/* =================================================
   低温環境対応シール・極低温ラベル
   ================================================= */

:root {
    --lt-navy: #0b355f;
    --lt-blue: #1975a9;
    --lt-ice: #eef6fb;
    --lt-pale: #f7fafc;
    --lt-line: rgba(6, 37, 78, 0.12);
    --lt-warm: #f7f2e8;
    --lt-alert: #b85f2b;
}

/* Hero
   ------------------------------------------------- */
.lt-hero {
    position: relative;
    min-height: 680px;
    display: flex;
    align-items: center;
    color: var(--color-white);
    background:
        linear-gradient(90deg, rgba(6, 37, 78, 0.76), rgba(6, 37, 78, 0.48)),
        url('../../images/label-lineup/low-temperature-label/top_hero.webp') center right / cover no-repeat;
}

.lt-hero__inner {
    width: 100%;
    padding: 18rem var(--space-md) 12rem;
}

.lt-hero__eyebrow,
.lt-kicker,
.lt-heading > p,
.lt-bottom-cta__inner > div > p {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    margin: 0 0 var(--space-sm);
    padding: 0.45rem 0.9rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.14);
    color: var(--color-white);
    font-size: var(--font-sm);
    font-weight: 700;
    letter-spacing: 0;
}

.lt-hero h1 {
    max-width: 980px;
    margin: 0;
    color: var(--color-white);
    font-size: var(--font-5xl);
    font-weight: 700;
    line-height: 1.35;
    letter-spacing: 0;
}

.lt-hero__lead {
    max-width: 820px;
    margin: var(--space-md) 0 0;
    color: rgba(255, 255, 255, 0.94);
    font-size: var(--font-xl);
    line-height: 1.85;
}

.lt-hero__actions,
.lt-bottom-cta__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
}

.lt-hero__actions .btn,
.lt-bottom-cta__actions .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.lt-hero__actions .btn--outline,
.lt-bottom-cta__actions .btn--outline {
    border-color: rgba(255, 255, 255, 0.82);
    color: var(--color-white);
    background: rgba(255, 255, 255, 0.08);
}

.lt-hero__actions .btn--outline:hover,
.lt-bottom-cta__actions .btn--outline:hover {
    background: rgba(255, 255, 255, 0.18);
}

.lt-hero__facts {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    max-width: 860px;
    margin: var(--space-lg) 0 0;
    padding: 0;
    list-style: none;
}

.lt-hero__facts li {
    min-width: 150px;
    padding: 1rem 1.2rem;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.9);
    color: var(--lt-navy);
}

.lt-hero__facts strong,
.lt-hero__facts span {
    display: block;
}

.lt-hero__facts strong {
    font-size: var(--font-2xl);
    line-height: 1.2;
}

.lt-hero__facts span {
    margin-top: 0.35rem;
    font-size: var(--font-sm);
    font-weight: 700;
}

.lt-breadcrumb {
    padding: var(--space-md) 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    background: var(--color-white);
}

.lt-breadcrumb .breadcrumb {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin: 0;
}

/* Common
   ------------------------------------------------- */
.lt-heading {
    max-width: 860px;
    margin: 0 auto var(--space-2xl);
    text-align: center;
}

.lt-heading > p,
.lt-kicker {
    background: rgba(25, 117, 169, 0.1);
    color: var(--lt-blue);
}

.lt-heading h2,
.lt-intro h2,
.lt-performance h2,
.lt-printing h2,
.lt-bottom-cta h2 {
    margin: 0;
    color: var(--lt-navy);
    font-size: var(--font-4xl);
    font-weight: 700;
    line-height: 1.45;
    letter-spacing: 0;
}

.lt-heading > span {
    display: block;
    margin-top: var(--space-sm);
    color: var(--color-text);
    font-size: var(--font-md);
    line-height: 1.9;
}

.lt-intro,
.lt-problem,
.lt-usecases,
.lt-scene,
.lt-checklist,
.lt-related,
.lt-faq,
.lt-performance,
.lt-printing,
.lt-choice,
.lt-flow {
    padding: var(--space-3xl) 0;
}

/* Intro
   ------------------------------------------------- */
.lt-intro {
    background: var(--color-white);
}

.lt-intro__layout {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(420px, 1.05fr);
    gap: var(--space-2xl);
    align-items: center;
}

.lt-intro__content p:not(.lt-kicker) {
    margin: var(--space-md) 0 0;
    color: var(--color-text);
    font-size: var(--font-lg);
    line-height: 1.9;
}

.lt-intro__points {
    display: grid;
    gap: var(--space-sm);
    margin: var(--space-lg) 0 0;
    padding: 0;
    list-style: none;
}

.lt-intro__points li {
    display: flex;
    gap: 0.8rem;
    align-items: flex-start;
    color: var(--color-text);
    line-height: 1.8;
}

.lt-intro__points i {
    margin-top: 0.3rem;
    color: var(--lt-blue);
}

.lt-intro__visual {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: var(--space-sm);
    align-items: stretch;
}

.lt-intro__image {
    position: relative;
    min-height: 220px;
    margin: 0;
    overflow: hidden;
    border-radius: 8px;
    background: var(--lt-ice);
    box-shadow: 0 18px 42px rgba(6, 37, 78, 0.12);
}

.lt-intro__image--large {
    min-height: 420px;
}

.lt-intro__image img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}

.lt-intro__image figcaption {
    position: absolute;
    left: var(--space-sm);
    right: var(--space-sm);
    bottom: var(--space-sm);
    padding: 0.7rem 0.9rem;
    border-radius: 8px;
    background: rgba(6, 37, 78, 0.82);
    color: var(--color-white);
    font-size: var(--font-sm);
    font-weight: 700;
}

/* Problem / Usecase
   ------------------------------------------------- */
.lt-problem,
.lt-checklist,
.lt-faq {
    background: var(--lt-ice);
}

.lt-problem__grid,
.lt-usecases__grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-md);
}

.lt-problem__grid article,
.lt-usecases__grid article,
.lt-checklist__grid li,
.lt-related__grid > a {
    min-height: 220px;
    padding: var(--space-lg);
    border: 1px solid var(--lt-line);
    border-radius: 8px;
    background: var(--color-white);
    box-shadow: 0 14px 34px rgba(6, 37, 78, 0.06);
}

.lt-problem__grid i {
    display: inline-grid;
    width: 4.6rem;
    height: 4.6rem;
    place-items: center;
    border-radius: 50%;
    background: rgba(25, 117, 169, 0.1);
    color: var(--lt-blue);
    font-size: 2rem;
}

.lt-problem__grid h3,
.lt-usecases__grid h3,
.lt-checklist__grid h3,
.lt-flow__list h3,
.lt-related__grid h3,
.lt-scene-card h3 {
    margin: var(--space-sm) 0 0;
    color: var(--lt-navy);
    font-size: var(--font-xl);
    font-weight: 700;
    line-height: 1.45;
    letter-spacing: 0;
}

.lt-problem__grid p,
.lt-usecases__grid p,
.lt-checklist__grid p,
.lt-flow__list p,
.lt-related__grid p,
.lt-scene-card p {
    margin: var(--space-xs) 0 0;
    color: var(--color-text);
    font-size: var(--font-md);
    line-height: 1.8;
}

.lt-usecases__grid article > span,
.lt-checklist__grid li > span,
.lt-flow__list li > span {
    color: var(--lt-blue);
    font-size: var(--font-md);
    font-weight: 700;
}

/* Performance
   ------------------------------------------------- */
.lt-performance {
    background: var(--lt-navy);
    scroll-margin-top: 9rem;
}

.lt-performance__layout,
.lt-printing__layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(380px, 0.86fr);
    gap: var(--space-2xl);
    align-items: center;
}

.lt-performance h2,
.lt-performance__content > p {
    color: var(--color-white);
}

.lt-performance__content > p:not(.lt-kicker),
.lt-printing__content > p:not(.lt-kicker) {
    margin: var(--space-md) 0 0;
    font-size: var(--font-lg);
    line-height: 1.9;
}

.lt-spec-list {
    margin: var(--space-lg) 0 0;
}

.lt-spec-list div {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: var(--space-md);
    padding: var(--space-sm) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.lt-spec-list dt {
    color: #a8dcef;
    font-weight: 700;
}

.lt-spec-list dd {
    margin: 0;
    color: var(--color-white);
    line-height: 1.75;
}

.lt-test-panel {
    overflow: hidden;
    padding: var(--space-xl);
    border-radius: 8px;
    background: var(--color-white);
    box-shadow: 0 22px 48px rgba(0, 0, 0, 0.16);
}

.lt-test-panel__image {
    width: calc(100% + var(--space-xl) * 2);
    height: auto;
    aspect-ratio: 4 / 3;
    display: block;
    margin: calc(var(--space-xl) * -1) calc(var(--space-xl) * -1) var(--space-lg);
    object-fit: cover;
    background: var(--lt-ice);
}

.lt-test-panel__label {
    margin: 0;
    color: var(--lt-blue);
    font-weight: 700;
}

.lt-test-panel h3 {
    margin: var(--space-xs) 0 0;
    color: var(--lt-navy);
    font-size: var(--font-2xl);
    font-weight: 700;
    line-height: 1.45;
}

.lt-test-panel__cycle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-xs);
    margin: var(--space-md) 0;
    padding: var(--space-sm);
    border-radius: 8px;
    background: var(--lt-ice);
    color: var(--lt-blue);
    font-weight: 700;
}

.lt-test-panel table,
.lt-choice__table {
    width: 100%;
    border-collapse: collapse;
}

.lt-test-panel th,
.lt-test-panel td,
.lt-choice__table th,
.lt-choice__table td {
    padding: 1.2rem;
    border: 1px solid var(--lt-line);
    text-align: left;
    vertical-align: top;
    line-height: 1.75;
}

.lt-test-panel thead th,
.lt-choice__table thead th {
    background: #e2f2f8;
    color: var(--lt-navy);
}

.lt-test-panel__note {
    margin: var(--space-sm) 0 0;
    color: var(--color-text);
    font-size: var(--font-sm);
    line-height: 1.75;
}

/* Scene
   ------------------------------------------------- */
.lt-scene {
    background: var(--lt-pale);
}

.lt-scene__grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-lg);
}

.lt-scene-card {
    overflow: hidden;
    border: 1px solid var(--lt-line);
    border-radius: 8px;
    background: var(--color-white);
    box-shadow: 0 16px 36px rgba(6, 37, 78, 0.08);
}

.lt-scene-card img {
    width: 100%;
    aspect-ratio: 16 / 10;
    display: block;
    object-fit: cover;
    background: var(--lt-ice);
}

.lt-scene-card__body {
    padding: var(--space-md);
}

.lt-scene-card__body span {
    display: inline-block;
    width: fit-content;
    padding: 0.3rem 0.8rem;
    border-radius: 999px;
    background: rgba(25, 117, 169, 0.1);
    color: var(--lt-blue);
    font-size: var(--font-sm);
    font-weight: 700;
}

/* Printing / Comparison
   ------------------------------------------------- */
.lt-printing {
    background: var(--lt-warm);
}

.lt-printing__image {
    aspect-ratio: 4 / 3;
    overflow: hidden;
    border-radius: 8px;
    background: var(--color-white);
    box-shadow: 0 18px 42px rgba(6, 37, 78, 0.1);
}

.lt-printing__image img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}

.lt-printing__content ul {
    display: grid;
    gap: var(--space-xs);
    margin: var(--space-lg) 0 0;
    padding: 0;
    list-style: none;
}

.lt-printing__content li {
    display: flex;
    gap: 0.8rem;
    align-items: flex-start;
    color: var(--color-text);
    line-height: 1.8;
}

.lt-printing__content li i {
    margin-top: 0.3rem;
    color: var(--lt-blue);
}

.lt-warning {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
    padding: var(--space-md);
    border-left: 4px solid var(--lt-alert);
    border-radius: 0 8px 8px 0;
    background: #fff7f0;
}

.lt-warning i {
    color: var(--lt-alert);
    font-size: 2rem;
}

.lt-warning p {
    margin: 0;
    color: var(--color-text);
    line-height: 1.8;
}

.lt-choice,
.lt-flow {
    background: var(--color-white);
}

.lt-choice__table-wrap {
    overflow-x: auto;
    border: 1px solid var(--lt-line);
    border-radius: 8px;
    background: var(--color-white);
    box-shadow: 0 16px 36px rgba(6, 37, 78, 0.08);
}

.lt-choice__table {
    min-width: 760px;
}

.lt-choice__table tbody th {
    width: 180px;
    background: var(--lt-ice);
    color: var(--lt-navy);
}

.lt-choice__table a {
    color: var(--lt-blue);
    font-weight: 700;
    text-decoration: underline;
}

/* Checklist / Flow / Related / FAQ
   ------------------------------------------------- */
.lt-checklist__grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-md);
    margin: 0;
    padding: 0;
    list-style: none;
}

.lt-checklist__grid li {
    min-height: 160px;
}

.lt-checklist__cta {
    margin-top: var(--space-xl);
    text-align: center;
}

.lt-flow__list {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin: 0;
    padding: 0;
    list-style: none;
}

.lt-flow__list li {
    min-height: 210px;
    padding: var(--space-lg);
    border-top: 3px solid var(--lt-blue);
    border-right: 1px solid var(--lt-line);
    background: var(--color-white);
}

.lt-flow__list li:first-child {
    border-left: 1px solid var(--lt-line);
}

.lt-related {
    background: var(--lt-warm);
}

.lt-related__grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-lg);
}

.lt-related__grid > a {
    display: block;
    color: inherit;
    text-decoration: none;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.lt-related__grid > a:hover {
    transform: translateY(-5px);
    box-shadow: 0 22px 48px rgba(6, 37, 78, 0.12);
}

.lt-related__grid > a > i {
    color: var(--lt-blue);
    font-size: 2.4rem;
}

.lt-related__grid > a > span {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    margin-top: var(--space-sm);
    color: var(--lt-blue);
    font-weight: 700;
}

.lt-faq__list {
    max-width: 980px;
    margin: 0 auto;
    border-radius: 8px;
    overflow: hidden;
    background: var(--color-white);
    box-shadow: 0 16px 36px rgba(6, 37, 78, 0.08);
}

.lt-faq details {
    border-bottom: 1px solid var(--lt-line);
}

.lt-faq details:last-child {
    border-bottom: none;
}

.lt-faq summary {
    padding: var(--space-lg);
    color: var(--lt-navy);
    font-size: var(--font-lg);
    font-weight: 700;
    line-height: 1.6;
    cursor: pointer;
}

.lt-faq details p {
    margin: 0;
    padding: 0 var(--space-lg) var(--space-lg);
    color: var(--color-text);
    font-size: var(--font-md);
    line-height: 1.9;
}

.lt-bottom-cta {
    padding: var(--space-3xl) 0;
    background: linear-gradient(135deg, #0b355f 0%, #16528c 100%);
    color: var(--color-white);
}

.lt-bottom-cta__inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: var(--space-2xl);
    align-items: center;
}

.lt-bottom-cta h2,
.lt-bottom-cta__inner > div > span {
    color: var(--color-white);
}

.lt-bottom-cta__inner > div > span {
    display: block;
    margin-top: var(--space-sm);
    line-height: 1.9;
}

.lt-bottom-cta__actions {
    flex-direction: column;
    min-width: 280px;
    margin-top: 0;
}

/* Responsive
   ------------------------------------------------- */
@media (max-width: 1100px) {
    .lt-problem__grid,
    .lt-usecases__grid,
    .lt-scene__grid,
    .lt-flow__list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .lt-performance__layout,
    .lt-printing__layout,
    .lt-bottom-cta__inner,
    .lt-intro__layout {
        grid-template-columns: 1fr;
    }

}

@media (max-width: 768px) {
    .lt-hero {
        min-height: auto;
        background-position: center right;
    }

    .lt-hero__inner {
        padding: 12rem var(--space-md) 7rem;
    }

    .lt-hero h1 {
        font-size: var(--font-4xl);
    }

    .lt-hero__lead {
        font-size: var(--font-lg);
    }

    .lt-heading h2,
    .lt-intro h2,
    .lt-performance h2,
    .lt-printing h2,
    .lt-bottom-cta h2 {
        font-size: var(--font-3xl);
    }

    .lt-intro__visual {
        grid-template-columns: 1fr;
    }

    .lt-intro__image,
    .lt-intro__image--large {
        min-height: 260px;
    }

    .lt-checklist__grid,
    .lt-related__grid {
        grid-template-columns: 1fr;
    }

    .lt-hero__actions .btn,
    .lt-bottom-cta__actions .btn {
        width: 100%;
    }

    .lt-spec-list div {
        grid-template-columns: 1fr;
        gap: 0.4rem;
    }

    .lt-bottom-cta__actions {
        min-width: 0;
    }
}

@media (max-width: 576px) {
    .lt-intro,
    .lt-problem,
    .lt-usecases,
    .lt-scene,
    .lt-checklist,
    .lt-related,
    .lt-faq,
    .lt-performance,
    .lt-printing,
    .lt-choice,
    .lt-flow {
        padding: var(--space-2xl) 0;
    }

    .lt-problem__grid,
    .lt-usecases__grid,
    .lt-scene__grid,
    .lt-flow__list {
        grid-template-columns: 1fr;
    }

    .lt-test-panel,
    .lt-problem__grid article,
    .lt-usecases__grid article,
    .lt-checklist__grid li,
    .lt-related__grid > a,
    .lt-scene-card__body {
        padding: var(--space-md);
    }

    .lt-test-panel__cycle {
        flex-direction: column;
        align-items: flex-start;
    }

    .lt-flow__list li,
    .lt-flow__list li:first-child {
        border: 1px solid var(--lt-line);
        border-top: 3px solid var(--lt-blue);
    }
}