/* 全局基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
    color: #1a1a2e;
    transition: background 0.3s, color 0.3s;
    overflow-x: hidden;
}

body.dark-mode {
    background: linear-gradient(135deg, #0d0d1a 0%, #1a1a2e 100%);
    color: #e0e0e0;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

/* 容器 */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 按钮通用 */
.btn {
    display: inline-block;
    padding: 14px 34px;
    border-radius: 50px;
    font-weight: 700;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: none;
    font-size: 16px;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: linear-gradient(135deg, #e94560, #ff6b6b, #e94560);
    background-size: 200% 200%;
    color: #fff;
    box-shadow: 0 4px 20px rgba(233, 69, 96, 0.4);
    animation: gradientShift 3s ease infinite;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.btn-primary:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 8px 30px rgba(233, 69, 96, 0.6);
}

.btn-outline {
    background: transparent;
    border: 2px solid #e94560;
    color: #e94560;
    backdrop-filter: blur(4px);
}

.btn-outline:hover {
    background: linear-gradient(135deg, #e94560, #ff6b6b);
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(233, 69, 96, 0.4);
}

/* 区块通用 */
.section {
    padding: 100px 0;
    position: relative;
}

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

.section-title h2 {
    font-size: 40px;
    font-weight: 800;
    margin-bottom: 18px;
    position: relative;
    display: inline-block;
    background: linear-gradient(135deg, #1a1a2e, #e94560);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

body.dark-mode .section-title h2 {
    background: linear-gradient(135deg, #e0e0e0, #e94560);
    -webkit-background-clip: text;
    background-clip: text;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 5px;
    background: linear-gradient(135deg, #e94560, #ff6b6b, #e94560);
    border-radius: 3px;
    animation: linePulse 2s ease-in-out infinite;
}

@keyframes linePulse {
    0%, 100% { width: 80px; opacity: 1; }
    50% { width: 100px; opacity: 0.7; }
}

.section-title p {
    font-size: 17px;
    color: #888;
    max-width: 650px;
    margin: 0 auto;
    line-height: 1.6;
}

body.dark-mode .section-title p {
    color: #aaa;
}

/* 卡片通用 */
.card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 35px;
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

body.dark-mode .card {
    background: rgba(26, 26, 46, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 255, 255, 0.05);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.15);
}

body.dark-mode .card:hover {
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.5);
}

/* 玻璃效果 */
.glass {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

body.dark-mode .glass {
    background: rgba(26, 26, 46, 0.6);
    border-color: rgba(255, 255, 255, 0.08);
}

/* 网格 */
.grid {
    display: grid;
    gap: 30px;
}

.flex {
    display: flex;
    flex-wrap: wrap;
    gap: 25px;
}

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

.mt-20 { margin-top: 20px; }
.mb-20 { margin-bottom: 20px; }

/* 响应式断点 */
@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }
    .section-title h2 {
        font-size: 30px;
    }
    .container {
        padding: 0 15px;
    }
}

/* 头部导航 */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 20px 0;
    background: transparent;
}

header.scrolled {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    padding: 10px 0;
    border-bottom: 1px solid rgba(233, 69, 96, 0.1);
}

body.dark-mode header.scrolled {
    background: rgba(13, 13, 26, 0.92);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
    border-bottom-color: rgba(233, 69, 96, 0.2);
}

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

.logo {
    font-size: 28px;
    font-weight: 900;
    background: linear-gradient(135deg, #e94560, #ff6b6b, #e94560);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 3s ease infinite;
    position: relative;
}

.logo span {
    font-weight: 300;
    font-size: 14px;
    background: linear-gradient(135deg, #888, #aaa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    margin-top: -2px;
    letter-spacing: 2px;
}

.nav {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav a {
    font-size: 15px;
    font-weight: 600;
    position: relative;
    padding: 6px 0;
    transition: color 0.3s;
    color: #1a1a2e;
}

body.dark-mode .nav a {
    color: #e0e0e0;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(135deg, #e94560, #ff6b6b);
    border-radius: 2px;
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav a:hover,
.nav a.active {
    color: #e94560;
}

.nav a:hover::after,
.nav a.active::after {
    width: 100%;
}

/* 移动端菜单按钮 */
.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 6px;
    padding: 5px;
    background: none;
    border: none;
    z-index: 1001;
}

.nav-toggle span {
    width: 30px;
    height: 3px;
    background: #1a1a2e;
    border-radius: 3px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body.dark-mode .nav-toggle span {
    background: #e0e0e0;
}

/* 暗黑模式切换 */
.dark-toggle {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 22px;
    padding: 8px;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    color: #1a1a2e;
    border-radius: 50%;
    background: rgba(233, 69, 96, 0.1);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

body.dark-mode .dark-toggle {
    color: #e0e0e0;
    background: rgba(255, 255, 255, 0.1);
}

.dark-toggle:hover {
    transform: rotate(30deg) scale(1.1);
}

/* 移动端导航响应式 */
@media (max-width: 992px) {
    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 300px;
        height: 100vh;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(30px);
        -webkit-backdrop-filter: blur(30px);
        flex-direction: column;
        padding: 100px 40px 40px;
        box-shadow: -10px 0 50px rgba(0, 0, 0, 0.15);
        transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        gap: 20px;
        align-items: flex-start;
        z-index: 999;
        border-left: 1px solid rgba(233, 69, 96, 0.1);
    }

    body.dark-mode .nav {
        background: rgba(26, 26, 46, 0.98);
        backdrop-filter: blur(30px);
        -webkit-backdrop-filter: blur(30px);
        border-left-color: rgba(233, 69, 96, 0.2);
    }

    .nav.open {
        right: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
        background: #e94560;
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
        transform: scaleX(0);
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
        background: #e94560;
    }

    .nav a {
        font-size: 18px;
        padding: 10px 0;
    }
}

/* Hero 区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #0f0f23 0%, #1a1a2e 50%, #16213e 100%);
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 50%, rgba(233, 69, 96, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 70% 50%, rgba(255, 107, 107, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 50% 80%, rgba(233, 69, 96, 0.05) 0%, transparent 50%);
    animation: heroGlow 15s ease-in-out infinite;
}

@keyframes heroGlow {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(40px, -40px) scale(1.05); }
    66% { transform: translate(-30px, 20px) scale(0.95); }
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    padding: 140px 0 100px;
}

@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 50px;
        padding: 120px 0 80px;
    }
}

.hero-text h1 {
    font-size: 56px;
    font-weight: 900;
    line-height: 1.15;
    color: #fff;
    margin-bottom: 25px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero-text h1 span {
    background: linear-gradient(135deg, #e94560, #ff6b6b, #e94560);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 3s ease infinite;
}

.hero-text p {
    font-size: 19px;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.9;
    margin-bottom: 35px;
    max-width: 560px;
}

@media (max-width: 992px) {
    .hero-text h1 {
        font-size: 38px;
    }
    .hero-text p {
        margin: 0 auto 35px;
        font-size: 17px;
    }
}

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

@media (max-width: 992px) {
    .hero-btns {
        justify-content: center;
    }
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-card {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 28px;
    padding: 45px;
    width: 100%;
    max-width: 520px;
    text-align: center;
    position: relative;
    overflow: hidden;
    animation: floatCard 6s ease-in-out infinite;
}

@keyframes floatCard {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.hero-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 50% 50%, rgba(233, 69, 96, 0.1), transparent 60%);
    animation: cardGlow 8s ease-in-out infinite;
}

@keyframes cardGlow {
    0%, 100% { transform: rotate(0deg); }
    50% { transform: rotate(180deg); }
}

.hero-card svg {
    width: 100%;
    height: auto;
    max-height: 350px;
    position: relative;
    z-index: 1;
}

.hero-card .stat {
    display: flex;
    justify-content: space-around;
    margin-top: 25px;
    gap: 20px;
    position: relative;
    z-index: 1;
}

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

.hero-card .stat-item .num {
    font-size: 32px;
    font-weight: 800;
    color: #e94560;
    display: block;
    text-shadow: 0 0 20px rgba(233, 69, 96, 0.3);
}

.hero-card .stat-item .label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 4px;
}

.scroll-down {
    position: absolute;
    bottom: 35px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2.5s infinite;
    color: rgba(255, 255, 255, 0.4);
    font-size: 14px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    z-index: 2;
    transition: color 0.3s;
}

.scroll-down:hover {
    color: rgba(255, 255, 255, 0.8);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-12px); }
    60% { transform: translateY(-6px); }
}

/* 品牌介绍 */
.brand-intro {
    background: linear-gradient(135deg, #fff 0%, #f8f8f8 100%);
}

body.dark-mode .brand-intro {
    background: linear-gradient(135deg, #0d0d1a 0%, #111122 100%);
}

.brand-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

@media (max-width: 992px) {
    .brand-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

.brand-text h3 {
    font-size: 30px;
    margin-bottom: 25px;
    font-weight: 800;
    background: linear-gradient(135deg, #1a1a2e, #e94560);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

body.dark-mode .brand-text h3 {
    background: linear-gradient(135deg, #e0e0e0, #e94560);
    -webkit-background-clip: text;
    background-clip: text;
}

.brand-text p {
    line-height: 1.9;
    color: #666;
    margin-bottom: 18px;
    font-size: 15px;
}

body.dark-mode .brand-text p {
    color: #aaa;
}

.brand-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin-top: 35px;
}

.brand-stats .stat-card {
    text-align: center;
    padding: 25px;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 16px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(233, 69, 96, 0.1);
}

body.dark-mode .brand-stats .stat-card {
    background: rgba(26, 26, 46, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-color: rgba(233, 69, 96, 0.2);
}

.brand-stats .stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(233, 69, 96, 0.15);
}

.brand-stats .stat-card .num {
    font-size: 40px;
    font-weight: 800;
    color: #e94560;
    display: block;
}

.brand-stats .stat-card .label {
    font-size: 14px;
    color: #888;
    margin-top: 6px;
    font-weight: 500;
}

.brand-visual svg {
    width: 100%;
    height: auto;
    max-height: 420px;
    filter: drop-shadow(0 10px 30px rgba(233, 69, 96, 0.1));
}

/* 产品中心 */
.products {
    background: linear-gradient(135deg, #f8f8f8 0%, #eee 100%);
}

body.dark-mode .products {
    background: linear-gradient(135deg, #111122 0%, #1a1a2e 100%);
}

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

.product-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 20px;
    padding: 35px 30px;
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.06);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

body.dark-mode .product-card {
    background: rgba(26, 26, 46, 0.9);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-color: rgba(255, 255, 255, 0.05);
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(135deg, #e94560, #ff6b6b);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.12);
}

body.dark-mode .product-card:hover {
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.5);
}

.product-card svg {
    width: 90px;
    height: 90px;
    margin: 0 auto 25px;
    filter: drop-shadow(0 4px 10px rgba(233, 69, 96, 0.2));
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-card:hover svg {
    transform: scale(1.1) rotate(-5deg);
}

.product-card h4 {
    font-size: 22px;
    margin-bottom: 12px;
    font-weight: 700;
}

.product-card p {
    color: #888;
    line-height: 1.7;
    font-size: 14px;
}

body.dark-mode .product-card p {
    color: #aaa;
}

/* 服务支持 */
.services {
    background: linear-gradient(135deg, #fff 0%, #f8f8f8 100%);
}

body.dark-mode .services {
    background: linear-gradient(135deg, #0d0d1a 0%, #111122 100%);
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
    gap: 30px;
}

.service-card {
    background: rgba(248, 248, 248, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 30px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
    border: 1px solid rgba(233, 69, 96, 0.05);
}

body.dark-mode .service-card {
    background: rgba(26, 26, 46, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-color: rgba(233, 69, 96, 0.1);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(233, 69, 96, 0.12);
    background: rgba(255, 255, 255, 0.95);
}

body.dark-mode .service-card:hover {
    background: rgba(26, 26, 46, 0.95);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.service-card svg {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card:hover svg {
    transform: scale(1.15) rotate(5deg);
}

.service-card h4 {
    font-size: 20px;
    margin-bottom: 12px;
    font-weight: 700;
}

.service-card p {
    color: #888;
    font-size: 14px;
    line-height: 1.7;
}

body.dark-mode .service-card p {
    color: #aaa;
}

/* 案例展示 */
.cases {
    background: linear-gradient(135deg, #f8f8f8 0%, #eee 100%);
}

body.dark-mode .cases {
    background: linear-gradient(135deg, #111122 0%, #1a1a2e 100%);
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(330px, 1fr));
    gap: 30px;
}

.case-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.06);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

body.dark-mode .case-card {
    background: rgba(26, 26, 46, 0.9);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-color: rgba(255, 255, 255, 0.05);
}

.case-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.12);
}

body.dark-mode .case-card:hover {
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.5);
}

.case-card .case-img {
    height: 220px;
    background: linear-gradient(135deg, #1a1a2e, #16213e, #0f0f23);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.case-card .case-img::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(233, 69, 96, 0.1), transparent);
}

.case-card .case-img svg {
    width: 100%;
    height: 100%;
    position: relative;
    z-index: 1;
}

.case-card .case-body {
    padding: 25px;
}

.case-card .case-body h4 {
    font-size: 20px;
    margin-bottom: 10px;
    font-weight: 700;
}

.case-card .case-body p {
    color: #888;
    font-size: 14px;
    line-height: 1.7;
}

body.dark-mode .case-card .case-body p {
    color: #aaa;
}

/* 客户评价 */
.testimonials {
    background: linear-gradient(135deg, #fff 0%, #f8f8f8 100%);
}

body.dark-mode .testimonials {
    background: linear-gradient(135deg, #0d0d1a 0%, #111122 100%);
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(330px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background: rgba(248, 248, 248, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 30px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(233, 69, 96, 0.05);
}

body.dark-mode .testimonial-card {
    background: rgba(26, 26, 46, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-color: rgba(233, 69, 96, 0.1);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 60px rgba(233, 69, 96, 0.1);
    background: rgba(255, 255, 255, 0.95);
}

body.dark-mode .testimonial-card:hover {
    background: rgba(26, 26, 46, 0.95);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.testimonial-card .stars {
    color: #f5a623;
    margin-bottom: 12px;
    font-size: 20px;
    letter-spacing: 2px;
}

.testimonial-card p {
    color: #666;
    line-height: 1.8;
    font-style: italic;
    margin-bottom: 20px;
    font-size: 15px;
}

body.dark-mode .testimonial-card p {
    color: #aaa;
}

.testimonial-card .author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.testimonial-card .author .avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, #e94560, #ff6b6b);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 800;
    font-size: 20px;
    box-shadow: 0 4px 15px rgba(233, 69, 96, 0.3);
}

.testimonial-card .author .info .name {
    font-weight: 700;
    font-size: 16px;
}

.testimonial-card .author .info .role {
    font-size: 13px;
    color: #888;
}

/* 合作伙伴 */
.partners {
    background: linear-gradient(135deg, #f8f8f8 0%, #eee 100%);
    padding: 70px 0;
}

body.dark-mode .partners {
    background: linear-gradient(135deg, #111122 0%, #1a1a2e 100%);
}

.partner-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 50px;
    align-items: center;
}

.partner-item {
    opacity: 0.6;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    filter: grayscale(1);
}

.partner-item:hover {
    opacity: 1;
    filter: grayscale(0);
    transform: scale(1.05);
}

.partner-item svg {
    width: 140px;
    height: auto;
}

/* 新闻资讯 */
.news {
    background: linear-gradient(135deg, #fff 0%, #f8f8f8 100%);
}

body.dark-mode .news {
    background: linear-gradient(135deg, #0d0d1a 0%, #111122 100%);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(330px, 1fr));
    gap: 30px;
}

.news-card {
    background: rgba(248, 248, 248, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(233, 69, 96, 0.05);
}

body.dark-mode .news-card {
    background: rgba(26, 26, 46, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-color: rgba(233, 69, 96, 0.1);
}

.news-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    background: rgba(255, 255, 255, 0.95);
}

body.dark-mode .news-card:hover {
    background: rgba(26, 26, 46, 0.95);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.news-card .news-img {
    height: 200px;
    background: linear-gradient(135deg, #16213e, #0f0f23, #1a1a2e);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.news-card .news-img::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(233, 69, 96, 0.08), transparent);
}

.news-card .news-img svg {
    width: 100%;
    height: 100%;
    position: relative;
    z-index: 1;
}

.news-card .news-body {
    padding: 25px;
}

.news-card .news-body .date {
    font-size: 13px;
    color: #888;
    margin-bottom: 10px;
    font-weight: 500;
}

.news-card .news-body h4 {
    font-size: 18px;
    margin-bottom: 10px;
    font-weight: 700;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-card .news-body p {
    color: #888;
    font-size: 14px;
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 15px;
}

.news-card .news-body .read-more {
    color: #e94560;
    font-weight: 700;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.news-card .news-body .read-more:hover {
    gap: 12px;
}

/* 常见问题 */
.faq {
    background: linear-gradient(135deg, #f8f8f8 0%, #eee 100%);
}

body.dark-mode .faq {
    background: linear-gradient(135deg, #111122 0%, #1a1a2e 100%);
}

.faq-list {
    max-width: 850px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    padding: 25px 0;
    cursor: pointer;
    transition: all 0.3s;
}

body.dark-mode .faq-item {
    border-color: rgba(255, 255, 255, 0.08);
}

.faq-item:first-child {
    border-top: 1px solid rgba(0, 0, 0, 0.08);
}

body.dark-mode .faq-item:first-child {
    border-color: rgba(255, 255, 255, 0.08);
}

.faq-item .faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 700;
    font-size: 17px;
    transition: color 0.3s;
}

.faq-item .faq-question:hover {
    color: #e94560;
}

.faq-item .faq-question .icon {
    font-size: 24px;
    font-weight: 300;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    color: #e94560;
}

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

.faq-item .faq-answer {
    padding-top: 18px;
    display: none;
    color: #666;
    line-height: 1.8;
    font-size: 15px;
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

body.dark-mode .faq-item .faq-answer {
    color: #aaa;
}

.faq-item.active .faq-answer {
    display: block;
}

/* 使用指南 */
.howto {
    background: linear-gradient(135deg, #fff 0%, #f8f8f8 100%);
}

body.dark-mode .howto {
    background: linear-gradient(135deg, #0d0d1a 0%, #111122 100%);
}

.howto-steps {
    max-width: 750px;
    margin: 0 auto;
    counter-reset: step;
}

.howto-step {
    display: flex;
    gap: 25px;
    margin-bottom: 35px;
    align-items: flex-start;
    padding: 20px;
    border-radius: 16px;
    transition: all 0.3s;
}

.howto-step:hover {
    background: rgba(233, 69, 96, 0.03);
}

body.dark-mode .howto-step:hover {
    background: rgba(233, 69, 96, 0.05);
}

.howto-step .step-num {
    counter-increment: step;
    content: counter(step);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, #e94560, #ff6b6b);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 20px;
    flex-shrink: 0;
    box-shadow: 0 4px 20px rgba(233, 69, 96, 0.3);
}

.howto-step .step-content h4 {
    font-size: 20px;
    margin-bottom: 10px;
    font-weight: 700;
}

.howto-step .step-content p {
    color: #888;
    line-height: 1.8;
    font-size: 15px;
}

body.dark-mode .howto-step .step-content p {
    color: #aaa;
}

/* 联系我们 */
.contact {
    background: linear-gradient(135deg, #f8f8f8 0%, #eee 100%);
}

body.dark-mode .contact {
    background: linear-gradient(135deg, #111122 0%, #1a1a2e 100%);
}

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

@media (max-width: 992px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

.contact-info h3 {
    font-size: 28px;
    margin-bottom: 25px;
    font-weight: 800;
    background: linear-gradient(135deg, #1a1a2e, #e94560);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

body.dark-mode .contact-info h3 {
    background: linear-gradient(135deg, #e0e0e0, #e94560);
    -webkit-background-clip: text;
    background-clip: text;
}

.contact-info .info-item {
    display: flex;
    gap: 18px;
    margin-bottom: 20px;
    align-items: flex-start;
}

.contact-info .info-item .icon {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: rgba(233, 69, 96, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #e94560;
    flex-shrink: 0;
    font-size: 20px;
    transition: all 0.3s;
}

.contact-info .info-item:hover .icon {
    background: rgba(233, 69, 96, 0.2);
    transform: scale(1.05);
}

.contact-info .info-item .text {
    font-size: 15px;
    color: #666;
    line-height: 1.6;
}

body.dark-mode .contact-info .info-item .text {
    color: #aaa;
}

.contact-form {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

body.dark-mode .contact-form {
    background: rgba(26, 26, 46, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-color: rgba(255, 255, 255, 0.05);
}

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

.contact-form label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 14px;
    color: #1a1a2e;
}

body.dark-mode .contact-form label {
    color: #e0e0e0;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid rgba(0, 0, 0, 0.08);
    border-radius: 12px;
    font-size: 15px;
    transition: all 0.3s;
    background: rgba(248, 248, 248, 0.8);
    color: #1a1a2e;
    font-family: inherit;
}

body.dark-mode .contact-form input,
body.dark-mode .contact-form textarea {
    background: rgba(13, 13, 26, 0.8);
    border-color: rgba(255, 255, 255, 0.1);
    color: #e0e0e0;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #e94560;
    box-shadow: 0 0 0 4px rgba(233, 69, 96, 0.1);
}

.contact-form textarea {
    resize: vertical;
    min-height: 130px;
}

/* 页脚 */
.footer {
    background: linear-gradient(135deg, #0d0d1a 0%, #1a1a2e 100%);
    color: rgba(255, 255, 255, 0.7);
    padding: 70px 0 35px;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(135deg, #e94560, #ff6b6b, #e94560);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 45px;
    margin-bottom: 45px;
}

.footer-grid h4 {
    color: #fff;
    font-size: 20px;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 12px;
    font-weight: 700;
}

.footer-grid h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(135deg, #e94560, #ff6b6b);
    border-radius: 2px;
}

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

.footer-grid ul li a {
    font-size: 14px;
    transition: all 0.3s;
    color: rgba(255, 255, 255, 0.6);
    display: inline-block;
}

.footer-grid ul li a:hover {
    color: #e94560;
    transform: translateX(5px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 25px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
    font-size: 13px;
}

.footer-bottom .links {
    display: flex;
    gap: 25px;
    flex-wrap: wrap;
}

.footer-bottom .links a {
    color: rgba(255, 255, 255, 0.5);
    transition: color 0.3s;
}

.footer-bottom .links a:hover {
    color: #e94560;
}

/* 返回顶部 */
.back-to-top {
    position: fixed;
    bottom: 35px;
    right: 35px;
    width: 55px;
    height: 55px;
    border-radius: 50%;
    background: linear-gradient(135deg, #e94560, #ff6b6b);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 999;
    border: none;
    font-size: 24px;
    box-shadow: 0 4px 20px rgba(233, 69, 96, 0.4);
}

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

.back-to-top:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 8px 30px rgba(233, 69, 96, 0.6);
}

/* 面包屑 */
.breadcrumb {
    padding: 18px 0;
    background: transparent;
    font-size: 14px;
    color: #888;
}

.breadcrumb a {
    color: #e94560;
    transition: color 0.3s;
}

.breadcrumb a:hover {
    color: #ff6b6b;
}

.breadcrumb span {
    margin: 0 10px;
}

/* 新闻订阅 */
.newsletter {
    background: linear-gradient(135deg, #1a1a2e, #16213e, #0f0f23);
    padding: 50px;
    border-radius: 24px;
    text-align: center;
    color: #fff;
    margin-top: 40px;
    position: relative;
    overflow: hidden;
}

.newsletter::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 50% 50%, rgba(233, 69, 96, 0.05), transparent 60%);
    animation: newsletterGlow 10s ease-in-out infinite;
}

@keyframes newsletterGlow {
    0%, 100% { transform: rotate(0deg); }
    50% { transform: rotate(180deg); }
}

.newsletter h3 {
    font-size: 26px;
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}

.newsletter p {
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 25px;
    position: relative;
    z-index: 1;
}

.newsletter .input-group {
    display: flex;
    max-width: 550px;
    margin: 0 auto;
    gap: 12px;
    position: relative;
    z-index: 1;
}

.newsletter .input-group input {
    flex: 1;
    padding: 15px 25px;
    border-radius: 50px;
    border: none;
    font-size: 15px;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.newsletter .input-group input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.newsletter .input-group button {
    padding: 15px 35px;
    border-radius: 50px;
    border: none;
    background: linear-gradient(135deg, #e94560, #ff6b6b);
    color: #fff;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 15px;
}

.newsletter .input-group button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(233, 69, 96, 0.4);
}

/* 搜索模态框 */
.search-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
}

.search-modal.open {
    display: flex;
}

.search-modal .search-box {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 40px;
    width: 90%;
    max-width: 650px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

body.dark-mode .search-modal .search-box {
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-color: rgba(255, 255, 255, 0.05);
}

.search-modal .search-box input {
    width: 100%;
    padding: 18px 25px;
    border: 2px solid rgba(0, 0, 0, 0.08);
    border-radius: 14px;
    font-size: 20px;
    transition: all 0.3s;
    background: rgba(248, 248, 248, 0.8);
    color: #1a1a2e;
}

body.dark-mode .search-modal .search-box input {
    background: rgba(13, 13, 26, 0.8);
    border-color: rgba(255, 255, 255, 0.1);
    color: #e0e0e0;
}

.search-modal .search-box input:focus {
    outline: none;
    border-color: #e94560;
    box-shadow: 0 0 0 4px rgba(233, 69, 96, 0.1);
}

.search-modal .search-box .close-btn {
    display: block;
    margin-top: 20px;
    text-align: right;
    color: #888;
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    transition: color 0.3s;
}

.search-modal .search-box .close-btn:hover {
    color: #e94560;
}

/* EEAT 区域 */
.eeat-section {
    background: linear-gradient(135deg, #f8f8f8 0%, #eee 100%);
    padding: 50px 0;
}

body.dark-mode .eeat-section {
    background: linear-gradient(135deg, #111122 0%, #1a1a2e 100%);
}

.eeat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
    gap: 30px;
}

.eeat-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 16px;
    padding: 25px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s;
}

body.dark-mode .eeat-card {
    background: rgba(26, 26, 46, 0.9);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-color: rgba(255, 255, 255, 0.05);
}

.eeat-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

body.dark-mode .eeat-card:hover {
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.eeat-card h4 {
    font-size: 18px;
    margin-bottom: 12px;
    color: #e94560;
    font-weight: 700;
}

.eeat-card p {
    font-size: 14px;
    color: #888;
    line-height: 1.7;
}

body.dark-mode .eeat-card p {
    color: #aaa;
}

/* 网站地图 */
.sitemap {
    background: linear-gradient(135deg, #fff 0%, #f8f8f8 100%);
    padding: 50px 0;
}

body.dark-mode .sitemap {
    background: linear-gradient(135deg, #0d0d1a 0%, #111122 100%);
}

.sitemap-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 25px;
}

.sitemap-grid h4 {
    font-size: 18px;
    margin-bottom: 18px;
    color: #e94560;
    font-weight: 700;
}

.sitemap-grid ul li {
    margin-bottom: 10px;
}

.sitemap-grid ul li a {
    font-size: 14px;
    color: #888;
    transition: all 0.3s;
}

.sitemap-grid ul li a:hover {
    color: #e94560;
    padding-left: 5px;
}

/* 更小屏幕响应式 */
@media (max-width: 768px) {
    .hero-text h1 {
        font-size: 32px;
    }
    .hero-text p {
        font-size: 16px;
    }
    .brand-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    .newsletter .input-group {
        flex-direction: column;
    }
    .contact-grid {
        grid-template-columns: 1fr;
    }
    .product-grid {
        grid-template-columns: 1fr;
    }
    .service-grid {
        grid-template-columns: 1fr;
    }
    .case-grid {
        grid-template-columns: 1fr;
    }
    .testimonial-grid {
        grid-template-columns: 1fr;
    }
    .news-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 26px;
    }
    .brand-stats {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .section-title h2 {
        font-size: 26px;
    }
    .hero-card {
        padding: 25px;
    }
    .contact-form {
        padding: 25px;
    }
    .newsletter {
        padding: 30px;
    }
}