*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#F4FAFC;color:#24505A;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.75;overflow-x:hidden}body.is-locked{overflow:hidden}a{color:inherit;text-decoration:none}button{font:inherit}img{max-width:100%;display:block}.site-header{position:fixed;inset:0 0 auto 0;z-index:50}.mist-line{height:20px;background:#0E3A46;color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 max(16px,calc((100vw - 1180px)/2));font-size:12px}.mist-brand{font-weight:700;letter-spacing:.04em}.text-button{border:0;background:transparent;color:#fff;padding:0 4px;cursor:pointer}.dock-bar{height:62px;background:#fff;border-bottom:1px solid rgba(26,127,143,.16);display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:0 max(16px,calc((100vw - 1180px)/2));gap:16px}.brand-lockup{justify-self:start;min-width:120px}.site-logo{height:36px;width:auto;object-fit:contain}.brand-text{font-size:20px;color:#0E3A46;font-weight:800}.drawer-trigger,.app-link,.button-primary,.button-secondary{min-height:44px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;padding:0 18px;font-weight:700}.drawer-trigger{border:1px solid rgba(26,127,143,.28);background:#E7F3F6;color:#0F5B68;cursor:pointer}.app-link{justify-self:end;background:linear-gradient(135deg,#2BB3C4 0%,#1A7F8F 55%,#0F5B68 100%);color:#fff}.shell-tabs{height:42px;background:#D7EEF2;border-bottom:1px solid rgba(26,127,143,.16)}.shell-tabs-inner{max-width:1180px;margin:auto;height:100%;display:flex;align-items:center;gap:8px;padding:0 16px}.shell-tabs a{padding:6px 11px;border-radius:8px;color:#0E3A46;font-size:14px}.shell-tabs a.is-current{background:#1A7F8F;color:#fff}.site-main{padding-top:124px}.wrap{max-width:1180px;margin:0 auto;padding:0 16px}.section{padding:54px 0}.section.compact{padding:36px 0}.eyebrow{color:#1A7F8F;font-weight:800;font-size:13px;letter-spacing:.08em}.hero-title,h1{color:#0E3A46;font-size:clamp(28px,4vw,32px);line-height:1.25;margin:8px 0 16px}.lead{font-size:17px;max-width:760px}.hero-banner{max-width:1180px;margin:0 auto;background:#D7EEF2}.hero-banner img{width:100%;height:auto;object-fit:contain;object-position:center}.hero-fallback{min-height:220px;display:flex;align-items:center;justify-content:center;color:#0E3A46;font-size:clamp(28px,5vw,48px);font-weight:800}.hero-copy{padding:28px 16px 0;max-width:1180px;margin:auto}.button-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}.button-primary{background:linear-gradient(135deg,#2BB3C4 0%,#1A7F8F 55%,#0F5B68 100%);color:#fff}.button-secondary{background:#fff;color:#0F5B68;border:1px solid rgba(26,127,143,.25)}.step-grid,.card-grid,.four-grid,.three-grid{display:grid;gap:18px}.step-grid,.four-grid{grid-template-columns:repeat(4,1fr)}.three-grid{grid-template-columns:repeat(3,1fr)}.step-item,.card,.info-panel,.article-panel,.faq-item{background:#fff;border:1px solid rgba(26,127,143,.16);box-shadow:0 14px 34px rgba(14,58,70,.08);border-radius:16px;padding:22px}.step-item.accent{background:#E7F3F6}.step-number{display:inline-flex;width:34px;height:34px;align-items:center;justify-content:center;border-radius:8px;background:#1A7F8F;color:#fff;font-weight:800}.step-item:nth-child(even) .step-number{background:#0F5B68}.section-title{font-size:24px;color:#0E3A46;margin:0 0 12px}.section-intro{max-width:780px;margin-bottom:24px}.media-card{background:#fff;border:1px solid rgba(26,127,143,.16);border-radius:16px;padding:14px;box-shadow:0 14px 34px rgba(14,58,70,.08)}.media-card img,.content-media img{width:100%;height:210px;object-fit:contain;object-position:center;background:#F4FAFC;border-radius:12px}.media-card h3,.card h3{color:#0E3A46;margin:14px 0 8px}.media-card p,.card p{margin:0}.content-media{background:#fff;border:1px solid rgba(26,127,143,.16);border-radius:16px;padding:14px}.content-media.tall img{height:420px}.split{display:grid;grid-template-columns:1.15fr .85fr;gap:26px;align-items:start}.number-list{display:grid;gap:12px}.number-row{display:grid;grid-template-columns:54px 1fr;gap:16px;background:#fff;border:1px solid rgba(26,127,143,.16);border-radius:14px;padding:18px}.number-row strong{font-size:24px;color:#1A7F8F}.list-links{display:grid;gap:10px}.list-links a{background:#fff;border:1px solid rgba(26,127,143,.16);border-radius:12px;padding:14px 16px;color:#0F5B68;font-weight:700}.page-hero{padding:58px 0 20px}.prose{max-width:850px}.prose h2{color:#0E3A46;font-size:22px;margin-top:34px}.prose p{margin:0 0 16px}.note-box{background:#E7F3F6;border-left:4px solid #1A7F8F;padding:18px 20px;border-radius:12px}.gallery-row{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.gallery-tile{background:#fff;padding:10px;border:1px solid rgba(26,127,143,.16);border-radius:14px}.gallery-tile img{width:100%;height:170px;object-fit:contain;background:#F4FAFC;border-radius:10px}.site-footer{background:#0E3A46;color:#D4E8EC;padding:54px 0 calc(30px + env(safe-area-inset-bottom))}.footer-inner{max-width:1180px;margin:auto;padding:0 16px}.footer-brand{max-width:500px}.footer-logo{height:34px;width:auto;object-fit:contain;margin-bottom:12px}.footer-brand strong{display:block;color:#fff;font-size:22px}.footer-brand span{font-size:13px;letter-spacing:.14em}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:34px}.footer-grid h2{font-size:15px;color:#fff}.footer-grid a{display:block;padding:4px 0;color:#D4E8EC}.copyright{border-top:1px solid rgba(255,255,255,.14);padding-top:20px;margin-top:28px;font-size:13px}.overlay{position:fixed;inset:0;background:rgba(14,58,70,.45);z-index:70;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.overlay.is-active{opacity:1;visibility:visible;pointer-events:auto}.tide-drawer{position:fixed;z-index:80;top:0;right:0;width:min(410px,86vw);height:100dvh;background:#F4FAFC;padding:18px;overflow-y:auto;transform:translateX(104%);visibility:hidden;pointer-events:none;transition:.28s}.tide-drawer.is-open{transform:none;visibility:visible;pointer-events:auto}.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;position:sticky;top:-18px;background:#F4FAFC;padding:16px 0 12px;z-index:2}.drawer-brand{display:flex;align-items:center;gap:10px;color:#0E3A46}.drawer-brand img{height:30px;width:auto;object-fit:contain}.icon-button{min-height:44px;border:1px solid rgba(26,127,143,.24);background:#fff;color:#0F5B68;border-radius:10px;padding:0 14px;cursor:pointer}.wave-card{background:#fff;border:1px solid rgba(26,127,143,.16);border-radius:18px;padding:18px;margin:0 0 14px}.wave-card h2{margin:0 0 10px;color:#0E3A46;font-size:16px}.wave-card a{display:block;padding:10px 0;border-top:1px solid rgba(26,127,143,.1)}.wave-card a:first-of-type{border-top:0}.wave-card strong,.wave-card span{display:block}.wave-card strong{color:#0F5B68}.wave-card span{font-size:13px;color:#4A7380}.search-layer{position:fixed;z-index:79;top:82px;left:0;right:0;visibility:hidden;pointer-events:none;transform:translateY(-20px);opacity:0;transition:.2s}.search-layer.is-open{visibility:visible;pointer-events:auto;transform:none;opacity:1}.search-card{max-width:760px;margin:0 auto;background:#fff;border:1px solid rgba(26,127,143,.18);box-shadow:0 14px 34px rgba(14,58,70,.13);border-radius:0 0 16px 16px;padding:20px}.search-top{display:flex;justify-content:space-between;align-items:center;gap:16px;color:#0E3A46}.search-look{margin:18px 0;background:#E7F3F6;border-radius:12px;padding:16px;color:#4A7380}.search-presets{display:flex;flex-wrap:wrap;gap:8px}.search-presets a{background:#F4FAFC;color:#0F5B68;border:1px solid rgba(26,127,143,.16);border-radius:9px;padding:10px 13px}.mobile-bottom{display:none}.drawer-trigger:hover,.app-link:hover,.button-primary:hover,.button-secondary:hover,.shell-tabs a:hover,.list-links a:hover{filter:brightness(.97)}a:focus-visible,button:focus-visible{outline:3px solid #2BB3C4;outline-offset:3px}@media(max-width:900px){.step-grid,.four-grid{grid-template-columns:repeat(2,1fr)}.three-grid{grid-template-columns:1fr}.split{grid-template-columns:1fr}.gallery-row{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:680px){.shell-tabs{display:none}.site-main{padding-top:82px;padding-bottom:64px}.dock-bar{grid-template-columns:minmax(0,1fr) auto auto;padding:0 16px;gap:8px}.brand-lockup{min-width:0}.site-logo{max-width:120px;height:32px}.drawer-trigger,.app-link{padding:0 10px;min-width:44px}.step-grid,.four-grid,.gallery-row{grid-template-columns:1fr}.search-layer{top:82px;padding:0 10px}.search-card{max-width:none;background:#E7F3F6;border-radius:0 0 14px 14px}.mobile-bottom{position:fixed;display:grid;grid-template-columns:repeat(5,1fr);left:0;right:0;bottom:0;height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid rgba(26,127,143,.18);z-index:60}.mobile-bottom a{display:flex;align-items:center;justify-content:center;font-size:13px;color:#0E3A46}.mobile-bottom a.is-current{background:#1A7F8F;color:#fff}.site-footer{padding-bottom:calc(72px + env(safe-area-inset-bottom))}.section{padding:40px 0}.hero-copy{padding-top:22px}.hero-fallback{min-height:170px}.content-media.tall img{height:360px}}