/* roulang page: index */
:root{
  --p900:#0B2A4A;--p700:#12406E;--p600:#17558F;--p500:#1E6BB0;--p100:#DCEAF6;--p50:#F1F7FC;
  --a600:#D9660F;--a500:#F0791E;
  --ok:#12A594;--warn:#D9A21B;--err:#D2493F;
  --bg:#F5F8FB;--bg-alt:#EDF3FA;--ink:#0E2440;
  --t1:#10243A;--t2:#45586E;--t3:#8496A8;
  --line:#E3EAF2;--line-strong:#CFDBE8;
  --sh1:0 1px 2px rgba(16,42,74,.06);
  --sh2:0 6px 18px rgba(16,42,74,.09);
  --sh3:0 18px 44px rgba(16,42,74,.13);
  --r-xs:6px;--r-sm:10px;--r-md:14px;--r-lg:20px;--r-xl:28px;--r-pill:999px;
  --container:1200px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);font-size:16px;line-height:1.78;color:var(--t2);background:var(--bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--p500);text-decoration:none;transition:color .2s ease,background-color .2s ease}
a:hover{color:var(--p700)}
h1,h2,h3,h4,h5{color:var(--t1);margin:0;font-weight:700;letter-spacing:.2px}
p{margin:0 0 16px}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid rgba(30,107,176,.45);outline-offset:2px}
.container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media(min-width:1400px){.container-x{max-width:1280px}}
.section{padding:96px 0}
.sec-head{margin-bottom:44px}
.sec-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3}
.sec-lead{max-width:640px;margin-top:14px;font-size:16px;color:var(--t2)}
.sec-head.split{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap}
.sec-link{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.text-alt{background:var(--bg-alt)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--p600);background:rgba(30,107,176,.1);padding:5px 14px;border-radius:var(--r-pill);margin-bottom:18px}
.num{font-variant-numeric:tabular-nums}
/* ---------- buttons ---------- */
.btn-main,.btn-outline,.btn-down,.btn-nav,.btn-soft{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;border-radius:var(--r-sm);border:1px solid transparent;transition:all .2s ease;line-height:1;white-space:nowrap}
.btn-main{background:var(--p500);color:#fff;height:44px;padding:0 22px}
.btn-main:hover{background:#1a5f9e;color:#fff;transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-main:active{transform:translateY(0);box-shadow:none}
.btn-outline{background:#fff;color:var(--p600);border-color:var(--line-strong);height:44px;padding:0 22px}
.btn-outline:hover{border-color:var(--p500);color:var(--p700);background:var(--p50);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(0)}
.btn-soft{background:var(--p50);color:var(--p600);height:42px;padding:0 20px;border-radius:var(--r-pill)}
.btn-soft:hover{background:var(--p100);color:var(--p700)}
.btn-down{background:var(--a500);color:#fff;height:52px;padding:0 26px;border-radius:var(--r-pill)}
.btn-down:hover{background:var(--a600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-down:active{transform:translateY(0);box-shadow:none}
.btn-nav{background:var(--p500);color:#fff;height:40px;padding:0 18px;border-radius:var(--r-sm)}
.btn-nav:hover{background:#1a5f9e;color:#fff;box-shadow:var(--sh2)}
.btn-nav-ghost{background:#fff;color:var(--p600);border-color:var(--line-strong);height:40px;padding:0 18px;border-radius:var(--r-sm)}
.btn-nav-ghost:hover{border-color:var(--p500);background:var(--p50)}
.link-underline{color:var(--p600);border-bottom:1px dashed rgba(30,107,176,.4)}
.link-underline:hover{border-bottom-style:solid;border-bottom-color:var(--p600)}
/* ---------- topbar ---------- */
.topbar{background:var(--p900);color:rgba(255,255,255,.8);font-size:13px}
.topbar .container-x{display:flex;align-items:center;justify-content:space-between;height:34px;gap:20px}
.topbar a{color:rgba(255,255,255,.8);font-size:13px}
.topbar a:hover{color:#fff}
.topbar-links{display:flex;gap:20px}
.topbar-hint{display:flex;align-items:center;gap:8px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease}
.site-header.is-stuck{box-shadow:var(--sh1)}
.nav-inner{display:flex;align-items:center;gap:26px;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--t1);white-space:nowrap}
.brand:hover{color:var(--p600)}
.brand-icon{width:32px;height:32px;border-radius:9px;background:var(--p600);color:#fff;display:grid;place-items:center;font-size:17px;flex:0 0 32px}
.nav-menu{display:flex;align-items:center;gap:4px}
.nav-menu a{position:relative;display:block;padding:8px 16px;border-radius:var(--r-pill);font-size:15px;font-weight:500;color:var(--t2)}
.nav-menu a:hover{color:var(--p600);background:var(--p50)}
.nav-menu a.active{color:var(--t1);font-weight:700}
.nav-menu a.active::after{content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:-2px;width:20px;height:3px;border-radius:2px;background:var(--p500)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{position:relative;width:220px}
.nav-search input{width:100%;height:40px;border:1px solid var(--line);border-radius:var(--r-pill);padding:0 16px 0 38px;font-size:14px;color:var(--t1);background:var(--p50);transition:all .2s ease}
.nav-search input::placeholder{color:var(--t3)}
.nav-search input:focus{outline:none;border-color:var(--p500);background:#fff;box-shadow:0 0 0 3px rgba(30,107,176,.12)}
.nav-search i{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--t3);font-size:15px;pointer-events:none}
.nav-toggle{display:none;width:42px;height:42px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;color:var(--t1);font-size:20px;align-items:center;justify-content:center;margin-left:auto}
.nav-drawer{display:none}
/* ---------- hero ---------- */
.hero{background:linear-gradient(180deg,var(--p50) 0%,#fff 100%);padding:76px 0 68px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(28px,4.2vw,46px);line-height:1.22;font-weight:800;margin-bottom:18px}
.hero-sub{font-size:17px;color:var(--t2);max-width:520px;margin-bottom:28px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px}
.hero-metrics{display:flex;gap:32px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:22px}
.metric strong{display:block;font-size:17px;font-weight:700;color:var(--t1);font-variant-numeric:tabular-nums}
.metric span{font-size:13px;color:var(--t3)}
.hero-visual{position:relative}
.hero-visual img{border-radius:var(--r-lg);box-shadow:var(--sh3);width:100%;aspect-ratio:4/3;object-fit:cover;background:var(--bg-alt)}
.float-card{position:absolute;left:-16px;bottom:32px;background:#fff;border-radius:var(--r-md);box-shadow:var(--sh2);padding:12px 18px;font-size:13px;color:var(--t3);display:flex;align-items:center;gap:10px}
.float-card b{color:var(--t1);font-size:15px;font-variant-numeric:tabular-nums}
/* ---------- trust ---------- */
.trust{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust-list{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:22px 0;flex-wrap:wrap}
.trust-item{display:flex;align-items:center;gap:8px;color:var(--t3);font-size:14px;filter:grayscale(1);transition:filter .2s ease,color .2s ease}
.trust-item:hover{filter:grayscale(0);color:var(--p600)}
.trust-item i{font-size:18px}
/* ---------- value ---------- */
.value-row{display:grid;grid-template-columns:64px 1fr;gap:20px;align-items:start;margin-bottom:32px}
.value-num{font-size:64px;font-weight:800;line-height:.95;color:rgba(30,107,176,.15);font-variant-numeric:tabular-nums}
.value-card{display:grid;grid-template-columns:1fr 2fr;gap:30px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh1);padding:24px;transition:all .25s ease;align-items:center}
.value-card:hover{box-shadow:var(--sh2);transform:translateY(-4px);border-color:rgba(30,107,176,.3)}
.value-card.reverse .value-media{order:2}
.value-card img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-md);background:var(--bg-alt)}
.value-card h3{font-size:clamp(18px,1.8vw,22px);margin-bottom:12px}
.value-card p{margin-bottom:14px}
.check-list li{position:relative;padding-left:26px;margin-bottom:8px;font-size:15px;color:var(--t2)}
.check-list li::before{content:"\F26E";font-family:"bootstrap-icons";position:absolute;left:0;top:0;color:var(--p500);font-size:15px}
/* ---------- carousel ---------- */
.carousel-wrap{max-width:1080px;margin:0 auto;padding-bottom:52px}
.shot-slide img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh2);background:var(--bg-alt)}
.shot-cap{text-align:center;margin-top:16px;font-size:15px;color:var(--t2)}
.carousel-control-prev,.carousel-control-next{position:absolute;top:auto;bottom:110px;width:48px;height:48px;background:#fff;border-radius:50%;box-shadow:var(--sh2);opacity:1;color:var(--p600);display:grid;place-items:center;border:1px solid var(--line)}
.carousel-control-prev{left:-6px}
.carousel-control-next{right:-6px}
.carousel-control-prev:hover,.carousel-control-next:hover{background:var(--p50);color:var(--p700)}
.carousel-control-prev i,.carousel-control-next i{font-size:20px}
.carousel-indicators{position:absolute;bottom:0;margin:0;gap:6px}
.carousel-indicators [data-bs-target]{width:24px;height:4px;border-radius:2px;background:var(--line-strong);border:0;opacity:1;margin:0}
.carousel-indicators .active{background:var(--p500);width:36px}
/* ---------- specs ---------- */
.spec-wrap{background:var(--bg-alt);border-radius:var(--r-xl);padding:40px}
.spec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.spec-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:20px;box-shadow:var(--sh1);transition:all .25s ease}
.spec-card:hover{box-shadow:var(--sh2);transform:translateY(-4px)}
.spec-card .name{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--t3);margin-bottom:8px}
.spec-card .name i{color:var(--p500);font-size:16px}
.spec-card .val{font-size:16px;font-weight:700;color:var(--t1);font-variant-numeric:tabular-nums}
/* ---------- reviews ---------- */
.review-summary{display:flex;align-items:center;gap:28px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh1);padding:22px 28px;margin-bottom:32px;flex-wrap:wrap}
.score{font-size:44px;font-weight:800;color:var(--t1);line-height:1;font-variant-numeric:tabular-nums}
.stars{color:var(--a500);font-size:15px;letter-spacing:2px}
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.review-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh1);padding:24px;transition:all .25s ease;display:flex;flex-direction:column;gap:14px}
.review-card:hover{box-shadow:var(--sh2);transform:translateY(-4px);border-color:rgba(30,107,176,.3)}
.review-top{display:flex;align-items:center;gap:12px}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--p100);color:var(--p600);display:grid;place-items:center;font-weight:700;font-size:15px;flex:0 0 40px}
.review-name{font-size:15px;font-weight:600;color:var(--t1)}
.review-text{font-size:15px;color:var(--t2);margin:0}
.review-foot{margin-top:auto;font-size:13px;color:var(--t3);border-top:1px solid var(--line);padding-top:12px;display:flex;justify-content:space-between;gap:10px}
/* ---------- download band ---------- */
.download-band{background:var(--ink);border-radius:var(--r-xl);padding:56px;color:rgba(255,255,255,.78)}
.download-band h2{color:#fff;font-size:clamp(22px,2.6vw,32px);margin-bottom:12px}
.download-band .band-lead{max-width:620px;font-size:16px}
.band-body{display:grid;grid-template-columns:1fr 200px;gap:40px;align-items:center;margin-top:36px}
.down-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.down-btn{background:var(--a500);color:#fff;border-radius:var(--r-md);padding:14px 18px;display:flex;align-items:center;gap:12px;text-align:left;transition:all .2s ease}
.down-btn:hover{background:var(--a600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh2)}
.down-btn i{font-size:22px;flex:0 0 auto}
.down-btn strong{display:block;font-size:15px;font-weight:700;line-height:1.35}
.down-btn span{font-size:12px;opacity:.88;font-variant-numeric:tabular-nums}
.qr-box{width:160px;height:160px;background:#fff;border-radius:var(--r-md);display:grid;place-items:center;margin:0 auto;color:var(--p900);font-size:52px}
.qr-cap{font-size:13px;color:rgba(255,255,255,.6);text-align:center;margin-top:12px}
/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh1);transition:all .25s ease;color:inherit;height:100%}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:rgba(30,107,176,.3);color:inherit}
.news-cover{background:var(--bg-alt)}
.news-cover img{width:100%;aspect-ratio:16/10;object-fit:cover}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1}
.badge-cat{align-self:flex-start;font-size:13px;font-weight:600;padding:4px 12px;border-radius:var(--r-pill);background:rgba(30,107,176,.1);color:var(--p600)}
.news-body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s ease}
.news-card:hover h3{color:var(--p600)}
.news-body p{font-size:14px;color:var(--t2);margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--t3);display:flex;align-items:center;gap:8px}
.empty-state{min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;background:#fff;border:1px dashed var(--line-strong);border-radius:var(--r-lg);padding:36px;gap:8px}
.empty-state i{font-size:48px;color:var(--t3)}
.empty-state b{font-size:16px;color:var(--t1);font-weight:700}
.empty-state span{font-size:14px;color:var(--t3);margin-bottom:10px}
/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px}
.acc-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh1);overflow:hidden}
.acc-btn{width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;background:transparent;border:0;padding:18px 22px;font-size:17px;font-weight:600;color:var(--t1);text-align:left;transition:color .2s ease}
.acc-btn::after{content:"+";font-size:22px;font-weight:400;color:var(--p500);line-height:1;transition:transform .25s ease}
.acc-btn:not(.collapsed)::after{transform:rotate(45deg)}
.acc-btn:hover{color:var(--p600)}
.acc-btn:focus{box-shadow:none}
.acc-body{background:var(--p50);padding:0 22px 20px;font-size:15px;color:var(--t2)}
.acc-body p{margin:0}
/* ---------- cta ---------- */
.cta-strip{max-width:960px;margin:0 auto;background:var(--p50);border:1px solid var(--line);border-radius:var(--r-xl);padding:48px 32px;text-align:center}
.cta-strip h2{font-size:clamp(22px,2.6vw,32px);margin-bottom:14px}
.cta-strip p{max-width:560px;margin:0 auto 26px}
.cta-actions{display:flex;justify-content:center;align-items:center;gap:18px;flex-wrap:wrap}
/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.78);margin-top:96px;padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:48px}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:18px}
.site-footer p{font-size:14px;color:rgba(255,255,255,.7)}
.site-footer a{color:rgba(255,255,255,.78);font-size:14px}
.site-footer a:hover{color:var(--a500)}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;margin-bottom:16px}
.footer-brand .brand-icon{background:var(--p500)}
.footer-list li{margin-bottom:10px}
.footer-qr{display:flex;align-items:center;gap:14px;margin-top:14px}
.footer-qr .box{width:76px;height:76px;border-radius:var(--r-sm);background:rgba(255,255,255,.1);display:grid;place-items:center;font-size:28px;color:#fff}
.footer-qr small{font-size:12px;color:rgba(255,255,255,.6);display:block;line-height:1.6}
.footer-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,.6)}
.footer-bottom a{font-size:13px;color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:var(--a500)}
/* ---------- responsive ---------- */
@media(max-width:1199.98px){
  .nav-search{width:180px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:991.98px){
  .section{padding:72px 0}
  .nav-menu,.nav-search,.nav-actions{display:none}
  .nav-toggle{display:flex}
  .nav-drawer{display:block;border-top:1px solid var(--line);padding:18px 0 24px}
  .nav-drawer .drawer-search{position:relative;margin-bottom:14px}
  .nav-drawer .drawer-search input{width:100%;height:42px;border:1px solid var(--line);border-radius:var(--r-sm);padding:0 16px 0 38px;font-size:14px;background:var(--p50)}
  .nav-drawer .drawer-search i{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--t3)}
  .drawer-menu{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
  .drawer-menu a{padding:12px 14px;border-radius:var(--r-sm);font-size:15px;font-weight:500;color:var(--t2)}
  .drawer-menu a.active,.drawer-menu a:hover{background:var(--p50);color:var(--p600)}
  .drawer-actions{display:flex;flex-direction:column;gap:10px}
  .drawer-actions .btn-main,.drawer-actions .btn-outline{width:100%}
  .hero{padding:56px 0 52px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-visual{order:-1}
  .float-card{left:12px;bottom:18px}
  .value-card{grid-template-columns:1fr;gap:20px}
  .value-card.reverse .value-media{order:0}
  .value-row{grid-template-columns:44px 1fr;gap:14px}
  .value-num{font-size:46px}
  .spec-grid{grid-template-columns:repeat(2,1fr)}
  .review-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .band-body{grid-template-columns:1fr;gap:28px}
  .download-band{padding:40px 28px}
  .carousel-control-prev,.carousel-control-next{display:none}
  .carousel-wrap{padding-bottom:40px}
}
@media(max-width:767.98px){
  .topbar .topbar-links{display:none}
  .hero-metrics{gap:20px}
  .metric{min-width:44%}
  .review-grid,.news-grid{grid-template-columns:1fr}
  .spec-grid{grid-template-columns:1fr}
  .spec-wrap{padding:24px}
  .down-grid{grid-template-columns:1fr}
  .cta-strip{padding:36px 20px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
}
@media(max-width:575.98px){
  .section{padding:56px 0}
  body{font-size:15px}
  .hero h1{font-size:28px}
  .brand{font-size:16px}
  .hero-actions .btn-down,.hero-actions .btn-outline{width:100%}
  .cta-actions .btn-main,.cta-actions .btn-outline{width:100%}
  .download-band{padding:32px 20px}
  .value-row{grid-template-columns:1fr}
  .value-num{font-size:38px}
}

/* roulang page: article */
:root{
  --p900:#0B2A4A; --p700:#12406E; --p600:#17558F; --p500:#1E6BB0; --p100:#DCEAF6; --p50:#F1F7FC;
  --a600:#D9660F; --a500:#F0791E;
  --ok:#12A594; --warn:#D9A21B; --err:#D2493F;
  --bg:#F5F8FB; --bg-alt:#EDF3FA; --ink:#0E2440;
  --t1:#10243A; --t2:#45586E; --t3:#8496A8;
  --line:#E3EAF2; --line-strong:#CFDBE8;
  --sh1:0 1px 2px rgba(16,42,74,.06);
  --sh2:0 6px 18px rgba(16,42,74,.09);
  --sh3:0 18px 44px rgba(16,42,74,.13);
  --r-xs:6px; --r-sm:10px; --r-md:14px; --r-lg:20px; --r-xl:28px; --r-pill:999px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.78;color:var(--t2);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{color:var(--t1);margin:0;font-weight:700;letter-spacing:.2px;}
p{margin:0;}
a{color:var(--p500);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--p600);}
img{max-width:100%;display:block;border-style:none;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:0;background:none;}
time,.num{font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid rgba(30,107,176,.4);outline-offset:2px;border-radius:4px;}
.container-x{max-width:var(--container);margin:0 auto;padding:0 24px;}
@media (min-width:1400px){.container-x{max-width:1280px;}}

/* ============ 顶部提示条 ============ */
.topbar{background:var(--p900);color:rgba(255,255,255,.8);font-size:13px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:34px;gap:16px;}
.topbar-inner .tips{opacity:.85;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-links{display:flex;gap:18px;flex:0 0 auto;}
.topbar-links a{color:rgba(255,255,255,.8);}
.topbar-links a:hover{color:#fff;}
@media (max-width:991px){.topbar{display:none;}}

/* ============ 主导航 ============ */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease;}
.site-header.is-stuck{box-shadow:var(--sh1);}
.navbar-x{height:68px;display:flex;align-items:center;gap:20px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-icon{width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,var(--p500),var(--p700));color:#fff;display:grid;place-items:center;font-size:17px;box-shadow:var(--sh1);}
.brand-text{font-size:18px;font-weight:800;color:var(--t1);letter-spacing:.3px;}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-menu a{position:relative;display:block;padding:8px 14px;border-radius:var(--r-pill);font-size:15px;font-weight:500;color:var(--t2);}
.nav-menu a:hover{color:var(--p500);background:var(--p50);transform:translateX(0);}
.nav-menu a.active{color:var(--p600);font-weight:700;}
.nav-menu a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:-16px;height:3px;border-radius:3px;background:var(--p500);}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{position:relative;width:220px;}
.search-box input{width:100%;height:42px;border-radius:var(--r-pill);border:1px solid var(--line);background:var(--bg);padding:0 16px 0 40px;font-size:14px;color:var(--t1);transition:border-color .2s,box-shadow .2s,background-color .2s;}
.search-box input::placeholder{color:var(--t3);}
.search-box input:focus{outline:none;background:#fff;border-color:var(--p500);box-shadow:0 0 0 3px rgba(30,107,176,.12);}
.search-box .bi{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--t3);font-size:15px;}
.nav-toggle{display:none;width:42px;height:42px;border-radius:var(--r-sm);border:1px solid var(--line);color:var(--t1);place-items:center;font-size:20px;background:#fff;}
.nav-toggle:hover{border-color:var(--line-strong);background:var(--bg);}
.nav-mask{display:none;}

/* 按钮体系 */
.btn-x{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-sm);font-size:15px;font-weight:600;border:1px solid transparent;transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;white-space:nowrap;}
.btn-x:hover{transform:translateY(-1px);box-shadow:var(--sh2);}
.btn-x:active{transform:translateY(0);box-shadow:none;}
.btn-primary-x{background:var(--p500);color:#fff;}
.btn-primary-x:hover{background:#1a5f9e;color:#fff;}
.btn-ghost-x{background:#fff;color:var(--t1);border-color:var(--line-strong);}
.btn-ghost-x:hover{border-color:var(--p500);color:var(--p500);}
.btn-outline-x{background:#fff;color:var(--p500);border-color:rgba(30,107,176,.45);}
.btn-outline-x:hover{background:var(--p50);color:var(--p600);border-color:var(--p500);}
.btn-download{background:var(--a500);color:#fff;border-radius:var(--r-pill);height:52px;padding:0 26px;font-weight:700;box-shadow:var(--sh2);}
.btn-download:hover{background:#dd6c14;color:#fff;box-shadow:var(--sh3);}
.btn-download .bi{font-size:18px;}

/* ============ 面包屑 ============ */
.crumb-bar{padding:22px 0 0;}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--t3);}
.crumb a{color:var(--t3);}
.crumb a:hover{color:var(--p500);}
.crumb .sep{color:var(--line-strong);}
.crumb .cur{color:var(--p500);font-weight:600;max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ============ 文章布局 ============ */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:44px;padding-top:26px;padding-bottom:56px;align-items:start;}
.post{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh1);padding:36px 40px 32px;}
.post-head{max-width:820px;}
.badge-soft{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);font-size:13px;font-weight:600;background:rgba(30,107,176,.1);color:var(--p600);}
.post-head h1{font-size:clamp(22px,2.9vw,34px);line-height:1.32;margin:14px 0 16px;font-weight:800;}
.post-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px;font-size:14px;color:var(--t3);}
.post-meta .bi{font-size:14px;margin-right:4px;}
.post-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line-strong);}
.post-rule{height:1px;background:var(--line);margin:22px 0 0;}

.post-cover{margin:26px 0 0;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh1);}
.post-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--bg-alt);}

/* 正文排版 */
.article-body{max-width:760px;font-size:16px;line-height:1.9;color:var(--t2);margin-top:28px;}
.article-body>*:first-child{margin-top:0;}
.article-body p{margin:0 0 20px;}
.article-body h2{position:relative;font-size:clamp(20px,2.2vw,26px);line-height:1.4;font-weight:700;color:var(--t1);padding-left:14px;margin:40px 0 16px;}
.article-body h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--p500);}
.article-body h3{font-size:18px;font-weight:600;color:var(--t1);margin:28px 0 12px;}
.article-body h4{font-size:16px;font-weight:600;color:var(--t1);margin:22px 0 10px;}
.article-body ul{padding-left:2px;margin:0 0 20px;}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:8px;line-height:1.9;}
.article-body ul li::before{content:"";position:absolute;left:2px;top:12px;width:7px;height:7px;border-radius:50%;background:var(--p500);}
.article-body ol{padding-left:24px;list-style:decimal;margin:0 0 20px;}
.article-body ol li{margin-bottom:8px;line-height:1.9;}
.article-body blockquote{margin:24px 0;padding:16px 22px;border-left:4px solid var(--p500);background:var(--p50);border-radius:0 var(--r-md) var(--r-md) 0;font-style:italic;font-size:18px;color:var(--t1);}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:16px;box-shadow:var(--sh1);margin:24px auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--t3);text-align:center;margin-top:10px;}
.article-body pre{background:#F2F5F9;border:1px solid var(--line);border-radius:var(--r-md);padding:16px 18px;overflow-x:auto;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;font-size:14px;line-height:1.7;color:var(--t1);margin:0 0 22px;}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;background:#F2F5F9;padding:2px 6px;border-radius:var(--r-xs);font-size:14px;color:var(--p700);}
.article-body pre code{background:none;padding:0;color:inherit;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;box-shadow:var(--sh1);border-radius:var(--r-md);overflow:hidden;}
.article-body th{background:var(--p50);color:var(--t1);font-weight:600;text-align:left;}
.article-body th,.article-body td{padding:12px 14px;border:0;border-bottom:1px solid var(--line);}
.article-body tbody tr:nth-child(even){background:#FAFCFE;}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body a{color:var(--p500);border-bottom:1px dashed rgba(30,107,176,.3);}
.article-body a:hover{color:var(--p600);border-bottom-style:solid;border-bottom-color:var(--p600);}
.article-body strong{color:var(--t1);}

/* 空态 */
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:60px 20px;margin:12px 0 4px;}
.empty-state .bi{font-size:48px;color:var(--t3);}
.empty-state h3{font-size:17px;font-weight:600;color:var(--t1);margin:16px 0 6px;}
.empty-state p{font-size:14px;color:var(--t3);margin:0 0 20px;}

/* 标签与分享 */
.post-tags{display:flex;flex-wrap:wrap;gap:10px;margin:34px 0 0;padding-top:24px;border-top:1px solid var(--line);}
.tag{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--r-pill);font-size:13px;background:var(--bg-alt);color:var(--t2);border:1px solid var(--line);transition:all .2s ease;}
.tag:hover{background:var(--p50);color:var(--p600);border-color:rgba(30,107,176,.35);}
.post-share{display:flex;align-items:center;gap:14px;margin-top:18px;flex-wrap:wrap;}
.post-share span{font-size:14px;color:var(--t3);}
.share-btn{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--t2);padding:6px 12px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;}
.share-btn:hover{color:var(--p500);border-color:rgba(30,107,176,.4);background:var(--p50);}

/* 相关阅读 */
.related{margin-top:28px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh1);padding:28px 30px;}
.related h2{font-size:20px;margin-bottom:18px;}
.related-list{display:grid;gap:14px;}
.related-item{display:flex;gap:16px;align-items:center;padding:12px;border-radius:var(--r-md);border:1px solid transparent;transition:all .2s ease;}
.related-item:hover{background:var(--p50);border-color:rgba(30,107,176,.2);transform:translateY(-2px);box-shadow:var(--sh1);}
.related-item img{width:96px;height:64px;object-fit:cover;border-radius:var(--r-sm);background:var(--bg-alt);flex:0 0 auto;}
.related-item .rt{font-size:15px;font-weight:600;color:var(--t1);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.related-item:hover .rt{color:var(--p500);}
.related-item .rm{font-size:13px;color:var(--t3);margin-top:6px;display:block;}
.back-row{margin-top:22px;}

/* 侧栏 */
.article-side{position:sticky;top:88px;display:grid;gap:20px;}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh1);padding:22px;}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3 .bi{color:var(--p500);}
.side-list li+li{margin-top:12px;}
.side-list a{display:block;font-size:14px;color:var(--t2);line-height:1.6;}
.side-list a:hover{color:var(--p500);}
.side-list .idx{display:inline-block;width:20px;height:20px;line-height:20px;text-align:center;border-radius:var(--r-xs);background:var(--p50);color:var(--p600);font-size:12px;font-weight:700;margin-right:8px;}
.dl-card{background:var(--ink);border:0;color:rgba(255,255,255,.78);}
.dl-card h3{color:#fff;}
.dl-card p{font-size:14px;line-height:1.7;margin-bottom:16px;}
.dl-card .btn-download{width:100%;}
.dl-card .meta-line{display:flex;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.6);margin-top:14px;}

/* CTA 条 */
.cta-band{background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-xl);padding:44px 32px;text-align:center;max-width:960px;margin:0 auto 64px;}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:12px;}
.cta-band p{max-width:640px;margin:0 auto 24px;color:var(--t2);}
.cta-actions{display:flex;justify-content:center;align-items:center;gap:18px;flex-wrap:wrap;}
.cta-link{font-size:15px;font-weight:600;color:var(--p500);}
.cta-link:hover{color:var(--p600);}

/* 页脚 */
.site-footer{background:var(--ink);color:rgba(255,255,255,.8);padding:56px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;margin-bottom:14px;}
.footer-brand .brand-icon{background:rgba(255,255,255,.12);color:#fff;box-shadow:none;}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.7);}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;}
.footer-list li{margin-bottom:10px;font-size:14px;color:rgba(255,255,255,.7);}
.footer-list a{color:rgba(255,255,255,.7);}
.footer-list a:hover{color:var(--a500);}
.footer-list .bi{margin-right:6px;color:rgba(255,255,255,.5);}
.footer-qr{display:flex;align-items:center;gap:12px;margin-top:16px;}
.footer-qr .box{width:78px;height:78px;border-radius:var(--r-md);background:#fff;color:var(--p700);display:grid;place-items:center;font-size:32px;}
.footer-qr small{font-size:12px;line-height:1.6;color:rgba(255,255,255,.6);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;display:flex;align-items:center;justify-content:space-between;gap:14px;font-size:13px;color:rgba(255,255,255,.6);flex-wrap:wrap;}
.footer-bottom a{color:rgba(255,255,255,.7);}
.footer-bottom a:hover{color:var(--a500);}

/* 响应式 */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:28px;}
  .article-side{display:none;}
  .post{padding:30px 28px;}
}
@media (max-width:991px){
  .nav-toggle{display:grid;}
  .nav-menu{position:fixed;top:0;right:0;width:min(84vw,340px);height:100vh;background:#fff;flex-direction:column;align-items:stretch;gap:2px;padding:84px 20px 28px;margin:0;box-shadow:var(--sh3);transform:translateX(103%);transition:transform .3s ease;z-index:1050;overflow-y:auto;}
  .nav-menu a{padding:12px 14px;border-radius:var(--r-sm);font-size:15px;}
  .nav-menu a.active::after{display:none;}
  .nav-menu a.active{background:var(--p50);}
  body.nav-open .nav-menu{transform:none;}
  body.nav-open{overflow:hidden;}
  .nav-mask{display:block;position:fixed;inset:0;background:rgba(14,36,64,.42);opacity:0;visibility:hidden;transition:opacity .25s ease;z-index:1040;}
  body.nav-open .nav-mask{opacity:1;visibility:visible;}
  .search-box,.nav-actions .btn-outline-x{display:none;}
  .nav-drawer-foot{display:block;margin-top:18px;}
  .nav-drawer-foot .btn-x{width:100%;margin-bottom:12px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (min-width:992px){.nav-drawer-foot{display:none;}}
@media (max-width:767px){
  .container-x{padding:0 16px;}
  .post{padding:24px 18px;border-radius:var(--r-md);}
  .related{padding:22px 18px;}
  .cta-band{padding:34px 20px;border-radius:var(--r-lg);margin-bottom:48px;}
  .article-body h2{margin-top:32px;}
  .cta-actions .btn-x{width:100%;}
}
@media (max-width:575px){
  .brand-text{font-size:16px;}
  .post-head h1{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;}
  .related-item img{width:80px;height:56px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --p900:#0B2A4A; --p700:#12406E; --p600:#17558F; --p500:#1E6BB0; --p100:#DCEAF6; --p50:#F1F7FC;
  --a600:#D9660F; --a500:#F0791E;
  --ok:#12A594; --warn:#D9A21B; --err:#D2493F;
  --bg:#F5F8FB; --bg-alt:#EDF3FA; --ink:#0E2440;
  --t1:#10243A; --t2:#45586E; --t3:#8496A8;
  --line:#E3EAF2; --line-strong:#CFDBE8;
  --sh1:0 1px 2px rgba(16,42,74,.06);
  --sh2:0 6px 18px rgba(16,42,74,.09);
  --sh3:0 18px 44px rgba(16,42,74,.13);
  --r-xs:6px; --r-sm:10px; --r-md:14px; --r-lg:20px; --r-xl:28px; --r-pill:999px;
  --container:1200px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han 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;font-family:var(--font);font-size:16px;line-height:1.78;color:var(--t2);
  background:var(--bg);-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0;color:var(--t1);font-weight:700;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--p500);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--p700)}
img{max-width:100%;display:block}
button,input{font-family:inherit}
:focus-visible{outline:2px solid rgba(30,107,176,.45);outline-offset:2px}
.num{font-variant-numeric:tabular-nums}

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

/* ---------- 顶部条 ---------- */
.topbar{background:var(--p900);color:rgba(255,255,255,.8);font-size:13px;height:34px;display:none}
.topbar .container-x{height:34px;display:flex;align-items:center;justify-content:space-between}
.topbar-left{display:flex;align-items:center;gap:8px}
.topbar-left i{color:var(--a500)}
.topbar-links{display:flex;gap:20px}
.topbar-links a{color:rgba(255,255,255,.8)}
.topbar-links a:hover{color:#fff}
@media (min-width:992px){.topbar{display:block}}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease}
.site-header.is-stuck{box-shadow:var(--sh1)}
.header-inner{height:68px;display:flex;align-items:center;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--t1)}
.brand:hover{color:var(--p600)}
.brand-icon{
  width:32px;height:32px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--p600),var(--p500));color:#fff;font-size:17px;box-shadow:var(--sh1);
}
.brand-text{font-size:18px;font-weight:800;letter-spacing:.2px}
.nav-menu{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-menu a{
  position:relative;padding:9px 14px;border-radius:var(--r-pill);font-size:15px;color:var(--t2);font-weight:500;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.nav-menu a:hover{color:var(--p600);background:var(--p50);transform:translateY(-1px)}
.nav-menu a.active{color:var(--p700);font-weight:700;background:var(--p50)}
.nav-menu a.active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:1px;width:22px;height:3px;
  border-radius:3px;background:var(--p500);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{position:relative;display:none}
.search-box i{position:absolute;left:13px;top:50%;transform:translateY(-50%);color:var(--t3);font-size:14px}
.search-box input{
  width:220px;height:42px;padding:0 16px 0 36px;border:1px solid var(--line);border-radius:var(--r-pill);
  background:#fff;font-size:14px;color:var(--t1);transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box input::placeholder{color:var(--t3)}
.search-box input:focus{outline:none;border-color:var(--p500);box-shadow:0 0 0 3px rgba(30,107,176,.12)}
.btn-ghost-sm{
  display:none;align-items:center;gap:6px;height:42px;padding:0 18px;border-radius:var(--r-sm);
  border:1px solid var(--line-strong);background:#fff;color:var(--t1);font-size:14px;font-weight:600;
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.btn-ghost-sm:hover{border-color:var(--p500);color:var(--p600);transform:translateY(-1px)}
.btn-download-sm{
  display:none;align-items:center;gap:7px;height:42px;padding:0 20px;border-radius:var(--r-sm);
  background:var(--a500);color:#fff;font-size:14px;font-weight:700;border:1px solid transparent;box-shadow:var(--sh1);
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-download-sm:hover{background:var(--a600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-download-sm:active{transform:translateY(0);box-shadow:none}
.navbar-toggler{
  width:42px;height:42px;border:1px solid var(--line-strong);border-radius:var(--r-sm);background:#fff;color:var(--t1);
  display:inline-flex;align-items:center;justify-content:center;font-size:19px;
}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(30,107,176,.12);outline:none}
.mobile-drawer{border-top:1px solid var(--line);background:#fff;padding:16px 0 20px}
.mobile-drawer .search-box{display:block;margin-bottom:14px}
.mobile-drawer .search-box input{width:100%}
.mobile-nav-list{display:flex;flex-direction:column;gap:4px;margin-bottom:14px}
.mobile-nav-list a{padding:11px 12px;border-radius:var(--r-sm);font-size:15px;color:var(--t2);font-weight:500}
.mobile-nav-list a.active{background:var(--p50);color:var(--p700);font-weight:700}
.mobile-drawer .drawer-btns{display:flex;flex-direction:column;gap:10px}
@media (min-width:992px){
  .search-box{display:block}
  .btn-ghost-sm,.btn-download-sm{display:inline-flex}
  .navbar-toggler{display:none}
}

/* ---------- 通用按钮 ---------- */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;
  border-radius:var(--r-sm);background:var(--p500);color:#fff;font-size:15px;font-weight:600;border:1px solid transparent;
  box-shadow:var(--sh1);transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-main:hover{background:var(--p600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-main:active{transform:translateY(0);box-shadow:none}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;height:52px;padding:0 26px;
  border-radius:var(--r-pill);background:var(--a500);color:#fff;font-size:16px;font-weight:700;border:1px solid transparent;
  box-shadow:var(--sh2);transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-accent:hover{background:var(--a600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh3)}
.btn-accent:active{transform:translateY(0);box-shadow:none}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;
  border-radius:var(--r-sm);background:#fff;border:1px solid var(--p500);color:var(--p600);font-size:15px;font-weight:600;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-line:hover{background:var(--p50);color:var(--p700);transform:translateY(-1px);box-shadow:var(--sh1)}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--p500)}
.text-link:hover{color:var(--p700);gap:10px}

/* ---------- 分类页页头 ---------- */
.cat-head{background:var(--bg-alt);border-bottom:1px solid var(--line);padding:34px 0 42px}
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--t3);margin-bottom:20px;flex-wrap:wrap}
.crumb a{color:var(--t3)}
.crumb a:hover{color:var(--p500)}
.crumb .sep{color:var(--line-strong)}
.crumb .current{color:var(--p500);font-weight:600}
.cat-head-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.cat-badge{
  display:inline-flex;align-items:center;gap:7px;padding:5px 13px;border-radius:var(--r-pill);
  background:rgba(30,107,176,.12);color:var(--p600);font-size:13px;font-weight:600;margin-bottom:16px;
}
.cat-head h1{font-size:clamp(26px,3.6vw,40px);font-weight:800;line-height:1.24;margin-bottom:14px}
.cat-head .lede{font-size:16px;color:var(--t2);max-width:560px}
.cat-head-figure{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh2);background:#fff}
.cat-head-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
@media (max-width:991px){
  .cat-head-grid{grid-template-columns:1fr;gap:26px}
  .cat-head{padding:24px 0 30px}
}

/* ---------- 版面骨架 ---------- */
.page-body{padding:56px 0 0}
.layout-8-4{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:40px;align-items:start}
@media (max-width:1199px){.layout-8-4{grid-template-columns:1fr;gap:32px}}

/* ---------- 图文块 ---------- */
.content-block{padding-bottom:40px;margin-bottom:40px;border-bottom:1px solid var(--line)}
.content-block:last-of-type{border-bottom:none}
.content-block h2{
  font-size:clamp(21px,2.3vw,28px);font-weight:700;padding-left:14px;position:relative;margin-bottom:18px;
}
.content-block h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--p500);
}
.content-block p+p{margin-top:16px}
.block-figure{margin:24px 0;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh1);background:var(--bg-alt)}
.block-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.block-figure figcaption{font-size:13px;color:var(--t3);padding:10px 14px;background:#fff;text-align:center}
.check-list{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.check-list li{display:flex;gap:11px;font-size:15px;color:var(--t2)}
.check-list li i{color:var(--p500);font-size:17px;line-height:1.6;flex:0 0 auto}
.check-list li strong{color:var(--t1);font-weight:600}

/* ---------- 侧栏 ---------- */
.side-sticky{position:sticky;top:92px;display:flex;flex-direction:column;gap:20px}
@media (max-width:1199px){.side-sticky{position:static}}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh1);padding:22px}
.side-card h3{font-size:16px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3 i{color:var(--p500)}
.anchor-nav{display:flex;flex-direction:column;gap:2px}
.anchor-nav a{
  display:flex;align-items:center;gap:9px;padding:10px 12px;border-radius:var(--r-sm);font-size:14.5px;color:var(--t2);
  transition:background .2s ease,color .2s ease,padding-left .2s ease;
}
.anchor-nav a i{color:var(--t3);font-size:15px}
.anchor-nav a:hover{background:var(--p50);color:var(--p600);padding-left:16px}
.anchor-nav a:hover i{color:var(--p500)}
.side-entry{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line)}
.side-entry:last-child{border-bottom:none;padding-bottom:0}
.side-entry:first-of-type{padding-top:0}
.side-entry img{width:80px;height:54px;border-radius:var(--r-sm);object-fit:cover;flex:0 0 auto}
.side-entry h4{font-size:14.5px;font-weight:600;line-height:1.5;margin-bottom:4px}
.side-entry h4 a{color:var(--t1)}
.side-entry h4 a:hover{color:var(--p500)}
.side-entry span{font-size:12.5px;color:var(--t3)}
.side-dl{background:var(--ink);border-radius:var(--r-lg);padding:24px;color:rgba(255,255,255,.78)}
.side-dl h3{color:#fff;font-size:17px;margin-bottom:8px}
.side-dl p{font-size:14px;color:rgba(255,255,255,.7);margin-bottom:16px}
.side-dl .btn-accent{width:100%;height:48px;font-size:15px}
.side-dl small{display:block;margin-top:12px;font-size:12.5px;color:rgba(255,255,255,.55);text-align:center}

/* ---------- 规格定义卡片 ---------- */
.spec-section{margin-top:8px;padding:32px;background:var(--bg-alt);border-radius:var(--r-xl)}
.spec-section h2{font-size:clamp(20px,2.2vw,26px);margin-bottom:8px}
.spec-section > p{font-size:15px;color:var(--t2);margin-bottom:24px;max-width:640px}
.spec-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.spec-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:18px 20px;box-shadow:var(--sh1);
  display:flex;gap:14px;align-items:flex-start;transition:box-shadow .2s ease,transform .2s ease;
}
.spec-item:hover{box-shadow:var(--sh2);transform:translateY(-3px)}
.spec-item i{font-size:20px;color:var(--p500);line-height:1.5}
.spec-item dt{font-size:13.5px;color:var(--t3);font-weight:400;margin-bottom:3px}
.spec-item dd{margin:0;font-size:16px;font-weight:700;color:var(--t1)}
@media (max-width:767px){.spec-grid{grid-template-columns:1fr}.spec-section{padding:24px 18px}}
@media (min-width:768px) and (max-width:991px){.spec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* ---------- 同类互链 ---------- */
.related-section{margin-top:56px;padding-top:44px;border-top:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px}
.section-head h2{font-size:clamp(21px,2.3vw,28px)}
.section-head p{font-size:14.5px;color:var(--t3);margin-top:6px}
.related-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.related-card{
  display:flex;gap:18px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh1);transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.related-card:hover{border-color:rgba(30,107,176,.4);box-shadow:var(--sh2);transform:translateY(-4px)}
.related-icon{
  width:48px;height:48px;border-radius:var(--r-md);flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;
  background:var(--p50);color:var(--p600);font-size:22px;
}
.related-card h3{font-size:18px;font-weight:700;margin-bottom:6px}
.related-card p{font-size:14px;color:var(--t2);margin-bottom:10px}
.related-card .arrow{font-size:14px;font-weight:600;color:var(--p500);display:inline-flex;align-items:center;gap:6px}
@media (max-width:767px){.related-grid{grid-template-columns:1fr}}

/* ---------- 最新信息 ---------- */
.news-section{padding:64px 0}
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh1);
  display:flex;flex-direction:column;transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.news-card:hover{box-shadow:var(--sh2);transform:translateY(-4px);border-color:rgba(30,107,176,.3)}
.news-card img{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--bg-alt)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.badge-cat{
  align-self:flex-start;padding:4px 12px;border-radius:var(--r-pill);background:rgba(30,107,176,.12);
  color:var(--p600);font-size:13px;font-weight:600;margin-bottom:12px;
}
.news-body h3{font-size:17px;font-weight:700;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card:hover .news-body h3 a{color:var(--p600)}
.news-body h3 a{color:var(--t1)}
.news-body p{font-size:14px;color:var(--t2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--t3)}
.news-meta i{margin-right:5px}
.news-meta .go{color:var(--p500);font-weight:600}
@media (max-width:991px){.news-grid{grid-template-columns:1fr 1fr}}
@media (max-width:767px){.news-grid{grid-template-columns:1fr}.news-section{padding:48px 0}}

/* ---------- FAQ ---------- */
.faq-section{padding:8px 0 72px}
.faq-section h2{font-size:clamp(21px,2.3vw,28px);margin-bottom:8px}
.faq-section .faq-sub{font-size:15px;color:var(--t2);margin-bottom:26px}
.faq-accordion .accordion-item{
  border:1px solid var(--line);border-radius:var(--r-md)!important;background:#fff;margin-bottom:12px;overflow:hidden;
  box-shadow:var(--sh1);transition:border-color .2s ease;
}
.faq-accordion .accordion-item:hover{border-color:rgba(30,107,176,.3)}
.faq-accordion .accordion-button{
  font-size:17px;font-weight:600;color:var(--t1);background:#fff;padding:18px 22px;box-shadow:none;
  display:flex;align-items:center;gap:12px;
}
.faq-accordion .accordion-button:not(.collapsed){background:var(--p50);color:var(--p700)}
.faq-accordion .accordion-button:focus{box-shadow:0 0 0 3px rgba(30,107,176,.12);border-color:transparent;outline:none}
.faq-accordion .accordion-button::after{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='none' stroke='%2317558F' stroke-width='2' stroke-linecap='round' d='M8 3v10M3 8h10'/%3E%3C/svg%3E");
  background-size:16px;width:16px;height:16px;transition:transform .25s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:rotate(45deg)}
.faq-accordion .accordion-body{
  font-size:15px;color:var(--t2);background:#fff;padding:4px 22px 20px;line-height:1.85;
}
.faq-accordion .accordion-collapse{border:none}
@media (max-width:767px){.faq-accordion .accordion-button{font-size:15.5px;padding:15px 16px}
  .faq-accordion .accordion-body{padding:0 16px 18px}}

/* ---------- CTA ---------- */
.cta-wrap{padding:0 0 72px}
.cta-box{
  max-width:960px;margin:0 auto;background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-xl);
  padding:46px 32px;text-align:center;box-shadow:var(--sh1);
}
.cta-box h2{font-size:clamp(21px,2.4vw,30px);margin-bottom:12px}
.cta-box p{font-size:15.5px;color:var(--t2);max-width:560px;margin:0 auto 26px}
.cta-actions{display:flex;align-items:center;justify-content:center;gap:20px;flex-wrap:wrap}
@media (max-width:575px){.cta-box{padding:32px 20px}.cta-actions{flex-direction:column}
  .cta-actions .btn-main{width:100%}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.78);padding:56px 0 0;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:800;margin-bottom:14px}
.footer-brand .brand-icon{background:linear-gradient(135deg,var(--p600),var(--p500))}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin:0 0 16px}
.site-footer p{color:rgba(255,255,255,.68);line-height:1.85}
.footer-list{display:flex;flex-direction:column;gap:11px}
.footer-list a,.footer-list li{color:rgba(255,255,255,.72);font-size:14px}
.footer-list a:hover{color:var(--a500)}
.footer-list i{color:var(--a500);margin-right:6px}
.footer-qr{display:flex;align-items:center;gap:12px;margin-top:18px}
.footer-qr .box{
  width:64px;height:64px;border-radius:var(--r-sm);background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:26px;
}
.footer-qr small{color:rgba(255,255,255,.6);font-size:12.5px;line-height:1.6}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;align-items:center;justify-content:space-between;
  gap:14px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.65)}
.footer-bottom a:hover{color:var(--a500)}
@media (max-width:991px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px}}
@media (max-width:575px){.footer-grid{grid-template-columns:1fr}.footer-bottom{flex-direction:column;align-items:flex-start}}

/* 进入动画 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .3s ease,transform .3s ease}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* roulang page: category2 */
:root{
  --p900:#0B2A4A; --p700:#12406E; --p600:#17558F; --p500:#1E6BB0; --p100:#DCEAF6; --p50:#F1F7FC;
  --a600:#D9660F; --a500:#F0791E;
  --ok:#12A594; --warn:#D9A21B; --err:#D2493F;
  --bg:#F5F8FB; --bg-alt:#EDF3FA; --ink:#0E2440;
  --t1:#10243A; --t2:#45586E; --t3:#8496A8;
  --line:#E3EAF2; --line-strong:#CFDBE8;
  --sh1:0 1px 2px rgba(16,42,74,.06);
  --sh2:0 6px 18px rgba(16,42,74,.09);
  --sh3:0 18px 44px rgba(16,42,74,.13);
  --r-xs:6px; --r-sm:10px; --r-md:14px; --r-lg:20px; --r-xl:28px; --r-pill:999px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--t2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.78;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;object-fit:cover}
a{color:var(--p500);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease}
a:hover{color:var(--p700)}
h1,h2,h3,h4{margin:0;color:var(--t1);font-weight:700;letter-spacing:.2px}
h1{font-size:clamp(28px,4.2vw,46px);line-height:1.22;font-weight:800}
h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3}
h3{font-size:clamp(18px,1.8vw,22px);line-height:1.4;font-weight:600}
p{margin:0 0 20px}
ul,ol{margin:0 0 20px;padding-left:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid rgba(30,107,176,.4);outline-offset:2px}
.container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部条 ---------- */
.topbar{background:var(--p900);color:rgba(255,255,255,.8);font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;min-height:34px;gap:16px}
.topbar-note{display:flex;align-items:center;gap:8px;color:rgba(255,255,255,.82)}
.topbar-note i{color:var(--a500)}
.topbar-links{display:flex;gap:22px}
.topbar-links a{color:rgba(255,255,255,.8)}
.topbar-links a:hover{color:#fff}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;background:#fff;
  border-bottom:1px solid var(--line);transition:box-shadow .2s ease;
}
.site-header.is-stuck{box-shadow:var(--sh1)}
.nav-inner{display:flex;align-items:center;gap:20px;min-height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-icon{
  width:32px;height:32px;border-radius:var(--r-sm);display:inline-flex;align-items:center;justify-content:center;
  background:var(--p500);color:#fff;font-size:17px;box-shadow:var(--sh1);
}
.brand-text{font-size:18px;font-weight:800;color:var(--t1);letter-spacing:.3px}
.brand:hover .brand-text{color:var(--p500)}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-menu a{
  position:relative;display:inline-block;padding:9px 14px;border-radius:var(--r-pill);
  font-size:15px;color:var(--t2);font-weight:500;
}
.nav-menu a:hover{background:var(--p50);color:var(--p500)}
.nav-menu a.active{color:var(--t1);font-weight:700}
.nav-menu a.active::after{
  content:"";position:absolute;left:50%;bottom:-2px;transform:translateX(-50%);
  width:26px;height:3px;border-radius:var(--r-pill);background:var(--p500);
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{
  display:flex;align-items:center;gap:8px;width:220px;height:42px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-pill);background:#fff;transition:border-color .18s ease,box-shadow .18s ease;
}
.search-box i{color:var(--t3);font-size:15px}
.search-box input{border:0;outline:0;background:transparent;width:100%;font-size:14px;color:var(--t1)}
.search-box input::placeholder{color:var(--t3)}
.search-box:focus-within{border-color:var(--p500);box-shadow:0 0 0 3px rgba(30,107,176,.12)}
.btn-base{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-sm);font-size:15px;font-weight:600;line-height:1;
  padding:0 20px;height:44px;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-brand{background:var(--p500);color:#fff;box-shadow:var(--sh1)}
.btn-brand:hover{background:var(--p600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-brand:active{transform:translateY(0);box-shadow:none}
.btn-accent{
  background:var(--a500);color:#fff;box-shadow:var(--sh1);border-radius:var(--r-pill);height:44px;padding:0 22px;
}
.btn-accent:hover{background:var(--a600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-accent:active{transform:translateY(0);box-shadow:none}
.btn-outline-brand{background:#fff;color:var(--p500);border-color:var(--line-strong)}
.btn-outline-brand:hover{background:var(--p50);color:var(--p600);border-color:var(--p500);transform:translateY(-1px);box-shadow:var(--sh1)}
.btn-ghost{background:transparent;color:var(--t1);border-color:var(--line)}
.btn-ghost:hover{background:#fff;border-color:var(--line-strong);box-shadow:var(--sh1);transform:translateY(-1px)}
.btn-lg-x{height:52px;padding:0 26px;font-size:16px;border-radius:var(--r-pill)}
.btn-block{width:100%}
.nav-toggle{
  width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;
  color:var(--t1);font-size:20px;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle:hover{background:var(--p50);border-color:var(--p100)}
.nav-drawer{
  display:none;border-top:1px solid var(--line);background:#fff;padding:16px 20px 24px;
}
.nav-drawer.open{display:block}
.nav-drawer .search-box{width:100%;margin-bottom:14px}
.nav-drawer nav{display:flex;flex-direction:column;gap:4px;margin-bottom:16px}
.nav-drawer nav a{padding:12px 14px;border-radius:var(--r-sm);font-size:16px;color:var(--t2);font-weight:500}
.nav-drawer nav a:hover{background:var(--p50);color:var(--p500)}
.nav-drawer nav a.active{background:var(--p50);color:var(--p600);font-weight:700}
.nav-drawer .drawer-btns{display:flex;flex-direction:column;gap:10px}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;background:var(--bg-alt);border-bottom:1px solid var(--line);
  padding:34px 0 38px;overflow:hidden;
}
.page-head::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(237,243,250,.94),rgba(237,243,250,.99)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;opacity:.9;
}
.page-head .container-x{position:relative;z-index:1}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--t3);margin-bottom:18px}
.crumb a{color:var(--t3)}
.crumb a:hover{color:var(--p500)}
.crumb .sep{color:var(--line-strong)}
.crumb .current{color:var(--p500);font-weight:600}
.head-inner{max-width:820px;margin:0 auto;text-align:center}
.head-inner h1{margin-bottom:14px}
.head-lead{font-size:17px;line-height:1.7;color:var(--t2);max-width:640px;margin:0 auto 22px}
.head-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:10px}
.badge-x{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;line-height:1.6;
}
.badge-brand{background:rgba(30,107,176,.10);color:var(--p600)}
.badge-accent{background:rgba(240,121,30,.12);color:var(--a600)}
.badge-ok{background:rgba(18,165,148,.12);color:var(--ok)}
.badge-warn{background:rgba(217,162,27,.14);color:#9a7412}

/* ---------- 锚点条 ---------- */
.anchor-bar{
  position:sticky;top:68px;z-index:1020;background:#fff;border-bottom:1px solid var(--line);
  box-shadow:var(--sh1);
}
.anchor-inner{display:flex;gap:8px;overflow-x:auto;padding:10px 0;scrollbar-width:none}
.anchor-inner::-webkit-scrollbar{display:none}
.anchor-inner a{
  flex:0 0 auto;padding:7px 16px;border-radius:var(--r-pill);font-size:14px;font-weight:600;
  color:var(--t2);border:1px solid var(--line);background:#fff;
}
.anchor-inner a:hover{color:var(--p500);border-color:var(--p100);background:var(--p50)}

/* ---------- 通用区块 ---------- */
.section{padding:64px 0}
.section-alt{background:var(--bg-alt)}
.section-head{max-width:640px;margin-bottom:34px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{margin-bottom:12px}
.section-head p{font-size:15px;color:var(--t2);margin:0}
.narrow{max-width:760px;margin:0 auto}

/* ---------- 正文图文块 ---------- */
.article-block{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  padding:32px;box-shadow:var(--sh1);margin-bottom:28px;
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.article-block:hover{box-shadow:var(--sh2);border-color:rgba(30,107,176,.3)}
.article-block .block-body{max-width:760px;margin:0 auto}
.article-block h2{margin-bottom:16px;padding-left:14px;position:relative}
.article-block h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:var(--r-pill);background:var(--p500);
}
.article-block p{font-size:16px;color:var(--t2)}
.block-figure{margin:24px 0 6px;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh1)}
.block-figure img{width:100%;aspect-ratio:16/10}
.block-figure figcaption{font-size:13px;color:var(--t3);text-align:center;padding:10px 4px 0;background:#fff}
.check-list{display:grid;gap:12px;margin:22px 0 6px}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--t2);
  padding:14px 16px;border-radius:var(--r-md);background:var(--p50);
}
.check-list li i{color:var(--p500);font-size:18px;line-height:1.5;flex-shrink:0}
.check-list li strong{color:var(--t1);font-weight:700}

/* ---------- 参数清单 ---------- */
.spec-wrap{
  background:var(--bg-alt);border-radius:var(--r-xl);padding:28px;
}
.spec-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.spec-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:20px 22px;
  box-shadow:var(--sh1);transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.spec-card:hover{box-shadow:var(--sh2);transform:translateY(-4px);border-color:rgba(30,107,176,.3)}
.spec-card .spec-icon{
  width:38px;height:38px;border-radius:var(--r-sm);background:var(--p50);color:var(--p500);
  display:inline-flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:12px;
}
.spec-card dt{font-size:14px;color:var(--t3);font-weight:500;margin-bottom:4px}
.spec-card dd{margin:0;font-size:16px;font-weight:700;color:var(--t1);line-height:1.6}

/* ---------- 底部三卡 ---------- */
.tri-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.tri-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 24px;
  box-shadow:var(--sh1);transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;height:100%;
}
.tri-card:hover{box-shadow:var(--sh2);transform:translateY(-4px);border-color:rgba(30,107,176,.35)}
.tri-card .tri-icon{
  width:46px;height:46px;border-radius:var(--r-md);background:var(--p50);color:var(--p500);
  display:inline-flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:16px;
}
.tri-card:hover .tri-icon{background:rgba(30,107,176,.12)}
.tri-card h3{margin-bottom:8px;font-size:19px}
.tri-card:hover h3{color:var(--p500)}
.tri-card p{font-size:14.5px;color:var(--t2);margin:0 0 14px}
.tri-card .tri-more{font-size:14px;font-weight:600;color:var(--p500);display:inline-flex;align-items:center;gap:6px}
.tri-card .tri-more i{transition:transform .2s ease}
.tri-card:hover .tri-more i{transform:translateX(4px)}

/* ---------- 最新信息 ---------- */
.news-list{display:grid;gap:20px}
.news-card{
  display:grid;grid-template-columns:180px 1fr;gap:22px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:18px;
  box-shadow:var(--sh1);transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.news-card:hover{box-shadow:var(--sh2);transform:translateY(-4px);border-color:rgba(30,107,176,.3)}
.news-thumb{border-radius:var(--r-md);overflow:hidden;background:var(--bg-alt)}
.news-thumb img{width:100%;aspect-ratio:16/10}
.news-body h3{font-size:18px;margin-bottom:8px;transition:color .18s ease}
.news-card:hover .news-body h3{color:var(--p500)}
.news-body p{font-size:14.5px;color:var(--t2);margin:0 0 12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13.5px;color:var(--t3)}
.news-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line-strong)}

/* ---------- FAQ ---------- */
.faq-acc{display:grid;gap:12px}
.faq-acc .accordion-item{
  border:1px solid var(--line);border-radius:var(--r-md);background:#fff;overflow:hidden;box-shadow:var(--sh1);
}
.faq-acc .accordion-button{
  font-size:17px;font-weight:600;color:var(--t1);background:#fff;padding:20px 22px;
  box-shadow:none!important;border:0;line-height:1.5;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--p600);background:#fff}
.faq-acc .accordion-button:hover{color:var(--p500)}
.faq-acc .accordion-button::after{
  content:"+";background-image:none;font-size:22px;font-weight:400;color:var(--p500);
  width:24px;height:24px;line-height:22px;text-align:center;transform:rotate(0deg);transition:transform .22s ease;
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(45deg)}
.faq-acc .accordion-body{
  padding:0 22px 22px;font-size:15.5px;color:var(--t2);background:var(--p50);line-height:1.8;
}
.faq-acc .accordion-collapse{border-top:1px solid var(--line)}

/* ---------- CTA ---------- */
.cta-band{padding:28px 0 88px}
.cta-inner{
  max-width:960px;margin:0 auto;background:var(--ink);color:rgba(255,255,255,.86);
  border-radius:var(--r-xl);padding:48px 32px;text-align:center;box-shadow:var(--sh3);
}
.cta-inner h2{color:#fff;margin-bottom:12px}
.cta-inner p{color:rgba(255,255,255,.78);max-width:560px;margin:0 auto 26px;font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;align-items:center}
.cta-actions .text-link{color:rgba(255,255,255,.86);border-bottom:1px solid rgba(255,255,255,.35);padding-bottom:2px}
.cta-actions .text-link:hover{color:#fff;border-bottom-color:#fff}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.8);padding:64px 0 0;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-icon{background:var(--p500)}
.footer-brand span:last-child{font-size:17px;font-weight:800;color:#fff}
.site-footer p{color:rgba(255,255,255,.72);font-size:14px;line-height:1.8;margin:0;max-width:340px}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-list{display:grid;gap:10px;margin:0}
.footer-list li{color:rgba(255,255,255,.75)}
.footer-list i{color:var(--a500);margin-right:6px}
.footer-list a{color:rgba(255,255,255,.78)}
.footer-list a:hover{color:var(--a500)}
.footer-qr{display:flex;align-items:center;gap:12px;margin-top:16px}
.footer-qr .box{
  width:76px;height:76px;border-radius:var(--r-md);background:#fff;color:var(--p700);
  display:flex;align-items:center;justify-content:center;font-size:32px;flex-shrink:0;
}
.footer-qr small{font-size:12.5px;color:rgba(255,255,255,.6);line-height:1.6}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13.5px;color:rgba(255,255,255,.6);
}
.footer-bottom a{color:rgba(255,255,255,.7)}
.footer-bottom a:hover{color:var(--a500)}

/* ---------- 入场动画 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .3s ease,transform .3s ease}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container-x{max-width:100%}
}
@media (max-width:991px){
  .nav-inner{min-height:62px}
  .anchor-bar{top:62px}
  .search-box{display:none}
  .nav-drawer .search-box{display:flex}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .section{padding:56px 0}
  .tri-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .topbar{display:none}
  .nav-inner{min-height:58px}
  .anchor-bar{top:58px}
  .page-head{padding:26px 0 30px}
  .head-lead{font-size:15.5px}
  .section{padding:48px 0}
  .article-block{padding:24px 20px}
  .spec-grid{grid-template-columns:1fr}
  .spec-wrap{padding:20px}
  .tri-grid{grid-template-columns:1fr}
  .news-card{grid-template-columns:1fr;gap:14px}
  .news-thumb img{aspect-ratio:16/9}
  .cta-inner{padding:36px 22px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column}
}
@media (max-width:575px){
  h1{font-size:26px}
  .brand-text{font-size:16px}
  .cta-actions{flex-direction:column}
  .cta-actions .btn-base{width:100%}
  .article-block h2{padding-left:12px}
  .article-block h2::before{top:4px;bottom:4px}
}