@charset "UTF-8";
/* 活動別の入口、確認先付きチェック、磯・風の比較図。 */
.coast-title{text-wrap:balance}
.activity-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.activity-card{display:flex;align-items:center;gap:20px;padding:27px;background:#eef5f1;border:1px solid var(--line);border-radius:14px}
.activity-card:hover{border-color:var(--blue);background:#e8f2ed}
.activity-card>span:nth-child(2){flex:1;min-width:0}.activity-card strong{display:block;font-size:20px;line-height:1.7}.activity-card>span>span{display:block;font-size:13px;color:var(--muted);margin-top:7px}
.activity-symbol{display:grid;place-items:center;width:52px;height:52px;flex-shrink:0;border-radius:50%;background:#fff}.activity-symbol .icon{width:29px;height:29px;color:var(--blue)}
.activity-entry{padding-block:34px 55px}.activity-intro{padding-bottom:35px}.activity-section{padding-block:36px 48px;border-top:1px solid var(--line)}
.activity-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin:25px 0 35px}.activity-steps>div{border-left:2px solid #a6cabc;padding-left:19px}.activity-steps>div>span{font-family:Arial,sans-serif;color:var(--blue);font-size:24px}.activity-steps h3{font-size:18px;margin:7px 0}.activity-steps p{font-size:14px;color:var(--muted)}.activity-reading{font-size:17px;margin-bottom:18px}
.activity-bridge{padding:25px;background:var(--mint);border-radius:12px;margin-bottom:35px}.activity-bridge h2{font-size:20px;margin:8px 0 10px}.activity-bridge>p:not(.eyebrow){font-size:14px;color:var(--muted)}.activity-bridge>div{display:flex;gap:15px 25px;flex-wrap:wrap;margin-top:17px}.activity-bridge a{font-size:14px;text-decoration:underline;text-underline-offset:4px}
.activity-selector{display:flex;gap:12px;flex-wrap:wrap;margin-top:25px}.activity-selector a{display:flex;gap:10px;align-items:center;border:1px solid var(--line);padding:12px 23px;border-radius:9px;background:#fff;font-weight:700}.activity-selector a[aria-current=page]{background:var(--deep);color:white;border-color:var(--deep)}
.page-heading>.check-storage-note{font-size:12px;margin-top:15px}.check-guide-link{display:block;margin-top:18px;font-size:13px;text-decoration:underline}.check-activity-label{font-size:13px;margin-bottom:22px;color:var(--muted)}
.check-entry{border-top:1px solid var(--line);background:#fff}.check-entry:last-child{border-bottom:1px solid var(--line)}.check-entry .check-item{border:0;padding-bottom:10px}.check-entry .check-item:first-of-type{border:0}.check-entry:has(input:checked){background:#f0f7f1}.check-entry .check-item{background:transparent}
.check-links{display:flex;flex-wrap:wrap;gap:7px 15px;padding:0 16px 18px 55px;align-items:baseline}.check-links>span{font-size:11px;color:var(--muted)}.check-links>a{font-size:12px;text-decoration:underline;text-underline-offset:4px;color:var(--blue);line-height:1.9}
.coast-figure{margin:0 0 25px;padding:24px;border:1px solid var(--line);border-radius:16px;background:#fff}.coast-figure-heading{display:flex;flex-direction:column;gap:6px;margin-bottom:20px}.coast-figure-heading>span{font-size:11px;color:var(--blue);font-weight:700;letter-spacing:.08em}.coast-figure-heading>strong{font-size:20px;line-height:1.8}
.coast-panels{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.coast-three{grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.coast-panel{min-width:0}.coast-panel svg{width:100%;height:auto;border-radius:12px}.coast-panel svg text,.visual-pool svg text,.visual-wind svg text{font-family:var(--font);font-size:21px;font-weight:700;fill:var(--ink)}.coast-panel h3{font-size:15px;margin:13px 0 7px}.coast-panel p{font-size:13px;line-height:1.9;color:var(--muted)}.coast-figure figcaption{font-size:12px;line-height:1.9;color:var(--muted);margin-top:20px;padding-top:15px;border-top:1px solid var(--line)}
.coast-guide .lesson-key{font-size:19px;font-weight:700;color:var(--ink);border-left:3px solid #8ebcaf;padding-left:16px;margin-bottom:18px}.coast-guide .lesson-references{font-size:12px}.coast-guide .lesson-deeper p{font-size:14px}
@media(max-width:1100px){.coast-panels{grid-template-columns:1fr}.coast-panel+.coast-panel{border-top:1px solid var(--line);padding-top:20px}.activity-card{gap:14px;padding:22px}.activity-card strong{font-size:18px}}
@media(max-width:760px){.activity-cards,.activity-steps{grid-template-columns:1fr}.activity-card{padding:20px;gap:13px}.activity-symbol{width:42px;height:42px}.activity-card strong{font-size:17px}.activity-card>span>span{font-size:12px}.activity-entry{padding-block:20px 35px}.activity-section{padding-block:26px 35px}.activity-steps{gap:19px}.activity-steps>div{display:grid;grid-template-columns:35px 1fr;gap:3px 12px}.activity-steps>div>span{grid-row:span 2}.activity-steps h3{margin:0;font-size:17px}.activity-steps p{font-size:13px}.activity-selector a{padding:10px 17px;font-size:14px}.check-links{padding:0 7px 16px 41px;gap:5px 12px}.check-links>span{width:100%}.activity-bridge{padding:21px}.activity-bridge h2{font-size:18px}.coast-figure{padding:16px}.coast-figure-heading>strong{font-size:18px}.coast-guide .lesson-key{font-size:17px}.coast-panel h3{font-size:16px}.coast-panel p{font-size:14px}}
@media print{.activity-selector,.check-storage-note,.check-links,.activity-bridge{display:none!important}.check-entry{break-inside:avoid}.check-entry .check-item{padding:3mm 0}.coast-figure{break-inside:avoid;padding:4mm}.coast-panels{grid-template-columns:1fr 1fr}.coast-three{grid-template-columns:repeat(3,1fr)}.coast-panel+.coast-panel{border:0;padding:0}.coast-guide .lesson-section{break-inside:auto}.check-activity-label{font-size:10pt;margin-bottom:4mm}}
/* お問い合わせ・方針ページ。要点と本文を読み分けられる構成にする。 */
.policy-nav{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:28px}
.policy-nav a{border:1px solid var(--line);border-radius:30px;padding:8px 16px;font-size:13px;background:#fff}
.policy-nav a[aria-current=page]{background:var(--deep);color:#fff;border-color:var(--deep)}
.policy-nav a:hover{text-decoration:underline;text-underline-offset:4px}
.policy-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-bottom:36px}
.policy-cards>a{display:flex;flex-direction:column;align-items:flex-start;gap:10px;padding:22px 20px;background:#eef5f1;border:1px solid var(--line);border-radius:12px}
.policy-cards>a:hover{border-color:var(--blue)}
.policy-cards .icon{width:27px;height:27px;color:var(--blue)}
.policy-cards strong{font-size:15px;line-height:1.9}
.policy-cards span{font-size:13px;line-height:1.9;color:var(--muted)}
.policy-summary{display:flex;gap:18px;padding:24px;background:var(--mint);border-radius:12px;margin-bottom:34px}
.policy-summary>.icon{width:28px;height:28px;flex-shrink:0;color:var(--blue)}
.policy-summary strong{display:block;font-size:17px;margin-bottom:8px}
.policy-content .policy-summary p{font-size:14px;line-height:2}
.policy-data{margin:22px 0;border-top:1px solid var(--line)}
.policy-data>div{display:grid;grid-template-columns:150px minmax(0,1fr);gap:24px;padding:20px 0;border-bottom:1px solid var(--line)}
.policy-data dt{font-size:14px;font-weight:700}
.policy-data dd{font-size:15px;line-height:2;color:#355767;margin:0}
.policy-content .policy-small{font-size:13px;line-height:1.9;color:var(--muted);margin-top:17px}
.policy-small a,.policy-related a,.contact-emergency a{text-decoration:underline;text-underline-offset:4px}
.contact-desk{border:1px solid var(--line);border-radius:14px;padding:28px;background:#fff}
.contact-desk .eyebrow{font-size:12px;color:var(--blue);margin-bottom:10px}
.contact-action{margin-top:23px;max-width:100%;font-size:15px}
.contact-steps{list-style:none;counter-reset:contact-step;padding:0;margin:22px 0}
.contact-steps>li{position:relative;counter-increment:contact-step;padding:15px 0 15px 51px;border-bottom:1px solid var(--line)}
.contact-steps>li::before{content:counter(contact-step,decimal-leading-zero);position:absolute;left:0;top:16px;color:var(--blue);font-weight:700;font-size:16px}
.contact-steps strong{display:block;font-size:16px;margin-bottom:5px}
.contact-steps span{display:block;font-size:14px;line-height:1.9;color:var(--muted)}
.contact-emergency{display:flex;gap:17px;border-left:3px solid #bc7950;padding:23px;background:#f8f0e6;border-radius:0 10px 10px 0}
.contact-emergency>.icon{width:26px;height:26px;flex-shrink:0;color:#895a37}
.policy-content .contact-emergency h2{font-size:17px;margin-bottom:10px}
.policy-content .contact-emergency p{font-size:14px}
.policy-example{padding:20px 24px;margin:22px 0;background:#f0f4ef;border-radius:10px}
.policy-example>span{font-size:12px;font-weight:700;color:var(--muted)}
.policy-content .policy-example p{margin-top:7px;font-size:14px;overflow-wrap:anywhere}
.policy-example a{text-decoration:underline;text-underline-offset:4px}
.policy-related{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:23px}
.policy-related a{display:flex;gap:8px;align-items:center;font-size:14px}
.policy-related .icon{width:17px;height:17px}
@media(max-width:760px){.policy-nav{gap:7px}.policy-nav a{padding:7px 11px;font-size:12px}.policy-cards{grid-template-columns:1fr;gap:12px;margin-bottom:27px}.policy-cards>a{display:grid;grid-template-columns:30px 1fr;gap:4px 13px;padding:18px}.policy-cards .icon{grid-row:span 2}.policy-cards strong{font-size:15px}.policy-summary{padding:20px;gap:12px}.policy-data>div{grid-template-columns:1fr;gap:8px}.contact-desk{padding:20px}.contact-action{font-size:13px;padding:13px 16px}.contact-steps>li{padding-left:40px}.contact-emergency{padding:18px;gap:11px}.policy-content .contact-emergency h2{font-size:16px}.policy-example{padding:18px}.policy-related{flex-direction:column}}
/* 潮の満ち引きの記事専用。比較図と補足は狭い画面で縦に並べる。 */
.tide-guide{min-width:0}
.tide-guide .tide-visual{margin:0 0 24px;padding:24px;border:1px solid var(--line);border-radius:16px;background:#fff}
.tide-figure-heading{display:flex;gap:12px;align-items:baseline;margin-bottom:20px;flex-wrap:wrap}
.tide-figure-heading>span{font-size:12px;color:var(--blue);font-weight:700;letter-spacing:.04em}
.tide-figure-heading>strong,.tide-figure-heading>h2{font-size:19px;line-height:1.7;margin:0}
.tide-panels{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.tide-panel{min-width:0}
.tide-panel h3{font-size:16px;margin:0 0 12px;line-height:1.8}
.tide-visual svg{display:block;width:100%;height:auto;border-radius:12px}
.tide-visual svg text{font-family:var(--font);font-size:22px;font-weight:600;fill:var(--ink)}
.tide-visual svg text.tide-svg-small{font-size:20px;font-weight:400}
.tide-guide .tide-panel p{font-size:14px;line-height:1.9;color:#355767;margin-top:12px}
.tide-visual figcaption{font-size:12px;line-height:1.9;color:var(--muted);margin-top:20px;padding-top:15px;border-top:1px solid var(--line)}
.tide-control{margin-top:20px;padding:17px 20px;background:#edf5f2;border-radius:10px;display:grid;gap:12px}
.tide-control[hidden]{display:none!important}
.tide-control label{font-size:14px;font-weight:700}
.tide-control input{width:100%;min-width:0;accent-color:var(--blue);height:28px;cursor:pointer}
.tide-range-row{display:flex;align-items:center;gap:15px}
.tide-range-row>span{font-size:13px;white-space:nowrap}
.tide-control output{font-size:14px;line-height:1.8;color:var(--ink)}
.tide-example-label{display:inline-block;background:#f5eedf;color:#755025;font-size:12px;padding:7px 12px;border-radius:6px;margin-bottom:16px;line-height:1.8}
.tide-reading-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:18px}
.tide-guide .tide-reading-steps p{padding:13px 12px;background:#f4f7f4;border-radius:8px;line-height:1.8;margin:0}
.tide-reading-steps strong{display:block;font-size:14px}
.tide-reading-steps span{display:block;font-size:13px;color:var(--muted);margin-top:5px}
.tide-route-panels{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.tide-route-panels svg text{font-size:27px}
.tide-guide .lesson-section{margin-bottom:48px}
.tide-guide .lesson-section>.lesson-key{font-size:19px;font-weight:700;line-height:1.9;color:var(--ink);border-left:3px solid #8ebcaf;padding:10px 0 10px 17px;margin-bottom:18px}
.lesson-deeper{margin-top:21px;padding:17px 20px;border:1px solid var(--line);border-radius:10px;background:#f3f6f1}
.lesson-deeper summary{cursor:pointer;font-size:14px;font-weight:700;line-height:1.9}
.lesson-deeper p{margin-top:14px;color:#355767;font-size:14px;line-height:2.1}
.tide-guide .lesson-section>.lesson-references{font-size:12px;color:var(--muted);margin-top:17px}
.lesson-references a{display:inline-block;padding:3px 9px;color:var(--blue);text-decoration:underline;text-underline-offset:3px}
.tide-official-link{margin-top:20px;font-size:14px}
@media(max-width:1100px){.tide-panels,.tide-route-panels{grid-template-columns:1fr}.tide-panel+.tide-panel{padding-top:18px;border-top:1px solid var(--line)}.tide-reading-steps{grid-template-columns:1fr}.tide-reading-steps p{display:flex;gap:12px;align-items:baseline;flex-wrap:wrap}.tide-reading-steps span{margin-top:0}}
@media(max-width:760px){.tide-guide .tide-visual{padding:16px}.tide-figure-heading{gap:4px 10px;margin-bottom:16px}.tide-figure-heading>strong{font-size:17px}.tide-panels{gap:20px}.tide-guide .lesson-section>.lesson-key{font-size:17px}.tide-control{padding:14px}.tide-control output{font-size:13px}.lesson-deeper{padding:15px}.tide-official-link{font-size:13px;max-width:100%}.tide-visual svg text.tide-svg-small{font-size:23px}}
@media print{.tide-guide .tide-visual{padding:5mm;break-inside:avoid}.tide-control{display:none}.tide-panels{grid-template-columns:1fr 1fr}.tide-route-panels{grid-template-columns:repeat(3,1fr)}.tide-panel+.tide-panel{padding-top:0;border:0}.tide-reading-steps{grid-template-columns:repeat(3,1fr)}.tide-guide .lesson-section{break-inside:auto}.tide-visual figcaption{font-size:9pt}.lesson-deeper{break-inside:avoid}}
/* 記事・教材ページの共通レイアウト */
/* 閲覧者向けサイトマップ */
.sitemap-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;align-items:start;padding-bottom:65px}.sitemap-group{background:#fff;border:1px solid var(--line);border-radius:14px;padding:27px 30px}.sitemap-group h2{display:flex;align-items:center;gap:12px;font-size:22px;padding-bottom:16px;border-bottom:1px solid var(--line)}.sitemap-group h2>.icon{color:var(--blue)}.sitemap-group ul{list-style:none;padding:0;margin:9px 0 0}.sitemap-group li+li{border-top:1px solid #edf2ef}.sitemap-group li>a{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:13px 0;font-size:15px;line-height:1.9}.sitemap-group li>a:hover{color:var(--blue)}.sitemap-group li>a>.icon{width:18px;height:18px}

/* 運営元の基本情報。スマートフォンでは項目名と内容を縦に並べる。 */
.operator-profile{margin:24px 0 28px;border-top:1px solid var(--line)}.operator-profile>div{display:grid;grid-template-columns:180px minmax(0,1fr);gap:24px;padding:19px 0;border-bottom:1px solid var(--line)}.operator-profile dt{font-size:14px;font-weight:700}.operator-profile dd{margin:0;font-size:16px;line-height:2;color:#355767;overflow-wrap:anywhere}

.interactive .svg-label{font-size:26px}.interactive .svg-small{font-size:22px}.interactive.diagram-food .svg-small{font-size:18px}
.page-heading{padding-top:43px;padding-bottom:42px}.page-heading h1{font-size:42px;line-height:1.65;margin:16px 0 18px;letter-spacing:.035em}.page-heading>p:not(.eyebrow){font-size:16px;color:var(--muted);line-height:2}.page-heading>.button{margin-top:24px}.category-nav{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}.category-nav a{display:flex;align-items:center;gap:9px;border:1px solid var(--line);border-radius:30px;background:#fff;padding:9px 20px;font-size:14px;font-weight:700}.category-nav a:hover{background:var(--mint)}.category-nav .icon{width:19px}.catalog-section{padding-top:27px;padding-bottom:40px}.catalog-section+.catalog-section{border-top:1px solid var(--line);margin-top:5px}.catalog-section .section-heading{margin-bottom:23px}.mini-banner{display:flex;justify-content:space-between;gap:24px;align-items:center;padding:30px 36px;background:var(--mint);border-radius:14px;margin-top:10px;margin-bottom:65px}.mini-banner h2{font-size:23px}.mini-banner p{font-size:14px;color:var(--muted);margin-top:8px}
.article-header{padding-top:40px;padding-bottom:38px;max-width:970px}.article-header h1{font-size:39px;margin:14px 0 18px;line-height:1.7}.article-intro{font-size:17px;color:var(--muted);max-width:780px;line-height:2}.article-meta{display:flex;gap:21px;flex-wrap:wrap;align-items:center;font-size:12px;color:var(--muted);margin-top:23px}.article-meta>span{display:flex;align-items:center;gap:5px}.article-meta .icon{width:15px;height:15px}.reader-tools{display:flex;gap:10px;margin-top:22px}.reader-tools .small-button{font-size:13px}.article-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:55px;max-width:1070px;align-items:start}.article-toc{position:sticky;top:28px;font-size:13px;border-top:2px solid #b5ccca;padding-top:20px}.article-toc>p{font-weight:700;font-size:14px;margin-bottom:15px}.article-toc>a{display:block;padding:10px 0;border-bottom:1px solid var(--line);line-height:1.8}.article-toc>a:hover{color:var(--blue)}.toc-message{display:flex;align-items:flex-start;gap:10px;margin-top:25px;color:var(--muted);font-size:12px}.toc-message .icon{width:20px}.review-note{border-left:3px solid #c47740;background:#faf0e6;padding:18px 22px;border-radius:0 9px 9px 0;margin-bottom:25px;font-size:14px}.review-note strong{display:block;color:#885330;margin-bottom:5px}.review-note p{font-size:13px;color:#765b46;line-height:1.9}.article-visual{background:#fff;border:1px solid var(--line);border-radius:16px;padding:23px}.article-visual .diagram-controls{font-size:14px}.takeaway{background:#e9f3ee;border-radius:12px;padding:23px 26px;margin:24px 0 38px}.takeaway>span{font-size:12px;font-weight:700;display:block;color:#557466;margin-bottom:7px}.takeaway>strong{font-size:19px;line-height:1.9;display:block}.lesson-section{margin-bottom:40px}.lesson-title{display:flex;align-items:flex-start;gap:13px;margin-bottom:18px}.lesson-title>span{color:var(--blue);font-size:14px;font-family:Arial,sans-serif;line-height:2.8;letter-spacing:.07em;border-bottom:2px solid #b2dbd5}.lesson-title h2{font-size:23px}.lesson-section>p{font-size:16px;line-height:2.2;color:#355767}.lesson-section>p+p{margin-top:16px}.article-body rt{display:none}.article-body.show-ruby rt{display:ruby-text;font-size:.55em;letter-spacing:.05em}.think-box{background:#f4f2e9;border-radius:14px;padding:28px 30px;margin-bottom:33px}.think-box h2{font-size:22px;margin:8px 0 16px}.think-box>p:not(.eyebrow){font-size:16px;line-height:2}.think-box details{margin-top:20px;border-top:1px solid #dcd9c9;padding-top:14px}.think-box summary,.worksheet-guide summary{font-size:14px;font-weight:700;cursor:pointer}.think-box details p{font-size:14px;line-height:2;margin-top:14px}.teaching-note{padding:25px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:30px}.teaching-note h2{font-size:19px;display:flex;align-items:center;gap:10px;margin-bottom:13px}.teaching-note p{font-size:14px;color:var(--muted);line-height:2}.teaching-note .text-link{margin-top:17px}.source-box{padding-bottom:35px}.source-box h2{font-size:19px;margin-bottom:13px}.source-box>p{font-size:13px;line-height:1.9;color:var(--muted)}.source-box ul{list-style:none;padding:0;margin:20px 0}.source-box li{padding:10px 0}.source-box li>a{font-size:14px;color:var(--blue);text-decoration:underline;text-underline-offset:4px}.source-box li>span{display:block;font-size:12px;color:var(--muted);margin-top:4px}.source-box .caption a{text-decoration:underline}.related-section{padding-top:45px;padding-bottom:65px;border-top:1px solid var(--line);margin-top:25px}.related-section .article-grid{grid-template-columns:repeat(2,1fr)}.related-section .article-card{display:grid;grid-template-columns:45% 1fr}.related-section .card-visual{padding:9px;display:flex;align-items:center}.related-section .card-body{padding:20px}.related-section .card-body h3{font-size:17px}
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