/* roulang page: index */
:root{
  --brand:#1F5FE0;
  --brand-deep:#1748B0;
  --brand-soft:#E8F0FF;
  --cyan:#14B8C6;
  --cyan-soft:#EDF9FA;
  --orange:#FF7A2F;
  --bg:#F5F7FC;
  --card:#FFFFFF;
  --alt:#EEF3FF;
  --ink:#101828;
  --ink-2:#475467;
  --ink-3:#98A2B3;
  --line:#E4E9F2;
  --white:#FFFFFF;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-chip:999px;
  --sh-1:0 1px 2px rgba(16,24,40,.04);
  --sh-2:0 8px 24px rgba(16,24,40,.06);
  --sh-3:0 14px 36px rgba(31,95,224,.14);
  --sec:96px;
  --ease:.2s ease;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:.2px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;}

/* ---------- 按钮 ---------- */
.btn-brand{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand);color:#fff;
  border:1px solid var(--brand);
  border-radius:var(--r-btn);
  padding:11px 22px;font-size:15px;font-weight:600;
  box-shadow:var(--sh-1);
  transition:all var(--ease);
}
.btn-brand:hover{background:#2A6AEE;border-color:#2A6AEE;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;color:var(--brand-deep);
  border:1px solid var(--brand);
  border-radius:var(--r-btn);
  padding:11px 22px;font-size:15px;font-weight:600;
  transition:all var(--ease);
}
.btn-ghost:hover{background:rgba(31,95,224,.06);color:var(--brand-deep);transform:translateY(-1px);}
.btn-warm{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--orange);color:#fff;border:1px solid var(--orange);
  border-radius:var(--r-btn);padding:11px 22px;font-size:15px;font-weight:600;
  transition:all var(--ease);
}
.btn-warm:hover{background:#FF8B4A;border-color:#FF8B4A;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-weight:600;font-size:15px;transition:all var(--ease);
}
.link-arrow i{transition:transform var(--ease);}
.link-arrow:hover i{transform:translateX(3px);}

/* ---------- 头部 ---------- */
.site-header{position:relative;z-index:100;background:#fff;}
.brand-bar{height:72px;border-bottom:1px solid var(--line);background:#fff;}
.brand-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px;}
.logo{display:flex;align-items:center;gap:12px;color:var(--ink);}
.logo:hover{color:var(--ink);}
.logo-mark{
  width:40px;height:40px;border-radius:12px;flex:0 0 40px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--cyan) 100%);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:700;box-shadow:var(--sh-2);
}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text strong{font-size:17px;font-weight:700;letter-spacing:.2px;}
.logo-text em{font-style:normal;font-size:12px;color:var(--ink-3);letter-spacing:.06em;}
.brand-tags{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.mini-tag{
  font-size:13px;color:var(--ink-2);background:var(--brand-soft);
  border-radius:var(--r-chip);padding:5px 13px;white-space:nowrap;
}
.brand-actions{display:flex;align-items:center;gap:18px;}
.brand-actions .btn-brand{padding:9px 18px;font-size:14px;}

.channel-bar{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.channel-bar.is-stuck{box-shadow:0 6px 20px rgba(16,24,40,.08);}
.channel-scroll{display:flex;align-items:center;gap:10px;height:58px;overflow-x:auto;scrollbar-width:none;}
.channel-scroll::-webkit-scrollbar{display:none;}
.channel{
  flex:0 0 auto;font-size:14.5px;font-weight:600;color:var(--ink-2);
  background:var(--bg);border:1px solid var(--line);
  border-radius:var(--r-chip);padding:8px 20px;
  transition:all var(--ease);white-space:nowrap;
}
.channel:hover{color:var(--brand-deep);background:var(--brand-soft);border-color:var(--brand-soft);}
.channel.active{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:var(--sh-2);}

/* ---------- HERO ---------- */
.hero{padding:72px 0 64px;background:linear-gradient(180deg,#F8FAFF 0%,var(--bg) 100%);position:relative;overflow:hidden;}
.hero::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,95,224,.10) 0%,rgba(31,95,224,0) 70%);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;font-weight:600;color:var(--brand-deep);
  background:var(--brand-soft);border-radius:var(--r-chip);padding:6px 14px;margin-bottom:20px;
}
.hero h1{font-size:44px;line-height:1.2;font-weight:800;max-width:560px;}
.hero h1 .hl{color:var(--brand);}
.hero-sub{margin-top:18px;font-size:16.5px;color:var(--ink-2);max-width:540px;}
.hero-cta{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap;}
.hero-visual{position:relative;}
.hero-figure{
  border-radius:20px;overflow:hidden;box-shadow:var(--sh-3);
  background:linear-gradient(135deg,var(--brand-soft) 0%,var(--cyan-soft) 100%);
  aspect-ratio:4/3;
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-figure.is-empty{background-image:radial-gradient(rgba(31,95,224,.14) 1px,transparent 1px);background-size:16px 16px;}
.hero-note{
  margin-top:-26px;position:relative;z-index:2;margin-left:24px;margin-right:24px;
  background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--sh-2);
  padding:14px 18px;display:flex;flex-wrap:wrap;gap:10px 18px;
}
.hero-note span{font-size:13.5px;color:var(--ink-2);display:inline-flex;align-items:center;gap:7px;}
.hero-note i{color:var(--cyan);font-size:13px;}

.metric-band{margin-top:64px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-2);padding:26px 10px;}
.metric{text-align:center;padding:6px 12px;border-right:1px solid var(--line);height:100%;}
.metric:last-child{border-right:none;}
.metric b{display:block;font-size:28px;font-weight:800;color:var(--brand);line-height:1.3;font-family:Inter,system-ui,sans-serif;}
.metric span{font-size:14px;color:var(--ink-2);}

/* ---------- 板块通用 ---------- */
.section{padding:var(--sec) 0;}
.section-alt{background:var(--alt);}
.section-soft{background:var(--cyan-soft);}
.sec-head{max-width:720px;margin-bottom:44px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-label{font-size:13px;letter-spacing:.08em;font-weight:700;color:var(--cyan);margin-bottom:12px;display:block;}
.sec-head h2{font-size:30px;line-height:1.3;}
.sec-head p{margin-top:14px;color:var(--ink-2);font-size:16px;}

/* ---------- 功能分组 ---------- */
.feature-wide{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-2);padding:34px;display:grid;grid-template-columns:1.05fr .95fr;gap:34px;
  align-items:center;margin-bottom:24px;transition:all var(--ease);
}
.feature-wide:hover{box-shadow:var(--sh-3);transform:translateY(-3px);}
.feature-wide h3{font-size:23px;margin-bottom:12px;}
.feature-wide p{color:var(--ink-2);font-size:15.5px;}
.feature-wide .cover{border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/10;background:var(--brand-soft);}
.feature-wide .cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.feature-wide:hover .cover img{transform:scale(1.03);}
.num{display:block;font-size:14px;font-weight:800;color:var(--cyan);letter-spacing:.14em;margin-bottom:10px;}
.feature-mini{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:26px;height:100%;transition:all var(--ease);
}
.feature-mini:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D5E0F5;}
.feature-mini h3{font-size:18.5px;margin-bottom:10px;}
.feature-mini p{color:var(--ink-2);font-size:15px;}
.tick-list{margin-top:16px;}
.tick-list li{position:relative;padding-left:26px;font-size:14.5px;color:var(--ink-2);margin-bottom:9px;line-height:1.7;}
.tick-list li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:1px;color:var(--cyan);font-size:12px;
}
.tick-list.warm li::before{color:var(--orange);}

/* ---------- 使用场景 ---------- */
.scene-tabs{display:flex;flex-direction:column;gap:10px;}
.scene-tab{
  text-align:left;background:transparent;border:1px solid var(--line);border-left:4px solid transparent;
  border-radius:12px;padding:14px 18px;font-size:15.5px;font-weight:600;color:var(--ink-2);
  transition:all var(--ease);
}
.scene-tab:hover{background:#fff;color:var(--brand-deep);}
.scene-tab.active{
  background:#fff;color:var(--brand-deep);border-left-color:var(--brand);
  box-shadow:var(--sh-2);border-color:var(--line);
}
.scene-panel{display:none;}
.scene-panel.active{display:block;animation:fadeUp .3s ease;}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:translateY(0);}}
.scene-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-2);padding:30px;}
.scene-card h3{font-size:22px;margin-bottom:12px;}
.scene-card .cover{border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/9;margin:18px 0 20px;background:var(--brand-soft);}
.scene-card .cover img{width:100%;height:100%;object-fit:cover;}

/* ---------- 使用情形卡片 ---------- */
.tile{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;transition:all var(--ease);height:100%;
}
.tile:hover{transform:translateY(-4px);box-shadow:var(--sh-3);}
.tile .cover{aspect-ratio:16/9;overflow:hidden;background:var(--brand-soft);}
.tile .cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.tile:hover .cover img{transform:scale(1.03);}
.tile-body{padding:24px;}
.tile-body h3{font-size:18.5px;margin-bottom:10px;transition:color var(--ease);}
.tile:hover .tile-body h3{color:var(--brand-deep);}
.tile-body p{font-size:15px;color:var(--ink-2);}
.tag{
  display:inline-block;font-size:12.5px;font-weight:600;color:var(--brand-deep);
  background:var(--brand-soft);border-radius:var(--r-chip);padding:4px 12px;margin-bottom:12px;
}
.tag.cyan{color:#0E7E89;background:var(--cyan-soft);}
.tile-meta{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:13.5px;color:var(--ink-3);display:flex;align-items:center;gap:8px;}
.offset-col{margin-top:32px;}

/* ---------- 最新信息 ---------- */
.news-main{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-2);overflow:hidden;height:100%;transition:all var(--ease);
}
.news-main:hover{transform:translateY(-3px);box-shadow:var(--sh-3);}
.news-main .cover{aspect-ratio:16/10;overflow:hidden;background:var(--brand-soft);}
.news-main .cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.news-main:hover .cover img{transform:scale(1.03);}
.news-main .body{padding:26px;}
.news-main h3{font-size:21px;line-height:1.45;margin:10px 0 12px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-main p{font-size:15px;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-item{
  display:flex;gap:16px;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:16px;transition:all var(--ease);height:100%;
}
.news-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D5E0F5;}
.news-item .thumb{
  flex:0 0 96px;width:96px;height:72px;border-radius:10px;overflow:hidden;background:var(--brand-soft);
}
.news-item .thumb img{width:100%;height:100%;object-fit:cover;}
.news-item h4{font-size:15.5px;line-height:1.5;margin:6px 0 6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-item h4 a{color:var(--ink);}
.news-item:hover h4 a{color:var(--brand-deep);}
.news-item .sub{font-size:13.5px;color:var(--ink-3);
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.empty-state{
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);
  padding:52px 24px;text-align:center;color:var(--ink-2);
}
.empty-state i{font-size:34px;color:var(--ink-3);margin-bottom:14px;display:block;}
.empty-state p{font-size:15.5px;}

/* ---------- 方案档位 ---------- */
.tier{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px 26px;height:100%;position:relative;transition:all var(--ease);box-shadow:var(--sh-1);
}
.tier:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}
.tier.featured{
  border:1px solid var(--brand);box-shadow:var(--sh-3);transform:translateY(-16px);
  padding-top:38px;
}
.tier.featured:hover{transform:translateY(-19px);}
.tier-badge{
  position:absolute;top:-13px;left:26px;background:var(--orange);color:#fff;
  font-size:12.5px;font-weight:700;border-radius:var(--r-chip);padding:4px 14px;
}
.tier h3{font-size:20px;}
.tier .for{font-size:14.5px;color:var(--ink-2);margin-top:8px;min-height:44px;}
.tier .price{margin:18px 0 6px;font-size:26px;font-weight:800;color:var(--brand);font-family:Inter,system-ui,sans-serif;}
.tier .price small{font-size:13px;font-weight:500;color:var(--ink-3);margin-left:6px;}
.tier .btn-brand,.tier .btn-ghost{width:100%;justify-content:center;margin-top:22px;}
.compare-bar{
  margin-top:34px;background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:16px 22px;display:flex;align-items:center;gap:14px;color:var(--ink-2);font-size:14.5px;box-shadow:var(--sh-1);
}
.compare-bar i{color:var(--cyan);}

/* ---------- FAQ ---------- */
.brand-accordion .accordion-item{
  border:none;border-radius:0;margin-bottom:12px;background:transparent;
}
.brand-accordion .accordion-header{margin:0;}
.brand-accordion .accordion-button{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  font-size:17px;font-weight:600;color:var(--ink);
  padding:18px 52px 18px 20px;box-shadow:var(--sh-1);
  transition:all var(--ease);position:relative;
}
.brand-accordion .accordion-button:not(.collapsed){
  background:#fff;color:var(--brand-deep);box-shadow:var(--sh-2);border-color:#D5E0F5;
}
.brand-accordion .accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;
  background:var(--brand);border-radius:0 4px 4px 0;
}
.brand-accordion .accordion-button:focus{box-shadow:none;outline:2px solid var(--brand);outline-offset:2px;}
.brand-accordion .accordion-button::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  background-image:none;width:auto;height:auto;transform:none;font-size:13px;color:var(--ink-3);
  position:absolute;right:22px;top:50%;margin-top:-8px;transition:transform var(--ease),color var(--ease);
}
.brand-accordion .accordion-button:not(.collapsed)::after{transform:rotate(180deg);color:var(--brand);}
.brand-accordion .accordion-body{padding:16px 22px 4px;color:var(--ink-2);font-size:15.5px;line-height:1.9;}

/* ---------- 转化带 ---------- */
.cta-band{
  background:linear-gradient(100deg,rgba(31,95,224,.06) 0%,rgba(20,184,198,.08) 100%);
  border:1px solid var(--line);border-radius:20px;padding:44px;display:flex;
  align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{font-size:26px;line-height:1.35;}
.cta-band p{margin-top:10px;color:var(--ink-2);font-size:15.5px;max-width:640px;}

/* ---------- 表单 ---------- */
.consult-form{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-2);padding:30px;}
.consult-form label{font-size:14px;font-weight:600;color:var(--ink-2);margin-bottom:8px;display:block;}
.consult-form .form-control{
  height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  font-size:15px;color:var(--ink);box-shadow:none;transition:all var(--ease);
}
.consult-form textarea.form-control{height:auto;min-height:104px;padding-top:12px;}
.consult-form .form-control:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,95,224,.12);}
.consult-form .form-text{font-size:13px;color:var(--ink-3);}
.form-note{font-size:13px;color:var(--ink-3);margin-top:14px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#F0F4FB;border-top:1px solid var(--line);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.site-footer h4{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--ink);}
.site-footer p,.site-footer li{font-size:14px;color:var(--ink-2);line-height:1.9;}
.site-footer ul li{margin-bottom:8px;}
.site-footer a{color:var(--ink-2);}
.site-footer a:hover{color:var(--brand);}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-logo .logo-mark{width:34px;height:34px;flex:0 0 34px;border-radius:10px;font-size:16px;}
.footer-logo strong{font-size:16px;}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--line);padding:20px 0;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13.5px;color:var(--ink-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero h1{font-size:38px;}
}
@media (max-width:991px){
  :root{--sec:72px;}
  .brand-tags{display:none;}
  .hero{padding:52px 0 48px;}
  .hero h1{font-size:34px;max-width:100%;}
  .hero-visual{margin-top:44px;}
  .metric{padding:14px 10px;border-right:none;border-bottom:1px solid var(--line);}
  .metric:last-child{border-bottom:none;}
  .feature-wide{grid-template-columns:1fr;padding:26px;}
  .tier.featured{transform:none;}
  .tier.featured:hover{transform:translateY(-3px);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .cta-band{padding:34px 26px;}
}
@media (max-width:767px){
  :root{--sec:56px;}
  .brand-actions .link-arrow{display:none;}
  .logo-text em{display:none;}
  .logo-text strong{font-size:15.5px;}
  .hero h1{font-size:29px;}
  .sec-head h2{font-size:24px;}
  .scene-tabs{flex-direction:row;overflow-x:auto;padding-bottom:6px;}
  .scene-tab{border-left:1px solid var(--line);border-radius:var(--r-chip);white-space:nowrap;padding:10px 18px;font-size:14.5px;}
  .scene-tab.active{border-left-color:var(--line);background:var(--brand);color:#fff;border-color:var(--brand);}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band h2{font-size:22px;}
  .consult-form{padding:22px;}
  .offset-col{margin-top:0;}
}
@media (max-width:519px){
  .container{padding-left:16px;padding-right:16px;}
  .hero h1{font-size:26px;}
  .metric b{font-size:24px;}
  .news-item .thumb{flex:0 0 78px;width:78px;height:62px;}
  .hero-note{margin-left:0;margin-right:0;}
  .brand-inner{gap:12px;}
  .brand-actions .btn-brand{padding:8px 14px;font-size:13.5px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --primary:#1F5FE0;
  --primary-dark:#1748B0;
  --primary-light:#E8F0FF;
  --cyan:#14B8C6;
  --cyan-light:#EDF9FA;
  --orange:#FF7A2F;
  --page:#F5F7FC;
  --card:#FFFFFF;
  --alt:#EEF3FF;
  --text:#101828;
  --text-2:#475467;
  --text-3:#98A2B3;
  --border:#E4E9F2;
  --border-2:#CFD8E6;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-flat:0 1px 2px rgba(16,24,40,.04);
  --shadow-card:0 8px 24px rgba(16,24,40,.06);
  --shadow-hover:0 14px 36px rgba(31,95,224,.14);
  --container:1200px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--page);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;}
a:hover{color:var(--primary-dark);}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;letter-spacing:.01em;}
p{margin:0 0 1em;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

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

/* ---------- 顶部品牌行 ---------- */
.site-header{background:#fff;position:relative;z-index:50;}
.brand-bar{border-bottom:1px solid var(--border);background:#fff;}
.brand-inner{
  min-height:72px;
  display:flex;
  align-items:center;
  gap:24px;
  justify-content:space-between;
}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.logo-mark{
  width:42px;height:42px;flex:0 0 42px;
  border-radius:12px;
  background:linear-gradient(140deg,var(--primary) 0%,var(--cyan) 100%);
  color:#fff;font-size:20px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(31,95,224,.24);
}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text strong{font-size:17px;color:var(--text);font-weight:700;}
.logo-text em{font-style:normal;font-size:12px;color:var(--text-3);letter-spacing:.02em;}
.brand-tags{display:flex;gap:8px;flex-wrap:wrap;flex:1;justify-content:center;}
.mini-tag{
  font-size:13px;color:var(--primary-dark);
  background:var(--primary-light);
  border-radius:var(--radius-pill);
  padding:5px 14px;line-height:1.5;white-space:nowrap;
}
.brand-actions{display:flex;align-items:center;gap:18px;flex-shrink:0;}
.btn-brand{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--primary);color:#fff;
  border-radius:var(--radius-btn);
  padding:10px 20px;font-size:15px;font-weight:600;
  box-shadow:0 6px 16px rgba(31,95,224,.22);
}
.btn-brand:hover{background:#2A6BEA;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-hover);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;color:var(--text-2);font-weight:600;}
.link-arrow i{font-size:12px;transition:transform .2s ease;}
.link-arrow:hover{color:var(--primary-dark);}
.link-arrow:hover i{transform:translateX(3px);}

/* ---------- 频道行 ---------- */
.channel-bar{
  background:#fff;border-bottom:1px solid var(--border);
  position:sticky;top:0;z-index:40;transition:box-shadow .2s ease;
}
.channel-bar.is-stuck{box-shadow:0 6px 18px rgba(16,24,40,.08);}
.channel-scroll{
  display:flex;gap:10px;align-items:center;
  padding-top:12px;padding-bottom:12px;
  overflow-x:auto;scrollbar-width:none;
}
.channel-scroll::-webkit-scrollbar{display:none;}
.channel{
  display:inline-block;white-space:nowrap;
  padding:8px 18px;border-radius:var(--radius-pill);
  font-size:14.5px;font-weight:600;color:var(--text-2);
  background:#F1F4FA;border:1px solid transparent;
}
.channel:hover{background:var(--primary-light);color:var(--primary-dark);}
.channel.active{background:var(--primary);color:#fff;box-shadow:0 6px 14px rgba(31,95,224,.24);}

/* ---------- 分类页小号 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,#E8F0FF 0%,#EDF9FA 100%);
  border-bottom:1px solid var(--border);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(#1F5FE0 1px,transparent 1px);
  background-size:18px 18px;opacity:.06;pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.hero-row{display:flex;align-items:center;gap:40px;padding:44px 0 48px;}
.hero-copy{flex:1 1 auto;max-width:620px;}
.breadcrumb-line{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text-2);margin-bottom:16px;}
.breadcrumb-line a{color:var(--text-2);}
.breadcrumb-line a:hover{color:var(--primary-dark);}
.breadcrumb-line i{font-size:10px;color:var(--text-3);}
.tag-pill{
  display:inline-block;background:var(--cyan-light);color:#0E8C97;
  border:1px solid rgba(20,184,198,.35);
  border-radius:var(--radius-pill);
  font-size:13px;font-weight:600;padding:4px 14px;margin-bottom:14px;
}
.page-hero h1{font-size:38px;line-height:1.25;margin-bottom:14px;}
.page-hero h1 span{color:var(--primary-dark);}
.hero-sub{font-size:16px;color:var(--text-2);max-width:560px;margin:0;}
.hero-figure{
  flex:0 0 360px;
  border-radius:20px;overflow:hidden;
  box-shadow:var(--shadow-card);border:1px solid #fff;background:#fff;
}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}

/* ---------- 主体 ---------- */
.page-main{padding:72px 0 24px;}
.main-grid{display:flex;gap:40px;align-items:flex-start;}
.anchor-col{flex:0 0 240px;position:sticky;top:84px;}
.anchor-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:22px 18px;box-shadow:var(--shadow-flat);
}
.anchor-card h3{font-size:15px;color:var(--text-2);font-weight:600;margin-bottom:14px;}
.anchor-list li{margin-bottom:6px;}
.anchor-list a{
  display:flex;align-items:center;gap:10px;
  font-size:14.5px;color:var(--text-2);font-weight:500;
  padding:9px 12px;border-radius:10px;border-left:3px solid transparent;
}
.anchor-list a .num{font-size:12px;color:var(--text-3);font-weight:700;}
.anchor-list a:hover{background:var(--primary-light);color:var(--primary-dark);}
.anchor-list a.active{background:var(--primary-light);color:var(--primary-dark);font-weight:700;border-left-color:var(--primary);}
.anchor-note{margin-top:16px;padding-top:16px;border-top:1px dashed var(--border-2);font-size:13px;color:var(--text-3);line-height:1.7;}

.content-col{flex:1 1 auto;min-width:0;}
.group-block{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:32px;margin-bottom:28px;box-shadow:var(--shadow-flat);scroll-margin-top:96px;
}
.group-block h2{font-size:24px;line-height:1.35;margin-bottom:12px;}
.group-block h2 .idx{color:var(--primary);font-size:15px;font-weight:700;margin-right:10px;letter-spacing:.06em;}
.group-desc{color:var(--text-2);font-size:15.5px;margin-bottom:24px;}
.point-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.point-card{
  background:#F8FAFF;border:1px solid var(--border);border-radius:14px;
  padding:20px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.point-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card);border-color:#CBD9F5;}
.point-icon{
  width:38px;height:38px;border-radius:11px;
  background:var(--primary-light);color:var(--primary-dark);
  display:flex;align-items:center;justify-content:center;font-size:16px;margin-bottom:12px;
}
.point-card h3{font-size:16.5px;margin-bottom:8px;}
.point-card p{margin:0;font-size:14.5px;color:var(--text-2);line-height:1.75;}
.group-figure{
  margin-top:22px;border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--border);
}
.group-figure img{width:100%;aspect-ratio:21/9;object-fit:cover;}
.group-figure figcaption{font-size:13px;color:var(--text-3);text-align:center;padding:10px 8px;background:#fff;}
.step-list{counter-reset:step;margin-top:6px;}
.step-list li{
  position:relative;padding:14px 0 14px 46px;border-bottom:1px dashed var(--border);
  font-size:15px;color:var(--text-2);
}
.step-list li:last-child{border-bottom:0;}
.step-list li::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;left:0;top:14px;
  width:30px;height:30px;border-radius:9px;
  background:var(--primary-light);color:var(--primary-dark);
  font-size:12.5px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.step-list strong{color:var(--text);}
.hint-strip{
  background:var(--cyan-light);border:1px solid rgba(20,184,198,.3);
  border-radius:14px;padding:16px 20px;font-size:14.5px;color:#0E6E77;
  display:flex;gap:12px;align-items:flex-start;margin-top:20px;
}
.hint-strip i{color:var(--cyan);margin-top:4px;}

/* ---------- FAQ ---------- */
.faq-section{padding:56px 0 8px;}
.section-head{margin-bottom:28px;}
.eyebrow{font-size:13px;letter-spacing:.08em;color:var(--primary);font-weight:700;text-transform:uppercase;margin-bottom:10px;}
.section-head h2{font-size:30px;line-height:1.3;margin-bottom:10px;}
.section-head p{color:var(--text-2);font-size:15.5px;margin:0;max-width:720px;}
.faq-accordion .accordion-item{
  border:1px solid var(--border);border-radius:14px;background:#fff;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-flat);
}
.faq-accordion .accordion-button{
  background:#fff;border:0;box-shadow:none;
  font-size:17px;font-weight:600;color:var(--text);
  padding:20px 22px;display:flex;align-items:center;gap:14px;
}
.faq-accordion .accordion-button:not(.collapsed){
  background:var(--primary-light);color:var(--primary-dark);
  box-shadow:inset 4px 0 0 var(--primary);
}
.faq-accordion .accordion-button::after{display:none;}
.faq-accordion .accordion-button .chev{
  margin-left:auto;width:24px;height:24px;flex:0 0 24px;border-radius:50%;
  background:#F1F4FA;color:var(--text-2);
  display:flex;align-items:center;justify-content:center;font-size:11px;
  transition:transform .25s ease,background-color .2s ease,color .2s ease;
}
.faq-accordion .accordion-button:not(.collapsed) .chev{
  transform:rotate(180deg);background:var(--primary);color:#fff;
}
.faq-accordion .accordion-body{
  padding:6px 22px 22px 22px;color:var(--text-2);font-size:15px;line-height:1.85;
}

/* ---------- 咨询表单 + CTA ---------- */
.cta-section{padding:64px 0 80px;}
.cta-band{
  background:linear-gradient(100deg,rgba(31,95,224,.06) 0%,rgba(20,184,198,.08) 100%);
  border:1px solid var(--border);border-radius:20px;
  padding:40px;display:flex;gap:36px;align-items:center;justify-content:space-between;
}
.cta-copy{max-width:560px;}
.cta-copy h2{font-size:26px;margin-bottom:10px;}
.cta-copy p{color:var(--text-2);font-size:15.5px;margin:0;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.btn-primary-solid{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--primary);color:#fff;border:0;
  border-radius:var(--radius-btn);padding:12px 24px;font-size:15px;font-weight:600;
  box-shadow:0 6px 16px rgba(31,95,224,.22);cursor:pointer;
}
.btn-primary-solid:hover{background:#2A6BEA;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-hover);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;color:var(--primary-dark);
  border:1px solid var(--primary);border-radius:var(--radius-btn);
  padding:12px 24px;font-size:15px;font-weight:600;
}
.btn-ghost:hover{background:rgba(31,95,224,.08);color:var(--primary-dark);}

.contact-card{
  margin-top:32px;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-card);padding:32px;box-shadow:var(--shadow-flat);
  scroll-margin-top:96px;
}
.contact-card h2{font-size:22px;margin-bottom:8px;}
.contact-card > p{color:var(--text-2);font-size:15px;}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:18px;}
.form-field{display:flex;flex-direction:column;gap:8px;}
.form-field.full{grid-column:1/-1;}
.form-field label{font-size:14px;font-weight:600;color:var(--text-2);}
.form-field input,.form-field textarea,.form-field select{
  border:1px solid var(--border-2);border-radius:var(--radius-btn);
  padding:11px 14px;font-size:15px;background:#fff;color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-field input,.form-field select{height:44px;padding:0 14px;}
.form-field textarea{min-height:110px;resize:vertical;line-height:1.7;}
.form-field input:focus,.form-field textarea:focus,.form-field select:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(31,95,224,.12);
}
.form-tip{font-size:13px;color:var(--text-3);margin-top:14px;}
.form-msg{margin-top:14px;font-size:14px;display:none;border-radius:10px;padding:12px 16px;}
.form-msg.ok{display:block;background:rgba(20,184,198,.12);color:#0E7C86;}
.form-msg.err{display:block;background:rgba(255,122,47,.12);color:#B85118;}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:50%;
  background:#fff;border:1px solid var(--border);color:var(--primary-dark);
  display:flex;align-items:center;justify-content:center;font-size:15px;
  box-shadow:var(--shadow-card);opacity:0;visibility:hidden;transition:all .25s ease;z-index:60;
}
.to-top.show{opacity:1;visibility:visible;}
.to-top:hover{background:var(--primary);color:#fff;border-color:var(--primary);transform:translateY(-2px);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#F2F5FB;border-top:1px solid var(--border);
  padding:56px 0 24px;margin-top:16px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-logo .logo-mark{width:34px;height:34px;flex:0 0 34px;font-size:16px;border-radius:10px;}
.footer-logo strong{font-size:16px;}
.site-footer p{font-size:14px;color:var(--text-2);line-height:1.8;}
.site-footer h4{font-size:15px;margin-bottom:14px;}
.site-footer ul li{margin-bottom:9px;}
.site-footer ul a{font-size:14px;color:var(--text-2);}
.site-footer ul a:hover{color:var(--primary-dark);}
.site-footer ul li{font-size:14px;color:var(--text-2);}
.footer-bottom{
  margin-top:36px;padding-top:18px;border-top:1px solid var(--border);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .hero-figure{flex:0 0 300px;}
  .page-hero h1{font-size:34px;}
}
@media (max-width:991.98px){
  .brand-tags{display:none;}
  .hero-row{flex-direction:column;align-items:flex-start;gap:26px;padding:36px 0 40px;}
  .hero-figure{flex:1 1 auto;width:100%;}
  .page-hero h1{font-size:30px;}
  .main-grid{flex-direction:column;gap:26px;}
  .anchor-col{position:static;flex:1 1 auto;width:100%;}
  .anchor-list{display:flex;gap:10px;overflow-x:auto;padding-bottom:4px;}
  .anchor-list li{margin:0;}
  .anchor-list a{white-space:nowrap;border-left:0;border-bottom:3px solid transparent;border-radius:10px;}
  .anchor-list a.active{border-left:0;border-bottom-color:var(--primary);}
  .anchor-note{display:none;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767.98px){
  .container{padding:0 16px;}
  .page-main{padding:48px 0 12px;}
  .group-block{padding:24px;}
  .point-grid{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .page-hero h1{font-size:27px;}
  .section-head h2{font-size:24px;}
  .cta-band{padding:26px;}
  .contact-card{padding:24px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:575.98px){
  .brand-actions .btn-brand{display:none;}
  .page-hero h1{font-size:24px;}
  .hero-sub{font-size:15px;}
  .to-top{right:16px;bottom:18px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --brand:#1F5FE0;
  --brand-dark:#1748B0;
  --brand-light:#E8F0FF;
  --cyan:#14B8C6;
  --orange:#FF7A2F;
  --bg:#F5F7FC;
  --card:#FFFFFF;
  --alt:#EEF3FF;
  --alt-cyan:#EDF9FA;
  --text:#101828;
  --text-2:#475467;
  --text-3:#98A2B3;
  --border:#E4E9F2;
  --border-2:#D5DCEA;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-hero:20px;
  --sh-1:0 1px 2px rgba(16,24,40,.04);
  --sh-2:0 8px 24px rgba(16,24,40,.06);
  --sh-3:0 14px 36px rgba(31,95,224,.14);
  --sect:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-dark)}
button,input,textarea,select{font-family:inherit}
h1,h2,h3,h4,h5{margin:0;font-weight:800;color:var(--text)}
p{margin:0}
ul,ol{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}
.container{max-width:1200px;padding-left:24px;padding-right:24px}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px}
}

/* ============ 顶部品牌行 ============ */
.site-header{position:relative;z-index:1040}
.brand-bar{background:#fff;border-bottom:1px solid var(--border)}
.brand-inner{display:flex;align-items:center;gap:20px;height:72px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo:hover{color:inherit}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,var(--brand),var(--cyan));
  color:#fff;display:grid;place-items:center;
  font-size:18px;font-weight:800;letter-spacing:0;
  box-shadow:0 6px 16px rgba(31,95,224,.24);
}
.logo-text strong{display:block;font-size:16px;font-weight:800;color:var(--text);line-height:1.3}
.logo-text em{display:block;font-style:normal;font-size:12px;color:var(--text-3);line-height:1.4}
.brand-tags{display:flex;gap:8px;flex-wrap:nowrap;overflow:hidden}
.mini-tag{
  font-size:12px;color:var(--text-2);background:var(--alt-cyan);
  border:1px solid #D6F0F2;padding:5px 11px;border-radius:999px;white-space:nowrap;
}
.brand-actions{margin-left:auto;display:flex;align-items:center;gap:18px;flex:0 0 auto}
.btn-brand{
  background:var(--brand);color:#fff;padding:10px 20px;border-radius:var(--r-btn);
  font-size:14px;font-weight:600;display:inline-block;transition:all .2s ease;
  box-shadow:0 4px 12px rgba(31,95,224,.22);
}
.btn-brand:hover{background:#1a55cf;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3)}
.link-arrow{color:var(--brand-dark);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.link-arrow i{transition:transform .2s ease;font-size:12px}
.link-arrow:hover{color:var(--brand)}
.link-arrow:hover i{transform:translateX(3px)}

/* ============ 频道行 ============ */
.channel-bar{
  position:sticky;top:0;z-index:1030;background:#fff;
  border-bottom:1px solid var(--border);transition:box-shadow .25s ease;
}
.channel-bar.is-stuck{box-shadow:0 8px 22px rgba(16,24,40,.08)}
.channel-scroll{
  display:flex;gap:8px;overflow-x:auto;align-items:center;
  padding:10px 0;scrollbar-width:none;-ms-overflow-style:none;
}
.channel-scroll::-webkit-scrollbar{display:none}
.channel{
  flex:0 0 auto;padding:8px 17px;border-radius:999px;background:var(--brand-light);
  color:var(--brand-dark);font-size:14px;font-weight:600;white-space:nowrap;
  transition:all .2s ease;border:1px solid transparent;
}
.channel:hover{background:#D8E6FF;color:var(--brand-dark)}
.channel.active{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(31,95,224,.24)}

/* ============ 文章头部 ============ */
.article-head{
  background-image:linear-gradient(180deg,rgba(240,245,255,.94),rgba(255,255,255,.97)),url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--border);
  padding:30px 0 34px;
}
.breadcrumb-line{font-size:13px;color:var(--text-3);display:flex;flex-wrap:wrap;align-items:center;gap:2px}
.breadcrumb-line a{color:var(--text-2);font-weight:500}
.breadcrumb-line a:hover{color:var(--brand)}
.breadcrumb-line .sep{margin:0 8px;color:#CBD5E1}
.breadcrumb-line .current{color:var(--text-3)}
.article-head h1{
  font-size:clamp(24px,3.1vw,38px);line-height:1.34;font-weight:800;
  margin:16px 0 18px;max-width:900px;letter-spacing:.01em;
}
.chip-cat{
  display:inline-flex;align-items:center;gap:7px;background:var(--brand-light);
  color:var(--brand-dark);font-size:13px;font-weight:700;padding:6px 14px;border-radius:999px;
}
.chip-cat i{color:var(--cyan);font-size:12px}
.article-meta{display:flex;flex-wrap:wrap;gap:8px 22px;font-size:13.5px;color:var(--text-3)}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--cyan);font-size:13px}

/* ============ 正文布局 ============ */
.article-wrap{padding:52px 0 76px}
.article-body{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  padding:34px 36px;box-shadow:var(--sh-1);
  font-size:16.5px;line-height:1.9;color:#1F2937;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;font-size:24px;line-height:1.4;color:var(--text);
  margin:34px 0 18px;padding-left:15px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;
  border-radius:4px;background:var(--brand);
}
.article-body h3{font-size:19px;line-height:1.5;margin:26px 0 12px;color:var(--text)}
.article-body h4{font-size:17px;margin:22px 0 10px}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-dark)}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.2em}
.article-body li{margin:.42em 0}
.article-body ul li::marker{color:var(--brand)}
.article-body ol li::marker{color:var(--brand);font-weight:700}
.article-body blockquote{
  margin:24px 0;padding:16px 22px;background:#F0F6FF;
  border-left:4px solid var(--brand);border-radius:0 var(--r-img) var(--r-img) 0;
  color:var(--text-2);font-size:15.5px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:20px auto;box-shadow:var(--sh-1)}
.article-body figure{margin:22px 0}
.article-body figcaption{text-align:center;font-size:13.5px;color:var(--text-3);margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-body th,.article-body td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--border)}
.article-body thead th{border-top:2px solid var(--brand);background:var(--alt);font-weight:700}
.article-body tbody tr:nth-child(even){background:#FAFBFE}
.article-body hr{border:none;border-top:1px dashed var(--border-2);margin:30px 0}
.article-body code{
  background:var(--alt);color:var(--brand-dark);padding:2px 6px;border-radius:6px;font-size:14px;
}

/* 侧栏 */
.sidebar-inner{position:relative}
@media (min-width:992px){
  .sidebar-inner{position:sticky;top:92px}
}
.side-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--sh-1);margin-bottom:20px;transition:box-shadow .2s ease;
}
.side-card:hover{box-shadow:var(--sh-2)}
.side-card h3{
  font-size:16px;font-weight:800;margin-bottom:16px;
  display:flex;align-items:center;gap:9px;line-height:1.4;
}
.side-card h3::before{content:"";width:4px;height:16px;border-radius:4px;background:var(--cyan)}
.side-link-list{list-style:none;padding:0;margin:0}
.side-link-list li{padding:12px 0;border-bottom:1px dashed var(--border)}
.side-link-list li:last-child{border-bottom:none;padding-bottom:0}
.side-link-list a{display:block;color:var(--text);font-size:14.5px;font-weight:600}
.side-link-list a:hover{color:var(--brand)}
.side-link-list small{display:block;font-size:12.5px;font-weight:400;color:var(--text-3);margin-top:4px;line-height:1.6}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-chip{
  display:inline-block;font-size:12.5px;font-weight:600;color:var(--brand-dark);
  background:var(--brand-light);border:1px solid #DCE8FF;padding:5px 12px;border-radius:999px;
  transition:all .2s ease;
}
.tag-chip:hover{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn-ghost{
  display:block;width:100%;text-align:center;padding:11px 16px;border-radius:var(--r-btn);
  border:1px solid var(--border-2);color:var(--brand-dark);font-size:14px;font-weight:600;
  background:transparent;transition:all .2s ease;
}
.btn-ghost:hover{background:rgba(31,95,224,.06);border-color:var(--brand);color:var(--brand)}

/* 空态 */
.empty-box{
  background:#fff;border:1px dashed var(--border-2);border-radius:var(--r-card);
  padding:56px 24px;text-align:center;box-shadow:var(--sh-1);
}
.empty-box i{font-size:34px;color:var(--brand);opacity:.7}
.empty-box h2{font-size:20px;margin:16px 0 8px}
.empty-box p{color:var(--text-2);font-size:14.5px;margin-bottom:20px}

/* 文末 */
.article-foot{margin-top:34px}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:18px 0 4px;border-top:1px dashed var(--border)}
.tag-row .label{font-size:13.5px;font-weight:700;color:var(--text-2);margin-right:2px}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:26px 0 0}
.post-nav-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:18px 22px;display:block;transition:all .2s ease;box-shadow:var(--sh-1);
}
.post-nav-item span{display:block;font-size:13px;color:var(--text-3);margin-bottom:6px}
.post-nav-item strong{display:block;font-size:15px;color:var(--text);font-weight:700;line-height:1.5}
.post-nav-item:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:#CFE0FF}
.post-nav-item:hover strong{color:var(--brand-dark)}
.post-nav-item.next{text-align:right}

.sect-head{margin-bottom:26px}
.sect-head .eyebrow{
  font-size:13px;letter-spacing:.08em;color:var(--brand);font-weight:700;
  text-transform:uppercase;display:block;margin-bottom:8px;
}
.sect-head h2{font-size:26px;line-height:1.35}
.sect-head p{color:var(--text-2);font-size:14.5px;margin-top:8px;max-width:640px}

.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rel-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:#CFE0FF}
.rel-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#E8F0FF,#EDF9FA)}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:9px;flex:1}
.rel-body strong{font-size:15.5px;font-weight:700;color:var(--text);line-height:1.5}
.rel-card:hover .rel-body strong{color:var(--brand-dark)}
.rel-body p{font-size:13.5px;color:var(--text-2);line-height:1.7}

/* FAQ */
.faq-sect{padding:0 0 76px}
.acc-item{
  position:relative;background:#fff;border:1px solid var(--border);border-radius:14px;
  margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.acc-item:hover{border-color:var(--border-2);box-shadow:var(--sh-1)}
.acc-item::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;border-radius:0 3px 3px 0;
  background:var(--brand);opacity:0;transition:opacity .25s ease;
}
.acc-item.open::before{opacity:1}
.acc-item.open{box-shadow:var(--sh-2);border-color:#CFE0FF}
.acc-btn{
  width:100%;background:none;border:none;text-align:left;cursor:pointer;
  padding:18px 54px 18px 24px;font-size:17px;font-weight:600;color:var(--text);
  position:relative;line-height:1.5;
}
.acc-btn:hover{color:var(--brand-dark)}
.acc-btn .chev{
  position:absolute;right:22px;top:50%;transform:translateY(-50%);
  color:var(--brand);font-size:13px;transition:transform .25s ease;
}
.acc-item.open .acc-btn .chev{transform:translateY(-50%) rotate(180deg)}
.acc-panel{max-height:0;overflow:hidden;transition:max-height .3s ease}
.acc-panel-inner{padding:0 24px 20px;color:var(--text-2);font-size:15px;line-height:1.9}

/* CTA */
.cta-band{
  background:linear-gradient(100deg,rgba(31,95,224,.07),rgba(20,184,198,.09));
  border:1px solid var(--border);border-radius:var(--r-hero);
  padding:34px 36px;display:flex;align-items:center;gap:28px;flex-wrap:wrap;
}
.cta-band h2{font-size:24px;line-height:1.4}
.cta-band p{color:var(--text-2);font-size:14.5px;margin-top:8px;max-width:640px}
.cta-band .cta-actions{margin-left:auto;display:flex;gap:12px;flex-wrap:wrap}
.btn-primary-x{
  background:var(--brand);color:#fff;padding:12px 24px;border-radius:var(--r-btn);
  font-size:14.5px;font-weight:600;display:inline-block;transition:all .2s ease;
  box-shadow:0 6px 18px rgba(31,95,224,.24);
}
.btn-primary-x:hover{background:#1a55cf;color:#fff;transform:translateY(-2px);box-shadow:var(--sh-3)}
.btn-outline-x{
  background:transparent;color:var(--brand-dark);border:1px solid var(--border-2);
  padding:12px 24px;border-radius:var(--r-btn);font-size:14.5px;font-weight:600;
  display:inline-block;transition:all .2s ease;
}
.btn-outline-x:hover{background:rgba(31,95,224,.06);border-color:var(--brand);color:var(--brand)}

/* 页脚 */
.site-footer{
  background:#F3F6FD;border-top:1px solid var(--border);padding:64px 0 26px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:34px}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-logo .logo-mark{width:34px;height:34px;border-radius:11px;font-size:16px}
.footer-logo strong{font-size:15.5px;font-weight:800;color:var(--text)}
.site-footer p{font-size:13.5px;color:var(--text-2);line-height:1.9;max-width:360px}
.site-footer h4{font-size:15px;font-weight:800;margin-bottom:16px;color:var(--text)}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer ul li{font-size:13.5px;color:var(--text-2);margin-bottom:11px;line-height:1.7}
.site-footer ul li a{color:var(--text-2)}
.site-footer ul li a:hover{color:var(--brand)}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--border);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.5px;color:var(--text-3);
}

/* 返回顶部 */
.to-top{
  position:fixed;right:22px;bottom:26px;width:44px;height:44px;border-radius:50%;
  background:#fff;border:1px solid var(--border);box-shadow:var(--sh-2);
  display:grid;place-items:center;color:var(--brand);cursor:pointer;z-index:900;
  opacity:0;pointer-events:none;transform:translateY(8px);transition:all .25s ease;
}
.to-top.show{opacity:1;pointer-events:auto;transform:translateY(0)}
.to-top:hover{background:var(--brand);color:#fff;border-color:var(--brand)}

/* 响应式 */
@media (max-width:1199.98px){
  .brand-tags{display:none}
}
@media (max-width:991.98px){
  .brand-inner{height:auto;flex-wrap:wrap;padding:12px 0;gap:12px}
  .brand-actions{margin-left:0;width:100%;justify-content:space-between}
  .article-wrap{padding:38px 0 56px}
  .article-body{padding:26px 22px;font-size:16px}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{padding:26px 22px}
  .cta-band .cta-actions{margin-left:0;width:100%}
}
@media (max-width:575.98px){
  .logo-text strong{font-size:14.5px}
  .logo-text em{font-size:11.5px}
  .btn-brand{padding:9px 15px;font-size:13px}
  .link-arrow{font-size:13px}
  .article-head{padding:22px 0 26px}
  .article-body{padding:22px 18px;font-size:15.5px;line-height:1.85}
  .article-body h2{font-size:20px}
  .article-body h3{font-size:17px}
  .rel-grid{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .post-nav-item.next{text-align:left}
  .footer-grid{grid-template-columns:1fr}
  .sect-head h2{font-size:22px}
  .cta-band h2{font-size:20px}
  .acc-btn{font-size:15.5px;padding:16px 48px 16px 20px}
  .acc-panel-inner{padding:0 20px 18px;font-size:14.5px}
}

/* roulang page: category2 */
:root{
  --brand:#1F5FE0;
  --brand-deep:#1748B0;
  --brand-soft:#E8F0FF;
  --cyan:#14B8C6;
  --cyan-soft:#EDF9FA;
  --orange:#FF7A2F;
  --bg:#F5F7FC;
  --card:#FFFFFF;
  --alt:#EEF3FF;
  --text:#101828;
  --text-2:#475467;
  --text-3:#98A2B3;
  --line:#E4E9F2;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,24,40,.04);
  --sh-2:0 8px 24px rgba(16,24,40,.06);
  --sh-3:0 14px 36px rgba(31,95,224,.14);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Inter,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand-deep);text-decoration:none;transition:color .2s ease,background-color .2s ease}
a:hover{color:var(--brand)}
img{max-width:100%;display:block}
button{font-family:inherit}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{max-width:1200px;padding-left:24px;padding-right:24px}

/* ============ 顶部品牌行 ============ */
.site-header{position:relative;z-index:50}
.brand-bar{background:#fff;border-bottom:1px solid var(--line)}
.brand-inner{display:flex;align-items:center;gap:22px;height:72px}
.logo{display:flex;align-items:center;gap:12px;flex:none}
.logo-mark{
  width:40px;height:40px;border-radius:12px;flex:none;
  background:linear-gradient(135deg,var(--brand),var(--cyan));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:700;
  box-shadow:0 6px 16px rgba(31,95,224,.24);
}
.logo-text{display:flex;flex-direction:column;line-height:1.25}
.logo-text strong{font-size:17px;font-weight:700;color:var(--text)}
.logo-text em{font-style:normal;font-size:12px;color:var(--text-3);letter-spacing:.02em}
.brand-tags{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-left:6px}
.mini-tag{
  font-size:12px;color:var(--brand-deep);background:var(--brand-soft);
  border-radius:var(--r-pill);padding:4px 12px;line-height:1.6;white-space:nowrap;
}
.brand-actions{margin-left:auto;display:flex;align-items:center;gap:18px}
.btn-brand{
  background:var(--orange);color:#fff;border-radius:var(--r-btn);
  padding:10px 20px;font-size:14px;font-weight:600;white-space:nowrap;
  box-shadow:0 6px 16px rgba(255,122,47,.26);
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.btn-brand:hover{background:#F96C1D;color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(255,122,47,.32)}
.link-arrow{font-size:14px;font-weight:500;color:var(--text-2);display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.link-arrow i{font-size:12px;transition:transform .2s ease}
.link-arrow:hover{color:var(--brand)}
.link-arrow:hover i{transform:translateX(3px)}

/* ============ 频道行 ============ */
.channel-bar{
  background:#fff;border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:60;
  transition:box-shadow .2s ease;
}
.channel-bar.is-stuck{box-shadow:0 8px 24px rgba(16,24,40,.07)}
.channel-scroll{
  display:flex;align-items:center;gap:10px;
  overflow-x:auto;padding-top:12px;padding-bottom:12px;
  scrollbar-width:none;
}
.channel-scroll::-webkit-scrollbar{display:none}
.channel{
  flex:none;font-size:14px;color:var(--text-2);
  background:#F2F5FB;border:1px solid transparent;border-radius:var(--r-pill);
  padding:8px 18px;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.channel:hover{color:var(--brand-deep);background:var(--brand-soft);border-color:#D6E3FF}
.channel.active{
  background:var(--brand);color:#fff;border-color:var(--brand);
  box-shadow:0 6px 16px rgba(31,95,224,.22);
}

/* ============ 通用按钮 ============ */
.btn-main{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand);color:#fff;border:none;
  border-radius:var(--r-btn);padding:13px 28px;
  font-size:15px;font-weight:600;
  box-shadow:0 10px 24px rgba(31,95,224,.22);
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.btn-main:hover{background:#2E6BEC;color:#fff;transform:translateY(-1px);box-shadow:0 14px 36px rgba(31,95,224,.28)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;color:var(--brand-deep);
  border:1px solid rgba(31,95,224,.35);border-radius:var(--r-btn);
  padding:13px 26px;font-size:15px;font-weight:600;
  transition:background-color .2s ease,border-color .2s ease,transform .2s ease;
}
.btn-ghost:hover{background:rgba(31,95,224,.06);color:var(--brand-deep);border-color:rgba(31,95,224,.5);transform:translateY(-1px)}

/* ============ 首屏 ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:52px 0 62px;
  background-color:#EEF3FF;
  background-image:linear-gradient(180deg,rgba(232,240,255,.94) 0%,rgba(245,247,252,.99) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(31,95,224,.85) 1px,transparent 1px);
  background-size:22px 22px;opacity:.05;
}
.page-hero::after{
  content:"";position:absolute;right:-90px;top:-70px;width:340px;height:340px;pointer-events:none;
  background:radial-gradient(circle,rgba(20,184,198,.16),transparent 70%);
}
.hero-inner{position:relative;z-index:2;max-width:760px;margin:0 auto;text-align:center}
.crumb{display:flex;align-items:center;justify-content:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px;flex-wrap:wrap}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--brand)}
.crumb span.sep{color:#C7D0E0}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;letter-spacing:.08em;color:var(--brand-deep);
  background:#fff;border:1px solid #D6E3FF;border-radius:var(--r-pill);
  padding:5px 14px;margin-bottom:20px;
}
.page-hero h1{font-size:44px;line-height:1.22;font-weight:700;margin-bottom:16px}
.page-hero h1 .hl{color:var(--brand-deep)}
.hero-sub{font-size:17px;color:var(--text-2);max-width:640px;margin:0 auto 28px}
.hero-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}
.hero-chips{display:flex;justify-content:center;flex-wrap:wrap;gap:10px;margin-top:32px}
.chip{
  font-size:13px;color:var(--brand-deep);background:#fff;
  border:1px solid #DCE6F8;border-radius:var(--r-pill);
  padding:7px 16px;transition:background-color .2s ease,border-color .2s ease,transform .2s ease;
}
.chip:hover{background:var(--brand-soft);border-color:#C6D8FF;color:var(--brand-deep);transform:translateY(-1px)}

/* ============ 板块 ============ */
.section{padding:96px 0}
.section.tight{padding:72px 0}
.section-alt{background:var(--alt)}
.section-head{max-width:740px;margin:0 auto 52px;text-align:center}
.section-head.left{margin-left:0;text-align:left;max-width:660px}
.section-head h2{font-size:30px;line-height:1.32;font-weight:700;margin-bottom:14px}
.section-head p{color:var(--text-2);margin:0;font-size:16px}

/* ============ 图文交替 ============ */
.feature-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:56px 0;border-top:1px solid var(--line);
}
.feature-row:first-of-type{border-top:none;padding-top:0}
.feature-row:last-of-type{padding-bottom:0}
.feature-row.reverse .feature-media{order:2}
.feature-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-2);
  background:linear-gradient(135deg,#E8F0FF,#EDF9FA);
}
.feature-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .45s ease}
.feature-media:hover img{transform:scale(1.03)}
.feature-index{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--cyan);margin-bottom:10px;
}
.feature-body h3{font-size:24px;line-height:1.45;font-weight:700;margin-bottom:14px}
.feature-body > p{color:var(--text-2);margin-bottom:20px}
.check-list{list-style:none;display:grid;gap:12px}
.check-list li{position:relative;padding-left:26px;font-size:15px;color:var(--text-2);line-height:1.75}
.check-list li::before{
  content:"";position:absolute;left:2px;top:11px;
  width:10px;height:5px;border-left:2px solid var(--cyan);border-bottom:2px solid var(--cyan);
  transform:rotate(-45deg);border-radius:1px;
}

/* ============ 对比清单条 ============ */
.compare-strip{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:34px 34px;
  display:grid;grid-template-columns:repeat(3,1fr);
}
.compare-col{padding:0 28px;border-left:1px dashed var(--line)}
.compare-col:first-child{border-left:none;padding-left:0}
.compare-col:last-child{padding-right:0}
.compare-col h3{font-size:17px;font-weight:700;margin-bottom:16px;display:flex;align-items:center;gap:9px}
.compare-col h3 .dot{width:10px;height:10px;border-radius:50%;background:var(--cyan);flex:none}
.compare-col ul{list-style:none;display:grid;gap:11px}
.compare-col li{position:relative;padding-left:16px;font-size:14px;color:var(--text-2);line-height:1.7}
.compare-col li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:#C7D6F5}

/* ============ 卡片网格 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.cap-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.cap-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:#D6E3FF}
.cap-card .thumb{aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#E8F0FF,#EDF9FA)}
.cap-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.cap-card:hover .thumb img{transform:scale(1.03)}
.cap-body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1}
.cap-tag{
  align-self:flex-start;font-size:12px;color:var(--cyan);
  background:var(--cyan-soft);border:1px solid #CBEEF1;
  border-radius:var(--r-pill);padding:3px 12px;line-height:1.7;
}
.cap-body h3{font-size:18px;font-weight:600;line-height:1.5;transition:color .2s ease}
.cap-card:hover .cap-body h3{color:var(--brand-deep)}
.cap-body p{font-size:14px;color:var(--text-2);line-height:1.75;margin:0}
.cap-more{
  margin-top:auto;padding-top:6px;
  font-size:14px;font-weight:600;color:var(--brand);
  display:inline-flex;align-items:center;gap:6px;
}
.cap-more i{font-size:12px;transition:transform .2s ease}
.cap-more:hover i{transform:translateX(3px)}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto}
.faq .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);
}
.faq .accordion-item:last-child{margin-bottom:0}
.faq .accordion-button{
  position:relative;background:#fff;color:var(--text);
  font-size:17px;font-weight:500;line-height:1.6;
  padding:18px 22px 18px 30px;box-shadow:none;border-radius:14px;
}
.faq .accordion-button::before{
  content:"";position:absolute;left:12px;top:16px;bottom:16px;width:4px;
  border-radius:2px;background:transparent;transition:background-color .2s ease;
}
.faq .accordion-button:not(.collapsed)::before{background:var(--brand)}
.faq .accordion-button:not(.collapsed){color:var(--brand-deep);background:#fff;box-shadow:none}
.faq .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq .accordion-button::after{
  flex:none;width:28px;height:28px;border-radius:50%;margin-left:auto;
  background-color:var(--brand-soft);
  background-image:linear-gradient(var(--brand-deep),var(--brand-deep)),
                   linear-gradient(var(--brand-deep),var(--brand-deep));
  background-size:12px 2px,2px 12px;
  background-position:center;
  background-repeat:no-repeat;
  transition:background-size .2s ease,transform .2s ease;
}
.faq .accordion-button:not(.collapsed)::after{
  background-image:linear-gradient(var(--brand-deep),var(--brand-deep)),
                   linear-gradient(var(--brand-deep),var(--brand-deep));
  background-size:12px 2px,0 0;
  transform:none;
}
.faq .accordion-body{padding:0 24px 22px 30px;color:var(--text-2);font-size:15px;line-height:1.9}

/* ============ CTA 卡 ============ */
.cta-card{
  background:linear-gradient(120deg,#F3F8FF 0%,#EDF9FA 100%);
  border:1px solid #DCE6F8;border-radius:20px;
  padding:46px 48px;
  display:grid;grid-template-columns:1.5fr 1fr;gap:34px;align-items:center;
  box-shadow:var(--sh-1);
}
.cta-card h2{font-size:28px;line-height:1.35;font-weight:700;margin-bottom:12px}
.cta-card p{color:var(--text-2);margin:0;font-size:15px}
.cta-actions{display:flex;flex-direction:column;align-items:flex-start;gap:14px}
.cta-note{font-size:13px;color:var(--text-3)}

/* ============ 页脚 ============ */
.site-footer{background:#F0F4FB;border-top:1px solid var(--line);padding:64px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:36px}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-logo .logo-mark{width:34px;height:34px;border-radius:10px;font-size:16px}
.footer-logo strong{font-size:16px}
.footer-grid > div > p{font-size:14px;color:var(--text-2);line-height:1.85;margin:0;max-width:340px}
.site-footer h4{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--text)}
.site-footer ul{list-style:none;display:grid;gap:10px}
.site-footer ul li{font-size:14px;color:var(--text-2);line-height:1.7}
.site-footer ul a{color:var(--text-2)}
.site-footer ul a:hover{color:var(--brand)}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .container{max-width:100%}
}
@media (max-width:991.98px){
  .brand-tags{display:none}
  .page-hero{padding:44px 0 52px}
  .page-hero h1{font-size:36px}
  .section{padding:72px 0}
  .section.tight{padding:58px 0}
  .feature-row{grid-template-columns:1fr;gap:28px;padding:44px 0}
  .feature-row.reverse .feature-media{order:0}
  .feature-media img{aspect-ratio:16/9}
  .compare-strip{grid-template-columns:1fr;padding:28px}
  .compare-col{padding:22px 0;border-left:none;border-top:1px dashed var(--line)}
  .compare-col:first-child{border-top:none;padding-top:0}
  .compare-col:last-child{padding-bottom:0}
  .card-grid{grid-template-columns:repeat(2,1fr);gap:22px}
  .cta-card{grid-template-columns:1fr;padding:36px 28px;gap:24px}
  .cta-card h2{font-size:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  .brand-inner{height:64px;gap:14px}
  .logo-text strong{font-size:15px}
  .logo-text em{display:none}
  .btn-brand{padding:9px 16px;font-size:13px}
  .brand-actions{gap:12px}
  .page-hero h1{font-size:30px}
  .hero-sub{font-size:15px}
  .section-head h2{font-size:24px}
  .section{padding:56px 0}
  .section.tight{padding:48px 0}
  .feature-body h3{font-size:20px}
  .btn-main,.btn-ghost{padding:12px 22px;font-size:14px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px}
  .link-arrow{display:none}
  .logo-mark{width:34px;height:34px;border-radius:10px;font-size:16px}
  .logo-text strong{font-size:14px}
  .card-grid{grid-template-columns:1fr}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn-main,.hero-actions .btn-ghost{justify-content:center}
  .page-hero h1{font-size:27px}
  .faq .accordion-button{font-size:15px;padding:16px 18px 16px 26px}
  .faq .accordion-body{padding:0 18px 18px 26px;font-size:14px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}