/* roulang page: index */
:root{
  --brand:#0B5C8C;
  --brand-dark:#084A72;
  --brand-soft:#E8F1F8;
  --accent:#FF7A1A;
  --accent-dark:#E86A0F;
  --accent-soft:#FFF1E6;
  --bg:#F5F8FB;
  --card:#FFFFFF;
  --text:#10233A;
  --muted:#5A6B7F;
  --border:#DCE6F0;
  --green:#1F9D6B;
  --green-soft:#E7F6F0;
  --yellow:#F4B740;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 8px 24px rgba(16,35,58,.08);
  --shadow-hover:0 16px 36px rgba(16,35,58,.14);
  --container:1240px;
  --ease:200ms cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
a{color:inherit;text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--accent);}
img{max-width:100%;display:block;border:0;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:3px solid rgba(255,122,26,.45);outline-offset:2px;}
h1{font-size:36px;line-height:1.25;font-weight:800;letter-spacing:-.4px;}
h2{font-size:28px;line-height:1.32;font-weight:800;letter-spacing:-.3px;}
h3{font-size:22px;line-height:1.4;font-weight:700;}
p{font-size:16px;line-height:1.75;}
.small{font-size:14px;line-height:1.6;}
.tiny{font-size:12px;line-height:1.55;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:80px 0;}
.section-tight{padding:56px 0;}
.bg-white{background:#fff;}
.bg-soft{background:var(--bg);}
.grid-padding-x{margin-left:-12px;margin-right:-12px;}
.grid-padding-x>.cell{padding-left:12px;padding-right:12px;}
.grid-padding-y{margin-top:-12px;margin-bottom:-12px;}
.grid-padding-y>.cell{padding-top:12px;padding-bottom:12px;}

/* 顶部信息条 */
.topbar{
  background:linear-gradient(90deg,var(--brand-dark),var(--brand));
  color:#DDEAF4;
  font-size:13px;
  line-height:1.5;
}
.topbar .container{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:40px;padding-top:6px;padding-bottom:6px;
}
.topbar-left{display:flex;align-items:center;gap:10px;}
.topbar-left i{color:#7FC3E8;}
.topbar-right{display:flex;align-items:center;gap:14px;}
.topbar-tel{color:#fff;font-weight:700;letter-spacing:.3px;}
.topbar-pill{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.22);
  color:#fff;border-radius:999px;padding:3px 12px;font-size:12px;
  transition:background var(--ease);
}
.topbar-pill:hover{background:var(--accent);color:#fff;border-color:var(--accent);}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--border);
  box-shadow:0 2px 10px rgba(16,35,58,.04);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px;}
.logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--text);letter-spacing:-.2px;white-space:nowrap;}
.logo:hover{color:var(--brand);}
.logo-mark{
  width:38px;height:38px;border-radius:12px;flex:0 0 38px;
  background:linear-gradient(135deg,var(--brand),#1379B4);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;
  box-shadow:0 6px 14px rgba(11,92,140,.28);
}
.logo em{font-style:normal;color:var(--accent);}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{
  position:relative;display:inline-block;
  padding:10px 14px;font-size:15px;font-weight:600;color:var(--text);
  border-radius:8px;transition:color var(--ease),background var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;border-radius:3px;
  background:var(--accent);transform:scaleX(0);transform-origin:left center;
  transition:transform var(--ease);
}
.nav-links a:hover{color:var(--brand);background:var(--brand-soft);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--brand);}
.nav-links a.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.burger{
  display:none;width:44px;height:44px;border:1px solid var(--border);border-radius:12px;
  align-items:center;justify-content:center;color:var(--brand);background:#fff;
}
.burger i{font-size:18px;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-sm);padding:12px 22px;font-size:15px;font-weight:700;
  line-height:1.2;border:1px solid transparent;cursor:pointer;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn i{font-size:14px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(11,92,140,.22);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(11,92,140,.28);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 18px rgba(255,122,26,.26);}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,122,26,.3);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--brand-dark);}
.btn-light{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.5);}
.btn-light:hover{background:#fff;color:var(--brand);border-color:#fff;}
.btn-block{width:100%;}
.btn:disabled,.btn.disabled{opacity:.5;pointer-events:none;}

/* 抽屉 */
.drawer{
  position:fixed;inset:0 0 0 auto;width:86%;max-width:340px;z-index:80;
  background:#fff;box-shadow:-16px 0 40px rgba(16,35,58,.18);
  transform:translateX(105%);transition:transform 240ms ease;
  display:flex;flex-direction:column;padding:18px 20px 26px;overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--border);}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--border);color:var(--muted);display:flex;align-items:center;justify-content:center;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;padding:16px 0;}
.drawer-nav a{padding:12px 10px;border-radius:10px;font-size:16px;font-weight:600;border-bottom:1px dashed var(--border);}
.drawer-nav a.active{color:var(--brand);background:var(--brand-soft);}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,35,58,.45);z-index:70;opacity:0;pointer-events:none;
  transition:opacity 240ms ease;
}
.drawer-mask.open{opacity:1;pointer-events:auto;}

/* Hero */
.hero{
  position:relative;
  background:linear-gradient(180deg,#EAF2F8 0%,#F5F8FB 100%);
  padding:64px 0 72px;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;top:-120px;right:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,26,.14),transparent 68%);
}
.hero-grid{position:relative;z-index:2;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--border);border-radius:999px;
  padding:6px 14px;font-size:13px;font-weight:600;color:var(--brand);
  box-shadow:var(--shadow);margin-bottom:20px;
}
.hero-tag i{color:var(--accent);}
.hero h1 .hl{color:var(--brand);}
.hero h1 .hl-accent{color:var(--accent);}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.8;color:var(--muted);max-width:560px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text);font-weight:500;}
.hero-points i{color:var(--green);}
.hero-media{
  position:relative;border-radius:20px;overflow:hidden;
  box-shadow:0 24px 56px rgba(16,35,58,.18);
  border:1px solid rgba(255,255,255,.6);
}
.hero-media img{width:100%;height:420px;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,92,140,.05),rgba(16,35,58,.42));
}
.hero-badge{
  position:absolute;z-index:3;background:#fff;border-radius:14px;
  padding:12px 16px;box-shadow:0 12px 26px rgba(16,35,58,.2);
  display:flex;align-items:center;gap:10px;
}
.hero-badge b{display:block;font-size:16px;color:var(--brand);line-height:1.3;}
.hero-badge span{font-size:12px;color:var(--muted);}
.hero-badge i{font-size:18px;color:var(--accent);}
.hero-badge.b1{left:18px;top:18px;}
.hero-badge.b2{right:18px;bottom:22px;}
.hero-strip{
  margin-top:44px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:20px 24px;
}
.hero-strip .grid-padding-y>.cell{display:flex;align-items:center;gap:12px;}
.hero-strip i{font-size:20px;color:var(--brand);}
.hero-strip b{font-size:20px;color:var(--text);}
.hero-strip span{font-size:13px;color:var(--muted);}

/* 通用板块头 */
.section-head{max-width:760px;margin-bottom:40px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--brand);
  background:var(--brand-soft);border-radius:999px;padding:5px 14px;margin-bottom:14px;
}
.eyebrow.accent{color:var(--accent-dark);background:var(--accent-soft);}
.section-head h2{margin-bottom:12px;}
.section-head p{color:var(--muted);font-size:16px;}

/* 信任条 */
.trust{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:36px 0;}
.trust-item{display:flex;gap:14px;align-items:flex-start;}
.trust-icon{
  width:48px;height:48px;flex:0 0 48px;border-radius:14px;background:var(--brand-soft);
  display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:19px;
}
.trust-item h3{font-size:16px;margin-bottom:4px;}
.trust-item p{font-size:13px;line-height:1.6;color:var(--muted);}

/* 卡片 */
.card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;height:100%;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#C6D8E8;}
.card-cover{position:relative;overflow:hidden;}
.card-cover img{width:100%;height:196px;object-fit:cover;transition:transform 320ms ease;}
.card:hover .card-cover img{transform:scale(1.04);}
.card-body{padding:22px;}
.card-body h3{font-size:18px;margin-bottom:10px;}
.card-body p{font-size:14px;color:var(--muted);line-height:1.7;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  border-radius:999px;padding:4px 12px;font-size:12px;font-weight:600;line-height:1.5;
}
.badge-brand{background:var(--brand-soft);color:var(--brand);}
.badge-accent{background:var(--accent-soft);color:var(--accent-dark);}
.badge-green{background:var(--green-soft);color:var(--green);}
.badge-grey{background:#EFF3F8;color:var(--muted);}
.spec-list{margin:14px 0 18px;display:flex;flex-direction:column;gap:8px;}
.spec-list li{display:flex;align-items:flex-start;gap:8px;font-size:14px;color:var(--muted);}
.spec-list i{color:var(--brand);font-size:12px;margin-top:6px;}
.card-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand);}
.card-link:hover{color:var(--accent);}

/* 优惠阶梯 */
.ladder-wrap{position:relative;}
.ladder{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;align-items:end;}
.ladder-step{
  position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:28px 22px 24px;
  transition:transform var(--ease),box-shadow var(--ease);
}
.ladder-step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.ladder-step:nth-child(1){min-height:318px;}
.ladder-step:nth-child(2){min-height:356px;}
.ladder-step:nth-child(3){min-height:394px;}
.ladder-step:nth-child(4){min-height:432px;border-top:3px solid var(--accent);}
.step-num{
  width:44px;height:44px;border-radius:12px;background:var(--accent);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;
  box-shadow:0 8px 18px rgba(255,122,26,.3);margin-bottom:16px;
}
.ladder-step:nth-child(3) .step-num,.ladder-step:nth-child(4) .step-num{background:var(--brand);box-shadow:0 8px 18px rgba(11,92,140,.26);}
.step-threshold{font-size:13px;font-weight:700;color:var(--accent-dark);letter-spacing:.4px;margin-bottom:6px;}
.ladder-step h3{font-size:18px;margin-bottom:12px;}
.ladder-step .spec-list{margin:0 0 20px;}
.ladder-step .btn{width:100%;margin-top:auto;}
.ladder-step{display:flex;flex-direction:column;}

/* 套餐对比 */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:var(--radius);border:1px solid var(--border);background:#fff;box-shadow:var(--shadow);}
.plan-table{width:100%;min-width:840px;border-collapse:collapse;font-size:14px;}
.plan-table th,.plan-table td{padding:16px 18px;text-align:left;border-bottom:1px solid var(--border);vertical-align:middle;}
.plan-table thead th{background:#F7FAFD;font-size:16px;font-weight:800;color:var(--text);border-bottom:1px solid var(--border);}
.plan-table thead th .sub{display:block;font-size:12px;font-weight:500;color:var(--muted);margin-top:4px;}
.plan-table tbody th{font-weight:600;color:var(--muted);background:#FBFDFE;width:180px;font-size:14px;}
.plan-table td{color:var(--text);}
.plan-table .rec{background:#FFF8F2;}
.plan-table thead th.rec{background:#FFF1E6;color:var(--accent-dark);}
.plan-table tbody tr:last-child th,.plan-table tbody tr:last-child td{border-bottom:0;}
.plan-price{font-size:22px;font-weight:800;color:var(--brand);}
.plan-price small{font-size:12px;font-weight:500;color:var(--muted);display:block;}
.plan-table .btn{padding:9px 16px;font-size:13px;}
.plan-note{margin-top:16px;font-size:13px;color:var(--muted);}

/* 深色数据区 */
.dark-band{
  background:linear-gradient(135deg,#0A3552,#0B5C8C 62%,#12739F);
  color:#E4EFF7;position:relative;overflow:hidden;
}
.dark-band::before{
  content:"";position:absolute;left:-80px;bottom:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,26,.22),transparent 70%);
}
.dark-band .section-head h2{color:#fff;}
.dark-band .section-head p{color:#BFD8E8;}
.metric{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius);padding:22px;backdrop-filter:blur(2px);
}
.metric b{display:block;font-size:30px;font-weight:800;color:#fff;line-height:1.2;}
.metric b em{font-style:normal;font-size:15px;color:#8FC8E6;margin-left:4px;}
.metric span{display:block;margin-top:6px;font-size:13px;color:#BFD8E8;}
.quote{
  background:rgba(255,255,255,.07);border-left:3px solid var(--accent);
  border-radius:12px;padding:20px 22px;height:100%;
}
.quote p{font-size:14px;line-height:1.75;color:#DCEAF3;}
.quote .who{margin-top:14px;font-size:13px;color:#8FC8E6;font-weight:600;}

/* 资讯列表 */
.news-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;
  height:100%;display:flex;flex-direction:column;
  box-shadow:var(--shadow);transition:transform var(--ease),box-shadow var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.news-cover img{width:100%;height:168px;object-fit:cover;}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1;}
.news-body h3{font-size:17px;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body p{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px;}
.news-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12px;color:var(--muted);border-top:1px dashed var(--border);padding-top:12px;}
.news-meta .cat{color:var(--brand);font-weight:600;}
.empty-state{
  background:#fff;border:1px dashed var(--border);border-radius:var(--radius);
  padding:56px 24px;text-align:center;color:var(--muted);
}
.empty-state i{font-size:32px;color:#A9C3D8;display:block;margin-bottom:14px;}
.empty-state strong{display:block;color:var(--text);font-size:17px;margin-bottom:6px;}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;transition:border-color var(--ease);
}
.faq-item.open{border-color:#C6D8E8;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;text-align:left;font-size:17px;font-weight:700;color:var(--text);
  transition:color var(--ease);
}
.faq-q:hover{color:var(--brand);}
.faq-icon{
  flex:0 0 30px;width:30px;height:30px;border-radius:9px;background:var(--brand-soft);
  color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:13px;
  transition:background var(--ease),color var(--ease),transform var(--ease);
}
.faq-item.open .faq-icon{background:var(--accent);color:#fff;transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 320ms ease;}
.faq-a-inner{padding:0 22px 22px 22px;border-left:3px solid var(--accent);margin-left:0;}
.faq-a p{font-size:15px;color:var(--muted);line-height:1.8;}

/* 限时通栏 */
.cta-band{
  background:linear-gradient(120deg,#FFF3E8,#FFE9D6);
  border-top:1px solid #FFDFC6;border-bottom:1px solid #FFDFC6;
}
.cta-band .inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  padding:44px 0;
}
.cta-band h2{font-size:26px;margin-bottom:8px;}
.cta-band p{color:var(--muted);font-size:15px;}
.countdown{display:flex;gap:12px;}
.cd-item{
  background:#fff;border:1px solid #FFD9B8;border-radius:12px;
  min-width:76px;padding:10px 8px;text-align:center;box-shadow:0 8px 18px rgba(255,122,26,.12);
}
.cd-num{display:block;font-size:24px;font-weight:800;color:var(--accent-dark);line-height:1.2;}
.cd-label{display:block;font-size:12px;color:var(--muted);margin-top:2px;}

/* 表单 */
.contact-panel{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:32px;
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--text);}
.field label .req{color:var(--accent);margin-left:2px;}
.field input,.field select,.field textarea{
  width:100%;background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:12px 14px;font-size:15px;line-height:1.5;color:var(--text);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field textarea{min-height:118px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(11,92,140,.14);
}
.field.error input,.field.error select{border-color:#D64545;box-shadow:0 0 0 3px rgba(214,69,69,.12);}
.field .err-msg{display:none;font-size:12px;color:#D64545;margin-top:6px;}
.field.error .err-msg{display:block;}
.form-note{font-size:12px;color:var(--muted);margin-top:14px;}
.form-success{
  display:none;background:var(--green-soft);border:1px solid #BFE6D6;color:#16744F;
  border-radius:var(--radius-sm);padding:12px 16px;font-size:14px;margin-top:16px;
}
.form-success.show{display:block;}
.contact-aside h3{font-size:22px;margin-bottom:14px;}
.contact-aside p{color:var(--muted);font-size:15px;}
.contact-list{margin-top:24px;display:flex;flex-direction:column;gap:16px;}
.contact-list li{display:flex;gap:14px;align-items:flex-start;}
.contact-list .ico{
  width:42px;height:42px;flex:0 0 42px;border-radius:12px;background:var(--brand-soft);
  color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:16px;
}
.contact-list b{display:block;font-size:15px;}
.contact-list span{font-size:13px;color:var(--muted);}

/* 页脚 */
.site-footer{background:#0A2A41;color:#B9CEDD;padding:64px 0 0;}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700;letter-spacing:.3px;}
.footer-brand .logo{color:#fff;margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.8;color:#9DB7C8;max-width:320px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:#B9CEDD;}
.footer-links a:hover{color:var(--accent);}
.footer-contact li{display:flex;gap:10px;font-size:14px;margin-bottom:12px;color:#B9CEDD;}
.footer-contact i{color:#5FA6CE;margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:#8AA6B8;
}
.footer-bottom a{color:#8AA6B8;}
.footer-bottom a:hover{color:var(--accent);}

/* 返回顶部 */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:50;
  width:46px;height:46px;border-radius:14px;background:#fff;color:var(--brand);
  border:1px solid var(--border);box-shadow:var(--shadow);
  display:flex;align-items:center;justify-content:center;font-size:16px;
  opacity:0;pointer-events:none;transition:opacity var(--ease),transform var(--ease);
}
.to-top.show{opacity:1;pointer-events:auto;}
.to-top:hover{background:var(--brand);color:#fff;border-color:var(--brand);transform:translateY(-3px);}

@media (max-width:1023px){
  h1{font-size:30px;}
  h2{font-size:24px;}
  h3{font-size:20px;}
  .section{padding:64px 0;}
  .nav-links{display:none;}
  .nav-actions .btn-primary{display:none;}
  .burger{display:flex;}
  .hero{padding:48px 0 56px;}
  .hero-media img{height:340px;}
  .ladder{grid-template-columns:repeat(2,1fr);align-items:stretch;}
  .ladder-step{min-height:auto !important;}
  .cta-band .inner{padding:36px 0;}
}
@media (max-width:639px){
  h1{font-size:28px;}
  h2{font-size:23px;}
  h3{font-size:20px;}
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .topbar-left span.hide-sm{display:none;}
  .topbar .container{font-size:12px;}
  .hero-media img{height:260px;}
  .hero-cta .btn{width:100%;}
  .ladder{grid-template-columns:1fr;}
  .hero-badge{padding:10px 12px;}
  .hero-badge b{font-size:14px;}
  .contact-panel{padding:22px;}
  .faq-q{font-size:15px;padding:16px;}
  .faq-a-inner{padding:0 16px 18px 16px;}
  .countdown{gap:8px;}
  .cd-item{min-width:64px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .to-top{right:14px;bottom:16px;}
}

/* roulang page: article */
:root{
  --brand:#0B5C8C;
  --brand-dark:#084A72;
  --brand-soft:#E8F2F9;
  --accent:#FF7A1A;
  --accent-dark:#E86A0F;
  --accent-soft:#FFF1E4;
  --bg:#F5F8FB;
  --surface:#FFFFFF;
  --text:#10233A;
  --text-muted:#5A6B7F;
  --border:#DCE6F0;
  --green:#1F9D6B;
  --green-soft:#E6F6EF;
  --yellow:#F4B740;
  --radius:16px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow:0 8px 24px rgba(16,35,58,.08);
  --shadow-hover:0 16px 38px rgba(16,35,58,.15);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
a:hover{color:var(--accent)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding-left:0;list-style:none}
button,input,textarea,select{font-family:inherit;font-size:inherit}
button{cursor:pointer}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:80px 0}
.section-sm{padding:56px 0}
.section-head{max-width:720px;margin-bottom:36px}
.section-head h2{font-size:28px;line-height:1.4;font-weight:800;letter-spacing:.2px}
.section-head p{margin-top:10px;color:var(--text-muted);font-size:15px}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:700;letter-spacing:1.2px;
  color:var(--brand);background:var(--brand-soft);
  padding:5px 12px;border-radius:var(--radius-pill);margin-bottom:14px;
}
/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--border);
  box-shadow:0 2px 12px rgba(16,35,58,.04);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;height:72px;
}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-size:20px;font-weight:800;color:var(--text);letter-spacing:.4px;
  white-space:nowrap;
}
.logo:hover{color:var(--text)}
.logo em{font-style:normal;color:var(--accent)}
.logo-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(140deg,var(--brand),var(--brand-dark));
  display:grid;place-items:center;color:#fff;font-size:16px;flex:0 0 auto;
}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  position:relative;padding:9px 13px;border-radius:8px;
  font-size:15px;font-weight:600;color:var(--text-muted);white-space:nowrap;
}
.nav-links a:hover{color:var(--brand);background:var(--brand-soft)}
.nav-links a.active{color:var(--brand)}
.nav-links a.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:1px;
  height:3px;border-radius:2px;background:var(--accent);
}
.nav-actions{display:flex;align-items:center;gap:12px}
.burger{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--border);background:#fff;color:var(--text);font-size:17px;
}
.burger:hover{background:var(--brand-soft);color:var(--brand)}
.burger:focus-visible{outline:3px solid rgba(255,122,26,.4);outline-offset:2px}
/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:700;line-height:1;border:1px solid transparent;
  transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,color .2s ease;
}
.btn i{font-size:14px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(11,92,140,.22)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(11,92,140,.28)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 18px rgba(255,122,26,.28)}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(232,106,15,.32)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-2px)}
.btn-light{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.5)}
.btn-light:hover{background:#fff;color:var(--brand);transform:translateY(-2px)}
.btn:focus-visible{outline:3px solid rgba(255,122,26,.45);outline-offset:2px}
.btn[disabled]{opacity:.55;pointer-events:none}
/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;
  background-image:linear-gradient(rgba(8,32,54,.82),rgba(8,42,70,.74)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  color:#fff;padding:56px 0 60px;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,.72);margin-bottom:20px;
}
.breadcrumb a{color:rgba(255,255,255,.78)}
.breadcrumb a:hover{color:#fff;text-decoration:underline}
.breadcrumb span{opacity:.6}
.breadcrumb em{
  font-style:normal;color:#FFD9BC;max-width:460px;
  display:inline-block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;vertical-align:bottom;
}
.article-hero h1{
  font-size:36px;line-height:1.4;font-weight:800;letter-spacing:.3px;
  max-width:900px;
}
.article-meta{
  display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:22px;
  font-size:13.5px;color:rgba(255,255,255,.8);
}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:#FFD9BC}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--radius-pill);
  font-size:12.5px;font-weight:700;letter-spacing:.3px;
  background:var(--brand-soft);color:var(--brand);
}
.tag-accent{background:var(--accent-soft);color:var(--accent-dark)}
.tag-green{background:var(--green-soft);color:var(--green)}
.tag-outline{background:transparent;border:1px solid var(--border);color:var(--text-muted)}
.hero-tags .tag{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.28)}
/* ---------- 正文 ---------- */
.article-wrap{padding:56px 0 72px}
.article-shell{
  max-width:880px;margin:0 auto;
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);box-shadow:var(--shadow);
  padding:44px 48px 40px;
}
.article-lede{
  font-size:16px;line-height:1.9;color:var(--text-muted);
  padding:18px 22px;background:#F2F7FC;border-left:4px solid var(--brand);
  border-radius:0 12px 12px 0;margin-bottom:32px;
}
.article-body{font-size:16px;line-height:1.9;color:var(--text)}
.article-body p{margin:0 0 1.15em}
.article-body h2{
  font-size:26px;line-height:1.4;font-weight:800;
  margin:1.9em 0 .75em;padding-left:14px;border-left:4px solid var(--accent);
}
.article-body h3{font-size:20px;line-height:1.5;font-weight:700;margin:1.6em 0 .6em}
.article-body h4{font-size:17px;font-weight:700;margin:1.4em 0 .5em}
.article-body ul,.article-body ol{margin:0 0 1.2em 1.3em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:.5em}
.article-body img{border-radius:14px;margin:1.3em 0;width:100%;height:auto}
.article-body figure{margin:1.4em 0}
.article-body figcaption{font-size:13px;color:var(--text-muted);text-align:center;margin-top:10px}
.article-body blockquote{
  margin:1.5em 0;padding:16px 22px;background:#F2F7FC;
  border-left:4px solid var(--brand);border-radius:0 12px 12px 0;color:var(--text-muted);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{color:var(--brand);font-weight:600;border-bottom:1px solid rgba(11,92,140,.35)}
.article-body a:hover{color:var(--accent);border-color:rgba(255,122,26,.5)}
.article-body code{background:#EDF2F8;padding:2px 7px;border-radius:6px;font-size:14px;color:var(--brand-dark)}
.article-body pre{
  background:#0F2233;color:#E6EEF7;padding:18px 20px;border-radius:12px;
  overflow:auto;font-size:14px;line-height:1.7;margin:1.4em 0;
}
.article-body pre code{background:transparent;color:inherit;padding:0}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--border);padding:11px 14px;text-align:left}
.article-body th{background:#F2F7FC;font-weight:700}
.article-body hr{border:0;border-top:1px solid var(--border);margin:2em 0}
.article-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  margin-top:38px;padding-top:24px;border-top:1px solid var(--border);
}
.article-foot .foot-label{font-size:13px;color:var(--text-muted);font-weight:700}
.article-empty{text-align:center;padding:40px 10px}
.article-empty i{font-size:40px;color:var(--border)}
.article-empty h2{font-size:24px;margin:18px 0 10px;font-weight:800}
.article-empty p{color:var(--text-muted);margin-bottom:22px}
/* ---------- 上一篇 / 下一篇 ---------- */
.post-nav{padding:8px 0 0}
.post-nav-inner{display:grid;grid-template-columns:1fr 1fr;gap:20px;max-width:880px;margin:0 auto}
.post-nav-item{
  display:flex;flex-direction:column;gap:8px;height:100%;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:20px 22px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease;
}
.post-nav-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);color:var(--text)}
.post-nav-label{font-size:12.5px;font-weight:700;color:var(--accent);letter-spacing:.6px;display:inline-flex;align-items:center;gap:7px}
.post-nav-title{font-size:16.5px;font-weight:700;line-height:1.5;color:var(--text)}
.post-nav-item.next{text-align:right;align-items:flex-end}
/* ---------- 相关推荐 ---------- */
.related{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:#E7EEF6}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:18px;line-height:1.5;font-weight:700}
.card-body h3 a{color:var(--text)}
.card-body h3 a:hover{color:var(--brand)}
.card-body p{font-size:14px;color:var(--text-muted);line-height:1.75}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  margin-top:auto;padding-top:12px;border-top:1px dashed var(--border);
  font-size:12.5px;color:var(--text-muted);
}
.card-foot .more{font-weight:700;color:var(--brand)}
.card-foot .more:hover{color:var(--accent)}
/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,#0B5C8C,#084A72);
  border-radius:22px;padding:44px 48px;color:#fff;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
}
.cta-band h2{font-size:26px;line-height:1.4;font-weight:800;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.back-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.back-link{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:var(--radius-pill);
  background:#fff;border:1px solid var(--border);color:var(--text-muted);
  font-size:14px;font-weight:600;
}
.back-link:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
/* ---------- 页脚 ---------- */
.site-footer{background:#0B2138;color:#C6D4E2;padding:64px 0 0;margin-top:0}
.site-footer h4{font-size:15px;font-weight:800;color:#fff;margin-bottom:16px;letter-spacing:.4px}
.footer-brand{max-width:340px}
.footer-brand .logo{color:#fff;margin-bottom:14px}
.footer-brand .logo:hover{color:#fff}
.footer-brand p{font-size:13.5px;line-height:1.85;color:#96ACC2}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:13.5px;color:#C6D4E2}
.footer-links a:hover{color:var(--accent)}
.footer-contact{display:flex;flex-direction:column;gap:11px}
.footer-contact li{display:flex;gap:10px;font-size:13.5px;color:#C6D4E2;line-height:1.6}
.footer-contact i{color:#6FA8D0;margin-top:4px;width:16px;flex:0 0 auto}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px;
  justify-content:space-between;font-size:12.5px;color:#8AA0B6;
}
/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation:none !important;transition:none !important}
}
/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .section{padding:64px 0}
  .section-sm{padding:48px 0}
  .burger{display:inline-flex;align-items:center;justify-content:center}
  .nav-links{
    position:absolute;top:72px;left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    background:#fff;border-bottom:1px solid var(--border);
    padding:14px 24px 22px;box-shadow:0 16px 30px rgba(16,35,58,.12);
  }
  .nav-links.is-open{display:flex}
  .nav-links a{padding:12px 14px;font-size:15.5px;border-radius:10px}
  .nav-links a.active{background:var(--brand-soft)}
  .nav-links a.active::after{left:14px;right:auto;width:20px;bottom:6px}
  .article-hero h1{font-size:30px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .article-shell{padding:36px 32px 32px}
  .cta-band{padding:36px 32px}
}
@media screen and (max-width:767px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .section-sm{padding:36px 0}
  .nav-inner{height:64px}
  .nav-links{top:64px;padding:12px 16px 18px}
  .logo{font-size:18px}
  .logo-mark{width:32px;height:32px;border-radius:10px;font-size:14px}
  .nav-actions .btn{padding:10px 16px;font-size:14px}
  .article-hero{padding:36px 0 40px}
  .article-hero h1{font-size:26px;line-height:1.45}
  .breadcrumb{font-size:12.5px;margin-bottom:14px}
  .breadcrumb em{max-width:200px}
  .article-meta{gap:8px 16px;font-size:12.5px}
  .article-wrap{padding:32px 0 48px}
  .article-shell{padding:26px 20px 24px;border-radius:14px}
  .article-lede{font-size:15px;padding:14px 16px;margin-bottom:24px}
  .article-body{font-size:16px;line-height:1.9}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:19px}
  .card-grid{grid-template-columns:1fr}
  .post-nav-inner{grid-template-columns:1fr}
  .post-nav-item.next{text-align:left;align-items:flex-start}
  .cta-band{padding:28px 22px;border-radius:18px}
  .cta-band h2{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media screen and (max-width:519px){
  .article-hero h1{font-size:23px}
  .article-shell{padding:22px 16px 20px}
  .article-foot{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --primary:#0B5C8C;
  --primary-dark:#084A72;
  --primary-soft:#E8F1F7;
  --accent:#FF7A1A;
  --accent-dark:#E86A0F;
  --accent-soft:#FFF1E5;
  --bg:#F5F8FB;
  --card:#FFFFFF;
  --text:#10233A;
  --muted:#5A6B7F;
  --border:#DCE6F0;
  --green:#1F9D6B;
  --green-soft:#E7F6EF;
  --yellow:#F4B740;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 8px 24px rgba(16,35,58,.08);
  --shadow-hover:0 16px 36px rgba(16,35,58,.14);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--accent);}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul{padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(255,122,26,.45);outline-offset:2px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:80px 0;}
.section-sm{padding:56px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{
  font-size:28px;
  line-height:1.35;
  font-weight:800;
  letter-spacing:.2px;
  margin-bottom:14px;
}
.section-head p{color:var(--muted);font-size:16px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  color:var(--primary);
  background:var(--primary-soft);
  border-radius:999px;
  padding:6px 14px;
  margin-bottom:16px;
}
.eyebrow i{font-size:12px;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:#fff;
  border-bottom:1px solid var(--border);
  box-shadow:0 2px 12px rgba(16,35,58,.05);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:74px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:20px;
  font-weight:800;
  color:var(--text);
  letter-spacing:.2px;
  white-space:nowrap;
}
.logo:hover{color:var(--text);}
.logo-mark{
  width:36px;
  height:36px;
  border-radius:11px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#fff;
  display:grid;
  place-items:center;
  font-size:15px;
  box-shadow:0 6px 14px rgba(11,92,140,.28);
}
.logo em{font-style:normal;color:var(--accent);}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
  position:relative;
  padding:10px 15px;
  border-radius:10px;
  font-size:15px;
  font-weight:600;
  color:var(--muted);
  transition:background .2s ease,color .2s ease;
}
.nav-links a:hover{color:var(--primary);background:var(--primary-soft);}
.nav-links a.active{color:var(--primary);background:transparent;}
.nav-links a.active::after{
  content:"";
  position:absolute;
  left:15px;
  right:15px;
  bottom:2px;
  height:3px;
  border-radius:3px;
  background:var(--accent);
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.burger{
  display:none;
  width:42px;
  height:42px;
  border:1px solid var(--border);
  border-radius:11px;
  background:#fff;
  color:var(--primary);
  font-size:17px;
  cursor:pointer;
}
.burger:hover{background:var(--primary-soft);}
.nav-overlay{
  position:fixed;
  inset:0;
  background:rgba(16,35,58,.42);
  opacity:0;
  pointer-events:none;
  transition:opacity .25s ease;
  z-index:55;
}
.nav-overlay.is-open{opacity:1;pointer-events:auto;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border-radius:10px;
  font-size:15px;
  font-weight:700;
  line-height:1;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease;
  text-align:center;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(11,92,140,.22);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(11,92,140,.28);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(255,122,26,.26);}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,122,26,.32);}
.btn-ghost{background:#fff;color:var(--primary);border-color:#BFD8E8;}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-dark);border-color:var(--primary);}
.btn-block{width:100%;}
.btn-sm{padding:9px 16px;font-size:14px;}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 11px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:700;
  line-height:1.5;
  white-space:nowrap;
}
.badge-blue{background:var(--primary-soft);color:var(--primary-dark);}
.badge-orange{background:var(--accent-soft);color:var(--accent-dark);}
.badge-green{background:var(--green-soft);color:var(--green);}
.badge-gray{background:#EEF3F8;color:var(--muted);}

/* ============ 面包屑 ============ */
.breadcrumb-bar{background:#fff;border-bottom:1px solid var(--border);}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:14px 0;
  font-size:13px;
  color:var(--muted);
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:#B9C7D6;}
.breadcrumb .current{color:var(--primary);font-weight:700;}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  color:#fff;
  padding:76px 0 72px;
  background-image:
    linear-gradient(100deg,rgba(8,42,66,.92) 0%,rgba(11,92,140,.82) 52%,rgba(11,92,140,.52) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:center;
}
.page-hero h1{
  font-size:36px;
  line-height:1.3;
  font-weight:800;
  letter-spacing:.3px;
  margin-bottom:18px;
}
.page-hero h1 span{color:#FFC48A;}
.page-hero .hero-lead{
  font-size:16.5px;
  line-height:1.85;
  color:rgba(255,255,255,.86);
  max-width:620px;
  margin-bottom:26px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.page-hero .btn-ghost{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.55);}
.page-hero .btn-ghost:hover{background:#fff;color:var(--primary-dark);border-color:#fff;}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 26px;font-size:14px;color:rgba(255,255,255,.82);}
.hero-points span{display:inline-flex;align-items:center;gap:8px;}
.hero-points i{color:#FFC48A;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;
  height:320px;
  object-fit:cover;
  border-radius:var(--radius);
  border:1px solid rgba(255,255,255,.22);
  box-shadow:0 24px 48px rgba(4,26,42,.35);
}
.hero-float{
  position:absolute;
  left:-18px;
  bottom:-22px;
  background:#fff;
  color:var(--text);
  border-radius:14px;
  padding:14px 18px;
  box-shadow:0 18px 36px rgba(4,26,42,.24);
  display:flex;
  gap:22px;
}
.hero-float .stat b{display:block;font-size:22px;line-height:1.2;color:var(--primary);font-weight:800;}
.hero-float .stat span{font-size:12.5px;color:var(--muted);}
.hero-tag{
  position:absolute;
  top:16px;
  right:-10px;
  background:var(--accent);
  color:#fff;
  font-size:12.5px;
  font-weight:700;
  padding:7px 15px;
  border-radius:999px;
  box-shadow:0 10px 22px rgba(255,122,26,.38);
}

/* ============ 装备筛选 + 卡片矩阵 ============ */
.gear-layout{
  display:grid;
  grid-template-columns:250px 1fr;
  gap:32px;
  align-items:start;
}
.anchor-nav{
  position:sticky;
  top:98px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:20px;
  box-shadow:var(--shadow);
}
.anchor-nav h3{
  font-size:15px;
  font-weight:800;
  margin-bottom:14px;
  color:var(--text);
}
.anchor-nav a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:11px 13px;
  border-radius:10px;
  font-size:14.5px;
  font-weight:600;
  color:var(--muted);
  margin-bottom:4px;
  transition:background .2s ease,color .2s ease;
}
.anchor-nav a:hover{background:var(--primary-soft);color:var(--primary-dark);}
.anchor-nav a i{font-size:12px;color:#A9BDCE;}
.anchor-nav .nav-note{
  margin-top:16px;
  padding-top:16px;
  border-top:1px dashed var(--border);
  font-size:13px;
  color:var(--muted);
  line-height:1.7;
}
.gear-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.gear-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow);
  display:flex;
  flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.gear-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#C6DAE9;}
.gear-card.featured{grid-column:span 2;flex-direction:row;}
.gear-card.featured .gear-media{width:46%;flex:0 0 46%;}
.gear-card.featured .gear-media img{height:100%;min-height:280px;}
.gear-card.featured .gear-body{padding:30px;}
.gear-media{position:relative;overflow:hidden;}
.gear-media img{width:100%;height:200px;object-fit:cover;}
.gear-media .badge{position:absolute;top:14px;left:14px;box-shadow:0 6px 16px rgba(16,35,58,.16);}
.gear-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.gear-body h3{font-size:19px;font-weight:800;line-height:1.45;}
.gear-card.featured .gear-body h3{font-size:24px;}
.gear-body p{font-size:14.5px;color:var(--muted);line-height:1.8;}
.spec-chips{display:flex;flex-wrap:wrap;gap:8px;}
.gear-foot{
  margin-top:auto;
  padding-top:16px;
  border-top:1px solid var(--border);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
}
.gear-price{font-size:14px;color:var(--muted);}
.gear-price b{color:var(--accent-dark);font-size:17px;}

/* ============ 参数对照表 ============ */
.table-panel{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.table-scroll{overflow-x:auto;}
table.spec-table{
  width:100%;
  min-width:880px;
  border-collapse:collapse;
  font-size:14.5px;
}
table.spec-table thead th{
  background:#EFF5FA;
  color:var(--primary-dark);
  font-weight:800;
  text-align:left;
  padding:16px 20px;
  border-bottom:1px solid var(--border);
  white-space:nowrap;
}
table.spec-table tbody td{
  padding:16px 20px;
  border-bottom:1px solid #EDF3F8;
  color:var(--muted);
  vertical-align:top;
}
table.spec-table tbody td:first-child{color:var(--text);font-weight:700;}
table.spec-table tbody tr:hover{background:#FAFCFE;}
table.spec-table tbody tr:last-child td{border-bottom:0;}
.table-tip{
  padding:14px 20px;
  background:#FAFCFE;
  border-top:1px solid var(--border);
  font-size:13px;
  color:var(--muted);
}

/* ============ 流程 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:22px;
  counter-reset:step;
}
.step{
  position:relative;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:28px 22px 24px;
  box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.step .num{
  width:40px;
  height:40px;
  border-radius:12px;
  background:var(--accent-soft);
  color:var(--accent-dark);
  font-weight:800;
  font-size:16px;
  display:grid;
  place-items:center;
  margin-bottom:16px;
}
.step h3{font-size:17px;font-weight:800;margin-bottom:10px;}
.step p{font-size:14px;color:var(--muted);line-height:1.8;}
.step::after{
  content:"";
  position:absolute;
  top:48px;
  right:-22px;
  width:22px;
  height:2px;
  background:var(--border);
}
.steps .step:last-child::after{display:none;}

/* ============ FAQ ============ */
.faq-list{max-width:900px;}
.faq-item{
  background:#fff;
  border:1px solid var(--border);
  border-radius:14px;
  margin-bottom:14px;
  box-shadow:0 6px 18px rgba(16,35,58,.05);
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.open{border-color:#BCD8EA;box-shadow:var(--shadow);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 24px;
  background:transparent;
  border:0;
  text-align:left;
  font-size:16.5px;
  font-weight:700;
  color:var(--text);
  cursor:pointer;
}
.faq-q:hover{color:var(--primary);}
.faq-q .icon{
  flex:0 0 28px;
  width:28px;
  height:28px;
  border-radius:9px;
  background:var(--primary-soft);
  color:var(--primary);
  display:grid;
  place-items:center;
  font-size:13px;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.faq-item.open .faq-q .icon{background:var(--accent);color:#fff;transform:rotate(180deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-a-inner{
  padding:0 24px 22px 24px;
  border-left:3px solid var(--accent);
  margin-left:24px;
  padding-left:18px;
  color:var(--muted);
  font-size:14.8px;
  line-height:1.85;
}

/* ============ 表单 ============ */
.cta-panel{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  overflow:hidden;
  display:grid;
  grid-template-columns:1fr 1.15fr;
}
.cta-side{
  background:linear-gradient(160deg,var(--primary) 0%,var(--primary-dark) 100%);
  color:#fff;
  padding:44px 38px;
}
.cta-side h2{font-size:26px;font-weight:800;line-height:1.4;margin-bottom:16px;}
.cta-side p{color:rgba(255,255,255,.82);font-size:15px;line-height:1.85;margin-bottom:24px;}
.cta-side ul{display:grid;gap:12px;}
.cta-side li{display:flex;gap:10px;font-size:14.5px;color:rgba(255,255,255,.9);}
.cta-side li i{color:#FFC48A;margin-top:5px;}
.cta-form{padding:44px 38px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:span 2;}
.field label{font-size:13.5px;font-weight:700;color:var(--text);}
.field input,.field select,.field textarea{
  width:100%;
  padding:12px 14px;
  font-size:14.5px;
  color:var(--text);
  background:#fff;
  border:1px solid var(--border);
  border-radius:10px;
  transition:border-color .2s ease,box-shadow .2s ease;
  font-family:inherit;
}
.field textarea{min-height:110px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(11,92,140,.14);
}
.field.error input,.field.error select{border-color:#D9483B;box-shadow:0 0 0 3px rgba(217,72,59,.12);}
.field .err-text{font-size:12.5px;color:#D9483B;display:none;}
.field.error .err-text{display:block;}
.form-note{font-size:12.5px;color:var(--muted);margin-top:14px;}
.form-msg{
  display:none;
  margin-top:16px;
  padding:12px 16px;
  border-radius:10px;
  font-size:14px;
  font-weight:600;
  background:var(--green-soft);
  color:var(--green);
  border:1px solid #C4E7D6;
}
.form-msg.show{display:block;}

/* ============ 页脚 ============ */
.site-footer{
  background:#0C2233;
  color:rgba(255,255,255,.72);
  padding:64px 0 0;
  margin-top:8px;
}
.site-footer h4{
  color:#fff;
  font-size:15px;
  font-weight:800;
  margin-bottom:18px;
  letter-spacing:.3px;
}
.footer-brand .logo{color:#fff;margin-bottom:18px;}
.footer-brand .logo:hover{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.68);max-width:360px;}
.footer-links{display:grid;gap:12px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:var(--accent);}
.footer-contact{display:grid;gap:12px;}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.72);line-height:1.7;}
.footer-contact i{color:#7FB6D6;margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:52px;
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(255,255,255,.55);
}

/* ============ 响应式 ============ */
@media screen and (max-width:1200px){
  .page-hero h1{font-size:33px;}
  .gear-layout{grid-template-columns:220px 1fr;gap:26px;}
}
@media screen and (max-width:1023px){
  .section{padding:64px 0;}
  .nav-links{
    position:fixed;
    top:0;
    right:0;
    height:100vh;
    width:296px;
    max-width:88vw;
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:92px 20px 28px;
    transform:translateX(102%);
    transition:transform .28s ease;
    box-shadow:-14px 0 40px rgba(16,35,58,.16);
    z-index:60;
    overflow-y:auto;
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-links a{padding:14px 16px;font-size:16px;border-radius:12px;}
  .nav-links a.active{background:var(--primary-soft);}
  .nav-links a.active::after{display:none;}
  .burger{display:grid;place-items:center;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .page-hero{padding:58px 0 62px;}
  .hero-visual img{height:260px;}
  .hero-float{left:12px;bottom:-18px;}
  .hero-tag{right:12px;}
  .gear-layout{grid-template-columns:1fr;}
  .anchor-nav{position:static;}
  .anchor-nav .anchors{display:flex;flex-wrap:wrap;gap:8px;}
  .anchor-nav a{
    margin:0;
    padding:8px 14px;
    background:var(--primary-soft);
    border-radius:999px;
    font-size:13.5px;
    color:var(--primary-dark);
  }
  .anchor-nav a i{display:none;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .step::after{display:none;}
  .cta-panel{grid-template-columns:1fr;}
  .cta-side,.cta-form{padding:34px 26px;}
}
@media screen and (max-width:767px){
  .section{padding:52px 0;}
  .container{padding:0 16px;}
  .page-hero h1{font-size:27px;}
  .page-hero .hero-lead{font-size:15.5px;}
  .section-head h2{font-size:23px;}
  .gear-grid{grid-template-columns:1fr;}
  .gear-card.featured{grid-column:span 1;flex-direction:column;}
  .gear-card.featured .gear-media{width:100%;flex:0 0 auto;}
  .gear-card.featured .gear-media img{height:220px;min-height:0;}
  .gear-card.featured .gear-body{padding:22px;}
  .gear-card.featured .gear-body h3{font-size:20px;}
  .steps{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .field.full{grid-column:span 1;}
  .hero-cta .btn{width:100%;}
  .hero-float{gap:16px;padding:12px 14px;}
  .hero-float .stat b{font-size:18px;}
  .faq-a-inner{margin-left:16px;padding-left:14px;}
  .footer-bottom{justify-content:flex-start;}
}
@media screen and (max-width:520px){
  .page-hero h1{font-size:25px;}
  .hero-points{flex-direction:column;gap:8px;}
  .hero-visual img{height:210px;}
  .hero-tag{top:12px;right:8px;font-size:12px;padding:6px 12px;}
  .cta-side h2{font-size:22px;}
  .faq-q{font-size:15.5px;padding:16px 18px;}
}

/* roulang page: category2 */
:root{
  --brand:#0B5C8C;
  --brand-dark:#084A72;
  --brand-deep:#0C2135;
  --brand-tint:#E7F1F8;
  --accent:#FF7A1A;
  --accent-dark:#E86A0F;
  --accent-tint:#FFF1E5;
  --bg:#F5F8FB;
  --surface:#FFFFFF;
  --ink:#10233A;
  --ink-2:#5A6B7F;
  --line:#DCE6F0;
  --green:#1F9D6B;
  --green-tint:#E8F6F0;
  --yellow:#F4B740;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 8px 24px rgba(16,35,58,.08);
  --shadow-hover:0 16px 36px rgba(16,35,58,.14);
  --container:1240px;
  --sec-gap:80px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700;letter-spacing:-.2px;}
p{margin:0;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:var(--sec-gap) 0;}
.section-tight{padding:56px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--brand);background:var(--brand-tint);border-radius:999px;padding:6px 14px;margin-bottom:16px;}
.section-head h2{font-size:28px;margin-bottom:14px;}
.section-head p{color:var(--ink-2);font-size:16px;}
.text-center{text-align:center;}
.text-center .section-head{margin-left:auto;margin-right:auto;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn i{font-size:14px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(11,92,140,.24);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 10px 22px rgba(11,92,140,.3);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(255,122,26,.26);}
.btn-accent:hover{background:var(--accent-dark);transform:translateY(-2px);box-shadow:0 10px 22px rgba(255,122,26,.32);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-dark);transform:translateY(-2px);}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.5);}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);border-color:#fff;}
.btn-block{width:100%;}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:3px solid rgba(255,122,26,.45);outline-offset:2px;
}
.btn[disabled]{opacity:.5;pointer-events:none;}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;border-radius:999px;padding:5px 12px;line-height:1.5;}
.badge-green{background:var(--green-tint);color:var(--green);}
.badge-accent{background:var(--accent-tint);color:var(--accent-dark);}
.badge-brand{background:var(--brand-tint);color:var(--brand);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 2px 12px rgba(16,35,58,.04);
}
.nav-inner{display:flex;align-items:center;gap:28px;height:74px;}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:21px;font-weight:800;letter-spacing:-.4px;color:var(--ink);}
.logo em{font-style:normal;color:var(--accent);}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#fff;font-size:15px;
}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:74px;
  padding:0 18px;font-size:15.5px;font-weight:600;color:var(--ink-2);
  transition:color .18s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:18px;right:18px;bottom:0;height:3px;
  border-radius:3px 3px 0 0;background:transparent;transition:background .18s ease;
}
.nav-links a:hover{color:var(--brand);}
.nav-links a.active{color:var(--brand);}
.nav-links a.active::after{background:var(--accent);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.burger{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--brand);cursor:pointer;transition:.2s;
}
.burger:hover{border-color:var(--brand);}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:#fff;padding:14px 0 22px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 4px;border-bottom:1px dashed var(--line);
  font-size:16px;font-weight:600;color:var(--ink);
}
.mobile-drawer a.active{color:var(--brand);}
.mobile-drawer a.active i{color:var(--accent);}
.mobile-drawer .drawer-cta{margin-top:18px;}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-2);margin-bottom:18px;}
.breadcrumb a{color:var(--ink-2);transition:color .18s;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{opacity:.55;}
.breadcrumb .current{color:var(--brand);font-weight:600;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--brand-deep);}
.hero-bg{position:absolute;inset:0;}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.42;}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(12,33,53,.94) 0%,rgba(12,33,53,.78) 48%,rgba(12,33,53,.52) 100%);
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.85fr);
  gap:48px;align-items:center;padding:72px 24px 76px;
}
.hero .breadcrumb,.hero .breadcrumb a{color:rgba(255,255,255,.72);}
.hero .breadcrumb .current{color:#fff;}
.hero .breadcrumb a:hover{color:#fff;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.05em;
  color:#FFD5B0;background:rgba(255,122,26,.18);
  border:1px solid rgba(255,122,26,.4);
  border-radius:999px;padding:6px 14px;margin-bottom:20px;
}
.hero h1{font-size:38px;line-height:1.28;color:#fff;margin-bottom:18px;letter-spacing:-.5px;}
.hero-sub{font-size:17px;line-height:1.85;color:rgba(255,255,255,.82);max-width:640px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:30px;}
.hero-points li{display:flex;align-items:center;gap:9px;font-size:14.5px;color:rgba(255,255,255,.86);}
.hero-points i{color:var(--accent);font-size:13px;}
.hero-panel{
  background:#fff;border-radius:var(--radius);padding:26px 24px;
  box-shadow:0 20px 48px rgba(4,18,32,.32);
}
.hero-panel h2{font-size:17px;margin-bottom:6px;}
.hero-panel .panel-hint{font-size:13px;color:var(--ink-2);margin-bottom:18px;}
.panel-metrics{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:20px;}
.panel-metrics li{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-sm);padding:12px 14px;}
.panel-metrics strong{display:block;font-size:22px;color:var(--brand);letter-spacing:-.5px;}
.panel-metrics span{font-size:12.5px;color:var(--ink-2);}
.panel-note{display:flex;gap:10px;font-size:13px;color:var(--ink-2);background:var(--accent-tint);border-radius:var(--radius-sm);padding:12px 14px;margin-bottom:18px;}
.panel-note i{color:var(--accent);margin-top:3px;}

/* ---------- 数据条 ---------- */
.statbar{background:var(--brand-deep);padding:44px 0;}
.statbar-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat-item{border-left:2px solid rgba(255,122,26,.55);padding-left:18px;}
.stat-item strong{display:block;font-size:32px;color:#fff;letter-spacing:-1px;line-height:1.2;}
.stat-item span{font-size:14px;color:rgba(255,255,255,.68);}

/* ---------- 时间线 ---------- */
.timeline{position:relative;padding:8px 0 0;}
.timeline::before{
  content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;
  transform:translateX(-50%);
  background:linear-gradient(180deg,rgba(11,92,140,.06),var(--line) 12%,var(--line) 88%,rgba(11,92,140,.06));
}
.tl-item{display:grid;grid-template-columns:1fr 110px 1fr;align-items:center;margin-bottom:30px;}
.tl-card{
  grid-column:1;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 26px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease;
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.tl-item:nth-child(even) .tl-card{grid-column:3;}
.tl-node{grid-column:2;justify-self:center;display:flex;flex-direction:column;align-items:center;gap:8px;}
.tl-dot{
  width:42px;height:42px;border-radius:50%;background:#fff;
  border:2px solid var(--accent);color:var(--accent-dark);
  display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;
  box-shadow:0 6px 16px rgba(255,122,26,.22);
}
.tl-card h3{font-size:19px;margin-bottom:8px;}
.tl-card p{font-size:15px;color:var(--ink-2);}
.tl-meta{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:600;color:var(--brand);background:var(--brand-tint);border-radius:999px;padding:4px 12px;margin-bottom:12px;}

/* ---------- 案例交错 ---------- */
.case-row{
  display:grid;grid-template-columns:1.02fr .98fr;gap:40px;align-items:center;
  margin-bottom:56px;
}
.case-row:last-child{margin-bottom:0;}
.case-row.reverse .case-media{order:2;}
.case-row.reverse .case-body{order:1;}
.case-media{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);}
.case-media img{width:100%;height:340px;object-fit:cover;transition:transform .4s ease;}
.case-row:hover .case-media img{transform:scale(1.03);}
.case-tag{
  position:absolute;left:16px;top:16px;
  background:rgba(12,33,53,.86);color:#fff;
  font-size:12.5px;font-weight:600;border-radius:999px;padding:6px 14px;
}
.case-body h3{font-size:22px;margin-bottom:12px;}
.case-body p{color:var(--ink-2);font-size:15.5px;margin-bottom:16px;}
.case-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:20px;}
.case-facts li{border-top:2px solid var(--line);padding-top:12px;}
.case-facts strong{display:block;font-size:20px;color:var(--brand);letter-spacing:-.5px;}
.case-facts span{font-size:12.5px;color:var(--ink-2);}

/* ---------- 成效 / 评价 ---------- */
.evidence{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.evidence-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.evidence-card{
  border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;background:#fff;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.evidence-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#C9DAE8;}
.score-row{display:flex;align-items:baseline;gap:8px;margin-bottom:12px;}
.score-row strong{font-size:34px;color:var(--brand);letter-spacing:-1px;line-height:1;}
.score-row span{font-size:13px;color:var(--ink-2);}
.stars{color:var(--yellow);font-size:13px;letter-spacing:2px;margin-bottom:14px;}
.evidence-card p{font-size:15px;color:var(--ink-2);}
.evidence-card .who{display:block;margin-top:16px;font-size:13px;font-weight:600;color:var(--ink);}

/* ---------- 相关推荐 ---------- */
.rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rec-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease;display:flex;flex-direction:column;
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.rec-card img{width:100%;height:186px;object-fit:cover;}
.rec-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.rec-body h3{font-size:18px;margin-bottom:10px;}
.rec-body p{font-size:14.5px;color:var(--ink-2);flex:1;}
.rec-meta{display:flex;align-items:center;justify-content:space-between;margin-top:16px;font-size:13px;color:var(--ink-2);}
.rec-meta .more{color:var(--brand);font-weight:600;}
.rec-meta .more:hover{color:var(--accent);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);margin-bottom:14px;overflow:hidden;transition:box-shadow .2s ease;}
.faq-item.open{box-shadow:var(--shadow);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:none;border:0;cursor:pointer;text-align:left;
  padding:20px 24px;font-size:17px;font-weight:700;color:var(--ink);
}
.faq-q:hover{color:var(--brand);}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  background:var(--brand-tint);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:12px;transition:.25s;
}
.faq-item.open .faq-icon{background:var(--accent);color:#fff;transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;}
.faq-a-inner{padding:0 24px 22px;border-left:3px solid var(--accent);margin-left:24px;padding-left:18px;color:var(--ink-2);font-size:15.5px;}

/* ---------- CTA + 表单 ---------- */
.cta-band{background:linear-gradient(120deg,var(--brand) 0%,var(--brand-dark) 100%);color:#fff;padding:56px 0;}
.cta-band-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;}
.cta-band h2{font-size:26px;margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.82);font-size:15.5px;max-width:640px;}
.cta-band .btn-row{display:flex;gap:14px;flex-wrap:wrap;}

.contact-section{background:var(--bg);}
.contact-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:44px;align-items:start;}
.contact-intro h2{font-size:27px;margin-bottom:14px;}
.contact-intro p{color:var(--ink-2);font-size:15.5px;margin-bottom:24px;}
.contact-list li{display:flex;gap:14px;align-items:flex-start;padding:14px 0;border-bottom:1px dashed var(--line);}
.contact-list i{width:36px;height:36px;flex:0 0 auto;border-radius:10px;background:var(--brand-tint);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:14px;}
.contact-list strong{display:block;font-size:15px;}
.contact-list span{font-size:13.5px;color:var(--ink-2);}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 28px;box-shadow:var(--shadow);}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;}
.field label .req{color:var(--accent);}
.field input,.field select,.field textarea{
  width:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:12px 14px;font-size:15px;color:var(--ink);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{min-height:112px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(11,92,140,.14);
}
.field .hint{font-size:12.5px;color:var(--ink-2);margin-top:6px;}
.field.error input,.field.error select{border-color:#D64545;box-shadow:0 0 0 3px rgba(214,69,69,.12);}
.field .err-msg{display:none;font-size:12.5px;color:#D64545;margin-top:6px;}
.field.error .err-msg{display:block;}
.form-tip{font-size:13px;color:var(--ink-2);margin-top:14px;}
.form-ok{display:none;margin-top:16px;background:var(--green-tint);color:var(--green);border-radius:var(--radius-sm);padding:12px 16px;font-size:14px;font-weight:600;}
.form-ok.show{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.78);padding:60px 0 0;}
.site-footer h4{font-size:16px;color:#fff;margin-bottom:18px;}
.footer-brand .logo{color:#fff;margin-bottom:16px;}
.footer-brand .logo-mark{background:linear-gradient(135deg,var(--accent) 0%,var(--accent-dark) 100%);}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14.5px;color:rgba(255,255,255,.72);transition:color .18s ease,transform .18s ease;display:inline-block;}
.footer-links a:hover{color:var(--accent);transform:translateX(3px);}
.footer-contact li{display:flex;gap:11px;align-items:flex-start;font-size:14.5px;color:rgba(255,255,255,.72);margin-bottom:12px;}
.footer-contact i{color:var(--accent);margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.13);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease;}
.reveal.is-visible{opacity:1;transform:translateY(0);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--sec-gap:64px;}
  .hero h1{font-size:34px;}
  .nav-links a{padding:0 13px;font-size:15px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .burger{display:inline-flex;}
  .hero-inner{grid-template-columns:1fr;gap:34px;padding:56px 24px 60px;}
  .hero h1{font-size:30px;}
  .statbar-grid{grid-template-columns:1fr 1fr;gap:20px;}
  .timeline::before{left:21px;transform:none;}
  .tl-item{grid-template-columns:52px 1fr;margin-bottom:22px;}
  .tl-item .tl-node{grid-column:1;grid-row:1;align-items:flex-start;}
  .tl-item .tl-card,
  .tl-item:nth-child(even) .tl-card{grid-column:2;grid-row:1;}
  .case-row,
  .case-row.reverse{grid-template-columns:1fr;gap:24px;}
  .case-row.reverse .case-media{order:0;}
  .case-row.reverse .case-body{order:0;}
  .case-media img{height:290px;}
  .evidence-grid,.rec-grid{grid-template-columns:1fr 1fr;}
  .contact-grid{grid-template-columns:1fr;gap:32px;}
}
@media (max-width:639px){
  :root{--sec-gap:48px;}
  .container{padding:0 16px;}
  .section-tight{padding:40px 0;}
  .hero-inner{padding:40px 16px 48px;}
  .hero h1{font-size:26px;line-height:1.34;}
  .hero-sub{font-size:15.5px;}
  .hero-cta .btn{width:100%;}
  .panel-metrics{grid-template-columns:1fr 1fr;}
  .statbar-grid{grid-template-columns:1fr;gap:18px;}
  .stat-item{padding-left:14px;}
  .stat-item strong{font-size:26px;}
  .section-head h2{font-size:23px;}
  .evidence-grid,.rec-grid,.form-row,.case-facts{grid-template-columns:1fr;}
  .case-media img{height:220px;}
  .tl-card{padding:20px 18px;}
  .faq-q{padding:17px 18px;font-size:15.5px;}
  .faq-a-inner{padding:0 18px 20px 14px;margin-left:18px;}
  .form-card{padding:22px 18px;}
  .cta-band .btn{width:100%;}
}

/* roulang page: category3 */
:root{
  --primary:#0B5C8C;
  --primary-dark:#084A72;
  --primary-soft:#E8F1F7;
  --accent:#FF7A1A;
  --accent-dark:#E86A0F;
  --accent-soft:#FFF1E4;
  --bg:#F5F8FB;
  --surface:#FFFFFF;
  --text:#10233A;
  --muted:#5A6B7F;
  --border:#DCE6F0;
  --green:#1F9D6B;
  --green-soft:#E6F6EF;
  --yellow:#F4B740;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 8px 24px rgba(16,35,58,.08);
  --shadow-hover:0 16px 36px rgba(16,35,58,.14);
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--accent);}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--text);letter-spacing:.2px;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:16px;}
:focus-visible{outline:3px solid rgba(255,122,26,.55);outline-offset:2px;}

.container{
  width:100%;
  max-width:1260px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:80px 0;}
.section-tight{padding:56px 0;}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head h2{font-size:28px;margin-bottom:12px;}
.section-head p{color:var(--muted);margin:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--primary);
  background:var(--primary-soft);
  border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.eyebrow i{color:var(--accent);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;line-height:1.2;
  transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);color:#fff;box-shadow:0 10px 22px rgba(11,92,140,.28);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:var(--accent-dark);color:#fff;box-shadow:0 10px 22px rgba(255,122,26,.32);}
.btn-outline{background:#fff;color:var(--primary);border-color:var(--primary);}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary-dark);}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.6);}
.btn-ghost:hover{background:rgba(255,255,255,.24);color:#fff;}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none;}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  border-radius:999px;padding:4px 12px;font-size:12.5px;font-weight:600;line-height:1.5;
}
.badge-primary{background:var(--primary-soft);color:var(--primary-dark);}
.badge-accent{background:var(--accent-soft);color:var(--accent-dark);}
.badge-green{background:var(--green-soft);color:var(--green);}
.badge-outline{background:#fff;color:var(--muted);border:1px solid var(--border);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:#fff;border-bottom:1px solid var(--border);
  box-shadow:0 2px 12px rgba(16,35,58,.04);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--text);letter-spacing:.4px;}
.logo:hover{color:var(--text);}
.logo em{font-style:normal;color:var(--accent);}
.logo-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--primary) 0%,#0E74AE 100%);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:15px;
}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
  position:relative;display:inline-block;
  padding:10px 14px;font-size:15px;font-weight:600;color:var(--muted);
  border-radius:8px;
}
.nav-links a:hover{color:var(--primary);background:var(--primary-soft);}
.nav-links a.active{color:var(--primary);}
.nav-links a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;
  border-radius:3px;background:var(--accent);
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.burger{
  display:none;background:#fff;border:1px solid var(--border);border-radius:10px;
  width:42px;height:42px;color:var(--text);cursor:pointer;
}
.burger:hover{border-color:var(--primary);color:var(--primary);}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{background:#fff;border-bottom:1px solid var(--border);}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);padding:14px 0;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:#B8C6D6;}
.breadcrumb .current{color:var(--primary);font-weight:600;}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;
  background-image:url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;
  color:#fff;
  overflow:hidden;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(8,45,72,.90) 0%,rgba(11,92,140,.78) 52%,rgba(8,45,72,.58) 100%);
}
.cat-hero .container{position:relative;z-index:2;padding-top:56px;padding-bottom:56px;}
.cat-hero-inner{max-width:760px;}
.cat-hero .eyebrow{background:rgba(255,255,255,.16);color:#fff;}
.cat-hero h1{font-size:36px;color:#fff;margin-bottom:16px;}
.cat-hero h1 span{color:#FFC48A;}
.cat-hero p.lead{font-size:16.5px;color:rgba(255,255,255,.88);margin-bottom:26px;max-width:660px;}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 数据摘要条 ---------- */
.stat-strip{
  background:#fff;border-bottom:1px solid var(--border);
}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding:26px 0;}
.stat-item{display:flex;align-items:center;gap:14px;}
.stat-icon{
  width:46px;height:46px;flex:0 0 46px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-soft);color:var(--primary);font-size:18px;
}
.stat-item strong{display:block;font-size:20px;line-height:1.2;}
.stat-item span{font-size:13.5px;color:var(--muted);}

/* ---------- 主体两栏 ---------- */
.support-layout{
  display:grid;grid-template-columns:266px minmax(0,1fr);gap:36px;align-items:start;
}
.toc{position:sticky;top:96px;}
.toc-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:22px 20px;
}
.toc-card h3{font-size:15px;margin-bottom:14px;color:var(--text);display:flex;align-items:center;gap:8px;}
.toc-card h3 i{color:var(--accent);}
.toc-list li+li{margin-top:4px;}
.toc-list a{
  display:flex;align-items:center;gap:10px;
  padding:9px 12px;border-radius:8px;font-size:14.5px;color:var(--muted);
  border-left:3px solid transparent;
}
.toc-list a:hover{background:var(--primary-soft);color:var(--primary);border-left-color:var(--accent);}
.toc-help{
  margin-top:18px;padding:16px;border-radius:12px;
  background:var(--accent-soft);color:var(--accent-dark);font-size:13.5px;line-height:1.7;
}
.toc-help strong{display:block;font-size:14.5px;margin-bottom:6px;color:var(--accent-dark);}
.toc-help a{display:inline-block;margin-top:10px;font-weight:600;color:var(--accent-dark);}

.content-col{min-width:0;}
.content-block{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:34px 34px 30px;
}
.content-block + .content-block{margin-top:26px;}
.content-block h2{font-size:25px;margin-bottom:14px;display:flex;align-items:center;gap:10px;}
.content-block h2 i{color:var(--accent);font-size:20px;}
.content-block h3{font-size:19px;margin:26px 0 10px;}
.content-block p{color:var(--muted);}
.content-block p strong{color:var(--text);}
.anchor-offset{scroll-margin-top:104px;}

/* 概览小卡 */
.mini-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:22px;}
.mini-card{
  border:1px solid var(--border);border-radius:14px;padding:20px;background:#FBFDFF;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#C6DAEA;}
.mini-card i{
  width:40px;height:40px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  background:var(--primary-soft);color:var(--primary);font-size:17px;margin-bottom:12px;
}
.mini-card h4{font-size:16.5px;margin-bottom:8px;}
.mini-card p{font-size:14.5px;margin:0;line-height:1.7;}

/* 图文区 */
.figure-row{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center;margin:22px 0 6px;}
.figure-row img{border-radius:14px;box-shadow:var(--shadow);width:100%;height:100%;object-fit:cover;max-height:300px;}
.figure-note{font-size:13px;color:var(--muted);margin-top:8px;}
.check-list li{
  position:relative;padding-left:28px;margin-bottom:10px;color:var(--muted);font-size:15px;
}
.check-list li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:1px;color:var(--green);font-size:13px;
}

/* 表格 */
.table-wrap{overflow-x:auto;margin-top:20px;border:1px solid var(--border);border-radius:14px;}
table.size-table{width:100%;border-collapse:collapse;min-width:640px;font-size:14.5px;background:#fff;}
table.size-table thead th{
  background:var(--primary);color:#fff;text-align:left;padding:14px 16px;font-weight:600;white-space:nowrap;
}
table.size-table tbody td{padding:13px 16px;border-top:1px solid var(--border);color:var(--muted);}
table.size-table tbody tr:nth-child(even) td{background:#FAFCFE;}
table.size-table tbody td:first-child{font-weight:700;color:var(--text);}
.table-tip{font-size:13px;color:var(--muted);margin-top:12px;}

/* 时间线 */
.timeline{margin-top:24px;border-left:2px dashed #CFE0EC;padding-left:26px;}
.timeline-item{position:relative;padding-bottom:24px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{
  content:"";position:absolute;left:-34px;top:6px;width:14px;height:14px;border-radius:50%;
  background:#fff;border:3px solid var(--accent);
}
.timeline-item h4{font-size:16.5px;margin-bottom:6px;}
.timeline-item p{font-size:14.5px;margin:0;color:var(--muted);}
.timeline-item .step-no{
  font-size:12.5px;font-weight:700;color:var(--accent-dark);background:var(--accent-soft);
  border-radius:999px;padding:2px 10px;margin-right:8px;
}

/* FAQ */
.faq-list{margin-top:22px;}
.faq-item{
  border:1px solid var(--border);border-left:3px solid var(--border);
  border-radius:12px;background:#fff;margin-bottom:12px;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item[open]{border-left-color:var(--accent);box-shadow:var(--shadow);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:16px 52px 16px 18px;position:relative;
  font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-item summary::after{
  content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:600;color:var(--accent);line-height:1;
}
.faq-item[open] summary::after{content:"–";}
.faq-item .faq-answer{padding:0 18px 18px;color:var(--muted);font-size:14.8px;line-height:1.8;}
.faq-item .faq-answer p{margin:0;}

/* 表单 */
.form-block{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;
}
.form-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);}
.form-aside{
  background:linear-gradient(160deg,var(--primary) 0%,#0E6EA5 100%);
  color:#fff;padding:38px 32px;
}
.form-aside h2{color:#fff;font-size:24px;margin-bottom:14px;}
.form-aside p{color:rgba(255,255,255,.85);font-size:14.8px;}
.form-aside ul li{
  display:flex;gap:10px;align-items:flex-start;font-size:14.5px;
  color:rgba(255,255,255,.9);margin-top:12px;
}
.form-aside ul li i{color:#FFC48A;margin-top:4px;}
.form-panel{padding:36px 34px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:7px;color:var(--text);}
.field label .req{color:#D9534F;}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:var(--radius-sm);
  background:#fff;color:var(--text);transition:border-color .18s ease,box-shadow .18s ease;
}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--primary);box-shadow:0 0 0 4px rgba(11,92,140,.14);outline:none;
}
.field textarea{min-height:110px;resize:vertical;}
.field .hint{font-size:12.5px;color:var(--muted);margin-top:6px;}
.field .error-text{display:none;font-size:12.5px;color:#D9534F;margin-top:6px;}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:#D9534F;}
.field.has-error .error-text{display:block;}
.form-note{font-size:12.5px;color:var(--muted);margin-top:14px;}
.form-success{
  display:none;margin-top:16px;padding:14px 16px;border-radius:12px;
  background:var(--green-soft);color:var(--green);font-size:14.5px;font-weight:600;
}
.form-success.show{display:block;}

/* 底部 CTA */
.cta-band{
  background:linear-gradient(115deg,#083D5F 0%,var(--primary) 60%,#0E6EA5 100%);
  color:#fff;border-radius:20px;padding:44px 40px;
  display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;
  box-shadow:0 18px 40px rgba(8,61,95,.24);
}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.85);margin:0;max-width:620px;font-size:15px;}
.cta-band-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* 页脚 */
.site-footer{background:#0C2237;color:#AFC2D4;margin-top:80px;padding-top:60px;font-size:14.5px;}
.site-footer h4{color:#fff;font-size:15.5px;margin-bottom:16px;}
.footer-brand p{color:#9FB4C8;font-size:14px;margin-top:16px;line-height:1.8;}
.site-footer .logo{color:#fff;}
.site-footer .logo:hover{color:#fff;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:#AFC2D4;}
.footer-links a:hover{color:var(--accent);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;margin-bottom:11px;color:#9FB4C8;line-height:1.65;}
.footer-contact li i{color:var(--accent);margin-top:4px;width:16px;text-align:center;}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#8CA3B8;
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-links{
    position:absolute;top:72px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;border-bottom:1px solid var(--border);
    padding:12px 16px 18px;box-shadow:0 14px 28px rgba(16,35,58,.12);
    display:none;
  }
  .nav-links.open{display:flex;}
  .nav-links a{padding:12px 14px;font-size:15.5px;}
  .nav-links a.active::after{left:14px;right:auto;width:22px;bottom:6px;}
  .burger{display:inline-flex;align-items:center;justify-content:center;}
  .nav-actions .btn-primary{display:none;}
  .support-layout{grid-template-columns:1fr;gap:22px;}
  .toc{position:static;}
  .toc-card{padding:16px;}
  .toc-card h3{margin-bottom:10px;}
  .toc-list{display:flex;gap:10px;overflow-x:auto;padding-bottom:6px;-webkit-overflow-scrolling:touch;}
  .toc-list li{flex:0 0 auto;}
  .toc-list a{
    border-left:none;border:1px solid var(--border);border-radius:999px;
    padding:8px 15px;font-size:13.8px;white-space:nowrap;background:#fff;
  }
  .toc-list a:hover{border-color:var(--accent);}
  .toc-help{display:none;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .form-grid{grid-template-columns:1fr;}
  .cat-hero h1{font-size:30px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .section-tight{padding:44px 0;}
  .logo{font-size:18px;}
  .cat-hero .container{padding-top:40px;padding-bottom:40px;}
  .cat-hero h1{font-size:26px;}
  .cat-hero p.lead{font-size:15px;}
  .content-block{padding:24px 20px;}
  .content-block h2{font-size:21px;}
  .mini-grid{grid-template-columns:1fr;}
  .figure-row{grid-template-columns:1fr;}
  .cta-band{padding:32px 22px;border-radius:16px;}
  .cta-band h2{font-size:22px;}
  .cta-band-actions{width:100%;}
  .cta-band-actions .btn{flex:1 1 auto;}
  .form-aside,.form-panel{padding:26px 20px;}
  .stat-item strong{font-size:17px;}
  .site-footer{margin-top:56px;padding-top:44px;}
}
@media (max-width:519px){
  .stat-grid{grid-template-columns:1fr;}
  .btn{padding:12px 20px;font-size:14.5px;}
  .footer-bottom{flex-direction:column;gap:6px;}
}