:root{--bg:#F5F8FA;--paper:#fff;--bluewash:#EAF3F7;--sand:#F7F1E6;--ink:#173044;--body:#294356;--muted:#607789;--accent:#176A91;--gold:#D1A35B;--line:#DCE6EC;--footer:#123247}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--body);font:16px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC","Noto Sans CJK SC",sans-serif;overflow-x:hidden}a{color:inherit;text-decoration:none}a:hover{color:var(--accent)}a:focus-visible,button:focus-visible{outline:3px solid var(--gold);outline-offset:3px}button{font:inherit;cursor:pointer}img{display:block;max-width:100%;height:auto;object-fit:contain;object-position:center center}p{margin:0 0 1em}h1,h2,h3{color:var(--ink);line-height:1.35;margin:0 0 .65em;overflow-wrap:anywhere}h1{font-size:30px}h2{font-size:23px}h3{font-size:18px}.shell{width:min(1120px,calc(100% - 48px));margin-inline:auto;min-width:0}.site-header{position:relative;background:#fff;border-bottom:1px solid var(--line);z-index:3}.brand-bar{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:10px;min-width:0;font-weight:800;font-size:19px;line-height:1.15;color:var(--ink);white-space:nowrap}.brand small{display:block;color:var(--muted);font-size:10px;letter-spacing:2px;margin-top:6px}.logo{max-width:140px;max-height:34px;width:auto;height:auto;flex-shrink:1}.top-links{display:flex;align-items:center;gap:24px;white-space:nowrap;font-size:14px}.outline-btn,.primary-btn,.secondary-btn{display:inline-flex;align-items:center;justify-content:center;padding:8px 18px;min-height:44px;border-radius:8px;font-size:14px;font-weight:650;transition:background .15s,color .15s}.outline-btn,.secondary-btn{border:1px solid var(--accent);color:var(--accent)}.primary-btn{background:var(--accent);color:#fff;border:1px solid var(--accent)}.primary-btn:hover{background:#104e70;color:#fff}.secondary-btn:hover,.outline-btn:hover{background:var(--bluewash)}.nav-band{height:46px;background:var(--bluewash);border-top:1px solid var(--line)}.nav-band-inner{display:flex;align-items:stretch;gap:24px;overflow-x:auto;overscroll-behavior-x:contain;scrollbar-width:thin;height:46px}.nav-band a{display:inline-flex;align-items:center;white-space:nowrap;font-size:14px;min-height:44px;border-bottom:2px solid transparent}.nav-band a[aria-current=page]{font-weight:700;color:var(--accent);border-color:var(--accent)}.menu-toggle,.mobile-menu,.mobile-bottom{display:none}.homepage{padding-top:30px}.eyebrow,.section-count{font-size:12px;font-weight:750;letter-spacing:1.6px;color:var(--accent);display:block;margin-bottom:14px}.home-hero{padding:32px 0 0}.home-hero h1{font-size:30px;max-width:820px}.home-hero>p{max-width:780px}.actions{display:flex;flex-wrap:wrap;gap:12px;margin:20px 0 26px}.banner-slot{width:100%;max-width:1120px;max-height:280px;background:var(--sand);border:1px solid var(--line);border-radius:12px;display:flex;align-items:center;justify-content:center;min-width:0}.banner-slot:empty{display:none}.banner-image{max-height:280px;width:auto;max-width:100%;height:auto}.home-section{margin:56px 0;min-width:0}.section-heading{margin-bottom:20px}.section-heading p{max-width:760px;color:var(--muted)}.four-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.topic-card,.story-card,.site-notes .three-grid article{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px;min-width:0;box-shadow:0 5px 18px #17304408}.topic-card{display:flex;flex-direction:column}.topic-card p{font-size:15px;flex:1}.text-link{display:inline-flex;align-items:center;min-height:44px;color:var(--accent);font-weight:700;font-size:14px}.text-link:after{content:' →';margin-left:5px}.life-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:20px;align-items:start}.life-main,.life-side article{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px;min-width:0}.life-side{display:grid;gap:20px;min-width:0}.card-image{max-height:170px;width:auto;height:auto;margin:0 auto 16px;max-width:100%}.life-main .card-image{max-height:240px}.trip-panel{background:var(--bluewash);border-radius:12px;padding:30px;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(280px,.85fr);gap:28px;align-items:center}.trip-panel p{max-width:640px}.fact-row{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 20px}.fact-row span{padding:6px 10px;border-radius:8px;border:1px solid #bed7e3;font-size:14px}.feature-image{max-width:100%;max-height:240px;width:auto;height:auto;margin-inline:auto}.culture-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:30px;align-items:center}.culture-layout>.culture-list{display:grid;gap:14px}.culture-list article{padding:20px;border-bottom:1px solid var(--line);background:#fff}.three-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.story-card.no-image{background:var(--bluewash);min-height:190px}.tide-panel{background:var(--sand);border:1px solid #ede0c7;border-radius:12px;padding:30px;display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.6fr);gap:22px;align-items:center}.tide-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.tide-list span{border-left:3px solid var(--gold);padding:8px 12px;background:#fff;border-radius:4px;font-size:14px}.feature-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-bottom:18px}.feature-list article{display:flex;gap:18px;border-top:1px solid var(--line);padding:20px 0}.feature-num{font-size:27px;color:var(--accent);font-weight:800}.quick-index{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.5fr);gap:30px;padding:30px;border:1px solid var(--line);border-radius:12px;background:#fff}.quick-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 18px}.quick-links a{padding:10px 0;min-height:44px;border-bottom:1px solid var(--line);color:var(--accent)}.mobile-reading{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.6fr);gap:30px;align-items:center;background:var(--bluewash);padding:30px;border-radius:12px}.app-visual{display:grid;justify-items:center;gap:8px;min-width:0}.app-image{max-width:240px;max-height:340px;width:auto;height:auto}.brand-icon{max-width:48px;max-height:48px}.site-notes-bottom{margin-top:18px;padding:18px;background:var(--sand);border-radius:10px}.site-notes-bottom a{color:var(--accent);text-decoration:underline}.about-end{padding:34px;background:#fff;border-left:4px solid var(--gold);border-radius:10px}.about-end p{max-width:760px}.inner-page{padding:26px 0 56px}.crumb{font-size:14px;color:var(--muted);margin-bottom:32px}.crumb a{color:var(--accent)}.crumb span{padding:0 10px}.inner-heading{padding:0 0 24px;border-bottom:1px solid var(--line)}.inner-heading p{max-width:760px;font-size:17px}.inner-visual{min-width:0;margin:24px 0 0;max-width:520px}.inner-visual:empty{display:none}.article-column{max-width:760px;margin-top:24px}.article-section{padding:23px 0;border-bottom:1px solid var(--line)}.article-section p{max-width:760px}.related{margin-top:44px;padding:22px 26px;background:var(--bluewash);border-radius:12px}.related-links{display:flex;gap:10px;flex-wrap:wrap}.related-links a{background:#fff;border:1px solid var(--line);padding:9px 14px;min-height:44px;border-radius:8px;color:var(--accent)}.faq-list{max-width:800px;display:grid;gap:14px;margin-top:26px}.faq-card{background:#fff;padding:20px 24px;border:1px solid var(--line);border-radius:12px}.faq-card h2{font-size:19px}.index-groups{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin:25px 0}.index-group{padding:22px;border:1px solid var(--line);background:#fff;border-radius:12px}.index-links{display:grid;gap:8px}.index-links a{display:grid;gap:0;border-bottom:1px solid var(--line);padding:9px 0;min-height:44px}.index-links strong{color:var(--accent)}.index-links span{font-size:14px;color:var(--muted)}.site-footer{background:var(--footer);color:#edf6fc;font-size:13px;padding:40px 0 20px}.site-footer a{color:#edf6fc;min-height:36px;display:inline-flex;align-items:center}.site-footer a:hover{color:#e8bb70}.footer-intro{display:grid;grid-template-columns:minmax(0,220px) minmax(0,1fr);gap:40px;align-items:start;padding-bottom:26px;border-bottom:1px solid #ffffff29}.footer-intro p{max-width:760px}.footer-brand{font-size:19px!important;font-weight:800;white-space:nowrap}.footer-brand span{display:block;font-size:10px;letter-spacing:2px}.footer-logo{max-width:130px;max-height:30px;width:auto;height:auto;margin-top:6px}.footer-groups{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;padding:25px 0}.footer-groups section{display:flex;flex-direction:column;min-width:0}.footer-groups h2{font-size:16px;color:#fff}.footer-bottom{border-top:1px solid #ffffff29;padding-top:15px;color:#c9dce9}
@media(max-width:1050px){.top-links{gap:13px}.nav-band-inner{gap:17px}.four-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.trip-panel{grid-template-columns:minmax(0,1fr) minmax(250px,.75fr)}}
@media(max-width:767px){body{font-size:15px;line-height:1.75;padding-bottom:calc(56px + env(safe-area-inset-bottom))}.shell{width:calc(100% - 32px)}h1,.home-hero h1{font-size:25px}h2{font-size:21px}h3{font-size:17px}.brand-bar{height:60px}.brand{font-size:17px;gap:7px}.logo{max-width:96px;max-height:30px}.top-links,.nav-band{display:none}.menu-toggle{display:inline-flex;align-items:center;justify-content:center;min-width:70px;min-height:44px;background:#fff;border:1px solid var(--line);border-radius:8px;color:var(--accent);font-size:14px;gap:5px}.mobile-menu:not([hidden]){display:block;position:absolute;top:60px;left:0;right:0;background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);box-shadow:0 12px 18px #17304419;z-index:9}.mobile-menu-body{max-height:calc(100dvh - 128px - env(safe-area-inset-bottom));overflow-y:auto;overscroll-behavior:contain;padding:14px 16px 22px}.mobile-menu-body section{margin:0 0 13px}.mobile-menu-body h2{font-size:14px;color:var(--muted);margin:0 0 5px}.menu-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:5px}.menu-grid a{min-height:44px;display:flex;align-items:center;padding:8px 12px;background:var(--bg);border-radius:6px;font-size:14px;overflow-wrap:anywhere}.menu-grid a[aria-current=page]{background:var(--bluewash);color:var(--accent);font-weight:700}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;height:calc(56px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);z-index:5;background:#fff;border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(5,minmax(0,1fr));box-shadow:0 -3px 15px #1730440b}.mobile-bottom a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:12px;min-height:44px;color:var(--muted)}.mobile-bottom a[aria-current=page]{color:var(--accent);font-weight:700}.bottom-dot{width:10px;height:10px;border:2px solid currentColor;border-radius:3px}.homepage{padding-top:18px}.home-hero{padding-top:16px}.home-section{margin:38px 0}.banner-slot{max-height:190px}.banner-image{max-height:190px}.four-grid,.three-grid,.life-layout,.culture-layout,.feature-list,.quick-index,.mobile-reading,.trip-panel,.tide-panel,.index-groups{grid-template-columns:minmax(0,1fr)}.life-main,.life-side article,.topic-card,.story-card,.site-notes .three-grid article{padding:17px}.life-side{gap:14px}.trip-panel,.tide-panel,.mobile-reading,.quick-index{padding:18px;gap:20px}.card-image,.life-main .card-image,.feature-image{max-height:190px}.tide-list{grid-template-columns:minmax(0,1fr)}.app-image{max-height:300px}.mobile-reading .actions{margin-bottom:0}.footer-intro{grid-template-columns:minmax(0,1fr);gap:15px}.footer-groups{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.footer-bottom{padding-bottom:12px}.inner-page{padding-top:18px}.inner-heading p{font-size:15px}.related{padding:18px}.faq-card{padding:17px}.faq-card h2{font-size:17px}}
@media(max-width:359px){.brand{font-size:15px}.logo{max-width:75px}.quick-links{grid-template-columns:minmax(0,1fr)}.footer-groups{gap:10px}.menu-grid a{padding:7px}.actions a{max-width:100%}}
@media(min-width:768px) and (max-width:1100px){.banner-slot{max-height:230px}.banner-image{max-height:230px}.life-layout{grid-template-columns:minmax(0,1.6fr) minmax(0,1fr)}}

/* Images are optional; collapse visual areas completely when originals are absent. */
.banner-slot:not(:has(img)),.inner-visual:not(:has(img)),.app-visual:not(:has(img)),.trip-panel>div:not(:has(img)):empty,.tide-panel>div:not(:has(img)):empty{display:none}.trip-panel:not(:has(img)),.tide-panel:not(:has(img)),.mobile-reading:not(:has(img)){grid-template-columns:minmax(0,1fr)}