/* ===== CSS Variables ===== */
:root {
    --primary: #FF6B35;
    --primary-dark: #E55A2B;
    --primary-light: #FFF0E8;
    --secondary: #FFD700;
    --accent: #00B894;
    --text-dark: #2D3436;
    --text-gray: #636E72;
    --text-light: #B2BEC3;
    --bg-white: #FFFFFF;
    --bg-light: #F8F9FA;
    --bg-gray: #F1F2F6;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.15);
    --radius: 16px;
    --radius-sm: 8px;
    --radius-lg: 24px;
    --transition: all 0.3s ease;
    --max-width: 1200px;
    --header-height: 72px;
}

/* ===== Reset & Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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-dark);
    line-height: 1.6;
    background: var(--bg-white);
    -webkit-font-smoothing: antialiased;
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--bg-white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
    z-index: 1000;
    display: flex;
    align-items: center;
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    cursor: pointer;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

.logo span {
    color: var(--text-dark);
}

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

.nav a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-gray);
    transition: var(--transition);
    position: relative;
    padding: 4px 0;
    cursor: pointer;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav a:hover,
.nav a.active {
    color: var(--primary);
}

.nav a:hover::after,
.nav a.active::after {
    width: 100%;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.mobile-toggle span {
    width: 24px;
    height: 2.5px;
    background: var(--text-dark);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
    padding: calc(var(--header-height) + 60px) 0 80px;
    background: linear-gradient(135deg, var(--primary-light) 0%, #FFF5E6 50%, #E8F8F5 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 107, 53, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

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

.hero-content h1 {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 16px;
}

.hero-content h1 .highlight {
    color: var(--primary);
    position: relative;
}

.hero-content h1 .highlight::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 0;
    right: 0;
    height: 8px;
    background: rgba(255, 107, 53, 0.2);
    border-radius: 4px;
}

.hero-content p {
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-bottom: 32px;
    max-width: 480px;
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin-top: 40px;
}

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

.hero-stats .stat-num {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary);
}

.hero-stats .stat-label {
    font-size: 0.85rem;
    color: var(--text-gray);
    margin-top: 4px;
}

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

.hero-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-hover);
    width: 100%;
    max-width: 420px;
}

.hero-card h3 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

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

.deal-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 16px;
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    cursor: pointer;
}

.deal-item:hover {
    transform: translateX(4px);
    background: var(--primary-light);
}

.deal-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.deal-icon.phone { background: #E8F4FD; }
.deal-icon.electric { background: #FFF3E0; }
.deal-icon.water { background: #E0F7FA; }
.deal-icon.food { background: #FCE4EC; }

.deal-info {
    flex: 1;
}

.deal-info .deal-name {
    font-size: 0.9rem;
    font-weight: 600;
}

.deal-info .deal-desc {
    font-size: 0.8rem;
    color: var(--text-gray);
}

.deal-tag {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
    background: var(--primary);
    color: white;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

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

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

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

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

.btn-sm {
    padding: 8px 18px;
    font-size: 0.85rem;
}

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

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 12px;
}

.section-header p {
    color: var(--text-gray);
    font-size: 1.05rem;
    max-width: 600px;
    margin: 0 auto;
}

.section-header .tag {
    display: inline-block;
    padding: 4px 16px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 12px;
}

/* ===== Categories ===== */
.categories {
    background: var(--bg-light);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
}

.category-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 28px 16px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
}

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

.category-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 14px;
    font-size: 1.5rem;
}

.category-card:nth-child(1) .category-icon { background: #E8F4FD; }
.category-card:nth-child(2) .category-icon { background: #FFF3E0; }
.category-card:nth-child(3) .category-icon { background: #E0F7FA; }
.category-card:nth-child(4) .category-icon { background: #FCE4EC; }
.category-card:nth-child(5) .category-icon { background: #E8F5E9; }
.category-card:nth-child(6) .category-icon { background: #F3E5F5; }

.category-card h3 {
    font-size: 1rem;
    margin-bottom: 6px;
}

.category-card p {
    font-size: 0.82rem;
    color: var(--text-gray);
}

/* ===== Services Grid ===== */
.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid rgba(0,0,0,0.04);
}

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

.service-banner {
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    position: relative;
}

.service-banner .discount-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: var(--primary);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
}

.service-banner.phone-bg { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); }
.service-banner.electric-bg { background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%); }
.service-banner.water-bg { background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%); }
.service-banner.gas-bg { background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%); }
.service-banner.food-bg { background: linear-gradient(135deg, #fa709a 0%, #fee140 100%); }
.service-banner.clean-bg { background: linear-gradient(135deg, #a18cd1 0%, #fbc2eb 100%); }

.service-body {
    padding: 20px;
}

.service-body h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.service-body p {
    font-size: 0.88rem;
    color: var(--text-gray);
    margin-bottom: 14px;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    display: -webkit-box;
}

.service-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 14px;
    border-top: 1px solid var(--bg-gray);
}

.service-price {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary);
}

.service-price .original {
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--text-light);
    text-decoration: line-through;
    margin-left: 6px;
}

.saving-info {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
    padding: 4px 12px;
    background: #E8F8F5;
    border-radius: 20px;
}

/* ===== Features ===== */
.features {
    background: var(--bg-light);
}

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

.feature-item {
    text-align: center;
    padding: 32px 20px;
}

.feature-item .feature-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 1.5rem;
}

.feature-item h3 {
    font-size: 1.05rem;
    margin-bottom: 8px;
}

.feature-item p {
    font-size: 0.88rem;
    color: var(--text-gray);
}

/* ===== Deals / Promotions ===== */
.deals-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.deal-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--bg-light);
    border-radius: var(--radius);
    transition: var(--transition);
    cursor: pointer;
}

.deal-card:hover {
    background: var(--primary-light);
    transform: translateX(4px);
}

.deal-card .deal-card-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.deal-card:nth-child(1) .deal-card-icon { background: #E8F4FD; }
.deal-card:nth-child(2) .deal-card-icon { background: #FFF3E0; }
.deal-card:nth-child(3) .deal-card-icon { background: #E0F7FA; }
.deal-card:nth-child(4) .deal-card-icon { background: #FCE4EC; }

.deal-card .deal-card-info {
    flex: 1;
}

.deal-card .deal-card-title {
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 4px;
}

.deal-card .deal-card-desc {
    font-size: 0.8rem;
    color: var(--text-gray);
}

.deal-card .deal-card-tag {
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    background: var(--primary);
    color: white;
    flex-shrink: 0;
}

/* ===== Page Content (for tab pages) ===== */
.page {
    display: none;
    padding-top: var(--header-height);
}

.page.active {
    display: block;
}

.page-banner {
    padding: 60px 0 40px;
    text-align: center;
    background: linear-gradient(135deg, var(--primary-light), #FFF5E6);
}

.page-banner h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 8px;
}

.page-banner p {
    color: var(--text-gray);
    font-size: 1rem;
}

/* ===== Phone Page ===== */
.operator-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.operator-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 32px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
}

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

.operator-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 1.8rem;
}

.operator-card:nth-child(1) .operator-icon { background: #E8F4FD; color: #1890FF; }
.operator-card:nth-child(2) .operator-icon { background: #FFF3E0; color: #FF6B35; }
.operator-card:nth-child(3) .operator-icon { background: #E0F7FA; color: #00B894; }

.operator-card h3 {
    font-size: 1.15rem;
    margin-bottom: 6px;
}

.operator-card .discount-info {
    color: var(--primary);
    font-weight: 700;
    font-size: 1.2rem;
    margin: 12px 0;
}

.operator-card p {
    font-size: 0.85rem;
    color: var(--text-gray);
    margin-bottom: 16px;
}

/* ===== Housekeeping Page ===== */
.clean-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.clean-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
}

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

.clean-image {
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
}

.clean-card:nth-child(1) .clean-image { background: linear-gradient(135deg, #a18cd1, #fbc2eb); }
.clean-card:nth-child(2) .clean-image { background: linear-gradient(135deg, #ffecd2, #fcb69f); }
.clean-card:nth-child(3) .clean-image { background: linear-gradient(135deg, #89f7fe, #66a6ff); }
.clean-card:nth-child(4) .clean-image { background: linear-gradient(135deg, #fddb92, #d1fdff); }
.clean-card:nth-child(5) .clean-image { background: linear-gradient(135deg, #c1f1c6, #6dd5a0); }
.clean-card:nth-child(6) .clean-image { background: linear-gradient(135deg, #f6d365, #fda085); }

.clean-body {
    padding: 20px;
}

.clean-body h3 {
    font-size: 1.05rem;
    margin-bottom: 6px;
}

.clean-body p {
    font-size: 0.85rem;
    color: var(--text-gray);
    margin-bottom: 12px;
}

.clean-body .price {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary);
}

.clean-body .price .unit {
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--text-gray);
}

/* ===== Activities Page ===== */
.activity-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 40px;
}

.activity-item {
    display: flex;
    gap: 24px;
    background: var(--bg-white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
}

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

.activity-date {
    width: 100px;
    background: var(--primary);
    color: white;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.activity-date .day {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
}

.activity-date .month {
    font-size: 0.85rem;
    opacity: 0.9;
    margin-top: 4px;
}

.activity-info {
    padding: 20px 20px 20px 0;
    flex: 1;
}

.activity-info h3 {
    font-size: 1.05rem;
    margin-bottom: 6px;
}

.activity-info p {
    font-size: 0.85rem;
    color: var(--text-gray);
}

.activity-info .activity-tag {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 4px;
    font-size: 0.78rem;
    font-weight: 600;
    margin-top: 8px;
}

.activity-tag.ongoing {
    background: #E8F5E9;
    color: #2E7D32;
}

.activity-tag.upcoming {
    background: #FFF3E0;
    color: #E65100;
}

/* ===== About Page ===== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-top: 40px;
}

.about-text h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.about-text p {
    color: var(--text-gray);
    margin-bottom: 16px;
    line-height: 1.8;
}

.about-values {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.value-item {
    padding: 20px;
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    text-align: center;
}

.value-item .value-icon {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.value-item h4 {
    font-size: 0.95rem;
    margin-bottom: 4px;
}

.value-item p {
    font-size: 0.82rem;
    color: var(--text-gray);
}

/* ===== Contact ===== */
.contact-section {
    background: var(--bg-light);
}

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

.contact-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 28px;
    text-align: center;
    box-shadow: var(--shadow);
}

.contact-card .contact-icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

.contact-card h3 {
    font-size: 1rem;
    margin-bottom: 8px;
}

.contact-card p {
    font-size: 0.88rem;
    color: var(--text-gray);
}

/* ===== FAQ ===== */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--bg-gray);
    padding: 20px 0;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
}

.faq-question .arrow {
    transition: var(--transition);
    font-size: 0.85rem;
    color: var(--text-gray);
}

.faq-item.active .faq-question .arrow {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    color: var(--text-gray);
    font-size: 0.9rem;
    line-height: 1.7;
}

.faq-item.active .faq-answer {
    max-height: 200px;
    padding-top: 12px;
}

/* ===== Tabs ===== */
.tab-nav {
    display: flex;
    gap: 32px;
    justify-content: center;
    margin-bottom: 40px;
    border-bottom: 2px solid var(--bg-gray);
    padding-bottom: 0;
}

.tab-nav .tab-btn {
    padding: 12px 4px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-gray);
    background: none;
    border: none;
    cursor: pointer;
    position: relative;
    transition: var(--transition);
}

.tab-nav .tab-btn::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.tab-nav .tab-btn.active {
    color: var(--primary);
}

.tab-nav .tab-btn.active::after {
    width: 100%;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* ===== Footer ===== */
.footer {
    background: var(--text-dark);
    color: rgba(255,255,255,0.8);
    padding: 60px 0 30px;
}

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

.footer-brand h3 {
    color: white;
    font-size: 1.3rem;
    margin-bottom: 12px;
}

.footer-brand p {
    font-size: 0.88rem;
    margin-bottom: 16px;
    max-width: 300px;
}

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

.footer-social a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    font-size: 0.9rem;
}

.footer-social a:hover {
    background: var(--primary);
}

.footer h4 {
    color: white;
    font-size: 1rem;
    margin-bottom: 16px;
}

.footer-links a {
    display: block;
    padding: 6px 0;
    font-size: 0.88rem;
    color: rgba(255,255,255,0.6);
    transition: var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 24px;
    text-align: center;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.4);
}

/* ===== Scroll to Top ===== */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    z-index: 999;
}

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

.scroll-top:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .category-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--bg-white);
        flex-direction: column;
        padding: 16px 20px;
        gap: 12px;
        box-shadow: 0 4px 10px rgba(0,0,0,0.06);
    }

    .nav.open {
        display: flex;
    }

    .mobile-toggle {
        display: flex;
    }

    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-stats {
        gap: 24px;
    }

    .hero-stats .stat-num {
        font-size: 1.4rem;
    }

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

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

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

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

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

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

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

    .about-content {
        grid-template-columns: 1fr;
    }

    .about-values {
        grid-template-columns: 1fr;
    }

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

    .section-header h2 {
        font-size: 1.5rem;
    }

    .activity-item {
        flex-direction: column;
    }

    .activity-date {
        width: 100%;
        flex-direction: row;
        gap: 8px;
        padding: 12px;
    }

    .activity-date .day {
        font-size: 1.2rem;
    }

    .activity-info {
        padding: 16px;
    }

    .tab-nav {
        gap: 16px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 0;
    }

    .tab-nav .tab-btn {
        font-size: 0.88rem;
        white-space: nowrap;
    }
}

@media (max-width: 480px) {
    .category-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-content h1 {
        font-size: 1.6rem;
    }

    .hero-stats {
        flex-wrap: wrap;
    }
}