/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --brand:#1F6FB2;
  --brand-dark:#17578E;
  --brand-light:#EAF3FB;
  --accent:#E2793C;
  --accent-light:#FDF1E7;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --line:#E4ECF3;
  --ink:#12242F;
  --text:#55656F;
  --muted:#7C8B95;
  --ink-footer:#0E2C3F;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --shadow-sm:0 1px 2px rgba(16,42,67,.06),0 8px 24px -12px rgba(16,42,67,.18);
  --shadow-lg:0 2px 6px rgba(16,42,67,.08),0 18px 40px -18px rgba(16,42,67,.26);
  --ease:.25s cubic-bezier(.2,.7,.3,1);
}

/* ============ 基础重置 ============ */
*,*::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",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:650;line-height:1.32;letter-spacing:.2px}
p{margin:0}
a{color:var(--brand);text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease)}
a:hover{color:var(--brand-dark)}
img{max-width:100%;display:block;background:#EEF3F8}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 3px rgba(31,111,178,.28)}
::selection{background:rgba(31,111,178,.18)}

/* ============ 容器 ============ */
.container{max-width:1200px;padding-left:24px;padding-right:24px}
@media (min-width:1400px){.container{max-width:1240px}}
@media (max-width:575.98px){.container{padding-left:20px;padding-right:20px}}

/* ============ 头部导航 ============ */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow var(--ease)}
.site-header.is-scrolled{box-shadow:0 6px 22px -14px rgba(16,42,67,.4)}
.site-header-top-inner{display:flex;align-items:center;gap:24px;height:72px}
.site-logo{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:19px;letter-spacing:.2px;white-space:nowrap;flex:none}
.site-logo:hover{color:var(--brand)}
.site-logo-mark{width:36px;height:36px;border-radius:11px;background:linear-gradient(135deg,var(--brand),var(--brand-dark));display:grid;place-items:center;color:#fff;flex:none}
.site-search{flex:1;max-width:420px;position:relative;display:none;align-items:center}
.site-search-input{width:100%;height:40px;border:1px solid var(--line);border-radius:var(--r-btn);padding:0 46px 0 14px;font-size:14px;color:var(--ink);background:#F9FBFD;transition:border-color var(--ease),box-shadow var(--ease),background-color var(--ease)}
.site-search-input::placeholder{color:#93A3B0}
.site-search-input:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(31,111,178,.18)}
.site-search-btn{position:absolute;right:4px;width:34px;height:32px;border:0;border-radius:8px;background:transparent;color:var(--muted);display:grid;place-items:center;cursor:pointer;transition:var(--ease)}
.site-search-btn:hover{background:var(--brand-light);color:var(--brand)}
.site-header-actions{margin-left:auto;display:flex;align-items:center;gap:14px;flex:none}
.site-menu-toggle{width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;color:var(--ink);display:grid;place-items:center;cursor:pointer;transition:var(--ease)}
.site-menu-toggle:hover{border-color:var(--brand);color:var(--brand)}
@media (min-width:992px){.site-search{display:flex}.site-menu-toggle{display:none}}
.site-header-nav{border-top:1px solid var(--line);background:#fff}
.ui-tabs{display:flex;align-items:center;gap:8px;height:54px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding:0 2px}
.ui-tabs::-webkit-scrollbar{display:none}
.ui-tab{flex:none;display:inline-flex;align-items:center;height:36px;padding:0 18px;border-radius:999px;font-size:14.5px;color:var(--muted);font-weight:500;transition:var(--ease)}
.ui-tab:hover{color:var(--brand);background:var(--brand-light)}
.ui-tab.is-active{background:var(--brand);color:#fff;font-weight:600}
.ui-tab.is-active:hover{color:#fff}

/* 移动端抽屉 */
.ui-offcanvas{width:320px;border:0}
.ui-offcanvas .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.ui-offcanvas .offcanvas-title{font-size:17px}
.ui-mobile-nav{display:flex;flex-direction:column;gap:4px;margin:18px 0}
.ui-mobile-nav a{display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:var(--r-btn);color:var(--ink);font-size:15.5px;font-weight:500}
.ui-mobile-nav a:hover{background:var(--brand-light);color:var(--brand)}
.ui-mobile-nav a.is-active{background:var(--brand-light);color:var(--brand);font-weight:600;box-shadow:inset 3px 0 0 var(--brand)}

/* ============ 按钮 / 徽章 / 文字链 ============ */
.ui-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform var(--ease),background-color var(--ease),border-color var(--ease),color var(--ease),box-shadow var(--ease);white-space:nowrap;min-height:44px}
.ui-btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px -14px rgba(31,111,178,.85)}
.ui-btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -14px rgba(23,87,142,.9)}
.ui-btn-primary:active{transform:translateY(0) scale(.98)}
.ui-btn-ghost{background:#fff;color:var(--ink);border-color:#D7E2EC}
.ui-btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.ui-btn-ghost:active{transform:translateY(0) scale(.98)}
.ui-btn-accent{background:var(--accent);color:#fff}
.ui-btn-accent:hover{background:#cf6a2f;color:#fff;transform:translateY(-1px)}
.ui-btn-sm{height:40px;padding:0 18px;font-size:14px}
.ui-badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;background:var(--brand-light);color:var(--brand-dark);font-size:12px;font-weight:700;letter-spacing:.2px}
.ui-badge--accent{background:var(--accent-light);color:#B85E22}
.ui-badge--soft{background:#F1F5F9;color:var(--muted)}
.ui-link{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand)}
.ui-link svg{transition:transform var(--ease)}
.ui-link:hover svg{transform:translateX(4px)}
.ui-icon{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.ui-icon-sm{width:20px;height:20px}
.ui-icon-box{width:46px;height:46px;border-radius:13px;background:var(--brand-light);color:var(--brand);display:grid;place-items:center;flex:none}
.ui-icon-box--accent{background:var(--accent-light);color:var(--accent)}

/* ============ Hero ============ */
.site-hero{position:relative;overflow:hidden;background:#fff;padding:64px 0 88px}
.site-hero::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center right;opacity:.55}
.site-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(105deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.93) 42%,rgba(255,255,255,.68) 74%,rgba(255,255,255,.32) 100%)}
.site-hero-inner{position:relative;z-index:1}
.site-hero-title{font-size:clamp(28px,4vw,44px);line-height:1.24;font-weight:700;letter-spacing:-.2px;margin:18px 0 18px;max-width:620px}
.site-hero-sub{font-size:17px;line-height:1.85;color:var(--text);max-width:560px}
.site-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.site-hero-points{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:26px}
.site-hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted)}
.site-hero-media{position:relative;border-radius:20px;overflow:hidden;border:1px solid rgba(255,255,255,.85);box-shadow:0 28px 64px -30px rgba(16,42,67,.5)}
.site-hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.site-hero-media-tag{position:absolute;left:18px;bottom:18px;background:rgba(255,255,255,.94);border-radius:12px;padding:10px 14px;box-shadow:var(--shadow-sm);display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--ink);font-weight:600}
.site-hero-media-tag .ui-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);flex:none}
.site-stats{margin-top:64px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-sm);display:grid;grid-template-columns:repeat(4,1fr);padding:26px 0}
.site-stat{padding:0 26px;border-right:1px solid var(--line)}
.site-stat:last-child{border-right:0}
.site-stat-num{font-size:30px;font-weight:650;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.15}
.site-stat-num small{font-size:15px;font-weight:600;color:var(--brand);margin-left:3px}
.site-stat-desc{font-size:13.5px;color:var(--muted);margin-top:6px;line-height:1.6}

/* ============ 板块 ============ */
.site-section{padding:96px 0}
.site-section--soft{background:#fff}
.site-section-head{max-width:740px;margin-bottom:40px}
.site-section-title{font-size:clamp(24px,3vw,32px);line-height:1.3;font-weight:700}
.site-section-sub{margin-top:12px;font-size:15px;line-height:1.8;color:var(--muted)}

/* ============ Bento 功能分组 ============ */
.ui-bento{display:grid;grid-template-columns:1.25fr 1fr;gap:20px;align-items:stretch}
.ui-bento-main{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-sm);overflow:hidden;display:flex;flex-direction:column;transition:var(--ease)}
.ui-bento-main:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.ui-bento-main img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform var(--ease)}
.ui-bento-main:hover img{transform:scale(1.03)}
.ui-bento-main-body{padding:28px;display:flex;flex-direction:column;gap:12px}
.ui-bento-main-body h3{font-size:22px}
.ui-bento-main-body p{font-size:15px;line-height:1.8;color:var(--muted)}
.ui-bento-side{display:flex;flex-direction:column;gap:20px}
.ui-bento-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-sm);padding:24px;display:flex;gap:16px;flex:1;transition:var(--ease)}
.ui-bento-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#CFE0F0}
.ui-bento-item h3{font-size:17px;margin-bottom:8px}
.ui-bento-item p{font-size:14.5px;line-height:1.75;color:var(--muted)}

/* ============ 使用场景 ============ */
.ui-scene{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.ui-scene + .ui-scene{margin-top:76px}
.ui-scene-body h3{font-size:24px;line-height:1.4;margin:14px 0 14px}
.ui-scene-body p{font-size:15.5px;line-height:1.85;color:var(--text);max-width:520px}
.ui-scene-body .ui-link{margin-top:18px}
.ui-scene-media{border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-sm);border:1px solid var(--line)}
.ui-scene-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform var(--ease)}
.ui-scene-media:hover img{transform:scale(1.03)}
.ui-scene-list{margin-top:18px;display:flex;flex-direction:column;gap:8px}
.ui-scene-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.7;color:var(--text)}
.ui-scene-list svg{color:var(--brand);flex:none;margin-top:4px}

/* ============ 案例 ============ */
.ui-case{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;height:100%;display:flex;flex-direction:column;box-shadow:var(--shadow-sm);transition:var(--ease)}
.ui-case:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.ui-case img{width:100%;aspect-ratio:16/9;object-fit:cover}
.ui-case-body{padding:26px;display:flex;flex-direction:column;flex:1}
.ui-case-person{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--muted);margin-bottom:14px}
.ui-case-person b{color:var(--ink);font-size:14.5px;font-weight:600}
.ui-case-quote{font-size:15.5px;line-height:1.85;color:var(--text);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.ui-case-stats{display:flex;gap:34px;margin-top:auto;padding-top:20px;border-top:1px dashed var(--line)}
.ui-case-stat b{display:block;font-size:22px;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.3}
.ui-case-stat span{font-size:13px;color:var(--muted)}

/* ============ 内容卡片 / CMS 列表 ============ */
.cms-card{height:100%;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-sm);padding:24px;transition:var(--ease)}
.cms-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#CFE0F0}
.cms-card-title{font-size:18px;line-height:1.5;margin:14px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-card-title a{color:var(--ink)}
.cms-card-title a:hover{color:var(--brand)}
.cms-card-desc{font-size:14.8px;line-height:1.75;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-card-foot{margin-top:auto;padding-top:20px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.ui-empty{background:var(--brand-light);border:1px dashed #BBD6EE;border-radius:var(--r-card);padding:56px 24px;text-align:center}
.ui-empty .ui-icon-box{margin:0 auto 18px;background:#fff}
.ui-empty h3{font-size:18px;margin-bottom:8px}
.ui-empty p{font-size:14.5px;color:var(--muted);margin-bottom:20px}

/* ============ 方案 ============ */
.ui-price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
.ui-price{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-sm);padding:32px 26px;display:flex;flex-direction:column;transition:var(--ease)}
.ui-price:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.ui-price--hot{border-color:var(--brand);box-shadow:var(--shadow-lg);transform:translateY(-10px)}
.ui-price--hot:hover{transform:translateY(-13px)}
.ui-price-tag{position:absolute;top:-13px;left:26px;background:var(--accent);color:#fff;font-size:12.5px;font-weight:700;padding:4px 12px;border-radius:999px;letter-spacing:.4px}
.ui-price-name{font-size:16px;font-weight:600;color:var(--ink)}
.ui-price-num{font-size:34px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums;margin:14px 0 4px;line-height:1.1}
.ui-price-num small{font-size:14px;font-weight:400;color:var(--muted);margin-left:6px}
.ui-price-note{font-size:13.5px;color:var(--muted);padding-bottom:20px;border-bottom:1px solid var(--line);margin-bottom:18px}
.ui-price-list{display:flex;flex-direction:column;gap:4px;margin-bottom:26px}
.ui-price-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.9;color:var(--text)}
.ui-price-list svg{color:var(--brand);flex:none;margin-top:6px}
.ui-price .ui-btn{margin-top:auto;width:100%}

/* ============ FAQ ============ */
.ui-faq{max-width:820px;margin:0 auto}
.ui-faq .accordion-item{border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden;background:#fff;box-shadow:var(--shadow-sm)}
.ui-faq .accordion-button{font-size:16.5px;font-weight:600;color:var(--ink);padding:20px 22px;background:#fff;box-shadow:none;line-height:1.6}
.ui-faq .accordion-button:not(.collapsed){background:var(--brand-light);color:var(--brand-dark);box-shadow:inset 3px 0 0 var(--brand)}
.ui-faq .accordion-button:focus{box-shadow:0 0 0 3px rgba(31,111,178,.2)}
.ui-faq .accordion-button::after{content:"";width:10px;height:10px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);background-image:none;transform:rotate(45deg);transition:transform var(--ease),border-color var(--ease);margin-left:auto;flex:none;position:relative;top:-3px}
.ui-faq .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);border-color:var(--brand);top:1px}
.ui-faq .accordion-body{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--text)}

/* ============ 底部 CTA ============ */
.site-cta{background:var(--brand-light);border-radius:20px;padding:46px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;position:relative;overflow:hidden}
.site-cta::after{content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;background:rgba(31,111,178,.08)}
.site-cta-text{position:relative;z-index:1;max-width:640px}
.site-cta-text h2{font-size:clamp(22px,2.6vw,28px);line-height:1.35}
.site-cta-text p{margin-top:10px;font-size:15px;color:var(--text)}
.site-cta .ui-btn{position:relative;z-index:1}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-footer);color:rgba(255,255,255,.78);margin-top:0;padding-top:64px}
.site-footer h3{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px;letter-spacing:.3px}
.site-footer a{color:rgba(255,255,255,.78)}
.site-footer a:hover{color:#fff}
.site-footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;margin-bottom:16px}
.site-footer-brand .site-logo-mark{background:rgba(255,255,255,.14)}
.site-footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:340px}
.site-footer-links{display:flex;flex-direction:column;gap:10px;font-size:14.5px}
.site-footer-form{margin-top:16px}
.site-footer-form label{display:block;font-size:14px;color:rgba(255,255,255,.85);margin-bottom:8px}
.site-footer-input{width:100%;height:46px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:#fff;padding:0 14px;font-size:14.5px;transition:var(--ease)}
.site-footer-input::placeholder{color:rgba(255,255,255,.42)}
.site-footer-input:focus{outline:none;border-color:var(--brand);background:rgba(255,255,255,.1);box-shadow:0 0 0 3px rgba(31,111,178,.35)}
.site-footer-submit{margin-top:12px;width:100%}
.site-footer-hint{font-size:12.5px;color:rgba(255,255,255,.45);margin-top:10px;line-height:1.7}
.site-footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:52px;padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13.5px;color:rgba(255,255,255,.5)}
.site-footer-bottom-links{display:flex;flex-wrap:wrap;gap:18px}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .ui-scene{gap:40px}
}
@media (max-width:991.98px){
  .site-hero{padding:44px 0 64px}
  .site-section{padding:64px 0}
  .site-stats{grid-template-columns:repeat(2,1fr);gap:24px 0;padding:24px 0}
  .site-stat:nth-child(2){border-right:0}
  .site-stat{padding:0 22px}
  .ui-bento{grid-template-columns:1fr}
  .ui-bento-main img{aspect-ratio:16/9}
  .ui-scene{grid-template-columns:1fr;gap:26px}
  .ui-scene--reverse .ui-scene-media{order:-1}
  .ui-price-grid{grid-template-columns:1fr;gap:20px}
  .ui-price--hot{transform:none}
  .ui-price--hot:hover{transform:translateY(-3px)}
  .site-cta{flex-direction:column;align-items:flex-start;padding:36px 26px;text-align:left}
  .site-cta .ui-btn{width:100%}
  .site-cta::after{display:none}
  .ui-case-stats{gap:24px}
}
@media (max-width:767.98px){
  .site-header-top-inner{height:64px;gap:12px}
  .site-logo{font-size:16.5px}
  .site-logo-mark{width:32px;height:32px;border-radius:10px}
  .ui-tabs{height:50px}
  .site-hero-title{font-size:28px;line-height:1.36}
  .site-hero-sub{font-size:15.5px}
  .site-hero-actions .ui-btn{width:100%}
  .site-hero-points{gap:8px 18px}
  .ui-section-head{margin-bottom:28px}
  .ui-bento-main-body,.ui-bento-item,.ui-price,.cms-card,.ui-case-body{padding:22px}
  .ui-scene + .ui-scene{margin-top:52px}
  .ui-scene-body h3{font-size:20px}
  .ui-faq .accordion-button{font-size:15.5px;padding:17px 18px}
  .ui-faq .accordion-body{padding:0 18px 18px;font-size:14.5px}
  .site-footer{padding-top:48px}
  .site-footer-desc{max-width:100%}
}
@media (max-width:575.98px){
  .site-stats{grid-template-columns:1fr;gap:20px 0;padding:22px 0}
  .site-stat{border-right:0;border-bottom:1px solid var(--line);padding:0 22px 20px}
  .site-stat:last-child{border-bottom:0;padding-bottom:0}
  .ui-case-stats{flex-direction:column;gap:16px}
}

/* roulang page: article */
:root{
  --brand:#1F6FB2;
  --brand-dark:#17578E;
  --brand-light:#EAF3FB;
  --accent:#E2793C;
  --accent-light:#FDF1E7;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --border:#E4ECF3;
  --ink:#12242F;
  --text:#55656F;
  --muted:#7C8B95;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(16,42,67,.06), 0 8px 24px -12px rgba(16,42,67,.18);
  --sh-2:0 2px 6px rgba(16,42,67,.08), 0 18px 40px -18px rgba(16,42,67,.26);
  --ease:cubic-bezier(.2,.7,.3,1);
  --wide:1200px;
}
*,*::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",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:600;line-height:1.35;}
p{margin:0 0 1em;}
a{color:var(--brand);text-decoration:none;transition:color .25s var(--ease);}
a:hover{color:var(--brand-dark);}
img{max-width:100%;height:auto;display:block;}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;}
ul,ol{margin:0;padding:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 3px rgba(31,111,178,.28);border-radius:8px;}
.num{font-variant-numeric:tabular-nums;}
.container{width:100%;max-width:var(--wide);margin:0 auto;padding:0 24px;}
.ui-icon{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;flex:none;}
.ui-icon-sm{width:20px;height:20px;}

/* ---------- 双层导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--border);transition:box-shadow .25s var(--ease);}
.site-header.is-scrolled{box-shadow:0 10px 28px -20px rgba(16,42,67,.55);}
.site-header-top{display:flex;align-items:center;gap:24px;height:72px;}
.site-brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-size:19px;font-weight:700;letter-spacing:.2px;flex:none;}
.site-brand:hover{color:var(--ink);}
.site-logo-mark{
  width:38px;height:38px;border-radius:11px;color:#fff;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#2C89CE,#17578E);
  box-shadow:0 8px 18px -10px rgba(31,111,178,.95);
}
.site-search{
  flex:1 1 auto;max-width:440px;display:flex;align-items:center;height:40px;padding:0 4px 0 14px;
  background:#F2F6FA;border:1px solid var(--border);border-radius:var(--r-btn);
  transition:border-color .25s var(--ease),background .25s var(--ease),box-shadow .25s var(--ease);
}
.site-search:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(31,111,178,.16);}
.site-search input{flex:1;min-width:0;border:0;background:transparent;height:36px;font-size:14px;color:var(--ink);outline:none;}
.site-search input::placeholder{color:#93A3B0;}
.site-search button{width:34px;height:32px;border:0;border-radius:8px;background:var(--brand);color:#fff;display:inline-flex;align-items:center;justify-content:center;transition:background .25s var(--ease);}
.site-search button:hover{background:var(--brand-dark);}
.site-header-actions{display:flex;align-items:center;gap:18px;margin-left:auto;flex:none;}
.site-menu-btn{
  display:none;width:44px;height:44px;border:1px solid var(--border);border-radius:var(--r-btn);
  background:#fff;color:var(--ink);align-items:center;justify-content:center;
}
.site-menu-btn:hover{border-color:var(--brand);color:var(--brand);}
.site-tabs-wrap{border-top:1px solid var(--border);}
.ui-tabs{display:flex;gap:8px;overflow-x:auto;padding:8px 0;scrollbar-width:none;-ms-overflow-style:none;}
.ui-tabs::-webkit-scrollbar{display:none;}
.ui-tab{
  flex:none;display:inline-flex;align-items:center;height:40px;padding:0 18px;border-radius:999px;
  font-size:15px;color:var(--text);border:1px solid transparent;transition:all .25s var(--ease);
}
.ui-tab:hover{color:var(--brand);background:var(--brand-light);}
.ui-tab.is-active{background:var(--brand);color:#fff;border-color:var(--brand);box-shadow:0 12px 22px -14px rgba(31,111,178,1);}

/* ---------- 按钮 / 徽章 / 文字链 ---------- */
.ui-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:12px 24px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;
  transition:all .25s var(--ease);white-space:nowrap;
}
.ui-btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 24px -16px rgba(31,111,178,1);}
.ui-btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.ui-btn-primary:active{transform:translateY(0) scale(.98);}
.ui-btn-ghost{background:#fff;color:var(--ink);border-color:#D7E2EC;}
.ui-btn-ghost:hover{border-color:var(--brand);color:var(--brand);}
.ui-btn-ghost:active{transform:scale(.98);}
.ui-btn-sm{min-height:40px;padding:8px 18px;font-size:14px;}
.ui-textlink{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px;}
.ui-textlink svg{transition:transform .25s var(--ease);}
.ui-textlink:hover svg{transform:translateX(4px);}
.ui-badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
  background:var(--brand-light);color:var(--brand-dark);font-size:12px;font-weight:700;letter-spacing:.3px;
}
.ui-badge-accent{background:var(--accent-light);color:#B65C24;}

/* ---------- 面包屑 ---------- */
.ui-breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:20px 0 0;font-size:13px;color:var(--muted);}
.ui-breadcrumb a{color:var(--muted);}
.ui-breadcrumb a:hover{color:var(--brand);}
.ui-breadcrumb .sep{color:#C7D6E2;}
.ui-breadcrumb .current{color:var(--brand);font-weight:600;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头 ---------- */
.article-head{padding:24px 0 30px;border-bottom:1px solid var(--border);}
.article-title{font-size:clamp(28px,3.4vw,40px);line-height:1.3;margin:16px 0 0;letter-spacing:-.3px;max-width:900px;}
.article-lead{margin:18px 0 0;font-size:17px;line-height:1.8;color:var(--text);max-width:840px;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:22px;font-size:13px;color:var(--muted);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C7D6E2;}
.article-share{margin-left:auto;display:flex;gap:8px;}
.article-share button{
  width:38px;height:38px;border-radius:var(--r-btn);border:1px solid var(--border);background:#fff;color:var(--muted);
  display:inline-flex;align-items:center;justify-content:center;transition:all .25s var(--ease);
}
.article-share button:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-2px);}
.article-share button:active{transform:translateY(0) scale(.96);}

/* ---------- 正文排版 ---------- */
.article-layout{padding:40px 0 8px;}
.article-body{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:36px 40px;box-shadow:var(--sh-1);}
.article-content{font-size:17px;line-height:1.78;color:var(--text);max-width:760px;}
.article-content p{margin:0 0 1.2em;}
.article-content h2{font-size:24px;color:var(--ink);margin:40px 0 16px;padding-left:14px;position:relative;line-height:1.45;}
.article-content h2:first-child{margin-top:0;}
.article-content h2::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:2px;background:var(--brand);}
.article-content h3{font-size:19px;color:var(--ink);margin:28px 0 12px;}
.article-content h4{font-size:17px;color:var(--ink);margin:22px 0 10px;}
.article-content ul{list-style:none;padding-left:0;margin:0 0 1.2em;}
.article-content ol{padding-left:22px;margin:0 0 1.2em;}
.article-content ul li{position:relative;padding-left:20px;margin-bottom:10px;}
.article-content ul li::before{content:"";position:absolute;left:2px;top:11px;width:6px;height:6px;border-radius:50%;background:var(--brand);}
.article-content ol li{margin-bottom:10px;}
.article-content img{border-radius:var(--r-img);margin:20px 0 8px;background:#EEF3F8;width:100%;}
.article-content figure{margin:24px 0;}
.article-content figcaption{font-size:13px;color:var(--muted);text-align:center;line-height:1.7;}
.article-content blockquote{
  margin:24px 0;padding:18px 22px;background:var(--brand-light);border-left:4px solid var(--brand);
  border-radius:0 var(--r-img) var(--r-img) 0;color:var(--ink);font-size:16px;
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.article-content table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;display:block;overflow-x:auto;white-space:nowrap;}
.article-content th,.article-content td{border:1px solid var(--border);padding:10px 14px;text-align:left;}
.article-content thead th{background:var(--brand-light);color:var(--ink);font-weight:600;}
.article-content tbody tr:nth-child(even){background:#F8FBFE;}
.article-content code{background:#EEF3F8;border-radius:6px;padding:2px 6px;font-size:14px;color:var(--brand-dark);}
.article-content hr{border:0;border-top:1px solid var(--border);margin:32px 0;}

/* ---------- 空态 ---------- */
.ui-empty{
  background:var(--brand-light);border:1px dashed #C6DDF1;border-radius:var(--r-card);
  padding:48px 24px;text-align:center;color:var(--text);
}
.ui-empty .ui-icon{width:34px;height:34px;color:var(--brand);margin:0 auto 14px;}
.ui-empty h2{font-size:20px;margin-bottom:8px;}
.ui-empty p{font-size:15px;color:var(--text);margin-bottom:20px;}

/* ---------- 文末 ---------- */
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;padding-top:26px;border-top:1px solid var(--border);}
.tag-pill{
  display:inline-flex;align-items:center;height:34px;padding:0 14px;border-radius:999px;
  background:#F2F6FA;border:1px solid var(--border);color:var(--text);font-size:14px;transition:all .25s var(--ease);
}
.tag-pill:hover{background:var(--brand-light);border-color:#C6DDF1;color:var(--brand-dark);}
.article-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px;}
.article-nav a{
  display:block;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:18px 20px;
  color:var(--ink);box-shadow:var(--sh-1);transition:all .25s var(--ease);
}
.article-nav a:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#C6DDF1;color:var(--brand-dark);}
.article-nav span{display:block;font-size:12px;color:var(--muted);margin-bottom:6px;font-weight:600;}
.article-nav strong{font-size:15px;font-weight:600;line-height:1.55;display:block;}
.article-back{margin-top:22px;}

/* ---------- 侧栏 ---------- */
.article-side{display:flex;flex-direction:column;gap:20px;}
.side-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--sh-1);}
.side-card h2{font-size:16px;display:flex;align-items:center;gap:8px;margin-bottom:14px;}
.side-card h2 .ui-icon{color:var(--brand);}
.side-toc{position:sticky;top:150px;}
.side-list{list-style:none;display:flex;flex-direction:column;gap:4px;}
.side-list a{
  display:flex;align-items:flex-start;gap:10px;padding:10px 12px;border-radius:var(--r-btn);
  color:var(--text);font-size:14px;line-height:1.6;transition:all .25s var(--ease);
}
.side-list a:hover{background:var(--brand-light);color:var(--brand-dark);}
.side-list .idx{
  flex:none;width:22px;height:22px;border-radius:7px;background:#F2F6FA;color:var(--brand);
  font-size:12px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;margin-top:2px;
}
.side-list a:hover .idx{background:var(--brand);color:#fff;}
.side-cta{background:linear-gradient(150deg,#1F6FB2,#17578E);border:0;color:rgba(255,255,255,.86);}
.side-cta h2{color:#fff;}
.side-cta h2 .ui-icon{color:#fff;}
.side-cta p{font-size:14px;line-height:1.75;margin-bottom:16px;}
.side-cta .ui-btn{width:100%;background:#fff;color:var(--brand-dark);}
.side-cta .ui-btn:hover{background:#F2F6FA;color:var(--brand-dark);}

/* ---------- 板块与卡片 ---------- */
.ui-section{padding:64px 0 0;}
.ui-section-head{max-width:720px;margin-bottom:32px;}
.ui-section-head h2{font-size:28px;line-height:1.4;}
.ui-section-head p{margin:12px 0 0;font-size:15px;color:var(--muted);}
.ui-card{
  display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--border);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.ui-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#C6DDF1;}
.ui-card-media{aspect-ratio:16/9;overflow:hidden;background:#EEF3F8;}
.ui-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
.ui-card:hover .ui-card-media img{transform:scale(1.03);}
.ui-card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.ui-card-title{font-size:19px;font-weight:600;color:var(--ink);line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.ui-card-text{font-size:15px;line-height:1.7;color:var(--text);margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.ui-card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted);}

/* ---------- FAQ ---------- */
.ui-faq{max-width:820px;margin:0 auto;}
.ui-faq .accordion-item{background:#fff;border:1px solid var(--border);border-radius:14px;margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);}
.ui-faq .accordion-button{
  background:#fff;color:var(--ink);font-size:17px;font-weight:600;line-height:1.55;padding:18px 22px;
  box-shadow:none;gap:16px;
}
.ui-faq .accordion-button:not(.collapsed){background:var(--brand-light);color:var(--brand-dark);box-shadow:inset 3px 0 0 0 var(--brand);}
.ui-faq .accordion-button:focus{box-shadow:0 0 0 3px rgba(31,111,178,.18);}
.ui-faq .accordion-button::after{
  background-image:none;content:"";width:11px;height:11px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;
  transform:rotate(45deg);transition:transform .25s var(--ease);margin-left:auto;
}
.ui-faq .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);}
.ui-faq .accordion-body{padding:4px 22px 20px;font-size:15px;line-height:1.8;color:var(--text);}

/* ---------- 底部 CTA ---------- */
.ui-cta{
  position:relative;overflow:hidden;display:flex;align-items:center;justify-content:space-between;gap:28px;
  background:var(--brand-light);border:1px solid #D6E7F6;border-radius:20px;padding:40px 44px;
}
.ui-cta::after{
  content:"";position:absolute;right:-60px;top:-70px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,111,178,.16),rgba(31,111,178,0) 70%);
}
.ui-cta h2{font-size:26px;line-height:1.4;position:relative;}
.ui-cta p{margin:12px 0 0;font-size:15px;color:var(--text);max-width:620px;position:relative;}
.ui-cta .ui-btn{position:relative;flex:none;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0E2C3F;color:rgba(255,255,255,.8);margin-top:88px;padding:72px 0 28px;font-size:14px;}
.site-footer h3{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.2px;}
.site-footer a{color:rgba(255,255,255,.72);}
.site-footer a:hover{color:#fff;}
.site-footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:14px;}
.site-footer-brand .site-logo-mark{width:34px;height:34px;border-radius:10px;}
.site-footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);margin:0;max-width:340px;}
.site-footer-links{display:flex;flex-direction:column;gap:10px;}
.site-footer-links a{font-size:14px;}
.site-footer-form{display:flex;flex-direction:column;gap:10px;}
.site-footer-form label{font-size:14px;color:rgba(255,255,255,.86);}
.site-footer-input{
  width:100%;height:46px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);color:#fff;padding:0 14px;font-size:14px;outline:none;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.site-footer-input::placeholder{color:rgba(255,255,255,.45);}
.site-footer-input:focus{border-color:#63A9DD;box-shadow:0 0 0 3px rgba(99,169,221,.25);}
.site-footer-submit{width:100%;}
.site-footer-hint{font-size:12px;color:rgba(255,255,255,.45);margin:0;line-height:1.7;}
.site-footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}
.site-footer-bottom-links{display:flex;gap:18px;}

/* ---------- 移动端抽屉 ---------- */
.ui-drawer{background:#fff;}
.ui-drawer .offcanvas-header{border-bottom:1px solid var(--border);padding:18px 20px;}
.ui-drawer .offcanvas-body{padding:18px 20px 32px;}
.ui-drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:22px;}
.ui-drawer-nav a{
  display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:var(--r-btn);
  color:var(--ink);font-size:16px;font-weight:500;border-left:3px solid transparent;
}
.ui-drawer-nav a:hover{background:var(--brand-light);color:var(--brand-dark);}
.ui-drawer-nav a.is-active{border-left-color:var(--brand);color:var(--brand-dark);background:var(--brand-light);font-weight:600;}
.ui-drawer-search{display:flex;align-items:center;height:46px;border:1px solid var(--border);border-radius:var(--r-btn);padding:0 6px 0 14px;margin-bottom:18px;}
.ui-drawer-search input{flex:1;min-width:0;border:0;outline:none;height:42px;font-size:14px;color:var(--ink);}
.ui-drawer-actions{display:flex;flex-direction:column;gap:12px;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .article-body{padding:32px 30px;}
  .side-toc{top:132px;}
}
@media (max-width:991.98px){
  .site-search{display:none;}
  .site-header-actions .ui-textlink{display:none;}
  .site-menu-btn{display:inline-flex;}
  .article-body{padding:28px 24px;}
  .side-toc{position:static;}
  .article-layout{padding-top:32px;}
  .ui-section{padding-top:56px;}
}
@media (max-width:767.98px){
  .container{padding:0 20px;}
  .site-header-top{height:64px;gap:12px;}
  .site-brand{font-size:17px;}
  .site-header-actions .ui-btn{display:none;}
  .article-title{font-size:26px;}
  .article-lead{font-size:16px;}
  .article-share{margin-left:0;width:100%;}
  .article-nav{grid-template-columns:1fr;}
  .ui-section-head h2{font-size:23px;}
  .ui-cta{flex-direction:column;align-items:flex-start;padding:28px 24px;}
  .ui-cta h2{font-size:22px;}
  .ui-cta .ui-btn{width:100%;}
  .site-footer{padding:56px 0 24px;margin-top:64px;}
  .site-footer-bottom{flex-direction:column;align-items:flex-start;}
  .article-content{font-size:16px;}
}
@media (max-width:575.98px){
  .ui-tab{height:38px;padding:0 14px;font-size:14px;}
  .article-content h2{font-size:21px;}
  .ui-faq .accordion-button{font-size:16px;padding:16px 18px;}
}

/* roulang page: category1 */
:root{
  --brand:#1F6FB2;
  --brand-dark:#17578E;
  --brand-light:#EAF3FB;
  --accent:#E2793C;
  --accent-light:#FDF1E7;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --line:#E4ECF3;
  --ink:#12242F;
  --text:#55656F;
  --muted:#7C8B95;
  --footer:#0E2C3F;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(16,42,67,.06),0 8px 24px -12px rgba(16,42,67,.18);
  --sh-2:0 2px 6px rgba(16,42,67,.08),0 18px 40px -18px rgba(16,42,67,.26);
  --t:.25s cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;background:#EEF3F8;}
a{color:var(--brand);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--brand-dark);}
button,input{font-family:inherit;}
h1,h2,h3,h4{color:var(--ink);font-weight:600;margin:0;line-height:1.35;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.ui-num{font-variant-numeric:tabular-nums;}
.container{width:100%;max-width:1200px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto;}
.ui-icon{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;flex:none;}
.ui-icon-sm{width:20px;height:20px;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 3px rgba(31,111,178,.28);border-radius:6px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t);
}
.site-header.is-scrolled{box-shadow:0 6px 24px -14px rgba(16,42,67,.35);}
.site-header-top-inner{display:flex;align-items:center;gap:20px;min-height:64px;}
.site-logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:18px;letter-spacing:-.02em;flex:none;}
.site-logo:hover{color:var(--brand-dark);}
.site-logo-mark{
  width:36px;height:36px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);color:#fff;
}
.site-logo-mark .ui-icon{stroke-width:1.7;}
.site-search{flex:1 1 auto;max-width:420px;display:flex;align-items:center;background:#F3F7FB;border:1px solid var(--line);border-radius:var(--r-btn);height:40px;padding:0 6px 0 14px;transition:border-color var(--t),background var(--t);}
.site-search:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(31,111,178,.16);}
.site-search-input{flex:1;border:0;background:transparent;height:100%;font-size:14px;color:var(--ink);outline:none;}
.site-search-input::placeholder{color:#93A3B0;}
.site-search-btn{width:34px;height:30px;border:0;border-radius:8px;background:var(--brand);color:#fff;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:background var(--t);}
.site-search-btn:hover{background:var(--brand-dark);}
.site-header-actions{display:flex;align-items:center;gap:16px;margin-left:auto;flex:none;}
.site-nav-toggle{
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;color:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:var(--t);
}
.site-nav-toggle:hover{border-color:var(--brand);color:var(--brand);}
.site-header-tabs{border-top:1px solid var(--line);background:#fff;}
.site-tabs-wrap{position:relative;padding-top:6px;padding-bottom:6px;}
.site-tabs-wrap::before,.site-tabs-wrap::after{content:"";position:absolute;top:0;bottom:0;width:24px;pointer-events:none;z-index:2;}
.site-tabs-wrap::before{left:0;background:linear-gradient(90deg,#fff 30%,rgba(255,255,255,0));}
.site-tabs-wrap::after{right:0;background:linear-gradient(270deg,#fff 30%,rgba(255,255,255,0));}
.ui-tabs{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
.ui-tabs::-webkit-scrollbar{display:none;}
.ui-tab{
  flex:none;display:inline-flex;align-items:center;height:40px;padding:0 18px;border-radius:999px;
  font-size:15px;color:var(--text);white-space:nowrap;transition:var(--t);
}
.ui-tab:hover{color:var(--brand);background:var(--brand-light);}
.ui-tab.is-active{background:var(--brand);color:#fff;font-weight:600;}
.ui-tab.is-active:hover{background:var(--brand-dark);color:#fff;}
.site-mobile-panel{background:#fff;border-top:1px solid var(--line);padding:18px 0 24px;}
.site-mobile-nav{display:flex;flex-direction:column;margin:14px 0 18px;}
.site-mobile-nav a{
  display:flex;align-items:center;min-height:48px;padding:0 4px;color:var(--ink);font-size:15px;
  border-bottom:1px solid var(--line);
}
.site-mobile-nav a.is-active{color:var(--brand);font-weight:600;box-shadow:inset 3px 0 0 var(--brand);padding-left:14px;}

/* ---------- buttons / badges ---------- */
.ui-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 24px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;transition:var(--t);white-space:nowrap;
}
.ui-btn .ui-icon{width:18px;height:18px;}
.ui-btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px -12px rgba(31,111,178,.9);}
.ui-btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);}
.ui-btn-primary:active{transform:translateY(0) scale(.98);}
.ui-btn-ghost{background:#fff;color:var(--ink);border-color:#D7E2EC;}
.ui-btn-ghost:hover{border-color:var(--brand);color:var(--brand);}
.ui-btn-ghost:active{transform:scale(.98);}
.ui-btn-sm{min-height:38px;padding:8px 16px;font-size:14px;}
.ui-btn[disabled],.ui-btn.is-disabled{opacity:.55;pointer-events:none;transform:none;}
.ui-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);}
.ui-link .ui-icon{width:18px;height:18px;transition:transform var(--t);}
.ui-link:hover .ui-icon{transform:translateX(4px);}
.ui-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;background:var(--brand-light);color:var(--brand-dark);
  font-size:12px;font-weight:700;letter-spacing:.02em;
}
.ui-badge-accent{background:var(--accent-light);color:#B85C24;}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;
  padding:72px 0 64px;
  background-image:linear-gradient(100deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.88) 46%,rgba(255,255,255,.35) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.cat-hero::after{
  content:"";position:absolute;right:-60px;top:-60px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,111,178,.10) 0%,rgba(31,111,178,0) 70%);
  pointer-events:none;
}
.ui-breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px;}
.ui-breadcrumb a{color:var(--muted);}
.ui-breadcrumb a:hover{color:var(--brand);}
.ui-breadcrumb span.sep{color:#C3D2DE;}
.ui-breadcrumb .current{color:var(--brand);font-weight:600;}
.cat-hero h1{font-size:40px;line-height:1.25;font-weight:700;margin:16px 0 18px;max-width:760px;}
.cat-hero-lead{font-size:17px;line-height:1.85;color:var(--text);max-width:700px;}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.cat-hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;
  margin-top:44px;padding-top:28px;border-top:1px solid rgba(31,111,178,.14);
}
.cat-stat-num{font-size:30px;font-weight:600;color:var(--brand-dark);font-variant-numeric:tabular-nums;line-height:1.2;}
.cat-stat-num em{font-style:normal;font-size:16px;color:var(--muted);margin-left:4px;font-weight:500;}
.cat-stat-label{font-size:13.5px;color:var(--muted);margin-top:4px;line-height:1.6;}

/* ---------- layout ---------- */
.cat-layout{padding:64px 0 80px;}
.cat-grid{display:grid;grid-template-columns:240px minmax(0,1fr);gap:40px;align-items:start;}
.cat-side{position:sticky;top:128px;}
.cat-side-inner{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:20px 18px;}
.cat-side-title{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.08em;margin-bottom:12px;}
.cat-side-link{
  display:block;padding:10px 12px;border-radius:10px;font-size:14.5px;color:var(--text);
  border-left:3px solid transparent;transition:var(--t);
}
.cat-side-link:hover{background:var(--brand-light);color:var(--brand-dark);}
.cat-side-link.is-active{background:var(--brand-light);color:var(--brand-dark);font-weight:600;border-left-color:var(--brand);}
.cat-side-cta{margin-top:16px;padding-top:16px;border-top:1px solid var(--line);}
.cat-side-cta p{font-size:13.5px;color:var(--muted);line-height:1.7;margin-bottom:12px;}

.cat-block{padding-bottom:40px;margin-bottom:40px;border-bottom:1px dashed var(--line);scroll-margin-top:140px;}
.cat-block:last-child{border-bottom:0;margin-bottom:0;}
.cat-block-head{max-width:720px;}
.cat-block h2{font-size:30px;line-height:1.35;margin:14px 0 12px;}
.cat-block-desc{font-size:15.5px;line-height:1.8;color:var(--text);}
.cat-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:28px;}
.cat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:26px;display:flex;flex-direction:column;gap:12px;transition:var(--t);
}
.cat-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}
.cat-cards .cat-card:nth-child(even){margin-top:28px;}
.cat-card-icon{
  width:44px;height:44px;border-radius:12px;background:var(--brand-light);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
}
.cat-card-icon.is-accent{background:var(--accent-light);color:#C4682F;}
.cat-card h3{font-size:19px;line-height:1.45;}
.cat-card p{font-size:15px;line-height:1.8;color:var(--text);}
.cat-card-list{display:flex;flex-direction:column;gap:8px;margin-top:2px;}
.cat-card-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.7;color:var(--text);}
.cat-card-list .ui-icon{width:18px;height:18px;color:var(--brand);margin-top:4px;}
.cat-card-foot{margin-top:auto;padding-top:6px;}

.cat-figure{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1);background:#fff;}
.cat-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;}
.cat-figure figcaption{padding:12px 18px;font-size:13px;color:var(--muted);background:#fff;}

/* ---------- steps ---------- */
.cat-steps{padding:72px 0;background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:36px;}
.section-head h2{font-size:30px;margin:14px 0 12px;}
.section-head p{font-size:15.5px;color:var(--text);line-height:1.8;}
.cat-timeline{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:20px;position:relative;}
.cat-timeline::before{content:"";position:absolute;left:0;right:0;top:11px;height:1px;background:var(--line);}
.cat-step{position:relative;padding-top:34px;}
.cat-step::before{
  content:"";position:absolute;top:5px;left:0;width:12px;height:12px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 0 5px rgba(31,111,178,.14);
}
.cat-step-no{font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.08em;font-variant-numeric:tabular-nums;}
.cat-step h3{font-size:17px;margin:8px 0 8px;line-height:1.5;}
.cat-step p{font-size:14.5px;line-height:1.75;color:var(--text);}

/* ---------- faq ---------- */
.cat-faq{padding:72px 0;}
.cat-faq-inner{max-width:820px;margin:0 auto;}
.accordion-item{
  border:1px solid var(--line)!important;border-radius:12px!important;margin-bottom:12px;overflow:hidden;
  background:#fff;box-shadow:var(--sh-1);
}
.accordion-button{
  font-size:16.5px;font-weight:600;color:var(--ink);background:#fff;padding:18px 22px;
  box-shadow:none!important;
}
.accordion-button:not(.collapsed){background:var(--brand-light);color:var(--brand-dark);}
.accordion-button::after{
  width:18px;height:18px;background-size:18px;
  filter:invert(36%) sepia(43%) saturate(1480%) hue-rotate(178deg) brightness(90%) contrast(88%);
}
.accordion-body{padding:4px 22px 22px;font-size:15px;line-height:1.85;color:var(--text);}

/* ---------- related ---------- */
.cat-related{padding:0 0 72px;}
.cat-related-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:32px;}
.cat-related-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:28px;display:flex;flex-direction:column;gap:14px;transition:var(--t);height:100%;
}
.cat-related-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}
.cat-related-card h3{font-size:20px;}
.cat-related-card p{font-size:15px;line-height:1.8;color:var(--text);}
.cat-related-meta{display:flex;gap:10px;flex-wrap:wrap;}

/* ---------- cta band ---------- */
.cat-cta{background:var(--brand-light);border-top:1px solid rgba(31,111,178,.14);border-bottom:1px solid rgba(31,111,178,.14);padding:52px 0;position:relative;overflow:hidden;}
.cat-cta::after{
  content:"";position:absolute;right:-40px;bottom:-80px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(226,121,60,.16) 0%,rgba(226,121,60,0) 70%);
}
.cat-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;position:relative;z-index:1;}
.cat-cta h2{font-size:26px;margin-bottom:8px;}
.cat-cta p{font-size:15px;color:var(--text);max-width:620px;}
.cat-cta-actions{display:flex;gap:12px;flex:none;}

/* ---------- footer ---------- */
.site-footer{background:var(--footer);color:rgba(255,255,255,.8);padding:64px 0 28px;margin-top:0;}
.site-footer h3{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;letter-spacing:.02em;}
.site-footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:16px;}
.site-footer-brand .site-logo-mark{background:rgba(255,255,255,.12);}
.site-footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:360px;}
.site-footer-links{display:flex;flex-direction:column;gap:12px;}
.site-footer-links a{color:rgba(255,255,255,.68);font-size:14.5px;}
.site-footer-links a:hover{color:#fff;}
.site-footer-form{display:flex;flex-direction:column;gap:10px;}
.site-footer-form label{font-size:14px;color:rgba(255,255,255,.85);}
.site-footer-input{
  height:46px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.06);color:#fff;padding:0 14px;font-size:14.5px;outline:none;transition:var(--t);
}
.site-footer-input::placeholder{color:rgba(255,255,255,.4);}
.site-footer-input:focus{border-color:#6FB1E4;background:rgba(255,255,255,.1);box-shadow:0 0 0 3px rgba(111,177,228,.25);}
.site-footer-submit{width:100%;}
.site-footer-hint{font-size:12.5px;color:rgba(255,255,255,.45);line-height:1.7;}
.site-footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:rgba(255,255,255,.5);
}
.site-footer-bottom-links{display:flex;gap:18px;}
.site-footer-bottom-links a{color:rgba(255,255,255,.6);}
.site-footer-bottom-links a:hover{color:#fff;}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .cat-hero h1{font-size:36px;}
}
@media (max-width:991.98px){
  .cat-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .cat-side{position:static;top:auto;}
  .cat-side-inner{display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:14px;}
  .cat-side-title{width:100%;margin-bottom:4px;}
  .cat-side-link{border-left:0;border:1px solid var(--line);border-radius:999px;padding:7px 14px;font-size:14px;}
  .cat-side-link.is-active{border-color:var(--brand);}
  .cat-side-cta{display:none;}
  .cat-hero{padding:56px 0 52px;background-image:linear-gradient(180deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.92) 60%,rgba(255,255,255,.6) 100%),url("/assets/images/backpic/back-1.webp");}
  .cat-hero h1{font-size:32px;}
  .cat-hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
  .cat-timeline{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
  .cat-timeline::before{display:none;}
  .cat-step{padding-top:26px;}
  .cat-cta-inner{flex-direction:column;align-items:flex-start;}
  .site-footer{padding-top:52px;}
}
@media (max-width:767.98px){
  body{font-size:15.5px;}
  .container{padding-left:20px;padding-right:20px;}
  .cat-hero{padding:44px 0 44px;}
  .cat-hero h1{font-size:28px;line-height:1.3;}
  .cat-hero-lead{font-size:15.5px;}
  .cat-layout{padding:48px 0 56px;}
  .cat-block{padding-bottom:32px;margin-bottom:32px;}
  .cat-block h2,.section-head h2{font-size:23px;}
  .cat-cards{grid-template-columns:minmax(0,1fr);gap:18px;}
  .cat-cards .cat-card:nth-child(even){margin-top:0;}
  .cat-cards .cat-card:nth-child(even){transform:none;}
  .cat-card{padding:22px;}
  .cat-steps,.cat-faq{padding:52px 0;}
  .cat-related-grid{grid-template-columns:minmax(0,1fr);gap:18px;}
  .cat-timeline{grid-template-columns:minmax(0,1fr);}
  .cat-cta{padding:44px 0;}
  .cat-cta h2{font-size:22px;}
  .cat-cta-actions{width:100%;flex-direction:column;}
  .cat-cta-actions .ui-btn{width:100%;}
  .site-header-actions .ui-btn{padding:9px 16px;font-size:14px;}
  .site-footer-bottom{flex-direction:column;align-items:flex-start;}
  .cat-hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cat-stat-num{font-size:26px;}
}
@media (max-width:575.98px){
  .site-logo{font-size:16px;}
  .site-header-actions .ui-btn span{display:none;}
  .cat-hero-stats{grid-template-columns:minmax(0,1fr);gap:14px;}
  .cat-hero-actions .ui-btn{width:100%;}
}

/* roulang page: category2 */
:root{
  --brand:#1F6FB2;
  --brand-dark:#17578E;
  --brand-light:#EAF3FB;
  --brand-50:#F2F8FD;
  --accent:#E2793C;
  --accent-light:#FDF1E7;
  --page:#F5F8FC;
  --card:#FFFFFF;
  --line:#E4ECF3;
  --ink:#12242F;
  --body:#55656F;
  --muted:#7C8B95;
  --foot:#0E2C3F;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(16,42,67,.06),0 8px 24px -12px rgba(16,42,67,.18);
  --sh-2:0 2px 6px rgba(16,42,67,.08),0 18px 40px -18px rgba(16,42,67,.26);
  --ease:.25s cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--page);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease);}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:600;color:var(--ink);line-height:1.35;letter-spacing:.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 3px rgba(31,111,178,.28);border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 22px -14px rgba(16,42,67,.35);}
.site-header-top-inner{
  display:flex;align-items:center;gap:20px;
  min-height:68px;
}
.site-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink);}
.site-logo:hover{color:var(--brand-dark);}
.site-logo-mark{
  width:38px;height:38px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#fff;flex:0 0 auto;
  box-shadow:0 6px 16px -8px rgba(23,87,142,.75);
}
.site-logo-text{font-size:19px;font-weight:700;letter-spacing:.4px;white-space:nowrap;}
.site-search{
  flex:1 1 auto;max-width:420px;
  display:flex;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-btn);
  height:40px;overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease);
}
.site-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,111,178,.16);}
.site-search-input{
  flex:1 1 auto;border:0;height:100%;padding:0 14px;font-size:14px;color:var(--ink);
  background:transparent;outline:none;
}
.site-search-input::placeholder{color:#93A3B0;}
.site-search-btn{
  border:0;height:100%;padding:0 18px;background:var(--brand-light);color:var(--brand-dark);
  font-size:14px;font-weight:600;cursor:pointer;transition:background-color var(--ease),color var(--ease);
}
.site-search-btn:hover{background:var(--brand);color:#fff;}
.site-header-actions{display:flex;align-items:center;gap:14px;margin-left:auto;flex:0 0 auto;}
.site-header-link{font-size:14px;color:var(--body);}
.site-header-link:hover{color:var(--brand-dark);}
.site-menu-btn{
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;color:var(--ink);display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:border-color var(--ease),color var(--ease),background-color var(--ease);
}
.site-menu-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-50);}
.site-header-tabs{border-top:1px solid var(--line);background:#fff;}
.ui-tabs{
  display:flex;align-items:center;gap:8px;
  height:52px;overflow-x:auto;scrollbar-width:none;
}
.ui-tabs::-webkit-scrollbar{display:none;}
.ui-tab{
  flex:0 0 auto;display:inline-flex;align-items:center;
  height:36px;padding:0 16px;border-radius:999px;
  font-size:15px;color:var(--body);white-space:nowrap;
  border:1px solid transparent;
}
.ui-tab:hover{color:var(--brand-dark);background:var(--brand-light);}
.ui-tab.is-active{background:var(--brand);color:#fff;font-weight:600;}
.ui-tab.is-active:hover{background:var(--brand-dark);color:#fff;}
.ui-icon{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.ui-icon-sm{width:20px;height:20px;}

/* 移动端抽屉 */
.offcanvas.site-menu{width:320px;border:0;}
.site-menu-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line);}
.site-menu-body{padding:18px 20px;}
.site-menu-list{display:flex;flex-direction:column;gap:4px;margin-top:16px;}
.site-menu-list a{
  display:flex;align-items:center;min-height:48px;padding:0 12px;border-radius:10px;
  font-size:15px;color:var(--ink);border-left:3px solid transparent;
}
.site-menu-list a:hover{background:var(--brand-50);color:var(--brand-dark);}
.site-menu-list a.is-active{border-left-color:var(--brand);background:var(--brand-light);color:var(--brand-dark);font-weight:600;}

/* ============ 按钮 / 徽章 ============ */
.ui-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  border:1px solid transparent;transition:all var(--ease);white-space:nowrap;
}
.ui-btn-sm{padding:9px 18px;font-size:14px;}
.ui-btn-primary{background:var(--brand);color:#fff;border-color:var(--brand);}
.ui-btn-primary:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px);}
.ui-btn-primary:active{transform:translateY(0) scale(.98);}
.ui-btn-ghost{background:#fff;color:var(--ink);border-color:#D7E2EC;}
.ui-btn-ghost:hover{border-color:var(--brand);color:var(--brand-dark);background:#fff;}
.ui-btn-light{background:#fff;color:var(--brand-dark);border-color:#fff;}
.ui-btn-light:hover{background:var(--brand-50);color:var(--brand-dark);transform:translateY(-1px);}
.ui-btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.65);}
.ui-btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}
.ui-btn:disabled{opacity:.5;pointer-events:none;transform:none;}
.ui-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;
  background:var(--brand-light);color:var(--brand-dark);
  font-size:12px;font-weight:700;letter-spacing:.3px;
}
.ui-badge-accent{background:var(--accent-light);color:#B85C22;}
.ui-link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);
}
.ui-link-arrow svg{transition:transform var(--ease);}
.ui-link-arrow:hover svg{transform:translateX(4px);}

/* ============ Hero ============ */
.cat-hero{
  position:relative;
  min-height:300px;
  display:flex;align-items:center;
  background-color:#123A5A;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  overflow:hidden;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,38,60,.90) 0%,rgba(23,87,142,.78) 55%,rgba(31,111,178,.52) 100%);
}
.cat-hero-inner{position:relative;z-index:2;padding:56px 0 60px;max-width:720px;}
.cat-hero .ui-badge{background:rgba(255,255,255,.16);color:#fff;}
.cat-hero h1{
  color:#fff;font-size:38px;line-height:1.3;margin:16px 0 18px;font-weight:700;
}
.cat-hero p{color:rgba(255,255,255,.88);font-size:16px;line-height:1.85;}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}

/* ============ 通用区块 ============ */
.ui-section{padding:88px 0;}
.ui-section-alt{background:#fff;}
.ui-section-head{max-width:760px;margin-bottom:40px;}
.ui-section-head h2{font-size:30px;margin-bottom:12px;}
.ui-section-head p{color:var(--body);font-size:15px;line-height:1.85;}
.ui-eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:1px;
  color:var(--brand);margin-bottom:12px;text-transform:uppercase;
}

/* ============ 对照卡 ============ */
.compare-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.compare-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:28px;transition:transform var(--ease),box-shadow var(--ease);
  display:flex;flex-direction:column;height:100%;
}
.compare-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.compare-card.is-focus{border-color:rgba(31,111,178,.45);box-shadow:0 1px 2px rgba(16,42,67,.06),0 20px 44px -20px rgba(23,87,142,.42);}
.compare-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:8px;}
.compare-card h3{font-size:20px;}
.compare-card > p{color:var(--body);font-size:15px;margin:8px 0 20px;}
.compare-rows{border-top:1px solid var(--line);margin-top:auto;}
.compare-row{
  display:flex;gap:16px;padding:12px 0;border-bottom:1px dashed var(--line);font-size:14px;
}
.compare-row:last-child{border-bottom:0;}
.compare-row dt{flex:0 0 88px;color:var(--muted);}
.compare-row dd{margin:0;color:var(--ink);flex:1 1 auto;}

/* ============ 时间轴 ============ */
.ui-timeline{position:relative;padding-left:34px;max-width:860px;}
.ui-timeline::before{
  content:"";position:absolute;left:9px;top:8px;bottom:8px;width:1px;background:var(--line);
}
.ui-timeline-item{position:relative;padding-bottom:32px;}
.ui-timeline-item:last-child{padding-bottom:0;}
.ui-timeline-dot{
  position:absolute;left:-34px;top:6px;width:10px;height:10px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 0 4px rgba(31,111,178,.14);
}
.ui-timeline-body{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease);
}
.ui-timeline-body:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.ui-timeline-step{font-size:12px;font-weight:700;color:var(--accent);letter-spacing:.6px;}
.ui-timeline-body h3{font-size:18px;margin:8px 0 8px;}
.ui-timeline-body p{color:var(--body);font-size:15px;}

/* ============ 频道卡 ============ */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.channel-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;height:100%;
  transition:transform var(--ease),box-shadow var(--ease);
}
.channel-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.channel-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EEF3F8;}
.channel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.2,.7,.3,1);}
.channel-card:hover .channel-thumb img{transform:scale(1.03);}
.channel-body{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1 1 auto;}
.channel-body h3{font-size:18px;margin-bottom:10px;}
.channel-body p{color:var(--body);font-size:15px;margin-bottom:16px;}
.channel-list{margin-bottom:20px;}
.channel-list li{
  position:relative;padding-left:20px;font-size:14px;color:var(--body);line-height:2;
}
.channel-list li::before{
  content:"";position:absolute;left:0;top:12px;width:8px;height:8px;border-radius:3px;
  background:var(--brand-light);border:1px solid rgba(31,111,178,.4);
}
.channel-body .ui-link-arrow{margin-top:auto;}

/* ============ 要点徽章条 ============ */
.point-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.point-item{
  display:flex;align-items:flex-start;gap:14px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh-1);
}
.point-icon{
  flex:0 0 auto;width:40px;height:40px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-light);color:var(--brand-dark);
}
.point-item h3{font-size:16px;margin-bottom:4px;}
.point-item p{font-size:14px;color:var(--body);line-height:1.75;}

/* ============ FAQ ============ */
.faq-wrap{max-width:820px;}
.faq-acc .accordion-item{
  border:1px solid var(--line);border-radius:12px!important;background:#fff;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);
}
.faq-acc .accordion-button{
  font-size:16px;font-weight:600;color:var(--ink);background:#fff;
  padding:18px 22px;box-shadow:none!important;border:0;
}
.faq-acc .accordion-button::after{
  background-image:none;
  content:"";width:12px;height:12px;border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg);transition:transform var(--ease);margin-left:auto;position:absolute;right:24px;
}
.faq-acc .accordion-button:not(.collapsed){background:var(--brand-50);color:var(--brand-dark);}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);}
.faq-acc .accordion-button:focus{box-shadow:inset 0 0 0 2px rgba(31,111,178,.35)!important;}
.faq-acc .accordion-body{
  padding:4px 22px 20px;color:var(--body);font-size:15px;line-height:1.9;background:var(--brand-50);
}

/* ============ 相关入口 ============ */
.rel-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.rel-card{
  display:flex;gap:20px;align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(31,111,178,.4);}
.rel-thumb{flex:0 0 132px;border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/10;background:#EEF3F8;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;}
.rel-card h3{font-size:17px;margin-bottom:6px;}
.rel-card p{font-size:14px;color:var(--body);}
.rel-card .ui-badge{margin-bottom:8px;}

/* ============ CTA 带 ============ */
.cta-band{
  background:var(--brand-50);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:64px 0;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-60px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,111,178,.10),transparent 68%);
}
.cta-inner{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.cta-inner h2{font-size:26px;margin-bottom:10px;}
.cta-inner p{color:var(--body);font-size:15px;max-width:640px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--foot);color:rgba(255,255,255,.8);padding:64px 0 0;margin-top:0;}
.site-footer h3{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:.4px;}
.site-footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:14px;}
.site-footer .site-logo-mark{background:linear-gradient(135deg,var(--brand) 0%,#2A86CE 100%);}
.site-footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);}
.site-footer-links{display:flex;flex-direction:column;gap:10px;}
.site-footer-links a{color:rgba(255,255,255,.72);font-size:14px;}
.site-footer-links a:hover{color:#fff;}
.site-footer-form{display:flex;flex-direction:column;gap:10px;}
.site-footer-form label{font-size:14px;color:rgba(255,255,255,.85);}
.site-footer-input{
  height:46px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.08);color:#fff;padding:0 14px;font-size:14px;outline:none;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.site-footer-input::placeholder{color:rgba(255,255,255,.45);}
.site-footer-input:focus{border-color:#59A7E0;box-shadow:0 0 0 3px rgba(89,167,224,.25);}
.site-footer-submit{width:100%;}
.site-footer-hint{font-size:12px;color:rgba(255,255,255,.45);line-height:1.7;}
.site-footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.14);
  padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:rgba(255,255,255,.55);flex-wrap:wrap;
}
.site-footer-bottom-links{display:flex;gap:18px;}
.site-footer-bottom-links a{color:rgba(255,255,255,.6);}
.site-footer-bottom-links a:hover{color:#fff;}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .channel-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991.98px){
  .ui-section{padding:64px 0;}
  .compare-grid{grid-template-columns:1fr;}
  .point-strip{grid-template-columns:1fr;}
  .rel-grid{grid-template-columns:1fr;}
  .cat-hero h1{font-size:30px;}
  .cat-hero-inner{padding:48px 0 52px;}
  .ui-section-head h2{font-size:25px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
}
@media (max-width:767.98px){
  .container{padding:0 20px;}
  .ui-section{padding:56px 0;}
  .cat-hero{min-height:260px;}
  .cat-hero h1{font-size:27px;}
  .channel-grid{grid-template-columns:1fr;}
  .rel-card{flex-direction:column;align-items:flex-start;}
  .rel-thumb{flex:0 0 auto;width:100%;}
  .ui-timeline{padding-left:26px;}
  .ui-timeline-dot{left:-26px;}
  .ui-btn{min-height:44px;}
  .site-footer{padding-top:48px;}
  .site-footer-bottom{flex-direction:column;align-items:flex-start;}
  .ui-section-head h2{font-size:23px;}
}
@media (max-width:575.98px){
  .site-logo-text{font-size:17px;}
  .cat-hero-actions .ui-btn{width:100%;}
  .compare-card{padding:22px;}
  .ui-timeline-body{padding:18px 18px;}
}