/* roulang page: index */
:root{
  --brand:#0E6BA8;
  --brand-hover:#0B5788;
  --brand-active:#094A73;
  --brand-soft:#E7F1F9;
  --brand-line:#BBD8EC;
  --accent:#F27A1A;
  --gold:#F5B942;
  --green:#178F6B;
  --danger:#D9534F;
  --ink:#10161F;
  --ink-2:#4A5666;
  --ink-3:#7C8899;
  --border:#E2E9F1;
  --divider:#EEF3F8;
  --bg:#F5F8FB;
  --card:#FFFFFF;
  --panel:#0B2A44;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:20px;
  --r-xl:24px;
  --sh1:0 2px 8px rgba(16,32,56,.05);
  --sh2:0 10px 30px rgba(16,32,56,.07);
  --sh3:0 18px 44px rgba(16,32,56,.10);
  --bs-primary:#0E6BA8;
  --bs-primary-rgb:14,107,168;
  --bs-body-color:#10161F;
  --bs-body-bg:#F5F8FB;
  --bs-border-color:#E2E9F1;
  --bs-border-radius:12px;
  --bs-link-color:#0E6BA8;
  --bs-link-hover-color:#0B5788;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.35;color:var(--ink)}
h1{font-size:clamp(32px,4vw,52px);line-height:1.25;font-weight:700}
h2{font-size:clamp(26px,2.6vw,34px);line-height:1.35}
h3{font-size:21px;line-height:1.5;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
a:hover{color:var(--brand-hover)}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;padding-right:20px;padding-left:20px;margin-right:auto;margin-left:auto;max-width:1320px}
@media (max-width:1399px){.container{max-width:1140px}}
@media (max-width:1199px){.container{max-width:960px}}
@media (max-width:991px){.container{max-width:720px}}
@media (max-width:767px){.container{max-width:100%;padding-right:18px;padding-left:18px}}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(245,248,251,.92);backdrop-filter:blur(8px);padding:14px 0 10px}
.nav-card{
  display:flex;align-items:center;gap:20px;
  min-height:72px;padding:12px 22px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-md);
  box-shadow:var(--sh2);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:var(--r-sm);
  background:var(--brand);display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:17px;box-shadow:var(--sh1);
}
.brand-name{font-size:19px;font-weight:700;color:var(--brand);letter-spacing:0}
.nav-links{display:flex;align-items:center;gap:10px;flex:1 1 auto;flex-wrap:wrap}
.nav-chip{
  display:inline-flex;align-items:center;gap:8px;
  height:42px;padding:0 14px;border-radius:var(--r-sm);
  background:#EDF3F9;color:var(--ink-2);
  font-size:14.5px;font-weight:600;white-space:nowrap;
  transition:all .2s ease;
}
.nav-chip i{font-size:15px;color:var(--ink-3);transition:color .2s ease}
.nav-chip:hover{background:#fff;border:1px solid var(--brand-line);color:var(--brand);box-shadow:var(--sh1)}
.nav-chip:hover i,.nav-chip:focus-visible i{color:var(--brand)}
.nav-chip.is-active{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(14,107,168,.22)}
.nav-chip.is-active i{color:#fff}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 18px;border-radius:var(--r-sm);
  background:#fff;border:1px solid var(--border);color:var(--brand);
  font-size:15px;font-weight:600;transition:all .2s ease;
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);box-shadow:var(--sh1);transform:translateY(-1px)}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-sm);
  background:var(--brand);color:#fff;font-size:15.5px;font-weight:600;
  box-shadow:var(--sh1);transition:all .2s ease;
}
.btn-brand:hover{background:var(--brand-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--sh2)}
.btn-brand:active{background:var(--brand-active);transform:translateY(0)}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-sm);
  background:var(--accent);color:#fff;font-size:16px;font-weight:700;
  box-shadow:var(--sh1);transition:all .2s ease;
}
.btn-accent:hover{background:#DE6B12;color:#fff;transform:translateY(-2px);box-shadow:var(--sh2)}
.btn-accent:active{transform:translateY(0)}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-sm);
  background:transparent;border:1px solid rgba(255,255,255,.4);color:#fff;
  font-size:15.5px;font-weight:600;transition:all .2s ease;
}
.btn-line:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand)}
.btn-text:hover{text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);
  background:var(--brand-soft);color:var(--brand);font-size:18px;
  align-items:center;justify-content:center;margin-left:auto;
}
.drawer{background:var(--panel);color:#fff;width:min(340px,86vw)}
.drawer .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.12);padding:18px 20px}
.drawer-title{font-size:17px;font-weight:700;color:#fff}
.drawer-close{width:40px;height:40px;border-radius:var(--r-sm);color:#fff;background:rgba(255,255,255,.12);display:flex;align-items:center;justify-content:center}
.drawer .offcanvas-body{padding:18px 20px 28px;display:flex;flex-direction:column;gap:12px}
.drawer-link{
  display:flex;align-items:center;min-height:48px;padding:0 16px;border-radius:12px;
  background:rgba(255,255,255,.07);color:#E7EFF7;font-size:15.5px;font-weight:600;
}
.drawer-link:hover{background:rgba(255,255,255,.14);color:#fff}
.drawer-link.is-active{background:var(--brand);color:#fff}
.drawer-cta{margin-top:8px;width:100%}

/* ---------- sections ---------- */
.section{padding:88px 0}
.section-tight{padding:68px 0}
.section-white{background:#fff}
.sec-head{margin-bottom:36px}
.sec-head h2{margin-bottom:12px}
.sec-head p{color:var(--ink-2);max-width:760px}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;background:var(--brand-soft);color:var(--brand);
  font-size:13px;font-weight:700;margin-bottom:16px;
}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;background:var(--brand-soft);color:var(--brand);
  font-size:13px;font-weight:600;
}
.pill-sm{font-size:12.5px;padding:3px 10px}

/* ---------- hero ---------- */
.hero{padding:52px 0 72px}
.hero-grid{display:grid;grid-template-columns:55fr 45fr;gap:48px;align-items:center}
.hero h1{margin-bottom:18px}
.hero-sub{font-size:17.5px;color:var(--ink-2);margin-bottom:28px;max-width:520px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:30px}
.trust-row{display:flex;gap:26px;flex-wrap:wrap;border-top:1px solid var(--divider);padding-top:22px}
.trust-item{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-2)}
.trust-item i{color:var(--green);font-size:14px}
.hero-media{position:relative}
.hero-media img{width:100%;height:420px;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh3);outline:1px solid rgba(16,32,56,.06);outline-offset:-1px}
.hero-stat{
  position:absolute;right:-8px;bottom:26px;
  background:#fff;border-radius:12px;padding:14px 18px;box-shadow:var(--sh2);
  border:1px solid var(--border);
}
.hero-stat .stat-num{font-size:26px;font-weight:700;color:var(--brand);line-height:1.1}
.hero-stat .stat-label{font-size:13px;color:var(--ink-3)}

/* ---------- compare ---------- */
.compare-desktop{overflow:hidden;border-radius:var(--r-md);box-shadow:var(--sh2);background:#fff;border:1px solid var(--border)}
.compare-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr)}
.compare-grid>div{padding:18px 20px;border-bottom:1px solid var(--divider);font-size:15px;color:var(--ink-2);display:flex;align-items:center}
.compare-grid>div:nth-child(4n+1){font-weight:600;color:var(--ink);background:#FBFDFF}
.compare-grid>div:nth-child(4n+3){background:#F2F8FD}
.compare-head>div{background:var(--panel);color:#fff;font-weight:700;font-size:15.5px;border-bottom:0;padding-top:20px;padding-bottom:20px}
.compare-head>div:nth-child(4n+1){background:var(--panel);color:#fff}
.compare-head>div:nth-child(4n+3){background:#0F3A5C;color:#fff;position:relative}
.compare-head .rec-badge{
  position:absolute;top:-1px;right:14px;
  background:var(--accent);color:#fff;font-size:12px;font-weight:700;
  padding:3px 10px;border-radius:0 0 8px 8px;
}
.compare-grid>div .yes{color:var(--green);font-weight:700;margin-right:6px}
.compare-grid>div .no{color:var(--ink-3);margin-right:6px}
.compare-grid>div:last-child,.compare-grid>div:nth-last-child(2),.compare-grid>div:nth-last-child(3),.compare-grid>div:nth-last-child(4){border-bottom:0}
.compare-mobile{display:none}

/* ---------- tiers ---------- */
.tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;align-items:stretch}
.tier-card{
  background:#fff;border:1px solid var(--border);border-radius:18px;padding:28px 26px;
  box-shadow:var(--sh2);display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease;
}
.tier-card:hover{transform:translateY(-4px);box-shadow:var(--sh3)}
.tier-card.is-featured{border:2px solid var(--brand);box-shadow:var(--sh3);transform:scale(1.05)}
.tier-card.is-featured:hover{transform:scale(1.05) translateY(-4px)}
.tier-badge{
  display:inline-flex;align-items:center;gap:6px;align-self:flex-start;
  padding:5px 14px;border-radius:999px;font-size:13px;font-weight:700;color:#fff;margin-bottom:16px;
}
.tier-badge.basic{background:var(--ink-3)}
.tier-badge.pro{background:var(--brand)}
.tier-badge.top{background:linear-gradient(90deg,#F27A1A,#F5B942)}
.tier-card h3{margin-bottom:8px}
.tier-desc{font-size:14.5px;color:var(--ink-2);margin-bottom:20px}
.tier-points{display:flex;flex-direction:column;gap:12px;margin-bottom:26px}
.tier-points li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);line-height:1.6}
.tier-points i{color:var(--green);font-size:15px;margin-top:5px}
.tier-price{margin-top:auto;padding-top:20px;border-top:1px solid var(--divider)}
.tier-price .amount{font-size:34px;font-weight:700;color:var(--ink);line-height:1.1}
.tier-price .unit{font-size:14.5px;color:var(--ink-3);margin-left:6px}
.tier-price .note{font-size:13px;color:var(--ink-3);margin-top:6px}
.tier-card .btn-brand,.tier-card .btn-accent,.tier-card .btn-ghost{width:100%;margin-top:18px}

/* ---------- exclusive preview ---------- */
.preview-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.preview-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh2);display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.preview-card:hover{transform:translateY(-4px);box-shadow:var(--sh3)}
.preview-media{position:relative;height:190px}
.preview-media img{width:100%;height:100%;object-fit:cover;outline:1px solid rgba(16,32,56,.06);outline-offset:-1px}
.preview-media .pill{position:absolute;top:14px;left:14px;background:rgba(255,255,255,.94);color:var(--brand)}
.preview-card.is-locked .preview-media img{opacity:.62}
.lock-tag{
  position:absolute;top:14px;right:14px;display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;background:rgba(11,42,68,.86);color:#fff;font-size:12.5px;font-weight:600;
}
.lock-icon{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:52px;height:52px;border-radius:50%;background:rgba(255,255,255,.9);
  display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:19px;
}
.preview-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.preview-body h3{font-size:18.5px;line-height:1.5}
.preview-body p{font-size:14.5px;color:var(--ink-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.preview-meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3);margin-top:auto;padding-top:14px;border-top:1px solid var(--divider)}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:26px}
.news-lead{
  display:block;background:#fff;border:1px solid var(--border);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh2);transition:transform .2s ease,box-shadow .2s ease;
}
.news-lead:hover{transform:translateY(-4px);box-shadow:var(--sh3)}
.news-lead-media{height:270px}
.news-lead-media img{width:100%;height:100%;object-fit:cover}
.news-lead-body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:12px}
.news-lead-body h3{font-size:22px;color:var(--ink);line-height:1.45}
.news-lead:hover h3{color:var(--brand)}
.news-lead-body p{font-size:15px;color:var(--ink-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-list{display:flex;flex-direction:column;gap:14px}
.news-item{background:#fff;border:1px solid var(--border);border-radius:var(--r-md);box-shadow:var(--sh1);transition:transform .2s ease,box-shadow .2s ease}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--sh2)}
.news-item a{display:block;padding:18px 22px}
.news-item h3{font-size:17px;color:var(--ink);margin:8px 0 6px;line-height:1.5}
.news-item:hover h3{color:var(--brand)}
.news-item p{font-size:14px;color:var(--ink-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.meta{display:block;font-size:13px;color:var(--ink-3);margin-top:8px}
.empty-card{
  min-height:180px;border:1px dashed var(--brand-line);border-radius:var(--r-md);
  background:#F5F8FB;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;padding:28px;
}
.empty-card i{font-size:26px;color:var(--ink-3)}
.empty-card p{font-size:15px;color:var(--ink-2)}

/* ---------- faq ---------- */
.faq-acc{display:flex;flex-direction:column;gap:12px}
.faq-acc .accordion-item{
  border:1px solid var(--border);border-radius:14px;overflow:hidden;background:#fff;
  box-shadow:var(--sh1);
}
.faq-acc .accordion-button{
  background:#fff;color:var(--ink);font-size:17px;font-weight:600;
  padding:20px 54px 20px 22px;border-radius:14px;box-shadow:none;position:relative;
  transition:color .2s ease,background-color .2s ease;
}
.faq-acc .accordion-button::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;
  background:var(--brand);opacity:0;transition:opacity .2s ease;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--brand);background:#F8FCFF}
.faq-acc .accordion-button:not(.collapsed)::before{opacity:1}
.faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--brand);outline-offset:-2px}
.faq-acc .accordion-button::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  background-image:none;font-size:14px;color:var(--ink-3);
  position:absolute;right:22px;top:50%;transform:translateY(-50%) rotate(0deg);
  transition:transform .2s ease,color .2s ease;width:auto;height:auto;
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(180deg);color:var(--brand)}
.faq-acc .accordion-body{padding:0 22px 22px;font-size:15.5px;color:var(--ink-2);line-height:1.85}

/* ---------- cta ---------- */
.cta-panel{
  position:relative;background:var(--panel);border-radius:var(--r-xl);
  padding:56px;overflow:hidden;display:grid;grid-template-columns:1.25fr .75fr;
  gap:40px;align-items:center;
}
.cta-panel::after{
  content:"";position:absolute;inset:0;opacity:.06;pointer-events:none;
  background-image:repeating-linear-gradient(115deg,#fff 0 1px,transparent 1px 26px);
}
.cta-panel>*{position:relative;z-index:1}
.cta-panel h2{color:#fff;margin-bottom:14px}
.cta-panel .cta-sub{color:#B9CBDC;font-size:16px;margin-bottom:22px}
.cta-points{display:flex;flex-direction:column;gap:12px}
.cta-points li{display:flex;align-items:center;gap:10px;color:#DCE7F1;font-size:15px}
.cta-points i{color:#4FD1A5}
.cta-buttons{display:flex;flex-direction:column;gap:14px;justify-self:end;width:100%;max-width:300px}

/* ---------- footer ---------- */
.site-footer{background:#fff;border-top:1px solid var(--border);margin-top:0;padding:64px 0 30px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;margin-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:34px;height:34px;font-size:16px}
.footer-brand span{font-size:18px;font-weight:700;color:var(--brand)}
.footer-about{font-size:14.5px;color:var(--ink-2);line-height:1.85;max-width:340px}
.footer-title{font-size:15.5px;font-weight:700;color:var(--ink);margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14.5px;color:var(--ink-2)}
.footer-links a:hover{color:var(--brand)}
.footer-bottom{
  border-top:1px solid var(--divider);padding-top:22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:var(--ink-3);
}

@media (max-width:1399px){
  .section{padding:80px 0}
  .cta-panel{padding:48px}
}
@media (max-width:991px){
  .nav-links,.nav-actions .btn-ghost{display:none}
  .nav-toggle{display:flex}
  .nav-actions .btn-brand{display:none}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-media img{height:340px}
  .tier-grid{grid-template-columns:1fr;gap:20px}
  .tier-card.is-featured,.tier-card.is-featured:hover{transform:none}
  .preview-grid{grid-template-columns:1fr 1fr;gap:20px}
  .news-grid{grid-template-columns:1fr}
  .news-lead-media{height:230px}
  .cta-panel{grid-template-columns:1fr;padding:40px 32px}
  .cta-buttons{justify-self:stretch;max-width:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .hero{padding:28px 0 48px}
  .hero-media img{height:250px}
  .hero-stat{right:12px;bottom:-16px}
  .compare-desktop{display:none}
  .compare-mobile{display:block}
  .preview-grid{grid-template-columns:1fr}
  .sec-head-row{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr}
  .faq-acc .accordion-button{font-size:15.5px;padding:18px 48px 18px 18px}
}
@media (max-width:575px){
  .hero-cta{flex-direction:column}
  .hero-cta .btn-brand,.hero-cta .btn-ghost{width:100%}
  .cta-panel{padding:32px 20px}
  .cta-buttons .btn-accent,.cta-buttons .btn-line{width:100%}
  .tier-card{padding:22px 20px}
  .trust-row{gap:16px}
}

/* roulang page: article */
:root{
  --bs-primary:#0E6BA8;
  --bs-body-color:#10161F;
  --bs-body-bg:#F5F8FB;
  --bs-border-color:#E2E9F1;
  --bs-border-radius:10px;
  --brand:#0E6BA8;
  --brand-hover:#0B5788;
  --brand-active:#094A73;
  --brand-soft:#E7F1F9;
  --brand-line:#BBD8EC;
  --accent:#F27A1A;
  --accent-2:#F5B942;
  --green:#178F6B;
  --danger:#D9534F;
  --ink:#10161F;
  --ink-2:#4A5666;
  --ink-3:#7C8899;
  --line:#E2E9F1;
  --divider:#EEF3F8;
  --page:#F5F8FB;
  --card:#FFFFFF;
  --panel:#0B2A44;
  --soft:#EDF3F9;
  --r-btn:10px;
  --r-card:16px;
  --r-lg:20px;
  --r-panel:24px;
  --sh1:0 2px 8px rgba(16,32,56,.05);
  --sh2:0 10px 30px rgba(16,32,56,.07);
  --sh3:0 18px 44px rgba(16,32,56,.10);
  --t:200ms ease;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--page);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--brand-hover)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums}

.container{width:100%;padding-left:20px;padding-right:20px;margin-left:auto;margin-right:auto}
@media (min-width:768px){.container{max-width:720px;padding-left:20px;padding-right:20px}}
@media (min-width:992px){.container{max-width:960px}}
@media (min-width:1200px){.container{max-width:1140px}}
@media (min-width:1400px){.container{max-width:1320px}}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(245,248,251,.94);backdrop-filter:blur(8px);padding:14px 0 12px}
.nav-card{
  display:flex;align-items:center;gap:18px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh2);
  min-height:70px;
  padding:10px 24px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand:hover{color:var(--brand)}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(140deg,var(--brand),#1590C8);
  color:#fff;display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;flex:0 0 auto;
}
.brand-name{font-size:19px;font-weight:700;color:var(--brand);letter-spacing:0}
.nav-links{display:flex;align-items:center;gap:8px;flex:1 1 auto;flex-wrap:wrap}
.nav-chip{
  display:inline-flex;align-items:center;gap:8px;
  height:42px;padding:0 14px;border-radius:10px;
  background:var(--soft);color:var(--ink-2);
  font-size:14px;font-weight:500;white-space:nowrap;
  transition:background var(--t),color var(--t),box-shadow var(--t);
}
.nav-chip i{font-size:14px;color:var(--ink-3);transition:color var(--t)}
.nav-chip:hover{background:#fff;color:var(--brand);box-shadow:inset 0 0 0 1px var(--brand)}
.nav-chip:hover i{color:var(--brand)}
.nav-chip.is-active{background:var(--brand);color:#fff;box-shadow:none}
.nav-chip.is-active i{color:#fff}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  height:42px;padding:0 18px;border-radius:var(--r-btn);
  background:#fff;border:1px solid var(--line);
  color:var(--brand);font-size:14px;font-weight:600;
  transition:border-color var(--t),color var(--t),transform var(--t);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-hover);transform:translateY(-1px)}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  background:var(--brand);border:1px solid var(--brand);color:#fff;
  font-size:15px;font-weight:600;box-shadow:var(--sh1);
  transition:background var(--t),transform var(--t),box-shadow var(--t);
}
.btn-brand:hover{background:var(--brand-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--sh2)}
.btn-brand:active{background:var(--brand-active);transform:translateY(0)}
.btn-orange{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  background:var(--accent);border:1px solid var(--accent);color:#fff;
  font-size:15px;font-weight:700;box-shadow:0 8px 20px rgba(242,122,26,.24);
  transition:transform var(--t),filter var(--t),box-shadow var(--t);
}
.btn-orange:hover{color:#fff;transform:translateY(-2px);filter:brightness(.96)}
.btn-orange:active{transform:translateY(0)}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  background:#fff;border:1px solid var(--line);color:var(--brand);
  font-size:15px;font-weight:600;
  transition:border-color var(--t),color var(--t),transform var(--t);
}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-hover);transform:translateY(-1px)}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
.btn-text:hover{color:var(--brand-hover);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  background:var(--brand-soft);border:1px solid var(--line);
  color:var(--brand);font-size:17px;align-items:center;justify-content:center;
}
@media (max-width:1100px){
  .nav-card{gap:12px;padding:10px 16px}
  .nav-links{display:none}
  .nav-actions .btn-ghost{display:none}
  .nav-toggle{display:inline-flex}
  .nav-actions{margin-left:auto}
}
@media (max-width:575px){
  .nav-actions .btn-brand{display:none}
  .brand-name{font-size:17px}
}

/* 移动端抽屉 */
.mobile-nav{background:var(--panel);color:#fff;width:300px;border:none}
.mobile-nav .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.12);padding:18px 20px}
.mobile-nav .brand-name{color:#fff;font-size:18px}
.mobile-nav .btn-close-nav{
  width:38px;height:38px;border-radius:10px;border:1px solid rgba(255,255,255,.22);
  background:transparent;color:#fff;font-size:16px;
}
.mobile-nav .offcanvas-body{padding:18px 16px 26px;display:flex;flex-direction:column;gap:10px}
.mobile-link{
  display:flex;align-items:center;gap:12px;min-height:48px;padding:0 14px;
  border-radius:12px;background:rgba(255,255,255,.07);
  color:rgba(255,255,255,.9);font-size:15px;font-weight:500;
  border:1px solid rgba(255,255,255,.08);
  transition:background var(--t),color var(--t);
}
.mobile-link i{color:rgba(255,255,255,.6);width:18px;text-align:center}
.mobile-link:hover,.mobile-link.is-active{background:rgba(255,255,255,.14);color:#fff}
.mobile-link:hover i,.mobile-link.is-active i{color:#fff}

/* ---------- 阅读进度 ---------- */
.read-progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--brand);z-index:1080;transition:width 90ms linear}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:22px 0 4px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-2)}
.crumb a{color:var(--ink-2)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:#C3CDD9}
.crumb .current{color:var(--brand);font-weight:600}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  margin-top:18px;padding:44px 48px 40px;
  background-image:linear-gradient(115deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.92) 52%,rgba(231,241,249,.82) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  border:1px solid var(--line);box-shadow:var(--sh1);
}
.article-hero .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);
  border:1px solid var(--brand-line);font-size:13px;font-weight:600;margin-bottom:18px;
}
.article-title{
  font-size:clamp(28px,3.4vw,40px);line-height:1.35;font-weight:700;
  max-width:900px;letter-spacing:0;
}
.meta-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:18px;font-size:14px;color:var(--ink-2);
}
.meta-bar .pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);
  color:var(--brand);font-size:13px;font-weight:600;
}
.meta-bar .dot{color:#C3CDD9}
.meta-bar span.num{font-variant-numeric:tabular-nums}
@media (max-width:767px){
  .article-hero{padding:28px 20px 26px;border-radius:var(--r-card)}
}

/* ---------- 主体布局 ---------- */
.article-main{padding:34px 0 0}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:40px;align-items:start}
@media (max-width:991px){
  .article-layout{grid-template-columns:1fr;gap:28px}
}
.article-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh1);padding:36px 40px 32px;
}
@media (max-width:767px){.article-card{padding:22px 18px 24px}}

/* ---------- 正文排版 ---------- */
.article-body{max-width:820px;font-size:17px;line-height:1.9;color:var(--ink)}
.article-body>*+*{margin-top:20px}
.article-body p{margin:0 0 20px;color:#1A2330}
.article-body h2{
  position:relative;margin:38px 0 16px;padding-left:16px;
  font-size:26px;line-height:1.4;font-weight:700;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:9px;width:4px;height:24px;
  border-radius:2px;background:var(--brand);
}
.article-body h3{font-size:20px;line-height:1.5;font-weight:600;margin:28px 0 12px}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:1.4em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:8px;color:#1A2330}
.article-body li::marker{color:var(--brand)}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;
  background:var(--brand-soft);border-left:4px solid var(--brand);
  border-radius:0 12px 12px 0;color:#183A55;font-size:16px;
}
.article-body blockquote p{margin:0;color:inherit}
.article-body a{color:var(--brand);font-weight:500;text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-hover)}
.article-body img{border-radius:12px;margin:24px auto;box-shadow:inset 0 0 0 1px rgba(16,32,56,.06)}
.article-body figure{margin:24px 0}
.article-body figcaption{margin-top:10px;text-align:center;font-size:13px;color:var(--ink-3)}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;
  border:1px solid var(--line);border-radius:14px;overflow:hidden;
  font-size:15px;margin:24px 0;
}
.article-body thead th{background:var(--panel);color:#fff;font-weight:600;text-align:left}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--divider)}
.article-body tbody tr:last-child td{border-bottom:none}
.article-body tbody tr:hover{background:var(--page)}
.article-body code{background:var(--soft);padding:2px 6px;border-radius:6px;font-size:14px;color:var(--brand-hover)}

/* ---------- 标签 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;padding-top:26px;border-top:1px solid var(--divider)}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;background:var(--soft);
  color:var(--ink-2);font-size:13px;font-weight:500;
  transition:background var(--t),color var(--t);
}
.tag:hover{background:var(--brand-soft);color:var(--brand)}

/* ---------- 上一篇 / 下一篇 ---------- */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:26px}
.pager-card{
  display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px 20px;box-shadow:var(--sh1);transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.pager-card:hover{transform:translateY(-3px);box-shadow:var(--sh3);border-color:var(--brand-line)}
.pager-card .dir{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--ink-3);margin-bottom:8px}
.pager-card .ttl{
  font-size:15px;font-weight:600;color:var(--ink);line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.pager-card.next{text-align:right}
.pager-card.next .dir{justify-content:flex-end}
@media (max-width:575px){.pager{grid-template-columns:1fr}}

.article-foot-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}

/* ---------- 侧栏 ---------- */
.side-col{display:flex;flex-direction:column;gap:20px;position:sticky;top:100px}
@media (max-width:991px){.side-col{position:static}}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh1);padding:22px 20px;
}
.side-card h2{font-size:16px;font-weight:700;display:flex;align-items:center;gap:8px;margin-bottom:14px}
.side-card h2 i{color:var(--brand);font-size:15px}
.side-card .side-sub{font-size:13px;color:var(--ink-3);margin:-8px 0 14px}
.tier-line{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.tier-badge{
  flex:0 0 auto;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:700;color:#fff;
}
.tier-badge.base{background:#7C8899}
.tier-badge.pro{background:var(--brand)}
.tier-badge.max{background:linear-gradient(90deg,var(--accent),var(--accent-2))}
.tier-line span.txt{font-size:13.5px;color:var(--ink-2);line-height:1.6}
.side-list a{
  display:flex;gap:10px;padding:11px 0;border-bottom:1px solid var(--divider);
  color:var(--ink);font-size:14.5px;line-height:1.6;transition:color var(--t);
}
.side-list a:last-child{border-bottom:none}
.side-list a:hover{color:var(--brand)}
.side-list .idx{
  flex:0 0 auto;width:20px;height:20px;border-radius:6px;background:var(--soft);
  color:var(--ink-3);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:3px;
}
.side-list a:hover .idx{background:var(--brand);color:#fff}
.side-list .time{display:block;font-size:12.5px;color:var(--ink-3);margin-top:4px;font-variant-numeric:tabular-nums}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:330px;overflow:auto}
.toc-link{
  padding:8px 10px;border-radius:8px;font-size:14px;color:var(--ink-2);
  line-height:1.55;transition:background var(--t),color var(--t);
}
.toc-link:hover{background:var(--brand-soft);color:var(--brand)}

/* ---------- 相关推荐 ---------- */
.section{padding:72px 0 0}
.section-head{margin-bottom:26px}
.section-head h2{font-size:30px;line-height:1.35}
.section-head p{margin-top:10px;font-size:15px;color:var(--ink-2)}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
@media (max-width:991px){.card-grid{grid-template-columns:repeat(2,1fr);gap:20px}}
@media (max-width:575px){.card-grid{grid-template-columns:1fr}}
.rel-card{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh2);transition:transform var(--t),box-shadow var(--t);
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh3)}
.rel-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.rel-card .thumb img{width:100%;height:100%;object-fit:cover;box-shadow:inset 0 0 0 1px rgba(16,32,56,.06)}
.rel-card .body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-card .pill-cat{
  align-self:flex-start;padding:4px 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:12.5px;font-weight:600;
}
.rel-card h3{font-size:17px;line-height:1.55;font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card h3 a{color:var(--ink)}
.rel-card h3 a:hover{color:var(--brand)}
.rel-card p{font-size:14px;line-height:1.75;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card .meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums}

/* ---------- CTA 面板 ---------- */
.cta-panel{
  position:relative;overflow:hidden;background:var(--panel);
  border-radius:var(--r-panel);padding:52px 56px;color:#fff;
  display:grid;grid-template-columns:1.4fr 1fr;gap:36px;align-items:center;
  box-shadow:var(--sh3);
}
.cta-panel::after{
  content:"";position:absolute;right:-80px;top:-60px;width:340px;height:340px;
  border-radius:50%;border:1px solid rgba(255,255,255,.10);
  box-shadow:0 0 0 34px rgba(255,255,255,.04),0 0 0 78px rgba(255,255,255,.03);
  pointer-events:none;
}
.cta-panel h2{color:#fff;font-size:32px;line-height:1.35;position:relative;z-index:1}
.cta-panel .cta-desc{color:rgba(255,255,255,.78);font-size:15.5px;margin-top:12px;position:relative;z-index:1}
.cta-points{display:flex;flex-wrap:wrap;gap:14px 26px;margin-top:22px;position:relative;z-index:1}
.cta-points span{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.86)}
.cta-points i{color:var(--green)}
.cta-actions{display:flex;flex-direction:column;gap:14px;align-items:stretch;position:relative;z-index:1}
.btn-on-dark{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;border-radius:var(--r-btn);background:transparent;
  border:1px solid rgba(255,255,255,.45);color:#fff;font-size:15px;font-weight:600;
  transition:background var(--t),border-color var(--t);
}
.btn-on-dark:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}
@media (max-width:991px){
  .cta-panel{grid-template-columns:1fr;padding:40px 32px}
  .cta-panel h2{font-size:26px}
}
@media (max-width:575px){.cta-panel{padding:32px 20px;border-radius:var(--r-lg)}}

/* ---------- 空态 ---------- */
.empty-card{
  background:var(--page);border:1px dashed #C9D6E3;border-radius:var(--r-card);
  min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;padding:32px 20px;
}
.empty-card i{font-size:30px;color:var(--ink-3)}
.empty-card p{font-size:15px;color:var(--ink-2)}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);margin-top:80px;padding:56px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--brand)}
.footer-about{margin-top:14px;font-size:14px;line-height:1.85;color:var(--ink-2);max-width:420px}
.footer-title{font-size:15px;font-weight:700;margin-bottom:14px;color:var(--ink)}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--ink-2)}
.footer-links a:hover{color:var(--brand)}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid var(--divider);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--ink-3);
}
@media (max-width:991px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category1 */
:root{
  --brand:#0E6BA8; --brand-hover:#0B5788; --brand-active:#094A73;
  --brand-10:#E7F1F9; --brand-18:#BBD8EC;
  --accent:#F27A1A; --accent-hover:#D9690E;
  --green:#178F6B; --danger:#D9534F;
  --ink:#10161F; --ink-2:#4A5666; --ink-3:#7C8899;
  --border:#E2E9F1; --sep:#EEF3F8; --page:#F5F8FB; --card:#FFFFFF;
  --dark:#0B2A44; --dark-2:#123A5C;
  --r-sm:10px; --r-md:14px; --r-lg:18px; --r-xl:24px;
  --sh1:0 2px 8px rgba(16,32,56,.05);
  --sh2:0 10px 30px rgba(16,32,56,.07);
  --sh3:0 18px 44px rgba(16,32,56,.10);
  --bs-primary:#0E6BA8; --bs-body-color:#10161F; --bs-body-bg:#F5F8FB;
  --bs-border-color:#E2E9F1; --bs-border-radius:14px; --bs-link-color:#0E6BA8;
  --bs-link-hover-color:#0B5788; --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--bs-font-sans-serif);font-size:17px;line-height:1.85;
  color:var(--ink);background:var(--page);
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,box-shadow .2s ease}
a:hover{color:var(--brand-hover)}
img{max-width:100%;display:block}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums}

.container{padding-left:20px;padding-right:20px;margin-left:auto;margin-right:auto;width:100%}
@media (min-width:768px){.container{max-width:720px}}
@media (min-width:992px){.container{max-width:960px}}
@media (min-width:1200px){.container{max-width:1140px}}
@media (min-width:1400px){.container{max-width:1320px}}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;background:var(--page);
  padding:14px 0 0;
}
.nav-card{
  background:var(--card);border:1px solid var(--border);border-radius:16px;
  box-shadow:var(--sh2);min-height:68px;padding:12px 22px;
  display:flex;align-items:center;gap:18px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:10px;background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0;
}
.brand-name{font-size:19px;font-weight:700;color:var(--brand);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-left:6px}
.nav-chip{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 14px;
  border-radius:10px;background:#EDF3F9;border:1px solid transparent;
  color:var(--ink-2);font-size:14px;font-weight:600;white-space:nowrap;
}
.nav-chip i{font-size:15px;color:var(--ink-3);transition:color .2s ease}
.nav-chip:hover{background:#fff;border-color:var(--brand-18);color:var(--brand);box-shadow:var(--sh1)}
.nav-chip:hover i{color:var(--brand)}
.nav-chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:var(--sh1)}
.nav-chip.is-active i{color:#fff}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex-shrink:0}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;height:42px;padding:0 18px;
  border:1px solid var(--border);border-radius:var(--r-sm);background:#fff;
  color:var(--brand);font-size:14px;font-weight:600;white-space:nowrap;
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-hover);background:var(--brand-10)}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;height:42px;padding:0 20px;
  border-radius:var(--r-sm);background:var(--brand);color:#fff;font-size:14px;font-weight:600;
  box-shadow:var(--sh1);white-space:nowrap;
}
.btn-brand:hover{background:var(--brand-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--sh2)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--border);
  background:#fff;color:var(--brand);font-size:17px;align-items:center;justify-content:center;
}
.nav-toggle:hover{background:var(--brand-10)}

/* drawer */
.nav-drawer{background:var(--dark);color:#fff;width:min(86vw,340px)}
.nav-drawer .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.10);padding:18px 20px}
.drawer-title{font-size:17px;font-weight:700;color:#fff}
.nav-drawer .btn-close{filter:invert(1) grayscale(1);opacity:.8}
.nav-drawer .offcanvas-body{padding:18px 20px 28px;display:flex;flex-direction:column;gap:10px}
.drawer-link{
  display:flex;align-items:center;gap:10px;min-height:48px;padding:0 16px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.10);
  border-radius:12px;color:#DCE7F1;font-size:15px;font-weight:600;
}
.drawer-link i{color:#8FB6D2}
.drawer-link:hover{background:rgba(255,255,255,.12);color:#fff}
.drawer-link.is-active{background:var(--brand);border-color:var(--brand);color:#fff}
.drawer-link.is-active i{color:#fff}
.drawer-cta{margin-top:8px;height:48px;display:flex;align-items:center;justify-content:center;border-radius:12px;background:var(--accent);color:#fff;font-weight:700}
.drawer-cta:hover{background:var(--accent-hover);color:#fff}

/* ---------- buttons ---------- */
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:var(--r-sm);background:var(--accent);color:#fff;
  font-size:16px;font-weight:700;box-shadow:var(--sh1);border:0;transition:all .2s ease;
}
.btn-accent:hover{background:var(--accent-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--sh2)}
.btn-accent:active{transform:translateY(0);box-shadow:var(--sh1)}
.btn-secondary-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-sm);background:#fff;border:1px solid var(--border);
  color:var(--brand);font-size:16px;font-weight:600;
}
.btn-secondary-line:hover{border-color:var(--brand);color:var(--brand-hover);background:#fff;transform:translateY(-2px);box-shadow:var(--sh1)}
.btn-plain{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);
}
.btn-plain i{font-size:12px;transition:transform .2s ease}
.btn-plain:hover{color:var(--brand-hover);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px}
.btn-plain:hover i{transform:translateX(3px)}

/* ---------- breadcrumb ---------- */
.crumbs{display:flex;align-items:center;gap:8px;font-size:14px;color:#A9C2D6;flex-wrap:wrap;margin-bottom:18px}
.crumbs a{color:#C9DCEB}
.crumbs a:hover{color:#fff}
.crumbs .sep{color:rgba(255,255,255,.35)}
.crumbs .now{color:#fff;font-weight:600}

/* ---------- hero ---------- */
.page-hero{
  background-color:var(--dark);
  background-image:linear-gradient(100deg,rgba(9,34,58,.94) 0%,rgba(9,34,58,.80) 48%,rgba(9,34,58,.46) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  color:#fff;padding:34px 0 76px;margin-bottom:0;
}
.hero-pill{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  font-size:13px;font-weight:600;color:#DCE9F4;margin-bottom:16px;
}
.hero-pill i{color:#F5B942}
.page-hero h1{
  font-size:clamp(30px,4vw,48px);line-height:1.25;font-weight:700;color:#fff;max-width:16em;
}
.hero-sub{font-size:18px;color:#C7D8E6;margin-top:14px;max-width:32em;line-height:1.7}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-trust{
  display:flex;flex-wrap:wrap;gap:12px 30px;margin-top:30px;
  padding-top:22px;border-top:1px solid rgba(255,255,255,.16);
}
.hero-trust li{display:flex;align-items:center;gap:8px;font-size:13.5px;color:#BDD3E4}
.hero-trust i{color:#178F6B;font-size:14px}

/* ---------- section base ---------- */
.section{padding:88px 0}
.section.tight{padding:64px 0}
.section.alt{background:#fff}
.section-head{max-width:760px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  color:var(--brand);background:var(--brand-10);border-radius:999px;padding:5px 14px;margin-bottom:14px;
}
.section-title{font-size:clamp(24px,2.6vw,32px);line-height:1.35;font-weight:700;color:var(--ink)}
.section-sub{margin-top:12px;color:var(--ink-2);font-size:16px;line-height:1.8}

/* ---------- matrix cards ---------- */
.matrix-card{
  background:var(--card);border:1px solid var(--border);border-radius:16px;padding:26px;
  box-shadow:var(--sh2);height:100%;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;
}
.matrix-card:hover{transform:translateY(-4px);box-shadow:var(--sh3);border-color:var(--brand-18)}
.icon-tile{
  width:44px;height:44px;border-radius:12px;background:var(--brand-10);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:18px;
}
.matrix-card h3{font-size:20px;font-weight:600;line-height:1.5;color:var(--ink)}
.matrix-card p{margin-top:10px;font-size:15px;line-height:1.75;color:var(--ink-2);flex:1}
.matrix-card .btn-plain{margin-top:18px}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;
  padding:4px 12px;border-radius:999px;background:var(--brand-10);color:var(--brand);
}
.tag.gray{background:#EFF4F9;color:var(--ink-2)}
.tag.green{background:rgba(23,143,107,.10);color:var(--green)}
.tag.gold{background:linear-gradient(90deg,#F27A1A,#F5B942);color:#fff}

/* ---------- scenes ---------- */
.scene-wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:44px;align-items:center}
.scene-figure{position:relative;border-radius:20px;overflow:hidden;box-shadow:var(--sh3)}
.scene-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border:1px solid rgba(16,32,56,.06);border-radius:20px}
.scene-figure .float-card{
  position:absolute;right:18px;bottom:18px;background:#fff;border-radius:12px;box-shadow:var(--sh2);
  padding:14px 18px;display:flex;flex-direction:column;gap:2px;
}
.scene-figure .float-card strong{font-size:24px;font-weight:700;color:var(--brand);line-height:1.2}
.scene-figure .float-card span{font-size:13px;color:var(--ink-3)}
.scene-list{display:flex;flex-direction:column;gap:14px;margin-top:24px}
.scene-item{
  display:flex;gap:14px;padding:18px 20px;background:#fff;border:1px solid var(--border);
  border-radius:14px;box-shadow:var(--sh1);transition:box-shadow .2s ease,border-color .2s ease;
}
.scene-item:hover{box-shadow:var(--sh2);border-color:var(--brand-18)}
.scene-item i{color:var(--brand);font-size:17px;margin-top:5px}
.scene-item h3{font-size:17px;font-weight:600;color:var(--ink)}
.scene-item p{font-size:14.5px;color:var(--ink-2);line-height:1.7;margin-top:4px}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;position:relative;margin-top:8px}
.step{
  background:#fff;border:1px solid var(--border);border-radius:16px;padding:24px 22px;
  box-shadow:var(--sh1);position:relative;
}
.step-num{
  width:38px;height:38px;border-radius:999px;background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;
  margin-bottom:16px;box-shadow:var(--sh1);
}
.step h3{font-size:17px;font-weight:600;color:var(--ink)}
.step p{font-size:14.5px;color:var(--ink-2);line-height:1.7;margin-top:8px}

/* ---------- spec table ---------- */
.table-shell{border-radius:16px;overflow:hidden;border:1px solid var(--border);box-shadow:var(--sh2);background:#fff}
table.spec{width:100%;border-collapse:collapse;font-size:15px}
table.spec thead th{
  background:var(--dark);color:#fff;font-weight:600;font-size:14.5px;
  padding:16px 20px;text-align:left;white-space:nowrap;
}
table.spec tbody td{
  padding:16px 20px;border-bottom:1px solid var(--sep);color:var(--ink-2);vertical-align:middle;
  font-variant-numeric:tabular-nums;
}
table.spec tbody tr:last-child td{border-bottom:0}
table.spec tbody tr:hover td{background:var(--brand-10)}
table.spec td:first-child{color:var(--ink);font-weight:600}
.tick{color:var(--green);font-size:15px}
.dash{color:#C4CED9}
.table-note{margin-top:14px;font-size:14px;color:var(--ink-3)}

/* ---------- faq ---------- */
.faq-list{margin-top:4px}
.accordion-item.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:14px;overflow:hidden;margin-bottom:12px;
  box-shadow:var(--sh1);
}
.accordion-item.faq-item:last-child{margin-bottom:0}
.accordion-button{
  font-size:16.5px;font-weight:600;color:var(--ink);background:#fff;padding:20px 22px;
  box-shadow:none;border-radius:14px !important;
}
.accordion-button:not(.collapsed){
  color:var(--brand);background:#fff;box-shadow:inset 3px 0 0 var(--brand);
}
.accordion-button:focus{box-shadow:none;border-color:transparent}
.accordion-button:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.accordion-button::after{
  background-image:none;content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;color:var(--brand);width:22px;height:22px;display:flex;align-items:center;justify-content:center;
  transition:transform .2s ease;
}
.accordion-button:not(.collapsed)::after{transform:rotate(180deg)}
.accordion-body{padding:0 22px 22px;color:var(--ink-2);font-size:15.5px;line-height:1.8}

/* ---------- cta ---------- */
.cta-panel{
  background:var(--dark);border-radius:24px;padding:56px;color:#fff;position:relative;overflow:hidden;
}
.cta-panel::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(circle at 88% 12%,rgba(242,122,26,.18) 0,transparent 42%),
                   repeating-linear-gradient(115deg,rgba(255,255,255,.05) 0 2px,transparent 2px 46px);
  pointer-events:none;
}
.cta-grid{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:40px;align-items:center}
.cta-panel h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;color:#fff;line-height:1.35}
.cta-panel .cta-sub{margin-top:12px;color:#BFD4E4;font-size:16px}
.cta-points{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:24px}
.cta-points li{display:flex;align-items:center;gap:8px;font-size:14.5px;color:#D6E5F0}
.cta-points i{color:#178F6B}
.cta-actions{display:flex;flex-direction:column;gap:14px;align-items:stretch}
.cta-actions .btn-accent,.cta-actions .btn-white-line{width:100%}
.btn-white-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;
  border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.35);background:transparent;
  color:#fff;font-size:16px;font-weight:600;
}
.btn-white-line:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}

/* ---------- footer ---------- */
.site-footer{background:#fff;border-top:1px solid var(--border);padding:64px 0 28px;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--brand);margin-bottom:16px}
.footer-about{font-size:14.5px;line-height:1.8;color:var(--ink-2);max-width:36em}
.footer-title{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14.5px;color:var(--ink-2)}
.footer-links a:hover{color:var(--brand)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--sep);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13.5px;color:var(--ink-3);
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .nav-chip{padding:0 12px;font-size:13.5px}
  .nav-card{gap:12px;padding:12px 18px}
}
@media (max-width:991px){
  .nav-links,.nav-actions{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .section{padding:68px 0}
  .scene-wrap{grid-template-columns:1fr;gap:32px}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-grid{grid-template-columns:1fr;gap:28px}
  .cta-panel{padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  body{font-size:16px}
  .page-hero{padding:26px 0 56px}
  .hero-sub{font-size:16px}
  .hero-cta .btn-accent,.hero-cta .btn-secondary-line{width:100%}
  .section{padding:52px 0}
  .steps{grid-template-columns:1fr}
  .matrix-card{padding:20px}
  .table-shell{overflow-x:auto}
  table.spec{min-width:560px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
}
@media (max-width:575px){
  .container{padding-left:16px;padding-right:16px}
  .brand-name{font-size:17px}
  .btn-accent,.btn-secondary-line{width:100%;padding:12px 18px;font-size:15px}
  .cta-panel{padding:32px 22px;border-radius:18px}
  .section-head{margin-bottom:30px}
}

/* roulang page: category2 */
:root{
  --brand:#0E6BA8;
  --brand-h:#0B5788;
  --brand-a:#094A73;
  --brand-10:#E7F1F9;
  --brand-18:#BBD8EC;
  --accent:#F27A1A;
  --accent-2:#F5B942;
  --green:#178F6B;
  --danger:#D9534F;
  --ink:#10161F;
  --ink-2:#4A5666;
  --ink-3:#7C8899;
  --line:#E2E9F1;
  --sep:#EEF3F8;
  --page:#F5F8FB;
  --card:#FFFFFF;
  --dark:#0B2A44;
  --r-s:10px;
  --r-m:14px;
  --r-l:18px;
  --r-xl:24px;
  --sh1:0 2px 8px rgba(16,32,56,.05);
  --sh2:0 10px 30px rgba(16,32,56,.07);
  --sh3:0 18px 44px rgba(16,32,56,.10);
  --bs-primary:#0E6BA8;
  --bs-body-color:#10161F;
  --bs-body-bg:#F5F8FB;
  --bs-border-color:#E2E9F1;
  --bs-border-radius:10px;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-h);}
img{max-width:100%;height:auto;display:block;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container{
  width:100%;
  max-width:1140px;
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:1400px){.container{max-width:1320px;}}
@media (min-width:992px) and (max-width:1199.98px){.container{max-width:960px;}}
@media (min-width:768px) and (max-width:991.98px){.container{max-width:720px;}}
.num{font-variant-numeric:tabular-nums;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:var(--page);
  padding:12px 0;
}
.nav-card{
  display:flex;
  align-items:center;
  gap:16px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:var(--sh2);
  min-height:72px;
  padding:10px 22px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:36px;
  height:36px;
  border-radius:10px;
  background:var(--brand);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:17px;
  flex-shrink:0;
}
.brand-name{
  font-size:19px;
  font-weight:700;
  color:var(--brand);
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:8px;
  margin-left:auto;
}
.nav-chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:42px;
  padding:0 14px;
  border-radius:10px;
  background:#EDF3F9;
  border:1px solid transparent;
  color:var(--ink-2);
  font-size:14px;
  font-weight:500;
  white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.nav-chip i{font-size:15px;color:var(--ink-3);transition:color .2s ease;}
.nav-chip:hover{
  background:#fff;
  border-color:var(--brand-18);
  color:var(--brand);
}
.nav-chip:hover i{color:var(--brand);}
.nav-chip.is-active{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
}
.nav-chip.is-active i{color:#fff;}
.nav-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.btn-brand{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  font-size:15px;
  font-weight:600;
  color:#fff;
  background:var(--accent);
  border:1px solid var(--accent);
  border-radius:10px;
  box-shadow:var(--sh1);
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,background .2s ease;
}
.btn-brand:hover{
  color:#fff;
  background:#DE6B0F;
  border-color:#DE6B0F;
  transform:translateY(-2px);
  box-shadow:var(--sh2);
}
.btn-brand:active{transform:translateY(0);box-shadow:var(--sh1);}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  font-size:15px;
  font-weight:600;
  color:var(--brand);
  background:#fff;
  border:1px solid var(--line);
  border-radius:10px;
  box-shadow:var(--sh1);
  transition:border-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-ghost:hover{
  border-color:var(--brand);
  color:var(--brand-h);
  transform:translateY(-2px);
  box-shadow:var(--sh2);
}
.btn-ghost:active{transform:translateY(0);}
.btn-line{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--brand);
  border-bottom:2px solid transparent;
  padding-bottom:2px;
}
.btn-line:hover{border-bottom-color:var(--brand);}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:10px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--brand);
  font-size:18px;
  align-items:center;
  justify-content:center;
  margin-left:auto;
}

/* ============ 移动抽屉 ============ */
.drawer{
  background:var(--dark) !important;
  color:#fff;
  width:300px !important;
  border-left:0 !important;
}
.drawer-header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:18px 20px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.drawer-title{
  font-size:17px;
  font-weight:700;
  color:#fff;
}
.drawer-close{
  width:44px;
  height:44px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.2);
  background:transparent;
  color:#fff;
  font-size:18px;
}
.drawer-body{padding:18px 20px 28px;}
.drawer-item{
  display:flex;
  align-items:center;
  gap:10px;
  min-height:48px;
  padding:0 14px;
  margin-bottom:10px;
  border-radius:10px;
  background:rgba(255,255,255,.07);
  color:#EAF2F9;
  font-size:15px;
}
.drawer-item i{color:var(--brand-18);}
.drawer-item:hover{background:rgba(255,255,255,.14);color:#fff;}
.drawer-item.is-active{background:var(--brand);color:#fff;}
.drawer-item.is-active i{color:#fff;}
.drawer-cta{width:100%;margin-top:8px;}

/* ============ 面包屑 ============ */
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:18px 0 0;
  font-size:14px;
  color:var(--ink-2);
}
.crumbs a{color:var(--ink-2);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:var(--ink-3);}
.crumbs .cur{color:var(--brand);font-weight:600;}

/* ============ Hero ============ */
.page-hero{padding:28px 0 0;}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:32px;
  align-items:center;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  box-shadow:var(--sh2);
  padding:40px;
  overflow:hidden;
}
.pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:var(--brand-10);
  border:1px solid var(--brand-18);
  color:var(--brand);
  font-size:13px;
  font-weight:600;
}
.page-hero h1{
  font-size:clamp(30px,3.6vw,46px);
  line-height:1.28;
  font-weight:700;
  margin:16px 0 14px;
  color:var(--ink);
}
.hero-sub{
  font-size:17px;
  color:var(--ink-2);
  margin-bottom:10px;
}
.hero-lead{
  font-size:15px;
  color:var(--ink-2);
  max-width:520px;
  margin-bottom:24px;
}
.hero-btns{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-bottom:22px;
}
.hero-trust{
  display:flex;
  flex-wrap:wrap;
  gap:8px 22px;
  font-size:13px;
  color:var(--ink-2);
}
.hero-trust span{display:inline-flex;align-items:center;gap:7px;}
.hero-trust i{color:var(--green);}
.hero-figure{
  position:relative;
  border-radius:var(--r-l);
  overflow:hidden;
  border:1px solid rgba(16,32,56,.06);
  box-shadow:var(--sh2);
}
.hero-figure img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
}
.hero-figure::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(11,42,68,.05),rgba(11,42,68,.28));
}
.float-card{
  position:absolute;
  left:18px;
  bottom:18px;
  z-index:2;
  background:#fff;
  border-radius:12px;
  box-shadow:var(--sh2);
  padding:14px 18px;
}
.float-card strong{
  display:block;
  font-size:24px;
  font-weight:700;
  color:var(--brand);
  line-height:1.2;
}
.float-card small{
  display:block;
  font-size:12px;
  color:var(--ink-3);
}

/* ============ 通用板块 ============ */
.sec{padding:88px 0;}
.sec-tight{padding:56px 0;}
.sec-alt{background:#fff;}
.sec-head{max-width:720px;margin-bottom:36px;}
.sec-head h2{
  font-size:clamp(25px,2.6vw,33px);
  line-height:1.35;
  font-weight:700;
  margin-top:12px;
}
.sec-head p{
  margin-top:12px;
  font-size:16px;
  color:var(--ink-2);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  color:var(--brand);
  letter-spacing:.04em;
}
.eyebrow::before{
  content:"";
  width:22px;
  height:3px;
  border-radius:2px;
  background:var(--brand);
}

/* ============ 双栏对比 ============ */
.dual-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:28px;
  align-items:start;
}
.dual-col{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  box-shadow:var(--sh1);
  padding:30px;
  transition:transform .2s ease,box-shadow .2s ease;
}
.dual-col:hover{transform:translateY(-4px);box-shadow:var(--sh3);}
.dual-col.is-rec{
  border:2px solid var(--brand);
  box-shadow:var(--sh3);
  transform:translateY(-8px);
}
.dual-col.is-rec:hover{transform:translateY(-12px);}
.rec-badge{
  position:absolute;
  top:-13px;
  right:24px;
  padding:5px 14px;
  border-radius:999px;
  font-size:12px;
  font-weight:700;
  color:#fff;
  background:linear-gradient(120deg,var(--accent),var(--accent-2));
  box-shadow:var(--sh1);
}
.tier-head{
  display:flex;
  align-items:center;
  gap:12px;
  padding-bottom:18px;
  border-bottom:1px solid var(--sep);
}
.tier-badge{
  width:44px;
  height:44px;
  border-radius:12px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  color:#fff;
  flex-shrink:0;
}
.tier-badge.lv-gray{background:var(--ink-3);}
.tier-badge.lv-brand{background:var(--brand);}
.tier-name{font-size:20px;font-weight:700;}
.tier-tag{font-size:13px;color:var(--ink-3);}
.dual-list{margin-top:18px;}
.dual-list li{
  display:grid;
  grid-template-columns:20px minmax(0,1fr) auto;
  gap:12px;
  align-items:center;
  padding:12px 0;
  border-bottom:1px dashed var(--sep);
  font-size:15px;
}
.dual-list li:last-child{border-bottom:0;}
.dual-list i{font-size:15px;}
.ic-yes{color:var(--green);}
.ic-no{color:#C3CDDA;}
.dl-k{color:var(--ink-2);}
.dl-v{font-weight:600;color:var(--ink);font-variant-numeric:tabular-nums;}
.dual-col.is-rec .dl-v{color:var(--brand);}
.tier-foot{
  margin-top:22px;
  padding-top:20px;
  border-top:1px solid var(--sep);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
}
.price{
  font-size:24px;
  font-weight:700;
  color:var(--ink);
  font-variant-numeric:tabular-nums;
}
.price small{font-size:13px;font-weight:500;color:var(--ink-3);margin-left:4px;}
.price .accent{color:var(--accent);}

/* ============ 四步流程 ============ */
.flow-wrap{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  box-shadow:var(--sh1);
  padding:40px;
}
.flow-list{
  position:relative;
  padding-left:38px;
}
.flow-list::before{
  content:"";
  position:absolute;
  left:9px;
  top:14px;
  bottom:14px;
  width:2px;
  background:var(--brand-18);
}
.flow-item{
  position:relative;
  padding-bottom:20px;
}
.flow-item:last-child{padding-bottom:0;}
.flow-dot{
  position:absolute;
  left:-38px;
  top:24px;
  width:20px;
  height:20px;
  border-radius:50%;
  background:#fff;
  border:2px solid var(--brand);
  box-shadow:0 0 0 4px var(--brand-10);
}
.flow-card{
  background:var(--page);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  padding:22px 24px;
  transition:box-shadow .2s ease,transform .2s ease;
}
.flow-card:hover{box-shadow:var(--sh2);transform:translateX(3px);}
.flow-card h3{
  font-size:19px;
  font-weight:700;
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:8px;
}
.flow-num{
  font-size:13px;
  font-weight:700;
  color:var(--brand);
  background:var(--brand-10);
  border-radius:999px;
  padding:3px 10px;
  font-variant-numeric:tabular-nums;
}
.flow-card p{font-size:15px;color:var(--ink-2);}
.flow-meta{
  display:inline-flex;
  align-items:center;
  gap:7px;
  margin-top:10px;
  font-size:13px;
  color:var(--ink-3);
}
.flow-meta i{color:var(--brand);}

/* ============ 场景选择行 ============ */
.pick-list{
  display:grid;
  gap:14px;
}
.pick-row{
  display:grid;
  grid-template-columns:minmax(0,1.4fr) minmax(0,1fr) auto;
  gap:20px;
  align-items:center;
  background:var(--card);
  border:1px solid var(--line);
  border-left:4px solid var(--brand-18);
  border-radius:var(--r-m);
  box-shadow:var(--sh1);
  padding:20px 24px;
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.pick-row:hover{
  border-left-color:var(--brand);
  transform:translateY(-3px);
  box-shadow:var(--sh2);
}
.pick-row h3{font-size:17px;font-weight:700;margin-bottom:4px;}
.pick-row p{font-size:14px;color:var(--ink-2);}
.pick-tier{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
}
.pick-tier i{color:var(--brand);}
.pick-tag{
  display:inline-flex;
  align-items:center;
  padding:5px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  background:var(--brand-10);
  color:var(--brand);
  white-space:nowrap;
}
.pick-tag.warm{
  background:linear-gradient(120deg,rgba(242,122,26,.14),rgba(245,185,66,.18));
  color:#B95A0B;
}

/* ============ FAQ ============ */
.faq-list{max-width:900px;}
.acc-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  margin-bottom:12px;
  overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.acc-item:hover{box-shadow:var(--sh1);}
.acc-btn{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  text-align:left;
  background:transparent;
  border:0;
  border-left:3px solid transparent;
  padding:18px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  cursor:pointer;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.acc-btn:hover{color:var(--brand);}
.acc-btn .chev{
  flex-shrink:0;
  font-size:14px;
  color:var(--ink-3);
  transition:transform .2s ease,color .2s ease;
}
.acc-btn:not(.collapsed){
  color:var(--brand);
  border-left-color:var(--brand);
  background:var(--brand-10);
}
.acc-btn:not(.collapsed) .chev{transform:rotate(180deg);color:var(--brand);}
.acc-body{
  padding:4px 22px 22px 25px;
  font-size:15px;
  color:var(--ink-2);
}

/* ============ CTA 面板 ============ */
.cta-panel{
  position:relative;
  overflow:hidden;
  background:var(--dark);
  border-radius:var(--r-xl);
  padding:56px;
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:40px;
  align-items:center;
  color:#fff;
}
.cta-panel::before{
  content:"";
  position:absolute;
  right:-80px;
  top:-60px;
  width:340px;
  height:340px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.10);
}
.cta-panel::after{
  content:"";
  position:absolute;
  left:-40px;
  bottom:-90px;
  width:260px;
  height:260px;
  border-radius:50%;
  background:rgba(14,107,168,.16);
}
.cta-panel > *{position:relative;z-index:1;}
.cta-panel h2{
  font-size:clamp(25px,2.6vw,33px);
  line-height:1.35;
  font-weight:700;
}
.cta-panel .cta-desc{
  margin-top:12px;
  font-size:16px;
  color:#C8D8E6;
}
.cta-points{
  margin-top:22px;
  display:grid;
  gap:10px;
}
.cta-points span{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:15px;
  color:#E4EEF6;
}
.cta-points i{color:var(--accent-2);}
.cta-btns{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
.btn-white{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  font-size:15px;
  font-weight:600;
  color:#fff;
  background:transparent;
  border:1px solid rgba(255,255,255,.55);
  border-radius:10px;
  transition:background .2s ease,transform .2s ease,border-color .2s ease;
}
.btn-white:hover{
  color:#fff;
  background:rgba(255,255,255,.12);
  border-color:#fff;
  transform:translateY(-2px);
}
.cta-side{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r-l);
  padding:26px;
}
.cta-side h3{font-size:18px;font-weight:700;margin-bottom:14px;}
.cta-side ul{display:grid;gap:10px;}
.cta-side li{
  display:flex;
  gap:10px;
  font-size:14px;
  color:#D5E3EE;
}
.cta-side li i{color:var(--accent-2);margin-top:5px;}

/* ============ 页脚 ============ */
.site-footer{
  background:#fff;
  border-top:1px solid var(--line);
  padding:56px 0 26px;
  margin-top:24px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:36px;
  padding-bottom:34px;
  border-bottom:1px solid var(--sep);
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:700;
  color:var(--brand);
  margin-bottom:14px;
}
.footer-about{
  font-size:14px;
  color:var(--ink-2);
  line-height:1.85;
  max-width:380px;
}
.footer-title{
  font-size:15px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:14px;
}
.footer-links{display:grid;gap:10px;}
.footer-links a{
  font-size:14px;
  color:var(--ink-2);
  transition:color .2s ease,padding-left .2s ease;
}
.footer-links a:hover{color:var(--brand);padding-left:3px;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  padding-top:22px;
  font-size:13px;
  color:var(--ink-3);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .nav-chip{padding:0 11px;font-size:13px;}
  .nav-card{gap:12px;padding:10px 16px;}
  .nav-actions .btn-ghost{padding:11px 16px;font-size:14px;}
  .nav-actions .btn-brand{padding:11px 18px;font-size:14px;}
}
@media (max-width:1100px){
  .nav-links{display:none;}
  .nav-actions{display:none;}
  .nav-toggle{display:inline-flex;}
}
@media (max-width:991.98px){
  .sec{padding:64px 0;}
  .hero-grid{grid-template-columns:1fr;padding:28px;}
  .dual-grid{grid-template-columns:1fr;}
  .dual-col.is-rec{transform:none;}
  .dual-col.is-rec:hover{transform:translateY(-4px);}
  .cta-panel{grid-template-columns:1fr;padding:40px 28px;}
  .flow-wrap{padding:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767.98px){
  body{font-size:15.5px;}
  .sec{padding:52px 0;}
  .page-hero{padding:18px 0 0;}
  .hero-grid{padding:24px 20px;gap:24px;}
  .pick-row{grid-template-columns:1fr;gap:12px;padding:18px 20px;}
  .pick-tag{justify-self:start;}
  .dual-col{padding:22px;}
  .flow-card{padding:18px 18px;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-panel{padding:32px 22px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:575.98px){
  .hero-btns{flex-direction:column;}
  .hero-btns .btn-brand,.hero-btns .btn-ghost{width:100%;}
  .cta-btns{flex-direction:column;}
  .cta-btns .btn-brand,.cta-btns .btn-white{width:100%;}
  .dual-list li{grid-template-columns:20px minmax(0,1fr);}
  .dl-v{grid-column:2;color:var(--ink-2);font-weight:500;}
  .tier-foot{flex-direction:column;align-items:flex-start;}
  .page-hero h1{font-size:27px;}
}

/* roulang page: category3 */
:root{
  --brand:#0E6BA8;
  --brand-hover:#0B5788;
  --brand-active:#094A73;
  --brand-tint:#E7F1F9;
  --brand-line:#BBD8EC;
  --accent:#F27A1A;
  --accent-soft:#FDF1E6;
  --green:#178F6B;
  --danger:#D9534F;
  --ink:#10161F;
  --ink-2:#4A5666;
  --ink-3:#7C8899;
  --line:#E2E9F1;
  --divider:#EEF3F8;
  --page:#F5F8FB;
  --card:#FFFFFF;
  --panel:#0B2A44;
  --tier-base:#7C8899;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:18px;
  --r-xl:24px;
  --sh1:0 2px 8px rgba(16,32,56,.05);
  --sh2:0 10px 30px rgba(16,32,56,.07);
  --sh3:0 18px 44px rgba(16,32,56,.10);
  --bs-primary:#0E6BA8;
  --bs-body-color:#10161F;
  --bs-body-bg:#F5F8FB;
  --bs-border-color:#E2E9F1;
  --bs-border-radius:14px;
  --bs-link-color:#0E6BA8;
  --bs-link-hover-color:#0B5788;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease}
a:hover{color:var(--brand-hover)}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;color:var(--ink)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1320px;margin:0 auto;padding:0 20px}
@media (max-width:1399px){.container{max-width:1140px}}
@media (max-width:1199px){.container{max-width:960px}}
@media (max-width:991px){.container{max-width:720px}}
@media (max-width:767px){.container{max-width:100%;padding:0 18px}}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:var(--page);padding:14px 0 12px}
.nav-card{
  display:flex;align-items:center;gap:18px;
  background:var(--card);border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--sh2);min-height:72px;padding:10px 24px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:10px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-size:16px;flex-shrink:0;
}
.brand-name{font-size:19px;font-weight:700;color:var(--brand);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:8px;flex:1;flex-wrap:wrap}
.nav-chip{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 14px;
  border-radius:10px;background:#EDF3F9;border:1px solid transparent;
  color:var(--ink-2);font-size:14px;font-weight:500;white-space:nowrap;
}
.nav-chip i{font-size:15px;color:var(--ink-3);transition:color .2s ease}
.nav-chip:hover{background:#fff;border-color:var(--brand-line);color:var(--brand);box-shadow:var(--sh1)}
.nav-chip:hover i{color:var(--brand)}
.nav-chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff}
.nav-chip.is-active i{color:#fff}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;height:42px;padding:0 18px;
  border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--brand);
  font-size:14px;font-weight:600;white-space:nowrap;
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-hover);background:var(--brand-tint)}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:42px;padding:0 20px;
  border-radius:10px;background:var(--brand);color:#fff;font-size:14px;font-weight:600;
  box-shadow:var(--sh1);border:1px solid var(--brand);white-space:nowrap;
}
.btn-brand:hover{background:var(--brand-hover);border-color:var(--brand-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--sh2)}
.btn-brand:active{transform:translateY(0);background:var(--brand-active)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--brand);font-size:18px;align-items:center;justify-content:center;margin-left:auto;
}
.nav-toggle:hover{background:var(--brand-tint)}
.mobile-nav{background:var(--panel);color:#fff;width:300px}
.mobile-nav .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.12);padding:18px 20px}
.mobile-nav .offcanvas-title{color:#fff;font-size:17px;font-weight:700}
.mobile-nav .offcanvas-body{padding:18px 20px 28px;display:flex;flex-direction:column;gap:10px}
.m-nav-item{
  display:flex;align-items:center;gap:10px;min-height:48px;padding:0 16px;border-radius:12px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1);
  color:#DCE7F1;font-size:15px;font-weight:500;
}
.m-nav-item i{color:#8FB8D6;width:18px;text-align:center}
.m-nav-item:hover{background:rgba(255,255,255,.14);color:#fff}
.m-nav-item.is-active{background:var(--brand);border-color:var(--brand);color:#fff}
.m-nav-item.is-active i{color:#fff}
.m-cta{margin-top:8px;height:48px;background:var(--accent);border-color:var(--accent);font-size:15px}
.m-cta:hover{background:#DD6A0E;border-color:#DD6A0E;color:#fff}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:14px;color:var(--ink-2);padding:22px 0 0;
}
.breadcrumb-bar a{color:var(--ink-2)}
.breadcrumb-bar a:hover{color:var(--brand)}
.breadcrumb-bar .sep{color:var(--ink-3)}
.breadcrumb-bar .current{color:var(--brand);font-weight:600}

/* ---------- Hero ---------- */
.page-hero{padding:18px 0 0}
.hero-card{
  position:relative;border-radius:20px;overflow:hidden;color:#fff;
  padding:56px 52px 52px;
  background-image:linear-gradient(100deg,rgba(9,35,57,.94) 0%,rgba(11,42,68,.82) 46%,rgba(11,42,68,.55) 100%),
                   url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  box-shadow:var(--sh3);
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;background:rgba(242,122,26,.16);
  border:1px solid rgba(242,122,26,.45);color:#FFCE9B;font-size:13px;font-weight:600;
}
.hero-card h1{
  color:#fff;font-size:clamp(32px,4vw,52px);line-height:1.25;font-weight:700;
  margin:18px 0 0;max-width:16em;
}
.hero-sub{color:#C6D8E6;font-size:17px;line-height:1.75;margin-top:16px;max-width:36em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:10px;border:1px solid var(--accent);
  background:var(--accent);color:#fff;font-size:16px;font-weight:600;box-shadow:var(--sh1);
}
.btn-accent:hover{background:#DD6A0E;border-color:#DD6A0E;color:#fff;transform:translateY(-2px);box-shadow:var(--sh2)}
.btn-accent:active{transform:translateY(0)}
.btn-light-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:10px;
  border:1px solid rgba(255,255,255,.38);background:rgba(255,255,255,.06);
  color:#fff;font-size:16px;font-weight:600;
}
.btn-light-ghost:hover{background:#fff;color:var(--panel);border-color:#fff}
.hero-facts{display:flex;flex-wrap:wrap;gap:14px 30px;margin-top:32px}
.hero-fact{display:flex;align-items:center;gap:9px;font-size:14px;color:#B9CEDE}
.hero-fact i{color:#7FD3B4;font-size:15px}
.hero-fact b{color:#fff;font-weight:700;font-variant-numeric:tabular-nums}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-alt{background:var(--card);border-top:1px solid var(--divider);border-bottom:1px solid var(--divider)}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:5px 13px;border-radius:999px;
  background:var(--brand-tint);color:var(--brand);font-size:13px;font-weight:600;
}
.section-head h2{font-size:clamp(24px,2.4vw,34px);line-height:1.35;margin-top:16px}
.section-head p{color:var(--ink-2);font-size:16px;margin-top:12px}

/* ---------- Zigzag ---------- */
.zigzag{display:flex;flex-direction:column;gap:88px}
.zz-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.zz-row.invert .zz-media{order:2}
.zz-media{position:relative;border-radius:20px;overflow:hidden;box-shadow:var(--sh2)}
.zz-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;outline:1px solid rgba(16,32,56,.06);outline-offset:-1px}
.zz-media::after{
  content:"";position:absolute;inset:0;border-radius:20px;
  box-shadow:inset 0 0 0 1px rgba(16,32,56,.06);
}
.zz-step{
  display:inline-flex;align-items:center;gap:8px;padding:5px 13px;border-radius:999px;
  background:#fff;border:1px solid var(--brand-line);color:var(--brand);
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
}
.zz-body h2{font-size:clamp(22px,2.2vw,30px);line-height:1.4;margin-top:16px}
.zz-body p{color:var(--ink-2);font-size:16px;margin-top:14px}
.check-list{margin-top:20px;display:flex;flex-direction:column;gap:11px}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink)}
.check-list li i{color:var(--green);font-size:15px;margin-top:6px;flex-shrink:0}
.btn-soft{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 22px;margin-top:26px;
  border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--brand);
  font-size:15px;font-weight:600;
}
.btn-soft:hover{border-color:var(--brand);background:var(--brand-tint);color:var(--brand-hover);transform:translateY(-1px)}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand)}
.btn-text i{font-size:13px;transition:transform .2s ease}
.btn-text:hover i{transform:translateX(4px)}

/* ---------- 分隔带 ---------- */
.band{padding:0 0 88px}
.band-inner{
  background:var(--brand-tint);border:1px solid var(--brand-line);border-radius:20px;
  padding:36px 40px;display:flex;flex-wrap:wrap;align-items:center;gap:24px 40px;justify-content:space-between;
}
.band-text{font-size:17px;color:var(--brand-active);font-weight:600;max-width:46em;line-height:1.7}
.band-tags{display:flex;flex-wrap:wrap;gap:10px}
.band-tags span{
  display:inline-flex;align-items:center;gap:7px;padding:7px 15px;border-radius:999px;
  background:#fff;border:1px solid var(--brand-line);color:var(--brand);font-size:13px;font-weight:600;
}
.band-tags span i{color:var(--green);font-size:12px}

/* ---------- 训练节奏数据卡 ---------- */
.rhythm-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.rhythm-card{
  background:var(--card);border:1px solid var(--line);border-radius:16px;
  padding:28px 24px;box-shadow:var(--sh2);transition:transform .2s ease,box-shadow .2s ease;
}
.rhythm-card:hover{transform:translateY(-4px);box-shadow:var(--sh3)}
.rhythm-num{
  font-size:34px;font-weight:700;color:var(--brand);line-height:1.15;
  font-variant-numeric:tabular-nums;display:flex;align-items:baseline;gap:4px;
}
.rhythm-num small{font-size:14px;font-weight:600;color:var(--ink-3)}
.rhythm-card h3{font-size:17px;margin-top:12px;font-weight:600}
.rhythm-card p{font-size:14px;color:var(--ink-3);margin-top:8px;line-height:1.7}

/* ---------- 训练支持 ---------- */
.support-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:28px}
.support-card{
  background:var(--card);border:1px solid var(--line);border-radius:18px;
  padding:34px 32px;box-shadow:var(--sh2);
}
.support-card.dark{
  background:var(--panel);border-color:var(--panel);color:#D6E4EF;box-shadow:var(--sh3);
}
.support-icon{
  width:44px;height:44px;border-radius:12px;background:var(--brand-tint);color:var(--brand);
  display:grid;place-items:center;font-size:18px;
}
.support-card.dark .support-icon{background:rgba(255,255,255,.12);color:#8FD0F0}
.support-card h3{font-size:20px;margin-top:20px}
.support-card.dark h3{color:#fff}
.support-card p{font-size:15px;color:var(--ink-2);margin-top:12px}
.support-card.dark p{color:#A9C1D4}
.support-list{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.support-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-2)}
.support-card.dark .support-list li{color:#C3D6E4}
.support-list li i{color:var(--green);margin-top:6px;font-size:14px;flex-shrink:0}
.support-card.dark .support-list li i{color:#F5B942}

/* ---------- FAQ ---------- */
.faq-acc{max-width:920px}
.faq-acc .accordion-item{
  border:1px solid var(--line);border-radius:14px;background:#fff;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--sh1);
}
.faq-acc .accordion-item:last-child{margin-bottom:0}
.faq-acc .accordion-button{
  display:flex;align-items:center;gap:16px;
  font-size:17px;font-weight:600;color:var(--ink);background:#fff;
  padding:20px 24px;box-shadow:none;border-radius:14px;
}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--brand);background:#fff;box-shadow:none;
  border-left:3px solid var(--brand);
}
.faq-acc .accordion-button:focus{box-shadow:none;border-color:var(--brand-line)}
.faq-acc .accordion-button::after{display:none}
.faq-icon{position:relative;width:18px;height:18px;margin-left:auto;flex-shrink:0}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:#9AA9B8;border-radius:2px;transition:transform .2s ease,background-color .2s ease,opacity .2s ease;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-acc .accordion-button:not(.collapsed) .faq-icon::before{background:var(--brand)}
.faq-acc .accordion-button:not(.collapsed) .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-acc .accordion-body{padding:0 24px 22px;font-size:15px;color:var(--ink-2);line-height:1.85}

/* ---------- CTA ---------- */
.cta-section{padding:0 0 88px}
.cta-panel{
  position:relative;overflow:hidden;background:var(--panel);border-radius:24px;
  padding:56px 56px;color:#D6E4EF;display:grid;grid-template-columns:1.25fr .75fr;gap:44px;align-items:center;
}
.cta-panel::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:linear-gradient(115deg,transparent 0 46%,#fff 46% 47%,transparent 47% 100%),
                   linear-gradient(65deg,transparent 0 66%,#fff 66% 67%,transparent 67% 100%);
  background-size:420px 420px,520px 520px;
}
.cta-panel > *{position:relative}
.cta-panel h2{color:#fff;font-size:clamp(24px,2.4vw,32px);line-height:1.4}
.cta-panel p{color:#A9C1D4;font-size:16px;margin-top:14px}
.cta-checks{margin-top:22px;display:flex;flex-direction:column;gap:11px}
.cta-checks li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:#C3D6E4}
.cta-checks li i{color:#7FD3B4;margin-top:6px;font-size:14px;flex-shrink:0}
.cta-actions{display:flex;flex-direction:column;gap:14px}
.cta-actions .btn-accent,.cta-actions .btn-light-ghost{width:100%}
.cta-note{font-size:13px;color:#8CA6BA;text-align:center;font-variant-numeric:tabular-nums}

/* ---------- 页脚 ---------- */
.site-footer{background:#081F33;color:#9FB6C8;padding:64px 0 28px;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:19px;font-weight:700}
.footer-brand .brand-mark{background:var(--brand)}
.footer-about{font-size:14px;line-height:1.85;color:#8CA6BA;margin-top:18px;max-width:34em}
.footer-title{font-size:16px;color:#fff;font-weight:600;margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:#9FB6C8}
.footer-links a:hover{color:#fff}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#7E97AC;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-links{gap:6px}
  .nav-chip{padding:0 11px;font-size:13px}
  .rhythm-grid{grid-template-columns:repeat(2,1fr)}
  .support-grid{grid-template-columns:1fr}
}
@media (max-width:991px){
  .nav-links,.nav-actions{display:none}
  .nav-toggle{display:inline-flex}
  .nav-card{padding:10px 18px;min-height:68px}
  .section{padding:64px 0}
  .zigzag{gap:64px}
  .zz-row{grid-template-columns:1fr;gap:28px}
  .zz-row.invert .zz-media{order:0}
  .band{padding-bottom:64px}
  .band-inner{padding:28px 26px}
  .cta-panel{grid-template-columns:1fr;gap:32px;padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .hero-card{padding:44px 32px}
}
@media (max-width:767px){
  body{font-size:15.5px;line-height:1.8}
  .section{padding:52px 0}
  .zigzag{gap:52px}
  .rhythm-grid{grid-template-columns:1fr;gap:16px}
  .hero-card{padding:34px 22px;border-radius:18px}
  .hero-card h1{font-size:clamp(26px,7vw,34px)}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn-accent,.hero-actions .btn-light-ghost{width:100%}
  .hero-facts{gap:10px 22px;margin-top:26px}
  .band{padding-bottom:52px}
  .band-inner{border-radius:16px}
  .cta-panel{padding:32px 22px;border-radius:20px}
  .cta-actions .btn-accent,.cta-actions .btn-light-ghost{height:46px;font-size:15px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .support-card{padding:26px 22px}
  .faq-acc .accordion-button{padding:17px 18px;font-size:15.5px}
  .faq-acc .accordion-body{padding:0 18px 18px}
  .breadcrumb-bar{padding-top:16px}
}
@media (max-width:520px){
  .rhythm-card{padding:22px 20px}
  .zz-media img{border-radius:16px}
  .zz-media::after{border-radius:16px}
}

/* roulang page: category4 */
:root{
  --brand:#0E6BA8;
  --brand-hover:#0B5788;
  --brand-active:#094A73;
  --brand-tint:#E7F1F9;
  --brand-soft:#EDF3F9;
  --brand-line:#BBD8EC;
  --accent:#F27A1A;
  --accent-2:#F5B942;
  --accent-hover:#DA6A11;
  --green:#178F6B;
  --danger:#D9534F;
  --ink:#10161F;
  --ink-2:#4A5666;
  --ink-3:#7C8899;
  --border:#E2E9F1;
  --divider:#EEF3F8;
  --bg:#F5F8FB;
  --card:#FFFFFF;
  --dark:#0B2A44;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:18px;
  --r-xl:24px;
  --r-pill:999px;
  --sh1:0 2px 8px rgba(16,32,56,.05);
  --sh2:0 10px 30px rgba(16,32,56,.07);
  --sh3:0 18px 44px rgba(16,32,56,.10);
  --bs-primary:#0E6BA8;
  --bs-body-color:#10161F;
  --bs-body-bg:#F5F8FB;
  --bs-border-color:#E2E9F1;
  --bs-border-radius:14px;
  --bs-link-color:#0E6BA8;
  --bs-link-hover-color:#0B5788;
}

*,*::before,*::after{ box-sizing:border-box; }

html{ scroll-behavior:smooth; }

body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img{ max-width:100%; display:block; height:auto; }
a{ color:var(--brand); text-decoration:none; transition:color .2s ease,border-color .2s ease,background-color .2s ease; }
a:hover{ color:var(--brand-hover); }
button{ font-family:inherit; }
ul,ol{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4,p{ margin:0; }
:focus-visible{ outline:2px solid var(--brand); outline-offset:2px; border-radius:4px; }
.num,.stat-num,.fc-num{ font-variant-numeric:tabular-nums; font-feature-settings:"tnum"; }

.container{
  width:100%;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:1400px){ .container{ max-width:1320px; } }
@media (min-width:1200px) and (max-width:1399.98px){ .container{ max-width:1140px; } }
@media (min-width:992px) and (max-width:1199.98px){ .container{ max-width:960px; } }
@media (min-width:768px) and (max-width:991.98px){ .container{ max-width:720px; } }
@media (max-width:767.98px){ .container{ max-width:100%; padding-left:18px; padding-right:18px; } }

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  padding:12px 0;
  background:rgba(245,248,251,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(226,233,241,.8);
}
.nav-card{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:72px;
  padding:0 24px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:16px;
  box-shadow:var(--sh2);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--brand);
}
.brand:hover{ color:var(--brand-hover); }
.brand-mark{
  width:36px;
  height:36px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  background:var(--brand);
  color:#fff;
  font-size:16px;
  flex:0 0 auto;
}
.brand-name{
  font-size:19px;
  font-weight:700;
  color:var(--brand);
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:8px;
  flex:1 1 auto;
  min-width:0;
}
.nav-chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:42px;
  padding:0 14px;
  border-radius:var(--r-sm);
  background:var(--brand-soft);
  border:1px solid transparent;
  color:var(--ink-2);
  font-size:15px;
  font-weight:500;
  white-space:nowrap;
}
.nav-chip i{ font-size:15px; color:var(--ink-3); transition:color .2s ease; }
.nav-chip:hover{
  background:#fff;
  border-color:var(--brand-line);
  color:var(--brand);
}
.nav-chip:hover i{ color:var(--brand); }
.nav-chip.is-active{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
  box-shadow:var(--sh1);
}
.nav-chip.is-active i{ color:#fff; }
.nav-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:42px;
  padding:0 18px;
  border-radius:var(--r-sm);
  border:1px solid var(--border);
  background:#fff;
  color:var(--brand);
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
}
.btn-ghost:hover{
  border-color:var(--brand);
  color:var(--brand-hover);
  background:#fff;
}
.btn-brand{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--r-sm);
  border:1px solid var(--brand);
  background:var(--brand);
  color:#fff;
  font-size:15px;
  font-weight:600;
  box-shadow:var(--sh1);
  white-space:nowrap;
  transition:transform .2s ease, background-color .2s ease, box-shadow .2s ease;
}
.btn-brand:hover{
  background:var(--brand-hover);
  border-color:var(--brand-hover);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:var(--sh2);
}
.btn-brand:active{ transform:translateY(0); background:var(--brand-active); }
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  border-radius:var(--r-sm);
  border:1px solid var(--border);
  background:#fff;
  color:var(--brand);
  font-size:18px;
  margin-left:auto;
}

/* 移动抽屉 */
.mobile-nav{
  background:var(--dark);
  color:#fff;
  width:min(320px,86vw);
  border:0;
}
.mobile-nav-head{
  display:flex;
  align-items:center;
  gap:10px;
  padding:22px 20px 16px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.mobile-nav-head .brand-mark{ background:var(--brand); }
.mobile-nav-head span{ font-size:17px; font-weight:700; }
.mobile-nav-body{ padding:16px 16px 24px; }
.mobile-link{
  display:flex;
  align-items:center;
  gap:12px;
  min-height:48px;
  padding:12px 14px;
  margin-bottom:10px;
  border-radius:var(--r-sm);
  background:rgba(255,255,255,.07);
  color:rgba(255,255,255,.86);
  font-size:15px;
  font-weight:500;
}
.mobile-link i{ color:#7FBEE6; width:18px; text-align:center; }
.mobile-link:hover{ background:rgba(255,255,255,.13); color:#fff; }
.mobile-link.is-active{ background:var(--brand); color:#fff; }
.mobile-link.is-active i{ color:#fff; }
.mobile-cta{
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:48px;
  margin-top:8px;
  border-radius:var(--r-sm);
  background:var(--accent);
  color:#fff;
  font-size:16px;
  font-weight:700;
}
.mobile-cta:hover{ background:var(--accent-hover); color:#fff; }

/* ---------- 通用板块 ---------- */
.section{ padding:88px 0; }
.section-tight{ padding:64px 0; }
.section-head{ margin-bottom:40px; }
.sec-title{
  font-size:32px;
  line-height:1.35;
  font-weight:700;
  color:var(--ink);
}
.sec-sub{
  margin-top:12px;
  font-size:16px;
  color:var(--ink-2);
}
.sec-head-row{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}

/* 面包屑 */
.breadcrumb-line{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:var(--ink-3);
  margin-bottom:26px;
  flex-wrap:wrap;
}
.breadcrumb-line a{ color:var(--ink-2); }
.breadcrumb-line a:hover{ color:var(--brand); }
.breadcrumb-line .sep{ color:#C3CEDA; }
.breadcrumb-line .current{ color:var(--brand); font-weight:600; }

/* ---------- Hero ---------- */
.hero-section{ padding:36px 0 72px; }
.hero-grid{
  display:grid;
  grid-template-columns:55fr 45fr;
  gap:48px;
  align-items:center;
}
.pill-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  background:var(--brand-tint);
  border:1px solid var(--brand-line);
  color:var(--brand);
  font-size:13px;
  font-weight:600;
}
.pill-badge .dot{
  width:7px; height:7px; border-radius:50%;
  background:var(--green);
  box-shadow:0 0 0 3px rgba(23,143,107,.15);
}
.hero-copy h1{
  margin-top:20px;
  font-size:clamp(32px,4vw,52px);
  line-height:1.25;
  font-weight:700;
  color:var(--ink);
}
.hero-sub{
  margin-top:16px;
  font-size:17px;
  line-height:1.8;
  color:var(--ink-2);
  max-width:560px;
}
.hero-cta{
  display:flex;
  align-items:center;
  gap:14px;
  margin-top:28px;
  flex-wrap:wrap;
}
.btn-accent{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--r-sm);
  border:1px solid var(--accent);
  background:var(--accent);
  color:#fff;
  font-size:16px;
  font-weight:700;
  box-shadow:var(--sh1);
  transition:transform .2s ease, background-color .2s ease, box-shadow .2s ease;
}
.btn-accent:hover{
  background:var(--accent-hover);
  border-color:var(--accent-hover);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:var(--sh2);
}
.btn-accent:active{ transform:translateY(0); }
.btn-second{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-sm);
  border:1px solid var(--border);
  background:#fff;
  color:var(--brand);
  font-size:16px;
  font-weight:600;
  box-shadow:var(--sh1);
  transition:transform .2s ease, border-color .2s ease, color .2s ease;
}
.btn-second:hover{
  border-color:var(--brand);
  color:var(--brand-hover);
  transform:translateY(-2px);
}
.trust-row{
  display:flex;
  align-items:center;
  gap:24px;
  margin-top:26px;
  flex-wrap:wrap;
}
.trust-row span{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:13px;
  color:var(--ink-2);
}
.trust-row i{ color:var(--brand); font-size:13px; }

.hero-media{ position:relative; }
.hero-media img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  border-radius:20px;
  box-shadow:var(--sh2);
  border:1px solid rgba(16,32,56,.06);
}
.hero-media::after{
  content:"";
  position:absolute;
  inset:0;
  border-radius:20px;
  background:linear-gradient(200deg,rgba(14,107,168,.14),rgba(11,42,68,.05) 55%,rgba(255,255,255,0) 80%);
  pointer-events:none;
}
.float-card{
  position:absolute;
  right:18px;
  bottom:18px;
  z-index:2;
  background:#fff;
  border-radius:12px;
  padding:14px 18px;
  box-shadow:var(--sh2);
  border:1px solid var(--border);
  min-width:150px;
}
.fc-num{
  display:block;
  font-size:26px;
  font-weight:700;
  color:var(--brand);
  line-height:1.2;
}
.fc-label{
  display:block;
  font-size:12px;
  color:var(--ink-3);
  margin-top:2px;
}

/* ---------- 数据卡 ---------- */
.stat-strip{ padding:0 0 88px; }
.stat-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.stat-card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  padding:28px;
  box-shadow:var(--sh2);
  transition:transform .2s ease, box-shadow .2s ease;
}
.stat-card:hover{ transform:translateY(-4px); box-shadow:var(--sh3); }
.stat-value{
  display:flex;
  align-items:baseline;
  gap:6px;
  color:var(--brand);
}
.stat-num{
  font-size:clamp(34px,3.4vw,46px);
  font-weight:700;
  line-height:1.1;
  color:var(--ink);
}
.stat-unit{ font-size:15px; font-weight:600; color:var(--brand); }
.stat-label{
  margin-top:10px;
  font-size:15px;
  font-weight:600;
  color:var(--ink);
}
.stat-note{
  margin-top:6px;
  font-size:14px;
  line-height:1.7;
  color:var(--ink-3);
}

/* ---------- 数据瀑布 ---------- */
.waterfall-wrap{ background:#fff; border-top:1px solid var(--border); border-bottom:1px solid var(--border); }
.waterfall{
  columns:2;
  column-gap:24px;
}
.wf-card{
  break-inside:avoid;
  margin-bottom:24px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh1);
  transition:transform .2s ease, box-shadow .2s ease;
}
.wf-card:hover{ transform:translateY(-4px); box-shadow:var(--sh3); }
.wf-media img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-bottom:1px solid rgba(16,32,56,.06);
}
.wf-body{ padding:24px 26px 26px; }
.wf-tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:var(--r-pill);
  background:var(--brand-tint);
  color:var(--brand);
  font-size:13px;
  font-weight:600;
}
.wf-tag.green{ background:rgba(23,143,107,.1); color:var(--green); }
.wf-title{
  margin-top:14px;
  font-size:21px;
  line-height:1.5;
  font-weight:600;
  color:var(--ink);
}
.wf-text{
  margin-top:10px;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-2);
}
.wf-list{ margin-top:14px; }
.wf-list li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:14px;
  line-height:1.7;
  color:var(--ink-2);
  padding:6px 0;
}
.wf-list li i{ color:var(--green); font-size:14px; margin-top:5px; }
.wf-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid var(--divider);
  font-size:13px;
  color:var(--ink-3);
  flex-wrap:wrap;
}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
  border-bottom:0 solid transparent;
}
.link-arrow:hover{ color:var(--brand-hover); border-bottom-width:2px; }

/* ---------- 场景 ---------- */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
  margin-top:32px;
}
.scene-card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  padding:26px;
  box-shadow:var(--sh1);
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.scene-card:hover{ transform:translateY(-4px); box-shadow:var(--sh3); border-color:var(--brand-line); }
.scene-icon{
  width:46px; height:46px;
  display:flex; align-items:center; justify-content:center;
  border-radius:12px;
  background:var(--brand-tint);
  color:var(--brand);
  font-size:19px;
}
.scene-card h3{
  margin-top:16px;
  font-size:19px;
  font-weight:600;
  color:var(--ink);
}
.scene-card p{
  margin-top:8px;
  font-size:14px;
  line-height:1.75;
  color:var(--ink-2);
}
.chip-cloud{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}
.chip{
  display:inline-flex;
  align-items:center;
  height:34px;
  padding:0 16px;
  border-radius:var(--r-pill);
  background:#fff;
  border:1px solid var(--border);
  font-size:14px;
  color:var(--ink-2);
  transition:border-color .2s ease, color .2s ease, background-color .2s ease;
}
.chip:hover{ border-color:var(--brand); color:var(--brand); background:var(--brand-tint); }

/* ---------- 流程 ---------- */
.flow-band{ background:#fff; border-top:1px solid var(--border); border-bottom:1px solid var(--border); }
.flow-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  margin-top:36px;
}
.flow-step{
  position:relative;
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  padding:26px 24px;
  transition:transform .2s ease, box-shadow .2s ease;
}
.flow-step:hover{ transform:translateY(-4px); box-shadow:var(--sh2); }
.flow-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px; height:38px;
  border-radius:10px;
  background:var(--brand);
  color:#fff;
  font-size:15px;
  font-weight:700;
}
.flow-step h3{
  margin-top:16px;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
}
.flow-step p{
  margin-top:8px;
  font-size:14px;
  line-height:1.75;
  color:var(--ink-2);
}

/* ---------- 口径说明 ---------- */
.spec-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
  margin-top:32px;
}
.spec-card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  padding:28px;
  box-shadow:var(--sh1);
}
.spec-card h3{
  font-size:20px;
  font-weight:600;
  color:var(--ink);
}
.spec-table{ margin-top:18px; }
.spec-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:13px 0;
  border-bottom:1px dashed var(--divider);
  font-size:15px;
}
.spec-row:last-child{ border-bottom:0; }
.spec-row span:first-child{ color:var(--ink-2); }
.spec-row strong{ color:var(--brand); font-weight:700; }
.check-list{ margin-top:16px; }
.check-list li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:15px;
  line-height:1.75;
  color:var(--ink-2);
  padding:7px 0;
}
.check-list li i{ color:var(--green); margin-top:6px; font-size:14px; }

/* ---------- FAQ ---------- */
.faq-acc{ margin-top:34px; }
.faq-acc .accordion-item{
  border:1px solid var(--border);
  border-radius:var(--r-md);
  background:#fff;
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--sh1);
}
.faq-acc .accordion-item:has(.accordion-button:not(.collapsed)){
  box-shadow:inset 3px 0 0 var(--brand), var(--sh1);
  border-color:var(--brand-line);
}
.faq-acc .accordion-button{
  background:#fff;
  color:var(--ink);
  font-size:17px;
  font-weight:600;
  padding:20px 22px;
  box-shadow:none;
  border:0;
}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--brand);
  background:#fff;
  box-shadow:none;
}
.faq-acc .accordion-button:focus{ box-shadow:none; }
.faq-acc .accordion-button::after{
  width:18px;
  height:18px;
  margin-left:18px;
  flex:0 0 auto;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%230E6BA8' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M3 6l5 5 5-5'/%3E%3C/svg%3E");
  background-size:18px 18px;
  background-position:center;
  background-repeat:no-repeat;
  transition:transform .2s ease;
}
.faq-acc .accordion-button:not(.collapsed)::after{ transform:rotate(180deg); }
.faq-acc .accordion-body{
  padding:0 22px 22px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-2);
}

/* ---------- CTA ---------- */
.cta-wrap{ padding:0 0 96px; }
.cta-panel{
  position:relative;
  overflow:hidden;
  background:var(--dark);
  border-radius:var(--r-xl);
  padding:56px;
  color:#fff;
}
.cta-panel::before{
  content:"";
  position:absolute;
  right:-80px;
  top:-80px;
  width:420px;
  height:420px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.06);
  box-shadow:inset 0 0 0 60px rgba(255,255,255,.02);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  display:grid;
  grid-template-columns:1.35fr 1fr;
  gap:40px;
  align-items:center;
}
.cta-panel h2{
  font-size:clamp(26px,2.6vw,34px);
  line-height:1.35;
  font-weight:700;
  color:#fff;
}
.cta-panel .cta-desc{
  margin-top:14px;
  font-size:16px;
  color:rgba(255,255,255,.72);
}
.cta-list{
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
  margin-top:22px;
}
.cta-list span{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:rgba(255,255,255,.82);
}
.cta-list i{ color:var(--accent-2); font-size:14px; }
.cta-actions{
  display:flex;
  flex-direction:column;
  gap:14px;
  align-items:stretch;
}
.btn-light-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-sm);
  border:1px solid rgba(255,255,255,.4);
  background:transparent;
  color:#fff;
  font-size:16px;
  font-weight:600;
  transition:background-color .2s ease, border-color .2s ease, transform .2s ease;
}
.btn-light-ghost:hover{
  background:rgba(255,255,255,.12);
  border-color:#fff;
  color:#fff;
  transform:translateY(-2px);
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--dark);
  color:rgba(255,255,255,.72);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:19px;
  font-weight:700;
}
.footer-about{
  margin-top:16px;
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.62);
  max-width:420px;
}
.footer-title{
  font-size:16px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-links a{
  font-size:14px;
  color:rgba(255,255,255,.7);
}
.footer-links a:hover{ color:#8CC8EA; }
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:rgba(255,255,255,.55);
}

/* ---------- 断点 ---------- */
@media (max-width:1199.98px){
  .nav-chip{ padding:0 11px; font-size:14px; }
  .nav-chip i{ font-size:14px; }
  .brand-name{ font-size:18px; }
  .section{ padding:76px 0; }
}

@media (max-width:991.98px){
  .nav-links,
  .nav-actions{ display:none; }
  .nav-toggle{ display:inline-flex; }
  .nav-card{ padding:0 16px; gap:12px; }
  .hero-grid{ grid-template-columns:1fr; gap:34px; }
  .hero-sub{ max-width:none; }
  .stat-grid{ grid-template-columns:1fr; }
  .scene-grid{ grid-template-columns:1fr; }
  .flow-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); }
  .spec-grid{ grid-template-columns:1fr; }
  .cta-inner{ grid-template-columns:1fr; gap:28px; }
  .cta-panel{ padding:40px 32px; }
  .footer-grid{ grid-template-columns:1fr 1fr; gap:32px; }
  .waterfall{ columns:2; }
}

@media (max-width:767.98px){
  .section{ padding:56px 0; }
  .section-tight{ padding:44px 0; }
  .hero-section{ padding:24px 0 48px; }
  .stat-strip{ padding-bottom:56px; }
  .sec-title{ font-size:26px; }
  .waterfall{ columns:1; }
  .flow-grid{ grid-template-columns:1fr; }
  .cta-wrap{ padding-bottom:64px; }
  .cta-panel{ padding:32px 22px; border-radius:var(--r-lg); }
  .cta-actions{ width:100%; }
  .footer-grid{ grid-template-columns:1fr; }
  .float-card{ right:12px; bottom:12px; padding:12px 14px; min-width:132px; }
  .fc-num{ font-size:22px; }
}

@media (max-width:575.98px){
  .hero-cta .btn-accent,
  .hero-cta .btn-second{ width:100%; }
  .btn-brand,.btn-ghost{ font-size:14px; }
  .wf-body{ padding:20px; }
  .stat-card{ padding:22px; }
  .spec-card{ padding:22px; }
  .trust-row{ gap:14px; }
  .spec-row{ font-size:14px; }
}