;line-height:1.8;color:var(--text-2);max-width:32em;}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-700);
  background:var(--brand-50);border:1px solid var(--brand-100);
  border-radius:999px;height:30px;padding:0 14px;margin-bottom:18px;
}
.hero-figure{position:relative;}
.hero-figure::after{
  content:'';position:absolute;left:22px;right:-16px;bottom:-16px;height:60%;
  background:rgba(29,91,214,.08);border-radius:16px;z-index:-1;
}
.hero-figure img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:16px;
  border:1px solid var(--border);background:var(--brand-50);
}
.trust-item{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);}
.trust-item::before{
  content:'';width:6px;height:6px;border-radius:50%;background:var(--brand-600);flex:0 0 auto;
}

/* 数据条 */
.stat-band{background:var(--bg-alt);border-top:1px solid var(--border-soft);border-bottom:1px solid var(--border-soft);}
.stat-num{
  font-size:34px;line-height:1.1;font-weight:700;color:var(--brand-700);
  font-variant-numeric:tabular-nums;
}
@media (min-width:768px){ .stat-num{font-size:38px;} }
.stat-label{margin-top:8px;font-size:13px;color:var(--text-2);line-height:1.7;}

/* 时间轴 */
.step-line{
  position:absolute;top:22px;left:16%;right:16%;height:1px;
  background:rgba(29,91,214,.3);
}
.step-num{
  width:46px;height:46px;border-radius:50%;background:#fff;
  border:2px solid var(--brand-600);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;
  position:relative;z-index:1;
}

/* FAQ */
.faq-item{
  position:relative;background:#fff;border:1px solid var(--border);border-radius:12px;
  overflow:hidden;transition:border-color .2s ease-out, box-shadow .2s ease-out;
}
.faq-item:hover{border-color:rgba(29,91,214,.3);}
.faq-item[open]{border-color:rgba(29,91,214,.4);box-shadow:var(--shadow-card);}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:18px 54px 18px 20px;font-size:16px;font-weight:600;color:var(--text-1);
  display:flex;align-items:center;min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:'';position:absolute;left:0;top:12px;bottom:12px;width:3px;
  background:var(--brand-600);border-radius:0 3px 3px 0;opacity:0;transition:opacity .2s ease-out;
}
.faq-item[open] summary::before{opacity:1;}
.faq-item summary::after{
  content:'';position:absolute;right:24px;top:50%;width:8px;height:8px;
  border-right:2px solid var(--text-3);border-bottom:2px solid var(--text-3);
  transform:translateY(-70%) rotate(-45deg);
  transition:transform .24s ease-out, border-color .24s ease-out;
}
.faq-item[open] summary::after{
  transform:translateY(-30%) rotate(45deg);border-color:var(--brand-600);
}
.faq-answer{padding:0 22px 20px 22px;font-size:15px;line-height:1.8;color:var(--text-2);}

/* 表单 */
.field{
  width:100%;height:46px;padding:0 14px;border:1px solid var(--border);border-radius:10px;
  background:#fff;color:var(--text-1);font-size:15px;
  transition:border-color .2s ease-out, box-shadow .2s ease-out;
}
textarea.field{height:auto;padding:12px 14px;line-height:1.7;resize:vertical;}
.field:focus{outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(29,91,214,.15);}
.field::placeholder{color:var(--text-3);}
.form-label{display:block;font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:8px;}

/* 空态 */
.empty-state{
  min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:12px;background:#fff;border:1px solid var(--border);border-radius:16px;
  color:var(--text-2);font-size:15px;
}
.empty-icon{
  width:44px;height:44px;border-radius:12px;background:var(--brand-50);
  display:flex;align-items:center;justify-content:center;color:var(--brand-600);font-size:20px;
}

/* 页脚 */
.site-footer{background:#0F1B33;color:#C7D2E1;}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;}
.footer-link{display:block;min-height:34px;line-height:34px;font-size:14px;color:#C7D2E1;transition:color .2s ease-out, transform .2s ease-out;}
.footer-link:hover{color:#fff;transform:translateX(2px);}
.status-dot{
  display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--warm-500);
  box-shadow:0 0 0 3px rgba(255,138,61,.18);margin-right:8px;
}

/* roulang page: article */
:root{
  --brand-600:#1D5BD6;
  --brand-700:#1544A8;
  --brand-800:#103580;
  --brand-100:#DCE7FC;
  --brand-50:#EEF3FE;
  --accent:#0FA97F;
  --warm:#FF8A3D;
  --bg:#F5F7FB;
  --band:#EEF2F9;
  --ink:#101828;
  --ink-2:#475467;
  --ink-3:#98A2B3;
  --line:#E4E8F0;
  --line-soft:#EEF1F6;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(16,24,40,.04), 0 10px 24px -12px rgba(20,60,140,.14);
  --shadow-hover:0 16px 32px -12px rgba(20,60,140,.22);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:'PingFang SC','Microsoft YaHei','Hiragino Sans GB','Source Han Sans SC',system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  -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{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px}
.tnum{font-variant-numeric:tabular-nums}

/* 容器 */
.shell{width:100%;max-width:1200px;margin:0 auto;padding-left:16px;padding-right:16px}
@media (min-width:768px){.shell{padding-left:24px;padding-right:24px}}
@media (min-width:1024px){.shell{padding-left:32px;padding-right:32px}}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line-soft);
  box-shadow:0 1px 2px rgba(16,24,40,.04);
  transition:box-shadow .22s ease-out;
}
.site-header.is-scrolled{box-shadow:0 8px 22px -14px rgba(16,24,40,.32)}
.brand-mark{
  position:relative;display:inline-block;flex:none;width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,#2A6BE8 0%,#1544A8 100%);
  box-shadow:0 8px 16px -8px rgba(29,91,214,.7);
}
.brand-mark::before{
  content:"";position:absolute;left:8px;top:9px;width:18px;height:16px;
  border:2px solid rgba(255,255,255,.92);border-radius:9px 9px 2px 2px;
  clip-path:polygon(0 0,100% 0,100% 55%,50% 100%,0 55%);
}
.brand-mark::after{
  content:"";position:absolute;left:14px;top:14px;width:6px;height:6px;border-radius:50%;background:#FF8A3D;
}
.nav-link{
  position:relative;display:flex;align-items:center;height:100%;padding:0 14px;
  font-size:15px;font-weight:500;color:var(--ink-2);
  transition:color .2s ease-out;
}
.nav-link:hover{color:var(--brand-600)}
.nav-link.active{color:var(--brand-600);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;border-radius:2px;background:var(--brand-600);
}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 12px;
  border:1px solid var(--line);border-radius:var(--radius-btn);background:#F7F9FC;
  transition:border-color .2s ease-out, box-shadow .2s ease-out, background .2s ease-out;
}
.search-box:focus-within{
  background:#fff;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(29,91,214,.15);
}
.search-box input{
  border:0;background:transparent;outline:none;width:158px;font-size:14px;color:var(--ink);
}
.search-box input::placeholder{color:var(--ink-3)}
.search-icon{
  flex:none;width:15px;height:15px;border:2px solid var(--ink-3);border-radius:50%;position:relative;
}
.search-icon::after{
  content:"";position:absolute;right:-4px;bottom:-4px;width:7px;height:2px;background:var(--ink-3);
  border-radius:2px;transform:rotate(45deg);
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 18px;border-radius:var(--radius-btn);
  font-size:14px;font-weight:600;white-space:nowrap;
  transition:background-color .2s ease-out, color .2s ease-out, border-color .2s ease-out, box-shadow .2s ease-out, transform .12s ease-out;
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 10px 20px -12px rgba(29,91,214,.85)}
.btn-primary:hover{background:var(--brand-700);box-shadow:0 14px 26px -12px rgba(29,91,214,.9)}
.btn-primary:active{background:var(--brand-800);transform:translateY(1px)}
.btn-ghost{background:#fff;color:var(--brand-600);border:1px solid var(--brand-100)}
.btn-ghost:hover{border-color:var(--brand-600);background:var(--brand-50)}
.btn-ghost:active{transform:translateY(1px)}
.btn-lg{height:46px;padding:0 24px;font-size:15px}
.menu-btn{
  width:44px;height:44px;display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  border:1px solid var(--line);border-radius:var(--radius-btn);background:#fff;transition:background-color .2s ease-out;
}
.menu-btn:hover{background:var(--brand-50)}
.menu-btn span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s ease-out}

/* 移动抽屉 */
#drawerMask{
  position:fixed;inset:0;z-index:70;background:rgba(16,24,40,.45);
  opacity:0;visibility:hidden;transition:opacity .24s ease-out, visibility .24s ease-out;
}
#drawerMask.is-open{opacity:1;visibility:visible}
#mobileDrawer{
  position:fixed;top:0;right:0;bottom:0;z-index:80;width:280px;max-width:86vw;
  display:flex;flex-direction:column;background:#fff;
  transform:translateX(100%);transition:transform .24s ease-out;
  box-shadow:-14px 0 34px -20px rgba(16,24,40,.45);
}
#mobileDrawer.is-open{transform:translateX(0)}
.drawer-link{
  display:flex;align-items:center;height:48px;padding:0 20px;font-size:15px;color:var(--ink-2);
  border-left:3px solid transparent;transition:background-color .2s ease-out, color .2s ease-out, border-color .2s ease-out;
}
.drawer-link:hover{background:#F7F9FC}
.drawer-link.active{color:var(--brand-600);font-weight:600;background:var(--brand-50);border-left-color:var(--brand-600)}

/* 面包屑 */
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-3)}
.breadcrumb li{display:flex;align-items:center;gap:8px;min-width:0}
.breadcrumb li + li::before{content:"/";color:#C7D2E1}
.breadcrumb a{color:var(--ink-2);transition:color .2s ease-out}
.breadcrumb a:hover{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
.breadcrumb .current{color:var(--ink);font-weight:600;max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* 标签胶囊 */
.pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-50);color:var(--brand-600);font-size:12.5px;font-weight:600;letter-spacing:.2px;
}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  border:1px solid var(--line);background:#fff;color:var(--ink-2);font-size:13.5px;
  transition:border-color .2s ease-out, color .2s ease-out, background-color .2s ease-out;
}
.tag:hover{border-color:var(--brand-600);color:var(--brand-600);background:var(--brand-50)}

/* 卡片 */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:transform .22s ease-out, box-shadow .22s ease-out, border-color .22s ease-out;
}
.card:hover{transform:translateY(-4px);border-color:rgba(29,91,214,.35);box-shadow:var(--shadow-hover)}

/* 文章正文排版 */
.article-body{max-width:760px;font-size:16.5px;line-height:1.9;color:#3B4759}
.article-body p{margin:0 0 1em}
.article-body h2{
  margin:1.9em 0 .7em;padding-left:14px;border-left:4px solid var(--brand-600);
  font-size:23px;line-height:1.35;font-weight:700;color:var(--ink);
}
.article-body h3{margin:1.6em 0 .6em;font-size:18.5px;line-height:1.45;font-weight:600;color:var(--ink)}
.article-body h4{margin:1.4em 0 .5em;font-size:16.5px;font-weight:600;color:var(--ink)}
.article-body ul,.article-body ol{margin:0 0 1.1em;padding-left:1.35em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.4em 0}
.article-body ul li::marker{color:var(--brand-600)}
.article-body ol li::marker{color:var(--brand-600);font-weight:600}
.article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-700)}
.article-body blockquote{
  margin:1.5em 0;padding:14px 18px;border-left:4px solid var(--brand-600);
  background:var(--brand-50);border-radius:0 12px 12px 0;color:#33405A;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius-img);margin:1.5em auto .6em;height:auto}
.article-body figure{margin:1.5em 0}
.article-body figcaption{margin-top:8px;font-size:12px;color:var(--ink-3);text-align:center}
.article-body strong{color:var(--ink);font-weight:600}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.article-body table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;font-size:15px;margin:1.4em 0}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;white-space:nowrap}
.article-body th{background:var(--brand-50);color:var(--ink);font-weight:600}
.article-body code{
  background:#F1F4F9;border-radius:6px;padding:2px 6px;font-size:14.5px;color:#33405A;
}

/* 空态 */
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  min-height:180px;padding:32px 20px;text-align:center;
  background:#F7F9FC;border:1px dashed var(--line);border-radius:var(--radius-card);
}
.empty-icon{
  width:44px;height:44px;border-radius:12px;border:2px solid var(--brand-100);position:relative;margin-bottom:14px;
}
.empty-icon::after{
  content:"";position:absolute;left:50%;top:50%;width:14px;height:2px;background:var(--brand-600);
  transform:translate(-50%,-50%);border-radius:2px;
}

/* 侧栏 */
.side-link{
  display:flex;align-items:center;gap:12px;min-height:44px;padding:10px 12px;border-radius:var(--radius-btn);
  font-size:14.5px;color:var(--ink-2);
  transition:background-color .2s ease-out, color .2s ease-out;
}
.side-link:hover{background:var(--brand-50);color:var(--brand-600)}
.side-idx{
  flex:none;width:24px;height:24px;border-radius:7px;background:var(--brand-50);color:var(--brand-600);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums;
}
.side-link:hover .side-idx{background:var(--brand-100)}
.side-arrow{margin-left:auto;color:var(--ink-3);transition:transform .2s ease-out, color .2s ease-out}
.side-link:hover .side-arrow{transform:translateX(2px);color:var(--brand-600)}

/* 目录 */
.toc-list a{
  display:block;padding:8px 12px;border-left:2px solid var(--line-soft);
  font-size:14px;color:var(--ink-2);line-height:1.5;
  transition:color .2s ease-out, border-color .2s ease-out, background-color .2s ease-out;
}
.toc-list a:hover{color:var(--brand-600);border-left-color:var(--brand-600);background:var(--brand-50)}

/* 深色信息面板 */
.dark-panel{background:#0F1B33;border-radius:var(--radius-card);color:#C7D2E1}
.dark-item{display:flex;gap:10px;font-size:14px;line-height:1.7;color:#C7D2E1}
.dot-live{
  flex:none;width:8px;height:8px;border-radius:50%;background:var(--warm);margin-top:8px;
  box-shadow:0 0 0 3px rgba(255,138,61,.18);
}

/* CTA 条 */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;background:#0F1B33;color:#fff;
  padding:40px 24px;
}
@media (min-width:768px){.cta-band{padding:52px 44px}}
@media (min-width:1024px){.cta-band{padding:60px 56px}}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-70px;width:320px;height:320px;border-radius:50%;
  border:1px solid rgba(29,91,214,.45);pointer-events:none;
}
.cta-band::before{
  content:"";position:absolute;left:-120px;bottom:-140px;width:300px;height:300px;border-radius:50%;
  border:1px solid rgba(255,255,255,.08);pointer-events:none;
}

/* 页脚 */
.site-footer{background:#0F1B33;color:#C7D2E1}
.footer-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px}
.footer-link{display:block;font-size:14px;color:#C7D2E1;padding:6px 0;transition:color .2s ease-out}
.footer-link:hover{color:#fff}
.status-dot{
  display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--warm);
  margin-right:8px;box-shadow:0 0 0 3px rgba(255,138,61,.18);
}

/* 相关推荐卡 */
.rec-card{display:flex;flex-direction:column;overflow:hidden}
.rec-cover{aspect-ratio:16/10;width:100%;object-fit:cover;border-radius:var(--radius-card) var(--radius-card) 0 0}

/* roulang page: category1 */
:root{
    --brand-600:#1D5BD6;
    --brand-700:#1544A8;
    --brand-800:#103580;
    --brand-100:#DCE7FC;
    --brand-50:#EEF3FE;
    --accent:#0FA97F;
    --warm:#FF8A3D;
    --bg-page:#F5F7FB;
    --bg-alt:#EEF2F9;
    --surface:#FFFFFF;
    --text-1:#101828;
    --text-2:#475467;
    --text-3:#98A2B3;
    --line:#E4E8F0;
    --line-soft:#EEF1F6;
    --navy:#0F1B33;
    --radius-card:16px;
    --radius-img:12px;
    --radius-ctl:10px;
    --shadow-card:0 1px 2px rgba(16,24,40,.04), 0 10px 24px -12px rgba(20,60,140,.14);
    --shadow-hover:0 16px 32px -12px rgba(20,60,140,.22);
    --t:.22s cubic-bezier(.22,.61,.36,1);
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    background:var(--bg-page);
    color:var(--text-1);
    font-family:'PingFang SC','Microsoft YaHei','Hiragino Sans GB','Source Han Sans SC',system-ui,sans-serif;
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%;height:auto}
  a{color:inherit;text-decoration:none;transition:color var(--t)}
  a:hover{color:var(--brand-600)}
  button{font-family:inherit;cursor:pointer}
  h1,h2,h3,h4,p,ul,ol{margin:0}
  ul,ol{padding:0;list-style:none}
  :focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:6px}

  /* ---------- 容器 ---------- */
  .shell{width:100%;max-width:1200px;margin:0 auto;padding-left:16px;padding-right:16px}
  @media (min-width:768px){.shell{padding-left:24px;padding-right:24px}}
  @media (min-width:1024px){.shell{padding-left:32px;padding-right:32px}}

  /* ---------- 头部导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:50;
    background:#fff;
    border-bottom:1px solid var(--line);
    box-shadow:0 1px 2px rgba(16,24,40,.04);
    transition:box-shadow var(--t);
  }
  .site-header.is-scrolled{box-shadow:0 4px 14px -6px rgba(16,24,40,.14)}

  .brand-mark{
    position:relative;display:inline-block;width:34px;height:34px;flex:none;
    border-radius:10px;background:var(--brand-600);
    box-shadow:0 6px 14px -8px rgba(29,91,214,.9);
  }
  .brand-mark::before{
    content:"";position:absolute;left:11px;top:16px;width:15px;height:2px;
    background:#fff;border-radius:2px;
  }
  .brand-mark::after{
    content:"";position:absolute;left:18px;top:12px;width:8px;height:8px;
    border-top:2px solid #fff;border-right:2px solid #fff;
    transform:rotate(45deg);border-radius:1px;
  }

  .nav-link{
    position:relative;display:inline-flex;align-items:center;height:100%;
    padding:0 14px;font-size:15px;font-weight:500;color:var(--text-2);
    transition:color var(--t);
  }
  .nav-link::after{
    content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
    background:var(--brand-600);border-radius:2px 2px 0 0;
    transform:scaleX(0);transform-origin:left;transition:transform var(--t);
  }
  .nav-link:hover{color:var(--brand-600)}
  .nav-link:hover::after{transform:scaleX(1)}
  .nav-link.active{color:var(--brand-600);font-weight:600}
  .nav-link.active::after{transform:scaleX(1)}

  .search-box{position:relative;display:flex;align-items:center;width:228px}
  .search-box input{
    width:100%;height:40px;padding:0 16px 0 38px;
    background:#F5F7FB;border:1px solid var(--line);border-radius:999px;
    font-size:14px;color:var(--text-1);outline:none;
    transition:border-color var(--t),box-shadow var(--t),background var(--t);
  }
  .search-box input::placeholder{color:var(--text-3)}
  .search-box input:focus{
    background:#fff;border-color:var(--brand-600);
    box-shadow:0 0 0 3px rgba(29,91,214,.15);
  }
  .search-icon{
    position:absolute;left:14px;top:50%;width:13px;height:13px;
    transform:translateY(-50%);border:1.6px solid var(--text-3);border-radius:50%;
    pointer-events:none;
  }
  .search-icon::after{
    content:"";position:absolute;right:-4px;bottom:-2px;width:6px;height:1.6px;
    background:var(--text-3);border-radius:2px;transform:rotate(45deg);
  }

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 20px;border-radius:var(--radius-ctl);
    font-size:15px;font-weight:600;border:1px solid transparent;
    transition:background var(--t),color var(--t),border-color var(--t),box-shadow var(--t),transform var(--t);
    white-space:nowrap;
  }
  .btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 8px 18px -10px rgba(29,91,214,.75)}
  .btn-primary:hover{background:var(--brand-700);color:#fff;box-shadow:0 12px 24px -10px rgba(29,91,214,.7)}
  .btn-primary:active{background:var(--brand-800);transform:translateY(1px)}
  .btn-outline{background:#fff;color:var(--text-1);border-color:var(--line)}
  .btn-outline:hover{color:var(--brand-600);border-color:var(--brand-600);box-shadow:var(--shadow-card)}
  .btn-outline:active{transform:translateY(1px)}
  .btn-onnav{height:40px;padding:0 18px;font-size:14px}
  .btn-lg{height:50px;padding:0 26px;font-size:16px}
  .btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed}

  .menu-btn{
    display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
    width:44px;height:44px;border-radius:10px;background:#fff;border:1px solid var(--line);
    transition:border-color var(--t),background var(--t);
  }
  .menu-btn:hover{border-color:var(--brand-600)}
  .menu-btn span{display:block;width:20px;height:2px;background:var(--text-1);border-radius:2px;transition:transform var(--t),opacity var(--t)}
  .menu-btn.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .menu-btn.is-open span:nth-child(2){opacity:0}
  .menu-btn.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

  /* ---------- 移动端抽屉 ---------- */
  .drawer{position:fixed;inset:0;z-index:70;pointer-events:none}
  .drawer.open{pointer-events:auto}
  .drawer-mask{
    position:absolute;inset:0;background:rgba(16,24,40,.45);
    opacity:0;transition:opacity .24s ease;
  }
  .drawer.open .drawer-mask{opacity:1}
  .drawer-panel{
    position:absolute;top:0;right:0;height:100%;width:288px;max-width:86vw;
    background:#fff;display:flex;flex-direction:column;
    transform:translateX(100%);transition:transform .24s ease-out;
    box-shadow:-16px 0 40px -20px rgba(16,24,40,.4);
  }
  .drawer.open .drawer-panel{transform:translateX(0)}
  .drawer-head{
    display:flex;align-items:center;justify-content:space-between;
    height:56px;padding:0 18px;border-bottom:1px solid var(--line-soft);
  }
  .drawer-link{
    display:flex;align-items:center;min-height:48px;padding:0 18px;
    font-size:15.5px;color:var(--text-2);border-left:3px solid transparent;
    transition:background var(--t),color var(--t),border-color var(--t);
  }
  .drawer-link:hover{background:var(--brand-50);color:var(--brand-600)}
  .drawer-link.active{color:var(--brand-600);font-weight:600;border-left-color:var(--brand-600);background:var(--brand-50)}
  body.body-lock{overflow:hidden}

  /* ---------- 面包屑 ---------- */
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-3)}
  .breadcrumb a{color:var(--text-3)}
  .breadcrumb a:hover{color:var(--brand-600);text-decoration:underline}
  .breadcrumb .sep{color:#CBD5E1}
  .breadcrumb .current{color:var(--text-1);font-weight:600}

  /* ---------- 分类 Hero ---------- */
  .cat-hero{
    position:relative;overflow:hidden;
    background-image:url('/assets/images/backpic/back-1.webp');
    background-size:cover;background-position:center;background-repeat:no-repeat;
    border-bottom:1px solid var(--line);
  }
  .cat-hero::before{content:"";position:absolute;inset:0;background:rgba(255,255,255,.86)}
  .cat-hero > .inner{position:relative;z-index:1}
  .cat-hero .arc{
    position:absolute;right:-80px;bottom:-120px;width:340px;height:340px;
    border:1px solid rgba(29,91,214,.22);border-radius:50%;z-index:0;
  }
  .cat-hero .arc::after{
    content:"";position:absolute;inset:56px;border:1px solid rgba(29,91,214,.16);border-radius:50%;
  }

  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
    background:var(--brand-100);color:var(--brand-700);font-size:13px;font-weight:600;
  }
  .badge{
    display:inline-flex;align-items:center;gap:8px;padding:8px 14px;min-height:36px;
    border-radius:999px;background:#fff;border:1px solid var(--line);
    font-size:13.5px;color:var(--text-2);font-weight:500;
  }
  .badge .dot{width:6px;height:6px;border-radius:50%;background:var(--brand-600);flex:none}

  .h1-cat{font-size:clamp(28px,4vw,38px);line-height:1.3;font-weight:700;letter-spacing:0}
  .lead{font-size:16.5px;line-height:1.85;color:var(--text-2)}

  /* ---------- 板块通用 ---------- */
  .section{padding:64px 0}
  @media (min-width:768px){.section{padding:80px 0}}
  @media (min-width:1024px){.section{padding:104px 0}}
  .section-alt{background:var(--bg-alt)}
  .section-white{background:#fff}

  .sec-head{max-width:760px}
  .sec-title{font-size:clamp(23px,3vw,29px);line-height:1.35;font-weight:700}
  .sec-sub{margin-top:14px;font-size:15.5px;line-height:1.8;color:var(--text-2)}

  /* ---------- 图文卡片 ---------- */
  .card{
    display:flex;flex-direction:column;background:#fff;
    border:1px solid var(--line);border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);overflow:hidden;
    transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  }
  .card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(29,91,214,.35)}
  .card-media{position:relative;width:100%;aspect-ratio:16/10;background:var(--brand-50);overflow:hidden}
  .card-media img{width:100%;height:100%;object-fit:cover}
  .card-body{padding:20px 22px 22px}
  .card-title{font-size:18px;line-height:1.45;font-weight:600;color:var(--text-1)}
  .card-text{margin-top:10px;font-size:14.5px;line-height:1.75;color:var(--text-2)}
  .card-foot{margin-top:16px;display:flex;align-items:center;justify-content:space-between;gap:12px}
  .pill{
    display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;
    background:var(--brand-50);color:var(--brand-700);font-size:12.5px;font-weight:600;
  }
  .arrow-link{
    display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-600);
  }
  .arrow-link::after{
    content:"";width:7px;height:7px;border-top:2px solid currentColor;border-right:2px solid currentColor;
    transform:rotate(45deg);transition:transform var(--t);
  }
  .arrow-link:hover{color:var(--brand-700);text-decoration:underline}
  .arrow-link:hover::after{transform:rotate(45deg) translate(1px,-1px)}

  /* ---------- 核对清单 ---------- */
  .check-list{counter-reset:ck;display:grid;gap:0}
  @media (min-width:768px){.check-list{grid-template-columns:1fr 1fr;column-gap:40px}}
  .check-item{
    counter-increment:ck;display:flex;gap:16px;padding:20px 0;
    border-bottom:1px solid rgba(29,91,214,.14);
  }
  .check-num{
    flex:none;width:34px;height:34px;border-radius:10px;
    display:flex;align-items:center;justify-content:center;
    background:#fff;border:1px solid rgba(29,91,214,.28);
    color:var(--brand-700);font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
  }
  .check-num::before{content:counter(ck,decimal-leading-zero)}
  .check-title{font-size:16px;font-weight:600;color:var(--text-1)}
  .check-text{margin-top:6px;font-size:14.5px;line-height:1.75;color:var(--text-2)}

  /* ---------- FAQ ---------- */
  .faq-list{display:grid;gap:12px;max-width:900px}
  .faq-item{
    position:relative;background:#fff;border:1px solid var(--line);
    border-radius:12px;overflow:hidden;transition:border-color var(--t),box-shadow var(--t);
  }
  .faq-item:hover{border-color:rgba(29,91,214,.35);box-shadow:var(--shadow-card)}
  .faq-item::before{
    content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand-600);
    transform:scaleY(0);transform-origin:top;transition:transform .24s ease;
  }
  .faq-item.open::before{transform:scaleY(1)}
  .faq-q{
    width:100%;min-height:44px;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 22px;text-align:left;background:transparent;border:0;
    font-size:16.5px;font-weight:600;color:var(--text-1);line-height:1.5;
  }
  .faq-icon{
    flex:none;width:11px;height:11px;border-top:2px solid var(--text-3);border-right:2px solid var(--text-3);
    transform:rotate(45deg);transition:transform .24s ease,border-color var(--t);
  }
  .faq-item.open .faq-icon{transform:rotate(135deg);border-color:var(--brand-600)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
  .faq-a-inner{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text-2)}

  /* ---------- CTA 面板 ---------- */
  .cta-panel{
    position:relative;overflow:hidden;background:var(--navy);border-radius:18px;
    padding:44px 32px;
  }
  @media (min-width:1024px){.cta-panel{padding:56px 56px}}
  .cta-panel::after{
    content:"";position:absolute;right:-90px;top:-110px;width:320px;height:320px;
    border:1px solid rgba(255,255,255,.10);border-radius:50%;
  }
  .cta-panel .inner{position:relative;z-index:1}
  .cta-title{font-size:clamp(22px,2.8vw,28px);line-height:1.35;font-weight:700;color:#fff}
  .cta-text{margin-top:14px;font-size:15.5px;line-height:1.85;color:#C7D2E1}
  .cta-meta{margin-top:24px;display:flex;flex-wrap:wrap;gap:10px 26px;font-size:14px;color:#C7D2E1}
  .cta-meta strong{color:#fff;font-weight:600}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--navy);color:#C7D2E1}
  .footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
  .footer-link{display:block;font-size:14px;padding:6px 0;color:#C7D2E1;transition:color var(--t)}
  .footer-link:hover{color:#fff;text-decoration:underline}
  .status-dot{
    display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--warm);
    margin-right:8px;vertical-align:middle;position:relative;
  }
  .status-dot::after{
    content:"";position:absolute;inset:-4px;border-radius:50%;
    border:1px solid rgba(255,138,61,.55);animation:pulse 2.4s ease-out infinite;
  }
  @keyframes pulse{
    0%{transform:scale(.7);opacity:.9}
    70%{transform:scale(1.5);opacity:0}
    100%{transform:scale(1.5);opacity:0}
  }

  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important}
  }

/* roulang page: category2 */
:root{
  --brand-50:#EEF3FE;
  --brand-100:#DCE7FC;
  --brand-600:#1D5BD6;
  --brand-700:#1544A8;
  --brand-800:#103580;
  --accent:#0FA97F;
  --warm:#FF8A3D;
  --bg:#F5F7FB;
  --bg-alt:#EEF2F9;
  --surface:#FFFFFF;
  --dark:#0F1B33;
  --ink:#101828;
  --ink-2:#475467;
  --ink-3:#98A2B3;
  --border:#E4E8F0;
  --line:#EEF1F6;
  --radius-card:16px;
  --radius-img:12px;
  --radius-ctrl:10px;
  --shadow-card:0 1px 2px rgba(16,24,40,.04), 0 10px 24px -12px rgba(20,60,140,.14);
  --shadow-card-hover:0 16px 32px -12px rgba(20,60,140,.22);
  --shadow-header:0 1px 2px rgba(16,24,40,.04);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -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{cursor:pointer}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px}
::selection{background:var(--brand-100);color:var(--brand-800)}

.shell{width:100%;max-width:1200px;margin:0 auto;padding-left:16px;padding-right:16px}
@media (min-width:768px){.shell{padding-left:24px;padding-right:24px}}
@media (min-width:1024px){.shell{padding-left:32px;padding-right:32px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;background:#fff;
  border-bottom:1px solid var(--border);
  box-shadow:var(--shadow-header);
  transition:box-shadow .24s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px -16px rgba(20,60,140,.35)}
.brand-mark{
  position:relative;display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:11px;background:var(--brand-600);flex:0 0 auto;
  box-shadow:0 8px 18px -10px rgba(29,91,214,.85);
}
.brand-mark::before{
  content:"";width:16px;height:16px;border:2px solid rgba(255,255,255,.95);
  border-radius:50%;border-right-color:transparent;transform:rotate(-40deg);
}
.brand-mark::after{
  content:"";position:absolute;width:7px;height:2px;border-radius:2px;background:#fff;
  transform:rotate(-40deg) translateX(2px);
}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:100%;
  padding:0 14px;font-size:15px;font-weight:500;color:var(--ink-2);
  transition:color .2s ease;white-space:nowrap;
}
.nav-link:hover{color:var(--brand-600)}
.nav-link.active{color:var(--brand-600);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  border-radius:2px;background:var(--brand-600);
}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;width:230px;
  padding:0 14px;border:1px solid var(--border);border-radius:999px;
  background:#F9FAFC;transition:border-color .2s, box-shadow .2s, background .2s;
}
.search-box:focus-within{
  background:#fff;border-color:var(--brand-600);
  box-shadow:0 0 0 3px rgba(29,91,214,.12);
}
.search-box input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--ink);
}
.search-box input::placeholder{color:var(--ink-3)}
.search-icon{
  position:relative;width:14px;height:14px;flex:0 0 auto;border-radius:50%;
  border:1.6px solid var(--ink-3);
}
.search-icon::after{
  content:"";position:absolute;right:-4px;bottom:-3px;width:6px;height:1.6px;
  background:var(--ink-3);border-radius:2px;transform:rotate(45deg);
}
.menu-btn{
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;
  gap:5px;width:44px;height:44px;border:1px solid var(--border);
  border-radius:12px;background:#fff;transition:border-color .2s, box-shadow .2s;
}
.menu-btn span{width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .24s ease, opacity .2s ease}
.menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,24,40,.45);opacity:0;
  pointer-events:none;transition:opacity .24s ease;z-index:55;
}
.drawer-mask.open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(84vw,340px);background:#fff;
  transform:translateX(102%);transition:transform .24s ease-out;z-index:60;
  display:flex;flex-direction:column;overflow-y:auto;
  box-shadow:-16px 0 40px -24px rgba(16,24,40,.45);
}
.drawer.open{transform:translateX(0)}
.drawer-link{
  display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:10px;
  font-size:15.5px;font-weight:500;color:var(--ink-2);transition:background .2s, color .2s;
}
.drawer-link:hover{background:var(--brand-50);color:var(--brand-700)}
.drawer-link.active{background:var(--brand-50);color:var(--brand-700);font-weight:600;box-shadow:inset 3px 0 0 var(--brand-600)}
body.no-scroll{overflow:hidden}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border:1px solid transparent;border-radius:var(--radius-ctrl);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:background .2s ease-out, color .2s ease-out, box-shadow .2s ease-out, transform .12s ease-out, border-color .2s ease-out;
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 10px 20px -12px rgba(29,91,214,.8)}
.btn-primary:hover{background:var(--brand-700);box-shadow:0 14px 26px -12px rgba(29,91,214,.85)}
.btn-primary:active{background:var(--brand-800);transform:translateY(1px)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--border)}
.btn-ghost:hover{border-color:rgba(29,91,214,.45);color:var(--brand-700);box-shadow:var(--shadow-card)}
.btn-ghost:active{transform:translateY(1px)}
.btn[disabled],.btn:disabled{opacity:.4;pointer-events:none}

/* ---------- breadcrumb ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;font-size:14px;color:var(--ink-3)}
.breadcrumb li{display:flex;align-items:center}
.breadcrumb li+li::before{content:"/";margin:0 8px;color:#C4CBD8}
.breadcrumb a{color:var(--ink-3);transition:color .2s}
.breadcrumb a:hover{color:var(--brand-600);text-decoration:underline}
.breadcrumb li[aria-current]{color:var(--ink);font-weight:600}

/* ---------- shared blocks ---------- */
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:6px 13px;border-radius:999px;
  background:var(--brand-50);border:1px solid var(--brand-100);
  color:var(--brand-700);font-size:13px;font-weight:500;white-space:nowrap;
}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--brand-600);flex:0 0 auto}
.panel-dark{
  background:var(--dark);border-radius:var(--radius-card);padding:18px 20px;color:#C7D2E1;
}
.panel-dark .row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 0}
.panel-dark .row+.row{border-top:1px solid rgba(255,255,255,.08)}
.panel-dark .label{font-size:13.5px;color:#98A2B3}
.panel-dark .value{font-size:14px;color:#fff;font-weight:600}
.pulse-dot{
  display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--warm);
  margin-right:7px;box-shadow:0 0 0 3px rgba(255,138,61,.22);
}
.section-title{font-size:26px;line-height:1.3;font-weight:700;letter-spacing:0}
@media (min-width:1024px){.section-title{font-size:30px}}
.h2-block{
  position:relative;padding-left:14px;font-size:22px;line-height:1.35;font-weight:700;
}
@media (min-width:1024px){.h2-block{font-size:24px}}
.h2-block::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;
  background:var(--brand-600);
}
.muted{color:var(--ink-2);font-size:15px}
.small{font-size:13.5px;color:var(--ink-3)}

/* ---------- anchor nav ---------- */
.anchor-heading{font-size:13px;font-weight:600;color:var(--ink-3);letter-spacing:.08em}
.anchor-list{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px}
.anchor-list::-webkit-scrollbar{height:4px}
.anchor-list::-webkit-scrollbar-thumb{background:#D5DCE8;border-radius:4px}
.anchor-link{
  display:flex;align-items:center;gap:10px;min-height:44px;padding:9px 13px;
  border-radius:10px;font-size:14.5px;color:var(--ink-2);white-space:nowrap;
  transition:background .2s, color .2s, box-shadow .2s;
}
.anchor-link .idx{
  font-variant-numeric:tabular-nums;font-size:12px;font-weight:700;color:var(--brand-600);
  background:var(--brand-50);border-radius:6px;padding:2px 6px;
}
.anchor-link:hover{background:var(--brand-50);color:var(--brand-700)}
.anchor-link.is-active{background:var(--brand-50);color:var(--brand-700);font-weight:600;box-shadow:inset 3px 0 0 var(--brand-600)}
.anchor-note{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:16px 18px;box-shadow:var(--shadow-card);
}
@media (min-width:1024px){.anchor-list{flex-direction:column;overflow:visible;gap:4px}}

/* ---------- entry rows ---------- */
.entry-row{
  display:flex;align-items:flex-start;gap:14px;padding:15px 16px;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-img);
  transition:background .2s ease-out, border-color .2s ease-out, box-shadow .2s ease-out, transform .2s ease-out;
}
.entry-row:hover{
  background:var(--brand-50);border-color:rgba(29,91,214,.35);
  box-shadow:var(--shadow-card);transform:translateY(-2px);
}
.entry-index{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;display:flex;
  align-items:center;justify-content:center;background:var(--brand-100);
  color:var(--brand-700);font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
}
.entry-title{font-size:16px;font-weight:600;color:var(--ink);line-height:1.5}
.entry-desc{font-size:14px;color:var(--ink-2);margin-top:3px;line-height:1.7}
.entry-arrow{
  margin-left:auto;align-self:center;flex:0 0 auto;color:var(--ink-3);
  font-size:18px;line-height:1;transition:transform .2s ease, color .2s ease;
}
.entry-row:hover .entry-arrow{transform:translateX(2px);color:var(--brand-600)}

/* ---------- compare ---------- */
.compare-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-card);
}
.compare-card .tag{font-size:12.5px;font-weight:600;color:var(--brand-700);background:var(--brand-50);border-radius:999px;padding:4px 10px;display:inline-block}
.compare-card ul{margin-top:14px;display:flex;flex-direction:column;gap:10px}
.compare-card li{position:relative;padding-left:16px;font-size:14.5px;color:var(--ink-2);line-height:1.7}
.compare-card li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--brand-600)}
.compare-card.accent li::before{background:var(--accent)}

/* ---------- faq ---------- */
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-img);
  overflow:hidden;transition:border-color .2s, box-shadow .2s;
}
.faq-item:hover{border-color:rgba(29,91,214,.3)}
.faq-item.open{box-shadow:var(--shadow-card)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:15px 18px;background:none;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);transition:box-shadow .24s ease;
}
.faq-item.open .faq-q{box-shadow:inset 3px 0 0 var(--brand-600)}
.faq-icon{
  position:relative;flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  border:1px solid var(--border);transition:transform .24s ease, border-color .2s, background .2s;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;top:50%;left:50%;background:var(--brand-600);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:1.6px}
.faq-icon::after{width:1.6px;height:10px}
.faq-item.open .faq-icon{transform:rotate(90deg);border-color:var(--brand-600);background:var(--brand-50)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out}
.faq-a-inner{padding:0 18px 18px 21px;font-size:15px;line-height:1.8;color:var(--ink-2)}

/* ---------- cta ---------- */
.cta-band{
  background:var(--brand-50);border:1px solid var(--brand-100);
  border-radius:var(--radius-card);padding:26px;
}
@media (min-width:1024px){.cta-band{padding:34px 36px}}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#C7D2E1}
.site-footer p{color:#C7D2E1}
.footer-title{color:#fff;font-size:14px;font-weight:600;margin-bottom:12px;letter-spacing:.02em}
.footer-link{display:block;font-size:14px;color:#C7D2E1;padding:6px 0;transition:color .2s, transform .2s}
.footer-link:hover{color:#fff;transform:translateX(2px)}
.status-dot{
  display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--warm);
  margin-right:7px;box-shadow:0 0 0 3px rgba(255,138,61,.2);
}

/* ---------- scroll offset ---------- */
section[id]{scroll-margin-top:96px}
[data-anchor-block]{scroll-margin-top:96px}