/* roulang page: index */
:root{
  --brand:#1A5FB4;
  --brand-dark:#0F3F7E;
  --brand-light:#E8F0FC;
  --accent:#F0A02C;
  --accent-dark:#D98A18;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --line:#E3EAF3;
  --text:#1B2733;
  --muted:#5C6B7A;
  --ok:#2E9E6B;
  --footer:#0E2C4F;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(16,42,80,.06);
  --sh-2:0 10px 24px rgba(16,42,80,.12);
  --container:1200px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease}
a:hover{color:var(--brand-dark)}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.site-container{max-width:var(--container);padding-left:24px;padding-right:24px}
.section{padding:92px 0}
.section-alt{background:#FFFFFF}
.section-tint{background:var(--brand-light)}
.section-line{border-top:1px solid var(--line)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--brand-light);color:var(--brand-dark);
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head h2{font-size:30px;font-weight:700;line-height:1.35;margin-top:16px}
.sec-head p{margin-top:12px;color:var(--muted);font-size:16px}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px}
.sec-head-row h2{font-size:30px;font-weight:700;line-height:1.35;margin-top:16px}
.sec-head-row p{margin-top:12px;color:var(--muted);max-width:640px}
.text-link{color:var(--brand);font-weight:600;border-bottom:2px solid rgba(26,95,180,.28);padding-bottom:2px}
.text-link:hover{color:var(--brand-dark);border-bottom-color:var(--brand-dark)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;text-align:center;
  transition:transform .25s ease,box-shadow .25s ease,background-color .22s ease,border-color .22s ease,color .22s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-accent{background:var(--accent);color:#3A2600;border-radius:var(--r-pill);box-shadow:var(--sh-1)}
.btn-accent:hover{background:var(--accent-dark);color:#2B1C00;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-ghost{background:#fff;color:var(--brand);border-color:rgba(26,95,180,.42)}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);border-color:var(--brand);transform:translateY(-2px)}
.btn:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn[disabled],.btn.is-disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-block{display:flex;width:100%}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;line-height:1.6;
  background:var(--brand-light);color:var(--brand-dark);
}
.badge-accent{background:rgba(240,160,44,.16);color:#8A5A05}
.badge-ok{background:rgba(46,158,107,.14);color:#1F7A50}
.tag{display:inline-block;padding:4px 12px;border-radius:var(--r-pill);background:var(--brand-light);color:var(--brand-dark);font-size:12px;font-weight:600}
.tag-muted{background:#EEF2F7;color:var(--muted)}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 4px 18px rgba(16,42,80,.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto}
.brand:hover{color:var(--text)}
.brand-mark{display:inline-flex;width:34px;height:34px;flex:0 0 auto}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px;padding:5px;border-radius:var(--r-pill);background:#F3F7FC}
.nav-link{
  display:inline-block;padding:9px 16px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:600;color:var(--muted);white-space:nowrap;
}
.nav-link:hover{background:#fff;color:var(--brand);box-shadow:var(--sh-1)}
.nav-link.is-active{background:var(--brand);color:#fff;box-shadow:0 4px 12px rgba(26,95,180,.28)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--brand);background:var(--brand-light)}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- 移动抽屉 ---------- */
.nav-drawer{position:fixed;inset:0;z-index:90;visibility:hidden;pointer-events:none}
.nav-drawer.is-open{visibility:visible;pointer-events:auto}
.nav-drawer-mask{position:absolute;inset:0;background:rgba(11,30,54,.45);opacity:0;transition:opacity .28s ease}
.nav-drawer.is-open .nav-drawer-mask{opacity:1}
.nav-drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:min(86vw,360px);
  background:#fff;padding:22px 20px 28px;display:flex;flex-direction:column;gap:6px;
  transform:translateX(100%);transition:transform .3s ease;overflow-y:auto;
  box-shadow:-14px 0 34px rgba(16,42,80,.16);
}
.nav-drawer.is-open .nav-drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer-title{font-size:15px;font-weight:700;color:var(--text)}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:#fff;font-size:18px;line-height:1;color:var(--muted)}
.drawer-close:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-light)}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:18px}
.drawer-link{padding:13px 16px;border-radius:12px;font-weight:600;color:var(--text);background:#F6F9FD}
.drawer-link:hover{background:var(--brand-light);color:var(--brand-dark)}
.drawer-link.is-active{background:var(--brand);color:#fff}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;padding-top:18px;border-top:1px solid var(--line)}
.drawer-foot small{color:var(--muted);font-size:12.5px}

/* ---------- Hero ---------- */
.hero{position:relative;background:#fff;border-bottom:1px solid var(--line);overflow:hidden}
.hero::after{
  content:"";position:absolute;top:-120px;right:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(26,95,180,.12),rgba(26,95,180,0) 68%);
}
.hero .grid-x{align-items:center}
.hero-copy{position:relative;z-index:2;padding:16px 0}
.hero h1{font-size:clamp(26px,3.2vw,42px);font-weight:700;line-height:1.3;margin-top:18px}
.hero-sub{margin-top:18px;font-size:16.5px;color:var(--muted);max-width:560px}
.hero-meta{display:flex;flex-wrap:wrap;gap:22px;margin-top:30px;padding-top:24px;border-top:1px solid var(--line)}
.hero-meta div{min-width:120px}
.hero-meta strong{display:block;font-size:22px;font-weight:700;color:var(--brand);line-height:1.3}
.hero-meta span{font-size:13px;color:var(--muted)}
.hero-visual{position:relative;z-index:2;padding:12px 0}
.hero-visual img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-card);box-shadow:var(--sh-2)}
.hero-visual .float-note{
  position:absolute;left:auto;right:8px;bottom:22px;background:#fff;border-radius:14px;
  padding:12px 16px;box-shadow:var(--sh-2);display:flex;align-items:center;gap:10px;max-width:78%;
}
.float-note b{font-size:14px;font-weight:700}
.float-note small{display:block;font-size:12px;color:var(--muted);line-height:1.6}
.dot-ok{width:10px;height:10px;border-radius:50%;background:var(--ok);flex:0 0 auto}

/* ---------- 快速入口条 ---------- */
.quick-bar{background:#fff;border-bottom:1px solid var(--line);padding:26px 0}
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.quick-item{
  display:flex;align-items:center;gap:12px;padding:14px 18px;border-radius:var(--r-pill);
  background:#F5F8FC;border:1px solid var(--line);color:var(--text);font-weight:600;font-size:14.5px;
  transition:transform .25s ease,box-shadow .25s ease,background-color .22s ease,border-color .22s ease;
}
.quick-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);background:#fff;border-color:rgba(26,95,180,.35);color:var(--brand-dark)}
.quick-ico{width:30px;height:30px;border-radius:9px;background:var(--brand-light);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;flex:0 0 auto}

/* ---------- 图文交替 ---------- */
.feature-row{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center}
.feature-row.rev{grid-template-columns:7fr 5fr}
.feature-row + .feature-row{margin-top:76px}
.feature-img img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-card);box-shadow:var(--sh-1)}
.feature-body h3{font-size:22px;font-weight:700;line-height:1.45;margin-bottom:14px}
.feature-body p{color:var(--muted);margin-bottom:14px}
.check-list{margin-top:6px}
.check-list li{position:relative;padding-left:26px;margin-bottom:10px;font-size:15px;color:var(--text)}
.check-list li::before{
  content:"";position:absolute;left:0;top:8px;width:14px;height:8px;
  border-left:2px solid var(--ok);border-bottom:2px solid var(--ok);transform:rotate(-45deg);
}
.feature-index{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:700;color:var(--brand);margin-bottom:12px}
.feature-index i{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:50%;background:var(--brand-light);font-style:normal}

/* ---------- 统计数字 ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:44px}
.stat-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1)}
.stat-card strong{display:block;font-size:30px;font-weight:700;color:var(--brand);line-height:1.2}
.stat-card span{display:block;margin-top:6px;font-size:13.5px;color:var(--muted)}

/* ---------- 卡片 ---------- */
.card{
  display:flex;flex-direction:column;height:100%;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(26,95,180,.24)}
.card-media{position:relative}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.card-media .badge{position:absolute;left:14px;top:14px;background:#fff;color:var(--brand-dark);box-shadow:var(--sh-1)}
.card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:19px;font-weight:600;line-height:1.5}
.card-body p{font-size:14.5px;color:var(--muted)}
.card-meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);padding-top:6px}
.card-meta .sep{width:4px;height:4px;border-radius:50%;background:#C6D2E0}
.card-foot-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
.card-link{display:block;height:100%;color:inherit}
.card-link:hover{color:inherit}
.card-link:hover .card-foot-link{color:var(--brand-dark);gap:10px}
.card-soft{background:#FBFCFE}

/* ---------- 进度与步骤 ---------- */
.progress-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1)}
.progress-head{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:16px}
.progress-head h3{font-size:19px;font-weight:700}
.progress-head span{font-size:13.5px;color:var(--muted)}
.bar{height:10px;border-radius:var(--r-pill);background:var(--brand-light);overflow:hidden}
.bar-fill{height:100%;width:0;border-radius:var(--r-pill);background:linear-gradient(90deg,var(--accent),var(--brand));transition:width .8s ease}
.progress-note{margin-top:14px;font-size:13.5px;color:var(--muted)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:32px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px;position:relative;box-shadow:var(--sh-1)}
.step-num{
  width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;background:var(--brand-light);color:var(--brand);margin-bottom:14px;
}
.step.is-done .step-num{background:var(--brand);color:#fff}
.step.is-current .step-num{background:#fff;color:var(--brand);border:2px solid var(--brand);box-shadow:0 0 0 5px rgba(26,95,180,.14)}
.step h4{font-size:16px;font-weight:600;margin-bottom:8px}
.step p{font-size:13.5px;color:var(--muted)}

/* ---------- 资讯列表 ---------- */
.news-grid .cell{margin-bottom:24px}
.empty-state{
  background:#fff;border:1px dashed #C9D7E6;border-radius:var(--r-card);
  padding:56px 24px;text-align:center;
}
.empty-shape{width:64px;height:64px;margin:0 auto 18px;border-radius:18px;border:2px solid #CFDDEC;position:relative}
.empty-shape::before{content:"";position:absolute;left:14px;top:20px;right:14px;height:2px;background:#CFDDEC;box-shadow:0 10px 0 #CFDDEC}
.empty-state p{color:var(--muted);margin-bottom:18px}

/* ---------- FAQ ---------- */
.faq-accordion{margin:0;background:transparent;border:none}
.faq-accordion .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:14px;overflow:hidden;
}
.faq-accordion .accordion-title{
  border:none;border-bottom:1px solid transparent;padding:18px 58px 18px 22px;
  font-size:16px;font-weight:600;color:var(--text);line-height:1.7;
}
.faq-accordion .accordion-title:hover{background:var(--brand-light);color:var(--brand-dark)}
.faq-accordion .accordion-title:focus{outline:2px solid var(--brand);outline-offset:-2px}
.faq-accordion .accordion-title::before{left:auto;right:22px;top:50%;margin-top:-10px;color:var(--brand);font-size:20px;line-height:1}
.faq-accordion .accordion-item.is-active .accordion-title{border-bottom-color:var(--line);color:var(--brand-dark)}
.faq-accordion .accordion-item.is-active .accordion-title::before{content:"−";color:var(--accent)}
.faq-accordion .accordion-content{border:none;background:var(--bg);padding:18px 22px;font-size:15px;color:var(--muted);line-height:1.9}

/* ---------- CTA ---------- */
.cta-band{background:var(--footer);color:#fff;border-radius:22px;padding:52px;position:relative;overflow:hidden}
.cta-band::after{
  content:"";position:absolute;right:-80px;bottom:-100px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,160,44,.24),rgba(240,160,44,0) 70%);
}
.cta-band h2{font-size:28px;font-weight:700;line-height:1.4;position:relative;z-index:2}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.76);max-width:640px;position:relative;z-index:2}
.cta-band .btn-row{position:relative;z-index:2}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer);color:rgba(255,255,255,.72);margin-top:0}
.footer-top{padding:64px 0 44px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:16px}
.footer-brand .brand-mark svg rect{fill:rgba(255,255,255,.14)}
.site-footer p{font-size:14px;line-height:1.85}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px}
.footer-col a:hover{color:#9CC6F5}
.footer-contact li{font-size:14px;margin-bottom:10px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.6)}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .btn-sm{display:none}
  .section{padding:76px 0}
  .feature-row,.feature-row.rev{grid-template-columns:1fr;gap:28px}
  .feature-row.rev .feature-img{order:-1}
  .feature-row + .feature-row{margin-top:56px}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:40px}
}
@media screen and (max-width:768px){
  .site-container{padding-left:18px;padding-right:18px}
  .section{padding:56px 0}
  .sec-head{margin-bottom:32px}
  .sec-head h2,.sec-head-row h2{font-size:24px}
  .quick-grid{grid-template-columns:repeat(2,1fr)}
  .hero-copy{padding-top:8px}
  .hero-visual{padding-bottom:28px}
  .hero-visual .float-note{position:static;margin-top:14px;max-width:100%}
  .cta-band{padding:32px 24px;border-radius:18px}
  .cta-band h2{font-size:23px}
}
@media screen and (max-width:520px){
  .brand-text{font-size:15.5px}
  .header-inner{height:64px}
  .quick-grid{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .hero h1{font-size:24px}
  .hero-meta{gap:16px}
  .hero-meta div{min-width:46%}
  .btn{width:100%}
  .btn-row{gap:12px}
  .card-body{padding:18px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}

/* roulang page: article */
:root{
  --brand:#1A5FB4;
  --brand-dark:#0F3F7E;
  --brand-light:#E8F0FC;
  --accent:#F0A02C;
  --accent-dark:#D1871A;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --line:#E3EAF3;
  --text:#1B2733;
  --muted:#5C6B7A;
  --ok:#2E9E6B;
  --err:#D64545;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow:0 2px 8px rgba(16,42,80,.06);
  --shadow-hover:0 10px 24px rgba(16,42,80,.12);
  --ease:.25s ease;
  --gutter:24px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--brand-dark);}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;color:var(--text);}
p{margin:0 0 16px;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

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

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,42,80,.08);}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:74px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{display:inline-flex;width:38px;height:38px;flex:0 0 auto;}
.brand-text{font-size:18px;font-weight:700;color:var(--text);letter-spacing:.2px;}
.brand:hover .brand-text{color:var(--brand-dark);}

.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  display:inline-block;
  padding:9px 16px;
  border-radius:999px;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  white-space:nowrap;
  transition:background var(--ease),color var(--ease);
}
.nav-link:hover{background:var(--brand-light);color:var(--brand-dark);}
.nav-link.is-active{background:var(--brand);color:#fff;}
.nav-link.is-active:hover{background:var(--brand-dark);color:#fff;}

.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  cursor:pointer;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:4px;
  transition:border-color var(--ease),background var(--ease);
}
.nav-toggle:hover{border-color:var(--brand);background:var(--brand-light);}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;}

.mobile-drawer{
  display:none;
  position:absolute;
  top:100%;
  left:0;
  right:0;
  background:#fff;
  border-top:1px solid var(--line);
  box-shadow:0 16px 32px rgba(16,42,80,.14);
  padding:16px 24px 22px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer .drawer-link{
  display:block;
  padding:12px 14px;
  border-radius:12px;
  font-size:16px;
  color:var(--text);
  font-weight:500;
}
.mobile-drawer .drawer-link:hover{background:var(--brand-light);color:var(--brand-dark);}
.mobile-drawer .drawer-link.is-active{background:var(--brand);color:#fff;}
.mobile-drawer .btn{width:100%;margin-top:12px;justify-content:center;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  text-align:center;
  transition:background var(--ease),color var(--ease),box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 4px 14px rgba(26,95,180,.24);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(16,42,80,.2);}
.btn-primary:active{transform:translateY(0);box-shadow:0 2px 8px rgba(16,42,80,.18);}
.btn-accent{background:var(--accent);color:#3A2705;box-shadow:0 4px 14px rgba(240,160,44,.3);}
.btn-accent:hover{background:var(--accent-dark);color:#2E1E04;transform:translateY(-2px);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-2px);}
.btn-pill{border-radius:999px;}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn:disabled,.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:13px;color:var(--muted);}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#C3D0E0;}
.crumb .current{color:var(--text);font-weight:500;max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头 ---------- */
.article-head-wrap{
  background:#fff url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.article-head-wrap::after{content:"";display:block;}
.article-head{
  background:rgba(255,255,255,.94);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow);
  padding:32px 36px;
  margin:28px 0 0;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 14px;
  border-radius:999px;
  font-size:13px;
  font-weight:600;
  background:var(--brand-light);
  color:var(--brand-dark);
}
.badge-accent{background:#FDF1DD;color:#9A6412;}
.article-head h1{
  font-size:clamp(24px,3vw,38px);
  margin:16px 0 14px;
  letter-spacing:.2px;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 18px;
  font-size:13px;
  color:var(--muted);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C3D0E0;display:inline-block;}

/* ---------- 文章主体布局 ---------- */
.article-layout{padding:40px 0 0;}
.article-main .panel{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow);
  padding:32px 36px 36px;
}
.article-body{max-width:760px;font-size:16px;line-height:1.9;color:var(--text);}
.article-body h2{
  font-size:22px;
  font-weight:700;
  margin:36px 0 14px;
  padding-left:12px;
  border-left:4px solid var(--brand);
  line-height:1.5;
}
.article-body h2:first-child{margin-top:0;}
.article-body h3{font-size:18px;font-weight:600;margin:26px 0 10px;}
.article-body h4{font-size:16px;font-weight:600;margin:20px 0 8px;color:var(--brand-dark);}
.article-body p{margin:0 0 18px;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;}
.article-body ul li{list-style:disc;margin-bottom:8px;}
.article-body ol li{list-style:decimal;margin-bottom:8px;}
.article-body blockquote{
  margin:22px 0;
  padding:16px 20px;
  background:var(--brand-light);
  border-left:4px solid var(--brand);
  border-radius:8px;
  color:var(--brand-dark);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--radius-img);margin:20px 0;width:100%;height:auto;}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body th{background:var(--brand-light);font-weight:600;}
.article-body tbody tr:nth-child(even) td{background:#FAFCFF;}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:28px 0;}
.article-body code{background:#F0F4FA;border-radius:6px;padding:2px 6px;font-size:14px;}

.empty-state{
  text-align:center;
  padding:48px 24px;
  background:#fff;
  border:1px dashed var(--line);
  border-radius:var(--radius-card);
}
.empty-state .empty-art{width:88px;height:88px;margin:0 auto 18px;border-radius:20px;background:var(--brand-light);display:flex;align-items:center;justify-content:center;}
.empty-state h3{font-size:19px;margin-bottom:8px;}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:20px;}

/* ---------- 正文底部操作条 ---------- */
.article-actions{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  margin-top:32px;
  padding-top:22px;
  border-top:1px solid var(--line);
}
.action-tags{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-block;
  padding:6px 14px;
  border-radius:999px;
  background:var(--bg);
  border:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
  transition:all var(--ease);
}
.tag:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-light);}

/* ---------- 侧栏 ---------- */
.article-side .side-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow);
  padding:22px 22px 24px;
  margin-bottom:24px;
}
.side-card h3{font-size:17px;margin-bottom:14px;padding-left:10px;border-left:3px solid var(--brand);line-height:1.4;}
.side-list li{border-bottom:1px solid var(--line);padding:12px 0;}
.side-list li:last-child{border-bottom:0;padding-bottom:0;}
.side-list a{display:block;font-size:15px;font-weight:500;color:var(--text);}
.side-list a:hover{color:var(--brand);}
.side-list .side-note{display:block;font-size:13px;color:var(--muted);margin-top:4px;font-weight:400;}
.side-sticky{position:sticky;top:98px;}

/* ---------- 继续了解 ---------- */
.next-prev{padding:56px 0 0;}
.section-head{margin-bottom:22px;}
.section-head h2{font-size:26px;}
.section-head p{color:var(--muted);font-size:15px;margin:8px 0 0;}
.dual-card{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow);
  padding:22px 24px;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  height:100%;
}
.dual-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#CFE0F5;}
.dual-card .dual-label{font-size:13px;color:var(--muted);}
.dual-card strong{display:block;font-size:17px;margin-top:4px;}
.dual-card .arrow{font-size:20px;color:var(--brand);}

/* ---------- 内容卡片 ---------- */
.cards{padding:64px 0 0;}
.info-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow);
  overflow:hidden;
  height:100%;
  display:flex;
  flex-direction:column;
  transition:transform var(--ease),box-shadow var(--ease);
}
.info-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.info-card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--brand-light);}
.info-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.info-card:hover .thumb img{transform:scale(1.04);}
.info-card .thumb .badge{position:absolute;left:14px;top:14px;}
.info-card .card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.info-card h3{font-size:18px;margin-bottom:10px;}
.info-card p{font-size:14px;color:var(--muted);margin-bottom:16px;}
.info-card .card-foot{margin-top:auto;font-size:13px;color:var(--muted);display:flex;align-items:center;justify-content:space-between;}
.info-card .card-foot .more{color:var(--brand);font-weight:600;}

/* ---------- CTA ---------- */
.cta-band{
  margin-top:72px;
  background:#0F3F7E url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  position:relative;
  overflow:hidden;
}
.cta-band::before{content:"";position:absolute;inset:0;background:rgba(15,63,126,.82);}
.cta-inner{position:relative;padding:64px 0;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;}
.cta-inner h2{color:#fff;font-size:28px;margin-bottom:10px;}
.cta-inner p{color:rgba(255,255,255,.82);margin:0;max-width:600px;font-size:15px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0E2C4F;color:rgba(255,255,255,.78);margin-top:0;}
.footer-top{padding:60px 0 40px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:14px;}
.footer-brand .brand-mark{width:34px;height:34px;}
.site-footer p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.7);margin:0;max-width:340px;}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{color:rgba(255,255,255,.75);font-size:14px;}
.footer-col a:hover{color:#9CC6F5;}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.72);margin-bottom:10px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:18px 0 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.62);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  .site-container{padding:0 20px;}
  .grid-container.site-container{padding-left:20px;padding-right:20px;}
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn-header{display:none;}
  .article-head{padding:26px 24px;}
  .article-main .panel{padding:26px 22px 28px;}
  .article-side .side-sticky{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-inner{padding:52px 0;}
}
@media screen and (max-width:768px){
  body{font-size:15.5px;}
  .section-head h2{font-size:22px;}
  .article-head h1{font-size:24px;}
  .article-body h2{font-size:19px;}
  .article-layout{padding:24px 0 0;}
  .next-prev{padding:40px 0 0;}
  .cards{padding:44px 0 0;}
  .cta-band{margin-top:48px;}
  .cta-inner h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-top{padding:44px 0 30px;}
}
@media screen and (max-width:520px){
  .site-container{padding:0 16px;}
  .grid-container.site-container{padding-left:16px;padding-right:16px;}
  .brand-text{font-size:16px;}
  .header-inner{min-height:66px;gap:12px;}
  .article-head{padding:22px 18px;margin-top:18px;}
  .article-head h1{font-size:21px;}
  .article-main .panel{padding:20px 16px 22px;}
  .article-body h2{font-size:18px;margin:26px 0 12px;}
  .article-actions{flex-direction:column;align-items:stretch;}
  .article-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .crumb .current{max-width:70vw;}
}
@media screen and (max-width:480px){
  .btn{padding:11px 18px;}
  .dual-card{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --brand:#1A5FB4;
  --brand-dark:#0F3F7E;
  --brand-light:#E8F0FC;
  --accent:#F0A02C;
  --accent-dark:#D8891A;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --line:#E3EAF3;
  --text:#1B2733;
  --muted:#5C6B7A;
  --success:#2E9E6B;
  --footer-bg:#0E2C4F;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow-sm:0 2px 8px rgba(16,42,80,.06);
  --shadow-lg:0 10px 24px rgba(16,42,80,.12);
  --section-y:88px;
  --section-y-sm:56px;
  --font-cn:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius-img);object-fit:cover}
a{color:var(--brand);text-decoration:none;transition:color .25s ease,background-color .25s ease,border-color .25s ease}
a:hover{color:var(--brand-dark)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;color:var(--text);letter-spacing:.2px}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
::selection{background:var(--brand-light);color:var(--brand-dark)}

/* 容器 */
.grid-container.site-container{
  max-width:1200px;
  padding-left:16px;
  padding-right:16px;
  margin-left:auto;
  margin-right:auto;
}
@media screen and (min-width:641px){
  .grid-container.site-container{padding-left:24px;padding-right:24px}
}

/* 顶部导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,42,80,.09)}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:74px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--text);
  font-weight:700;
  flex:0 0 auto;
}
.brand:hover{color:var(--brand-dark)}
.brand-mark{
  display:inline-flex;
  width:38px;
  height:38px;
  border-radius:11px;
  background:linear-gradient(140deg,var(--brand) 0%,var(--brand-dark) 100%);
  align-items:center;
  justify-content:center;
}
.brand-name{font-size:18px;letter-spacing:.3px;white-space:nowrap}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  background:var(--brand-light);
  border-radius:var(--radius-pill);
  padding:6px;
}
.nav-link{
  display:inline-block;
  padding:8px 16px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:500;
  color:#2C3E50;
  white-space:nowrap;
}
.nav-link:hover{background:#fff;color:var(--brand-dark)}
.nav-link.is-active{
  background:var(--brand);
  color:#fff;
  box-shadow:0 4px 12px rgba(26,95,180,.28);
}
.nav-link.is-active:hover{background:var(--brand-dark);color:#fff}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  cursor:pointer;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:4px;
  padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-dark);border-radius:2px;transition:.25s}
.nav-toggle:hover{background:var(--brand-light)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.mobile-drawer{
  position:fixed;
  top:0;
  right:0;
  height:100%;
  width:min(320px,86vw);
  background:#fff;
  padding:22px 20px;
  display:flex;
  flex-direction:column;
  gap:8px;
  overflow-y:auto;
  transform:translateX(105%);
  transition:transform .3s ease;
  box-shadow:-12px 0 40px rgba(16,42,80,.18);
  z-index:90;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.drawer-head strong{font-size:16px;color:var(--brand-dark)}
.drawer-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--muted);font-size:18px;line-height:1;cursor:pointer;
}
.drawer-close:hover{background:var(--brand-light);color:var(--brand-dark)}
.drawer-link{
  display:block;
  padding:12px 14px;
  border-radius:12px;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  border:1px solid transparent;
}
.drawer-link:hover{background:var(--brand-light);color:var(--brand-dark)}
.drawer-link.is-active{background:var(--brand-light);color:var(--brand-dark);border-color:#CFE0F7}
.drawer-cta{margin-top:12px}
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(14,44,79,.45);
  opacity:0;
  visibility:hidden;
  transition:opacity .3s ease,visibility .3s ease;
  z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .25s ease,box-shadow .25s ease,background-color .25s ease,color .25s ease,border-color .25s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(26,95,180,.24)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.btn-accent{background:var(--accent);color:#3A2705;box-shadow:0 6px 16px rgba(240,160,44,.28)}
.btn-accent:hover{background:var(--accent-dark);color:#2E1F03;transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.btn-ghost{background:#fff;color:var(--brand);border-color:#C6D9F2}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);border-color:var(--brand);transform:translateY(-3px)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;transform:translateY(-3px)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}

/* 徽章 / 标签 */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 14px;
  border-radius:var(--radius-pill);
  background:var(--brand-light);
  color:var(--brand-dark);
  font-size:13px;
  font-weight:600;
  letter-spacing:.4px;
  margin-bottom:16px;
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:3px 12px;
  border-radius:var(--radius-pill);
  background:#fff;
  border:1px solid var(--line);
  color:var(--muted);
  font-size:12px;
  font-weight:600;
}
.tag-accent{background:rgba(240,160,44,.14);border-color:rgba(240,160,44,.35);color:#A56607}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  letter-spacing:1.4px;
  color:var(--brand);
  margin-bottom:10px;
}

/* Hero */
.page-hero{
  background:#fff;
  padding:60px 0 66px;
  border-bottom:1px solid var(--line);
}
.hero-row{align-items:center}
.hero-copy h1{
  font-size:clamp(26px,3.2vw,40px);
  line-height:1.3;
  font-weight:700;
  margin-bottom:16px;
}
.hero-sub{
  font-size:16px;
  color:var(--muted);
  max-width:560px;
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px}
.hero-facts{display:flex;flex-wrap:wrap;gap:26px}
.hero-facts li{display:flex;flex-direction:column}
.hero-facts strong{font-size:22px;color:var(--brand);font-weight:700;line-height:1.2}
.hero-facts span{font-size:13px;color:var(--muted)}
.hero-media{margin-top:34px}
.hero-media img{
  width:100%;
  aspect-ratio:16/9;
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-lg);
}

/* 面包屑 */
.breadcrumb-bar{background:#fff;border-bottom:1px solid var(--line);padding:14px 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .current{color:var(--text);font-weight:600}
.breadcrumb .sep{color:#B9C7D6}

/* 区块 */
.section{padding:var(--section-y) 0}
.section-alt{background:#fff}
.section-line{border-top:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:12px}
.section-desc{color:var(--muted);font-size:15.5px}

/* 步骤卡 */
.steps-row{margin-top:4px}
.step-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px 22px;
  box-shadow:var(--shadow-sm);
  height:100%;
  margin-bottom:24px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#CFE0F7}
.step-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  border-radius:50%;
  background:var(--brand-light);
  color:var(--brand-dark);
  font-weight:700;
  font-size:14px;
  margin-bottom:16px;
}
.step-card h3{font-size:19px;margin-bottom:10px}
.step-card p{font-size:14.5px;color:var(--muted)}
.step-card .step-note{
  display:block;
  margin-top:14px;
  font-size:13px;
  color:var(--brand);
  border-top:1px dashed var(--line);
  padding-top:12px;
}

/* 入口卡片 */
.entry-card{
  display:flex;
  flex-direction:column;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  height:100%;
  margin-bottom:24px;
  transition:transform .25s ease,box-shadow .25s ease;
}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.entry-thumb{position:relative;overflow:hidden}
.entry-thumb img{width:100%;aspect-ratio:16/10;border-radius:0}
.entry-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.entry-body h3{font-size:19px}
.entry-body p{font-size:14.5px;color:var(--muted)}
.link-arrow{
  margin-top:auto;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
  display:inline-flex;
  align-items:center;
  gap:6px;
  text-decoration:underline;
  text-underline-offset:4px;
}
.link-arrow::after{content:"→";transition:transform .25s ease}
.link-arrow:hover{color:var(--brand-dark)}
.link-arrow:hover::after{transform:translateX(4px)}

/* 注意事项清单 */
.check-list{margin-top:4px}
.check-item{
  display:flex;
  gap:14px;
  align-items:flex-start;
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  padding:18px 20px;
  margin-bottom:16px;
  box-shadow:var(--shadow-sm);
  transition:border-color .25s ease,background-color .25s ease;
}
.check-item:hover{border-color:#CFE0F7}
.check-icon{
  flex:0 0 auto;
  width:24px;
  height:24px;
  border-radius:50%;
  background:rgba(46,158,107,.12);
  color:var(--success);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
  font-weight:700;
  margin-top:3px;
}
.check-item h3{font-size:16px;margin-bottom:6px}
.check-item p{font-size:14.5px;color:var(--muted)}

/* FAQ */
.faq-accordion{border:0;background:transparent;margin:0}
.faq-accordion .accordion-item{
  border:1px solid var(--line);
  border-radius:14px;
  background:#fff;
  margin-bottom:14px;
  overflow:hidden;
  box-shadow:var(--shadow-sm);
}
.faq-accordion .accordion-title{
  border:0;
  background:#fff;
  padding:18px 56px 18px 20px;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  position:relative;
  transition:background-color .25s ease,color .25s ease;
}
.faq-accordion .accordion-title:hover{background:var(--brand-light);color:var(--brand-dark)}
.faq-accordion .accordion-title::before{
  content:"";
  position:absolute;
  right:22px;
  top:50%;
  width:9px;
  height:9px;
  border:0;
  border-right:2px solid var(--brand);
  border-bottom:2px solid var(--brand);
  transform:translateY(-70%) rotate(45deg);
  transition:transform .25s ease;
}
.faq-accordion .accordion-item.is-active .accordion-title::before{
  transform:translateY(-30%) rotate(-135deg);
}
.faq-accordion .accordion-content{
  border:0;
  background:var(--bg);
  padding:18px 20px;
  color:var(--muted);
  font-size:15px;
  line-height:1.9;
}
.faq-accordion .accordion-content a{text-decoration:underline;text-underline-offset:3px}

/* CTA 通栏 */
.cta-band{background:var(--brand-dark);padding:64px 0}
.cta-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:26px;
}
.cta-inner h2{color:#fff;font-size:clamp(21px,2.3vw,28px);margin-bottom:10px}
.cta-inner p{color:rgba(255,255,255,.78);font-size:15px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* 页脚 */
.site-footer{background:var(--footer-bg);color:rgba(255,255,255,.78);padding-top:64px}
.footer-top{padding-bottom:44px}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.1fr;
  gap:36px;
}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:14px}
.footer-brand .brand-mark{background:rgba(255,255,255,.08)}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68)}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px;font-weight:600}
.footer-col ul li{margin-bottom:10px}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px}
.footer-col a:hover{color:#9EC5F5}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.68);margin-bottom:10px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding-top:20px;
  padding-bottom:26px;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:rgba(255,255,255,.6);
}

/* 响应式 */
@media screen and (max-width:1024px){
  :root{--section-y:66px}
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .hero-text-only{max-width:none}
  .page-hero{padding:44px 0 50px}
  .hero-media{margin-top:28px}
}
@media screen and (max-width:768px){
  :root{--section-y:var(--section-y-sm)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .section-head{margin-bottom:32px}
  .cta-band{padding:52px 0}
}
@media screen and (max-width:640px){
  .header-cta{display:none}
  .brand-name{font-size:16px}
  .hero-actions .btn{width:100%}
  .hero-facts{gap:20px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
}
@media screen and (max-width:480px){
  .hero-copy h1{font-size:25px}
  .section-head h2{font-size:21px}
  .step-card,.entry-body{padding:18px}
  .cta-actions .btn{width:100%}
}

/* roulang page: category2 */
:root{
  --brand:#1A5FB4;
  --brand-dark:#0F3F7E;
  --brand-light:#E8F0FC;
  --accent:#F0A02C;
  --accent-dark:#D98A18;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --line:#E3EAF3;
  --text:#1B2733;
  --muted:#5C6B7A;
  --success:#2E9E6B;
  --footer-bg:#0E2C4F;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-sm:0 2px 8px rgba(16,42,80,.06);
  --shadow-lg:0 10px 24px rgba(16,42,80,.12);
  --ease:.25s ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote{margin:0;padding:0;}
ul,ol{list-style:none;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--brand-dark);}
img{max-width:100%;height:auto;display:block;}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

/* 布局容器 */
.grid-container.site-container{
  max-width:1200px;
  padding-left:24px;
  padding-right:24px;
}
.grid-x.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-x.grid-margin-x > .cell{padding-left:12px;padding-right:12px;}

/* 头部导航 */
.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:0 4px 18px rgba(16,42,80,.09);}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:74px;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:700;font-size:17px;letter-spacing:.2px;}
.brand:hover{color:var(--brand-dark);}
.brand-mark{display:inline-flex;flex:0 0 auto;}
.brand-text{white-space:nowrap;}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  padding:5px;
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:999px;
}
.nav-link{
  display:inline-block;
  padding:8px 15px;
  border-radius:999px;
  font-size:15px;
  color:var(--muted);
  font-weight:500;
  transition:background var(--ease),color var(--ease);
}
.nav-link:hover{background:#fff;color:var(--brand);}
.nav-link.is-active{background:var(--brand);color:#fff;}
.nav-link.is-active:hover{background:var(--brand-dark);color:#fff;}
.header-actions{display:flex;align-items:center;gap:12px;}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border:1px solid transparent;
  transition:background var(--ease),color var(--ease),box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.btn-primary:active{transform:translateY(0);background:#0C356A;}
.btn-accent{background:var(--accent);color:#3A2607;}
.btn-accent:hover{background:var(--accent-dark);color:#3A2607;transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.btn-accent:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);}
.btn-pill{border-radius:999px;}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

/* 移动导航 */
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  align-items:center;
  justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-drawer{
  position:fixed;
  top:0;right:0;
  width:82%;
  max-width:340px;
  height:100%;
  background:#fff;
  border-left:1px solid var(--line);
  box-shadow:-12px 0 32px rgba(16,42,80,.14);
  transform:translateX(105%);
  transition:transform .3s ease;
  z-index:80;
  display:flex;
  flex-direction:column;
  padding:24px 20px 28px;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);font-size:18px;color:var(--muted);}
.drawer-nav{display:flex;flex-direction:column;gap:6px;}
.drawer-nav .nav-link{padding:13px 16px;border-radius:12px;font-size:16px;}
.drawer-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line);}
.drawer-foot .btn{width:100%;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,44,79,.42);
  opacity:0;visibility:hidden;transition:opacity .3s ease;z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* 通用板块 */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{margin-bottom:40px;max-width:760px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-block;
  padding:5px 14px;
  border-radius:999px;
  background:var(--brand-light);
  color:var(--brand-dark);
  font-size:13px;
  font-weight:600;
  margin-bottom:14px;
}
h1{font-size:clamp(26px,3.2vw,42px);font-weight:700;line-height:1.32;letter-spacing:-.2px;}
h2{font-size:clamp(23px,2.3vw,30px);font-weight:700;line-height:1.4;margin-bottom:12px;}
h3{font-size:18px;font-weight:600;line-height:1.5;color:var(--text);}
.lead{font-size:17px;color:var(--muted);line-height:1.85;}
.small-note{font-size:13px;color:var(--muted);}
.divider{height:1px;background:var(--line);margin:0;}

/* 面包屑 */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#C3D0E0;}
.breadcrumb .current{color:var(--text);font-weight:600;}

/* 首屏 */
.hero{
  background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);
  padding:40px 0 72px;
  position:relative;
  overflow:hidden;
}
.hero-grid{align-items:center;}
.hero-copy h1{margin-bottom:16px;}
.hero-sub{font-size:17px;color:var(--muted);max-width:560px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px;}
.hero-hints{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
  box-shadow:var(--shadow-sm);
}
.chip i{width:7px;height:7px;border-radius:50%;background:var(--success);display:inline-block;}
.hero-figure{
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-lg);
  background:var(--brand-light);
  aspect-ratio:16/10;
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}

/* 数字卡 */
.stat-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px 22px;
  height:100%;
  box-shadow:var(--shadow-sm);
  transition:box-shadow var(--ease),transform var(--ease);
}
.stat-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px);}
.stat-num{
  font-size:34px;
  font-weight:700;
  color:var(--brand);
  line-height:1.2;
  font-variant-numeric:tabular-nums;
  margin-bottom:4px;
}
.stat-num em{font-style:normal;font-size:16px;font-weight:600;color:var(--muted);margin-left:4px;}
.stat-card p{font-size:14px;color:var(--muted);}

/* 奖励卡片 */
.reward-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  height:100%;
  display:flex;
  flex-direction:column;
  box-shadow:var(--shadow-sm);
  transition:box-shadow var(--ease),transform var(--ease);
}
.reward-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px);}
.reward-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--brand-light);}
.reward-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.reward-card:hover .reward-media img{transform:scale(1.04);}
.badge{
  position:absolute;left:12px;top:12px;
  padding:5px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  background:rgba(255,255,255,.94);
  color:var(--brand-dark);
}
.badge.badge-accent{background:var(--accent);color:#3A2607;}
.badge.badge-soft{background:var(--brand-light);color:var(--brand-dark);}
.reward-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.reward-body h3{margin-bottom:8px;}
.reward-body p{font-size:14.5px;color:var(--muted);margin-bottom:16px;}
.reward-meta{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:14px;}
.reward-meta .dot{width:4px;height:4px;border-radius:50%;background:#C3D0E0;}
.reward-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;}
.status{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;color:var(--success);
}
.status::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;}
.status.status-wait{color:var(--accent-dark);}
.status.status-off{color:var(--muted);}
.link-arrow{font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.link-arrow::after{content:"→";transition:transform var(--ease);}
.link-arrow:hover::after{transform:translateX(4px);}

/* 档位与进度 */
.tier-panel{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:32px;
  box-shadow:var(--shadow-sm);
}
.progress-row{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:10px;}
.progress-row strong{font-size:15px;font-weight:600;}
.progress-row span{font-size:14px;color:var(--muted);font-variant-numeric:tabular-nums;}
.progress-track{
  height:10px;
  border-radius:999px;
  background:var(--brand-light);
  overflow:hidden;
  margin-bottom:34px;
}
.progress-fill{
  height:100%;
  border-radius:999px;
  background:linear-gradient(90deg,var(--accent) 0%,var(--brand) 100%);
}
.tier-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;}
.tier-item{
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:14px;
  padding:20px 18px;
  transition:border-color var(--ease),box-shadow var(--ease),transform var(--ease);
}
.tier-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm);}
.tier-item.is-done{background:#F1F8F4;border-color:#C9E7D8;}
.tier-item.is-current{background:#FFF7E9;border-color:var(--accent);box-shadow:0 6px 18px rgba(240,160,44,.18);}
.tier-dot{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:50%;
  background:#fff;border:2px solid var(--line);
  font-size:13px;font-weight:700;color:var(--muted);
  font-variant-numeric:tabular-nums;
  margin-bottom:12px;
}
.tier-item.is-done .tier-dot{background:var(--brand);border-color:var(--brand);color:#fff;}
.tier-item.is-current .tier-dot{background:#fff;border-color:var(--accent);color:var(--accent-dark);box-shadow:0 0 0 4px rgba(240,160,44,.16);}
.tier-item h4{font-size:16px;font-weight:600;margin-bottom:6px;}
.tier-item p{font-size:13.5px;color:var(--muted);line-height:1.75;}

/* CTA 通栏 */
.cta-band{
  background:var(--brand);
  border-radius:20px;
  padding:44px 40px;
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
}
.cta-band h2{color:#fff;margin-bottom:8px;}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto;}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.7);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;}

/* FAQ */
.faq-wrap{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
}
ul.faq-accordion{margin:0;padding:0;list-style:none;background:transparent;border:none;}
.faq-accordion .accordion-item{border-bottom:1px solid var(--line);}
.faq-accordion .accordion-item:last-child{border-bottom:none;}
.faq-accordion .accordion-title{
  position:relative;
  display:block;
  padding:20px 52px 20px 24px;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  background:#fff;
  border:none;
  line-height:1.6;
}
.faq-accordion .accordion-title:hover{color:var(--brand);background:#FBFDFF;}
.faq-accordion .accordion-title::before{content:none;display:none;}
.faq-accordion .accordion-title::after{
  content:"";
  position:absolute;
  right:24px;top:50%;
  width:9px;height:9px;
  border-right:2px solid var(--muted);
  border-bottom:2px solid var(--muted);
  transform:translateY(-70%) rotate(45deg);
  transition:transform var(--ease),border-color var(--ease);
}
.faq-accordion .accordion-title[aria-expanded="true"]{color:var(--brand);}
.faq-accordion .accordion-title[aria-expanded="true"]::after{
  transform:translateY(-30%) rotate(-135deg);
  border-color:var(--brand);
}
.faq-accordion .accordion-content{
  background:var(--bg);
  border-top:1px solid var(--line);
  padding:18px 24px;
  font-size:15px;
  line-height:1.9;
  color:var(--muted);
}
.faq-accordion .accordion-content p{font-size:15px;color:var(--muted);}

/* 页脚 */
.site-footer{background:var(--footer-bg);color:rgba(255,255,255,.76);margin-top:0;}
.footer-top{padding-top:64px;padding-bottom:40px;}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:32px;
}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:14px;}
.footer-grid p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);max-width:340px;}
.footer-col h4{font-size:15px;color:#fff;font-weight:600;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px;}
.footer-col a:hover{color:#8FC0FF;}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.68);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-top:20px;
  padding-bottom:28px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;
  color:rgba(255,255,255,.56);
}

/* 断点：1024px */
@media (max-width:1024px){
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn-accent{display:none;}
  .section{padding:68px 0;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 30px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .tier-bar{grid-template-columns:1fr 1fr;}
}
/* 断点：768px */
@media (max-width:768px){
  .hero{padding:28px 0 56px;}
  .hero-sub{font-size:16px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:28px;}
  .tier-panel{padding:24px 20px;}
  .footer-top{padding-top:48px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
/* 断点：639px */
@media (max-width:639px){
  .grid-container.site-container{padding-left:16px;padding-right:16px;}
  .grid-x.grid-margin-x{margin-left:-8px;margin-right:-8px;}
  .grid-x.grid-margin-x > .cell{padding-left:8px;padding-right:8px;}
  .section{padding:52px 0;}
  h1{font-size:26px;}
  .stat-num{font-size:28px;}
  .tier-bar{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band{padding:30px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .hero-actions .btn{width:100%;}
}
/* 断点：480px 微调 */
@media (max-width:480px){
  .brand-text{font-size:15px;}
  .header-inner{min-height:66px;gap:12px;}
  .reward-body{padding:18px 18px 20px;}
  .faq-accordion .accordion-title{padding:16px 46px 16px 18px;font-size:15px;}
  .faq-accordion .accordion-content{padding:16px 18px;}
}

/* roulang page: category3 */
:root{
  --primary:#1A5FB4;
  --primary-dark:#0F3F7E;
  --primary-light:#E8F0FC;
  --accent:#F0A02C;
  --accent-dark:#D98A18;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --line:#E3EAF3;
  --text:#1B2733;
  --muted:#5C6B7A;
  --ok:#2E9E6B;
  --footer:#0E2C4F;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(16,42,80,.06);
  --sh-2:0 10px 24px rgba(16,42,80,.12);
  --tr:.25s ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color var(--tr);}
a:hover{color:var(--primary-dark);}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;line-height:1.35;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input,textarea,select{font-family:inherit;font-size:15px;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}

.grid-container.site-container{max-width:1200px;padding-left:24px;padding-right:24px;}
.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.4;cursor:pointer;
  transition:background var(--tr),color var(--tr),border-color var(--tr),box-shadow var(--tr),transform var(--tr);
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);background:var(--primary-dark);}
.btn-accent{background:var(--accent);color:#1B2733;box-shadow:var(--sh-1);}
.btn-accent:hover{background:var(--accent-dark);color:#1B2733;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-accent:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--primary);}
.btn-ghost:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-pill{border-radius:var(--r-pill);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.btn:disabled,.btn.is-disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none;}
.link-more{font-size:14px;font-weight:600;color:var(--primary);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;}
.link-more:hover{color:var(--accent-dark);}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;line-height:1.5;
  background:var(--primary-light);color:var(--primary-dark);
}
.badge-accent{background:#FDF1DC;color:#8A5A0B;}
.badge-ok{background:#E4F4EC;color:#1E7A50;}
.badge-plain{background:#EEF3F9;color:var(--muted);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:50;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--tr);
}
.site-header.is-scrolled{box-shadow:0 4px 18px rgba(16,42,80,.08);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:74px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-size:17px;font-weight:700;letter-spacing:.2px;white-space:nowrap;}
.brand:hover{color:var(--primary);}
.brand-mark{display:inline-flex;width:38px;height:38px;flex:0 0 38px;}
.brand-mark svg{width:38px;height:38px;display:block;}
.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{
  display:inline-flex;align-items:center;padding:9px 16px;border-radius:var(--r-pill);
  color:#33424F;font-size:15px;font-weight:500;
  transition:background var(--tr),color var(--tr);
}
.nav-link:hover{background:var(--primary-light);color:var(--primary);}
.nav-link.is-active{background:var(--primary);color:#fff;}
.nav-link.is-active:hover{background:var(--primary-dark);color:#fff;}
.drawer-head{display:none;}
.nav-cta{display:none;}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 11px;border-radius:12px;
  background:#fff;border:1px solid var(--line);cursor:pointer;
  transition:background var(--tr),border-color var(--tr);
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--primary-dark);transition:transform var(--tr),opacity var(--tr);}
.nav-toggle:hover{background:var(--primary-light);border-color:var(--primary-light);}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
body.nav-open .nav-toggle span:nth-child(2){opacity:0;}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,44,79,.42);
  opacity:0;visibility:hidden;transition:opacity var(--tr),visibility var(--tr);z-index:65;
}
body.nav-open .drawer-mask{opacity:1;visibility:visible;}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:780px;margin-bottom:36px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head h2{font-size:30px;margin-bottom:12px;}
.section-head p{color:var(--muted);font-size:16px;}
.eyebrow{display:inline-block;margin-bottom:12px;font-size:13px;font-weight:600;letter-spacing:1px;color:var(--primary);text-transform:none;}

/* ============ 首屏 KV ============ */
.page-hero{position:relative;overflow:hidden;background:#fff;padding:44px 0 68px;border-bottom:1px solid var(--line);}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.13;
}
.page-hero>.grid-container{position:relative;z-index:1;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:26px;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:#AFC0D2;}
.breadcrumb .current{color:var(--text);font-weight:600;}
.hero-split{align-items:center;}
.hero-copy h1{font-size:clamp(26px,3.2vw,42px);font-weight:700;line-height:1.3;margin:14px 0 16px;}
.hero-sub{font-size:17px;color:var(--muted);max-width:560px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-media img{
  width:100%;height:auto;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-img);box-shadow:var(--sh-2);
}
.hero-facts{display:flex;flex-wrap:wrap;gap:26px;margin-top:30px;padding-top:22px;border-top:1px solid var(--line);}
.hero-fact strong{display:block;font-size:22px;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.3;}
.hero-fact span{font-size:13px;color:var(--muted);}

/* ============ 时间轴 ============ */
.timeline{position:relative;max-width:920px;margin:0 auto;padding-left:6px;}
.timeline::before{
  content:"";position:absolute;left:22px;top:12px;bottom:26px;width:2px;
  background:linear-gradient(180deg,var(--primary) 0%,var(--primary-light) 100%);
  border-radius:2px;
}
.timeline-item{position:relative;padding:0 0 34px 66px;}
.timeline-item:last-child{padding-bottom:0;}
.tl-node{
  position:absolute;left:0;top:0;width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;
  background:#fff;border:2px solid var(--line);color:var(--muted);
}
.tl-node.done{background:var(--primary);border-color:var(--primary);color:#fff;}
.tl-node.current{
  background:#fff;border-color:var(--primary);color:var(--primary);
  box-shadow:0 0 0 6px rgba(26,95,180,.14);
}
.tl-body{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--sh-1);transition:box-shadow var(--tr),transform var(--tr);}
.timeline-item:hover .tl-body{box-shadow:var(--sh-2);transform:translateY(-3px);}
.tl-body h3{font-size:19px;margin-bottom:8px;}
.tl-body p{color:var(--muted);font-size:15px;margin-bottom:12px;}
.tl-meta{display:flex;flex-wrap:wrap;gap:10px;}

/* ============ 图文并排 ============ */
.split-media img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);box-shadow:var(--sh-1);}
.split-copy h2{font-size:30px;margin-bottom:16px;}
.split-copy p{color:var(--muted);}
.check-list{margin-top:22px;}
.check-list li{position:relative;padding-left:30px;margin-bottom:14px;font-size:15px;color:#33424F;}
.check-list li::before{
  content:"";position:absolute;left:4px;top:11px;width:12px;height:7px;
  border-left:2.4px solid var(--ok);border-bottom:2.4px solid var(--ok);
  transform:rotate(-45deg);border-radius:1px;
}
.check-list li:last-child{margin-bottom:0;}

/* ============ 编号规则列表 ============ */
.rule-list{counter-reset:rule;}
.rule-list li{
  position:relative;padding:0 0 20px 56px;counter-increment:rule;
  border-bottom:1px dashed var(--line);margin-bottom:20px;
}
.rule-list li:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0;}
.rule-list li::before{
  content:counter(rule,decimal-leading-zero);
  position:absolute;left:0;top:2px;width:38px;height:38px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-light);color:var(--primary-dark);
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
}
.rule-list h3{font-size:17px;margin-bottom:6px;}
.rule-list p{color:var(--muted);font-size:15px;margin:0;}

/* ============ FAQ ============ */
.faq-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:20px 58px 20px 24px;font-size:16px;font-weight:600;color:var(--text);
  transition:background var(--tr),color var(--tr);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:var(--primary-light);color:var(--primary-dark);}
.faq-item summary::after{
  content:"";position:absolute;right:26px;top:50%;
  width:9px;height:9px;border-right:2px solid var(--primary);border-bottom:2px solid var(--primary);
  transform:translateY(-70%) rotate(45deg);transition:transform var(--tr);
}
.faq-item[open] summary{color:var(--primary-dark);background:var(--primary-light);}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg);}
.faq-body{background:var(--bg);padding:18px 24px 22px;font-size:15px;color:#33424F;line-height:1.9;}
.faq-body p{margin:0;}

/* ============ CTA 通栏 ============ */
.cta-band{
  background:var(--primary);color:#fff;border-radius:24px;
  padding:48px;box-shadow:0 18px 36px rgba(16,42,80,.18);
}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.82);max-width:640px;font-size:16px;margin-bottom:24px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}
.cta-note{margin-top:18px;font-size:13px;color:rgba(255,255,255,.7);}

/* ============ 页脚 ============ */
.site-footer{background:var(--footer);color:rgba(255,255,255,.72);margin-top:88px;}
.footer-top{padding:64px 0 40px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:12px;color:#fff;font-size:18px;font-weight:700;margin-bottom:16px;}
.footer-grid p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-col ul li{margin-bottom:11px;font-size:14px;}
.footer-col ul li:last-child{margin-bottom:0;}
.footer-col a{color:rgba(255,255,255,.72);}
.footer-col a:hover{color:#9CC4F0;}
.footer-contact li{color:rgba(255,255,255,.66);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  padding-top:20px;padding-bottom:26px;border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ============ 表单基础样式（设计系统预留） ============ */
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--text);}
.field .req{color:#C0392B;margin-left:4px;}
.input,.textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;color:var(--text);transition:border-color var(--tr),box-shadow var(--tr);
}
.input:focus,.textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(26,95,180,.14);}
.field.has-error .input,.field.has-error .textarea{border-color:#C0392B;}
.field-hint{font-size:13px;color:var(--muted);margin-top:6px;}
.field-error{font-size:13px;color:#C0392B;margin-top:6px;display:none;}
.field.has-error .field-error{display:block;}

/* Foundation 默认样式覆盖 */
.accordion{border:0;background:transparent;}
.button{border-radius:var(--r-btn);box-shadow:none;font-family:inherit;}
a.button{color:#fff;}

/* ============ 响应式 ============ */
@media screen and (max-width:1024px){
  .grid-container.site-container{padding-left:20px;padding-right:20px;}
  .section{padding:68px 0;}
  .section-head h2{font-size:26px;}
  .split-copy h2{font-size:26px;}
  .nav-toggle{display:flex;}
  .header-cta{display:none;}
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);
    flex-direction:column;align-items:stretch;gap:6px;
    background:#fff;padding:18px 20px 26px;
    box-shadow:-14px 0 34px rgba(16,42,80,.16);
    transform:translateX(104%);transition:transform .3s ease;
    z-index:70;overflow-y:auto;
  }
  body.nav-open .main-nav{transform:translateX(0);}
  .drawer-head{
    display:flex;align-items:center;justify-content:space-between;
    padding-bottom:14px;margin-bottom:10px;border-bottom:1px solid var(--line);
    font-size:16px;font-weight:700;color:var(--text);
  }
  .drawer-close{
    width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:#fff;
    color:var(--primary-dark);font-size:18px;line-height:1;cursor:pointer;
  }
  .drawer-close:hover{background:var(--primary-light);border-color:var(--primary-light);}
  .nav-link{padding:13px 16px;border-radius:12px;font-size:16px;}
  .nav-cta{display:flex;width:100%;margin-top:18px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media screen and (max-width:767px){
  .grid-container.site-container{padding-left:16px;padding-right:16px;}
  .grid-margin-x{margin-left:-8px;margin-right:-8px;}
  .grid-margin-x>.cell{padding-left:8px;padding-right:8px;}
  .section{padding:54px 0;}
  .page-hero{padding:32px 0 48px;}
  .hero-sub{font-size:16px;}
  .hero-media{margin-top:28px;}
  .timeline::before{left:17px;}
  .timeline-item{padding-left:52px;}
  .tl-node{width:36px;height:36px;font-size:13px;}
  .tl-body{padding:18px 18px;}
  .cta-band{padding:32px 22px;border-radius:18px;}
  .cta-band h2{font-size:23px;}
  .cta-actions .btn{width:100%;}
  .faq-item summary{padding:17px 50px 17px 18px;font-size:15px;}
  .faq-item summary::after{right:20px;}
  .faq-body{padding:16px 18px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-top{padding:44px 0 30px;}
  .site-footer{margin-top:60px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px;}
}
@media screen and (max-width:480px){
  .hero-copy h1{font-size:24px;}
  .section-head h2,.split-copy h2{font-size:22px;}
  .hero-facts{gap:18px;}
  .hero-fact strong{font-size:19px;}
  .brand-name{font-size:15px;}
  .brand-mark,.brand-mark svg{width:32px;height:32px;flex-basis:32px;}
  .header-inner{min-height:66px;}
  .btn{padding:11px 18px;font-size:14px;}
}

/* roulang page: category4 */
:root{
  --primary:#1A5FB4;
  --primary-dark:#0F3F7E;
  --primary-light:#E8F0FC;
  --accent:#F0A02C;
  --accent-dark:#DB8E16;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --line:#E3EAF3;
  --text:#1B2733;
  --muted:#5C6B7A;
  --success:#2E9E6B;
  --danger:#D64545;
  --dark:#0E2C4F;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow:0 2px 8px rgba(16,42,80,.06);
  --shadow-hover:0 10px 24px rgba(16,42,80,.12);
  --t:.25s ease;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{display:block;max-width:100%;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color var(--t),background-color var(--t);}
a:hover{color:var(--primary-dark);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{list-style:none;padding:0;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;}
::selection{background:var(--primary-light);color:var(--primary-dark);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
}

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

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  cursor:pointer;
  transition:transform var(--t),background-color var(--t),color var(--t),box-shadow var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn-pill{border-radius:999px;padding:11px 22px;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 12px rgba(26,95,180,.22);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 20px rgba(15,63,126,.24);}
.btn-primary:active{transform:translateY(0);box-shadow:0 2px 6px rgba(15,63,126,.24);}
.btn-accent{background:var(--accent);color:#3B2A06;box-shadow:0 4px 12px rgba(240,160,44,.28);}
.btn-accent:hover{background:var(--accent-dark);color:#3B2A06;transform:translateY(-2px);box-shadow:0 10px 20px rgba(219,142,22,.3);}
.btn-accent:active{transform:translateY(0);}
.btn-ghost{background:#fff;border-color:var(--primary);color:var(--primary);}
.btn-ghost:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-outline-light{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.55);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.18);color:#fff;transform:translateY(-2px);}
.btn:disabled,.btn.is-disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t);
}
.site-header.is-scrolled{box-shadow:0 4px 18px rgba(16,42,80,.09);}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  min-height:74px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.brand-mark{
  display:inline-flex;
  width:38px;
  height:38px;
  border-radius:12px;
  background:var(--primary-light);
  align-items:center;
  justify-content:center;
}
.brand-mark svg{display:block;}
.brand-text{
  font-size:17px;
  font-weight:700;
  color:var(--text);
  letter-spacing:.2px;
}
.brand:hover .brand-text{color:var(--primary-dark);}

.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  background:var(--bg);
  border-radius:999px;
  padding:5px;
}
.nav-link{
  display:inline-block;
  padding:8px 16px;
  border-radius:999px;
  font-size:15px;
  color:var(--muted);
  font-weight:500;
  transition:background-color var(--t),color var(--t);
}
.nav-link:hover{background:#fff;color:var(--primary);}
.nav-link.is-active{background:var(--primary);color:#fff;box-shadow:0 4px 10px rgba(26,95,180,.24);}
.nav-link.is-active:hover{background:var(--primary-dark);color:#fff;}

.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  cursor:pointer;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:4px;
  padding:0;
  transition:border-color var(--t),background-color var(--t);
}
.nav-toggle:hover{border-color:var(--primary);background:var(--primary-light);}
.nav-toggle span{display:block;width:16px;height:2px;border-radius:2px;background:var(--text);}

/* 移动端抽屉 */
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(14,44,79,.42);
  opacity:0;
  visibility:hidden;
  transition:opacity var(--t),visibility var(--t);
  z-index:70;
}
.mobile-drawer{
  position:fixed;
  top:0;
  right:0;
  width:300px;
  max-width:86vw;
  height:100%;
  background:#fff;
  z-index:80;
  transform:translateX(102%);
  transition:transform .3s ease;
  display:flex;
  flex-direction:column;
  padding:22px 20px 26px;
  box-shadow:-12px 0 30px rgba(14,44,79,.16);
  overflow-y:auto;
}
body.drawer-open .mobile-drawer{transform:translateX(0);}
body.drawer-open .drawer-mask{opacity:1;visibility:visible;}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
}
.drawer-close{
  width:34px;
  height:34px;
  border-radius:10px;
  border:1px solid var(--line);
  background:#fff;
  font-size:18px;
  line-height:1;
  color:var(--muted);
  cursor:pointer;
}
.drawer-close:hover{background:var(--primary-light);color:var(--primary-dark);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;padding:16px 0;flex:1 1 auto;}
.drawer-nav a{
  display:block;
  padding:12px 14px;
  border-radius:12px;
  font-size:15px;
  color:var(--text);
  font-weight:500;
}
.drawer-nav a:hover{background:var(--bg);color:var(--primary);}
.drawer-nav a.is-active{background:var(--primary);color:#fff;}
.drawer-cta{width:100%;}

/* ============ 首屏 ============ */
.page-hero{
  background:#EFF5FD;
  border-bottom:1px solid var(--line);
  padding:56px 0 52px;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:#fff;
  border:1px solid #D3E2F7;
  color:var(--primary-dark);
  font-size:13px;
  font-weight:600;
  margin-bottom:16px;
}
.hero-badge::before{
  content:"";
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--accent);
}
.page-hero h1{
  font-size:clamp(26px,3.2vw,40px);
  font-weight:700;
  line-height:1.3;
  letter-spacing:.2px;
  color:var(--text);
}
.hero-sub{
  margin-top:16px;
  font-size:16px;
  line-height:1.85;
  color:var(--muted);
  max-width:560px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-media{
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:0 14px 34px rgba(16,42,80,.14);
  background:#fff;
}
.hero-media img{width:100%;aspect-ratio:16/9;object-fit:cover;}

/* ============ 面包屑 ============ */
.breadcrumb{background:#fff;border-bottom:1px solid var(--line);}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:13px;color:var(--muted);}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:#B7C4D4;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb li[aria-current]{color:var(--text);font-weight:600;}

/* ============ 板块通用 ============ */
.section{padding:88px 0;}
.section.is-white{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{
  font-size:clamp(23px,2.3vw,30px);
  font-weight:700;
  line-height:1.35;
  letter-spacing:.2px;
}
.section-head h2::after{
  content:"";
  display:block;
  width:48px;
  height:4px;
  border-radius:999px;
  background:var(--accent);
  margin-top:14px;
}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px;}

/* ============ 速览卡片 ============ */
.quick-grid{margin-top:-12px;}
.quick-col{padding-top:12px;}
.quick-card{
  display:block;
  height:100%;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px 22px;
  box-shadow:var(--shadow);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.quick-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#CFDFF5;}
.quick-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;
  height:40px;
  border-radius:12px;
  background:var(--primary-light);
  color:var(--primary-dark);
  font-size:14px;
  font-weight:700;
  margin-bottom:16px;
}
.quick-card h3{font-size:18px;font-weight:600;line-height:1.5;}
.quick-card p{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.8;}
.quick-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:16px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
}
.quick-more::after{content:"→";transition:transform var(--t);}
.quick-card:hover .quick-more::after{transform:translateX(3px);}

/* ============ 自助排查 ============ */
.diagnose-media{
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:0 12px 30px rgba(16,42,80,.12);
  background:#fff;
}
.diagnose-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.diagnose-body h2{
  font-size:clamp(22px,2.2vw,28px);
  font-weight:700;
  line-height:1.4;
}
.diagnose-body>p{margin-top:14px;color:var(--muted);}
.step-list{margin-top:26px;counter-reset:step;}
.step-list li{
  position:relative;
  padding:16px 0 16px 56px;
  border-top:1px dashed var(--line);
}
.step-list li:first-child{border-top:0;}
.step-list li::before{
  counter-increment:step;
  content:"0" counter(step);
  position:absolute;
  left:0;
  top:16px;
  width:36px;
  height:36px;
  border-radius:50%;
  background:var(--primary);
  color:#fff;
  font-size:13px;
  font-weight:700;
  display:flex;
  align-items:center;
  justify-content:center;
}
.step-list strong{display:block;font-size:16px;font-weight:600;}
.step-list span{display:block;margin-top:4px;font-size:14px;color:var(--muted);}

/* ============ FAQ ============ */
.faq-col{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  overflow:hidden;
  transition:border-color var(--t),box-shadow var(--t);
}
.faq-item:hover{border-color:#CFDFF5;box-shadow:var(--shadow);}
.faq-item.is-open{border-color:#C6DCF7;box-shadow:0 8px 20px rgba(16,42,80,.08);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 20px;
  background:none;
  border:0;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  cursor:pointer;
  line-height:1.6;
  transition:background-color var(--t),color var(--t);
}
.faq-q:hover{background:var(--primary-light);color:var(--primary-dark);}
.faq-icon{
  position:relative;
  flex:0 0 24px;
  width:24px;
  height:24px;
  border-radius:50%;
  background:var(--primary-light);
  transition:transform var(--t),background-color var(--t);
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  top:50%;
  left:50%;
  background:var(--primary-dark);
  border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:11px;height:2px;}
.faq-icon::after{width:2px;height:11px;transition:opacity var(--t);}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:var(--primary);}
.faq-item.is-open .faq-icon::before,.faq-item.is-open .faq-icon::after{background:#fff;}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-a{display:none;}
.faq-item.is-open .faq-a{
  display:block;
  padding:16px 20px 20px;
  background:var(--bg);
  border-top:1px solid var(--line);
}
.faq-a p{font-size:15px;line-height:1.9;color:var(--muted);}

/* ============ 对照表 ============ */
.table-wrap{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow-x:auto;
  box-shadow:var(--shadow);
  -webkit-overflow-scrolling:touch;
}
table.info-table{
  width:100%;
  min-width:780px;
  border-collapse:collapse;
}
table.info-table caption{
  caption-side:top;
  text-align:left;
  padding:16px 20px 4px;
  font-size:13px;
  color:var(--muted);
}
table.info-table th{
  background:var(--primary-light);
  color:var(--primary-dark);
  font-size:14px;
  font-weight:600;
  text-align:left;
  padding:15px 20px;
  white-space:nowrap;
}
table.info-table td{
  padding:15px 20px;
  font-size:15px;
  color:var(--text);
  border-top:1px solid var(--line);
  vertical-align:top;
  line-height:1.75;
}
table.info-table tbody tr:nth-child(even) td{background:#FAFCFF;}
table.info-table tbody tr:hover td{background:#F1F7FF;}
.tag{
  display:inline-block;
  padding:3px 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  background:var(--primary-light);
  color:var(--primary-dark);
}
.tag.is-warn{background:#FDF1DE;color:#8A5A05;}
.tag.is-ok{background:#E5F6EE;color:#1D6E4A;}

/* ============ 反馈表单 ============ */
.feedback-intro h2{
  font-size:clamp(22px,2.2vw,28px);
  font-weight:700;
  line-height:1.4;
}
.feedback-intro>p{margin-top:14px;color:var(--muted);}
.tip-list{margin-top:22px;display:flex;flex-direction:column;gap:10px;}
.tip-list li{
  position:relative;
  padding-left:26px;
  font-size:15px;
  color:var(--text);
}
.tip-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:14px;
  height:14px;
  border-radius:50%;
  background:var(--primary-light);
  border:2px solid var(--primary);
}
.help-form{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px 26px 26px;
  box-shadow:var(--shadow);
}
.form-row{margin-bottom:18px;}
.form-row label{
  display:block;
  font-size:14px;
  font-weight:600;
  margin-bottom:8px;
  color:var(--text);
}
.req{color:var(--danger);margin-left:4px;}
.form-row input,.form-row select,.form-row textarea{
  width:100%;
  padding:12px 14px;
  font-size:15px;
  color:var(--text);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  transition:border-color var(--t),box-shadow var(--t);
  appearance:none;
}
.form-row textarea{min-height:130px;resize:vertical;line-height:1.8;}
.form-row select{
  background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);
  background-position:calc(100% - 20px) 50%,calc(100% - 14px) 50%;
  background-size:6px 6px,6px 6px;
  background-repeat:no-repeat;
  padding-right:40px;
}
.form-row input::placeholder,.form-row textarea::placeholder{color:#9AA8B8;}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(26,95,180,.14);
}
.hint{display:block;margin-top:6px;font-size:13px;color:var(--muted);}
.form-row.has-error input,.form-row.has-error select,.form-row.has-error textarea{
  border-color:var(--danger);
  box-shadow:0 0 0 3px rgba(214,69,69,.12);
}
.error-text{display:none;margin-top:6px;font-size:13px;color:var(--danger);}
.form-row.has-error .error-text{display:block;}
.form-actions{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:16px;
  margin-top:6px;
  padding-top:18px;
  border-top:1px solid var(--line);
}
.form-actions .hint{margin:0;}

/* ============ CTA 通栏 ============ */
.cta-band{padding:0 0 88px;}
.cta-inner{
  background:var(--primary);
  border-radius:22px;
  padding:44px 40px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  box-shadow:0 18px 40px rgba(15,63,126,.22);
}
.cta-inner h2{
  font-size:clamp(21px,2.1vw,26px);
  font-weight:700;
  color:#fff;
  line-height:1.4;
}
.cta-inner p{margin-top:10px;color:rgba(255,255,255,.82);font-size:15px;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.78);padding-top:64px;}
.footer-top{padding-bottom:44px;}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:36px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:#fff;
  margin-bottom:14px;
}
.site-footer p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.78);}
.footer-col a:hover{color:#A9C9F5;}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.68);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding-top:22px;
  padding-bottom:26px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;
  color:rgba(255,255,255,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .main-nav{display:none;}
  .header-actions .btn-pill{display:none;}
  .nav-toggle{display:flex;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .section{padding:72px 0;}
  .section-head{margin-bottom:34px;}
  .cta-band{padding-bottom:72px;}
}

@media (max-width:767px){
  .page-hero{padding:40px 0 38px;}
  .hero-sub{font-size:15px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:28px;}
  .quick-card{padding:20px 18px;}
  .help-form{padding:22px 18px;}
  .cta-inner{padding:32px 22px;border-radius:18px;}
  .cta-band{padding-bottom:56px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

@media (max-width:520px){
  .site-container{padding-left:16px;padding-right:16px;}
  .brand-text{font-size:15px;}
  .header-inner{min-height:64px;}
  .page-hero h1{font-size:24px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-badge{font-size:12px;}
  .step-list li{padding-left:48px;}
  .step-list li::before{width:32px;height:32px;font-size:12px;}
  .form-actions{flex-direction:column;align-items:stretch;}
  .form-actions .btn{width:100%;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;}
}