/* ===== 基础样式重置 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 主色调 */
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    
    /* 辅助色 */
    --secondary-color: #10b981;
    --accent-color: #f59e0b;
    --danger-color: #ef4444;
    
    /* 中性色 */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* 渐变色 */
    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    --gradient-secondary: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --gradient-accent: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* 字体 */
    --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--gray-800);
    background-color: #fff;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== 顶部通知栏 ===== */
.top-notice {
    background: var(--gradient-accent);
    color: white;
    padding: 8px 0;
    font-size: 14px;
    position: relative;
}

.notice-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    text-align: center;
}

.notice-close {
    position: absolute;
    right: 20px;
    background: none;
    border: none;
    color: white;
    font-size: 18px;
    cursor: pointer;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.notice-close:hover {
    opacity: 1;
}

/* ===== 导航栏 ===== */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
    transition: all 0.3s ease;
}

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

.brand-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 45px;
    height: 45px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
}

.brand-text h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 2px;
}

.brand-text span {
    font-size: 12px;
    color: var(--gray-500);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 35px;
}

.nav-link {
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    font-size: 15px;
    transition: all 0.3s ease;
    position: relative;
    padding: 8px 0;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.hotline {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    font-weight: 600;
    font-size: 16px;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.mobile-toggle span {
    width: 25px;
    height: 3px;
    background: var(--gray-700);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ===== 按钮样式 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

.btn-large {
    padding: 16px 32px;
    font-size: 16px;
}

.btn-full {
    width: 100%;
}

.btn-select {
    background: var(--gray-50);
    color: var(--primary-color);
    border: 1px solid var(--gray-200);
}

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

/* ===== 首页横幅 ===== */
.hero {
    background: var(--gradient-primary);
    color: white;
    padding: 100px 0;
    position: relative;
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

.bg-shapes {
    position: relative;
    width: 100%;
    height: 100%;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    animation: float 6s ease-in-out infinite;
}

.shape-1 {
    width: 200px;
    height: 200px;
    top: 10%;
    right: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 150px;
    height: 150px;
    bottom: 20%;
    left: 5%;
    animation-delay: 2s;
}

.shape-3 {
    width: 100px;
    height: 100px;
    top: 50%;
    right: 30%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    margin-bottom: 30px;
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 25px;
}

.highlight {
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    line-height: 1.6;
    margin-bottom: 40px;
    opacity: 0.9;
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin-bottom: 50px;
}

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

.stat-number {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 5px;
    color: #fbbf24;
}

.stat-label {
    font-size: 14px;
    opacity: 0.8;
}

.hero-actions {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.hero-features {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.feature-tag {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.15);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    backdrop-filter: blur(10px);
}

/* ===== 手机展示 ===== */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.phone-mockup {
    position: relative;
    z-index: 2;
}

.phone-frame {
    width: 280px;
    height: 560px;
    background: #1f2937;
    border-radius: 35px;
    padding: 20px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #1f2937 0%, #374151 100%);
    border-radius: 25px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.call-ui {
    text-align: center;
    padding: 40px 20px;
}

.call-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 60px;
    width: 100%;
}

.call-status {
    font-size: 14px;
    opacity: 0.8;
}

.signal-bars {
    display: flex;
    gap: 3px;
}

.signal-bars span {
    width: 3px;
    height: 12px;
    background: #10b981;
    border-radius: 2px;
}

.signal-bars span:nth-child(2) { height: 16px; }
.signal-bars span:nth-child(3) { height: 20px; }
.signal-bars span:nth-child(4) { height: 24px; }

.caller-info {
    margin-bottom: 80px;
}

.avatar {
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 40px;
    backdrop-filter: blur(10px);
}

.caller-info h3 {
    font-size: 20px;
    margin-bottom: 8px;
}

.phone-number {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: 2px;
}

.call-type {
    font-size: 14px;
    opacity: 0.7;
}

.call-controls {
    display: flex;
    justify-content: center;
    gap: 60px;
}

.control-btn {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    border: none;
    font-size: 24px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.control-btn.accept {
    background: var(--secondary-color);
    color: white;
}

.control-btn.decline {
    background: var(--danger-color);
    color: white;
}

.control-btn:hover {
    transform: scale(1.1);
}

.floating-cards {
    position: absolute;
    width: 100%;
    height: 100%;
}

.float-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.95);
    padding: 15px 20px;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--gray-700);
    font-size: 14px;
    font-weight: 600;
    backdrop-filter: blur(10px);
    animation: float 4s ease-in-out infinite;
}

.float-card i {
    color: var(--primary-color);
    font-size: 18px;
}

.card-1 {
    top: 20%;
    right: -20px;
    animation-delay: 0s;
}

.card-2 {
    bottom: 30%;
    left: -30px;
    animation-delay: 1.5s;
}

.card-3 {
    top: 60%;
    right: -40px;
    animation-delay: 3s;
}

/* ===== 章节标题 ===== */
.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--gray-100);
    color: var(--primary-color);
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
}

.section-header h2 {
    font-size: 42px;
    font-weight: 800;
    color: var(--gray-800);
    margin-bottom: 20px;
    line-height: 1.2;
}

.section-header p {
    font-size: 18px;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ===== 400号码选择 ===== */
.numbers-section {
    padding: 120px 0;
    background: var(--gray-50);
}

.number-selector {
    max-width: 1000px;
    margin: 0 auto;
}

.selector-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: white;
    border: 2px solid var(--gray-200);
    border-radius: 25px;
    color: var(--gray-600);
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    font-size: 14px;
}

.tab-btn.active,
.tab-btn:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.numbers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.number-card {
    background: white;
    padding: 35px 30px;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
}

.number-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.number-card.featured {
    border-color: var(--accent-color);
    transform: scale(1.05);
}

.card-badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: var(--gradient-accent);
    color: white;
    padding: 6px 16px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 700;
}

.number-display {
    font-size: 32px;
    font-weight: 800;
    color: var(--gray-800);
    margin-bottom: 20px;
    letter-spacing: 2px;
}

.number-features {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 25px;
    flex-wrap: wrap;
}

.feature {
    padding: 4px 12px;
    background: var(--gray-100);
    color: var(--primary-color);
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.number-price {
    margin-bottom: 30px;
}

.price {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary-color);
}

.period {
    font-size: 16px;
    color: var(--gray-500);
    margin-left: 5px;
}

.more-numbers {
    text-align: center;
    padding: 40px;
    background: white;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
}

.more-numbers p {
    font-size: 18px;
    color: var(--gray-600);
    margin-bottom: 20px;
}

/* ===== 功能介绍 ===== */
.features-section {
    padding: 120px 0;
}

.features-showcase {
    max-width: 1100px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 35px;
}

.feature-card {
    background: white;
    padding: 40px 35px;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    font-size: 32px;
    color: white;
}

.feature-card h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 15px;
}

.feature-card p {
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 20px;
}

.feature-highlight {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--secondary-color);
    font-weight: 600;
    font-size: 14px;
}

/* ===== 价格套餐 ===== */
.pricing-section {
    padding: 120px 0;
    background: var(--gray-50);
}

.pricing-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-bottom: 60px;
    position: relative;
}

.toggle-label {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-600);
}

.toggle-switch {
    position: relative;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-switch label {
    display: block;
    width: 60px;
    height: 30px;
    background: var(--gray-300);
    border-radius: 15px;
    cursor: pointer;
    position: relative;
    transition: all 0.3s ease;
}

.toggle-switch label::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 24px;
    height: 24px;
    background: white;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.toggle-switch input:checked + label {
    background: var(--primary-color);
}

.toggle-switch input:checked + label::after {
    transform: translateX(30px);
}

.discount-badge {
    position: absolute;
    top: -40px;
    right: -20px;
    background: var(--gradient-accent);
    color: white;
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 700;
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 35px;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: white;
    border-radius: 25px;
    padding: 45px 35px;
    box-shadow: var(--shadow-md);
    text-align: center;
    position: relative;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.pricing-card.featured {
    border-color: var(--primary-color);
    transform: scale(1.05);
    background: linear-gradient(135deg, #f8faff 0%, #e0f2fe 100%);
}

.popular-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: white;
    padding: 8px 25px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 700;
}

.card-header h3 {
    font-size: 24px;
    font-weight: 800;
    color: var(--gray-800);
    margin-bottom: 8px;
}

.card-header p {
    color: var(--gray-500);
    font-size: 14px;
    margin-bottom: 30px;
}

.card-price {
    margin-bottom: 35px;
}

.price-symbol {
    font-size: 20px;
    vertical-align: top;
    color: var(--gray-600);
}

.price-amount {
    font-size: 48px;
    font-weight: 800;
    color: var(--primary-color);
}

.price-period {
    font-size: 16px;
    color: var(--gray-500);
}

.card-features {
    list-style: none;
    margin-bottom: 35px;
    text-align: left;
}

.card-features li {
    padding: 10px 0;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 15px;
}

.card-features .fa-check {
    color: var(--secondary-color);
    font-size: 16px;
}

.card-features .fa-times {
    color: var(--gray-400);
    font-size: 16px;
}

/* ===== 成功案例 ===== */
.cases-section {
    padding: 120px 0;
}

.cases-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 35px;
    max-width: 1100px;
    margin: 0 auto;
}

.case-card {
    background: white;
    padding: 40px 35px;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.case-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.case-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-secondary);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    font-size: 28px;
    color: white;
}

.case-content h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 15px;
}

.case-desc {
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 25px;
}

.case-stats {
    display: flex;
    gap: 30px;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 24px;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.stat-label {
    font-size: 12px;
    color: var(--gray-500);
}

/* ===== 联系咨询 ===== */
.contact-section {
    padding: 120px 0;
    background: var(--gradient-primary);
    color: white;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.info-header h2 {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 15px;
}

.info-header p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 50px;
}

.contact-methods {
    margin-bottom: 50px;
}

.method-item {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
    padding: 25px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.method-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(10px);
}

.method-icon {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.method-content h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 5px;
}

.method-content p {
    font-size: 16px;
    margin-bottom: 5px;
}

.method-content a {
    color: white;
    text-decoration: none;
    font-weight: 600;
}

.method-content span {
    font-size: 14px;
    opacity: 0.8;
}

.service-promise h4 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 20px;
}

.service-promise ul {
    list-style: none;
}

.service-promise li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    font-size: 15px;
}

.service-promise .fa-check-circle {
    color: #10b981;
    font-size: 16px;
}

.contact-form {
    background: rgba(255, 255, 255, 0.1);
    padding: 45px 40px;
    border-radius: 25px;
    backdrop-filter: blur(10px);
}

.form-header {
    text-align: center;
    margin-bottom: 35px;
}

.form-header h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

.form-header p {
    opacity: 0.9;
    font-size: 14px;
}

.form-group {
    margin-bottom: 25px;
}

.input-wrapper,
.select-wrapper,
.textarea-wrapper {
    position: relative;
}

.input-wrapper i,
.select-wrapper i,
.textarea-wrapper i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    font-size: 16px;
}

.textarea-wrapper i {
    top: 20px;
    transform: none;
}

.consult-form input,
.consult-form select,
.consult-form textarea {
    width: 100%;
    padding: 15px 15px 15px 45px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 16px;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.consult-form input::placeholder,
.consult-form textarea::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.consult-form input:focus,
.consult-form select:focus,
.consult-form textarea:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.5);
    background: rgba(255, 255, 255, 0.15);
}

.consult-form select {
    color: rgba(255, 255, 255, 0.9);
}

.consult-form select option {
    background: var(--gray-800);
    color: white;
}

.form-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
    font-size: 12px;
    opacity: 0.8;
}

/* ===== 页脚样式 ===== */
.footer {
    background: var(--gray-900);
    color: white;
}

.footer-main {
    padding: 80px 0 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: 50px;
}

.footer-brand .brand-logo {
    margin-bottom: 25px;
}

.footer-brand .logo-icon {
    background: var(--gradient-primary);
}

.footer-brand .brand-text h3 {
    color: white;
    font-size: 22px;
    font-weight: 700;
}

.footer-brand .brand-text p {
    color: var(--gray-400);
    font-size: 14px;
}

.brand-desc {
    margin-bottom: 30px;
}

.brand-desc p {
    color: var(--gray-400);
    line-height: 1.7;
    font-size: 15px;
}

.contact-info {
    margin-bottom: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 15px;
    font-size: 14px;
    color: var(--gray-400);
}

.contact-item i {
    color: var(--primary-color);
    width: 16px;
}

.contact-item a {
    color: white;
    text-decoration: none;
    font-weight: 600;
}

.footer-section h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 25px;
    color: white;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--gray-400);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--primary-color);
}

.footer-features {
    background: var(--gray-800);
    padding: 40px 0;
    border-top: 1px solid var(--gray-700);
}

.features-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 15px;
    text-align: left;
}

.footer-features .feature-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: white;
}

.feature-text h5 {
    font-size: 16px;
    font-weight: 700;
    color: white;
    margin-bottom: 5px;
}

.feature-text p {
    font-size: 14px;
    color: var(--gray-400);
}

.footer-bottom {
    background: var(--gray-800);
    padding: 25px 0;
    border-top: 1px solid var(--gray-700);
}

.bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.copyright p {
    color: var(--gray-400);
    font-size: 14px;
}

.bottom-links {
    display: flex;
    align-items: center;
    gap: 15px;
}

.bottom-links a {
    color: var(--gray-400);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.bottom-links a:hover {
    color: var(--primary-color);
}

.separator {
    color: var(--gray-600);
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--gray-700);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* ===== 返回顶部按钮 ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
}

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

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

/* ===== 浮动客服 ===== */
.floating-service {
    position: fixed;
    bottom: 100px;
    right: 30px;
    z-index: 1000;
}

.service-toggle {
    width: 60px;
    height: 60px;
    background: var(--gradient-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    animation: pulse 2s infinite;
}

.service-toggle:hover {
    transform: scale(1.1);
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
    70% { box-shadow: 0 0 0 10px rgba(16, 185, 129, 0); }
    100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.service-panel {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 280px;
    background: white;
    border-radius: 15px;
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
}

.service-panel.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid var(--gray-200);
}

.panel-header h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--gray-800);
}

.panel-close {
    background: none;
    border: none;
    color: var(--gray-400);
    font-size: 18px;
    cursor: pointer;
    transition: color 0.3s ease;
}

.panel-close:hover {
    color: var(--gray-600);
}

.panel-content {
    padding: 20px;
}

.service-options {
    margin-bottom: 20px;
}

.service-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: 10px;
    text-decoration: none;
    color: var(--gray-700);
    transition: all 0.3s ease;
    margin-bottom: 8px;
}

.service-option:hover {
    background: var(--gray-100);
    color: var(--primary-color);
}

.service-option i {
    font-size: 18px;
    width: 20px;
}

.quick-info {
    padding: 15px;
    background: var(--gray-50);
    border-radius: 10px;
    text-align: center;
}

.quick-info p {
    font-size: 14px;
    color: var(--gray-600);
    margin-bottom: 5px;
}

.quick-info p:first-child {
    color: var(--primary-color);
    font-weight: 600;
}

/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 60px;
        text-align: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
    
    .features-row {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .mobile-toggle {
        display: flex;
    }
    
    .nav-menu {
        display: none;
    }
    
    .nav-actions {
        display: none;
    }
    
    .hero {
        padding: 80px 0;
        min-height: auto;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-actions .btn {
        width: 100%;
    }
    
    .phone-frame {
        width: 240px;
        height: 480px;
    }
    
    .floating-cards {
        display: none;
    }
    
    .selector-tabs {
        flex-direction: column;
        align-items: center;
    }
    
    .numbers-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-cards {
        grid-template-columns: 1fr;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .cases-showcase {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .features-row {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .bottom-content {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .service-panel {
        width: 260px;
        right: -100px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .section-header h2 {
        font-size: 32px;
    }
    
    .numbers-section,
    .features-section,
    .pricing-section,
    .cases-section,
    .contact-section {
        padding: 80px 0;
    }
    
    .contact-form {
        padding: 30px 25px;
    }
    
    .footer-main {
        padding: 60px 0 30px;
    }
}

/* ===== 动画效果 ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* ===== 滚动条样式 ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* ===== 平滑滚动 ===== */
html {
    scroll-behavior: smooth;
}

/* ===== 选择文本样式 ===== */
::selection {
    background: var(--primary-color);
    color: white;
}

/* ===== 焦点样式 ===== */
*:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

button:focus,
a:focus {
    outline-offset: 4px;
}