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

:root {
    --primary: #0A4D8C;
    --primary-light: #1565C0;
    --primary-dark: #063A6B;
    --accent: #FF6B35;
    --accent-light: #FF8C42;
    --dark: #1a1a2e;
    --gray-dark: #333;
    --gray: #666;
    --gray-light: #f5f5f5;
    --gray-border: #e0e0e0;
    --white: #ffffff;
    --text: #2c2c2c;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-hover: 0 8px 30px rgba(0,0,0,0.15);
    --transition: all 0.3s ease;
    --radius: 8px;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    color: var(--text);
    background: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========== Top Bar ========== */
.top-bar {
    background: var(--dark);
    color: rgba(255,255,255,0.85);
    font-size: 13px;
    padding: 8px 0;
}

.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.top-bar-left {
    display: flex;
    gap: 20px;
    align-items: center;
}

.top-bar-left span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.top-bar-right {
    display: flex;
    gap: 12px;
}

.top-bar-right a {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    transition: var(--transition);
    font-size: 14px;
}

.top-bar-right a:hover {
    background: var(--accent);
    transform: translateY(-2px);
}

/* ========== Header / Navigation ========== */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.06);
    transition: var(--transition);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
}

.logo-icon {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 22px;
    font-weight: 800;
    flex-shrink: 0;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-text .en {
    font-size: 11px;
    color: var(--gray);
    font-weight: 400;
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    gap: 5px;
    align-items: center;
}

.nav-menu > li > a {
    padding: 10px 16px;
    font-size: 15px;
    font-weight: 500;
    color: var(--gray-dark);
    border-radius: 6px;
    transition: var(--transition);
    display: block;
}

.nav-menu > li > a:hover,
.nav-menu > li > a.active {
    color: var(--primary);
    background: rgba(10,77,140,0.06);
}

/* Dropdown */
.nav-menu > li {
    position: relative;
}

.dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    min-width: 200px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.12);
    border-radius: var(--radius);
    padding: 8px 0;
    margin: 0;
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    z-index: 100;
}

.nav-menu > li:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown li a {
    padding: 10px 20px;
    font-size: 14px;
    color: var(--gray-dark);
    transition: var(--transition);
    display: block;
}

.dropdown li a:hover {
    background: var(--gray-light);
    color: var(--primary);
    padding-left: 26px;
}

.dropdown .dropdown-title {
    font-weight: 600;
    color: var(--primary);
    font-size: 13px;
    padding: 10px 20px 4px;
    border-bottom: 1px solid var(--gray-border);
    margin-bottom: 4px;
}

.mobile-toggle {
    display: none;
    font-size: 24px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--primary);
}

/* ========== Page Banner ========== */
.page-banner {
    height: 280px;
    background: linear-gradient(135deg, rgba(10,42,74,0.75) 0%, rgba(10,77,140,0.6) 50%, rgba(21,101,192,0.45) 100%),
                linear-gradient(135deg, #0a2a4a 0%, #0A4D8C 50%, #1565C0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.page-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,107,53,0.15), transparent);
    border-radius: 50%;
}

.page-banner::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255,255,255,0.05), transparent);
    border-radius: 50%;
}

.page-banner-content {
    position: relative;
    z-index: 2;
}

.page-banner h1 {
    font-size: 40px;
    font-weight: 800;
    margin-bottom: 12px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.page-banner p {
    font-size: 16px;
    opacity: 0.9;
}

/* ========== Breadcrumb ========== */
.breadcrumb {
    background: var(--gray-light);
    padding: 14px 0;
    border-bottom: 1px solid var(--gray-border);
}

.breadcrumb ul {
    display: flex;
    gap: 8px;
    align-items: center;
    font-size: 14px;
    color: var(--gray);
}

.breadcrumb a {
    color: var(--primary);
    transition: var(--transition);
}

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

.breadcrumb-separator {
    color: var(--gray-border);
}

/* ========== Section Common ========== */
.section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.section-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 12px;
}

.section-divider {
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 2px;
    margin: 0 auto 16px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

/* ========== Intro Section ========== */
.intro {
    padding: 80px 0;
    background: var(--white);
}

.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.intro-text .section-tag {
    margin-bottom: 12px;
}

.intro-text h2 {
    font-size: 30px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
}

.intro-text .divider {
    width: 50px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 2px;
    margin-bottom: 24px;
}

.intro-text p {
    font-size: 15px;
    color: var(--gray-dark);
    line-height: 1.9;
    margin-bottom: 16px;
}

.intro-text .highlight {
    color: var(--primary);
    font-weight: 600;
}

.intro-visual {
    position: relative;
}

.intro-card {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    border-radius: 16px;
    padding: 40px;
    color: white;
    box-shadow: var(--shadow-hover);
    position: relative;
    overflow: hidden;
}

.intro-card::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -20%;
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(255,107,53,0.2), transparent);
    border-radius: 50%;
}

.intro-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 20px;
    position: relative;
    z-index: 2;
}

.intro-card-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    position: relative;
    z-index: 2;
}

.intro-card-item {
    background: rgba(255,255,255,0.1);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    transition: var(--transition);
}

.intro-card-item:hover {
    background: rgba(255,255,255,0.18);
    transform: translateY(-4px);
}

.intro-card-item .icon {
    font-size: 32px;
    margin-bottom: 8px;
}

.intro-card-item .name {
    font-size: 14px;
    font-weight: 600;
}

/* ========== Stats Section ========== */
.stats {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    padding: 60px 0;
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}

.stat-item {
    position: relative;
}

.stat-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -15px;
    top: 15%;
    height: 70%;
    width: 1px;
    background: rgba(255,255,255,0.15);
}

.stat-item .num {
    font-size: 48px;
    font-weight: 800;
    color: var(--accent-light);
    line-height: 1;
}

.stat-item .num span {
    font-size: 20px;
    color: rgba(255,255,255,0.7);
}

.stat-item .label {
    font-size: 15px;
    margin-top: 10px;
    opacity: 0.85;
}

/* ========== Timeline Section ========== */
.timeline-section {
    background: var(--gray-light);
    padding: 80px 0;
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding: 20px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, var(--primary), var(--accent));
    transform: translateX(-50%);
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    width: 50%;
    padding: 0 40px 50px 0;
    left: 0;
}

.timeline-item:nth-child(even) {
    left: 50%;
    padding: 0 0 50px 40px;
}

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

.timeline-dot {
    position: absolute;
    right: -10px;
    top: 5px;
    width: 20px;
    height: 20px;
    background: var(--white);
    border: 4px solid var(--accent);
    border-radius: 50%;
    z-index: 2;
    transition: var(--transition);
}

.timeline-item:nth-child(even) .timeline-dot {
    left: -10px;
    right: auto;
}

.timeline-item:hover .timeline-dot {
    background: var(--accent);
    transform: scale(1.2);
}

.timeline-content {
    background: white;
    border-radius: 12px;
    padding: 24px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.timeline-item:hover .timeline-content {
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}

.timeline-year {
    font-size: 22px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 8px;
}

.timeline-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 8px;
}

.timeline-desc {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.7;
}

/* ========== Bases Section ========== */
.bases {
    padding: 80px 0;
    background: var(--white);
}

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

.base-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--gray-border);
}

.base-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-6px);
    border-color: var(--primary);
}

.base-card-top {
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    color: white;
    position: relative;
    overflow: hidden;
}

.base-card:nth-child(1) .base-card-top {
    background: linear-gradient(135deg, #0A4D8C, #1565C0);
}
.base-card:nth-child(2) .base-card-top {
    background: linear-gradient(135deg, #FF6B35, #F7931E);
}
.base-card:nth-child(3) .base-card-top {
    background: linear-gradient(135deg, #1a1a2e, #16213e);
}
.base-card:nth-child(4) .base-card-top {
    background: linear-gradient(135deg, #11998e, #38ef7d);
}
.base-card:nth-child(5) .base-card-top {
    background: linear-gradient(135deg, #6a3093, #a044ff);
}
.base-card:nth-child(6) .base-card-top {
    background: linear-gradient(135deg, #2c5364, #203a43);
}

.base-card-top::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background: linear-gradient(to top, rgba(0,0,0,0.2), transparent);
}

.base-card-body {
    padding: 24px;
}

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

.base-card-body .location {
    font-size: 13px;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 10px;
}

.base-card-body p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.7;
}

/* ========== Culture Section ========== */
.culture {
    padding: 80px 0;
    background: var(--gray-light);
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.culture-card {
    background: white;
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

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

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

.culture-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: white;
}

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

.culture-card p {
    font-size: 15px;
    color: var(--gray);
    line-height: 1.8;
}

/* ========== Advantages Section ========== */
.advantages {
    padding: 80px 0;
    background: var(--white);
}

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

.advantage-card {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-top: 3px solid transparent;
}

.advantage-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-6px);
    border-top-color: var(--accent);
}

.advantage-icon {
    width: 56px;
    height: 56px;
    background: rgba(10,77,140,0.08);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 16px;
    transition: var(--transition);
}

.advantage-card:hover .advantage-icon {
    background: var(--primary);
    color: white;
}

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

.advantage-card p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.7;
}

/* ========== Honors Section ========== */
.honors {
    padding: 80px 0;
    background: var(--gray-light);
}

.honors-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.honor-item {
    background: white;
    border-radius: 10px;
    padding: 30px 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.honor-item:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}

.honor-icon {
    font-size: 40px;
    margin-bottom: 12px;
}

.honor-item h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 6px;
}

.honor-item p {
    font-size: 13px;
    color: var(--gray);
}

/* ========== CTA Section ========== */
.cta {
    padding: 60px 0;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,107,53,0.15), transparent);
    border-radius: 50%;
}

.cta h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
    position: relative;
    z-index: 2;
}

.cta p {
    font-size: 16px;
    opacity: 0.85;
    margin-bottom: 24px;
    position: relative;
    z-index: 2;
}

.cta .btn {
    position: relative;
    z-index: 2;
}

/* ========== Buttons ========== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 12px 28px;
    border-radius: var(--radius);
    font-size: 15px;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--accent);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255,107,53,0.4);
}

.btn-outline {
    background: transparent;
    color: white;
    border: 2px solid rgba(255,255,255,0.5);
}

.btn-outline:hover {
    background: white;
    color: var(--primary);
    border-color: white;
}

/* ========== Footer ========== */
.footer {
    background: var(--dark);
    color: rgba(255,255,255,0.8);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 3fr  1fr 1.5fr;
    gap: 40px;
    margin-bottom: 40px;
}
.footer-brand .logo {
    color: white;
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 16px;
    opacity: 0.7;
}

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

.footer-social a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    transition: var(--transition);
    font-size: 16px;
}

.footer-social a:hover {
    background: var(--accent);
    transform: translateY(-2px);
}

.footer-col h4 {
    font-size: 16px;
    font-weight: 600;
    color: white;
    margin-bottom: 16px;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    font-size: 14px;
    opacity: 0.7;
    transition: var(--transition);
}

.footer-col ul li a:hover {
    opacity: 1;
    color: var(--accent);
    padding-left: 4px;
}

.footer-contact li {
    display: flex;
    gap: 10px;
    font-size: 14px;
    opacity: 0.7;
    margin-bottom: 12px;
}

.footer-contact .icon {
    flex-shrink: 0;
    font-size: 16px;
}

.footer-bottom {
    padding: 20px 0;
    text-align: center;
    font-size: 13px;
    opacity: 0.5;
}

/* ========== Back to Top ========== */
.back-top {
    position: fixed;
    right: 30px;
    bottom: 90px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    border: none;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
}

.back-top.show {
    opacity: 1;
    visibility: visible;
}

.back-top:hover {
    background: var(--accent);
    transform: translateY(-3px);
}

/* ========== Floating Contact ========== */
.float-contact {
    position: fixed;
    right: 30px;
    bottom: 150px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 999;
}

.float-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: white;
    transition: var(--transition);
    position: relative;
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
}

.float-btn.whatsapp { background: #25D366; }
.float-btn.phone { background: var(--primary); }
.float-btn.email { background: var(--accent); }

.float-btn:hover {
    transform: translateY(-4px) scale(1.05);
}

.float-btn .tooltip {
    position: absolute;
    right: 60px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--dark);
    color: white;
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 13px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    pointer-events: none;
}

.float-btn:hover .tooltip {
    opacity: 1;
    visibility: visible;
    right: 65px;
}

/* ========== Fade In Animation ========== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
    .intro-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    .stat-item:nth-child(2)::after {
        display: none;
    }

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

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

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

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        gap: 0;
        max-height: 80vh;
        overflow-y: auto;
    }

    .nav-menu.show {
        display: flex;
    }

    .nav-menu > li {
        width: 100%;
    }

    .nav-menu > li > a {
        padding: 12px 16px;
        border-bottom: 1px solid var(--gray-border);
        border-radius: 0;
    }

    .dropdown {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        min-width: auto;
        padding: 0 0 0 20px;
    }

    .mobile-toggle {
        display: block;
    }

    .page-banner {
        height: 240px;
    }

    .page-banner h1 {
        font-size: 26px;
    }

    .section {
        padding: 50px 0;
    }

    .section-title {
        font-size: 24px;
    }

    .intro-card-list {
        grid-template-columns: 1fr;
    }

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

    .stat-item::after {
        display: none !important;
    }

    .stat-item .num {
        font-size: 36px;
    }

    /* Timeline mobile */
    .timeline::before {
        left: 20px;
    }

    .timeline-item,
    .timeline-item:nth-child(even) {
        width: 100%;
        left: 0;
        padding: 0 0 40px 50px;
    }

    .timeline-dot,
    .timeline-item:nth-child(even) .timeline-dot {
        left: 10px;
        right: auto;
    }

    .bases-grid,
    .culture-grid,
    .advantages-grid,
    .honors-grid {
        grid-template-columns: 1fr;
    }

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

    .float-contact {
        bottom: 100px;
        right: 15px;
    }

    .back-top {
        right: 15px;
        bottom: 60px;
    }
}