:root {
  --paper: #f7f8f5;
  --surface: #ffffff;
  --ink: #171b18;
  --muted: #687169;
  --line: #dce3dc;
  --line-strong: #c8d2c9;
  --green: #0b7444;
  --green-dark: #075734;
  --green-soft: #e8f1ea;
  --green-wash: #f0f5f1;
  --warm: #f2efe7;
  --max-width: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  margin: 0;
  overflow-x: hidden;
  background: #f7faf7;
  color: var(--ink);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  letter-spacing: 0;
}
body::before { content: ""; position: fixed; inset: -3vh -3vw; z-index: -1; pointer-events: none; background: url("/home-sky-clouds.png") center top / cover no-repeat; animation: cloud-drift 26s ease-in-out infinite alternate; opacity: .92; }
@keyframes cloud-drift { from { transform: translate3d(-1.2vw, -1vh, 0) scale(1.03); } to { transform: translate3d(1.2vw, 1vh, 0) scale(1.06); } }
@media (prefers-reduced-motion: reduce) { body::before { animation: none; } }
button, input { font: inherit; letter-spacing: 0; }
button, a { -webkit-tap-highlight-color: transparent; }
[hidden] { display: none !important; }
.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; }
.prototype-container { width: min(calc(100% - 48px), var(--max-width)); margin: 0 auto; }
.section-label { margin: 0 0 12px; color: var(--green); font-size: 12px; font-weight: 650; letter-spacing: 0; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  padding: 10px max(24px, calc((100vw - var(--max-width)) / 2));
  border-bottom: 1px solid rgba(200, 210, 201, .78);
  background: rgba(255, 255, 255, .82);
  backdrop-filter: blur(14px) saturate(120%);
  -webkit-backdrop-filter: blur(14px) saturate(120%);
  box-shadow: none;
}
.brand { display: flex; align-items: center; gap: 12px; color: var(--ink); text-decoration: none; }
.brand-logo { width: 44px; height: 44px; border-radius: 50%; object-fit: cover; }
.brand-copy { display: grid; gap: 2px; }
.brand-copy strong { font-size: 15px; font-weight: 650; }
.brand-copy small { color: var(--muted); font-size: 11px; }
.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav a { color: #394139; font-size: 13px; text-decoration: none; transition: color .25s ease; }
.site-nav a:hover { color: var(--green); }
.site-nav .nav-upload { padding: 9px 14px; border: 1px solid var(--line-strong); border-radius: 8px; }

.prototype-hero { display: grid; align-items: center; min-height: 650px; border-bottom: 1px solid var(--line); background: rgba(247, 250, 247, .38); }
.hero-inner { display: grid; grid-template-columns: minmax(0, .75fr) minmax(420px, 1.25fr); align-items: center; gap: clamp(46px, 7vw, 100px); padding: 70px 0; }
.hero-copy { min-width: 0; }
.hero-inner h1 { max-width: 640px; margin: 0; font-size: clamp(48px, 6.4vw, 76px); font-weight: 560; line-height: 1.02; letter-spacing: 0; }
.hero-lead { max-width: 620px; margin: 24px 0 0; color: #344038; font-size: clamp(18px, 2.1vw, 25px); line-height: 1.6; }
.hero-cta { display: inline-flex; align-items: center; gap: 14px; margin-top: 30px; padding: 13px 18px; border-radius: 8px; background: var(--green); color: #fff; font-size: 13px; text-decoration: none; transition: background .25s ease, transform .25s ease; }
.hero-cta:hover { background: var(--green-dark); transform: translateY(-1px); }
.hero-cta span { font-size: 18px; line-height: 1; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 0; margin-top: 48px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.hero-meta span { padding: 15px 36px 0 0; }
.hero-meta span + span { padding-left: 36px; border-left: 1px solid var(--line); }
.hero-visual { position: relative; min-height: 430px; margin: 0; overflow: hidden; border-radius: 14px; background: var(--green-wash); }
.hero-visual img { width: 100%; height: 100%; min-height: 430px; object-fit: cover; transform: translateY(var(--hero-shift, 0px)); transition: transform 1.2s cubic-bezier(.22, .61, .36, 1); }
.hero-visual:hover img { transform: translateY(var(--hero-shift, 0px)) scale(1.02); }
.hero-visual::after { content: ""; position: absolute; inset: 18px; border: 1px solid rgba(255, 255, 255, .58); border-radius: 8px; pointer-events: none; }
.hero-visual figcaption { position: absolute; right: 28px; bottom: 26px; z-index: 1; color: #315941; font-size: 13px; }

.current-course-section, .archive-section { padding: 112px 0; background: rgba(250, 252, 249, .72); }
.archive-section { border-top: 1px solid var(--line); background: var(--surface); }
.editorial-heading { display: flex; align-items: end; justify-content: space-between; gap: 40px; margin-bottom: 58px; }
.editorial-heading h2, .workspace-heading h2 { margin: 0; font-size: clamp(32px, 4vw, 52px); font-weight: 530; line-height: 1.12; }
.editorial-heading > p { max-width: 390px; margin: 0 0 5px; color: var(--muted); font-size: 15px; line-height: 1.8; }

.grade-stories { border-top: 1px solid var(--line-strong); }
.grade-story { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr); min-height: 390px; border-bottom: 1px solid var(--line-strong); }
.grade-story:nth-child(even) .story-media { grid-column: 2; grid-row: 1; }
.grade-story:nth-child(even) .story-copy { grid-column: 1; grid-row: 1; padding-left: 0; padding-right: clamp(44px, 7vw, 96px); }
.story-media {
  position: relative;
  display: block;
  width: 100%;
  min-height: 390px;
  overflow: hidden;
  border: 0;
  border-radius: 0;
  background: #e9f0ea;
  color: var(--green-dark);
  text-align: left;
  cursor: pointer;
}
.story-media::after { content: ""; position: absolute; inset: 24px; border: 1px solid rgba(11, 116, 68, .18); pointer-events: none; transition: inset .55s cubic-bezier(.22, .61, .36, 1); }
.grade-story:not(.grade-story-empty) .story-media:hover::after { inset: 16px; }
.story-media-text { background: transparent; border-top: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); }
.story-media-text::after { display: none; }
.story-media-image { padding: 0; }
.story-media-fixed { border-radius: 12px; }
.story-media-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .65s cubic-bezier(.22, .61, .36, 1); }
.story-media-image:hover img { transform: scale(1.02); }
.story-media-小班 { background: #eef1ed; color: #657168; }
.story-media-中班 { background: #edf2ef; }
.story-media-大班 { background: #e5eee7; }
.media-caption { position: absolute; right: 28px; bottom: 28px; font-size: 12px; }
.media-mark { position: absolute; left: 28px; bottom: 28px; font-size: 12px; font-weight: 650; }
.story-copy { display: flex; flex-direction: column; justify-content: center; padding: 48px 0 48px clamp(44px, 7vw, 96px); }
.story-copy h3 { max-width: 520px; margin: 0; font-size: clamp(30px, 4.4vw, 58px); font-weight: 520; line-height: 1.12; overflow-wrap: anywhere; }
.story-copy > p:not(.section-label) { display: -webkit-box; max-width: 480px; margin: 22px 0 0; overflow: hidden; color: var(--muted); font-size: 14px; line-height: 1.9; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.story-stats { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 28px; color: #465047; font-size: 12px; }
.story-status { margin-top: 28px; color: var(--muted); font-size: 12px; }
.text-link { align-self: flex-start; margin-top: 40px; padding: 0 0 7px; border: 0; border-bottom: 1px solid var(--green); background: transparent; color: var(--green-dark); font-size: 13px; cursor: pointer; }
.text-link span { display: inline-block; margin-left: 8px; transition: transform .25s ease; }
.text-link:hover span { transform: translateX(4px); }
.grade-story-empty .story-media { cursor: default; }

.directory-tools { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-bottom: 34px; }
.age-filters { display: flex; gap: 4px; }
.age-filters button { padding: 8px 13px; border: 0; border-radius: 6px; background: transparent; color: var(--muted); cursor: pointer; }
.age-filters button[aria-pressed="true"] { background: var(--green-soft); color: var(--green-dark); }
.theme-search input { width: min(280px, 36vw); padding: 10px 0; border: 0; border-bottom: 1px solid var(--line-strong); border-radius: 0; outline: none; background: transparent; color: var(--ink); }
.theme-search input:focus { border-color: var(--green); }
.age-group { display: grid; grid-template-columns: 150px 1fr; border-top: 1px solid var(--line-strong); }
.age-label { display: flex; flex-direction: column; gap: 6px; padding: 28px 30px 28px 0; }
.age-label strong { font-size: 22px; font-weight: 550; }
.age-label small { color: var(--muted); font-size: 11px; }
.theme-grid { border-left: 1px solid var(--line); }
.theme-row { display: grid; grid-template-columns: 130px minmax(0, 1fr) 28px; align-items: center; width: 100%; min-height: 92px; padding: 18px 20px 18px 32px; border: 0; border-bottom: 1px solid var(--line); border-radius: 0; background: transparent; color: var(--ink); text-align: left; cursor: pointer; transition: background .25s ease; }
.theme-row:hover { background: var(--green-wash); }
.theme-month { color: var(--muted); font-size: 12px; }
.theme-name { display: grid; gap: 7px; }
.theme-name strong { font-size: 17px; font-weight: 520; }
.theme-name small { color: var(--muted); font-size: 11px; }
.theme-arrow { color: var(--green); transition: transform .25s ease; }
.theme-row:hover .theme-arrow { transform: translateX(4px); }
.empty-state { padding: 34px 0; color: var(--muted); line-height: 1.8; }

.theme-hero { min-height: 320px; display: grid; align-items: center; border-bottom: 1px solid var(--line); background: var(--green-soft); color: var(--ink); }
.theme-hero-inner { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 54px; padding: 80px 0 72px; }
.back-button, .back-link { margin: 0 0 40px; padding: 0 0 6px; border: 0; border-bottom: 1px solid var(--green); border-radius: 0; background: transparent; color: var(--green-dark); cursor: pointer; }
.theme-kicker { margin: 0 0 16px; color: var(--green); font-size: 12px; }
.theme-title { max-width: 850px; margin: 0; font-size: clamp(46px, 7vw, 82px); font-weight: 520; line-height: 1.03; overflow-wrap: anywhere; }
.theme-meta { max-width: 650px; margin: 26px 0 0; color: #475148; font-size: 15px; line-height: 1.8; }
.plan-download { display: grid; grid-template-columns: auto auto auto; align-items: center; gap: 16px; width: auto; min-width: 235px; min-height: 0; padding: 16px 14px; border: 1px solid rgba(11, 116, 68, .42); border-radius: 8px; color: var(--green-dark); background: rgba(255, 255, 255, .44); box-shadow: none; text-decoration: none; transition: background .25s ease, border-color .25s ease; }
.plan-download:hover { background: rgba(255, 255, 255, .76); border-color: var(--green); }
.plan-download .file-symbol { font-size: 11px; font-weight: 700; }
.plan-download span:nth-child(2) { display: grid; gap: 3px; }
.plan-download strong { font-size: 14px; }
.plan-download small { color: var(--muted); font-size: 10px; }
.plan-download b { margin-left: auto; font-weight: 400; }

.content-nav { position: sticky; top: 68px; z-index: 20; overflow-x: auto; border-bottom: 1px solid var(--line); background: rgba(247, 248, 245, .9); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); scrollbar-width: none; }
.content-nav::-webkit-scrollbar { display: none; }
.content-nav-inner { display: flex; min-width: max-content; }
.content-nav button { display: grid; gap: 3px; min-width: 190px; padding: 17px 28px 16px 0; border: 0; border-bottom: 2px solid transparent; background: transparent; color: var(--muted); text-align: left; cursor: pointer; }
.content-nav button + button { padding-left: 28px; }
.content-nav button.active { border-bottom-color: var(--green); color: var(--green-dark); }
.content-nav button span { font-size: 14px; font-weight: 600; }
.content-nav button small { font-size: 10px; }
.workspace-shell { padding-top: 86px; padding-bottom: 120px; }
.workspace-heading { display: flex; align-items: end; justify-content: space-between; gap: 40px; margin-bottom: 48px; }
.week-summary { max-width: 360px; margin: 0 0 4px; color: var(--muted); font-size: 13px; line-height: 1.7; }
.week-tabs { display: flex; gap: 0; overflow-x: auto; border-top: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); scrollbar-width: none; }
.week-tabs::-webkit-scrollbar { display: none; }
.week-tab { flex: 1 0 150px; display: grid; gap: 4px; padding: 18px 18px; border: 0; border-right: 1px solid var(--line); border-radius: 0; background: transparent; color: var(--muted); text-align: left; cursor: pointer; }
.week-tab.active { background: var(--green-soft); color: var(--green-dark); }
.week-tab strong { font-size: 14px; }
.week-tab small { font-size: 10px; }
.week-panel { padding-top: 54px; }
.week-panel-header { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 28px; }
.week-panel-header h2 { margin: 0; font-size: 28px; font-weight: 520; }
.week-plan-link { padding-bottom: 5px; border-bottom: 1px solid var(--green); color: var(--green-dark); font-size: 12px; text-decoration: none; }
.activity-plan { border-top: 1px solid var(--line-strong); }
.activity-row { display: grid; grid-template-columns: 52px 82px minmax(0, 1fr) minmax(180px, auto); align-items: center; gap: 18px; min-height: 100px; border-bottom: 1px solid var(--line); }
.activity-index { color: #9aa39b; font-family: Georgia, serif; font-size: 15px; }
.activity-day { color: var(--muted); font-size: 12px; }
.activity-title { display: grid; gap: 6px; }
.activity-title span { color: var(--green); font-size: 10px; }
.activity-title h4 { margin: 0; font-size: 18px; font-weight: 520; }
.activity-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; }
.resource-action { display: inline-flex; align-items: center; gap: 8px; padding: 8px 10px; border: 1px solid var(--line-strong); border-radius: 6px; color: var(--ink); font-size: 11px; text-decoration: none; }
.resource-action span { color: var(--green); font-weight: 650; }
.resource-state { color: #909891; font-size: 11px; }

.region-directory { border-top: 1px solid var(--line-strong); }
.region-entry { display: grid; grid-template-columns: 68px minmax(0, 1fr) auto; align-items: center; width: 100%; min-height: 116px; padding: 20px 0; border: 0; border-bottom: 1px solid var(--line); border-radius: 0; background: transparent; color: var(--ink); text-align: left; cursor: pointer; transition: padding .25s ease, background .25s ease; }
.region-entry:hover { padding-left: 16px; padding-right: 16px; background: var(--green-wash); }
.region-number { color: #99a29a; font-family: Georgia, serif; }
.region-copy { display: grid; gap: 9px; }
.region-copy strong { font-size: 23px; font-weight: 520; }
.region-copy small { color: var(--muted); font-size: 12px; line-height: 1.6; }
.region-count { color: var(--muted); font-size: 12px; }
.region-count b { display: inline-block; margin-left: 14px; color: var(--green); font-weight: 400; transition: transform .25s ease; }
.region-entry:hover .region-count b { transform: translateX(4px); }
.region-detail-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 38px; }
.region-detail-heading h3 { margin: 0; font-size: clamp(36px, 5vw, 62px); font-weight: 520; }
.region-detail-heading > span { color: var(--muted); font-size: 12px; }
.region-activity-list { display: grid; grid-template-columns: repeat(12, 1fr); gap: 48px 24px; }
.region-activity { display: block; grid-column: span 5; }
.region-activity:nth-child(3n + 1) { grid-column: span 7; }
.region-visual { position: relative; min-height: 260px; overflow: hidden; background: #e7eee8; color: var(--green-dark); }
.region-activity:nth-child(3n + 1) .region-visual { min-height: 360px; }
.region-visual::after { content: ""; position: absolute; inset: 18px; border: 1px solid rgba(11, 116, 68, .16); }
.region-visual span { position: absolute; top: 20px; left: 22px; font-family: Georgia, serif; font-size: 62px; opacity: .16; }
.region-visual em { position: absolute; right: 22px; bottom: 20px; font-size: 11px; font-style: normal; }
.region-visual-美工区 { background: #eeeae2; }
.region-visual-益智区 { background: #e9efea; }
.region-visual-建构区 { background: #e6ece9; }
.region-visual-生活区 { background: #efeee8; }
.region-visual-读写区 { background: #e8ede8; }
.region-visual-科学区 { background: #e5edef; }
.region-visual.has-image { background: var(--green-wash); }
.region-visual.has-image { display: flex; align-items: center; justify-content: center; min-height: 0; height: auto; overflow: hidden; }
.region-visual.has-image img { display: block; position: static; width: 100%; height: auto; max-height: 460px; object-fit: contain; }
.region-visual.has-image span, .region-visual.has-image em { z-index: 1; }
.region-text-index { display: flex; align-items: flex-start; justify-content: space-between; min-height: 116px; padding: 20px 0; border-top: 1px solid var(--line-strong); border-bottom: 1px solid var(--line); color: var(--green-dark); }
.region-text-index span { color: #9aa39b; font-family: Georgia, serif; font-size: 56px; line-height: .9; }
.region-text-index em { align-self: flex-end; color: var(--muted); font-size: 11px; font-style: normal; }
.region-activity-copy { padding: 18px 0 0; }
.region-activity-copy > p { margin: 0 0 8px; color: var(--muted); font-size: 10px; }
.region-activity-copy h4 { margin: 0; font-size: 21px; font-weight: 520; }
.region-activity-copy .activity-actions { justify-content: flex-start; margin-top: 16px; }

.resource-hub { border-top: 1px solid var(--line-strong); }
.environment-intro { display: grid; grid-template-columns: 130px 1fr; gap: 26px; padding: 58px 0; border-bottom: 1px solid var(--line); }
.environment-intro h3 { margin: 0; font-size: clamp(30px, 4vw, 48px); font-weight: 520; }
.environment-intro p:last-child { max-width: 620px; margin: 20px 0 0; color: var(--muted); line-height: 1.8; }
.environment-list { padding: 52px 0; border-bottom: 1px solid var(--line); }
.environment-list header, .environment-list article { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 24px; align-items: start; }
.environment-list header { padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.environment-list h3 { margin: 0; font-size: 20px; font-weight: 520; }
.environment-list header span, .environment-list article span { color: var(--muted); font-size: 11px; }
.environment-list article { padding: 25px 0; border-bottom: 1px solid var(--line); }
.environment-list article p { margin: 0; line-height: 1.8; }
.information-row { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; padding: 52px 0; }
.information-row h3 { margin: 0; font-size: 28px; font-weight: 520; }
.information-row > p { margin: 0; color: var(--muted); line-height: 1.8; }
.plan-only { padding-top: 90px; padding-bottom: 120px; }
.plan-only h2 { margin: 0; font-size: 36px; font-weight: 520; }
.plan-only > p:last-child { max-width: 620px; color: var(--muted); line-height: 1.8; }

.site-footer { display: flex; justify-content: space-between; width: min(calc(100% - 48px), var(--max-width)); margin: 0 auto; padding: 28px 0 36px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; }

.reveal { opacity: 1; transform: none; transition: opacity .7s ease, transform .7s cubic-bezier(.22, .61, .36, 1); }
.motion-ready .reveal { animation: reveal-in .7s cubic-bezier(.22, .61, .36, 1) both; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@keyframes reveal-in { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: translateY(0); } }

@media (max-width: 820px) {
  .site-nav { gap: 14px; }
  .site-nav a:not(.nav-upload) { display: none; }
  .prototype-hero { min-height: 0; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; padding: 66px 0 58px; }
  .hero-visual { min-height: 360px; }
  .hero-visual img { min-height: 360px; }
  .current-course-section, .archive-section { padding: 78px 0; }
  .grade-story, .grade-story:nth-child(even) { grid-template-columns: 1fr; }
  .grade-story .story-media, .grade-story:nth-child(even) .story-media { grid-column: 1; grid-row: 1; min-height: 300px; }
  .grade-story .story-copy, .grade-story:nth-child(even) .story-copy { grid-column: 1; grid-row: 2; padding: 44px 0 54px; }
  .age-group { grid-template-columns: 112px 1fr; }
  .theme-row { grid-template-columns: 105px minmax(0, 1fr) 20px; padding-left: 22px; }
  .theme-hero-inner { grid-template-columns: 1fr; align-items: start; }
  .plan-download { min-width: 0; max-width: 300px; }
  .workspace-shell { padding-top: 70px; }
  .activity-row { grid-template-columns: 44px 64px minmax(0, 1fr); padding: 20px 0; }
  .activity-actions { grid-column: 3; justify-content: flex-start; }
  .region-activity, .region-activity:nth-child(3n + 1) { grid-column: span 6; }
  .region-activity:nth-child(3n + 1) .region-visual { min-height: 280px; }
}

@media (max-width: 560px) {
  .prototype-container, .site-footer { width: min(calc(100% - 32px), var(--max-width)); }
  .topbar { min-height: 66px; padding: 9px 16px; }
  .brand { gap: 9px; }
  .brand-logo { width: 38px; height: 38px; }
  .brand-copy strong { font-size: 13px; }
  .brand-copy small { display: none; }
  .site-nav .nav-upload { padding: 8px 10px; font-size: 12px; }
  .hero-inner h1 { font-size: 45px; }
  .hero-lead { font-size: 17px; }
  .hero-visual { min-height: 260px; border-radius: 10px; }
  .hero-visual img { min-height: 260px; }
  .hero-meta { margin-top: 36px; }
  .hero-meta span { padding-right: 16px; }
  .hero-meta span + span { padding-left: 16px; }
  .editorial-heading, .workspace-heading { display: grid; gap: 16px; margin-bottom: 40px; }
  .editorial-heading h2, .workspace-heading h2 { font-size: 34px; }
  .editorial-heading > p { font-size: 13px; }
  .story-media { min-height: 240px !important; }
  .story-copy h3 { font-size: 34px; }
  .directory-tools { align-items: stretch; flex-direction: column; }
  .age-filters { overflow-x: auto; }
  .theme-search input { width: 100%; }
  .age-group { display: block; }
  .age-label { flex-direction: row; align-items: baseline; justify-content: space-between; padding: 26px 0 16px; }
  .theme-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-left: 0; gap: 1px; background: var(--line); }
  .theme-row { display: flex; align-items: flex-start; flex-direction: column; min-height: 150px; padding: 18px; background: var(--surface); }
  .theme-month { margin-bottom: auto; }
  .theme-name { margin-top: 24px; }
  .theme-name strong { font-size: 15px; }
  .theme-arrow { display: none; }
  .theme-hero { min-height: 360px; }
  .theme-hero-inner { padding: 60px 0 54px; gap: 36px; }
  .theme-title { font-size: 46px; }
  .content-nav { top: 66px; }
  .content-nav-inner { width: max-content; padding-left: 16px; padding-right: 16px; }
  .content-nav button { min-width: 132px; padding-right: 20px; }
  .content-nav button + button { padding-left: 20px; }
  .workspace-shell { padding-top: 58px; padding-bottom: 86px; }
  .week-tabs { margin-left: -16px; margin-right: -16px; padding-left: 16px; }
  .week-tab { flex-basis: 125px; }
  .week-panel { padding-top: 42px; }
  .week-panel-header { align-items: start; }
  .activity-row { grid-template-columns: 36px minmax(0, 1fr); gap: 10px 14px; }
  .activity-day { grid-column: 2; grid-row: 1; }
  .activity-title { grid-column: 2; grid-row: 2; }
  .activity-actions { grid-column: 2; grid-row: 3; }
  .region-entry { grid-template-columns: 44px minmax(0, 1fr); }
  .region-count { grid-column: 2; margin-top: 10px; }
  .region-detail-heading { align-items: start; flex-direction: column; }
  .region-activity-list { grid-template-columns: 1fr; gap: 42px; }
  .region-activity, .region-activity:nth-child(3n + 1) { grid-column: 1; }
  .region-visual, .region-activity:nth-child(3n + 1) .region-visual { min-height: 260px; }
  .environment-intro { grid-template-columns: 68px 1fr; }
  .environment-list header, .environment-list article { grid-template-columns: 1fr; gap: 10px; }
  .information-row { grid-template-columns: 1fr; gap: 22px; }
  .site-footer { display: grid; gap: 6px; }
}

@media (max-width: 390px) {
  .theme-grid { grid-template-columns: 1fr; }
  .theme-row { min-height: 118px; }
  .hero-meta span:nth-child(3) { width: 100%; padding-left: 0; border-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; animation: none !important; }
}