:root{color-scheme:light;--bg: #f6fbfd;--bg2: #e4f3f8;--panel: #ffffff;--line: #cfe3ea;--fg: #0b2540;--fg2: #3b5670;--fg3: #556e85;--hot: #e0491f;--cold: #0d8fbd;--sand: #e8d9b0;--cloud: #aabfd4;--miyako: #17aacf;--miyako-deep: #0b7d9c;--miyako-tint: #dff5fa;--miyako-line: #b7e2ee;--glass: #ffffffee;--glass-line: #00000022;--veil: #0b2540aa;--shadow: #0b254026;--sk-mid: #b7d2dd;--chart-grid: #d5e3ea;--chart-band: #cfe3f2;--chart-past: #b3d0e8;--chart-mid: #8fb2d8;--chart-unknown: #7c93aa;--ship-cargo: #2b8a3e;--ship-tanker: #d9480f;--ship-passenger: #7048e8;--ship-fishing: #a86b00;--ship-tug: #c2255c;--ship-highspeed: #1971c2;--ship-sailing: #0c8599;--ship-pleasure: #9c36b5;--ship-other: #5c6f82;--font: "Hiragino Sans", "Noto Sans JP", "Yu Gothic UI", system-ui, -apple-system, sans-serif;--num: "SF Pro Display", "Segoe UI Variable", Inter, system-ui, sans-serif;--text: 1rem;--text-2: .875rem;--text-3: .8125rem;--lh: 1.6;--lh-note: 1.5;--num-size: 4.5rem;--delta-size: 1.375rem;--radius: 14px;--gap: 18px;--page-max: 430px;--col-left: 420px;--col-right-max: 760px;--cols-gap: 24px;--wide-pad: 32px}@media(min-width:600px){:root{--page-max: 600px}}@media(min-width:960px){:root{--page-max: 1200px;--entry-max: 960px;--map-col: calc(var(--entry-max) - var(--wide-pad) * 2 - var(--gap) * 2)}}*,*:before,*:after{box-sizing:border-box}html,body{max-width:100%;overflow-x:hidden}html{font-size:100%}body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--font);line-height:var(--lh);-webkit-font-smoothing:antialiased}img,canvas,svg,video{max-width:100%;height:auto}a{color:inherit}:focus-visible{outline:2px solid var(--miyako-deep);outline-offset:2px;border-radius:6px}.page{max-width:var(--page-max);margin:0 auto;padding:10px 0 96px;position:relative}.top{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:0 var(--gap)}.brand{display:inline-flex;align-items:center;min-height:44px;padding-right:8px;font-size:var(--text);letter-spacing:.08em;color:var(--miyako-deep);text-decoration:none}.chip{font-size:var(--text);color:var(--fg2);background:var(--panel);border:1px solid var(--line);border-radius:999px;padding:5px 9px;max-width:78%;text-align:right;line-height:var(--lh-note)}.top .brand{flex:0 0 auto}.head__bay{font-size:1.5rem;margin:0 var(--gap);font-weight:700;letter-spacing:.01em;min-width:0}.baytitle{display:flex;align-items:center;gap:4px;margin:6px var(--gap) 0}.baytitle .head__bay{margin:0}.star{flex:0 0 auto;width:44px;height:44px;display:grid;place-items:center;border:0;border-radius:12px;background:transparent;color:var(--fg3);font-size:1.375rem;line-height:1;font-family:inherit;cursor:pointer}.star--on{color:var(--miyako-deep)}.baypick{display:inline-flex;align-items:center;gap:6px;min-height:44px;padding:0 8px;border:0;border-radius:12px;background:transparent;color:inherit;font:inherit;font-size:1.5rem;font-weight:700;cursor:pointer;text-align:left}.baypick__caret{font-size:var(--text);color:var(--fg3)}.pickbay{position:fixed;inset:0;z-index:60}.pickbay__back{position:absolute;inset:0;background:var(--veil)}.pickbay__panel{position:absolute;left:50%;bottom:0;transform:translate(-50%);width:min(100%,var(--page-max));max-height:88dvh;overflow-y:auto;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius) var(--radius) 0 0;padding:12px var(--gap) 20px}.pickbay__panel:focus{outline:none}.pickbay__title{margin:0 0 6px;font-size:var(--text-2);color:var(--fg3)}.pickbay__row{display:flex;align-items:center;gap:8px;min-height:48px;padding:0 6px;border-bottom:1px solid var(--line);color:var(--fg);text-decoration:none;font-size:var(--text)}.pickbay__row--now{color:var(--miyako-deep);font-weight:700}.pickbay__mark{width:1em;flex:0 0 auto;color:var(--miyako-deep)}.pickbay__star{margin-left:auto;color:var(--miyako-deep)}.pickbay__close{margin-top:12px;width:100%;min-height:44px;border:1px solid var(--line);border-radius:12px;background:var(--panel);color:var(--fg);font:inherit;font-weight:700;cursor:pointer}.head__date{margin:4px var(--gap) 0;font-size:var(--text);color:var(--fg3)}.head__note{margin:6px var(--gap) 0;font-size:var(--text-2);color:var(--fg);font-weight:700}.head__back{font-size:var(--text-2);color:var(--fg3);text-decoration:none}.figure{margin:0}.figure__label{margin:4px var(--gap) 0;font-size:var(--text-2);color:var(--fg3)}.hero{margin:10px var(--gap) 0;display:flex;align-items:baseline;flex-wrap:wrap;gap:4px 10px}.figure__date{font-size:var(--text);font-weight:700;color:var(--fg2)}.figure__value{margin:0;font-family:var(--num);font-size:var(--num-size);line-height:1;font-weight:800;letter-spacing:-.02em;font-variant-numeric:tabular-nums}.figure__unit{font-size:var(--delta-size);color:var(--fg2)}.figure__diff{margin:6px var(--gap) 0;font-size:var(--delta-size);font-weight:700;font-variant-numeric:tabular-nums}.figure__diff--warm{color:var(--hot)}.figure__diff--cool{color:var(--cold)}.figure__diff--flat{color:var(--fg3)}.figure__streak{margin:4px var(--gap) 0;font-size:var(--text-2);font-weight:700;color:var(--fg2);font-variant-numeric:tabular-nums}.figure__basis{margin:2px var(--gap) 0;font-size:var(--text-3);color:var(--fg3)}.figure__sub{margin:6px var(--gap) 0;font-size:var(--text-2);color:var(--fg2)}.figure__aside{margin:6px var(--gap) 0;font-size:var(--text-2);color:var(--fg2);background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:8px 10px}.map{margin:12px var(--gap) 0;border-radius:var(--radius);overflow:hidden;background:var(--bg2);position:relative;display:block}.map__canvas{display:block;width:100%;height:auto;image-rendering:pixelated}.map__status{margin:0;padding:24px 16px;font-size:var(--text-2);color:var(--fg2);text-align:center}.map__lbl{position:absolute;left:10px;bottom:10px;font-size:var(--text-3);color:var(--fg);background:var(--glass);border-radius:8px;padding:4px 8px}.grad{margin:8px var(--gap) 0;height:6px;border-radius:3px}.legend{margin:4px var(--gap) 0}.legend__ends{display:flex;justify-content:space-between;margin:0;font-size:var(--text-2);color:var(--fg3);font-variant-numeric:tabular-nums}.legend__key{display:flex;align-items:center;flex-wrap:wrap;gap:4px 6px;margin:6px 0 0;font-size:var(--text-2);color:var(--fg3)}.legend__key .legend__swatch,.legend__key .legend__line{margin-left:6px}.legend__key .legend__swatch:first-child,.legend__key .legend__line:first-child{margin-left:0}.legend__swatch{flex:0 0 auto;width:12px;height:12px;border-radius:3px;border:1px solid var(--line)}.legend__note{margin:4px var(--gap) 0;font-size:var(--text-3);color:var(--fg3)}.legend .legend__note{margin-left:0;margin-right:0}.sk{display:inline-block;height:14px;width:70px;border-radius:7px;background:linear-gradient(90deg,var(--line),var(--sk-mid),var(--line));background-size:200% 100%;animation:sk-shimmer 1.4s infinite linear}.sk--wide{width:120px}.sk--num{width:56px;height:18px}@keyframes sk-shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}@media(prefers-reduced-motion:reduce){.sk{animation:none}}.baynav,.featurenav{display:flex;flex-wrap:wrap;gap:6px;margin:16px var(--gap) 0}.baynav__link,.featurenav__link,.featurenav__summary{display:inline-flex;align-items:center;min-height:44px;padding:12px 14px;border:1px solid var(--line);border-radius:999px;font-size:var(--text);text-decoration:none;color:var(--miyako-deep);background:var(--panel)}.featurenav__more{min-width:0}.featurenav__summary{cursor:pointer;list-style:none}.featurenav__summary::-webkit-details-marker{display:none}.featurenav__rest{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px}.baynav--strip{flex-wrap:nowrap;overflow-x:auto;margin:12px 0 0;padding:0 var(--gap) 4px;scroll-padding-inline:var(--gap);scroll-snap-type:x proximity;scrollbar-width:thin;-webkit-overflow-scrolling:touch}.baynav--strip .baynav__link{flex:0 0 auto;white-space:nowrap;scroll-snap-align:start}.baynav__link--now{background:var(--miyako-deep);color:var(--panel);border-color:var(--miyako-deep);font-weight:700}.credit{margin:22px var(--gap) 0;padding-top:10px;border-top:1px solid var(--line)}.credit__text,.credit__owner{margin:0;font-size:var(--text-3);line-height:var(--lh-note);color:var(--fg2);overflow-wrap:anywhere}.credit__owner{margin-top:4px}.credit__feedback{margin:0 0 4px;font-size:var(--text-3);line-height:var(--lh-note);color:var(--fg2);overflow-wrap:anywhere}.credit__feedback-link{display:inline-flex;align-items:center;min-height:44px;color:var(--fg2);text-decoration:underline;vertical-align:middle}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}.toast{position:fixed;left:50%;bottom:84px;transform:translate(-50%);z-index:40;margin:0;max-width:min(92vw,420px);padding:10px 16px;border-radius:999px;background:var(--panel);border:1px solid var(--line);color:var(--fg);font-size:var(--text-2);text-align:center;box-shadow:0 6px 24px var(--shadow)}.credit__maker{display:inline-flex;align-items:center;min-height:44px;gap:4px;color:var(--fg2);text-decoration:underline;vertical-align:middle}.credit__logo{width:1rem;height:1rem;flex:0 0 auto}.maker{display:flex;align-items:center;gap:10px;margin:6px 0 10px}.maker__logo{width:64px;height:64px;flex:0 0 auto}.maker__name{font-size:var(--text);font-weight:700;color:var(--fg)}.legend__line{flex:0 0 auto;width:12px;height:2px;border-radius:1px}.credit__doi{display:inline-flex;align-items:center;min-height:44px;color:var(--fg2);text-decoration:underline;vertical-align:middle}.credit__copernicus,.credit__aisstream,.credit__gebco,.credit__msil{margin-top:4px}.level{margin:12px var(--gap) 0}.level__steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:4px;margin:0;padding:0;list-style:none}.level__step{padding:6px 2px;border:1px solid var(--line);border-radius:8px;background:var(--panel);font-size:var(--text-3);line-height:var(--lh-note);color:var(--fg2);text-align:center;overflow-wrap:anywhere}.level__step--now{border-color:var(--miyako-deep);color:var(--fg);font-weight:700}.level__caption{margin:4px 0 0;font-size:var(--text-3);color:var(--fg3)}.fishing__head{padding:2px var(--gap) 0}.fishing__title{margin:0;font-size:1.75rem;font-weight:700;letter-spacing:.01em}.fishing__lead{margin:4px 0 0;font-size:var(--text);color:var(--fg2);line-height:var(--lh)}.fishing__h2{margin:20px var(--gap) 0;font-size:1.125rem;color:var(--fg)}.fishing__note{margin:8px var(--gap) 0;font-size:var(--text-3);color:var(--fg3);line-height:var(--lh-note)}.fishing__big{margin:8px var(--gap) 0;font-size:1.125rem;font-weight:700;color:var(--fg);line-height:var(--lh)}.fishing__cells{margin:14px var(--gap) 0;padding:8px 12px;border-radius:12px;border:1px solid var(--line);background:var(--panel);font-size:var(--text-2);color:var(--fg);line-height:var(--lh-note)}.fishing__sec{margin-top:6px}.fishing__chart{margin:8px var(--gap) 0}.fishing__chart svg{display:block;width:100%;height:auto}.chartbox__key{margin:4px var(--gap) 0;font-size:var(--text-2);color:var(--fg3)}.fishing__map{margin-top:12px}.caution{margin:10px var(--gap) 0;padding:8px 12px;border-radius:12px;border:1px solid var(--hot);background:var(--panel);font-size:var(--text-2);font-weight:700;color:var(--fg);line-height:var(--lh-note)}.baylist{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin:10px var(--gap) 0}.baylist__link{display:flex;flex-direction:column;justify-content:center;min-height:56px;padding:8px 12px;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);color:var(--fg);text-decoration:none}.baylist__name{font-size:var(--text);font-weight:700}.baylist__count{font-size:var(--text-3);color:var(--fg2)}.areasearch{margin:14px var(--gap) 0}.areasearch__label{display:block;font-size:var(--text-2);font-weight:700;color:var(--fg2)}.areasearch__input{display:block;box-sizing:border-box;width:100%;min-height:44px;margin-top:6px;padding:8px 12px;border:1px solid var(--miyako-line);border-radius:12px;background:var(--panel);color:var(--fg);font:inherit;font-size:var(--text)}.areasearch__count{margin:8px 0 0;font-size:var(--text-2);color:var(--fg2)}.areasearch__note{margin:8px 0 0;font-size:var(--text-3);color:var(--fg3);line-height:var(--lh-note)}.arearow{display:grid;grid-template-columns:auto auto 1fr;align-items:baseline;gap:2px 8px;min-height:44px;box-sizing:border-box;padding:8px 10px;margin-top:6px;border:1px solid var(--line);border-radius:12px;background:var(--panel);color:var(--fg);text-decoration:none}.fishing__sec>.arearow{margin-left:var(--gap);margin-right:var(--gap)}.arearow__name{font-size:var(--text);font-weight:700}.arearow__kind{font-size:var(--text-3);color:var(--fg2);border:1px solid var(--miyako-line);border-radius:999px;padding:0 8px}.arearow__temp{justify-self:end;font-size:var(--text-2);font-weight:700;color:var(--fg)}.arearow__place{grid-column:1 / -1;font-size:var(--text-3);color:var(--fg2);overflow-wrap:anywhere}.kindlist{margin:8px var(--gap) 0}.kindlist__group{margin-top:8px;border:1px solid var(--line);border-radius:var(--radius);background:var(--bg2)}.kindlist__summary{display:flex;align-items:center;min-height:44px;padding:0 14px;font-size:var(--text);font-weight:700;color:var(--fg);cursor:pointer}.kindlist__rows{padding:0 8px 8px}.baymap{margin:0 var(--gap)}.baymap__frame{position:relative;width:100%;border-radius:var(--radius);overflow:hidden;background:var(--bg2)}.baymap__canvas,.baymap__svg{position:absolute;inset:0;width:100%;height:100%}.baymap__canvas{image-rendering:pixelated}.baymap__svg{cursor:pointer}.baymap__legend{display:flex;flex-wrap:wrap;gap:4px 14px;margin-top:8px;font-size:var(--text-3);color:var(--fg2)}.baymap__key{display:inline-flex;align-items:center;gap:6px}.baymap__swatch{display:inline-block;width:18px;height:12px;border-radius:3px;box-sizing:border-box}.baymap__swatch--common{background:var(--miyako-tint);border:1px solid var(--miyako-deep)}.baymap__swatch--demarcated{background:var(--miyako-deep)}.baymap__swatch--fixed{border:2px solid var(--hot)}.baymap__swatch--port{width:10px;height:10px;border-radius:50%;background:var(--fg)}.baymap__tap{flex-basis:100%;color:var(--fg3)}.years{margin:12px var(--gap) 0}.years__title{margin:0;font-size:var(--text);color:var(--fg)}.years__table{width:100%;margin-top:6px;border-collapse:collapse;font-size:var(--text-3);color:var(--fg)}.years__table th,.years__table td{padding:6px 4px;border-bottom:1px solid var(--line);text-align:right;vertical-align:top}.years__table th:first-child,.years__table td:first-child{text-align:left}.years__table th{color:var(--fg2);font-weight:700}.years__table td:last-child{text-align:left}.profile{display:grid;grid-template-columns:max-content 1fr;gap:6px 12px;margin:8px var(--gap) 0;font-size:var(--text-2);color:var(--fg)}.profile dt{color:var(--fg2);font-weight:700}.profile dd{margin:0;overflow-wrap:anywhere}.landbars{margin:8px var(--gap) 0}.landbars__row{display:grid;grid-template-columns:7.5em 1fr auto;align-items:center;gap:8px;min-height:28px;font-size:var(--text-2);color:var(--fg)}.landbars__track{height:12px;border-radius:6px;background:var(--bg2);overflow:hidden}.landbars__fill{display:block;height:100%;background:var(--miyako-deep)}.landbars__value{font-family:var(--num);white-space:nowrap}.prose{margin:12px var(--gap) 0;font-size:var(--text);color:var(--fg2);line-height:1.8}.prose h2{font-size:1.125rem;color:var(--fg);margin:18px 0 6px}.prose ul{padding-left:1.2em;margin:6px 0}.prose a{overflow-wrap:anywhere}@media(min-width:720px){.baylist{grid-template-columns:repeat(5,minmax(0,1fr))}}