/* roulang page: index */
:root{
  --brand:#2350C8;--brand-deep:#1A3E9E;--brand-soft:#E8EEFB;
  --teal:#12A594;--teal-soft:#E3F5F2;--amber:#E8963C;
  --ink:#101B33;--ink2:#4A5670;--ink3:#7B869C;
  --bg:#F6F8FC;--card:#FFFFFF;--soft:#F0F4FB;--line:#E4EAF4;--input:#CBD6E8;
  --r-lg:24px;--r-md:16px;--r-sm:12px;--r-btn:10px;
  --sh1:0 1px 2px rgba(16,27,51,.04),0 8px 24px -12px rgba(16,27,51,.14);
  --sh2:0 2px 6px rgba(16,27,51,.06),0 16px 36px -16px rgba(16,27,51,.20);
  --container:1200px;
  --t:180ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{display:block;max-width:100%}
a{color:var(--brand);text-decoration:none;transition:color var(--t),background var(--t),border-color var(--t),box-shadow var(--t),transform var(--t)}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:var(--brand-soft);color:var(--brand-deep)}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.sec{padding:88px 0}
.sec-soft{background:linear-gradient(180deg,#FBFCFE 0%,var(--soft) 100%)}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--ink);height:36px}
.topbar-in{height:36px;display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:13px;color:#C9D3E6}
.topbar-l{display:flex;align-items:center;gap:12px;min-width:0}
.tb-domain{color:#fff;font-weight:600;letter-spacing:.02em;white-space:nowrap}
.tb-tip{color:#93A3C2;white-space:nowrap}
.tb-tip::before{content:"";display:inline-block;width:1px;height:10px;background:#3A4A6E;margin-right:12px;vertical-align:middle}
.topbar-r{display:flex;align-items:center;gap:14px;white-space:nowrap}
.topbar-r a{color:#fff;font-weight:500}
.topbar-r a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.tb-sep{width:1px;height:10px;background:#3A4A6E}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid transparent;transition:border-color var(--t),box-shadow var(--t)}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:0 8px 24px -18px rgba(16,27,51,.45)}
.nav-in{height:72px;display:flex;align-items:center;gap:26px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:38px;height:38px;border-radius:12px;background:var(--brand);display:flex;align-items:center;justify-content:center;box-shadow:inset 0 0 0 1px rgba(255,255,255,.16);flex-shrink:0;transition:background var(--t),transform var(--t)}
.logo:hover .logo-mark{background:var(--brand-deep);transform:translateY(-1px)}
.logo-txt{display:flex;flex-direction:column;line-height:1.18}
.logo-name{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.01em}
.logo-sub{font-size:12px;color:var(--ink3)}
.nav-links{display:flex;align-items:center;gap:4px;flex:1;margin-left:6px}
.nav-links a{position:relative;display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:10px;font-size:15px;font-weight:500;color:var(--ink2)}
.nav-links a:hover{color:var(--brand);background:var(--brand-soft)}
.nav-links a.active{color:var(--brand);font-weight:600;background:transparent}
.nav-links a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;background:var(--brand)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--input);align-items:center;justify-content:center;background:#fff}
.nav-toggle:hover{background:var(--soft);border-color:rgba(35,80,200,.4)}
.drawer{position:fixed;inset:0;z-index:100;background:#fff;transform:translateX(100%);transition:transform 260ms cubic-bezier(.2,.7,.3,1);display:flex;flex-direction:column;padding:20px}
.drawer.open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{width:42px;height:42px;border-radius:10px;border:1px solid var(--input);display:flex;align-items:center;justify-content:center}
.drawer nav{display:flex;flex-direction:column;padding-top:12px}
.drawer nav a{height:52px;display:flex;align-items:center;padding:0 8px;font-size:16px;font-weight:500;color:var(--ink2);border-bottom:1px solid var(--line)}
.drawer nav a.active{color:var(--brand);font-weight:600}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;padding-top:20px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;padding:11px 22px;border-radius:var(--r-btn);border:1px solid transparent;transition:background var(--t),color var(--t),border-color var(--t),box-shadow var(--t),transform var(--t);white-space:nowrap}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh1)}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-primary:active{transform:none;box-shadow:var(--sh1)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--input)}
.btn-ghost:hover{background:var(--soft);border-color:rgba(35,80,200,.42);color:var(--brand-deep)}
.btn-ghost:active{background:var(--brand-soft)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-block{width:100%}
.tlink{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand)}
.tlink svg{transition:transform var(--t)}
.tlink:hover{text-decoration:underline;text-underline-offset:4px}
.tlink:hover svg{transform:translateX(2px)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:64px 0 76px;background:linear-gradient(180deg,#FBFCFE 0%,var(--bg) 100%)}
.hero::before{content:"";position:absolute;width:560px;height:560px;left:-200px;top:-220px;border-radius:50%;background:radial-gradient(circle,rgba(18,165,148,.10),transparent 68%)}
.hero::after{content:"";position:absolute;width:460px;height:460px;right:-160px;bottom:-220px;border-radius:50%;background:radial-gradient(circle,rgba(35,80,200,.10),transparent 70%)}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,55fr) minmax(0,45fr);gap:56px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand-deep);background:var(--brand-soft);border-radius:999px;padding:5px 14px;margin-bottom:20px}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--teal);display:inline-block}
.hero h1{font-size:clamp(30px,4.2vw,50px);line-height:1.25;font-weight:700;letter-spacing:-.01em;margin-bottom:18px}
.hero h1 .hl{color:var(--brand);position:relative;white-space:nowrap}
.hero-sub{font-size:17px;line-height:1.9;color:var(--ink2);max-width:560px;margin-bottom:28px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px}
.hero-metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--line);padding-top:22px;gap:8px}
.hm-item{position:relative;padding-right:14px}
.hm-item+.hm-item{padding-left:18px}
.hm-item+.hm-item::before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:1px;background:var(--line)}
.hm-item strong{display:block;font-size:20px;font-weight:700;color:var(--ink);line-height:1.4}
.hm-item span{display:block;font-size:13px;color:var(--ink3);line-height:1.6}
.hero-visual{position:relative}
.hero-figure{margin:0;border-radius:var(--r-md);overflow:hidden;aspect-ratio:4/3;box-shadow:var(--sh2);border:1px solid var(--line)}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-card{position:absolute;right:-6px;bottom:-26px;width:62%;max-width:300px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:18px 18px 16px;box-shadow:var(--sh2)}
.hc-title{font-size:13px;font-weight:700;color:var(--ink3);letter-spacing:.06em;margin-bottom:12px}
.hc-steps li{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;line-height:1.6;color:var(--ink2);padding:6px 0}
.hc-steps .dot{flex-shrink:0;width:20px;height:20px;border-radius:50%;background:var(--amber);color:#fff;font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:1px}

/* ---------- 区块标题 ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px}
.sec-head h2{font-size:clamp(24px,3vw,32px);line-height:1.35;font-weight:700;letter-spacing:-.01em}
.sec-kicker{font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--teal);margin-bottom:10px;text-transform:uppercase}
.sec-note{font-size:15px;line-height:1.8;color:var(--ink2);max-width:420px;text-align:right}

/* ---------- 功能分组 ---------- */
.feat-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:24px}
.feat-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:28px;box-shadow:var(--sh1);display:flex;flex-direction:column;transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.feat-card:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:rgba(35,80,200,.2)}
.feat-lg{grid-row:span 2}
.feat-wide{grid-column:1/-1;flex-direction:row;align-items:center;gap:24px}
.feat-wide .feat-main{flex:1}
.ico{width:46px;height:46px;border-radius:12px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;margin-bottom:18px;flex-shrink:0}
.ico-teal{background:var(--teal-soft);color:var(--teal)}
.feat-card h3{font-size:20px;line-height:1.5;font-weight:600;margin-bottom:10px}
.feat-card p{font-size:15px;line-height:1.85;color:var(--ink2);margin-bottom:16px}
.feat-card .tlink{margin-top:auto}
.feat-media{margin:0 0 20px;border-radius:var(--r-sm);overflow:hidden;aspect-ratio:16/9;border:1px solid var(--line)}
.feat-media img{width:100%;height:100%;object-fit:cover}
.feat-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto}
.tagpill{font-size:12px;font-weight:600;color:var(--teal);background:var(--teal-soft);border-radius:999px;padding:4px 12px}

/* ---------- 使用场景 ---------- */
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:28px;overflow-x:auto;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tab{position:relative;padding:14px 18px;font-size:15px;font-weight:600;color:var(--ink3);white-space:nowrap;transition:color var(--t)}
.tab::after{content:"";position:absolute;left:18px;right:18px;bottom:-1px;height:2px;border-radius:2px;background:transparent;transition:background var(--t)}
.tab:hover{color:var(--brand)}
.tab.active{color:var(--brand)}
.tab.active::after{background:var(--brand)}
.tab-panel{display:none;grid-template-columns:minmax(0,1fr) minmax(0,.86fr);gap:44px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:34px;box-shadow:var(--sh1)}
.tab-panel.active{display:grid}
.tab-panel h3{font-size:22px;font-weight:700;margin-bottom:12px}
.tab-panel .lead{font-size:15.5px;line-height:1.9;color:var(--ink2);margin-bottom:18px}
.checklist li{display:flex;gap:10px;font-size:14.5px;line-height:1.75;color:var(--ink2);padding:6px 0}
.checklist .ck{flex-shrink:0;width:20px;height:20px;border-radius:50%;background:var(--teal-soft);color:var(--teal);display:flex;align-items:center;justify-content:center;margin-top:2px}
.tab-media{margin:0;border-radius:var(--r-sm);overflow:hidden;aspect-ratio:4/3;border:1px solid var(--line)}
.tab-media img{width:100%;height:100%;object-fit:cover}

/* ---------- 成功案例 ---------- */
.case-row{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.case-row+.case-row{margin-top:64px}
.case-row.reverse .case-media{order:2}
.case-media{margin:0;border-radius:var(--r-md);overflow:hidden;aspect-ratio:16/10;border:1px solid var(--line);box-shadow:var(--sh1)}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms cubic-bezier(.2,.7,.3,1)}
.case-row:hover .case-media img{transform:scale(1.03)}
.case-badges{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.badge{display:inline-flex;align-items:center;font-size:12px;font-weight:600;color:var(--brand);background:var(--brand-soft);border-radius:999px;padding:4px 12px}
.badge-teal{color:var(--teal);background:var(--teal-soft)}
.case-row h3{font-size:22px;font-weight:700;line-height:1.5;margin-bottom:12px}
.case-row p{font-size:15px;line-height:1.9;color:var(--ink2);margin-bottom:20px}
.case-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:20px}
.case-stats strong{display:block;font-size:26px;font-weight:700;color:var(--brand);line-height:1.3}
.case-stats span{font-size:12.5px;color:var(--ink3);line-height:1.6}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:start}
.price-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:28px;box-shadow:var(--sh1);display:flex;flex-direction:column;transition:transform var(--t),box-shadow var(--t)}
.price-card:hover{box-shadow:var(--sh2);transform:translateY(-2px)}
.price-card.featured{border-color:var(--brand);box-shadow:var(--sh2);transform:translateY(-12px)}
.price-card.featured:hover{transform:translateY(-14px)}
.price-badge{position:absolute;top:-12px;right:20px;background:var(--amber);color:#fff;font-size:12px;font-weight:700;border-radius:999px;padding:4px 12px}
.price-name{font-size:18px;font-weight:700;margin-bottom:6px}
.price-desc{font-size:13.5px;color:var(--ink3);line-height:1.7;margin-bottom:18px;min-height:44px}
.price-amount{display:flex;align-items:baseline;gap:6px;margin-bottom:20px}
.price-amount strong{font-size:34px;font-weight:700;color:var(--ink);line-height:1}
.price-amount em{font-style:normal;font-size:13px;color:var(--ink3)}
.price-list{border-top:1px solid var(--line);padding-top:18px;margin-bottom:22px}
.price-list li{display:flex;gap:10px;font-size:14.5px;color:var(--ink2);line-height:1.7;padding:6px 0}
.price-list .ck{flex-shrink:0;color:var(--teal);margin-top:2px}
.price-actions{display:flex;flex-direction:column;gap:10px;margin-top:auto}
.price-note{font-size:12px;color:var(--ink3);text-align:center;margin-top:26px}

/* ---------- 资讯列表 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh1);display:flex;flex-direction:column;transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh2);border-color:rgba(35,80,200,.2)}
.post-cover{display:block;aspect-ratio:16/9;overflow:hidden;background:rgba(35,80,200,.08);border-bottom:1px solid var(--line)}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform 420ms cubic-bezier(.2,.7,.3,1)}
.post-card:hover .post-cover img{transform:scale(1.04)}
.post-cover-ph{display:flex;width:100%;height:100%;align-items:center;justify-content:center;background:rgba(35,80,200,.08)}
.post-cover-ph::after{content:"";width:54px;height:54px;border-radius:50%;border:2px solid rgba(35,80,200,.28);box-shadow:0 0 0 10px rgba(35,80,200,.06)}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.post-meta{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.post-time{font-size:13px;color:var(--ink3)}
.post-title{font-size:18px;font-weight:600;line-height:1.5;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-title a{color:var(--ink)}
.post-title a:hover{color:var(--brand)}
.post-excerpt{font-size:14px;line-height:1.75;color:var(--ink2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px}
.post-body .tlink{margin-top:auto;font-size:14px}
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;background:#fff;border:1px dashed var(--line);border-radius:var(--r-md);padding:64px 24px}
.empty-state svg{color:var(--ink3);margin-bottom:16px}
.empty-state strong{font-size:17px;font-weight:600;margin-bottom:6px}
.empty-state p{font-size:14px;color:var(--ink3);margin-bottom:20px}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:minmax(0,.72fr) minmax(0,1.28fr);gap:56px;align-items:start}
.faq-side h2{font-size:clamp(24px,3vw,32px);font-weight:700;line-height:1.35;margin-bottom:14px}
.faq-side p{font-size:15px;line-height:1.9;color:var(--ink2);margin-bottom:20px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;transition:border-color var(--t),box-shadow var(--t),background var(--t)}
.faq-item[open]{background:#FCFDFF;border-color:rgba(35,80,200,.28);box-shadow:var(--sh1)}
.faq-item summary{position:relative;list-style:none;cursor:pointer;padding:18px 52px 18px 22px;font-size:16px;font-weight:600;line-height:1.6;transition:color var(--t)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:0 3px 3px 0;background:transparent;transition:background var(--t)}
.faq-item[open] summary{color:var(--brand-deep)}
.faq-item[open] summary::before{background:var(--brand)}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary::after{content:"";position:absolute;right:22px;top:50%;width:10px;height:10px;border-right:1.6px solid var(--ink3);border-bottom:1.6px solid var(--ink3);transform:translateY(-70%) rotate(45deg);transition:transform var(--t)}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq-answer{padding:0 22px 20px;font-size:14px;line-height:1.9;color:var(--ink2)}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--brand-soft);border-radius:var(--r-lg);padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-band::before,.cta-band::after{content:"";position:absolute;border-radius:50%;border:1px solid rgba(35,80,200,.16)}
.cta-band::before{width:320px;height:320px;right:-120px;top:-160px}
.cta-band::after{width:460px;height:460px;right:-200px;bottom:-320px}
.cta-copy{position:relative;z-index:1}
.cta-copy h2{font-size:clamp(22px,2.6vw,28px);font-weight:700;line-height:1.4;margin-bottom:8px}
.cta-copy p{font-size:15px;color:var(--ink2)}
.cta-actions{position:relative;z-index:1;display:flex;align-items:center;gap:18px;flex-shrink:0}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#C9D3E6;padding:64px 0 0;margin-top:88px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.foot-brand .logo-mark{background:var(--brand)}
.foot-brand .logo-name{color:#fff}
.foot-brand .logo-sub{color:#8FA0C0}
.foot-brand p{font-size:14px;line-height:1.9;color:#93A3C2;margin-top:16px;max-width:330px}
.foot-domain{display:inline-block;margin-top:14px;font-size:13px;font-weight:600;color:#fff;background:rgba(255,255,255,.08);border-radius:999px;padding:4px 14px}
.foot-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.04em}
.foot-col li{margin-bottom:10px}
.foot-col a{font-size:14px;color:#93A3C2}
.foot-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.foot-col span{font-size:14px;color:#93A3C2}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#7C8CAB}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .sec{padding:64px 0}
  .nav-links{display:none}
  .nav-actions{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .nav-in{gap:12px}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero{padding:44px 0 64px}
  .hero-card{position:static;width:100%;max-width:none;margin-top:16px}
  .feat-grid{grid-template-columns:1fr}
  .feat-lg{grid-row:auto}
  .feat-wide{flex-direction:column;align-items:flex-start}
  .tab-panel{grid-template-columns:1fr;gap:24px;padding:26px}
  .case-row{grid-template-columns:1fr;gap:28px}
  .case-row.reverse .case-media{order:0}
  .case-row+.case-row{margin-top:48px}
  .faq-grid{grid-template-columns:1fr;gap:32px}
  .price-grid{grid-template-columns:1fr;gap:20px}
  .price-card.featured{transform:none}
  .price-card.featured:hover{transform:translateY(-2px)}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 28px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px}
  .sec-note{text-align:left;max-width:none}
}
@media (max-width:767px){
  .wrap{padding:0 20px}
  .hero-metrics{grid-template-columns:repeat(2,1fr);gap:16px}
  .hm-item{padding-right:0}
  .hm-item+.hm-item{padding-left:0}
  .hm-item+.hm-item::before{display:none}
  .topbar-r .tb-serv{display:none}
  .tb-tip{display:none}
  .logosub{}
  .case-stats{grid-template-columns:repeat(3,1fr);gap:8px}
  .case-stats strong{font-size:22px}
}
@media (max-width:639px){
  .sec{padding:48px 0}
  .post-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .logo-sub{display:none}
  .hero-cta .btn{flex:1}
  .cta-actions{width:100%;flex-direction:column;align-items:stretch;gap:12px}
  .cta-actions .btn{width:100%}
}

/* roulang page: article */
:root{
  --container:1200px;
  --brand:#2350C8;
  --brand-dark:#1A3E9E;
  --brand-soft:#E8EEFB;
  --teal:#12A594;
  --teal-soft:#E3F5F2;
  --amber:#E8963C;
  --ink:#101B33;
  --ink-2:#4A5670;
  --ink-3:#7B869C;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --block:#F0F4FB;
  --line:#E4EAF4;
  --input:#CBD6E8;
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(16,27,51,.04),0 8px 24px -12px rgba(16,27,51,.14);
  --sh-2:0 2px 6px rgba(16,27,51,.06),0 16px 36px -16px rgba(16,27,51,.20);
  --t:180ms 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","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.85;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 顶部信息条 ---------- */
.topbar{background:#0E1729;color:#C9D3E6;font-size:13px}
.topbar-in{display:flex;align-items:center;justify-content:space-between;gap:18px;height:36px}
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0}
.topbar-dot{width:6px;height:6px;border-radius:50%;background:var(--teal);flex:none;box-shadow:0 0 0 3px rgba(18,165,148,.18)}
.topbar-domain{color:#fff;font-weight:600;letter-spacing:.02em}
.topbar-hint{color:#8FA1BF;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-right{display:flex;align-items:center;gap:12px;color:#9FB0CC;white-space:nowrap}
.topbar-right a{color:#fff;transition:color var(--t)}
.topbar-right a:hover{color:#8FB4FF}
.topbar-sep{width:1px;height:12px;background:rgba(201,211,230,.28)}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;transition:box-shadow var(--t)}
.site-header.scrolled{box-shadow:0 1px 0 var(--line),0 10px 28px -20px rgba(16,27,51,.55)}
.nav-in{display:flex;align-items:center;gap:20px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,#2350C8,#1A3E9E);display:grid;place-items:center;flex:none}
.logo-name{display:block;font-size:17px;font-weight:700;line-height:1.2;letter-spacing:-.01em;color:var(--ink)}
.logo-sub{display:block;font-size:12px;line-height:1.4;letter-spacing:.05em;color:var(--ink-3)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:14px}
.nav-links a{position:relative;padding:8px 12px;border-radius:8px;font-size:15px;font-weight:500;color:var(--ink-2);transition:color var(--t),background-color var(--t)}
.nav-links a:hover{color:var(--brand);background:var(--brand-soft)}
.nav-links a.active{color:var(--brand);font-weight:600}
.nav-links a.active::after{content:"";position:absolute;left:12px;right:12px;bottom:-2px;height:2px;border-radius:2px;background:var(--brand)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;margin-left:auto;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:#fff;align-items:center;justify-content:center;cursor:pointer;transition:border-color var(--t),background-color var(--t)}
.nav-toggle:hover{border-color:var(--input);background:var(--block)}
.nav-toggle:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- 抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:120;background:#fff;padding:20px;display:flex;flex-direction:column;gap:18px;
  transform:translateY(-100%);visibility:hidden;transition:transform 260ms cubic-bezier(.2,.7,.3,1),visibility 260ms}
.drawer.open{transform:translateY(0);visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--line)}
.drawer-title{font-size:15px;font-weight:600;color:var(--ink)}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:#fff;font-size:20px;line-height:1;color:var(--ink-2);cursor:pointer;transition:background-color var(--t)}
.drawer-close:hover{background:var(--block)}
.drawer-links{display:flex;flex-direction:column}
.drawer-links a{display:flex;align-items:center;height:52px;font-size:16px;color:var(--ink-2);border-bottom:1px solid var(--line);transition:color var(--t)}
.drawer-links a:hover{color:var(--brand)}
.drawer-cta{margin-top:auto}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;
  padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;cursor:pointer;
  transition:background-color var(--t),color var(--t),border-color var(--t),box-shadow var(--t),transform var(--t)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--input)}
.btn-ghost:hover{border-color:rgba(35,80,200,.45);background:var(--block)}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn:disabled{opacity:.4;cursor:not-allowed}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:22px 0 0}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--ink-3)}
.breadcrumb a{color:var(--ink-3);transition:color var(--t)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#C3CCDD}
.breadcrumb .current{color:var(--ink-2);max-width:460px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章布局 ---------- */
.article-wrap{padding:24px 0 72px}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start}
.article-head h1{font-size:clamp(28px,3.4vw,40px);line-height:1.35;font-weight:700;letter-spacing:-.01em;color:var(--ink);margin-bottom:18px}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:12px;font-size:13px;color:var(--ink-3)}
.meta-div{width:1px;height:12px;background:var(--line)}
.badge-cat{display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:600;background:var(--brand-soft);color:var(--brand)}
.badge-teal{background:var(--teal-soft);color:#0E8C7E}

.notice-bar{display:flex;align-items:center;gap:10px;margin:22px 0 0;padding:12px 16px;border-radius:var(--r-sm);
  background:#fff;border:1px solid var(--line);font-size:14px;color:var(--ink-2);box-shadow:var(--sh-1)}
.pulse{width:8px;height:8px;border-radius:50%;background:var(--teal);flex:none;position:relative}
.pulse::after{content:"";position:absolute;inset:-4px;border-radius:50%;border:1px solid rgba(18,165,148,.45);animation:pulse 2.2s ease-out infinite}
@keyframes pulse{0%{transform:scale(.7);opacity:.9}70%{transform:scale(1.6);opacity:0}100%{opacity:0}}

/* ---------- 正文排版 ---------- */
.prose{margin-top:32px;font-size:16px;line-height:1.9;color:var(--ink-2)}
.prose>*:first-child{margin-top:0}
.prose p{margin:0 0 20px}
.prose h2{position:relative;font-size:22px;line-height:1.5;font-weight:700;color:var(--ink);margin:40px 0 16px;padding-left:14px}
.prose h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--brand)}
.prose h3{font-size:18px;line-height:1.5;font-weight:600;color:var(--ink);margin:30px 0 12px}
.prose h4{font-size:16px;font-weight:600;color:var(--ink);margin:24px 0 10px}
.prose ul,.prose ol{margin:0 0 20px;padding-left:0;list-style:none}
.prose ul li{position:relative;padding-left:20px;margin-bottom:10px}
.prose ul li::before{content:"";position:absolute;left:2px;top:12px;width:6px;height:6px;border-radius:50%;background:var(--teal)}
.prose ol{counter-reset:item}
.prose ol li{position:relative;padding-left:28px;margin-bottom:10px;counter-increment:item}
.prose ol li::before{content:counter(item);position:absolute;left:0;top:4px;width:20px;height:20px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:700;display:grid;place-items:center;line-height:1}
.prose blockquote{margin:0 0 24px;padding:16px 20px;font-size:15px;line-height:1.9;color:var(--ink-2);
  background:var(--brand-soft);border-left:3px solid var(--brand);border-radius:0 var(--r-sm) var(--r-sm) 0}
.prose figure{margin:0 0 24px;text-align:center}
.prose img{margin:0 auto 12px;border-radius:var(--r-sm);border:1px solid var(--line)}
.prose figcaption{font-size:13px;color:var(--ink-3)}
.prose table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;margin:0 0 24px;font-size:15px}
.prose th,.prose td{border:1px solid var(--line);padding:10px 14px;text-align:left;min-width:110px}
.prose thead th{background:var(--block);color:var(--ink);font-weight:600}
.prose tbody tr:nth-child(even){background:#FAFBFE}
.prose a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.prose a:hover{color:var(--brand-dark)}
.prose strong{color:var(--ink);font-weight:600}

/* ---------- 侧栏 ---------- */
.article-aside{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.aside-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:22px;box-shadow:var(--sh-1)}
.aside-card h3{font-size:16px;font-weight:600;color:var(--ink);margin-bottom:16px}
.step-list{list-style:none;display:flex;flex-direction:column;gap:16px}
.step-list li{display:flex;gap:12px}
.step-num{flex:none;width:26px;height:26px;border-radius:50%;background:var(--brand-soft);color:var(--brand);
  font-size:13px;font-weight:700;display:grid;place-items:center;line-height:1}
.step-list strong{display:block;font-size:14px;font-weight:600;color:var(--ink);line-height:1.5;margin-bottom:2px}
.step-list p{font-size:13px;line-height:1.7;color:var(--ink-3)}
.aside-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 14px;border-radius:var(--r-sm);
  background:var(--block);font-size:14px;font-weight:500;color:var(--ink-2);margin-bottom:10px;
  transition:background-color var(--t),color var(--t),transform var(--t)}
.aside-links a:last-child{margin-bottom:0}
.aside-links a:hover{background:var(--brand-soft);color:var(--brand);transform:translateX(2px)}
.aside-links a span{color:var(--brand);flex:none}

/* ---------- 文末 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:40px 0 28px;padding-top:26px;border-top:1px solid var(--line)}
.tag{display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;font-size:12px;font-weight:500;
  background:var(--block);color:var(--ink-2);transition:background-color var(--t),color var(--t)}
.tag:hover{background:var(--brand-soft);color:var(--brand)}
.np-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:8px}
.np-card{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:20px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);
  transition:border-color var(--t),box-shadow var(--t),transform var(--t)}
.np-card:hover{border-color:#C9D8F5;box-shadow:var(--sh-2);transform:translateY(-2px)}
.np-card .np-label{display:block;font-size:12px;color:var(--ink-3);margin-bottom:4px}
.np-card .np-title{display:block;font-size:15px;font-weight:600;color:var(--ink);line-height:1.5}
.np-arrow{color:var(--brand);font-size:18px;flex:none;transition:transform var(--t)}
.np-card:hover .np-arrow{transform:translateX(3px)}

.empty-article{text-align:center;padding:72px 24px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1)}
.empty-icon{width:56px;height:56px;margin:0 auto 20px;border-radius:50%;background:var(--brand-soft);display:grid;place-items:center;color:var(--brand)}
.empty-article h2{font-size:22px;font-weight:700;color:var(--ink);margin-bottom:10px}
.empty-article p{font-size:15px;color:var(--ink-3);margin-bottom:24px}

/* ---------- 继续查看 ---------- */
.more-section{padding:0 0 88px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap}
.section-head h2{font-size:clamp(22px,2.6vw,28px);font-weight:700;color:var(--ink);letter-spacing:-.01em}
.section-head p{font-size:14px;color:var(--ink-3);margin-top:6px}
.rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rec-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);transition:box-shadow var(--t),transform var(--t),border-color var(--t)}
.rec-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:#C9D8F5}
.rec-media{aspect-ratio:16/9;overflow:hidden;background:var(--brand-soft);border-bottom:1px solid var(--line)}
.rec-media img{width:100%;height:100%;object-fit:cover;transition:transform 400ms cubic-bezier(.2,.7,.3,1)}
.rec-card:hover .rec-media img{transform:scale(1.04)}
.rec-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:8px;flex:1}
.rec-body .badge-cat{align-self:flex-start}
.rec-body h3{font-size:17px;font-weight:600;line-height:1.5;color:var(--ink)}
.rec-body p{font-size:14px;line-height:1.75;color:var(--ink-3);flex:1}
.rec-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
.rec-link::after{content:"→";transition:transform var(--t)}
.rec-card:hover .rec-link::after{transform:translateX(3px)}

/* ---------- 页脚 ---------- */
.site-footer{background:#0E1729;color:#C9D3E6;padding:64px 0 0}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.foot-brand .logo-name{color:#fff}
.foot-brand .logo-sub{color:#93A5C2}
.foot-brand p{font-size:14px;line-height:1.85;color:#9FB0CC;margin:18px 0 14px;max-width:340px}
.foot-domain{font-size:13px;color:#7E8FAB;letter-spacing:.03em}
.foot-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.foot-col ul{list-style:none;display:flex;flex-direction:column;gap:11px}
.foot-col a,.foot-col span{font-size:14px;line-height:1.7;color:#9FB0CC;transition:color var(--t)}
.foot-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.foot-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(201,211,230,.16);padding:20px 0 28px;font-size:13px;color:#7E8FAB}

/* ---------- 响应式 ---------- */
@media (max-width:1099px){
  .article-grid{grid-template-columns:minmax(0,1fr) 280px;gap:32px}
}
@media (max-width:1023px){
  .nav-links,.nav-actions{display:none}
  .nav-toggle{display:flex}
  .article-grid{grid-template-columns:1fr;gap:36px}
  .article-aside{position:static;top:auto;flex-direction:row;flex-wrap:wrap}
  .article-aside .aside-card{flex:1 1 300px}
  .rec-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .article-wrap{padding-bottom:56px}
  .more-section{padding-bottom:64px}
}
@media (max-width:767px){
  .wrap{padding:0 20px}
  .topbar-hint,.topbar-right{display:none}
  .breadcrumb .current{max-width:200px}
  .article-head h1{font-size:26px}
  .prose{font-size:16px}
  .prose h2{font-size:20px;margin-top:32px}
  .prose table{font-size:14px}
  .np-grid{grid-template-columns:1fr}
  .article-aside{flex-direction:column}
  .article-aside .aside-card{flex:1 1 auto}
  .rec-grid{grid-template-columns:1fr}
  .notice-bar{align-items:flex-start}
  .notice-bar .pulse{margin-top:8px}
}
@media (max-width:520px){
  .nav-in{height:64px;gap:12px}
  .logo-mark{width:34px;height:34px;border-radius:10px}
  .logo-name{font-size:15px}
  .logo-sub{font-size:11px}
  .foot-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .site-footer{padding-top:48px}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .article-meta{gap:10px;font-size:12px}
  .tag-row{margin-top:32px}
}

/* roulang page: category1 */
:root{
  --primary:#2350C8;
  --primary-deep:#1A3E9E;
  --primary-tint:#E8EEFB;
  --teal:#12A594;
  --teal-tint:#E3F5F2;
  --amber:#E8963C;
  --ink:#101B33;
  --ink-2:#4A5670;
  --ink-3:#7B869C;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --soft:#F0F4FB;
  --line:#E4EAF4;
  --input-line:#CBD6E8;
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --r-btn:10px;
  --shadow-1:0 1px 2px rgba(16,27,51,.04),0 8px 24px -12px rgba(16,27,51,.14);
  --shadow-2:0 2px 6px rgba(16,27,51,.06),0 16px 36px -16px rgba(16,27,51,.20);
  --container:1200px;
  --nav-h:72px;
  --t:180ms 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","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;color:var(--ink);background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:80px 0;}
.section-soft{background:var(--soft);}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--primary);background:var(--primary-tint);padding:4px 10px;border-radius:999px;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.sec-head h2{font-size:clamp(24px,3vw,32px);line-height:1.35;font-weight:700;letter-spacing:-.3px;margin-top:12px;}
.sec-head p{font-size:14px;color:var(--ink-3);max-width:420px;line-height:1.8;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--primary);transition:color var(--t);}
.link-arrow span{transition:transform var(--t);}
.link-arrow:hover{color:var(--primary-deep);}
.link-arrow:hover span{transform:translateX(2px);}
.link-arrow:hover .txt{text-decoration:underline;text-underline-offset:4px;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:#101B33;color:#C9D3E6;font-size:13px;}
.topbar-in{display:flex;align-items:center;justify-content:space-between;gap:16px;height:36px;}
.topbar-left,.topbar-right{display:flex;align-items:center;gap:10px;min-width:0;}
.topbar-dot{width:6px;height:6px;border-radius:50%;background:var(--teal);flex:none;box-shadow:0 0 0 3px rgba(18,165,148,.22);}
.topbar-domain{color:#fff;font-weight:600;letter-spacing:.02em;}
.topbar-tip{color:#9FB0CE;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-right a{color:#C9D3E6;transition:color var(--t);}
.topbar-right a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.topbar-sep{color:#3A4864;}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid transparent;transition:box-shadow var(--t),border-color var(--t);}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:var(--shadow-1);}
.nav-in{display:flex;align-items:center;gap:20px;height:var(--nav-h);}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;flex:none;}
.logo-mark{width:38px;height:38px;border-radius:10px;background:linear-gradient(140deg,#2350C8 10%,#12A594 100%);display:grid;place-items:center;box-shadow:0 8px 18px -10px rgba(35,80,200,.9);flex:none;}
.logo-txt{display:flex;flex-direction:column;line-height:1.2;}
.logo-name{font-size:16px;font-weight:700;color:var(--ink);letter-spacing:.02em;}
.logo-sub{font-size:12px;color:var(--ink-3);margin-top:2px;}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-links a{position:relative;display:inline-flex;align-items:center;height:var(--nav-h);padding:0 14px;font-size:15px;color:var(--ink-2);transition:color var(--t);white-space:nowrap;}
.nav-links a:hover{color:var(--primary);}
.nav-links a.active{color:var(--primary);font-weight:600;}
.nav-links a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;border-radius:2px;background:var(--primary);}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:16px;flex:none;}
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--input-line);background:#fff;align-items:center;justify-content:center;cursor:pointer;transition:background-color var(--t),border-color var(--t);}
.nav-toggle:hover{background:var(--soft);border-color:#B9C7E2;}
.nav-toggle:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;transition:background-color var(--t),color var(--t),border-color var(--t),box-shadow var(--t),transform var(--t);text-decoration:none;}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--input-line);}
.btn-ghost:hover{border-color:rgba(35,80,200,.45);background:var(--soft);color:var(--primary-deep);}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{position:fixed;inset:0;z-index:80;background:#fff;display:none;flex-direction:column;padding:20px;}
.mobile-drawer.open{display:flex;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-close{width:42px;height:42px;border-radius:10px;border:1px solid var(--input-line);background:#fff;cursor:pointer;display:grid;place-items:center;}
.drawer-nav{margin-top:8px;flex:1;}
.drawer-nav a{display:flex;align-items:center;height:52px;font-size:16px;color:var(--ink-2);border-bottom:1px solid var(--line);}
.drawer-nav a.active{color:var(--primary);font-weight:600;}
.drawer-foot{display:grid;gap:10px;padding-top:16px;}

/* ---------- 页面 Hero ---------- */
.page-hero{padding-top:48px;background:
  radial-gradient(880px 420px at 88% -14%,rgba(18,165,148,.10),transparent 70%),
  radial-gradient(720px 380px at 2% 0%,rgba(35,80,200,.10),transparent 72%),
  #fff;
  border-bottom:1px solid var(--line);overflow:hidden;}
.hero-grid{display:grid;grid-template-columns:1.24fr .86fr;gap:48px;align-items:center;padding-bottom:36px;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);margin-bottom:18px;flex-wrap:wrap;}
.breadcrumb a{color:var(--ink-3);transition:color var(--t);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:#BAC6DC;}
.breadcrumb .cur{color:var(--ink-2);}
.page-hero h1{font-size:clamp(30px,3.6vw,44px);line-height:1.26;font-weight:700;letter-spacing:-.6px;margin-top:16px;}
.page-hero h1 em{font-style:normal;color:var(--primary);}
.hero-lead{margin-top:18px;font-size:17px;line-height:1.85;color:var(--ink-2);max-width:560px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-figure{position:relative;}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-md);border:1px solid var(--line);box-shadow:var(--shadow-1);}
.hero-figure figcaption{position:absolute;left:16px;bottom:16px;background:rgba(16,27,51,.84);color:#E7EEFB;font-size:12px;padding:6px 12px;border-radius:999px;}
.hero-points{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);}
.hero-points li{display:flex;gap:10px;align-items:flex-start;padding:18px 20px 20px 0;font-size:14px;line-height:1.7;color:var(--ink-2);border-right:1px solid var(--line);}
.hero-points li:last-child{border-right:0;}
.hero-points li + li{padding-left:20px;}
.check-ico{flex:none;width:18px;height:18px;margin-top:3px;color:var(--teal);}

/* ---------- 锚点条 ---------- */
.anchor-bar{position:sticky;top:var(--nav-h);z-index:50;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);}
.anchor-in{display:flex;align-items:center;gap:6px;height:56px;overflow-x:auto;scrollbar-width:none;}
.anchor-in::-webkit-scrollbar{display:none;}
.anchor-in a{position:relative;display:inline-flex;align-items:center;height:56px;padding:0 14px;font-size:14px;color:var(--ink-2);white-space:nowrap;transition:color var(--t);}
.anchor-in a:hover{color:var(--primary);}
.anchor-in a.active{color:var(--primary);font-weight:600;}
.anchor-in a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;background:var(--primary);border-radius:2px;}

/* ---------- 主体两栏 ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:36px;align-items:start;}
.flow-list{display:grid;gap:20px;}
.flow-item{display:grid;grid-template-columns:200px minmax(0,1fr);gap:24px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:20px;transition:box-shadow var(--t),transform var(--t),border-color var(--t);}
.flow-item:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:#D5E0F2;}
.flow-item img{width:200px;height:140px;object-fit:cover;border-radius:var(--r-sm);border:1px solid var(--line);}
.flow-body h3{font-size:18px;font-weight:600;line-height:1.5;margin-top:10px;}
.flow-body p{margin-top:8px;font-size:14px;line-height:1.8;color:var(--ink-2);}
.flow-body ul{margin-top:10px;display:flex;flex-wrap:wrap;gap:8px 16px;}
.flow-body ul li{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--ink-3);}
.flow-body ul li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--teal);flex:none;}
.pill{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px;background:var(--primary-tint);color:var(--primary);}
.pill-teal{background:var(--teal-tint);color:#0E7F72;}

/* ---------- 侧栏 ---------- */
.side-col{display:grid;gap:20px;position:sticky;top:calc(var(--nav-h) + 76px);}
.form-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:24px;box-shadow:var(--shadow-1);}
.form-card h3{font-size:18px;font-weight:600;line-height:1.5;}
.form-card .hint{margin-top:8px;font-size:13px;line-height:1.7;color:var(--ink-3);}
.consult-form{margin-top:18px;display:grid;gap:12px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink-2);margin-bottom:6px;}
.field input,.field select,.field textarea{width:100%;height:44px;border-radius:10px;border:1px solid var(--input-line);background:#fff;padding:0 12px;font-size:14px;color:var(--ink);transition:border-color var(--t),box-shadow var(--t),background-color var(--t);appearance:none;}
.field select{background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%237B869C' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:34px;}
.field textarea{height:96px;padding:10px 12px;line-height:1.7;resize:vertical;}
.field input:hover,.field select:hover,.field textarea:hover{border-color:#B9C7E2;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(35,80,200,.16);}
.field input::placeholder,.field textarea::placeholder{color:#9AA6BE;}
.privacy{margin-top:12px;font-size:12px;line-height:1.7;color:var(--ink-3);}
.form-note{margin-top:12px;font-size:13px;line-height:1.7;color:#0E7F72;background:var(--teal-tint);border-radius:10px;padding:10px 12px;display:none;}
.form-note.show{display:block;}
.side-block{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:22px;}
.side-block h4{font-size:15px;font-weight:600;margin-bottom:14px;}
.side-links{display:grid;gap:2px;}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;border-radius:10px;font-size:14px;color:var(--ink-2);transition:background-color var(--t),color var(--t);}
.side-links a:hover{background:var(--soft);color:var(--primary);}
.side-links a span.arrow{color:var(--ink-3);transition:transform var(--t),color var(--t);}
.side-links a:hover span.arrow{transform:translateX(2px);color:var(--primary);}
.contact-list{display:grid;gap:12px;}
.contact-list li{display:flex;gap:10px;font-size:14px;line-height:1.7;color:var(--ink-2);}
.contact-list .ico{flex:none;width:18px;height:18px;margin-top:4px;color:var(--primary);}

/* ---------- 步骤区 ---------- */
.step-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.step-card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:28px 24px;transition:box-shadow var(--t),transform var(--t),border-color var(--t);}
.step-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:#D5E0F2;}
.step-num{font-size:40px;line-height:1;font-weight:700;color:rgba(35,80,200,.16);letter-spacing:-.04em;}
.step-card h3{font-size:18px;font-weight:600;margin-top:12px;}
.step-card p{margin-top:8px;font-size:14px;line-height:1.85;color:var(--ink-2);}
.step-tag{position:absolute;top:24px;right:24px;}

/* ---------- 自查清单 ---------- */
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.check-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:24px;transition:box-shadow var(--t),border-color var(--t);}
.check-card:hover{box-shadow:var(--shadow-1);border-color:#D5E0F2;}
.check-card .head{display:flex;align-items:center;gap:10px;}
.check-card .head .dot{width:8px;height:8px;border-radius:50%;background:var(--amber);flex:none;}
.check-card h3{font-size:16px;font-weight:600;}
.check-card p{margin-top:10px;font-size:14px;line-height:1.85;color:var(--ink-2);}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:.72fr 1.28fr;gap:48px;align-items:start;}
.faq-intro h2{font-size:clamp(24px,3vw,32px);line-height:1.35;font-weight:700;letter-spacing:-.3px;margin-top:12px;}
.faq-intro p{margin-top:14px;font-size:14px;line-height:1.85;color:var(--ink-2);}
.faq-intro .link-arrow{margin-top:20px;}
.faq-list{display:grid;gap:12px;}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;transition:border-color var(--t),box-shadow var(--t),background-color var(--t);}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;font-size:16px;font-weight:600;color:var(--ink);cursor:pointer;list-style:none;transition:color var(--t);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-item summary:focus-visible{outline:2px solid var(--primary);outline-offset:-2px;}
.faq-item .sign{flex:none;width:24px;height:24px;border-radius:50%;border:1px solid var(--input-line);display:grid;place-items:center;color:var(--ink-3);transition:transform var(--t),background-color var(--t),color var(--t),border-color var(--t);}
.faq-item[open]{border-left:3px solid var(--primary);background:#FCFDFF;box-shadow:var(--shadow-1);}
.faq-item[open] .sign{transform:rotate(45deg);background:var(--primary);border-color:var(--primary);color:#fff;}
.faq-answer{padding:0 20px 20px;font-size:14px;line-height:1.9;color:var(--ink-2);}

/* ---------- 底部 CTA ---------- */
.cta-band{background:var(--primary-tint);border-radius:var(--r-lg);padding:48px;display:flex;align-items:center;justify-content:space-between;gap:32px;position:relative;overflow:hidden;}
.cta-band::before,.cta-band::after{content:"";position:absolute;border-radius:50%;border:1px solid rgba(35,80,200,.16);}
.cta-band::before{width:420px;height:420px;right:-140px;top:-190px;}
.cta-band::after{width:280px;height:280px;right:40px;bottom:-190px;border-color:rgba(18,165,148,.22);}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);line-height:1.4;font-weight:700;letter-spacing:-.3px;position:relative;z-index:1;}
.cta-band p{margin-top:10px;font-size:14px;line-height:1.85;color:var(--ink-2);max-width:520px;position:relative;z-index:1;}
.cta-actions{display:flex;flex-direction:column;gap:10px;align-items:flex-start;position:relative;z-index:1;flex:none;}

/* ---------- 页脚 ---------- */
.site-footer{background:#101B33;color:#C9D3E6;padding-top:64px;margin-top:80px;}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px;}
.foot-brand .logo{margin-bottom:6px;}
.foot-brand .logo-name{color:#fff;}
.foot-brand .logo-sub{color:#9FB0CE;}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:#A9B7D0;max-width:330px;}
.foot-domain{display:inline-block;margin-top:14px;font-size:13px;color:#8091B0;letter-spacing:.02em;}
.foot-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px;}
.foot-col ul{display:grid;gap:2px;}
.foot-col ul li a,.foot-col ul li span{display:inline-block;font-size:14px;line-height:2;color:#A9B7D0;transition:color var(--t);}
.foot-col ul li a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:#8091B0;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--container:1120px;}
}
@media (max-width:1023px){
  :root{--nav-h:64px;}
  .nav-links,.nav-actions{display:none;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .section{padding:64px 0;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-figure{order:-1;}
  .hero-figure img{aspect-ratio:16/10;}
  .hero-points{grid-template-columns:repeat(2,1fr);}
  .hero-points li{border-right:0;border-bottom:1px solid var(--line);padding:16px 16px 16px 0;}
  .hero-points li + li{padding-left:16px;}
  .layout{grid-template-columns:1fr;gap:28px;}
  .side-col{position:static;}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px;}
}
@media (max-width:767px){
  .section{padding:48px 0;}
  .wrap{padding:0 20px;}
  .topbar-tip,.topbar-sep,.topbar-time{display:none;}
  .hero-grid{padding-bottom:24px;}
  .flow-item{grid-template-columns:1fr;gap:16px;}
  .flow-item img{width:100%;height:180px;}
  .step-grid,.check-grid{grid-template-columns:1fr;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .sec-head p{max-width:none;}
  .cta-band{padding:28px;border-radius:20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .hero-points{grid-template-columns:1fr;}
  .hero-points li + li{padding-left:0;}
  .hero-cta .btn,.hero-cta .link-arrow{width:100%;}
  .hero-cta .btn{margin-bottom:4px;}
  .page-hero h1{letter-spacing:-.2px;}
}

/* roulang page: category2 */
:root{
  --brand:#2350C8;
  --brand-deep:#1A3E9E;
  --brand-soft:#E8EEFB;
  --aqua:#12A594;
  --aqua-soft:#E3F5F2;
  --amber:#E8963C;
  --ink:#101B33;
  --ink-2:#4A5670;
  --ink-3:#7B869C;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --block:#F0F4FB;
  --line:#E4EAF4;
  --input-line:#CBD6E8;
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,27,51,.04), 0 8px 24px -12px rgba(16,27,51,.14);
  --sh-2:0 2px 6px rgba(16,27,51,.06), 0 16px 36px -16px rgba(16,27,51,.20);
  --container:1200px;
  --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","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .18s var(--ease)}
button{font:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
::selection{background:rgba(35,80,200,.14);color:var(--ink)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section--tight{padding:56px 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head h2{
  font-size:clamp(24px,3vw,32px);
  line-height:1.35;
  font-weight:700;
  color:var(--ink);
  letter-spacing:-.01em;
}
.section-head p{font-size:15px;line-height:1.8;color:var(--ink-2);max-width:34em}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--brand);text-transform:uppercase;
}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--brand)}

/* ---------- 顶部信息条 ---------- */
.topbar{background:#0B1428;color:#C9D3E6;font-size:13px;height:36px;display:flex;align-items:center}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;height:36px}
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0}
.topbar-domain{color:#fff;font-weight:600;letter-spacing:.03em;flex:none}
.topbar-dot{width:3px;height:3px;border-radius:50%;background:#43506B;flex:none}
.topbar-note{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:#AEBBD2}
.topbar-right{display:flex;align-items:center;gap:18px;flex:none}
.topbar-right a{color:#DCE4F3;font-weight:500}
.topbar-right a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.topbar-right span{color:#8FA0BC}
@media (max-width:860px){
  .topbar-hide{display:none}
}

/* ---------- 主导航 ---------- */
.nav-sticky{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid transparent;
  transition:box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.nav-sticky.is-scrolled{border-bottom-color:var(--line);box-shadow:0 8px 24px -18px rgba(16,27,51,.45)}
.nav-inner{display:flex;align-items:center;gap:20px;height:72px}
.logo{display:flex;align-items:center;gap:10px;color:var(--ink);flex:none}
.logo-mark{
  width:40px;height:40px;border-radius:var(--r-sm);
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  display:flex;align-items:center;justify-content:center;flex:none;
  box-shadow:0 6px 16px -10px rgba(35,80,200,.6);
}
.logo-txt{display:flex;flex-direction:column;line-height:1.2}
.logo-name{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.01em}
.logo-sub{font-size:12px;color:var(--ink-3);margin-top:3px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:14px}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:38px;
  padding:0 14px;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;color:var(--ink-2);
  transition:color .18s var(--ease),background-color .18s var(--ease);
}
.nav-links a:hover{color:var(--brand);background:var(--brand-soft)}
.nav-links a:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.nav-links a.active{color:var(--brand);font-weight:600}
.nav-links a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;
  border-radius:2px;background:var(--brand);
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-toggle{
  display:none;align-items:center;gap:8px;margin-left:auto;
  height:40px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid var(--input-line);background:#fff;color:var(--ink);
  font-size:14px;font-weight:600;
}
.nav-toggle:hover{background:var(--block);border-color:rgba(35,80,200,.35)}
.nav-toggle:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.drawer{
  display:none;position:fixed;left:0;right:0;top:72px;bottom:0;
  background:#fff;z-index:70;padding:16px 24px 28px;
  flex-direction:column;overflow:auto;
}
.drawer.open{display:flex}
.drawer a.drawer-link{
  display:flex;align-items:center;height:52px;
  font-size:16px;color:var(--ink);font-weight:500;
  border-bottom:1px solid var(--line);
}
.drawer a.drawer-link.active{color:var(--brand);font-weight:600}
.drawer a.drawer-link:focus-visible{outline:2px solid var(--brand);outline-offset:-4px;border-radius:8px}
.drawer-cta{margin-top:24px;display:flex;flex-direction:column;gap:12px}
@media (max-width:1023px){
  .nav-links,.nav-actions{display:none}
  .nav-toggle{display:inline-flex}
}
@media (max-width:639px){
  .logo-sub{display:none}
  .nav-inner{height:64px}
  .drawer{top:64px}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:13px 22px;border-radius:var(--r-btn);
  border:1px solid transparent;white-space:nowrap;
  transition:background-color .18s var(--ease),color .18s var(--ease),
             box-shadow .18s var(--ease),transform .18s var(--ease),
             border-color .18s var(--ease);
}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 1px 2px rgba(16,27,51,.06)}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:none;box-shadow:var(--sh-1)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--input-line)}
.btn-ghost:hover{background:var(--block);border-color:rgba(35,80,200,.42);color:var(--brand-deep)}
.btn-ghost:active{background:#E6EDF9}
.btn-sm{padding:10px 16px;font-size:14px}
.btn.is-disabled,.btn[disabled]{opacity:.4;pointer-events:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand)}
.link-arrow svg{transition:transform .18s var(--ease)}
.link-arrow:hover{color:var(--brand-deep);text-decoration:underline;text-underline-offset:4px}
.link-arrow:hover svg{transform:translateX(2px)}
.link-arrow:focus-visible{outline:2px solid var(--brand);outline-offset:4px;border-radius:4px}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;line-height:1.6;
  padding:4px 10px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand-deep);
}
.badge--aqua{background:var(--aqua-soft);color:#0C7A6D}
.badge--amber{background:#FDF1E3;color:#B36C1E}
.badge--line{background:#F5F7FC;color:var(--ink-2);border:1px solid var(--line)}

/* ---------- Hero ---------- */
.hero-2{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#EAF0FC 0%,#F0F4FB 58%,#F6F8FC 100%);
  padding:64px 0 72px;
}
.hero-2::before{
  content:"";position:absolute;width:520px;height:520px;right:-140px;top:-220px;
  border-radius:50%;background:radial-gradient(circle,rgba(35,80,200,.10),rgba(35,80,200,0) 68%);
  pointer-events:none;
}
.hero-2::after{
  content:"";position:absolute;width:380px;height:380px;left:-160px;bottom:-200px;
  border-radius:50%;background:radial-gradient(circle,rgba(18,165,148,.12),rgba(18,165,148,0) 70%);
  pointer-events:none;
}
.hero-2-grid{position:relative;display:grid;grid-template-columns:1.04fr .96fr;gap:56px;align-items:center}
.hero-2-copy .badge{margin-bottom:18px}
.hero-2-title{
  font-size:clamp(30px,4.2vw,46px);
  line-height:1.25;font-weight:700;letter-spacing:-.015em;color:var(--ink);
  max-width:16em;
}
.hero-2-lead{
  margin-top:18px;font-size:clamp(16px,1.5vw,18px);
  line-height:1.8;color:var(--ink-2);max-width:30em;
}
.hero-2-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-2-media{position:relative}
.hero-2-media img{
  width:100%;height:392px;object-fit:cover;
  border-radius:var(--r-md);border:1px solid rgba(228,234,244,.9);
  box-shadow:var(--sh-2);
}
.hero-2-card{
  position:absolute;left:-14px;bottom:-18px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:14px 18px;box-shadow:var(--sh-2);max-width:78%;
}
.hero-2-card strong{display:block;font-size:14px;font-weight:700;color:var(--ink)}
.hero-2-card span{display:block;font-size:12.5px;color:var(--ink-3);margin-top:2px}
@media (min-width:1240px){
  .hero-2-media{margin-right:-70px}
  .hero-2-media img{height:420px;border-top-right-radius:0;border-bottom-right-radius:0}
}
@media (max-width:1023px){
  .hero-2-grid{grid-template-columns:1fr;gap:36px}
  .hero-2-media img{height:320px}
  .hero-2-card{left:12px;bottom:-14px}
}
@media (max-width:639px){
  .hero-2{padding:44px 0 56px}
  .hero-2-media img{height:240px}
  .hero-2-card{position:static;margin-top:14px;max-width:none}
}

/* ---------- 大卡瀑布 ---------- */
.card-grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;align-items:start}
.topic-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px;box-shadow:var(--sh-1);
  transition:box-shadow .18s var(--ease),transform .18s var(--ease),border-color .18s var(--ease);
  display:flex;flex-direction:column;
}
.topic-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:rgba(35,80,200,.22)}
.topic-card__img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--r-sm);border:1px solid var(--line);
  background:var(--brand-soft);
}
.topic-card__meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:18px}
.topic-card__time{font-size:13px;color:var(--ink-3)}
.topic-card h3{font-size:19px;line-height:1.5;font-weight:600;color:var(--ink);margin-top:12px}
.topic-card p{font-size:14.5px;line-height:1.85;color:var(--ink-2);margin-top:10px}
.check-list{margin-top:16px}
.check-list li{
  position:relative;padding-left:24px;font-size:14px;line-height:1.7;
  color:var(--ink-2);margin-top:9px;
}
.check-list li::before{
  content:"";position:absolute;left:0;top:4px;width:16px;height:16px;
  border-radius:50%;background:var(--aqua-soft);
}
.check-list li::after{
  content:"";position:absolute;left:4.5px;top:8px;width:7px;height:3.5px;
  border-left:1.6px solid var(--aqua);border-bottom:1.6px solid var(--aqua);
  transform:rotate(-45deg);
}
.topic-card .link-arrow{margin-top:18px}
@media (max-width:767px){
  .card-grid-2{grid-template-columns:1fr}
}

/* ---------- 对比条 ---------- */
.compare{
  background:var(--block);border-radius:20px;padding:34px;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px;
  border:1px solid #E7EDF8;
}
.compare-item{display:flex;flex-direction:column;gap:10px}
.compare-ic{
  width:42px;height:42px;border-radius:var(--r-sm);
  background:#fff;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--brand);
  box-shadow:0 1px 2px rgba(16,27,51,.04);
}
.compare-item h3{font-size:16px;font-weight:600;color:var(--ink);line-height:1.5}
.compare-item p{font-size:13.5px;line-height:1.75;color:var(--ink-2)}
@media (max-width:1023px){
  .compare{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;padding:26px}
}
@media (max-width:560px){
  .compare{grid-template-columns:1fr}
}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 32px}
.step{
  display:flex;gap:18px;padding:26px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  transition:box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.step:hover{box-shadow:var(--sh-2);border-color:rgba(35,80,200,.2)}
.step-num{
  font-size:40px;line-height:1;font-weight:700;color:rgba(35,80,200,.16);
  font-variant-numeric:tabular-nums;flex:none;
}
.step-body h3{font-size:17px;font-weight:600;line-height:1.55;color:var(--ink)}
.step-body p{font-size:14px;line-height:1.8;color:var(--ink-2);margin-top:8px}
@media (min-width:1024px){
  .steps .step:nth-child(even){transform:translateY(30px)}
  .steps{padding-bottom:30px}
}
@media (max-width:767px){
  .steps{grid-template-columns:1fr}
}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-sm);
  overflow:hidden;
  transition:border-color .18s var(--ease),background-color .18s var(--ease),box-shadow .18s var(--ease);
}
.faq-item:hover{border-color:rgba(35,80,200,.28)}
.faq-item[open]{
  border-color:rgba(35,80,200,.3);
  background:#FBFCFE;
  box-shadow:inset 3px 0 0 var(--brand);
}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:17px 20px;list-style:none;cursor:pointer;
  font-size:16px;font-weight:600;line-height:1.6;color:var(--ink);
}
.faq-q::-webkit-details-marker{display:none}
.faq-q:focus-visible{outline:2px solid var(--brand);outline-offset:-3px;border-radius:8px}
.faq-ic{flex:none;color:var(--brand);transition:transform .18s var(--ease)}
.faq-item[open] .faq-ic{transform:rotate(180deg)}
.faq-a{padding:0 20px 20px;font-size:14px;line-height:1.9;color:var(--ink-2)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#EAF1FC 0%,#F1F6FF 100%);
  border:1px solid #E0E8F8;border-radius:var(--r-lg);
  padding:40px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band::before,
.cta-band::after{
  content:"";position:absolute;border-radius:50%;pointer-events:none;
}
.cta-band::before{
  width:320px;height:320px;right:-90px;top:-160px;
  border:1px solid rgba(35,80,200,.12);
}
.cta-band::after{
  width:440px;height:440px;right:-150px;bottom:-260px;
  border:1px solid rgba(18,165,148,.16);
}
.cta-band__text{position:relative;z-index:1;max-width:44em}
.cta-band h2{font-size:clamp(22px,2.6vw,28px);line-height:1.4;font-weight:700;color:var(--ink)}
.cta-band p{font-size:15px;line-height:1.8;color:var(--ink-2);margin-top:10px}
.cta-band__actions{position:relative;z-index:1;display:flex;align-items:center;gap:16px;flex:none;flex-wrap:wrap}
@media (max-width:860px){
  .cta-band{flex-direction:column;align-items:flex-start;padding:30px 26px;gap:22px}
}

/* ---------- 页脚 ---------- */
.site-footer{background:#0B1428;color:#C9D3E6;padding:64px 0 0;margin-top:88px}
.foot-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:40px;
  padding-bottom:44px;
}
.foot-brand .logo{margin-bottom:18px}
.site-footer .logo-name{color:#fff}
.site-footer .logo-sub{color:#8E9CB8}
.site-footer .logo-mark{box-shadow:none}
.foot-brand p{font-size:14px;line-height:1.85;color:#A9B6CE;max-width:34em}
.foot-domain{display:inline-block;margin-top:14px;font-size:13px;color:#7F8DA8;letter-spacing:.05em}
.foot-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;line-height:1.4}
.foot-col li{margin-bottom:10px;font-size:14px;line-height:1.7;color:#A9B6CE}
.foot-col a{color:#A9B6CE}
.foot-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.foot-col a:focus-visible{outline:2px solid #6E8CE0;outline-offset:3px;border-radius:3px}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0 30px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:13px;line-height:1.7;color:#8290AB;
}
@media (max-width:1023px){
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:560px){
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding-top:48px;margin-top:64px}
  .foot-bottom{flex-direction:column}
}

/* ---------- 板块间距响应 ---------- */
@media (max-width:1023px){
  .section{padding:64px 0}
  .section--tight{padding:44px 0}
}
@media (max-width:639px){
  .section{padding:48px 0}
  .section--tight{padding:36px 0}
  .section-head{margin-bottom:26px}
}