/* ===== 全局变量 ===== */
:root {
    --primary: #ff6b35;
    --primary-dark: #e85a2a;
    --secondary: #2d7ff9;
    --accent: #ffd93d;
    --dark: #1a1a2e;
    --gray: #6c757d;
    --light-gray: #f5f5f5;
    --white: #ffffff;
    --success: #28a745;
    --danger: #dc3545;
    --border: #e0e0e0;
    --radius: 12px;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
    --transition: all 0.3s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--dark);
    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: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section { padding: 80px 0; }
.bg-light { background: var(--light-gray); }

.section-header {
    text-align: center;
    margin-bottom: 50px;
}
.section-header h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--dark);
}
.section-header p {
    font-size: 1.1rem;
    color: var(--gray);
}

.text-center { text-align: center; }
.mt-4 { margin-top: 2rem; }

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    text-decoration: none;
}
.btn-lg { padding: 16px 36px; font-size: 1.1rem; }
.btn-primary {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}
.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}
.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: var(--white);
}
.btn-outline:hover {
    background: var(--white);
    color: var(--primary);
}
.btn-block { width: 100%; justify-content: center; }

/* ===== 顶部通知栏 ===== */
.top-bar {
    background: var(--dark);
    color: rgba(255,255,255,0.8);
    font-size: 0.85rem;
    padding: 8px 0;
}
.top-bar .container {
    display: flex;
    justify-content: flex-end;
    gap: 30px;
}
.top-bar i { margin-right: 5px; color: var(--primary); }

/* ===== 导航栏 ===== */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: var(--transition);
}
.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--primary);
}
.logo i { font-size: 1.8rem; }
.logo-light { color: var(--white); }

.nav {
    display: flex;
    align-items: center;
    gap: 28px;
}
.nav a {
    font-weight: 500;
    color: var(--dark);
    transition: var(--transition);
    position: relative;
}
.nav a:hover, .nav a.active { color: var(--primary); }
.nav a.active::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
}
.nav-auth { display: flex; gap: 10px; margin-left: 10px; }
.btn-login {
    padding: 8px 20px;
    border: 2px solid var(--primary);
    color: var(--primary) !important;
    border-radius: var(--radius);
}
.btn-register {
    padding: 8px 20px;
    background: var(--primary);
    color: var(--white) !important;
    border-radius: var(--radius);
}
.nav-user { display: flex; align-items: center; gap: 10px; margin-left: 10px; }
.nav-user .user-name { color: var(--primary); font-weight: 600; }
.nav-user a { color: var(--gray); }

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--dark);
    cursor: pointer;
}

/* ===== Hero ===== */
.hero {
    position: relative;
    min-height: 650px;
    display: flex;
    align-items: center;
    overflow: hidden;
}
.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    z-index: -1;
}
.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="60" height="60"><circle cx="30" cy="30" r="2" fill="rgba(255,255,255,0.06)"/></svg>') repeat;
}
.hero .container { position: relative; z-index: 1; }
.hero-content { color: var(--white); max-width: 650px; }
.hero h1 {
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
}
.hero h1 .highlight {
    color: var(--accent);
    background: linear-gradient(135deg, var(--accent), #ffb347);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero-sub {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 30px;
}
.hero-sub strong { color: var(--accent); font-size: 1.4em; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 50px; }
.hero-stats {
    display: flex;
    gap: 40px;
    flex-wrap: wrap;
}
.stat { text-align: center; }
.stat b {
    font-size: 2.2rem;
    font-weight: 800;
    display: block;
    line-height: 1;
}
.stat span { font-size: 1rem; opacity: 0.8; }
.stat p { font-size: 0.9rem; opacity: 0.7; margin-top: 5px; }

/* ===== 核心优势 ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.feature-card {
    background: var(--white);
    padding: 36px 28px;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}
.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}
.feature-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.8rem;
    color: var(--white);
}
.feature-card h3 { margin-bottom: 12px; font-size: 1.2rem; }
.feature-card p { color: var(--gray); font-size: 0.95rem; }

/* ===== 服务卡片 ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.service-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
}
.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}
.service-img {
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--white);
}
.service-body { padding: 20px; }
.service-body h4 { margin-bottom: 8px; font-size: 1.1rem; }
.service-body p { color: var(--gray); font-size: 0.9rem; margin-bottom: 12px; }
.service-price {
    color: var(--primary);
    font-weight: 700;
    font-size: 1.1rem;
}
.service-price small { font-size: 0.85rem; color: var(--gray); font-weight: 400; }

/* ===== 服务流程 ===== */
.process-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
}
.step {
    text-align: center;
    position: relative;
}
.step-num {
    width: 48px; height: 48px;
    border-radius: 50%;
    background: var(--primary);
    color: var(--white);
    font-size: 1.4rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
}
.step i { font-size: 1.8rem; color: var(--primary); margin-bottom: 8px; }
.step h4 { font-size: 1rem; margin-bottom: 4px; }
.step p { font-size: 0.85rem; color: var(--gray); }
.step-line {
    width: 60px;
    height: 3px;
    background: var(--primary);
    opacity: 0.3;
}

/* ===== 评价 ===== */
.reviews-slider {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.review-card {
    background: var(--white);
    padding: 28px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.stars { color: var(--accent); margin-bottom: 12px; }
.review-card p { font-style: italic; margin-bottom: 16px; }
.reviewer { font-size: 0.9rem; color: var(--gray); }
.reviewer b { color: var(--dark); }

/* ===== 页脚 ===== */
.footer {
    background: var(--dark);
    color: rgba(255,255,255,0.7);
    padding: 60px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 40px;
}
.footer-col h4 {
    color: var(--white);
    margin-bottom: 20px;
    font-size: 1.1rem;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a:hover { color: var(--primary); }
.footer-col p { margin-top: 15px; font-size: 0.9rem; }
.social-links { display: flex; gap: 12px; margin-top: 20px; }
.social-links a {
    width: 40px; height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}
.social-links a:hover { background: var(--primary); }
.contact-info li { display: flex; align-items: center; gap: 10px; }
.contact-info i { color: var(--primary); width: 18px; }

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 20px 0;
    text-align: center;
    font-size: 0.85rem;
}
.footer-bottom a { color: var(--primary); }

/* ===== 页面Banner ===== */
.page-banner {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    color: var(--white);
    padding: 120px 0 60px;
    text-align: center;
}
.page-banner h1 { font-size: 2.5rem; margin-bottom: 10px; }
.page-banner p { opacity: 0.85; font-size: 1.1rem; }

/* ===== 面包屑 ===== */
.breadcrumb {
    background: var(--light-gray);
    padding: 12px 0;
    font-size: 0.9rem;
}
.breadcrumb a { color: var(--primary); }
.breadcrumb span { margin: 0 8px; color: var(--gray); }

/* ===== 表单 ===== */
.form-container {
    max-width: 500px;
    margin: 60px auto;
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
}
.form-container h2 { text-align: center; margin-bottom: 30px; }
.form-group { margin-bottom: 20px; }
.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 0.95rem;
}
.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
}
.form-control:focus {
    outline: none;
    border-color: var(--primary);
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
textarea.form-control { resize: vertical; min-height: 100px; }

/* ===== 提示信息 ===== */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    font-size: 0.9rem;
}
.alert-success { background: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.alert-danger { background: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }

/* ===== 分类标签 ===== */
.category-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 40px;
}
.category-tab {
    padding: 10px 24px;
    border: 2px solid var(--border);
    border-radius: 30px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    background: var(--white);
}
.category-tab:hover, .category-tab.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

/* ===== 服务详情弹窗 ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: 20px;
}
.modal-overlay.active { display: flex; }
.modal {
    background: var(--white);
    border-radius: var(--radius);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.3s ease;
}
@keyframes slideUp { from { transform: translateY(30px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.modal-header {
    padding: 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.modal-header h3 { font-size: 1.3rem; }
.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray);
}
.modal-body { padding: 24px; }
.modal-footer {
    padding: 20px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 12px;
}
.service-detail-icon {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 16px;
    width: 100px;
    height: 100px;
    line-height: 100px;
    border-radius: 50%;
    margin: 0 auto 20px;
    color: var(--white);
}
.service-features { margin: 20px 0; }
.service-features li {
    padding: 8px 0;
    border-bottom: 1px dashed var(--border);
    display: flex;
    align-items: center;
    gap: 10px;
}
.service-features li i { color: var(--success); }

/* ===== 关于我们 ===== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}
.about-text h2 { font-size: 2rem; margin-bottom: 20px; }
.about-text p { color: var(--gray); margin-bottom: 16px; font-size: 1.05rem; }
.about-info {
    background: var(--white);
    padding: 36px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.about-info .info-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
}
.about-info .info-item:last-child { margin-bottom: 0; }
.about-info .info-icon {
    width: 48px; height: 48px;
    border-radius: 50%;
    background: var(--primary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}
.about-info h4 { margin-bottom: 4px; }
.about-info p { color: var(--gray); font-size: 0.9rem; }

/* ===== 联系我们 ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}
.contact-info-card {
    background: var(--white);
    padding: 36px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.contact-info-card .info-item {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}
.contact-info-card .info-item:last-child { border: none; margin: 0; padding: 0; }
.contact-info-card .info-icon {
    width: 50px; height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}
.contact-form-card {
    background: var(--white);
    padding: 36px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

/* ===== 预约页 ===== */
.booking-steps {
    display: flex;
    justify-content: center;
    margin-bottom: 40px;
}
.booking-step {
    display: flex;
    align-items: center;
    gap: 10px;
}
.booking-step .step-circle {
    width: 40px; height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    background: var(--light-gray);
    color: var(--gray);
    transition: var(--transition);
}
.booking-step.active .step-circle {
    background: var(--primary);
    color: var(--white);
}
.booking-step.completed .step-circle {
    background: var(--success);
    color: var(--white);
}
.step-connector {
    width: 50px;
    height: 3px;
    background: var(--border);
    margin: 0 5px;
}
.step-connector.completed { background: var(--success); }

.service-select-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 30px;
}
.service-select-card {
    border: 2px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}
.service-select-card:hover { border-color: var(--primary); }
.service-select-card.selected {
    border-color: var(--primary);
    background: rgba(255,107,53,0.05);
}
.service-select-card .icon { font-size: 2rem; margin-bottom: 10px; }
.service-select-card h5 { margin-bottom: 6px; }
.service-select-card .price { color: var(--primary); font-weight: 700; }

/* ===== 订单列表 ===== */
.orders-list { max-width: 800px; margin: 40px auto; }
.order-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 16px;
    box-shadow: var(--shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}
.order-status {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}
.status-pending { background: #fff3cd; color: #856404; }
.status-confirmed { background: #d4edda; color: #155724; }
.status-completed { background: #d1ecf1; color: #0c5460; }
.status-cancelled { background: #f8d7da; color: #721c24; }

/* ===== 浮动客服 ===== */
.float-actions {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.float-btn {
    width: 56px; height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--white);
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    border: none;
}
.float-btn:hover { transform: scale(1.1); }
.float-phone { background: var(--success); }
.float-top { background: var(--primary); display: none; }

/* ===== 动画 ===== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
.animate-up { animation: fadeInUp 0.6s ease forwards; }

/* ===== 响应式 ===== */
@media (max-width: 992px) {
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .reviews-slider { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .about-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .service-select-grid { grid-template-columns: repeat(2, 1fr); }
    .hero h1 { font-size: 2.4rem; }
}

@media (max-width: 768px) {
    .top-bar { display: none; }
    .menu-toggle { display: block; }
    .nav {
        position: fixed;
        top: 72px;
        left: -100%;
        width: 80%;
        height: calc(100vh - 72px);
        background: var(--white);
        flex-direction: column;
        align-items: flex-start;
        padding: 30px 20px;
        box-shadow: var(--shadow-lg);
        transition: var(--transition);
        overflow-y: auto;
    }
    .nav.active { left: 0; }
    .nav a { width: 100%; padding: 12px 0; border-bottom: 1px solid var(--border); }
    .nav-auth { width: 100%; flex-direction: column; margin-top: 10px; }
    .nav-user { width: 100%; flex-direction: column; align-items: flex-start; margin-top: 10px; }
    
    .section { padding: 50px 0; }
    .section-header h2 { font-size: 1.6rem; }
    .hero { min-height: 500px; padding: 40px 0; }
    .hero h1 { font-size: 1.8rem; }
    .hero-sub { font-size: 1rem; }
    .hero-stats { gap: 20px; }
    .stat b { font-size: 1.6rem; }
    
    .features-grid { grid-template-columns: 1fr; }
    .services-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
    
    .form-row { grid-template-columns: 1fr; }
    .service-select-grid { grid-template-columns: 1fr; }
    
    .process-steps { flex-direction: column; }
    .step-line { width: 3px; height: 30px; }
    
    .booking-steps { flex-wrap: wrap; }
    .step-connector { width: 30px; }
    
    .page-banner { padding: 100px 0 40px; }
    .page-banner h1 { font-size: 1.8rem; }
    
    .order-card { flex-direction: column; align-items: flex-start; }
    
    .float-actions { right: 10px; bottom: 10px; }
    .float-btn { width: 48px; height: 48px; font-size: 1.2rem; }
}