:root{--mist:#F4FAFC;--white:#FFFFFF;--soft:#E7F3F6;--title:#0E3A46;--text:#24505A;--muted:#4A7380;--quiet:#7A9AA4;--sea:#1A7F8F;--bright:#2BB3C4;--deep:#0F5B68;--pale:#D7EEF2;--border:rgba(26,127,143,.16);--shadow:0 14px 34px rgba(14,58,70,.08);--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--mist);color:var(--text);font:16px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;overflow-x:hidden}body.no-scroll{overflow:hidden}
a{color:var(--deep);text-decoration:none}a:hover{color:var(--sea)}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(43,179,196,.35);outline-offset:3px}button,input{font:inherit}button{cursor:pointer}img{display:block;max-width:100%;height:auto}
h1,h2,h3{color:var(--title);line-height:1.3;margin-top:0}h1{font-size:clamp(28px,4vw,32px);margin-bottom:14px}h2{font-size:clamp(22px,3vw,26px)}h3{font-size:18px}p{margin:0 0 1em}
.skip-link{position:fixed;left:16px;top:-80px;z-index:500;background:var(--deep);color:#fff;padding:10px 14px;border-radius:8px}.skip-link:focus{top:8px}
.fog-line{position:fixed;inset:0 0 auto 0;height:20px;background:var(--deep);color:#fff;z-index:210}.fog-inner{max-width:var(--max);height:20px;margin:auto;padding:0 16px;display:flex;align-items:center;justify-content:space-between;font-size:11px;letter-spacing:.05em}.icon-text-button{min-height:20px;padding:0 4px;border:0;background:transparent;color:#fff;font-size:11px;position:relative}.icon-text-button::after{content:"";position:absolute;inset:-12px -10px}
.dock-bar{position:fixed;top:20px;left:0;right:0;height:62px;background:#fff;border-bottom:1px solid var(--border);z-index:205}.dock-inner{max-width:var(--max);height:100%;margin:auto;padding:0 16px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px}
.brand-link{justify-self:start;min-height:44px;display:flex;align-items:center}.brand-logo{height:34px;max-width:190px;object-fit:contain;object-position:left center}.brand-fallback{font-size:22px;font-weight:800;color:var(--title);letter-spacing:.06em}
.drawer-button,.app-link,.close-button{min-height:44px;border:1px solid var(--border);border-radius:10px;background:#fff;color:var(--deep);display:inline-flex;align-items:center;justify-content:center;padding:0 16px;font-weight:700}.drawer-button{justify-self:center}.app-link{justify-self:end;background:linear-gradient(135deg,#2BB3C4 0%,#1A7F8F 55%,#0F5B68 100%);color:#fff;border-color:transparent}.app-link:hover{color:#fff;filter:brightness(.97)}
.shell-tabs{position:fixed;top:82px;left:0;right:0;height:42px;background:var(--pale);border-bottom:1px solid var(--border);z-index:200}.shell-inner{max-width:var(--max);height:100%;margin:auto;padding:0 16px;display:flex;align-items:center;gap:8px}.shell-inner a{padding:5px 10px;border-radius:7px;font-size:14px;color:var(--deep)}.shell-inner a.is-active{background:var(--sea);color:#fff}
.site-main{max-width:var(--max);margin:0 auto;padding:152px 16px 70px}.page-hero,.content-section,.feature-card,.legal-panel,.faq-item,.notice-box{background:#fff;border:1px solid var(--border);box-shadow:var(--shadow);border-radius:16px}.page-hero{padding:32px;margin-bottom:22px}.eyebrow{display:inline-block;color:var(--sea);font-weight:800;font-size:13px;letter-spacing:.12em;margin-bottom:8px}.lead{font-size:17px;color:var(--muted);max-width:850px}
.hero-actions,.inline-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.primary-button,.secondary-button,.text-button{min-height:44px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;padding:0 18px;font-weight:800}.primary-button{background:linear-gradient(135deg,#2BB3C4 0%,#1A7F8F 55%,#0F5B68 100%);color:#fff}.primary-button:hover{color:#fff}.secondary-button{background:#fff;border:1px solid var(--border);color:var(--deep)}.text-button{background:var(--pale);color:var(--deep);padding:0 14px}
.content-section{padding:28px;margin:0 0 22px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:18px}.section-head p{margin:0;color:var(--muted);max-width:650px}
.grid-2,.grid-3,.grid-4,.pebble-grid,.gallery-grid,.step-grid,.info-grid{display:grid;gap:16px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4,.pebble-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
.feature-card,.legal-panel{padding:20px;box-shadow:none}.feature-card p:last-child,.legal-panel p:last-child{margin-bottom:0}.card-number{font-weight:900;color:var(--bright);font-size:13px;letter-spacing:.08em}.color-chip{display:inline-flex;align-items:center;min-height:30px;padding:3px 9px;border-radius:7px;color:#fff;background:var(--bright);font-size:13px;font-weight:800}.color-chip.deep{background:var(--deep)}
.image-slot{display:flex;align-items:center;justify-content:center;min-height:180px;background:var(--pale);border:1px solid var(--border);border-radius:14px;overflow:hidden;margin-bottom:16px}.image-slot img,.column-image img{width:100%;height:100%;max-height:240px;object-fit:contain;object-position:center;background:#fff}.image-fallback{display:flex;align-items:center;justify-content:center;min-height:180px;width:100%;background:linear-gradient(145deg,var(--pale),#fff);border:1px dashed var(--border);border-radius:14px;color:var(--deep);font-weight:800;text-align:center;padding:20px}
.hero-media{min-height:220px;max-height:300px;margin-bottom:18px;display:flex;align-items:center;justify-content:center;background:var(--pale);border-radius:14px;overflow:hidden}.hero-media img{width:100%;max-height:300px;object-fit:contain;object-position:center;background:#fff}.hero-media.image-fallback{min-height:220px}
.column-image{display:flex;align-items:center;justify-content:center;background:var(--pale);border-radius:16px;overflow:hidden;min-height:210px}.column-image.tall img{max-height:420px;width:auto}.two-column{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(280px,.85fr);gap:22px;align-items:center}
.stairway{display:grid;gap:12px}.step-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.step-item{background:#fff;border:1px solid var(--border);border-radius:14px;padding:16px}.step-item:nth-child(even) .color-chip{background:var(--deep)}.step-item p{font-size:14px;margin:8px 0 10px;color:var(--muted)}
.number-list{counter-reset:hj;display:grid;gap:12px}.number-entry{counter-increment:hj;display:grid;grid-template-columns:56px 1fr;gap:14px;padding:15px;border-top:1px solid var(--border)}.number-entry::before{content:"0" counter(hj);font-size:20px;font-weight:900;color:var(--sea)}.number-entry h3{margin:0 0 6px}.number-entry p{margin:0;color:var(--muted)}
.album-list{display:grid;gap:10px}.album-row{display:grid;grid-template-columns:120px 1fr;gap:16px;padding:16px;background:var(--soft);border-radius:12px}.album-row strong{color:var(--title)}
.gallery-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.gallery-frame{background:#fff;border:1px solid var(--border);border-radius:14px;overflow:hidden}.gallery-frame .image-slot{border:0;border-radius:0;margin:0;min-height:190px}.gallery-frame p{padding:14px 16px;margin:0}
.path-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.path-list a{display:block;padding:20px;background:var(--soft);border-radius:14px}.path-list b{display:block;color:var(--title);margin-bottom:6px}.path-list span{display:block;color:var(--muted);font-size:14px}
.prose p{max-width:850px}.prose h2{margin-top:26px}.prose h3{margin-top:20px}.prose ul,.prose ol{padding-left:1.3em}.prose li{margin:.45em 0}.quote-note{border-left:4px solid var(--bright);padding:13px 16px;background:var(--soft);border-radius:0 12px 12px 0;margin:18px 0}
.index-list{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}.index-list a{display:block;background:var(--soft);padding:14px;border-radius:12px;min-height:90px}.index-list b{display:block;color:var(--title)}.index-list span{display:block;font-size:13px;color:var(--muted);margin-top:4px}
.chapter{padding:20px 0;border-bottom:1px solid var(--border)}.chapter:last-child{border-bottom:0}.timeline{display:grid;gap:14px}.timeline article{padding-left:20px;border-left:3px solid var(--pale)}.timeline h2{font-size:20px;margin-bottom:8px}.notice-box{padding:18px 20px;margin:18px 0;background:var(--soft);box-shadow:none}
.faq-list{display:grid;gap:14px}.faq-item{padding:20px;box-shadow:none}.faq-item h2{font-size:18px;margin-bottom:8px}.faq-item p{margin:0}
.site-footer{background:var(--title);color:#D4E8EC;padding:48px 16px 90px}.footer-inner{max-width:var(--max);margin:auto}.footer-brand{display:flex;justify-content:space-between;gap:30px;align-items:flex-start;padding-bottom:26px;border-bottom:1px solid rgba(255,255,255,.12)}.footer-brand p{max-width:600px;margin:0;color:#D4E8EC}.footer-brand-link{display:flex;align-items:center;gap:12px;color:#fff}.footer-brand-link:hover{color:#fff}.footer-logo{height:32px;max-width:170px;object-fit:contain}.footer-brand-link span{display:grid}.footer-brand-link small{color:#9FC3CB;font-size:11px;letter-spacing:.15em}
.footer-groups{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;padding:28px 0}.footer-groups h2{color:#fff;font-size:15px}.footer-groups a{display:block;color:#D4E8EC;padding:3px 0}.footer-groups a:hover{color:#fff}.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.12);padding-top:18px;font-size:13px;color:#9FC3CB}.footer-bottom a{color:#D4E8EC}
.site-overlay{position:fixed;inset:0;background:rgba(7,37,44,.45);z-index:300;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.site-overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}
.tide-drawer{position:fixed;right:0;top:0;bottom:0;width:min(410px,86vw);background:var(--mist);z-index:320;transform:translateX(102%);visibility:hidden;pointer-events:none;transition:transform .24s ease,visibility .24s;overflow:auto;box-shadow:-18px 0 40px rgba(14,58,70,.12)}.tide-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{position:sticky;top:0;background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px;z-index:2}.drawer-brand{display:flex;align-items:center;gap:10px;font-weight:900;color:var(--title)}.drawer-brand img{height:30px;max-width:150px;object-fit:contain}.wave-groups{padding:16px;display:grid;gap:14px}.wave-card{background:#fff;border:1px solid var(--border);border-radius:16px;padding:14px}.wave-card h2{font-size:15px;margin:0 0 8px;color:var(--sea)}.wave-card a{display:grid;grid-template-columns:100px 1fr;gap:10px;padding:9px 6px;border-top:1px solid var(--border)}.wave-card a:first-of-type{border-top:0}.wave-card b{color:var(--title)}.wave-card span{font-size:12px;color:var(--muted);line-height:1.55}
.search-layer{position:fixed;top:82px;left:0;right:0;z-index:330;padding:12px 16px;visibility:hidden;opacity:0;pointer-events:none;transform:translateY(-10px);transition:.2s}.search-layer.is-open{visibility:visible;opacity:1;pointer-events:auto;transform:none}.search-card{max-width:860px;margin:auto;background:#fff;border:1px solid var(--border);border-radius:16px;padding:20px;box-shadow:var(--shadow)}.search-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.search-head h2{margin-bottom:8px}.search-look{display:grid;gap:7px;color:var(--muted);font-size:13px}.search-look input{width:100%;min-height:46px;border:1px solid var(--border);border-radius:10px;padding:0 14px;color:var(--text);background:var(--mist)}.preset-links{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}.preset-links a{background:var(--pale);padding:8px 12px;border-radius:8px}.search-card>p{font-size:13px;color:var(--muted);margin:0}
.mobile-bottom{display:none}.small-note{font-size:13px;color:var(--quiet)}.app-visual{display:flex;align-items:center;justify-content:flex-start;gap:18px;margin-top:18px}.app-icon{width:64px;height:64px;object-fit:contain}
.table-like{display:grid;gap:1px;background:var(--border);border:1px solid var(--border);border-radius:14px;overflow:hidden}.table-like>div{display:grid;grid-template-columns:180px 1fr;gap:18px;background:#fff;padding:14px 16px}.table-like strong{color:var(--title)}.tag-row{display:flex;flex-wrap:wrap;gap:8px}.tag-row span{background:var(--pale);color:var(--deep);padding:5px 9px;border-radius:7px;font-size:13px}
@media(max-width:900px){.grid-4,.pebble-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3,.path-list{grid-template-columns:1fr}.two-column{grid-template-columns:1fr}.step-row{grid-template-columns:repeat(2,minmax(0,1fr))}.index-list{grid-template-columns:repeat(3,minmax(0,1fr))}.footer-groups{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:680px){body{padding-bottom:calc(50px + env(safe-area-inset-bottom))}.fog-inner,.dock-inner,.site-main{padding-left:16px;padding-right:16px}.shell-tabs{display:none}.dock-inner{grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);gap:8px}.brand-logo{height:30px;max-width:125px}.brand-fallback{font-size:18px}.drawer-button,.app-link{padding:0 10px;min-width:44px;font-size:13px}.site-main{padding-top:108px;padding-bottom:36px}.page-hero,.content-section{padding:20px;border-radius:14px}.grid-2,.grid-4,.pebble-grid,.gallery-grid{grid-template-columns:1fr}.step-row{grid-template-columns:1fr}.index-list{grid-template-columns:repeat(2,minmax(0,1fr))}.album-row{grid-template-columns:1fr}.footer-brand{display:grid}.footer-groups{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-bottom{display:grid}.site-footer{padding-bottom:calc(86px + env(safe-area-inset-bottom))}.mobile-bottom{position:fixed;display:grid;grid-template-columns:repeat(5,1fr);left:0;right:0;bottom:0;min-height:50px;padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid var(--border);z-index:240}.mobile-bottom a{min-height:50px;display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--deep)}.mobile-bottom a.is-active{background:var(--sea);color:#fff}.search-layer{top:82px;padding:8px}.search-card{background:var(--pale);border-radius:12px}.search-look input{background:#fff}.wave-card a{grid-template-columns:88px 1fr}.table-like>div{grid-template-columns:1fr;gap:4px}}
@media(max-width:390px){.dock-inner{gap:5px}.brand-logo{max-width:105px}.drawer-button,.app-link{padding:0 7px;font-size:12px}.index-list{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}