:root {
    --tt-navy: #07182d;
    --tt-navy-soft: #0d2945;
    --tt-blue: #0c6f9d;
    --tt-cyan: #36b5c7;
    --tt-gold: #cba174;
    --tt-ink: #142235;
    --tt-muted: #637286;
    --tt-line: #dce6ed;
    --tt-soft: #f3f7fa;
    --tt-white: #ffffff;
    --tt-shadow: 0 18px 48px rgba(11, 42, 66, 0.09);
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--tt-soft);
    color: var(--tt-ink);
    font-family: "Noto Sans SC", "Noto Sans TC", Arial, sans-serif;
    line-height: 1.7;
}

.tt-page,
.tt-page * {
    box-sizing: border-box;
}

.tt-container {
    width: min(1180px, calc(100% - 48px));
    margin: 0 auto;
}

@media (min-width: 1200px) {
    body[data-page-mode="about"] .tt-section .tt-container {
        width: min(1360px, calc(100% - 64px));
    }
}

.tt-hero {
    position: relative;
    min-height: 690px;
    padding: 178px 0 110px;
    overflow: hidden;
    color: var(--tt-white);
    background: #07182d;
}

.tt-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(90deg, rgba(4, 15, 29, 0.94) 0%, rgba(5, 20, 36, 0.83) 42%, rgba(6, 24, 42, 0.32) 72%, rgba(6, 20, 36, 0.16) 100%),
        linear-gradient(180deg, rgba(5, 18, 33, 0.3) 0%, rgba(7, 24, 45, 0.12) 58%, rgba(7, 24, 45, 0.72) 100%),
        url("../assets/images/sleep-think-tank-intelligence-hero-20260722.webp");
    background-position: center center;
    background-size: cover;
    background-repeat: no-repeat;
}

.tt-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(circle at 82% 34%, rgba(203, 161, 116, 0.14), transparent 18%),
        linear-gradient(180deg, transparent 72%, rgba(6, 20, 36, 0.38) 100%);
}

.tt-hero__inner {
    position: relative;
    z-index: 1;
    max-width: 880px;
}

.tt-hero:not(.tt-hero--compact) .tt-hero__inner {
    width: min(1280px, calc(100% - 48px));
    max-width: 1280px;
}

.tt-hero:not(.tt-hero--compact) .tt-hero__subtitle {
    max-width: 1180px;
}

.tt-hero--compact {
    min-height: 460px;
    padding: 142px 0 68px;
}

.tt-hero--compact .tt-hero__inner {
    max-width: 980px;
}

.tt-hero--compact h1 {
    font-size: clamp(3.2rem, 6vw, 5.2rem);
}

.tt-hero--compact .tt-hero__subtitle {
    max-width: 900px;
    margin-top: 22px;
}

.tt-hero--compact .tt-hero__actions {
    margin-top: 28px;
}

.tt-kicker,
.tt-section-kicker {
    margin: 0 0 18px;
    color: var(--tt-gold);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.tt-hero h1 {
    margin: 0;
    font-family: "Noto Serif SC", "Noto Serif TC", serif;
    font-size: clamp(3.4rem, 7vw, 6.4rem);
    line-height: 1.05;
    letter-spacing: -0.045em;
    text-shadow: 0 14px 38px rgba(0, 0, 0, 0.38);
}

.tt-hero__subtitle {
    max-width: 800px;
    margin: 30px 0 0;
    color: rgba(255, 255, 255, 0.76);
    font-size: clamp(1.05rem, 2vw, 1.28rem);
    line-height: 1.85;
}

.tt-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 38px;
}

.tt-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 23px;
    border: 1px solid transparent;
    border-radius: 7px;
    color: #fff;
    font-weight: 700;
    text-decoration: none;
    transition: transform 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}

.tt-button:hover {
    transform: translateY(-2px);
}

.tt-button--primary {
    background: var(--tt-cyan);
    color: #062038;
}

.tt-button--ghost {
    border-color: rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.tt-hero__badges {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 48px;
}

.tt-hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 13px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.055);
    color: rgba(255, 255, 255, 0.82);
    font-size: 0.86rem;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.tt-hero__badge::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--tt-gold);
}

.tt-section {
    padding: 96px 0;
}

.tt-section--white {
    background: var(--tt-white);
}

.tt-section--library {
    background: #edf4f7;
}

.tt-section--navy {
    color: var(--tt-ink);
    border-top: 1px solid #dce8ed;
    border-bottom: 1px solid #dce8ed;
    background:
        linear-gradient(180deg, rgba(246, 250, 251, 0.32), rgba(249, 251, 251, 0.18) 52%, rgba(250, 252, 252, 0.3)),
        url("../assets/images/sleep-think-tank-weekly-background-20260722.webp") center bottom / cover no-repeat;
}

.tt-section--research {
    background:
        radial-gradient(circle at 86% 12%, rgba(37, 99, 235, 0.07), transparent 25%),
        radial-gradient(circle at 10% 88%, rgba(203, 161, 116, 0.09), transparent 23%),
        linear-gradient(180deg, #faf9f6 0%, #f4f8fa 100%);
}

.tt-section-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 36px;
    margin-bottom: 42px;
}

.tt-section-title {
    max-width: 760px;
    margin: 0;
    color: var(--tt-ink);
    font-family: "Noto Serif SC", "Noto Serif TC", serif;
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.3;
}

.tt-section--navy .tt-section-title {
    color: var(--tt-ink);
}

.tt-section-desc {
    max-width: 620px;
    margin: 14px 0 0;
    color: var(--tt-muted);
}

.tt-section--navy .tt-section-desc {
    color: var(--tt-muted);
}

.tt-update-chip {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 10px 16px;
    border: 1px solid #c9dfe6;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.78);
    color: #436175;
    font-size: 0.82rem;
    white-space: nowrap;
    box-shadow: 0 8px 22px rgba(20, 62, 80, 0.06);
}

.tt-update-chip::before {
    content: "";
    width: 8px;
    height: 8px;
    flex: 0 0 auto;
    border-radius: 50%;
    background: var(--tt-cyan);
    box-shadow: 0 0 0 5px rgba(54, 181, 199, 0.12);
}

.tt-current-issue {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 44px;
    align-items: end;
    margin-bottom: 30px;
    padding: 42px 44px;
    overflow: hidden;
    border: 1px solid rgba(91, 171, 193, 0.26);
    border-radius: 24px;
    color: #fff;
    background:
        radial-gradient(circle at 88% 18%, rgba(54, 181, 199, 0.26), transparent 28%),
        radial-gradient(circle at 5% 100%, rgba(203, 161, 116, 0.14), transparent 25%),
        linear-gradient(130deg, #07182d 0%, #0a2a47 56%, #0d4a65 100%);
    box-shadow: 0 24px 56px rgba(7, 24, 45, 0.19);
}

#weekly-snapshot {
    background:
        linear-gradient(180deg, rgba(247, 251, 252, 0.7) 0%, rgba(251, 253, 253, 0.9) 32%, rgba(244, 249, 250, 0.96) 100%),
        url("../assets/images/sleep-think-tank-weekly-background-20260722.webp") center top / 100% auto no-repeat,
        #f4f9fa;
}

.tt-current-issue::before {
    content: "";
    position: absolute;
    top: 0;
    left: 44px;
    width: 108px;
    height: 4px;
    border-radius: 0 0 999px 999px;
    background: linear-gradient(90deg, var(--tt-gold), #efd3a8);
}

.tt-current-issue::after {
    content: "";
    position: absolute;
    right: -76px;
    bottom: -112px;
    width: 290px;
    height: 290px;
    border: 1px solid rgba(255, 255, 255, 0.11);
    border-radius: 50%;
    box-shadow:
        0 0 0 36px rgba(255, 255, 255, 0.035),
        0 0 0 74px rgba(255, 255, 255, 0.02);
}

.tt-current-issue__content,
.tt-current-issue .tt-document-actions {
    position: relative;
    z-index: 1;
}

.tt-current-issue__eyebrow,
.tt-archive-card__eyebrow {
    margin: 0 0 10px;
    color: var(--tt-gold);
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.tt-current-issue h3 {
    margin: 0;
    font-family: "Noto Serif SC", "Noto Serif TC", serif;
    font-size: clamp(1.55rem, 3vw, 2.15rem);
    line-height: 1.35;
}

.tt-current-issue__summary {
    max-width: 750px;
    margin: 12px 0 0;
    color: rgba(255, 255, 255, 0.72);
}

.tt-current-issue__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 20px;
    margin-top: 18px;
    color: rgba(255, 255, 255, 0.56);
    font-size: 0.78rem;
}

.tt-current-issue__meta span:empty {
    display: none;
}

.tt-document-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

.tt-document-link {
    display: inline-flex;
    min-height: 42px;
    align-items: center;
    justify-content: center;
    padding: 0 17px;
    border: 1px solid var(--tt-cyan);
    border-radius: 6px;
    background: var(--tt-cyan);
    color: #062038;
    font-size: 0.84rem;
    font-weight: 800;
    text-decoration: none;
    transition: transform 0.2s ease, background 0.2s ease;
}

.tt-document-link:hover {
    transform: translateY(-2px);
}

.tt-document-link--secondary {
    border-color: #bcd1dc;
    background: transparent;
    color: var(--tt-blue);
}

.tt-current-issue .tt-document-link--secondary {
    border-color: rgba(255, 255, 255, 0.32);
    color: #fff;
}

.tt-document-note {
    display: inline-block;
    max-width: 250px;
    color: var(--tt-muted);
    font-size: 0.8rem;
    line-height: 1.6;
}

.tt-current-issue .tt-document-note {
    color: rgba(255, 255, 255, 0.62);
    text-align: right;
}

.tt-weekly-overview {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(390px, 0.9fr);
    gap: 26px;
    align-items: stretch;
    margin-bottom: 30px;
}

.tt-weekly-overview .tt-current-issue,
.tt-weekly-overview .tt-metrics {
    margin-bottom: 0;
}

.tt-weekly-overview .tt-current-issue {
    min-height: 354px;
    grid-template-columns: 1fr;
    grid-template-rows: 1fr auto;
    align-items: start;
}

.tt-weekly-overview .tt-document-actions {
    align-self: end;
    padding-top: 24px;
}

.tt-weekly-overview .tt-current-issue .tt-document-note {
    max-width: 520px;
    text-align: left;
}

.tt-metrics {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    margin-bottom: 30px;
}

.tt-weekly-overview .tt-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-auto-rows: 1fr;
}

.tt-weekly-overview .tt-metric {
    min-height: 0;
}

.tt-metric {
    --tt-metric-accent: #0c79a5;
    --tt-metric-tint: #edf7fa;
    position: relative;
    min-height: 168px;
    padding: 28px;
    border: 1px solid var(--tt-line);
    overflow: hidden;
    border-radius: 20px;
    background: linear-gradient(145deg, #fff 35%, var(--tt-metric-tint) 100%);
    box-shadow: 0 12px 30px rgba(21, 54, 78, 0.065);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.tt-metric:nth-child(2) {
    --tt-metric-accent: #15868f;
    --tt-metric-tint: #edf8f7;
}

.tt-metric:nth-child(3) {
    --tt-metric-accent: #b37b33;
    --tt-metric-tint: #fbf5eb;
}

.tt-metric:nth-child(4) {
    --tt-metric-accent: #536e91;
    --tt-metric-tint: #f0f4f9;
}

.tt-metric::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--tt-metric-accent), transparent 92%);
}

.tt-metric::after {
    content: "";
    position: absolute;
    right: -34px;
    bottom: -44px;
    width: 116px;
    height: 116px;
    border: 1px solid rgba(12, 111, 157, 0.08);
    border-radius: 50%;
    box-shadow: 0 0 0 22px rgba(255, 255, 255, 0.26);
}

.tt-metric:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 34px rgba(21, 54, 78, 0.1);
}

.tt-metric__value {
    position: relative;
    z-index: 1;
    display: block;
    color: var(--tt-metric-accent);
    font-family: "Noto Serif SC", "Noto Serif TC", serif;
    font-size: clamp(1.8rem, 3vw, 2.55rem);
    font-weight: 700;
    line-height: 1.15;
}

.tt-metric__label {
    position: relative;
    z-index: 1;
    display: block;
    margin-top: 12px;
    color: var(--tt-muted);
    font-size: 0.9rem;
}

.tt-snapshot-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
    gap: 26px;
}

.tt-panel {
    position: relative;
    padding: 34px;
    overflow: hidden;
    border: 1px solid #d9e6eb;
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.88);
    box-shadow: 0 20px 48px rgba(18, 55, 76, 0.085);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.tt-panel--wide {
    margin-top: 26px;
    background:
        radial-gradient(circle at 94% 12%, rgba(203, 161, 116, 0.1), transparent 24%),
        rgba(255, 255, 255, 0.9);
}

.tt-panel--wide .tt-brief-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.tt-snapshot-grid > .tt-panel::before,
.tt-panel--wide::before {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--tt-blue), var(--tt-cyan), transparent 80%);
}

.tt-snapshot-grid > .tt-panel:nth-child(2)::before,
.tt-panel--wide::before {
    background: linear-gradient(90deg, var(--tt-gold), #e7cda8, transparent 80%);
}

.tt-panel__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--tt-line);
}

.tt-panel h3 {
    margin: 0;
    color: var(--tt-ink);
    font-family: "Noto Serif SC", "Noto Serif TC", serif;
    font-size: 1.28rem;
}

.tt-status {
    padding: 6px 10px;
    border-radius: 999px;
    background: #e8f6f7;
    color: #126b77;
    font-size: 0.76rem;
    font-weight: 700;
}

.tt-empty {
    display: grid;
    min-height: 230px;
    place-items: center;
    padding: 36px;
    text-align: center;
    color: var(--tt-muted);
}

.tt-empty strong {
    display: block;
    margin-bottom: 8px;
    color: var(--tt-ink);
    font-size: 1.05rem;
}

.tt-patent-list,
.tt-brief-list,
.tt-archive-list {
    display: grid;
    gap: 14px;
    margin-top: 20px;
}

.tt-patent-card,
.tt-brief-card,
.tt-archive-card {
    padding: 20px;
    border: 1px solid var(--tt-line);
    border-radius: 14px;
    background: #fbfdfe;
}

#weekly-snapshot .tt-patent-card,
#weekly-snapshot .tt-brief-card {
    position: relative;
    border-color: #dfebef;
    background: linear-gradient(135deg, #ffffff 0%, #f7fbfc 100%);
    box-shadow: 0 8px 20px rgba(21, 54, 78, 0.035);
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

#weekly-snapshot .tt-patent-card {
    border-left: 3px solid #52aabd;
}

#weekly-snapshot .tt-patent-card:hover,
#weekly-snapshot .tt-brief-card:hover {
    transform: translateY(-2px);
    border-color: #c8dde5;
    box-shadow: 0 14px 28px rgba(21, 54, 78, 0.075);
}

.tt-collection-block--reports {
    margin-top: 78px;
    padding-top: 78px;
    border-top: 1px solid #d3e0e7;
}

.tt-archive-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.tt-archive-card {
    display: flex;
    min-height: 290px;
    flex-direction: column;
    padding: 28px;
    background: #fff;
    box-shadow: 0 12px 34px rgba(11, 42, 66, 0.06);
}

.tt-archive-card h3 {
    margin: 0;
    font-family: "Noto Serif SC", "Noto Serif TC", serif;
    font-size: 1.2rem;
    line-height: 1.45;
}

.tt-archive-card__summary {
    margin: 12px 0 0;
    color: var(--tt-muted);
    font-size: 0.88rem;
}

.tt-archive-card__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 5px 14px;
    margin-top: 16px;
    color: #81909e;
    font-size: 0.76rem;
}

.tt-archive-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-top: 15px;
}

.tt-archive-card__tags span {
    padding: 4px 8px;
    border-radius: 999px;
    background: #edf5f8;
    color: #3f6d81;
    font-size: 0.72rem;
}

.tt-archive-card .tt-document-actions {
    margin-top: auto;
    padding-top: 22px;
}

.tt-library-empty {
    display: grid;
    min-height: 190px;
    place-items: center;
    padding: 34px;
    border: 1px dashed #bfd1da;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.72);
    text-align: center;
}

.tt-library-empty strong,
.tt-library-empty span {
    display: block;
}

.tt-library-empty strong {
    margin-bottom: 8px;
    color: var(--tt-ink);
}

.tt-library-empty span {
    max-width: 560px;
    color: var(--tt-muted);
    font-size: 0.88rem;
}

.tt-patent-card h4,
.tt-brief-card h4,
.tt-archive-card h4 {
    margin: 0 0 8px;
    font-size: 1rem;
}

.tt-brief-card {
    display: grid;
    grid-template-columns: 104px 1fr;
    gap: 18px;
    align-items: start;
}

.tt-brief-type {
    display: inline-flex;
    min-height: 30px;
    align-items: center;
    justify-content: center;
    padding: 4px 9px;
    border: 1px solid #cfe1e8;
    border-radius: 999px;
    background: #edf6f8;
    color: var(--tt-blue);
    font-size: 0.76rem;
    font-weight: 700;
}

.tt-brief-card p {
    margin: 0;
    color: var(--tt-muted);
    font-size: 0.88rem;
}

.tt-patent-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 14px;
    color: var(--tt-muted);
    font-size: 0.8rem;
}

.tt-focus-list {
    display: grid;
    gap: 10px;
    margin-top: 22px;
}

.tt-wsic-link {
    display: inline-flex;
    margin-top: 22px;
    color: var(--tt-blue);
    font-size: 0.86rem;
    font-weight: 700;
    text-decoration: none;
}

.tt-wsic-link:hover {
    text-decoration: underline;
}

.tt-focus-item {
    display: grid;
    grid-template-columns: 38px 1fr;
    align-items: start;
    gap: 12px;
    padding: 15px;
    border: 1px solid #e2ebef;
    border-radius: 13px;
    background: linear-gradient(135deg, #f9fcfd, #f3f8f9);
}

.tt-focus-item:last-child {
    border-bottom: 1px solid #e2ebef;
}

.tt-focus-index {
    display: grid;
    width: 34px;
    height: 34px;
    place-items: center;
    border-radius: 50%;
    background: #fff7eb;
    color: #a66e2d;
    font-family: Georgia, serif;
    font-weight: 700;
    box-shadow: 0 0 0 1px #ead9bd;
}

.tt-focus-item strong {
    display: block;
    margin-bottom: 3px;
}

.tt-focus-item span {
    color: var(--tt-muted);
    font-size: 0.84rem;
}

.tt-articles-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(300px, 350px);
    gap: 26px;
    align-items: start;
}

.tt-articles-main {
    min-width: 0;
}

.tt-articles-main .tt-featured-article {
    grid-template-columns: minmax(0, 0.9fr) minmax(330px, 1.1fr);
}

.tt-articles-main .tt-featured-article__body {
    padding: 40px 36px;
}

.tt-articles-main .tt-article-grid {
    grid-template-columns: 1fr;
}

.tt-classification-panel {
    position: sticky;
    top: 108px;
    align-self: start;
    margin-top: 0;
    padding: 28px 24px;
}

.tt-classification-panel .tt-panel__top {
    display: block;
}

.tt-classification-panel .tt-panel__top .tt-section-kicker {
    margin-bottom: 8px;
}

.tt-classification-panel .tt-panel__top h3 {
    font-size: 1.6rem;
    line-height: 1.35;
}

.tt-classification-panel .tt-panel__top p:last-child {
    margin: 10px 0 0;
    color: var(--tt-muted);
    font-size: 0.84rem;
    line-height: 1.65;
}

.tt-classification-panel .tt-focus-list {
    grid-template-columns: 1fr;
    gap: 10px;
    margin-top: 22px;
}

.tt-classification-panel .tt-focus-item {
    min-height: 0;
    padding: 14px 12px;
}

.tt-category-filter {
    width: 100%;
    color: inherit;
    font: inherit;
    text-align: left;
    cursor: pointer;
    transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.tt-category-filter:hover {
    border-color: #b8d4df;
    transform: translateX(-2px);
}

.tt-category-filter.active {
    border-color: #7fb7c9;
    background: linear-gradient(135deg, #eef9fa, #e7f4f6);
    box-shadow: inset 3px 0 0 var(--tt-cyan);
}

.tt-category-filter.active .tt-focus-index {
    background: var(--tt-blue);
    color: #fff;
    box-shadow: none;
}

.tt-category-filter:first-child .tt-focus-index {
    font-size: 0.58rem;
    letter-spacing: -0.03em;
}

.tt-category-filter:focus-visible {
    outline: 3px solid rgba(54, 181, 199, 0.28);
    outline-offset: 2px;
}

.tt-classification-panel > .tt-wsic-link {
    margin-top: 20px;
}

.tt-domain-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
}

.tt-framework-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.06fr) minmax(360px, 0.94fr);
    gap: 22px;
    align-items: stretch;
}

.tt-framework-layout .tt-domain-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.tt-framework-media {
    position: relative;
    min-height: 520px;
    margin: 0;
    overflow: hidden;
    border: 1px solid rgba(30, 58, 138, 0.14);
    border-radius: 22px;
    background: #dfe7ec;
    box-shadow: 0 24px 58px rgba(15, 35, 56, 0.16);
}

.tt-framework-media::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: linear-gradient(180deg, transparent 48%, rgba(5, 21, 38, 0.78) 100%);
}

.tt-framework-media img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.tt-framework-media figcaption {
    position: absolute;
    right: 30px;
    bottom: 28px;
    left: 30px;
    z-index: 1;
    color: #fff;
}

.tt-framework-media figcaption span,
.tt-framework-media figcaption strong {
    display: block;
}

.tt-framework-media figcaption span {
    margin-bottom: 8px;
    color: #e0b982;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.15em;
}

.tt-framework-media figcaption strong {
    max-width: 420px;
    font-family: "Noto Serif SC", "Noto Serif TC", serif;
    font-size: 1.18rem;
    line-height: 1.55;
}

.tt-domain-card {
    position: relative;
    min-height: 250px;
    padding: 30px 26px;
    overflow: hidden;
    border: 1px solid #d9e5ec;
    border-radius: 18px;
    background: linear-gradient(160deg, #fff 0%, #f6fafc 100%);
    box-shadow: 0 10px 28px rgba(15, 35, 56, 0.055);
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.tt-domain-card:hover {
    transform: translateY(-3px);
    border-color: rgba(12, 111, 157, 0.28);
    box-shadow: 0 18px 36px rgba(15, 35, 56, 0.1);
}

.tt-domain-card::after {
    content: attr(data-code);
    position: absolute;
    right: 16px;
    bottom: -17px;
    color: rgba(10, 74, 107, 0.055);
    font-family: Georgia, serif;
    font-size: 6rem;
    font-weight: 700;
    line-height: 1;
}

.tt-domain-card h3 {
    margin: 22px 0 12px;
    font-size: 1.18rem;
}

.tt-domain-card p {
    margin: 0;
    color: var(--tt-muted);
    font-size: 0.9rem;
}

.tt-domain-icon {
    display: inline-flex;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    border-radius: 9px;
    background: #e8f2f7;
    color: var(--tt-blue);
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0.05em;
}

.tt-method-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    margin-top: 44px;
}

.tt-method-step {
    --tt-step-accent: #0c6f9d;
    position: relative;
    min-height: 230px;
    padding: 30px 26px;
    overflow: hidden;
    border: 1px solid #d9e5eb;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.88);
    box-shadow: 0 12px 30px rgba(15, 42, 60, 0.065);
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.tt-method-step:nth-child(2) {
    --tt-step-accent: #15868f;
}

.tt-method-step:nth-child(3) {
    --tt-step-accent: #b37b33;
}

.tt-method-step:nth-child(4) {
    --tt-step-accent: #536e91;
}

.tt-method-step::before {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--tt-step-accent), transparent 88%);
}

.tt-method-step:hover {
    transform: translateY(-4px);
    border-color: color-mix(in srgb, var(--tt-step-accent) 28%, #d9e5eb);
    box-shadow: 0 18px 38px rgba(15, 42, 60, 0.11);
}

.tt-method-number {
    display: inline-flex;
    min-width: 42px;
    height: 32px;
    align-items: center;
    justify-content: center;
    padding: 0 10px;
    border: 1px solid color-mix(in srgb, var(--tt-step-accent) 22%, #dce7ed);
    border-radius: 999px;
    background: color-mix(in srgb, var(--tt-step-accent) 9%, #ffffff);
    color: var(--tt-step-accent);
    font-family: Georgia, serif;
    font-size: 0.82rem;
    font-weight: 700;
}

.tt-method-step h3 {
    margin: 24px 0 12px;
    color: var(--tt-ink);
    font-size: 1.08rem;
}

.tt-method-step p {
    margin: 0;
    color: var(--tt-muted);
    font-size: 0.87rem;
}

.tt-safety-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    overflow: hidden;
    border: 1px solid #d8e5ea;
    border-radius: 28px;
    background: #fff;
    box-shadow: 0 24px 60px rgba(20, 45, 65, 0.09);
}

.tt-safety-intro {
    position: relative;
    min-height: 560px;
    padding: 58px 54px 50px;
    overflow: hidden;
    background:
        radial-gradient(circle at 86% 15%, rgba(255, 255, 255, 0.95) 0 5px, transparent 6px),
        radial-gradient(circle at 86% 15%, rgba(18, 153, 170, 0.11) 0 94px, transparent 95px),
        linear-gradient(145deg, #e7f4f5 0%, #f5f9f7 62%, #f8f4eb 100%);
}

.tt-safety-intro::after {
    content: "";
    position: absolute;
    right: -46px;
    bottom: -58px;
    width: 190px;
    height: 190px;
    border: 1px solid rgba(12, 111, 157, 0.13);
    border-radius: 50%;
    box-shadow:
        0 0 0 28px rgba(255, 255, 255, 0.22),
        0 0 0 58px rgba(255, 255, 255, 0.16);
}

.tt-safety-intro .tt-section-kicker,
.tt-safety-intro .tt-section-title,
.tt-safety-intro .tt-section-desc,
.tt-safety-intro .tt-callout {
    position: relative;
    z-index: 1;
}

.tt-safety-intro .tt-section-title {
    max-width: 560px;
    font-size: clamp(2.35rem, 4vw, 3.35rem);
}

.tt-safety-intro .tt-section-desc {
    max-width: 540px;
    line-height: 1.9;
}

.tt-rule-panel {
    display: flex;
    align-items: center;
    padding: 44px 50px;
    background:
        linear-gradient(90deg, rgba(237, 246, 248, 0.76) 0, rgba(255, 255, 255, 0) 54px),
        #ffffff;
}

.tt-callout {
    max-width: 540px;
    margin-top: 32px;
    padding: 24px 26px 24px 72px;
    border: 1px solid rgba(37, 144, 164, 0.2);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.72);
    box-shadow: 0 12px 30px rgba(38, 89, 101, 0.07);
}

.tt-callout::before {
    content: "WSIC";
    position: absolute;
    top: 24px;
    left: 22px;
    display: grid;
    width: 36px;
    height: 36px;
    place-items: center;
    border-radius: 10px;
    background: #0f7897;
    color: #fff;
    font-size: 0.58rem;
    font-weight: 800;
    letter-spacing: 0.04em;
}

.tt-callout strong {
    display: block;
    margin-bottom: 8px;
    color: #07526f;
    font-size: 1.15rem;
}

.tt-callout p {
    margin: 0;
    color: #436478;
}

.tt-rule-list {
    position: relative;
    display: grid;
    width: 100%;
    gap: 0;
}

.tt-rule-list::before {
    content: "";
    position: absolute;
    top: 42px;
    bottom: 42px;
    left: 27px;
    width: 1px;
    background: linear-gradient(180deg, #75bdca, #d8bc91);
}

.tt-rule {
    position: relative;
    display: grid;
    grid-template-columns: 56px 1fr;
    gap: 20px;
    align-items: start;
    padding: 28px 0;
    border-bottom: 1px solid #e3ecef;
}

.tt-rule:first-child {
    padding-top: 12px;
}

.tt-rule:last-child {
    padding-bottom: 12px;
    border-bottom: 0;
}

.tt-rule__mark {
    position: relative;
    z-index: 1;
    display: grid;
    width: 56px;
    height: 56px;
    place-items: center;
    border: 5px solid #fff;
    border-radius: 50%;
    background: linear-gradient(145deg, #e2f3f5, #f7fbfc);
    color: #087293;
    font-weight: 800;
    box-shadow: 0 0 0 1px #c8dfe6, 0 8px 18px rgba(20, 91, 111, 0.09);
}

.tt-rule h3 {
    margin: 4px 0 7px;
    color: var(--tt-ink);
    font-size: 1.08rem;
}

.tt-rule p {
    margin: 0;
    color: var(--tt-muted);
    font-size: 0.9rem;
    line-height: 1.75;
}

.tt-note {
    grid-column: 1 / -1;
    margin: 0;
    padding: 18px 28px 18px 54px;
    border-top: 1px solid #dfe9ed;
    background: #f8fbfc;
    color: var(--tt-muted);
    font-size: 0.8rem;
    line-height: 1.7;
}

.tt-note::before {
    content: "i";
    display: inline-grid;
    width: 20px;
    height: 20px;
    margin: 0 10px 0 -30px;
    place-items: center;
    border: 1px solid #bdd7e1;
    border-radius: 50%;
    color: #0c6f9d;
    font-family: Georgia, serif;
    font-size: 0.72rem;
    font-weight: 700;
    vertical-align: middle;
}

.tt-note a {
    color: var(--tt-blue);
}

.tt-articles-section {
    position: relative;
    overflow: hidden;
    background:
        linear-gradient(180deg, rgba(239, 248, 250, 0.9), rgba(255, 255, 255, 0.98) 42%),
        url("../assets/images/sleep-think-tank-weekly-background-20260722.webp") center top / cover no-repeat;
}

.tt-articles-section::before {
    content: "";
    position: absolute;
    width: 460px;
    height: 460px;
    top: -250px;
    right: -110px;
    border: 1px solid rgba(12, 111, 157, 0.12);
    border-radius: 50%;
}

.tt-articles-section .tt-container {
    position: relative;
    z-index: 1;
}

.tt-articles-header {
    align-items: flex-end;
    padding-bottom: 28px;
    border-bottom: 1px solid rgba(117, 151, 169, 0.22);
}

.tt-articles-header .tt-section-desc {
    max-width: 760px;
}

.tt-edition-overview {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(460px, 0.85fr);
    min-height: 340px;
    margin-bottom: 64px;
    overflow: hidden;
    border-radius: 26px;
    color: #fff;
    background:
        radial-gradient(circle at 15% 20%, rgba(54, 181, 199, 0.2), transparent 30%),
        linear-gradient(135deg, #07182d, #0b3857);
    box-shadow: 0 26px 68px rgba(7, 24, 45, 0.18);
}

.tt-edition-overview__main {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 48px 52px;
}

.tt-edition-overview__main > p {
    margin: 0 0 16px;
    color: var(--tt-gold);
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.18em;
}

.tt-edition-overview__main h3 {
    margin: 0;
    font-family: "Noto Serif SC", "Noto Serif TC", serif;
    font-size: clamp(2rem, 3.6vw, 3.35rem);
    line-height: 1.22;
}

#tt-overview-summary {
    max-width: 680px;
    margin-top: 18px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
}

.tt-edition-overview__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 28px;
    margin-top: 28px;
    color: rgba(255, 255, 255, 0.55);
    font-size: 0.82rem;
}

.tt-edition-overview__meta strong {
    color: #fff;
}

.tt-overview-metrics {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-left: 1px solid rgba(255, 255, 255, 0.11);
    background: rgba(255, 255, 255, 0.035);
}

.tt-overview-metrics article {
    display: flex;
    min-height: 170px;
    justify-content: center;
    flex-direction: column;
    padding: 28px 30px;
    border-right: 1px solid rgba(255, 255, 255, 0.09);
    border-bottom: 1px solid rgba(255, 255, 255, 0.09);
}

.tt-overview-metrics strong {
    color: #fff;
    font-family: "Noto Serif SC", "Noto Serif TC", serif;
    font-size: clamp(1.75rem, 3vw, 2.6rem);
    line-height: 1.15;
}

.tt-overview-metrics span {
    margin-top: 10px;
    color: rgba(255, 255, 255, 0.58);
    font-size: 0.82rem;
    line-height: 1.55;
}

.tt-articles-label {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 0 0 18px;
    color: var(--tt-blue);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.tt-articles-label::before {
    content: "";
    width: 34px;
    height: 2px;
    background: var(--tt-cyan);
}

.tt-featured-article {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(380px, 0.9fr);
    min-height: 420px;
    overflow: hidden;
    border: 1px solid rgba(161, 187, 201, 0.45);
    border-radius: 26px;
    background: rgba(255, 255, 255, 0.94);
    box-shadow: 0 28px 72px rgba(11, 42, 66, 0.13);
}

.tt-featured-article__media,
.tt-article-card__media {
    position: relative;
    display: block;
    overflow: hidden;
    background:
        radial-gradient(circle at 20% 20%, rgba(54, 181, 199, 0.3), transparent 32%),
        linear-gradient(145deg, #07182d, #0b4264);
}

.tt-featured-article__media img,
.tt-article-card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.45s ease;
}

.tt-featured-article:hover .tt-featured-article__media img,
.tt-article-card:hover .tt-article-card__media img {
    transform: scale(1.035);
}

.tt-featured-article__media.is-placeholder,
.tt-article-card__media.is-placeholder {
    display: flex;
    align-items: flex-end;
    padding: 34px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.18em;
    text-decoration: none;
}

.tt-featured-article__media.is-placeholder::after,
.tt-article-card__media.is-placeholder::after {
    content: "W";
    position: absolute;
    top: 50%;
    left: 50%;
    color: rgba(255, 255, 255, 0.08);
    font-family: Georgia, serif;
    font-size: 15rem;
    line-height: 1;
    transform: translate(-50%, -50%);
}

.tt-featured-article__body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 54px 52px;
}

.tt-featured-article__meta,
.tt-article-card__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
    color: #748398;
    font-size: 0.82rem;
}

.tt-featured-article__meta span:not(:first-child)::before,
.tt-article-card__meta span:not(:first-child)::before {
    content: "·";
    margin-right: 16px;
    color: var(--tt-gold);
}

.tt-featured-article h3 {
    margin: 20px 0 16px;
    font-family: "Noto Serif SC", "Noto Serif TC", serif;
    font-size: clamp(2rem, 3.2vw, 3.25rem);
    line-height: 1.2;
    letter-spacing: -0.035em;
}

.tt-featured-article h3 a,
.tt-article-card h3 a {
    color: var(--tt-ink);
    text-decoration: none;
}

.tt-featured-article h3 a:hover,
.tt-article-card h3 a:hover {
    color: var(--tt-blue);
}

.tt-featured-article__body > p {
    margin: 0 0 22px;
    color: var(--tt-muted);
    font-size: 1rem;
    line-height: 1.85;
}

.tt-featured-article .tt-button {
    align-self: flex-start;
    margin-top: 26px;
}

.tt-article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tt-article-tags span {
    padding: 5px 11px;
    border: 1px solid #d4e3ea;
    border-radius: 999px;
    background: #f5fafb;
    color: #366078;
    font-size: 0.76rem;
}

.tt-articles-subhead {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin: 72px 0 22px;
}

.tt-articles-subhead h3 {
    margin: 0;
    font-family: "Noto Serif SC", "Noto Serif TC", serif;
    font-size: clamp(1.8rem, 3vw, 2.5rem);
}

.tt-articles-subhead span {
    color: #7a899c;
    font-size: 0.86rem;
}

.tt-article-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}

.tt-article-card {
    display: grid;
    grid-template-columns: 220px minmax(0, 1fr);
    min-width: 0;
    min-height: 184px;
    overflow: hidden;
    border: 1px solid rgba(161, 187, 201, 0.42);
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.94);
    box-shadow: 0 16px 44px rgba(11, 42, 66, 0.08);
    transition: transform 0.28s ease, box-shadow 0.28s ease;
}

.tt-article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 24px 58px rgba(11, 42, 66, 0.13);
}

.tt-article-card__media {
    height: 100%;
    min-height: 184px;
}

.tt-article-card__date {
    position: absolute;
    top: 14px;
    left: 14px;
    z-index: 2;
    padding: 6px 10px;
    border: 1px solid rgba(255, 255, 255, 0.34);
    border-radius: 999px;
    background: rgba(7, 24, 45, 0.74);
    color: #fff;
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .03em;
    line-height: 1;
    box-shadow: 0 4px 14px rgba(7, 24, 45, 0.16);
    backdrop-filter: blur(6px);
}

.tt-article-card__media.is-placeholder {
    padding: 22px;
}

.tt-article-card__media.is-placeholder::after {
    font-size: 9rem;
}

.tt-article-card__body {
    display: flex;
    min-width: 0;
    min-height: 0;
    flex: 1;
    flex-direction: column;
    padding: 20px 24px 18px;
}

.tt-article-card h3 {
    margin: 0 0 8px;
    font-family: "Noto Serif SC", "Noto Serif TC", serif;
    font-size: clamp(1.28rem, 1.7vw, 1.65rem);
    line-height: 1.38;
}

.tt-article-card__body > p {
    display: -webkit-box;
    margin: 0;
    overflow: hidden;
    color: var(--tt-muted);
    font-size: .88rem;
    line-height: 1.65;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.tt-article-card__footer {
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
    gap: 16px;
    margin-top: auto;
    padding-top: 14px;
}

.tt-article-read {
    display: inline-flex;
    flex: 0 0 auto;
    align-items: center;
    gap: 8px;
    color: var(--tt-blue);
    font-size: 0.85rem;
    font-weight: 800;
    text-decoration: none;
}

.tt-article-read span {
    font-size: 1.15rem;
    transition: transform 0.2s ease;
}

.tt-article-read:hover span {
    transform: translateX(4px);
}

.tt-articles-empty {
    display: flex;
    min-height: 230px;
    align-items: center;
    justify-content: center;
    gap: 24px;
    padding: 40px;
    border: 1px dashed #bdd1dc;
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.7);
    text-align: left;
}

.tt-articles-empty > span {
    display: grid;
    width: 64px;
    height: 64px;
    place-items: center;
    border-radius: 50%;
    background: #e6f5f7;
    color: var(--tt-blue);
    font-family: Georgia, serif;
    font-size: 1.55rem;
}

.tt-articles-empty strong {
    display: block;
    font-size: 1.2rem;
}

.tt-articles-empty p {
    margin: 5px 0 0;
    color: var(--tt-muted);
}

.tt-category-section {
    margin-top: 100px;
    padding-top: 72px;
    border-top: 1px solid rgba(117, 151, 169, 0.24);
}

.tt-category-section__header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 40px;
    margin-bottom: 32px;
}

.tt-category-section__header .tt-section-kicker {
    margin-bottom: 12px;
}

.tt-category-section__header h2 {
    margin: 0;
    font-family: "Noto Serif SC", "Noto Serif TC", serif;
    font-size: clamp(2.2rem, 4vw, 3.6rem);
    line-height: 1.2;
}

.tt-category-section__header > div > span {
    display: block;
    max-width: 720px;
    margin-top: 14px;
    color: var(--tt-muted);
}

.tt-category-section__header > a {
    display: inline-flex;
    flex: 0 0 auto;
    align-items: center;
    gap: 12px;
    padding-bottom: 7px;
    border-bottom: 1px solid #8ab4c7;
    color: var(--tt-blue);
    font-size: 0.88rem;
    font-weight: 800;
    text-decoration: none;
}

.tt-category-section__header > a b {
    font-size: 1.1rem;
}

.tt-category-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.tt-category-grid article {
    position: relative;
    min-height: 210px;
    padding: 30px 28px;
    overflow: hidden;
    border: 1px solid #d9e6ec;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.84);
    box-shadow: 0 14px 36px rgba(11, 42, 66, 0.06);
}

.tt-category-grid article::after {
    content: attr(data-code);
}

.tt-category-grid article > span {
    display: grid;
    width: 42px;
    height: 34px;
    place-items: center;
    border-radius: 999px;
    background: #e6f5f7;
    color: var(--tt-blue);
    font-size: 0.76rem;
    font-weight: 800;
}

.tt-category-grid h3 {
    margin: 22px 0 8px;
    font-size: 1.18rem;
}

.tt-category-grid p {
    margin: 0;
    color: var(--tt-muted);
    font-size: 0.88rem;
    line-height: 1.7;
}

@media (max-width: 1024px) {
    .tt-articles-layout {
        grid-template-columns: 1fr;
    }

    .tt-classification-panel {
        position: static;
    }

    .tt-classification-panel .tt-focus-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .tt-edition-overview {
        grid-template-columns: 1fr;
    }

    .tt-overview-metrics {
        border-top: 1px solid rgba(255, 255, 255, 0.11);
        border-left: 0;
    }

    .tt-overview-metrics article {
        min-height: 140px;
    }

    .tt-category-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .tt-featured-article {
        grid-template-columns: 1fr;
    }

    .tt-featured-article__media {
        min-height: 360px;
    }

    .tt-article-grid {
        grid-template-columns: 1fr;
    }

    .tt-metrics,
    .tt-domain-grid,
    .tt-method-grid,
    .tt-archive-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .tt-current-issue {
        grid-template-columns: 1fr;
        align-items: start;
    }

    .tt-current-issue .tt-document-note {
        text-align: left;
    }

    .tt-weekly-overview {
        grid-template-columns: 1fr;
    }

    .tt-weekly-overview .tt-current-issue {
        min-height: 320px;
    }

    .tt-weekly-overview .tt-metrics {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        grid-auto-rows: auto;
    }

    .tt-framework-layout {
        grid-template-columns: 1fr;
    }

    .tt-framework-media {
        min-height: 430px;
    }

    .tt-method-step:nth-child(3),
    .tt-method-step:nth-child(4) {
        margin-top: 0;
    }

    .tt-snapshot-grid,
    .tt-safety-grid {
        grid-template-columns: 1fr;
    }

    .tt-safety-intro {
        min-height: auto;
    }
}

@media (max-width: 767px) {
    .tt-articles-main .tt-featured-article {
        grid-template-columns: 1fr;
    }

    .tt-articles-main .tt-featured-article__body {
        padding: 30px 24px 32px;
    }

    .tt-articles-main .tt-article-grid {
        grid-template-columns: 1fr;
    }

    .tt-classification-panel {
        margin-top: 0;
    }

    .tt-classification-panel .tt-focus-list {
        grid-template-columns: 1fr;
    }

    .tt-edition-overview {
        margin-bottom: 48px;
        border-radius: 20px;
    }

    .tt-edition-overview__main {
        padding: 34px 24px;
    }

    .tt-overview-metrics article {
        min-height: 128px;
        padding: 22px 18px;
    }

    .tt-category-section {
        margin-top: 70px;
        padding-top: 52px;
    }

    .tt-category-section__header {
        display: block;
    }

    .tt-category-section__header > a {
        margin-top: 22px;
    }

    .tt-category-grid {
        grid-template-columns: 1fr;
    }

    .tt-category-grid article {
        min-height: 0;
    }

    .tt-featured-article {
        min-height: 0;
        border-radius: 20px;
    }

    .tt-featured-article__media {
        min-height: 230px;
    }

    .tt-featured-article__body {
        padding: 30px 24px 32px;
    }

    .tt-featured-article h3 {
        font-size: 2rem;
    }

    .tt-featured-article__meta span:not(:first-child)::before,
    .tt-article-card__meta span:not(:first-child)::before {
        display: none;
    }

    .tt-articles-subhead {
        margin-top: 52px;
    }

    .tt-article-grid {
        grid-template-columns: 1fr;
    }

    .tt-article-card {
        grid-template-columns: 1fr;
        min-height: 0;
    }

    .tt-article-card__media {
        height: 180px;
        min-height: 180px;
    }

    .tt-article-card__body {
        min-height: 0;
    }

    .tt-articles-empty {
        align-items: flex-start;
        padding: 30px 24px;
    }

    .tt-container {
        width: min(1180px, calc(100% - 32px));
    }

    .tt-hero {
        min-height: 620px;
        padding: 138px 0 76px;
    }

    .tt-hero--compact {
        min-height: 500px;
        padding: 120px 0 60px;
    }

    .tt-hero:not(.tt-hero--compact) .tt-hero__inner {
        width: min(1180px, calc(100% - 32px));
    }

    .tt-hero::after {
        right: -320px;
    }

    .tt-hero h1 {
        font-size: clamp(3rem, 16vw, 4.5rem);
    }

    .tt-hero__actions,
    .tt-button {
        width: 100%;
    }

    .tt-hero__badges {
        margin-top: 34px;
    }

    .tt-section {
        padding: 68px 0;
    }

    .tt-section-header {
        display: block;
        margin-bottom: 32px;
    }

    .tt-update-chip {
        display: inline-flex;
        align-items: flex-start;
        margin-top: 18px;
        white-space: normal;
    }

    .tt-metrics,
    .tt-domain-grid,
    .tt-method-grid,
    .tt-archive-grid {
        grid-template-columns: 1fr;
    }

    .tt-weekly-overview {
        gap: 18px;
    }

    .tt-weekly-overview .tt-current-issue {
        min-height: auto;
    }

    .tt-weekly-overview .tt-metrics,
    .tt-panel--wide .tt-brief-list {
        grid-template-columns: 1fr;
    }

    .tt-current-issue {
        gap: 26px;
        padding: 28px 24px;
        border-radius: 20px;
    }

    .tt-current-issue::before {
        left: 24px;
    }

    .tt-framework-layout .tt-domain-grid {
        grid-template-columns: 1fr;
    }

    .tt-framework-media {
        min-height: 320px;
        border-radius: 16px;
    }

    .tt-framework-media figcaption {
        right: 22px;
        bottom: 20px;
        left: 22px;
    }

    .tt-current-issue .tt-document-actions,
    .tt-current-issue .tt-document-link {
        width: 100%;
    }

    .tt-collection-block--reports {
        margin-top: 58px;
        padding-top: 58px;
    }

    .tt-metric {
        min-height: auto;
    }

    .tt-panel {
        padding: 24px 20px;
    }

    .tt-brief-card {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .tt-method-step,
    .tt-method-step:nth-child(3),
    .tt-method-step:nth-child(4) {
        margin-top: 0;
        padding: 28px 20px;
        border: 1px solid #d9e5eb;
        border-radius: 16px;
    }

    .tt-safety-grid {
        border-radius: 18px;
    }

    .tt-safety-intro {
        padding: 38px 24px 34px;
    }

    .tt-rule-panel {
        padding: 22px 24px 30px;
    }

    .tt-rule {
        grid-template-columns: 48px 1fr;
        gap: 14px;
        padding: 22px 0;
    }

    .tt-rule-list::before {
        left: 23px;
    }

    .tt-rule__mark {
        width: 48px;
        height: 48px;
    }

    .tt-callout {
        padding: 68px 20px 22px;
    }

    .tt-callout::before {
        top: 20px;
        left: 20px;
    }

    .tt-note {
        padding: 18px 20px 18px 48px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .tt-button {
        transition: none;
    }
}