*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#F4FAFC;color:#24505A;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;line-height:1.75;overflow-x:hidden}body.locked{overflow:hidden}a{color:inherit;text-decoration:none}button{font:inherit}img{max-width:100%;display:block}.shell{width:min(1180px,calc(100% - 32px));margin:0 auto}.site-header{position:fixed;top:0;left:0;right:0;z-index:60}.mist-line{height:20px;background:#0F5B68;color:#fff;font-size:12px}.mist-inner{height:20px;display:flex;align-items:center;justify-content:space-between}.mist-brand{font-weight:700;letter-spacing:.04em}.icon-button,.search-open{height:20px;border:0;background:transparent;color:#fff;padding:0 2px;cursor:pointer}.dock-bar{height:62px;background:#fff;border-bottom:1px solid rgba(26,127,143,.16)}.dock-inner{height:62px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px}.brand-lockup{justify-self:start;min-width:44px;display:flex;align-items:center}.brand-logo{height:34px;width:auto;max-width:190px;object-fit:contain;object-position:left center}.brand-text{font-weight:800;color:#0E3A46;font-size:20px}.drawer-open,.app-link,.btn,.search-presets a{min-height:44px;border-radius:10px;border:1px solid rgba(26,127,143,.22);display:inline-flex;align-items:center;justify-content:center;padding:0 16px;cursor:pointer;transition:.2s}.drawer-open{justify-self:center;background:#fff;color:#0F5B68;font-weight:700}.app-link{justify-self:end;background:linear-gradient(135deg,#2BB3C4 0%,#1A7F8F 55%,#0F5B68 100%);color:#fff;font-weight:700;border:0}.shell-tabs{height:42px;background:#D7EEF2;border-bottom:1px solid rgba(26,127,143,.16)}.tabs-inner{height:42px;display:flex;align-items:center;gap:6px}.tabs-inner a{padding:5px 11px;border-radius:8px;color:#0F5B68;font-size:14px;font-weight:700}.tabs-inner a.active{background:#1A7F8F;color:#fff}main{padding-top:124px}.page-hero{padding:50px 0 24px}.page-hero .eyebrow,.eyebrow{font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:#1A7F8F;font-weight:800}.page-hero h1{margin:8px 0 12px;color:#0E3A46;font-size:clamp(28px,4vw,36px);line-height:1.25}.lead{font-size:17px;max-width:820px;color:#4A7380}.section{padding:28px 0}.section.alt{background:#E7F3F6}.section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:18px}.section-head h2{margin:0;color:#0E3A46;font-size:24px}.section-head p{margin:0;color:#7A9AA4}.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.card-grid.three{grid-template-columns:repeat(3,1fr)}.card-grid.two{grid-template-columns:repeat(2,1fr)}.card{background:#fff;border:1px solid rgba(26,127,143,.16);border-radius:16px;padding:20px;box-shadow:0 14px 34px rgba(14,58,70,.08)}.card h3{margin:0 0 8px;color:#0E3A46;font-size:19px}.card p{margin:0}.card a.more{display:inline-flex;margin-top:12px;color:#0F5B68;font-weight:800}.image-slot{min-height:190px;border-radius:16px;background:linear-gradient(180deg,#fff,#E7F3F6);border:1px solid rgba(26,127,143,.14);display:flex;align-items:center;justify-content:center;overflow:hidden}.image-slot img{width:100%;height:220px;object-fit:contain;object-position:center}.hero-image{min-height:220px;max-height:300px}.hero-image img{width:100%;max-height:300px;object-fit:contain}.app-visual img{max-height:420px;width:100%;object-fit:contain}.hero-copy{padding:24px 0 10px}.hero-copy h1{font-size:clamp(29px,4vw,40px);margin:6px 0;color:#0E3A46}.hero-copy p{max-width:850px;font-size:17px}.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}.btn.primary{background:linear-gradient(135deg,#2BB3C4 0%,#1A7F8F 55%,#0F5B68 100%);color:#fff;border:0;font-weight:800}.btn.secondary{background:#fff;color:#0F5B68;font-weight:800}.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:12px 0}.step-link{background:#fff;border:1px solid rgba(26,127,143,.16);border-left:5px solid #2BB3C4;padding:16px;border-radius:12px;min-height:112px}.step-link.deep{border-left-color:#0F5B68}.step-link strong{display:block;color:#0E3A46;margin-bottom:5px}.number-list{display:grid;gap:12px}.number-item{display:grid;grid-template-columns:60px 1fr;gap:16px;padding:16px 0;border-bottom:1px solid rgba(26,127,143,.14)}.number-item .num{font-size:28px;color:#1A7F8F;font-weight:800}.split{display:grid;grid-template-columns:1.05fr .95fr;gap:24px;align-items:center}.prose{max-width:860px}.prose p{margin:0 0 16px}.prose h2{color:#0E3A46;margin-top:32px}.prose h3{color:#0F5B68}.chapter{background:#fff;border:1px solid rgba(26,127,143,.16);border-radius:16px;padding:22px;margin:14px 0}.chapter h2,.chapter h3{margin-top:0;color:#0E3A46}.mini-list{display:grid;gap:10px}.mini-list a{background:#fff;border:1px solid rgba(26,127,143,.16);padding:14px 16px;border-radius:12px}.gallery-row{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.gallery-card{background:#fff;border-radius:14px;border:1px solid rgba(26,127,143,.16);overflow:hidden}.gallery-card .image-slot{border:0;border-radius:0;min-height:160px}.gallery-card .image-slot img{height:180px}.gallery-card div:last-child{padding:14px}.tag{display:inline-flex;align-items:center;min-height:28px;padding:2px 9px;border-radius:8px;background:#D7EEF2;color:#0E3A46;font-size:13px;font-weight:800}.notice{padding:18px 20px;border-left:4px solid #1A7F8F;background:#E7F3F6;border-radius:12px;color:#0E3A46}.faq-list{display:grid;gap:12px}.faq-item{background:#fff;border:1px solid rgba(26,127,143,.16);border-radius:14px;padding:18px}.faq-item h2{margin:0 0 8px;font-size:18px;color:#0E3A46}.site-footer{background:#0E3A46;color:#D4E8EC;padding:42px 0 calc(28px + env(safe-area-inset-bottom));margin-top:48px}.footer-grid{display:grid;grid-template-columns:1.2fr 2fr;gap:36px}.footer-brand-line{display:flex;align-items:center;gap:9px;color:#fff}.footer-brand-line em{font-style:normal;font-size:12px;letter-spacing:.16em}.footer-logo,.drawer-logo{height:32px;width:auto;max-width:150px;object-fit:contain}.footer-brand p{max-width:420px}.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.footer-links h2{font-size:15px;color:#fff;margin:0 0 10px}.footer-links a{display:block;margin:5px 0;color:#D4E8EC;font-size:14px}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;margin-top:28px;font-size:13px}.tide-drawer{position:fixed;right:0;top:0;bottom:0;width:min(410px,86vw);background:#F4FAFC;z-index:90;padding:18px;transform:translateX(104%);transition:transform .25s ease;visibility:hidden;pointer-events:none;overflow:auto;box-shadow:-20px 0 45px rgba(14,58,70,.15)}.tide-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:10px;position:sticky;top:-18px;background:#F4FAFC;padding:18px 0 12px;z-index:2}.drawer-title{display:flex;align-items:center;gap:8px;font-weight:800;color:#0E3A46}.drawer-close,.search-close{min-height:44px;border:1px solid rgba(26,127,143,.22);background:#fff;color:#0F5B68;border-radius:10px;padding:0 14px;cursor:pointer}.wave-cards{display:grid;gap:12px}.wave-card{background:#fff;border:1px solid rgba(26,127,143,.16);border-radius:16px;padding:14px}.wave-card h2{font-size:15px;color:#1A7F8F;margin:0 0 6px}.wave-card a{display:block;padding:9px 8px;border-radius:10px}.wave-card a:hover,.wave-card a:focus-visible{background:#E7F3F6}.wave-card strong{display:block;color:#0E3A46}.wave-card span{display:block;color:#4A7380;font-size:13px}.search-layer{position:fixed;left:0;right:0;top:82px;z-index:85;visibility:hidden;pointer-events:none;opacity:0;transform:translateY(-8px);transition:.2s}.search-layer.is-open{visibility:visible;pointer-events:auto;opacity:1;transform:none}.search-card{background:#fff;border:1px solid rgba(26,127,143,.18);border-radius:0 0 16px 16px;padding:22px;box-shadow:0 22px 45px rgba(14,58,70,.14)}.search-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.search-head h2{margin:4px 0;color:#0E3A46}.fake-search{min-height:54px;border:1px solid rgba(26,127,143,.2);background:#F4FAFC;border-radius:12px;padding:14px 16px;color:#7A9AA4;margin:16px 0}.search-presets{display:flex;flex-wrap:wrap;gap:8px}.search-presets a{background:#E7F3F6;color:#0E3A46;min-height:40px}.site-overlay{position:fixed;inset:0;background:rgba(14,58,70,.34);z-index:80;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.site-overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}.mobile-bottom{display:none}.btn:hover,.btn:focus-visible,.app-link:hover,.app-link:focus-visible,.drawer-open:hover,.drawer-open:focus-visible{transform:translateY(-1px);outline:2px solid rgba(43,179,196,.25);outline-offset:2px}a:focus-visible,button:focus-visible{outline:2px solid #2BB3C4;outline-offset:2px}
@media(max-width:900px){.card-grid{grid-template-columns:repeat(2,1fr)}.gallery-row{grid-template-columns:repeat(2,1fr)}.split{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-links{grid-template-columns:repeat(2,1fr)}}
@media(max-width:700px){.shell{width:min(100% - 32px,1180px)}.shell-tabs{display:none}main{padding-top:82px;padding-bottom:64px}.dock-inner{grid-template-columns:minmax(0,1fr) auto auto;gap:8px}.brand-logo{height:30px;max-width:122px}.brand-text{font-size:17px}.drawer-open,.app-link{min-height:44px;padding:0 11px;font-size:14px}.page-hero{padding-top:34px}.card-grid,.card-grid.three,.card-grid.two,.step-grid,.gallery-row{grid-template-columns:1fr}.image-slot img{height:210px}.footer-links{grid-template-columns:1fr 1fr}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:70;display:grid;grid-template-columns:repeat(5,1fr);min-height:50px;padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid rgba(26,127,143,.16)}.mobile-bottom a{min-height:50px;display:flex;align-items:center;justify-content:center;font-size:13px;color:#0F5B68}.mobile-bottom a.active{background:#1A7F8F;color:#fff;font-weight:800}.search-layer{top:82px}.search-card{width:calc(100% - 20px);background:#D7EEF2;border-radius:0 0 14px 14px}.section{padding:22px 0}.number-item{grid-template-columns:48px 1fr}.site-footer{padding-bottom:calc(84px + env(safe-area-inset-bottom))}}