/* roulang page: index */
:root{
  --primary:#1D5FBF;
  --primary-dark:#14498F;
  --primary-100:#E8F0FC;
  --primary-50:#F5F8FD;
  --accent:#F26B3A;
  --accent-dark:#DE5A2C;
  --accent-100:#FEEDE5;
  --bg:#FFFFFF;
  --bg-soft:#F6F9FD;
  --card:#FFFFFF;
  --border:#E2E8F3;
  --line:#EDF2F9;
  --text:#17233A;
  --text-2:#5A6B85;
  --text-3:#8A99B0;
  --ok:#17936B;
  --warn:#E0A028;
  --err:#D0453F;
  --r-card:16px;
  --r-img:14px;
  --r-ctl:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(17,44,90,.04),0 8px 24px rgba(17,44,90,.06);
  --sh-2:0 12px 32px rgba(17,44,90,.12);
  --sh-3:0 24px 64px rgba(17,44,90,.18);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{letter-spacing:-.01em;line-height:1.32;font-weight:700}
input,select,textarea{font:inherit;color:inherit}
::selection{background:rgba(29,95,191,.16)}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
@media (min-width:1600px){:root{--container:1280px}}
@media (max-width:1023px){.container{padding:0 20px}}
@media (max-width:767px){.container{padding:0 16px}}

.section{padding:88px 0}
.section-soft{background:var(--bg-soft)}
@media (max-width:1023px){.section{padding:64px 0}}
@media (max-width:767px){.section{padding:48px 0}}

.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head h2{font-size:30px;line-height:1.32}
.section-head p{margin-top:10px;color:var(--text-2);font-size:15px;max-width:640px}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14px;font-weight:600;white-space:nowrap;transition:gap .18s ease}
.link-more:hover{gap:10px}
.arrow{font-style:normal}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:90;background:#fff;border-bottom:1px solid var(--border);transition:box-shadow .22s ease,background-color .22s ease}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(17,44,90,.08);background:rgba(255,255,255,.95)}
.header-inner{display:flex;align-items:center;gap:22px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:28px;height:28px;border-radius:8px;background:var(--primary-100);color:var(--primary);display:grid;place-items:center;flex:0 0 auto}
.brand-text{font-size:18px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:20px;margin-left:6px}
.nav-link{position:relative;font-size:15px;color:var(--text-2);padding:22px 0;transition:color .15s ease;white-space:nowrap}
.nav-link:hover{color:var(--primary)}
.nav-link.is-active{color:var(--text);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:14px;width:24px;height:2px;border-radius:2px;background:var(--primary)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-search{display:flex;align-items:center;gap:8px;height:38px;width:220px;padding:0 12px;background:#F2F5FA;border:1px solid transparent;border-radius:var(--r-ctl);transition:background-color .16s ease,border-color .16s ease,box-shadow .16s ease}
.nav-search:focus-within{background:#fff;border-color:var(--primary);box-shadow:0 0 0 4px rgba(29,95,191,.12)}
.nav-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px}
.nav-search svg{flex:0 0 auto;color:var(--text-3)}
.nav-login{font-size:14px;color:var(--text-2);padding:6px 4px;transition:color .15s ease}
.nav-login:hover{color:var(--primary)}
.nav-toggle{display:none;width:40px;height:40px;border-radius:var(--r-ctl);border:1px solid var(--border);align-items:center;justify-content:center;color:var(--text)}
.nav-toggle:hover{background:var(--primary-50)}

@media (max-width:1279px){.nav-search{width:170px}}
@media (max-width:1150px){.nav-search{display:none}}
@media (max-width:1023px){
  .main-nav{gap:16px}
  .nav-link{font-size:14px}
  .nav-login{display:none}
}
@media (max-width:900px){
  .main-nav{display:none}
  .header-actions .btn-outline{display:none}
  .nav-toggle{display:inline-flex}
}

.drawer-mask{position:fixed;inset:0;background:rgba(15,42,80,.42);opacity:0;visibility:hidden;transition:opacity .22s ease,visibility .22s ease;z-index:120}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(360px,88vw);background:#fff;z-index:130;transform:translateX(102%);transition:transform .26s ease;display:flex;flex-direction:column;box-shadow:var(--sh-3)}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:68px;padding:0 20px;border-bottom:1px solid var(--line)}
.drawer-close{width:36px;height:36px;border-radius:var(--r-ctl);display:grid;place-items:center;border:1px solid var(--border);color:var(--text-2)}
.drawer-body{padding:16px 20px;overflow-y:auto;flex:1}
.drawer-search{display:flex;align-items:center;height:44px;padding:0 12px;background:#F2F5FA;border-radius:var(--r-ctl);margin-bottom:12px}
.drawer-search input{flex:1;border:0;background:transparent;outline:none;font-size:14px;min-width:0}
.drawer-item{display:flex;align-items:center;height:48px;font-size:15px;color:var(--text-2);border-bottom:1px solid var(--line);transition:color .15s ease}
.drawer-item:hover,.drawer-item.is-active{color:var(--primary);font-weight:600}
.drawer-foot{padding:16px 20px 24px;display:grid;gap:10px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:var(--r-ctl);font-size:15px;font-weight:600;border:1px solid transparent;transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease;white-space:nowrap}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(29,95,191,.30)}
.btn:disabled,.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-dark);transform:translateY(-1px);box-shadow:0 10px 22px rgba(242,107,58,.22)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px)}
.btn-outline{border-color:var(--primary);color:var(--primary);background:#fff}
.btn-outline:hover{background:var(--primary-50);transform:translateY(-1px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}

.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);font-size:12px;font-weight:600;background:var(--primary-100);color:var(--primary);white-space:nowrap}
.badge-accent{background:var(--accent-100);color:var(--accent-dark)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:72px 0 84px;background:linear-gradient(180deg,#F8FBFF 0%,#FFFFFF 68%)}
.hero::before{content:"";position:absolute;top:-140px;right:-160px;width:640px;height:640px;background:rgba(29,95,191,.07);transform:rotate(24deg);border-radius:120px;pointer-events:none}
.hero::after{content:"";position:absolute;left:-120px;bottom:-180px;width:420px;height:420px;background:rgba(242,107,58,.06);transform:rotate(-18deg);border-radius:96px;pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1.4fr 1fr;gap:56px;align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--r-pill);background:var(--primary-100);color:var(--primary);font-size:13px;font-weight:600;margin-bottom:20px}
.hero h1{font-size:40px;line-height:1.24;max-width:620px}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.85;color:var(--text-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-trust{display:flex;flex-wrap:wrap;gap:22px;margin-top:30px}
.hero-trust li{position:relative;padding-left:20px;font-size:14px;color:var(--text-3)}
.hero-trust li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;background:var(--primary-100);border:2px solid var(--primary)}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;box-shadow:var(--sh-1)}
.hero-float{position:absolute;left:-18px;bottom:-18px;width:220px;background:#fff;border:1px solid var(--border);border-radius:16px;padding:14px 18px;box-shadow:var(--sh-2)}
.hero-float strong{font-size:30px;line-height:1;color:var(--primary)}
.hero-float span{font-size:14px;color:var(--text-2);margin-left:4px}
.hero-float p{margin-top:6px;font-size:13px;line-height:1.7;color:var(--text-3)}

@media (max-width:1023px){
  .hero{padding:56px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:32px;max-width:none}
  .hero-sub{font-size:16px}
}
@media (max-width:767px){
  .hero{padding:40px 0 52px}
  .hero h1{font-size:28px;line-height:1.34}
  .hero-float{position:static;width:100%;margin-top:16px;box-shadow:var(--sh-1)}
  .hero-visual img{border-radius:var(--r-img)}
  .hero-actions .btn{flex:1 1 100%}
}

/* ---------- 痛点提问 ---------- */
.ask-grid{display:grid;grid-template-columns:1fr 1.25fr;gap:56px;align-items:start}
.ask-intro h2{font-size:30px;line-height:1.34}
.ask-intro p{margin-top:16px;color:var(--text-2);font-size:15px}
.ask-list{border-top:1px solid var(--line)}
.ask-list li{display:flex;gap:18px;padding:20px 0;border-bottom:1px solid var(--line)}
.ask-num{flex:0 0 auto;width:32px;height:32px;border-radius:50%;background:var(--primary-100);color:var(--primary);font-size:13px;font-weight:700;display:grid;place-items:center}
.ask-q{font-size:16px;font-weight:600;color:var(--primary);line-height:1.6}
.ask-d{margin-top:6px;font-size:14px;color:var(--text-2);line-height:1.8}
@media (max-width:1023px){
  .ask-grid{grid-template-columns:1fr;gap:32px}
  .ask-intro h2{font-size:24px}
}

/* ---------- 方案卡片 ---------- */
.scheme-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:24px;align-items:stretch}
.card{position:relative;background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease;overflow:hidden}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.card::before{content:"";position:absolute;left:0;top:0;right:0;height:3px;background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .22s ease}
.card:hover::before{transform:scaleX(1)}
.scheme-card{display:flex;flex-direction:column;padding:0}
.scheme-card .thumb{aspect-ratio:16/9;background:#F2F5FA;overflow:hidden}
.scheme-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.scheme-card:hover .thumb img{transform:scale(1.04)}
.scheme-card .body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.scheme-card h3{font-size:20px;line-height:1.42}
.scheme-card p{margin-top:10px;font-size:14px;line-height:1.85;color:var(--text-2);flex:1}
.card-link{margin-top:18px;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);transition:gap .18s ease}
.scheme-card:hover .card-link{gap:10px}
.scheme-card.is-wide .body{padding:28px}
.scheme-card.is-wide h3{font-size:22px}
.scheme-card.is-wide p{max-width:520px;font-size:15px}
@media (max-width:1023px){
  .scheme-grid{grid-template-columns:1fr 1fr}
  .scheme-card.is-wide{grid-column:1 / -1}
}
@media (max-width:767px){
  .scheme-grid{grid-template-columns:1fr}
  .scheme-card.is-wide{grid-column:auto}
}

/* ---------- 分类入口 ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.cat-card{display:flex;flex-direction:column;padding:24px}
.cat-icon{width:44px;height:44px;border-radius:12px;background:var(--primary-100);color:var(--primary);display:grid;place-items:center;margin-bottom:16px}
.cat-card h3{font-size:18px;line-height:1.45}
.cat-card p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--text-2);flex:1}
.cat-card .card-link{margin-top:16px}
@media (max-width:1023px){.cat-grid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.cat-grid{grid-template-columns:1fr}}

/* ---------- 数据条 ---------- */
.stats-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;background:rgba(29,95,191,.06);border-radius:var(--r-card);padding:36px 32px}
.stat strong{font-size:36px;line-height:1;color:var(--primary);font-weight:700}
.stat span{font-size:14px;color:var(--text-2);margin-left:6px}
.stat .stat-label{margin-top:12px;font-size:14px;font-weight:600;color:var(--text)}
.stat .stat-desc{margin-top:4px;font-size:13px;line-height:1.7;color:var(--text-3)}
@media (max-width:1023px){.stats-bar{grid-template-columns:1fr 1fr;gap:28px 24px;padding:28px 24px}.stat strong{font-size:30px}}
@media (max-width:520px){.stats-bar{grid-template-columns:1fr 1fr;padding:24px 18px}.stat strong{font-size:26px}}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:2fr 1fr;gap:32px;align-items:start}
.news-feature{display:block;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;transition:transform .18s ease,box-shadow .18s ease}
.news-feature:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.news-feature .cover{aspect-ratio:16/9;background:#F2F5FA;overflow:hidden}
.news-feature .cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-feature:hover .cover img{transform:scale(1.03)}
.news-feature .fb-body{padding:24px 26px 26px}
.news-feature h3{font-size:21px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .16s ease}
.news-feature:hover h3{color:var(--primary)}
.news-feature p{margin-top:10px;font-size:14px;line-height:1.85;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:12px;margin-top:18px;font-size:13px;color:var(--text-3)}
.news-side{display:grid;gap:16px}
.news-mini{display:grid;grid-template-columns:96px 1fr;gap:14px;padding:14px;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease}
.news-mini:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.news-mini .mini-thumb{aspect-ratio:4/3;border-radius:var(--r-img);overflow:hidden;background:#F2F5FA}
.news-mini .mini-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-mini:hover .mini-thumb img{transform:scale(1.05)}
.news-mini h4{font-size:15px;line-height:1.5;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .16s ease}
.news-mini:hover h4{color:var(--primary)}
.news-mini .mini-meta{margin-top:8px;font-size:12px;color:var(--text-3);display:flex;gap:10px;flex-wrap:wrap}
.empty-state{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:48px 24px;text-align:center;box-shadow:var(--sh-1)}
.empty-state .empty-icon{width:56px;height:56px;margin:0 auto 16px;border-radius:16px;background:var(--primary-50);color:var(--primary);display:grid;place-items:center}
.empty-state p{color:var(--text-2);font-size:15px}
.empty-state .btn{margin-top:20px}
@media (max-width:1023px){
  .news-grid{grid-template-columns:1fr;gap:24px}
  .news-side{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  .news-side{grid-template-columns:1fr}
  .news-feature h3{font-size:19px}
}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:1fr 1.6fr;gap:56px;align-items:start}
.faq-intro h2{font-size:30px;line-height:1.34}
.faq-intro p{margin-top:16px;color:var(--text-2);font-size:15px}
.faq-intro .btn{margin-top:24px}
.faq-list{display:grid;gap:14px}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--r-img);overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease}
.faq-item:hover{box-shadow:var(--sh-1)}
.faq-item.is-open{border-color:#CFDDF2;box-shadow:var(--sh-1)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding:14px 20px;text-align:left;font-size:16px;font-weight:600;position:relative;transition:color .16s ease}
.faq-item.is-open .faq-q{color:var(--primary)}
.faq-item.is-open .faq-q::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary)}
.faq-icon{position:relative;flex:0 0 auto;width:20px;height:20px}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.faq-icon::before{left:0;top:9px;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .28s ease}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a > div{overflow:hidden}
.faq-a p{padding:0 20px 18px;font-size:15px;line-height:1.9;color:var(--text-2)}
@media (max-width:1023px){
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .faq-intro h2{font-size:24px}
}

/* ---------- 表单 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:56px;align-items:start}
.contact-info h2{font-size:30px;line-height:1.34}
.contact-info p{margin-top:16px;color:var(--text-2);font-size:15px}
.contact-points{margin-top:26px;display:grid;gap:14px}
.contact-points li{display:flex;gap:12px;font-size:14px;color:var(--text-2);line-height:1.8}
.contact-points .dot{flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:var(--primary-100);color:var(--primary);display:grid;place-items:center;font-size:12px;font-weight:700;margin-top:4px}
.form-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:32px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--text)}
.field .req{color:var(--accent)}
.control{width:100%;height:46px;padding:0 14px;background:#fff;border:1px solid var(--border);border-radius:var(--r-ctl);font-size:15px;outline:none;transition:border-color .16s ease,box-shadow .16s ease,background-color .16s ease}
textarea.control{height:auto;min-height:112px;padding:12px 14px;line-height:1.8;resize:vertical}
select.control{appearance:none;background-image:linear-gradient(45deg,transparent 50%,#8A99B0 50%),linear-gradient(135deg,#8A99B0 50%,transparent 50%);background-position:calc(100% - 18px) 20px,calc(100% - 13px) 20px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:38px}
.control:hover{border-color:#CFDDF2}
.control:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(29,95,191,.12)}
.control.has-error{border-color:var(--err)}
.field-error{margin-top:6px;font-size:12px;color:var(--err);display:none}
.field-error.is-show{display:block}
.checkbox{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--text-2);line-height:1.75}
.checkbox input{width:18px;height:18px;margin-top:3px;accent-color:var(--primary);flex:0 0 auto}
.form-card .btn-accent{margin-top:8px}
.form-note{margin-top:14px;font-size:12px;color:var(--text-3)}
@media (max-width:1023px){
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .contact-info h2{font-size:24px}
  .form-card{padding:24px}
}

/* ---------- 信任条带 ---------- */
.trust-strip{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:36px 0}
.trust-inner{display:flex;align-items:center;justify-content:space-between;gap:32px}
.trust-text{font-size:14px;line-height:1.9;color:var(--text-2);max-width:820px}
.trust-icons{display:flex;gap:12px;flex:0 0 auto}
.trust-icons span{width:40px;height:40px;border-radius:12px;background:#fff;border:1px solid var(--border);display:grid;place-items:center;color:var(--primary)}
@media (max-width:767px){.trust-inner{flex-direction:column;align-items:flex-start;gap:20px}}

/* ---------- 模态 ---------- */
.modal-mask{position:fixed;inset:0;z-index:200;background:rgba(15,42,80,.45);display:none;align-items:center;justify-content:center;padding:24px}
.modal-mask.is-open{display:flex}
.modal{width:100%;max-width:560px;background:#fff;border-radius:18px;box-shadow:var(--sh-3);padding:30px;max-height:90vh;overflow-y:auto;animation:modalIn .22s ease}
@keyframes modalIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:8px}
.modal-head h3{font-size:22px;line-height:1.4}
.modal-head p{margin-top:8px;font-size:14px;color:var(--text-2);line-height:1.8}
.modal-close{width:36px;height:36px;border-radius:var(--r-ctl);border:1px solid var(--border);display:grid;place-items:center;color:var(--text-3);flex:0 0 auto}
.modal-close:hover{color:var(--text);background:var(--primary-50)}
.modal .form-card{border:0;box-shadow:none;padding:16px 0 0}
@media (max-width:767px){
  .modal-mask{padding:0;align-items:flex-end}
  .modal{max-width:100%;border-radius:20px 20px 0 0;max-height:88vh;padding:24px 20px 28px}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--border);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-desc{font-size:14px;line-height:1.9;color:var(--text-2);max-width:340px}
.footer-col h4{font-size:14px;color:var(--primary);margin-bottom:16px;font-weight:700}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--text-2);transition:color .15s ease}
.footer-col a:hover{color:var(--primary)}
.footer-col li{font-size:14px;color:var(--text-2)}
.footer-bottom{margin-top:48px;border-top:1px solid var(--border);padding:20px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.footer-bottom p{font-size:12px;color:var(--text-3)}
.footer-bottom .footer-links{display:flex;gap:18px}
.footer-bottom .footer-links a{font-size:12px;color:var(--text-3);transition:color .15s ease}
.footer-bottom .footer-links a:hover{color:var(--primary)}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media (max-width:520px){.footer-grid{grid-template-columns:1fr}.footer-bottom{flex-direction:column;align-items:flex-start}}

/* roulang page: category1 */
:root{
  --primary:#1D5FBF;
  --primary-dark:#14498F;
  --primary-light:#E8F0FC;
  --primary-xlight:#F5F8FD;
  --accent:#F26B3A;
  --accent-light:#FEEDE5;
  --bg:#FFFFFF;
  --bg-alt:#F6F9FD;
  --card:#FFFFFF;
  --border:#E2E8F3;
  --divider:#EDF2F9;
  --text:#17233A;
  --text-2:#5A6B85;
  --text-3:#8A99B0;
  --white:#FFFFFF;
  --success:#17936B;
  --warn:#E0A028;
  --error:#D0453F;
  --radius-card:16px;
  --radius-img:14px;
  --radius-ctl:10px;
  --radius-modal:18px;
  --shadow-1:0 1px 2px rgba(17,44,90,.04), 0 8px 24px rgba(17,44,90,.06);
  --shadow-2:0 12px 32px rgba(17,44,90,.12);
  --shadow-3:0 24px 64px rgba(17,44,90,.18);
  --container:1200px;
  --gutter:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .15s ease,background-color .15s ease,border-color .15s ease;}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none;}
input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{font-weight:650;letter-spacing:-0.01em;line-height:1.35;}
:focus-visible{outline:3px solid rgba(29,95,191,.3);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-alt{background:var(--bg-alt);}
.section-head{margin-bottom:40px;}
.section-head h2{font-size:30px;line-height:38px;}
.section-head .sub{margin-top:12px;color:var(--text-2);font-size:16px;max-width:760px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--primary);background:var(--primary-light);border-radius:999px;padding:5px 14px;margin-bottom:14px;}
.split-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:var(--radius-ctl);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-accent{background:var(--accent);color:var(--white);border:1px solid var(--accent);}
.btn-accent:hover{background:#DA5A2C;border-color:#DA5A2C;transform:translateY(-1px);box-shadow:0 10px 22px rgba(242,107,58,.24);}
.btn-accent:active{transform:translateY(0);box-shadow:none;}
.btn-outline{background:transparent;color:var(--primary);border:1px solid var(--primary);}
.btn-outline:hover{background:var(--primary-light);transform:translateY(-1px);}
.btn-primary{background:var(--primary);color:var(--white);border:1px solid var(--primary);}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);transform:translateY(-1px);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;border-radius:9px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:15px;font-weight:600;}
.link-more svg{transition:transform .18s ease;}
.link-more:hover{color:var(--primary-dark);}
.link-more:hover svg{transform:translateX(4px);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--white);
  border-bottom:1px solid var(--border);transition:box-shadow .2s ease,background-color .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(17,44,90,.08);background:rgba(255,255,255,.96);}
.header-inner{display:flex;align-items:center;gap:24px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--text);flex-shrink:0;}
.brand-mark{
  width:30px;height:30px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary-light);color:var(--primary);border:1px solid #D3E2F8;
}
.brand-text{letter-spacing:-0.01em;}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px;}
.nav-link{position:relative;font-size:15px;color:var(--text-2);padding:6px 0;}
.nav-link:hover{color:var(--primary);}
.nav-link.is-active{color:var(--primary);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-14px;height:3px;border-radius:3px;background:var(--primary);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;width:240px;height:38px;padding:0 12px;
  background:#F2F5FA;border:1px solid transparent;border-radius:var(--radius-ctl);color:var(--text-3);
  transition:background-color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.nav-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px;color:var(--text);}
.nav-search input::placeholder{color:var(--text-3);}
.nav-search:focus-within{background:var(--white);border-color:var(--primary);box-shadow:0 0 0 4px rgba(29,95,191,.12);}
.nav-login{font-size:15px;color:var(--text-2);padding:0 4px;}
.nav-login:hover{color:var(--primary);}
.nav-toggle{display:none;width:40px;height:40px;border-radius:var(--radius-ctl);border:1px solid var(--border);align-items:center;justify-content:center;color:var(--text);}

/* ---------- 窄版 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;background:var(--primary-xlight);
  border-bottom:1px solid var(--divider);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center right;opacity:.10;
}
.page-hero::after{
  content:"";position:absolute;top:-120px;right:-120px;width:520px;height:420px;
  background:rgba(29,95,191,.08);transform:skewX(-14deg);border-radius:32px;pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.hero-band{padding:44px 0 56px;min-height:280px;display:flex;flex-direction:column;justify-content:center;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px;flex-wrap:wrap;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:#C3CEDF;}
.hero-band h1{font-size:36px;line-height:46px;max-width:760px;}
.hero-band .lede{margin-top:16px;font-size:16px;color:var(--text-2);max-width:700px;}
.hero-actions{margin-top:26px;display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.hero-meta{display:flex;gap:20px;flex-wrap:wrap;margin-top:26px;}
.hero-meta span{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--text-3);}

/* ---------- 图文交错 ---------- */
.feature-row{
  display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;
}
.feature-row + .feature-row{margin-top:72px;padding-top:72px;border-top:1px solid var(--divider);}
.feature-row.is-reverse .feature-media{order:2;}
.feature-media{position:relative;}
.feature-media .frame{
  border-radius:20px;overflow:hidden;box-shadow:var(--shadow-1);border:1px solid var(--border);
  aspect-ratio:4/3;background:#F2F5FA;
}
.feature-media img{width:100%;height:100%;object-fit:cover;}
.feature-media .tag-float{
  position:absolute;left:-14px;bottom:22px;background:var(--white);border:1px solid var(--border);
  border-radius:var(--radius-card);box-shadow:var(--shadow-2);padding:14px 18px;max-width:230px;
}
.feature-media .tag-float strong{display:block;font-size:20px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;}
.feature-media .tag-float small{display:block;font-size:12px;color:var(--text-3);margin-top:4px;line-height:1.6;}
.feature-body h3{font-size:24px;line-height:32px;}
.feature-body p{margin-top:14px;color:var(--text-2);}
.feature-list{margin-top:18px;display:grid;gap:10px;}
.feature-list li{position:relative;padding-left:22px;font-size:15px;color:var(--text-2);}
.feature-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;background:var(--primary-light);border:2px solid var(--primary);
}
.feature-body .link-more{margin-top:22px;}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;background:var(--primary-light);color:var(--primary);
}
.badge-accent{background:var(--accent-light);color:#C24B1D;}

/* ---------- 模块速览条 ---------- */
.stat-bar{
  background:rgba(29,95,191,.06);border:1px solid #DBE7F9;border-radius:var(--radius-card);
  padding:28px 32px;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.stat-item .num{font-size:30px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.2;}
.stat-item .num em{font-style:normal;font-size:15px;font-weight:600;margin-left:4px;color:var(--primary-dark);}
.stat-item .label{font-size:14px;font-weight:600;margin-top:6px;}
.stat-item .desc{font-size:12px;color:var(--text-3);margin-top:4px;line-height:1.7;}

/* ---------- 场景卡（双列宽卡） ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.scene-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-1);position:relative;overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.scene-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--primary);
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D2E0F5;}
.scene-card:hover::before{transform:scaleX(1);}
.scene-icon{
  width:44px;height:44px;border-radius:12px;background:var(--primary-light);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.scene-card h3{font-size:20px;line-height:28px;}
.scene-card p{margin-top:10px;color:var(--text-2);font-size:15px;}
.scene-card .link-more{margin-top:16px;font-size:14px;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:920px;}
.faq-item{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-img);
  box-shadow:var(--shadow-1);overflow:hidden;position:relative;transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item::after{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary);
  transform:scaleY(0);transform-origin:top;transition:transform .2s ease;
}
.faq-item.is-open{border-color:#D2E0F5;box-shadow:var(--shadow-2);}
.faq-item.is-open::after{transform:scaleY(1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
}
.faq-q:hover{color:var(--primary);}
.faq-q .icon{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;background:var(--primary-light);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;line-height:1;
  transition:transform .2s ease,background-color .2s ease;
}
.faq-item.is-open .faq-q .icon{background:var(--primary);color:var(--white);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a .inner{padding:0 22px 18px;color:var(--text-2);font-size:16px;line-height:1.9;}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:rgba(29,95,191,.06);border:1px solid #DBE7F9;border-radius:var(--radius-card);
  padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-band h2{font-size:26px;line-height:36px;max-width:560px;}
.cta-band p{margin-top:12px;color:var(--text-2);max-width:600px;font-size:15px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-alt);border-top:1px solid var(--border);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-desc{font-size:14px;color:var(--text-2);max-width:340px;line-height:1.9;}
.footer-col h4{font-size:14px;font-weight:600;color:var(--primary);margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col li,.footer-col a{font-size:14px;color:var(--text-2);}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  border-top:1px solid var(--divider);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:12px;color:var(--text-3);}
.footer-links{display:flex;gap:18px;flex-wrap:wrap;}
.footer-links a{font-size:12px;color:var(--text-3);}
.footer-links a:hover{color:var(--primary);}

/* ---------- 模态 ---------- */
.modal{
  position:fixed;inset:0;z-index:100;display:none;align-items:center;justify-content:center;padding:24px;
  background:rgba(15,42,80,.45);
}
.modal.is-open{display:flex;}
.modal-panel{
  width:100%;max-width:560px;background:var(--white);border-radius:var(--radius-modal);
  box-shadow:var(--shadow-3);padding:32px;position:relative;max-height:88vh;overflow:auto;
}
.modal-panel h3{font-size:22px;line-height:30px;}
.modal-panel .modal-sub{margin-top:10px;font-size:14px;color:var(--text-2);}
.modal-close{
  position:absolute;top:14px;right:14px;width:34px;height:34px;border-radius:50%;
  background:var(--bg-alt);color:var(--text-2);display:inline-flex;align-items:center;justify-content:center;
}
.modal-close:hover{background:var(--primary-light);color:var(--primary);}

/* ---------- 表单 ---------- */
.form-grid{display:grid;gap:16px;margin-top:22px;}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;}
.field .ctl{
  width:100%;height:46px;padding:0 14px;border:1px solid var(--border);border-radius:var(--radius-ctl);
  background:var(--white);outline:none;transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea.ctl{height:auto;padding:12px 14px;resize:vertical;min-height:104px;line-height:1.8;}
.field .ctl:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(29,95,191,.12);}
.field .hint{font-size:12px;color:var(--text-3);margin-top:6px;}
.check{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-2);line-height:1.8;}
.check input{width:16px;height:16px;margin-top:6px;accent-color:var(--primary);}

/* ---------- 响应式 ---------- */
@media (min-width:1600px){
  :root{--container:1280px;}
}
@media (max-width:1279px){
  .nav-search{width:200px;}
  .main-nav{gap:20px;}
}
@media (max-width:1023px){
  .section{padding:64px 0;}
  .header-inner{gap:16px;}
  .nav-search{display:none;}
  .hero-band h1{font-size:30px;line-height:40px;}
  .feature-row{grid-template-columns:1fr;gap:32px;}
  .feature-row.is-reverse .feature-media{order:0;}
  .feature-row + .feature-row{margin-top:52px;padding-top:52px;}
  .stat-bar{grid-template-columns:repeat(2,1fr);padding:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:48px 0;}
  .main-nav{
    position:fixed;top:68px;right:0;bottom:0;width:290px;max-width:82vw;background:var(--white);
    flex-direction:column;align-items:stretch;gap:0;padding:12px 20px 24px;margin:0;
    border-left:1px solid var(--border);box-shadow:var(--shadow-3);
    transform:translateX(105%);transition:transform .26s ease;overflow-y:auto;z-index:70;
  }
  .main-nav.is-open{transform:translateX(0);}
  .nav-link{padding:14px 0;border-bottom:1px solid var(--divider);font-size:16px;min-height:48px;display:flex;align-items:center;}
  .nav-link.is-active::after{display:none;}
  .nav-link.is-active{color:var(--primary);}
  .nav-toggle{display:inline-flex;}
  .nav-login,.header-actions .btn-outline{display:none;}
  .header-actions{gap:10px;}
  .hero-band{padding:32px 0 44px;min-height:220px;}
  .hero-band h1{font-size:26px;line-height:36px;}
  .section-head h2{font-size:24px;line-height:32px;}
  .scene-grid{grid-template-columns:1fr;}
  .feature-media .tag-float{left:12px;bottom:12px;padding:12px 14px;max-width:200px;}
  .cta-band{padding:28px 24px;}
  .cta-band h2{font-size:22px;line-height:30px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:24px;padding-bottom:32px;}
  .modal{align-items:flex-end;padding:0;}
  .modal-panel{max-width:100%;border-radius:20px 20px 0 0;max-height:88vh;padding:26px 20px 30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:519px){
  .container{padding:0 16px;}
  .hero-band h1{font-size:23px;line-height:33px;}
  .stat-bar{grid-template-columns:1fr 1fr;gap:18px;padding:20px;}
  .stat-item .num{font-size:24px;}
  .hero-actions .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: article */
:root{
  --primary:#1D5FBF;
  --primary-dark:#14498F;
  --primary-light:#E8F0FC;
  --primary-xlight:#F5F8FD;
  --accent:#F26B3A;
  --accent-dark:#D9552A;
  --accent-light:#FEEDE5;
  --bg:#FFFFFF;
  --bg-soft:#F6F9FD;
  --card:#FFFFFF;
  --border:#E2E8F3;
  --line:#EDF2F9;
  --text:#17233A;
  --text-2:#5A6B85;
  --text-3:#8A99B0;
  --white:#FFFFFF;
  --success:#17936B;
  --warn:#E0A028;
  --danger:#D0453F;
  --r-card:16px;
  --r-img:14px;
  --r-ctrl:10px;
  --r-modal:18px;
  --shadow-1:0 1px 2px rgba(17,44,90,.04), 0 8px 24px rgba(17,44,90,.06);
  --shadow-2:0 12px 32px rgba(17,44,90,.12);
  --shadow-3:0 24px 64px rgba(17,44,90,.18);
  --container:1200px;
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .16s ease;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:none;
  box-shadow:0 0 0 3px rgba(29,95,191,.3);
  border-radius:8px;
}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--text);}
h1,h2,h3,h4{margin:0;font-weight:650;letter-spacing:-0.01em;color:var(--text);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
table{border-collapse:collapse;width:100%;}
::selection{background:var(--primary-light);color:var(--primary-dark);}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1600px){ :root{--container:1280px;} }

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-ctrl);
  font-size:15px;
  font-weight:600;
  line-height:1;
  white-space:nowrap;
  transition:transform .16s ease, background-color .16s ease, color .16s ease, box-shadow .16s ease, border-color .16s ease;
}
.btn svg{flex:0 0 auto;}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(242,107,58,.22);}
.btn-accent:hover{background:var(--accent-dark);transform:translateY(-1px);}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);}
.btn-outline{background:#fff;color:var(--primary);border:1px solid var(--primary);}
.btn-outline:hover{background:var(--primary-light);transform:translateY(-1px);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px;}
.btn-lg{height:52px;padding:0 30px;font-size:16px;}
.btn-block{width:100%;}
.btn:disabled,.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14px;font-weight:600;}
.btn-text:hover{color:var(--primary-dark);}
.btn-text svg{transition:transform .18s ease;}
.btn-text:hover svg{transform:translateX(3px);}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  line-height:1;
  background:var(--primary-light);
  color:var(--primary-dark);
}
.badge-accent{background:var(--accent-light);color:var(--accent-dark);}
.badge-muted{background:var(--bg-soft);color:var(--text-2);border:1px solid var(--border);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--border);
  transition:box-shadow .2s ease, background-color .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(17,44,90,.08);background:rgba(255,255,255,.92);}
.header-inner{
  height:var(--nav-h);
  display:flex;
  align-items:center;
  gap:20px;
}
.brand{display:inline-flex;align-items:center;gap:9px;flex:0 0 auto;}
.brand-mark{
  width:30px;height:30px;border-radius:9px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary-light);
  color:var(--primary);
}
.brand-text{font-size:17px;font-weight:700;color:var(--text);letter-spacing:-0.01em;}
.brand:hover .brand-text{color:var(--primary);}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:12px;flex:1 1 auto;}
.nav-link{
  position:relative;
  padding:0 12px;
  height:var(--nav-h);
  display:inline-flex;
  align-items:center;
  font-size:14.5px;
  color:var(--text-2);
  font-weight:500;
}
.nav-link:hover{color:var(--primary);}
.nav-link::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:16px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  opacity:0;
  transform:scaleX(.5);
  transition:opacity .18s ease, transform .18s ease;
}
.nav-link.is-active{color:var(--primary);font-weight:600;}
.nav-link.is-active::after{opacity:1;transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  width:230px;height:38px;
  padding:0 12px;
  border-radius:var(--r-ctrl);
  background:#F2F5FA;
  border:1px solid transparent;
  color:var(--text-3);
  transition:background-color .16s ease,border-color .16s ease,box-shadow .16s ease;
}
.nav-search input{
  border:none;background:transparent;outline:none;width:100%;
  font-size:14px;color:var(--text);
}
.nav-search input::placeholder{color:var(--text-3);}
.nav-search:focus-within{background:#fff;border-color:var(--primary);box-shadow:0 0 0 4px rgba(29,95,191,.12);}
.nav-login{font-size:14px;color:var(--text-2);font-weight:500;padding:0 4px;}
.nav-login:hover{color:var(--primary);}
.nav-toggle{
  display:none;
  width:40px;height:40px;border-radius:var(--r-ctrl);
  align-items:center;justify-content:center;
  color:var(--text);border:1px solid var(--border);background:#fff;
}
.nav-toggle:hover{color:var(--primary);border-color:var(--primary);}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,42,80,.45);
  opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;z-index:120;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);
  background:#fff;z-index:130;
  transform:translateX(102%);
  transition:transform .26s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;
  box-shadow:var(--shadow-3);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line);}
.drawer-close{width:36px;height:36px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;color:var(--text-2);border:1px solid var(--border);}
.drawer-close:hover{color:var(--primary);border-color:var(--primary);}
.drawer-body{padding:14px 20px 20px;overflow-y:auto;flex:1 1 auto;}
.drawer-search{display:flex;align-items:center;gap:8px;height:44px;padding:0 14px;background:#F2F5FA;border-radius:var(--r-ctrl);color:var(--text-3);margin-bottom:12px;}
.drawer-search input{border:none;background:transparent;outline:none;width:100%;font-size:15px;}
.drawer-link{display:flex;align-items:center;justify-content:space-between;height:48px;font-size:15px;color:var(--text-2);border-bottom:1px solid var(--line);}
.drawer-link:hover,.drawer-link.is-active{color:var(--primary);font-weight:600;}
.drawer-actions{display:flex;flex-direction:column;gap:10px;margin-top:18px;}

/* ---------- 面包屑 ---------- */
.crumb-bar{border-bottom:1px solid var(--line);background:var(--bg-soft);}
.crumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:14px 0;font-size:13.5px;color:var(--text-3);}
.crumb a:hover{color:var(--primary);}
.crumb-sep{color:#C6D1E2;}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;
  background:linear-gradient(180deg,var(--primary-xlight),#fff 78%);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.article-hero::before{
  content:"";
  position:absolute;top:-120px;right:-140px;width:520px;height:420px;
  background:radial-gradient(closest-side,rgba(29,95,191,.10),rgba(29,95,191,0) 72%);
  transform:rotate(-8deg);
  pointer-events:none;
}
.article-hero-inner{padding:44px 0 40px;position:relative;z-index:1;max-width:860px;}
.article-h1{
  font-size:38px;
  line-height:1.42;
  font-weight:700;
  max-width:820px;
  margin-top:14px;
}
.article-sub{
  margin-top:14px;
  font-size:16px;
  line-height:1.9;
  color:var(--text-2);
  max-width:760px;
}
.meta-row{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  margin-top:22px;
  font-size:14px;color:var(--text-3);
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#C6D1E2;}

/* ---------- 文章主体布局 ---------- */
.article-main{padding:56px 0 72px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:40px;}
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 240px;gap:48px;}
}
.article-body-shell{max-width:800px;}

.entry{
  font-size:16px;
  line-height:1.92;
  color:var(--text);
}
.entry p{margin:0 0 1.2em;}
.entry h2{
  position:relative;
  font-size:26px;
  line-height:1.5;
  margin:40px 0 16px;
  padding-left:14px;
}
.entry h2::before{
  content:"";
  position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--primary);
}
.entry h3{font-size:19px;font-weight:650;margin:28px 0 12px;}
.entry h4{font-size:17px;font-weight:600;margin:22px 0 10px;color:var(--text-2);}
.entry a{color:var(--primary);border-bottom:1px solid rgba(29,95,191,.35);}
.entry a:hover{color:var(--primary-dark);border-bottom-color:var(--primary-dark);}
.entry strong{font-weight:650;}
.entry ul{margin:0 0 1.3em;padding-left:2px;}
.entry ul li{position:relative;padding-left:18px;margin-bottom:8px;}
.entry ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--primary);
}
.entry ol{margin:0 0 1.3em;padding-left:22px;list-style:decimal;}
.entry ol li{margin-bottom:8px;padding-left:2px;}
.entry blockquote{
  margin:22px 0;
  padding:16px 20px;
  background:var(--primary-xlight);
  border-left:4px solid var(--primary);
  border-radius:0 var(--r-img) var(--r-img) 0;
  color:var(--text-2);
  font-size:15.5px;
}
.entry blockquote p:last-child{margin-bottom:0;}
.entry img{
  width:100%;height:auto;border-radius:var(--r-img);margin:22px auto 12px;
  box-shadow:var(--shadow-1);
}
.entry figure{margin:22px 0;}
.entry figcaption{
  text-align:center;font-size:12px;color:var(--text-3);line-height:1.7;margin-top:10px;
}
.entry table{
  margin:22px 0;font-size:14.5px;border-radius:var(--r-img);overflow:hidden;
}
.entry thead th{
  background:var(--primary-xlight);
  text-align:left;font-weight:650;color:var(--text);font-size:14px;
}
.entry th,.entry td{padding:12px 14px;border-bottom:1px solid var(--line);}
.entry tbody tr:nth-child(even){background:#FAFCFF;}
.entry hr{border:none;border-top:1px solid var(--line);margin:32px 0;}
.entry code{
  background:var(--primary-xlight);border:1px solid var(--border);border-radius:6px;
  padding:1px 6px;font-size:14px;color:var(--primary-dark);
}
.entry .entry-lead{
  font-size:17px;line-height:1.9;color:var(--text-2);
  background:var(--primary-xlight);border:1px solid var(--border);border-radius:var(--r-card);
  padding:18px 20px;margin-bottom:26px;
}

/* 空态 */
.empty-state{
  max-width:640px;
  border:1px solid var(--border);
  border-radius:var(--r-card);
  background:#fff;
  box-shadow:var(--shadow-1);
  padding:44px 32px;
  text-align:center;
}
.empty-icon{
  width:56px;height:56px;border-radius:16px;background:var(--primary-light);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:22px;}

/* ---------- 右侧目录 ---------- */
.toc{
  display:none;
}
@media (min-width:1200px){
  .toc{display:block;}
}
.toc-inner{
  position:sticky;top:calc(var(--nav-h) + 24px);
  border-left:1px solid var(--line);
  padding-left:18px;
  max-height:calc(100vh - 140px);
  overflow-y:auto;
}
.toc-title{font-size:13px;font-weight:650;color:var(--text);letter-spacing:.02em;margin-bottom:12px;}
.toc-list a{
  display:block;
  font-size:13.5px;
  line-height:1.7;
  color:var(--text-3);
  padding:5px 0 5px 12px;
  border-left:2px solid transparent;
  margin-left:-19px;
}
.toc-list a.is-level-3{padding-left:24px;font-size:13px;}
.toc-list a:hover{color:var(--primary);}
.toc-list a.is-active{color:var(--primary);font-weight:600;border-left-color:var(--primary);}
.toc-mobile{display:block;margin-bottom:26px;}
@media (min-width:1200px){ .toc-mobile{display:none;} }
.toc-mobile details{
  border:1px solid var(--border);border-radius:var(--r-card);background:#fff;box-shadow:var(--shadow-1);
  padding:0 18px;
}
.toc-mobile summary{
  cursor:pointer;list-style:none;height:52px;display:flex;align-items:center;justify-content:space-between;
  font-size:14.5px;font-weight:650;color:var(--text);
}
.toc-mobile summary::-webkit-details-marker{display:none;}
.toc-mobile summary::after{content:"＋";color:var(--primary);font-size:16px;}
.toc-mobile details[open] summary::after{content:"－";}
.toc-mobile .toc-list{padding-bottom:14px;border-top:1px solid var(--line);padding-top:10px;}
.toc-mobile .toc-list a{margin-left:0;border-left:none;padding-left:0;}

/* ---------- 标签 ---------- */
.tag-section{padding:10px 0 0;max-width:800px;}
.tag-title{font-size:13px;color:var(--text-3);margin-bottom:10px;}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:999px;background:var(--primary-xlight);border:1px solid var(--border);
  font-size:13px;color:var(--text-2);transition:all .16s ease;
}
.tag:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-light);}

/* ---------- 上下篇 ---------- */
.pager{
  display:grid;grid-template-columns:1fr;gap:14px;
  margin-top:38px;max-width:800px;
}
@media (min-width:768px){ .pager{grid-template-columns:1fr 1fr;} }
.pager-item{
  border:1px solid var(--border);border-radius:var(--r-card);background:#fff;
  box-shadow:var(--shadow-1);padding:18px 20px;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.pager-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#CFDCEF;}
.pager-label{font-size:12px;color:var(--text-3);margin-bottom:8px;display:flex;align-items:center;gap:6px;}
.pager-item h4{font-size:15.5px;line-height:1.6;font-weight:600;color:var(--text);}
.pager-item:hover h4{color:var(--primary);}

/* ---------- 相关推荐 ---------- */
.related{background:var(--bg-soft);border-top:1px solid var(--line);padding:64px 0 72px;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap;}
.sec-head h2{font-size:26px;line-height:1.45;}
.sec-head p{margin-top:8px;font-size:14.5px;color:var(--text-2);}
.card-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:768px){ .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));} }
@media (min-width:1024px){ .card-grid{grid-template-columns:repeat(3,minmax(0,1fr));} }
.post-card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#CFDCEF;}
.post-thumb{position:relative;aspect-ratio:16/9;background:#F2F5FA;overflow:hidden;}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.post-card:hover .post-thumb img{transform:scale(1.04);}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1 1 auto;}
.post-cat{align-self:flex-start;margin-bottom:10px;}
.post-card h3{
  font-size:17px;line-height:1.6;font-weight:650;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card:hover h3{color:var(--primary);}
.post-card p{
  font-size:14px;line-height:1.8;color:var(--text-2);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:12.5px;color:var(--text-3);border-top:1px solid var(--line);padding-top:12px;
}

/* ---------- 文末返回 ---------- */
.back-wrap{display:flex;justify-content:center;padding-top:40px;}

/* ---------- CTA 条 ---------- */
.cta-band{padding:0 0 72px;}
.cta-inner{
  background:rgba(29,95,191,.06);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:36px 32px;
  display:grid;grid-template-columns:1fr;gap:20px;align-items:center;
}
@media (min-width:900px){ .cta-inner{grid-template-columns:1.5fr 1fr;padding:40px 44px;} }
.cta-inner h2{font-size:24px;line-height:1.5;margin-bottom:10px;}
.cta-inner p{font-size:15px;color:var(--text-2);}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
@media (min-width:900px){ .cta-actions{justify-content:flex-end;} }

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:26px;width:48px;height:48px;border-radius:50%;
  background:var(--primary-light);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-1);z-index:80;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease,background-color .2s ease;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--primary);color:#fff;}

/* ---------- 模态 / 抽屉表单 ---------- */
.modal-mask{
  position:fixed;inset:0;background:rgba(15,42,80,.45);
  display:flex;align-items:center;justify-content:center;padding:20px;
  z-index:150;opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;
}
.modal-mask.is-open{opacity:1;visibility:visible;}
.modal{
  width:100%;max-width:560px;background:#fff;border-radius:var(--r-modal);
  box-shadow:var(--shadow-3);padding:28px 28px 26px;
  transform:translateY(12px);transition:transform .24s ease;
  max-height:88vh;overflow-y:auto;
}
.modal-mask.is-open .modal{transform:translateY(0);}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:6px;}
.modal-head h3{font-size:20px;}
.modal-head p{font-size:14px;color:var(--text-2);margin-top:8px;line-height:1.8;}
.modal-close{width:34px;height:34px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;color:var(--text-3);border:1px solid var(--border);flex:0 0 auto;}
.modal-close:hover{color:var(--primary);border-color:var(--primary);}
.field{margin-top:16px;}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--text);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--border);border-radius:var(--r-ctrl);
  background:#fff;padding:11px 14px;line-height:1.6;
  transition:border-color .16s ease,box-shadow .16s ease;
}
.field textarea{min-height:104px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(29,95,191,.12);
}
.field .hint{font-size:12px;color:var(--text-3);margin-top:6px;}
.field .err{font-size:12px;color:var(--danger);margin-top:6px;display:none;}
.field.has-error input,.field.has-error textarea{border-color:var(--danger);}
.field.has-error .err{display:block;}
.check-row{display:flex;align-items:flex-start;gap:10px;margin-top:16px;font-size:13px;color:var(--text-2);line-height:1.7;}
.check-row input{width:16px;height:16px;margin-top:4px;flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--border);padding:56px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:768px){ .footer-grid{grid-template-columns:1.4fr 1fr 1fr;} }
@media (min-width:1024px){ .footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;} }
.footer-brand .brand{margin-bottom:14px;}
.footer-desc{font-size:14px;line-height:1.85;color:var(--text-2);max-width:340px;}
.footer-col h4{font-size:14px;color:var(--primary);font-weight:650;margin-bottom:14px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a,.footer-col ul li span{font-size:14px;color:var(--text-2);}
.footer-col ul li a:hover{color:var(--primary);}
.footer-bottom{
  margin-top:36px;padding-top:18px;border-top:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:var(--text-3);
}
.footer-links{display:flex;gap:18px;flex-wrap:wrap;}
.footer-links a:hover{color:var(--primary);}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .main-nav{margin-left:6px;}
  .nav-link{padding:0 9px;font-size:14px;}
  .nav-search{width:190px;}
}
@media (max-width:1023px){
  .main-nav,.nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-login{display:none;}
  .header-actions .btn-outline{display:none;}
  .article-h1{font-size:32px;}
  .article-hero-inner{padding:34px 0 32px;}
  .article-main{padding:44px 0 56px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .article-h1{font-size:28px;line-height:1.45;}
  .article-sub{font-size:15px;}
  .entry h2{font-size:22px;margin-top:32px;}
  .entry h3{font-size:18px;}
  .sec-head h2{font-size:22px;}
  .cta-inner{padding:28px 22px;}
  .header-actions .btn-accent{display:none;}
  .related{padding:52px 0 60px;}
  .to-top{right:16px;bottom:18px;}
}
@media (max-width:479px){
  .container{padding:0 16px;}
  .article-h1{font-size:25px;}
  .btn{padding:0 18px;}
  .modal{padding:22px 18px;border-radius:16px;}
}

/* roulang page: category3 */
:root{
  --c-primary:#1D5FBF;
  --c-primary-dark:#14498F;
  --c-primary-soft:#E8F0FC;
  --c-primary-tint:#F5F8FD;
  --c-accent:#F26B3A;
  --c-accent-dark:#D8552A;
  --c-accent-soft:#FEEDE5;
  --bg:#FFFFFF;
  --bg-alt:#F6F9FD;
  --card:#FFFFFF;
  --border:#E2E8F3;
  --line:#EDF2F9;
  --t1:#17233A;
  --t2:#5A6B85;
  --t3:#8A99B0;
  --ok:#17936B;
  --warn:#E0A028;
  --err:#D0453F;
  --r-card:16px;
  --r-img:14px;
  --r-input:10px;
  --r-modal:18px;
  --sh-1:0 1px 2px rgba(17,44,90,.04),0 8px 24px rgba(17,44,90,.06);
  --sh-2:0 12px 32px rgba(17,44,90,.12);
  --sh-3:0 24px 64px rgba(17,44,90,.18);
  --sp-section:88px;
  --ease:180ms ease;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--t1);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{font-weight:600;letter-spacing:-0.01em;line-height:1.35;}
p{color:var(--t2);}
:focus-visible{outline:3px solid rgba(29,95,191,.3);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-input);
  border:1px solid transparent;background:transparent;
  font-size:15px;font-weight:600;letter-spacing:0;cursor:pointer;
  transition:transform var(--ease),background-color var(--ease),box-shadow var(--ease),color var(--ease),border-color var(--ease);
  white-space:nowrap;
}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 6px 16px rgba(242,107,58,.22);}
.btn-accent:hover{background:var(--c-accent-dark);transform:translateY(-1px);box-shadow:0 10px 22px rgba(242,107,58,.28);}
.btn-accent:active{transform:translateY(0);}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-dark);transform:translateY(-1px);}
.btn-outline{border-color:var(--c-primary);color:var(--c-primary);background:#fff;}
.btn-outline:hover{background:var(--c-primary-soft);transform:translateY(-1px);}
.btn-ghost{border-color:var(--border);color:var(--t2);background:#fff;}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1;
}
.badge-primary{background:var(--c-primary-soft);color:var(--c-primary);}
.badge-accent{background:var(--c-accent-soft);color:var(--c-accent-dark);}
.badge-neutral{background:var(--bg-alt);color:var(--t2);}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  border:1px solid var(--border);background:#fff;font-size:13px;color:var(--t2);
  transition:var(--ease);
}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-tint);}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--border);
  transition:box-shadow var(--ease),background-color var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(17,44,90,.07);background:rgba(255,255,255,.9);}
.header-inner{display:flex;align-items:center;gap:24px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:28px;height:28px;border-radius:9px;background:var(--c-primary-soft);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
}
.brand-text{font-size:17px;font-weight:700;color:var(--t1);letter-spacing:-.01em;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:68px;padding:0 12px;
  font-size:14.5px;color:var(--t2);transition:color var(--ease);
}
.nav-link:hover{color:var(--c-primary);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:18px;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;width:236px;height:38px;padding:0 12px;
  background:#F2F5FA;border:1px solid transparent;border-radius:var(--r-input);
  color:var(--t3);transition:var(--ease);
}
.nav-search:focus-within{background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(29,95,191,.1);}
.nav-search input{border:0;background:transparent;outline:none;width:100%;font-size:13.5px;color:var(--t1);}
.nav-search input::placeholder{color:var(--t3);}
.nav-login{font-size:14.5px;color:var(--t2);transition:color var(--ease);}
.nav-login:hover{color:var(--c-primary);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--border);
  background:#fff;color:var(--t1);align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}

/* ============ 页面头 / 面包屑 ============ */
.page-hero{
  position:relative;overflow:hidden;background:var(--bg-alt);
  padding:34px 0 64px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(29,95,191,.09),rgba(29,95,191,.02));
  clip-path:polygon(0 0,100% 0,100% 84%,0 100%);
  pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;right:-40px;top:-30px;width:460px;height:100%;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.16;clip-path:polygon(18% 0,100% 0,100% 100%,0 88%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t3);margin-bottom:22px;}
.breadcrumb a{color:var(--t2);transition:color var(--ease);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb span.sep{color:var(--t3);}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:40px;align-items:end;}
.hero-copy h1{font-size:38px;line-height:1.32;margin-bottom:18px;max-width:16em;}
.hero-copy .lead{font-size:16px;line-height:1.9;color:var(--t2);max-width:36em;margin-bottom:26px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.hero-side{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
}
.hero-side h2{font-size:16px;margin-bottom:14px;}
.hero-side ul li{
  display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--t2);
  padding:9px 0;border-bottom:1px dashed var(--line);
}
.hero-side ul li:last-child{border-bottom:0;padding-bottom:0;}
.dot{width:6px;height:6px;border-radius:50%;background:var(--c-primary);margin-top:9px;flex-shrink:0;}

/* ============ 通用板块 ============ */
.section{padding:var(--sp-section) 0;}
.section-alt{background:var(--bg-alt);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:30px;margin-bottom:14px;}
.section-head p{font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--c-primary);background:var(--c-primary-soft);
  height:26px;padding:0 12px;border-radius:999px;margin-bottom:16px;
}

/* ============ 速览条 ============ */
.overview-bar{
  background:rgba(29,95,191,.06);border-radius:var(--r-card);
  display:grid;grid-template-columns:repeat(4,1fr);gap:2px;overflow:hidden;
  border:1px solid rgba(29,95,191,.1);
}
.overview-bar li{padding:24px 22px;background:transparent;}
.overview-bar .ov-k{font-size:13px;color:var(--c-primary);font-weight:600;margin-bottom:6px;}
.overview-bar .ov-t{font-size:15.5px;font-weight:600;color:var(--t1);margin-bottom:6px;}
.overview-bar .ov-d{font-size:13px;color:var(--t2);line-height:1.75;}

/* ============ 时间线 ============ */
.timeline{position:relative;padding:8px 0;}
.timeline::before{
  content:"";position:absolute;left:15px;top:18px;bottom:24px;width:2px;
  background:linear-gradient(180deg,var(--c-primary),rgba(29,95,191,.18));
  border-radius:2px;
}
.tl-item{display:grid;grid-template-columns:32px minmax(0,1fr);gap:24px;padding-bottom:34px;}
.tl-item:last-child{padding-bottom:0;}
.tl-node{
  width:32px;height:32px;border-radius:50%;background:#fff;border:2px solid var(--c-primary);
  color:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;position:relative;z-index:2;font-variant-numeric:tabular-nums;
}
.tl-body{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:24px 26px;box-shadow:var(--sh-1);transition:var(--ease);
}
.tl-body:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D5E1F5;}
.tl-body h3{font-size:19px;margin-bottom:10px;}
.tl-body p{font-size:15px;line-height:1.88;}
.tl-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tl-note{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--c-primary);
  background:var(--c-primary-tint);border:1px solid var(--border);
  border-radius:999px;height:28px;padding:0 14px;
}

/* ============ 双栏准备清单 ============ */
.prep-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.panel{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:30px;box-shadow:var(--sh-1);
}
.panel h3{font-size:20px;margin-bottom:8px;}
.panel .panel-sub{font-size:14px;color:var(--t3);margin-bottom:18px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;padding:12px 0;
  border-bottom:1px solid var(--line);font-size:15px;color:var(--t2);
}
.check-list li:last-child{border-bottom:0;}
.check-ic{
  width:22px;height:22px;border-radius:7px;background:var(--c-primary-soft);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:5px;
  font-size:12px;font-weight:700;
}
.check-ic.warn{background:#FDF3E1;color:var(--warn);}

/* ============ 场景标签带 ============ */
.scene-strip{display:flex;flex-wrap:wrap;gap:12px;}
.scene-card{
  flex:1 1 220px;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);transition:var(--ease);
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D5E1F5;}
.scene-card .sc-ic{
  width:36px;height:36px;border-radius:11px;background:var(--c-primary-soft);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:14px;
}
.scene-card h4{font-size:16.5px;margin-bottom:8px;}
.scene-card p{font-size:14px;line-height:1.8;}

/* ============ 图文区块 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:center;}
.split-media{border-radius:20px;overflow:hidden;box-shadow:var(--sh-1);aspect-ratio:4/3;background:#F2F5FA;}
.split-media img{width:100%;height:100%;object-fit:cover;}
.split h2{font-size:28px;margin-bottom:16px;}
.split p{font-size:15.5px;margin-bottom:14px;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;
  color:var(--c-primary);transition:gap var(--ease),color var(--ease);
}
.text-link:hover{gap:10px;color:var(--c-primary-dark);}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:14px;
  overflow:hidden;transition:box-shadow var(--ease),border-color var(--ease);
}
.faq-item:hover{box-shadow:var(--sh-1);}
.faq-item.is-open{border-color:#CBDBF3;box-shadow:var(--sh-1);}
.faq-q{
  width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:14px 24px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--t1);position:relative;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  background:var(--c-primary);border-radius:0 3px 3px 0;opacity:0;transition:opacity var(--ease);
}
.faq-item.is-open .faq-q::before{opacity:1;}
.faq-sign{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;background:var(--c-primary-soft);
  color:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:600;line-height:1;
}
.faq-a{display:none;padding:0 24px 20px;font-size:15.5px;line-height:1.9;color:var(--t2);}
.faq-item.is-open .faq-a{display:block;}

/* ============ CTA 条 + 表单 ============ */
.cta-band{
  background:rgba(29,95,191,.06);border:1px solid rgba(29,95,191,.12);
  border-radius:20px;padding:40px;
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:36px;align-items:center;
}
.cta-band h2{font-size:26px;margin-bottom:12px;}
.cta-band p{font-size:15.5px;max-width:34em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}

.form-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:34px;box-shadow:var(--sh-1);max-width:760px;
}
.form-card h3{font-size:21px;margin-bottom:8px;}
.form-card .form-sub{font-size:14px;color:var(--t3);margin-bottom:24px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1/-1;}
.field label{font-size:14px;font-weight:600;color:var(--t1);}
.field input,.field select,.field textarea{
  width:100%;min-height:44px;padding:10px 14px;border:1px solid var(--border);
  border-radius:var(--r-input);background:var(--c-primary-tint);font-size:15px;
  color:var(--t1);outline:none;transition:var(--ease);
}
.field textarea{min-height:112px;resize:vertical;line-height:1.8;}
.field input:focus,.field select:focus,.field textarea:focus{
  background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(29,95,191,.12);
}
.field input::placeholder,.field textarea::placeholder{color:var(--t3);}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--t2);line-height:1.7;}
.consent input{width:16px;height:16px;margin-top:5px;accent-color:var(--c-primary);}
.form-actions{margin-top:24px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.form-hint{font-size:13px;color:var(--t3);}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-alt);border-top:1px solid var(--border);padding:56px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:42px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-desc{font-size:14px;line-height:1.85;color:var(--t2);max-width:30em;}
.footer-col h4{font-size:14px;color:var(--c-primary);margin-bottom:16px;letter-spacing:0;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a,.footer-col ul li{font-size:14px;color:var(--t2);transition:color var(--ease);}
.footer-col ul li a:hover{color:var(--c-primary);}
.footer-bottom{
  border-top:1px solid var(--border);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
}
.footer-bottom p{font-size:12px;color:var(--t3);}
.footer-links{display:flex;flex-wrap:wrap;gap:20px;}
.footer-links a{font-size:12px;color:var(--t3);transition:color var(--ease);}
.footer-links a:hover{color:var(--c-primary);}

/* ============ 模态 ============ */
.modal-mask{
  position:fixed;inset:0;background:rgba(15,42,80,.45);z-index:120;
  display:none;align-items:center;justify-content:center;padding:24px;
}
.modal-mask.is-open{display:flex;}
.modal-box{
  width:100%;max-width:560px;background:#fff;border-radius:var(--r-modal);
  box-shadow:var(--sh-3);padding:34px;max-height:88vh;overflow:auto;
  animation:pop 220ms ease;
}
@keyframes pop{from{opacity:0;transform:translateY(14px);}to{opacity:1;transform:none;}}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:8px;}
.modal-head h3{font-size:20px;}
.modal-close{
  width:34px;height:34px;border-radius:10px;border:1px solid var(--border);background:#fff;
  color:var(--t2);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;
  transition:var(--ease);flex-shrink:0;
}
.modal-close:hover{border-color:var(--c-primary);color:var(--c-primary);}
.modal-sub{font-size:14px;color:var(--t3);margin-bottom:22px;}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .header-inner{gap:16px;}
  .nav-link{padding:0 9px;font-size:14px;}
  .nav-search{width:200px;}
}
@media (max-width:1023px){
  :root{--sp-section:64px;}
  .hero-grid{grid-template-columns:1fr;gap:28px;align-items:start;}
  .hero-copy h1{font-size:32px;}
  .overview-bar{grid-template-columns:1fr 1fr;}
  .prep-grid{grid-template-columns:1fr;}
  .split{grid-template-columns:1fr;gap:28px;}
  .cta-band{grid-template-columns:1fr;padding:32px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
  .nav-search{display:none;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .nav-toggle{display:inline-flex;}
  .nav-login,.header-actions .btn-outline{display:none;}
  .main-nav{
    position:fixed;top:68px;right:0;bottom:0;width:80%;max-width:330px;
    background:#fff;flex-direction:column;align-items:stretch;gap:0;margin:0;
    padding:12px 16px 28px;box-shadow:-12px 0 32px rgba(17,44,90,.12);
    transform:translateX(102%);transition:transform 260ms ease;overflow-y:auto;
  }
  body.nav-open .main-nav{transform:translateX(0);}
  .nav-link{height:48px;padding:0 4px;border-bottom:1px solid var(--line);font-size:15px;}
  .nav-link.is-active::after{display:none;}
  .nav-link.is-active{color:var(--c-primary);}
  .page-hero{padding:24px 0 48px;}
  .hero-copy h1{font-size:27px;}
  .section-head h2{font-size:23px;}
  .overview-bar{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .form-grid{grid-template-columns:1fr;}
  .form-card{padding:24px;}
  .modal-mask{padding:0;align-items:flex-end;}
  .modal-box{
    max-width:100%;border-radius:20px 20px 0 0;max-height:88vh;
    animation:sheet 260ms ease;
  }
  @keyframes sheet{from{transform:translateY(100%);}to{transform:none;}}
}
@media (max-width:519px){
  .container{padding:0 16px;}
  .hero-copy h1{font-size:24px;line-height:1.42;}
  .hero-cta .btn{width:100%;}
  .tl-body{padding:20px;}
  .tl-item{gap:16px;}
  .panel{padding:22px;}
  .cta-band{padding:24px;}
  .brand-text{font-size:16px;}
}

/* roulang page: category2 */
:root{
  --primary:#1D5FBF;
  --primary-dark:#14498F;
  --primary-light:#E8F0FC;
  --primary-xlight:#F5F8FD;
  --accent:#F26B3A;
  --accent-light:#FEEDE5;
  --bg:#FFFFFF;
  --bg-alt:#F6F9FD;
  --card:#FFFFFF;
  --border:#E2E8F3;
  --divider:#EDF2F9;
  --text:#17233A;
  --text-2:#5A6B85;
  --text-3:#8A99B0;
  --white:#FFFFFF;
  --success:#17936B;
  --warn:#E0A028;
  --error:#D0453F;
  --radius-card:16px;
  --radius-img:14px;
  --radius-ctl:10px;
  --radius-modal:18px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(17,44,90,.04), 0 8px 24px rgba(17,44,90,.06);
  --shadow-2:0 12px 32px rgba(17,44,90,.12);
  --shadow-3:0 24px 64px rgba(17,44,90,.18);
  --space-section:88px;
  --container:1200px;
  --ease:180ms ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  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 var(--ease),background-color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);}
a:hover{color:var(--primary-dark);}
button{font:inherit;color:inherit;cursor:pointer;}
input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:3px solid rgba(29,95,191,.35);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:var(--space-section) 0;}
.section-alt{background:var(--bg-alt);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{font-size:30px;line-height:1.35;font-weight:700;letter-spacing:-0.01em;}
.section-head p{margin-top:14px;font-size:16px;line-height:1.85;color:var(--text-2);}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.section-head-row h2{font-size:30px;line-height:1.35;font-weight:700;letter-spacing:-0.01em;}
.section-head-row .link-more{font-size:14px;font-weight:600;white-space:nowrap;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-ctl);
  border:1px solid transparent;font-size:15px;font-weight:600;
  cursor:pointer;white-space:nowrap;
  transition:transform var(--ease),background-color var(--ease),box-shadow var(--ease),color var(--ease),border-color var(--ease);
}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(242,107,58,.24);}
.btn-accent:hover{background:#DE5A2A;color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(242,107,58,.3);}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);}
.btn-outline{background:#fff;color:var(--primary);border-color:var(--primary);}
.btn-outline:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--primary);padding:0 4px;height:auto;}
.btn-ghost:hover{color:var(--primary-dark);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px;}
.btn-block{width:100%;}
.btn .arrow{transition:transform var(--ease);}
.btn:hover .arrow{transform:translateX(3px);}

/* 徽章与标签 */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--radius-pill);font-size:12px;font-weight:600;}
.badge-primary{background:var(--primary-light);color:var(--primary);}
.badge-accent{background:var(--accent-light);color:#C6491E;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}
.tag{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--radius-pill);background:#fff;border:1px solid var(--border);font-size:13px;color:var(--text-2);}
.tag:hover{border-color:var(--primary);color:var(--primary);}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:80;background:rgba(255,255,255,.98);
  border-bottom:1px solid var(--border);transition:box-shadow var(--ease),background-color var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(17,44,90,.08);background:rgba(255,255,255,.94);}
.header-inner{display:flex;align-items:center;gap:28px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:700;font-size:17px;letter-spacing:-0.01em;flex:0 0 auto;}
.brand:hover{color:var(--text);}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;
  border-radius:9px;background:var(--primary-light);color:var(--primary);
}
.brand-text{white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:6px;flex:1 1 auto;min-width:0;}
.nav-link{
  position:relative;padding:10px 12px;font-size:15px;color:var(--text-2);font-weight:500;white-space:nowrap;
}
.nav-link:hover{color:var(--primary);}
.nav-link.is-active{color:var(--text);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--primary);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;width:230px;height:38px;padding:0 12px;
  background:#F2F5FA;border:1px solid transparent;border-radius:var(--radius-ctl);color:var(--text-3);
  transition:background-color var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.nav-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px;color:var(--text);}
.nav-search input::placeholder{color:var(--text-3);}
.nav-search:focus-within{background:#fff;border-color:var(--primary);box-shadow:0 0 0 4px rgba(29,95,191,.12);}
.nav-login{font-size:14px;color:var(--text-2);font-weight:500;padding:6px 4px;}
.nav-login:hover{color:var(--primary);}
.nav-toggle{
  display:none;align-items:center;justify-content:center;width:40px;height:40px;
  border:1px solid var(--border);border-radius:10px;background:#fff;color:var(--text);
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary);}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,42,80,.45);opacity:0;visibility:hidden;
  transition:opacity var(--ease),visibility var(--ease);z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);background:#fff;z-index:95;
  transform:translateX(102%);transition:transform 240ms ease;padding:20px;overflow-y:auto;
  box-shadow:var(--shadow-3);
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--border);background:#fff;}
.drawer-search{display:flex;align-items:center;gap:8px;height:42px;padding:0 12px;background:#F2F5FA;border-radius:var(--radius-ctl);margin-bottom:16px;color:var(--text-3);}
.drawer-search input{flex:1;border:0;background:transparent;outline:none;font-size:14px;color:var(--text);}
.drawer-nav a{
  display:flex;align-items:center;min-height:48px;padding:0 6px;font-size:15px;color:var(--text-2);
  border-bottom:1px solid var(--divider);
}
.drawer-nav a:hover{color:var(--primary);}
.drawer-nav a.is-active{color:var(--primary);font-weight:600;}
.drawer-cta{display:flex;flex-direction:column;gap:10px;margin-top:20px;}

/* 面包屑 */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb span.sep{color:#C3CEDD;}

/* 分类页窄版 Hero */
.cat-hero{
  position:relative;overflow:hidden;padding:56px 0 64px;
  background:
    linear-gradient(115deg, rgba(29,95,191,.09) 0%, rgba(29,95,191,.09) 42%, rgba(255,255,255,0) 42.2%),
    linear-gradient(180deg,#F7FAFE 0%, #FFFFFF 100%);
  border-bottom:1px solid var(--divider);
}
.cat-hero::after{
  content:"";position:absolute;right:-40px;top:0;bottom:0;width:44%;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;opacity:.16;pointer-events:none;
  border-top-left-radius:60px;border-bottom-left-radius:60px;
}
.cat-hero .container{position:relative;z-index:2;}
.cat-hero-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:48px;align-items:center;margin-top:22px;}
.cat-hero h1{
  font-size:40px;line-height:1.28;font-weight:700;letter-spacing:-0.01em;max-width:660px;margin-top:16px;
}
.cat-hero .lede{margin-top:18px;font-size:16px;line-height:1.9;color:var(--text-2);max-width:620px;}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.cat-hero-mini{display:flex;flex-wrap:wrap;gap:22px;margin-top:26px;font-size:14px;color:var(--text-2);}
.cat-hero-mini li{display:flex;align-items:center;gap:8px;}
.cat-hero-mini svg{color:var(--primary);flex:0 0 auto;}
.hero-figure{
  background:#fff;border:1px solid var(--border);border-radius:20px;padding:14px;box-shadow:var(--shadow-1);
}
.hero-figure .thumb{border-radius:var(--radius-img);overflow:hidden;aspect-ratio:4/3;background:#F2F5FA;}
.hero-figure .thumb img{width:100%;height:100%;object-fit:cover;}
.hero-figure .cap{font-size:13px;color:var(--text-3);margin-top:12px;line-height:1.6;}

/* 双列宽卡网格 */
.card-grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.wide-card{
  position:relative;background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:28px 28px 24px;box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.wide-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--primary);
  transform:scaleX(0);transform-origin:left;transition:transform 220ms ease;
}
.wide-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D3DEEE;}
.wide-card:hover::before{transform:scaleX(1);}
.wide-card .icon{
  display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:13px;
  background:var(--primary-light);color:var(--primary);margin-bottom:18px;
}
.wide-card h3{font-size:22px;line-height:1.4;font-weight:600;letter-spacing:-0.01em;}
.wide-card p{margin-top:12px;font-size:15px;line-height:1.85;color:var(--text-2);}
.wide-card .card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:22px;padding-top:16px;border-top:1px solid var(--divider);
}
.wide-card .card-foot .meta{font-size:13px;color:var(--text-3);}
.wide-card .card-foot .go{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);}
.wide-card .card-foot .go:hover{gap:10px;color:var(--primary-dark);}
.wide-card .card-media{margin-top:20px;border-radius:var(--radius-img);overflow:hidden;aspect-ratio:16/9;background:#F2F5FA;}
.wide-card .card-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease;}
.wide-card:hover .card-media img{transform:scale(1.03);}

/* 序号列表 */
.split{display:grid;grid-template-columns:1fr 1.25fr;gap:56px;align-items:start;}
.split h2{font-size:30px;line-height:1.35;font-weight:700;letter-spacing:-0.01em;}
.split .split-sub{margin-top:16px;font-size:16px;line-height:1.9;color:var(--text-2);}
.num-list{border-top:1px solid var(--border);}
.num-item{display:flex;gap:18px;padding:22px 0;border-bottom:1px solid var(--border);}
.num-badge{
  flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:var(--radius-pill);
  background:var(--primary-light);color:var(--primary);font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.num-item h4{font-size:16px;font-weight:600;color:var(--primary);line-height:1.5;}
.num-item p{margin-top:8px;font-size:14px;line-height:1.8;color:var(--text-2);}

/* 数据条 */
.stat-bar{
  background:rgba(29,95,191,.06);border-radius:var(--radius-card);padding:32px 28px;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;
}
.stat-item{text-align:left;}
.stat-item .num{font-size:34px;line-height:1.1;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;}
.stat-item .unit{font-size:14px;color:var(--text-2);margin-left:6px;}
.stat-item .label{display:block;margin-top:10px;font-size:14px;font-weight:600;color:var(--text);}
.stat-item .desc{display:block;margin-top:6px;font-size:13px;line-height:1.7;color:var(--text-3);}

/* 时间线步骤 */
.steps{position:relative;padding-left:36px;}
.steps::before{content:"";position:absolute;left:11px;top:8px;bottom:8px;width:2px;background:var(--primary-light);}
.step{position:relative;padding-bottom:30px;}
.step:last-child{padding-bottom:0;}
.step::before{
  content:"";position:absolute;left:-36px;top:4px;width:24px;height:24px;border-radius:var(--radius-pill);
  background:#fff;border:2px solid var(--primary);
}
.step::after{
  content:"";position:absolute;left:-28px;top:12px;width:8px;height:8px;border-radius:var(--radius-pill);background:var(--primary);
}
.step h3{font-size:18px;font-weight:600;line-height:1.5;}
.step p{margin-top:8px;font-size:15px;line-height:1.85;color:var(--text-2);}

/* 清单 */
.check-list li{
  display:flex;gap:12px;align-items:flex-start;padding:14px 0;border-bottom:1px dashed var(--divider);
  font-size:15px;line-height:1.8;color:var(--text-2);
}
.check-list li:last-child{border-bottom:0;}
.check-list .ck{
  flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;
  border-radius:7px;background:var(--primary-light);color:var(--primary);margin-top:3px;
}
.check-list strong{color:var(--text);font-weight:600;}

/* 图文区块 */
.media-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.media-row .media{border-radius:var(--radius-img);overflow:hidden;aspect-ratio:16/10;background:#F2F5FA;box-shadow:var(--shadow-1);}
.media-row .media img{width:100%;height:100%;object-fit:cover;}
.media-row h3{font-size:22px;font-weight:600;line-height:1.4;}
.media-row p{margin-top:14px;font-size:15px;line-height:1.9;color:var(--text-2);}
.media-row .go{display:inline-flex;align-items:center;gap:6px;margin-top:18px;font-size:14px;font-weight:600;}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:14px;overflow:hidden;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 22px;background:transparent;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);
}
.faq-q:hover{color:var(--primary);}
.faq-sign{
  flex:0 0 auto;position:relative;width:20px;height:20px;color:var(--primary);
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;transition:transform 200ms ease,opacity 200ms ease;
}
.faq-sign::before{left:0;right:0;top:9px;height:2px;}
.faq-sign::after{top:0;bottom:0;left:9px;width:2px;}
.faq-item.is-open{border-color:#CBD9EE;box-shadow:var(--shadow-1);}
.faq-item.is-open .faq-sign::after{transform:scaleY(0);opacity:0;}
.faq-panel{
  max-height:0;overflow:hidden;transition:max-height 260ms ease;
  border-left:3px solid transparent;
}
.faq-item.is-open .faq-panel{border-left-color:var(--primary);}
.faq-panel .inner{padding:0 22px 20px 22px;font-size:16px;line-height:1.9;color:var(--text-2);}

/* CTA 条 */
.cta-band{
  background:rgba(29,95,191,.06);border:1px solid #DCE7F7;border-radius:20px;
  padding:40px;display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band h2{font-size:26px;line-height:1.4;font-weight:700;letter-spacing:-0.01em;}
.cta-band p{margin-top:12px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:640px;}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex:0 0 auto;}

/* 表单 */
.form-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:32px;box-shadow:var(--shadow-1);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:14px;font-weight:600;color:var(--text);}
.field .hint{font-size:12px;color:var(--text-3);}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--border);border-radius:var(--radius-ctl);
  padding:12px 14px;font-size:15px;background:#fff;outline:none;
  transition:border-color var(--ease),box-shadow var(--ease),background-color var(--ease);
}
.field textarea{min-height:112px;resize:vertical;line-height:1.8;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--primary);box-shadow:0 0 0 4px rgba(29,95,191,.14);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--error);}
.field .err{font-size:12px;color:var(--error);display:none;}
.field.has-error .err{display:block;}
.checkbox-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;line-height:1.7;color:var(--text-2);}
.checkbox-row input{width:16px;height:16px;margin-top:3px;flex:0 0 auto;}
.form-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:24px;}
.form-note{font-size:13px;color:var(--text-3);}

/* 信任条 */
.trust-band{
  background:var(--bg-alt);border-top:1px solid var(--border);border-bottom:1px solid var(--border);
}
.trust-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:28px 0;flex-wrap:wrap;}
.trust-inner p{font-size:14px;line-height:1.9;color:var(--text-2);max-width:760px;}
.trust-icons{display:flex;gap:18px;color:var(--primary);}

/* 模态与底部弹层 */
.modal-mask{
  position:fixed;inset:0;background:rgba(15,42,80,.45);z-index:120;
  display:flex;align-items:center;justify-content:center;padding:24px;
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
}
.modal-mask.is-open{opacity:1;visibility:visible;}
.modal{
  width:100%;max-width:560px;background:#fff;border-radius:var(--radius-modal);
  box-shadow:var(--shadow-3);padding:32px;max-height:86vh;overflow-y:auto;
  transform:translateY(10px);transition:transform 220ms ease;
}
.modal-mask.is-open .modal{transform:translateY(0);}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:8px;}
.modal-head h2{font-size:22px;font-weight:700;line-height:1.4;}
.modal-head p{margin-top:8px;font-size:14px;line-height:1.8;color:var(--text-2);}
.modal-close{
  flex:0 0 auto;width:36px;height:36px;border-radius:10px;border:1px solid var(--border);background:#fff;color:var(--text-2);
}
.modal-close:hover{border-color:var(--primary);color:var(--primary);}
.modal .form-grid{margin-top:20px;}

/* 页脚 */
.site-footer{background:var(--bg-alt);border-top:1px solid var(--border);padding:56px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-desc{font-size:14px;line-height:1.9;color:var(--text-2);max-width:340px;}
.footer-col h4{font-size:14px;font-weight:600;color:var(--primary);margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:var(--text-2);}
.footer-col a:hover{color:var(--primary);}
.footer-col li{font-size:14px;color:var(--text-2);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  border-top:1px solid var(--border);padding:20px 0 28px;
}
.footer-bottom p{font-size:12px;color:var(--text-3);}
.footer-links{display:flex;gap:20px;}
.footer-links a{font-size:12px;color:var(--text-3);}
.footer-links a:hover{color:var(--primary);}

/* 响应式 */
@media (max-width:1279px){
  :root{--container:1140px;}
  .cat-hero h1{font-size:36px;}
}
@media (max-width:1023px){
  :root{--space-section:64px;}
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-search{display:none;}
  .cat-hero-grid{grid-template-columns:1fr;gap:32px;}
  .cat-hero::after{width:60%;opacity:.12;}
  .split{grid-template-columns:1fr;gap:32px;}
  .stat-bar{grid-template-columns:repeat(2,minmax(0,1fr));}
  .media-row{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px;}
}
@media (max-width:767px){
  :root{--space-section:48px;}
  .container{padding:0 20px;}
  .header-inner{gap:14px;height:64px;}
  .nav-login{display:none;}
  .header-actions .btn-outline{display:none;}
  .cat-hero{padding:36px 0 44px;}
  .cat-hero h1{font-size:28px;line-height:1.38;}
  .cat-hero .lede{font-size:15px;}
  .section-head h2,.section-head-row h2,.split h2{font-size:24px;}
  .card-grid-2{grid-template-columns:1fr;}
  .wide-card{padding:22px;}
  .wide-card h3{font-size:20px;}
  .form-grid{grid-template-columns:1fr;}
  .stat-bar{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;padding:24px 20px;}
  .stat-item .num{font-size:28px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .cta-band{padding:26px 20px;border-radius:16px;}
  .cta-band h2{font-size:22px;}
  .modal-mask{padding:0;align-items:flex-end;}
  .modal{max-width:100%;border-radius:20px 20px 0 0;max-height:88vh;padding:24px 20px 28px;transform:translateY(24px);}
}
@media (max-width:479px){
  .cat-hero-mini{gap:12px;flex-direction:column;}
  .breadcrumb{font-size:12px;}
  .btn{width:100%;}
  .cat-hero-actions .btn,.cta-actions .btn{width:100%;}
}

/* roulang page: category4 */
/* ============ 设计令牌 ============ */
:root{
  --brand:#1D5FBF;
  --brand-dark:#14498F;
  --brand-soft:#E8F0FC;
  --brand-tint:#F5F8FD;
  --accent:#F26B3A;
  --accent-dark:#D9552A;
  --accent-soft:#FEEDE5;
  --bg:#FFFFFF;
  --bg-alt:#F6F9FD;
  --card:#FFFFFF;
  --border:#E2E8F3;
  --line:#EDF2F9;
  --text:#17233A;
  --text-2:#5A6B85;
  --text-3:#8A99B0;
  --ok:#17936B;
  --warn:#E0A028;
  --err:#D0453F;
  --radius-card:16px;
  --radius-img:14px;
  --radius-btn:10px;
  --radius-modal:18px;
  --shadow-1:0 1px 2px rgba(17,44,90,.04),0 8px 24px rgba(17,44,90,.06);
  --shadow-2:0 12px 32px rgba(17,44,90,.12);
  --shadow-3:0 24px 64px rgba(17,44,90,.18);
  --ring:0 0 0 3px rgba(29,95,191,.30);
  --container:1200px;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:none;box-shadow:var(--ring);border-radius:6px;}
::selection{background:var(--brand-soft);color:var(--brand-dark);}

/* ============ 容器与通用 ============ */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:88px 0;}
.section-alt{background:var(--bg-alt);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{font-size:30px;line-height:1.35;font-weight:700;letter-spacing:-.01em;margin-bottom:14px;}
.section-head p{font-size:16px;line-height:1.85;color:var(--text-2);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand);
  background:var(--brand-soft);border-radius:999px;
  padding:5px 14px;margin-bottom:18px;
}
.section-sub{font-size:15px;line-height:1.85;color:var(--text-2);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn:focus-visible{box-shadow:var(--ring);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(242,107,58,.22);}
.btn-accent:hover{background:var(--accent-dark);transform:translateY(-1px);}
.btn-accent:active{transform:translateY(0);}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-outline:hover{background:var(--brand-soft);transform:translateY(-1px);}
.btn-ghost{color:var(--brand);padding:0 6px;height:auto;font-weight:600;}
.btn-ghost:hover{color:var(--brand-dark);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px;}
.btn-lg{height:50px;padding:0 30px;font-size:16px;}
.btn-block{width:100%;}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;}

/* ============ 徽章与标签 ============ */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:999px;font-size:12px;font-weight:600;line-height:1;
}
.badge-brand{background:var(--brand-soft);color:var(--brand);}
.badge-accent{background:var(--accent-soft);color:var(--accent-dark);}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border-radius:999px;background:var(--bg-alt);color:var(--text-2);
  font-size:13px;border:1px solid var(--border);
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:#fff;border-bottom:1px solid var(--border);
  transition:box-shadow .2s ease,background-color .2s ease;
}
.site-header.is-scrolled{
  box-shadow:0 6px 20px rgba(17,44,90,.07);
  background:rgba(255,255,255,.96);
}
.header-inner{
  display:flex;align-items:center;gap:24px;height:68px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:28px;height:28px;border-radius:9px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);
  transition:background-color .18s ease,color .18s ease;
}
.brand:hover .brand-mark{background:var(--brand);color:#fff;}
.brand-text{font-size:18px;font-weight:700;letter-spacing:-.01em;color:var(--text);}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  height:68px;padding:0 12px;font-size:15px;color:var(--text-2);
  transition:color .15s ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:16px;
  width:0;height:2px;border-radius:2px;background:var(--brand);
  transform:translateX(-50%);transition:width .2s ease;
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after{width:16px;}
.nav-link.is-active{color:var(--brand);font-weight:600;}
.nav-link.is-active::after{width:24px;}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;width:230px;height:38px;
  padding:0 12px;background:#F2F5FA;border:1px solid transparent;
  border-radius:var(--radius-btn);color:var(--text-3);
  transition:background-color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.nav-search:focus-within{background:#fff;border-color:var(--brand);box-shadow:0 0 0 4px rgba(29,95,191,.12);}
.nav-search input{
  flex:1;min-width:0;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--text);
}
.nav-search input::placeholder{color:var(--text-3);}
.nav-login{font-size:14px;color:var(--text-2);transition:color .15s ease;}
.nav-login:hover{color:var(--brand);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  align-items:center;justify-content:center;color:var(--text-2);
  border:1px solid var(--border);background:#fff;
  transition:color .15s ease,border-color .15s ease;
}
.nav-toggle:hover{color:var(--brand);border-color:var(--brand);}

/* 移动抽屉 */
.mobile-drawer{
  display:none;position:fixed;inset:68px 0 0 auto;width:84%;max-width:340px;
  background:#fff;border-left:1px solid var(--border);
  box-shadow:-12px 0 40px rgba(17,44,90,.14);
  padding:20px;overflow-y:auto;z-index:130;
  transform:translateX(100%);transition:transform .24s ease;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-search{
  display:flex;align-items:center;gap:8px;height:42px;padding:0 12px;
  background:#F2F5FA;border-radius:var(--radius-btn);color:var(--text-3);margin-bottom:16px;
}
.drawer-search input{flex:1;border:0;background:transparent;outline:none;font-size:14px;}
.drawer-nav a{
  display:flex;align-items:center;height:48px;font-size:15px;color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--brand);font-weight:600;}
.drawer-actions{display:flex;flex-direction:column;gap:12px;margin-top:20px;}
.drawer-mask{
  display:none;position:fixed;inset:68px 0 0 0;
  background:rgba(15,42,80,.35);z-index:125;
}
.drawer-mask.is-open{display:block;}

/* ============ 页面 Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:52px 0 68px;
  background:linear-gradient(180deg,#F5F8FD 0%,#FFFFFF 100%);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:rgba(29,95,191,.06);
  clip-path:polygon(0 0,100% 0,100% 58%,0 86%);
  pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;right:-4%;top:-18%;width:46%;height:130%;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity:.14;border-radius:0 0 0 40px;pointer-events:none;
}
.page-hero .container{position:relative;z-index:1;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:22px;
}
.breadcrumb a{color:var(--text-2);transition:color .15s ease;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb span[aria-hidden]{color:var(--text-3);}
.hero-copy{max-width:760px;}
.hero-copy h1{
  font-size:40px;line-height:1.28;font-weight:700;letter-spacing:-.01em;
  margin:14px 0 18px;
}
.hero-copy .lead{
  font-size:17px;line-height:1.9;color:var(--text-2);max-width:660px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;
  font-size:13.5px;color:var(--text-3);
}
.hero-meta span{display:inline-flex;align-items:center;gap:7px;}
.hero-meta svg{color:var(--brand);flex-shrink:0;}

/* ============ 清单 + FAQ 混合布局 ============ */
.faq-layout{
  display:grid;grid-template-columns:5fr 7fr;gap:52px;align-items:start;
}
.checklist-col h2{font-size:26px;line-height:1.4;font-weight:700;margin-bottom:12px;}
.checklist-col .section-sub{margin-bottom:26px;}
.check-list li{
  display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--line);
}
.check-list li:first-child{padding-top:0;}
.check-list li:last-child{border-bottom:0;}
.check-icon{
  flex-shrink:0;width:34px;height:34px;border-radius:10px;
  background:var(--brand-soft);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
}
.check-list h3{font-size:16px;font-weight:600;margin-bottom:6px;}
.check-list p{font-size:14px;line-height:1.8;color:var(--text-2);}
.checklist-figure{
  margin:28px 0 0;border-radius:var(--radius-img);overflow:hidden;
  border:1px solid var(--border);box-shadow:var(--shadow-1);
}
.checklist-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.checklist-figure figcaption{
  padding:12px 16px;font-size:12.5px;color:var(--text-3);background:#fff;
  border-top:1px solid var(--line);
}

.faq-col h2{font-size:26px;line-height:1.4;font-weight:700;margin-bottom:12px;}
.faq-col .section-sub{margin-bottom:26px;}
.faq-item{
  position:relative;overflow:hidden;background:#fff;
  border:1px solid var(--border);border-radius:14px;
  box-shadow:var(--shadow-1);margin-bottom:12px;
  transition:box-shadow .18s ease,border-color .18s ease;
}
.faq-item:hover{box-shadow:var(--shadow-2);}
.faq-item.is-open::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);
}
.faq-item.is-open{border-color:#CFDDF4;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:14px 22px;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);line-height:1.6;
  transition:color .15s ease;
}
.faq-q:hover{color:var(--brand);}
.faq-q .faq-mark{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;
  background:var(--bg-alt);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:600;line-height:1;transition:background-color .18s ease,transform .2s ease;
}
.faq-item.is-open .faq-mark{background:var(--brand-soft);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a-inner{
  padding:0 22px 20px;font-size:15.5px;line-height:1.92;color:var(--text-2);
  border-top:1px dashed var(--line);padding-top:16px;margin:0 0 0;
}
.faq-a-inner p + p{margin-top:12px;}

/* ============ 主题查找列表 ============ */
.topic-list{
  display:grid;grid-template-columns:1fr 1fr;gap:16px 24px;
}
.topic-item{
  display:flex;gap:14px;padding:20px;background:#fff;
  border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.topic-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#CFDDF4;}
.topic-item .topic-num{
  flex-shrink:0;width:36px;height:36px;border-radius:10px;
  background:var(--brand-tint);border:1px solid var(--border);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
}
.topic-item h3{font-size:16.5px;font-weight:600;margin-bottom:6px;}
.topic-item p{font-size:14px;line-height:1.8;color:var(--text-2);}
.topic-item a.more{
  display:inline-flex;align-items:center;gap:6px;margin-top:10px;
  font-size:14px;font-weight:600;color:var(--brand);
}
.topic-item a.more:hover{color:var(--brand-dark);gap:9px;}
.topic-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}

/* ============ 准备说明 + 表格 ============ */
.prepare-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:48px;align-items:start;}
.prepare-grid h2{font-size:28px;line-height:1.4;font-weight:700;margin-bottom:14px;}
.prepare-grid .section-sub{margin-bottom:22px;}
.mini-list li{
  display:flex;gap:10px;font-size:15px;color:var(--text-2);line-height:1.85;
  padding:8px 0;
}
.mini-list li::before{
  content:"";flex-shrink:0;width:6px;height:6px;border-radius:50%;
  background:var(--brand);margin-top:11px;
}
.table-wrap{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;
}
table.data-table{width:100%;border-collapse:collapse;font-size:14.5px;}
.data-table caption{
  text-align:left;padding:18px 22px 4px;font-size:15px;font-weight:600;color:var(--text);
}
.data-table th,.data-table td{
  padding:14px 18px;text-align:left;vertical-align:top;line-height:1.75;
}
.data-table thead th{
  background:var(--brand-tint);color:var(--brand);font-weight:600;
  border-bottom:1px solid var(--border);font-size:14px;
}
.data-table tbody tr{border-bottom:1px solid var(--line);}
.data-table tbody tr:nth-child(even){background:#FAFCFF;}
.data-table tbody tr:last-child{border-bottom:0;}
.data-table td:first-child{font-weight:600;color:var(--text);white-space:nowrap;}
.data-table td{color:var(--text-2);}

/* ============ 原则条 ============ */
.principle-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  background:rgba(29,95,191,.06);
  border:1px solid #DDE8F8;
  border-radius:var(--radius-card);
  padding:32px;
}
.principle-item{display:flex;flex-direction:column;gap:10px;}
.principle-item .pi-icon{
  width:38px;height:38px;border-radius:11px;background:#fff;color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-1);
}
.principle-item h3{font-size:16px;font-weight:600;}
.principle-item p{font-size:13.5px;line-height:1.8;color:var(--text-2);}

/* ============ 底部 CTA ============ */
.cta-band{padding:0 0 88px;}
.cta-box{
  background:rgba(29,95,191,.06);
  border:1px solid #DDE8F8;
  border-radius:20px;
  padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-box h2{font-size:28px;line-height:1.4;font-weight:700;margin-bottom:12px;}
.cta-box p{font-size:15.5px;line-height:1.85;color:var(--text-2);max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-alt);border-top:1px solid var(--border);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-desc{font-size:14px;line-height:1.9;color:var(--text-2);max-width:340px;}
.footer-col h4{font-size:14px;font-weight:600;color:var(--brand);margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a,.footer-col ul li{
  font-size:14px;color:var(--text-2);line-height:1.8;
}
.footer-col ul a{transition:color .15s ease;}
.footer-col ul a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid var(--border);
  padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:var(--text-3);
}
.footer-links{display:flex;gap:18px;}
.footer-links a{color:var(--text-3);transition:color .15s ease;}
.footer-links a:hover{color:var(--brand);}

/* ============ 弹层 ============ */
.modal{position:fixed;inset:0;z-index:200;display:none;}
.modal.is-open{display:block;}
.modal-mask{position:absolute;inset:0;background:rgba(15,42,80,.45);}
.modal-dialog{
  position:relative;z-index:1;width:calc(100% - 40px);max-width:560px;
  margin:6vh auto;background:#fff;border-radius:var(--radius-modal);
  box-shadow:var(--shadow-3);padding:32px;max-height:86vh;overflow-y:auto;
  animation:modalIn .22s ease;
}
@keyframes modalIn{from{opacity:0;transform:translateY(12px);}to{opacity:1;transform:none;}}
.modal-dialog h3{font-size:22px;font-weight:700;margin-bottom:10px;}
.modal-dialog .modal-sub{font-size:14px;line-height:1.8;color:var(--text-2);margin-bottom:22px;}
.modal-close{
  position:absolute;top:16px;right:16px;width:36px;height:36px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--text-3);background:var(--bg-alt);transition:color .15s ease,background-color .15s ease;
}
.modal-close:hover{color:var(--brand);background:var(--brand-soft);}

/* ============ 表单 ============ */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px;}
.field label{font-size:13.5px;font-weight:600;color:var(--text);}
.field .req{color:var(--accent);}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--border);border-radius:var(--radius-btn);
  background:#fff;padding:11px 14px;font-size:14.5px;color:var(--text);
  transition:border-color .16s ease,box-shadow .16s ease;
}
.field input{height:44px;}
.field textarea{min-height:104px;resize:vertical;line-height:1.75;}
.field select{height:44px;appearance:none;background-image:linear-gradient(45deg,transparent 50%,#8A99B0 50%),linear-gradient(135deg,#8A99B0 50%,transparent 50%);background-position:calc(100% - 20px) 19px,calc(100% - 15px) 19px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(29,95,191,.14);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--err);}
.field .err-text{display:none;font-size:12px;color:var(--err);}
.field.has-error .err-text{display:block;}
.checkbox-row{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--text-2);line-height:1.7;margin-bottom:20px;}
.checkbox-row input{width:16px;height:16px;margin-top:3px;accent-color:var(--brand);flex-shrink:0;}
.form-note{font-size:12.5px;color:var(--text-3);margin-top:12px;text-align:center;}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--container:1140px;}
  .faq-layout{gap:40px;}
  .principle-bar{gap:20px;padding:28px;}
}
@media (max-width:1023px){
  .section{padding:64px 0;}
  .container{padding:0 20px;}
  .hero-copy h1{font-size:32px;}
  .section-head h2,.cta-box h2{font-size:26px;}
  .faq-layout{grid-template-columns:1fr;gap:44px;}
  .prepare-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .topic-list{grid-template-columns:1fr;}
  .principle-bar{grid-template-columns:1fr 1fr;}
  .cta-box{padding:36px;}
}
@media (max-width:767px){
  .section{padding:48px 0;}
  .container{padding:0 16px;}
  .main-nav,.nav-search,.nav-login,.header-actions .btn-outline{display:none;}
  .nav-toggle{display:inline-flex;}
  .mobile-drawer{display:block;}
  .page-hero{padding:36px 0 48px;}
  .page-hero::after{width:70%;opacity:.10;}
  .hero-copy h1{font-size:28px;line-height:1.36;}
  .hero-copy .lead{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .cta-band{padding:0 0 56px;}
  .cta-box{padding:28px;}
  .cta-box h2{font-size:23px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .faq-q{font-size:15.5px;padding:14px 18px;}
  .faq-a-inner{padding:14px 18px 18px;}
  .form-grid{grid-template-columns:1fr;}
  .modal-dialog{
    position:absolute;left:0;right:0;bottom:0;top:auto;
    width:100%;max-width:none;margin:0;max-height:88vh;
    border-radius:20px 20px 0 0;padding:26px 20px 30px;
    animation:sheetUp .26s ease;
  }
  @keyframes sheetUp{from{transform:translateY(24px);opacity:.6;}to{transform:none;opacity:1;}}
  .data-table th,.data-table td{padding:12px 14px;}
  .data-table td:first-child{white-space:normal;}
}
@media (max-width:520px){
  .hero-copy h1{font-size:26px;}
  .section-head h2,.checklist-col h2,.faq-col h2{font-size:22px;}
  .prepare-grid h2{font-size:22px;}
  .principle-bar{grid-template-columns:1fr;padding:24px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (min-width:1600px){
  :root{--container:1280px;}
}