/* roulang page: index */
:root{
  --primary:#0E6BA8;
  --primary-dark:#0A4E7D;
  --primary-soft:#E8F2FA;
  --accent:#F2762A;
  --accent-soft:#FFF1E6;
  --ink:#16222C;
  --ink-2:#4A5C6B;
  --ink-3:#8595A3;
  --line:#E4EBF2;
  --bg:#F5F8FB;
  --surface:#FFFFFF;
  --success:#1E9E6A;
  --warning:#D9483B;
  --radius-btn:10px;
  --radius-card:16px;
  --shadow-sm:0 1px 2px rgba(16,34,48,.05);
  --shadow-md:0 6px 20px rgba(16,34,48,.08);
  --shadow-lg:0 18px 40px rgba(16,34,48,.10);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{color:var(--ink);margin:0;letter-spacing:0;line-height:1.35;}
p{margin:0;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
button,input{font-family:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container-x{padding:0 24px;}}
@media (min-width:1024px){.container-x{padding:0 32px;}}
.section-head{display:flex;align-items:center;gap:12px;}
.section-head::before{content:"";width:4px;height:20px;border-radius:2px;background:var(--primary);display:block;}
.wave-line{
  height:14px;width:160px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='14' viewBox='0 0 160 14'%3E%3Cpath d='M0 7c10-6 20-6 30 0s20 6 30 0 20-6 30 0 20 6 30 0 20-6 30 0' fill='none' stroke='%230E6BA8' stroke-opacity='0.18' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
}
.card-hover{transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;}
.card-hover:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#CFE1F0;}
.line-truncate-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.line-truncate-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
details.faq-item > summary{list-style:none;cursor:pointer;}
details.faq-item > summary::-webkit-details-marker{display:none;}
details.faq-item .faq-plus{transition:transform .22s ease;}
details.faq-item[open] .faq-plus{transform:rotate(45deg);}
details.faq-item[open] .faq-bar{opacity:1;}
.faq-bar{position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;background:var(--primary);opacity:0;transition:opacity .22s ease;}
.no-scrollbar::-webkit-scrollbar{display:none;}
.no-scrollbar{-ms-overflow-style:none;scrollbar-width:none;}
.mobile-drawer{transform:translateX(100%);transition:transform .28s ease;}
.mobile-drawer.open{transform:translateX(0);}
.search-row{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.search-row.open{max-height:88px;}
.badge{border-radius:999px;font-size:12px;line-height:18px;font-weight:500;padding:3px 10px;display:inline-block;}
.badge-primary{background:var(--primary-soft);color:var(--primary);}
.badge-accent{background:var(--accent-soft);color:var(--accent);}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;border:1px solid transparent;transition:all .2s ease;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-sm);}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm);}
.btn-outline{border-color:var(--primary);color:var(--primary);background:#fff;}
.btn-outline:hover{background:var(--primary-soft);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:var(--shadow-sm);}
.btn-accent:hover{background:#DE6619;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.text-link{color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.text-link svg{transition:transform .2s ease;}
.text-link:hover svg{transform:translateX(3px);}
.avatar-initial{width:40px;height:40px;border-radius:999px;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:15px;}
@media (max-width:767px){
  h1{font-size:28px;line-height:36px;}
  .section-pad{padding-top:56px;padding-bottom:56px;}
}
@media (min-width:768px){
  .section-pad{padding-top:88px;padding-bottom:88px;}
}

/* roulang page: article */
:root{
  --primary:#0E6BA8;
  --primary-dark:#0A4E7D;
  --primary-soft:#E8F2FA;
  --accent:#F2762A;
  --accent-soft:#FFF1E6;
  --ink:#16222C;
  --ink-2:#4A5C6B;
  --ink-3:#8595A3;
  --line:#E4EBF2;
  --bg:#F5F8FB;
  --surface:#FFFFFF;
  --success:#1E9E6A;
  --warning:#D9483B;
  --radius-sm:10px;
  --radius-md:16px;
  --radius-lg:22px;
  --shadow-sm:0 1px 2px rgba(16,34,48,.05);
  --shadow-md:0 6px 20px rgba(16,34,48,.08);
  --shadow-lg:0 18px 40px rgba(16,34,48,.10);
  --header-h:56px;
}
@media (min-width:1024px){ :root{ --header-h:72px; } }

*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink-2);
  background:var(--bg);
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{ margin:0; color:var(--ink); font-weight:600; letter-spacing:0; }
p{ margin:0; }
a{ color:inherit; text-decoration:none; }
img{ max-width:100%; display:block; }
button,input{ font:inherit; color:inherit; }
ul,ol{ margin:0; padding:0; list-style:none; }
:focus-visible{ outline:2px solid var(--primary); outline-offset:2px; border-radius:4px; }

.container-x{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:768px){ .container-x{ padding-left:24px; padding-right:24px; } }
@media (min-width:1024px){ .container-x{ padding-left:32px; padding-right:32px; } }

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:var(--primary-soft);
  color:var(--primary-dark);
  font-size:13px;
  line-height:32px;
}
.topbar-inner{ display:flex; align-items:center; justify-content:space-between; gap:16px; }
.topbar-dot{ display:inline-block; width:6px; height:6px; border-radius:50%; background:var(--accent); margin-right:8px; vertical-align:middle; }

/* ---------- 站点头部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(150%) blur(6px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  height:var(--header-h);
  display:flex;
  align-items:center;
  gap:16px;
}
@media (min-width:1024px){ .header-inner{ gap:28px; } }
.brand-mark{
  width:36px;height:36px;border-radius:10px;background:var(--primary);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease, background .2s ease;
}
.brand:hover .brand-mark{ transform:translateY(-1px); background:var(--primary-dark); }
.brand-text{ font-size:17px; font-weight:600; color:var(--ink); white-space:nowrap; }
@media (min-width:1024px){ .brand-text{ font-size:18px; } }

.search-form{ position:relative; flex:1 1 auto; max-width:520px; }
.search-input{
  width:100%;
  height:46px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  padding:0 110px 0 44px;
  font-size:15px;
  color:var(--ink);
  transition:border-color .18s ease, box-shadow .18s ease;
}
.search-input::placeholder{ color:var(--ink-3); }
.search-input:focus{ outline:none; border-color:var(--primary); box-shadow:0 0 0 4px rgba(14,107,168,.14); }
.search-icon{ position:absolute; left:16px; top:50%; transform:translateY(-50%); color:var(--ink-3); pointer-events:none; }
.search-submit{
  position:absolute; right:6px; top:5px;
  height:36px; padding:0 18px;
  border-radius:999px; border:1px solid transparent;
  background:var(--primary-soft); color:var(--primary);
  font-size:14px; font-weight:600; cursor:pointer;
  transition:background .18s ease, color .18s ease;
}
.search-form:focus-within .search-submit{ background:var(--primary); color:#fff; }
.search-submit:hover{ background:var(--primary-dark); color:#fff; }

.icon-btn{
  width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line); background:#fff; color:var(--ink-2);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.icon-btn:hover{ background:var(--primary-soft); color:var(--primary); border-color:var(--primary-soft); }

.header-nav a{ position:relative; }
.header-nav a.is-active{ color:var(--primary); font-weight:600; }
.header-nav a.is-active::after{
  content:""; position:absolute; left:0; right:0; bottom:-2px; height:2px; border-radius:2px; background:var(--primary);
}

.mobile-search-row{
  border-top:1px solid var(--line);
  padding:10px 0 12px;
}
.mobile-search-row .search-form{ max-width:none; }
.mobile-search-row .search-input{ height:44px; padding-right:96px; }

/* ---------- 抽屉菜单 ---------- */
.drawer-mask{
  position:fixed; inset:0; background:rgba(16,34,48,.42);
  opacity:0; pointer-events:none; transition:opacity .28s ease; z-index:55;
}
.drawer-mask.is-open{ opacity:1; pointer-events:auto; }
.drawer{
  position:fixed; top:0; right:0; bottom:0; width:84%; max-width:340px;
  background:#fff; box-shadow:var(--shadow-lg); z-index:60;
  transform:translateX(100%); transition:transform .28s ease;
  display:flex; flex-direction:column;
}
.drawer.is-open{ transform:translateX(0); }
.drawer-head{ display:flex; align-items:center; justify-content:space-between; padding:16px 20px; border-bottom:1px solid var(--line); }
.drawer-body{ padding:16px 20px 28px; overflow-y:auto; }
.drawer-link{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 4px; border-bottom:1px solid var(--line);
  font-size:15px; color:var(--ink-2);
}
.drawer-link:hover{ color:var(--primary); }
.drawer-link.is-active{ color:var(--primary); font-weight:600; }

/* ---------- 面包屑 ---------- */
.breadcrumb{ background:#fff; border-bottom:1px solid var(--line); }
.crumb-list{ display:flex; align-items:center; flex-wrap:wrap; gap:8px; font-size:14px; color:var(--ink-3); }
.crumb-list a{ color:var(--ink-2); transition:color .16s ease; }
.crumb-list a:hover{ color:var(--primary); }
.crumb-sep{ color:var(--line); }
.crumb-current{ color:var(--ink-3); max-width:320px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }

/* ---------- 页面结构 ---------- */
.page-wrap{ padding:28px 0 64px; }
@media (min-width:1024px){ .page-wrap{ padding:40px 0 88px; } }
.layout-grid{ display:grid; gap:28px; }
@media (min-width:1024px){ .layout-grid{ grid-template-columns:minmax(0,1fr) 304px; gap:40px; } }

.panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-sm);
}
.panel-pad{ padding:22px; }
@media (min-width:768px){ .panel-pad{ padding:30px; } }
@media (min-width:1024px){ .panel-pad{ padding:38px; } }

.badge{
  display:inline-flex; align-items:center; gap:6px;
  padding:4px 12px; border-radius:999px;
  font-size:12px; font-weight:500; line-height:18px;
  background:var(--accent-soft); color:var(--accent);
}
.badge-soft{ background:var(--primary-soft); color:var(--primary); }

.article-title{
  margin-top:16px;
  font-size:26px;
  line-height:1.42;
  font-weight:700;
  color:var(--ink);
}
@media (min-width:1024px){ .article-title{ font-size:36px; line-height:1.34; } }

.meta-row{
  margin-top:20px; padding-top:18px; border-top:1px dashed var(--line);
  display:flex; flex-wrap:wrap; align-items:center; gap:10px 22px;
  font-size:14px; color:var(--ink-3);
}
.meta-item{ display:inline-flex; align-items:center; gap:6px; }
.meta-item svg{ color:var(--primary); flex:0 0 auto; }

/* ---------- 正文排版 ---------- */
.article-body{ font-size:16px; line-height:1.9; color:var(--ink-2); }
@media (min-width:1024px){ .article-body{ font-size:17px; line-height:1.88; } }
.article-body > * + *{ margin-top:20px; }
.article-body h2{
  position:relative;
  margin-top:44px;
  padding-left:14px;
  font-size:23px; line-height:1.5; font-weight:600; color:var(--ink);
}
.article-body h2::before{
  content:""; position:absolute; left:0; top:6px; bottom:6px; width:4px; border-radius:2px; background:var(--primary);
}
.article-body h3{ margin-top:32px; font-size:20px; line-height:1.5; font-weight:600; color:var(--ink); }
.article-body h4{ margin-top:24px; font-size:17px; font-weight:600; color:var(--ink); }
.article-body ul,.article-body ol{ padding-left:22px; }
.article-body ul{ list-style:disc; }
.article-body ol{ list-style:decimal; }
.article-body li + li{ margin-top:8px; }
.article-body li::marker{ color:var(--primary); }
.article-body a{ color:var(--primary); text-decoration:underline; text-underline-offset:3px; }
.article-body a:hover{ color:var(--primary-dark); }
.article-body strong{ color:var(--ink); }
.article-body img{ max-width:100%; height:auto; border-radius:14px; margin:24px auto; box-shadow:var(--shadow-sm); }
.article-body figure{ margin:24px 0; }
.article-body figcaption{ margin-top:8px; font-size:13px; color:var(--ink-3); text-align:center; }
.article-body blockquote{
  margin:24px 0; padding:16px 20px;
  border-left:3px solid var(--primary);
  background:var(--primary-soft);
  border-radius:0 12px 12px 0;
  color:var(--ink-2);
}
.article-body blockquote p{ margin:0; }
.article-body code{ background:#F1F5F9; padding:2px 6px; border-radius:6px; font-size:14px; color:var(--primary-dark); }
.article-body pre{
  background:#10222F; color:#E6EEF5; padding:18px; border-radius:14px; overflow-x:auto; font-size:14px; line-height:1.7;
}
.article-body table{ width:100%; border-collapse:collapse; font-size:15px; overflow:hidden; border-radius:12px; }
.article-body th,.article-body td{ border:1px solid var(--line); padding:10px 12px; text-align:left; }
.article-body th{ background:var(--primary-soft); color:var(--ink); font-weight:600; }
.article-body hr{ border:none; border-top:1px solid var(--line); margin:32px 0; }

.empty-state{
  border:1px dashed var(--line);
  border-radius:var(--radius-md);
  background:#FAFCFE;
  padding:48px 24px;
  text-align:center;
}
.empty-state h2{ font-size:20px; margin-bottom:10px; }
.empty-state p{ font-size:15px; color:var(--ink-3); }
.empty-state .btn{margin-top:20px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:46px; padding:0 24px; border-radius:var(--radius-sm);
  font-size:15px; font-weight:600; cursor:pointer; border:1px solid transparent;
  transition:background .18s ease, color .18s ease, transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.btn-primary{ background:var(--primary); color:#fff; }
.btn-primary:hover{ background:var(--primary-dark); transform:translateY(-1px); box-shadow:var(--shadow-md); }
.btn-primary:active{ transform:translateY(0); }
.btn-outline{ border-color:var(--primary); color:var(--primary); background:#fff; }
.btn-outline:hover{ background:var(--primary-soft); }
.btn-accent{ background:var(--accent); color:#fff; }
.btn-accent:hover{ background:#DA6520; transform:translateY(-1px); box-shadow:var(--shadow-md); }
.btn-ghost{
  height:38px; padding:0 16px; border-radius:999px;
  border:1px solid var(--line); background:#fff; color:var(--ink-2);
  font-size:14px; font-weight:500; cursor:pointer;
  display:inline-flex; align-items:center; gap:6px;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-ghost:hover{ background:var(--primary-soft); color:var(--primary); border-color:var(--primary-soft); }
.link-arrow{ color:var(--primary); font-size:15px; font-weight:600; display:inline-flex; align-items:center; gap:6px; }
.link-arrow svg{ transition:transform .2s ease; }
.link-arrow:hover svg{ transform:translateX(3px); }

/* ---------- 标签与分享 ---------- */
.tag-row{ display:flex; flex-wrap:wrap; gap:8px; }
.tag{
  display:inline-flex; align-items:center; height:28px; padding:0 12px;
  border-radius:999px; font-size:13px;
  background:var(--primary-soft); color:var(--primary-dark);
  transition:background .18s ease,color .18s ease;
}
.tag:hover{ background:var(--primary); color:#fff; }

.share-bar{
  display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:12px;
  padding-top:20px; margin-top:24px; border-top:1px solid var(--line);
}
.share-tip{ font-size:13px; color:var(--success); }

/* ---------- 上下篇 ---------- */
.pager-grid{ display:grid; gap:14px; }
@media (min-width:768px){ .pager-grid{ grid-template-columns:1fr 1fr; } }
.pager-card{
  display:block; padding:18px 20px; border:1px solid var(--line);
  border-radius:var(--radius-md); background:#fff; box-shadow:var(--shadow-sm);
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.pager-card:hover{ transform:translateY(-2px); box-shadow:var(--shadow-md); border-color:var(--primary-soft); }
.pager-label{ font-size:12px; color:var(--ink-3); }
.pager-title{ margin-top:6px; font-size:16px; font-weight:600; color:var(--ink); }
.pager-card:hover .pager-title{ color:var(--primary); }
.pager-card.is-next{ text-align:right; }

/* ---------- 侧栏 ---------- */
.side-sticky{ position:sticky; top:96px; display:grid; gap:20px; }
.side-card{ background:#fff; border:1px solid var(--line); border-radius:var(--radius-md); box-shadow:var(--shadow-sm); padding:20px; }
.side-title{ font-size:16px; font-weight:600; color:var(--ink); display:flex; align-items:center; gap:8px; }
.side-title::before{ content:""; width:4px; height:16px; border-radius:2px; background:var(--primary); }
.side-list{ margin-top:14px; display:grid; gap:2px; }
.side-list a{
  display:flex; align-items:center; justify-content:space-between; gap:8px;
  padding:10px 2px; font-size:14px; color:var(--ink-2);
  border-bottom:1px solid var(--line);
  transition:color .16s ease, padding-left .16s ease;
}
.side-list a:last-child{ border-bottom:none; }
.side-list a:hover{ color:var(--primary); padding-left:6px; }
.side-cta{
  background:linear-gradient(180deg,#E8F2FA 0%,#F6FAFD 100%);
  border:1px solid #D6E7F4;
}
.side-cta p{ margin-top:10px; font-size:14px; color:var(--ink-2); }

/* ---------- 相关推荐 ---------- */
.section-head{ display:flex; align-items:flex-end; justify-content:space-between; gap:16px; }
.section-title{
  position:relative; padding-left:14px;
  font-size:24px; line-height:1.4; font-weight:600; color:var(--ink);
}
.section-title::before{ content:""; position:absolute; left:0; top:6px; bottom:6px; width:4px; border-radius:2px; background:var(--primary); }
.card{
  display:flex; flex-direction:column; overflow:hidden;
  background:#fff; border:1px solid var(--line); border-radius:var(--radius-md);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  height:100%;
}
.card:hover{ transform:translateY(-2px); box-shadow:var(--shadow-md); border-color:var(--primary-soft); }
.card-media{ position:relative; aspect-ratio:16/9; overflow:hidden; background:var(--primary-soft); }
.card-media img{ width:100%; height:100%; object-fit:cover; transition:transform .3s ease; }
.card:hover .card-media img{ transform:scale(1.04); }
.card-body{ padding:18px 20px 20px; display:flex; flex-direction:column; gap:10px; flex:1; }
.card-title{ font-size:18px; line-height:1.5; font-weight:600; color:var(--ink); display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.card:hover .card-title{ color:var(--primary); }
.card-text{ font-size:14px; line-height:1.8; color:var(--ink-2); display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.card-foot{ margin-top:auto; padding-top:12px; border-top:1px solid var(--line); display:flex; align-items:center; justify-content:space-between; font-size:13px; color:var(--ink-3); }

/* ---------- 底部 CTA ---------- */
.cta-band{ background:var(--primary-soft); border-top:1px solid #D6E7F4; border-bottom:1px solid #D6E7F4; }
.cta-inner{ display:flex; flex-direction:column; gap:20px; padding:40px 0; }
@media (min-width:1024px){ .cta-inner{ flex-direction:row; align-items:center; justify-content:space-between; padding:52px 0; } }
.cta-title{ font-size:24px; line-height:1.4; font-weight:600; color:var(--ink); }
.cta-desc{ margin-top:10px; font-size:15px; color:var(--ink-2); max-width:620px; }
.cta-actions{ display:flex; flex-wrap:wrap; gap:12px; }

/* ---------- 页脚 ---------- */
.site-footer{ background:#fff; border-top:1px solid var(--line); }
.footer-bottom{ margin-top:40px; padding-top:22px; border-top:1px solid var(--line); display:flex; flex-direction:column; gap:10px; }
@media (min-width:640px){ .footer-bottom{ flex-direction:row; align-items:center; justify-content:space-between; } }
.site-footer a{ transition:color .16s ease; }
.site-footer a:hover{ color:var(--primary); }

/* 水波细线分隔 */
.wave-line{ display:block; width:160px; height:10px; color:rgba(14,107,168,.28); }

/* roulang page: category1 */
:root{
  --primary:#0E6BA8;
  --primary-dark:#0A4E7D;
  --primary-soft:#E8F2FA;
  --accent:#F2762A;
  --accent-soft:#FFF1E6;
  --ink:#16222C;
  --ink-2:#4A5C6B;
  --ink-3:#8595A3;
  --line:#E4EBF2;
  --bg:#F5F8FB;
  --surface:#FFFFFF;
  --r-sm:10px;
  --r-md:16px;
  --shadow-sm:0 1px 2px rgba(16,34,48,.05);
  --shadow-md:0 6px 20px rgba(16,34,48,.08);
  --shadow-lg:0 18px 40px rgba(16,34,48,.10);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none;padding:0}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:0;line-height:1.4}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:8px}

.container-x{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:768px){.container-x{padding-left:24px;padding-right:24px}}
@media (min-width:1024px){.container-x{padding-left:32px;padding-right:32px}}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--primary-soft);border-bottom:1px solid #D9E9F5}
.topbar-inner{height:32px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--primary-dark)}
.topbar a{color:var(--primary-dark);font-weight:500}
.topbar a:hover{color:var(--primary)}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 1px 2px rgba(16,34,48,.04)}
.nav-search{
  position:relative;
  display:flex;
  align-items:center;
  gap:10px;
  height:46px;
  padding:0 6px 0 16px;
  background:#fff;
  border:1.5px solid var(--line);
  border-radius:999px;
  transition:border-color .2s ease, box-shadow .2s ease;
  box-shadow:var(--shadow-sm);
}
.nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(14,107,168,.14)}
.search-input{flex:1;min-width:0;border:0;outline:0;background:transparent;font-size:15px;color:var(--ink)}
.search-input::placeholder{color:var(--ink-3)}
.search-btn{
  flex:none;
  height:34px;
  padding:0 18px;
  border-radius:999px;
  background:var(--primary-soft);
  color:var(--primary);
  font-size:14px;
  font-weight:600;
  transition:background-color .2s ease,color .2s ease;
}
.search-btn:hover{background:#D8EAF7}
.nav-search:focus-within .search-btn{background:var(--primary);color:#fff}
.icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--ink-2);
  background:#fff;transition:border-color .2s ease,color .2s ease,background-color .2s ease;
}
.icon-btn:hover{border-color:#CFE1F0;color:var(--primary);background:var(--primary-soft)}
.nav-link{position:relative;padding:4px 0;font-size:15px;color:var(--ink-2);transition:color .2s ease}
.nav-link:hover{color:var(--primary)}
.nav-link.is-active{color:var(--primary);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--primary)}
.mobile-search{display:none;padding:0 20px 12px}
.mobile-search.open{display:block}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:10px;
  font-size:15px;font-weight:600;
  transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm)}
.btn-ghost{background:#fff;color:var(--primary);border:1px solid var(--primary)}
.btn-ghost:hover{background:var(--primary-soft);transform:translateY(-1px)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:var(--shadow-sm)}
.btn-accent:hover{background:#DE661C;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-accent:active{transform:translateY(0)}
.link-arrow{display:inline-flex;align-items:center;gap:4px;color:var(--primary);font-size:14px;font-weight:600}
.link-arrow svg{transition:transform .2s ease}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);padding:20px 0 0}
.crumb a{color:var(--ink-3)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:#C3D2DE}
.crumb .now{color:var(--ink-3)}

/* ---------- 分类 Hero ---------- */
.hero-cat{
  position:relative;
  background-color:#EAF3FA;
  background-image:linear-gradient(180deg,rgba(232,242,250,.93) 0%,rgba(245,248,251,.97) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  padding:40px 0 48px;
}
.hero-cat h1{font-size:28px;font-weight:700;line-height:1.35;margin-top:16px;max-width:760px}
@media (min-width:1024px){.hero-cat h1{font-size:40px;line-height:1.25}}
.hero-sub{margin-top:14px;font-size:16px;color:var(--ink-2);max-width:640px}
.hero-facts{display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:24px}
.hero-fact{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2)}
.hero-fact strong{color:var(--primary);font-weight:700;font-size:17px}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:500;line-height:18px}
.badge-primary{background:var(--primary-soft);color:var(--primary)}
.badge-accent{background:var(--accent-soft);color:var(--accent)}
.wave-line{height:12px;width:160px;margin-top:20px;opacity:.55}

/* ---------- 板块 ---------- */
.section{padding:56px 0}
@media (min-width:1024px){.section{padding:88px 0}}
.section-head{max-width:780px;margin-bottom:32px}
.section-head h2{position:relative;padding-left:16px;font-size:24px;font-weight:600}
.section-head h2::before{content:"";position:absolute;left:0;top:6px;width:4px;height:20px;border-radius:2px;background:var(--primary)}
@media (min-width:1024px){.section-head h2{font-size:30px}}

/* ---------- 入口卡片 ---------- */
.entry-grid{display:grid;gap:24px}
@media (min-width:768px){.entry-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.entry-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:16px;overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.entry-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#D3E4F0}
.entry-media{aspect-ratio:16/9;overflow:hidden;background:var(--primary-soft)}
.entry-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.entry-card:hover .entry-media img{transform:scale(1.04)}
.entry-body{flex:1;padding:20px 20px 18px}
.entry-body h3{margin-top:12px;font-size:19px;font-weight:600}
.entry-body p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--ink-2)}
.entry-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 20px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-3)}

/* ---------- 流程步骤 ---------- */
.steps{display:grid;gap:20px}
@media (min-width:768px){.steps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,minmax(0,1fr))}}
.step{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 20px;box-shadow:var(--shadow-sm);transition:box-shadow .22s ease,transform .22s ease}
.step:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.step-num{width:36px;height:36px;border-radius:10px;background:var(--primary-soft);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700}
.step h3{margin-top:14px;font-size:17px;font-weight:600}
.step p{margin-top:8px;font-size:14px;line-height:1.8;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item + .faq-item{margin-top:14px}
.faq-item.active{border-color:#CFE1F0;box-shadow:var(--shadow-sm)}
.faq-q{position:relative;width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;text-align:left;font-size:16px;font-weight:600;color:var(--ink)}
.faq-q::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:0;border-radius:2px;background:var(--primary);transition:height .24s ease}
.faq-item.active .faq-q::before{height:20px}
.faq-icon{flex:none;width:22px;height:22px;color:var(--primary);transition:transform .24s ease}
.faq-item.active .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-item.active .faq-a{max-height:360px}
.faq-a-inner{padding:0 20px 20px;font-size:15px;line-height:1.9;color:var(--ink-2)}

/* ---------- 底部转化带 ---------- */
.cta-band{
  background:var(--primary-soft);
  border:1px solid #D5E6F3;
  border-radius:20px;
  padding:32px 24px;
  display:flex;flex-direction:column;align-items:flex-start;gap:22px;
  box-shadow:var(--shadow-sm);
}
@media (min-width:1024px){
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:44px 48px;gap:40px}
}
.cta-band h2{font-size:24px;font-weight:600}
@media (min-width:1024px){.cta-band h2{font-size:28px}}
.cta-band p{margin-top:10px;font-size:15px;color:var(--ink-2);max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line)}
.footer-link{font-size:14px;color:var(--ink-2);transition:color .2s ease}
.footer-link:hover{color:var(--primary)}

/* ---------- 移动端抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(16,34,48,.42);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:70}
.drawer-mask.show{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;background:#fff;z-index:80;
  transform:translateX(100%);transition:transform .28s ease;
  padding:20px;overflow-y:auto;
  box-shadow:-8px 0 30px rgba(16,34,48,.12);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-nav{margin-top:18px;display:flex;flex-direction:column}
.drawer-nav a{padding:13px 2px;font-size:15px;color:var(--ink-2);border-bottom:1px solid var(--line)}
.drawer-nav a:hover{color:var(--primary)}
.drawer-nav a.is-active{color:var(--primary);font-weight:600}
.close-btn{width:34px;height:34px;border-radius:9px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--ink-2)}
.close-btn:hover{color:var(--primary);border-color:#CFE1F0}

@media (max-width:520px){
  .hero-cat h1{font-size:24px}
  .section-head h2{font-size:22px}
  .cta-band h2{font-size:22px}
}

/* roulang page: category2 */
:root{
  --primary:#0E6BA8;
  --primary-dark:#0A4E7D;
  --primary-soft:#E8F2FA;
  --accent:#F2762A;
  --accent-soft:#FFF1E6;
  --ink:#16222C;
  --ink-2:#4A5C6B;
  --ink-3:#8595A3;
  --line:#E4EBF2;
  --bg:#F5F8FB;
  --surface:#FFFFFF;
  --success:#1E9E6A;
  --warning:#D9483B;
  --radius-btn:10px;
  --radius-card:16px;
  --shadow-sm:0 1px 2px rgba(16,34,48,.05);
  --shadow-md:0 6px 20px rgba(16,34,48,.08);
  --shadow-lg:0 18px 40px rgba(16,34,48,.10);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:28px;
  color:var(--ink-2);
  background:var(--bg);
  letter-spacing:.01em;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
  border-radius:6px;
}
.container-x{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:768px){
  .container-x{padding-left:24px;padding-right:24px}
}
@media (min-width:1024px){
  .container-x{padding-left:32px;padding-right:32px}
}
.section{padding-top:56px;padding-bottom:56px}
@media (min-width:1024px){
  .section{padding-top:88px;padding-bottom:88px}
}
.section-title{
  position:relative;
  padding-left:14px;
  font-size:24px;
  line-height:34px;
  font-weight:600;
  color:var(--ink);
  letter-spacing:0;
}
.section-title::before{
  content:"";
  position:absolute;
  left:0;
  top:6px;
  bottom:6px;
  width:4px;
  border-radius:2px;
  background:var(--primary);
}
@media (min-width:1024px){
  .section-title{font-size:30px;line-height:40px}
}
.section-sub{margin-top:12px;font-size:15px;line-height:26px;color:var(--ink-2);max-width:720px}
.wave-line{display:block;margin-top:14px}
/* 按钮 */
.btn-primary,.btn-outline,.btn-accent{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:46px;
  padding:0 24px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .2s ease, color .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm)}
.btn-outline{background:#fff;border-color:var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--primary-soft)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:var(--shadow-sm)}
.btn-accent:hover{background:#DD6519;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-accent:active{transform:translateY(0)}
/* 徽章与标签 */
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 14px;
  border-radius:999px;
  background:var(--primary-soft);
  color:var(--primary);
  font-size:13px;
  font-weight:500;
  line-height:20px;
}
.badge{
  display:inline-flex;
  align-items:center;
  padding:3px 10px;
  border-radius:6px;
  background:var(--primary-soft);
  color:var(--primary);
  font-size:12px;
  font-weight:500;
  line-height:18px;
}
.badge-accent{background:var(--accent-soft);color:var(--accent)}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--primary);
  font-size:14px;
  font-weight:500;
}
.link-arrow svg{transition:transform .2s ease}
.link-arrow:hover svg{transform:translateX(3px)}
/* 头部 */
.topbar{
  background:var(--primary-soft);
  border-bottom:1px solid var(--line);
}
.site-header{
  position:sticky;
  top:0;
  z-index:40;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-sm);
}
.search-input{
  width:100%;
  height:48px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#F7FAFC;
  padding:0 112px 0 44px;
  font-size:15px;
  color:var(--ink);
  transition:border-color .2s ease, box-shadow .2s ease, background-color .2s ease;
}
.search-input::placeholder{color:var(--ink-3)}
.search-input:focus{
  outline:none;
  background:#fff;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(14,107,168,.18);
}
.search-input.mobile{padding:0 16px 0 44px}
.search-btn{
  position:absolute;
  right:6px;
  top:50%;
  transform:translateY(-50%);
  height:36px;
  padding:0 18px;
  border-radius:999px;
  border:none;
  background:var(--primary);
  color:#fff;
  font-size:14px;
  font-weight:500;
  cursor:pointer;
  transition:background-color .2s ease;
}
.search-btn:hover{background:var(--primary-dark)}
.icon-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;
  height:40px;
  border-radius:10px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink-2);
  cursor:pointer;
  transition:border-color .2s ease, color .2s ease, background-color .2s ease;
}
.icon-btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}
/* 首屏 */
.hero-wrap{
  position:relative;
  border-bottom:1px solid var(--line);
  background-image:
    linear-gradient(180deg, rgba(232,242,250,.94) 0%, rgba(245,248,251,.97) 64%, #F5F8FB 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
}
.hero-visual{
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-lg);
  overflow:hidden;
}
/* 筛选条 */
.filter-bar{
  position:sticky;
  top:56px;
  z-index:30;
  background:#fff;
  border-bottom:1px solid var(--line);
}
@media (min-width:1024px){
  .filter-bar{top:72px}
}
.filter-scroll{
  display:flex;
  align-items:center;
  gap:10px;
  overflow-x:auto;
  padding:12px 0;
  scrollbar-width:none;
}
.filter-scroll::-webkit-scrollbar{display:none}
.filter-chip{
  flex:0 0 auto;
  padding:8px 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink-2);
  font-size:14px;
  line-height:20px;
  transition:background-color .2s ease, color .2s ease, border-color .2s ease;
}
.filter-chip:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}
.filter-chip.active{background:var(--primary);border-color:var(--primary);color:#fff}
/* 长条列表 */
.news-group + .news-group{margin-top:44px}
.news-list{display:flex;flex-direction:column;gap:16px;margin-top:22px}
.news-row{
  display:flex;
  gap:20px;
  padding:16px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
  transition:box-shadow .22s ease, transform .22s ease, border-color .22s ease;
}
.news-row:hover{
  box-shadow:var(--shadow-md);
  transform:translateY(-2px);
  border-color:#D7E5F0;
}
.news-thumb{
  flex:0 0 200px;
  width:200px;
  height:130px;
  border-radius:12px;
  overflow:hidden;
  background:var(--primary-soft);
}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-row:hover .news-thumb img{transform:scale(1.04)}
.news-title{
  font-size:18px;
  line-height:28px;
  font-weight:600;
  color:var(--ink);
  transition:color .2s ease;
}
@media (min-width:1024px){
  .news-title{font-size:20px;line-height:30px}
}
.news-row:hover .news-title{color:var(--primary-dark)}
.clamp-2{
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
@media (max-width:640px){
  .news-row{flex-direction:column;gap:14px}
  .news-thumb{flex:none;width:100%;height:176px}
}
/* 数据卡 */
.stat-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  padding:14px 16px;
  box-shadow:var(--shadow-sm);
  transition:box-shadow .2s ease, transform .2s ease;
}
.stat-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.stat-label{display:block;font-size:12px;line-height:18px;color:var(--ink-3)}
.stat-value{display:block;margin-top:4px;font-size:16px;line-height:26px;font-weight:600;color:var(--ink)}
/* 表单 */
.field{
  width:100%;
  height:46px;
  border-radius:var(--radius-btn);
  border:1px solid var(--line);
  background:#fff;
  padding:0 16px;
  font-size:15px;
  color:var(--ink);
  transition:border-color .2s ease, box-shadow .2s ease;
}
.field::placeholder{color:var(--ink-3)}
.field:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(14,107,168,.18)}
/* FAQ */
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  overflow:hidden;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.faq-item + .faq-item{margin-top:12px}
.faq-item[open]{border-color:#CBDCE9;box-shadow:var(--shadow-md)}
.faq-item summary{
  position:relative;
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 20px;
  font-size:16px;
  line-height:26px;
  font-weight:600;
  color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";
  position:absolute;
  left:0;
  top:14px;
  bottom:14px;
  width:3px;
  border-radius:0 2px 2px 0;
  background:var(--primary);
  opacity:0;
  transition:opacity .2s ease;
}
.faq-item[open] summary::before{opacity:1}
.faq-icon{flex:0 0 auto;color:var(--primary);transition:transform .24s ease}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-body{padding:0 20px 20px;font-size:15px;line-height:26px;color:var(--ink-2)}
/* CTA 带 */
.cta-band{
  background:var(--primary-soft);
  border:1px solid #D3E6F5;
  border-radius:var(--radius-card);
  padding:32px 24px;
  box-shadow:var(--shadow-sm);
}
@media (min-width:1024px){
  .cta-band{padding:44px 48px}
}
/* 移动抽屉 */
.drawer{position:fixed;inset:0;z-index:60;display:none}
.drawer.open{display:block}
.drawer-mask{position:absolute;inset:0;background:rgba(16,34,48,.36)}
.drawer-panel{
  position:absolute;
  top:0;
  right:0;
  width:304px;
  max-width:88%;
  height:100%;
  background:#fff;
  padding:20px;
  overflow-y:auto;
  transform:translateX(100%);
  transition:transform .25s ease;
}
.drawer.show .drawer-panel{transform:translateX(0)}
.drawer-link{
  display:block;
  padding:12px 14px;
  border-radius:10px;
  color:var(--ink-2);
  font-size:15px;
  transition:background-color .2s ease, color .2s ease;
}
.drawer-link:hover{background:var(--primary-soft);color:var(--primary)}
.drawer-link.active{background:var(--primary-soft);color:var(--primary);font-weight:600}
/* 锚点偏移 */
section[id],[id^="sec-"]{scroll-margin-top:140px}

/* roulang page: category3 */
:root{
    --primary:#0E6BA8;
    --primary-dark:#0A4E7D;
    --primary-soft:#E8F2FA;
    --accent:#F2762A;
    --accent-soft:#FFF1E6;
    --ink:#16222C;
    --ink-2:#4A5C6B;
    --ink-3:#8595A3;
    --line:#E4EBF2;
    --bg:#F5F8FB;
    --surface:#FFFFFF;
    --success:#1E9E6A;
    --warning:#D9483B;
    --radius-card:16px;
    --radius-ctrl:10px;
    --shadow-sm:0 1px 2px rgba(16,34,48,.05);
    --shadow-md:0 6px 20px rgba(16,34,48,.08);
    --shadow-lg:0 18px 40px rgba(16,34,48,.10);
    --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:var(--font);
    font-size:16px;
    line-height:1.75;
    color:var(--ink-2);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:600;line-height:1.35;letter-spacing:0;}
  p{margin:0;}
  a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;}
  img{max-width:100%;display:block;}
  input,button{font:inherit;color:inherit;}
  button{cursor:pointer;border:0;background:none;}
  ul,ol{margin:0;padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

  .container-x{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
  @media (min-width:768px){.container-x{padding-left:24px;padding-right:24px;}}
  @media (min-width:1024px){.container-x{padding-left:32px;padding-right:32px;}}

  /* ---------- header ---------- */
  .site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:saturate(150%) blur(6px);}
  .topbar{height:32px;background:var(--primary-soft);color:var(--primary-dark);font-size:13px;}
  .topbar .container-x{height:100%;display:flex;align-items:center;justify-content:space-between;}
  .topbar-note{display:flex;align-items:center;gap:8px;}
  .topbar-dot{width:6px;height:6px;border-radius:999px;background:var(--accent);display:inline-block;}
  .header-inner{display:flex;align-items:center;gap:20px;height:72px;}
  .logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .logo-mark{width:36px;height:36px;border-radius:10px;background:var(--primary);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm);}
  .logo-text{font-size:18px;font-weight:600;color:var(--ink);white-space:nowrap;}
  .nav-search{
    display:flex;align-items:center;flex:1 1 auto;max-width:520px;height:46px;
    background:#fff;border:1px solid var(--line);border-radius:999px;padding:0 5px 0 16px;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(14,107,168,.16);}
  .nav-search svg{flex-shrink:0;color:var(--ink-3);}
  .nav-search input{flex:1;min-width:0;height:100%;border:0;background:transparent;outline:none;font-size:15px;padding:0 10px;color:var(--ink);}
  .nav-search input::placeholder{color:var(--ink-3);}
  .nav-search-btn{
    height:36px;padding:0 18px;border-radius:999px;background:var(--primary);color:#fff;
    font-size:14px;font-weight:600;white-space:nowrap;
  }
  .nav-search-btn:hover{background:var(--primary-dark);}
  .nav-link{position:relative;padding:4px 0;font-size:15px;color:var(--ink-2);white-space:nowrap;}
  .nav-link:hover{color:var(--primary);}
  .nav-link.is-active{color:var(--primary);font-weight:600;}
  .nav-link.is-active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--primary);}
  .nav-cta{
    display:inline-flex;align-items:center;justify-content:center;height:42px;padding:0 20px;border-radius:var(--radius-ctrl);
    background:var(--accent);color:#fff;font-size:14px;font-weight:600;white-space:nowrap;box-shadow:var(--shadow-sm);
  }
  .nav-cta:hover{background:#DE6519;transform:translateY(-1px);box-shadow:var(--shadow-md);}
  .icon-btn{width:40px;height:40px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;color:var(--ink);border:1px solid var(--line);background:#fff;}
  .icon-btn:hover{border-color:var(--primary);color:var(--primary);}
  .mobile-search-bar{display:none;padding:10px 0 14px;border-top:1px solid var(--line);}
  .mobile-search-bar.is-open{display:block;}
  .mobile-search-row{display:flex;align-items:center;gap:10px;}
  .mobile-search-row .nav-search{max-width:none;height:44px;}
  .cancel-btn{font-size:14px;color:var(--ink-3);padding:0 4px;white-space:nowrap;}

  /* ---------- drawer ---------- */
  .drawer-mask{position:fixed;inset:0;background:rgba(16,34,48,.42);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:80;}
  .drawer-mask.is-open{opacity:1;visibility:visible;}
  .drawer{
    position:fixed;top:0;right:0;height:100%;width:86%;max-width:360px;background:#fff;z-index:90;
    transform:translateX(102%);transition:transform .28s ease;box-shadow:var(--shadow-lg);
    display:flex;flex-direction:column;overflow-y:auto;padding:20px;
  }
  .drawer.is-open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
  .drawer-nav{display:flex;flex-direction:column;gap:2px;margin-top:22px;}
  .drawer-nav a{padding:12px 14px;border-radius:10px;font-size:15px;color:var(--ink-2);}
  .drawer-nav a:hover,.drawer-nav a.is-active{background:var(--primary-soft);color:var(--primary);font-weight:600;}
  .drawer-cta{margin-top:14px;display:flex;justify-content:center;}

  /* ---------- breadcrumb ---------- */
  .breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);padding:18px 0 4px;flex-wrap:wrap;}
  .breadcrumb a{color:var(--ink-2);}
  .breadcrumb a:hover{color:var(--primary);}
  .breadcrumb .sep{color:var(--line);}
  .breadcrumb .current{color:var(--ink-3);}

  /* ---------- hero ---------- */
  .hero-cat{position:relative;overflow:hidden;background:linear-gradient(180deg,#EAF3FA 0%,#F5F8FB 100%);border-bottom:1px solid var(--line);}
  .hero-cat::after{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:url('/assets/images/backpic/back-1.png');
    background-size:cover;background-position:center right;opacity:.07;
  }
  .hero-cat-inner{position:relative;z-index:1;display:grid;gap:32px;padding-top:44px;padding-bottom:52px;}
  @media (min-width:1024px){
    .hero-cat-inner{grid-template-columns:7fr 5fr;align-items:center;gap:48px;padding-top:64px;padding-bottom:76px;}
  }
  .badge{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;background:var(--surface);border:1px solid var(--line);color:var(--primary);font-size:12px;font-weight:600;letter-spacing:.02em;}
  .hero-cat h1{font-size:28px;line-height:1.3;font-weight:700;margin:16px 0 14px;}
  @media (min-width:768px){.hero-cat h1{font-size:34px;}}
  @media (min-width:1024px){.hero-cat h1{font-size:40px;line-height:1.25;}}
  .hero-sub{font-size:16px;color:var(--ink-2);max-width:560px;}
  .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
  .tag{padding:6px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:var(--ink-2);}
  .tag:hover{border-color:var(--primary);color:var(--primary);}
  .hero-visual{position:relative;}
  .hero-visual img{width:100%;border-radius:var(--radius-card);box-shadow:var(--shadow-md);object-fit:cover;aspect-ratio:16/11;}
  .hero-float{
    position:absolute;left:-4px;bottom:-18px;background:#fff;border:1px solid var(--line);border-radius:14px;
    padding:14px 18px;box-shadow:var(--shadow-lg);max-width:270px;
  }
  .hero-float strong{display:block;font-size:15px;color:var(--ink);}
  .hero-float span{font-size:13px;color:var(--ink-3);}

  .wave-divider{width:160px;height:10px;margin:18px 0 0;color:rgba(14,107,168,.22);}

  /* ---------- layout ---------- */
  .main-section{padding:56px 0 8px;}
  @media (min-width:1024px){.main-section{padding:80px 0 12px;}}
  .index-layout{display:grid;gap:32px;}
  @media (min-width:1024px){
    .index-layout{grid-template-columns:258px minmax(0,1fr);gap:56px;align-items:start;}
  }
  .toc-wrap{margin:0 -20px;padding:0 20px;overflow-x:auto;}
  @media (min-width:1024px){.toc-wrap{margin:0;padding:0;overflow:visible;}}
  .toc{display:flex;gap:8px;padding-bottom:6px;}
  @media (min-width:1024px){
    .toc{display:block;position:sticky;top:120px;padding-bottom:0;}
  }
  .toc-title{display:none;}
  @media (min-width:1024px){
    .toc-title{display:block;font-size:13px;font-weight:600;color:var(--ink-3);letter-spacing:.08em;padding:0 14px 10px;}
  }
  .toc-link{
    display:block;white-space:nowrap;padding:10px 14px;border-radius:10px;font-size:14px;color:var(--ink-2);
    border-left:3px solid transparent;background:#fff;border-top:1px solid var(--line);border-right:1px solid var(--line);border-bottom:1px solid var(--line);
  }
  @media (min-width:1024px){
    .toc-link{background:transparent;border:0;border-left:3px solid transparent;border-radius:0 10px 10px 0;margin-bottom:2px;}
    .toc-link:hover{background:var(--primary-soft);color:var(--primary);}
    .toc-link.is-active{background:var(--primary-soft);color:var(--primary);font-weight:600;border-left-color:var(--primary);}
  }
  .toc-side-card{margin-top:24px;padding:20px;border-radius:var(--radius-card);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);}
  .toc-side-card h3{font-size:15px;}
  .toc-side-card p{font-size:13px;color:var(--ink-3);margin-top:8px;line-height:1.7;}

  .content-col{display:flex;flex-direction:column;gap:24px;}
  .content-block{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:26px 22px;box-shadow:var(--shadow-sm);}
  @media (min-width:768px){.content-block{padding:34px 34px 32px;}}
  .block-head{display:flex;align-items:flex-start;gap:14px;margin-bottom:14px;}
  .block-index{
    flex-shrink:0;width:40px;height:40px;border-radius:12px;background:var(--primary-soft);color:var(--primary);
    display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;
  }
  .block-head h2{font-size:21px;line-height:1.4;}
  @media (min-width:768px){.block-head h2{font-size:24px;}}
  .block-head .block-sub{font-size:13px;color:var(--ink-3);margin-top:6px;}
  .content-block p{font-size:16px;line-height:1.85;color:var(--ink-2);}
  .content-block p + p{margin-top:14px;}

  .dot-list{margin-top:20px;display:flex;flex-direction:column;gap:2px;}
  .dot-list li{display:flex;gap:12px;padding:13px 0;border-top:1px solid var(--line);font-size:15px;color:var(--ink-2);}
  .dot-list li:first-child{border-top:0;}
  .dot-list li svg{flex-shrink:0;margin-top:5px;color:var(--primary);}
  .dot-list b{color:var(--ink);font-weight:600;}

  .step-list{margin-top:22px;display:flex;flex-direction:column;gap:0;}
  .step-item{position:relative;display:flex;gap:16px;padding-bottom:22px;}
  .step-item:last-child{padding-bottom:0;}
  .step-item::before{content:"";position:absolute;left:15px;top:34px;bottom:0;width:1px;background:var(--line);}
  .step-item:last-child::before{display:none;}
  .step-num{
    position:relative;z-index:1;flex-shrink:0;width:32px;height:32px;border-radius:999px;background:var(--primary-soft);
    color:var(--primary);font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center;
  }
  .step-body h4{font-size:16px;color:var(--ink);}
  .step-body p{font-size:14px;line-height:1.75;color:var(--ink-2);margin-top:5px;}

  .accent-panel{
    margin-top:24px;background:var(--accent-soft);border:1px solid #FFDFC4;border-radius:14px;padding:20px;
  }
  .accent-panel .accent-label{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--accent);}
  .accent-panel p{margin-top:10px;font-size:15px;color:#7A4415;}

  .mini-grid{margin-top:22px;display:grid;gap:14px;}
  @media (min-width:768px){.mini-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
  .mini-card{background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:18px;}
  .mini-card h3{font-size:16px;margin-bottom:8px;}
  .mini-card p{font-size:14px;line-height:1.7;color:var(--ink-2);}

  .figure{margin-top:22px;border-radius:14px;overflow:hidden;border:1px solid var(--line);}
  .figure img{width:100%;aspect-ratio:16/8;object-fit:cover;}
  .figure figcaption{font-size:13px;color:var(--ink-3);padding:10px 14px;background:#fff;text-align:center;}

  .split-cards{margin-top:22px;display:grid;gap:14px;}
  @media (min-width:768px){.split-cards{grid-template-columns:repeat(2,minmax(0,1fr));}}
  .split-card{border:1px solid var(--line);border-radius:14px;padding:20px;background:#fff;}
  .split-card h3{font-size:16px;display:flex;align-items:center;gap:8px;}
  .split-card h3 span{width:8px;height:8px;border-radius:999px;background:var(--primary);display:inline-block;}
  .split-card ul{margin-top:12px;display:flex;flex-direction:column;gap:9px;}
  .split-card li{font-size:14px;color:var(--ink-2);line-height:1.7;padding-left:16px;position:relative;}
  .split-card li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:999px;background:var(--line);}

  /* ---------- FAQ ---------- */
  .faq-section{padding:64px 0 8px;}
  @media (min-width:1024px){.faq-section{padding:88px 0 12px;}}
  .section-head{margin-bottom:28px;}
  .section-head h2{font-size:24px;position:relative;padding-left:16px;}
  .section-head h2::before{content:"";position:absolute;left:0;top:5px;bottom:5px;width:4px;border-radius:3px;background:var(--primary);}
  @media (min-width:768px){.section-head h2{font-size:30px;}}
  .section-head p{margin-top:10px;font-size:15px;color:var(--ink-3);padding-left:16px;}
  .faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
  details.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-sm);transition:box-shadow .22s ease,border-color .22s ease;}
  details.faq-item[open]{border-color:#CFE3F1;box-shadow:var(--shadow-md);}
  details.faq-item summary{
    list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 20px;font-size:16px;font-weight:600;color:var(--ink);position:relative;
  }
  details.faq-item summary::-webkit-details-marker{display:none;}
  details.faq-item summary::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;background:transparent;transition:background .22s ease;}
  details.faq-item[open] summary::before{background:var(--primary);}
  .faq-icon{flex-shrink:0;width:22px;height:22px;color:var(--primary);transition:transform .22s ease;}
  details.faq-item[open] .faq-icon{transform:rotate(45deg);}
  .faq-body{padding:0 20px 20px 20px;font-size:15px;line-height:1.8;color:var(--ink-2);border-top:1px solid var(--line);padding-top:16px;}

  /* ---------- CTA ---------- */
  .cta-band{padding:56px 0 0;}
  @media (min-width:1024px){.cta-band{padding:80px 0 0;}}
  .cta-inner{
    background:var(--primary);border-radius:20px;padding:30px 24px;color:#fff;
    display:flex;flex-direction:column;gap:20px;box-shadow:var(--shadow-md);
  }
  @media (min-width:768px){.cta-inner{flex-direction:row;align-items:center;justify-content:space-between;padding:40px 44px;}}
  .cta-inner h2{color:#fff;font-size:22px;}
  @media (min-width:768px){.cta-inner h2{font-size:26px;}}
  .cta-inner p{color:rgba(255,255,255,.82);font-size:14px;margin-top:8px;max-width:560px;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:var(--radius-ctrl);font-size:15px;font-weight:600;transition:all .22s ease;}
  .btn-white{background:#fff;color:var(--primary);}
  .btn-white:hover{transform:translateY(-1px);box-shadow:var(--shadow-md);}
  .btn-outline-light{border:1px solid rgba(255,255,255,.6);color:#fff;}
  .btn-outline-light:hover{background:rgba(255,255,255,.14);}
  .btn-primary{background:var(--primary);color:#fff;}
  .btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-md);}
  .btn-ghost{border:1px solid var(--primary);color:var(--primary);background:#fff;}
  .btn-ghost:hover{background:var(--primary-soft);}
  .text-link{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14px;font-weight:600;}
  .text-link svg{transition:transform .2s ease;}
  .text-link:hover svg{transform:translateX(3px);}

  /* ---------- footer ---------- */
  .site-footer{margin-top:72px;background:#fff;border-top:1px solid var(--line);}
  .footer-grid{display:grid;gap:36px;padding:52px 0 0;}
  @media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:32px;padding-top:60px;}}
  .footer-brand{display:flex;align-items:center;gap:10px;}
  .footer-brand .logo-mark{width:32px;height:32px;border-radius:9px;}
  .footer-brand span{font-size:17px;font-weight:600;color:var(--ink);}
  .footer-grid h3{font-size:15px;margin-bottom:14px;}
  .footer-grid p{font-size:14px;color:var(--ink-2);line-height:1.8;}
  .footer-links{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--ink-2);}
  .footer-links a:hover{color:var(--primary);}
  .footer-meta{margin-top:36px;padding:18px 0 24px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:8px;font-size:13px;color:var(--ink-3);}
  @media (min-width:640px){.footer-meta{flex-direction:row;align-items:center;justify-content:space-between;}}

  .mobile-only{display:inline-flex;}
  @media (min-width:1024px){.mobile-only{display:none;}}
  .desktop-only{display:none;}
  @media (min-width:1024px){.desktop-only{display:flex;}}
  @media (max-width:767px){
    .topbar{display:none;}
    .header-inner{height:60px;gap:12px;}
    .logo-text{font-size:16px;}
  }