/* roulang page: index */
:root{
  --c-primary:#1F6FEB;
  --c-primary-dark:#1553B7;
  --c-primary-soft:#EAF2FF;
  --c-teal:#0FAF9B;
  --c-orange:#FF7A3D;
  --c-bg:#F6F9FC;
  --c-surface:#FFFFFF;
  --c-text:#0B1B2B;
  --c-muted:#5B6B7F;
  --c-border:#E3EAF2;
  --c-footer:#0B1F3A;
  --r-card:18px;
  --r-input:12px;
  --r-pill:999px;
  --sh-card:0 10px 30px rgba(20,55,100,.08);
  --sh-hover:0 16px 44px rgba(20,55,100,.14);
  --sp-section:92px;
  --font-cn:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  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-dark)}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-text);letter-spacing:.2px}
h1{font-size:clamp(32px,5vw,48px);line-height:1.15}
h2{font-size:clamp(26px,3.5vw,36px);line-height:1.25}
h3{font-size:20px;line-height:1.4}
p{margin:0 0 16px}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(31,111,235,.35);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 22px}
.section{padding:var(--sp-section) 0}
.section.tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--c-primary-dark);
  background:var(--c-primary-soft);border-radius:var(--r-pill);
  padding:6px 14px;margin-bottom:16px;
}
.eyebrow i{font-size:12px}
.section-title{margin-bottom:14px}
.section-desc{color:var(--c-muted);font-size:16px;margin:0}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px rgba(31,111,235,.24)}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(31,111,235,.3)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:#BFD6F8}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);border-color:var(--c-primary)}
.btn-warm{background:var(--c-orange);color:#fff;box-shadow:0 8px 20px rgba(255,122,61,.26)}
.btn-warm:hover{background:#ED6A2C;color:#fff;transform:translateY(-1px)}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--c-primary)}
.link-arrow i{font-size:12px;transition:transform .2s ease}
.link-arrow:hover{color:var(--c-primary-dark);text-decoration:underline;text-underline-offset:4px}
.link-arrow:hover i{transform:translateX(3px)}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:0 8px 26px rgba(20,55,100,.09)}
.nav-inner{
  height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(135deg,var(--c-primary),#3E8BFF);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:17px;font-weight:700;color:var(--c-text)}
.brand-sub{font-size:11px;color:var(--c-muted);letter-spacing:.6px}
.nav-menu{display:flex;align-items:center;gap:6px}
.nav-link{
  display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:#33465C;
}
.nav-link:hover{background:var(--c-primary-soft);color:var(--c-primary-dark)}
.nav-link.active{background:var(--c-primary-soft);color:var(--c-primary-dark);font-weight:600}
.nav-right{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-border);
  background:#fff;color:var(--c-text);font-size:18px;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;background:#fff;z-index:80;
  transform:translateY(-100%);transition:transform .3s ease;
  display:flex;flex-direction:column;overflow-y:auto;
}
.drawer.open{transform:translateY(0)}
.drawer-top{
  height:60px;display:flex;align-items:center;justify-content:space-between;
  padding:0 20px;border-bottom:1px solid var(--c-border);flex-shrink:0;
}
.drawer-close{width:42px;height:42px;border-radius:12px;border:1px solid var(--c-border);background:#fff;font-size:18px;cursor:pointer}
.drawer-body{padding:18px 20px 30px}
.drawer-group-title{font-size:12px;color:var(--c-muted);margin:12px 0 8px;letter-spacing:.6px}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:0 16px;border-radius:14px;font-size:16px;font-weight:600;color:var(--c-text);
  border:1px solid var(--c-border);margin-bottom:10px;background:#fff;
}
.drawer-link:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft)}
.drawer-note{font-size:13px;color:var(--c-muted);margin-top:16px;line-height:1.7}

/* ===== Hero ===== */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(circle at 12% 18%,rgba(31,111,235,.10),transparent 42%),
    radial-gradient(circle at 88% 8%,rgba(15,175,155,.10),transparent 40%),
    linear-gradient(180deg,#FBFDFF 0%,var(--c-bg) 100%);
  border-bottom:1px solid var(--c-border);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(31,111,235,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(31,111,235,.05) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 78%);
}
.hero-inner{position:relative;z-index:2;padding:76px 0 84px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-title{margin-bottom:18px}
.hero-title em{font-style:normal;color:var(--c-primary);position:relative}
.hero-sub{font-size:17px;color:var(--c-muted);max-width:560px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;gap:6px;background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-pill);padding:7px 14px;font-size:13px;color:#3C5068;
}
.tag i{color:var(--c-teal);font-size:12px}
.hero-visual{position:relative}
.hero-img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:22px;
  box-shadow:0 22px 50px rgba(20,55,100,.16);border:1px solid #fff;
}
.hero-float{
  position:absolute;left:-18px;bottom:26px;background:#fff;border-radius:16px;
  box-shadow:var(--sh-card);padding:14px 18px;display:flex;align-items:center;gap:12px;
  border:1px solid var(--c-border);
}
.hero-float .num{font-size:22px;font-weight:700;color:var(--c-primary);line-height:1}
.hero-float .txt{font-size:12px;color:var(--c-muted);line-height:1.4}

/* ===== 痛点提问 ===== */
.pain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.pain-card{
  display:flex;align-items:flex-start;gap:14px;background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-card);padding:22px 24px;transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.pain-card:hover{border-color:var(--c-primary);box-shadow:var(--sh-card);transform:translateY(-2px)}
.pain-icon{
  width:42px;height:42px;border-radius:12px;background:var(--c-primary-soft);color:var(--c-primary-dark);
  display:flex;align-items:center;justify-content:center;font-size:17px;flex-shrink:0;
}
.pain-q{font-size:16px;font-weight:600;margin-bottom:6px}
.pain-a{font-size:14px;color:var(--c-muted);line-height:1.7;margin:0}

/* ===== 方案卡片 ===== */
.plan-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch}
.plan-main{
  background:linear-gradient(160deg,#F4F8FF 0%,#FFFFFF 62%);
  border:1px solid #D6E6FF;border-radius:22px;padding:36px;position:relative;overflow:hidden;
  box-shadow:var(--sh-card);
}
.plan-main::after{
  content:"";position:absolute;right:-60px;top:-60px;width:200px;height:200px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,111,235,.16),transparent 70%);
}
.plan-badge{
  display:inline-block;background:var(--c-primary);color:#fff;font-size:12px;font-weight:600;
  border-radius:var(--r-pill);padding:5px 12px;margin-bottom:16px;
}
.plan-main h3{font-size:24px;margin-bottom:12px}
.plan-main p{color:var(--c-muted);font-size:15px;max-width:520px}
.plan-points{margin:18px 0 24px;display:grid;gap:10px}
.plan-points li{display:flex;gap:10px;font-size:15px;color:#2C3E52;align-items:flex-start}
.plan-points i{color:var(--c-teal);margin-top:6px;font-size:13px}
.plan-side{display:grid;gap:24px}
.plan-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);padding:26px;
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.plan-card:hover{box-shadow:var(--sh-hover);transform:translateY(-3px);border-color:#CFE1FB}
.plan-card .picon{
  width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:rgba(15,175,155,.12);color:var(--c-teal);font-size:19px;margin-bottom:14px;
}
.plan-card.orange .picon{background:rgba(255,122,61,.12);color:var(--c-orange)}
.plan-card h3{font-size:19px;margin-bottom:8px}
.plan-card p{font-size:14.5px;color:var(--c-muted);margin:0 0 14px}

/* ===== 数据区 ===== */
.stats-band{background:linear-gradient(180deg,#fff 0%,#F3F8FF 100%);border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-item{padding:6px 4px}
.stat-icon{font-size:18px;color:var(--c-primary);margin-bottom:12px}
.stat-num{font-size:clamp(30px,3.4vw,40px);font-weight:700;line-height:1;color:var(--c-primary);margin-bottom:10px}
.stat-item.teal .stat-num{color:var(--c-teal)}
.stat-item.teal .stat-icon{color:var(--c-teal)}
.stat-item.warm .stat-num{color:var(--c-orange)}
.stat-item.warm .stat-icon{color:var(--c-orange)}
.stat-label{font-size:14px;color:var(--c-muted);margin:0}
.trust-line{
  margin-top:36px;padding-top:24px;border-top:1px dashed var(--c-border);
  display:flex;flex-wrap:wrap;gap:10px 26px;align-items:center;
  font-size:14px;color:var(--c-muted);
}
.trust-line span{display:inline-flex;align-items:center;gap:8px}
.trust-line i{color:var(--c-teal)}

/* ===== 资讯列表 ===== */
.news-grid{display:grid;grid-template-columns:1.55fr .95fr;gap:28px;align-items:start}
.news-list{display:grid;gap:22px}
.news-card{
  display:grid;grid-template-columns:250px 1fr;gap:0;background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-card);overflow:hidden;transition:box-shadow .25s ease,transform .25s ease;
}
.news-card:hover{box-shadow:var(--sh-hover);transform:translateY(-3px)}
.news-cover{position:relative;overflow:hidden;background:#EDF3FA}
.news-cover img{width:100%;height:100%;min-height:172px;object-fit:cover;transition:transform .5s ease}
.news-card:hover .news-cover img{transform:scale(1.06)}
.news-body{padding:22px 24px;display:flex;flex-direction:column;justify-content:center}
.badge{
  display:inline-flex;align-items:center;gap:6px;align-self:flex-start;
  background:var(--c-primary-soft);color:var(--c-primary-dark);
  font-size:12px;font-weight:600;border-radius:var(--r-pill);padding:4px 12px;margin-bottom:12px;
}
.news-title{font-size:18px;line-height:1.5;margin-bottom:10px;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)}
.news-excerpt{
  font-size:14.5px;color:var(--c-muted);margin:0 0 14px;
  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-muted)}
.news-meta time{display:inline-flex;align-items:center;gap:6px}
.side-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);padding:24px;
  box-shadow:var(--sh-card);position:sticky;top:96px;
}
.side-card h3{font-size:17px;margin-bottom:8px}
.side-card > p{font-size:14px;color:var(--c-muted)}
.side-list{margin-top:14px;border-top:1px solid var(--c-border)}
.side-list li{padding:14px 0;border-bottom:1px solid var(--c-border)}
.side-list li:last-child{border-bottom:0;padding-bottom:0}
.side-list .s-title{font-size:15px;font-weight:600;color:var(--c-text);line-height:1.6;display:block}
.side-list .s-title:hover{color:var(--c-primary)}
.side-list .s-time{font-size:12px;color:var(--c-muted);margin-top:4px;display:block}
.empty-state{
  background:#fff;border:1px dashed #C9DDF7;border-radius:var(--r-card);
  padding:52px 28px;text-align:center;
}
.empty-state .eicon{
  width:58px;height:58px;border-radius:50%;background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:22px;margin:0 auto 16px;
}
.empty-state h3{font-size:18px;margin-bottom:8px}
.empty-state p{color:var(--c-muted);font-size:14.5px;margin-bottom:18px}

/* ===== 专题导流 ===== */
.topic-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.topic-card{
  background:#fff;border:1px solid var(--c-border);border-radius:22px;overflow:hidden;
  transition:box-shadow .25s ease,transform .25s ease;display:flex;flex-direction:column;
}
.topic-card:hover{box-shadow:var(--sh-hover);transform:translateY(-4px)}
.topic-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.topic-body{padding:26px}
.topic-body h3{font-size:20px;margin-bottom:10px}
.topic-body p{font-size:14.5px;color:var(--c-muted);margin-bottom:16px}

/* ===== FAQ ===== */
.faq-wrap{max-width:900px;margin:0 auto}
.accordion{border:0;background:transparent}
.accordion .accordion-item{
  background:#fff;border:1px solid var(--c-border);border-radius:16px;margin-bottom:14px;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.accordion .accordion-item:hover{border-color:#CFE1FB;box-shadow:var(--sh-card)}
.accordion .accordion-item.is-active{border-color:#BFD6F8;box-shadow:var(--sh-card)}
.accordion .accordion-title{
  border:0;background:transparent;padding:20px 54px 20px 24px;font-size:16px;font-weight:600;color:var(--c-text);
  position:relative;display:block;
}
.accordion .accordion-title:hover{background:var(--c-primary-soft);color:var(--c-primary-dark)}
.accordion .accordion-title::before{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:13px;color:var(--c-primary);transition:transform .25s ease;
}
.accordion .accordion-item.is-active .accordion-title::before{content:"\f068"}
.accordion .accordion-content{padding:0 24px 22px;border:0;background:transparent;color:var(--c-muted);font-size:15px;line-height:1.85}
.accordion .accordion-content p:last-child{margin-bottom:0}

/* ===== CTA 区 ===== */
.cta-band{
  background:linear-gradient(135deg,#0F4FB5 0%,#1F6FEB 55%,#2E86F5 100%);
  border-radius:26px;padding:56px;color:#fff;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;bottom:-100px;width:300px;height:300px;border-radius:50%;
  background:rgba(255,255,255,.10);
}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.25fr .75fr;gap:36px;align-items:center}
.cta-band h2{color:#fff;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.86);margin:0 0 22px;font-size:15.5px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}
.cta-band .btn-warm{box-shadow:0 10px 26px rgba(0,0,0,.18)}
.cta-side{
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);
  border-radius:18px;padding:24px;
}
.cta-side h3{color:#fff;font-size:17px;margin-bottom:14px}
.cta-side li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.92);margin-bottom:12px;align-items:flex-start}
.cta-side li:last-child{margin-bottom:0}
.cta-side i{color:#8FD8CD;margin-top:6px;font-size:13px}

/* 隐私说明 */
.privacy-note{
  background:#fff;border:1px solid var(--c-border);border-left:4px solid var(--c-teal);
  border-radius:14px;padding:22px 26px;display:flex;gap:16px;align-items:flex-start;
}
.privacy-note i{color:var(--c-teal);font-size:20px;margin-top:4px}
.privacy-note h3{font-size:16px;margin-bottom:6px}
.privacy-note p{font-size:14px;color:var(--c-muted);margin:0}

/* ===== 页脚 ===== */
.site-footer{background:var(--c-footer);color:rgba(255,255,255,.72);padding:70px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px;padding-bottom:48px}
.footer-brand .brand-mark{background:linear-gradient(135deg,#2E86F5,#0FAF9B)}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:rgba(255,255,255,.5)}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.62);margin:18px 0 0;line-height:1.8}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;font-weight:600}
.footer-col li{margin-bottom:12px}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px}
.footer-col a:hover{color:#6FB1FF}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.72);margin-bottom:14px;align-items:flex-start}
.footer-contact i{color:#6FB1FF;margin-top:6px;font-size:13px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.7)}
.footer-bottom a:hover{color:#6FB1FF}

/* ===== 表单弹层 ===== */
.modal-mask{
  position:fixed;inset:0;background:rgba(11,27,43,.45);z-index:120;
  display:none;align-items:center;justify-content:center;padding:24px;
}
.modal-mask.open{display:flex}
.modal-card{
  width:100%;max-width:520px;background:#fff;border-radius:20px;padding:32px;
  box-shadow:0 30px 70px rgba(11,27,43,.28);max-height:90vh;overflow-y:auto;
  animation:pop .26s ease;
}
@keyframes pop{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
.modal-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:8px}
.modal-head h3{font-size:21px}
.modal-close{width:38px;height:38px;border-radius:12px;border:1px solid var(--c-border);background:#fff;cursor:pointer;color:var(--c-muted);flex-shrink:0}
.modal-close:hover{border-color:var(--c-primary);color:var(--c-primary)}
.modal-desc{font-size:14px;color:var(--c-muted);margin-bottom:22px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:#2C3E52}
.field label span{color:var(--c-orange)}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--c-border);border-radius:var(--r-input);
  padding:12px 14px;font-size:15px;font-family:inherit;color:var(--c-text);background:#FBFDFF;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:96px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(31,111,235,.14);
}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--c-muted);margin-bottom:20px}
.check-row input{margin-top:5px;width:16px;height:16px;flex-shrink:0}
.form-tip{font-size:12.5px;color:var(--c-muted);margin:14px 0 0;text-align:center}
.form-msg{display:none;border-radius:12px;padding:12px 16px;font-size:14px;margin-bottom:16px}
.form-msg.ok{display:block;background:rgba(15,175,155,.12);color:#0B7C6E;border:1px solid rgba(15,175,155,.3)}
.form-msg.err{display:block;background:rgba(255,122,61,.12);color:#C24E17;border:1px solid rgba(255,122,61,.32)}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  :root{--sp-section:84px}
  .hero-grid{gap:40px}
  .news-card{grid-template-columns:212px 1fr}
}
@media (max-width:1023px){
  .nav-menu,.nav-right .btn{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .hero-inner{padding:60px 0 68px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-float{left:14px;bottom:14px}
  .plan-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:30px}
  .news-grid{grid-template-columns:1fr}
  .side-card{position:static}
  .cta-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .hero-sub{max-width:none}
}
@media (max-width:639px){
  :root{--sp-section:52px}
  .wrap{padding:0 16px}
  .nav-inner{height:60px}
  .brand-name{font-size:15px}
  .brand-sub{display:none}
  .brand-mark{width:34px;height:34px;font-size:13px}
  .hero-inner{padding:44px 0 54px}
  .hero-img{aspect-ratio:4/3;border-radius:18px}
  .hero-float{padding:10px 14px}
  .hero-float .num{font-size:18px}
  .hero-actions .btn{width:100%}
  .pain-grid{grid-template-columns:1fr;gap:14px}
  .section.tight{padding:46px 0}
  .plan-main{padding:26px}
  .news-card{grid-template-columns:1fr}
  .news-cover img{min-height:0;aspect-ratio:4/3}
  .topic-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr;gap:22px}
  .stat-num{font-size:26px}
  .cta-band{padding:30px 22px;border-radius:20px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:34px}
  .site-footer{padding-top:52px}
  .modal-mask{padding:0;align-items:flex-end}
  .modal-card{max-width:100%;border-radius:20px 20px 0 0;padding:26px 20px;max-height:92vh}
  .privacy-note{flex-direction:column;gap:10px;padding:20px}
  .section-head{margin-bottom:28px}
}

/* roulang page: article */
:root{
  --c-primary:#1F6FEB;
  --c-primary-dark:#1553B7;
  --c-primary-soft:#EAF2FF;
  --c-teal:#0FAF9B;
  --c-teal-soft:#E4F7F4;
  --c-accent:#FF7A3D;
  --c-accent-soft:#FFF1E9;
  --c-bg:#F6F9FC;
  --c-surface:#FFFFFF;
  --c-text:#0B1B2B;
  --c-muted:#5B6B7F;
  --c-border:#E3EAF2;
  --c-footer:#0B1F3A;
  --r-card:18px;
  --r-input:12px;
  --r-pill:999px;
  --sh-card:0 10px 30px rgba(20,55,100,.08);
  --sh-card-hover:0 16px 44px rgba(20,55,100,.14);
  --wrap:1200px;
  --read:800px;
  --sp-sec:92px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--c-bg);
  color:var(--c-text);
  font-size:16px;
  line-height:1.8;
  -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-dark)}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-text);letter-spacing:.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(31,111,235,.35);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(20,55,100,.09)}
.nav-inner{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:12px;color:var(--c-text)}
.brand:hover{color:var(--c-text)}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--c-primary),#3E8BFF);
  color:#fff;font-size:15px;font-weight:700;letter-spacing:.5px;
  box-shadow:0 8px 18px rgba(31,111,235,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:17px;font-weight:700;white-space:nowrap}
.brand-sub{font-size:12px;color:var(--c-muted);font-weight:400;letter-spacing:.2px}
.nav-menu{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  position:relative;padding:9px 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:#2A3B4F;
}
.nav-link:hover{background:var(--c-primary-soft);color:var(--c-primary-dark)}
.nav-link.active{background:var(--c-primary-soft);color:var(--c-primary-dark)}
.nav-right{display:flex;align-items:center;gap:10px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .18s ease,background .2s ease,box-shadow .2s ease,color .2s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px rgba(31,111,235,.24)}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(31,111,235,.3)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:#C9DDFB}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-dark)}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-border);
  background:#fff;color:var(--c-text);font-size:17px;cursor:pointer;
}
.nav-toggle:hover{border-color:#C9DDFB;color:var(--c-primary)}

/* ---------- 面包屑与文章头部 ---------- */
.article-hero{
  background:
    radial-gradient(1000px 380px at 80% -10%, #E5F0FF 0%, rgba(246,249,252,0) 70%),
    linear-gradient(180deg,#FBFDFF 0%, var(--c-bg) 100%);
  border-bottom:1px solid var(--c-border);
  padding:38px 0 56px;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);margin-bottom:22px}
.breadcrumb a{color:var(--c-muted)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#B7C4D4}
.breadcrumb .current{color:var(--c-primary-dark);font-weight:500}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid #D5E5FB;color:var(--c-primary-dark);
  font-size:12px;font-weight:600;letter-spacing:.3px;
}
.article-title{
  margin:18px 0 0;font-size:clamp(28px,4.2vw,42px);line-height:1.28;font-weight:700;
  max-width:960px;
}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:22px;font-size:13.5px;color:var(--c-muted)}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--c-primary);font-size:13px}

/* ---------- 布局 ---------- */
.page-body{padding:64px 0 0}
.layout{display:grid;grid-template-columns:minmax(0,1fr);gap:34px}
@media(min-width:1024px){
  .layout{grid-template-columns:minmax(0,var(--read)) 320px;align-items:start;gap:44px}
}
.reader{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--sh-card);padding:34px 32px 40px;
}
@media(max-width:639px){.reader{padding:24px 20px 30px;border-radius:16px}}

/* ---------- 正文排版 ---------- */
.entry{font-size:16px;line-height:1.9;color:#16283C}
.entry>*+*{margin-top:18px}
.entry h2{
  font-size:clamp(21px,2.4vw,26px);line-height:1.4;margin-top:42px;padding-left:14px;
  border-left:4px solid var(--c-primary);color:var(--c-text);
}
.entry h3{font-size:19px;line-height:1.5;margin-top:30px;color:var(--c-primary-dark)}
.entry p{color:#243549}
.entry strong{color:var(--c-text);font-weight:700}
.entry ul,.entry ol{padding-left:4px}
.entry ul li,.entry ol li{position:relative;padding-left:22px;margin-top:10px;color:#243549}
.entry ul li::before{
  content:"";position:absolute;left:2px;top:13px;width:7px;height:7px;border-radius:50%;
  background:var(--c-teal);
}
.entry ol{counter-reset:step}
.entry ol li{counter-increment:step;padding-left:34px}
.entry ol li::before{
  content:counter(step);position:absolute;left:0;top:5px;width:22px;height:22px;border-radius:50%;
  background:var(--c-primary-soft);color:var(--c-primary-dark);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.entry blockquote{
  margin:26px 0;padding:16px 22px;background:#F8FBFF;
  border-left:4px solid var(--c-primary);border-radius:0 14px 14px 0;
  color:#284162;font-size:15.5px;
}
.entry img{border-radius:14px;margin:26px 0;box-shadow:var(--sh-card);width:100%;height:auto}
.entry a{font-weight:500;border-bottom:1px solid rgba(31,111,235,.35)}
.entry a:hover{color:var(--c-primary-dark);border-bottom-color:var(--c-primary-dark)}
.entry table{width:100%;border-collapse:collapse;margin:26px 0;font-size:14.5px;border:1px solid var(--c-border);border-radius:12px;overflow:hidden}
.entry thead th{background:var(--c-primary-soft);color:var(--c-primary-dark);font-weight:600;text-align:left}
.entry th,.entry td{padding:12px 14px;border-bottom:1px solid var(--c-border)}
.entry tbody tr:nth-child(even){background:#FAFCFF}
.entry tbody tr:last-child td{border-bottom:0}
.entry hr{border:0;border-top:1px dashed var(--c-border);margin:34px 0}

/* ---------- 侧栏 ---------- */
.side{display:flex;flex-direction:column;gap:22px}
@media(min-width:1024px){.side{position:sticky;top:96px}}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--sh-card);padding:22px 22px 24px;
}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:9px}
.side-card h3 i{color:var(--c-primary)}
.side-list li+li{margin-top:10px}
.side-list a{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:#2A3B4F;line-height:1.6}
.side-list a:hover{color:var(--c-primary-dark)}
.side-list i{color:var(--c-teal);margin-top:6px;font-size:12px}
.side-note{font-size:13.5px;color:var(--c-muted);line-height:1.75}
.side-cta{background:linear-gradient(160deg,#EAF2FF 0%,#F6FAFF 100%);border-color:#D5E5FB}
.side-cta h3{color:var(--c-primary-dark)}
.side-cta .btn{margin-top:14px;width:100%}

/* ---------- 标签与返回 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:36px;padding-top:26px;border-top:1px solid var(--c-border)}
.tag{
  display:inline-flex;align-items:center;padding:5px 14px;border-radius:var(--r-pill);
  background:var(--c-primary-soft);color:var(--c-primary-dark);font-size:12.5px;font-weight:500;
}
.tag:hover{background:#DCEAFF;color:var(--c-primary-dark)}
.tag-teal{background:var(--c-teal-soft);color:#0B7D70}
.tag-orange{background:var(--c-accent-soft);color:#C4531E}
.back-link{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sp-sec) 0}
.section-tight{padding:64px 0}
.section-head{max-width:720px;margin-bottom:40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;
  letter-spacing:1.2px;color:var(--c-primary);text-transform:uppercase;
}
.section-head h2{font-size:clamp(24px,3.2vw,34px);line-height:1.3;margin-top:12px}
.section-head p{margin-top:14px;color:var(--c-muted);font-size:15.5px}

/* ---------- 相关推荐 ---------- */
.reco-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:640px){.reco-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.reco-grid{grid-template-columns:repeat(3,1fr)}}
.reco-card{
  display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.reco-card:hover{transform:translateY(-3px);box-shadow:var(--sh-card-hover);border-color:#CFE2FC}
.reco-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EAF2FF}
.reco-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.reco-card:hover .reco-thumb img{transform:scale(1.05)}
.reco-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.reco-body h3{font-size:17px;line-height:1.5}
.reco-body h3 a{color:var(--c-text)}
.reco-body h3 a:hover{color:var(--c-primary-dark)}
.reco-body p{font-size:14.5px;color:var(--c-muted);line-height:1.75}
.reco-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-muted)}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:16px;
  box-shadow:var(--sh-card);overflow:hidden;transition:border-color .2s ease;
}
.faq-item[open]{border-color:#CFE2FC}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px;display:flex;align-items:center;gap:14px;
  font-size:16px;font-weight:600;color:var(--c-text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";margin-left:auto;font-size:22px;font-weight:400;color:var(--c-primary);
  line-height:1;transition:transform .22s ease;
}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg)}
.faq-item .faq-body{padding:0 24px 22px;color:#3B4C61;font-size:15px;line-height:1.85}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(135deg,#0B1F3A 0%,#123A6E 58%,#1553B7 100%);
  border-radius:24px;padding:48px 44px;color:#fff;
  display:grid;gap:28px;grid-template-columns:1fr;align-items:center;
  box-shadow:0 24px 60px rgba(11,31,58,.28);
}
@media(min-width:1024px){.cta-band{grid-template-columns:1.5fr 1fr;padding:56px 56px}}
.cta-band h2{color:#fff;font-size:clamp(23px,3vw,32px);line-height:1.34}
.cta-band p{color:#C6D8F2;margin-top:14px;font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-actions .btn-primary{background:#fff;color:var(--c-primary-dark);box-shadow:none}
.cta-actions .btn-primary:hover{background:#EDF4FF;color:var(--c-primary-dark)}
.cta-actions .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}

/* ---------- 空态 ---------- */
.empty-state{
  text-align:center;padding:56px 24px;border:1px dashed #C9DDFB;border-radius:var(--r-card);
  background:#F9FCFF;
}
.empty-state i{font-size:34px;color:var(--c-primary);margin-bottom:16px;display:block}
.empty-state h2{font-size:22px}
.empty-state p{margin:12px auto 22px;max-width:460px;color:var(--c-muted);font-size:15px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-footer);color:#B9CBE4;margin-top:var(--sp-sec);padding:64px 0 26px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:44px}}
.site-footer .brand-name{color:#fff}
.site-footer .brand-sub{color:#8FA8C8}
.site-footer .brand:hover{color:#fff}
.footer-brand p{margin-top:18px;font-size:14.5px;line-height:1.85;color:#94AAC8;max-width:380px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.footer-col li+li{margin-top:11px}
.footer-col a{color:#B9CBE4;font-size:14.5px}
.footer-col a:hover{color:#7FB0FF}
.footer-contact{display:flex;flex-direction:column;gap:14px}
.footer-contact li{display:flex;gap:10px;font-size:14.5px;line-height:1.7;color:#9FB4D1}
.footer-contact i{color:#5AA0FF;margin-top:6px;font-size:13px}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13.5px;color:#8AA1C0;
}

/* ---------- 移动端 ---------- */
@media(max-width:1023px){
  .nav-menu{
    position:fixed;inset:60px 0 0 0;background:#fff;flex-direction:column;align-items:stretch;
    gap:4px;padding:22px 20px 40px;margin:0;overflow-y:auto;
    transform:translateY(-8px);opacity:0;visibility:hidden;transition:opacity .22s ease,transform .22s ease;
    border-top:1px solid var(--c-border);
  }
  .nav-menu.is-open{transform:translateY(0);opacity:1;visibility:visible}
  .nav-link{padding:14px 16px;border-radius:14px;font-size:16px}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-inner{height:60px;gap:14px}
  .nav-right{margin-left:auto}
  .nav-right .btn-sm{display:none}
  .brand-sub{display:none}
  .brand-name{font-size:15.5px}
  .brand-mark{width:36px;height:36px;flex:0 0 36px;border-radius:11px;font-size:13px}
}
@media(max-width:639px){
  :root{--sp-sec:52px}
  .wrap{padding:0 18px}
  .page-body{padding:38px 0 0}
  .article-hero{padding:26px 0 40px}
  .cta-band{padding:32px 22px;border-radius:20px}
  .cta-actions .btn{width:100%}
  .faq-item summary{padding:16px 18px;font-size:15.5px}
  .faq-item .faq-body{padding:0 18px 18px}
  .site-footer{padding:48px 0 22px}
  .section-tight{padding:44px 0}
}

/* roulang page: category2 */
:root{
  --primary:#1F6FEB;
  --primary-dark:#1553B7;
  --primary-soft:#EAF2FF;
  --teal:#0FAF9B;
  --orange:#FF7A3D;
  --bg:#F6F9FC;
  --surface:#FFFFFF;
  --text:#0B1B2B;
  --muted:#5B6B7F;
  --line:#E3EAF2;
  --footer:#0B1F3A;
  --radius:18px;
  --radius-lg:24px;
  --shadow:0 10px 30px rgba(20,55,100,.08);
  --shadow-hover:0 16px 44px rgba(20,55,100,.14);
  --space:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block;height:auto}
a{color:var(--primary);text-decoration:none;transition:color .2s}
a:hover{color:var(--primary-dark);text-decoration:underline;text-underline-offset:4px}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;color:var(--text)}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
:focus-visible{outline:3px solid rgba(31,111,235,.4);outline-offset:2px;border-radius:8px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--space) 0}
.section-tight{padding:56px 0}
.section-head{max-width:720px;margin-bottom:40px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-label{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--primary-dark);background:var(--primary-soft);border-radius:999px;padding:6px 14px;margin-bottom:16px}
.section-head h2{font-size:clamp(26px,3.5vw,36px);margin-bottom:14px}
.section-head p{color:var(--muted);font-size:16px}

/* 导航 */
.site-header{position:sticky;top:0;z-index:90;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(20,55,100,.1)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);text-decoration:none}
.brand:hover{color:var(--text);text-decoration:none}
.brand-mark{width:44px;height:44px;flex:0 0 44px;border-radius:14px;background:linear-gradient(135deg,#1F6FEB,#1553B7);color:#fff;font-size:15px;font-weight:700;display:flex;align-items:center;justify-content:center;letter-spacing:.5px}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-name{font-size:16px;font-weight:700}
.brand-sub{font-size:12px;color:var(--muted)}
.nav-menu{display:flex;align-items:center;gap:6px}
.nav-link{position:relative;display:inline-flex;align-items:center;padding:10px 14px;border-radius:999px;font-size:15px;font-weight:500;color:#33455a;text-decoration:none;transition:background .2s,color .2s}
.nav-link:hover{background:var(--primary-soft);color:var(--primary-dark);text-decoration:none}
.nav-link.active{background:var(--primary-soft);color:var(--primary-dark);font-weight:600}
.nav-right{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);align-items:center;justify-content:center;font-size:18px;color:var(--text);background:#fff}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 24px;border-radius:999px;font-size:15px;font-weight:600;border:1px solid transparent;text-decoration:none;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s,color .2s,border-color .2s}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 24px rgba(31,111,235,.24)}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);text-decoration:none;box-shadow:0 14px 30px rgba(31,111,235,.3)}
.btn-ghost{background:#fff;color:var(--primary);border-color:rgba(31,111,235,.45)}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-dark);text-decoration:none;transform:translateY(-1px)}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px}

/* 首屏 */
.page-hero{padding:48px 0 72px;background:linear-gradient(180deg,#EEF4FF 0%,rgba(246,249,252,0) 100%)}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:24px;flex-wrap:wrap}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .current{color:var(--primary-dark);font-weight:600}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero-copy h1{font-size:clamp(30px,4.4vw,44px);line-height:1.2;margin-bottom:18px}
.hero-copy .lead{font-size:17px;color:var(--muted);margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.hero-points{display:grid;gap:10px}
.hero-points li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:#33455a}
.hero-points i{color:var(--teal);margin-top:5px}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-lg);box-shadow:var(--shadow)}
.hero-media .media-badge{position:absolute;left:20px;bottom:20px;background:rgba(255,255,255,.94);border-radius:14px;padding:12px 18px;box-shadow:0 10px 26px rgba(20,55,100,.16);font-size:13px;color:var(--muted);display:flex;align-items:center;gap:10px}
.hero-media .media-badge strong{display:block;color:var(--text);font-size:15px}

/* 标签墙 */
.tag-wall{display:flex;flex-wrap:wrap;gap:12px}
.tag{display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:14px;color:#33455a;box-shadow:0 4px 14px rgba(20,55,100,.05);transition:transform .2s,border-color .2s,color .2s,box-shadow .2s}
.tag i{color:var(--primary);font-size:13px}
.tag:hover{border-color:var(--primary);color:var(--primary-dark);transform:translateY(-2px);box-shadow:0 10px 24px rgba(31,111,235,.14)}
.tag.is-key{background:var(--primary-soft);border-color:rgba(31,111,235,.28);color:var(--primary-dark);font-weight:600}

/* 双列内容卡 */
.card-grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.info-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s,border-color .25s}
.info-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(31,111,235,.28)}
.card-icon{width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:19px;background:var(--primary-soft);color:var(--primary-dark);margin-bottom:18px}
.card-icon.teal{background:#E6F7F5;color:#0B8C7C}
.card-icon.orange{background:#FFF1E9;color:#D9612A}
.info-card h3{font-size:20px;margin-bottom:10px}
.info-card p{color:var(--muted);font-size:15px;margin-bottom:16px}
.card-points{display:grid;gap:8px}
.card-points li{display:flex;gap:10px;font-size:14px;color:#33455a;line-height:1.7}
.card-points i{color:var(--teal);font-size:12px;margin-top:7px}

/* 对比说明 */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compare-col{border-radius:var(--radius);padding:30px;border:1px solid var(--line)}
.compare-bad{background:#FFF7F3;border-color:#FFE0D0}
.compare-good{background:#F1FBF9;border-color:#CDEDE7}
.compare-col h3{display:flex;align-items:center;gap:10px;font-size:19px;margin-bottom:18px}
.compare-bad h3 i{color:var(--orange)}
.compare-good h3 i{color:var(--teal)}
.compare-row{display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed rgba(11,27,43,.12);font-size:15px;color:#33455a;line-height:1.7}
.compare-row:last-child{border-bottom:0;padding-bottom:0}
.compare-row i{margin-top:6px;font-size:13px}
.compare-bad .compare-row i{color:var(--orange)}
.compare-good .compare-row i{color:var(--teal)}

/* 数据条 */
.stats-band{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:40px;display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.stat-item{border-right:1px solid var(--line);padding-right:24px}
.stat-item:last-child{border-right:0;padding-right:0}
.stat-num{font-size:clamp(28px,3vw,38px);font-weight:700;color:var(--primary);line-height:1.2}
.stat-num span{font-size:16px;font-weight:600;color:var(--muted);margin-left:4px}
.stat-item p{color:var(--muted);font-size:14px;margin:8px 0 0}

/* 左侧图文说明 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-lg);box-shadow:var(--shadow)}
.split h2{font-size:clamp(24px,3vw,32px);margin-bottom:16px}
.split p{color:var(--muted)}
.split h2 + p{font-size:16px}
.split-list{display:grid;gap:14px;margin-top:22px}
.split-list li{display:flex;gap:12px;font-size:15px;color:#33455a}
.split-list .dot{width:26px;height:26px;flex:0 0 26px;border-radius:9px;background:var(--primary-soft);color:var(--primary-dark);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;margin-top:4px}

/* FAQ */
.faq-list{display:grid;gap:14px;max-width:920px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 6px 18px rgba(20,55,100,.05);overflow:hidden;transition:border-color .25s,box-shadow .25s}
.faq-item:hover{border-color:rgba(31,111,235,.3)}
.faq-item.is-open{box-shadow:var(--shadow)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 24px;text-align:left;font-size:17px;font-weight:600;color:var(--text);line-height:1.6}
.faq-sign{width:30px;height:30px;flex:0 0 30px;border-radius:10px;background:var(--primary-soft);color:var(--primary-dark);display:flex;align-items:center;justify-content:center;font-size:13px;transition:transform .25s,background .25s}
.faq-item.is-open .faq-sign{background:var(--primary);color:#fff;transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease,padding .25s ease;padding:0 24px;color:var(--muted);font-size:15px}
.faq-item.is-open .faq-a{max-height:520px;padding-bottom:22px}

/* CTA */
.cta-band{background:linear-gradient(135deg,#EAF2FF 0%,#F7FBFF 100%);border:1px solid #D8E6FF;border-radius:26px;padding:48px;display:grid;grid-template-columns:1.35fr .95fr;gap:36px;align-items:center}
.cta-band h2{font-size:clamp(24px,3vw,32px);margin-bottom:14px}
.cta-band p{color:var(--muted)}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:22px}
.cta-aside{background:#fff;border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow);padding:26px}
.cta-aside h3{font-size:17px;margin-bottom:14px}
.cta-aside ul{display:grid;gap:12px}
.cta-aside li{display:flex;gap:10px;font-size:14px;color:#33455a}
.cta-aside i{color:var(--primary);margin-top:4px}

/* 表单弹层 */
.reveal.contact-modal{display:none;position:fixed;inset:0;z-index:120;background:rgba(11,27,43,.45);padding:24px;overflow-y:auto}
.reveal.contact-modal.is-open{display:block}
.modal-panel{position:relative;background:#fff;border-radius:20px;max-width:580px;width:100%;margin:0 auto;padding:34px;box-shadow:0 30px 80px rgba(11,27,43,.3)}
.reveal.contact-modal.is-open .modal-panel{margin-top:40px;margin-bottom:40px}
.modal-close{position:absolute;top:16px;right:16px;width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--muted);background:#F3F7FC;transition:background .2s,color .2s}
.modal-close:hover{background:var(--primary-soft);color:var(--primary-dark)}
.modal-panel h3{font-size:22px;margin-bottom:8px}
.modal-panel .modal-sub{color:var(--muted);font-size:14px;margin-bottom:22px}
.form-field{margin-bottom:16px}
.form-field label{display:block;font-size:14px;font-weight:600;margin-bottom:7px}
.form-field input,.form-field select,.form-field textarea{width:100%;border:1px solid var(--line);border-radius:12px;padding:12px 14px;font-size:15px;font-family:inherit;color:var(--text);background:#fff;transition:border-color .2s,box-shadow .2s}
.form-field textarea{min-height:96px;resize:vertical}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(31,111,235,.12)}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--muted);line-height:1.7;margin:16px 0 20px}
.check-row input{width:18px;height:18px;margin-top:3px;flex:0 0 18px;accent-color:var(--primary)}
.form-note{display:none;border-radius:12px;padding:12px 14px;font-size:14px;margin-bottom:16px}
.form-note.is-visible{display:block}
.form-note.ok{background:#E8F8F5;color:#0B6B60}
.form-note.err{background:#FFF1E9;color:#B9481A}
.modal-privacy{background:#F6F9FC;border-radius:12px;padding:14px 16px;font-size:13px;color:var(--muted);margin-top:16px}

/* 页脚 */
.site-footer{background:var(--footer);color:#C7D5E8;padding:64px 0 28px;margin-top:16px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:36px}
.site-footer .brand{color:#fff}
.site-footer .brand:hover{color:#fff;text-decoration:none}
.site-footer .brand-name{color:#fff}
.site-footer .brand-sub{color:#93A7C0}
.footer-brand p{font-size:14px;color:#A9BBD3;margin-top:18px;line-height:1.8}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:#C7D5E8;font-size:14px}
.footer-col a:hover{color:#8FC0FF;text-decoration:none}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:#A9BBD3;line-height:1.7}
.footer-contact i{color:#6E93C7;margin-top:4px}
.footer-bottom{margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#93A7C0}
body.modal-open{overflow:hidden}

@media (max-width:1023px){
  :root{--space:64px}
  .nav-menu{position:fixed;top:60px;left:0;right:0;bottom:0;background:#fff;flex-direction:column;align-items:stretch;gap:6px;padding:20px 24px;display:none;overflow-y:auto;z-index:80;box-shadow:0 20px 40px rgba(20,55,100,.12)}
  .nav-menu.is-open{display:flex}
  .nav-link{padding:15px 16px;font-size:16px;border-radius:14px}
  .nav-toggle{display:inline-flex}
  .nav-inner{height:60px}
  .brand-sub{display:none}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .page-hero{padding:32px 0 56px}
  .card-grid-2{grid-template-columns:1fr}
  .compare{grid-template-columns:1fr}
  .stats-band{grid-template-columns:1fr;gap:22px;padding:30px}
  .stat-item{border-right:0;border-bottom:1px solid var(--line);padding:0 0 20px}
  .stat-item:last-child{border-bottom:0;padding-bottom:0}
  .split{grid-template-columns:1fr;gap:28px}
  .cta-band{grid-template-columns:1fr;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:640px){
  :root{--space:48px}
  .wrap{padding:0 18px}
  .hero-copy h1{font-size:clamp(26px,7vw,32px)}
  .hero-actions .btn{width:100%}
  .tag-wall{flex-wrap:nowrap;overflow-x:auto;padding-bottom:8px;-webkit-overflow-scrolling:touch}
  .tag{flex:0 0 auto}
  .info-card{padding:24px}
  .compare-col{padding:22px}
  .section{padding:48px 0}
  .modal-panel{padding:24px;border-radius:18px}
  .reveal.contact-modal{padding:0}
  .reveal.contact-modal.is-open .modal-panel{margin:0;border-radius:20px 20px 0 0;max-width:100%}
  .reveal.contact-modal{align-items:flex-end}
  .reveal.contact-modal.is-open{display:flex;align-items:flex-end}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq-q{padding:18px;font-size:16px}
  .faq-a{padding:0 18px}
  .faq-item.is-open .faq-a{padding-bottom:18px}
}
@media (max-width:520px){
  .hero-media .media-badge{left:12px;bottom:12px;padding:10px 14px;font-size:12px}
  .cta-actions .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --primary:#1F6FEB;
  --primary-dark:#1553B7;
  --primary-soft:#EAF2FF;
  --teal:#0FAF9B;
  --orange:#FF7A3D;
  --bg:#F6F9FC;
  --surface:#FFFFFF;
  --text:#0B1B2B;
  --muted:#5B6B7F;
  --border:#E3EAF2;
  --footer:#0B1F3A;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 10px 30px rgba(20,55,100,.08);
  --shadow-hover:0 16px 44px rgba(20,55,100,.14);
  --wrap:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,background-color .2s ease;}
a:hover{color:var(--primary-dark);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{font-family:inherit;color:var(--text);font-weight:700;margin:0;}
p{margin:0 0 16px;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid #BBD6FB;outline-offset:2px;border-radius:6px;}

.wrap{max-width:var(--wrap);width:100%;margin:0 auto;padding:0 24px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:#fff;
  border-bottom:1px solid var(--border);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:0 8px 26px rgba(20,55,100,.10);}
.nav-inner{display:flex;align-items:center;gap:26px;height:72px;}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);flex:0 0 auto;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:44px;height:44px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  border-radius:14px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#fff;font-weight:700;font-size:15px;letter-spacing:.5px;
  box-shadow:0 6px 16px rgba(31,111,235,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-size:17px;font-weight:700;color:var(--text);white-space:nowrap;}
.brand-sub{font-size:12px;color:var(--muted);white-space:nowrap;}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  padding:9px 15px;border-radius:999px;
  font-size:15px;font-weight:500;color:var(--muted);
  white-space:nowrap;transition:all .2s ease;
}
.nav-link:hover{color:var(--primary);background:var(--primary-soft);}
.nav-link.active{color:var(--primary);background:var(--primary-soft);font-weight:600;}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;height:44px;align-items:center;justify-content:center;
  border-radius:12px;border:1px solid var(--border);background:#fff;
  color:var(--text);cursor:pointer;font-size:18px;transition:all .2s ease;
}
.nav-toggle:hover{background:var(--primary-soft);color:var(--primary);border-color:#C9DDFB;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 24px;
  border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:all .2s ease;text-align:center;line-height:1.2;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(31,111,235,.26);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(31,111,235,.32);}
.btn-ghost{background:#fff;color:var(--primary);border-color:#C9DDFB;}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-dark);border-color:#9EC4F8;}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;}
.link-arrow:hover{text-decoration:underline;text-underline-offset:4px;}

/* ---------- 小首屏 ---------- */
.subhero{
  position:relative;
  padding:60px 0 52px;
  background:
    radial-gradient(900px 380px at 88% -10%, #E7F0FF 0%, rgba(231,240,255,0) 70%),
    linear-gradient(180deg,#F3F8FF 0%,#F6F9FC 100%);
  border-bottom:1px solid var(--border);
  overflow:hidden;
}
.subhero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(31,111,235,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(31,111,235,.05) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.7),rgba(0,0,0,0));
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.7),rgba(0,0,0,0));
}
.subhero .wrap{position:relative;z-index:1;}
.subhero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid #C9DDFB;color:var(--primary);
  border-radius:999px;padding:6px 14px;font-size:13px;font-weight:600;
  margin-bottom:18px;
}
.subhero h1{font-size:clamp(30px,4.2vw,42px);line-height:1.22;letter-spacing:-.5px;margin-bottom:16px;}
.subhero h1 em{font-style:normal;color:var(--primary);}
.subhero-lead{font-size:17px;color:var(--muted);max-width:620px;margin-bottom:24px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  background:#fff;border:1px solid var(--border);
  padding:7px 14px;border-radius:999px;font-size:13px;color:var(--muted);
}
.tag i{color:var(--teal);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-media{
  border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);aspect-ratio:16/9;background:#E7EFFA;
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);margin-top:34px;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .current{color:var(--primary);font-weight:600;}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section-alt{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-label{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:1px;
  color:var(--teal);margin-bottom:12px;
}
.section-title{font-size:clamp(24px,3.2vw,32px);line-height:1.3;margin-bottom:14px;}
.section-desc{color:var(--muted);font-size:16px;margin:0;}

/* ---------- 流程步骤 ---------- */
.steps-track{display:grid;grid-template-columns:repeat(5,1fr);gap:22px;}
.step-card{
  position:relative;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:26px 22px 24px;box-shadow:var(--shadow);
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.step-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px);border-color:#C9DDFB;}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:13px;
  background:var(--primary-soft);color:var(--primary);
  font-weight:700;font-size:16px;margin-bottom:16px;
}
.step-card h3{font-size:17px;margin-bottom:10px;}
.step-card p{font-size:14px;line-height:1.75;color:var(--muted);margin:0;}
.steps-hint{
  margin-top:26px;display:flex;align-items:flex-start;gap:10px;
  background:#fff;border:1px dashed #C9DDFB;border-radius:var(--radius-sm);
  padding:16px 20px;font-size:14px;color:var(--muted);
}
.steps-hint i{color:var(--primary);margin-top:4px;}

/* ---------- 图文说明 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;}
.split-media{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);aspect-ratio:4/3;background:#E7EFFA;}
.split-media img{width:100%;height:100%;object-fit:cover;}
.check-list{margin-top:8px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 0;border-bottom:1px solid var(--border);
}
.check-list li:last-child{border-bottom:0;}
.check-list i{color:var(--teal);font-size:16px;margin-top:5px;flex:0 0 auto;}
.check-list strong{display:block;font-size:16px;margin-bottom:2px;}
.check-list span{font-size:14px;color:var(--muted);line-height:1.7;}

/* ---------- 误点提示与数据条 ---------- */
.notice-list{display:grid;gap:12px;}
.notice-item{
  display:flex;gap:14px;align-items:flex-start;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:18px 20px;transition:border-color .2s ease,box-shadow .2s ease;
}
.notice-item:hover{border-color:#C9DDFB;box-shadow:var(--shadow);}
.notice-item i{color:var(--orange);font-size:17px;margin-top:4px;flex:0 0 auto;}
.notice-item p{margin:0;font-size:15px;color:var(--text);}
.notice-item p span{color:var(--muted);}

.stats-band{
  background:var(--primary-soft);
  border-radius:24px;
  padding:44px 40px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:26px;
}
.stat-item{text-align:left;}
.stat-num{
  font-size:clamp(30px,3.8vw,44px);font-weight:700;color:var(--primary);
  line-height:1.1;margin-bottom:8px;letter-spacing:-1px;
}
.stat-item:nth-child(2n) .stat-num{color:var(--teal);}
.stat-label{font-size:15px;font-weight:600;margin-bottom:4px;}
.stat-desc{font-size:13px;color:var(--muted);line-height:1.7;margin:0;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:#C9DDFB;box-shadow:var(--shadow);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;gap:14px;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  margin-left:auto;color:var(--primary);font-size:14px;
  transition:transform .25s ease;
}
.faq-item[open] summary::after{content:"\f068";}
.faq-item summary:hover{background:#FAFCFF;}
.faq-answer{padding:0 24px 22px;font-size:15px;color:var(--muted);line-height:1.85;}
.faq-answer p{margin:0;}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,#0B1F3A 0%,#143A6B 55%,#1F6FEB 130%);
  border-radius:26px;
  padding:56px 52px;
  display:flex;align-items:center;gap:40px;justify-content:space-between;
  color:#fff;box-shadow:0 24px 60px rgba(11,31,58,.24);
}
.cta-band h2{font-size:clamp(22px,2.8vw,30px);color:#fff;margin-bottom:12px;line-height:1.3;}
.cta-band p{color:#B9CDE6;font-size:15px;margin:0;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex:0 0 auto;}
.cta-band .btn-primary{background:#fff;color:var(--primary-dark);box-shadow:none;}
.cta-band .btn-primary:hover{background:#EAF2FF;color:var(--primary-dark);}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}

/* ---------- 表单弹层 ---------- */
.modal-mask{
  position:fixed;inset:0;z-index:200;
  background:rgba(11,27,43,.45);
  display:none;align-items:center;justify-content:center;
  padding:24px;
}
.modal-mask.open{display:flex;}
.modal-card{
  position:relative;width:100%;max-width:540px;max-height:88vh;overflow-y:auto;
  background:#fff;border-radius:20px;padding:34px 32px 30px;
  box-shadow:0 24px 60px rgba(11,27,43,.28);
}
.modal-card h3{font-size:22px;margin-bottom:8px;}
.modal-card .modal-sub{font-size:14px;color:var(--muted);margin-bottom:22px;}
.modal-close{
  position:absolute;top:16px;right:16px;
  width:38px;height:38px;border-radius:12px;border:1px solid var(--border);
  background:#fff;color:var(--muted);cursor:pointer;font-size:16px;
  display:flex;align-items:center;justify-content:center;transition:all .2s ease;
}
.modal-close:hover{background:var(--primary-soft);color:var(--primary);border-color:#C9DDFB;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;}
.field input[type="text"],
.field input[type="tel"],
.field select,
.field textarea{
  width:100%;padding:12px 14px;
  border:1px solid var(--border);border-radius:12px;
  background:#FBFDFF;color:var(--text);font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(31,111,235,.14);background:#fff;
}
.field textarea{min-height:104px;resize:vertical;}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--muted);line-height:1.65;}
.consent input{margin-top:4px;flex:0 0 auto;width:16px;height:16px;accent-color:var(--primary);}
.form-msg{
  display:none;border-radius:12px;padding:12px 16px;font-size:14px;margin-bottom:16px;
}
.form-msg.error{display:block;background:#FFF1EA;color:#C0440F;border:1px solid #FFD5BF;}
.form-msg.success{display:block;background:#E6F7F3;color:#0B7C6C;border:1px solid #B8E8DE;}
.form-privacy{
  margin-top:18px;padding:14px 16px;background:#F6F9FC;border-radius:12px;
  font-size:13px;color:var(--muted);line-height:1.7;
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer);color:#C7D5E8;padding:64px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:38px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-mark{background:linear-gradient(135deg,#2C82FF,#1553B7);}
.footer-brand .brand-name{color:#fff;white-space:normal;}
.footer-brand .brand-sub{color:#8FA9C8;}
.footer-brand p{font-size:14px;line-height:1.8;color:#A9BDD6;margin:0;max-width:340px;}
.site-footer h4{font-size:15px;color:#fff;margin:0 0 16px;font-weight:700;}
.site-footer ul{margin:0;padding:0;}
.site-footer li a{display:inline-block;padding:5px 0;font-size:14px;color:#C7D5E8;}
.site-footer li a:hover{color:#8CC0FF;}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#A9BDD6;margin-bottom:12px;line-height:1.7;}
.footer-contact i{color:#4E9BFF;margin-top:6px;flex:0 0 auto;}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#8FA9C8;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .steps-track{grid-template-columns:repeat(3,1fr);}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:30px;}
  .footer-contact-col{grid-column:span 3;}
}
@media (max-width:1023px){
  .nav-toggle{display:inline-flex;}
  .nav-inner{height:60px;gap:14px;}
  .nav-menu{
    position:fixed;left:0;right:0;top:60px;bottom:0;
    flex-direction:column;align-items:stretch;gap:6px;
    margin-left:0;padding:20px 24px 48px;
    background:#fff;overflow-y:auto;z-index:90;
    transform:translateY(-10px);opacity:0;pointer-events:none;
    transition:opacity .22s ease,transform .22s ease;
    border-top:1px solid var(--border);
  }
  .nav-menu.open{opacity:1;transform:none;pointer-events:auto;}
  .nav-link{padding:15px 16px;border-radius:12px;font-size:16px;}
  body.nav-open{overflow:hidden;}
  .brand-name{font-size:15px;white-space:normal;}
  .brand-sub{display:none;}
  .brand-mark{width:38px;height:38px;border-radius:12px;font-size:13px;}
  .subhero{padding:44px 0 40px;}
  .subhero-grid{grid-template-columns:1fr;gap:32px;}
  .subhero-lead{font-size:16px;}
  .section{padding:64px 0;}
  .split{grid-template-columns:1fr;gap:30px;}
  .steps-track{
    display:flex;gap:16px;overflow-x:auto;padding:4px 4px 14px;
    scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
  }
  .step-card{flex:0 0 268px;scroll-snap-align:start;}
  .stats-band{grid-template-columns:repeat(2,1fr);gap:26px;padding:34px 26px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 30px;gap:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-contact-col{grid-column:span 2;}
}
@media (max-width:639px){
  .wrap{padding:0 18px;}
  .brand-mark{width:34px;height:34px;border-radius:10px;font-size:12px;}
  .brand-name{font-size:14px;}
  .brand-sub{display:none;}
  .btn{padding:0 20px;font-size:15px;}
  .btn-sm{min-height:40px;padding:0 14px;font-size:13px;}
  .nav-right .btn-sm span{display:none;}
  .subhero{padding:36px 0 32px;}
  .section{padding:52px 0;}
  .section-head{margin-bottom:30px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .stats-band{grid-template-columns:1fr;padding:28px 22px;}
  .stat-item{text-align:left;border-bottom:1px solid #D7E5FA;padding-bottom:18px;}
  .stat-item:last-child{border-bottom:0;padding-bottom:0;}
  .faq-item summary{padding:17px 18px;font-size:15px;}
  .faq-answer{padding:0 18px 20px;font-size:14.5px;}
  .cta-band{border-radius:20px;padding:34px 22px;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-contact-col{grid-column:span 1;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .modal-mask{padding:0;align-items:flex-end;}
  .modal-card{max-width:100%;border-radius:20px 20px 0 0;max-height:92vh;padding:28px 20px 26px;}
}