/* ===================================
   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-d18db8 {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===================================
   按钮样式
   =================================== */
.btn-826cde {
    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-8a2606 {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.btn-primary-8a2606:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary-34e443 {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-secondary-34e443:hover {
    background: var(--primary-color);
    color: var(--white);
}

.btn-outline-20627c {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
    padding: 12px 28px;
}

.btn-outline-20627c:hover {
    background: var(--primary-color);
    color: var(--white);
}

.btn-block-f2b421 {
    width: 100%;
}

/* ===================================
   顶部导航栏
   =================================== */
.header-3f2602 {
    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-3f2602.scrolled {
    box-shadow: var(--shadow-md);
}

.header-content-5025a7 {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo-12ab65 {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img-2ee197 {
    height: 45px;
    width: auto;
}

.brand-name-8b6af8 {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-menu-574062 {
    display: flex;
    gap: 8px;
}

.nav-link-8f9ced {
    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-8f9ced::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-8f9ced:hover,
.nav-link-8f9ced.active {
    color: var(--primary-color);
    background: rgba(44, 62, 80, 0.05);
}

.nav-link-8f9ced:hover::after,
.nav-link-8f9ced.active::after {
    width: 20px;
}

.mobile-menu-btn-b9c742 {
    display: none;
    font-size: 24px;
    color: var(--primary-color);
    cursor: pointer;
    padding: 8px;
}

/* ===================================
   首页横幅区域
   =================================== */
.hero-e70c7c {
    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-e70c7c::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-2901ae {
    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-113a77 {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 0 20px;
    max-width: 900px;
}

.hero-title-17046d {
    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-0dcc47 {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 40px;
    line-height: 1.9;
}

.hero-buttons-f3f48a {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-scroll-ce79f2 {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.hero-scroll-ce79f2 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-ce79f2 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-19f4f6 {
    padding: 100px 0;
}

.section-header-6d78bc {
    text-align: center;
    margin-bottom: 60px;
}

.section-header-left-441576 {
    text-align: left;
    margin-bottom: 30px;
}

.section-title-b62599 {
    font-size: 40px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 16px;
    position: relative;
    display: inline-block;
}

.section-title-b62599::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--accent-color);
}

.section-header-left-441576 .section-title-b62599::after {
    left: 0;
    transform: none;
}

.section-subtitle-bb9be6 {
    font-size: 18px;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
}

.section-header-left-441576 .section-subtitle-bb9be6 {
    margin: 0;
}

/* ===================================
   产品展示区域
   =================================== */
.products-section-5b4cdc {
    background: var(--bg-light);
}

.products-grid-70bfaa {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.product-card-89a310 {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.product-card-89a310:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.product-image-d648d0 {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.product-image-d648d0 img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.product-card-89a310:hover .product-image-d648d0 img {
    transform: scale(1.08);
}

.product-badge-add040 {
    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-352001 {
    padding: 24px;
}

.product-title-66863f {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 12px;
}

.product-desc-788517 {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 16px;
}

.product-link-b518fd {
    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-b518fd:hover {
    color: var(--accent-color);
    gap: 12px;
}

/* ===================================
   服务优势区域
   =================================== */
.services-section-372801 {
    background: var(--white);
}

.services-grid-3a6a7d {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card-d56590 {
    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-d56590::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-d56590:hover::before {
    transform: scaleX(1);
}

.service-card-d56590:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.service-icon-f486ac {
    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-d56590:hover .service-icon-f486ac {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    transform: rotateY(180deg);
}

.service-title-afc6ed {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 12px;
}

.service-desc-0a7d59 {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.7;
}

/* ===================================
   关于我们区域
   =================================== */
.about-section-8a6fa0 {
    background: var(--bg-light);
}

.about-content-657a2d {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: center;
}

.about-image-efa575 {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-image-efa575 img {
    width: 100%;
    height: auto;
    display: block;
}

.about-text-d03e71 {
    padding: 20px 0;
}

.about-intro-6ad891 {
    font-size: 18px;
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: 20px;
}

.about-detail-988eaf {
    margin-bottom: 30px;
}

.about-detail-988eaf p {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.9;
    margin-bottom: 16px;
}

.about-stats-366f57 {
    display: flex;
    gap: 40px;
}

.stat-item-469c03 {
    text-align: center;
}

.stat-number-03c975 {
    display: block;
    font-size: 42px;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label-186cdf {
    font-size: 14px;
    color: var(--text-gray);
}

/* ===================================
   产品案例区域
   =================================== */
.cases-section-6696d2 {
    background: var(--white);
}

.cases-grid-2769a8 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.case-card-965b40 {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    aspect-ratio: 1;
    cursor: pointer;
}

.case-image-3cf616 {
    width: 100%;
    height: 100%;
    position: relative;
}

.case-image-3cf616 img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.case-card-965b40:hover .case-image-3cf616 img {
    transform: scale(1.1);
}

.case-overlay-feae46 {
    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-965b40:hover .case-overlay-feae46 {
    opacity: 1;
}

.case-info-01b4c0 h4 {
    color: var(--white);
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
}

.case-info-01b4c0 p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

/* ===================================
   新闻资讯区域
   =================================== */
.news-section-3a4c96 {
    background: var(--bg-light);
}

.news-grid-9dcfcd {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.news-card-f5f51f {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.news-card-f5f51f:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.news-image-965d95 {
    height: 200px;
    overflow: hidden;
}

.news-image-965d95 img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.news-card-f5f51f:hover .news-image-965d95 img {
    transform: scale(1.08);
}

.news-content-8131a5 {
    padding: 24px;
}

.news-meta-14fb0f {
    display: flex;
    gap: 20px;
    margin-bottom: 12px;
    font-size: 13px;
    color: var(--text-light);
}

.news-meta-14fb0f i {
    margin-right: 4px;
}

.news-title-21f95d {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 12px;
    line-height: 1.4;
    transition: color var(--transition-fast);
}

.news-card-f5f51f:hover .news-title-21f95d {
    color: var(--accent-color);
}

.news-summary-eb274a {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 16px;
}

.news-link-e3be17 {
    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-e3be17:hover {
    color: var(--accent-color);
    gap: 12px;
}

.news-more-c7190c {
    text-align: center;
    margin-top: 50px;
}

/* ===================================
   常见问题区域
   =================================== */
.faq-section-26db7c {
    background: var(--white);
}

.faq-list-f6b49f {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item-a34d66 {
    margin-bottom: 16px;
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid rgba(44, 62, 80, 0.1);
}

.faq-question-022416 {
    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-022416:hover {
    background: rgba(44, 62, 80, 0.05);
    color: var(--accent-color);
}

.faq-question-022416 i {
    font-size: 18px;
    transition: transform var(--transition-fast);
}

.faq-item-a34d66.active .faq-question-022416 i {
    transform: rotate(45deg);
}

.faq-answer-ad8a08 {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow), padding var(--transition-slow);
}

.faq-item-a34d66.active .faq-answer-ad8a08 {
    max-height: 300px;
}

.faq-answer-ad8a08 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-199506 {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    padding: 100px 0;
}

.reviews-section-199506 .section-title-b62599 {
    color: var(--white);
}

.reviews-section-199506 .section-subtitle-bb9be6 {
    color: rgba(255, 255, 255, 0.7);
}

.reviews-grid-3526b6 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.review-card-e05ae1 {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-fast);
}

.review-card-e05ae1:hover {
    transform: translateY(-5px);
}

.review-header-bffa18 {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.reviewer-avatar-3d69c0 {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    object-fit: cover;
    background: var(--primary-color);
}

.reviewer-name-0fa095 {
    font-size: 17px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 4px;
}

.reviewer-company-e6acc8 {
    font-size: 13px;
    color: var(--text-gray);
}

.review-rating-2535ba {
    margin-bottom: 16px;
}

.review-rating-2535ba i {
    color: var(--accent-color);
    font-size: 14px;
    margin-right: 2px;
}

.review-content-1b5da3 p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.8;
    font-style: italic;
    position: relative;
    padding-left: 20px;
}

.review-content-1b5da3 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-0b7abd {
    background: var(--bg-light);
}

.contact-content-86e3e8 {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
}

.contact-info-71ef73 {
    padding: 40px;
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.contact-item-18e4ec {
    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-18e4ec:last-of-type {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.contact-icon-c89df0 {
    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-17d5fa h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 6px;
}

.contact-text-17d5fa p {
    font-size: 14px;
    color: var(--text-gray);
}

.contact-social-6ccc07 {
    display: flex;
    gap: 12px;
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid rgba(44, 62, 80, 0.08);
}

.social-link-236b42 {
    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-236b42:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-3px);
}

.contact-form-wrapper-c36baa {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-md);
}

.contact-form-b65eab .form-group-347252 {
    margin-bottom: 20px;
}

.contact-form-b65eab input,
.contact-form-b65eab select,
.contact-form-b65eab 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-b65eab input:focus,
.contact-form-b65eab select:focus,
.contact-form-b65eab textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(44, 62, 80, 0.1);
}

.contact-form-b65eab textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form-b65eab select {
    cursor: pointer;
    appearance: none;
    background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3-7f0198.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-b257a6 {
    background: white;
    color: #2d3748;
    padding: 30px 0;
}
.flink-header-9d74dc{
    font-size: 20px;
    font-weight: 600;
    padding-bottom: 10px;
}
.flink-section-b257a6 li{
    list-style: none;
    display: inline;
    padding-right: 20px;
}
.flink-section-b257a6 a{
    color: #718096;
    text-decoration: none;
}

/* ===================================
   页脚区域
   =================================== */
.footer-6f1c11 {
    background: var(--bg-dark);
    padding: 70px 0 30px;
}

.footer-content-d26591 {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 50px;
}

.footer-brand-559921 {
    padding-right: 20px;
}

.footer-logo-0348da {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-logo-0348da img {
    height: 36px;
    width: auto;
}

.footer-logo-0348da span {
    font-size: 20px;
    font-weight: 700;
    color: var(--white);
}

.footer-desc-974a6d {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.8;
}

.footer-links-7c7960 h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 24px;
    position: relative;
}

.footer-links-7c7960 h4::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--accent-color);
}

.footer-links-7c7960 ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links-7c7960 a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    transition: all var(--transition-fast);
}

.footer-links-7c7960 a:hover {
    color: var(--accent-color);
    padding-left: 5px;
}

.footer-bottom-c9f550 {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom-c9f550 p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 6px;
}

/* ===================================
   返回顶部按钮
   =================================== */
.back-to-top-b645bc {
    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-b645bc.visible-b408d3 {
    opacity: 1;
    visibility: visible;
}

.back-to-top-b645bc:hover {
    background: var(--accent-color);
    transform: translateY(-3px);
}

/* ===================================
   响应式设计 - 平板设备
   =================================== */
@media (max-width: 1024px) {
    .hero-title-17046d {
        font-size: 44px;
    }

    .hero-subtitle-0dcc47 {
        font-size: 18px;
    }

    .products-grid-70bfaa,
    .services-grid-3a6a7d,
    .news-grid-9dcfcd,
    .reviews-grid-3526b6 {
        grid-template-columns: repeat(2, 1fr);
    }

    .cases-grid-2769a8 {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-content-657a2d,
    .contact-content-86e3e8 {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-image-efa575 {
        order: -1;
    }

    .footer-content-d26591 {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===================================
   响应式设计 - 移动设备
   =================================== */
@media (max-width: 768px) {
    .header-content-5025a7 {
        height: 70px;
    }

    .nav-menu-574062 {
        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-574062.active {
        transform: translateY(0);
        opacity: 1;
    }

    .nav-link-8f9ced {
        padding: 14px 20px;
        border-radius: 8px;
    }

    .mobile-menu-btn-b9c742 {
        display: block;
    }

    .hero-e70c7c {
        min-height: 100vh;
        padding: 100px 0 60px;
    }

    .hero-title-17046d {
        font-size: 32px;
        letter-spacing: 1px;
    }

    .hero-subtitle-0dcc47 {
        font-size: 16px;
    }

    .hero-buttons-f3f48a {
        flex-direction: column;
        align-items: center;
    }

    .btn-826cde {
        width: 100%;
        max-width: 280px;
    }

    .section-19f4f6 {
        padding: 70px 0;
    }

    .section-title-b62599 {
        font-size: 28px;
    }

    .products-grid-70bfaa,
    .services-grid-3a6a7d,
    .news-grid-9dcfcd,
    .reviews-grid-3526b6 {
        grid-template-columns: 1fr;
    }

    .cases-grid-2769a8 {
        grid-template-columns: 1fr;
    }

    .about-stats-366f57 {
        justify-content: space-around;
    }

    .stat-number-03c975 {
        font-size: 32px;
    }

    .contact-info-71ef73,
    .contact-form-wrapper-c36baa {
        padding: 30px 20px;
    }

    .footer-content-d26591 {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-brand-559921 {
        padding-right: 0;
    }

    .back-to-top-b645bc {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
        font-size: 16px;
    }

    .hero-scroll-ce79f2 {
        display: none;
    }
}

/* ===================================
   小屏幕设备优化
   =================================== */
@media (max-width: 480px) {
    .container-d18db8 {
        padding: 0 15px;
    }

    .hero-title-17046d {
        font-size: 26px;
    }

    .section-title-b62599 {
        font-size: 24px;
    }

    .product-card-89a310,
    .service-card-d56590,
    .news-card-f5f51f,
    .review-card-e05ae1 {
        padding: 20px;
    }

    .about-stats-366f57 {
        flex-direction: column;
        gap: 24px;
    }

    .stat-item-469c03 {
        display: flex;
        align-items: center;
        gap: 12px;
    }

    .stat-number-03c975 {
        font-size: 36px;
    }

    .stat-label-186cdf {
        font-size: 14px;
    }

    .faq-question-022416 {
        padding: 20px;
        font-size: 15px;
    }

    .faq-answer-ad8a08 p {
        padding: 20px;
    }
}

/* ===================================
   动画辅助类
   =================================== */
.fade-in-e9bea2 {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in-e9bea2.visible-b408d3 {
    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-c8e68b {
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
}