/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    text-decoration: none;
    list-style: none;
}

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-card-hover: rgba(255, 255, 255, 0.06);
    --accent: #4FC3F7;
    --accent-glow: rgba(79, 195, 247, 0.15);
    --accent-pink: #F06292;
    --text-primary: #f0f0f5;
    --text-secondary: #a0a0b0;
    --text-muted: #6a6a7a;
    --border: rgba(255, 255, 255, 0.08);
    --radius: 16px;
    --radius-sm: 8px;
    --font-cn: 'Noto Sans SC', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-en: 'Orbitron', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-cn);
    line-height: 1.7;
    min-height: 100vh;
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
}

/* ===== Loading Screen ===== */
#loading-screen {
    position: fixed;
    inset: 0;
    background: var(--bg-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.loading-content {
    text-align: center;
    color: #fff;
}

.loading-content h3 {
    font-family: var(--font-en);
    font-size: 48px;
    margin-bottom: 40px;
    background: linear-gradient(135deg, var(--accent), #81D4FA);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.loading-content p {
    font-size: 14px;
    margin-top: 40px;
    color: var(--text-muted);
    letter-spacing: 2px;
}

ul.loading-ul {
    position: relative;
    display: flex;
    justify-content: center;
    gap: 8px;
}

ul li.loading-li {
    list-style: none;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    animation: loadPulse 1.6s ease-in-out infinite;
}

@keyframes loadPulse {
    0%, 40%, 100% { transform: scale(0.3); opacity: 0.3; }
    20% { transform: scale(1); opacity: 1; }
}

ul li.loading-li:nth-child(1) { animation-delay: -1.4s; background: #ffff00; box-shadow: 0 0 20px rgba(255, 255, 0, 0.5); }
ul li.loading-li:nth-child(2) { animation-delay: -1.2s; background: #76FF03; box-shadow: 0 0 20px rgba(118, 255, 3, 0.5); }
ul li.loading-li:nth-child(3) { animation-delay: -1.0s; background: #F06292; box-shadow: 0 0 20px rgba(240, 98, 146, 0.5); }
ul li.loading-li:nth-child(4) { animation-delay: -0.8s; background: #4FC3F7; box-shadow: 0 0 20px rgba(79, 195, 247, 0.5); }
ul li.loading-li:nth-child(5) { animation-delay: -0.6s; background: #BA68C8; box-shadow: 0 0 20px rgba(186, 104, 200, 0.5); }
ul li.loading-li:nth-child(6) { animation-delay: -0.4s; background: #F57C00; box-shadow: 0 0 20px rgba(245, 124, 0, 0.5); }
ul li.loading-li:nth-child(7) { animation-delay: -0.2s; background: #673AB7; box-shadow: 0 0 20px rgba(103, 58, 183, 0.5); }

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 72px;
    background: transparent;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 60px;
    z-index: 1000;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    height: 60px;
    border-bottom: 1px solid var(--border);
}

.logo {
    font-family: var(--font-en);
    font-size: 22px;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 2px;
    transition: all 0.3s ease;
}

.logo-sub {
    font-family: var(--font-cn);
    font-size: 13px;
    font-weight: 400;
    color: var(--text-secondary);
    margin-left: 8px;
    letter-spacing: 1px;
}

.navbar.scrolled .logo { font-size: 20px; }

.logo:hover { color: #81D4FA; }

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

.nav-link {
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover { color: var(--text-primary); background: rgba(255, 255, 255, 0.05); }
.nav-link.active { color: var(--accent); }

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 16px;
    width: calc(100% - 32px);
    height: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
    border-radius: 1px;
}

.nav-link:hover::after,
.nav-link.active::after { transform: scaleX(1); }

.nav-item.dropdown { position: relative; }
.nav-item.dropdown:hover .dropdown-menu { display: block; }

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 180px;
    background: rgba(20, 20, 30, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    padding: 8px;
    display: none;
    z-index: 999;
}

.dropdown-link {
    display: block;
    color: var(--text-secondary);
    padding: 10px 14px;
    border-radius: 6px;
    font-size: 14px;
    transition: all 0.2s ease;
}

.dropdown-item:hover .dropdown-link {
    color: var(--text-primary);
    background: rgba(79, 195, 247, 0.1);
}

.contact-btn {
    background: var(--accent);
    color: var(--bg-primary);
    font-weight: 600;
    font-size: 13px;
    padding: 8px 22px;
    border-radius: 100px;
    transition: all 0.3s ease;
    letter-spacing: 0.5px;
}

.contact-btn:hover {
    background: #81D4FA;
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(79, 195, 247, 0.3);
}

/* ===== Mobile Menu ===== */
.hamburger {
    display: none;
    cursor: pointer;
    z-index: 1001;
}

.bar {
    width: 24px;
    height: 2px;
    background: var(--text-secondary);
    margin: 5px 0;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 24px;
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1002;
}

.mobile-menu.active { right: 0; }

.mobile-nav-link {
    color: var(--text-secondary);
    font-size: 16px;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.mobile-nav-link:hover,
.mobile-nav-link.active { color: var(--accent); }

.close-menu {
    position: absolute;
    top: 24px;
    right: 24px;
    cursor: pointer;
}

.close-bar {
    width: 24px;
    height: 2px;
    background: var(--text-secondary);
    margin: 5px 0;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.close-bar:first-child { transform: rotate(45deg) translate(3px, 3px); }
.close-bar:last-child { transform: rotate(-45deg) translate(1px, -1px); }

.mobile-nav-item.mobile-dropdown { position: relative; width: 100%; }

.mobile-dropdown-toggle {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.mobile-dropdown-menu {
    display: none;
    padding: 8px 0 0 20px;
    width: 100%;
}

.mobile-dropdown-link {
    color: var(--text-muted);
    font-size: 14px;
    transition: color 0.3s ease;
}

.mobile-dropdown-link:hover { color: var(--accent); }

.mobile-dropdown.active .mobile-dropdown-toggle::after { content: '▴'; }
.mobile-dropdown-toggle::after { content: '▾'; margin-left: 10px; }

/* ===== Hero Section ===== */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px 60px;
    text-align: center;
    overflow: hidden;
}

.hero-bg-glow {
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 600px;
    background: radial-gradient(ellipse, var(--accent-glow), transparent 70%);
    pointer-events: none;
    opacity: 0.6;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-family: var(--font-en);
    font-size: clamp(4rem, 10vw, 8rem);
    font-weight: 700;
    letter-spacing: 12px;
    background: linear-gradient(135deg, var(--accent) 0%, #E1F5FE 40%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 16px;
}

.hero-subtitle {
    font-family: var(--font-en);
    font-size: clamp(0.8rem, 2vw, 1.1rem);
    font-weight: 400;
    color: var(--text-muted);
    letter-spacing: 8px;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.hero-motto {
    font-size: clamp(1rem, 2vw, 1.3rem);
    color: var(--text-secondary);
    font-weight: 300;
    margin-bottom: 40px;
    letter-spacing: 4px;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 36px;
    background: transparent;
    color: var(--accent);
    border: 1px solid rgba(79, 195, 247, 0.3);
    border-radius: 100px;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 1px;
    transition: all 0.4s ease;
}

.hero-cta:hover {
    background: rgba(79, 195, 247, 0.1);
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(79, 195, 247, 0.2);
}

.hero-cta svg { transition: transform 0.3s ease; }
.hero-cta:hover svg { transform: translateX(4px); }

/* ===== Slider ===== */
.slider-section {
    margin-bottom: 0;
}

.dji-slider {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    z-index: 100;
}

.slider-track {
    display: flex;
    height: 100%;
    transition: transform 1.2s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.slider-slide {
    min-width: 100%;
    height: 100%;
    position: relative;
}

.slider-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 8s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.slider-slide.active img { transform: scale(1.07); }

.slide-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(10, 10, 15, 0.8) 0%,
        rgba(10, 10, 15, 0.5) 40%,
        rgba(10, 10, 15, 0.2) 100%
    );
    z-index: 1;
}

.slide-content {
    position: absolute;
    inset: 0;
    padding: 0 12%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: #fff;
    z-index: 2;
}

.slide-title {
    font-family: 'Noto Serif SC', 'Songti SC', 'STSong', serif;
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(-30px);
    transition: opacity 0.8s ease 0.3s, transform 0.8s ease 0.3s;
    letter-spacing: 8px;
    background: linear-gradient(
        135deg,
        #1a5276 0%,
        #4FC3F7 18%,
        #E1F5FE 28%,
        #ffffff 35%,
        #B3E5FC 42%,
        #4FC3F7 55%,
        #81D4FA 65%,
        #E1F5FE 72%,
        #ffffff 78%,
        #81D4FA 88%,
        #1a5276 100%
    );
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 2px 8px rgba(79, 195, 247, 0.4));
    animation: metallicShimmer 6s ease-in-out infinite;
}

@keyframes metallicShimmer {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.slide-subtitle {
    font-family: 'Noto Serif SC', 'Songti SC', 'STSong', serif;
    font-size: clamp(1rem, 2vw, 1.5rem);
    margin-bottom: 36px;
    opacity: 0;
    transform: translateY(-30px);
    transition: opacity 0.8s ease 0.6s, transform 0.8s ease 0.6s;
    letter-spacing: 4px;
    font-weight: 500;
    background: linear-gradient(
        135deg,
        #81D4FA 0%,
        #E1F5FE 30%,
        #ffffff 50%,
        #E1F5FE 70%,
        #81D4FA 100%
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 1px 4px rgba(79, 195, 247, 0.25));
}

.slider-slide.active .slide-title,
.slider-slide.active .slide-subtitle {
    opacity: 1;
    transform: translateY(0);
}

.slider-nav {
    position: absolute;
    top: 50%;
    width: 100%;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    transform: translateY(-50%);
    z-index: 3;
    pointer-events: none;
}

.nav-btn {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: auto;
}

.nav-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: scale(1.05);
}

.slider-dots {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 3;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.25);
    cursor: pointer;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.dot.active {
    width: 32px;
    background: white;
    border-radius: 4px;
}

/* ===== Section Layout ===== */
.section {
    padding: 100px 0;
    position: relative;
}

.section-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    font-family: var(--font-en);
    font-size: 12px;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: 4px;
    text-transform: uppercase;
    display: block;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
    letter-spacing: 2px;
}

.section-divider {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), transparent);
    margin: 0 auto;
    border-radius: 2px;
}

/* ===== Department Cards ===== */
.dept-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.dept-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px 28px 32px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.dept-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.dept-card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(79, 195, 247, 0.15);
    transform: translateY(-4px);
}

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

.dept-card-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, var(--accent-glow), transparent 60%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.dept-card:hover .dept-card-glow { opacity: 0.5; }

.dept-icon {
    width: 56px;
    height: 56px;
    background: rgba(79, 195, 247, 0.08);
    border: 1px solid rgba(79, 195, 247, 0.15);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: var(--accent);
    transition: all 0.3s ease;
}

.dept-card:hover .dept-icon {
    background: rgba(79, 195, 247, 0.12);
    transform: scale(1.05);
}

.dept-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.dept-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===== Rules Sections ===== */
.rules-container {
    max-width: 900px;
    margin: 0 auto;
}

.rules-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px 48px;
    position: relative;
    overflow: hidden;
}

.rules-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: linear-gradient(to bottom, var(--accent), transparent);
    border-radius: 2px;
}

.rules-card.weird::before {
    background: linear-gradient(to bottom, var(--accent-pink), transparent);
}

.rules-list {
    list-style: none;
    counter-reset: rule-counter;
}

.rules-list li {
    counter-increment: rule-counter;
    position: relative;
    padding: 12px 0 12px 48px;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    transition: color 0.3s ease;
}

.rules-list li:last-child { border-bottom: none; }
.rules-list li:hover { color: var(--text-primary); }

.rules-list li::before {
    content: counter(rule-counter);
    position: absolute;
    left: 0;
    top: 12px;
    width: 28px;
    height: 28px;
    background: rgba(79, 195, 247, 0.08);
    border: 1px solid rgba(79, 195, 247, 0.15);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-en);
    font-size: 11px;
    font-weight: 600;
    color: var(--accent);
    line-height: 28px;
    text-align: center;
}

.rules-card.weird .rules-list li::before {
    background: rgba(240, 98, 146, 0.08);
    border-color: rgba(240, 98, 146, 0.15);
    color: var(--accent-pink);
}

/* ===== About Section ===== */
.about-block {
    display: flex;
    align-items: center;
    gap: 60px;
    margin-bottom: 80px;
}

.about-block:last-child { margin-bottom: 0; }

.about-block.reverse { flex-direction: row-reverse; }

.about-image {
    flex: 0 0 320px;
    position: relative;
}

.about-image img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: transform 0.4s ease;
}

.about-image:hover img { transform: scale(1.02); }

.about-image::after {
    content: '';
    position: absolute;
    inset: 8px;
    border: 1px solid rgba(79, 195, 247, 0.15);
    border-radius: var(--radius);
    z-index: -1;
    transform: translate(12px, 12px);
    transition: transform 0.4s ease;
}

.about-image:hover::after { transform: translate(8px, 8px); }

.about-text h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.about-facts {
    list-style: none;
}

.about-facts li {
    padding: 8px 0 8px 24px;
    color: var(--text-secondary);
    font-size: 15px;
    position: relative;
    line-height: 1.8;
}

.about-facts li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    transform: translateY(-50%);
}

.about-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-top: 20px;
    padding: 10px 24px;
    background: rgba(79, 195, 247, 0.06);
    border: 1px solid rgba(79, 195, 247, 0.15);
    border-radius: 100px;
    color: var(--accent);
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.about-link:hover {
    background: rgba(79, 195, 247, 0.12);
    transform: translateY(-1px);
}

/* Nova Profile */
.nova-profile {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.profile-row {
    display: flex;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.profile-row:last-child { border-bottom: none; }

.profile-label {
    flex: 0 0 80px;
    font-weight: 600;
    color: var(--accent);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding-top: 2px;
}

/* ===== Footer ===== */
.footer {
    margin-top: 40px;
    border-top: 1px solid var(--border);
    padding: 60px 0 40px;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    text-align: center;
}

.footer-brand {
    margin-bottom: 32px;
}

.footer-logo {
    font-family: var(--font-en);
    font-size: 28px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent), #81D4FA);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 4px;
}

.footer-slogan {
    font-family: var(--font-en);
    font-size: 11px;
    color: var(--text-muted);
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-top: 8px;
}

.footer-divider {
    width: 40px;
    height: 1px;
    background: var(--border);
    margin: 0 auto 32px;
}

.footer-bottom {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.footer-bottom p {
    font-size: 12px;
    color: var(--text-muted);
    letter-spacing: 0.5px;
}

.footer-icp {
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-icp img {
    height: 16px;
    opacity: 0.5;
}

.footer-icp span {
    font-size: 12px;
    color: var(--text-muted);
}

/* ===== Scroll Reveal ===== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    transition-delay: var(--delay, 0s);
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
    .navbar { padding: 0 30px; }
    .nav-menu { gap: 4px; }
    .hero-section { padding: 140px 30px 60px; }
    .section-inner { padding: 0 24px; }

    .about-block {
        flex-direction: column;
        gap: 32px;
    }
    .about-block.reverse { flex-direction: column; }
    .about-image { flex: none; width: 70%; max-width: 320px; }
}

@media (max-width: 768px) {
    .hamburger { display: block; }
    .nav-menu, .navbar > .contact-btn { display: none; }
    .navbar { padding: 0 24px; }

    .hero-title { letter-spacing: 6px; }
    .hero-subtitle { letter-spacing: 4px; }
    .hero-motto { letter-spacing: 2px; }

    .section { padding: 60px 0; }
    .section-header { margin-bottom: 40px; }

    .dept-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .rules-card { padding: 24px 20px; }
    .rules-list li { padding-left: 40px; font-size: 13px; }

    .about-image { width: 80%; }
    .about-text h3 { font-size: 1.2rem; }

    .profile-row { flex-direction: column; gap: 2px; }
    .profile-label { flex: none; }
}

@media (max-width: 480px) {
    .hero-section { padding: 120px 20px 40px; }
    .hero-cta { padding: 12px 28px; font-size: 13px; }
    .section-inner { padding: 0 16px; }
    .about-image { width: 100%; }
}