*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#F4FAFC;color:#24505A;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;line-height:1.75;overflow-x:hidden}a{color:inherit;text-decoration:none}img{display:block;max-width:100%;height:auto}button,input{font:inherit}button{cursor:pointer}.shell-wide{width:min(1180px,calc(100% - 32px));margin:0 auto}.site-top{position:fixed;left:0;right:0;top:0;z-index:80}.fog-line{height:20px;background:#0E3A46;color:#fff;font-size:12px}.fog-inner{height:20px;display:flex;align-items:center;justify-content:space-between}.fog-brand{letter-spacing:.06em}.fog-search{border:0;background:transparent;color:#fff;min-width:44px;height:20px;padding:0 6px}.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:18px}.brand-lockup{justify-self:start;display:flex;min-height:44px;align-items:center}.brand-logo{height:34px;width:auto;max-width:220px;object-fit:contain}.brand-text{font-weight:800;font-size:20px;color:#0E3A46}.drawer-trigger,.app-link,.btn-primary,.btn-secondary{min-height:44px;border-radius:12px;padding:10px 18px;display:inline-flex;align-items:center;justify-content:center;font-weight:700}.drawer-trigger{border:1px solid rgba(26,127,143,.22);background:#E7F3F6;color:#0E3A46}.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{height:42px;display:flex;align-items:center;gap:8px;overflow:hidden}.shell-tabs a{height:30px;display:inline-flex;align-items:center;padding:0 11px;border-radius:8px;color:#0E3A46;font-size:14px}.shell-tabs a:hover,.shell-tabs a:focus-visible{background:#fff}.shell-tabs a.is-current{background:#1A7F8F;color:#fff}.site-main{padding-top:146px;padding-bottom:40px}.content-shell{width:min(1180px,calc(100% - 32px));margin:0 auto}.page-head{padding:34px 0 24px}.eyebrow{font-size:13px;font-weight:800;letter-spacing:.12em;color:#1A7F8F}.page-head h1,.hero-copy h1{margin:8px 0 12px;color:#0E3A46;font-size:clamp(28px,4vw,32px);line-height:1.25}.lead{max-width:860px;font-size:17px;color:#4A7380}.section{margin:0 0 28px}.section-card,.article-card,.step-card,.note-card{background:#fff;border:1px solid rgba(26,127,143,.16);box-shadow:0 14px 34px rgba(14,58,70,.08);border-radius:16px;padding:24px}.section h2,.section-card h2,.article-card h2{margin:0 0 12px;color:#0E3A46;font-size:22px;line-height:1.35}.section h3,.section-card h3{color:#0F5B68;margin:0 0 8px;font-size:18px}.section p,.section-card p,.article-card p{margin:0 0 12px}.section p:last-child,.section-card p:last-child,.article-card p:last-child{margin-bottom:0}.muted{color:#7A9AA4}.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px}.btn-primary{background:linear-gradient(135deg,#2BB3C4 0%,#1A7F8F 55%,#0F5B68 100%);color:#fff}.btn-secondary{background:#fff;border:1px solid rgba(26,127,143,.22);color:#0E3A46}.btn-primary:hover,.btn-secondary:hover,.drawer-trigger:hover,.app-link:hover{transform:translateY(-1px)}a:focus-visible,button:focus-visible{outline:3px solid rgba(43,179,196,.45);outline-offset:3px}.hero-media,.media-slot{background:#D7EEF2;border:1px solid rgba(26,127,143,.16);border-radius:18px;display:flex;align-items:center;justify-content:center;overflow:hidden}.hero-media{min-height:180px;max-height:300px}.hero-media img{width:100%;height:100%;max-height:300px;object-fit:contain;object-position:center}.media-slot{min-height:180px}.media-slot img{width:100%;height:100%;max-height:240px;object-fit:contain;object-position:center}.portrait-slot img{max-height:420px;object-fit:contain}.fallback-title{padding:34px;color:#0E3A46;font-size:26px;font-weight:800;text-align:center}.hero-copy{padding:22px 0 8px}.hero-kicker{color:#1A7F8F;font-size:14px;font-weight:800}.step-level{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:12px}.step-card{box-shadow:none;padding:18px}.step-card:nth-child(odd){border-top:5px solid #2BB3C4}.step-card:nth-child(even){border-top:5px solid #0F5B68}.step-card a{font-weight:800;color:#0E3A46}.number-list{display:grid;gap:10px;margin-top:18px}.number-item{display:grid;grid-template-columns:48px 1fr;gap:14px;align-items:start;background:#E7F3F6;border-radius:14px;padding:16px}.number-item b{display:flex;width:44px;height:44px;align-items:center;justify-content:center;background:#1A7F8F;color:#fff;border-radius:10px}.number-item a{font-weight:800;color:#0F5B68}.pebble-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.pebble{background:#fff;border:1px solid rgba(26,127,143,.16);border-radius:18px;overflow:hidden;box-shadow:0 14px 34px rgba(14,58,70,.08)}.pebble .media-slot{border:0;border-radius:0;min-height:190px;background:#F4FAFC}.pebble-body{padding:18px}.pebble-body h3{margin:0 0 8px;color:#0E3A46}.pebble-body p{margin:0 0 12px}.pebble-body a{font-weight:800;color:#1A7F8F}.grid-2,.grid-3,.grid-4{display:grid;gap:16px}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.strip-list{display:grid;gap:10px}.strip-list article{background:#fff;border-left:5px solid #1A7F8F;border-radius:12px;padding:18px;border-top:1px solid rgba(26,127,143,.12);border-right:1px solid rgba(26,127,143,.12);border-bottom:1px solid rgba(26,127,143,.12)}.strip-list h3{margin:0 0 6px;color:#0E3A46}.gallery-row{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.gallery-tile{background:#fff;border-radius:16px;border:1px solid rgba(26,127,143,.16);overflow:hidden}.gallery-tile .media-slot{border:0;border-radius:0}.gallery-tile p{padding:14px;margin:0}.path-list{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.path-list a{background:#0E3A46;color:#fff;border-radius:14px;padding:18px;min-height:110px;display:flex;flex-direction:column;justify-content:center}.path-list span{color:#D4E8EC;font-weight:400;margin-top:4px}.faq-list{display:grid;gap:14px}.faq-item{background:#fff;border-radius:16px;border:1px solid rgba(26,127,143,.16);padding:20px}.faq-item h2{font-size:19px;margin:0 0 8px;color:#0E3A46}.faq-item p{margin:0}.aside-note{background:#E7F3F6;border-radius:14px;padding:18px;color:#0E3A46}.site-footer{background:#0E3A46;color:#D4E8EC;padding:38px 0 80px}.footer-grid{display:grid;grid-template-columns:1.8fr repeat(4,1fr);gap:24px}.footer-brand-line{display:flex;align-items:center;gap:12px}.footer-logo{height:32px;width:auto;object-fit:contain;filter:brightness(0) invert(1)}.footer-brand-line strong{display:block;color:#fff;font-size:19px}.footer-brand-line small{display:block;color:#D4E8EC;letter-spacing:.12em}.footer-brand p{font-size:14px;color:#B9D3D9}.footer-group h2{font-size:15px;color:#fff;margin:0 0 10px}.footer-group a{display:block;font-size:14px;padding:4px 0;color:#D4E8EC}.footer-group a:hover{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:18px;margin-top:24px;font-size:13px}.overlay{position:fixed;inset:0;background:rgba(14,58,70,.34);z-index:100;opacity:0;pointer-events:none;transition:opacity .2s ease}.overlay.is-active{opacity:1;pointer-events:auto}.tide-drawer{position:fixed;top:0;right:0;bottom:0;width:min(410px,86vw);background:#F4FAFC;z-index:110;transform:translateX(105%);transition:transform .25s ease;visibility:hidden;pointer-events:none;box-shadow:-20px 0 40px rgba(14,58,70,.16);overflow-y:auto}.tide-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{position:sticky;top:0;background:#fff;border-bottom:1px solid rgba(26,127,143,.16);display:flex;align-items:center;justify-content:space-between;padding:14px 16px;z-index:2}.drawer-brand{display:flex;align-items:center;gap:10px}.drawer-logo{height:30px;max-width:180px;object-fit:contain}.drawer-brand strong,.drawer-brand small{display:block}.drawer-brand strong{color:#0E3A46}.drawer-brand small{font-size:11px;color:#7A9AA4}.icon-close,.search-head button{min-width:44px;min-height:44px;border:1px solid rgba(26,127,143,.2);border-radius:10px;background:#fff;color:#0E3A46}.wave-stack{display:grid;gap:12px;padding:14px}.wave-card{background:#fff;border:1px solid rgba(26,127,143,.16);border-radius:18px;padding:14px;box-shadow:0 14px 34px rgba(14,58,70,.06)}.wave-card h2{font-size:15px;color:#1A7F8F;margin:0 0 6px}.wave-card a{display:grid;grid-template-columns:84px 1fr;gap:10px;padding:10px 8px;border-radius:10px}.wave-card a:hover{background:#E7F3F6}.wave-card b{color:#0E3A46}.wave-card span{font-size:13px;color:#4A7380}.search-layer{position:fixed;z-index:120;left:50%;top:86px;transform:translate(-50%,-12px);width:min(760px,calc(100% - 32px));background:#fff;border:1px solid rgba(26,127,143,.16);border-radius:0 0 18px 18px;box-shadow:0 20px 45px rgba(14,58,70,.14);padding:18px;opacity:0;visibility:hidden;pointer-events:none;transition:.2s ease}.search-layer.is-open{transform:translate(-50%,0);opacity:1;visibility:visible;pointer-events:auto}.search-head{display:flex;align-items:center;justify-content:space-between;color:#0E3A46}.search-box{display:flex;align-items:center;gap:8px;background:#E7F3F6;border-radius:12px;padding:12px 14px;margin:14px 0}.search-box input{width:100%;border:0;outline:0;background:transparent;color:#0E3A46}.search-shortcuts{display:flex;flex-wrap:wrap;gap:8px}.search-shortcuts a{background:#fff;border:1px solid rgba(26,127,143,.16);border-radius:10px;padding:10px 13px;color:#0E3A46}.ui-locked{overflow:hidden}.mobile-bottom{display:none}.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.tag-row span,.tag-row a{background:#D7EEF2;color:#0E3A46;border-radius:9px;padding:7px 10px;font-size:14px}.chapter-list{display:grid;gap:16px}.chapter{padding:22px;background:#fff;border:1px solid rgba(26,127,143,.16);border-radius:16px}.chapter h2{margin:0 0 10px;color:#0E3A46}.chapter .chapter-no{color:#1A7F8F;font-weight:800;letter-spacing:.1em}.timeline{display:grid;gap:12px}.timeline article{position:relative;padding:18px 18px 18px 54px;background:#fff;border-radius:16px;border:1px solid rgba(26,127,143,.16)}.timeline article:before{content:attr(data-step);position:absolute;left:14px;top:18px;width:28px;height:28px;border-radius:8px;display:grid;place-items:center;background:#1A7F8F;color:#fff;font-weight:800}.product-grid{display:grid;grid-template-columns:340px 1fr;gap:24px;align-items:start}.product-copy{background:#fff;border-radius:18px;border:1px solid rgba(26,127,143,.16);padding:24px}.policy-list{display:grid;gap:14px}.policy-list section{background:#fff;border:1px solid rgba(26,127,143,.16);border-radius:16px;padding:20px}.policy-list h2{margin:0 0 8px;font-size:20px;color:#0E3A46}.notice{padding:16px 18px;background:#D7EEF2;border-radius:14px;color:#0E3A46;border-left:5px solid #1A7F8F}.simple-links{display:flex;flex-wrap:wrap;gap:10px}.simple-links a{padding:10px 13px;background:#fff;border:1px solid rgba(26,127,143,.16);border-radius:10px;color:#0F5B68;font-weight:700}
@media (max-width:900px){.pebble-grid,.grid-4,.gallery-row{grid-template-columns:repeat(2,1fr)}.grid-3,.path-list{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}.footer-brand{grid-column:1/-1}.product-grid{grid-template-columns:1fr}.product-grid .media-slot{max-width:420px;margin:0 auto;width:100%}}
@media (max-width:680px){body{padding-bottom:calc(56px + env(safe-area-inset-bottom))}.shell-wide,.content-shell{width:calc(100% - 32px)}.shell-tabs{display:none}.site-main{padding-top:102px}.fog-line{height:20px}.dock-bar,.dock-inner{height:62px}.dock-inner{grid-template-columns:minmax(0,1fr) auto auto;gap:8px}.brand-logo{max-width:130px;height:30px}.brand-text{font-size:17px}.drawer-trigger,.app-link{padding:8px 10px;min-width:64px;min-height:44px;font-size:14px}.page-head{padding-top:22px}.step-level,.pebble-grid,.grid-2,.grid-3,.grid-4,.gallery-row,.path-list{grid-template-columns:1fr}.number-item{grid-template-columns:44px 1fr}.hero-media{min-height:140px}.section-card,.article-card,.step-card,.note-card{padding:18px}.search-layer{top:82px;width:calc(100% - 20px);background:#E7F3F6;border-radius:0 0 16px 16px}.wave-card a{grid-template-columns:76px 1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:20px}.footer-brand{grid-column:1/-1}.site-footer{padding-bottom:90px}.mobile-bottom{position:fixed;z-index:70;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,.16);display:grid;grid-template-columns:repeat(5,1fr);box-shadow:0 -8px 24px rgba(14,58,70,.06)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;font-size:13px;min-height:50px;color:#0E3A46}.mobile-bottom a.is-current{background:#1A7F8F;color:#fff}.tide-drawer{width:86vw}.overlay{z-index:100}.tide-drawer{z-index:110}.mobile-bottom{z-index:70}}

.app-icon-wrap{display:inline-flex!important;padding:4px!important;background:#fff!important}.app-icon-wrap img{width:56px;height:56px;object-fit:contain;object-position:center}
.fog-search{position:relative}.fog-search:after{content:"";position:absolute;inset:-12px -6px}
.pebble .media-slot{height:200px}.pebble .media-slot img{max-height:200px}