/* 基础样式 */
:root {
    --primary-color: #176BFF;
    --primary-dark: #0047AB;
    --secondary-color: #FF9900;
    --light-color: #f8f9fa;
    --dark-color: #232946;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --white: #ffffff;
    --gray: #6c757d;
    --light-gray: #e9ecef;
    --primary: #4ECDC4;
    --secondary: #FF6B6B;
    --accent: #F9C74F;
    --dark: #22223B;
    --bg: #F8F9FA;
    --radius: 8px;
    --shadow: 0 2px 12px rgba(0,0,0,0.08);
    --font-main: 'Source Han Sans SC', 'Roboto', 'Helvetica Neue', Arial, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
}

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

body {
    font-family: var(--font-main);
    line-height: 1.7;
    color: var(--dark);
    background-color: var(--bg);
    overflow-x: hidden;
    font-size: 16px;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.btn, .btn-outline, .btn-small, .cta-btn {
    min-width: 44px;
    min-height: 44px;
    font-size: 1rem;
    line-height: 1.2;
    box-sizing: border-box;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 4px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

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

.btn-outline {
    display: inline-block;
    padding: 10px 20px;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    border-radius: 4px;
    font-weight: 500;
    transition: all 0.3s ease;
}

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

.btn-small {
    display: inline-block;
    padding: 6px 12px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 3px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

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

section {
    padding: 60px 0;
}

h1, h2, h3, h4, h5, h6 {
    margin-bottom: 1rem;
    font-weight: 600;
    line-height: 1.2;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }

/* 导航栏样式 */
.navbar {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    padding: 15px 0;
    transition: all 0.3s ease;
    backdrop-filter: blur(8px);
}

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

.logo {
    display: flex;
    align-items: center;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--dark-color);
}

.logo img {
    height: 40px;
    margin-right: 10px;
}

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

.nav-menu li {
    margin-left: 30px;
}

.nav-menu li a {
    color: var(--dark-color);
    font-weight: 500;
    position: relative;
}

.nav-menu li a:hover {
    color: var(--primary-color);
}

.nav-menu li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    bottom: -5px;
    left: 0;
    transition: width 0.3s ease;
}

.nav-menu li a:hover::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: var(--dark-color);
    border-radius: 3px;
    transition: all 0.3s ease;
}

.nav-search {
    display: flex;
    align-items: center;
    margin-left: 24px;
    background: #f4f7fa;
    border-radius: 24px;
    padding: 2px 8px 2px 12px;
    box-shadow: 0 1px 4px #176bff11;
}

.nav-search input {
    border: none;
    background: transparent;
    outline: none;
    font-size: 1rem;
    padding: 6px 8px;
    width: 140px;
    color: var(--dark-color);
}

.nav-search button {
    background: none;
    border: none;
    color: var(--primary-color);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 0 6px;
    transition: color 0.2s;
}

.nav-search button:hover {
    color: var(--secondary-color);
}

/* 轮播图样式 */
.hero-slider {
    position: relative;
    height: 600px;
    overflow: hidden;
    margin-top: 70px;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1s ease;
}

.slide.active {
    opacity: 1;
}

.slide-bg-video {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    object-fit: cover;
    z-index: 0;
    pointer-events: none;
    filter: brightness(0.82) contrast(1.08);
}

.slide-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--white);
    width: 80%;
    max-width: 800px;
    z-index: 2;
}

.slide-content h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.slide-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.slide.active::after {
    content: '';
    position: absolute;
    left: 0; top: 0; width: 100%; height: 100%;
    z-index: 1;
    pointer-events: none;
    background: linear-gradient(180deg,rgba(30,107,255,0.18) 0%,rgba(0,0,0,0.32) 100%);
}

.slider-controls {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 15px;
}

.slider-controls button {
    background-color: rgba(255, 255, 255, 0.3);
    border: none;
    color: var(--white);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slider-controls button:hover {
    background-color: rgba(255, 255, 255, 0.6);
}

/* 公司简介样式 */
.company-intro {
    text-align: center;
    background-color: var(--light-gray);
}

.company-intro h2 {
    margin-bottom: 18px;
    color: var(--primary-dark);
    font-size: 2.1rem;
    letter-spacing: 0.04em;
}

.company-intro-text {
    font-size: 1.15rem;
    line-height: 2;
    color: var(--dark-color);
    max-width: 820px;
    margin: 0 auto 32px auto;
    background: linear-gradient(90deg, #f8faff 60%, #fff 100%);
    border-radius: 12px;
    padding: 28px 28px 18px 28px;
    box-shadow: 0 2px 12px #176bff0a;
    text-align: left;
    letter-spacing: 0.02em;
}

.intro-key {
    color: var(--primary-color);
    font-weight: 700;
    background: linear-gradient(90deg, #176bff11 60%, #ff990011 100%);
    border-radius: 6px;
    padding: 2px 8px;
    margin: 0 2px;
    font-size: 1.08em;
    display: inline-block;
}

.company-intro p {
    max-width: 800px;
    margin: 0 auto 30px;
    font-size: 1.1rem;
}

/* 产品展示样式 */
.featured-products {
    background-color: var(--white);
    text-align: center;
}

.featured-products h2 {
    margin-bottom: 40px;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.product-card, .news-item {
    background-color: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 6px 24px rgba(23,107,255,0.08), 0 1.5px 6px rgba(255,153,0,0.06);
    transition: all 0.35s cubic-bezier(.4,2,.6,1);
    padding: 32px 24px 28px 24px;
    margin: 18px 0;
    text-align: left;
    position: relative;
    min-height: 320px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    gap: 12px;
}

.product-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 18px;
    box-shadow: 0 2px 8px rgba(23,107,255,0.08);
}

.product-card h3, .news-content h3 {
    margin-bottom: 8px;
    color: var(--dark-color);
    font-size: 1.3rem;
    font-weight: 700;
}

.product-keydata, .news-keydata {
    color: var(--secondary-color);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: 1px;
}

.product-card p, .news-excerpt {
    color: var(--gray);
    margin-bottom: 10px;
    font-size: 1rem;
    line-height: 1.7;
}

.product-preview, .news-preview {
    display: none;
    background: linear-gradient(135deg, #f8faff 60%, #fff 100%);
    border-radius: 8px;
    padding: 18px 16px;
    color: var(--primary-dark);
    font-size: 1rem;
    box-shadow: 0 2px 8px rgba(23,107,255,0.06);
    position: absolute;
    left: 24px;
    right: 24px;
    top: 60px;
    z-index: 10;
    min-height: 60px;
    animation: fadeInUp 0.4s;
}

.product-card:hover .product-preview,
.news-item:hover .news-preview {
    display: block;
}

.products-grid, .news-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px 28px;
    margin-bottom: 40px;
}

/* 最新资讯样式 */
.latest-news {
    background-color: var(--light-gray);
}

.latest-news h2 {
    text-align: center;
    margin-bottom: 40px;
}

.news-list {
    max-width: 800px;
    margin: 0 auto 40px;
}

.news-item {
    background-color: var(--white);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.news-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.news-content h3 {
    margin-bottom: 10px;
}

.news-excerpt {
    color: var(--secondary-color);
    margin-bottom: 15px;
}

.news-meta {
    display: flex;
    justify-content: space-between;
    color: var(--gray);
    font-size: 0.9rem;
}

.price-tag {
    color: var(--primary-color);
    font-weight: 600;
}

/* 页脚样式 */
.site-footer {
    background: var(--bg);
    color: var(--dark);
    padding: 60px 0 0;
    box-shadow: 0 -2px 24px rgba(34,34,59,0.06);
}

.footer-columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4 {
    color: var(--dark);
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 50px;
    height: 2px;
    background-color: var(--secondary);
}

.footer-col p,
.footer-col ul li a,
.footer-col address p {
    color: var(--dark);
    opacity: 0.92;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    color: var(--dark);
}

.footer-col ul li a:hover {
    color: var(--secondary);
}

.footer-col address p {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

.footer-col address i {
    margin-right: 10px;
    color: var(--secondary);
    width: 20px;
    text-align: center;
}

.footer-bottom {
    border-top: 1px solid #e0e0e0;
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--dark);
    background: none;
}

.footer-bottom a {
    color: var(--dark) !important;
    font-size: 0.95em;
    transition: color 0.2s;
}

.footer-bottom a:hover {
    color: var(--primary) !important;
}

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

.social-links a {
    color: var(--white);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

/* 支付弹窗样式 */
.payment-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 2000;
    overflow-y: auto;
}

.modal-content {
    background-color: var(--white);
    margin: 50px auto;
    padding: 30px;
    border-radius: 8px;
    width: 90%;
    max-width: 600px;
    position: relative;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.3);
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 1.5rem;
    color: var(--gray);
    cursor: pointer;
    transition: all 0.3s ease;
}

.close-modal:hover {
    color: var(--dark-color);
    transform: rotate(90deg);
}

.modal-content h3 {
    text-align: center;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.article-preview {
    background-color: var(--light-gray);
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 20px;
    max-height: 300px;
    overflow-y: auto;
}

.payment-options {
    text-align: center;
}

.payment-options p {
    font-size: 1.2rem;
    margin-bottom: 20px;
}

#articlePrice {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.4rem;
}

.qrcodes {
    display: flex;
    justify-content: space-around;
    margin-bottom: 20px;
}

.qrcode {
    text-align: center;
}

.qrcode img {
    width: 150px;
    height: 150px;
    margin-bottom: 10px;
    border: 1px solid var(--light-gray);
    padding: 5px;
    background-color: var(--white);
}

.payment-notice {
    color: var(--secondary-color);
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero-slider {
        height: 500px;
    }
    
    .slide-content h1 {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    html, body {
        font-size: 15px;
        overflow-x: hidden;
    }
    .container {
        padding: 0 6px;
    }
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 80%;
        height: calc(100vh - 70px);
        background-color: var(--white);
        flex-direction: column;
        align-items: center;
        padding: 40px 0;
        transition: all 0.5s ease;
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 15px 0;
    }
    
    .hero-slider {
        height: 400px;
        margin-top: 70px;
    }
    
    .slide-content h1 {
        font-size: 1.2rem;
    }
    
    .slide-content p {
        font-size: 0.95rem;
    }
    
    section {
        padding: 40px 0;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .social-links {
        margin-top: 15px;
    }
    
    .product-card, .news-item {
        padding: 14px 4px 12px 4px;
        min-height: 180px;
    }
    
    .product-media .product-img {
        height: 120px;
    }
    
    .products-grid, .news-list {
        grid-template-columns: 1fr;
        gap: 18px 0;
    }
    
    .nav-search { display: none; }
    
    .btn, .btn-outline, .btn-small {
        font-size: 0.95rem;
        padding: 10px 12px;
    }
    
    .products-container {
        grid-template-columns: 1fr;
        gap: 18px 0;
        padding: 8px 0;
    }
    
    .product-detail {
        margin: 0 auto 18px auto;
        width: 100%;
        box-sizing: border-box;
    }
    
    .product-main {
        flex-direction: row;
        align-items: flex-start;
        gap: 10px;
        padding: 14px 6px 18px 6px;
    }
    
    .product-icon {
        margin-bottom: 0;
        margin-right: 10px;
        min-width: 40px;
        max-width: 48px;
        font-size: 2.2em;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .product-icon i, .product-icon img {
        font-size: 2.2em !important;
        width: 40px !important;
        height: 40px !important;
    }
    
    .product-info {
        width: auto;
    }
}

@media (max-width: 576px) {
    .hero-slider {
        height: 350px;
    }
    
    .slide-content h1 {
        font-size: 1.8rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .qrcodes {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }
}

/* 产品页面样式 */
.page-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    padding: 90px 0 40px 0;
    text-align: center;
    margin-bottom: 2px;
    min-height: 250px;
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    animation: fadeInDown 0.8s ease;
}

.page-header p {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.2rem;
    opacity: 0.9;
    animation: fadeInUp 0.8s ease;
}

.product-categories {
    margin-bottom: 2px;
    margin-top: 0;
}

.category-tabs {
    display: flex;
    justify-content: center;
    gap: 2px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 24px;
    border: none;
    background: var(--light-gray);
    color: var(--dark-color);
    border-radius: 30px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.tab-btn.active {
    background: var(--primary-color);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(30, 144, 255, 0.3);
}

.product-list {
    padding: 2px 0;
}

.products-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    padding: 20px 0;
}

.product-detail {
    background: var(--white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.product-detail:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.product-main {
    padding: 30px;
}

.product-info h2 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 15px;
}

.product-intro {
    color: var(--secondary-color);
    line-height: 1.8;
    margin-bottom: 12px;
}

.product-example {
    background: #f8faff;
    border-left: 4px solid var(--primary-color);
    padding: 10px 16px;
    margin: 8px 0 12px 0;
    color: #2a3a4a;
    font-size: 1rem;
    border-radius: 6px;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 资讯列表样式 */
.news-archive {
    padding: 60px 0;
    background-color: var(--light-gray);
}

.news-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.news-article {
    background: var(--white);
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.news-article:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.article-header {
    margin-bottom: 25px;
}

.article-header h2 {
    font-size: 1.8rem;
    color: var(--dark-color);
    margin-bottom: 15px;
    line-height: 1.4;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    color: var(--secondary-color);
    font-size: 0.95rem;
}

.article-meta .date {
    display: flex;
    align-items: center;
    gap: 8px;
}

.article-meta .price {
    color: var(--primary-color);
    font-weight: 600;
}

.article-preview-content {
    position: relative;
    margin-bottom: 25px;
    line-height: 1.8;
    color: var(--secondary-color);
}

.article-preview-content p {
    margin-bottom: 15px;
}

.preview-mask {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100px;
    background: linear-gradient(to bottom, transparent, var(--white));
    pointer-events: none;
}

.preview-notice {
    text-align: center;
    color: var(--primary-color);
    font-weight: 500;
    margin-top: 20px;
}

.read-more {
    width: 100%;
    padding: 12px 0;
    font-size: 1.1rem;
    text-align: center;
}

.ai-banner-effect {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    pointer-events: none;
    z-index: 3;
    overflow: hidden;
}

/* 粒子/数据流动画 */
.ai-banner-effect .particle {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    opacity: 0.85;
    animation: ai-particle-move 7s linear infinite;
    filter: blur(1px);
}

@keyframes ai-particle-move {
    0% { transform: translateY(0) scale(1); opacity: 0.7; }
    80% { opacity: 1; }
    100% { transform: translateY(-600px) scale(0.5); opacity: 0; }
}

.product-media {
    display: block;
    margin-bottom: 18px;
    position: relative;
}
.product-media .product-img {
    width: 100%;
    min-width: unset;
    max-width: unset;
    height: 200px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(23,107,255,0.08);
    object-fit: cover;
    transition: transform 0.3s;
}
.product-media .product-demo {
    width: 48%;
    min-width: 120px;
    max-width: 180px;
    border-radius: 8px;
    object-fit: cover;
    box-shadow: 0 2px 8px rgba(255,153,0,0.10);
    transition: transform 0.3s;
}
.product-media .product-demo:hover,
.product-media .product-img:hover {
    transform: scale(1.08);
    z-index: 2;
}
.product-card h3 i {
    color: var(--primary-color);
    margin-right: 8px;
    font-size: 1.3em;
    vertical-align: middle;
    filter: drop-shadow(0 2px 4px #176bff22);
}

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

/* 产品卡片图标样式 */
.product-icon {
    flex-shrink: 0;
    margin-right: 32px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
}
.product-icon img {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    box-shadow: 0 2px 12px rgba(23,107,255,0.10);
    background: #f4f8ff;
    object-fit: contain;
}

/* 产品卡片内容分点展示 */
.product-points {
    margin: 0 0 16px 0;
    padding-left: 22px;
    list-style: disc;
    color: #444;
    font-size: 1.08rem;
    line-height: 1.7;
}
.product-points li {
    margin-bottom: 8px;
}

/* 产品卡片主内容横向排列 */
.product-main {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

/* 产品卡片淡入动画 */
.product-detail {
    opacity: 0;
    transform: translateY(40px);
    animation: fadeInUp 0.8s forwards;
    animation-delay: 0.1s;
}

/* 咨询按钮美化 */
.btn {
    background: linear-gradient(90deg, #4f8cff 0%, #6ed6ff 100%);
    color: #fff;
    border: none;
    border-radius: 24px;
    padding: 10px 32px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s, transform 0.2s;
    box-shadow: 0 2px 8px rgba(79,140,255,0.15);
}
.btn:hover {
    background: linear-gradient(90deg, #6ed6ff 0%, #4f8cff 100%);
    transform: translateY(-2px) scale(1.04);
}

.product-icon i {
    font-size: 64px;
    color: var(--primary-color, #3a7afe);
    display: block;
    margin: 0 auto;
    filter: drop-shadow(0 2px 8px #176bff22);
}

h1, h2, h3, h4 {
    font-family: var(--font-main);
    font-weight: 700;
    color: var(--dark);
}

.btn, .btn-primary, .btn-secondary, .btn-small, .btn-outline {
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    font-family: var(--font-main);
    font-weight: 600;
    transition: background 0.2s, color 0.2s;
}

.btn-primary {
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    color: #fff;
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(45deg, var(--secondary), var(--primary));
}

.btn-secondary {
    background: rgba(255,255,255,0.1);
    color: var(--dark);
    border: 1px solid var(--primary);
}

.btn-secondary:hover {
    background: var(--primary);
    color: #fff;
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1.5px solid var(--primary);
}

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

.btn-small {
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 4px 16px;
    font-size: 0.98em;
}

.btn-small:hover {
    background: var(--secondary);
}

.highlight {
    color: var(--primary);
    font-weight: 600;
}
.highlight-yellow { color: var(--accent); }
.highlight-green { color: var(--primary); }
.highlight-red { color: var(--secondary); }

.tag {
    border-radius: 20px;
    font-size: 0.95em;
    font-weight: 500;
    background: var(--primary);
    color: #fff;
    padding: 2px 8px;
}

.product-card, .news-item, .modal-content {
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    background: #fff;
}

.navbar, .site-footer {
    border-radius: 0 0 var(--radius) var(--radius);
    box-shadow: var(--shadow);
    background: #fff;
}

input, textarea {
    border-radius: var(--radius);
    border: 1px solid #e0e0e0;
    font-family: var(--font-main);
}

/* 响应式优化 */
@media (max-width: 992px) {
    body { font-size: 15px; }
}
@media (max-width: 768px) {
    body { font-size: 14px; }
}

.gradient-text {
    color: #fff;
    text-shadow: 0 2px 12px rgba(0,0,0,0.18), 0 0 8px rgba(255,255,255,0.18);
}

.product-detail-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 18px auto 0 auto;
    text-align: center;
    width: 100%;
    height: 44px;
    box-sizing: border-box;
}