* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background: #ffffff;
    color: #1a1e24;
    line-height: 1.5;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.line-clamp-1 {
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1;
}

.line-clamp-2 {
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.line-clamp-3 {
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
}

.line-clamp-4 {
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 4;
}

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: #0b2b4f;
    transition: color 0.2s ease;
}

a:hover {
    color: #c44536;
}

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

ul,
li {
    list-style: none;
}


.site-header {
    background: #ffffff;
    border-bottom: 1px solid #eaeef2;
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background 0.3s, box-shadow 0.3s;
}

.site-header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(5px);
}

.header-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 54px;
}

.logo a {
    font-size: 1.8rem;
    font-weight: 600;
    letter-spacing: -0.5px;
    color: #1a1e24;
}

.logo span {
    font-weight: 300;
    color: #5f6b7a;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.main-nav a {
    font-weight: 500;
    color: #2c3e50;
    font-size: 1.05rem;
}

.main-nav a.active,
.main-nav a:hover {
    color: #c44536;
    border-bottom: 2px solid #c44536;
    padding-bottom: 4px;
}

.hamburger {
    display: none;
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: #1a1e24;
}


.top-brief {
    background: #f3f6f9;
    padding: 12px 0;
    border-bottom: 1px solid #dce5ec;
    font-size: 0.95rem;
}

.top-brief a {
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 3px;
}


.section-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin: 2.5rem 0 1.5rem;
    border-bottom: 1px solid #e2e8f0;
    padding-bottom: 0.5rem;
}

.section-head h2 {
    font-weight: 600;
    font-size: 1.7rem;
}

.light {
    font-weight: 300;
    color: #5a6874;
    font-size: 1.2rem;
}

.view-all {
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
    font-weight: 600;
}


.card-grid {
    display: grid;
    gap: 2rem;
    margin-bottom: 2rem;
}

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

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}


.card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
    transition: all 0.25s ease;
    border: 1px solid #f0f3f7;
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 24px -8px rgba(0, 20, 40, 0.12);
    border-color: #d0dbe8;
}

.card-img {
    overflow: hidden;
}

.card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}

.card:hover .card-img img {
    transform: scale(1.03);
}

.ratio-4x3 {
    aspect-ratio: 4 / 3;
}

.card-content {
    padding: 1.2rem;
}

.tag {
    display: inline-block;
    background: #eef2f7;
    color: #2c3e50;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    padding: 0.2rem 0.8rem;
    border-radius: 20px;
    margin-bottom: 0.6rem;
}

.card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.4rem;
    line-height: 1.3;
    max-height: 2.8rem;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.excerpt {
    color: #3d4a5c;
    font-size: 0.9rem;
    margin-bottom: 0.8rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.meta {
    font-size: 0.8rem;
    color: #6c7a8a;
}


.card-horizontal {
    display: flex;
}

.card-horizontal .card-img {
    width: 40%;
}

.card-horizontal .card-content {
    width: 60%;
}

.card-stack .card-img {
    width: 100%;
}

.card-large .card-content {
    padding: 1.5rem;
}

.card-large h3 {
    font-size: 1.4rem;
}

.card-accent {
    border-left: 4px solid #c44536;
}


.special-report {
    background: #f9fbfd;
    padding: 2rem 1.5rem;
    border-radius: 32px;
    margin: 2.5rem auto;
}

.report-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.report-card {
    display: flex;
    flex-direction: column;
}


.hot-topics {
    margin: 3rem 0;
}

.filter-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin: 1rem 0 2rem;
}

.pill {
    background: #eef2f6;
    padding: 0.4rem 1.4rem;
    border-radius: 40px;
    font-size: 0.9rem;
    font-weight: 500;
    color: #1a2b3c;
    transition: 0.1s;
}

.pill:hover {
    background: #c44536;
    color: white;
}


.site-footer {
    background: #1e2a36;
    color: #cfdbe8;
    padding: 1rem 0 1rem;
    margin-top: 3rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.footer-col .logo a,
.footer-col .logo span {
    color: white;
}

.footer-col h4 {
    color: white;
    margin-bottom: 1rem;
    font-weight: 600;
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 0.5rem;
}

.footer-col a {
    color: #b6c5d6;
}

.footer-col a:hover {
    color: white;
}

.copyright {
    text-align: center;
    font-size: 0.85rem;
}

.copyright p {
    text-align: center;
    margin: 0;
}

.copyright a {
    color: #cfdbe8;
}


.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: #1e2a36;
    color: white;
    width: 50px;
    height: 50px;
    border: none;
    border-radius: 30px;
    font-size: 1.8rem;
    cursor: pointer;
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.15);
    opacity: 0;
    transition: opacity 0.2s, background 0.2s;
    pointer-events: none;
    z-index: 99;
}

.back-to-top.visible {
    opacity: 1;
    pointer-events: auto;
}

.back-to-top:hover {
    background: #c44536;
}


.breadcrumb {
    margin: 1.5rem 0 0.5rem;
}

.breadcrumb ol {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 0.9rem;
    color: #5f6b7a;
}

.breadcrumb li {
    display: flex;
    align-items: center;
}

.breadcrumb li:not(:last-child)::after {
    content: "›";
    margin: 0 0.6rem;
    color: #a0b3c9;
    font-size: 1.2rem;
    line-height: 1;
}

.breadcrumb a {
    color: #2c3e50;
    font-weight: 500;
}

.breadcrumb a:hover {
    color: #c44536;
    text-decoration: underline;
}

.breadcrumb .active {
    color: #7f8c9a;
    font-weight: 400;
}


.category-banner {
    padding: 2rem 0 1rem;
    background: #f6f9fc;
}

.static-filter {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem;
    margin-top: 1rem;
}

.filter-label {
    font-weight: 600;
    color: #2b3f54;
}

.filter-option {
    padding: 0.3rem 1.2rem;
    background: white;
    border: 1px solid #cbd5e1;
    border-radius: 30px;
    font-size: 0.9rem;
    cursor: default;
}

.filter-option.active {
    background: #1e2a36;
    color: white;
    border-color: #1e2a36;
}

.category-grid {
    display: grid;
    grid-template-columns: 68% 30%;
    gap: 2.5rem;
    margin: 2rem auto 3rem;
}

.article-feed {
    display: flex;
    flex-direction: column;
    gap: 1.8rem;
}

.card-featured {
    grid-column: span 2;
    display: flex;
    gap: 1.5rem;
    background: #f9fbfd;
    border: 1px solid #e7eef5;
    border-radius: 20px;
    padding: 0;
    overflow: hidden;
}

.card-featured .card-img {
    width: 40%;
    aspect-ratio: 4/3;
}

.card-featured .card-content {
    width: 60%;
    padding: 1.5rem 1.5rem 1.5rem 0;
}

.card-featured h3 {
    font-size: 1.6rem;
    margin: 0.5rem 0;
}


.sidebar-card {
    background: #f8fafc;
    border-radius: 20px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.author-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1.8rem 1.5rem;
}

.author-avatar {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1rem;
    border: 3px solid white;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.05);
}

.author-name {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
}

.author-bio {
    color: #3f5568;
    font-size: 0.9rem;
    line-height: 1.5;
    margin: 0.8rem 0;
}

.list-with-date {
    list-style: none;
    margin: 0;
    padding: 0;
}

.list-with-date li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.7rem 0;
    border-bottom: 1px dashed #dee7ef;
}

.list-with-date li:last-child {
    border-bottom: none;
}

.list-with-date a {
    font-weight: 500;
    color: #1a2b3c;
    flex: 1;
}

.list-with-date .date {
    font-size: 0.75rem;
    color: #6f8a9f;
    margin-left: 1rem;
    white-space: nowrap;
}

.category-stats {
    list-style: none;
    padding: 0;
    margin: 0;
}

.category-stats li {
    display: flex;
    justify-content: space-between;
    padding: 0.6rem 0;
    border-bottom: 1px solid #edf2f7;
}

.category-stats li:last-child {
    border-bottom: none;
}

.category-stats .cat-name {
    font-weight: 500;
}

.category-stats .cat-count {
    background: #eef2f6;
    padding: 0.2rem 0.8rem;
    border-radius: 30px;
    font-size: 0.75rem;
    font-weight: 600;
    color: #2b4c6e;
}


.pagination {
    margin: 2.5rem 0 1.5rem;
}

.pagination-list {
    display: flex;
    gap: 0.5rem;
    list-style: none;
    padding: 0;
    flex-wrap: wrap;
}

.pagination-list li a,
.pagination-list li span {
    display: inline-block;
    padding: 0.5rem 1rem;
    border: 1px solid #d4dee9;
    border-radius: 30px;
    font-weight: 500;
    color: #2c3e50;
    background: white;
    transition: all 0.15s;
}

.pagination-list li a:hover {
    background: #1e2a36;
    color: white;
    border-color: #1e2a36;
}

.pagination-list .active span,
.pagination-list .active a {
    background: #1e2a36;
    color: white;
    border-color: #1e2a36;
}

.pagination-list .disabled span {
    opacity: 0.4;
    pointer-events: none;
}


.article-grid {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 2.5rem;
    margin: 2rem auto 3rem;
}

.full-article {
    background: #fff;
    border-radius: 24px;
    padding: 0 0 1.5rem 0;
}

.article-header {
    margin-bottom: 1.5rem;
}

.article-header h1 {
    font-size: 2.5rem;
    line-height: 1.2;
    margin: 0.5rem 0 0.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.article-subhead {
    font-size: 1.25rem;
    color: #4a5f73;
    font-weight: 350;
    margin-bottom: 1rem;
    border-left: 4px solid #c44536;
    padding-left: 1.2rem;
}

.byline {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 1.5rem 0;
    padding: 0.8rem 0;
    border-top: 1px solid #eef3f8;
    border-bottom: 1px solid #eef3f8;
}

.byline-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
}

.byline-info {
    flex: 1;
}

.byline-name {
    font-weight: 600;
    color: #1e2a36;
}

.byline-meta {
    display: flex;
    align-items: center;
    font-size: 0.9rem;
    color: #5f7485;
    gap: 0.5rem;
}

.byline-meta time {
    font-weight: 500;
}

.article-body {
    font-size: 0.985rem;
    letter-spacing: 0.2px;
    color: #171717;
    line-height: 1.75;
}

.article-body img{
    margin: 0 auto;
}

.article-body p {
    margin-bottom: 1.5rem;
}

.article-body h2 {
    font-size: 1.8rem;
    margin: 2rem 0 1rem;
}

.article-body blockquote {
    margin: 2rem 0;
    padding: 1rem 2rem;
    background: #f6fafd;
    border-left: 4px solid #c44536;
    font-style: italic;
    color: #1e3a5f;
}

.article-categories {
    margin: 2rem 0 0.5rem;
}

.article-categories .tag {
    margin-right: 0.5rem;
    background: #eaf0f8;
}


.author-bio-box {
    display: flex;
    gap: 1.5rem;
    background: #f6fafd;
    border-radius: 24px;
    padding: 1.8rem;
    margin: 2rem 0 1.5rem;
    border: 1px solid #e0eaf3;
}

.author-bio-avatar {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.author-bio-content h4 {
    font-size: 1.3rem;
    margin-bottom: 0.4rem;
}

.author-bio-content p {
    color: #2f4055;
    margin-bottom: 0.3rem;
}


.share-bar {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 1.5rem 0;
    border-bottom: 1px solid #e7eef5;
    margin-bottom: 1.5rem;
}

.share-label {
    font-weight: 600;
    color: #2d4259;
}

.share-btn {
    background: #eef2f6;
    border: none;
    border-radius: 40px;
    padding: 0.4rem 0.6rem;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.15s;
}

.share-btn:hover {
    background: #c44536;
    color: white;
}


.comments-section {
    margin: 2.5rem 0;
}

.comments-section h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.comment {
    background: #f9fcff;
    border-radius: 18px;
    padding: 1.2rem;
    margin-bottom: 1rem;
    border: 1px solid #dee9f2;
}

.comment-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.comment-date {
    font-size: 0.8rem;
    color: #6b8093;
    font-weight: 400;
}

.comment p {
    margin-bottom: 0;
}

.comment-form {
    margin-top: 2rem;
}

.comment-form textarea {
    width: 100%;
    border-radius: 20px;
    border: 1px solid #cbdae8;
    padding: 1rem;
    font-family: inherit;
    margin-bottom: 1rem;
    background: white;
}

.comment-form .btn {
    background: #1e2a36;
    color: white;
    border: none;
    border-radius: 40px;
    padding: 0.7rem 2rem;
    font-weight: 600;
    cursor: default;
}


.related-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin: 2rem 0 1rem;
}

.related-card {
    border: 1px solid #e4ecf5;
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.2s;
    background: white;
}

.related-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.04);
}

.related-card .card-img {
    width: 100%;
}

.related-card .card-content {
    padding: 1rem;
}

.related-card h3 {
    font-size: 1rem;
    margin-bottom: 0.3rem;
    line-height: 1.4;
}

.related-card .meta {
    font-size: 0.75rem;
}


.author-page {
    max-width: 1000px;
    margin: 2rem auto;
}

.author-hero {
    display: flex;
    gap: 3rem;
    align-items: flex-start;
    background: #f9fbfd;
    border-radius: 32px;
    padding: 2.5rem;
    margin-bottom: 2.5rem;
    border: 1px solid #e7eef5;
}

.author-hero-avatar {
    flex-shrink: 0;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    border: 4px solid white;
}

.author-hero-content {
    flex: 1;
}

.author-hero-name {
    font-size: 2.8rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 0 0 0.25rem 0;
    line-height: 1.1;
}

.author-hero-role {
    font-size: 1.2rem;
    color: #c44536;
    font-weight: 500;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.author-hero-bio {
    font-size: 1.1rem;
    color: #2c3e50;
    margin-bottom: 1.2rem;
    line-height: 1.6;
}

.author-hero-meta {
    display: flex;
    gap: 2rem;
    margin: 1.5rem 0 0;
    font-size: 0.95rem;
}

.author-hero-meta a {
    color: #1e2a36;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.author-hero-meta a:hover {
    color: #c44536;
}

.author-detailed {
    background: white;
    border-radius: 28px;
    padding: 2rem;
    margin-bottom: 3rem;
    border: 1px solid #e9f0f7;
}

.author-detailed h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
    border-bottom: 1px solid #dee7f0;
    padding-bottom: 0.5rem;
}

.author-detailed p {
    font-size: 1.05rem;
    line-height: 1.7;
    color: #2a3b4e;
    margin-bottom: 1.2rem;
}

.author-stats {
    display: flex;
    gap: 2rem;
    margin: 2rem 0;
    padding: 1.5rem 0;
    border-top: 1px dashed #cbdae8;
    border-bottom: 1px dashed #cbdae8;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: #1e2a36;
    line-height: 1.2;
}

.stat-label {
    font-size: 0.9rem;
    color: #5f7485;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.author-articles-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.8rem;
    margin: 2rem 0 1.5rem;
}

.author-article-card {
    border: 1px solid #e4ecf5;
    border-radius: 20px;
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
    background: white;
}

.author-article-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.05);
    border-color: #c0d0e0;
}

.author-article-card .card-img {
    aspect-ratio: 4/3;
    overflow: hidden;
}

.author-article-card .card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.author-article-card:hover .card-img img {
    transform: scale(1.03);
}

.author-article-card .card-content {
    padding: 1.2rem;
}

.author-article-card .tag {
    margin-bottom: 0.5rem;
}

.author-article-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.3rem;
    line-height: 1.4;
    max-height: 3rem;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.author-article-card .meta {
    font-size: 0.8rem;
}

.view-all-link {
    text-align: right;
    margin: 1rem 0 2rem;
}

.view-all-link a {
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.9rem;
    color: #1e2a36;
    border-bottom: 2px solid #c44536;
    padding-bottom: 2px;
}


@media (max-width: 800px) {
    .byline-avatar {
        display: none;
    }

    .byline-name,.byline-meta,.meta-item{
        font-size: 0.8rem;
    }

    .article-header h1 {
        font-size: 1.4rem;
    }

    .site-header {
        position: relative;
    }

    .header-flex .main-nav {
        display: none;
        position: absolute;
        top: 54px;
        left: 0;
        width: 100%;
        background: white;
        border-bottom: 1px solid #eef2f6;
        padding: 1rem 0;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
    }

    .main-nav.open {
        display: block;
    }

    .main-nav ul {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    .hamburger {
        display: block;
    }

    .grid-2,
    .grid-3,
    .report-grid,
    .category-grid,
    .footer-grid,
    .author-articles-grid,
    .related-grid {
        grid-template-columns: 1fr;
    }

    .article-grid {
        grid-template-columns: 100%;
    }

    .card-horizontal {
        flex-direction: column;
    }

    .card-horizontal .card-img,
    .card-horizontal .card-content {
        width: 100%;
    }

    .card-featured {
        grid-column: span 1;
        flex-direction: column;
    }

    .card-featured .card-img,
    .card-featured .card-content {
        width: 100%;
    }

    .author-hero {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 1.5rem;
    }

    .author-hero-avatar {
        width: 120px;
        height: 120px;
    }

    .author-hero-name {
        font-size: 2rem;
    }

    .author-hero-meta {
        flex-direction: column;
        gap: 0.8rem;
        align-items: center;
    }

    .author-stats {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }

    .back-to-top {
        bottom: 15px;
        right: 15px;
    }

    .byline {
        flex-wrap: wrap;
    }
}