/* ===================================
   香烟批发官网 - 高级定制CSS样式表
   =================================== */

/* CSS 变量定义 - 可自定义主题颜色 */
:root {
    --primary-color: rgb(44, 62, 80);
    --primary-dark: rgb(30, 42, 54);
    --primary-light: rgb(58, 78, 96);
    --accent-color: #c9a227;
    --accent-light: #d4b445;
    --text-dark: #2c3e50;
    --text-gray: #6c757d;
    --text-light: #95a5a6;
    --bg-light: #f8f9fa;
    --bg-dark: #1a1a2e;
    --white: #ffffff;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.16);
    --transition-fast: 0.3s ease;
    --transition-slow: 0.5s ease;
    --border-radius: 12px;
    --border-radius-lg: 20px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-dark);
    background-color: var(--white);
    overflow-x: hidden;
}

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

ul, li {
    list-style: none;
}

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

.container-75ca1f {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===================================
   按钮样式
   =================================== */
.btn-fad208 {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-size: 16px;
    font-weight: 600;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
}

.btn-primary-ee04b8 {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.btn-primary-ee04b8:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary-3620df {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-secondary-3620df:hover {
    background: var(--primary-color);
    color: var(--white);
}

.btn-outline-e09a4b {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
    padding: 12px 28px;
}

.btn-outline-e09a4b:hover {
    background: var(--primary-color);
    color: var(--white);
}

.btn-block-64199b {
    width: 100%;
}

/* ===================================
   顶部导航栏
   =================================== */
.header-e8f5db {
    position: relative;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.header-e8f5db.scrolled {
    box-shadow: var(--shadow-md);
}

.header-content-f64501 {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo-6cb259 {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img-8c7d64 {
    height: 45px;
    width: auto;
}

.brand-name-ca5a6b {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-menu-beef81 {
    display: flex;
    gap: 8px;
}

.nav-link-e8da9b {
    padding: 10px 16px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-dark);
    border-radius: 8px;
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link-e8da9b::after {
    content: '';
    position: absolute;
    bottom: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width var(--transition-fast);
}

.nav-link-e8da9b:hover,
.nav-link-e8da9b.active {
    color: var(--primary-color);
    background: rgba(44, 62, 80, 0.05);
}

.nav-link-e8da9b:hover::after,
.nav-link-e8da9b.active::after {
    width: 20px;
}

.mobile-menu-btn-3ca7ab {
    display: none;
    font-size: 24px;
    color: var(--primary-color);
    cursor: pointer;
    padding: 8px;
}

/* ===================================
   首页横幅区域
   =================================== */
.hero-3cf821 {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    overflow: hidden;
}

.hero-3cf821::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url(../images/hero-bg.jpg) center / cover;
    animation: float 20s linear infinite;
    opacity: 0.1;
}

@keyframes float {
    0% { transform: translateY(0) rotate(0deg); }
    100% { transform: translateY(-200px) rotate(360deg); }
}

.hero-overlay-08bbb8 {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(201, 162, 39, 0.1) 0%, transparent 50%);
}

.hero-content-306c61 {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 0 20px;
    max-width: 900px;
}

.hero-title-1655a0 {
    font-size: 56px;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 24px;
    letter-spacing: 2px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.hero-subtitle-511371 {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 40px;
    line-height: 1.9;
}

.hero-buttons-df427e {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-scroll-fe0996 {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.hero-scroll-fe0996 a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255,0.1);
    color: var(--white);
    font-size: 20px;
    animation: bounce 2s infinite;
    transition: all var(--transition-fast);
}

.hero-scroll-fe0996 a:hover {
    background: var(--accent-color);
    color: var(--primary-color);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

/* ===================================
   通用区块样式
   =================================== */
.section-27e409 {
    padding: 100px 0;
}

.section-header-ccf16c {
    text-align: center;
    margin-bottom: 60px;
}

.section-header-left-905c35 {
    text-align: left;
    margin-bottom: 30px;
}

.section-title-1adb49 {
    font-size: 40px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 16px;
    position: relative;
    display: inline-block;
}

.section-title-1adb49::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--accent-color);
}

.section-header-left-905c35 .section-title-1adb49::after {
    left: 0;
    transform: none;
}

.section-subtitle-59181d {
    font-size: 18px;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
}

.section-header-left-905c35 .section-subtitle-59181d {
    margin: 0;
}

/* ===================================
   产品展示区域
   =================================== */
.products-section-4d1d90 {
    background: var(--bg-light);
}

.products-grid-96dfe3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.product-card-ad52ae {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.product-card-ad52ae:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.product-image-7c446a {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.product-image-7c446a img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.product-card-ad52ae:hover .product-image-7c446a img {
    transform: scale(1.08);
}

.product-badge-d3b88c {
    position: absolute;
    top: 15px;
    right: 15px;
    padding: 6px 14px;
    background: var(--accent-color);
    color: var(--white);
    font-size: 12px;
    font-weight: 600;
    border-radius: 20px;
}

.product-info-61b14e {
    padding: 24px;
}

.product-title-0850cf {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 12px;
}

.product-desc-a50370 {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 16px;
}

.product-link-b9a165 {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-color);
    transition: all var(--transition-fast);
}

.product-link-b9a165:hover {
    color: var(--accent-color);
    gap: 12px;
}

/* ===================================
   服务优势区域
   =================================== */
.services-section-742bf1 {
    background: var(--white);
}

.services-grid-e68c9c {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card-c2d7c8 {
    padding: 40px 30px;
    background: var(--bg-light);
    border-radius: var(--border-radius-lg);
    text-align: center;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.service-card-c2d7c8::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transition: transform var(--transition-fast);
}

.service-card-c2d7c8:hover::before {
    transform: scaleX(1);
}

.service-card-c2d7c8:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.service-icon-c3d4d4 {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    color: var(--white);
    font-size: 32px;
    transition: all var(--transition-fast);
}

.service-card-c2d7c8:hover .service-icon-c3d4d4 {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    transform: rotateY(180deg);
}

.service-title-e71da6 {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 12px;
}

.service-desc-99f579 {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.7;
}

/* ===================================
   关于我们区域
   =================================== */
.about-section-ae8013 {
    background: var(--bg-light);
}

.about-content-f17f70 {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: center;
}

.about-image-cba8b3 {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-image-cba8b3 img {
    width: 100%;
    height: auto;
    display: block;
}

.about-text-d0783d {
    padding: 20px 0;
}

.about-intro-588713 {
    font-size: 18px;
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: 20px;
}

.about-detail-935d29 {
    margin-bottom: 30px;
}

.about-detail-935d29 p {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.9;
    margin-bottom: 16px;
}

.about-stats-4ddcc4 {
    display: flex;
    gap: 40px;
}

.stat-item-d2a8d5 {
    text-align: center;
}

.stat-number-e4fc1d {
    display: block;
    font-size: 42px;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label-2df6da {
    font-size: 14px;
    color: var(--text-gray);
}

/* ===================================
   产品案例区域
   =================================== */
.cases-section-f5ff0f {
    background: var(--white);
}

.cases-grid-5cfc90 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.case-card-185412 {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    aspect-ratio: 1;
    cursor: pointer;
}

.case-image-1d03b6 {
    width: 100%;
    height: 100%;
    position: relative;
}

.case-image-1d03b6 img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.case-card-185412:hover .case-image-1d03b6 img {
    transform: scale(1.1);
}

.case-overlay-ebec53 {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(44, 62, 80, 0.9) 100%);
    display: flex;
    align-items: flex-end;
    padding: 24px;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.case-card-185412:hover .case-overlay-ebec53 {
    opacity: 1;
}

.case-info-0e2af3 h4 {
    color: var(--white);
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
}

.case-info-0e2af3 p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

/* ===================================
   新闻资讯区域
   =================================== */
.news-section-7d5848 {
    background: var(--bg-light);
}

.news-grid-ab428c {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.news-card-c9ff82 {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.news-card-c9ff82:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.news-image-95b755 {
    height: 200px;
    overflow: hidden;
}

.news-image-95b755 img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.news-card-c9ff82:hover .news-image-95b755 img {
    transform: scale(1.08);
}

.news-content-757c6a {
    padding: 24px;
}

.news-meta-7633cd {
    display: flex;
    gap: 20px;
    margin-bottom: 12px;
    font-size: 13px;
    color: var(--text-light);
}

.news-meta-7633cd i {
    margin-right: 4px;
}

.news-title-27a465 {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 12px;
    line-height: 1.4;
    transition: color var(--transition-fast);
}

.news-card-c9ff82:hover .news-title-27a465 {
    color: var(--accent-color);
}

.news-summary-0b3f18 {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 16px;
}

.news-link-459f6c {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-color);
    transition: all var(--transition-fast);
}

.news-link-459f6c:hover {
    color: var(--accent-color);
    gap: 12px;
}

.news-more-b11835 {
    text-align: center;
    margin-top: 50px;
}

/* ===================================
   常见问题区域
   =================================== */
.faq-section-39e9b7 {
    background: var(--white);
}

.faq-list-9b1e7a {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item-c67ad7 {
    margin-bottom: 16px;
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid rgba(44, 62, 80, 0.1);
}

.faq-question-8a8db5 {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 30px;
    background: var(--bg-light);
    cursor: pointer;
    font-size: 17px;
    font-weight: 600;
    color: var(--primary-color);
    transition: all var(--transition-fast);
}

.faq-question-8a8db5:hover {
    background: rgba(44, 62, 80, 0.05);
    color: var(--accent-color);
}

.faq-question-8a8db5 i {
    font-size: 18px;
    transition: transform var(--transition-fast);
}

.faq-item-c67ad7.active .faq-question-8a8db5 i {
    transform: rotate(45deg);
}

.faq-answer-a5f6be {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow), padding var(--transition-slow);
}

.faq-item-c67ad7.active .faq-answer-a5f6be {
    max-height: 300px;
}

.faq-answer-a5f6be p {
    padding: 24px 30px;
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.8;
    background: var(--white);
}

/* ===================================
   客户评价区域
   =================================== */
.reviews-section-36f8dd {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    padding: 100px 0;
}

.reviews-section-36f8dd .section-title-1adb49 {
    color: var(--white);
}

.reviews-section-36f8dd .section-subtitle-59181d {
    color: rgba(255, 255, 255, 0.7);
}

.reviews-grid-1fd5d9 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.review-card-b415fe {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-fast);
}

.review-card-b415fe:hover {
    transform: translateY(-5px);
}

.review-header-0433fb {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.reviewer-avatar-07dd16 {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    object-fit: cover;
    background: var(--primary-color);
}

.reviewer-name-7d0d2a {
    font-size: 17px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 4px;
}

.reviewer-company-451154 {
    font-size: 13px;
    color: var(--text-gray);
}

.review-rating-53fe00 {
    margin-bottom: 16px;
}

.review-rating-53fe00 i {
    color: var(--accent-color);
    font-size: 14px;
    margin-right: 2px;
}

.review-content-de40a4 p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.8;
    font-style: italic;
    position: relative;
    padding-left: 20px;
}

.review-content-de40a4 p::before {
    content: '"';
    position: absolute;
    left: 0;
    top: -5px;
    font-size: 40px;
    color: var(--accent-color);
    font-family: Georgia, serif;
    line-height: 1;
}

/* ===================================
   联系我们区域
   =================================== */
.contact-section-4d1385 {
    background: var(--bg-light);
}

.contact-content-710550 {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
}

.contact-info-8477c8 {
    padding: 40px;
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.contact-item-20b74c {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(44, 62, 80, 0.08);
}

.contact-item-20b74c:last-of-type {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.contact-icon-fe109d {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 12px;
    color: var(--white);
    font-size: 20px;
    flex-shrink: 0;
}

.contact-text-42d688 h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 6px;
}

.contact-text-42d688 p {
    font-size: 14px;
    color: var(--text-gray);
}

.contact-social-588dd7 {
    display: flex;
    gap: 12px;
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid rgba(44, 62, 80, 0.08);
}

.social-link-4a258d {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-light);
    border-radius: 50%;
    color: var(--primary-color);
    font-size: 18px;
    transition: all var(--transition-fast);
}

.social-link-4a258d:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-3px);
}

.contact-form-wrapper-60b0eb {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-md);
}

.contact-form-0ebed6 .form-group-2c8455 {
    margin-bottom: 20px;
}

.contact-form-0ebed6 input,
.contact-form-0ebed6 select,
.contact-form-0ebed6 textarea {
    width: 100%;
    padding: 16px 20px;
    font-size: 15px;
    border: 2px solid rgba(44, 62, 80, 0.1);
    border-radius: var(--border-radius);
    outline: none;
    transition: all var(--transition-fast);
    font-family: inherit;
}

.contact-form-0ebed6 input:focus,
.contact-form-0ebed6 select:focus,
.contact-form-0ebed6 textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(44, 62, 80, 0.1);
}

.contact-form-0ebed6 textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form-0ebed6 select {
    cursor: pointer;
    appearance: none;
    background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3-67a40d.org/2000/svg" width="12" height="12" viewBox="0 0 12 12"><path fill="%232c3e50" d="M6 8L1 3h10z"/></svg>');
    background-repeat: no-repeat;
    background-position: right 20px center;
}

.flink-section-28f85f {
    background: white;
    color: #2d3748;
    padding: 30px 0;
}
.flink-header-987fb1{
    font-size: 20px;
    font-weight: 600;
    padding-bottom: 10px;
}
.flink-section-28f85f li{
    list-style: none;
    display: inline;
    padding-right: 20px;
}
.flink-section-28f85f a{
    color: #718096;
    text-decoration: none;
}

/* ===================================
   页脚区域
   =================================== */
.footer-6133f4 {
    background: var(--bg-dark);
    padding: 70px 0 30px;
}

.footer-content-8dc4c2 {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 50px;
}

.footer-brand-dcecb1 {
    padding-right: 20px;
}

.footer-logo-5887ed {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-logo-5887ed img {
    height: 36px;
    width: auto;
}

.footer-logo-5887ed span {
    font-size: 20px;
    font-weight: 700;
    color: var(--white);
}

.footer-desc-e86545 {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.8;
}

.footer-links-74ce3b h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 24px;
    position: relative;
}

.footer-links-74ce3b h4::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--accent-color);
}

.footer-links-74ce3b ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links-74ce3b a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    transition: all var(--transition-fast);
}

.footer-links-74ce3b a:hover {
    color: var(--accent-color);
    padding-left: 5px;
}

.footer-bottom-344ea5 {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom-344ea5 p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 6px;
}

/* ===================================
   返回顶部按钮
   =================================== */
.back-to-top-7b0e42 {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    font-size: 18px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-md);
    z-index: 999;
}

.back-to-top-7b0e42.visible-1a3c9d {
    opacity: 1;
    visibility: visible;
}

.back-to-top-7b0e42:hover {
    background: var(--accent-color);
    transform: translateY(-3px);
}

/* ===================================
   响应式设计 - 平板设备
   =================================== */
@media (max-width: 1024px) {
    .hero-title-1655a0 {
        font-size: 44px;
    }

    .hero-subtitle-511371 {
        font-size: 18px;
    }

    .products-grid-96dfe3,
    .services-grid-e68c9c,
    .news-grid-ab428c,
    .reviews-grid-1fd5d9 {
        grid-template-columns: repeat(2, 1fr);
    }

    .cases-grid-5cfc90 {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-content-f17f70,
    .contact-content-710550 {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-image-cba8b3 {
        order: -1;
    }

    .footer-content-8dc4c2 {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===================================
   响应式设计 - 移动设备
   =================================== */
@media (max-width: 768px) {
    .header-content-f64501 {
        height: 70px;
    }

    .nav-menu-beef81 {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        gap: 4px;
        box-shadow: var(--shadow-md);
        transform: translateY(-150%);
        opacity: 0;
        transition: all var(--transition-fast);
    }

    .nav-menu-beef81.active {
        transform: translateY(0);
        opacity: 1;
    }

    .nav-link-e8da9b {
        padding: 14px 20px;
        border-radius: 8px;
    }

    .mobile-menu-btn-3ca7ab {
        display: block;
    }

    .hero-3cf821 {
        min-height: 100vh;
        padding: 100px 0 60px;
    }

    .hero-title-1655a0 {
        font-size: 32px;
        letter-spacing: 1px;
    }

    .hero-subtitle-511371 {
        font-size: 16px;
    }

    .hero-buttons-df427e {
        flex-direction: column;
        align-items: center;
    }

    .btn-fad208 {
        width: 100%;
        max-width: 280px;
    }

    .section-27e409 {
        padding: 70px 0;
    }

    .section-title-1adb49 {
        font-size: 28px;
    }

    .products-grid-96dfe3,
    .services-grid-e68c9c,
    .news-grid-ab428c,
    .reviews-grid-1fd5d9 {
        grid-template-columns: 1fr;
    }

    .cases-grid-5cfc90 {
        grid-template-columns: 1fr;
    }

    .about-stats-4ddcc4 {
        justify-content: space-around;
    }

    .stat-number-e4fc1d {
        font-size: 32px;
    }

    .contact-info-8477c8,
    .contact-form-wrapper-60b0eb {
        padding: 30px 20px;
    }

    .footer-content-8dc4c2 {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-brand-dcecb1 {
        padding-right: 0;
    }

    .back-to-top-7b0e42 {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
        font-size: 16px;
    }

    .hero-scroll-fe0996 {
        display: none;
    }
}

/* ===================================
   小屏幕设备优化
   =================================== */
@media (max-width: 480px) {
    .container-75ca1f {
        padding: 0 15px;
    }

    .hero-title-1655a0 {
        font-size: 26px;
    }

    .section-title-1adb49 {
        font-size: 24px;
    }

    .product-card-ad52ae,
    .service-card-c2d7c8,
    .news-card-c9ff82,
    .review-card-b415fe {
        padding: 20px;
    }

    .about-stats-4ddcc4 {
        flex-direction: column;
        gap: 24px;
    }

    .stat-item-d2a8d5 {
        display: flex;
        align-items: center;
        gap: 12px;
    }

    .stat-number-e4fc1d {
        font-size: 36px;
    }

    .stat-label-2df6da {
        font-size: 14px;
    }

    .faq-question-8a8db5 {
        padding: 20px;
        font-size: 15px;
    }

    .faq-answer-a5f6be p {
        padding: 20px;
    }
}

/* ===================================
   动画辅助类
   =================================== */
.fade-in-e2c031 {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in-e2c031.visible-1a3c9d {
    opacity: 1;
    transform: translateY(0);
}

/* 滚动显示动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-on-scroll-4b0d5c {
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
}