*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#EEF4FB;color:#1E2834;font-family:system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}a{color:inherit;text-decoration:none}button{font:inherit}img{max-width:100%;object-fit:contain;object-position:center}.locked{overflow:hidden}.site-header{position:fixed;inset:0 0 auto;z-index:40;box-shadow:0 5px 20px rgba(26,42,68,.06)}.top-strip{height:20px;background:#1A2A44;color:#F7FAFD;display:flex;align-items:center;justify-content:space-between;padding:0 max(16px,calc((100% - 960px)/2));font-size:12px}.text-button{border:0;background:none;color:#F7FAFD;padding:0 4px;cursor:pointer}.brand-row{height:54px;background:#F7FAFD;border-bottom:1px solid rgba(200,30,46,.45);display:flex;align-items:center;justify-content:space-between;padding:0 max(16px,calc((100% - 960px)/2))}.brand-link{height:44px;display:flex;align-items:center;font-weight:800;font-size:16px}.brand-link img{height:24px;width:auto}.brand-actions{display:flex;align-items:center;gap:8px}.mini-app,.menu-button,.btn-primary,.btn-secondary{min-height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:8px;padding:0 15px;font-weight:700;font-size:14px;transition:.22s ease;cursor:pointer}.mini-app,.btn-secondary{background:#F7FAFD;border:1px solid #C81E2E;color:#1E2834}.menu-button,.btn-primary{border:0;background:linear-gradient(135deg,#1A2A44 0%,#C81E2E 100%);color:#F7FAFD;box-shadow:0 0 0 0 rgba(200,30,46,0)}.menu-button:hover,.menu-button:focus-visible,.btn-primary:hover,.btn-primary:focus-visible,.quick-item.is-current:hover{box-shadow:0 0 18px rgba(200,30,46,.5),0 0 4px rgba(74,122,184,.35)}.menu-button:active,.btn-primary:active{box-shadow:0 0 26px rgba(200,30,46,.75)}.quick-nav{height:44px;background:#F7FAFD;display:flex;align-items:center;gap:28px;padding:0 max(16px,calc((100% - 960px)/2));font-size:13px}.quick-item{display:flex;align-items:center;gap:8px;min-height:44px}.dot{width:10px;height:10px;border:2px solid #4A7AB8;border-radius:50%;display:inline-block}.quick-item.is-current .dot{background:#C81E2E;border-color:#C81E2E;box-shadow:0 0 18px rgba(200,30,46,.5),0 0 4px rgba(74,122,184,.35)}.site-main{max-width:960px;margin:0 auto;padding:150px 20px 54px}.hero{padding:40px 0 30px}.eyebrow{font-size:12px;color:#C81E2E;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.index-points{display:flex;gap:10px;margin-bottom:18px}.index-points a{border:1px solid rgba(20,24,32,.12);background:#F7FAFD;padding:7px 10px;border-radius:99px}.hero h1,.page-head h1{font-size:24px;line-height:1.3;color:#141820;margin:8px 0 10px}.hero .lead,.page-head .lead{max-width:720px;color:#4A5A6E}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.section{padding:28px 0;border-top:1px solid rgba(20,24,32,.12)}.section h2{font-size:20px;line-height:1.35;margin:0 0 12px;color:#141820}.section h3{font-size:16px;margin:0 0 8px}.media-slot{background:#F7FAFD;border:1px solid rgba(20,24,32,.12);border-radius:8px;display:flex;align-items:center;justify-content:center;overflow:hidden}.media-slot img{width:100%;height:100%;object-fit:contain}.ice-cut{display:grid;grid-template-columns:300px 1fr;gap:26px;align-items:center}.ice-shape{width:280px;height:176px;clip-path:polygon(10% 0,100% 0,92% 86%,68% 100%,0 82%,4% 18%)}.two-cold{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}.cold-card,.door-card,.topic-card,.status-card,.note-card,.center-card,.policy-block{background:#F7FAFD;border:1px solid rgba(20,24,32,.12);border-radius:8px;padding:18px;box-shadow:0 12px 28px rgba(26,42,68,.08)}.cold-card:first-child{border-left:3px solid #C81E2E}.door-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.door-card{border-top:3px solid #4A7AB8}.topic-cards{display:grid;grid-template-columns:1fr 1fr;gap:14px}.strip-layout{display:grid;grid-template-columns:170px 1fr;gap:20px}.strip-labels{display:flex;flex-direction:column;gap:10px}.strip-labels span{background:#D6E4F4;padding:10px;border-radius:8px;font-weight:700}.status-list{display:grid;gap:12px}.status-row{display:grid;grid-template-columns:140px 1fr auto;gap:12px;align-items:center;background:#F7FAFD;border:1px solid rgba(20,24,32,.12);padding:14px;border-radius:8px}.status{font-weight:800;color:#C81E2E}.wrap-app{display:grid;grid-template-columns:1fr 240px;gap:30px;align-items:center}.app-art{width:240px;height:320px}.app-art img{height:100%;width:100%}.simple-list{display:grid;gap:12px}.simple-list article{padding:16px 0;border-bottom:1px solid rgba(20,24,32,.12)}.feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.feature-list div{background:#E4EEF8;border-radius:8px;padding:16px}.page-head{padding:36px 0 24px}.related{margin-top:34px;padding-top:22px;border-top:1px solid rgba(20,24,32,.12)}.related-links{display:flex;gap:10px;flex-wrap:wrap}.related-links a{background:#F7FAFD;border:1px solid rgba(200,30,46,.45);padding:10px 14px;border-radius:8px;min-height:44px;display:flex;align-items:center}.faq-list{display:grid;gap:12px}.faq-item{background:#F7FAFD;border:1px solid rgba(20,24,32,.12);border-radius:8px;padding:18px}.faq-item h2{font-size:16px;margin:0 0 8px}.banner-slot{width:100%;height:200px;margin:16px 0 24px}.center-stack{max-width:760px;margin:auto;display:grid;gap:16px}.timeline{border-left:2px solid #4A7AB8;padding-left:22px;display:grid;gap:18px}.timeline section{position:relative}.timeline section:before{content:"";position:absolute;width:10px;height:10px;border-radius:50%;background:#C81E2E;left:-28px;top:8px}.checklist{display:grid;gap:12px}.checklist li{background:#F7FAFD;border:1px solid rgba(20,24,32,.12);padding:13px 15px;border-radius:8px;list-style:none}.site-footer{background:#1A2A44;color:#EEF4FB;border-top:1px solid #C81E2E;padding:28px max(16px,calc((100% - 960px)/2)) 72px;font-size:13px}.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:20px}.footer-brand img{height:24px;width:auto}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.footer-grid h2{font-size:14px;color:#F7FAFD;margin:0 0 8px}.footer-grid a{display:block;color:#EEF4FB;margin:5px 0}.overlay{position:fixed;inset:0;background:rgba(20,24,32,.42);z-index:49;opacity:0;visibility:hidden;pointer-events:none;transition:.22s}.overlay.open{opacity:1;visibility:visible;pointer-events:auto}.side-menu{position:fixed;left:0;top:0;bottom:0;width:300px;max-height:70vh;margin-top:74px;background:#F7FAFD;z-index:50;transform:translateX(-105%);visibility:hidden;pointer-events:none;transition:.22s;overflow:auto;border-radius:0 8px 8px 0;box-shadow:0 12px 28px rgba(26,42,68,.18)}.side-menu.open{transform:none;visibility:visible;pointer-events:auto}.side-head{position:sticky;top:0;background:#F7FAFD;padding:14px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid rgba(20,24,32,.12)}.side-head button,.search-head button{min-height:44px;border:1px solid #C81E2E;background:#F7FAFD;border-radius:8px;padding:0 12px}.side-brand{display:flex;align-items:center;gap:8px}.side-brand img{height:24px;width:auto}.menu-group{padding:10px 14px}.menu-group h2{font-size:13px;color:#6A7A8E;margin:8px 0}.menu-group a{display:block;padding:8px 0;border-bottom:1px solid rgba(20,24,32,.08)}.menu-group span{display:block;color:#6A7A8E;font-size:12px}.search-panel{position:fixed;top:74px;left:0;right:0;z-index:51;visibility:hidden;pointer-events:none;opacity:0;transition:.22s}.search-panel.open{visibility:visible;pointer-events:auto;opacity:1}.search-card{max-width:960px;margin:0 auto;background:#F7FAFD;padding:18px;border-radius:0 0 8px 8px;box-shadow:0 12px 28px rgba(26,42,68,.12)}.search-head{display:flex;justify-content:space-between;align-items:center}.search-head h2{font-size:20px;margin:0}.search-links{display:flex;gap:10px;flex-wrap:wrap}.search-links a{min-height:44px;display:flex;align-items:center;border:1px solid rgba(20,24,32,.12);padding:0 14px;border-radius:8px}.mobile-nav{display:none}.policy-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.image-and-copy{display:grid;grid-template-columns:320px 1fr;gap:24px;align-items:start}.image-and-copy .media-slot{height:168px}.three-phase{display:grid;grid-template-columns:150px 1fr;gap:18px}.three-phase nav{display:grid;gap:10px}.three-phase nav a{background:#D6E4F4;padding:10px;border-radius:8px}.service-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.service-card{background:#F7FAFD;border-left:3px solid #C81E2E;padding:16px;border-radius:8px;box-shadow:0 12px 28px rgba(26,42,68,.06)}
@media(max-width:700px){.quick-nav{display:none}.site-main{padding:92px 16px 68px}.ice-cut,.two-cold,.door-grid,.topic-cards,.strip-layout,.wrap-app,.feature-list,.policy-grid,.image-and-copy,.three-phase,.service-grid{grid-template-columns:1fr}.ice-shape{width:100%;max-width:280px}.app-art{width:240px;max-width:100%;margin:auto}.footer-grid{grid-template-columns:1fr 1fr}.side-menu{width:86%;max-height:calc(100vh - 74px);margin-top:74px}.search-panel{top:0;bottom:0;background:#1A2A44}.search-card{min-height:100%;background:#1A2A44;color:#F7FAFD;border-radius:0;padding:24px 16px}.search-head button{background:#1A2A44;color:#F7FAFD;border-color:#F7FAFD}.search-links a{border-color:rgba(247,250,253,.4)}.mobile-nav{position:fixed;z-index:45;left:0;right:0;bottom:0;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#F7FAFD;border-top:1px solid rgba(20,24,32,.12);display:grid;grid-template-columns:repeat(4,1fr)}.mobile-nav a{display:flex;align-items:center;justify-content:center;min-height:48px;font-size:13px}.mobile-nav .is-current{background:#C81E2E;color:#F7FAFD}.site-footer{padding-bottom:90px}.brand-row{padding:0 16px}.top-strip{padding:0 16px}.mini-app,.menu-button{padding:0 10px}.status-row{grid-template-columns:1fr}.footer-grid{gap:12px}.hero{padding-top:28px}}