/* roulang page: index */
:root{
  --brand-deep:#0C2B26;
  --brand:#1F7A6B;
  --brand-mid:#14524A;
  --brand-light:#DCEBE6;
  --action:#E4791C;
  --action-light:#FBEBD8;
  --paper:#F6F3EC;
  --card:#FFFFFF;
  --ink:#16211F;
  --ink-2:#4A5A56;
  --line:#E2E0D8;
  --on-dark:#EAF3F0;
  --ok:#2E9E6B;
  --warn:#D97706;
  --r-card:16px;
  --r-small:12px;
  --r-img:14px;
  --r-btn:10px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(12,43,38,.05);
  --sh-2:0 10px 26px -14px rgba(12,43,38,.22);
  --gutter:88px;
  --bs-primary:#1F7A6B;
  --bs-primary-rgb:31,122,107;
  --bs-body-color:#16211F;
  --bs-body-bg:#F6F3EC;
  --bs-border-color:#E2E0D8;
  --bs-link-color:#1F7A6B;
  --bs-link-hover-color:#14524A;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img);background:var(--brand-light)}
img:not([src]),img[src=""]{visibility:hidden}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-mid)}
button{font-family:inherit}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--ink);line-height:1.3}
h1{font-size:38px;letter-spacing:-.02em}
h2{font-size:27px}
h3{font-size:21px}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
ul,ol{margin:0 0 1.15em;padding-left:1.25em}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container-x{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
.section{padding:var(--gutter) 0}
.section-tight{padding:56px 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand-mid);letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px}
.section-head .eyebrow::before{content:"";width:20px;height:3px;border-radius:2px;background:var(--brand)}
.section-head p{margin:8px 0 0;color:var(--ink-2);font-size:15px;max-width:56ch}
.link-more{font-size:14px;font-weight:600;white-space:nowrap}
.link-more i{transition:transform .18s ease;margin-left:4px}
.link-more:hover i{transform:translateX(3px)}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:1040;padding:14px 0;background:rgba(246,243,236,.92);backdrop-filter:blur(8px)}
.nav-panel{
  display:flex;align-items:center;gap:18px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:10px 16px;
  box-shadow:var(--sh-1);
}
.brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.brand:hover{color:var(--ink)}
.brand-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--brand) 0%,var(--brand-mid) 100%);color:#fff;display:grid;place-items:center;font-size:17px}
.nav-links{display:flex;align-items:center;gap:8px;flex:1;justify-content:center}
.nav-chip{
  display:inline-flex;align-items:center;gap:8px;
  height:38px;padding:0 14px;
  background:var(--card);border:1px solid var(--line);border-radius:10px;
  color:var(--ink-2);font-size:14.5px;font-weight:600;
  transition:all .18s ease;
}
.nav-chip i{font-size:15px;color:var(--brand-mid);transition:transform .18s ease}
.nav-chip:hover{background:var(--brand-light);border-color:var(--brand);color:var(--brand-mid)}
.nav-chip:hover i{transform:translateX(-2px)}
.nav-chip.active{background:var(--brand-light);border-color:var(--brand);color:var(--brand-mid)}
.nav-cta{display:flex;align-items:center;gap:10px}
.nav-toggle{display:none;width:40px;height:40px;border:1px solid var(--line);background:var(--card);border-radius:10px;color:var(--brand-mid);font-size:17px}
.nav-drawer{display:none;margin-top:12px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:14px;box-shadow:var(--sh-1)}
.nav-drawer.open{display:block}
.drawer-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.drawer-item{display:flex;align-items:center;gap:10px;padding:12px;border:1px solid var(--line);border-radius:var(--r-small);font-size:14.5px;font-weight:600;color:var(--ink-2)}
.drawer-item i{color:var(--brand-mid)}
.drawer-item.active{background:var(--brand-light);border-color:var(--brand);color:var(--brand-mid)}

/* ---------- 按钮 ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:transform .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease;
}
.btn-main{background:var(--brand);color:#fff}
.btn-main:hover{background:var(--brand-mid);color:#fff;transform:translateY(-1px)}
.btn-main:active{transform:translateY(0)}
.btn-action{background:var(--action);color:#fff}
.btn-action:hover{background:#cf6a13;color:#fff;transform:translateY(-1px)}
.btn-action:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-mid)}
.btn-white{background:#fff;color:var(--brand-mid)}
.btn-white:hover{background:#fff;color:var(--brand-deep);transform:translateY(-1px)}
.btn-outline-white{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn-outline-white:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-sm-x{padding:10px 16px;font-size:14px}
.btn-block{width:100%}

/* ---------- Hero ---------- */
.hero{
  background:linear-gradient(180deg,var(--paper) 0%,var(--brand-light) 100%);
  padding:64px 0 var(--gutter);
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.hero-tag{display:inline-flex;align-items:center;gap:8px;background:var(--action-light);color:#8a4a10;border:1px solid #f0d3b0;border-radius:var(--r-badge);padding:6px 12px;font-size:13px;font-weight:600;margin-bottom:18px}
.hero h1{margin-bottom:16px}
.hero .lede{font-size:17px;color:var(--ink-2);max-width:34em;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:12px}
.meta-line{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;color:var(--ink-2);margin-bottom:26px}
.trust-row{display:flex;flex-wrap:wrap;gap:10px}
.trust-chip{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:var(--r-badge);padding:7px 12px;font-size:13px;color:var(--ink-2);font-weight:600;box-shadow:var(--sh-1)}
.trust-chip i{color:var(--brand)}
.hero-visual{position:relative}
.hero-shot{position:relative;aspect-ratio:16/10;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-2);background:var(--brand-light)}
.hero-shot img{width:100%;height:100%;object-fit:cover;border-radius:0}
.hero-shot::after{content:"";position:absolute;inset:0;background:linear-gradient(160deg,rgba(31,122,107,.12) 0%,rgba(246,243,236,.36) 100%);pointer-events:none}
.hero-float{
  position:absolute;left:-18px;bottom:-22px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-small);padding:14px 16px;box-shadow:var(--sh-2);min-width:190px;
}
.hero-float .k{font-size:12.5px;color:var(--ink-2);margin-bottom:2px}
.hero-float .v{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:20px;font-weight:700;color:var(--brand-mid)}

/* ---------- 指标条 ---------- */
.metric-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden}
.metric{padding:24px 22px;border-right:1px solid var(--line)}
.metric:last-child{border-right:0}
.metric .num{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:26px;font-weight:700;color:var(--brand-mid);line-height:1.2}
.metric .num em{font-style:normal;color:var(--action)}
.metric .lab{font-size:13.5px;color:var(--ink-2);margin-top:4px}

/* ---------- 价值卡 ---------- */
.value-grid{display:grid;grid-template-columns:7fr 5fr;gap:22px}
.card-x{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:box-shadow .18s ease,border-color .18s ease,transform .18s ease}
.card-x:hover{box-shadow:var(--sh-2);border-color:rgba(31,122,107,.4);transform:translateY(-2px)}
.value-main{padding:28px;display:flex;flex-direction:column;gap:16px}
.value-main .icon-badge{width:48px;height:48px;border-radius:12px;background:var(--brand-light);color:var(--brand-mid);display:grid;place-items:center;font-size:22px}
.value-main .shot{aspect-ratio:16/9;border-radius:var(--r-small);overflow:hidden;border:1px solid var(--line);margin-top:auto}
.value-main .shot img{width:100%;height:100%;object-fit:cover;border-radius:0}
.value-side{display:grid;gap:22px}
.value-side .card-x{padding:22px;display:flex;gap:16px;align-items:flex-start}
.value-side .icon-badge{flex:0 0 auto;width:44px;height:44px;border-radius:12px;background:var(--brand-light);color:var(--brand-mid);display:grid;place-items:center;font-size:19px}
.value-side h3{font-size:19px;margin-bottom:6px}
.value-side p{font-size:15px;color:var(--ink-2);margin-bottom:0}
.value-desc{font-size:15.5px;color:var(--ink-2)}

/* ---------- 轮播 ---------- */
.tour{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.tour-frame{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);background:var(--brand-light)}
.tour-frame .ratio{aspect-ratio:16/9}
.tour-frame img{width:100%;height:100%;object-fit:cover;border-radius:0}
.tour-caption{position:absolute;left:0;right:0;bottom:0;padding:18px 22px;background:linear-gradient(180deg,rgba(12,43,38,0) 0%,rgba(12,43,38,.78) 100%);color:var(--on-dark)}
.tour-caption h3{color:#fff;font-size:19px;margin-bottom:4px}
.tour-caption p{color:rgba(234,243,240,.86);font-size:14px;margin:0}
.tour-ctrl{width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.88);border:1px solid var(--line);color:var(--brand-mid);display:grid;place-items:center;opacity:1;top:50%;transform:translateY(-50%)}
.tour-ctrl:hover{background:#fff;color:var(--brand-deep)}
.tour-ctrl i{font-size:15px}
.carousel-control-prev.tour-ctrl{left:14px}
.carousel-control-next.tour-ctrl{right:14px}
.tour-thumbs{display:flex;gap:12px;margin-top:16px;overflow-x:auto;padding-bottom:4px}
.tour-thumb{flex:0 0 auto;width:96px;height:60px;border-radius:10px;overflow:hidden;border:2px solid transparent;background:var(--brand-light);padding:0;cursor:pointer;transition:border-color .18s ease}
.tour-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0}
.tour-thumb.active{border-color:var(--brand)}

/* ---------- 系统要求 ---------- */
.sys-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.sys-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1)}
.sys-card h3{display:flex;align-items:center;gap:10px;font-size:20px;margin-bottom:18px}
.sys-card h3 i{color:var(--brand-mid)}
.kv{display:flex;justify-content:space-between;gap:16px;padding:11px 0;border-bottom:1px dashed var(--line);font-size:15px}
.kv:last-of-type{border-bottom:0}
.kv .k{color:var(--ink-2)}
.kv .v{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:14px;font-weight:600;color:var(--ink);text-align:right}
.sys-note{margin-top:14px;font-size:13.5px;color:var(--ink-2);background:var(--action-light);border-radius:var(--r-small);padding:10px 14px}

/* ---------- 评价墙 ---------- */
.review-band{background:var(--brand-deep);color:var(--on-dark);padding:var(--gutter) 0}
.review-band h2{color:#fff}
.review-band .section-head p{color:rgba(234,243,240,.72)}
.review-band .eyebrow{color:#93c9bd}
.review-band .eyebrow::before{background:#93c9bd}
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.review-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);border-radius:var(--r-card);padding:22px}
.review-card:nth-child(2){margin-top:26px}
.review-card:nth-child(5){margin-top:26px}
.stars{color:var(--action);font-size:13px;letter-spacing:2px;margin-bottom:10px}
.review-card p{font-size:15px;color:var(--on-dark);margin-bottom:16px}
.review-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:rgba(234,243,240,.7)}
.review-meta .who{font-weight:600;color:rgba(234,243,240,.92)}
.review-stat{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:34px}
.review-stat .num{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:30px;font-weight:700;color:#fff;line-height:1.1}
.review-stat .num em{font-style:normal;color:var(--action)}
.review-stat .lab{font-size:13.5px;color:rgba(234,243,240,.72)}

/* ---------- 下载区 ---------- */
.dl-card{background:var(--brand);border-radius:var(--r-card);padding:36px;color:#fff;display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:center}
.dl-card h2{color:#fff;font-size:26px;margin-bottom:10px}
.dl-card p{color:rgba(255,255,255,.86);font-size:15px;margin-bottom:22px}
.dl-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:14px}
.dl-hash{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px;color:rgba(255,255,255,.78);word-break:break-all}
.qr-box{justify-self:end;text-align:center}
.qr-code{width:120px;height:120px;border-radius:var(--r-small);background:
  repeating-linear-gradient(90deg,#fff 0 6px,transparent 6px 12px),
  repeating-linear-gradient(0deg,#fff 0 6px,transparent 6px 12px),
  #14524A;
  border:6px solid #fff;margin:0 auto 10px}
.qr-box span{font-size:13px;color:rgba(255,255,255,.85)}
.dl-mini{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:22px}
.dl-mini a{display:flex;align-items:center;gap:12px;padding:16px 18px;border:1px solid var(--line);border-radius:var(--r-small);background:var(--card);color:var(--ink);font-size:15px;font-weight:600;transition:all .18s ease}
.dl-mini a i{color:var(--brand-mid);font-size:17px}
.dl-mini a:hover{border-color:rgba(31,122,107,.45);box-shadow:var(--sh-2);color:var(--brand-mid)}

/* ---------- CMS 列表 ---------- */
.cms-list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cms-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:20px;display:flex;flex-direction:column;gap:10px;transition:all .18s ease}
.cms-card:hover{border-color:rgba(31,122,107,.4);box-shadow:var(--sh-2);transform:translateY(-2px)}
.badge-cat{align-self:flex-start;display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-badge);background:var(--brand-light);color:var(--brand-mid);font-size:12.5px;font-weight:600}
.cms-card h3{font-size:18px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.cms-card h3 a{color:var(--ink)}
.cms-card h3 a:hover{color:var(--brand)}
.cms-card .excerpt{font-size:14.5px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0}
.cms-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:10px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-2)}
.cms-foot i{color:var(--brand);transition:transform .18s ease}
.cms-card:hover .cms-foot i{transform:translateX(3px)}
.cms-empty{grid-column:1/-1;min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;background:var(--card);border:1px dashed var(--line);border-radius:var(--r-card);text-align:center;padding:32px}
.cms-empty .ico{width:64px;height:64px;border-radius:50%;background:var(--brand-light);color:var(--brand-mid);display:grid;place-items:center;font-size:26px}
.cms-empty strong{font-size:16px}
.cms-empty span{font-size:14px;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:start}
.faq-side{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1)}
.faq-side h3{font-size:19px;margin-bottom:10px}
.faq-side p{font-size:14.5px;color:var(--ink-2)}
.faq-side .side-item{display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-top:1px solid var(--line);font-size:14.5px;color:var(--ink-2)}
.faq-side .side-item i{color:var(--brand);margin-top:5px}
.accordion-x .accordion-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-small);margin-bottom:12px;overflow:hidden}
.accordion-x .accordion-button{
  min-height:56px;background:var(--card);color:var(--ink);font-size:16px;font-weight:700;
  padding:16px 20px 16px 22px;border:0;box-shadow:none;position:relative;
}
.accordion-x .accordion-button::after{
  background-image:none;content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;color:var(--brand-mid);width:auto;height:auto;transform:none;transition:transform .2s ease;
}
.accordion-x .accordion-button:not(.collapsed){background:var(--paper);color:var(--brand-mid)}
.accordion-x .accordion-button:not(.collapsed)::after{transform:rotate(180deg)}
.accordion-x .accordion-button:hover{background:var(--paper)}
.accordion-x .accordion-button:focus{box-shadow:none}
.accordion-x .accordion-item:has(.accordion-button:not(.collapsed)){border-left:3px solid var(--brand)}
.accordion-x .accordion-body{font-size:15px;color:var(--ink-2);padding:0 22px 18px;background:var(--paper)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-deep);color:var(--on-dark);padding:66px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:19px;font-weight:700;margin-bottom:12px}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.14)}
.site-footer p{color:rgba(234,243,240,.72);font-size:14px;max-width:30em}
.site-footer h4{color:#fff;font-size:15.5px;margin-bottom:14px}
.footer-links{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.footer-links a{color:rgba(255,255,255,.8);font-size:14.5px}
.footer-links a:hover{color:#fff;text-decoration:underline;text-decoration-thickness:2px;text-decoration-color:var(--brand)}
.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13.5px;color:rgba(234,243,240,.62)}
.footer-bottom a{color:rgba(234,243,240,.8)}

/* ---------- 移动吸底 ---------- */
.mobile-dl{
  position:fixed;left:0;right:0;bottom:0;z-index:1050;height:58px;
  display:none;align-items:center;gap:12px;padding:0 16px;
  background:rgba(12,43,38,.96);border-top:1px solid rgba(255,255,255,.12);
  transform:translateY(100%);transition:transform .25s ease;
}
.mobile-dl.show{transform:translateY(0)}
.mobile-dl .txt{flex:1;color:var(--on-dark);font-size:13px;line-height:1.4}
.mobile-dl .txt strong{display:block;font-size:14.5px;color:#fff}
.mobile-dl .btn-x{flex:0 0 60%;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container-x{max-width:960px}
}
@media (max-width:991px){
  :root{--gutter:64px}
  h1{font-size:31px}
  h2{font-size:24px}
  .nav-links{display:none}
  .nav-cta .btn-x{display:none}
  .nav-toggle{display:grid;place-items:center}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-float{left:12px;bottom:12px}
  .value-grid{grid-template-columns:1fr}
  .metric-bar{grid-template-columns:repeat(2,1fr)}
  .metric:nth-child(2){border-right:0}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--line)}
  .sys-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:repeat(2,1fr)}
  .review-card:nth-child(2),.review-card:nth-child(5){margin-top:0}
  .dl-card{grid-template-columns:1fr;padding:28px}
  .qr-box{justify-self:start;text-align:left}
  .dl-mini{grid-template-columns:1fr}
  .cms-list{grid-template-columns:repeat(2,1fr)}
  .faq-wrap{grid-template-columns:1fr;gap:26px}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:767px){
  :root{--gutter:48px}
  body{font-size:16px}
  h1{font-size:27px}
  h2{font-size:22px}
  h3{font-size:19px}
  .section{padding:var(--gutter) 0}
  .hero{padding:36px 0 52px}
  .hero-actions .btn-x{width:100%}
  .metric-bar{grid-template-columns:1fr}
  .metric{border-right:0;border-bottom:1px solid var(--line)}
  .metric:last-child{border-bottom:0}
  .review-grid,.cms-list{grid-template-columns:1fr}
  .review-stat{grid-template-columns:1fr;gap:14px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .tour-thumb{width:82px;height:52px}
  .mobile-dl{display:flex}
  .site-footer{padding-bottom:76px}
}
@media (max-width:575px){
  .container-x{padding:0 16px}
  .hero-float{position:static;margin-top:14px;left:auto;bottom:auto}
  .dl-actions .btn-x{width:100%}
}

/* roulang page: article */
:root{
  --brand-deep:#0C2B26;
  --brand:#1F7A6B;
  --brand-mid:#14524A;
  --brand-light:#DCEBE6;
  --action:#E4791C;
  --action-light:#FBEBD8;
  --bg:#F6F3EC;
  --card:#FFFFFF;
  --ink:#16211F;
  --ink-2:#4A5A56;
  --line:#E2E0D8;
  --on-dark:#EAF3F0;
  --ok:#2E9E6B;
  --warn:#D97706;
  --r-card:16px;
  --r-sub:12px;
  --r-img:14px;
  --r-btn:10px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(12,43,38,.05);
  --sh-2:0 10px 26px -14px rgba(12,43,38,.22);
  --font-cn:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img)}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-mid)}
button,input,select,textarea{font:inherit}
h1,h2,h3,h4{color:var(--ink);font-weight:700;letter-spacing:.2px}
h1{font-size:38px;line-height:1.3;margin:0 0 14px}
h2{font-size:27px;line-height:1.4;margin:0 0 14px}
h3{font-size:21px;line-height:1.5;margin:0 0 10px}
p{margin:0 0 1.15em}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
::selection{background:var(--brand-light);color:var(--brand-deep)}

/* Bootstrap 外观覆盖 */
.btn{border-radius:var(--r-btn);font-weight:600;transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease}
.btn-primary{--bs-btn-bg:#1F7A6B;--bs-btn-border-color:#1F7A6B;--bs-btn-hover-bg:#14524A;--bs-btn-hover-border-color:#14524A;--bs-btn-active-bg:#14524A;--bs-btn-active-border-color:#14524A;--bs-btn-disabled-bg:#1F7A6B;--bs-btn-disabled-border-color:#1F7A6B}
.btn-outline-primary{--bs-btn-color:#1F7A6B;--bs-btn-border-color:#1F7A6B;--bs-btn-hover-bg:#DCEBE6;--bs-btn-hover-border-color:#1F7A6B;--bs-btn-hover-color:#14524A;--bs-btn-active-bg:#DCEBE6;--bs-btn-active-color:#14524A}
.card{border-radius:var(--r-card);border-color:var(--line);box-shadow:var(--sh-1);background:var(--card)}
.nav{--bs-nav-link-color:var(--ink-2);--bs-nav-link-hover-color:var(--brand-mid)}
.accordion{--bs-accordion-btn-focus-box-shadow:0 0 0 3px rgba(31,122,107,.18);--bs-accordion-active-bg:var(--brand-light);--bs-accordion-active-color:var(--brand-mid);--bs-accordion-border-color:var(--line)}
.carousel-indicators [data-bs-target]{background-color:var(--brand)}
.pagination{--bs-pagination-active-bg:var(--brand);--bs-pagination-active-border-color:var(--brand);--bs-pagination-color:var(--ink-2);--bs-pagination-hover-color:var(--brand-mid)}

/* 容器 */
.container-x{width:100%;max-width:1180px;margin:0 auto;padding:0 16px}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:60;padding:12px 0;background:rgba(246,243,236,.92);backdrop-filter:blur(8px)}
.nav-panel{
  position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:10px 16px;box-shadow:var(--sh-1);
}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.3px}
.brand:hover{color:var(--brand)}
.brand-mark{width:36px;height:36px;border-radius:10px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:16px;flex:0 0 36px}
.nav-links{display:flex;align-items:center;gap:10px}
.nav-chip{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sub);
  font-size:14px;color:var(--ink-2);white-space:nowrap;
  transition:background-color .18s ease,border-color .18s ease,color .18s ease,transform .18s ease;
}
.nav-chip i{font-size:17px}
.nav-chip:hover{background:var(--brand-light);border-color:var(--brand);color:var(--brand-mid);transform:translateX(-2px)}
.nav-chip.active,.nav-chip[aria-current="page"]{background:var(--brand-light);border-color:var(--brand);color:var(--brand-mid);font-weight:600}
.nav-cta{display:flex;align-items:center;gap:10px}
.nav-toggle{display:none;align-items:center;justify-content:center;width:40px;height:40px;border-radius:var(--r-sub);border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer}
.nav-toggle:hover{background:var(--brand-light);border-color:var(--brand);color:var(--brand-mid)}

/* 按钮 */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);padding:12px 22px;font-weight:600;font-size:15px;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-x:active{transform:none}
.btn-primary-x{background:var(--brand);color:#fff}
.btn-primary-x:hover{background:var(--brand-mid);color:#fff;transform:translateY(-1px)}
.btn-action{background:var(--action);color:#fff}
.btn-action:hover{background:#c96613;color:#fff;transform:translateY(-1px)}
.btn-outline-x{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-outline-x:hover{background:var(--brand-light);color:var(--brand-mid)}
.btn-ghost-x{background:transparent;border-color:var(--line);color:var(--ink-2)}
.btn-ghost-x:hover{background:var(--brand-light);border-color:var(--brand);color:var(--brand-mid)}
.btn-sm-x{padding:8px 16px;font-size:14px}

/* 徽章 / 标签 */
.badge-x{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-badge);background:var(--brand-light);color:var(--brand-mid);font-size:13px;font-weight:600;line-height:1}
.badge-warm{background:var(--action-light);color:#9a4d08}

/* 面包屑 */
.crumb-bar{padding:22px 0 6px}
.breadcrumb-x ol{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0;padding:0;font-size:14px;color:var(--ink-2)}
.breadcrumb-x li{display:inline-flex;align-items:center;gap:8px;max-width:340px}
.breadcrumb-x li+li::before{content:"/";color:var(--line);font-weight:600}
.breadcrumb-x li span.current{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--ink)}
.breadcrumb-x a{color:var(--ink-2)}
.breadcrumb-x a:hover{color:var(--brand-mid)}

/* 文章头 */
.article-hero{
  background:linear-gradient(180deg,#F6F3EC 0%,var(--brand-light) 100%);
  padding:26px 0 96px;
  border-bottom:1px solid var(--line);
}
.article-head{max-width:42em;margin:0 auto}
.article-head h1{font-size:38px;margin:16px 0 14px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--ink-2)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--ink-2);opacity:.5}
.article-meta time{font-family:var(--font-mono);font-size:13.5px;letter-spacing:.3px}

/* 正文卡 */
.article-wrap{padding:0 0 72px}
.article-shell{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:40px;margin-top:-64px;
}
.article-body{max-width:42em;margin:0 auto;font-size:17px;line-height:1.85;color:var(--ink);word-break:break-word}
.article-body>p:first-child{font-size:18px;color:var(--ink-2)}
.article-body p{margin:0 0 1.15em;text-indent:0}
.article-body h2{font-size:27px;line-height:1.4;margin:2em 0 .7em;padding-left:16px;position:relative}
.article-body h2::before{content:"";position:absolute;left:0;top:.24em;bottom:.24em;width:4px;border-radius:2px;background:var(--brand)}
.article-body h3{font-size:21px;margin:1.6em 0 .6em;color:var(--brand-mid)}
.article-body ul,.article-body ol{margin:0 0 1.15em;padding-left:1.4em}
.article-body li{margin:.45em 0}
.article-body strong{color:var(--brand-deep)}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--brand-mid);text-decoration-thickness:2px}
.article-body blockquote{
  margin:1.5em 0;padding:16px 22px;background:var(--brand-light);
  border-left:4px solid var(--brand);border-radius:0 var(--r-sub) var(--r-sub) 0;color:var(--brand-deep);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body pre{
  background:#F6F3EC;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:16px 18px;overflow:auto;font-family:var(--font-mono);font-size:14px;line-height:1.7;color:var(--ink);margin:1.4em 0;
}
.article-body code{font-family:var(--font-mono);font-size:.9em;background:#F6F3EC;border:1px solid var(--line);border-radius:6px;padding:2px 6px}
.article-body pre code{background:none;border:0;padding:0}
.article-body img{margin:1.4em auto;border-radius:var(--r-img);box-shadow:var(--sh-1)}
.article-body figure{margin:1.5em 0}
.article-body figcaption{font-size:13px;color:var(--ink-2);text-align:center;margin-top:8px}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;margin:1.5em 0;font-size:15px;
  border:1px solid var(--line);border-radius:var(--r-sub);overflow:hidden;
}
.article-body th{background:var(--brand-light);color:var(--brand-mid);text-align:left;font-weight:600}
.article-body th,.article-body td{padding:10px 16px;height:44px;border-bottom:1px solid var(--line);vertical-align:middle}
.article-body tr:last-child td{border-bottom:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}

/* 空态 */
.article-empty{text-align:center;padding:56px 20px}
.article-empty .empty-icon{
  width:76px;height:76px;border-radius:50%;background:var(--brand-light);color:var(--brand);
  display:grid;place-items:center;font-size:30px;margin:0 auto 18px;
}
.article-empty p{color:var(--ink-2);margin-bottom:20px}

/* 文末操作条 */
.post-actions{
  max-width:42em;margin:36px auto 0;padding-top:24px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
}
.post-actions .hint{font-size:13px;color:var(--ink-2)}

/* 相关推荐 */
.related{padding:8px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;flex-wrap:wrap}
.section-head h2{margin:0;font-size:26px}
.section-head .sub{font-size:14px;color:var(--ink-2)}
.related-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.related-card{
  display:flex;gap:14px;align-items:flex-start;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);padding:14px;
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.related-card:hover{border-color:rgba(31,122,107,.4);box-shadow:var(--sh-2);transform:translateY(-3px)}
.related-card .thumb{width:96px;height:64px;flex:0 0 96px;object-fit:cover;border-radius:var(--r-sub);background:var(--brand-light)}
.related-card h3{font-size:15px;line-height:1.55;margin:0 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-card:hover h3{color:var(--brand)}
.related-card .meta{font-size:13px;color:var(--ink-2);display:flex;align-items:center;gap:8px;font-family:var(--font-mono)}

/* 页脚 */
.site-footer{background:var(--brand-deep);color:var(--on-dark);margin-top:80px;padding:60px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-brand .brand-mark{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.08);color:var(--on-dark)}
.site-footer h4{font-size:15px;color:#fff;margin:0 0 14px;letter-spacing:.4px}
.site-footer p{color:rgba(234,243,240,.75);font-size:14px;line-height:1.8;margin:0;max-width:32em}
.footer-links{list-style:none;margin:0;padding:0}
.footer-links li{margin-bottom:10px}
.footer-links a{color:rgba(255,255,255,.8);font-size:14px}
.footer-links a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--brand);text-decoration-thickness:2px;text-underline-offset:4px}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:rgba(234,243,240,.62);
}

@media (max-width:1199px){
  .container-x{max-width:960px}
}
@media (max-width:991px){
  .nav-toggle{display:inline-flex}
  .nav-links{
    position:absolute;left:12px;right:12px;top:calc(100% + 10px);
    display:none;grid-template-columns:1fr 1fr;gap:10px;
    background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
    padding:14px;box-shadow:var(--sh-2);z-index:70;
  }
  .nav-links.is-open{display:grid}
  .nav-chip{height:44px;justify-content:flex-start;width:100%}
  .nav-chip:hover{transform:none}
  .article-head h1{font-size:32px}
  .article-hero{padding:20px 0 84px}
  .article-shell{padding:32px;margin-top:-56px}
  .related-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .container-x{padding:0 20px}
  h1{font-size:27px}
  .article-head h1{font-size:27px}
  .article-body,.article-body h2{font-size:17px}
  .article-body h2{font-size:23px}
  .article-body h3{font-size:19px}
  .article-shell{padding:24px 20px;margin-top:-44px;border-radius:var(--r-sub)}
  .article-hero{padding:16px 0 76px}
  .site-footer{margin-top:56px;padding:48px 0 24px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .related-list{grid-template-columns:1fr}
  .breadcrumb-x li{max-width:180px}
  .brand{font-size:17px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
}
@media (max-width:575px){
  .nav-cta .btn-sm-x{padding:8px 12px;font-size:13px}
  .post-actions{flex-direction:column;align-items:stretch}
  .post-actions .btn-x{width:100%}
}

/* roulang page: category1 */
:root{
  --brand-deep:#0C2B26;
  --brand:#1F7A6B;
  --brand-mid:#14524A;
  --brand-soft:#DCEBE6;
  --action:#E4791C;
  --action-soft:#FBEBD8;
  --bg:#F6F3EC;
  --card:#FFFFFF;
  --ink:#16211F;
  --ink-2:#4A5A56;
  --line:#E2E0D8;
  --dark-ink:#EAF3F0;
  --ok:#2E9E6B;
  --warn:#D97706;
  --r-card:16px;
  --r-sm:12px;
  --r-img:14px;
  --r-btn:10px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(12,43,38,.05);
  --sh-2:0 10px 26px -14px rgba(12,43,38,.22);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
  --font-cn:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-mid);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand);}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:700;line-height:1.3;color:var(--ink);}
p{margin:0 0 1.15em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

.container-x{width:100%;max-width:1180px;margin:0 auto;padding:0 20px;}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--bg);padding:16px 0 8px;}
.nav-panel{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:10px 16px;box-shadow:var(--sh-1);position:relative;
}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--brand-deep);letter-spacing:.2px;}
.brand:hover{color:var(--brand-mid);}
.brand-mark{width:36px;height:36px;border-radius:10px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:15px;flex:none;}
.nav-links{display:flex;align-items:center;gap:10px;}
.nav-chip{
  display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 13px;
  border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);
  font-size:15px;line-height:1;white-space:nowrap;transition:background .18s ease,border-color .18s ease,color .18s ease;
}
.nav-chip i{font-size:14px;color:var(--brand-mid);transition:transform .18s ease;}
.nav-chip:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-mid);}
.nav-chip:hover i{transform:translateX(-2px);}
.nav-chip.active{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-mid);font-weight:600;}
.nav-cta{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;width:40px;height:38px;border:1px solid var(--line);border-radius:10px;
  background:#fff;color:var(--brand-mid);font-size:16px;align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle:hover{background:var(--brand-soft);border-color:var(--brand);}

/* ---------- buttons ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:16px;font-weight:600;line-height:1.2;cursor:pointer;text-align:center;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary-x{background:var(--brand);color:#fff;}
.btn-primary-x:hover{background:var(--brand-mid);color:#fff;transform:translateY(-1px);}
.btn-primary-x:active{transform:none;}
.btn-action{background:var(--action);color:#fff;}
.btn-action:hover{background:#c96813;color:#fff;transform:translateY(-1px);}
.btn-action:active{transform:none;}
.btn-ghost-x{background:transparent;border-color:var(--brand);color:var(--brand-mid);}
.btn-ghost-x:hover{background:var(--brand-soft);color:var(--brand-mid);}
.btn-white-x{background:#fff;color:var(--brand-mid);}
.btn-white-x:hover{background:var(--brand-soft);color:var(--brand-mid);transform:translateY(-1px);}
.btn-outline-white{background:transparent;border-color:rgba(255,255,255,.6);color:#fff;}
.btn-outline-white:hover{background:rgba(255,255,255,.12);color:#fff;}
.btn-sm-x{padding:9px 16px;font-size:14px;border-radius:10px;}

/* ---------- breadcrumb ---------- */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-2);padding:6px 0 18px;}
.crumbs a{color:var(--ink-2);}
.crumbs a:hover{color:var(--brand);}
.crumbs i{font-size:10px;color:#9aa8a3;}
.crumbs span[aria-current]{color:var(--brand-mid);font-weight:600;}

/* ---------- sections ---------- */
main > section{padding:44px 0;}
.section-head{max-width:720px;margin-bottom:32px;}
.section-head h2{font-size:27px;margin-bottom:12px;}
.section-head p{color:var(--ink-2);margin:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:26px;padding:0 10px;margin-bottom:14px;
  border-radius:var(--r-badge);background:var(--brand-soft);color:var(--brand-mid);
  font-size:13px;font-weight:600;letter-spacing:.4px;
}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;border:1px solid var(--line);
  border-radius:var(--r-card);background:linear-gradient(180deg,#F6F3EC 0%,#E8F0ED 100%);
}
.page-hero .hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center right;opacity:.16;
}
.hero-inner{
  position:relative;display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center;
  padding:52px 44px;
}
.hero-inner h1{font-size:38px;letter-spacing:-.4px;margin-bottom:16px;}
.hero-lead{font-size:17px;color:var(--ink-2);max-width:34em;margin-bottom:24px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:14px;}
.hero-meta{font-size:13.5px;color:var(--ink-2);margin-bottom:24px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;}
.badge-x{
  display:inline-flex;align-items:center;gap:7px;height:26px;padding:0 10px;
  border-radius:var(--r-badge);background:var(--brand-soft);color:var(--brand-mid);
  font-size:13px;font-weight:600;white-space:nowrap;
}
.badge-x i{font-size:12px;}
.badge-warm{background:var(--action-soft);color:#9a4c06;}
.hero-figure{
  border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);
  aspect-ratio:16/10;background:#fff;box-shadow:var(--sh-2);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}

/* ---------- split layout ---------- */
.split-75{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start;}
.split-5{display:flex;flex-direction:column;gap:24px;}
.card-x{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.card-x:hover{border-color:rgba(31,122,107,.4);box-shadow:var(--sh-2);transform:translateY(-3px);}
.card-x h3{font-size:21px;margin-bottom:10px;}
.card-x p{color:var(--ink-2);font-size:15.5px;}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:16px;flex-wrap:wrap;}
.card-head h3{margin:0;}
.card-note{font-size:13.5px;color:var(--ink-2);}
.icon-round{
  width:44px;height:44px;border-radius:var(--r-sm);background:var(--brand-soft);color:var(--brand-mid);
  display:grid;place-items:center;font-size:18px;margin-bottom:16px;
}

/* ---------- key/value rows ---------- */
.kv-list{border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;background:#fff;}
.kv-row{display:grid;grid-template-columns:150px 1fr;gap:16px;padding:13px 16px;border-bottom:1px solid var(--line);font-size:15px;}
.kv-row:last-child{border-bottom:none;}
.kv-row .kv-key{color:var(--ink-2);}
.kv-row .kv-val{font-weight:600;color:var(--ink);}

/* ---------- stat bar ---------- */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
}
.stat-item{background:#fff;padding:24px 22px;}
.stat-value{font-size:26px;font-weight:700;color:var(--brand-mid);font-variant-numeric:tabular-nums;line-height:1.2;margin-bottom:6px;}
.stat-label{font-size:14px;color:var(--ink-2);}

/* ---------- steps ---------- */
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px 22px;transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;}
.step-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:rgba(31,122,107,.4);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;
  border-radius:9px;background:var(--brand);color:#fff;font-size:15px;font-weight:700;margin-bottom:14px;
}
.step-card h3{font-size:18px;margin-bottom:8px;}
.step-card p{font-size:14.6px;color:var(--ink-2);margin:0;}

/* ---------- scenario ---------- */
.scene-grid{display:grid;grid-template-columns:5fr 7fr;gap:36px;align-items:center;}
.scene-figure{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);aspect-ratio:4/3;background:#fff;}
.scene-figure img{width:100%;height:100%;object-fit:cover;}
.scene-list li{
  display:flex;gap:14px;padding:16px 18px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-sm);margin-bottom:12px;transition:border-color .18s ease,box-shadow .18s ease;
}
.scene-list li:hover{border-color:rgba(31,122,107,.4);box-shadow:var(--sh-2);}
.scene-list i{color:var(--brand);font-size:16px;margin-top:5px;}
.scene-list strong{display:block;font-size:16px;margin-bottom:2px;}
.scene-list span{font-size:14.6px;color:var(--ink-2);}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:36px;align-items:start;}
.accordion-x .accordion-item{border:1px solid var(--line);border-radius:var(--r-sm)!important;margin-bottom:12px;overflow:hidden;background:#fff;}
.accordion-x .accordion-button{
  min-height:56px;padding:16px 52px 16px 22px;font-size:16px;font-weight:600;color:var(--ink);
  background:#fff;box-shadow:none;position:relative;border-radius:var(--r-sm)!important;
}
.accordion-x .accordion-button:hover{background:var(--bg);}
.accordion-x .accordion-button::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;background:transparent;
}
.accordion-x .accordion-button:not(.collapsed){color:var(--brand-mid);background:#fff;}
.accordion-x .accordion-button:not(.collapsed)::before{background:var(--brand);}
.accordion-x .accordion-button::after{
  width:14px;height:14px;background-size:14px;background-position:center;background-repeat:no-repeat;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%231F7A6B' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M4 6l4 4 4-4'/%3E%3C/svg%3E");
}
.accordion-x .accordion-button:not(.collapsed)::after{transform:rotate(180deg);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%2314524A' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M4 6l4 4 4-4'/%3E%3C/svg%3E");}
.accordion-x .accordion-body{padding:4px 22px 22px;font-size:15px;color:var(--ink-2);}
.accordion-x .accordion-button:focus{box-shadow:0 0 0 2px rgba(31,122,107,.25);}
.faq-aside{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px;}
.faq-aside h3{font-size:19px;}
.faq-aside ul li{padding:10px 0;border-bottom:1px dashed var(--line);font-size:15px;color:var(--ink-2);}
.faq-aside ul li:last-child{border-bottom:none;}

/* ---------- cta ---------- */
.cta-card{
  background:var(--brand);color:#fff;border-radius:var(--r-card);padding:40px 44px;
  display:grid;grid-template-columns:7fr 5fr;gap:36px;align-items:center;
}
.cta-card h2{color:#fff;font-size:27px;margin-bottom:12px;}
.cta-card p{color:rgba(255,255,255,.85);max-width:32em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:14px;}
.cta-checksum{font-size:13.5px;color:rgba(255,255,255,.8);word-break:break-all;}
.qr-box{
  width:120px;height:120px;border-radius:var(--r-sm);background:#fff;color:var(--brand-mid);
  display:grid;place-items:center;font-size:36px;margin-bottom:12px;
}
.qr-col{display:flex;flex-direction:column;align-items:flex-start;}
.qr-col span{font-size:14px;color:rgba(255,255,255,.85);}
.mini-entries{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:24px;}
.mini-entry{
  display:flex;align-items:center;gap:12px;padding:16px 18px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-sm);font-size:15px;font-weight:600;color:var(--ink);
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease,color .18s ease;
}
.mini-entry i{color:var(--brand);}
.mini-entry:hover{border-color:rgba(31,122,107,.4);box-shadow:var(--sh-2);transform:translateY(-3px);color:var(--brand-mid);}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-deep);color:var(--dark-ink);margin-top:64px;padding:56px 0 26px;}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.08);}
.site-footer p{color:rgba(234,243,240,.72);font-size:14.6px;max-width:26em;}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:16px;letter-spacing:.3px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:rgba(255,255,255,.8);font-size:14.6px;}
.footer-links a:hover{color:#fff;text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px;text-decoration-color:var(--brand);}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  font-size:13.5px;color:rgba(234,243,240,.6);
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .container-x{max-width:960px;}
  .hero-inner{padding:44px 36px;gap:32px;}
  .hero-inner h1{font-size:34px;}
  .step-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991px){
  .nav-toggle{display:inline-flex;}
  .nav-links{
    position:absolute;top:calc(100% + 10px);left:0;right:0;display:none;
    grid-template-columns:repeat(2,1fr);gap:10px;padding:14px;background:#fff;
    border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-2);
  }
  .nav-links.open{display:grid;}
  .nav-chip{justify-content:flex-start;width:100%;}
  .hero-inner{grid-template-columns:1fr;gap:28px;padding:38px 28px;}
  .hero-inner h1{font-size:30px;}
  .split-75{grid-template-columns:1fr;}
  .stat-bar{grid-template-columns:repeat(2,1fr);}
  .scene-grid{grid-template-columns:1fr;gap:26px;}
  .faq-wrap{grid-template-columns:1fr;gap:26px;}
  .cta-card{grid-template-columns:1fr;padding:34px 30px;gap:28px;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:30px;}
  main > section{padding:32px 0;}
  .section-head{margin-bottom:24px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container-x{padding:0 20px;}
  .hero-inner{padding:30px 20px;}
  .hero-inner h1{font-size:27px;}
  .hero-lead{font-size:16px;}
  .section-head h2{font-size:23px;}
  .card-x{padding:20px;}
  .kv-row{grid-template-columns:1fr;gap:4px;}
  .mini-entries{grid-template-columns:1fr;}
  .cta-card h2{font-size:23px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  main > section{padding:24px 0;}
}
@media (max-width:575px){
  .nav-panel{padding:10px 12px;gap:10px;}
  .brand{font-size:17px;}
  .nav-links{grid-template-columns:1fr;}
  .stat-bar{grid-template-columns:1fr;}
  .step-grid{grid-template-columns:1fr;}
  .hero-actions .btn-x{width:100%;}
  .cta-actions .btn-x{width:100%;}
  .btn-sm-x{width:auto;}
}

/* roulang page: category2 */
:root{
  --brand-deep:#0C2B26;
  --brand:#1F7A6B;
  --brand-mid:#14524A;
  --brand-soft:#DCEBE6;
  --action:#E4791C;
  --action-soft:#FBEBD8;
  --paper:#F6F3EC;
  --card:#FFFFFF;
  --ink:#16211F;
  --ink-2:#4A5A56;
  --line:#E2E0D8;
  --on-dark:#EAF3F0;
  --ok:#2E9E6B;
  --warn:#D97706;
  --r-card:16px;
  --r-inner:12px;
  --r-img:14px;
  --r-btn:10px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(12,43,38,.05);
  --sh-2:0 10px 26px -14px rgba(12,43,38,.22);
  --sect:88px;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;

  --bs-primary:#1F7A6B;
  --bs-primary-rgb:31,122,107;
  --bs-body-bg:#F6F3EC;
  --bs-body-color:#16211F;
  --bs-border-color:#E2E0D8;
  --bs-link-color:#1F7A6B;
  --bs-link-hover-color:#14524A;
  --bs-border-radius:10px;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-mid);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:.2px;}
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;}

/* 容器 */
.container-x{width:100%;max-width:1180px;margin:0 auto;padding:0 24px;}

/* 导航 */
.site-header{padding:18px 0 0;}
.nav-panel{
  display:flex;align-items:center;gap:18px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:12px 16px;
}
.brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--ink);white-space:nowrap;}
.brand:hover{color:var(--brand-mid);}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;background:var(--brand);color:#fff;font-size:15px;
}
.nav-links{display:flex;align-items:center;gap:10px;margin-left:auto;flex-wrap:wrap;}
.nav-chip{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 14px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:10px;
  color:var(--ink-2);
  font-size:14px;font-weight:600;
  transition:background .18s ease,border-color .18s ease,color .18s ease;
}
.nav-chip i{font-size:13px;transition:transform .18s ease;color:var(--brand);}
.nav-chip:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-mid);}
.nav-chip:hover i{transform:translateX(-2px);}
.nav-chip.active{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-mid);}
.nav-cta{display:flex;align-items:center;gap:10px;margin-left:6px;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--line);background:var(--card);color:var(--brand-mid);font-size:15px;
}
.nav-toggle:hover{background:var(--brand-soft);border-color:var(--brand);}

/* 按钮 */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary-x{background:var(--brand);color:#fff;}
.btn-primary-x:hover{background:var(--brand-mid);color:#fff;transform:translateY(-1px);}
.btn-primary-x:active{transform:none;}
.btn-action{background:var(--action);color:#fff;}
.btn-action:hover{background:#c96712;color:#fff;transform:translateY(-1px);}
.btn-action:active{transform:none;}
.btn-ghost-x{background:transparent;color:var(--brand-mid);border-color:var(--brand);}
.btn-ghost-x:hover{background:var(--brand-soft);color:var(--brand-mid);}
.btn-light-x{background:#fff;color:var(--brand-mid);}
.btn-light-x:hover{background:var(--brand-soft);color:var(--brand-mid);}
.btn-outline-white{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.btn-outline-white:hover{background:rgba(255,255,255,.12);color:#fff;}
.btn-sm-x{padding:9px 16px;font-size:14px;}

/* 面包屑 */
.crumbs{padding:22px 0 0;font-size:13.5px;color:var(--ink-2);}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumbs li{display:flex;align-items:center;gap:8px;}
.crumbs li + li::before{content:"/";color:#b9b6ac;}
.crumbs a{color:var(--ink-2);}
.crumbs a:hover{color:var(--brand-mid);}
.crumbs .current{color:var(--brand-mid);font-weight:600;}

/* 页头 */
.page-head{padding:28px 0 0;}
.page-head-inner{
  background:linear-gradient(160deg,#FFFFFF 0%,#EEF5F1 100%);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:36px 36px 30px;
}
.badge-x{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;border-radius:var(--r-badge);
  background:var(--brand-soft);color:var(--brand-mid);
  font-size:13px;font-weight:600;
}
.page-head h1{font-size:36px;line-height:1.3;margin:14px 0 0;max-width:22em;}
.page-head .lede{font-size:16.5px;color:var(--ink-2);margin-top:12px;max-width:40em;}
.head-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;}

/* 指标条 */
.metric-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  margin-top:26px;
}
.metric{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-inner);
  padding:16px 18px;box-shadow:var(--sh-1);
}
.metric-num{display:block;font-family:var(--mono);font-size:24px;font-weight:700;color:var(--brand-mid);line-height:1.2;}
.metric-num em{font-family:inherit;font-size:13px;font-style:normal;color:var(--ink-2);margin-left:2px;}
.metric-lbl{display:block;font-size:13.5px;color:var(--ink-2);margin-top:6px;}

/* 区块 */
.section{padding:var(--sect) 0 0;}
.section-tight{padding-top:56px;}
.section-title{font-size:26px;line-height:1.35;}
.section-desc{color:var(--ink-2);font-size:15.5px;margin-top:10px;max-width:44em;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;}
.link-more{font-size:14px;font-weight:600;white-space:nowrap;}

/* 双栏布局 */
.body-grid{display:grid;grid-template-columns:4fr 8fr;gap:40px;align-items:start;}

/* 粘性索引卡 */
.sticky-side{position:sticky;top:26px;}
.index-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh-1);
}
.index-card h2{font-size:17px;display:flex;align-items:center;gap:8px;}
.index-card h2::before{content:"";width:3px;height:16px;border-radius:2px;background:var(--brand-mid);}
.index-list{margin-top:14px;}
.index-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:10px;
  color:var(--ink-2);font-size:14.5px;font-weight:600;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.index-list a i{font-size:11px;color:#a9a69c;transition:color .18s ease;}
.index-list a:hover{background:var(--brand-soft);color:var(--brand-mid);transform:translateX(2px);}
.index-list a:hover i{color:var(--brand);}
.index-note{
  margin-top:16px;padding:14px;border-radius:var(--r-inner);
  background:var(--action-soft);border:1px solid #f0d8bb;
}
.index-note b{display:block;font-size:13px;color:#8a4d10;letter-spacing:.4px;}
.index-note span{display:block;font-family:var(--mono);font-size:13.5px;color:#6d3d0c;margin-top:4px;}
.index-note p{font-size:13px;color:#7b4d16;margin-top:6px;line-height:1.7;}

/* 正文 */
.prose{max-width:42em;}
.prose h2{font-size:26px;line-height:1.4;margin-bottom:14px;padding-top:6px;}
.prose h2 + p{margin-top:0;}
.prose h3{font-size:20px;line-height:1.45;margin:30px 0 10px;}
.prose p{font-size:16.5px;line-height:1.85;color:var(--ink);margin-top:14px;}
.prose p.sub{color:var(--ink-2);font-size:15.5px;}
.block-gap{margin-top:48px;}

/* 步骤列表 */
.step-list{counter-reset:step;margin-top:18px;}
.step-list li{
  position:relative;
  counter-increment:step;
  padding:14px 18px 14px 56px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-inner);
  margin-bottom:10px;
  font-size:15.5px;color:var(--ink);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.step-list li::before{
  content:counter(step,decimal-leading-zero);
  position:absolute;left:16px;top:14px;
  width:26px;height:26px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand-mid);
  font-family:var(--mono);font-size:12px;font-weight:700;
}
.step-list li:hover{border-color:rgba(31,122,107,.4);box-shadow:var(--sh-2);}

/* 图文块 */
.figure-block{margin-top:26px;}
.figure-block img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);border:1px solid var(--line);}
.figure-block figcaption{font-size:13px;color:var(--ink-2);margin-top:10px;}

/* 小卡片列表 */
.mini-list{display:grid;gap:14px;margin-top:24px;}
.mini-card{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-inner);
  padding:14px;
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.mini-card:hover{border-color:rgba(31,122,107,.4);box-shadow:var(--sh-2);transform:translateY(-2px);}
.mini-card img{width:150px;flex:0 0 150px;aspect-ratio:16/10;object-fit:cover;border-radius:12px;}
.mini-card h3{font-size:18px;line-height:1.4;}
.mini-card p{font-size:14.5px;color:var(--ink-2);margin-top:6px;line-height:1.75;}
.mini-card .tag{display:inline-flex;height:22px;align-items:center;padding:0 8px;border-radius:var(--r-badge);background:var(--brand-soft);color:var(--brand-mid);font-size:12px;font-weight:600;margin-bottom:6px;}

/* 提示条 */
.notice{
  display:flex;gap:14px;align-items:flex-start;
  margin-top:26px;padding:16px 18px;
  background:var(--action-soft);
  border-left:4px solid var(--action);
  border-radius:var(--r-inner);
}
.notice i{color:var(--action);font-size:16px;margin-top:4px;}
.notice p{font-size:14.5px;color:#7b4d16;line-height:1.8;}

/* 深色引用带 */
.quote-band{
  margin-top:var(--sect);
  background:var(--brand-deep);
  color:var(--on-dark);
  padding:64px 0;
}
.quote-grid{display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center;}
.quote-text{font-size:22px;line-height:1.75;font-weight:600;color:#fff;}
.quote-by{font-size:13.5px;color:rgba(234,243,240,.7);margin-top:16px;}
.quote-stats{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.qstat{
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--r-inner);
  padding:18px;
  background:rgba(255,255,255,.04);
}
.qstat b{display:block;font-family:var(--mono);font-size:28px;color:var(--action);line-height:1.1;}
.qstat span{display:block;font-size:13px;color:rgba(234,243,240,.72);margin-top:8px;}

/* FAQ */
.faq-x .accordion-item{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-inner) !important;margin-bottom:12px;overflow:hidden;
}
.faq-x .accordion-button{
  min-height:56px;
  padding:16px 54px 16px 18px;
  font-size:16px;font-weight:700;color:var(--ink);
  background:var(--card);
  border-left:3px solid transparent;
  box-shadow:none;
}
.faq-x .accordion-button:hover{background:var(--paper);}
.faq-x .accordion-button:not(.collapsed){
  background:var(--brand-soft);
  color:var(--brand-mid);
  border-left:3px solid var(--brand);
  box-shadow:none;
}
.faq-x .accordion-button:focus{box-shadow:none;outline:2px solid var(--brand);outline-offset:-3px;}
.faq-x .accordion-button::after{
  content:"";width:9px;height:9px;background-image:none;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg);margin-top:-4px;position:absolute;right:22px;top:50%;
  transition:transform .2s ease;
}
.faq-x .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);margin-top:2px;}
.faq-x .accordion-body{padding:4px 18px 20px 21px;font-size:15px;color:var(--ink-2);line-height:1.85;}

/* 底部 CTA */
.cta-block{
  margin-top:var(--sect);
}
.cta-card{
  background:var(--brand);
  border-radius:var(--r-card);
  padding:40px;
  display:grid;grid-template-columns:7fr 5fr;gap:36px;align-items:center;
  box-shadow:var(--sh-2);
}
.cta-card h2{color:#fff;font-size:28px;line-height:1.4;}
.cta-card p{color:rgba(255,255,255,.86);font-size:15.5px;margin-top:12px;max-width:34em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;}
.cta-facts{
  border-radius:var(--r-inner);
  border:1px solid rgba(255,255,255,.16);
  padding:18px;
  background:rgba(255,255,255,.06);
}
.cta-facts li{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,.9);padding:7px 0;}
.cta-facts li i{color:#fff;font-size:12px;}
.cta-facts li b{font-family:var(--mono);font-weight:700;}

/* 页脚 */
.site-footer{
  margin-top:var(--sect);
  background:var(--brand-deep);
  color:var(--on-dark);
  padding:56px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;}
.footer-brand .brand-mark{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.14);}
.site-footer p{font-size:14px;color:rgba(234,243,240,.72);margin-top:14px;line-height:1.8;max-width:26em;}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:14px;letter-spacing:.4px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.8);}
.footer-links a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--brand);text-decoration-thickness:2px;}
.footer-bottom{
  margin-top:38px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:rgba(234,243,240,.62);
}

/* 响应式 */
@media (max-width:1199px){
  .container-x{max-width:960px;}
  .page-head h1{font-size:32px;}
  .body-grid{gap:32px;}
}
@media (max-width:991px){
  :root{--sect:64px;}
  .nav-links{
    display:none;position:absolute;left:0;right:0;top:calc(100% + 10px);
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    padding:14px;box-shadow:var(--sh-2);
    display:none;grid-template-columns:1fr 1fr;gap:10px;z-index:40;
  }
  .nav-links.open{display:grid;}
  .nav-links .nav-chip{height:38px;width:100%;justify-content:flex-start;}
  .nav-panel{position:relative;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-cta{margin-left:auto;}
  .nav-cta .btn-sm-x{display:none;}
  .body-grid{grid-template-columns:1fr;}
  .sticky-side{position:static;}
  .metric-bar{grid-template-columns:1fr 1fr;}
  .quote-grid{grid-template-columns:1fr;gap:28px;}
  .cta-card{grid-template-columns:1fr;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:575px){
  :root{--sect:48px;}
  .container-x{padding:0 20px;}
  .page-head-inner{padding:26px 20px 24px;}
  .page-head h1{font-size:27px;}
  .page-head .lede{font-size:15.5px;}
  .metric-bar{grid-template-columns:1fr;}
  .mini-card{flex-direction:column;}
  .mini-card img{width:100%;flex:none;aspect-ratio:16/9;}
  .cta-text{font-size:22px;}
  .quote-text{font-size:19px;}
  .brand{font-size:17px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}