:root{--blue:#0033A0;--bright:#0052CC;--deep:#002066;--ink:#0A1628;--text:#1E2A3A;--muted:#4A5568;--soft:#718096;--bg:#fff;--deepbg:#F5F7FA;--panel:#EEF1F6;--border:rgba(0,51,160,.14);--shadow:0 12px 36px rgba(0,33,102,.08);--radius:14px;--max:1220px}
*{box-sizing:border-box}html{scroll-behavior:smooth;overflow-x:hidden}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,"Segoe UI","Microsoft YaHei",Arial,sans-serif;line-height:1.75;overflow-x:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}.shell{width:min(var(--max),calc(100% - 32px));margin:auto}.site-header{position:fixed;z-index:50;inset:0 0 auto;background:#fff}.brand-strip{height:22px;background:var(--deep);color:#fff;font-size:12px}.strip-inner{height:22px;display:flex;align-items:center;justify-content:space-between}.strip-brand{font-weight:800;letter-spacing:.04em}.text-button{border:0;background:transparent;color:#fff;padding:0 8px;min-height:22px}.masthead{height:68px;border-bottom:1px solid var(--border);background:#fff}.masthead-inner{height:100%;display:grid;grid-template-columns:1fr auto 1fr;align-items:center}.brand-mark{justify-self:start;display:flex;min-height:44px;align-items:center}.logo-img,.panel-logo,.footer-logo{display:block;max-height:36px;max-width:156px;width:auto;object-fit:contain}.logo-fallback{font-size:26px;font-weight:900;color:var(--deep)}.catalog-button,.app-link,.button{min-height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;padding:0 18px;font-weight:800}.catalog-button{border:1px solid var(--blue);background:#fff;color:var(--blue)}.app-link{justify-self:end;background:linear-gradient(135deg,var(--bright),var(--blue) 50%,var(--deep));color:#fff}.tabbar{height:44px;background:var(--deepbg);border-bottom:1px solid var(--border)}.tabbar-inner{height:100%;display:flex;align-items:center;gap:8px}.tab{display:inline-flex;align-items:center;min-height:32px;padding:0 12px;border-radius:8px;color:var(--ink);font-weight:700}.tab:hover,.tab:focus-visible{outline:2px solid rgba(0,82,204,.22)}.tab.is-current{background:var(--blue);color:#fff}.site-main{padding-top:134px}.section{padding:58px 0}.section.alt{background:var(--deepbg)}.section.compact{padding:40px 0}.eyebrow{display:inline-block;color:var(--blue);font-size:13px;font-weight:900;letter-spacing:.08em;text-transform:uppercase}.hero h1,.page-hero h1{margin:6px 0 14px;color:var(--ink);font-size:clamp(28px,4vw,34px);line-height:1.2}.hero h2,.section h2,.page-hero h2{color:var(--ink);line-height:1.3}.lead{font-size:18px;color:var(--muted);max-width:820px}.hero-media{max-height:300px;min-height:180px;background:var(--panel);display:grid;place-items:center;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.media-img{display:block;width:100%;height:auto;max-height:100%;object-fit:contain;object-position:center}.media-placeholder{width:100%;min-height:180px;background:linear-gradient(135deg,#f8fbff,#e9f0fb)}.hero-media .media-img{max-height:300px}.hero-copy{padding-top:26px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}.button.primary{background:linear-gradient(135deg,var(--bright),var(--blue) 50%,var(--deep));color:#fff}.button.secondary{border:1px solid var(--blue);background:#fff;color:var(--blue)}.button:hover,.button:focus-visible,.catalog-button:hover,.catalog-button:focus-visible,.app-link:hover,.app-link:focus-visible{outline:3px solid rgba(0,82,204,.18);outline-offset:2px}.grid{display:grid;gap:20px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.grid-6{grid-template-columns:repeat(3,minmax(0,1fr))}.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}.card h3{margin:0 0 8px;color:var(--ink)}.card p{margin:0;color:var(--muted)}.mini-tag{display:inline-flex;min-height:28px;align-items:center;padding:0 9px;border-radius:7px;background:var(--blue);color:#fff;font-size:12px;font-weight:800;margin-bottom:10px}.mini-tag.bright{background:var(--bright)}.media-card{overflow:hidden;padding:0}.media-box{height:210px;background:var(--panel);display:grid;place-items:center;border-bottom:1px solid var(--border)}.media-box .media-img{max-height:210px}.media-copy{padding:22px}.number-list{display:grid;gap:12px}.number-item{display:grid;grid-template-columns:64px 1fr;gap:18px;align-items:start;padding:18px 0;border-bottom:1px solid var(--border)}.num{font-size:34px;line-height:1;color:var(--blue);font-weight:900}.rack{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.rack a{min-height:112px;padding:18px;border:1px solid var(--border);border-radius:12px;background:#fff;display:flex;flex-direction:column;justify-content:space-between}.rack a:hover{border-color:var(--bright);box-shadow:var(--shadow)}.timeline{position:relative;margin:0;padding:0 0 0 28px;list-style:none}.timeline:before{content:"";position:absolute;left:8px;top:8px;bottom:8px;width:2px;background:var(--border)}.timeline li{position:relative;padding:0 0 28px 18px}.timeline li:before{content:"";position:absolute;left:-25px;top:7px;width:12px;height:12px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 5px #eaf0fb}.status{display:inline-flex;padding:4px 9px;border-radius:7px;background:#eaf0fb;color:var(--deep);font-weight:800;font-size:12px}.prose{max-width:860px}.prose p{margin:0 0 18px}.prose h2{margin:34px 0 12px}.notice{border-left:4px solid var(--blue);background:var(--deepbg);padding:18px 20px;border-radius:0 12px 12px 0}.faq{display:grid;gap:14px}.faq article{padding:22px;border:1px solid var(--border);border-radius:12px;background:#fff}.faq h2{font-size:18px;margin:0 0 8px}.site-footer{background:var(--ink);color:#A0AEC0;padding:48px 0 calc(28px + env(safe-area-inset-bottom))}.footer-grid{display:grid;grid-template-columns:1.3fr repeat(4,1fr);gap:28px}.footer-grid h2{color:#fff;font-size:15px}.footer-grid a{display:block;padding:5px 0}.footer-grid a:hover{color:#fff}.footer-brand{display:flex;gap:12px;align-items:flex-start;color:#fff}.footer-brand span{display:block;color:#A0AEC0;font-size:13px}.footer-note{border-top:1px solid rgba(255,255,255,.12);margin-top:28px;padding-top:22px;font-size:13px}.overlay-open{overflow:hidden}.overlay-panel{position:fixed;z-index:80;left:0;right:0;top:90px;visibility:hidden;pointer-events:none;opacity:0;transform:translateY(-10px);transition:.18s ease}.overlay-panel.is-open{visibility:visible;pointer-events:auto;opacity:1;transform:none}.overlay-card{width:min(var(--max),calc(100% - 32px));max-height:calc(100vh - 110px);overflow:auto;margin:auto;background:#fff;border:1px solid var(--border);border-radius:0 0 14px 14px;box-shadow:0 24px 60px rgba(0,20,70,.18);padding:22px}.panel-head{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:18px}.panel-brand{display:flex;align-items:center;gap:12px}.close-button{min-width:64px;min-height:44px;border:1px solid var(--border);background:#fff;color:var(--ink);border-radius:10px}.catalog-groups{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.catalog-groups section{min-width:0}.catalog-groups h2{font-size:15px;color:var(--blue)}.catalog-groups a{display:block;border-top:1px solid var(--border);padding:12px 0}.catalog-groups b{display:block;color:var(--ink)}.catalog-groups span{display:block;color:var(--muted);font-size:13px;line-height:1.55}.search-card{max-width:760px}.search-look{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:12px;border:1px solid var(--border);border-radius:12px;padding:10px 14px}.search-look span{font-weight:800;color:var(--blue)}.search-look input{width:100%;border:0;outline:0;min-height:36px;color:var(--text)}.preset-links{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.preset-links a{padding:10px 14px;border:1px solid var(--border);border-radius:9px;color:var(--blue);font-weight:700}.muted{color:var(--soft)}.page-overlay{position:fixed;z-index:70;inset:0;background:rgba(3,18,48,.42);visibility:hidden;pointer-events:none;opacity:0;transition:.18s}.page-overlay.is-open{visibility:visible;pointer-events:auto;opacity:1}.mobile-bottom{display:none}.app-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:36px;align-items:center}.app-art{height:420px;background:var(--panel);border:1px solid var(--border);border-radius:18px;display:grid;place-items:center;overflow:hidden}.app-art .media-img{max-height:420px}.icon-art{width:72px;height:72px;border-radius:16px;background:var(--panel);display:grid;place-items:center;overflow:hidden}.icon-art .media-img{width:100%;height:100%;object-fit:contain}
@media(max-width:900px){.grid-4,.rack{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-6{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-brand{grid-column:1/-1}.catalog-groups{grid-template-columns:repeat(2,minmax(0,1fr))}.app-layout{grid-template-columns:1fr}}
@media(max-width:760px){.site-main{padding-top:90px;padding-bottom:62px}.tabbar{display:none}.shell{width:min(var(--max),calc(100% - 32px))}.masthead-inner{grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);gap:8px}.brand-mark{min-width:0}.logo-img{max-width:112px}.catalog-button,.app-link{padding:0 12px;white-space:nowrap}.overlay-panel{top:90px}.catalog-panel .overlay-card,.search-panel .overlay-card{width:100%;max-height:calc(100vh - 90px);border-radius:0}.search-panel .overlay-card{height:calc(100vh - 90px);background:var(--deepbg)}.catalog-groups{grid-template-columns:1fr}.grid-2,.grid-3,.grid-4,.grid-6,.rack{grid-template-columns:1fr}.section{padding:42px 0}.number-item{grid-template-columns:52px 1fr}.media-box{height:200px}.mobile-bottom{position:fixed;z-index:55;left:0;right:0;bottom:0;height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(5,1fr);background:#fff;border-top:1px solid var(--border)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-width:0;font-size:13px;font-weight:800;color:var(--muted)}.mobile-bottom a.is-current{background:var(--blue);color:#fff}.site-footer{padding-bottom:calc(78px + env(safe-area-inset-bottom))}.app-art{height:360px}}

/* Image integrity rules */

img{max-width:100%;width:100%;height:auto}
.hero-media{
  width:100%;
  max-width:960px;
  margin:0 auto;
  min-height:160px;
  aspect-ratio:16/9;
  padding:14px;
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:visible;
}
.hero-media .media-img,
.hero-media .media-placeholder{
  width:100%;
  max-width:860px;
  height:auto;
  max-height:272px;
  margin:0 auto;
  object-fit:contain;
  object-position:center;
}
.media-placeholder{min-height:140px}
.media-card{display:flex;flex-direction:column}
.media-box{
  width:100%;
  min-height:170px;
  aspect-ratio:16/10;
  padding:10px;
  background:var(--panel);
  display:grid;
  place-items:center;
  overflow:visible;
}
.media-box .media-img,
.media-box .media-placeholder{
  width:100%;
  max-width:100%;
  height:auto;
  max-height:210px;
  object-fit:contain;
  object-position:center;
}
.logo-img,.panel-logo,.footer-logo{
  width:auto;
  height:auto;
  max-width:156px;
  max-height:36px;
  object-fit:contain;
}
.app-layout > div:last-child{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:14px;
}
.app-art{
  width:100%;
  max-width:320px;
  min-height:240px;
  max-height:none;
  aspect-ratio:3/4;
  padding:12px;
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:18px;
  display:grid;
  place-items:center;
  overflow:visible;
  margin:0 auto;
}
.app-art .media-img,
.app-art .media-placeholder{
  width:100%;
  max-width:260px;
  height:auto;
  max-height:380px;
  object-fit:contain;
  object-position:center;
}
.icon-art{
  width:72px;
  height:72px;
  border-radius:16px;
  background:var(--panel);
  display:grid;
  place-items:center;
  overflow:visible;
}
.icon-art .media-img,
.icon-art .media-placeholder{
  width:100%;
  max-width:72px;
  height:auto;
  max-height:72px;
  object-fit:contain;
}
@media(max-width:1280px){
  .hero-media{max-width:900px}
  .hero-media .media-img,.hero-media .media-placeholder{max-width:800px;max-height:250px}
}
@media(max-width:900px){
  .hero-media{max-width:820px;min-height:150px;padding:12px}
  .hero-media .media-img,.hero-media .media-placeholder{max-width:720px;max-height:230px}
  .media-box{min-height:155px}
  .media-box .media-img,.media-box .media-placeholder{max-height:190px}
  .app-art{max-width:300px;min-height:220px}
  .app-art .media-img,.app-art .media-placeholder{max-width:244px;max-height:340px}
}
@media(max-width:760px){
  .site-main{padding-top:90px;padding-bottom:62px}
  .tabbar{display:none}
  .shell{width:min(var(--max),calc(100% - 32px))}
  .masthead-inner{grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);gap:8px}
  .brand-mark{min-width:0}
  .logo-img{max-width:112px}
  .catalog-button,.app-link{padding:0 12px;white-space:nowrap}
  .overlay-panel{top:90px}
  .catalog-panel .overlay-card,.search-panel .overlay-card{width:100%;max-height:calc(100vh - 90px);border-radius:0}
  .search-panel .overlay-card{height:calc(100vh - 90px);background:var(--deepbg)}
  .catalog-groups{grid-template-columns:1fr}
  .grid-2,.grid-3,.grid-4,.grid-6,.rack{grid-template-columns:1fr}
  .section{padding:42px 0}
  .number-item{grid-template-columns:52px 1fr}
  .mobile-bottom{position:fixed;z-index:55;left:0;right:0;bottom:0;height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(5,1fr);background:#fff;border-top:1px solid var(--border)}
  .mobile-bottom a{display:flex;align-items:center;justify-content:center;min-width:0;font-size:13px;font-weight:800;color:var(--muted)}
  .mobile-bottom a.is-current{background:var(--blue);color:#fff}
  .site-footer{padding-bottom:calc(78px + env(safe-area-inset-bottom))}
  .hero-media{
    max-width:100%;
    min-height:128px;
    aspect-ratio:auto;
    padding:10px;
  }
  .hero-media .media-img,
  .hero-media .media-placeholder{
    max-width:100%;
    max-height:210px;
  }
  .media-box{
    min-height:126px;
    aspect-ratio:auto;
    padding:8px;
  }
  .media-box .media-img,
  .media-box .media-placeholder{
    max-height:176px;
  }
  .logo-img,.panel-logo,.footer-logo{
    width:auto;
    max-width:112px;
    max-height:32px;
  }
  .app-art{
    max-width:260px;
    min-height:210px;
    padding:10px;
  }
  .app-art .media-img,
  .app-art .media-placeholder{
    max-width:220px;
    max-height:320px;
  }
}

/* Final image-frame balance correction: let real images define the visual height. */
.hero-media{
  width:min(100%,820px);
  max-width:820px;
  min-height:0;
  aspect-ratio:auto;
  padding:10px;
  margin-left:auto;
  margin-right:auto;
  overflow:visible;
}
.hero-media .media-img{
  display:block;
  width:auto;
  max-width:100%;
  height:auto;
  max-height:300px;
  margin:0 auto;
  object-fit:contain;
  object-position:center;
}
.hero-media .media-placeholder{
  width:100%;
  min-height:220px;
  aspect-ratio:16/9;
  max-height:none;
}

.media-box{
  min-height:0;
  height:auto;
  aspect-ratio:auto;
  padding:10px;
  overflow:visible;
}
.media-box .media-img{
  display:block;
  width:auto;
  max-width:100%;
  height:auto;
  max-height:220px;
  margin:0 auto;
}
.media-box .media-placeholder{
  width:100%;
  min-height:170px;
  aspect-ratio:16/10;
}

.app-art{
  min-height:0;
  height:auto;
  aspect-ratio:auto;
  width:min(100%,300px);
  max-width:300px;
  padding:10px;
}
.app-art .media-img{
  display:block;
  width:auto;
  max-width:100%;
  height:auto;
  max-height:420px;
  margin:0 auto;
}
.app-art .media-placeholder{
  width:100%;
  min-height:300px;
  aspect-ratio:3/4;
}

@media (max-width:1280px){
  .hero-media{width:min(100%,760px);max-width:760px}
  .hero-media .media-img{max-height:280px}
}

@media (max-width:900px){
  .hero-media{width:min(100%,680px);max-width:680px;padding:9px}
  .hero-media .media-img{max-height:250px}
  .hero-media .media-placeholder{min-height:190px}
  .media-box .media-img{max-height:200px}
  .media-box .media-placeholder{min-height:150px}
  .app-art{width:min(100%,280px);max-width:280px}
  .app-art .media-img{max-height:360px}
}

@media (max-width:760px){
  .hero-media{
    width:100%;
    max-width:100%;
    min-height:0;
    padding:8px;
    aspect-ratio:auto;
  }
  .hero-media .media-img{
    width:auto;
    max-width:100%;
    height:auto;
    max-height:210px;
  }
  .hero-media .media-placeholder{
    min-height:135px;
    aspect-ratio:16/9;
  }
  .media-box{
    min-height:0;
    height:auto;
    aspect-ratio:auto;
    padding:8px;
  }
  .media-box .media-img{
    width:auto;
    max-width:100%;
    height:auto;
    max-height:180px;
  }
  .media-box .media-placeholder{
    min-height:125px;
    aspect-ratio:16/10;
  }
  .app-art{
    width:min(100%,250px);
    max-width:250px;
    min-height:0;
    height:auto;
    aspect-ratio:auto;
    padding:8px;
  }
  .app-art .media-img{
    width:auto;
    max-width:100%;
    height:auto;
    max-height:330px;
  }
  .app-art .media-placeholder{
    min-height:260px;
    aspect-ratio:3/4;
  }
}