:root{--bg:#F4FAFC;--deep:#fff;--card:#fff;--sub:#E7F3F6;--title:#0E3A46;--text:#24505A;--muted:#4A7380;--soft:#7A9AA4;--sea:#1A7F8F;--bright:#2BB3C4;--dark:#0F5B68;--pale:#D7EEF2;--line:rgba(26,127,143,.16);--shadow:0 14px 34px rgba(14,58,70,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.78 system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;overflow-x:hidden}body.ui-locked{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}.head-inner,.wrap,.footer-inner{width:min(calc(100% - 32px),1180px);margin:auto}.site-head{position:fixed;inset:0 0 auto 0;z-index:100}.tide-line{height:22px;background:var(--dark);color:#fff;font-size:12px}.tide-inner{height:22px;display:flex;align-items:center;justify-content:space-between}.top-search{border:0;background:transparent;color:#fff;padding:0 8px;min-height:22px}.lighthouse-bar{height:68px;background:#fff;border-bottom:1px solid var(--line)}.lighthouse-inner{height:68px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:14px}.brand-lockup{justify-self:start;display:flex;align-items:center;min-width:0}.brand-logo{height:36px;max-width:190px;object-fit:contain}.brand-text{font-size:20px;font-weight:900;color:var(--title)}.book-button{justify-self:center;border:1px solid rgba(26,127,143,.28);background:var(--bg);color:var(--title);min-height:44px;padding:0 18px;border-radius:12px;font-weight:800}.app-link{justify-self:end;display:flex;align-items:center;justify-content:center;min-height:44px;padding:0 17px;border-radius:12px;background:linear-gradient(135deg,#2BB3C4 0%,#1A7F8F 55%,#0F5B68 100%);color:#fff;font-weight:900;white-space:nowrap}.shore-tabs{height:44px;background:var(--pale);border-bottom:1px solid var(--line)}.shore-inner{height:44px;display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none}.shore-inner::-webkit-scrollbar{display:none}.shore-link{display:flex;align-items:center;min-height:32px;padding:0 13px;color:var(--title);font-size:14px;font-weight:800;border-radius:8px;white-space:nowrap}.shore-link.active{background:var(--sea);color:#fff}.site-main{padding-top:134px}.section{padding:34px 0}.section.alt{background:var(--sub)}.section.deep{background:var(--dark);color:#fff}.eyebrow{margin:0 0 6px;color:var(--sea);font-weight:900;font-size:13px;letter-spacing:.08em}.deep .eyebrow{color:#BCE9ED}h1,h2,h3{color:var(--title);line-height:1.28}.deep h2,.deep h3{color:#fff}h1{font-size:clamp(28px,4vw,32px);margin:0 0 12px}.lead{max-width:850px;margin:0;color:var(--muted);font-size:17px}.deep .lead,.deep p{color:#E7F3F6}.hero-shell{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow)}.hero-media{min-height:180px;display:flex;align-items:center;justify-content:center;background:linear-gradient(145deg,#D7EEF2,#F4FAFC);padding:12px}.hero-media img{width:100%;max-height:320px;object-fit:contain;object-position:center}.hero-copy{padding:25px}.hero-copy h1{margin-top:4px}.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;border-radius:12px;background:linear-gradient(135deg,#2BB3C4,#1A7F8F 55%,#0F5B68);color:#fff;font-weight:900}.button.secondary{background:#fff;color:var(--dark);border:1px solid rgba(26,127,143,.25)}.grid-2,.grid-3,.grid-4,.grid-6{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{grid-template-columns:repeat(4,minmax(0,1fr))}.grid-6{grid-template-columns:repeat(6,minmax(0,1fr))}.tag-card,.content-card,.long-board,.info-card,.step-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;box-shadow:var(--shadow)}.tag-card:nth-child(even){background:var(--dark);color:#fff}.tag-card:nth-child(even) h3{color:#fff}.tag-card h3,.content-card h3,.long-board h3,.info-card h3{margin:0 0 7px;font-size:18px}.tag-card p,.content-card p,.long-board p,.info-card p{margin:0;color:var(--muted)}.tag-card:nth-child(even) p{color:#D7EEF2}.card-link{display:inline-block;margin-top:10px;color:var(--sea);font-weight:900}.tag-card:nth-child(even) .card-link{color:#fff;text-decoration:underline}.image-slot{height:220px;border-radius:14px;background:var(--sub);display:flex;align-items:center;justify-content:center;overflow:hidden;margin-bottom:14px}.image-slot img,.content-img{width:100%;height:100%;object-fit:contain;object-position:center}.image-slot.banner{height:auto;min-height:190px;max-height:320px}.image-slot.banner img{max-height:320px;height:auto}.number-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:18px}.number-item{padding:16px;border-top:3px solid var(--bright);background:#fff;border-radius:0 0 12px 12px}.number-item b{display:block;color:var(--sea);font-size:24px}.number-item span{color:var(--muted)}.article-shell{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(260px,.5fr);gap:22px;align-items:start}.article-body{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;box-shadow:var(--shadow)}.article-body section+section{margin-top:28px}.article-body h2{font-size:21px;margin:0 0 8px}.article-body p{margin:0 0 10px}.side-index{position:sticky;top:154px;background:var(--pale);border-radius:16px;padding:18px}.side-index h2{font-size:16px;margin:0 0 10px}.side-index a{display:block;padding:7px 0;color:var(--dark);font-weight:800}.layout-cards .article-body{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;background:transparent;border:0;padding:0;box-shadow:none}.layout-cards .article-body section{background:#fff;border:1px solid var(--line);border-radius:16px;padding:19px;box-shadow:var(--shadow);margin:0}.layout-cards .side-index{background:#fff}.layout-timeline .article-body{border-left:4px solid var(--bright)}.layout-timeline .article-body section{padding-left:18px;position:relative}.layout-timeline .article-body section:before{content:"";position:absolute;left:-31px;top:8px;width:12px;height:12px;border-radius:50%;background:var(--sea);border:3px solid var(--bg)}.layout-soft .article-body{background:linear-gradient(180deg,#fff,#F6FCFD)}.app-layout{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:24px;align-items:center}.app-art{min-height:280px;background:var(--pale);border-radius:18px;padding:20px;display:flex;align-items:center;justify-content:center}.app-art img{width:100%;max-height:420px;object-fit:contain}.app-icon{width:64px!important;height:64px!important;object-fit:contain!important}.faq-grid details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 16px}.faq-grid details+details{margin-top:10px}.faq-grid summary{font-weight:900;color:var(--title);cursor:pointer}.faq-grid p{margin:10px 0 0}.site-footer{margin-top:38px;background:#0E3A46;color:#D4E8EC;padding:42px 0 82px}.footer-brand{display:flex;align-items:center;gap:18px;padding-bottom:24px;border-bottom:1px solid rgba(255,255,255,.14)}.footer-logo{height:34px;max-width:190px;object-fit:contain}.footer-brand strong{display:block;color:#fff;font-size:22px}.footer-brand span{display:block;font-size:12px;letter-spacing:.12em}.footer-brand p{margin:5px 0 0;max-width:650px}.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;padding:26px 0}.footer-grid h2{font-size:15px;color:#fff;margin:0 0 9px}.footer-grid a{display:block;padding:5px 0}.footer-note{padding-top:18px;border-top:1px solid rgba(255,255,255,.14)}.copyright{margin:8px 0 0;color:#A9C8CE;font-size:13px}.site-overlay{position:fixed;inset:0;z-index:108;background:rgba(14,58,70,.35);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.site-overlay.open{opacity:1;visibility:visible;pointer-events:auto}.book-panel{position:fixed;left:0;top:90px;bottom:0;width:360px;max-width:86vw;z-index:110;background:#fff;transform:translateX(-104%);visibility:hidden;pointer-events:none;transition:transform .24s ease,visibility .24s;box-shadow:22px 0 44px rgba(14,58,70,.16);overflow:auto}.book-panel.open{transform:translateX(0);visibility:visible;pointer-events:auto}.book-shell{min-height:100%;background:#fff}.panel-head,.search-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:15px 17px;border-bottom:1px solid var(--line);position:sticky;top:0;background:#fff;z-index:2}.panel-brand{display:flex;align-items:center;gap:10px;color:var(--title)}.panel-logo{height:32px;max-width:160px;object-fit:contain}.close-button{min-height:44px;padding:0 14px;border-radius:10px;border:1px solid rgba(26,127,143,.25);background:var(--bg);color:var(--dark)}.panel-groups{padding:10px}.panel-groups section{padding:8px}.panel-groups h2{font-size:14px;color:var(--sea);margin:0 0 7px}.panel-groups a{display:block;padding:9px;border-radius:10px}.panel-groups a:hover,.panel-groups a:focus-visible{background:var(--pale)}.panel-groups strong{display:block;color:var(--title);font-size:14px}.panel-groups span{display:block;color:var(--muted);font-size:12px;line-height:1.55;margin-top:2px}.search-panel{position:fixed;top:90px;left:50%;transform:translate(-50%,-18px);z-index:111;width:min(860px,calc(100% - 32px));background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);visibility:hidden;opacity:0;pointer-events:none;transition:.2s}.search-panel.open{visibility:visible;opacity:1;pointer-events:auto;transform:translate(-50%,0)}.search-shell{padding-bottom:18px}.search-box{display:block;padding:18px}.search-box input{width:100%;height:48px;border:1px solid rgba(26,127,143,.26);background:var(--bg);border-radius:10px;padding:0 16px;color:var(--title);outline:none}.search-box input:focus{border-color:var(--sea);box-shadow:0 0 0 3px rgba(26,127,143,.12)}.search-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;padding:0 18px}.search-links a{display:block;background:var(--pale);padding:13px;border-radius:12px}.search-links strong,.search-links span{display:block}.search-links strong{color:var(--title)}.search-links span{color:var(--muted);font-size:13px}.mobile-nav{display:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}a:focus-visible,button:focus-visible{outline:3px solid rgba(43,179,196,.45);outline-offset:2px}@media(hover:hover){.button:hover,.app-link:hover{filter:brightness(.97);transform:translateY(-1px)}.book-button:hover{background:var(--pale)}.card-link:hover{text-decoration:underline}}@media(max-width:820px){.site-main{padding-top:90px}.shore-tabs{display:none}.lighthouse-inner{grid-template-columns:minmax(0,1fr) auto auto;gap:8px}.brand-logo{height:30px;max-width:135px}.brand-text{font-size:17px}.book-button,.app-link{padding:0 12px}.grid-3,.grid-4,.grid-6{grid-template-columns:repeat(2,minmax(0,1fr))}.article-shell{grid-template-columns:1fr}.side-index{position:static}.app-layout{grid-template-columns:1fr}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.search-panel{top:22px;width:100%;height:calc(100vh - 22px);max-height:none;background:var(--pale);overflow:auto}.search-links{grid-template-columns:1fr 1fr}.book-panel{top:90px;width:86%;max-width:86%}.mobile-nav{position:fixed;left:0;right:0;bottom:0;z-index:90;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(--line)}.mobile-nav a{display:flex;align-items:center;justify-content:center;min-height:50px;color:var(--muted);font-size:13px;font-weight:800}.mobile-nav a.active{background:var(--sea);color:#fff}.site-footer{padding-bottom:calc(82px + env(safe-area-inset-bottom))}.grid-2{grid-template-columns:1fr}.number-list{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:560px){.head-inner,.wrap,.footer-inner{width:min(calc(100% - 32px),1180px)}.tide-inner{font-size:11px}.lighthouse-inner{gap:6px}.brand-logo{max-width:110px;height:28px}.brand-text{font-size:15px}.book-button,.app-link{min-height:44px;padding:0 10px;font-size:13px}.section{padding:28px 0}.hero-copy{padding:20px}.grid-3,.grid-4,.grid-6,.layout-cards .article-body{grid-template-columns:1fr}.search-links{grid-template-columns:1fr}.image-slot{height:190px}.footer-grid{grid-template-columns:1fr 1fr;gap:18px}.book-panel{width:86%}.article-body{padding:20px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}