/* roulang page: index */
:root{
  --bg-0:#060A12;
  --bg-1:#0B1320;
  --bg-2:#111C2B;
  --brand:#2FE3C4;
  --brand-d:#14B79C;
  --brand-l:#7BF3DE;
  --accent:#FFB547;
  --t1:#EAF2FF;
  --t2:#A6B6CB;
  --t3:#6D7D93;
  --ok:#3ED598;
  --warn:#FFB547;
  --danger:#FF6B6B;
  --glass:rgba(255,255,255,.05);
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.14);
  --r-card:16px;
  --r-big:20px;
  --r-btn:10px;
  --sh-1:0 8px 30px rgba(0,0,0,.35);
  --sh-2:0 18px 48px rgba(0,0,0,.5);
  --sh-glow:0 0 0 1px rgba(47,227,196,.45),0 10px 34px rgba(47,227,196,.28);
  --ease:.25s cubic-bezier(.4,0,.2,1);
  --font:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--t1);
  background:var(--bg-0);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--t1);text-decoration:none;transition:color var(--ease),border-color var(--ease),transform var(--ease)}
a:hover{color:var(--brand-l);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--t1);line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid rgba(47,227,196,.6);outline-offset:2px}
::selection{background:rgba(47,227,196,.28);color:#fff}

.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.container-x{max-width:1280px}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(6,10,18,.78);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.site-header.is-scrolled{
  background:rgba(6,10,18,.94);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px rgba(0,0,0,.45);
}
.nav-shell{
  height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px;
  transition:height var(--ease);
}
.site-header.is-scrolled .nav-shell{height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 34px;
  background:linear-gradient(135deg,var(--brand),var(--brand-d));
  display:grid;place-items:center;color:#04241F;font-weight:800;font-size:15px;letter-spacing:-.5px;
  box-shadow:0 6px 18px rgba(47,227,196,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:16px;font-weight:700;color:var(--t1);letter-spacing:.2px}
.brand-text span{font-size:11px;color:var(--t3);letter-spacing:2px}
.nav-main{display:flex;align-items:center;gap:6px}
.nav-main a{
  position:relative;display:inline-block;
  padding:10px 14px;font-size:15px;font-weight:500;color:var(--t2);
  border-radius:8px;
}
.nav-main a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--brand);opacity:0;transform:scaleX(.4);transition:opacity var(--ease),transform var(--ease);
}
.nav-main a:hover{color:var(--t1);text-decoration:none}
.nav-main a:hover::after{opacity:.55;transform:scaleX(1)}
.nav-main a.is-active{color:var(--t1)}
.nav-main a.is-active::after{opacity:1;transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:var(--r-btn);
  border:1px solid var(--line-strong);background:var(--glass);color:var(--t1);
  font-size:14px;font-weight:500;transition:all var(--ease);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-l);text-decoration:none;transform:translateY(-2px)}
.burger{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);background:var(--glass);color:var(--t1);
}
.burger:hover{border-color:var(--brand);color:var(--brand-l)}

.offcanvas.oc-nav{background:rgba(11,19,32,.98);backdrop-filter:blur(16px);width:320px;color:var(--t1);border-left:1px solid var(--line)}
.oc-nav .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.oc-nav .btn-close{filter:invert(1) grayscale(1) brightness(1.8)}
.oc-nav .offcanvas-body{padding:14px 12px}
.oc-links a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 14px;border-radius:10px;color:var(--t2);font-size:15.5px;
}
.oc-links a:hover{background:var(--glass);color:var(--t1);text-decoration:none}
.oc-links a.is-active{color:var(--brand);background:rgba(47,227,196,.08)}
.oc-links a i{font-size:12px;opacity:.6}

/* ============ 按钮 ============ */
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-btn);border:1px solid transparent;
  background:var(--brand);color:#04241F;font-size:15px;font-weight:700;
  box-shadow:var(--sh-glow);transition:all var(--ease);cursor:pointer;
}
.btn-brand:hover{background:var(--brand-l);color:#04241F;text-decoration:none;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(47,227,196,.6),0 16px 40px rgba(47,227,196,.35)}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-btn);
  border:1px solid var(--line-strong);background:var(--glass);color:var(--t1);
  font-size:15px;font-weight:600;transition:all var(--ease);cursor:pointer;
}
.btn-line:hover{border-color:var(--brand);color:var(--brand-l);text-decoration:none;transform:translateY(-2px);background:rgba(47,227,196,.06)}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--brand);
}
.link-more i{transition:transform var(--ease)}
.link-more:hover{color:var(--brand-l);text-decoration:none}
.link-more:hover i{transform:translateX(3px)}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:104px 0 88px;
  background-image:linear-gradient(180deg,rgba(6,10,18,.72),rgba(6,10,18,.95)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse at 30% 40%,#000 10%,transparent 72%);
  -webkit-mask-image:radial-gradient(ellipse at 30% 40%,#000 10%,transparent 72%);
}
.hero .container-x{position:relative;z-index:2}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:13px;letter-spacing:.5px;
  background:rgba(47,227,196,.12);color:var(--brand);border:1px solid rgba(47,227,196,.24);
  margin-bottom:22px;
}
.hero h1{
  font-size:clamp(32px,5vw,54px);font-weight:700;line-height:1.2;letter-spacing:-.5px;
  margin-bottom:20px;max-width:16em;
}
.hero h1 em{font-style:normal;color:var(--brand-l)}
.hero-sub{font-size:17px;line-height:1.85;color:var(--t2);max-width:44em;margin-bottom:32px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:52px}
.hero-facts{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;
  border-top:1px solid var(--line);padding-top:26px;max-width:900px;
}
.hero-facts .fact{padding-right:20px;border-right:1px solid var(--line)}
.hero-facts .fact:last-child{border-right:0}
.fact-num{
  font-family:var(--mono);font-variant-numeric:tabular-nums;font-weight:700;
  font-size:24px;line-height:1.2;color:var(--brand);letter-spacing:-.5px;
}
.fact-label{font-size:12.5px;color:var(--t3);margin-top:4px;letter-spacing:.4px}

/* ============ 通用板块 ============ */
.section{padding:92px 0}
.section.tight{padding:72px 0}
.section-line{border-top:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:48px}
.section-head .kicker{
  display:inline-block;font-size:13px;letter-spacing:2px;color:var(--brand);
  font-family:var(--mono);text-transform:uppercase;margin-bottom:12px;
}
.section-head h2{font-size:clamp(24px,3vw,34px);margin-bottom:14px;letter-spacing:-.3px}
.section-head p{color:var(--t2);font-size:16px}
.section-head.row-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;max-width:none}

/* ============ 服务能力（非对称） ============ */
.svc-feature{
  position:relative;border-radius:var(--r-big);overflow:hidden;
  border:1px solid var(--line);background:var(--glass);backdrop-filter:blur(16px);
  height:100%;display:flex;flex-direction:column;transition:all var(--ease);
}
.svc-feature:hover{border-color:rgba(47,227,196,.35);transform:translateY(-4px);box-shadow:var(--sh-2)}
.svc-feature img{width:100%;aspect-ratio:16/9;object-fit:cover}
.svc-feature .svc-body{padding:26px 26px 28px}
.svc-feature h3{font-size:20px;margin-bottom:12px}
.svc-feature p{color:var(--t2);font-size:15px;margin-bottom:16px}
.svc-mini{
  border-radius:var(--r-card);border:1px solid var(--line);background:var(--glass);
  backdrop-filter:blur(16px);padding:24px 22px;height:100%;
  display:flex;flex-direction:column;transition:all var(--ease);
}
.svc-mini:hover{border-color:rgba(47,227,196,.35);transform:translateY(-4px);box-shadow:var(--sh-2)}
.svc-ico{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:rgba(47,227,196,.12);color:var(--brand);font-size:18px;margin-bottom:16px;
  border:1px solid rgba(47,227,196,.2);
}
.svc-mini h3{font-size:18px;margin-bottom:10px}
.svc-mini p{color:var(--t2);font-size:14.5px;margin-bottom:16px;flex:1}

/* ============ 数据带 ============ */
.stats-band{
  background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:76px 0;position:relative;overflow:hidden;
}
.stats-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(180deg,rgba(255,255,255,.03) 0 1px,transparent 1px 48px);
  pointer-events:none;
}
.stats-band .container-x{position:relative;z-index:2}
.stat-card{
  border-top:1px solid rgba(47,227,196,.4);
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.01));
  border-radius:0 0 var(--r-card) var(--r-card);
  padding:26px 22px 24px;height:100%;
  transition:all var(--ease);
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-top-color:var(--brand)}
.stat-num{
  font-family:var(--mono);font-variant-numeric:tabular-nums;font-weight:700;
  font-size:clamp(32px,3.4vw,44px);line-height:1.1;letter-spacing:-1px;
  background:linear-gradient(120deg,var(--brand),var(--brand-l));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-unit{font-size:15px;color:var(--t2);margin-left:6px;font-family:var(--font)}
.stat-desc{font-size:12.5px;color:var(--t3);margin-top:10px;letter-spacing:.3px}

/* ============ 场景卡片 ============ */
.scene-card{
  border-radius:var(--r-card);border:1px solid var(--line);background:var(--glass);
  backdrop-filter:blur(16px);overflow:hidden;height:100%;
  display:flex;flex-direction:column;transition:all var(--ease);
}
.scene-card:hover{border-color:rgba(47,227,196,.35);transform:translateY(-4px);box-shadow:var(--sh-2)}
.scene-card .scene-media{position:relative;overflow:hidden}
.scene-card img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s cubic-bezier(.4,0,.2,1)}
.scene-card:hover img{transform:scale(1.03)}
.scene-tag{
  position:absolute;left:14px;top:14px;
  padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(255,181,71,.16);color:var(--accent);border:1px solid rgba(255,181,71,.3);
  backdrop-filter:blur(8px);
}
.scene-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.scene-body h3{font-size:18px;margin-bottom:10px}
.scene-body p{color:var(--t2);font-size:14.5px;flex:1;margin-bottom:16px}

/* ============ 方案选项卡 ============ */
.plan-tabs{display:flex;flex-direction:column;gap:10px}
.plan-tab{
  position:relative;text-align:left;width:100%;
  padding:18px 20px 18px 24px;border-radius:12px;
  border:1px solid transparent;background:transparent;color:var(--t2);
  transition:all var(--ease);cursor:pointer;
}
.plan-tab::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:2px;border-radius:2px;
  background:var(--brand);opacity:0;transition:opacity var(--ease);
}
.plan-tab strong{display:block;font-size:16px;color:var(--t1);font-weight:600;margin-bottom:4px}
.plan-tab span{font-size:13.5px;color:var(--t3)}
.plan-tab:hover{background:rgba(255,255,255,.04);color:var(--t2)}
.plan-tab.is-active{background:rgba(255,255,255,.06);border-color:var(--line)}
.plan-tab.is-active::before{opacity:1}
.plan-tab.is-active strong{color:var(--brand)}
.plan-panel{
  border-radius:var(--r-big);border:1px solid var(--line);background:var(--glass);
  backdrop-filter:blur(16px);padding:34px 32px;box-shadow:var(--sh-1);height:100%;
}
.plan-panel h3{font-size:22px;margin-bottom:14px}
.plan-panel>p{color:var(--t2);font-size:15px;margin-bottom:22px}
.plan-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px 0;border-bottom:1px dashed rgba(255,255,255,.08);
  font-size:15px;color:var(--t2);
}
.plan-list li:last-child{border-bottom:0}
.plan-list i{color:var(--brand);font-size:14px;margin-top:6px}
.plan-pane{display:none}
.plan-pane.is-active{display:block;animation:fadeUp .35s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* ============ 资讯列表 ============ */
.post-card{
  border-radius:var(--r-card);border:1px solid var(--line);background:var(--glass);
  backdrop-filter:blur(16px);overflow:hidden;height:100%;
  display:flex;flex-direction:column;transition:all var(--ease);
}
.post-card:hover{border-color:rgba(47,227,196,.35);transform:translateY(-4px);box-shadow:var(--sh-2)}
.post-card__media{display:block;overflow:hidden}
.post-card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s cubic-bezier(.4,0,.2,1)}
.post-card:hover .post-card__media img{transform:scale(1.03)}
.post-card__body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1}
.post-badge{
  align-self:flex-start;padding:3px 12px;border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(47,227,196,.12);color:var(--brand);border:1px solid rgba(47,227,196,.22);
  margin-bottom:12px;
}
.post-card__title{
  font-size:17px;line-height:1.5;margin-bottom:10px;color:var(--t1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card:hover .post-card__title{color:var(--brand-l)}
.post-card__desc{
  color:var(--t2);font-size:14px;flex:1;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card__meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  border-top:1px solid var(--line);padding-top:14px;
}
.post-card__meta time{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:13px;color:var(--t3)}
.post-card__meta .link-more{font-size:13.5px}
.empty-state{
  border-radius:var(--r-big);border:1px dashed var(--line-strong);background:rgba(255,255,255,.03);
  padding:56px 28px;text-align:center;
}
.empty-state i{font-size:30px;color:var(--brand);margin-bottom:16px;display:block}
.empty-state p{color:var(--t2);font-size:15px;margin-bottom:20px}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px}
.accordion.faq-acc .accordion-item{
  background:transparent;border:0;border-bottom:1px solid var(--line);
}
.accordion.faq-acc .accordion-button{
  background:transparent;color:var(--t1);font-size:16.5px;font-weight:600;
  padding:22px 48px 22px 0;box-shadow:none;border-radius:0;
  transition:color var(--ease);
}
.accordion.faq-acc .accordion-button:not(.collapsed){color:var(--brand);background:transparent;box-shadow:none}
.accordion.faq-acc .accordion-button:focus{box-shadow:none;outline:none}
.accordion.faq-acc .accordion-button:focus-visible{outline:2px solid rgba(47,227,196,.6);outline-offset:2px}
.accordion.faq-acc .accordion-button::after{
  content:"\2b";font-family:"Font Awesome 6 Free";font-weight:900;
  background-image:none;transform:none;position:absolute;right:0;
  width:32px;height:32px;border-radius:50%;
  display:grid;place-items:center;font-size:13px;
  background:rgba(255,255,255,.06);color:var(--brand);border:1px solid var(--line);
  transition:transform var(--ease),background var(--ease);
}
.accordion.faq-acc .accordion-button:not(.collapsed)::after{
  transform:rotate(45deg);background:rgba(47,227,196,.16);color:var(--brand);
}
.accordion.faq-acc .accordion-body{
  padding:0 56px 24px 0;color:var(--t2);font-size:15px;line-height:1.9;max-width:72ch;
  background:rgba(255,255,255,.02);border-radius:0 0 10px 10px;
  padding-left:18px;
}

/* ============ CTA / 表单 ============ */
.cta-section{
  background:linear-gradient(180deg,rgba(11,19,32,.9),rgba(6,10,18,.95)),
             url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:88px 0;
}
.cta-section h2{font-size:clamp(24px,3vw,32px);margin-bottom:16px}
.cta-section .lead{color:var(--t2);font-size:16px;margin-bottom:30px;max-width:36em}
.contact-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:14px 0;border-bottom:1px solid var(--line);font-size:15px;color:var(--t2);
}
.contact-list li:last-child{border-bottom:0}
.contact-list i{color:var(--brand);width:20px;text-align:center;margin-top:5px}
.contact-list strong{display:block;color:var(--t1);font-size:14px;font-weight:600;margin-bottom:2px}
.form-card{
  border-radius:var(--r-big);border:1px solid var(--line);background:rgba(255,255,255,.05);
  backdrop-filter:blur(16px);padding:30px 28px;box-shadow:var(--sh-1);
}
.form-card h3{font-size:19px;margin-bottom:6px}
.form-card .form-hint{color:var(--t3);font-size:13.5px;margin-bottom:22px}
.form-label{font-size:14px;font-weight:600;color:var(--t2);margin-bottom:8px}
.form-control,.form-select{
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.12);
  color:var(--t1);border-radius:var(--r-btn);padding:11px 14px;font-size:15px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.form-control::placeholder{color:var(--t3)}
.form-control:focus,.form-select:focus{
  background:rgba(255,255,255,.06);border-color:var(--brand);color:var(--t1);
  box-shadow:0 0 0 3px rgba(47,227,196,.15);outline:none;
}
.form-select option{background:var(--bg-2);color:var(--t1)}
.form-check-input{background-color:rgba(255,255,255,.08);border-color:rgba(255,255,255,.2);width:1.05em;height:1.05em;margin-top:.35em}
.form-check-input:checked{background-color:var(--brand);border-color:var(--brand)}
.form-check-input:focus{box-shadow:0 0 0 3px rgba(47,227,196,.15);border-color:var(--brand)}
.form-check-label{font-size:13.5px;color:var(--t3);line-height:1.7}
.form-alert{
  display:none;margin-top:14px;padding:10px 14px;border-radius:10px;font-size:13.5px;
  background:rgba(62,213,152,.12);color:var(--ok);border:1px solid rgba(62,213,152,.25);
}
.form-alert.is-show{display:block}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{color:var(--t2);font-size:14px;max-width:32em;margin-bottom:18px}
.footer-col h4{font-size:14px;color:var(--t1);letter-spacing:1px;margin-bottom:16px;font-weight:600}
.footer-col li{margin-bottom:10px}
.footer-col a{color:var(--t2);font-size:14px;display:inline-block;transition:all var(--ease)}
.footer-col a:hover{color:var(--brand);text-decoration:none;transform:translateX(2px)}
.footer-col .txt{color:var(--t2);font-size:14px;line-height:1.7}
.footer-bottom{
  margin-top:52px;border-top:1px solid var(--line);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
}
.footer-bottom p,.footer-bottom span{font-size:13px;color:var(--t3)}
.footer-bottom a{color:var(--t3)}
.footer-bottom a:hover{color:var(--brand);text-decoration:none}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:991.98px){
  .nav-main,.nav-actions .btn-ghost{display:none}
  .burger{display:grid;place-items:center}
  .section{padding:64px 0}
  .section.tight{padding:52px 0}
  .hero{padding:76px 0 64px}
  .stats-band{padding:56px 0}
  .cta-section{padding:64px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .plan-tab::before{top:14px;bottom:14px}
}
@media (max-width:767.98px){
  .container-x{padding:0 18px}
  body{font-size:15.5px}
  .hero-facts{grid-template-columns:repeat(2,minmax(0,1fr));gap:0}
  .hero-facts .fact{padding:14px 16px 14px 0;border-right:0;border-bottom:1px solid var(--line)}
  .hero-facts .fact:nth-child(2n){border-right:0}
  .hero-facts .fact:nth-last-child(-n+2){border-bottom:0}
  .section-head{margin-bottom:34px}
  .plan-panel{padding:26px 22px}
  .form-card{padding:24px 20px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .accordion.faq-acc .accordion-button{padding:18px 44px 18px 0;font-size:15.5px}
  .accordion.faq-acc .accordion-body{padding:0 20px 20px 14px}
}
@media (max-width:575.98px){
  .hero{padding:60px 0 52px}
  .hero h1{font-size:clamp(27px,7.4vw,34px)}
  .hero-sub{font-size:15.5px}
  .hero-cta{gap:10px;margin-bottom:38px}
  .btn-brand,.btn-line{padding:12px 20px;font-size:14.5px;width:100%}
  .hero-facts{grid-template-columns:1fr 1fr}
  .fact-num{font-size:20px}
  .section{padding:52px 0}
  .stats-band{padding:46px 0}
  .cta-section{padding:52px 0}
}

/* roulang page: category1 */
:root{
  --bg-0:#060A12;
  --bg-1:#0B1320;
  --bg-2:#111C2B;
  --brand:#2FE3C4;
  --brand-d:#14B79C;
  --brand-l:#7BF3DE;
  --accent:#FFB547;
  --t1:#EAF2FF;
  --t2:#A6B6CB;
  --t3:#6D7D93;
  --glass:rgba(255,255,255,.05);
  --glass-2:rgba(255,255,255,.03);
  --stroke:rgba(255,255,255,.09);
  --ok:#3ED598;
  --danger:#FF6B6B;
  --r-card:16px;
  --r-lg:20px;
  --r-btn:10px;
  --sh-1:0 8px 30px rgba(0,0,0,.35);
  --sh-2:0 18px 48px rgba(0,0,0,.5);
  --glow:0 0 0 1px rgba(47,227,196,.45), 0 10px 34px rgba(47,227,196,.28);
  --ease:.25s cubic-bezier(.4,0,.2,1);
  --font:"system-ui","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t1);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--ease),transform var(--ease);}
a:hover{color:var(--brand-l);text-decoration:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--t1);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid rgba(47,227,196,.6);
  outline-offset:2px;
  border-radius:6px;
}
.container-x{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1400px){ .container-x{max-width:1280px;} }

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(6,10,18,.72);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease);
}
.site-header.is-scrolled{
  background:rgba(6,10,18,.94);
  border-bottom-color:var(--stroke);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
  transition:height var(--ease);
}
.site-header.is-scrolled .header-inner{height:64px;}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.brand-mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:11px;
  background:linear-gradient(145deg,rgba(47,227,196,.22),rgba(47,227,196,.05));
  border:1px solid rgba(47,227,196,.35);
  color:var(--brand);
  font-weight:700;
  font-size:18px;
  letter-spacing:.5px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16px;font-weight:700;color:var(--t1);letter-spacing:.3px;}
.brand-text span{font-size:10px;letter-spacing:2px;color:var(--t3);}
.brand:hover .brand-text strong{color:var(--brand-l);}

.nav-main{display:flex;align-items:center;gap:28px;}
.nav-main a{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--t2);
  padding:6px 0;
  white-space:nowrap;
}
.nav-main a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--ease);
}
.nav-main a:hover{color:var(--t1);}
.nav-main a:hover::after{transform:scaleX(.5);}
.nav-main a.is-active{color:var(--t1);}
.nav-main a.is-active::after{transform:scaleX(1);}

.header-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 18px;
  border-radius:var(--r-btn);
  border:1px solid rgba(47,227,196,.45);
  color:var(--brand);
  font-size:14px;
  font-weight:500;
  white-space:nowrap;
  transition:all var(--ease);
}
.header-cta:hover{
  background:rgba(47,227,196,.1);
  color:var(--brand-l);
  transform:translateY(-2px);
}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:10px;
  border:1px solid var(--stroke);
  background:var(--glass);
  color:var(--t1);
  align-items:center;
  justify-content:center;
}
@media (max-width:1199px){
  .nav-main{display:none;}
  .header-cta{display:none;}
  .nav-toggle{display:inline-flex;}
}
.offcanvas.offcanvas-end{
  width:320px;
  background:rgba(11,19,32,.98);
  border-left:1px solid var(--stroke);
  color:var(--t1);
}
.offcanvas-header{border-bottom:1px solid var(--stroke);}
.offcanvas-title{font-size:16px;font-weight:700;}
.offcanvas-body .nav-drawer a{
  display:flex;
  align-items:center;
  min-height:48px;
  padding:0 12px;
  border-radius:10px;
  font-size:16px;
  color:var(--t2);
  border-bottom:1px solid rgba(255,255,255,.04);
}
.offcanvas-body .nav-drawer a:hover,
.offcanvas-body .nav-drawer a.is-active{
  background:rgba(47,227,196,.08);
  color:var(--brand-l);
}
.btn-close{filter:invert(1) grayscale(1) brightness(2);}

/* ---------- Buttons ---------- */
.btn-x{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:all var(--ease);
  line-height:1.2;
}
.btn-primary-x{
  background:var(--brand);
  color:#04241F;
  box-shadow:var(--glow);
}
.btn-primary-x:hover{
  background:var(--brand-l);
  color:#04241F;
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(47,227,196,.6),0 16px 40px rgba(47,227,196,.34);
}
.btn-ghost-x{
  background:var(--glass);
  border-color:var(--stroke);
  color:var(--t1);
  backdrop-filter:blur(16px);
}
.btn-ghost-x:hover{
  border-color:rgba(47,227,196,.6);
  color:var(--brand-l);
  transform:translateY(-2px);
}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  color:var(--brand);
}
.link-more i{transition:transform var(--ease);font-size:12px;}
.link-more:hover{color:var(--brand-l);}
.link-more:hover i{transform:translateX(3px);}

/* ---------- Section base ---------- */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-alt{background:var(--bg-1);border-top:1px solid var(--stroke);border-bottom:1px solid var(--stroke);}
.section-head{margin-bottom:44px;max-width:760px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:1.5px;
  color:var(--brand);
  background:rgba(47,227,196,.1);
  border:1px solid rgba(47,227,196,.22);
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:16px;
  text-transform:uppercase;
}
.eyebrow.is-amber{
  color:var(--accent);
  background:rgba(255,181,71,.1);
  border-color:rgba(255,181,71,.24);
}
.section-title{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.3;}
.section-sub{margin-top:14px;color:var(--t2);font-size:15.5px;line-height:1.85;}
.divider-line{height:1px;background:var(--stroke);border:0;margin:0;}

/* ---------- Breadcrumb ---------- */
.breadcrumb-x{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--t3);
  padding:26px 0 0;
}
.breadcrumb-x a{color:var(--t3);}
.breadcrumb-x a:hover{color:var(--brand);}
.breadcrumb-x .sep{opacity:.5;}
.breadcrumb-x .current{color:var(--t2);}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--stroke);
  background:
    linear-gradient(180deg,rgba(6,10,18,.72),rgba(6,10,18,.95)),
    url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
}
.cat-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:56px 56px;
  opacity:.5;
  pointer-events:none;
}
.cat-hero .inner{position:relative;z-index:1;padding:58px 0 78px;}
.hero-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:center;
}
.hero-h1{
  font-size:clamp(32px,5vw,54px);
  font-weight:700;
  line-height:1.2;
  letter-spacing:-.5px;
}
.hero-h1 em{
  font-style:normal;
  color:var(--brand);
  position:relative;
}
.hero-lead{
  margin-top:18px;
  font-size:17px;
  color:var(--t2);
  line-height:1.9;
  max-width:56ch;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-figure{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--stroke);
  box-shadow:var(--sh-2);
  background:var(--bg-2);
  position:relative;
}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero-figure .tag-float{
  position:absolute;
  left:16px;top:16px;
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 12px;
  border-radius:999px;
  font-size:12px;
  background:rgba(6,10,18,.78);
  border:1px solid rgba(255,181,71,.35);
  color:var(--accent);
  backdrop-filter:blur(10px);
}
.quick-strip{
  margin-top:46px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--stroke);
  border:1px solid var(--stroke);
  border-radius:var(--r-card);
  overflow:hidden;
}
.quick-item{
  background:rgba(11,19,32,.72);
  padding:20px 22px;
}
.quick-item .num{
  display:block;
  font-family:ui-monospace，"SFMono-Regular",Menlo,monospace;
  font-variant-numeric:tabular-nums;
  font-size:26px;
  font-weight:700;
  color:var(--brand);
  letter-spacing:.5px;
}
.quick-item .lab{font-size:12.5px;color:var(--t3);margin-top:4px;display:block;}

@media (max-width:991px){
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .quick-strip{grid-template-columns:repeat(2,1fr);}
  .cat-hero .inner{padding:40px 0 58px;}
}
@media (max-width:575px){
  .quick-strip{grid-template-columns:1fr;}
  .hero-lead{font-size:16px;}
}

/* ---------- Z 型图文 ---------- */
.z-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:52px;
  align-items:center;
  padding:54px 0;
}
.z-row + .z-row{border-top:1px solid rgba(255,255,255,.06);}
.z-row.is-reverse .z-media{order:2;}
.z-row.is-reverse .z-body{order:1;}
.z-media{
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--stroke);
  background:var(--bg-2);
  box-shadow:var(--sh-1);
  transition:all var(--ease);
}
.z-media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.z-media:hover{border-color:rgba(47,227,196,.35);box-shadow:var(--sh-2);transform:translateY(-4px);}
.z-index{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:ui-monospace,Menlo,monospace;
  font-size:13px;
  color:var(--accent);
  letter-spacing:1px;
  margin-bottom:14px;
}
.z-index::before{
  content:"";
  width:26px;height:1px;
  background:rgba(255,181,71,.6);
  display:inline-block;
}
.z-body h2{font-size:clamp(22px,2.6vw,30px);}
.z-body p{margin-top:16px;color:var(--t2);font-size:16px;line-height:1.9;}
.z-points{margin-top:22px;display:grid;gap:12px;}
.z-points li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:14.5px;
  color:var(--t2);
  line-height:1.75;
}
.z-points li i{color:var(--brand);font-size:13px;margin-top:7px;flex-shrink:0;}
@media (max-width:991px){
  .z-row{grid-template-columns:1fr;gap:26px;padding:40px 0;}
  .z-row.is-reverse .z-media{order:0;}
  .z-row.is-reverse .z-body{order:0;}
}

/* ---------- Checklist ---------- */
.check-panel{
  border:1px solid var(--stroke);
  border-radius:var(--r-lg);
  background:
    linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  backdrop-filter:blur(16px);
  padding:44px;
}
.check-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:18px 34px;
  margin-top:30px;
}
.check-item{
  display:flex;
  gap:14px;
  padding:18px 20px;
  border-radius:14px;
  background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.07);
  transition:all var(--ease);
}
.check-item:hover{
  border-color:rgba(47,227,196,.32);
  background:rgba(47,227,196,.05);
  transform:translateY(-3px);
}
.check-item .tick{
  width:26px;height:26px;
  border-radius:50%;
  display:grid;place-items:center;
  background:rgba(47,227,196,.14);
  border:1px solid rgba(47,227,196,.4);
  color:var(--brand);
  font-size:12px;
  flex-shrink:0;
  margin-top:3px;
}
.check-item h3{font-size:16px;font-weight:600;margin-bottom:6px;}
.check-item p{font-size:14px;color:var(--t2);line-height:1.75;}
@media (max-width:767px){
  .check-panel{padding:28px 20px;}
  .check-grid{grid-template-columns:1fr;}
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--bg-1);
  border-top:1px solid var(--stroke);
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:100% 44px;
  pointer-events:none;
}
.cta-grid{
  position:relative;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:52px;
  align-items:start;
}
.cta-info h2{font-size:clamp(24px,3vw,32px);}
.cta-info p{margin-top:16px;color:var(--t2);font-size:15.5px;line-height:1.9;}
.contact-list{margin-top:28px;display:grid;gap:14px;}
.contact-list li{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:14.5px;
  color:var(--t2);
}
.contact-list li i{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:10px;
  background:rgba(47,227,196,.1);
  border:1px solid rgba(47,227,196,.22);
  color:var(--brand);
  font-size:13px;
  flex-shrink:0;
}
.form-card{
  border:1px solid var(--stroke);
  border-radius:var(--r-lg);
  background:rgba(255,255,255,.05);
  backdrop-filter:blur(16px);
  padding:34px;
  box-shadow:var(--sh-1);
}
.form-card h3{font-size:19px;margin-bottom:6px;}
.form-card .hint{font-size:13px;color:var(--t3);margin-bottom:22px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;color:var(--t2);margin-bottom:7px;}
.field .req{color:var(--accent);margin-left:2px;}
.form-control-x{
  width:100%;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-btn);
  padding:12px 14px;
  color:var(--t1);
  font-size:15px;
  transition:all var(--ease);
  appearance:none;
}
.form-control-x::placeholder{color:var(--t3);}
.form-control-x:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(47,227,196,.15);
  background:rgba(255,255,255,.06);
}
select.form-control-x{
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%236D7D93'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 14px center;
  background-size:14px;
  padding-right:40px;
}
select.form-control-x option{background:#0B1320;color:#EAF2FF;}
textarea.form-control-x{min-height:104px;resize:vertical;}
.consent{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:13px;
  color:var(--t3);
  margin:6px 0 20px;
  line-height:1.7;
}
.consent input{margin-top:4px;accent-color:#2FE3C4;width:15px;height:15px;flex-shrink:0;}
.form-note{
  margin-top:14px;
  font-size:13px;
  color:var(--brand);
  min-height:20px;
}
@media (max-width:991px){
  .cta-grid{grid-template-columns:1fr;gap:34px;}
  .form-card{padding:26px 20px;}
}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--bg-1);
  border-top:1px solid var(--stroke);
  padding:64px 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:44px;
}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:14px;color:var(--t2);line-height:1.85;max-width:38ch;}
.footer-brand .link-more{margin-top:16px;}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:var(--t1);
  margin-bottom:16px;
}
.footer-col ul{display:grid;gap:11px;}
.footer-col ul a{
  font-size:14px;
  color:var(--t2);
  display:inline-block;
  transition:all var(--ease);
}
.footer-col ul a:hover{color:var(--brand);transform:translateX(2px);}
.footer-col .txt{font-size:14px;color:var(--t2);line-height:1.75;}
.footer-bottom{
  margin-top:46px;
  padding-top:22px;
  border-top:1px solid var(--stroke);
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  align-items:center;
  font-size:13px;
  color:var(--t3);
}
.footer-bottom a{color:var(--t3);}
.footer-bottom a:hover{color:var(--brand);}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr;}
  .section{padding:56px 0;}
  .section-tight{padding:46px 0;}
  .container-x{padding:0 18px;}
}

/* roulang page: article */
:root{
  --bg-0:#060A12;
  --bg-1:#0B1320;
  --bg-2:#111C2B;
  --brand:#2FE3C4;
  --brand-d:#14B79C;
  --brand-l:#7BF3DE;
  --accent:#FFB547;
  --t1:#EAF2FF;
  --t2:#A6B6CB;
  --t3:#6D7D93;
  --glass:rgba(255,255,255,.05);
  --glass-2:rgba(255,255,255,.03);
  --glass-bd:rgba(255,255,255,.09);
  --line:rgba(255,255,255,.08);
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:10px;
  --sh-1:0 8px 30px rgba(0,0,0,.35);
  --sh-2:0 18px 48px rgba(0,0,0,.5);
  --sh-glow:0 0 0 1px rgba(47,227,196,.45), 0 10px 34px rgba(47,227,196,.28);
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t1);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:64px 64px,64px 64px;
  mask-image:radial-gradient(circle at 50% 20%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 20%,#000 0%,transparent 78%);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .25s var(--ease),text-decoration-color .25s var(--ease)}
a:hover{color:var(--brand-l);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--t1)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid rgba(47,227,196,.6);outline-offset:2px}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}
@media (min-width:1400px){.container-x{max-width:1280px}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1040;
  background:rgba(6,10,18,.72);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease);
}
.site-header.is-scrolled{background:rgba(6,10,18,.94);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:32px;height:72px;transition:height .25s var(--ease)}
.site-header.is-scrolled .header-inner{height:64px}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--t1);flex:none}
.brand:hover{color:var(--t1);text-decoration:none}
.brand-mark{
  width:38px;height:38px;flex:none;border-radius:12px;
  display:grid;place-items:center;
  font-size:18px;font-weight:700;color:#04241F;
  background:linear-gradient(135deg,var(--brand-l),var(--brand-d));
  box-shadow:0 6px 20px rgba(47,227,196,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;letter-spacing:.5px}
.brand-text span{font-size:10px;letter-spacing:2.4px;color:var(--t3);text-transform:uppercase}
.nav-main{display:none;align-items:center;gap:30px;margin-left:auto}
.nav-main a{
  position:relative;
  font-size:15px;font-weight:500;color:var(--t2);
  padding:6px 0;
}
.nav-main a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform .25s var(--ease);
}
.nav-main a:hover{color:var(--t1);text-decoration:none}
.nav-main a:hover::after{transform:scaleX(1)}
.nav-main a.is-active{color:var(--t1)}
.nav-main a.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.nav-main + .header-actions{margin-left:0}
.nav-burger{
  width:42px;height:42px;border-radius:12px;
  background:var(--glass);border:1px solid var(--glass-bd);color:var(--t1);
  display:grid;place-items:center;font-size:16px;cursor:pointer;
  transition:border-color .25s var(--ease),color .25s var(--ease);
}
.nav-burger:hover{border-color:rgba(47,227,196,.45);color:var(--brand-l)}
@media (min-width:992px){
  .nav-main{display:flex}
  .header-actions{margin-left:0}
}

/* 移动端抽屉 */
.nav-drawer{background:rgba(9,15,25,.97)!important;color:var(--t1);border-left:1px solid var(--glass-bd);width:320px!important}
.nav-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.drawer-title{font-size:15px;font-weight:700;letter-spacing:.5px}
.btn-close-drawer{
  width:38px;height:38px;border-radius:10px;background:var(--glass);
  border:1px solid var(--glass-bd);color:var(--t1);display:grid;place-items:center;
}
.nav-drawer .offcanvas-body{padding:10px 20px 28px}
.nav-drawer .offcanvas-body a{
  display:block;padding:14px 4px;min-height:48px;font-size:15.5px;color:var(--t2);
  border-bottom:1px solid var(--line);
}
.nav-drawer .offcanvas-body a.is-active{color:var(--brand)}
.nav-drawer .offcanvas-body a:hover{color:var(--t1);text-decoration:none}

/* ---------- 通用按钮 / 徽章 ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease),color .25s var(--ease);
}
.btn-x:hover{text-decoration:none;transform:translateY(-2px)}
.btn-glow{background:var(--brand);color:#04241F;box-shadow:var(--sh-glow)}
.btn-glow:hover{background:var(--brand-l);color:#04241F;box-shadow:0 0 0 1px rgba(47,227,196,.6),0 16px 40px rgba(47,227,196,.34)}
.btn-ghost{background:var(--glass);border-color:var(--glass-bd);color:var(--t1);backdrop-filter:blur(12px)}
.btn-ghost:hover{border-color:rgba(47,227,196,.55);color:var(--brand-l)}
.btn-sm-x{padding:9px 18px;font-size:14px}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.4px;
  background:rgba(47,227,196,.12);color:var(--brand);border:1px solid rgba(47,227,196,.2);
}
.pill-accent{background:rgba(255,181,71,.12);color:var(--accent);border-color:rgba(255,181,71,.24)}
.link-more{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--brand);
  transition:gap .25s var(--ease),color .25s var(--ease);
}
.link-more:hover{gap:12px;text-decoration:none;color:var(--brand-l)}

/* ---------- 进度条 ---------- */
.read-progress{position:fixed;top:0;left:0;height:2px;width:0;background:linear-gradient(90deg,var(--brand-d),var(--brand-l));z-index:1050;transition:width .12s linear}

/* ---------- 面包屑 + 文章头 ---------- */
.article-head{
  position:relative;
  padding:56px 0 46px;
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(6,10,18,.82),rgba(6,10,18,.96)),url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--t3);margin-bottom:22px}
.crumbs a{color:var(--t3)}
.crumbs a:hover{color:var(--brand)}
.crumb-sep{color:var(--t3);opacity:.65}
.crumb-current{color:var(--t2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:min(560px,60vw)}
.article-head h1{
  font-size:clamp(26px,3.4vw,40px);
  line-height:1.25;
  letter-spacing:.2px;
  max-width:900px;
  margin:16px 0 20px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--t3)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--t3);opacity:.6}
.mono{font-variant-numeric:tabular-nums;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}

/* ---------- 正文布局 ---------- */
.article-wrap{padding:56px 0 80px}
.article-layout{display:flex;gap:52px;justify-content:center;align-items:flex-start}
.article-main{width:100%;max-width:800px;min-width:0}
.article-side{display:none;width:236px;flex:none;position:sticky;top:104px}
@media (min-width:1200px){.article-side{display:block}}
.side-title{font-size:12px;letter-spacing:1.6px;text-transform:uppercase;color:var(--t3);margin-bottom:14px}
.toc-list{display:flex;flex-direction:column;gap:2px;border-left:1px solid var(--line);padding-left:0}
.toc-item{
  position:relative;display:block;padding:7px 0 7px 16px;font-size:13.5px;color:var(--t2);
  border-left:2px solid transparent;margin-left:-1px;
  transition:color .25s var(--ease),border-color .25s var(--ease);
}
.toc-item:hover{color:var(--t1);text-decoration:none}
.toc-item.is-sub{padding-left:28px;font-size:13px;color:var(--t3)}
.toc-item.is-current{color:var(--brand);border-left-color:var(--brand);font-weight:600}
.side-cta{
  margin-top:26px;padding:20px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--glass-bd);backdrop-filter:blur(16px);
}
.side-cta p{font-size:13.5px;color:var(--t2);line-height:1.75;margin-bottom:14px}
.side-back{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--t2);margin-top:18px}
.side-back:hover{color:var(--brand);text-decoration:none}
.side-back i{transition:transform .25s var(--ease)}
.side-back:hover i{transform:translateX(-3px)}

/* ---------- 正文排版 ---------- */
.article-body{font-size:17px;line-height:1.9;color:var(--t2)}
.article-body > *:first-child{margin-top:0!important}
.article-body p{margin:0 0 1.2em;color:var(--t2)}
.article-body h2{
  font-size:clamp(21px,2.2vw,26px);
  color:var(--t1);
  margin:2em 0 .8em;
  padding-left:16px;
  position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand),var(--brand-d));
}
.article-body h3{font-size:20px;color:var(--t1);margin:1.6em 0 .6em}
.article-body h4{font-size:17px;color:var(--t1);margin:1.4em 0 .5em}
.article-body strong{color:var(--t1);font-weight:700}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:0}
.article-body ul li,.article-body ol li{
  position:relative;padding-left:24px;margin-bottom:8px;color:var(--t2);
}
.article-body ul li::before{
  content:"";position:absolute;left:6px;top:.75em;width:6px;height:6px;border-radius:2px;
  background:var(--brand);opacity:.85;
}
.article-body ol{counter-reset:olc}
.article-body ol li{counter-increment:olc}
.article-body ol li::before{
  content:counter(olc,decimal-leading-zero);
  position:absolute;left:0;top:0;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:13px;font-weight:700;color:var(--brand);
}
.article-body blockquote{
  margin:1.5em 0;padding:18px 22px;border-left:3px solid var(--brand);
  background:rgba(255,255,255,.04);border-radius:0 12px 12px 0;color:var(--t2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:14px;margin:1.6em auto;box-shadow:var(--sh-1)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--t3);text-align:center;margin-top:10px}
.article-body table{
  display:block;width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;
  border-collapse:collapse;margin:1.6em 0;font-size:15px;
  border:1px solid var(--glass-bd);border-radius:12px;
}
.article-body th,.article-body td{padding:11px 16px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}
.article-body th{background:var(--bg-2);color:var(--t1);font-weight:600}
.article-body tr:nth-child(even) td{background:rgba(255,255,255,.03)}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.92em;background:var(--bg-2);color:var(--brand-l);
  padding:2px 6px;border-radius:4px;
}
.article-body pre{
  background:var(--bg-1);border:1px solid var(--glass-bd);border-radius:12px;
  padding:18px;overflow-x:auto;margin:1.6em 0;
}
.article-body pre code{background:none;color:var(--t2);padding:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}
.article-body a{color:var(--brand);text-decoration:underline;text-decoration-color:rgba(47,227,196,.35);text-underline-offset:3px}
.article-body a:hover{color:var(--brand-l);text-decoration-color:var(--brand-l)}

/* 内容缺失空态 */
.empty-card{
  text-align:center;padding:56px 28px;border-radius:var(--radius-lg);
  background:var(--glass);border:1px solid var(--glass-bd);backdrop-filter:blur(16px);
}
.empty-card i{font-size:32px;color:var(--brand);margin-bottom:16px;display:block}
.empty-card h2{font-size:22px;margin-bottom:10px}
.empty-card p{color:var(--t2);font-size:15px;margin-bottom:22px}

/* ---------- 标签与尾部 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:44px 0 0;padding-top:28px;border-top:1px solid var(--line)}
.tag-row .pill{background:var(--glass);color:var(--t2);border-color:var(--glass-bd)}
.tag-row .pill:hover{color:var(--brand);border-color:rgba(47,227,196,.4);text-decoration:none}

.article-foot{margin-top:36px}
.back-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--t2);
  transition:color .25s var(--ease),transform .25s var(--ease);
}
.back-link i{transition:transform .25s var(--ease)}
.back-link:hover{color:var(--brand);text-decoration:none;transform:translateX(-2px)}
.back-link:hover i{transform:translateX(-3px)}

.next-row{display:grid;grid-template-columns:1fr;gap:16px;margin-top:52px}
@media (min-width:768px){.next-row{grid-template-columns:1fr 1fr}}
.next-card{
  display:block;padding:22px 24px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--glass-bd);backdrop-filter:blur(16px);
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.next-card:hover{transform:translateY(-3px);border-color:rgba(47,227,196,.35);box-shadow:var(--sh-2);text-decoration:none}
.next-card span{display:flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:1px;color:var(--t3);margin-bottom:10px}
.next-card h3{font-size:17px;color:var(--t1);line-height:1.5}
.next-card .arrow{color:var(--brand);transition:transform .25s var(--ease);display:inline-block}
.next-card:hover .arrow{transform:translateX(4px)}

/* ---------- 相关推荐 ---------- */
.related{padding:76px 0;background:var(--bg-1);border-top:1px solid var(--line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:38px}
.sec-head h2{font-size:clamp(24px,3vw,32px)}
.sec-head p{color:var(--t3);font-size:14px;margin-top:10px;max-width:520px}
.related-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media (min-width:768px){.related-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:992px){.related-grid{grid-template-columns:repeat(3,1fr)}}
.rcard{
  display:flex;flex-direction:column;overflow:hidden;height:100%;
  border-radius:var(--radius);background:var(--glass);border:1px solid var(--glass-bd);
  backdrop-filter:blur(16px);
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.rcard:hover{transform:translateY(-4px);border-color:rgba(47,227,196,.35);box-shadow:var(--sh-2);text-decoration:none}
.rcard-media{position:relative;aspect-ratio:16/9;overflow:hidden}
.rcard-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.rcard:hover .rcard-media img{transform:scale(1.04)}
.rcard-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,18,.05),rgba(6,10,18,.55))}
.rcard-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.rcard-body h3{font-size:17.5px;line-height:1.5;color:var(--t1)}
.rcard-body p{font-size:14px;color:var(--t2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.rcard-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--t3)}
.rcard-foot .go{color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.rcard-foot .go i{transition:transform .25s var(--ease)}
.rcard:hover .rcard-foot .go i{transform:translateX(3px)}

/* ---------- CTA ---------- */
.cta-band{padding:76px 0;border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(6,10,18,.9),rgba(6,10,18,.98)),url("/assets/images/backpic/back-3.png") center/cover no-repeat}
.cta-box{
  display:flex;flex-direction:column;gap:26px;justify-content:space-between;align-items:flex-start;
  padding:34px 34px;border-radius:var(--radius-lg);
  background:rgba(255,255,255,.05);border:1px solid var(--glass-bd);backdrop-filter:blur(16px);
  box-shadow:var(--sh-1);
}
.cta-box h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px}
.cta-box p{color:var(--t2);font-size:15px;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
@media (min-width:992px){.cta-box{flex-direction:row;align-items:center}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:64px 0 26px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:38px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:992px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:44px}}
.footer-brand p{font-size:14px;color:var(--t2);line-height:1.85;margin:18px 0 16px;max-width:340px}
.footer-col h4{font-size:14px;letter-spacing:1.2px;color:var(--t1);margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:var(--t2);display:inline-block;transition:color .25s var(--ease),transform .25s var(--ease)}
.footer-col a:hover{color:var(--brand);transform:translateX(2px);text-decoration:none}
.footer-col .txt{font-size:14px;color:var(--t2);line-height:1.8}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
}
.footer-bottom p{font-size:13px;color:var(--t3)}
.footer-bottom a{color:var(--t3)}
.footer-bottom a:hover{color:var(--brand);text-decoration:none}

/* ---------- 断点微调 ---------- */
@media (max-width:991px){
  .header-inner{gap:16px}
  .article-head{padding:44px 0 36px}
  .article-wrap{padding:44px 0 64px}
  .related,.cta-band{padding:60px 0}
  .cta-box{padding:28px 24px}
}
@media (max-width:575px){
  .container-x{padding:0 18px}
  .brand-text strong{font-size:14.5px}
  .brand-text span{letter-spacing:1.6px;font-size:9px}
  .article-head h1{font-size:26px}
  .article-body{font-size:16px;line-height:1.85}
  .crumb-current{max-width:46vw}
  .sec-head{flex-direction:column;align-items:flex-start}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category2 */
:root{
  --bg-0:#060A12;
  --bg-1:#0B1320;
  --bg-2:#111C2B;
  --brand:#2FE3C4;
  --brand-d:#14B79C;
  --brand-l:#7BF3DE;
  --accent:#FFB547;
  --t1:#EAF2FF;
  --t2:#A6B6CB;
  --t3:#6D7D93;
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.14);
  --glass:rgba(255,255,255,.05);
  --glass-2:rgba(255,255,255,.03);
  --ok:#3ED598;
  --warn:#FFB547;
  --danger:#FF6B6B;
  --r-card:16px;
  --r-lg:20px;
  --r-btn:10px;
  --sh-1:0 8px 30px rgba(0,0,0,.35);
  --sh-2:0 18px 48px rgba(0,0,0,.5);
  --sh-glow:0 0 0 1px rgba(47,227,196,.45),0 10px 34px rgba(47,227,196,.28);
  --tr:.25s cubic-bezier(.4,0,.2,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t1);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(900px 520px at 10% -12%, rgba(47,227,196,.10), transparent 62%),
    radial-gradient(760px 420px at 98% 3%, rgba(255,181,71,.055), transparent 60%);
}
body > *{position:relative;z-index:1;}

img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-l);text-decoration:none;transition:color var(--tr);}
a:hover{color:var(--brand);}
p{margin:0 0 1em;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--t1);letter-spacing:.2px;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid rgba(47,227,196,.6);outline-offset:2px;border-radius:6px;}

.container-x{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1400px){
  .container-x{max-width:1280px;}
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(6,10,18,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background var(--tr),border-color var(--tr);
}
.site-header.is-scrolled{
  background:rgba(6,10,18,.94);
  border-bottom-color:var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:26px;
  height:72px;
  transition:height var(--tr);
}
.site-header.is-scrolled .header-inner{height:64px;}

.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--t1);
  flex:0 0 auto;
}
.brand:hover{color:var(--t1);}
.brand-mark{
  width:34px;height:34px;
  border-radius:9px;
  display:grid;place-items:center;
  font-size:17px;font-weight:700;
  color:#04241F;
  background:linear-gradient(135deg,var(--brand),var(--brand-d));
  box-shadow:0 0 0 1px rgba(47,227,196,.4),0 6px 20px rgba(47,227,196,.25);
}
.brand-text strong{
  display:block;
  font-size:16px;
  line-height:1.2;
  letter-spacing:.4px;
  white-space:nowrap;
}
.brand-text span{
  display:block;
  font-size:10px;
  letter-spacing:.22em;
  color:var(--t3);
  line-height:1.4;
}

.nav-main{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:auto;
}
.nav-main a{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--t2);
  padding:6px 0;
  white-space:nowrap;
}
.nav-main a:hover{color:var(--t1);}
.nav-main a.is-active{color:var(--t1);}
.nav-main a.is-active::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-8px;
  height:2px;border-radius:2px;
  background:var(--brand);
  box-shadow:0 0 12px rgba(47,227,196,.7);
}

.header-actions{
  display:flex;
  align-items:center;
  gap:14px;
  margin-left:8px;
}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:10px;
  border:1px solid var(--line-2);
  background:var(--glass);
  color:var(--t1);
  font-size:17px;
  cursor:pointer;
  transition:var(--tr);
}
.nav-toggle:hover{border-color:rgba(47,227,196,.5);color:var(--brand);}

/* ---------- Buttons ---------- */
.btn-x{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:var(--tr);
  line-height:1.4;
}
.btn-solid{
  background:linear-gradient(135deg,var(--brand),var(--brand-d));
  color:#04241F;
  box-shadow:var(--sh-glow);
}
.btn-solid:hover{
  color:#04241F;
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(47,227,196,.6),0 16px 40px rgba(47,227,196,.35);
}
.btn-ghost{
  background:var(--glass);
  border-color:var(--line-2);
  color:var(--t1);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{
  color:var(--brand);
  border-color:rgba(47,227,196,.55);
  transform:translateY(-2px);
}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
}
.link-more i{transition:transform var(--tr);font-size:12px;}
.link-more:hover i{transform:translateX(3px);}

/* ---------- Offcanvas ---------- */
.offcanvas.mobile-drawer{
  background:rgba(11,19,32,.97);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  color:var(--t1);
  border-left:1px solid var(--line);
  width:320px;
}
.mobile-drawer .offcanvas-header{
  border-bottom:1px solid var(--line);
  padding:18px 20px;
}
.close-x{
  width:38px;height:38px;
  border-radius:10px;
  border:1px solid var(--line-2);
  background:transparent;
  color:var(--t2);
  font-size:16px;
  cursor:pointer;
  transition:var(--tr);
}
.close-x:hover{color:var(--brand);border-color:rgba(47,227,196,.5);}
.nav-mobile{display:flex;flex-direction:column;}
.nav-mobile a{
  display:flex;
  align-items:center;
  min-height:48px;
  padding:0 4px;
  font-size:16px;
  color:var(--t2);
  border-bottom:1px solid var(--line);
}
.nav-mobile a:hover{color:var(--brand);}
.nav-mobile a.is-active{color:var(--brand-l);font-weight:600;}
.nav-mobile a.is-active::before{
  content:"";
  width:3px;height:18px;
  border-radius:2px;
  background:var(--brand);
  margin-right:10px;
}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:76px 0 70px;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(6,10,18,.78),rgba(6,10,18,.96));
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:46px 46px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 88%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 88%);
  pointer-events:none;
}
.page-hero .container-x{position:relative;z-index:2;}

.crumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:14px;
  color:var(--t3);
  margin-bottom:26px;
}
.crumb a{color:var(--t3);}
.crumb a:hover{color:var(--brand);}
.crumb span.dot{color:var(--t3);opacity:.6;}
.crumb span.now{color:var(--t2);}

.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:56px;
  align-items:center;
}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--brand);
  background:rgba(47,227,196,.12);
  border:1px solid rgba(47,227,196,.28);
  margin-bottom:20px;
}
.page-hero h1{
  font-size:clamp(30px,4.4vw,48px);
  line-height:1.22;
  margin-bottom:20px;
}
.page-hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,var(--brand),var(--brand-l));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  font-size:17px;
  color:var(--t2);
  max-width:56ch;
  margin-bottom:30px;
}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;}

.hero-panel{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  padding:28px;
  box-shadow:var(--sh-1);
}
.hero-panel h2{
  font-size:15px;
  font-weight:600;
  color:var(--t2);
  letter-spacing:.06em;
  margin-bottom:20px;
  display:flex;
  align-items:center;
  gap:10px;
}
.hero-panel h2::before{
  content:"";
  width:4px;height:16px;
  border-radius:2px;
  background:var(--brand);
}
.metric-row{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:14px;
  margin-bottom:24px;
}
.metric{
  border-top:1px solid rgba(47,227,196,.35);
  padding-top:12px;
}
.metric b{
  display:block;
  font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  font-variant-numeric:tabular-nums;
  font-size:24px;
  font-weight:700;
  background:linear-gradient(120deg,var(--brand),var(--brand-l));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  line-height:1.3;
}
.metric span{
  display:block;
  font-size:12px;
  color:var(--t3);
}
.hero-list{display:flex;flex-direction:column;gap:12px;}
.hero-list li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:14px;
  color:var(--t2);
  line-height:1.7;
}
.hero-list i{
  color:var(--brand);
  font-size:13px;
  margin-top:5px;
}

/* ---------- Section base ---------- */
.sec{padding:88px 0;}
.sec-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{margin-bottom:44px;max-width:760px;}
.sec-head h2{
  font-size:clamp(24px,3vw,34px);
  line-height:1.3;
  margin-bottom:14px;
}
.sec-head h2::after{
  content:"";
  display:block;
  width:52px;height:3px;
  border-radius:3px;
  margin-top:16px;
  background:linear-gradient(90deg,var(--brand),rgba(47,227,196,0));
}
.sec-head p{color:var(--t2);font-size:16px;margin:0;}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.16em;
  color:var(--accent);
  margin-bottom:12px;
  text-transform:uppercase;
}

/* ---------- Capability cards ---------- */
.cap-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px;
}
.cap-card{
  position:relative;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 26px 26px 30px;
  transition:var(--tr);
  overflow:hidden;
}
.cap-card::before{
  content:"";
  position:absolute;
  left:0;top:22px;bottom:22px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:linear-gradient(180deg,var(--brand),rgba(47,227,196,0));
  opacity:.85;
}
.cap-card:hover{
  transform:translateY(-4px);
  border-color:rgba(47,227,196,.35);
  box-shadow:var(--sh-2);
}
.cap-num{
  font-family:ui-monospace,Menlo,Consolas,monospace;
  font-variant-numeric:tabular-nums;
  font-size:13px;
  letter-spacing:.14em;
  color:var(--accent);
}
.cap-card h3{font-size:19px;font-weight:600;margin:8px 0 10px;}
.cap-card p{font-size:14.5px;color:var(--t2);margin:0;}

.cap-media{
  display:grid;
  grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);
  gap:36px;
  align-items:center;
  background:var(--glass-2);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:28px;
  margin-bottom:24px;
}
.cap-media img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:14px;
  border:1px solid var(--line);
}
.cap-media h3{font-size:22px;margin-bottom:12px;}
.cap-media p{font-size:15px;color:var(--t2);margin:0 0 16px;}

/* ---------- Timeline ---------- */
.timeline{position:relative;padding-left:46px;}
.timeline::before{
  content:"";
  position:absolute;
  left:13px;top:8px;bottom:12px;
  width:1px;
  background:linear-gradient(180deg,rgba(47,227,196,.75),rgba(47,227,196,.12) 70%,transparent);
}
.tl-item{position:relative;padding-bottom:38px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;
  left:-46px;top:6px;
  width:27px;height:27px;
  border-radius:50%;
  background:var(--bg-1);
  border:1px solid rgba(47,227,196,.5);
  display:grid;place-items:center;
  box-shadow:0 0 0 4px rgba(47,227,196,.07);
}
.tl-dot::after{
  content:"";
  width:9px;height:9px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 12px rgba(47,227,196,.9);
}
.tl-body{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px 24px;
  transition:var(--tr);
}
.tl-body:hover{
  border-color:rgba(47,227,196,.32);
  box-shadow:var(--sh-1);
  transform:translateY(-2px);
}
.tl-num{
  font-family:ui-monospace,Menlo,Consolas,monospace;
  font-variant-numeric:tabular-nums;
  font-size:13px;
  letter-spacing:.16em;
  color:var(--accent);
}
.tl-body h3{font-size:19px;font-weight:600;margin:6px 0 8px;}
.tl-body p{font-size:14.5px;color:var(--t2);margin:0;}

/* ---------- Scene chips ---------- */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
}
.scene-card{
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px 22px;
  transition:var(--tr);
}
.scene-card:hover{
  border-color:rgba(47,227,196,.35);
  transform:translateY(-4px);
  box-shadow:var(--sh-1);
}
.scene-icon{
  width:42px;height:42px;
  border-radius:12px;
  display:grid;place-items:center;
  background:rgba(47,227,196,.1);
  border:1px solid rgba(47,227,196,.25);
  color:var(--brand);
  font-size:17px;
  margin-bottom:16px;
}
.scene-card h3{font-size:16.5px;font-weight:600;margin-bottom:8px;}
.scene-card p{font-size:14px;color:var(--t2);margin:0;}

/* ---------- Notice strip ---------- */
.notice{
  border-left:3px solid var(--accent);
  background:rgba(255,181,71,.06);
  border-radius:0 var(--r-card) var(--r-card) 0;
  padding:26px 28px;
  border-top:1px solid var(--line);
  border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.notice h3{
  font-size:18px;
  margin-bottom:14px;
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--accent);
}
.notice ul{display:flex;flex-direction:column;gap:10px;}
.notice li{
  display:flex;
  gap:10px;
  font-size:14.5px;
  color:var(--t2);
  line-height:1.75;
}
.notice li i{color:var(--accent);font-size:13px;margin-top:5px;}

/* ---------- FAQ ---------- */
.faq-acc .accordion-item{
  background:transparent;
  border:0;
  border-top:1px solid var(--line);
}
.faq-acc .accordion-item:last-child{border-bottom:1px solid var(--line);}
.faq-acc .accordion-button{
  position:relative;
  background:transparent;
  color:var(--t1);
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  padding:22px 52px 22px 0;
  border-radius:0;
  box-shadow:none;
  transition:color var(--tr),background var(--tr);
}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--brand);
  background:rgba(255,255,255,.03);
  box-shadow:none;
}
.faq-acc .accordion-button:focus{box-shadow:none;border-color:transparent;}
.faq-acc .accordion-button::after{
  content:"+";
  position:absolute;
  right:0;top:50%;
  transform:translateY(-50%) rotate(0deg);
  width:28px;height:28px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  border:1px solid var(--line-2);
  background:none;
  background-image:none !important;
  color:var(--t2);
  font-size:17px;
  font-weight:400;
  transition:transform var(--tr),color var(--tr),border-color var(--tr);
}
.faq-acc .accordion-button:not(.collapsed)::after{
  transform:translateY(-50%) rotate(45deg);
  color:var(--brand);
  border-color:rgba(47,227,196,.55);
}
.faq-acc .accordion-body{
  padding:0 0 24px;
  color:var(--t2);
  font-size:15px;
  max-width:72ch;
  background:rgba(255,255,255,.03);
  padding-left:0;
  padding-right:20px;
}

/* ---------- CTA ---------- */
.cta-wrap{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:40px;
  align-items:start;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:42px;
  box-shadow:var(--sh-1);
}
.cta-copy h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:14px;}
.cta-copy p{color:var(--t2);font-size:15px;}
.contact-list{margin-top:24px;display:flex;flex-direction:column;gap:14px;}
.contact-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:14.5px;
  color:var(--t2);
}
.contact-list i{
  color:var(--brand);
  width:20px;
  margin-top:5px;
  font-size:14px;
}
.form-card{
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px;
}
.field{margin-bottom:16px;}
.field label{
  display:block;
  font-size:13px;
  color:var(--t2);
  margin-bottom:8px;
  letter-spacing:.04em;
}
.field .form-control,
.field .form-select{
  width:100%;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-btn);
  color:var(--t1);
  font-size:15px;
  padding:12px 14px;
  transition:var(--tr);
}
.field .form-control::placeholder{color:var(--t3);}
.field .form-control:focus,
.field .form-select:focus{
  background:rgba(255,255,255,.06);
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(47,227,196,.15);
  color:var(--t1);
  outline:none;
}
.field textarea{resize:vertical;min-height:104px;}
.check-line{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:13px;
  color:var(--t3);
  margin:6px 0 18px;
}
.check-line input{margin-top:5px;accent-color:var(--brand);}
.form-tip{
  margin-top:14px;
  font-size:13px;
  color:var(--brand);
  min-height:20px;
}
.form-tip.is-err{color:var(--danger);}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:66px 0 30px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand p{
  font-size:14px;
  color:var(--t2);
  margin:18px 0 16px;
  max-width:38ch;
}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  margin-bottom:18px;
  letter-spacing:.04em;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{
  font-size:14px;
  color:var(--t2);
  display:inline-block;
  transition:color var(--tr),transform var(--tr);
}
.footer-col a:hover{color:var(--brand);transform:translateX(2px);}
.footer-col .txt{font-size:14px;color:var(--t2);margin:0;}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  align-items:center;
}
.footer-bottom p{font-size:13px;color:var(--t3);margin:0;}
.footer-bottom a{font-size:13px;color:var(--t3);}
.footer-bottom a:hover{color:var(--brand);}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .nav-main{gap:20px;}
  .nav-main a{font-size:14px;}
}
@media (max-width:991px){
  .nav-main{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .header-actions .btn-x{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px;}
  .cta-wrap{grid-template-columns:1fr;padding:32px;}
  .sec{padding:64px 0;}
  .cap-media{grid-template-columns:1fr;gap:24px;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .container-x{padding:0 18px;}
  .brand-text span{display:none;}
  .brand-text strong{font-size:15px;}
  .page-hero{padding:52px 0 50px;}
  .sec{padding:52px 0;}
  .cap-grid{grid-template-columns:1fr;}
  .metric-row{grid-template-columns:repeat(3,1fr);gap:10px;}
  .metric b{font-size:20px;}
  .timeline{padding-left:30px;}
  .tl-dot{left:-30px;width:23px;height:23px;}
  .tl-dot::after{width:7px;height:7px;}
  .notice{padding:22px 20px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .hero-btns .btn-x{flex:1 1 auto;}
}
@media (max-width:575px){
  .page-hero h1{font-size:27px;}
  .sec-head h2{font-size:23px;}
  .scene-grid{grid-template-columns:1fr;}
  .cap-media{padding:20px;}
  .cta-wrap{padding:24px;}
  .form-card{padding:20px;}
  .metric-row{grid-template-columns:1fr 1fr;}
  .metric-row .metric:last-child{grid-column:span 2;}
}

/* roulang page: category3 */
:root{
  --bg-0:#060A12; --bg-1:#0B1320; --bg-2:#111C2B;
  --brand:#2FE3C4; --brand-d:#14B79C; --brand-l:#7BF3DE;
  --accent:#FFB547;
  --t1:#EAF2FF; --t2:#A6B6CB; --t3:#6D7D93;
  --line:rgba(255,255,255,.09);
  --glass:rgba(255,255,255,.05);
  --ok:#3ED598; --warn:#FFB547; --danger:#FF6B6B;
  --r-card:16px; --r-lg:20px; --r-btn:10px;
  --sh-1:0 8px 30px rgba(0,0,0,.35);
  --sh-2:0 18px 48px rgba(0,0,0,.5);
  --glow:0 0 0 1px rgba(47,227,196,.45),0 10px 34px rgba(47,227,196,.28);
  --ease:.25s cubic-bezier(.4,0,.2,1);
  --font:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;padding:0;background:var(--bg-0);color:var(--t1);
  font-family:var(--font);font-size:16px;line-height:1.85;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:64px 64px;
}
.site-header,.page-hero,main,.site-footer{position:relative;z-index:1}
img{max-width:100%;display:block}
a{color:var(--t1);text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease),transform var(--ease)}
a:hover{color:var(--brand-l)}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--t1)}
ul{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid rgba(47,227,196,.6);outline-offset:2px}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.container-x{max-width:1280px}}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.14em;color:var(--brand);text-transform:uppercase;font-family:var(--mono)}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand);display:inline-block}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{font-size:clamp(24px,3vw,34px);margin-bottom:14px}
.section-head p{color:var(--t2);margin:0;font-size:15.5px}
.txt-muted{color:var(--t2)}
.txt-dim{color:var(--t3);font-size:13.5px}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(6,10,18,.72);backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;transition:background var(--ease),border-color var(--ease);
}
.site-header.is-scrolled{background:rgba(9,14,24,.92);border-bottom-color:var(--line)}
.header-inner{height:72px;display:flex;align-items:center;gap:28px;transition:height var(--ease)}
.site-header.is-scrolled .header-inner{height:64px}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--brand),var(--brand-d));color:#04241F;
  font-weight:800;font-size:18px;box-shadow:0 6px 20px rgba(47,227,196,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16.5px;letter-spacing:.01em;color:var(--t1);font-weight:700}
.brand-text span{font-size:10.5px;letter-spacing:.22em;color:var(--t3);font-family:var(--mono)}
.nav-main{display:flex;align-items:center;gap:6px;margin-left:auto;flex-wrap:nowrap}
.nav-main a{
  position:relative;padding:8px 12px;font-size:15px;font-weight:500;color:var(--t2);border-radius:8px;white-space:nowrap;
}
.nav-main a:hover{color:var(--t1);background:rgba(255,255,255,.04)}
.nav-main a.is-active{color:var(--t1)}
.nav-main a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;border-radius:2px;
  background:var(--brand);
}
.header-cta{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:var(--r-btn);font-size:14.5px;font-weight:600;
  border:1px solid rgba(47,227,196,.5);color:var(--brand);background:rgba(47,227,196,.06);
}
.header-cta:hover{background:rgba(47,227,196,.14);color:var(--brand-l);transform:translateY(-1px)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);color:var(--t1);align-items:center;justify-content:center;
}
.offcanvas{
  background:rgba(11,19,32,.98);color:var(--t1);width:320px;border-left:1px solid var(--line);
}
.offcanvas-header{border-bottom:1px solid var(--line);padding:20px 22px}
.offcanvas-title{font-size:16px;margin:0}
.offcanvas .btn-close{filter:invert(1) grayscale(1) brightness(1.6);opacity:.7}
.offcanvas-body{padding:14px 12px}
.offcanvas-body a{
  display:block;padding:14px 16px;font-size:16px;color:var(--t2);border-radius:10px;
}
.offcanvas-body a:hover,.offcanvas-body a.is-active{background:rgba(47,227,196,.08);color:var(--brand-l)}
@media (max-width:991.98px){
  .nav-main,.header-cta{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
}

/* 页头 */
.page-hero{
  position:relative;overflow:hidden;border-bottom:1px solid var(--line);
  background:
    linear-gradient(180deg,rgba(6,10,18,.78),rgba(6,10,18,.96)),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
}
.page-hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,227,196,.4),transparent);
}
.page-hero-inner{padding:80px 0 76px;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.breadcrumb-x{display:flex;flex-wrap:wrap;gap:10px;font-size:13.5px;color:var(--t3);margin-bottom:22px}
.breadcrumb-x a{color:var(--t3)}
.breadcrumb-x a:hover{color:var(--brand)}
.breadcrumb-x span.sep{color:rgba(255,255,255,.2)}
.breadcrumb-x .current{color:var(--t2)}
.page-hero h1{font-size:clamp(30px,4.4vw,50px);line-height:1.2;margin-bottom:20px}
.page-hero h1 em{font-style:normal;color:var(--brand);}
.lede{color:var(--t2);font-size:16.5px;max-width:56ch;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.btn-x{
  display:inline-flex;align-items:center;gap:9px;padding:13px 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all var(--ease);
}
.btn-solid{background:var(--brand);color:#04241F;box-shadow:var(--glow)}
.btn-solid:hover{background:var(--brand-l);color:#04241F;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(47,227,196,.6),0 16px 40px rgba(47,227,196,.35)}
.btn-glass{background:var(--glass);border-color:rgba(255,255,255,.14);color:var(--t1);backdrop-filter:blur(16px)}
.btn-glass:hover{border-color:rgba(47,227,196,.5);color:var(--brand-l);transform:translateY(-2px)}
.hero-visual{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-2)}
.hero-visual img{width:100%;aspect-ratio:16/11;object-fit:cover}
.hero-visual .veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,18,.2),rgba(6,10,18,.82))}
.hero-visual .tag-float{
  position:absolute;left:18px;bottom:18px;display:inline-flex;align-items:center;gap:9px;
  padding:9px 15px;border-radius:999px;font-size:13px;color:var(--t1);
  background:rgba(6,10,18,.7);border:1px solid var(--line);backdrop-filter:blur(10px);
}
.hero-visual .tag-float i{color:var(--brand)}
@media (max-width:991.98px){
  .page-hero-inner{grid-template-columns:1fr;gap:34px;padding:58px 0 56px}
  .hero-visual img{aspect-ratio:16/9}
}
@media (max-width:575.98px){
  .page-hero-inner{padding:44px 0 44px}
  .btn-x{padding:12px 20px;font-size:14.5px}
}

/* 数据卡 */
.stats-band{background:var(--bg-1);border-bottom:1px solid var(--line);position:relative}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-card{
  position:relative;padding:30px 24px 26px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(16px);
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.stat-card::before{
  content:"";position:absolute;left:18px;right:18px;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,227,196,.55),transparent);
}
.stat-card:hover{transform:translateY(-4px);border-color:rgba(47,227,196,.35);box-shadow:var(--sh-2)}
.stat-num{
  font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:clamp(32px,3.6vw,44px);
  font-weight:700;line-height:1.1;letter-spacing:-.01em;
  background:linear-gradient(120deg,var(--brand),var(--brand-l));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-num span{font-size:.5em;margin-left:4px;-webkit-text-fill-color:var(--t2);color:var(--t2)}
.stat-label{margin-top:10px;font-size:13px;color:var(--t3);letter-spacing:.04em}
@media (max-width:767.98px){.stats-grid{grid-template-columns:repeat(2,1fr);gap:14px}}

/* 表格 */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  background:rgba(255,255,255,.03);backdrop-filter:blur(16px);
}
.table-scroll{overflow-x:auto}
table.vtable{width:100%;border-collapse:collapse;min-width:820px}
table.vtable thead th{
  background:rgba(47,227,196,.08);color:var(--brand-l);font-size:13.5px;font-weight:600;
  text-align:left;padding:16px 20px;border-bottom:1px solid var(--line);white-space:nowrap;letter-spacing:.03em;
}
table.vtable tbody td{
  padding:17px 20px;border-bottom:1px solid rgba(255,255,255,.06);font-size:14.5px;color:var(--t2);vertical-align:top;
}
table.vtable tbody tr:nth-child(even){background:rgba(255,255,255,.03)}
table.vtable tbody tr:last-child td{border-bottom:none}
table.vtable tbody tr:hover{background:rgba(47,227,196,.06)}
table.vtable td.ver{font-family:var(--mono);color:var(--t1);font-weight:600;white-space:nowrap}
table.vtable td.date{font-family:var(--mono);color:var(--t3);white-space:nowrap;font-variant-numeric:tabular-nums}
.pill{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
  font-size:12px;line-height:1.7;white-space:nowrap;
}
.pill-brand{background:rgba(47,227,196,.12);color:var(--brand)}
.pill-accent{background:rgba(255,181,71,.12);color:var(--accent)}
.pill-ok{background:rgba(62,213,152,.12);color:var(--ok)}
@media (max-width:575.98px){
  table.vtable thead th,table.vtable tbody td{padding:13px 14px;font-size:13.5px}
}

/* 玻璃三列 */
.glass-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.glass-card{
  padding:30px 26px;border-radius:var(--r-card);background:var(--glass);
  border:1px solid var(--line);backdrop-filter:blur(16px);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.glass-card:hover{transform:translateY(-4px);border-color:rgba(47,227,196,.35);box-shadow:var(--sh-2)}
.glass-card .ic{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;margin-bottom:18px;
  background:rgba(47,227,196,.1);color:var(--brand);font-size:18px;border:1px solid rgba(47,227,196,.22);
}
.glass-card h3{font-size:19px;margin-bottom:12px}
.glass-card p{color:var(--t2);font-size:14.8px;margin:0 0 14px}
.mini-list li{position:relative;padding-left:18px;font-size:14px;color:var(--t3);margin-bottom:8px}
.mini-list li::before{content:"";position:absolute;left:0;top:12px;width:6px;height:1px;background:var(--brand)}
@media (max-width:991.98px){.glass-grid{grid-template-columns:1fr;gap:16px}}

/* 图文 + 列表 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split .visual{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1)}
.split .visual img{width:100%;aspect-ratio:16/10;object-fit:cover}
.split h2{font-size:clamp(24px,3vw,34px);margin-bottom:16px}
.split p{color:var(--t2)}
.step-list{counter-reset:step;margin-top:22px}
.step-list li{
  position:relative;padding:0 0 18px 46px;color:var(--t2);font-size:15px;
}
.step-list li::before{
  counter-increment:step;content:"0" counter(step);
  position:absolute;left:0;top:1px;font-family:var(--mono);font-size:13px;font-weight:700;
  color:var(--accent);width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
  background:rgba(255,181,71,.1);border:1px solid rgba(255,181,71,.28);
}
.step-list li::after{
  content:"";position:absolute;left:15px;top:36px;bottom:2px;width:1px;
  background:linear-gradient(180deg,rgba(47,227,196,.45),rgba(47,227,196,0));
}
.step-list li:last-child{padding-bottom:0}
.step-list li:last-child::after{display:none}
@media (max-width:991.98px){.split{grid-template-columns:1fr;gap:30px}}

/* FAQ */
.faq .accordion-item{
  background:transparent;border:none;border-bottom:1px solid var(--line);border-radius:0;
}
.faq .accordion-button{
  background:transparent;color:var(--t1);font-size:16.5px;font-weight:600;
  padding:22px 44px 22px 0;box-shadow:none;border-radius:0;
}
.faq .accordion-button::after{display:none}
.faq .accordion-button:not(.collapsed){color:var(--brand)}
.faq .accordion-button:hover{color:var(--brand-l)}
.faq .accordion-button:focus{box-shadow:none;outline:none}
.faq .accordion-item .mark{
  position:absolute;right:2px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;font-size:12px;color:var(--t2);
  transition:transform var(--ease),color var(--ease),border-color var(--ease);
}
.faq .accordion-button:not(.collapsed) .mark{transform:translateY(-50%) rotate(45deg);color:var(--brand);border-color:rgba(47,227,196,.45)}
.faq .accordion-body{padding:0 0 24px;color:var(--t2);font-size:15.4px;max-width:72ch;background:transparent}
.faq-item-wrap{position:relative}

/* CTA 表单 */
.cta-section{background:linear-gradient(180deg,var(--bg-0),var(--bg-1));border-top:1px solid var(--line)}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.cta-grid h2{font-size:clamp(24px,3vw,34px);margin-bottom:16px}
.contact-list{margin-top:26px}
.contact-list li{display:flex;gap:14px;align-items:flex-start;margin-bottom:16px;color:var(--t2);font-size:15px}
.contact-list i{color:var(--brand);width:20px;margin-top:5px}
.form-card{
  padding:32px;border-radius:var(--r-lg);background:var(--glass);
  border:1px solid var(--line);backdrop-filter:blur(16px);box-shadow:var(--sh-1);
}
.form-card label{display:block;font-size:13.5px;color:var(--t2);margin-bottom:8px}
.form-field{margin-bottom:18px}
.form-control,.form-select{
  width:100%;padding:12px 14px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.12);
  color:var(--t1);font-size:14.8px;transition:all var(--ease);
}
.form-control::placeholder{color:var(--t3)}
.form-control:focus,.form-select:focus{
  background:rgba(255,255,255,.06);border-color:var(--brand);color:var(--t1);
  box-shadow:0 0 0 3px rgba(47,227,196,.15);outline:none;
}
.form-select option{background:var(--bg-2);color:var(--t1)}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--t3);margin-bottom:20px}
.check-row input{margin-top:5px;accent-color:var(--brand);width:16px;height:16px}
.form-tip{font-size:13.5px;margin-top:14px;display:none}
.form-tip.is-ok{display:block;color:var(--ok)}
.form-tip.is-error{display:block;color:var(--danger)}
@media (max-width:991.98px){.cta-grid{grid-template-columns:1fr;gap:32px}.form-card{padding:24px}}

/* 相关内容 */
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.related-card{
  display:block;padding:22px 20px;border-radius:var(--r-card);
  background:rgba(255,255,255,.04);border:1px solid var(--line);transition:all var(--ease);
}
.related-card:hover{transform:translateY(-4px);border-color:rgba(47,227,196,.35);box-shadow:var(--sh-2);color:var(--t1)}
.related-card strong{display:block;font-size:16px;margin-bottom:8px}
.related-card span{font-size:13.5px;color:var(--t3)}
.related-card i{color:var(--brand);font-size:13px;margin-left:6px;transition:transform var(--ease)}
.related-card:hover i{transform:translateX(3px)}
@media (max-width:991.98px){.related-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:575.98px){.related-grid{grid-template-columns:1fr}}

/* 页脚 */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1.1fr;gap:44px;padding:72px 0 52px;
}
.footer-brand p{color:var(--t2);font-size:14.5px;margin:18px 0 16px;max-width:38ch}
.link-more{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-size:14.5px;font-weight:600}
.link-more i{transition:transform var(--ease)}
.link-more:hover i{transform:translateX(4px)}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--t1)}
.footer-col ul li{margin-bottom:11px}
.footer-col a{color:var(--t2);font-size:14.5px;display:inline-block}
.footer-col a:hover{color:var(--brand);transform:translateX(2px)}
.footer-col .txt{color:var(--t3);font-size:13.8px;margin:0}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0 34px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
}
.footer-bottom p{margin:0;font-size:13px;color:var(--t3)}
.footer-bottom a{color:var(--t3)}
.footer-bottom a:hover{color:var(--brand)}
@media (max-width:991.98px){.footer-grid{grid-template-columns:1fr 1fr;gap:34px;padding:56px 0 40px}}
@media (max-width:575.98px){.footer-grid{grid-template-columns:1fr}}
@media (max-width:575.98px){
  .container-x{padding:0 18px}
  .section,.section--tight{padding:52px 0}
  .section-head{margin-bottom:30px}
  body{font-size:15.5px}
}

/* roulang page: category4 */
:root{
  --bg-0:#060A12;
  --bg-1:#0B1320;
  --bg-2:#111C2B;
  --brand:#2FE3C4;
  --brand-d:#14B79C;
  --brand-l:#7BF3DE;
  --accent:#FFB547;
  --t1:#EAF2FF;
  --t2:#A6B6CB;
  --t3:#6D7D93;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --glass:rgba(255,255,255,.05);
  --r-card:16px;
  --r-lg:20px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 8px 30px rgba(0,0,0,.35);
  --sh-2:0 18px 48px rgba(0,0,0,.5);
  --sh-brand:0 0 0 1px rgba(47,227,196,.45), 0 10px 34px rgba(47,227,196,.28);
  --ease:.25s cubic-bezier(.4,0,.2,1);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:110px;}
body{
  margin:0;
  background-color:var(--bg-0);
  color:var(--t1);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 72%);
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 72%);
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:var(--ease);}
a:hover{color:var(--brand-l);}
p{margin:0 0 1em;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--t1);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid rgba(47,227,196,.6);outline-offset:2px;}

.container-x{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1400px){.container-x{max-width:1280px;}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(6,10,18,.74);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:var(--ease);
}
.site-header.is-scrolled{
  background:rgba(6,10,18,.94);
  border-bottom-color:var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:72px;
  transition:var(--ease);
}
.site-header.is-scrolled .header-inner{height:64px;}
.brand{display:flex;align-items:center;gap:12px;color:var(--t1);text-decoration:none;flex-shrink:0;}
.brand:hover{color:var(--t1);}
.brand-mark{
  width:38px;height:38px;flex-shrink:0;
  border-radius:12px;
  display:grid;place-items:center;
  font-size:18px;font-weight:700;
  color:#04241F;
  background:linear-gradient(135deg,var(--brand-l),var(--brand-d));
  box-shadow:0 6px 20px rgba(47,227,196,.25);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16px;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
.brand-text span{
  font-size:10px;letter-spacing:.22em;color:var(--t3);
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
}
.nav-main{display:flex;align-items:center;gap:26px;margin-left:auto;}
.nav-main a{
  position:relative;
  font-size:15px;font-weight:500;color:var(--t2);
  padding:6px 0;white-space:nowrap;text-decoration:none;
  transition:var(--ease);
}
.nav-main a:hover{color:var(--t1);}
.nav-main a.is-active{color:var(--t1);}
.nav-main a.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  border-radius:2px;background:var(--brand);
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.btn-ghost-sm{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;
  color:var(--brand);
  border:1px solid rgba(47,227,196,.45);
  background:rgba(47,227,196,.06);
  border-radius:var(--r-pill);
  padding:9px 18px;
  text-decoration:none;
  transition:var(--ease);
}
.btn-ghost-sm:hover{
  color:#04241F;background:var(--brand);
  border-color:var(--brand);transform:translateY(-2px);
}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--t1);
  cursor:pointer;
  align-items:center;justify-content:center;
  transition:var(--ease);
}
.nav-toggle:hover{border-color:rgba(47,227,196,.4);color:var(--brand);}

.nav-drawer{
  width:320px!important;
  background:rgba(11,19,32,.97)!important;
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-left:1px solid var(--line);
  color:var(--t1);
}
.nav-drawer .offcanvas-header{
  padding:20px 22px;
  border-bottom:1px solid var(--line);
}
.nav-drawer .offcanvas-title{font-size:15px;font-weight:700;color:var(--t1);}
.nav-drawer .btn-close{filter:invert(1) grayscale(1);opacity:.6;}
.drawer-nav{display:flex;flex-direction:column;padding:14px 12px;}
.drawer-nav a{
  display:flex;align-items:center;
  min-height:48px;padding:0 14px;
  border-radius:12px;
  font-size:15px;color:var(--t2);
  text-decoration:none;
  transition:var(--ease);
}
.drawer-nav a:hover{background:rgba(255,255,255,.05);color:var(--t1);}
.drawer-nav a.is-active{color:var(--brand);background:rgba(47,227,196,.09);}

/* ---------- Page head ---------- */
.page-head{
  position:relative;
  padding:56px 0 72px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-head-bg{
  position:absolute;inset:0;
  background-size:cover;
  background-position:center;
  opacity:.9;
}
.page-head .container-x{position:relative;z-index:1;}
.crumb{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--t3);margin-bottom:26px;}
.crumb a{color:var(--t3);text-decoration:none;}
.crumb a:hover{color:var(--brand);}
.crumb .current{color:var(--t2);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;
  color:var(--brand);
  background:rgba(47,227,196,.1);
  border:1px solid rgba(47,227,196,.28);
  border-radius:var(--r-pill);
  padding:6px 14px;
  margin-bottom:22px;
}
.page-head h1{
  font-size:clamp(30px,4.4vw,48px);
  line-height:1.2;
  letter-spacing:.005em;
}
.lead-txt{
  margin:22px 0 0;
  font-size:17px;
  line-height:1.9;
  color:var(--t2);
  max-width:64ch;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.btn-brand{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 26px;
  font-size:15px;font-weight:700;
  color:#04241F;
  background:var(--brand);
  border:1px solid var(--brand);
  border-radius:var(--r-btn);
  box-shadow:var(--sh-brand);
  text-decoration:none;
  transition:var(--ease);
}
.btn-brand:hover{
  color:#04241F;
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(47,227,196,.6),0 16px 44px rgba(47,227,196,.42);
}
.btn-line{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 24px;
  font-size:15px;font-weight:600;
  color:var(--t1);
  background:var(--glass);
  border:1px solid var(--line-strong);
  border-radius:var(--r-btn);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  text-decoration:none;
  transition:var(--ease);
}
.btn-line:hover{
  color:var(--brand);
  border-color:rgba(47,227,196,.55);
  transform:translateY(-2px);
}
.head-figure{margin:0;}
.head-figure img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
}

/* ---------- Sections ---------- */
.section{padding:88px 0;position:relative;}
.section-tight{padding-top:72px;}
.section-head{margin-bottom:46px;max-width:760px;}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:12px;letter-spacing:.2em;
  color:var(--brand);
  margin-bottom:14px;
}
.section-head h2{
  font-size:clamp(24px,3vw,34px);
  margin-bottom:14px;
}
.section-head p{color:var(--t2);margin:0;font-size:15.5px;}

/* ---------- Check strip ---------- */
.check-card{
  position:relative;
  height:100%;
  padding:28px 24px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--glass);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  overflow:hidden;
  transition:var(--ease);
}
.check-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,227,196,.65),transparent);
}
.check-card:hover{
  transform:translateY(-4px);
  border-color:rgba(47,227,196,.35);
  box-shadow:var(--sh-2);
}
.check-num{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:12px;letter-spacing:.2em;color:var(--accent);
}
.check-card h3{font-size:17.5px;font-weight:600;margin:12px 0 10px;}
.check-card p{margin:0;color:var(--t2);font-size:14.5px;line-height:1.8;}

/* ---------- Anchor nav ---------- */
.anchor-nav{
  position:sticky;
  top:104px;
  padding:18px 16px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:rgba(255,255,255,.03);
}
.anchor-title{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:11.5px;letter-spacing:.2em;color:var(--t3);
  margin:0 0 12px;
  padding-left:12px;
}
.anchor-nav a{
  display:block;
  padding:9px 12px;
  font-size:14.5px;
  color:var(--t2);
  border-left:2px solid transparent;
  border-radius:10px;
  text-decoration:none;
  transition:var(--ease);
}
.anchor-nav a:hover{color:var(--t1);background:rgba(255,255,255,.05);}
.anchor-nav a.is-current{
  color:var(--brand);
  background:rgba(47,227,196,.08);
  border-left-color:var(--brand);
}

/* ---------- Group blocks ---------- */
.group-block{
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:rgba(255,255,255,.026);
  padding:28px 28px 30px;
  transition:var(--ease);
}
.group-block + .group-block{margin-top:24px;}
.group-block:hover{border-color:rgba(47,227,196,.22);}
.group-title{
  display:flex;align-items:center;gap:14px;
  font-size:clamp(20px,2.3vw,25px);
  margin:0 0 20px;
}
.group-title .num{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:13px;
  color:var(--accent);
  background:rgba(255,181,71,.1);
  border:1px solid rgba(255,181,71,.32);
  border-radius:var(--r-pill);
  padding:3px 12px;
  flex-shrink:0;
}
.item-list{list-style:none;margin:0;padding:0;counter-reset:item;}
.item-list li{
  position:relative;
  counter-increment:item;
  padding:18px 22px 18px 58px;
  border:1px solid var(--line);
  border-radius:14px;
  background:rgba(255,255,255,.028);
  transition:var(--ease);
}
.item-list li + li{margin-top:12px;}
.item-list li::before{
  content:counter(item,decimal-leading-zero);
  position:absolute;left:22px;top:18px;
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:14px;color:var(--brand);opacity:.9;
}
.item-list li:hover{
  border-color:rgba(47,227,196,.32);
  background:rgba(255,255,255,.045);
  transform:translateX(2px);
}
.item-t{margin:0 0 6px;font-size:15.5px;font-weight:600;color:var(--t1);}
.item-d{margin:0;font-size:14.5px;line-height:1.8;color:var(--t2);}

/* ---------- FAQ ---------- */
.faq-accordion{border-top:1px solid var(--line);}
.faq-accordion .accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
  border-radius:0;
}
.faq-accordion .accordion-button{
  display:flex;
  align-items:center;
  width:100%;
  padding:24px 6px 24px 0;
  font-size:16.5px;
  font-weight:600;
  color:var(--t1);
  background:transparent;
  border:0;
  border-radius:0;
  box-shadow:none;
  text-align:left;
  transition:var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--brand);
  background:transparent;
  box-shadow:none;
}
.faq-accordion .accordion-button:focus{box-shadow:none;border-color:transparent;}
.faq-accordion .accordion-button::after{
  content:"+";
  margin-left:auto;
  width:32px;height:32px;
  flex-shrink:0;
  display:grid;place-items:center;
  background-image:none;
  font-size:18px;
  font-weight:400;
  line-height:1;
  color:var(--t2);
  border:1px solid var(--line-strong);
  border-radius:50%;
  transition:var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed)::after{
  transform:rotate(45deg);
  color:var(--brand);
  border-color:rgba(47,227,196,.5);
  background:rgba(47,227,196,.1);
}
.faq-accordion .accordion-body{
  max-width:76ch;
  margin:0 0 22px;
  padding:20px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--t2);
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  border-radius:12px;
}

/* ---------- CTA ---------- */
.cta-section{
  padding:88px 0;
  background:var(--bg-1);
  border-top:1px solid var(--line);
  position:relative;
}
.cta-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:start;
}
.cta-info h2{font-size:clamp(24px,3vw,32px);margin-bottom:16px;}
.cta-info > p{color:var(--t2);font-size:15.5px;max-width:52ch;}
.contact-list{list-style:none;margin:28px 0 0;padding:0;}
.contact-list li{
  display:flex;align-items:flex-start;gap:12px;
  font-size:14.5px;color:var(--t2);
  padding:14px 0;
  border-top:1px solid var(--line);
}
.contact-list li i{color:var(--brand);margin-top:4px;width:18px;text-align:center;}
.form-card{
  padding:30px;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--glass);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  box-shadow:var(--sh-1);
}
.form-card h3{font-size:18px;margin-bottom:20px;}
.form-label{
  display:block;
  font-size:14px;
  color:var(--t2);
  margin-bottom:8px;
}
.form-control,.form-select{
  width:100%;
  padding:12px 14px;
  font-size:15px;
  color:var(--t1);
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.12);
  border-radius:10px;
  transition:var(--ease);
}
.form-control::placeholder{color:var(--t3);}
.form-control:focus,.form-select:focus{
  color:var(--t1);
  background:rgba(255,255,255,.06);
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(47,227,196,.15);
  outline:none;
}
.form-select option{background:#0B1320;color:#EAF2FF;}
.form-check-input{
  width:18px;height:18px;
  margin-top:3px;
  background-color:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.2);
  border-radius:5px;
}
.form-check-input:checked{background-color:var(--brand);border-color:var(--brand);}
.form-check-input:focus{box-shadow:0 0 0 3px rgba(47,227,196,.18);border-color:var(--brand);}
.form-check-label{font-size:13.8px;color:var(--t2);}
.btn-submit{
  width:100%;
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;
  font-size:15px;font-weight:700;
  color:#04241F;
  background:var(--brand);
  border:1px solid var(--brand);
  border-radius:var(--r-btn);
  box-shadow:var(--sh-brand);
  cursor:pointer;
  transition:var(--ease);
}
.btn-submit:hover{
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(47,227,196,.6),0 16px 44px rgba(47,227,196,.42);
}
.form-tip{
  display:none;
  margin:14px 0 0;
  font-size:14px;
  color:var(--brand);
}
.form-tip.is-on{display:block;}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:72px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{
  color:var(--t2);
  font-size:14.5px;
  line-height:1.85;
  max-width:40ch;
  margin:0 0 18px;
}
.link-more{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14.5px;font-weight:600;color:var(--brand);
  text-decoration:none;
  transition:var(--ease);
}
.link-more:hover{color:var(--brand-l);gap:12px;}
.footer-col h4{font-size:14px;font-weight:600;margin:0 0 18px;color:var(--t1);}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li + li{margin-top:11px;}
.footer-col a{
  display:inline-block;
  font-size:14.5px;color:var(--t2);
  text-decoration:none;
  transition:var(--ease);
}
.footer-col a:hover{color:var(--brand);transform:translateX(2px);}
.footer-col .txt{margin:0;font-size:14.5px;color:var(--t2);line-height:1.7;}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  justify-content:space-between;
  align-items:center;
}
.footer-bottom p{margin:0;font-size:13px;color:var(--t3);}
.footer-bottom a{color:var(--t3);text-decoration:none;}
.footer-bottom a:hover{color:var(--brand);}

/* ---------- Responsive ---------- */
@media (max-width:1199.98px){
  .nav-main{gap:20px;}
  .nav-main a{font-size:14.5px;}
  .brand-text strong{font-size:15px;}
}
@media (max-width:991.98px){
  .nav-main,.btn-ghost-sm{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions{margin-left:auto;}
  .section{padding:64px 0;}
  .cta-section{padding:64px 0;}
  .cta-grid{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .anchor-nav{
    position:static;
    display:flex;
    gap:10px;
    overflow-x:auto;
    padding:12px;
    scrollbar-width:none;
  }
  .anchor-nav::-webkit-scrollbar{display:none;}
  .anchor-title{display:none;}
  .anchor-nav a{
    white-space:nowrap;
    padding:8px 16px;
    border:1px solid var(--line);
    border-left:1px solid var(--line);
    border-radius:var(--r-pill);
  }
  .anchor-nav a.is-current{border-color:rgba(47,227,196,.5);}
}
@media (max-width:767.98px){
  .page-head{padding:40px 0 56px;}
  .lead-txt{font-size:16px;}
  .section{padding:52px 0;}
  .section-head{margin-bottom:34px;}
  .group-block{padding:22px 18px 24px;}
  .item-list li{padding:16px 18px 16px 52px;}
  .item-list li::before{left:18px;top:16px;}
  .footer-grid{grid-template-columns:1fr;}
  .form-card{padding:22px;}
  .faq-accordion .accordion-button{font-size:15.5px;}
}
@media (max-width:575.98px){
  .container-x{padding:0 18px;}
  .header-inner{height:64px;}
  .brand-text span{display:none;}
  .brand-mark{width:34px;height:34px;font-size:16px;}
  .brand-text strong{font-size:14.5px;}
  .hero-actions .btn-brand,
  .hero-actions .btn-line{width:100%;justify-content:center;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}