:root{
  --bg:#F3FAF7;--bg-deep:#E4F3EE;--card:#FFFFFF;--mint:#D8EFE8;--ink:#12332E;--text:#1E403A;
  --muted:#4E6F68;--soft:#6A8A82;--brand:#0F7A6B;--bright:#1B9A88;--deep:#0B5C52;--sand:#F7F1E6;
  --line:rgba(15,122,107,.16);--line-strong:rgba(15,122,107,.42);--shadow:0 12px 28px rgba(11,92,82,.08);
  --radius:12px;--max:1120px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",Arial,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}
a{color:inherit;text-decoration:none}
a,button,input{font:inherit}
button{cursor:pointer}
img{display:block;max-width:100%}
.skip-link{position:fixed;left:12px;top:-60px;z-index:9999;background:#fff;color:var(--deep);padding:8px 12px;border-radius:8px;border:1px solid var(--line-strong)}
.skip-link:focus{top:10px}
.tide-line{height:22px;background:var(--deep);color:#fff;position:fixed;inset:0 0 auto 0;z-index:1100;font-size:12px}
.tide-line-inner,.cape-bar-inner,.island-tabs-inner,.footer-inner,.content-wrap{width:min(var(--max),calc(100% - 32px));margin:0 auto}
.tide-line-inner{height:22px;display:flex;align-items:center;justify-content:space-between}
.top-search-button{border:0;background:transparent;color:#fff;padding:0 6px;height:22px;line-height:22px}
.cape-bar{height:60px;background:#fff;border-bottom:1px solid var(--line);position:fixed;top:22px;left:0;right:0;z-index:1090}
.cape-bar-inner{height:60px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px}
.brand-link{justify-self:start;display:inline-flex;align-items:center;min-height:44px}
.brand-logo,.drawer-logo,.footer-logo{height:28px;width:auto;object-fit:contain;object-position:center}
.brand-text{font-size:16px;font-weight:800;color:var(--deep);letter-spacing:.06em}
.harbor-button,.app-link{height:44px;min-width:76px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:700}
.harbor-button{border:1px solid var(--line-strong);background:#fff;color:var(--deep);justify-self:center}
.app-link{background:linear-gradient(135deg,#1B9A88 0%,#0F7A6B 55%,#0B5C52 100%);color:#fff;justify-self:end;padding:0 16px}
.island-tabs{position:fixed;top:82px;left:0;right:0;height:40px;background:var(--mint);border-bottom:1px solid var(--line);z-index:1080}
.island-tabs-inner{height:40px;display:flex;align-items:center;justify-content:center;gap:10px}
.island-tabs a{height:30px;padding:0 16px;display:inline-flex;align-items:center;border-radius:999px;font-size:13px;color:var(--deep)}
.island-tabs a.active{background:var(--brand);color:#fff}
.site-main{padding-top:122px;min-height:60vh}
.content-wrap{padding:28px 0 48px}
.page-hero{background:linear-gradient(180deg,var(--sand),#fff);border:1px solid var(--line);border-radius:14px;padding:28px;margin-bottom:22px;box-shadow:var(--shadow)}
.page-kicker{font-size:12px;font-weight:800;letter-spacing:.12em;color:var(--brand);margin:0 0 6px}
h1,h2,h3{color:var(--ink);margin-top:0}
h1{font-size:24px;line-height:1.3;margin-bottom:12px}
h2{font-size:20px;line-height:1.35;margin-bottom:12px}
h3{font-size:16px;line-height:1.45;margin-bottom:8px}
p{margin:0 0 12px}
.lead{font-size:16px;color:var(--muted);max-width:820px}
.section{margin:24px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:14px;margin-bottom:14px}
.section-head p{color:var(--muted);margin:0;max-width:650px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.card-grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.card-grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}
.card,.note-card,.route-card,.faq-card,.article-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:0 6px 18px rgba(11,92,82,.04)}
.card p,.note-card p,.route-card p,.article-card p{color:var(--text)}
.meta-line{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px}
.tag{display:inline-flex;align-items:center;min-height:28px;padding:0 10px;border-radius:999px;background:var(--bg-deep);color:var(--deep);font-size:12px;font-weight:700}
.media-slot{width:100%;min-height:120px;border:1px solid var(--line);border-radius:12px;background:linear-gradient(145deg,var(--sand),var(--mint));display:flex;align-items:center;justify-content:center;overflow:hidden}
.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}
.hero-media{height:260px}.tile-media{height:180px}.wide-media{height:200px}.app-media{height:360px}
.btn-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.btn{min-height:44px;padding:0 18px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:800}
.btn.primary{background:linear-gradient(135deg,#1B9A88 0%,#0F7A6B 55%,#0B5C52 100%);color:#fff}
.btn.secondary{background:#fff;color:var(--deep);border:1px solid var(--line-strong)}
.btn:hover,.harbor-button:hover,.app-link:hover,.island-tabs a:hover,.mobile-bottom-nav a:hover{filter:brightness(.98);transform:translateY(-1px)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(27,154,136,.28);outline-offset:2px}
.cover-copy{padding:18px 6px 0;text-align:center}.cover-copy p{max-width:760px;margin-left:auto;margin-right:auto}
.feature-number{font-weight:900;color:var(--brand);font-size:13px;letter-spacing:.08em}
.list-clean{list-style:none;margin:0;padding:0}.list-clean li{padding:11px 0;border-bottom:1px solid var(--line)}.list-clean li:last-child{border-bottom:0}
.shelf{display:grid;gap:10px}.shelf-item{display:grid;grid-template-columns:90px 1fr;gap:14px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px}.shelf-item b{color:var(--deep)}
.figure-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}.figure-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px;min-height:150px}
.timeline{position:relative;margin-left:12px;padding-left:30px}.timeline:before{content:"";position:absolute;left:7px;top:4px;bottom:4px;width:2px;background:var(--line-strong)}.timeline-item{position:relative;background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px;margin-bottom:14px}.timeline-item:before{content:"";position:absolute;left:-30px;top:22px;width:12px;height:12px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 5px var(--bg)}
.status{font-size:12px;font-weight:800;color:var(--brand);letter-spacing:.06em}
.article-flow{display:grid;gap:16px}.article-flow .article-card h2{margin-bottom:10px}
.quote{background:var(--sand);border-left:4px solid var(--brand);padding:14px 16px;border-radius:0 10px 10px 0;color:var(--deep)}
.definition-list{display:grid;gap:12px}.definition-list>div{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px}.definition-list dt{font-weight:800;color:var(--deep);margin-bottom:6px}.definition-list dd{margin:0;color:var(--text)}
.faq-list{display:grid;gap:14px}.faq-card h2{font-size:17px;margin-bottom:8px}.faq-card p{margin:0}
.notice{background:var(--mint);border:1px solid var(--line-strong);border-radius:12px;padding:16px;color:var(--deep)}
.site-footer{background:var(--deep);color:#D8EFE8;border-top:1px solid rgba(247,241,230,.45);font-size:13px;padding:30px 0 82px}
.footer-brand{display:flex;align-items:center;gap:12px;padding-bottom:18px;border-bottom:1px solid rgba(216,239,232,.18);margin-bottom:18px}.footer-brand strong{color:#fff;font-size:16px}
.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}.footer-grid section{display:flex;flex-direction:column;gap:7px}.footer-grid h2{font-size:13px;color:#fff;margin:0 0 5px}.footer-grid a{color:#D8EFE8}.footer-grid a:hover{text-decoration:underline}.footer-note{margin-top:22px;padding-top:18px;border-top:1px solid rgba(216,239,232,.18);color:#D8EFE8}.copyright{color:#fff;margin-bottom:0}
.site-overlay{position:fixed;inset:0;background:rgba(11,40,36,.38);z-index:1200;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}
.site-overlay.active{opacity:1;visibility:visible;pointer-events:auto}
.harbor-drawer{position:fixed;right:0;top:0;bottom:0;width:min(400px,86vw);background:#fff;z-index:1210;transform:translateX(104%);visibility:hidden;pointer-events:none;transition:transform .24s ease,visibility .24s;box-shadow:-16px 0 40px rgba(11,92,82,.12);display:flex;flex-direction:column}
.harbor-drawer.open{transform:translateX(0);visibility:visible;pointer-events:auto}
.drawer-head{height:68px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:0 16px;flex:0 0 auto}.drawer-brand{display:flex;align-items:center;gap:10px}.drawer-brand span{font-size:12px;color:var(--muted)}.drawer-close,.search-head button{min-height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--deep);padding:0 12px}
.drawer-body{overflow-y:auto;padding:14px 16px 28px}.drawer-group{margin-bottom:18px}.drawer-group h2{font-size:14px;margin-bottom:8px;color:var(--brand)}.drawer-group a{display:block;border-bottom:1px solid var(--line);padding:10px 4px}.drawer-group b{display:block;color:var(--ink);font-size:14px}.drawer-group span{display:block;color:var(--muted);font-size:12px;margin-top:2px}
.search-panel{position:fixed;top:82px;left:0;right:0;z-index:1220;visibility:hidden;pointer-events:none;opacity:0;transition:.18s}.search-panel.open{visibility:visible;pointer-events:auto;opacity:1}.search-card{width:min(760px,calc(100% - 32px));margin:12px auto;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;box-shadow:var(--shadow)}.search-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}.search-head strong{color:var(--ink);font-size:18px}.search-card label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}.search-card input{width:100%;height:44px;border:1px solid var(--line-strong);border-radius:10px;padding:0 12px;color:var(--text);background:#fff}.search-presets{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.search-presets a{min-height:40px;display:inline-flex;align-items:center;padding:0 12px;border-radius:999px;background:var(--bg-deep);color:var(--deep)}
.panel-open{overflow:hidden}
.mobile-bottom-nav{display:none}
.prose p{margin-bottom:14px}.prose h2{margin-top:24px}.prose h3{margin-top:18px}

.mt-16{margin-top:16px}
.app-icon{width:48px;height:48px;object-fit:contain;object-position:center;margin-bottom:12px}

.index-brand-intro{padding:18px;background:#fff;border:1px solid var(--line);border-radius:12px}
.breadcrumbs{font-size:12px;color:var(--muted);margin-bottom:10px}.breadcrumbs a{color:var(--brand)}
@media (max-width:900px){.card-grid.four{grid-template-columns:repeat(2,minmax(0,1fr))}.figure-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:720px){
  body{padding-bottom:calc(48px + env(safe-area-inset-bottom))}.tide-line-inner,.cape-bar-inner,.footer-inner,.content-wrap{width:calc(100% - 32px)}
  .island-tabs{display:none}.site-main{padding-top:82px}.cape-bar-inner{grid-template-columns:1fr auto 1fr;gap:6px}.brand-link{min-width:0}.brand-logo{max-width:100px}.harbor-button{min-width:68px}.app-link{min-width:68px;padding:0 10px}
  .content-wrap{padding-top:18px}.page-hero{padding:20px}.hero-media{height:220px}.tile-media{height:170px}.wide-media{height:190px}.app-media{height:320px}
  .card-grid,.card-grid.two,.card-grid.four{grid-template-columns:1fr}.figure-grid{grid-template-columns:1fr}.shelf-item{grid-template-columns:1fr}.section-head{align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:1fr 1fr;gap:18px}.site-footer{padding-bottom:88px}
  .mobile-bottom-nav{position:fixed;left:0;right:0;bottom:0;z-index:1000;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(5,1fr)}.mobile-bottom-nav a{display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--deep);min-width:0}.mobile-bottom-nav a.active{background:var(--brand);color:#fff}
  .search-panel{inset:0;top:0;background:var(--deep);color:#fff;padding:16px}.search-card{width:100%;height:100%;margin:0;background:var(--deep);border-color:rgba(255,255,255,.2);box-shadow:none;color:#fff;padding-top:max(16px,env(safe-area-inset-top))}.search-head strong,.search-card label{color:#fff}.search-head button{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}.search-card input{background:#fff;color:var(--ink)}.search-presets a{background:#fff;color:var(--deep)}
}
@media (max-width:420px){.footer-grid{grid-template-columns:1fr}.cover-copy{text-align:left}.btn-row{display:grid;grid-template-columns:1fr}.btn{width:100%}.figure-grid{grid-template-columns:1fr}.page-hero{padding:18px}.harbor-button,.app-link{font-size:13px}}