/* roulang page: index */
:root{
  --c-primary:#1A5FBF;
  --c-primary-deep:#0E3F86;
  --c-primary-soft:rgba(26,95,191,.08);
  --c-accent:#12C2C9;
  --c-accent-soft:rgba(18,194,201,.12);
  --c-cta:#FF7A2F;
  --c-cta-dark:#E8651C;
  --c-bg:#F3F7FC;
  --c-bg-soft:#E9F0FA;
  --c-surface:#FFFFFF;
  --c-text:#101E33;
  --c-text-2:#4E6178;
  --c-text-3:#8698AE;
  --c-line:#DFE8F4;
  --c-ok:#16A34A;
  --r-card:16px;
  --r-lg:24px;
  --r-pill:999px;
  --r-input:12px;
  --sh-1:0 8px 24px rgba(20,60,120,.08);
  --sh-2:0 16px 40px rgba(20,60,120,.14);
  --wrap:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary-deep)}
h1,h2,h3,h4{margin:0;font-weight:600;color:var(--c-text);letter-spacing:0}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 40px;width:100%}
.section{padding:96px 0}
.section--tight{padding:64px 0}
.section-head{margin-bottom:40px;max-width:760px}
.section-head h2{font-size:28px;line-height:1.35;margin-bottom:12px}
.section-head .lead{color:var(--c-text-2);font-size:16px}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;flex-wrap:wrap}
.h2-bar{position:relative;padding-left:16px}
.h2-bar::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:6px;border-radius:3px;background:linear-gradient(180deg,var(--c-primary),var(--c-accent))}

/* ============ 顶部悬浮胶囊导航 ============ */
.site-header{position:sticky;top:16px;z-index:90;padding:0 20px}
.nav-pill{
  max-width:1120px;margin:0 auto;min-height:64px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:8px 20px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border:1px solid var(--c-line);box-shadow:var(--sh-1);
}
.nav-brand{display:flex;flex-direction:column;justify-content:center;line-height:1.25;flex:0 0 auto}
.nav-brand .brand-name{font-size:17px;font-weight:700;color:var(--c-primary-deep);letter-spacing:.2px}
.nav-brand .brand-sub{font-size:11px;color:var(--c-text-3);letter-spacing:1px}
.nav-links{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center;flex-wrap:nowrap}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;
  font-size:15px;font-weight:500;color:var(--c-text-2);border-radius:var(--r-pill);
  white-space:nowrap;transition:color .2s ease,background-color .2s ease;
}
.nav-links a:hover{color:var(--c-primary);background:var(--c-primary-soft)}
.nav-links a.is-active{color:var(--c-primary);font-weight:600}
.nav-links a.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;border-radius:2px;background:var(--c-primary)}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:50%;border:1px solid var(--c-line);
  background:#fff;color:var(--c-primary-deep);align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:currentColor;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:currentColor}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-panel{
  display:none;position:fixed;left:16px;right:16px;top:90px;z-index:95;
  background:#fff;border:1px solid var(--c-line);border-radius:20px;padding:10px;
  box-shadow:var(--sh-2);
}
.mobile-panel.is-open{display:block}
.mobile-panel a{
  display:flex;align-items:center;min-height:48px;padding:0 16px;font-size:16px;
  color:var(--c-text);border-bottom:1px solid var(--c-bg-soft);border-radius:12px;
}
.mobile-panel a:last-child{border-bottom:0}
.mobile-panel a.is-active{color:var(--c-primary);font-weight:600;background:var(--c-primary-soft)}

/* ============ 按钮 / 徽章 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 28px;border-radius:var(--r-pill);
  font-size:16px;font-weight:600;border:1.5px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--c-cta);color:#fff;box-shadow:0 10px 22px rgba(255,122,47,.28)}
.btn-primary:hover{background:var(--c-cta-dark);color:#fff;transform:translateY(-1px);box-shadow:0 14px 28px rgba(255,122,47,.32)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:rgba(26,95,191,.55)}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-deep);border-color:var(--c-primary)}
.btn-sm{min-height:44px;padding:0 22px;font-size:15px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c-primary)}
.text-link:hover{text-decoration:underline;color:var(--c-primary-deep)}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.2px;
  background:var(--c-primary-soft);color:var(--c-primary);
}
.badge-accent{background:var(--c-accent-soft);color:#0B8F95}
.badge-oncover{background:rgba(255,255,255,.94);color:var(--c-primary-deep);box-shadow:0 4px 12px rgba(16,30,51,.16)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--c-accent-soft);color:#0B8F95;font-size:13px;font-weight:600;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent)}

/* ============ Hero ============ */
.hero{position:relative;padding:56px 0 88px;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(26,95,191,.14) 1px,transparent 1px);
  background-size:22px 22px;opacity:.5;pointer-events:none;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
}
.hero .wrap{position:relative;z-index:1}
.hero-grid{align-items:center}
.hero-copy h1{font-size:40px;line-height:1.25;font-weight:700;margin:20px 0 18px;letter-spacing:-.2px}
.hero-copy h1 em{font-style:normal;color:var(--c-primary);position:relative}
.hero-sub{font-size:17px;color:var(--c-text-2);max-width:540px;line-height:1.85}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 30px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:10px}
.metric-chip{
  display:flex;align-items:baseline;gap:8px;padding:10px 18px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--c-line);box-shadow:var(--sh-1);
}
.metric-chip .num{font-size:20px;font-weight:700;color:var(--c-primary-deep);line-height:1}
.metric-chip .lab{font-size:13px;color:var(--c-text-3)}
.hero-visual{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2)}
.hero-visual img{width:100%;aspect-ratio:16/12;object-fit:cover;transition:transform .5s ease}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(14,63,134,.10) 0%,rgba(14,63,134,.52) 100%);
}
.hero-float{
  position:absolute;left:20px;bottom:20px;z-index:2;background:rgba(255,255,255,.94);
  border-radius:14px;padding:12px 16px;box-shadow:0 10px 24px rgba(16,30,51,.18);
  display:flex;align-items:center;gap:10px;max-width:260px;
}
.hero-float .dot{width:10px;height:10px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 0 4px rgba(18,194,201,.22);flex:0 0 auto}
.hero-float strong{font-size:14px;color:var(--c-text);display:block;line-height:1.4}
.hero-float span{font-size:12px;color:var(--c-text-3)}

/* ============ 信任条 ============ */
.trust-bar{
  display:flex;flex-wrap:wrap;justify-content:center;gap:12px 26px;
  padding:20px 26px;background:#fff;border:1px solid var(--c-line);
  border-radius:20px;box-shadow:var(--sh-1);
}
.trust-item{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--c-text-2)}
.trust-item::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--c-accent)}

/* ============ 痛点卡片 ============ */
.pain-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.pain-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease;
}
.pain-card:nth-child(2n){transform:translateY(24px)}
.pain-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.pain-card:nth-child(2n):hover{transform:translateY(20px)}
.pain-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--c-accent-soft);color:var(--c-primary);font-size:19px;font-weight:700;margin-bottom:16px;
}
.pain-card h3{font-size:18px;margin-bottom:10px;line-height:1.5}
.pain-card p{font-size:15px;color:var(--c-text-2);line-height:1.8}

/* ============ 解决方案 ============ */
.sol-row{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.sol-row + .sol-row{margin-top:64px}
.sol-row--rev .sol-media{order:2}
.sol-media{border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);background:#fff}
.sol-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s ease}
.sol-media:hover img{transform:scale(1.04)}
.sol-text h3{font-size:21px;margin-bottom:14px;line-height:1.5}
.sol-text p{color:var(--c-text-2)}
.sol-points{margin-top:18px;display:grid;gap:10px}
.sol-points li{display:flex;gap:10px;font-size:15px;color:var(--c-text-2);line-height:1.75}
.sol-points li::before{
  content:"✓";flex:0 0 auto;width:20px;height:20px;margin-top:5px;border-radius:50%;
  background:var(--c-accent-soft);color:#0B8F95;font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.step-line{margin-top:22px;display:grid;gap:14px}
.step-item{display:flex;gap:14px;align-items:flex-start}
.step-idx{
  flex:0 0 auto;width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
  color:#fff;font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.step-item strong{display:block;font-size:15px;font-weight:600;margin-bottom:2px}
.step-item span{font-size:14px;color:var(--c-text-2);line-height:1.7}

/* ============ 成果面板 ============ */
.result-panel{
  background:linear-gradient(135deg,var(--c-primary-deep) 0%,#164C9E 60%,#1A5FBF 100%);
  border-radius:var(--r-lg);padding:52px 48px;color:#fff;position:relative;overflow:hidden;
}
.result-panel::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,194,201,.35),transparent 68%);
}
.result-panel h2{color:#fff;font-size:27px;margin-bottom:12px}
.result-panel .lead{color:rgba(255,255,255,.78);max-width:620px;margin-bottom:36px}
.result-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;position:relative;z-index:1}
.result-item{border-left:3px solid rgba(18,194,201,.75);padding-left:16px}
.result-item .val{font-size:34px;font-weight:700;line-height:1.2;color:#fff}
.result-item .val small{font-size:15px;font-weight:600;margin-left:4px;color:rgba(255,255,255,.82)}
.result-item .lab{font-size:13px;color:rgba(255,255,255,.72);margin-top:6px}
.bar-wrap{margin-top:40px;position:relative;z-index:1}
.bar-top{display:flex;justify-content:space-between;font-size:14px;color:rgba(255,255,255,.82);margin-bottom:10px}
.bar{height:10px;border-radius:var(--r-pill);background:rgba(255,255,255,.18);overflow:hidden}
.bar-fill{height:100%;width:99.6%;border-radius:var(--r-pill);background:linear-gradient(90deg,var(--c-accent),var(--c-cta))}

/* ============ 证言 ============ */
.quote-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:24px;align-items:start}
.quote-card{
  position:relative;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:30px;box-shadow:var(--sh-1);
}
.quote-card::before{
  content:"“";position:absolute;top:8px;right:22px;font-size:64px;line-height:1;
  color:var(--c-primary-soft);font-family:Georgia,serif;
}
.quote-card p{font-size:16px;color:var(--c-text-2);line-height:1.85;position:relative;z-index:1}
.quote-user{display:flex;align-items:center;gap:14px;margin-top:22px}
.quote-user img{width:48px;height:48px;border-radius:50%;object-fit:cover}
.quote-user strong{display:block;font-size:15px}
.quote-user span{font-size:13px;color:var(--c-text-3)}
.stars{color:#FFB020;font-size:14px;letter-spacing:2px;margin-top:14px;display:block}

/* ============ 资讯列表 ============ */
.chips{display:flex;gap:10px;overflow-x:auto;padding-bottom:6px;margin-bottom:28px;scrollbar-width:none}
.chips::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--c-line);font-size:14px;color:var(--c-text-2);
  transition:all .2s ease;
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary)}
.chip.is-on{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600}
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.news-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease;display:flex;flex-direction:column;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.news-link{display:flex;flex-direction:column;height:100%;color:inherit}
.news-link:hover{color:inherit}
.news-cover{position:relative;overflow:hidden}
.news-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease}
.news-card:hover .news-cover img{transform:scale(1.04)}
.news-cover .badge{position:absolute;left:14px;top:14px}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.news-title{
  font-size:17px;font-weight:600;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-excerpt{
  font-size:14px;color:var(--c-text-2);line-height:1.75;margin-bottom:16px;flex:1 1 auto;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--c-text-3);border-top:1px solid var(--c-bg-soft);padding-top:14px;
}
.news-more{color:var(--c-primary);font-weight:600;transition:transform .2s ease}
.news-card:hover .news-more{transform:translateX(4px)}
.news-empty{
  background:var(--c-accent-soft);border:1px dashed rgba(18,194,201,.5);border-radius:var(--r-card);
  padding:44px 28px;text-align:center;
}
.news-empty .ico{font-size:26px;color:#0B8F95;margin-bottom:10px}
.news-empty p{color:var(--c-text-2);margin-bottom:18px}

/* ============ FAQ ============ */
.accordion{border:0;background:transparent;margin:0}
.accordion .accordion-item{
  border:1px solid var(--c-line);background:#fff;border-radius:var(--r-card);
  margin-bottom:8px;box-shadow:var(--sh-1);overflow:hidden;
}
.accordion .accordion-title{
  font-size:17px;font-weight:600;color:var(--c-text);padding:20px 56px 20px 24px;border:0;
  position:relative;line-height:1.6;transition:background-color .2s ease,color .2s ease;
}
.accordion .accordion-title:hover{background:var(--c-bg-soft);color:var(--c-primary)}
.accordion .accordion-title::before{
  content:"";position:absolute;right:24px;top:50%;width:14px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:translateY(-50%);
}
.accordion .accordion-title::after{
  content:"";position:absolute;right:30px;top:50%;width:2px;height:14px;border-radius:2px;
  background:var(--c-primary);transform:translateY(-50%);transition:opacity .2s ease;
}
.accordion .accordion-item.is-active{border-color:rgba(26,95,191,.4)}
.accordion .accordion-item.is-active .accordion-title{
  background:var(--c-bg);color:var(--c-primary);padding-left:28px;
}
.accordion .accordion-item.is-active .accordion-title::before{left:12px;right:auto;top:16px;bottom:16px;height:auto;width:3px;border-radius:2px;transform:none}
.accordion .accordion-item.is-active .accordion-title::after{opacity:0}
.accordion .accordion-content{
  border:0;background:#fff;padding:0 24px 22px;font-size:15px;color:var(--c-text-2);line-height:1.85;
}

/* ============ 咨询 CTA / 表单 ============ */
.cta-panel{
  background:var(--c-bg-soft);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:52px 48px;position:relative;overflow:hidden;
}
.cta-panel::before{
  content:"";position:absolute;right:-40px;bottom:-70px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,194,201,.28),transparent 70%);
}
.cta-inner{display:grid;grid-template-columns:1fr 1fr;gap:48px;position:relative;z-index:1}
.cta-inner h2{font-size:28px;margin-bottom:14px;line-height:1.35}
.cta-inner .lead{color:var(--c-text-2);margin-bottom:24px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-notes{margin-top:24px;display:grid;gap:10px}
.cta-notes li{display:flex;gap:10px;font-size:14px;color:var(--c-text-2)}
.cta-notes li::before{content:"";flex:0 0 auto;width:8px;height:8px;margin-top:9px;border-radius:2px;background:var(--c-accent)}
.consult-form{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:8px}
.field--full{grid-column:1 / -1}
.field label{font-size:14px;font-weight:600;color:var(--c-text)}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;border-radius:var(--r-input);
  border:1px solid var(--c-line);background:#fff;color:var(--c-text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:110px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(26,95,191,.14);
}
.form-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:18px}
.form-tip{font-size:13px;color:var(--c-text-3)}
.form-tip.is-ok{color:var(--c-ok)}
.privacy-note{font-size:13px;color:var(--c-text-3);margin-top:12px}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-primary-deep);color:rgba(255,255,255,.8);margin-top:96px;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.site-footer .f-brand{font-size:19px;font-weight:700;color:#fff;margin-bottom:12px;display:block}
.site-footer p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.72)}
.f-links{display:grid;gap:8px}
.f-links a{font-size:14px;color:rgba(255,255,255,.8);line-height:2}
.f-links a:hover{color:#fff;text-decoration:underline}
.f-contact{display:grid;gap:10px;font-size:14px;color:rgba(255,255,255,.8)}
.f-contact span{display:block}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.16);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom .f-links-inline{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom a{color:rgba(255,255,255,.7)}
.footer-bottom a:hover{color:#fff}

/* ============ 响应式 ============ */
@media screen and (max-width:1279px){
  .hero-copy h1{font-size:36px}
}
@media screen and (max-width:1023px){
  .wrap{padding:0 32px}
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .section{padding:72px 0}
  .hero{padding:40px 0 64px}
  .hero-copy h1{font-size:32px}
  .hero-visual{margin-top:36px}
  .result-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .quote-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .sol-row{grid-template-columns:1fr;gap:32px}
  .sol-row--rev .sol-media{order:0}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .cta-panel{padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .pain-card:nth-child(2n){transform:none}
  .pain-card:nth-child(2n):hover{transform:translateY(-4px)}
}
@media screen and (max-width:767px){
  .result-panel{padding:36px 26px}
  .hero-metrics{gap:8px}
  .metric-chip{padding:8px 14px}
  .footer-grid{grid-template-columns:1fr}
}
@media screen and (max-width:575px){
  body{font-size:15px}
  .wrap{padding:0 20px}
  .site-header{padding:0 12px;top:12px}
  .nav-pill{padding:8px 14px;min-height:60px}
  .nav-brand .brand-name{font-size:15px}
  .nav-brand .brand-sub{display:none}
  .nav-pill .btn-sm{padding:0 16px;font-size:14px}
  .mobile-panel{top:84px;left:12px;right:12px}
  .section{padding:56px 0}
  .hero-copy h1{font-size:27px}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .section-head h2{font-size:23px}
  .pain-grid{grid-template-columns:1fr}
  .pain-card{padding:22px}
  .news-grid{grid-template-columns:1fr}
  .result-grid{grid-template-columns:1fr}
  .result-item .val{font-size:28px}
  .cta-panel{padding:30px 20px}
  .consult-form{padding:20px}
  .form-grid{grid-template-columns:1fr}
  .quote-card{padding:22px}
  .accordion .accordion-title{font-size:15.5px;padding:16px 48px 16px 18px}
  .accordion .accordion-content{padding:0 18px 18px}
  .trust-bar{padding:16px;gap:10px 18px}
}

/* roulang page: category1 */
:root{
  --c-primary:#1A5FBF;
  --c-primary-deep:#0E3F86;
  --c-accent:#12C2C9;
  --c-cta:#FF7A2F;
  --c-bg:#F3F7FC;
  --c-bg-soft:#E9F0FA;
  --c-surface:#FFFFFF;
  --c-text:#101E33;
  --c-text-2:#4E6178;
  --c-text-3:#8698AE;
  --c-line:#DFE8F4;
  --ok:#16A34A;
  --radius-card:16px;
  --radius-panel:24px;
  --radius-pill:999px;
  --shadow-1:0 8px 24px rgba(20,60,120,.08);
  --shadow-2:0 16px 40px rgba(20,60,120,.14);
  --sec:96px;
}

/* ---------- reset / base ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,background-color .2s ease;}
a:hover{color:var(--c-primary-deep);}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:15px;color:var(--c-text);}
h1,h2,h3,h4{margin:0;color:var(--c-text);letter-spacing:0;}
p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}

/* ---------- container ---------- */
.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 40px;
}
@media (min-width:1440px){
  .wrap{max-width:1280px;}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:600;
  border:1.5px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--c-cta);
  color:#fff;
  box-shadow:0 10px 22px rgba(255,122,47,.28);
}
.btn-primary:hover{
  background:#f06b1e;
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 14px 28px rgba(255,122,47,.34);
}
.btn-primary:active{transform:translateY(0);}
.btn-outline{
  background:var(--c-surface);
  border-color:var(--c-primary);
  color:var(--c-primary);
}
.btn-outline:hover{
  background:rgba(26,95,191,.08);
  color:var(--c-primary-deep);
  border-color:var(--c-primary-deep);
}
.btn-soft{
  background:var(--c-surface);
  color:var(--c-primary);
  border-color:var(--c-line);
}
.btn-soft:hover{background:var(--c-bg-soft);color:var(--c-primary-deep);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 12px;
  border-radius:var(--radius-pill);
  font-size:12px;
  font-weight:600;
  background:rgba(26,95,191,.10);
  color:var(--c-primary);
  line-height:1;
}
.badge-accent{
  background:rgba(18,194,201,.14);
  color:#0b8d93;
}
.badge-on-image{
  position:absolute;
  top:14px;
  left:14px;
  background:rgba(255,255,255,.94);
  color:var(--c-primary);
  box-shadow:0 4px 12px rgba(16,30,51,.12);
}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;
  top:16px;
  z-index:100;
  padding:0 24px;
}
.nav-pill{
  max-width:1120px;
  margin:0 auto;
  min-height:64px;
  display:flex;
  align-items:center;
  gap:18px;
  padding:8px 20px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--c-line);
  box-shadow:var(--shadow-1);
  position:relative;
}
.nav-brand{
  display:flex;
  flex-direction:column;
  line-height:1.2;
  flex:0 0 auto;
}
.brand-name{
  font-size:16px;
  font-weight:700;
  color:var(--c-text);
  letter-spacing:.2px;
}
.brand-sub{
  font-size:11px;
  color:var(--c-text-3);
  margin-top:2px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin:0 auto;
}
.nav-links a{
  position:relative;
  font-size:14.5px;
  font-weight:500;
  color:var(--c-text-2);
  padding:9px 13px;
  border-radius:var(--radius-pill);
  white-space:nowrap;
  transition:color .2s ease,background-color .2s ease;
}
.nav-links a:hover{color:var(--c-primary);background:rgba(26,95,191,.07);}
.nav-links a.is-active{color:var(--c-primary);font-weight:600;}
.nav-links a.is-active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:2px;
  transform:translateX(-50%);
  width:20px;
  height:3px;
  border-radius:3px;
  background:var(--c-primary);
}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:14px;
  border:1px solid var(--c-line);
  background:var(--c-surface);
  position:relative;
  padding:0;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;
  left:50%;
  transform:translateX(-50%);
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--c-text-2);
  content:"";
}
.nav-toggle span{top:21px;}
.nav-toggle span::before{top:-6px;left:0;transform:none;}
.nav-toggle span::after{top:6px;left:0;transform:none;}

/* ---------- sections ---------- */
.section{padding:var(--sec) 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:28px;line-height:1.35;font-weight:600;margin-bottom:14px;}
.section-head p{color:var(--c-text-2);font-size:16px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:28px;
  padding:0 14px;
  border-radius:var(--radius-pill);
  background:rgba(18,194,201,.14);
  color:#0b8d93;
  font-size:12.5px;
  font-weight:600;
  margin-bottom:16px;
}

/* ---------- page banner ---------- */
.page-top{padding-top:28px;}
.page-banner{
  position:relative;
  border-radius:var(--radius-panel);
  overflow:hidden;
  background:var(--c-bg-soft);
  border:1px solid var(--c-line);
}
.banner-media{position:absolute;inset:0;z-index:0;}
.banner-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center right;
  opacity:.42;
}
.banner-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,#F3F7FC 0%,rgba(243,247,252,.94) 46%,rgba(243,247,252,.36) 78%,rgba(243,247,252,.10) 100%);
}
.banner-content{
  position:relative;
  z-index:1;
  padding:52px 56px 50px;
  max-width:800px;
}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13.5px;
  color:var(--c-text-3);
  margin-bottom:18px;
}
.breadcrumb a{color:var(--c-text-3);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:#c2d1e4;}
.breadcrumb .current{color:var(--c-primary);font-weight:600;}
.page-banner h1{
  font-size:38px;
  line-height:1.28;
  font-weight:700;
  margin-bottom:16px;
}
.banner-lead{
  font-size:16.5px;
  color:var(--c-text-2);
  max-width:640px;
  margin-bottom:28px;
}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- quick checklist ---------- */
.side-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:28px 26px;
  position:sticky;
  top:104px;
}
.side-card h3{font-size:19px;font-weight:600;margin-bottom:8px;}
.side-card .side-desc{font-size:14.5px;color:var(--c-text-2);margin-bottom:20px;}
.check-list{display:flex;flex-direction:column;gap:14px;margin-bottom:24px;}
.check-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:14.5px;
  color:var(--c-text-2);
  line-height:1.7;
}
.check-list li i{
  flex:0 0 auto;
  width:22px;
  height:22px;
  border-radius:7px;
  background:rgba(18,194,201,.16);
  color:#0b8d93;
  font-size:11px;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-top:4px;
}
.side-stat{
  display:flex;
  align-items:baseline;
  gap:8px;
  padding-top:18px;
  border-top:1px dashed var(--c-line);
}
.side-stat strong{font-size:26px;font-weight:700;color:var(--c-primary-deep);line-height:1;}
.side-stat span{font-size:13px;color:var(--c-text-3);}

/* ---------- step timeline ---------- */
.step-list{position:relative;}
.step-item{
  position:relative;
  display:flex;
  gap:20px;
  padding-bottom:26px;
}
.step-item:last-child{padding-bottom:0;}
.step-item::before{
  content:"";
  position:absolute;
  left:23px;
  top:56px;
  bottom:6px;
  width:2px;
  background:linear-gradient(180deg,var(--c-line),rgba(223,232,244,0));
}
.step-item:last-child::before{display:none;}
.step-num{
  flex:0 0 48px;
  width:48px;
  height:48px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  font-weight:700;
  color:var(--c-primary-deep);
  background:rgba(18,194,201,.14);
  border:1px solid rgba(18,194,201,.36);
  position:relative;
  z-index:1;
}
.step-body{
  flex:1 1 auto;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:22px 26px 24px;
  transition:box-shadow .25s ease,transform .25s ease;
}
.step-body:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.step-body h3{font-size:18px;font-weight:600;margin-bottom:8px;}
.step-body p{font-size:15px;color:var(--c-text-2);margin:0;}
.step-meta{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:14px;
  font-size:13px;
  color:var(--c-text-3);
}
.step-meta i{color:var(--c-accent);font-size:12px;}

/* ---------- notice bar ---------- */
.notice{
  margin-top:34px;
  background:rgba(18,194,201,.08);
  border-left:4px solid var(--c-primary);
  border-radius:0 var(--radius-card) var(--radius-card) 0;
  padding:26px 30px;
}
.notice h3{
  font-size:18px;
  font-weight:600;
  margin-bottom:14px;
  display:flex;
  align-items:center;
  gap:10px;
}
.notice h3 i{color:var(--c-primary);font-size:16px;}
.notice ul{display:flex;flex-direction:column;gap:12px;}
.notice li{
  position:relative;
  padding-left:20px;
  font-size:15px;
  color:var(--c-text-2);
  line-height:1.75;
}
.notice li::before{
  content:"";
  position:absolute;
  left:0;
  top:11px;
  width:8px;
  height:8px;
  border-radius:3px;
  background:var(--c-accent);
}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:10px;}
.faq-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:background-color .25s ease,box-shadow .25s ease;
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 26px;
  background:none;
  border:0;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--c-text);
  line-height:1.5;
}
.faq-q:hover{color:var(--c-primary);}
.faq-icon{
  flex:0 0 auto;
  width:28px;
  height:28px;
  border-radius:50%;
  background:rgba(26,95,191,.10);
  color:var(--c-primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
  transition:transform .25s ease,background-color .25s ease,color .25s ease;
}
.faq-item.is-open .faq-icon{background:var(--c-primary);color:#fff;transform:rotate(45deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s ease;
}
.faq-a p{
  padding:0 26px 24px;
  margin:0;
  font-size:15px;
  color:var(--c-text-2);
  line-height:1.85;
}
.faq-item.is-open{background:var(--c-bg);box-shadow:inset 3px 0 0 var(--c-primary),var(--shadow-1);}
.faq-item.is-open .faq-a{max-height:320px;}

/* ---------- recommend cards ---------- */
.rec-card{
  display:block;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  height:100%;
  transition:transform .28s ease,box-shadow .28s ease;
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);color:inherit;}
.rec-media{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:linear-gradient(135deg,#1A5FBF,#12C2C9);
}
.rec-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .35s ease;
}
.rec-card:hover .rec-media img{transform:scale(1.04);}
.rec-body{padding:20px 22px 24px;}
.rec-body h3{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:10px;}
.rec-body p{font-size:14.5px;color:var(--c-text-2);margin:0 0 16px;}
.rec-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--c-primary);
}
.rec-more i{transition:transform .25s ease;font-size:12px;}
.rec-card:hover .rec-more i{transform:translateX(4px);}

/* ---------- cta strip ---------- */
.cta-strip{
  background:var(--c-bg-soft);
  border:1px solid var(--c-line);
  border-radius:var(--radius-panel);
  padding:44px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
}
.cta-strip h2{font-size:24px;font-weight:600;margin-bottom:8px;}
.cta-strip p{font-size:15px;color:var(--c-text-2);margin:0;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--c-primary-deep);
  color:rgba(255,255,255,.8);
  padding:64px 0 26px;
  margin-top:96px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:36px;
}
.f-brand{
  display:block;
  font-size:18px;
  font-weight:700;
  color:#fff;
  margin-bottom:14px;
}
.site-footer p{
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.76);
  margin:0;
  max-width:280px;
}
.site-footer h4{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.f-links{display:flex;flex-direction:column;gap:10px;}
.f-links a{
  font-size:14px;
  color:rgba(255,255,255,.78);
  line-height:2;
}
.f-links a:hover{color:#fff;}
.f-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:rgba(255,255,255,.78);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.16);
  font-size:13px;
  color:rgba(255,255,255,.68);
}
.f-links-inline{display:flex;gap:18px;flex-wrap:wrap;}
.f-links-inline a{color:rgba(255,255,255,.68);font-size:13px;}
.f-links-inline a:hover{color:#fff;}

/* ---------- foundation overrides ---------- */
.grid-x.grid-margin-x{margin-left:-14px;margin-right:-14px;}
.grid-x.grid-margin-x>.cell{padding-left:14px;padding-right:14px;}
.grid-x.grid-margin-y{margin-top:-14px;margin-bottom:-14px;}
.grid-x.grid-margin-y>.cell{padding-top:14px;padding-bottom:14px;}
body,.button,button{font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .page-banner h1{font-size:34px;}
  .banner-content{padding:46px 44px 44px;}
}
@media (max-width:1023px){
  :root{--sec:72px;}
  .wrap{padding:0 32px;}
  .site-header{padding:0 16px;}
  .nav-pill{min-height:60px;padding:8px 14px;gap:12px;}
  .nav-links{
    position:absolute;
    top:74px;
    left:0;
    right:0;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    margin:0;
    padding:8px;
    background:#fff;
    border:1px solid var(--c-line);
    border-radius:20px;
    box-shadow:var(--shadow-2);
    display:none;
  }
  .nav-links.is-open{display:flex;}
  .nav-links a{
    padding:14px 16px;
    border-radius:12px;
    font-size:15px;
    border-bottom:1px solid var(--c-bg-soft);
  }
  .nav-links a:last-child{border-bottom:0;}
  .nav-links a.is-active::after{display:none;}
  .nav-toggle{display:block;}
  .nav-right{margin-left:auto;}
  .side-card{position:static;margin-bottom:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .cta-strip{padding:36px 32px;}
}
@media (max-width:767px){
  :root{--sec:56px;}
  .wrap{padding:0 20px;}
  .page-banner h1{font-size:27px;}
  .banner-content{padding:34px 24px 32px;}
  .banner-lead{font-size:15.5px;}
  .banner-media::after{background:linear-gradient(180deg,rgba(243,247,252,.94) 0%,rgba(243,247,252,.86) 60%,rgba(243,247,252,.72) 100%);}
  .section-head h2{font-size:23px;}
  .step-item{gap:14px;}
  .step-num{flex:0 0 42px;width:42px;height:42px;font-size:16px;}
  .step-item::before{left:20px;top:50px;}
  .step-body{padding:18px 20px 20px;}
  .notice{padding:22px 20px;}
  .faq-q{font-size:16px;padding:18px 18px;}
  .faq-a p{padding:0 18px 20px;}
  .faq-item.is-open .faq-a{max-height:420px;}
  .cta-strip{padding:30px 24px;flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .btn{height:46px;padding:0 22px;}
}
@media (max-width:575px){
  .brand-sub{display:none;}
  .nav-right .btn-sm{display:none;}
  .page-banner h1{font-size:24px;}
  .banner-actions .btn{width:100%;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
}

/* roulang page: article */
:root{
  --c-primary:#1A5FBF;
  --c-primary-deep:#0E3F86;
  --c-accent:#12C2C9;
  --c-cta:#FF7A2F;
  --c-bg:#F3F7FC;
  --c-bg-soft:#E9F0FA;
  --c-surface:#FFFFFF;
  --c-text:#101E33;
  --c-text-2:#4E6178;
  --c-text-3:#8698AE;
  --c-line:#DFE8F4;
  --c-ok:#16A34A;
  --shadow-1:0 8px 24px rgba(20,60,120,.08);
  --shadow-2:0 16px 40px rgba(20,60,120,.14);
  --r-card:16px;
  --r-panel:24px;
  --r-pill:999px;
  --r-input:12px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary-deep)}
button,input,textarea,select{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4{margin:0;letter-spacing:0}
p{margin:0}
ul,ol{margin:0}
.wrap{max-width:1200px;margin:0 auto;padding:0 40px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 28px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background-color .25s ease,color .25s ease,border-color .25s ease;
}
.btn-sm{height:42px;padding:0 22px;font-size:14px}
.btn-primary{background:var(--c-cta);color:#fff;box-shadow:0 8px 20px rgba(255,122,47,.28)}
.btn-primary:hover{background:#EE6A1C;color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,122,47,.34)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:rgba(26,95,191,.55)}
.btn-ghost:hover{background:rgba(26,95,191,.08);color:var(--c-primary-deep);border-color:var(--c-primary)}
.btn-blue{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px rgba(26,95,191,.24)}
.btn-blue:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px)}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;
  background:rgba(26,95,191,.10);color:var(--c-primary);
}
.badge-accent{background:rgba(18,194,201,.14);color:#0B8E93}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:16px;z-index:80;padding:0 20px}
.nav-pill{
  position:relative;
  max-width:1120px;margin:0 auto;height:64px;
  display:flex;align-items:center;gap:22px;
  padding:0 20px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border:1px solid var(--c-line);box-shadow:var(--shadow-1);
}
.nav-brand{display:flex;flex-direction:column;justify-content:center;line-height:1.2;margin-right:auto}
.brand-name{font-size:16px;font-weight:700;color:var(--c-text);letter-spacing:.2px}
.brand-sub{font-size:11px;color:var(--c-text-3)}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--c-text-2);
  padding:10px 12px;border-radius:var(--r-pill);transition:background-color .22s ease,color .22s ease;
}
.nav-links a:hover{color:var(--c-primary);background:var(--c-bg-soft)}
.nav-links a.is-active{color:var(--c-primary);font-weight:600}
.nav-links a.is-active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:18px;height:3px;border-radius:2px;background:var(--c-primary);
}
.nav-right{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--r-pill);
  background:#fff;position:relative;cursor:pointer;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";position:absolute;left:50%;width:18px;height:2px;border-radius:2px;background:var(--c-text-2);
  transform:translateX(-50%);transition:.25s ease;
}
.nav-toggle span{top:50%;margin-top:-1px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-pill.nav-open .nav-toggle span{background:transparent}
.nav-pill.nav-open .nav-toggle span::before{top:0;transform:translateX(-50%) rotate(45deg)}
.nav-pill.nav-open .nav-toggle span::after{top:0;transform:translateX(-50%) rotate(-45deg)}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:32px 0 18px;font-size:14px;color:var(--c-text-3)}
.breadcrumb a{color:var(--c-text-3)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#C3D2E6}
.breadcrumb .cur{color:var(--c-primary);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章布局 ---------- */
.page-main{padding-bottom:96px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:36px;align-items:start}
.article-main{min-width:0}
.article-head{margin-bottom:26px}
.article-head h1{
  font-size:38px;line-height:1.28;font-weight:700;color:var(--c-text);
  margin:16px 0 18px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--c-text-3)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C3D2E6}
.article-cover{margin:0 0 12px;border-radius:20px;overflow:hidden;box-shadow:var(--shadow-1);background:var(--c-bg-soft)}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-cover figcaption{font-size:13px;color:var(--c-text-3);padding:12px 2px 0}

.article-body{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-panel);
  padding:44px 44px 40px;box-shadow:var(--shadow-1);
  font-size:17px;line-height:1.9;color:var(--c-text);
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 20px}
.article-body h2{
  position:relative;font-size:26px;line-height:1.35;font-weight:600;
  margin:42px 0 16px;padding-left:16px;color:var(--c-text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:7px;width:6px;height:22px;border-radius:3px;background:var(--c-primary);
}
.article-body h3{font-size:20px;line-height:1.5;font-weight:600;margin:32px 0 12px;color:var(--c-text)}
.article-body h4{font-size:18px;font-weight:600;margin:26px 0 10px}
.article-body a{color:var(--c-primary);border-bottom:1px solid rgba(26,95,191,.35)}
.article-body a:hover{color:var(--c-primary-deep);border-bottom-color:var(--c-primary-deep)}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
.article-body li{margin:8px 0}
.article-body ul li::marker{color:var(--c-primary)}
.article-body ol li::marker{color:var(--c-primary);font-weight:700}
.article-body blockquote{
  margin:26px 0;padding:20px 24px;border-left:4px solid var(--c-primary);
  background:var(--c-bg);border-radius:0 12px 12px 0;color:var(--c-text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-card);margin:8px 0 12px;height:auto}
.article-body figure{margin:24px 0}
.article-body figure figcaption{font-size:13px;color:var(--c-text-3);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px;border-radius:12px;overflow:hidden}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:12px 14px;text-align:left}
.article-body th{background:var(--c-bg-soft);font-weight:600;color:var(--c-primary-deep)}
.article-body tr:nth-child(even) td{background:#FAFCFF}
.article-body hr{border:none;border-top:1px solid var(--c-line);margin:32px 0}
.article-body code{background:var(--c-bg-soft);border-radius:6px;padding:2px 6px;font-size:15px;color:var(--c-primary-deep)}

.tip-card{
  margin:28px 0;padding:20px 22px;border-radius:var(--r-card);
  background:rgba(18,194,201,.10);border-left:4px solid var(--c-primary);
  font-size:15px;line-height:1.85;color:var(--c-text-2);
}
.tip-card strong{color:var(--c-text)}

.article-empty{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-panel);
  padding:56px 40px;text-align:center;box-shadow:var(--shadow-1);
}
.article-empty h2{font-size:24px;font-weight:600;margin-bottom:12px}
.article-empty p{color:var(--c-text-2);margin-bottom:24px}

/* ---------- 侧栏 ---------- */
.article-side{min-width:0}
.sidebar-inner{display:flex;flex-direction:column;gap:24px}
@media (min-width:1024px){
  .sidebar-inner{position:sticky;top:104px}
}
.sidebar-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow-1);
}
.sidebar-card h3{font-size:17px;font-weight:600;margin-bottom:14px;color:var(--c-text)}
.sidebar-card h3 span{display:inline-block;width:6px;height:16px;border-radius:3px;background:var(--c-accent);margin-right:8px;vertical-align:-2px}
.sidebar-list{list-style:none;padding:0;margin:0}
.sidebar-list li{border-top:1px solid var(--c-bg-soft)}
.sidebar-list li:first-child{border-top:none}
.sidebar-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 2px;font-size:14px;color:var(--c-text-2);
}
.sidebar-list a:hover{color:var(--c-primary)}
.sidebar-list a .arrow{transition:transform .25s ease;color:var(--c-primary)}
.sidebar-list a:hover .arrow{transform:translateX(4px)}
.sidebar-cta{
  background:linear-gradient(135deg,#1A5FBF,#0E3F86);color:#fff;border:none;
  border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--shadow-2);
}
.sidebar-cta h3{color:#fff;font-size:18px;font-weight:600;margin-bottom:10px}
.sidebar-cta p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.82);margin-bottom:18px}
.sidebar-cta .btn{width:100%;background:#fff;color:var(--c-primary-deep)}
.sidebar-cta .btn:hover{background:var(--c-bg-soft);color:var(--c-primary-deep)}
.sidebar-facts{display:flex;flex-direction:column;gap:12px;font-size:14px;color:var(--c-text-2)}
.sidebar-facts .fact{display:flex;align-items:center;gap:10px}
.sidebar-facts .fact i{width:10px;height:10px;border-radius:50%;background:var(--c-accent);flex:none}

/* ---------- 文末区 ---------- */
.post-footer{margin-top:36px;display:flex;flex-direction:column;gap:26px}
.tags{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:6px;
  background:rgba(18,194,201,.14);color:#0B8E93;font-size:12px;font-weight:600;
}
.prevnext{display:grid;grid-template-columns:1fr;gap:16px}
.pn-card{
  display:flex;flex-direction:column;gap:8px;padding:20px 22px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.pn-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#C7DAF2}
.pn-label{font-size:12px;color:var(--c-text-3);letter-spacing:.5px}
.pn-title{font-size:16px;font-weight:600;color:var(--c-text)}
.pn-card.pn-next{text-align:right}
.pn-card.pn-next .pn-title{color:var(--c-primary)}
.back-link{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;
  color:var(--c-primary);width:fit-content;
}
.back-link:hover{gap:12px}

/* ---------- 相关推荐 ---------- */
.related-section{padding:88px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:28px}
.section-head h2{font-size:28px;font-weight:600;line-height:1.35}
.section-head p{font-size:14px;color:var(--c-text-2);margin-top:8px}
.related-grid{margin-bottom:-28px}
.news-card{
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);transition:transform .3s ease,box-shadow .3s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.news-thumb{position:relative;overflow:hidden;background:linear-gradient(135deg,#1A5FBF,#12C2C9)}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-thumb .news-badge{
  position:absolute;left:14px;top:14px;height:26px;padding:0 12px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;font-size:12px;font-weight:600;
  background:rgba(255,255,255,.92);color:var(--c-primary-deep);
}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.news-body h3{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:10px}
.news-body h3 a{color:var(--c-text)}
.news-body h3 a:hover{color:var(--c-primary)}
.news-body p{font-size:14px;line-height:1.8;color:var(--c-text-2);margin-bottom:18px}
.news-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;border-top:1px solid var(--c-bg-soft);font-size:13px;color:var(--c-text-3);
}
.news-foot .read{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600}
.news-card:hover .news-foot .read span{transform:translateX(4px)}
.news-foot .read span{display:inline-block;transition:transform .25s ease}

/* ---------- 底部 CTA ---------- */
.cta-section{padding:88px 0 0}
.cta-panel{
  background:var(--c-bg-soft);border:1px solid #D5E3F6;border-radius:var(--r-panel);
  padding:56px 48px;display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center;
}
.cta-panel h2{font-size:28px;font-weight:600;line-height:1.4;margin-bottom:12px}
.cta-panel p{font-size:15px;color:var(--c-text-2);line-height:1.85}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}
.cta-note{font-size:13px;color:var(--c-text-3);margin-top:14px}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:96px;background:var(--c-primary-deep);color:rgba(255,255,255,.8)}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;
  padding:64px 0 44px;
}
.f-brand{display:block;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,.72)}
.site-footer h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.f-links{display:flex;flex-direction:column;gap:6px}
.f-links a{font-size:14px;line-height:2;color:rgba(255,255,255,.78)}
.f-links a:hover{color:#fff}
.f-contact{display:flex;flex-direction:column;gap:8px;font-size:14px;color:rgba(255,255,255,.78)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.16);font-size:13px;color:rgba(255,255,255,.62);
}
.f-links-inline{display:flex;gap:18px;flex-wrap:wrap}
.f-links-inline a{color:rgba(255,255,255,.7);font-size:13px}
.f-links-inline a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .wrap{padding:0 32px}
  .article-head h1{font-size:34px}
}
@media (max-width:1023px){
  .wrap{padding:0 32px}
  .nav-toggle{display:block}
  .nav-links{
    display:none;position:absolute;left:0;right:0;top:calc(100% + 12px);
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border:1px solid var(--c-line);border-radius:20px;
    padding:10px 12px;box-shadow:var(--shadow-2);
  }
  .nav-pill.nav-open .nav-links{display:flex}
  .nav-links a{padding:14px 16px;min-height:48px;display:flex;align-items:center;border-bottom:1px solid var(--c-bg-soft)}
  .nav-links a:last-child{border-bottom:none}
  .nav-links a.is-active::after{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 36px}
  .cta-panel{grid-template-columns:1fr;padding:44px 32px}
  .cta-actions{justify-content:flex-start}
  .related-section,.cta-section{padding-top:72px}
}
@media (max-width:767px){
  .site-header{top:10px;padding:0 14px}
  .nav-pill{height:60px;padding:0 16px;gap:12px}
  .brand-name{font-size:15px}
  .brand-sub{display:none}
  .wrap{padding:0 20px}
  .article-head h1{font-size:27px;line-height:1.32}
  .article-body{padding:26px 20px 28px;font-size:16px;line-height:1.9;border-radius:var(--r-card)}
  .article-body h2{font-size:22px;margin-top:34px}
  .article-body h3{font-size:18px}
  .breadcrumb{padding:20px 0 14px}
  .breadcrumb .cur{max-width:180px}
  .prevnext{grid-template-columns:1fr}
  .pn-card.pn-next{text-align:left}
  .section-head h2{font-size:23px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-panel{padding:32px 22px}
  .cta-panel h2{font-size:22px}
  .page-main{padding-bottom:64px}
  .related-section,.cta-section{padding-top:56px}
  .site-footer{margin-top:64px}
}
@media (max-width:575px){
  .article-head h1{font-size:24px}
  .btn{width:100%;padding:0 20px}
  .nav-right .btn-sm{width:auto;padding:0 16px;height:40px}
  .cta-actions{flex-direction:column;align-items:stretch}
  .tag{height:26px}
}
@media (min-width:1024px){
  .prevnext{grid-template-columns:1fr 1fr}
}

/* roulang page: category2 */
:root{
  --c-primary:#1A5FBF;
  --c-primary-deep:#0E3F86;
  --c-accent:#12C2C9;
  --c-cta:#FF7A2F;
  --c-bg:#F3F7FC;
  --c-bg-soft:#E9F0FA;
  --c-surface:#FFFFFF;
  --c-text:#101E33;
  --c-text-2:#4E6178;
  --c-text-3:#8698AE;
  --c-line:#DFE8F4;
  --c-ok:#16A34A;
  --c-warn:#D97706;
  --c-err:#E5484D;
  --r-card:16px;
  --r-panel:24px;
  --r-input:12px;
  --sh-1:0 8px 24px rgba(20,60,120,.08);
  --sh-2:0 16px 40px rgba(20,60,120,.14);
  --sp-section:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,box-shadow .2s ease;}
a:hover{color:var(--c-primary-deep);}
h1,h2,h3,h4{margin:0;color:var(--c-text);letter-spacing:0;}
h1{font-size:40px;line-height:1.25;font-weight:700;}
h2{font-size:28px;line-height:1.35;font-weight:600;}
h3{font-size:20px;line-height:1.5;font-weight:600;}
p{margin:0 0 18px;color:var(--c-text-2);}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.wrap{max-width:1200px;margin:0 auto;padding:0 40px;}
.section{padding:var(--sp-section) 0;}
.section-tight{padding:64px 0;}
.sec-head{max-width:720px;margin-bottom:40px;}
.sec-head .eyebrow{
  display:inline-block;
  padding:4px 14px;
  border-radius:999px;
  background:rgba(18,194,201,.12);
  color:var(--c-primary-deep);
  font-size:12px;
  font-weight:600;
  letter-spacing:.04em;
  margin-bottom:14px;
}
.sec-head h2{margin-bottom:12px;}
.sec-head p{font-size:15px;color:var(--c-text-2);margin-bottom:0;}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{
  position:sticky;
  top:16px;
  z-index:60;
  padding:0 20px;
}
.nav-pill{
  position:relative;
  max-width:1120px;
  margin:0 auto;
  min-height:64px;
  display:flex;
  align-items:center;
  gap:22px;
  padding:8px 20px;
  border-radius:999px;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--c-line);
  box-shadow:0 8px 24px rgba(20,60,120,.08);
}
.nav-brand{display:flex;flex-direction:column;line-height:1.15;flex:0 0 auto;}
.brand-name{font-size:16px;font-weight:700;color:var(--c-text);}
.brand-sub{font-size:11px;color:var(--c-text-3);letter-spacing:.02em;}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-links a{
  font-size:13.5px;
  font-weight:500;
  color:var(--c-text-2);
  padding:8px 10px;
  border-radius:999px;
  position:relative;
  white-space:nowrap;
}
.nav-links a:hover{color:var(--c-primary);background:var(--c-bg-soft);}
.nav-links a.is-active{color:var(--c-primary);font-weight:600;}
.nav-links a.is-active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:2px;
  transform:translateX(-50%);
  width:20px;
  height:3px;
  border-radius:999px;
  background:var(--c-primary);
}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:999px;
  border:1px solid var(--c-line);
  background:#fff;
  cursor:pointer;
  position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;
  left:50%;
  width:16px;
  height:2px;
  border-radius:2px;
  background:var(--c-primary);
  transform:translateX(-50%);
  content:"";
}
.nav-toggle span{top:21px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:48px;
  padding:0 28px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  border:1.5px solid transparent;
  transition:transform .18s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn-sm{min-height:40px;padding:0 18px;font-size:13.5px;}
.btn-primary{background:var(--c-cta);color:#fff;box-shadow:0 8px 20px rgba(255,122,47,.28);}
.btn-primary:hover{background:#f06a1c;color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,122,47,.34);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:#fff;color:var(--c-primary);border-color:var(--c-primary);}
.btn-outline:hover{background:rgba(26,95,191,.08);color:var(--c-primary-deep);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;}
.btn-light{background:#fff;color:var(--c-primary-deep);border-color:#fff;}
.btn-light:hover{background:#F3F7FC;color:var(--c-primary-deep);}
.text-link{font-size:14px;font-weight:600;color:var(--c-primary);}
.text-link:hover{color:var(--c-primary-deep);text-decoration:underline;}

/* ---------- 顶部横幅 ---------- */
.page-hero{padding-top:24px;}
.hero-panel{
  position:relative;
  border-radius:var(--r-panel);
  overflow:hidden;
  min-height:380px;
  background:var(--c-bg-soft);
  box-shadow:var(--sh-1);
  display:flex;
  align-items:center;
}
.hero-bg{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  opacity:.55;
}
.hero-panel::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(243,247,252,.97) 0%,rgba(243,247,252,.92) 42%,rgba(243,247,252,.45) 100%);
}
.hero-inner{position:relative;z-index:2;padding:56px 56px 52px;max-width:760px;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--c-text-3);
  margin-bottom:18px;
}
.breadcrumb a{color:var(--c-text-3);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb span{color:var(--c-text-3);}
.breadcrumb .current{color:var(--c-primary);font-weight:600;}
.hero-inner h1{margin-bottom:18px;}
.hero-lead{font-size:16px;line-height:1.85;color:var(--c-text-2);max-width:620px;}
.hero-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 特性矩阵 ---------- */
.matrix{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:28px;
}
.matrix-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:var(--sh-1);
  transition:box-shadow .25s ease,transform .25s ease;
}
.matrix-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}
.matrix-card:nth-child(even){margin-top:32px;}
.mc-icon{
  width:48px;height:48px;
  border-radius:14px;
  background:rgba(18,194,201,.12);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:18px;
}
.mc-icon svg{width:24px;height:24px;}
.matrix-card h3{font-size:18px;margin-bottom:10px;}
.matrix-card p{font-size:15px;line-height:1.8;color:var(--c-text-2);margin-bottom:0;}
.mc-tag{
  display:inline-block;
  margin-top:16px;
  padding:4px 12px;
  border-radius:6px;
  background:rgba(26,95,191,.08);
  color:var(--c-primary);
  font-size:12px;
  font-weight:600;
}

/* ---------- 深色对比条 ---------- */
.compare-panel{
  background:var(--c-primary-deep);
  border-radius:var(--r-panel);
  padding:48px 48px 44px;
  color:#fff;
  box-shadow:var(--sh-2);
}
.compare-panel h2{color:#fff;margin-bottom:10px;}
.compare-panel .cmp-lead{color:rgba(255,255,255,.78);font-size:15px;max-width:640px;margin-bottom:36px;}
.compare-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:32px;
}
.cmp-top{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:14px;}
.cmp-label{font-size:14px;color:rgba(255,255,255,.82);}
.cmp-num{font-size:22px;font-weight:700;color:var(--c-cta);letter-spacing:.01em;}
.bar{height:6px;border-radius:999px;background:rgba(255,255,255,.16);overflow:hidden;}
.bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--c-accent),#7BE3E8);}
.bar-88 i{width:88%;}
.bar-92 i{width:92%;}
.bar-80 i{width:80%;}
.cmp-note{margin-top:14px;font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.68);margin-bottom:0;}

/* ---------- FAQ ---------- */
.faq-list{background:transparent;border:0;margin:0;padding:0;}
.faq-list .accordion-item{
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  background:var(--c-surface);
  margin-bottom:10px;
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:box-shadow .2s ease;
}
.faq-list .accordion-item:hover{box-shadow:var(--sh-2);}
.faq-list .accordion-title{
  border:0;
  padding:20px 60px 20px 22px;
  font-size:17px;
  font-weight:600;
  color:var(--c-text);
  line-height:1.6;
  position:relative;
  background:transparent;
}
.faq-list .accordion-title:hover{background:var(--c-bg);}
.faq-list .accordion-title::before{
  content:"+";
  position:absolute;
  right:24px;
  top:50%;
  transform:translateY(-50%);
  font-size:20px;
  font-weight:400;
  color:var(--c-primary);
}
.faq-list .accordion-item.is-active .accordion-title{background:var(--c-bg);}
.faq-list .accordion-item.is-active .accordion-title::before{content:"−";}
.faq-list .accordion-content{
  border:0;
  background:var(--c-bg);
  padding:0 22px 22px 22px;
  font-size:15px;
  line-height:1.8;
  color:var(--c-text-2);
  border-left:3px solid var(--c-primary);
}
.faq-list .accordion-content p{margin-bottom:12px;font-size:15px;color:var(--c-text-2);}
.faq-list .accordion-content p:last-child{margin-bottom:0;}

/* ---------- 相关分类推荐 ---------- */
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:28px;
}
.rel-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  display:flex;
  flex-direction:column;
  transition:box-shadow .25s ease,transform .25s ease;
}
.rel-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}
.rel-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#1A5FBF,#12C2C9);}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.04);}
.rel-badge{
  position:absolute;top:14px;left:14px;
  padding:4px 12px;
  border-radius:999px;
  background:rgba(26,95,191,.9);
  color:#fff;
  font-size:12px;
  font-weight:600;
}
.rel-body{padding:22px;display:flex;flex-direction:column;flex:1 1 auto;}
.rel-body h3{font-size:17px;margin-bottom:10px;line-height:1.5;}
.rel-body p{font-size:14px;line-height:1.75;color:var(--c-text-2);margin-bottom:16px;}
.rel-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-text-3);}
.rel-foot .arrow{color:var(--c-primary);font-weight:600;transition:transform .2s ease;display:inline-block;}
.rel-card:hover .rel-foot .arrow{transform:translateX(4px);}

/* ---------- 底部 CTA ---------- */
.cta-panel{
  background:var(--c-bg-soft);
  border:1px solid var(--c-line);
  border-radius:var(--r-panel);
  padding:44px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  box-shadow:var(--sh-1);
}
.cta-panel h2{font-size:26px;margin-bottom:10px;}
.cta-panel p{max-width:600px;margin-bottom:0;font-size:15px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-primary-deep);
  color:rgba(255,255,255,.8);
  padding:72px 0 32px;
  margin-top:96px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
}
.f-brand{
  display:block;
  font-size:17px;
  font-weight:700;
  color:#fff;
  margin-bottom:14px;
}
.site-footer p{color:rgba(255,255,255,.72);font-size:14px;line-height:1.8;margin-bottom:0;max-width:320px;}
.site-footer h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.f-links{display:flex;flex-direction:column;gap:10px;}
.f-links a{color:rgba(255,255,255,.78);font-size:14px;line-height:1.5;}
.f-links a:hover{color:#fff;text-decoration:underline;}
.f-contact{display:flex;flex-direction:column;gap:12px;font-size:14px;color:rgba(255,255,255,.78);}
.footer-bottom{
  margin-top:48px;
  padding-top:24px;
  border-top:1px solid rgba(255,255,255,.16);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:13px;
  color:rgba(255,255,255,.62);
}
.f-links-inline{display:flex;flex-wrap:wrap;gap:18px;}
.f-links-inline a{color:rgba(255,255,255,.7);font-size:13px;}
.f-links-inline a:hover{color:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .wrap{padding:0 32px;}
  h1{font-size:34px;}
  .nav-links a{font-size:13px;padding:8px 8px;}
}
@media (max-width:1023px){
  :root{--sp-section:72px;}
  .nav-links{
    display:none;
    position:absolute;
    top:calc(100% + 12px);
    left:0;
    right:0;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:10px;
    background:#fff;
    border:1px solid var(--c-line);
    border-radius:20px;
    box-shadow:var(--sh-2);
  }
  .nav-links.is-open{display:flex;}
  .nav-links a{
    padding:14px 16px;
    font-size:15px;
    border-radius:14px;
    min-height:48px;
    display:flex;
    align-items:center;
    border-bottom:1px solid var(--c-bg-soft);
  }
  .nav-links a:last-child{border-bottom:0;}
  .nav-links a.is-active::after{display:none;}
  .nav-links a.is-active{background:var(--c-bg);}
  .nav-toggle{display:block;}
  .nav-right .btn{display:none;}
  .matrix{grid-template-columns:1fr;gap:20px;}
  .matrix-card:nth-child(even){margin-top:0;}
  .compare-grid{grid-template-columns:1fr;gap:28px;}
  .related-grid{grid-template-columns:1fr;gap:22px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-panel{flex-direction:column;align-items:flex-start;padding:36px;}
  .hero-inner{padding:44px 36px;}
}
@media (max-width:767px){
  :root{--sp-section:56px;}
  .wrap{padding:0 20px;}
  h1{font-size:28px;}
  h2{font-size:23px;}
  .hero-panel{min-height:0;}
  .hero-inner{padding:34px 22px;}
  .hero-lead{font-size:15px;}
  .compare-panel{padding:32px 22px;}
  .section-tight{padding:48px 0;}
  .site-footer{margin-top:64px;padding:56px 0 28px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-panel{padding:28px 20px;}
  .matrix-card{padding:22px;}
}
@media (max-width:575px){
  h1{font-size:26px;}
  .brand-name{font-size:15px;}
  .brand-sub{font-size:10px;}
  .nav-pill{padding:8px 14px;gap:12px;}
  .hero-actions .btn,.cta-actions .btn{width:100%;}
  .cmp-num{font-size:20px;}
}

/* roulang page: category3 */
:root{
  --c-primary:#1A5FBF;
  --c-primary-deep:#0E3F86;
  --c-accent:#12C2C9;
  --c-cta:#FF7A2F;
  --c-bg:#F3F7FC;
  --c-bg-soft:#E9F0FA;
  --c-surface:#FFFFFF;
  --c-text:#101E33;
  --c-text-2:#4E6178;
  --c-text-3:#8698AE;
  --c-line:#DFE8F4;
  --c-ok:#16A34A;
  --r-card:16px;
  --r-lg:24px;
  --r-pill:999px;
  --sh-1:0 8px 24px rgba(20,60,120,.08);
  --sh-2:0 16px 40px rgba(20,60,120,.14);
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,background .2s ease;}
a:hover{color:var(--c-primary-deep);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
.grid-container.site-container{max-width:1200px;padding-left:20px;padding-right:20px;margin-left:auto;margin-right:auto;}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){
  .grid-container.site-container{padding-left:32px;padding-right:32px;}
  .wrap{padding:0 32px;}
}
@media (min-width:1024px){
  .grid-container.site-container{padding-left:40px;padding-right:40px;}
  .wrap{padding:0 40px;}
}
@media (min-width:1440px){
  .grid-container.site-container{max-width:1280px;}
  .wrap{max-width:1280px;}
}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:16px;z-index:60;padding:0 16px;}
.nav-pill{
  position:relative;
  max-width:1120px;
  margin:0 auto;
  min-height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:0 20px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
}
.nav-brand{display:flex;flex-direction:column;line-height:1.2;padding:6px 0;}
.brand-name{font-size:16px;font-weight:700;color:var(--c-text);letter-spacing:.2px;white-space:nowrap;}
.brand-sub{font-size:11px;color:var(--c-text-3);letter-spacing:.4px;}
.nav-links{display:flex;align-items:center;gap:26px;}
.nav-links a{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--c-text-2);
  padding:8px 4px;
  border-radius:var(--r-pill);
  white-space:nowrap;
}
.nav-links a:hover{color:var(--c-primary);background:rgba(26,95,191,.07);}
.nav-links a.is-active{color:var(--c-primary);font-weight:600;}
.nav-links a.is-active::after{
  content:"";
  position:absolute;
  left:4px;right:4px;bottom:2px;
  height:3px;border-radius:3px;
  background:var(--c-primary);
}
.nav-right{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:var(--r-pill);
  border:1px solid var(--c-line);
  background:#fff;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-text);position:relative;}
.nav-toggle span::before,
.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--c-text);transition:transform .25s ease,top .25s ease;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-pill.nav-open .nav-toggle span{background:transparent;}
.nav-pill.nav-open .nav-toggle span::before{top:0;transform:rotate(45deg);}
.nav-pill.nav-open .nav-toggle span::after{top:0;transform:rotate(-45deg);}

@media (max-width:1023px){
  .brand-name{font-size:15px;}
  .brand-sub{display:none;}
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .nav-pill.nav-open .nav-links{
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    position:absolute;
    top:calc(100% + 10px);
    left:0;right:0;
    background:#fff;
    border:1px solid var(--c-line);
    border-radius:20px;
    padding:8px 10px;
    box-shadow:var(--sh-2);
  }
  .nav-pill.nav-open .nav-links a{
    min-height:48px;
    display:flex;
    align-items:center;
    padding:0 14px;
    border-bottom:1px solid var(--c-bg-soft);
    border-radius:10px;
    font-size:15px;
  }
  .nav-pill.nav-open .nav-links a:last-child{border-bottom:0;}
  .nav-pill.nav-open .nav-links a.is-active::after{display:none;}
  .nav-pill.nav-open .nav-links a.is-active{background:rgba(26,95,191,.08);}
}
@media (max-width:575px){
  .site-header{padding:0 10px;top:10px;}
  .nav-pill{padding:0 14px;gap:10px;}
  .brand-name{font-size:14px;}
  .nav-right .btn-sm{height:38px;padding:0 16px;font-size:13px;}
}

/* ---------- buttons / badges ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 28px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--c-cta);color:#fff;box-shadow:0 8px 20px rgba(255,122,47,.28);}
.btn-primary:hover{background:#F26A19;color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,122,47,.34);}
.btn-outline{background:#fff;border-color:var(--c-primary);color:var(--c-primary);}
.btn-outline:hover{background:rgba(26,95,191,.08);color:var(--c-primary-deep);}
.btn-on-dark{background:#fff;color:var(--c-primary-deep);border-color:#fff;}
.btn-on-dark:hover{background:#E9F0FA;color:var(--c-primary-deep);transform:translateY(-1px);box-shadow:0 12px 26px rgba(6,30,70,.25);}
.btn-sm{min-height:40px;padding:0 20px;font-size:14px;}
.badge{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;
  border-radius:var(--r-pill);
  font-size:12px;font-weight:600;
  background:rgba(26,95,191,.10);
  color:var(--c-primary);
  letter-spacing:.2px;
}
.badge-accent{background:rgba(18,194,201,.14);color:#0C8F95;}
.badge-dark{background:rgba(18,194,201,.18);color:#8AE9ED;}

/* ---------- banner ---------- */
.page-banner{position:relative;margin-top:20px;}
.banner-card{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  background:var(--c-primary-deep) url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  box-shadow:var(--sh-1);
}
.banner-card::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(8,30,64,.93) 0%,rgba(8,30,64,.82) 42%,rgba(8,30,64,.34) 78%,rgba(8,30,64,.18) 100%);
}
.banner-inner{position:relative;z-index:2;padding:56px 48px 52px;max-width:760px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:20px;}
.breadcrumb a{color:rgba(255,255,255,.78);}
.breadcrumb a:hover{color:#fff;text-decoration:underline;}
.breadcrumb .sep{color:rgba(255,255,255,.45);}
.breadcrumb .now{color:#fff;}
.banner-inner h1{
  font-size:38px;
  line-height:1.25;
  font-weight:700;
  color:#fff;
  letter-spacing:0;
  margin:14px 0 18px;
}
.banner-lead{color:rgba(255,255,255,.86);font-size:16px;line-height:1.85;margin-bottom:26px;max-width:620px;}
@media (max-width:1023px){
  .banner-inner{padding:44px 32px;}
  .banner-inner h1{font-size:32px;}
}
@media (max-width:575px){
  .banner-inner{padding:34px 22px 36px;}
  .banner-inner h1{font-size:26px;margin:12px 0 14px;}
  .banner-lead{font-size:15px;}
}

/* ---------- sections ---------- */
.section{padding:var(--sec) 0 0;}
.section-tight{padding:64px 0 0;}
.sec-head{max-width:760px;margin-bottom:36px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-title{
  position:relative;
  font-size:28px;
  line-height:1.35;
  font-weight:600;
  padding-left:16px;
  margin-bottom:14px;
}
.sec-title::before{
  content:"";
  position:absolute;left:0;top:6px;bottom:6px;
  width:6px;border-radius:3px;
  background:var(--c-primary);
}
.sec-head.center .sec-title{padding-left:0;}
.sec-head.center .sec-title::before{display:none;}
.sec-desc{color:var(--c-text-2);font-size:16px;line-height:1.85;}
@media (max-width:767px){
  :root{--sec:56px;}
  .section-tight{padding:48px 0 0;}
  .sec-title{font-size:23px;}
  .sec-head{margin-bottom:26px;}
}

/* ---------- figure ---------- */
.figure-card{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-card);
  border:1px solid var(--c-line);
  background:#fff;
  box-shadow:var(--sh-1);
}
.figure-card img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .35s ease;}
.figure-card:hover img{transform:scale(1.04);}
.figure-caption{padding:14px 18px;font-size:13px;color:var(--c-text-3);background:#fff;}

/* ---------- point list ---------- */
.point-list{display:grid;gap:12px;margin-top:24px;}
.point-item{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:18px 20px;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.point-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CFE0F6;}
.point-icon{
  flex:0 0 40px;height:40px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:rgba(18,194,201,.12);
  color:var(--c-primary);
  font-size:16px;
}
.point-body h3{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:4px;}
.point-body p{font-size:14.5px;color:var(--c-text-2);line-height:1.75;}

/* ---------- text block ---------- */
.text-block p{color:var(--c-text-2);font-size:16px;line-height:1.85;margin-bottom:16px;}
.text-block p:last-child{margin-bottom:0;}
.text-block strong{color:var(--c-text);font-weight:600;}

/* ---------- dark panel ---------- */
.dark-panel{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  padding:48px;
  color:#fff;
  background:linear-gradient(135deg,#0B2A5B 0%,#0E3F86 58%,#134A96 100%);
  box-shadow:var(--sh-2);
}
.dark-panel::before{
  content:"";
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.09) 1px,transparent 1px);
  background-size:20px 20px;
  opacity:.75;
  pointer-events:none;
}
.dark-panel>*{position:relative;z-index:2;}
.dark-panel h2{font-size:27px;line-height:1.4;font-weight:600;margin:16px 0 14px;}
.dp-lead{color:rgba(255,255,255,.82);font-size:16px;line-height:1.85;max-width:680px;}
.dp-list{margin:26px 0;display:grid;gap:12px;}
.dp-list li{
  position:relative;
  padding:14px 18px 14px 22px;
  border-radius:12px;
  background:rgba(255,255,255,.08);
  border-left:4px solid var(--c-accent);
  font-size:15.5px;
  color:#fff;
}
.dp-note{color:rgba(255,255,255,.7);font-size:14px;line-height:1.8;}
@media (max-width:767px){
  .dark-panel{padding:30px 22px;}
  .dark-panel h2{font-size:22px;}
}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  margin-bottom:8px;
  overflow:hidden;
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.faq-item:hover{border-color:#CFE0F6;}
.faq-item.is-open{background:var(--c-bg);box-shadow:var(--sh-1);border-color:#CFE0F6;}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  background:none;
  border:0;
  box-shadow:inset 0 0 0 0 var(--c-primary);
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--c-text);
  line-height:1.55;
  cursor:pointer;
  transition:box-shadow .25s ease;
}
.faq-item.is-open .faq-q{box-shadow:inset 3px 0 0 0 var(--c-primary);}
.faq-ico{
  position:relative;
  flex:0 0 22px;width:22px;height:22px;
  border-radius:50%;
  background:rgba(26,95,191,.10);
}
.faq-ico::before,
.faq-ico::after{
  content:"";position:absolute;background:var(--c-primary);border-radius:2px;
  transition:transform .3s ease,opacity .3s ease;
}
.faq-ico::before{width:11px;height:2px;left:5.5px;top:10px;}
.faq-ico::after{width:2px;height:11px;left:10px;top:5.5px;}
.faq-item.is-open .faq-ico::after{transform:rotate(90deg);opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  padding:0 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--c-text-2);
  transition:max-height .32s ease,padding .32s ease;
}
.faq-item.is-open .faq-a{padding-bottom:20px;}
.faq-a p{margin:0;}
@media (max-width:575px){
  .faq-q{font-size:15.5px;padding:16px 16px;}
  .faq-a{padding:0 16px;font-size:14.5px;}
  .faq-item.is-open .faq-a{padding-bottom:16px;}
}

/* ---------- recommend cards ---------- */
.rec-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.rec-media{position:relative;overflow:hidden;}
.rec-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease;}
.rec-card:hover .rec-media img{transform:scale(1.04);}
.rec-media .badge{position:absolute;top:12px;left:12px;background:rgba(255,255,255,.92);color:var(--c-primary);}
.rec-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rec-body h3{font-size:18px;font-weight:600;line-height:1.45;}
.rec-body p{font-size:14.5px;color:var(--c-text-2);line-height:1.75;flex:1;}
.rec-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);}
.rec-card:hover .rec-more i{transform:translateX(4px);}
.rec-more i{transition:transform .25s ease;}

/* ---------- cta band ---------- */
.cta-band{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:26px;
  flex-wrap:wrap;
  padding:36px 40px;
  border-radius:var(--r-lg);
  background:var(--c-bg-soft);
  border:1px solid #D6E4F7;
}
.cta-band h2{font-size:24px;font-weight:600;line-height:1.4;margin-bottom:8px;}
.cta-band p{color:var(--c-text-2);font-size:15px;line-height:1.8;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
@media (max-width:767px){
  .cta-band{padding:26px 22px;}
  .cta-band h2{font-size:20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
}

/* ---------- footer ---------- */
.site-footer{
  margin-top:96px;
  background:var(--c-primary-deep);
  color:rgba(255,255,255,.8);
  padding:64px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}
.f-brand{display:block;font-size:19px;font-weight:700;color:#fff;margin-bottom:12px;}
.footer-grid p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);max-width:320px;}
.footer-grid h4{font-size:15px;font-weight:600;color:#fff;margin:0 0 14px;}
.f-links{display:flex;flex-direction:column;gap:8px;}
.f-links a{font-size:14px;color:rgba(255,255,255,.78);line-height:2;}
.f-links a:hover{color:#fff;text-decoration:underline;}
.f-contact{display:flex;flex-direction:column;gap:8px;font-size:14px;color:rgba(255,255,255,.78);line-height:2;}
.footer-bottom{
  margin-top:48px;
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.66);
}
.f-links-inline{display:flex;gap:18px;flex-wrap:wrap;}
.f-links-inline a{font-size:13px;color:rgba(255,255,255,.7);}
.f-links-inline a:hover{color:#fff;text-decoration:underline;}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:575px){
  .site-footer{margin-top:64px;padding-top:44px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category4 */
:root{
  --c-primary:#1A5FBF;
  --c-primary-deep:#0E3F86;
  --c-accent:#12C2C9;
  --c-cta:#FF7A2F;
  --c-bg:#F3F7FC;
  --c-bg-soft:#E9F0FA;
  --c-surface:#FFFFFF;
  --c-text:#101E33;
  --c-text-2:#4E6178;
  --c-text-3:#8698AE;
  --c-line:#DFE8F4;
  --c-success:#16A34A;
  --c-warning:#D97706;
  --c-error:#E5484D;
  --r-card:16px;
  --r-panel:24px;
  --r-input:12px;
  --r-pill:999px;
  --sh-card:0 8px 24px rgba(20,60,120,.08);
  --sh-hover:0 16px 40px rgba(20,60,120,.14);
  --sp-section:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary-deep);text-decoration:underline}
p{margin:0 0 18px}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:600;color:var(--c-text)}
h1{font-size:38px;line-height:1.25;font-weight:700}
h2{font-size:28px}
h3{font-size:20px}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}

.wrap{max-width:1200px;margin:0 auto;padding:0 40px}
.section{margin-top:var(--sp-section)}
.section-tight{margin-top:64px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;height:26px;padding:0 14px;border-radius:var(--r-pill);background:rgba(18,194,201,.12);color:#0B7E84;font-size:12px;font-weight:600;letter-spacing:.02em}
.section-head{max-width:720px;margin-bottom:36px}
.section-head h2{margin-bottom:12px}
.section-head p{color:var(--c-text-2);margin:0}
.bar-title{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.bar-title::before{content:"";width:8px;height:24px;border-radius:4px;background:var(--c-primary);flex:0 0 auto}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{position:sticky;top:16px;z-index:60;padding:16px 20px 0}
.nav-pill{
  max-width:1120px;margin:0 auto;height:64px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:0 20px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--c-line);
  box-shadow:0 8px 24px rgba(20,60,120,.08);
}
.nav-brand{display:flex;flex-direction:column;line-height:1.2;text-decoration:none}
.nav-brand:hover{text-decoration:none}
.brand-name{font-size:17px;font-weight:700;color:var(--c-text);letter-spacing:.01em}
.brand-sub{font-size:11px;color:var(--c-text-3);letter-spacing:.06em}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--c-text-2);
  padding:8px 2px;text-decoration:none;white-space:nowrap;
}
.nav-links a:hover{color:var(--c-primary);background:rgba(26,95,191,.07);border-radius:var(--r-pill);text-decoration:none;padding:8px 12px}
.nav-links a.is-active{color:var(--c-primary);font-weight:600}
.nav-links a.is-active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:-2px;width:22px;height:3px;border-radius:3px;background:var(--c-primary);
}
.nav-right{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:#fff;
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-text);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-text)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;text-decoration:none;border:1.5px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--c-cta);color:#fff;box-shadow:0 8px 20px rgba(255,122,47,.28)}
.btn-primary:hover{background:#F0661A;color:#fff;box-shadow:0 14px 30px rgba(255,122,47,.32)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:rgba(26,95,191,.08);color:var(--c-primary-deep)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-block{width:100%}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:12px;font-weight:600}
.badge-blue{background:rgba(26,95,191,.12);color:#154C9B}
.badge-cyan{background:rgba(18,194,201,.14);color:#0B7E84}
.badge-soft{background:var(--c-bg-soft);color:var(--c-text-2)}

/* ---------- 顶部横幅 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--c-text-3);margin-bottom:20px}
.breadcrumb a{color:var(--c-text-3);text-decoration:none}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb span.sep{color:#C3D2E6}
.breadcrumb .current{color:var(--c-primary);font-weight:600}
.cat-banner{
  position:relative;margin-top:24px;border-radius:var(--r-panel);overflow:hidden;
  padding:56px 48px;
  border:1px solid var(--c-line);
  background-image:linear-gradient(100deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.90) 42%,rgba(243,247,252,.42) 100%),
                   url('/assets/images/backpic/back-2.png');
  background-size:cover,cover;
  background-position:center,center right;
  background-repeat:no-repeat,no-repeat;
}
.cat-banner-inner{max-width:720px;position:relative;z-index:1}
.cat-banner h1{margin:14px 0 18px}
.cat-banner .lead{font-size:17px;color:var(--c-text-2);margin:0 0 26px}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 通用卡片 ---------- */
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);transition:box-shadow .3s ease,transform .3s ease;
  height:100%;
}
.card:hover{box-shadow:var(--sh-hover);transform:translateY(-3px)}
.card-body{padding:24px 26px 26px}

/* ---------- 更新列表卡片 ---------- */
.overview-panel{
  display:flex;flex-wrap:wrap;align-items:center;gap:18px;
  background:var(--c-bg-soft);border-radius:var(--r-card);
  padding:22px 26px;border:1px solid var(--c-line);
}
.overview-panel .op-text{flex:1 1 320px;color:var(--c-text-2);margin:0;font-size:15px}
.op-metrics{display:flex;flex-wrap:wrap;gap:26px}
.op-metrics .metric strong{display:block;font-size:22px;font-weight:700;color:var(--c-primary-deep);line-height:1.2}
.op-metrics .metric span{font-size:13px;color:var(--c-text-3)}

.news-grid{margin-top:32px}
.news-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-card);height:100%;
  display:flex;flex-direction:column;
  transition:box-shadow .3s ease,transform .3s ease;
}
.news-card:hover{box-shadow:var(--sh-hover);transform:translateY(-3px)}
.news-cover{position:relative;overflow:hidden;aspect-ratio:16/9;background:linear-gradient(135deg,#1A5FBF,#12C2C9)}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-card:hover .news-cover img{transform:scale(1.04)}
.news-cover .badge{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.92);color:#154C9B}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1 1 auto}
.news-body h3{font-size:18px;margin-bottom:10px;line-height:1.5}
.news-body p{font-size:15px;color:var(--c-text-2);margin:0 0 18px;flex:1 1 auto}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--c-text-3);border-top:1px solid var(--c-line);padding-top:14px}
.news-meta .go{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;transition:transform .25s ease}
.news-card:hover .news-meta .go{transform:translateX(4px)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px}
.faq-list{margin:0;padding:0;list-style:none}
.faq-list .accordion-item{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  margin-bottom:8px;overflow:hidden;box-shadow:var(--sh-card);
  transition:box-shadow .3s ease,border-color .3s ease;
}
.faq-list .accordion-item.is-active{border-color:#C6DAF5;box-shadow:var(--sh-hover)}
.faq-list .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:48px;padding:18px 22px;font-size:17px;font-weight:600;
  color:var(--c-text);text-decoration:none;line-height:1.5;
}
.faq-list .accordion-title:hover{text-decoration:none;color:var(--c-primary);background:var(--c-bg)}
.faq-list .accordion-title::after{
  content:"+";flex:0 0 auto;font-size:22px;font-weight:400;color:var(--c-primary);line-height:1;
}
.faq-list .accordion-item.is-active .accordion-title{background:var(--c-bg);box-shadow:inset 3px 0 0 var(--c-primary)}
.faq-list .accordion-item.is-active .accordion-title::after{content:"−"}
.faq-list .accordion-content{
  display:none;padding:0 22px 22px;font-size:15px;line-height:1.8;color:var(--c-text-2);
  box-shadow:inset 3px 0 0 var(--c-primary);background:var(--c-bg);
}
.faq-list .accordion-item.is-active .accordion-content{display:block}
.faq-list .accordion-content p{margin:0}

/* ---------- 返回首页入口条 ---------- */
.back-home-bar{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
  border-radius:var(--r-card);padding:24px 28px;
  background:linear-gradient(90deg,rgba(26,95,191,.10),rgba(18,194,201,.10));
  border:1px solid var(--c-line);
}
.back-home-bar .bh-text strong{display:block;font-size:17px;font-weight:600;margin-bottom:4px}
.back-home-bar .bh-text span{font-size:14px;color:var(--c-text-2)}

/* ---------- 相关分类 ---------- */
.related-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-card);height:100%;
  display:flex;flex-direction:column;transition:box-shadow .3s ease,transform .3s ease;
}
.related-card:hover{box-shadow:var(--sh-hover);transform:translateY(-3px)}
.related-card .rc-cover{aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#1A5FBF,#12C2C9)}
.related-card .rc-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.related-card:hover .rc-cover img{transform:scale(1.04)}
.related-card .rc-body{padding:20px 22px 22px;flex:1 1 auto;display:flex;flex-direction:column}
.related-card h3{font-size:17px;margin-bottom:8px}
.related-card p{font-size:14px;color:var(--c-text-2);margin:0 0 14px;flex:1 1 auto}
.related-card .rc-link{font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px}
.related-card:hover .rc-link{text-decoration:underline}

/* ---------- 底部 CTA ---------- */
.cta-panel{
  border-radius:var(--r-panel);padding:48px;
  background:linear-gradient(135deg,#E9F0FA 0%,#F5FAFF 100%);
  border:1px solid var(--c-line);
  box-shadow:var(--sh-card);
}
.cta-panel h2{margin-bottom:12px}
.cta-panel .cta-sub{color:var(--c-text-2);max-width:640px;margin-bottom:26px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-note{margin-top:18px;font-size:13px;color:var(--c-text-3)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-primary-deep);color:rgba(255,255,255,.8);margin-top:96px;padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.f-brand{display:block;font-size:18px;font-weight:700;color:#fff;margin-bottom:12px;line-height:1.4}
.site-footer p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.75);margin:0}
.site-footer h4{font-size:15px;font-weight:600;color:#fff;margin:0 0 14px}
.f-links{display:flex;flex-direction:column}
.f-links a{font-size:14px;line-height:2;color:rgba(255,255,255,.8);text-decoration:none}
.f-links a:hover{color:#fff;text-decoration:underline}
.f-contact{display:flex;flex-direction:column;gap:8px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.8)}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.16);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:14px;font-size:13px;color:rgba(255,255,255,.7);
}
.f-links-inline{display:flex;gap:18px;flex-wrap:wrap}
.f-links-inline a{color:rgba(255,255,255,.75);text-decoration:none}
.f-links-inline a:hover{color:#fff;text-decoration:underline}

/* ---------- 断点 ---------- */
@media (max-width:1279px){
  .wrap{padding:0 32px}
  h1{font-size:34px}
}
@media (max-width:1023px){
  :root{--sp-section:72px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cat-banner{padding:44px 36px}
  h1{font-size:32px}
  h2{font-size:25px}
  .nav-pill{height:60px}
  .nav-links{gap:18px}
  .nav-links a{font-size:14px}
}
@media (max-width:767px){
  :root{--sp-section:56px}
  .wrap{padding:0 20px}
  .site-header{padding:12px 12px 0;top:10px}
  .nav-pill{height:58px;padding:0 14px;gap:10px}
  .nav-links{
    position:absolute;left:12px;right:12px;top:72px;
    display:none;flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border:1px solid var(--c-line);border-radius:20px;
    box-shadow:var(--sh-hover);padding:8px 6px;max-height:70vh;overflow:auto;
  }
  .nav-links.is-open{display:flex}
  .nav-links a{padding:14px 16px;font-size:15px;border-bottom:1px solid var(--c-bg-soft);border-radius:12px}
  .nav-links a:last-child{border-bottom:0}
  .nav-links a:hover{padding:14px 16px}
  .nav-links a.is-active::after{display:none}
  .nav-links a.is-active{background:rgba(26,95,191,.08)}
  .nav-toggle{display:inline-flex}
  .brand-sub{display:none}
  .brand-name{font-size:15px}
  .nav-right .btn-sm{height:38px;padding:0 14px;font-size:13px}
  h1{font-size:27px}
  h2{font-size:23px}
  h3{font-size:18px}
  .cat-banner{padding:32px 22px;border-radius:20px}
  .cat-banner .lead{font-size:16px}
  .cta-panel{padding:30px 22px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .site-footer{padding:52px 0 0;margin-top:64px}
  .back-home-bar{padding:22px}
  .overview-panel{padding:20px}
}
@media (max-width:575px){
  .btn{height:46px;padding:0 20px;font-size:14px}
  .btn-block-mobile{width:100%}
  .banner-actions .btn{width:100%}
  .cta-actions .btn{width:100%}
  .op-metrics{gap:18px}
  .news-body{padding:18px 18px 20px}
  .faq-list .accordion-title{font-size:16px;padding:16px 18px}
  .faq-list .accordion-content{padding:0 18px 18px}
}