:root {
    --bg: #FFFBF3;
    --bg-soft: #FFF6E4;
    --gold-soft: #F8E7B8;
    --ink: #1C1608;
    --text: #3A3120;
    --muted: #6B5E43;
    --note: #8A7B5E;
    --gold: #D4A017;
    --gold-bright: #E8C547;
    --gold-warm: #F0C94A;
    --gold-deep: #B8860B;
    --line: rgba(212, 160, 23, 0.18);
    --shadow: 0 16px 42px rgba(80, 55, 10, 0.10);
    --max: 1280px;
    --header-desktop: 136px;
    --header-mobile: 92px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.72;
    overflow-x: hidden;
}
body.overlay-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
button, input { font: inherit; }
button { color: inherit; }
.shell { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; }
.site-main { padding-top: var(--header-desktop); min-height: 70vh; }

.site-header {
    position: fixed;
    inset: 0 0 auto;
    z-index: 1000;
    width: 100%;
}
.gold-line { height: 22px; background: #241C0B; color: #F8E7B8; font-size: 12px; letter-spacing: .05em; }
.gold-line-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.line-action {
    min-width: 54px;
    height: 22px;
    padding: 0 6px;
    border: 0;
    background: transparent;
    color: #FFF6E4;
    cursor: pointer;
}
.line-action:hover, .line-action:focus-visible { color: var(--gold-warm); outline: none; text-decoration: underline; }
.concierge-bar { height: 70px; background: rgba(255, 251, 243, .98); border-bottom: 1px solid var(--line); }
.concierge-inner {
    height: 100%;
    display: grid;
    grid-template-columns: minmax(150px, 1fr) auto minmax(150px, 1fr);
    align-items: center;
    gap: 20px;
}
.brand-home { justify-self: start; min-height: 44px; display: inline-flex; align-items: center; max-width: 220px; }
.brand-wordmark { font-size: 24px; font-weight: 800; letter-spacing: .08em; color: var(--ink); white-space: nowrap; }
.header-logo, .catalog-logo, .footer-logo { width: auto; object-fit: contain; }
.header-logo { max-height: 38px; max-width: 210px; }
.catalog-logo { max-height: 34px; max-width: 170px; }
.footer-logo { max-height: 42px; max-width: 190px; }
.catalog-button, .entry-shortcut, .close-button {
    min-height: 44px;
    min-width: 74px;
    padding: 9px 18px;
    border-radius: 10px;
    border: 1px solid var(--line);
    background: var(--bg-soft);
    color: var(--ink);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.catalog-button { justify-self: center; background: linear-gradient(135deg, #F0C94A 0%, #D4A017 55%, #B8860B 100%); border-color: transparent; font-weight: 800; }
.entry-shortcut { justify-self: end; font-weight: 700; }
.catalog-button:hover, .catalog-button:focus-visible, .entry-shortcut:hover, .entry-shortcut:focus-visible, .close-button:hover, .close-button:focus-visible {
    outline: 2px solid var(--gold-deep);
    outline-offset: 2px;
}
.tag-strip { height: 44px; background: #F8E7B8; border-bottom: 1px solid rgba(184, 134, 11, .22); }
.tag-strip-inner { height: 100%; display: flex; align-items: center; gap: 8px; overflow: hidden; }
.tag-link {
    min-height: 34px;
    padding: 5px 12px;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    white-space: nowrap;
    color: var(--text);
    font-weight: 700;
}
.tag-link:hover, .tag-link:focus-visible { background: rgba(255,255,255,.48); outline: none; }
.tag-link.is-current { background: var(--gold-warm); color: var(--ink); }

.page-overlay {
    position: fixed;
    inset: 0;
    z-index: 1080;
    background: rgba(28, 22, 8, .48);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .18s ease, visibility .18s ease;
}
.page-overlay.is-open { opacity: 1; visibility: visible; pointer-events: auto; }
.catalog-panel, .search-layer {
    position: fixed;
    left: 0;
    right: 0;
    top: 92px;
    z-index: 1100;
    background: var(--bg);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    transform: translateY(-18px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
}
.catalog-panel.is-open, .search-layer.is-open { transform: translateY(0); opacity: 1; visibility: visible; pointer-events: auto; }
.catalog-shell, .search-shell { padding-top: 20px; padding-bottom: 26px; max-height: calc(100vh - 108px); overflow-y: auto; }
.catalog-head, .search-head { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 20px; }
.catalog-title { display: flex; align-items: center; gap: 12px; }
.catalog-title strong { color: var(--ink); font-size: 20px; }
.catalog-groups { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.catalog-groups section { min-width: 0; }
.catalog-groups h2 { margin: 0 0 8px; color: var(--gold-deep); font-size: 15px; letter-spacing: .08em; }
.catalog-groups a {
    display: block;
    padding: 11px 10px;
    border-top: 1px solid var(--line);
    border-radius: 8px;
}
.catalog-groups a:hover, .catalog-groups a:focus-visible { background: var(--bg-soft); outline: 2px solid rgba(184,134,11,.26); outline-offset: 1px; }
.catalog-groups strong { display: block; color: var(--ink); margin-bottom: 2px; }
.catalog-groups span { display: block; color: var(--muted); font-size: 13px; line-height: 1.55; }
.search-layer { background: transparent; box-shadow: none; border: 0; }
.search-shell { background: var(--bg); border: 1px solid var(--line); box-shadow: var(--shadow); }
.search-head h2 { margin: 4px 0 0; font-size: 24px; color: var(--ink); }
.eyebrow { color: var(--gold-deep); font-weight: 800; font-size: 13px; letter-spacing: .12em; }
.search-field { display: grid; gap: 8px; color: var(--muted); font-size: 14px; }
.search-field input {
    width: 100%;
    height: 50px;
    border: 1px solid rgba(184,134,11,.32);
    border-radius: 0;
    background: #fffdf9;
    color: var(--ink);
    padding: 0 14px;
}
.search-field input:focus { outline: 2px solid var(--gold); outline-offset: 2px; }
.search-presets { display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; margin-top: 18px; }
.search-presets a { min-height: 44px; border: 1px solid var(--line); background: var(--bg-soft); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-weight: 700; color: var(--ink); text-align: center; padding: 8px; }
.search-presets a:hover, .search-presets a:focus-visible { background: var(--gold-soft); outline: 2px solid rgba(184,134,11,.28); }
.search-empty { margin: 16px 0 0; color: var(--muted); }

/* Common page system */
.hero, .page-hero { padding: 48px 0 28px; }
.page-hero-grid { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(320px, .92fr); gap: 34px; align-items: center; }
.page-kicker { display: inline-flex; align-items: center; min-height: 30px; padding: 4px 9px; border-left: 3px solid var(--gold); color: var(--gold-deep); font-weight: 800; letter-spacing: .08em; font-size: 13px; }
h1, h2, h3 { color: var(--ink); line-height: 1.28; }
h1 { font-size: clamp(28px, 3vw, 32px); margin: 12px 0 14px; letter-spacing: -.02em; }
h2 { font-size: clamp(22px, 2.3vw, 28px); }
h3 { font-size: 18px; }
p { margin: 0 0 1em; }
.lead { font-size: 17px; color: var(--text); max-width: 760px; }
.meta-note { color: var(--muted); font-size: 14px; }
.media-frame {
    margin: 0;
    width: 100%;
    min-height: 220px;
    max-height: 320px;
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid var(--line);
    background: linear-gradient(145deg, var(--gold-soft), var(--bg-soft));
    box-shadow: var(--shadow);
}
.media-frame img { width: 100%; height: 100%; max-height: 320px; object-fit: cover; }
.media-slot { display: flex; align-items: center; justify-content: center; color: var(--gold-deep); letter-spacing: .08em; font-weight: 800; }
.media-slot span { background: rgba(255,251,243,.78); border: 1px solid rgba(184,134,11,.2); padding: 8px 12px; border-radius: 8px; }
.section-block { padding: 44px 0; border-top: 1px solid var(--line); }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 22px; }
.section-head h2 { margin: 0; }
.section-head p { margin: 0; color: var(--muted); max-width: 660px; }
.grid-2, .grid-3, .grid-4, .grid-6 { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.card, .panel-card, .number-card, .notice-card {
    min-width: 0;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: #fffdf8;
    box-shadow: 0 10px 30px rgba(80,55,10,.055);
}
.card { padding: 20px; }
.card h3, .panel-card h3, .number-card h3, .notice-card h3 { margin: 0 0 10px; }
.card p, .panel-card p, .number-card p, .notice-card p { color: var(--text); }
.text-link { display: inline-flex; min-height: 44px; align-items: center; font-weight: 800; color: var(--gold-deep); }
.text-link:hover, .text-link:focus-visible { color: var(--ink); text-decoration: underline; outline: none; }
.button-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.primary-button, .secondary-button {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 17px;
    border-radius: 10px;
    font-weight: 800;
}
.primary-button { background: linear-gradient(135deg,#F0C94A 0%,#D4A017 55%,#B8860B 100%); color: var(--ink); }
.secondary-button { background: var(--bg-soft); color: var(--ink); border: 1px solid var(--line); }
.primary-button:hover, .primary-button:focus-visible, .secondary-button:hover, .secondary-button:focus-visible { outline: 2px solid var(--gold-deep); outline-offset: 2px; }
.soft-band { background: var(--bg-soft); }
.gold-band { background: linear-gradient(120deg, #FFF6E4, #F8E7B8); }
.dark-band { background: #231C0C; color: #FFF6E4; }
.dark-band h2, .dark-band h3 { color: #FFF6E4; }
.dark-band p { color: #F8E7B8; }

/* Homepage */
.home-cover { padding: 34px 0 20px; }
.home-banner { min-height: 230px; max-height: 320px; }
.home-banner img { max-height: 320px; width: 100%; object-fit: cover; }
.home-intro { max-width: 900px; padding: 24px 0 8px; }
.home-intro .small-title { color: var(--gold-deep); font-weight: 800; letter-spacing: .12em; }
.home-intro h1 { max-width: 780px; }
.home-intro p { max-width: 840px; }
.sign-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 10px; }
.sign-card { padding: 16px; min-height: 144px; border-radius: 10px; border: 1px solid rgba(184,134,11,.18); background: #F0C94A; color: var(--ink); }
.sign-card:nth-child(even) { background: #B8860B; color: #FFF6E4; }
.sign-card:nth-child(even) h3, .sign-card:nth-child(even) a { color: #FFF6E4; }
.sign-card h3 { margin: 0 0 6px; font-size: 16px; }
.sign-card p { font-size: 14px; line-height: 1.55; margin-bottom: 8px; }
.sign-card a { font-weight: 800; color: var(--ink); }
.stage-feature { display: grid; grid-template-columns: .92fr 1.08fr; gap: 28px; align-items: start; }
.stage-copy { padding-top: 4px; }
.number-list { display: grid; gap: 10px; margin-top: 18px; }
.number-item { display: grid; grid-template-columns: 42px 1fr; gap: 10px; align-items: start; padding-top: 10px; border-top: 1px solid var(--line); }
.number-item .num { color: var(--gold-deep); font-weight: 900; letter-spacing: .08em; }
.number-item strong { color: var(--ink); }
.board-card { overflow: hidden; }
.board-card .media-frame { min-height: 185px; max-height: 220px; border-radius: 0; box-shadow: none; border: 0 0 1px 0; }
.board-card .card-body { padding: 20px; }
.board-card .card-body p { min-height: 128px; }
.task-list, .showcase-list, .safety-list { display: grid; gap: 10px; }
.task-row, .showcase-row, .safety-row { padding: 14px 0; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: 34px 1fr; gap: 10px; }
.task-row strong, .showcase-row strong, .safety-row strong { color: var(--ink); }
.roadmap-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 12px; }
.roadmap-step { border-top: 3px solid var(--gold); padding: 16px 12px; background: #fffdf8; border-radius: 0 0 10px 10px; }
.roadmap-step span { color: var(--gold-deep); font-weight: 900; display: block; margin-bottom: 6px; }
.status-table { width: 100%; border-collapse: collapse; background: #fffdf8; border: 1px solid var(--line); }
.status-table th, .status-table td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
.status-table th { color: var(--ink); background: var(--bg-soft); }
.status-badge { display: inline-flex; align-items: center; min-height: 28px; padding: 3px 9px; border-radius: 8px; background: var(--gold-soft); color: var(--ink); font-weight: 800; font-size: 13px; }
.app-block { display: grid; grid-template-columns: minmax(280px, .8fr) minmax(0, 1.2fr); gap: 30px; align-items: center; }
.app-mark { width: 68px; height: 68px; border-radius: 16px; overflow: hidden; border: 1px solid var(--line); background: var(--gold-soft); margin-bottom: 14px; display: flex; align-items: center; justify-content: center; }
.app-mark img { width: 100%; height: 100%; object-fit: cover; }
.info-split { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 20px; }

/* Inner-page patterns */
.indexed-list { counter-reset: item; display: grid; gap: 14px; }
.indexed-item { counter-increment: item; display: grid; grid-template-columns: 54px 1fr; gap: 14px; padding: 20px 0; border-top: 1px solid var(--line); }
.indexed-item::before { content: counter(item, decimal-leading-zero); font-weight: 900; color: var(--gold-deep); font-size: 24px; }
.indexed-item h2, .indexed-item h3 { margin: 0 0 8px; }
.archive-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; }
.archive-entry { padding: 20px; border: 1px solid var(--line); background: #fffdf8; border-radius: 12px; }
.archive-entry .archive-code { color: var(--gold-deep); font-weight: 900; letter-spacing: .08em; }
.magazine-flow { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.magazine-flow article:nth-child(3n+1) { grid-column: span 2; background: var(--bg-soft); }
.magazine-flow article { padding: 24px; border: 1px solid var(--line); border-radius: 12px; }
.gallery-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.gallery-card { min-height: 210px; padding: 18px; border: 1px solid var(--line); border-radius: 12px; background: linear-gradient(160deg, #fffdf8, #FFF6E4); display: flex; flex-direction: column; justify-content: space-between; }
.gallery-card .index { color: var(--gold-deep); font-weight: 900; }
.program-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
.program-row { display: grid; grid-template-columns: 110px 1fr; gap: 20px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.program-row .program-label { color: var(--gold-deep); font-weight: 900; }
.timeline-list { display: grid; gap: 0; }
.timeline-item { position: relative; padding: 0 0 28px 48px; }
.timeline-item::before { content: ''; position: absolute; left: 14px; top: 10px; bottom: -6px; width: 1px; background: rgba(184,134,11,.32); }
.timeline-item:last-child::before { display: none; }
.timeline-item::after { content: attr(data-step); position: absolute; left: 0; top: 0; width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center; background: var(--gold-warm); color: var(--ink); font-size: 12px; font-weight: 900; }
.scale-list { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
.scale-card { display: grid; grid-template-columns: 80px 1fr; gap: 16px; padding: 22px; border: 1px solid var(--line); border-radius: 12px; background: #fffdf8; }
.scale-card .big-num { font-size: 36px; line-height: 1; color: var(--gold-deep); font-weight: 900; }
.notice-board { display: grid; gap: 14px; }
.notice-card { padding: 22px; border-left: 4px solid var(--gold); }
.notice-card .state { color: var(--gold-deep); font-size: 13px; font-weight: 900; letter-spacing: .08em; }
.backstage-strip { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 0; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: #fffdf8; }
.backstage-strip article { padding: 22px; border-right: 1px solid var(--line); }
.backstage-strip article:last-child { border-right: 0; }
.class-directory { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; }
.class-item { padding: 20px; border-left: 3px solid var(--gold); background: var(--bg-soft); border-radius: 0 10px 10px 0; }
.observe-feature { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.observe-feature article { padding: 24px; border-top: 3px solid var(--gold); background: #fffdf8; }
.step-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 14px; }
.step-card { padding: 20px; border: 1px solid var(--line); border-radius: 12px; background: #fffdf8; }
.step-card .step-no { color: var(--gold-deep); font-weight: 900; letter-spacing: .08em; }
.manual-chapter { display: grid; grid-template-columns: 170px 1fr; gap: 22px; padding: 24px 0; border-top: 1px solid var(--line); }
.manual-chapter h2 { margin: 0; font-size: 20px; }
.product-hero { display: grid; grid-template-columns: 360px 1fr; gap: 38px; align-items: center; }
.phone-frame { border: 1px solid var(--line); border-radius: 28px; background: #231C0C; padding: 10px; box-shadow: var(--shadow); }
.phone-frame .media-frame { min-height: 470px; max-height: 560px; border-radius: 20px; box-shadow: none; }
.terms { display: grid; gap: 0; }
.term { padding: 24px 0; border-top: 1px solid var(--line); }
.term h2 { margin: 0 0 10px; font-size: 21px; }
.faq-list { display: grid; gap: 12px; }
.faq-item { border: 1px solid var(--line); border-radius: 12px; background: #fffdf8; padding: 20px; }
.faq-item h2 { font-size: 18px; margin: 0 0 10px; }
.contact-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; }
.contact-card { padding: 22px; border: 1px solid var(--line); border-radius: 12px; background: #fffdf8; }
.contact-card h2 { font-size: 20px; margin: 0 0 8px; }
.brand-statement { max-width: 920px; margin: 0 auto; }
.brand-statement blockquote { margin: 24px 0; padding: 22px 24px; border-left: 4px solid var(--gold); background: var(--bg-soft); color: var(--ink); font-size: 20px; line-height: 1.65; }

.site-footer { background: #1A1508; color: #FFF6E4; border-top: 1px solid rgba(232,197,71,.32); padding: 44px 0 72px; }
.footer-grid { display: grid; gap: 28px; }
.footer-brand { display: flex; align-items: center; gap: 14px; }
.footer-brand-link { min-width: 80px; display: inline-flex; align-items: center; }
.footer-brand .brand-wordmark { color: #FFF6E4; font-size: 22px; }
.footer-brand strong, .footer-brand span { display: block; }
.footer-brand strong { color: #FFF6E4; font-size: 20px; }
.footer-brand span { color: #E8C547; font-size: 13px; letter-spacing: .12em; }
.footer-links { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 18px; }
.footer-links h2 { color: #E8C547; font-size: 15px; margin: 0 0 10px; letter-spacing: .08em; }
.footer-links a { display: block; color: #FFF6E4; min-height: 34px; padding: 4px 0; }
.footer-links a:hover, .footer-links a:focus-visible { color: #E8C547; outline: none; text-decoration: underline; }
.footer-notice { margin: 0; padding-top: 20px; border-top: 1px solid rgba(232,197,71,.18); color: #F8E7B8; max-width: 1020px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 16px; border-top: 1px solid rgba(232,197,71,.18); color: #D8CBAA; font-size: 13px; }
.footer-bottom a { color: #FFF6E4; }
.mobile-bottom-nav { display: none; }

@media (max-width: 980px) {
    .catalog-groups { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .search-presets { grid-template-columns: repeat(3, 1fr); }
    .sign-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
    .grid-4 { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .grid-6, .roadmap-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
    .page-hero-grid, .stage-feature, .app-block, .product-hero { grid-template-columns: 1fr; }
    .phone-frame { max-width: 430px; }
    .gallery-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .backstage-strip { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .backstage-strip article:nth-child(2) { border-right: 0; }
    .backstage-strip article:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
    .step-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
}

@media (max-width: 720px) {
    .shell { width: min(calc(100% - 32px), var(--max)); }
    .site-main { padding-top: var(--header-mobile); padding-bottom: calc(58px + env(safe-area-inset-bottom)); }
    .tag-strip { display: none; }
    .concierge-inner { grid-template-columns: minmax(0, 1fr) auto auto; gap: 8px; }
    .brand-home { min-width: 0; max-width: 100%; overflow: hidden; }
    .brand-wordmark { font-size: 18px; letter-spacing: .03em; overflow: hidden; text-overflow: ellipsis; }
    .header-logo { max-height: 32px; max-width: 132px; }
    .catalog-button, .entry-shortcut { min-width: 64px; padding: 8px 10px; }
    .catalog-panel, .search-layer { top: 92px; }
    .catalog-shell { width: 100%; padding: 16px; max-height: calc(100vh - 92px); }
    .catalog-groups { grid-template-columns: 1fr; }
    .search-layer { top: 0; bottom: 0; background: var(--bg); }
    .search-shell { width: 100%; height: 100%; max-height: none; border: 0; box-shadow: none; padding: max(24px, env(safe-area-inset-top)) 16px 24px; overflow-y: auto; }
    .search-presets { grid-template-columns: repeat(2, 1fr); }
    .hero, .page-hero { padding-top: 32px; }
    .section-block { padding: 36px 0; }
    .section-head { display: block; }
    .section-head p { margin-top: 8px; }
    .grid-2, .grid-3, .grid-4, .grid-6, .info-split, .archive-grid, .magazine-flow, .scale-list, .class-directory, .observe-feature, .contact-grid { grid-template-columns: 1fr; }
    .magazine-flow article:nth-child(3n+1) { grid-column: auto; }
    .sign-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .roadmap-grid { grid-template-columns: 1fr; }
    .status-table { display: block; overflow-x: auto; }
    .gallery-grid { grid-template-columns: 1fr; }
    .program-row { grid-template-columns: 1fr; gap: 6px; }
    .backstage-strip { grid-template-columns: 1fr; }
    .backstage-strip article { border-right: 0; border-bottom: 1px solid var(--line); }
    .backstage-strip article:last-child { border-bottom: 0; }
    .step-grid { grid-template-columns: 1fr; }
    .manual-chapter { grid-template-columns: 1fr; gap: 8px; }
    .scale-card { grid-template-columns: 56px 1fr; }
    .footer-links { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .footer-bottom { display: grid; }
    .mobile-bottom-nav {
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 900;
        height: calc(50px + env(safe-area-inset-bottom));
        padding-bottom: env(safe-area-inset-bottom);
        display: grid;
        grid-template-columns: repeat(5, 1fr);
        background: rgba(255,251,243,.98);
        border-top: 1px solid var(--line);
    }
    .mobile-nav-link { min-width: 0; min-height: 50px; display: flex; align-items: center; justify-content: center; color: var(--text); font-size: 13px; font-weight: 800; }
    .mobile-nav-link.is-current { background: var(--gold-warm); color: var(--ink); }
    .site-footer { padding-bottom: calc(82px + env(safe-area-inset-bottom)); }
}

@media (max-width: 420px) {
    .gold-line { letter-spacing: 0; }
    .brand-wordmark { font-size: 16px; }
    .catalog-button, .entry-shortcut { min-width: 58px; padding-left: 8px; padding-right: 8px; font-size: 14px; }
    .sign-grid { grid-template-columns: 1fr; }
    .search-presets { grid-template-columns: 1fr; }
    .footer-links { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
    * { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}

/* Accessibility refinements */
.line-action { position: relative; }
.line-action::after { content: ""; position: absolute; left: -6px; right: -6px; top: -11px; bottom: -11px; }
.tag-link { min-height: 44px; }
.footer-links a { min-height: 44px; display: flex; align-items: center; }
.footer-bottom a { display: inline-flex; min-height: 44px; align-items: center; }

@media (max-width: 720px) {
    .status-table, .status-table thead, .status-table tbody, .status-table tr, .status-table th, .status-table td { display: block; width: 100%; }
    .status-table { overflow: visible; }
    .status-table thead { display: none; }
    .status-table tr { border-bottom: 1px solid var(--line); }
    .status-table td { border-bottom: 0; padding: 10px 14px; }
}

/* Keep local content images in their original aspect ratio. */
.media-frame img,
.home-banner img {
    width: 100%;
    height: auto;
    max-height: 320px;
    object-fit: contain;
}
.spaced-top { margin-top: 18px; }