/* roulang page: index */
:root{
  --brand:#0F63A8;
  --brand-dark:#0B4B7F;
  --brand-light:#E8F2FA;
  --accent:#F2721F;
  --green:#12A17A;
  --bg:#F5F8FB;
  --card:#FFFFFF;
  --line:#E4ECF3;
  --text:#17293A;
  --text-2:#5A7086;
  --text-3:#8A9CAF;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(16,42,67,.04), 0 12px 28px -14px rgba(16,42,67,.14);
  --shadow-2:0 20px 40px -18px rgba(16,42,67,.20);
  --shadow-nav:0 8px 30px rgba(16,42,67,.10);
  --mono:"IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --bs-body-color:#17293A;
  --bs-body-bg:#F5F8FB;
  --bs-link-color:#0F63A8;
  --bs-link-hover-color:#0B4B7F;
  --bs-border-color:#E4ECF3;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--bs-body-font-family);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease, background-color .2s ease, border-color .2s ease;}
a:hover{color:var(--brand-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

.container{max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 24px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;line-height:1.2;border:1px solid transparent;
  cursor:pointer;transition:transform .2s ease, box-shadow .2s ease, background-color .2s ease, color .2s ease, border-color .2s ease;
  text-align:center;
}
.btn:active{transform:translateY(0);}
.btn-brand{background:var(--brand);color:#fff;box-shadow:0 10px 22px -12px rgba(15,99,168,.75);}
.btn-brand:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 16px 30px -14px rgba(15,99,168,.8);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 22px -12px rgba(242,114,31,.8);}
.btn-accent:hover{background:#d95f12;color:#fff;transform:translateY(-1px);box-shadow:0 16px 30px -14px rgba(242,114,31,.85);}
.btn-ghost{background:#fff;color:var(--brand);border-color:#CFE1F0;}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);border-color:#B9D5EB;transform:translateY(-1px);}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ 悬浮胶囊导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  padding:16px 0 8px;
}
.pill-nav{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:64px;padding:8px 12px 8px 20px;
  background:rgba(255,255,255,.9);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  box-shadow:var(--shadow-nav);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand:hover{color:var(--brand-dark);}
.brand-mark{
  width:36px;height:36px;border-radius:12px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand) 0%,#1E86CE 100%);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:16px;
  box-shadow:0 8px 18px -10px rgba(15,99,168,.9);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:16px;font-weight:700;color:var(--text);letter-spacing:.2px;}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:1.6px;font-family:var(--mono);}

.nav-links{display:flex;align-items:center;gap:4px;flex-wrap:nowrap;}
.nav-links a{
  display:inline-flex;align-items:center;
  padding:9px 16px;border-radius:var(--radius-pill);
  font-size:15px;color:var(--text-2);font-weight:500;white-space:nowrap;
}
.nav-links a:hover{background:var(--brand-light);color:var(--brand);}
.nav-links a.active{background:var(--brand-light);color:var(--brand);font-weight:600;}
.nav-cta{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--brand);
  align-items:center;justify-content:center;font-size:17px;cursor:pointer;
}
.nav-toggle:hover{background:var(--brand-light);}

.nav-drawer{
  position:fixed;top:0;right:0;height:100%;width:290px;max-width:86vw;
  background:#fff;border-left:1px solid var(--line);
  box-shadow:-16px 0 40px rgba(16,42,67,.14);
  transform:translateX(102%);transition:transform .28s ease;
  z-index:1060;padding:22px 0;display:flex;flex-direction:column;
}
.nav-drawer.open{transform:translateX(0);}
.nav-drawer__head{display:flex;align-items:center;justify-content:space-between;padding:0 20px 16px;border-bottom:1px solid var(--line);}
.nav-drawer__title{font-size:15px;font-weight:700;color:var(--text);}
.nav-drawer__close{width:38px;height:38px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--text-2);cursor:pointer;}
.nav-drawer__close:hover{background:var(--brand-light);color:var(--brand);}
.nav-drawer nav{display:flex;flex-direction:column;padding:8px 0;overflow-y:auto;}
.nav-drawer nav a{
  padding:0 20px;height:52px;display:flex;align-items:center;
  font-size:15px;color:var(--text);border-bottom:1px solid var(--line);
}
.nav-drawer nav a:hover,.nav-drawer nav a.active{background:var(--brand-light);color:var(--brand);}
.nav-drawer__foot{padding:18px 20px 0;margin-top:auto;}
.nav-backdrop{
  position:fixed;inset:0;background:rgba(13,33,52,.45);
  opacity:0;visibility:hidden;transition:opacity .25s ease;z-index:1050;
}
.nav-backdrop.show{opacity:1;visibility:visible;}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--white{background:#fff;}
.section--soft{background:linear-gradient(180deg,#EFF6FC 0%,#F5F8FB 100%);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:12px;letter-spacing:1.4px;
  color:var(--brand);background:var(--brand-light);
  padding:6px 14px;border-radius:var(--radius-pill);margin-bottom:16px;
}
.section-title{
  position:relative;font-size:clamp(24px,3vw,30px);font-weight:700;
  letter-spacing:-.3px;color:var(--text);padding-left:16px;line-height:1.4;
}
.section-title::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:1.05em;
  border-radius:4px;background:var(--brand);
}
.section-title--plain{padding-left:0;}
.section-title--plain::before{display:none;}
.section-sub{margin-top:14px;color:var(--text-2);font-size:16px;line-height:1.8;}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:56px 0 84px;
  background:linear-gradient(180deg,#F2F8FD 0%,#F5F8FB 70%);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(circle at 1px 1px, rgba(15,99,168,.16) 1px, transparent 0);
  background-size:26px 26px;opacity:.55;pointer-events:none;
}
.hero .container{position:relative;z-index:1;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-pill);
  padding:7px 16px;font-size:13px;color:var(--brand);font-weight:600;
  box-shadow:var(--shadow-1);margin-bottom:20px;
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--green);}
.hero h1{
  font-size:clamp(28px,4.2vw,44px);line-height:1.28;font-weight:700;
  letter-spacing:-.6px;color:var(--text);margin-bottom:18px;
}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero-lead{font-size:18px;line-height:1.8;color:var(--text-2);max-width:560px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-trust{display:flex;flex-wrap:wrap;gap:12px 26px;}
.hero-trust span{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2);}
.hero-trust i{color:var(--green);font-size:13px;}

.hero-visual{position:relative;padding:0 12px 26px 0;}
.hero-visual__img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-lg);box-shadow:var(--shadow-1);border:1px solid var(--line);
}
.float-card{
  position:absolute;background:rgba(255,255,255,.96);
  border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow-2);padding:14px 18px;
  display:flex;flex-direction:column;gap:2px;min-width:132px;
}
.float-card .n{font-family:var(--mono);font-size:24px;font-weight:600;color:var(--brand);line-height:1.15;}
.float-card .n small{font-size:13px;color:var(--text-3);margin-left:3px;}
.float-card .l{font-size:12px;color:var(--text-2);}
.float-card--a{left:-8px;bottom:64px;}
.float-card--b{right:0;bottom:6px;}
.float-card--b .n{color:var(--accent);}

/* ============ 痛点提问卡 ============ */
.ask-card{
  background:#fff;border:1px solid var(--line);border-left:3px solid #BFDCF1;
  border-radius:14px;padding:22px 22px 20px;height:100%;
  box-shadow:var(--shadow-1);transition:transform .2s ease, box-shadow .2s ease, border-left-color .2s ease;
}
.ask-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-left-color:var(--brand);}
.ask-card .qi{
  width:36px;height:36px;border-radius:50%;background:var(--brand-light);
  color:var(--brand);display:flex;align-items:center;justify-content:center;
  font-size:15px;margin-bottom:14px;
}
.ask-card h3{font-size:17px;font-weight:600;color:var(--text);margin-bottom:8px;line-height:1.5;}
.ask-card p{font-size:14px;line-height:1.7;color:var(--text-2);}

/* ============ 方案卡 ============ */
.solution-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px;height:100%;box-shadow:var(--shadow-1);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .2s ease, box-shadow .2s ease;
}
.solution-card::after{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;
  background:linear-gradient(90deg,var(--brand),#45A3DE);
  opacity:0;transition:opacity .2s ease;
}
.solution-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.solution-card:hover::after{opacity:1;}
.solution-card--main{padding:30px;}
.solution-icon{
  width:40px;height:40px;border-radius:50%;background:var(--brand-light);
  color:var(--brand);display:flex;align-items:center;justify-content:center;
  font-size:16px;margin-bottom:16px;
}
.solution-card h3{font-size:21px;font-weight:700;color:var(--text);margin-bottom:12px;line-height:1.45;}
.solution-card p{font-size:15px;line-height:1.8;color:var(--text-2);margin-bottom:16px;}
.solution-cover{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-md);margin-bottom:20px;}
.check-list{margin:0 0 18px;}
.check-list li{position:relative;padding-left:22px;font-size:14.5px;line-height:1.9;color:var(--text-2);}
.check-list li::before{
  content:"";position:absolute;left:4px;top:.72em;width:6px;height:6px;
  border-radius:50%;background:var(--brand);
}
.text-link{font-size:14.5px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;margin-top:auto;}
.text-link:hover{gap:9px;}

/* ============ 数据区 ============ */
.stat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px;height:100%;box-shadow:var(--shadow-1);text-align:center;
}
.stat-card .num{
  font-family:var(--mono);font-size:clamp(30px,4vw,42px);font-weight:600;
  color:var(--brand);line-height:1.1;letter-spacing:-1px;
}
.stat-card .num small{font-size:15px;font-weight:500;color:var(--text-3);margin-left:4px;letter-spacing:0;}
.stat-card .cap{font-size:13px;color:var(--text-2);margin-top:8px;}
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border-top:1px solid var(--line);margin-top:28px;
}
.stat-strip div{padding:16px 12px 0;border-left:1px solid var(--line);}
.stat-strip div:first-child{border-left:0;padding-left:0;}
.stat-strip .t{font-family:var(--mono);font-size:14px;color:var(--brand-dark);font-weight:600;}
.stat-strip .d{font-size:13px;color:var(--text-2);margin-top:2px;}

.case-card{
  display:flex;gap:26px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px;box-shadow:var(--shadow-1);
}
.case-card__img{width:38%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-md);flex:0 0 auto;}
.case-card h3{font-size:19px;font-weight:700;margin-bottom:10px;color:var(--text);}
.case-card p{font-size:14.5px;line-height:1.8;color:var(--text-2);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tag{
  display:inline-flex;align-items:center;font-size:12.5px;color:var(--brand);
  background:var(--brand-light);border-radius:var(--radius-pill);padding:5px 12px;
}

/* ============ CMS 资讯列表 ============ */
.news-card{
  display:flex;flex-direction:column;height:100%;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-1);color:inherit;
  transition:transform .2s ease, box-shadow .2s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);color:inherit;}
.news-card__media{position:relative;aspect-ratio:16/9;background:var(--brand-light);overflow:hidden;}
.news-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.news-card:hover .news-card__media img{transform:scale(1.03);}
.news-card__body{padding:22px;display:flex;flex-direction:column;flex:1 1 auto;}
.news-badge{
  align-self:flex-start;font-size:12px;font-weight:600;color:var(--brand);
  background:var(--brand-light);border-radius:var(--radius-pill);
  padding:4px 12px;margin-bottom:12px;
}
.news-card__title{
  font-size:17px;font-weight:600;color:var(--text);line-height:1.55;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__desc{
  font-size:14px;line-height:1.7;color:var(--text-2);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__foot{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  border-top:1px solid var(--line);padding-top:14px;margin-top:auto;
}
.news-card__foot time{font-family:var(--mono);font-size:12.5px;color:var(--text-3);}
.news-card__foot .read{font-size:13.5px;font-weight:600;color:var(--brand);}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  min-height:180px;gap:10px;text-align:center;
  background:#fff;border:1px dashed #C7DAEA;border-radius:var(--radius-lg);padding:28px;
}
.empty-state i{font-size:26px;color:#9CC0DC;}
.empty-state p{font-size:15px;color:var(--text-2);}
.section-more{margin-top:34px;text-align:center;}

/* ============ 表单 ============ */
.form-block{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px;box-shadow:var(--shadow-1);
}
.form-block h3{font-size:20px;font-weight:700;margin-bottom:8px;color:var(--text);}
.form-block .form-note{font-size:14px;color:var(--text-2);margin-bottom:22px;line-height:1.75;}
.lead-form .field{margin-bottom:16px;}
.lead-form label{display:block;font-size:13.5px;font-weight:600;color:var(--text);margin-bottom:7px;}
.lead-form label .req{color:var(--accent);margin-left:3px;}
.lead-form input,.lead-form textarea,.lead-form select{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:var(--radius-md);
  background:#FBFDFF;color:var(--text);font-size:15px;line-height:1.6;
  transition:border-color .2s ease, box-shadow .2s ease, background-color .2s ease;
}
.lead-form textarea{min-height:104px;resize:vertical;}
.lead-form input:hover,.lead-form textarea:hover,.lead-form select:hover{border-color:#C7DAEA;}
.lead-form input:focus,.lead-form textarea:focus,.lead-form select:focus{
  outline:none;border-color:var(--brand);background:#fff;
  box-shadow:0 0 0 3px rgba(15,99,168,.14);
}
.privacy-note{font-size:13px;color:var(--text-3);line-height:1.7;margin-top:12px;}
.privacy-note a{color:var(--text-2);border-bottom:1px dashed #C7DAEA;}
.privacy-note a:hover{color:var(--brand);border-bottom-style:solid;}

.cta-panel{
  display:flex;gap:34px;align-items:center;
  background:linear-gradient(135deg,#0F63A8 0%,#1478C4 100%);
  border-radius:20px;padding:40px;color:#fff;position:relative;overflow:hidden;
}
.cta-panel::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;
  border-radius:50%;border:34px solid rgba(255,255,255,.08);
}
.cta-panel h2{font-size:clamp(22px,2.6vw,28px);font-weight:700;margin-bottom:12px;line-height:1.45;}
.cta-panel p{font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.88);max-width:520px;}
.cta-panel__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:22px;}

/* ============ FAQ ============ */
.faq-accordion .accordion-item{
  border:1px solid var(--line);border-radius:14px;overflow:hidden;
  margin-bottom:12px;background:#fff;box-shadow:var(--shadow-1);
}
.faq-accordion .accordion-item:last-child{margin-bottom:0;}
.faq-accordion .accordion-button{
  font-size:16px;font-weight:600;color:var(--text);background:#fff;
  padding:18px 22px;box-shadow:none;line-height:1.6;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--brand);background:var(--brand-light);}
.faq-accordion .accordion-button:focus{box-shadow:0 0 0 2px rgba(15,99,168,.3);z-index:2;}
.faq-accordion .accordion-button::after{
  width:16px;height:16px;background-size:16px;background-image:none;
  content:"\002B";font-family:inherit;font-size:18px;font-weight:400;color:var(--brand);
  display:flex;align-items:center;justify-content:center;transform:none;line-height:1;
}
.faq-accordion .accordion-button:not(.collapsed)::after{content:"\2212";transform:none;}
.faq-accordion .accordion-body{
  font-size:15px;line-height:1.85;color:var(--text-2);
  padding:16px 22px 20px;border-left:3px solid var(--brand);
}

/* ============ 页脚 ============ */
.site-footer{background:#EEF4F9;border-top:1px solid var(--line);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px;}
.footer-brand .brand-text .brand-name{font-size:16px;}
.footer-desc{font-size:14px;line-height:1.85;color:var(--text-2);margin-top:16px;max-width:320px;}
.footer-col h4{font-size:15px;font-weight:700;color:var(--text);margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:14px;color:var(--text-2);}
.footer-col ul li a:hover{color:var(--brand);}
.footer-meta{font-size:14px;line-height:1.9;color:var(--text-2);}
.footer-meta strong{color:var(--text);font-weight:600;}
.footer-bottom{
  border-top:1px solid #DCE7F0;padding:20px 0;
  display:flex;flex-wrap:wrap;gap:10px 20px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--brand);}

/* ============ 弹层 ============ */
.modal-content{border:none;border-radius:18px;box-shadow:var(--shadow-2);}
.modal-header{border-bottom:1px solid var(--line);padding:20px 24px;}
.modal-title{font-size:18px;font-weight:700;color:var(--text);}
.modal-body{padding:22px 24px 26px;}
.modal-backdrop.show{opacity:.45;}
.modal-close{
  width:36px;height:36px;border-radius:50%;border:1px solid var(--line);
  background:#fff;color:var(--text-2);display:flex;align-items:center;justify-content:center;
  cursor:pointer;transition:background-color .2s ease,color .2s ease;
}
.modal-close:hover{background:var(--brand-light);color:var(--brand);}
.modal .lead-form input,.modal .lead-form textarea{background:#FBFDFF;}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
  .footer-grid .footer-col:last-child{grid-column:1 / -1;}
}
@media (max-width:991.98px){
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .pill-nav{padding:8px 10px 8px 16px;}
  .section{padding:64px 0;}
  .section--tight{padding:52px 0;}
  .hero{padding:40px 0 64px;}
  .hero-visual{margin-top:38px;padding:0 0 26px;}
  .cta-panel{flex-direction:column;align-items:flex-start;padding:32px;}
  .case-card{flex-direction:column;align-items:flex-start;}
  .case-card__img{width:100%;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .stat-strip div:nth-child(3){border-left:0;padding-left:0;}
}
@media (max-width:767.98px){
  .section{padding:48px 0;}
  .section-head{margin-bottom:32px;}
  .hero h1{font-size:clamp(26px,7vw,32px);}
  .hero-lead{font-size:16.5px;}
  .hero-actions .btn{flex:1 1 auto;}
  .float-card{padding:12px 14px;min-width:118px;}
  .float-card .n{font-size:20px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;padding-bottom:32px;}
  .form-block{padding:22px;}
}
@media (max-width:575.98px){
  body{font-size:15.5px;}
  .container{padding-left:16px;padding-right:16px;}
  .brand-sub{display:none;}
  .hero{padding:30px 0 52px;}
  .hero-actions{flex-direction:column;}
  .hero-actions .btn{width:100%;}
  .float-card--a{left:-4px;bottom:52px;}
  .float-card--b{right:-4px;}
  .stat-strip{grid-template-columns:1fr;}
  .stat-strip div{border-left:0;padding-left:0;padding-top:14px;border-top:1px solid var(--line);}
  .stat-strip div:first-child{border-top:0;padding-top:0;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-panel{padding:26px 22px;}
  .news-card__body{padding:18px;}
}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --brand:#0F63A8;
  --brand-dark:#0B4B7F;
  --brand-light:#E8F2FA;
  --accent:#F2721F;
  --accent-dark:#D75F12;
  --green:#12A17A;
  --bg:#F5F8FB;
  --surface:#FFFFFF;
  --line:#E4ECF3;
  --text:#17293A;
  --muted:#5A7086;
  --weak:#8A9CAF;
  --soft:#EEF4F9;
  --radius-card:16px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(16,42,67,.04), 0 12px 28px -14px rgba(16,42,67,.14);
  --shadow-2:0 20px 40px -18px rgba(16,42,67,.20);
  --shadow-nav:0 8px 30px rgba(16,42,67,.10);
  --font-body:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-mono:"IBM Plex Mono",Inter,ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --bs-link-color:var(--brand);
  --bs-link-hover-color:var(--brand-dark);
  --bs-body-font-family:var(--font-body);
  --bs-body-color:var(--text);
  --bs-border-color:var(--line);
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--text);line-height:1.32;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--surface);color:var(--brand);padding:10px 18px;border-radius:0 0 12px 0;z-index:2000;}
.skip-link:focus{left:0;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1040;
  padding:14px 0;
  background:linear-gradient(180deg,rgba(245,248,251,.94) 55%,rgba(245,248,251,0) 100%);
}
.pill-nav{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:64px;
  padding:8px 12px 8px 22px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border:1px solid var(--line);
  box-shadow:var(--shadow-nav);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;
  display:grid;place-items:center;
  border-radius:12px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#fff;font-size:16px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:16px;font-weight:700;color:var(--text);letter-spacing:0;}
.brand-sub{font-size:10px;letter-spacing:.16em;color:var(--weak);font-family:var(--font-mono);}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{
  display:inline-flex;align-items:center;
  padding:9px 14px;border-radius:var(--radius-pill);
  font-size:14.5px;color:var(--muted);
  transition:background .2s ease,color .2s ease;
  white-space:nowrap;
}
.nav-links a:hover{background:var(--brand-light);color:var(--brand);}
.nav-links a.active{background:var(--brand-light);color:var(--brand);font-weight:600;}
.nav-cta{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;height:44px;align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--surface);
  color:var(--brand);border-radius:50%;font-size:17px;cursor:pointer;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;
  border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 22px -12px rgba(242,114,31,.75);}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -12px rgba(242,114,31,.8);}
.btn-accent:active{transform:translateY(0);}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px -14px rgba(15,99,168,.85);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:var(--surface);color:var(--brand);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--brand);background:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px);}
.btn-text{background:none;border:none;padding:0;color:var(--brand);font-weight:600;min-height:auto;}
.btn-text:hover{color:var(--brand-dark);}
.btn-block{width:100%;}
.btn[disabled],.btn:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section-soft{background:linear-gradient(180deg,#EEF4F9 0%,#F5F8FB 100%);}
.section-head{max-width:760px;margin-bottom:40px;}
.sec-index{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:13px;letter-spacing:.12em;
  color:var(--brand);font-weight:600;margin-bottom:14px;
}
.sec-index::before{content:"";width:26px;height:2px;background:var(--accent);border-radius:2px;}
.section-title{font-size:clamp(24px,2.4vw,31px);margin-bottom:14px;}
.section-lead{color:var(--muted);font-size:16px;margin:0;}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--radius-pill);
  background:var(--brand-light);color:var(--brand);
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.badge-accent{background:rgba(242,114,31,.12);color:var(--accent-dark);}
.badge-green{background:rgba(18,161,122,.12);color:#0D7F60;}

/* ============ 分类页头 ============ */
.page-hero{
  position:relative;
  padding:44px 0 76px;
  background-image:linear-gradient(180deg,rgba(232,242,250,.7) 0%,rgba(245,248,251,.95) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(15,99,168,.16) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.5;
  pointer-events:none;
}
.hero-grid{
  position:relative;z-index:1;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:48px;
  align-items:center;
}
.hero-copy h1{
  font-size:clamp(28px,3.5vw,44px);
  line-height:1.24;
  margin:18px 0 16px;
  padding-left:16px;
  border-left:4px solid var(--accent);
}
.hero-sub{font-size:18px;color:var(--muted);max-width:560px;margin-bottom:24px;}
.hero-intro p{color:var(--muted);font-size:15.5px;margin-bottom:14px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 22px;}
.trust-row{
  display:flex;flex-wrap:wrap;gap:10px 22px;
  padding-top:20px;border-top:1px solid var(--line);
  font-size:13.5px;color:var(--muted);
}
.trust-row span{display:inline-flex;align-items:center;gap:7px;}
.trust-row i{color:var(--green);font-size:13px;}

.hero-visual{position:relative;}
.hero-media{
  position:relative;
  border-radius:20px;
  overflow:hidden;
  box-shadow:var(--shadow-2);
  border:1px solid rgba(255,255,255,.7);
}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover;transition:transform .4s ease;}
.hero-media:hover img{transform:scale(1.03);}
.hero-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,75,127,.05) 0%,rgba(11,75,127,.42) 100%);
}
.hero-media-cap{
  position:absolute;left:20px;bottom:18px;right:20px;z-index:2;
  color:#fff;font-size:13.5px;letter-spacing:.02em;
}
.float-card{
  position:absolute;z-index:3;
  background:rgba(255,255,255,.96);
  border:1px solid var(--line);
  border-radius:14px;
  padding:12px 16px;
  box-shadow:var(--shadow-1);
  min-width:132px;
}
.float-card .fc-num{
  font-family:var(--font-mono);font-size:22px;font-weight:600;color:var(--brand);line-height:1.2;
}
.float-card .fc-label{font-size:12px;color:var(--weak);}
.float-a{top:22px;right:-14px;}
.float-b{
  bottom:-18px;left:-14px;
}
.float-b .fc-num{color:var(--accent);}

/* ============ 场景提问卡 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.scene-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-left:3px solid var(--brand-light);
  border-radius:var(--radius-card);
  padding:24px;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-left-color:var(--brand);}
.scene-icon{
  width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--brand-light);color:var(--brand);
  font-size:16px;margin-bottom:16px;
}
.scene-card h3{font-size:19px;margin-bottom:10px;}
.scene-card p{font-size:14.5px;color:var(--muted);line-height:1.7;margin:0;}

/* ============ 导览分栏 ============ */
.guide-layout{
  display:grid;
  grid-template-columns:minmax(0,1.65fr) minmax(0,1fr);
  gap:40px;
  align-items:start;
}
.guide-list{display:flex;flex-direction:column;gap:20px;}
.guide-item{
  display:grid;
  grid-template-columns:auto 168px 1fr;
  gap:20px;
  align-items:center;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:20px;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.guide-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.guide-num{
  font-family:var(--font-mono);
  font-size:26px;font-weight:600;
  color:var(--brand-light);
  -webkit-text-stroke:1px var(--brand);
  letter-spacing:.02em;
  align-self:start;
  padding-top:4px;
}
.guide-thumb{
  border-radius:var(--radius-img);
  overflow:hidden;
  border:1px solid var(--line);
}
.guide-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease;}
.guide-item:hover .guide-thumb img{transform:scale(1.05);}
.guide-body h3{font-size:20px;margin-bottom:10px;}
.guide-body p{font-size:14.5px;color:var(--muted);line-height:1.7;margin-bottom:12px;}
.guide-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 11px;border-radius:var(--radius-pill);
  background:var(--brand-light);color:var(--brand);
  font-size:12.5px;font-weight:600;
}
.tag-accent{background:rgba(242,114,31,.12);color:var(--accent-dark);}
.guide-link{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.guide-link i{font-size:12px;transition:transform .2s ease;}
.guide-link:hover i{transform:translateX(3px);}

/* ============ 侧栏 ============ */
.side-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:22px;}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px;
  box-shadow:var(--shadow-1);
}
.side-card h3{font-size:18px;margin-bottom:6px;}
.side-card .side-note{font-size:13.5px;color:var(--weak);margin-bottom:18px;}
.quick-links{display:flex;flex-direction:column;}
.quick-links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 0;
  border-bottom:1px dashed var(--line);
  font-size:14.5px;color:var(--text);
  transition:color .2s ease,padding-left .2s ease;
}
.quick-links li:last-child a{border-bottom:none;}
.quick-links a:hover{color:var(--brand);padding-left:5px;}
.quick-links i{color:var(--weak);font-size:12px;}
.quick-links a:hover i{color:var(--brand);}

/* ============ 表单 ============ */
.field{margin-bottom:14px;}
.field label{
  display:block;font-size:13.5px;font-weight:600;color:var(--muted);
  margin-bottom:7px;
}
.field .req{color:var(--accent);margin-left:2px;}
.field input,.field select,.field textarea{
  width:100%;
  padding:11px 14px;
  border:1px solid var(--line);
  border-radius:var(--radius-img);
  background:#FBFDFF;
  color:var(--text);
  font-size:14.5px;
  font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{min-height:88px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--brand);
  background:#fff;
  box-shadow:0 0 0 3px rgba(15,99,168,.14);
}
.field input::placeholder,.field textarea::placeholder{color:var(--weak);}
.form-note{
  margin-top:12px;
  font-size:13px;
  line-height:1.65;
  color:var(--weak);
}
.form-note a{color:var(--muted);text-decoration:underline dotted;text-underline-offset:3px;}
.form-note a:hover{color:var(--brand);text-decoration:underline solid;}

/* ============ 数据条 ============ */
.stats-band{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.stat-card{
  padding:30px 26px;
  border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);
  transition:background .2s ease;
}
.stat-card:last-child{border-right:none;}
.stat-card:hover{background:#FBFDFF;}
.stat-num{
  font-family:var(--font-mono);
  font-size:clamp(30px,3vw,42px);
  font-weight:600;
  color:var(--brand-dark);
  line-height:1.1;
  display:flex;align-items:baseline;gap:6px;
}
.stat-unit{font-size:14px;color:var(--weak);font-family:var(--font-body);font-weight:500;}
.stat-label{font-size:14.5px;font-weight:600;margin:12px 0 6px;}
.stat-desc{font-size:13px;color:var(--weak);line-height:1.65;margin:0;}
.stat-card:nth-child(2) .stat-num{color:var(--accent);}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:14px;
  margin-bottom:14px;
  overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item:hover{box-shadow:var(--shadow-1);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;
  background:none;border:none;text-align:left;
  font-size:16px;font-weight:700;color:var(--text);
  cursor:pointer;
}
.faq-q .faq-mark{
  flex:0 0 30px;
  width:30px;height:30px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--brand-light);color:var(--brand);
  font-size:13px;
  transition:transform .25s ease,background .25s ease,color .25s ease;
}
.faq-q[aria-expanded="true"]{color:var(--brand-dark);}
.faq-q[aria-expanded="true"] .faq-mark{background:var(--brand);color:#fff;transform:rotate(180deg);}
.faq-a{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--muted);border-left:3px solid transparent;}
.faq-item.open{border-color:rgba(15,99,168,.35);}
.faq-item.open .faq-a{border-left-color:var(--brand);padding-left:21px;}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  display:grid;
  grid-template-columns:1.25fr .95fr;
  gap:44px;
  align-items:center;
  padding:52px;
  border-radius:24px;
  background:linear-gradient(120deg,#0B4B7F 0%,#0F63A8 62%,#1273BE 100%);
  color:#fff;
  overflow:hidden;
  box-shadow:var(--shadow-2);
}
.cta-band::after{
  content:"";
  position:absolute;right:-70px;bottom:-70px;
  width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(242,114,31,.32) 0%,rgba(242,114,31,0) 70%);
}
.cta-band h2{color:#fff;font-size:clamp(23px,2.4vw,30px);margin-bottom:14px;}
.cta-band p{color:rgba(255,255,255,.82);font-size:15.5px;max-width:540px;}
.cta-list{display:flex;flex-direction:column;gap:10px;margin:22px 0 0;}
.cta-list li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:rgba(255,255,255,.9);}
.cta-list i{color:#7FD4B6;margin-top:5px;font-size:12px;}
.cta-panel{
  position:relative;z-index:2;
  background:rgba(255,255,255,.97);
  border-radius:18px;
  padding:26px;
  color:var(--text);
  box-shadow:0 24px 48px -24px rgba(6,32,54,.6);
}
.cta-panel h3{font-size:18px;margin-bottom:8px;}
.cta-panel p{color:var(--muted);font-size:13.5px;margin-bottom:18px;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--soft);
  border-top:1px solid var(--line);
  padding:64px 0 26px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:36px;
  border-bottom:1px solid var(--line);
}
.footer-brand .brand{margin-bottom:16px;}
.footer-desc{font-size:14px;color:var(--muted);line-height:1.75;max-width:340px;margin:0;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text);}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul a{font-size:14px;color:var(--muted);}
.footer-col ul a:hover{color:var(--brand);}
.footer-meta{font-size:13.5px;color:var(--muted);line-height:1.9;margin:0;}
.footer-meta strong{color:var(--text);font-weight:600;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  align-items:center;
  padding-top:22px;
  font-size:13px;
  color:var(--weak);
}
.footer-bottom a{color:var(--muted);}
.footer-bottom a:hover{color:var(--brand);}

/* ============ 弹层 ============ */
.modal-content{
  border:none;
  border-radius:20px;
  overflow:hidden;
  box-shadow:0 30px 70px -30px rgba(6,32,54,.6);
}
.modal-body{padding:30px;position:relative;}
.modal-head h3{font-size:21px;margin-bottom:8px;}
.modal-head p{font-size:14px;color:var(--muted);margin-bottom:22px;}
.modal-close{
  position:absolute;top:16px;right:16px;
  width:36px;height:36px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--muted);
  display:grid;place-items:center;cursor:pointer;font-size:14px;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.modal-close:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-light);}
.modal-backdrop.show{opacity:.45;}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .section{padding:72px 0;}
  .scene-grid{grid-template-columns:repeat(2,1fr);}
  .guide-layout{grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:30px;}
  .guide-item{grid-template-columns:auto 148px 1fr;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;row-gap:32px;}
}
@media (max-width:991.98px){
  .nav-links{
    position:fixed;
    top:0;right:0;
    width:min(84vw,340px);
    height:100vh;
    height:100dvh;
    padding:84px 22px 32px;
    background:#fff;
    border-left:1px solid var(--line);
    box-shadow:-16px 0 44px -22px rgba(16,42,67,.35);
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    transform:translateX(105%);
    transition:transform .28s ease;
    z-index:1060;
    overflow-y:auto;
  }
  .nav-links.open{transform:translateX(0);}
  .nav-links a{
    border-radius:12px;
    padding:14px 16px;
    font-size:15.5px;
    min-height:52px;
    border-bottom:1px solid var(--line);
  }
  .nav-links a:last-child{border-bottom:none;}
  .nav-toggle{display:inline-flex;}
  .nav-cta .btn-accent{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero-copy h1{border-left-width:4px;}
  .float-a{right:10px;}
  .float-b{left:10px;}
  .guide-layout{grid-template-columns:1fr;}
  .side-sticky{position:static;}
  .stats-band{grid-template-columns:repeat(2,1fr);}
  .stat-card:nth-child(2){border-right:none;}
  .cta-band{grid-template-columns:1fr;padding:40px 30px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767.98px){
  body{font-size:15.5px;}
  .section{padding:56px 0;}
  .page-hero{padding:26px 0 56px;}
  .scene-grid{grid-template-columns:1fr;}
  .guide-item{grid-template-columns:auto 1fr;gap:14px 16px;}
  .guide-thumb{grid-column:1 / -1;grid-row:2;}
  .guide-body{grid-column:1 / -1;}
  .guide-num{grid-row:1;}
  .hero-actions .btn{flex:1 1 100%;}
  .trust-row{gap:10px 16px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575.98px){
  .container{padding:0 16px;}
  .pill-nav{padding:7px 10px 7px 14px;min-height:58px;}
  .brand-name{font-size:14.5px;}
  .brand-sub{font-size:9px;letter-spacing:.12em;}
  .brand-mark{width:34px;height:34px;flex:0 0 34px;font-size:14px;}
  .hero-copy h1{padding-left:12px;font-size:28px;}
  .hero-sub{font-size:16px;}
  .scene-card,.side-card,.cta-panel{padding:20px;}
  .stat-card{padding:22px 18px;}
  .stats-band{grid-template-columns:1fr;}
  .stat-card{border-right:none;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .cta-band{padding:30px 20px;border-radius:18px;}
  .faq-q{padding:16px 18px;font-size:15px;}
  .faq-a{padding:0 18px 18px;}
  .modal-body{padding:24px 20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --c-primary:#0F63A8;
  --c-primary-deep:#0B4B7F;
  --c-primary-soft:#E8F2FA;
  --c-accent:#F2721F;
  --c-success:#12A17A;
  --c-bg:#F5F8FB;
  --c-surface:#FFFFFF;
  --c-line:#E4ECF3;
  --c-text:#17293A;
  --c-muted:#5A7086;
  --c-weak:#8A9CAF;
  --c-footer:#EEF4F9;
  --r-card:16px;
  --r-img:12px;
  --r-input:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,42,67,.04),0 12px 28px -14px rgba(16,42,67,.14);
  --sh-2:0 20px 40px -18px rgba(16,42,67,.20);
  --sh-nav:0 8px 30px rgba(16,42,67,.10);
  --sp-section:88px;
  --mono:"IBM Plex Mono","Inter",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --bs-body-color:#17293A;
  --bs-body-bg:#F5F8FB;
  --bs-link-color:#0F63A8;
  --bs-link-hover-color:#0B4B7F;
  --bs-border-color:#E4ECF3;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{margin:0;font-family:var(--bs-body-font-family);font-size:16px;line-height:1.75;color:var(--c-text);background:var(--c-bg);-webkit-font-smoothing:antialiased;}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-deep);}
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;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.narrow{max-width:860px;margin:0 auto;}
.section{padding:var(--sp-section) 0;}
.section-head{margin-bottom:36px;max-width:760px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:12px;letter-spacing:.18em;color:var(--c-weak);text-transform:uppercase;}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--c-accent);border-radius:2px;}
.section-title{font-size:clamp(24px,3vw,30px);font-weight:700;letter-spacing:-.4px;color:var(--c-primary-deep);margin-top:12px;line-height:1.35;}
.section-sub{margin-top:12px;font-size:15px;color:var(--c-muted);line-height:1.8;}

/* 导航 */
.site-header{position:sticky;top:12px;z-index:1030;padding:12px 0 0;}
.pill-nav{display:flex;align-items:center;gap:16px;height:64px;padding:0 18px;border-radius:var(--r-pill);background:rgba(255,255,255,.88);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--c-line);box-shadow:var(--sh-nav);}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--c-text);}
.brand:hover{color:var(--c-text);}
.brand-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,#0F63A8,#0B4B7F);color:#fff;font-size:17px;flex:0 0 auto;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:16px;font-weight:700;letter-spacing:-.2px;color:var(--c-text);white-space:nowrap;}
.brand-sub{font-family:var(--mono);font-size:10px;letter-spacing:.2em;color:var(--c-weak);}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{padding:9px 14px;border-radius:var(--r-pill);font-size:15px;font-weight:500;color:#31465B;white-space:nowrap;}
.nav-links a:hover{background:var(--c-primary-soft);color:var(--c-primary-deep);}
.nav-links a.active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600;}
.nav-cta{display:flex;align-items:center;gap:10px;margin-left:6px;}
.nav-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;border-radius:50%;border:1px solid var(--c-line);background:#fff;color:var(--c-primary);font-size:17px;cursor:pointer;transition:all .2s ease;}
.nav-toggle:hover{background:var(--c-primary-soft);}
.nav-drawer{position:fixed;inset:0;z-index:1060;background:rgba(16,42,67,.45);opacity:0;visibility:hidden;transition:opacity .22s ease,visibility .22s ease;}
.nav-drawer.open{opacity:1;visibility:visible;}
.nav-drawer-panel{position:absolute;top:0;right:0;width:min(86vw,340px);height:100%;background:#fff;padding:18px;display:flex;flex-direction:column;gap:2px;box-shadow:-14px 0 40px rgba(16,42,67,.18);transform:translateX(100%);transition:transform .26s ease;overflow-y:auto;}
.nav-drawer.open .nav-drawer-panel{transform:translateX(0);}
.nav-drawer-panel a{display:flex;align-items:center;height:52px;padding:0 12px;border-bottom:1px solid var(--c-line);color:var(--c-text);font-size:16px;border-radius:10px;}
.nav-drawer-panel a:hover{background:var(--c-primary-soft);color:var(--c-primary-deep);}
.nav-drawer-panel a.active{color:var(--c-primary);font-weight:600;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:6px 4px 14px;}
.drawer-close{width:40px;height:40px;border-radius:50%;border:1px solid var(--c-line);background:#fff;color:var(--c-muted);cursor:pointer;}
.drawer-cta{margin-top:16px;}

/* 按钮与徽章 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-pill);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,background .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;white-space:nowrap;}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 10px 22px -12px rgba(242,114,31,.8);}
.btn-accent:hover{background:#DC6312;color:#fff;transform:translateY(-1px);}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 10px 22px -14px rgba(15,99,168,.85);}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-line);}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary-deep);transform:translateY(-1px);}
.btn-block{width:100%;}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none;}
.badge-cat{display:inline-flex;align-items:center;gap:7px;height:28px;padding:0 14px;border-radius:var(--r-pill);background:var(--c-primary-soft);color:var(--c-primary);font-size:13px;font-weight:600;}

/* 文章头部 */
.article-hero{padding:44px 0 6px;}
.breadcrumb-nav{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-weak);margin-bottom:20px;}
.breadcrumb-nav a{color:var(--c-muted);}
.breadcrumb-nav a:hover{color:var(--c-primary);}
.breadcrumb-nav .sep{color:#C3D2DF;}
.breadcrumb-nav .current{color:var(--c-text);max-width:56ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-title{font-size:clamp(27px,4vw,42px);line-height:1.3;font-weight:700;letter-spacing:-.6px;color:var(--c-primary-deep);margin:16px 0 16px;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;font-family:var(--mono);font-size:13px;color:var(--c-muted);}
.article-meta i{color:var(--c-primary);margin-right:6px;}
.article-lead{margin-top:18px;font-size:17px;line-height:1.85;color:#31465B;max-width:70ch;}
.article-cover{margin:28px 0 0;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);background:var(--c-primary-soft);}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.article-cover figcaption{font-size:13px;color:var(--c-weak);padding:12px 4px 0;text-align:center;}

/* 正文 */
.article-main{padding:44px 0 var(--sp-section);}
.article-content{font-size:16px;line-height:1.85;color:#22384A;}
.article-content>*+*{margin-top:1em;}
.article-content p{margin:0 0 1.1em;}
.article-content h2{font-size:clamp(21px,2.4vw,26px);line-height:1.45;font-weight:700;color:var(--c-primary-deep);margin:2em 0 .8em;padding-left:14px;border-left:4px solid var(--c-primary);}
.article-content h3{font-size:20px;line-height:1.5;font-weight:700;color:var(--c-text);margin:1.7em 0 .6em;}
.article-content h4{font-size:17px;font-weight:700;color:var(--c-text);margin:1.4em 0 .5em;}
.article-content ul{padding-left:0;margin:0 0 1.2em;}
.article-content ul li{position:relative;padding-left:20px;margin:.5em 0;}
.article-content ul li::before{content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--c-primary);}
.article-content ol{padding-left:1.4em;margin:0 0 1.2em;list-style:decimal;}
.article-content ol li{margin:.5em 0;}
.article-content blockquote{margin:1.5em 0;padding:16px 20px;background:var(--c-primary-soft);border-left:3px solid var(--c-primary);border-radius:0 12px 12px 0;color:#2A4257;}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content img{border-radius:var(--r-img);margin:1.5em 0;}
.article-content figure{margin:1.6em 0;}
.article-content figcaption{text-align:center;font-size:13px;color:var(--c-weak);margin-top:10px;}
.article-content a{color:var(--c-primary);border-bottom:1px dashed rgba(15,99,168,.5);}
.article-content a:hover{border-bottom-style:solid;color:var(--c-primary-deep);}
.article-content table{width:100%;border-collapse:collapse;font-size:15px;margin:1.5em 0;border-radius:12px;overflow:hidden;border:1px solid var(--c-line);}
.article-content th{background:var(--c-primary-soft);color:var(--c-primary-deep);font-weight:600;}
.article-content th,.article-content td{padding:12px 14px;border-bottom:1px solid var(--c-line);text-align:left;}
.article-content tbody tr:nth-child(even){background:#F8FBFE;}
.article-content strong{font-weight:700;color:var(--c-primary-deep);}
.article-content code{font-family:var(--mono);font-size:14px;background:var(--c-primary-soft);color:var(--c-primary-deep);padding:2px 6px;border-radius:6px;}
.article-content hr{border:0;border-top:1px solid var(--c-line);margin:2em 0;}

/* 空态 */
.empty-state{text-align:center;padding:64px 24px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);}
.empty-icon{width:64px;height:64px;margin:0 auto 18px;border-radius:50%;display:grid;place-items:center;background:var(--c-primary-soft);color:var(--c-primary);font-size:26px;}
.empty-state h2{font-size:22px;font-weight:700;color:var(--c-primary-deep);}
.empty-state p{margin:12px auto 22px;max-width:44ch;color:var(--c-muted);font-size:15px;}

/* 标签与阅读导航 */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:40px;padding-top:24px;border-top:1px solid var(--c-line);}
.tag-row .tag-label{font-size:13px;color:var(--c-weak);margin-right:2px;}
.tag{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--c-line);color:var(--c-muted);font-size:13px;transition:all .2s ease;}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft);}
.read-nav{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:34px;}
.read-nav a{display:block;padding:20px 22px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease;}
.read-nav a:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.read-nav .k{display:block;font-family:var(--mono);font-size:12px;letter-spacing:.12em;color:var(--c-weak);}
.read-nav .t{display:block;margin-top:6px;font-size:16px;font-weight:600;color:var(--c-primary-deep);}
.read-nav .d{display:block;margin-top:6px;font-size:13px;color:var(--c-muted);}

/* 相关推荐 */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{position:relative;display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease;}
.post-card::after{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--c-primary);opacity:0;transition:opacity .2s ease;}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);color:inherit;}
.post-card:hover::after{opacity:1;}
.post-cover{aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-soft);}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.post-card:hover .post-cover img{transform:scale(1.03);}
.post-body{display:flex;flex-direction:column;gap:10px;flex:1;padding:20px 22px 22px;}
.post-cat{align-self:flex-start;display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);background:var(--c-primary-soft);color:var(--c-primary);font-size:12px;font-weight:600;}
.post-title{font-size:17px;font-weight:600;line-height:1.5;color:var(--c-text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card:hover .post-title{color:var(--c-primary-deep);}
.post-excerpt{font-size:14px;line-height:1.7;color:var(--c-muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:12px;border-top:1px solid var(--c-line);font-family:var(--mono);font-size:13px;color:var(--c-weak);}
.post-foot .more{font-family:var(--bs-body-font-family);font-weight:600;color:var(--c-primary);}
.pill-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.pill-link{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 18px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--c-line);color:var(--c-muted);font-size:14px;transition:all .2s ease;}
.pill-link:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft);}

/* CTA 与表单 */
.cta-panel{display:grid;grid-template-columns:1fr 420px;gap:36px;padding:38px;border-radius:24px;border:1px solid var(--c-line);background:linear-gradient(180deg,#E8F2FA 0%,#FFFFFF 78%);box-shadow:var(--sh-1);}
.cta-copy h2{font-size:clamp(23px,2.8vw,30px);font-weight:700;line-height:1.4;color:var(--c-primary-deep);letter-spacing:-.4px;}
.cta-copy p{margin-top:14px;font-size:15px;line-height:1.85;color:var(--c-muted);max-width:52ch;}
.cta-points{margin-top:22px;display:flex;flex-direction:column;gap:12px;}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:#31465B;}
.cta-points i{color:var(--c-success);margin-top:5px;}
.form-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1);}
.form-card h3{font-size:18px;font-weight:700;color:var(--c-primary-deep);margin-bottom:6px;}
.form-card .form-hint{font-size:13px;color:var(--c-weak);margin-bottom:18px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;font-weight:600;color:#31465B;margin-bottom:7px;}
.field .req{color:var(--c-accent);}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border:1px solid var(--c-line);border-radius:var(--r-input);background:#fff;color:var(--c-text);font-size:15px;line-height:1.5;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;}
.field textarea{min-height:88px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--c-primary);background:#FBFDFF;box-shadow:0 0 0 3px rgba(15,99,168,.12);}
.form-note{margin-top:12px;font-size:13px;line-height:1.7;color:var(--c-weak);}
.form-note a{color:var(--c-muted);border-bottom:1px dashed rgba(90,112,134,.5);}
.form-note a:hover{color:var(--c-primary);border-bottom-style:solid;}

/* 弹层 */
.modal-content{border:0;border-radius:20px;box-shadow:var(--sh-2);overflow:hidden;}
.modal-backdrop.show{opacity:.45;}
.modal-header{border-bottom:1px solid var(--c-line);padding:20px 26px;}
.modal-title{font-size:19px;font-weight:700;color:var(--c-primary-deep);}
.modal-body{padding:24px 26px 28px;}
.btn-close{--bs-btn-close-focus-shadow:none;}

/* 页脚 */
.site-footer{background:var(--c-footer);border-top:1px solid var(--c-line);padding:64px 0 24px;margin-top:8px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}
.footer-desc{margin:16px 0 0;font-size:14px;line-height:1.85;color:var(--c-muted);max-width:36ch;}
.footer-col h4{font-size:15px;font-weight:700;color:var(--c-text);margin-bottom:14px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{font-size:14px;color:var(--c-muted);}
.footer-col ul a:hover{color:var(--c-primary);}
.footer-meta{font-size:14px;line-height:2;color:var(--c-muted);}
.footer-meta strong{color:var(--c-text);font-weight:600;}
.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid #DCE7F0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:var(--c-muted);}
.footer-bottom a{color:var(--c-muted);}
.footer-bottom a:hover{color:var(--c-primary);}

@media (max-width:1199.98px){
  :root{--sp-section:80px;}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:991.98px){
  :root{--sp-section:64px;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-cta .btn-accent{display:none;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .cta-panel{grid-template-columns:1fr;padding:28px;}
  .article-hero{padding:32px 0 0;}
  .pill-nav{height:60px;}
}
@media (max-width:767.98px){
  .pill-nav{gap:10px;padding:0 14px;}
  .brand-name{font-size:15px;}
  .brand-sub{display:none;}
  .read-nav{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .article-cover figcaption{text-align:left;}
}
@media (max-width:575.98px){
  :root{--sp-section:48px;}
  body{font-size:15px;}
  .container{padding:0 16px;}
  .article-title{font-size:26px;letter-spacing:-.3px;}
  .article-lead{font-size:16px;}
  .btn{width:100%;}
  .read-nav a{padding:18px;}
  .form-card{padding:20px;}
  .cta-panel{padding:20px;border-radius:18px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --brand:#0F63A8;
  --brand-deep:#0B4B7F;
  --brand-light:#E8F2FA;
  --accent:#F2721F;
  --teal:#12A17A;
  --bg:#F5F8FB;
  --card:#FFFFFF;
  --line:#E4ECF3;
  --text:#17293A;
  --muted:#5A7086;
  --weak:#8A9CAF;
  --radius-card:16px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(16,42,67,.04), 0 12px 28px -14px rgba(16,42,67,.14);
  --shadow-2:0 20px 40px -18px rgba(16,42,67,.20);
  --shadow-nav:0 8px 30px rgba(16,42,67,.10);
  --mono:"IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --bs-link-color:var(--brand);
  --bs-link-hover-color:var(--brand-deep);
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--bs-body-font-family);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;}
h1,h2,h3,h4{color:var(--text);font-weight:700;letter-spacing:-.01em;margin:0;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  padding:14px 0 10px;
  background:linear-gradient(180deg, rgba(245,248,251,.94) 0%, rgba(245,248,251,.6) 70%, rgba(245,248,251,0) 100%);
}
.pill-nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:64px;
  padding:8px 12px 8px 18px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.82);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border:1px solid var(--line);
  box-shadow:var(--shadow-nav);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand:hover{color:var(--brand);}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;
  border-radius:14px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-deep) 100%);
  color:#fff;font-size:18px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px -10px rgba(15,99,168,.9);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:16px;font-weight:700;color:var(--text);letter-spacing:.01em;}
.brand-sub{font-size:10px;letter-spacing:.18em;color:var(--weak);font-weight:600;}
.nav-links{display:flex;align-items:center;gap:4px;flex:1 1 auto;justify-content:center;}
.nav-links a{
  display:inline-flex;align-items:center;
  height:42px;padding:0 16px;
  border-radius:var(--radius-pill);
  color:var(--muted);
  font-size:15px;
  font-weight:500;
  white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.nav-links a:hover{background:var(--brand-light);color:var(--brand);}
.nav-links a.active{background:#D9EAF8;color:var(--brand-deep);font-weight:600;}
.nav-cta{display:flex;align-items:center;gap:8px;flex:0 0 auto;}
.nav-toggle{
  width:44px;height:44px;
  border-radius:50%;
  border:1px solid var(--line);
  background:#fff;
  color:var(--brand-deep);
  font-size:17px;
  display:none;align-items:center;justify-content:center;
  cursor:pointer;
  transition:background .2s ease,transform .2s ease;
}
.nav-toggle:hover{background:var(--brand-light);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;
  padding:11px 24px;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 24px -12px rgba(242,114,31,.85);}
.btn-accent:hover{background:#DE6415;color:#fff;transform:translateY(-1px);box-shadow:0 14px 28px -12px rgba(242,114,31,.9);}
.btn-primary-brand{background:var(--brand);color:#fff;box-shadow:0 12px 26px -14px rgba(15,99,168,.9);}
.btn-primary-brand:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:#fff;color:var(--brand-deep);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--brand);background:var(--brand-light);color:var(--brand-deep);transform:translateY(-1px);}
.btn-block{width:100%;}
.btn:active{transform:translateY(0);}

/* ---------- 通用区块 ---------- */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin:0 auto 44px;text-align:center;}
.section-head.left{margin-left:0;text-align:left;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--radius-pill);
  background:var(--brand-light);color:var(--brand-deep);
  font-size:13px;font-weight:600;letter-spacing:.02em;
  margin-bottom:16px;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);}
h1.hero-title{font-size:clamp(28px,4.2vw,44px);line-height:1.25;}
h2{font-size:clamp(23px,2.6vw,30px);line-height:1.35;}
h3{font-size:20px;line-height:1.45;}
.lead-text{font-size:18px;color:var(--muted);line-height:1.8;}
.muted{color:var(--muted);}
.weak{color:var(--weak);font-size:13px;}
.mono{font-family:var(--mono);letter-spacing:.02em;}

/* ---------- 分类页头 ---------- */
.page-head{
  position:relative;
  margin-top:-14px;
  padding:76px 0 68px;
  overflow:hidden;
  background-image:linear-gradient(180deg, rgba(11,75,127,.86) 0%, rgba(15,99,168,.82) 55%, rgba(15,99,168,.72) 100%), url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  color:#fff;
}
.page-head::after{
  content:"";
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px, transparent 1px);
  background-size:22px 22px;
  opacity:.35;
  pointer-events:none;
}
.page-head .container{position:relative;z-index:2;}
.page-head-inner{max-width:760px;margin:0 auto;text-align:center;}
.page-head h1{color:#fff;font-size:clamp(26px,3.6vw,40px);line-height:1.3;}
.page-head .guide-line{
  margin-top:18px;
  font-size:17px;
  line-height:1.8;
  color:rgba(255,255,255,.9);
}
.page-head .eyebrow{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.28);}
.breadcrumb-line{
  display:flex;justify-content:center;gap:8px;
  margin-bottom:20px;
  font-size:13px;color:rgba(255,255,255,.82);
}
.breadcrumb-line a{color:rgba(255,255,255,.92);}
.breadcrumb-line a:hover{color:#fff;text-decoration:underline;}
.breadcrumb-line .sep{opacity:.6;}

/* ---------- 数据条 ---------- */
.metric-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  margin-top:-46px;
  position:relative;
  z-index:5;
}
.metric-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.metric-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.metric-num{
  font-family:var(--mono);
  font-size:34px;
  font-weight:600;
  color:var(--brand-deep);
  line-height:1.1;
}
.metric-num span{font-size:15px;color:var(--muted);margin-left:4px;font-family:inherit;}
.metric-label{margin-top:10px;font-size:13px;color:var(--muted);}
.metric-bar{height:3px;width:36px;background:var(--accent);border-radius:2px;margin-bottom:16px;}
.metric-card:nth-child(2) .metric-bar{background:var(--teal);}
.metric-card:nth-child(3) .metric-bar{background:var(--brand);}
.metric-card:nth-child(4) .metric-bar{background:var(--brand-deep);}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;max-width:900px;margin:0 auto;}
.timeline::before{
  content:"";
  position:absolute;left:27px;top:20px;bottom:20px;
  width:2px;
  background:linear-gradient(180deg,var(--brand) 0%,#B9D6EC 70%,rgba(185,214,236,0) 100%);
}
.tl-item{
  position:relative;
  display:grid;
  grid-template-columns:56px 1fr;
  gap:22px;
  align-items:start;
  margin-bottom:26px;
}
.tl-item:last-child{margin-bottom:0;}
.tl-node{
  width:56px;height:56px;border-radius:50%;
  background:#fff;
  border:2px solid var(--brand);
  color:var(--brand-deep);
  font-family:var(--mono);
  font-size:15px;font-weight:600;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 22px -14px rgba(15,99,168,.9);
  position:relative;z-index:2;
  transition:background .2s ease,color .2s ease;
}
.tl-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px 28px;
  box-shadow:var(--shadow-1);
  position:relative;
  overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease;
}
.tl-card::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--brand);
  opacity:0;
  transition:opacity .2s ease;
}
.tl-item:hover .tl-card{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.tl-item:hover .tl-card::before{opacity:1;}
.tl-item:hover .tl-node{background:var(--brand);color:#fff;}
.tl-card h3{margin-bottom:10px;}
.tl-card p{color:var(--muted);font-size:15px;line-height:1.8;}
.tl-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;}
.tl-points li{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:var(--brand-deep);
  background:var(--brand-light);
  border-radius:var(--radius-pill);
  padding:5px 13px;
}
.tl-points i{font-size:11px;color:var(--teal);}

/* ---------- 双列内容卡 ---------- */
.duo-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.duo-card{
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.duo-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.duo-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--brand-light);}
.duo-cover img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease;}
.duo-card:hover .duo-cover img{transform:scale(1.03);}
.duo-cover .tag{
  position:absolute;left:14px;top:14px;
  background:rgba(255,255,255,.92);
  color:var(--brand-deep);
  font-size:12px;font-weight:600;
  border-radius:var(--radius-pill);
  padding:5px 12px;
}
.duo-body{padding:24px 26px 26px;}
.duo-body h3{font-size:19px;margin-bottom:10px;}
.duo-body p{color:var(--muted);font-size:15px;line-height:1.8;}
.duo-list{margin-top:14px;display:grid;gap:8px;}
.duo-list li{display:flex;gap:9px;font-size:14px;color:var(--muted);line-height:1.7;}
.duo-list i{color:var(--brand);font-size:12px;margin-top:6px;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:16px;
  font-size:14px;font-weight:600;color:var(--brand);
  border-bottom:1px dashed rgba(15,99,168,.5);
  padding-bottom:2px;
}
.text-link:hover{border-bottom-style:solid;border-bottom-color:var(--brand-deep);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:14px;
  margin-bottom:12px;
  overflow:hidden;
  transition:box-shadow .2s ease;
}
.faq-item:hover{box-shadow:var(--shadow-1);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;
  background:transparent;border:0;
  text-align:left;
  font-size:16px;font-weight:600;color:var(--text);
  cursor:pointer;
  position:relative;
}
.faq-q::before{
  content:"";
  position:absolute;left:0;top:14px;bottom:14px;width:3px;
  background:var(--brand);
  border-radius:0 3px 3px 0;
  opacity:0;
  transition:opacity .2s ease;
}
.faq-q[aria-expanded="true"]::before{opacity:1;}
.faq-q i{color:var(--brand);font-size:14px;transition:transform .2s ease;}
.faq-q[aria-expanded="true"] i{transform:rotate(180deg);}
.faq-a{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--muted);}

/* ---------- 表单 / CTA ---------- */
.cta-panel{
  position:relative;
  overflow:hidden;
  border-radius:24px;
  background:linear-gradient(135deg,#0B4B7F 0%,#0F63A8 100%);
  color:#fff;
  padding:52px;
  box-shadow:var(--shadow-2);
}
.cta-panel::after{
  content:"";
  position:absolute;right:-120px;top:-120px;
  width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.16) 0%,rgba(255,255,255,0) 70%);
}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start;}
.cta-panel h2{color:#fff;font-size:clamp(22px,2.4vw,28px);}
.cta-panel p{color:rgba(255,255,255,.86);font-size:15px;line-height:1.85;}
.cta-points{display:grid;gap:12px;margin-top:20px;}
.cta-points li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.92);}
.cta-points i{color:#8FD8BC;margin-top:5px;font-size:12px;}
.form-card{
  background:#fff;
  border-radius:18px;
  padding:28px;
  color:var(--text);
  box-shadow:0 24px 50px -24px rgba(6,32,55,.7);
}
.form-row{margin-bottom:16px;}
.form-row label{display:block;font-size:13px;font-weight:600;color:var(--brand-deep);margin-bottom:7px;}
.form-row .req{color:var(--accent);margin-left:3px;}
.form-control,.form-select{
  width:100%;
  min-height:46px;
  padding:11px 14px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#FBFDFF;
  color:var(--text);
  font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
textarea.form-control{min-height:96px;resize:vertical;}
.form-control::placeholder{color:var(--weak);}
.form-control:focus,.form-select:focus{
  outline:none;
  border-color:var(--brand);
  background:#fff;
  box-shadow:0 0 0 3px rgba(15,99,168,.14);
}
.privacy-note{
  margin-top:12px;
  font-size:13px;
  color:var(--weak);
  line-height:1.7;
}
.privacy-note a{color:var(--brand);border-bottom:1px dashed rgba(15,99,168,.5);}
.privacy-note a:hover{border-bottom-style:solid;}
.form-hint{margin-top:12px;font-size:13px;color:var(--teal);font-weight:600;display:none;}
.form-hint.show{display:block;}

/* ---------- 相关分类胶囊 ---------- */
.related-cats{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;}
.cat-pill{
  display:inline-flex;align-items:center;gap:9px;
  padding:11px 22px;
  border-radius:var(--radius-pill);
  background:#fff;
  border:1px solid var(--line);
  color:var(--brand-deep);
  font-size:15px;font-weight:600;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,background .2s ease;
}
.cat-pill:hover{transform:translateY(-2px);border-color:var(--brand);background:var(--brand-light);color:var(--brand-deep);box-shadow:var(--shadow-2);}
.cat-pill i{color:var(--accent);font-size:13px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#EEF4F9;
  border-top:1px solid var(--line);
  padding:66px 0 26px;
  margin-top:20px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:40px;
  border-bottom:1px solid #DFE9F1;
}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:var(--muted);max-width:330px;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--brand-deep);}
.footer-col ul{display:grid;gap:11px;}
.footer-col ul a{font-size:14px;color:var(--muted);}
.footer-col ul a:hover{color:var(--brand);}
.footer-meta{font-size:14px;color:var(--muted);line-height:2;}
.footer-meta strong{color:var(--text);font-weight:600;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;align-items:center;
  padding-top:22px;
  font-size:13px;
  color:var(--weak);
}
.footer-bottom a{color:var(--muted);}
.footer-bottom a:hover{color:var(--brand);}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(11,35,58,.45);
  opacity:0;visibility:hidden;
  transition:opacity .2s ease,visibility .2s ease;
  z-index:1050;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.nav-drawer{
  position:fixed;top:0;right:0;
  width:300px;max-width:86vw;height:100%;
  background:#fff;
  z-index:1060;
  padding:22px;
  transform:translateX(102%);
  transition:transform .24s ease;
  box-shadow:-16px 0 40px rgba(11,35,58,.16);
  overflow-y:auto;
}
.nav-drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{
  width:40px;height:40px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--brand-deep);
  cursor:pointer;font-size:16px;
}
.drawer-close:hover{background:var(--brand-light);}
.drawer-links{display:grid;}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:0 4px;
  border-bottom:1px solid var(--line);
  color:var(--muted);font-size:15px;font-weight:500;
}
.drawer-links a.active{color:var(--brand-deep);font-weight:700;}
.drawer-links a:hover{color:var(--brand);}
.drawer-cta{margin-top:22px;}

/* ---------- 弹层 ---------- */
.modal-content{border:0;border-radius:20px;overflow:hidden;box-shadow:0 30px 70px -30px rgba(6,32,55,.6);}
.modal-header{border-bottom:1px solid var(--line);padding:20px 24px;}
.modal-title{font-size:17px;font-weight:700;color:var(--text);}
.modal-body{padding:24px;}
.modal-backdrop.show{opacity:.45;}
.modal-close{
  width:36px;height:36px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--muted);
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:background .2s ease,color .2s ease;
}
.modal-close:hover{background:var(--brand-light);color:var(--brand-deep);}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .metric-strip{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-cta .btn-accent{display:none;}
  .section{padding:64px 0;}
  .section-tight{padding:48px 0;}
  .cta-grid{grid-template-columns:1fr;gap:30px;}
  .cta-panel{padding:34px 26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .page-head{padding:56px 0 74px;}
  .duo-grid{grid-template-columns:1fr;}
  .timeline::before{left:19px;}
  .tl-item{grid-template-columns:40px 1fr;gap:16px;}
  .tl-node{width:40px;height:40px;font-size:13px;border-width:2px;}
  .tl-card{padding:20px;}
  .metric-strip{grid-template-columns:1fr;margin-top:-38px;gap:14px;}
  .metric-card{padding:20px;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:575px){
  body{font-size:15px;}
  h1.hero-title{font-size:28px;}
  .page-head h1{font-size:25px;}
  .lead-text{font-size:16px;}
  .brand-name{font-size:14px;}
  .brand-sub{font-size:9px;}
  .brand-mark{width:36px;height:36px;flex:0 0 36px;font-size:16px;border-radius:12px;}
  .pill-nav{padding:7px 8px 7px 14px;min-height:58px;}
  .form-card{padding:20px;}
  .cta-panel{padding:26px 18px;}
  .related-cats .cat-pill{width:100%;justify-content:center;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category2 */
:root{
  --brand:#0F63A8;
  --brand-dark:#0B4B7F;
  --brand-light:#E8F2FA;
  --brand-deep:#092A44;
  --accent:#F2721F;
  --accent-dark:#DA6212;
  --green:#12A17A;
  --bg:#F5F8FB;
  --surface:#FFFFFF;
  --line:#E4ECF3;
  --text:#17293A;
  --muted:#5A7086;
  --faint:#8A9CAF;
  --radius:16px;
  --radius-sm:12px;
  --radius-lg:24px;
  --pill:999px;
  --shadow-1:0 1px 2px rgba(16,42,67,.04), 0 12px 28px -14px rgba(16,42,67,.14);
  --shadow-2:0 20px 40px -18px rgba(16,42,67,.20);
  --shadow-nav:0 8px 30px rgba(16,42,67,.10);
  --mono:"IBM Plex Mono","SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  --bs-link-color:#0F63A8;
  --bs-link-hover-color:#0B4B7F;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  --bs-body-color:#17293A;
  --bs-border-color:#E4ECF3;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--bs-body-font-family);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.2px;color:var(--text);}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
::selection{background:rgba(15,99,168,.16);}

.container{max-width:1200px;padding-left:20px;padding-right:20px;margin-left:auto;margin-right:auto;}

/* ============ 悬浮胶囊导航 ============ */
.site-header{position:sticky;top:0;z-index:1030;padding:14px 0 6px;}
.pill-nav{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:64px;padding:8px 18px 8px 20px;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border:1px solid var(--line);border-radius:var(--pill);
  box-shadow:var(--shadow-nav);
}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);flex-shrink:0;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:38px;height:38px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));
  color:#fff;display:grid;place-items:center;font-size:16px;
  box-shadow:0 8px 18px -10px rgba(15,99,168,.9);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:16px;font-weight:700;letter-spacing:.2px;white-space:nowrap;}
.brand-sub{font-family:var(--mono);font-size:9.5px;letter-spacing:.18em;color:var(--faint);}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{
  padding:9px 16px;border-radius:var(--pill);font-size:15px;font-weight:500;
  color:var(--muted);white-space:nowrap;transition:background .2s ease,color .2s ease;
}
.nav-links a:hover{background:var(--brand-light);color:var(--brand);}
.nav-links a.active{background:var(--brand-light);color:var(--brand);font-weight:600;}
.nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--text);
  align-items:center;justify-content:center;font-size:17px;cursor:pointer;
}
.nav-toggle:hover{background:var(--brand-light);color:var(--brand);}

/* 抽屉 */
.nav-drawer{
  position:fixed;inset:0;z-index:1060;background:rgba(16,42,67,.45);
  opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;
}
.nav-drawer.open{opacity:1;visibility:visible;}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:min(320px,86vw);
  background:#fff;padding:22px;display:flex;flex-direction:column;
  transform:translateX(100%);transition:transform .25s ease;overflow-y:auto;
}
.nav-drawer.open .drawer-panel{transform:translateX(0);}
.drawer-close{
  align-self:flex-end;width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--text);cursor:pointer;
}
.drawer-close:hover{background:var(--brand-light);color:var(--brand);}
.drawer-panel a{
  display:flex;align-items:center;min-height:52px;padding:0 6px;
  border-bottom:1px solid var(--line);color:var(--text);font-size:15.5px;font-weight:500;
}
.drawer-panel a.active{color:var(--brand);font-weight:700;}
.drawer-panel .drawer-cta{margin-top:18px;border-bottom:none;}

/* ============ 按钮 ============ */
.btn{
  border-radius:var(--pill);font-size:15px;font-weight:600;line-height:1.2;
  padding:12px 24px;border:1px solid transparent;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn:focus-visible{outline:none;box-shadow:0 0 0 4px rgba(15,99,168,.28);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 12px 24px -14px rgba(242,114,31,.95);}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);}
.btn-brand{background:var(--brand);color:#fff;box-shadow:0 12px 24px -14px rgba(15,99,168,.95);}
.btn-brand:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.48);}
.btn-ghost:hover{background:rgba(255,255,255,.26);color:#fff;transform:translateY(-1px);}
.btn-outline-brand{background:#fff;color:var(--brand);border-color:#BBD8EC;}
.btn-outline-brand:hover{background:var(--brand-light);color:var(--brand-dark);border-color:var(--brand);}
.btn-lg{padding:14px 28px;font-size:15.5px;}
.btn-block{width:100%;}
.btn[disabled],.btn.disabled{opacity:.55;pointer-events:none;box-shadow:none;}

/* ============ 分类页头 ============ */
.page-hero{
  position:relative;overflow:hidden;
  margin-top:-84px;padding:150px 0 88px;
  background-image:
    linear-gradient(104deg,rgba(9,42,68,.94) 0%,rgba(11,75,127,.82) 46%,rgba(15,99,168,.52) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-radius:0 0 32px 32px;color:#fff;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.55) 1px,transparent 1px);
  background-size:22px 22px;opacity:.07;
}
.page-hero .container{position:relative;z-index:2;}
.hero-breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.7);margin-bottom:18px;}
.hero-breadcrumb a{color:rgba(255,255,255,.88);}
.hero-breadcrumb a:hover{color:#fff;text-decoration:underline;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:var(--pill);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.35);
  font-size:13px;font-weight:600;color:#fff;letter-spacing:.4px;margin-bottom:20px;
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);display:inline-block;}
.page-hero h1{
  color:#fff;font-size:clamp(28px,4.4vw,46px);line-height:1.28;
  max-width:900px;margin-bottom:18px;letter-spacing:-.6px;
}
.hero-lead{
  max-width:720px;color:rgba(255,255,255,.9);font-size:17px;line-height:1.8;margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:38px;}
.hero-metrics{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;max-width:660px;
}
.hero-metric{
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);
  border-radius:14px;padding:14px 16px;
}
.hero-metric b{display:block;font-family:var(--mono);font-size:26px;line-height:1.2;color:#fff;}
.hero-metric span{font-size:12.5px;color:rgba(255,255,255,.76);}

/* ============ 板块 ============ */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-white{background:var(--surface);}
.section-head{max-width:740px;margin-bottom:44px;}
.section-num{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:13px;letter-spacing:.18em;color:var(--brand);margin-bottom:12px;
}
.section-num::before{content:"";width:28px;height:2px;background:var(--brand);display:inline-block;border-radius:2px;}
.section-head h2{font-size:clamp(23px,2.6vw,32px);line-height:1.34;margin-bottom:14px;}
.section-desc{color:var(--muted);font-size:16.5px;line-height:1.8;}

/* ============ 卡片网格 2×3 ============ */
.plan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.grid-card{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease;
}
.grid-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;
  background:var(--brand);opacity:0;transition:opacity .2s ease;z-index:2;
}
.grid-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.grid-card:hover::before{opacity:1;}
.grid-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-light);}
.grid-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.grid-card:hover .thumb img{transform:scale(1.03);}
.card-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.badge-soft{
  align-self:flex-start;display:inline-flex;align-items:center;gap:6px;
  background:var(--brand-light);color:var(--brand-dark);
  border-radius:var(--pill);padding:4px 12px;font-size:12.5px;font-weight:600;
}
.badge-soft.orange{background:#FDEFE5;color:#B9520D;}
.card-body h3{font-size:19px;line-height:1.4;}
.card-body p{color:var(--muted);font-size:14.8px;line-height:1.72;margin:0;}
.card-link{
  margin-top:auto;padding-top:6px;display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-size:14.5px;font-weight:600;
}
.card-link i{font-size:12px;transition:transform .2s ease;}
.card-link:hover i{transform:translateX(3px);}

/* ============ 对比表 ============ */
.compare-wrap{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-1);overflow:hidden;
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
table.compare{width:100%;border-collapse:collapse;min-width:760px;}
.compare caption{
  caption-side:top;text-align:left;padding:20px 22px 0;
  font-size:13px;color:var(--faint);
}
.compare thead th{
  background:var(--brand-light);color:var(--brand-dark);
  font-size:14.5px;font-weight:700;text-align:left;
  padding:16px 20px;border-bottom:1px solid #D3E5F3;white-space:nowrap;
}
.compare thead th:first-child{border-top-left-radius:var(--radius);}
.compare thead th .th-badge{
  display:inline-block;margin-left:8px;padding:2px 9px;border-radius:var(--pill);
  background:var(--accent);color:#fff;font-size:11px;font-weight:600;vertical-align:2px;
}
.compare tbody td{
  padding:15px 20px;font-size:14.6px;color:var(--muted);
  border-bottom:1px solid var(--line);vertical-align:top;
}
.compare tbody tr:nth-child(even){background:#F7FAFD;}
.compare tbody tr:last-child td{border-bottom:none;}
.compare tbody td:first-child{font-weight:700;color:var(--text);white-space:nowrap;}
.compare .ok{color:var(--green);font-weight:600;}

.pick-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:24px;}
.pick-card{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);
  border-left:3px solid var(--brand-light);
  border-radius:14px;padding:18px 20px;box-shadow:var(--shadow-1);
  transition:border-color .2s ease,transform .2s ease;
}
.pick-card:hover{border-left-color:var(--brand);transform:translateY(-3px);}
.pick-icon{
  width:40px;height:40px;flex-shrink:0;border-radius:50%;
  background:var(--brand-light);color:var(--brand);
  display:grid;place-items:center;font-size:16px;
}
.pick-card h3{font-size:16.5px;margin-bottom:6px;}
.pick-card p{font-size:14.2px;color:var(--muted);line-height:1.7;margin:0;}

/* ============ FAQ ============ */
.faq .accordion-item{
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  overflow:hidden;margin-bottom:12px;box-shadow:var(--shadow-1);
}
.faq .accordion-button{
  font-size:16px;font-weight:600;color:var(--text);background:var(--surface);
  padding:18px 20px;border-left:3px solid transparent;box-shadow:none;
  gap:14px;line-height:1.6;
}
.faq .accordion-button:not(.collapsed){color:var(--brand);border-left-color:var(--brand);}
.faq .accordion-button:focus{box-shadow:none;border-color:transparent;border-left-color:var(--brand);}
.faq .accordion-button::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  background-image:none;width:28px;height:28px;flex:0 0 28px;border-radius:50%;
  background-color:var(--brand-light);color:var(--brand);
  display:grid;place-items:center;font-size:12px;transform:none;transition:background .2s ease;
}
.faq .accordion-button:not(.collapsed)::after{content:"\f068";transform:none;}
.faq .accordion-body{padding:0 20px 20px 23px;font-size:15px;line-height:1.85;color:var(--muted);}

/* ============ CTA + 表单 ============ */
.cta-section{padding:88px 0 96px;}
.cta-grid{
  display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;
}
.cta-copy h2{font-size:clamp(23px,2.6vw,30px);line-height:1.36;margin-bottom:16px;}
.cta-copy p{color:var(--muted);font-size:16px;line-height:1.85;}
.cta-list{margin-top:22px;display:flex;flex-direction:column;gap:12px;}
.cta-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--text);}
.cta-list i{color:var(--green);margin-top:5px;font-size:14px;}
.cta-note{
  margin-top:24px;padding:14px 18px;border-radius:14px;
  background:var(--brand-light);color:var(--brand-dark);font-size:14px;line-height:1.7;
}
.form-card{
  background:var(--surface);border:1px solid var(--line);border-radius:20px;
  padding:28px;box-shadow:var(--shadow-2);
}
.form-card h3{font-size:19px;margin-bottom:6px;}
.form-card .form-sub{font-size:14px;color:var(--muted);margin-bottom:20px;}
.form-label{font-size:14px;font-weight:600;color:var(--text);margin-bottom:6px;}
.req{color:var(--accent);margin-left:2px;}
.form-control,.form-select{
  border-radius:var(--radius-sm);border:1px solid var(--line);
  padding:12px 14px;font-size:15px;color:var(--text);background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.form-control::placeholder{color:var(--faint);}
.form-control:focus,.form-select:focus{
  border-color:var(--brand);background:#F8FCFF;
  box-shadow:0 0 0 3px rgba(15,99,168,.14);outline:none;
}
.privacy-note{font-size:13px;color:var(--faint);line-height:1.7;margin-top:14px;}
.privacy-note a{color:var(--brand);text-decoration:underline dotted;}
.privacy-note a:hover{text-decoration:underline;}

/* ============ 弹层 ============ */
.modal-backdrop.show{opacity:.45;}
.modal-content{border:none;border-radius:20px;box-shadow:var(--shadow-2);}
.modal-header{border-bottom:1px solid var(--line);padding:20px 24px;}
.modal-title{font-size:18px;font-weight:700;}
.modal-body{padding:22px 24px 26px;}
.modal-header .btn-close{width:36px;height:36px;border-radius:50%;background-color:var(--brand-light);opacity:.85;}
.modal-header .btn-close:hover{opacity:1;}

/* ============ 页脚 ============ */
.site-footer{background:#EEF4F9;border-top:1px solid var(--line);padding:72px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand .brand{margin-bottom:14px;}
.footer-desc{font-size:14.5px;color:var(--muted);line-height:1.8;max-width:360px;}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:14px;}
.footer-col ul li a{display:inline-block;font-size:14.5px;color:var(--muted);line-height:2.1;}
.footer-col ul li a:hover{color:var(--brand);}
.footer-meta{font-size:14px;color:var(--muted);line-height:2.05;}
.footer-meta strong{color:var(--text);font-weight:600;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--faint);
}
.footer-bottom a{color:var(--faint);}
.footer-bottom a:hover{color:var(--brand);}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .plan-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:991px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .page-hero{margin-top:-78px;padding:132px 0 72px;border-radius:0 0 24px 24px;}
  .section{padding:64px 0;}
  .section-tight{padding:52px 0;}
  .cta-section{padding:64px 0 72px;}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .pick-row{grid-template-columns:1fr;}
  .hero-metrics{grid-template-columns:repeat(3,minmax(0,1fr));max-width:100%;}
}
@media (max-width:767px){
  .plan-grid{grid-template-columns:1fr;}
  .section-head{margin-bottom:32px;}
  .hero-metrics{grid-template-columns:1fr;}
  .hero-metric{display:flex;align-items:baseline;gap:12px;}
  .hero-metric b{font-size:22px;}
  .page-hero{padding:120px 0 60px;}
  .nav-cta .btn{display:none;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .form-card{padding:22px;}
}
@media (max-width:575px){
  body{font-size:15.5px;}
  .brand-sub{display:none;}
  .brand-name{font-size:15px;}
  .pill-nav{padding:8px 12px 8px 14px;gap:10px;}
  .page-hero h1{font-size:28px;}
  .hero-lead{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .card-body{padding:20px;}
  .cta-list li{font-size:14.5px;}
  .footer-bottom{flex-direction:column;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}