/* roulang page: index */
:root{
  --brand-50:#EAF3F7;--brand-100:#D3E6EE;--brand-200:#A8CCDD;--brand-400:#3E8CAD;
  --brand-600:#1E6C8C;--brand-700:#175670;--brand-900:#0E3648;
  --accent-500:#E8A33D;--accent-600:#D9912A;--accent-100:#FBF0DC;
  --ink-900:#132029;--ink-700:#33474F;--ink-500:#5E727C;
  --line:#DEE7EC;--bg:#F5F8FA;--surface:#FFFFFF;--surface-2:#F0F5F8;
  --success:#2F9E6E;--warn:#D98B2B;--danger:#D2544C;
  --r-sm:8px;--r-md:14px;--r-lg:20px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(19,32,41,.04),0 4px 12px rgba(19,32,41,.06);
  --sh-2:0 10px 28px rgba(19,32,41,.10);
  --ease:200ms cubic-bezier(.2,.7,.3,1);
  --container: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,sans-serif;
  font-size:16px;line-height:1.75;color:var(--ink-900);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
time{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--brand-400);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
@media (min-width:1400px){:root{--container:1280px}}

/* ---------- 顶部细条 ---------- */
.topbar{background:var(--brand-900);height:36px;display:flex;align-items:center;font-size:13px;color:rgba(255,255,255,.82)}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-note{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-links{display:flex;gap:18px;flex:0 0 auto}
.topbar-links a{transition:color var(--ease)}
.topbar-links a:hover{color:var(--accent-500)}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);border-bottom:1px solid var(--line);transition:box-shadow var(--ease)}
.site-header.is-stuck{box-shadow:var(--sh-1)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
.logo{display:flex;flex-direction:column;line-height:1.15;flex:0 0 auto}
.logo-main{font-size:20px;font-weight:700;color:var(--brand-700);letter-spacing:.01em}
.logo-sub{font-size:11px;color:var(--ink-500);letter-spacing:.2em;margin-top:2px}
.nav-tabs{display:flex;align-items:center;gap:4px;background:var(--surface-2);border-radius:var(--r-pill);padding:4px}
.nav-tab{position:relative;height:40px;display:inline-flex;align-items:center;padding:0 18px;border-radius:var(--r-pill);font-size:14px;color:var(--ink-700);transition:background var(--ease),color var(--ease)}
.nav-tab:hover{background:#fff;color:var(--brand-600)}
.nav-tab.is-active{background:#fff;color:var(--brand-700);font-weight:600;box-shadow:var(--sh-1)}
.nav-tab.is-active::after{content:"";position:absolute;left:50%;bottom:5px;width:18px;height:3px;border-radius:2px;background:var(--accent-500);transform:translateX(-50%)}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.burger{display:none;width:40px;height:40px;border-radius:var(--r-sm);align-items:center;justify-content:center;color:var(--brand-700);font-size:20px;transition:background var(--ease)}
.burger:hover{background:var(--brand-50)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;
  border-radius:var(--r-pill);font-size:15px;font-weight:600;white-space:nowrap;
  transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.btn-primary{background:var(--accent-500);color:var(--ink-900)}
.btn-primary:hover{background:var(--accent-600);transform:translateY(-2px);box-shadow:0 10px 22px rgba(232,163,61,.32)}
.btn-primary:active{transform:scale(.98)}
.btn-outline{background:var(--surface);border:1.5px solid var(--brand-600);color:var(--brand-700)}
.btn-outline:hover{background:var(--brand-50);transform:translateY(-2px)}
.btn-outline:active{transform:scale(.98)}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.btn.is-loading{pointer-events:none;opacity:.75}
.btn.is-loading::before{content:"";width:16px;height:16px;border-radius:50%;border:2px solid rgba(19,32,41,.25);border-top-color:var(--ink-900);animation:spin 700ms linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-600)}
.link-arrow::after{content:"→";transition:transform var(--ease)}
.link-arrow:hover{color:var(--brand-700)}
.link-arrow:hover::after{transform:translateX(3px)}

/* ---------- 标签 / 徽章 ---------- */
.chip{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:12px;font-weight:500;letter-spacing:.02em;background:var(--brand-50);color:var(--brand-700);transition:background var(--ease),color var(--ease)}
a.chip:hover{background:var(--brand-600);color:#fff}
.badge-new{display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:var(--r-pill);font-size:12px;background:var(--accent-100);color:#A96C12}
.chip-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:28px}
@media (max-width:767px){.chip-row{flex-wrap:nowrap;overflow-x:auto;padding-bottom:6px;scrollbar-width:none}
.chip-row::-webkit-scrollbar{display:none}}

/* ---------- 首屏 ---------- */
.hero{position:relative;overflow:hidden;background:var(--brand-900);min-height:480px;height:min(78vh,640px);display:flex;align-items:center}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-mask{position:absolute;inset:0;background:linear-gradient(90deg,rgba(14,54,72,.94) 0%,rgba(14,54,72,.80) 44%,rgba(14,54,72,.34) 100%)}
.hero-inner{position:relative;z-index:2;width:100%}
.hero-copy{max-width:640px;color:#fff;padding:48px 0}
.hero h1{font-size:clamp(30px,4.6vw,54px);font-weight:700;line-height:1.2;letter-spacing:-.01em;color:#fff}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.75;color:rgba(255,255,255,.86);max-width:560px}
.hero-actions{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap}
.hero-note{margin-top:14px;font-size:13px;color:rgba(255,255,255,.66)}
.hero-stats{display:flex;gap:36px;flex-wrap:wrap;margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.16)}
.hero-stat-num{font-size:22px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;line-height:1.3}
.hero-stat-txt{font-size:12px;color:rgba(255,255,255,.66);margin-top:2px}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0}
.section.alt{background:var(--surface)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px}
.sec-title{display:flex;align-items:center;gap:12px;font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3;color:var(--ink-900)}
.sec-title::before{content:"";width:4px;height:26px;border-radius:2px;background:var(--brand-600);flex:0 0 auto}
.sec-num{font-size:12px;font-weight:700;color:var(--accent-500);letter-spacing:.08em;font-variant-numeric:tabular-nums}
.sec-sub{margin-top:8px;font-size:14px;color:var(--ink-500)}

/* ---------- 横滑片库 ---------- */
.rail-wrap{position:relative}
.rail{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:10px;scrollbar-width:none}
.rail::-webkit-scrollbar{display:none}
.rail-item{flex:0 0 240px;scroll-snap-align:start}
.rail-arrow{position:absolute;top:38%;width:44px;height:44px;border-radius:50%;background:var(--surface);box-shadow:var(--sh-1);color:var(--brand-700);display:flex;align-items:center;justify-content:center;z-index:5;transition:background var(--ease),transform var(--ease)}
.rail-arrow:hover{background:var(--brand-50);transform:translateY(-2px)}
.rail-arrow.prev{left:-14px}
.rail-arrow.next{right:-14px}
.poster{position:relative;display:block;border-radius:var(--r-md);overflow:hidden;background:var(--surface-2);aspect-ratio:3/4}
.poster img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease)}
.poster:hover img{transform:scale(1.06)}
.poster-mask{position:absolute;inset:0;background:linear-gradient(transparent 42%,rgba(14,54,72,.88))}
.poster-body{position:absolute;left:0;right:0;bottom:0;padding:14px 16px}
.poster-title{color:#fff;font-size:16px;font-weight:600;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.poster-chip{position:absolute;top:12px;left:12px;background:rgba(255,255,255,.9);color:var(--brand-700);font-size:12px;padding:3px 10px;border-radius:var(--r-pill)}

/* ---------- 不对称栅格 ---------- */
.grid-12{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.feature-card{grid-column:span 7;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;transition:box-shadow var(--ease),transform var(--ease)}
.feature-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.feature-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.feature-body{padding:24px}
.feature-body h3{font-size:20px;font-weight:600;line-height:1.45}
.feature-body p{margin-top:10px;font-size:15px;color:var(--ink-700);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.meta-row{display:flex;align-items:center;gap:12px;margin-top:16px;font-size:13px;color:var(--ink-500)}
.rec-list{grid-column:span 5;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:6px 20px;display:flex;flex-direction:column;justify-content:center}
.rec-item{display:flex;gap:14px;align-items:center;padding:14px 0;border-bottom:1px solid var(--line)}
.rec-item:last-child{border-bottom:0}
.rec-thumb{width:104px;height:68px;flex:0 0 104px;border-radius:var(--r-sm);object-fit:cover;background:var(--surface-2)}
.rec-title{font-size:15px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-time{font-size:12px;color:var(--ink-500);margin-top:4px}

/* ---------- 双列大卡 ---------- */
.two-col{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.big-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;transition:box-shadow var(--ease),transform var(--ease)}
.big-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.big-card img{width:100%;aspect-ratio:3/2;object-fit:cover}
.big-body{padding:24px}
.big-body h3{font-size:19px;font-weight:600;line-height:1.45}
.big-body p{margin-top:10px;font-size:15px;color:var(--ink-700);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 三列紧凑卡 ---------- */
.three-col{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.mini-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:24px;transition:box-shadow var(--ease),transform var(--ease)}
.mini-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.mini-num{width:32px;height:32px;border-radius:50%;background:var(--brand-50);color:var(--brand-700);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;font-variant-numeric:tabular-nums}
.mini-card h3{margin-top:14px;font-size:18px;font-weight:600;line-height:1.45}
.mini-card p{margin-top:8px;font-size:14px;color:var(--ink-700);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.mini-tags{margin-top:16px;display:flex;gap:8px;flex-wrap:wrap}

/* ---------- 横排列表 ---------- */
.hrow{display:flex;align-items:center;gap:20px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:16px 20px;transition:background var(--ease),box-shadow var(--ease)}
.hrow + .hrow{margin-top:14px}
.hrow:hover{background:var(--surface-2);box-shadow:var(--sh-1)}
.hrow-thumb{width:160px;height:100px;flex:0 0 160px;border-radius:var(--r-sm);object-fit:cover;background:var(--surface-2)}
.hrow-body{flex:1 1 auto;min-width:0}
.hrow-body h3{font-size:17px;font-weight:600;line-height:1.5}
.hrow-body p{margin-top:6px;font-size:14px;color:var(--ink-700);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.hrow-side{flex:0 0 auto;font-size:13px;color:var(--ink-500);text-align:right}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;padding-left:34px;max-width:820px}
.timeline::before{content:"";position:absolute;left:8px;top:10px;bottom:10px;width:2px;background:var(--brand-100)}
.tl-item{position:relative;padding-bottom:28px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-34px;top:6px;width:16px;height:16px;border-radius:50%;background:var(--surface);border:3px solid var(--accent-500)}
.tl-item h3{font-size:17px;font-weight:600;line-height:1.5}
.tl-item p{margin-top:6px;font-size:15px;color:var(--ink-700)}

/* ---------- 最新信息（CMS 循环区） ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.news-card{background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--brand-400);border-radius:var(--r-md);padding:22px 24px;transition:box-shadow var(--ease),transform var(--ease),border-left-color var(--ease)}
.news-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-left-color:var(--accent-500)}
.news-title{font-size:18px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-title a:hover{color:var(--brand-700)}
.news-desc{margin-top:8px;font-size:14px;color:var(--ink-700);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:14px;font-size:13px;color:var(--ink-500)}
.news-body-top{margin-bottom:10px;display:flex;gap:8px;align-items:center}
.empty-state{min-height:120px;border-radius:var(--r-md);background:var(--surface-2);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:24px;text-align:center;color:var(--ink-500);font-size:14px}
.empty-state .empty-mark{width:44px;height:44px;border-radius:50%;background:var(--brand-100);display:flex;align-items:center;justify-content:center;color:var(--brand-700);font-size:18px}
.skeleton{height:120px;border-radius:var(--r-md);background:var(--surface-2);animation:breathe 1200ms linear infinite}
@keyframes breathe{0%,100%{opacity:1}50%{opacity:.6}}
.error-state{border-left:3px solid var(--danger);background:#FDF1F0;border-radius:var(--r-md);padding:16px 20px;font-size:14px;color:var(--ink-700)}

/* ---------- 数据条 ---------- */
.stats-bar{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{text-align:center;border-right:1px solid var(--line);padding:0 12px}
.stat:last-child{border-right:0}
.stat-num{font-size:30px;font-weight:700;color:var(--brand-700);line-height:1.2;font-variant-numeric:tabular-nums}
.stat-txt{margin-top:6px;font-size:13px;color:var(--ink-500)}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding:0 20px;font-size:15px;font-weight:600;text-align:left;color:var(--ink-900);transition:background var(--ease)}
.faq-q:hover{background:var(--brand-50)}
.faq-icon{position:relative;width:20px;height:20px;flex:0 0 20px}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand-600);border-radius:2px;transition:transform var(--ease)}
.faq-icon::before{left:0;right:0;top:9px;height:2px}
.faq-icon::after{top:0;bottom:0;left:9px;width:2px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 300ms var(--ease)}
.faq-a-inner{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--ink-700)}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--brand-700);border-radius:var(--r-lg);padding:56px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-band::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(135deg,rgba(255,255,255,.06) 0 2px,transparent 2px 14px);pointer-events:none}
.cta-copy{position:relative;z-index:2;max-width:560px}
.cta-copy h2{font-size:clamp(22px,2.2vw,30px);font-weight:700;line-height:1.35;color:#fff}
.cta-copy p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.82)}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.78);margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding:64px 0 40px}
.footer-col:not(:first-child){border-left:1px solid rgba(255,255,255,.12);padding-left:32px}
.footer-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-desc{font-size:14px;line-height:1.85;margin-top:14px;max-width:320px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;border-bottom:1px solid transparent;transition:color var(--ease),border-color var(--ease)}
.footer-links a:hover{color:#fff;border-bottom-color:var(--accent-500)}
.footer-cta{margin-top:20px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;font-size:13px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.footer-bottom a:hover{color:#fff}

/* ---------- 移动端抽屉 ---------- */
.overlay{position:fixed;inset:0;background:rgba(14,54,72,.45);opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);z-index:90}
.overlay.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;height:100%;width:88%;max-width:360px;background:var(--surface);z-index:100;transform:translateX(100%);transition:transform 260ms var(--ease);display:flex;flex-direction:column;padding:20px}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.drawer-close{width:36px;height:36px;border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--ink-700);transition:background var(--ease)}
.drawer-close:hover{background:var(--surface-2)}
.drawer-nav{flex:1 1 auto;overflow-y:auto}
.drawer-link{display:flex;align-items:center;height:52px;padding:0 14px;border-radius:var(--r-sm);font-size:15px;color:var(--ink-700);border-bottom:1px solid var(--line);transition:background var(--ease),color var(--ease)}
.drawer-link:hover{background:var(--brand-50);color:var(--brand-700)}
.drawer-link.is-active{background:var(--brand-50);color:var(--brand-700);font-weight:600}
.drawer-foot{padding-top:16px}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .sec-head{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:1023px){
  .nav-tabs{display:none}
  .burger{display:flex}
  .section{padding:64px 0}
  .hero{height:68vh;min-height:420px}
  .grid-12{grid-template-columns:1fr}
  .feature-card,.rec-list{grid-column:auto}
  .two-col,.three-col,.news-grid{grid-template-columns:1fr}
  .stats-bar{grid-template-columns:repeat(2,1fr);gap:20px}
  .stat{border-right:0;border-bottom:1px solid var(--line);padding-bottom:16px}
  .stat:nth-last-child(-n+2){border-bottom:0;padding-bottom:0}
  .footer-grid{grid-template-columns:1fr;gap:0;padding:40px 0 24px}
  .footer-col{padding:20px 0;border-top:1px solid rgba(255,255,255,.12)}
  .footer-col:not(:first-child){border-left:0;padding-left:0}
  .footer-col:first-child{border-top:0}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px}
  .rail-item{flex:0 0 176px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .topbar{display:none}
  .hero-copy{padding:36px 0}
  .hero-sub{font-size:16px}
  .hero-stats{gap:24px}
  .hero-actions .btn{flex:1 1 100%}
  .faq-q{min-height:52px}
  .hrow{flex-direction:column;align-items:flex-start}
  .hrow-thumb{width:100%;height:auto;aspect-ratio:16/9;flex:0 0 auto}
  .hrow-side{text-align:left}
  .rec-item{flex-direction:column;align-items:flex-start}
  .rec-thumb{width:100%;height:auto;aspect-ratio:16/9;flex:0 0 auto}
}
@media (max-width:480px){
  .hero h1{font-size:30px}
  .btn{width:100%}
  .nav-right .btn{width:auto}
  .cta-actions .btn{width:100%}
  .news-card{padding:18px}
}

/* roulang page: article */
:root{
  --brand-50:#EAF3F7;
  --brand-100:#D3E6EE;
  --brand-200:#A8CCDD;
  --brand-400:#3E8CAD;
  --brand-600:#1E6C8C;
  --brand-700:#175670;
  --brand-900:#0E3648;
  --accent-500:#E8A33D;
  --accent-600:#D9912A;
  --accent-100:#FBF0DC;
  --ink-900:#132029;
  --ink-700:#33474F;
  --ink-500:#5E727C;
  --line:#DEE7EC;
  --bg:#F5F8FA;
  --surface:#FFFFFF;
  --surface-2:#F0F5F8;
  --success:#2F9E6E;
  --warn:#D98B2B;
  --danger:#D2544C;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(19,32,41,.04),0 4px 12px rgba(19,32,41,.06);
  --sh-2:0 10px 28px rgba(19,32,41,.10);
  --t:200ms cubic-bezier(.2,.7,.3,1);
}
*,*::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,sans-serif;font-size:16px;line-height:1.75;color:var(--ink-900);background:var(--bg);overflow-x:hidden;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
img{display:block;max-width:100%;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--brand-400);outline-offset:2px}
::selection{background:var(--brand-200);color:var(--brand-900)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ 顶部细条 ============ */
.topbar{background:var(--brand-900);color:rgba(255,255,255,.82);font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:36px}
.topbar-tip{overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.topbar-links{display:flex;align-items:center;gap:8px;flex:none}
.topbar-links a{color:rgba(255,255,255,.82);transition:var(--t)}
.topbar-links a:hover{color:var(--accent-500)}
.topbar-links .sep{color:rgba(255,255,255,.35)}

/* ============ 主导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:var(--t)}
.site-header.is-stuck{box-shadow:var(--sh-1)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
.logo{display:flex;flex-direction:column;line-height:1.12;flex:none}
.logo-main{font-size:20px;font-weight:800;color:var(--brand-900);letter-spacing:-.01em}
.logo-sub{font-size:11px;color:var(--ink-500);letter-spacing:.18em}
.nav-tabs{display:flex;align-items:center;gap:4px;background:var(--surface-2);padding:4px;border-radius:var(--r-pill);min-width:0;overflow-x:auto;scrollbar-width:none}
.nav-tabs::-webkit-scrollbar{display:none}
.nav-tab{position:relative;display:inline-flex;align-items:center;height:40px;padding:0 18px;border-radius:var(--r-pill);font-size:14px;color:var(--ink-700);white-space:nowrap;transition:var(--t)}
.nav-tab:hover{color:var(--brand-600);background:#fff}
.nav-tab.is-active{background:#fff;color:var(--brand-700);font-weight:600;box-shadow:var(--sh-1)}
.nav-tab.is-active::after{content:"";position:absolute;left:18px;right:18px;bottom:4px;height:3px;border-radius:2px;background:var(--accent-500)}
.nav-right{display:flex;align-items:center;gap:12px;flex:none}
.burger{display:none;width:42px;height:42px;align-items:center;justify-content:center;border-radius:var(--r-sm);border:1px solid var(--line);font-size:18px;line-height:1;color:var(--brand-900);transition:var(--t)}
.burger:hover{background:var(--brand-50);border-color:var(--brand-200)}
.burger:active{transform:scale(.98)}

/* ============ 移动抽屉 ============ */
.nav-mask{position:fixed;inset:0;background:rgba(14,54,72,.45);opacity:0;visibility:hidden;transition:var(--t);z-index:80}
.nav-drawer{position:fixed;top:0;right:0;bottom:0;width:88%;max-width:360px;background:#fff;z-index:90;padding:22px 18px;overflow-y:auto;display:flex;flex-direction:column;transform:translateX(100%);transition:transform .28s cubic-bezier(.2,.7,.3,1);box-shadow:-12px 0 32px rgba(14,54,72,.18)}
body.nav-open .nav-mask{opacity:1;visibility:visible}
body.nav-open .nav-drawer{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:8px}
.drawer-close{width:36px;height:36px;border-radius:var(--r-sm);border:1px solid var(--line);font-size:16px;line-height:1;color:var(--brand-900)}
.drawer-link{display:flex;align-items:center;height:52px;padding:0 12px;border-radius:var(--r-sm);font-size:16px;color:var(--ink-700);border-bottom:1px solid var(--line);transition:var(--t)}
.drawer-link:hover{background:var(--surface-2);color:var(--brand-700)}
.drawer-link.is-active{color:var(--brand-700);font-weight:600;background:var(--brand-50)}
.drawer-cta{margin-top:auto;padding-top:22px}
.drawer-cta .btn{width:100%}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-pill);border:1.5px solid transparent;font-size:15px;font-weight:600;line-height:1;text-align:center;transition:var(--t)}
.btn-primary{background:var(--accent-500);color:var(--ink-900)}
.btn-primary:hover{background:var(--accent-600);transform:translateY(-2px);box-shadow:0 8px 20px rgba(232,163,61,.32)}
.btn-primary:active{transform:scale(.98)}
.btn-outline{background:#fff;border-color:var(--brand-600);color:var(--brand-700)}
.btn-outline:hover{background:var(--brand-50);transform:translateY(-2px)}
.btn-outline:active{transform:scale(.98)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* ============ 通用 ============ */
.section{padding:72px 0}
.section-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:28px;flex-wrap:wrap}
.section-title{display:flex;align-items:center;gap:12px;font-size:clamp(22px,2.4vw,30px);font-weight:700;color:var(--ink-900);line-height:1.3}
.section-title .bar{display:inline-block;width:4px;height:24px;border-radius:2px;background:var(--brand-600)}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--brand-600);transition:var(--t)}
.link-more span{transition:var(--t)}
.link-more:hover span{transform:translateX(3px)}
.chip{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);background:var(--brand-50);color:var(--brand-700);font-size:12px;font-weight:500;letter-spacing:.02em;border:1px solid transparent;transition:var(--t)}
.chip:hover{background:var(--brand-600);color:#fff;transform:translateY(-2px)}
.chip-cloud{display:flex;flex-wrap:wrap;gap:10px}

/* ============ 文章页头 ============ */
.page-band{position:relative;overflow:hidden;background:var(--brand-900)}
.page-band-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.32}
.page-band::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(14,54,72,.94) 0%,rgba(14,54,72,.72) 58%,rgba(23,86,112,.55) 100%)}
.page-band-inner{position:relative;z-index:2;padding-top:52px;padding-bottom:48px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.62);margin-bottom:20px}
.breadcrumb a{color:rgba(255,255,255,.85);transition:var(--t)}
.breadcrumb a:hover{color:var(--accent-500)}
.breadcrumb .bc-cur{color:#fff}
.bc-sep{color:rgba(255,255,255,.35)}
.badge-cat{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);background:rgba(232,163,61,.16);border:1px solid rgba(232,163,61,.42);color:var(--accent-500);font-size:12px;font-weight:600;letter-spacing:.02em}
.article-title{font-size:clamp(26px,3.2vw,40px);line-height:1.26;font-weight:700;letter-spacing:-.01em;color:#fff;margin:16px 0 18px;max-width:920px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:13px;color:rgba(255,255,255,.72);font-variant-numeric:tabular-nums}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.38)}

/* ============ 两栏布局 ============ */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:44px;align-items:start;padding-top:44px;padding-bottom:8px}
.article-main{min-width:0}
.article-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:36px 40px;box-shadow:var(--sh-1)}
.article-body{font-size:17px;line-height:1.85;color:var(--ink-700);word-break:break-word}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{position:relative;font-size:24px;font-weight:700;color:var(--ink-900);line-height:1.4;margin:40px 0 16px;padding-left:16px}
.article-body h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:2px;background:var(--brand-600)}
.article-body h3{font-size:20px;font-weight:600;color:var(--ink-900);line-height:1.45;margin:30px 0 12px}
.article-body h4{font-size:17px;font-weight:600;color:var(--ink-900);margin:24px 0 10px}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.3em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.45em 0}
.article-body li::marker{color:var(--brand-600)}
.article-body blockquote{margin:24px 0;padding:16px 20px;background:var(--brand-50);border-left:3px solid var(--brand-600);border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--ink-700);font-size:16px}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:24px auto;height:auto}
.article-body figure{margin:24px 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--ink-500);margin-top:10px}
.article-body a{color:var(--brand-600);border-bottom:1px solid var(--brand-200);transition:var(--t)}
.article-body a:hover{border-bottom-color:var(--brand-600)}
.article-body code{background:var(--surface-2);padding:2px 7px;border-radius:6px;font-size:.92em;color:var(--brand-700)}
.article-body pre{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-sm);padding:16px 18px;overflow-x:auto;margin:20px 0;font-size:14px;line-height:1.7}
.article-body pre code{background:none;padding:0;color:var(--ink-900)}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden}
.article-body th,.article-body td{padding:12px 14px;border:1px solid var(--line);text-align:left}
.article-body th{background:var(--surface-2);font-weight:600;color:var(--ink-900)}
.article-body tbody tr:nth-child(even){background:#FAFCFD}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}

/* 空态 */
.article-empty{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:56px 24px;text-align:center;box-shadow:var(--sh-1)}
.article-empty .empty-art{width:96px;height:64px;margin:0 auto 20px;border-radius:var(--r-sm);background:linear-gradient(135deg,var(--brand-50),var(--surface-2));border:1px solid var(--line)}
.article-empty h2{font-size:22px;font-weight:700;color:var(--ink-900);margin-bottom:10px}
.article-empty p{font-size:15px;color:var(--ink-500);max-width:420px;margin:0 auto 24px}
.empty-error{display:flex;gap:12px;align-items:flex-start;background:#FDF1F0;border-left:3px solid var(--danger);border-radius:var(--r-sm);padding:14px 16px;font-size:14px;color:var(--ink-700);margin-top:20px;text-align:left}

/* 标签行 */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:28px;padding-top:22px;border-top:1px dashed var(--line)}
.tag-row-label{font-size:13px;color:var(--ink-500)}

/* 上下篇 */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px}
.post-nav-card{display:flex;flex-direction:column;gap:8px;padding:18px 20px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);transition:var(--t)}
.post-nav-card:hover{border-color:var(--brand-200);box-shadow:var(--sh-2);transform:translateY(-3px)}
.post-nav-dir{font-size:12px;color:var(--ink-500)}
.post-nav-title{font-size:15px;font-weight:600;color:var(--ink-900);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-nav-card.next{text-align:right;align-items:flex-end}

/* ============ 侧栏 ============ */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:20px}
.side-title{position:relative;font-size:16px;font-weight:600;color:var(--ink-900);margin-bottom:14px;padding-left:12px;line-height:1.4}
.side-title::before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:3px;border-radius:2px;background:var(--brand-600)}
.side-links li+li{margin-top:4px}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;height:42px;padding:0 12px;border-radius:var(--r-sm);font-size:14px;color:var(--ink-700);transition:var(--t)}
.side-links a::after{content:"→";opacity:.45;transition:var(--t)}
.side-links a:hover{background:var(--surface-2);color:var(--brand-700)}
.side-links a:hover::after{transform:translateX(3px);opacity:1}
.check-list li{position:relative;padding-left:22px;margin:10px 0;font-size:14px;line-height:1.7;color:var(--ink-700)}
.check-list li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--accent-500)}
.side-note{margin-top:16px;font-size:13px;color:var(--ink-500);line-height:1.7;padding-top:14px;border-top:1px solid var(--line)}

/* ============ 卡片 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;transition:var(--t)}
.card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:var(--brand-200)}
.card-media{position:relative;aspect-ratio:3/2;overflow:hidden;background:var(--surface-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.2,.7,.3,1)}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{display:flex;flex-direction:column;gap:10px;padding:20px;flex:1}
.card-title{font-size:18px;font-weight:600;line-height:1.45;color:var(--ink-900);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-desc{font-size:14px;line-height:1.7;color:var(--ink-500);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;gap:8px;margin-top:auto;font-size:13px;color:var(--ink-500);font-variant-numeric:tabular-nums}
.card-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--brand-200)}

/* ============ CTA ============ */
.cta-band{position:relative;overflow:hidden;background:var(--brand-700);border-radius:var(--r-lg);padding:56px;display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-band::after{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.06) 0 2px,transparent 2px 10px);pointer-events:none}
.cta-copy{position:relative;z-index:1;min-width:0}
.cta-copy h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.35;color:#fff;margin-bottom:12px}
.cta-copy p{font-size:15px;color:rgba(255,255,255,.78);max-width:540px}
.cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex:none;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.78);margin-top:24px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding:56px 0 40px}
.footer-col{min-width:0}
.footer-col .logo{margin-bottom:16px}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:330px}
.footer-cta{margin-top:18px}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;line-height:1.4}
.footer-links li+li{margin-top:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.7);border-bottom:1px solid transparent;transition:var(--t)}
.footer-links a:hover{color:#fff;border-bottom-color:var(--accent-500)}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(255,255,255,.6);line-height:1.7}
.footer-bottom a{color:rgba(255,255,255,.72)}
.footer-bottom a:hover{color:#fff}

/* ============ 响应式 ============ */
@media (min-width:1400px){
  .container{max-width:1280px}
}
@media (max-width:1023px){
  .nav-tabs{display:none}
  .nav-right .btn{display:none}
  .burger{display:inline-flex}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:28px;padding-top:32px}
  .article-side{position:static}
  .article-panel{padding:28px 26px}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{padding:40px 32px;flex-direction:column;align-items:flex-start}
  .cta-band .title-wrap{max-width:100%}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .topbar{display:none}
  .nav-inner{height:60px;gap:12px}
  .logo-main{font-size:18px}
  .logo-sub{font-size:10px;letter-spacing:.14em}
  .page-band-inner{padding-top:34px;padding-bottom:32px}
  .article-title{font-size:26px}
  .section{padding:52px 0}
  .section-head{margin-bottom:20px}
  .article-panel{padding:22px 18px}
  .article-body{font-size:16px;line-height:1.8}
  .article-body h2{font-size:21px;margin-top:32px}
  .article-body h3{font-size:18px}
  .post-nav{grid-template-columns:minmax(0,1fr)}
  .post-nav-card.next{text-align:left;align-items:flex-start}
  .grid-3{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:0;padding:8px 0 24px}
  .footer-col{border-bottom:1px solid rgba(255,255,255,.12);padding:18px 0}
  .footer-col:last-child{border-bottom:0}
  .footer-desc{max-width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-band{padding:32px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}
@media (max-width:480px){
  .section{padding:44px 0}
  .btn{width:100%}
  .nav-right .btn{width:auto}
  .card-body{padding:16px}
  .cta-copy h2{font-size:21px}
  .article-title{font-size:23px}
  .badge-cat{height:24px}
}

/* roulang page: category1 */
:root{
  --brand-50:#EAF3F7;
  --brand-100:#D3E6EE;
  --brand-200:#A8CCDD;
  --brand-400:#3E8CAD;
  --brand-600:#1E6C8C;
  --brand-700:#175670;
  --brand-900:#0E3648;
  --accent-500:#E8A33D;
  --accent-100:#FBF0DC;
  --ink-900:#132029;
  --ink-700:#33474F;
  --ink-500:#5E727C;
  --line:#DEE7EC;
  --bg:#F5F8FA;
  --surface:#FFFFFF;
  --surface-2:#F0F5F8;
  --success:#2F9E6E;
  --warn:#D98B2B;
  --danger:#D2544C;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(19,32,41,.04), 0 4px 12px rgba(19,32,41,.06);
  --sh-2:0 10px 28px rgba(19,32,41,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
}

*,*::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,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink-900);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--brand-400);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.container{max-width:1280px}}
@media (max-width:767px){.container{padding:0 16px}}

/* ---------- 顶部细条 ---------- */
.topbar{background:var(--brand-900);color:rgba(255,255,255,.85);font-size:13px;height:36px;display:flex;align-items:center}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-note{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-right{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.topbar-right a{color:rgba(255,255,255,.85);transition:color .2s var(--ease)}
.topbar-right a:hover{color:var(--accent-500)}
.topbar-sep{color:rgba(255,255,255,.28)}
@media (max-width:767px){.topbar{display:none}}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .2s var(--ease)}
.site-header.is-stuck{box-shadow:var(--sh-1)}
.nav-inner{display:flex;align-items:center;gap:20px;height:68px}
.logo{display:flex;flex-direction:column;line-height:1.05;padding:4px 0;flex:0 0 auto}
.logo-main{font-size:20px;font-weight:800;color:var(--brand-700);letter-spacing:.01em}
.logo-sub{font-size:11px;color:var(--ink-500);letter-spacing:.14em;margin-top:3px}
.nav-tabs{display:flex;align-items:center;gap:2px;background:var(--surface-2);border-radius:var(--r-pill);padding:4px;margin:0 auto}
.nav-tab{position:relative;display:flex;align-items:center;height:40px;padding:0 18px;font-size:14px;color:var(--ink-700);border-radius:var(--r-pill);white-space:nowrap;transition:background-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease)}
.nav-tab:hover{color:var(--brand-600);background:rgba(255,255,255,.75)}
.nav-tab.is-active{background:#fff;color:var(--brand-700);font-weight:600;box-shadow:var(--sh-1)}
.nav-tab.is-active::after{content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:1px;width:18px;height:3px;border-radius:2px;background:var(--accent-500)}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.burger{display:none;width:44px;height:44px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--r-sm);font-size:18px;color:var(--brand-700);transition:background-color .2s var(--ease)}
.burger:hover{background:var(--surface-2)}

/* ---------- 抽屉 ---------- */
.drawer{position:fixed;top:0;right:0;bottom:0;width:88%;max-width:360px;background:#fff;z-index:90;transform:translateX(102%);transition:transform .28s var(--ease);display:flex;flex-direction:column;box-shadow:var(--sh-2)}
.drawer.is-open{transform:none}
.drawer-mask{position:fixed;inset:0;background:rgba(14,54,72,.45);z-index:80;opacity:0;pointer-events:none;transition:opacity .28s var(--ease)}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line)}
.drawer-close{width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:var(--r-sm);color:var(--ink-500);font-size:18px}
.drawer-close:hover{background:var(--surface-2);color:var(--ink-900)}
.drawer-nav{display:flex;flex-direction:column;padding:8px 0;overflow-y:auto;flex:1}
.drawer-link{display:flex;align-items:center;height:52px;padding:0 20px;font-size:15px;color:var(--ink-700);border-left:3px solid transparent;transition:background-color .2s var(--ease),color .2s var(--ease)}
.drawer-link:hover{background:var(--surface-2);color:var(--brand-600)}
.drawer-link.is-active{color:var(--brand-700);font-weight:600;border-left-color:var(--accent-500);background:var(--brand-50)}
.drawer-cta{padding:16px 20px;border-top:1px solid var(--line)}
.drawer-cta .btn{width:100%}
@media (min-width:768px){.drawer,.drawer-mask{display:none}}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-pill);font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;transition:transform .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--accent-500);color:var(--ink-900)}
.btn-primary:hover{background:#D9912A;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:#fff;border-color:var(--brand-600);color:var(--brand-700)}
.btn-ghost:hover{background:var(--brand-50);transform:translateY(-2px)}
.btn-ghost:active{transform:scale(.98)}
.btn-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-light:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}
.btn-light:active{transform:scale(.98)}
.btn:disabled,.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.btn.is-loading{pointer-events:none;opacity:.85}
.btn.is-loading::before{content:"";width:16px;height:16px;border:2px solid rgba(19,32,41,.28);border-top-color:var(--ink-900);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-600);transition:color .2s var(--ease)}
.text-link::after{content:"→";transition:transform .2s var(--ease)}
.text-link:hover{color:var(--brand-700)}
.text-link:hover::after{transform:translateX(3px)}

/* ---------- 通用 ---------- */
.section{padding:88px 0}
.section-alt{background:#fff}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-title{display:flex;gap:12px;align-items:flex-start}
.section-num{font-size:13px;font-weight:700;color:var(--accent-500);letter-spacing:.08em;padding-top:9px;font-variant-numeric:tabular-nums}
.section-title h2{position:relative;padding-left:14px;font-size:clamp(24px,2.6vw,30px);font-weight:700;line-height:1.3}
.section-title h2::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:2px;background:var(--brand-600)}
.section-sub{display:block;margin-top:6px;font-size:14px;font-weight:400;color:var(--ink-500)}
.lead{font-size:16px;color:var(--ink-700);max-width:760px}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

.chip{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);background:var(--brand-50);color:var(--brand-700);font-size:12px;font-weight:500;letter-spacing:.02em;transition:background-color .2s var(--ease),color .2s var(--ease)}
a.chip:hover{background:var(--brand-600);color:#fff}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);background:var(--accent-100);color:#A96C12;font-size:12px;font-weight:500}
.chip-row{display:flex;flex-wrap:wrap;gap:10px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--brand-900);color:#fff}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;opacity:.85}
.hero-mask{position:absolute;inset:0;background:linear-gradient(100deg,rgba(14,54,72,.95) 0%,rgba(14,54,72,.84) 44%,rgba(14,54,72,.38) 100%)}
.hero .container{position:relative;z-index:2}
.hero-inner{padding:56px 0 72px;max-width:700px}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.68);margin-bottom:24px}
.crumbs a:hover{color:#fff}
.crumbs .sep{color:rgba(255,255,255,.35)}
.crumbs .current{color:#fff}
.hero h1{font-size:clamp(32px,4.4vw,50px);font-weight:700;line-height:1.2;letter-spacing:-.01em}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.86);max-width:620px}
.hero-tags{margin-top:24px}
.hero .chip{background:rgba(255,255,255,.14);color:#fff}
.hero .chip:hover{background:#fff;color:var(--brand-700)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-hint{margin-top:16px;font-size:13px;color:rgba(255,255,255,.66)}
.hero-stats{display:flex;gap:36px;margin-top:48px;padding-top:28px;border-top:1px solid rgba(255,255,255,.16);flex-wrap:wrap}
.hero-stat-num{font-size:26px;font-weight:800;font-variant-numeric:tabular-nums}
.hero-stat-label{font-size:13px;color:rgba(255,255,255,.7);margin-top:2px}

/* ---------- 入口方式对比 ---------- */
.compare-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.compare-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:24px;box-shadow:var(--sh-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.compare-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.compare-card h3{font-size:19px;font-weight:600;line-height:1.45}
.compare-desc{margin-top:12px;font-size:14.5px;color:var(--ink-700)}
.rate-row{display:flex;align-items:center;gap:10px;margin-top:16px}
.rate-label{font-size:12px;color:var(--ink-500);min-width:48px}
.rate-track{flex:1;height:6px;border-radius:99px;background:var(--surface-2);overflow:hidden}
.rate-fill{height:100%;border-radius:99px;background:var(--brand-600)}
.rate-fill.is-accent{background:var(--accent-500)}
.rate-val{font-size:12px;color:var(--ink-500);font-variant-numeric:tabular-nums}
.dot-list{margin-top:16px}
.dot-list li{position:relative;padding-left:16px;margin-top:8px;font-size:14px;line-height:1.7;color:var(--ink-700)}
.dot-list li::before{content:"";position:absolute;left:0;top:.68em;width:6px;height:6px;border-radius:50%;background:var(--brand-400)}
.compare-foot{margin-top:auto;padding-top:18px}

/* ---------- 六步核查 ---------- */
.steps-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.step-card{display:flex;gap:18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:24px;box-shadow:var(--sh-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.step-num{flex:0 0 auto;width:42px;height:42px;display:flex;align-items:center;justify-content:center;border-radius:12px;background:var(--brand-50);color:var(--brand-700);font-size:14px;font-weight:700;font-variant-numeric:tabular-nums}
.step-card h3{font-size:18px;font-weight:600;line-height:1.45}
.step-card p{margin-top:8px;font-size:14.5px;color:var(--ink-700)}
.step-card .dot-list{margin-top:10px}
.step-card .dot-list li{font-size:13.5px;color:var(--ink-500)}

/* ---------- 设备对照列表 ---------- */
.media-list{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden}
.media-item{display:flex;gap:18px;padding:20px 24px;border-top:1px solid var(--line);transition:background-color .2s var(--ease)}
.media-item:first-child{border-top:0}
.media-item:hover{background:var(--surface-2)}
.media-thumb{flex:0 0 128px;width:128px;height:80px;border-radius:var(--r-sm);object-fit:cover}
.media-body{min-width:0}
.media-body h3{font-size:17px;font-weight:600;line-height:1.45}
.media-body p{margin-top:6px;font-size:14px;color:var(--ink-700)}
.media-meta{display:flex;align-items:center;gap:10px;margin-top:10px;font-size:13px;color:var(--ink-500);flex-wrap:wrap}
.media-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--line)}

/* ---------- 适用场景 ---------- */
.scene{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.scene-figure{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2)}
.scene-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.scene-figure .scene-tag{position:absolute;left:16px;top:16px;background:rgba(255,255,255,.92);color:var(--brand-700)}
.scene h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.35}
.scene p{margin-top:14px;font-size:15.5px;color:var(--ink-700)}
.check-list{margin-top:22px;display:grid;gap:12px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--ink-700)}
.check-list li span.tick{flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:var(--brand-50);color:var(--brand-600);font-size:12px;display:flex;align-items:center;justify-content:center;font-weight:700;margin-top:3px}

/* ---------- 数据条 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-md);margin-top:56px}
.stat{padding:26px 20px;text-align:center;border-left:1px solid var(--line)}
.stat:first-child{border-left:0}
.stat-num{font-size:30px;font-weight:800;color:var(--brand-700);line-height:1.2;font-variant-numeric:tabular-nums}
.stat-label{margin-top:6px;font-size:13px;color:var(--ink-500)}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding:12px 20px;font-size:15px;font-weight:600;color:var(--ink-900);transition:background-color .2s var(--ease)}
.faq-item summary:hover{background:var(--surface-2)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";flex:0 0 auto;font-size:20px;font-weight:400;color:var(--brand-600);line-height:1;transition:transform .2s var(--ease)}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--ink-700)}

/* ---------- 相关分类 ---------- */
.related{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:28px;display:flex;flex-wrap:wrap;align-items:center;gap:20px;justify-content:space-between}
.related .related-text h2{font-size:20px;font-weight:600}
.related .related-text p{margin-top:6px;font-size:14px;color:var(--ink-500)}

/* ---------- CTA ---------- */
.cta-section{padding:0 0 88px}
.cta-band{position:relative;overflow:hidden;background:var(--brand-700);color:#fff;border-radius:var(--r-lg);padding:56px;display:flex;align-items:center;justify-content:space-between;gap:36px}
.cta-band::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.06) 0 2px,transparent 2px 14px);pointer-events:none}
.cta-copy{position:relative;z-index:2;max-width:620px}
.cta-copy h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35}
.cta-copy p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.82)}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.78);padding:64px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-col{min-width:0}
.footer-desc{margin-top:18px;font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.66)}
.footer-cta{margin-top:20px}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-links{display:grid;gap:10px}
.footer-links a{color:rgba(255,255,255,.72);font-size:13.5px;transition:color .2s var(--ease),text-decoration-color .2s var(--ease);text-decoration:underline;text-decoration-color:transparent;text-underline-offset:4px}
.footer-links a:hover{color:#fff;text-decoration-color:var(--accent-500)}
.footer-bottom{margin-top:48px;padding:20px 0;border-top:1px solid rgba(255,255,255,.12);display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:13px;color:rgba(255,255,255,.6);flex-wrap:wrap}
.footer-bottom a{color:rgba(255,255,255,.72);text-decoration:underline;text-decoration-color:transparent;text-underline-offset:4px}
.footer-bottom a:hover{color:#fff;text-decoration-color:var(--accent-500)}
.footer-acc-toggle{display:none}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-tab{padding:0 13px;font-size:13.5px}
}
@media (max-width:1023px){
  .nav-tabs{display:none}
  .burger{display:flex}
  .nav-inner{gap:12px}
  .logo{margin-right:auto}
  .section{padding:64px 0}
  .compare-grid{grid-template-columns:1fr 1fr}
  .steps-grid{grid-template-columns:1fr}
  .scene{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:40px;flex-direction:column;align-items:flex-start}
  .stats{grid-template-columns:1fr 1fr}
  .stat:nth-child(3){border-left:0}
  .stat:nth-child(n+3){border-top:1px solid var(--line)}
}
@media (max-width:767px){
  .section{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:24px}
  .hero-inner{padding:40px 0 48px}
  .hero-sub{font-size:16px}
  .hero-stats{gap:24px;overflow-x:auto;flex-wrap:nowrap;padding-bottom:6px}
  .hero-stat{flex:0 0 auto}
  .compare-grid{grid-template-columns:1fr}
  .media-thumb{flex-basis:96px;width:96px;height:64px}
  .media-item{padding:16px;gap:14px}
  .faq-item summary{min-height:52px;font-size:14.5px}
  .cta-band{padding:32px 24px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto;min-width:150px}
  .related{padding:20px;flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr;gap:0}
  .footer-col{border-top:1px solid rgba(255,255,255,.12)}
  .footer-col:first-child{border-top:0}
  .footer-title{display:flex;align-items:center;justify-content:space-between;cursor:pointer;padding:16px 0;margin:0}
  .footer-title::after{content:"+";font-size:18px;color:rgba(255,255,255,.6);font-weight:400}
  .footer-col.is-open .footer-title::after{content:"−"}
  .footer-body{display:none;padding-bottom:20px}
  .footer-col.is-open .footer-body{display:block}
  .footer-cta{margin-top:0}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:520px){
  .hero h1{font-size:30px}
  .hero-actions .btn{width:100%}
  .stats{grid-template-columns:1fr}
  .stat{border-left:0;border-top:1px solid var(--line)}
  .stat:first-child{border-top:0}
  .compare-card,.step-card{padding:18px}
  .step-card{gap:14px}
  .media-item{flex-direction:column}
  .media-thumb{width:100%;height:150px;flex-basis:auto}
  .cta-actions .btn{width:100%}
}

/* roulang page: category3 */
:root{
  --brand-50:#EAF3F7;
  --brand-100:#D3E6EE;
  --brand-200:#A8CCDD;
  --brand-400:#3E8CAD;
  --brand-600:#1E6C8C;
  --brand-700:#175670;
  --brand-900:#0E3648;
  --accent-500:#E8A33D;
  --accent-600:#D9912A;
  --accent-100:#FBF0DC;
  --ink-900:#132029;
  --ink-700:#33474F;
  --ink-500:#5E727C;
  --line:#DEE7EC;
  --bg:#F5F8FA;
  --surface:#FFFFFF;
  --surface-2:#F0F5F8;
  --success:#2F9E6E;
  --warn:#D98B2B;
  --danger:#D2544C;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(19,32,41,.04),0 4px 12px rgba(19,32,41,.06);
  --sh-2:0 10px 28px rgba(19,32,41,.10);
  --ease:200ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei',system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--brand-400);outline-offset:2px}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding-left:0;list-style:none}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer;color:inherit}
time,.num{font-variant-numeric:tabular-nums}

.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 顶部细条 ---------- */
.topbar{background:var(--brand-900);color:rgba(255,255,255,.86);font-size:13px}
.topbar-inner{height:36px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-hint{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-links{display:flex;align-items:center;gap:18px;flex-shrink:0}
.topbar-links a{color:rgba(255,255,255,.86)}
.topbar-links a:hover{color:var(--accent-500)}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow var(--ease)}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.nav-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{display:flex;flex-direction:column;line-height:1.15;flex-shrink:0}
.logo-main{font-size:19px;font-weight:700;color:var(--brand-700);letter-spacing:.01em}
.logo-sub{font-size:11px;letter-spacing:.16em;color:var(--ink-500)}
.nav-tabs{display:flex;align-items:center;gap:4px;background:var(--surface-2);padding:4px;border-radius:var(--r-pill);overflow-x:auto;scrollbar-width:none}
.nav-tabs::-webkit-scrollbar{display:none}
.nav-tab{position:relative;display:inline-flex;align-items:center;height:40px;padding:0 18px;border-radius:var(--r-pill);font-size:14px;color:var(--ink-700);white-space:nowrap;transition:color var(--ease),background-color var(--ease),box-shadow var(--ease)}
.nav-tab:hover{color:var(--brand-600);background:var(--brand-50)}
.nav-tab.is-active{background:#fff;color:var(--brand-700);font-weight:600;box-shadow:var(--sh-1)}
.nav-tab.is-active::after{content:"";position:absolute;left:50%;bottom:3px;width:18px;height:3px;border-radius:2px;background:var(--accent-500);transform:translateX(-50%)}
.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0}
.burger{display:none;width:42px;height:42px;border-radius:var(--r-sm);border:1px solid var(--line);font-size:18px;line-height:1;color:var(--brand-700);align-items:center;justify-content:center}
.burger:hover{background:var(--brand-50)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-pill);font-size:15px;font-weight:600;white-space:nowrap;transition:transform var(--ease),background-color var(--ease),color var(--ease),box-shadow var(--ease),border-color var(--ease)}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--accent-500);color:var(--ink-900);box-shadow:0 4px 14px rgba(232,163,61,.28)}
.btn-primary:hover{background:var(--accent-600);transform:translateY(-2px);box-shadow:0 8px 20px rgba(232,163,61,.34)}
.btn-secondary{background:#fff;border:1.5px solid var(--brand-600);color:var(--brand-700)}
.btn-secondary:hover{background:var(--brand-50);transform:translateY(-2px)}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 面包屑 / 标签 ---------- */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);flex-wrap:wrap}
.breadcrumb a{color:var(--ink-500)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb .sep{opacity:.6}
.breadcrumb .current{color:var(--brand-700);font-weight:600}

.chip{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);background:var(--brand-50);color:var(--brand-700);font-size:12px;font-weight:500;letter-spacing:.02em}
.chip-link:hover{background:var(--brand-600);color:#fff}
.badge{display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:var(--r-pill);font-size:12px;font-weight:600;background:var(--accent-100);color:#A96C12}

/* ---------- Banner ---------- */
.banner{position:relative;color:#fff;background-image:linear-gradient(100deg,rgba(14,54,72,.94) 0%,rgba(14,54,72,.80) 46%,rgba(14,54,72,.42) 100%),url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center}
.banner-inner{padding:44px 0 64px;max-width:760px}
.banner .breadcrumb{color:rgba(255,255,255,.72);margin-bottom:22px}
.banner .breadcrumb a{color:rgba(255,255,255,.72)}
.banner .breadcrumb a:hover{color:#fff}
.banner .breadcrumb .current{color:#fff}
h1{font-size:clamp(30px,4.2vw,46px);font-weight:700;line-height:1.22;letter-spacing:-.01em}
.banner-desc{margin-top:18px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.86);max-width:640px}
.banner-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);font-size:13px;color:#fff}
.banner-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0}
.section-alt{background:var(--surface)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px}
.section-head-left{display:flex;gap:14px}
.section-bar{width:4px;border-radius:2px;background:var(--brand-600);flex-shrink:0}
.section-title{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.3}
.section-sub{margin-top:8px;font-size:14px;color:var(--ink-500)}
.section-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-600)}
.section-more span{transition:transform var(--ease)}
.section-more:hover span{transform:translateX(3px)}

/* ---------- 推荐版本卡 ---------- */
.version-hero{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:32px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1)}
.version-hero-media{position:relative;border-radius:var(--r-md);overflow:hidden;background:var(--surface-2)}
.version-hero-media img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover}
.version-hero-media .float-badge{position:absolute;left:16px;top:16px;background:rgba(255,255,255,.94);color:var(--brand-700);border-radius:var(--r-pill);padding:6px 14px;font-size:13px;font-weight:600}
.version-hero-body{padding:8px 12px 8px 0}
.version-hero-body h3{font-size:22px;font-weight:700;line-height:1.4;margin-top:12px}
.version-hero-body p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--ink-700)}
.spec-list{margin-top:22px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.spec-item{background:var(--surface-2);border-radius:var(--r-sm);padding:12px 14px}
.spec-item dt{font-size:12px;color:var(--ink-500);letter-spacing:.02em}
.spec-item dd{font-size:15px;font-weight:600;color:var(--ink-900);margin-top:2px}

/* ---------- 筛选 ---------- */
.filter-bar{display:flex;gap:10px;overflow-x:auto;padding:4px 2px 10px;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.filter-bar::-webkit-scrollbar{display:none}
.filter-chip{height:38px;padding:0 18px;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;color:var(--ink-700);font-size:14px;white-space:nowrap;transition:all var(--ease)}
.filter-chip:hover{color:var(--brand-600);border-color:var(--brand-200);background:var(--brand-50)}
.filter-chip.is-active{background:var(--brand-600);border-color:var(--brand-600);color:#fff;font-weight:600}

/* ---------- 版本行 ---------- */
.version-list{display:flex;flex-direction:column;gap:12px}
.version-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:20px 24px;transition:background-color var(--ease),border-color var(--ease),box-shadow var(--ease)}
.version-row:hover{background:var(--surface-2);border-color:var(--brand-200);box-shadow:var(--sh-1)}
.vr-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.vr-ver{font-size:18px;font-weight:700;color:var(--brand-700);letter-spacing:.01em}
.vr-note{margin-top:8px;font-size:14px;line-height:1.7;color:var(--ink-700)}
.vr-meta{margin-top:10px;display:flex;gap:18px;flex-wrap:wrap;font-size:13px;color:var(--ink-500)}
.vr-act{display:flex;gap:10px;align-items:center;flex-wrap:wrap;justify-content:flex-end}
.version-row.is-hidden{display:none}
.empty-state{margin-top:16px;height:120px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;background:var(--surface-2);border:1px dashed var(--line);border-radius:var(--r-md);color:var(--ink-500);font-size:14px}

/* ---------- 检查清单 / 提示 ---------- */
.check-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:32px;align-items:start}
.check-list{display:flex;flex-direction:column;gap:18px;counter-reset:step}
.check-list li{position:relative;padding-left:56px;min-height:40px}
.check-list li::before{counter-increment:step;content:counter(step,decimal-leading-zero);position:absolute;left:0;top:2px;width:38px;height:38px;border-radius:50%;background:var(--brand-50);color:var(--brand-700);font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center}
.check-list li h4{font-size:17px;font-weight:600;line-height:1.5}
.check-list li p{margin-top:6px;font-size:14px;line-height:1.8;color:var(--ink-700)}
.tip-card{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-md);padding:24px}
.tip-card h3{font-size:17px;font-weight:600}
.tip-list{margin-top:16px;display:flex;flex-direction:column;gap:12px}
.tip-list li{position:relative;padding-left:18px;font-size:14px;line-height:1.75;color:var(--ink-700)}
.tip-list li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--accent-500)}
.tip-card .btn{margin-top:20px}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;transition:border-color var(--ease)}
.faq-item.is-open{border-color:var(--brand-200)}
.faq-q{width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 20px;font-size:15px;font-weight:600;text-align:left;color:var(--ink-900)}
.faq-q:hover{color:var(--brand-600)}
.faq-icon{flex-shrink:0;width:22px;height:22px;border-radius:50%;background:var(--brand-50);color:var(--brand-700);font-size:15px;line-height:22px;text-align:center;transition:transform var(--ease),background-color var(--ease)}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--accent-100);color:#A96C12}
.faq-a{display:none;padding:0 20px 20px;font-size:14.5px;line-height:1.85;color:var(--ink-700)}
.faq-item.is-open .faq-a{display:block}

/* ---------- 相关分类 ---------- */
.rel-cats{display:flex;gap:12px;flex-wrap:wrap}
.cat-chip{display:inline-flex;align-items:center;height:40px;padding:0 20px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--line);color:var(--brand-700);font-size:14px;font-weight:500}
.cat-chip:hover{background:var(--brand-600);border-color:var(--brand-600);color:#fff}

/* ---------- CTA ---------- */
.cta-block{position:relative;overflow:hidden;background:var(--brand-700);border-radius:var(--r-lg);padding:56px;color:#fff}
.cta-block::after{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.06) 0 1px,transparent 1px 14px);pointer-events:none}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-copy{max-width:620px}
.cta-copy h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35}
.cta-copy p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.82);line-height:1.8}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.78);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:0}
.footer-col{padding:0 28px;border-left:1px solid rgba(255,255,255,.12)}
.footer-col:first-child{border-left:0;padding-left:0}
.footer-col:last-child{padding-right:0}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);max-width:320px}
.footer-cta{margin-top:20px}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.78);border-bottom:1px solid transparent;padding-bottom:2px}
.footer-links a:hover{color:#fff;border-bottom-color:var(--accent-500)}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.6)}
.footer-bottom a{color:rgba(255,255,255,.72)}
.footer-bottom a:hover{color:#fff}

/* ---------- 抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(14,54,72,.45);opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);z-index:70}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:88%;max-width:360px;background:#fff;z-index:80;transform:translateX(100%);transition:transform var(--ease);display:flex;flex-direction:column;padding:20px}
.drawer.is-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-close{width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);font-size:18px;color:var(--brand-700)}
.drawer-nav{margin-top:12px;display:flex;flex-direction:column}
.drawer-item{height:52px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink-700)}
.drawer-item:hover{color:var(--brand-600)}
.drawer-item.is-active{color:var(--brand-700);font-weight:600}
.drawer-item.is-active::after{content:"";width:3px;height:18px;border-radius:2px;background:var(--accent-500)}
.drawer-cta{margin-top:auto;padding-top:20px}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .version-hero{grid-template-columns:1fr}
  .version-hero-body{padding:8px 0}
}
@media (max-width:1023px){
  .section{padding:64px 0}
  .nav-tabs{display:none}
  .burger{display:inline-flex}
  .check-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 0}
  .footer-col{padding:0 24px}
  .footer-col:nth-child(3){border-left:0;padding-left:0}
  .cta-block{padding:40px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .topbar{display:none}
  .banner-inner{padding:32px 0 44px}
  .banner-desc{font-size:15px}
  .section{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px}
  .version-row{grid-template-columns:1fr;gap:16px;padding:18px}
  .vr-act{justify-content:flex-start}
  .version-row .btn{flex:1 1 auto}
  .spec-list{grid-template-columns:1fr 1fr}
  .faq-q{min-height:52px;padding:0 16px}
  .faq-a{padding:0 16px 18px}
  .footer-grid{grid-template-columns:1fr;gap:0}
  .footer-col{border-left:0;padding:20px 0;border-top:1px solid rgba(255,255,255,.12)}
  .footer-col:first-child{border-top:0;padding-top:0}
  .footer-bottom{margin-top:24px}
  .cta-block{padding:32px 24px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
}
@media (max-width:480px){
  h1{font-size:30px}
  .section-title{font-size:22px}
  .banner-actions .btn{width:100%}
  .spec-list{grid-template-columns:1fr}
  .version-hero{padding:16px}
  .filter-chip{height:36px;padding:0 14px;font-size:13px}
}

/* roulang page: category2 */
:root{
  --brand-50:#EAF3F7;--brand-100:#D3E6EE;--brand-200:#A8CCDD;--brand-400:#3E8CAD;
  --brand-600:#1E6C8C;--brand-700:#175670;--brand-900:#0E3648;
  --accent-500:#E8A33D;--accent-600:#D9912A;--accent-100:#FBF0DC;--accent-ink:#A96C12;
  --ink-900:#132029;--ink-700:#33474F;--ink-500:#5E727C;
  --line:#DEE7EC;--bg:#F5F8FA;--surface:#FFFFFF;--surface-2:#F0F5F8;
  --success:#2F9E6E;--warn:#D98B2B;--danger:#D2544C;
  --r-sm:8px;--r-md:14px;--r-lg:20px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(19,32,41,.04),0 4px 12px rgba(19,32,41,.06);
  --sh-2:0 10px 28px rgba(19,32,41,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::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,sans-serif;
  font-size:16px;line-height:1.75;color:var(--ink-900);background:var(--bg);
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease)}
ul,ol{margin:0;padding:0}
button,input,select{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0}
:focus-visible{outline:2px solid var(--brand-400);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}

/* ---------- 顶部细条 ---------- */
.topbar{background:var(--brand-900);color:rgba(255,255,255,.82);font-size:13px;height:36px;display:flex;align-items:center}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-note{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-links{display:flex;align-items:center;gap:14px;flex:none}
.topbar-links a{color:rgba(255,255,255,.86)}
.topbar-links a:hover{color:var(--accent-500)}
.topbar-links .sep{color:rgba(255,255,255,.28)}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .2s var(--ease)}
.site-header.is-stuck{box-shadow:var(--sh-1)}
.nav-inner{display:flex;align-items:center;gap:24px;height:68px}
.logo{display:inline-flex;flex-direction:column;line-height:1.15;flex:none}
.logo-main{font-size:19px;font-weight:700;color:var(--brand-700)}
.logo-sub{font-size:12px;color:var(--ink-500);letter-spacing:.02em}
.nav-tabs{display:flex;align-items:center;gap:4px;background:var(--surface-2);border-radius:var(--r-pill);padding:4px;margin:0 auto}
.nav-tab{position:relative;height:40px;display:inline-flex;align-items:center;padding:0 18px;border-radius:var(--r-pill);font-size:14px;color:var(--ink-700);white-space:nowrap}
.nav-tab:hover{color:var(--brand-600);background:var(--brand-50)}
.nav-tab.is-active{background:#fff;color:var(--brand-700);font-weight:600;box-shadow:var(--sh-1)}
.nav-tab.is-active::after{content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:3px;width:22px;height:3px;border-radius:2px;background:var(--accent-500)}
.nav-right{display:flex;align-items:center;gap:12px;flex:none}
.burger{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-sm);font-size:18px;color:var(--brand-700);align-items:center;justify-content:center;background:#fff}
.burger:hover{background:var(--brand-50)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;background:transparent;
  transition:background-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.btn-primary{background:var(--accent-500);color:var(--ink-900)}
.btn-primary:hover{background:var(--accent-600);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:scale(.98)}
.btn-outline{background:#fff;border:1.5px solid var(--brand-600);color:var(--brand-700)}
.btn-outline:hover{background:var(--brand-50);transform:translateY(-2px)}
.btn-outline:active{transform:scale(.98)}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);font-size:14px;font-weight:600}
.btn-link .arw{transition:transform .2s var(--ease)}
.btn-link:hover .arw{transform:translateX(3px)}

/* ---------- 页面横幅 ---------- */
.page-hero{
  position:relative;color:#fff;padding:54px 0 62px;
  background-image:linear-gradient(102deg,rgba(14,54,72,.94) 0%,rgba(14,54,72,.72) 52%,rgba(14,54,72,.38) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.7);margin-bottom:20px}
.breadcrumb a{color:rgba(255,255,255,.8)}
.breadcrumb a:hover{color:#fff;text-decoration:underline}
.breadcrumb .cur{color:#fff;font-weight:600}
.breadcrumb .div{color:rgba(255,255,255,.4)}
.hero-tag{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--accent-100);color:var(--accent-ink);font-size:12px;font-weight:600;letter-spacing:.02em;margin-bottom:16px}
.page-hero h1{font-size:clamp(28px,3.6vw,44px);line-height:1.22;max-width:820px;font-weight:700}
.page-hero .lead{margin-top:16px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.86);max-width:680px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.chip-hero{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);color:#fff;font-size:13px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}

/* ---------- 区块通用 ---------- */
.section{padding:80px 0}
.section-white{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px}
.section-title{position:relative;padding-left:16px;font-size:clamp(22px,2.4vw,30px);line-height:1.3}
.section-title::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:2px;background:var(--brand-600)}
.section-sub{padding-left:16px;margin-top:8px;font-size:14px;color:var(--ink-500)}
.section-num{display:inline-block;font-size:13px;font-weight:600;color:var(--brand-600);letter-spacing:.08em;margin-bottom:8px}

/* ---------- 分步时间轴 + 侧栏 ---------- */
.login-layout{display:grid;grid-template-columns:minmax(0,1fr) 344px;gap:40px;align-items:start}
.timeline{position:relative}
.tl-item{position:relative;padding-left:56px;margin-bottom:22px}
.tl-item:last-child{margin-bottom:0}
.tl-item::before{content:"";position:absolute;left:15px;top:38px;bottom:-22px;width:2px;background:var(--line)}
.tl-item:last-child::before{display:none}
.tl-node{position:absolute;left:0;top:16px;width:32px;height:32px;border-radius:50%;background:var(--accent-500);color:#fff;
  font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;box-shadow:0 0 0 4px var(--bg);font-variant-numeric:tabular-nums}
.tl-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:20px 24px;box-shadow:var(--sh-1);
  transition:box-shadow .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease)}
.tl-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:var(--brand-200)}
.tl-card h3{font-size:18px;font-weight:600;line-height:1.5;margin-bottom:8px}
.tl-card p{font-size:15px;color:var(--ink-700);line-height:1.75}
.points{list-style:none;margin-top:14px;display:grid;gap:8px}
.points li{position:relative;padding-left:20px;font-size:14px;color:var(--ink-700);line-height:1.7}
.points li::before{content:"";position:absolute;left:0;top:.6em;width:7px;height:7px;border-radius:50%;background:var(--brand-400)}

.side-card{position:sticky;top:100px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);padding:24px}
.side-card h3{font-size:18px;margin-bottom:6px}
.side-note{font-size:13px;color:var(--ink-500);margin-bottom:18px}
.check-list{list-style:none;display:grid;gap:11px;margin-bottom:22px}
.check-list li{position:relative;padding-left:28px;font-size:14px;color:var(--ink-700);line-height:1.65}
.check-list li::before{content:"";position:absolute;left:0;top:4px;width:18px;height:18px;border-radius:50%;background:var(--brand-50);border:1px solid var(--brand-200)}
.check-list li::after{content:"";position:absolute;left:6px;top:8px;width:5px;height:9px;border-right:2px solid var(--brand-600);border-bottom:2px solid var(--brand-600);transform:rotate(45deg)}

.mini-form{border-top:1px solid var(--line);padding-top:18px;margin-top:20px}
.mini-form-title{font-size:15px;font-weight:600;margin-bottom:4px}
.mini-form-tip{font-size:13px;color:var(--ink-500);margin-bottom:14px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;color:var(--ink-700);margin-bottom:6px}
.input,.select{width:100%;height:48px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;
  font-size:15px;color:var(--ink-900);transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--ink-500) 50%),linear-gradient(135deg,var(--ink-500) 50%,transparent 50%);
  background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.input::placeholder{color:#93A3AB}
.input:focus,.select:focus{outline:none;border:2px solid var(--brand-600);box-shadow:0 0 0 3px rgba(30,108,140,.12)}
.input:disabled,.select:disabled{opacity:.5;cursor:not-allowed;background:var(--surface-2)}
.form-note{display:none;margin-top:12px;padding:10px 14px;border-left:3px solid var(--brand-600);background:var(--brand-50);
  border-radius:0 var(--r-sm) var(--r-sm) 0;font-size:13px;color:var(--brand-700);line-height:1.7}
.form-note.is-on{display:block}
.form-error{display:none;margin-top:8px;font-size:13px;color:var(--danger)}
.form-error.is-on{display:block}

/* ---------- 对比区 ---------- */
.compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.compare-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:26px;box-shadow:var(--sh-1);
  transition:box-shadow .2s var(--ease),transform .2s var(--ease)}
.compare-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.compare-card.is-alt{background:var(--brand-50);border-color:var(--brand-100)}
.compare-tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);font-size:12px;font-weight:600;color:var(--brand-700);margin-bottom:14px}
.compare-card h3{font-size:19px;margin-bottom:10px}
.compare-card > p{font-size:15px;color:var(--ink-700)}

.spec-list{margin-top:28px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden}
.spec-row{display:grid;grid-template-columns:180px minmax(0,1fr);gap:20px;padding:18px 24px;border-bottom:1px solid var(--line);
  font-size:15px;align-items:start;transition:background-color .2s var(--ease)}
.spec-row:last-child{border-bottom:none}
.spec-row:hover{background:var(--surface-2)}
.spec-key{font-size:14px;color:var(--ink-500);font-weight:600}
.spec-val{color:var(--ink-700);line-height:1.75}

.figure-card{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,1fr);background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);margin-top:32px}
.figure-card img{width:100%;height:100%;min-height:280px;object-fit:cover}
.figure-body{padding:32px}
.figure-body h3{font-size:20px;margin-bottom:12px}
.figure-body > p{font-size:15px;color:var(--ink-700)}

/* ---------- 深色安全区 ---------- */
.dark-block{position:relative;overflow:hidden;background:var(--brand-900);color:#fff;border-radius:var(--r-lg);
  padding:52px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:start}
.dark-block::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(135deg,rgba(255,255,255,.06) 0 2px,transparent 2px 14px);opacity:.9}
.dark-block > *{position:relative;z-index:1}
.dark-block h2{font-size:clamp(22px,2.3vw,28px);line-height:1.35;margin-bottom:14px}
.dark-block .dark-lead{font-size:15px;line-height:1.85;color:rgba(255,255,255,.78);max-width:440px}
.dark-list{display:grid;gap:0}
.dark-list .item{padding:18px 0;border-bottom:1px solid rgba(255,255,255,.12)}
.dark-list .item:first-child{padding-top:0}
.dark-list .item:last-child{border-bottom:none;padding-bottom:0}
.dark-list h3{font-size:16px;font-weight:600;margin-bottom:6px;color:#fff}
.dark-list p{font-size:14px;line-height:1.75;color:rgba(255,255,255,.72)}
.dark-actions{margin-top:22px;display:flex;gap:12px;flex-wrap:wrap}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:900px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;transition:border-color .2s var(--ease)}
.faq-item.is-open{border-color:var(--brand-200)}
.faq-q{width:100%;min-height:56px;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  text-align:left;font-size:15px;font-weight:600;color:var(--ink-900);transition:background-color .2s var(--ease)}
.faq-q:hover{background:var(--brand-50)}
.faq-icon{position:relative;width:20px;height:20px;flex:none}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--brand-600);
  transform:translate(-50%,-50%);transition:transform .25s var(--ease),opacity .25s var(--ease);border-radius:2px}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a-inner{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--ink-700)}

/* ---------- 相关分类 ---------- */
.related-wrap{display:flex;flex-wrap:wrap;gap:12px}
.chip-link{display:inline-flex;align-items:center;height:42px;padding:0 22px;border-radius:var(--r-pill);
  background:var(--brand-50);border:1px solid var(--brand-100);color:var(--brand-700);font-size:14px;font-weight:500;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease)}
.chip-link:hover{background:var(--brand-600);color:#fff;border-color:var(--brand-600);transform:translateY(-2px)}
.chip-link.is-now{background:var(--brand-700);color:#fff;border-color:var(--brand-700)}

/* ---------- CTA 色块 ---------- */
.cta-block{position:relative;overflow:hidden;background:var(--brand-700);color:#fff;border-radius:var(--r-lg);
  padding:56px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center}
.cta-block::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(135deg,rgba(255,255,255,.06) 0 2px,transparent 2px 14px)}
.cta-block > *{position:relative;z-index:1}
.cta-block h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35;margin-bottom:10px}
.cta-block p{font-size:15px;color:rgba(255,255,255,.82);max-width:520px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.78);padding:64px 0 0;margin-top:80px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:0}
.footer-col{padding:0 28px}
.footer-col:first-child{padding-left:0}
.footer-col:not(:first-child){border-left:1px solid rgba(255,255,255,.12)}
.footer-col:last-child{padding-right:0}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:320px}
.footer-cta{margin-top:20px}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links{list-style:none;display:grid;gap:11px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.74)}
.footer-links a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--accent-500);text-underline-offset:4px}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  margin-top:48px;padding:20px 0;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(255,255,255,.6)}
.footer-bottom a{color:rgba(255,255,255,.72)}
.footer-bottom a:hover{color:var(--accent-500)}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(14,54,72,.45);opacity:0;visibility:hidden;transition:opacity .25s var(--ease),visibility .25s var(--ease);z-index:80}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;height:100%;width:88%;max-width:360px;background:#fff;z-index:90;
  transform:translateX(100%);transition:transform .28s var(--ease);display:flex;flex-direction:column;padding:20px 20px 24px;overflow-y:auto}
.drawer.is-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-close{width:38px;height:38px;border:1px solid var(--line);border-radius:var(--r-sm);color:var(--ink-700);font-size:16px}
.drawer-close:hover{background:var(--brand-50)}
.drawer-nav{display:flex;flex-direction:column;margin-top:8px;flex:1}
.drawer-link{height:52px;display:flex;align-items:center;padding:0 6px;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink-700)}
.drawer-link.is-active{color:var(--brand-700);font-weight:600}
.drawer-link:hover{color:var(--brand-600)}
.drawer-cta{margin-top:22px}

/* ---------- 响应式 ---------- */
@media (max-width:1399px){
  .container{max-width:1200px}
}
@media (max-width:1199px){
  .nav-tab{padding:0 13px;font-size:13.5px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}
  .footer-col{padding:0 20px}
}
@media (max-width:1023px){
  .section{padding:64px 0}
  .login-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .side-card{position:static;top:auto}
  .dark-block{grid-template-columns:minmax(0,1fr);gap:28px;padding:40px}
  .figure-card{grid-template-columns:minmax(0,1fr)}
  .figure-card img{min-height:220px;max-height:280px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 0}
  .footer-col{padding:0 20px}
  .footer-col:nth-child(odd){padding-left:0;border-left:none}
  .footer-col:nth-child(even){border-left:1px solid rgba(255,255,255,.12)}
  .cta-block{grid-template-columns:minmax(0,1fr);padding:40px}
}
@media (max-width:767px){
  .topbar{display:none}
  .container{padding:0 16px}
  .nav-tabs{display:none}
  .burger{display:inline-flex}
  .nav-inner{gap:12px;justify-content:space-between;height:62px}
  .section{padding:48px 0}
  .page-hero{padding:40px 0 48px}
  .page-hero .lead{font-size:15px}
  .hero-actions .btn{flex:1 1 auto}
  .compare-grid{grid-template-columns:minmax(0,1fr)}
  .spec-row{grid-template-columns:minmax(0,1fr);gap:6px;padding:16px 18px}
  .figure-body{padding:22px}
  .dark-block{padding:28px 22px}
  .cta-block{padding:32px 22px}
  .faq-q{min-height:52px;padding:13px 16px;font-size:14.5px}
  .faq-a-inner{padding:0 16px 18px;font-size:14.5px}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:0}
  .footer-col{padding:0;border-left:none !important;border-bottom:1px solid rgba(255,255,255,.12);padding:18px 0}
  .footer-col:first-child{border-bottom:1px solid rgba(255,255,255,.12)}
  .footer-title{margin-bottom:12px}
  .footer-bottom{flex-direction:column;align-items:flex-start;margin-top:24px}
  .site-footer{padding-top:40px;margin-top:48px}
}
@media (max-width:480px){
  h1,h2{word-break:break-word}
  .page-hero h1{font-size:27px}
  .hero-actions{gap:10px}
  .hero-actions .btn{width:100%}
  .tl-item{padding-left:46px}
  .tl-item::before{left:12px}
  .tl-node{width:26px;height:26px;font-size:12px}
  .tl-card{padding:16px}
  .chip-link{height:38px;padding:0 16px;font-size:13px}
  .btn{height:46px;padding:0 20px}
  .btn-sm{height:38px}
}

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

/* roulang page: category4 */
:root{
  --brand-50:#EAF3F7; --brand-100:#D3E6EE; --brand-200:#A8CCDD; --brand-400:#3E8CAD;
  --brand-600:#1E6C8C; --brand-700:#175670; --brand-900:#0E3648;
  --accent-500:#E8A33D; --accent-600:#D9912A; --accent-100:#FBF0DC; --accent-ink:#A96C12;
  --ink-900:#132029; --ink-700:#33474F; --ink-500:#5E727C;
  --line:#DEE7EC; --bg:#F5F8FA; --surface:#FFFFFF; --surface-2:#F0F5F8;
  --success:#2F9E6E; --warn:#D98B2B; --danger:#D2544C;
  --r-sm:8px; --r-md:14px; --r-lg:20px; --r-pill:999px;
  --sh-1:0 1px 2px rgba(19,32,41,.04),0 4px 12px rgba(19,32,41,.06);
  --sh-2:0 10px 28px rgba(19,32,41,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --s1:4px; --s2:8px; --s3:12px; --s4:16px; --s5:24px; --s6:32px; --s7:48px; --s8:64px; --s9:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--bg); color:var(--ink-900);
  font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  font-size:16px; line-height:1.75;
}
img{max-width:100%; display:block; border:0}
a{color:var(--brand-600); text-decoration:none; transition:color 200ms var(--ease)}
a:hover{color:var(--brand-700)}
ul,ol{margin:0; padding:0; list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input{font:inherit; color:inherit}
button{cursor:pointer; background:none; border:0}
:focus-visible{outline:2px solid var(--brand-400); outline-offset:2px; border-radius:6px}
.container{width:100%; max-width:1200px; margin:0 auto; padding:0 24px}

/* 按钮 */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:48px; padding:0 26px; border-radius:var(--r-pill);
  font-weight:600; font-size:15px; white-space:nowrap;
  transition:transform 200ms var(--ease), background 200ms var(--ease), box-shadow 200ms var(--ease), color 200ms var(--ease);
}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--accent-500); color:var(--ink-900); box-shadow:0 6px 16px rgba(232,163,61,.32)}
.btn-primary:hover{background:var(--accent-600); color:var(--ink-900); transform:translateY(-2px)}
.btn-outline{background:var(--surface); color:var(--brand-700); border:1.5px solid var(--brand-600)}
.btn-outline:hover{background:var(--brand-50); transform:translateY(-2px)}
.btn-ghost{background:transparent; color:#fff; border:1px solid rgba(255,255,255,.55)}
.btn-ghost:hover{background:rgba(255,255,255,.12); color:#fff; transform:translateY(-2px)}
.btn-sm{height:40px; padding:0 18px; font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.5; cursor:not-allowed; transform:none}
.btn.is-loading::before{
  content:""; width:16px; height:16px; border-radius:50%;
  border:2px solid rgba(19,32,41,.25); border-top-color:var(--ink-900);
  animation:spin 700ms linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.link-arrow{display:inline-flex; align-items:center; gap:6px; font-weight:600; color:var(--brand-600)}
.link-arrow::after{content:"→"; transition:transform 200ms var(--ease)}
.link-arrow:hover::after{transform:translateX(3px)}

/* 顶部导航 */
.site-header{background:var(--surface); border-bottom:1px solid var(--line); position:sticky; top:0; z-index:60; transition:box-shadow 200ms var(--ease)}
.site-header.is-stuck{box-shadow:var(--sh-1)}
.nav-inner{display:flex; align-items:center; justify-content:space-between; gap:24px; height:68px}
.logo{display:flex; flex-direction:column; line-height:1.15; text-decoration:none}
.logo-main{font-size:20px; font-weight:800; letter-spacing:.02em; color:var(--brand-900)}
.logo-sub{font-size:12px; font-weight:500; letter-spacing:.14em; color:var(--ink-500)}
.nav-tabs{display:flex; align-items:center; gap:4px; background:var(--surface-2); padding:4px; border-radius:var(--r-pill)}
.nav-tab{
  position:relative; display:inline-flex; align-items:center; height:40px; padding:0 18px;
  border-radius:var(--r-pill); font-size:14px; color:var(--ink-700); transition:all 200ms var(--ease);
}
.nav-tab:hover{background:var(--brand-50); color:var(--brand-600)}
.nav-tab.is-active{background:var(--surface); color:var(--brand-700); font-weight:600; box-shadow:var(--sh-1)}
.nav-tab.is-active::after{
  content:""; position:absolute; left:18px; right:18px; bottom:5px; height:3px;
  border-radius:var(--r-pill); background:var(--accent-500);
}
.nav-right{display:flex; align-items:center; gap:12px}
.burger{display:none; width:42px; height:42px; border:1px solid var(--line); border-radius:var(--r-sm); font-size:18px; color:var(--brand-700); background:var(--surface)}

/* 抽屉 */
.drawer{position:fixed; inset:0; z-index:120; pointer-events:none}
.drawer-mask{position:absolute; inset:0; background:rgba(14,54,72,.45); opacity:0; transition:opacity 240ms var(--ease)}
.drawer-panel{
  position:absolute; top:0; right:0; width:88%; max-width:360px; height:100%;
  background:var(--surface); padding:24px 20px; transform:translateX(102%);
  transition:transform 280ms var(--ease); display:flex; flex-direction:column; gap:6px; overflow-y:auto;
}
.drawer-head{display:flex; align-items:center; justify-content:space-between; margin-bottom:12px}
.drawer-close{width:40px; height:40px; border-radius:var(--r-sm); border:1px solid var(--line); font-size:18px; color:var(--ink-700)}
.drawer-link{display:flex; align-items:center; height:52px; padding:0 14px; border-radius:var(--r-sm); font-size:15px; color:var(--ink-700)}
.drawer-link.is-active{background:var(--brand-50); color:var(--brand-700); font-weight:600}
.drawer-cta{margin-top:auto; padding-top:16px}
.drawer-cta .btn{width:100%}
.drawer.is-open{pointer-events:auto}
.drawer.is-open .drawer-mask{opacity:1}
.drawer.is-open .drawer-panel{transform:translateX(0)}

/* 分类页头 */
.page-hero{position:relative; background:var(--brand-900); overflow:hidden}
.page-hero::before{
  content:""; position:absolute; inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.42;
}
.page-hero::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(90deg, rgba(14,54,72,.94) 0%, rgba(14,54,72,.78) 52%, rgba(14,54,72,.44) 100%);
}
.page-hero .container{position:relative; z-index:2; padding-top:56px; padding-bottom:56px}
.breadcrumb{display:flex; flex-wrap:wrap; align-items:center; gap:8px; font-size:13px; color:rgba(255,255,255,.66); margin-bottom:24px}
.breadcrumb a{color:rgba(255,255,255,.78)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.55}
.breadcrumb .current{color:var(--accent-500)}
.page-hero h1{color:#fff; font-size:clamp(28px,3.6vw,42px); line-height:1.25; font-weight:700; letter-spacing:-.01em; max-width:760px}
.hero-lead{color:rgba(255,255,255,.82); font-size:16px; margin-top:16px; max-width:640px; line-height:1.8}
.hero-tags{display:flex; flex-wrap:wrap; gap:10px; margin-top:24px}
.tag{
  display:inline-flex; align-items:center; height:30px; padding:0 14px; border-radius:var(--r-pill);
  font-size:12px; font-weight:500; letter-spacing:.02em;
  background:rgba(255,255,255,.14); color:#fff; border:1px solid rgba(255,255,255,.24);
}

/* 板块 */
.section{padding:88px 0}
.section.alt{background:var(--surface)}
.section-head{display:flex; align-items:flex-end; justify-content:space-between; gap:24px; margin-bottom:32px}
.sec-title{position:relative; padding-left:16px; font-size:clamp(22px,2.4vw,30px); font-weight:700; line-height:1.3}
.sec-title::before{content:""; position:absolute; left:0; top:6px; bottom:6px; width:4px; border-radius:var(--r-pill); background:var(--brand-600)}
.sec-title .no{display:block; font-size:12px; font-weight:600; letter-spacing:.16em; color:var(--accent-ink); margin-bottom:4px}
.sec-sub{margin-top:10px; font-size:14px; color:var(--ink-500); padding-left:16px}

/* 检索与筛选 */
.filter-bar{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-md);
  padding:20px; box-shadow:var(--sh-1);
}
.field{display:flex; flex-direction:column; gap:8px}
.field label{font-size:13px; color:var(--ink-700); font-weight:500}
.input{
  height:48px; padding:0 14px; border:1px solid var(--line); border-radius:var(--r-sm);
  background:var(--surface); font-size:15px; width:100%; transition:border-color 200ms var(--ease), box-shadow 200ms var(--ease);
}
.input::placeholder{color:#93A5AD}
.input:focus{outline:none; border:2px solid var(--brand-600); box-shadow:0 0 0 3px rgba(30,108,140,.12)}
.input.is-error{border:2px solid var(--danger)}
.field-hint{font-size:13px; color:var(--ink-500)}
.chip-row{display:flex; flex-wrap:wrap; gap:10px; margin-top:18px}
.chip{
  display:inline-flex; align-items:center; height:34px; padding:0 16px; border-radius:var(--r-pill);
  background:var(--brand-50); color:var(--brand-700); font-size:12px; font-weight:500;
  border:1px solid transparent; transition:all 200ms var(--ease); cursor:pointer;
}
.chip:hover{background:var(--brand-600); color:#fff}
.chip.is-active{background:var(--brand-600); color:#fff; border-color:var(--brand-700)}

/* FAQ 手风琴 */
.faq-wrap{margin-top:32px; display:grid; gap:12px}
.faq-item{background:var(--surface); border:1px solid var(--line); border-radius:var(--r-md); overflow:hidden}
.faq-item[hidden]{display:none}
.faq-q{
  width:100%; min-height:56px; display:flex; align-items:center; justify-content:space-between; gap:16px;
  padding:12px 20px; text-align:left; font-size:15px; font-weight:600; color:var(--ink-900);
  transition:background 200ms var(--ease);
}
.faq-q:hover{background:var(--surface-2)}
.faq-q .q-tag{
  display:inline-flex; align-items:center; height:24px; padding:0 10px; margin-right:10px;
  border-radius:var(--r-pill); background:var(--accent-100); color:var(--accent-ink);
  font-size:12px; font-weight:500; vertical-align:middle;
}
.faq-ico{position:relative; flex:0 0 18px; width:18px; height:18px; color:var(--brand-600)}
.faq-ico::before,.faq-ico::after{content:""; position:absolute; background:currentColor; border-radius:2px}
.faq-ico::before{left:0; right:0; top:8px; height:2px}
.faq-ico::after{top:0; bottom:0; left:8px; width:2px; transition:transform 220ms var(--ease)}
.faq-item.is-open .faq-ico::after{transform:scaleY(0)}
.faq-a{max-height:0; overflow:hidden; transition:max-height 280ms var(--ease)}
.faq-a p{padding:0 20px 20px; color:var(--ink-700); line-height:1.8; font-size:15px}
.faq-item.is-open .faq-a{max-height:420px}
.faq-empty{
  margin-top:20px; min-height:120px; border-radius:var(--r-md); background:var(--surface-2);
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:12px;
  padding:24px; text-align:center; color:var(--ink-500); font-size:14px;
}
.faq-empty[hidden]{display:none}
.faq-empty .art{
  width:52px; height:44px; border-radius:10px; border:2px dashed var(--brand-200); background:var(--surface);
}
.faq-count{margin-top:14px; font-size:13px; color:var(--ink-500); font-variant-numeric:tabular-nums}

/* 自查卡 */
.quick-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:24px}
.quick-card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-md); padding:24px;
  box-shadow:var(--sh-1); transition:transform 200ms var(--ease), box-shadow 200ms var(--ease);
}
.quick-card:hover{transform:translateY(-3px); box-shadow:var(--sh-2)}
.quick-no{
  display:inline-flex; align-items:center; justify-content:center; width:34px; height:34px;
  border-radius:50%; background:var(--accent-100); color:var(--accent-ink); font-weight:700; font-size:13px;
  font-variant-numeric:tabular-nums;
}
.quick-card h3{margin-top:16px; font-size:18px; font-weight:600; line-height:1.45}
.quick-card p{margin-top:10px; font-size:14px; color:var(--ink-700); line-height:1.75}
.quick-card ul{margin-top:12px; display:grid; gap:8px}
.quick-card li{position:relative; padding-left:16px; font-size:13px; color:var(--ink-500)}
.quick-card li::before{content:""; position:absolute; left:0; top:9px; width:6px; height:6px; border-radius:50%; background:var(--brand-400)}

/* 快捷入口图文卡 */
.door-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:24px}
.door-card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-md); overflow:hidden;
  display:flex; flex-direction:column; box-shadow:var(--sh-1);
  transition:transform 200ms var(--ease), box-shadow 200ms var(--ease);
}
.door-card:hover{transform:translateY(-3px); box-shadow:var(--sh-2)}
.door-card .thumb{position:relative; aspect-ratio:3/2; overflow:hidden; background:var(--surface-2)}
.door-card .thumb img{width:100%; height:100%; object-fit:cover; transition:transform 400ms var(--ease)}
.door-card:hover .thumb img{transform:scale(1.04)}
.door-card .thumb .chip{position:absolute; left:14px; top:14px; background:rgba(255,255,255,.92)}
.door-body{padding:20px; display:flex; flex-direction:column; gap:10px; flex:1}
.door-body h3{font-size:19px; font-weight:600; line-height:1.45}
.door-body p{font-size:14px; color:var(--ink-700); display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden}
.door-body .link-arrow{margin-top:auto; font-size:14px}

/* 相关分类 */
.rel-box{background:var(--surface); border:1px solid var(--line); border-radius:var(--r-md); padding:28px; box-shadow:var(--sh-1)}
.rel-box h2{font-size:20px; font-weight:700}
.rel-box p{margin-top:8px; font-size:14px; color:var(--ink-500)}

/* CTA 色块 */
.cta-band{
  background-color:var(--brand-700);
  background-image:repeating-linear-gradient(135deg, rgba(255,255,255,.06) 0 2px, transparent 2px 12px);
  border-radius:var(--r-lg); padding:56px; display:flex; align-items:center; justify-content:space-between; gap:32px;
}
.cta-band h2{color:#fff; font-size:clamp(22px,2.6vw,30px); line-height:1.35; max-width:620px}
.cta-band p{color:rgba(255,255,255,.78); margin-top:12px; font-size:15px; max-width:560px}
.cta-actions{display:flex; gap:14px; flex-shrink:0}

/* 页脚 */
.site-footer{background:var(--brand-900); color:rgba(255,255,255,.78); margin-top:0; padding:64px 0 0}
.footer-grid{display:grid; grid-template-columns:1.5fr 1fr 1fr 1fr; gap:32px}
.footer-col{padding-right:24px; border-right:1px solid rgba(255,255,255,.12)}
.footer-col:last-child{border-right:0; padding-right:0}
.footer-desc{margin-top:16px; font-size:13px; line-height:1.85; color:rgba(255,255,255,.66)}
.footer-cta{margin-top:20px}
.footer-title{font-size:14px; font-weight:600; color:#fff; margin-bottom:16px}
.footer-links{display:grid; gap:12px}
.footer-links a{font-size:13px; color:rgba(255,255,255,.78)}
.footer-links a:hover{color:#fff; text-decoration:underline; text-decoration-color:var(--accent-500); text-underline-offset:4px}
.footer-bottom{
  margin-top:48px; border-top:1px solid rgba(255,255,255,.12); padding:20px 0 28px;
  display:flex; align-items:center; justify-content:space-between; gap:16px; font-size:13px; color:rgba(255,255,255,.62);
}
.footer-bottom a{color:rgba(255,255,255,.78)}
.footer-bottom a:hover{color:#fff}

/* 断点 */
@media (max-width:1199px){
  .quick-grid{grid-template-columns:repeat(2,1fr)}
  .door-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1023px){
  .section{padding:64px 0}
  .nav-tabs{display:none}
  .burger{display:inline-flex; align-items:center; justify-content:center}
  .page-hero .container{padding-top:44px; padding-bottom:44px}
  .cta-band{flex-direction:column; align-items:flex-start; padding:40px}
  .footer-grid{grid-template-columns:repeat(2,1fr); gap:28px}
  .footer-col{border-right:0; padding-right:0}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .nav-inner{height:62px}
  .nav-right .btn{display:none}
  .page-hero::after{background:linear-gradient(180deg, rgba(14,54,72,.92) 0%, rgba(14,54,72,.72) 100%)}
  .section-head{flex-direction:column; align-items:flex-start; gap:12px}
  .chip-row{flex-wrap:nowrap; overflow-x:auto; padding-bottom:6px; scrollbar-width:none}
  .chip-row::-webkit-scrollbar{display:none}
  .chip{flex:0 0 auto}
  .faq-q{min-height:52px; font-size:15px; padding:12px 16px}
  .faq-a p{padding:0 16px 18px}
  .quick-grid,.door-grid{grid-template-columns:1fr}
  .cta-actions{width:100%; flex-direction:column}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr; gap:0}
  .footer-col{border-bottom:1px solid rgba(255,255,255,.12); padding:18px 0}
  .footer-col:last-child{border-bottom:0}
  .footer-title{margin-bottom:10px}
  .footer-bottom{flex-direction:column; align-items:flex-start; gap:8px}
  .drawer-panel{padding:20px 16px}
}
@media (max-width:480px){
  .section{padding:48px 0}
  .page-hero h1{font-size:28px}
  .btn{width:100%}
  .btn.btn-sm{width:auto}
  .quick-card,.door-body{padding:16px}
  .rel-box{padding:20px}
}