/* roulang page: index */
:root {
    --color-primary: #0f2b46;
    --color-primary-light: #1e4a72;
    --color-primary-dark: #081d30;
    --color-accent: #c9a96a;
    --color-accent-light: #e0c98e;
    --color-accent-dark: #a8894a;
    --color-bg: #f5f7fa;
    --color-white: #ffffff;
    --color-ink: #1a2b3c;
    --color-muted: #6b7b8d;
    --color-border: #e2e8f0;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --shadow-card: 0 2px 12px rgba(15, 43, 70, 0.08);
    --shadow-hover: 0 8px 30px rgba(15, 43, 70, 0.16);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    line-height: 1.7;
    background: var(--color-bg);
    color: var(--color-ink);
    -webkit-font-smoothing: antialiased;
}
img {
    max-width: 100%;
    display: block;
}
a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s ease;
}
button, input {
    font-family: inherit;
    font-size: inherit;
    border: none;
    background: none;
    outline: none;
}
.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}
.section-header {
    text-align: center;
    margin-bottom: 56px;
}
.section-header .tagline {
    display: inline-block;
    background: rgba(201, 169, 106, 0.12);
    color: var(--color-accent-dark);
    font-size: 13px;
    letter-spacing: 2px;
    padding: 6px 18px;
    border-radius: 30px;
    font-weight: 600;
    margin-bottom: 16px;
    text-transform: uppercase;
}
.section-header h2 {
    font-size: 36px;
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-primary);
    margin-bottom: 14px;
}
.section-header p {
    max-width: 680px;
    margin: 0 auto;
    color: var(--color-muted);
    font-size: 16px;
}

/* ===== Header & Nav ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(15, 43, 70, 0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transition: box-shadow 0.3s ease;
}
.site-header.scrolled {
    box-shadow: 0 6px 30px rgba(0, 0, 0, 0.3);
}
.nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 78px;
    gap: 16px;
}
.nav-side {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
}
.nav-side.left-nav {
    justify-content: flex-start;
}
.nav-side.right-nav {
    justify-content: flex-end;
}
.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: rgba(255, 255, 255, 0.82);
    font-size: 15px;
    font-weight: 500;
    padding: 10px 18px;
    border-radius: 30px;
    transition: all 0.25s ease;
    position: relative;
}
.nav-link i {
    font-size: 13px;
    opacity: 0.7;
}
.nav-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
}
.nav-link.active {
    color: #fff;
    background: rgba(201, 169, 106, 0.2);
    font-weight: 600;
}
.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 22px;
    height: 2px;
    border-radius: 2px;
    background: var(--color-accent);
}
.logo-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    line-height: 1.2;
    padding: 0 12px;
    text-align: center;
}
.logo-text {
    font-size: 22px;
    font-weight: 800;
    color: #fff;
    letter-spacing: 1px;
    white-space: nowrap;
}
.logo-sub {
    font-size: 10px;
    letter-spacing: 3px;
    color: var(--color-accent);
    text-transform: uppercase;
    margin-top: 2px;
}
.mobile-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    font-size: 18px;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

/* ===== Hero ===== */
.hero {
    position: relative;
    min-height: 620px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-size: cover;
    background-position: center;
    color: #fff;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(8, 29, 48, 0.88) 0%, rgba(15, 43, 70, 0.72) 50%, rgba(8, 29, 48, 0.65) 100%);
    z-index: 1;
}
.hero::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 160px;
    background: linear-gradient(to top, rgba(15, 43, 70, 0.25), transparent);
    z-index: 1;
}
.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 100px 24px 80px;
    max-width: 900px;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 30px;
    padding: 8px 20px;
    font-size: 13px;
    letter-spacing: 1px;
    color: var(--color-accent-light);
    margin-bottom: 28px;
}
.hero-content h1 {
    font-size: 54px;
    font-weight: 800;
    letter-spacing: 2px;
    line-height: 1.2;
    margin-bottom: 20px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}
.hero-content .subtitle {
    font-size: 20px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}
.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, #c9a96a, #a8894a);
    color: #fff !important;
    font-weight: 600;
    font-size: 16px;
    padding: 14px 32px;
    border-radius: 50px;
    box-shadow: 0 4px 18px rgba(168, 137, 74, 0.4);
    transition: all 0.3s ease;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(168, 137, 74, 0.55);
}
.btn-primary i {
    font-size: 14px;
}
.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.4);
    color: #fff !important;
    font-weight: 500;
    font-size: 16px;
    padding: 14px 32px;
    border-radius: 50px;
    transition: all 0.3s ease;
    backdrop-filter: blur(8px);
}
.btn-outline:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: #fff;
    transform: translateY(-2px);
}
.hero-scroll {
    position: absolute;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    letter-spacing: 2px;
    animation: floatDown 2s ease-in-out infinite;
}
@keyframes floatDown {
    0%, 100% { transform: translate(-50%, 0); }
    50% { transform: translate(-50%, 10px); }
}

/* ===== Stats ===== */
.stats-section {
    padding: 80px 0 60px;
    background: var(--color-white);
    position: relative;
    margin-top: -40px;
    z-index: 5;
    border-radius: 32px 32px 0 0;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}
.stat-card {
    text-align: center;
    padding: 32px 24px;
    border-radius: var(--radius-md);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
}
.stat-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(201, 169, 106, 0.4);
}
.stat-number {
    font-size: 44px;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1.2;
}
.stat-number span {
    font-size: 18px;
    color: var(--color-accent-dark);
}
.stat-label {
    font-size: 15px;
    color: var(--color-muted);
    margin-top: 8px;
}

/* ===== Business ===== */
.business-section {
    padding: 80px 0;
    background: var(--color-white);
}
.business-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.business-image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
}
.business-image img {
    width: 100%;
    height: 380px;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.business-image:hover img {
    transform: scale(1.05);
}
.business-image .img-badge {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(15, 43, 70, 0.85);
    backdrop-filter: blur(6px);
    color: #fff;
    padding: 10px 18px;
    border-radius: 12px;
    font-size: 13px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}
.business-content .tagline {
    color: var(--color-accent-dark);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    display: block;
    margin-bottom: 12px;
}
.business-content h3 {
    font-size: 30px;
    line-height: 1.4;
    color: var(--color-primary);
    margin-bottom: 20px;
    font-weight: 700;
}
.business-content p {
    color: var(--color-muted);
    margin-bottom: 16px;
    font-size: 15px;
    line-height: 1.8;
}
.business-points {
    list-style: none;
    margin: 20px 0 28px;
    padding: 0;
}
.business-points li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 14px;
    font-size: 15px;
    color: var(--color-ink);
}
.business-points li i {
    color: var(--color-accent);
    margin-top: 4px;
    font-size: 16px;
}
.btn-dark {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--color-primary);
    color: #fff;
    font-weight: 600;
    padding: 14px 30px;
    border-radius: 30px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(15, 43, 70, 0.25);
}
.btn-dark:hover {
    background: var(--color-primary-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(15, 43, 70, 0.35);
}

/* ===== Categories ===== */
.categories-section {
    padding: 90px 0;
    background: var(--color-bg);
}
.category-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}
.category-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: all 0.35s ease;
    position: relative;
}
.category-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}
.category-card-img {
    position: relative;
    height: 220px;
    overflow: hidden;
}
.category-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.category-card:hover .category-card-img img {
    transform: scale(1.08);
}
.category-card-img::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(8, 29, 48, 0.5), transparent);
}
.category-card-body {
    padding: 28px 28px 32px;
}
.category-card-body .cat-tag {
    display: inline-block;
    background: rgba(201, 169, 106, 0.15);
    color: var(--color-accent-dark);
    font-size: 12px;
    font-weight: 600;
    padding: 4px 14px;
    border-radius: 20px;
    margin-bottom: 14px;
    letter-spacing: 1px;
}
.category-card-body h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 10px;
}
.category-card-body p {
    font-size: 14px;
    color: var(--color-muted);
    line-height: 1.7;
    margin-bottom: 20px;
}
.card-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary);
    transition: all 0.3s ease;
}
.card-link i {
    transition: transform 0.3s ease;
}
.card-link:hover {
    color: var(--color-accent-dark);
}
.card-link:hover i {
    transform: translateX(4px);
}

/* ===== News ===== */
.news-section {
    padding: 80px 0;
    background: var(--color-white);
}
.news-layout {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 40px;
}
.news-feature {
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.news-feature-card {
    display: flex;
    gap: 20px;
    background: var(--color-bg);
    border-radius: var(--radius-md);
    padding: 20px;
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
}
.news-feature-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-3px);
    border-color: rgba(201, 169, 106, 0.4);
}
.news-feature-card img {
    width: 160px;
    height: 120px;
    object-fit: cover;
    border-radius: 12px;
    flex-shrink: 0;
}
.news-feature-content {
    flex: 1;
}
.news-feature-content .news-cat {
    font-size: 12px;
    color: var(--color-accent-dark);
    font-weight: 600;
    margin-bottom: 6px;
    display: block;
}
.news-feature-content h4 {
    font-size: 16px;
    font-weight: 600;
    line-height: 1.5;
    color: var(--color-ink);
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-feature-content p {
    font-size: 13px;
    color: var(--color-muted);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-feature-content .news-date {
    font-size: 12px;
    color: #949fb0;
    margin-top: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}
.news-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.news-list-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 18px;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 14px;
    transition: all 0.3s ease;
}
.news-list-item:hover {
    background: var(--color-bg);
    border-color: rgba(201, 169, 106, 0.4);
}
.news-list-item .rank {
    font-size: 18px;
    font-weight: 800;
    color: var(--color-accent);
    width: 36px;
    text-align: center;
    flex-shrink: 0;
}
.news-list-item .news-info {
    flex: 1;
    min-width: 0;
}
.news-list-item .news-info h5 {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-ink);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 2px;
}
.news-list-item .news-info span {
    font-size: 12px;
    color: #94a3b8;
}
.news-list-item .arrow {
    color: #cbd5e1;
    font-size: 14px;
    flex-shrink: 0;
}

/* ===== Timeline ===== */
.timeline-section {
    padding: 90px 0;
    background: var(--color-primary);
    color: #fff;
    position: relative;
    overflow: hidden;
}
.timeline-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: rgba(255, 255, 255, 0.15);
}
.section-header.light .tagline {
    background: rgba(201, 169, 106, 0.2);
    color: var(--color-accent-light);
}
.section-header.light h2 {
    color: #fff;
}
.section-header.light p {
    color: rgba(255, 255, 255, 0.7);
}
.timeline-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    position: relative;
    z-index: 2;
}
.timeline-item {
    text-align: center;
    padding: 0 16px;
}
.timeline-item .dot {
    width: 12px;
    height: 12px;
    background: var(--color-accent);
    border-radius: 50%;
    margin: 0 auto 24px;
    box-shadow: 0 0 0 6px rgba(201, 169, 106, 0.25);
}
.timeline-item .stage {
    font-size: 13px;
    color: var(--color-accent-light);
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 10px;
    display: block;
}
.timeline-item h4 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}
.timeline-item p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
}

/* ===== FAQ ===== */
.faq-section {
    padding: 80px 0;
    background: var(--color-white);
}
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}
.faq-item {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    margin-bottom: 14px;
    overflow: hidden;
    transition: all 0.3s ease;
}
.faq-item.open {
    border-color: rgba(201, 169, 106, 0.5);
    box-shadow: var(--shadow-card);
}
.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: var(--color-ink);
    background: none;
    width: 100%;
    text-align: left;
    transition: all 0.3s ease;
}
.faq-question i {
    font-size: 14px;
    color: var(--color-accent);
    transition: transform 0.3s ease;
    flex-shrink: 0;
}
.faq-item.open .faq-question i {
    transform: rotate(180deg);
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
    padding: 0 24px;
    color: var(--color-muted);
    font-size: 14px;
    line-height: 1.7;
}
.faq-item.open .faq-answer {
    max-height: 300px;
    padding: 0 24px 20px;
}

/* ===== CTA ===== */
.cta-section {
    padding: 100px 0;
    background-size: cover;
    background-position: center;
    position: relative;
}
.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(8, 29, 48, 0.92), rgba(15, 43, 70, 0.82));
}
.cta-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: #fff;
    max-width: 680px;
    margin: 0 auto;
}
.cta-content h2 {
    font-size: 38px;
    font-weight: 800;
    margin-bottom: 16px;
}
.cta-content p {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 36px;
}
.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}
.cta-contact {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-top: 40px;
    flex-wrap: wrap;
}
.cta-contact span {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    color: rgba(255, 255, 255, 0.8);
}
.cta-contact i {
    color: var(--color-accent);
}

/* ===== Footer ===== */
.site-footer {
    background: var(--color-primary-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: 60px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 48px;
}
.footer-brand .logo-text {
    font-size: 22px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 14px;
}
.footer-brand p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
    margin-bottom: 20px;
}
.footer-social {
    display: flex;
    gap: 10px;
}
.footer-social a {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: 15px;
    transition: all 0.3s ease;
}
.footer-social a:hover {
    background: var(--color-accent);
    color: var(--color-primary-dark);
    transform: translateY(-3px);
}
.footer-title {
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 18px;
}
.footer-links {
    list-style: none;
    padding: 0;
}
.footer-links li {
    margin-bottom: 10px;
}
.footer-links a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.footer-links a:hover {
    color: var(--color-accent-light);
    padding-left: 4px;
}
.footer-links a i {
    font-size: 12px;
    color: var(--color-accent);
}
.footer-contact p {
    font-size: 14px;
    margin-bottom: 10px;
    color: rgba(255, 255, 255, 0.6);
    display: flex;
    align-items: center;
    gap: 10px;
}
.footer-contact i {
    color: var(--color-accent);
    width: 16px;
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
    text-align: center;
}
.footer-bottom p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.45);
}

/* ===== Mobile Responsive ===== */
@media (max-width: 1024px) {
    .nav-wrap {
        height: 68px;
    }
    .nav-link {
        padding: 8px 12px;
        font-size: 14px;
    }
    .logo-text {
        font-size: 18px;
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .business-grid {
        gap: 40px;
    }
    .category-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .news-layout {
        grid-template-columns: 1fr;
    }
    .timeline-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}
@media (max-width: 768px) {
    .nav-side {
        display: none;
    }
    .mobile-toggle {
        display: flex;
    }
    .nav-wrap {
        height: 64px;
    }
    .logo-center {
        flex: 1;
    }
    .mobile-menu-open .nav-side {
        display: flex;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--color-primary-dark);
        padding: 16px 24px;
        gap: 4px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    .mobile-menu-open .nav-side a {
        display: block;
        padding: 14px 16px;
        width: 100%;
    }
    .hero {
        min-height: 480px;
    }
    .hero-content h1 {
        font-size: 34px;
    }
    .hero-content .subtitle {
        font-size: 16px;
    }
    .section-header h2 {
        font-size: 28px;
    }
    .business-grid {
        grid-template-columns: 1fr;
    }
    .business-image img {
        height: 260px;
    }
    .category-grid {
        grid-template-columns: 1fr;
    }
    .news-feature-card {
        flex-direction: column;
    }
    .news-feature-card img {
        width: 100%;
        height: 180px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .cta-content h2 {
        font-size: 28px;
    }
}
@media (max-width: 480px) {
    .container {
        padding: 0 18px;
    }
    .stats-grid {
        grid-template-columns: 1fr;
    }
    .news-feature-card {
        padding: 14px;
    }
    .btn-primary, .btn-outline, .btn-dark {
        padding: 12px 24px;
        font-size: 14px;
    }
}

/* roulang page: category1 */
:root {
        --primary: #0e2a47;
        --primary-soft: #16385a;
        --accent: #c9a227;
        --accent-soft: #e2c044;
        --bg-light: #f2f5f9;
        --text-dark: #14213d;
        --text-body: #556a7e;
        --text-muted: #8fa3b5;
        --border: #e2e9f0;
        --radius-lg: 20px;
        --radius-md: 14px;
        --radius-sm: 8px;
        --shadow-sm: 0 4px 16px rgba(14, 42, 71, 0.06);
        --shadow-md: 0 10px 36px rgba(14, 42, 71, 0.10);
        --shadow-lg: 0 16px 48px rgba(14, 42, 71, 0.14);
        --transition: all 0.35s ease;
    }

    * {
        box-sizing: border-box;
    }

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
        color: var(--text-dark);
        background: #ffffff;
        line-height: 1.75;
        margin: 0;
        -webkit-font-smoothing: antialiased;
    }

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

    a {
        color: inherit;
        text-decoration: none;
        transition: var(--transition);
    }

    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 24px;
    }

    /* ========== HEADER ========== */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: rgba(255, 255, 255, 0.92);
        backdrop-filter: blur(14px);
        border-bottom: 1px solid rgba(226, 233, 240, 0.7);
        box-shadow: 0 2px 20px rgba(14, 42, 71, 0.04);
    }

    .nav-wrap {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 76px;
        gap: 16px;
    }

    .nav-side {
        display: flex;
        align-items: center;
        gap: 8px;
        flex: 1;
    }

    .left-nav {
        justify-content: flex-start;
    }

    .right-nav {
        justify-content: flex-end;
    }

    .logo-center {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        text-align: center;
        padding: 0 24px;
        flex-shrink: 0;
        line-height: 1.2;
    }

    .logo-text {
        font-size: 22px;
        font-weight: 800;
        letter-spacing: 1px;
        color: var(--primary);
        white-space: nowrap;
    }

    .logo-sub {
        font-size: 10px;
        letter-spacing: 4px;
        color: var(--text-muted);
        text-transform: uppercase;
        margin-top: 2px;
    }

    .nav-link {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 8px 14px;
        border-radius: 999px;
        font-size: 14px;
        font-weight: 500;
        color: var(--text-body);
        white-space: nowrap;
    }

    .nav-link i {
        font-size: 14px;
        color: var(--text-muted);
        transition: var(--transition);
    }

    .nav-link:hover {
        color: var(--primary);
        background: rgba(14, 42, 71, 0.05);
    }

    .nav-link:hover i {
        color: var(--accent);
    }

    .nav-link.active {
        color: var(--primary);
        background: rgba(14, 42, 71, 0.07);
        font-weight: 600;
    }

    .nav-link.active i {
        color: var(--accent);
    }

    .mobile-toggle {
        display: none;
        width: 42px;
        height: 42px;
        border: none;
        background: transparent;
        border-radius: 10px;
        cursor: pointer;
        color: var(--primary);
        font-size: 20px;
        align-items: center;
        justify-content: center;
        transition: var(--transition);
    }

    .mobile-toggle:hover {
        background: rgba(14, 42, 71, 0.06);
    }

    .mobile-menu {
        display: none;
        background: #fff;
        padding: 12px 24px 20px;
        border-top: 1px solid var(--border);
        box-shadow: 0 20px 40px rgba(14, 42, 71, 0.06);
    }

    .mobile-menu.open {
        display: block;
    }

    .mobile-menu .nav-link {
        display: flex;
        padding: 12px 14px;
        border-radius: 12px;
        font-size: 15px;
    }

    /* ========== HERO ========== */
    .hero-section {
        position: relative;
        min-height: 560px;
        display: flex;
        align-items: center;
        background: linear-gradient(120deg, rgba(14, 42, 71, 0.92), rgba(22, 56, 90, 0.78) 60%, rgba(201, 162, 39, 0.35)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
        padding: 100px 0 80px;
        color: #fff;
    }

    .hero-section::after {
        content: '';
        position: absolute;
        left: 0;
        right: 0;
        bottom: -1px;
        height: 60px;
        background: linear-gradient(to bottom, transparent, #ffffff);
        pointer-events: none;
    }

    .hero-content {
        max-width: 720px;
        position: relative;
        z-index: 2;
    }

    .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(255, 255, 255, 0.14);
        border: 1px solid rgba(255, 255, 255, 0.24);
        padding: 7px 16px;
        border-radius: 999px;
        font-size: 13px;
        font-weight: 500;
        backdrop-filter: blur(6px);
        margin-bottom: 22px;
        color: #f3e5b5;
    }

    .hero-title {
        font-size: 44px;
        font-weight: 800;
        line-height: 1.25;
        margin: 0 0 20px;
        letter-spacing: 1px;
    }

    .hero-title span {
        color: var(--accent-soft);
    }

    .hero-desc {
        font-size: 16px;
        line-height: 1.9;
        color: rgba(255, 255, 255, 0.88);
        margin-bottom: 32px;
    }

    .hero-buttons {
        display: flex;
        flex-wrap: wrap;
        gap: 14px;
    }

    /* ========== BUTTONS ========== */
    .btn {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 12px 26px;
        border-radius: 999px;
        font-size: 14px;
        font-weight: 600;
        border: none;
        cursor: pointer;
        transition: all 0.3s ease;
        letter-spacing: 0.3px;
    }

    .btn-accent {
        background: linear-gradient(135deg, #c9a227, #e0bc4a);
        color: #0e2a47;
        box-shadow: 0 6px 22px rgba(201, 162, 39, 0.35);
    }

    .btn-accent:hover {
        transform: translateY(-2px);
        box-shadow: 0 10px 30px rgba(201, 162, 39, 0.45);
    }

    .btn-outline-light {
        background: transparent;
        color: #ffffff;
        border: 1.5px solid rgba(255, 255, 255, 0.7);
    }

    .btn-outline-light:hover {
        background: rgba(255, 255, 255, 0.12);
        border-color: #ffffff;
    }

    .btn-primary {
        background: var(--primary);
        color: #ffffff;
        box-shadow: 0 6px 20px rgba(14, 42, 71, 0.22);
    }

    .btn-primary:hover {
        background: var(--primary-soft);
        transform: translateY(-2px);
        box-shadow: 0 10px 28px rgba(14, 42, 71, 0.28);
    }

    .btn-outline {
        background: transparent;
        color: var(--primary);
        border: 1.5px solid rgba(14, 42, 71, 0.24);
    }

    .btn-outline:hover {
        border-color: var(--primary);
        background: rgba(14, 42, 71, 0.04);
    }

    /* ========== SECTION ========== */
    .section {
        padding: 90px 0;
    }

    .section-light {
        background: var(--bg-light);
    }

    .section-white {
        background: #ffffff;
    }

    .section-dark {
        background: var(--primary);
        color: #fff;
    }

    .section-header {
        text-align: center;
        max-width: 680px;
        margin: 0 auto 56px;
    }

    .section-eyebrow {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        font-weight: 600;
        letter-spacing: 2px;
        text-transform: uppercase;
        color: var(--accent);
        margin-bottom: 14px;
    }

    .section-eyebrow i {
        font-size: 16px;
    }

    .section-title {
        font-size: 34px;
        font-weight: 800;
        line-height: 1.3;
        color: var(--text-dark);
        margin: 0 0 14px;
    }

    .section-dark .section-title {
        color: #fff;
    }

    .section-subtitle {
        font-size: 15px;
        color: var(--text-body);
        line-height: 1.8;
    }

    .section-dark .section-subtitle {
        color: rgba(255, 255, 255, 0.75);
    }

    /* ========== FEATURE CARDS ========== */
    .feature-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }

    .feature-card {
        background: #fff;
        border-radius: var(--radius-lg);
        padding: 34px 28px;
        border: 1px solid var(--border);
        box-shadow: var(--shadow-sm);
        transition: var(--transition);
        position: relative;
        overflow: hidden;
    }

    .feature-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 4px;
        background: linear-gradient(90deg, var(--accent), transparent);
        opacity: 0;
        transition: var(--transition);
    }

    .feature-card:hover {
        transform: translateY(-6px);
        box-shadow: var(--shadow-md);
        border-color: rgba(201, 162, 39, 0.35);
    }

    .feature-card:hover::before {
        opacity: 1;
    }

    .feature-icon {
        width: 58px;
        height: 58px;
        border-radius: 16px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 22px;
        color: var(--accent);
        background: rgba(201, 162, 39, 0.1);
        margin-bottom: 20px;
    }

    .feature-card h3 {
        font-size: 18px;
        font-weight: 700;
        margin-bottom: 10px;
        color: var(--text-dark);
    }

    .feature-card p {
        font-size: 14px;
        color: var(--text-body);
        line-height: 1.75;
        margin: 0;
    }

    /* ========== INDUSTRY CARDS ========== */
    .industry-card {
        background: #fff;
        border-radius: var(--radius-lg);
        overflow: hidden;
        border: 1px solid var(--border);
        box-shadow: var(--shadow-sm);
        transition: var(--transition);
        display: flex;
        flex-direction: column;
        height: 100%;
    }

    .industry-card:hover {
        transform: translateY(-8px);
        box-shadow: var(--shadow-md);
    }

    .industry-cover {
        position: relative;
        overflow: hidden;
        aspect-ratio: 16 / 10;
        background: var(--primary);
    }

    .industry-cover img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.6s ease;
    }

    .industry-card:hover .industry-cover img {
        transform: scale(1.05);
    }

    .industry-cover::after {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(to top, rgba(14, 42, 71, 0.45), transparent 50%);
    }

    .industry-tag {
        position: absolute;
        left: 16px;
        bottom: 14px;
        z-index: 2;
        background: rgba(255, 255, 255, 0.92);
        color: var(--primary);
        font-size: 12px;
        font-weight: 600;
        padding: 5px 14px;
        border-radius: 999px;
        backdrop-filter: blur(4px);
    }

    .industry-body {
        padding: 24px 24px 26px;
        flex: 1;
        display: flex;
        flex-direction: column;
    }

    .industry-body h3 {
        font-size: 19px;
        font-weight: 700;
        color: var(--text-dark);
        margin: 0 0 10px;
    }

    .industry-body p {
        font-size: 14px;
        color: var(--text-body);
        line-height: 1.75;
        flex: 1;
    }

    .industry-meta {
        display: flex;
        align-items: center;
        gap: 8px;
        margin-top: 16px;
        padding-top: 14px;
        border-top: 1px solid var(--border);
        font-size: 13px;
        color: var(--text-muted);
    }

    .industry-meta i {
        color: var(--accent);
    }

    /* ========== PROJECT CARDS ========== */
    .project-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 22px;
    }

    .project-card {
        background: rgba(255, 255, 255, 0.06);
        border: 1px solid rgba(255, 255, 255, 0.14);
        border-radius: var(--radius-lg);
        overflow: hidden;
        transition: var(--transition);
        height: 100%;
    }

    .project-card:hover {
        background: rgba(255, 255, 255, 0.1);
        border-color: rgba(201, 162, 39, 0.4);
        transform: translateY(-6px);
    }

    .project-cover {
        aspect-ratio: 4 / 3;
        overflow: hidden;
        background: var(--primary-soft);
    }

    .project-cover img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.6s ease;
    }

    .project-card:hover .project-cover img {
        transform: scale(1.06);
    }

    .project-body {
        padding: 22px 20px;
    }

    .project-body h3 {
        font-size: 15px;
        font-weight: 700;
        color: #fff;
        margin: 0 0 8px;
        line-height: 1.5;
    }

    .project-body p {
        font-size: 13px;
        color: rgba(255, 255, 255, 0.68);
        line-height: 1.7;
        margin: 0;
    }

    .project-index {
        font-size: 12px;
        font-weight: 700;
        color: var(--accent-soft);
        letter-spacing: 1px;
        margin-bottom: 8px;
    }

    /* ========== STATS ========== */
    .stat-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
    }

    .stat-card {
        text-align: center;
        background: #fff;
        padding: 36px 20px;
        border-radius: var(--radius-lg);
        border: 1px solid var(--border);
        box-shadow: var(--shadow-sm);
        transition: var(--transition);
    }

    .stat-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-md);
    }

    .stat-number {
        font-size: 42px;
        font-weight: 800;
        color: var(--primary);
        line-height: 1.2;
        letter-spacing: -1px;
    }

    .stat-number span {
        font-size: 22px;
        color: var(--accent);
        font-weight: 700;
    }

    .stat-label {
        font-size: 14px;
        color: var(--text-body);
        margin-top: 8px;
    }

    /* ========== PATH STEPS ========== */
    .path-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 28px;
        counter-reset: step;
    }

    .path-item {
        position: relative;
        background: var(--bg-light);
        border-radius: var(--radius-lg);
        padding: 36px 28px;
        border: 1px solid var(--border);
        transition: var(--transition);
    }

    .path-item:hover {
        background: #fff;
        box-shadow: var(--shadow-md);
        transform: translateY(-4px);
    }

    .path-num {
        font-size: 14px;
        font-weight: 700;
        color: var(--accent);
        letter-spacing: 2px;
        margin-bottom: 14px;
        display: flex;
        align-items: center;
        gap: 6px;
    }

    .path-num i {
        font-size: 16px;
    }

    .path-item h3 {
        font-size: 18px;
        font-weight: 700;
        color: var(--text-dark);
        margin-bottom: 10px;
    }

    .path-item p {
        font-size: 14px;
        color: var(--text-body);
        line-height: 1.75;
        margin: 0;
    }

    /* ========== FAQ ========== */
    .faq-list {
        max-width: 780px;
        margin: 0 auto;
    }

    .faq-item {
        background: #fff;
        border: 1px solid var(--border);
        border-radius: var(--radius-md);
        margin-bottom: 14px;
        transition: var(--transition);
        overflow: hidden;
    }

    .faq-item:hover {
        border-color: rgba(201, 162, 39, 0.4);
        box-shadow: var(--shadow-sm);
    }

    .faq-question {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding: 20px 24px;
        cursor: pointer;
        font-size: 15px;
        font-weight: 600;
        color: var(--text-dark);
        background: transparent;
        border: none;
        width: 100%;
        text-align: left;
        font-family: inherit;
    }

    .faq-question i {
        color: var(--accent);
        font-size: 14px;
        transition: transform 0.3s ease;
        flex-shrink: 0;
    }

    .faq-item.open .faq-question i {
        transform: rotate(180deg);
    }

    .faq-answer {
        padding: 0 24px;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s ease, padding 0.4s ease;
        color: var(--text-body);
        font-size: 14px;
        line-height: 1.8;
    }

    .faq-item.open .faq-answer {
        padding: 0 24px 20px;
        max-height: 300px;
    }

    /* ========== CTA ========== */
    .cta-band {
        position: relative;
        background: linear-gradient(120deg, #0e2a47 0%, #16385a 60%, #1d4569 100%);
        padding: 80px 0;
        color: #fff;
        overflow: hidden;
    }

    .cta-band::before {
        content: '';
        position: absolute;
        right: -80px;
        top: -80px;
        width: 300px;
        height: 300px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.05);
    }

    .cta-band::after {
        content: '';
        position: absolute;
        right: 140px;
        bottom: -120px;
        width: 260px;
        height: 260px;
        border-radius: 50%;
        background: rgba(201, 162, 39, 0.08);
    }

    .cta-inner {
        position: relative;
        z-index: 2;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 40px;
        flex-wrap: wrap;
    }

    .cta-text h2 {
        font-size: 32px;
        font-weight: 800;
        margin-bottom: 12px;
    }

    .cta-text p {
        color: rgba(255, 255, 255, 0.78);
        max-width: 520px;
        margin-bottom: 0;
        font-size: 15px;
    }

    .cta-action {
        display: flex;
        gap: 14px;
        flex-wrap: wrap;
    }

    /* ========== FOOTER ========== */
    .site-footer {
        background: #0a1d33;
        color: rgba(255, 255, 255, 0.7);
        padding-top: 70px;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1.4fr;
        gap: 40px;
        padding-bottom: 50px;
    }

    .footer-brand .logo-text {
        color: #fff;
        font-size: 22px;
        margin-bottom: 14px;
        display: inline-block;
    }

    .footer-brand p {
        font-size: 14px;
        line-height: 1.8;
        color: rgba(255, 255, 255, 0.6);
        margin-bottom: 20px;
        max-width: 320px;
    }

    .footer-social {
        display: flex;
        gap: 12px;
    }

    .footer-social a {
        width: 38px;
        height: 38px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.08);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 16px;
        color: rgba(255, 255, 255, 0.7);
        border: 1px solid rgba(255, 255, 255, 0.06);
        transition: var(--transition);
    }

    .footer-social a:hover {
        background: var(--accent);
        color: #0e2a47;
        transform: translateY(-3px);
    }

    .footer-title {
        font-size: 15px;
        font-weight: 700;
        color: #fff;
        margin-bottom: 20px;
        letter-spacing: 0.5px;
    }

    .footer-links {
        list-style: none;
        padding: 0;
        margin: 0;
    }

    .footer-links li {
        margin-bottom: 12px;
    }

    .footer-links a {
        font-size: 14px;
        color: rgba(255, 255, 255, 0.6);
        display: inline-flex;
        align-items: center;
        gap: 8px;
        transition: var(--transition);
    }

    .footer-links a i {
        font-size: 11px;
        color: var(--accent);
    }

    .footer-links a:hover {
        color: #fff;
        padding-left: 4px;
    }

    .footer-contact p {
        font-size: 14px;
        margin-bottom: 12px;
        display: flex;
        align-items: center;
        gap: 10px;
        color: rgba(255, 255, 255, 0.6);
    }

    .footer-contact p i {
        width: 28px;
        height: 28px;
        border-radius: 8px;
        background: rgba(255, 255, 255, 0.07);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 12px;
        color: var(--accent);
        flex-shrink: 0;
    }

    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        padding: 24px 0;
        text-align: center;
    }

    .footer-bottom p {
        font-size: 13px;
        color: rgba(255, 255, 255, 0.4);
        margin: 0;
    }

    /* ========== RESPONSIVE ========== */
    @media (max-width: 1024px) {
        .feature-grid {
            grid-template-columns: repeat(3, 1fr);
        }
        .project-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
        }
        .nav-wrap {
            height: 68px;
        }
        .logo-text {
            font-size: 18px;
        }
        .logo-sub {
            font-size: 9px;
        }
        .nav-link {
            padding: 7px 10px;
            font-size: 13px;
        }
    }

    @media (max-width: 768px) {
        .nav-side {
            display: none;
        }
        .mobile-toggle {
            display: flex;
        }
        .nav-wrap {
            height: 64px;
        }
        .logo-center {
            margin-right: auto;
            padding: 0;
        }
        .logo-text {
            font-size: 19px;
        }
        .mobile-menu {
            display: none;
        }
        .mobile-menu.open {
            display: block;
        }
        .hero-section {
            min-height: 480px;
            padding: 70px 0 60px;
        }
        .hero-title {
            font-size: 30px;
        }
        .hero-desc {
            font-size: 15px;
        }
        .section {
            padding: 64px 0;
        }
        .section-title {
            font-size: 28px;
        }
        .feature-grid {
            grid-template-columns: 1fr;
        }
        .stat-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .path-grid {
            grid-template-columns: 1fr;
        }
        .project-grid {
            grid-template-columns: 1fr;
        }
        .cta-inner {
            flex-direction: column;
            text-align: center;
        }
        .cta-text p {
            margin-left: auto;
            margin-right: auto;
        }
        .cta-action {
            justify-content: center;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 32px;
        }
        .faq-question {
            font-size: 14px;
            padding: 18px 18px;
        }
        .faq-answer {
            padding: 0 18px;
            font-size: 13px;
        }
        .faq-item.open .faq-answer {
            padding: 0 18px 16px;
        }
    }

    @media (max-width: 520px) {
        .container {
            padding: 0 16px;
        }
        .hero-title {
            font-size: 26px;
        }
        .hero-buttons .btn {
            width: 100%;
            justify-content: center;
        }
        .stat-grid {
            grid-template-columns: 1fr;
            gap: 14px;
        }
        .stat-card {
            padding: 26px 16px;
        }
        .stat-number {
            font-size: 34px;
        }
        .project-grid {
            gap: 16px;
        }
        .section-header {
            margin-bottom: 40px;
        }
        .footer-bottom p {
            font-size: 12px;
            padding: 0 10px;
        }
    }

/* roulang page: article */
:root {
            --primary: #0d6e5a;
            --primary-dark: #0a5545;
            --primary-light: #14997e;
            --accent: #c9a44c;
            --accent-light: #e3c879;
            --dark: #0b2620;
            --ink: #1e2d3d;
            --ink-soft: #5c6f82;
            --ink-faint: #93a4b5;
            --canvas: #f5f8f7;
            --white: #ffffff;
            --border: #e5ece9;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 4px 24px rgba(11, 38, 32, 0.08);
            --shadow-lift: 0 14px 44px rgba(11, 38, 32, 0.14);
            --transition: all 0.3s cubic-bezier(0.22, 1, 0.36, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            background: var(--canvas);
            color: var(--ink);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover {
            color: var(--primary);
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(229, 236, 233, 0.8);
            transition: var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 2px 30px rgba(11, 38, 32, 0.08);
        }

        .nav-wrap {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            align-items: center;
            min-height: 80px;
            position: relative;
        }

        .nav-side {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .left-nav {
            justify-content: flex-start;
        }

        .right-nav {
            justify-content: flex-end;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--ink-soft);
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-link i {
            font-size: 15px;
            color: var(--ink-faint);
            transition: var(--transition);
        }

        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-pale, #e8f5f1);
        }

        .nav-link:hover i {
            color: var(--primary);
        }

        .nav-link.active {
            color: var(--primary);
            background: #e8f5f1;
            font-weight: 600;
        }

        .nav-link.active i {
            color: var(--primary);
        }

        .logo-center {
            display: flex;
            flex-direction: column;
            align-items: center;
            line-height: 1.2;
            padding: 0 12px;
        }

        .logo-text {
            font-size: 22px;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .logo-sub {
            font-size: 10px;
            font-weight: 600;
            letter-spacing: 3px;
            color: var(--ink-faint);
            text-transform: uppercase;
            margin-top: 4px;
        }

        .mobile-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--ink);
            background: #f0f4f2;
            cursor: pointer;
            transition: var(--transition);
        }

        .mobile-toggle:hover {
            background: #e0e9e5;
        }

        /* ===== Article Hero ===== */
        .article-hero {
            position: relative;
            padding: 160px 0 110px;
            background: linear-gradient(135deg, rgba(11, 38, 32, 0.92), rgba(13, 110, 90, 0.78)), url('/assets/images/backpic/back-1.png') center/cover;
            color: #fff;
            overflow: hidden;
        }

        .article-hero::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 0;
            right: 0;
            height: 60px;
            background: var(--canvas);
            clip-path: polygon(0 100%, 100% 100%, 100% 60%, 0 0);
        }

        .article-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .article-hero .breadcrumb a {
            color: rgba(255, 255, 255, 0.75);
        }

        .article-hero .breadcrumb a:hover {
            color: var(--accent-light);
        }

        .article-hero .breadcrumb i {
            font-size: 10px;
            opacity: 0.6;
        }

        .article-hero .hero-category {
            display: inline-block;
            background: var(--accent);
            color: var(--dark);
            font-size: 12px;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 999px;
            letter-spacing: 1px;
            margin-bottom: 20px;
        }

        .article-hero h1 {
            font-size: clamp(1.7rem, 4vw, 2.6rem);
            font-weight: 800;
            line-height: 1.35;
            letter-spacing: 0.5px;
            max-width: 800px;
            margin-bottom: 22px;
            color: #fff;
        }

        .hero-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            flex-wrap: wrap;
        }

        .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }

        /* ===== Article Main ===== */
        .article-main {
            position: relative;
            z-index: 2;
            margin-top: -52px;
            padding-bottom: 70px;
        }

        .article-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 340px;
            gap: 32px;
            align-items: start;
        }

        /* ===== Article Card ===== */
        .article-card {
            background: #fff;
            border-radius: 22px;
            box-shadow: var(--shadow);
            padding: 48px;
            border: 1px solid rgba(229, 236, 233, 0.7);
            overflow: hidden;
        }

        .article-body {
            font-size: 1.03rem;
            line-height: 2;
            color: #33424f;
        }

        .article-body h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--dark);
            margin: 2.2em 0 0.9em;
            padding-bottom: 0.35em;
            border-bottom: 2px solid #edf2ef;
            position: relative;
        }

        .article-body h2::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 44px;
            height: 2px;
            background: var(--accent);
        }

        .article-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--dark);
            margin: 1.8em 0 0.7em;
        }

        .article-body p {
            margin-bottom: 1.2em;
        }

        .article-body img {
            border-radius: var(--radius);
            margin: 1.8em 0;
            box-shadow: var(--shadow);
        }

        .article-body blockquote {
            margin: 1.8em 0;
            padding: 1.2em 1.6em;
            background: #f6faf8;
            border-left: 4px solid var(--primary);
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: var(--ink-soft);
        }

        .article-body ul,
        .article-body ol {
            margin: 1.2em 0;
            padding-left: 1.5em;
        }

        .article-body ul li,
        .article-body ol li {
            margin-bottom: 0.5em;
            padding-left: 0.3em;
        }

        .article-body ul li::marker {
            color: var(--primary);
        }

        .article-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 4px;
        }

        .article-body a:hover {
            color: var(--primary-dark);
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.8em 0;
            font-size: 0.95rem;
        }

        .article-body table th,
        .article-body table td {
            border: 1px solid var(--border);
            padding: 12px 14px;
            text-align: left;
        }

        .article-body table th {
            background: #f6faf8;
            font-weight: 600;
            color: var(--dark);
        }

        /* Tags + Share */
        .article-footer-bar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid var(--border);
        }

        .article-tags {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        .article-tags .tag-label {
            font-size: 13px;
            color: var(--ink-faint);
            margin-right: 4px;
        }

        .article-tags .tag {
            display: inline-block;
            background: #f0f5f3;
            color: var(--primary);
            font-size: 12px;
            font-weight: 500;
            padding: 5px 12px;
            border-radius: 6px;
            transition: var(--transition);
            cursor: default;
        }

        .article-tags .tag:hover {
            background: var(--primary);
            color: #fff;
        }

        .article-share {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .article-share a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: #f0f5f3;
            color: var(--ink-soft);
            font-size: 15px;
            transition: var(--transition);
        }

        .article-share a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* Not found */
        .not-found-box {
            text-align: center;
            padding: 90px 30px;
        }

        .not-found-box .not-found-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 84px;
            height: 84px;
            border-radius: 50%;
            background: #f0f5f3;
            color: var(--primary);
            font-size: 34px;
            margin-bottom: 24px;
        }

        .not-found-box h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
        }

        .not-found-box p {
            color: var(--ink-soft);
            margin-bottom: 28px;
        }

        .not-found-box .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--primary);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            padding: 13px 32px;
            border-radius: 999px;
            box-shadow: 0 4px 20px rgba(13, 110, 90, 0.35);
            transition: var(--transition);
        }

        .not-found-box .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(13, 110, 90, 0.45);
            color: #fff;
        }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
            position: sticky;
            top: 100px;
        }

        .sidebar-widget {
            background: #fff;
            border-radius: var(--radius);
            padding: 28px;
            box-shadow: var(--shadow);
            border: 1px solid rgba(229, 236, 233, 0.7);
        }

        .widget-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .widget-title::before {
            content: '';
            display: block;
            width: 4px;
            height: 20px;
            background: var(--accent);
            border-radius: 2px;
        }

        .widget-search {
            display: flex;
            align-items: center;
            background: #f4f8f6;
            border-radius: 12px;
            padding: 4px 16px;
            border: 1px solid transparent;
            transition: var(--transition);
        }

        .widget-search:focus-within {
            border-color: var(--primary-light);
            background: #fff;
        }

        .widget-search i {
            color: var(--ink-faint);
            font-size: 14px;
            margin-right: 10px;
        }

        .widget-search input {
            flex: 1;
            padding: 12px 0;
            font-size: 14px;
            background: transparent;
            color: var(--ink);
        }

        .widget-search input::placeholder {
            color: var(--ink-faint);
        }

        .widget-latest .latest-list {
            list-style: none;
        }

        .widget-latest .latest-list li {
            padding: 12px 0;
            border-bottom: 1px dashed var(--border);
            display: flex;
            gap: 12px;
            align-items: center;
            font-size: 14px;
            line-height: 1.55;
        }

        .widget-latest .latest-list li:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .widget-latest .latest-list li img {
            width: 56px;
            height: 56px;
            border-radius: 8px;
            object-fit: cover;
            flex-shrink: 0;
        }

        .widget-latest .latest-list li a {
            color: var(--ink);
            display: block;
            font-weight: 500;
            -webkit-box-orient: vertical;
            -webkit-line-clamp: 2;
            overflow: hidden;
            display: -webkit-box;
        }

        .widget-latest .latest-list li a:hover {
            color: var(--primary);
        }

        .widget-latest .latest-list li .date {
            display: block;
            font-size: 12px;
            color: var(--ink-faint);
            margin-top: 4px;
        }

        .widget-cats .cat-list {
            list-style: none;
        }

        .widget-cats .cat-list li {
            margin-bottom: 8px;
        }

        .widget-cats .cat-list a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 16px;
            border-radius: 10px;
            background: #f4f8f6;
            color: var(--ink-soft);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
        }

        .widget-cats .cat-list a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateX(4px);
        }

        .widget-cats .cat-list a span {
            font-size: 12px;
            background: rgba(0, 0, 0, 0.05);
            padding: 2px 10px;
            border-radius: 999px;
        }

        .widget-cats .cat-list a:hover span {
            background: rgba(255, 255, 255, 0.25);
        }

        .widget-tags .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .widget-tags .tags-cloud a {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 6px;
            background: #f0f5f3;
            color: var(--ink-soft);
            font-size: 13px;
            transition: var(--transition);
        }

        .widget-tags .tags-cloud a:hover {
            background: var(--accent);
            color: var(--dark);
        }

        .widget-cta {
            background: linear-gradient(135deg, var(--dark), var(--primary-dark));
            color: #fff;
            border: none;
            position: relative;
            overflow: hidden;
        }

        .widget-cta::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: rgba(201, 164, 76, 0.2);
        }

        .widget-cta h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .widget-cta p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 20px;
            line-height: 1.7;
        }

        .widget-cta .btn-widget {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: var(--dark);
            font-size: 14px;
            font-weight: 700;
            padding: 12px 22px;
            border-radius: 999px;
            transition: var(--transition);
        }

        .widget-cta .btn-widget:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            color: var(--dark);
        }

        /* ===== CTA Section ===== */
        .cta-section {
            position: relative;
            padding: 90px 0;
            background: linear-gradient(135deg, rgba(11, 38, 32, 0.94), rgba(13, 110, 90, 0.85)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            color: #fff;
            text-align: center;
        }

        .cta-section h2 {
            font-size: clamp(1.6rem, 3vw, 2.3rem);
            font-weight: 800;
            margin-bottom: 16px;
        }

        .cta-section p {
            max-width: 700px;
            margin: 0 auto 34px;
            font-size: 16px;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.9;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-cta-light {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent);
            color: var(--dark);
            font-size: 15px;
            font-weight: 700;
            padding: 14px 34px;
            border-radius: 999px;
            transition: var(--transition);
        }

        .btn-cta-light:hover {
            background: var(--accent-light);
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(201, 164, 76, 0.4);
            color: var(--dark);
        }

        .btn-cta-outline {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            border: 2px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            padding: 13px 32px;
            border-radius: 999px;
            transition: var(--transition);
        }

        .btn-cta-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
        }

        /* ===== Related ===== */
        .related-section {
            padding: 80px 0 90px;
            background: var(--canvas);
        }

        .section-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            margin-bottom: 36px;
            gap: 20px;
            flex-wrap: wrap;
        }

        .section-title {
            font-size: clamp(1.4rem, 2.5vw, 1.8rem);
            font-weight: 800;
            color: var(--dark);
            position: relative;
            padding-bottom: 12px;
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 42px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }

        .section-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .section-link:hover {
            color: var(--primary-dark);
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .related-card {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid rgba(229, 236, 233, 0.6);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lift);
        }

        .related-card .card-thumb {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }

        .related-card .card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .related-card:hover .card-thumb img {
            transform: scale(1.05);
        }

        .related-card .card-thumb::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(11, 38, 32, 0.55));
        }

        .related-card .thumb-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(255, 255, 255, 0.92);
            color: var(--primary);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 999px;
            z-index: 2;
            backdrop-filter: blur(4px);
        }

        .related-card .card-body {
            padding: 22px 22px 18px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .related-card .card-body h3 {
            font-size: 16px;
            font-weight: 700;
            line-height: 1.6;
            color: var(--ink);
            margin-bottom: 10px;
            -webkit-box-orient: vertical;
            -webkit-line-clamp: 2;
            overflow: hidden;
            display: -webkit-box;
            transition: var(--transition);
        }

        .related-card:hover .card-body h3 {
            color: var(--primary);
        }

        .related-card .card-body p {
            font-size: 13px;
            color: var(--ink-faint);
            margin-bottom: 12px;
            -webkit-box-orient: vertical;
            -webkit-line-clamp: 2;
            overflow: hidden;
            display: -webkit-box;
        }

        .related-card .card-meta {
            margin-top: auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 12px;
            border-top: 1px dashed var(--border);
            font-size: 12px;
            color: var(--ink-faint);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.75);
            padding-top: 70px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .logo-text {
            font-size: 24px;
            color: #fff;
            font-weight: 800;
            margin-bottom: 14px;
            display: block;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 20px;
            max-width: 300px;
        }

        .footer-social {
            display: flex;
            gap: 10px;
        }

        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.7);
            font-size: 16px;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: var(--accent);
            color: var(--dark);
            transform: translateY(-3px);
        }

        .footer-title {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 24px;
            height: 2px;
            background: var(--accent);
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--accent-light);
            transform: translateX(4px);
        }

        .footer-links a i {
            font-size: 12px;
            opacity: 0.5;
        }

        .footer-contact p {
            font-size: 14px;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-contact p i {
            color: var(--accent);
            width: 18px;
            text-align: center;
        }

        .footer-bottom {
            padding: 24px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
            }

            .article-sidebar {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
            }

            .sidebar-widget {
                flex: 1;
                min-width: 260px;
            }

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

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .nav-wrap {
                display: flex;
                justify-content: space-between;
                align-items: center;
                min-height: 70px;
            }

            .nav-side {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 12px 24px 20px;
                box-shadow: 0 16px 40px rgba(11, 38, 32, 0.14);
                border-radius: 0 0 var(--radius) var(--radius);
                gap: 2px;
            }

            .site-header.mobile-open .nav-side {
                display: flex;
            }

            .site-header.mobile-open .left-nav {
                border-bottom: 1px solid var(--border);
                padding-bottom: 8px;
                margin-bottom: 8px;
            }

            .nav-link {
                padding: 12px 16px;
                border-radius: 10px;
                font-size: 15px;
            }

            .logo-center {
                order: 2;
            }

            .mobile-toggle {
                display: flex;
                order: 1;
            }

            .nav-wrap>nav:first-child {
                order: 1;
            }

            .nav-wrap>nav:last-of-type {
                order: 3;
            }

            .nav-wrap .nav-side {
                order: 4;
            }

            .article-card {
                padding: 28px 22px;
            }

            .article-hero {
                padding: 130px 0 100px;
            }

            .article-main {
                margin-top: -36px;
            }

            .related-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .footer-brand p {
                max-width: 100%;
            }

            .cta-section {
                padding: 64px 0;
            }

            .article-footer-bar {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 18px;
            }

            .logo-text {
                font-size: 18px;
            }

            .logo-sub {
                font-size: 9px;
                letter-spacing: 2px;
            }

            .article-card {
                padding: 22px 16px;
                border-radius: 16px;
            }

            .article-body {
                font-size: 0.97rem;
                line-height: 1.9;
            }

            .article-hero h1 {
                font-size: 1.45rem;
            }

            .hero-meta {
                gap: 12px;
                font-size: 13px;
            }

            .sidebar-widget {
                min-width: 100%;
            }

            .widget-latest .latest-list li img {
                width: 64px;
                height: 64px;
            }

            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }

            .btn-cta-light,
            .btn-cta-outline {
                width: 100%;
                justify-content: center;
            }
        }

        @media (min-width: 769px) {
            .site-header.mobile-open .mobile-toggle {
                display: none;
            }
        }

/* roulang page: category2 */
:root {
  --primary: #16324f;
  --primary-light: #2a4a6b;
  --primary-dark: #0e1f33;
  --accent: #c2a36b;
  --accent-dark: #a88948;
  --accent-light: #dac49a;
  --bg-light: #f3f6fa;
  --bg-dark: #0d1b29;
  --text: #132030;
  --text-muted: #5f6f80;
  --border: #e6eaef;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 4px 12px rgba(14, 31, 51, 0.06);
  --shadow-md: 0 14px 34px rgba(14, 31, 51, 0.10);
  --shadow-lg: 0 24px 56px rgba(14, 31, 51, 0.14);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  color: var(--text);
  background: #ffffff;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ========== Header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 16px rgba(14, 31, 51, 0.05);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  position: relative;
}

.nav-side {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: 999px;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 15px;
  line-height: 1.2;
  transition: all 0.25s ease;
}

.nav-link i {
  font-size: 14px;
  color: var(--accent);
  transition: color 0.25s ease;
}

.nav-link:hover {
  color: var(--primary);
  background: rgba(22, 50, 79, 0.06);
}

.nav-link:hover i {
  color: var(--accent-dark);
}

.nav-link.active {
  color: var(--primary);
  background: rgba(22, 50, 79, 0.08);
  font-weight: 700;
}

.logo-center {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  text-decoration: none;
}

.logo-text {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--primary);
  line-height: 1.2;
}

.logo-sub {
  display: block;
  font-size: 10px;
  letter-spacing: 4px;
  color: var(--accent);
  font-weight: 600;
  text-transform: uppercase;
  margin-top: 2px;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 22px;
  color: var(--primary);
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  transition: background 0.2s;
}

.mobile-toggle:hover {
  background: rgba(22, 50, 79, 0.06);
}

.mobile-menu {
  display: none;
  background: #ffffff;
  border-top: 1px solid var(--border);
  padding: 12px 20px 20px;
  box-shadow: var(--shadow-md);
}

.mobile-menu.open {
  display: block;
}

.mobile-menu a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 12px;
  color: var(--text);
  font-weight: 500;
  font-size: 15px;
  transition: background 0.2s;
}

.mobile-menu a:hover {
  background: rgba(22, 50, 79, 0.05);
}

.mobile-menu a.active {
  background: rgba(22, 50, 79, 0.08);
  color: var(--primary);
  font-weight: 700;
}

.mobile-menu a i {
  color: var(--accent);
  width: 20px;
  text-align: center;
}

/* ========== Hero ========== */
.page-hero {
  position: relative;
  padding: 120px 0 100px;
  background: url('/assets/images/backpic/back-2.png') no-repeat center center/cover;
  color: #ffffff;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10, 22, 38, 0.92), rgba(14, 31, 51, 0.72) 50%, rgba(22, 50, 79, 0.45));
  z-index: 1;
}

.page-hero .container {
  position: relative;
  z-index: 2;
}

.page-hero-inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.hero-badge {
  background: rgba(194, 163, 107, 0.16);
  color: #e5d3ae;
  border: 1px solid rgba(194, 163, 107, 0.35);
}

.page-hero h1 {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.2;
  margin: 22px 0 0;
  color: #ffffff;
  text-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
}

.page-hero p {
  font-size: 17px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.88);
  margin-top: 20px;
  max-width: 660px;
  margin-left: auto;
  margin-right: auto;
}

.hero-btns {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 34px;
}

.hero-breadcrumb {
  margin-top: 52px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.hero-breadcrumb a {
  color: rgba(255, 255, 255, 0.85);
  transition: color 0.2s;
}

.hero-breadcrumb a:hover {
  color: #e5d3ae;
}

.hero-breadcrumb i {
  font-size: 12px;
}

.hero-breadcrumb span {
  color: #e5d3ae;
  font-weight: 600;
}

/* ========== 通用板块 ========== */
.section {
  padding: 96px 0;
}

.section-alt {
  background: var(--bg-light);
}

.section-header {
  max-width: 720px;
  margin: 0 auto;
}

.section-title {
  font-size: 34px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 0.5px;
  line-height: 1.3;
}

.section-desc {
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.7;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 18px;
  border-radius: 999px;
  background: rgba(194, 163, 107, 0.10);
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  border: 1px solid transparent;
}

.badge i {
  font-size: 14px;
}

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.2;
  text-decoration: none;
  transition: all 0.3s ease;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 8px 24px rgba(22, 50, 79, 0.25);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(22, 50, 79, 0.32);
  color: #ffffff;
}

.btn-gold {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 8px 24px rgba(194, 163, 107, 0.30);
}

.btn-gold:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  color: #ffffff;
}

.btn-outline {
  background: transparent;
  color: #ffffff;
  border: 1.5px solid rgba(255, 255, 255, 0.7);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #ffffff;
  transform: translateY(-2px);
  color: #ffffff;
}

/* ========== 图文总览 ========== */
.overview-media {
  position: relative;
  padding-top: 28px;
  padding-left: 28px;
}

.overview-media > img:first-child {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  position: relative;
  z-index: 1;
  width: 100%;
  height: 420px;
  object-fit: cover;
}

.overview-media::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 70%;
  height: 70%;
  border: 3px solid var(--accent);
  border-radius: var(--radius-lg);
  opacity: 0.45;
}

.overview-media-small {
  position: absolute;
  right: -16px;
  bottom: -28px;
  width: 46%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 4px solid #ffffff;
  z-index: 2;
  height: 180px;
  object-fit: cover;
}

.overview-list {
  list-style: none;
  display: grid;
  gap: 18px;
}

.overview-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.overview-list li > i {
  font-size: 22px;
  color: var(--accent);
  margin-top: 2px;
  flex-shrink: 0;
}

.overview-list li strong {
  display: block;
  font-size: 16px;
  color: var(--primary);
  margin-bottom: 2px;
}

.overview-list li span {
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ========== 卡片 ========== */
.card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 32px 26px;
  transition: box-shadow 0.35s ease, transform 0.35s ease, border-color 0.35s ease;
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-6px);
  border-color: rgba(194, 163, 107, 0.40);
}

.value-card {
  text-align: center;
}

.value-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(194, 163, 107, 0.16), rgba(194, 163, 107, 0.05));
  color: var(--accent-dark);
  font-size: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  border: 1px solid rgba(194, 163, 107, 0.20);
  transition: transform 0.3s ease, background 0.3s ease;
}

.value-card:hover .value-icon {
  transform: rotate(-6deg) scale(1.06);
  background: linear-gradient(135deg, rgba(194, 163, 107, 0.24), rgba(194, 163, 107, 0.10));
}

.value-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
}

.value-card p {
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.75;
}

/* ========== 封面卡片 ========== */
.cover-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  cursor: pointer;
  min-height: 320px;
}

.cover-card img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.cover-card:hover img {
  transform: scale(1.06);
}

.cover-content {
  position: absolute;
  inset: 0;
  padding: 26px;
  background: linear-gradient(to top, rgba(8, 20, 34, 0.92) 0%, rgba(8, 20, 34, 0.35) 55%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  z-index: 1;
}

.cover-tag {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  padding: 4px 14px;
  border-radius: 999px;
  background: rgba(194, 163, 107, 0.22);
  color: #e5d3ae;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 10px;
  border: 1px solid rgba(194, 163, 107, 0.30);
  letter-spacing: 0.3px;
}

.cover-content h3 {
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
}

.cover-content p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.80);
  margin-top: 4px;
  line-height: 1.6;
}

/* ========== 时间线 ========== */
.timeline-wrap {
  max-width: 860px;
}

.timeline {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 10px;
  bottom: 10px;
  width: 3px;
  border-radius: 999px;
  background: linear-gradient(to bottom, var(--accent), var(--primary));
  opacity: 0.30;
}

.timeline-item {
  position: relative;
  padding: 0 0 48px 72px;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: 12px;
  top: 8px;
  width: 19px;
  height: 19px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--bg-light);
  box-shadow: 0 0 0 3px rgba(194, 163, 107, 0.45);
}

.timeline-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px 30px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.timeline-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.timeline-phase {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent-dark);
  background: rgba(194, 163, 107, 0.12);
  padding: 3px 14px;
  border-radius: 999px;
  margin-bottom: 10px;
  letter-spacing: 1px;
}

.timeline-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}

.timeline-card p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.75;
}

/* ========== 数据统计 ========== */
.stats-section {
  background: var(--primary-dark) url('/assets/images/backpic/back-1.png') no-repeat center center/cover;
  position: relative;
}

.stats-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(10, 22, 38, 0.88);
}

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

.stat-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 40px 20px;
  text-align: center;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: background 0.3s ease, transform 0.3s ease;
}

.stat-card:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-4px);
}

.stat-number {
  font-size: 46px;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.1;
  font-family: 'Georgia', 'PingFang SC', serif;
}

.stat-label {
  font-size: 14.5px;
  color: rgba(255, 255, 255, 0.75);
  margin-top: 10px;
}

/* ========== FAQ ========== */
.faq-grid {
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
  display: grid;
  gap: 18px;
}

.faq-item {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow 0.35s ease, border-color 0.35s ease;
}

.faq-item:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(194, 163, 107, 0.30);
}

.faq-question {
  margin: 0;
  padding: 22px 28px;
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.faq-question i {
  font-size: 16px;
  color: var(--accent);
  transition: transform 0.3s ease;
}

.faq-item:hover .faq-question i {
  transform: translateY(2px);
}

.faq-answer {
  padding: 0 28px 24px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.85;
  display: block;
}

/* ========== CTA ========== */
.cta-section {
  position: relative;
  padding: 110px 0;
  background: url('/assets/images/backpic/back-3.png') no-repeat center center/cover;
  background-attachment: fixed;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(10, 22, 38, 0.95), rgba(22, 50, 79, 0.78));
}

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

.cta-inner {
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
  color: #ffffff;
}

.cta-badge {
  background: rgba(194, 163, 107, 0.18);
  color: #e5d3ae;
  border-color: rgba(194, 163, 107, 0.30);
}

.cta-inner h2 {
  font-size: 38px;
  font-weight: 800;
  color: #ffffff;
  margin: 18px 0 16px;
  line-height: 1.3;
}

.cta-inner p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.8;
}

.cta-btns {
  display: flex;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 32px;
}

/* ========== 返回顶部 ========== */
.back-to-top {
  position: fixed;
  right: 28px;
  bottom: 28px;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: var(--primary);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  box-shadow: var(--shadow-md);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all 0.3s ease;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--accent);
  transform: translateY(-2px);
  color: #ffffff;
}

/* ========== Footer ========== */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255, 255, 255, 0.70);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.3fr;
  gap: 48px;
  padding: 64px 0 48px;
}

.footer-brand .logo-text {
  color: #ffffff;
  font-size: 24px;
  font-weight: 800;
  letter-spacing: 2px;
}

.footer-brand p {
  margin-top: 18px;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.60);
  max-width: 300px;
}

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.80);
  font-size: 16px;
  transition: all 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-social a:hover {
  background: var(--accent);
  color: #ffffff;
  transform: translateY(-3px);
}

.footer-title {
  font-size: 16px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}

.footer-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 3px;
  border-radius: 999px;
  background: var(--accent);
}

.footer-links {
  list-style: none;
}

.footer-links li + li {
  margin-top: 10px;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: rgba(255, 255, 255, 0.65);
  font-size: 14.5px;
  transition: color 0.25s, padding-left 0.25s;
}

.footer-links a i {
  color: var(--accent);
  font-size: 12px;
}

.footer-links a:hover {
  color: #ffffff;
  padding-left: 5px;
}

.footer-contact p {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14.5px;
  margin-bottom: 12px;
  color: rgba(255, 255, 255, 0.65);
}

.footer-contact i {
  color: var(--accent);
  margin-top: 4px;
  width: 16px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
}

.footer-bottom p {
  text-align: center;
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.45);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .section {
    padding: 72px 0;
  }

  .page-hero {
    padding: 100px 0 80px;
  }

  .page-hero h1 {
    font-size: 44px;
  }

  .section-title {
    font-size: 30px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .nav-side {
    display: none;
  }

  .mobile-toggle {
    display: block;
  }

  .page-hero {
    padding: 80px 0 64px;
  }

  .page-hero h1 {
    font-size: 34px;
  }

  .page-hero p {
    font-size: 15.5px;
  }

  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 27px;
  }

  .section-desc {
    font-size: 15px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 48px 0 32px;
  }

  .footer-bottom p {
    font-size: 12.5px;
    padding: 0 16px;
  }

  .timeline-item {
    padding-left: 56px;
  }

  .overview-media-small {
    right: 0;
    bottom: -20px;
    height: 150px;
  }

  .overview-media > img:first-child {
    height: 340px;
  }

  .cta-section {
    padding: 80px 0;
    background-attachment: scroll;
  }

  .cta-inner h2 {
    font-size: 30px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 20px;
  }

  .page-hero h1 {
    font-size: 28px;
  }

  .page-hero p {
    font-size: 14.5px;
  }

  .btn {
    padding: 12px 22px;
    font-size: 14px;
  }

  .value-card {
    padding: 26px 18px;
  }

  .timeline-card {
    padding: 20px;
  }

  .faq-question {
    padding: 18px 20px;
    font-size: 15.5px;
  }

  .faq-answer {
    padding: 0 20px 18px;
    font-size: 14px;
  }

  .cta-inner h2 {
    font-size: 26px;
  }

  .cta-inner p {
    font-size: 15px;
  }

  .overview-list li span {
    font-size: 13.5px;
  }

  .stat-number {
    font-size: 36px;
  }
}

/* roulang page: category3 */
:root {
  --primary: #b78a3f;
  --primary-dark: #96702f;
  --primary-light: #f7ebd2;
  --accent: #122c44;
  --accent-2: #1e4e6f;
  --dark: #0e1c2a;
  --bg: #f7f6f3;
  --bg-soft: #f1f0ec;
  --text: #1e293b;
  --text-muted: #6b7a8f;
  --border: #e4e0d8;
  --card-bg: #ffffff;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow-sm: 0 6px 18px rgba(15, 27, 45, .06);
  --shadow: 0 18px 40px rgba(15, 27, 45, .08);
  --shadow-lg: 0 30px 60px rgba(15, 27, 45, .12);
  --transition: all .3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

button {
  font-family: inherit;
  cursor: pointer;
}

ul,
ol {
  list-style: none;
}

.container {
  max-width: 1220px;
  margin-inline: auto;
  padding-inline: 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  border: 1px solid transparent;
  transition: var(--transition);
  cursor: pointer;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 10px 20px rgba(183, 138, 63, .25);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(183, 138, 63, .32);
}

.btn-outline {
  background: transparent;
  color: var(--dark);
  border-color: #cbd5e1;
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary-dark);
  background: var(--primary-light);
  transform: translateY(-2px);
}

.btn-light {
  background: #fff;
  color: var(--dark);
}

.btn-light:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
}

.btn-ghost {
  background: rgba(255, 255, 255, .12);
  color: #fff;
  border-color: rgba(255, 255, 255, .45);
  backdrop-filter: blur(8px);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, .22);
  transform: translateY(-2px);
}

.btn:focus-visible,
.nav-link:focus-visible,
a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(183, 138, 63, .35);
  outline-offset: 2px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow .3s ease;
}

.nav-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
}

.nav-side {
  display: flex;
  align-items: center;
  gap: 4px;
  min-width: 0;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 15px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  color: #334155;
}

.nav-link:hover {
  color: var(--primary);
  background: rgba(183, 138, 63, .08);
}

.nav-link.active {
  color: var(--primary-dark);
  background: var(--primary-light);
  font-weight: 700;
}

.logo-center {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.logo-text {
  font-size: 25px;
  font-weight: 800;
  letter-spacing: .04em;
  color: var(--dark);
  line-height: 1.1;
}

.logo-sub {
  font-size: 10px;
  letter-spacing: .38em;
  color: var(--primary);
  font-weight: 600;
}

.mobile-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--primary-dark);
  border: none;
  border-radius: 12px;
  font-size: 18px;
}

.mobile-menu {
  display: none;
  flex-direction: column;
  padding: 12px 24px 20px;
  background: #fff;
  border-top: 1px solid var(--border);
}

.mobile-menu.open {
  display: flex;
}

.mobile-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 500;
}

.mobile-link:hover,
.mobile-link.active {
  background: var(--primary-light);
  color: var(--primary-dark);
  font-weight: 700;
}

@media (max-width: 900px) {
  .nav-side {
    display: none;
  }
  .mobile-toggle {
    display: inline-flex;
  }
}

.page-banner {
  position: relative;
  padding: 120px 0 84px;
  background-size: cover;
  background-position: center;
}

.banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(10, 25, 42, .92) 0%, rgba(10, 25, 42, .70) 50%, rgba(18, 44, 68, .35) 100%), rgba(10, 25, 42, .35);
}

.banner-content {
  position: relative;
  z-index: 2;
  color: #fff;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  margin-bottom: 22px;
  color: rgba(255, 255, 255, .72);
}

.breadcrumb a {
  color: rgba(255, 255, 255, .72);
}

.breadcrumb a:hover {
  color: #fff;
}

.breadcrumb .sep {
  color: rgba(255, 255, 255, .4);
}

.banner-content h1 {
  font-size: clamp(34px, 5vw, 54px);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
  letter-spacing: .02em;
}

.banner-content p {
  font-size: 17px;
  color: rgba(255, 255, 255, .82);
  max-width: 720px;
  line-height: 1.8;
}

.cat-tabs-wrap {
  position: relative;
  z-index: 5;
  margin-top: -36px;
}

.cat-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.cat-tab {
  padding: 9px 18px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--border);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  box-shadow: var(--shadow-sm);
}

.cat-tab:hover {
  color: var(--primary-dark);
  border-color: var(--primary);
  transform: translateY(-2px);
}

.cat-tab.active {
  background: var(--dark);
  color: #fff;
  border-color: var(--dark);
  box-shadow: 0 10px 20px rgba(15, 28, 45, .18);
}

.section {
  padding: 90px 0;
}

@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }
}

.section-head {
  max-width: 640px;
  margin-bottom: 48px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.section-head h2 {
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--dark);
}

.section-head p {
  margin-top: 14px;
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
}

.featured-wrap {
  position: relative;
  z-index: 2;
  padding-top: 42px;
}

.featured-main {
  position: relative;
  overflow: hidden;
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  min-height: 420px;
  display: block;
}

.featured-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}

.featured-main:hover img {
  transform: scale(1.04);
}

.featured-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(14, 28, 42, 0) 30%, rgba(14, 28, 42, .78) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 28px;
  color: #fff;
}

.featured-main .hot-badge {
  position: absolute;
  top: 20px;
  left: 20px;
}

.featured-title {
  font-size: 22px;
  font-weight: 800;
  line-height: 1.4;
}

.featured-excerpt {
  color: rgba(255, 255, 255, .8);
  font-size: 14px;
  margin-top: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.side-news {
  display: flex;
  gap: 14px;
  align-items: center;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 12px;
  transition: var(--transition);
}

.side-news:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: rgba(183, 138, 63, .3);
}

.side-thumb {
  width: 90px;
  height: 76px;
  flex-shrink: 0;
  border-radius: 12px;
  overflow: hidden;
}

.side-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.side-news h3 {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  color: var(--dark);
}

.side-news h3:hover {
  color: var(--primary-dark);
}

.side-news time {
  font-size: 12px;
  color: var(--text-muted);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: rgba(255, 255, 255, .16);
  color: #fff;
  backdrop-filter: blur(6px);
}

.cat-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 700;
}

.hot-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 999px;
  background: linear-gradient(135deg, #e6675a, #c9473a);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  box-shadow: 0 8px 16px rgba(201, 71, 58, .28);
}

.news-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.news-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(183, 138, 63, .3);
}

.news-cover-wrap {
  position: relative;
  display: block;
  height: 210px;
  overflow: hidden;
}

.news-cover-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

.news-card:hover .news-cover-wrap img {
  transform: scale(1.06);
}

.badge-date {
  position: absolute;
  left: 16px;
  bottom: 16px;
  background: rgba(14, 28, 42, .55);
  color: #fff;
  backdrop-filter: blur(8px);
}

.news-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  font-size: 12px;
  color: var(--text-muted);
}

.news-title {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.45;
}

.news-title a {
  color: var(--dark);
}

.news-title a:hover {
  color: var(--primary-dark);
}

.news-excerpt {
  margin-top: 10px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-more {
  margin-top: auto;
  padding-top: 18px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary-dark);
}

.news-more i {
  transition: transform .3s;
}

.news-more:hover i {
  transform: translateX(4px);
}

.rank-section {
  position: relative;
  padding: 90px 0;
  background: var(--dark);
  color: #fff;
  overflow: hidden;
}

.rank-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.png') center/cover;
  opacity: .18;
}

.rank-section .container {
  position: relative;
  z-index: 2;
}

.section-tag.light {
  background: rgba(255, 255, 255, .14);
  color: var(--primary-light);
}

.rank-intro h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  line-height: 1.2;
}

.rank-intro p {
  color: rgba(255, 255, 255, .7);
  margin-top: 14px;
  font-size: 15px;
  line-height: 1.8;
}

.rank-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.rank-item {
  display: flex;
  align-items: center;
  gap: 18px;
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 16px;
  padding: 18px 20px;
  backdrop-filter: blur(6px);
  transition: var(--transition);
}

.rank-item:hover {
  background: rgba(255, 255, 255, .1);
  transform: translateX(6px);
}

.rank-num {
  font-size: 26px;
  font-weight: 800;
  color: var(--primary);
  font-style: italic;
  min-width: 44px;
}

.rank-info {
  flex: 1;
  min-width: 0;
}

.rank-title {
  font-weight: 700;
  font-size: 16px;
  line-height: 1.5;
}

.rank-title a:hover {
  color: var(--primary-light);
}

.rank-desc {
  color: rgba(255, 255, 255, .55);
  font-size: 13px;
  margin-top: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.rank-heat {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: rgba(255, 255, 255, .65);
  background: rgba(255, 255, 255, .08);
  padding: 6px 12px;
  border-radius: 999px;
  flex-shrink: 0;
}

@media (max-width: 640px) {
  .rank-desc {
    display: none;
  }
  .rank-item {
    gap: 10px;
    padding: 14px;
  }
}

.media-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 28px 24px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.media-card::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), transparent);
  opacity: 0;
  transition: opacity .3s;
}

.media-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.media-card:hover::after {
  opacity: 1;
}

.media-card i {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 20px;
  margin-bottom: 20px;
}

.media-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--dark);
}

.media-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

.media-card a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary-dark);
}

.media-card a i {
  width: auto;
  height: auto;
  background: none;
  color: inherit;
  font-size: 12px;
  margin: 0;
}

.faq-section {
  background: var(--bg-soft);
}

.faq-head h2 {
  font-size: clamp(28px, 4vw, 40px);
  color: var(--dark);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}

.faq-head p {
  color: var(--text-muted);
  font-size: 15px;
  margin-bottom: 28px;
  line-height: 1.8;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.faq-item[open] {
  border-color: rgba(183, 138, 63, .4);
  box-shadow: var(--shadow);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 22px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 700;
  color: var(--dark);
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '\f107';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  color: var(--primary);
  transition: transform .3s;
}

.faq-item[open] summary::after {
  transform: rotate(180deg);
}

.faq-item p {
  padding: 0 22px 20px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
}

.cta-section {
  position: relative;
  padding: 90px 0;
  background-size: cover;
  background-position: center;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(11, 24, 40, .92), rgba(18, 44, 68, .78));
}

.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
}

.cta-inner h2 {
  font-size: clamp(28px, 4.5vw, 44px);
  font-weight: 800;
  margin-bottom: 14px;
}

.cta-inner p {
  max-width: 640px;
  margin: 0 auto 32px;
  color: rgba(255, 255, 255, .78);
  font-size: 16px;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.site-footer {
  background: #0b1624;
  color: #b7c3d0;
  padding-top: 70px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 44px;
}

.footer-brand p {
  margin-top: 16px;
  font-size: 14px;
  color: rgba(255, 255, 255, .55);
  line-height: 1.8;
  max-width: 300px;
}

.footer-social {
  display: flex;
  gap: 10px;
  margin-top: 22px;
}

.footer-social a {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(255, 255, 255, .08);
  color: rgba(255, 255, 255, .7);
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-3px);
}

.footer-title {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}

.footer-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 26px;
  height: 2px;
  background: var(--primary);
}

.footer-links li a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  font-size: 14px;
  color: rgba(255, 255, 255, .6);
}

.footer-links li a:hover {
  color: var(--primary-light);
  padding-left: 4px;
}

.footer-contact p {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 5px 0;
  font-size: 14px;
  color: rgba(255, 255, 255, .6);
}

.footer-contact i {
  color: var(--primary);
  width: 16px;
  text-align: center;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, .45);
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.float-action {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 50;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--primary);
  color: #fff;
  padding: 14px 22px;
  border-radius: 999px;
  box-shadow: 0 16px 32px rgba(183, 138, 63, .36);
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
}

.float-action:hover {
  background: var(--primary-dark);
  transform: translateY(-4px);
}

@media (max-width: 520px) {
  .float-action span {
    display: none;
  }
  .float-action {
    padding: 16px;
  }
}