/* ============================================
   千川就搬图 - 全局样式
   配色：深蓝(#1a1a2e) + 金色(#c9a96e) + 白色
   ============================================ */

/* ---- CSS变量 ---- */
:root {
    --primary: #1a1a2e;
    --primary-light: #16213e;
    --primary-mid: #0f3460;
    --accent: #c9a96e;
    --accent-hover: #d4b87a;
    --accent-dark: #b89550;
    --white: #ffffff;
    --gray-50: #f8f9fa;
    --gray-100: #f0f0f0;
    --gray-200: #e0e0e0;
    --gray-300: #cccccc;
    --gray-500: #999999;
    --gray-700: #666666;
    --gray-900: #333333;
    --danger: #e74c3c;
    --success: #27ae60;
    --warning: #f39c12;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --shadow: 0 4px 24px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
    --transition: all 0.3s ease;
    --max-width: 1200px;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

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

body {
    font-family: var(--font-family);
    color: var(--gray-900);
    background: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

ul { list-style: none; }

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

/* ---- 容器 ---- */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* ---- 按钮 ---- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    line-height: 1.4;
}

.btn:active { transform: scale(0.97); }

.btn-primary {
    background: var(--accent);
    color: var(--primary);
}
.btn-primary:hover {
    background: var(--accent-hover);
    box-shadow: 0 4px 16px rgba(201,169,110,0.4);
}

.btn-outline {
    background: transparent;
    color: var(--accent);
    border: 2px solid var(--accent);
}
.btn-outline:hover {
    background: var(--accent);
    color: var(--primary);
}

.btn-dark {
    background: var(--primary);
    color: var(--white);
}
.btn-dark:hover {
    background: var(--primary-light);
}

.btn-lg {
    padding: 16px 40px;
    font-size: 1.1rem;
    border-radius: var(--border-radius);
}

.btn-block {
    width: 100%;
}

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

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 2.2rem;
    color: var(--primary);
    margin-bottom: 12px;
}

.section-title p {
    font-size: 1.1rem;
    color: var(--gray-700);
    max-width: 600px;
    margin: 0 auto;
}

/* ---- 导航栏 ---- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(26,26,46,0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 1000;
    transition: var(--transition);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.navbar .logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--accent);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 1px;
}
.navbar .logo img { height: 36px; }
.navbar .logo i { font-size: 1.8rem; }

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    color: rgba(255,255,255,0.8);
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
    padding: 4px 0;
}
.nav-links a:hover,
.nav-links a.active {
    color: var(--accent);
}
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition);
}
.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-links .btn {
    padding: 8px 20px;
    font-size: 0.9rem;
}

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px;
}
.hamburger span {
    display: block;
    width: 26px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}
.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.hamburger.active span:nth-child(2) {
    opacity: 0;
}
.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ---- Hero ---- */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 50%, var(--primary-mid) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(201,169,110,0.08) 0%, transparent 70%);
    border-radius: 50%;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(201,169,110,0.05) 0%, transparent 70%);
    border-radius: 50%;
}

.hero .container {
    display: flex;
    align-items: center;
    gap: 60px;
    position: relative;
    z-index: 1;
}

.hero-content {
    flex: 1;
}

.hero-content h1 {
    font-size: 3.2rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-content h1 span {
    color: var(--accent);
}

.hero-content p {
    font-size: 1.15rem;
    color: rgba(255,255,255,0.7);
    margin-bottom: 36px;
    line-height: 1.8;
    max-width: 520px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-screenshot {
    width: 100%;
    max-width: 520px;
    background: rgba(255,255,255,0.06);
    border-radius: var(--border-radius);
    padding: 20px;
    border: 1px solid rgba(255,255,255,0.1);
    backdrop-filter: blur(4px);
}

.hero-screenshot .mock-ui {
    width: 100%;
    aspect-ratio: 16/10;
    background: linear-gradient(135deg, rgba(201,169,110,0.15), rgba(26,26,46,0.3));
    border-radius: var(--border-radius-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    color: var(--accent);
}

.hero-screenshot .mock-ui i {
    font-size: 4rem;
    opacity: 0.8;
}

.hero-screenshot .mock-ui .mock-bar {
    width: 70%;
    height: 8px;
    background: rgba(201,169,110,0.2);
    border-radius: 4px;
}
.hero-screenshot .mock-ui .mock-bar:nth-child(3) { width: 55%; }
.hero-screenshot .mock-ui .mock-bar:nth-child(4) { width: 40%; }

/* ---- 功能卡片 ---- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 36px 28px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-100);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
}

.feature-card .icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-mid));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2rem;
    color: var(--accent);
}

.feature-card h3 {
    font-size: 1.2rem;
    color: var(--primary);
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--gray-700);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ---- 支持平台 ---- */
.platforms {
    background: var(--gray-50);
}

.platforms-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 40px;
}

.platform-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--gray-700);
    font-weight: 500;
    transition: var(--transition);
}
.platform-item:hover {
    color: var(--accent);
    transform: translateY(-4px);
}

.platform-item i {
    font-size: 2.8rem;
    color: var(--primary);
    transition: var(--transition);
}
.platform-item:hover i {
    color: var(--accent);
}

/* ---- 统计数字 ---- */
.stats {
    background: var(--primary);
    color: var(--white);
}

.stats .container {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 40px;
}

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

.stat-item .number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 8px;
}

.stat-item .label {
    font-size: 1rem;
    color: rgba(255,255,255,0.7);
}

/* ---- 价格卡片 ---- */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    max-width: 800px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 40px 32px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 2px solid var(--gray-200);
    transition: var(--transition);
    position: relative;
}
.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.pricing-card.featured {
    border-color: var(--accent);
    transform: scale(1.05);
}
.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-4px);
}

.pricing-card .badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: var(--primary);
    padding: 6px 24px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
}

.pricing-card .plan-name {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 8px;
}

.pricing-card .price {
    font-size: 3rem;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 4px;
}

.pricing-card .price-sub {
    font-size: 0.95rem;
    color: var(--gray-500);
    margin-bottom: 24px;
}

.pricing-card .features-list {
    text-align: left;
    margin-bottom: 32px;
}

.pricing-card .features-list li {
    padding: 10px 0;
    border-bottom: 1px solid var(--gray-100);
    color: var(--gray-700);
    display: flex;
    align-items: center;
    gap: 10px;
}
.pricing-card .features-list li:last-child {
    border-bottom: none;
}
.pricing-card .features-list li i {
    color: var(--success);
    font-size: 0.9rem;
}

/* ---- Footer ---- */
.footer {
    background: var(--primary);
    color: rgba(255,255,255,0.7);
    padding: 60px 0 30px;
}

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

.footer-brand h3 {
    color: var(--accent);
    font-size: 1.3rem;
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 0.95rem;
    line-height: 1.8;
}

.footer-col h4 {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: 20px;
}

.footer-col a {
    display: block;
    color: rgba(255,255,255,0.6);
    padding: 6px 0;
    font-size: 0.9rem;
}
.footer-col a:hover {
    color: var(--accent);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding-top: 24px;
    text-align: center;
    font-size: 0.85rem;
}

/* ---- 卡片/表单通用 ---- */
.card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 40px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.form-group .input-wrapper {
    position: relative;
}

.form-group .input-wrapper i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-500);
    font-size: 1rem;
}

.form-group input {
    width: 100%;
    padding: 12px 16px 12px 42px;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
    background: var(--white);
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(201,169,110,0.15);
}

.form-group .error-text {
    color: var(--danger);
    font-size: 0.85rem;
    margin-top: 6px;
    display: none;
}

.form-group.error input {
    border-color: var(--danger);
}

.form-group.error .error-text {
    display: block;
}

/* ---- 通知Toast ---- */
.toast {
    position: fixed;
    top: 90px;
    right: 20px;
    padding: 16px 24px;
    border-radius: var(--border-radius-sm);
    color: var(--white);
    font-size: 0.95rem;
    font-weight: 500;
    z-index: 9999;
    opacity: 0;
    transform: translateY(-10px);
    transition: var(--transition);
    max-width: 360px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 10px;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
.toast.warning { background: var(--warning); }

/* ---- 页面标题 ---- */
.page-header {
    padding: 120px 0 40px;
    background: var(--primary);
    text-align: center;
    color: var(--white);
}

.page-header h1 {
    font-size: 2.4rem;
    margin-bottom: 10px;
}

.page-header p {
    color: rgba(255,255,255,0.7);
    font-size: 1.1rem;
}

/* ---- 登录/注册页 ---- */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    padding: 20px;
}

.auth-card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    padding: 48px 40px;
    width: 100%;
    max-width: 440px;
}

.auth-card .auth-logo {
    text-align: center;
    margin-bottom: 32px;
}

.auth-card .auth-logo h2 {
    color: var(--primary);
    font-size: 1.8rem;
}

.auth-card .auth-logo h2 i {
    color: var(--accent);
    margin-right: 8px;
}

.auth-card .auth-logo p {
    color: var(--gray-500);
    margin-top: 8px;
}

.auth-card .auth-footer {
    text-align: center;
    margin-top: 24px;
    color: var(--gray-500);
    font-size: 0.9rem;
}

.auth-card .auth-footer a {
    color: var(--accent);
    font-weight: 600;
}
.auth-card .auth-footer a:hover {
    text-decoration: underline;
}

/* ---- 下载页 ---- */
.download-section {
    padding: 80px 0;
    min-height: 60vh;
}

.download-card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 48px;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.download-card .download-icon {
    font-size: 4rem;
    color: var(--accent);
    margin-bottom: 24px;
}

.download-card h2 {
    color: var(--primary);
    margin-bottom: 8px;
}

.download-card .member-badge {
    display: inline-block;
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
}
.member-badge.active {
    background: rgba(39,174,96,0.1);
    color: var(--success);
}
.member-badge.expired {
    background: rgba(231,76,60,0.1);
    color: var(--danger);
}
.member-badge.none {
    background: rgba(153,153,153,0.1);
    color: var(--gray-500);
}

.download-btn-area {
    margin: 32px 0;
}

.download-btn-area .version-info {
    color: var(--gray-500);
    font-size: 0.85rem;
    margin-top: 8px;
}

.tutorial-section {
    max-width: 700px;
    margin: 40px auto 0;
}

.tutorial-section h3 {
    color: var(--primary);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.tutorial-steps {
    counter-reset: step;
}

.tutorial-step {
    display: flex;
    gap: 20px;
    padding: 20px 0;
    border-bottom: 1px solid var(--gray-100);
}

.tutorial-step:last-child {
    border-bottom: none;
}

.tutorial-step .step-num {
    width: 36px;
    height: 36px;
    min-width: 36px;
    border-radius: 50%;
    background: var(--accent);
    color: var(--primary);
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
}

.tutorial-step .step-content h4 {
    color: var(--primary);
    margin-bottom: 6px;
}

.tutorial-step .step-content p {
    color: var(--gray-700);
    font-size: 0.95rem;
}

/* ---- 后台管理 ---- */
.admin-page {
    min-height: 100vh;
    background: var(--gray-50);
}

.admin-layout {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 240px;
    background: var(--primary);
    padding: 24px 0;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.admin-sidebar .sidebar-logo {
    padding: 0 20px 24px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    color: var(--accent);
    font-size: 1.2rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.admin-sidebar .nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    color: rgba(255,255,255,0.7);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.95rem;
    border-left: 3px solid transparent;
}
.admin-sidebar .nav-item:hover,
.admin-sidebar .nav-item.active {
    color: var(--accent);
    background: rgba(201,169,110,0.08);
    border-left-color: var(--accent);
}

.admin-sidebar .nav-item.logout {
    margin-top: auto;
    border-top: 1px solid rgba(255,255,255,0.08);
    padding-top: 20px;
}

.admin-main {
    flex: 1;
    padding: 32px;
    overflow-y: auto;
}

.admin-main .page-title {
    font-size: 1.6rem;
    color: var(--primary);
    margin-bottom: 24px;
}

/* 统计卡片 */
.admin-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 24px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 16px;
}

.stat-card .stat-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}
.stat-card .stat-icon.blue { background: rgba(15,52,96,0.1); color: var(--primary-mid); }
.stat-card .stat-icon.gold { background: rgba(201,169,110,0.15); color: var(--accent); }
.stat-card .stat-icon.green { background: rgba(39,174,96,0.1); color: var(--success); }

.stat-card .stat-info h3 {
    font-size: 1.6rem;
    color: var(--primary);
    margin-bottom: 2px;
}

.stat-card .stat-info p {
    color: var(--gray-500);
    font-size: 0.85rem;
}

/* 表格 */
.admin-table {
    width: 100%;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    margin-bottom: 32px;
}

.admin-table .table-header {
    padding: 20px 24px;
    border-bottom: 2px solid var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.admin-table .table-header h3 {
    font-size: 1.1rem;
    color: var(--primary);
}

.admin-table table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th {
    padding: 14px 20px;
    text-align: left;
    font-size: 0.85rem;
    color: var(--gray-500);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
}

.admin-table td {
    padding: 14px 20px;
    font-size: 0.95rem;
    border-bottom: 1px solid var(--gray-100);
    color: var(--gray-900);
}

.admin-table tr:last-child td {
    border-bottom: none;
}

.admin-table tr:hover td {
    background: var(--gray-50);
}

.badge-vip {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
}
.badge-vip.monthly { background: rgba(201,169,110,0.15); color: var(--accent); }
.badge-vip.yearly { background: rgba(39,174,96,0.1); color: var(--success); }
.badge-vip.none { background: rgba(153,153,153,0.1); color: var(--gray-500); }

/* 表单卡片 */
.form-card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 28px;
    margin-bottom: 32px;
}

.form-card h3 {
    font-size: 1.1rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.form-card select,
.form-card input[type="text"] {
    padding: 10px 16px;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    width: auto;
}

.form-card select:focus,
.form-card input[type="text"]:focus {
    outline: none;
    border-color: var(--accent);
}

.form-card .form-row {
    display: flex;
    align-items: flex-end;
    gap: 16px;
    flex-wrap: wrap;
}

.form-card .form-row .form-group {
    margin-bottom: 0;
}

/* ---- 响应式 ---- */
@media (max-width: 1024px) {
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: var(--primary);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid rgba(255,255,255,0.08);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: var(--transition);
    }
    .nav-links.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    .hamburger { display: flex; }

    .hero .container { flex-direction: column; }
    .hero-content h1 { font-size: 2.2rem; }
    .hero { padding: 120px 0 60px; }

    .features-grid { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; }
    .pricing-card.featured { transform: none; }
    .pricing-card.featured:hover { transform: translateY(-4px); }

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

    .admin-sidebar { width: 60px; }
    .admin-sidebar .sidebar-logo span,
    .admin-sidebar .nav-item span { display: none; }
    .admin-sidebar .nav-item { justify-content: center; padding: 12px; }
    .admin-main { padding: 16px; }
    .admin-stats { grid-template-columns: 1fr; }

    .download-card { padding: 32px 20px; }
    .auth-card { padding: 32px 24px; }

    .section-title h2 { font-size: 1.8rem; }
    .stats .container { gap: 24px; }
    .stat-item .number { font-size: 2.2rem; }

    .admin-table { overflow-x: auto; }
    .admin-table table { min-width: 700px; }
}

@media (max-width: 480px) {
    .hero-content h1 { font-size: 1.8rem; }
    .hero-buttons { flex-direction: column; }
    .btn-lg { width: 100%; text-align: center; }
    .platforms-grid { gap: 24px; }
}