:root{
    --bg:#F4FAFC;--surface:#FFFFFF;--surface-2:#E7F3F6;--text:#24505A;--title:#0E3A46;--muted:#4A7380;--soft:#7A9AA4;--brand:#1A7F8F;--bright:#2BB3C4;--deep:#0F5B68;--pale:#D7EEF2;--line:rgba(26,127,143,.16);--shadow:0 14px 34px rgba(14,58,70,.08);--radius:16px;--max:1180px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;line-height:1.75;overflow-x:hidden}body.no-scroll{overflow:hidden}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input{font:inherit}button{cursor:pointer}.site-header{position:fixed;inset:0 0 auto;z-index:50}.mist-line{height:20px;background:var(--title);color:#fff;font-size:12px}.top-inner,.dock-inner,.shell-inner{max-width:var(--max);height:100%;margin:0 auto;padding:0 22px;display:flex;align-items:center}.top-inner{justify-content:space-between}.brand-mini{font-weight:700;letter-spacing:.05em}.icon-text-button{height:20px;padding:0 8px;border:0;background:transparent;color:#fff;font-size:12px}.dock-bar{height:62px;background:#fff;border-bottom:1px solid var(--line)}.dock-inner{display:grid;grid-template-columns:1fr auto 1fr;gap:18px}.brand-logo{justify-self:start;display:flex;align-items:center;min-height:44px;font-weight:800;color:var(--title);font-size:21px}.brand-logo img{height:34px;width:auto;max-width:190px;object-fit:contain;object-position:left center}.drawer-trigger,.app-entry,.close-button{min-height:44px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--deep);padding:0 16px;font-weight:700}.drawer-trigger{justify-self:center}.app-entry{justify-self:end;display:flex;align-items:center;background:linear-gradient(135deg,#2BB3C4 0%,#1A7F8F 55%,#0F5B68 100%);color:#fff;border-color:transparent}.shell-tabs{height:42px;background:var(--pale);border-bottom:1px solid var(--line)}.shell-inner{gap:6px}.shell-tabs a{display:flex;align-items:center;min-height:32px;padding:0 12px;border-radius:8px;color:var(--deep);font-weight:700;font-size:14px}.shell-tabs a.is-current{background:var(--brand);color:#fff}.site-main{padding-top:124px}.container{width:min(calc(100% - 44px),var(--max));margin:0 auto}.page-hero{padding:58px 0 30px}.page-hero .eyebrow,.eyebrow{display:inline-block;color:var(--brand);font-weight:800;font-size:13px;letter-spacing:.08em;margin-bottom:8px}.page-hero h1{font-size:clamp(28px,4vw,32px);line-height:1.28;color:var(--title);margin:0 0 14px}.lead{font-size:17px;color:var(--muted);max-width:820px;margin:0}.section{padding:34px 0}.section.alt{background:var(--surface-2);border-block:1px solid var(--line)}.section-title{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:18px}.section-title h2{margin:0;color:var(--title);font-size:24px;line-height:1.35}.section-title p{margin:0;color:var(--soft);max-width:580px}.card-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.card-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.card-grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}.card h3{margin:0 0 8px;color:var(--title);font-size:18px}.card p{margin:0;color:var(--muted)}.card a.more,.text-link{display:inline-flex;align-items:center;min-height:44px;margin-top:10px;color:var(--brand);font-weight:800}.media-frame{width:100%;height:210px;border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(145deg,#fff,#eef8fa);display:flex;align-items:center;justify-content:center;overflow:hidden}.media-frame img{width:100%;height:100%;object-fit:contain;object-position:center}.media-frame.hero-media{height:min(300px,42vw);min-height:190px}.media-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:linear-gradient(145deg,var(--pale),#fff);color:var(--deep);font-size:clamp(28px,5vw,56px);font-weight:900;letter-spacing:.08em}.media-frame.app-visual{height:420px}.hero-home{padding:28px 0 34px}.hero-copy{padding:26px 0 0}.hero-copy h1{font-size:clamp(28px,5vw,40px);line-height:1.24;color:var(--title);margin:6px 0 12px}.hero-copy p{max-width:860px;margin:0;color:var(--muted);font-size:17px}.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;border-radius:10px;font-weight:800;border:1px solid var(--line)}.button.primary{background:linear-gradient(135deg,#2BB3C4 0%,#1A7F8F 55%,#0F5B68 100%);color:#fff;border-color:transparent}.button.secondary{background:#fff;color:var(--deep)}.step-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.step-link{display:block;border-radius:12px;padding:16px;min-height:126px;border:1px solid var(--line);background:#fff}.step-link:nth-child(odd){border-top:4px solid var(--bright)}.step-link:nth-child(even){border-top:4px solid var(--deep)}.step-link strong{display:block;color:var(--title);margin-bottom:6px}.step-link span{display:block;color:var(--muted);font-size:14px}.number-list{display:grid;gap:12px;counter-reset:item}.number-item{display:grid;grid-template-columns:56px 1fr;gap:14px;align-items:start;padding:16px;background:#fff;border:1px solid var(--line);border-radius:14px}.number-item .num{display:flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:12px;background:var(--deep);color:#fff;font-weight:900}.number-item h3{margin:0 0 5px;color:var(--title)}.number-item p{margin:0}.split{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:24px;align-items:center}.article-copy{max-width:820px}.article-copy p{margin:0 0 16px}.article-copy h2{font-size:24px;color:var(--title);margin:28px 0 10px}.article-copy h3{font-size:19px;color:var(--title);margin:22px 0 8px}.chapter-list{display:grid;gap:18px}.chapter{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px}.chapter h2,.chapter h3{color:var(--title);margin-top:0}.chapter p:last-child{margin-bottom:0}.gallery-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.gallery-home{margin-top:16px}.gallery-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:12px}.gallery-item .media-frame{height:220px}.gallery-item h3{margin:12px 6px 4px;color:var(--title)}.gallery-item p{margin:0 6px 6px;color:var(--muted)}.faq-list{display:grid;gap:14px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px}.faq-item h2{margin:0 0 8px;font-size:18px;color:var(--title)}.faq-item p{margin:0}.note-box{background:var(--pale);color:var(--deep);border:1px solid var(--line);border-radius:14px;padding:18px}.note-box strong{color:var(--title)}.site-footer{background:var(--title);color:#D4E8EC;margin-top:34px;padding:42px 0 calc(30px + env(safe-area-inset-bottom))}.footer-inner{width:min(calc(100% - 44px),var(--max));margin:auto}.footer-brand{display:grid;grid-template-columns:320px 1fr;gap:28px;padding-bottom:24px;border-bottom:1px solid rgba(255,255,255,.12)}.footer-logo{display:flex;align-items:center;gap:12px}.footer-logo img{height:32px;width:auto;max-width:180px;object-fit:contain}.footer-logo strong,.footer-logo small{display:block}.footer-logo small{font-size:11px;letter-spacing:.12em;color:#9FC7CE}.footer-brand p{margin:0;color:#B9D6DB}.footer-groups{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:26px 0}.footer-groups h2{font-size:15px;margin:0 0 10px;color:#fff}.footer-groups a{display:block;color:#C9E1E5;padding:5px 0}.footer-bottom{padding-top:18px;border-top:1px solid rgba(255,255,255,.12);font-size:14px;color:#A8CAD0}.tide-drawer{position:fixed;top:0;right:0;bottom:0;width:min(410px,86vw);background:#F8FCFD;z-index:80;box-shadow:-20px 0 50px rgba(14,58,70,.18);transform:translateX(105%);visibility:hidden;pointer-events:none;transition:transform .28s ease,visibility .28s ease;overflow-y:auto;padding:18px}.tide-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;position:sticky;top:0;background:#F8FCFD;padding:4px 0 14px;z-index:2}.drawer-brand{display:flex;align-items:center;gap:10px}.drawer-brand img{height:30px;width:auto;max-width:150px;object-fit:contain}.drawer-brand strong,.drawer-brand small{display:block}.drawer-brand small{font-size:10px;letter-spacing:.12em;color:var(--soft)}.wave-cards{display:grid;gap:12px}.wave-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px;box-shadow:var(--shadow)}.wave-card:nth-child(even){margin-left:12px}.wave-card h2{margin:0 0 6px;font-size:15px;color:var(--brand)}.wave-card a{display:block;padding:10px 8px;border-radius:10px}.wave-card a:hover,.wave-card a:focus-visible{background:var(--pale);outline:none}.wave-card strong{display:block;color:var(--title);font-size:14px}.wave-card span{display:block;color:var(--muted);font-size:12px;margin-top:2px}.search-panel{position:fixed;top:82px;left:50%;width:min(calc(100% - 44px),920px);transform:translate(-50%,-18px);z-index:70;visibility:hidden;pointer-events:none;opacity:0;transition:.22s ease}.search-panel.is-open{visibility:visible;pointer-events:auto;opacity:1;transform:translate(-50%,0)}.search-card{background:#fff;border:1px solid var(--line);border-radius:0 0 18px 18px;padding:22px;box-shadow:0 24px 60px rgba(14,58,70,.2)}.search-head{display:flex;justify-content:space-between;gap:18px;align-items:start}.search-head h2{margin:0;color:var(--title);font-size:22px}.search-look{margin-top:16px}.search-look label{display:block;font-size:13px;font-weight:800;color:var(--deep);margin-bottom:6px}.search-look input{width:100%;min-height:48px;border:1px solid var(--line);border-radius:10px;padding:0 14px;color:var(--title);background:#FAFDFD;outline:none}.search-look input:focus{border-color:var(--bright);box-shadow:0 0 0 3px rgba(43,179,196,.14)}.search-look p{margin:6px 0 0;color:var(--soft);font-size:13px}.preset-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.preset-links a{display:flex;align-items:center;min-height:44px;padding:0 14px;border:1px solid var(--line);border-radius:10px;color:var(--deep);font-weight:700;background:var(--pale)}.page-overlay{position:fixed;inset:0;background:rgba(14,58,70,.36);z-index:60;opacity:0;visibility:hidden;pointer-events:none;transition:.22s ease}.page-overlay.is-active{opacity:1;visibility:visible;pointer-events:auto}.mobile-bottom{display:none}.button:hover,.button:focus-visible,.drawer-trigger:hover,.drawer-trigger:focus-visible,.app-entry:hover,.app-entry:focus-visible,.close-button:hover,.close-button:focus-visible,.icon-text-button:focus-visible,.shell-tabs a:focus-visible,.footer-groups a:focus-visible{outline:3px solid rgba(43,179,196,.25);outline-offset:2px}.simple-list{display:grid;gap:10px;padding:0;margin:0;list-style:none}.simple-list li{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px}.kicker{font-weight:800;color:var(--brand)}
@media (max-width:900px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.step-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.split{grid-template-columns:1fr}.footer-brand{grid-template-columns:1fr}.footer-groups{grid-template-columns:repeat(2,1fr)}}
@media (max-width:700px){body{padding-bottom:calc(50px + env(safe-area-inset-bottom))}.site-main{padding-top:82px}.shell-tabs{display:none}.top-inner,.dock-inner{padding:0 16px}.dock-inner{grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);gap:8px}.brand-logo{max-width:100%;overflow:hidden;min-width:0}.brand-logo img{height:30px;max-width:135px}.brand-logo span{font-size:17px;white-space:nowrap}.drawer-trigger,.app-entry{padding:0 10px;font-size:13px;min-width:0}.app-entry{white-space:nowrap}.container,.footer-inner{width:min(calc(100% - 32px),var(--max))}.hero-home{padding-top:18px}.media-frame.hero-media{height:220px}.page-hero{padding:36px 0 22px}.section{padding:28px 0}.section-title{display:block}.section-title p{margin-top:6px}.card-grid,.card-grid.three,.card-grid.two,.step-grid,.gallery-grid{grid-template-columns:1fr}.media-frame,.gallery-item .media-frame{height:200px}.media-frame.app-visual{height:340px}.footer-groups{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.search-panel{top:82px;width:calc(100% - 20px)}.search-card{background:var(--pale);padding:16px}.search-head h2{font-size:19px}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:45;height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(5,1fr);background:#fff;border-top:1px solid var(--line);box-shadow:0 -8px 24px rgba(14,58,70,.08)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:50px;font-size:13px;color:var(--deep);font-weight:700}.mobile-bottom a.is-current{background:var(--brand);color:#fff}.site-footer{margin-bottom:0}.tide-drawer{width:86vw}.number-item{grid-template-columns:48px 1fr}.number-item .num{width:44px;height:44px}.wave-card:nth-child(even){margin-left:0}}
@media (max-width:420px){.footer-groups{grid-template-columns:1fr 1fr}.dock-inner{gap:5px}.drawer-trigger,.app-entry{font-size:12px;padding:0 8px}.brand-mini{font-size:11px}.hero-copy p,.lead{font-size:16px}}