/* roulang page: index */
:root{
  --c-primary:#0FA3B1;
  --c-primary-700:#0B7A86;
  --c-primary-50:#E8F6F8;
  --c-mint:#7DE0C4;
  --c-accent:#FF5A1F;
  --c-ink:#0A2A33;
  --c-text:#16323B;
  --c-muted:#5C7A85;
  --c-bg:#F7FAFB;
  --c-surface:#FFFFFF;
  --c-line:#DCE7EC;
  --c-danger:#D64545;
  --c-success:#2E9E7A;
  --r-card:16px;--r-img:12px;--r-btn:10px;--r-badge:6px;--r-input:10px;
  --sh-1:0 1px 2px rgba(10,42,51,.06);
  --sh-2:0 14px 30px -14px rgba(10,42,51,.22);
  --ease:cubic-bezier(.2,.7,.3,1);

  --bs-primary:#0FA3B1;
  --bs-primary-rgb:15,163,177;
  --bs-body-color:#16323B;
  --bs-body-bg:#F7FAFB;
  --bs-border-color:#DCE7EC;
  --bs-link-color:#0B7A86;
  --bs-link-hover-color:#0FA3B1;
  --bs-border-radius:12px;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--c-bg);
  color:var(--c-text);
  font-size:16.5px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:800;letter-spacing:-.02em;line-height:1.3}
h1{font-size:48px;line-height:1.16;letter-spacing:-.025em}
h2{font-size:32px}
h3{font-size:21px;font-weight:700}
::selection{background:rgba(15,163,177,.22)}

.container{width:100%;max-width:1240px;margin-inline:auto;padding-inline:24px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--alt{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-weight:700;font-size:15px;line-height:1.4;
  padding:11px 20px;border:1px solid transparent;cursor:pointer;text-align:center;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.btn:active{box-shadow:inset 0 1px 3px rgba(10,42,51,.18)}
.btn:focus-visible{outline:3px solid rgba(15,163,177,.35);outline-offset:2px}
.btn-lg{padding:15px 28px;font-size:17px;min-height:54px}
.btn .arrow{width:16px;height:16px;transition:transform .2s var(--ease)}
.btn:hover .arrow{transform:translateX(3px)}
.btn-primary{
  --bs-btn-bg:var(--c-primary);--bs-btn-border-color:var(--c-primary);
  --bs-btn-color:#fff;--bs-btn-hover-color:#fff;
  --bs-btn-hover-bg:var(--c-primary-700);--bs-btn-hover-border-color:var(--c-primary-700);
  --bs-btn-active-bg:var(--c-primary-700);--bs-btn-active-border-color:var(--c-primary-700);
  --bs-btn-focus-shadow-rgb:15,163,177;
  background:var(--c-primary);border-color:var(--c-primary);color:#fff;
}
.btn-primary:hover{background:var(--c-primary-700);border-color:var(--c-primary-700);color:#fff}
.btn-accent{background:var(--c-accent);border-color:var(--c-accent);color:#fff}
.btn-accent:hover{background:#E94F16;border-color:#E94F16;color:#fff}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-ink)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary-700);background:var(--c-primary-50)}
.btn-outline-deep{background:transparent;border-color:rgba(255,255,255,.32);color:#fff}
.btn-outline-deep:hover{background:rgba(255,255,255,.1);border-color:var(--c-mint);color:#fff}
.btn-sm{padding:9px 16px;font-size:14px}

.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:15px;color:var(--c-primary-700);transition:color .2s var(--ease)}
.link-arrow svg{width:15px;height:15px;transition:transform .2s var(--ease)}
.link-arrow:hover{color:var(--c-accent)}
.link-arrow:hover svg{transform:translateX(3px)}

.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12.5px;font-weight:700;letter-spacing:.16em;color:var(--c-primary-700);margin:0 0 14px;text-transform:uppercase}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);border-radius:2px}
.lede{font-size:17px;color:var(--c-muted);max-width:62ch}

.badge-soft,.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--r-badge);font-size:12.5px;font-weight:700;
  background:var(--c-primary-50);color:var(--c-primary-700);border:1px solid rgba(15,163,177,.18);
}
.tag--plain{background:var(--c-bg);color:var(--c-muted);border-color:var(--c-line)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:1040;background:#fff;transition:box-shadow .22s var(--ease),border-color .22s var(--ease);border-bottom:1px solid transparent}
.site-header.is-scrolled{border-bottom-color:var(--c-line);box-shadow:var(--sh-1)}
.nav-shell{display:flex;align-items:center;gap:18px;height:74px}
.brand{display:inline-flex;align-items:center;gap:10px;white-space:nowrap;flex:none}
.brand-mark{width:36px;height:36px;border-radius:11px;background:var(--c-primary);display:grid;place-items:center;flex:none}
.brand-mark svg{width:20px;height:20px}
.brand-text{font-size:18px;font-weight:800;letter-spacing:-.02em;color:var(--c-ink)}
.main-nav{display:flex;align-items:center;gap:2px;flex:1;justify-content:center}
.mlink{position:relative;padding:9px 12px;font-size:15px;font-weight:600;color:var(--c-text);border-radius:8px;white-space:nowrap;transition:color .2s var(--ease)}
.mlink::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease)}
.mlink:hover{color:var(--c-primary-700)}
.mlink:hover::after{transform:scaleX(1)}
.mlink.is-active{color:var(--c-primary-700)}
.mlink.is-active::after{transform:scaleX(1);background:var(--c-accent)}
.nav-right{display:flex;align-items:center;gap:12px;flex:none}

.mega-wrap{position:relative}
.mega-trigger{display:inline-flex;align-items:center;gap:7px;padding:9px 14px;border:1px solid var(--c-line);background:#fff;border-radius:var(--r-btn);font-size:14px;font-weight:700;color:var(--c-text);cursor:pointer;transition:border-color .2s var(--ease),color .2s var(--ease)}
.mega-trigger:hover{border-color:var(--c-primary);color:var(--c-primary-700)}
.mega-trigger .chev{width:14px;height:14px;transition:transform .22s var(--ease)}
.mega-wrap.open .mega-trigger{border-color:var(--c-primary);color:var(--c-primary-700)}
.mega-wrap.open .chev{transform:rotate(180deg)}
.mega-panel{
  position:absolute;top:calc(100% + 12px);right:0;width:720px;
  display:grid;grid-template-columns:1.05fr 1fr 1fr;gap:26px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-2);padding:26px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s var(--ease),border-color .2s var(--ease);
}
.mega-wrap.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);border-color:var(--c-primary)}
.mega-title{font-size:12.5px;font-weight:700;letter-spacing:.12em;color:var(--c-muted);margin:0 0 14px;text-transform:uppercase}
.mega-links{display:grid;grid-template-columns:1fr 1fr;gap:8px 14px}
.mega-links a{font-size:14px;font-weight:600;color:var(--c-text);padding:4px 0;transition:color .18s var(--ease)}
.mega-links a:hover{color:var(--c-primary-700)}
.mega-list li{padding:9px 0;border-bottom:1px dashed var(--c-line)}
.mega-list li:last-child{border-bottom:0}
.mega-list a{display:block;font-size:14px;font-weight:600;color:var(--c-text);transition:color .18s var(--ease)}
.mega-list a:hover{color:var(--c-primary-700)}
.mega-list span{display:block;font-size:12.5px;color:var(--c-muted);margin-top:2px}
.mega-card{border:1px solid var(--c-line);border-radius:14px;overflow:hidden;background:var(--c-bg);display:flex;flex-direction:column}
.mega-card img{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--c-primary-50)}
.mega-card div{padding:14px}
.mega-card p{font-size:13.5px;color:var(--c-muted);margin:0 0 10px}
.mega-card .btn{width:100%}

.nav-burger{width:42px;height:42px;border-radius:var(--r-btn);border:1px solid var(--c-line);background:#fff;display:grid;place-items:center;cursor:pointer;transition:border-color .2s var(--ease)}
.nav-burger:hover{border-color:var(--c-primary)}
.nav-burger span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;position:relative}
.nav-burger span::before,.nav-burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px}
.nav-burger span::before{top:-6px}
.nav-burger span::after{top:6px}

.mobile-drawer{width:330px;border-left:1px solid var(--c-line)}
.mobile-drawer .offcanvas-header{border-bottom:1px solid var(--c-line);padding:18px 20px}
.mobile-drawer .offcanvas-body{padding:18px 20px 32px}
.drawer-link{display:block;padding:13px 4px;font-size:16px;font-weight:600;color:var(--c-text);border-bottom:1px solid var(--c-line);transition:color .2s var(--ease),padding-left .2s var(--ease)}
.drawer-link:hover{color:var(--c-primary-700);padding-left:10px}
.drawer-link.is-active{color:var(--c-primary-700)}
.btn-close{filter:grayscale(1) opacity(.6)}

/* ---------- hero ---------- */
.hero{position:relative;padding:68px 0 92px;overflow:hidden;background:var(--c-bg)}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(112deg,rgba(15,163,177,.07) 0 1px,transparent 1px 16px);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0));
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0));
}
.hero .container{position:relative}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;background:#fff;border:1px solid var(--c-line);font-size:13px;font-weight:700;color:var(--c-primary-700);box-shadow:var(--sh-1);margin-bottom:22px}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--c-success);display:inline-block}
.hero h1{margin-bottom:18px}
.hero-sub{font-size:17.5px;color:var(--c-muted);max-width:46ch;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.hero-facts{display:flex;flex-wrap:wrap;gap:10px 26px;font-size:14px;color:var(--c-muted)}
.hero-facts li{display:inline-flex;align-items:center;gap:8px}
.hero-facts li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--c-primary);flex:none}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);background:var(--c-primary-50);border:1px solid var(--c-line)}
.float-card{position:absolute;left:-20px;bottom:26px;display:flex;gap:22px;background:#fff;border:1px solid var(--c-line);border-radius:14px;padding:14px 20px;box-shadow:var(--sh-2)}
.float-card .fc-item{display:flex;flex-direction:column;gap:2px}
.float-card .fc-k{font-size:12.5px;color:var(--c-muted)}
.float-card .fc-v{font-size:17px;font-weight:800;color:var(--c-ink);letter-spacing:-.02em}
.float-card .fc-v em{font-style:normal;color:var(--c-accent)}

/* ---------- value ---------- */
.value-list li{display:flex;gap:22px;padding:26px 0;border-bottom:1px solid var(--c-line);transition:padding-left .22s var(--ease)}
.value-list li:first-child{padding-top:6px}
.value-list li:last-child{border-bottom:0}
.value-list li:hover{padding-left:8px}
.value-list .num{font-size:15px;font-weight:800;color:var(--c-primary);letter-spacing:.04em;padding-top:3px;flex:none}
.value-list h3{margin-bottom:6px}
.value-list p{color:var(--c-muted);margin:0;font-size:15.5px}

/* ---------- carousel ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:42px}
.ctl-group{display:flex;gap:10px}
.ctl-btn{width:44px;height:44px;border-radius:50%;border:1px solid var(--c-line);background:#fff;display:grid;place-items:center;cursor:pointer;transition:background-color .2s var(--ease),border-color .2s var(--ease)}
.ctl-btn svg{width:16px;height:16px;stroke:var(--c-ink);transition:stroke .2s var(--ease)}
.ctl-btn:hover{background:var(--c-primary);border-color:var(--c-primary)}
.ctl-btn:hover svg{stroke:#fff}
.shot-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;height:100%;transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease)}
.shot-card:hover{transform:translateY(-3px);border-color:var(--c-primary);box-shadow:var(--sh-2)}
.shot-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--c-primary-50)}
.shot-card .shot-body{padding:22px 24px 24px}
.shot-card h3{margin-bottom:8px}
.shot-card p{color:var(--c-muted);font-size:15px;margin:0}
.carousel-indicators{position:static;margin:30px 0 0;justify-content:center;gap:10px}
.carousel-indicators [data-bs-target]{width:26px;height:4px;border:0;border-radius:2px;background:var(--c-line);opacity:1;margin:0;transition:width .22s var(--ease),background-color .22s var(--ease)}
.carousel-indicators .active{width:46px;background:var(--c-primary)}

/* ---------- requirements ---------- */
.req-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px;height:100%;transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease)}
.req-card:hover{transform:translateY(-3px);border-color:var(--c-primary);box-shadow:var(--sh-2)}
.req-head{display:flex;align-items:center;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--c-line);margin-bottom:6px}
.req-ico{width:40px;height:40px;border-radius:11px;background:var(--c-primary-50);display:grid;place-items:center;flex:none}
.req-ico svg{width:20px;height:20px}
.req-head h3{font-size:19px;margin:0}
.req-head span{display:block;font-size:12.5px;color:var(--c-muted);font-weight:600}
.kv{margin:0}
.kv > div{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px dashed var(--c-line)}
.kv > div:last-child{border-bottom:0}
.kv dt{font-size:14px;color:var(--c-muted);font-weight:500;margin:0}
.kv dd{margin:0;font-size:14.5px;font-weight:700;color:var(--c-ink);text-align:right}

/* ---------- reviews ---------- */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.review-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px 24px;position:relative;transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease)}
.review-card::before{content:"";position:absolute;top:0;left:24px;width:44px;height:2px;background:var(--c-primary);border-radius:0 0 2px 2px}
.review-card:hover{transform:translateY(-3px);border-color:var(--c-primary);box-shadow:var(--sh-2)}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--c-primary-50);border:1px solid var(--c-line);display:grid;place-items:center;font-size:15px;font-weight:800;color:var(--c-primary-700);flex:none}
.review-top strong{display:block;font-size:15px;color:var(--c-ink)}
.stars{display:flex;gap:2px;margin-top:2px}
.stars svg{width:13px;height:13px}
.review-card p{font-size:15px;color:var(--c-text);margin:0 0 16px;line-height:1.72}
.review-foot{display:flex;justify-content:space-between;align-items:center;font-size:12.5px;color:var(--c-muted)}

/* ---------- download band ---------- */
.download-band{background:var(--c-ink);color:#fff;padding:76px 0;position:relative;overflow:hidden}
.download-band::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(112deg,rgba(125,224,196,.07) 0 1px,transparent 1px 18px);pointer-events:none}
.band-inner{position:relative;display:grid;grid-template-columns:1.6fr .8fr;gap:48px;align-items:center}
.download-band h2{color:#fff;margin-bottom:12px}
.download-band p{color:rgba(255,255,255,.72);max-width:56ch}
.dl-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 22px}
.checkline{display:flex;flex-wrap:wrap;gap:8px 22px;font-size:13.5px;color:rgba(255,255,255,.6)}
.checkline li{display:inline-flex;align-items:center;gap:7px}
.checkline li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--c-mint);flex:none}
.qr-card{background:#fff;border-radius:var(--r-card);padding:22px;text-align:center;color:var(--c-ink)}
.qr-box{width:100%;max-width:170px;aspect-ratio:1/1;margin:0 auto 14px;border-radius:12px;border:1px solid var(--c-line);position:relative;overflow:hidden;background-color:#fff;background-image:repeating-conic-gradient(var(--c-ink) 0% 25%,#fff 0% 50%);background-size:11px 11px}
.qr-box span{position:absolute;background:#fff;border:3px solid var(--c-ink);border-radius:6px;width:34px;height:34px}
.qr-box span:nth-child(1){top:10px;left:10px}
.qr-box span:nth-child(2){top:10px;right:10px}
.qr-box span:nth-child(3){bottom:10px;left:10px}
.qr-card strong{display:block;font-size:15px;margin-bottom:4px}
.qr-card small{color:var(--c-muted);font-size:12.5px}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:24px}
.news-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease)}
.news-card:hover{transform:translateY(-3px);border-color:var(--c-primary);box-shadow:var(--sh-2)}
.news-card a{display:flex;height:100%}
.news-card--lead{grid-row:span 3}
.news-card--lead a{flex-direction:column}
.news-thumb{flex:none;background:var(--c-primary-50);overflow:hidden}
.news-card--lead .news-thumb{width:100%}
.news-card--lead .news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover}
.news-card:not(.news-card--lead) .news-thumb{width:158px}
.news-card:not(.news-card--lead) .news-thumb img{width:100%;height:100%;min-height:132px;object-fit:cover}
.news-body{padding:22px 24px;display:flex;flex-direction:column;gap:9px;flex:1}
.news-card--lead .news-body{padding:26px 28px 28px}
.news-body h3{font-size:18px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card--lead .news-body h3{font-size:22px}
.news-body p{font-size:14.5px;color:var(--c-muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;gap:14px;font-size:12.5px;color:var(--c-muted);margin-top:auto;padding-top:6px}
.empty-state{background:#fff;border:1px dashed var(--c-line);border-radius:var(--r-card);padding:56px 24px;text-align:center;color:var(--c-muted)}
.empty-state .empty-ico{width:52px;height:52px;border-radius:14px;background:var(--c-primary-50);display:grid;place-items:center;margin:0 auto 16px}

/* ---------- faq ---------- */
.faq-acc .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--c-line)}
.faq-acc .accordion-item:first-child{border-top:1px solid var(--c-line)}
.faq-acc .accordion-header{margin:0}
.faq-acc .accordion-button{
  display:flex;align-items:center;gap:16px;width:100%;
  background:transparent;border:0;box-shadow:none;padding:22px 4px;
  font-size:17px;font-weight:700;color:var(--c-ink);text-align:left;
  transition:color .2s var(--ease);min-height:62px;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--c-primary-700);background:transparent;box-shadow:none}
.faq-acc .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq-acc .accordion-button::after{display:none}
.faq-no{font-size:13px;font-weight:800;color:var(--c-primary);flex:none;letter-spacing:.04em;width:26px}
.faq-q{flex:1}
.faq-sign{position:relative;width:20px;height:20px;flex:none}
.faq-sign::before,.faq-sign::after{content:"";position:absolute;background:var(--c-primary-700);border-radius:2px;transition:transform .22s var(--ease)}
.faq-sign::before{left:0;top:9px;width:20px;height:2px}
.faq-sign::after{left:9px;top:0;width:2px;height:20px}
.faq-acc .accordion-button:not(.collapsed) .faq-sign::after{transform:rotate(90deg) scaleY(0)}
.faq-acc .accordion-body{padding:0 4px 26px 42px;font-size:15.5px;color:var(--c-muted);line-height:1.8}
.faq-acc .accordion-collapse{border:0}

/* ---------- cta banner ---------- */
.cta-banner{background:var(--c-primary-50);border:1px solid rgba(15,163,177,.2);border-radius:24px;padding:52px 48px;display:flex;align-items:center;justify-content:space-between;gap:36px}
.cta-banner h2{font-size:28px;margin-bottom:10px}
.cta-banner p{color:var(--c-muted);margin:0;max-width:52ch}
.cta-actions{display:flex;gap:12px;flex:none}

/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.foot-brand .brand-text{color:#fff}
.foot-brand p{font-size:14.5px;max-width:34ch;margin:16px 0 0;color:rgba(255,255,255,.62)}
.foot-col h4{color:#fff;font-size:15px;margin:0 0 18px;letter-spacing:.02em}
.foot-col li{margin-bottom:11px}
.foot-col a{font-size:14.5px;color:rgba(255,255,255,.72);transition:color .2s var(--ease)}
.foot-col a:hover{color:var(--c-mint)}
.foot-note{font-size:14px;color:rgba(255,255,255,.62);line-height:1.9}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5)}

/* ---------- reveal ---------- */
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.js .reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
  .js .reveal{opacity:1!important;transform:none!important}
  html{scroll-behavior:auto}
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  h1{font-size:40px}
  h2{font-size:27px}
  .hero{padding:52px 0 72px}
  .section{padding:80px 0}
  .review-grid{grid-template-columns:repeat(2,1fr)}
  .mega-panel{width:640px}
}
@media (max-width:991px){
  .section{padding:64px 0}
  .hero{padding:44px 0 60px}
  .hero-visual{margin-top:12px}
  .float-card{left:12px;bottom:12px}
  .band-inner{grid-template-columns:1fr;gap:32px}
  .news-grid{grid-template-columns:1fr;gap:18px}
  .news-card--lead{grid-row:auto}
  .news-card--lead a{flex-direction:row}
  .news-card--lead .news-thumb{width:40%}
  .cta-banner{flex-direction:column;align-items:flex-start;padding:38px 28px}
}
@media (max-width:767px){
  body{font-size:16px}
  h1{font-size:27px}
  h2{font-size:22px}
  h3{font-size:19px}
  .container{padding-inline:16px}
  .section{padding:56px 0}
  .hero{padding:34px 0 52px}
  .hero-sub{font-size:16px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-facts{gap:8px 18px;font-size:13.5px}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px}
  .review-grid{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:14px;padding-bottom:10px;margin-inline:-16px;padding-inline:16px}
  .review-card{min-width:78%;scroll-snap-align:start;margin-top:0!important}
  .value-list li{gap:14px;padding:20px 0}
  .kv > div{flex-direction:column;align-items:flex-start;gap:2px}
  .kv dd{text-align:left}
  .news-card--lead a{flex-direction:column}
  .news-card--lead .news-thumb{width:100%}
  .news-card:not(.news-card--lead) .news-thumb{width:118px}
  .news-body{padding:18px}
  .dl-actions{flex-direction:column}
  .dl-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .foot-brand{grid-column:1/-1}
  .foot-bottom{flex-direction:column;gap:8px}
  .faq-acc .accordion-body{padding-left:4px}
  .faq-acc .accordion-button{font-size:16px;padding:18px 2px}
}
@media (max-width:575px){
  .section{padding:48px 0}
  .req-card,.review-card,.shot-card .shot-body{padding:20px}
  .float-card{display:none}
  .hero::before{display:none}
  .cta-banner{padding:30px 20px;border-radius:18px}
  .footer-grid{grid-template-columns:1fr}
  .mega-links{grid-template-columns:1fr}
}

/* roulang page: article */
:root{
  --c-primary:#0FA3B1;
  --c-primary-700:#0B7A86;
  --c-primary-50:#E8F6F8;
  --c-mint:#7DE0C4;
  --c-accent:#FF5A1F;
  --c-ink:#0A2A33;
  --c-text:#16323B;
  --c-muted:#5C7A85;
  --c-bg:#F7FAFB;
  --c-surface:#FFFFFF;
  --c-line:#DCE7EC;
  --c-danger:#D64545;
  --c-success:#2E9E7A;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(10,42,51,.06);
  --sh-2:0 14px 30px -14px rgba(10,42,51,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease)}
a:hover{color:var(--c-primary-700)}
button{font:inherit;cursor:pointer;border:0;background:none}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:800;letter-spacing:-.02em;line-height:1.28}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(15,163,177,.35);outline-offset:2px}
.container{width:100%!important;max-width:1240px!important;margin:0 auto;padding:0 24px!important}
.btn-primary,.card,.navbar{--bs-btn-bg:var(--c-primary)}
.btn-primary{background:var(--c-primary);border-color:var(--c-primary);border-radius:var(--r-btn);box-shadow:none}
.btn-primary:hover{background:var(--c-primary-700);border-color:var(--c-primary-700)}
.card{border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1)}
.accordion-button::after{display:none}
.accordion-button{box-shadow:none!important;background:transparent}
.breadcrumb-item+.breadcrumb-item::before{content:"/"!important;color:var(--c-line)}
.reveal{opacity:0;transform:translateY(12px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid transparent;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.site-header.is-scrolled{border-bottom-color:var(--c-line);box-shadow:0 8px 24px -20px rgba(10,42,51,.45)}
.nav-shell{display:flex;align-items:center;gap:26px;min-height:74px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--c-primary),var(--c-primary-700));display:grid;place-items:center;box-shadow:0 8px 18px -12px rgba(11,122,134,.95)}
.brand-mark svg{width:22px;height:22px}
.brand-text{font-size:19px;font-weight:800;letter-spacing:-.02em;color:var(--c-ink);white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:26px}
.mlink{position:relative;font-size:15.5px;font-weight:500;color:var(--c-text);padding:6px 2px}
.mlink::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease)}
.mlink:hover::after,.mlink.is-active::after{transform:scaleX(1)}
.mlink:hover{color:var(--c-primary-700)}
.mlink.is-active{color:var(--c-primary-700);font-weight:700}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.mega-wrap{position:relative}
.mega-trigger{display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border:1px solid var(--c-line);border-radius:var(--r-btn);background:#fff;color:var(--c-ink);font-weight:600;font-size:15px;transition:all .2s var(--ease)}
.mega-trigger:hover{border-color:var(--c-primary);color:var(--c-primary-700)}
.mega-trigger .chev{width:16px;height:16px;transition:transform .2s var(--ease)}
.mega-wrap.is-open .mega-trigger{border-color:var(--c-primary);color:var(--c-primary-700)}
.mega-wrap.is-open .chev{transform:rotate(180deg)}
.mega-panel{position:absolute;top:calc(100% + 10px);right:0;width:720px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-2);padding:24px;display:grid;grid-template-columns:1.15fr 1.15fr 1fr;gap:24px;opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s var(--ease),border-color .2s var(--ease)}
.mega-wrap.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);border-color:var(--c-primary)}
.mega-title{font-size:12.5px;font-weight:700;letter-spacing:.08em;color:var(--c-muted);margin-bottom:12px}
.mega-links{display:grid;grid-template-columns:1fr 1fr;gap:6px 14px}
.mega-links a{font-size:14.5px;color:var(--c-text);padding:5px 0}
.mega-links a:hover{color:var(--c-primary-700)}
.mega-list li a{display:block;padding:8px 0;border-bottom:1px dashed var(--c-line);font-size:14.5px;color:var(--c-text)}
.mega-list li:last-child a{border-bottom:0}
.mega-list li a:hover{color:var(--c-primary-700)}
.mega-list span{display:block;font-size:12.5px;color:var(--c-muted);margin-top:2px}
.mega-card{display:block;background:var(--c-primary-50);border:1px solid var(--c-line);border-radius:var(--r-img);overflow:hidden}
.mega-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--c-primary-50)}
.mega-card p{padding:12px 14px;font-size:13.5px;color:var(--c-text)}
.mega-card p strong{display:block;color:var(--c-ink);font-size:14.5px;margin-bottom:2px}
.nav-toggle{display:none;align-items:center;gap:8px;padding:9px 14px;border:1px solid var(--c-line);border-radius:var(--r-btn);background:#fff;color:var(--c-ink);font-weight:600;font-size:15px}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary-700)}
.mobile-nav{display:none;overflow:hidden;max-height:0;transition:max-height .3s var(--ease)}
.mobile-nav-inner{padding:8px 0 18px;display:grid;gap:0}
.mobile-nav a{display:block;padding:13px 4px;border-bottom:1px solid var(--c-line);font-size:16px;color:var(--c-ink)}
.mobile-nav a:last-child{border-bottom:0}
.mobile-nav a:hover{color:var(--c-primary-700)}

/* 面包屑与文章页头 */
.article-head{background:var(--c-bg);background-image:repeating-linear-gradient(115deg,rgba(15,163,177,.07) 0 1px,transparent 1px 15px);border-bottom:1px solid var(--c-line);padding:26px 0 42px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--c-muted);margin-bottom:22px}
.crumb a{color:var(--c-muted)}
.crumb a:hover{color:var(--c-primary-700)}
.crumb .sep{color:#B9CFD6}
.crumb .now{color:var(--c-ink);font-weight:600;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cat-badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-badge);background:var(--c-primary-50);border:1px solid rgba(15,163,177,.22);color:var(--c-primary-700);font-size:13px;font-weight:700}
.article-title{font-size:clamp(28px,3.5vw,46px);line-height:1.22;margin:16px 0 18px;max-width:920px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;font-size:13.5px;color:var(--c-muted)}
.meta-row .dot{width:1px;height:12px;background:var(--c-line)}
.meta-row strong{color:var(--c-ink);font-weight:700}

/* 正文布局 */
.article-wrap{padding:56px 0 96px}
.article-layout{display:grid;grid-template-columns:minmax(0,780px) 260px;gap:56px;justify-content:space-between;align-items:start}
.article-side{position:sticky;top:96px;display:grid;gap:16px;max-height:calc(100vh - 120px);overflow-y:auto;padding-right:2px}
.side-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-1)}
.side-title{font-size:13px;font-weight:800;letter-spacing:.06em;color:var(--c-ink);margin-bottom:14px}
.side-links li a{display:block;padding:9px 0;border-bottom:1px dashed var(--c-line);font-size:14.5px;color:var(--c-text)}
.side-links li:last-child a{border-bottom:0}
.side-links li a:hover{color:var(--c-primary-700);padding-left:4px}
.side-hot li a{display:flex;gap:10px;align-items:flex-start;padding:9px 0;border-bottom:1px dashed var(--c-line);font-size:14px;line-height:1.55;color:var(--c-text)}
.side-hot li:last-child a{border-bottom:0}
.side-hot li a:hover{color:var(--c-primary-700)}
.hot-img{flex:0 0 56px;width:56px;aspect-ratio:1/1;border-radius:9px;overflow:hidden;background:var(--c-primary-50)}
.hot-img img{width:100%;height:100%;object-fit:cover}
.side-cta{background:var(--c-primary-50);border-color:rgba(15,163,177,.22)}
.side-cta p{font-size:14px;color:var(--c-text);margin-bottom:14px}

/* 文章正文排版 */
.prose{font-size:17.5px;line-height:1.85;color:var(--c-text)}
.prose>*:first-child{margin-top:0}
.prose p{margin:0 0 1.2em}
.prose h2{font-size:26px;line-height:1.4;margin:1.8em 0 .65em;padding-left:14px;position:relative}
.prose h2::before{content:"";position:absolute;left:0;top:.34em;bottom:.34em;width:3px;border-radius:2px;background:var(--c-primary)}
.prose h3{font-size:20px;margin:1.6em 0 .55em}
.prose h4{font-size:17.5px;margin:1.4em 0 .5em}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:1.45em}
.prose ul{list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin:.4em 0}
.prose li::marker{color:var(--c-primary)}
.prose blockquote{margin:1.5em 0;padding:16px 22px;background:var(--c-bg);border-left:3px solid var(--c-primary);border-radius:0 var(--r-img) var(--r-img) 0}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{width:100%;border-radius:var(--r-img);margin:1.5em 0;background:var(--c-primary-50)}
.prose figure{margin:1.5em 0}
.prose figcaption{text-align:center;font-size:13.5px;color:var(--c-muted);margin-top:.6em}
.prose a{color:var(--c-primary-700);border-bottom:1px solid rgba(15,163,177,.4)}
.prose a:hover{color:var(--c-accent);border-bottom-color:rgba(255,90,31,.4)}
.prose strong{color:var(--c-ink)}
.prose table{width:100%;border-collapse:collapse;font-size:15px;background:#fff}
.prose .table-wrap{overflow-x:auto;border:1px solid var(--c-line);border-radius:var(--r-img);margin:1.5em 0}
.prose th,.prose td{padding:11px 14px;border-bottom:1px solid var(--c-line);text-align:left;white-space:nowrap}
.prose th{background:var(--c-primary-50);color:var(--c-ink);font-weight:700}
.prose tr:last-child td{border-bottom:0}
.prose code{background:var(--c-primary-50);color:var(--c-primary-700);padding:2px 6px;border-radius:6px;font-size:.92em}
.prose pre{background:var(--c-ink);color:#E6F4F6;padding:16px 18px;border-radius:var(--r-img);overflow-x:auto;margin:1.5em 0}
.prose pre code{background:none;color:inherit;padding:0}
.prose hr{border:0;border-top:1px solid var(--c-line);margin:2em 0}

/* 标签与操作行 */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px;padding-top:26px;border-top:1px solid var(--c-line)}
.tag{display:inline-flex;align-items:center;padding:6px 14px;border:1px solid var(--c-line);border-radius:999px;background:#fff;font-size:13.5px;color:var(--c-muted)}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary-700)}
.act-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-top:22px}
.act-left{display:flex;flex-wrap:wrap;gap:10px}
.act-btn{display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border:1px solid var(--c-line);border-radius:var(--r-btn);background:#fff;font-size:14px;color:var(--c-text)}
.act-btn:hover{border-color:var(--c-primary);color:var(--c-primary-700)}
.act-btn svg{width:16px;height:16px}
.back-link{font-size:14.5px;font-weight:600;color:var(--c-primary-700);display:inline-flex;align-items:center;gap:6px}
.back-link:hover{color:var(--c-accent)}
.back-link .arw{transition:transform .2s var(--ease)}
.back-link:hover .arw{transform:translateX(-3px)}

/* 空状态 */
.empty-state{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:56px 32px;text-align:center;box-shadow:var(--sh-1)}
.empty-icon{width:64px;height:64px;margin:0 auto 20px;border-radius:16px;background:var(--c-primary-50);display:grid;place-items:center;color:var(--c-primary-700)}
.empty-icon svg{width:30px;height:30px}
.empty-state h2{font-size:24px;margin-bottom:10px}
.empty-state p{color:var(--c-muted);font-size:15.5px;margin-bottom:24px}

/* 按钮 */
.btn-solid,.btn-ghost,.btn-accent{display:inline-flex;align-items:center;justify-content:center;gap:10px;height:52px;padding:0 26px;border-radius:var(--r-btn);font-size:16.5px;font-weight:700;border:1px solid transparent;transition:all .2s var(--ease)}
.btn-solid{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.btn-solid:hover{background:var(--c-primary-700);border-color:var(--c-primary-700);color:#fff}
.btn-accent{background:var(--c-accent);border-color:var(--c-accent);color:#fff}
.btn-accent:hover{background:#E64A12;border-color:#E64A12;color:#fff}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-ink)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary-700)}
.btn-sm{height:40px;padding:0 18px;font-size:14.5px}
.btn-solid .arw,.btn-accent .arw,.btn-ghost .arw{transition:transform .2s var(--ease)}
.btn-solid:hover .arw,.btn-accent:hover .arw,.btn-ghost:hover .arw{transform:translateX(3px)}
.btn-solid svg,.btn-accent svg,.btn-ghost svg{width:19px;height:19px}
.btn-solid:active,.btn-accent:active,.btn-ghost:active{box-shadow:inset 0 1px 3px rgba(10,42,51,.35)}

/* 区块标题 */
.sec{padding:0 0 88px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px}
.sec-head h2{font-size:clamp(22px,2.4vw,32px)}
.sec-head .more{font-size:14.5px;font-weight:600;color:var(--c-primary-700);display:inline-flex;align-items:center;gap:6px}
.sec-head .more:hover{color:var(--c-accent)}
.sec-head .more .arw{transition:transform .2s var(--ease)}
.sec-head .more:hover .arw{transform:translateX(3px)}

/* 相关推荐 */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.rel-card{display:flex;gap:14px;align-items:center;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:14px;box-shadow:var(--sh-1);transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease)}
.rel-card:hover{transform:translateY(-3px);border-color:var(--c-primary);box-shadow:var(--sh-2)}
.rel-thumb{flex:0 0 84px;width:84px;aspect-ratio:1/1;border-radius:var(--r-img);overflow:hidden;background:var(--c-primary-50)}
.rel-thumb img{width:100%;height:100%;object-fit:cover}
.rel-body h3{font-size:15.5px;line-height:1.5;font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-body span{display:block;font-size:13px;color:var(--c-muted);margin-top:6px}

/* 上一篇下一篇 */
.pn-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.pn-card{display:block;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--sh-1);transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease)}
.pn-card:hover{transform:translateY(-3px);border-color:var(--c-primary);box-shadow:var(--sh-2)}
.pn-label{display:block;font-size:12.5px;font-weight:700;letter-spacing:.06em;color:var(--c-primary-700);margin-bottom:8px}
.pn-title{display:block;font-size:16.5px;font-weight:700;color:var(--c-ink);line-height:1.55}

/* 底部 CTA */
.cta-band{background:var(--c-ink);border:1px solid rgba(255,255,255,.08);border-radius:20px;padding:42px 44px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px)}
.cta-band p{color:#9DB9C0;font-size:15.5px;margin-top:10px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* 页脚 */
.site-footer{background:var(--c-ink);color:#C9DDE3;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:44px}
.foot-brand .brand-text{display:block;color:#fff;font-size:19px;margin-bottom:14px}
.foot-brand p{font-size:14.5px;line-height:1.85;color:#9DB9C0}
.foot-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.foot-col ul li{margin-bottom:10px}
.foot-col a{font-size:14.5px;color:#9DB9C0}
.foot-col a:hover{color:var(--c-primary)}
.foot-note{font-size:14.5px;line-height:1.85;color:#9DB9C0}
.foot-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0;font-size:13.5px;color:#7E9AA2}

/* 响应式 */
@media (max-width:1199.98px){
  .main-nav{display:none}
  .mega-wrap{display:none}
  .nav-toggle{display:inline-flex}
  .mobile-nav{display:block}
  .mobile-nav.is-open{max-height:660px}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0}
  .article-side{display:none}
  .mega-panel{width:100%}
}
@media (max-width:991.98px){
  .article-wrap{padding:44px 0 76px}
  .sec{padding-bottom:72px}
  .rel-grid{grid-template-columns:1fr}
  .cta-band{padding:34px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  .container{padding:0 16px!important}
  .article-head{padding:20px 0 32px}
  .article-title{font-size:28px}
  .article-wrap{padding:36px 0 64px}
  .prose{font-size:16.5px;line-height:1.8}
  .prose h2{font-size:22px}
  .prose h3{font-size:18px}
  .pn-grid{grid-template-columns:1fr}
  .sec-head{flex-direction:column;align-items:flex-start;gap:10px}
  .cta-actions{width:100%}
  .cta-actions .btn-solid,.cta-actions .btn-ghost{width:100%}
  .crumb .now{max-width:200px}
}
@media (max-width:575.98px){
  .sec{padding-bottom:52px}
  .rel-card{padding:12px}
  .rel-thumb{flex:0 0 68px;width:68px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .empty-state{padding:40px 20px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --c-primary:#0FA3B1;
  --c-primary-700:#0B7A86;
  --c-primary-50:#E8F6F8;
  --c-mint:#7DE0C4;
  --c-accent:#FF5A1F;
  --c-ink:#0A2A33;
  --c-text:#16323B;
  --c-muted:#5C7A85;
  --c-bg:#F7FAFB;
  --c-surface:#FFFFFF;
  --c-line:#DCE7EC;
  --c-danger:#D64545;
  --c-success:#2E9E7A;

  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:6px;
  --r-input:10px;

  --sh-1:0 1px 2px rgba(10,42,51,.06);
  --sh-2:0 14px 30px -14px rgba(10,42,51,.22);

  --ease:cubic-bezier(.2,.7,.3,1);
  --gap-section:104px;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:17px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--c-primary-700);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--c-primary);}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding-left:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:4px;}

.container{
  max-width:1240px;
  padding-left:24px;
  padding-right:24px;
  margin-left:auto;
  margin-right:auto;
}
.section{padding:var(--gap-section) 0;}
.section-sm{padding:64px 0;}

/* ---------- 通用组件 ---------- */
.btn-main,
.btn-ghost,
.btn-line{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  line-height:1;
  padding:0 26px;
  height:54px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
  white-space:nowrap;
}
.btn-main{background:var(--c-primary);color:#fff;}
.btn-main:hover{background:var(--c-primary-700);color:#fff;}
.btn-main:active{box-shadow:inset 0 0 0 1px rgba(255,255,255,.35);}
.btn-main .ico{transition:transform .2s var(--ease);}
.btn-main:hover .ico{transform:translateX(3px);}
.btn-ghost{background:transparent;color:var(--c-ink);border-color:var(--c-line);}
.btn-ghost:hover{color:var(--c-primary-700);border-color:var(--c-primary);background:#fff;}
.btn-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.42);}
.btn-line:hover{border-color:var(--c-primary);color:#fff;background:rgba(15,163,177,.18);}
.btn-sm{height:44px;font-size:15px;padding:0 20px;}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  font-weight:600;
  padding:5px 12px;
  border-radius:var(--r-badge);
  background:var(--c-primary-50);
  color:var(--c-primary-700);
  border:1px solid var(--c-line);
  letter-spacing:.02em;
}
.tag-plain{background:var(--c-bg);color:var(--c-muted);}

.h2-title{
  font-size:32px;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--c-ink);
  line-height:1.3;
}
.h3-title{
  font-size:21px;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--c-ink);
  line-height:1.45;
}
.lead-text{color:var(--c-muted);font-size:16px;}
.divider{height:1px;background:var(--c-line);border:0;margin:0;}

.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.site-header.is-stuck{
  border-bottom-color:var(--c-line);
  box-shadow:0 6px 18px -14px rgba(10,42,51,.4);
}
.nav-shell{
  display:flex;
  align-items:center;
  gap:28px;
  height:76px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:36px;height:36px;
  border-radius:10px;
  background:linear-gradient(140deg,var(--c-primary),var(--c-primary-700));
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;
}
.brand-mark svg{width:21px;height:21px;}
.brand-text{
  font-size:19px;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--c-ink);
  white-space:nowrap;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
}
.mlink{
  position:relative;
  font-size:15.5px;
  font-weight:600;
  color:var(--c-text);
  padding:10px 14px;
  border-radius:8px;
}
.mlink::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:4px;
  height:2px;
  background:var(--c-primary);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s var(--ease);
}
.mlink:hover{color:var(--c-primary-700);}
.mlink:hover::after{transform:scaleX(1);}
.mlink.is-active{color:var(--c-primary-700);}
.mlink.is-active::after{transform:scaleX(1);background:var(--c-accent);}

.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0;}

.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:44px;
  padding:0 18px;
  font-size:15px;
  font-weight:700;
  color:var(--c-ink);
  background:var(--c-primary-50);
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease),background-color .2s var(--ease);
}
.mega-trigger:hover{border-color:var(--c-primary);color:var(--c-primary-700);}
.mega-trigger .chev{width:16px;height:16px;transition:transform .25s var(--ease);}
.mega-wrap.is-open .mega-trigger{border-color:var(--c-primary);color:var(--c-primary-700);background:#fff;}
.mega-wrap.is-open .mega-trigger .chev{transform:rotate(180deg);}

.mega-panel{
  position:absolute;
  top:calc(100% + 8px);
  right:0;
  width:720px;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-2);
  padding:26px;
  display:grid;
  grid-template-columns:1.15fr 1.1fr 1fr;
  gap:24px;
  opacity:0;
  visibility:hidden;
  transform:translateY(-6px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
}
.mega-wrap.is-open .mega-panel{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
  border-color:var(--c-primary);
}
.mega-title{
  font-size:12.5px;
  font-weight:800;
  letter-spacing:.14em;
  color:var(--c-muted);
  margin-bottom:14px;
}
.mega-links{display:grid;grid-template-columns:1fr 1fr;gap:8px 14px;}
.mega-links a{
  font-size:14.5px;
  font-weight:600;
  color:var(--c-text);
  padding:6px 0;
  border-radius:6px;
}
.mega-links a:hover{color:var(--c-primary-700);}
.mega-list li + li{margin-top:12px;}
.mega-list a{
  display:block;
  font-size:14.5px;
  font-weight:700;
  color:var(--c-ink);
  line-height:1.5;
}
.mega-list a span{
  display:block;
  font-size:12.5px;
  font-weight:500;
  color:var(--c-muted);
  margin-top:3px;
}
.mega-list a:hover{color:var(--c-primary-700);}
.mega-card{
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  background:var(--c-bg);
}
.mega-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;background:var(--c-primary-50);}
.mega-card-body{padding:14px 16px 18px;}
.mega-card-body p{font-size:13.5px;color:var(--c-muted);line-height:1.6;margin-bottom:12px;}
.mega-card-body a{
  font-size:14px;
  font-weight:700;
  color:var(--c-primary-700);
  display:inline-flex;
  align-items:center;
  gap:6px;
}

.nav-toggle{
  width:44px;height:44px;
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  background:#fff;
  display:inline-flex;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  gap:5px;
  cursor:pointer;
}
.nav-toggle .bar{width:19px;height:2px;background:var(--c-ink);border-radius:2px;display:block;}

.mob-nav{width:min(88vw,360px);}
.mob-nav .offcanvas-header{
  border-bottom:1px solid var(--c-line);
  padding:18px 20px;
}
.mob-nav .offcanvas-body{padding:16px 20px 28px;}
.mob-link{
  display:block;
  padding:13px 4px;
  font-size:16px;
  font-weight:700;
  color:var(--c-ink);
  border-bottom:1px solid var(--c-line);
}
.mob-link.is-active{color:var(--c-primary-700);}
.mob-acc{margin-top:18px;}
.mob-acc .accordion-item{border:0;}
.mob-acc .accordion-button{
  font-size:15px;
  font-weight:700;
  color:var(--c-ink);
  background:var(--c-bg);
  border-radius:var(--r-btn) !important;
  padding:12px 16px;
  box-shadow:none;
}
.mob-acc .accordion-button:not(.collapsed){
  background:var(--c-primary-50);
  color:var(--c-primary-700);
}
.mob-acc .accordion-button::after{width:14px;height:14px;background-size:14px;}
.mob-acc .accordion-body{padding:10px 4px 0;}
.mob-acc .accordion-body a{
  display:block;
  padding:9px 0;
  font-size:14.5px;
  font-weight:600;
  color:var(--c-text);
  border-bottom:1px dashed var(--c-line);
}

/* ---------- 页头横幅 ---------- */
.page-band{
  position:relative;
  border-radius:0 0 var(--r-card) var(--r-card);
  overflow:hidden;
  background:var(--c-primary-50);
}
.page-band .band-img{
  width:100%;
  aspect-ratio:21/9;
  object-fit:cover;
  border-radius:0;
}
.page-band::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(10,42,51,.72) 0%,rgba(10,42,51,.42) 48%,rgba(10,42,51,.14) 100%);
}
.page-band .band-text{
  position:absolute;
  left:0;right:0;bottom:0;
  z-index:2;
  padding:0 24px 34px;
}
.band-inner{max-width:1240px;margin:0 auto;}
.band-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.1em;
  color:#fff;
  background:rgba(255,90,31,.92);
  padding:6px 12px;
  border-radius:var(--r-badge);
  margin-bottom:14px;
}
.band-text h1{
  font-size:48px;
  line-height:1.16;
  font-weight:800;
  letter-spacing:-.02em;
  color:#fff;
  max-width:820px;
}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:20px 0 0;}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-size:13.5px;
  color:var(--c-muted);
}
.crumb a{color:var(--c-muted);font-weight:600;}
.crumb a:hover{color:var(--c-primary-700);}
.crumb .sep{color:var(--c-line);font-weight:400;}
.crumb .now{color:var(--c-ink);font-weight:700;}

/* ---------- 导语 ---------- */
.intro-block{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:56px;
  align-items:end;
  padding:36px 0 44px;
}
.intro-block p{
  color:var(--c-muted);
  font-size:17px;
  line-height:1.8;
  margin-top:18px;
  max-width:640px;
}
.intro-facts{
  border-left:1px solid var(--c-line);
  padding-left:28px;
  display:grid;
  gap:16px;
}
.fact-row{display:flex;justify-content:space-between;gap:16px;font-size:15px;}
.fact-row .k{color:var(--c-muted);}
.fact-row .v{color:var(--c-ink);font-weight:700;}

/* ---------- 粘性子导航 ---------- */
.subnav-bar{
  position:sticky;
  top:76px;
  z-index:1010;
  background:rgba(247,250,251,.94);
  backdrop-filter:blur(6px);
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
}
.subnav{
  display:flex;
  align-items:center;
  gap:6px;
  overflow-x:auto;
  scrollbar-width:none;
}
.subnav::-webkit-scrollbar{display:none;}
.subnav a{
  position:relative;
  flex-shrink:0;
  padding:16px 16px;
  font-size:15px;
  font-weight:700;
  color:var(--c-muted);
  white-space:nowrap;
}
.subnav a::after{
  content:"";
  position:absolute;
  left:16px;right:16px;bottom:0;
  height:2px;
  background:var(--c-primary);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s var(--ease);
}
.subnav a:hover{color:var(--c-primary-700);}
.subnav a.is-current{color:var(--c-ink);}
.subnav a.is-current::after{transform:scaleX(1);background:var(--c-accent);}

/* ---------- Zigzag 分段 ---------- */
.zig{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  align-items:center;
  padding:56px 0;
  border-bottom:1px solid var(--c-line);
}
.zig:last-child{border-bottom:0;}
.zig-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  background:var(--c-primary-50);
  box-shadow:var(--sh-1);
}
.zig-media{position:relative;}
.zig-num{
  position:absolute;
  top:-14px;
  left:-14px;
  width:46px;height:46px;
  border-radius:12px;
  background:#fff;
  border:1px solid var(--c-line);
  color:var(--c-primary-700);
  font-weight:800;
  font-size:15px;
  display:flex;align-items:center;justify-content:center;
  letter-spacing:.02em;
}
.zig-body h2{
  font-size:30px;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--c-ink);
  line-height:1.3;
  margin-bottom:8px;
}
.zig-body h2::before{
  content:"";
  display:block;
  width:34px;height:3px;
  background:var(--c-primary);
  border-radius:2px;
  margin-bottom:18px;
}
.zig-body p{color:var(--c-text);margin-top:14px;line-height:1.8;}
.zig-body p.note{color:var(--c-muted);font-size:15.5px;}
.zig.is-reverse .zig-media{order:2;}
.zig.is-reverse .zig-body{order:1;}

/* ---------- 数据卡组 ---------- */
.data-grid{
  display:grid;
  grid-template-columns:1.05fr 1fr 1.35fr;
  gap:24px;
  align-items:stretch;
  margin-top:44px;
}
.data-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:28px 26px;
  box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.data-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-primary);}
.data-card .num{
  font-size:46px;
  font-weight:800;
  letter-spacing:-.03em;
  color:var(--c-primary);
  line-height:1.05;
}
.data-card .num small{font-size:18px;font-weight:700;margin-left:4px;letter-spacing:0;}
.data-card .cap{
  font-size:15px;
  font-weight:700;
  color:var(--c-ink);
  margin-top:12px;
}
.data-card .sub{font-size:14px;color:var(--c-muted);margin-top:6px;line-height:1.65;}
.data-card.is-offset{margin-top:22px;}
.data-card.is-note{background:var(--c-ink);border-color:var(--c-ink);color:#fff;}
.data-card.is-note .cap{color:#fff;font-size:17px;}
.data-card.is-note p{font-size:15px;color:rgba(255,255,255,.78);margin-top:10px;line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
.faq-side p{color:var(--c-muted);margin-top:16px;font-size:15.5px;line-height:1.8;}
.faq-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item + .faq-item{margin-top:14px;}
.faq-item:hover{border-color:var(--c-primary);}
.faq-q{
  width:100%;
  min-height:62px;
  display:flex;
  align-items:center;
  gap:18px;
  padding:16px 22px;
  background:transparent;
  border:0;
  text-align:left;
  cursor:pointer;
}
.faq-num{
  font-size:14px;
  font-weight:800;
  color:var(--c-primary);
  letter-spacing:.04em;
  flex-shrink:0;
}
.faq-txt{
  flex:1;
  font-size:16.5px;
  font-weight:700;
  color:var(--c-ink);
  line-height:1.5;
}
.faq-sign{
  position:relative;
  width:20px;height:20px;
  flex-shrink:0;
  transition:transform .25s var(--ease);
}
.faq-sign::before,
.faq-sign::after{
  content:"";
  position:absolute;
  background:var(--c-primary-700);
  border-radius:2px;
  transition:background-color .2s var(--ease);
}
.faq-sign::before{left:0;top:9px;width:20px;height:2px;}
.faq-sign::after{left:9px;top:0;width:2px;height:20px;}
.faq-q[aria-expanded="true"] .faq-sign{transform:rotate(135deg);}
.faq-q[aria-expanded="true"] .faq-sign::before,
.faq-q[aria-expanded="true"] .faq-sign::after{background:var(--c-accent);}
.faq-q[aria-expanded="true"] + .collapse .faq-a{border-top:1px solid var(--c-line);}
.faq-a{
  padding:18px 22px 22px 60px;
  background:var(--c-bg);
  color:var(--c-text);
  font-size:15.5px;
  line-height:1.8;
}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--c-ink);
  border-radius:var(--r-card);
  padding:46px 44px;
  display:grid;
  grid-template-columns:1fr auto;
  gap:36px;
  align-items:center;
  border:1px solid rgba(255,255,255,.08);
}
.cta-band h2{
  font-size:28px;
  font-weight:800;
  color:#fff;
  letter-spacing:-.02em;
  line-height:1.32;
}
.cta-band p{color:rgba(255,255,255,.72);margin-top:12px;font-size:15.5px;max-width:640px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
  margin-top:20px;
  font-size:13.5px;
  color:rgba(255,255,255,.6);
}
.cta-meta span{display:inline-flex;align-items:center;gap:7px;}
.cta-meta i{
  width:6px;height:6px;border-radius:50%;
  background:var(--c-mint);display:inline-block;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-ink);
  color:#fff;
  margin-top:var(--gap-section);
  padding-top:64px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.4fr;
  gap:44px;
  padding-bottom:48px;
}
.foot-brand .brand-text{color:#fff;font-size:20px;}
.foot-brand p{
  margin-top:16px;
  font-size:14.5px;
  line-height:1.8;
  color:rgba(255,255,255,.66);
  max-width:340px;
}
.foot-col h4{
  font-size:14px;
  font-weight:800;
  letter-spacing:.06em;
  color:#fff;
  margin-bottom:18px;
}
.foot-col ul li + li{margin-top:10px;}
.foot-col a{
  font-size:14.5px;
  color:rgba(255,255,255,.68);
  font-weight:500;
}
.foot-col a:hover{color:var(--c-mint);}
.foot-note{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.62);
}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 30px;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13.5px;
  color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--gap-section:84px;}
  .container{max-width:960px;}
  .band-text h1{font-size:40px;}
  .h2-title{font-size:28px;}
  .zig{gap:44px;}
  .zig-body h2{font-size:26px;}
  .intro-block{grid-template-columns:1fr;gap:32px;}
  .intro-facts{border-left:0;border-top:1px solid var(--c-line);padding-left:0;padding-top:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:991px){
  .page-band .band-img{aspect-ratio:16/9;}
  .band-text h1{font-size:34px;}
  .zig{grid-template-columns:1fr;gap:28px;padding:44px 0;}
  .zig.is-reverse .zig-media{order:1;}
  .zig.is-reverse .zig-body{order:2;}
  .data-grid{grid-template-columns:1fr 1fr;}
  .data-card.is-note{grid-column:1 / -1;}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .cta-band{grid-template-columns:1fr;padding:36px 28px;gap:24px;}
  .mega-panel{display:none;}
}
@media (max-width:767px){
  :root{--gap-section:60px;}
  body{font-size:16px;}
  .container{padding-left:16px;padding-right:16px;}
  .nav-shell{height:66px;gap:14px;}
  .brand-text{font-size:17px;}
  .page-band .band-img{aspect-ratio:4/3;}
  .band-text{padding:0 16px 24px;}
  .band-text h1{font-size:28px;}
  .crumb-bar{padding:14px 0 0;}
  .intro-block{padding:26px 0 32px;}
  .subnav-bar{top:66px;}
  .zig-body h2{font-size:23px;}
  .data-grid{grid-template-columns:1fr;}
  .data-card.is-offset{margin-top:0;}
  .data-card .num{font-size:38px;}
  .faq-a{padding:16px 18px 20px 18px;}
  .faq-q{padding:14px 18px;gap:12px;}
  .faq-txt{font-size:15.5px;}
  .cta-band{padding:30px 20px;}
  .cta-band h2{font-size:23px;}
  .cta-actions .btn-main,
  .cta-actions .btn-line{width:100%;justify-content:center;}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:34px;}
  .site-footer{padding-top:48px;}
  .foot-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:575px){
  :root{--gap-section:48px;}
  .section-sm{padding:48px 0;}
  .data-card{padding:22px 20px;}
  .faq-num{display:none;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --c-primary:#0FA3B1;
  --c-primary-700:#0B7A86;
  --c-primary-50:#E8F6F8;
  --c-mint:#7DE0C4;
  --c-accent:#FF5A1F;
  --c-ink:#0A2A33;
  --c-text:#16323B;
  --c-muted:#5C7A85;
  --c-bg:#F7FAFB;
  --c-surface:#FFFFFF;
  --c-line:#DCE7EC;
  --c-danger:#D64545;
  --c-success:#2E9E7A;
  --sh-1:0 1px 2px rgba(10,42,51,.06);
  --sh-2:0 14px 30px -14px rgba(10,42,51,.22);
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:6px;
  --r-input:10px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-primary:#0FA3B1;
  --bs-primary-rgb:15,163,177;
  --bs-body-color:#16323B;
  --bs-body-bg:#F7FAFB;
  --bs-border-color:#DCE7EC;
  --bs-link-color:#0B7A86;
  --bs-link-hover-color:#FF5A1F;
  --bs-border-radius:16px;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16.5px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--c-primary-700);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--c-accent)}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;color:var(--c-ink)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(15,163,177,.35);outline-offset:2px;border-radius:6px}

.container{max-width:1240px;padding-left:24px;padding-right:24px;margin:0 auto;width:100%}
@media (min-width:992px) and (max-width:1199.98px){.container{max-width:960px}}

/* ============ HEADER / NAV ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:var(--c-surface);
  border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.site-header.scrolled{border-bottom:1px solid var(--c-line);box-shadow:0 10px 26px -22px rgba(10,42,51,.35)}
.nav-shell{display:flex;align-items:center;gap:24px;height:74px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:10px;flex:0 0 36px;
  background:linear-gradient(150deg,var(--c-primary) 0%,var(--c-primary-700) 100%);
  display:inline-flex;align-items:center;justify-content:center;
}
.brand-mark svg{width:22px;height:22px}
.brand-text{font-size:19px;font-weight:800;letter-spacing:-.02em;color:var(--c-ink);white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px}
.mlink{
  position:relative;display:inline-block;padding:10px 12px;
  font-size:15.5px;font-weight:600;color:var(--c-text);border-radius:8px;
}
.mlink::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--c-primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left center;
  transition:transform .2s var(--ease);
}
.mlink:hover{color:var(--c-primary-700)}
.mlink:hover::after{transform:scaleX(1)}
.mlink.is-active{color:var(--c-primary-700)}
.mlink.is-active::after{transform:scaleX(1);background:var(--c-accent)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}

.mega-wrap{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;
  height:42px;padding:0 16px;
  background:var(--c-primary-50);border:1px solid var(--c-line);
  color:var(--c-primary-700);font-size:15px;font-weight:700;
  border-radius:var(--r-btn);
  transition:background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.mega-trigger:hover{background:#fff;border-color:var(--c-primary);color:var(--c-primary-700)}
.mega-trigger .chev{width:16px;height:16px;transition:transform .2s var(--ease)}
.mega-wrap.open .mega-trigger .chev,.mega-wrap:hover .mega-trigger .chev{transform:rotate(180deg)}
.mega-panel{
  position:absolute;top:calc(100% + 8px);right:0;width:720px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-2);
  padding:26px;display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
}
.mega-wrap:hover .mega-panel,.mega-wrap.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);border-color:var(--c-primary)}
.mega-title{font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--c-muted);text-transform:uppercase;margin-bottom:14px}
.mega-links{display:grid;grid-template-columns:1fr 1fr;gap:10px 18px}
.mega-links a{font-size:15px;font-weight:600;color:var(--c-text);padding:4px 0}
.mega-links a:hover{color:var(--c-primary-700)}
.mega-list li + li{margin-top:12px}
.mega-list a{display:block;font-size:15px;font-weight:700;color:var(--c-ink)}
.mega-list a span{display:block;font-size:13px;font-weight:500;color:var(--c-muted);margin-top:2px}
.mega-card{border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;background:var(--c-surface)}
.mega-card .thumb{aspect-ratio:16/10;background:var(--c-primary-50);overflow:hidden}
.mega-card .thumb img{width:100%;height:100%;object-fit:cover}
.mega-card .mega-card-body{padding:14px 16px}
.mega-card p{font-size:13.5px;color:var(--c-muted);margin-bottom:10px}
.nav-toggle{
  width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--c-line);
  background:var(--c-surface);color:var(--c-ink);font-size:18px;
  display:inline-flex;align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary-700)}

/* offcanvas */
.offcanvas{background:var(--c-surface);border-left:1px solid var(--c-line)}
.offcanvas-header{border-bottom:1px solid var(--c-line);padding:18px 20px}
.offcanvas-body{padding:18px 20px 32px}
.mnav-list li + li{border-top:1px solid var(--c-line)}
.mnav-list a{display:block;padding:15px 2px;font-size:16px;font-weight:700;color:var(--c-ink)}
.mnav-list a.is-active{color:var(--c-primary-700)}
.mgroup{margin-top:26px}
.mgroup h5{font-size:13px;letter-spacing:.08em;color:var(--c-muted);font-weight:800;margin-bottom:12px}
.mgroup .mega-links{grid-template-columns:1fr 1fr}

/* ============ BUTTONS ============ */
.btn-main,.btn-ghost,.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:52px;padding:0 24px;font-size:16.5px;font-weight:700;
  border-radius:var(--r-btn);border:1px solid transparent;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn-main{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-main:hover{background:var(--c-primary-700);color:#fff}
.btn-main:active{box-shadow:inset 0 0 0 1px rgba(255,255,255,.35)}
.btn-main .arw{transition:transform .2s var(--ease)}
.btn-main:hover .arw{transform:translateX(3px)}
.btn-ghost{background:transparent;color:var(--c-primary-700);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-50);color:var(--c-primary-700)}
.btn-line{background:transparent;color:var(--c-ink);border-color:var(--c-line)}
.btn-line:hover{border-color:var(--c-primary);color:var(--c-primary-700)}
.btn-sm{height:42px;font-size:15px;padding:0 18px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:700;color:var(--c-primary-700)}
.link-arrow i{transition:transform .2s var(--ease);font-size:13px}
.link-arrow:hover i{transform:translateX(3px)}

/* ============ PAGE HEAD (分类页2: 居中窄栏) ============ */
.page-head{
  background:var(--c-primary-50);
  border-bottom:1px solid var(--c-line);
  padding:64px 0 72px;
  position:relative;
  overflow:hidden;
}
.page-head::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(15,163,177,.07) 0 1px,transparent 1px 14px);
  pointer-events:none;
}
.page-head .ph-inner{position:relative;max-width:820px;margin:0 auto;text-align:center}
.crumb{display:flex;justify-content:center;align-items:center;gap:8px;font-size:14px;color:var(--c-muted);margin-bottom:22px;flex-wrap:wrap}
.crumb a{color:var(--c-muted);font-weight:600}
.crumb a:hover{color:var(--c-primary-700)}
.crumb .sep{color:var(--c-line);font-weight:700}
.crumb .cur{color:var(--c-ink);font-weight:700}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-badge);
  font-size:13.5px;font-weight:700;
  background:var(--c-surface);border:1px solid var(--c-line);color:var(--c-primary-700);
}
.pill-mint{background:rgba(125,224,196,.22);border-color:rgba(125,224,196,.5);color:#1D7A63}
.page-head h1{font-size:clamp(28px,4.2vw,50px);line-height:1.2;margin:22px 0 18px}
.ph-lead{font-size:17.5px;line-height:1.8;color:var(--c-muted);max-width:660px;margin:0 auto}
.ph-meta{display:flex;justify-content:center;gap:26px;flex-wrap:wrap;margin-top:30px;font-size:14px;color:var(--c-muted)}
.ph-meta span{display:inline-flex;align-items:center;gap:8px;font-weight:600}
.ph-meta i{color:var(--c-primary)}

/* ============ SECTION BASE ============ */
.sec{padding:96px 0}
.sec-tight{padding:76px 0}
.sec-alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.sec-head{max-width:720px;margin-bottom:48px}
.sec-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:800;letter-spacing:.1em;
  color:var(--c-primary-700);margin-bottom:14px;text-transform:uppercase;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--c-primary);border-radius:2px}
.sec-head h2{font-size:clamp(22px,3vw,33px);line-height:1.28;margin-bottom:14px}
.sec-head p{font-size:16.5px;color:var(--c-muted);line-height:1.8}

/* ============ 卡片矩阵 ============ */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.dev-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
  display:flex;flex-direction:column;
}
.dev-card:hover{transform:translateY(-3px);border-color:var(--c-primary);box-shadow:var(--sh-2)}
.dev-card.tilt{margin-top:0}
@media (min-width:992px){.dev-card.tilt{margin-top:30px}}
.dev-top{display:flex;align-items:center;gap:14px;margin-bottom:16px}
.dev-ico{
  width:48px;height:48px;flex:0 0 48px;border-radius:14px;
  background:var(--c-primary-50);border:1px solid var(--c-line);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--c-primary-700);font-size:20px;
}
.dev-card h3{font-size:20px}
.dev-card > p{font-size:15.5px;color:var(--c-muted);line-height:1.75;margin-bottom:18px}
.dev-list{margin-bottom:20px}
.dev-list li{
  display:flex;justify-content:space-between;gap:16px;
  padding:9px 0;border-bottom:1px dashed var(--c-line);font-size:14.5px;
}
.dev-list li:last-child{border-bottom:0}
.dev-list .k{color:var(--c-muted)}
.dev-list .v{color:var(--c-ink);font-weight:700;text-align:right}
.dev-card .link-arrow{margin-top:auto}

/* ============ 时间线 ============ */
.timeline{position:relative;max-width:860px;margin:0 auto;padding-left:36px}
.timeline::before{
  content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--c-primary),var(--c-line));
  border-radius:2px;
}
.tl-item{position:relative;padding-bottom:38px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;left:-36px;top:6px;width:20px;height:20px;border-radius:50%;
  background:var(--c-surface);border:2px solid var(--c-primary);
  box-shadow:0 0 0 4px var(--c-bg);
}
.tl-item.is-now .tl-dot{background:var(--c-accent);border-color:var(--c-accent)}
.tl-tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:800;letter-spacing:.06em;
  padding:4px 10px;border-radius:var(--r-badge);
  background:var(--c-primary-50);border:1px solid var(--c-line);color:var(--c-primary-700);
  margin-bottom:10px;
}
.tl-item.is-now .tl-tag{background:rgba(255,90,31,.1);border-color:rgba(255,90,31,.35);color:#C33F0E}
.tl-item h3{font-size:19px;margin-bottom:8px}
.tl-item p{font-size:15.5px;color:var(--c-muted);line-height:1.8;max-width:680px}
.tl-note{
  margin-top:14px;font-size:14.5px;color:var(--c-text);
  background:var(--c-bg);border-left:3px solid var(--c-primary);
  border-radius:0 10px 10px 0;padding:12px 16px;max-width:680px;
}

/* ============ 数据块 ============ */
.stat-row{display:grid;grid-template-columns:1.1fr 1fr 1fr 1.4fr;gap:2px;background:var(--c-line);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;margin-bottom:56px}
.stat-cell{background:var(--c-surface);padding:26px 24px}
.stat-num{font-size:clamp(32px,4vw,46px);font-weight:800;color:var(--c-primary);line-height:1.1;letter-spacing:-.03em}
.stat-num em{font-size:18px;font-style:normal;font-weight:700;color:var(--c-muted);margin-left:4px}
.stat-label{font-size:14.5px;color:var(--c-muted);margin-top:8px;font-weight:600}
.stat-text{background:var(--c-ink);color:#fff}
.stat-text h3{color:#fff;font-size:18px;margin-bottom:10px}
.stat-text p{color:rgba(255,255,255,.72);font-size:14.5px;line-height:1.8}

/* ============ 横向滚动卡带 ============ */
.rail{
  display:flex;gap:22px;overflow-x:auto;padding:6px 4px 22px;
  scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;
}
.rail::-webkit-scrollbar{height:8px}
.rail::-webkit-scrollbar-track{background:var(--c-bg);border-radius:8px}
.rail::-webkit-scrollbar-thumb{background:var(--c-line);border-radius:8px}
.rail::-webkit-scrollbar-thumb:hover{background:var(--c-primary)}
.rail-card{
  flex:0 0 320px;scroll-snap-align:start;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.rail-card:hover{transform:translateY(-3px);border-color:var(--c-primary);box-shadow:var(--sh-2)}
.rail-card .thumb{aspect-ratio:16/9;background:var(--c-primary-50);overflow:hidden}
.rail-card .thumb img{width:100%;height:100%;object-fit:cover}
.rail-body{padding:20px}
.rail-body h3{font-size:17.5px;margin-bottom:8px}
.rail-body p{font-size:14.5px;color:var(--c-muted);line-height:1.75}

/* ============ 资讯精简卡 ============ */
.news-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:26px}
.news-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.news-card:hover{transform:translateY(-3px);border-color:var(--c-primary);box-shadow:var(--sh-2)}
.news-card .thumb{aspect-ratio:16/9;background:var(--c-primary-50);overflow:hidden}
.news-card .thumb img{width:100%;height:100%;object-fit:cover}
.news-body{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1}
.badge-cat{
  display:inline-flex;align-items:center;align-self:flex-start;
  padding:4px 11px;border-radius:var(--r-badge);
  font-size:12.5px;font-weight:800;
  background:var(--c-primary-50);border:1px solid var(--c-line);color:var(--c-primary-700);
  margin-bottom:12px;
}
.news-body h3{font-size:19px;line-height:1.4;margin-bottom:10px}
.news-body > p{font-size:15px;color:var(--c-muted);line-height:1.75;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;display:flex;align-items:center;gap:14px;font-size:13.5px;color:var(--c-muted)}

/* ============ FAQ ============ */
.faq-shell{max-width:900px;margin:0 auto}
.accordion-item{
  background:var(--c-surface);border:1px solid var(--c-line)!important;
  border-radius:var(--r-card)!important;margin-bottom:14px;overflow:hidden;
}
.accordion-button{
  display:flex;align-items:center;gap:16px;
  min-height:62px;padding:16px 22px;
  background:var(--c-surface)!important;color:var(--c-ink)!important;
  font-size:16.5px;font-weight:700;box-shadow:none!important;
  border-radius:var(--r-card)!important;
}
.accordion-button:not(.collapsed){color:var(--c-primary-700)!important;background:var(--c-primary-50)!important}
.accordion-button .qnum{
  flex:0 0 30px;font-size:13px;font-weight:800;color:var(--c-primary-700);
  letter-spacing:.06em;
}
.accordion-button::after{
  content:"";background-image:none!important;
  width:30px;height:30px;flex:0 0 30px;margin-left:auto;
  border:1px solid var(--c-line);border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  transition:transform .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease);
  position:relative;
}
.accordion-button::before{
  content:"";position:absolute;right:34px;top:50%;
  width:12px;height:2px;background:var(--c-primary-700);transform:translateY(-50%);
  z-index:2;border-radius:2px;
}
.accordion-button:not(.collapsed)::before{background:#fff}
.accordion-button::after{
  box-shadow:inset 0 0 0 0 transparent;
}
.accordion-button .pluswrap{display:none}
.accordion-button > i.fa-plus,.accordion-button > i.fa-minus{display:none}
.accordion-body{padding:6px 22px 24px 68px;font-size:15.5px;line-height:1.85;color:var(--c-muted);background:var(--c-primary-50)}

/* 自绘 +/× 符号 */
.qsign{
  flex:0 0 30px;width:30px;height:30px;border:1px solid var(--c-line);border-radius:50%;
  position:relative;margin-left:auto;
  transition:transform .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease);
}
.qsign::before,.qsign::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-primary-700);border-radius:2px;
  transform:translate(-50%,-50%);
}
.qsign::before{width:12px;height:2px}
.qsign::after{width:2px;height:12px}
.accordion-button:not(.collapsed) .qsign{background:var(--c-primary);border-color:var(--c-primary);transform:rotate(45deg)}
.accordion-button:not(.collapsed) .qsign::before,.accordion-button:not(.collapsed) .qsign::after{background:#fff}

/* ============ CTA 深色带 ============ */
.cta-band{background:var(--c-ink);color:#fff;border-top:1px solid rgba(255,255,255,.08);padding:72px 0}
.cta-inner{display:grid;grid-template-columns:1.3fr 1fr;gap:44px;align-items:center}
.cta-band h2{color:#fff;font-size:clamp(22px,3vw,33px);line-height:1.3;margin-bottom:14px}
.cta-band p{color:rgba(255,255,255,.72);font-size:16px;line-height:1.8;max-width:560px}
.cta-actions{display:flex;flex-direction:column;gap:14px}
.cta-band .btn-main{background:var(--c-primary);height:56px;font-size:17px;width:100%}
.cta-band .btn-main:hover{background:var(--c-accent)}
.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.4);height:52px;width:100%}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.08);color:#fff;border-color:#fff}
.cta-hash{font-size:13.5px;color:rgba(255,255,255,.5);line-height:1.9;letter-spacing:.02em}

/* ============ FOOTER ============ */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.78);padding:74px 0 28px;border-top:1px solid rgba(255,255,255,.06)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px}
.foot-brand .brand-text{color:#fff;font-size:20px}
.foot-brand p{margin-top:16px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.66);max-width:340px}
.foot-col h4{color:#fff;font-size:15px;font-weight:800;margin-bottom:18px;letter-spacing:.02em}
.foot-col ul li + li{margin-top:11px}
.foot-col a{color:rgba(255,255,255,.72);font-size:14.5px}
.foot-col a:hover{color:var(--c-mint)}
.foot-note{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.66)}
.foot-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.55);
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.reveal.in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important;animation:none!important}
  .reveal{opacity:1;transform:none}
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .nav-shell{height:70px}
  .sec{padding:80px 0}
  .stat-row{grid-template-columns:1fr 1fr;gap:2px}
}
@media (max-width:991.98px){
  .page-head{padding:52px 0 58px}
  .sec{padding:68px 0}
  .sec-tight{padding:60px 0}
  .grid-2{grid-template-columns:1fr;gap:20px}
  .news-grid{grid-template-columns:1fr}
  .cta-inner{grid-template-columns:1fr;gap:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .stat-row{grid-template-columns:1fr 1fr}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .container{padding-left:18px;padding-right:18px}
  .sec{padding:56px 0}
  .sec-tight{padding:50px 0}
  .rail-card{flex:0 0 84%}
  .news-grid{grid-template-columns:1fr}
  .faq-shell{max-width:100%}
  .accordion-body{padding-left:22px}
  .timeline{padding-left:30px}
  .tl-dot{left:-30px;width:17px;height:17px}
  .stat-row{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;gap:8px}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px}
  .sec{padding:48px 0}
  .sec-tight{padding:44px 0}
  .dev-card,.rail-body,.news-body{padding:20px}
  .page-head{padding:42px 0 48px}
  .ph-lead{font-size:16px}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:56px 0}
  .rail-card{flex:0 0 88%}
}