:root{
  --mist:#F4FAFC;--white:#FFFFFF;--sea-soft:#E7F3F6;--title:#0E3A46;--text:#24505A;--sub:#4A7380;--muted:#7A9AA4;
  --brand:#1A7F8F;--bright:#2BB3C4;--deep:#0F5B68;--pale:#D7EEF2;--border:rgba(26,127,143,.16);--shadow:0 14px 34px rgba(14,58,70,.08);
  --max:1180px;--header-h:124px;
}
*{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.modal-open{overflow:hidden}
a{color:var(--deep);text-decoration:none}a:hover{color:var(--brand)}a:focus-visible,button:focus-visible{outline:3px solid rgba(43,179,196,.35);outline-offset:3px}button{font:inherit}.shell{width:min(calc(100% - 32px),var(--max));margin-inline:auto}.skip-link{position:fixed;left:16px;top:-80px;z-index:100;background:#fff;color:var(--deep);padding:10px 14px;border-radius:8px}.skip-link:focus{top:10px}.site-header{position:fixed;z-index:60;inset:0 0 auto 0}.mist-line{height:20px;background:var(--deep);color:#fff;font-size:12px}.wide-row{height:20px;display:flex;align-items:center;justify-content:space-between}.plain-btn{border:0;background:transparent;color:inherit;min-height:20px;cursor:pointer}.mist-search{padding:0 4px}.dock-bar{height:62px;background:#fff;border-bottom:1px solid var(--border)}.dock-row{height:62px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px}.brand-link{justify-self:start;display:flex;align-items:center;min-height:44px}.brand-logo{display:block;max-width:220px;height:34px;object-fit:contain;object-position:left center}.brand-text{font-size:22px;font-weight:800;color:var(--title);letter-spacing:.04em}.window-trigger,.app-link{min-height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px}.window-trigger{padding:0 18px;background:var(--sea-soft);border:1px solid var(--border);color:var(--deep);cursor:pointer;font-weight:700}.app-link{justify-self:end;padding:0 18px;background:linear-gradient(135deg,#2BB3C4 0%,#1A7F8F 55%,#0F5B68 100%);color:#fff;font-weight:700}.app-link:hover{color:#fff;filter:brightness(.98)}.shell-tag{height:42px;background:var(--pale);border-bottom:1px solid var(--border)}.shell-tag-row{height:42px;display:flex;align-items:center;gap:8px}.shell-tag a{display:flex;align-items:center;min-height:30px;padding:0 11px;border-radius:8px;color:var(--deep);font-size:14px}.shell-tag a.active{background:var(--brand);color:#fff}.site-main{padding-top:calc(var(--header-h) + 32px);min-height:70vh}.page-hero,.section-block,.info-strip,.faq-block{margin-bottom:28px}.page-hero{background:#fff;border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow);padding:28px}.eyebrow{margin:0 0 6px;color:var(--brand);font-weight:800;letter-spacing:.08em}.page-hero h1,.section-title{color:var(--title);line-height:1.25}.page-hero h1{font-size:clamp(28px,4vw,32px);margin:0 0 14px}.lead{font-size:17px;color:var(--sub);max-width:880px;margin:0}.hero-media,.section-media{display:flex;align-items:center;justify-content:center;background:var(--sea-soft);border:1px solid var(--border);border-radius:16px;overflow:hidden}.hero-media{min-height:180px;max-height:300px;margin-bottom:22px}.hero-media img{width:100%;height:auto;max-height:300px;object-fit:contain;object-position:center}.section-media{min-height:180px;max-height:240px}.section-media img{width:100%;height:100%;max-height:240px;object-fit:contain;object-position:center}.section-block{background:#fff;border:1px solid var(--border);border-radius:18px;padding:28px;box-shadow:var(--shadow)}.section-title{font-size:24px;margin:0 0 16px}.section-block p{margin:0 0 14px}.section-block p:last-child{margin-bottom:0}.btn-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}.btn-primary,.btn-secondary{min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:0 18px;border-radius:10px;font-weight:800}.btn-primary{background:linear-gradient(135deg,#2BB3C4 0%,#1A7F8F 55%,#0F5B68 100%);color:#fff}.btn-primary:hover{color:#fff}.btn-secondary{background:#fff;color:var(--deep);border:1px solid var(--border)}.step-grid,.pebble-grid,.four-grid,.three-grid,.gallery-grid,.faq-grid{display:grid;gap:16px}.step-grid,.four-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.pebble-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.three-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.gallery-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.step-card,.pebble-card,.mini-card,.number-card,.faq-item,.route-card,.note-row,.policy-card{border:1px solid var(--border);background:#fff;border-radius:14px;padding:18px}.step-card{border-top:4px solid var(--bright)}.step-card:nth-child(even){border-top-color:var(--deep)}.step-card h3,.pebble-card h3,.mini-card h3,.number-card h3,.route-card h3,.policy-card h2,.faq-item h2{margin:0 0 8px;color:var(--title);line-height:1.35}.step-card p,.pebble-card p,.mini-card p,.number-card p,.route-card p,.policy-card p,.faq-item p{margin:0;color:var(--sub)}.pebble-card .section-media{margin-bottom:14px}.number-list{display:grid;gap:12px}.number-card{display:grid;grid-template-columns:52px 1fr;gap:14px;align-items:start}.number-card .num{font-size:22px;font-weight:900;color:var(--brand)}.split{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(280px,.75fr);gap:24px;align-items:start}.list-clean{list-style:none;margin:0;padding:0;display:grid;gap:10px}.list-clean li{padding:12px 14px;background:var(--sea-soft);color:var(--deep);border-radius:10px}.page-index{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}.page-index a{min-height:44px;display:inline-flex;align-items:center;padding:0 14px;border:1px solid var(--border);background:#fff;border-radius:10px}.app-showcase{display:grid;grid-template-columns:minmax(240px,.65fr) minmax(0,1.35fr);gap:28px;align-items:center}.app-visual{display:flex;align-items:center;justify-content:center;background:var(--sea-soft);border-radius:18px;min-height:280px;padding:18px}.app-visual img{max-width:100%;max-height:420px;object-fit:contain}.app-icon{width:64px;height:64px;object-fit:contain;border-radius:14px;margin-bottom:14px}.gallery-grid figure{margin:0;background:var(--sea-soft);border-radius:14px;padding:12px;border:1px solid var(--border)}.gallery-grid img{width:100%;height:190px;object-fit:contain;object-position:center}.gallery-grid figcaption{padding:10px 4px 2px;color:var(--sub)}.info-strip{background:var(--pale);color:var(--deep);border:1px solid var(--border);border-radius:16px;padding:20px}.site-footer{margin-top:48px;background:var(--title);color:#D4E8EC;padding:36px 0 calc(78px + env(safe-area-inset-bottom))}.footer-brand-row{padding-bottom:22px;border-bottom:1px solid rgba(255,255,255,.12)}.footer-brand{display:flex;align-items:center;gap:12px}.footer-logo{height:32px;max-width:210px;object-fit:contain}.footer-brand strong{display:block;color:#fff}.footer-brand span{display:block;font-size:12px;letter-spacing:.12em}.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;padding:24px 0}.footer-grid h2{font-size:15px;color:#fff;margin:0 0 10px}.footer-grid a{display:block;color:#D4E8EC;padding:4px 0;font-size:14px}.footer-notice{border-top:1px solid rgba(255,255,255,.12);padding-top:18px;font-size:13px;color:#BFD9DE}.footer-notice p{margin:4px 0}.screen-overlay{position:fixed;inset:0;background:rgba(14,58,70,.38);z-index:79;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.screen-overlay.open{opacity:1;visibility:visible;pointer-events:auto}.tide-drawer{position:fixed;z-index:82;top:0;right:0;height:100dvh;width:min(410px,86vw);background:var(--mist);box-shadow:-16px 0 46px rgba(14,58,70,.18);transform:translateX(105%);visibility:hidden;pointer-events:none;transition:transform .25s ease,visibility .25s}.tide-drawer.open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{height:76px;display:flex;align-items:center;justify-content:space-between;padding:14px 18px;background:#fff;border-bottom:1px solid var(--border)}.drawer-brand{display:flex;align-items:center;gap:10px}.drawer-brand img{height:30px;max-width:160px;object-fit:contain}.drawer-brand strong{display:block;color:var(--title)}.drawer-brand span{display:block;font-size:11px;color:var(--muted);letter-spacing:.1em}.icon-close{width:44px;height:44px;border:1px solid var(--border);background:#fff;color:var(--deep);border-radius:10px;font-size:24px;cursor:pointer}.drawer-scroll{height:calc(100dvh - 76px);overflow:auto;padding:16px}.wave-card{background:#fff;border:1px solid var(--border);border-radius:16px;padding:16px;margin-bottom:14px;box-shadow:var(--shadow)}.wave-card h2{margin:0 0 10px;color:var(--brand);font-size:16px}.wave-card a{display:block;padding:10px 8px;border-radius:10px}.wave-card a:hover{background:var(--sea-soft)}.wave-card strong{display:block;color:var(--title);font-size:15px}.wave-card span{display:block;color:var(--sub);font-size:13px;line-height:1.55}.search-panel{position:fixed;z-index:81;left:0;right:0;top:82px;opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-10px);transition:.2s}.search-panel.open{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)}.search-card{background:#fff;border:1px solid var(--border);border-radius:0 0 18px 18px;padding:18px;box-shadow:var(--shadow)}.search-head{display:flex;align-items:center;justify-content:space-between;color:var(--title)}.search-appearance{margin:14px 0;background:var(--sea-soft);border:1px solid var(--border);min-height:48px;border-radius:10px;display:flex;align-items:center;padding:0 14px;color:var(--muted)}.preset-links{display:flex;flex-wrap:wrap;gap:8px}.preset-links a{min-height:44px;display:inline-flex;align-items:center;padding:0 14px;background:#fff;border:1px solid var(--border);border-radius:10px}.mobile-bottom{display:none}.muted{color:var(--muted)}.kicker{font-size:14px;color:var(--brand);font-weight:800}.quote-box{padding:20px;background:var(--sea-soft);border-left:4px solid var(--brand);border-radius:0 12px 12px 0;color:var(--deep)}.timeline{display:grid;gap:14px}.timeline article{display:grid;grid-template-columns:34px 1fr;gap:12px}.timeline .dot{width:18px;height:18px;border-radius:50%;background:var(--brand);margin-top:5px}.timeline h3{margin:0 0 6px;color:var(--title)}.timeline p{margin:0;color:var(--sub)}
@media (max-width:900px){.step-grid,.pebble-grid,.four-grid,.gallery-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.three-grid{grid-template-columns:1fr 1fr}.split,.app-showcase{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:680px){:root{--header-h:82px}.shell{width:min(calc(100% - 32px),var(--max))}.shell-tag{display:none}.dock-row{grid-template-columns:minmax(0,1fr) auto auto;gap:6px}.brand-logo{max-width:128px;height:30px}.brand-text{font-size:18px}.window-trigger,.app-link{padding:0 10px;font-size:14px}.site-main{padding-top:calc(var(--header-h) + 20px)}.page-hero,.section-block{padding:20px;border-radius:15px}.page-hero h1{font-size:28px}.step-grid,.pebble-grid,.four-grid,.three-grid,.gallery-grid,.footer-grid{grid-template-columns:1fr}.number-card{grid-template-columns:42px 1fr}.search-panel{top:82px}.search-card{width:calc(100% - 16px);background:var(--sea-soft);border-radius:0 0 14px 14px}.mobile-bottom{position:fixed;z-index:55;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(5,1fr);height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid var(--border)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:50px;font-size:13px;color:var(--deep)}.mobile-bottom a.active{background:var(--brand);color:#fff}.site-footer{padding-bottom:calc(76px + env(safe-area-inset-bottom))}.gallery-grid img{height:210px}.hero-media{min-height:150px}.mist-brand{font-size:11px}.mist-search{font-size:12px}}