/* ============================================================
   LT Archive — Main Stylesheet  v1.0.0
   ============================================================ */

/* ============================================================
   0. DESIGN TOKENS
   ============================================================ */
:root {
    --c-bg: #ffffff;
    --c-bg-subtle: #f6f9fc;
    --c-bg-warm: #faf8f6;
    --c-accent: #0ea5e9;
    --c-accent-lt: #e0f2fe;
    --c-accent-dk: #0284c7;
    --c-warm: #b07d4a;
    --c-warm-lt: #f5ede2;
    --c-navy: #1e3a5f;
    --c-text: #0f172a;
    --c-text-2: #64748b;
    --c-text-3: #94a3b8;
    --c-border: #e2e8f0;

    --font-brand: "Plus Jakarta Sans", sans-serif;
    --font-body: "Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;

    --sp-xs: 4px;
    --sp-sm: 8px;
    --sp-md: 16px;
    --sp-lg: 24px;
    --sp-xl: 40px;
    --sp-2xl: 64px;

    --r-sm: 4px;
    --r-md: 8px;
    --r-lg: 12px;

    --shadow-card:
        0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-hover:
        0 6px 20px rgba(14, 165, 233, 0.12), 0 2px 6px rgba(14, 165, 233, 0.08);

    --w-content: 960px;
    --w-article: 720px;
    --h-header: 60px;
}

/* ============================================================
   1. RESET / BASE
   ============================================================ */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 15px;
    scroll-behavior: smooth;
    scrollbar-gutter: stable;
}

body {
    font-family: var(--font-body);
    color: var(--c-text);
    background: var(--c-bg);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img,
video,
svg {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

ul,
ol {
    list-style: none;
}

button {
    cursor: pointer;
    font: inherit;
    border: none;
    background: none;
}

input,
textarea,
select {
    font: inherit;
}

/* ============================================================
   2. LAYOUT
   ============================================================ */
.l-wrap {
    max-width: var(--w-content);
    margin-inline: auto;
    padding-inline: var(--sp-lg);
}

.l-content {
    max-width: var(--w-article);
    margin-inline: auto;
    padding: var(--sp-xl) var(--sp-lg) var(--sp-2xl);
}

.l-content--center {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding-top: var(--sp-2xl);
}

.l-main {
    min-height: 50vh;
}

.tdb-wrap {
    max-width: var(--w-content);
    margin-inline: auto;
    padding: var(--sp-xl) var(--sp-lg) var(--sp-2xl);
}

.l-wrap > .tdb-wrap {
    max-width: none;
    padding-inline: 0;
}

/* ============================================================
   3. TYPOGRAPHY
   ============================================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
    line-height: 1.4;
    font-weight: 700;
    letter-spacing: 0.01em;
}

p {
    margin-bottom: 0.8em;
}

p:last-child {
    margin-bottom: 0;
}

.entry-content h2 {
    font-size: 1.2em;
    margin: 1.8em 0 0.6em;
}

.entry-content h3 {
    font-size: 1.05em;
    margin: 1.4em 0 0.5em;
}

.entry-content p {
    margin-bottom: 1em;
}

.entry-content ul,
.entry-content ol {
    padding-left: 1.5em;
    margin-bottom: 1em;
}

.entry-content ul {
    list-style: disc;
}

.entry-content ol {
    list-style: decimal;
}

.entry-content a {
    color: var(--c-accent);
    text-decoration: underline;
}

.entry-content a:hover {
    color: var(--c-accent-dk);
}

/* ============================================================
   4. HEADER
   ============================================================ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--h-header);
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--c-border);
    transition: box-shadow 0.2s;
}

.site-header.is-scrolled {
    box-shadow: 0 2px 12px rgba(15, 23, 42, 0.08);
}

.site-header__inner {
    display: flex;
    align-items: center;
    gap: var(--sp-lg);
    height: 100%;
    max-width: var(--w-content);
    margin-inline: auto;
    padding-inline: var(--sp-lg);
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.site-logo__mark {
    transition: opacity 0.15s;
}

.site-logo:hover .site-logo__mark {
    opacity: 0.8;
}

.site-logo__text {
    display: flex;
    flex-direction: column;
    gap: 3px;
    line-height: 1;
}

.site-logo__en {
    font-family: var(--font-brand);
    font-size: 16px;
    font-weight: 700;
    color: var(--c-text);
    letter-spacing: -0.02em;
}

.site-logo__ja {
    font-size: 9px;
    font-weight: 300;
    color: var(--c-text-3);
    letter-spacing: 0.1em;
    font-family: var(--font-body);
}

/* ---- ナビ ---- */
.site-nav {
    position: relative;
    display: flex;
    align-items: center;
    margin-left: auto;
}

.site-nav__toggle {
    display: none;
    width: 40px;
    height: 40px;
    border: 1px solid var(--c-border);
    border-radius: 10px;
    background: #fff;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 4px;
    transition:
        border-color 0.15s,
        box-shadow 0.15s,
        background 0.15s;
}

.site-nav__toggle:hover {
    border-color: var(--c-accent);
    box-shadow: var(--shadow-card);
}

.site-nav__toggle-line {
    width: 16px;
    height: 1.8px;
    border-radius: 2px;
    background: var(--c-text);
    transition:
        transform 0.2s ease,
        opacity 0.2s ease;
}

.site-nav.is-open .site-nav__toggle-line:nth-child(1) {
    transform: translateY(5.8px) rotate(45deg);
}

.site-nav.is-open .site-nav__toggle-line:nth-child(2) {
    opacity: 0;
}

.site-nav.is-open .site-nav__toggle-line:nth-child(3) {
    transform: translateY(-5.8px) rotate(-45deg);
}

.site-nav__panel {
    display: flex;
    align-items: center;
    gap: var(--sp-lg);
}

.site-nav__links {
    display: flex;
    align-items: center;
    gap: 22px;
}

.site-nav__links li {
    list-style: none;
}

.site-nav__links a {
    font-size: 13px;
    font-weight: 500;
    color: var(--c-text-2);
    white-space: nowrap;
    transition: color 0.15s;
    position: relative;
    padding-bottom: 2px;
}

.site-nav__links a::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--c-accent);
    border-radius: 1px;
    transition: width 0.2s ease;
}

.site-nav__links a:hover {
    color: var(--c-accent);
}

.site-nav__links a:hover::after,
.site-nav__links .current-menu-item > a::after {
    width: 100%;
}

.site-nav__links .current-menu-item > a {
    color: var(--c-accent);
}

/* ---- 検索 ---- */
.site-nav__search {
    position: relative;
    display: flex;
    align-items: center;
}

.site-nav__search-icon {
    position: absolute;
    left: 11px;
    color: var(--c-text-3);
    pointer-events: none;
    transition: color 0.15s;
    flex-shrink: 0;
}

.site-nav__search-input {
    height: 34px;
    width: 244px;
    padding: 0 var(--sp-md) 0 34px;
    border: 1px solid var(--c-border);
    border-radius: 17px;
    background: var(--c-bg-subtle);
    color: var(--c-text);
    font-size: 12px;
    outline: none;
    transition:
        border-color 0.2s,
        width 0.25s ease,
        box-shadow 0.2s,
        background 0.2s;
}

.site-nav__search-input::placeholder {
    color: var(--c-text-3);
}

.site-nav__search-input:focus {
    border-color: var(--c-accent);
    background: #fff;
    width: 280px;
    box-shadow: 0 0 0 3px var(--c-accent-lt);
}

.site-nav__search-input:focus ~ .site-nav__search-icon,
.site-nav__search:focus-within .site-nav__search-icon {
    color: var(--c-accent);
}

/* ============================================================
   5. FRONT PAGE
   ============================================================ */
.fp-intro {
    padding: var(--sp-xl) 0 var(--sp-xl);
}

.intro-block {
    display: flex;
    gap: var(--sp-md);
    align-items: stretch;
}

.intro-block__bar {
    width: 3px;
    background: linear-gradient(to bottom, var(--c-accent), var(--c-accent-lt));
    border-radius: 2px;
    flex-shrink: 0;
}

.intro-block__body {
    flex: 1;
}

.intro-block__lead {
    font-size: 14px;
    color: var(--c-text-2);
    line-height: 1.85;
}

.intro-block__lead + .intro-block__lead {
    margin-top: 5px;
}

.fp-section {
    padding: var(--sp-xl) 0;
}

.fp-section--subtle {
    background: var(--c-bg-subtle);
}

.section-head {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: var(--sp-md);
}

.section-head__bar {
    width: 18px;
    height: 3px;
    background: var(--c-accent);
    border-radius: 2px;
    flex-shrink: 0;
}

.section-head h2 {
    font-size: 15px;
    font-weight: 700;
    color: var(--c-text);
    letter-spacing: 0.04em;
}

.fp-width-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-sm);
}

.fp-width-grid li {
    list-style: none;
}

.fp-width-grid a {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 14px 20px;
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: var(--r-md);
    min-width: 86px;
    box-shadow: var(--shadow-card);
    transition:
        border-color 0.15s,
        background 0.15s,
        box-shadow 0.15s,
        transform 0.15s;
    text-decoration: none;
}

.fp-width-grid a:hover {
    border-color: var(--c-accent);
    background: var(--c-accent-lt);
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.fp-width__num {
    font-family: var(--font-brand);
    font-size: 20px;
    font-weight: 700;
    color: var(--c-text);
    letter-spacing: -0.03em;
    line-height: 1;
    transition: color 0.15s;
}

.fp-width-grid a:hover .fp-width__num {
    color: var(--c-accent-dk);
}

.fp-width__unit {
    font-family: var(--font-brand);
    font-size: 11px;
    font-weight: 500;
    color: var(--c-text-2);
    transition: color 0.15s;
}

.fp-width-grid a:hover .fp-width__unit {
    color: var(--c-accent);
}

.fp-width__desc {
    font-size: 9.5px;
    color: var(--c-text-3);
    margin-top: 4px;
    letter-spacing: 0.04em;
}

.fp-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(158px, 1fr));
    gap: 10px;
}

.fp-card-grid li {
    list-style: none;
}

.fp-card {
    display: block;
    padding: 14px 16px 16px;
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: var(--r-md);
    box-shadow: var(--shadow-card);
    transition:
        border-color 0.15s,
        box-shadow 0.15s,
        transform 0.15s;
    text-decoration: none;
}

.fp-card:hover {
    border-color: var(--c-accent);
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.fp-card--series {
    border-top: 2.5px solid var(--c-accent);
}

.fp-card--series:hover {
    border-top-color: var(--c-accent-dk);
}

.fp-card__badge {
    display: inline-block;
    font-size: 10px;
    font-weight: 500;
    background: var(--c-accent-lt);
    color: var(--c-accent-dk);
    border-radius: 3px;
    padding: 2px 7px;
    margin-bottom: 7px;
    letter-spacing: 0.03em;
}

.fp-card__code {
    display: block;
    font-family: var(--font-brand);
    font-size: 14px;
    font-weight: 600;
    color: var(--c-accent);
    letter-spacing: -0.01em;
    margin-bottom: 4px;
    transition: color 0.15s;
}

.fp-card:hover .fp-card__code {
    color: var(--c-accent-dk);
}

.fp-card__sub {
    display: block;
    font-size: 11px;
    color: var(--c-text-2);
    line-height: 1.55;
}

/* ============================================================
   6. ENTRIES (single / page)
   ============================================================ */
.entry-header {
    margin-bottom: var(--sp-xl);
}

.entry-title {
    font-size: 1.5em;
    font-weight: 700;
    line-height: 1.3;
    color: var(--c-text);
}

.entry-meta {
    margin-top: var(--sp-sm);
    font-size: 12px;
    color: var(--c-text-3);
}

.entry-content {
    font-size: 15px;
    line-height: 1.85;
}

.entry-footer {
    margin-top: var(--sp-xl);
    padding-top: var(--sp-lg);
    border-top: 1px solid var(--c-border);
}

.archive-header {
    margin-bottom: var(--sp-xl);
}

.archive-title {
    font-size: 1.3em;
    font-weight: 700;
}

.archive-desc {
    margin-top: var(--sp-sm);
    color: var(--c-text-2);
    font-size: 14px;
}

.entry-list {
    display: flex;
    flex-direction: column;
    gap: var(--sp-sm);
}

.entry-list__item {
    list-style: none;
}

.entry-card {
    display: flex;
    align-items: baseline;
    gap: var(--sp-md);
    padding: 12px var(--sp-md);
    border: 1px solid var(--c-border);
    border-radius: var(--r-md);
    background: #fff;
    transition:
        border-color 0.15s,
        box-shadow 0.15s;
}

.entry-card:hover {
    border-color: var(--c-accent);
    box-shadow: var(--shadow-card);
}

.entry-card__date {
    font-size: 12px;
    color: var(--c-text-3);
    white-space: nowrap;
    font-family: var(--font-brand);
    flex-shrink: 0;
}

.entry-card__title {
    font-size: 14px;
    color: var(--c-text);
    font-weight: 500;
}

.pagination {
    margin-top: var(--sp-xl);
    text-align: center;
}

.pagination .nav-links {
    display: flex;
    justify-content: center;
    gap: var(--sp-sm);
}

.pagination a,
.pagination span {
    display: inline-block;
    min-width: 36px;
    height: 36px;
    line-height: 36px;
    text-align: center;
    border: 1px solid var(--c-border);
    border-radius: var(--r-sm);
    font-size: 13px;
    transition: all 0.15s;
}

.pagination a:hover {
    border-color: var(--c-accent);
    color: var(--c-accent);
}

.pagination .current {
    background: var(--c-accent);
    color: #fff;
    border-color: var(--c-accent);
}

.no-results {
    color: var(--c-text-2);
}

/* ============================================================
   7. 404
   ============================================================ */
.not-found {
    padding: var(--sp-2xl) 0;
}

.not-found__code {
    font-family: var(--font-brand);
    font-size: 80px;
    font-weight: 700;
    color: var(--c-accent-lt);
    line-height: 1;
    margin-bottom: var(--sp-sm);
    letter-spacing: -0.04em;
}

.not-found__title {
    font-size: 1.4em;
    font-weight: 700;
    margin-bottom: var(--sp-md);
}

.not-found__text {
    color: var(--c-text-2);
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: var(--sp-xl);
}

.not-found__actions {
    display: flex;
    justify-content: center;
    gap: var(--sp-md);
}

/* ============================================================
   8. BUTTON
   ============================================================ */
.btn {
    display: inline-block;
    padding: 10px 24px;
    border-radius: var(--r-md);
    font-size: 14px;
    font-weight: 500;
    transition: all 0.15s;
    white-space: nowrap;
}

.btn--primary {
    background: var(--c-accent);
    color: #fff;
}

.btn--primary:hover {
    background: var(--c-accent-dk);
    box-shadow: var(--shadow-hover);
}

.btn--outline {
    border: 1px solid var(--c-border);
    color: var(--c-text-2);
}

.btn--outline:hover {
    border-color: var(--c-accent);
    color: var(--c-accent);
}

/* ============================================================
   9. PRE-FOOTER
   ============================================================ */
.pre-footer {
    border-top: 1px solid var(--c-border);
    background: var(--c-bg-warm);
    min-height: 20px;
}

.pre-footer__inner {
    max-width: var(--w-content);
    margin-inline: auto;
    padding: var(--sp-xl) var(--sp-lg);
}

.pre-footer__inner:empty {
    padding: 0;
}

/* ============================================================
   10. FOOTER
   ============================================================ */
.site-footer {
    background: var(--c-navy);
    padding: 28px 0 22px;
}

.site-footer__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-lg);
    max-width: var(--w-content);
    margin-inline: auto;
    padding-inline: var(--sp-lg);
    flex-wrap: wrap;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    transition: opacity 0.15s;
}

.footer-logo:hover {
    opacity: 0.8;
}

.footer-logo__text {
    display: flex;
    flex-direction: column;
    gap: 3px;
    line-height: 1;
}

.footer-logo__en {
    font-family: var(--font-brand);
    font-size: 14px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    letter-spacing: -0.01em;
}

.footer-logo__ja {
    font-size: 9px;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.35);
    letter-spacing: 0.1em;
    font-family: var(--font-body);
}

.footer-nav {
    display: flex;
    gap: var(--sp-lg);
    flex-wrap: wrap;
}

.footer-nav ul {
    display: flex;
    gap: var(--sp-lg);
    flex-wrap: wrap;
    list-style: none;
}

.footer-nav a,
.footer-nav ul a {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.45);
    transition: color 0.15s;
}

.footer-nav a:hover,
.footer-nav ul a:hover {
    color: rgba(255, 255, 255, 0.85);
}

.footer-copy {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.25);
    font-family: var(--font-brand);
    white-space: nowrap;
}

/* ============================================================
   11. PLUGIN COMPAT
   ============================================================ */
.tdb-card-code {
    color: var(--c-accent) !important;
}

.tdb-device-list li a:hover {
    background: var(--c-accent-lt) !important;
    border-color: var(--c-accent) !important;
    color: var(--c-accent) !important;
}

.tdb-caution {
    border-left-color: #f0b429;
}

.tdb-cta {
    border-radius: var(--r-md) !important;
    font-size: 13px !important;
}

/* ============================================================
   12. RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
    body.is-menu-open {
        overflow: hidden;
    }

    .site-header__inner {
        padding-inline: var(--sp-md);
        gap: 12px;
    }

    .site-logo__en {
        font-size: 14px;
    }

    .site-logo__ja {
        display: none;
    }

    .site-nav {
        margin-left: auto;
    }

    .site-nav__toggle {
        display: flex;
        position: relative;
        z-index: 2;
    }

    .site-nav__panel {
        display: none;
        position: absolute;
        top: calc(100% + 10px);
        right: 0;
        width: min(320px, calc(100vw - 32px));
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
        padding: 14px;
        background: #fff;
        border: 1px solid var(--c-border);
        border-radius: var(--r-lg);
        box-shadow:
            0 18px 40px rgba(15, 23, 42, 0.12),
            0 4px 10px rgba(15, 23, 42, 0.06);
    }

    .site-nav.is-open .site-nav__panel {
        display: flex;
    }

    .site-nav__links {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
    }

    .site-nav__links li + li {
        border-top: 1px solid var(--c-border);
    }

    .site-nav__links a {
        display: block;
        padding: 12px 2px;
        font-size: 14px;
        color: var(--c-text);
    }

    .site-nav__links a::after {
        display: none;
    }

    .site-nav__search {
        width: 100%;
    }

    .site-nav__search-input {
        width: 100%;
        height: 40px;
        font-size: 13px;
    }

    .site-nav__search-input:focus {
        width: 100%;
    }

    .fp-width-grid a {
        min-width: 72px;
        padding: 12px 14px;
    }

    .fp-width__num {
        font-size: 18px;
    }

    .fp-card-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }

    .l-content {
        padding-inline: var(--sp-md);
    }

    .site-footer__inner {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--sp-md);
    }

    .footer-copy {
        order: 3;
    }
}

@media (max-width: 480px) {
    .fp-width-grid {
        gap: var(--sp-xs);
    }

    .fp-width-grid a {
        min-width: 64px;
        padding: 10px 8px;
    }

    .fp-card-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .entry-card {
        flex-direction: column;
        gap: var(--sp-xs);
    }

    .entry-card__date {
        font-size: 11px;
    }
}

/* ============================================================
   13. BREADCRUMB
   tape / device ページのパンくず（single.php で出力）
   ============================================================ */
.breadcrumb {
    padding: var(--sp-sm) 0;
    margin-bottom: var(--sp-md);
    border-bottom: 1px solid var(--c-border);
}

.breadcrumb__list {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 2px 0;
    list-style: none;
    padding: 0;
    margin: 0;
}

.breadcrumb__item {
    display: flex;
    align-items: center;
    font-size: 11px;
    color: var(--c-text-3);
    line-height: 1.6;
}

.breadcrumb__item a {
    color: var(--c-text-3);
    text-decoration: none;
    padding: 4px 2px; /* タップ領域を広める */
    transition: color 0.15s;
}

.breadcrumb__item a:hover {
    color: var(--c-accent);
}

.breadcrumb__sep {
    color: var(--c-border);
    font-size: 12px;
    margin: 0 3px;
    user-select: none;
    line-height: 1;
}

.breadcrumb__item--current {
    color: var(--c-text-2);
    font-weight: 500;
    /* 最後の要素は現在ページなのでリンクなし */
}

/* ============================================================
   14. CTA UI 改善（プラグイン出力クラスのオーバーライド）
   tepra-db.php の inline_css() が出力する .tdb-cta-* 等を
   テーマカラー・スマホタップ領域に合わせて上書き。
   ============================================================ */

/* ---- 補助リンク: 小テキストからバナー風導線へ ---- */
/* 「価格重視なら互換テープも確認する」をより視認しやすく */
.tdb-cta-link {
    display: block !important;
    background: var(--c-bg-warm) !important;
    border: 1px solid var(--c-border) !important;
    border-left: 3px solid var(--c-warm) !important;
    border-radius: var(--r-sm) !important;
    padding: 10px 14px !important;
    margin: 0.8em 0 1.4em !important;
    font-size: 13px !important;
    font-weight: 500 !important;
    color: var(--c-text-2) !important;
}

.tdb-cta-link__anchor {
    color: var(--c-warm) !important;
    text-decoration: none !important;
    font-weight: 600 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    gap: 8px !important;
}

/* 末尾に下向き矢印をつけてアンカーリンクであることを示す */
.tdb-cta-link__anchor::after {
    content: '↓';
    font-size: 12px;
    opacity: 0.5;
    flex-shrink: 0;
}

.tdb-cta-link__anchor:hover {
    opacity: 0.8 !important;
}

/* ---- 純正CTAエリア: スマホでフルタップ ---- */
@media (max-width: 600px) {
    .tdb-cta__inner {
        flex-direction: column !important;
        align-items: stretch !important;
    }
    .tdb-cta__btn {
        width: 100% !important;
        text-align: center !important;
        align-self: stretch !important;
        padding: 13px 20px !important; /* タップ領域を縦に拡大 */
        font-size: 1em !important;
    }
    /* 補助リンクのタップ領域も拡大 */
    .tdb-cta-link {
        padding: 13px 16px !important;
    }
}

/* ---- 互換セクション: 背景をwarm系にして純正CTAと視覚差をつける ---- */
.tdb-compatible {
    background: var(--c-bg-warm) !important;
}

/* 互換CTAボタンのスマホ対応 */
@media (max-width: 600px) {
    .tdb-compatible__cta {
        flex-direction: column !important;
        align-items: stretch !important;
    }
    .tdb-cta__btn--compatible {
        width: 100% !important;
        text-align: center !important;
        padding: 12px 20px !important;
        font-size: .95em !important;
    }
}

/* ============================================================
   15. 一覧ページの可読性改善
   width / series / device ページ（tepra-db.php が .tdb-wrap で出力）
   ============================================================ */

/* ---- グループ見出し h2 に適切な余白と視覚的強さを付与 ---- */
/* .tdb-compatible__heading は内部スタイルが別途あるため除外 */
.tdb-wrap h2:not(.tdb-compatible__heading) {
    font-size: 1em;
    font-weight: 700;
    color: var(--c-text);
    padding-bottom: var(--sp-sm);
    border-bottom: 1px solid var(--c-border);
    margin-top: 2.2em;
    margin-bottom: 0.9em;
    letter-spacing: 0.02em;
}

/* h1 の直後のみ上マージンを抑える */
.tdb-wrap h1 + h2:not(.tdb-compatible__heading) {
    margin-top: 0.8em;
}

/* ---- 対応機種タグリスト: スマホでタップしやすく ---- */
.tdb-device-list {
    gap: 6px !important;
}

.tdb-device-list li a {
    padding: 7px 14px !important;
    min-height: 38px !important;
    display: inline-flex !important;
    align-items: center !important;
}

/* ---- テープカード: スマホのタップ領域を確保 ---- */
@media (max-width: 600px) {
    .tdb-card a {
        padding: 14px 16px !important;
    }
    /* セクション間の余白をやや詰める（縦スクロール緩和） */
    .tdb-wrap h2:not(.tdb-compatible__heading) {
        margin-top: 1.6em;
    }
}

/* ---- フロントページのカード: スマホのタップ領域 ---- */
@media (max-width: 600px) {
    .fp-card {
        min-height: 64px; /* タップエリアを確保 */
    }
    /* 幅グリッドのタップエリア維持 */
    .fp-width-grid a {
        min-height: 72px;
    }
}