/* 
 * 当地产 - 土特产批发官方网站
 * 优化版样式文件
 */

/* ==================== CSS变量 ==================== */
:root {
    --primary-color: #f57542;
    --primary-dark: #e05a2b;
    --primary-light: #ff8a5c;
    --secondary-color: #10884e;
    --secondary-dark: #0d6e3f;
    --secondary-light: #14a660;
    --accent-color: #ffc107;
    --text-dark: #1a1a1a;
    --text-body: #333333;
    --text-light: #666666;
    --text-muted: #999999;
    --bg-white: #ffffff;
    --bg-light: #f8f9fa;
    --bg-lighter: #f1f3f5;
    --border-color: #e9ecef;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
    --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.15);
    --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --radius-sm: 8px;
    --radius: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
}

/* ==================== 基础重置 ==================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-body);
    background-color: var(--bg-white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    font-weight: 700;
    color: var(--text-dark);
    line-height: 1.3;
}

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

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

ul, ol {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

input, textarea, select {
    font-family: inherit;
    outline: none;
}

/* ==================== 容器 ==================== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ==================== 按钮样式 ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 15px rgba(245, 117, 66, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(245, 117, 66, 0.45);
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
}

.btn-secondary {
    background: linear-gradient(135deg, var(--secondary-color), var(--secondary-dark));
    color: white;
    box-shadow: 0 4px 15px rgba(16, 136, 78, 0.35);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(16, 136, 78, 0.45);
}

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

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

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

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

.btn-sm {
    padding: 10px 20px;
    font-size: 14px;
}

.btn-lg {
    padding: 18px 36px;
    font-size: 16px;
}

/* ==================== 头部导航 ==================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo img {
    height: 48px;
    width: auto;
    transition: var(--transition);
}

.logo:hover img {
    transform: scale(1.05);
}

/* 导航 */
.nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    position: relative;
    padding: 10px 18px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-body);
    border-radius: var(--radius);
    transition: var(--transition);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 20px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    background: rgba(245, 117, 66, 0.08);
}

.nav-link:hover::after,
.nav-link.active::after {
    transform: translateX(-50%) scaleX(1);
}

/* 头部操作 */
.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.search-btn,
.cart-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--bg-light);
    color: var(--text-body);
    font-size: 18px;
    transition: var(--transition);
    position: relative;
}

.search-btn:hover,
.cart-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.cart-count {
    position: absolute;
    top: -4px;
    right: -4px;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    background: var(--primary-color);
    color: white;
    font-size: 11px;
    font-weight: 700;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cart-count.bounce {
    animation: bounce 0.5s ease;
}

@keyframes bounce {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.3); }
}

.phone-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: linear-gradient(135deg, rgba(245, 117, 66, 0.1), rgba(245, 117, 66, 0.05));
    border-radius: 50px;
    font-weight: 600;
    color: var(--primary-color);
    transition: var(--transition);
}

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

/* 搜索框 */
.search-box {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: white;
    padding: 20px 0;
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: -1;
}

.search-box.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.search-form {
    display: flex;
    align-items: center;
    gap: 12px;
}

.search-input {
    flex: 1;
    padding: 14px 24px;
    border: 2px solid var(--border-color);
    border-radius: 50px;
    font-size: 16px;
    transition: var(--transition);
}

.search-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(245, 117, 66, 0.1);
}

.search-submit,
.search-close {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    font-size: 18px;
    transition: var(--transition);
}

.search-submit:hover {
    background: var(--primary-dark);
    transform: scale(1.05);
}

.search-close {
    background: var(--bg-light);
    color: var(--text-body);
}

.search-close:hover {
    background: var(--border-color);
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

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

.mobile-menu-btn:hover span {
    background: var(--primary-color);
}

/* 移动端菜单 */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 320px;
    height: 100vh;
    background: white;
    z-index: 1002;
    transition: var(--transition-slow);
    display: flex;
    flex-direction: column;
}

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

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.mobile-menu-close {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--bg-light);
    color: var(--text-body);
    font-size: 18px;
    transition: var(--transition);
}

.mobile-menu-close:hover {
    background: var(--primary-color);
    color: white;
}

.mobile-nav {
    flex: 1;
    padding: 20px 0;
    overflow-y: auto;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 24px;
    font-size: 16px;
    font-weight: 500;
    color: var(--text-body);
    transition: var(--transition);
    position: relative;
}

.mobile-nav-link i {
    width: 24px;
    text-align: center;
    color: var(--primary-color);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    background: rgba(245, 117, 66, 0.08);
    color: var(--primary-color);
}

.mobile-cart-count {
    margin-left: auto;
    min-width: 24px;
    height: 24px;
    padding: 0 8px;
    background: var(--primary-color);
    color: white;
    font-size: 12px;
    font-weight: 700;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-menu-footer {
    padding: 20px 24px;
    border-top: 1px solid var(--border-color);
}

.mobile-phone-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 16px;
}

/* 遮罩层 */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ==================== 主视觉区 ==================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    background: linear-gradient(135deg, var(--bg-white) 0%, var(--bg-light) 50%, rgba(245, 117, 66, 0.05) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 60%;
    height: 120%;
    background: radial-gradient(ellipse, rgba(245, 117, 66, 0.08) 0%, transparent 60%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -10%;
    width: 40%;
    height: 80%;
    background: radial-gradient(ellipse, rgba(16, 136, 78, 0.06) 0%, transparent 60%);
    pointer-events: none;
}

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

.hero-content {
    max-width: 560px;
}

.hero-slogan {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: linear-gradient(135deg, rgba(245, 117, 66, 0.12), rgba(245, 117, 66, 0.05));
    color: var(--primary-color);
    font-size: 14px;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 24px;
    letter-spacing: 0.5px;
}

.hero-slogan::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.hero-title span {
    color: var(--primary-color);
    display: block;
    position: relative;
}

.hero-title span::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 0;
    width: 100%;
    height: 12px;
    background: rgba(245, 117, 66, 0.2);
    border-radius: 4px;
    z-index: -1;
}

.hero-subtitle {
    font-size: 22px;
    color: var(--text-light);
    margin-bottom: 20px;
    font-weight: 500;
}

.hero-desc {
    font-size: 16px;
    color: var(--text-light);
    margin-bottom: 36px;
    line-height: 1.8;
}

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

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

.hero-image-main {
    width: 100%;
    max-width: 520px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-hover);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(1deg); }
}

.hero-stats {
    position: absolute;
    bottom: 30px;
    left: -20px;
    display: flex;
    gap: 0;
    background: white;
    padding: 24px 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-hover);
}

.stat-item {
    text-align: center;
    padding: 0 24px;
    border-right: 1px solid var(--border-color);
}

.stat-item:last-child {
    border-right: none;
}

.stat-number {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1;
}

.stat-label {
    font-size: 13px;
    color: var(--text-light);
    margin-top: 6px;
}

/* ==================== 通用区块样式 ==================== */
.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(16, 136, 78, 0.1);
    color: var(--secondary-color);
    font-size: 13px;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-tag::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--secondary-color);
    border-radius: 50%;
}

.section-title {
    font-size: 40px;
    font-weight: 800;
    margin-bottom: 16px;
    line-height: 1.2;
    color: var(--text-dark);
}

.section-desc {
    font-size: 17px;
    color: var(--text-light);
    line-height: 1.7;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px;
}

/* ==================== 关于我们 ==================== */
.about {
    padding: 120px 0;
    background: var(--bg-white);
    position: relative;
}

.about-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-images {
    position: relative;
}

.about-image-main {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.about-image-small {
    position: absolute;
    bottom: -40px;
    right: -40px;
    width: 220px;
    height: 220px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-hover);
    border: 6px solid white;
    animation: float 5s ease-in-out infinite;
    animation-delay: 1s;
}

.about-content {
    max-width: 540px;
}

.about-text {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.9;
    margin-bottom: 32px;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 36px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 16px;
    background: var(--bg-light);
    border-radius: var(--radius);
    transition: var(--transition);
}

.feature-item:hover {
    background: rgba(245, 117, 66, 0.08);
    transform: translateX(5px);
}

.feature-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, rgba(245, 117, 66, 0.15), rgba(245, 117, 66, 0.05));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 18px;
    flex-shrink: 0;
}

.feature-text h4 {
    font-size: 16px;
    margin-bottom: 4px;
    color: var(--text-dark);
}

.feature-text p {
    font-size: 13px;
    color: var(--text-light);
}

/* ==================== 产品分类 ==================== */
.categories {
    padding: 120px 0;
    background: var(--bg-light);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.category-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
}

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

.category-image-wrapper {
    position: relative;
    overflow: hidden;
    height: 180px;
}

.category-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.category-card:hover .category-image {
    transform: scale(1.1);
}

.category-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 50%, rgba(0,0,0,0.6));
    display: flex;
    align-items: flex-end;
    padding: 16px;
}

.category-icon {
    width: 48px;
    height: 48px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 20px;
}

.category-content {
    padding: 20px;
    text-align: center;
}

.category-name {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text-dark);
}

.category-count {
    font-size: 14px;
    color: var(--text-light);
}

.category-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 14px;
    padding: 10px 20px;
    background: var(--bg-light);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-color);
    opacity: 0;
    transform: translateY(10px);
    transition: var(--transition);
}

.category-card:hover .category-btn {
    opacity: 1;
    transform: translateY(0);
}

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

/* ==================== 热门产品 ==================== */
.products {
    padding: 120px 0;
    background: var(--bg-white);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.product-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: transparent;
}

.product-image {
    position: relative;
    width: 100%;
    height: 240px;
    overflow: hidden;
    background: var(--bg-light);
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.product-card:hover .product-image img {
    transform: scale(1.08);
}

.product-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 6px 14px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    font-size: 12px;
    font-weight: 700;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    z-index: 2;
}

.product-badge.new {
    background: linear-gradient(135deg, var(--secondary-color), var(--secondary-dark));
}

.product-badge.sale {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
}

.product-actions {
    position: absolute;
    bottom: 16px;
    right: 16px;
    display: flex;
    gap: 10px;
    opacity: 0;
    transform: translateY(10px);
    transition: var(--transition);
    z-index: 2;
}

.product-card:hover .product-actions {
    opacity: 1;
    transform: translateY(0);
}

.product-action-btn {
    width: 42px;
    height: 42px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-body);
    box-shadow: var(--shadow);
    transition: var(--transition);
    font-size: 16px;
}

.product-action-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: scale(1.1);
}

.product-content {
    padding: 20px;
}

.product-category {
    font-size: 12px;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.product-name {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-dark);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

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

.product-price {
    display: flex;
    align-items: baseline;
    gap: 10px;
}

.price-current {
    font-size: 20px;
    font-weight: 800;
    color: var(--primary-color);
}

.price-original {
    font-size: 14px;
    color: var(--text-muted);
    text-decoration: line-through;
}

.product-rating {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 14px;
    color: var(--accent-color);
}

.product-rating span {
    color: var(--text-light);
    font-size: 13px;
}

/* ==================== 优势特色 ==================== */
.features {
    padding: 120px 0;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.features::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 100%;
    background: radial-gradient(ellipse, rgba(255,255,255,0.08) 0%, transparent 60%);
    pointer-events: none;
}

.features .section-title {
    color: white;
}

.features .section-desc {
    color: rgba(255, 255, 255, 0.8);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
    z-index: 1;
}

.feature-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    padding: 40px 28px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.feature-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-10px);
    border-color: rgba(255, 255, 255, 0.3);
}

.feature-card-icon {
    width: 72px;
    height: 72px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 28px;
    color: white;
    transition: var(--transition);
}

.feature-card:hover .feature-card-icon {
    background: white;
    color: var(--secondary-color);
    transform: scale(1.1);
}

.feature-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
    color: white;
}

.feature-card p {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
}

/* ==================== 客户评价 ==================== */
.testimonials {
    padding: 120px 0;
    background: var(--bg-light);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.testimonial-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 36px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 80px;
    color: rgba(245, 117, 66, 0.1);
    font-family: Georgia, serif;
    line-height: 1;
}

.testimonial-rating {
    display: flex;
    gap: 4px;
    margin-bottom: 20px;
    color: var(--accent-color);
    font-size: 16px;
}

.testimonial-text {
    font-size: 16px;
    color: var(--text-body);
    line-height: 1.8;
    margin-bottom: 28px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.testimonial-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--bg-light);
}

.testimonial-info h4 {
    font-size: 17px;
    margin-bottom: 4px;
    color: var(--text-dark);
}

.testimonial-info p {
    font-size: 14px;
    color: var(--text-light);
}

/* ==================== CTA区域 ==================== */
.cta {
    padding: 140px 0;
    background: url('../images/cta-bg.jpg') center/cover no-repeat fixed;
    position: relative;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0,0,0,0.6), rgba(0,0,0,0.4));
}

.cta-inner {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: 48px;
    font-weight: 800;
    color: white;
    margin-bottom: 20px;
}

.cta-subtitle {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ==================== 页脚 ==================== */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 80px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand .logo {
    margin-bottom: 24px;
}

.footer-brand .logo img {
    height: 48px;
    filter: brightness(0) invert(1);
}

.footer-desc {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin-bottom: 28px;
}

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

.social-link {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary-color);
    transform: translateY(-3px) rotate(5deg);
}

.footer-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 24px;
    color: white;
    position: relative;
    padding-bottom: 12px;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
}

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

.footer-links a {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-links a::before {
    content: '';
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-color);
    padding-left: 8px;
}

.footer-links a:hover::before {
    width: 12px;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 16px;
    font-size: 15px;
    color: rgba(255, 255, 255, 0.7);
}

.footer-contact i {
    color: var(--primary-color);
    margin-top: 3px;
    font-size: 16px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-copyright {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
}

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

.payment-icon {
    width: 44px;
    height: 30px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.payment-icon:hover {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

/* ==================== 回到顶部按钮 ==================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 999;
}

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

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

/* ==================== 在线客服 ==================== */
.online-service {
    position: fixed;
    bottom: 100px;
    right: 30px;
    z-index: 998;
}

.service-btn {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--secondary-color), var(--secondary-dark));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    animation: pulse-service 2s infinite;
}

@keyframes pulse-service {
    0%, 100% { box-shadow: 0 4px 20px rgba(16, 136, 78, 0.4); }
    50% { box-shadow: 0 4px 30px rgba(16, 136, 78, 0.6); }
}

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

.service-panel {
    position: absolute;
    bottom: 70px;
    right: 0;
    width: 280px;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-hover);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.95);
    transition: var(--transition);
    overflow: hidden;
}

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

.service-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: linear-gradient(135deg, var(--secondary-color), var(--secondary-dark));
    color: white;
}

.service-header h4 {
    font-size: 16px;
    font-weight: 600;
}

.service-close {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255,255,255,0.2);
    color: white;
    font-size: 14px;
    transition: var(--transition);
}

.service-close:hover {
    background: rgba(255,255,255,0.3);
}

.service-body {
    padding: 20px;
}

.service-body p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 16px;
    line-height: 1.6;
}

.service-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.service-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: var(--bg-light);
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-body);
    transition: var(--transition);
}

.service-option i {
    width: 36px;
    height: 36px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.service-option:hover {
    background: rgba(245, 117, 66, 0.1);
    color: var(--primary-color);
}

/* ==================== 通知提示 ==================== */
.notification {
    position: fixed;
    top: 100px;
    right: 30px;
    padding: 16px 24px;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow-hover);
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 15px;
    font-weight: 500;
    transform: translateX(150%);
    transition: var(--transition);
    z-index: 1003;
}

.notification.show {
    transform: translateX(0);
}

.notification-success {
    border-left: 4px solid var(--secondary-color);
    color: var(--secondary-color);
}

.notification-error {
    border-left: 4px solid #e74c3c;
    color: #e74c3c;
}

.notification-info {
    border-left: 4px solid var(--primary-color);
    color: var(--primary-color);
}

/* ==================== 页面横幅 ==================== */
.page-banner {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-white) 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 150%;
    background: radial-gradient(ellipse, rgba(245, 117, 66, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.page-banner-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
    color: var(--text-dark);
}

.page-banner-desc {
    font-size: 18px;
    color: var(--text-light);
    position: relative;
    z-index: 1;
}

/* ==================== 面包屑导航 ==================== */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 0;
    font-size: 14px;
    color: var(--text-light);
}

.breadcrumb a {
    color: var(--text-body);
}

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

.breadcrumb i {
    font-size: 12px;
    color: var(--text-muted);
}

.breadcrumb-current {
    color: var(--text-muted);
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 1200px) {
    .hero-title {
        font-size: 48px;
    }
    
    .categories-grid,
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .phone-btn span {
        display: none;
    }
    
    .hero-inner {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 60px;
    }
    
    .hero-content {
        max-width: 100%;
        order: 2;
    }
    
    .hero-image {
        order: 1;
    }
    
    .hero-title {
        font-size: 42px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        position: relative;
        bottom: auto;
        left: auto;
        justify-content: center;
        margin-top: 40px;
    }
    
    .about-inner {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .about-images {
        order: 2;
    }
    
    .about-content {
        order: 1;
        max-width: 100%;
        text-align: center;
    }
    
    .about-features {
        max-width: 500px;
        margin: 0 auto 36px;
    }
    
    .about-image-small {
        display: none;
    }
    
    .categories-grid,
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 34px;
    }
    
    .cta-title {
        font-size: 38px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        gap: 16px;
        padding: 20px;
    }
    
    .stat-item {
        padding: 0 16px;
    }
    
    .categories-grid,
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .section-title {
        font-size: 30px;
    }
    
    .cta-title {
        font-size: 32px;
    }
    
    .page-banner-title {
        font-size: 36px;
    }
    
    .online-service {
        bottom: 90px;
        right: 16px;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 16px;
    }
}

/* ==================== 动画效果 ==================== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.animate-fade-left {
    opacity: 0;
    transform: translateX(-50px);
}

.animate-fade-left.animate-in {
    opacity: 1;
    transform: translateX(0);
}

.animate-fade-right {
    opacity: 0;
    transform: translateX(50px);
}

.animate-fade-right.animate-in {
    opacity: 1;
    transform: translateX(0);
}

.animate-scale {
    opacity: 0;
    transform: scale(0.9);
}

.animate-scale.animate-in {
    opacity: 1;
    transform: scale(1);
}

/* 延迟动画 */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }