/* roulang page: index */
:root{
  --c-primary:#1E4E79;
  --c-primary-700:#153A5C;
  --c-primary-050:#EDF3F9;
  --c-accent:#C08A4E;
  --c-accent-050:#FBF4EA;
  --c-positive:#2E7D6B;
  --c-bg:#F6F7F9;
  --c-surface:#FFFFFF;
  --c-line:#E8ECF1;
  --c-text:#1D2733;
  --c-muted:#5C6A7A;
  --c-meta:#7A8794;
  --r-card:14px;
  --r-btn:10px;
  --r-img:14px;
  --sh-1:0 1px 2px rgba(20,40,70,.04),0 4px 14px rgba(20,40,70,.06);
  --sh-2:0 8px 26px rgba(20,40,70,.10);
  --sec-y:96px;
  --bs-primary:#1E4E79;
  --bs-primary-rgb:30,78,121;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;line-height:1.9;color:var(--c-text);background:var(--c-bg);
}
img{max-width:100%;display:block;border:0}
h1,h2,h3,h4,p,ul,ol,dl{margin:0}
ul,ol{padding:0;list-style:none}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary-700);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;padding-left:24px;padding-right:24px}
@media (min-width:1400px){.container{max-width:1200px}}
.section{padding:var(--sec-y) 0}
.section-tight{padding:72px 0}
.bg-white-sec{background:var(--c-surface)}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.08em;font-weight:600;
  color:var(--c-accent);background:var(--c-accent-050);
  padding:4px 10px;border-radius:6px;margin-bottom:14px;
}
.sec-title{font-size:30px;font-weight:700;line-height:1.35;position:relative;padding-left:18px;color:var(--c-text)}
.sec-title::before{content:"";position:absolute;left:0;top:9px;bottom:9px;width:4px;border-radius:2px;background:var(--c-accent)}
.sec-title.center{padding-left:0;text-align:center}
.sec-title.center::before{display:none}
.sec-sub{margin-top:14px;color:var(--c-muted);font-size:16px;line-height:1.9}
.sec-head.center .sec-sub{margin-left:auto;margin-right:auto}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}

/* ============ header / nav ============ */
.site-header{
  position:sticky;top:0;z-index:1030;background:var(--c-surface);
  border-bottom:1px solid var(--c-line);box-shadow:0 1px 3px rgba(20,40,70,.05);
}
.nav-inner{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-mark{
  width:38px;height:38px;border-radius:10px;background:var(--c-primary-050);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark svg{width:22px;height:22px;stroke:var(--c-primary);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.brand-name{font-size:18px;font-weight:700;color:var(--c-primary-700);letter-spacing:.01em;line-height:1.2}
.brand-sub{display:block;font-size:11px;font-weight:400;color:var(--c-meta);letter-spacing:.06em;line-height:1.4}
.nav-main{display:flex;align-items:center;gap:28px;margin-left:8px;flex:1 1 auto}
.nav-link{font-size:15px;color:var(--c-text);padding:6px 0;position:relative;white-space:nowrap}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-link:hover{color:var(--c-primary);text-decoration:none}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--c-primary);font-weight:700}
.nav-link.active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:14px;margin-left:auto;flex:0 0 auto}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search svg{position:absolute;left:13px;width:16px;height:16px;stroke:var(--c-meta);fill:none;stroke-width:1.9;stroke-linecap:round}
.nav-search input{
  width:224px;height:40px;border-radius:20px;border:1px solid transparent;background:#F1F3F6;
  padding:0 16px 0 36px;font-size:14px;color:var(--c-text);outline:none;transition:all .2s ease;
}
.nav-search input::placeholder{color:var(--c-meta)}
.nav-search input:focus{background:var(--c-surface);border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(30,78,121,.12)}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  background:var(--c-primary);color:#fff;font-size:15px;font-weight:600;
  border:1px solid var(--c-primary);cursor:pointer;transition:all .22s ease;white-space:nowrap;
}
.btn-main:hover{background:var(--c-primary-700);border-color:var(--c-primary-700);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:0 8px 18px rgba(21,58,92,.22)}
.btn-main:active{transform:translateY(0);box-shadow:none}
.btn-main-sm{height:40px;padding:0 18px;font-size:14px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  background:transparent;color:var(--c-primary);font-size:15px;font-weight:600;
  border:1px solid var(--c-primary);cursor:pointer;transition:all .22s ease;white-space:nowrap;
}
.btn-ghost:hover{background:var(--c-primary-050);color:var(--c-primary-700);text-decoration:none;transform:translateY(-1px)}
.btn-white{
  display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 24px;
  border-radius:var(--r-btn);background:#fff;color:var(--c-primary-700);font-size:15px;font-weight:700;
  border:1px solid #fff;transition:all .22s ease;
}
.btn-white:hover{background:var(--c-primary-050);text-decoration:none;transform:translateY(-1px)}
.link-more{font-size:14px;font-weight:600;color:var(--c-primary)}
.link-more::after{content:" →";font-weight:400}
.link-more:hover{text-decoration:underline;text-underline-offset:3px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--c-line);
  background:var(--c-surface);align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle svg{width:20px;height:20px;stroke:var(--c-primary-700);fill:none;stroke-width:1.9;stroke-linecap:round}
.nav-drawer{width:320px;max-width:88vw;background:#fff}
.nav-drawer .drawer-head{display:flex;align-items:center;justify-content:space-between;padding:20px 22px;border-bottom:1px solid var(--c-line)}
.nav-drawer .drawer-body{padding:18px 22px 28px}
.drawer-link{display:block;font-size:16px;padding:13px 0;border-bottom:1px dashed var(--c-line);color:var(--c-text)}
.drawer-link.active{color:var(--c-primary);font-weight:700}
.drawer-search{position:relative;margin:18px 0 16px}
.drawer-search input{width:100%;height:44px;border-radius:10px;border:1px solid var(--c-line);background:#F5F7FA;padding:0 14px;font-size:14px;outline:none}
.drawer-search input:focus{border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(30,78,121,.12)}

/* ============ hero ============ */
.hero{
  background:linear-gradient(180deg,#FFFFFF 0%,#F4F7FA 100%);
  padding:76px 0 84px;border-bottom:1px solid var(--c-line);
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--c-primary);
  background:var(--c-primary-050);border-radius:6px;padding:6px 12px;margin-bottom:20px;
}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:inline-block}
.hero h1{font-size:42px;line-height:1.25;font-weight:700;letter-spacing:-.01em;color:var(--c-text)}
.hero-sub{margin-top:18px;font-size:19px;line-height:1.7;color:var(--c-primary-700);font-weight:600}
.hero-desc{margin-top:16px;font-size:16px;color:var(--c-muted);max-width:560px}
.hero-actions{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.hero-pts{display:flex;gap:26px;margin-top:34px;flex-wrap:wrap}
.hero-pts li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-muted)}
.hero-pts svg{width:17px;height:17px;stroke:var(--c-positive);fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.hero-media{position:relative;border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-1);border:1px solid var(--c-line);background:#fff}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-badge{
  position:absolute;right:16px;bottom:16px;background:#fff;border-radius:12px;
  padding:12px 16px;box-shadow:var(--sh-2);border:1px solid var(--c-line);text-align:left;
}
.hero-badge strong{display:block;font-size:22px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;line-height:1.2}
.hero-badge span{font-size:12px;color:var(--c-meta)}

/* ============ metrics ============ */
.metrics{background:var(--c-surface);border-bottom:1px solid var(--c-line)}
.metric-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px 22px 24px;position:relative;overflow:hidden;height:100%;transition:transform .25s ease,box-shadow .25s ease;
}
.metric-card::before{content:"";position:absolute;left:0;top:0;right:0;height:3px;background:var(--c-primary)}
.metric-card.accent::before{background:var(--c-accent)}
.metric-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.metric-num{font-size:40px;font-weight:700;line-height:1.15;color:var(--c-primary);font-variant-numeric:tabular-nums;min-width:3ch}
.metric-num small{font-size:15px;font-weight:600;color:var(--c-meta);margin-left:4px}
.metric-label{margin-top:10px;font-size:14px;color:var(--c-muted)}

/* ============ services ============ */
.svc-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px;height:100%;display:flex;flex-direction:column;gap:12px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.svc-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D6E0EA}
.svc-icon{
  width:46px;height:46px;border-radius:12px;background:var(--c-primary-050);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.svc-icon svg{width:23px;height:23px;stroke:var(--c-primary);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.svc-card h3{font-size:19px;font-weight:600;line-height:1.5}
.svc-card p{font-size:15px;color:var(--c-muted);flex:1 1 auto}
.svc-card-feature{padding:0;overflow:hidden;flex-direction:row;align-items:stretch}
.svc-card-feature .svc-media{flex:0 0 44%;overflow:hidden}
.svc-card-feature .svc-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.svc-card-feature:hover .svc-media img{transform:scale(1.03)}
.svc-card-feature .svc-body{padding:30px 30px 28px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}

/* ============ compare ============ */
.compare-wrap{background:var(--c-surface)}
.compare-card{border-radius:var(--r-card);padding:30px;height:100%;border:1px solid var(--c-line)}
.compare-before{background:#F4F6F8}
.compare-after{background:var(--c-primary-050);border-color:#D8E4EE}
.compare-head{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;margin-bottom:18px}
.compare-before .compare-head{color:var(--c-muted)}
.compare-after .compare-head{color:var(--c-primary-700)}
.compare-head span.dot{width:10px;height:10px;border-radius:50%;background:var(--c-meta);display:inline-block}
.compare-after .compare-head span.dot{background:var(--c-primary)}
.compare-list li{display:flex;gap:10px;padding:11px 0;font-size:15px;color:var(--c-muted);border-bottom:1px dashed rgba(122,135,148,.28);line-height:1.7}
.compare-list li:last-child{border-bottom:0}
.compare-list li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-meta);margin-top:11px;flex:0 0 auto}
.compare-after .compare-list li{color:var(--c-text)}
.compare-after .compare-list li::before{background:var(--c-accent)}
.gain-row{margin-top:22px;padding-top:18px;border-top:1px solid rgba(30,78,121,.14)}
.gain-item{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:7px 0}
.gain-item b{font-size:22px;color:var(--c-positive);font-variant-numeric:tabular-nums}
.gain-item span{font-size:14px;color:var(--c-muted)}
.bar{height:8px;border-radius:6px;background:rgba(122,135,148,.18);overflow:hidden;margin-top:6px}
.bar i{display:block;height:100%;border-radius:6px;background:var(--c-primary)}
.bar.after i{background:var(--c-positive)}

/* ============ news ============ */
.news-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;height:100%;display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.news-thumb{display:block;overflow:hidden;background:#EEF1F5}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.news-badge{
  align-self:flex-start;font-size:12px;font-weight:600;color:var(--c-primary);
  background:var(--c-primary-050);border-radius:6px;padding:3px 9px;
}
.news-title{font-size:17px;font-weight:600;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-title a{color:var(--c-text)}
.news-title a:hover{color:var(--c-primary);text-decoration:none}
.news-sum{font-size:14px;color:var(--c-muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:12px;border-top:1px solid var(--c-line)}
.news-date{font-size:13px;color:var(--c-meta)}
.news-empty{
  background:#F8FAFC;border:1px dashed #C9D6E3;border-radius:var(--r-card);
  padding:56px 24px;text-align:center;
}
.news-empty svg{width:44px;height:44px;stroke:#9DB0C2;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;margin:0 auto 16px}
.news-empty p{font-size:15px;color:var(--c-muted);margin-bottom:14px}

/* ============ faq ============ */
.faq-acc .accordion-item{
  border:1px solid var(--c-line);border-radius:12px;background:#fff;margin-bottom:12px;overflow:hidden;
}
.faq-acc .accordion-item:last-child{margin-bottom:0}
.faq-acc .accordion-button{
  background:#fff;font-size:17px;font-weight:600;color:var(--c-text);line-height:1.6;
  padding:20px 56px 20px 22px;box-shadow:none;border-radius:12px;position:relative;
}
.faq-acc .accordion-button::after{
  content:"+";background-image:none;font-size:22px;font-weight:400;color:var(--c-primary);
  width:auto;height:auto;line-height:1;transform:none;position:absolute;right:22px;top:50%;margin-top:-12px;
}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--c-primary);background:var(--c-primary-050);box-shadow:inset 3px 0 0 var(--c-primary);
}
.faq-acc .accordion-button:not(.collapsed)::after{content:"−";color:var(--c-primary)}
.faq-acc .accordion-button:focus{box-shadow:0 0 0 3px rgba(30,78,121,.14);border-color:transparent}
.faq-acc .accordion-body{font-size:15px;line-height:1.9;color:var(--c-muted);padding:6px 22px 22px}

/* ============ consult ============ */
.consult-wrap{background:linear-gradient(180deg,#F4F7FA 0%,#FFFFFF 100%);border-top:1px solid var(--c-line)}
.form-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:32px;box-shadow:var(--sh-1)}
.form-row{margin-bottom:18px}
.form-label{display:block;font-size:14px;font-weight:600;color:var(--c-text);margin-bottom:8px}
.form-control-x{
  width:100%;height:46px;border-radius:var(--r-btn);border:1px solid var(--c-line);
  background:#F8FAFC;padding:0 14px;font-size:15px;color:var(--c-text);outline:none;transition:all .2s ease;
}
textarea.form-control-x{height:auto;min-height:118px;padding:12px 14px;line-height:1.8;resize:vertical}
.form-control-x:focus{background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(30,78,121,.12)}
.form-control-x::placeholder{color:#9AA7B4}
.form-check{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--c-muted);line-height:1.7}
.form-check input{width:17px;height:17px;margin-top:5px;accent-color:var(--c-primary);flex:0 0 auto}
.form-hint{font-size:13px;color:var(--c-accent)}
.form-ok{margin-top:16px;font-size:14px;color:var(--c-positive);display:none}
.side-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px}
.side-card + .side-card{margin-top:20px}
.side-list li{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--c-line);font-size:15px;color:var(--c-muted);line-height:1.7}
.side-list li:last-child{border-bottom:0}
.side-list svg{width:18px;height:18px;stroke:var(--c-primary);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;margin-top:5px;flex:0 0 auto}
.qr-box{
  width:110px;height:110px;border-radius:12px;border:1px dashed #C9D6E3;background:#F8FAFC;
  display:flex;align-items:center;justify-content:center;text-align:center;font-size:12px;color:var(--c-meta);padding:10px;
}

/* ============ cta band ============ */
.cta-band{background:var(--c-primary-700);color:#fff;padding:54px 0;border-radius:0}
.cta-band h2{font-size:26px;font-weight:700;color:#fff}
.cta-band p{margin-top:8px;font-size:14px;color:#C9D6E3}

/* ============ footer ============ */
.site-footer{background:var(--c-primary-700);color:#C9D6E3;padding:64px 0 0;margin-top:0}
.site-footer h3{font-size:16px;font-weight:700;color:#fff;margin-bottom:18px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:rgba(255,255,255,.1)}
.footer-brand .brand-mark svg{stroke:#fff}
.footer-brand span{font-size:18px;font-weight:700;color:#fff}
.footer-desc{font-size:14px;line-height:1.9;color:#C9D6E3;max-width:320px}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{
  width:36px;height:36px;border-radius:10px;background:rgba(255,255,255,.09);
  display:flex;align-items:center;justify-content:center;transition:background .2s ease;
}
.footer-social a:hover{background:rgba(255,255,255,.2);text-decoration:none}
.footer-social svg{width:17px;height:17px;stroke:#E4EDF5;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.footer-links li{margin-bottom:11px}
.footer-links a{font-size:14px;color:#C9D6E3;display:inline-block;transition:all .2s ease}
.footer-links a:hover{color:#fff;transform:translateX(2px);text-decoration:none}
.footer-contact li{font-size:14px;line-height:1.9;margin-bottom:11px;color:#C9D6E3}
.footer-contact strong{color:#fff;font-weight:600}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(201,214,227,.2);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#A9BCD0;
}
.footer-bottom a{color:#C9D6E3}
.footer-bottom a:hover{color:#fff}

/* ============ responsive ============ */
@media (max-width:1199.98px){
  .nav-search input{width:180px}
  .nav-main{gap:20px}
}
@media (max-width:991.98px){
  :root{--sec-y:72px}
  .nav-main,.nav-search{display:none}
  .nav-toggle{display:flex}
  .nav-inner{height:64px;gap:16px}
  .hero{padding:52px 0 60px}
  .hero h1{font-size:32px}
  .hero-sub{font-size:17px}
  .sec-title{font-size:25px}
  .sec-title::before{top:7px;bottom:7px}
  .svc-card-feature{flex-direction:column}
  .svc-card-feature .svc-media{flex:0 0 auto}
  .svc-card-feature .svc-media img{aspect-ratio:16/9}
}
@media (max-width:575.98px){
  :root{--sec-y:56px}
  .container{padding-left:16px;padding-right:16px}
  .hero{padding:40px 0 48px}
  .hero h1{font-size:28px;line-height:1.3}
  .hero-sub{font-size:16px}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%}
  .hero-pts{gap:14px}
  .hero-pts li{font-size:13px}
  .sec-title{font-size:22px}
  .sec-sub{font-size:15px}
  .metric-num{font-size:32px}
  .form-card{padding:22px}
  .compare-card{padding:22px}
  .cta-band h2{font-size:21px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: article */
*,*::before,*::after{box-sizing:border-box}
:root{
  --c-primary:#1E4E79;
  --c-primary-700:#153A5C;
  --c-primary-050:#EDF3F9;
  --c-accent:#C08A4E;
  --c-accent-050:#FBF4EA;
  --c-positive:#2E7D6B;
  --c-bg:#F6F7F9;
  --c-surface:#FFFFFF;
  --c-line:#E8ECF1;
  --c-text:#1D2733;
  --c-muted:#5C6A7A;
  --c-meta:#7A8794;
  --r-card:14px;
  --r-img:14px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(20,40,70,.04),0 4px 14px rgba(20,40,70,.06);
  --sh-2:0 8px 26px rgba(20,40,70,.10);
  --sp-section:88px;
}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-primary);text-decoration:none}
a:hover{color:var(--c-primary-700)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;color:var(--c-text)}
p{margin:0}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--c-line);box-shadow:0 1px 3px rgba(20,40,70,.05)}
.header-inner{display:flex;align-items:center;gap:26px;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--c-primary-700);text-decoration:none;white-space:nowrap}
.brand:hover{color:var(--c-primary-700)}
.brand-mark{width:36px;height:36px;border-radius:10px;background:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto}
.brand-mark svg{width:22px;height:22px;fill:none;stroke:#fff;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.nav-main{display:flex;align-items:center;gap:28px}
.nav-link{position:relative;display:inline-block;padding:6px 0;font-size:15px;color:var(--c-text);text-decoration:none;transition:color .2s ease}
.nav-link::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--c-primary);transition:right .25s ease}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after{right:0}
.nav-link.active{color:var(--c-primary);font-weight:700}
.nav-link.active::after{right:0}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.search-box{display:flex;align-items:center;gap:6px;height:40px;padding:0 6px 0 14px;background:#F1F4F8;border:1px solid transparent;border-radius:20px;transition:background .2s ease,border-color .2s ease,box-shadow .2s ease}
.search-box:focus-within{background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(30,78,121,.12)}
.search-box input{border:0;background:transparent;outline:none;font-size:14px;width:158px}
.search-box button{width:30px;height:28px;border:0;border-radius:14px;background:var(--c-primary);color:#fff;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:background .2s ease}
.search-box button:hover{background:var(--c-primary-700)}
.search-box svg{width:15px;height:15px;fill:none;stroke:#fff;stroke-width:2;stroke-linecap:round}
.nav-toggle{display:none;width:40px;height:40px;border:1px solid var(--c-line);background:#fff;border-radius:10px;align-items:center;justify-content:center;cursor:pointer}
.nav-toggle svg{width:20px;height:20px;fill:none;stroke:var(--c-primary-700);stroke-width:1.8;stroke-linecap:round}
.drawer-mask{position:fixed;inset:0;background:rgba(21,58,92,.38);opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;z-index:1070}
.drawer-mask.is-open{opacity:1;visibility:visible}
.mobile-drawer{position:fixed;top:0;right:0;height:100%;width:min(84vw,340px);background:#fff;padding:22px 20px;overflow-y:auto;transform:translateX(100%);transition:transform .3s ease;box-shadow:-8px 0 30px rgba(20,40,70,.14);z-index:1080}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-head span{font-size:17px;font-weight:700;color:var(--c-primary-700)}
.drawer-close{width:36px;height:36px;border:1px solid var(--c-line);background:#fff;border-radius:10px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}
.drawer-close svg{width:16px;height:16px;fill:none;stroke:var(--c-text);stroke-width:2;stroke-linecap:round}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:22px}
.drawer-nav a{font-size:16px;padding:12px 4px;border-bottom:1px solid var(--c-line);color:var(--c-text);text-decoration:none}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--c-primary);font-weight:600}
.drawer-search{display:flex;align-items:center;gap:8px;background:#F1F4F8;border-radius:10px;padding:0 12px;height:44px;margin-bottom:14px}
.drawer-search input{border:0;background:transparent;outline:none;width:100%;font-size:15px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 22px;font-size:15px;font-weight:600;border:1px solid transparent;border-radius:var(--r-btn);text-decoration:none;cursor:pointer;transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-outline{background:#fff;border-color:var(--c-primary);color:var(--c-primary)}
.btn-outline:hover{background:var(--c-primary-050);color:var(--c-primary-700);transform:translateY(-1px)}
.btn-light{background:#fff;border-color:#fff;color:var(--c-primary-700)}
.btn-light:hover{background:var(--c-primary-050);color:var(--c-primary-700);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}

/* ---------- article layout ---------- */
.main-wrap{padding:26px 0 0}
.breadcrumb-bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-meta);margin-bottom:20px}
.breadcrumb-bar a{color:var(--c-muted);border-bottom:1px solid transparent;transition:color .2s ease,border-color .2s ease}
.breadcrumb-bar a:hover{color:var(--c-primary);border-bottom-color:var(--c-primary)}
.breadcrumb-bar .sep{color:#C3CCD6}
.breadcrumb-bar .current{color:var(--c-text);max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:34px 38px 38px}
.eyebrow{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.08em;color:#8A6134;background:var(--c-accent-050);border-radius:6px;padding:5px 10px}
.article-title{font-size:34px;line-height:1.35;margin:14px 0 16px;word-break:break-word}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:14px;color:var(--c-meta)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#C8D1DB}
.article-cover{margin:24px 0 6px;border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/9;background:var(--c-primary-050)}
.article-cover img{width:100%;height:100%;object-fit:cover}
.read-note{display:flex;gap:12px;align-items:flex-start;background:var(--c-primary-050);border-left:3px solid var(--c-primary);border-radius:0 10px 10px 0;padding:15px 18px;font-size:14px;line-height:1.8;color:var(--c-muted);margin:22px 0 26px}
.read-note svg{width:18px;height:18px;flex:0 0 auto;margin-top:4px;fill:none;stroke:var(--c-primary);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

.article-body{font-size:16px;line-height:1.9;color:var(--c-text);word-break:break-word}
.article-body p{margin:0 0 1.2em}
.article-body h1{font-size:26px;margin:30px 0 14px}
.article-body h2{font-size:23px;margin:34px 0 14px;padding-left:12px;border-left:4px solid var(--c-accent)}
.article-body h3{font-size:19px;font-weight:600;margin:26px 0 12px}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 1.3em}
.article-body li{margin-bottom:8px}
.article-body blockquote{margin:0 0 1.3em;padding:14px 18px;background:var(--c-primary-050);border-left:3px solid var(--c-primary);border-radius:0 10px 10px 0;color:var(--c-muted)}
.article-body img{border-radius:12px;margin:18px auto}
.article-body figure{margin:20px 0}
.article-body figcaption{font-size:13px;color:var(--c-meta);text-align:center;margin-top:8px}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 1.4em;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:10px 12px;text-align:left;vertical-align:top}
.article-body thead th{background:var(--c-primary-050);color:var(--c-primary-700);font-weight:600}
.article-body tbody tr:nth-child(even){background:#FAFBFD}
.article-body a{color:var(--c-primary);border-bottom:1px solid rgba(30,78,121,.35)}
.article-body a:hover{border-bottom-width:2px}
.article-body strong{font-weight:700}

.empty-state{text-align:center;padding:52px 20px;background:#FBFCFE;border:1px dashed #D3DEE9;border-radius:var(--r-card);margin-top:26px}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{font-size:15px;color:var(--c-muted);margin-bottom:20px}

.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:32px;padding-top:22px;border-top:1px dashed var(--c-line)}
.tag-row .label{font-size:14px;color:var(--c-meta);margin-right:4px}
.tag{display:inline-block;font-size:13px;color:var(--c-primary);background:var(--c-primary-050);border-radius:6px;padding:5px 11px;transition:background .2s ease,color .2s ease}
.tag:hover{background:var(--c-primary);color:#fff}

.pp-row{margin-top:24px}
.pp-card{display:block;height:100%;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:18px 20px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.pp-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D6E2EE}
.pp-label{display:block;font-size:12px;letter-spacing:.08em;color:var(--c-meta);margin-bottom:6px}
.pp-title{display:block;font-size:16px;font-weight:600;color:var(--c-text);line-height:1.6}
.pp-card:hover .pp-title{color:var(--c-primary)}
.pp-desc{display:block;font-size:14px;color:var(--c-muted);margin-top:6px;line-height:1.7}

/* ---------- sidebar ---------- */
.side-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:22px;margin-bottom:20px}
.side-card h3{font-size:16px;font-weight:700;line-height:1.3;padding-left:10px;border-left:3px solid var(--c-primary);margin-bottom:14px}
.side-list{list-style:none;margin:0;padding:0}
.side-list li{position:relative;padding-left:18px;font-size:14px;line-height:1.8;color:var(--c-muted);margin-bottom:10px}
.side-list li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--c-accent)}
.side-list li:last-child{margin-bottom:0}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.side-cta p{font-size:14px;line-height:1.8;color:var(--c-muted);margin-bottom:16px}
.side-cta .btn{margin-bottom:10px}
.side-cta .btn:last-child{margin-bottom:0}
.side-thumb{border-radius:10px;overflow:hidden;aspect-ratio:4/3;margin-bottom:14px;background:var(--c-primary-050)}
.side-thumb img{width:100%;height:100%;object-fit:cover}

/* ---------- sections ---------- */
.section{padding-top:var(--sp-section)}
.section-head{margin-bottom:28px}
.eyebrow-line{display:block;font-size:12px;font-weight:700;letter-spacing:.08em;color:#8A6134;margin-bottom:10px}
.section-title{position:relative;font-size:28px;line-height:1.35;padding-left:14px}
.section-title::before{content:"";position:absolute;left:0;top:5px;bottom:5px;width:4px;border-radius:2px;background:var(--c-accent)}
.section-sub{font-size:15px;color:var(--c-muted);margin-top:10px;max-width:720px}

.faq-acc .accordion-item{border:1px solid var(--c-line);border-radius:12px;margin-bottom:12px;background:#fff;overflow:hidden}
.faq-acc .accordion-button{font-size:17px;font-weight:600;color:var(--c-text);background:#fff;padding:18px 20px;box-shadow:none;border-radius:12px}
.faq-acc .accordion-button:not(.collapsed){color:var(--c-primary);border-left:3px solid var(--c-primary);background:#fff}
.faq-acc .accordion-button:focus{box-shadow:none;border-color:var(--c-line)}
.faq-acc .accordion-button::after{content:"+";background-image:none;width:24px;height:24px;font-size:19px;line-height:1;font-weight:400;color:var(--c-primary);display:flex;align-items:center;justify-content:center;transform:none;transition:transform .2s ease}
.faq-acc .accordion-button:not(.collapsed)::after{content:"−";transform:none}
.faq-acc .accordion-body{font-size:15px;line-height:1.85;color:var(--c-muted);padding:0 20px 20px}

.cta-band{padding-top:var(--sp-section)}
.cta-inner{background:var(--c-primary);border-radius:18px;padding:44px 46px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;box-shadow:var(--sh-2)}
.cta-inner h2{font-size:26px;color:#fff;margin-bottom:10px}
.cta-inner p{font-size:15px;color:#D7E3EF;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- footer ---------- */
.site-footer{background:var(--c-primary-700);color:#C9D6E3;margin-top:var(--sp-section);padding:56px 0 0}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;background:rgba(255,255,255,.12)}
.footer-desc{font-size:14px;line-height:1.85;color:#B9C8D8;margin-bottom:18px}
.footer-social{display:flex;gap:10px}
.footer-social a{width:34px;height:34px;border-radius:9px;background:rgba(255,255,255,.08);display:inline-flex;align-items:center;justify-content:center;transition:background .2s ease}
.footer-social a:hover{background:rgba(255,255,255,.2)}
.footer-social svg{width:18px;height:18px;fill:none;stroke:#fff;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.site-footer h3{font-size:16px;color:#fff;font-weight:600;margin-bottom:16px}
.footer-links,.footer-contact{list-style:none;margin:0;padding:0}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:#C9D6E3;display:inline-block;transition:color .2s ease,transform .2s ease}
.footer-links a:hover{color:#fff;transform:translateX(2px)}
.footer-contact li{font-size:14px;line-height:1.85;color:#B9C8D8;margin-bottom:10px}
.footer-contact strong{color:#fff;font-weight:600}
.footer-bottom{margin-top:44px;border-top:1px solid rgba(255,255,255,.12);padding:18px 0;display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;font-size:13px;color:#9FB2C6}

/* ---------- to top ---------- */
.to-top{position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:50%;background:#fff;border:1px solid var(--c-primary);color:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;box-shadow:var(--sh-1);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease,transform .25s ease;z-index:1050;cursor:pointer}
.to-top.is-visible{opacity:1;visibility:visible}
.to-top:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.to-top svg{width:18px;height:18px;fill:none;stroke:var(--c-primary);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

@media (max-width:1199.98px){
  .search-box input{width:120px}
}
@media (max-width:991.98px){
  :root{--sp-section:64px}
  .container{padding-left:20px;padding-right:20px}
  .nav-main{display:none}
  .search-box{display:none}
  .header-cta{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{height:64px;gap:16px}
  .article-card{padding:24px 20px 28px}
  .article-title{font-size:28px}
  .article-body h2{font-size:21px}
  .section-title{font-size:24px}
  .cta-inner{padding:32px 24px}
  .cta-inner h2{font-size:22px}
  .breadcrumb-bar .current{max-width:100%}
  .side-card{margin-top:4px}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px}
  .article-title{font-size:25px}
  .article-body{font-size:15.5px}
  .section-title{font-size:22px}
  .brand{font-size:16px}
  .footer-bottom{flex-direction:column}
  .to-top{right:14px;bottom:18px}
}

/* roulang page: category1 */
:root{
  --c-primary:#1E4E79;
  --c-primary-700:#153A5C;
  --c-primary-050:#EDF3F9;
  --c-accent:#C08A4E;
  --c-accent-050:#FBF4EA;
  --c-accent-700:#9A6C36;
  --c-positive:#2E7D6B;
  --c-bg:#F6F7F9;
  --c-surface:#FFFFFF;
  --c-line:#E8ECF1;
  --c-text:#1D2733;
  --c-muted:#5C6A7A;
  --c-meta:#7A8794;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --sh-1:0 1px 2px rgba(20,40,70,.04),0 4px 14px rgba(20,40,70,.06);
  --sh-2:0 8px 26px rgba(20,40,70,.10);
  --section-y:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,text-decoration-color .2s ease;}
a:hover{color:var(--c-primary-700);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--c-text);line-height:1.3;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:4px;}
.container{width:100%;max-width:1200px !important;padding-left:24px;padding-right:24px;margin:0 auto;}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;text-decoration:none;}
.btn:hover{text-decoration:none;transform:translateY(-1px);}
.btn-primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.btn-primary:hover,.btn-primary:focus{background:var(--c-primary-700);border-color:var(--c-primary-700);color:#fff;box-shadow:0 8px 20px rgba(21,58,92,.22);}
.btn-outline{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn-outline:hover{background:var(--c-primary-050);color:var(--c-primary-700);border-color:var(--c-primary-700);}
.btn-white{background:#fff;color:var(--c-primary-700);border-color:#fff;}
.btn-white:hover{background:#EDF3F9;color:var(--c-primary-700);border-color:#EDF3F9;box-shadow:0 8px 20px rgba(0,0,0,.14);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.link-text{color:var(--c-primary);font-weight:600;font-size:15px;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;}
.link-text:hover{color:var(--c-primary-700);text-decoration-thickness:2px;}

/* ===== 导航 ===== */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--c-line);box-shadow:0 1px 3px rgba(20,40,70,.05);}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{width:36px;height:36px;border-radius:10px;background:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;}
.brand-mark svg{width:22px;height:22px;stroke:#fff;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.brand-text{font-size:18px;font-weight:700;color:var(--c-primary-700);letter-spacing:.01em;}
.nav-main{display:flex;align-items:center;gap:28px;margin-left:12px;}
.nav-link{position:relative;font-size:15px;color:var(--c-text);padding:6px 0;font-weight:500;text-decoration:none;}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;}
.nav-link:hover{color:var(--c-primary);text-decoration:none;}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{font-weight:700;color:var(--c-primary);}
.nav-link.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto;}
.nav-search{position:relative;display:flex;align-items:center;}
.nav-search svg{position:absolute;left:14px;width:16px;height:16px;stroke:var(--c-meta);fill:none;stroke-width:1.8;stroke-linecap:round;}
.nav-search input{height:40px;width:200px;border-radius:20px;border:1px solid transparent;background:#F1F3F6;padding:0 16px 0 38px;font-size:14px;color:var(--c-text);transition:background-color .2s ease,border-color .2s ease,box-shadow .2s ease;}
.nav-search input::placeholder{color:var(--c-meta);}
.nav-search input:focus{background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 3px var(--c-primary-050);outline:none;}
.btn-nav{height:42px;padding:0 20px;font-size:15px;}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--c-line);background:#fff;border-radius:var(--r-btn);flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-primary-700);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-drawer{display:none;border-top:1px solid var(--c-line);background:#fff;padding:18px 0 24px;}
.mobile-drawer.open{display:block;}
.mobile-drawer .drawer-link{display:block;font-size:16px;padding:12px 4px;border-bottom:1px solid var(--c-line);color:var(--c-text);font-weight:500;}
.mobile-drawer .drawer-link.active{color:var(--c-primary);font-weight:700;}
.mobile-drawer .drawer-search{margin-top:18px;}
.mobile-drawer .drawer-search input{width:100%;height:46px;border-radius:var(--r-input);border:1px solid var(--c-line);background:#F1F3F6;padding:0 16px;}
.mobile-drawer .drawer-search input:focus{border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px var(--c-primary-050);outline:none;}
.mobile-drawer .btn{width:100%;margin-top:14px;}

/* ===== 页面头部 ===== */
.page-hero{position:relative;padding:64px 0 84px;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;background-repeat:no-repeat;}
.page-hero::before{content:"";position:absolute;inset:0;background:rgba(255,255,255,.88);}
.page-hero .container{position:relative;z-index:1;}
.breadcrumb-nav{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-meta);margin-bottom:22px;flex-wrap:wrap;}
.breadcrumb-nav a{color:var(--c-muted);text-decoration:none;}
.breadcrumb-nav a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.breadcrumb-nav .sep{color:#C3CCD6;}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:.08em;color:var(--c-accent-700);background:var(--c-accent-050);border-radius:6px;padding:5px 12px;margin-bottom:18px;font-weight:600;}
.page-hero h1{font-size:42px;line-height:1.25;letter-spacing:-.01em;margin-bottom:20px;max-width:900px;}
.page-hero h1 .hl{color:var(--c-primary);}
.page-hero .lead{font-size:17px;line-height:1.9;color:var(--c-muted);max-width:820px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:26px;margin-top:34px;padding-top:26px;border-top:1px solid rgba(30,78,121,.14);}
.hero-fact{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--c-muted);}
.hero-fact svg{width:18px;height:18px;stroke:var(--c-primary);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:0 0 auto;}

/* ===== 板块通用 ===== */
.section{padding:var(--section-y) 0;}
.section-alt{background:#fff;}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head h2{font-size:29px;position:relative;padding-left:18px;margin-bottom:16px;}
.section-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--c-accent);}
.section-head p{color:var(--c-muted);font-size:16px;margin:0;}
.section-head .eyebrow{margin-bottom:14px;}

/* ===== 图文交替 ===== */
.row-media{align-items:center;margin-bottom:64px;}
.row-media:last-child{margin-bottom:0;}
.media-figure{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--sh-1);background:#fff;}
.media-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .25s ease;}
.media-figure:hover img{transform:scale(1.03);}
.media-body h3{font-size:21px;margin-bottom:14px;}
.media-body p{color:var(--c-muted);margin-bottom:14px;}
.media-list li{position:relative;padding-left:22px;margin-bottom:10px;color:var(--c-muted);font-size:15px;}
.media-list li::before{content:"";position:absolute;left:0;top:12px;width:8px;height:8px;border-radius:50%;background:var(--c-primary-050);border:2px solid var(--c-primary);}

/* ===== 编号清单 ===== */
.step-list{border-top:1px solid var(--c-line);}
.step-item{display:flex;gap:22px;padding:26px 0;border-bottom:1px solid var(--c-line);transition:background-color .2s ease;}
.step-item:hover{background:#fff;}
.step-num{flex:0 0 auto;font-size:22px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;letter-spacing:.02em;width:52px;}
.step-content h3{font-size:18px;margin-bottom:8px;}
.step-content p{color:var(--c-muted);font-size:15px;margin:0;}

/* ===== 场景卡片 ===== */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.info-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;transition:transform .25s ease,box-shadow .25s ease;}
.info-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.info-card .thumb{overflow:hidden;}
.info-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .25s ease;}
.info-card:hover .thumb img{transform:scale(1.03);}
.info-card .body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.info-card h3{font-size:18px;}
.info-card p{color:var(--c-muted);font-size:15px;margin:0;}
.badge-soft{display:inline-block;align-self:flex-start;font-size:12.5px;font-weight:600;color:var(--c-primary);background:var(--c-primary-050);border-radius:6px;padding:4px 10px;}

/* ===== 对照双栏 ===== */
.compare-wrap{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-col{border-radius:var(--r-card);border:1px solid var(--c-line);padding:28px 26px;background:#fff;}
.compare-col.after{background:var(--c-primary-050);border-color:#D6E3EF;}
.compare-col h3{font-size:18px;display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.dot{width:10px;height:10px;border-radius:50%;background:var(--c-meta);flex:0 0 auto;}
.compare-col.after .dot{background:var(--c-primary);}
.compare-list li{position:relative;padding-left:20px;margin-bottom:12px;font-size:15px;color:var(--c-muted);}
.compare-list li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--c-meta);opacity:.55;}
.compare-col.after .compare-list li{color:var(--c-primary-700);}
.compare-col.after .compare-list li::before{background:var(--c-positive);opacity:1;}
.compare-note{margin-top:20px;padding-top:16px;border-top:1px dashed rgba(30,78,121,.2);font-size:14px;color:var(--c-primary-700);font-weight:600;}

/* ===== 指标条 ===== */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.metric{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:24px 22px 22px;position:relative;overflow:hidden;transition:transform .25s ease,box-shadow .25s ease;}
.metric:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.metric::before{content:"";position:absolute;left:0;top:0;right:0;height:3px;background:var(--c-primary);}
.metric:nth-child(2n)::before{background:var(--c-accent);}
.metric .num{font-size:38px;font-weight:700;line-height:1;color:var(--c-primary);font-variant-numeric:tabular-nums;letter-spacing:-.01em;}
.metric .num span{font-size:15px;font-weight:600;color:var(--c-muted);margin-left:4px;}
.metric .desc{font-size:14px;color:var(--c-muted);margin-top:12px;line-height:1.7;}

/* ===== FAQ ===== */
.faq-accordion .accordion-item{border:1px solid var(--c-line);border-radius:12px;background:#fff;margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);}
.faq-accordion .accordion-button{font-size:17px;font-weight:600;color:var(--c-text);background:#fff;padding:20px 52px 20px 22px;box-shadow:none;position:relative;line-height:1.5;}
.faq-accordion .accordion-button:not(.collapsed){color:var(--c-primary);background:var(--c-primary-050);border-left:3px solid var(--c-primary);}
.faq-accordion .accordion-button::after{content:"+";background-image:none;font-size:22px;font-weight:400;line-height:1;color:var(--c-primary);position:absolute;right:22px;top:50%;transform:translateY(-50%);width:auto;height:auto;display:flex;align-items:center;justify-content:center;transition:transform .2s ease;}
.faq-accordion .accordion-button:not(.collapsed)::after{content:"−";transform:translateY(-50%) rotate(0deg);}
.faq-accordion .accordion-button:focus{box-shadow:0 0 0 3px var(--c-primary-050);z-index:2;}
.faq-accordion .accordion-body{font-size:15px;color:var(--c-muted);line-height:1.85;padding:4px 22px 22px;background:#fff;}
.faq-accordion .accordion-button:not(.collapsed) + .accordion-collapse .accordion-body{background:var(--c-primary-050);}

/* ===== CTA 条 ===== */
.cta-band{background:var(--c-primary-700);color:#fff;border-radius:16px;padding:48px 44px;}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:12px;}
.cta-band p{color:#C9D6E3;font-size:15.5px;max-width:720px;margin-bottom:26px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.cta-hint{font-size:14px;color:#C9D6E3;}

/* ===== 页脚 ===== */
.site-footer{background:var(--c-primary-700);color:#C9D6E3;padding:72px 0 26px;margin-top:0;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);}
.footer-desc{font-size:14px;line-height:1.9;color:#C9D6E3;margin-bottom:20px;max-width:340px;}
.footer-social{display:flex;gap:12px;}
.footer-social a{width:38px;height:38px;border-radius:10px;background:rgba(255,255,255,.1);display:inline-flex;align-items:center;justify-content:center;transition:background-color .2s ease,transform .2s ease;}
.footer-social a:hover{background:rgba(255,255,255,.22);transform:translateY(-2px);text-decoration:none;}
.footer-social svg{width:18px;height:18px;stroke:#fff;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.site-footer h3{font-size:16px;color:#fff;margin-bottom:18px;font-weight:600;}
.footer-links li{margin-bottom:11px;}
.footer-links a{font-size:14px;color:#C9D6E3;text-decoration:none;display:inline-block;transition:color .2s ease,transform .2s ease;}
.footer-links a:hover{color:#fff;transform:translateX(2px);text-decoration:none;}
.footer-contact li{font-size:14px;line-height:1.9;margin-bottom:11px;color:#C9D6E3;}
.footer-contact strong{color:#fff;font-weight:600;}
.footer-bottom{margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#A9BACE;}

/* ===== 响应式 ===== */
@media (max-width:1199.98px){
  .nav-search input{width:160px;}
}
@media (max-width:991.98px){
  :root{--section-y:72px;}
  .nav-main,.nav-search{display:none;}
  .nav-toggle{display:flex;}
  .header-actions{gap:10px;}
  .page-hero h1{font-size:34px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .compare-wrap{grid-template-columns:1fr;}
  .cta-band{padding:38px 28px;}
}
@media (max-width:767.98px){
  :root{--section-y:60px;}
  .header-inner{height:60px;}
  .page-hero{padding:44px 0 60px;}
  .page-hero h1{font-size:28px;}
  .page-hero .lead{font-size:16px;}
  .section-head h2,.cta-band h2{font-size:23px;}
  .card-grid{grid-template-columns:1fr;}
  .row-media{margin-bottom:44px;}
  .step-item{gap:14px;padding:22px 0;}
  .step-num{width:40px;font-size:19px;}
  .btn-nav{display:none;}
}
@media (max-width:520px){
  .metrics{grid-template-columns:1fr;}
  .hero-actions .btn{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category2 */
:root{
  --c-primary:#1E4E79;
  --c-primary-700:#153A5C;
  --c-primary-050:#EDF3F9;
  --c-accent:#C08A4E;
  --c-accent-050:#FBF4EA;
  --c-positive:#2E7D6B;
  --c-bg:#F6F7F9;
  --c-surface:#FFFFFF;
  --c-line:#E8ECF1;
  --c-text:#1D2733;
  --c-muted:#5C6A7A;
  --c-meta:#7A8794;
  --r-card:14px;
  --r-ctl:10px;
  --sh-1:0 1px 2px rgba(20,40,70,.04), 0 4px 14px rgba(20,40,70,.06);
  --sh-2:0 8px 26px rgba(20,40,70,.10);
  --sec-y:96px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--c-text);
  background:var(--c-bg);
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;}
a:hover{color:var(--c-primary-700);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700;}
p{margin:0 0 1em;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;}
.section{padding:var(--sec-y) 0;}
.section-alt{background:#FFFFFF;}
.section-plain{background:var(--c-bg);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  box-shadow:0 1px 3px rgba(20,40,70,.05);
}
.header-inner{display:flex;align-items:center;gap:28px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--c-primary-700);letter-spacing:.01em;flex:none;}
.brand:hover{text-decoration:none;color:var(--c-primary);}
.brand-mark{width:32px;height:32px;border-radius:9px;background:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;flex:none;}
.brand-mark svg{width:18px;height:18px;stroke:#fff;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}

.nav-main{display:flex;align-items:center;gap:28px;margin-left:6px;}
.nav-link{font-size:15px;color:var(--c-text);padding:6px 0;position:relative;white-space:nowrap;}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;}
.nav-link:hover{color:var(--c-primary);text-decoration:none;}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--c-primary);font-weight:700;}
.nav-link.active::after{transform:scaleX(1);}

.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.search-box{position:relative;}
.search-box input{
  height:40px;width:206px;border-radius:20px;border:1px solid var(--c-line);
  background:#F2F4F7;padding:0 16px 0 38px;font-size:14px;transition:all .22s ease;
}
.search-box input::placeholder{color:var(--c-meta);}
.search-box input:focus{background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 2px rgba(30,78,121,.12);outline:none;}
.search-box svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:16px;height:16px;stroke:var(--c-meta);fill:none;stroke-width:2;pointer-events:none;}

.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-ctl);
  background:var(--c-primary);color:#fff;font-size:15px;font-weight:600;
  border:1px solid var(--c-primary);cursor:pointer;
  transition:all .25s ease;
}
.btn-main:hover{background:var(--c-primary-700);border-color:var(--c-primary-700);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:0 8px 18px rgba(30,78,121,.22);}
.btn-main:active{transform:translateY(0);}
.btn-sm-main{height:40px;padding:0 18px;font-size:14px;}

.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-ctl);
  background:transparent;color:var(--c-primary);font-size:15px;font-weight:600;
  border:1px solid var(--c-primary);cursor:pointer;transition:all .25s ease;
}
.btn-ghost:hover{background:var(--c-primary-050);color:var(--c-primary-700);text-decoration:none;transform:translateY(-1px);}

.link-arrow{font-size:14.5px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;}
.link-arrow::after{content:"→";transition:transform .22s ease;}
.link-arrow:hover{text-decoration:underline;text-underline-offset:3px;}
.link-arrow:hover::after{transform:translateX(3px);}

.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--c-line);background:#fff;align-items:center;justify-content:center;cursor:pointer;}
.nav-toggle svg{width:20px;height:20px;stroke:var(--c-primary);fill:none;stroke-width:2;stroke-linecap:round;}
.nav-toggle:hover{background:var(--c-primary-050);}

.drawer-mask{position:fixed;inset:0;background:rgba(20,40,70,.35);opacity:0;visibility:hidden;transition:all .3s ease;z-index:1040;}
.drawer-mask.open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(330px,86vw);
  background:#fff;transform:translateX(100%);transition:transform .3s ease;
  z-index:1050;padding:26px 24px;overflow-y:auto;display:flex;flex-direction:column;
  box-shadow:-10px 0 30px rgba(20,40,70,.12);
}
.mobile-drawer.open{transform:translateX(0);}
.mobile-drawer .drawer-title{font-size:13px;letter-spacing:.08em;color:var(--c-meta);margin-bottom:8px;}
.mobile-drawer .nav-link{font-size:16px;padding:13px 0;border-bottom:1px solid var(--c-line);}
.mobile-drawer .nav-link::after{display:none;}
.mobile-drawer .nav-link.active{font-weight:700;}
.mobile-drawer .search-box{margin-top:20px;}
.mobile-drawer .search-box input{width:100%;}
.mobile-drawer .btn-main{width:100%;margin-top:14px;}

/* ---------- 页面头部横幅 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center right;
  border-bottom:1px solid var(--c-line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(96deg,rgba(255,255,255,.95) 0%,rgba(255,255,255,.90) 52%,rgba(255,255,255,.74) 100%);
}
.page-hero .container{position:relative;z-index:2;padding-top:62px;padding-bottom:66px;}

.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-meta);margin-bottom:20px;}
.crumb a{color:var(--c-meta);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:#C3CCD6;}

.hero-tag{
  display:inline-block;font-size:13px;font-weight:600;color:var(--c-primary);
  background:var(--c-primary-050);border:1px solid #D8E4F0;border-radius:6px;
  padding:5px 12px;margin-bottom:18px;
}
.page-hero h1{
  font-size:clamp(28px,3.6vw,42px);
  line-height:1.28;letter-spacing:-.01em;
  color:var(--c-text);max-width:20em;margin-bottom:20px;
}
.hero-lead{font-size:16.5px;line-height:1.95;color:var(--c-muted);max-width:760px;margin-bottom:0;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-points{list-style:none;display:flex;flex-wrap:wrap;gap:26px;padding:0;margin:28px 0 0;font-size:14px;color:var(--c-muted);}
.hero-points li{display:flex;align-items:center;gap:9px;}
.hero-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);flex:none;}

/* ---------- 区块标题 ---------- */
.sec-head{max-width:780px;margin-bottom:46px;}
.sec-head.compact{margin-bottom:30px;}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:.08em;font-weight:600;color:var(--c-accent);margin-bottom:12px;}
.sec-title{position:relative;font-size:clamp(22px,2.4vw,29px);padding-left:18px;margin-bottom:14px;color:var(--c-text);}
.sec-title::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:22px;border-radius:2px;background:var(--c-primary);}
.sec-sub{font-size:16px;color:var(--c-muted);line-height:1.9;margin:0;}

/* ---------- 卡片网格（分类页2 主版式） ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:start;}
.pin-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:12px;
  transition:transform .25s ease,box-shadow .25s ease;
}
.pin-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.pin-card.featured{grid-column:span 2;padding:26px 28px;}
.pin-num{font-size:13px;font-weight:700;color:var(--c-accent);letter-spacing:.06em;font-variant-numeric:tabular-nums;}
.pin-card h3{font-size:19px;font-weight:600;color:var(--c-text);}
.pin-card p{font-size:15px;line-height:1.85;color:var(--c-muted);margin:0;}
.pin-card .link-arrow{margin-top:auto;padding-top:6px;}
.featured-cover{position:relative;aspect-ratio:16/9;border-radius:12px;overflow:hidden;margin-bottom:6px;background:var(--c-primary-050);}
.featured-cover img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease;}
.pin-card.featured:hover .featured-cover img{transform:scale(1.03);}
.featured-body{display:flex;flex-direction:column;gap:12px;}

/* ---------- 对照表 ---------- */
.spec-table{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);}
.spec-head{display:grid;grid-template-columns:1.1fr 1fr 1.4fr 1.1fr;background:var(--c-primary-050);border-bottom:1px solid var(--c-line);}
.spec-head span{padding:14px 18px;font-size:13.5px;font-weight:600;color:var(--c-primary-700);}
.spec-row{display:grid;grid-template-columns:1.1fr 1fr 1.4fr 1.1fr;border-bottom:1px solid var(--c-line);transition:background .2s ease;}
.spec-row:last-child{border-bottom:0;}
.spec-row:hover{background:#FAFBFD;}
.spec-row > div{padding:16px 18px;font-size:14.5px;color:var(--c-muted);line-height:1.75;border-right:1px solid var(--c-line);}
.spec-row > div:last-child{border-right:0;}
.spec-row .cell-strong{font-weight:600;color:var(--c-primary-700);}
.spec-row .cell-done{color:var(--c-positive);font-weight:600;}

.side-note{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);height:100%;
}
.side-note h3{font-size:18px;color:var(--c-text);margin-bottom:8px;}
.side-note .note-lead{font-size:14.5px;color:var(--c-muted);margin:0 0 20px;}
.note-list{list-style:none;padding:0;margin:0;}
.note-list li{position:relative;padding-left:24px;margin-bottom:14px;font-size:14.5px;color:var(--c-muted);line-height:1.8;}
.note-list li::before{
  content:"";position:absolute;left:0;top:10px;width:10px;height:10px;border-radius:3px;
  border:1.6px solid var(--c-accent);background:var(--c-accent-050);
}
.note-foot{margin-top:22px;padding-top:20px;border-top:1px dashed var(--c-line);font-size:14px;color:var(--c-meta);}
.note-foot strong{color:var(--c-primary-700);}

/* ---------- 步骤流程 ---------- */
.step-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.step-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);display:flex;gap:20px;align-items:flex-start;
  transition:transform .25s ease,box-shadow .25s ease;
}
.step-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.step-index{
  flex:none;font-size:26px;font-weight:700;color:var(--c-primary);
  font-variant-numeric:tabular-nums;line-height:1;padding-top:4px;letter-spacing:.02em;
}
.step-item h3{font-size:18px;font-weight:600;margin-bottom:8px;}
.step-item p{font-size:14.5px;color:var(--c-muted);margin:0;line-height:1.85;}

/* ---------- 反馈摘录 ---------- */
.quote-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.quote-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-left:3px solid var(--c-accent);
  border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;gap:14px;transition:transform .25s ease,box-shadow .25s ease;
}
.quote-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.quote-card p{font-size:15px;line-height:1.9;color:var(--c-text);margin:0;}
.quote-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-meta);margin-top:auto;}
.quote-meta .dot{width:6px;height:6px;border-radius:50%;background:var(--c-primary-050);box-shadow:0 0 0 3px rgba(30,78,121,.10);}
.quote-tag{font-size:12px;color:var(--c-primary);background:var(--c-primary-050);border-radius:6px;padding:3px 9px;}

/* ---------- FAQ ---------- */
.faq-list{margin:0;}
.faq-list .accordion-item{
  background:#fff;border:1px solid var(--c-line);border-radius:12px;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);
}
.faq-list .accordion-button{
  position:relative;width:100%;text-align:left;background:#fff;border:0;
  font-size:17px;font-weight:600;color:var(--c-text);
  padding:20px 60px 20px 22px;border-radius:12px;box-shadow:none;
  transition:background .2s ease,color .2s ease;
}
.faq-list .accordion-button::after{display:none!important;background-image:none!important;}
.faq-list .accordion-button::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;
  background:var(--c-primary);border-radius:0 3px 3px 0;opacity:0;transition:opacity .2s ease;
}
.faq-list .accordion-button:not(.collapsed){color:var(--c-primary);background:var(--c-primary-050);}
.faq-list .accordion-button:not(.collapsed)::before{opacity:1;}
.faq-list .accordion-button:focus{box-shadow:none;outline:2px solid var(--c-primary);outline-offset:-2px;}
.faq-icon{position:absolute;right:22px;top:50%;transform:translateY(-50%);width:22px;height:22px;border-radius:50%;background:var(--c-primary-050);}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px;}
.faq-icon::before{left:6px;right:6px;top:10px;height:2px;}
.faq-icon::after{top:6px;bottom:6px;left:10px;width:2px;transition:transform .25s ease;}
.faq-list .accordion-button:not(.collapsed) .faq-icon::after{transform:scaleY(0);}
.faq-list .accordion-body{font-size:15px;line-height:1.85;color:var(--c-muted);padding:0 22px 22px;}

/* ---------- CTA 条 ---------- */
.cta-band{background:var(--c-primary);color:#fff;border-radius:0;padding:64px 0;}
.cta-inner{display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;}
.cta-text h2{font-size:clamp(22px,2.3vw,28px);color:#fff;margin-bottom:10px;}
.cta-text p{font-size:15px;color:#CFDEEC;margin:0;max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.btn-light-main{
  display:inline-flex;align-items:center;justify-content:center;
  height:46px;padding:0 26px;border-radius:var(--r-ctl);
  background:#fff;color:var(--c-primary-700);font-size:15px;font-weight:600;
  border:1px solid #fff;transition:all .25s ease;cursor:pointer;
}
.btn-light-main:hover{background:var(--c-primary-050);color:var(--c-primary-700);text-decoration:none;transform:translateY(-1px);box-shadow:0 8px 18px rgba(0,0,0,.18);}
.cta-note{font-size:13px;color:#AFC6DA;margin-top:16px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-primary-700);color:#C9D6E3;padding:64px 0 0;}
.site-footer h3{font-size:16px;color:#fff;font-weight:600;margin-bottom:18px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-brand .brand-mark{width:32px;height:32px;border-radius:9px;background:rgba(255,255,255,.14);}
.footer-desc{font-size:14px;line-height:1.9;color:#C9D6E3;margin:0 0 20px;max-width:340px;}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  width:36px;height:36px;border-radius:10px;background:rgba(255,255,255,.10);
  display:inline-flex;align-items:center;justify-content:center;transition:all .22s ease;
}
.footer-social a svg{width:18px;height:18px;stroke:#C9D6E3;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.footer-social a:hover{background:rgba(255,255,255,.22);transform:translateY(-2px);text-decoration:none;}
.footer-social a:hover svg{stroke:#fff;}
.footer-links,.footer-contact{list-style:none;padding:0;margin:0;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:#C9D6E3;display:inline-block;transition:all .2s ease;}
.footer-links a:hover{color:#fff;text-decoration:none;transform:translateX(2px);}
.footer-contact li{font-size:14px;margin-bottom:10px;line-height:1.75;}
.footer-contact strong{color:#fff;font-weight:600;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;font-size:13px;color:#9FB3C6;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  :root{--sec-y:84px;}
}
@media (max-width:991.98px){
  :root{--sec-y:72px;}
  .nav-main{display:none;}
  .search-box{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{height:60px;gap:16px;}
  .brand{font-size:17px;}
  .header-actions{gap:10px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .pin-card.featured{grid-column:span 2;}
  .quote-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .page-hero .container{padding-top:48px;padding-bottom:52px;}
}
@media (max-width:767.98px){
  :root{--sec-y:58px;}
  .container{padding-left:16px;padding-right:16px;}
  .step-grid{grid-template-columns:minmax(0,1fr);}
  .quote-grid{grid-template-columns:minmax(0,1fr);}
  .sec-head{margin-bottom:32px;}
  .spec-head{display:none;}
  .spec-row{grid-template-columns:1fr 1fr;}
  .spec-row > div{border-right:0;padding:12px 16px;font-size:14px;}
  .spec-row > div:nth-child(1){grid-column:1/-1;background:var(--c-primary-050);font-weight:600;color:var(--c-primary-700);padding-bottom:8px;}
  .spec-row > div:nth-child(4){grid-column:1/-1;border-top:1px dashed var(--c-line);}
  .cta-band{padding:48px 0;}
  .cta-inner{gap:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-light-main{flex:1 1 auto;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:575.98px){
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .pin-card.featured{grid-column:span 1;padding:22px;}
  .pin-card{padding:22px;}
  .step-item{padding:22px;gap:16px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{flex:1 1 100%;}
  .hero-points{gap:14px;}
  .side-note{padding:22px;}
}