/* roulang page: index */
:root{
  --brand-700:#1B4F72;
  --brand-600:#2A6592;
  --brand-500:#3E7FAE;
  --brand-100:#E4EEF6;
  --accent-600:#0E7C6B;
  --accent-100:#E1F2EE;
  --warn-500:#C9762E;
  --bg:#F4F7FA;
  --surface:#FFFFFF;
  --ink-block:#14324A;
  --ink-900:#0F1B24;
  --ink-700:#2C3E4C;
  --ink-500:#5A6E7C;
  --line:#E2EAF1;
  --ring:#0E7C6B;
  --shadow-1:0 1px 2px rgba(15,27,36,.04),0 8px 24px rgba(27,79,114,.06);
  --shadow-2:0 12px 32px rgba(27,79,114,.12);
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --sidebar-w:240px;
  --ease:200ms ease;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-700);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px;}
h1,h2,h3,h4{color:var(--ink-900);letter-spacing:-.01em;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--ring);outline-offset:2px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;font-size:15px;font-weight:600;
  border-radius:var(--r-btn);border:1px solid transparent;
  transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease);
  white-space:nowrap;text-decoration:none;
}
.btn:focus,.btn:focus-visible{box-shadow:none;outline:2px solid var(--ring);outline-offset:2px;}
.btn-lg{height:48px;padding:0 28px;font-size:16px;}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-primary{background:var(--brand-700);border-color:var(--brand-700);color:#fff;}
.btn-primary:hover{background:var(--brand-600);border-color:var(--brand-600);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-1);text-decoration:none;}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-outline-brand{background:#fff;border-color:var(--brand-700);color:var(--brand-700);}
.btn-outline-brand:hover{background:var(--brand-100);color:var(--brand-700);text-decoration:none;}
.btn-outline-brand:active{transform:translateY(1px);}
.btn-light-solid{background:#fff;color:var(--ink-block);border-color:#fff;}
.btn-light-solid:hover{background:var(--brand-100);color:var(--brand-700);text-decoration:none;}

/* ---------- 标签 / 徽章 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;font-size:12px;font-weight:600;line-height:1.5;
  border-radius:999px;background:var(--brand-100);color:var(--brand-700);
}
.tag-accent{background:var(--accent-100);color:var(--accent-600);}
.tag-warn{background:#FBEEE2;color:var(--warn-500);}
.rec-badge{
  display:inline-block;padding:2px 8px;margin-right:6px;
  font-size:11px;font-weight:700;border-radius:999px;
  background:var(--accent-600);color:#fff;
}

/* ---------- 布局骨架 ---------- */
.app-shell{display:flex;align-items:flex-start;min-height:100vh;}
.sidebar{
  width:var(--sidebar-w);flex:0 0 var(--sidebar-w);
  position:sticky;top:0;height:100vh;
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:26px 18px 20px;z-index:30;
}
.app-main{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:80px 0;}
.section-tight{padding:64px 0;}

/* ---------- 品牌 ---------- */
.brand{display:flex;align-items:center;gap:12px;padding:0 4px;}
.brand-mark{
  position:relative;flex:0 0 auto;width:38px;height:38px;border-radius:50%;
  background:conic-gradient(from 200deg,var(--brand-700) 0 62%,#BBD3E4 62% 100%);
  display:grid;place-items:center;
}
.brand-mark::after{
  content:"365";width:26px;height:26px;border-radius:50%;background:#fff;
  display:grid;place-items:center;font-size:10px;font-weight:700;
  color:var(--brand-700);letter-spacing:-.04em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0;}
.brand-text strong{font-size:15px;font-weight:700;color:var(--ink-900);letter-spacing:-.01em;}
.brand-text small{font-size:11px;color:var(--ink-500);letter-spacing:.02em;}

/* ---------- 侧栏导航 ---------- */
.side-menu{display:flex;flex-direction:column;gap:4px;margin-top:30px;flex:1 1 auto;}
.side-label{font-size:11px;font-weight:700;letter-spacing:.12em;color:var(--ink-500);padding:0 12px 8px;text-transform:uppercase;}
.side-link{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:10px;
  font-size:15px;color:var(--ink-700);font-weight:500;
  transition:background var(--ease),color var(--ease);
}
.side-link:hover{background:var(--brand-100);color:var(--brand-700);text-decoration:none;}
.side-link.active{background:var(--brand-100);color:var(--brand-700);font-weight:600;}
.side-link.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:2px;background:var(--brand-700);
}
.side-link i{width:16px;text-align:center;font-size:13px;color:var(--brand-500);}
.side-link.active i{color:var(--brand-700);}
.side-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);}
.side-foot .btn{width:100%;}
.side-note{margin:12px 0 0;font-size:12px;line-height:1.7;color:var(--ink-500);}

/* ---------- 移动顶栏 ---------- */
.mobile-bar{
  position:sticky;top:0;z-index:40;height:56px;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 18px;background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line);
}
.brand-mini{display:flex;align-items:center;gap:10px;text-decoration:none;}
.brand-mini:hover{text-decoration:none;}
.brand-mini strong{font-size:15px;font-weight:700;color:var(--ink-900);}
.brand-mini .brand-mark{width:30px;height:30px;}
.brand-mini .brand-mark::after{width:21px;height:21px;font-size:9px;}
.hamburger{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--brand-700);font-size:17px;
  display:grid;place-items:center;transition:background var(--ease);
}
.hamburger:hover{background:var(--brand-100);}
.nav-drawer{width:290px;border:0;}
.nav-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:16px 18px;}
.nav-drawer .offcanvas-body{padding:18px;}
.drawer-link{
  display:flex;align-items:center;gap:10px;height:46px;padding:0 12px;
  border-radius:10px;font-size:15px;color:var(--ink-700);font-weight:500;
}
.drawer-link:hover{background:var(--brand-100);color:var(--brand-700);text-decoration:none;}
.drawer-link.active{background:var(--brand-100);color:var(--brand-700);font-weight:600;}

/* ---------- 首屏 ---------- */
.hero{position:relative;padding:70px 0 0;overflow:hidden;}
.hero::before{
  content:"";position:absolute;inset:0 0 auto 0;height:520px;
  background:
    radial-gradient(760px 320px at 82% 0%,rgba(62,127,174,.16),transparent 70%),
    linear-gradient(180deg,#EDF4F9 0%,rgba(244,247,250,0) 100%);
  pointer-events:none;
}
.hero .container-x{position:relative;z-index:1;}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:52px;align-items:center;}
.hero h1{
  font-size:clamp(28px,3.4vw,40px);line-height:1.28;font-weight:700;
  margin:18px 0 16px;letter-spacing:-.01em;
}
.hero-lead{font-size:17px;line-height:1.85;color:var(--ink-700);max-width:560px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-img);box-shadow:var(--shadow-2);
}
.hero-badge{
  position:absolute;left:-14px;bottom:22px;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:12px 18px;box-shadow:var(--shadow-1);line-height:1.4;
}
.hero-badge strong{display:block;font-size:20px;font-weight:700;color:var(--brand-700);}
.hero-badge span{font-size:12px;color:var(--ink-500);}
.trust-bar{
  margin:46px 0 0;background:var(--brand-100);border-radius:14px;
  padding:16px 10px;display:grid;grid-template-columns:repeat(4,1fr);gap:8px;
}
.trust-item{
  display:flex;align-items:center;justify-content:center;gap:9px;
  font-size:14px;font-weight:600;color:var(--brand-700);
}
.trust-item i{font-size:14px;color:var(--accent-600);}

/* ---------- 板块标题 ---------- */
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:34px;
}
.sec-title{
  position:relative;margin:0;padding-left:14px;
  font-size:clamp(22px,2.2vw,27px);font-weight:700;line-height:1.4;
}
.sec-title::before{
  content:"";position:absolute;left:0;top:.42em;width:3px;height:18px;
  border-radius:2px;background:var(--brand-700);
}
.sec-sub{margin:10px 0 0;font-size:15px;line-height:1.75;color:var(--ink-500);max-width:760px;}
.link-more{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;
  color:var(--brand-700);white-space:nowrap;
}
.link-more i{transition:transform var(--ease);}
.link-more:hover i{transform:translateX(3px);}

/* ---------- 权益对比表 ---------- */
.compare-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);overflow:hidden;
}
table.compare{width:100%;border-collapse:collapse;margin:0;}
table.compare th,table.compare td{
  height:56px;padding:0 22px;font-size:15px;text-align:center;
  border-bottom:1px solid var(--line);vertical-align:middle;
}
table.compare tbody tr:last-child th,table.compare tbody tr:last-child td{border-bottom:0;}
table.compare thead th{
  height:66px;font-weight:700;color:var(--ink-900);background:#fff;
  border-bottom:1px solid var(--line);
}
table.compare thead th.col-name,
table.compare tbody th{text-align:left;font-weight:600;color:var(--ink-900);}
table.compare tbody tr{transition:background var(--ease);}
table.compare tbody tr:hover{background:var(--brand-100);}
table.compare .col-feature{background:var(--accent-100);border-left:1px solid var(--accent-600);border-right:1px solid var(--accent-600);}
table.compare thead .col-feature{border-top:1px solid var(--accent-600);}
table.compare tbody tr:hover .col-feature{background:#D8EDE7;}
.yes{color:var(--accent-600);font-size:14px;}
.no{color:#B9C7D2;font-size:16px;line-height:1;}
.compare-note{margin:16px 0 0;font-size:13px;color:var(--ink-500);}
.compare-cta{margin-top:26px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;}

/* 移动端等级卡 */
.plan-card{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow-1);padding:22px;margin-bottom:14px;
}
.plan-card h3{margin:0 0 4px;font-size:17px;font-weight:700;display:flex;align-items:center;gap:8px;}
.plan-price{font-size:13px;color:var(--ink-500);margin-bottom:14px;}
.plan-card ul{margin-bottom:18px;}
.plan-card li{display:flex;gap:9px;align-items:flex-start;font-size:14.5px;line-height:1.75;padding:5px 0;}
.plan-card li i{color:var(--accent-600);font-size:12px;margin-top:7px;}
.plan-card.featured{border-color:var(--accent-600);box-shadow:var(--shadow-2);}

/* ---------- 等级亮点 ---------- */
.tier-grid{display:grid;grid-template-columns:5fr 7fr;gap:24px;align-items:stretch;}
.tier-lg{
  display:flex;flex-direction:column;
  background:linear-gradient(180deg,#FFFFFF 0%,#F7FBFD 100%);
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:34px;box-shadow:var(--shadow-1);
}
.tier-lg h3{margin:14px 0 10px;font-size:24px;font-weight:700;}
.tier-lg p{font-size:15px;line-height:1.85;color:var(--ink-700);}
.tick-list{margin:18px 0 26px;display:flex;flex-direction:column;gap:11px;}
.tick-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-700);}
.tick-list li i{color:var(--accent-600);font-size:12px;margin-top:8px;}
.tier-lg .btn{align-self:flex-start;margin-top:auto;}
.tier-no{
  font-family:"Inter",sans-serif;font-size:32px;font-weight:700;
  color:var(--brand-100);letter-spacing:-.04em;line-height:1;
}
.tier-list{display:flex;flex-direction:column;gap:20px;}
.tier-sm{
  display:grid;grid-template-columns:52px 1fr auto;gap:20px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.tier-sm:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-100);}
.tier-sm h3{margin:0 0 6px;font-size:18px;font-weight:700;display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.tier-sm p{margin:0 0 10px;font-size:14px;color:var(--ink-500);line-height:1.7;}
.tier-points{display:flex;flex-wrap:wrap;gap:8px;}
.tier-points span{
  font-size:12.5px;padding:3px 10px;border-radius:999px;
  background:var(--brand-100);color:var(--brand-700);font-weight:500;
}
.tier-sm .link-more{align-self:center;}

/* ---------- 内容卡片 ---------- */
.cc{
  display:flex;flex-direction:column;height:100%;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);overflow:hidden;color:inherit;
  transition:transform var(--ease),box-shadow var(--ease);
}
.cc:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);text-decoration:none;color:inherit;}
.cc-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-100);}
.cc-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 300ms ease;}
.cc:hover .cc-thumb img{transform:scale(1.03);}
.cc-body{padding:22px;display:flex;flex-direction:column;gap:11px;flex:1 1 auto;}
.cc-body h3{
  margin:0;font-size:17px;font-weight:600;line-height:1.55;color:var(--ink-900);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.cc-body p{
  margin:0;font-size:14.5px;line-height:1.75;color:var(--ink-500);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.cc-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--ink-500);
}
.cc-meta .read{color:var(--brand-700);font-weight:600;}
.cc:hover .cc-meta .read{color:var(--brand-600);}

/* ---------- 空状态 ---------- */
.empty-state{
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);
  padding:52px 24px;text-align:center;
}
.empty-mark{
  width:72px;height:72px;margin:0 auto 18px;border-radius:50%;
  background:
    radial-gradient(circle at 50% 50%,#fff 0 34%,transparent 35%),
    conic-gradient(from 140deg,var(--brand-100) 0 60%,var(--accent-100) 60% 100%);
  border:1px solid var(--line);
}
.empty-state p{margin:0 0 18px;font-size:15px;color:var(--ink-500);}

/* ---------- FAQ ---------- */
.faq .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;
  margin-bottom:12px;box-shadow:var(--shadow-1);
}
.faq .accordion-button{
  padding:20px 22px;font-size:16px;font-weight:600;color:var(--ink-900);
  background:#fff;box-shadow:none;line-height:1.6;
}
.faq .accordion-button:not(.collapsed){
  background:var(--brand-100);color:var(--brand-700);box-shadow:none;
}
.faq .accordion-button:focus{box-shadow:none;outline:2px solid var(--ring);outline-offset:-2px;}
.faq .accordion-button::after{
  width:9px;height:9px;background-image:none;
  border-right:2px solid var(--brand-700);border-bottom:2px solid var(--brand-700);
  transform:rotate(45deg);transition:transform var(--ease);
  margin-top:-4px;
}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);margin-top:4px;}
.faq .accordion-body{padding:16px 22px 24px;font-size:15px;line-height:1.85;color:var(--ink-700);}

/* ---------- CTA 通栏 ---------- */
.cta-band{background:var(--ink-block);color:#D6E4EE;padding:72px 0;}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.45;margin:0 0 14px;}
.cta-band p{color:#A9C2D4;font-size:15px;line-height:1.85;max-width:520px;}
.cta-points{display:flex;flex-wrap:wrap;gap:20px;margin-top:26px;}
.cta-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:#D6E4EE;}
.cta-points li i{color:#5FC2AE;font-size:13px;}
.cta-form{
  background:#fff;border-radius:var(--r-card);padding:28px;
  box-shadow:0 20px 48px rgba(8,24,38,.28);
}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink-900);margin-bottom:7px;}
.form-control{
  width:100%;height:46px;padding:0 14px;font-size:15px;color:var(--ink-900);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-btn);
  transition:border-color var(--ease),box-shadow var(--ease);
}
textarea.form-control{height:auto;padding:12px 14px;line-height:1.7;resize:vertical;}
.form-control::placeholder{color:#9AAAB7;}
.form-control:focus{
  border-color:var(--ring);box-shadow:0 0 0 3px rgba(14,124,107,.14);outline:none;
}
.form-status{margin:12px 0 0;font-size:13.5px;line-height:1.7;color:var(--accent-600);min-height:20px;}
.form-status.error{color:#B4423C;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-block);color:#D6E4EE;padding:64px 0 26px;margin-top:auto;}
.f-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;}
.f-brand .brand-mark{margin-bottom:14px;}
.f-brand strong{display:block;color:#fff;font-size:16px;font-weight:700;margin-bottom:10px;}
.f-brand p{font-size:14px;line-height:1.8;color:#A9C2D4;max-width:340px;}
.f-col h3{color:#fff;font-size:15px;font-weight:600;margin:0 0 16px;letter-spacing:.01em;}
.f-col ul li{margin-bottom:11px;}
.f-col a{color:#C4D8E6;font-size:14px;transition:color var(--ease);}
.f-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.f-plain li{font-size:14px;color:#A9C2D4;line-height:1.8;}
.f-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(214,228,238,.16);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
}
.f-bottom p{margin:0;font-size:12.5px;color:#8FA9BC;line-height:1.7;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  :root{--sidebar-w:208px;}
  .container-x{padding:0 24px;}
  .hero-grid{gap:40px;}
}
@media (max-width:991.98px){
  .sidebar{display:none;}
  .section{padding:56px 0;}
  .hero{padding:44px 0 0;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-visual{order:-1;}
  .hero-badge{left:12px;bottom:12px;}
  .trust-bar{grid-template-columns:repeat(2,1fr);gap:12px;margin-top:32px;}
  .cta-band{padding:56px 0;}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .f-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .tier-grid{grid-template-columns:1fr;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;}
}
@media (max-width:767.98px){
  .tier-sm{grid-template-columns:1fr;gap:14px;align-items:start;}
  .tier-sm .tier-no{font-size:26px;}
  .tier-sm .link-more{justify-self:start;}
}
@media (max-width:575.98px){
  .container-x{padding:0 18px;}
  .section{padding:44px 0;}
  .hero h1{font-size:27px;}
  .hero-lead{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .trust-bar{grid-template-columns:1fr;}
  .trust-item{justify-content:flex-start;padding:0 12px;}
  .f-grid{grid-template-columns:1fr;gap:28px;}
  .f-bottom{flex-direction:column;align-items:flex-start;}
  .cta-form{padding:22px;}
  .compare-cta .btn{width:100%;}
}

/* roulang page: article */
:root{
  --brand-700:#1B4F72;
  --brand-600:#2A6592;
  --brand-500:#3E7FAE;
  --brand-100:#E4EEF6;
  --accent-600:#0E7C6B;
  --accent-100:#E1F2EE;
  --warn-500:#C9762E;
  --bg:#F4F7FA;
  --surface:#FFFFFF;
  --ink-block:#14324A;
  --ink-900:#0F1B24;
  --ink-700:#2C3E4C;
  --ink-500:#5A6E7C;
  --line:#E2EAF1;
  --ring:#0E7C6B;
  --shadow-1:0 1px 2px rgba(15,27,36,.04), 0 8px 24px rgba(27,79,114,.06);
  --shadow-2:0 12px 32px rgba(27,79,114,.12);
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --side-w:240px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--ink-700);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand-700);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-600)}
img{max-width:100%;display:block;height:auto}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--ring);outline-offset:2px;border-radius:4px}
::selection{background:var(--brand-100);color:var(--brand-700)}

/* ---------- 布局骨架 ---------- */
.layout{display:block}
@media (min-width:992px){
  .layout{display:flex;align-items:flex-start}
}
.main-area{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;min-height:100vh}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 18px}
@media (min-width:768px){.container-x{padding:0 26px}}
@media (min-width:1200px){.container-x{padding:0 32px}}

/* ---------- 侧栏导航 ---------- */
.sidebar{
  display:none;
  width:208px;
  flex:0 0 208px;
  background:var(--surface);
  border-right:1px solid var(--line);
  padding:24px 16px 20px;
  flex-direction:column;
  position:sticky;
  top:0;
  height:100vh;
  overflow-y:auto;
}
@media (min-width:992px){.sidebar{display:flex}}
@media (min-width:1200px){.sidebar{width:var(--side-w);flex:0 0 var(--side-w);padding:28px 20px 22px}}
.brand{display:flex;align-items:center;gap:11px;padding:0 6px 20px;border-bottom:1px solid var(--line);margin-bottom:20px}
.brand:hover{color:var(--brand-700)}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:50%;
  border:2px solid var(--brand-700);
  position:relative;display:inline-block;
}
.brand-mark::after{
  content:"";position:absolute;inset:6px;border-radius:50%;
  border:2px dashed var(--accent-600);opacity:.75;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:16px;color:var(--ink-900);font-weight:700;letter-spacing:-.01em}
.brand-text small{font-size:11.5px;color:var(--ink-500);font-weight:400;margin-top:3px}
.side-label{display:block;font-size:11.5px;letter-spacing:.1em;color:var(--ink-500);padding:0 10px 8px}
.side-menu{display:flex;flex-direction:column;gap:4px}
.side-link{
  display:flex;align-items:center;gap:10px;height:44px;padding:0 12px;
  border-radius:var(--r-btn);color:var(--ink-700);font-size:15px;font-weight:500;
  position:relative;transition:background .2s ease,color .2s ease;
}
.side-link i{width:18px;text-align:center;font-size:15px;color:var(--brand-500);transition:color .2s ease}
.side-link:hover{background:var(--brand-100);color:var(--brand-700)}
.side-link:hover i{color:var(--brand-700)}
.side-link.active{background:var(--brand-100);color:var(--brand-700);font-weight:600}
.side-link.active::before{
  content:"";position:absolute;left:-16px;top:9px;bottom:9px;width:3px;
  border-radius:0 3px 3px 0;background:var(--brand-700);
}
.side-foot{margin-top:auto;padding-top:22px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:10px}
.side-note{font-size:12.5px;color:var(--ink-500);padding-left:2px}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  position:sticky;top:0;z-index:1030;background:var(--surface);
  border-bottom:1px solid var(--line);display:flex;align-items:center;
}
@media (min-width:992px){.topbar{display:none}}
.topbar-inner{width:100%;max-width:1200px;margin:0 auto;padding:0 16px;height:56px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.topbar .brand{padding:0;border:0;margin:0}
.topbar .brand-mark{width:30px;height:30px;flex:0 0 30px}
.topbar .brand-text strong{font-size:15px}
.hamburger{
  width:42px;height:42px;border:1px solid var(--line);background:var(--surface);
  border-radius:var(--r-btn);color:var(--brand-700);font-size:17px;
  display:inline-flex;align-items:center;justify-content:center;transition:all .2s ease;
}
.hamburger:hover{background:var(--brand-100);border-color:var(--brand-100)}
.offcanvas.drawer{width:300px;max-width:86vw;border-left:1px solid var(--line);background:var(--surface)}
.drawer-head{padding:18px 18px 14px;border-bottom:1px solid var(--line)}
.drawer-body{padding:16px 18px 24px;display:flex;flex-direction:column;gap:4px;height:calc(100% - 74px);overflow-y:auto}
.drawer .side-link.active::before{display:none}
.drawer .side-link{height:48px}
.drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:10px}

/* ---------- 按钮 ---------- */
.btn-main,.btn-ghost,.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  white-space:nowrap;cursor:pointer;transition:all .2s ease;border:1px solid transparent;
}
.btn-main{background:var(--brand-700);border-color:var(--brand-700);color:#fff}
.btn-main:hover{background:var(--brand-600);border-color:var(--brand-600);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-main:active{transform:translateY(1px);box-shadow:none}
.btn-line{background:var(--surface);border-color:var(--brand-700);color:var(--brand-700)}
.btn-line:hover{background:var(--brand-100);color:var(--brand-700)}
.btn-line:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:transparent;color:var(--brand-700);padding:0 14px}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700)}
.btn-block{width:100%}
.btn-sm-x{height:38px;padding:0 16px;font-size:14px}

/* ---------- 标签与徽章 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:5px;
  padding:4px 10px;border-radius:999px;font-size:12.5px;font-weight:500;line-height:1.5;
}
.tag-brand{background:var(--brand-100);color:var(--brand-700)}
.tag-accent{background:var(--accent-100);color:var(--accent-600)}
.tag-warn{background:#FBEDE0;color:var(--warn-500)}
.tag-plain{background:#EEF3F7;color:var(--ink-500)}

/* ---------- 顶部横幅 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#EAF2F8 0%,#F4F7FA 100%);
  border-bottom:1px solid var(--line);
  padding:20px 0 42px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(27,79,114,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(27,79,114,.06) 1px,transparent 1px);
  background-size:36px 36px;
}
.page-hero .container-x{position:relative;z-index:1}
.breadcrumb-x{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-500);padding:6px 0 18px;
}
.breadcrumb-x a{color:var(--ink-500)}
.breadcrumb-x a:hover{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
.breadcrumb-x .sep{color:#A9BAC6}
.breadcrumb-x .current{color:var(--ink-900);font-weight:500}
.page-hero h1{
  font-size:clamp(26px,3.2vw,38px);
  line-height:1.3;letter-spacing:-.01em;font-weight:700;
  max-width:900px;margin:14px 0 0;
}
.post-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  margin-top:18px;font-size:13.5px;color:var(--ink-500);
}
.post-meta span{display:inline-flex;align-items:center;gap:6px}
.post-meta i{font-size:13px;color:var(--brand-500)}

/* ---------- 文章主体栅格 ---------- */
.section{padding:44px 0}
@media (min-width:768px){.section{padding:56px 0}}
@media (min-width:1200px){.section{padding:64px 0}}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:28px;align-items:start}
@media (min-width:1200px){
  .article-grid{grid-template-columns:minmax(0,800px) 304px;gap:44px;justify-content:center}
}
.post-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow-1);
  padding:26px 20px;
}
@media (min-width:768px){.post-card{padding:36px 40px}}
@media (min-width:1200px){.post-card{padding:44px 48px}}
.post-card + .post-card{margin-top:22px}

/* ---------- 正文排版（CMS 注入内容） ---------- */
.post-body{font-size:16px;line-height:1.85;color:var(--ink-700);word-break:break-word}
.post-body > *:first-child{margin-top:0}
.post-body p{margin:0 0 1.2em}
.post-body h2{
  font-size:24px;font-weight:700;color:var(--ink-900);line-height:1.45;
  margin:2em 0 .85em;padding-left:16px;position:relative;scroll-margin-top:80px;
}
.post-body h2::before{
  content:"";position:absolute;left:0;top:.34em;width:4px;height:18px;
  border-radius:2px;background:var(--brand-700);
}
.post-body h3{
  font-size:18.5px;font-weight:600;color:var(--ink-900);line-height:1.55;
  margin:1.7em 0 .7em;scroll-margin-top:80px;
}
.post-body h4{font-size:16.5px;font-weight:600;color:var(--ink-900);margin:1.4em 0 .6em}
.post-body ul{margin:0 0 1.2em;padding:0}
.post-body ul > li{position:relative;padding-left:18px;margin-bottom:9px}
.post-body ul > li::before{
  content:"";position:absolute;left:1px;top:.72em;width:7px;height:7px;
  border-radius:2px;background:var(--brand-700);
}
.post-body ol{margin:0 0 1.2em;padding-left:1.35em}
.post-body ol > li{margin-bottom:9px}
.post-body ol > li::marker{color:var(--brand-700);font-weight:600}
.post-body a{color:var(--brand-700);border-bottom:1px solid rgba(27,79,114,.28)}
.post-body a:hover{color:var(--brand-600);border-bottom-color:var(--brand-600)}
.post-body strong{color:var(--ink-900)}
.post-body blockquote{
  margin:1.6em 0;padding:16px 20px;background:var(--brand-100);
  border-left:3px solid var(--brand-700);border-radius:0 12px 12px 0;color:var(--ink-700);
}
.post-body blockquote p:last-child{margin-bottom:0}
.post-body img{
  border-radius:var(--r-img);box-shadow:var(--shadow-1);
  margin:1.6em auto;width:auto;max-width:100%;
}
.post-body table{
  display:block;width:100%;overflow-x:auto;border-collapse:collapse;
  border:1px solid var(--line);border-radius:12px;margin:1.6em 0;font-size:15px;
}
.post-body th,.post-body td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}
.post-body th{background:var(--brand-100);color:var(--brand-700);font-weight:600}
.post-body tr:last-child td{border-bottom:0}
.post-body tr:hover td{background:#F6FAFD}
.post-body code{background:#EEF3F7;border-radius:6px;padding:2px 6px;font-size:14px;color:var(--brand-700)}
.post-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}

/* ---------- 空态 ---------- */
.post-empty{text-align:center;padding:56px 20px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-1)}
.post-empty .empty-mark{
  width:64px;height:64px;margin:0 auto 20px;border-radius:50%;
  border:2px solid var(--brand-100);display:flex;align-items:center;justify-content:center;
  color:var(--brand-500);font-size:24px;
}
.post-empty h2{font-size:21px;margin-bottom:10px}
.post-empty p{font-size:15px;color:var(--ink-500);max-width:420px;margin:0 auto 22px}

/* ---------- 文末操作 ---------- */
.post-foot{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  margin-top:22px;padding:18px 22px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-1);
}
.post-foot .foot-note{font-size:13.5px;color:var(--ink-500)}
.post-foot .foot-actions{display:flex;flex-wrap:wrap;gap:10px}

/* ---------- 侧栏卡片 ---------- */
.side-stack{display:flex;flex-direction:column;gap:20px}
@media (min-width:1200px){.side-stack{position:sticky;top:24px}}
.side-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow-1);padding:20px;
}
.side-card h2,.side-card h3{
  font-size:15px;font-weight:600;color:var(--ink-900);
  display:flex;align-items:center;gap:8px;margin-bottom:14px;
}
.side-card h2::before,.side-card h3::before{
  content:"";width:3px;height:15px;border-radius:2px;background:var(--brand-700);
}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:340px;overflow-y:auto}
.toc-list a{
  display:block;font-size:13.5px;color:var(--ink-500);line-height:1.6;
  padding:7px 10px;border-radius:8px;border-left:2px solid transparent;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;transition:all .2s ease;
}
.toc-list a.lv3{padding-left:22px;font-size:13px}
.toc-list a:hover{background:var(--brand-100);color:var(--brand-700);border-left-color:var(--brand-700)}
.cat-list{display:flex;flex-direction:column;gap:6px}
.cat-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:14.5px;color:var(--ink-700);padding:10px 12px;border-radius:var(--r-btn);
  transition:all .2s ease;
}
.cat-list a i{font-size:12px;color:var(--ink-500);transition:transform .2s ease}
.cat-list a:hover{background:var(--brand-100);color:var(--brand-700)}
.cat-list a:hover i{color:var(--brand-700);transform:translateX(3px)}
.side-tip{
  background:var(--brand-100);border:1px solid #D3E4F1;
  border-radius:var(--r-card);padding:20px;
}
.side-tip h3{font-size:15px;font-weight:600;color:var(--brand-700);margin-bottom:8px}
.side-tip p{font-size:13.5px;color:var(--ink-700);line-height:1.75;margin-bottom:14px}

/* ---------- 相关阅读 ---------- */
.rel-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:768px){.rel-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1200px){.rel-grid{grid-template-columns:repeat(3,1fr)}}
.rel-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#CFE0EC}
.rel-media{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--brand-100)}
.rel-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.rel-card:hover .rel-media img{transform:scale(1.03)}
.rel-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.rel-body h3{font-size:16.5px;font-weight:600;line-height:1.55}
.rel-body h3 a{color:var(--ink-900)}
.rel-body h3 a:hover{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
.rel-body p{font-size:14px;color:var(--ink-500);line-height:1.75}
.rel-foot{margin-top:auto;font-size:13px;color:var(--ink-500);display:flex;align-items:center;gap:8px}

/* ---------- 通栏 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--ink-block);color:#D6E4EE;
  border-radius:20px;padding:40px 26px;margin:8px 0 0;
}
@media (min-width:768px){.cta-band{padding:52px 48px}}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;
  border-radius:50%;border:36px solid rgba(227,240,246,.07);
}
.cta-band h2{color:#fff;font-size:clamp(21px,2.4vw,27px);line-height:1.4;position:relative;z-index:1}
.cta-band p{margin-top:12px;font-size:15px;color:#B7CEDE;max-width:620px;position:relative;z-index:1}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;position:relative;z-index:1}
.cta-band .btn-main{background:var(--accent-600);border-color:var(--accent-600)}
.cta-band .btn-main:hover{background:#0C6C5D;border-color:#0C6C5D}
.cta-band .btn-line{background:transparent;border-color:rgba(214,228,238,.5);color:#E7F1F7}
.cta-band .btn-line:hover{background:rgba(227,240,246,.12);border-color:#D6E4EE;color:#fff}
.cta-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;position:relative;z-index:1}
.cta-points span{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:#B7CEDE}
.cta-points i{color:var(--accent-100);font-size:13px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-block);color:#D6E4EE;margin-top:auto;padding:52px 0 26px}
.site-footer .f-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:576px){.site-footer .f-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:992px){.site-footer .f-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}}
.f-brand .brand-mark{border-color:#5FA3CE;margin-bottom:14px}
.f-brand .brand-mark::after{border-color:#7FD3C3}
.f-brand strong{display:block;color:#fff;font-size:17px;font-weight:700;letter-spacing:-.01em}
.f-brand p{margin-top:12px;font-size:13.5px;line-height:1.85;color:#A9C4D6;max-width:360px}
.f-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.f-col ul{display:flex;flex-direction:column;gap:10px}
.f-col a,.f-plain li{font-size:13.5px;color:#B7CEDE;line-height:1.7}
.f-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.f-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid rgba(227,240,246,.14);
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
}
.f-bottom p{font-size:12.5px;color:#8FAEC3;line-height:1.8}
@media (max-width:575.98px){
  .page-hero{padding:14px 0 32px}
  .post-card{padding:22px 18px}
  .post-foot{flex-direction:column;align-items:stretch}
  .post-foot .foot-actions{justify-content:stretch}
  .post-foot .foot-actions .btn-line{flex:1 1 auto}
}

/* roulang page: category1 */
:root{
  --brand-700:#1B4F72;
  --brand-600:#2A6592;
  --brand-500:#3E7FAE;
  --brand-100:#E4EEF6;
  --accent-600:#0E7C6B;
  --accent-100:#E1F2EE;
  --warn-500:#C9762E;
  --bg:#F4F7FA;
  --surface:#FFFFFF;
  --ink-block:#14324A;
  --ink-900:#0F1B24;
  --ink-700:#2C3E4C;
  --ink-500:#5A6E7C;
  --line:#E2EAF1;
  --ring:#0E7C6B;
  --shadow-1:0 1px 2px rgba(15,27,36,.04),0 8px 24px rgba(27,79,114,.06);
  --shadow-2:0 12px 32px rgba(27,79,114,.12);
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --rail-w:240px;
  --font-stack:"Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-stack);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-700);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{color:var(--ink-900);margin:0;line-height:1.35;font-weight:700;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--ring);outline-offset:2px;border-radius:4px;}

/* ============ 布局骨架 ============ */
.layout{display:flex;align-items:flex-start;min-height:100vh;}
.side-rail{
  position:sticky;top:0;
  flex:0 0 var(--rail-w);width:var(--rail-w);
  height:100vh;
  background:var(--surface);
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:24px 18px 20px;
  z-index:20;
}
.main-area{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* ============ 品牌标记 ============ */
.brand-mark{
  position:relative;display:inline-block;
  width:34px;height:34px;flex:0 0 34px;
  border-radius:50%;
  border:3px solid var(--brand-700);
}
.brand-mark::after{
  content:"";position:absolute;top:4px;left:50%;
  width:3px;height:9px;border-radius:2px;
  background:var(--accent-600);transform:translateX(-50%);
}

/* ============ 桌面侧栏 ============ */
.rail-brand{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding-bottom:18px;border-bottom:1px solid var(--line);}
.rail-brand strong{font-size:17px;color:var(--ink-900);letter-spacing:-.01em;}
.rail-brand p{flex:1 0 100%;font-size:12px;color:var(--ink-500);line-height:1.6;margin-top:2px;}

.side-menu{margin-top:20px;display:flex;flex-direction:column;gap:4px;}
.side-label{font-size:12px;letter-spacing:.08em;color:var(--ink-500);padding:0 12px 8px;}
.side-link{
  position:relative;
  display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:10px;
  font-size:15px;color:var(--ink-700);
  transition:background .2s ease,color .2s ease;
}
.side-link i{width:18px;text-align:center;font-size:14px;color:var(--ink-500);transition:color .2s ease;}
.side-link:hover{background:var(--brand-100);color:var(--brand-700);text-decoration:none;}
.side-link:hover i{color:var(--brand-700);}
.side-link.active{background:var(--brand-100);color:var(--brand-700);font-weight:600;}
.side-link.active i{color:var(--brand-700);}
.side-link.active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  border-radius:0 3px 3px 0;background:var(--brand-700);
}

.rail-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:12px;}
.rail-foot span{font-size:12px;color:var(--ink-500);line-height:1.6;}
.rail-foot .btn-main{width:100%;justify-content:center;}

/* ============ 移动端顶栏 ============ */
.mobile-bar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;z-index:1040;
  background:rgba(255,255,255,.96);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;
  padding:0 16px;
}
.mobile-bar .mb-brand{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:700;color:var(--ink-900);}
.mobile-bar .brand-mark{width:28px;height:28px;flex:0 0 28px;border-width:2.5px;}
.mobile-bar button{
  width:42px;height:42px;border:1px solid var(--line);background:#fff;
  border-radius:10px;color:var(--brand-700);
  display:inline-flex;align-items:center;justify-content:center;font-size:17px;
  transition:background .2s ease,border-color .2s ease;
}
.mobile-bar button:hover{background:var(--brand-100);border-color:var(--brand-100);}

.offcanvas.nav-drawer{width:296px;background:var(--surface);border-right:1px solid var(--line);}
.nav-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px;}
.nav-drawer .offcanvas-title{font-size:16px;font-weight:700;color:var(--ink-900);}
.nav-drawer .offcanvas-body{padding:18px 16px;display:flex;flex-direction:column;}
.nav-drawer .drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:12px;}
.nav-drawer .drawer-foot .btn-main{justify-content:center;width:100%;}
.nav-drawer .drawer-foot span{font-size:12px;color:var(--ink-500);}

/* ============ 按钮 ============ */
.btn-main,.btn-ghost-line,.btn-quiet{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:background .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.btn-main{background:var(--brand-700);color:#fff;box-shadow:var(--shadow-1);}
.btn-main:hover{background:var(--brand-600);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-main:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost-line{background:#fff;color:var(--brand-700);border-color:var(--brand-700);}
.btn-ghost-line:hover{background:var(--brand-100);color:var(--brand-700);text-decoration:none;}
.btn-ghost-line:active{transform:translateY(1px);}
.btn-quiet{height:38px;padding:0 14px;background:transparent;color:var(--brand-700);}
.btn-quiet:hover{background:var(--brand-100);text-decoration:none;}

/* ============ 顶部横幅 ============ */
.page-hero{
  position:relative;
  padding:36px 0 48px;
  border-bottom:1px solid var(--line);
  background-color:var(--brand-100);
  background-image:
    linear-gradient(rgba(228,238,246,.93),rgba(228,238,246,.93)),
    repeating-linear-gradient(0deg,rgba(27,79,114,.07) 0 1px,transparent 1px 30px),
    repeating-linear-gradient(90deg,rgba(27,79,114,.07) 0 1px,transparent 1px 30px),
    url("/assets/images/backpic/back-2.png");
  background-size:cover,auto,auto,cover;
  background-position:center;
}
.crumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--ink-500);margin-bottom:16px;}
.crumb a{color:var(--ink-500);}
.crumb a:hover{color:var(--brand-700);}
.crumb .sep{color:#9FB2BF;}
.crumb .current{color:var(--ink-900);font-weight:500;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 12px;border-radius:999px;
  background:var(--surface);color:var(--brand-700);
  border:1px solid rgba(27,79,114,.14);
  font-size:12.5px;font-weight:600;margin-bottom:16px;
}
.page-hero h1{
  font-size:clamp(28px,3.4vw,40px);
  letter-spacing:-.01em;
  line-height:1.28;
  max-width:860px;
}
.hero-lead{
  margin-top:16px;
  max-width:780px;
  font-size:16.5px;
  color:var(--ink-700);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;
}
.hero-facts li{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.82);
  border:1px solid rgba(27,79,114,.10);
  border-radius:999px;padding:7px 15px;
  font-size:13.5px;color:var(--ink-700);
}
.hero-facts i{color:var(--accent-600);font-size:13px;}

/* ============ 板块 ============ */
.section{padding:80px 0;}
.section-tight{padding:56px 0;}
.section-white{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap;}
.sec-title{font-size:26px;font-weight:700;position:relative;padding-left:16px;letter-spacing:-.01em;}
.sec-title::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:18px;border-radius:2px;background:var(--brand-700);
}
.sec-sub{margin-top:10px;font-size:15px;color:var(--ink-500);max-width:760px;}
.sec-link{font-size:14px;font-weight:600;color:var(--brand-700);white-space:nowrap;}
.sec-link:hover{text-decoration:underline;text-underline-offset:3px;}

/* ============ 图文横排列表 ============ */
.info-list{display:flex;flex-direction:column;}
.info-row{
  display:grid;grid-template-columns:320px 1fr;gap:28px;
  padding:28px 0;border-bottom:1px solid var(--line);
  align-items:start;
}
.info-row:first-child{padding-top:0;}
.info-row:last-child{border-bottom:none;padding-bottom:0;}
.info-thumb{
  border-radius:var(--r-img);overflow:hidden;
  background:var(--brand-100);box-shadow:var(--shadow-1);
}
.info-thumb img{aspect-ratio:16/9;width:100%;object-fit:cover;transition:transform .3s ease;}
.info-row:hover .info-thumb img{transform:scale(1.03);}
.info-body h3{font-size:19px;font-weight:600;margin-bottom:10px;}
.info-body h3 a{color:var(--ink-900);}
.info-body h3 a:hover{color:var(--brand-600);text-decoration:none;}
.info-desc{font-size:15.5px;color:var(--ink-700);max-width:740px;}
.info-meta{display:flex;align-items:center;gap:14px;margin-top:14px;flex-wrap:wrap;font-size:13px;color:var(--ink-500);}
.info-meta .dot{width:4px;height:4px;border-radius:50%;background:#C3D2DE;}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:999px;font-size:12.5px;font-weight:500;
  background:var(--brand-100);color:var(--brand-700);
}
.tag-accent{background:var(--accent-100);color:var(--accent-600);}

/* ============ 相关分类 ============ */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.rel-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-100);text-decoration:none;}
.rel-card .rc-icon{
  width:44px;height:44px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-100);color:var(--brand-700);font-size:17px;margin-bottom:16px;
}
.rel-card h3{font-size:17px;font-weight:600;margin-bottom:8px;color:var(--ink-900);}
.rel-card p{font-size:14.5px;color:var(--ink-500);flex:1 1 auto;}
.rel-card .more{margin-top:16px;font-size:14px;font-weight:600;color:var(--brand-700);display:inline-flex;align-items:center;gap:6px;}
.rel-card:hover .more{color:var(--brand-600);}

/* ============ FAQ ============ */
.faq .accordion-item{
  border:1px solid var(--line);
  border-radius:14px;
  background:var(--surface);
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:border-color .2s ease;
}
.faq .accordion-item:hover{border-color:#CFE0EC;}
.faq .accordion-button{
  background:var(--surface);
  color:var(--ink-900);
  font-size:16px;font-weight:600;
  padding:18px 22px;
  border-radius:0;
  box-shadow:none;
  line-height:1.6;
}
.faq .accordion-button:not(.collapsed){
  background:var(--brand-100);color:var(--brand-700);box-shadow:none;
}
.faq .accordion-button:focus{box-shadow:inset 0 0 0 2px var(--ring);border-color:transparent;}
.faq .accordion-button::after{
  width:14px;height:14px;background-size:14px;
  filter:invert(23%) sepia(29%) saturate(1100%) hue-rotate(170deg) brightness(92%) contrast(90%);
}
.faq .accordion-body{padding:4px 22px 20px;font-size:15px;color:var(--ink-700);line-height:1.85;}

/* ============ 底部 CTA ============ */
.cta-band{background:var(--ink-block);color:#D6E4EE;padding:64px 0;}
.cta-band h2{color:#fff;font-size:26px;letter-spacing:-.01em;max-width:760px;}
.cta-band .cta-text{margin-top:14px;font-size:15.5px;color:#B9CFE0;max-width:720px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.cta-band .btn-main{background:#fff;color:var(--brand-700);}
.cta-band .btn-main:hover{background:var(--brand-100);color:var(--brand-700);}
.cta-band .btn-ghost-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.5);}
.cta-band .btn-ghost-line:hover{background:rgba(255,255,255,.12);color:#fff;}
.cta-points{display:flex;flex-wrap:wrap;gap:22px;margin-top:30px;padding-top:24px;border-top:1px solid rgba(214,228,238,.18);}
.cta-points li{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:#B9CFE0;}
.cta-points i{color:#6FD3C1;font-size:13px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-block);color:#D6E4EE;padding:56px 0 22px;}
.f-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}
.f-brand .brand-mark{border-color:#7FB0CE;margin-bottom:14px;}
.f-brand .brand-mark::after{background:#6FD3C1;}
.f-brand strong{display:block;color:#fff;font-size:18px;margin-bottom:10px;}
.f-brand p{font-size:13.5px;color:#A9C5D8;line-height:1.8;max-width:340px;}
.f-col h3{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px;}
.f-col ul{display:flex;flex-direction:column;gap:9px;}
.f-col a{color:#D6E4EE;font-size:14px;}
.f-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.f-plain li{font-size:14px;color:#A9C5D8;}
.f-bottom{
  margin-top:36px;padding-top:18px;
  border-top:1px solid rgba(214,228,238,.18);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.f-bottom p{font-size:12.5px;color:#8FAFC4;}
.f-bottom p + p{text-align:right;}

/* ============ 响应式 ============ */
@media (max-width:1399.98px){
  .container-x{padding:0 28px;}
}
@media (max-width:1199.98px){
  :root{--rail-w:208px;}
  .container-x{padding:0 24px;}
  .info-row{grid-template-columns:270px 1fr;gap:22px;}
  .f-grid{grid-template-columns:1.3fr 1fr 1fr;gap:26px;}
  .f-brand{grid-column:1 / -1;}
}
@media (max-width:991.98px){
  .side-rail{display:none;}
  .mobile-bar{display:flex;}
  .layout{padding-top:60px;}
  .container-x{padding:0 20px;}
  .section{padding:56px 0;}
  .section-tight{padding:44px 0;}
  .page-hero{padding:28px 0 40px;}
  .info-row{grid-template-columns:1fr;gap:16px;padding:24px 0;}
  .info-thumb{max-width:100%;}
  .rel-grid{grid-template-columns:repeat(2,1fr);}
  .f-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .f-bottom{flex-direction:column;gap:8px;}
  .f-bottom p + p{text-align:left;}
}
@media (max-width:575.98px){
  .container-x{padding:0 16px;}
  .section{padding:44px 0;}
  .section-tight{padding:36px 0;}
  .sec-title{font-size:22px;}
  .info-body h3{font-size:17px;}
  .rel-grid{grid-template-columns:1fr;}
  .f-grid{grid-template-columns:1fr;}
  .cta-band{padding:44px 0;}
  .cta-band h2{font-size:22px;}
  .btn-main,.btn-ghost-line{width:100%;}
  .hero-actions,.cta-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn-quiet{width:100%;}
}

/* roulang page: category2 */
:root{
  --brand-700:#1B4F72; --brand-600:#2A6592; --brand-500:#3E7FAE; --brand-100:#E4EEF6;
  --accent-600:#0E7C6B; --accent-100:#E1F2EE;
  --warn-500:#C9762E;
  --bg:#F4F7FA; --surface:#FFFFFF; --ink-block:#14324A;
  --ink-900:#0F1B24; --ink-700:#2C3E4C; --ink-500:#5A6E7C;
  --line:#E2EAF1; --ring:#0E7C6B;
  --r-card:16px; --r-img:14px; --r-btn:10px;
  --shadow-1:0 1px 2px rgba(15,27,36,.04), 0 8px 24px rgba(27,79,114,.06);
  --shadow-2:0 12px 32px rgba(27,79,114,.12);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;padding:0;background:var(--bg);color:var(--ink-700);
  font-family:"Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;border-style:none;}
a{color:var(--brand-700);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-600);}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--ring);outline-offset:2px;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:-.01em;}
h2{font-size:clamp(22px,2.3vw,28px);line-height:1.42;position:relative;padding-left:14px;margin-bottom:14px;}
h2::before{content:"";position:absolute;left:0;top:.42em;width:3px;height:18px;background:var(--brand-700);border-radius:2px;}
h3{font-size:19px;line-height:1.5;font-weight:600;margin-bottom:10px;}

.container-x{max-width:1200px;margin:0 auto;padding:0 32px;width:100%;}

/* ---------- 侧栏 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:240px;z-index:1040;
  background:var(--surface);border-right:1px solid var(--line);
  padding:26px 18px 22px;display:flex;flex-direction:column;gap:22px;overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:11px;padding:0 6px;color:inherit;}
.brand-mark{
  width:34px;height:34px;border-radius:50%;border:2px solid var(--brand-700);
  position:relative;flex:0 0 auto;display:inline-block;
}
.brand-mark::before{content:"";position:absolute;inset:6px;border-radius:50%;border:1px dashed var(--accent-600);opacity:.75;}
.brand-mark::after{content:"";position:absolute;left:50%;top:-4px;width:2px;height:9px;background:var(--brand-700);transform:translateX(-50%);border-radius:2px;}
.brand-text strong{display:block;font-size:17px;font-weight:700;color:var(--ink-900);line-height:1.35;letter-spacing:-.01em;}
.brand-text small{display:block;font-size:12px;color:var(--ink-500);line-height:1.5;}
.side-label{display:block;font-size:12px;letter-spacing:.14em;color:var(--ink-500);padding:0 12px 8px;}
.side-menu{display:flex;flex-direction:column;gap:4px;}
.side-link{
  display:flex;align-items:center;gap:10px;height:44px;padding:0 12px;
  border-radius:10px;font-size:15px;color:var(--ink-700);
  border-left:3px solid transparent;transition:background .2s ease,color .2s ease;
}
.side-link i{width:18px;text-align:center;color:var(--brand-500);font-size:14px;}
.side-link:hover{background:var(--brand-100);color:var(--brand-700);}
.side-link.active{background:var(--brand-100);border-left-color:var(--brand-700);color:var(--brand-700);font-weight:600;}
.side-link.active i{color:var(--brand-700);}
.side-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:10px;}
.side-foot .tip{font-size:13px;color:var(--ink-500);line-height:1.6;padding:0 4px;}
.side-contact{font-size:13px;color:var(--ink-500);display:flex;align-items:center;gap:8px;padding:0 4px;}
.side-contact i{color:var(--brand-500);}

/* ---------- 移动端顶栏 ---------- */
.mobile-top{display:none;position:sticky;top:0;z-index:1050;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(8px);}
.mt-inner{display:flex;align-items:center;justify-content:space-between;height:56px;padding:0 16px;max-width:1200px;margin:0 auto;}
.mt-inner .brand-text small{display:none;}
.mt-toggle{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--brand-700);display:flex;align-items:center;justify-content:center;transition:.2s;}
.mt-toggle:hover{background:var(--brand-100);}
.drawer{width:284px;background:#fff;border-right:1px solid var(--line);}
.drawer .offcanvas-body{padding:22px 18px;display:flex;flex-direction:column;gap:20px;height:100%;}

/* ---------- 主体 ---------- */
.main-wrap{margin-left:240px;min-height:100vh;display:flex;flex-direction:column;}
main{flex:1;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;text-decoration:none;transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--brand-700);color:#fff;border-color:var(--brand-700);}
.btn-primary:hover{background:var(--brand-600);border-color:var(--brand-600);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{background:var(--brand-700);transform:translateY(1px);box-shadow:none;}
.btn-outline{background:#fff;color:var(--brand-700);border-color:var(--brand-700);}
.btn-outline:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-1px);}
.btn-outline:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--brand-700);border:0;height:38px;padding:0 12px;}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- Hero ---------- */
.page-hero{position:relative;background:var(--brand-100);border-bottom:1px solid var(--line);overflow:hidden;}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(27,79,114,.09) 1px,transparent 1px),linear-gradient(90deg,rgba(27,79,114,.09) 1px,transparent 1px);
  background-size:32px 32px;
}
.page-hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.85),rgba(255,255,255,0) 68%);pointer-events:none;
}
.page-hero .container-x{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);padding:16px 0 0;}
.crumb a{color:var(--ink-500);}
.crumb a:hover{color:var(--brand-700);}
.crumb span.sep{color:#A8BCCB;}
.crumb strong{color:var(--ink-900);font-weight:600;}
.hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center;padding:34px 0 52px;min-height:260px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;background:#fff;color:var(--brand-700);
  font-size:12.5px;font-weight:600;border-radius:999px;padding:5px 13px;border:1px solid rgba(27,79,114,.16);margin-bottom:16px;
}
.hero-copy h1{font-size:clamp(26px,3.1vw,38px);line-height:1.32;font-weight:700;color:var(--ink-900);margin-bottom:14px;}
.hero-sub{font-size:17px;color:var(--ink-700);max-width:560px;margin-bottom:24px;line-height:1.8;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.trust-row{display:flex;flex-wrap:wrap;gap:10px;}
.trust-row li{
  display:inline-flex;align-items:center;gap:7px;background:rgba(255,255,255,.86);
  border:1px solid rgba(27,79,114,.12);border-radius:999px;padding:6px 13px;
  font-size:13px;color:var(--brand-700);font-weight:500;
}
.trust-row i{font-size:12px;color:var(--accent-600);}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);
  box-shadow:var(--shadow-2);border:1px solid rgba(255,255,255,.7);
}

/* ---------- 板块 ---------- */
.section{padding:72px 0;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:780px;margin-bottom:34px;}
.section-head .lead{font-size:16px;color:var(--ink-500);margin:0;}

/* ---------- 双栏信息 ---------- */
.split{display:grid;grid-template-columns:7fr 5fr;gap:38px;align-items:start;}
.split-main p{font-size:16px;color:var(--ink-700);}
.split-main h3{margin-top:28px;}
.split-main h3:first-of-type{margin-top:18px;}
.dot-list{margin:14px 0 4px;display:flex;flex-direction:column;gap:10px;}
.dot-list li{position:relative;padding-left:20px;font-size:15.5px;color:var(--ink-700);line-height:1.75;}
.dot-list li::before{content:"";position:absolute;left:0;top:.68em;width:7px;height:7px;border-radius:2px;background:var(--brand-700);}
.dot-list li b{color:var(--ink-900);font-weight:600;}

.info-card{
  background:var(--brand-100);border:1px solid rgba(27,79,114,.14);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--shadow-1);position:sticky;top:84px;
}
.info-card h3{font-size:18px;margin-bottom:16px;}
.check-list{display:flex;flex-direction:column;gap:12px;margin-bottom:22px;}
.check-list li{position:relative;padding-left:28px;font-size:15px;color:var(--ink-700);line-height:1.7;}
.check-list li i{position:absolute;left:0;top:.42em;width:17px;height:17px;border-radius:50%;background:var(--accent-600);color:#fff;font-size:9px;display:flex;align-items:center;justify-content:center;}
.card-note{font-size:13px;color:var(--ink-500);margin-top:12px;line-height:1.7;}

/* ---------- 对照表 ---------- */
.compare-wrap{overflow:hidden;border-radius:var(--r-card);box-shadow:var(--shadow-1);border:1px solid var(--line);background:#fff;}
table.compare{width:100%;border-collapse:collapse;margin:0;}
.compare th,.compare td{padding:18px 20px;text-align:left;font-size:15px;color:var(--ink-700);border-top:1px solid var(--line);vertical-align:middle;}
.compare thead th{border-top:0;font-size:13.5px;color:var(--ink-500);font-weight:600;background:#FFF;letter-spacing:.02em;}
.compare tbody th{font-weight:600;color:var(--ink-900);background:#fff;}
.compare tbody tr{transition:background .18s ease;}
.compare tbody tr:hover{background:var(--brand-100);}
.compare .col-reco{background:var(--accent-100);border-left:1px solid var(--accent-600);border-right:1px solid var(--accent-600);}
.compare thead th.col-reco{color:var(--accent-600);position:relative;}
.compare .reco-badge{display:inline-block;background:var(--accent-600);color:#fff;font-size:11.5px;border-radius:999px;padding:2px 9px;margin-left:8px;font-weight:600;}
.icon-yes{color:var(--accent-600);font-size:13px;margin-right:6px;}
.icon-dash{color:#9FB2BF;font-size:13px;margin-right:6px;}

.compare-cards{display:none;grid-template-columns:1fr;gap:16px;}
.tier-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--shadow-1);}
.tier-card.is-reco{border-color:var(--accent-600);background:var(--accent-100);}
.tier-card h3{font-size:17px;margin-bottom:4px;}
.tier-card .tier-note{font-size:13px;color:var(--ink-500);margin-bottom:14px;}
.tier-card dl{margin:0;display:flex;flex-direction:column;gap:10px;}
.tier-card dt{font-size:13px;color:var(--ink-500);}
.tier-card dd{margin:0;font-size:15px;color:var(--ink-900);font-weight:500;}

/* ---------- 卡片 ---------- */
.card-grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.card-x{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease;display:flex;flex-direction:column;}
.card-x:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.card-x .thumb{overflow:hidden;}
.card-x img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease;}
.card-x:hover img{transform:scale(1.03);}
.card-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body .badge-tag{align-self:flex-start;background:var(--brand-100);color:var(--brand-700);font-size:12.5px;font-weight:600;border-radius:999px;padding:4px 12px;}
.card-body h3{font-size:18px;line-height:1.5;margin:0;}
.card-body p{font-size:15px;color:var(--ink-700);margin:0;}
.card-body .foot{margin-top:auto;font-size:13.5px;color:var(--ink-500);display:flex;align-items:center;justify-content:space-between;padding-top:8px;border-top:1px solid var(--line);}
.card-body .foot a{font-weight:600;}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;}
.faq-item:hover{box-shadow:var(--shadow-1);}
.faq-item.open{border-color:rgba(27,79,114,.4);box-shadow:var(--shadow-1);}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;cursor:pointer;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink-900);
  display:flex;align-items:center;justify-content:space-between;gap:16px;line-height:1.6;
}
.faq-q i{color:var(--brand-500);font-size:14px;transition:transform .25s ease;flex:0 0 auto;}
.faq-item.open .faq-q i{transform:rotate(180deg);color:var(--brand-700);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-item.open .faq-a{max-height:460px;}
.faq-a p{padding:0 22px 20px;font-size:15px;color:var(--ink-700);line-height:1.85;margin:0;}

/* ---------- CTA ---------- */
.cta-band{background:var(--ink-block);color:#D6E4EE;border-radius:20px;padding:44px;box-shadow:var(--shadow-2);}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start;}
.cta-band h2{color:#fff;margin-bottom:14px;}
.cta-band h2::before{background:#4E9CC9;}
.cta-band .cta-lead{font-size:16px;color:#BCD2E1;margin-bottom:22px;}
.guard-list{display:flex;flex-wrap:wrap;gap:18px;}
.guard-list li{display:flex;align-items:center;gap:8px;font-size:13.5px;color:#B9CFDE;}
.guard-list i{color:#66B7A9;font-size:13px;}
.form-card{background:#fff;border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--shadow-2);}
.form-field{margin-bottom:16px;}
.form-field label{display:block;font-size:14px;font-weight:600;color:var(--ink-900);margin-bottom:6px;}
.form-control-x{
  width:100%;height:46px;border:1px solid var(--line);border-radius:10px;padding:0 14px;
  font-size:15px;background:#fff;color:var(--ink-900);transition:border-color .2s ease,box-shadow .2s ease;
}
.form-control-x::placeholder{color:#9FB2BF;}
.form-control-x:focus{outline:none;border-color:var(--ring);box-shadow:0 0 0 3px rgba(14,124,107,.16);}
.form-control-x.is-error{border-color:#B4423C;}
textarea.form-control-x{height:auto;min-height:96px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field-err{display:none;font-size:13px;color:#B4423C;margin-top:5px;}
.field-err.show{display:block;}
.form-status{display:none;margin-top:14px;border-radius:10px;padding:11px 14px;font-size:14px;line-height:1.6;}
.form-status.show{display:block;}
.form-status.ok{background:var(--accent-100);color:#0B6558;border:1px solid rgba(14,124,107,.3);}
.form-status.bad{background:#FBEDEC;color:#8E3630;border:1px solid rgba(180,66,60,.3);}
.form-tip{font-size:13px;color:var(--ink-500);margin-top:12px;line-height:1.7;}

/* ---------- 分类互链 ---------- */
.link-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.link-tile{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;
  color:var(--ink-900);font-size:15px;font-weight:600;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.link-tile i{color:var(--brand-500);font-size:14px;}
.link-tile:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);color:var(--brand-700);border-color:rgba(27,79,114,.28);}
.link-tile.is-current{background:var(--brand-100);border-color:rgba(27,79,114,.28);color:var(--brand-700);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-block);color:#D6E4EE;margin-top:0;}
.f-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding:64px 0 40px;}
.f-brand .brand-mark{border-color:#6FAFD3;margin-bottom:14px;}
.f-brand .brand-mark::before{border-color:#8FD3C4;}
.f-brand .brand-mark::after{background:#6FAFD3;}
.f-brand strong{display:block;font-size:17px;color:#fff;font-weight:700;margin-bottom:10px;}
.f-brand p{font-size:13.5px;color:#A9C2D3;line-height:1.85;margin:0;max-width:340px;}
.f-col h3{font-size:15px;color:#fff;font-weight:600;margin-bottom:16px;padding:0;}
.f-col ul{display:flex;flex-direction:column;gap:10px;}
.f-col a{color:#D6E4EE;font-size:14px;}
.f-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.f-plain li{font-size:14px;color:#A9C2D3;line-height:1.7;}
.f-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;}
.f-bottom p{margin:0;font-size:12.5px;color:#93ACBF;line-height:1.7;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .sidebar{width:208px;}
  .main-wrap{margin-left:208px;}
  .container-x{padding:0 28px;}
}
@media (max-width:991.98px){
  .sidebar{display:none;}
  .main-wrap{margin-left:0;}
  .mobile-top{display:block;}
  .section{padding:56px 0;}
  .hero-inner{grid-template-columns:1fr;gap:28px;padding:26px 0 44px;}
  .hero-media{order:-1;}
  .split{grid-template-columns:1fr;gap:30px;}
  .info-card{position:static;}
  .link-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-grid{grid-template-columns:1fr;gap:26px;}
  .cta-band{padding:32px 26px;}
  .f-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  body{font-size:15.5px;}
  .container-x{padding:0 20px;}
  .card-grid-2{grid-template-columns:1fr;}
  .compare-wrap{display:none;}
  .compare-cards{display:grid;}
  .section{padding:48px 0;}
  .compare th,.compare td{padding:14px 16px;}
  .hero-copy h1{font-size:25px;}
  .hero-sub{font-size:15.5px;}
  .f-bottom{flex-direction:column;}
}
@media (max-width:575.98px){
  .section{padding:44px 0;}
  .trust-row{gap:8px;}
  .trust-row li{font-size:12.5px;padding:5px 11px;}
  .hero-actions .btn{width:100%;}
  .link-grid{grid-template-columns:1fr;}
  .f-grid{grid-template-columns:1fr;padding:44px 0 28px;}
  .cta-band{padding:26px 20px;}
  .form-card{padding:22px 18px;}
}

/* roulang page: category3 */
:root{
  --brand-700:#1B4F72;
  --brand-600:#2A6592;
  --brand-500:#3E7FAE;
  --brand-100:#E4EEF6;
  --accent-600:#0E7C6B;
  --accent-100:#E1F2EE;
  --warn-500:#C9762E;
  --bg:#F4F7FA;
  --surface:#FFFFFF;
  --ink-block:#14324A;
  --ink-900:#0F1B24;
  --ink-700:#2C3E4C;
  --ink-500:#5A6E7C;
  --line:#E2EAF1;
  --ring:#0E7C6B;
  --shadow-1:0 1px 2px rgba(15,27,36,.04),0 8px 24px rgba(27,79,114,.06);
  --shadow-2:0 12px 32px rgba(27,79,114,.12);
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --r-pill:999px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-700);
  font-family:"Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-700);text-decoration:none;transition:color .2s ease,background-color .2s ease}
a:hover{color:var(--brand-600)}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink-900);line-height:1.35;font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--ring);outline-offset:2px;border-radius:6px}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ============ 布局骨架 ============ */
.layout{display:flex;min-height:100vh}
.sidebar{
  width:240px;flex:0 0 240px;
  position:fixed;top:0;left:0;bottom:0;
  background:var(--surface);
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:26px 18px 22px;
  overflow-y:auto;z-index:30;
}
.content{margin-left:240px;width:calc(100% - 240px);display:flex;flex-direction:column;min-height:100vh}

/* ============ 品牌区 ============ */
.brand{display:flex;align-items:center;gap:11px;margin-bottom:26px}
.brand-mark{
  position:relative;width:34px;height:34px;flex:0 0 34px;border-radius:50%;
  border:2px solid var(--brand-700);background:
    radial-gradient(circle at 50% 50%, var(--accent-600) 0 2px, transparent 2px);
}
.brand-mark::before{
  content:"";position:absolute;inset:5px;border-radius:50%;
  border:1px dashed var(--brand-500);opacity:.75;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:16px;color:var(--ink-900);letter-spacing:.2px}
.brand-text em{font-style:normal;font-size:12px;color:var(--ink-500);letter-spacing:.3px}

/* ============ 侧栏导航 ============ */
.side-label{
  display:block;font-size:12px;letter-spacing:1.4px;color:var(--ink-500);
  text-transform:uppercase;margin:0 0 10px 14px;
}
.side-menu{display:flex;flex-direction:column;gap:6px;flex:1}
.side-link{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 14px;border-radius:10px;
  font-size:15px;color:var(--ink-700);transition:background-color .2s,color .2s,transform .2s;
}
.side-link i{width:18px;text-align:center;font-size:15px;color:var(--ink-500);transition:color .2s}
.side-link:hover{background:var(--brand-100);color:var(--brand-700)}
.side-link:hover i{color:var(--brand-700)}
.side-link:active{transform:translateY(1px)}
.side-link.active{background:var(--brand-100);color:var(--brand-700);font-weight:600}
.side-link.active i{color:var(--brand-700)}
.side-link.active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  border-radius:3px;background:var(--brand-700);
}
.side-foot{margin-top:22px;padding-top:18px;border-top:1px solid var(--line)}
.side-note{margin-top:10px;font-size:12.5px;color:var(--ink-500);display:flex;align-items:center;gap:6px}

/* ============ 按钮 ============ */
.btn-main,.btn-out,.btn-ghost,.btn-solid-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;cursor:pointer;
  border:1px solid transparent;transition:all .2s ease;
}
.btn-main{background:var(--brand-700);color:#fff}
.btn-main:hover{background:var(--brand-600);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-1)}
.btn-main:active{transform:translateY(1px);box-shadow:none}
.btn-out{background:var(--surface);color:var(--brand-700);border-color:var(--brand-700)}
.btn-out:hover{background:var(--brand-100);color:var(--brand-700)}
.btn-out:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--brand-700);height:38px;padding:0 12px}
.btn-ghost:hover{background:var(--brand-100)}
.btn-solid-light{background:#fff;color:var(--brand-700)}
.btn-solid-light:hover{background:var(--brand-100);color:var(--brand-700)}
.btn-block{width:100%}
.btn-sm{height:38px;padding:0 16px;font-size:14px}

/* ============ 面包屑 ============ */
.crumb-bar{background:var(--surface);border-bottom:1px solid var(--line)}
.crumb{display:flex;align-items:center;gap:8px;padding:14px 0;font-size:13px;color:var(--ink-500)}
.crumb a{color:var(--ink-500)}
.crumb a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
.crumb .sep{color:#B7C6D2}
.crumb .cur{color:var(--ink-900);font-weight:600}

/* ============ Hero ============ */
.hero{
  position:relative;
  background:
    linear-gradient(180deg,#EAF2F8 0%,#F4F7FA 100%),
    repeating-linear-gradient(90deg,rgba(27,79,114,.07) 0 1px,transparent 1px 44px),
    repeating-linear-gradient(0deg,rgba(27,79,114,.07) 0 1px,transparent 1px 44px);
  background-blend-mode:normal,multiply,multiply;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-140px;width:420px;height:420px;
  border-radius:50%;background:radial-gradient(circle,rgba(14,124,107,.10),transparent 68%);
}
.hero .container-x{position:relative;z-index:2}
.hero-grid{
  display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center;
  padding:64px 0 60px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-pill);
  padding:5px 14px;font-size:13px;color:var(--brand-700);font-weight:600;margin-bottom:18px;
  box-shadow:var(--shadow-1);
}
.eyebrow i{color:var(--accent-600)}
h1{font-size:clamp(28px,3.4vw,40px);letter-spacing:-.01em;line-height:1.28;margin-bottom:16px}
.hero-sub{font-size:18px;color:var(--brand-700);font-weight:600;margin-bottom:14px;line-height:1.6}
.hero-desc{font-size:15.5px;color:var(--ink-700);max-width:600px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.trust-row{display:flex;flex-wrap:wrap;gap:10px}
.trust-row li{
  display:inline-flex;align-items:center;gap:7px;
  background:var(--brand-100);color:var(--brand-700);
  border-radius:var(--r-pill);padding:6px 14px;font-size:13px;font-weight:600;
}
.trust-row li i{color:var(--accent-600);font-size:13px}
.hero-media{
  border-radius:var(--r-img);overflow:hidden;box-shadow:var(--shadow-2);
  border:1px solid var(--line);background:var(--surface);
}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .3s ease}
.hero-media:hover img{transform:scale(1.03)}

/* ============ 数据条 ============ */
.stats-bar{background:var(--surface);border-bottom:1px solid var(--line)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.stat{padding:22px 20px;text-align:center;border-right:1px solid var(--line)}
.stat:last-child{border-right:none}
.stat b{
  display:block;font-family:"Inter",sans-serif;font-size:28px;font-weight:700;
  color:var(--brand-700);letter-spacing:-.02em;line-height:1.2;
}
.stat span{display:block;font-size:13px;color:var(--ink-500);margin-top:2px}

/* ============ 通用板块 ============ */
.section{padding:80px 0}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:800px;margin-bottom:44px}
.sec-head h2{
  position:relative;font-size:clamp(24px,2.6vw,28px);padding-left:16px;margin-bottom:14px;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:8px;width:3px;height:18px;border-radius:2px;
  background:var(--brand-700);
}
.sec-head p{font-size:15.5px;color:var(--ink-500);max-width:780px}

/* ============ 步骤流程 ============ */
.steps{max-width:900px}
.step{position:relative;padding-left:98px;padding-bottom:34px}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";position:absolute;left:29px;top:62px;bottom:2px;width:2px;
  background:linear-gradient(180deg,var(--brand-100),var(--brand-100));
  border-radius:2px;
}
.step:last-child::before{display:none}
.step-num{
  position:absolute;left:0;top:0;width:58px;height:58px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-family:"Inter",sans-serif;font-size:20px;font-weight:700;letter-spacing:-.01em;
  color:var(--brand-700);background:var(--surface);
  border:1px solid var(--line);box-shadow:var(--shadow-1);
}
.step-body{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--shadow-1);transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.step:hover .step-body{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:var(--brand-100)}
.step:hover .step-num{border-color:var(--brand-500);color:var(--brand-600)}
.step-body h3{font-size:19px;margin-bottom:8px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.step-body h3 .tag-accent{
  font-size:12px;font-weight:600;color:var(--accent-600);background:var(--accent-100);
  border-radius:var(--r-pill);padding:3px 10px;font-family:"Inter","Noto Sans SC",sans-serif;
}
.step-body p{font-size:15.5px;color:var(--ink-700)}
.step-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.step-tags li{
  font-size:12.5px;color:var(--brand-700);background:var(--brand-100);
  border-radius:var(--r-pill);padding:4px 12px;
}

/* ============ 深色横幅 ============ */
.banner{
  position:relative;
  background-image:linear-gradient(rgba(20,50,74,.86),rgba(20,50,74,.9)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  color:#D6E4EE;
}
.banner-inner{padding:58px 0}
.banner h2{color:#fff;font-size:clamp(22px,2.4vw,26px);margin-bottom:12px}
.banner p{font-size:15px;max-width:720px;color:#C6D9E6}
.banner-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:30px}
.banner-card{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r-card);padding:20px 22px;transition:background-color .2s ease,transform .2s ease;
}
.banner-card:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
.banner-card b{display:flex;align-items:center;gap:8px;color:#fff;font-size:15.5px;margin-bottom:8px}
.banner-card b i{color:#7FD6C4}
.banner-card span{display:block;font-size:14px;color:#C6D9E6;line-height:1.75}

/* ============ 图文区块 ============ */
.split{display:grid;grid-template-columns:1fr 1.1fr;gap:46px;align-items:center}
.split-media{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1)}
.split-media img{width:100%;aspect-ratio:3/2;object-fit:cover;transition:transform .3s ease}
.split-media:hover img{transform:scale(1.03)}
.split-copy h2{font-size:clamp(22px,2.4vw,26px);margin-bottom:14px;position:relative;padding-left:16px}
.split-copy h2::before{
  content:"";position:absolute;left:0;top:7px;width:3px;height:18px;border-radius:2px;background:var(--brand-700);
}
.split-copy p{font-size:15.5px;margin-bottom:16px}
.check-list{margin-top:18px;display:flex;flex-direction:column;gap:12px}
.check-list li{display:flex;gap:11px;font-size:15px;color:var(--ink-700)}
.check-list li i{color:var(--accent-600);margin-top:6px;font-size:13px;flex:0 0 auto}

/* ============ 场景卡片 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.scene-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 22px;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-100)}
.scene-icon{
  width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--brand-100);color:var(--brand-700);font-size:17px;margin-bottom:16px;
}
.scene-card h3{font-size:17px;margin-bottom:8px}
.scene-card p{font-size:14.5px;color:var(--ink-500);line-height:1.8}
.scene-card .scene-tag{
  display:inline-block;margin-top:14px;font-size:12.5px;color:var(--accent-600);
  background:var(--accent-100);border-radius:var(--r-pill);padding:3px 11px;font-weight:600;
}

/* ============ 极简表格 ============ */
.plain-table{width:100%;border-collapse:collapse;background:var(--surface);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1)}
.plain-table th,.plain-table td{text-align:left;padding:16px 20px;font-size:14.8px;border-bottom:1px solid var(--line)}
.plain-table thead th{
  background:var(--brand-100);color:var(--brand-700);font-size:13.5px;font-weight:600;letter-spacing:.2px;
  border-bottom:1px solid var(--line);
}
.plain-table tbody tr{transition:background-color .2s ease}
.plain-table tbody tr:hover{background:var(--brand-100)}
.plain-table tbody tr:last-child td{border-bottom:none}
.plain-table td:first-child{font-weight:600;color:var(--ink-900);white-space:nowrap}
.table-wrap{margin-top:32px;border-radius:var(--r-card);box-shadow:var(--shadow-1)}
@media (max-width:767.98px){
  .table-wrap{overflow-x:auto}
  .plain-table{min-width:620px}
}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  padding:0 22px;box-shadow:var(--shadow-1);transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:var(--brand-100);box-shadow:var(--shadow-2)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;font-size:16px;font-weight:600;color:var(--ink-900);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .faq-arrow{color:var(--brand-700);transition:transform .25s ease;flex:0 0 auto}
.faq-item[open] summary .faq-arrow{transform:rotate(180deg)}
.faq-item .faq-answer{padding:0 0 20px;font-size:15px;color:var(--ink-700);line-height:1.85;max-width:780px}

/* ============ 相关分类互链 ============ */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rel-card{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);color:inherit}
.rel-card b{display:flex;align-items:center;gap:9px;font-size:16px;color:var(--ink-900);margin-bottom:8px}
.rel-card b i{color:var(--brand-700)}
.rel-card:hover b{color:var(--brand-700)}
.rel-card span{display:block;font-size:14.5px;color:var(--ink-500);line-height:1.8}
.rel-more{margin-top:14px;font-size:13.5px;color:var(--brand-700);font-weight:600;display:inline-flex;align-items:center;gap:6px}

/* ============ CTA ============ */
.cta-block{background:linear-gradient(180deg,#EAF2F8,#E4EEF6);border-top:1px solid var(--line)}
.cta-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;padding:72px 0;align-items:start}
.cta-copy h2{font-size:clamp(24px,2.6vw,28px);margin-bottom:14px}
.cta-copy p{font-size:15.5px;color:var(--ink-700);max-width:520px;margin-bottom:22px}
.cta-points{display:flex;flex-wrap:wrap;gap:10px}
.cta-points li{
  display:inline-flex;align-items:center;gap:7px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-pill);padding:6px 14px;
  font-size:13px;color:var(--brand-700);font-weight:600;box-shadow:var(--shadow-1);
}
.cta-points li i{color:var(--accent-600)}
.cta-form{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow-2);
}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink-900);margin-bottom:7px}
.field input,.field textarea{
  width:100%;height:46px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#FBFDFE;color:var(--ink-900);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#9BAAB6}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--ring);box-shadow:0 0 0 3px rgba(14,124,107,.14);background:#fff;
}
.field.has-error input,.field.has-error textarea{border-color:#B4423C}
.field .err{display:none;margin-top:6px;font-size:13px;color:#B4423C}
.field.has-error .err{display:block}
.form-status{display:none;margin-top:12px;border-radius:var(--r-btn);padding:11px 14px;font-size:14px}
.form-status.ok{display:block;background:var(--accent-100);color:var(--accent-600);border:1px solid rgba(14,124,107,.25)}
.form-status.bad{display:block;background:#FDECEA;color:#B4423C;border:1px solid rgba(180,66,60,.25)}
.form-hint{margin-top:12px;font-size:12.8px;color:var(--ink-500)}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-block);color:#D6E4EE;margin-top:0}
.f-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding:60px 0 40px}
.f-brand .brand-mark{border-color:#7FB4D8}
.f-brand .brand-mark::before{border-color:#7FD6C4}
.f-brand strong{display:block;color:#fff;font-size:17px;margin:14px 0 10px}
.f-brand p{font-size:14px;color:#A9C2D4;max-width:340px;line-height:1.85}
.f-col h3{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.f-col ul{display:flex;flex-direction:column;gap:11px}
.f-col ul a{color:#C6D9E6;font-size:14.5px}
.f-col ul a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.f-plain li{font-size:14.5px;color:#A9C2D4}
.f-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0 30px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px}
.f-bottom p{font-size:12.8px;color:#8FAAC0}
.f-bottom a{color:#8FAAC0}

/* ============ 移动端顶栏 ============ */
.mobile-bar{
  display:none;position:sticky;top:0;z-index:40;height:56px;
  align-items:center;justify-content:space-between;padding:0 18px;
  background:rgba(255,255,255,.96);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.m-brand{display:flex;align-items:center;gap:10px}
.m-brand .brand-mark{width:28px;height:28px;flex:0 0 28px}
.m-brand strong{font-size:15.5px;color:var(--ink-900)}
.m-toggle{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:var(--surface);color:var(--brand-700);font-size:17px;
  display:flex;align-items:center;justify-content:center;cursor:pointer;
}
.m-toggle:hover{background:var(--brand-100)}
.nav-drawer{width:288px!important;background:var(--surface)}
.nav-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:16px 18px}
.nav-drawer .offcanvas-body{padding:18px;display:flex;flex-direction:column;gap:18px}
.nav-drawer .brand{margin-bottom:0}
.nav-drawer .side-menu{gap:6px;margin-bottom:8px}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .sidebar{width:208px;flex-basis:208px;padding:22px 14px 18px}
  .content{margin-left:208px;width:calc(100% - 208px)}
  .hero-grid{gap:36px;padding:52px 0 48px}
  .container-x{padding:0 26px}
  .f-grid{grid-template-columns:1.3fr 1fr 1fr;gap:28px}
}
@media (max-width:991.98px){
  .sidebar{display:none}
  .content{margin-left:0;width:100%}
  .mobile-bar{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:32px;padding:44px 0 40px}
  .hero-media{max-width:620px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:none}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line)}
  .section{padding:56px 0}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:28px}
  .banner-grid{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .cta-inner{grid-template-columns:1fr;gap:30px;padding:56px 0}
  .f-grid{grid-template-columns:1fr 1fr;padding:48px 0 32px}
}
@media (max-width:575.98px){
  .container-x{padding:0 20px}
  .section{padding:44px 0}
  .scene-grid{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr}
  .stat{border-right:none;border-bottom:1px solid var(--line)}
  .stat:last-child{border-bottom:none}
  .step{padding-left:0;padding-top:70px;padding-bottom:26px}
  .step::before{left:27px;top:0;bottom:auto;height:62px}
  .step:last-child::before{display:block}
  .step-num{top:0}
  .hero-actions .btn-main,.hero-actions .btn-out{width:100%}
  .f-grid{grid-template-columns:1fr;gap:26px}
  .f-bottom{flex-direction:column}
  .cta-form{padding:20px}
}

/* roulang page: category4 */
:root{
  --brand-700:#1B4F72;
  --brand-600:#2A6592;
  --brand-500:#3E7FAE;
  --brand-100:#E4EEF6;
  --accent-600:#0E7C6B;
  --accent-100:#E1F2EE;
  --warn-500:#C9762E;
  --bg:#F4F7FA;
  --surface:#FFFFFF;
  --ink-block:#14324A;
  --ink-900:#0F1B24;
  --ink-700:#2C3E4C;
  --ink-500:#5A6E7C;
  --line:#E2EAF1;
  --ring:#0E7C6B;
  --shadow-1:0 1px 2px rgba(15,27,36,.04),0 8px 24px rgba(27,79,114,.06);
  --shadow-2:0 12px 32px rgba(27,79,114,.12);
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --r-pill:999px;
  --side-w:240px;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-700);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:var(--brand-700);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-600);}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--ring);outline-offset:2px;}

/* ============ 布局骨架 ============ */
.layout{display:flex;min-height:100vh;}
.sidebar{
  width:var(--side-w);
  flex:0 0 var(--side-w);
  background:var(--surface);
  border-right:1px solid var(--line);
  position:sticky;
  top:0;
  height:100vh;
  display:flex;
  flex-direction:column;
  padding:26px 16px 20px;
  overflow-y:auto;
}
.main-col{flex:1;min-width:0;display:flex;flex-direction:column;}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* ============ 侧栏品牌 ============ */
.brand-block{display:flex;align-items:center;gap:10px;padding:0 8px 6px;}
.brand-mark{
  width:32px;height:32px;flex:0 0 32px;border-radius:50%;
  background:conic-gradient(from 210deg,var(--brand-700) 0 76%,var(--brand-100) 76% 100%);
  position:relative;
}
.brand-mark::after{content:"";position:absolute;inset:9px;background:var(--surface);border-radius:50%;}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:16px;font-weight:700;color:var(--ink-900);letter-spacing:-.01em;}
.brand-text span{font-size:12px;color:var(--ink-500);}
.brand-note{padding:8px 8px 20px;font-size:12.5px;line-height:1.6;color:var(--ink-500);}

/* ============ 侧栏导航 ============ */
.side-label{
  display:block;padding:0 10px 10px;font-size:11px;letter-spacing:.14em;
  color:var(--ink-500);text-transform:uppercase;
}
.side-menu{display:flex;flex-direction:column;gap:4px;}
.side-link{
  display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:10px;
  font-size:15px;color:var(--ink-700);font-weight:500;
  border-left:3px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.side-link i{width:18px;text-align:center;font-size:14px;color:var(--brand-500);}
.side-link:hover{background:var(--brand-100);color:var(--brand-700);}
.side-link.active{
  background:var(--brand-100);border-left-color:var(--brand-700);
  color:var(--brand-700);font-weight:600;
}
.side-link.active i{color:var(--brand-700);}
.side-foot{margin-top:auto;padding:18px 8px 0;border-top:1px solid var(--line);}
.side-foot .btn{width:100%;justify-content:center;}
.side-contact{margin-top:12px;font-size:12.5px;line-height:1.7;color:var(--ink-500);}
.side-contact strong{color:var(--ink-700);font-weight:600;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-primary-x{background:var(--brand-700);color:#fff;box-shadow:0 6px 16px rgba(27,79,114,.18);}
.btn-primary-x:hover{background:var(--brand-600);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(27,79,114,.24);}
.btn-primary-x:active{transform:translateY(0);box-shadow:none;}
.btn-outline-x{background:transparent;color:var(--brand-700);border-color:var(--brand-700);}
.btn-outline-x:hover{background:var(--brand-100);color:var(--brand-700);}
.btn-ghost-x{background:transparent;color:var(--brand-700);}
.btn-ghost-x:hover{background:var(--brand-100);color:var(--brand-700);}
.btn-light-x{background:#fff;color:var(--brand-700);}
.btn-light-x:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-1px);}

/* ============ 移动端顶栏 ============ */
.mobile-bar{
  position:sticky;top:0;z-index:1035;
  height:56px;display:flex;align-items:center;justify-content:space-between;
  padding:0 16px;background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid var(--line);
}
.mobile-brand{display:flex;align-items:center;gap:9px;font-weight:700;color:var(--ink-900);font-size:15px;}
.mobile-brand .brand-mark{width:26px;height:26px;flex:0 0 26px;}
.mobile-brand .brand-mark::after{inset:7px;}
.hamburger{
  width:40px;height:40px;border:1px solid var(--line);border-radius:10px;
  background:#fff;color:var(--brand-700);font-size:16px;
}
.hamburger:hover{background:var(--brand-100);}

/* ============ 抽屉 ============ */
.offcanvas.drawer{width:290px;border-right:1px solid var(--line);}
.drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:16px 18px;}
.drawer .offcanvas-body{padding:18px;display:flex;flex-direction:column;}
.drawer .side-link{height:46px;}
.drawer-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);}

/* ============ 面包屑 ============ */
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);padding:16px 0;}
.crumb a{color:var(--ink-500);}
.crumb a:hover{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px;}
.crumb .sep{color:#9FB3C2;}
.crumb .cur{color:var(--ink-900);font-weight:600;}

/* ============ 页面横幅 ============ */
.page-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(118deg,#E4EEF6 0%,#F4F7FA 62%);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-2.png) right center/cover no-repeat;
  opacity:.15;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(27,79,114,.06) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(27,79,114,.06) 1px,transparent 1px);
  background-size:38px 38px;
  -webkit-mask-image:linear-gradient(105deg,transparent 42%,#000 100%);
  mask-image:linear-gradient(105deg,transparent 42%,#000 100%);
}
.hero-inner{position:relative;z-index:2;padding:34px 0 46px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  background:var(--accent-100);color:var(--accent-600);
  font-size:12.5px;font-weight:600;
}
.page-hero h1{
  margin:16px 0 14px;
  font-size:clamp(26px,3.2vw,40px);
  font-weight:700;line-height:1.28;letter-spacing:-.01em;
  color:var(--ink-900);max-width:820px;
}
.hero-sub{max-width:720px;font-size:16.5px;color:var(--ink-700);}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}

/* ============ 快速信息条 ============ */
.quick-strip{background:var(--surface);border-bottom:1px solid var(--line);}
.qs-inner{display:grid;grid-template-columns:repeat(3,1fr);gap:0;}
.qs-item{display:flex;flex-direction:column;gap:2px;padding:22px 26px;border-left:1px solid var(--line);}
.qs-item:first-child{border-left:none;padding-left:0;}
.qs-item i{color:var(--brand-500);font-size:15px;margin-bottom:6px;}
.qs-item strong{font-size:15px;color:var(--ink-900);font-weight:600;}
.qs-item span{font-size:13px;color:var(--ink-500);}

/* ============ 区块 ============ */
.section{padding:80px 0;}
.section-sm{padding:56px 0;}
.sec-head{max-width:760px;margin-bottom:40px;}
.sec-head h2{
  position:relative;padding-left:14px;
  font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.35;
  color:var(--ink-900);letter-spacing:-.01em;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:7px;width:3px;height:18px;
  background:var(--brand-700);border-radius:2px;
}
.sec-head p{margin-top:12px;font-size:15.5px;color:var(--ink-500);}

/* ============ 图文交替 ============ */
.feature-row{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  padding:44px 0;
}
.feature-row + .feature-row{border-top:1px solid var(--line);}
.feature-row.reverse .feature-media{order:2;}
.feature-row.reverse .feature-text{order:1;}
.feature-media{position:relative;}
.feature-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-img);box-shadow:var(--shadow-1);
  transition:transform .35s ease,box-shadow .35s ease;
}
.feature-media:hover img{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.feature-media .num{
  position:absolute;left:-10px;top:-14px;
  font-family:"Inter",sans-serif;font-size:44px;font-weight:700;
  color:var(--brand-100);letter-spacing:-.03em;z-index:-1;
}
.feature-text .label{
  display:inline-block;padding:4px 10px;border-radius:var(--r-pill);
  background:var(--brand-100);color:var(--brand-700);
  font-size:12.5px;font-weight:600;margin-bottom:14px;
}
.feature-text h2{
  font-size:clamp(20px,2.1vw,25px);font-weight:700;line-height:1.4;
  color:var(--ink-900);margin-bottom:14px;letter-spacing:-.01em;
}
.feature-text p{font-size:15.5px;color:var(--ink-700);margin-bottom:16px;}
.check-list{display:flex;flex-direction:column;gap:10px;margin-bottom:20px;}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-700);}
.check-list i{color:var(--accent-600);font-size:14px;margin-top:7px;}
.text-link{font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px;}
.text-link:hover{text-decoration:underline;text-underline-offset:3px;}
.text-link i{font-size:12px;transition:transform .2s ease;}
.text-link:hover i{transform:translateX(3px);}

/* ============ 提示卡 ============ */
.notice-card{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--shadow-1);
}
.notice-card i{color:var(--warn-500);font-size:18px;margin-top:4px;}
.notice-card h3{font-size:16.5px;font-weight:600;color:var(--ink-900);margin-bottom:6px;}
.notice-card p{font-size:14.5px;color:var(--ink-700);}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;}
.faq-acc .accordion-item{
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  overflow:hidden;margin-bottom:12px;box-shadow:var(--shadow-1);
}
.faq-acc .accordion-button{
  background:var(--surface);color:var(--ink-900);
  font-size:16px;font-weight:600;line-height:1.6;
  padding:18px 20px;box-shadow:none;border-radius:14px;
}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--brand-700);background:var(--brand-100);
}
.faq-acc .accordion-button::after{
  background-image:none;content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:12px;color:var(--brand-500);width:auto;height:auto;
  transition:transform .2s ease;
}
.faq-acc .accordion-button:not(.collapsed)::after{color:var(--brand-700);}
.faq-acc .accordion-body{
  padding:2px 20px 20px;font-size:15px;line-height:1.85;color:var(--ink-700);
  background:var(--surface);
}

/* ============ CTA 通栏 ============ */
.cta-band{background:var(--ink-block);color:#D6E4EE;position:relative;overflow:hidden;}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-60px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(62,127,174,.35),transparent 68%);
}
.cta-inner{position:relative;z-index:2;padding:62px 0;display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center;}
.cta-inner h2{font-size:clamp(21px,2.3vw,27px);font-weight:700;color:#fff;line-height:1.4;margin-bottom:12px;}
.cta-inner p{font-size:15.5px;color:#D6E4EE;max-width:560px;}
.cta-points{display:flex;flex-wrap:wrap;gap:20px;margin-top:20px;}
.cta-points span{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;color:#B9D2E5;}
.cta-points i{color:#7FD4C1;}
.cta-side{display:flex;flex-direction:column;gap:14px;align-items:flex-start;}
.cta-side .note{font-size:13px;color:#9FB8CC;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-block);color:#D6E4EE;padding:56px 0 0;}
.f-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:40px;}
.f-brand .brand-mark{background:conic-gradient(from 210deg,#7FB3D5 0 76%,rgba(255,255,255,.2) 76% 100%);}
.f-brand .brand-mark::after{background:var(--ink-block);}
.f-brand strong{display:block;color:#fff;font-size:16px;font-weight:700;margin:14px 0 10px;}
.f-brand p{font-size:13.5px;line-height:1.8;color:#9FB8CC;max-width:340px;}
.f-col h3{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.f-col ul{display:flex;flex-direction:column;gap:10px;}
.f-col a{color:#B9D2E5;font-size:14px;}
.f-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.f-plain li{color:#9FB8CC;font-size:14px;}
.f-bottom{
  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:#8BA6BC;
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  :root{--side-w:208px;}
  .container-x{padding:0 26px;}
  .feature-row{gap:36px;}
}
@media (max-width:991.98px){
  .sidebar{display:none;}
  .section{padding:56px 0;}
  .section-sm{padding:44px 0;}
  .container-x{padding:0 20px;}
  .feature-row{grid-template-columns:1fr;gap:22px;padding:34px 0;}
  .feature-row.reverse .feature-media{order:0;}
  .feature-row.reverse .feature-text{order:0;}
  .feature-media .num{display:none;}
  .cta-inner{grid-template-columns:1fr;gap:26px;padding:48px 0;}
  .f-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .f-brand{grid-column:1/-1;}
  .hero-inner{padding:24px 0 36px;}
  .qs-inner{grid-template-columns:1fr;}
  .qs-item{border-left:none;border-top:1px solid var(--line);padding:16px 0;}
  .qs-item:first-child{border-top:none;padding-top:0;}
  .qs-item:last-child{padding-bottom:20px;}
}
@media (max-width:575.98px){
  body{font-size:15.5px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{justify-content:center;}
  .f-grid{grid-template-columns:1fr;}
  .f-bottom{flex-direction:column;}
  .page-hero h1{margin:12px 0 10px;}
}

/* ============ 覆盖 Bootstrap 默认观感 ============ */
.btn-primary{background:var(--brand-700);border-color:var(--brand-700);border-radius:var(--r-btn);}
.btn-primary:hover{background:var(--brand-600);border-color:var(--brand-600);}
.card{border-color:var(--line);border-radius:var(--r-card);}
.accordion{--bs-accordion-border-color:var(--line);}
a, .link-primary{color:var(--brand-700);}
.form-control{border-radius:var(--r-btn);border-color:var(--line);}
.form-control:focus{border-color:var(--ring);box-shadow:0 0 0 3px rgba(14,124,107,.15);}